Coronary Artery Vasospasm After Mechanical Aortic Valve Replacement: A Case Report.

Coronary artery vasospasm is a rare but fatal postoperative complication of cardiothoracic surgery. This phenomenon can occur directly after surgery or several hours postoperatively. Most reported cases have occurred after CABG surgery and less commonly after valve replacement.

Regulation of cellular communication network factor 1 by Ras homolog family member A in bovine steroidogenic luteal cells.

Development of the corpus luteum (CL) requires the growth of a new capillary network from preexisting vasculature, a process known as angiogenesis. Successful building of this capillary network occurs through a sequence of cellular events-differentiation, proliferation, migration, and adhesion-which are regulated by a suite of angiogenic proteins that includes cellular communication network factor 1 (CCN1). We previously reported that the expression of CCN1 was highest in luteal tissue obtained from the early-cycle, 4-d-old bovine CL (i.