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        <Description>Research Fees</Description>
        <Total>2435735</Total>
        <ProgramServices>2435735</ProgramServices>
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      <OtherExpenses>
        <Description>Training and Recruiting</Description>
        <Total>4579</Total>
        <ProgramServices>4005</ProgramServices>
        <ManagementAndGeneral>488</ManagementAndGeneral>
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      <OtherExpenses>
        <Description>Community Awareness</Description>
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        <ProgramServices>6599</ProgramServices>
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        <Fundraising>142</Fundraising>
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      <AllOtherExpenses>
        <Total>0</Total>
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      <TotalFunctionalExpenses>
        <Total>4076226</Total>
        <ProgramServices>3876693</ProgramServices>
        <ManagementAndGeneral>169729</ManagementAndGeneral>
        <Fundraising>29804</Fundraising>
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      <CashNonInterestBearing>
        <BOY>184492</BOY>
        <EOY>412056</EOY>
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      <SavingsAndTempCashInvestments>
        <BOY>655340</BOY>
        <EOY>1161028</EOY>
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      <AccountsReceivable>
        <BOY>12319</BOY>
        <EOY>58610</EOY>
      </AccountsReceivable>
      <LandBuildingsEquipmentBasis>353825</LandBuildingsEquipmentBasis>
      <LandBldgEquipmentAccumDeprec>265485</LandBldgEquipmentAccumDeprec>
      <LandBuildingsEquipmentBasisNet>
        <BOY>107769</BOY>
        <EOY>88340</EOY>
      </LandBuildingsEquipmentBasisNet>
      <OtherAssetsTotal>
        <EOY>18</EOY>
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      <TotalAssets>
        <BOY>959920</BOY>
        <EOY>1720052</EOY>
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      <AccountsPayableAccruedExpenses>
        <BOY>299705</BOY>
        <EOY>184288</EOY>
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      <UnsecuredNotesLoansPayable>
        <BOY>325393</BOY>
      </UnsecuredNotesLoansPayable>
      <OtherLiabilities>
        <EOY>255</EOY>
      </OtherLiabilities>
      <TotalLiabilities>
        <BOY>625098</BOY>
        <EOY>184543</EOY>
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      <FollowSFAS117>X</FollowSFAS117>
      <UnrestrictedNetAssets>
        <BOY>327894</BOY>
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      <TemporarilyRestrictedNetAssets>
        <BOY>6928</BOY>
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      <TotalNetAssetsFundBalances>
        <BOY>334822</BOY>
        <EOY>1535509</EOY>
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      <TotalLiabNetAssetsFundBalances>
        <BOY>959920</BOY>
        <EOY>1720052</EOY>
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      <ReconcilationRevenueExpenses>1200687</ReconcilationRevenueExpenses>
      <MethodOfAccountingAccrual>X</MethodOfAccountingAccrual>
      <AccountantCompileOrReview>false</AccountantCompileOrReview>
      <FSAudited>true</FSAudited>
      <AuditCommittee>true</AuditCommittee>
      <FinancialStatementSeparate>X</FinancialStatementSeparate>
      <FederalGrantAuditRequired>false</FederalGrantAuditRequired>
    </IRS990>
    <IRS990ScheduleA documentId="990A" softwareId="10000149" softwareVersion="2010.2.15">
      <MedicalResearchOrg170b1Aiii>X</MedicalResearchOrg170b1Aiii>
      <HospitalNameAndAddress>
        <Name>
          <BusinessNameLine1>Univ of N Texas Health</BusinessNameLine1>
        </Name>
        <City>Ft Worth</City>
        <State>TX</State>
      </HospitalNameAndAddress>
      <PublicSupportPertcentage170>0.00000</PublicSupportPertcentage170>
      <PublicSupportPercentage509>0.00000</PublicSupportPercentage509>
      <InvestmentIncomePercentage>0.00000</InvestmentIncomePercentage>
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      <ContributorInfo>
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        <ContributorNameBusiness>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
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        <ContributorAddressUS>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorAddressUS>
        <AggregateContributions>RESTRICTED</AggregateContributions>
      </ContributorInfo>
    </IRS990ScheduleB>
    <IRS990ScheduleD documentId="990D" softwareId="10000149" softwareVersion="2010.2.15">
      <LeaseholdImprovements>
        <OtherCostOrOtherBasis>1200</OtherCostOrOtherBasis>
        <Depreciation>1200</Depreciation>
      </LeaseholdImprovements>
      <Equipment>
        <OtherCostOrOtherBasis>319625</OtherCostOrOtherBasis>
        <Depreciation>231285</Depreciation>
        <BookValue>88340</BookValue>
      </Equipment>
      <OtherLandBuildings>
        <OtherCostOrOtherBasis>33000</OtherCostOrOtherBasis>
        <Depreciation>33000</Depreciation>
      </OtherLandBuildings>
      <TotalOfBookValueLandBuildings>88340</TotalOfBookValueLandBuildings>
      <OtherLiabilities>
        <Description>DEFERRED RENT</Description>
        <Amount>255</Amount>
      </OtherLiabilities>
      <TotalOfAmounts>255</TotalOfAmounts>
      <TotalRevenue>5276913</TotalRevenue>
      <TotalExpenses>4076226</TotalExpenses>
      <ExcessOrDeficitForYear>1200687</ExcessOrDeficitForYear>
      <ExcessOrDeficitPerFS>1200687</ExcessOrDeficitPerFS>
      <TotRevenueEtcAuditedFinclStmt>5276913</TotRevenueEtcAuditedFinclStmt>
      <RevenueSubtotal>5276913</RevenueSubtotal>
      <TotalRevenuePerForm990>5276913</TotalRevenuePerForm990>
      <TotExpensesEtcAuditedFinclStmt>4076227</TotExpensesEtcAuditedFinclStmt>
      <OtherExpensesIncluded>1</OtherExpensesIncluded>
      <ExpensesNotRptdF990>1</ExpensesNotRptdF990>
      <ExpensesSubtotal>4076226</ExpensesSubtotal>
      <TotalExpensesPerForm990>4076226</TotalExpensesPerForm990>
      <Form990ScheduleDPartXIV>
        <Identifier>XII</Identifier>
        <ReturnReference>2d</ReturnReference>
        <Explanation>ROUNDING DIFFERENCE</Explanation>
      </Form990ScheduleDPartXIV>
    </IRS990ScheduleD>
    <IRS990ScheduleJ documentId="990J" softwareId="10000149" softwareVersion="2010.2.15">
      <SubstantiationRequired>true</SubstantiationRequired>
      <Form990OfOtherOrganizations>X</Form990OfOtherOrganizations>
      <WrittenEmploymentContract>X</WrittenEmploymentContract>
      <BoardOrCommitteeApproval>X</BoardOrCommitteeApproval>
      <SeverancePayment>false</SeverancePayment>
      <SupplementalNonqualRetirePlan>false</SupplementalNonqualRetirePlan>
      <EquityBasedCompArrangement>false</EquityBasedCompArrangement>
      <CompBasedOnRevenueOfFilingOrg>false</CompBasedOnRevenueOfFilingOrg>
      <CompBasedOnRevenueRelatedOrgs>false</CompBasedOnRevenueRelatedOrgs>
      <CompBasedNetEarningsFilingOrg>false</CompBasedNetEarningsFilingOrg>
      <CompBasedNetEarningsRelateOrgs>false</CompBasedNetEarningsRelateOrgs>
      <AnyNonFixedPayments>false</AnyNonFixedPayments>
      <InitialContractException>false</InitialContractException>
      <Form990ScheduleJPartII>
        <NamePerson>S Mitchell Harman</NamePerson>
        <BaseCompensationFilingOrg>227334</BaseCompensationFilingOrg>
        <DeferredCompFilingOrg>1312</DeferredCompFilingOrg>
        <NontaxableBenefitsFilingOrg>1644</NontaxableBenefitsFilingOrg>
        <TotalCompensationFilingOrg>230290</TotalCompensationFilingOrg>
      </Form990ScheduleJPartII>
      <Form990ScheduleJPartII>
        <NamePerson>Robert N Butler</NamePerson>
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      <Form990ScheduleJPartII>
        <NamePerson>L Ben Lytle</NamePerson>
      </Form990ScheduleJPartII>
      <Form990ScheduleJPartII>
        <NamePerson>Panayiotis Tsitouras MD</NamePerson>
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    <IRS990ScheduleO documentId="990O" softwareId="10000149" softwareVersion="2010.2.15">
      <GeneralExplanation>
        <Identifier>Form 990 Part VI</Identifier>
        <ReturnReference>11b</ReturnReference>
        <Explanation>The treasurer of the organization distributes a PDF copy of the 990 to all board members for review and comment prior to the return being filed.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990 Part V</Identifier>
        <ReturnReference>12c</ReturnReference>
        <Explanation>At each board and committee meeting, if there is a discussion of selecting or engaging a vendor or service provider, all in attendance are asked to recuse themselves from this discussion if there could be a perceived conflict. Annually, the organization reviews and discusses the conflict of interest policy and requests that each board member list and acknowledge any known conflicts.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990 Part VI</Identifier>
        <ReturnReference>15</ReturnReference>
        <Explanation>The executive committee reviews the compensation for all officers and key employees by comparing their compensation to the compensation of individuals in like positions in comparable organizations using forms 990, compensation studies, and other available data. The committee then approves any changes in compensation based on this information.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990 Part VI</Identifier>
        <ReturnReference>19</ReturnReference>
        <Explanation>The organization will provide in a timely manner, copies of all governing documents including its conflict of interest policies and financial statements when requested in writing or in person.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990 Part III</Identifier>
        <ReturnReference>4a</ReturnReference>
        <Explanation>KLRI continues to conduct research programs including TheTestosterone Effects on Atherosclerosis in Aging Men and Systemic and Localized Stress Resilience in Aging, Effects of Physical Fitness. A pilot study was completed on The Effects of Saturated Fatty Acids on Insulin Resistance, Endothelial Dysfunction and Systemic Inflammation. Our largest study, the Kronos Early Estrogen Prevention Study was fully enrolled with 728 subjects randomized at nine centers as of 2008. There are still 500 subjects who are on 48 month protocol. We continue to project a stop date of Feb. 28, 2012, by which time we should have more than the required 450 completers. KLRI published six papers and two abstracts in 2010.KLRI hosted three Progress in Longevity Medicine Seminar Series.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990 Part III</Identifier>
        <ReturnReference>4b</ReturnReference>
        <Explanation>In addition to research, KLRI provides education to the scientific and lay communities. In 2010 this was done through seminars with world renowned speakers in key areas of aging research, publishing the quarterly Longevity Kronicle and EKronicle, Community education programs, and our websites at www.kronosinstitute.org and www.keepstudy.org received more than 930,000 views.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Form 990 Part V</Identifier>
        <ReturnReference>2a</ReturnReference>
        <Explanation>Kronos utilizes a professional employment organization.</Explanation>
      </GeneralExplanation>
    </IRS990ScheduleO>
  </ReturnData>
</Return>