PMID- 33866261 OWN - NLM STAT- MEDLINE DCOM- 20210705 LR - 20210705 IS - 1573-2509 (Electronic) IS - 0920-9964 (Linking) VI - 231 DP - 2021 May TI - Neutrophils to lymphocytes ratio and psychosis in 22q11.2 deletion syndrome - Clinical and scientific implications. PG - 164-169 LID - S0920-9964(21)00149-3 [pii] LID - 10.1016/j.schres.2021.03.023 [doi] AB - BACKGROUND: Individuals with 22q11.2 deletion syndrome (22q11.2DS) are at risk for having both psychotic and immune disorders, thus, implying a possible link between the two. The aim of the current study was to evaluate the usefulness of the neutrophiles to leukocytes ratio (NLR), an inflammatory marker, as a bio-marker for overt and prodromal psychotic symptoms in 22q11.2DS. METHODS: Forty-nine individuals with 22q11.2DS (13 with psychotic disorders and 36 without psychotic disorders) and 30 age- and sex-matched healthy controls underwent psychiatric evaluation using a structured psychiatric interview, the Scale of Prodromal Symptoms (SOPS) and the Global Assessment of Functioning (GAF) scale. Blood samples were collected from all participants on the day of assessment. NLR was calculated, compared among the study groups and correlated with SOPS and GAF scores. The non-psychotic 22q11.2DS group was further divided into high- and low-inflammation groups by NLR values and the analyses were done again. RESULTS: NLR was higher in the psychotic- and the high-inflammation non-psychotic 22q11.2DS groups compared to the low-inflammation non-psychotic 22q11.2DS group and controls. In the high-inflammation non-psychotic 22q11.2DS group NLR increase was associated with an increase of total negative symptoms scores on SOPS and a decrease in GAF scores. CONCLUSION: Our results suggest the potential utility of NLR as a bio-marker for psychotic disorders and subthreshold prodromal symptoms in 22q11.2DS. Furthermore, they imply that a disequilibrium between the innate and adaptive arms of the immune system facilitates the progression of psychosis in at risk populations. Further longitudinal studies are warranted to validate our findings, as this was a cross sectional observation. CI - Copyright (c) 2021 Elsevier B.V. All rights reserved. FAU - Mekori-Domachevsky, Ehud AU - Mekori-Domachevsky E AD - Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; The Child and Adolescent Psychiatry Division, Safra Children's Hospital, Sheba Medical Center, Ramat Gan, Israel. Electronic address: ehud.mekori@sheba.gov.il. FAU - Taler, Michal AU - Taler M AD - Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Laboratory of Biological Psychiatry, Felsenstein Medical Research Center, Petah Tikva, Israel; Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel. FAU - Weinberger, Ronnie AU - Weinberger R AD - Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel. FAU - Guri, Yael AU - Guri Y AD - Eitanim Mental Health Center, Jerusalem, Israel. FAU - Dar, Shira AU - Dar S AD - Laboratory of Biological Psychiatry, Felsenstein Medical Research Center, Petah Tikva, Israel. FAU - Shani, Shachar AU - Shani S AD - Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel. FAU - Dekel, Idit AU - Dekel I AD - Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; The Child and Adolescent Psychiatry Division, Safra Children's Hospital, Sheba Medical Center, Ramat Gan, Israel. FAU - Weizman, Abraham AU - Weizman A AD - Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel; Geha Mental Health Center, Petach Tikva, Israel. FAU - Gothelf, Doron AU - Gothelf D AD - Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; The Child and Adolescent Psychiatry Division, Safra Children's Hospital, Sheba Medical Center, Ramat Gan, Israel; Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210416 PL - Netherlands TA - Schizophr Res JT - Schizophrenia research JID - 8804207 SB - IM MH - Cross-Sectional Studies MH - *DiGeorge Syndrome/complications MH - Humans MH - Lymphocytes MH - Neutrophils MH - *Psychotic Disorders OTO - NOTNLM OT - 22q11.2 deletion syndrome OT - Inflammation OT - Neutrophils lymphocytes ratio OT - Psychosis OT - Schizophrenia COIS- Declaration of competing interest All of the authors declare that there are no conflicts of interest pertaining to this study. EDAT- 2021/04/19 06:00 MHDA- 2021/07/06 06:00 CRDT- 2021/04/18 20:53 PHST- 2020/12/05 00:00 [received] PHST- 2021/03/13 00:00 [revised] PHST- 2021/03/30 00:00 [accepted] PHST- 2021/04/19 06:00 [pubmed] PHST- 2021/07/06 06:00 [medline] PHST- 2021/04/18 20:53 [entrez] AID - S0920-9964(21)00149-3 [pii] AID - 10.1016/j.schres.2021.03.023 [doi] PST - ppublish SO - Schizophr Res. 2021 May;231:164-169. doi: 10.1016/j.schres.2021.03.023. Epub 2021 Apr 16.