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Related Concept Videos

Glucose Homeostasis: Regulation of Blood Glucose01:02

Glucose Homeostasis: Regulation of Blood Glucose

Carbohydrates consumed through foods are converted into glucose, a crucial energy source for the body. In the prandial state, high blood glucose levels stimulate the secretion of insulin from the pancreas. Insulin inhibits hepatic glucose production and stimulates glucose uptake and metabolism by muscle and adipose tissue. The excess glucose is converted into glycogen and stored in the liver and muscles.
During fasting, when blood glucose levels are low, the pancreas secretes glucagon. it...
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...
Hormones Regulating Blood Glucose01:16

Hormones Regulating Blood Glucose

Insulin is released by beta cells of the pancreas when blood glucose levels are high. It facilitates glucose absorption and utilization in insulin-dependent cells with insulin receptors on their plasma membranes. Insulin promotes glucose uptake by increasing the number of glucose transport proteins in the cell membrane, allowing glucose to enter the cell. As a result, glucose utilization and ATP production are enhanced.
In addition to accelerating glucose uptake and utilization, insulin has...
Variability: Analysis01:11

Variability: Analysis

Measures of variability are statistical metrics that reveal the dispersion pattern within a dataset. They are pivotal in biostatistics, providing insights into the heterogeneity within health and biological data. Variability signifies the degree to which data points diverge from one another, helping researchers understand the potential range of values and associated uncertainty within the data.
The range is a simple measure of variability, indicating the difference between the highest and...
Blood Studies I: ABG and VBG01:26

Blood Studies I: ABG and VBG

Blood studies are critical in the medical field, enabling healthcare professionals to assess a patient's health status accurately. This page will focus on two significant blood studies: Arterial Blood Gas (ABG) and Venous Blood Gas (VBG).
Arterial Blood Gas (ABG)
Arterial Blood Gas (ABG) studies are crucial for assessing the lungs' ability to supply oxygen and remove carbon dioxide, reflecting the patient's ventilation status. They also help understand the kidneys' capacity to reabsorb or...
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...

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Related Experiment Video

Updated: May 28, 2026

A Method for Manipulating Blood Glucose and Measuring Resulting Changes in Cognitive Accessibility of Target Stimuli
08:01

A Method for Manipulating Blood Glucose and Measuring Resulting Changes in Cognitive Accessibility of Target Stimuli

Published on: August 12, 2016

Exploring blood glucose variation over geographical space.

Sean T Doherty1

  • 1Department of Geography & Environmental Studies, Wilfrid Laurier University, Waterloo, Ontario, Canada. sdoherty@wlu.ca

Diabetes Technology & Therapeutics
|October 29, 2011
PubMed
Summary

Daily activities and locations significantly impact blood glucose levels in type 2 diabetes patients. Understanding these spatial correlations can help manage diabetes by identifying high-risk areas.

Area of Science:

  • Medical Informatics
  • Diabetes Research
  • Geographic Information Systems

Background:

  • Type 2 diabetes mellitus is linked to lifestyle factors, but daily environmental interactions affecting blood glucose remain understudied due to data collection challenges.
  • Understanding real-life activities and their impact on blood glucose fluctuations is crucial for diabetes management.

Purpose of the Study:

  • To present a novel data collection system for exploring spatial correlates of blood glucose fluctuation.
  • To investigate the relationship between daily activities, location, and blood glucose variability in type 2 diabetes patients.

Main Methods:

  • Developed an automated system integrating a Global Positioning System (GPS) receiver with a continuous blood glucose monitor.
  • Collected second-by-second activity data and blood glucose measurements every 5 minutes over 72 hours in 40 patients.

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Simple Continuous Glucose Monitoring in Freely Moving Mice
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Simple Continuous Glucose Monitoring in Freely Moving Mice

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Characterization of Metabolic Status in Nonhuman Primates with the Intravenous Glucose Tolerance Test
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Characterization of Metabolic Status in Nonhuman Primates with the Intravenous Glucose Tolerance Test

Published on: November 13, 2016

Related Experiment Videos

Last Updated: May 28, 2026

A Method for Manipulating Blood Glucose and Measuring Resulting Changes in Cognitive Accessibility of Target Stimuli
08:01

A Method for Manipulating Blood Glucose and Measuring Resulting Changes in Cognitive Accessibility of Target Stimuli

Published on: August 12, 2016

Simple Continuous Glucose Monitoring in Freely Moving Mice
03:25

Simple Continuous Glucose Monitoring in Freely Moving Mice

Published on: February 24, 2023

Characterization of Metabolic Status in Nonhuman Primates with the Intravenous Glucose Tolerance Test
06:59

Characterization of Metabolic Status in Nonhuman Primates with the Intravenous Glucose Tolerance Test

Published on: November 13, 2016

  • Utilized Geographic Information System (GIS) software to generate blood glucose maps and analyze spatial correlations.

    • Main Results:

    • Individual blood glucose variation maps showed distinct patterns associated with specific locations and distances from home.
    • Significant correlations were found between location, distance from home, and blood glucose variation, though the effects were mixed.
    • Identified 'anchor points' in patients' lives associated with distinct blood glucose levels.

    Conclusions:

    • Blood glucose levels are highly correlated with space and location, suggesting these as lifestyle-related risk factors for diabetes.
    • Individualized visualization tools could help patients and caregivers identify and manage problematic locations affecting blood glucose control.