Search Results

You are looking at 1 - 2 of 2 items for

  • Author: B. K. LEWIS x
Clear All Modify Search
Free access

SALLY DEFAZIO, B. K. LEWIS and M. M. KETCHEL

Summary.

Immuno-electrophoretic analysis of human seminal plasma reveals minor but distinct differences in the antigenic components when the seminal plasma is obtained from different individuals. These differences exist primarily in those proteins of seminal plasma which do not occur in the blood, and are independent of ABO secretor status. The failure to detect some antigens in the seminal plasma of some individuals may be due not to their absence but to their low concentrations. Examination of several successive ejaculates collected within ½ to 2 hr from each of three donors indicated that variations were inter-individual rather than intra-individual in nature.

Free access

J. B. K. CLARK, E. F. GRAHAM, B. A. LEWIS and F. SMITH

Summary.

An investigation into the distribution of freely occurring polyhydric alcohols in normal bovine semen has revealed the presence of three previously unreported constituents, namely d-mannitol (17 mg/100 ml), erythritol (6·9 mg/100 ml) and glycerol (circa 2 mg/100 ml). These three polyols, together with inositol and sorbitol were characterized by the preparation of suitable derivatives. Where applicable, the physical constants of the crystalline materials and of their derivatives were determined.