The human stomach is a formidable barrier to orally ingested microorganisms and was long
thought to be sterile. The discovery of Helicobacter pylori, a carcinogenic bacterial pathogen …

BACKGROUND:: Gastric bypass remains the mainstay of surgical therapy for obesity.
Abdominal pain after gastric bypass is common and accounts for up to half of all …

Gastric cancer (GC) is the leading cause of cancer-related death worldwide, and reducing its
mortality has become an urgent public health issue. Gastric microecological dysbiosis …

Background Bariatric surgery is known as one of the most effective treatments for
sustainable weight loss; however, it may be associated with some complications. This study …

Background Bariatric surgery before pregnancy may help prevent obesity-related
gestational complications. However, maternal malnutrition is not without potential risks …

Background Maternal metabolic profile and nutritional course of pregnancy after bariatric
interventions is incompletely known. Their impact on birth weight has also not been hitherto …

Abstract Background Mucosal alterations after Roux-en-Y gastric bypass for morbid obesity
have not been clearly evaluated. This study aims to analyze the mucosal alterations …

THIS ISSUE OF THE ARCHIVES INCLUDES A CON-stellation of articles describing various
as-pects of bariatric surgery. Just several years ago, very few manuscripts of this type were …

BACKGROUND: Pregnancy is usually contraindicated in the first 18 months after anti-
obesity operations because of nutritional risk, but childbearing happens nonetheless, both …

Background Roux-en-Y gastric bypass (RYGB) causes several alterations in gastrointestinal
function. We hypothesized that levels of three commonly used fecal tests change after …