Morning Free and Total Testosterone in HIV-infected Men: Implications for the Assessment of Hypogonadism
Overview
Affiliations
Background: Hypogonadism is common among HIV-infected men, even among men receiving antiretroviral therapy (ART). Our objective in this study was to determine the prevalence of biochemical hypogonadism among HIV-infected men compared with HIV-uninfected controls. We also examined the use of free testosterone (FT) and total testosterone (TT) measurements in the assessment of biochemical hypogonadism in HIV-infected and -uninfected men.
Methods: This was a cross-sectional analysis from the Multicenter AIDS Cohort Study (MACS). TT levels were measured from archived serum using liquid chromatography-tandem mass spectrometry. FT was calculated from TT and sex hormone-binding globulin (SHBG) (measured by radioimmunoassay) using the Vermeulen equation. Biochemical hypogonadism was defined as having low TT, low FT, or both.
Results: Of 945 men in the MACS Cardiovascular Substudy, T assays were not performed in 89 because of insufficient/no stored serum (n = 18) or use of T replacement therapy (TRT) (n = 71). 530 men had morning (AM) T measurements; 364 (68.7%) were HIV-infected. The prevalence of biochemical hypogonadism was similar in HIV-infected (34/364 = 9.3%) and HIV-uninfected (12/166 = 7.2%) men. Prevalence of hypogonadism, when men on TRT (n = 71) were included in the group of hypogonadal men, was higher in HIV-infected (104/434 = 24.0%) compared with HIV-uninfected (13/167 = 7.8%) men (p < 0.0001). Of 34 HIV-infected men with biochemical hypogonadism not on TRT, 11 (32.4%) had normal TT, but low FT. Of 12 HIV-uninfected men with biochemical hypogonadism not on TRT, none were in this category (p = 0.04) - all had low TT.
Conclusions: The prevalence of biochemical hypogonadism in our sample of HIV-infected men was approximately 10%, with a substantial proportion of these men having a normal TT, but low FT. The measurement of AM FT, rather than TT, in the assessment of hypogonadism in HIV-infected men will likely increase diagnostic sensitivity and should be recommended.
Akhigbe R, Oyedokun P, Akhigbe T, Hamed M, Fidelis F, Omole A Biochem Biophys Rep. 2024; 41:101889.
PMID: 39717849 PMC: 11664087. DOI: 10.1016/j.bbrep.2024.101889.
Update on acquired hypogonadism in men living with HIV: pathogenesis, clinic, and treatment.
De Vincentis S, Rochira V Front Endocrinol (Lausanne). 2023; 14:1201696.
PMID: 37455928 PMC: 10338827. DOI: 10.3389/fendo.2023.1201696.
Narinx N, David K, Walravens J, Vermeersch P, Claessens F, Fiers T Cell Mol Life Sci. 2022; 79(11):543.
PMID: 36205798 PMC: 11803068. DOI: 10.1007/s00018-022-04562-1.
Qrareya A, Mahdi F, Kaufman M, Ashpole N, Paris J Aging (Albany NY). 2022; 14(13):5345-5365.
PMID: 35830469 PMC: 9320553. DOI: 10.18632/aging.204166.
Dias J, Piggott D, Sun J, Wehbeh L, Garza J, Abraham A J Clin Endocrinol Metab. 2022; 107(7):e2971-e2981.
PMID: 35293996 PMC: 9202730. DOI: 10.1210/clinem/dgac144.