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extracts
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  提取物
    An experimental study on immunomodulating activity of Sibiraea Angustata extracts
    柳茶提取物免疫调节作用的实验研究
短句来源
    ANALYSIS OF TERPENOIDS IN PETROL EXTRACTS OF EIGHT ARTEMISIA SPECIES
    八种蒿属植物石油醚提取物中萜类成分分析
短句来源
    The results showed that the α, α-diphenyl-β-picrylhydrazyl (DPPH) free radical-scavenging ratio by intact cells and cell-free extracts of a L1001 109 mL-1 lactic acid bacteria were 36.2% and 37.9% respectively, and those of 109 mL-1 F12 cell suspension were 24.4% and 27.0%, respectively;
    研究了两株乳酸菌完整细胞和无细胞提取物的DPPH自由基和羟自由基清除能力。 结果表明,菌体浓度为109mL-1的L1001完整细胞和无细胞提取物的DPPH自由基清除率分别为36.2%和37.9%,同样浓度的F12完整细胞和无细胞提取物对DPPH自由基的清除率分别为24.4%和27.0%;
短句来源
    Objective:To determine the effects of sonicated extracts of Porphyromonas gingivalis (P. gingivalis) on vascular endothelial growth factor (VEGF) and matrix metalloproteinase-9 (MMP-9) expression in periodontal ligament stem cells(hPDLSCs). Methods: P. gingivalis were grown under standard anaerobic culture conditions, and the bacterial inocula were harvested, and sonicated bacterial extracts were prepared from the bacterial pellet by centrifugation.
    目的:观察牙龈卟啉单胞菌(Porphyromonas gingivalis,Pg)超声提取物对人牙周膜干细胞(human per-iodontal ligament stem cells,hPDLSCs)表达血管内皮生长因子(vascular endothelial growth factor,VEGF)及基质金属蛋白酶-9(matrix metalloproteinase-9,MMP-9)的影响。
短句来源
    SDS-PAGE analysis of the salivary gland extracts revealed 33 protein bands, which consisted of 8 main bands and their molecular weights were 167 kD, 106 kD, 78 kD, 69 kD, 56 kD, 51 kD, 35 kD and 15 kD respectively
    雌蜱唾液腺提取物经SDS-PAGE分析,显示出33条蛋白带,其中主带8条,分子量分别为167 kD、106 kD、78 kD、69 kD、56 kD、51 kD、35 kD和15 kD
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    EXPERIMENTAL ANALYSIS OF EGG MATURATION INDUCED BY PITUITARY EXTRACTS
    垂体浸出液诱发蟾蜍卵球成熟的实验分析
短句来源
    Preparation of Packaging Extracts of Bacteriophage λfrom BHB2688 and BHB2690 and in vitro Packaging of λDNA
    从大肠杆菌BHB2688和BHB2690制备噬菌体λ包装蛋白及体外包装λDNA
短句来源
    Preliminary Study on Anticancer Effect and Affecting Mouse Immune Function of Crude Extracts from the Actinintia Eriantha Benth Root.
    毛花猕猴桃根粗提物抗癌效应及对小鼠免疫功能影响的初步研究
短句来源
    The Antineoplastic and Life Prolongation Activities of Two Plant Extracts JAI and JO1
    防癌延寿“JA1”、“JO1”
短句来源
    Comparison of Four Serological Methods for Detecting CMV and TMV in the Crude Extracts of Diseased Tobacco Leaves
    四种血清学方法检测烟草TMV、CMV的比较
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  extracts
The aqueous and solvent extracts when tested against 11 gram-negative and 2 gram-positive bacteria and 3 fungi expressed activity to most of the organisms.
      
Methanol extract showed more activity amongst all the solvent extracts, particularly remarkable activity recorded against gram-positive bacteria.
      
Aqueous and organic solvent extracts tested by agar-well diffusion method against 12 human pathogenic bacteria and 3 fungal strains showed activity to most of the organisms.
      
Fermentation broth and cell extracts were tested against typed test organisms.
      
The activity profiles of the intracellular and extracellular crude extracts showed that the antibiotic producing culture produces two or more compounds, one being intracellular (antifungal), other being extracellular (antibacterial).
      
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Ericerus pela Chavannes, the insect producing white wax,belongs to Coccidae,Homoptera. The female adult lays eggs while the male larva produces wax, whichis a well-known product from Southwest China. The wax secreted by the malelarvae may be boiled and extracted to result in something known as white wax.Its boiling point reaches above 82-83℃. It has manifold uses. Before WorldWar Ⅱ, besides the consumption at home, th greater part of this product wasexported abroad. The supply of the female adults of this...

Ericerus pela Chavannes, the insect producing white wax,belongs to Coccidae,Homoptera. The female adult lays eggs while the male larva produces wax, whichis a well-known product from Southwest China. The wax secreted by the malelarvae may be boiled and extracted to result in something known as white wax.Its boiling point reaches above 82-83℃. It has manifold uses. Before WorldWar Ⅱ, besides the consumption at home, th greater part of this product wasexported abroad. The supply of the female adults of this wax insect in the wax-producing districtusually appears short annually, due to a peculiarity in the growth of this creature;and therefore naturally exist two correlative districts, that is a district of adultproduction and one of wax production. As these two.districts are located morethan 500 kilometres apart,every year the female adults ready to be transplantedon he feeding trees in the district of wax production have to be supplied bythe district of adult production, and they must be carried over a long distance.The carriage of the female adults of the wax insect from one place to theother has been practiced for about five hundred years by the people engaged inwax production. This article reports on a test of transportation of the female adults of the wax insect from Paikuowan (白菓湾) in Hweili County (会理县), formerly of SikangProvince to Huhtaokou (核桃沟) in Omei County (峨眉县), Szechwan Province.Investigations in this connection were made from the April 30 to May 13, 1941. It has long been the aim of the growers to produce the female adults of theinsect and the wax in the same locality. With this realized, the area of wax pro-duction would be enlarged, and the quantity of wax increased. However, as the female adults of the insect in the distr .ct of wax produc-tion are subject to such natural adversities as geographical features, temperatureand humidity, parasitic enemies etc., up to the present they cannot be raised andsapplied insufficient quantity in this district. For this reason, to in prove themethod of transporting the adults female insects to the wax-producing district, toShorten the time on the way,and to increase the vitality of the male larvae-all these have become the crucial questions in the promotion of wax production. The principal explanation, knowh for centuries, with regard to the impossi-bility to raise the female adults of the insects in the district of wax productionhas been the peculiar fact that the female larvae could not be carried in quickorder to a place over 500 kilometres apart. The present test has proved that al-though the female larvae were, in the greater part, hatched out on the way, therewere still a part of them reaching the destination in safety. Valuable informat-ion was also obtained on the hatching rate of the male and female larvae on theway, the influence of environmental factors on the sex ratio, the different speciesof parasitic enemies, etc.. It is hoped thet the facts thus ascertained will be ofservice to improving the methods of wax production.

白蜡虫是我国的特产,古代农民远在元朝已有饲养。在过去全国的白蜡年产量约在五万至十万担间,据1918年重庆海关报告有一万一千余担,值银七十七万余海 关两。解放前一、二十年来,由于国民党反动派的不重视和摧残,已逐渐衰落。白蜡是化学工业上的重要原料,用途很广,饲养蜡虫又是西南各省农民的主要副业,而且农民群众已积累了非常丰富的传统经验。因此,为了总结群众经验,发扬科学遗产,改进饲养技术,振兴蜡业,我们希望能引起有关方面的注意和进一步研究,除研究改进白蜡虫的经管技术外,又须注意白蜡在工业上的用途。 白蜡虫的种蜡异地繁荣,在目前已成为自然的形势,而蜡区种虫不能自给,是白蜡业发展上的基本障碍。我们通过本次测验之后,认为我国适于蜡虫(雄虫)繁育的地方很多,如四川、湖南、浙江、安徽、福建、江西、江苏等丘陵地带都可扑虫产蜡,关键问题在于改善运种方法。在目前我国交通运输业已有普遍发展的基础上,只要用航空运种即可在短时间内将种虫运送至全国蜡区。扩大蜡区,增加农民副业收入,发扬我国科学遗产,为国家创造财富,利用益虫为生产服务,在目前已完全有实现的可能。

(1) Cytochrome c containing 0.43% iron has been obtained from beef, pig or horse heart muscles by direct adsorption of the neutralized trichloroacetic acid extracts of heart muscle on the cation exchanger"synthetic zeolite" followed by elution with 3.84 M ammonium sulfate and precipitation with 20% trichloroacetic acid. This provides a simple method for large-scale preparation of pure cytochrome c. (2) The ratio of optical densities at 550 mμ(reduced) and 278 mμ of 0.43% iron cytochrome c varies, with...

(1) Cytochrome c containing 0.43% iron has been obtained from beef, pig or horse heart muscles by direct adsorption of the neutralized trichloroacetic acid extracts of heart muscle on the cation exchanger"synthetic zeolite" followed by elution with 3.84 M ammonium sulfate and precipitation with 20% trichloroacetic acid. This provides a simple method for large-scale preparation of pure cytochrome c. (2) The ratio of optical densities at 550 mμ(reduced) and 278 mμ of 0.43% iron cytochrome c varies, with its degree of reduction, from 1.13 to 1.26. The average ratio of our preparations is 1.23. (3) The absorption spectra(230-600 mμ) of oxidized and reduced cytochrome c have been measured. The molecular extinction coefficient at 550 mμ of oxidized, 0.43% iron, cytochrome c is 0.80×10~4. This value differs considerably from that reported in the literature. (4) Some enzymic properties of cytochrome c containing 0.43% iron are compared with those of a preparation containing 0.34% iron and are found to be identical. Both can be converted into''endogenous" cytochrome c. (5) Whether pure cytochrome c contains more than 0.43% iron has been discussed. It seems that no convincing evidence has been presented to show that cytochrome c preparations with iron content higher than 0.43% as obtained by some workers do not contain a small amount of iron-rich impurity.

(一)用陽離子交换劑(synthetic zeolite)直接吸附高等動物心肌抽提液一次,並用3.84M硫酸銨作洗脫劑,即可製得含鐵量0.43%的細胞色素c。因此提供了一個大量製備純細胞色素c的簡單方法。 (二)含鐵量0.43%的細胞色素c,它的550mμ和278mμ光密度的比值,視產品的還原程度而定,其範圍從1.13到1.26,我們所製得的產品,其比值在1.23左右。 (三)我們测量了氧化及還原的細胞色素c(含鐵0.43%)從230mμ到600mμ的吸收光譜,並發現和前人所報告的略有不同。氧化細胞色素c在550mμ的消光係數為0.80×10~4,此值與文獻上的數值相差很多。 (四)我們比較了含鐵量0.43%的細胞色素c和含鐵量0.34%的細胞色素c的一些酶性質,證明他們是相同的;並且兩者都可以變成“內源”細胞色素c。 (五)我們認為現有的實驗證據不足以說明純細胞色素c的含鐵量大於0.43%。

It has been found, that the extracts of different tissues (liver, spleen, muscles, kidney), made according to Filatov, are capable of stimulating adrenal cortex as judged by their ability to cause a decline in adrenal ascorbic acid after intraperitoneal administration into albino rats. But this adrenocorticotropic action requires the presence of an intact pituitary gland, that is to say, all the tissue extracts examined, contain an ACTH releasing factor, which stimulates the release of ACTH from...

It has been found, that the extracts of different tissues (liver, spleen, muscles, kidney), made according to Filatov, are capable of stimulating adrenal cortex as judged by their ability to cause a decline in adrenal ascorbic acid after intraperitoneal administration into albino rats. But this adrenocorticotropic action requires the presence of an intact pituitary gland, that is to say, all the tissue extracts examined, contain an ACTH releasing factor, which stimulates the release of ACTH from anterior pituitary. It has been found, that the ACTH releasing factor is ultrafiltrable. The possible role of this factor in the regulation of anterior pituitary secretion of ACTH in stress and in clinical tissue-therapy is discussed.

以腎上腺抗壞血酸降低法證明不同的組織浸液(肝、脾、腎、肌)均具有興奮腎上腺皮質的作用,但此作用是通過腦垂體前葉ACTH的分泌而發揮的,在割出腦垂體的動物組織浸液即不再呈現作用。由於此組織浸液所含有的有效成份可以透過超瀘膜,故其可能為小分子的代謝產物。最後並將此實驗的結果聯系腦垂體前葉ACTH的分泌機制及組織療法的功效加以討論。

 
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