Compared with the non-diabetic group, the expression levels of genes involved in tissue repair (COL1A), tenogenesis (TNC, TNMD, SCX), osteogenesis (RUNX2), and chondrogenesis (SOX9) of the supraspinatus tendon of the rotator cuff showed an increasing trend after induction of type 2 diabetes, where the TNC mRNA expression levels of the supraspinatus tendon were significantly increased in the 2-week group after induction of type 2 diabetes (p < 0.05), and the COL1A1 mRNA expression levels of the supraspinatus tendon were significantly increased in the 4-week group after induction of type 2 diabetes (p < 0.001).
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Evaluating the role of type 2 diabetes mellitus in rotator cuff tendinopathy: Development and analysis of a novel rat model.
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The sentences
In the current study, gene expression analysis confirmed that COL1A1 and TNC in the supraspinatus tendon of the rotator cuff in type 2 diabetic rats continued to increase in the first four weeks, after which they showed a trend of continuously decreased expression, indicating that there is a continuous remodeling process in the supraspinatus tendon in response to persistent microdamage caused by hyperglycemic conditions.