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The dosage-dependent effects of cevimeline in preventing olanzapine-induced metabolic side-effects in female rats.
Pharmacology Biochemistry and Behavior ( IF 3.6 ) Pub Date : 2020-02-26 , DOI: 10.1016/j.pbb.2020.172878
Jiamei Lian 1 , Chao Deng 1
Affiliation  

Olanzapine has been used for the treatment of schizophrenia and other mental disorders. However, it is associated with serious weight gain and other metabolic side-effects. The antagonistic affinity of olanzapine to muscarinic M3 receptors has been evidenced as one of the main contributors for its weight gain and other metabolic side-effects. Therefore, this study investigated whether the co-treatment of cevimeline (a M3 receptor agonist) could prevent the metabolic side-effects associated with olanzapine medication. Female Sprague Dawley rats were treated orally with olanzapine (2 mg/kg, t.i.d.) and/or cevimeline at 3 dosages (3, 6, 9 mg/kg, t.i.d.), or vehicle for two weeks. Weight gain and food/water intake were measured throughout the drug treatment period. Intraperitoneal glucose tolerance tests and open field tests were conducted. Olanzapine-treated rats demonstrated significantly elevated body weight gain, food intake, feeding efficiency, total white fat mass, liver mass, and plasma triglyceride levels, which could be partly reversed by the co-treatment with cevimeline in a dosage-dependent manner. In general, the body weight gain can only be reversed by the co-treatment of 9 mg/kg cevimeline. The cevimeline co-treatment decreased plasma triglyceride and glucose levels compared with olanzapine only treatment. The results suggested a dosage-dependent effect of cevimeline in ameliorating olanzapine-induced weight gain and metabolic side-effects, which supports further clinical trials using cevimeline to control weight gain and metabolic side-effects caused by antipsychotic medications.



中文翻译:

西维美林预防雌性大鼠中奥氮平诱导的代谢副作用的剂量依赖性作用。

奥氮平已被用于治疗精神分裂症和其他精神疾病。但是,它与严重的体重增加和其他代谢副作用有关。奥氮平对毒蕈碱型M3受体的拮抗亲和力已被证明是其体重增加和其他代谢副作用的主要贡献者之一。因此,本研究调查了西维美林(一种M3受体激动剂)的共同治疗是否可以预防与奥氮平药物相关的代谢副作用。将雌性Sprague Dawley大鼠口服奥氮平(2 mg / kg,tid)和/或西维美林3种剂量(3、6、9 mg / kg,tid)或赋形剂治疗两周。在整个药物治疗期间均测量体重增加和食物/水摄入量。进行了腹膜内葡萄糖耐量试验和野外试验。用奥氮平治疗的大鼠表现出体重增加,食物摄入,进食效率,总白脂肪量,肝量和血浆甘油三酯水平显着升高,这可以通过与西维美林共同治疗以剂量依赖性方式部分逆转。通常,体重增加只能通过9 mg / kg西维美林的共同治疗来逆转。与仅使用奥氮平的治疗相比,西维美林的共同治疗降低了血浆甘油三酸酯和葡萄糖水平。结果表明,西维美林在改善奥氮平诱导的体重增加和代谢副作用方面具有剂量依赖性,这支持进一步的临床试验,使用西维美林来控制抗精神病药物引起的体重增加和代谢副作用。饲喂效率,总白脂肪量,肝量和血浆甘油三酯水平,可以通过剂量依赖性的方式与西维美林共同治疗而部分逆转。通常,体重增加只能通过9 mg / kg西维美林的共同治疗来逆转。与仅使用奥氮平的治疗相比,西维美林的共同治疗降低了血浆甘油三酸酯和葡萄糖水平。结果表明,西维美林在改善奥氮平诱导的体重增加和代谢副作用方面具有剂量依赖性,这支持进一步的临床试验,使用西维美林来控制抗精神病药物引起的体重增加和代谢副作用。饲喂效率,总白脂肪量,肝量和血浆甘油三酯水平,可以通过剂量依赖性的方式与西维美林共同治疗而部分逆转。通常,体重增加只能通过9 mg / kg西维美林的共同治疗来逆转。与仅使用奥氮平的治疗相比,西维美林的共同治疗降低了血浆甘油三酸酯和葡萄糖水平。结果表明,西维美林在改善奥氮平诱导的体重增加和代谢副作用方面具有剂量依赖性,这支持进一步的临床试验,使用西维美林来控制抗精神病药物引起的体重增加和代谢副作用。通常,体重增加只能通过9 mg / kg西维美林的共同治疗来逆转。与仅使用奥氮平的治疗相比,西维美林的共同治疗降低了血浆甘油三酸酯和葡萄糖水平。结果表明,西维美林在改善奥氮平诱导的体重增加和代谢副作用方面具有剂量依赖性,这支持进一步的临床试验,使用西维美林来控制抗精神病药物引起的体重增加和代谢副作用。通常,体重增加只能通过9 mg / kg西维美林的共同治疗来逆转。与仅使用奥氮平的治疗相比,西维美林的共同治疗降低了血浆甘油三酸酯和葡萄糖水平。结果表明,西维美林在改善奥氮平诱导的体重增加和代谢副作用方面具有剂量依赖性,这支持进一步的临床试验,使用西维美林来控制抗精神病药物引起的体重增加和代谢副作用。

更新日期:2020-02-26
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