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Friday, May 8, 2020 | History

3 edition of evaluation of testicular endocrine function before and in puberty found in the catalog.

evaluation of testicular endocrine function before and in puberty

Milo Zachmann

evaluation of testicular endocrine function before and in puberty

effects of a single dose of human chorionic gonadotropin on urinary steroid excretion under normal and pathological conditions.

by Milo Zachmann

  • 116 Want to read
  • 25 Currently reading

Published by Periodica in København .
Written in English

    Subjects:
  • Testis.,
  • Steroid hormones -- Metabolism.,
  • Puberty.

  • Edition Notes

    Bibliography: p. 89-[94].

    SeriesActa Endocrinologica. Supplementum,, 164.
    Classifications
    LC ClassificationsQP255 .Z26
    The Physical Object
    Pagination94 p.,
    Number of Pages94
    ID Numbers
    Open LibraryOL5471243M
    ISBN 108774940503
    LC Control Number73174361

    The effect of testicular irradiation on Leydig cell function in prepubertal boys with acute lymphoblastic leukemia Article (PDF Available) in Archives of Disease in Childhood 58(11)   All 18 patients had experienced prolonged unilateral testicular torsion before puberty and had undergone surgical untwisting with replacement of the nonviable testis in the scrotum. Fourteen of the patients had an absent testis on the affected side, and four had severe atrophy .

      Testicular atrophy refers to the shrinking of your testicles, which are the two male reproductive glands located in the scrotum. The scrotum’s main function is . Evaluation of testicular functions (production of sperm and androgens) is an important aspect of preclinical safety assessment and testicular toxicity is comparatively far more common than ovarian.

    In boys, long-term testicular functions and sperm production are regulated with mini puberty and mini puberty contributes to masculinization of the brain. The role of mini puberty in female.   Disorders of puberty can profoundly impact physical and psychosocial well-being. Precocious puberty is pubertal onset before eight years of age in girls and before .


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Evaluation of testicular endocrine function before and in puberty by Milo Zachmann Download PDF EPUB FB2

The evaluation of testicular endocrine function before and in puberty. Effect of a single dose of human chorionic gonadotropin on urinary steroid excretion under normal and pathological conditions. Zachmann by: The evaluation of testicular endocrine function before and in puberty; effects of a single dose of human chorionic gonadotropin on urinary steroid excretion.

The evaluation of testicular endocrine function before and in puberty. Effect of a single dose of human chorionic gonadotropin on urinary steroid excretion under normal and pathological by: The first two parts of the course, dealing with assay and metabolism of androgens, and with the regulation of testicular function, were published in Volume I.

The present volume contains 16 contributions and begins with an analysis of steroid secretion by the testis in man. J Androl) ENDOCRINE EVALUATION OF TESTICULAR FUNCTION underestimated with high SHBG levels because of differences between the SHBG levels in the standards and samples In addition, direct assays tend to overestimate the true values of testosterone Cited by: SCIENTIFIC ARTICLES Evaluation of Testicular Function in Prepubertal Boys by Means of the Luteinizing Hormone-Releasing Hormone Test* Zvi Dickerman, M.D.

Jacob Landman, M.D. Ruth Prager-lewin, Zvi Laron, M.D. †Institute of Pediatric and Adolescent Endocrinology, Beilinson Medical Center, Petah Tivka Institute of Pediatric and Adolescent Endocrinology, Beilinson Medical Center Cited by: 8.

To investigate the pituitary-testicular function in nephrotic rats, a sequence of experiments was undertaken in adult male rats after a single dose of puromycin aminonucleoside (PAN). Endocrine modifications were evaluated chronologically throughout the experimental disease in order to determine the appearance of hormone alterations which lead Cited by: 3.

Laboratory tests are an essential component of almost all evaluations, and proper interpretation of the results obtained requires an understanding of methodology as well as an awareness of the impact of endocrine rhythms, age, race, body composition, and nutrition on the various tests of endocrine testicular by: 3.

Growth, testicular and endocrine function of boars exposed to 8, 16 or 24 hours of light daily before puberty. Anim. Reprod. Sci., Sixty Yorkshire boars were used in two replicates to evaluate the influence of duration of pho- toperiod on growth, testicular and reproductive endocrine by: 5.

The evaluation of testicular function in pre-pubertal children may be We hypothesize that hyperinsulinemia may therefore influence testicular function even before puberty begins. Therefore, particular care should be taken to avoid the onset of hyperinsulinemia in children to prevent a future deleterious effect on fertility.

opinions and. The main constituent of endocrine laboratory diagnosis of testicular dysfunction is the determination of the gonadotropins, luteinizing hormone and follicle-stimulating hormone (FSH) secreted from the pituitary gland, of testosterone secreted from the Leydig cells, and of inhibin-B secreted from the Sertoli cells.

Where hypothalamic or pituitary disorders are suspected as causes of testicular. The Endocrine Function of the Human Testis, Volume 1, contains papers that comprise the series of lectures given in a short course on the "Endocrine Function of the Human Testis" which was organized by the Post-Graduate School of Endocrinology in the University of Florence.

puberty has been achieved. It is concluded that determination of basal plasma FSH levels and the response to LH-RH stimulation is a useful diagnostic tool for evaluating testicular function in prepubertal boys with suspected pathology of the testes. The diagnosis of testicular dysfunction prior to puberty is difficult.

Clinical examination. Critical Aspects of Histopathologic Evaluation This guidance document has been prepared to aid the pathologist in detecting changes that are characteristic of endocrine disrupting chemicals. The endocrine system is, by its nature, a dynamic self regulating system that functions within a range of “normal variability”.File Size: KB.

This can start before any puberty has begun in normal girls. In boys, the first sign of puberty is testicle growth, then penis and pubic hair growth.

Boys develop facial hair, body odor, and lower voices during puberty. Some boys may develop some small breast buds during early puberty that is normal.

They typically go away. Testicular Torsion: Diagnosis, Evaluation, and Management VICTORIA J serving organ function The testes is typically a four- to eight-hour window before permanent ischemic damage occursCited by: The testes are twin endocrine glands that release testosterone, a hormone necessary for the normal development of male physical characteristics, such as muscle mass and hair growth.

This article overviews testes function in the endocrine system. No overt signs of hypogonadism are evident before puberty in Klinefelter syndrome, a sex-chromosome aneuploidy with late-onset testicular dysgenesis. Serum AMH is normal during childhood and early puberty, in correlation with normal inhibin B and FSH, indicating that Sertoli cell function is preserved until advanced stages of puberty [ 64, 65 ].Cited by: Laboratory evaluation.

In cases of true gynecomastia without a clear cause, laboratory tests should be pursued, and must include, liver, kidney and thyroid function tests (to exclude the respective medical conditions), as well as hormonal tests (E2, total and free testosterone, A, LH, FSH, PRL, hCG, DHEA-SO4 or 17 ketosteroids, SHBG and αFP).[2,3,6,9] In aging males, hypogonadism is commonly.

Testosterone is by far the major androgen secreted by the adult hormone and its derivatives (the 5a-reduced androgens) are responsible for initiation and maintenance of the body changes associated with puberty in males. Androgens are sometimes called anabolic steroids because they stimulate the growth of muscles and other structures (table ).

Hypogonadism is often unrecognized before the age of puberty unless it is associated with growth retardation or other anatomic or endocrine abnormalities.

When hypogonadism develops before the age of puberty, the manifestations are those of impaired puberty: • Small testes, phallus, and prostate • Scant pubic and axillary hair.So, it is interesting to know about the testicular antioxidant defence status and oxidative stress parameters along with testicular physiology at the 30 days of age, that is, before puberty.

The objective of the present study is to investigate the modulation of antioxidant defence status in neonatal persistent hypothyroid rats before their sexual by:   Boys with Undescended Testes: Endocrine, Volumetric and Morphometric Studies on Testicular Function before and after Orchidopexy at Nine Months or Three Years of Age Primary Testicular Dysfunction Is a Major Contributor to Abnormal Cited by: