EurekaMag.com logo
+ Site Statistics
References:
48,253,228
Abstracts:
22,798,842
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
Submit PDF Full TextSubmit PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Zinc, copper and selenium in reproduction


, : Zinc, copper and selenium in reproduction. Experientia (Basel) 50(7): 626-640

Of the nine biological trace elements, zinc, copper and selenium are important in reproduction in males and females. Zinc content is high in the adult testis, and the prostate has a higher concentration of zinc than any other organ of the body. Zinc deficiency first impairs angiotensin converting enzyme (ACE) activity, and this in turn leads to depletion of testosterone and inhibition of spermatogenesis. Defects in spermatozoa are frequently observed in the zinc-deficient rat. Zinc is thought to help to extend the functional life span of the ejaculated spermatozoa. Zinc deficiency in the female can lead to such problems as impaired synthesis/secretion of (FSH) and (LH), abnormal ovarian development, disruption of the estrous cycle, frequent abortion, a prolonged gestation period, teratogenicity, still-births, difficulty in parturition, pre-eclampsia, toxemia and low birth weights of infants. The level of testosterone in the male has been suggested to play a role in the severity of copper deficiency. Copper-deficient female rats are protected against mortality due to copper deficiency, and the protection has been suggested to be provided by estrogens, since estrogens alter the subcellular distribution of copper in the liver and increase plasma copper levels by inducing ceruloplasmin synthesis. The selenium content of male gonads increases during pubertal maturation. Selenium is localized in the mitochondrial capsule protein (MCP) of the midpiece. Maximal incorporation in MCP occurs at steps 7 and 12 of spermatogenesis and uptake decreases by step 15. Selenium deficiency in females results in infertility, abortions and retention of the placenta. The newborns from a selenium-deficient mother suffer from muscular weakness, but the concentration of selenium during pregnancy does not have any effect on the weight of the baby or length of pregnancy. The selenium requirements of a pregnant and lactating mother are increased as a result of selenium transport to the fetus via the placenta and to the infant via breast milk.

Order PDF Full Text

Close
Close

Click here to order any other PDF Full Text


Accession: 002549178

PMID: 8033970

DOI: 10.1007/bf01952862

PDF Full Text: Zinc, copper and selenium in reproduction


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Other references

Vettermann, C.; Schlissel, M.S., 2010: Allelic exclusion of immunoglobulin genes: models and mechanisms. The allelic exclusion of immunoglobulin (Ig) genes is one of the most evolutionarily conserved features of the adaptive immune system and underlies the monospecificity of B cells. While much has been learned about how Ig allelic exclusion is estab...

Gladstone, G.J.; Putterman, A.M.; Karesh, J., 1986: A new clamp for cicatricial entropion surgery. American Journal of Ophthalmology 102(4): 539-540

Cotterill E.G.; Owen P.G., 1989: Enhanced degradation in soil of tri allate and other carbamate pesticides following application of tri allate. Tri-allate degraded faster in soil from a site (T1) that had received 1.7 kg ha-1 of tri-allate annually for 23 years than in soil from an adjacent site (TO) that had received no pesticide application. Soil from the untreated site, which had been...

Goleby B.R.; Blewett R.S.; Reading A.M., 2006: Tomographic studies of the Yilgarn lithosphere. Record - Geoscience Australia Pages 108-127

Lund, E. E., 1968: Acquisition and liberation of Histomonas wenrichi by Heterakis galiinarum. Simultaneous infections with Histomonas wenrich* and Heterakis gallinae were established in 15 chickens and 7 turkeys in Maryland, U.S.A. In 6 chickens and 2 turkeys, at least one female H. gallinae developed eggs that transmitted Histomonas wenri...

Anonymous, 1952: Gazetteer of agricultural and forestry research stations in the British Commonwealth. This gazetteer, published for the first time, is a companion volume to the List of Research Workers in Agriculture and Forestry in the British Commonwealth. It has been compiled from material supplied by the governments, and provides particulars o...

Madhyastha K.M.; Bhattacharyya P.K., 1968: Microbiological transformations of terpenes xii fermentation of rho cymene by a soil pseudomonad pl strain. Indian Journal of Biochemistry 5(3): 102-111

Motoda, S., 1940: The environment and the life of massive reef coral, Goniastrea aspera Verrell, inhabiting the reef flat in Palao. Detailed comparative studies.

Braga, Aélica.de.Fátima.de.Assunção.; Munoz, D.Conceição.; Braga, F.Sarmento.da.Silva.; Araujo, D.Ribeiro.de.; Potério, Gória.Maria.Braga.; Mantovani, M., 2008: Influence of stimulus frequency on blockade induced by pancuronium and rocuronium: study on rats phrenic nerve-diaphragm preparation. To evaluate the influence of two stimulation frequencies on the installation of neuromuscular blockade produced by pancuronium and rocuronium on the rat diaphragm. Diaphragms were submitted to an indirect frequency stimulation of 0.1 and 1 Hz (Gro...

Allen, N.D.; Baird, D.M., 2009: Telomere length maintenance in stem cell populations. The maintenance of telomere length is essential for upholding the integrity of the genome. There is good evidence to suggest that telomere length maintenance in stem cell populations is important to facilitate the cell division required for tissue...