Relationship of administered dose to blood venom levels in mice following experimental envenomation by Russell's viper (Vipera russelli) venom.

I125 labelled Russell's viper venom was administered i.m. into mice at various doses.

Endemic goitre in lowland Burma.

The problem of endemic goitre in Burma was thought to be confined to hilly regions and therefore goitre control programme has been focussed on these areas only. However, sporadic evidences accrued that there might also be pockets of endemic goitre in low-lying areas of the country. Goitre surveys and indepth study were carried out to determine the magnitude and nature of endemic goitre in lowland Burma.

Isotopic exchange in 59Fe labeled rice-based meals.

The process of isotopic exchange between extrinsic 59Fe tracer and native nonheme Fe in a rice-based meal was studied by performing Sephadex G-50 column chromatography of soluble supernatant of (1) 59Fe-labeled meal after in vitro pepsin digestion and (2) duodenal aspirate obtained from a human subject fed a similarly labeled meal. The elution patterns of radioactivity and chemically determined nonheme Fe differed markedly when the supernatant of in vitro digested meal at pH 1.8 was analyzed, whereas the patterns were similar when pH was adjusted to 6.