Attach to Form 990 or Form 990-EZ.
See separate instructions.| (i) Name of supported organization |
(ii) EIN |
(iii) Type of organization (described on lines 1- 9 above or IRC section (see instructions)) |
(iv) Is the organization in col. (i) listed in your governing document? |
(v) Did you notify the organization in col. (i) of your support? |
(vi) Is the organization in col. (i) organized in the U.S.? |
(vii) Amount of support? |
|||
|---|---|---|---|---|---|---|---|---|---|
| Yes | No | Yes | No | Yes | No | ||||
| Total | |||||||||
| Calendar year(or fiscal year beginning in) | (a) 2006 | (b) 2007 | (c) 2008 | (d) 2009 | (e) 2010 | (f) Total | |
|---|---|---|---|---|---|---|---|
| 1 | Gifts, grants, contributions, and membership fees received. (Do not include any "unusual grants.") .... | 22,632,738 | 20,785,323 | 19,950,796 | 21,879,337 | 18,261,062 | 103,509,256 |
| 2 | Tax revenues levied for the organization's benefit and either paid to or expended on its behalf....... | ||||||
| 3 | The value of services or facilities furnished by a governmental unit to the organization without charge.. | ||||||
| 4 | Total. Add lines 1 through 3.. | 22,632,738 | 20,785,323 | 19,950,796 | 21,879,337 | 18,261,062 | 103,509,256 |
| 5 | The portion of total contributions by each person (other than a governmental unit or publicly supported organization) included on line 1 that exceeds 2% of the amount shown on line 11, column (f).. | ||||||
| 6 | Public Support. Subtract line 5 from line 4. | 103,509,256 | |||||
| Calendar year(or fiscal year beginning in) | (a) 2006 | (b) 2007 | (c) 2008 | (d) 2009 | (e) 2010 | (f) Total | |
|---|---|---|---|---|---|---|---|
| 7 | Amounts from line 4.. | 22,632,738 | 20,785,323 | 19,950,796 | 21,879,337 | 18,261,062 | 103,509,256 |
| 8 | Gross income from interest, dividends, payments received on securities loans, rents, royalties and income from similar sources.. | 1,758,955 | 1,716,212 | 1,512,451 | 1,572,008 | 1,443,239 | 8,002,865 |
| 9 | Net income from unrelated business activities, whether or not the business is regularly carried on.. | ||||||
| 10 | Other income. (Explain in Part IV.) Do not include gain or loss from the sale of capital assets.. | 9,834 | 14,798 | 2,303 | 1,132 | 14 | 28,081 |
| 11 | Total support (Add lines 7 through 10). | 111,540,202 | |||||






| Calendar year(or fiscal year beginning in) | (a) 2006 | (b) 2007 | (c) 2008 | (d) 2009 | (e) 2010 | (f) Total | |
|---|---|---|---|---|---|---|---|
| 1 | Gifts, grants, contributions, and membership fees received. (Do not include any "unusual grants.") . | ||||||
| 2 | Gross receipts from admissions, merchandise sold or services performed, or facilities furnished in any activity that is related to the organization's tax-exempt purpose...... | ||||||
| 3 | Gross receipts from activities that are not an unrelated trade or business under section 513.. | ||||||
| 4 | Tax revenues levied for the organization's benefit and either paid to or expended on its behalf... | ||||||
| 5 | The value of services or facilities furnished by a governmental unit to the organization without charge.. | ||||||
| 6 | Total. Add lines 1 through 5. | ||||||
| 7a | Amounts included on lines 1, 2, and 3 received from disqualified persons... | ||||||
| b | Amounts included on lines 2 and 3 received from other than disqualified persons that exceed the greater of $5,000 or 1% of the amount on line 13 for the year. | ||||||
| c | Add lines 7a and 7b.. | ||||||
| 8 | Public Support (Subtract line 7c from line 6.) | ||||||
| Calendar year (or fiscal year beginning in) | (a) 2006 | (b) 2007 | (c) 2008 | (d) 2009 | (e) 2010 | (f) Total | |
|---|---|---|---|---|---|---|---|
| 9 | Amounts from line 6... | ||||||
| 10a | Gross income from interest, dividends, payments received on securities loans, rents, royalties and income from similar sources.. | ||||||
| b | Unrelated business taxable income (less section 511 taxes) from businesses acquired after June 30, 1975. | ||||||
| c | Add lines 10a and 10b. | ||||||
| 11 | Net income from unrelated business activities not included in line 10b, whether or not the business is regularly carried on. | ||||||
| 12 | Other income. Do not include gain or loss from the sale of capital assets (Explain in Part IV.) | ||||||
| 13 | Total support (Add lines 9, 10c, 11 and 12.). | ||||||




| Facts And Circumstances Test |
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| Explanation |
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| Software ID: | |
| Software Version: |
Attach to Form 990 or 990-EZ.| Identifier | Return Reference | Explanation |
|---|---|---|
| FORM 990, PART VI, SECTION B, LINE 11 | A DRAFT OF THE FORM 990 SHALL BE DISTRIBUTED TO THE AUDIT COMMITTEE FOR REVIEW PRIOR TO BEING SUBMITTED TO THE IRS. THE DRAFT FORM 990 SHALL BE DISTRIBUTED EARLY ENOUGH TO PROVIDE EACH COMMITTEE MEMBER WITH A REASONABLE AMOUNT OF TIME FOR REVIEW AND SUBMISSION OF QUESTIONS OR COMMENTS PRIOR TO THE FILING DEADLINE. THE FINAL FORM 990 SHALL BE DISTRIBUTED TO EACH BOARD MEMBER PRIOR TO BEING FILED WITH THE IRS. THE DRAFT AND FINAL FORM 990 MAY BE DISTRIBUTED IN PERSON, BY REGULAR MAIL, E-MAIL, OR FAX. | |
| FORM 990, PART VI, SECTION B, LINE 12C | AHAF HAS ALL EMPLOYEES, OFFICERS, AND DIRECTORS AGREE TO THE CODE OF CONDUCT WHICH INCLUDES ADHERENCE TO THE CONFLICT OF INTEREST POLICY. EACH BOARD DIRECTOR AND OFFICER IS REQUIRED ANNUALLY TO COMPLETE A CONFLICT OF INTEREST DISCLOSURE STATEMENT. IN ADDITION, ANY VIOLATION IS THE CONFLICT OF INTEREST POLICY IS REPORTED TO THE CHIEF COMPLIANCE OFFICER AND TO AHAF COUNSEL. | |
| FORM 990, PART VI, SECTION B, LINE 15A | THE AMERICAN HEALTH ASSISTANCE FOUNDATION (AHAF) BOARD OF DIRECTORS HAS OVERALL AUTHORITY AND RESPONSIBILITY FOR APPROVING THE ANNUAL BUDGET WHICH INCLUDES COMPENSATION FOR ALL EMPLOYEES AT EVERY LEVEL INCLUDING NON-DIRECTOR OFFICERS. ALL PAY ADJUSTMENTS ARE MADE ON A YEARLY BASIS EFFECTIVE APRIL 1ST, THE BEGINNING OF THE AHAF FISCAL YEAR. BEFORE APPROVING THE COMPENSATION OF THE CEO, THE BOARD DETERMINES THE TOTAL COMPENSATION TO BE PROVIDED BY AHAF TO THE CEO IS REASONABLE IN LIGHT OF THE POSITION, RESPONSIBILITY AND QUALIFICATION OF THE POSITION HELD INCLUDING THE RESULT OF AN EVALUATION OF PRIOR PERFORMANCE FOR THE FOUNDATION, IF APPLICABLE. THE CEO IS EVALUATED ANNUALLY BY THE BOARD THROUGH THE USE OF AN IN-DEPTH GOAL ATTAINMENT STRUCTURE, (DEVELOPED WITH ADVICE FROM BOARD SOURCE) THAT INCLUDES A SELF ASSESSMENT AND BOARD ASSESSMENT AND EVALUATION AGAINST SET GOALS, OUTCOMES AND DELIVERABLES. THE BOARD OBTAINS AND CONSIDERS APPROPRIATE DATA, INCLUDING A SALARY SURVEY, WHICH INCLUDES INFORMATION COMPILED FROM THE FORM 990 OF OTHER ORGANIZATIONS, CONCERNING COMPENSATION PAID TO CEOS IN LIKE CIRCUMSTANCES. IN MAKING THE DETERMINATION, THE BOARD SHALL CONSIDER TOTAL COMPENSATION TO INCLUDE THE SALARY AND VALUE OF ALL BENEFITS PROVIDED BY AHAF TO THE INDIVIDUAL IN PAYMENT FOR SERVICES. AT THE TIME OF THE AHAF BOARD DISCUSSION AND DECISION CONCERNING THE CEOS COMPENSATION, THE CEO IS NOT PRESENT IN THE MEETING. THE BOARD SHALL SET FORTH THE BASIS FOR ITS DECISIONS WITH RESPECT TO COMPENSATION IN THE MINUTES OF THE MEETING AT WHICH THE DECISIONS ARE MADE, INCLUDING THE CONCLUSIONS OF THE EVALUATION AND THE BASIS FOR DETERMINING THAT THE INDIVIDUAL'S COMPENSATION WAS REASONABLE IN LIGHT OF THE EVALUATION AND COMPARABILITY DATA. | |
| FORM 990, PART VI, SECTION C, LINE 19 | AHAF MAKES ITS GOVERNING DOCUMENTS INCLUDING ITS ARTICLES OF INCORPORATION AND BYLAWS, CONFLICT OF INTEREST POLICY, AUDITED FINANCIAL STATEMENTS AND IRS FORM 990 AVAILABLE TO THE PUBLIC UPON REQUEST. IN ADDITION, THE PUBLIC ALSO HAS ACCESS TO THE ANNUAL REPORT, THE 1023 APPLICATION FORM WITH THE IRS, AUDITED FINANCIAL STATEMENTS, THE 501(C)(3) LETTER OF DETERMINATION AND IRS FORM 990 ON THE AHAF WEBSITE. | |
| CHANGES IN NET ASSETS OR FUND BALANCES: | FORM 990, PART XI, LINE 5: | NET UNREALIZED LOSSES ON INVESTMENTS: -1,015,819. RECOVERIES OF PRIOR YEAR GRANTS 80,908. CHANGE IN PRESENT VALUE OF GRANTS -8,922. SPECIAL EVENT NET INCOME -25,191. TOTAL TO FORM 990, PART XI, LINE 5: -969,024. |
| SCHEDULE F, PART II, LINE 1, COLUMN (D): NAME OF ORGANIZATION: CARDIFF UNIVERSITY (D) PURPOSE OF GRANT: NATIONAL GLAUCOMA RESEARCH BY DR. JULIE ALBON ENTITLED: (G2011006) DISCS AT RISK: NOVEL OPTIC NERVE HEAD PHENOTYPING IN GLAUCOMA. INVESTIGATOR'S SUMMARY: GLAUCOMA CAN BE DIFFICULT CONDITION TO DETECT IN THE EARLIEST STAGES, AND IT IS VITAL THAT TREATMENT IS GIVEN AS SOON AS POSSIBLE TO PREVENT FURTHER DAMAGE TO THE EYE DEVELOPING. CLINICAL INSTRUMENTS ARE AVAILABLE TO EXAMINE THE OPTIC NERVE HEAD WHICH AIM TO DETECT THE PRESENCE OF GLAUCOMA AND TO MONITOR ITS PROGRESSION. THESE MACHINES ARE ABLE TO EXAMINE THE FRONT SURFACE OF THE OPTIC NERVE HEAD, BUT ONLY A FEW ARE ABLE TO PROVIDE INFORMATION ON WHAT IS HAPPENING BELOW THE SURFACE. IMPORTANT CHANGES OCCUR UNDER THE SURFACE OF THE OPTIC NERVE HEAD IN GLAUCOMA AND DRS. JULIE ALBON, JAMES MORGAN, RACHEL NORTH, WOLFGANG DREXLER, MICHAEL GIRARD, AND COLLEAGUES WILL USE A NEW MACHINE (A NOVEL TYPE OF OPTICAL COHERENCE TOMOGRAPHY OR OCT), WHICH IS ABLE TO EXAMINE BOTH THE FRONT SURFACE AND PARTS BELOW THE SURFACE IN DETAIL. AS THE OPTIC NERVE LEAVES THE EYE, IT TRAVELS THROUGH HOLES (OR PORES) IN THE LAMINA CRIBROSA. IN GLAUCOMA THERE ARE CHANGES TO THESE PORES AND THE SHAPE AND STRUCTURE OF THE LAMINA CRIBROSA. DETECTING THESE CHANGES COULD BE AN IMPORTANT SIGN THAT GLAUCOMA IS DEVELOPING OR GETTING WORSE. CURRENTLY IT IS NOT POSSIBLE FOR YOUR EYE DOCTOR TO EXAMINE THE LAMINA CRIBROSA. DR. ALBON AND COLLEAGUES WILL DEVELOP METHODS TO ANALYZE THESE CHANGES IN THE LAMINA CRIBROSA SO THAT AS THE NOVEL TECHNOLOGY BECOMES MORE AVAILABLE, RESEARCHERS AND EYE DOCTORS WILL BE ABLE TO DETECT MORE RAPIDLY CHANGES TO THE OPTIC NERVE HEAD DUE TO GLAUCOMA. GRANT AWARDED: $100,000 CARDIFF UNIVERSITY, CARDIFF, UNITED KINGDOM. NAME OF ORGANIZATION: THE CHINESE UNIVERSITY OF HONG KONG (D) PURPOSE OF GRANT: NATIONAL GLAUCOMA RESEARCH BY DR. CHRISTOPHER KAI-SHUN LEUNG ENTITLED: (G2011007) ROLE OF CX3CR1 IN MICROGLIA ACTIVATION AND RETINAL GANGLION CELL DEGENERATION IN GLAUCOMA - AN IN VIVO IMAGING STUDY. INVESTIGATOR'S SUMMARY: PHYSICAL CHANGES HAPPEN TO THE RETINA DURING GLAUCOMA. HOWEVER, THESE CHANGES CAN BE TOO SMALL TO SEE WITH A MAGNIFYING DEVICE IN AN EYE DOCTOR'S OFFICE. DR. CHRISTOPHER KAI-SHUN LEUNG AND COLLABORATORS WILL USE A MACHINE, CALLED A CONFOCAL LASER SCANNING OPHTHALMOSCOPE, TO TAKE LIVE PICTURES OF THE RETINAS IN MICE BEFORE AND AFTER THEY'VE BEEN GIVEN GLAUCOMA THROUGH INCREASING THEIR EYE PRESSURE. THEY SUSPECT THAT IMMUNE CELLS OF THE RETINA, CALLED MICROGLIA, COULD PROMOTE DAMAGE TO RETINAL NEURONS. TO TRACK THEIR ACTIVITY, THEY WILL SPECIFICALLY MAKE THESE CELLS GLOW IN THE DARK. THIS IS THE FIRST STUDY TO USE LIVE IMAGING TO DIRECTLY EXAMINE THE INTERACTIONS BETWEEN RETINAL NEURONS AND MICROGLIAL CELLS IN GLAUCOMA. IN THE FUTURE, THE RESULTS FROM THIS STUDY COULD BE USED TO DESIGN DRUGS TO PREVENT THE DAMAGE TO THE RETINA CAUSED BY MICROGLIA. GRANT AWARDED: $100,000 THE CHINESE UNIVERSITY OF HONG KONG, SHATIN, HONG KONG. NAME OF ORGANIZATION: IMPERIAL COLLEGE, LONDON (D) PURPOSE OF GRANT: NATIONAL GLAUCOMA RESEARCH BY DR. DARRYL RAY OVERBY ENTITLED: (G2011020) ARE MICE GOOD MODELS FOR IOP REGULATION IN HUMAN EYES?INVESTIGATOR'S SUMMARY: THE SUCCESS OF GLAUCOMA THERAPIES DEPENDS ON HOW WELL THEY LOWER PRESSURE IN THE EYE, AND SUCCESSFUL THERAPIES ARE OFTEN DEVELOPED WITH THE HELP OF ANIMAL MODELS SUCH AS MICE. HOWEVER, A DRUG FOUND TO LOWER PRESSURE IN MICE IS USELESS IN HUMANS IF THE MACHINERY CONTROLLING EYE PRESSURE IS DIFFERENT BETWEEN THE TWO SPECIES. RECENT STUDIES SUGGEST THAT PRESSURE REGULATION IN SOME STRAINS OF MICE RELIES MORE HEAVILY ON A SECONDARY OR "UVEOSCLERAL" PATHWAY FOR FLUID DRAINAGE FROM THE EYE, WHILE HUMAN PRESSURE REGULATION DEPENDS MORE ON THE PRIMARY OR "TRABECULAR" DRAINAGE PATHWAY. NOT ALL STRAINS OF MICE, HOWEVER, APPEAR TO EXHIBIT THE SAME PREFERENCE FOR DRAINAGE ROUTES, SUGGESTING THAT SOME STRAINS MAY BETTER REPRESENT THE TRABECULAR PRESSURE REGULATION AS OCCURS IN HUMANS. IN THIS PROJECT, DR. DARRYL OVERBY AND COLLEAGUES WILL EXAMINE GENETICALLY DISTINCT STRAINS OF MICE CHOSEN BASED UPON THEIR APPARENT DIFFERENCES IN DRAINAGE BEHAVIOUR, WITH THE GOAL TO IDENTIFY WHICH OF THESE STRAINS BEST MIMICS THE MACHINERY THAT CONTROLS PRESSURE IN HUMAN EYES. THIS IS AN IMPORTANT FIRST STEP TOWARDS ESTABLISHING A RELIABLE MOUSE MODEL THAT CAN BE USED TO DEVELOP BETTER THERAPIES THAT MORE SUCCESSFULLY LOWER PRESSURE AND PRESERVE VISION IN GLAUCOMA PATIENTS. GRANT AWARDED: $100,000 IMPERIAL COLLEGE LONDON, LONDON, UNITED KINGDOM. | ||
| NAME OF ORGANIZATION: IMPERIAL COLLEGE, LONDON (D) PURPOSE OF GRANT: NATIONAL GLAUCOMA RESEARCH BY DR. MICHAEL JULIEN ALEXANDRE GIRARD ENTITLED: (G2011019) IN VIVO CORNEAL BIOMECHANICS: A BIOMARKER FOR GLAUCOMA? INVESTIGATOR'S SUMMARY: DRS. MICHAEL GIRARD AND NICK STROUTHIDIS WILL EXPLORE WHETHER THE STIFFNESS OF THE CORNEA, I.E., THE CLEAR "WINDOW" AT THE FRONT OF THE EYE, CAN PREDICT GLAUCOMA, A BLINDING OCULAR DISORDER CHARACTERIZED BY MECHANICAL DAMAGE AT THE BACK OF THE EYE. AN OPTICAL COHERENCE TOMOGRAPHY SCANNER WILL BE USED TO IMAGE IN GREAT DETAIL HOW ALL OCULAR TISSUES, INCLUDING BOTH THE FRONT AND BACK OF THE EYE, RESPOND TO A CHANGE IN INTRAOCULAR PRESSURE (THE PRESSURE THAT MAINTAINS THE SHAPE OF THE EYE). SUCH TESTING WILL ALLOW THEM, FOR THE FIRST TIME EVER, TO DEDUCE THE STIFFNESS OF THE ENTIRE EYE IN GLAUCOMA PATIENTS AND ESTABLISH A CORRELATION BETWEEN THESE STIFFNESS AND VISION LOSS. THEY ENVISION ONE DAY ASSESSING GLAUCOMA RISK BY MEASURING THE STIFFNESS OF PATIENTS' CORNEAS IN THE CLINIC. GRANT AWARDED: $100,000 IMPERIAL COLLEGE LONDON, UNITED KINGDOM. NAME OF ORGANIZATION: MAX-DELBRUECK CENTER FOR MOLECULAR MEDICINE (D) PURPOSE OF GRANT: ALZHEIMER'S DISEASE REASEARCH BY DR. MICHAEL ROHE ENTITLED: (A2011601) ROLE OF SORLA IN TRANSPORT OF TRKB AND APP IN ALZHEIMER'S DISEASE. INVESTIGATOR'S SUMMARY: THE PROTEIN CALLED SORLA WAS IDENTIFIED AS A RISK FACTOR IN ALZHEIMER'S DISEASE. IT HELPS WITH THE PRODUCTION OF BETA-AMYLOID WHICH FORMS THE CHARACTERISTIC PLAQUES IN ALZHEIMER'S DISEASE. ABNORMALLY HIGH LEVELS OF BETA-AMYLOID CAUSE THE DEATH OF NERVE CELLS IN PATIENTS, LEADING TO DEMENTIA. RECENTLY, DRS. MICHAEL ROHE, THOMAS WILLNOW, AND COLLABORATORS HAVE IDENTIFIED THE PROTECTIVE FACTOR BDNF TO ACTIVATE SORLA. REGULATION OF SORLA BY BDNF REDUCES THE AMOUNT OF BETA-AMYLOID. AN ABNORMALLY LOW LEVEL OF BDNF IS ASSOCIATED WITH ALZHEIMER'S DISEASE, BECAUSE THIS CAUSES LOW LEVELS OF SORLA THAT THEN LEADS TO HIGH LEVELS OF TOXIC BETA-AMYLOID. BETA-AMYLOID IS PRODUCED FROM THE PROTEIN APP, AND BDNF EXERTS ITS PROTECTIVE FUNCTION THROUGH BINDING TO THE PROTEIN TRKB. BOTH APP AND TRKB ARE BOUND BY SORLA THAT IS THOUGHT TO CONTROL THEIR TRANSPORT WITHIN THE CELL. TO SORT OUT THIS COMPLICATED INTERACTION OF PROTEINS, DR. ROHE AND COLLABORATORS WILL FIND OUT EXACTLY HOW SORLA WORKS IN CONCERT WITH APP AND TRKB. THEIR DISCOVERIES COULD POTENTIALLY LEAD TO A NEW DISEASE-MODIFYING TREATMENT DESIGNED TO INCREASE THE LEVELS OF SORLA IN THE BRAIN IN ORDER TO PREVENT THE RELEASE OF BETA-AMYLOID AND STOP PLAQUE FORMATION. GRANT AWARDED: $100,000 MAX-DELBRUECK CENTER FOR MOLECULAR MEDICINE, BERLIN, GERMANY. NAME OF ORGANIZATION: SINGAPORE EYE RESEARCH INSTITUTE (D) PURPOSE OF GRANT: MACULAR DEGENERATION RESEARCH BY DR. TIEN YIN WONG ENTITLED: (M2011068) GENETIC MARKERS OF ASIAN AGE RELATED MACULAR DEGENERATRION. INVESTIGATOR'S SUMMARY: PEOPLE WITH CAUCASIAN ETHNICITY (WHITE WITH EUROPEAN ANCESTRY) HAVE AN INCREASED RISK FOR AGE-RELATED MACULAR DEGENERATION (AMD). IN FACT, MANY OF THE CURRENTLY KNOWN RISK GENES WERE DISCOVERED BY STUDYING DNA FROM CAUCASIANS. USING FUNDS FROM A 2011 MACULAR DEGENERATION RESEARCH GRANT, DRS. TIEN YIN WONG, BELINDA CORNES, AND COLLABORATORS WILL FURTHER CHARACTERIZE THE GENETIC RISKS FOR AMD IN ASIANS, IN THE FIRST MAJOR POPULATION-BASED STUDY OF ITS KIND. THEY WILL COMPARE THE GENE DIFFERENCES AMONG PEOPLE OF THREE TYPES OF ETHNICITIES (CHINESE, MALAY, AND INDIAN) IN SINGAPORE, WHERE IT IS POSSIBLE FOR PEOPLE FROM THESE ETHNIC GROUPS TO HAVE SIMILAR SOCIOECONOMIC STATUS AND ENVIRONMENTAL EXPOSURES. THE DISCOVERY OF NEW RISK GENES FOR AMD MAY GIVE CLUES TO HOW THIS DISEASE STARTS AND/OR PROGRESSES, AND SUCH INSIGHT MAY LEAD TO PREVENTIONS AND TREATMENTS. GRANT AWARDED: $94,561 SINGAPORE EYE RESEARCH INSTITUTE, SINGAPORE. | ||
| NAME OF ORGANIZATION: TRINITY COLLEGE, DUBLIN (D) PURPOSE OF GRANT: MACULAR DEGENERATION RESEARCH BY DR. PETER HUMPHRIES ENTITLED: (M2011034) THE INFLAMMASOME AND NOVEL THERAPEUTIC TARGETS IN AMD. INVESTIGATOR'S SUMMARY: THE BODY'S IMMUNE SYSTEM CAN WARD OFF ATTACKS BY BACTERIA, VIRUSES AND OTHER EXTERNAL THREATS. HOWEVER, IT ALSO HAS SYSTEMS IN PLACE TO RESPOND TO INTERNAL THREATS, LIKE THE BUILD-UP OF DRUSENTINY WASTE DEPOSITS IN THE BACK OF THE EYE-THAT HAPPENS IN AGE-RELATED MACULAR DEGENERATION (AMD). IN PREVIOUS STUDIES, DRS. PETER HUMPHRIES, MATTHEW CAMPBELL, AND COLLEAGUES HAVE OBSERVED THAT DRUSEN CAN TRIGGER A LOCALIZED IMMUNE RESPONSE BY A COLLECTION OF PROTEINS CALLED THE "INFLAMMASOME." IN THIS PROJECT, THEY WILL DETERMINE WHY THIS OCCURS AND WHAT COMPONENTS OF THE INFLAMMASOME PLAY KEY ROLES IN CAUSING AMD. THIS GROUP WILL ALSO SCREEN A RANGE OF DRUGS THAT COULD TIP THE PROTEIN COMPOSITION OF DRUSEN TO A HEALTHY RATIO TO BETTER-TREAT AMD. MANY OF THE DRUGS THEY WILL USE IN THE SCREEN ALREADY HAVE REGULATORY APPROVAL FOR HUMAN USE, WHICH MAY ACCELERATE THEIR ENTRY INTO HUMAN CLINICAL TRIALS. GRANT AWARDED: $100,000 TRINITY COLLEGE DUBLIN, DUBLIN, IRELAND. | ||
| SCHEDULE I, PART II, LINE 1, COLUMN (H): NAME OF ORGANIZATION OR GOVERNMENT: UNIVERSITY OF PENNSYLVANIA (H) PURPOSE OF GRANT OR ASSISTANCE: ALZHEIMER'S DISEASE REASEARCH BY DR. PAUL H. AXELSEN ENTITLED: (A2011044) OXIDATIVE LIPID DEGRADATION IN ALZHEIMER'S DISEASE. INVESTIGATOR'S SUMMARY: WE ALL NEED OXYGEN TO SURVIVE, BUT OXYGEN CAN REACT WITH CHEMICALS IN THE BODY TO CREATE HARMFUL BYPRODUCTS AND "OXIDATIVE STRESS." DR. PAUL AXELSEN AND COLLEAGUES WILL STUDY THE ROLE OF OXIDATIVE STRESS IN ALZHEIMER'S DISEASE. THEY WILL ATTEMPT TO DETERMINE HOW OXIDATIVE STRESS CAUSES CHEMICAL CHANGES IN DIETARY FATS (INCLUDING OMEGA-3 AND OMEGA-6) THAT CAN DAMAGE BRAIN AMYLOID PROTEINS. THESE RESEARCHERS WILL USE SPECIAL TRACERS ON THE FATS TO DETECT THE CHANGES IN DIETARY FATS AND IN THE AMYLOID PROTEINS OF MOUSE MODELS OF ALZHEIMER'S DISEASE AND OXIDATIVE STRESS. THE RESULTS FROM THIS STUDY MAY GIVE IDEAS ON HOW TO FIGHT OXIDATIVE STRESS IN THE HUMAN BRAIN. NAME OF ORGANIZATION OR GOVERNMENT: UNIVERSITY OF MIAMI (H) PURPOSE OF GRANT OR ASSISTANCE: ALZHEIMER'S DISEASE REASEARCH BY DR. MARGARET A. PERICAK-VANCE ENTITLED: (A2011048) WHOLE EXOME SEQUENCING IN ALZHEIMER DISEASE. INVESTIGATOR'S SUMMARY: THERE ARE A NUMBER OF GENES THAT ARE ASSOCIATED WITH ALZHEIMER'S DISEASE, BUT THERE ARE MANY MORE YET TO BE DISCOVERED. IN THIS PROPOSED PROJECT, DRS. MARGARET A. PERICAK-VANCE, STEPHAN ZHUCHNER, AND COLLEAGUES WILL STUDY LARGE FAMILIES WITH ALZHEIMER'S, TO INCREASE THE CHANCES OF DISCOVERING A STRONG GENETIC RISK OF DEVELOPING THIS DISEASE. THESE RESEARCHERS WILL USE NEW GENE READING TECHNIQUES TO LOOK AT THE "WHOLE EXOME" (OR THE DNA SPELLING OF THE MOST-USED BOOKS IN A PERSON'S GENETIC LIBRARY) TO FILTER OUT A SMALL SET OF CANDIDATES. THESE CANDIDATES WILL THEN BE DOUBLE-CHECKED BY CONFIRMING THEIR IDENTITIES IN THE DNA FROM OTHER GROUPS OF PEOPLE WITH ALZHIEMER'S. KNOWING THE IDENTITY OF ALZHEIMER'S GENES COULD AID WITH INITIAL DIAGNOSES AND LEAD TO FUTURE PREVENTIONS AND TREATMENTS. NAME OF ORGANIZATION OR GOVERNMENT: UNIVERSITY OF CHICAGO (H) PURPOSE OF GRANT OR ASSISTANCE: ALZHEIMER'S DISEASE REASEARCH BY DR. SANGRAM S. SISODIA ENTITLED: (A2011054) STRUCTURE AND FUNCTIONAL ANALYSIS OF NICASTRIN. INVESTIGATOR'S SUMMARY: BETA-AMYLOID, THE STICKY PROTEIN THAT IS THE MAIN COMPONENT OF BRAIN PLAQUES IN ALZHEIMER'S DISEASE, IS CREATED BY CLIPPING IT FROM A BIGGER PROTEIN, CALLED BETA-AMYLOID PRECURSOR PROTEIN (APP). THIS CLIPPING OF APP IS DONE BY GAMMA SECRETASE, A BUNDLE OF PROTEINS THAT INCLUDES PRESENILIN 1 OR 2, APH-1, PEN-2, AND NICASTRIN (NCT). NCT IS THE PART OF THE BUNDLE THAT RECOGNIZES AND PULLS INTO THE COMPLEX MANY OF THE PROTEINS, INCLUDING APP, THAT ARE THEN PROCESSED BY THE REST OF THE GAMMA SECRETASE PROTEINS. DRS. SANGRAM SISODIA, SHOHEI KOIDE, AND COLLABORATORS WILL STUDY THE SHAPE OF NCT TO BETTER UNDERSTAND HOW IT PARTNERS WITH OTHER PROTEINS. THEY WILL MAKE ANTIBODIES THAT BIND LIKE A LOCK AND KEY TO DIFFERENT PARTS OF NCT TO AID IN THEIR ANALYSIS. ONCE THE SHAPE OF NCT IS DETERMINED, THE NEXT STEP WILL BE TO DESIGN AND TEST NEW DRUGS TO SPECIFICALLY BLOCK NCT FROM BINDING TO APP AND, AS A RESULT, PREVENT THE CREATION OF BETA-AMYLOID. | ||
| NAME OF ORGANIZATION OR GOVERNMEN: MEDICAL UNIVERSITY OF SOUTH CAROLINA (H) PURPOSE OF GRANT OR ASSISTANCE: ALZHEIMER'S DISEASE REASEARCH BY DR. NARAYAN R. BHAT ENTITLED: (A2011081) ROLE OF A STRESS KINASE IN AD PATHOGENESIS. INVESTIGATOR'S SUMMARY: THE PROTEIN CALLED "P38 MAP KINASE" IS IMPORTANT FOR MANY FUNCTIONS IN THE BODY, AND PROBLEMS WITH THIS PROTEIN CAN CAUSE INFLAMMATION AND INTERRUPT NERVE CELL COMMUNICATION IN ALZHEIMER'S DISEASE. DR. NARAYAN BHAT AND COLLABORATORS PLAN TO CREATE AND STUDY A NEW MOUSE MODEL OF ALZHEIMER'S. TO MAKE THIS MODEL, THEY WILL CHANGE THE P38 MAP KINASE PROTEINS IN TWO PARTS OF THE BRAIN, NAMELY IN IMMUNE CELLS CALLED MICROGLIA, AND AT THE POINTS WHERE THE NERVE CELLS COMMUNICATE, CALLED SYNAPSES. THE CHANGES IN MICROGLIA, SYNAPSES AND OVERALL BRAIN HEALTH WILL BE MONITORED BY STATE-OF-THE-ART TECHNIQUES, INCLUDING LABELING CELLS WITH A SPECIAL DYE AND EXAMINING THEM UNDER A SPECIAL MICROSCOPE. INFORMATION OBTAINED FROM THIS STUDY MAY HELP TO DIRECT FUTURE DRUG THERAPIES. NAME OF ORGANIZATION OR GOVERNMENT: MAYO CLINIC (H) PURPOSE OF GRANT OR ASSISTANCE: ALZHEIMER'S DISEASE REASEARCH BY DR. EUGENIA TRUSHINA ENTITLED: (A2011084) ROLE OF HISTONE DEACETYLASE IN AD MITOCHONDRIAL DYSFUNCTION. INVESTIGATOR'S SUMMARY: HISTONE DEACETYLASE 1 (HDAC1) IS A PROTEIN THAT CONTROLS GENE ACTIVITY. PROBLEMS WITH HDAC1 CAN BOTH DISRUPT THE ACTIVITIES OF OTHER GENES, AND CAN PROMOTE CELL DEATH BY DISRUPTING MOVEMENT OF THE MITOCHONDRIA, THE CELL'S "ENERGY POWERHOUSES." DR. EUGENIA TRUSHINA, DR. JOSEPH PODUSLO, AND COLLEAGUES WILL LOOK FOR WHAT SPECIFICALLY CAUSES THE PROBLEM WITH MITOCHONDRIAL MOVEMENT. IN PARTICULAR, THEY'LL LOOK AT THE EFFECT OF BETA-AMYLOID PROTEINS ON MITOCHONDRIAL MOTILITY IN CULTURED CELLS AND IN BRAIN SLICES FROM MICE WITH ALZHIEMER'S. ONCE THEY PINPOINT THE MECHANISM OF DYSFUNCTION, THE NEXT STEP WOULD BE TO CREATE AND TEST DRUGS THAT RESTORE THE MITOCHONDRIAL TRANSPORT AND, HOPEFULLY, PREVENT PROGRESSION OF THE DISEASE. NAME OF ORGANIZATION OR GOVERNMENT: MASSACHUSETTS GENERAL HOSPITAL (H) PURPOSE OF GRANT OR ASSISTANCE: ALZHEIMER'S DISEASE REASEARCH BY DR. BRADLEY T. HYMAN ENTITLED: (A2011086) A MODEL OF EARLY ALZHEIMER DISEASE. INVESTIGATOR'S SUMMARY: THE ENTORHINAL CORTEX IS THE PART OF THE BRAIN THAT IS RESPONSIBLE FOR COMMUNICATIONS TO AND FROM THE HIPPOCAMPUS (WHICH, IN TURN, IS THE PART OF THE BRAIN THAT'S IMPORTANT FOR CREATING AND MAINTAINING MEMORIES). IN ALZHEIMER'S DISEASE, BRAIN LESIONS TEND TO START IN THE ENTORHINNAL CORTEX AND "SPREAD" TO OTHER PARTS, WITH DEVASTATING EFFECTS. ONE OF THE LESIONS FORMED IN ALZHEIMER'S ARE CALLED "TANGLES" THAT CONTAIN TAU PROTEIN. DRS. BRADLEY HYMAN, TERESA GOMEZ-ISLA, AND COLLEAGUES WILL STUDY HOW ALZHEIMER'S AFFECTS THE ENTORHINNAL COMPLEX AND HOW THE LESIONS SPREAD FROM THIS INITIAL PLACE OF DAMAGE TO OTHER PARTS OF THE BRAIN. THEY WILL CREATE AND STUDY A NEW MOUSE MODEL OF ALZHEIMER'S WHERE TAU PROTEIN IS DIRECTED TO BE EXPRESSED ONLY IN THE ENTORHINNAL CORTEX. AMYLOID, THE OTHER KEY MOLECULE IN ALZHEIMER'S AFFECTS THE CONNECTIONS BETWEEN NEURONS THAT ORIGINATE IN THE ENTORHINAL CORTEX. OTHER MOUSE MODELS DON'T ADDRESS THE SPREAD OF LESIONS, BUT THIS MODEL IS DESIGNED TO ISOLATE THIS KEY PART OF PROGRESSION TO LATER STAGES OF ALZHEIMER'S. IN THE FUTURE, THIS MODEL COULD THEN BE USED FOR TESTING TREATMENTS TO HALT THE SPREAD OF THE LESIONS, AND THE INTERACTION OF LESIONS, BEFORE THEY CAUSE CELL DAMAGE AND DEATH IN OTHER PARTS OF THE BRAIN. | ||
| NAME OF ORGANIZATION OR GOVERNMENT: CASE WESTERN RESERVE UNIVERSITY (H) PURPOSE OF GRANT OR ASSISTANCE: ALZHEIMER'S DISEASE REASEARCH BY DR. GARY E. LANDRETH ENTITLED: (A2011102) RXR: A THERAPEUTIC TARGET IN NEURODEGENERATIVE DISEASE. INVESTIGATOR'S SUMMARY: A DRUG THAT IS TAKEN BY MOUTH HAS BEEN SHOWN TO LOWER BETA-AMYLOID LEVELS AND REMOVE EXISTING PLAQUES IN THE BRAINS OF MOUSE MODELS WITH ALZHEIMER'S DISEASE. IN THIS RESEARCH PROJECT, DR. GARY LANDRETH AND COLLEAGUES WILL BE TESTING WHETHER THIS DRUG ALSO CAN PREVENT DAMAGE TO BRAIN CELLS IN ANOTHER TYPE OF ALZHEIMER'S DISEASE MOUSE. IF IT DOES HAVE PROTECTIVE EFFECTS, IT COULD BE PUT ON THE FAST TRACK FOR HUMAN CLINICAL TRIALS. THIS DRUG HOLDS PARTICULAR PROMISE DUE TO ITS DISEASE MODIFYING ACTIONS. NAME OF ORGANIZATION OR GOVERNMENT: UNIVERSITY OF PENNSYLVANIA (H) PURPOSE OF GRANT OR ASSISTANCE: ALZHEIMER'S DISEASE REASEARCH BY DR. KURT R. BRUNDEN ENTITLED: (A2011303) IN VIVO TESTING OF NOVEL TAU FIBRILLIZATION INHIBITORS. INVESTIGATOR'S SUMMARY: ONE OF THE HALLMARKS OF ALZHEIMER'S DISEASE IS THE UNNATURAL CLUMPING OF MISFOLDED TAU PROTEINS INTO TANGLES IN THE BRAIN. THESE TANGLES, ALONG WITH BETA-AMYLOID PLAQUES, CAUSE BRAIN CELL DEATH AND PROBLEMS WITH MEMORY AND OTHER IMPORTANT ACTIVITIES. DR. KURT BRUNDEN AND COLLEAGUES WILL BE TESTING A NUMBER OF DRUGS ON ALZHEIMER'S DISEASE MICE TO SEE WHETHER ONE OF THEM CAN PREVENT TAU FROM CLUMPING. THE DRUG THAT WORKS IN MICE MAY BE A CANDIDATE FOR FUTURE ALZHEIMER'S DISEASE HUMAN CLINICAL TRIALS. NAME OF ORGANIZATION OR GOVERNMENT: ROCKEFELLER UNIVERSITY (H) PURPOSE OF GRANT OR ASSISTANCE: ALZHEIMER'S DISEASE REASEARCH BY DR. MARTA CORTES-CANTELI ENTITLED: (A2011310) ROLE OF FIBRINOGEN IN ALZHEIMER'S DISEASE NEURONAL AND SYNAPTIC LOSS. INVESTIGATOR'S SUMMARY: PEOPLE WHO HAVE ALZHEIMER'S DISEASE CAN ALSO HAVE BLOCKED BRAIN BLOOD VESSELS THAT ACCELERATE PROBLEMS WITH MEMORY AND OTHER BRAIN ACTIVITIES. IN A PREVIOUS AHAF GRANT, DR. MARTA CORTES-CANTELI AND COLLABORATORS SHOWED THAT BETA-AMYLOID PROTEIN BINDS TO THE BLOOD CLOTTING PROTEIN, CALLED FIBRINOGEN, AND PREVENTS IT FROM BUSTING-UP CLOTS. THE RESULTING BLOCK IN BLOOD FLOW CAN LEAD TO INCREASED INFLAMMATION, LOSS OF COMMUNICATION BETWEEN NERVES, AND DEATH IN THOSE PARTS OF THE BRAIN. MOREOVER, DECREASING THE AMOUNT OF FIBRINOGEN HAS BEEN SHOWN TO REDUCE MEMORY LOSS IN MOUSE MODELS OF ALZHEIMER'S DISEASE. IN THIS PROJECT, DR. CORTES-CANTELI WILL STUDY MOUSE AND HUMAN BRAIN SAMPLES TO DETERMINE WHETHER FIBRINOGEN IS FOUND IN THE SAME LOCATIONS WHERE NERVE CELLS STOP COMMUNICATING. THEY WILL ALSO TREAT ALZHEIMER'S DISEASE MICE WITH DRUGS THAT DECREASE FIBRINOGEN LEVELS TO CHECK WHETHER THE NEURONS COMMUNICATE BETTER ONCE CLOTS ARE REMOVED AND BLOOD FLOW HAS BEEN RESTORED. IT IS EXTREMELY IMPORTANT TO PREVENT NEURONS FROM DYING, AND THIS WORK WILL GIVE CLUES ON HOW TO PREVENT IT AND WILL SUPPORT THE DESIGN OF THERAPEUTIC STRATEGIES AIMED AT BLOCKING OR DECREASING THE BLOOD CLOT FORMATION OBSERVED IN ALZHEIMER'S DISEASE. | ||
| NAME OF ORGANIZATION OR GOVERNMENT: RESEARCH FOUNDATION FOR MENTAL HYGIENE, INC. AT IBR (H) PURPOSE OF GRANT OR ASSISTANCE: ALZHEIMER'S DISEASE REASEARCH BY DR. MASUO OHNO ENTITLED: (A2011311) EIF2A KINASE GCN2 AS A TARGET FOR ALZHEIMER'S THERAPY. INVESTIGATOR'S SUMMARY: CHANGES IN THE ACTIVITY OF SPECIFIC BRAIN PROTEINS LEAD TO AN INCREASE IN BETA-AMYLOID PROTEIN, CELL DEATH, AND LOSS OF MEMORY IN ALZHEIMER'S DISEASE. DR. MASUO OHNO AND COLLEAGUES ARE LOOKING AT THREE PROTEIN "PLAYERS" THAT INCREASE THE LEVELS OF BETA-AMYLOID EXPRESSION, INCLUDING GCN2, EIF2ALPHA, AND BACE1. THE GCN2 PROTEIN ADDS A SPECIAL CHEMICAL GROUP, CALLED A "PHOSPHATE", TO THE EIF2ALPHA PROTEIN. THIS CHANGED EIF2ALPHA THEN ELEVATES BACE1, A KEY ENZYME RESPONSIBLE FOR BETA-AMYLOID PRODUCTION. THE CHANGED EIF2ALPHA ALSO SUPPRESSES THE ACTIVITY OF THE CREB PROTEIN. CREB HELPS MEMORIES TO FORM, SO REDUCING ITS ACTIVITY IS BAD NEWS FOR THE BRAIN. TO BREAK THIS DUAL HARMFUL CYCLE, THEY WILL REMOVE THE GCN2 GENE FROM MICE WITH ALZHEIMER'S DISEASE SO THAT A PHOSPHATE WON'T BE ADDED TO EIF2ALPHA AND, THEREFORE, WON'T ELEVATE BACE1 OR SUPPRESS CREB. STOPPING THE BACE1 ELEVATION AND THE LOSS OF CREB ACTIVITY COULD IMPROVE THE MEMORIES OF THESE MICE. THEIR DISCOVERIES WILL HELP TO UNDERSTAND THE KEY CHEMICAL CHANGES THAT HAPPEN AS ALZHEIMER'S DISEASE PROGRESSES, AND COULD LEAD TO NEW POSSIBILITIES FOR DISEASE-MODIFYING DRUGS. NAME OF ORGANIZATION OR GOVERNMENT: RENSSELAER POLYTECHNIC INSTITUTE (H) PURPOSE OF GRANT OR ASSISTANCE: ALZHEIMER'S DISEASE REASEARCH BY DR. PETER MATTHEW TESSIER ENTITLED: (A2011355) STRUCTURE OF ABETA C-TERMINAL DOMAIN IN TOXIC OLIGOMERS. INVESTIGATOR'S SUMMARY: A PROTEIN CALLED AMYLOID PRECURSOR PROTEIN (APP) CAN BE CUT INTO TOXIC AND NON-TOXIC FORMS OF BETA-AMYLOID. THE TOXIC FORMS OF BETA-AMYLOID (CALLED BETA-AMYLOID 42) MISFOLD AND CLUMP TOGETHER INTO BRAIN PLAQUES, A HALLMARK OF ALZHEIMER'S DISEASE. OTHER BETA-AMYLOID FRAGMENTS OF APP DO NOT MISFOLD. DR. PETER TESSIER AND COLLABORATORS WILL USE NEW DETECTION METHODS TO STUDY THE DIFFERENCES BETWEEN TOXIC AND NON-TOXIC FOLDING OF BETA-AMYLOID PROTEINS IN ALZHEIMER'S DISEASE. THEIR LONG TERM GOAL IS TO DESIGN A DRUG THAT COULD PREVENT THIS FOLDING AND CLUMPING. IF SUCCESSFUL, THIS METHOD COULD BE APPLIED TO TOXIC MISFOLDING THAT HAPPENS IN OTHER NEURODEGENERATIVE DISEASES, LIKE PARKINSON'S DISEASE, HUNTINGTON'S DISEASE, AND PRION DISEASE (INCLUDING CREUTZFELD-JACOB OR "MAD COW" DISEASE). NAME OF ORGANIZATION OR GOVERNMENT: NORTHWESTERN UNIVERSITY (H) PURPOSE OF GRANT OR ASSISTANCE: ALZHEIMER'S DISEASE REASEARCH BY KEN A. PALLER, PH. D. ENTITLED: (A2011362) ENTRAINMENT OF SLOW-WAVE SLEEP TO IMPROVE MEMORY IN MCI. INVESTIGATOR'S SUMMARY: PROFESSOR PALLER AND HIS COLLABORATORS HAVE PREVIOUSLY INVESTIGATED SLEEP PROBLEMS IN ALZHEIMER'S DISEASE. IN ONE STUDY, LED BY DR. CARMEN WESTERBERG, PATIENTS WHO HAD RECEIVED A DIAGNOSIS OF AMNESTIC MILD COGNITIVE IMPAIRMENT (WHICH CAN PROGRESS TO ALZHEIMER'S DISEASE AND IS ALSO KNOWN AS MCI) REPORTED THAT THEIR SLEEP WAS NOT AS RESTFUL AS NORMAL. A SUBSEQUENT STUDY SHOWED THAT PHYSIOLOGICAL MEASURES OF SLEEP IN PATIENTS WITH MCI WERE ALTERED FROM WHAT WOULD BE EXPECTED BASED ON THEIR AGE. PROMINENT REDUCTIONS WERE OBSERVED IN DEEP SLEEP, WHICH IS WHEN SLOW WAVES ARE APPARENT IN MEASURES OF BRAIN ELECTRICAL ACTIVITY. ANALYSES OF MEMORY SUGGESTED THAT REDUCED DEEP SLEEP COULD HAVE CONTRIBUTED TO PATIENTS' DECLINING MEMORY ABILITIES. THE PARTICULAR TYPE OF MEMORY THAT IS DEFICIENT IN AMNESTIC MCI CONCERNS REMEMBERING FACTS AND EVENTS AND IS KNOWN AS DECLARATIVE MEMORY. NEW RESEARCH IN PROFESSOR PALLER'S LAB IS TESTING THE HYPOTHESIS THAT POOR SLEEP IS AN IMPORTANT FACTOR CONTRIBUTING TO MEMORY DYSFUNCTION IN THESE PATIENTS. EACH PARTICIPANT IN THIS RESEARCH WILL LEARN SOME FACTUAL MATERIAL PRIOR TO AN AFTERNOON NAP. EEG RECORDINGS WILL BE USED TO VERIFY SLEEP IN EACH PARTICIPANT AND ALLOW FOR ANALYSES OF BRAIN ACTIVITY DURING SLEEP. DURING SOME OF THESE NAPS, ARTIFICIAL ELECTRICAL SIGNALS WILL BE USED TO STIMULATE DEEP SLEEP. BY PROMOTING THE TYPE OF BRAIN ACTIVITY THAT OCCURS DURING DEEP SLEEP, THE INVESTIGATORS EXPECT TO ALSO IMPROVE MEMORY STORAGE. AFTER PARTICIPANTS WAKE UP, MEMORY TESTS WILL BE ADMINISTERED IN ORDER TO DETERMINE WHETHER RECALL IS SUPERIOR WITH VERSUS WITHOUT STIMULATION DURING SLEEP. THE RESULTS WILL INCREASE UNDERSTANDING OF THE EXTENT TO WHICH HEALTHY MEMORY FUNCTION DEPENDS ON BRAIN EVENTS THAT TAKE PLACE DURING SLEEP, AND WILL HAVE RAMIFICATIONS FOR EFFORTS TO IMPROVE MEMORY IN PEOPLE WHO ARE SUFFERING FROM A DECLINE IN MEMORY FUNCTION. | ||
| NAME OF ORGANIZATION OR GOVERNMENT: MEDICAL COLLEGE OF WISCONSIN (H) PURPOSE OF GRANT OR ASSISTANCE: ALZHEIMER'S DISEASE REASEARCH BY DR. NASHAAT Z. GERGES ENTITLED: (A2011367) BETA AMYLOID-INDUCED SYNAPTIC PLASTICITY IMBALANCE AND NEUROGRANIN. INVESTIGATOR'S SUMMARY: PREVIOUS STUDIES HAVE FOUND THAT THE ALZHEIMER'S DISEASE BETA-AMYLOID PROTEIN NEGATIVELY INFLUENCES BRAIN CELLS (NEURONS) AND RESULTS IN A COMMUNICATION BREAKDOWN BY CAUSING A LOSS OF "PLASTICITY" AT THE SYNAPSES (THE PLACE WHERE NEURONS MEET), LEADING TO LEARNING AND MEMORY LOSS. IN A PREVIOUS STUDY, DR. NASHAAT GERGES AND COLLEAGUES HAVE SHOWN THAT INCREASING NEUROGRANIN ENHANCES THE ABILITY OF THE SYNAPSES TO COMMUNICATE. IN THIS PROJECT, THEY WILL EXPLORE THE POSSIBILITY THAT NEUROGRANIN MAY REVERSE THE NEGATIVE EFFECT OF BETA AMYLOID ON SYNAPTIC PLASTICITY. THEY WILL USE A SPECIAL TECHNIQUE THAT GROWS NEURONS IN A DISH, GIVING EASY ACCESS FOR TREATMENTS AND ANALYSIS OF RESULTS. IF SUCCESSFUL, THIS COULD LEAD TO FUTURE THERAPIES FOR INDIVIDUALS WITH ALZHEIMER'S DISEASE. NAME OF ORGANIZATION OR GOVERNMENT: MAYO CLINIC (H) PURPOSE OF GRANT OR ASSISTANCE: ALZHEIMER'S DISEASE REASEARCH BY DR. MICHAEL ANTHONY DETURE ENTITLED: (A2011368) RESTORATION OF THE 3R:4R TAU EQUILIBRIUM AS A TAUOPATHY THERAPY. INVESTIGATOR'S SUMMARY: TWO HALLMARKS OF ALZHEIME'S DISEASE ARE PLAQUES AND TANGLES-PROTEIN DEPOSITS IN THE BRAIN THAT CAN LEAD TO NERVE CELL DEATH AND MEMORY PROBLEMS. TANGLES ARE FORMED WHEN A CERTAIN TYPE OF PROTEIN, CALLED TAU, BECOMES STICKY AND FORMS MESSY BLOBS INSIDE OF NERVE CELLS. DR. MICHAEL DETURE AND COLLABORATORS THINK THAT TANGLES ARE FORMED WHEN THE NATURAL BALANCE OF TWO VERSIONS OF TAU TIP TO THE STICKY FORM, AND THAT BY SETTING THE BALANCE STRAIGHT AGAIN THEY CAN PREVENT TANGLES FROM FORMING. IN THIS PROJECT, THEY WILL GENETICALLY INCREASE THE EXPRESSION LEVELS OF THE NON-STICKY FORM OF TAU IN A MOUSE MODEL OF ALZHEIMER'S. THIS SHOULD RESTORE THE BALANCE OF THE RATIOS AND PERHAPS PREVENT THE TANGLES FROM FORMING. IF THEY DO FIND A WAY TO RESTORE THE BALANCE OF TAU EXPRESSION, THEN THIS COULD BE AN EXCITING NEW TREATMENT TO BLOCK OR REVERSE THE FORMATION OF TANGLES IN INDIVIDUALS WITH ALZHEIMER'S DISEASE. NAME OF ORGANIZATION OR GOVERNMENT: LERNER RESEARCH INSTITUTE, CLEVELAND CLINIC FOUNDATION (H) PURPOSE OF GRANT OR ASSISTANCE: ALZHEIMER'S DISEASE REASEARCH BY DR. KIRAN BHASKAR ENTITLED: (A2011372) ROLE OF P38 MAPK IN THE MICROGLIAL-MEDIATED ALZHEIMER'S DISEASE TAU PATHOLOGY. INVESTIGATOR'S SUMMARY: DR. KIRAN BHASKAR'S LABORATORY HAS ALREADY SHOWN THAT INFLAMMATION BY A PARTICULAR IMMUNE CELL, CALLED MICROGLIA, CAN START AND ACCELERATE TANGLES IN CELL CULTURES AND IN A TRANSGENIC MOUSE MODEL OF ALZHEIMER'S DISEASE. A PROTEIN, CALLED P38 MAPK, IS INVOLVED WITH THIS INFLAMMATION AND SUBSEQUENT CREATION OF TANGLES. DR. BHASKAR AND COLLABORATORS WILL DETERMINE WHETHER A DRUG, CALLED 069A, WILL TARGET THE P38 MAPK PROTEIN AND PREVENT TANGLES FROM FORMING IN THE BRAINS OF MICE WITH A HUMAN FORM OF ALZHEIMER'S DISEASE. COLLABORATORS HAVE ADAPTED THE 069A DRUG TO ENABLE IT TO BE TAKEN BY MOUTH AND GET INTO THE BRAIN. IF AN EXPERIMENTAL INCREASE IN P38 MAPK CAUSES AN INCREASE IN TANGLES AND INTERVENTION WITH 069A PREVENTS IT, THEN A FUTURE GOAL WOULD BE TO TEST THIS DRUG IN A HUMAN CLINICAL TRIAL FOR TREATMENT OF ALZHEIMER'S DISEASE. | ||
| NAME OF ORGANIZATION OR GOVERNMENT: THE UNIVERSITY OF TEXAS HEALTH SCIENCE CENTER AT SAN ANTONIO (H) PURPOSE OF GRANT OR ASSISTANCE: ALZHEIMER'S DISEASE REASEARCH BY DR. BIJU K. CHANDU ENTITLED: (A2011615) IPS-DERIVED MICROGLIA-BASED GENE THERAPY FOR ALZHEIMER'S. INVESTIGATOR'S SUMMARY: THERAPIES USING YOUR OWN (SELF-DERIVED) BONE MARROW CELLS HAVE PROMISE FOR TREATING MANY DIFFERENT DISEASES, INCLUDING ALZHEIMER'S DISEASE. THIS TYPE OF SELF-RECOGNIZING STEM CELL THERAPY HAS AN INCREASED CHANCE OF SUCCESS, BECAUSE ONE CAN AVOID THE PESKY PROBLEM OF THE IMMUNE SYSTEM LABELING THE CELLS AS FOREIGN INVADERS AND KILLING THEM BEFORE THEY HAVE A CHANCE TO WORK. DR. BIJU CHANDU AND COLLABORATORS WILL BE TESTING A NEW BONE MARROW CELL TREATMENT FOR ALZHEIMER'S DISEASE. FIRST, THEY WILL ISOLATE WHITE BLOOD CELLS THAT ROAM FREELY IN THE EASILY-ACCESSIBLE BLOOD VESSELS. THESE CELLS WILL IN TURN BE GENETICALLY MODIFIED TO BECOME BONE MARROW CELLS AND RE-PURPOSED TO RELEASE ANTI-ALZHEIMER'S DISEASE DRUGS. THE MODIFIED CELLS ARE INJECTED BACK IN THE BLOOD STREAM, WHERE THEY MIGRATE TO THE PARTS OF THE BRAIN THAT REQUIRE TREATMENT. AFTER THIS NEW TREATMENT IS TESTED IN CELL CULTURE AND ANIMALS IN THIS PROJECT, THE RESEARCHERS MAY THEN DECIDE TO MOVE THIS TECHNIQUE INTO HUMAN CLINICAL TRIALS. NAME OF ORGANIZATION OR GOVERNMENT: INDIANA UNIVERSITY (H) PURPOSE OF GRANT OR ASSISTANCE: NATIONAL GLAUCOMA RESEARCH BY DR. BRIAN CHRISTOPHER SAMUELS ENTITLED: (G2011012) HYPOTHALAMIC CONTROL OF TRANSLAMINAR PRESSURE GRADIENTS. INVESTIGATOR'S SUMMARY: AN INCREASE IN EYE PRESSURE CAN DAMAGE THE OPTIC NERVE AND LEAD TO GLAUCOMA. HOWEVER, NEW STUDIES HAVE SHOWN THAT AN EYE PRESSURE CHANGE MAY NOT BE THE ONLY SITUATION THAT CAN CAUSE AN INCREASED RISK OF DEVELOPING GLAUCOMA. DR. BRIAN SAMUELS AND COLLEAGUES WILL STUDY HOW CERTAIN CELLS WITHIN THE BRAIN CONTROLS THE PRESSURE INSIDE BOTH THE EYE AND THE BRAIN, BECAUSE THEY BELIEVE THAT CHANGES TO THE PRESSURE IN THE BRAIN MAY BE JUST AS IMPORTANT IN GLAUCOMA. USING RAT MODELS, THEY WILL IDENTIFY THE EXACT LOCATION OF THE BRAIN CELLS THAT CONTROL SOME OF THE DAILY CHANGES IN THE EYE AND BRAIN PRESSURE. ONCE THEY LOCATE THESE BRAIN CELLS, THEY COULD BE THE TARGET FOR NEW GLAUCOMA THERAPIES. IN ADDITION, DISCOVERING HOW THE BRAIN CELLS CONTROL BOTH EYE AND BRAIN PRESSURE COULD LEAD TO NEW TREATMENTS OF OTHER DISEASES THAT AFFECT THE BRAIN AND NERVES. NAME OF ORGANIZATION OR GOVERNMENT: UNIVERSITY OF NORTH TEXAS HEALTH SCIENCE CENTER (H) PURPOSE OF GRANT OR ASSISTANCE: NATIONAL GLAUCOMA RESEARCH BY DR. WEIMING MAO ENTITLED: (G2011032) CROSSTALK OF TGF-BETA AND WNT PATHWAYS IN THE TRABECULAR MMESHWORK. INVESTIGATOR'S SUMMARY: CHANGES IN TWO NETWORKS OF PROTEINS-NAMED THE TGF-BETA AND WNT PATHWAYS-CAN PROMOTE "CLOGS" IN THE DRAINAGE SYSTEM OF THE EYE-THE TRABECULAR MESHWORK (TM). THESE CLOGS CAUSE AN INCREASE IN EYE PRESSURE AND MAY LEAD TO GLAUCOMA. DR. WEIMING MAO AND COLLEAGUES WILL FIRST SCREEN THE TGF-BETA AND WNT PATHWAYS TO IDENTIFY THE SPECIFIC PROTEINS THAT ARE INVOLVED IN CROSS-TALK BETWEEN THESE TWO NETWORKS. THEN, THEY WILL TEST WHETHER THE TM DRAIN STRUCTURE AND EYE PRESSURE CAN BE BROUGHT BACK TO NORMAL AFTER GENETICALLY INCREASING OR DECREASING THE LEVELS OF THESE CROSS-TALK PROTEINS IN CULTURED CELLS AND ANIMAL MODELS OF GLAUCOMA. IF ONE OF THE PROTEINS ENDS UP INFLUENCING EYE PRESSURE THROUGH THE TGF-BETA AND WNT PATHWAYS, THEN A DRUG COULD BE DESIGNED TO BETTER CONTROL EYE PRESSURE IN GLAUCOMA. | ||
| NAME OF ORGANIZATION OR GOVERNMENT: NORTHWESTERN UNIVERSITY (H) PURPOSE OF GRANT OR ASSISTANCE: NATIONAL GLAUCOMA RESEARCH BY DR. XIAORONG LIU ENTITLED: (G2011033) NEUROTROPHIC MECHANISMS IN OCULAR HYPERTENSION MICE. INVESTIGATOR'S SUMMARY: A GROUP OF NERVE SURVIVAL FACTORS, CALLED NEUROTROPHINS, WILL BE TESTED IN A MOUSE MODEL OF GLAUCOMA TO SEE IF THEY CAN RESCUE THE STRUCTURE AND FUNCTION OF THE OPTIC NERVE CELLS BEFORE THEIR DEATH. DR. XIAORONG LIU AND COLLEAGUES WILL USE MICE WITH HIGH EYE PRESSURE TO MIMIC THE HUMAN HIGH-TENSION GLAUCOMA IN THEIR TESTS. THEY WILL USE GENETIC TECHNIQUES TO SPECIFICALLY EXAMINE HOW TWO NEUROTROPHINS-CALLED BDNF AND NT- 3-CONTRIBUTE TO PROTECT RETINAL CELL STRUCTURE AND VISUAL BEHAVIORS IN MICE WITH HIGH EYE PRESSURE. THE RESULTS WILL THUS PROVIDE INSIGHT INTO WHETHER BDNF AND NT-3 ARE GOOD CANDIDATES FOR DRUG TARGETING TO PREVENT THE OPTIC NERVE CELL DAMAGE THAT OCCURS IN GLAUCOMA. NAME OF ORGANIZATION OR GOVERNMENT: RUSH UNIVERSITY MEDICAL CENTER (H) PURPOSE OF GRANT OR ASSISTANCE: NATIONAL GLAUCOMA RESEARCH BY DR. SHUNBIN XU ENTITLED: (G2011036) MICRORNAS IN GLAUCOMATOUS NEURODEGENERATION. INVESTIGATOR'S SUMMARY: THERE ARE RECENTLY DISCOVERED GENE-EXPRESSION CONTROLLERS-CALLED MICRORNAS-THAT PLAY IMPORTANT ROLES IN BOTH HEALTH AND DISEASE. HOWEVER, THE ROLES THAT MICRORNAS PLAY IN GLAUCOMA ARE COMPLETELY UNKNOWN. DR. SHUNBIN XU AND COLLEAGUES PLAN TO USE MICE THAT HAVE HUMAN-LIKE GLAUCOMA TO GATHER MICRORNAS FROM THE "OPTIC NERVE HEAD," A REGION OFTEN FIRST AFFECTED DURING GLAUCOMA DEVELOPMENT. BY COMPARING THE PRESENCE AND ACTIVITIES OF DIFFERENT MICRORNAS AT VARIOUS STAGES OF DISEASE IN THE OPTIC NERVE HEAD, THEY WILL DISCOVER THOSE THAT CHANGE IN CORRELATION WITH THE START AND PROGRESSION OF THE DISEASE. THESE MICRORNAS MAY BE USED AS NEW DRUG TARGETS FOR THE PREVENTION AND TREATMENT OF GLAUCOMA. NAME OF ORGANIZATION OR GOVERNMENT: UNIVERSITY OF ILLINOIS AT CHICAGO (H) PURPOSE OF GRANT OR ASSISTANCE: NATIONAL GLAUCOMA RESEARCH BY PAUL A. KNEPPER ENTITLED: (G2011047) ACTIVATION OF INNATE IMMUNE TOLL-4 RECEPTOR IN POAG. INVESTIGATOR'S SUMMARY: THE GOAL OF OUR PROJECT IS TO DETERMINE THE PROFILE OF HYALURONIC ACID, HYALURONIDASE, AND HYALURONIDASE INHIBITORS IN AQUEOUS HUMOR OF POAG AND NORMAL PATIENT POPULATIONS. HUMAN AQUEOUS HUMOR WILL BE PROVIDED FROM BOTH GLAUCOMATOUS AND NON-GLARCOMATOUS PATIENTS. GEL ELECTROPHORESIS WILL ALSO BE USED TO DETERMINE THE PROFILE OF HYALRUONIC ACID AND ITS RELATIVE SIZES IN AQUEOUS. WE WILL USE WESTERN BLOTS AND ZYMOGRAMS TO DETECT THE PRECENSE OF HYALURONIDASE AND HYALURONIDASE INHIBITORS. WE HAVE IDENTIFIED A UNIFIED SIGNALING PATHWAY BASED ON ACTIVATION OF INNATE IMMUNE SYSTEM WHICH RESULTS IN AN INFLAMMATORY CASCADE RESULTING IN POAG. WE HAVE IDENTIFIED THAT CELL TRAUMA CAUSES LOW-MOLECULAR-WEIGHT HYALURONIC ACID TO START THE PATHWAY. PREVENTION OF DEGRADATION OF HIGH-MOLECULAR-WEIGHT HYALURONIC ACID BY POTENT HYALURONIDASE INHIBITOR COULD BE NOVEL THERAPY AND THE FIRST THERAPY DIRECTLY AIMED AT THE CAUSE OF POAG. | ||
| NAME OF ORGANIZATION OR GOVERNMENT: VANDERBILT UNIVERSITY MEDICAL CENTER (H) PURPOSE OF GRANT OR ASSISTANCE: NATIONAL GLAUCOMA RESEARCH BY DR. DAVID JOHN CALKINS ENTITLED: (G2011052) MAPPING THE PROTEIN AND LIPID SIGNATURE OF GLAUCOMA. INVESTIGATOR'S SUMMARY: AGING AND ELEVATED EYE PRESSURE BOTH CONTRIBUTE TO VISION LOSS IN GLAUCOMA BY CHANGING THE ACTIVITY OF PROTEINS AND FATS IN THE EYE. DRS. DAVID JOHN CALKINS, KEVIN SCHEY, AND COLLABORATORS HAVE PREVIOUSLY DEVELOPED AN INDUCIBLE GLAUCOMA MOUSE MODEL THAT WAS FUNDED IN PART THROUGH A PREVIOUS AHAF GRANT. IN THIS MODEL, TINY STYROFOAM BEADS ARE INJECTED INTO MOUSE EYES TO BLOCK THE FLOW OF A LIQUID CALLED THE AQUEOUS HUMOR, CAUSING AN INCREASE IN EYE PRESSURE THAT THEN DAMAGES THE OPTIC NERVE AND LEADS TO GLAUCOMA. THE RESEARCHERS WILL USE A SPECIAL KIND OF DETECTION LASER AND CAMERA (CALLED MALDI MASS SPECTROMETRY IMAGING) TO CREATE A "ROAD MAP" OF THE PROTEIN AND FAT CHANGES IN THE RETINA AND BRAIN. BY GIVING THESE MICE GLAUCOMA AT VARIOUS AGES, THIS APPROACH WILL SEPARATE AGE-DEPENDENT FROM EYE-PRESSURE-DEPENDENT CHANGES. THE RESULTS WILL GIVE CLUES FOR FUTURE TREATMENTS FOR GLAUCOMA AND PERHAPS FOR OTHER EYE OR BRAIN DISEASES ASSOCIATED WITH AGING, LIKE ALZHEIMER'S DISEASE OR MACULAR DEGENERATION. HUMAN AQUEOUS HUMOR WILL BE PROVIDED FROM BOTH GLAUCOMATOUS AND NON-GLARCOMATOUS PATIENTS. GEL ELECTROPHORESIS WILL ALSO BE USED TO DETERMINE THE PROFILE OF HYALRUONIC ACID AND ITS RELATIVE SIZES IN AQUEOUS. WE WILL USE WESTERN BLOTS AND ZYMOGRAMS TO DETECT THE PRECENSE OF HYALURONIDASE AND HYALURONIDASE INHIBITORS. NAME OF ORGANIZATION OR GOVERNMENT: WASHINGTON UNIVERSITY (H) PURPOSE OF GRANT OR ASSISTANCE: MACULAR DEGENERATION RESEARCH BY DR. THOMAS A. FERGUSON ENTITLED: (M2011014) THE ROLE OF AUTOPHAGY IN AGE-RELATED EYE DISEASE. INVESTIGATOR'S SUMMARY: RETINAL PIGMENT EPITHELIAL (RPE) CELLS RECYCLE WASTE AND DELIVER NUTRIENTS TO THE LIGHT-DETECTING CELLS IN THE RETINA. EXCESSIVE BUILD-UP OF WASTE PRODUCTS, CALLED DRUSEN, HAPPENS AT THE BEGINNING OF DRY AGE-RELATED MACULAR DEGENERATION (AMD). DR. THOMAS FERGUSON AND COLLEAGUES WILL BE INVESTIGATING WHETHER MICE THAT HAVE BEEN MADE TO HAVE A FAULTY WASTE RECYCLING PROCESS-CALLED AUTOPHAGY-DEVELOP THE EYE DISEASE AMD. EYES THAT CAN'T RECYCLE ARE LIKELY TO SHOW SIGNS OF AGING, SENSITIVITY TO LIGHT AND DEVELOP BLINDNESS AT AN EARLY AGE AS A RESULT OF THE LOSS OF THIS RECYCLING. THESE RESEARCHERS HAVE ALREADY MADE MICE WITH PROBLEMS IN RPE AUTOPHAGY TO ADDRESS THEIR QUESTIONS. THEY WILL TRACK DOWN THE AMOUNT OF RECYCLING NEEDED TO KEEP EYES HEALTHY AND WHAT PROTEIN OR CHEMICAL "CULPRITS" TIP THE BALANCE TO INCREASE THE RISK OF GETTING AMD. IF A SUITABLE TARGET IN THE AUTOPHAGY PROCESS IS FOUND, THEY WILL DEVELOP A NEW THERAPY TO TREAT AMD. WE HAVE IDENTIFIED A UNIFIED SIGNALING PATHWAY BASED ON ACTIVATION OF INNATE IMMUNE SYSTEM WHICH RESULTS IN AN INFLAMMATORY CASCADE RESULTING IN POAG. WE HAVE IDENTIFIED THAT CELL TRAUMA CAUSES LOW-MOLECULAR-WEIGHT HYALURONIC ACID TO START THE PATHWAY. PREVENTION OF DEGRADATION OF HIGH-MOLECULAR-WEIGHT HYALURONIC ACID BY POTENT HYALURONIDASE INHIBITOR COULD BE NOVEL THERAPY AND THE FIRST THERAPY DIRECTLY AIMED AT THE CAUSE OF POAG. NAME OF ORGANIZATION OR GOVERNMENT: UNIVERSITY OF FLORIDA (H) PURPOSE OF GRANT OR ASSISTANCE: MACULAR DEGENERATION RESEARCH BY DR. MICHAEL E. BOULTON ENTITLED: (M2011017) PREPROGRAMMED BONE MARROW CELLS AS A SYSTEMIC THERAPY FOR DRY AMD. INVESTIGATOR'S SUMMARY: DRY AGE-RELATED MACULAR DEGENERATION (AMD) REPRESENTS 80 TO 90 PERCENT OF THE POPULATION CURRENTLY DIAGNOSED WITH AMD, YET THERE IS NO EFFECTIVE DISEASE-MODIFYING TREATMENT. RETINAL PIGMENTED EPITHELIAL (RPE) CELLS- IMPORTANT FOR WASTE RECYCLING AND DELIVERY OF NUTRIENTS TO THE LIGHT-DETECTING CELLS-ARE MYSTERIOUSLY KILLED-OFF IN DRY AMD. THEREFORE, THERE IS MUCH PROMISE IN REPLACING THE DAMAGED RPE CELLS WITH HEALTHY ONES. IN PREVIOUS STUDIES, DRS. MICHAEL BOULTON, MARIA GRANT AND COLLEAGUES MADE THE EXCITING DISCOVERY THAT CHANGING THE EXPRESSION OF ONE GENE IN ISOLATED BONE MARROW-DERIVED PLASMA CELLS (BMPCS)-A TYPE OF ADULT STEM CELL- TRANSFORMS THEM INTO RPE-LIKE CELLS. WHEN THESE CELLS ARE INJECTED BACK INTO THE BLOOD OF MICE WITH PHYSICALLY DAMAGED EYES, THEY GO TO THE RETINA, RENEW THE SINGLE-LAYER OF RPE CELLS, AND RE-ESTABLISH NORMAL VISION. DRS. BOULTON AND GRANT PLAN TO TEST THIS RPE-REPLACEMENT TREATMENT IN MICE WITH AMD. IF THIS TREATMENT IS PROVEN TO BE EFFECTIVE IN THESE MICE, IT COULD LEAD TO HUMAN CLINICAL TRIALS AND TREATMENT POSSIBILITIES WITHOUT THE NEED FOR INVASIVE EYE SURGERY OR INJECTIONS. | ||
| NAME OF ORGANIZATION OR GOVERNMENT: UNIVERSITY OF IOWA (H) PURPOSE OF GRANT OR ASSISTANCE: MACULAR DEGENERATION RESEARCH BY DR. VINIT B. MAHAJAN ENTITLED: (M2011021) CYTOKINE SIGNALING IN THE FOVEAL CHOROID IN AMD. INVESTIGATOR'S SUMMARY: IN NEOVASCULAR STAGES OF AGE-RELATED MACULAR DEGENERATION (WET AMD), LEAKY BLOOD VESSELS GROW INTO THE RETINA AND DAMAGE VISION. THESE BLOOD VESSELS ARE COAXED INTO THE RETINA BY A COMMUNICATION "CROSS-TALK" THAT MAY EXIST BETWEEN HUNDREDS OF PROTEINS AND CHEMICALS. DRS. VINIT MAHAJAN, JESSICA SKEIE AND COLLABORATORS WILL USE SPECIAL METHODS TO IDENTIFY THESE PROTEINS AND CHEMICALS FROM RETINA BLOOD VESSELS THAT WERE SURGICALLY REMOVED FROM THE EYES OF HUMAN DONORS WHO WERE EITHER HEALTHY OR WHO HAD BEEN DIAGNOSED WITH AMD. COMPARISON OF THE PROFILE BETWEEN HEALTHY AND DISEASED EYES SHOULD PRESENT A NUMBER OF CROSS-TALK CANDIDATES. THE IDENTITIES OF THESE CANDIDATES MAY THEN INSPIRE THE DESIGN OF COMBINATION DRUGS TO TREAT AMD BEFORE THE INVASION OF LEAKY BLOOD VESSELS PROMOTES RAPID LOSS OF VISION. THE METHODS WE WILL EMPLOY FOCUS ON ISOLATING A TARGET FOR POTENTIAL TREATMENT OF THE DISEASE POSSIBLY LINKED TO HYALURONIDASE INHIBITORS. THIS WOULD BE THE FIRST TIME THE UNDERLYING CAUSES OF POAG WOULD BE DIRECTLY TREAT AN UNDERLYING MECHANISM/CAUSE RATHER THAN MANAGING THE SYMPTOMS OF THE DISEASE. NAME OF ORGANIZATION OR GOVERNMENT: VANDERBILT UNIVERSITY MEDICAL CENTER (H) PURPOSE OF GRANT OR ASSISTANCE: MACULAR DEGENERATION RESEARCH BY DR. JONATHAN L. HAINES ENTITLED: (M2011046) THE GENETICS OF AMD IN AFRICAN-AMERICANS. INVESTIGATOR'S SUMMARY: MANY OF THE RISK GENES FOR AGE-RELATED MACULAR DEGENERATION (AMD) WERE DISCOVERED BY LOOKING AT DNA SAMPLES FROM CAUCASIAN (WHITE WITH EUROPEAN ANCESTRY) SUBJECTS. DRS. JONATHAN HAINES, ANITA AGARWAL, AND COLLABORATORS WILL LOOK FOR NEW RISK GENES BY COMPARING THE "SPELLING" OF THE DNA OF AFRICAN-AMERICANS WITH AMD TO THE DNA FROM UNRELATED AFRICAN-AMERICANS WITHOUT AMD. IF THIS GROUP DISCOVERS NEW RISK GENES, THEN IT MAY IMPLY THAT AMD STARTS AND/OR PROGRESSES IN AFRICAN-AMERICANS IN A DIFFERENT WAY THAN IT DOES FOR OTHER ETHNICITIES. HOWEVER, THE IDENTITY OF THE GENES FROM THIS STUDY MAY GIVE IDEAS FOR NEW TYPES OF PREVENTIONS AND TREATMENTS FOR EVERYONE DIAGNOSED WITH AMD. NAME OF ORGANIZATION OR GOVERNMENT: UNIVERSITY OF PENNSYLVANIA (H) PURPOSE OF GRANT OR ASSISTANCE: MACULAR DEGENERATION RESEARCH BY DR. WENCHAO SONG ENTITLED: (M2011051) COMPLEMENT ACTIVATION IN RPE FUNCTION AND AMD PATHOGENESIS. INVESTIGATOR'S SUMMARY: THERE IS NO EFFECTIVE TREATMENT AVAILABLE FOR THE EARLY OR DRY TYPE OF AGE-RELATED MACULAR DEGENERATION (AMD). ONE IDEA FOR FUTURE TREATMENTS SPRUNG FROM THE DISCOVERY THAT A GROUP OF BLOOD PROTEINS THAT HELPS THE BODY TO ATTACK "FOREIGN INVADERS", CALLED THE COMPLEMENT SYSTEM, MAY INITIATE DRY AMD. DRS. WENCHAO SONG, IMRAN MOHAMMED, AND COLLABORATORS WILL CREATE MICE THAT HAVE HAD THE GENETIC "BRAKE" REMOVED FROM THE COMPLEMENT SYSTEM. THEY SUSPECT THAT THIS WILL CAUSE SEVERE INFLAMMATION AND DAMAGE THE RETINA IN A WAY THAT WILL RESEMBLE DRY AMD. IF THIS IS THE CASE, THEN THESE MICE COULD THEN BE USED AS A MODEL FOR TESTING NEW PREVENTIONS AND TREATMENTS FOR DRY AMD. | ||
| NAME OF ORGANIZATION OR GOVERNMENT: UNIVERSITY OF NOTRE DAME (H) PURPOSE OF GRANT OR ASSISTANCE: MACULAR DEGENERATION RESEARCH BY DR. DAVID RUSSELL HYDE ENTITLED: (M2011053) GENERATING A ZEBRAFISH MODEL TO STUDY AMD. INVESTIGATOR'S SUMMARY: IN AGE-RELATED MACULAR DEGENERATION (AMD), THE RETINAL PIGMENT EPITHELIUM (RPE) CELLS, WHICH ARE LOCATED BEHIND THE RETINA AND ARE ESSENTIAL TO KEEP THE LIGHT-DETECTING ROD AND CONE PHOTORECEPTOR CELLS ALIVE, ARE DAMAGED AND DIE. HOWEVER, IT IS UNCLEAR IF THE RPE CELL DEATH IS THE PRIMARY CAUSE OF AMD OR A SECONDARY EFFECT. TO ADDRESS THIS QUESTION, DR. DAVID HYDE AND COLLABORATORS WILL GENERATE A ZEBRAFISH MODEL OF AMD, WHERE A NUMBER OF THE RETINAL RPE CELLS DIE. THEY WILL THEN TEST WHETHER THE DEATH OF RPE CELLS IS SUFFICIENT TO CAUSE TWO HALLMARKS OF ADVANCED AMD-THE DEATH OF THE ADJACENT PHOTORECEPTOR CELLS AND THE APPEARANCE OF TEARS IN THE BLOOD-RETINA BARRIER (CALLED BRUCH'S MEMBRANE). SINCE ZEBRAFISH HAVE A NATURAL ABILITY TO REGENERATE A NUMBER OF BODY PARTS, INCLUDING RETINAL NEURONS, THESE RESEARCHERS WILL ALSO DETERMINE IF THE RPE CELL LAYER CAN SPONTANEOUSLY REPAIR ITSELF AND, IF SO, DETERMINE THE ORIGIN OF THESE NEW RPE CELLS. STUDYING HOW THE ZEBRAFISH EYE CAN REPAIR ITS RPE AND RETINA WILL GIVE CLUES FOR FUTURE RPE CELL REPLACEMENT THERAPIES FOR PEOPLE WITH AMD. NAME OF ORGANIZATION OR GOVERNMENT: UNIVERSITY OF CALIFORNIA (H) PURPOSE OF GRANT OR ASSISTANCE: MACULAR DEGENERATION RESEARCH BY DR. MONTE JOEL RADEKE ENTITLED: (M2011064) THE EPIGENETICS OF RPE AGING. INVESTIGATOR'S SUMMARY: CHANGES IN RETINAL PIGMENT EPITHELIUM (RPE) CELLS DUE TO AGE AND ENVIRONMENTAL STRESS MAY BE ASSOCIATED WITH THE ONSET AND PROGRESSION OF AGE-RELATED MACULAR DEGENERATION (AMD). THESE PRESSURES CAN CAUSE CHANGES IN GENE ACTIVITY AND CELL HEALTH THROUGH A PROCESS CALLED EPIGENETICS. THIS PROCESS, WHERE GENES ARE EITHER ACTIVATED OR INACTIVATED BY THE ADDITION OF SPECIALIZED CHEMICAL GROUPS TO THE DNA, OCCURS NATURALLY DURING DEVELOPMENT AND PLAYS A KEY ROLE IN THE DETERMINATION OF CELLULAR FUNCTION. DR. MONTE RADEKE AND COLLABORATORS WILL DETERMINE IF CHANGES TO THE ORIGINAL EPIGENETIC PROGRAMMING OF RPE CAN HELP EXPLAIN THE DAMAGE OBSERVED IN AMD. THEY WILL USE A STATE-OF-THE-ART GLOBAL ANALYTICAL METHOD TO IDENTIFY GENES IN BOTH CULTURED RPE CELLS AND HUMAN DONOR RPE WHOSE EPIGENETIC PROGRAMMING BECOMES ALTERED WITH INCREASING AGE. IF AGING DOES CAUSE EPIGENETIC CHANGES TO GENES IN RPE CELLS, THIS RESEARCH COULD LEAD TO NEW TREATMENTS FOR AMD. NAME OF ORGANIZATION OR GOVERNMENT: THE SCHEPENS EYE RESEARCH INSTITUTE (H) PURPOSE OF GRANT OR ASSISTANCE: MACULAR DEGENERATION RESEARCH BY DR. BRUCE RICHARD KSANDER ENTITLED: (M2011069) NALP3 ACTIVATION TRIGGERS DEVELOPMENT OF AMD. INVESTIGATOR'S SUMMARY: RETINAL PIGMENT EPITHELIAL (RPE) CELLS SUPPORT THE LIGHT-DETECTING PHOTORECEPTOR CELLS BY RECYCLING AND REMOVING WASTE PRODUCTS. IF RPE CELLS ARE UNHEALTHY, THEN THIS WASTE CAN BUILD-UP AND DAMAGE THE RETINA. INFLAMMATION IS AN IMPORTANT PART OF THE AMD DISEASE PROCESS, AND RPE CELLS HAVE THEIR OWN SPECIAL TYPE OF PROTEINS-CALLED THE "INFLAMMASOME"-TO MONITOR AND DETERMINE IF THE RPE ARE WORKING PROPERLY. IN FACT, IF THIS RPE WASTE RECYCLING AND REMOVAL PROCESS ISN'T FUNCTIONING PROPERLY, THE INFLAMMASOME SENDS OUT SIGNALS FOR THE IMMUNE SYSTEM TO SWOOP IN AND KILL THE MALFUNCTIONING RPE CELLS. DR. KSANDER AND COLLABORATORS HAVE DISCOVERED A NEW RISK GENE-CALLED NALP3-THAT IS EXPRESSED IN RETINAL CELLS AND IS SUSPECTED TO BE IMPORTANT IN TRIGGERING AMD VIA THE INFLAMMASOME. THESE RESEARCHERS WILL DETERMINE WHETHER THIS GENE IS INVOLVED IN THE DEATH OF RPE CELLS AND, IF SO, WHETHER IT WILL BE A NEW TARGET FOR TREATMENT OF AMD. | ||
| NAME OF ORGANIZATION OR GOVERNMENT: JOHNS HOPKINS UNIVERSITY (H) PURPOSE OF GRANT OR ASSISTANCE: MACULAR DEGENERATION RESEARCH BY DR. DONALD J. ZACK ENTITLED: (M2011077) HIGH CONTENT SCREEN FOR RPE CELL PROTECTIVE COMPOUNDS. INVESTIGATOR'S SUMMARY: RETINAL PIGMENT EPITHELIAL (RPE) CELLS ARE ESSENTIAL FOR NORMAL RETINAL FUNCTION, BEING RESPONSIBLE FOR MAINTAINING THE DELICATE BALANCE BETWEEN WASTE REMOVAL AND NUTRIENT DELIVERY THAT IS NECESSARY TO SUSTAIN THE HEALTH AND FUNCTION OF PHOTORECEPTORS. DYSFUNCTION AND DEATH OF RPE CELLS PLAYS AN IMPORTANT ROLE IN THE ETIOLOGY OF AGE-RELATED MACULAR DEGENERATION (AMD). THERE ARE NO KNOWN DRUGS THAT EFFECTIVELY PREVENT THIS AMD-ASSOCIATED RPE DYSFUNCTION AND CELL DEATH. DRS. DONALD ZACK, CINDY BERLINICKE, AND COLLEAGUES PROPOSE TO IDENTIFY SMALL MOLECULES, POTENTIAL DRUGS THAT CAN PROMOTE THE HEALTH AND SURVIVAL OF RPE CELLS. THESE RESEARCHERS WILL LOOK FOR THESE PROTECTIVE SMALL MOLECULE DRUGS BY SCREENING THOUSANDS OF CANDIDATES WITH AN AUTOMATED, ROBOTIC MICROSCOPE SYSTEM. THE IDENTITY OF EFFECTIVE CANDIDATES COULD GIVE CLUES TO UNDERSTANDING WHAT CAUSES AMD AND ALSO COULD PROVIDE CANDIDATE MOLECULES THAT COULD BE DEVELOPED INTO NOVEL DRUG TREATMENTS FOR AMD. NAME OF ORGANIZATION OR GOVERNMENT: UNIVERSITY OF MIAMI MILLER SCHOOL OF MEDICINE (H) PURPOSE OF GRANT OR ASSISTANCE: MACULAR DEGENERATION RESEARCH BY DR. MARGARET A PERICAK-VANCE ENTITLED: (M2011078) WHOLE EXOME SEQUENCING IN AGE-RELATED MACULAR DEGENERATION. INVESTIGATOR'S SUMMARY: THERE ARE MANY GENES THAT ARE LINKED TO THE RISK OF DEVELOPING AGE-RELATED MACULAR DEGENERATION (AMD), BUT THERE IS STILL ROOM TO DISCOVER MORE. IN THIS PROPOSED PROJECT, DRS. MARGARET PERICAK-VANCE, WILLIAM SCOTT, AND COLLEAGUES WILL STUDY THE DNA OF TWO GROUPS OF PEOPLE THAT SHOULD INCREASE THEIR CHANCES OF FINDING NEW RISK GENES. ONE GROUP HAS ADVANCED AMD DESPITE NOT HAVING ANY OF THE KNOWN RISK VARIANTS IN THE GENES ASSOCIATED WITH AMD RISK (INCLUDING CFH AND ARMS2) AND THE OTHER GROUP DOESN'T HAVE AMD DESPITE HAVING KNOWN RISK VARIANTS IN THESE GENES. THESE RESEARCHERS WILL USE NEW GENE READING TECHNIQUES TO LOOK AT THE "WHOLE EXOME" OR THE DNA SPELLING OF THE MOST-USED BOOKS IN A PERSON'S GENETIC LIBRARY. CATALOGUING THE GENE CHANGES IN BOTH SETS OF PEOPLE WITH AMD WILL LEAD TO BETTER UNDERSTANDING OF HOW THIS DISEASE STARTS AND GIVE CLUES TO FUTURE PREVENTIONS AND TREATMENTS. |
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