Sex-specific microbial and tryptophan signatures of depression implicate archaeal methanogens and indole-3-acetic acid only in women.

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Title: Sex-specific microbial and tryptophan signatures of depression implicate archaeal methanogens and indole-3-acetic acid only in women.
Authors: Motger-Albertí A; Department of Diabetes, Endocrinology and Nutrition, Dr. Josep Trueta University Hospital, Girona, Spain.; Nutrition, Eumetabolism and Health Group, Girona Biomedical Research Institute (IDIBGI-CERCA), Girona, Spain.; CIBER Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBERobn), Madrid, Spain.; Integrative Systems Medicine and Biology Group, Girona Biomedical Research Institute (IDIBGI-CERCA), Parc Hospitalari Martí i Julià, Edifici M2, Girona, Spain., Gallardo-Nuell L; Department of Diabetes, Endocrinology and Nutrition, Dr. Josep Trueta University Hospital, Girona, Spain.; Nutrition, Eumetabolism and Health Group, Girona Biomedical Research Institute (IDIBGI-CERCA), Girona, Spain.; CIBER Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBERobn), Madrid, Spain.; Integrative Systems Medicine and Biology Group, Girona Biomedical Research Institute (IDIBGI-CERCA), Parc Hospitalari Martí i Julià, Edifici M2, Girona, Spain., Rosell-Díaz M; Department of Diabetes, Endocrinology and Nutrition, Dr. Josep Trueta University Hospital, Girona, Spain.; Nutrition, Eumetabolism and Health Group, Girona Biomedical Research Institute (IDIBGI-CERCA), Girona, Spain.; CIBER Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBERobn), Madrid, Spain.; Integrative Systems Medicine and Biology Group, Girona Biomedical Research Institute (IDIBGI-CERCA), Parc Hospitalari Martí i Julià, Edifici M2, Girona, Spain., Stefoglo M; Nutrition, Eumetabolism and Health Group, Girona Biomedical Research Institute (IDIBGI-CERCA), Girona, Spain., Pons J; Area of Genomics and Health, Foundation for the Promotion of Sanitary and Biomedical Research of Valencia Region (FISABIO-Public Health), Valencia, Spain., Garre-Olmo J; Research Group on Health, Gender, and Aging; Girona Biomedical Research Institute (IDIBGI) and University of Girona, Girona, Spain.; Serra-Hunter professor, Department of Nursing, University of Girona, Girona, Spain., Pérez-Brocal V; Area of Genomics and Health, Foundation for the Promotion of Sanitary and Biomedical Research of Valencia Region (FISABIO-Public Health), Valencia, Spain.; Biomedical Research Networking Center for Epidemiology and Public Health (CIBERESP), Madrid, Spain., Moya A; Area of Genomics and Health, Foundation for the Promotion of Sanitary and Biomedical Research of Valencia Region (FISABIO-Public Health), Valencia, Spain.; Biomedical Research Networking Center for Epidemiology and Public Health (CIBERESP), Madrid, Spain.; Institute for Integrative Systems Biology (I2SysBio), University of Valencia and Spanish National Research Council (CSIC), Valencia, Spain., Puig J; Department of Medical Sciences, School of Medicine, University of Girona, Girona, Spain.; Department of Radiology (CDI) and IDIBAPS, Hospital Clínic de Barcelona, Barcelona, Spain., Ramos R; Department of Medical Sciences, School of Medicine, University of Girona, Girona, Spain.; Vascular Health Research Group of Girona (ISV-Girona). Jordi Gol Institute for Primary Care Research (Institut Universitari per a la Recerca en Atenció Primària Jordi Gol I Gorina -IDIAPJGol), Red de Investigación en Cronicidad, Atención Primaria y Promoción de la Salud -RICAPPS- ISCIII, Girona, Spain.; Girona Biomedical Research Institute (IDIBGI), Dr. Josep Trueta University Hospital, Catalonia, Spain., Mayneris-Perxachs J; Department of Diabetes, Endocrinology and Nutrition, Dr. Josep Trueta University Hospital, Girona, Spain. jmayneris@idibgi.org.; CIBER Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBERobn), Madrid, Spain. jmayneris@idibgi.org.; Integrative Systems Medicine and Biology Group, Girona Biomedical Research Institute (IDIBGI-CERCA), Parc Hospitalari Martí i Julià, Edifici M2, Girona, Spain. jmayneris@idibgi.org., Fernández-Real JM; Department of Diabetes, Endocrinology and Nutrition, Dr. Josep Trueta University Hospital, Girona, Spain. jmfreal@idibgi.org.; Nutrition, Eumetabolism and Health Group, Girona Biomedical Research Institute (IDIBGI-CERCA), Girona, Spain. jmfreal@idibgi.org.; CIBER Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBERobn), Madrid, Spain. jmfreal@idibgi.org.; Department of Medical Sciences, School of Medicine, University of Girona, Girona, Spain. jmfreal@idibgi.org.
Source: NPJ biofilms and microbiomes [NPJ Biofilms Microbiomes] 2026 May 04; Vol. 12 (1). Date of Electronic Publication: 2026 May 04.
Publication Type: Journal Article; Research Support, Non-U.S. Gov't
Journal Info: Publisher: Nature Publishing Group Country of Publication: United States NLM ID: 101666944 Publication Model: Electronic Cited Medium: Internet ISSN: 2055-5008 (Electronic) Linking ISSN: 20555008 NLM ISO Abbreviation: NPJ Biofilms Microbiomes Subsets: MEDLINE
Database: MEDLINE Ultimate
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ISSN:2055-5008
DOI:10.1038/s41522-026-00983-z