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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
41

Reproductive endocrinology of the Florida Manatee (Trichechus manatus latrirostris) : estrous cycles, seasonal patterns and behavior /

Larkin, Iskande Lieve Vandevelde, January 2000 (has links)
Thesis (Ph. D.)--University of Florida, 2000. / Typescript. Vita. Includes bibliographical references (leaves 319-338).
42

Testosterone and aging in Chinese men

Chu, Leung-wing., 朱亮榮. January 2008 (has links)
published_or_final_version / Medicine / Master / Doctor of Medicine
43

The effects of castration and testosterone replacement on the gene expression of adrenomedullin and its receptor component proteins inthe rat epididymis, seminal vesicle and coagulating gland

Wong, Pik-fan., 黃碧芬. January 2009 (has links)
published_or_final_version / Physiology / Master / Master of Medical Sciences
44

Characterisation of androgen metabolism and 5α-reductase activity in human prostate cells in vitro

Smith, Carolyn Margaret January 1994 (has links)
No description available.
45

Signals, steroids and sparrows : testing the immunocompetence handicap hypothesis

Norris, Sasha January 1998 (has links)
No description available.
46

Different Mechanisms are Involved in 3H-Androgen Uptake by the Rat Seminiferous and Epididymal Tubules in vivo

MIYAKE, KOJI, NAGAI, TATSUYA, YAMAMOTO, MASANORI 03 1900 (has links)
No description available.
47

The Effect of Hypophysectomy on Proluminal Movement of 3H-Androgens Across the Epididymal Epithelium in the Rat

MIYAKE, KOJI, NAGAI, TATSUYA, TSUJI, YOSHIKAZU, YAMAMOTO, MASANORI 03 1900 (has links)
No description available.
48

The effects of testosterone propionate on hindlimb immobilized rats

Evans, William J. 03 June 2011 (has links)
Disuse of a limb has been repeatedly demonstrated to cause pronounced atrophy of skeletal muscle. In animals and humans, disuse of a leg due to immobilization can cause pronounced catabolism of many skeletal muscle proteins. Strength, V02 max, oxidative enzyme activities, protein synthesis, and muscle weight are all diminished due to chronic limb immobilization.Testosterone is classified as an anabolic steroid which has the effect of increasing protein synthesis in many tissues. Recently, testosterone has been shown to have a definite anti-catabolic effect on skeletal muacle by competing with glucocorticoids for binding proteins within the muscle cell. This reduces the effect of the circulating catabolic hormones. By slowing protein breakdown and increasing protein synthesis in the skeletal muscle of an immobilized limb, testosterone could effectively delay the rapid atrophy so often seen.To examine the effects of testosterone on skeletal muscle atrophy during limb immobilization, forty albino, male rats were randomly divided into four groups of ten. Group I served as the non-immobilized control and received daily placebo injections of sesame oil. The rats in group II were castrated and their hindlimbs were immobilized using a plaster cast. The animals in this group also received daily injections of sesame oil. The group III rats were also castrated and casted, but they received a daily injection of 5 mg testosterone propionate. The animals in group IV were not castrated but were casted.These rats also received a daily injection of testosterone. The duration of treatment was two weeks for each rat. Body weights were measured before and after treatment. The gastrocnemius, quadriceps, soleus, and cardiac muscles were weighed after treatment. Oxygen consumption capacity (Q02), citrate synthase activity, total protein, and percentage of water were also measured in the gastrocnemius, quadriceps, and cardiac tissues.The results of this study demonstrate that hindlimb immobilization not only causes severe atrophy in those muscles immobilized, but has an overal catabolic effect on the animal. Along with the effects on muscle and body size, the immobilization also significantly reduced the aerobic capacity of affected muscle groups and cardiac tissue. The study also gave evidence that testosterone, or the lack of it, can affect the rate of muscle atrophy. The greatest reduction in body weight, muscle size, heart size, and QO2 were seen in the castrated group which only received a placebo injection of sesame oil. The anti-catabolic effect of testosterone was evedent in groups III and IV.
49

The effects of castration and testosterone replacement on the gene expression of adrenomedullin and its receptor component proteins in the rat epididymis, seminal vesicle and coagulating gland

Wong, Pik-fan. January 2009 (has links)
Thesis (M. Med. Sc.)--University of Hong Kong, 2009. / Includes bibliographical references (p. 77-97).
50

The relationships between energetic condition, immune system cellular components, testosterone corticosterone, and hemoparasites in breeding birds /

Wilder, Sarah A. January 2007 (has links) (PDF)
Thesis (M.S.) in Zoology--University of Maine, 2007. / Includes vita. Includes bibliographical references (leaves 88-95).

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