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Growth and reproductive adaptation in male rats with chronic protein deficiency
protein deficiency undernutrition testicular
2009/2/20
In previous studies, male rats fed a low-protein diet beginning at weaning were found to have impaired sexual development through age 11 weeks when compared to food-restricted, weight-matched contro...
Clinical studies in an adult male patient with “isolated follicle stimulating hormone （FSH）deficiency”
isolated FSH deficiency gonadotropin deficiency hypogonadism infertility FSH deficiency
2009/2/20
Previous reports concerning isolated follicle stimulating hormone (FSH) deficiency and its possible pathogenesis have been conflicting. Both "normal" and "abnormal" FSH response to luteinizing hormone...
Animal model of isolated gonadotropin deficiency. II. Morphologic responses to LHRH immunoneutralization
hypogonadotropic-hypogonadism LHRH dog immunohypophysectomy testis prostate excurrent
2009/2/19
Morphologic changes in the male reproductive system of mongrel dogs immunized against LHRH were quantitated using linear measurements and morphometric techniques at the light-microscopic level. Two ...
Animal model of isolated gonadotropin deficiency. I. Hormonal responses to LHRH immunoneutralization
hypogonadotropic-hypogonadism luteinizing hormone releasing hormone pituitary serum LH
2009/2/19
Five intact male mongrel dogs, characterized by an episodic secretory pattern of LH and normal serum testosterone concentrations, were actively immunized against LHRH by subcutaneous injections of 2...
Abnormalities of the Hypothalamic—Pituitary—Leydig Cell Axis in Young Adult Rats with Vitamin A Deficiency
vitamin A deficiency (VAD) hypogonadism testosterone Leydig cell hypothalamus
2009/2/19
The hypothalamic concentration of gonadotrophin releasing hormone (GnRH), the in vivo pituitary responses to GnRH, and the in vivo Leydig cell responses to bovine luteinizing hormone (LH) and to end...
II. Characterization and development of the regional- and cellular-specific abnormalities in the epididymis of mice with beta-hexosaminidase A deficiency
II. Characterization regional- and cellular-specific abnormalities epididymis mice with beta-hexosaminidase A deficiency
2009/2/18
Beta-hexosaminidase (Hex) is a lysosomal enzyme that exists as two isoenzymes: Hex A (subunit structure alphabeta) and Hex B (betabeta). Its presence in the testis and epididymis suggests importan...
I. Abnormalities in cells of the testis, efferent ducts, and epididymis in juvenile and adult mice with beta-hexosaminidase A and B deficiency
cells testis efferent ducts epididymis adult mice beta-hexosaminidase A and B deficiency
2009/2/18
Beta-hexosaminidase (Hex) is a lysosomal enzyme that exists as two major isoenzymes: Hex A (subunit structure, alphabeta) and Hex B (betabeta). The presence of Hex in the testis and epididymis sug...
Deficiency of fucosidase results in acrosomal dysgenesis and impaired sperm maturation
Fucosidosis spermatogenesis epididymis dog
2009/2/17
Although a variety of glycosyltransferases and glycosidases have been implicated in spermatogenesis and posttesticular sperm maturation, the biological role of these enzymes in these processes is larg...
Vitamin E deficiency causes incomplete spermatogenesis and affects the structural differentiation of epithelial cells of the epididymis in the rat
Vitamin E structural differentiation epithelial cells epididymis rat
2009/2/17
The effects of vitamin E deficiency on the rat testis and epididymis were examined in a light- and electron-microscopic analysis. Various groups of animals were made vitamin E-deficient, beginning...
Prolonged Histamine Deficiency in Histidine Decarboxylase Gene Knockout Mice Affects Leydig Cell Function
Steroidogenesis human choriogonadotropin
2008/12/24
The present study focuses on histaminergic regulation of Leydig cell physiology, since limited information is available so far. To evaluate the dependency of Leydig cells on histamine (HA), we pe...
Influence of a Leptin Deficiency on Testicular Morphology, Germ Cell Apoptosis, and Expression Levels of Apoptosis-Related Genes in the Mouse
Spermatogenesis seminiferous tubules testis cytomorphometry micro array
2008/12/24
Leptin-deficient (ob/ob) male mice are morbidly obese and exhibit impaired reproductive function. The objective of this study was to assess the effect of a leptin deficiency on testicular morphology...
Adipocyte Accumulation in Penile Corpus Cavernosum of the Orchiectomized Rabbit: A Potential Mechanism for Veno-occlusive Dysfunction in Androgen Deficiency
Trabecular smooth muscle veno-occlusion fat-containing cells
2008/12/23
Androgens are deemed to be critical for the development, growth, and maintenance of penile tissue as well as for erectile function. Androgens are also reported to inhibit differentiation of stroma p...