[A policy brief by the International Diabetes Federation and the International Society of Nephrology]

International co-validation of glycated hemoglobin A1c certified reference materials

Accurate quantification of glycated hemoglobin A1c (HbA1c) is essential for the diagnosis and glycemic control in diabetic patients. The validation of HbA1c certified reference material (CRM) enhances the accuracy and comparability of HbA1c measurements. An international co-validation of HbA1c CRMs was conducted among the National Institute of Metrology, P.R. China (NIM), the Korea Research Institute of Standards and Science (KRISS), and the National Metrology Institute of Japan (NMIJ). Candidate reference materials (RMs) of VHLTPE, glycated VHLTPE, and two levels of HbA1c were developed and supplied by NIM. NIM investigated the homogeneity and stability of these materials, finding no inhomogeneity and confirming stability throughout the co-validation period. Isotope dilution mass spectrometry was employed for the quantitation of both hexapeptides in solution and HbA1c in a matrix. All three national metrology institutes (NMIs) were involved in the quantification of hexapeptides in solution, whereas only NIM and KRISS were involved in the quantification of HbA1c in the matrix. En values for both hexapeptides and HbA1c in the matrix were calculated, all being less than 1, indicating good agreement with the certified values. The successful co-validation of these CRMs demonstrates the reliability of the certified values, thereby benefiting the accuracy and comparability of HbA1c measurements.

Challenging diabetes mellitus-related stigma with targeted education

Diabetes mellitus is a highly prevalent chronic metabolic disorder that requires rigorous self-management to prevent complications and maintain health. Managing diabetes can also be psychologically challenging for those living with the condition, significantly affecting their mental health, particularly when diabetes-related stigma manifests as discrimination, social rejection and internalised shame. This article examines how diabetes-related stigma often stems from misconceptions about the condition, but nonetheless can adversely affect the self-care, physical health and quality of life of people living with the condition. The author explains how mitigating this stigma through targeted education, empathic communication and advocacy is essential and explores the pivotal role of nurses in reducing diabetes-related stigma.

CYSTATIN C-A Monitoring Perspective of Chronic Kidney Disease in Patients with Diabetes

Chronic kidney disease (CKD) is a microvascular complication that frequently affects numerous patients diagnosed with diabetes. For the diagnosis of CKD, the guidelines recommend the identification of the urinary albumin/creatinine ratio and the determination of serum creatinine, based on which the estimated rate of glomerular filtration (eGFR) is calculated. Serum creatinine is routinely measured in clinical practice and reported as creatinine-based estimated glomerular filtration rate (eGFRcr). It has enormous importance in numerous clinical decisions, including the detection and management of CKD, the interpretation of symptoms potentially related to this pathology and the determination of drug dosage. The equations based on cystatin C involve smaller differences between race groups compared to GFR estimates based solely on creatinine. The cystatin C-based estimated glomerular filtration rate (eGFRcys) or its combination with creatinine (eGFRcr-cys) are suggested as confirmatory tests in cases where creatinine is known to be less precise or where a more valid GFR estimate is necessary for medical decisions. Serum creatinine is influenced by numerous factors: age, gender, race, muscle mass, high-protein diet, including protein supplements, and the use of medications that decrease tubular creatinine excretion (H2 blockers, trimethoprim, fenofibrate, ritonavir, and other HIV drugs). The low levels of creatinine stemming from a vegetarian diet, limb amputation, and conditions associated with sarcopenia such as cirrhosis, malnutrition, and malignancies may lead to inaccurately lower eGFRcr values. Therefore, determining the GFR based on serum creatinine is not very precise. This review aims to identify a new perspective in monitoring renal function, considering the disadvantages of determining the GFR based exclusively on serum creatinine.

Diabetes-related social stigma among university students in Saudi Arabia: A cross-sectional study

Diabetes-related stigma encompasses stereotypes, discrimination, and blame, significantly influencing diabetes management and overall well-being. Despite high diabetes-related stigma prevalence in various contexts, there is limited research in Saudi Arabia, especially that perceived/enacted by non-diabetics, the so-called social stigma. This cross-sectional study aimed to assess diabetes-related social stigma (DRSS) and to identify correlates among university students in Jazan, Saudi Arabia. A convenience sampling was employed to collect responses from 536 Jazan University students using an online questionnaire. After excluding participants with diabetes mellitus (n = 17), data from 519 individuals were analyzed. The DRSS questionnaire comprised 2 scales: social distancing and negative attitudes and stereotyping. The study found mixed results regarding the student population's attitude toward diabetic patients. Most students displayed favorable answers on social distancing scale statements, with the majority of statements showing willingness to engage in different social aspects with diabetics getting a positive response from at least 96% of respondents. The study identified various types of negative attitudes and stereotyping, for example, 46% of the sample agreed that dealing with a diabetic is upsetting or tiring. Correlates of social distancing included academic year, rural residence, and nonmedical field of specialty, while predictors of negative attitude and stereotyping included female gender and higher family income. The findings indicate a need to improve attitudes related to diabetics among university students in Saudi Arabia, with a particular focus on negative attitude stereotyping. Raising awareness about DRSS, especially among future healthcare professionals, is essential. Further refinement of the DRSS measurement scales is recommended through broader testing among the general population to enhance our understanding of this important issue.

Prevalence of Chronic Kidney Disease in Individuals With Type 2 Diabetes Within Primary Care: A Cross-Sectional Study

AIMS

To assess the prevalence and risk factors for chronic kidney disease (CKD) among adults with type 2 diabetes within primary care.

METHODS

This cross-sectional study evaluated 1319 individuals receiving standard care across 26 primary units from July 2017 to January 2023. The estimated glomerular filtration rate (eGFR) and albuminuria were used for the diagnosis of CKD. CKD was defined by eGFR values of <60 mL/min/1.73 m2 and/or albumin-to-creatine ratio ≥30 mg/g. Logistic regression was applied to identify factors associated with CKD and study variables.

RESULTS

The median age of participants (60.6% females) was 55 years and the median diabetes duration was 10 years. The overall CKD prevalence in the study population was 39.2%. Within the CKD group, the prevalence rates of albuminuria, albuminuria coupled with low eGFR and isolated low eGFR were 72.1%, 19%, and 8.9%, respectively. The prevalence of CKD was 30.6% among participants under 40 years old and a higher value was observed in middle-aged adults with early-onset diabetes (at age <40 years) compared with the later-onset group. Multivariable analyses identified associations between CKD and factors such as age, the male sex, diabetes duration, hypertension, retinopathy, and metformin use.

CONCLUSION

A relatively high prevalence of CKD, especially in non-elderly adults, was revealed in this primary care study. Early recognition strategies for CKD are crucial for timely prevention within primary care.