Father’s Nicotine Use Linked to Increased Diabetes Risk in Offspring, Mouse Study Finds

A recent study published in the Journal of the Endocrine Society reveals that nicotine exposure in male mice can lead to metabolic changes in their offspring, potentially increasing the risk of diabetes. This research highlights the possible long-term health consequences of paternal tobacco use on descendants.

Nicotine Exposure Alters Offspring’s Sugar Metabolism

Researchers at the University of California, Santa Cruz, led by Dr Raquel Chamorro-Garcia, Ph.D., investigated the effects of nicotine consumption in male mice on their progeny. Male mice were given nicotine in their drinking water, and their offspring were monitored and compared to a control group whose fathers were not exposed to nicotine.

The study found that female offspring of nicotine-exposed males exhibited lower insulin and fasting glucose levels compared to controls. Male offspring showed reduced blood glucose levels and altered liver function, which are significant because metabolic dysfunction-associated steatotic liver disease can develop from obesity and diabetes.

Implications for Human Health and Preconception Care

With diabetes affecting over 40 million people in the United States alone, according to the U.S. Centers for Disease Control and Prevention, and linked to serious complications such as heart disease and kidney damage, understanding risk factors is critical. Tobacco use remains a leading preventable cause of adverse health outcomes, and men consume more tobacco products than women, making this research particularly relevant.

Chamorro-Garcia emphasised the importance of considering male health in preconception care, stating, “Considering the evidence that male exposure can increase the likelihood of their children developing chronic diseases, it is crucial to incorporate male health into preconception care.” She added, “Our findings suggest fathers’ use of tobacco products may have lasting effects on their children’s health.”

Nicotine Alone Responsible for Metabolic Changes

Unlike many studies that focus on the complex mixture of chemicals in tobacco products, this research isolated nicotine as the factor causing metabolic alterations. Since the mice were exposed to pure nicotine, the study indicates that byproducts in cigarettes or additives in e-cigarettes were not responsible for the observed effects.

The research team included Stephanie Aguiar, Truman Natividad, Daniel Davis, and Carlos Diaz-Castillo, all affiliated with UC Santa Cruz. Funding was provided by the National Institutes of Health’s National Institute of Environmental Health Sciences, the University of California Office of the President Tobacco-related Disease Research Program award, and UC Santa Cruz Start-up Funds.

This study adds to growing evidence that paternal lifestyle factors can influence offspring health outcomes, underscoring the need for broader public health strategies addressing tobacco use among men.

Source: The Endocrine Society