Related Experiment Video

Updated: Sep 8, 2026

Robotic Enucleation of an Intra-Pancreatic Insulinoma in the Pancreatic Head
00:05

Robotic Enucleation of an Intra-Pancreatic Insulinoma in the Pancreatic Head

Published on: January 3, 2020

An insulinoma without fasting hypoglycemia

R M Jordan, H Kammer

    The American Journal of the Medical Sciences
    |September 1, 1976
    PubMed

    More Related Videos

    Hyperglycemic Clamp and Hypoglycemic Clamp in Conscious Mice07:35

    Hyperglycemic Clamp and Hypoglycemic Clamp in Conscious Mice

    Published on: January 26, 2024

    Glucose-Stimulated Insulin Secretion via Perfusion through the Mice Vasculature with an Intact Pancreas04:41

    Glucose-Stimulated Insulin Secretion via Perfusion through the Mice Vasculature with an Intact Pancreas

    Published on: July 25, 2025

    Related Concept Videos

    Glucose Homeostasis: Pancreatic Islets and Insulin Secretion01:27

    Glucose Homeostasis: Pancreatic Islets and Insulin Secretion

    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.
    Insulin and C-peptide are co-secreted in...
    Insulin: Dosing Regimen and Adverse Effects01:16

    Insulin: Dosing Regimen and Adverse Effects

    Insulin-replacement therapy usually includes both long-acting insulin (basal) and short-acting insulin (to cater to postprandial needs). In a diverse group of type 1 diabetes patients, the average daily insulin dose is typically 0.5-0.7 units/kg body weight. However, obese patients and pubertal adolescents may need more due to insulin resistance.
    The basal dose constitutes about 40%-50% of the total daily dose, with the rest as premeal insulin. The mealtime insulin dose should mirror...
    Hypoglycemia and Glucagon01:15

    Hypoglycemia and Glucagon

    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...
    Type I Diabetes III: Clinical Manifestations01:19

    Type I Diabetes III: Clinical Manifestations

    Type 1 diabetes mellitus typically presents with rapid-onset symptoms due to the body’s inability to utilize glucose in the absence of insulin. Since insulin is required for glucose uptake into cells, its deficiency leads to hyperglycemia and cellular energy deprivation, resulting in characteristic clinical features.Polyuria and PolydipsiaOne of the earliest, most prominent symptoms is polyuria (excessive urination). When blood glucose concentrations rise above the renal threshold, the kidneys...
    Hypoglycemia01:26

    Hypoglycemia

    Hypoglycemia is a blood glucose level below 70 mg/dL. It commonly occurs in individuals using insulin or insulin-secreting drugs, but may also arise in non-diabetic conditions. People with type 1 diabetes are at the highest risk because they depend on exogenous insulin. People with type 2 diabetes are also at risk, especially when treated with insulin or medications such as sulfonylureas, which increase insulin release regardless of blood glucose levels. It develops when insulin levels exceed...
    Hyperglycemia01:29

    Hyperglycemia

    Hyperglycemia is an abnormally high blood glucose level. It is diagnosed by fasting glucose ≥126 mg/dL, 2-hour oral glucose tolerance test (or OGTT) ≥200 mg/dL, random glucose ≥200 mg/dL with symptoms, or HbA1c ≥6.5%. However, HbA1c results may be unreliable in certain conditions, such as anemia or hemoglobinopathies, and the diagnosis should be confirmed unless classic symptoms are present. Postprandial hyperglycemia is typically considered significant when glucose levels exceed 180 mg/dL two...