Zinc metabolism in testicular feminization and surgical cryptorchid testes in rats. 1983

W Y Chan, and K W Chung, and J M Bates, and M LeBlanc, and L A Tease, and G E Griesmann, and O M Rennert

Rats with testicular feminization (Tfm) had been reported to have a testis specific zinc deficiency. In this report it is demonstrated that this organ specific zinc deficiency was not corrected by intraperitoneal zinc administration. Normal littermates on the other hand showed a positive testicular response to zinc administration. The increased testicular zinc level in control animals returned to normal 1 week after the zinc treatment probably due to the fast turnover of this element in the testis. Not only surgically induced cryptorchidism but also surgical cryptorchidism and epididymodeferentectomy (to simulate Tfm conditions in normal adult rats) caused a drastic reduction in testicular zinc level. Unlike in Tfm rats, however, the decrease in zinc content in operated animals was not accompanied by a corresponding decrease in alkaline phosphatase activity. Zinc concentration and alkaline phosphatase activity in plasma or other organs were not affected by the surgical procedure. The testicular copper content in the operated animals was higher than that of the unoperated controls.

UI MeSH Term Description Entries
D008297 Male Males
D003300 Copper A heavy metal trace element with the atomic symbol Cu, atomic number 29, and atomic weight 63.55. Copper-63,Copper 63
D003456 Cryptorchidism A developmental defect in which a TESTIS or both TESTES failed to descend from high in the ABDOMEN to the bottom of the SCROTUM. Testicular descent is essential to normal SPERMATOGENESIS which requires temperature lower than the BODY TEMPERATURE. Cryptorchidism can be subclassified by the location of the maldescended testis. Testis, Undescended,Abdominal Cryptorchidism,Bilateral Cryptorchidism,Cryptorchidism, Unilateral Or Bilateral,Cryptorchism,Inguinal Cryptorchidism,Testes, Undescended,Undescended Testis,Unilateral Cryptorchidism,Cryptorchidism, Abdominal,Cryptorchidism, Bilateral,Cryptorchidism, Inguinal,Cryptorchidism, Unilateral,Undescended Testes
D000469 Alkaline Phosphatase An enzyme that catalyzes the conversion of an orthophosphoric monoester and water to an alcohol and orthophosphate. EC 3.1.3.1.
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013734 Androgen-Insensitivity Syndrome A disorder of sexual development transmitted as an X-linked recessive trait. These patients have a karyotype of 46,XY with end-organ resistance to androgen due to mutations in the androgen receptor (RECEPTORS, ANDROGEN) gene. Severity of the defect in receptor quantity or quality correlates with their phenotypes. In these genetic males, the phenotypic spectrum ranges from those with normal female external genitalia, through those with genital ambiguity as in Reifenstein Syndrome, to that of a normal male with INFERTILITY. Testicular Feminization,AR Deficiency,Androgen Insensitivity Syndrome,Androgen Insensitivity, Partial,Androgen Receptor Deficiency,Androgen Resistance Syndrome,Androgen-Insensitivity Syndrome, Complete,Androgen-Insensitivity Syndrome, Partial,DHTR Deficiency,Dihydrotestosterone Receptor Deficiency,Male Pseudohermaphroditism Due to Androgen Insensitivity,Reifenstein Syndrome,Reifenstein's Syndrome,Testicular Feminization Syndrome,AR Deficiencies,Androgen Insensitivities, Partial,Androgen Insensitivity Syndrome, Complete,Androgen Insensitivity Syndrome, Partial,Androgen Insensitivity Syndromes,Androgen Receptor Deficiencies,Androgen Resistance Syndromes,Androgen-Insensitivity Syndromes,Androgen-Insensitivity Syndromes, Complete,Androgen-Insensitivity Syndromes, Partial,Complete Androgen-Insensitivity Syndrome,Complete Androgen-Insensitivity Syndromes,DHTR Deficiencies,Deficiencies, AR,Deficiencies, Androgen Receptor,Deficiencies, DHTR,Deficiencies, Dihydrotestosterone Receptor,Deficiency, AR,Deficiency, Androgen Receptor,Deficiency, DHTR,Deficiency, Dihydrotestosterone Receptor,Dihydrotestosterone Receptor Deficiencies,Feminization Syndrome, Testicular,Feminization Syndromes, Testicular,Feminization, Testicular,Feminizations, Testicular,Insensitivities, Partial Androgen,Insensitivity Syndrome, Androgen,Insensitivity Syndromes, Androgen,Insensitivity, Partial Androgen,Partial Androgen Insensitivities,Partial Androgen Insensitivity,Partial Androgen-Insensitivity Syndrome,Partial Androgen-Insensitivity Syndromes,Receptor Deficiencies, Androgen,Receptor Deficiencies, Dihydrotestosterone,Receptor Deficiency, Androgen,Receptor Deficiency, Dihydrotestosterone,Reifensteins Syndrome,Resistance Syndrome, Androgen,Resistance Syndromes, Androgen,Testicular Feminization Syndromes,Testicular Feminizations
D013737 Testis The male gonad containing two functional parts: the SEMINIFEROUS TUBULES for the production and transport of male germ cells (SPERMATOGENESIS) and the interstitial compartment containing LEYDIG CELLS that produce ANDROGENS. Testicles,Testes,Testicle
D015032 Zinc A metallic element of atomic number 30 and atomic weight 65.38. It is a necessary trace element in the diet, forming an essential part of many enzymes, and playing an important role in protein synthesis and in cell division. Zinc deficiency is associated with ANEMIA, short stature, HYPOGONADISM, impaired WOUND HEALING, and geophagia. It is known by the symbol Zn.
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus

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