Word Origin and History for mesopotamian. ancient name for the land that lies between the Tigris and Euphrates rivers (in modern Iraq), from Greek mesopotamia (khora), literally a country between two rivers, from fem. of mesopotamos, from mesos middle (see medial (adj.)) + potamos river (see potamo-).
Monogenic forms, caused by a single mutation in a dominantly or recessively inherited gene, are well-established, albeit relatively rare types of PD. They collectively account for about 30% of the familial and 3%â5% of the sporadic cases.
Genetic mutations. 1  Monogenic diabetes is caused by mutations, or changes, in a single gene. 2  Cystic fibrosis produces thick mucus that causes scarring in the pancreas. 3  Hemochromatosis causes the body to store too much iron.