Corneal Confocal Microscopy Predicts the Development of Diabetic Neuropathy: A Longitudinal Diagnostic Multinational Consortium Study

Objectives: Corneal nerve fiber length (CNFL) has been shown in research studies to identify diabetic peripheral neuropathy (DPN). In this longitudinal diagnostic study, we assessed the ability of CNFL to predict the development of DPN. Research Design and Methods: From a multinational cohort of 998 participants with type 1 and type 2 diabetes, we studied the subset of 261 who were free of DPN at baseline and completed at least four years of follow-up for incident DPN. The predictive validity of CNFL for the development of DPN was determined using time-dependent receiver operating characteristic (ROC) curves. Results: 203 participants had type 1 and 58 had type 2 diabetes. Mean follow-up time was 5.8 years (interquartile range 4.2-7.0). New onset DPN occurred in 60 participants (23%; 4.29 events per 100 person years). Participants who developed DPN were older, had a higher prevalence of type 2 diabetes, higher BMI, and longer duration of diabetes. The baseline electrophysiology and CCM parameters were in the normal range but were all significantly lower in participants who developed DPN. The time-dependent area under the ROC curve (AUC) for CNFL ranged between 0.61 and 0.69 for years 1-5 and was 0.80 at year 6. The optimal diagnostic threshold for a baseline CNFL of 14.1mm/mm2 was associated with 67% sensitivity, 71% specificity, and a hazard rate ratio of 2.95 (95% CI 1.70-5.11, p<0.001) for new onset DPN. Conclusions: CNFL showed good predictive validity for identifying patients at higher risk of developing DPN approximately 6 years in the future.

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Corneal Confocal Microscopy Predicts the Development of Diabetic Neuropathy: A Longitudinal Diagnostic Multinational Consortium Study

10.2337/figshare.14696808.v1 ◽

2021 ◽

Author(s):

Bruce A. Perkins ◽

Leif Erik Lovblom ◽

Evan J.H. Lewis ◽

Vera Bril ◽

Maryam Ferdousi ◽

...

Keyword(s):

Type 2 Diabetes ◽

Predictive Validity ◽

Time Dependent ◽

Diagnostic Study ◽

Diagnostic Threshold ◽

Corneal Confocal Microscopy ◽

New Onset

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Insulin Dose Adjustment Following Bariatric Surgery, a Review of Available Literature

Journal of Diabetes Science and Technology ◽

10.1177/19322968211028886 ◽

2021 ◽

pp. 193229682110288

Author(s):

Lynn E. Kassel ◽

Jessica J. Berei ◽

Jamie M. Pitlick ◽

Joel E. Rand

Keyword(s):

Diabetes Mellitus ◽

Type 2 Diabetes ◽

Bariatric Surgery ◽

Type 2 Diabetes Mellitus ◽

Dose Adjustment ◽

Insulin Dose ◽

Appraisal Tool

Bariatric surgery is a known and effective treatment for type 2 diabetes mellitus. Patients with type 1 diabetes mellitus and exogenous insulin-requiring type 2 diabetes mellitus require adjusted insulin dosing after surgery to avoid hypoglycemia. This review describes insulin dose adjustments following a variety of bariatric procedures. After searching the available literature and assessing for eligibility, 8 articles were included. The Johns Hopkins Research Evidence Appraisal Tool for literature appraisal was used. The results of this review reveal insulin dose adjustment varies based upon surgical procedure type and time of follow-up from the procedure.

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Type 2 Diabetes in Youth

Global Pediatric Health ◽

10.1177/2333794x20981343 ◽

2020 ◽

Vol 7 ◽

pp. 2333794X2098134

Author(s):

Goutham Rao ◽

Elizabeth T. Jensen

Keyword(s):

Type 2 Diabetes ◽

The United States ◽

Second Line Therapy ◽

Educational Value ◽

Line Therapy ◽

Potential Impact ◽

Diabetes In Youth ◽

New Onset

The incidence of type 2 diabetes in children and adolescents in the United States rose at an annual rate of 4.8% between 2002-2003 and 2014-2015. Type 2 diabetes progresses more aggressively to complications than type 1 diabetes. For example, in one large epidemiological study, proliferative retinopathy affected 5.6% and 9.1% of children with type 1 and type 2 diabetes, respectively. Screening begins at age 10 or at onset of puberty, and is recommended among children with a BMI% ≥85 with risk factors such as a family history and belonging to a high risk racial or ethnic or racial group. HbA1C% is preferred for screening as it does not require fasting. As distinguishing between type 1 and type 2 diabetes is not straightforward, all children with new onset disease should undergo autoantibody testing. Results of lifestyle interventions for control of type 2 diabetes have been disappointing, but are still recommended for their educational value and the potential impact upon some participants. There is limited evidence for the benefit of newer mediations. Liraglutide, a GLP-1 agonist, however, has been shown to significantly reduce HbA1C% in one study and is now approved for children. Liraglutide should be considered as second line therapy.

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Correlation between markers of renal function and sight-threatening diabetic retinopathy in type 2 diabetes: a longitudinal study in an Indian clinic population

BMJ Open Diabetes Research & Care ◽

10.1136/bmjdrc-2020-001325 ◽

2020 ◽

Vol 8 (1) ◽

pp. e001325 ◽

Cited By ~ 1

Author(s):

Ramachandran Rajalakshmi ◽

Coimbatore Subramanian Shanthi Rani ◽

Ulagamathesan Venkatesan ◽

Ranjit Unnikrishnan ◽

Ranjit Mohan Anjana ◽

...

Keyword(s):

Type 2 Diabetes ◽

Diabetic Retinopathy ◽

Serum Creatinine ◽

Cox Regression ◽

Tertiary Care ◽

Cox Regression Analysis ◽

Increased Risk ◽

New Onset

IntroductionPrevious epidemiological studies have reported on the prevalence of diabetic kidney disease (DKD) and diabetic retinopathy (DR) from India. The aim of this study is to evaluate the effect of DKD on the development of new-onset DR and sight-threatening diabetic retinopathy (STDR) in Asian Indians with type 2 diabetes (T2D).Research design and methodsThe study was done on anonymized electronic medical record data of people with T2D who had undergone screening for DR and renal work-up as part of routine follow-up at a tertiary care diabetes center in Chennai, South India. The baseline data retrieved included clinical and biochemical parameters including renal profiles (serum creatinine, estimated glomerular filtration rate (eGFR) and albuminuria). Grading of DR was performed using the modified Early Treatment Diabetic Retinopathy Study grading system. STDR was defined as the presence of proliferative diabetic retinopathy (PDR) and/or diabetic macular edema. DKD was defined by the presence of albuminuria (≥30 µg/mg) and/or reduction in eGFR (<60 mL/min/1.73 m2). Cox regression analysis was used to evaluate the hazard ratio (HR) for DR and STDR.ResultsData of 19 909 individuals with T2D (mean age 59.6±10.2 years, mean duration of diabetes 11.1±12.1 years, 66.1% male) were analyzed. At baseline, DR was present in 7818 individuals (39.3%), of whom 2249 (11.3%) had STDR. During the mean follow-up period of 3.9±1.9 years, 2140 (17.7%) developed new-onset DR and 980 individuals with non-proliferative DR (NPDR) at baseline progressed to STDR. Higher serum creatinine (HR 1.5, 95% CI 1.3 to 1.7; p<0.0001), eGFR <30 mL/min/1.73 m2 (HR 4.9, 95% CI 2.9 to 8.2; p<0.0001) and presence of macroalbuminuria >300 µg/mg (HR 3.0, 95% CI 2.4 to 3.8; p<0.0001) at baseline were associated with increased risk of progression to STDR.ConclusionsDKD at baseline is a risk factor for progression to STDR. Physicians should promptly refer their patients with DKD to ophthalmologists for timely detection and management of STDR.

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Risk of early mortality and cardiovascular disease in type 1 diabetes: a comparison with type 2 diabetes, a nationwide study

Cardiovascular Diabetology ◽

10.1186/s12933-019-0953-7 ◽

2019 ◽

Vol 18 (1) ◽

Cited By ~ 7

Author(s):

You-Bin Lee ◽

Kyungdo Han ◽

Bongsung Kim ◽

Seung-Eun Lee ◽

Ji Eun Jun ◽

...

Keyword(s):

Type 2 Diabetes ◽

Cardiovascular Disease ◽

Type 1 Diabetes ◽

Cox Regression ◽

Early Mortality ◽

Hazard Ratios ◽

Epidemiological Characteristics

Abstract Background Both type 1 and type 2 diabetes are well-established risk factors for cardiovascular disease and early mortality. However, few studies have directly compared the hazards of cardiovascular outcomes and premature death among people with type 1 diabetes to those among people with type 2 diabetes and subjects without diabetes. Furthermore, information about the hazard of cardiovascular disease and early mortality among Asians with type 1 diabetes is sparse, although the clinical and epidemiological characteristics of Asians with type 1 diabetes are unlike those of Europeans. We estimated the hazard of myocardial infarction (MI), hospitalization for heart failure (HF), atrial fibrillation (AF), and mortality during follow-up in Korean adults with type 1 diabetes compared with those without diabetes and those with type 2 diabetes. Methods We used Korean National Health Insurance Service datasets of preventive health check-ups from 2009 to 2016 in this retrospective longitudinal study. The hazard ratios of MI, HF, AF, and mortality during follow-up were analyzed using the Cox regression analyses according to the presence and type of diabetes in ≥ 20-year-old individuals without baseline cardiovascular disease (N = 20,423,051). The presence and type of diabetes was determined based on the presence of type 1 or type 2 diabetes at baseline. Results During more than 93,300,000 person-years of follow-up, there were 116,649 MIs, 135,532 AF cases, 125,997 hospitalizations for HF, and 344,516 deaths. The fully-adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) for incident MI, hospitalized HF, AF, and all-cause death within the mean follow-up of 4.6 years were higher in the type 1 diabetes group than the type 2 diabetes [HR (95% CI) 1.679 (1.490–1.893) for MI; 2.105 (1.901–2.330) for HF; 1.608 (1.411–1.833) for AF; 1.884 (1.762–2.013) for death] and non-diabetes groups [HR (95% CI) 2.411 (2.138–2.718) for MI; 3.024 (2.730–3.350) for HF; 1.748 (1.534–1.993) for AF; 2.874 (2.689–3.073) for death]. Conclusions In Korea, the presence of diabetes was associated with a higher hazard of cardiovascular disease and all-cause death. Specifically, people with type 1 diabetes had a higher hazard of cardiovascular disease and all-cause mortality compared to people with type 2 diabetes.

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3269Impact of type 2 diabetes on incidence and phenotype of heart failure in patients with atrial fibrillation

European Heart Journal ◽

10.1093/eurheartj/ehz745.0054 ◽

2019 ◽

Vol 40 (Supplement_1) ◽

Author(s):

M Polovina ◽

I Milinkovic ◽

G Krljanac ◽

I Veljic ◽

I Petrovic-Djordjevic ◽

...

Keyword(s):

Heart Failure ◽

Atrial Fibrillation ◽

Type 2 Diabetes ◽

Left Ventricular ◽

Left Ventricular Ejection ◽

Diabetic Patients ◽

History Of ◽

New Onset

Abstract Background Type 2 diabetes (T2DM) portends adverse prognosis in patients with atrial fibrillation (AF). Whether T2DM independently increases the risk of incident heart failure (HF) in AF is uncertain. Also, HF phenotype developing in patients with vs. those without T2DM has not been characterised. Purpose In AF patients without a history of prior HF, we aimed to assess: 1) the impact of T2DM on the risk of new-onset HF; and 2) the association between T2DM and HF phenotype developing during the prospective follow-up. Methods We included diabetic and non-diabetic AF patients, without a history of HF. Baseline T2DM status was inferred from medical history, haemoglobin A1c levels and oral glucose tolerance test. Study outcome was the first hospital admission or emergency department treatment for new-onset HF during the prospective follow-up. The phenotype of new-onset HF was determined by echocardiographic exam performed following clinical stabilisation (at hospital discharge, or within a month after HF diagnosis). HF phenotype was defined as HFrEF (left ventricular ejection fraction [LVEF] <40%), HFmrEF (LVEF 40–49%) or HFpEF (LVEF≥50%). Cox regression analyses adjusted for age, sex, baseline LVEF, comorbidities, smoking status, alcohol intake, AF type (paroxysmal vs. non-paroxysmal) and T2DM treatment was used to analyse the association between T2DM and incident HF. Results Among 1,288 AF patients without prior HF (mean age: 62.1±12.7 years; 61% male), T2DM was present in 16.5%. Diabetic patients had higher mean baseline LVEF compared with nondiabetic patients (50.0±6.2% vs. 57.6±9.0%; P<0.001). During the median 5.5-year follow-up, new-onset HF occurred in 12.4% of patients (incidence rate, 2.9; 95% confidence interval [CI], 2.5–3.3 per 100 patient-years). Compared with non-diabetic patients, those with T2DM had a hazard ratio of 2.1 (95% CI, 1.6–2.8; P<0.001) for new-onset HF, independent of baseline LVEF or other factors. In addition, diabetic patients had a significantly greater decline in covariate-adjusted mean LVEF (−10.4%; 95% CI, −9.8% to −10.8%) at follow-up, compared with nondiabetic patients (−4.0%; 95% CI, −3.8% to −4.2%), P<0.001. The distribution of HF phenotypes at follow-up is presented in Figure. Among patients with T2DM, HFrEF (56.9%) was the most common phenotype of HF, whereas in patients without T2DM, HF mostly took the phenotype of HFpEF (75.0%). Conclusions T2DM is associated with an independent risk of new-onset HF in patients with AF and confers a greater decline in LVEF compared to individuals without T2DM. HFrEF was the most prevalent presenting phenotype of HF in AF patients with T2DM.

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Standard mortality rates and years of life lost for serologically defined adult-onset type 1 and type 2 diabetes – A fifteen year follow-up

Diabetes Research and Clinical Practice ◽

10.1016/j.diabres.2019.107943 ◽

2020 ◽

Vol 160 ◽

pp. 107943

Author(s):

Maria Thunander ◽

Anna Lindgren ◽

Christer Petersson ◽

Mona Landin-Olsson ◽

Sara Holmberg

Keyword(s):

Type 2 Diabetes ◽

Mortality Rates ◽

Years Of Life Lost ◽

Adult Onset ◽

Onset Type

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The relationship between resting heart rate and new‐onset microalbuminuria in people with type 2 diabetes: An 8‐year follow‐up study

Diabetic Medicine ◽

10.1111/dme.14436 ◽

2020 ◽

Author(s):

Y. K. Chang ◽

H. C. Fan ◽

P. S. Lim ◽

S. Y. Chuang ◽

C. C. Hsu

Keyword(s):

Type 2 Diabetes ◽

Heart Rate ◽

Resting Heart Rate ◽

Follow Up Study ◽

The Relationship ◽

New Onset

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Association between high-density lipoprotein cholesterol and type 2 diabetes mellitus among Chinese: the Beijing longitudinal study of aging

Lipids in Health and Disease ◽

10.1186/s12944-021-01499-5 ◽

2021 ◽

Vol 20 (1) ◽

Author(s):

Xue Cao ◽

Zhe Tang ◽

Jie Zhang ◽

Haibin Li ◽

Manjot Singh ◽

...

Keyword(s):

Diabetes Mellitus ◽

Type 2 Diabetes ◽

Type 2 Diabetes Mellitus ◽

Proportional Hazards ◽

Proportional Hazards Model ◽

Density Lipoprotein ◽

Hazards Model ◽

New Onset

Abstract Background Some previous studies on different populations have yielded inconsistent findings with respect to the relationship between levels of high-density lipoprotein cholesterol (HDL-C) and future type 2 diabetes mellitus (T2DM) incidence. This study was designed to gain further insight into this relationship through a cohort study with a 25-year follow-up duration. Methods In total, 1462 individuals that were 55 years of age or older and were free of T2DM at baseline were enrolled in the present study. T2DM incidence among this study population was detected through self-reported diagnoses or the concentration of fasting plasma glucose. The data were derived from nine surveys conducted from 1992 to 2017. The correlation between HDL-C levels and the T2DM risk was assessed through Cox proportional-hazards model and proportional hazards model for the sub-distribution with time-dependent variables. Results Over the follow-up period, 120 participants were newly diagnosed with new-onset T2DM. When research participants were separated into four groups on the basis for quartiles of their levels of HDL-C measured at baseline, and incidence of diabetes declined with higher baseline HDL-C levels at 12.60, 9.70, 5.38, and 5.22 per 1000 person-years, respectively. Adjusted hazard ratios (HRs) were 0.98 (95% confidence interval [CI]: 0.62–1.55), 0.48 (95% CI: 0.27–0.85) and 0.44 (95% CI: 0.25–0.80) for individuals with HDL-C levels within the 1.15–1.39, 1.40–1.69, and ≥ 1.70 mmol/L ranges relative to participants with HDL-C levels < 1.15 mmol/L. Multiple sensitivity analyses similarly revealed reduced risk of diabetes incidence with increased HDL-C levels. Incorporating the levels of HDL-C into a multivariate model significantly enhanced the overall power of the predictive model (P values were 0.0296, 0.0011, respectively, for 5- and 10-year risk of diabetes). Conclusions Levels of HDL-C were independently and negatively associated with the risk of the new-onset T2DM among middle-aged and elderly Chinese.

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