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Related Concept Videos

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...
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...
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...
Overview of Carbohydrate Metabolism01:19

Overview of Carbohydrate Metabolism

Carbohydrate metabolism is a fundamental biochemical process that ensures a constant supply of energy to living cells. The most important carbohydrate is glucose, which can be broken down via glycolysis to enter into the Krebs cycle and eventually lead to the production of ATP through oxidative phosphorylation.
Glucose transport into cells is facilitated by a family of transport proteins called GLUT (Glucose Transporters). GLUT4 is the primary glucose transporter for insulin-stimulated glucose...
Diabetes Mellitus: Type 2 and Gestational01:22

Diabetes Mellitus: Type 2 and Gestational

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...
Dosage Regimen: Individualization01:24

Dosage Regimen: Individualization

Individualization in dosing regimens is the customization of medication doses for individual patients. Its necessity arises from the goal of maximizing therapeutic benefits while minimizing risks. This approach is pivotal because human responses to drugs can vary widely; what is effective for one person may be inadequate or excessive for another. Interpatient (intersubject) variability refers to differences in drug responses between individuals, while intrapatient (intrasubject) variability...

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Hyperglycemic Clamp and Hypoglycemic Clamp in Conscious Mice
07:35

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Published on: January 26, 2024

Glycemic variability is complex--is glucose complexity variable?

Roosmarijn T M van Hooijdonk, Ameen Abu-Hanna, Marcus J Schultz

    Critical Care (London, England)
    |November 23, 2012
    PubMed
    Summary
    This summary is machine-generated.

    Minimizing glycemic variability in critically ill patients is a potential treatment target. However, continuous glucose monitoring did not reduce this variability, though it may offer insights into glucose complexity and mortality risk.

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    Area of Science:

    • Critical Care Medicine
    • Endocrinology
    • Medical Technology

    Background:

    • Observational studies link increased glycemic variability to higher mortality in critically ill patients.
    • Glycemic control strategies are evolving, with glycemic variability emerging as a potential therapeutic target.
    • Effective glucose monitoring is crucial for managing critically ill patients.

    Purpose of the Study:

    • To evaluate if real-time subcutaneous continuous glucose monitoring (CGM) can decrease glycemic variability in critically ill patients.
    • To explore the relationship between CGM-derived glucose complexity and mortality risk in this population.

    Main Methods:

    • Prospective observational study involving critically ill patients.
    • Utilized real-time subcutaneous continuous glucose monitoring (CGM) for glucose level assessment.
    • Analyzed glycemic variability and glucose complexity metrics from CGM data.

    Main Results:

    • Real-time subcutaneous continuous glucose monitoring (CGM) did not significantly decrease glycemic variability.
    • CGM revealed changes in glucose complexity, with both increased and decreased complexity associated with higher mortality.
    • The study highlights the potential of glucose complexity as a novel biomarker.

    Conclusions:

    • Current real-time subcutaneous CGM may not be effective in reducing glycemic variability in critically ill patients.
    • Glucose complexity, as assessed by CGM, warrants further investigation as a predictor of mortality in critical care.
    • Future research should focus on refining glucose monitoring and control strategies for critically ill populations.