نتایج جستجو برای: β

تعداد نتایج: 177470  

Human Interferon β (INF-β) is a member of cytokines family which different studies have shown its immunomodulatory and antiviral activities. In this study an expression vector was designed and constructed for expression of human INF-β-1b either in shake flasks and bench top bioreactor. The designed vector was constructed based upon pET-25b(+) with T7 promoter. Recombinant human beta interferon ...

Journal: :iranian journal of catalysis 2015
jasem aboonajmi malek taher maghsoodlou nourallah hazeri mojtaba lashkari mohyeddin safarzaei

fecl3.6h2o was used as an efficient catalyst for the synthesis of highly functionalized piperidines via a one-pot five-component reaction of aromatic amines, aromatic aldehydes and β-keto esters in etoh at room temperature. the remarkable advantages offered by this method are good yields, simple procedure, short reaction times, no need to column chromatography and easy work-up. the structures o...

Journal: :journal of medical bacteriology 0
farzin khorvash 1 isfahan university of medical sciences, nosocomial infection research center, isfahan, iran. mohammad reza yazdani 2 isfahan university of medical sciences infectious diseases and tropical medicine research center, isfahan, iran. shiva shabani 1 isfahan university of medical sciences, nosocomial infection research center, isfahan, iran. houri alizadeh 3 islamic azad university, science and research branch, shiraz, iran.

background :    pseudomonas aeruginosa is a severe challenge for antimicrobial therapy, because of chromosomal mutations or exhibition of intrinsic resistance to various antimicrobial agents such as most β-lactams. we undertook this study to evaluate the existence of sme, aim and vim metallo-beta lactamases encoding genes among p. aeruginosa strains isolated from icu patients in al-zahra hospit...

Journal: :iranian biomedical journal 0
majid motovali-bashi tayyebeh ghasemi

background: &beta-thalassemia; is the most common monogenic disorder in human. the (ct) polymorphism at -158 upstream region of the &gammag-globin; gene and pharmacological factors such as hydroxyurea have been reported to influence &gamma-globin; gene expression and the severity of clinical symptoms of &beta-thalassemia.; methods: in the present study, 51 &beta-thalassemia; intermediate patie...

Journal: :international journal of hematology-oncology and stem cell research 0
fakher rahim toxicology research center, ahvaz university of medical sciences, ahvaz, iran. hossein allahmoradi general practitioner, shahid beheshti university of medical sciences, tehran, iran. fatemeh salari research center of thalassemia & hemoglobinopathy, ahvaz jundishapur university of medical sciences, ahvaz, iran. mohammad shahjahani department of hematology and blood banking, school of medical sciences, tarbiat modares university, tehran, iran. ali dehghani fard sarem cell research center- scrc, sarem women's hospital, tehran, iran. seyed ahmad hosseini department of nutrition, allied health sciences school, ahvaz jundishapur university of medical sciences, ahvaz, iran.

potent induction of fetal hemoglobin (hbf) production results in alleviating the complications of β-thalassemia and sickle cell disease (scd). hbf inducer agents can trigger several molecular signaling pathways critical for erythropoiesis. janus kinase/signal transducer and activator of transcription (jak/stat), mitogen activated protein kinas (mapk) and phosphoinositide 3-kinase (pi3k) are con...

Journal: :iranian journal of pharmaceutical sciences 0
vipul p patel shri b. m. shah college of pharmaceutical education and research, modasa, gujarat, india natvarlal m patel shri b. m. shah college of pharmaceutical education and research, modasa, gujarat, india

glipizide has been found to form inclusion complexes with β-cyclodextrin (β-cd) in solution and in solid state. the present study was undertaken to determine a suitable method for scaling up glipizide-β-cd inclusion complex formation and to evaluate the effect of some parameters on the efficiency of complexation. the solid inclusion complexes of glipizide and β-cd were prepared at a molar ratio...

During recent years, there was growing demand in using microalga valuable products such as β-carotene in health care. β-Carotene has anti-cancer and anti-aging properties for human. In Dunaliella salina cells, β-carotene has a major protecting role for biomolecules, when the production of reactive oxygen species elevated. In the present study, we investigated the influence of the four most effe...

Journal: :Applied sciences 2023

β-N-acetylhexosaminidases have great potential in applied biocatalysis owing to their ability act on a wide range of natural and modified substrates. In this work, from four Penicillium crustosum strains (PcHex) were studied. The production showed the highest enzymatic activity culture medium after 11–14 days cultivation. specific isolated purified PcHex hydrolysis 4-nitrophenyl-N-acetyl-β-D-ga...

Journal: :International Journal of Evaluation and Research in Education 2021

<p><span>The research purpose was to conduct an empirical investigation into students’ use behavior of e-learning tools during the COVID-19 pandemic, a case study higher educational institutions in Thailand. The applied UTAUT2 theoretical model. Primary data collected using structured questionnaire from total 1,493 students across learning Structural equation modelling (SEM) conduct...

پایان نامه :دانشگاه بین المللی امام خمینی (ره) - قزوین - دانشکده فنی 1392

آنزیم gtp سیکلوهیدرولاز i، واکنش تبدیل gtp را به دی¬هیدرونئوپترین تری فسفات و اسید فورمیک کاتالیز می¬کند. این واکنش اولین مرحله در بیوسنتز تتراهیدروفولات در گیاهان و میکروارگانیسم¬ها و همچنین بیوسنتز تتراهیدروبیوپترین در پستانداران می¬باشد. در این تحقیق، پس از استخراج rna کل از بافت¬های مختلف گیاه انگور (vitis vinifera l.) رقم عسکری و سپس سنتز cdna، ژن vvgtpch i، با استفاده از تکنیک واکنش زنجیر...

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