I found an interesting online article from the Wall Street Journal here. The article goes into detail about a team of researchers in Boston that are analyzing the genetic makeup and relationships among various diseases and proteins in humans. Diseases with symptoms appearing to be unrelated may in fact be intimately tied together in their genetic structure. An example would be that while Crohn’s Disease and Type-2 Diabetes do not appear to have much in common, at the cellular level they in fact do share similarities in the genetic code of people who suffer from the diseases.
The research centers around mapping clusters of diseases, at the center of clusters may be diseases that share many common structures in genes and the proteins they produce that interact with cells causing diseases. Colon Cancer shares at least one of 34 genes with 50 other diseases. Colon Cancer would be at the center of a cluster surrounded by the 50 diseases it is related to. Scientists may end up discovering that treatments or cures that occur in one disease may work on others.
There are also implications for patients with one sort of disease being at risk for developing other closely related diseases. For example, a patient with Ischemic Heart disease is 60% more likely to develop Type-2 Diabetes than the average healthy person. Also, what conclusions may be drawn about patients and their relatives. My mother suffers from Type-2 diabetes while I suffer from Crohn’s Disease. Was I more likely than not to have Crohn’s Disease given the fact my mother developed Type-2 Diabetes?