Comparison of type I collagens and MMP-2 proteins in temporomandibular joint of young and old mice

• Autorzy: Demir M. , Tumer M.K. , Cicek M. , Uysal M. , Yoldas A. , Doganer A.
• Języki publikacji: EN

Abstrakty

EN

Background: The effects of ageing on the histopathological changes of temporomandibular joint (TMJ) and the existence and age related alterations of immunochemical expressions of type I collagen and matrix metalloproteinase-2 (MMP-2) proteins was aimed to be displayed. Materials and methods: In this study, 14 Balb/C type white mice (50–80 g) were included. Groups were organised as group 1 — 2-month-old young animals (n = 7) and group 2 — 18-month-old old animals (n = 7). Of the paraffin embedded tissues 4–5 µm thick sections were taken and immunohistochemical stainings of haematoxylin-eosin, type-1 collagen and MMP-2 were performed. Results: Collagen bundles showed sagittal and oblique localisations in the young mice, which were comprised of compact collagen bundle layers positioned alternately. While collagen bundle fragmentation was observed in the disks of old mice, some disk regions showed ruptures. In the old mice a decrease in blood vessels, structural impairments and dilatation in arterioles and venules were detected. In the TMJ tissues of the young mice type I collagen and MMP-2 expressions were increased, while they were decreased in old mice. In the MMP-2 H-score evaluation young mice showed significant increase compared to the old mice. Conclusions: Occurrence of degenerations in the collagen structure of TMJ and decimation in the matrix metalloproteases were observed with age. (Folia Morphol 2018; 77, 2: 329–334)

• Wydawca: -
• Czasopismo: Folia Morphologica
• Rocznik: 2018
• Tom: 77
• Numer: 2
• Opis fizyczny: p.329–334,fig.,ref.

Twórcy

autor

Demir M.

• Department of Anatomy, Faculty of Medicine, Kahramanmaras Sutcu Imam University, 46000 Kahramanmaras, Turkey

autor

Tumer M.K.

• Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Gaziosmanpasa University, Tokat, Turkey

autor

Cicek M.

• Department of Anatomy, Faculty of Medicine, Kahramanmaras Sutcu Imam University, 46000 Kahramanmaras, Turkey

autor

Uysal M.

• Department of Anatomy, Faculty of Medicine, Gaziosmanpasa University, Tokat, Turkey

autor

Yoldas A.

• Department of Anatomy, Faculty of Medicine, Kahramanmaras Sutcu Imam University, 46000 Kahramanmaras, Turkey

autor

Doganer A.

• Department of Biostatistics, Faculty of Medicine, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey

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Identyfikatory

DOI

10.5603/FM.a2017.0096