This study aimed to prepare the total saponins from Panax japonicus (TSPJ), and investigate their protective effects on learning memory ability of aging mice induced by D-galactose. The TSPJ product with content 81.03% was obtained. Fifty were randomly divided into control, model, low-, middle- high-dose groups. D-galactose-induced model established in Then, groups treated 20, 40 80 mg/kg gavag...

Abstract The mitochondrial F 1 O ‐ATPase in the presence of natural cofactor Mg 2+ acts as enzyme life by synthesizing ATP, but it can also hydrolyze ATP to pump H + . Interestingly, be replaced Ca , only sustain hydrolysis and not synthesis. When inserts torque generation built chemomechanical coupling between rotating central stalk was reported unable drive transmembrane flux within However, ...

homocysteine thiolactone was demonstrated to inhibit the growth of 10–12-day-old chicken embryo cardiac tissue explants at 7 × 10−9 −1 × 10−3 m concentrations in a dose-dependent manner. the maximal cardiotoxic effect of homocysteine thiolactone was detected at 1 × 10−3 m, which corresponds to severe hyperhomocysteinemia. the results of experiments on culturing of cardiac tissue explants in the...

The article considers the production of red blood cell “ghosts” and their application as a model for studying Na+, K+ - ATPase. Various variants liposomes are used test objects ion transport, but best biological membranes transport ATPase pumps «ghosts» cells. activity Na+/K+ is determined mainly in suspension “ghosts”. This due to need remove interfering compound – hemoglobin obtain that neces...

Cyprinus carpio is a stenohaline species but can tolerate some ranges of changes in environmental salinities, so histomorphological methods and Na+-K+ ATPase and Aquaporin 3 immunohistochemistry were performed on common carp kidney as an osmoregulatory organ in experimental groups and control in order to investigate their possible roles during salinity challenge. Five groups of fish (n=25) with...

The structure, ultrastructure and osmoregulatory function of the branchial chamber were investigated in Palaemon elegans (Rathke, 1837) by light microscope, electron microscope and immunohistochemistry methods, respectively. Each chamber possesses a branchiostegite, 3 epipodites and 8 phyllobranchiate gills. The lamellae are attached along the two outer surfaces of the triangular gill axis. Ult...

cyprinus carpio is a stenohaline species but can tolerate some ranges of changes in environmental salinities, so histomorphological methods and na+-k+ atpase and aquaporin 3 immunohistochemistry were performed on common carp kidney as an osmoregulatory organ in experimental groups and control in order to investigate their possible roles during salinity challenge. five groups of fish (n=25) with...

introduction: ouabaine is a well-known atrioventricular (av) node depressant agent, but its effects on functional properties of the av node have not been cleared. the aim of the present study was to determine how ouabaine administration modifies the rate-dependent properties of the av node. methods: selective stimulation protocols were used to quantify independently electrophysiological propert...