Results: 772

Fatores solúveis de células-tronco mesenquimais (FS-CTM) como uma ferramenta potencial para reduzir a inflamação nos pulmões de doadores após choque hipovolêmico

J. bras. pneumol; 47 (4), 2021
RESUMO Objetivo A escassez de pulmões viáveis ainda é um grande obstáculo para o transplante. As vítimas de trauma, que constituem potenciais doadores de pulmão, comumente apresentam choque hipovolêmico que acarreta inflamação e deterioração pulmonar e rejeição após o transplante. Buscando...

Sensitization with Eustrongylides sp. (Nematoda: Dioctophymatidae) antigens induce production of specific IgG and IgE in murine model

Abstract Fish consumption plays an important role in human diet. Hoplias malabaricus, commonly known as traíra, is a freshwater fish widely appreciated in several Brazilian states and frequently infected by Eustrongylides sp. fourth-instar larvae (L4). The aim of the present study was to evaluate allerg...

6-hydroxydopamine and ovariectomy has no effect on heart rate variability parameters of females

Clinics; 76 (), 2021
OBJECTIVES: In addition to the classic motor symptoms of Parkinson's disease (PD), patients also present with non-motor symptoms, such as autonomic dysfunction, which is present in almost 90% of patients with PD, affecting the quality of life and mortality. Regarding sex differences in prevalence and pre...

Rapid and long-lasting antidepressant-like effects of ketamine and their relationship with the expression of brain enzymes, BDNF, and astrocytes

Braz. j. med. biol. res; 54 (2), 2021
Ketamine (KET) is an N-methyl-D-aspartate (NMDA) antagonist with rapid and long-lasting antidepressant effects, but how the drug shows its sustained effects is still a matter of controversy. The objectives were to evaluate the mechanisms for KET rapid (30 min) and long-lasting (15 and 30 days after) anti...

Modeling of post-traumatic epilepsy and experimental research aimed at its prevention

Braz. j. med. biol. res; 54 (2), 2021
Research on the prevention of post-traumatic epilepsy (PTE) has seen remarkable advances regarding its physiopathology in recent years. From the search for biomarkers that might be used to indicate individual susceptibility to the development of new animal models and the investigation of new drugs, a gre...

Cardiac and renal effects of liver cirrhosis in a growing animal model

Acta cir. bras; 36 (8), 2021
ABSTRACT Purpose: To assess the biochemical, histological, histomorphometric and molecular effects of biliary duct ligation (BDL) induced liver cirrhosis in the heart and kidneys. Methods: Thirty-two weaning rats (21 days old, 50-70 g) underwent BDL and were divided in four groups (euthanasia after two...

Punica granatum and amygdalin extracts plus cobalamin combined with albendazole reduce larval burden and myositis in experimental trichinosis

Abstract Trichinellosis is a zoonosis results from eating raw or semi-cooked meat of infected animals. Medicinal plants have been used lately as alternatives and/or combined therapies to resolve some drawbacks of the current regimens. This work analyzed the effect of albendazole monotherapy on Trichinell...

Inhibition of CXCR2 alleviates the development of abdominal aortic aneurysm in Apo E-/- mice

Acta cir. bras; 36 (1), 2021
ABSTRACT Purpose To investigate the relationship between atherosclerotic abdominal aortic aneurysm (AAA) and CXC chemokine receptor type 2 (CXCR2). Methods Mouse AAA model was established by embedding angiotensin-II pump (1000 ng/kg/min) in ApoE-/- mice. Mice were received SB225002, a selective CXCR2 a...

DNMT1-mediated PPARα methylation aggravates damage of retinal tissues in diabetic retinopathy mice

Biol. Res; 54 (), 2021
BACKGROUND: Peroxisome proliferator-activated receptor alpha (PPARα) is associated with diabetic retinopathy (DR), and the underlying mechanism is still unclear. Aim of this work was to investigate the mechanism of PPARα in DR. METHODS: Human retinal capillary pericytes (HRCPs) were treated with high g...

Structural and functional alterations in heart and skeletal muscle following severe TAC in mice: impact of moderate exercise training

Biol. Res; 54 (), 2021
BACKGROUND: Heart failure (HF) is the leading cause of death in western countries. Cardiac dysfunction is accompanied by skeletal alterations resulting in muscle weakness and fatigue. Exercise is an accepted interventional approach correcting cardiac and skeletal dysfunction, thereby improving mortality,...