نتایج جستجو برای: p53 expression

تعداد نتایج: 898809  

Journal: :iranian journal of pharmaceutical research 0
mehdi gharghabi department of toxicology-pharmacology, school of pharmacy, tehran university of medical sciences, tehran, iran farhang rezaei department of toxicology-pharmacology, school of pharmacy, tehran university of medical sciences, tehran, iran fereshteh mir mohammadrezaei department of biology, faculty of science, university of mazandaran, mazandaran, babolsar, iran mohammad hossein ghahremani tehran university of medical sciences

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...

رجایی, رسا, زکی خان-النگ, کبری, قرائتی, محمد رضا, محمدی, شهلا,

  Background : Various stresses such as ionizing radiation can increase cellular damage, especially to nuclear DNA. To protect cellular damages, normal regulatory genes (such as Tp53 tumor suppressor) become activated. Accordingly, in this study, the p53 gene and its expression among employees occupationally exposed to low doses of ionizing radiation were compared with a selected control group....

Journal: :iranian red crescent medical journal 0
shahroo etemad-moghadam dental research center, dentistry research institute, tehran university of medical sciences, tehran, ir iran amanollah keyhani meraj cancer institute, tehran university of medical sciences, tehran, ir iran kamran yazdani department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, ir iran mojgan alaeddini dental research center, dentistry research institute, tehran university of medical sciences, tehran, ir iran; dental research center, dentistry research institute, tehran university of medical sciences, tehran, ir iran. tel: +98-2188986677, fax: +98-2188986688

conclusions despite the fact that abnormalities in p53 and p27kip1 may be involved in the development of oscc, their clinical significance in the studied population seems limited. further investigation on the combined p53/p27kip1 expression may be helpful in predicting the biologic behavior of this tumor. results p53 and p27kip1 expression were found in 28.57% (8 positive versus 20 negative) an...

Background and Objectives: The P53 is one of the genes involved in weight management. This study investigated associations of dietary intakes, anthropometric measurements and insulin resistance with relative P53 gene expressions.  Materials & Methods: Visceral adipose tissue (VAT) and subcutaneous adipose tissue (SAT) were collected from 151 individuals, aging nearly 40 years, who underwent el...

Journal: :iranian journal of medical sciences 0
reza ghaderi f. haghighi

background: the most frequently mutated tumor suppressor gene found in human cancer is p53. in a normal situation, p53 is activated upon the induction of dna damage to either arrest the cell cycle or to induce apoptosis. however, when mutated, p53 is no longer able to properly accomplish these functions. the aim of this study was to investigate the expression of p53 gene in cases of skin cancer...

عباسی, محمد, مجلسی, امیر, منصف, علیرضا, کمالیان, ناصر, مبین, احمدرضا ,

Introduction & Objective: Gastric cancer is one of the most common cancers in Iran, and in some regions, the prevalence of this cancer is the highest among all diagnosed cancers, also it has the highest mortality rate. Concerning to different tumoral mutations that have role in prognosis and type of treatments in different cancers, this study was done to determine the association between p53 ...

ژورنال: دانشور پزشکی 2019
Bashiri, Jabbar , Pourrazi, Hassan ,

Background and Objective: Apoptosis plays a key role in the pathogenesis of a variety of cardiovascular diseases, especially cardiac failure. Therefore, the purpose of this study was investigating the effect of Origanum vulgare extract supplementation with and without exercise training on p53 and cytochrome c gene expression in myocardium of male rats.   Materials and Methods: Nineteen three-...

Ali Chehrei Diana Taheri Mahmoud Kabiri Mehrdad Mohammadi Sichani, Mohammad Reza Mohajery

Background and Objectives: RCC is one of the most common genitourinary cancers. Accurate prediction of prognosis would be valuable for adjuvant trial design, counseling and effectively scheduling follow up visits. P53 is a tumor suppressor gene that expresses a protein that involved in both cell-cycle ar...

Journal: :international journal of preventive medicine 0
mehdi nikbakht dastjerdi ebrahim momeni mehdiabady farhad golshan iranpour hamid bahramian

background: nigella sativa has been a nutritional flavoring factor and natural treatment for many ailments for so many years in medical science. earlier studies have been reported that thymoquinone (tq), an active compound of its seed, contains anticancer properties. previous studies have shown that tq induces apoptosis in breast cancer cells but it is unclear the role of p53 in the apoptotic p...

Journal: :middle east journal of cancer 0
fatemeh sari aslani department of pathology, shiraz university of medical sciences, shiraz, iran azarmidokht momeni department of pathology, shiraz university of medical sciences, shiraz, iran mozhdeh momtahan department of obstetrics and gynecology, shiraz university of medical sciences, shiraz, iran mozhgan akbarzadeh jahromi department of pathology, shiraz university of medical sciences, shiraz, iran amir reza dehghanian department of pathology, shiraz university of medical sciences, shiraz, iran dorna motevali department of pathology, shiraz university of medical sciences, shiraz, iran

background: ovarian cancer comprises a heterogeneous group of neoplasms. the prognosis cannot be predicted by histopathologic examination alone. the aim of this study is to evaluate p53, pten, and β-catenin expressions in primary ovarian carcinomas in an attempt to find a possible relationship with morphologic parameters and clinical findings. methods: the study included 100 epithelial ovarian ...

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