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Related Concept Videos

Diabetes Mellitus: Overview and Type I Subtype01:22

Diabetes Mellitus: Overview and Type I Subtype

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Diabetes mellitus is a chronic metabolic disorder characterized by high blood glucose levels due to inadequate insulin production, insulin resistance, or both. The condition affects millions worldwide and can significantly impact their health and quality of life.
Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the body is unable to produce sufficient insulin, and individuals with...
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Pathophysiology of Diabetes01:20

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Diabetes mellitus is a chronic metabolic disorder characterized by hyperglycemia. The four categories of diabetes are type 1 diabetes, type 2 diabetes, other specific types of diabetes, and gestational diabetes.
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
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Diabetes: Symptoms, Diagnosis, and Complications01:15

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For most patients, experiencing several weeks of polyuria, polydipsia, fatigue, and significant weight loss may indicate the presence of diabetes. Furthermore, adults displaying the phenotypic appearance of type 2 diabetes (particularly those who are obese and not initially insulin-requiring), may have islet cell autoantibodies, suggesting autoimmune-mediated β cell destruction and a diagnosis of latent autoimmune diabetes of adults (LADA). The categorization of glucose homeostasis is...
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Autoimmune Disorders01:29

Autoimmune Disorders

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Autoimmune diseases are a group of disorders in which the body's immune system mistakenly attacks its own cells, tissues, and organs. This results from an overactive immune response against substances and tissues normally present in the body. Let's delve into the concept and mechanism of autoimmune diseases from an immune system point of view, explore different causes and examples of such diseases, and discuss potential solutions.
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Diabetes: Management and Pharmacotherapy01:15

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The therapy for diabetes aims to alleviate hyperglycemia-related symptoms, prevent acute metabolic decompensation, and reduce chronic end-organ complications. Glycemic control is evaluated through short-term (self-monitoring, continuous glucose monitoring) and long-term (A1c, fructosamine) metrics, enabling near real-time tracking of blood glucose levels and reflecting glycemic control over specific time frames.
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Accelerated Type 1 Diabetes Induction in Mice by Adoptive Transfer of Diabetogenic CD4+ T Cells
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Type 1 Diabetes: A Guide to Autoimmune Mechanisms for Clinicians.

François-Xavier Mauvais1,2, Peter M van Endert1,3

  • 1Université Paris Cité, INSERM, CNRS, Institut Necker Enfants Malades, Paris, France.

Diabetes, Obesity & Metabolism
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Type 1 diabetes (T1D) is an autoimmune disease where the body attacks insulin-producing beta cells. Genetic and environmental factors trigger T1D, necessitating lifelong insulin therapy, but new treatments aim to prevent or reverse the condition.

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cellular researchisletsmouse modeltype 1 diabetes

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Area of Science:

  • Immunology
  • Endocrinology
  • Genetics

Background:

  • Type 1 diabetes (T1D) is an autoimmune disease characterized by the destruction of pancreatic beta cells by autoreactive T lymphocytes, leading to insulin deficiency.
  • Genetic predisposition, often involving human leukocyte antigens (HLA), and environmental triggers like enteroviral infections contribute to T1D pathogenesis.
  • The disease progresses silently through stages, marked by autoantibodies and declining beta cell function before overt symptoms of hyperglycemia appear.

Purpose of the Study:

  • To summarize current knowledge on immune cell and beta cell dysfunction in Type 1 diabetes (T1D) pathogenesis.
  • To highlight the interplay of genetic and environmental factors in T1D development.
  • To discuss emerging therapeutic strategies targeting the immune system, beta cells, or the gut microbiome.

Main Methods:

  • Review of current scientific literature on T1D pathogenesis.
  • Analysis of high-dimensional genomic and proteomic studies.
  • Examination of human pancreas organ studies and immune cell profiling.

Main Results:

  • T1D involves autoimmune destruction of beta cells, influenced by a complex interplay of genetic susceptibility (e.g., HLA variants) and environmental factors (e.g., viral infections, gut microbiome).
  • Disease progression is characterized by autoantibody presence and impaired beta cell function, with varying patterns observed in different age groups.
  • Advanced technologies are providing deeper mechanistic insights into T1D, facilitating the development of novel therapeutic approaches.

Conclusions:

  • Type 1 diabetes (T1D) is a multifactorial autoimmune disease with significant genetic and environmental influences.
  • Current treatments focus on insulin replacement, but future therapies aim to prevent, reverse, or halt disease progression by targeting the immune system or restoring beta cell function.
  • Continued research into T1D pathogenesis, including the role of the gut microbiome and environmental exposures, is crucial for developing innovative and curative strategies.