more interesting stuff
Congenital Malformations Resulting from Zinc Deficiency in Rats
http://ebm.rsmjournals.com/content/123/3/692.abstractA mild but specific zinc deficiency was produced in female rats by the use of a purified diet lacking the element and by stringent elimination of sources of zinc contamination from the environment. Almost all of the full-term fetuses produced under such conditions showed gross congenital malformations encompassing a wide variety of organ systems, including skeletal, brain, eye, heart, lung, and urogenital defects. The fetuses from zinc-deficient females contained less zinc than did their controls, suggesting that the congenital anomalies resulted from a direct effect of lack of zinc in the fetal tissues.
Congenital malformations of the central nervous system in rats produced by maternal zinc deficiency
http://onlinelibrary.wiley.com/doi/10.1 ... 7/abstractTeratogenic effects of maternal zinc deficiency in rats have been observed, confirming previous reports. The deficient diet differed in several re-spects from that used by Hurley and coworkers but the results were essentially the same. Special attention was given to malformations of the central nervous system and to tissue anomalies not recognizable by gross inspection of the fetuses.
Experimental Congenital Hydrocephalus
http://content.karger.com/ProdukteDB/pr ... tNr=235290A review was made of experimental methods available to produce congenital hydrocephalus by teratogenic methods. Radiation, infections, trypan blue, hypervitaminosis A, salicylates and nutritional deficiencies were considered. In the course of prenatal zinc deficiency experiments, congenital hydrocephalus was frequently encountered and histologic sections were made of many representative specimens. Details of the findings are described, among them various types of aqueduct stenosis or obliteration. Although these anomalies suggest that occlusion of the aqueduct is the cause of the enlargement of the ventricular system it was noted that there was also ventricular dilatation caudal to the stenotic point of the aqueduct. Hydrocephalus without aqueductal stenosis has also been observed in experimental animals. It seems possible that some cases of congenital hydrocephalus attributed to aqueductal stenosis are examples of hydrocephalus with secondary block of the aqueduct.
Maternal zinc status: a determination of central nervous system malformation
http://onlinelibrary.wiley.com/doi/10.1 ... x/abstractMaternal serum zinc concentrations were estimated during 244 normal pregnancies and 15 abnormal pregnancies. The serum zinc concentrations were lower in the anencephalic pregnancies than in the normal control subjects.
Possible roles of zinc nutriture in the fetal origins of disease
http://www.sciencedirect.com/science/ar ... 6507002288Risk of diseases of metabolism such as atherosclerosis and adult onset diabetes mellitus is increased by fetal malnutrition. Deficiencies of micronutrients essential for methylation are believed to contribute to the phenomenon in part through epigenetic abnormalities. Zinc is one of the nutrients essential for the epigenome. Because the worldwide prevalence of zinc deficiency is at least 20% (JL: by 'normal' standards), fetal zinc deficiency is common. We suggest fetal zinc deficiency contributes to the pathogenesis of metabolic diseases in adults. In support of our thesis, research in experimental models and humans established the essentiality of zinc at all stages of intrauterine and infant life. Experiments in rodents and/or non-human primates found that fetal and/or suckling zincdeficiency impairs neuropsychological functions of progeny and that the effects persist in spite of nutritional rehabilitation. In addition, maternal zincdeficiency in mice is reported to impair immunity of progeny; effects persist in spite of nutritional rehabilitation into the next generation. We suspect that zinc deficiency is a far greater human health problem than is generally recognized.
EXACTLY!!!!!
Login
Register
FAQ
Search
easy lunch tomo!
