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Nyangiri OA, Mulindwa J, Namulondo J, Kitibwa A, Nassuuna J, Elliott A, Kimuda MP, Boobo A, Nerima B, Adriko M, Dunton NJ, Madhan GK, Kristiansen M, Casacuberta-Partal M, Noyes H, Matovu E. Variants of IL6, IL10, FCN2, RNASE3, IL12B and IL17B loci are associated with Schistosoma mansoni worm burden in the Albert Nile region of Uganda. PLoS Negl Trop Dis 2023; 17:e0011796. [PMID: 38033168 PMCID: PMC10715658 DOI: 10.1371/journal.pntd.0011796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 12/12/2023] [Accepted: 11/14/2023] [Indexed: 12/02/2023] Open
Abstract
BACKGROUND Individuals genetically susceptible to high schistosomiasis worm burden may contribute disproportionately to transmission and could be prioritized for control. Identifying genes involved may guide development of therapy. METHODOLOGY/PRINCIPAL FINDINGS A cohort of 606 children aged 10-15 years were recruited in the Albert Nile region of Uganda and assessed for Schistosoma mansoni worm burden using the Up-Converting Particle Lateral Flow (UCP-LF) test detecting circulating anodic antigen (CAA), point-of-care Circulating Cathodic Antigen (POC-CCA) and Kato-Katz tests. Whole genome genotyping was conducted on 326 children comprising the top and bottom 25% of worm burden. Linear models were fitted to identify variants associated with worm burden in preselected candidate genes. Expression quantitative trait locus (eQTL) analysis was conducted for candidate genes with UCP-LF worm burden included as a covariate. Single Nucleotide Polymorphism loci associated with UCP-LF CAA included IL6 rs2066992 (OR = 0.43, p = 0.0006) and rs7793163 (OR = 2.0, p = 0.0007); IL21 SNP kgp513476 (OR 1.79, p = 0.0025) and IL17B SNP kgp708159 (OR = 0.35, p = 0.0028). A haplotype in the IL10 locus was associated with lower worm burden (OR = 0.53, p = 0.015) and overlapped SNPs rs1800896, rs1800871 and rs1800872. Significant haplotypes (p<0.05, overlapping significant SNP) associated with worm burden were observed in IL6 and the Th17 pathway IL12B and IL17B genes. There were significant eQTL in the IL6, IL5, IL21, IL25 and IFNG regions. CONCLUSIONS Variants associated with S. mansoni worm burden were in IL6, FCN2, RNASE3, IL10, IL12B and IL17B gene loci. However only eQTL associations remained significant after Bonferroni correction. In summary, immune balance, pathogen recognition and Th17 pathways may play a role in modulating Schistosoma worm burden. Individuals carrying risk variants may be targeted first in allocation of control efforts to reduce the burden of schistosomiasis in the community.
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Affiliation(s)
- Oscar Asanya Nyangiri
- Department of Biotechnical and Diagnostic Sciences, College of Veterinary Medicine Animal Resources and Biosecurity, Makerere University, Kampala, Uganda
| | - Julius Mulindwa
- Department of Biochemistry and Sports Sciences, College of Natural Sciences, Makerere University, Kampala, Uganda
| | - Joyce Namulondo
- Department of Biotechnical and Diagnostic Sciences, College of Veterinary Medicine Animal Resources and Biosecurity, Makerere University, Kampala, Uganda
| | - Anna Kitibwa
- Department of Biotechnical and Diagnostic Sciences, College of Veterinary Medicine Animal Resources and Biosecurity, Makerere University, Kampala, Uganda
| | - Jacent Nassuuna
- Medical Research Council/Uganda Virus Research Institute and London School of Hygiene & Tropical Medicine Uganda Research Unit, Entebbe, Uganda
| | - Alison Elliott
- Medical Research Council/Uganda Virus Research Institute and London School of Hygiene & Tropical Medicine Uganda Research Unit, Entebbe, Uganda
| | - Magambo Phillip Kimuda
- Department of Biotechnical and Diagnostic Sciences, College of Veterinary Medicine Animal Resources and Biosecurity, Makerere University, Kampala, Uganda
| | - Alex Boobo
- Department of Biotechnical and Diagnostic Sciences, College of Veterinary Medicine Animal Resources and Biosecurity, Makerere University, Kampala, Uganda
| | - Barbara Nerima
- Department of Biotechnical and Diagnostic Sciences, College of Veterinary Medicine Animal Resources and Biosecurity, Makerere University, Kampala, Uganda
| | - Moses Adriko
- Vector Borne & NTD Control Division, Ministry of Health, Uganda
| | - Nathan J. Dunton
- UCL Genomics core facility, University College London, London, United Kingdom
| | | | - Mark Kristiansen
- UCL Genomics core facility, University College London, London, United Kingdom
| | | | - Harry Noyes
- Centre for Genomic Research, University of Liverpool, Liverpool, United Kingdom
| | - Enock Matovu
- Department of Biotechnical and Diagnostic Sciences, College of Veterinary Medicine Animal Resources and Biosecurity, Makerere University, Kampala, Uganda
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Brown LA, Bryan CJ, Butner JE, Tabares JV, Young-McCaughan S, Hale WJ, Fina BA, Foa EB, Resick PA, Taylor DJ, Coon H, Williamson DE, Dondanville KA, Borah EV, McLean CP, Wachen JS, Pruiksma KE, Hernandez AM, Litz BT, Mintz J, Yarvis JS, Borah AM, Nicholson KL, Maurer DM, Kelly KM, Peterson AL. Identifying suicidal subtypes and dynamic indicators of increasing and decreasing suicide risk in active duty military personnel: Study protocol. Contemp Clin Trials Commun 2021; 21:100752. [PMID: 33748530 PMCID: PMC7973131 DOI: 10.1016/j.conctc.2021.100752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 10/16/2020] [Accepted: 02/09/2021] [Indexed: 11/25/2022] Open
Abstract
Objectives Several recent studies have demonstrated that posttraumatic stress disorder (PTSD) and insomnia treatments are associated with significant reductions in suicidal ideation (SI) among service members. However, few investigations have evaluated the manner in which suicide risk changes over time among military personnel receiving PTSD or insomnia treatments. This paper describes the study protocol for a project with these aims: (1) explore potential genetic, clinical, and demographic subtypes of suicide risk in a large cohort of deployed service members; (2) explore subtype change in SI as a result of evidence-based psychotherapies for PTSD and insomnia; (3) evaluate the speed of change in suicide risk; and (4) identify predictors of higher- and lower-risk for suicide. Methods Active duty military personnel were recruited for four clinical trials (three for PTSD treatment and one for insomnia treatment) and a large prospective epidemiological study of deployed service members, all conducted through the South Texas Research Organizational Network Guiding Studies on Trauma and Resilience (STRONG STAR Consortium). Participants completed similar measures of demographic and clinical characteristics and subsets provided blood samples for genetic testing. The primary measures that we will analyze are the Beck Scale for Suicide Ideation, Beck Depression Inventory, and the PTSD Checklist for DSM-IV. Discussion Results from this study will offer new insights into the presence of discrete subtypes of suicide risk among active duty personnel, changes in risk over time among those subtypes, and predictors of subtypes. Findings will inform treatment development for military service members at risk for suicide.
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Affiliation(s)
- Lily A Brown
- Center for the Treatment and Study of Anxiety, University of Pennsylvania, 3535 Market Street, 6th Floor, Philadelphia, PA, 19104, USA
| | - Craig J Bryan
- National Center for Veterans Studies, 260 S. Central Campus Dr., Suite 3525, Gardner Commons, Salt Lake City, UT, 84112, USA.,Department of Psychology, The University of Utah, 380 S 1530 E BEH S 502, Salt Lake City, UT, 84112, USA
| | - Jonathan E Butner
- Department of Psychology, The University of Utah, 380 S 1530 E BEH S 502, Salt Lake City, UT, 84112, USA
| | - Jeffrey V Tabares
- National Center for Veterans Studies, 260 S. Central Campus Dr., Suite 3525, Gardner Commons, Salt Lake City, UT, 84112, USA.,Department of Psychology, The University of Utah, 380 S 1530 E BEH S 502, Salt Lake City, UT, 84112, USA
| | - Stacey Young-McCaughan
- Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, MC 7792, San Antonio, TX, 78229, USA
| | - Willie J Hale
- Department of Psychology, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249-1644, USA.,Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, MC 7792, San Antonio, TX, 78229, USA
| | - Brooke A Fina
- Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, MC 7792, San Antonio, TX, 78229, USA
| | - Edna B Foa
- Center for the Treatment and Study of Anxiety, University of Pennsylvania, 3535 Market Street, 6th Floor, Philadelphia, PA, 19104, USA
| | - Patricia A Resick
- Department of Psychiatry & Behavioral Sciences, Duke University, 1121 West Chapel Hill Road, Suite 201, Durham, NC, 27701, USA
| | - Daniel J Taylor
- Department of Psychology, University of Arizona, 1503 E University Blvd., Tucson, AZ, 85721, USA
| | - Hillary Coon
- Department of Psychiatry, University of Utah School of Medicine, 30 N. 1900 E, Salt Lake City, UT, 84132, USA
| | - Douglas E Williamson
- Department of Psychiatry & Behavioral Sciences, Duke University, 1121 West Chapel Hill Road, Suite 201, Durham, NC, 27701, USA.,Durham VA Health Care System, Medical Center, 508 Fulton Street, Durham, NC, 27705, USA
| | - Katherine A Dondanville
- Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, MC 7792, San Antonio, TX, 78229, USA
| | - Elisa V Borah
- Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, MC 7792, San Antonio, TX, 78229, USA.,Steve Hicks School of Social Work, The University of Texas at Austin, 1717 W. 6th Street, Suite 335 Austin, TX, 78703, USA
| | - Carmen P McLean
- National Center for PTSD, VA Palo Alto Health Care System, 795 Willow Road, Menlo Park, CA, 94025, USA.,Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Rd., Palo Alto, CA, 94305, USA
| | - Jennifer Schuster Wachen
- National Center for PTSD, VA Boston Healthcare System, 150 S. Huntington Ave., Boston, MA, 02130, USA.,Boston University School of Medicine, Department of Psychiatry, 720 Harrison Avenue, Boston, MA, 02118, USA
| | - Kristi E Pruiksma
- Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, MC 7792, San Antonio, TX, 78229, USA
| | - Ann Marie Hernandez
- Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, MC 7792, San Antonio, TX, 78229, USA.,Valiant Mental Health PLLC, 219 E. Locust Street, San Antonio, TX, 78212, USA
| | - Brett T Litz
- Massachusetts Veterans Epidemiological Research and Information Center, VA Boston Healthcare System, 150 S. Huntington Ave., Boston, MA, 02130, USA.,Boston University School of Medicine, Department of Psychiatry, 720 Harrison Avenue, Boston, MA, 02118, USA.,Department of Psychological & Brain Sciences, Boston University, 64 Cummington Mall, Boston, MA, 02215, USA
| | - Jim Mintz
- Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, MC 7792, San Antonio, TX, 78229, USA
| | - Jeffrey S Yarvis
- Department of Behavioral Health, Carl R. Darnall Army Medical Center, 36065 Santa Fe Avenue Fort Hood, TX, 76544-4752, USA
| | - Adam M Borah
- Department of Behavioral Health, Carl R. Darnall Army Medical Center, 36065 Santa Fe Avenue Fort Hood, TX, 76544-4752, USA.,Department of Behavioral Medicine and Health Services, Central Texas Veterans Health Care System, 1901 Veterans Memorial Dr, Temple, TX, 76504, USA
| | - Karin L Nicholson
- Department of Medicine, Carl R. Darnall Army Medical Center, 36065 Santa Fe Avenue Fort Hood, Texas, 76544-4752, USA
| | - Douglas M Maurer
- Department of Family Medicine, Carl R. Darnall Army Medical Center, 36065 Santa Fe Avenue Fort Hood, TX, 76544-4752, USA.,Army Medical Education Directorate, Office of the Surgeon General, Defense Health Headquarters, 7700 Arlington Blvd., Falls Church, VA, 22042, USA
| | - Kevin M Kelly
- Department of Family Medicine, Carl R. Darnall Army Medical Center, 36065 Santa Fe Avenue Fort Hood, TX, 76544-4752, USA.,Office of the Army Surgeon General, Falls Church, VA, USA
| | - Alan L Peterson
- Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, MC 7792, San Antonio, TX, 78229, USA.,Research and Development Service, South Texas Veterans Health Care System, 7400 Merton Minter, San Antonio, TX, 78229, USA.,Department of Psychology, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249-1644, USA
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