نتایج جستجو برای: ژنهای p53
تعداد نتایج: 43557 فیلتر نتایج به سال:
p53 and pcna expression in keratocystic odontogenic tumors compared with selected odontogenic cysts summary: the aim of this study was to evaluate p53 and pcna expression in different odontogenic lesions regarding their different clinical behaviors. slices prepared from 94 paraffin-embedded tissue blocks (25 radicular cysts (rc), 23 dentigerous cysts (dc), 23 keratocystic odontogenic tumors (kc...
curcumin is a natural substance with anti-cancerous properties without many disadvantages of currently-used anticancer drugs. its toxicity is significantly higher in tumor cells compared with normal cells. we hypothesized the difference of p53 function between normal and tumor cells as one of the presumable causes of this phenomenon. we knocked down the expression of p53 in normal fibroblasts u...
introduction : pancreatic cancer has not been well studied, especially in developing countries. materials and methods : we studied the variations in genetic mutations in pancreatic adenocarcinoma between moroccan and egyptian populations. the molecular pathology of 30 tumors from a large hospital in casablanca, morocco were examined and compared with the findings of 44 tumors from the gharbiah ...
cyclooxygenase-2 (cox-2) has a pivotal role in the pathogenesis of the lung cancer. it is known that cox-2 negatively regulates the activity of a number of tumor suppressors, including p53. consequently, inhibition of cox-2 signaling is anticipated to be a promising approach to stabilize p53 functionality. in this regard, we investigated the effect of cox-2 signaling blockade on p53 and cox-2 e...
Background: Loss of function in tumor suppressor genes is commonly associated with the onset/progression cancer and development therapeutic resistance. The p53 mutations resulting loss are common across variety tumors control cell proliferation more than 50% cancers. P53 null present about 10% driven However, to date there no effective treatment for rescuing We have developed a new potent strat...
هدف از این تحقیق، بررسی تاثیر 7 روز مصرف مکمل کراتین مونوهیدرات (crm) بر آسیب اکسیداتیو dna، پراکسیداسیون لیپید، حذف mtdna، سطوح p53 و igf-1 پس از فعالیت هوازی وامانده ساز در کشتی گیران جوان بود. 31 کشتی گیر جوان (سن 75/2±52/19 سال؛ وزن 13/16±24/79 کیلوگرم؛ قد 49/6±173 سانتی متر؛ درصد چربی بدن 92/5±37/16) به صورت داوطلبانه در این پژوهش دو سو کور کنترل شده با دارونما شرکت کردند و به صورت تصادفی ...
Introduction & Objective: Genetic agents play important roles in developing of cancers. Mutations and polymorphism affects on p53 protein function in suppressing tumor. We aimed to investigate the intron 3 polymorphism of p53 in Isfahanian breast invasive ductal carcinoma. Materials & Methods: We undertook a case–control study on 192 controls and 192 patients with breast invasive ductal carc...
The objective of the present study was to compare P53 protein expression in aggressive and non-aggressive Basal Cell Carcinoma(BCC). BCC is the most common skin cancer in whites and is seen in men more than in women. P53 is a tumor suppressor gene and has role in cell growth control. Mutation in this gene leads to loss of cell growth control and, therefore, malignancy. Various studies...
زمینه و هدف: سرطان معده دومین سرطان شایع در جهان است. فاکتورهای ژنتیکی مانند انکوژن ها و ژن های سرکوبگر تومور، همواره از جمله مهمترین عوامل در بروز این سرطان هستند. ژن P53 یک ژن سرکوبگر تومور است و نقش بسیار مهمی در فرآیند مرگ برنامه ریزی شده سلول ایفا می کند. جهش در ژن P53 موجب از بین رفتن عملکرد محافظتی آن شده که یکی ازعوامل اصلی بروز سرطان معده در انسان است. این مطالعه با هدف بررسی جهش ها...
Cyclooxygenase-2 (COX-2) has a pivotal role in the pathogenesis of the lung cancer. It is known that COX-2 negatively regulates the activity of a number of tumor suppressors, including p53. Consequently, inhibition of COX-2 signaling is anticipated to be a promising approach to stabilize p53 functionality. In this regard, we investigated the effect of COX-2 signaling blockade on p53 and COX-2 e...
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