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Gender and Race/Ethnicity Differences in Dyslipidemia among HIV-infected Patients Participating in the Fat Redistribution and Metabolic Change Cohort Study
David Wohl*1, J Currier2, R Scherzer3, D Lee4, M Simberkoff5, P Tien3, and C Grunfeld3
1Univ of North Carolina at Chapel Hill, US; 2David Geffen Sch of Med, Univ of California, Los Angeles Med Ctr, US; 3VAMC, San Francisco, CA, US; 4Univ of California, San Diego, US; and 5VAMC-New York Harbor Hlthcare System, New York, US
Background: Dyslipidemia has been associated with ART and chronic HIV
infection. We evaluated the prevalence of dyslipidemia
in the Fat Redistribution and Metabolic Change (FRAM) cohort and identified
HIV- and sex-specific host risk factors.
Methods: FRAM is a
cross-sectional study of HIV+ patients in the United States.
Whole-body magnetic resonance imaging (MRI), anthropometrics, and fasting triglycerides
(TG), total cholesterol (TC), LDL (direct),
and HDL were performed. Factors
significantly associated with abnormal lipids were identified using
multivariable linear regression.
Results: We enrolled 425 men
(241 Caucasian, 130 African American [AA], 353 on ART) and 183 women (59 Caucasian,
102 AA, 131 on ART). Among men, 23% had a TG >400 mg/dL
or on therapy for
TG, 21% had LDL >160 mg/dL or on therapy for LDL, and 39% had HDL <35 mg/dL or on fibrate or niacin. Independent risks for higher TG levels
were
visceral adipose tissue, ¯ leg subcutaneous adipose tissue, AIDS
diagnosis,
CD4 and use of abacavir (ABC), stavudine
(d4T), or full-dose ritonavir (RTV). AA race was
associated with ¯
TG. For LDL, alcohol use and CD4
were associated with higher levels, while HIV viral load, dideoxycytidine (ddC), and being
Hispanic were with lower levels. HDL decreased with visceral adipose tissue, HIV viral
load and indinavir (IDV) but increased with AA race, efavirenz (EFV), nevirapine
(NVP), and alcohol use. Among women: 10%
had a TG >400 mg/dL or on therapy for TG,
19% had LDL >160 mg/dL or on therapy for LDL, and 15% had HDL <35 mg/dL or on fibrate or niacin. Higher TG levels were associated with visceral
adipose tissue, ¯
leg subcutaneous adipose tissue, upper trunk fat, CD4, HIV viral
load, protease inhibitor (PI) use, EFV and tenofovir
(TDF). AA race, alcohol use, and delavirdine (DLV) were
associated with ¯
TG levels. For LDL, ¯ HIV viral
load, and
leg subcutaneous adipose tissue were associated with higher levels, while
upper trunk fat, TDF and smoking with lower levels. HDL decreased with visceral
adipose tissue,
HIV viral load, and TDF, but was higher with NVP and alcohol use.
|
Median
(IQR)
|
All Men
|
All Women
|
Caucasian
Men
|
Caucasian
Women
|
AA
Men
|
AA Women
|
|
TG
|
170
(108-300)
|
131
(89-205)
|
201
(124-337)
|
144
(92-224)
|
125
(88-178)
|
116
(76-188)
|
|
TC
|
191
(156-228)
|
190
(160-228)
|
195
(162-232)
|
192
(160-216)
|
185
(147-217)
|
186
(159-230)
|
|
LDL
|
105
(76-130)
|
104
(79-134)
|
105
(82-131)
|
107
(78-133)
|
106
(75-130)
|
99
(77-131)
|
|
HDL
|
38.5
(32-47)
|
49
(39-61)
|
37
(30-45)
|
46
(36-53)
|
42
(34-53)
|
51
(41-64)
|
Conclusions: HIV-specific
and host factors were associated with atherogenic
lipid parameters in both men and women. Higher visceral adipose tissue, lower subcutaneous
adipose tissue and, for women, greater upper trunk fat, were associated with TG. HIV+
Caucasians of both sexes were more likely to have atherogenic
lipid profiles than HIV+ AA.
|