2005), and reduction of nitrates and nitrites
by cultures similar to strain SG-01 was observed in the present study.
Development of estimates of dietary nitrates, nitrites
, and nitrosamines for use with the Short Willett Food Frequency Questionnaire.
Along with antioxidants and other substances, the nitrates and nitrites
found naturally in unprocessed fruits and vegetables form nitric oxide (NO).
In spite of the weak epidemiological evidence linking nitrites
to cancer and the fact that 95 per cent of all the nitrite
we ingest comes from bacterial conversion of nitrates naturally found in vegetables, many consumers have a lingering concern about eating nitrite
-cured processed meats.
The higher levels of nitrate and nitrites
from the market area seen in this study are an indication of the environmental burden of nitrate from the decaying matter and refuse dumps, which is a common feature of most cities in developing nations like Nigeria (Chukwuma, 1994).
Because nitrosamines produce biochemical changes within cells and tissues, it is conceivable that chronic exposure to low levels of nitrites
and nitrosamines through processed foods, water, and fertilizers is responsible for the current epidemics of these diseases and the associated increasing mortality rates.
Most (83%) nitrite
users reported they had gotten high while using nitrites
, but only one in six (17%) nitrite
users had used nitrites
on five or more days.
-oxidizing microbes convert nitrite
back into nitrate, and they are the only natural source of nitrate to the oceans.
They suggest that carcinogens caused by cooking red meat at high temperatures or the nitrites
in processed meats may explain the link.
By producing nitrates and nitrites
directly, the vetch contributes usable nitrogen in a new way.
Users of amphetamines ("crystal"), hallucinogens, or inhaled nitrites
("poppers") had higher rates of HIV infection than non-users, (1) in an analysis of the Vaxgen trial data presented at the 11th Conference on Retroviruses and Opportunistic Infections, February 8-11, 2004.
As an aphrodisiac, alkyl nitrites
are particularly popular among the homosexual community.