Abstract
Introduction:Previous research found that diabetes mellitus capable to aggravate osteoarthritis disease. In brief, the hyperglycemia condition in diabetes mellitus has an impact on protein glycation of all joint components, including molecule, such as perlecan. The protein expression of perlecan reflects the presence amount of perlecan in the matrix of articular cartilage. However, the impact of hyperglycemia on articular perlecan has not been explained. Moreover, the role of perlecan as a mechanotransducer for chondrocytes in type 1 Diabetes mellitus remains unclear.Aim:This research aims to analyze the effect of hyperglycemia in type 1 Diabetes mellitus to the mRNA level and protein expression of perlecan.Methods:Thirty-five adult male rats were divided into seven groups, such as three groups of rat model with anterior cruciate ligament transection (ACLT) at right knee (ACLT1, ACLT2, ACLT3); three groups of rats with ACLT at right knee which followed by Streptozotocin injection for diabetic mice model (DM1, DM2, DM3); and control group (N). Rat sacrificed at the third week, fourth week, and sixth week after two months of maintenance. The mRNA level and protein expression were analyzed by using PCR and Western blot. All of data was analyzed by ANOVA.Results:Protein expression of perlecan in ACLT mice with diabetes mellitus (DM1, DM2, DM3 group) was gradually decreased according to the increased hyperglycemia duration. Whilst, protein expression of perlecan within ACLT mice without diabetes mellitus (ACLT1, ACLT2, ACLT3 group) was increased. The similar result also demonstrated by the mRNA level of perlecan. Group of DM1, DM2, DM3 exhibited decreased mRNA level of perlecan over the hyperglycemia duration. While, ACLT1, ACLT2, and ACLT3 group had a gradually increased of perlecan mRNA level.Conclusion:Hyperglycemia on osteoarthritic condition decreased mRNA level and protein expression of perlecan which increased the severity of osteoarthritis disease.
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