social anxiety disorder (sad) is the one of the most common anxiety disorders. despite its high prevalence, the disorder is still considerably undiagnosed and untreated. the disease places a massive burden on patient’s lives, affecting not only their social interactions but also their educational and professional activities, thereby constituting a severe disability. γ-aminobutyric acid (gaba) s...

objective(s):painful diabetic neuropathy is associated with hyperexcitability and hyperactivity of spinal cord neurons. however, its underlying pathophysiological mechanisms have not been fully clarified. induction of excitatory/inhibitory neurotransmission imbalance at the spinal cord seems to account for the abnormal neuronal activity in diabetes. protective properties of neurosteroids have b...

objective(s):the mechanism of hypothermia action of acetaminophen (apap) remains unclear even 125 years after its synthesis. acetaminophen produces hypothermia. the mechanism of this reduction in core body temperature is not clear but evidence shows that it is not dependent on opioid and cannabinoid receptors. because of strong documents about the roles of gaba and benzodiazepine receptors in h...

objective: argemone mexicana is a papaveracea plant; some reports have shown their antibacterial, anti-cancer, sedative and probably anti-anxiety properties. from their aerial parts, flavonoids and alkaloids have been isolated, which are intrinsically related to some actions on the central nervous system. the aim of this study was to evaluate the anxiolytic-like effects of the plant, using its ...

Introduction Licorice could exhibit beneficial effect in the management of insomnia by regulating key modulators such as GABA and serotonin, we therefore aimed to study potentail hypnotic licorice extract, glycyrrhizin (GCZ), on underlying mechanisms. Material methods Mice were randomly grouped a Control group, GCZ (low) (high) group DZP with 8 mice each group. Sleep latency, sleep duration loc...

In the present study, the effects of excitation and inhibition of GABAA and GABAB receptor subtypes on the expression of morphine-induced conditioned place preference (CPP) were investigated. For this purpose, male Wistar rats (250-300 g) were used in the experiments. Five days after surgical cannulation in the ventral tegmental area (VTA), different doses of morphine were injected into the ani...

background: testosterone and its metabolites have important roles in learning and memory. the current study has conducted to assess the effect of pre-training, post-training and pre-probe trial intrahippocampal ca1 administration of 3 alpha-anderostanediol (one of the metabolites of testosterone) and indomethacin (as 3 alpha-hydroxysteroid dehydrogenase enzyme blocker) on acquisition, consolida...

silver nanoparticles are increasingly used in various fields of biotechnology and applications in the medicine. objectives of this study were optimization of production of silver nanoparticles using biotransformations by fusarium oxysporum, and a further study on the location of nanoparticles synthesis in this microorganism. the reaction mixture contained the following ingredients (final concen...

Introduction: Estradiol is a neuroactive steroid, which is found in several brain areas such as locus coeruleus (LC). Estradiol modulates nociception by binding to its receptors and also by allosteric interaction with other membranebound receptors like glutamate and GABAA receptors. LC is involved in noradrenergic descending pain modulation. Methods: In order to study the effect of 17β-estra...

introduction: estradiol is a neuroactive steroid, which is found in several brain areas such as locus coeruleus (lc). estradiol modulates nociception by binding to its receptors and also by allosteric interaction with other membranebound receptors like glutamate and gabaa receptors. lc is involved in noradrenergic descending pain modulation. methods: in order to study the effect of 17β-estradio...