Search results for "VARY"
showing 10 items of 682 documents
Increased DHEAs levels in PCO syndrome: evidence for the existence of two subgroups of patients
1986
In 49 patients affected by PCO syndrome the serum levels of dehydroepiandroster-one-sulphate (DHEAs) were determined and correlated with the cfinical presentation and the endocrine pattern. Twenty-three patients (47%) had high DHEAs levels (h-DHEAs patients). They presented a milder clinical presentation (low incidence of amenorrhea) than PCO patients with normal DHEAs levels (n-DHEAs patients). In h-DHEAs patients the finding of a normal DHEAs. response to ACTH and of slightly increased 17OHP serum levels suggested that the elevation of serum DHEAs was not due to an adrenal enzymatic deficiency but to a tonic hyperstimulation of the adrenals. Two subgroups of h-DHEAs patients were identifi…
Pituitary-adrenal responses to ovine corticotropin-releasing factor in polycystic ovary syndrome and in other hyperandrogenic patients.
1990
This study was carried out to further characterize the pituitary-adrenal androgen responses of hyperandrogenic patients with 'classic' polycystic ovary syndrome (PCO) and others who were less distinctive and have been called 'PCO-like'. PCO-like patients differed from PCO only in that serum luteinizing hormone (LH) levels were normal and anovulation was not consistent. Ovine corticotropin-releasing factor (CRF) resulted in normal responses of adrenocorticotropic hormone and cortisol in the two groups when compared to controls, while androstenedione (delta 4A) and dehydroepiandrosterone (DHEA) responses were significantly elevated. There were no differences in the responses of PCO and PCO-li…
Ovarian suppression reduces clinical and endocrine expression of late-onset congenital adrenal hyperplasia due to 21-hydroxylase deficiency.
1994
Objective To determine the effectiveness of GnRH-agonist (GnRH-a) treatment in women with late onset congenital adrenal hyperplasia. Design Prospective assessment of GnRH-a treatment in six women with documented late-on-set congenital adrenal hyperplasia who were not preselected. Comparisons were made to previous responses in the same patients receiving dexamethasone. Eight age- and weight-matched ovulatory women served as controls. Setting Academic medical center. Intervention Baseline blood determinations before and after IV ACTH, before and after 6months of GnRH-a treatment. Estrogen and progestin replacement was begun in all women after the 3rd month of treatment. Main Outcome Measures …
Lower apoptosis rate in human cumulus cells after administration of recombinant luteinizing hormone to women undergoing ovarian stimulation for in vi…
2007
Objective: To investigate the effects of recombinant (r-) LH supplementation in “low responder” patients undergoing ovarian stimulation with r-FSH for an IVF program. The apoptosis rate in cumulus cells was used as an indicator of oocyte quality. Design: Comparison of the rate of DNA fragmentation and caspase-3 activity in cumulus cells in women stimulated with r-LH and r-FSH, versus patients treated with r-FSH alone (control). Setting: In vitro fertilization (IVF) laboratory. Patient(s): Forty patients undergoing assisted fertilization programs treated with a GnRH agonist, or r-FSH treatment begun on day 3 of the cycle (control). In the r-LH group, from day 8 of gonadotropin stimulation, 1…
Reassessment of adrenal androgen secretion in women with polycystic ovary syndrome
1995
Objective To reevaluate the clinical significance of elevations of adrenal androgens in polycystic ovary syndrome (PCOS). Methods Thirty women with PCOS and ten ovulatory controls were evaluated. Serum dehydroepiandrosterone (DHEA) sulfate and 11β-hydroxyandrostenedione were measured before and after 3 and 6 months of GnRH agonist (GnRH-A) therapy. All controls and 15 women with PCOS received intravenous ACTH before and after GnRH-A therapy. Results Twenty-one (70%) of the women with PCOS had elevations of DHEA sulfate, and 16 (53%) had elevations in 11/3-hydroxyandrostenedione. Only two women with PCOS had normal values of both adrenal androgens. After GnRH-A therapy, only 11 subjects (37%…
Refractory Acne and 21-Hydroxylase Deficiency in a Selected Group of Female Patients.
2009
<i>Background:</i> Excessive androgen production, suspected in women when acne is accompanied by hirsutism and menstrual irregularities, may be due to congenital adrenal hyperplasia. This inherited disorder of cortisol biosynthesis is caused in more than 90–95% of all cases by 21-hydroxylase deficiency (21-OHD). The steroid 21-hydroxylase gene <i>(CYP21)</i> has a high degree of variability. <i>Objective:</i> This study was conducted to evaluate <i>CYP21 </i>gene mutations in a selected group of women with papulopustular and comedonal acne refractory to treatment, irregular menses and hirsutism. <i>Methods:</i> 30 out of 61 women e…
Low estradiol-to-testosterone ratio is associated with oligo-anovulatory cycles and atherogenic lipidic pattern in women with polycystic ovary syndro…
2010
The estradiol-to-testosterone (E2/T) ratio has been investigated in different diseases but few in vivo data are available with regard to its role in women with ovary syndrome (PCOS). The aim of this study was to evaluate the role of the E2/T ratio in the ovulatory function and metabolic pattern in such women.We retrospectively evaluated hyperandrogenemia, clinical hyperandrogenism, ovarian morphology, hypothalamo-hypophyseal axis and metabolic syndrome parameters in a cohort of 202 consecutive women affected by PCOS. An oral glucose tolerance test measured areas under the curve for insulin (AUC(2hIRI)), for glucose (AUC(2hglucose)), and the HOMA-IR and Matsuda index of insulin resistance we…
The oligomenorrhoic phenotypes of polycystic ovary syndrome are characterized by a high visceral adiposity index: a likely condition of cardiometabol…
2011
BACKGROUND: Women with polycystic ovary syndrome (PCOS) frequently exhibit central obesity, glucose intolerance, atherogenic dys- lipidemia and hypertension, which are characteristic features of a condition of cardiometabolic risk. Our objective was to investigate the relationship between visceral adiposity index (VAI) and phenotypic characteristics in women with PCOS. METHODS: We conducted a cross-sectional case-control study in our Endocrinology Outpatients Clinic. A total of 220 women with PCOS (Rotterdam definition) and I44 age- and BMI-matched healthy women were studied. We evaluated hyperandrogenemia and clinical hyperandrogenism, ovarian morphology, hypothalamic-hypophyseal axis and …
Alterations in the sensitivity of serum insulin-like growth factor 1 and insulin-like growth factor binding protein-3 to octreotide in polycystic ova…
1995
Objective To determine if the somatostatin analog, octreotide, affects insulin and related peptides and, hence, androgen levels differently between polycystic ovary syndrome (PCOS) patients and controls. Design Prospective controlled trial. Setting Reproductive endocrinology clinic of our medical center. Patients Eleven women with PCOS and six matched ovulatory controls. Interventions Octreotide (100 μg) was administered subcutaneously in the midfollicular phase. Serum was obtained before and at 60, 120, 180, and 240 minutes after octreotide. Main Outcome Measures Fasting insulin, insulin-like growth factor 1 (IGF-1), insulin-like growth factor binding protein-3 (IGFBP-3), T, androstenedion…
Evidence for increased androsterone metabolism in some normoandrogenic women with acne.
1993
Increased androgen production from the ovary, adrenal or locally in skin has been implicated in the pathogenesis of acne. Recent data have provided evidence that androsterone (Ao) metabolism is exaggerated in acne and serum metabolites of Ao differentiate between acne and hirsutism in hyperandrogenic women. Here we have extended these studies to normoandrogenic women who have moderate to severe acne. We measured serum ovarian and adrenal androgens as well as the glucuronide and sulfate metabolites of Ao and 3 alpha-androstanediol which reflect, in part, peripheral androgen action. In a group of 15 well-selected normoandrogenic patients with acne, both serum Ao glucuronide (G) and Ao were el…