Results: 3070

Natural decomposition of hornbeam wood decayed by the white rot fungus Trametes versicolor

An. acad. bras. ciênc; 89 (4), 2017
ABSTRACT The impacts of white-rot fungi on altering wood chemistry have been studied mostly in vitro. However, in vivo approaches may enable better assessment of the nature of interactions between saprotrophic fungi and host tree in nature. Hence, decayed and sound wood samples were collected from a natu...

Evaluation of phenolic compounds and lipid-lowering effect of Morus nigra leaves extract

An. acad. bras. ciênc; 89 (4), 2017
ABSTRACT Morus nigra L. (Moraceae) is a tree known as black mulberry and the leaves are used in folk medicine in the treatment of diabetes, high cholesterol and menopause symptoms. The aim of this study was to evaluate the M. nigra leaves phytochemical profile in different extractions and the hypolipidem...

In vitro antiparasitic activity and chemical composition of the essential oil from Protium ovatum leaves (Burceraceae)

An. acad. bras. ciênc; 89 (4), 2017
ABSTRACT Leishmaniasis and trypanosomiasis are globally widespread parasitic diseases which have been responsible for high mortality rates. Since drugs available for their treatment are highly hepatotoxic, nephrotoxic and cardiotoxic, adherence to therapy has been affected. Thus, the search for new, more...

Chemical Composition and Antibacterial Activity of the Essential Oil of Vitex agnus-castus L. (Lamiaceae)

An. acad. bras. ciênc; 89 (4), 2017
ABSTRACT Abnormal multiplication of oral bacteria causes dental caries and dental plaque. These diseases continue to be major public health concerns worldwide, mainly in developing countries. In this study, the chemical composition and antimicrobial activity of the essential oil of Vitex agnus-castus lea...

Bioethanol production with different dosages of the commercial Acrylamide polymer compared to a Bioextract in clarifying sugarcane juice

An. acad. bras. ciênc; 89 (4), 2017
ABSTRACT One of the most important steps is to clarify the juice, which are added synthetic polymer acrylamide base, aiming the fast settling of impurities present in the juice. However, this input is expensive and may have carcinogenic and neurotoxic actions to humans. The search for new natural floccul...

Global and gene-specific DNA methylation and hydroxymethylation in human skin exposed and not exposed to sun radiation

An. bras. dermatol; 92 (6), 2017
Abstract: Background: epigenomes can be influenced by environmental factors leading to the development of diseases. Objective: To investigate the influence of sun exposure on global DNA methylation and hydroxymethylation status and at specific sites of the miR-9-1, miR-9-3 and MTHFR genes in skin sampl...

Protective effect of Allium cepa (onion) seeds (AC) extract on histopathology of testis in STZ-induced male rats

Int. j. morphol; 35 (4), 2017
SUMMARY: The aim of the present study was to evaluate the effect of the extract of Allium cepa (Onion) seeds (AC) on morphometric and histology of testis and biochemical parameters in STZ-induced male rats. Forty adult male Wistar rats (2 month old) were allocated into four groups of control, diabetic co...

Oxidative state of ewes with different number of parity during gestation and lactation

Pesqui. vet. bras; 37 (12), 2017
This study was conducted to assess the changes in some indicators of oxidative status during pregnancy and lactation in sheep of different parity. Dorset x Suffolk ewes were classified by number of parity: 1, 2 and ≥4. They were sampled before pregnancy and on the first, second, third, and fourth month...

Utilização de escore e dosagem de lactato no líquor para diagnóstico diferencial entre meningite bacteriana e meningite asséptica

Rev. paul. pediatr; 35 (4), 2017
RESUMO Objetivo: Avaliar o Escore para Meningite Bacteriana (EMB) isolado e associado ao valor do lactato no líquor para diferenciar meningite bacteriana (MB) e meningite asséptica (MA). Métodos: Foram selecionadas crianças com meningite atendidas em hospital terciário privado entre janeiro de 2...