Results: 3070

Phytochemical analysis of hydroethanolic extract of Turnera diffusa Willd and evaluation of its effects on astrocyte cell death

Einstein (Säo Paulo); 14 (1), 2016
ABSTRACT Objective To evaluate the phytochemical composition of hydroethanolic extracts from powdered aerial parts of Turnera diffusa Willd (Turneraceae; T. diffusa), as well as its toxicity in astrocytes. Methods Chemical analyses of hydroethanolic extract from powdered aerial parts ofT. diffusa wer...

Alterations in the oxidative metabolism of Rhipicephalus (Boophilus) microplus ticks in response to exposure to the insect growth regulator fluazuron

Abstract Aiming to characterize the potential off-target effects of fluazuron on ticks, biochemical analyses were conducted to evaluate changes in the carbohydrate metabolism of Rhipicephalus (Boophilus) microplus ticks after exposure to fluazuron. Hemolymph and fat body were collected from female ticks ...

Primer registro de Talaromyces udagawae relacionado con cuerpos humanos en descomposición, en suelo de la Argentina
First record of Talaromyces udagawae in soil related to decomposing human remains in Argentina

Rev. argent. microbiol; 48 (1), 2016
The morphologic features of Talaromyces udagawae Stolk and Samson are here described and illustrated. This teleomorphic Ascomycota fungus was isolated from soil obtained in Buenos Aires province (Argentina) from beneath a human cadaver in an advanced state of decomposition. After washing and serial dilut...

Tolerancia de diez especies de diatomeas (Bacillariophyceae) a los factores físico-químicos del agua en el Río Sarapiquí, Costa Rica

Rev. biol. trop; 64 (1), 2016
ResumenLas diatomeas del bentos son el componente más estudiado del perifiton en los ríos de Costa Rica, sin embargo aún queda mucho por conocer sobre su ecología. Por eso en el presente estudio se analizó el perifiton en seis diferentes sitios en la cuenca medio del Río Sarapiquí en el 2010, 2011...

Occurrence and toxicity of Microcystis aeruginosa (Cyanobacteria) in the Paraná River, downstream of the Yacyretá dam (Argentina)

Rev. biol. trop; 64 (1), 2016
AbstractCyanobacteria constitute the main toxin producers in inland water ecosystems and have extensive global distribution. The presence of hepatotoxins in aquatic environments is hazardous to human and animal health; even though the presence and identification of hepatotoxic microcystins in rivers and ...

Lentinula edodes based GIS mapping, biometabolites and antiinflamatory activity of wild edible mushrooms from tropical 'sacred grove' forests of Meghalaya, India

Rev. biol. trop; 64 (1), 2016
AbstractThe biodiversity rich state of Meghalaya, India located in the realms of mega-biodiversity hotspots, is home to numerous species of wild edible macrofungi that are used extensively by the mycophillic ethnic population, as a part of their traditional cuisine and medicine systems. However, habitat ...

Histochemical differences along the intestine of Corydoras paleatus (Siluriformes: Callichthyidae)

Rev. biol. trop; 64 (1), 2016
AbstractThe Neotropical catfish Corydoras paleatus is a facultative air-breather and the caudal half of the intestine is involved in gas exchange. In South America, air-breathing fishes are found in tropical or sub-tropical freshwaters where the probability of hypoxia is high. The aim of this study was t...

Avaliação das características físico-químicas e sensoriais de doce de leite com lactose, de baixa lactose e sem lactose
Evaluation of physico-chemical and sensory characteristics of fresh milk with lactose

Hig. aliment; 30 (252/253), 2016
Existem vários produtos no mercado além do doce de leite tradicional, entretanto não há opções do doce de leite sem ou com reduzido teor de lactose. Observando que várias pessoas tem alergia ou intolerância à lactose e há uma certa escassez de produtos para atender tal público, este trabalho t...

Effects of epicatechin, a crosslinking agent, on human dental pulp cells cultured in collagen scaffolds

J. appl. oral sci; 24 (1), 2016
ABSTRACT Objective The purpose of this study was to investigate the biological effects of epicatechin (ECN), a crosslinking agent, on human dental pulp cells (hDPCs) cultured in collagen scaffolds. Material and Method To evaluate the effects of ECN on the proliferation of hDPCs, cell counting was per...

Efficacy of ultrasonic activation of NaOCl and orange oil in removing filling material from mesial canals of mandibular molars with and without isthmus

J. appl. oral sci; 24 (1), 2016
Objectives The aim of this study was to evaluate the volume of remaining filling material after passive ultrasonic irrigation (PUI) of sodium hypochlorite (NaOCl) and orange oil in mesial canals of mandibular molars, with and without isthmus. Material and Methods Thirty mesial roots of mandibular mola...