1,494 Result(s)
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Article
Acute leukemic infiltration of the small bowel diagnosed by suction biopsy
A case of acute lymphoblastic leukemia presenting with abdominal symptoms is reported. Diffuse leukemic infiltration of the small bowel was suggested by the small-bowel X-rays and confirmed through jejunal bio...
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Interrelation of ileal wall compliance and vascular resistance
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Intestinal compliance
A method for measuring intestinal compliance is reported in this paper. The method is simple and, with care, may be used in man. From changes in compliance the contractile state (tension or tonus) of the intes...
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Local factors involved in the development of experimental hemorrhagic enteropathy
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Complementation between exr and uvrA strains of Escherichia coli
When Pl phages grown on strain Bs12 (HCR) were used to infect exr strains Bs2, 4 and 7, and the reverse, a significant increase in survivors of ultraviolet radiation was observed over those found in selfing exper...
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A direct progesterone radioimmunoassay
Exposé d'une méthode de radioimmunoassai du progestérone dans le plasma sans purification chromatographique. Le 11-hémisuccinate de la progestérone a été joint au sérum bovin de l'albumine et injecté aux lapin...
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Phenobarbital specific antisera and radioimmunoassay
On a développé un anticorps d'une grande affinité et spécifité envers le phénobarbital en inoculant des lapins avec une solution de barbiturateprotéide, synthétisée d'acide barbiturique de 5-phényl-5-(4-aminob...
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Mutagenecity in the mal regions ofEscherichia coli
L'efficacité de la nitrosoguanidine (MNG) dans différents milieux de culture et tampons a été étudiée. Les résultats obtenus montrent qu'avec le temps, la fraction de cellules survivant au traitement diminue p...
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A direct plasma testosterone radioimmunoassay
On a développé und méthode simple pour déteminer sans chromatographie en colonne le testostérone du plasma. La purification a été faite par préextraction avec l'hexane. Un antisérum contre le testostérone a ét...
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A radioimmunoassay for deoxycorticosterone in human peripheral plasma using sephadex LH-20 chromatography
Se reporta un nuevo método para medir desoxicorticosterona en plasma, usando cromatografía de columna LH-20 y radioinmunoensayo. Las cantidades de plasma necesarios para dicho ensayo son mínimas (2 ml) compara...
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Article
Plastid differentiation on 6-azauracil media
Les mutants au locusm de l'Arabidopsis ne réussissent pas à former de chloroplastes normaux dans certaines conditions et montrent des activités plus hautes en synthèse de pyrimidines que le témoin. La nutrition a...
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An anomaly of the genetic regulation of the de novo pyrimidine pathway in the plant Arabidopsis
Humans afflicted by hereditary orotic aciduria are characterized by insufficiencies in the de novo pyrimidine pathway. Mutants at a nuclear gene locus in Arabidopsis, in contrast, exhibit increased activities of ...
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Phytotoxic substances in twelve subtropical grasses
Aqueous extracts of 12 subtropical grasses inhibited seed germination and radicle growth ofLactuca sativa var. Great Lakes at osmotic concentrations as low as 10 milliosmol.Acroceras macrum,Chloris gayana, Digita...
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Rapid test for assay of ozone sensitivity in Escherichia coli
A rapid test devised for assay of ozone sensitivity in Escherichia coli is described. The detection of new mutants, either more resistant or more sensitive than wild type strain to ozone, and the genetic analysis...
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Article
Bile acid stimulation of colonic adenylate cyclase and secretion in the rabbit
In vitro studies have suggested that the cyclic AMP system may be the mediator of bile acid-induced colonic secretion. The aims of our experiments were to quantify thein vivo effect of various doses of deoxychol...
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Regulation of internodal lenght by peroxidase enzymes in grain sorghum
A relationship between height genes (dw locus) and perioxidase was demonstrated by extracting and determining peroxidase specific activity in internode tissue from different height isogenic lines of sorghum Sorgh...
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Effect of sodium taurocholate and ethanol on hydrogen ion absorption in rabbit esophagus
The effect of sodium taurocholate (NaTC) (5 mM) and ethanol (5%) on H+ absorption by the esophagus was studied duringin vivo perfusion of rabbit esophagus with solutions of graded concentration of H+ containing e...
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Feasibility of low-dose and intermittent chenodeoxycholic acid therapy of gallstones
Chenodeoxycholic acid, by reducing the concentration of biliary cholesterol relative to that of bile acid and phospholipid, dissolves cholesterol gallstones. This bile acid, however, has potential dose-related...
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Gallstone prevalence and biliary lipid composition in inflammatory bowel disease
Biliary cholesterol saturation has been correlated with disease variables that might effect bile acid loss in ileitis patients with (N=9) or without (N=8) intestinal resection having a defined prevalence of galls...
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Damage by ozone to the mechanical integrity of the protoplast plasmalemma
Ozone acts on the plasmalemma as to weaken its mechanical properties. This results in the bursting of protoplasts.
