A comparative study of cardiovascular risk stratification methods in type 1 diabetes mellitus patients.

The Steno Diabetes Center Copenhagen developed the Steno T1 Risk Engine (ST1RE) to predict cardiovascular events, encompassing fatal and nonfatal ischemic heart disease, ischemic stroke, heart failure, and peripheral arterial disease in type 1 diabetes mellitus(T1DM).The current study investigated the agreement between ST1RE and the Brazilian Society for Endocrinology and Metabology (SBEM) classification. Participants were included in the study if diagnosed with T1DM and had at least one outpatient visit in 2021. Patients with established cardiovascular disease and chronic kidney disease on dialysis were excluded. Clinical parameters were obtained from medical records, such as age, body mass index (BMI), blood pressure, physical activity, current smoking, microvascular target organ damage, levels of low-density lipoprotein cholesterol, creatinine, glycated hemoglobin (HbA1c), and albuminuria.Overall, 92 patients (38 males and 53 females) with an age median (P25; P75) of 33 years (25.5;42.5), BMI of 24.8 + 4.1 kg/m2, and duration of diabetes (mean ± SD) of 23.4 + 9.5 years were evaluated. There were no differences considering the gender for most analyzed variables, but a higher proportion of women exhibited microvascular complications such as microalbuminuria, macroalbuminuria, and retinopathy. Our results show a weak agreement in the 10-year cardiovascular risk estimation between SBEM and ST1RE classifications. According to SBEM criteria, 72.8% of patients were considered high-risk, while only 15.2% of patients received the same classification using ST1RE. The dissimilarities between these two classifications were also evident when age and gender factors were compared. While 60% of patients under 35 years were classified as high risk according to SBEM criteria, only 1.8% received this stratification risk in the ST1RE classification.The results indicate a low agreement between the 10-year cardiovascular event risk classification by SBEM and the classification by ST1RE for type 1 diabetes patients without established cardiovascular disease.

Proposal of an obesity classification based on weight history: an official document by the Brazilian Society of Endocrinology and Metabolism (SBEM) and the Brazilian Society for the Study of Obesity and Metabolic Syndrome (ABESO).

Obesity is a chronic disease associated with impaired physical and mental health. A widespread view in the treatment of obesity is that the goal is to normalize the individual's body mass index (BMI). However, a modest weight loss (usually above 5%) is already associated with clinical improvement, while weight losses of 10%-15% bring even further benefits, independent from the final BMI. The percentage of weight reduction is accepted as a treatment goal since a greater decrease in weight is frequently difficult to achieve due to metabolic adaptation along with environmental and lifestyle factors. In this document, the Brazilian Society of Endocrinology and Metabolism (SBEM) and the Brazilian Society for the Study of Obesity and Metabolic Syndrome (ABESO) propose a new obesity classification based on the maximum weight attained in life (MWAL). In this classification, individuals losing a specific proportion of weight are classified as having "reduced" or "controlled" obesity. This simple classification - which is not intended to replace others but to serve as an adjuvant tool - could help disseminate the concept of clinical benefits derived from modest weight loss, allowing individuals with obesity and their health care professionals to focus on strategies for weight maintenance instead of further weight reduction. In future studies, this proposed classification can also be an important tool to evaluate possible differences in therapeutic outcomes between individuals with similar BMIs but different weight trajectories.

Proposal of an obesity classification based on weight history: an official document by the Brazilian Society of Endocrinology and Metabolism (SBEM) and the Brazilian Society for the Study of Obesity and Metabolic Syndrome (ABESO)

ABSTRACT Obesity is a chronic disease associated with impaired physical and mental health. A widespread view in the treatment of obesity is that the goal is to normalize the individual's body mass index (BMI). However, a modest weight loss (usually above 5%) is already associated with clinical improvement, while weight losses of 10%-15% bring even further benefits, independent from the final BMI. The percentage of weight reduction is accepted as a treatment goal since a greater decrease in weight is frequently difficult to achieve due to metabolic adaptation along with environmental and lifestyle factors. In this document, the Brazilian Society of Endocrinology and Metabolism (SBEM) and the Brazilian Society for the Study of Obesity and Metabolic Syndrome (ABESO) propose a new obesity classification based on the maximum weight attained in life (MWAL). In this classification, individuals losing a specific proportion of weight are classified as having "reduced" or "controlled" obesity. This simple classification - which is not intended to replace others but to serve as an adjuvant tool - could help disseminate the concept of clinical benefits derived from modest weight loss, allowing individuals with obesity and their health care professionals to focus on strategies for weight maintenance instead of further weight reduction. In future studies, this proposed classification can also be an important tool to evaluate possible differences in therapeutic outcomes between individuals with similar BMIs but different weight trajectories.

Apoptosis rate and transcriptional response of pancreatic islets exposed to the PPAR gamma agonist Pioglitazone.

To explore the molecular pathways underlying thiazolidinediones effects on pancreatic islets in conditions mimicking normo- and hyperglycemia, apoptosis rate and transcriptional response to Pioglitazone at both physiological and supraphysiological glucose concentrations were evaluated. Adult rat islets were cultured at physiological (5.6 mM) and supraphysiological (23 mM) glucose concentrations in presence of 10 µM Pioglitazone or vehicle. RNA expression profiling was evaluated with the PancChip 13k cDNA microarray after 24-h, and expression results for some selected genes were validated by qRT-PCR. The effects of Pioglitazone were investigated regarding apoptosis rate after 24-, 48- and 72-h. At 5.6 mM glucose, 101 genes were modulated by Pioglitazone, while 1,235 genes were affected at 23 mM glucose. Gene networks related to lipid metabolism were identified as altered by Pioglitazone at both glucose concentrations. At 23 mM glucose, cell cycle and cell death pathways were significantly regulated as well. At 5.6 mM glucose, Pioglitazone elicited a transient reduction in islets apoptosis rate while at 23 mM, Bcl2 expression was reduced and apoptosis rate was increased by Pioglitazone. Our data demonstrate that the effect of Pioglitazone on gene expression profile and apoptosis rate depends on the glucose concentration. The modulation of genes related to cell death and the increased apoptosis rate observed at supraphysiological glucose concentration raise concerns about Pioglitazone's direct effects in conditions of hyperglycemia and reinforce the necessity of additional studies designed to evaluate TZDs effects on the preservation of ß-cell function in situations where glucotoxicity might be more relevant than lipotoxicity.

[Educational program to type 1 diabetes mellitus patients: basic topics]. / Pontos básicos de um programa de educação ao paciente com diabetes melito tipo 1.

Type 1 diabetes incidence has been increasing worldwide, however the vast majority of patients do not have a good glycaemic control. This review focuses on diabetes educational programs designed for children, young adults and their families, as well as regular pump users educational tips, collected from papers published between 2000 and 2007. A comprehensive review of the literature has identified 40 articles describing the methods and the evaluation of diabetes self-management education interventions. Three research questions are posed. First: what are the recommendations and standards for diabetes self-management education from the different diabetes institutions/associations? Second: is there sufficient evidence to recommend any adaptation of any particular program? And third: Are the educational programs effective in lowering glycated haemoglobin (HbA1c)? The patient and his family should be instructed and trained to take appropriate decisions for diabetes management regarding their daily care. Diabetes self-management education improves glicaemic control (both in an individual basis as well as in groups) in such a way that the longer the education training in diabetes the better is the effect on glycaemic control is.

Pontos básicos de um programa de educação ao paciente com diabetes melito tipo 1: [revisão] / Educational program to type 1 diabetes mellitus patients: basic topics: [review]

O número de portadores de diabetes melito tipo 1 (DM1) está aumentando globalmente, entretanto, a maior parte dos pacientes apresenta controle glicêmico insatisfatório. Esta revisão na literatura foi realizada com três questões de pesquisa: Quais as recomendações e diretrizes de educação em diabetes existentes? Existem evidências para recomendar a adaptação de determinado programa segundo a faixa etária dos pacientes? Os programas de educação são efetivos na melhora dos níveis de HbA1c? Foram revisados 40 artigos, publicados entre 2000 e 2007, sobre educação em DM1 em crianças, adolescentes, adultos e usuários de bomba de infusão contínua de insulina, além de incluir o resumo das diretrizes da IDF, da ADA, da SBD, da AADE, do IDC, e outras peculiaridades para o contexto de saúde pública e privada. O portador de diabetes e sua família devem ser treinados a fazer decisões efetivas de autocuidado em sua rotina diária. O aprimoramento do paciente no automanejo aproxima o valor da HbA1c ao adequado para sua faixa etária. A educação individual e a em grupo apresentam equivalência na melhora do controle metabólico. Existe uma correlação positiva entre o tempo de educação e o controle da glicemia.

Type 1 diabetes incidence has been increasing worldwide, however the vast majority of patients do not have a good glycaemic control. This review focuses on diabetes educational programs designed for children, young adults and their families, as well as regular pump users educational tips, collected from papers published between 2000 and 2007. A comprehensive review of the literature has identified 40 articles describing the methods and the evaluation of diabetes self-management education interventions. Three research questions are posed. First: what are the recommendations and standards for diabetes self-management education from the different diabetes institutions/associations? Second: is there sufficient evidence to recommend any adaptation of any particular program? And third: Are the educational programs effective in lowering glycated haemoglobin (HbA1c)? The patient and his family should be instructed and trained to take appropriate decisions for diabetes management regarding their daily care. Diabetes self-management education improves glicaemic control (both in an individual basis as well as in groups) in such a way that the longer the education training in diabetes the better is the effect on glycaemic control is.

Defining pancreatic endocrine precursors and their descendants.

OBJECTIVE: The global incidence of diabetes continues to increase. Cell replacement therapy and islet transplantation offer hope, especially for severely affected patients. Efforts to differentiate insulin-producing beta-cells from progenitor or stem cells require knowledge of the transcriptional programs that regulate the development of the endocrine pancreas. RESEARCH DESIGN AND METHODS: Differentiation toward the endocrine lineage is dependent on the transcription factor Neurogenin 3 (Neurog3, Ngn3). We utilize a Neurog3-enhanced green fluorescent protein knock-in mouse model to isolate endocrine progenitor cells from embryonic pancreata (embryonic day [E]13.5 through E17.5). Using advanced genomic approaches, we generate a comprehensive gene expression profile of these progenitors and their immediate descendants. RESULTS: A total of 1,029 genes were identified as being temporally regulated in the endocrine lineage during fetal development, 237 of which are transcriptional regulators. Through pathway analysis, we have modeled regulatory networks involving these proteins that highlight the complex transcriptional hierarchy governing endocrine differentiation. CONCLUSIONS: We have been able to accurately capture the gene expression profile of the pancreatic endocrine progenitors and their descendants. The list of temporally regulated genes identified in fetal endocrine precursors and their immediate descendants provides a novel and important resource for developmental biologists and diabetes researchers alike.

Incretins: clinical physiology and bariatric surgery--correlating the entero-endocrine system and a potentially anti-dysmetabolic procedure.

The digestive tract is well known for its endocrine functions. Recently, many studies have been reinforcing its role as a therapeutic target for both diabetes and obesity. Losing weight is clinically very difficult for most obese patients and the reason for this could be the effect of the physiological adipostatic system that triggers central nervous stimuli to compensate for variations in food intake and in physical activity. Gut hormones seem to have a key role in this complex, regulating body weight and satiety and contributing to glucose homeostasis. The enteroinsular axis appears to be impaired in both obese and diabetic patients. Recent data on bariatric surgery shows its striking effects on glucose control soon after the procedure, before a significant weight loss is achieved. The procedure appears to work beyond anti-obesity having a key metabolic impact possibly sharing a common mechanism with the new class of agents to treat type 2 diabetes mellitus: the incretin mimetics. This symposium discussed new data on the upcoming perspectives on both the pharmacological and the surgical approach to diabetes and obesity.