Introduction to the International Symposium on Lipid Science and Health and research progress in lipid science and health     

《中国油料作物学报(英文)》2021,6(4):159-163

The International Symposium on Lipid Science and Health (ISLSH), which was organized annually by Oil Crops Research Institute of Chinese Academy of Agricultural Sciences (OCRI-CAAS) since 2016, has gained a strong reputation and attracted hundreds of delegates from around the world for discussion of lipid research trends and advances every year, to promote research and academic exchanges in the fields of lipid science and health. The 5th International Symposium on lipid Science and Health was successfully held in Wuhan, China, from October 23rd to 25th, 2020, to celebrate the 60th anniversary of OCRI-CAAS. The two-day symposium gathered well-known experts specialized in lipid science to share the current state of lipid research with emphasis on aspects covering: (1) lipid profiling and characterization, (2) lipid preparation and modification, (3) lipid improvement and regulation, and (4) lipid nutrition and health. The symposium was conducted by a combination of on-site and network meeting. More than 250 distinguished delegates from academia and industry participated in the on-site multidisciplinary meeting, and thousands of scholars attended the virtual event. This paper is as a record of the symposium proceedings and a brief summary of the advances and trends in 4 aspects of lipid science and health.  相似文献   

The Use of a Metabolic Disorder Index as a Predictor for Metabolic Eliminations in Endurance Horses     

《Journal of Equine Veterinary Science》2017

The equine endurance race involves both aerobic and anaerobic metabolisms of the horse. The intense physical activity over an extended period often causes susceptible horses to develop metabolic signs or problems resulting in elimination from races. Thus, the objective of this study was to develop a method for prediction and validation of a metabolic disorder index (MDI) to be used before endurance races. Three hundred seventy-five Arabian (n = 152) and Arabian cross (n = 223) endurance horses aged from 6 to 15 years and weighing between 350 and 450 kg were selected for the study in Malaysia. Blood samples were collected at pre- and post-race periods. The significant (P < .05) findings in horses with metabolic disorder were packed cell volume (0.50 ± 0.06 LL−1), creatine kinase (1,275.89 ± 121.45 UL−1), interleukin-6 (2.01 ± 0.89 ng/mL), decreased glutathione reductase (26.57 ± 3.95 ng/mL), and chloride (94.98 ± 8.12 mmol/L). A new method called MDI was developed as a predictor for horses with the potential to develop metabolic disorders in endurance races. The MDI indicated a higher value greater than 5.5 for those eliminated and lower value below 5.5 for those that completed the race successfully, this proved to be accurate in the prediction of metabolic disorder in endurance horses. The MDI is an innovative and simple method used as a prediction method that will assist the equine endurance society to reduce the rate of elimination and to safeguard against serious medical problems during endurance races in the tropics.  相似文献   

高原地区肉鸡能量、氮和氨基酸代谢率测定及其方法的研究   总被引：11，自引：1，他引：10  

武秀云  柴沙驼  王万邦  刘书杰  谢敖云  赵月萍  仇桂芳  张晓卫 《青海畜牧兽医杂志》2001,31(5):3-5

采用经典全收粪代谢试验方法和Sibald强饲快速法，在青海省西宁地区测定了爱拔益加肉仔鸡的能量、氮和氨基酸代谢率，并对肉用公鸡和蛋用公鸡的代谢率进行了比较。结果表明，高原地区肉用公鸡生长期（29-60日龄）的能量、氮和氨基酸代谢率随日龄的增加而降低；日粮能量、蛋白水平对其能量代谢率无影响，对氮和氨基酸代谢率有影响。35-38日龄和57-60日龄期间，肉用公鸡的能量代放率和总氨基酸代谢率显著低于蛋用公鸡；4-5月龄肉用公鸡的表观能量代谢率显著低于蛋用公鸡。未去盲肠公鸡对豆粕、肉骨粉、脱毒菜籽饼的氨基酸表观和真代谢率高于去盲肠鸡；公鸡去盲肠后对低纤维素日粮中的消化率影响较大；内源物矫正对鸡代谢试验测定结果具有可靠性和精确性。用体外胃蛋白酶法测定的三种蛋白质饲料的氨基酸代谢率与体内法具有较好的回归关系。  相似文献   

In ovo embryotoxicity of α-endosulfan adversely influences liver and brain metabolism and the immune system in chickens     

Pushpanjali  R.L. Prasad  S.K. Singh  S.B. Jadhao 《Pesticide biochemistry and physiology》2005,82(2):103-114

There is a lack of laboratory-based embryonic chicken toxicity studies with the ecologically relevant low dose/s of endosulfan that utilizes a more practical approach such as the chorioallontoic membrane (CAM) injection. In this investigation, 2μg AR grade α-endosulfan/egg (40% of LD₅₀ for embryos) was injected through the CAM in 12-day-old chicken embryos and the activities of glucose-6-phosphatase (G6Pase, EC 3.1.3.9), fructose 1,6-diphosphatase (FDPase, EC 3.1.3.11), adenosine triphosphatase (ATPase, EC 3.6.1.3) and succinic dehydrogenase (SDH, EC 1.3.99.1) and DNA and RNA content in liver and brain tissues and acetyl cholinesterase (AChE, EC 3.1.1.7) in the latter were determined at 24, 48, and 72 h post-exposure. The wet weight of the embryos did not differ between groups. Following endosulfan exposure, except increase in the hepatic ATPase activity (P < 0.01), there was a significant decrease in the following parameters: G6Pase activity in both the liver and brain (P < 0.01), SDH activity in the brain (P < 0.01), brain overall DNA and RNA concentration (P < 0.05), brain AChE activity (P < 0.01). Exposure of 18-day-old embryos to 2-μg endosulfan for 24 h caused decrease (P < 0.01) in the lymphocyte count and IgG content. Histopathology of thymus and bursa of Fabricius revealed a reduction in the population of thymic follicles, smaller thymocytes with the clear vacuoles in cytoplasm and fewer bursocytes accompanied by infiltration of erythrocytes in lymphoid follicles of the endosulfan-treated embryos. It was inferred that in ovo injection of 0.041 μg/g egg weight of α-endosulfan suppress gluconeogenesis (main energy source in embryonic life), nerve transmission, and immunity.  相似文献   

Cortical gene expression pattern in rat focal cerebral ischemia     

ZHANG Zhan-jun  YING Kang  WANG Zhong  ZHANG Xiao-yan  LIU Jian-xun  HUANG Yan  XU Li  WEI Cui-e  WANG Yong-yan 《园艺学报》2004,20(8):1427-1433

AIM: To investigate the genes differential expression in cortex during rat focal cerebral ischemia.METHODS: cDNA microarray chips containing numerous cDNAs were used to investigate the gene expression pattern between samples of focal cerebral ischemia and sham-control operation rats. RESULTS: Two hundred and eleven genes differentially expressed were screened out, among these genes, up-and down-regulated genes were 199 and 12, respectively. CONCLUSIONS: The analysis of gene expression pattern of focal cerebral ischemia based on cDNA microarray can realize high-throughput screening of the genes associated with the focal cerebral ischemia. The differential expression of genes may be related to the pathogenesis of focal cerebral ischemic diseases.  相似文献   

Expression profiling identifies differentially expressed genes associated with the fusarium head blight resistance QTL 2DL from the wheat variety Wuhan-1     

《Physiological and Molecular Plant Pathology》2015

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棉花蔗糖合成酶基因家族在纤维发育期时空表达模式分析     

Huang Sheng  He Peng  Tian Lili  Yu Jianing 《棉花学报》2015,27(4):317-328

蔗糖合成酶(Sucrose Synthase)是调控植物糖类代谢的关键酶之一,在植物生长发育及渗透调节过程中起着重要的作用。该酶为多基因家族,各成员在植物不同组织及不同发育阶段发挥不同的作用。陆地棉(Gossypium hirsutum)中有15个Sus成员,本研究利用转录组高通量测序及实时定量PCR技术,检测了该基因家族的表达模式。结果表明,Gh Sus1D、Gh Sus3A、Gh Sus3D和Gh Sus6D在起始期(0~3 DPA)大量表达;GhSus7D在10 DPA的纤维中表达量快速增加,达到同期突变体胚珠的4.7倍;Gh Sus1A、Gh Sus5D在纤维伸长期(5~15 DPA)表达量显著高于胚珠,分别在10 DPA、15 DPA时达到峰值;Gh Sus3A、Gh Sus3D、和Gh Sus6D在纤维发育(15 DPA)时表达量重新上升,且在20 DPA时仍处于较高表达水平。Sus基因家族组织表达模式分析表明,它们在陆地棉品种徐州142野生型和突变体中的组织表达模式基本相同,根、茎、叶、花中没有显著差异。但不同Sus基因具有不同的组织表达特异性。  相似文献   

基于紫花苜蓿混播草地的全草型肉羊放牧育肥模式案例研究     

何峰  李向林  仝宗永  马钊 《草地学报》2020,28(1):273-278

本研究旨在探讨紫花苜蓿（Medicago sativa L.）混播草地放牧利用的生产潜力和集成全草型集约化肉羊放牧育肥技术模式。2017-2018年，在位于河北省廊坊市的中国农业科学院国际农业高新技术产业园内开展了2年羔羊育肥的划区轮牧试验，研究了紫花苜蓿混播草地的地上生物量、育肥羊增重以及羊肉品质的变化规律。结果表明：混播草地地上生物量超过11.2 tDM·hm^-2，5月份紫花苜蓿混播草地的粗蛋白为20.92%，每公顷紫花苜蓿混播草地可满足51只育肥羊、放牧育肥150天，每只增重30 kg所需的干物质、代谢能和粗蛋白三个方面的全部需求。与此同时，紫花苜蓿混播草地还可以显著增加羊肉中欧米伽3型多不饱和脂肪酸的含量，n-6/n-3比例为2.72，羊肉健康品质显著提高。以紫花苜蓿混播草地为基础的全草型肉羊放牧育肥技术具有广阔的应用前景，对我国苜蓿产业以及草地畜牧业发展具有重要意义。  相似文献   

Effect of water deficiency on relationships between metabolism,physiology,biomass,and yield of upland cotton(Gossypium hirsutum L.)     

Tohir A BOZOROV  Rustam M USMANOV  YANG Honglan  Shukhrat A HAMDULLAEV  Sardorbek MUSAYEV  Jaloliddin SHAVKIEV  Saidgani NABIEV  ZHANG Daoyuan  Alisher A ABDULLAEV 《干旱区科学》2018,10(3):441-456

Drought is a common abiotic stress that considerably limits crop production. The objective of this study is to explore the influence of water deficiency on the yield, physiologic and metabolomic attributes in upland cotton cultivars(Gossypium hirsutum L). Cotton cultivars, 'Ishonch' and 'Tashkent-6' were selected to study the relationships among their physiologic, metabolomic and yield attributes during water deficiency. Deficit irrigation was designed by modifying the traditional watering protocol to reduce water use. Results indicate that cotton cultivars respond differently to water deficit stress. Water deficit significantly influenced plant height, the number of internodes, and sympodial branches in both cultivars. However, yield components such as the number of bolls, boll seed, lint mass, and individual plant yield were significantly reduced only in 'Tashkent-6'. The leaf area decreased and the specific leaf weight increased in 'Ishonch' under deficit irrigation conditions. However, 'Tashkent-6' demonstrated significant water loss compared to 'Ishonch', and both cultivars showed reduced transpiration rates. Untargeted metabolite profiles of leaves showed clear separation in 'Ishonch', but not in 'Tashkent-6' under deficit irrigation compared to full irrigation. The individual metabolites such as proline and galactinol showed strong association with yield under water deficit stress. Moreover, this study indicates that leaf area and transpiration intensity influence yield during water deficiency. In summary, the correlation among morpho-physiologic, metabolic, and yield components significantly varied between the two cultivars under water deficiency. The flowering stage was sensitive to water stress for both cultivars. The direct relationship between physiology, metabolism, and yield may be a useful selection criterion for determining candidate parents for cotton drought tolerance breeding.  相似文献   

Effect of Age,Season, Body Condition,and Endocrine Status on Serum Free Cortisol Fraction and Insulin Concentration in Horses          下载免费PDF全文

K.A. Hart  D.M. Wochele  N.A. Norton  D. McFarlane  A.A. Wooldridge  N. Frank 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2016,30(2):653-663

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