title: [The influence of geomagnetic variations on the formation of nitric oxide in exhaled air in human].
abstract: The content of nitric oxide in exhaled air in healthy persons has been studied. It was shown that nitric oxide in exhaled air is formed from saliva nitrite due to the nitrite reductase activity of mouth cavity microflora. A relationship between the nitric oxide level and age, arterial pressure, and geomagnetic field indices was established. It was shown that the level of nitric oxide diminishes with age. A negative correlation between the nitric oxide content in exhaled air and arterial pressure (systolic and diastolic) was found. It was assumed that nitric oxide from the mouth can penetrate into the lungs and then to the blood where it can influence the vessel tonus. It was shown that the negative relationship took place between nitric oxide level in the air and Ki-indices of geomagnetic field on the day of measurement or the day preceding the measurement. The data obtained suggest that nitric oxide is involved in processes causing infarcts and insults in periods of magnetic storms.
authors: V A
authors: VA
authors: Iamshanov
authors: V K
authors: VK
authors: Koshelevskiĭ
mesh_terms: D000375:Aging / Q000378:metabolism*; D001794:Blood Pressure; D006801:Humans; D008280:Magnetics; D009203:Myocardial Infarction / Q000201:enzymology / Q000209:etiology; D009569:Nitric Oxide / Q000032:analysis / Q000378:metabolism*; D009572:Nitrite Reductases / Q000378:metabolism*; D009573:Nitrites / Q000378:metabolism; D011659:Pulmonary Gas Exchange; D012463:Saliva / Q000201:enzymology* / Q000382:microbiology; D020521:Stroke / Q000201:enzymology / Q000209:etiology
chemical_list: D009573:Nitrites; D009569:Nitric Oxide; D009572:Nitrite Reductases