Is the metabolic syndrome a useful clinical concept in dogs? A review of the evidence     

Kurt R. Verkest 《Veterinary journal (London, England : 1997)》2014,199(1):24-30

The metabolic syndrome is a set of risk factors for the development of type 2 diabetes, atherosclerosis, coronary heart disease and stroke in human beings. The term has recently been applied to dogs that exhibit components of the human metabolic syndrome, specifically visceral obesity, hypercholesterolaemia, hypertriglyceridaemia, hypertension and fasting hyperglycaemia. Obese dogs, like obese humans, are known to develop resistance to the glucose-lowering effects of insulin, and develop increased circulating concentrations of triglycerides, cholesterol and blood pressure. Unlike humans, however, obese dogs do not develop fasting hyperglycaemia or atherogenic hyperlipidaemia. Importantly, there is no evidence that dogs develop type 2 diabetes. Atherosclerosis, coronary heart disease and stroke are rare and not known to be associated with obesity in dogs. On the basis of current knowledge, the use of the term ‘metabolic syndrome’ in dogs does not appear to have merit.  相似文献   

单羰基姜黄素类似物对Ⅱ型糖尿病大鼠非酒精性脂肪肝的治疗作用研究     

侯杰  廖敏  叶先才  沈忠飞 《现代农业科技》2014,(5):276-278

[目的]研究单羰基姜黄素类似物(代号B06)对Ⅱ型糖尿病大鼠非酒精性脂肪肝糖脂代谢紊乱的影响。[方法]应用高糖高脂饲料喂养,小剂量STZ干扰建立Ⅱ型糖尿病大鼠模型[1],并随机分模型组、A75治疗组、C66治疗组、正常对照组,各组均灌胃治疗12周;检测各组大鼠血生化指标[2]。[结果]单羰基姜黄素类似物能明显改善试验性Ⅱ型糖尿病大鼠的血糖升高,FINS明显低于模型组;肝脏TC、血清TG、TC有明显的降低作用,对血清HDL有明显的升高作用,有统计学意义;[结论]单羰基姜黄素类似物对Ⅱ型糖尿病大鼠非酒精性脂肪肝有一定的治疗作用。  相似文献   

Habitat structure and prey aggregation determine the functional response in a soil predator-prey interaction     

Olivera Vucic-Pestic  Björn C. Rall  Ulrich Brose 《Pedobiologia》2010,53(5):307-5

Functional responses describe the per capita consumption rates of predators depending on prey density, which quantifies the energy transfer between trophic levels. We studied a typical interaction of the litter-soil systems between hunting spiders (Pardosa lugubris; Araneae: Lycosidae) and springtails (Heteromurus nitidus; Collembola: Entomobryidae) at varying habitat structure, i.e. with moss vs. without moss. We found a hyperbolic increase in consumption (functional response type II) in the treatment without habitat structure that was converted into a roller-coaster (or dome-shaped in a broad sense) functional response in treatments with habitat structure. Additional experiments suggest that the reduced per capita consumption rates at high prey densities may be explained by aggregative defence behaviour of the springtails. Experimentally, this behaviour was induced by the presence of habitat structure. We analyzed the net-energy gain of this predator-prey interaction by comparing the predator’s metabolic energy loss to its energy gain by consumption. In treatments with habitat structure, the net-energy gain of the predator was limited at intermediate prey densities where prey aggregation reduced the consumption rates. Our results stress the importance of habitat structure and prey behaviour in shaping the functional response in a typical soil-litter predator-prey interaction.  相似文献   

Role of type II innate lymphoid cells in browning of white adipose tissue     

SUN Jun  LIU Chao-bo  PAN Xiu-he  JIANG Wen-wen  LI Ming-cai  LI Yan 《园艺学报》2017,33(2):365

Type II innate lymphoid cells (ILC2s) are widely distributed in the blood, intestines, trachea, lung, spleen, liver, animal fat and skin, and involved in the innate immune responses. ILC2s have attracted much attention for its important roles in the conversion of white adipose to beige adipose. Studies have shown that ILC2s are essential for the proliferation and differentiation of adipocyte precursor cells, and they also play a vital role in anti-parasitic infection and allergic inflammation. This review discusses the discovery, differentiation, development, distribution and function of ILC2s, and their relationships with the browning of white adipose tissue for providing valuable references on understanding the pathogenesis, prevention and treatment of obesity and fat metabolism disorders.  相似文献   

青海东部旱区混交林营造技术     

刘霞 《青海农林科技》2005,(4):58-59

根据青海省东部旱区的生态气候特点，从混交造林的树种选择、混交方法、混交类型等方面提出了适宜的混交林营造技术方法。  相似文献   

我国棚室覆盖材料的应用与发展（上）   总被引：10，自引：1，他引：9  

张真和  李建伟 《长江蔬菜》1997,(7):1-3

通过对棚室覆盖材料的沿革，种类及功用，应用与发展，问题与对策等的论述，阐述了我国棚室覆盖材料的开发应用现状和研究发展方向。  相似文献   

土壤生态型及其应用   总被引：2，自引：0，他引：2  

杨万勤  王开运  宋光煜 《中国生态农业学报》2002,10(1):38-40

简术了土壤生态型的概念和类型,指出土壤生态型研究对作物育种、土壤资源配置、区域耕作及生态农业建设等具有重要的指导作用。  相似文献   

Effect of Fe, Mn or Al Compounds on Humification of Three Types of Plant Residues during Thermal Incubation     

Socorro Asuncion Bulosan-Atendido  Takeshi Suzuki  Nobuhide Fujitake  Hiroo Otsuka 《Soil Science and Plant Nutrition》2005,51(7):925-933

  相似文献   

不同穗型水稻品种灌浆期生理特性的差异   总被引：3，自引：0，他引：3  

李雪梅  樊金娟  徐正进 《沈阳农业大学学报》2003,34(5):347-350

在大田条件下，研究了直立穗和弯曲穗型水稻品种灌浆期部分生理特性，结果表明：直立穗型品种上3叶叶绿素含量明显高于弯曲穗型品种，且随生育进程叶片衰老较慢；直立穗型品种的剑叶和倒3叶SOD、ATPase活性比弯曲穗型品种的高，而POD活性则是弯曲穗型品种的高；直立穗型品种的强势粒中ATPase活性在灌浆前期高于弯曲穗型品种，而灌浆后期则低于弯曲穗型品种。直立穗型品种的强势粒和叶片中内源激素ABA的含量在灌浆前期都低于弯曲穗型品种，而灌浆后期则高于弯曲穗型品种。  相似文献   

一个新的体外快速鉴定十字花科黑腐病菌Ⅲ型效应物的报告质粒的构建     

唐菲菲  韩恩兴  梁业瀛  刘三  姜伯乐 《广西农业生物科学》2011,30(5):626-631

植物病原菌侵染寄主的过程就是病原菌和寄主植物相互作用的过程。在这个相互作用过程中,Ⅲ型分泌系统和Ⅲ效应物与病原菌致病密切相关。大部分革兰氏阴性植物病原菌通过Ⅲ型分泌系统定向的把效应物蛋白传递到宿主细胞,效应物蛋白进入植物体引起致病或过敏反应。本研究将百日咳杆菌的腺苷酸环化酶基因连接至含启动子的pLAFRJ载体上,从而构建出一个新的体外快速鉴定Ⅲ型效应物的报告质粒pJ-JA,并用已鉴定为Ⅲ型效应物基因的十字花科黑腐病菌XC1553的启动子和信号区验证该报告质粒,证明这个系统是可以工作的。该报告质粒为进一步精确筛选鉴定十字花科黑腐病菌Ⅲ型效应物提供了材料。  相似文献