Antibodies Against Epstein-Barr Virus as Disease Markers of Gastric Cancer: A Systematic Review.

Gastric cancer is the fourth deadliest cancer worldwide. Due to the lack of specific early symptoms and noninvasive methods for early detection, the prognosis of gastric cancer patients is poor. Gastric cancer has a well-recognized infectious etiology, with and Epstein-Barr Virus being the main associated infectious agents.

Urinary estrogen metabolites and gastric cancer risk among postmenopausal women.

Background: The overall incidence of gastric cancer in women is half that in men for most global populations. Sex hormone pathways may be involved in carcinogenesis and estrogens have been postulated to protect women against gastric cancer.

Aim: To evaluate associations of gastric cancer with estrogen metabolites in postmenopausal women.