Reproductive Hormones And Testicular Histology In Males With Human Immunodeficiency Virus Infection
Abstract
Reproductive endocrine dysfunction and abnormalities of testicular histology
have been described in men with Human Immunodeficiency Virus (HIV)
infection and Acquired Immunodeficiency Syndrome (AIDS). This has mainly
been among homosexual drug abusing men in the United States and Europe.
The objective of this study was to study the changes that occur in male
reproductive hormones and testicular histology in Ugandan black heterosexual
non-drug abusing HIV infected men.
Eighty seven men, 25 HIV negative (controls) and 62 HIV positive (cases)
were studied. Of the HIV positive men, five, eighteen, twenty nine and ten
were in the WHO Clinical stage 1,2,3 and 4 respectively. Blood samples were
obtained from these subjects and serum follicle stimulating hormone (FSH)
luteinising hormone (LH), and prolactin were measured by Enzyme Immuno
Assay while testosterone and cortisol were measured by radioimmunoassay.
The right testis was also obtained at postmortem from 30 males for histology.
Fifteen of these were HIV positive (cases) and 15 were HIV negative
(controls). Seven of the HIV negative had died from traumatic causes.
Sections of the upper, middle and lower poles of the testis were prepared and
stained with haernatoxylln and eosin and mansoni stain for collagen, after
which they were examined by light microscopy. .
When the cases and controls were compared, the mean serum testosterone
was statistically significantly lower in the HIV positive group (13.6 ± 7.4 m
moUl) than in the HIV negative group (18.7 ± 7.8 mmol/L). Hypogonadism
was also commoner in the cases (48%) than the control group (20%).
Diminished libido and impotence were also more prevalent in the HIV positive
group (46.8%) than the HIV negative group, (8.0%).
Serum FSH was higher in the HIV cases (6.1 ± 6.6 iu/I) than the controls (2.7
± 2.2 Lull). However, LH was unaltered. Serum cortisol and prolactin were
lower in the HIV positive group than the HIV negative group. Testicular
histology showed abnormal spermatogenesis in 60% of those with HIV
infection whereas all those t,hat were HIV negative and had died due to
traumatic causes had normal spermatogenesis. Spermatogenesis was
commonly arrested at the spermatocyte and spermatogonia stage with a few
tubules lined with Sertoli cells only. Sixty seven percent of the tubules had a
thickened basement membrane. However, .the Leydig cells and the
interstitium were generally unaltered. ~
In Uganda as elsewhere, men with AIDS show a disrupted spermatogenic
process and hypogonadism in common. However, low serum prolactin and
cortisol found in this study are in disagreement with studies done elsewhere
where these were normal or raised in HIV infection and AIDS.
Citation
Master of Science (Reproductiv Biology)Publisher
University of Nairobi