PMID- 37485408 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230725 IS - 0019-5545 (Print) IS - 1998-3794 (Electronic) IS - 0019-5545 (Linking) VI - 65 IP - 6 DP - 2023 Jun TI - The toll of opioid dependence: A research report on the possible role of Toll-like receptor-4 and related immune markers in opioid dependence. PG - 626-634 LID - 10.4103/indianjpsychiatry.indianjpsychiatry_314_22 [doi] AB - BACKGROUND: The opioid receptors in the central nervous system and immune system contribute to its reinforcing effect. Xenobiotics-associated molecular pattern of opioids interacts with Toll-like receptor-4 (TLR-4) on the glial cell surface and increases dopaminergic activity in the nucleus accumbens in preclinical studies. We wanted to examine whether treatment with buprenorphine-naloxone (BNX) might be associated with changes in immunological markers in individuals with opioid dependence (OD). METHODS: We recruited 30 individuals with OD on buprenorphine and 30 age- and sex-matched healthy controls (HCs). We measured the neutrophil (N), lymphocyte (L), CD-4, and CD-8 T-cell count and estimated plasma TLR-4 level in the HC group once. We measured the immunological markers, craving, pain, and perceived stress in the OD group at the treatment initiation (baseline) and after 4 weeks (+/-2 weeks) of treatment with BNX. RESULTS: The mean severity score on the OD questionnaire was 72.8 (SD 5.4). At baseline, OD had a higher N: L ratio and lower lymphocyte percentage than HC. Plasma TLR-4 concentration increased significantly after 1 month of treatment (t = -3.09, P = 0.004). Craving, pain, and perceived stress correlated with absolute neutrophil count, N: L ratio, and CD-8 T-cell count, although lost significance after corrections for multiple comparisons. CONCLUSION: The increase in TLR-4 after treatment with BNX may indicate the rescue from nonprescription opioid-induced immunosuppression or the introduction of a novel xenobiotics-associated molecular pattern of BNX. CI - Copyright: (c) 2023 Indian Journal of Psychiatry. FAU - Mahintamani, Tathagata AU - Mahintamani T AD - Department of Psychiatry, Drug Deaddiction and Treatment Centre, Chandigarh, India. AD - Department of Addiction Medicine and Department of Psychiatry, Lokopriya Gopinath Bordoloi Regional Institute of Mental Health, Tezpur, Assam, India. FAU - Basu, Debasish AU - Basu D AD - Department of Psychiatry, Drug Deaddiction and Treatment Centre, Chandigarh, India. FAU - Ghosh, Abhishek AU - Ghosh A AD - Department of Psychiatry, Drug Deaddiction and Treatment Centre, Chandigarh, India. FAU - Luthra-Guptasarma, Manni AU - Luthra-Guptasarma M AD - Department of Immunopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India. LA - eng PT - Journal Article DEP - 20230619 PL - India TA - Indian J Psychiatry JT - Indian journal of psychiatry JID - 0013255 PMC - PMC10358820 OTO - NOTNLM OT - Buprenorphine-naloxone OT - Toll-like receptor-4 OT - craving OT - opioid dependence COIS- There are no conflicts of interest. EDAT- 2023/07/24 06:41 MHDA- 2023/07/24 06:42 PMCR- 2023/06/01 CRDT- 2023/07/24 04:58 PHST- 2022/05/08 00:00 [received] PHST- 2023/03/28 00:00 [revised] PHST- 2023/04/12 00:00 [accepted] PHST- 2023/07/24 06:42 [medline] PHST- 2023/07/24 06:41 [pubmed] PHST- 2023/07/24 04:58 [entrez] PHST- 2023/06/01 00:00 [pmc-release] AID - IJPsy-65-626 [pii] AID - 10.4103/indianjpsychiatry.indianjpsychiatry_314_22 [doi] PST - ppublish SO - Indian J Psychiatry. 2023 Jun;65(6):626-634. doi: 10.4103/indianjpsychiatry.indianjpsychiatry_314_22. Epub 2023 Jun 19.