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Air-water and ether-water distribution of N-nitroso compounds: implications for laboratory safety, analytic methodology, and carcinogenicity for the rat esophagus, nose, and liver.
The air-water distribution ratio K1, ether-water distribution ratio K2, and solubility in water were measured for 17 nitrosamines, 3 nitrosamides, and 1 nitrosocyanamide. For K1, air was analysedExpand
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The Clearance of Mannitol and Erythritol In Rat Bile.∗
Summary In the rat, as in the guinea pig, dehydrocholate choleresis leads to increased excretion of mannitol and erythritol, but in the rat the amounts of the solutes appearing in bile are greater.Expand
  • 52
Free amino acids of normal and abnormal human placenta.
  • W. Pearse, H. Sornson
  • Biology, Medicine
  • American journal of obstetrics and gynecology
  • 1 November 1969
Abstract The free amino acid content of human placenta has not previously been reported, although such levels are known for many normal and malignant tissues. Free amino acids in the placentaExpand
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Glycine Inhibition of Asparaginase
Administration of either Escherichia coli asparaginase or guinea pig serum to C3H/HE mice with the 6C3HED lymphosarcoma is followed by depression of glycine in the tumor. This decrease in cellularExpand
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Enhancement of asparaginase-induced regression of the 6C3HED lymphosarcoma by protein-free diet.
A protein-free and normal protein test diet were fed to female C3H/He mice. The protein-free test diet lowered the level of asparagine in the serum of the mice and in the 6C3HED tumor. The effect ofExpand
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Lack of carcinogenicity of agaritine by subcutaneous administration in mice
Agaritine (A), an ingredient of the cultivated mushroom of commerce Agaricus bisporus, was administered by subcutaneous injection to two groups of randomly bred Swiss mice. In the first group theExpand
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Sex dependent toxicity of four chemicals.
Toxicity investigations were conducted with 4 chemicals: hydrazine, 1,2-dimethylhydrazine di HCl, phenylhydrazine HCl and Beta-N-(gamma-L(+)-glutamyl)-4-hydroxymethylphenylhydrazine in Swiss mice.Expand
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A monitoring method for volatile nitrosamine levels in laboratory atmospheres.
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Platelet adsorption-source of error in reference controls.
Preparation of platelet reference controls requires that the platelet membranes be strengthened by chemical cross-linking, usually with glutaraldehyde. The reaction produces a platelet which isExpand