“…Association studies revealed that the various SNPs within MMP2 , MMP9 and TIMP2 pre‐disposed to different disease states, for example bladder cancer susceptibility (Yan et al., ), prostate cancer (dos Reis et al., ), breast cancer development and survival (Slattery et al., ), digestive cancers (Li et al., ; Park, Kim, Kim, & Kim, ), head and neck cancer (Zhang et al., ), lung cancer (Wang & Cai, ), gallbladder cancer (Sharma, Misra, Kumar, & Mittal, ), retinal vein occlusion (Ortak et al., ) or chronic obstructive pulmonary disease risk (Mocchegiani, Giacconi, & Costarelli, ; Tesfaigzi et al., ). However, there is no information available on the associations between MMP2 , MMP9 and TIMP2 and male infertility.…”