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1Structures of EV71 RNA-dependent RNA polymerase in complex with substrate and analogue provide a drug target against the hand-foot-and-mouth disease pandemic in China显示文摘Enterovirus 71(EV71),one of the major causative agents for hand-foot-and-mouth disease(HFMD),has caused more than 100 deaths among Chinese children since March 2008.The EV71 genome encodes an RNAdependent RNA polymerase(RdRp),denoted 3D^(pol),which is central for viral genome replication and is a key target for the discovery of specific antiviral therapeutics.Here we report the crystal structures of EV71 RdRp(3D^(pol))and in complex with substrate guanosine-5'-triphosphate and analog 5-bromouridine-5'-triphosphate best to 2.4Åresolution.The structure of EV71 RdRp(3D^(pol))has a wider open thumb domain compared with the most closely related crystal structure of poliovirus RdRp.And the EV71 RdRp(3D^(pol))complex with GTP or Br-UTP bounded shows two distinct movements of the polymerase by substrate or analogue binding.The model of the complex with the template:primer derived by superimposition with foot-and-mouth disease virus(FMDV)3D/RNA complex reveals the likely recognition and binding of template:primer RNA by the polymerase.These results together provide a molecular basis for EV71 RNA replication and reveal a potential target for anti-EV71 drug discovery.Yang Wu Zhiyong Lou Yi Miao Yue Yu Hui Dong Wei Peng Mark Bartlam Xuemei Li Zihe Rao 2010Protein & Cell2010,1,5:30
2Suppression of Jasmonic Acid-Mediated Defense by Viral-Inducible MicroRNA319 Facilitates Virus Infection in Rice显示文摘MicroRNAs (miRNAs ) 是植物开发和主人病毒相互作用的枢轴的调节的人。然而,角色和涉及病毒的感染和主人危险性的特定的 miRNAs 的行动模式仍然保持大部分不清楚。在这研究,我们给那瑞斯看引起 miR319 的增加的累积,但是减少的破旧绝技病毒(RRSV ) 感染调整 miR319 的 TCP (TEOSINTE BRANCHED/CYCLOIDEA/PCF ) 的表示基因,特别 TCP21,在米饭植物。转基因的米饭植物 overexpressing miR319 或 downregulating TCP21 展出了像疾病的显型并且与野类型的植物比较显示出显著地更高的危险性到 RRSV。相反,仅仅温和的疾病症状在感染 RRSV 的线 overexpressing TCP21 并且特别在转基因的植物 overexpressing 被观察 miR319 抵抗的 TCP21。miR319 的 RRSV 感染和 overexpression 在米饭与 JA 生合成和信号相关的基因的 downregulated 表示一起引起了减少的内长的 jasmonic 酸(JA ) 层次。然而,有甲基 jasmonate 的米饭植物的治疗减轻了 RRSV 引起并且减少了病毒累积的疾病症状。一起拿,我们的结果建议由在米饭的 RRSV 感染的 miR319 的正式就职压制调停 JA 的防卫便于病毒感染和症状开发。Chao Zhang Zuomei Ding Kangcheng Wu Liang Yang Yang Li Zhen Yang Shan Shi Xiaojuan Liu Shanshan Zhao Zhirui Yang Yu Wang Luping Zheng Juan Wei Zhenguo Du Aihong Zhang Hongqin Miao Yi Li Zujian Wu Jianguo Wu 2016Molecular Plant2016,9,9:27
3Characteristics of one-year observation of VOCs,NOx, and O_3 at an urban site in Wuhan, China显示文摘A continuous online observation of ozone and its precursors(NOx, VOCs) was carried out in central urban Wuhan from September 2016 to August 2017. The concentration levels of ozone,NOx, VOCs and their variations in urban Wuhan were analyzed, as well as effects of VOCs on ozone photochemical generation and the main controlling factors for ozone production. During the observation period, the average concentrations of ozone and NOx in Wuhan was 22.63 and30.14 ppbv, respectively, and the average concentration of VOCs was 32.61 ppbv(42.3% alkanes,13.0% alkenes, 10.0% aromatics, 7.3% acetylene, 9.9% OVOCs, and 10.5% halohydrocarbons).Ozone concentration was higher in spring and summer as compared with autumn and winter,wheras VOCs and NOx concentratios were lower in spring and summer but higher in autumn and winter. Aromatics and alkenes, two of VOCs species, showed the highest contributions to ozone formation potential in Wuhan(35.7% alkenes, 35.4 aromatics, 17.5% alkanes, 8.6% OVOCs,1.6% halogenated hydrocarbons, and 1.4% acetylene). Among all VOCs species, those with the highest contribution were ethylene, m-xylene, toluene, propylene and o-xylene. The contribution of these five compounds to the total ozone formation potential concentration was 43.90%.Ozone-controlling factors in Wuhan changed within one day; during the early morning hours(6:00–9:00), VOCs/NOx was low, and ozone generation followed a VOCs-limited regime.However, during the peak time of ozone concentration(12:00–16:00), the ratio of VOCs/NOx was relatively high, suggesting that ozone generation followed a NOx-limited regime.Yichang Yang Xingang Liu Jun Zheng Qinwen Tan Miao Feng Yu Qu Junling An Nianliang Cheng 2019Journal of Environmental Sciences2019,31,5:26
4MADS-Box Transcription Factor AGL21 Regulates Lateral Root Development and Responds to Multiple External and Physiological Signals显示文摘植物根系统形态学被各种各样的环境暗示戏剧性地影响。到环境限制的根系统建筑学的改编,主要取决于侧面的根的形成和生长,是一个重要农学的特点。侧面的根开发被与内在的发信号的小径仔细协调的外部信号调整。疯盒子的抄写因素是到 flowering 和花开发的转变的已知的关键管理者。然而,他们在根开发的功能仍然糟糕被理解。这里,我们报导那 AGL21, AGL17-clade 疯盒子的基因,在侧面的根开发起一个关键作用。AGL21 高度在根被表示,特别地在根中央柱体和侧面的根 primordia。当 agl21 异种显示出损害的侧面的根开发时, AGL21 overexpression 植物生产了更多和更长侧面的根,特别在氮缺乏的条件下面。AGL21 被许多植物荷尔蒙和环境压力导致,建议在响应各种各样的信号的根系统粘性的这基因的一个函数。而且, AGL21 断然被发现由提高本地植物生长素生合成,因此刺激的侧面的根开始和生长在侧面的根 primordia 和侧面的根调整植物生长素累积。我们建议 AGL21 可以涉及各种各样的环境、生理的调停信号的侧面的根开发和生长。Lin-Hui Yu Zi-Qing Miao Guo-Feng Qi Jie Wu Xiao-Teng Cai Jie-Li Mao Cheng-Bin Xiang 2014Molecular Plant2014,7,11:21
5Hermetia illucens larvae as a potential dietary protein source altered the microbiota and modulated mucosal immune status in the colon of finishing pigs显示文摘Background: Insects, such as Hermetia illucens larvae, are rich in chitin and proteins, and represent a suitable feed ingredient replacement for animals. However, little is known about the effect of administering H. illucens larvae on intestinal microbiota, bacterial metabolite profiles, and mucosal immune status in animals. This study aimed to investigate the effects of administering H. illucens larvae on colonic microbiota and bacterial metabolites production in finishing pigs. Seventy-two crossbred(Duroc × Landrace × Large White) female pigs(initial body weight, 76.0 ± 0.52 kg) were randomly allocated to three different dietary treatments: a control diet(Control group) and two diets corresponding to 4%(H1 group) and 8%(H2 group) H. illucens larvae inclusion levels, respectively. Each treatment consisted of eight pens(replicates), with three pigs per pen. After 46 days of feeding, eight pigs per treatment(n =8) were slaughtered, and the colonic digesta and mucosa were collected for microbial composition and microbial fermentation products, and genes expression analyses.Results: The results showed that the H1 diet significantly increased the abundance of Lactobacillus,Pseudobutyrivibrio, Roseburia, and Faecalibacterium compared with those in the control group(P < 0.05), with a decrease in the abundance of Streptococcus. The numbers of Lactobacillus, Roseburia, and Clostridium cluster XIVa were significantly greater in the H1 group than in the control group(P < 0.05). Meanwhile, H2 diet increased the number of Clostridium cluster XIVa compared with the control group(P < 0.05). For colonic metabolites, total short chain fatty acids, butyrate, and isobutyrate concentrations were significantly higher in the H1 group than those in the control group(P < 0.05);the H1 treatment caused a striking decrease in protein fermentation compared with the control group, as the concentrations of total amines, cadaverine, tryptamine, phenol, p-cresol, and skatole were significantly lower(P < 0.05). Additionally, H2 diet also increased butyrate concentration compared with control group(P < 0.05), while decreased the concentrations of phenol, p-cresol, and skatole(P < 0.05). Pigs in the H1 group down-regulated the expression of TLR-4 and pro-inflammatory cytokines(IFN-γ) compared with pigs in the control group(P < 0.05), and up-regulated anti-inflammatory cytokine(IL-10) and intestinal barrier genes(ZO-1, occludin, and mucin-1). H2 diet up-regulated the expression of ZO-1 compared with control group(P < 0.05). Furthermore, the changes in the colonic mucosal gene expression were associated with changes in the bacterial composition and their metabolites.Conclusions: Collectively, dietary inclusion of Hermetia illucens larvae may enhance mucosal immune homeostasis of pigs via altering bacterial composition and their metabolites. These findings provide a new perspective on insect meal as a sustainable protein source rich in nutrient ingredients for swine.Miao Yu Zhenming Li Weidong Chen Ting Rong Gang Wang Xianyong Ma 2019Journal of Animal Science and Biotechnology2019,10,4:21
6The Role of Fibrocyte in the Pathogenesis of Silicosis显示文摘Exposure to free silica induces silicosis and myofibroblasts are regarded as primary effector cells.Fibrocytes can differentiate into myofibroblast.Therefore,the present study was designed to investigate whetherLI Juan YAO Wu HOU Jian Yong ZHANG Lin BAO Lei CHEN Hui Ting WANG Di YUE Zhong Zheng LI Yi Ping ZHANG Miao YU Xing Hao ZHANG Jian Hui QU Ya Qian HAO Chang Fu 2018Biomedical and Environmental Sciences2018,31,4:20
7Analysis of the Harmfulness of Water-Inrush from Coal Seam Floor Based on Seepage Instability Theory显示文摘A theory of seepage instability was used to estimate the harmfulness of water-inrush from a coal seam floor in a particular coal mine of the Mining Group,Xuzhou. Based on the stratum column chart in this coal mine,the distribu-tion of stress in mining floors when the long-wall mining was respectively pushed along to 100 m and to 150 m was simulated by using the numerical software (RFPA2D). The permeability parameters of the coal seam floor are described given the relationship between permeability parameters. Strain and the water-inrush-indices were calculated. The wa-ter-inrush-index was 67.2% when the working face was pushed to 100 m,showing that water-inrush is possible and it was 1630% when the working face was pushed to 150 m,showing that water-inrush is quite probable. The results show that as long-wall mining is pushed along,the failure zone is enlarged,the strain increased,and fissures developed cor-respondingly,resulting in the formation of water-inrush channels. Accompanied by the failure of the strata,the perme-ability increased exponentially. In contrast,the non-Darcy flow β factor and the acceleration coefficient decreased ex-ponentially,while the increase in the water-inrush-index was nearly exponential and the harmfulness of water-inrush in the coal mine increased accordingly.KONG Hai-ling MIAO Xie-xing WANG Lu-zhen ZHANG Yu CHEN Zhan-qing 2007Journal of China University of Mining and Technology2007,17,4:19
8Effects of Acupuncture on Alzheimer’s Disease: Evidence from Neuroimaging Studies显示文摘As the worldwide population ages, the prevalence of Alzheimer's disease (AD) increases. However, the results of promising medications have been unsatisfactory. Chinese acupuncture has a long history of treating dementia, but lack of evidence from well-designed randomized controlled trials that validate its efficacy and safety, as well as its lack of clear underlying mechanisms, contribute to its limited application in clinical practice. In recent years, brain imaging technologies, such as functional magnetic resonance imaging and positron emission tomography, have been used to assess brain responses to acupuncture in a dynamic, visual, and objective way. These techniques are frequently used to explore neurological mechanisms of responses to acupuncture in AD and provide neuroimaging evidence as well as starting points to elucidate the possible mechanisms. This review summarizes the existing brain imaging evidence that explains the effects of acupuncture for AD and analyzes brain responses to acupuncture at cognitive-related acupoints [Baihui (GV 20), Shenmen (HT 7), Zusanli (ST 36), Neiguan (PC 6), and Taixi (KI 3)] from perspectives of acupoint specificity and acupoint combinations. Key issues and directions to consider in future studies are also put forward. This review should deepen our understanding of how brain imaging studies can be used to explore the underlying mechanisms of acupuncture in AD.YU Chao-chao MA Chao-yang WANG Hua KONG Li-hong ZHAO Yan SHEN Feng WU Miao 2019Chinese Journal of Integrative Medicine2019,25,8:18
9The complete nucleotide sequence of the mitochondrial genome of the cabbage butterfly, Artogeia melete (Lepidoptera: Pieridae)显示文摘Artogeia melete 的完全的 mitochondrial 染色体(mitogenome ) 作为由 15,140 bp 构成被决定,包括 13 编码蛋白质的基因(PCG ) , 2 rRNA 基因, 22 tRNA 基因,和基因控制区域。A 的基因顺序。melete mitogenome 典型地代表鳞翅目并且不同于昆虫在 trnM 的地点的祖先的类型。A。melete mitogenome 有分隔符序列在 10 个区域上散布了的 intergenic 的 119 bp 的一个总数,在在 1 和 48 bp 之间的尺寸变化。A 的核苷酸作文。melete mitogenome 也向核苷酸(79.77%) 它比 Ochrogaster lunifer (77.84%) 的高,但是比九另外的 lepidopterans 降低定序的 + T 被偏导。PCG 让典型 mitochondrial 开始 codons,除了 cox1,它包含不平常的 CGA。A 的 cox1, cox2, nad2,和 nad5 基因。melete mitogenome 有不完全的站 codons (T) 。A。T 富有的区域包含的 melete A + 类似于那些的一些保存结构在另外的鳞翅类的 mitogenomes 发现了包括联合主题 ATAGA 的结构, 19-bp poly (T) 段, microsatellite (在) n 元素,和 9-bp poly 在上游的(A) trnM。A。melete mitogenome 包含一个复制 36-bp 重复元素,它完美地由 10-bp 由 26-bp 核心顺序 flanked 组成转换重复。Guiyun Hong Shaotong Jiang Miao Yu Ying Yang Feng Li Fangsen Xue Zhaojun Wei 2009Acta Biochimica et Biophysica Sinica2009,41,6:18
10Antigen-presenting effects of effector memory Vγ9Vδ2 T cells in rheumatoid arthritis显示文摘Chaoying Hu Liu Qian Yi Miao Qiuyu Huang Ping Miao Ping Wang Qiwen Yu Hong Nie Jiying Zhang Dongyi He Rong Xu Xuehua Chen Bingya Liu Dongqing Zhang 2012Cellular & Molecular Immunology2012,9,3:18
11A Possible Dynamic Mechanism for Rapid Production of the Extreme Hourly Rainfall in Zhengzhou City on 20 July 2021显示文摘In this study,the unprecedented extreme rainfall event during 19-20 July 2021,which caused devastating flooding in Zhengzhou City and its nearby areas,is examined based on observational data analysis and WRF model 40-h simulations on 1-km horizontal resolution.The results show that the model successfully reproduces(i)major synopticscale weather systems(i.e.,the western Pacific subtropical high,the Tibetan high,two typhoons,and the Huang-Huai cyclone),(ii)convective initiation along the east to north edge of the Songshan Mountain,where orographic lifting is obvious,and(iii)subsequent formation of the convective storm producing the extreme rainfall in Zhengzhou.In particular,the model generates the maximum rainfall rate of 233 mm h^(-1)and 40-h accumulated rainfall of 704 mm,corresponding well to the observed extreme values of 201.9 mm h^(-1)and 818 mm,at nearly observed timing and location.Importantly,the model reproduces an intense quasi-stationary,well-organized meso-γ-scale convective system,surrounded by an arc-shaped convergence zone,allowing the development of convective updrafts in a three-quarter circle around the convective system,in a way similar to“multidirectional pumping,”attracting all associated precipitation overlaid and concentrated into the same trailing region to generate the extreme hourly rainfall over Zhengzhou.Our study emphasizes the significant contribution of the unique dynamic structure of the well-organized meso-γ-scale convective system to the record-high hourly rainfall.A possible dynamic mechanism for short-time extreme rainfall production is proposed.That is,the arc-shaped convergence zone of the mesoscale convective system,acting like multidirectional lifting pumps,transports precipitation from different directions into the same region,and thus produces the extreme rainfall.The results gained herein may shed new light on better understanding and forecasting of short-time extreme rainfall.Jinfang YIN Haodong GU Xudong LIANG Miao YU Jisong SUN Yanxin XIE Feng LI Chong WU 2022Journal of Meteorological Research2022,36,1:17
12Prevalence, awareness, treatment, and control of hypertension in the non-dialysis chronic kidney disease patients显示文摘ZHENG Ying CAI Guang-yan CHEN Xiang-mei FU Ping CHEN Jiang-hua DING Xiao-qiang YU Xue-qing LIN Hong-li LIU Jian XIE Ru-juan WANG Li-ning NI Zhao-hui LIU Fu-you YIN Ai-ping XING Chang-ying WANG Li SHI Wei LIU Jian-she HE Ya-ni DING Guo-hua LI Wen-ge WU Guang-li MIAO Li-ning CHEN Nan SU Zhen MEI Chang-lin ZHAO Jiu-yang GU Yong BAI Yun-kai LUO Hui-min LIN Shan CHEN Meng-hua GONG Li YANG Yi-bin YANG Xiao-ping LI Ying WAN Jian-xin WANG Nian-song LI Hai-ying XI Chun-sheng HAO Li XU Yan FANG Jing-ai LIU Bi-cheng LI Rong-shan WANG Rong ZHANG Jing-hong WANG Jian-qin LOU Tan-qi SHAO Feng-min MEI Feng LIU Zhi-hong YUAN Wei-jie SUN Shi-ren ZHANG Ling ZHOU Chun-hua CHEN Qin-kai JIA Shun-lian GONG Zhi-feng GUAN Guang-ju XIA Tian ZHONG Liang-bao 2013Chinese Medical Journal2013,,12:16
13Intraoperative ultrasonography in "cave-in" 360° circumferential decompression for thoracic spinal stenosis显示文摘WANG Yong-qiang LIU Xiao-guang JIANG Liang JIANG Ling WEI Feng YU Miao LIU Zhong-jun 2011Chinese Medical Journal2011,,23:15
14Salvianolate Reduces Murine Myocardial Ischemia and Reperfusion Injury via ERK1/2 Signaling Pathways in vivo显示文摘Objective:To analyze the effects of salvianolate on myocardial infarction in a murine in vivo model of ischemia and reperfusion(l/R) injury.Methods:Myocardial l/R injury model was constructed in mice by 30 min of coronary occlusion followed by 24 h of reperfusion and pretreated with salvianolate 30 min before l/R(SAL group).The SAL group was compared with SHAM(no l/R and no salvianolate),l/R(no salvianolate),and ischemia preconditioning(IPC) groups.Furthermore,an ERK1/2 inhibitor PD98059(1 mg/kg),and a phosphatidylinositol-3-kinase(PI3-K) inhibitor,LY294002(7.5 mg/kg),were administered intraperitoneal injection(i.p) for 30 min prior to salvianolate,followed by l/R surgery in LY and PD groups.By using a double staining method,the ratio of the infarct size(IS) to left ventricle(LV) and of risk region(RR) to LV were compared among the groups.Correlations between IS and RR were analyzed.Western-blot was used to detect the extracellular signal-regulated kinase 1/2(ERK1/2) and protein kinase B(AKT) phosphorylation changes.Results:There were no significant differences between RR to LV ratio among the SHAM,l/R,IPC and SAL groups(P>0.05).The SAL and IPC groups had IS of 26.1%± 1.4%and 22.3%±2.9%of RR,respectively,both of which were significantly smaller than the l/R group(38.5%±2.9%of RR,P<0.05,P<0.01,respectively).Moreover,the phosphorylation of ERK1/2 was increased in SAL group(P<0.05),while AKT had no significant change.LY294002 further reduced IS,whereas the protective role of salvianolate could be attenuated by PD98059,which increased the IS.Additionally,the IS was not linearly related to the RR(r=0.23,0.45,0.62,0.17,and 0.52 in the SHAM,l/R,SAL,LY and PD groups,respectively).Conclusion:Salvianolate could reduce myocardial l/R injury in mice in vivo,which involves an ERK1/2 pathway,but not a PI3-K signaling pathway.QI Jian-yong YU Juan HUANG Dong-hui GUO Li-heng WANG Lei HUANG Xin HUANG Hai-ding ZHOU Miao ZHANG Min-zhou Jiashin Wu 2017Chinese Journal of Integrative Medicine2017,23,1:14
15End-stage liver disease score and future liver remnant volume predict post-hepatectomy liver failure in hepatocellular carcinoma显示文摘BACKGROUND Hepatocellular carcinoma(HCC)is the world’s sixth most common malignant tumor and the third cause of cancer death.Although great progress has been made in hepatectomy,it is still associated with a certain degree of risk of posthepatectomy liver failure(PHLF),which extends the length of hospital stay and remains the leading cause of postoperative death.Studies have shown that assessment of hepatic functional reserve before hepatectomy is beneficial for reducing the incidence of PHLF.AIM To assess the value of model for end-stage liver disease(MELD)score combined with standardized future liver remnant(sFLR)volume in predicting PHLF in patients undergoing hepatectomy for HCC.METHODS This study was attended by 238 patients with HCC who underwent hepatectomy between January 2015 and January 2018.Discrimination of sFLR volume,MELD score,and sFLR/MELD ratio to predict PHLF was evaluated according to the area under the receiver operating characteristic curve.RESULTS The patients were divided into two groups according to whether PHLF occurred after hepatectomy.The incidence of PHLF was 8.4%in our research.The incidence of PHLF increased with the decrease in sFLR volume and the increase in MELD score.Both sFLR volume and MELD score were considered independent predictive factors for PHLF.Moreover,the cut-off value of the sFLR/MELD score to predict PHLF was 0.078(P<0.001).This suggests that an sFLR/MELD≥0.078 indicates a higher incidence of PHLF than an sFLR/MELD<0.078.CONCLUSION MELD combined with sFLR is a reliable and effective PHLF predictor,which is superior to MELD score or sFLR volume alone.Fan-Hua Kong Xiong-Ying Miao Heng Zou Li Xiong Yu Wen Bo Chen Xi Liu Jiang-Jiao Zhou 2019World Journal of Clinical Cases2019,7,22:14
16Projected drought conditions in Northwest China with CMIP6 models under combined SSPs and RCPs for 2015—2099显示文摘Northwest China is one of the most arid regions in the world and has experienced intriguing climate warming and humidification.Nonetheless,future climate conditions in Northwest China still remain uncertain.In this study,we applied an ensemble of the 12 latest model simulations of the Coupled Model Intercomparison Project Phase 6(CMIP6)to assess future drought conditions until 2099 in Northwest China,as inferred from the Palmer Drought Severity Index(PDSI).Future drought conditions were projected under three climate change scenarios through the combination of shared socioeconomic pathways(SSPs)and representative concentration pathways(RCPs),namely,SSP126(SSP1+RCP2.6,a green development pathway),SSP245(SSP2+RCP4.5,an intermediate development pathway),and SSP585(SSP5+RCP8.5,a high development pathway).For 2015-2099,drought severity showed no trend under SSP126,in contrast,for the SSP245 and SSP585 scenarios,a rapid increase during 2015-2099 was observed,especially under SSP585.We also found that the drought frequency in Northwest China under SSP585 was generally lower than that under SSP126 and SSP245,although the drought duration under SSP585 tended to be longer.These findings suggest the green development pathway in drought mitigation and adaptation strategies in Northwest China,an arid and agricultural region along the Silk Road.LI Su-Yuan MIAO Li-Juan JIANG Zhi-Hong WANG Guo-Jie GNYAWALI Kaushal Raj ZHANG Jing ZHANG Hui FANG Ke HE Yu LI Chun 2020Advances in Climate Change Research2020,11,3:14
17Radial shock wave therapy in the treatment of chronic constriction injury model in rats: a preliminary study显示文摘Fu Miao Cheng Hao Li Duoyi Yu Xiaotong Ji Nan Luo Fang 2014Chinese Medical Journal2014,,5:13
18Different dietary starch sources alter the carcass traits, meat quality, and the profile of muscle amino acid and fatty acid in finishing pigs显示文摘Background: With increasing health awareness among consumers, the demand for healthier, tastier, higher quality and nutritional value pork is increasing. It has been shown that different dietary starch sources can alter the carcass traits and meat quality. However, research on the effects of different starch sources with clear different amylose/amylopectin ratio on the amino acid and fatty acid composition in Longissimus thoracis(L. thoracis) muscle of pigs is limited. This study aimed to investigate the effects of different dietary starch sources on carcass traits, meat quality, muscle amino acid and fatty acid composition, and the mRNA expression levels of genes involved in lipid metabolism and muscle fiber characteristics in finishing pigs. A total of 72 Duroc × Landrace × Large White barrows were randomly allocated to 3 different dietary treatment groups with 8 replicate pens/group and 3 pigs per pen.Tapioca starch(TS), corn starch(CS), and pea starch(PS), with amylose/amylopectin ratio of 0.11, 0.25, and 0.44,respectively, were used as their dietary starch sources for 40 days.Results: Results showed that the PS diet significantly increased(P < 0.05) the final body weight, average daily gain,loin-eye area, and fat-free lean index compared with the TS diet, but significantly decreased(P < 0.05) the feed to gain ratio and backfat thickness. Compared with the TS diet, PS diet also increased(P < 0.05) the pH45 min, marbling scores, the content of intramuscular fat and inosine monophosphate in the L. thoracis, and decreased(P < 0.05) the drip loss and shear force. In addition, compared with the TS diet, PS diet increased(P < 0.05) the proportions of flavor amino acids, DHA, EPA, and n-3 polyunsaturated fatty acid(PUFA) in the L. thoracis compared with TS diet,but decreased(P < 0.05) the ratio of n-6/n-3 PUFA. Furthermore, compared with the TS diet, PS diet also upregulated(P < 0.05) the lipogenic genes(FAS, LPL, SCD, ACCα) and myosin heavy-chain(MyHC)-IIa mRNA expression levels compared with the TS diet, but downregulated(P < 0.05) the CPT1 B and MyHC-IIb mRNA levels.Conclusions: In conclusion, these results provided compelling evidence that the different dietary starch source altered the carcass traits, meat flavor and quality in finishing pigs, and consumption of a diet with higher amylose/amylopectin ratio results in the production of a healthy, higher quality, and nutritional value pork.Miao Yu Zhenming Li Ting Rong Gang Wang Zhichang Liu Weidong Chen Jiazhou Li Jianhao Li Xianyong Ma 2021Journal of Animal Science and Biotechnology2021,12,1:13
19Endoscopic transpancreatic septotomy as a precutting technique for difficult bile duct cannulation显示文摘AIM: To evaluate the technique of transpancreatic septotomy(TS) for cannulating inaccessible common bile ducts in endoscopic retrograde cholangiopancreatography(ERCP).METHODS: Between May 2012 and April 2013, 1074 patients were referred to our department for ERCP. We excluded 15 patients with previous Billroth Ⅱ gastrectomy, Roux-en-Y anastomosis, duodenal stenosis, or duodenal papilla tumor. Among 1059 patients who underwent ERCP, there were 163 patients with difficult bile duct cannulation. Pancreatic guidewire or pancreatic duct plastic stent assistance allowed for successful ERCP completion in 94 patients. We retrospectively analyzed clinical data from 69 failed patients(36 transpancreatic septotomies and 33 needle-knife sphincterotomies). RESULTS: Of the 69 patients who underwent precut papillotomy, common bile duct cannulation was successfully achieved in 67. The success rates in the TS and needle knife sphincterotomy(NKS) groups were 97.2%(35/36) and 96.9%(32/33), respectively, which were not significantly different(P > 0.05). Complications occurred in 11 cases, including acute pancreatitis(n = 6), bleeding(n = 2), and cholangitis(n = 3). The total frequency of complications in the TS group was lower than that in the NKS group(8.3% vs 24.2%, P < 0.05).CONCLUSION: Pancreatic guidewire or pancreatic duct plastic stent assistance improves the success rate of selective bile duct cannulation in ERCP. TS and NKS markedly improve the success rate of selective bile duct cannulation in ERCP. TS precut is safer as compared with NKS.Lin Miao Quan-Peng Li Ming-Hui Zhu Xian-Xiu Ge Hong Yu Fei Wang Guo-Zhong Ji 2015World Journal of Gastroenterology2015,21,13:13
20Plasma neutrophil-gelatinase-associated lipocalin and cystatin C could early diagnose contrast-induced acute kidney injury in patients with renal insufficiency undergoing an elective percutaneous coronary intervention显示文摘LIU Xiao-li WANG Zhi-jian YANG Qing YU Miao SHEN Hua NIE Bin HAN Hong-ya GAO Fei ZHOU Yu-jie 2012Chinese Medical Journal2012,,6:12
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