نتایج جستجو برای: miR-122
تعداد نتایج: 60190 فیلتر نتایج به سال:
سلول های بنیادی مشتق شده از بافت چربی انسانی (hadsc) کاندیدای مورد توجه ای در سلول درمانی بیماری های کبدی اند که تمایل ویژه ای در بدست آوردن خصوصیات کبدی به همراه پتانسیل تکثیر بالاتر و دوره کشت طولانی تر نسبت به دیگر سلول های مزانشیمی حاصل از منابع دیگر دارند. میکروrna ها (mirna ها) دسته ای از rna های غیر کد کننده هستند که به عنوان تنظیم کننده های کلیدی در فعالیت های بیولوژیکی مختلف مانند تکثی...
MicroRNAs are small non coding RNAs that are involved in gene expression regulation. Mir-122 was reported to inhibit hepatitis B virus (HBV), but little is known about the role of mir-122 polymorphisms on HBV infection development. This present study aimed to investigate the association between single nucleotide polymorphisms (SNPs) in mir-122 gene region with HBV infection. Study cases were HB...
چکیده: عفونت با هپاتیت c یکی از مهمترین عوامل بیماریهای کبدی است و بیش از 170 میلیون نفر در سراسر دنیا به این ویروس آلوده اند. بعد از مراحل تحت بالینی بیماری بیش از 80 درصد افراد مبتلا به هپاتیت c به عفونت دائم هپاتیت مبتلا می شوند که همراه با بیماریهای مزمن کبدی است که پیامد آن سیروز و سرطان کبد است. مطالعات سعی نموده اند تا یک مارکر اختصاصی تر و قابل اطمینان تر در جهت کامل نمودن میزان alt و ...
Background and purpose: MicroRNA-122 (miR-122) is the most abundant liver–specific miRNA. It has been reported that miR-122 plays several biological roles such as iron homeostasis, tumor suppressor, hepatic fatty acid regulation, and in hepatocyte differentiation. The Purpose of this study was to investigate changes in liver miR-122 gene expression and serum levels of alanine aminotransferase (...
Objective(s): Impairment of nerve cells of brain induced by hypoxia results in energy-deprivation and dysfunction, which accompanies with neurons apoptosis. Improving function of nerve cells is important for treating cerebral anoxia. This study aimed to investigate the role of Quercetin (Quer) in hypoxia-induced injury of pheochromocytoma (PC-12) cells. Materials and Methods: PC-12 cells were c...
OBJECTIVE To investigate the effects of microRNA-122 (miR-122) on proliferation, migration, and invasion in human hepatocellular carcinoma (HCC) cells by activating epithelial-mesenchymal transition (EMT) pathways. METHODS miR-122 mimics, miR-122 inhibitors, relevant control oligonucleotides, and Wnt1 were transfected into HepG2 and huh7 cell lines which were then divided into six groups: miR...
Hepatitis C virus (HCV) replication requires binding of the liver-specific microRNA (miRNA) miR-122 to two sites in the HCV 5' untranslated region (UTR). Although we and others have shown that viral genetics impact the amount of active miR-122 required for replication, it is unclear if HCV can replicate in the complete absence of this miRNA. To probe the absolute requirements for miR-122 and th...
Our study investigated whether microRNA-122 (miR-122) played important roles in the proliferation, invasion and apoptosis of human cholangiocarcinoma (CC) cells. QBC939 and RBE cells lines were chosen and divided into five groups: miR-122 mimic group, anti-miR-122 group, negative control (NC) group, mock group and blank group. MiR-122 expression was measured by qRT-PCR. Roles of miR-122 in cell...
Mesenchymal stem cell (MSC) transplantation alone may be insufficient for treatment of liver fibrosis because of complicated histopathological changes in the liver. Given that miR-122 plays an essential role in liver fibrosis by negatively regulating the proliferation and transactivation of hepatic stellate cells (HSCs), this study investigated whether miR-122 modification can improve the thera...
Hepatitis C virus (HCV) replication is dependent on a liver-specific microRNA (miRNA), miR-122. A recent clinical trial reported that transient inhibition of miR-122 reduced viral titres in HCV-infected patients. Here we set out to better understand how miR-122 inhibition influences HCV replication over time. Unexpectedly, we observed the emergence of an HCV variant that is resistant to miR-122...
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