For years, we have often attributed the relative risk of developing diabetes to the heredity component. If your parents or grandparents had diabetes, there was a greater chance you would as well. Oftentimes patients use this as an excuse for *having* diabetes. Now that we have reasonably priced genetic testing that can identify certain hereditary disease anomalies, it would seem that we should be able to get a definitive answer.
Unfortunately, it is just not that easy. This week in our Clinical Text, the authors look into the “missing heritability” of diabetes and why the current tests only account for about 15% of the possible variants. Interesting comments are shared that likely will lead to the development of better testing methods and more definitive answers.