Parallelism and non-parallelism in diabetic nephropathy and diabetic retinopathy.

"Conflict of interest The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest."

"The author(s) declare financial support was received for the research, authorship, and/or publication of this article. This study was supported by the National Multidisciplinary Interdisciplinary Innovation Team Project of Traditional Chinese Medicine (ZYYCXTD-D-202001), the Science and Technology Innovation Project of the China Academy of Traditional Chinese Medicine (C12021A02610), the National Natural Science Foundation of China under the Young Science Foundation Project (82305205), and the Clinical Research Center Construction Project of the Guang’anmen Hospital of the China Academy of Traditional Chinese Medicine (Approval No. 2022LYJSZX01~2022LYJSZX29)."