Results: 8

Subthalamic Nucleus: Neuroanatomical Review

Arq. bras. neurocir; 39 (4), 2020
Discovered in 1865 by Jules Bernard Luys, the subthalamic nucleus is a set of small nuclei located in the diencephalon, inferior to the thalamus and superior to the substantia nigra, that can be visualized in a posterior coronal section. Histologically, it consists of neurons compactly distributed and fi...

Intermittent hypoxia, brain glyoxalase-1 and glutathione reductase-1, and anxiety-like behavior in mice

Objective: Sleep apnea has been associated with anxiety, but the mechanisms of the sleep apnea-anxiety relationship are unresolved. Sleep apnea causes oxidative stress, which might enhance anxiety-like behavior in rodents. To clarify the apnea-anxiety connection, we tested the effect of intermittent hypo...

The preventive effects of ascorbic acid supplementation on locomotor and acetylcholinesterase activity in an animal model of schizophrenia induced by ketamine

An. acad. bras. ciênc; 89 (2), 2017
ABSTRACT Studies have shown that schizophrenic patients seem to have nutritional deficiencies. Ascorbic acid (AA) has an important antioxidant effect and neuromodulatory properties. The aim of this study was to evaluate the effects of AA on locomotor activity and the acetylcholinesterase activity (AChE) ...

Effects and molecular mechanism of chitosan-coated levodopa nanoliposomes on behavior of dyskinesia rats

Biol. Res; 49 (), 2016
BACKGROUND: Chitosan, the N-deacetylated derivative of chitin, is a cationic polyelectrolyte due to the presence of amino groups, one of the few occurring in nature. The use of chitosan in protein and drug delivery systems is being actively researched and reported in the literature RESULTS: In this study...

Growth of cell populations of the intralobular duct in the submandibular gland of the mouse during postnatal development

Pesqui. odontol. bras; 16 (4), 2002
O crescimento de populaçäo de células dos ductos intercalares, ductos estriados e túbulos granulares convolutos de glândulas submandibulares do camundongo durante o período de 14 a 84 dias de vida pós-natal, foi avaliada por métodos morfométricos. Os dados de número absoluto de células em cada...

Histochemical fiber types of oesophageal striated muscle in synbranchus marmoratus (Bloch, 1795-pisces, synbranchidae)

Rev. chil. anat; 12 (1), 1994
Las características histoquímicas de la musculatura externa en el esófago de Synbranchus marmoratus, han sido evidenciadas notándose que no existe una división nítida entre las capas musculares circular externa e interna. Las fibras que integran estas capas se caracterizan por tener una actividad o...

Unilateral striatal grafts induce behavioral and electrophysiological asymmetry in rats with bilateral kainate lesions of the caudate nucleus

Rats (n=11) with bilateral kainate lesions of the caudate nucleus and subsequen unilateral transplantation of embryonic striatal tissue into the damaged area prefered 4 months later to reach for food with the forepaw contralateral to the graft. No such asymmetry was observed in lesioned, nontransplanted ...