Matrix metalloproteinase-9 activity in the plasma of patients after surgical resection of endometriomas.

Matrix metalloproteinases (MMPs) may have a role in the pathogenesis of endometrioma. The level of MMP was lower compared to the level taken after resection of endometrioma.

Comparisons of matrix metalloproteinase 1, 2, and 9 activity in periovulatory follicular fluid from natural and stimulated menstrual cycles.

We studied the activity levels of matrix metalloproteinase 1, 2, and 9 in periovulatory fluids from naturally occurring menstrual cycles versus those from samples taken from menstrual cycles stimulated with clomiphene citrate or recombinant stimulating hormone. No statistically significant differences were found.