OBJECTIVE This study aimed to investigate neuronal apoptosis and expression of apoptosis related proteins (Fas, Caspase-3 and Bcl-2) in the brain of rates with morphine addiction. METHODS A total of 48 adult male Sprague-Dawley rats weighing 190-210 g were randomly divided into 3 groups (n=16 per group): morphine addiction group, morphine abstinence group and control group. Rats in the addict...

A significant amount of evidence indicates that microRNAs (miRNAs) play an important role in drug addiction. The nucleus accumbens (NAc) is a critical part of the brain's reward circuit and is involved in a variety of psychiatric disorders, including depression, anxiety, and drug addiction. However, few studies have examined the expression of miRNAs and their functional roles in the NAc under c...

objective: addiction, especially morphine dependence is a prevalence and incurable disease. with regard to low ability of new chemical drugs in treatment of addicted ones and with respect to herbal medicine recommendation due to lower side effects and cheap production. this study experimentally examined the effect of p.harmala on morphine withdrawal syndrome. materials and methods: animals wer...

background: matricaria chamomilla (mc) contains flavonoids such as apigenine which exerts benzodiazepine-like activity, therefore it may be helpful for morphine withdrawal syndrome treatment. in this study the effects of peripheral (ip) injection of mc hydroalcoholic extract was investigated on morphine withdrawal syndrome signs in rats. material &methods;: 24male wistar rats (200-250gr) were a...

Drug addiction is a chronic brain disease that is a serious social problem and causes enormous financial burden. Because mitochondrial abnormalities have been associated with opiate addiction, we examined the effect of morphine on mtDNA levels in rat and mouse models of addiction and in cultured cells. We found that mtDNA copy number was significantly reduced in the hippocampus and peripheral b...

1. The effect of three periods of isolation (8, 15 and 30 days) were studied in mice on the pain threshold and the sensitivity to morphine. 2. The pain threshold was unchanged after 8 and 15 days of isolation but increased after 30 days of isolation. 3. The analgesic effect of morphine was unchanged after 8 and 15 days of isolation but increased after 30 days of isolation. 4. The tolerance to m...

HE term addiction, when applied to the syndrome resulting from T the prolonged use of morphine and its congeners in man, by coinmon usage involves three principal components, psychic dependence, physical dependence, and acquired toleranee. In view of the fact that the newer synthetic analgesics produce pharmacological effects, many of which are qualitatively similar to those of morphine and its...

Drug addiction poses serious social, medical, and economic problems, but effective treatments for drug addiction are still limited. Cocaine and morphine elevate dopamine levels in the nucleus accumbens (NAc), and the overwhelming actions of dopamine are implicated in reinforcement and addiction of abusive drugs. In our previous studies, we reported the regulatory role of acetylcholine (ACh) in ...

When we talk about drug addiction, we are really dealing with an extremely complex system in which there still remain many unknowns and where many empty spaces or missing links are still present. Recent studies have identified changes in the expression profiles of several specific miRNAs which affect the interactions between these molecules and their targets in various illnesses, including addi...

wound healing has always been among important and crucial subjects in medicine. morphine dependency has also been a social and health problem in the middle east. this study was aimed to investigate the effects of morphine dependency on pro-inflammatory and fibroblast cell recruitment, as well as re-epithelialization and the revascularization processes involved in secondary intention wound heali...