Key Points Hem
NCAH resulting from 11P-hydroxylase or 3P-hydroxysteroid dehydrogenase is very rare and may not exist in women presenting with hyperandrogenism in adulthood. Consequently, screening for these disorders in hyperandrogenic patients is not necessary. Neither clinical presentation nor androgen plasma levels can be used for the screening or diagnosis of NCAH in hyperandrogenic women. The measurement of a follicular phase morning level of serum 17-OHP should be included in the initial investigation...
Info Ajh
Low serum levels of free unbound testosterone. ''Exogenous androgen excess. functional ovarian hyperandrogenism V. Padmanabhan, unpublished results . N A. not applicable rodent adrenal glands do not synthesize corticosterone from 17OHP. PCOS. polycystic ovary syndrome hCG. human chorionic gonadotropin LH. luteinizing hormone DHEA, dehydroepiandrosterone IGF. insulin-like growth factor. LH 20 , and treatment with either dehydroepiandrosterone 21,22 or RU486 an antiprogestagen and...
Background Jyy
There are a number of etiologies of hyperandrogenism in pediatric and adolescent populations, as detailed here. Premature adrenarche also known as premature pubarche is defined as the development of pubic hair prior to age 8 years. Additionally, tall stature, axillary hair, apocrine odor, or acne may also be present. Premature adrenarche is distinguished from precocious puberty by the lack of accelerated bone maturation, virilization, and breast development. Premature adrenarche can present as...
Introduction Dga
Polycystic ovary syndrome PCOS may present with a variety of clinical manifestations Table 1 , which may differ according to ethnic, racial, and environmental factors, and the co-existing presence of, among other factors, obesity and insulin resistance. None of the clinical features observed, taken singly, are pathognomonic. However, the most commonly associated clinical abnormalities observed in PCOS are hyperandrogenism, oligomenorrhea, and polycystic ovaries, although the specific...
Humana Press
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Conclusions Bhu
Hyperandrogenism in pediatric and adolescent populations is not uncommon. The majority of patients presenting with hyperandrogenism will eventually be diagnosed with PCOS. The diagnostic criteria for PCOS in adolescence are challenging because of the high incidence of menstrual irregularity in early adolescence and the lack of normative clinical and endocrine parameters in ethnic heterogeneous populations. The role for insulin resistance as a primary pathophysiological finding is emerging. The...
Summary Fln
Insulin resistance with compensatory hyperinsulinemia has been demonstrated to occur in 50-70 of women with polycystic ovary syndrome PCOS , regardless of weight. Hyperinsulinemia stimulates excess ovarian androgen production, thereby contributing to the hyperandrogenism and chronic anovulation characteristic of PCOS. The exact cause of insulin resistance in PCOS is unknown, but it appears to be related to a postbinding defect in insulin receptor-mediated signal transduction. Because of insulin...
Effect of Hyperinsulinemia on Anovulation in PCOS
Numerous studies have demonstrated that hyperinsulinemia contributes to the chronic anovulation of PCOS. In the largest long-term study, 305 women with PCOS were randomized to the insulin sensitizer troglitazone 150, 300, or 600 mg daily or placebo for 44 weeks 10 . Women receiving troglitazone at doses of 300 and 600 mg daily had a significantly higher ovulation rate 0.42 and 0.58 than those receiving placebo 0.32 p lt 0.05 and 0.0001, respectively . This increase in ovulation rate was dose...
Key Points Abn
2D U S is the standard for imaging polycystic ovaries. The transabdominal route should always be the first step in a pelvic sonographic examination, followed by the transvaginal route excepted in virginal women or those refusing the exam , which offers a better spatial resolution. The current consensus definition of polycystic ovaries by U S determined at the joint ASRM ESHRE Rotterdam 2003 consensus meeting on PCOS is as follows 1 12 or more follicles measuring 2-9 mm in diameter and or 2...
Key Points Osr
The ovarian theca cells in PCOS appear to be hyperstimulated by abnormal concentrations of LH and insulin. The increased number and steroidogenic capacity of the theca cells in PCOS leads to excessive production of androstenedione, which is metabolized to testosterone and 5a-androstane-3,17-dione rather than estrogen by the granulosa cells. The granulosa cells in PCOS fail to express adequate amounts of aromatase, but instead prematurely express LH receptors and produce progesterone.
Introduction Pyg
Several strategies may be considered in the treatment of hirsutism. They comprise cosmetic procedures and drugs, administered either topically or systemically. In many hirsute subjects, cosmetic procedures may work well. However, in most cases, especially in more hyperandrogenic subjects, all these procedures may fail to achieve satisfactory control of hirsutism. In these cases, drugs are an indispensable addition to correct the underlying causative factor. The aim of pharmacological treatment...
Anovulation Is A Characteristic Feature Of Pcos. It Manifests As Menstrual
The features of PCOS may be elicited when obtaining the medical history or upon the physical examination. The ovarian morphological and the biochemical and metabolic features of the disorder are discussed in Chapters 16 and 17. The evaluation of patients with androgen excess, including PCOS, is discussed in Chapter 33. 2.1. Features Elicitable by Medical History In this section, we will outline important information that the medical history will elicit concerning the features of PCOS, including...
Medical History and Physical Examination in Patients With Possible Androgen
We outline here the basics of the medical history and physical exam in the patient suspected of suffering from androgen excess. The timing and pace of pubertal development and its relation to complaints of unwanted hair growth, hair loss, acne, and or obesity should be established. The onset and progression of these complaints should also be established. Drug or medication use and exposure or use of skin irritants should be elicited. A detailed menstrual history should be obtained, with an...
Summary Fgv
Androgens are important sex steroid hormones for women as well as men. Previously, the focus of androgen research in women was almost exclusively on issues of excess. Only recently have we become aware that androgens play an important role in many aspects of the health and well-being of women. From sexual orientation to brain development to bone health, androgens are closely intertwined with estrogens, and only by understanding the former can we have a full understanding of women's health and...
Introduction Yyz
Pregnancy-related androgen excess and virilization are almost always the result of conditions arising during pregnancy. Hyperandrogenism usually results in infertility through anovulation, even when hirsutism or virilization is not clinically evident. Not surprisingly, clinically evident cases of pregnancy-related androgen excess are rare, making the condition interesting from a theoretical point but also challenging and urgent from a clinical point. The clinician may be called on to estimate...
Summary Lqc
Whole body resistance to the glycemic actions of insulin is a frequent occurrence in individuals with poly-cystic ovary syndrome PCOS . Reductions in insulin action on glucose metabolism have been demonstrated in a number of tissues or cells from PCOS subjects. These involve changes in either, or both, the sensitivity and maximal responsiveness to insulin. Meanwhile, the mitogenic and ovarian steriodogenic actions of insulin are intact. Altered phosphorylation of key insulin-signaling...
References Hdy
1. McKeon R. Introduction to Aristotle. New York The Modern Library, 1947. 2. WHO. Development and Constitution of the W.H.O. New York United Nations, 1947. 3. Cooley ME. Quality-of-life in persons with non-small cell lung cancer a concept analysis. Cancer Nurs 1998 21 3 151-161. 4. Spilker B. Quality-of-Life Assessment in Clinical Trials. New York Raven Press 1990. 5. WHO Division of Mental Health. WHO-QOL study protocol The development of the World Health Organization quality-of-life...
Info Ybi
aThe measurements were carried out with four different direct testosterone immunoassay kits that included radioactive RIA or chemiluminescent CIA markers. Comparisons were made to testosterone values determined by conventional RIA. p lt 0.05 failed test for validity . aThe measurements were carried out with four different direct testosterone immunoassay kits that included radioactive RIA or chemiluminescent CIA markers. Comparisons were made to testosterone values determined by conventional...
Key Points Hen
Obesity is a common condition in women with PCOS, affecting more than half of them. Most PCOS subjects, whether overweight, obese, or normal weight, may present with an abdominal body fat distribution. Obesity may play an important pathophysiological role in favoring PCOS, particularly during adolescence Obese women with PCOS are characterized by more severe hyperandrogenism, insulin resistance and hyperinsulinemia, and menstrual abnormalities. Obesity appears to represent a prerequisite for...
References Rth
1. Azziz R. The evaluation and management of hirsutism. Obstet Gynecol 2003 101 995-1007. 2. Barth JH. How robust is the methodology for trials of therapy in hirsute women Clin Endocrinol 1996 45 379-380. 3. Azziz R, Ochoa TM, Bradley EL Jr, Potter HD, Boots LR. Leuprolide and estrogen versus oral contraceptive pills for the treatment of hirsutism a prospective randomized study. J Clin Endocrinol Metab 1995 80 3406-3411. 4. Venturoli S, Marescalchi O, Colombo FM, et al. A prospective,...
Wiesner G. Vaz M. Collier G. Y Col. Leptin Is Released From The Human Brain
1. Ehrmann DA. Polycystic ovary syndrome. N Engl J Med 2005 352 1223-1236. 2. Dunaif A. Insulin resistance and the polycystic ovary syndrome mechanisms and implications for pathogenesis. Endocr Rev 1997 18 774-800. 3. Poretsky L, Cataldo NA, Rosenwaks Z, Giudice LC. The insulin-related ovarian regulatory system in health and disease. Endocr Rev 1999 20 535-582. 4. Gambineri A, Pelusi C, Vicennati V, Pagotto, U, Pasquali R. Obesity and the polycystic ovary syndrome. Int J Obes Rel Metab Dis 2002...
Cah
0Refers to the severity of the defective enzymatic activity of P45021 determined by the mutation. 'The variations in phenotype with Intron 2 mutations are thought to be caused by the variable region around nucleotide 656, which affects the splicing of the intron, although the exact mechanism has yet to be elucidated. Adapted from refs. 22-31. 0Refers to the severity of the defective enzymatic activity of P45021 determined by the mutation. 'The variations in phenotype with Intron 2 mutations are...
Background Tny
NCAH resulting from 3P-HSD deficiency has been purportedly diagnosed in 1-15 of children with premature pubarche 3,4 and a variable frequency of females with hirsutism and menstrual disorders with pubertal or postpubertal onset 5-7 . In these early studies, patients were presumed to suffer from 3 P-HSD-deficient NCAH if they demonstrated a pregnenolone PREG , 17-hydroxy-pregnenolone 17-HPREG , dehydroepiandrosterone DHEA , and or androstenediol ADIOL peak value, or a PREG P4, 17-HPREG 17-HP,...
Background
2.1. Hyperandrogenism in Mythology and the Arts Male-like hair growth and masculinization of women, and the ambiguity of genders, has fascinated mankind for millennia. Hapi or Hapy , god of the Nile, was described as an obese bearded man with the breasts of a woman 1 . Pharaoh Maatkare Hatshepsut of Egypt 1473-1458 bc , one of only two female pharaohs, was reported to be hirsute, although it would appear that she actually wore a false beard and dressed like a man primarily to emphasize her role...
References
1. Funk amp Wagnalls Standard Dictionary of Folklore, Mythology, and Legend, Vol. 2. New York Funk amp Wagnalls Co., 1950 479. 2. Raehs A. Zur Ikonographie des Hermaphroditen. Frankfurt am Main Peter Lang, 1990 53. 3. Lacey JH. Anorexia nervosa and a bearded female saint. Br Med J Clin Res Ed 1982 285 1816-1817. 4. Kirsch JP transcribed by Marie Jutras . Popess Joan. In The Catholic Encyclopedia, Volume VIII. Robert Appleton Company, 1910. online edition, 2003, K. Knight 5. Miguel de Cervantes...
Contributors
David H. Abbott, PhD National Primate Research Center and Department of Obstetrics and Gynecology, University of Wisconsin, Madison, WI Yves Ardaens, md Department of Radiology, Hopital Jeanne de Flandre, Centre Hospitalier et Universitaire de Lille, Lille, France Ricardo Azziz, md, mph, mba Department of Obstetrics and Gynecology, Cedars-Sinai Medical Center Department of Obstetrics and Gynecology, and Department of Medicine, The David Geffen School of Medicine at University of California, Los...