Two polymorphisms in the Cx40 promoter are associated with hypertension and left ventricular hypertrophy preferentially in men.

Schmidt K, Kaiser FJ, Erdmann J, Wit Cd.

Clin Exp Hypertens. 2015;37(7):580-6. doi: 10.3109/10641963.2015.1026043. Epub 2015 May 20.

http://www.ncbi.nlm.nih.gov/pubmed/25992486