High-protein diets shorten lifespan in many organisms. Is it because protein digestion is energetically costly or because the final products (the amino acids) are harmful? To answer this question while circumventing the life-history trade-off between reproduction and longevity, we fed sterile ant workers on diets based on whole proteins or free amino acids. We found that (i) free amino acids sh...

Plasma amino acids were analysed in patients with migraine with (9) and without (80) aura, in patients with tension headache (14) and in controls (62). The neuroexcitatory amino acids glutamic acid, glutamine, glycine, cysteic acid and homocysteic acid were elevated in migraine patients while total thiols (cysteine/cystine) were reduced. Patients with tension headache had values which were simi...

Five different species of Crotalaria were analysed for their proximate and mineral composition, protein fractions, amino acid profile of total seed proteins, fatty acid profile of seed lipids, in vitro protein digestibility vitamins (niacin and ascorbic acid) and certain anti-nutritional factors. The major findings of the study were as follows: crude protein content ranged from 12.50 27.12%, cr...

a thin-layer chromatography method has been developed and evaluated for the separation and determination of lysine and methonine in a mixture of amino acids obtained from acid or enzyme hydrolysis of protein. the solvent systems were (a) ethanol-ether, (b) phenol-water, (c) ethyl methyl ketone-pyridine-distilled water-glacial acetic acid. procedures in all the three stages were in the same dime...

All genome sequence data contains inherent information in it. Shannon's uncertainty theory can be used to measure how much information a sequence has. Here we show that the amount of information in sequences from metagenomes correlates with the number of similar sequences that will be found by comparison to databases of known sequences. Hence, a sequence with more information (higher uncertaint...

background: hepatitis b virus (hbv) gene and protein variations are frequently been seen in chronic patients. the aims of study were to determine the genotypes as well as the patterns of variations distribution in chronically-infected patients from the central part of iran. methods: the surface gene was amplified, sequenced and subsequently aligned using international and national iranian datab...

background: this study aims to evaluate the efficacy of silybum marianum seeds (smss) on blood biochemical profile of broiler chickens contaminated with aflatoxin b1 (afb1).  methods: combinations of three levels of afb1 (0, 250 and 500 ppb) with three levels of smss (0, 0.5, and 1.0 %) were incorporated into the basal diet (corn and soybean meal). the effect of nine experimental treatments was...

The results of the assessment amino acid profile longest muscle back Kemerovo breed pigs and its two-breed three-breed crosses with commercial breeds are presented. largest amount acids is found in meat purebred animals comparison two- threebreed animals. In terms content such as phenylalanine, aspartic acid, serine, glutamic significantly exceeded hybrids. It was shown that studied groups for ...

the aim of this study was to investigate the processing methods of sorghum grain and diet formulation on performance and nutrients digestibility in broilers. three hundred and twenty chicks at eight day of age were allotted into eight groups of four replicate with ten chicks per replicate. this research was conducted as completely randomized design arranged in a 2 × 2 × 2 factorial experiment u...