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Whole-body vibration therapy does not improve the peripheral nerve regeneration in experimental model.
J Musculoskelet Neuronal Interact
March 2021
Post graduation Program in Neuroscience, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Rio Grande do Sul, Brazil.
Objectives: Whole-body vibration (WBV) is commonly used to improve motor function, balance and functional performance, but its effects on the body are not fully understood. The main objective was to evaluate the morphometric and functional effects of WBV in an experimental nerve regeneration model.
Methods: Wistar rats were submitted to unilateral sciatic nerve crush and treated with WBV (4-5 weeks), started at 3 or 10 days after injury.
Biochemical parameters of Spodoptera frugiperda (J. E. Smith) treated with citronella oil (Cymbopogon winterianus Jowitt ex Bor) and its influence on reproduction.
Acta Histochem
May 2016
Department of Morphology and Physiology Animal, Rural Federal University of Pernambuco, Av. Dom Manoel de Medeiros, s/n, Dois Irmãos, 52171-900 Recife, PE, Brazil. Electronic address:
Spodoptera frugiperda is the principal corn pest in Brazil. Searches for new control methods that minimize the adverse effects of synthetic insecticides have initiated a resurgence of the use of botanical insecticides. Citronella oil (a product of Cymbopogon winterianus) is an effective repellent and insecticide.
View Article and Find Full Text PDFThyroidal inhibition following diverse stress in soft-shelled turtle, Lissemys punctata punctata bonnoterre.
Acta Biol Hung
December 2008
Histophysiology Laboratory, Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Calcutta 700 019, India.
The current study was undertaken to ascertain the effects of diverse stress on thyroid activity in soft-shelled turtles, Lissemys punctata punctata. The findings revealed that starvation (10 days), dehydration (10 days) or exposure to electric shock (12 volts for 15 seconds at an interval of 30 min for 3 h) caused significant decrease in the body weight (except in electric shock), relative weight, peripheral and central epithelial heights of the follicles and peroxidase activity of the thyroid gland of turtles. The degree of change in the values of these parameters was nearly same in all the stress experiments, indicating that there is not much difference in the degree of thyroid responses to diverse stress in turtles.
View Article and Find Full Text PDFRoles of thyroid, adrenal and pancreatic hormones on thyroid activity of the soft-shelled turtles Lissemys punctata punctata Bonnoterre.
Folia Biol (Krakow)
February 2007
Histophysiology Laboratory, Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Calcutta 700 019, India.
The effects of some exogenous peripheral hormones (thyroxine, corticosterone, epinephrine, norepinephrine and insulin) on thyroid activity were investigated in juvenile female soft-shelled turtles, Lissemys punctata punctata. Each hormone was injected in three different doses (25 microg, 50 microg or 100 microg each per 100 g body weight, once daily at 9 AM) for 10 consecutive days. Thyroid activity was evaluated by gravimetry, histology (epithelial height) and thyroperoxidase assay.
View Article and Find Full Text PDFDifferential effects of 2,3,7,8-tetrachlorodibenzo-p-dioxin, bis(tri-n-butyltin) oxide and cyclosporine on thymus histophysiology.
Crit Rev Toxicol
July 1997
Laboratory for Medicines and Medical Devices, National Institute of Public Health, Bilthoven, The Netherlands.
Recent advances in the histophysiology of the normal thymus have revealed its complex architecture, showing distinct microenvironments at the light and electron microscopic level. The epithelium comprising the major component of the thymic stroma is not only involved in the positive selection of thymocytes, but also in their negative selection. Dendritic cells, however, are more efficient than epithelial cells in mediating negative selection.
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