Nitrate-Induced Headache May Have Confounding Factors

Nitrate-Induced Headache May Have Confounding Factors

Relationship between Nitrate-Induced Headache and Coronary Artery Lesion Complexity

OBJECTIVE The aim of the present study was to investigate the association between nitrate-induced headache (NIH) and the complexity of coronary artery lesions in patients with stable coronary artery disease (CAD). SUBJECTS AND METHODS Two hundred and seventy-five patients with anginal chest pain who underwent coronary angiography were enrolled in the present study. NIH was defined as the pres...

Dietary nitrate may have a role in development of gastro-esophageal reflux disease.

BACKGROUND Gastro-esophageal reflux disease (GERD) has become very common in the past three decades. The reason for this, as well as its exact pathophysiologic mechanisms are yet unknown. In this ecologic study we assessed the relation between water nitrate content and prevalence of GERD in Tehran, Iran. METHODS We determined the prevalence of acid regurgitation, heartburn or any of them occu...

Salivary nitrate and nitrite may have antimicrobial effects on Desulfovibrio species.

The antibacterial effects of salivary nitrate/nitrite on the growth of three Desulfovibrio species were examined. The bacteria did not grow on plates with ≥ 0.2 mM nitrate or ≥ 1.0 mM nitrite. They were also incubated in filter-sterilized saliva. D. desulfuricans was reduced on the order of >10(2) compared with the control solution (phosphate-buffered saline) in nine out of the 10 participants.

Confounding Factors for Hamilton’s Rule