scholarly journals Associations between Macular OCT Angiography and Nonproliferative Diabetic Retinopathy in Young Patients with Type 1 Diabetes Mellitus

2020 ◽  
Vol 2020 ◽  
pp. 1-12 ◽  
Author(s):  
Nina C. B. B. Veiby ◽  
Aida Simeunovic ◽  
Martin Heier ◽  
Cathrine Brunborg ◽  
Naila Saddique ◽  
...  
Keyword(s):  
Type 1 Diabetes ◽  
Diabetic Retinopathy ◽  
Young Patients ◽  
Cross Sectional Study ◽  
Foveal Avascular Zone ◽  
Cross Sectional ◽  
Nonproliferative Diabetic Retinopathy ◽  
Capillary Plexus ◽  
Automated Software

Background/Objective. Optical coherence tomography angiography (OCTA) is increasingly used to supplement ophthalmoscopy in the diagnosis and follow-up of diabetic retinopathy. Our objective was to confirm if OCTA parameters can predict the development of nonproliferative diabetic retinopathy (NPDR) and to clarify if any single OCTA parameter is associated with NPDR independently of well-known risk factors in young type 1 diabetes (T1D) patients. Methods. OCTA of both eyes was performed in a cross-sectional study of 14 to 30-year-old individuals with at least 10-year duration of T1D and controls recruited from the Norwegian Atherosclerosis and Childhood Diabetes (ACD) study. Vessel density (VD) and foveal avascular zone (FAZ) area in the superficial and deep capillary plexus (SCP and DCP), total retinal volume (TRV), and central macular thickness (CMT) were calculated using automated software. Univariate and multivariate ordered logistic regression (OLR) models were used accordingly. Results. We included 168 control eyes and 315 T1D eyes. Lower VD in DCP (OR 0.65, 95% CI 0.51–0.83), longer diabetes duration (OR 1.51, 95% CI 1.22–1.87), and higher waist circumference (OR 1.08, 95% CI 1.02–1.14) were significantly associated with progression of NPDR. VD in SCP and DCP were significantly lower in T1D patients without diabetic retinopathy than in controls. Conclusions. Sparser VD in DCP is significantly associated with severity of NPDR, supporting that OCTA might detect the earliest signs of NPDR before it is visible by ophthalmoscopy.

Venular oxygen saturation is increased in young patients with type 1 diabetes and mild nonproliferative diabetic retinopathy

2020 ◽  
Vol 98 (8) ◽  
pp. 800-807 ◽  
Author(s):  
Nina C.B.B. Veiby ◽  
Aida Simeunovic ◽  
Martin Heier ◽  
Cathrine Brunborg ◽  
Naila Saddique ◽  
...  
Keyword(s):  
Type 1 Diabetes ◽  
Diabetic Retinopathy ◽  
Oxygen Saturation ◽  
Young Patients ◽  
Nonproliferative Diabetic Retinopathy

scholarly journals Frequency of Lipohypertrophy and Associated Risk Factors in Young Patients with Type 1 Diabetes: A Cross-Sectional Study

2016 ◽  
Vol 7 (2) ◽  
pp. 259-267 ◽  
Author(s):  
Ayman A. Al Hayek ◽  
Asirvatham A. Robert ◽  
Rim B. Braham ◽  
Mohamed A. Al Dawish
Keyword(s):  
Risk Factors ◽  
Type 1 Diabetes ◽  
Young Patients ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Associated Risk Factors

scholarly journals Early Markers of Cardiovascular Disease Associated With Clinical Data and Autosomal Ancestry in Patients With Type 1 Diabetes: A Cross-sectional Study in an Admixed Brazilian Population.

2022 ◽  
Author(s):  
Roberta Maria Duailibe Ferreira Reis Reis ◽  
Dayse Aparecida Silva ◽  
Maria da Glória Tavares ◽  
Gilvan Cortês Nascimento ◽  
Sabrina da Silva Pereira Damianse ◽  
...  
Keyword(s):  
Cardiovascular Disease ◽  
Type 1 Diabetes ◽  
Young Patients ◽  
Cross Sectional Study ◽  
Brazilian Population ◽  
Sectional Study ◽  
Cross Sectional ◽  
Early Markers ◽  
Carotid Doppler

Abstract BackgroundPatients with type 1 diabetes (T1D) have a higher risk of developing cardiovascular disease (CVD), which is a major cause of death in this population. The objective of this study was to investigate early markers of CVD associated with clinical data and autosomal ancestry in T1D patients from an admixed Brazilian population. MethodsA cross-sectional study was conducted with 99 T1D patients. The early markers of CVD included the ankle-brachial index (ABI), coronary artery calcium score (CACS), and carotid Doppler sonography. Demographic, clinical, and serum data were collected. A panel of autosomal informational insertion/deletion ancestry markers was used to estimate the individual proportions of European, African, and Amerindian ancestry.ResultsThe study sample had a mean age of 27.6 years and 14.4 years of duration of T1D. The prevalence of alterations in early CVD markers was: ABI (< 0,9) 19.6%, CACS (> 0 +) 4.1%, and carotid Doppler 5.0%. There was significant agreement between CACS and carotid Doppler, and these were correlated with traditional risk factors for CVD. There was a predominance of European ancestry (47.3%), followed by African (28%) and Ameridian (24.7%). There were no association between early CVD markers and autosomal ancestry proportions.ConclusionThe ABI was useful in the early identification of CVD in asymptomatic young patients with T1D and with a short duration of disease, and showed agreement with the carotid Doppler. Although CACS and carotid Doppler are non-invasive tests, carotid Doppler is more cost-effective, and both have limitations in screening for CVD in young patients with a short duration of T1D. We did not find a statistically significant relationship between autosomal ancestry proportions and early CVD markers in an admixed Brazilian population.

Prevalence and risk factors for diabetic retinopathy in a hospital-based population of Australian children and adolescents with type 1 diabetes

2016 ◽  
Vol 29 (10) ◽  
Author(s):  
Stuart Keel ◽  
Catherine Itsiopoulos ◽  
Konstandina Koklanis ◽  
Meri Vukicevic ◽  
Fergus Cameron ◽  
...  
Keyword(s):  
Risk Factors ◽  
Type 1 Diabetes ◽  
Diabetic Retinopathy ◽  
Children And Adolescents ◽  
Hdl Cholesterol ◽  
Cross Sectional Study ◽  
High Density Lipoproteins ◽  
Cross Sectional ◽  
Emerging Risk

AbstractBackground:The aim of this study was to investigate the prevalence of, and traditional and emerging risk factors associated with, retinopathy in a hospital-based population of Australian children and adolescents with type 1 diabetes.Methods:This was a cross-sectional study of 483 children and adolescents with type 1 diabetes. Medical files were audited to collect all relevant clinical data. Diabetic retinopathy was assessed from colour retinal images by an ophthalmologist.Results:Diabetic retinopathy was observed in 11 (2.3%) participants. Logistic regression revealed that the principal components analysis derived risk profile of: higher serum creatinine, older age, higher systolic blood pressures, higher body mass index, abnormal estimated glomerular filtration rate (eGFR) (<59 mL/min), lower high density lipoproteins (HDL) cholesterol, higher serum sodium, longer duration of diabetes and narrower retinal arteriolar calibre was associated with diabetic retinopathy (ExpB=2.60, 95% CI 1.36/4.96, p=0.004).Conclusions:These results support the concept that the pathogenesis of diabetic retinopathy is likely due to the combined influence of various risk factors, many already identified.

scholarly journals Glycemic control associated factors in type 1 diabetes mellitus patients: a cross sectional study

2015 ◽  
Vol 7 (S1) ◽  
Author(s):  
Patrícia Ramos Guzatti ◽  
Amely PS Balthazar ◽  
Maria Heloisa Busi da Silva Canalli ◽  
Thais Fagnani Machado
Keyword(s):  
Diabetes Mellitus ◽  
Type 1 Diabetes ◽  
Glycemic Control ◽  
Type 1 Diabetes Mellitus ◽  
Associated Factors ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional

scholarly journals Association between central non-dipping pattern and platelet morphology in adults with type 1 diabetes without cardiovascular disease: a cross-sectional study

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Michal Kulecki ◽  
Dariusz Naskret ◽  
Mikolaj Kaminski ◽  
Dominika Kasprzak ◽  
Pawel Lachowski ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Type 1 Diabetes ◽  
Smoking Status ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Distribution Width ◽  
Non Invasive ◽  
Platelet Morphology ◽  
Oscillometric Device

AbstractThe non-dipping pattern is nighttime systolic blood pressure (SBP) fall of less than 10%. Several studies showed that the non-dipping pattern, increased mean platelet volume (MPV), and platelet distribution width (PDW) are associated with elevated cardiovascular risk. Hypertensives with the non-dipping pattern have higher MPV than the dippers but this relationship was never investigated among people with type 1 diabetes mellitus (T1DM). This study aimed to investigate the association between the central dipping pattern and platelet morphology in T1DM subjects. We measured the central and brachial blood pressure with a validated non-invasive brachial oscillometric device—Arteriograph 24—during twenty-four-hour analysis in T1DM subjects without diagnosed hypertension. The group was divided based on the central dipping pattern for the dippers and the non-dippers. From a total of 62 subjects (32 males) aged 30.1 (25.7–37) years with T1DM duration 15.0 (9.0–20) years, 36 were non-dippers. The non-dipper group had significantly higher MPV (MPV (10.8 [10.3–11.5] vs 10.4 [10.0–10.7] fl; p = 0.041) and PDW (13.2 [11.7–14.9] vs 12.3 [11.7–12.8] fl; p = 0.029) than dipper group. Multivariable logistic regression revealed that MPV (OR 3.74; 95% CI 1.48–9.45; p = 0.005) and PDW (OR 1.91; 95% CI 1.22–3.00; p = 0.005) were positively associated with central non-dipping pattern adjusting for age, sex, smoking status, daily insulin intake, and height. MPV and PDW are positively associated with the central non-dipping pattern among people with T1DM.

scholarly journals Insulin micro-secretion in Type 1 diabetes and related microRNA profiles

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Andrzej S. Januszewski ◽  
Yoon Hi Cho ◽  
Mugdha V. Joglekar ◽  
Ryan J. Farr ◽  
Emma S. Scott ◽  
...  
Keyword(s):  
Type 1 Diabetes ◽  
Cross Sectional Study ◽  
Diabetes Duration ◽  
Adult Onset ◽  
Sectional Study ◽  
Childhood Onset ◽  
Cross Sectional ◽  
C Peptide ◽  
Adult Onset Diabetes

AbstractThe aim of this cross-sectional study was to compare plasma C-peptide presence and levels in people without diabetes (CON) and with Type 1 diabetes and relate C-peptide status to clinical factors. In a subset we evaluated 50 microRNAs (miRs) previously implicated in beta-cell death and associations with clinical status and C-peptide levels. Diabetes age of onset was stratified as adult (≥ 18 y.o) or childhood (< 18 y.o.), and diabetes duration was stratified as ≤ 10 years, 10–20 years and > 20 years. Plasma C-peptide was measured by ultrasensitive ELISA. Plasma miRs were quantified using TaqMan probe-primer mix on an OpenArray platform. C-peptide was detectable in 55.3% of (n = 349) people with diabetes, including 64.1% of adults and 34.0% of youth with diabetes, p < 0.0001 and in all (n = 253) participants without diabetes (CON). C-peptide levels, when detectable, were lower in the individuals with diabetes than in the CON group [median lower quartile (LQ)–upper quartile (UQ)] 5.0 (2.6–28.7) versus 650.9 (401.2–732.4) pmol/L respectively, p < 0.0001 and lower in childhood versus adult-onset diabetes [median (LQ–UQ) 4.2 (2.6–12.2) pmol/L vs. 8.0 (2.3–80.5) pmol/L, p = 0.02, respectively]. In the childhood-onset group more people with longer diabetes duration (> 20 years) had detectable C-peptide (60%) than in those with shorter diabetes duration (39%, p for trend < 0.05). Nine miRs significantly correlated with detectable C-peptide levels in people with diabetes and 16 miRs correlated with C-peptide levels in CON. Our cross-sectional study results are supportive of (a) greater beta-cell function loss in younger onset Type 1 diabetes; (b) persistent insulin secretion in adult-onset diabetes and possibly regenerative secretion in childhood-onset long diabetes duration; and (c) relationships of C-peptide levels with circulating miRs. Confirmatory clinical studies and related basic science studies are merited.

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