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Comptes rendus hebdomadaires des seances de l'Academie des sciences. Serie D: Sciences naturelles最新文献

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[Adrenal gland growth of the ovine fetus in the end of gestation: evolution of DNA and of membrane proteins]. 妊娠末期羊胎儿肾上腺的生长:DNA和膜蛋白的进化。
P Durand, M Bosc, A Nicolle

The adrenal weight of the ovine fetus increases dramatically during late pregnancy. This increase is achieved in three periods: one of DNA duplication between two phases of cellular hypertrophy. During cellular hypertrophy an important biosynthesis of membrane proteins is observed. This development concerns essentially the adrenal cortex.

绵羊胎儿的肾上腺重量在妊娠后期急剧增加。这种增加是在三个时期实现的:一个是细胞肥大的两个阶段之间的DNA复制。在细胞肥大过程中,观察到细胞膜蛋白的重要生物合成。这种发展主要涉及肾上腺皮质。
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引用次数: 0
[Ultrastructural aspects of reconstitution of the basal membrane in associations of dental components cultured in vitro]. [体外培养牙组织中基底膜重构的超微结构方面]。
J M Meyer, V Karcher-Djuricic, M Osman, J V Ruch

Separation of the enamel organ and pulp of mice tooth germs by trypsin removed the basal lamina. Within 18 hours in cultivated reassociations of enamel organ and pulp, a new lamina was deposited. When the epithelial component was cultivated alone, no basal lamina formed.

胰蛋白酶分离牙胚牙釉质器官和牙髓,使牙胚基底层脱落。牙釉质器官与牙髓再结合后,在18小时内形成新的牙板。当上皮成分单独培养时,未形成基底层。
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引用次数: 0
[Excretion of sialoglycopeptides in mucolipidosis I]. [粘液脂质病中唾液糖肽的分泌]。
M Lemonnier, D Lecat, R Bourrillon, P Maroteaux

Mucolipidosis I involves a tremendous increase of the urinary excretion of sialoglycopeptides and sialyloligosaccharides. This enhancement is due to the excretion of O- and N-glycosidic peptides and oligosaccharides, which normal urine is devoid of as shown by the chemical composition and electrophoresis or thin-layer analysis. This finding is in agreement with the recent finding of an alpha-neuraminidase deficiency for this disease.

黏液脂质沉积症涉及尿中唾液糖肽和唾液寡糖的大量增加。这种增强是由于O-和n-糖苷肽和寡糖的排泄,这些是正常尿液所缺乏的,如化学成分和电泳或薄层分析所示。这一发现与最近发现的该疾病的α -神经氨酸酶缺乏症一致。
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引用次数: 0
[Interference of hydrazine derivatives with the tyrosinase-tyrosine reaction]. [肼衍生物对酪氨酸酶-酪氨酸反应的干扰]。
J Fourche, H Jensen, E Neuzil

A comparative study of the tyrosinase-tyrosine reaction, using both oxygen-consumption determination and spectrophotometric methods, shows that hydrazine derivatives inhibit melaninogenesis at different steps.

用耗氧量测定法和分光光度法对酪氨酸酶-酪氨酸反应进行了比较研究,结果表明肼衍生物在不同阶段抑制黑色素生成。
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引用次数: 0
[Direct electric measurement of the functioning of adenosine triphosphatase of submitochondrial particles of beef heart]. [牛心脏亚线粒体颗粒腺苷三磷酸酶功能的直接电测量]。
C Pfister, R Pougeois

A direct potential measurement of the activity of bound ATPase has been achieved with beef heart submitochondrial particles adhering to a thick phospholipidic membrane. Electric signals (90 mV amplitude) were found to be fully sensitive to ATPase inhibitors and uncouplers.

结合atp酶活性的直接电位测量已经实现了牛肉心脏亚线粒体颗粒粘附厚磷脂膜。电信号(90 mV振幅)对atp酶抑制剂和解偶联剂完全敏感。
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引用次数: 0
[Attempt at activating mouse intracisternal type A particles by iododeoxyuridine and dexamethasone]. [尝试用碘脱氧尿苷和地塞米松激活小鼠内胆A型颗粒]。
J Lasneret, M Canivet, P Bittoun, L Dianoux, J Périès

In this study we have compared the effects of Iododeoxyridine (IUdR) and dexamethasone on different Mouse cell lines to determine any differences in their actions on intracisternal A-type particles (IAP). Among the nine cell lines studied only four responded to IUdR stimulation by a subsequent augmentation of IAP. No similar activating effect was detected with dexamethasome treatment.

在这项研究中,我们比较了碘脱氧吡啶(IUdR)和地塞米松对不同小鼠细胞系的影响,以确定它们对内源性a型颗粒(IAP)的作用是否存在差异。在所研究的9个细胞系中,只有4个细胞系通过随后增加IAP对IUdR刺激有反应。地塞米松治疗组未发现类似的激活作用。
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引用次数: 0
[Plasma estradiol levels in quail during sexual development and after different estrogenic treatments]. [不同雌激素治疗后鹌鹑性发育过程中的血浆雌二醇水平]。
C Laugier, B Clastrat, E Brard

The comparison between estradiol levels in peripheral plasma of developing quails and of estradiol benzoate treated quails (0.01, 0.02, 0.1 and 1 mg/daily/6 days) shows that only the dose of 0.01 mg reproduces the conditions of a physiological estrogen stimulation.

短句来源对发育中鹌鹑外周血雌二醇水平与苯甲酸雌二醇处理(0.01、0.02、0.1和1 mg/d /6 d)鹌鹑外周血雌二醇水平的比较表明,只有0.01 mg的剂量才能再现生理性雌激素刺激的条件。
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引用次数: 0
[Speed of in vitro reassociation of gonadotropin subunits in a teleost fish, the carp (Cyprinus carpio L.)]. [在硬骨鱼类鲤鱼(Cyprinus carpio L.)体内促性腺激素亚基体外再结合的速度]。
J Marchelidon, E Fontaine-Bertrand, R Salesse, J Garnier, E Burzawa-Gérard, Y A Fontaine

Purified gonadotropin subunits of a teleost Fish, the Carp, reassociated in vitro, according to a second order rate reaction. The rate constant was temperature dependent. Compared to ovine LH, the Q10 was about three times less and the rate constant much greater (160 times for instance at 20 degrees C). The possible physiological significance of these differences is underlined.

纯化的硬骨鱼的促性腺激素亚单位,鲤鱼,在体外重新结合,根据二级速率反应。速率常数与温度有关。与羊的LH相比,辅酶Q10大约少了三倍,而速率常数要大得多(例如在20℃时为160倍)。这些差异可能的生理意义被强调。
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引用次数: 0
[Effect of phthalic esters on lecithin cholesterol acyltransferase]. 邻苯二甲酸酯对卵磷脂胆固醇酰基转移酶的影响。
M Lagente, F de La Farge, P Valdiguié

The in vitro effects of different esters of phthalic acid at increasing levels on the activity of LCAT have been studied using three currently known methods (Mickel and Foulds, Stokke and Norum, Alcindor). Inhibition from phthalates is high. It is proportional to the amounts used and in inverse ratio to the length of the carbon chains.

使用目前已知的三种方法(Mickel和Foulds, Stokke和Norum, Alcindor)研究了不同水平的邻苯二甲酸酯对LCAT活性的体外影响。邻苯二甲酸盐的抑制作用很高。它与用量成正比,与碳链的长度成反比。
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引用次数: 0
[Presence of indoleamines in the pineal and parapineal organs of Lampetra planeri (Petromyzontidae)]. [在扁鳗科的松果体和顶旁器官中吲哚胺的存在]。
A Meiniel

Using the Falck and Hillarp technique, the precursors of melatonin (5-HT and may be 5-HTP) have been identified in the pineal and parapineal organs of Lampetra planeri (Petromyzontidae). A particular kind of cell, the so-called "cells with residual bodies" (Collin, 1968), is responsible for this neurohormonal activity of the two organs.

利用Falck和Hillarp技术,在扁桃科(Petromyzontidae)扁桃科(Lampetra planeri)的松果体和顶旁器官中鉴定出褪黑素(5-HT,也可能是5-HTP)的前体。一种特殊的细胞,即所谓的“残体细胞”(Collin, 1968),负责这两个器官的神经激素活动。
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引用次数: 0
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Comptes rendus hebdomadaires des seances de l'Academie des sciences. Serie D: Sciences naturelles
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