Fereshteh Motamedi

[ 1 ] - Effect of interaction between acute administration of morphine and cannabinoid compounds on spontaneous excitatory and inhibitory postsynaptic currents of magnocellular neurons of supraoptic nucleus

Objective(s): Opioids and cannabinoids are two important compounds that have been shown to influence the activity of magnocellular neurons (MCNs) of supraoptic nucleus (SON). The interaction between opioidergic and cannabinoidergic systems in various structures of the brain and spinal cord is now well established, but not in the MCNs of SON. Materials and methods: In this study, whole cell pat...

[ 2 ] - The comparison of the effects of acute and repeated morphine administration on fast synaptic transmission in magnocellular neurons of supraoptic nucleus, plasma vasopressin levels, and urine volume of male rats

The activity of the magnocellular neurons (MCNs) of supraoptic nucleus (SON) is regulated by a variety of excitatory and inhibitory inputs. Opioids are one of the important compounds that affect these inputs at SON synapses. In this study, whole-cell patch clamp recording of SON neurons was used to investigate the effect of acute and repeated morphine administration on spontaneous inhibitory an...

[ 3 ] - The Effect of Paxilline on Early Alterations of Electrophysiological Properties of Dentate Gyrus Granule Cells in Pilocarpine-Treated Rats

The dentate gyrus of hippocampus has long been considered as a focal point for studies on mechanisms responsible for the development of temporal lobe epilepsy (TLE). Change in intrinsic properties of dentate gyrus granule cells (GCs) has been considered as an important factor responsible in temporal lobe seizures. In this study, we evaluated the intrinsic properties of GCs, during acute phase o...

[ 4 ] - The comparison of the effects of acute and repeated morphine administration on fast synaptic transmission in magnocellular neurons of supraoptic nucleus, plasma vasopressin levels, and urine volume of male rats

The activity of the magnocellular neurons (MCNs) of supraoptic nucleus (SON) is regulated by a variety of excitatory and inhibitory inputs. Opioids are one of the important compounds that affect these inputs at SON synapses. In this study, whole-cell patch clamp recording of SON neurons was used to investigate the effect of acute and repeated morphine administration on spontaneous inhibitory an...

[ 5 ] - The Effect of Paxilline on Early Alterations of Electrophysiological Properties of Dentate Gyrus Granule Cells in Pilocarpine-Treated Rats

The dentate gyrus of hippocampus has long been considered as a focal point for studies on mechanisms responsible for the development of temporal lobe epilepsy (TLE). Change in intrinsic properties of dentate gyrus granule cells (GCs) has been considered as an important factor responsible in temporal lobe seizures. In this study, we evaluated the intrinsic properties of GCs, during acute phase o...

[ 6 ] - Repeated administration of cannabinoid receptor agonist and antagonist impairs short and long term plasticity of rat’s dentate gyrus in vivo

Introduction: The effects of cannabinoids (CBs) on synaptic plasticity of hippocampal dentate gyrus neurons have been shown in numerous studies. However, the effect of repeated exposure to cannabinoids on hippocampal function is not fully understood. In this study, using field potential recording, we investigated the effect of repeated administration of the nonselective CB receptor agonist WIN5...

[ 7 ] - Aspirin changes short term synaptic plasticity in CA1 area of the rat hippocampus

Introduction: The prostaglandin E2 (PGE2), a cyclooxygenase (COX) product, play critical roles in the synaptic plasticity. Therefore, long term use of COX inhibitors may impair the synaptic plasticity. Considering the wide clinical administration of aspirin and its unknown effects on information processing in the brain, the effect of aspirin and sodium salicylate on the short term synaptic p...

[ 8 ] - Increased synaptic activity in magnocellular neurons of supraoptic nucleus and plasma vasopressin levels due to acute administration of morphine in male rats

Introduction: The magnocellular neurons (MCNs) of the supraoptic nucleus (SON) play a crucial role in control of physiological and pathophysiologiccal condition due to two peptides that they synthesize, i.e. Oxytocin (OXT) and Vasopressin (AVP). The activity of MCNs is regulated by a variety of excitatory and inhibitory inputs. Opioid receptors are one of the important receptors in SON synap...

[ 9 ] - The firing rate of neurons in the nucleus cuneiformis in response to formalin in male rat

Introduction: Although formalin-induced activity in primary afferent fibers and spinal dorsal ‎horn is well described, the midbrain neural basis underlying each phase of behavior in ‎formalin test has not been clarified. The present study was designed to investigate the nucleus ‎cuneiformis (CnF)‎‏ ‏neuronal responses during two phases after subcutaneous injection of ‎formalin into the hind paw...

[ 10 ] - Spinal and supraspinal analgesic effects of Nimodipine : The role of Hypothalamo-Pituitary-Adrenal(HPA) axis .

Nimodipine, an L-type calcium channel blocker, can induce analgesia. However, it is not clear that this analgesic effect is at the level of spinal or supraspinal pain pathway. In addition, it has been reported that the analgesic effect of nifedipine, another L-type calcium channel blocker is related to the HPA axis, but there is no report indicating the role of this axis in the analgesic eff...

[ 11 ] - Peroxisomal Malfunction Caused by Mitochondrial Toxin 3-NP: Protective Role of Oxytocin

Peroxisomes are single membrane cell organelles with a diversity of metabolic functions. Here we studied the peroxisomal dysfunction and oxidative stress after 3-nitropropionic acid (3-NP) induced neurotoxicity and the possible protective effects of oxytocin. Adult male and female rats were subjected to Oxt and/or 3-NP treatment. The antioxidant enzymes, Superoxide dismutase (SOD) and Catalase ...

[ 12 ] - Peroxisomal Malfunction Caused by Mitochondrial Toxin 3-NP: Protective Role of Oxytocin

Peroxisomes are single membrane cell organelles with a diversity of metabolic functions. Here we studied the peroxisomal dysfunction and oxidative stress after 3-nitropropionic acid (3-NP) induced neurotoxicity and the possible protective effects of oxytocin. Adult male and female rats were subjected to Oxt and/or 3-NP treatment. The antioxidant enzymes, Superoxide dismutase (SOD) and Catalase ...

[ 13 ] - مقایسه اثر هالوپریدول و میدازولام و پلاسبو در درمان دلیریوم در موشهای صحرایی نر بالغ براساس تغییرات رفتاری

Abstract: purpose: Delirium is change in consciousness and ability to focus and attention . it is reducing costs and increasing the time patients stay in hospital . While sedative and hypnotic drugs reduce pain and anxiety , but according to sources , it is one of the risk factors of delirium . Haloperidol because of low anticholinergic activity and low drug interactions and metabolites hav...

[ 14 ] - Kisspeptin-13 Improves Spatial Memory Consolidation and Retrieval against Amyloid-β Pathology

It has been shown that brain glucose metabolism impairment, obesity, and diabetes couldlead to cognitive decline and Alzheimer’s disease (AD) pathogenesis. Kisspeptin (KP) a G-proteincoupled receptor neuropeptide, has been suggested as a link between energy balance andreproduction. Some studies have shown that the attenuation of KP signaling decreases metabolismand energ...

[ 15 ] - Kisspeptin-13 Improves Spatial Memory Consolidation and Retrieval against Amyloid-β Pathology

It has been shown that brain glucose metabolism impairment, obesity, and diabetes couldlead to cognitive decline and Alzheimer’s disease (AD) pathogenesis. Kisspeptin (KP) a G-proteincoupled receptor neuropeptide, has been suggested as a link between energy balance andreproduction. Some studies have shown that the attenuation of KP signaling decreases metabolismand energ...