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Dietary Nitrate and Nitrite Levels in an Endemic Upper Gastrointestinal (Esophageal and Gastric) Cancer Region of Turkey

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Date

2003

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Volume Title

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Abstract

Background/aims: The aim of this study was investigate nitrate and nitrite levels in some traditional foods and drinking water in Van, an endemic upper gastrointestinal (esophageal and gastric) cancer region of Eastern Turkey. Methods: Cheese with added herbs, drinking; water, bread baked by wood fire and bread baked by burning animal manure specimens collected in the Van region were analyzed by Stahr's modification method. Nitrite was reduced to nitrate by the following three reagents: hydrazine sulphate ((NH2) 2SO4), CuSO4 and NaOH. Nitrate was then determined by coupling reagent containing sulphanlyamide, phosphoric acid and N-1-naphtyl ethylendiamine dihydrochloride. Results: Nitrate and nitrite levels of all traditional foods and nitrite levels of drinking water were very significantly elevated compared to standard values (p<0.001-0.01). Conclusions: These findings suggest that the influence of a traditional diet rich in nitrate and nitrite is significant in the development of endemic upper gastrointestinal (esophageal and gastric) cancers in the Van region of Turkey.

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Keywords

Eastern Turkey, Esophageal And Gastric Cancer, Nitrate, Nitrite

Turkish CoHE Thesis Center URL

WoS Q

Q4

Scopus Q

Q3

Source

Turkish Journal of Gastroenterology

Volume

14

Issue

1

Start Page

50

End Page

53