On the role of metabotropic glutamate receptors in the mechanisms of action of antidepressants.
نویسندگان
چکیده
Most conventional antidepressant drugs influence serotoninergic, adrenergic, and/or dopaminergic systems, increasing serotonin, norepinephrine and dopamine synaptic availability. More recently attention has focused on glutamatergic system. Both preclinical and clinical studies, showing antidepressant-like actions of compounds which reduce transmission at N-methyl-D-aspartate (NMDA) receptors, indicate possible involvement of glutamatergic system in the etiology of depression. Since glutamatergic transmission is controlled not only by ionotropic but also by metabotropic glutamate receptors (mGluR), their involvement in the etiology and the therapy of depression was also postulated. Recent studies, showing that antidepressant treatment may influence mGlu receptors, together with the findings that group I mGluR antagonists, may possess antidepressant-like action, support this hypothesis.
منابع مشابه
Metabotropic glutamate receptors and their ligands applications in neurological and psychiatric disorders
Metabotropic glutamate receptors (mGluRs) consist of a large family of G-protein coupled receptors that are critical for regulating normal neuronal function in the central nervous system. The wide distribution and diverse physiological roles of various mGluR subtypes make them highly attractive targets for the treatment of a number of neurological and psychiatric disorders. The discovery of ...
متن کامل(S)- 3,5-Dihydroxyphenylglycine )an agonist for group I metabotropic glutamate receptors( induced synaptic potentiation at excitatory synapses on fast spiking GABAergic cells in visual cortex
Introduction: (S)- 3,5-Dihydroxyphenylglycine (DHPG) is an agonist for group I metabotropic glutamate receptors. DHPG-induced synaptic depression of excitatory synapses on hippocampal pyramidal neurons is well known model for synaptic plasticity studies. The aim of the present study was to examine the effects of DHPG superfusion on excitatory synapses on pyramidal and fast-spiking GABAergic cel...
متن کاملP6: Metabotropic Glutamate Receptor-Dependent Role in the Formation of Long-Term Potentiation
Long-term potentiation (LTP) is a reflection of synaptic plasticity that induced by specific patterns of synaptic activity and has an important role in learning and memory. The first clue of the potential role of glutamate receptors in LTP was in 1991 with the observation that the mGluR agonists 1-amino-1, 3-cyclopentanedicarboxylic acid (ACPD), increased LTP. Studies have shown that ACPD induc...
متن کاملIonotropic Glutamate Receptors and their Role in Neurological Diseases
Glutamate is extensively and relatively uniformly distributed in the central nervous system (CNS) and its effects mediated by two distinct groups of receptors including Ionotropic and metabotropic glutamate receptors. Concentration of glutamate in the nervous system is much higher than in other tissues. Glutamate receptors play an important role in synaptic transmission, neural plasticity and n...
متن کاملEffect of imipramine and desipramine on adenosine receptors in isolated rat atria
The effect of different doses (1-50 µ M) of imipramine (IMI) and desipramine (DES) on the rate and force of contraction of isolated rat atria was studied. IMI and DES produced a dose-dependent increase in force of contraction (31- 94% for IMI and 35-118% for DES). Pretreatment of rats with reserpine (5 mg/kg) on the isolated atria with propranolol (1 µ g) inhibited the positive ionotropic eff...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Polish journal of pharmacology
دوره 54 6 شماره
صفحات -
تاریخ انتشار 2002