Immunohistochemical characteristics of MMP-9 and TIMP-1 markers expression in the cerebral cortex in diabetes mellitus type 2
Aim – to study the features of immunohistochemical expression of MMP-9, TIMP-1, MMP/TIMP ratio in the cerebral cortex in diabetes mellitus type 2. Materials and methods. A pathomorphological and immunohistochemical study of the section material of brain tissue conducted in 3 groups of observation...
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Zaporozhye State Medical University
2020-08-01
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doaj-10ff16692b9842bebe1bcb873c066a132020-11-25T03:57:05ZengZaporozhye State Medical UniversityZaporožskij Medicinskij Žurnal2306-41452310-12102020-08-0122446847210.14739/2310-1210.2020.4.208355://doi.org/10.14739/2310-1210.2020.4.208355Immunohistochemical characteristics of MMP-9 and TIMP-1 markers expression in the cerebral cortex in diabetes mellitus type 2V. O. Shavrin Yu. M. AvramenkoAim – to study the features of immunohistochemical expression of MMP-9, TIMP-1, MMP/TIMP ratio in the cerebral cortex in diabetes mellitus type 2. Materials and methods. A pathomorphological and immunohistochemical study of the section material of brain tissue conducted in 3 groups of observations: group I – control without diabetes and cerebrovascular pathology, group II – deceased patients with dyscirculatory-ischemic encephalopathy (DIE), group III – deceased patients with diabetes mellitus type 2 (DM). Results. Increased expression of MMP-9 in DIE group and in deceased patients with DM type 2 (MMP-9 in the control group – 0.434 (0.399; 0.792) %, in DIE group – 0.652 (0.398; 1.103) %, in DM type 2 group – 0.829 (0.636; 1.034) % has been found. A significant decrease in TIMP-1 expression was detected in DM type 2 (TIMP-1 – in the control group 0.449 (0.254; 0.601) %, in group of DIE – 0.444 (0.306; 0.688) %, in DM type 2 group – 0.278 (0.196; 0.554) %. A statistically significant increase in the MMP/TIMP ratio (Р ˂ 0.05) was observed in DM, the median was 2.732 (1.665; 4.643); this indicator was 1.386 (0.618; 2.29) in the control group and 1.528 (0.619; 3.056) (Р ˃ 0.05) in DIE group. Conclusions. An increase in the level of MMP-9 expression and a decrease in the expression level of TIMP-1 in the cerebral cortex in diabetes mellitus type 2 promote increased blood-brain barrier permeability and is an important link in the pathogenesis of diabetic microangiopathy. http://zmj.zsmu.edu.ua/article/view/208355/211683diabetes mellitusangiogenesismmp-9timp-1mmp-9/timp-1 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
V. O. Shavrin Yu. M. Avramenko |
spellingShingle |
V. O. Shavrin Yu. M. Avramenko Immunohistochemical characteristics of MMP-9 and TIMP-1 markers expression in the cerebral cortex in diabetes mellitus type 2 Zaporožskij Medicinskij Žurnal diabetes mellitus angiogenesis mmp-9 timp-1 mmp-9/timp-1 |
author_facet |
V. O. Shavrin Yu. M. Avramenko |
author_sort |
V. O. Shavrin |
title |
Immunohistochemical characteristics of MMP-9 and TIMP-1 markers expression in the cerebral cortex in diabetes mellitus type 2 |
title_short |
Immunohistochemical characteristics of MMP-9 and TIMP-1 markers expression in the cerebral cortex in diabetes mellitus type 2 |
title_full |
Immunohistochemical characteristics of MMP-9 and TIMP-1 markers expression in the cerebral cortex in diabetes mellitus type 2 |
title_fullStr |
Immunohistochemical characteristics of MMP-9 and TIMP-1 markers expression in the cerebral cortex in diabetes mellitus type 2 |
title_full_unstemmed |
Immunohistochemical characteristics of MMP-9 and TIMP-1 markers expression in the cerebral cortex in diabetes mellitus type 2 |
title_sort |
immunohistochemical characteristics of mmp-9 and timp-1 markers expression in the cerebral cortex in diabetes mellitus type 2 |
publisher |
Zaporozhye State Medical University |
series |
Zaporožskij Medicinskij Žurnal |
issn |
2306-4145 2310-1210 |
publishDate |
2020-08-01 |
description |
Aim – to study the features of immunohistochemical expression of MMP-9, TIMP-1, MMP/TIMP ratio in the cerebral cortex in diabetes mellitus type 2.
Materials and methods. A pathomorphological and immunohistochemical study of the section material of brain tissue conducted in 3 groups of observations: group I – control without diabetes and cerebrovascular pathology, group II – deceased patients with dyscirculatory-ischemic encephalopathy (DIE), group III – deceased patients with diabetes mellitus type 2 (DM).
Results. Increased expression of MMP-9 in DIE group and in deceased patients with DM type 2 (MMP-9 in the control group – 0.434 (0.399; 0.792) %, in DIE group – 0.652 (0.398; 1.103) %, in DM type 2 group – 0.829 (0.636; 1.034) % has been found. A significant decrease in TIMP-1 expression was detected in DM type 2 (TIMP-1 – in the control group 0.449 (0.254; 0.601) %, in group of DIE – 0.444 (0.306; 0.688) %, in DM type 2 group – 0.278 (0.196; 0.554) %. A statistically significant increase in the MMP/TIMP ratio (Р ˂ 0.05) was observed in DM, the median was 2.732 (1.665; 4.643); this indicator was 1.386 (0.618; 2.29) in the control group and 1.528 (0.619; 3.056) (Р ˃ 0.05) in DIE group.
Conclusions. An increase in the level of MMP-9 expression and a decrease in the expression level of TIMP-1 in the cerebral cortex in diabetes mellitus type 2 promote increased blood-brain barrier permeability and is an important link in the pathogenesis of diabetic microangiopathy.
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topic |
diabetes mellitus angiogenesis mmp-9 timp-1 mmp-9/timp-1 |
url |
http://zmj.zsmu.edu.ua/article/view/208355/211683 |
work_keys_str_mv |
AT voshavrin immunohistochemicalcharacteristicsofmmp9andtimp1markersexpressioninthecerebralcortexindiabetesmellitustype2 AT yumavramenko immunohistochemicalcharacteristicsofmmp9andtimp1markersexpressioninthecerebralcortexindiabetesmellitustype2 |
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