INACTIVATION OF α- AND β-CHYMOTRYPSIN BY INTACT HYMENOLEPIS DIMINUTA (CESTODA)

Effect of age of the intermediate host Tribolium confusum (Coleoptera) on infection by Hymenolepis diminuta (Cestoda).

A cross-sectional study of 27 cohorts of Tribolium confusum aged 2-78 wk was done to examine effects of host age on exposure to eggs of Hymenolepis diminuta under standardized conditions. Pre-exposure, fasting, and postexposure mortality were low, sex ratio was equal, and fecundity of hosts was high during the first 30 wk, followed by increasing mortality and male bias of the sex ratio, and dec...

Therapeutic efficacy of Zanthoxylum rhetsa DC extract against experimental Hymenolepis diminuta (Cestoda) infections in rats.

Zanthoxylum rhetsa DC (Rutaceae), commonly called prickly ash, is used in the folk medicine of Naga tribes in India as a deworming remedy. In the present study, the therapeutic efficacy of Z. rhetsa leaf extract was investigated against experimental Hymenolepis diminuta (Cestoda) infections in albino rats. The efficacy of extract was determined on the basis of reduction in the eggs per gram of ...

Studies on Malic Enzyme from Hymenolepis Diminuta

Differential glucose incorporation into glycogen by Hymenolepis diminuta.

1. A differential incorporation of 14C-glucose into two distinct molecular weight fractions of glycogen from the tapeworm Hymenolepis diminuta has been observed. Changes in these labeling patterns as a function of the glycogen level have been examined. 2. After incubation of Hymenolepis diminuta in media containing 14C-glucose under steady state conditions of glycogen metabolism, the specific a...

Inactivation of chymotrypsin by diphenyldiazomethane.

a-Chymotrypsin is a protein composed of three peptide chains linked by disulfide bridges, with amino-terminal half-cystine, isoleucine, and alanine residues.1 The latter two end groups appear upon the enzymic conversion of chymotrypsinogen A (which only contains the amino-terminal half-cystine residue) to a-chymotrypsin. The specificity of a-chymotrypsin as an enzyme (and of other chymotrypsins...