Results: 11

Effects of Curcumin on Sodium Arsenite Induced Neoplastic Cell Transformation in Balb/c 3T3 Cells

HIGHLIGHTS Sodium arsenite can cause neoplastic transformation in cells. Curcumin reduced cell viability and increased LDH activity in transformed Balb/c 3T3 cells. Curcumin caused DNA damage in transformed Balb/c 3T3 cells. Curcumin may play a protective role in sodium arsenite-induced toxicity....

Lichen myxedematosus: a rare group of cutaneous mucinosis

An. bras. dermatol; 94 (4), 2019
Abstract: Cutaneous mucinoses are a heterogeneous group of dermatoses in which excess deposition of mucin in the dermis gives the skin a waxy appearance, with papules and plaques that can vary from self-healing mucinosis to even disrupting the normal shape of a patient's face, conferring a leonine facies...

Hyaluronic acid in tobacco-exposed rats. Inflammatory reaction, and duration of effect

Acta cir. bras; 34 (2), 2019
Abstract Purpose: To evaluate the hyaluronic acid (HA) inflammatory reaction, fibroblasts, fibrosis and duration of effect in the dorsal region of tobacco-exposed rats. Methods: Ten Wistar rats were divided into two groups: tobacco-exposed-group (TEG;n=5) and air-control-group (CG;n=5). The TEG animal...

The role of vitamin C in the gene expression of oxidative stress markers in fibroblasts from burn patients

Acta cir. bras; 33 (8), 2018
Abstract Purpose: To assess the action of vitamin C on the expression of 84 oxidative stress related-genes in cultured skin fibroblasts from burn patients. Methods: Skin samples were obtained from ten burn patients. Human primary fibroblasts were isolated and cultured to be distributed into 2 groups:...

Multiple dermatomyofibromas

An. bras. dermatol; 93 (2), 2018
Abstract: This study describes a case of a 19-year-old patient with seven asymptomatic lesions on the chest, measuring between 0.5 to 1cm in diameter, with no history of trauma in the region. The immunohistochemical evaluation was positive for vimentin and smooth muscle actin, determining Dermatomyofibro...

Effects of the application of the amniotic membrane in the healing process of skin wounds in rats

Acta cir. bras; 33 (2), 2018
Abstract Purpose: To evaluate the efficacy of the application of the human amniotic membrane (HAM) on the inflammatory process, fibroblast proliferation, formation of collagenand reduction of skin wound areas in rats. Methods: Thirty six rats were submitted to a surgical injury induction and divided ...

Mitochondrial proteomic profile of complex IV deficiency fibroblasts: rearrangement of oxidative phosphorylation complex/supercomplex and other metabolic pathways

Abstract: Background: Mitochondriopathies are multisystem diseases affecting the oxidative phosphorylation (OXPHOS) system. Skin fibroblasts are a good model for the study of these diseases. Fibroblasts with a complex IV mitochondriopathy were used to determine the molecular mechanism and the main affe...

DHEA and frontal fibrosing alopecia: molecular and physiopathological mechanisms

An. bras. dermatol; 91 (6), 2016
Abstract The transforming growth factor-beta 1 (TGFβ1) promotes fibrosis, differentiating epithelial cells and quiescent fibroblasts into myofibroblasts and increasing expression of extracellular matrix. Recent investigations have shown that PPAR (peroxisome proliferator-activated receptor*) is a ne...

Case for diagnosis. Lichen myxedematosus

An. bras. dermatol; 91 (6), 2016
Abstract Scleromyxedema or lichen myxedematosus is a rare papular mucinosis of chronic and progressive course and unknown etiology. It is commonly associated with monoclonal gammopathy and may show extracutaneous manifestations, affecting the heart, lung, kidney, and nerves. The diagnosis is based on fou...

Low intensity ultrasound therapy induces angiogenesis and persistent inflammation in the chronic phase of the healing process of third degree burn wounds experimentally induced in diabetic and non-diabetic rats

Acta cir. bras; 31 (7), 2016
ABSTRACT PURPOSE: To evaluate the effects of low intensity ultrasound on the healing process of third degree burn wounds in experimentally induced diabetic Wistar rats. METHODS: One hundred rats were divided into: control group; non-diabetic treated group; diabetic control group; diabetic treated group...