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Type 1 diabetes (T1D), formerly known as juvenile diabetes, is an autoimmune disease that occurs when the body's immune system destroys pancreatic cells (beta cells). [5] In healthy persons, beta cells produce insulin. Insulin is a hormone required by the body to store and convert blood sugar into energy. [6]
Diabetes mellitus type 1 is caused by insufficient or non-existent production of insulin, while type 2 is primarily due to a decreased response to insulin in the tissues of the body (insulin resistance). Both types of diabetes, if untreated, result in too much glucose remaining in the blood (hyperglycemia) and many
Prediabetes –; Main types of diabetes: Type 1 diabetes – disease that results in autoimmune destruction of insulin-producing beta cells of the pancreas. [4]Type 2 diabetes – metabolic disorder that is characterized by high blood glucose in the context of insulin resistance and relative insulin deficiency.
Firstly, the full-length GLP-1 (1–37) was found to be catalysed by endopeptidase to the biologically active GLP-1 (7–37). Secondly, the glycine corresponding to proglucagon (108) was found to serve as a substrate for amidation of the C-terminal arginine resulting in the equally potent GLP-1 (7–36) amide. In humans, almost all (>80% ...
Maturity-onset diabetes of the young (MODY) refers to any of several hereditary forms of diabetes mellitus caused by mutations in an autosomal dominant gene disrupting insulin production. [1] Along with neonatal diabetes , MODY is a form of the conditions known as monogenic diabetes.
Glucose in the body increases after food consumption. This is primarily due to carbohydrate intake, but to a much lesser degree protein intake ( [1] )( [2] ). Depending on the tissue type, the glucose enters the cell through facilitated diffusion or active transport.
Diabetes mellitus can be experimentally induced in vivo for research purposes by streptozotocin [34] or alloxan, [35] which are specifically toxic to beta cells. Mouse and rat models of diabetes also exist including ob/ob and db/db mice which are a type 2 diabetes model, and non-obese diabetic mice (NOD) which are a model for type 1 diabetes. [36]
There are about 1 million islets distributed throughout the pancreas of a healthy adult human. While islets vary in size, the average diameter is about 0.2 mm. [5]:928 Each islet is separated from the surrounding pancreatic tissue by a thin, fibrous, connective tissue capsule which is continuous with the fibrous connective tissue that is interwoven throughout the rest of the pancreas.