Sharma Bhawana, Dabur Rajesh
Department of Biochemistry, Maharshi Dayanand University, Rohtak, Haryana 124001, India.
Department of Biochemistry, Maharshi Dayanand University, Rohtak, Haryana 124001, India
Alcohol Alcohol. 2016 Jan;51(1):1-10. doi: 10.1093/alcalc/agv130. Epub 2015 Nov 19.
Heavy alcohol intake depletes the plasma vitamins due to hepatotoxicity and decreased intestinal absorption. However, moderate alcohol intake is often thought to be healthy. Therefore, effects of chronic moderate alcohol intake on liver and intestine were studied using urinary vitamin levels. Furthermore, effects of Tinospora cordifolia water extract (TCE) (hepatoprotective) on vitamin excretion and intestinal absorption were also studied.
In the study, asymptomatic moderate alcoholics (n = 12) without chronic liver disease and healthy volunteers (n = 14) of mean age 39 ± 2.2 (mean ± SD) were selected and divided into three groups. TCE treatment was performed for 14 days. The blood and urine samples were collected on Day 0 and 14 after treatment with TCE and analyzed.
In alcoholics samples, a significant increase in the levels of gamma-glutamyl transferase, aspartate transaminase, alanine transaminase, Triglyceride, Cholesterol, HDL and LDL (P < 0.05) was observed but their level get downregulated after TCE intervention. Multivariate analysis of metabolites without missing values showed an increased excretion of 7-dehydrocholesterol, orotic acid, pyridoxine, lipoamide and niacin and TCE intervention depleted their levels (P < 0.05). In contrast, excretion of biotin, xanthine, vitamin D2 and 2-O-p-coumaroyltartronic acid (CA, an internal marker of intestinal absorption) were observed to be decreased in alcoholic samples; however, TCE intervention restored the CA and biotin levels. Vitamin metabolism biomarkers, i.e. homocysteine and xanthurenic acid, were also normalized after TCE intervention.
Overall data depict that moderate alcohol intake is also hepatotoxic and decreases intestinal absorption. However, TCE treatment effectively increased the intestinal absorption and retaining power of liver that regulated alcohol-induced multivitamin deficiency.
大量饮酒会因肝毒性和肠道吸收减少而导致血浆维生素缺乏。然而,适度饮酒通常被认为是有益健康的。因此,本研究利用尿维生素水平来探讨长期适度饮酒对肝脏和肠道的影响。此外,还研究了匙羹藤水提取物(TCE)(具有肝脏保护作用)对维生素排泄和肠道吸收的影响。
在本研究中,选取了平均年龄为39±2.2(平均值±标准差)、无慢性肝病的无症状适度饮酒者(n = 12)和健康志愿者(n = 14),并将其分为三组。TCE治疗持续14天。在TCE治疗后的第0天和第14天采集血液和尿液样本并进行分析。
在饮酒者样本中,观察到γ-谷氨酰转移酶、天冬氨酸转氨酶、丙氨酸转氨酶、甘油三酯、胆固醇、高密度脂蛋白和低密度脂蛋白水平显著升高(P < 0.05),但在TCE干预后其水平下调。对无缺失值的代谢物进行多变量分析显示,7-脱氢胆固醇、乳清酸、吡哆醇、硫辛酰胺和烟酸的排泄增加,而TCE干预降低了它们的水平(P < 0.05)。相反,在饮酒者样本中观察到生物素、黄嘌呤、维生素D2和2-O-对香豆酰酒石酸(CA,肠道吸收的内部标志物)的排泄减少;然而,TCE干预恢复了CA和生物素水平。TCE干预后,维生素代谢生物标志物即同型半胱氨酸和黄尿酸也恢复正常。
总体数据表明,适度饮酒也具有肝毒性并会降低肠道吸收。然而,TCE治疗有效地增加了肠道吸收并增强了肝脏的保留能力,从而调节了酒精引起的多种维生素缺乏。