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Efficacy and Safety of Berberine for Prediabetes: A Systematic Evaluation and Meta-Analysis
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作者 Li Wang Guohong Wei +1 位作者 longyun peng Hui Ge 《International Journal of Clinical Medicine》 2021年第4期131-144,共14页
<strong>Objective: </strong>To assess the efficacy and safety of berberine in the treatment of prediabetes. <strong>Methods:</strong> We searched the following databases, CNKI, WanFang, VIP, CB... <strong>Objective: </strong>To assess the efficacy and safety of berberine in the treatment of prediabetes. <strong>Methods:</strong> We searched the following databases, CNKI, WanFang, VIP, CBM, PubMed, Cochrane Library, Embase, and Medline (OVID) from the databases established to December 2020 in Chinese or English language. Randomized control trials (RCTs) of berberine compared with lifestyle modification, placebo, and/or hypoglycaemics intervention on treating prediabetes were included. Data extraction and paper quality assessment were conducted according to the Cochrane Handbook. RevMan 5.4 was used for the meta-analysis.<strong> Results:</strong> Seven studies involving 859 participants were included in the study and the control groups were all lifestyle modification or metformin treatment. The clinical heterogeneity of the trials was relatively high, and the methodological quality of most trials was generally low. Meta-analysis suggested that berberine could reduce FPG (<em>P</em> = 0.001), 2hPG (<em>P</em> = 0.001) and HbA1c (<em>P</em> = 0.002) levels significantly as compared with lifestyle group. There was no statistical significance between berberine and metformin. No serious adverse effects from berberine were reported. <strong>Conclusions:</strong> Berberine has good efficacy and safety in the treatment of prediabetes. Due to the quality limitations of the included trials, the above conclusions need to be further verified by high-quality, large sample size and multi-center clinical trials. 展开更多
关键词 BERBERINE PREDIABETES EFFICACY SAFETY META-ANALYSIS
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高产光学纯(R,R)-2,3-丁二醇工程菌株构建与发酵优化
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作者 黄艳燕 陈先锐 +5 位作者 彭龙云 叶柳健 李检秀 蒙健宗 张云开 谢能中 《生物技术》 CAS 2018年第2期178-184,共7页
[目的]构建能够专一性合成光学纯(R,R)-2,3-丁二醇的大肠杆菌工程菌,并进行发酵条件优化。[方法]将来源于多粘芽孢杆菌的(R,R)-2,3-丁二醇脱氢酶基因bdh,来源于阴沟肠杆菌的α-乙酰乳酸合成酶基因bud B和α-乙酰乳酸脱羧酶基因bud A与... [目的]构建能够专一性合成光学纯(R,R)-2,3-丁二醇的大肠杆菌工程菌,并进行发酵条件优化。[方法]将来源于多粘芽孢杆菌的(R,R)-2,3-丁二醇脱氢酶基因bdh,来源于阴沟肠杆菌的α-乙酰乳酸合成酶基因bud B和α-乙酰乳酸脱羧酶基因bud A与表达载体p Tr C99A连接,导入大肠杆菌中构建人工合成途径。筛选最适的培养基和发酵条件,提高(R,R)-2,3-丁二醇的产量、产率和得率。[结果]获得高效合成(R,R)-2,3-丁二醇的工程菌株GXASB,筛选到最适碳源及其浓度为120 g/L木薯淀粉,最适pH为6.5,最适接种量为10%,在发酵罐中进行同步糖化法发酵,(R,R)-2,3-丁二醇产量达到105.28 g/L,光学纯为99.1%,得率为0.47 g/g,生产强度为1.95 g/(L·h)。[结论]在大肠杆菌中表达基因簇bud B-bud A-bdh能够专一性合成光学纯(R,R)-2,3-丁二醇,经优化发酵条件后,能够显著提高(R,R)-2,3-丁二醇的合成效率。同时工程菌能够利用非粮原料木薯淀粉高效生产(R,R)-2,3-丁二醇,补料发酵产量达到105.28 g/L,为使用廉价原料工业化生产(R,R)-2,3-丁二醇提供参考。 展开更多
关键词 (R R)-2 3-丁二醇 人工合成途径 合成生物学 大肠杆菌基因工程菌 非粮原料 发酵条件优化
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