PMID- 34413283 OWN - NLM STAT- MEDLINE DCOM- 20211011 LR - 20230308 IS - 2158-3188 (Electronic) IS - 2158-3188 (Linking) VI - 11 IP - 1 DP - 2021 Aug 19 TI - Cortisol and inflammatory biomarker levels in youths with attention deficit hyperactivity disorder (ADHD): evidence from a systematic review with meta-analysis. PG - 430 LID - 10.1038/s41398-021-01550-0 [doi] LID - 430 AB - Several studies reported abnormal cortisol and inflammatory biomarker levels in youths with attention deficit hyperactivity disorder (ADHD), but the results have not been conclusive. We conducted a systematic review followed by a meta-analysis of case-control studies assessing blood or saliva cortisol levels and blood levels of inflammatory biomarkers in youth with ADHD. The effect sizes (ES) were synthesized by using a random-effects model. In the 19 studies on cortisol levels (totaling n = 916 youth with ADHD and n = 947 typically developing (TD), healthy youth), youth with ADHD have lower basal cortisol levels at any time-points during the day (effect size: .68; p = 0.004) and lower cumulative levels of cortisol (ES: .39, p = .008) throughout the day than TD youth. Moreover, morning cortisol levels were lower in ADHD youth when compared with TD youth (14 studies, n = 1679, ES: .84, p = 0.003), while there is no difference for the afternoon cortisol levels (p = 0.48). The meta-analysis on inflammation biomarker was conducted on 4 studies (totaling n = 404 youth) showed that Tumour Necrosis Factor-alpha (TNF-alpha) was lower in ADHD when compared with TD (3 studies, n = 257 youth, p = 0.004), while no differences for Interleukin-1beta(IL-1beta) (p = 0.21), IL-6 (p = 0.09) and IL-10 (p = 0.77). The lower cortisol in the context of low TNF-alpha levels may indicate a specific pattern of biomarkers in ADHD, and further investigation is warranted. CI - (c) 2021. The Author(s). FAU - Chang, Jane Pei-Chen AU - Chang JP AUID- ORCID: 0000-0001-5582-0928 AD - Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK. peko80@gmail.com. AD - Department of Psychiatry and MBI-Lab, China Medical University Hospital, Taichung, Taiwan. peko80@gmail.com. AD - College of Medicine, China Medical University, Taichung, Taiwan. peko80@gmail.com. FAU - Su, Kuan-Pin AU - Su KP AUID- ORCID: 0000-0002-4501-2502 AD - Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK. AD - Department of Psychiatry and MBI-Lab, China Medical University Hospital, Taichung, Taiwan. AD - College of Medicine, China Medical University, Taichung, Taiwan. AD - An-Nan Hospital, China Medical University, Tainan, Taiwan. FAU - Mondelli, Valeria AU - Mondelli V AUID- ORCID: 0000-0001-8690-6839 AD - Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK. FAU - Pariante, Carmine M AU - Pariante CM AUID- ORCID: 0000-0002-9132-5091 AD - Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK. LA - eng GR - G108/603/MRC_/Medical Research Council/United Kingdom GR - MR/L014815/1/MRC_/Medical Research Council/United Kingdom GR - MR/J002739/1/MRC_/Medical Research Council/United Kingdom PT - Journal Article PT - Meta-Analysis PT - Research Support, Non-U.S. Gov't PT - Review PT - Systematic Review DEP - 20210819 PL - United States TA - Transl Psychiatry JT - Translational psychiatry JID - 101562664 RN - 0 (Biomarkers) RN - WI4X0X7BPJ (Hydrocortisone) SB - IM MH - Adolescent MH - *Attention Deficit Disorder with Hyperactivity MH - Biomarkers MH - Case-Control Studies MH - Humans MH - *Hydrocortisone MH - Saliva PMC - PMC8377148 COIS- Dr. Chang and Dr. Su declare no conflict of interest. Dr. Pariante and Dr. Mondelli have received research funding from Janssen Pharmaceutical NV/Janssen Pharmaceutical Companies of Jonhson&Jonhson. Dr. Pariante has also received speaker's fees from Lundbeck and consultation fees from Consultant to Eleusis Benefit Corporation. EDAT- 2021/08/21 06:00 MHDA- 2021/10/12 06:00 PMCR- 2021/08/19 CRDT- 2021/08/20 06:03 PHST- 2021/01/26 00:00 [received] PHST- 2021/08/02 00:00 [accepted] PHST- 2021/07/16 00:00 [revised] PHST- 2021/08/20 06:03 [entrez] PHST- 2021/08/21 06:00 [pubmed] PHST- 2021/10/12 06:00 [medline] PHST- 2021/08/19 00:00 [pmc-release] AID - 10.1038/s41398-021-01550-0 [pii] AID - 1550 [pii] AID - 10.1038/s41398-021-01550-0 [doi] PST - epublish SO - Transl Psychiatry. 2021 Aug 19;11(1):430. doi: 10.1038/s41398-021-01550-0.