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  • Title: Metronidazole-Induced Hepatitis in a Teenager With Xeroderma Pigmentosum and Trichothiodystrophy Overlap.
    Author: Abiona A, Cordeiro N, Fawcett H, Tamura D, Khan SG, DiGiovanna JJ, Lehmann AR, Fassihi H.
    Journal: Pediatrics; 2021 Oct; 148(4):. PubMed ID: 34593652.
    Abstract:
    A teenage girl had the rare combined phenotype of xeroderma pigmentosum and trichothiodystrophy, resulting from mutations in the XPD (ERCC2) gene involved in nucleotide excision repair (NER). After treatment with antibiotics, including metronidazole for recurrent infections, she showed signs of acute and severe hepatotoxicity, which gradually resolved after withdrawal of the treatment. Cultured skin fibroblasts from the patient revealed cellular sensitivity to killing by metronidazole compared with cells from a range of other donors. This reveals that the metronidazole sensitivity was an intrinsic property of her cells. It is well recognized that patients with Cockayne syndrome, another NER disorder, are at high risk of metronidazole-induced hepatotoxicity, but this had not been reported in individuals with other NER disorders. We would urge extreme caution in the use of metronidazole in the management of individuals with the xeroderma pigmentosum and trichothiodystrophy overlap or trichothiodystrophy phenotypes.
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