5.2 REDUCED SUBLINGUAL ENDOTHELIAL GLYCOCALYX IN TYPE 1 DIABETICS WITH DIABETIC NEPHROPATHY
Background: Glycocalyx is a glycoprotein layer protecting the capillary endothelium. An impaired glycocalyx may precede the development of microvascular complications in diabetes. Capillaroscopy is a new method to estimate the dimensions of the glycocalyx by measuring the perfused boundary region (P...
Main Author: | |
---|---|
Format: | Article |
Language: | English |
Published: |
Atlantis Press
2017-12-01
|
Series: | Artery Research |
Online Access: | https://www.atlantis-press.com/article/125930219/view |
id |
doaj-583be7e0a90842cfb844535a8204b47c |
---|---|
record_format |
Article |
spelling |
doaj-583be7e0a90842cfb844535a8204b47c2020-11-25T01:28:31ZengAtlantis PressArtery Research 1876-44012017-12-012010.1016/j.artres.2017.10.0485.2 REDUCED SUBLINGUAL ENDOTHELIAL GLYCOCALYX IN TYPE 1 DIABETICS WITH DIABETIC NEPHROPATHYSigne Abitz WintherBackground: Glycocalyx is a glycoprotein layer protecting the capillary endothelium. An impaired glycocalyx may precede the development of microvascular complications in diabetes. Capillaroscopy is a new method to estimate the dimensions of the glycocalyx by measuring the perfused boundary region (PBR). We evaluated the glycocalyx thickness in type 1 diabetic patients with different levels of historical and current albuminuria. Methods: Cross-sectional study including 77 type 1 diabetics stratified by history of normoalbuminuria (<30 mg/g; n = 26), microalbuminuria (30–299 mg/g; n = 27) and macroalbuminuria (>300 mg/g; n = 24). Glycocalyx thickness was assessed by 5 measurements with the GlycoCheck® device, a non-invasive hand-held microscope generating video recordings of the sublingual capillaries. Endothelial glycocalyx thickness was estimated from the PBR in capillaries with a diameter range of 5–25 μm. Higher PBR indicates smaller glycocalyx width. Urinary albumin-to-creatinine ratio (UACR) was measured in 3 morning samples. Results: In normo-, micro-, and macroalbuminurics PBR was (mean ± SD) 2.30 ± 0.22 μm, 2.32 ± 0.25 μm, and 2.49 ± 0.35 μm, respectively. Differences between normo- and macroalbuminurics and micro- and macroalbuminurics were significant (p < 0.05) in an unadjusted model and remained significant after adjustment for age, sex, HbA1c, diabetes duration and systolic blood pressure. In pooled (n = 77) multivariate linear regression, higher level of current UACR was associated with a higher PBR (p = 0.0007). Conclusion: In type 1 diabetics with a history of macroalbuminuria, measurements with the non-invasive GlycoCheck® device revealed significantly higher PBR, suggesting an impaired glycocalyx, compared to patients with normo- or microalbuminuria. Moreover, higher current level of albuminuria was associated with higher PBR.https://www.atlantis-press.com/article/125930219/view |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Signe Abitz Winther |
spellingShingle |
Signe Abitz Winther 5.2 REDUCED SUBLINGUAL ENDOTHELIAL GLYCOCALYX IN TYPE 1 DIABETICS WITH DIABETIC NEPHROPATHY Artery Research |
author_facet |
Signe Abitz Winther |
author_sort |
Signe Abitz Winther |
title |
5.2 REDUCED SUBLINGUAL ENDOTHELIAL GLYCOCALYX IN TYPE 1 DIABETICS WITH DIABETIC NEPHROPATHY |
title_short |
5.2 REDUCED SUBLINGUAL ENDOTHELIAL GLYCOCALYX IN TYPE 1 DIABETICS WITH DIABETIC NEPHROPATHY |
title_full |
5.2 REDUCED SUBLINGUAL ENDOTHELIAL GLYCOCALYX IN TYPE 1 DIABETICS WITH DIABETIC NEPHROPATHY |
title_fullStr |
5.2 REDUCED SUBLINGUAL ENDOTHELIAL GLYCOCALYX IN TYPE 1 DIABETICS WITH DIABETIC NEPHROPATHY |
title_full_unstemmed |
5.2 REDUCED SUBLINGUAL ENDOTHELIAL GLYCOCALYX IN TYPE 1 DIABETICS WITH DIABETIC NEPHROPATHY |
title_sort |
5.2 reduced sublingual endothelial glycocalyx in type 1 diabetics with diabetic nephropathy |
publisher |
Atlantis Press |
series |
Artery Research |
issn |
1876-4401 |
publishDate |
2017-12-01 |
description |
Background: Glycocalyx is a glycoprotein layer protecting the capillary endothelium. An impaired glycocalyx may precede the development of microvascular complications in diabetes. Capillaroscopy is a new method to estimate the dimensions of the glycocalyx by measuring the perfused boundary region (PBR). We evaluated the glycocalyx thickness in type 1 diabetic patients with different levels of historical and current albuminuria.
Methods: Cross-sectional study including 77 type 1 diabetics stratified by history of normoalbuminuria (<30 mg/g; n = 26), microalbuminuria (30–299 mg/g; n = 27) and macroalbuminuria (>300 mg/g; n = 24).
Glycocalyx thickness was assessed by 5 measurements with the GlycoCheck® device, a non-invasive hand-held microscope generating video recordings of the sublingual capillaries. Endothelial glycocalyx thickness was estimated from the PBR in capillaries with a diameter range of 5–25 μm. Higher PBR indicates smaller glycocalyx width. Urinary albumin-to-creatinine ratio (UACR) was measured in 3 morning samples.
Results: In normo-, micro-, and macroalbuminurics PBR was (mean ± SD) 2.30 ± 0.22 μm, 2.32 ± 0.25 μm, and 2.49 ± 0.35 μm, respectively. Differences between normo- and macroalbuminurics and micro- and macroalbuminurics were significant (p < 0.05) in an unadjusted model and remained significant after adjustment for age, sex, HbA1c, diabetes duration and systolic blood pressure. In pooled (n = 77) multivariate linear regression, higher level of current UACR was associated with a higher PBR (p = 0.0007).
Conclusion: In type 1 diabetics with a history of macroalbuminuria, measurements with the non-invasive GlycoCheck® device revealed significantly higher PBR, suggesting an impaired glycocalyx, compared to patients with normo- or microalbuminuria.
Moreover, higher current level of albuminuria was associated with higher PBR. |
url |
https://www.atlantis-press.com/article/125930219/view |
work_keys_str_mv |
AT signeabitzwinther 52reducedsublingualendothelialglycocalyxintype1diabeticswithdiabeticnephropathy |
_version_ |
1725101128641675264 |