Oral bacteria could hold key to early obesity detection, NYU Abu Dhabi study says

UAE—Researchers at New York University Abu Dhabi have discovered a potential breakthrough in the fight against obesity.

Their latest study suggests that changes in oral bacteria might serve as an early warning system for obesity and related metabolic disorders.

Scientists analyzed the oral microbiome, the diverse community of bacteria and microorganisms living in the mouth, among Emirati adults.

The research team believes these findings could revolutionize how doctors detect and prevent obesity by monitoring bacterial changes in the mouth.

The Department of Health – Abu Dhabi supported this groundbreaking investigation, which aligns with the emirate’s commitment to preventing diseases before they develop.

The study advances precision medicine by combining genomic, clinical, biochemical, and metabolomic data to deliver personalized healthcare tailored to individual needs.

Aashish Jha, Assistant Professor of Biology and Co-Principal Investigator of the Research Institute’s Public Health Research Center at NYU Abu Dhabi, led the research team.

Published in Cell Reports, the study examined samples from 628 Emirati adults participating in the UAE Healthy Future Study.

This investigation represents one of the most comprehensive analyses of oral microbiomes conducted to date.

Researchers explored how bacterial composition in the mouth differs between people with and without obesity.

They employed advanced multi-omics profiling to understand these differences at a molecular level.

The team discovered that individuals with obesity harbor distinctive patterns of bacteria that perform specific functions and produce metabolites potentially contributing to inflammation and metabolic imbalance.

People with obesity showed higher levels of inflammation-linked bacteria in their mouths.

Conversely, bacteria that support healthy metabolism appeared less frequently in this group.

These bacterial imbalances coincided with elevated levels of specific chemical by-products that scientists have previously connected to weight gain and metabolic disease.

The findings suggest that disruptions in the mouth’s microbial community may contribute to inflammation and metabolic stress.

This condition occurs when the body’s energy demands or cellular balance exceed its capacity, leading to impaired cellular function.

Doctors frequently observe this phenomenon in people with obesity.

Jha emphasized the significance of these discoveries, noting that the mouth represents an important yet frequently overlooked component of the body’s metabolic system.

Studying how oral bacteria and metabolites differ in people with obesity helps scientists understand how these microbes influence inflammation and overall metabolic health. These insights create new opportunities for early detection and prevention strategies targeting the oral microbiome.

Dr. Asma Al Mannaei, Executive Director of the Health Life Sciences Sector at the Department of Health – Abu Dhabi, highlighted the emirate’s continued focus on building a robust life sciences ecosystem.

This infrastructure enables scientific discovery and advances precision health initiatives across the region.

Al Mannaei congratulated the NYU Abu Dhabi research team for their valuable contribution to the UAE Healthy Future Study.

These insights deepen understanding of biological factors shaping long-term health outcomes.

The findings support broader efforts to promote prevention, enhance population health, and inform evidence-based interventions that improve community outcomes.

Obesity continues to challenge public health systems worldwide.

This study adds a crucial dimension to understanding how microbial imbalances influence body weight and metabolic health by focusing on the oral microbiome.

The UAE Healthy Future Study operates as a prospective cohort study investigating risk factors for non-communicable diseases in the Emirati population.

The initiative brings together strategic partners and co-investigators from academic institutions, healthcare organizations, and industry partners throughout the UAE.

Times Higher Education ranks NYU among the world’s top 31 universities, making NYU Abu Dhabi the highest globally ranked university in the Emirates.

The university’s alumni include 24 Rhodes Scholars, demonstrating the exceptional caliber of talent the institution develops.

NYU Abu Dhabi now employs four Nobel Laureates on its faculty.

The university has established over 90 faculty labs and research projects, producing more than 9,500 internationally recognized publications.

According to the Nature Index, NYU Abu Dhabi holds the top position in the UAE for publications in leading science journals.