background:gossypol is a yellow toxic pigment from the cottonseed that can cause acute or chronic toxicity in humans and animals by affecting the testicular tissues. nowadays cottonseed is used as food supplement for ruminants specially the sheep. in this study, two different stem cell lines of testicular tissue including gc1-spg (mouse testis) and sftf-pi43 (sheep testis) cells were used to ev...

background: oligodendrocytes, the myelinating glial cells of central nervous system, are highly vulnerable to ischemic‑induced excitotoxic insult, a phenomenon in which calcium overload triggers cell death. berberine is an alkaloid extracted from medicinal herbs as coptidis rhizoma with several pharmacological effects like inhibition of neuronal apoptosis in cerebral ischemia. methods: we exami...

mono-targeting by imatinib as a main antitumor agent does not always accomplish complete cancer suppression. 2,5-dimethyl-celecoxib (dmc) is a close structural analog of the selective cyclooxygenase-2 (cox-2) inhibitor, celecoxib, that lacks cox-2 inhibitory function. in this study, we aimed to show the apoptotic effects of imatinib in combination with dmc in human ht-29 colorectal cancer (crc)...

background: radiation-induced bystander effect is a response which results in damage in non-irradiated cells in response to signals from the irradiated cells. the aim of the present study was to investigate microwave-induced bystander effect from a gsm mobile phone simulator on induction of apoptosis in jurkat cell line. materials and methods: jurkat cells were divided into three groups of non-...

introduction: oxidative stress and neuroinflammation are involved in neurodegeneration procedure in parkinson’s disease. recently, neuroprotective potential of boswellia resin has been demonstrated. therefore, this study examined whether administration of boswellia resin would attenuate mpp+- induced neuronal death in sk-n-sh- cell line, a human dopaminergic neurons- in vitro. methods: boswelli...

nano-silver (agnp) has biological properties which are significant for consumer products, food technology, textiles and medical applications (e.g. wound care products, implantable medical devices, in diagnosis, drug delivery, and imaging). for their antibacterial activity, silver nanoparticles are largely used in various commercially available products. thus, the use of nano-silver is becoming ...

BACKGROUND The use of temozolomide (TMZ) has improved the prognosis for glioblastoma multiforme patients. However, TMZ resistance may be one of the main reasons why treatment fails. Although this resistance has frequently been linked to the expression of O6-methylguanine-DNA methyltransferase (MGMT) it seems that this enzyme is not the only molecular mechanism that may account for the appearanc...

Glioblastoma multiforme is the most common malignant brain tumor in adults, and it is among the most lethal of all cancers. Recent studies have shown that ligand activation of peroxisome proliferator-activated receptor (PPAR)-gamma can induce differentiation and inhibit proliferation of several cancer cells. In this study, we have investigated whether one PPARgamma ligand in particular, ciglita...

Galectins are evolutionarily conserved beta-galactoside-binding lectins which recognize specific glycoconjugates on the cell surface and the extracellular matrix. Accumulating evidence indicates that these proteins are involved in a variety of physiological and pathological processes including tumor growth and metastasis. Up-regulated expression of galectin-1 is a hallmark of a variety of malig...