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1Jianpi Qingchang decoction alleviates ulcerative colitis by inhibiting nuclear factor-κB activation显示文摘AIM To inve s t igat e t he t he r ape ut ic e f f e c t of Jianpi Qingchang decoction(JPQCD) on dextran sulfate sodium(DSS)-induced ulcerative colitis(UC) in mice.METHODS C57BL/c mice were injected intragastrically with 5% DSS instead of drinking water for 7 d, and their body weight, diarrhea severity and fecal bleeding were monitored, while the mice in the control group were treated with standard drinking water, without DSS. After 7 d, the DSS drinking water was changed to normal water and the DSS group continued with DSS water. The control and DSS groups were given normal saline by intragastric injection. The 5-aminosalicylic acid(5-ASA) group was treated orally with 5-ASA at a dose of 100 mg/kg daily. The JPQCD group was treated orally with JPQCD at a dose of 17.1 g/kg daily. On day 14, the colon length was measured, the colorectalhistopathological damage score was assessed, and protein levels of interleukin(IL)-1β, IL-8 and tumor necrosis factor-alpha(TNF-α) in colon supernatants were measured by enzyme-linked immunosorbent assay. m RNA expression of IL-1β, IL-8, TNF-α and nuclear factor-kappa B(NF-κB) was detected by realtime quantitative polymerase chain reaction. Western blotting was used to detect the protein expression of NF-κB and inhibitor of kappa B. RESULTS Acute inflammation occurred in the mice administered DSS, including the symptoms of losing body weight, loose feces/watery diarrhea and presence of fecal blood; all these symptoms worsened at 7 d. The colons of mice treated with DSS were assessed by histological examination, and the results confirmed that acute inflammation had occurred, as evidenced by loss of colonic mucosa and chronic inflammatory cell infiltration, and these features extended into the deeper layer of the colon walls. The expression levels of IL-1β, IL-8 and TNF-α in the DSS group were higher than those in the control group(P < 0.05), and the expression levels of IL-1β, IL-8 and TNF-α in the JPQCD and 5-ASA groups were lower than those in the DSS group after treating with JPQCD and 5-ASA. Comparing with the DSS group, the mR NA level of IL-1β, IL-8, TNF-α and NF-κB was significantly reduced by 5-ASA and JPQCD. The difference between JPQCD and 5-ASA groups was not statistically significant(P > 0.05). Comparing with the DSS group, due to using JPQCD and 5-ASA, significant suppression of activation in DSSinduced NF-κB and increased phosphorylation of IκB in mice with experimental colitis occurred(P < 0.05). The difference between the JPQCD group and the 5-ASA group was not statistically significant(P > 0.05). CONCLUSION Activation of the NF-κB signaling pathway is inhibited by JPQCD, which shows the potential mechanism by which JPQCD treats UC.Lie Zheng Ya-Li Zhang Yan-Cheng Dai Xuan Chen De-Liang Chen Yue-Ting Dai Zhi-Peng Tang 2017World Journal of Gastroenterology2017,23,7:30
2Jianpi Qingchang decoction regulates intestinal motility of dextran sulfate sodium-induced colitis through reducing autophagy of interstitial cells of Cajal显示文摘AIM To investigate the underlying effect of Jianpi Qingchang decoction(JQD) regulating intestinal motility of dextran sulfate sodium(DSS)-induced colitis in mice. METHODS C57BL/6 mice were randomly divided into four groups: the control group, the DSS group, the JQD group, and the 5-aminosalicylic acid group. Except for the control group, colitis was induced in other groups by giving distilled water containing 5% DSS. Seven days after modeling, the mice were administered corresponding drugs intragastrically. The mice were sacrificed on the 15^(th) day. The disease activity index, macroscopic and histopathologic lesions, and ultrastructure of colon interstitial cells of Cajal(ICC) were observed. The levels of tumor necrosis factor-alpha(TNF-α), interleukin(IL)-1β, IL-10 and interferon gamma(IFN-γ), the expression of nuclear factor-kappa B(NF-κB) p65, c-kit, microtubule-associated protein 1 light chain 3(LC3-Ⅱ) and Beclin-l m RNA, and the colonic smooth muscle tension were assessed. RESULTS Acute inflammation occurred in the mice administered DSS. Compared with the control group, the levels of IL-1β, TNF-α, IL-10 and IFN-γ, the expression of LC3-Ⅱ, Beclin-1 and NF-κB p65 m RNA, and the contractile frequency increased(P < 0.05), the expression of c-kit m RNA and the colonic smooth muscle contractile amplitude decreased in the DSS group(P < 0.05). Compared with the DSS group, the levels of IL-10 and IFN-γ, the expression of c-kit m RNA, and the colonic smooth muscle contractile amplitude increased(P < 0.05), the levels of TNF-α and IL-1β, the expression of LC3-Ⅱ, Beclin-1 and NF-κB p65 m RNA, and the contractile frequency decreased in the JQD group(P < 0.05).CONCLUSION JQD can regulate the intestinal motility of DSS-induced colitis in mice through suppressing intestinal inflammatory cascade reaction, reducing autophagy of ICC, and regulating the network path of ICC/smooth muscle cells.Yan-Cheng Dai Lie Zheng Ya-Li Zhang Xuan Chen De-Liang Chen Li-Juan Wang Zhi-Peng Tang 2017World Journal of Gastroenterology2017,23,26:26
3Natural history of covert hepatic encephalopathy: An observational study of 366 cirrhotic patients显示文摘AIM To explore the natural history of covert hepatic encephalopathy(CHE) in absence of medication intervention.METHODS Consecutive outpatient cirrhotic patients in a Chinese tertiary care hospital were enrolled and evaluated for CHE diagnosis. They were followed up for a mean of 11.2 ± 1.3 mo. Time to the first cirrhosis-related complications requiring hospitalization, including overt HE(OHE), resolution of CHE and death/transplantation, were compared between CHE and no-CHE patients. Predictors for complication(s) and death/transplantation were also analyzed.RESULTS A total of 366 patients(age: 47.2 ± 8.6 years, male: 73.0%) were enrolled. CHE was identified in 131 patients(35.8%). CHE patients had higher rates of death and incidence of complications requiring hospitalization, including OHE, compared to unimpaired patients. Moreover, 17.6% of CHE patients developed OHE, 42.0% suffered persistent CHE, and 19.8% of CHE spontaneously resolved. In CHE patients, serum albumin < 30 g/L(HR = 5.22, P = 0.03) was the sole predictor for developing OHE, and blood creatinine > 133 μmol/L(HR = 4.75, P = 0.036) predicted mortality. Child-Pugh B/C(HR = 0.084, P < 0.001) and OHE history(HR = 0.15, P = 0.014) were predictors of spontaneous resolution of CHE.CONCLUSION CHE exacerbates, persists or resolves without medication intervention in clinically stable cirrhosis. Triage of patients based on these predictors will allow for more cost-effect management of CHE.An-Jiang Wang A-Ping Peng Bi-Min Li Na Gan Li Pei Xue-Lian Zheng Jun-Bo Hong Hai-Ying Xiao Jia-Wei Zhong Xuan Zhu 2017World Journal of Gastroenterology2017,23,34:22
4Ursolic acid inhibits proliferation and induces apoptosis of HT-29 colon cancer cells by inhibiting the EGFR/MAPK pathway显示文摘Objective: To investigate the effects of ursolic acid on the proliferation and apoptosis of human HT-29 colon cancer cells. Methods: 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and flow cytometry assays were performed to evaluate the effects of ursolic acid on the growth and apoptosis of HT-29 cells. Western blot analysis was applied to investigate the inhibitory effects of ursolic acid on the phosphorylation of the epidermal growth factor receptor (EGFR), extracellular signal-regulated kinase (ERK), c-Jun N-terminal kinase (JNK), and p38 mitogen-activated protein kinase (p38 MAPK), and the activity of B cell leukemia-2 (Bcl-2), B cell leukemia-xL (Bcl-xL), caspase-3, and caspase-9. Results: Ursolic acid inhibited the growth of HT-29 cells in dose- and time-dependent manners. The median inhibition concentration (IC50) values for 24, 48, and 72 h treatment were 26, 20, and 18 μmol/L, respectively. The apoptotic rates of 10, 20, and 40 μmol/L ursolic acid treatments for 24 h were 5.74%, 14.49%, and 33.05%, and for 48 h were 9%, 21.39%, and 40.49%, respectively. Ursolic acid suppressed the phosphorylation of EGFR, ERK1/2, p38 MAPK, and JNK, which is well correlated with its growth inhibitory effect. 10, 20, and 40 μmol/L ursolic acid significantly inhibited the proliferation of EGF-stimulated HT-29 cells (P<0.05). Cell proliferation was most significantly inhibited when treated with 10 and 20 μmol/L ursolic acid combined with 200 nmol/L AG 1478 or 10 μmol/L U0126 (P<0.01). Besides, it also down-regulated the expression of Bcl-2 and Bcl-xL and activated caspase-3 and caspase-9. Conclusion: Ursolic acid induces apoptosis in HT-29 cells by suppressing the EGFR/MAPK pathway, suggesting that it may be a potent agent for the treatment of colorectal cancer.Jian-zhen SHAN Yan-yan XUAN Shu ZHENG Qi DONG Su-zhan ZHANG 2009Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2009,10,9:19
5Kaempferol protects ethanol-induced gastric ulcers in mice via pro-inflammatory cytokines and NO显示文摘胃的溃疡(GU ) 是在全世界影响许多人的普通病理。过多的白酒消费是 GU 的主要原因之一;然而,仍然有为 GU 的预防或治疗的有效的药的缺乏。在这研究,我们在老鼠把保护的效果和 kaempferol (KAE ) 的可能的机制与尖锐导致乙醇的损害作比较到胃的 mucosa。Fasted 老鼠口头上地被给车辆(0.9% 盐) , omeprazole (20 mg/kg ) ,或为在在由有绝对乙醇(10 ml/kg ) 的挑战的 GU 模型的建立以前的不同试验性的集合的 1 h 的 KAE (40, 80,或 160 mg/kg ) 。动物是 euthanized 在乙醇吸入以后的 1 h,和他们的血浆和胃纸巾服从于进一步的检查。宏观、显微镜的损害,和免疫学的和生物化学的参数被观察。发炎的效果用下列指示物被调查:肿瘤坏死因素 --(TNF-) , interleukin-1 (IL-1 ) , IL-6, myeloperoxidase (军邮局) ,和氮的氧化物(没有) 。结果证明 KAE 显著地减少了溃疡索引,增加了预防索引,完全保护了 mucosa 免受损害,和保存胃的 mucosal glycoprotein 的伤害。KAE 减少了军邮局活动和支持 inflammatory cytokine (TNF- ,和 IL-1 ) 铺平,并且没改进层次。KAE 的 gastroprotective 活动可能被归因于胃的有粘液的 glycoproteins 层次的保藏,这样由禁止嗜中性的累积和军邮局活动,调整支持 inflammatory cytokines 的层次,并且不改进生产。Qinchen Li Xinxin Hu Yanhan Xuan Jianghua Ying Yujia Fei Jielu Rong Yong Zhang Jian Zhang Chunyan Liu Zheng Liu 2018Acta Biochimica et Biophysica Sinica2018,50,3:18
6The influence of stage at diagnosis and molecular subtype on breast cancer patient survival: a hospital.based multi.center study显示文摘Background: Stage at diagnosis and molecular subtype are important clinical factors associated with breast cancer patient survival. However, subgroup survival data from a large study sample are limited in China.To estimate the survival differences among patients with different stages and various subtypes of breast cancer, we conducted a hospital-based multi-center study on breast cancer in Beijing, China.Methods: All resident patients diagnosed with primary, invasive breast cancer between January 1,2006 and December 31,2010 from four selected hospitals in Beijing were included and followed up until December 31,2015. Hospitalbased data of stage at diagnosis, hormone receptor status, and selected clinical characteristics, including body mass index(BMI), menopausal status, histological grade, and histological type, were collected from the medical records of the study subjects. Overall survival(OS) and cancer-specific survival(CSS) were estimated. Cox proportional hazards models were employed to evaluate the associations of stage at diagnosis and molecular subtype with patient survival.Results: The 5-year OS and CSS rates for all patients were 89.4% and 90.3%. Survival varied by stage and molecular subtype. The 5-year OS rates for patients with stage I, Ⅱ, Ⅲ, and IV diseases were 96.5%, 91.6%, 74.8%, and 40.7%,respectively, and the corresponding estimates of 5-year CSS rates were 97.1%, 92.6%, 75.6%, and 42.7%, respectively.The 5-year OS rates for patients with luminal A, luminal B, HER2, and triple-negative subtypes of breast cancer were92.6%, 88.4%, 83.6%, and 82.9%, respectively, and the corresponding estimates of 5-year CSS rates were 93.2%, 89.1 %,85.4%, and 83.5%, respectively. Multivariate analysis showed that stage at diagnosis and molecular subtype were important prognostic factors for breast cancer.Conclusions: Survival of breast cancer patients varied significantly by stage and molecular subtype. Cancer screening is encouraged for the early detection and early diagnosis of breast cancer. More advanced therapies and health care policies are needed on HER2 and triple-negative subtypes.Tingting Zuo Hongmei Zeng Huichao Li Shuo Liu Lei Yang Changfa Xia Rongshou Zheng Fei Ma Lifang Liu Ning Wang Lixue Xuan Wanqing Chen 2017Chinese Journal of Cancer2017,36,11:18
7Expression of p-STAT3 and vascular endothelial growth factor in MNNG-induced precancerous lesions and gastric tumors in rats显示文摘AIM: To investigate the dynamic expression of p-signal transducer and activator of transcription 3(STAT3) and vascular endothelial growth factor(VEGF) in the formation of gastric tumors induced by drinking water containing N-methyl-N'-nitro-N-nitrosoguanidine(MNNG) in Wistar rats.METHODS: One hundred and twenty Wistar rats were randomly divided into two groups(60 in each group): Control group and Model group. The rats in each group were then randomly divided into three groups(20 in each group): C/M15, C/M25 and C/M40(15, 25 and 40 represent the number of feeding weeks from termination). Rats in the control group received normal drinking water and rats in the model group received drinking water containing 100 μg/m L MNNG. Stomach tissues were collected at the end of the 15 th, 25 th and 40 th week, respectively, for microscopic measurement using hematoxylin and eosin staining. The expression of p-STAT3 and VEGF in different pathological types of gastric tissue, including normal, inflammation, atrophy, hyperplasia and gastric stromal tumor, was observed by immunohistochemistry and Western blot, and the corelation between p-STAT3 and VEGF was analyzed. RESULTS:(1) The expression of p-STAT3 in tissue with gastritis, atrophy, dysplasia and gastric stromal tumor were significantly increased in the model group compared with the control group(2.5 ± 1.0, 2.75 ±0.36, 6.2 ± 0.45, 5.67 ± 0.55 vs 0.75 ± 0.36, P = 0.026, 0.035, 0.001, 0.002, respectively); the expression of p-STAT3 in tissue with dysplasia was higher than that in samples with gastritis or atrophy(6.2 ± 0.45 vs 2.5 ± 1.0, P = 0.006; 6.2 ± 0.45 vs 2.75 ± 0.36, P = 0.005, respectively); however, the expression of p-STAT3 in gastritis and atrophy was not significantly different(P > 0.05);(2) the expression of VEGF in tissue with gastritis, atrophy, dysplasia and gastric stromal tumor was significantly increased in the model group compared with normal gastric mucosa; and the expression of VEGF in tissue with dysplasia was higher than that in tissue with inflammation and atrophy(10.8 ± 1.96 vs 7.62 ± 0.25, P = 0.029; 10.8 ± 1.96 vs 6.26 ± 0.76, P = 0.033, respectively); similarly, the expression of VEGF in tissue with gastritis and atrophy was not significantly different(P > 0.05); and(3) the expression of VEGF was positively correlated with p-STAT3. CONCLUSION: p-STAT3 plays an important role in gastric cancer formation by regulating the expression of VEGF to promote the progression of gastric tumor from gastritis.Xiao-Yan Wang Lou-Lei Wang Xuan Zheng Li-Na Meng Bin Lyu Hai-Feng Jin 2016World Journal of Gastrointestinal Oncology2016,8,3:14
8运用气相色谱-嗅觉测量法和气质联用法分析三个桂花品种的香气活性物质(英文)显示文摘研究目的:分析不同桂花品种感官评价差异所对应的香气成分,及其有贡献的香气活性物质,为桂花的生物科学应用提供依据。创新要点:首次运用气相色谱-嗅觉测量法(GC-O)结合气质联用法(GC-MS)对所分离的挥发性物质进行定性和半定量分析,并同时结合其气味描述,分析不同桂花品种的香气活性物质特征。本研究还根据所检测的香气活性物质的气味特征对香气活性物质进行分组,能更直观地分析桂花不同品种香气差异的原因。研究方法:(1)运用GC-MS对三个桂花品种的挥发性物质进行定性和半定量的比较分析(见表1);(2)运用GC-O对三个桂花品种香气活性物质进行比较分析(见表2);(3)对香气活性物质进行分组,探究不同桂花品种的香气差异原因(见表3和图2)。重要结论:(1)GC-O结合GC-MS分析所得香气活性物质并非都是含量较高的挥发性物质,有些含量较低的挥发性物质也对桂花香气形成有贡献;(2)不同桂花品种的香气差异是由不同香气分组以及香气活性物质强度不同所致。Xuan CAI Rong-zhang MAI Jing-jing ZOU Hong-yan ZHANG Xiang-ling ZENG Ri-ru ZHENG Cai-yun WANG 2014Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2014,15,7:12
9Removal of adhesive dusts from flue gas using corona discharges with spraying water显示文摘Effective removal of adhesive and fine dusts from flue gas is very difficult. A new method of electrostatic precipitation of the corona discharges with spraying water(CDSW) was introduced. A new electrode configuration and the circulation spraying of water were employed in the method. The efficient electrostatic precipitation for adhesive and fine dusts can be accomplished without any drain water during a long operating period. The fundamental structure, discharge characteristics, mechanism of spraying and precipitation principle of the electrostatic precipitation using CDSW were described and analyzed. The V I characteristics, spraying state, supplying water quantity, influence of temperature and clean of the electrodes were researched in series experiments. The treating effects of circulating spraying using the corona plasma at the same time of electrostatic precipitation were investigated. The fundamental theories and experimental data were proposed, in order to effectively remove the adhesive dusts from flue gas using CDSW in practice.XU De\|xuan, ZHAO Jian\|wei, DING Yun\|zheng, GE Wei\|li (Department of Environmental Science and Engineering, Northeast Normal University, Changchun 130024, China. 2003Journal of Environmental Sciences2003,15,4:11
10Association between the presence of H pylori in the liver and hepatocellular carcinoma: A meta-analysis显示文摘AIM: To evaluate the arguments for and against the possible roles of H pylori in hepatocellular carcinoma (HCC). METHODS: We performed a systematic review of all relevant studies published in the literature. A total of 103 clinical trials and reports were identified, but only 10 trials qualified under our selection criteria. A meta-analysis was carried out by a biostatistician according to the Cochrane Reviewers’ Handbook recommended by The Cochrane Collaboration.RESULTS: Nine case-control studies and one retrospective cross sectional study were included in the final analysis. Overall the prevalence of H pylori infection was 53.3% (129 of 242) in cases and 10.4% (29 of 280) in controls, and the summary odds ratio for the association of H pylori infection with the risk for HCC (using the fixed-effects model, which accounted for the homogeneity across the 10 studies) was determined to be 13.63 (95% CI, 7.90-23.49).CONCLUSION: Our analysis showed a positive association between H pylori infection and the risk of HCC, with an indication of possible publication bias and possible confounders due to study designs that showed results of less pronounced associations.Shi-Ying Xuan Yong-Ning Xin An-Jin Chen Quan-Jiang Dong Xin Qiang Ning Li Ming-Hua Zheng Hua-Shi Guan 2008World Journal of Gastroenterology2008,14,2:10
11Comparative proteogenomic analysis of the Leptospira interrogans virulence-attenuated strain IPAV against the pathogenic strain 56601显示文摘稀释毒力的螺旋体 interrogans serovar Lai 紧张 IPAV 被延长实验室经过从在中国孤立的高度剧毒的祖先的紧张导出。我们学习了 IPAV 的基因变化对病原的 L 经由比较分析使它变为无毒害。interrogans serovar Lai 紧张 56601。IPAV 紧张的完全的染色体顺序决心、使用与作比较,然后修正并且重新注解紧张 56601 的染色体顺序。除了他们的高度类似的 genomic,结构和基因顺序, 33 插入的一个总数, 53 删除和 301 个单个核苷酸的变化(SNV ) 在整个直接影响 101 基因的 IPAV 的染色体被检测,在他们的 5 ′ 的任何一个;在上游的区域或在他们的编码区域以内。在他们之中, 44 功能的基因的多数涉及信号 transduction,压力反应, transmembrane 运输和氮新陈代谢。基于量的液体,层析(LC )-MS/MS 数据揭示了的比较 proteomic 分析在 orthologs 的 1 627 选择的对之中,在 IPAV 的 174 基因拉紧,这是 upregulated,与主要在精力的班上的丰富生产和类脂化合物新陈代谢。相反,在紧张 56601 的 228 基因是 upregulated,与在蛋白质翻译和 DNA 复制 / 修理的范畴充实的多数。 genomic 和 proteomic 途径的联合在批评基因说明了那改变的表情或变化,例如编码 Ser/Thr kinase ,碳饥饿蛋白质 CstA ,夫酸安合成酶,GTP有约束力的蛋白质 BipA , ribonucleotide-diphosphate reductase 和磷酸盐 transporter 的那些,并且在脂蛋白或外部膜蛋白质的翻译侧面的改变是可能的在紧张 IPAV 说明毒力变细。Yi Zhong Xiao Chang Xing-Jun Cao Yan Zhang Huajun Zheng Yongzhang Zhu Chengsong Cai Zelin Cui Yunyi Zhang Yuan-Yuan Li Xiu-Gao Jiang Guo-Ping Zhao Shengyue Wang Yixue Li Rong Zeng Xuan Li Xiao-Kui Guo 2011Cell Research2011,21,8:10
12Contribution and underlying mechanisms of CXCR4 overexpression in patients with systemic lupus erythematosus显示文摘Aberrant expression of CXCR4 has been indicated to play a role in the pathogenesis of systemic lupus erythematosus(SLE),but the mechanism of CXCR4 dysregulation in SLE is unclear.This study is aimed to explore the clinical significance and possible mechanisms of abnormal CXCR4 expression on B cells from patients with untreated SLE.Expression of CXCR4 on peripheral B cells was determined by flow cytometry and western blotting.Freshly isolated B cells were cultured with exogenous interleukin 21(IL-21)in the presence or absence of CD40 ligand(CD40L)plus anti-IgM antibody(aIgM),and changes in CXCR4 expression were detected.Involvement of phosphatidylinositol 3 kinase(PI3K)/Akt and Janus kinase/Signal transducer and activator of transcription(JAK/STAT)signaling pathways was assessed by adding blocking agents Ly294002 and AG490.Since CD63 is reported to mediate endosomal recruitment of CXCR4 and BCL6 is capable of silencing CD63 gene transcription,we also measured BCL6 and CD63 gene transcription with real-time PCR.It was shown that CXCR4 expression on B cells was significantly upregulated in SLE patients,especially in those with lupus nephritis,and was positively correlated with SLE Disease Activity Index scores and negatively with the serum complement 3 levels(Po0.05).Downregulation of CXCR4 by IL-21 was intact.In contrast,a similar effect of aIgM plus CD40L in downregulating CXCR4 expression was defective in SLE patients but was restored by co-stimulation with IL-21 in vitro.Both Ly294002 and AG490 promoted downregulation of surface CXCR4 expression on B cells from SLE patients(P=0.078 and P=0.064).Furthermore,B cells from SLE patients exhibited diminished CD63 mRNA and enhanced BCL6 mRNA expression(both Po0.05).To sum up,CXCR4 was overexpressed on SLE B cells,positively correlating with disease activity and kidney involvement.Overactivation of the PI3K/Akt and JAK/STAT pathways as well as defective CD63 synthesis may contribute to CXCR4 dysregulation in SLE.Li-dan Zhao Di Liang Xiang-ni Wu Yang Li Jing-wen Niu Chen Zhou Li Wang Hua Chen Wen-jie Zheng Yun-yun Fei Fu-lin Tang Yong-zhe Li Feng-chun Zhang Wei He Xue-tao Cao Xuan Zhang 2017Cellular & Molecular Immunology2017,14,10:10
13Whole-Genome Resequencing of a Worldwide Collection of Rapeseed Accessions Reveals the Genetic Basis of Ecotype Divergence显示文摘Rapeseed (Brassica napus),an important oilseed crop,has adapted to diverse climate zones and latitudes by forming three main ecotype groups,namely winter,semiwinter,and spring types. However,genetic variations underlying the divergence of these ecotypes are largely unknown. Here,we report the global pattern of genetic polymorphisms in rapeseed determined by resequencing a worldwide collection of 991 germplasm accessions.A total of 5.56 and 5.53 million singlenucleotide polymorphisms (SNPs)as Well as 1.86 and 1.92 million InDels were identified by mapping reads to the reference genomes of 'Darmor-bzh'and 'Tapidor,'respectively.We generated a map of allelic drift paths that shows splits and mixtures of the main populations,and revealed an asymmetric evolution of the two subgenomes of B.napus by calculating the genetic diversity and linkage disequilibrium parameters.Selective-sweep analysis revealed genetic changes in genes orthologous to those regulating various aspects of plant development and response to stresses.A genome-wide association study identified SNPs in the promoter regions of FLOWERING LOCUS T and FLOWERING LOCUS C orthologs that corresponded to the different rapeseed ecotype groups. Our study provides important insights into the genomic footprints of rapeseed evolution and flowering-time divergence among three ecotype groups,and will facilitate screening of molecular markers for accelerating rapeseed breeding.Dezhi Wu Zhe Liang Tao Yan Ying Xu Lijie Xuan Juan Tang Gang Zhou Ulrike Lohwasser Shuijin Hua Haoyi Wang Xiaoyang Chen Qian Wang Le Zhu Antony Maodzeka Nazim Hussain Zhilan Li Xuming Li Imran Haider Shamsi Ghulam Jilani Linde Wu Hongkun Zheng Guoping Zhang Boulos Chalhoub Lisha Shen Hao Yu Lixi Jiang 2019Molecular Plant2019,12,1:10
14Acupoint Catgut Embedding Alleviates Insomnia in Different Chinese Medicine Syndrome Types: A Randomized Controlled Trial显示文摘Objective: To investigate the effects and safety of catgut embedding on alleviating insomnia. Methods: Totally 510 patients with insomnia were divided into 5 Chinese medicine(CM) syndrome types: Xin(Heart) and Pi(Spleen) deficiency, yin deficiency with excess fire, Xin and gut qi deficiency, Wei(Stomach) disorder, and qi and blood deficiency, respectively. These 5 types of patients were randomly assigned to a catgut embedding group, an acupuncture group or a medication group(30 cases in Xin and Pi deficiency type, Wei disorder type, Xin and gut qi deficiency type, respectively;40 cases in yin deficiency with excess fire type and qi and blood deficiency type, respectively). In the catgut embedding group, patients were treated by implanting catgut into acupoints once every 10 days for a total of 30 days. In the acupuncture group, patients were treated with acupuncture once per day over 30 days(excluding weekends);and patients in the medication group took 1 mg Eurodin Tablet orally every night for 30 days. Pittsburgh Sleep Quality Index(PSQI) was evaluated before treatment, on 30 and 60 days after the first treatment, respectively. The International Unified Sleep Efficiency Value(IUSEV) was measured at 30 and 60 days. The safety was evaluated after treatment and adverse events were analyzed. Results: The objective PSQI scores including subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbance, daytime dysfunction, and total scores at 30 days were significantly improved compared with pre-treatment in the catgut embedding and acupuncture groups(P<0.01 or P<0.05). At 30 days, the PSQI scores in catgut embedding group were superior to the medication group in the patients with each type of insomnia, with the exception of sleep duration(P<0.01 or P<0.05). At 60 days, significant differences were found between the catgut embedding group and the medication group(P<0.01 for all indices). The IUSEV scores in the catgut embedding group were significantly higher than the acupuncture group at 60 days, and the scores in acupuncture group were higher than the medication group at 30 days(P<0.05 for all types). No severe adverse events were found in this study. Conclusions: Acupoint catgut embedding and acupuncture were more effective than medication in alleviating insomnia syndrome in different Chinese medicine syndrome type. However, the sustained effects of acupoint catgut embedding were superior to acupuncture.XU Fu XUAN Li-hua ZHOU Hai-jiang CHEN Fei-yu ZHENG Zhao-jian BI Ying WU Xiang 2019Chinese Journal of Integrative Medicine2019,25,7:9
15Factors affecting occurrence of gastric varioliform lesions: A case-control study显示文摘AIM: To investigate the factors influencing the occurrence of gastric varioliform lesions(GVLs) and their possible link with gastric cancer.METHODS: A 1:1 matched case-control study was performed to retrospectively analyze data from 1638 chronic gastritis patients who had undergone gastroscopy at one of two Chinese hospitals between 2009 and 2014. Patients with GVLs(cases) were compared to those without such lesions(controls). Endoscopic and pathological findings were recorded, along with interview information on Helicobacter pylori(H. pylori) infection, medical, drug and family histories, lifestyle and eating habits. The association between each factor and the occurrence of GVLs was estimated, and then multivariate conditional logistic regression was used to evaluate the independent factors.RESULTS: The frequency and severity of glandular atrophy, intestinal metaplasia(IM) and low-grade intraepithelial neoplasia were significantly increased in the GVL group(P < 0.01). Overall analysis showed that H. pylori infection [3.051(2.157, 4.317), P <0.001], allergic respiratory diseases [3.636(2.183, 6.055), P < 0.001], work-related stress [2.019(1.568, 2.600), P < 0.001], irregular meals [2.300(1.462, 3.619), P < 0.001], high intake of spicy food [1.754(1.227, 2.507), P = 0.002] and high intake of fresh fruit [0.231(0.101, 0.529), P = 0.001] were significantly correlated with the occurrence of GVLs(positively, except for the latter). Stratified analyses indicated that pickled food consumption in patients over 50 years old [7.224(2.360, 22.115), P = 0.001] and excessive smoking in men [2.013(1.282, 3.163), P = 0.002] were also positively correlated, and that, for antral GVLs, vegetable consumption [0.491(0.311, 0.776), P = 0.002] was negatively correlated. CONCLUSION: Seven risk factors and two protective factors are determined for GVLs, which were found to be associated with premalignant abnormalities.Tian-Hui Zou Ru-Hua Zheng Qin-Yan Gao Xuan Kong Xiao-Yu Chen Zhi-Zheng Ge Ying-Xuan Chen Xiao-Ping Zou Jing-Yuan Fang 2016World Journal of Gastroenterology2016,22,22:9
16A phenolic glycoside from Fagopyrum dibotrys (D.Don) Hara显示文摘A new phenolic constituent along with five known compounds were isolated from Fagopyrum dibotrys(D.Don)Hara.The new compound was characterized as 1,3-dimethoxy-2-O-β-xylo-pyranosyl-5-O-β-glucopyranosyl-benzene,by spectroscopic analysis and enzymatic hydrolysis.Zheng Zhong Bai Xiao Hui Zhang Li Jiang Xuan Feng Kui Mo 2007Chinese Chemical Letters2007,18,9:8
17Involvement of the Mitochondrion-dependent and the Endoplasmic Reticulum Stress-signaling Pathways in Isoliquiritigenin-induced Apoptosis of HeLa Cell显示文摘Objective Isoliquiritigenin(ISL),a licorice chalconoid,is considered to be a bioactive agent with chemopreventive potential.This study investigates the mechanisms involved in ISL-induced apoptosis in human cervical carcinoma HeLa cells.Methods Cell viability was evaluated using a 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide(MTT)assay.Apoptosis was determined by flow cytometry using an Annexin V-FITC Apoptosis Detection Kit.The intracellular ROS levels were assessed using a 2,7-dichlorofluorescein probe assay.The mitochondrial membrane potential was measured with the dual-emission potential-sensitive probe 5,5',6,6'-tetra-chloro-1,1',3,3'-tetraethyl-imidacarbocyanine iodide(JC-1).The degradation of poly-ADP-ribose polymerase(PARP)protein,the phosphorylation of PKR-like ER kinase(PERK),the phosphorylation of the α-subunit of eukaryotic initiation factor 2(eIF2α),the expression of the 78 kD glucose-regulated protein(GRP 78),and the activation of caspase-12 were analyzed via western blot analysis.Results ISL significantly inhibited the proliferation,the increase in ROS levels and apoptotic rates of HeLa cells in a concentration-dependent manner.Moreover,ISL induced mitochondrial dysfunction,caspase activation,and PARP cleavage,which displayed features of mitochondria dependent on apoptotic signals.Besides,exposure of HeLa cells to ISL triggered endoplasmic reticulum(ER)stress,as indicated by the increase in p-eIF2α and GRP78 expression,ER stress-dependent apoptosis is caused by the activation of ER-specific caspase-12.Conclusion The findings from our study suggest that ISL-induced oxidative stress causes HeLa cell apoptosis via the mitochondrion-dependent and the ER stress-triggered signaling pathways.YUAN Xuan ZHANG Bo GAN Lu WANG Zhen Hua YU Ba Cui LIU Liang Liang ZHENG Qiu Sheng WANGZhi Ping 2013Biomedical and Environmental Sciences2013,26,4:8
18Optimization of Protein Extraction and Decoloration Conditions for Tea Residues显示文摘To optimize alkaline method for extracting proteins from tea residue(TR), the effect of extraction conditions on tea protein extraction rate(TPER) was investigated. Single factor experiment showed the extraction temperature 80 °C, extraction time 100 min, p H value 13 and liquid–solid ratio 40:1 as the optimal extraction conditions. The orthogonal test revealed that the maximum TPER reached 29.71% under the following optimal combination of conditions: extraction temperature 70 °C, extraction time 60 min, p H 12 and liquid–solid ratio 50:1. For optimizing the purification of tea residue proteins, isoelectric point precipitation(p I), ammonium sulfate precipitation(a S) and isoelectric point plus ammonium sulfate precipitation(i PAS) were compared. The result showed that the highest protein precipitation rate(PPR) was 89.70% which was generated by using i PAS. Furthermore, powdered activated carbon was chosen as the most suitable decolorant for the extracted proteins.CUI Qiaoyun NI Xinghong ZENG Liang TU Zheng LI Jin SUN Kang CHEN Xuan LI Xinghui 2017Horticultural Plant Journal2017,3,4:8
19Association of Overlapped and Un-overlapped Comorbidities with COVID-19 Severity and Treatment Outcomes: A Retrospective Cohort Study from Nine Provinces in China显示文摘Objective Several COVID-19 patients have overlapping comorbidities. The independent role of each component contributing to the risk of COVID-19 is unknown, and how some non-cardiometabolic comorbidities affect the risk of COVID-19 remains unclear.Methods A retrospective follow-up design was adopted. A total of 1,160 laboratory-confirmed patients were enrolled from nine provinces in China. Data on comorbidities were obtained from the patients’ medical records. Multivariable logistic regression models were used to estimate the odds ratio(OR) and 95% confidence interval(95% CI) of the associations between comorbidities(cardiometabolic or non-cardiometabolic diseases), clinical severity, and treatment outcomes of COVID-19.Results Overall, 158(13.6%) patients were diagnosed with severe illness and 32(2.7%) had unfavorable outcomes. Hypertension(2.87, 1.30–6.32), type 2 diabetes(T2 DM)(3.57, 2.32–5.49),cardiovascular disease(CVD)(3.78, 1.81–7.89), fatty liver disease(7.53, 1.96–28.96), hyperlipidemia(2.15, 1.26–3.67), other lung diseases(6.00, 3.01–11.96), and electrolyte imbalance(10.40, 3.00–26.10)were independently linked to increased odds of being severely ill. T2 DM(6.07, 2.89–12.75), CVD(8.47,6.03–11.89), and electrolyte imbalance(19.44, 11.47–32.96) were also strong predictors of unfavorable outcomes. Women with comorbidities were more likely to have severe disease on admission(5.46,3.25–9.19), while men with comorbidities were more likely to have unfavorable treatment outcomes(6.58, 1.46–29.64) within two weeks.Conclusion Besides hypertension, diabetes, and CVD, fatty liver disease, hyperlipidemia, other lung diseases, and electrolyte imbalance were independent risk factors for COVID-19 severity and poor treatment outcome. Women with comorbidities were more likely to have severe disease, while men with comorbidities were more likely to have unfavorable treatment outcomes.MA Yan ZHU Dong Shan CHEN Ren Bo SHI Nan Nan LIU Si Hong FAN Yi Pin WU Gui Hui YANG Pu Ye BAI Jiang Feng CHEN Hong CHEN Li Ying FENG Qiao GUO Tuan Mao HOU Yong HU Gui Fen HU Xiao Mei HU Yun Hong HUANG Jin HUANG Qiu Hua HUANG Shao Zhen JI Liang JIN Hai Hao LEI Xiao LI Chun Yan LI Min Qing LI Qun Tang LI Xian Yong LIU Hong De LIU Jin Ping LIU Zhang MA Yu Ting MAO Ya MO Liu Fen NA Hui WANG Jing Wei SONG Fang Li SUN Sheng WANG Dong Ting WANG Ming Xuan WANG Xiao Yan WANG Yin Zhen WANG Yu Dong WU Wei WU Lan Ping XIAO Yan Hua XIE Hai Jun XU Hong Ming XU Shou Fang XUE Rui Xia YANG Chun YANG Kai Jun YUAN Sheng Li ZHANG Gong Qi ZHANG Jin Bo ZHANG Lin Song ZHAO Shu Sen ZHAO Wan Ying ZHENG Kai ZHOU Ying Chun ZHU Jun Teng ZHU Tian Qing ZHANG Hua Min WANG Yan Ping WANG Yong Yan 2020Biomedical and Environmental Sciences2020,33,12:8
20Development and Preliminary Evaluation of a Double-cell Ozonesonde显示文摘Ozonesondes are widely used to obtain ozone concentration profiles from the surface to the upper atmosphere. A kind of double-cell ozonesonde has been developed at the Institute of Atmospheric Physics(IAP), Chinese Academy of Sciences(named the 'IAP ozonesonde') based on previous experience over the past 20 years of developing the singlecell GPSO3 ozonesonde. The IAP ozonesonde is of the Electrochemical Concentration Cell(ECC) type. A detailed description of the IAP ozonesonde is firstly provided in the present paper, followed by a presentation of results from a series of launches carried out to evaluate its performance. The analysis involved comparing its observations with measurements from the GPSO3 and ECC ozonesondes(Model type ENSCI-Z) as well as a Brewer spectrophotometer. The results showed that the IAP ozonesonde is a vast improvement over the GPSO3 ozonesonde, able to capture vertical ozone structures very well and in good agreement with ECC ozonesonde measurements. The average difference in the ozone partial pressure between the IAP and ECC ozonesondes was 0.3 mPa from the surface to 2.5 km, close to zero from 2.5 to 9 km and generally less than 1 mPa for layers higher than 9 km. The apparent deviation is likely caused by a decreasing pump flow rate in the IAP ozonesonde which needs further improvement. The total ozone amounts measured by the IAP ozonesonde profiles were highly comparable with the Brewer data with a relative difference of 6%. The development of the IAP ozonesonde and its strong performance will surely accelerate the process of conventional observations of ozone profiles over China in the near future as well as provide more data for ozone research in general.ZHANG Jinqiang XUAN Yuejian YAN Xiaolu LIU Mingyuan TIAN Hongmin XIA Xiang'ao PANG Li ZHENG Xiangdong 2014Advances in Atmospheric Sciences2014,31,4:7
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