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  "path": "/news/2026-05-toxic-molecule-play-vital-role.html",
  "publishedAt": "2026-05-28T15:00:01.000Z",
  "site": "https://medicalxpress.com",
  "textContent": "A molecule once thought to be a harmful metabolic byproduct may play a crucial role in early development and gene regulation, according to a new study published in Nature that challenges decades of biochemical assumptions. In the study, Northwestern Medicine investigators found that L-2-hydroxyglutarate (L-2-HG)—a compound previously associated with rare metabolic disorders—acts as a signaling molecule that helps regulate gene expression and supports normal growth in mice.",
  "title": "'Toxic' molecule may play vital role in gene regulation and development"
}