A newly published genetic study has identified biological pathways associated with edematous severe acute malnutrition, a potentially fatal childhood condition characterized by swelling and serious metabolic complications.
Published in Nature Communications, the research examined genetic variations linked to one-carbon metabolism, a network of biochemical processes involved in cellular function.
Analyzing populations in Jamaica and Malawi, researchers identified six genetic loci associated with the condition. Four involved pathways connected to homocysteine and folate metabolism, including AHCYL1, PRICKLE2, GABBR2 and PLD2.
The findings also revealed population differences associated with shared East African genetic ancestry and evolutionary selection patterns.
The study illustrates how genetic variation can reveal biological mechanisms underlying disease, reinforcing the importance of examining inherited susceptibility alongside environmental and nutritional factors.
The researchers' findings strengthen evidence that disrupted one-carbon metabolism contributes to this form of malnutrition. However, the identified associations do not establish a diagnostic test or treatment, and further research is required to understand their clinical significance.