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Study Charts Possibilities for a Better way to Diagnose Gestational Diabetes

Pregnancy weight and biochemical markers measured in blood from women with gestational diabetes mellitus (GDM) were related to increased risk of poor pregnancy outcomes, suggesting a new direction for precision diagnostics, according to researchers.

The study led by Ellen C. Francis, an assistant professor in the Department of Biostatistics and Epidemiology at Rutgers School of Public Health, and published in Communications Medicine, evaluated the diagnostic value of these markers before or at the time of screening for GDM, a type of diabetes that can develop during pregnancy.

Although we found that obesity is a risk factor for offspring born larger for their gestational age, evidence suggests that the metabolic alterations that accompany obesity increase the risk of adverse outcomes,” said Francis.

GDM, characterized by elevated blood sugar (glucose) levels during pregnancy, is the most common metabolic condition among pregnant women and poses risks to both mother and child.

While standard treatments are applied, clinical outcomes can differ among individuals.

Francis said the research demonstrates the need for a more nuanced approach to diagnose GDM, which may help improve outcomes.

It is the first systematic review of the literature to assess the potential of subtypes in GDM and to examine whether nonglycemic markers could refine risk stratification.

Francis said some of the literature suggested insulin profiles and triglyceride levels may serve as promising non-glucose indicators of risk.

To really assess the clinical implications of precision diagnostics in GDM, we first need to understand if insulin resistance or higher triglycerides are causally linked to adverse outcomes, and whether we can safely target them in pregnancy,” Francis said.

Overall, researchers found a critical gap in the existing literature in which most studies hadn’t focused on comparing clinical, biochemical or sociocultural differences among women who develop GDM.

In our full text screening of 775 studies, we found that only recently has there been a focus on clinical, biochemical, or sociocultural markers that could improve who is at greatest risk of poor outcomes, and on comparing clinical outcomes between different subtypes of GDM,” said Francis.

“The data from these studies indicate that in the future, we may be able to refine how we diagnose GDM by using anthropometric or biochemical information in combination with current diagnostic approaches.”

Future research should delve into mechanistic studies on precision biomarkers, large diverse population studies for replication, and multinational studies focusing on environmental and behavioral factors, Francis said.

Sources : www.sciencedaily.com

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