Intestinal parasites

Intestinal parasites are a big cause of morbidity and mortality worldwide. They don’t just occur in underprivileged parts of the world though – there are several that are pretty common here in the US. (more…)

Wilson disease

Wilson disease is an autosomal recessive disorder in which patients accumulate a ton of copper. Let’s take a look at copper metabolism and then look into the disease in a little more detail. (more…)

Why does acid secretion go up in duodenal ulcers but down in gastric ulcers?

Q. I would be highly obliged if you can help me out on one thing. Being an average student, I refer to a textbook by a local author. He writes, “in gastric ulcer the value of basal acid output (BAO) and maximal acid output (MAO) are usually normal or slightly below normal” and “higher values are found in duodenal ulcer.” I am confused on both statements. Shouldn’t the level be higher in gastric ulcers? And if it’s low in gastric ulcer why is it higher in duodenal ulcer? (more…)