Differential effects of chronic and intermittent administration of taurine on alcohol binge drinking in male rats

IF 2.6 3区 心理学 Q2 BEHAVIORAL SCIENCES
Gabriela Adriany Lisboa Zilli , Bruna Haendchen Sant’Ana , Caroline da Silveira Bastiani , Lucas dos Reis Izolan , Rianne Remus Pulcinelli , Douglas Marques , Mirna Bainy Leal , Rosane Gomez
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引用次数: 0

Abstract

Episodic consumption of high doses of alcohol in a short period (binge drinking - BD) among adolescents is known to be harmful to their brain development. Chronic use of taurine increases voluntary alcohol consumption and shows an anxiolytic-like effect in rats. In this study, we evaluated the differential effects of chronic and intermittent taurine administration on alcohol consumption and behavioral changes in adolescent and young adult rats subjected to the BD model. Male Wistar rats (35 days old) were divided into 4 groups for daily intraperitoneal administration of saline (SAL); taurine, 100 mg/kg (TAU); taurine on BD days and saline on intervals (TAU/SAL); and saline on BD days and taurine on intervals (SAL/TAU). They were exposed to 4 cycles of BD, with free access to alcoholic solution (20 % w/v), for 2 h, 3 days per week. At the end of the 3rd cycle, anxiety-like behaviors were assessed using the light-dark task. After euthanasia, plasma and prefrontal cortex samples were collected to measure corticosterone and BDNF levels, respectively. Chronic taurine treatment did not alter alcohol consumption in rats, whereas intermittent administration increased alcohol intake after 4 BD exposures (TAU/SAL: +19.4 % and SAL/TAU: +21.6 %). No anxiolytic-like effects were found by taurine administration, nor were there changes in serum corticosterone or BDNF levels in the frontal cortex of young adult rats. Intermittent taurine, but not chronic treatment, increased alcohol intake among rats after the second week of exposure. The translation of these results to humans is concerning since the combination of alcohol and drinks containing taurine is common among adolescent and young adult individuals.
长期和间歇服用牛磺酸对雄性大鼠酗酒的不同影响
众所周知,青少年在短期内偶发性地饮用高剂量的酒精(暴饮暴食)对他们的大脑发育有害。长期服用牛磺酸可增加大鼠的自愿饮酒量,并显示出类似抗焦虑的效果。在这项研究中,我们评估了慢性和间歇性牛磺酸给药对BD模型中青少年和年轻成年大鼠的酒精消耗和行为变化的不同影响。雄性 Wistar 大鼠(35 天大)被分成 4 组,每天腹腔注射生理盐水(SAL);牛磺酸 100 毫克/千克(TAU);BD 日注射牛磺酸,间歇期注射生理盐水(TAU/SAL);BD 日注射生理盐水,间歇期注射牛磺酸(SAL/TAU)。它们接受了 4 个周期的 BD,每周 3 天,每次 2 小时,可自由饮用酒精溶液(20% w/v)。在第3个周期结束时,使用光-暗任务评估焦虑行为。安乐死后,采集血浆和前额叶皮层样本,分别测定皮质酮和BDNF水平。慢性牛磺酸治疗不会改变大鼠的酒精摄入量,而间歇性给药会增加4次BD暴露后的酒精摄入量(TAU/SAL:+19.4%和SAL/TAU:+21.6%)。服用牛磺酸不会产生类似抗焦虑的效果,年轻成年大鼠的血清皮质酮或额叶皮层中的 BDNF 水平也不会发生变化。在接触牛磺酸的第二周后,间歇性牛磺酸治疗(而非长期治疗)会增加大鼠的酒精摄入量。将这些结果转化到人类身上令人担忧,因为在青少年和年轻成年人中,将酒精和含有牛磺酸的饮料结合在一起是很常见的。
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来源期刊
Behavioural Brain Research
Behavioural Brain Research 医学-行为科学
CiteScore
5.60
自引率
0.00%
发文量
383
审稿时长
61 days
期刊介绍: Behavioural Brain Research is an international, interdisciplinary journal dedicated to the publication of articles in the field of behavioural neuroscience, broadly defined. Contributions from the entire range of disciplines that comprise the neurosciences, behavioural sciences or cognitive sciences are appropriate, as long as the goal is to delineate the neural mechanisms underlying behaviour. Thus, studies may range from neurophysiological, neuroanatomical, neurochemical or neuropharmacological analysis of brain-behaviour relations, including the use of molecular genetic or behavioural genetic approaches, to studies that involve the use of brain imaging techniques, to neuroethological studies. Reports of original research, of major methodological advances, or of novel conceptual approaches are all encouraged. The journal will also consider critical reviews on selected topics.
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