Dr. James Knox Simpson M.D.

The structure of the esophagus:The esophagus is a muscular tube of about 25 cm in length. It is lined by the non-keratinized stratified squamous epithelium, which abruptly changes to gastric epithelium at the gastroesophageal junction. The stomach is a very acidic environment that has special types...

Affecting approximately 65% of all adults in the world, lactose intolerance is one of the most common food intolerance. To evade gastrointestinal complications that often result from consumption of milk products, the majority of individuals decide to remove all dairy products from their diet.The...

What is celiac disease?A gluten-free diet is a must for people with celiac disease, which is an autoimmune disorder that can get triggered by gluten. Gluten is a protein that is usually found in foods such as wheat, rye, and barley. When people with celiac disease ingest this protein, damage to the...

Research in several different medical fields—most notably including mental health and autoimmune disease—have begun to trace the roots of their problems back to an unlikely source. Mental health disorders like depression and anxiety, and autoimmune disorders like Crohn’s disease, have been...

Do restaurants falsely advertise “gluten-free” products on their menus? This study in Australia says that they do. Maybe not intentionally, but there are many products on menus that claim they are gluten-free, when they are really unsafe for those who have celiac disease. ...

OverviewLaparoscopy is a type of endoscopic procedure that will allow doctors to look inside your abdomen using a surgical telescope. The telescope is known as the laparoscope. The laparoscope is equipped with a front camera that transmits the images captured in high definition to a nearby video...