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Thompson AD, Petry SE, Hauser ER, Boyle SH, Pathak GA, Upchurch J, Press A, Johnson MG, Sims KJ, Williams CD, Gifford EJ. Longitudinal Patterns of Multimorbidity in Gulf War Era Veterans With and Without Gulf War Illness. J Aging Health 2024:8982643241245163. [PMID: 38591766 DOI: 10.1177/08982643241245163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
Objectives: To examine whether severe Gulf War illness (SGWI) case status was associated with longitudinal multimorbidity patterns. Methods: Participants were users of the Veteran Health Administration Health Care System drawn from the Gulf War Era Cohort and Biorepository (n = 840). Longitudinal measures of multimorbidity were constructed using (1) electronic health records (Charlson Comorbidity Index; Elixhauser; and Veterans Affairs Frailty Index) from 10/1/1999 to 6/30/2023 and (2) self-reported medical conditions (Deficit Accumulation Index) since the war until the survey date. Accelerated failure time models examined SGWI case status as a predictor of time until threshold level of multimorbidity was reached, adjusted for age and sociodemographic and military characteristics. Results: Models, adjusted for covariates, revealed that (1) relative to the SWGI- group, the SGWI+ group was associated with an accelerated time for reaching each threshold and (2) the relationship between SGWI and each threshold was not moderated by age. Discussion: Findings suggest that veterans with SGWI experienced accelerated aging.
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Affiliation(s)
- Andrew D Thompson
- Cooperative Studies Program Epidemiology Center, Durham VA Medical Center, Durham, NC, USA
| | - Sarah E Petry
- Cooperative Studies Program Epidemiology Center, Durham VA Medical Center, Durham, NC, USA
- Sanford School of Public Policy, Duke University, Durham, NC, USA
- Carolina Population Center, University of North Carolina, Chapel Hill, NC, USA
| | - Elizabeth R Hauser
- Cooperative Studies Program Epidemiology Center, Durham VA Medical Center, Durham, NC, USA
- Duke Molecular Physiology Institute and Department of Biostatistics and Bioinformatics, Duke University, Durham, NC, USA
| | - Stephen H Boyle
- Cooperative Studies Program Epidemiology Center, Durham VA Medical Center, Durham, NC, USA
| | - Gita A Pathak
- Division of Human Genetics, Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA
- Veteran Affairs Connecticut Healthcare System, West Haven, CT, USA
| | - Julie Upchurch
- Cooperative Studies Program Epidemiology Center, Durham VA Medical Center, Durham, NC, USA
| | - Ashlyn Press
- Cooperative Studies Program Epidemiology Center, Durham VA Medical Center, Durham, NC, USA
| | - Melissa G Johnson
- Cooperative Studies Program Epidemiology Center, Durham VA Medical Center, Durham, NC, USA
| | - Kellie J Sims
- Cooperative Studies Program Epidemiology Center, Durham VA Medical Center, Durham, NC, USA
| | - Christina D Williams
- Cooperative Studies Program Epidemiology Center, Durham VA Medical Center, Durham, NC, USA
| | - Elizabeth J Gifford
- Cooperative Studies Program Epidemiology Center, Durham VA Medical Center, Durham, NC, USA
- Sanford School of Public Policy, Duke University, Durham, NC, USA
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Allott K, Yuen HP, Baldwin L, O'Donoghue B, Fornito A, Chopra S, Nelson B, Graham J, Kerr MJ, Proffitt TM, Ratheesh A, Alvarez-Jimenez M, Harrigan S, Brown E, Thompson AD, Pantelis C, Berk M, McGorry PD, Francey SM, Wood SJ. Effects of risperidone/paliperidone versus placebo on cognitive functioning over the first 6 months of treatment for psychotic disorder: secondary analysis of a triple-blind randomised clinical trial. Transl Psychiatry 2023; 13:199. [PMID: 37301832 DOI: 10.1038/s41398-023-02501-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 05/17/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
The drivers of cognitive change following first-episode psychosis remain poorly understood. Evidence regarding the role of antipsychotic medication is primarily based on naturalistic studies or clinical trials without a placebo arm, making it difficult to disentangle illness from medication effects. A secondary analysis of a randomised, triple-blind, placebo-controlled trial, where antipsychotic-naive patients with first-episode psychotic disorder were allocated to receive risperidone/paliperidone or matched placebo plus intensive psychosocial therapy for 6 months was conducted. A healthy control group was also recruited. A cognitive battery was administered at baseline and 6 months. Intention-to-treat analysis involved 76 patients (antipsychotic medication group: 37; 18.6Mage [2.9] years; 21 women; placebo group: 39; 18.3Mage [2.7]; 22 women); and 42 healthy controls (19.2Mage [3.0] years; 28 women). Cognitive performance predominantly remained stable (working memory, verbal fluency) or improved (attention, processing speed, cognitive control), with no group-by-time interaction evident. However, a significant group-by-time interaction was observed for immediate recall (p = 0.023), verbal learning (p = 0.024) and delayed recall (p = 0.005). The medication group declined whereas the placebo group improved on each measure (immediate recall: p = 0.024; ηp2 = 0.062; verbal learning: p = 0.015; ηp2 = 0.072 both medium effects; delayed recall: p = 0.001; ηp2 = 0.123 large effect). The rate of change for the placebo and healthy control groups was similar. Per protocol analysis (placebo n = 16, medication n = 11) produced similar findings. Risperidone/paliperidone may worsen verbal learning and memory in the early months of psychosis treatment. Replication of this finding and examination of various antipsychotic agents are needed in confirmatory trials. Antipsychotic effects should be considered in longitudinal studies of cognition in psychosis.Trial registration: Australian New Zealand Clinical Trials Registry ( http://www.anzctr.org.au/ ; ACTRN12607000608460).
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Affiliation(s)
- Kelly Allott
- Orygen, Parkville, VIC, Australia.
- Centre for Youth Mental Health, The University of Melbourne, Parkville, VIC, Australia.
| | - Hok Pan Yuen
- Orygen, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | - Lara Baldwin
- Orygen, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | - Brian O'Donoghue
- Orygen, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, VIC, Australia
- Department of Psychiatry, University College Dublin, Belfield, Ireland
| | - Alex Fornito
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Clayton, VIC, Australia
- Monash Biomedical Imaging, Monash University, Clayton, VIC, Australia
| | - Sidhant Chopra
- Department of Psychology, Yale University, New Haven, CT, USA
| | - Barnaby Nelson
- Orygen, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | | | - Melissa J Kerr
- Orygen, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | | | - Aswin Ratheesh
- Orygen, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | - Mario Alvarez-Jimenez
- Orygen, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | - Susy Harrigan
- Department of Social Work, School of Primary and Allied Health Care, Monash University, Melbourne, VIC, Australia
- Centre for Mental Health, Melbourne School of Global and Population Health, The University of Melbourne, Parkville, VIC, Australia
| | - Ellie Brown
- Orygen, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | - Andrew D Thompson
- Orygen, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, VIC, Australia
- Division of Mental Health and Wellbeing, Warwick Medical School, University of Warwick, Warwick, UK
| | - Christos Pantelis
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, The University of Melbourne, Parkville, VIC, Australia
- Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia
- NorthWestern Mental Health, Western Hospital Sunshine, St Albans, VIC, Australia
| | - Michael Berk
- Orygen, Parkville, VIC, Australia
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, VIC, Australia
| | - Patrick D McGorry
- Orygen, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | - Shona M Francey
- Orygen, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | - Stephen J Wood
- Orygen, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, VIC, Australia
- School of Psychology, University of Birmingham, Edgbaston, UK
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Beatty CJ, Yousaf A, Al-Bouri A, Thompson AD, Kiavash K, Kolodney MS. Case Report of Syndromic Multiple Spiradenomas due to Biallelic Functional Loss of CYLD. JAAD Case Rep 2022; 21:106-108. [PMID: 35198713 PMCID: PMC8850552 DOI: 10.1016/j.jdcr.2022.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Colleen J. Beatty
- Department of Dermatology, West Virginia University, Morgantown, West Virginia
| | - Ahmed Yousaf
- Department of Dermatology, West Virginia University, Morgantown, West Virginia
| | - Abdullah Al-Bouri
- Department of Pathology, Anatomy and Laboratory Medicine, West Virginia University, Morgantown, West Virginia
| | - Andrew D. Thompson
- Department of Pathology, Anatomy and Laboratory Medicine, West Virginia University, Morgantown, West Virginia
| | - Katrin Kiavash
- Department of Pathology, Anatomy and Laboratory Medicine, West Virginia University, Morgantown, West Virginia
| | - Michael S. Kolodney
- Department of Dermatology, West Virginia University, Morgantown, West Virginia
- Correspondence to: Michael S. Kolodney, MD, PhD, Department of Dermatology, West Virginia University School of Medicine, 1 Medical Center Drive, Morgantown, WV 26506.
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Efird JT, Anderson EJ, Jindal C, Redding TS, Thompson AD, Press AM, Upchurch J, Williams CD, Choi YM, Suzuki A. The Interaction of Vitamin D and Corticosteroids: A Mortality Analysis of 26,508 Veterans Who Tested Positive for SARS-CoV-2. Int J Environ Res Public Health 2021; 19:447. [PMID: 35010701 PMCID: PMC8744830 DOI: 10.3390/ijerph19010447] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 12/21/2021] [Accepted: 12/28/2021] [Indexed: 12/15/2022]
Abstract
This data-based cohort consisted of 26,508 (7%) United States veterans out of the 399,290 who tested positive for SARS-CoV-2 from 1 March to 10 September 2020. We aimed to assess the interaction of post-index vitamin D (Vit D) and corticosteroid (CRT) use on 30-day mortality among hospitalized and non-hospitalized patients with coronavirus disease 2019 (COVID-19). Combination Vit D and CRT drug use was assessed according to four multinomial pairs (-|+, -|-, +|+, +|-). Respective categorical effects were computed on a log-binomial scale as adjusted relative risk (aRR). Approximately 6% of veterans who tested positive for SARS-CoV-2 died within 30 days of their index date. Among hospitalized patients, a significantly decreased aRR was observed for the use of Vit D in the absence of CRTs relative to patients who received CRTs but not Vit D (aRR = 0.30; multiplicity corrected, p = 0.0004). Among patients receiving systemically administered CRTs (e.g., dexamethasone), the use of Vit D was associated with fewer deaths in hospitalized patients (aRR = 0.51) compared with non-hospitalized patients (aRR = 2.5) (P-for-Interaction = 0.0071). Evaluating the effect of modification of these compounds in the context of hospitalization may aid in the management of COVID-19 and provide a better understanding of the pathophysiological mechanisms underlying this and future infectious disease outbreaks.
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Affiliation(s)
- Jimmy T. Efird
- Cooperative Studies Program Epidemiology Center, Durham VA Health Care System, Durham, NC 27705, USA; (T.S.R.); (A.D.T.); (A.M.P.); (J.U.); (C.D.W.); (A.S.)
| | | | - Charulata Jindal
- Harvard Medical School, Harvard University, Boston, MA 02115, USA;
| | - Thomas S. Redding
- Cooperative Studies Program Epidemiology Center, Durham VA Health Care System, Durham, NC 27705, USA; (T.S.R.); (A.D.T.); (A.M.P.); (J.U.); (C.D.W.); (A.S.)
| | - Andrew D. Thompson
- Cooperative Studies Program Epidemiology Center, Durham VA Health Care System, Durham, NC 27705, USA; (T.S.R.); (A.D.T.); (A.M.P.); (J.U.); (C.D.W.); (A.S.)
| | - Ashlyn M. Press
- Cooperative Studies Program Epidemiology Center, Durham VA Health Care System, Durham, NC 27705, USA; (T.S.R.); (A.D.T.); (A.M.P.); (J.U.); (C.D.W.); (A.S.)
| | - Julie Upchurch
- Cooperative Studies Program Epidemiology Center, Durham VA Health Care System, Durham, NC 27705, USA; (T.S.R.); (A.D.T.); (A.M.P.); (J.U.); (C.D.W.); (A.S.)
| | - Christina D. Williams
- Cooperative Studies Program Epidemiology Center, Durham VA Health Care System, Durham, NC 27705, USA; (T.S.R.); (A.D.T.); (A.M.P.); (J.U.); (C.D.W.); (A.S.)
- Department of Medicine, Duke University, Durham, NC 27710, USA
- Duke Cancer Institute, Duke University, Durham, NC 27710, USA
| | | | - Ayako Suzuki
- Cooperative Studies Program Epidemiology Center, Durham VA Health Care System, Durham, NC 27705, USA; (T.S.R.); (A.D.T.); (A.M.P.); (J.U.); (C.D.W.); (A.S.)
- Division of Gastroenterology, Duke University, Durham, NC 27710, USA
- The Division of Gastroenterology, Durham VA Medical Center, Durham, NC 27705, USA
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Jones HJ, Borges MC, Carnegie R, Mongan D, Rogers PJ, Lewis SJ, Thompson AD, Zammit S. Associations between plasma fatty acid concentrations and schizophrenia: a two-sample Mendelian randomisation study. Lancet Psychiatry 2021; 8:1062-1070. [PMID: 34735824 DOI: 10.1016/s2215-0366(21)00286-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 06/21/2021] [Accepted: 07/22/2021] [Indexed: 12/30/2022]
Abstract
BACKGROUND Although studies suggest that concentrations of omega-3 and omega-6 fatty acids are lower in individuals with schizophrenia, evidence for beneficial effects of fatty acid supplementation is scarce. Therefore, in this study, we aimed to determine whether omega-3 and omega-6 fatty acid concentrations are causally related to schizophrenia. METHODS We did a two-sample Mendelian randomisation study, using deidentified summary-level data that were publicly available. Exposure-outcome relationships were evaluated using the inverse variance weighted two-sample Mendelian randomisation method using results from genome-wide association studies (GWASs) of fatty acid concentrations and schizophrenia. GWAS results were available for European (fatty acids) and European and Asian (schizophrenia) ancestry samples. Overall age and gender information were not calculable from the summary-level GWAS results. Weighted median, weighted mode, and Mendelian randomisation Egger regression methods were used as sensitivity analyses. To address underlying mechanisms, further analyses were done using single instruments within the FADS gene cluster and ELOVL2 gene locus. FADS gene cluster and ELOVL2 gene causal effects on schizophrenia were calculated by dividing the single nucleotide polymorphism (SNP)-schizophrenia effect estimate by the SNP-fatty acid effect estimate with standard errors derived using the first term from a delta method expansion for the ratio estimate. Multivariable Mendelian randomisation was used to estimate direct effects of omega-3 fatty acids on schizophrenia, independent of omega-6 fatty acids, lipoproteins (ie, HDL and LDL), and triglycerides. FINDINGS Mendelian randomisation analyses indicated that long-chain omega-3 and long-chain omega-6 fatty acid concentrations were associated with a lower risk of schizophrenia (eg, inverse variance weighted odds ratio [OR] 0·83 [95% CI 0·75-0·92] for docosahexaenoic acid). By contrast, there was weak evidence that short-chain omega-3 and short-chain omega-6 fatty acids were associated with an increased risk of schizophrenia (eg, inverse variance weighted OR 1·07 [95% CI 0·98-1·18] for α-linolenic acid). Effects were consistent across the sensitivity analyses and the FADS single-SNP analyses, suggesting that long-chain omega-3 and long-chain omega-6 fatty acid concentrations were associated with lower risk of schizophrenia (eg, OR 0·74 [95% CI 0·58-0·96] for docosahexaenoic acid) whereas short-chain omega-3 and short-chain omega-6 fatty acid concentrations were associated with an increased risk of schizophrenia (eg, OR 1·08 [95% CI 1·02-1·15] for α-linolenic acid). By contrast, estimates from the ELOVL2 single-SNP analyses were more imprecise and compatible with both risk-increasing and protective effects for each of the fatty acid measures. Multivariable Mendelian randomisation indicated that the protective effect of docosahexaenoic acid on schizophrenia persisted after conditioning on other lipids, although evidence was slightly weaker (multivariable inverse variance weighted OR 0·84 [95% CI 0·71-1·01]). INTERPRETATION Our results are compatible with the protective effects of long-chain omega-3 and long-chain omega-6 fatty acids on schizophrenia, suggesting that people with schizophrenia might have difficulty converting short-chain polyunsaturated fatty acids to long-chain polyunsaturated fatty acids. Further studies are required to determine whether long-chain polyunsaturated fatty acid supplementation or diet enrichment might help prevent onset of schizophrenia. FUNDING National Institute for Health Research Biomedical Research Centre at University Hospitals Bristol and Weston NHS Foundation Trust and the University of Bristol.
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Affiliation(s)
- Hannah J Jones
- Centre for Academic Mental Health, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK; MRC Integrative Epidemiology Unit, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK; National Institute for Health Research Bristol Biomedical Research Centre, University Hospitals Bristol and Weston NHS Foundation Trust and the University of Bristol, Bristol, UK.
| | - Maria Carolina Borges
- MRC Integrative Epidemiology Unit, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Rebecca Carnegie
- Centre for Academic Mental Health, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - David Mongan
- Department of Psychiatry, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Peter J Rogers
- Nutrition and Behaviour Unit, School of Psychological Science, University of Bristol, Bristol, UK; National Institute for Health Research Bristol Biomedical Research Centre, University Hospitals Bristol and Weston NHS Foundation Trust and the University of Bristol, Bristol, UK
| | - Sarah J Lewis
- MRC Integrative Epidemiology Unit, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK; Bristol Dental School, University of Bristol, Bristol, UK
| | - Andrew D Thompson
- Division of Mental Health and Wellbeing, University of Warwick, Coventry, UK; Orygen, Centre of Youth Mental Health, Melbourne, Australia
| | - Stanley Zammit
- Centre for Academic Mental Health, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK; National Institute for Health Research Bristol Biomedical Research Centre, University Hospitals Bristol and Weston NHS Foundation Trust and the University of Bristol, Bristol, UK; MRC Centre for Neuropsychiatric Genetics and Genomics, Division of Psychological Medicine and Clinical Neurosciences, Cardiff University School of Medicine, Cardiff University, Cardiff, UK
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Clarke L, Chisholm K, Cappuccio FP, Tang NKY, Miller MA, Elahi F, Thompson AD. Sleep disturbances and the At Risk Mental State: A systematic review and meta-analysis. Schizophr Res 2021; 227:81-91. [PMID: 32646803 DOI: 10.1016/j.schres.2020.06.027] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 06/14/2020] [Accepted: 06/20/2020] [Indexed: 11/28/2022]
Abstract
AIMS To synthesise and investigate how sleep disturbances relate to psychotic symptoms, functioning and Quality of Life (QoL) in At Risk Mental State (ARMS) youth. METHOD A comprehensive search of six databases (MEDLINE, PsycINFO, Embase, CINAHL, Web of Science and CENTRAL) was conducted. Eligible studies provided data on sleep disturbances or disorders in ARMS patients. RESULTS Sixteen studies met the inclusion criteria (n = 1962 ARMS patients) including 7 cross-sectional studies, 2 RCT's and 7 cohort studies. Narrative synthesis revealed that self-reported sleep (e.g., general disturbances, fragmented night time sleep and nightmares) was poorer among ARMS patients compared to healthy controls. In the limited studies (n = 4) including objective measurements of sleep disturbances, ARMS patients experienced higher levels of movement during sleep, more daytime naps and increased sleep latency compared to controls. Furthermore, sleep disturbances were associated with attenuated psychotic symptoms and functional outcomes cross-sectionally and longitudinally. Only one study investigated the relationship between sleep and QoL. The exploratory meta-analysis revealed a significant difference in self-reported sleep disturbances measured by the PSQI (mean difference in score: 3.30 (95% CI 1.87, 4.74), p < 0.00001) and SIPS (mean difference in score: 1.58 (95% CI 0.80, 2.35), p < 0.00001) of ARMS patients compared to control groups. CONCLUSIONS ARMS individuals report impaired sleep quality and reduced sleep quantity compared to healthy controls. However, further research is needed to explore the longitudinal relationship between sleep disruptions and QoL in early psychosis. Significant variations in how sleep is measured across studies highlight a need to assess disturbances to sleep using robust and consistent approaches in this patient group.
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Affiliation(s)
- Latoya Clarke
- Mental Health and Wellbeing Division, Warwick Medical School, University of Warwick, Coventry, UK.
| | | | - Francesco P Cappuccio
- Mental Health and Wellbeing Division, Warwick Medical School, University of Warwick, Coventry, UK
| | - Nicole K Y Tang
- Department of Psychology, University of Warwick, Coventry, UK
| | - Michelle A Miller
- Mental Health and Wellbeing Division, Warwick Medical School, University of Warwick, Coventry, UK
| | - Farah Elahi
- Mental Health and Wellbeing Division, Warwick Medical School, University of Warwick, Coventry, UK
| | - Andrew D Thompson
- Mental Health and Wellbeing Division, Warwick Medical School, University of Warwick, Coventry, UK
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Thompson AD, Jones HJ, Heron J, Hibbeln J, Sullivan S, Zammit S. Omega-3 and Omega-6 fatty acids and risk of psychotic outcomes in the ALSPAC birth cohort. Schizophr Res 2020; 224:108-115. [PMID: 33067055 PMCID: PMC7738752 DOI: 10.1016/j.schres.2020.09.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 06/12/2020] [Accepted: 09/23/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Long chain polyunsaturated fatty acid (PUFA) levels have been implicated in the pathology of psychotic disorders. We investigated the relationship between childhood PUFA levels and later psychotic experiences (PE's) in a large birth cohort. METHODS Plasma levels of Ω-3 and Ω-6 fatty acids (FA's) were assayed at ages 7 and 16 years. PE's were assessed at ages 12 and 18 years using a semi-structured interview. Primary outcome was any PE's at 18 years; sensitivity analyses examined incident PE's between ages 12 and 18 years, persistent PE's (at 12 and 18) and psychotic disorder at 18 years. Genetic instruments for Ω-3 and Ω-6 were derived and used in a multivariable Mendelian Randomization analysis. RESULTS Higher levels of Ω-6 FA's AA, OA and AdA at age 7 years were weakly associated with a reduced risk for PE's at 18 years, however, effect sizes were small and attenuated after adjusting for confounders (strongest evidence for OA; adjusted OR, 0.842; 95% CI, 0.711, 0.998; p, 0.048). Total Ω-6 levels at age 16 years were associated with an increased odds of psychotic disorder at age 18 years. However, there was no association between Ω-6/Ω-3 ratio and psychosis outcomes, nor with genetic instruments of total Ω-3 or Ω-6 levels. CONCLUSIONS There is no strong evidence that total plasma Ω-3 FA levels or Ω-6/Ω-3 ratios in childhood and mid-adolescence are associated with increased risk for PE's or psychotic disorder, but very marginal evidence that alterations in the Ω-6 pathway at developmental time points might influence risk2.
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Affiliation(s)
- A D Thompson
- Division of Mental Health and Wellbeing, University of Warwick, UK; Orygen, the Centre of Excellence in Youth Mental Health, 35 Poplar Rd, Parkville, VIC 3250, Australia.
| | - H J Jones
- Centre for Academic Mental Health, Bristol Medical School, University of Bristol, Bristol, UK; NIHR Biomedical Research Centre at University Hospitals Bristol NHS Foundation Trust, University of Bristol, UK
| | - J Heron
- Centre for Academic Mental Health, Bristol Medical School, University of Bristol, Bristol, UK
| | - J Hibbeln
- Laboratory of Membrane Biochemistry and Biophysics, Section of Nutritional Neuroscience, National Institute for Health, Bethesda, USA
| | - S Sullivan
- Centre for Academic Mental Health, Bristol Medical School, University of Bristol, Bristol, UK; NIHR CLAHRC West, Whitefriars, Lewins Mead, Bristol, UK
| | - S Zammit
- Centre for Academic Mental Health, Bristol Medical School, University of Bristol, Bristol, UK; NIHR Biomedical Research Centre at University Hospitals Bristol NHS Foundation Trust, University of Bristol, UK; MRC Centre for Neuropsychiatric Genetics and Genomics, Division of Psychological Medicine and Clinical Neurosciences, Cardiff University, Cardiff, UK
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Francey SM, O’Donoghue B, Nelson B, Graham J, Baldwin L, Yuen HP, Kerr MJ, Ratheesh A, Allott K, Alvarez-Jimenez M, Fornito A, Harrigan S, Thompson AD, Wood S, Berk M, McGorry PD. Psychosocial Intervention With or Without Antipsychotic Medication for First-Episode Psychosis: A Randomized Noninferiority Clinical Trial. ACTA ACUST UNITED AC 2020. [DOI: 10.1093/schizbullopen/sgaa015] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Abstract
This triple-blind (participants, clinicians, and researchers) randomized controlled noninferiority trial examined whether intensive psychosocial intervention (cognitive-behavioral case management, CBCM) for first-episode psychosis (FEP) in 15–25 year-olds managed in a specialized early intervention for psychosis service was noninferior to usual treatment of antipsychotic medication plus CBCM delivered during the first 6 months of treatment. To maximize safety, participants were required to have low levels of suicidality and aggression, a duration of untreated psychosis (DUP) of less than 6 months, and be living in stable accommodation with social support. The primary outcome was level of functioning as assessed by the Social and Occupational Functioning Scale (SOFAS) at 6 months. Ninety young people were randomized by computer, 46 to placebo, and 44 antipsychotic medication and 33% of those who commenced trial medication completed the entire 6-month trial period. On the SOFAS, both groups improved, and group differences were small and clinically trivial, indicating that treatment with placebo medication was no less effective than conventional antipsychotic treatment (mean difference = −0.2, 2-sided 95% confidence interval = −7.5 to 7.0, t = 0.060, P = .95). Within the context of a specialized early intervention service, and with a short DUP, the immediate introduction of antipsychotic medication may not be required for all cases of FEP in order to see functional improvement. However, this finding can only be generalized to a very small proportion of FEP cases at this stage, and a larger trial is required to clarify whether antipsychotic-free treatment can be recommended for specific subgroups of those with FEP.
Trial Registration: ACTRN12607000608460 (www.anzctr.org.au).
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Affiliation(s)
- Shona M Francey
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Australia
| | - Brian O’Donoghue
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Australia
| | - Barnaby Nelson
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Australia
| | - Jessica Graham
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Australia
| | - Lara Baldwin
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Australia
| | - Hok Pan Yuen
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Australia
| | - Melissa J Kerr
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Australia
| | - Aswin Ratheesh
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Australia
| | - Kelly Allott
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Australia
| | - Mario Alvarez-Jimenez
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Australia
| | - Alex Fornito
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Clayton, Australia
- Monash Biomedical Imaging, Monash University, Clayton, Australia
| | - Susy Harrigan
- Centre for Mental Health, Melbourne School of Global and Population Health, The University of Melbourne, Parkville, Australia
| | - Andrew D Thompson
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Australia
| | - Stephen Wood
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Australia
| | - Michael Berk
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Australia
- Deakin University, IMPACT – the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia
- Department of Psychiatry, The University of Melbourne, Parkville, Australia
- Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Australia
| | - Patrick D McGorry
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Australia
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Tes D, Aber A, Zafar M, Horton L, Fotouhi A, Xu Q, Moiin A, Thompson AD, Moraes Pinto Blumetti TC, Daveluy S, Chen W, Nasiriavanaki M. Granular Cell Tumor Imaging Using Optical Coherence Tomography. Biomed Eng Comput Biol 2018; 9:1179597218790250. [PMID: 30116105 PMCID: PMC6088518 DOI: 10.1177/1179597218790250] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 05/04/2018] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Granular cell tumor (GCT) is a relatively uncommon tumor that may affect the skin. The tumor can develop anywhere on the body, although it is predominately seen in oral cavities and in the head and neck regions. Here, we present the results of optical coherence tomography (OCT) imaging of a large GCT located on the abdomen of a patient. We also present an analytical method to differentiate between healthy tissue and GCT tissues. MATERIALS AND METHODS A multibeam, Fourier domain, swept source OCT was used for imaging. The OCT had a central wavelength of 1305 ± 15 nm and lateral and axial resolutions of 7.5 and 10 µm, respectively. Qualitative and quantitative analyses of the tumor and healthy skin are reported. RESULTS Abrupt changes in architectures of the dermal and epidermal layers in the GCT lesion were observed. These architectural changes were not observed in healthy skin. DISCUSSION To quantitatively differentiate healthy skin from tumor regions, an optical attenuation coefficient analysis based on single-scattering formulation was performed. The methodology introduced here could have the capability to delineate boundaries of a tumor prior to surgical excision.
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Affiliation(s)
- David Tes
- Department of Biomedical Engineering, Wayne State University, Detroit, MI, USA
| | - Ahmed Aber
- School of Health and Related Research, The University of Sheffield, Sheffield, UK
| | - Mohsin Zafar
- Department of Biomedical Engineering, Wayne State University, Detroit, MI, USA
| | - Luke Horton
- Department of Dermatology, School of Medicine, Wayne State University, Detroit, MI, USA
| | - Audrey Fotouhi
- Department of Dermatology, School of Medicine, Wayne State University, Detroit, MI, USA
| | - Qiuyun Xu
- Department of Biomedical Engineering, Wayne State University, Detroit, MI, USA
| | - Ali Moiin
- Department of Dermatology, School of Medicine, Wayne State University, Detroit, MI, USA
| | - Andrew D Thompson
- Department of Pathology, School of Medicine, Wayne State University, Detroit, MI, USA
| | | | - Steven Daveluy
- Department of Dermatology, School of Medicine, Wayne State University, Detroit, MI, USA
| | - Wei Chen
- Department of Oncology, School of Medicine, Wayne State University, Detroit, MI, USA
| | - Mohammadreza Nasiriavanaki
- Department of Biomedical Engineering, Wayne State University, Detroit, MI, USA
- Department of Dermatology, School of Medicine, Wayne State University, Detroit, MI, USA
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Affiliation(s)
- Hisham Mrb Omer
- 1 University Hospitals Coventry and Warwickshire NHS Trust, Coventry, UK.,2 Warwick Medical School, University of Warwick, Coventry, UK
| | - Andrew D Thompson
- 2 Warwick Medical School, University of Warwick, Coventry, UK.,3 Coventry and Warwickshire Partnership Trust, Nuneaton, UK
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11
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Thompson AD, Chen C. The importance of constructive feedback: Implications of top-down regulation in the development of neural circuits. Neurogenesis (Austin) 2017; 4:e1287553. [PMID: 28331874 DOI: 10.1080/23262133.2017.1287553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 01/22/2017] [Indexed: 10/20/2022]
Abstract
Neural circuits in sensory pathways develop through a general strategy of overproduction of synapses followed by activity-driven pruning to fine-tune connectivity for optimal function. The early visual pathway, consisting of the retina → visual thalamus → primary visual cortex, has served for decades as a powerful model system for probing the mechanisms and logic of this process. In addition to these feedforward projections, the early visual pathway also includes a substantial feedback component in the form of corticothalamic projections from the deepest layer of primary visual cortex. The role of this feedback in visual processing has been studied extensively in mature animals, yet historically, its role in development has received comparatively little attention. Recent technological advances allowing for selective manipulation of neural activity in development led to the uncovering of a role for feedback in guiding the refinement of the forward projection from retina to visual thalamus. Here we discuss the implications of feedback exerting influence on the development of sensory pathways. We propose several possible advantages to constructing neural circuits with top-down regulation, and discuss the potential significance of this finding for certain neurologic disorders.
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Affiliation(s)
- Andrew D Thompson
- Department of Neurology, F.M. Kirby Neurobiology Center, Children's Hospital Boston , Boston, MA, USA
| | - Chinfei Chen
- Department of Neurology, F.M. Kirby Neurobiology Center, Children's Hospital Boston, Boston, MA, USA; Program in Neuroscience, Harvard Medical School, Boston, MA, USA
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12
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Thompson AD, Picard N, Min L, Fagiolini M, Chen C. Cortical Feedback Regulates Feedforward Retinogeniculate Refinement. Neuron 2016; 91:1021-1033. [PMID: 27545712 DOI: 10.1016/j.neuron.2016.07.040] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 06/08/2016] [Accepted: 07/08/2016] [Indexed: 01/23/2023]
Abstract
According to the prevailing view of neural development, sensory pathways develop sequentially in a feedforward manner, whereby each local microcircuit refines and stabilizes before directing the wiring of its downstream target. In the visual system, retinal circuits are thought to mature first and direct refinement in the thalamus, after which cortical circuits refine with experience-dependent plasticity. In contrast, we now show that feedback from cortex to thalamus critically regulates refinement of the retinogeniculate projection during a discrete window in development, beginning at postnatal day 20 in mice. Disrupting cortical activity during this window, pharmacologically or chemogenetically, increases the number of retinal ganglion cells innervating each thalamic relay neuron. These results suggest that primary sensory structures develop through the concurrent and interdependent remodeling of subcortical and cortical circuits in response to sensory experience, rather than through a simple feedforward process. Our findings also highlight an unexpected function for the corticothalamic projection.
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Affiliation(s)
- Andrew D Thompson
- BBS Program, Harvard Medical School, 220 Longwood Avenue, Boston, MA 02115, USA; Department of Neurology, F.M. Kirby Neurobiology Center, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, USA
| | - Nathalie Picard
- Department of Neurology, F.M. Kirby Neurobiology Center, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, USA
| | - Lia Min
- Department of Neurology, F.M. Kirby Neurobiology Center, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, USA; Program in Neuroscience, Harvard Medical School, 220 Longwood Avenue, Boston, MA 02115, USA
| | - Michela Fagiolini
- Department of Neurology, F.M. Kirby Neurobiology Center, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, USA; Program in Neuroscience, Harvard Medical School, 220 Longwood Avenue, Boston, MA 02115, USA
| | - Chinfei Chen
- Department of Neurology, F.M. Kirby Neurobiology Center, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, USA; Program in Neuroscience, Harvard Medical School, 220 Longwood Avenue, Boston, MA 02115, USA.
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Sullivan SA, Hollen L, Wren Y, Thompson AD, Lewis G, Zammit S. A longitudinal investigation of childhood communication ability and adolescent psychotic experiences in a community sample. Schizophr Res 2016; 173:54-61. [PMID: 26972475 PMCID: PMC4847740 DOI: 10.1016/j.schres.2016.03.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 03/03/2016] [Accepted: 03/04/2016] [Indexed: 12/03/2022]
Abstract
BACKGROUND Some childhood speech and language impairments precede psychosis but it is not clear whether they also precede adolescent psychotic experiences and whether this association is specific to psychotic experiences. METHODS Pragmatic language and expressive speech and language (parent-assessed using the Children's Communication Checklist) at age 9 and psychotic experiences and depression at ages 12 and 18 were investigated in 7659 participants from the Avon Longitudinal Study of Parents and Children. Associations were investigated using multivariate modelling. RESULTS Poorer pragmatic language at 9years was associated with psychotic experiences at both ages (12years OR 1.22, 95% CI 1.11, 1.34; 18years OR 1.25, 95% CI 1.10, 1.41) but only with depression at 18years (OR 1.10, 95% CI 1.00, 1.22). Poorer expressive speech and language ability was not associated with psychotic experiences or depression at either age. There was evidence that pragmatic language was specifically associated with psychotic experiences at age 12 but no evidence that the strength of any of the associations changed over time. CONCLUSIONS Deficits in pragmatic language precede early and late adolescent psychotic experiences and early adolescent depression. Interventions aimed at helping children improve pragmatic language skills may reduce the incidence of adolescent psychopathology and associated psychological disorder and dysfunction later in life.
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Affiliation(s)
- Sarah A Sullivan
- Centre for Academic Mental Health, University of Bristol, Oakfield House, Oakfield Grove, Bristol, UK; CLAHRC West, Whitefriars, Lewins Mead, Bristol, UK.
| | - Linda Hollen
- Centre for Child and Adolescent Health, University of Bristol, Oakfield House, Oakfield Grove, Bristol, UK.
| | - Yvonne Wren
- Bristol Speech and Language Therapy Research Unit, North Bristol NHS Trust, Frenchay Hospital, Bristol, UK.
| | - Andrew D Thompson
- Division of Mental Health and Wellbeing, University of Warwick, Coventry, UK.
| | - Glyn Lewis
- Division of Psychiatry, University College London Charles Bell House, Gower St, London, UK.
| | - Stan Zammit
- Centre for Academic Mental Health, University of Bristol, Oakfield House, Oakfield Grove, Bristol, UK; Institute of Psychological Medicine and Clinical Neurosciences, University of Cardiff, Haydn Ellis Building, Maindy Road, Cardiff, UK.
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Yung AR, Cotter J, Wood SJ, McGorry P, Thompson AD, Nelson B, Lin A. Childhood maltreatment and transition to psychotic disorder independently predict long-term functioning in young people at ultra-high risk for psychosis. Psychol Med 2015; 45:3453-3465. [PMID: 26166153 DOI: 10.1017/s003329171500135x] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Individuals identified as at ultra-high risk (UHR) for psychosis are at risk of poor functional outcome regardless of development of psychotic disorder. Studies examining longitudinal predictors of poor functioning have tended to be small and report only medium-term follow-up data. We sought to examine clinical predictors of functional outcome in a long-term longitudinal study. METHOD Participants were 268 (152 females, 116 males) individuals identified as UHR 2-14 years previously. A range of clinical and sociodemographic variables were assessed at baseline. Functioning at follow-up was assessed using the Social and Occupational Functioning Assessment Scale (SOFAS). RESULTS Baseline negative symptoms, impaired emotional functioning, disorders of thought content, low functioning, past substance use disorder and history of childhood maltreatment predicted poor functioning at follow-up in univariate analyses. Only childhood maltreatment remained significant in the multivariate analysis (p < 0.001). Transition to psychosis was also significantly associated with poor functioning at long-term follow-up [mean SOFAS score 59.12 (s.d. = 18.54) in the transitioned group compared to 70.89 (s.d. = 14.00) in the non-transitioned group, p < 0.001]. Childhood maltreatment was a significant predictor of poor functioning in both the transitioned and non-transitioned groups. CONCLUSIONS Childhood maltreatment and transition to psychotic disorder independently predicted poor long-term functioning. This suggests that it is important to assess history of childhood maltreatment in clinical management of UHR individuals. The finding that transition to psychosis predicts poor long-term functioning strengthens the evidence that the UHR criteria detect a subgroup at risk for schizophrenia.
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Affiliation(s)
- A R Yung
- Institute of Brain,Behaviour and Mental Health,University of Manchester,Manchester,UK
| | - J Cotter
- Institute of Brain,Behaviour and Mental Health,University of Manchester,Manchester,UK
| | - S J Wood
- School of Psychology,University of Birmingham,Birmingham,UK
| | - P McGorry
- Orygen,The National Centre of Excellence in Youth Mental Health,University of Melbourne,Melbourne,Australia
| | - A D Thompson
- Warwick Medical School,University of Warwick,Coventry,UK
| | - B Nelson
- Orygen,The National Centre of Excellence in Youth Mental Health,University of Melbourne,Melbourne,Australia
| | - A Lin
- Telethon Kids Institute,The University of Western Australia,Subiaco,Australia
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15
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Thompson AD, Nelson B, Yuen HP, Lin A, Amminger GP, McGorry PD, Wood SJ, Yung AR. Sexual trauma increases the risk of developing psychosis in an ultra high-risk "prodromal" population. Schizophr Bull 2014; 40:697-706. [PMID: 23455040 PMCID: PMC3984502 DOI: 10.1093/schbul/sbt032] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Studies indicate a high prevalence of childhood trauma in patient cohorts with established psychotic disorder and in those at risk of developing psychosis. A causal link between childhood trauma and development of psychosis has been proposed. We aimed to examine the association between experience of childhood trauma and the development of a psychotic disorder in a large "Ultra High Risk" (UHR) for psychosis cohort. The data were collected as part of a longitudinal cohort study of all UHR patients recruited to research studies at the Personal Assessment and Clinical Evaluation clinic between 1993 and 2006. Baseline data were collected at recruitment to these studies. The participants completed a comprehensive follow-up assessment battery (mean time to follow-up 7.5 years, range 2.4-14.9 years), which included the Childhood Trauma Questionnaire (CTQ), a self-report questionnaire that assesses experience of childhood trauma. The outcome of interest was transition to a psychotic disorder during the follow-up period. Data were available on 233 individuals. Total CTQ trauma score was not associated with transition to psychosis. Of the individual trauma types, only sexual abuse was associated with transition to psychosis (P = .02). The association remained when adjusting for potential confounding factors. Those with high sexual abuse scores were estimated to have a transition risk 2-4 times that of those with low scores. The findings suggest that sexual trauma may be an important contributing factor in development of psychosis for some individuals.
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Affiliation(s)
- Andrew D Thompson
- *To whom correspondence should be addressed; East Sussex Early Intervention Service, Sussex Partnership NHS Foundation Trust, Sussex Education Centre, Mill View Hospital, Nevill Avenue, Hove, BN3 7HZ, UK; tel: +441323446062, fax: 01323446064, e-mail:
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McGorry PD, Nelson B, Phillips LJ, Yuen HP, Francey SM, Thampi A, Berger GE, Amminger GP, Simmons MB, Kelly D, Dip G, Thompson AD, Yung AR. Randomized controlled trial of interventions for young people at ultra-high risk of psychosis: twelve-month outcome. J Clin Psychiatry 2013; 74:349-56. [PMID: 23218022 DOI: 10.4088/jcp.12m07785] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Accepted: 09/13/2012] [Indexed: 10/27/2022]
Abstract
OBJECTIVE The ultra-high risk clinical phenotype is associated with substantial distress and functional impairment and confers a greatly enhanced risk for transition to full-threshold psychosis. A range of interventions aimed at relieving current symptoms and functional impairment and reducing the risk of transition to psychosis has shown promising results, but the optimal type and sequence of intervention remain to be established. The aim of this study was to determine which intervention was most effective at preventing transition to psychosis: cognitive therapy plus low-dose risperidone, cognitive therapy plus placebo, or supportive therapy plus placebo. METHOD A double-blind, randomized, placebo-controlled 12-month trial of low-dose risperidone, cognitive therapy, or supportive therapy was conducted in a cohort of 115 clients of the Personal Assessment and Crisis Evaluation Clinic, a specialized service for young people at ultra-high risk of psychosis located in Melbourne, Australia. Recruitment commenced in August 2000 and ended in May 2006. The primary outcome measure was transition to full-threshold psychosis, defined a priori as frank psychotic symptoms occurring at least daily for 1 week or more and assessed using the Comprehensive Assessment of At-Risk Mental States. Secondary outcome measures were psychiatric symptoms, psychosocial functioning, and quality of life. RESULTS The estimated 12-month transition rates were as follows: cognitive therapy + risperidone, 10.7%; cognitive therapy + placebo, 9.6%; and supportive therapy + placebo, 21.8%. While there were no statistically significant differences between the 3 groups in transition rates (log-rank test P = .60), all 3 groups improved substantially during the trial, particularly in terms of negative symptoms and overall functioning. CONCLUSIONS The lower than expected, essentially equivalent transition rates in all 3 groups fail to provide support for the first-line use of antipsychotic medications in patients at ultra-high risk of psychosis, and an initial approach with supportive therapy is likely to be effective and carries fewer risks.
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Affiliation(s)
- Patrick D McGorry
- Orygen Youth Health Research Centre, Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia.
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Abstract
AIM A number of risk factors for developing a psychotic disorder have been investigated in the 'ultra high risk' (UHR) population, including neurocognitive abilities, social functioning and, more recently, social cognition. We aimed to review the literature on social cognition in the UHR population. METHODS Literature was restricted to English articles and identified using Pubmed, Medline, PsychINFO and CINAHLplus, as well as the reference lists of published studies and reviews. Search terms included social cognition, theory of mind, emotion recognition, attributional style, social knowledge, social perception, 'at risk mental state', psychosis prodrome 'clinical high risk' and 'ultra high risk'. Inclusion criteria were an outcome measure of a social cognition task and an UHR population defined by a structured validated instrument. RESULTS Seven original research articles met the inclusion criteria, one of which was a conference abstract. One of the two studies that assessed theory of mind, two of the four studies that assessed emotion recognition and both the two studies that assessed social perception/knowledge found significant deficits in UHR patients. The single study that assessed attributional bias also reported differences in UHR patients compared with healthy controls. CONCLUSIONS There is limited published literature on social cognitive performance in the UHR population. Despite this, deficits in certain social cognitive abilities do appear to be present, but further research with more reliable cross-cultural measures is needed. The characterization of social cognitive deficits in the UHR populations may aid in the identification of potential markers for development of a subsequent psychotic disorder, as well as targets for early intervention.
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Affiliation(s)
- Andrew D Thompson
- Orygen Youth Health and Research Centre, Centre for Adolescent Mental Health, Victoria, Australia.
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18
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Yung AR, Phillips LJ, Nelson B, Francey SM, PanYuen H, Simmons MB, Ross ML, Kelly D, Baker K, Amminger GP, Berger G, Thompson AD, Thampi A, McGorry PD. Randomized controlled trial of interventions for young people at ultra high risk for psychosis: 6-month analysis. J Clin Psychiatry 2011; 72:430-40. [PMID: 21034687 DOI: 10.4088/jcp.08m04979ora] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2008] [Accepted: 09/25/2009] [Indexed: 01/31/2023]
Abstract
OBJECTIVE Cognitive therapy and/or low-dose antipsychotic administered during the prodromal phase of schizophrenia may prevent or delay the onset of full-blown illness. However, it is unclear which of these treatments are most effective, how long treatment should be given, and whether effects will be sustained over a prolonged period. METHOD In order to examine these issues, we conducted a randomized controlled trial of cognitive therapy + risperidone; cognitive therapy + placebo; and supportive therapy + placebo in young people at ultra high risk for developing a psychotic disorder (that is, putatively prodromal). The main outcome was transition to psychotic disorder, with level of symptoms and functioning the secondary outcomes. This article reports the interim 6-month follow-up results. The study was conducted from August 2000 to May 2007. RESULTS Of a possible 464 eligible ultra high risk individuals, 115 were recruited to the randomized controlled trial (cognitive therapy + risperidone, n = 43; cognitive therapy + placebo, n = 44; and supportive therapy + placebo, n = 28). An additional 78 individuals agreed to follow-up assessments but not to randomization ("monitoring group," n = 78). At 6 months, 8 of the 115 participants (7.0%) and 4 of the monitoring group (5.1%) had developed psychotic disorder. There were no significant differences between the 3 randomized groups (log rank test, P = .92) or between all 4 groups (log rank test, P = .93). There was also no difference between the 4 groups in secondary measures, with all groups showing a reduction in symptoms and increased functioning. CONCLUSIONS Rates of transition to psychosis were lower than expected, particularly in the control supportive therapy + placebo group. This may have accounted for the negative finding, as the sample was therefore underpowered to find any difference between groups. Alternatively, it may be that all treatments were equally effective or equally ineffective at 6 months. TRIAL REGISTRATION http://www.anzctr.org.au Identifier: ACTRN012605000247673.
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Affiliation(s)
- Alison R Yung
- Orygen Research Centre and University of Melbourne, Department of Psychiatry, 35 Poplar Rd, Parkville 3052, Victoria, Australia.
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Thompson AD, Betz MW, Yoon DM, Fisher JP. Osteogenic differentiation of bone marrow stromal cells induced by coculture with chondrocytes encapsulated in three-dimensional matrices. Tissue Eng Part A 2009; 15:1181-90. [PMID: 18855520 DOI: 10.1089/ten.tea.2007.0275] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Endochondral ossification implicates chondrocyte signaling as an important factor in directing the osteogenic differentiation of mesenchymal stem cells in vivo. In this study, the osteoinductive capabilities of articular chondrocytes suspended in alginate hydrogels were analyzed via coculture with bone marrow stromal cells (BMSCs). In particular, the effect of chondrocyte coculture time on the mechanism underlying this osteogenic induction was examined. Chondrocytes were suspended in alginate beads and cultured above BMSCs in monolayer. Beads containing chondrocytes were removed after 1, 10, or 21 days of coculture. Quantitative reverse transcriptase polymerase chain reaction was used to assess the expression of alkaline phosphatase, bone morphogenetic protein-2, and osteocalcin by BMSCs after days 1, 8, 14, and 21. Calcium deposition was also assayed to characterize the extent of mineralization within cultures. Results indicate that osteogenic differentiation of BMSCs is initiated upon brief exposure to chondrocyte signaling, but requires continued exposure in order to progress fully and maintain an osteoblastic phenotype.
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Affiliation(s)
- Andrew D Thompson
- Department of Cell Biology and Genetics, University of Maryland, College Park, Maryland 20742, USA
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20
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Thompson AD, Angelotti T, Nag S, Mokha SS. Sex-specific modulation of spinal nociception by alpha2-adrenoceptors: differential regulation by estrogen and testosterone. Neuroscience 2008; 153:1268-77. [PMID: 18434028 DOI: 10.1016/j.neuroscience.2008.03.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2008] [Revised: 02/20/2008] [Accepted: 03/07/2008] [Indexed: 12/29/2022]
Abstract
Sex-related differences in antinociception produced by the activation of alpha(2)-adrenoceptors (alpha(2)-ARs) have been reported, however, the precise role of gonadal steroids is still unknown. Hence, we hypothesized that estrogen and testosterone modulate antinociceptive effects of clonidine (an alpha(2)-AR agonist) on N-methyl-D-aspartate- (NMDA) and heat-induced spinal nociception. We also investigated whether estrogen or testosterone alters the expression of alpha(2A)-adrenoceptors in the spinal cord. Sprague-Dawley (SD) rats were implanted with PE10 cannulae in the intrathecal space of the lumbosacral spinal cord and divided into male, proestrous and diestrous female, ovariectomized (OVX), estradiol-treated OVX (OVX+E), castrated male (GDX), testosterone (GDX+T) and estradiol-treated castrated male (GDX+E) groups. Clonidine dose-dependently inhibited NMDA-induced scratching behavior in the male and OVX groups but to a significantly lesser extent in the OVX+E group. It also increased the tail withdrawal latency in the male, OVX, diestrous and GDX+T groups but not in the OVX+E, proestrous, GDX and GDX+E groups. Levels of alpha(2A)-AR mRNA were significantly higher in the OVX, estradiol-treated OVX, GDX and GDX+E animals. In contrast, alpha(2A)-AR protein levels were higher in estradiol-treated OVX, GDX, GDX+T and GDX+E animals as compared with the male. Indeed, no correlations were observed between changes in the mRNA or protein levels of alpha(2A)-AR and behavioral observations. These results support our hypothesis that sex-related differences in alpha(2)-AR-mediated modulation of spinal nociception are gonadal hormone-dependent: estrogen attenuates antinociceptive effects in females whereas testosterone is required for the expression of antinociception in males. In addition, results also revealed that the mechanism of action of gonadal hormones may not involve a global alternation in expression of alpha(2A)-AR in the spinal cord. Estrogen-induced attenuation of alpha(2)-AR-mediated inhibition of nociception could contribute to the higher prevalence of pain syndromes in women.
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Affiliation(s)
- A D Thompson
- Department of Neurobiology and Neurotoxicology, Meharry Medical College, 1005 D.B. Todd Boulevard, Nashville, TN 37208, USA
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Affiliation(s)
- Mark Li-cheng Wu
- Department of Pathology and Laboratory Medicine, University of California Los Angeles School of Medicine, USA.
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Thompson AD, Pasieka JL, Kneafsey P, DiFrancesco LM. Hypopigmentation of a papillary carcinoma arising in a black thyroid. Mod Pathol 1999; 12:1181-5. [PMID: 10619273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
We report a case of an unpigmented papillary carcinoma arising in a black thyroid induced by minocycline. Black thyroid syndrome is an unusual pigmented change seen almost exclusively in patients on minocycline, apparently resulting from an oxidative interaction between thyroid peroxidase and the drug. Twenty-six cases have previously been reported in the English literature, nine of which described an associated thyroid neoplasm. Four of these nine neoplasms were described as pale or hypopigmented. The nature of the lesion against the background of pigmentation suggests diminished function of the thyroid peroxidase in this clonal population.
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Affiliation(s)
- A D Thompson
- Department of Pathology and Laboratory Medicine, University of Calgary and Foothills Medical Centre, Alberta, Canada
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Teitell MA, Thompson AD, Sorensen PH, Shimada H, Triche TJ, Denny CT. EWS/ETS fusion genes induce epithelial and neuroectodermal differentiation in NIH 3T3 fibroblasts. J Transl Med 1999; 79:1535-43. [PMID: 10616204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023] Open
Abstract
Ewing's sarcoma is the least differentiated member of the peripheral primitive neuroectodermal (pPNET) tumor family. Chromosomal translocations involving the EWS gene and five different Ets family transcription factor genes create fusion genes encoding aberrant transcription factors and are implicated in the vast majority of Ewing's sarcoma cases. Here, NIH 3T3 fibroblasts were infected with control (tk-neo or RAS) and two different EWS/ETS-expressing retroviruses. In vitro studies of established polyclonal lines expressing the two EWS/ETS genes, either EWS/FLI1 or EWS/ETV1, showed induction of cytokeratin 15 gene expression. Both fusion genes also caused characteristic gross morphologic, histologic, and ultrastructural changes in NIH 3T3 cells when transformed cell lines were injected into CB-17-scid mice. Native NIH 3T3 cells with a spindled cell morphology were converted to polygonal cells with high nucleo-cytoplasmic ratios that continued to express abundant cytokeratin. Extracellular collagen deposition was abolished, rough endoplasmic reticulum was markedly diminished, and rudimentary cell-cell attachments appeared. Most strikingly, neurosecretory-type dense core granules like those seen in pPNET were now evident. This murine model, created in mesenchyme-derived NIH 3T3 cells, demonstrated new characteristics of both neuroectodermal and epithelial differentiation and resembled small round cell tumors microscopically.
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Affiliation(s)
- M A Teitell
- Department of Pathology, Jonsson Comprehensive Cancer Center, University of California at Los Angeles, USA.
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24
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Abstract
Ewing's sarcomas express chimeric transcription factors resulting from a fusion of the amino terminus of the EWS gene to the carboxyl terminus of one of five ETS proteins. While the majority of tumors express EWS/FLI1 fusions, some Ewing's tumors contain variant chimeras such as EWS/ETV1 that have divergent ETS DNA-binding domains. In spite of their structural differences, both EWS/ETS fusions up regulate EAT-2, a previously described EWS/FLI1 target gene. In contrast to EWS/FLI1, NIH3T3 cells expressing EWS/ETV1 cannot form colonies in soft agar though coexpression of a dominant negative truncated ETV1 construct attenuates EWS/FLI1 mediated anchorage independent growth. When EWS/ETV1 or EWS/FLI1 expressing NIH3T3 cells are injected into SCID mice, tumors form more often and faster than with NIH-3T3 cells with empty vector controls. The tumorigenic potency of each EWS/ETS fusion is linked to its C-terminal structure, with the FLI1 C-terminus confering a greater tumorigenic potential than the corresponding ETV1 domain. The resulting EWS/ETV1 and EWS/FLI1 tumors closely resemble each other at both a macroscopic and a microscopic level. These tumors differ greatly from tumors formed by NIH3T3 cells expressing activated RAS. These data indicate that in spite of their structural differences, EWS/ETV1 and EWS/FLI1 promote oncogenesis via similar biologic pathways.
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Affiliation(s)
- A D Thompson
- Molecular Biology Institute, Gwynne Hazen Cherry Memorial Labs, University of California at Los Angeles, USA
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Arvand A, Bastians H, Welford SM, Thompson AD, Ruderman JV, Denny CT. EWS/FLI1 up regulates mE2-C, a cyclin-selective ubiquitin conjugating enzyme involved in cyclin B destruction. Oncogene 1998; 17:2039-45. [PMID: 9798675 DOI: 10.1038/sj.onc.1202129] [Citation(s) in RCA: 70] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The EWS/FLI1 fusion gene found in Ewing's sarcoma and primitive neuroectodermal tumor, is able to transform certain cell lines by acting as an aberrant transcription factor. The ability of EWS/FLI1 to modulate gene expression in cells transformed and resistant to transformation by EWS/FLI1, was assessed by Representational Difference Analysis (RDA). We found that the cyclin selective ubiquitin conjugase murine E2-C, was up regulated in NIH3T3 cells transformed by EWS/FLI1 but not in a nontransformed NIH3T3 clone expressing EWS/FLI1. We also found that mE2-C is upregulated in NIH3T3 cells transformed by other genes including activated cdc42, v-ABL and c-myc. We demonstrated that expression of mE2-C in both the EWS/FLI1 transformed and parent NIH3T3 lines varies with the cell cycle. Finally, dominant-negative mE2-C, created by changing a catalytic cysteine to serine, inhibits the in vitro ubiquitination and degradation of cyclin B in human HeLa cell extracts. These data suggest that part of the biologic effect of EWS/FLI1 could be to transcriptionally modulate genes involved in cell cycle regulation.
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Affiliation(s)
- A Arvand
- Department of Experimental Pathology/Laboratory Medicine, University of California, Los Angeles, USA
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26
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Abstract
EWS/FLI1, a fusion gene found in Ewing's sarcoma, encodes a transcriptional regulator and promotes cellular transformation by modulating the transcription of specific target genes. We have found that EWS/FLI1 and structurally related fusion proteins upregulate manic fringe (MFNG), a recently described member of the Fringe gene family instrumental in somatic development. MFNG is also expressed in human tumour-derived cell lines expressing EWS/FLI1. Overexpression of MFNG in NIH 3T3 cells renders them tumorigenic in mice with severe combined immunodeficiency disease (SCID). These data demonstrate that part of the oncogenic effect of EWS/FLI1 is to transcriptionally deregulate a member of a family of morphogenic genes.
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Affiliation(s)
- W A May
- Department of Pediatrics, University of Alabama at Birmingham School of Medicine, USA
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Thompson AD, Braun BS, Arvand A, Stewart SD, May WA, Chen E, Korenberg J, Denny C. EAT-2 is a novel SH2 domain containing protein that is up regulated by Ewing's sarcoma EWS/FLI1 fusion gene. Oncogene 1996; 13:2649-58. [PMID: 9000139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The EWS/FLI1 fusion protein is created by the translocation between chromosomes 11 and 22 that appears in most Ewing's sarcomas. This chimeric protein has been demonstrated to be an aberrant transcription factor. Genes up regulated by EWS/FLI1 but not by full-length FLI1 were identified by representational difference analysis (RDA). We have characterized a novel gene, EWS/FLI1 activated transcript 2 (EAT-2) that was cloned from a murine cDNA library using a differentially expressed RDA fragment. EAT-2 expression is seen within 4-8 h of EWS/FLI1 induction. Its expression correlates with transformation of NIH3T3 cells by chimeric proteins related to EWS/FLI1 but not by unrelated genes. EAT-2 is expressed in normal murine tissues and contains a unique but biochemically functional SH2 domain. An homologous sequence in the human genome has been identified and mapped to chromosome 1q22. Human EAT-2 transcripts were identified by reverse transcriptase-polymerase chain reaction (RT-PCR) in Ewing's sarcoma cell tumour cell lines. EAT-2's unique structure and correlation with transformation make it a candidate for playing a role in the transformation of NIH3T3 cells and the oncogenesis of Ewing's sarcoma.
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Affiliation(s)
- A D Thompson
- Molecular Biology Institute, University of California, Los Angeles 90095, USA
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Järvelä IE, Mitchison HM, O'Rawe AM, Munroe PB, Taschner PE, de Vos N, Lerner TJ, D'Arigo KL, Callen DF, Thompson AD. YAC and cosmid contigs spanning the Batten disease (CLN3) region at 16p12.1-p11.2. Genomics 1995; 29:478-89. [PMID: 8666398 DOI: 10.1006/geno.1995.9978] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A yeast artificial chromosome (YAC) contig has been constructed in 16p12.1-p11.2 that encompasses three loci (D16S288, D16S299, and D16S298) closely linked to the gene causing Batten disease or juvenile-onset neuronal ceroid lipofuscinosis (CLN3). The physical map has been ordered using 42 sequence tagged sites. Four genes, interleukin-4 receptor (IL4R), phenol-preferring phenol sulfotransferase (STP), monoamine-preferring phenol sulfotransferase (STM), and sialophorin (SPN), have been mapped to the YAC contig. A partial genomic restriction map has been constructed to confirm the order and distances between D16S298, predicted to be the locus closest to CLN3. The overlapping genomic clones are a valuable resource for cloning the Batten gene (CLN3) and other genes in the region.
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Affiliation(s)
- I E Järvelä
- Department of Paediatrics, UCL Medical School, Rayne Institute, London, United Kingdom
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29
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Mitchison HM, O'Rawe AM, Lerner TJ, Taschner PE, Schlumpf K, D'Arigo K, de Vos N, Gormally E, Phillips HA, Thompson AD. Refined localization of the Batten disease gene (CLN3) by haplotype and linkage disequilibrium mapping to D16S288-D16S383 and exclusion from this region of a variant form of Batten disease with granular osmiophilic deposits. Am J Med Genet 1995; 57:312-5. [PMID: 7668353 DOI: 10.1002/ajmg.1320570241] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Haplotype analysis in a collaborative collection of 143 families with juvenile-onset neuronal ceroid lipofuscinosis (JNCL) or Batten (Spielmeyer-Vogt-Sjögren) disease has permitted refined localization of the disease gene, CLN3, which was assigned to chromosome 16 in 1989. Recombination events in four maternal meioses delimit new flanking genetic markers for CLN3 which localize the gene to the chromosome interval 16p12.1-11.2 between microsatellite markers D16S288 and D16S383. This narrows the position of CLN3 to a region of 2.1 cM, a significant reduction from the previous best interval. Using haplotypes, analysis of the strong linkage disequilibrium that exists between genetic markers within the D16S288-D16S383 interval and CLN3 shows that CLN3 is in closest proximity to loci D16S299 and D16S298. Analysis of markers across the D16S288-D16S383 region in four families with a variant form of JNCL characterized histologically by cytosomal granular osmiophilic deposits (GROD) has excluded linkage of the gene locus to the CLN3 region of chromosome 16, suggesting that JNCL with GROD is not an allelic form of JNCL.
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Affiliation(s)
- H M Mitchison
- Department of Paediatrics, University College London Medical School, Rayne Institute, United Kingdom
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Taschner PE, de Vos N, Thompson AD, Callen DF, Doggett N, Mole SE, Dooley TP, Barth PG, Breuning MH. Chromosome 16 microdeletion in a patient with juvenile neuronal ceroid lipofuscinosis (Batten disease). Am J Hum Genet 1995; 56:663-8. [PMID: 7887420 PMCID: PMC1801154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
The gene that is involved in juvenile neuronal ceroid lipofuscinosis (JNCL), or Batten disease--CLN3--has been localized to 16p12, and the mutation shows a strong association with alleles of microsatellite markers D16S298, D16S299, and D16S288. Recently, haplotype analysis of a Batten patient from a consanguineous relationship indicated homozygosity for a D16S298 null allele. PCR analysis with different primers on DNA from the patient and his family suggests the presence of a cytogenetically undetectable deletion, which was confirmed by Southern blot analysis. The microdeletion is embedded in a region containing chromosome 16-specific repeated sequences. However, putative candidates for CLN3, members of the highly homologous sulfotransferase gene family, which are also present in this region in several copies, were not deleted in the patient. If the microdeletion in this patient is responsible for Batten disease, then we conclude that the sulfotransferase genes are probably not involved in JNCL. By use of markers and probes flanking D16S298, the maximum size of the microdeletion was determined to be approximately 29 kb. The microdeletion may affect the CLN3 gene, which is expected to be in close proximity to D16S298.
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Affiliation(s)
- P E Taschner
- Department of Human Genetics, Leiden University, The Netherlands
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31
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Casillas AM, Thompson AD, Cheshier S, Hernandez S, Aguilera RJ. RAG-1 and RAG-2 gene expression and V(D)J recombinase activity are enhanced by protein phosphatase 1 and 2A inhibition in lymphocyte cell lines. Mol Immunol 1995; 32:167-75. [PMID: 7898493 DOI: 10.1016/0161-5890(94)00142-n] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Expression of the recombination activating genes, RAG-1 and RAG-2, in lymphocytes, has been shown to depend on second messenger systems. An increase in intracellular cAMP upon stimulation with caffeine increases RAG expression while activation of protein kinase C (PKC) with phorbol myristate acetate (PMA) results in decreased RAG expression. The stringent regulation of recombination appears to be partially dependent on protein kinase activities which, alone, are not likely to be sufficient to regulate recombinase activity. We provide evidence implicating a role for serine/threonine phosphatases in the signal transduction pathway which regulates RAG gene expression and consequently the recombination process in lymphocytes. The cell permeable tumor promoter, calyculin-A (CLA), which is a potent inhibitor of the type 1 and 2A serine/threonine protein phosphatases (PP1 and PP2A, respectively), was shown to upregulate the expression of RAG-1 and RAG-2 in pre-B as well as mature B- and T-lymphocyte cell lines. Although agents such as caffeine known to increase intracellular cAMP levels induce RAG expression, synergy between CLA and caffeine was not detected in pre-B cells. An in vivo assessment of recombination activity after transfection of pre-B cells with an extrachromosomal recombination vector revealed a moderate increase in recombinase activity which paralleled RAG expression after CLA stimulation. Although increased cAMP levels in pre-B cells has been associated with upregulation of RAG expression we found no such upregulation in a surface immunoglobulin M positive (sIgM+) cell line, WEHI-231, and a T cell receptor positive (TCR+) murine cell line, EL-4. Moreover, in these mature lymphocyte cell lines there was no evidence of synergy in the regulation of RAG-1 and RAG-2 mRNA upon stimulation with CLA and caffeine. These results suggest novel intracellular mechanisms for the upregulation of RAG gene expression and confirm a role for type 1 and 2A phosphatases in the control of RAG gene expression and recombinase activity in lymphocyte cell lines.
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Affiliation(s)
- A M Casillas
- Department of Biology, University of California at Los Angeles 90024
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32
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Mitchison HM, Taschner PE, O'Rawe AM, de Vos N, Phillips HA, Thompson AD, Kozman HM, Haines JL, Schlumpf K, D'Arigo K. Genetic mapping of the Batten disease locus (CLN3) to the interval D16S288-D16S383 by analysis of haplotypes and allelic association. Genomics 1994; 22:465-8. [PMID: 7806237 DOI: 10.1006/geno.1994.1412] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
CLN3, the gene for juvenile-onset neuronal ceroid lipofuscinosis (JNCL) or Batten disease, has been localized by genetic linkage analysis to chromosome 16p between loci D16S297 and D16S57. We have now further refined the localization of CLN3 by haplotype analysis using two new microsatellite markers from loci D16S383 and SPN in the D16S297-D16S57 interval on a larger collaborative family resource consisting of 142 JNCL pedigrees. Crossover events in 3 maternal meioses define new flanking markers for CLN3 and localize the gene to the interval at 16p12.1-p11.2 between D16S288 and D16S383, which corresponds to a genetic distance of 2.1 cM. Within this interval 4 microsatellite loci are in strong linkage disequilibrium with CLN3, and extended haplotype analysis of the associated alleles indicates that CLN3 is in closest proximity to loci D16S299 and D16S298.
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Affiliation(s)
- H M Mitchison
- Department of Paediatrics, University College London Medical School, Rayne Institute, United Kingdom
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Abstract
AbstractHooded warblers Wilsonia citrina use two modes of singing, repeat mode (one pattern sung repeatedly) and mixed mode (2-4 other patterns sung in irregular sequence). Intensive focal-individual sampling of 14 males documented the use of these modes of singing throughout the nesting cycle. Males of different ages (first breeding season or later) did not differ in use of the two modes. Time spent singing in repeat mode decreased markedly after acquiring a mate, but time spent singing mixed mode did not change significantly across stages of the nesting cycle. Males sang more when their neighbors sang at a distance of 25 m or more. Repeat mode increased in this situation before a male acquired a mate, while mixed mode increased afterwards. Near a neighbor (within 25 m), males avoided use of repeat mode. Nearby females before the onset of incubation evoked increased use of repeat mode. More distant, calling females elicited little response before incubation, but thereafter calling females tended to suppress all singing. Males used mixed mode proportionately more in locations nearer neighbors. There were no indications that variation in singing influenced the dates on which males acquired mates. Unmated males late in the breeding season sang persistently in repeat mode, even more than eventually mated males had early in the season before they acquired mates. These results provide support, with some reservations, for three hypotheses for the evolution of distinct modes of singing: (1) specializations for male and female listeners; (2) specializations for indicating conditional behavioral tendencies; and (3) specializations for communication in low- and high-noise situations. These hypotheses are not mutually exclusive, and all three in combination might offer the strongest explanation for the evolution of distinct singing modes in this species and other paruline warblers.
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Affiliation(s)
- Andrew D. Thompson
- 1Department of Biology, University of North Carolina, Chapel Hill, NC 27599-3280, U.S.A
| | - R. Haven Wiley
- 2Department of Biology, University of North Carolina, Chapel Hill, NC 27599-3280, U.S.A
| | - Renée Godard
- 3Department of Biology, University of North Carolina, Chapel Hill, NC 27599-3280, U.S.A
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Callen DF, Thompson AD, Shen Y, Phillips HA, Richards RI, Mulley JC, Sutherland GR. Incidence and origin of "null" alleles in the (AC)n microsatellite markers. Am J Hum Genet 1993; 52:922-7. [PMID: 8488841 PMCID: PMC1682051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Twenty-three (AC)n repeat markers from chromosome 16 were typed in the parents of the 40 CEPH (Centre d'Etude du Polymorphisme Humain) families. Where parents were informative, the entire families were then typed. There were seven markers in which null alleles were demonstrated, as recognized by the apparent noninheritance, by a sib, of a parental allele. Four of these markers showed a null allele in a single sibship, while in the other three at least 30% of the CEPH sibships were shown to have a null allele segregating. One null allele was sequenced and shown to be the result of an 8-bp deletion occurring within the priming sequence for PCR amplification of the (AC)n repeats. In gene mapping or in application to diagnosis, the presence of a segregating null allele will not corrupt the linkage data but could result in loss of information. In isolated instances a segregating null allele may be interpreted as nonpaternity. The presence of a null allele may generate misleading data when individuals are haplotyped to determine the presence of linkage disequilibrium with a disease gene.
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Affiliation(s)
- D F Callen
- Department of Cytogenetics and Molecular Genetics, Women's and Children's Hospital, North Adelaide, South Australia
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Mitchison HM, Thompson AD, Mulley JC, Kozman HM, Richards RI, Callen DF, Stallings RL, Doggett NA, Attwood J, McKay TR. Fine genetic mapping of the Batten disease locus (CLN3) by haplotype analysis and demonstration of allelic association with chromosome 16p microsatellite loci. Genomics 1993; 16:455-60. [PMID: 8314582 DOI: 10.1006/geno.1993.1210] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Batten disease, juvenile onset neuronal ceroid lipofuscinosis, is an autosomal recessive neurodegenerative disorder characterized by accumulation of autofluorescent lipopigment in neurons and other cell types. The disease locus (CLN3) has previously been assigned to chromosome 16p. The genetic localization of CLN3 has been refined by analyzing 70 families using a high-resolution map of 15 marker loci encompassing the CLN3 region on 16p. Crossovers in three maternal meioses allowed localization of CLN3 to the interval between D16S297 and D16S57. Within that interval alleles at three highly polymorphic dinucleotide repeat loci (D16S288, D16S298, D16S299) were found to be in strong linkage disequilibrium with CLN3. Analysis of haplotypes suggests that a majority of CLN3 chromosomes have arisen from a single founder mutation.
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Affiliation(s)
- H M Mitchison
- Department of Paediatrics, University College London Medical School, Rayne Institute, United Kingdom
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36
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Phillips HA, Thompson AD, Kozman HM, Sutherland GR, Mulley JC. A microsatellite marker within the duplicated D16S79 locus has a null allele; significance for linkage mapping. Cytogenet Cell Genet 1993; 64:131-2. [PMID: 8334897 DOI: 10.1159/000133570] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The dinucleotide repeat 16AC66f3 was characterised from D16S79A within a duplicated section of 16p13.11, which is duplicated on all normal chromosome 16's. This marker has a common null allele caused by polymorphism within one of the primer sites. A redesigned primer overcame this problem; however, this allowed amplification of two dinucleotide repeats, at D16S79A and D16S79B, with an overlapping and uninterpretable distribution of alleles. Thus, the 16AC66F3 marker with a null allele is potentially useful for linkage mapping, as it avoids the ambiguity associated with the genotyping of homologous AC repeats at this duplicated locus. The distribution of additional D16S79 RFLPs flanking FRA16A is clarified.
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Affiliation(s)
- H A Phillips
- Department of Cytogenetics and Molecular Genetics, Adelaide Children's Hospital, North Adelaide, Australia
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37
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Mitchison HM, Williams RE, McKay TR, Callen DF, Thompson AD, Mulley JC, Stallings RL, Hildebrand CE, Moyzis RK, Järvelä I. Refined genetic mapping of juvenile-onset neuronal ceroid-lipofuscinosis on chromosome 16. J Inherit Metab Dis 1993; 16:339-41. [PMID: 8105142 DOI: 10.1007/bf00710278] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- H M Mitchison
- Department of Paediatrics, UCL Medical School, Rayne Institute, London, UK
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38
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Callen DF, Doggett NA, Stallings RL, Chen LZ, Whitmore SA, Lane SA, Nancarrow JK, Apostolou S, Thompson AD, Lapsys NM. High-resolution cytogenetic-based physical map of human chromosome 16. Genomics 1992; 13:1178-85. [PMID: 1505951 DOI: 10.1016/0888-7543(92)90035-q] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A panel of 54 mouse/human somatic cell hybrids, each possessing various portions of chromosome 16, was constructed; 46 were constructed from naturally occurring rearrangements of this chromosome, which were ascertained in clinical cytogenetics laboratories, and a further 8 from rearrangements spontaneously arising during tissue culture. By mapping 235 DNA markers to this panel of hybrids, and in relation to four fragile sites and the centromere, a cytogenetic-based physical map of chromosome 16 with an average resolution of 1.6 Mb was generated. Included are 66 DNA markers that have been typed in the CEPH pedigrees, and these will allow the construction of a detailed correlation of the cytogenetic-based physical map and the genetic map of this chromosome. Cosmids from chromosome 16 that have been assembled into contigs by use of repetitive sequence fingerprinting have been mapped to the hybrid panel. Approximately 11% of the euchromatin is now both represented in such contigs and located on the cytogenetic-based physical map. This high-resolution cytogenetic-based physical map of chromosome 16 will provide the basis for the cloning of genetically mapped disease genes, genes disrupted in cytogenetic rearrangements that have produced abnormal phenotypes, and cancer breakpoints.
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Affiliation(s)
- D F Callen
- Department of Cytogenetics and Molecular Genetics, Adelaide Children's Hospital, Australia
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39
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Thompson AD, Shen Y, Holman K, Sutherland GR, Callen DF, Richards RI. Isolation and characterisation of (AC)n microsatellite genetic markers from human chromosome 16. Genomics 1992; 13:402-8. [PMID: 1612599 DOI: 10.1016/0888-7543(92)90260-y] [Citation(s) in RCA: 56] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A cosmid library of human chromosome 16 has been subcloned, and (AC)n microsatellite positive clones have been identified and sequenced. Oligonucleotide primers flanking the repeat were designed and synthesized for (AC)n microsatellites with n greater than 16. These microsatellite loci were then mapped by PCR using a somatic cell hybrid panel of human chromosome 16, and their heterozygosities and allele frequencies determined. Fourteen (AC)n microsatellites were mapped to discrete physical intervals of human chromosome 16 defined by a mouse/human hybrid panel. Nine of these have expected heterozygosities ranging between 0.60 and 0.79, four have expected heterozygosities between 0.02 and 0.49, and one detected three loci where the alleles could not be resolved.
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Affiliation(s)
- A D Thompson
- Department of Cytogenetics and Molecular Genetics, Adelaide Children's Hospital, Australia
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Baker MC, Spitler-Nabors KJ, Thompson AD, Cunningham MA. Reproductive behaviour of female white-crowned sparrows: effect of dialects and synthetic hybrid songs. Anim Behav 1987. [DOI: 10.1016/s0003-3472(87)80069-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Richardson MC, Hirji MR, Thompson AD, Masson GM. Iodination of a long-acting analogue of luteinizing hormone releasing hormone: separation of reaction products by column liquid chromatography and measurement of biological activity. J Chromatogr 1986; 374:370-7. [PMID: 3514647 DOI: 10.1016/s0378-4347(00)83294-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Abstract
Dispersed luteal cells were prepared both from samples of human corpora lutea obtained during normal menstrual cycles and from luteinized rat ovaries of animals pretreated with pregnant mare's serum gonadotrophin and human chorionic gonadotrophin (hCG). Addition of the long-acting analogue, D-Ala6-des-Gly10-LH releasing hormone ethylamide (D-Ala6-LHRH), to rat luteal cells caused a small but significant increase in progesterone production. An inhibitory action of the analogue on hCG-stimulated steroidogenesis by rat luteal cells was confirmed. Addition of D-Ala6-LHRH to suspensions of human luteal cells had no effect on either basal or hCG-stimulated progesterone production. Studies on the interaction of 125I-labelled D-Ala6-LHRH with the dispersed cell preparations, while confirming the presence of displaceable binding to rat luteal cells, failed to detect any equivalent binding to human luteal cells. Low levels of displaceable binding observed using homogenates of human corpora lutea are interpreted as being of doubtful physiological significance in view of the negative findings obtained with the intact cell system.
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Hamilton S, Thompson AD, Jamieson WR, Turnbull KW. Arteriography in catheter-induced rupture of the pulmonary artery. J Can Assoc Radiol 1983; 34:326-327. [PMID: 6668302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Rupture of the pulmonary artery is a potential complication of the use of a Swan-Ganz catheter. We report a single case in which the site of rupture was visualized on a postmortem arteriogram, but was not apparent on a contrast radiograph performed prior to death, presumably due to inadequate filling of the arterial tree with contrast. Awareness of the value of a properly performed arteriogram may allow a lifesaving lobectomy or pneumonectomy.
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