نتایج جستجو برای: cell

تعداد نتایج: 1683865  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - پژوهشکده علوم زیستی 1387

کارسینومای سلول های بازال (basal cell carcinoma) یکی از شایع ترین نوع سرطان های پوست غیر ملانومایی انسانی محسوب می شود که مانند دیگر سرطان ها کل زندگی شخص مبتلا را تحت تاثیر خود قرار می دهد. با مطالعه فاکتور های پروتینی آن و شناسایی بیشتر تغییراتی که در روند سرطانی شدن پوست رخ می دهد می توان در روند پیشگیری و درمان، به بیماران کمک موثری نمود. مواد و روش ها: نمونه های بافت سرطانی و سالم از بیما...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم پایه 1390

تست تک پیل سوختی یکی از معتبر ترین روش ها برای ارزیابی لایه کاتالیست و مجموعه الکترود و غشا می باشد به گونه ای که برای اعتبار سنجی عملکرد لایه کاتالیست مرحله ای ضروری محسوب می شود. بدین منظور، meaها ی تهیه شده از لایه کاتالیسـت های بهبـود داده شده، توسط تسـت تک پیل سوختی (single cell) ارزیابی می شوند. برای این کار از دو روش متفاوت برای بهبود لایه کاتالیست استفاده شد. در یک روش از پراکندگی تک مر...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی مهندسی 1388

ترکیبات فنلی موادی هستند که در آنها یک حلقه آروماتیک مستقیماً به یک یا چند گروه هیدروکسیل متصل باشد. یکی از مهم ترین این ترکیبات هیدروکینون می باشد که کاربرد گسترده ای در صنایع عکاسی، آرایشی و بهداشتی، لاستیک سازی، آنتی اکسیدان و تولید ترکیبات شیمیایی و کشاورزی دارد و به دلیل وجود در فاضلاب صنایع مذکور و داشتن اثرات سمیت، استفاده از سیستم تصفیه ای کارآمد برای حفظ محیط زیست امری لازم و اجتناب ناپ...

Journal: :iranian journal of pathology 2014
shahram sabeti farhad malekzad nastaran neishaboori mihan pourabdollah toutkaboni farahnaz bidarizerehpoosh

background & objectives:  cd10 is a cell surface enzyme with metalloendopeptidase activity, also known as common acute lymphoblastic leukaemia antigen, which mainly serves as a marker for acute lymphoblastic leukemia (all). to date and to the best of our knowledge, only few comparative immunohistochemical studies have assessed cd10 expression in cutaneous epithelial neoplasms. our goal was ...

Journal: :international journal of molecular and cellular medicine 0
haleh akhavan-niaki cellular and molecular biology research center, babol university of medical sciences, babol, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (babol university of medical sciences) reza youssefi kamangari genetic laboratory of amirkola children hospital, babol university of medical sciences, babol, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (babol university of medical sciences) ali banihashemi - genetic laboratory of amirkola children hospital, babol university of medical sciences, babol, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (babol university of medical sciences) vahid kholghi oskooei cellular and molecular biology research center, babol university of medical sciences, babol, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (babol university of medical sciences) mandana azizi genetic laboratory of amirkola children hospital, babol university of medical sciences, babol, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (babol university of medical sciences) ahmad tamaddoni non-communicable pediatric diseases research center, babol university of medical sciences, babol, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (babol university of medical sciences)

alpha thalassemia (α-thal) is relatively common worldwide. most carriers are defective in either one or two alpha globin genes out of four functional ones, with deletions being more common than point mutations. the hematologic features are very important for the selection of the appropriate molecular tests while determining the genotype. the aim of this study was to compare hematologic features...

Journal: :international journal of molecular and cellular medicine 0
christian jorgensen université montpellier1, montpellier, france. danièle noël université montpellier1, montpellier, france.

multipotent mesenchymal stromal cells or mesenchymal stem cells (mscs) are mainly isolated from bone marrow or fat tissue. because of their potential of multilineage differentiation towards bone, cartilage and fat tissue, they were initially evaluated to develop innovative strategies for tissue engineering applications. more recently, they have gained interest based on their immunomodulatory pr...

Journal: :international journal of molecular and cellular medicine 0
neda moazzezy molecular biology unit, pasteur institute of iran, pasteur ave. 13164 tehran, iran.سازمان اصلی تایید شده: انستیتو پاستور ایران (pasteur institute of iran) mana oloomi molecular biology unit, pasteur institute of iran, pasteur ave. 13164 tehran, iran.سازمان اصلی تایید شده: انستیتو پاستور ایران (pasteur institute of iran) saeid bouzari molecular biology unit, pasteur institute of iran, pasteur ave. 13164 tehran, iran.سازمان اصلی تایید شده: انستیتو پاستور ایران (pasteur institute of iran)

shiga toxins (stxs) are bacterial virulence factors produced by shigella dysenteriae serotype 1 and escherichia coli strains. stxs are critical factors for the development of diseases such as severe bloody diarrhea and hemolytic uremic syndrome. additionally, stxs trigger the secretion of pro- inflammatory cytokines and chemokines, particularly in monocytes or macrophages. the inflammatory cyto...

Journal: :acta medica iranica 0
bagher minaee zanganeh department of anatomical sciences, school of medicine, tehran university of medical sciences, tehran, iran. tayebeh rastegar department of anatomical sciences, school of medicine, tehran university of medical sciences, tehran, iran. mehryar habibi roudkenar research center, iranian blood transfusion organization (ibto), tehran, iran. iraj ragerdi kashani department of anatomical sciences, school of medicine, tehran university of medical sciences, tehran, iran. fardin amidi department of anatomical sciences, school of medicine, tehran university of medical sciences, tehran, iran. farid bolhasani department of anatomical sciences, school of medicine, tehran university of medical sciences, tehran, iran.

spermatogonial stem cells (sscs) maintain spermatogenesis throughout life in the male. maintenance of sscs and induction of spermiogenesis in vitro may provide a therapeutic strategy to treat male infertility. this study investigated in vitro differentiation of mouse sscs in presence or absence of sertoli cells, hormones and vitamins. spermatogonial populations were enriched from testes of 4-6 ...

Journal: :journal of dentistry, tehran university of medical sciences 0
mr. baghaban eslaminejad associate professor, department of stem cell and developmental biology, royan institute for stem cel s. vahabi assistant professor, department of periodontics, school of dentistry, shahid beheshti university of m. shariati dentist, department of periodontics, faculty of dentistry, shahid beheshti university, tehran, iran h. nazarian developmental biology, department of stem cell and developmental biology, royan institute for stem c

objective: by date investigations have indicated the presence of stem cells within the pulp tissue of both temporary and permanent human teeth. in the present study, these stem cells were compared in terms of their growth kinetics and culture requirements. materials and methods: stem cells within the pulp of the human third molar (permanent tooth) and the deciduous incisor (temporary tooth) wer...

Journal: :iranian journal of basic medical sciences 0
mohammad husein abnosi biology department, faculty of sciences, university of arak, arak, iran malek soleimani mehranjani biology department, faculty of sciences, university of arak, arak, iran mohammad ali shariatzadeh biology department, faculty of sciences, university of arak, arak, iran leila dehdehi biology department, faculty of sciences, university of arak, arak, iran

objective(s)para-nonylphenol (p-np) is used in many industries and our previous study showed that p-np causes a reduction in rats bone marrow mesenchymal stem cells (mscs) viability. the aim of this study was to investigate the effect of p-np on osteogenic differentiation of mscs.materials and methodsmscs were isolated and expanded to 3rd passage, then cultured in dmem supplemented with osteoge...

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