Background and Aims: Amino acids have different effects on the growth of some dermatophytes. Some may increase whereas others maydecrease their growth. The concentration of some amino acids is also an important factor for their effects. Materials and Methods: To investigate the effects of L-amino acids on the growth of six species of dermatophytes including Epidermophyton floccosum, Microspor...

To characterize acidic amino acid transport in type 2 astrocytes, we established conditionally immortalized rat astrocyte cell lines (TR-AST) from newly developed transgenic rats harboring temperature-sensitive SV40 large T-antigen gene. TR-AST exhibited positive immunostaining for anti-GFAP antibody and A2B5 antibody, characteristics associated with type 2 astrocytes, and expressed glutamine s...

the dependence on ionic strength of protonation of l-aspartic acid and its complexation withdioxouranium(vi) is reported in sodium perchlorate solution as a background salt. the measurementshave been performed at 25 ± 0.1 °c and various ionic strengths in the range 0.1 to 1.0 mol dm-3, using acombination of potentiometric and spectrophotometric techniques. the overall analysis of the present an...

We have investigated dissolution and surface reaction of calcite and aragonite in amino acid solutions of L-glutamic (L-glu) and L-aspartic acid (L-asp) at weak acidity of above pH 3. The surface reactions of calcite and aragonite were related with the dissolution. Calcite was dissolved in both solutions but the dissolution was limited by an adsorption of Ca-carboxylate salt. Aragonite was neit...

securigera securidaca (l.) degen & dorfl grows in different parts of iran. the seeds of the species are used in iranian folk medicine as an anti-diabetic agent. many studies have established hypoglycemic effects of amino acids and in the present investigation, amino acids of securigera securidaca seeds have been evaluated. the ground seeds were extracted using petroleum ether, hot ethanol a...

The aim of the present study is to quantify the amount of aspartic acid in Coccinia indica crude drug, lab extract and commercial extract by HPTLC method. The stationary phase was precoated aluminium silica gel G F 254 Plates. The mobile phase for aspartic acid was n-Butanol: Glacial acetic Acid: Water (50: 10: 40). The methanolic solution of standard aspartic acid (1 mg/ ml concentration) 5 μl...

Quality feed in aquaculture is very important to increase the growth and health of fish. Low efficiency can be overcome by supplementation using catalytic enzymes. One enzymes that stimulate digestion protease red ginger plants. The enzyme plants plays a role breaking peptide bonds place carboxyl groups so peptides are formed from complex compounds into simpler compounds. This study aims determ...

Previous work from this laboratory demonstrated that hadacidin (N-formylhydroxyaminoacetate) inhibited the biosynthesis & luwo of adenylic acid in Ehrlich ascites tumor and rat liver cells. This effect, which was shown to be due to the inhibition of adenylosuccinate synthetase (IMP : L-aspartate ligase (1))) was competitively reversed by L-aspartate (2, 3). The structural similarity between asp...

It was first demonstrated by Kidd (4) in 1953 that the growth of certain lymphosarcomas of rats and mice could be suppressed by treatment with guinea pig serum. In 1961, Broome (1) identified the lymphosarcoma-inhibitory factor as the enzyme L-asparagine aminohydrolase, EC 3.5.1.1 (L-asparaginase). Recently, Kidd and Sobin (5) showed that lymphosarcoma 6C3HED cells growing intraperitoneally in ...