Related Experiment Video

Updated: Oct 13, 2026

Measurement of Differentially Methylated INS DNA Species in Human Serum Samples as a Biomarker of Islet β Cell Death
10:34

Measurement of Differentially Methylated INS DNA Species in Human Serum Samples as a Biomarker of Islet β Cell Death

Published on: December 21, 2016

Post-mortem glycosylated hemoglobin (HbA1c): evidence for a history of diabetes mellitus

C Chen, S Glagov, M Mako

    Annals of Clinical and Laboratory Science
    |September 1, 1983
    PubMed

    Glycosylated hemoglobin (HbA1c) levels on blood obtained from 28 cadavers were compared with that of healthy volunteers and patients with diabetes mellitus. Levels of HbA1c did not correlate with post-mortem intervals of four to 36 hours, suggesting that HbA1c is stable under these conditions. All deceased with a history of diabetes mellitus, five cases, had an elevated post-mortem blood HbA1c. Twenty-three deceased had a negative history for diabetes mellitus and seven of this group had an elevated HbA1c. These seven cases had diagnosis of malignancies and a history of prolonged exposure to steroids in excess compared to the remaining 16 cases.

    More Related Videos

    A Mouse Model of Hemorrhagic Transformation Induced by Acute Hyperglycemia Combined with Transient Focal Ischemia09:35

    A Mouse Model of Hemorrhagic Transformation Induced by Acute Hyperglycemia Combined with Transient Focal Ischemia

    Published on: November 15, 2024

    Glycemic Impact on Knee Osteoarthritis Symptoms on Physical, Radiographic, and Inflammatory Markers among Individuals Aged 50 and Over with Diabetes07:22

    Glycemic Impact on Knee Osteoarthritis Symptoms on Physical, Radiographic, and Inflammatory Markers among Individuals Aged 50 and Over with Diabetes

    Published on: March 7, 2025

    Related Concept Videos

    Diabetes Mellitus: Introduction01:26

    Diabetes Mellitus: Introduction

    Diabetes mellitus consists of chronic metabolic disorders characterized by persistent hyperglycemia. This elevated blood glucose results from defects in insulin secretion, impaired insulin action, or both. Insulin, produced by pancreatic β-cells, is essential for maintaining glucose homeostasis by facilitating cellular glucose uptake for energy or storage. Disruptions in insulin production or function lead to glucose accumulation in the bloodstream, causing the clinical features and long-term...
    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...
    Type II Diabetes II: Pathophysiology01:24

    Type II Diabetes II: Pathophysiology

    PathophysiologyType 2 diabetes mellitus (T2DM ) is a chronic metabolic disorder characterized by insulin resistance and progressive pancreatic β-cell dysfunction, leading to impaired glucose homeostasis. It results from interactions among genetic predisposition, environmental factors, and metabolic stressors, such as overnutrition and a sedentary lifestyle.Insulin Resistance and Glucose DysregulationEarly T2DM involves insulin resistance in skeletal muscle, adipose tissue, and the liver.
    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...
    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...