As observed herein, the lack of vitamin D3 catabolic enzyme in the porcine myometrium is inconsistent with currently available results for the human myometrium, showing a low level of CYP24A1 mRNA transcript abundance in normal myometrium and its overexpression in uterine leiomyoma [8]. This evidence concerns the gene CYP24A1 and uterine corpus leiomyoma.