Hamidreza Komaki

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Lead (Pb) is a neurotoxic metal that is widely distributed in the environment. In experimental animals, chronic exposure to this neurotoxicant resulted in impaired synaptic plasticity and cognitive function. In this study, we examined the protective effects of vitamin C (ascorbic acid) against Pb exposure-induced impairment of long-term potentiation (LTP).(More)
Synaptic plasticity includes short-term and long-term changes in synaptic strength. Short-term plasticity can be used to assess the site mediating the long-lasting forms of synaptic plasticity such as long-term potentiation (LTP). The endogenous endocannabinoid systems can modulate LTP, and similarly, the activation of the vanilloid system has been shown to(More)
Long-term potentiation (LTP) of synaptic responses is a widely researched model of synaptic plasticity that occurs during learning and memory. The cannabinoid system is an endogenous system that modulate this kind of synaptic plasticity. In addition, voltage dependent calcium channels is essential for induction of LTP at some synapses in the hippocampus.(More)
Despite previous findings on the effects of cannabinoid and vanilloid systems on learning and memory, the effects of the combined stimulation of these 2 systems on learning and memory have not been studied. Therefore, in this study, we tested the interactive effects of cannabinoid and vanilloid systems on learning and memory in rats by using passive(More)
Long-term potentiation (LTP), a form of synaptic plasticity, is considered to be a critical cellular mechanism that underlies learning and memory. Cannabinoid CB1 and metabotropic GABAB receptors display similar pharmacological effects and co-localize in certain brain regions. In this study, we examined the effects of co-administration of the CB1 and GABAB(More)
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