نتایج جستجو برای: d amino acids

تعداد نتایج: 886824  

Journal: :iranian journal of basic medical sciences 0
hamid abdollahi microbiology department, medical school, kerman university of medical sciences, kerman, iran omid tadjrobehkar microbiology department, medical school, kerman university of medical sciences, kerman, iran and basic sciences department, medical school , zabol university of medical sciences, zabol , iran

objective(s) motility plays a major role in pathogenicity of helicobacter pylori, yet there is  scarce data regarding its chemotactic behaviour. the present study was designed to investigate the chemotactic responses of local isolates of h. pylori towards various sugars, amino acids, as well as some other chemical substances. materials and methods chemotaxis was assayed by a modified adler’s me...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 1999
mohammad m. hashemi behnaz almasi

addition of potassium cyanide to a mixture of schiff base and lithium perchlorate afforded a-aminonitriles in high yields. addition of potassium cyanide to a methanolic solution of schiff base and phosphoric acid afforded a-aminonitriles. when the reaction mixture was refluxed it gave a-amino acids in high yields.

Journal: :nephro-urology monthly 0
keiji hirai division of nephrology, first department of integrated medicine, saitama medical center, jichi medical university, saitama, japan susumu ookawara division of nephrology, first department of integrated medicine, saitama medical center, jichi medical university, saitama, japan yoshiyuki morishita division of nephrology, first department of integrated medicine, saitama medical center, jichi medical university, saitama, japan; first department of integrated medicine, saitama medical center, jichi medical university, saitama, japan. tel: +81-486472111, fax: +81-486476831

sarcopenia and physical inactivity synergistically progress in patients with chronic kidney disease (ckd) and are strong predictors of mortality in this population. exercise training and essential amino acids and vitamin d supplements may contribute to improving sarcopenia and physical inactivity in ckd patients.

2016
Tomonori Kimura Kenji Hamase Yurika Miyoshi Ryohei Yamamoto Keiko Yasuda Masashi Mita Hiromi Rakugi Terumasa Hayashi Yoshitaka Isaka

D-Amino acids, the enantiomers of L-amino acids, are increasingly recognized as novel biomarkers. Although the amounts of D-amino acids are usually very trace in human, some of them have sporadically been detected in blood from patients with kidney diseases. This study examined whether multiple chiral amino acids would be associated with kidney functions, comorbidities, and prognosis of chronic...

2014
Gaosen Zhang Henry J. Sun

D-amino acids are toxic for life on Earth. Yet, they form constantly due to geochemical racemization and bacterial growth (the cell walls of which contain D-amino acids), raising the fundamental question of how they ultimately are recycled. This study provides evidence that bacteria use D-amino acids as a source of nitrogen by running enzymatic racemization in reverse. Consequently, when soils ...

Journal: :journal of physical & theoretical chemistry 2010
mehdi vadi marjan abbasi marjan zakeri bita jafari yazdi

in lb is research, adsorption of some amino acids and their complenation with manganese (ii) ion on carbonnanotube (mwcnt) by using of four relations langmuir, freundlich. temkin and harkins -jura imitherms wasinvestigated. from this relations. freudlich and temkin relations predict good equilibrium diagram in, isothermcondition. we could compute the theoretical constants by excel software. hy ...

Journal: :international journal of reproductive biomedicine 0
nourollah rezaei ri-cheng chian

background: addition of amino acids to the culture medium is beneficial for embryonic development in many species. objective: the objective of this study was to investigate the effects of amino acids on the in vitro maturation and embryonic development of the bovine oocyte. materials and methods: bovine ovaries were collected from a local abattoir and brought into laboratory. cumulus-oocyte com...

Journal: :Journal of bacteriology 2011
Allon I Hochbaum Ilana Kolodkin-Gal Lucy Foulston Roberto Kolter Joanna Aizenberg Richard Losick

Biofilms are communities of cells held together by a self-produced extracellular matrix typically consisting of protein, exopolysaccharide, and often DNA. A natural signal for biofilm disassembly in Bacillus subtilis is certain D-amino acids, which are incorporated into the peptidoglycan and trigger the release of the protein component of the matrix. D-amino acids also prevent biofilm formation...

Journal: :علوم دامی ایران 0
نجمه سادات روحانی دانش آموخته کارشناسی ارشد پرورش و تولید طیور دانشگاه تربیت مدرس محمد امیر کریمی ترشیزی استادیار گروه پرورش و تولید طیور دانشگاه تربیت مدرس مریم نیکخواه استادیار گروه نانوبیوتکنولوژی دانشگاه تربیت مدرس

lysozyme is one of the bioactive components of eggs with well known antibacterial potential, widely used in food industry, medicine and pharmaceutics. in this study, the possibility of quail’s egg lysozyme concentration and activity (modified via amino acids dietary supplementation) was investigated. in accordance with lysozyme amino acids profile, four amino acids of: asparagine, arginine, gly...

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