检索结果-南通市图书馆

Effects of dietary amylose to amylopectin ratio on growth performance,carcass quality characteristics and meat fatty acids in Chinese Qinchuan cattle

引用

Journal of Integrative Agriculture 2021年第12期20卷 3256-3269页

作者： PIAO Min-yu HU Feng-ming KONG Fan-lin LIU yun-long WANG Shuo CUI Kai SUN Tao DIAO Qi-yu tu Yan Institute of Feed Research Chinese Academy of Agricultural SciencesBeijing 100081P.R.China Beijing Key Laboratory for Dairy Cow Nutrition Beijing Municipal Commission of Science and TechnologyBeijing 100744P.R.China Sino-US Joint Laboratory on Nutrition and Metabolism of Ruminants Beijing 100081P.R.China ABNA Management(Shanghai)Co. Ltd.Shanghai 200051P.R.China

This study evaluated the effects of the dietary starch amylose/amylopectin ratio on growth performance,rumen fermentation and blood parameters,carcass characteristics and marbling score,and meat fatty acid profiles and transcriptional changes in the genes involved in the gluconeogenesis pathway in Chinese Qinchuan ***-five cattle were randomly divided into three *** bulls were fed a control diet(middle amylose/amylopectin ratio=0.47)or diets with either waxy corn starch(WS)inclusion(low amylose/amylopectin ratio=0.23)or pea starch(PS)inclusion(high amylose/amylopectin ratio=0.60)for 90 *** bulls were individually allowed to receive the diets at the daily amount of at least 2.1%of their individual BW twice *** bulls were weighed at 45-day intervals,and blood and rumen fluid samples were also collected at 45-day *** bulls were slaughtered and longissimus thoracis(LT)samples were collected for meat quality *** with PS,the average daily gain(ADG)and feed efficiency in control and WS were increased(P0.05)among the three *** with PS,the serum insulin concentration in WS was increased(P<0.05)at d 45,but not at d *** with control and WS,the serum SOD and T-AOC concentrations in PS were increased(P<0.05)at d 45,but not at d *** with control,the rumen microbial crude protein contents in WS and PS were increased(P<0.05)at d 0,while those of control and WS were higher(P<0.05)than that of PS at d 45,but not at d *** with PS,the backfat thickness in control and WS were increased(P<0.05),however,the marbling score and expression of genes related to the gluconeogenesis pathway in l

关键词： amylose/amylopectin ratio Chinese Qinchuan cattle utilization efficiency of starch gluconeogenesis intramuscular fat

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Increased pretreatment levels of serum LDH and ALP as poor prognostic factors for nasopharyngeal carcinoma

引用

Chinese Journal of Cancer 2012年第4期31卷 197-206页

作者： Guo Li Jin Gao Ya-Lan Tao Bing-Qing Xu Zi-Wei tu Zhi-Gang Liu Mu-Sheng Zeng yun-Fei Xia State Key Laboratory of Oncology in South China Guangzhou Guangdong 510060 P. R. China Department of Radiation Oncology Sun Yat-sen University Cancer Center Guangzhou Guangdong 510060 P. R. China

Serum enzymes that play potential roles in tumor growth have recently been reported to have prognostic relevance in a diverse array of ***,prognosis-related serum enzymes are rarely reported for nasopharyngeal carcinoma(NPC).To clarify whether the level of serum enzymes is linked to the prognosis of NPC,we reviewed the pretreatment data of lactate dehydrogenase(LDH),alkaline phosphatase (ALP),and glutamyl transferase (GGT) in 533 newly diagnosed NPC patients who underwent radical radiotherapy between May 2002 and October 2003 at Sun Yat-sen University Cancer *** were grouped according to the upper limit of normal values of LDH,ALP,and *** Kaplan-Meier method and log-rank test were used for selecting prognostic factors from clinical characteristics and serum enzymes,and the chi-square test was applied to analyze the relationships of clinical characteristics and serum ***,a Cox proportional hazards model was used to identify the independent prognostic *** found that increased levels of LDH had poor effects on both overall survival and distant metastasis-free survival(P=0.009 and 0.035,respectively),and increased pretreatment level of serum ALP had poor effects on both overall survival and local recurrence-free survival(P=0.037 and 0.039,respectively).In multivariate analysis,increased LDH level was identified as an independent prognostic factor for overall ***,we conclude that increased pretreatment serum LDH and ALP levels are poor prognostic factors for NPC.

关键词：血清酶 LDH 鼻咽癌 ALP 预后治疗乳酸脱氢酶碱性磷酸酶

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

EPAS1 prevents telomeric damage-induced senescence by enhancing transcription of TRF1,TRF2,and RAD50

引用

Zoological Research 2023年第3期44卷 636-649页

作者： Kai-Qin Li Gao-Jing Liu Xiu-yun Liu Qiong-Fang Chen Xiao-Yan Huang Qiu tu Jiao Zhang Qing Chang yun-Hua Xie Rong Hua Dong-Ming Xu Zhen Liu Bo Zhao Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences&yunnan Province KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common DiseasesKunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650201China State Key Laboratory of Genetic Resources and Evolution Kunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650201China University of Chinese Academy of Sciences Beijing 100049China Primate Facility National Research Facility for Phenotypic&Genetic Analysis of Model Animalsand National Resource Center for Non-Human PrimatesKunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650201China

Telomeres are nucleoprotein structures located at the end of each chromosome,which function in terminal protection and genomic *** damage is closely related to replicative senescence in vitro and physical aging in *** relatively long-lived mammals based on body size,bats display unique telomeric patterns,including the upregulation of genes involved in alternative lengthening of telomeres(ALT),DNA repair,and DNA *** present,however,the relevant molecular mechanisms remain *** this study,we performed cross-species comparison and identified EPAS1,a well-defined oxygen response gene,as a key telomeric protector in bat *** fibroblasts showed high expression of EPAS1,which enhanced the transcription of shelterin components TRF1 and TRF2,as well as DNA repair factor RAD50,conferring bat fibroblasts with resistance to senescence during long-term consecutive *** on a human single-cell transcriptome atlas,we found that EPAS1 was predominantly expressed in the human pulmonary endothelial cell *** in vitro-cultured human pulmonary endothelial cells,we confirmed the functional and mechanistic conservation of EPAS1 in telomeric protection between bats and *** addition,the EPAS1 agonist M1001 was shown to be a protective compound against bleomycin-induced pulmonary telomeric damage and *** conclusion,we identified a potential mechanism for regulating telomere stability in human pulmonary diseases associated with aging,drawing insights from the longevity of bats.

关键词： Bat Telomere Senescence EPAS1 M1001 Pulmonary endothelial cell

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A modified single-armed technique for microsurgical vasoepididymostomy

引用

Asian Journal of Andrology 2013年第1期15卷 79-82页

作者： Liang Zhao Chun-Hua Deng Xiang-Zhou Sun Yu Chen Wen-Wei Wang Liang-yun Zhao Ling-You Zeng Xiang-An tu Department of Urology Huangpu Hospital The First Affiliated Hospital Sun Yat-sen University Guangzhou 510700 China LDepartment of Urology First Affiliated Hospital Sun Yat-sen University Guangzhou 510080 China

This study is to evaluate the effectiveness of a modified single-armed suture technique for microsurgical vasoepididymostomy （VE） in patients with epididymal obstructive azoospermia. From September 2011 to December 2011, microsurgical two-suture longitudinal intussusception VEs were performed using our modified single-armed suture technique in 17 men with epididymal obstructive azoospermia at our hospital. Two of these patients underwent repeated VEs after previous failed VEs, and one patient underwent unilateral VE because of an occlusion of the left abdominal vas deferens. The presence of sperm in the semen sample at 3 months postoperation was used as the preliminary endpoint of this study. Each patient provided at least one semen sample at the 3-month time point, and the patency was assessed by the reappearance of sperm （〉 104 m I- 1） in the semen. The mean operative time for the modified technique was 219 min. Patency was noted in 10 men （58.8%）, including one patient who underwent repeated VE. The patient who underwent unilateral anastomosis manifested no sperm postoperatively in his semen. Sperm granulomas were not detected in this cohort. The results of this study demonstrate that our modified technique for microsurgical longitudinal intussusception VE is effective. We believe that it is a practical alternative that may reduce operation time and obviate the suture crossing.

关键词： epididymis microsurgery obstructive azoospermia single-armed technique vasoepididymostomy (VE)

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Role of bone marrow-derived mesenchymal stem cells in a rat model of severe acute pancreatitis

引用

World Journal of Gastroenterology 2012年第18期18卷 2270-2279页

作者： Xiao-Huang tu Jing-Xiang Song Xiao-Jun Xue Xian-Wei Guo yun-Xia Ma Zhi-Yao Chen Zhong-Dong Zou Lie Wang Department of General Surgery Fuzhou General Hospital of Nanjing Military RegionFuzhou 350025Fujian ProvinceChina

AIM:To investigate the role and potential mechanisms of bone marrow mesenchymal stem cells(MSCs) in severe acute peritonitis(SAP).METHODS:Pancreatic acinar cells from Sprague Dawley rats were randomly divided into three groups:nonsodium deoxycholate(SDOC) group(non-SODC group),SDOC group,and a MSCs intervention group(i.e.,a co-culture system of MSCs and pancreatic acinar cells + SDOC).The cell survival rate,the concentration of malonaldehyde(MDA),the density of superoxide dismutase(SOD),serum amylase(AMS) secretion rate and lactate dehydrogenase(LDH) leakage rate were detected at various time *** a separate study,Sprague Dawley rats were randomly divided into either an SAP group or an SAP + MSCs *** AMS,MDA and SOD,interleukin(IL)-6,IL-10,and tumor necrosis factor(TNF)-α levels,intestinal mucosa injury scores and proliferating cells of small intestinal mucosa were measured at various time points after injecting either MSCs or saline into *** both studies,the protective effect of MSCs was ***:In vitro,The cell survival rate of pancreatic acinar cells and the density of SOD were significantly reduced,and the concentration of MDA,AMS secretion rate and LDH leakage rate were significantly increased in the SDOC group compared with the MSCs intervention group and the Non-SDOC group at each time *** vivo,Serum AMS,IL-6,TNF-α and MAD level in the SAP + MSCs group were lower than the SAP group;however serum IL-10 level was higher than the SAP *** SOD level was higher than the SAP group at each time point,whereas a significant betweengroup difference in SOD level was only noted after 24 *** mucosa injury scores was significantly reduced and the proliferating cells of small intestinal mucosa became obvious after injecting ***:MSCs can effectively relieve injury to pancreatic acinar cells and small intestinal epithelium,promote the proliferation of enteric epithelium and repair of the mucosa,attenuate systemic in

关键词： Bone marrow mesenchymal stem cells Severe acute pancreatitis Intestinal barricade function Pancreatic acinar cells

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Responses of N_2O reductase gene(nosZ)-denitrifier communities to long-term fertilization follow a depth pattern in calcareous purplish paddy soil

引用

Journal of Integrative Agriculture 2017年第11期16卷 2597-2611页

作者： WANG Ying-yan LU Sheng-e XIANG Quan-ju YU Xiu-mei ZHAO Ke ZHANG Xiao-ping tu Shi-hua GU yun-fu Department of Microbiology College of ResourceSichuan Agricultural University Soil and Fertilizer Institute Sichuan Academy of Agricultural Sciences

The effect of long-term fertilization on soil denitrifying communities was analysed by measuring the abundance and diversity of the nitrous oxide （N2O） reductase gene, nosZ. Soil samples were collected from plots of a long-term fertilization experiment established in 1982 in Suining City, China. The fertilizer treatments were no fertilizer （CK）, three chemical fertilizer （CF） treatments （N, NP, NPK）, manure （M） alone, and manure with chemical fertilizers （NM, NPM, NPKM）. The abundance and diversity of the denitrifying bacteria were assessed by real-time quantitative PCR, terminal restriction fragment length polymorphism （T-RFLP）, and cloning and sequencing of nosZ genes. The diversity and abundance of nosZ-denitrifiers was higher in soil amended with manure and chemical fertilizers （CFM） than in soil amended with CF alone, and the highest in topsoil （0-20 cm）. The nosZ-denitrifier community composition was more complex in CFM soil than in CF soil： Specific species were detected only in the CFM soil. The abundance of nosZ-denitrifier in the NPKM treatment was approximately two times higher than that in the CK, N, and NPK treatments. Most of the cloned nosZ sequences were closely related to nosZ sequences from Bradyrhizobiaceae and Rhodospirillaceae in Alphaproteobacteria. Of the measured abiotic factors, soil organic matter correlated significantly with the abundance （P〈0.01）; available phosphorus correlated significantly with the topsoil community composition （P〈0.01）, whereas soil organic matter correlated significantly with the subsoil （20-90 cm） community composition （P〈0.01）. This study demonstrated that long-term CFM fertilization affected both the abundance and composition of the nosZ-denitrifier community.

关键词： fertilization community abundance denitrifiers soil depth

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Phorbol myristate acetate suppresses breast cancer cell growth via down-regulation of P-Rex1 expression

引用

Protein & Cell 2016年第6期7卷 445-449页

作者： Chuu-yun A.Wong haihong Jiang Peter W.Abel Margaret A.Scofield Yan Xie Taotao Wei Yaping tu Department of Pharmacology Creighton University School of MedicineOmahaNE 68178USA National Laboratory of Biomacromolecules Institute of Biophysics Chinese Academy of SciencesBeijing 100101China

Dear Editor,P-Rex1 is a Rac-selective guanine nucleotide exchange factor （GEF） that is synergistically activated by G-protein coupled receptors and receptor tyrosine kinases （Welch et al., 2002）. We previously reported that aberrantly upreg- ulated P-Rex1 promotes prostate cancer metastasis by activating Racl signals （Qin et al., 2009）.

关键词： guanine nucleotide factor

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

On the Paradox of Social Orienta-tion and Individual Orientation in Confucianism and Its Influence

引用

Social Sciences in China 2005年第4期26卷 149-150页

作者： tu Keguo Xiao yun(Translated ) the Institute of Confucianism Shandong Academy of Social Sciences 不详

In the Confucian value system the core values like benevolence, propriety, righteousness and filial piety are all oriented in society. Many other ideas expounded by Confucian scholars all show the tendency to set a higher value on society at the expense of individuals. For example, the ideal of inward sagehood and outward kingly governance esteemed by Confucian scholars treats kingly service to society as the ultimate purpose of being a sage or a man of virtue. The value concepts, promoted by Confucianism, of benefit to the state and the kingdom, loyalty to the sovereign and devotion to the country all place duty to society first.

关键词：儒学中国矛盾论实践论哲学

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

气相色谱-质谱法测定粮谷中5种除草剂残留

引用

食品科学 2010年第16期31卷 217-219页

作者：屠海云姜荷李玮杭州市质量技术监督检测院浙江杭州310019

建立气相色谱-质谱(GC-MS)法测定粮谷中残留的5种除草剂的方法。样品采用乙腈提取,乙二胺氮丙基硅烷(PSA)和氨基填料作为吸附剂净化,然后采用气相色谱-质谱测定,全扫描和选择离子监测模式同时检测,内标法单离子定量。结果表明:方法在0.0... 详细信息

建立气相色谱-质谱(GC-MS)法测定粮谷中残留的5种除草剂的方法。样品采用乙腈提取,乙二胺氮丙基硅烷(PSA)和氨基填料作为吸附剂净化,然后采用气相色谱-质谱测定,全扫描和选择离子监测模式同时检测,内标法单离子定量。结果表明:方法在0.05～0.5mg/L范围内呈现良好的线性关系,相关系数均大于0.999;在0.05、0.10、0.20mg/kg添加水平下,加标回收率在85%～99%之间,相对标准偏差(RSD)小于5%。采用基质分散固相萃取技术,实现样品的快速制备,有效地消除基质带来的干扰,灵敏度高,完全适合样品中5种除草剂残留量的日常批量检测和确证。

关键词：乙二胺氮丙基硅烷气相色谱-质谱除草剂粮谷

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effects of the potassium application rate on lipid synthesis and eating quality of two rice cultivars

引用

Journal of Integrative Agriculture 2023年第7期22卷 2025-2040页

作者： CHEN Guang-yi PENG Li-gong LI Cong-mei tu yun-biao LAN Yan WU Chao-yue DUAN Qiang ZHANG Qiu-qiu YANG Hong LI Tian Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province College of AgronomySichuan Agricultural UniversityChengdu 611130P.R.China

Lipid content has an important effect on rice eating quality,but the effects of fertilizer application rate on the lipid synthesis and eating quality of rice are not well ***(K)has a strong influence on rice quality and the requirement for K fertilizer in rice is greater than for nitrogen(N)and phosphorus(P)*** investigate the effects of K fertilizer on the lipid synthesis and eating quality of rice,we used Nanjing 9108(NJ9108,japonica)and IR72(indica)rice as experimental materials and four K levels:K0(0 kg ha^(-1)),K1(90 kg ha^(-1)),K2(135 kg ha^(-1))and K3(180 kg ha^(-1)).The results showed that the lipid content,free fatty acid(FFA)content,unsaturated fatty acid(UFA)content,malonyl-CoA(MCA)content,phosphatidic acid(PA)content,lipid synthesis-related enzyme activities and eating quality first increased and then decreased with increasing K in both *** maximum values were obtained under ***,the saturated fatty acid(SFA)content showed the opposite *** significant differences were found in pyruvate(PYR)content among the K *** protein and oxaloacetic acid(OAA)contents and phosphoenolpyruvate carboxylase(PEPCase)activity of NJ9108 first decreased and then increased with increasing K,and the minimum values were obtained under K2;while IR72 showed the opposite trend and the maximum values were obtained under ***,increasing K optimized the fatty acid components and increased the lipid content and eating quality of rice by enhancing lipid synthesis-related enzyme activities and regulating substrate competition for lipid and protein *** optimal K application rate for lipid synthesis,eating quality and grain yield was 135 kg ha^(-1)for both cultivars.

关键词： rice potassium application rate lipid content lipid synthesis-related enzyme fatty acid components eating quality

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：