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  "path": "/news/2026-04-chemical-lingers-strangest-effect-sex.html",
  "publishedAt": "2026-04-28T17:50:04.000Z",
  "site": "https://medicalxpress.com",
  "textContent": "In two new studies, researchers at the UC Davis MIND Institute have clarified how a long-banned group of chemicals, called polychlorinated biphenyls (PCBs), affect genetic activity. The research helps explain how biological systems respond to these exposures, including key differences between males and females.",
  "title": "A banned chemical still lingers, and its strangest effect may depend on sex, genes and one common vitamin"
}