BDNF and Myocardial fibrosis: Following bladder nerve damage, SCs play a crucial role in the reconstruction of neural myelin sheaths and axonal regeneration.[10] Brain‐derived neurotrophic factor (BDNF), they reduce the expression of Type I collagen (COL1), thereby inhibiting the occurrence of neurofibrosis.[11] In addition, the BDNF analog 7,8‐Dihydroxyflavone has also been shown to alleviate myocardial fibrosis.