Pandy Vijayapandi, Khan Yasmin
Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia.
Exp Anim. 2016 Nov 1;65(4):437-445. doi: 10.1538/expanim.16-0018. Epub 2016 Jun 21.
Morinda citrifolia L. commonly known as noni or Indian mulberry belongs to the family Rubiaceae. Noni fruit juice has recently become a very popular remedy for the treatment of several diseases, including psychiatric disorders. This study aimed to investigate the anticraving effect of Tahitian Noni® Juice (TNJ) against ethanol seeking behavior in ICR male mice using the conditioned place preference (CPP) test. The CPP procedure consisted of four phases: preconditioning, conditioning, extinction, and reinstatement. During conditioning, intraperitoneal (i.p.) injections of ethanol (2 g/kg body weight (bw)) and normal saline (10 ml/kg bw) were given on alternate days for 12 days. Then, the animals were subjected to extinction trials for the next 12 days to weaken CPP. Finally, CPP was reinstated in the extinguished animals by a single low-dose priming injection of ethanol (0.4 g/kg bw, i.p.). The effect of TNJ (as a source of drinking water) on different phases of ethanol CPP in mice was studied. TNJ-treated mice showed a significant reduction in ethanol seeking behavior in the CPP test. The reference drug, acamprosate (ACAM) also showed a similar effect in the CPP test. The outcome of this study suggests that TNJ is effective in attenuating ethanol craving in mice and could be utilized for the treatment of alcohol dependence. Further clinical studies in this direction are warranted to support the present preclinical findings.
海巴戟天,通常被称为诺丽果或印度桑椹,属于茜草科。诺丽果汁最近已成为一种非常流行的治疗多种疾病的药物,包括精神疾病。本研究旨在使用条件性位置偏爱(CPP)试验,研究大溪地诺丽果汁(TNJ)对ICR雄性小鼠乙醇觅求行为的抗渴望作用。CPP程序包括四个阶段:预处理、条件化、消退和恢复。在条件化过程中,每隔一天腹腔注射乙醇(2 g/kg体重(bw))和生理盐水(10 ml/kg bw),持续12天。然后,在接下来的12天对动物进行消退试验,以减弱CPP。最后,通过单次低剂量乙醇(0.4 g/kg bw,腹腔注射)引发注射,使消退的动物恢复CPP。研究了TNJ(作为饮用水来源)对小鼠乙醇CPP不同阶段的影响。TNJ处理的小鼠在CPP试验中显示出乙醇觅求行为显著减少。参比药物阿坎酸(ACAM)在CPP试验中也显示出类似的效果。本研究结果表明,TNJ在减轻小鼠乙醇渴望方面有效,可用于治疗酒精依赖。有必要在这个方向上进行进一步的临床研究以支持目前的临床前研究结果。