Serum cortisol and DHEA concentrations during HIV infection

Area of Science:

• Endocrinology
• Immunology
• Infectious Diseases

Background:

• HIV infection leads to immunodepression and cachexia, impacting CD4 cell counts and body weight.
• Adrenal steroid levels, specifically cortisol and dehydroepiandrosterone (DHEA), may play a role in HIV progression.

Purpose of the Study:

• To investigate the relationship between serum cortisol and DHEA concentrations and CD4 cell counts in HIV-positive men.
• To determine the correlation between these adrenal steroids and changes in body weight during HIV infection.

Main Methods:

• Analysis of serum cortisol and DHEA levels in HIV-infected individuals across different disease stages.
• Correlation analysis with absolute CD4 cell counts and body weight changes.
• Comparison with HIV-negative control groups.

Main Results:

• Elevated serum cortisol levels were observed at all stages of HIV infection, particularly in advanced stages (p < .001).
• Serum DHEA concentrations were inversely correlated with HIV progression, being lower in advanced stages (p < .001).
• Negative correlation found between CD4 cell counts and cortisol (r = -0.4, p < .02), and positive correlation with DHEA (r = +0.36, p < .01).
• Serum DHEA showed a negative correlation with body weight loss (r = -0.69, p < .0001), and the cortisol/DHEA ratio positively correlated with weight loss (r = +0.61, p < .0001).

Conclusions:

• Circulating adrenal steroid concentrations are linked to HIV-induced immunosuppression and cachexia.
• The cortisol/DHEA ratio may serve as an indicator of disease progression and warrants further investigation for therapeutic strategies.