Background: In this study, the protective effect of thymoquinone (TQ) and Nigella sativa seeds oil (NSO) was evaluated against oxidative damages induced by ethanol in rats. Methods: Animals were treated with ethanol 40% daily by gavages once a day for 4 weeks. NSO and TQ were injected intraperitoneal once a day for 4 weeks. The histopathological examination of liver, kidney, brain and heart was...

The decline in cognitive robustness with aging can be attributed to complex genetic pathways involving many cellular dysfunctions, cumulative over time, precipitating in frailty and loss of wellness in the elderly brain. The size and health of the neuronal cell population determines cognitive robustness in mammals. A transgenic mouse model over-expressing Bcl-2 has been shown to rescue neurons ...

ischemia-reperfusion injury is the tissue damage caused when blood supply returns to the tissue after a period of ischemia or lack of oxygen. ischemia-reperfusion brain injury initiates an inflammatory response involving the expression of adhesion molecules and cytokines. twenty–four male wistar rats (250-300 g body wt) were used in this study. the animals were divided into four groups of 6 rat...

Following estrogen replacement in old female rats, changes in apoptosis-related genes (Bcl-2, Bax) in the urethra were investigated by immunohistochemical and RT-PCR analysis. A total of 40 old (16-month-old) female Wistar rats were divided into the following 5 groups: normal controls; rats replaced with low-dose estradiol (E2) for 2 and 4 weeks, respectively; and rats replaced with high-dose E...

OBJECTIVE To evaluate the mRNA expression ratio of Bcl-2/Bax both in normal and tumoral bladder tissues of patients with transitional cell carcinoma (TCC) of bladder and investigate potential correlation between this expression ratio and clinical outcome. MATERIALS AND METHODS In this experimental study, we used real time-PCR to investigate the expression of Bcl-2 and Bax both in normal and t...

Acute erythroleukemia is a rare form of acute myeloid leukemia recognized by its distinct phenotypic attribute erythroblasts proliferation. In this study, in vitro experiments showed that newly synthesized chalcone (ZH-254) inhibited cell proliferation, caused apoptosis, arrested the cycle G1 phase, and downregulated Fli-1 expression inhibiting promoter activity. vivo ZH-254 could effectively a...

Background: The aging process is associated with a progressive deterioration of tissues and organs. Apoptotic cell death has been known as a possible causal factor in age-related pathologies. Therefore, this study was conducted to assess the effect of regular high-intensity interval exercise on some apoptotic factors in the brain tissue of aged female rats. Materials and Methods: In this exper...

stress is one of the effective factors in the development of depressive disorders that performs some parts of its effects by affecting hippocampus. since doxepin has been shown to have neuroprotective effects, in this study, we focused on the effects of doxepin on the expression of involved genes in neuronal survival and plasticity in the rat hippocampus following chronic stress. male wistar ra...

The bcl-2 family of proteins includes some important regulators of apoptosis. Among these, bcl-2 and bcl-xL prevent cells from entering apoptosis, whereas bax and bcl-xS can induce cell death. Alterations in the control of this process can lead to a decrease in cell death, thus contributing to neoplastic growth. Diminished susceptibility to chemotherapy has also been attributed, in in vitro sys...