Effect of obesity on the response to acute adrenocorticotropin stimulation in eumenorrheic women

Ricardo Azziz, H. A. Zacur, C. R. Parker, E. L. Bradley, L. R. Boots

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Objective: Alterations in adrenocortical biosynthesis, as measured by the steroid response to acute adrenocorticotropic hormone (ACTH) stimulation, have frequently been reported in female hyperandrogenism. These patients are also commonly obese, which may account for some of these abnormalities. The object of this study was to test the hypothesis that obesity alters the adrenal response to acute adrenal stimulation. Design: A prospective study of healthy premenopausal women of varying weights. Setting: University-based clinical research center. Patients: Fifty-seven healthy, eumenorrheic, nonhirsute female volunteers were studied, 30 weighing between 90% and 110% (normal-weight) and 27 weighing >120% (obese) their ideal body weight. Interventions: All subjects underwent a 60-minute acute intravenous ACTH-(1-24) stimulation test in the follicular phase (days 3 to 8) of the menstrual cycle. Main Outcome Measures: The basal levels of dehydroepiandrosterone sulfate (DHEAS), total and free testosterone (T), sex hormone-binding globulin (SHBG), estrone, estradiol, prolactin, and the luteinizing and follicle-stimulating hormone ratio were measured. Basal and poststimulation levels of androstenedione (A), dehydroepiandrosterone (DHEA), 17α-hydroxyprogesterone (17α-OHP), 17-hydroxypregnenolone (17-PREG), 11-deoxycortisol (S), and cortisol (F) were also obtained, and the net increments after stimulation were calculated. Results: Normal-weight and obese women did not differ in age, height, or waist-hip ratio. Obese volunteers demonstrated lower circulating SHBG, 17-PREG, and S levels, and S/F ratio, but a higher free T and DHEAS/DHEA levels. No other differences were observed in either basal or adrenal response measures, with the exception of the net increment in A, which was almost twofold higher in obese volunteers (P < 0.001). Conclusions: Obesity in eumenorrheic nonhirsute women is associated with lower circulating SHBG activity and higher free T and DHEAS/DHEA levels. No significant difference in adrenocortical response to acute ACTH-(1-24) stimulation was observed between obese and normal-weight women, with the exception of a higher net adrenal output of A. It does not appear that the abnormal adrenal stimulation results frequently observed in hyperandrogenic women are a consequence of their obesity.

Original languageEnglish (US)
Pages (from-to)427-433
Number of pages7
JournalFertility and sterility
Volume56
Issue number3
StatePublished - Jan 1 1991

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Adrenocorticotropic Hormone
Obesity
Sex Hormone-Binding Globulin
Dehydroepiandrosterone Sulfate
Dehydroepiandrosterone
17-alpha-Hydroxypregnenolone
Weights and Measures
Volunteers
Cortodoxone
17-alpha-Hydroxyprogesterone
Hyperandrogenism
Ideal Body Weight
Follicular Phase
Waist-Hip Ratio
Androstenedione
Estrone
Follicle Stimulating Hormone
Menstrual Cycle
Prolactin
Hydrocortisone

ASJC Scopus subject areas

  • Reproductive Medicine
  • Obstetrics and Gynecology

Cite this

Azziz, R., Zacur, H. A., Parker, C. R., Bradley, E. L., & Boots, L. R. (1991). Effect of obesity on the response to acute adrenocorticotropin stimulation in eumenorrheic women. Fertility and sterility, 56(3), 427-433.

Effect of obesity on the response to acute adrenocorticotropin stimulation in eumenorrheic women. / Azziz, Ricardo; Zacur, H. A.; Parker, C. R.; Bradley, E. L.; Boots, L. R.

In: Fertility and sterility, Vol. 56, No. 3, 01.01.1991, p. 427-433.

Research output: Contribution to journalArticle

Azziz, R, Zacur, HA, Parker, CR, Bradley, EL & Boots, LR 1991, 'Effect of obesity on the response to acute adrenocorticotropin stimulation in eumenorrheic women', Fertility and sterility, vol. 56, no. 3, pp. 427-433.
Azziz R, Zacur HA, Parker CR, Bradley EL, Boots LR. Effect of obesity on the response to acute adrenocorticotropin stimulation in eumenorrheic women. Fertility and sterility. 1991 Jan 1;56(3):427-433.
Azziz, Ricardo ; Zacur, H. A. ; Parker, C. R. ; Bradley, E. L. ; Boots, L. R. / Effect of obesity on the response to acute adrenocorticotropin stimulation in eumenorrheic women. In: Fertility and sterility. 1991 ; Vol. 56, No. 3. pp. 427-433.
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N2 - Objective: Alterations in adrenocortical biosynthesis, as measured by the steroid response to acute adrenocorticotropic hormone (ACTH) stimulation, have frequently been reported in female hyperandrogenism. These patients are also commonly obese, which may account for some of these abnormalities. The object of this study was to test the hypothesis that obesity alters the adrenal response to acute adrenal stimulation. Design: A prospective study of healthy premenopausal women of varying weights. Setting: University-based clinical research center. Patients: Fifty-seven healthy, eumenorrheic, nonhirsute female volunteers were studied, 30 weighing between 90% and 110% (normal-weight) and 27 weighing >120% (obese) their ideal body weight. Interventions: All subjects underwent a 60-minute acute intravenous ACTH-(1-24) stimulation test in the follicular phase (days 3 to 8) of the menstrual cycle. Main Outcome Measures: The basal levels of dehydroepiandrosterone sulfate (DHEAS), total and free testosterone (T), sex hormone-binding globulin (SHBG), estrone, estradiol, prolactin, and the luteinizing and follicle-stimulating hormone ratio were measured. Basal and poststimulation levels of androstenedione (A), dehydroepiandrosterone (DHEA), 17α-hydroxyprogesterone (17α-OHP), 17-hydroxypregnenolone (17-PREG), 11-deoxycortisol (S), and cortisol (F) were also obtained, and the net increments after stimulation were calculated. Results: Normal-weight and obese women did not differ in age, height, or waist-hip ratio. Obese volunteers demonstrated lower circulating SHBG, 17-PREG, and S levels, and S/F ratio, but a higher free T and DHEAS/DHEA levels. No other differences were observed in either basal or adrenal response measures, with the exception of the net increment in A, which was almost twofold higher in obese volunteers (P < 0.001). Conclusions: Obesity in eumenorrheic nonhirsute women is associated with lower circulating SHBG activity and higher free T and DHEAS/DHEA levels. No significant difference in adrenocortical response to acute ACTH-(1-24) stimulation was observed between obese and normal-weight women, with the exception of a higher net adrenal output of A. It does not appear that the abnormal adrenal stimulation results frequently observed in hyperandrogenic women are a consequence of their obesity.

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