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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...
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...
Oral Hypoglycemic Agents: α-Glucosidase Inhibitors01:19

Oral Hypoglycemic Agents: α-Glucosidase Inhibitors

α-glucosidase inhibitors, including acarbose (Precose), miglitol (Glyset), and voglibose (Voglib) (primarily available in Asia), are drugs that control blood sugar levels by delaying the digestion of starch and disaccharides. They achieve this by inhibiting α-glucosidase enzymes in the intestine, which slow the absorption of carbohydrates in the intestine, which in turn leads to a prolonged release of the glucoregulatory hormone GLP-1 from intestinal L-cells.
Acarbose and miglitol are typically...
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...
Type II Diabetes Mellitus III: Clinical Manifestations and Diagnosis01:25

Type II Diabetes Mellitus III: Clinical Manifestations and Diagnosis

Type 2 diabetes mellitus develops gradually and is often asymptomatic in early stages.Clinical ManifestationsWhen symptoms appear, they include fatigue, blurred vision, pruritus, delayed wound healing, and recurrent infections, particularly candidal infections. Peripheral neuropathy may present as numbness or tingling in the extremities. Classic hyperglycemia symptoms—polyuria, polydipsia, and polyphagia—are less common. Most patients are overweight and frequently have associated hypertension...
Diabetic Neuropathy01:22

Diabetic Neuropathy

DefinitionDiabetic neuropathy is nerve damage caused by long-standing diabetes mellitus. It results directly from prolonged high blood sugar levels.PathophysiologyThe pathophysiology of diabetic neuropathy involves both metabolic and vascular disturbances triggered by chronic hyperglycemia.Metabolic injury: Elevated glucose levels activate the polyol pathway within nerve cells, leading to the accumulation of sorbitol and fructose. This increases oxidative stress, disrupts normal nerve...

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Related Experiment Video

Updated: Jun 14, 2026

Osmotic Minipump Implantation for Increasing Glucose Concentration in Mouse Cerebrospinal Fluid
06:21

Osmotic Minipump Implantation for Increasing Glucose Concentration in Mouse Cerebrospinal Fluid

Published on: April 7, 2023

Aglycosuric Diabetes.

W B Spaulding, W O Spitzer, P W Truscott

    Canadian Medical Association Journal
    |March 24, 2010
    PubMed
    Summary
    This summary is machine-generated.

    Urine glucose tests miss many mild diabetes mellitus cases. Routine blood glucose testing is essential for early diabetes detection, especially in elderly patients with elevated renal thresholds.

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    Alternate Immersion in Glucose to Produce Prolonged Hyperglycemia in Zebrafish
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    Alternate Immersion in Glucose to Produce Prolonged Hyperglycemia in Zebrafish

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    Osmotic Minipump Implantation for Increasing Glucose Concentration in Mouse Cerebrospinal Fluid
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    Published on: April 7, 2023

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    Alternate Immersion in Glucose to Produce Prolonged Hyperglycemia in Zebrafish
    05:49

    Alternate Immersion in Glucose to Produce Prolonged Hyperglycemia in Zebrafish

    Published on: May 5, 2021

    Area of Science:

    • Endocrinology
    • Clinical Diagnostics
    • Public Health

    Background:

    • Diabetes mellitus is a significant global health concern.
    • Early detection of diabetes mellitus is crucial for effective management and prevention of complications.
    • Current diagnostic methods include urine and blood glucose tests.

    Purpose of the Study:

    • To compare the effectiveness of urine glucose tests versus blood glucose determinations in detecting diabetes mellitus.
    • To identify patient subgroups missed by urine testing alone.

    Main Methods:

    • A study involving 2000 medical outpatients was conducted.
    • Urine glucose levels and blood glucose levels were measured for all participants.
    • Diagnostic accuracy of each method was compared against confirmed diabetes mellitus cases.

    Main Results:

    • Eighty-five out of 2000 patients were diagnosed with diabetes mellitus.
    • 33 diabetic patients (38.8%) had no detectable glucose in their urine during initial screening.
    • 15 out of 30 newly discovered diabetics (50%) would have been missed if only urine tests were used.

    Conclusions:

    • Urine glucose testing is insufficient for detecting all cases of diabetes mellitus, particularly mild or asymptomatic forms.
    • Elderly patients with mild diabetes mellitus often have elevated renal thresholds, leading to aglycosuria despite hyperglycemia.
    • Routine blood glucose testing is recommended for comprehensive diabetes mellitus screening and early diagnosis.