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Kevin P. High, MD, MS Professor of Medicine and Translational Science Chief, Section on Infectious Diseases Interim Chair, Department of Internal Medicine. HIV and Aging: Accentuated Disease and Accelerated Aging KY AETC Annual Meeting March 29, 2014. Outline.
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Kevin P. High, MD, MS Professor of Medicine and Translational Science Chief, Section on Infectious Diseases Interim Chair, Department of Internal Medicine HIV and Aging:Accentuated Disease and Accelerated AgingKY AETC Annual MeetingMarch 29, 2014
Outline • Why study aging? – unparalleled “bang for the buck” • Intersection of the HIV Epidemic with Aging Research • Does HIV accelerate or accentuate aging? • Does it matter? • Mechanisms that may lead to premature multi-morbidity and functional decline in HIV • Priorities in HIV/Aging Research
Non-aging survival curve for a wild animal • Why? • Predation • Disease • Habitat • Starvation • Accidental death • Risk of death same every year (50:50) • Animals do not appear to show signs of aging • Don’t live long enough in wild Slide courtesy of Neal Fedarko NSF JHMI
As humans have increasingly controlled their environment, their life expectancy has dramatically (“Rectangularization” of the survival curve) Slide courtesy of Neal Fedarko NSF JHMI
“Rectangularization” of the Survival Curve: Median survival has about doubled Slide courtesy of Neal Fedarko NSF JHMI
Miller, R. MillbankQuarterly Volume 80, Issue 1 (pages 155–174) 2002
“Rectangularization” of the Survival Curve: Required for median survival to triple NSF JHMI
“It’s not the years, Honey, it’s the mileage . . . . .” Indiana Jones “You’re looking old Indy . . .” Marian
JK • 1996 – 49 yo man initial Dx of HIV; no serious illness • With initiation of ART, BMI went from 22 29 • 1997-99 – one episode of bacterial pneumonia; some depression, occasional herpes keratitis • 2002 – hyperlipidemia • 2003 – diabetes mellitus diagnosed • 2004 – LE pain c/w neuropathy • 2005 – BPH severe enough to require TURP
JK • 2006 – severe LLE pain popliteal aneurysm requiring surgical repair • 2007 – constipation and rectal discharge sigmoidoscopy rectal carcinoma surgery/XRT • 2009 – disabling sweats/hot flashes venlafaxine, testosterone • 2012 – thoracic vertebral compression fracture
JK • Treated with multiple ART’s over the years • zidovudine, didanosine, stavudine, abacavir, lamivudine, tenofovir, nevirapine, nelfinavir, ritonavir, fosamprenavir – VL nearly always undetectable • At least 7 morbidities developed from ages 52-64 • Diabetes, HTN, Hyperlipidemia, BPH, peripheral vascular disease, rectal carcinoma, fragility fracture • Became very depressed, lost his job, social isolation – complained of severe fatigue from day 1
Eras of the HIV Epidemic Chu and Selwyn, J Urban Health. 2011 Mar 1. [Epub ahead of print]
% of People Living with HIV over age 50 years Center for Quality Management in Public Health. The State of Care for Veterans with HIV/AIDS. Palo Alto, CA, USA2009 and CDC. Centers for Disease Control and Prevention. HIV Surveillance Report, vol. 21. http://www.cdc.gov/hiv/topics/surveillance/resources/reports/#surveillance; Published February 2011. Accessed August 2011.2009.
AIDS and even most non-AIDS events (CVD, liver) have slowly declined, even during the late ART era
1 in 8 HIV-infected in Africa are over age of 50 Rates of co-morbidities higher in Botswana than US Community-based chronic care delivery models will be needed to address changing needs
HIV and Aginghttp://www.frontiersla.com/Blog/FrontierBlog/blogentry.aspx?BlogEntryID=10304243%20&%20mid=50
Concern in the popular press that HIV “accelerates” aging 59 year old man less “robust” than father HIV associated with multiple morbidities of aging France D. Another Kind of AIDS Crisis. New York. Nov 1, 2009 Gross G. AIDS Patients Face Downside of Living Longer. NY Times. Jan 6, 2008
“Accelerated” Coronary Artery Aging in HIV infected patients > 40y (avg. HAART, 11 yrs) Avg. vascular age 15 yrs > chronologic age (based on MESA gender/ethnicity-specific curves) Guaraldi G, et al. ClinInfDis 2009;49:1756-62
The risk for developing many morbidities remains higher than expected (~1.5 to 2.0 fold) even in those with “well-controlled” HIV Cardiovascular disease [1-3] Cancer (non-AIDS) [4] Bone fractures / osteoporosis [5,6] Liver disease [7] Kidney disease [8] Cognitive decline [9] Frailty (80% more common) [10] 1. Klein D, et al. J Acquir Immune DeficSyndr. 2002;30:471-477. 2; Hsue P, et al. Circulation. 2004;109:316-319. 3. Grinspoon SK, et al. Circulation. 2008;118:198-210. 4. Patel P, et al. Ann Int Med, 2008;148:728-736. 5. Triant V, et al. J ClinEndocrinolMetab. 2008;93:3499-3504. 6. Arnsten JH, et al. AIDS. 2007 ;21:617-623. 7. Odden MC, et al. Arch Intern Med. 2007;167:2213-2219. 8. Choi A, et al. AIDS, 2009;23(16):2143-49. 9. McCutchan JA, et a. AIDS. 2007 ;21:1109-1117. 10. Desquilbet L, et al. J Gerontol A BiolSci Med Sci. 2007;62:1279-1286; … Also reviewed in Hunt, Curr HIV/AIDS Reports, (2012) 9:139–147.
Emerging Comorbid Diseases in HIV Age is a major risk factor for ALL of these co-morbidities
Age at Onset of Cancer AIDS Patients and Age Matched Uninfected Individuals Shiels MS. Ann Intern Med 2010:153:452-460.
HIV may not necessarily “accelerate” disease onsetHIV Increases risk of MI, ESRD and AIDS-associated cancer, but events occur at ~ same age (VACS cohort data) Althoff, et al, Abstract 59; Petoumenos, et al. Abstract 61
Specific morbidities have different patterns of “aging” Possibly Accelerated Accentuation Accentuation Little Change Accentuation
Swiss Cohort NB: most patients on 3 ARVs in addition to these medications, poly- pharmacy is the norm at 50 years. Hasse B. et al. CID 2011 53:1130-1139
Obesity & Multi-morbidity in the 1917 clinic • 45% overweight or obese BEFORE initiating ART • “Metabolic” cluster (HTN, gout, DM, CKD) • “Behavioral” cluster (dyslipidemia, mood d/o’s, COPD, chronic ulcer dz, cardiac dz, OA, sleep apnea) • Substance Abuse cluster (Hep C, ETOH, substance abuse, tobacco abuse)
HTN, Hyperlipidemia, prior MI HTN, Hyperlipidemia, prior MI
Many definitions of frailty • Fried Frailty Phenotype (FFP) • Slowness, weakness, shrinking, inactivity, exhaustion) • 1-2 “pre-frail”, 3+ frail • Rockwood • Accumulated deficits/decreased reserve • Count number of conditions/lab abnormalities • Short Physical Performance Battery • Walking speed, chair stand, balance test
Gait Speed predicts survival – even after fully adjusting for co-morbidity
Gait Speed predicts survival – even after fully adjusting for co-morbidity
Pre-HAART Frailty and Persistence of Frailty Predict Survival
Measuring Functional Impairment in PLWHErlandson, et al. HIV Clin Trials. 2012 Nov-Dec;13(6):324-34 • 359 participants (85% male, mean age 52 years, • mean CD4+ lymphocyte count 551 cells/µL) who were evaluated. • 3 - 8% low functioning • 31% -51% were moderate, and • 42% - 62% were high function. • FFP, SPPB, and 400-m walk test had moderate agreement for functional classification (61%-64%; κ = 0.34-0.41).
Clinical Risk Factors for Functional Impairment Erlandson, et al. HIV Clin Trials. 2012 Nov-Dec;13(6):324-34 • Across instruments, the following NON-HIV RELATED risk factors were associated with lower function: • arthritis (OR ≯ 6.5; P < .02) • lower reported physical activity (OR ≯ 5.5; P ≤ .005) • debilitating pain (OR ≯ 5.4; P < .008) • no current employment (OR ≯ 4.2; P < .02) • more comorbidities (OR ≯ 3.6; P ≤ .005) • more non-antiretroviral therapy medications (OR ≯ 3.5; P ≤ .01) • psychiatric disease (OR ≯3.1; P < .03) • neurologic disease (OR ≯ 2.6; P < .05)
Clinical Risk Factors for Functional Impairment Erlandson, et al. HIV Clin Trials. 2012 Nov-Dec;13(6):324-34 • Across instruments, the following HIV-related risk factors were associated with lower function: • Current CD4 <200 cells/µL (P = .04); • ALL other HIV-related characteristics were not significantly different (P > .05) on any instrument
Lean mass and risk of low function P < 0.05 for all measures
Fat mass and risk of low function P > 0.2 for all measures
In a separate study with CT imaging frailty associated with intermuscular fat
Bone density and risk of low function P = 0.028 P = 0.022 P = 0.093
Potential inter-related pathways of aging with HIV leading to functional decline and frailty