introduction: stem cell biology has been the subject of much recent discussion. embryonic stem (es) cells, derived from the inner cell mass of the blastocyst stage of early mammalian embryos are expected to become a powerful tool in future regenerative medicine and developmental biology due to their capacity of self-renewal and pluripotency. in the present study, the ultrastructural development...

Background & AimsAlthough the tumor microenvironment plays an important role in growth, it is not fully understood what hepatic stellate cells (HSCs) play hepatocellular carcinoma (HCC) microenvironment.MethodsA high-fat diet after streptozotocin was administered to HSC-specific Atg7-deficient (GFAP-Atg7 knockout [KO]) or growth differentiation factor 15 (GDF15)-deficient (GFAP-GDF15KO) mice. L...

abstract   the mutagenic and immunosuppressory effects of cyclophosphamide (cyp) are still the primary limitation to wider application for treating a variety of human malignancies. on the one hand, cyp treatment predisposes transplant recipients and cancer patients to risk of bacterial, fungal, and viral infections, in the other word the, lipopolysaccharide (lps), an endotoxin found in cell wal...

objective: patients over 60 years of age have higher mortality and morbidity after major liver resections. nitric oxide (no) derived from the catalytic activity of nos2 plays a beneficial role in liver regeneration (lr) after partial hepatectomy (ph). in this experiment, we evaluated the effect of nos2 knockout (ko) on lr in aged mice after ph. materials and methods: in this cohort study, 52 tw...

BACKGROUND & AIMS Studies of hepatitis C virus (HCV) infection, immunopathogenesis, and resulting liver diseases have been hampered by the lack of a small animal model. We developed humanized mice with human immune system and liver tissues to improve the studies of hepatitis C virus pathogenesis and treatment. METHODS To promote engraftment of human hepatocytes, we expressed a fusion protein ...

objective: it is hypothesized that stem cells have the capability to form tumors after transplantation. spermatogonial stem cells have proliferation potency and colonization ability related to express pluripotency genes such as c-myc. the primary aim of this study is to investigate tumorigenicity ability of these cells after in vitro cultivation and inoculation in athymic animals. methods: sper...

background and objectives: glycoprotein 96 is the primary chaperone of the endoplasmic reticulum. immunization with it induced potent cytotoxic t lymphocyte responses to intracellular bacteria. s. typhimurium is a facultative intracellular bacterium and acquired resistance against this bacterium mainly depends on activity of cytotoxic t cells. this study aimed to evaluate the capacity of glycop...

background: the radioprotective effect of grewia asiatica fruit (gae) which contains anthocyanin type cyanidin 3- glucoside, vitamin c, a, minerals, carotenes and dietary fibers etc was studied. materials and methods: for study swiss albino mice were divided into five groups-1. control (vehicle treated) 2. gae treated (700 mg / kg. b.wt / day for fifteen days), 3. irradiated (5 gy), 4. gae + ir...

Drug induced liver injury (DILI) leads to acute hepatitis in 10%, liver failure, and death in 30%. One of the major drugs causing DILI is Anti-tuberculous drugs and since tuberculosis is affecting 1/3rd of the total world population, their use is quite common. Use of Isoniazid (INH) is limited owing to hepatotoxicity following the stress produced by oxidative species. Silymarin has hepatoprotec...