Full Terms & Conditions of access and use can be found at http://www.tandfonline.com/action/journalInformation?journalCode=iwbp20 The World Journal of Biological Psychiatry ISSN: 1562-2975 (Print) 1814-1412 (Online) Journal homepage: http://www.tandfonline.com/loi/iwbp20 Reduced peripheral availability of tryptophan and increased activation of the kynurenine pathway and cortisol correlate with major depression and suicide Amel Messaoud, Mensi Rym, Wahiba Douki, Fadoua Neffati, Mohamed Fadhel Najjar, Gabriella Gobbi, Flavia Valtorta, Lotfi Gaha & Stefano Comai To cite this article: Amel Messaoud, Mensi Rym, Wahiba Douki, Fadoua Neffati, Mohamed Fadhel Najjar, Gabriella Gobbi, Flavia Valtorta, Lotfi Gaha & Stefano Comai (2018): Reduced peripheral availability of tryptophan and increased activation of the kynurenine pathway and cortisol correlate with major depression and suicide, The World Journal of Biological Psychiatry, DOI: 10.1080/15622975.2018.1468031 To link to this article: https://doi.org/10.1080/15622975.2018.1468031 Accepted author version posted online: 23 Apr 2018. Submit your article to this journal View related articles View Crossmark data