Activation of apoptotic signalling in endothelial cells contributes to the detrimental effects of a variety of pathological stimuli. In investigating the molecular events underlying the anti-apoptotic effect of human plasma in cultured human endothelial cells, we unexpectedly uncovered a novel mechanism of apoptosis suppression by human plasma through an interaction between two previously unrel...

Introduction: Nucleus accumbens (NAc) plays a critical role in neuronal reward circuits that are responsible for motivated and goal-directed behaviors. Some data suggest that morphine induces apoptosis in neurons, while other evidences show that morphine could have beneficial effects against neuronal cell death. This study was designed to evaluate the effect of morphine on apoptosis in the N...

background: deltamethrin (dm) is a synthetic pyrethroid insecticide that can elicit neurotoxicity, leading to apoptosis. there is accumulating evidence that oleuropein (oe) has anti-apoptotic effect. the purpose of this study was to determine the anti-apoptotic effect of oe pretreatment in the neuronal cells of cerebral cortex. methods: rats were randomly divided into four groups each containin...

Ovarian steroids, oestradiol and progesterone, are required for normal mammary growth at puberty and during pregnancy. They contribute to mammary parenchyma development by stimulating mammary epithelial cell (MEC) proliferation. However several studies demonstrate that oestradiol negatively affects milk production during the declining phase of lactation, but the oestradiol effect on MEC in lact...

The advent of combination therapy unprecedentedly shifted the paradigm of cancer treatment by reconstructing the conventional protocols. By identifying the anti-tumoral activity for different natural products, recent interest has focused on inventing the combined-modality strategies in order to increase the cure rates of cancer, while reducing the toxic side effects of current intensive regimen...

the pathogenesis of equine grass sickness (egs) has not fully understood. a better understanding of the exact pathogenesis of diseases can help to make an accurate diagnosis. previous studies reported some pathological damage of neuronal cells in egs patients. in this study, primarily cytotoxicity of serum from three clinically egs-diagnosed horses on pc12 tet-off (pto) cells was assessed. subs...

background: the mitogen-activated protein kinase (mapk) pathway is one of the major signaling pathways that transmit intracellular signals initiated by extracellular stimuli to the nucleus. the stress-activated protein kinase (sapk)/c-jun nh2-terminal kinase is a subfamily of map kinases implicated in cytokine and stress responses. objective: in this study, we have examined total and phosphoryl...

in many acute leukemias, normal differentiation does not occur. however, in many cell lines derived from hematologic malignancies, differentiation or programmed cell death (apoptosis) can be induced by variety of agents including: vitamin analogs, demethylating agents, cyclic amp analogs and anti-proliferative agents. to the best of our knowledge there has been not any study specifically to ana...

Cardiosphere-derived cells (CDCs) have emerged as one of the most promising stem cell types for cardiac protection and repair. Exosomes are required for the regenerative effects of human CDCs and mimic the cardioprotective benefits of CDCs such as anti-apoptotic effect in animal myocardial infarction (MI) models. Here we aimed to investigate the anti-apoptotic effect of the hypoxic and normoxic...

background and aims:in neurodegenerative disorders,oxidative stress mediated by reactive oxygen species is strongly associated with increased neuronal damages which can lead to apoptosis. pro-apoptotic and anti-apoptotic gene expressions are changed during the cell differentiation that affect cell viability and differentiation. therefore, this study was conducted to determine the effects of hyd...