نتایج جستجو برای: hepatitis b virus dna
تعداد نتایج: 1668671 فیلتر نتایج به سال:
Wild-type p53 acts as a tumor suppressor gene by protecting cells from deleterious effects of genotoxic agents through the induction of a G1/S arrest or apoptosis as a response to DNA damage. Transforming proteins of several oncogenic DNA viruses inactivate tumor suppressor activity of p53 by blocking this cellular response. To test whether hepatitis B virus displays a similar effect, we studie...
Background & Aim: HBV is hepatotrophic virus that usually causes infection without any symptoms and it is a very important infective factor in patients with acute lymphoblastic leukemia because they need blood products during their treatment. Because of the importance of this subject the aim of this study was to use hepatitis B virus vaccination in patients who did not have immunity for thi...
background clinical observations have shown that patients infected with chronic hepatitis b virus (hbv) genotype c versus genotype b had a higher load of the virus, more serious illness, and poorer responses to antiviral therapy and prognosis. however, the disparity between the two has not been clarified. objectives to explore possible relationship between hbv genotypes b and c and peripheral b...
background: the association between hepatitis b virus (hbv) mutations and hepatocarcinogenesis were reported in the literature. preference for g over c in the leading dna strand has been reported to account for the asymmetry in nucleotide (nt) composition. the aim of this study was to analyze the complete genome sequence and compositional asymmetry of hbv in different stages of hepatitis b. met...
background chronic hepatitis b (chb) is accompanied by inflammation of liver because of infection with hepatitis b virus (hbv). previous studies revealed an inverse association between vitamin d and hbv dna levels. objectives the current study aimed to investigate the levels of 25 (oh) d3 (the steady form of vitamin d), mir-378 and hbv dna in the patients with chb. patients and methods one hund...
sarcoma. 4. Detection of CMV DNA, CMV RNA and CMNA in tumor biopsies. Int 7 Cancer 1981 ;28:469-74. 1' Emery AEH. Recombinant DNA technology. Lancet 1981;ii:1406-9. 12 Macnab GM, Alexander JJ, Lacatsas G, Bey EM, Urbanowicz JM. Hepatitis-B surface antigen produced by a human hepatoma cell line. BrJ Cancer 1976;34:507-15. 13 Edman JC, Gray P, Valenzuela P, Rall LB, Rutter WJ. Integration of hepa...
Introduction: Hepatitis B virus (HBV) infection is a major health problem worldwide and may lead to serious clinical complications, including chronic hepatitis, liver cirrhosis, and hepatocellular carcinoma. The host’s genetic background in immune system genes is a crucial etiologic factor in progression of HBV infection to chronic disease or clearance of the virus from the body. Interleu...
with up to 400 million affected people worldwide, chronic hepatitis b virus (hbv) infection is still a major health care problem. during the last decade, several novel therapeutic approaches have been developed and evaluated. in most regions of the world, interferon-α (ifn-α), and nucleos(t)ide analogues are currently approved. despite major improvements, none of the existing therapies is optim...
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