Effect of dietary zinc deficiency on alkaline phosphatase and nucleic acids in rats.

Weanling male albino rats were randomly alloted to zinc deficient fed (ZnDF) pair-fed (ZnPF) or ad libitum-fed (ZnAL) dietary treatments. The rats were fed diets with either low (5 micrograms/g) or adequate (100 micrograms/g) zinc for 28 days. Zinc deficiency significantly reduced growth rate by 60% and was associated with a significantly low feed intake when compared with ZnPF and ZnAL groups.

Erythrocyte membrane digoxin-sensitive (Na(+)-K+)-ATPase of non-insulin dependent diabetic humans.

Erythrocyte plasma membranes of non-insulin dependent diabetic humans (NIDDM) and healthy humans were prepared by hypotonic lysis. The specific activity of (Na(+)-K+)-ATPase of NIDDM membranes, both in the absence and presence of digoxin were lower than the specific activity of normal enzymes (83.6 percent and 74.

Partial purification of a boar sperm membrane protein inducing sperm agglutinating antibody.

For the development of immunological contraception, attention is being concentrated on the possibility of using a sperm membrane antigen. Boar sperm membrane was extracted with triton-X 100 and fractionated by Sephadex G-150 column chromatography. The glycosylated and nonglycosylated portions of protein peaks from the gel filtration were obtained by fractionating on concanavalin A-Sepharose and eluting the bound protein with 0.