نتایج جستجو برای: epithelial cells
تعداد نتایج: 1431539 فیلتر نتایج به سال:
Using microscale topographic patterns to guide fibroblasts and epithelial cells form topological defects in monolayers, we examine behaviors dependent on cell type as well charge.
piwil2، متعلق به خانواده piwi/argonate، پروتئینی است که از طریق مسیر سیگنالینگstat3/bcl-xl باعث مهار اپوپتوز و القاء تکثیر می شود و در تنوع وسیعی از فرایندهای سلولی از جمله خودبازسازی سلول های بنیادی زایا دخیل می باشد. بیان اکتوپیک piwil2 که در شرایط فیزیولوژیکی به صورت عمده تنها در بیضه پستانداران قابل مشاهده است، در بسیاری از سرطان ها محرز شده است و در مراحل مختلف سرطان پستان به ویژه در سلول ...
Surface epithelial tumors constituted 65.7% of all the ovarian tumors. Brenner tumors are a type of surface epithelial tumors that constitute 1 % to 3% of all ovarian neoplasms. The average age of presentation of Brenner tumors is about age 50 and 7 I % of the patients are over 40. Most patients are asymptomatic but abnormal uterine bleeding is the most common presenting symptom. Associated end...
background: gastric cancer (gc) is widely associated with chronic inflammation. the pro inflammatory microenvironment provides conditions that disrupt stem/progenitor cell proliferation and differentiation. the signal transducer and activator of transcription- 3 (stat3) signaling pathway is involved in inflammation and also contributes to the maintenance of embryonic stem cell (escs) pluripoten...
Background: Nitric Oxide (NO) is a very important signaling molecule which acts as a regulator of many physiological processes in many tissues including epithelial cell of gastrointestinal tract. In this study we investigated the effects of L-Arginine as a NO progenitor and L-NAME as a NO inhibitor on epithelial cell number and height of Jejunum in female rats. Materials and methods: 40 female...
helicobacter pylori (h. pylori) is classified as a class i carcinogen. the low infection rate seen in developed countries (8.9%) compared with a high infection rate (52%-98%) in developing countries indicates a strong association between infection prevalence and socioeconomic status. adhesion of h. pylori to gastric epithelial cells is an important aggressive factor. one of the genes that encod...
organization of various cells lining the olfactory mucosa of puntius ticto (hamilton, 1822) were described by light as well as scanning electron microscopy. the paired olfactory chambers located antero-dorsal to the eyes and communicated outside through anterior and posterior nasal openings. the oval shaped olfactory rosette lied at the bottom of chamber and composed of 18-20 lamellae arranged ...
Background and purpose: Amniotic membrane (AM) is a proper candidate for vascular tissue engineering. The aim of this study was to evaluate the hemocompatibility of the epithelial surface of the AM. Materials and methods: In this study, we assessed the effects of the epithelial surface of the AM on blood coagulation system by measuring activated partial thromboplastin time (aPTT), prothromb...
Epithelial cells are important in the regeneration of oral mucosal tissue. The cell source is commonly derived from tissue biopsy, which obtained through surgery. Stem human exfoliated deciduous teeth (SHED) were demonstrated to differentiate into multiple types. As it can be readily available teeth, induced and become a potential epithelial for study. This study aims examine mixture growth fac...
background: considerable attention is focused on effects of electromagnetic field (emf) and its increasing use in everyday life. appliances and various equipments are sources of electromagnetic fields with a wide-range of technical characteristics. objective: in this study we investigated the effect of emf (50 hz, 0.5 mt) on epididymis and deferens duct in mice. materials and methods: 30 balb/c...
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