Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

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...
Diabetes: Symptoms, Diagnosis, and Complications01:15

Diabetes: Symptoms, Diagnosis, and Complications

For most patients, experiencing several weeks of polyuria, polydipsia, fatigue, and significant weight loss may indicate the presence of diabetes. Furthermore, adults displaying the phenotypic appearance of type 2 diabetes (particularly those who are obese and not initially insulin-requiring), may have islet cell autoantibodies, suggesting autoimmune-mediated β cell destruction and a diagnosis of latent autoimmune diabetes of adults (LADA). The categorization of glucose homeostasis is based on...
Confounding in Epidemiological Studies01:27

Confounding in Epidemiological Studies

Confounding in statistical epidemiology represents a pivotal challenge, referring to the distortion in the perceived relationship between an exposure and an outcome due to the presence of a third variable, known as a confounder. This variable is associated with both the exposure and the outcome but is not a direct link in their causal chain. Its presence can lead to erroneous interpretations of the exposure's effect, either exaggerating or underestimating the true association. This phenomenon...
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.
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...
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...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Donor noradrenaline use is associated with better allograft survival in recipients of pancreas transplantation.

Annals of the Royal College of Surgeons of England·2023
Same author

Risk of major cardiovascular events in patients with psoriasis receiving biologic therapies: a prospective cohort study.

Journal of the European Academy of Dermatology and Venereology : JEADV·2019
Same author

Long-Term Endurance and Power Training May Facilitate Motor Unit Size Expansion to Compensate for Declining Motor Unit Numbers in Older Age.

Frontiers in physiology·2019
Same author

Assessing the severity of Type 2 diabetes using clinical data-based measures: a systematic review.

Diabetic medicine : a journal of the British Diabetic Association·2019
Same author

Risk factor control and outpatient attendance in young adults with diabetes.

Acta diabetologica·2018
Same author

Developing a foot ulcer risk model: what is needed to do this in a real-world primary care setting?

Diabetic medicine : a journal of the British Diabetic Association·2018

Related Experiment Video

Updated: May 20, 2026

A Zebrafish Model of Diabetes Mellitus and Metabolic Memory
10:03

A Zebrafish Model of Diabetes Mellitus and Metabolic Memory

Published on: February 28, 2013

Low HbA1c and mortality: causation and confounding.

M K Rutter1

  • 1Cardiovascular Research Group, School of Biomedicine, University of Manchester, Core Technology Facility, 46 Grafton Street, Manchester M13 9NT, UK. Martin.Rutter@manchester.ac.uk

Diabetologia
|July 19, 2012
PubMed
Summary

Low or lowered hemoglobin A1c (HbA1c) levels are linked to increased mortality in both general and diabetic populations. This commentary explores this association and its modification by body mass index (BMI) in type 2 diabetes.

Related Experiment Videos

Last Updated: May 20, 2026

A Zebrafish Model of Diabetes Mellitus and Metabolic Memory
10:03

A Zebrafish Model of Diabetes Mellitus and Metabolic Memory

Published on: February 28, 2013

Area of Science:

  • Endocrinology
  • Epidemiology
  • Cardiovascular Medicine

Background:

  • Observational studies and clinical trials indicate a link between low or lowered hemoglobin A1c (HbA1c) and increased total and cardiovascular disease (CVD) mortality.
  • This association is observed in the general population and specifically in patients with diabetes.

Purpose of the Study:

  • To provide an overview of the clinically significant data connecting low HbA1c levels to increased mortality.
  • To frame the interpretation of epidemiological data regarding HbA1c and mortality.
  • To discuss the clinical implications and highlight future research directions.

Main Methods:

  • Review and synthesis of existing epidemiological data from observational studies and clinical trials.
  • Analysis of the relationship between HbA1c levels and mortality outcomes.
  • Consideration of potential modifying factors, such as body mass index (BMI).

Main Results:

  • Evidence suggests that both low and lowered HbA1c levels are associated with elevated total and CVD mortality.
  • The commentary sets the context for research suggesting BMI may modify the HbA1c-mortality relationship in type 2 diabetes.

Conclusions:

  • The relationship between HbA1c levels and mortality is complex and warrants careful interpretation.
  • Understanding the influence of factors like BMI is crucial for clinical practice in diabetes management.
  • Further research is needed to fully elucidate these associations and their clinical implications.