scholarly journals Optical Coherence Tomography Angiography in Type 1 Diabetes Mellitus—Report 2: Diabetic Kidney Disease

2021 ◽  
Vol 11 (1) ◽  
pp. 197
Author(s):  
Aníbal Alé-Chilet ◽  
Carolina Bernal-Morales ◽  
Marina Barraso ◽  
Teresa Hernández ◽  
Cristian Oliva ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Optical Coherence Tomography ◽  
Type 1 Diabetes ◽  
Kidney Disease ◽  
Type 1 Diabetes Mellitus ◽  
Diabetic Kidney Disease ◽  
Optical Coherence Tomography Angiography ◽  
Optical Coherence ◽  
Diabetic Kidney

The purpose of this study is to investigate potential associations between optical coherence tomography angiography (OCTA) parameters and diabetic kidney disease (DKD) categories in type 1 diabetes mellitus (T1DM) patients and controls. A complete ocular and systemic examination, including OCTA imaging tests and bloods, was performed. OCTA parameters included vessel density (VD), perfusion density (PD), foveal avascular zone area (FAZa), perimeter (FAZp) and circularity (FAZc) in the superficial vascular plexus, and DKD categories were defined according to glomerular filtration rate (GFR), albumin-creatinine ratio (ACR) and KDIGO prognosis risk classifications. A total of 425 individuals (1 eye/1 patient) were included. Reduced VD and FAZc were associated with greater categories of GFR (p = 0.002, p = 0.04), ACR (p = 0.003, p = 0.005) and KDIGO risk prognosis classifications (p = 0.002, p = 0.005). FAZc was significantly reduced in greater KDIGO prognosis risk categories (low risk vs. moderate risk, 0.65 ± 0.09 vs. 0.60 ± 0.07, p < 0.05). VD and FAZc presented the best diagnostic performance in ROCs. In conclusion, OCTA parameters, such as VD and FAZc, are able to detect different GFR, ACR, and KDIGO categories in T1DM patients and controls in a non-invasive, objective quantitative way. FAZc is able to discriminate within T1DM patients those with greater DKD categories and greater risk of DKD progression.

scholarly journals B cells in type 1 diabetes mellitus and diabetic kidney disease

2017 ◽  
Vol 13 (11) ◽  
pp. 712-720 ◽  
Author(s):  
Mia J. Smith ◽  
Kimber M. Simmons ◽  
John C. Cambier
Keyword(s):  
Diabetes Mellitus ◽  
Type 1 Diabetes ◽  
B Cells ◽  
Kidney Disease ◽  
Type 1 Diabetes Mellitus ◽  
Diabetic Kidney Disease ◽  
Diabetic Kidney

scholarly journals Early microvascular retinal changes in optical coherence tomography angiography in patients with type 1 diabetes mellitus

2017 ◽  
Vol 95 (8) ◽  
pp. e751-e755 ◽  
Author(s):  
Joseph M. Simonett ◽  
Fabio Scarinci ◽  
Fabiana Picconi ◽  
Paola Giorno ◽  
Daniele De Geronimo ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Optical Coherence Tomography ◽  
Type 1 Diabetes ◽  
Type 1 Diabetes Mellitus ◽  
Optical Coherence Tomography Angiography ◽  
Optical Coherence

scholarly journals Urinary Extracellular Vesicles as a Source of NGAL for Diabetic Kidney Disease Evaluation in Children and Adolescents With Type 1 Diabetes Mellitus

2022 ◽  
Vol 12 ◽  
Author(s):  
Francisca Ugarte ◽  
Daniela Santapau ◽  
Vivian Gallardo ◽  
Carolina Garfias ◽  
Anahí Yizmeyián ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Type 1 Diabetes ◽  
Kidney Disease ◽  
Type 1 Diabetes Mellitus ◽  
Extracellular Vesicles ◽  
Diabetic Kidney Disease ◽  
Tubular Damage ◽  
Activated T Cells ◽  
Diabetic Kidney

BackgroundTubular damage has a role in Diabetic Kidney Disease (DKD). We evaluated the early tubulointerstitial damage biomarkers in type-1 Diabetes Mellitus (T1DM) pediatric participants and studied the correlation with classical DKD parameters.MethodsThirty-four T1DM and fifteen healthy participants were enrolled. Clinical and biochemical parameters [Glomerular filtration Rate (GFR), microalbuminuria (MAU), albumin/creatinine ratio (ACR), and glycated hemoglobin A1c (HbA1c)] were evaluated. Neutrophil gelatinase-associated lipocalin (NGAL), Hypoxia-inducible Factor-1α (HIF-1α), and Nuclear Factor of Activated T-cells-5 (NFAT5) levels were studied in the supernatant (S) and the exosome-like extracellular vesicles (E) fraction from urine samples.ResultsIn the T1DM, 12% had MAU &gt;20 mg/L, 6% ACR &gt;30 mg/g, and 88% had eGFR &gt;140 ml/min/1.72 m2. NGAL in the S (NGAL-S) or E (NGAL-E) fraction was not detectable in the control. The NGAL-E was more frequent (p = 0.040) and higher (p = 0.002) than NGAL-S in T1DM. The T1DM participants with positive NGAL had higher age (p = 0.03), T1DM evolution (p = 0.03), and serum creatinine (p = 0.003) than negative NGAL. The NGAL-E correlated positively with tanner stage (p = 0.0036), the median levels of HbA1c before enrollment (p = 0.045) and was independent of ACR, MAU, and HbA1c at the enrollment. NFAT5 and HIF-1α levels were not detectable in T1DM or control.ConclusionUrinary exosome-like extracellular vesicles could be a new source of early detection of tubular injury biomarkers of DKD in T1DM patients.

Angiopoietin 2 and Neuropeptide Y are Associated with Diabetic Kidney Disease in Type 1 Diabetes Mellitus

2020 ◽  
Vol 128 (10) ◽  
pp. 654-662 ◽  
Author(s):  
Jelizaveta Sokolovska ◽  
Juris Stefanovics ◽  
Gita Gersone ◽  
Leonora Pahirko ◽  
Janis Valeinis ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Type 1 Diabetes ◽  
Diabetic Nephropathy ◽  
Kidney Disease ◽  
Neuropeptide Y ◽  
Type 1 Diabetes Mellitus ◽  
Diabetic Kidney Disease ◽  
Diabetic Kidney ◽  
Angiopoietin 2

Abstract Background Serum angiopoietin 2 levels have been associated with endothelial dysfunction and diabetic kidney disease. Derangements in autonomous nervous system lead to increased production of vasoconstrictory and angiogenic mediators such as norepinephrine and neuropeptide Y and are associated with increased risk of microvascular complications. Aim To investigate associations between angiopoietin 2, neuropeptide Y and diabetic kidney disease in patients with type 1 diabetes mellitus. Methods 289 patients with type 1 diabetes mellitus duration > 1 year were included. Patients were stratified according to presence of diabetic nephropathy (macroalbuminuria, estimated glomerular filtration rate<60 ml/min/1.73 m2 or end-stage renal disease). Angiopoietin 2 was measured by Luminex technology. Neuropeptide Y was measured by ELISA. Results Patients with diabetic nephropathy had significantly increased levels of angiopoietin 2 (4020.5 (2172.4–5778.1) pg/ml vs. 2001.0 (1326.7–2862.7) pg/ml) and neuropeptide Y (18.22 (14.85–21.85) ng/ml vs. 12.91 (9.96–17.07) ng/ml). Higher levels of angiopoietin 2 and neuropeptide Y were observed also in patients with arterial hypertension. Angiopoietin 2 and neuropeptide Y correlated significantly (ρ=0.245, p<0.001). Both biomarkers were significant predictors of estimated glomerular filtration rate and diabetic nephropathy in univariate regression models. In the fully adjusted regression models and after application of a stepwise selection regression method, angiopoietin 2 demonstrated a stronger predictive power for diabetic nephropathy compared to neuropeptide Y. Conclusion Diabetic nephropathy is associated with increased serum concentrations of angiopoietin 2 (marker of endothelial dysfunction) and neuropeptide Y (marker of sympathetic activity) in type 1 diabetes. Angiopoietin 2 is a more potent predictor of diabetic nephropathy compared to neuropeptide Y.

scholarly journals Microperimetry and Optical Coherence Tomography Changes in Type-1 Diabetes Mellitus without Retinopathy

Diagnostics ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 136
Author(s):  
Elvira Orduna-Hospital ◽  
Judit Otero-Rodríguez ◽  
Lorena Perdices ◽  
Ana Sánchez-Cano ◽  
Ana Boned-Murillo ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Optical Coherence Tomography ◽  
Type 1 Diabetes ◽  
Type 1 Diabetes Mellitus ◽  
Negative Correlation ◽  
Retinal Sensitivity ◽  
Optical Coherence ◽  
Disease Evolution ◽  
Macular Sensitivity

Background: We aimed to measure and correlate inner retinal layer (IRL) thickness and macular sensitivity by optical coherence tomography (OCT) and by microperimetry, respectively, in type 1 diabetes mellitus patients (DM1) without diabetic retinopathy (DR). Methods: Fifty-one DM1 patients and 81 age-matched healthy subjects underwent measurement of the axial length (AL), retinal thickness in the macular ETDRS areas by swept source (SS)-OCT and macular sensitivity by microperimeter. Results: The total retinal and IRL thicknesses were thicker in the DM1 group (p < 0.05) in practically all ETDRS areas, and they had a generalized decrease in sensitivity (p < 0.05) in 9 areas between both groups. There was a significant negative correlation between retinal sensitivity and age in all areas and in visual acuity (VA) in 5 out of the 9 areas for DM1 patients. Only a mild negative correlation was observed between retinal sensitivity in the 5° nasal inner (5NI) area and in IRL thickness in the temporal inner (TI) area (−0.309 with p = 0.029) in the DM1 group. Conclusion: Aging and disease evolution in DM1 patients without DR signs generate a decrease in retinal sensitivity. There was a direct relationship between retinal sensitivity and macular thickness in the DM1 group.

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