Nitric oxide modulation mediates the protective effect of trazodone in a mouse model of chronic fatigue syndrome.
Journal Title: Pharmacological Reports - Year 2008, Vol 60, Issue 5
Abstract
The present study was conducted with the aim of elucidating the possible role of nitric oxide (NO) in the neuroprotective effects of trazodone used to treat chronic fatigue syndrome (CFS) in mice. Male albino mice were forced to swim for a six minute session each day for 7 days and the immobility period was recorded every other day. Trazodone (5 mg/kg and 10 mg/kg) was administered each day 30 min before the forced swim test. In addition, L-arginine (100 mg/kg) and L-NAME (5 mg/kg) were administered 15 min before administration of trazodone (5 mg/kg). Various behavioral tests, including locomotor (actophotometer) and anxiety (mirror chamber and plus maze) tests, as well as biochemical parameters (lipid peroxidation, reduced glutathione, catalase, and nitrites) were evaluated on the 8th day. Forced swimming for 7 days caused a chronic fatigue-like condition, anxiety-like behavior, impairments in locomotor activity, and oxidative damage (increased lipid peroxidation and nitrite levels, and depletions in the reduced forms of glutathione and catalase activity) in animals. Pretreatment with L-NAME (5 mg/kg) potentiated the antioxidant effect of trazodone (5 mg/kg). However, L-arginine (100 mg/kg) pretreatment reversed the protective effect of trazodone (5 mg/kg) (p < 0.05). The present study suggests the possible involvement of NO signaling in the protective effect of trazodone.
Authors and Affiliations
Anil Kumar, Ruchika Garg, Puneet Kumar
Keywords
Related Articles
- EP ID EP149743
- DOI -
- Views 95
- Downloads 0
Physiology and pharmacology of melatonin in relation to biological rhythms.
Melatonin is an evolutionarily conserved molecule that serves a time-keeping function in various species. In vertebrates, melatonin is produced predominantly by the pineal gland with a marked circadian rhythm that is gov...
Modification of local anesthetic-induced antinociception by fentanyl in rats.
In clinical practice, using the lowest doses of drugs for anesthesia or analgesia is the main goal. Opioid combinations with local anesthetics can be preferable for achieving adequate anesthesia or analgesia. The primary...
9-Methyl-beta-carboline has restorative effects in an animal model of Parkinson's disease.
In a previous study, a primary culture of midbrain cells was exposed to 9-methyl-beta-carboline for 48 h, which caused an increase in the number of tyrosine hydroxylase-positive cells. Quantitative RT-PCR revealed increa...
Effect of HMG-CoA (3-hydroxy-3-methylglutaryl-CoA) reductase inhibitors on the concentration of insulin-like growth factor-1 (IGF-1) in hypercholesterolemic patients.
Studies have shown that HMG-CoA reductase inhibitors (statins) play an important role in the prevention and treatment of atherosclerosis and hyperlipidemia. The aim of this study was to investigate the effect of 3-month...
Caffeine and the anticonvulsant potency of antiepileptic drugs: experimental and clinical data.
Caffeine (1,3,7-trimethylxanthine) is the most commonly ingested stimulant in the world. The daily consumption of this methylxanthine in coffee, tea and soft drinks is approximately 200 mg per person, which yields a phar...