Nonlinearity exists in intracochlear pressure responses close to the cochlea's sensory tissue. Its characteristics are much like those of basilar membrane motion nonlinearity. Here several aspects of the pressure nonlinearity in the base of the gerbil cochlea are illustrated.

Gustatory transduction mechanisms for sucrose and amino acid sweeteners in gerbil taste cells were studied with Ca2+ imaging and whole cell recording techniques. A 100 mM sucrose stimulus with Ca2+ increased the intracellular Ca2+ concentration ([Ca2+]i) in sweet-sensitive taste cells of the taste bud, but the sucrose stimulus without Ca2+ did not change the [Ca2+]i. A 10 mM D-phenylalanine swe...

Two correlational studies were undertaken to explore the relationship between the sex ratio of the pups that a female Mongolian gerbil gestated and her behavior, morphology, and hormone levels late in pregnancy. In the first study, we found that the change in sex ratio between the first and second litters that a female gerbil delivered and the change in her frequency of scent marking late in he...

Abstract We examine possible ways of functional adjustment morphologically similar alimentary tracts in rodents with different dietary specializations. study the structure stomach and gut epithelial surface as well features its colonization microorganisms five gerbil species: Psammomys obesus, Meriones crassus, Gerbillus henleyi, G. andersoni , dasyurus . Data on morphological diversity mucosa-...

We have sequenced serum albumin cDNA from liver of the Mongolian gerbil, Meriones unguiculatus. The deduced amino acid sequence showed 82.6% and 73.6% identity with the corresponding proteins from rats and humans, respectively. Identical cDNA was detected in pancreas by reverse transcription followed by polymerase chain reaction (RT-PCR). Further amplification of cDNA by nested PCR revealed the...

In the stress fibers of two types of nonmuscle cells, epithelia (PtK2, bovine lens) and fibroblasts (Gerbil fibroma, WI-38, primary human) the spacing between sites of alpha-actinin localization differs by a factor of about 1.6 as determined by indirect immunofluorescence and ultrastructural localization with peroxidase-labeled antibody. Both methods reveal striations along the stress fibers wi...

BACKGROUND The role of the renin-angiotensin system in gastric physiology and disease has as yet been sparsely explored. The first aim of the study was to investigate the baseline presence and location of angiotensin II receptors (AT1R and AT2R) in the stomach of the Mongolian gerbil. A second aim was to elucidate whether the presence of H. pylori infection is associated with changes in the exp...

The aim of this study was to evaluate the pharmacological effect of EGb761 on the dynamic alterations of magnesium (Mg) and energy metabolites including glucose and lactate in brain cortex of gerbil during focal cerebral ischemia. A single dose of EGb761 (100 mg/kg, i.p.) was given 30 min prior to cerebral ischemic surgery. Cerebral ischemia was induced by occlusion of the right middle cerebral...

No protective antigens from Entamoeba histolytica have been previously defined. We tested the ability of the galactose-specific adherence lectin of E. histolytica to elicit a protective immune response in conjunction with Freund's incomplete and complete adjuvants. The gerbil (Meriones unguiculatus) model of an experimental amebic liver abscess was used. Gerbils were immunized intraperitoneally...