Back ground: Although the cell differentiation is an inseparable part of development in multicellular organisms, the regulating molecular pathway of it still is not fully defined. In the other hand, apoptosis is a fundamental physiological process which plays an essential role in a variety of biological events during development. Moreover, recent studies have found that apoptosis shows several ...

introduction: evidence suggests that neuronal apoptosis in neurodegenerative diseases is correlated with inflammatory reactions. the beneficial or detrimental role of apoptosis in neuroinflammation is unclear. elucidating this question may be helpful in management of neurodegenerative diseases. since tnf-α is able to induce apoptosis as well as increased viability of the cells by activation of ...

chronic lymphocytic leukemia (cll) remains an incurable disease that requires innovative new approaches to improve therapeutic outcome. many ferula species, including f. asa-foetida, synthesize terpenyloxy coumarins. one of these coumarins is umbelliprenin, which has been implicated with induction of apoptosis in some cancer cell lines.     in this study induction of apoptosis by umbelliprenin ...

objective: this study aimed to evaluate the incidence of apoptosis in vitrified and non-vitrified human ovarian tissue by the use of morphological analysis and apoptosis assay techniques. methods: we obtained human ovarian tissue biopsies from 30 women who underwent elective caesarean sections. tissues were transported to the laboratory in pre-warmed, equilibrated leibovitz l-15 medium within 2...

objective(s): the purpose of this study was to investigate the role of chloride channel protein 2 (clc-2) in glutamate-induced apoptosis in the retinal ganglion cell line (rgc-5). materials and methods: rgc-5 cells were treated with 1 mm glutamate for 24 hr. the expression of clc-2, bax, and bcl-2 was detected by western blot analysis. cell survival and apoptosis were measured by 3-(4,5-dimethy...

objective: although iron is a crucial element for many metabolic pathways of the body, the excess iron may induce apoptosis in some cell types such as macrophages. in the present investigation, the role of iron overload in inducing apoptosis of balb/c mice macrophages infected with l. major in vitro, as a selective model, was studied. materials and methods: the peritoneal macrophages were harve...

results a significant decrease in apoptotic cells and increase in proliferative reaction were observed in the i/r + hbo group compared to the i/r group. conclusions we demonstrated that hbo suppressed apoptosis, which caused inflammation after renal i/r, and promoted tubular cell regeneration. hbo has protective effects against aki caused by renal i/r through the inhibition of apoptosis. materi...

background: apoptosis is a process that plays an important role during early stage of implantation. the aim of this study was to investigate the incidence of apoptosis in mice endometrium after ovarian stimulation at implantation period. methods: nmri female mice were divided into two groups: 1) control group, which were rendered pseudopregnant by vaginal stimulation and 2) experimental group, ...

background: prostate cancer is one of the most commonly diagnosed cancers in males. tumor suppressor gene p53 plays an important role in causing cell cycle arrest and allowing apoptosis to proceed. objective: to investigate the expression of p53 protein and its relation to apoptosis and prostate cancer traditional prognostic indicators. methods: in this study expression of p53 was examined in p...

objective(s):   zinc oxide nanoparticles (znp) are increasingly used in sunscreens, biosensors, food additives and pigments. in this study the effects of znp on liver of rats was investigated.     materials and methods: experimental groups received 5, 50 and 300 mg/kg znp respectively for 14 days. control group received only distilled water. alt, ast and alp were considered as biomarkers to ind...