Results: 3070

Evaluation of nutritional composition of flour residue of mangaba processing

Braz. j. biol; 83 (), 2023
Abstract Among several fruits, mangaba (Hancornia speciosa Gomes), it aroused the interest of producers and consumers due to its attractive sensory characteristics and health beneficial properties (high nutritional value and presence of bioactive substances), thus, this work evaluates the nutritional fac...

Arbuscular mycorrhizal fungi activity in the rhizosphere of tree seedlings subjected to residual herbicides

Braz. j. biol; 83 (), 2023
Abstract Trees occurring on the margins of agricultural areas can mitigate damage from residual herbicides. Rhizospheric microbial activity associated with trees is one of the main remedial capacity indicators. The objective of this study was to evaluate the rhizospheric microbiological activity in tree ...

Dimethyl acetamide and dimethyl sulfoxide associated at glucose and egg yolk for cryopreservation of Pseudoplatystoma corruscans semen

Neotrop. ichthyol; 21 (1), 2023
This study aimed to develop a protocol for the cryopreservation of Pseudoplatystoma corruscans semen. For this, mature males were hormonally induced with a single dose of carp pituitary extract (5 mg/kg body weight). Semen was collected and evaluated. Two cryoprotectants were tested to compose the diluen...

Reaction mechanisms of flavins and flavoproteins from an electronic-structure perspective

Proteins equipped with flavin adenine dinucleotides (FAD) or flavin mononucleotides (FMN) are named flavoproteins and constitute about 1% of all existing proteins. They catalyze redox, acid-base and photochemical reactions in a variety of biochemical phenomena that goes from energy metabolism to DNA repa...

Fisiología respiratoria: fisiología del surfactante pulmonar

El proceso de respiración y el intercambio gaseoso requiere la interacción de variadas fuerzas en los distintos tejidos y órganos involucrados. La tensión superficial a nivel alveolar provocaría colapso de dichas estructuras de no ser por las características del surfactant...

Astragaloside IV alleviates stroke-triggered early brain injury by modulating neuroinflammation and ferroptosis via the Nrf2/HO-1 signaling pathway

Acta cir. bras; 38 (), 2023
Purpose: Stroke is an acute cerebrovascular disease. Astragaloside IV (AS-IV) is an active ingredient extracted from Astragalus membranaceus with an established therapeutic effect on central nervous system diseases. This study examined the neuroprotective properties and possible mechanisms of AS-IV in st...

Conteúdo energético do leite humano administrado em recém nascidos prematuros

Objetivo: avaliar e comparar o conteúdo energético do leite humano cru e do leite humano processado de recém-nascidos pré-termo. Método: foram coletadas 68 amostras de leite por meio de ordenha manual e o processamento foi realizado no Banco de Leite Humano. O valor energético foi obtido por meio d...

Tipos de partos y niveles de oxitocina, cortisol y hormonas tiroideas en plasma del cordón umbilical

Introducción: La placenta sintetiza y secreta varias hormonas que permiten la regulación del embarazo, el trabajo de parto y la adaptación metabólica materno-fetal. Su comportamiento asociado al tipo de parto puede dar información relevante sobre efectos epigenéticos. Objetivo: Describir el tipo de...

Eficacia y seguridad de una alternativa a la terapia hormonal de la menopausia: extracto purificado de polen

Los síntomas vasomotores (SVM) se encuentran entre los síntomas más comunes de la transición a la menopausia. Más del 70% de las mujeres de mediana edad informan SVM en algún momento durante la transición a la menopausia, y para un tercio de las mujeres los SVM son muy frecuentes o graves. Muchas ...

Potential of Tetradenia riparia leaf essential oil and its fractions in controlling Aedes aegypti and Rhipicephalus microplus larvae

Biosci. j. (Online); 39 (), 2023
Tetradenia riparia (Hochst.) Codd (Lamiaceae) is a shrub, commonly known as ginger bush or false myrrh, and several studies have shown that T. riparia exhibits a variety of biological properties. This study aimed to determine the chemical composition of T. riparia essential oil and its fractions, investi...