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Related Concept Videos

Hypoglycemia and Glucagon01:15

Hypoglycemia and Glucagon

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Without prolonged fasting, healthy individuals maintain blood glucose levels above 3.5 mM due to a well-adapted neuroendocrine counterregulatory system that effectively prevents acute hypoglycemia, a potentially life-threatening condition. The primary clinical scenarios for hypoglycemia encompass diabetes treatment, inappropriate production of endogenous insulin or insulin-like substances by tumors, and the use of glucose-lowering agents in non-diabetic individuals. Notably, hypoglycemia in the...
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Diabetes Mellitus: Overview and Type I Subtype01:22

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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.
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Type 2 diabetes, characterized by insulin resistance, arises when the insulin receptors on cells lose responsiveness to insulin, diminishing the cell's capacity to take up glucose, resulting in elevated blood glucose levels. To receive a diagnosis of Type 2 diabetes, a series of blood glucose tests are necessary to assess whether the blood glucose falls within normal parameters. If the result is out of the normal range, a patient may be diagnosed as prediabetic or diabetic, depending on the...
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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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Glucose Homeostasis: Pancreatic Islets and Insulin Secretion01:27

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The pancreatic islets comprising only 1%-2% of the volume are highly vascularized and innervated mini-organs. They contain five endocrine cell types, including β cells that secrete insulin, which is synthesized as a single polypeptide chain, preproinsulin, processed to proinsulin, and finally to insulin and C-peptide. This process is complex and regulated, involving the Golgi complex, the endoplasmic reticulum, and the secretory granules of the β cell.
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Glucose transporters facilitate the transport of glucose across the cell membrane. In addition to glucose, some glucose transporters can also aid the movement of other hexoses such as fructose, mannose, and galactose.
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Updated: Dec 25, 2025

Biochemical Titration of Glycogen In vitro
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Persistent hypoglycemia: Glycogen storage disease type Ib.

Michael J Rabener1, Christopher M Howell

  • 1Michael J. Rabener is program director of the US Air Force's Emergency Medicine PA Doctor of Science Residency at San Antonio (Tex.) Military Medical Center. Christopher M. Howell is an associate professor in the PA program at Kettering (Ohio) College. The authors have disclosed no potential conflicts of interest, financial or otherwise.

JAAPA : Official Journal of the American Academy of Physician Assistants
|March 29, 2020
PubMed
Summary
This summary is machine-generated.

Glycogen storage disease can cause severe hypoglycemia. Prompt diagnosis and management are crucial, especially when initial treatments are ineffective, to differentiate it from hyperglycemia.

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Area of Science:

  • Biochemistry
  • Pediatrics
  • Genetics

Background:

  • Glycogen storage diseases (GSDs) are inherited metabolic disorders affecting glycogen synthesis or degradation.
  • These conditions can lead to severe hypoglycemia, particularly in infants and children.
  • Understanding GSDs is critical for managing acute metabolic crises.

Observation:

  • This case report details a patient experiencing acute distress due to hypoglycemia.
  • The patient's condition did not improve with initial standard interventions.
  • Symptoms of hypoglycemia can mimic other serious conditions like severe hyperglycemia.

Findings:

  • A thorough patient history and physical examination are paramount for accurate diagnosis.
  • Differentiating hypoglycemia from hyperglycemia is essential for appropriate therapeutic strategies.
  • Timely and correct diagnosis prevents severe complications associated with metabolic disorders.

Implications:

  • Early recognition and intervention in GSDs can prevent life-threatening hypoglycemic events.
  • This case highlights the importance of comprehensive diagnostic approaches in rare metabolic diseases.
  • Improved diagnostic protocols can lead to better patient outcomes in glycogen storage disease management.