insulin resistance tagged posts

Stress hormone timing creates a different kind of obesity, study suggests

histology of liver tissue
Liver tissue from mice after 60 days of treatment. From left to right: control, glucocorticoid-rhythm flattening, and high-fat diet. The top row shows H&E-stained liver tissue, while red staining in the bottom row marks fat in the liver. Mice with flattened glucocorticoid rhythms on a standard diet displayed minimal liver fat compared with mice fed a high-fat diet, despite similar obesity. Scale bar, 100 µm. Credit: Teruel Lab

Obesity caused by disrupted stress-hormone rhythms is metabolically very different from obesity caused by a high-fat diet, according to a new preclinical study by Weill Cornell Medicine investigators...

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Simple insulin resistance test may also predict cognitive decline in Alzheimer’s patients

blood test
Credit: Artem Podrez from Pexels

Insulin resistance detected by routine triglyceride-glucose (TyG) index can flag people with early Alzheimer’s who are four times more likely to present rapid cognitive decline, according to new research presented at the European Academy of Neurology (EAN) Congress 2025.

Neurologists at the University of Brescia reviewed records of 315 non-diabetic patients with cognitive deficits, including 200 with biologically confirmed Alzheimer’s disease. All subjects underwent an assessment of insulin resistance using the TyG index and a clinical follow-up of three years.

The work is published in the journal Alzheimer’s & Dementia.

When patients were divided according to the TyG index, those in the highest third of the Mild Cognitive Impairment AD subgrou...

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Newly discovered mechanism of mitochondrial dysfunction in obesity may drive insulin resistance and type 2 diabetes

Mitochondria within liver cells from obese mice show signs of dysfunction by producing excessive reactive oxygen species (red), which is harmful and contributes to insulin resistance and type 2 diabetes. Image courtesy of Renata Goncalves.

A newly discovered mechanism that leads to liver dysfunction may be a key factor in type 2 diabetes and other metabolic disorders in individuals with obesity, according to a new study led by Harvard T.H. Chan School of Public Health.

The dysfunction identified—dysregulated hepatic coenzyme Q metabolism—leads to excessive reactive oxygen species (ROS) produced by mitochondria at a single specific site in an enzyme called complex I. The researchers say the discovery offers a potential path for new, precise treatments for metabolic diseases.

“Our findings provide the first step toward solving a complex problem in the field of metabolic disease research that has stood for three decades,” said corresponding author Gökhan S...

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Eating Red Meat may Increase your Risk of Type 2 Diabetes—not a lot of people know that

packaged meat
Credit: Pixabay/CC0 Public Domain

Red meat has been a part of diets worldwide since early man. It is an excellent source of protein, vitamins (such as B vitamins) and minerals (such as iron and zinc). However, red meat has long been associated with increasing the risk of heart disease, cancer and early death. What may not be so well known is the link between red meat consumption and type 2 diabetes.

A paper published in The Lancet in September 2024 highlighted this link to type 2 diabetes using data from the Americas, the Mediterranean, Europe, south-east Asia and the Western Pacific (20 countries included).

This recent study, with nearly 2 million participants, found that high consumption of unprocessed red meat, such as beef, lamb and pork, and processed meat, such as bacon, sa...

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