Amylase is an enzyme that is normally present only in very low levels in the blood. Amylase, along with other enzymes, is produced by the pancreas to digest carbohydrates. It is released into the duodenum (the first part of the small intestines) in the digestive tract where it assists in food breakdown. Amylase is also produced by other organs in the body, particularly, the salivary glands.
Helicobacter pylori (H. pylori) is a type of bacteria. These germs can enter your body and live in your digestive tract. After many years, they can cause sores, called ulcers, in the lining of your stomach or the upper part of your small intestine. For some people, an infection can lead to stomach cancer.
Helicobacter pylori â sometimes called H. pylori or HP is a bacterium that causes ulcers. H. pylori is also a risk factor for stomach cancer. If prescribed, it is very important to complete an entire course of antibiotics for H. pylori. Melena â black very sticky stool, often compared to roof tar. This is a common symptom of a bleeding ulcer. Black stool that looks like melena can be caused by taking iron medications and by drugs like Pepto-Bismol Â® .