PubMed Health⌕ Search

SEARCH · PubMed Health

Results for “cortex”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 469 records · Page 26Linked to original sources

[Interrelationship between the quality of dietary protein and the function of the adrenal cortex. 3. Reactivity of the adrenal cortex and ACTH content of the pituitary gland of rats fed with proteins of various quality].

Trials were performed investigating the reactivity of the adrenals and the ACTH content of the pituitary gland in rats fed proteins of varying quality. A positive correlation was found to exist between the relative weight of the adrenals and the rate of body weight increases as well as between the weight of the pituitary gland and the rate of body weight gains. In either case this process was found to be primarily dependent on the quality of the dietary protein. It was shown that the quality of the dietary protein did not affect the in vitro reactivity of the adrenal glands. The ACTH content of the pituitary gland( determined on the basis of 100 mg of pituitary tissue) did not change considerably.

Adrenal Cortex↗

Organization of horizontal axons in the inferior temporal cortex and primary visual cortex of the macaque monkey.

We investigated the organization of horizontal connections at two distinct hierarchical levels in the ventral visual cortical pathway of the monkey, the inferior temporal (TE) and primary visual (V1) cortices. After injections of anterograde tracers into layers 2 and 3, clusters of terminals ('patches') of labeled horizontal collaterals in TE appeared at various distances up to 8 mm from the injection site, while in V1 clear patches were distributed only within 2 mm. The size and spacing of these patches in TE were larger and more irregular than those observed in V1. The labeling intensity of patches in V1 declined sharply with distance from the injection site. This tendency was less obvious in TE; a number of densely labeled patches existed at distant sites beyond weakly labeled patches. While injections into both areas resulted in an elongated pattern of patches, the anisotropy was greater in TE than in V1 for injections of a similar size. Dual tracer injections and larger-sized injections further revealed that the adjacent sites in TE had spatially distinct horizontal projections, compared to those in V1. These area-specific characteristics of the horizontal connections may contribute to the differences in visual information processing of TE and V1.

Animals↗

Regulation of renal cortex ammoniagenesis. I. Stimulation of renal cortex ammoniagenesis in vitro by plasma isolated from acutely acidotic rats.

We studied the acute renal metabolic response in rats made acidotic by a single oral dose of ammonium chloride. Cortical slices from acutely (2-h) acidotic rats utilized more glutamine and produced more ammonia and glucose from glutamine than slices from normal animals. When cortical slices from normal rats were pretreated in vitro with plasma isolated from acutely acidotic rats, they achieved similar increases in glutamine utilization, ammonia formation, and gluconeogenesis from glutamine. We did not observe such stimulation in normal cortical slices pretreated in a low pH-low bicarbonate medium. Our data show that a nondialysable factor is present in plasma from acutely acidotic rats that may be responsible for the early increase in the urinary ammonia observed in such animals.

Acidosis↗