42 results on '"Broome, M. R."'
Search Results
2. Phenomenology as a resource for translational research in mental health: methodological trends, challenges and new directions.
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Ritunnano, R., Papola, D., Broome, M. R., and Nelson, B.
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PSYCHIATRIC research ,TRANSLATIONAL research ,PHENOMENOLOGY ,MENTAL illness ,MEDICAL research ,OLANZAPINE - Abstract
This editorial reflects on current methodological trends in translational research in mental health. It aims to build a bridge between two fields that are frequently siloed off from each other: interventional research and phenomenologically informed research. Recent years have witnessed a revival of phenomenological approaches in mental health, often - but not only - as a means of connecting the subjective character of experience with neurobiological explanatory accounts of illness. Rich phenomenological knowledge accrued in schizophrenia, and wider psychosis research, has opened up new opportunities for improving prediction, early detection, diagnosis, prognostic stratification, treatment and ethics of care. Novel qualitative studies of delusions and hallucinations have challenged longstanding assumptions about their nature and meaning, uncovering highly complex subjective dimensions that are not adequately captured by quantitative methodologies. Interdisciplinary and participatory research efforts, informed by phenomenological insights, have prompted revisions of pre-established narratives of mental disorder dominated by a dysfunction framework and by researcher-centric outcome measures. Despite these recent advances, there has been relatively little effort to integrate and translate phenomenological insights across applied clinical research, with the goal of producing more meaningful, patient-valued results. It is our contention that phenomenological psychopathology - as the basic science of psychiatry - represents an important methodology for advancing evidence-based practices in mental health, and ultimately improving real-world outcomes. Setting this project into motion requires a greater emphasis on subjectivity and the structures of experience, more attention to the quality and patient-centredness of outcome measures, and the identification of treatment targets that matter most to patients. [ABSTRACT FROM AUTHOR]
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- 2023
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3. Mood instability: significance, definition and measurement
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Broome, M. R., Saunders, K. E. A., Harrison, P. J., and Marwaha, S.
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- 2015
4. Antipsychotic medication versus psychological intervention versus a combination of both in adolescents with first-episode psychosis (MAPS): a multicentre, three-arm, randomised controlled pilot and feasibility study
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Morrison, A P, Pyle, M, Maughan, D, Johns, L, Freeman, D, Broome, M R, Husain, N, Fowler, D, Hudson, J, MacLennan, G, Norrie, J, Shiers, D, Hollis, C, James, A, Birchwood, M, Bhogal, R, Bowe, S, Byrne, R, Clacey, J, Davies, L, Yung, Alison, Morrison, A P, Pyle, M, Maughan, D, Johns, L, Freeman, D, Broome, M R, Husain, N, Fowler, D, Hudson, J, MacLennan, G, Norrie, J, Shiers, D, Hollis, C, James, A, Birchwood, M, Bhogal, R, Bowe, S, Byrne, R, Clacey, J, Davies, L, and Yung, Alison
- Abstract
Background: Evidence for the effectiveness of treatments in early-onset psychosis is sparse. Current guidance for the treatment of early-onset psychosis is mostly extrapolated from trials in adult populations. The UK National Institute for Health and Care Excellence has recommended evaluation of the clinical effectiveness and cost-effectiveness of antipsychotic drugs versus psychological intervention (cognitive behavioural therapy [CBT] and family intervention) versus the combination of these treatments for early-onset psychosis. The aim of this study was to establish the feasibility of a randomised controlled trial of antipsychotic monotherapy, psychological intervention monotherapy, and antipsychotics plus psychological intervention in adolescents with first-episode psychosis. Methods: We did a multicentre pilot and feasibility trial according to a randomised, single-blind, three-arm, controlled design. We recruited participants from seven UK National Health Service Trust sites. Participants were aged 14–18 years; help-seeking; had presented with first-episode psychosis in the past year; were under the care of a psychiatrist; were showing current psychotic symptoms; and met ICD-10 criteria for schizophrenia, schizoaffective disorder, or delusional disorder, or met the entry criteria for an early intervention for psychosis service. Participants were assigned (1:1:1) to antipsychotics, psychological intervention (CBT with optional family intervention), or antipsychotics plus psychological intervention. Randomisation was via a web-based randomisation system, with permuted blocks of random size, stratified by centre and family contact. CBT incorporated up to 26 sessions over 6 months plus up to four booster sessions, and family intervention incorporated up to six sessions over 6 months. Choice and dose of antipsychotic were at the discretion of the treating consultant psychiatrist. Participants were followed up for a maximum of 12 months. The primary outcome was
- Published
- 2020
5. Subjective disturbances in emerging psychosis
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Thompson, Andrew D, Broome, Matthew R, Thompson, A D ( Andrew D ), Broome, M R ( Matthew R ), Schultze-Lutter, Frauke, Michel, Chantal, Flückiger, Rahel, Theodoridou, Anastasia; https://orcid.org/0000-0003-4792-385X, Thompson, Andrew D, Broome, Matthew R, Thompson, A D ( Andrew D ), Broome, M R ( Matthew R ), Schultze-Lutter, Frauke, Michel, Chantal, Flückiger, Rahel, and Theodoridou, Anastasia; https://orcid.org/0000-0003-4792-385X
- Published
- 2020
6. Thalamic Glutamate Levels as a Predictor of Cortical Response During Executive Functioning in Subjects at High Risk for Psychosis
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Fusar-Poli, P., Stone, J. M., Broome, M. R., Valli, I., Mechelli, A., McLean, M. A., Lythgoe, D. J., OʼGorman, R. L., Barker, G. J., and McGuire, P. K.
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- 2011
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7. Neural correlates of visuospatial working memory in the ‘at-risk mental state’
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Broome, M. R., Fusar-Poli, P., Matthiasson, P., Woolley, J. B., Valmaggia, L., Johns, L. C., Tabraham, P., Bramon, E., Williams, S. C. R., Brammer, M. J., Chitnis, X., Zelaya, F., and McGuire, P. K.
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- 2010
8. Neural correlates of movement generation in the ‘at-risk mental state’
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Broome, M. R., Matthiasson, P., Fusar-Poli, P., Woolley, J. B., Johns, L. C., Tabraham, P., Bramon, E., Valmaggia, L., Williams, S. C. R., Brammer, M. J., Chitnis, X., and McGuire, P. K.
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- 2010
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9. Economic impact of early intervention in people at high risk of psychosis
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Valmaggia, L. R., McCrone, P., Knapp, M., Woolley, J. B., Broome, M. R., Tabraham, P., Johns, L. C., Prescott, C., Bramon, E., Lappin, J., Power, P., and McGuire, P. K.
- Published
- 2009
10. Neural Circuitry of Novelty Salience Processing in Psychosis Risk: Association With Clinical Outcome
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Modinos, G., Allen, P. M., Zugman, A., Dima, D., Azis, M., Samson, C., Bonoldi, I., Quinn, B., Gifford, G. W. G., Smart, S. E., Antoniades, M., Bossong, M. G., Broome, M. R., Perez, J., Howes, O. D., Stone, J. M., Grace, A. A., and McGuire, P.
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nervous system ,RC0321 ,BF - Abstract
Psychosis has been proposed to develop from dysfunction in a hippocampal-striatal-midbrain circuit, leading to aberrant salience processing. Here, we used functional magnetic resonance imaging (fMRI) during novelty salience processing to investigate this model in people at clinical high risk (CHR) for psychosis according to their subsequent clinical outcomes. Seventy-six CHR participants as defined using the Comprehensive Assessment of At-Risk Mental States (CAARMS) and 31 healthy controls (HC) were studied while performing a novelty salience fMRI task that engaged an a priori hippocampal-striatal-midbrain circuit of interest. The CHR sample was then followed clinically for a mean of 59.7 months (~5 y), when clinical outcomes were assessed in terms of transition (CHR-T) or non-transition (CHR-NT) to psychosis (CAARMS criteria): during this period, 13 individuals (17%) developed a psychotic disorder (CHR-T) and 63 did not. Functional activation and effective connectivity within a hippocampal-striatal-midbrain circuit were compared between groups. In CHR individuals compared to HC, hippocampal response to novel stimuli was significantly attenuated (P = .041 family-wise error corrected). Dynamic Causal Modelling revealed that stimulus novelty modulated effective connectivity from the hippocampus to the striatum, and from the midbrain to the hippocampus, significantly more in CHR participants than in HC. Conversely, stimulus novelty modulated connectivity from the midbrain to the striatum significantly less in CHR participants than in HC, and less in CHR participants who subsequently developed psychosis than in CHR individuals who did not become psychotic. Our findings are consistent with preclinical evidence implicating hippocampal-striatal-midbrain circuit dysfunction in altered salience processing and the onset of psychosis.
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- 2019
11. Delusion formation and reasoning biases in those at clinical high risk for psychosis
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BROOME, M. R., JOHNS, L. C., VALLI, I., WOOLLEY, J. B., TABRAHAM, P., BRETT, C., VALMAGGIA, L., PETERS, E., GARETY, P. A., and McGUIRE, P. K.
- Published
- 2007
12. Study protocol for a randomised controlled trial of CBT vs antipsychotics vs both in 14-18-year-olds: Managing Adolescent first episode Psychosis: A feasibility study (MAPS)
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Pyle, M, Broome, M R, Joyce, E, MacLennan, G, Norrie, J, Freeman, D, Fowler, D, Haddad, P M, Shiers, D, Hollis, C, Smith, J, Liew, A, Byrne, R E, French, P, Peters, S, Hudson, J, Davies, L, Emsley, R, Yung, Alison, Birchwood, M, Longden, E, Morrison, A P, Pyle, M, Broome, M R, Joyce, E, MacLennan, G, Norrie, J, Freeman, D, Fowler, D, Haddad, P M, Shiers, D, Hollis, C, Smith, J, Liew, A, Byrne, R E, French, P, Peters, S, Hudson, J, Davies, L, Emsley, R, Yung, Alison, Birchwood, M, Longden, E, and Morrison, A P
- Published
- 2019
13. THE SILVER COINS OF BAYBARS I WITHOUT MINT NAME
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Broome, M. R.
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- 1979
14. The 1780 Restrike Talers of Maria Theresia
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BROOME, M. R.
- Published
- 1972
15. Concepts of Mental Disorders in Trainee Clinical Psychologists
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Read, R., primary, Moberly, N. J., additional, Salter, D., additional, and Broome, M. R., additional
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- 2016
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16. Understanding auditory verbal hallucinations: a systematic review of current evidence
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Upthegrove, R., primary, Broome, M. R., additional, Caldwell, K., additional, Ives, J., additional, Oyebode, F., additional, and Wood, S. J., additional
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- 2015
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17. Concepts of Mental Disorders in Trainee Clinical Psychologists.
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Read, R., Moberly, N. J., Salter, D., and Broome, M. R.
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ATTITUDE (Psychology) ,FACTOR analysis ,MEDICAL personnel ,MENTAL health personnel ,MENTAL illness ,PSYCHOLOGISTS ,MATHEMATICAL models of psychology ,QUESTIONNAIRES ,CLINICAL competence ,EDUCATION - Abstract
Background The models of mental disorders held by all mental health professionals are implicit in their attitudes and inform all aspects of theory and practice. The present study aims to explore the attitudes of trainee clinical psychologists towards mental disorders by building on a study conducted by Harland et al. () with psychiatrists. In so doing, the present study contributes to an evidence base that can inform the development of clinical training programs and multidisciplinary working. Methods The Maudsley Attitude Questionnaire was administered in an online survey of trainee clinical psychologists ( n = 289). Results Analyses of variance revealed main effects of model, and of diagnostic category, and a significant interaction effect between model and diagnostic category. Principal component analysis revealed a biological-psychosocial continuum and cognitive/behavioural and psychodynamic/spiritual dimensions. Comparisons with Harland et al.'s () psychiatrists revealed large differences, particularly in biological and social constructionist model endorsement. Conclusion Results suggest that the attitudes of psychologists and psychiatrists continue to sit at opposite ends of a biological-psychosocial continuum. However, an area of consensus regarding psychotherapeutic models was indicated. Training courses can be reassured that strong opinions tended to reflect the evidence base. Future research with similarly large representative samples from different disciplines would allow findings of the current study to be better contextualized. Copyright © 2016 John Wiley & Sons, Ltd. Key Practitioner Message The models of mental disorders held by clinical psychologists are implicit in their attitudes and inform all aspects of theory and practice., We found that trainee clinical psychologists continue to favour psychosocial over biological understandings of mental disorders, giving the cognitive, behavioural and psychodynamic models equal value overall, and stronger attitudes were supported by the evidence base., We found that trainee clinical psychologists organized their attitudes around a biological-psychosocial continuum and cognitive/behavioural and psychodynamic/spiritual dimensions., These findings may be useful for those involved in developing clinical training programs and multidisciplinary working because they provide an insight into the attitudes of emerging clinical psychologists. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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18. Thalamic glutamate levels as a predictor of cortical response during executive functioning in subjects at high risk for psychosis
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Fusar-Poli, P, Stone, J M, Broome, M R, Valli, I, Mechelli, A, McLean, M A, Lythgoe, D J, O'Gorman, R L; https://orcid.org/0000-0001-5932-7786, Barker, G J, McGuire, P K, Fusar-Poli, P, Stone, J M, Broome, M R, Valli, I, Mechelli, A, McLean, M A, Lythgoe, D J, O'Gorman, R L; https://orcid.org/0000-0001-5932-7786, Barker, G J, and McGuire, P K
- Abstract
CONTEXT: Alterations in glutamatergic neurotransmission and cerebral cortical dysfunction are thought to be central to the pathophysiology of psychosis, but the relationship between these 2 factors is unclear. OBJECTIVE: To investigate the relationship between brain glutamate levels and cortical response during executive functioning in people at high risk for psychosis (ie, with an at-risk mental state [ARMS]). DESIGN: Subjects were studied using functional magnetic resonance imaging while they performed a verbal fluency task, and proton magnetic resonance spectroscopy was used to measure their brain regional glutamate levels. SETTING: Maudsley Hospital, London, England. Patients and Other PARTICIPANTS: A total of 41 subjects: 24 subjects with an ARMS and 17 healthy volunteers (controls). MAIN OUTCOME MEASURES: Regional brain activation (blood oxygen level-dependent response); levels of glutamate in the anterior cingulate, left thalamus, and left hippocampus; and psychopathology ratings at the time of scanning. RESULTS: During the verbal fluency task, subjects with an ARMS showed greater activation than did controls in the middle frontal gyrus bilaterally. Thalamic glutamate levels were lower in the ARMS group than in control group. Within the ARMS group, thalamic glutamate levels were negatively associated with activation in the right dorsolateral prefrontal and left orbitofrontal cortex, but positively associated with activation in the right hippocampus and in the temporal cortex bilaterally. There was also a significant group difference in the relationship between cortical activation and thalamic glutamate levels, with the control group showing correlations in the opposite direction to those in the ARMS group in the prefrontal cortex and in the right hippocampus and superior temporal gyrus. CONCLUSIONS: Altered prefrontal, hippocampal, and temporal function in people with an ARMS is related to a reduction in thalamic glutamate levels, and this relationship is dif
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- 2011
19. Faulty Suppression of Irrelevant Material in Patients with Thought Disorder Linked to Attenuated Frontotemporal Activation
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Arcuri, S. M., primary, Broome, M. R., additional, Giampietro, V., additional, Amaro, E., additional, Kircher, T. T. J., additional, Williams, S. C. R., additional, Andrew, C. M., additional, Brammer, M., additional, Morris, R. G., additional, and McGuire, P. K., additional
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- 2012
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20. Prefrontal Function at Presentation Directly Related to Clinical Outcome in People at Ultrahigh Risk of Psychosis
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Fusar-Poli, P., primary, Broome, M. R., additional, Matthiasson, P., additional, Woolley, J. B., additional, Mechelli, A., additional, Johns, L. C., additional, Tabraham, P., additional, Bramon, E., additional, Valmaggia, L., additional, Williams, S. C., additional, and McGuire, P., additional
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- 2009
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21. ENVIRONMENTAL APPRAISAL OF TRUNK ROADS. DISCUSSION.
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VARLEY, W R, PICKERING, D, BRIDLE, R J, BROOME, M R, VULKAN, G H, GALLAGHER, W E, EASTMAN, C, LATCHFORD, J C R, DICK, A, HOLMES, R W, CHARNOCK, D B, BRANT, A N, WILLIAMS, T E H, SMITH, D W, CAMERON, R, and WOOD, J G M
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- 1982
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22. WEATHER FORECASTING AND THE CONTRACTOR.
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Broome, M. R.
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- 1966
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23. Differential activation of temporal cortex during sentence completion in schizophrenic patients with and without formal thought disorder
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Kircher, T. T., Bulimore, E. T., Brammer, M. J., Williams, S. C., Broome, M. R., Murray, R. M., and McGuire, P. K.
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- 2001
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24. ENVIRONMENTAL APPRAISAL OF TRUNK ROADS. DISCUSSION.
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BRIDLE, R J, primary, BROOME, M R, additional, HOLMES, R W, additional, VULKAN, G H, additional, CHARNOCK, D B, additional, WILLIAMS, T E H, additional, PICKERING, D, additional, GALLAGHER, W E, additional, BRANT, A N, additional, WOOD, J G M, additional, CAMERON, R, additional, EASTMAN, C, additional, VARLEY, W R, additional, DICK, A, additional, LATCHFORD, J C R, additional, and SMITH, D W, additional
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- 1982
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25. Activation of the NO-cGMP signalling pathway depresses hippocampal synaptic transmission through an adenosine receptor-dependent mechanism
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Broome, M. R., Collingridge, G. L., and Irving, A. J.
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- 1994
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26. The drawbacks of Information and Communication Technologies: Interplay and psychopathological risk of nomophobia and cyber-bullying, results from the bullying and youth mental health Naples study (BYMHNS)
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Matthew R. Broome, Gennaro Catone, Rosa Marotta, Vincenzo Paolo Senese, Pietro Muratori, Simone Pisano, Margherita Siciliano, Katia Russo, Antonio Pascotto, Catone, G., Senese, V. P., Pisano, S., Siciliano, M., Russo, K., Muratori, P., Marotta, R., Pascotto, A., and Broome, M. R.
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Internet ,Adolescent ,education ,05 social sciences ,Nomophobia ,Psychological intervention ,050301 education ,050801 communication & media studies ,Mental health ,Human-Computer Interaction ,0508 media and communications ,Arts and Humanities (miscellaneous) ,Information and Communications Technology ,Phone ,ICT ,Smartphone ,Cyber-bullying ,Risk assessment ,Psychology ,Association (psychology) ,0503 education ,General Psychology ,Psychopathology ,Clinical psychology - Abstract
Nomophobia and cyber-bullying are of particular interest for their intrinsic interplay. This study aims to describe the association between the two phenomena. The data presented in this study derived from a large school-based population survey that included 2959 students in 12 middle schools in the (place omissed for double blind peer review metropolitan city of Naples, Italy). The survey included several questions for nomophobia phenomena (smartphone addiction (SA), Check the smartphone (CS), Phantom phone signal (PPS), and for cyber-bullying (victimization and perpetration). SA was associated with cyber-perpetration; CS was associated with both cyber-victimization and cyber-perpetration. PPS was associated with both cyber-victimization and cyber-perpetration. Correlation analyses confirmed the association of nomophobia and cyber-bullying with emotional and behavioural difficulties. Nomophobia and Cyber-bullying were widespread phenomena among adolescent population. Data on their interplay showed that nomophobia was associated with an increase in cyber-perpetration behaviours. Both phenomena are associated with emotional problems, hyperactivity, conduct problems and total problems. Therefore these situations should be assessed and targeted carefully in their intrinsic relationship and potential impact on psychopathological risk. Information interventions are needed and psychotherapeutic treatments should consider these findings. Due to the cross-sectional nature of the study, the direction of the relationships remains uncertain and will require longitudinal and intervention studies to determine.
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- 2020
27. Thyroid Cysts in Cats: A Retrospective Study of 40 Cases.
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Miller ML, Peterson ME, Randolph JF, Broome MR, Norsworthy GD, and Rishniw M
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- Animals, Carcinoma epidemiology, Carcinoma veterinary, Cat Diseases blood, Cat Diseases diagnostic imaging, Cat Diseases pathology, Cats, Cystadenoma epidemiology, Cystadenoma veterinary, Cysts epidemiology, Cysts veterinary, Female, Iodine Radioisotopes, Magnetic Resonance Imaging veterinary, Male, New York epidemiology, Radionuclide Imaging veterinary, Retrospective Studies, Thyroid Neoplasms epidemiology, Thyroxine blood, Thyroxine metabolism, Tomography, X-Ray Computed veterinary, Cat Diseases epidemiology, Thyroid Neoplasms veterinary
- Abstract
Background: Thyroid cysts are rare in cats and poorly documented., Objectives: To report distinguishing clinical features and treatment responses of cats with thyroid cysts., Animals: Forty client-owned cats., Methods: Retrospective review of medical records for cats with thyroid cysts confirmed by scintigraphy, ultrasound, magnetic resonance imaging, or necropsy at 4 referral centers between 2005 and 2016. Signalment, clinical findings, diagnostic testing, treatment, and outcome were recorded., Results: Cats ranged in age from 8 to 20 years with no apparent breed or sex predilection. 37 of 40 (93%) cats were hyperthyroid (duration, 1-96 months). Clinical findings included palpable neck mass (40/40, 100%), weight loss (15/40, 38%), dysphagia (8/40, 20%), decreased appetite (5/40, 13%), and dyspnea (4/40, 10%). Cysts were classified as small (≤8 cm
3 ) in 16 (40%) and large (>8 cm3 ) in 24 (60%) cats. Of 25 cats treated with radioiodine, hyperthyroidism resolved in 23 (92%), whereas thyroid cysts resolved in 12 (50%). Radioiodine treatment resolved small cysts in 8 of 13 (62%) cats and large cysts in 4 of 11 (36%) cats. Eight cats, including 2 euthyroid cats, underwent thyroid-cystectomy; 3 with bilateral thyroid involvement were euthanized postoperatively for hypocalcemia. Excised cystic thyroid masses were identified as cystadenoma (4) and carcinoma (4)., Conclusions and Clinical Importance: Thyroid cysts are encountered in hyperthyroid and euthyroid cats with benign and malignant thyroid tumors. Radioiodine treatment alone inconsistently resolved thyroid cysts. Thyroid-cystectomy could be considered in cats with unilateral thyroid disease or when symptomatic cysts persist despite successful radioiodine treatment of hyperthyroidism., (Copyright © 2017 The Authors. Journal of Veterinary Internal Medicine published by Wiley Periodicals, Inc. on behalf of the American College of Veterinary Internal Medicine.)- Published
- 2017
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28. Misattributing speech and jumping to conclusions: a longitudinal study in people at high risk of psychosis.
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Winton-Brown TT, Broome MR, Allen P, Valli I, Howes O, Garety PA, Johns LC, and McGuire P
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- Adult, Female, Follow-Up Studies, Humans, Incidence, Longitudinal Studies, Male, Prospective Studies, Psychotic Disorders epidemiology, Risk, Severity of Illness Index, Young Adult, Cognition, Psychotic Disorders psychology, Speech, Task Performance and Analysis
- Abstract
Biases in cognition such as Jumping to Conclusions (JTC) and Verbal Self-Monitoring (VSM) are thought to underlie the formation of psychotic symptoms. This prospective study in people with an At Risk Mental State (ARMS) for psychosis examined how these cognitive biases changed over time, and predicted clinical and functional outcomes. Twenty-three participants were assessed at clinical presentation and a mean of 31 months later. Performance on a JTC and VSM tasks were measured at both time points. Relationships to symptom severity, level of function and the incidence of psychotic disorder were then examined. The levels of symptoms, function and VSM all improved over time, while JTC was stable. Five participants (22%) developed a psychotic disorder during the follow-up period, but the risk of transition was not related to performance on either task at baseline, or to longitudinal changes in task performance. JTC performance correlated with symptom severity at baseline and follow-up. Similarly, performance on the two tasks was not related to the level of functioning at follow-up. Thus, while the ARMS is associated with both VSM and JTC biases, neither predict the onset of psychosis or the overall functional outcome., (Copyright © 2014. Published by Elsevier Masson SAS.)
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- 2015
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29. Clinical features and treatment outcomes of 41 dogs with sublingual ectopic thyroid neoplasia.
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Broome MR, Peterson ME, and Walker JR
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- Animals, Combined Modality Therapy veterinary, Dog Diseases diagnosis, Dog Diseases therapy, Dogs, Female, Male, Mouth Floor, Survival Analysis, Thyroid Dysgenesis diagnosis, Thyroid Dysgenesis pathology, Thyroid Dysgenesis therapy, Thyroid Neoplasms diagnosis, Thyroid Neoplasms therapy, Thyroxine blood, Treatment Outcome, Dog Diseases pathology, Thyroid Dysgenesis veterinary, Thyroid Neoplasms veterinary
- Abstract
Background: Thyroid neoplasia is common in dogs, but there are few reports of dogs with ectopic, sublingual thyroid tumors., Objectives: To describe clinical features and outcomes of dogs with ectopic, sublingual thyroid neoplasia., Animals: Five hundred and forty-four dogs with thyroid neoplasia., Methods: This retrospective study reviewed the medical records of dogs referred for thyroid neoplasia between 1995 and 2013. Data extracted included signalment, extent of thyroid disease (eutopic or ectopic; metastasis), serum thyroxine (T4) concentration, treatment, and survival., Results: Of 544 dogs with thyroid neoplasia, 41 (7.5%) dogs had ectopic sublingual thyroid tumors. The clinical features of these 41 dogs were similar to the cohort group of 503 dogs with eutopic or ectopic mediastinal thyroid tumors, but dogs with sublingual tumors were younger and less likely to have metastatic disease (15% versus 30%, P < .05). Of the 41 dogs, 28 received treatment: 21 with surgery (which included partial hyoidectomy in 13), 7 with radioiodine alone, and 13 with surgery followed by administration of radioiodine. Overall median survival was 562 days (range, 1-1,850 days)., Conclusions and Clinical Importance: When compared with eutopic thyroid carcinomas, ectopic sublingual thyroid tumors generally have a less aggressive biologic behavior. Many dogs have prolonged survival, even without treatment, although death because of local tumor invasiveness or metastasis can develop in some dogs. Surgical thyroidectomy, including partial hyoidectomy, is generally effective for control of local disease. Administration of radioiodine, alone or in combination with surgical treatment, is recommended for multifocal disease or metastasis., (Copyright © 2014 by the American College of Veterinary Internal Medicine.)
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- 2014
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30. Delusional ideation, manic symptomatology and working memory in a cohort at clinical high-risk for psychosis: a longitudinal study.
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Broome MR, Day F, Valli I, Valmaggia L, Johns LC, Howes O, Garety P, and McGuire PK
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- Adult, Bipolar Disorder psychology, Delusions psychology, Female, Humans, Intelligence, Longitudinal Studies, Male, Neuropsychological Tests, Psychotic Disorders psychology, Risk, Uncertainty, Bipolar Disorder diagnosis, Delusions diagnosis, Memory, Short-Term, Psychotic Disorders diagnosis
- Abstract
We followed up a cohort (n=35) of clients with an "At Risk Mental State" (ARMS) for almost 2 years (mean 21.3 months). At baseline, these clients had taken part in research looking at the relationship between reasoning biases, memory, personality styles and delusional ideation. During the follow-up period, clients underwent a package of intervention from a specialist early detection team. Eighty percent (n=28) of these clients were successfully re-interviewed. There was improvement across the cohort as a whole, however five participants (17.9%) had made the transition to psychosis at follow-up. Those who had become psychotic had lower levels of manic symptomatology at baseline than those who did not enter the first episode. Further, across the cohort, impaired working memory and delusional ideation at baseline combined to predict 45% of the delusional ideation at follow-up. These preliminary findings suggest that working memory impairments may be linked to the persistence of delusional ideation and that manic symptoms in someone with an ARMS may suggest that such an individual is less likely to develop a frank psychotic episode., (Copyright © 2010 Elsevier Masson SAS. All rights reserved.)
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- 2012
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31. Altered brain function directly related to structural abnormalities in people at ultra high risk of psychosis: longitudinal VBM-fMRI study.
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Fusar-Poli P, Broome MR, Woolley JB, Johns LC, Tabraham P, Bramon E, Valmaggia L, Williams SC, and McGuire P
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- Adult, Cross-Sectional Studies, Female, Humans, Image Processing, Computer-Assisted methods, Longitudinal Studies, Male, Memory Disorders diagnosis, Memory Disorders etiology, Memory, Short-Term physiology, Neuropsychological Tests, Oxygen blood, Psychiatric Status Rating Scales, Psychotic Disorders complications, Young Adult, Brain blood supply, Brain pathology, Brain Mapping, Magnetic Resonance Imaging, Psychotic Disorders pathology
- Abstract
Background: Several studies have indicated that people with prodromal signs of psychosis show alterations in the structure and function of the brain when they first present to clinical services. However, the longitudinal course of these abnormalities, and how they relate to subsequent clinical and functional outcome is relatively unclear., Methods: A cohort of subjects at ultra high risk of psychosis were studied using functional magnetic resonance imaging (fMRI) in conjunction with the N-Back task, and volumetric MRI at first clinical presentation and again after one year. Levels of psychopathology and global functioning were assessed at the same time points using the CAARMS, PANSS, and the GAF scale., Results: At baseline, the high risk group showed reduced activation during the task in the left middle frontal gyrus, supramarginal gyrus and inferior parietal lobule, and reduced gray matter volume in the left middle and medial frontal gyri, left insula and the right anterior cingulate gyrus. Within the high-risk group, there was a positive correlation between the magnitude of the functional and structural alterations in the left middle frontal gyrus. Between presentation and follow up, the severity of perceptual disorder and thought disorder (rated by the CAARMS), and of general psychopathology (rated by the PANSS general score) decreased, and the level of global functioning improved. This clinical and functional improvement was associated with a longitudinal increase in activation in the anterior cingulate and right parahippocampal gyrus. The change in anterior cingulate response was directly correlated with the improvement in the GAF score., Conclusions: In subjects presenting with prodromal signs of psychosis, reduced prefrontal activation during a working memory task is associated with a reduction in gray matter volume in the same area. Changes in anterior cingulate activation were correlated with functional improvement in this group, consistent with the role of this region in multiple cognitive and social processes., (Copyright © 2010 Elsevier Ltd. All rights reserved.)
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- 2011
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32. Prefrontal function at presentation directly related to clinical outcome in people at ultrahigh risk of psychosis.
- Author
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Fusar-Poli P, Broome MR, Matthiasson P, Woolley JB, Mechelli A, Johns LC, Tabraham P, Bramon E, Valmaggia L, Williams SC, and McGuire P
- Subjects
- Adult, Cognition, Cohort Studies, Executive Function, Female, Follow-Up Studies, Humans, Magnetic Resonance Imaging, Male, Neuropsychological Tests, Psychotic Disorders psychology, Risk Factors, Treatment Outcome, Verbal Learning, Prefrontal Cortex physiopathology, Psychotic Disorders physiopathology
- Abstract
Background: The prodromal phase of psychosis is characterized by impaired executive function and altered prefrontal activation. The extent to which the severity of these deficits at presentation predicts subsequent clinical outcomes is unclear., Methods: We employed functional magnetic resonance imaging in a cohort of subjects at clinical risk for psychosis and in healthy controls. Images were acquired at clinical presentation and again after 1 year, using a 1.5-T Signa MRI scanner while subjects were performing a verbal fluency task. SPM5 was used for the analysis of imaging data. Psychopathological assessment of the "at-risk" symptoms was performed by using the Comprehensive Assessment for the At-Risk Mental State (CAARMS) and the Positive and Negative Symptom Scale (PANSS)., Results: In the at-risk mental state (ARMS) group, between presentation and follow-up, the CAARMS (perceptual disorder and thought disorder subscales) and the PANSS general scores decreased, while the Global Assessment of Functioning (GAF) score increased. Both the ARMS and control groups performed the verbal fluency task with a high degree of accuracy. The ARMS group showed greater activation in the left inferior frontal gyrus but less activation in the anterior cingulate gyrus than controls. Within the ARMS group, the longitudinal normalization of neurofunctional response in the left inferior frontal gyrus was positively correlated with the improvement in severity of hallucination-like experiences., Conclusions: The normalization of the abnormal prefrontal response during executive functioning is associated with 12-month psychopathological improvement of prodromal symptoms.
- Published
- 2011
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33. Spatial working memory in individuals at high risk for psychosis: longitudinal fMRI study.
- Author
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Fusar-Poli P, Broome MR, Matthiasson P, Woolley JB, Johns LC, Tabraham P, Bramon E, Valmaggia L, Williams SC, and McGuire P
- Subjects
- Adult, Analysis of Variance, Brain pathology, Brain Mapping, Cognition Disorders pathology, Female, Humans, Image Processing, Computer-Assisted methods, Longitudinal Studies, Male, Mental Status Schedule, Neuropsychological Tests, Oxygen blood, Psychotic Disorders pathology, Risk Factors, Young Adult, Brain blood supply, Cognition Disorders etiology, Magnetic Resonance Imaging methods, Memory, Short-Term physiology, Psychotic Disorders complications
- Abstract
Background: Neurocognitive impairments in executive and mnemonic domains are already evident in the pre-psychotic phases. The longitudinal dynamic course of the neurofunctional abnormalities underlying liability to psychosis and their relation to clinical outcomes is unknown., Methods: In this study we used functional magnetic resonance imaging (fMRI) in a cohort of subjects at ultra high clinical risk for psychosis (with an "At Risk Mental State", ARMS) and in healthy controls. Images were acquired at baseline and again after one year on a 1.5 Tesla Signa, while patients were performing a visuospatial working memory task. Psychopathological assessment of the prodromal symptoms was conducted at the same time points by using the CAARMS and the PANSS instruments., Results: There were no significant differences between the ARMS and control groups with respect to age or IQ. Although both groups performed the PAL task with a high degree of accuracy, the ARMS showed an increased latency in answers during the most demanding level of the task. At baseline, such cognitive impairment was associated with reduced activation in the left precuneus, left superior parietal lobule, right middle temporal gyrus in the ARMS as compared to controls. In addition, the ARMS failed to activate parietal areas with increasing difficulty of the task. Between presentation and follow-up the overall clinical status of the ARMS sample improved, despite 2 out of the 15 subjects having developed a full-blown psychosis: the CAARMS (perceptual disorder and thought disorder subscales) and the PANNS general scores decreased, while the GAF score increased. Such clinical amelioration was associated with a longitudinal compensatory increase in occipitoparietal regions., Conclusions: The prodromal phase of psychosis is associated with functional alterations in parietal and temporal networks subserving visuospatial working memory which are more evident under high cognitive loads. The clinical improvement at one year is associated with a compensatory increase in occipitoparietal regions., (Copyright © 2010 Elsevier B.V. All rights reserved.)
- Published
- 2010
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34. Effects of acute antipsychotic treatment on brain activation in first episode psychosis: an fMRI study.
- Author
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Fusar-Poli P, Broome MR, Matthiasson P, Williams SC, Brammer M, and McGuire PK
- Subjects
- Adult, Association Learning drug effects, Brain pathology, Brain Mapping, Cognition drug effects, Humans, Imagination drug effects, Imagination physiology, Magnetic Resonance Imaging, Memory drug effects, Memory physiology, Motor Activity drug effects, Movement drug effects, Movement physiology, Psychotic Disorders physiopathology, Reaction Time drug effects, Space Perception drug effects, Speech drug effects, Verbal Learning drug effects, Verbal Learning physiology, Antipsychotic Agents pharmacology, Association Learning physiology, Brain drug effects, Brain physiopathology, Psychotic Disorders drug therapy, Psychotic Disorders psychology
- Abstract
This study aimed to assess the neurophysiological effects of acute atypical antipsychotic treatment on cognitive functioning in subjects presenting with a first episode of psychosis. We used functional MRI to examine the modulatory effects of acute psychopharmacological intervention on brain activation during four different cognitive tasks: overt verbal fluency, random movement generation, n-back and a spatial object memory task. Treatment with atypical antipsychotics was associated with alterations in regional activation during each task and also when task demands were manipulated within paradigms. The initial treatment of psychosis with atypical antipsychotics thus appears to be associated with modifications of the neurofunctional correlates of executive and mnemonic functions. These effects need to be considered when interpreting group differences in activation between medicated patients and controls.
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- 2007
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35. Love and brain: from mereological fallacy to "folk" neuroimaging.
- Author
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Fusar-Poli P and Broome MR
- Subjects
- Humans, Brain metabolism, Love, Magnetic Resonance Imaging
- Published
- 2007
- Full Text
- View/download PDF
36. Effect of treatment of hyperthyroidism on renal function in cats.
- Author
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DiBartola SP, Broome MR, Stein BS, and Nixon M
- Subjects
- Animals, Antithyroid Agents therapeutic use, Blood Urea Nitrogen, Cat Diseases therapy, Cats, Creatinine blood, Hyperthyroidism physiopathology, Hyperthyroidism therapy, Iodine Radioisotopes therapeutic use, Methimazole therapeutic use, Prospective Studies, Specific Gravity, Thyroidectomy veterinary, Thyroxine blood, Urine chemistry, Cat Diseases physiopathology, Hyperthyroidism veterinary, Kidney physiopathology
- Abstract
Objective: To determine whether increases in BUN and serum creatinine (SCr) concentrations, which have been reported to develop after surgical bilateral thyroidectomy in hyperthyroid cats, also develop after treatment of hyperthyroidism with radioactive iodine and methimazole., Design: Prospective, clinical trial., Animals: 58 hyperthyroid cats., Procedure: Urine specific gravity, SCr, BUN, and serum thyroxine (T4) concentrations were determined before and 30 and 90 days after treatment of hyperthyroidism with radioactive iodine, methimazole, or surgical bilateral thyroidectomy., Results: Mean SCr and BUN concentrations determined 30 and 90 days after treatment were significantly higher than those measured before treatment. Mean SCr, BUN, and T4 concentrations were not different among groups before treatment or 30 and 90 days after treatment., Clinical Implications: Reduction of serum T4 concentrations after treatment of hyperthyroidism may result in azotemia in older cats with chronic renal disease. Treating azotemic hyperthyroid cats with methimazole until it can be determined whether correction of the hyperthyroid state will exacerbate the azotemia may be prudent.
- Published
- 1996
37. Acute toxicity to vehicle in commercial radiothyronines.
- Author
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Hays MT, Broome MR, and Turrel JM
- Subjects
- Animals, Brain Diseases chemically induced, Cats, Male, Acetonitriles adverse effects, Isotope Labeling methods, Pharmaceutical Vehicles adverse effects, Thyroxine, Triiodothyronine
- Published
- 1986
38. Peripheral metabolism of thyroid hormones and iodide in healthy and hyperthyroid cats.
- Author
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Broome MR, Hays MT, and Turrel JM
- Subjects
- Animals, Female, Hyperthyroidism metabolism, Male, Metabolic Clearance Rate, Cat Diseases metabolism, Cats metabolism, Hyperthyroidism veterinary, Iodides metabolism, Thyroxine metabolism, Triiodothyronine metabolism
- Abstract
The metabolic clearance rate, volume of distribution, and fractional clearance rate of thyroxine (T4), triiodothyronine (T3), and iodide were calculated for 6 healthy and 7 hyperthyroid cats, using single-compartmental and noncompartmental methods of analysis. The mean T4 volume of distribution of the hyperthyroid cats was 32.0% less than that of the healthy cats; it was the only variable that was significantly different (P less than 0.05) between these 2 groups of cats. The mean fractional clearance rate of T4 in the hyperthyroid cats was 53.2% greater than that in the healthy cats, but this difference was not significant. Hyperthyroid cats had no significant differences in T3 or iodide kinetic variables when compared with those in healthy cats. Single-compartmental analysis significantly overestimated T4 kinetic variables of healthy cats and T4, T3, and iodide kinetic variables of hyperthyroid cats when compared with the noncompartmental method of analysis.
- Published
- 1987
39. Assessing degree of hyperthyroidism in cats.
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Hays MT, Turrel JM, and Broome MR
- Subjects
- Animals, Cats, Hyperthyroidism diagnosis, Cat Diseases diagnosis, Hyperthyroidism veterinary, Thyroid Hormones blood
- Published
- 1988
40. Serial determination of thyroxine concentrations in hyperthyroid cats.
- Author
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Broome MR, Feldman EC, and Turrel JM
- Subjects
- Animals, Cat Diseases blood, Cats, Circadian Rhythm, Hyperthyroidism blood, Hyperthyroidism diagnosis, Cat Diseases diagnosis, Hyperthyroidism veterinary, Thyroxine blood
- Abstract
Serum thyroxine (T4) concentrations of 10 hyperthyroid cats were measured at hourly intervals between 9 AM and 4 PM. In 5 cats, blood samples were obtained by jugular venipuncture; the remaining 5 cats had blood samples obtained from jugular catheters. Over the 7-hour period, a significant temporal (diurnal) variation was not identified in the serum T4 concentrations of the cats (P greater than 0.01). The lowest mean serum T4 concentration (9.1 micrograms/dl) was measured at 3 PM and was 14.2% less than the highest mean serum T4 concentration (10.6 micrograms/dl) measured at 9 AM. Though there were fluctuations in serum T4 concentrations during the 7-hour period, the differences were not systematic. The maximal variation in serum T4 concentrations over the 7-hour period averaged less than 21%. Despite the random variations during the 7-hour period, none of the measured serum T4 concentrations was in the normal range. Measurement of serum T4 concentration from randomly obtained blood samples was determined to be reliable for diagnosing feline hyperthyroidism.
- Published
- 1988
41. A multicompartmental model for iodide, thyroxine, and triiodothyronine metabolism in normal and spontaneously hyperthyroid cats.
- Author
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Hays MT, Broome MR, and Turrel JM
- Subjects
- Animals, Cats, Feces analysis, Iodides blood, Iodides urine, Iodine Radioisotopes, Kinetics, Mathematics, Metabolic Clearance Rate, Models, Biological, Statistics as Topic, Thyroid Gland metabolism, Thyroxine blood, Thyroxine urine, Triiodothyronine blood, Triiodothyronine urine, Hyperthyroidism metabolism, Iodides metabolism, Thyroxine metabolism, Triiodothyronine metabolism
- Abstract
A comprehensive multicompartmental kinetic model was developed to account for the distribution and metabolism of simultaneously injected radioactive iodide (iodide*), T3 (T3*), and T4 (T4*) in six normal and seven spontaneously hyperthyroid cats. Data from plasma samples (analyzed by HPLC), urine, feces, and thyroid accumulation were incorporated into the model. The submodels for iodide*, T3*, and T4* all included both a fast and a slow exchange compartment connecting with the plasma compartment. The best-fit iodide* model also included a delay compartment, presumed to be pooling of gastrosalivary secretions. This delay was 62% longer in the hyperthyroid cats than in the euthyroid cats. Unexpectedly, all of the exchange parameters for both T4 and T3 were significantly slowed in hyperthyroidism, possibly because the hyperthyroid cats were older. None of the plasma equivalent volumes of the exchange compartments of iodide*, T3*, or T4* was significantly different in the hyperthyroid cats, although the plasma equivalent volume of the fast T4 exchange compartments were reduced. Secretion of recycled T4* from the thyroid into the plasma T4* compartment was essential to model fit, but its quantity could not be uniquely identified in the absence of multiple thyroid data points. Thyroid secretion of T3* was not detectable. Comparing the fast and slow compartments, there was a shift of T4* deiodination into the fast exchange compartment in hyperthyroidism. Total body mean residence times (MRTs) of iodide* and T3* were not affected by hyperthyroidism, but mean T4* MRT was decreased 23%. Total fractional T4 to T3 conversion was unchanged in hyperthyroidism, although the amount of T3 produced by this route was increased nearly 5-fold because of higher concentrations of donor stable T4. Analysis of the data indicates that the increased overall T4* turnover (decreased MRT) in hyperthyroidism is due to increased losses through pathways other than T3 formation. Conjugation, with subsequent deiodination, is proposed as one possibly important pathway. Results of this multicompartmental analysis are compared with those of noncompartmental analysis of the same data and with results of similar model analyses in other species.
- Published
- 1988
- Full Text
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42. Predictive value of tracer studies for 131I treatment in hyperthyroid cats.
- Author
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Broome MR, Turrel JM, and Hays MT
- Subjects
- Animals, Cats, Computers, Female, Half-Life, Hyperthyroidism radiotherapy, Iodine Radioisotopes administration & dosage, Iodine Radioisotopes metabolism, Kinetics, Male, Predictive Value of Tests, Retrospective Studies, Cat Diseases radiotherapy, Hyperthyroidism veterinary, Iodine Radioisotopes therapeutic use, Thyroid Gland metabolism
- Abstract
In 76 cats with hyperthyroidism, peak thyroidal radioiodine (131I) uptakes and effective half-lives were determined after administration of tracer and therapeutic activities of 131I. In 6 additional hyperthyroid cats, only peak thyroidal uptakes after administration of tracer and therapeutic activities of 131I were determined. Good correlation was found between peak thyroidal uptakes of tracer and therapeutic 131I; however, only fair correlation was observed between effective half-lives. In 79% of the cats, the effective half-life for therapeutic 131I was longer than that for tracer 131I. After administration of therapeutic activity of 131I, monoexponential and biphasic decay curves were observed in 51 and 16 cats, respectively. Using therapeutic kinetic data, radiation doses to the thyroid gland were calculated retrospectively on the basis of 2 methods for determining the activity of 131I administered: (1) actual administration of tracer-compensated activity and (2) hypothetic administration of uniform activity (3 mCi). Because of the good predictive ability of tracer kinetic data for the therapeutic kinetic data, the tracer-compensated radiation doses came significantly (P = 0.008) closer to the therapeutic goal than did the uniform-activity doses. In addition, the use of tracer kinetic information reduced the extent of the tendency for consistently high uniform-activity doses. A manual method for acquiring tracer kinetic data was developed and was an acceptable alternative to computerized techniques. Adoption of this method gives individuals and institutions with limited finances the opportunity to characterize the iodine kinetics in cats before proceeding with administration of therapeutic activities of 131I.
- Published
- 1988
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