Results: 723

Inhibitory effect of Astragalus polysaccharide on osteoporosis in ovariectomized rats by regulating FoxO3a /Wnt signaling pathway

Acta cir. bras; 34 (5), 2019
Abstract Purpose: To investigate inhibitory effect of Astragalus polysaccharide (APS) on osteoporosis in ovariectomized rats by regulating FoxO3a/Wnt2 signaling pathway. Methods: Postmenopausal osteoporosis (PMOP) animal model was developed by excising the bilateral ovaries of rats. The model rats we...

Oxidative stress assessment in intestine of newborn rats submitted to hypoxia and reoxygenation with tadalafil

Acta cir. bras; 34 (4), 2019
Abstract Purpose: To evaluate the functional and structural response of tadalafil effects in the intestinal mucosa, using an experimental model of hypoxia and reoxygenation injury in rats. Methods: The animals were divided into 4 groups: CTL, H/R, H/R+Td and M+Td. The newborn rats allocated in groups ...

Enemas with mesalazine increase the tissue contents of mucins in the colonic mucosa devoid of fecal stream

Acta cir. bras; 34 (4), 2019
Abstract Purpose: To evaluate the inflammatory reaction and measure the content of mucins, in the colonic mucosa without fecal stream submit to intervention with mesalazine. Methods: Twenty-four rats were submitted to a left colostomy and a distal mucous fistula and divided into two groups according t...

Effect of taxifolin on oxidative gastric injury induced by celiac artery ligation in rats

Acta cir. bras; 34 (4), 2019
Abstract Purpose: To examine the effect of taxifolin on I/R induced gastric injury in rats using biochemical and histopatholohical methods. Methods: Eighteen albino Wistar male rats equally grouped as; gastric I/R (I/R), 50 mg/kg taxifolin + gastric I/R (TAX+ I/R) and sham operation applied (SHAM). Is...

Análise do estresse oxidativo, reparo do DNA e alterações epigenéticas no líquen plano
Analysis of oxidative stress, DNA repair and epigenetic changes in lichen planus

O líquen plano (LP) é uma doença mucocutânea, inflamatória, imunologicamente mediada por linfócitos T citotóxicos (LTCD8+). Enquanto o líquen plano oral (LPO) é considerado uma lesão potencialmente maligna, o líquen plano cutâneo (LPC) é uma condição tipicamente autolimitada, sugerindo que...

Análise da patogênese da doença de Alzheimer: revisão narrativa da literatura

HU Rev. (Online); 45 (4), 2019
Introdução: A patogênese de doenças neurodegenerativas, como a doença de Alzheimer (DA), têm sido cada vez mais objeto de estudo em inúmeras pesquisas científicas. Objetivo: A presente revisão narrativa teve por objetivo descrever a contribuição de fatores como o estresse oxida...

Effect of wheatgrass on DNA damage, oxidative stress index and histological findings in diabetic rats

Int. j. morphol; 36 (4), 2018
This study was aimed to search the effect of wheatgrass on the Total Antioxidan (TAS)-Oxidan Status (TOS) and DNA damage in rat with diabetes. The rats used in the study were randomly divided into 4 groups that each of has 10 rats: Control group; 1 ml single dose phosphate-citrate buffer injected i.p (pH...

Vitamin E protects against hepatocyte ultrastructural damage induced by high fat diet in a rat model of pre-diabetes

Int. j. morphol; 36 (4), 2018
SUMMARY: We sought to investigate the potential protective effect of Vitamin E supplementation against hepatocyte ultrastructural alterations induced by high fat diet (HFD) in a rat model of pre-diabetes. Therefore, rats were either fed with HFD (model group) or a standard laboratory chow (control group)...

Oxidative stress in the bladder of men with LUTS undergoing open prostatectomy: a pilot study

Int. braz. j. urol; 44 (6), 2018
ABSTRACT Purpose: This study aims to evaluate the link between preoperative parameters and oxidative stress (OS) markers in the bladder wall of men undergoing open prostatectomy. Materials and Methods: From July 2014 to August 2016, men aged ≥ 50 years and presenting with LUTS were prospectively ...

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...