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    题名 作者 年代 出处 被引量
1Prevalence of Nontraumatic Osteonecrosis of the Femoral Head and its Associated Risk Factors in the Chinese Population: Results from a Nationally Representative Survey显示文摘De-Wei Zhao Mang Yu Kai Hu Wei Wang Lei Yang Ben-Jie Wang Xiao-Hong Gao Yong-Ming Guo Yong-Qing Xu Yu-Shan Wei Si-Miao Tian Fan Yang Nan Wang Shi-Bo Huang Hui Xie Xiao-Wei Wei Hai-Shen Jiang Yu-Qiang Zang Jun Ai Yuan-Liang Chen Guang-Hua Lei Yu-Jin Li Geng Tia Zong-Sheng Li Yong Cao Li Ma 2015Chinese Medical Journal2015,,21:151
2Diver CE versus Guardwire Plus for thrombectomy in patients with inferior myocardial infarction:a trial of aspiration of thrombus during primary angioplasty for inferior myocardial infarction显示文摘背景不同可行、安全的 thrombectomy 和远侧的保护设备用 Diver CE 设备在临床的 practice.The 效率和附属物 thrombectomy 的安全被使用了( Invatec ,意大利 )对 Guardwire 正设备( Medtronic ,美国)在经皮的冠的干预(一种总线标准)与尖锐劣等的 ST-segment-elevation 心肌的梗塞( STEMI )在病人被作比较不到 12 个小时以前,在心肌的梗塞( TIMI )的 thrombolysis 流动分级 0~1 ,并且总计吸藏第二等的结束点被让结束心脏舒张的体积( LVEDV )室,左室喷射部分( LVEF )和包括死亡的主要不利心脏的事件(权标),心肌的梗塞,在 122 个病人的 30 days.Results A 总数的目标容器 revascularization 和击同等地被划分成 Diver CE 组和 Guardwire 正组,它到年龄是可比较的(( 60 ?????????汣灯摩杯敲????朠潲灵?潃据畬楳湯??湡獵?YAN Hong-bing WANG Jian LI Nan ZHU Xiao-ling GAO Hai AI Hui LI Xiang YE Ming CHI Yun-peng ZHANG Hong 2007Chinese Medical Journal2007,,7:29
3Shenfu Injection(参附注射液) Inhibits Inflammation in Patients with Acute Myocardial Infarction Complicated by Cardiac Shock显示文摘Objectives: To investigate the effect of Shenfu Injection(参附注射液, SFI) on inflammatory factors in patients with acute myocardial infarction complicated by cardiogenic shock(CS) treated with and intra-aortic balloon pump(IABP). Methods: This study enrolled 60 patients with ST-segment elevation myocardial infarction(STEMI) complicated by CS. Patients underwent IABP and emergency percutaneous coronary intervention(PCI) were randomly divided into two groups by random number table with 30 cases in each group, one given SFI treatment(100 m L/24 h), one not. The two groups were then compared in a clinical setting for left ventricular function, biochemical indicators and Inflammatory factors, including C-reactive proteins(CRP), interleukin-1(IL-1) and tumor necrosis factor alpha(TNF-α). Major adverse cardiac and cerebrovascular events(MACCE) events were compared between patients of the two groups both in-hospital and in follow-ups. Results: The IABP support treatment times of patients in the IABP+SFI group were significantly shorter than the IABP group(52.87±28.84 vs. 87.45±87.31, P=0.047). In the patients of the IABP+SFI group, the CRP peak appeared in 24 h after PCI operation. The CRP peak in the patients of the IABP+SFI group was significantly lower than that in the IABP group(31.27±3.93 vs. 34.62±3.47, P=0.001). The increases in range of TNF-α in the patients of the IABP+SFI group were significantly lower than those of the IABP group(182.29±22.79 vs. 195.54±12.02, P=0.007). The increases in range of IL-1 in the patients of the IABP+SFI group were significantly lower than those of the IABP group(214.98±29.22 vs. 228.60±7.03, P=0.019). The amplitude elevated TNF-α 72 h after admission was an independent risk factor of in-hospital MACCE events(OR 0.973, 95% CI 0.890–0.987, P=0.014) in patients with STEMI and CS. Conclusion: Patients with STEMI complicated by CS treated by IABP and SFI had a reduced inflammatory reaction, a reduced dependence of CS on IABP and shortened the course of disease.JIN Yan-yan GAO Hai ZHANG Xin-yong AI Hui ZHU Xiao-lin WANG Jing 2017Chinese Journal of Integrative Medicine2017,23,3:27
4Neighbor Sum Distinguishing Total Colorings of Graphs with Bounded Maximum Average Degree显示文摘A proper [h]-total coloring c of a graph G is a proper total coloring c of G using colors of the set [h]={1,2,...,h}.Letw(u) denote the sum of the color on a vertex u and colors on all the edges incident to u.For each edge uv∈E(G),if w(u)≠w(v),then we say the coloring c distinguishes adjacent vertices by sum and call it a neighbor sum distinguishing [h]-total coloring of G.By tndi(G),we denote the smallest value h in such a coloring of G.In this paper,we obtain that G is a graph with at least two vertices,if mad(G)<3,then tndi∑(G)≤k+2 where k=max{Δ(G),5}.It partially con?rms the conjecture proposed by Pil′sniak and Wozniak.Ai Jun DONG Guang Hui WANG 2014Acta Mathematica Sinica,English Series2014,30,4:24
5Role of Sclerostin in the Bone Loss of Postmenopausal Chinese Women with Type 2 Diabetes显示文摘Objective To evaluate the role of sclerostin in bone loss of postmenopausal Chinese women with type 2 diabetes mellitus.Methods The postmenopausal patients suffering from type 2 diabetes mellitus and age,body mass index,and duration of menopause matched healthy controls were enrolled into this cross-sectional study according to criteria of inclusion and exclusion.The serum sclerostin level and bone mineral density of the anterior-posterior lumbar spine(L1-L4),femoral neck,and total hip were determined by using a quantitative sandwich ELISA kit and dual X-ray absorptiometry,respectively.Meanwhile,the clinical and laboratory indexes of bone mineral metabolism were analyzed.Associations between serum sclerostin level and bone mineral density as well as bone turnover markers were evaluated by linear regression analysis.Results Finally,265 postmenopausal women with type 2 diabetes and 225 non-diabetic women were recruited in the diabetic group and control group,respectively.Serum sclerostin level of the diabetic group was significantly higher than that of the control group(48.2±19.4 vs.37.2±18.6 pmol/L,P<0.001)and was increased with age in both groups(diabetic group,r=0.374,P<0.001;control group,r=0.312,P<0.001).In type 2 diabetes patients,serum sclerostin concentration was positively correlated with hemoglobin A1c level(r=0.237;P=0.021).Biochemical bone turnover markers,intact parathyroid hormone and bone-specific alkaline phosphatase,were negatively associated with serum sclerostin level(r=0.138,P=0.078 and r=0.265,P<0.001).Conversely,the positive correlation between sclerostin and C-terminal cross-linking telopeptide of type I collagen was found in diabetic patients(r=0.354,P<0.001).Serum sclerostin levels of the diabetic group were positively correlated with bone mineral density of the lumbar spine,femoral neck,and total hip(r=0.324,0.367,and 0.416,respectively;all P<0.001).Conclusions Sclerostin might participate in the pathogenesis of bone loss of type 2 diabetes.The high sclerostin level might serve as a marker of increased osteocyte activity in postmenopausal patients with type 2 diabetes mellitus.Yi-jun Zhou Ai Li Yu-ling Song Hui Zhou Yan Li Yin-si Tang 2013Chinese Medical Sciences Journal2013,28,3:16
6An experimental study exploring the influencing factors for ultrasonic-assisted extraction of flavonoid compounds from leaves of Amorpha fruticosa L.显示文摘In this paper,the ultrasonic-assisted extraction process of flavonoid compounds from leaves of Amorpha fruticosa is optimized.In single factor experiments,solid/liquid ratios,ultrasonic power,ethanol concentrations and extraction cycles were experimental factors.Box–Behnken central composite design and RSM analyzed the effects of the four factors on the yield of total flavonoids.The optimal extraction parameters were solid/liquid ratio 1:50 g/mL,ultrasonic power 316 W,ethanol concentration 50%,4 extraction cycles.In the optimized condition,the estimated value of the regression model was 66.6456 mg/g while the measured value was 66.4329 mg/g.Jingyao Tian Siddique Muhammad Ai Chen Peng Chen Jinghong Wang Chengwu Yang Hui Yuan Zhensheng Wang 2019Journal of Forestry Research2019,30,5:14
7How we can improve patients’comfort after Milligan- Morgan open haemorrhoidectomy显示文摘AIM:To demonstrate the value of Diosmin(flavonidic fraction)in the management of post-haemorhoidectomic symptoms.METHODS:Eighty-six consecutive patients with grades ⅢandⅣacute mixed hemorrhoids admitted to the Anorectal Surgical Department of First Affiliated Hospital,Xinjiang Medical University from April 2009 to April 2010,were enrolled in this study.An observerblinded,randomized trial was conducted to compare post-haemorhoidectomic symptoms with use of Diosmin flavonidic fraction vs placebo.Eighty-six patients were randomly allocated to receive Diosmin flavonidic fraction 500 mg for 1 wk(n=43)or placebo(n=43).The Milligan-Morgan open haemorrhoidectomy was performed by a standardized diathermy excision method.Pain,bleeding,heaviness,pruritus,wound edema and mucosal discharge were observed after surgery.The postoperative symptoms and hospitalization time were recorded.RESULTS:The mean age of the Diosmin group and controls was 53.2 and 51.3 years,respectively.In Diosmin group,haemorrhoid piles were of the third degree in 33 patients and the fourth degree in 10;and in the control group,29 were of the third degree and 14 were of the fourth degree.There was no statistically significance in age,gender distribution,degree and number of excised haemorrhoid piles,and the mean duration of haemorrhoidal disease between the two groups.There was a statistically significant improvement in pain,heaviness,bleeding,pruritus from baseline to the 8th week after operation(P<0.05).Patients taking Diosmin had a shorter hospitalization stay after surgery(P< 0.05).There was also a significant improvement on the proctoscopic appearance(P<0.001).However,there was no statistical difference between the two groups in terms of wound mucosal discharge.Two patients experienced minor bleeding at the 8th week in Diosmin group,and underwent surgery.CONCLUSION:Diosmin is effective in alleviating postoperational symptoms of haemorrhoids.Therefore,it should be considered for the initial treatment after haemorrhoid surgery.However,further prospective randomized trials are needed to confirm the findings of this study.Ma-Mu-Ti-Jiang A ba-bai-ke-re Hong-Guo Huang Wen-Ni Re Kai Fan Hui Chu Er-Ha-Ti Ai Mai-Mai-Ti-Tu-Er-Xun KE Li-Mu Yi-Rui Wang Hao Wen 2011World Journal of Gastroenterology2011,17,11:13
8Predictors and in-hospital outcomes of preoperative acute kidney injury in patients with type A acute aortic dissection显示文摘BackgroundAcute 肾损害(AKI ) 在为尖锐大动脉的解剖(AAD ) 的外科以后是普通的并且增加在里面医院和长期的死亡。然而,很少数据与类型在病人在早外科手术前的 AKI 的临床、预示的关联上存在 AAD。我们试图在病人在在里面医院结果上决定外科手术前的 AKI 的发生和 AKI 的影响与打阿德梅索兹夫罗姆·梅 2009 到 2014 年 6 月,我们回顾地注册了为类型从症状发作和收到的开的外科在 48 h 以内进入我们的医院的 178 个病人 AAD。病人被划分成没有 AKI 和 AKI 组并且在 surgery.ResultsAKI 发生在 41 个病人(23.0%) 以前,根据 KDIGO 标准与 AKI 上演了严厉。在里面医院复杂并发症的发生在有与没有 AKI 相比的外科手术前的 AKI 的病人是显著地更高的(41.5% 对 9.5% , P <0.001 ) ,包括肾的梗塞(7.3% 对 0, P = 0.012 ) ,并且它与 AKI 严厉增加了(P 趋势 <0.001 ) 。尽管没有重要差别被发现,没有 AKI,有 AKI 的病人与病人相比有更高的在里面医院死亡(14.6% 对 5.1% , P = 0.079 ) 。Multivariate 分析显示那男性,承认上的心脏舒张的血压和双边的肾的动脉参与 AAD.ConclusionsEarly 是在有类型 A 的病人的外科手术前的 AKI 的独立预言者在外科前的 AKI 在有类型的病人是普通的 AAD,并且与增加的在里面医院复杂并发症被联系。男性,承认上的心脏舒张的血压和双边的肾的动脉参与是为外科手术前的 AKI 的主要预言者。Xiao WANG Hong-Mei PEN Chun-Yan HU Bin QUE Hui AI Chun-Mei WANG Li-Zhong SUN Shao-Ping NIE 2016Journal of Geriatric Cardiology2016,13,8:12
9Water relations and an expression analysis of plasma membrane intrinsic proteins in sensitive and tolerant rice during chilling and recovery显示文摘寒心的损害的症状是在射击的水赤字的开发,源于水运输和蒸发的不平衡。在这个工作,二个米饭变化(Oryza sativa L。var。Wasetoitsu 和 Somewake ) 幼苗是在 7 度 C 的 chilled,在 28 度 C 由恢复列在后面。基于生长显型和电解质漏测试, Somewake 被显示是一个寒心容忍的变化,和 Wasetoitsu 寒心敏感的。寒心的压力显著地减少了叶子,积聚的蒸发和渗透的根的相对的水内容(RWC ) 在两个变化的水力的电导率(Lp ) 。但是当回到了 28 度 C 时, Somewake 的水关系平衡更好恢复了。所有 11 血浆膜的 mRNA 表示侧面内在的蛋白质(果仁) , aquaporins 的亚群,被有 TaqMan 次要的林子文件夹(MGB ) 的 -PCR 探查的即时反向的抄写(RT ) 随后决定源于米饭 var。Nipponbare 在寒心的处理和恢复期间。大多数 PIP 基因在低温度是下面调整的,并且在温暖的温度恢复了。在 Somewake 和 Wasetoitsu 的一些果仁的相对表示在平行减少了在期间寒心。然而在恢复期间, OsPIP1 的相对表示; 1, OsPIP2; 1, OsPIP2; 7 在射击和 OsPIP1; 1, OsPIP2; 1 比 Wasetoitsu 在 Somewake 在根是显著地更高的。这在在寒心的条件以后重建水平衡支持果仁的角色。我们讨论 aquaporin 果仁亚科的成员在植物起的多样化的作用寒心的忍耐取决于 aquaporin isoforms,植物织物和寒心的持续时间的阶段。Xin Yu Yan Hui Peng Min Hua Zhang Yan Jun Shao Wei Ai Su Zhang Cheng Tang 2006Cell Research2006,16,6:11
10Changes in Climate Factors and Extreme Climate Events in South China during 1961-2010显示文摘Daily climate data at 110 stations during 1961-2010 were selected to examine the changing characteristics of climate factors and extreme climate events in South China. The annual mean surface air temperature has increased significantly by 0.16℃ per decade, most notably in the Pearl River Delta and in winter. The increase rate of the annual extreme minimum temperature (0.48℃ per decade) is over twice that of the annual extreme maximum temperature (0.20℃ per decade), and the increase of the mean temperature is mainly the result of the increase of the extreme minimum temperature. The increase rate of high-temperature days (1.1 d per decade) is close to the decrease rate of low-temperature days (-1.3 d per decade). The rainfall has not shown any significant trend, but the number of rainy days has decreased and the rain intensity has increased. The regional mean sunshine duration has a significant decreasing trend of -40.9 h per decade, and the number of hazy days has a significant increasing trend of 6.3 d per decade. The decrease of sunshine duration is mainly caused by the increase of total cloud, not by the increase of hazy days in South China. Both the regional mean pan evaporation and mean wind speed have significant decreasing trends of -65.9 mm per decade and -0.11 m s-1 per decade, respectively. The decrease of both sunshine duration and mean wind speed plays an important role in the decrease of pan evaporation. The number of landing tropical cyclones has an insignificant decreasing trend of -0.6 per decade, but their intensities show a weak increasing trend. The formation location of tropical cyclones landing in South China has converged towards 10-19°N, and the landing position has shown a northward trend. The date of the first landfall tropical cyclone postpones 1.8 d per decade, and the date of the last landfall advances 3.6 d per decade, resulting in reduction of the typhoon season by 5.4 d per decade.DU Yao-Dong AI Hui DUAN Hai-Lai HU Ya-Min WANG Xian-Wei HE Jian WU Hong-Yu WU Xiao-Xuan 2013Advances in Climate Change Research2013,4,1:9
11Frequency of infarct-related artery with myocardial bridging in patients with ST-elevation myocardial infarction and its impact upon percutaneous coronary intervention显示文摘Background Myocardial bridging (MB) as a congenital condition with a reported frequency of 5%-12% in diagnostic coronary angiography may be an important factor causing myocardial ischemia. However, its frequency in the infarct-related artery (IRA) of patients with ST-elevation myocardial infarction (STEMI) and the impact upon percutaneous coronary intervention (PCI) remain undetermined. In this study, we investigated MB frequency and its impact upon primary PCI in patients with STEMI. Methods The data of coronary angiography for 554 consecutive patients with STEMI who had undergone successful primary PCI were retrospectively analyzed to identify a frequency of MB in the IRA and its association with gender and age. According to the angiographic findings, the patients were divided into MB patients and non-MB patients. The endpoints of this study included immediate angiographic findings after primary PCI and 6-month major adverse cardiac events (MACE) (death, recurrent myocardial infarction, target lesion or vessel revascularization) between the MB patients and the non-MB patients. Results A frequency of MB in the IRA of 46 patients (8.3%) was identified in this series; it was more common in patients ≥65 years old (36/206) than in those <65 years old (10/348) (17.5% vs 2.9%, P<0.001). The trend of MB in the IRA was observed more frequently in women without significant difference than in men (10.2% vs 7.8%). TIMI grade III flow was achieved in 91.9% (509/554) of all patients following primary PCI, in 60.9% (28/46) of the MB patients and in 94.7% (481/508) of the non-MB patients respectively (P<0.001). The in-hospital mortality was 4.7% (26/554) in this series including 13.0% (6/46) of the MB patients and 3.9% (20/508) of the non-MB patients (P<0.001). A significant difference in 6 months MACE was seen between the MB patients (19%) and the non-MB patients (6.2%) (P<0.001). Conclusions MB in the IRA is relatively common in elderly patients with STEMI with a more evident trend in women, suggesting that arteriosclerosis and plaque rupture occurs more easily in the proximal artery to MB than in younger patients. Poor TIMI grade flow in patients with MB in the IRA after primary PCI may contribute to a high in-hospital mortality rate (13%) and 6-month MACE (19%) in the MB patients.YAN Hong-bing WANG Jian ZHU Xiao-ling GAO Hal LI Nan AI Hui 2006Chinese Medical Journal2006,,7:9
12Firebird sirolimus eluting stent versus bare mental stent in patients with ST-segment elevation myocardial infarction显示文摘在那里的背景是关于在有圣片断举起的病人的药 eluting stent 的价值的很少证据心肌的梗塞(STEMI ) 。我们有希望地设计了使随机化的控制审判比较鲜艳的小鸟 sirolimus eluting stent (鲜艳的小鸟 stent ) 和赤裸的金属 stent (BMS ).Methods 的安全和功效有在一个年时期期间注册的 STEMI 的病人被使随机化经历鲜艳的小鸟 stent 或 BMS 的培植,并且临床并且 angiographic 后续。现在的学习的主要端点晚是在里面损害在 6 个月的腔损失( LLL ),和第二等的端点在一个年时期期间在 6 months.Results 包括 stent 血栓和主要不利心脏的事件(向), 156 个病人被使随机化进鲜艳的小鸟 stent 组(有 57.8 年的平均年龄的 101 个病人)或 BMS 组(有 59.7 年的 55 个病人平均)。六月的 angiographic 后续在分别地分到鲜艳的小鸟 stent 和 BMS 的 66.3% 病人和 63.7% 是可得到的。当 3.6% , 30.9% 和 36.4% 在 BMS 组织时,在鲜艳的小鸟 stent 组在 6 月的后续,死亡,目标容器 revascularization (TVR ) 和向是 2.0% , 6.9% 和 9.9%(P0.05 ) 。稍尖的血栓分别地在两个组发生在 1 个病人。吝啬的 LLL 在鲜艳的小鸟 sirolimus eluting stent 的 BMS group.Conclusion 培植是在鲜艳的小鸟 stent 组对 0.72 公里的 0.18 公里因为 STEMI 可以极大地与 BMS 相比与尖锐 / 稍尖的 stent 血栓的低发生在 6 个月减少 TVR 和向。GAO Hai YAN Hong-bing ZHU Xiao-ling LI Nan AI Hui WANG Jian LI Shi-ying YANG Duo 2007Chinese Medical Journal2007,,10:9
13Effect of Ticagrelor on Coronary Blood Flow and Prognosis in Patients with Acute Myocardial Infarction Undergoing Primary Percutaneous Coronary Intervention in Real World显示文摘Yan-Yan Jin Rong Bai Hui Ai Shao-Pin Nie 2018Chinese Medical Journal2018,,21:9
14Correlation of An Ultrasonic Scoring System and Intraoperative Blood Loss in Placenta Accreta Spectrum Disorders: A Retrospective Cohort Study显示文摘Objective This study aims to investigate the correlation of an ultrasonic scoring system with intraoperative blood loss(IBL) in placenta accreta spectrum(PAS) disorders.Methods A retrospective cohort study was conducted between January 2015 and November 2019.Clinical data for patients with PAS have been obtained from medical records. Generalized additive models were used to explore the nonlinear relationships between ultrasonic scores and IBL. Logistic regressions were used to determine the differences in the risk of IBL ≥ 1,500 m L among groups with different ultrasonic scores.Results A total of 332 patients participated in the analysis. Generalized additive models showed a significant positive correlation between score and blood loss. The amount of IBL was increased due to the rise in the ultrasonic score. All cases were divided into three groups according to the scores(low score group: ≤ 6 points, n = 147;median score group: 7-9 points, n = 126;and high score group: ≥ 10 points, n = 59). Compared with the low score group, the high score group showed a higher risk of IBL≥ 1,500 m L [odds ratio, 15.09;95% confidence interval(3.85, 59.19);P ≤ 0.001] after a multivariable adjustment.Conclusions The risk of blood loss equal to or greater than 1,500 m L increases further when ultrasonic score greater than or equal to 10 points, the preparation for transfusion and referral mechanism should be considered.CHEN Lian SHI Hui Feng JIANG Hai SHI Xiao Ming WANG Yuan Yuan ZHANG Ai Qing CHONG Yi Wen ZHAO Yang Yu 2021Biomedical and Environmental Sciences2021,34,2:9
15Survey of coverage,strategy and cost of hepatitis B vaccination in rural and urban areas of China显示文摘INTRODUCTIONSomestudiesdemonstratedthatHBsAgandantiHBcpositiveratesoftheimmunizedpopulationsafterhepatitisB(HB)vaccination...ZENG Xian Jia 1, YANG Gong Huan 2, LIAO Su Su 1, CHEN Ai Ping 2, TAN Jian 2, HUANG Zheng Jing 2 and LI Hui 1 1999World Journal of Gastroenterology1999,5,4:8
16Association between Plasma Metal Levels and Diabetes Risk: a Case-control Study in China显示文摘Objective Many metals, some of which have been classified as environmental endocrine disruptors, are used extensively in everyday consumer products and are ubiquitous in our living environment. In the present study, we aimed to explore the associations between the prevalence risk of type 2 diabetes and plasma levels of 20 trace elements as well as those of heavy metals in a Han Chinese population. Methods We conducted a case-control study to investigate the associations between plasma concentrations of 20 metals and diabetes in Jiangsu province. A total of 122 newly diagnosed cases of type 2 diabetes and 429 matched controls were recruited from community physical examinations in Suzhou City of Jiangsu Province. Plasma metal levels were measured by inductively-coupled plasma mass spectrometry. Results After adjusting for confounders, plasma vanadium, chromium, manganese, copper, zinc, arsenic, selenium, strontium, palladium, cadmium, cesium, and barium were associated with diabetes risk(P < 0.05). The adjusted OR increased with increasing concentration of vanadium, manganese, copper, zinc, and cesium. Conclusion Many metals, including manganese, copper, zinc, arsenic, selenium, and cadmium in plasma, are associated with the morbidity of diabetes. Monitoring of environmental metal levels and further studies are urgently needed.LI Xiu Ting YU Peng Fei GAO Yan GUO Wen Hui WANG Jun LIU Xin GU Ai Hua JI Gui Xiang DONG Qiu WANG Bo Shen CAO Ying ZHU Bao Li XIAO Hang 2017Biomedical and Environmental Sciences2017,30,7:8
17Molecular evolution of the rice miR395 gene family显示文摘MicroRNAs (miRNAs) are 20-22 nucleotide non-coding RNAs that play important roles in plant and animal development. They are usually processed from larger precursors that can form stem-loop structures. Among 20 miRNA families that are conserved between Arabidopsis and rice, the rice miR395 gene family was unique because it was organized into compact clusters that could be transcribed as one single transcript. We show here that in fact this family had four clusters of total 24 genes. Three of these clusters were segmental duplications. They contained miR395 genes of both 120 bp and 66 bp long. However, only the latter was repeatedly duplicated. The fourth cluster contained miR395 genes of two different sizes that could be the consequences of intergenic recombination of genes from the first three clusters. On each cluster, both 1-duplication and 2-duplication histories were observed based on the sequence similarity between miR395 genes, some of which were nearly identical suggesting a recent origin. This was supported by a miR395 locus survey among several species of the genus Oryza, where two clusters were only found in species with an AA genome, the genome of the cultivated rice. A comparative study of the genomic organization of Medicago truncatula miR395 gene family showed significant expansion of intergenic spaces indicating that the originally clustered genes were drifting away from each other. The diverse genomic organizations of a conserved microRNA gene family in different plant genomes indicated that this important negative gene regulation system has undergone dramatic tune-ups in plant genomes.Sreelatha GUDDETI De Chun ZHANG Ai Li LI Chuck H. LESEBERG Hui KANG Xiao Guang LI Wen Xue ZHAI Mitrick A. JOHNS Long MAO 2005Cell Research2005,15,8:7
18H2 strain attenuated live hepatitis A vaccines:protective efficacy in a hepatitis A outbreak显示文摘AIM To investigate the protective efficacy ofH2 strain attenuated live hepatitis A vaccines(H2-strain vaccines)in hepatitis A(HA)outbreaks.METHODS With the permission of theirparents,5551 pre-school and grade 1-3 primaryschool children were inoculated with 1 dose(106.5TCID50)of H2-strain vaccines in anonrandomized,controlled trial conducted inFucheng County,Hebei Province in May 1997.Another 6485 children in the same grades andcompatible in gender and age were enrolled ascontrols.Epidemiological and serological surveywas conducted to evaluate the protectiveefficacy of the vaccines.ELISA was used todetect serum IgM anti-HAV.RESULTS HA outbreak started in early May1998,peaked in the middle of the same month,and lasted about 80 days.Overall 302 HA caseswere found,192(53.58%)were 5-9 years old.One vaccinee and 25 control cases were found tohave hepatitis A,which account for 0.28%(1/356)and 5.92%(25/422)of all vaccinees andcontrols in the 14 villages,respectively.The protective efficacy of vaccines was 95.27%(95% Cl:85.83%-104.72%).In subjects testedfor anti-HAV IgM from 13 villages,1(0.40%)overt and 11(4.06%)asymptomatic HAV caseswere found in 271 vaccinees,but 21(6.69%)ofovert and asymptomatic ones were found in 314controls.CONCLUSION H2 strain vaccines were excellent in preventing overt hepatitis A, but not so effective in preventing asymptomatic hepatitis A virus infection. A booster dose might be needed to get permanent reliable immunity.Yu Liang Zhao Zong Da Meng Zhi Yi Xu Jun Jie Guo Shao Ai Chai Cheng Gang Duo Xuan Yi Wang Jin Feng Yao Hong Bin Liu Shun Xiang Qi Hui Bin Zhu 2000World Journal of Gastroenterology2000,6,6:7
19Effect of diosmetin on airway remodeling in a murine model of chronic asthma显示文摘支气管的气喘,最普通的过敏疾病之一,被航线 hyperresponsiveness (AHR ) 描绘,发炎,并且改变。抗氧化剂黄酮 aglycone diosmetin 改善在胰腺炎的发炎,而是很少在气喘上对它的影响被知道。在这研究,长期的气喘上的 diosmetin 的效果在航线在与 ovalbumin (卵) 质问的 BALB/c 老鼠改变的调整上与一个重音被调查。diosmetin 显著地在气喘的老鼠的肺减轻了煽动性的细胞渗入,离脚玻璃杯或瓷杯细胞增生,和骨胶原免职并且显著地在这些动物减少了 AHR,这被发现。全部的房间的导致卵的增加和在 bronchoalveolar lavage 液体的嗜曙红血球计数被颠倒,并且在浆液的卵特定的免疫球蛋白 E 的水平被 diosmetin 管理稀释,暗示 diosmetin 的一项 anti-Th2 活动。而且, diosmetin 显著地压制了光滑的肌肉肌动朊 alpha 链的表示,显示航线上的 diosmetin 的有势力 anti-proliferative 效果光滑的肌肉房间(ASMC ) 。矩阵 metallopeptidase-9,转变生长 factor-1,和脉管的 endothelial 生长因素层次是也由 diosmetin 减轻了,建议航线改变的宽恕可能被归因于这些蛋白质的衰落。一起拿,我们的调查结果向 diosmetin 的新奇侧面提供了改变反的治疗学的好处,在在长期的气喘汇寄 ASMC 增长加亮 diosmetin 的一个新潜力。Ai Ge Yanan Liu Xiaoning Zeng Hui Kong Yuan Ma Jiaxiang Zhang Fangfang Bai Mao Huang 2015Acta Biochimica et Biophysica Sinica2015,47,8:7
20High-pressure granulite from Western Kunlun,northwestern China:Its metamorphic evolution,zircon SHRIMP U-Pb ages and tectonic implication显示文摘High-pressure mafic granulites occurring as lenticular bodies within garnet-amphibolites in Kangxiwar Fault have been first reported in this paper. The P-T conditions of two metamorphic stages were ob-tained using calibrated geothermal barometers and ThermoCalc Program. The peak metamorphic con-dition of these high-pressure granulites is about 760―820℃,1.0―1.2 GPa and the retrograde meta-morphic condition is about 620―720℃,0.7―0.8 GPa. The petrological studies show that they have a near-isobaric cooling P-T path which suggests that the Western Kunlun underwent initial crustal thickening,subsequent exhumation and cooling. The SHRIMP zircon U-Pb dating gives two groups of ages for high-pressure granulites. One is 177±6 Ma which is obtained from the rim of the zircon. We consider this age should be the metamorphic age. And the other is 456±30 Ma which is obtained from the core of the zircon and should be the protolith age. The formation of these high-pressure granulites in western Kunlun is closely correlated with the evolution of the Paleo-Tethys and has important im-plications for the research on Tethys and Paleo-Asian tectonic zone.QU JunFeng ZHANG LiFei AI YongLiang L Zeng WANG JianPing ZHOU Hui WANG ShiYan 2007Science China Earth Sciences2007,50,7:7
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