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Study on the Anti-Inflammatory and Analgesic Mechanisms of Breast Lump Resolution Detergent in a Rat Model of Breast Hyperplasia
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作者 chunying huang Yun He +1 位作者 Di Ouyang Xuhui Zhao 《Open Journal of Obstetrics and Gynecology》 2023年第7期1278-1286,共9页
Objective: This study aimed to investigate the anti-inflammatory and analgesic mechanisms of a breast lump resolution detergent in a rat model of breast hyperplasia. Methods: A rat model of breast hyperplasia was esta... Objective: This study aimed to investigate the anti-inflammatory and analgesic mechanisms of a breast lump resolution detergent in a rat model of breast hyperplasia. Methods: A rat model of breast hyperplasia was established using injections of estradiol benzoate combined with progesterone. The effects of the breast lump resolution detergent on nipple height and diameter in the rat model were observed, along with its impact on serum levels of estradiol (E2), prolactin (PRL), and progesterone (P). Additionally, the study examined the morphological changes in breast tissue. The impact of the breast nodule detergent on blood rheology parameters was also observed. Furthermore, the anti-inflammatory effect of the breast nodule detergent was assessed using the cotton ball granuloma experiment, and the analgesic effect was observed using the writhing test. Results: The breast lump resolution detergent reduced nipple height and diameter in the rat model, decreased serum levels of E2, PRL, and P, and alleviated pathological changes in breast tissue. It also lowered hemorheological parameters including whole blood high, medium, and low shear viscosity, plasma viscosity, red blood cell hematocrit, red blood cell aggregation index, red blood cell deformability index, red blood cell electrophoresis time, and erythrocyte sedimentation rate in the acute “blood stasis” rat model. The detergent reduced the weight of cotton ball granulomas in mice and decreased the number of writhing episodes caused by acetic acid. Conclusion: The breast lump resolution detergent demonstrates favorable therapeutic effects in treating breast hyperplasia, promoting blood circulation and removing blood stasis, exerting anti-inflammatory properties, and providing analgesic effects. The downregulation of serum E2 and PRL levels and the upregulation of P levels may be critical mechanisms underlying its efficacy. 展开更多
关键词 Breast Hyperplasia Breast Lump Resolution Detergent Estradiol (E2) Prolactin (PRL) Progesterone (P) ANTI-INFLAMMATORY ANALGESIC
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基于比较基因组学的解脂亚罗酵母CA20高产赤藓糖醇机理及进化分析
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作者 夏凯 刘芳美 +5 位作者 陈雨晴 陈珊珊 黄春莹 赵学群 沙如意 黄俊 《遗传》 CAS CSCD 北大核心 2023年第10期904-921,共18页
解脂亚罗酵母(Yarrowia lipolytica)是赤藓糖醇生产中使用的主要菌种,复合诱变是选育优良菌株的常用方法。然而,诱变处理所引起的基因组变化尚待探索。本研究对前期获得的高产菌株CA20和原始菌株WT5进行基因组测序,并与已发布的8株解脂... 解脂亚罗酵母(Yarrowia lipolytica)是赤藓糖醇生产中使用的主要菌种,复合诱变是选育优良菌株的常用方法。然而,诱变处理所引起的基因组变化尚待探索。本研究对前期获得的高产菌株CA20和原始菌株WT5进行基因组测序,并与已发布的8株解脂亚罗酵母进行比较基因组分析,旨在探究菌株CA20高产赤藓糖醇的机理以及不同菌株的基因组进化关系。结果显示,菌株CA20基因组大小为20,420,510 bp,GC碱基含量为48.97%,编码6330个CDS和649个ncRNA,菌株CA20和其他8株菌高度同源,平均核苷酸同源性(average nucleotide identity,ANI)>99.50%,其中与菌株IBT 446和H222具有更近的亲缘关系。比较基因组分析显示,CA20和其他8株菌共有5342个核心基因,而CA20特有的65个基因主要参与物质跨膜运输和蛋白质转运过程。CA20基因组中含有166个碳水化合物活性酶(carbohydrate-active enzymes,CAZymes)基因,远多于其他菌株(108~137个),包括特有的4个糖苷水解酶类(glycoside hydrolases,GHs)、2个糖基转移酶类(glycosyltransferases,GTs)和13个碳水化合物酯酶类(carbohydrate esterases,CEs)。除转醛酶TAL1外,赤藓糖醇代谢途径有关酶在不同菌株中高度保守。此外,菌株CA20的赤藓糖醇产量和产率为190.97 g/L和1.33 g/L/h,显著高于WT5的128.61 g/L和0.92 g/L/h(P<0.001)。相比于WT5,CA20中5个基因发生移码变异,15个基因存在非同义突变位点,这些基因主要参与细胞分裂、细胞壁合成、蛋白质合成及稳态维持等过程。以上结果表明,解脂亚罗酵母基因组在进化过程中保守;生存环境不同是导致菌株间基因组差异的重要因素;基因组中CAZymes数量的差异是不同菌株间性能差异的原因之一;菌株CA20高产赤藓糖醇与其细胞结构及内环境稳定性的提升有关。本研究结果为赤藓糖醇高产菌株的定向选育提供基础。 展开更多
关键词 解脂亚罗酵母 赤藓糖醇 比较基因组 移码变异 蛋白激酶
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