نتایج جستجو برای: sertoli cells

تعداد نتایج: 1384697  

Journal: :journal of reproduction and infertility 0

background: the sertoli cells in the testis create unique and safe environment to protect seminiferous tubules from auto antigens and invading pathogens. these cells produce the survival factor of the blood-testis barrier and produce special materials such as androgen binding proteins and contribute to the coordinated action of spermatogenesis. given that the sertoli cells play an essential rol...

Journal: :international journal of reproductive biomedicine 0
tayebeh rastegar mehryar habibi roudkenar soraya parvari maryam baazm

background: sertoli cells play a pivotal role in creating microenvironments essential for spermatogonial stem cells (sscs) self-renewal and commitment to differentiation. maintenance of sscs and or induction of in vitro spermiogenesis may provide a therapeutic strategy to treat male infertility. objective: this study investigated the role of luekemia inhibitory factor (lif) on the propagation o...

Journal: :international journal of reproductive biomedicine 0
fatemeh kheradmand issa nourmohammadi mohamad amin ahmadi-faghih mohsen firoozrai mohammad hossein modarressi

background: the impact of cadmium (cd) on male infertility may be related to the interaction with metal-binding proteins known as metallothioneins (mts). trace elements like zinc (zn) have protective effects on testicular damage induced by cd. objective: we determined the effect of zn and low-dose cd pre-treatment on the expression of mt1 and mt2 genes on testicular sertoli cells. materials and...

Journal: :iranian biomedical journal 0
فاطمه خردمند fatemeh kheradmand عیسی نورمحمدی issa nourmohammadi محمد حسین مدرسی mohammad hossein modarressi محسن فیروزرای mohsen firoozrai محمد امین احمدی فقیه mohammad amin ahmadi-faghih

background: zinc (zn) as an important trace element is essential for testicular development and spermatogenesis. molecular mechanism of zn action in the reproductive system may be related to metal binding low-molecular weight proteins, metallothioneins (mt). our objective was to determine the effect of zn on two important isoforms of mt, mt1m and mt1g genes expression on testicular sertoli cell...

Journal: :cell journal 0

introduction: morphology and ultra-structure of myoid and sertoli cells were studied in patients with non-obstructive azoospermia who were admitted to testicular sperm extraction (tese) and intracytoplasmic sperm injection (icsi), by transmission electron microscopy (tem). materials and methods: 12 biopsies of testicular tissues from patients with non-obstructive azoospermia referred to royan i...

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 ...

A Mohseni Meybodi F Sangsefidi M Sabbaghian, MA Sadighi Gilani, P Mokhtari

Background Sertoli cells located in seminiferous tubular basement membrane and surrounds different types of germ cell and they were only somatic cell type that directly contacts germ cells. These cells have Several role like support activities, nutrition of germ cells.During spermatogenesis, expression of SOX3 is necessary for differentiation of spermatogonia A. SOX3 is a transcription factor, ...

Fatemeh Mansouri Karim Nayernia Mahdi Dianatpour Mohammad Hossein Modarressi* Mohammad Miryounesi

  Objective(s): Sertoli cells support in vivo germ cell production; but, its exact mechanism has not been well understood. The present study was designed to analyze the effect of Sertoli cells in differentiation of mouse embryonic stem cells (mESCs) to germ cells.   Materials and Methods: A fusion construct composed of a Stra8 gene promoter and the coding region of enhanced green fluorescence p...

Journal: :iranian journal of basic medical sciences 0
mohammad miryounesi department of medical genetics, school of medicine, tehran university of medical sciences, tehran, iran karim nayernia geneocell, advanced molecular & cellular technologies, montreal, canada mahdi dianatpour department of medical genetics, school of medicine, shiraz university of medical sciences, shiraz, iran fatemeh mansouri department of medical genetics, school of medicine, tehran university of medical sciences, tehran, iran mohammad hossein modarressi* department of medical genetics, school of medicine, tehran university of medical sciences, tehran, iran

objective(s): sertoli cells support in vivo germ cell production; but, its exact mechanism has not been well understood. the present study was designed to analyze the effect of sertoli cells in differentiation of mouse embryonic stem cells (mescs) to germ cells.   materials and methods: a fusion construct composed of a stra8 gene promoter and the coding region of enhanced green fluorescence pro...

Amaral L Lucas T Porto C Quintas LE,

Background: Novel roles for the interaction of cardiotonic steroids to Na+/K+-ATPase have been established in recent years. The aim of the present study was to investigate the intracellular signaling events downstream the action of ouabain on Na+/K+-ATPase in Sertoli cell obtained from immature rats. Treatment of Sertoli cells with ouabain (1 μM) induced a rapid and transient increase in the ex...

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