Hirsutism
(Sprache: Englisch)
In the past 10 years hirsutism has been the object of a considerable number of fundamental studies. It provides endocrinologists with an experimental model for the investigation of androgen secretion, metabolism and mechanism of action. Plasma androgen...
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Klappentext zu „Hirsutism “
In the past 10 years hirsutism has been the object of a considerable number of fundamental studies. It provides endocrinologists with an experimental model for the investigation of androgen secretion, metabolism and mechanism of action. Plasma androgen assay, free testosterone measurement, hepatic and extrahepatic androgen metabolic clearance and androgen metabolism in the skin are the different steps which were studied by many groups and represent valuable parameters of the mechanisms of hirsutism. Determination of the origin of androgen oversecretion has become easier by technical progress in differential effiuent venous catheterism, which makes it possible to compare androgens in adrenal or ovarian effiuent veins to their peripheral levels, and to determine the ovarian or adrenal source of the androgen oversecretion as well as the side responsible, essential in the case of tumors. The study of androgen metabolism and the discovery of androgen receptors in the skin confIrm the latter as an actual target cell for androgens. This target cell uses the circulating active androgen, i. e. , testosterone and can also metabolize local inactive androgens into active ones. This is the case of androstenedione and dehy droepiandrosterone which are the two main androgens secreted in women, since women secrete very little testosterone. The capacity of the skin to transform inactive androgens into active ones varies from one individual to another. That would support the concept of variable skin receptivity from one woman to another and from one ethnic group to another.
Inhaltsverzeichnis zu „Hirsutism “
A. Introduction.- B. Androgen Control of the Pilosebaceous Gland.- C. Androgen Production in Women.- I. Definition.- II. Androgen Biosynthetic Pathways.- III. Interconversion of Androgens.- IV. Plasma Levels and Blood Production Rates of Androgens.- V. Origin of Circulatory Androgens in Women.- VI. Control of Androgen Production in Women.- D. Androgen Transport in Blood.- I. Testosterone-Binding Globulin.- II. Other Plasma Proteins Binding Androgens.- III. Regulation of TeBG Activity.- IV. Physiological Role of TeBG Binding of Testosterone.- E. Hepatic Metabolism.- F. Control of Plasma Level of Testosterone: Metabolic Clearance Rate.- G. Mechanism of Androgen Action in Human Skin.- I. Introduction.- II. 5?-Reduction of Testosterone into Dihydrotestosterone.- III. Dihydrotestosterone Formation from Other Androgen Precursors.- IV. Intracellular Metabolism of Dihydrotestosterone.- V. Intracellular Retention of Dihydrotestosterone.- VI. Conclusion.- H. Clinical and Biological Assessment of Hirsutism.- I. Clinical Assessment.- II. Hormonal Investigation of Hirsutism.- I. Hirsutism of Adrenal Origin.- I. Congenital Adrenal Hyperplasia Due to 21-Hydroxylase Deficiency.- II. Congenital Adrenal Hyperplasia Due to 11?-Hydroxylase Deficiency.- III. Virilizing Adrenal Tumours.- J. Hirsutism of Ovarian Origin.- I. Polycystic Ovarian Syndrome.- II. Virilizing Ovarian Tumours.- III. Ovarian Hyperthecosis.- K. Idiopathic Hirsutism.- I. Basis of Androgen Hypersensitivity.- II. Hypersensitivity Versus Androgen Overproduction.- III. Clinical and Biological Characteristics.- IV. Treatment.- V. Conclusion.- L. Treatment of Hirsutism.- I. Introduction.- II. Methods.- III. Conclusion.- References.
Bibliographische Angaben
- Autoren: P. Mauvais-Jarvis , F. Kuttenn , I. Mowszowicz
- 2012, Softcover reprint of the original 1st ed. 1981, XII, 112 Seiten, 32 Abbildungen, Maße: 24,4 cm, Kartoniert (TB), Englisch
- Verlag: Springer, Berlin
- ISBN-10: 3642815731
- ISBN-13: 9783642815737
Sprache:
Englisch
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