Nitrogen biological effects

Asphyxiant Simple asphyxiants are inert gases which deplete the oxygen supply in the breathing air to below the critical value of J8% by volume, such as gaseous fuels or nitrogen. Chemical asphyxiants, such as carbon monoxide and hydrogen cyanide, have a direct biological effect. 

The non-metals carbon, nitrogen and oxygen are all essential for man, as is element number 9, fluorine. Some of the biological effects of the important intracellular messenger, nitric oxide, NO, which is derived from the amino acid arginine, are illustrated in... 

AltshuUer. A. P.. D. L. Klosterman, P. W. Leach. I. J. Hindawi, and J. E. Sigsby. Jr. Products and biological effects from irradiation of nitrogen oxides with hydrocarbons or aldehydes under dynamic conditions. Int. J. Air Water Pollut. 10 81-96, 1966. 

National Research Council. Committee on Medical and Biologic Effects of Environmental Pollutants. Nitrogen Oxides. Washington, D.C. National Academy of Sciences, (in press)... 

Like all plants. Cannabis sativa L. forms a huge number of chemicals. Many of these have been identified.None of them, except the cannabinoids are specific for this plant and none of these non-cannabinoids has been found to contribute to the cannabinoid effects. Ffowever, very few have been directly tested together with cannabinoids for any biological effects. Recently, ElSohly and Slade, published a comprehensive review. Up to date, 70 natural cannabinoid compounds were documented. Althogether, they record 419 constituents nitrogenous compounds (27), amino acids... 

W.C. Cooper, I.R. Tabershaw, Biologic effects of nitrogen dioxide in relation to air quality standards. Arch. Environ. Health. 10 455, 1965. 

Fumariflorine ethyl ester (1) has been isolated from Fumaria parviflora.1,2 It has been claimed that the product of the reaction between cotarnine and 6-nitropiperonal has the structure (2) rather than the previously accepted (3).3 The anodic oxidation of ephedrine in aqueous buffer, at pH 10, has been re-examined and found to proceed by fission of carbon-carbon rather than carbon-nitrogen bonds, giving benzaldehyde.4 The H n.m.r. spectra of ephedrine and /-ephedrine have been studied5 and quaternary salts of esters of these bases have been prepared.6 Methods for the detection and characterization of mescaline have been published,7,8 and the biological effects of the alkaloid9,10 and its clearance from rabbit lung and liver11 have been studied. 

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