广东虫草对腺嘌呤诱导的慢性肾衰竭大鼠的治疗作用

广东虫草Cordyceps guangdongensis是广东省微生物研究所近年发现并成功驯化的独有新品种,前期研究发现其具有抗氧化、抗疲劳、延缓衰老等药理作用,但其对慢性肾衰竭的治疗作用还未见报道。实验采用饲喂腺嘌呤诱导大鼠慢性肾衰竭（CRF）模型,观察比较了阴性对照组、阳性对照组、广东虫草子实体低、中、高剂量组CRF模型大鼠及正常健康大鼠对照组的血尿素氮、肌酐、24h尿量、尿蛋白量,以及肾组织病理变化。结果表明广东虫草子实体组能显著降低CRF大鼠血尿素氮和肌酐,能促进机体生成白蛋白和总蛋白,改善肾功能衰竭大鼠的临床症状及肾脏水肿、变大和病变程度。由此证明广东虫草子实体对大鼠的慢性肾衰竭有明显的治疗作用。     

北冬虫夏草液体菌种培养及栽培技术

<正>北冬虫夏草简介北冬虫夏草也称蛹虫草,分类学属子囊菌亚门,麦角菌科,虫草属,是一种药用及滋补功效为一体的食、药用真菌。其富含蛋白质、氨基酸、维生素等营养成分外,还含有丰富的虫草素、多糖、过氧化物歧化酶等与天然冬     

蛹虫草国内外研究的新进展

蛹虫草Cordyceps militaris具有多种药用功效,以及重要的经济价值,其人工培养已产业化.蛹虫草作为一种药食通用的虫生真菌被深入研究,在人工培养、菌种选育、分子生物学、活性成分等方面取得了良好的进展.本文根据最近的研究结果概述蛹虫草研究的进展.     

北冬虫夏草液体菌种培养及栽培技术

正北冬虫夏草简介北冬虫夏草也称蛹虫草,分类学属子囊菌亚门,麦角菌科,虫草属,是一种药用及滋补功效为一体的食、药用真菌。其富含蛋白质、氨基酸、维生素等营养成分外,还含有丰富的虫草素、多糖、过氧化物歧化酶等与天然冬虫夏草相似、且含量高于天然冬虫夏草的生理活性成分,其性质平和,不寒不燥,具有增强人体免疫力、滋肺补     

北冬虫夏草液体菌种培养及栽培技术

正北冬虫夏草简介北冬虫夏草也称蛹虫草,分类学属子囊菌亚门,麦角菌科,虫草属,是一种药用及滋补功效为一体的食、药用真菌。其富含蛋白质、氨基酸、维生素等营养成分外,还含有丰富的虫草素、多糖、过氧化物歧化酶等与天然冬虫夏草相似、且含量高于天然冬虫夏草的生理活性成分,其性质平和,不寒不燥,具有增强人体免疫力、滋肺补     

北冬虫夏草液体菌种培养及栽培技术

正北冬虫夏草简介北冬虫夏草也称蛹虫草,分类学属子囊菌亚门,麦角菌科,虫草属,是一种药用及滋补功效为一体的食、药用真菌。其富含蛋白质、氨基酸、维生素等营养成分外,还含有丰富的虫草素、多糖、过氧化物歧化酶等与天然冬虫夏草相似、且含量高于天然冬虫夏草的生理活性成分,其性质平和,不寒不燥,具有增强人体免疫力、滋肺补肾等功效,2009年根据《中华人民共和国食品卫生法》和《新资源食品管理办法》规定,被批准为新资源食品,     

北冬虫夏草液体菌种培养及栽培技术

正北冬虫夏草简介北冬虫夏草也称蛹虫草,分类学属子囊菌亚门,麦角菌科,虫草属,是一种药用及滋补功效为一体的食、药用真菌。其富含蛋白质、氨基酸、维生素等营养成分外,还含有丰富的虫草素、多糖、过氧化物歧化酶等与天然冬虫夏草相似、且含量高于天然冬虫夏草的生理活性成分,其性质平和,不寒不燥,具有增强人体免疫力、滋肺补肾等功效,2009年根据《中华人民共和国食品卫生法》和《新资源食品管理办法》规定,被批准为新资源食品,     

北冬虫夏草液体菌种培养及栽培技术

<正>北冬虫夏草简介北冬虫夏草也称蛹虫草,分类学属子囊菌亚门,麦角菌科,虫草属,是一种药用及滋补功效为一体的食、药用真菌。其富含蛋白质、氨基酸、维生素等营养成分外,还含有丰富的虫草素、多糖、过氧化物歧化酶等与天然冬虫夏草相似、且含量高于天然冬虫夏草的生理活性成分,其性质平和,不寒不燥,具有增强人体免疫力、滋肺补     

冬虫夏草的本草考证

对古代文献记载的"冬虫夏草"进行本草考证,正本溯源,古为今用,为冬虫夏草未来的研究和产业发展提供支撑。根据历代文献中记载"冬虫夏草"的特点,对冬虫夏草的名称来源、形态分布及功效等进行考证,对比冬虫夏草及其易混淆品亚香棒虫草Cordyceps hawkesii、凉山虫草Cordyceps liangshanensis、戴氏虫草Cordyceps taii,认为古代部分文献存在将混淆品记载为冬虫夏草的现象。冬虫夏草为冬虫夏草菌Ophiocordyceps sinensis寄生在蝙蝠蛾科昆虫幼虫上所形成的药材,药用历史悠久,是其他混淆品不可替代的药用品种。     

北冬虫夏草液体菌种培养及栽培技术

正北冬虫夏草简介北冬虫夏草也称蛹虫草,分类学属子囊菌亚门,麦角菌科,虫草属,是一种药用及滋补功效为一体的食、药用真菌。其富含蛋白质、氨基酸、维生素等营养成分外,还含有丰富的虫草素、多糖、过氧化物歧化酶等与天然冬虫夏草相似、且含量高于天然冬虫夏草的生理活性成分,其性质平和,不寒不燥,具有增强人体免疫力、滋肺补肾等功效,2009年根据《中华人民共和国食品卫生法》和《新资源食品管理办法》规定,被批准为新资源食品,2014年变更为新食品原料,为其规模化生产的迅速发展奠定了基础。     

Investigation of the mechanism of temperature sensitivity of the electroreceptors of ampullae of lorenzini

In experiments on Black Sea skates (Raja clavata), the potential of the receptor epithelium of the ampullae of Lorenzini and spike activity of single nerve fibers connected to them were investigated during electrical and temperature stimulation. Usually the potential within the canal was between 0 and –2 mV, and the input resistance of the ampulla 250–400 k. Heating of the region of the receptor epithelium was accompanied by a negative wave of potential, an increase in input resistance, and inhibition of spike activity. With worsening of the animal's condition the transepithelial potential became positive (up to +10 mV) but the input resistance of the ampulla during stimulation with a positive current was nonlinear in some cases: a regenerative spike of positive polarity appeared in the channel. During heating, the spike response was sometimes reversed in sign. It is suggested that fluctuations of the transepithelial potential and spike responses to temperature stimulation reflect changes in the potential difference on the basal membrane of the receptor cells, which is described by a relationship of the Nernst's or Goldman's equation type.I. P. Pavlov Institute of Physiology, Academy of Sciences of the USSR, Leningrad. I. M. Sechenov, Institute of Evolutionary Physiology and Biochemistry, Academy of Sciences of the USSR, Leningrad. Pacific Institute of Oceanology, Far Eastern Scientific Center, Academy of Sciences of the USSR, Vladivostok. Translated from Neirofiziologiya, Vol. 12, No. 1, pp. 67–74, January–February, 1980.     

Principles of organization and evolution of systems of regulation of functions

Evolution of living organisms is closely connected with evolution of structure of the system of regulations and its mechanisms. The functional ground of regulations is chemical signalization. As early as in unicellular organisms there is a set of signal mechanisms providing their life activity and orientation in space and time. Subsequent evolution of ways of chemical signalization followed the way of development of delivery pathways of chemical signal and development of mechanisms of its regulation. The mechanism of chemical regulation of the signal interaction is discussed by the example of the specialized system of transduction of signal from neuron to neuron, of effect of hormone on the epithelial cell and modulation of this effect. These mechanisms are considered as the most important ways of the fine and precise adaptation of chemical signalization underlying functioning of physiological systems and organs of the living organism