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1.
Genet Med ; 25(12): 100969, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37634128

RESUMO

PURPOSE: PIK3CA-related overgrowth spectrum (PROS) encompasses several rare conditions resulting from activating variants in PIK3CA. Alpelisib, a PI3Kα-selective inhibitor, targets the underlying etiology of PROS, offering a novel therapeutic approach to current management strategies. This study evaluated the safety and efficacy of alpelisib in pediatric and adult patients with PROS. METHODS: EPIK-P1 (NCT04285723) was a non-interventional, retrospective chart review of 57 patients with PROS (≥2 years) treated with alpelisib through compassionate use. Patients had severe/life-threatening PROS-related conditions and confirmed PIK3CA pathogenic variant. The primary end point assessed patient response to treatment at Week 24 (6 months). RESULTS: Twenty-four weeks (6 months) after treatment initiation, 12 of 32 (37.5%) patients with complete case records included in the analysis of the primary end point experienced a ≥20% reduction in target lesion(s) volume. Additional clinical benefit independent from lesion volume reduction was observed across the full study population. Adverse events (AEs) and treatment-related AEs were experienced by 82.5% (47/57) and 38.6% (22/57) of patients, respectively; the most common treatment-related AEs were hyperglycemia (12.3%) and aphthous ulcer (10.5%). No deaths occurred. CONCLUSION: EPIK-P1 provides real-world evidence of alpelisib effectiveness and safety in patients with PROS and confirms PI3Kα as a valid therapeutic target for PROS symptom management.


Assuntos
Tiazóis , Adulto , Humanos , Criança , Estudos Retrospectivos , Mutação , Tiazóis/efeitos adversos , Classe I de Fosfatidilinositol 3-Quinases/genética
2.
J Biopharm Stat ; 33(6): 812-819, 2023 11 02.
Artigo em Inglês | MEDLINE | ID: mdl-36710386

RESUMO

Rare disorders impact millions of children worldwide, and developing new medicines in this setting is associated with multiple challenges. In this paper, we share a successful story of how real-world data (RWD) were leveraged to accelerate evidence generation and patient access to a life-changing therapy in patients with severe manifestations of PIK3CA-related overgrowth spectrum who require systemic therapy. Despite all the existing regulatory guidelines considering real-world evidence (RWE), there is limited regulatory precedent of the use of this framework in support of a new indication. Thus, our case study illustrates design innovations based on the use of a compassionate use program, primarily in children, as a RWD source for approval of a new therapy in a rare disorder. We highlight the systematic considerations and mitigation of potential sources of bias in order to transform the data into actionable evidence. Our experience shows that RWE can be successfully used with appropriate study planning and mitigation in the context of a rare disorder with a high unmet medical need. Some lessons learned from this case study can benefit therapeutic development in rare disorders.


Assuntos
Doenças Raras , Projetos de Pesquisa , Criança , Humanos , Doenças Raras/tratamento farmacológico
3.
Rheumatology (Oxford) ; 61(SI2): SI151-SI156, 2022 06 28.
Artigo em Inglês | MEDLINE | ID: mdl-35258593

RESUMO

OBJECTIVES: Although evidence is accumulating globally, data on outcomes in rheumatic disease and COVID-19 in Ireland are limited. We used data from the COVID-19 Global Rheumatology Alliance (C19-GRA) to describe time-varying COVID-19 outcomes for people with rheumatic disease in Ireland. METHODS: Data entered into the C19-GRA provider registry from Ireland between 24 March 2020 and 9 July 2021 were analysed. Differences in the likelihood of hospitalization and mortality according to demographic and clinical variables were investigated using Chi-squared test or Fisher's exact test, as appropriate. Trends in odds of hospitalization and mortality over time were investigated using logistic regression with the time period as a categorical variable. RESULTS: Of 212 cases included, 59.4% were female and median age was 58.0 years (range 13-96). Of the 212 cases, 92 (43%) were hospitalized and 22 (10.4%) died. Increasing age, a diagnosis of gout, ever smoking, glucocorticoid use, having comorbidities and specific comorbidities of cancer, cardiovascular and pulmonary disease were more common in those hospitalized. A diagnosis of inflammatory arthritis, csDMARD and/or b/tsDMARD use were less frequent in those hospitalized. Increasing age, a diagnosis of gout, ever smoking, having comorbidities and specific comorbidities of obesity, cardiovascular and pulmonary disease were more common in those who died. Odds of hospitalization or mortality did not change over time. CONCLUSION: No temporal trend was observed in either COVID-19-related hospitalization or mortality outcomes for people with rheumatic disease in Ireland.


Assuntos
COVID-19 , Gota , Doenças Reumáticas , Reumatologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , COVID-19/epidemiologia , Feminino , Humanos , Irlanda/epidemiologia , Masculino , Pessoa de Meia-Idade , Sistema de Registros , Doenças Reumáticas/epidemiologia , SARS-CoV-2 , Adulto Jovem
4.
Pituitary ; 25(6): 959-970, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36219274

RESUMO

BACKGROUND: Many patients with Cushing's disease (CD) require long-term medical therapy to control their hypercortisolism. In the core phase of a Phase II study (LINC 2; NCT01331239), osilodrostat normalized mean urinary free cortisol (mUFC) in 78.9% of patients with CD. Here, we report long-term efficacy and safety data for osilodrostat following completion of an optional extension to LINC 2. METHODS: Adult patients with CD were enrolled in a 22-week prospective Phase II study. Patients with mUFC ≤ upper limit of normal (ULN) or receiving clinical benefit at week 22 could enter the optional extension. The proportion of complete (mUFC ≤ ULN) or partial (mUFC > ULN but ≥ 50% decrease from baseline) mUFC responders was assessed over time. RESULTS: Sixteen of 19 enrolled patients entered the extension. Median (range) osilodrostat exposure from baseline to study end was 5.4 years (0.04-6.7); median (range) average dose was 10.6 mg/day (1.1-47.9). Overall response rate (complete and partial mUFC responders) was consistently ≥ 50%. Sustained control of most cardiovascular-related parameters was observed during the extension. The long-term safety profile was consistent with that reported during the core phase. Testosterone levels (females) decreased towards baseline levels during long-term follow-up, with no new or worsening cases of hirsutism during the extension. CONCLUSIONS: In the longest prospective study of a steroidogenesis inhibitor to date, osilodrostat provided sustained reductions in mUFC for up to 6.7 years of treatment, with no new safety signals emerging during the extension. These findings support osilodrostat as an effective long-term treatment for patients with CD.


Assuntos
Hipersecreção Hipofisária de ACTH , Humanos , Adulto , Feminino , Hipersecreção Hipofisária de ACTH/tratamento farmacológico , Estudos Prospectivos , Resultado do Tratamento , Imidazóis/uso terapêutico , Hidrocortisona/uso terapêutico
5.
FASEB J ; 33(5): 6667-6681, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30779601

RESUMO

Cell differentiation is directed by extracellular cues and intrinsic epigenetic modifications, which control chromatin organization and transcriptional activation. Central to this process is PRC2, which modulates the di- and trimethylation of lysine 27 on histone 3; however, little is known concerning the direction of PRC2 to specific loci. Here, we have investigated the physical interactome of EZH2, the enzymatic core of PRC2, during retinoic acid-mediated differentiation of neuroepithelial, pluripotent NT2 cells and the dedifferentiation of neuroretinal epithelial ARPE19 cells in response to TGF-ß. We identified Smad3 as an EZH2 interactor in both contexts. Co-occupation of the CDH1 promoter by Smad3 and EZH2 and the cooperative, functional nature of the interaction were established. We propose that the interaction between Smad3 and EZH2 targets the core polycomb assembly to defined regions of the genome to regulate transcriptional repression and forms a molecular switch that controls promoter access through epigenetic mechanisms leading to gene silencing.-Andrews, D., Oliviero, G., De Chiara, L., Watson, A., Rochford, E., Wynne, K., Kennedy, C., Clerkin, S., Doyle, B., Godson, C., Connell, P., O'Brien, C., Cagney, G., Crean, J. Unravelling the transcriptional responses of TGF-ß: Smad3 and EZH2 constitute a regulatory switch that controls neuroretinal epithelial cell fate specification.


Assuntos
Diferenciação Celular , Proteína Potenciadora do Homólogo 2 de Zeste/biossíntese , Células Epiteliais/metabolismo , Inativação Gênica , Epitélio Pigmentado da Retina/metabolismo , Proteína Smad3/biossíntese , Transcrição Gênica , Fator de Crescimento Transformador beta/biossíntese , Linhagem Celular , Proteína Potenciadora do Homólogo 2 de Zeste/genética , Humanos , Proteína Smad3/genética , Fator de Crescimento Transformador beta/genética , Tretinoína/farmacologia
6.
BMC Psychiatry ; 20(1): 515, 2020 10 23.
Artigo em Inglês | MEDLINE | ID: mdl-33097036

RESUMO

BACKGROUND: Prevention of violence due to severe mental disorders in psychiatric hospitals may require intrusive, restrictive and coercive therapeutic practices. Research concerning appropriate use of such interventions is limited by lack of a system for description and measurement. We set out to devise and validate a tool for clinicians and secure hospitals to assess necessity and proportionality between imminent violence and restrictive practices including de-escalation, seclusion, restraint, forced medication and others. METHODS: In this retrospective observational cohort study, 28 patients on a 12 bed male admissions unit in a secure psychiatric hospital were assessed daily for six months. Data on adverse incidents were collected from case notes, incident registers and legal registers. Using the functional assessment sequence of antecedents, behaviours and consequences (A, B, C) we devised and applied a multivariate framework of structured professional assessment tools, common adverse incidents and preventive clinical interventions to develop a tool to analyse clinical practice. We validated by testing assumptions regarding the use of restrictive and intrusive practices in the prevention of violence in hospital. We aimed to provide a system for measuring contextual and individual factors contributing to adverse events and to assess whether the measured seriousness of threating and violent behaviours is proportionate to the degree of restrictive interventions used. General Estimating Equations tested preliminary models of contexts, decisions and pathways to interventions. RESULTS: A system for measuring adverse behaviours and restrictive, intrusive interventions for prevention had good internal consistency. Interventions were proportionate to seriousness of harmful behaviours. A 'Pareto' group of patients (5/28) were responsible for the majority (80%) of adverse events, outcomes and interventions. The seriousness of the precipitating events correlated with the degree of restrictions utilised to safely manage or treat such behaviours. CONCLUSION: Observational scales can be used for restrictive, intrusive or coercive practices in psychiatry even though these involve interrelated complex sequences of interactions. The DRILL tool has been validated to assess the necessity and demonstrate proportionality of restrictive practices. This tool will be of benefit to services when reviewing practices internally, for mandatory external reviewing bodies and for future clinical research paradigms.


Assuntos
Transtornos Mentais , Saúde Mental , Liberdade , Hospitais Psiquiátricos , Humanos , Masculino , Restrição Física , Estudos Retrospectivos
7.
Retina ; 40(3): 546-551, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30576303

RESUMO

PURPOSE: To determine the results of pars plana vitrectomy for giant retinal tear detachments using transscleral diode laser retinopexy and short-term postoperative tamponade with perfluoro-n-octane (PFnO). METHODS: Twenty consecutive patients with fresh giant retinal tears were enrolled in a single-arm prospective study. One case was withdrawn for technical reasons. The remainder all underwent pars plana vitrectomy, PFnO injection, transscleral diode laser retinopexy to the edge of the giant retinal tear, and short-term postoperative heavy liquid tamponade. None of the cases had scleral buckling or lensectomy. RESULTS: Nineteen cases (18 male and 1 female) with a mean age of 41 years (range 10-69 years) were followed up for a period of 6 months. Postoperative tamponade with PFnO was maintained for a mean of 7.6 days (range 4-21 days), after which it was exchanged for sulfur hexafluoride (SF6), perfluoropropane (C3F8) gas, or balanced salt solution. Final reattachment rate was 100%, with 3 (15.7%) patients requiring additional surgery. Best-corrected visual acuity at final follow-up was 20/40 or better in 11 eyes (58%), between 20/60 and 20/200 in 7 (37%), and 20/400 in 1 (5%). CONCLUSION: In this series of acute giant retinal tears, transscleral diode laser retinopexy together with the use of PFnO for short-term postoperative tamponade achieved excellent anatomical and visual results.


Assuntos
Tamponamento Interno/métodos , Fluorocarbonos/administração & dosagem , Terapia a Laser/métodos , Lasers Semicondutores/uso terapêutico , Retina/cirurgia , Perfurações Retinianas/cirurgia , Vitrectomia/métodos , Adolescente , Adulto , Idoso , Criança , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Período Pós-Operatório , Estudos Prospectivos , Retina/patologia , Perfurações Retinianas/diagnóstico , Esclera/cirurgia , Resultado do Tratamento , Acuidade Visual , Adulto Jovem
8.
Retina ; 40(2): 290-298, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31972799

RESUMO

PURPOSE: To report the outcomes of eyes receiving surgical management for traumatic macular holes. To describe the preoperative and postoperative optical coherence tomography features of traumatic macular holes and to explore associations between preoperative clinical and optical coherence tomography features, and visual outcome. METHODS: Retrospective study of patients undergoing vitrectomy for traumatic macular hole and entered into the Australian and New Zealand Society of Retinal Specialists surgical registry. Preoperative clinical data, surgical details, and 3-month postoperative outcomes were recorded prospectively. Longer-term outcomes at 12 months were requested retrospectively, as were preoperative and postoperative optical coherence tomography scans. RESULTS: Hole closure was achieved in 91% (21/23) of patients with a single procedure. The average preoperative visual acuity was 20/120. At 3 months postoperatively, the mean visual acuity had improved to 20/70 (P < 0.001), 11/23 (48%) of eyes improved ≥15 letters, and the number of eyes with 20/40 acuity or better increased from 1/23 to 7/23. Eyes with worse visual outcomes (visual acuity < 20/80) had larger holes, worse preoperative acuity, and a greater extent of preoperative ellipsoid band attenuation than those with better postoperative visual acuity. CONCLUSION: Eyes receiving surgical management for traumatic macular hole achieved good anatomical results and approximately half had a substantial improvement in acuity. Ellipsoid band attenuation on preoperative optical coherence tomography and worse preoperative acuity were associated with poorer visual outcomes.


Assuntos
Traumatismos Oculares/complicações , Macula Lutea/patologia , Perfurações Retinianas/cirurgia , Tomografia de Coerência Óptica/métodos , Vitrectomia/métodos , Adolescente , Adulto , Idoso , Traumatismos Oculares/diagnóstico , Traumatismos Oculares/cirurgia , Feminino , Humanos , Macula Lutea/cirurgia , Masculino , Pessoa de Meia-Idade , Período Pós-Operatório , Perfurações Retinianas/diagnóstico , Perfurações Retinianas/etiologia , Estudos Retrospectivos , Resultado do Tratamento , Adulto Jovem
9.
BMC Psychiatry ; 19(1): 408, 2019 12 19.
Artigo em Inglês | MEDLINE | ID: mdl-31856762

RESUMO

BACKGROUND: People with schizophrenia are ten times more likely to commit homicide than a member of the general population. The relationship between symptoms of schizophrenia and acts of violence is unclear. There has also been limited research on what determines the seriousness and form of violence, such as reactive or instrumental violence. Moral cognition may play a paradoxical role in acts of violence for people with schizophrenia. Thoughts which have moral content arising from psychotic symptoms may be a cause of serious violence. METHOD: We investigated if psychotic symptoms and moral cognitions at the time of a violent act were associated with acts of violence using a cross-sectional national forensic cohort (n = 55). We examined whether moral cognitions were associated with violence when controlling for neurocognition and violence proneness. We explored the association between all psychotic symptoms present at the time of the violent act, psychotic symptoms judged relevant to the violent act and moral cognitions present at that time. Using mediation analysis, we examined whether moral cognitions were the missing link between symptoms and the relevance of symptoms for violence. We also investigated if specific moral cognitions mediated the relationship between specific psychotic symptoms, the seriousness of violence (including homicide), and the form of violence. RESULTS: Psychotic symptoms generally were not associated with the seriousness or form of violence. However, specific moral cognitions were associated with the seriousness and form of violence even when controlling for neurocognition and violence proneness. Specific moral cognitions were associated with specific psychotic symptoms present and relevant to violence. Moral cognitions mediated the relationship between the presence of specific psychotic symptoms and their relevance for violence, homicide, seriousness of violence, and the form of violence. CONCLUSIONS: Moral cognitions including the need to reduce suffering, responding to an act of injustice or betrayal, the desire to comply with authority, or the wish to punish impure or disgusting behaviour, may be a key mediator explaining the relationship between psychotic symptoms and acts of violence. Our findings may have important implications for risk assessment, treatment and violence prevention.


Assuntos
Cognição , Princípios Morais , Transtornos Psicóticos/psicologia , Violência/psicologia , Adulto , Estudos de Coortes , Estudos Transversais , Feminino , Homicídio/psicologia , Humanos , Masculino , Pessoa de Meia-Idade
10.
BMC Psychiatry ; 19(1): 27, 2019 01 15.
Artigo em Inglês | MEDLINE | ID: mdl-30646884

RESUMO

BACKGROUND: Evidence is accumulating that Cognitive Remediation Training (CRT) is effective for ameliorating cognitive deficits experienced by patients with schizophrenia and accompanying functional impairment. There has been no randomized controlled trial of CRT using a nationally representative population of forensic patients, despite the significant cognitive deficits frequently present within this group. METHODS: Sixty-five patients with schizophrenia or schizoaffective disorder were enrolled in a single blind randomized controlled trial of CRT versus treatment as usual (TAU); representing 94% of those eligible within a national forensic cohort. The primary outcome measure was the composite score of the MATRICS Consensus Cognitive Battery (MCCB). Secondary outcome measures included neurocognitive and social cognitive domains, symptoms, and 'real world' functioning. Patient satisfaction was examined using an exit interview. Participants were reassessed at 8 months follow up. All data were analyzed using an intention to treat design (ITT). RESULTS: For the primary outcome measure, the MCCB composite score, there were significant differences between those who participated in CRT and those receiving TAU at both end of treatment and 8 months follow up (Cohen's d = 0.34. Significant improvements were observed in visual and working memory. Mediation analysis found that those who cognitively benefited from CRT had corresponding improved functioning, and more net positive therapeutic moves i.e. moves to units with lower security within the hospital. Ninety-six percent believed their cognitive gains positively affected their daily lives. CONCLUSIONS: CRT may be an acceptable and efficacious intervention for forensic patients with schizophrenia or schizoaffective disorder. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT02360813 . Trial registered Feb 4th 2015, last updated May 1st 2015.


Assuntos
Remediação Cognitiva/métodos , Psiquiatria Legal/métodos , Transtornos Psicóticos/psicologia , Transtornos Psicóticos/terapia , Esquizofrenia/terapia , Psicologia do Esquizofrênico , Adulto , Estudos de Coortes , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Satisfação do Paciente , Método Simples-Cego , Resultado do Tratamento , Adulto Jovem
11.
Appetite ; 136: 154-159, 2019 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-30721743

RESUMO

People often seek variety in food choices because they believe variety offers them many benefits such as giving them a chance to explore new foods while decreasing the likelihood of boredom from eating the same food repeatedly. While much research has explored situational factors that increase variety seeking behavior, we explore a situational factor that decreases variety seeking. Specifically, this research investigates how perceived relational threat affects variety seeking in snack choices. Across three studies, we experimentally manipulate relational self-threat and find that those who experience high (vs. low) threat seek less variety (Study 1), even when the same choice set is construed as having more (vs. less) variety (Study 2). This effect is attenuated when people have the chance to engage in self-affirmation (Study 3).


Assuntos
Comportamento de Escolha , Preferências Alimentares/psicologia , Autoimagem , Lanches/psicologia , Humanos
12.
Biochim Biophys Acta Mol Cell Biol Lipids ; 1863(7): 750-761, 2018 07.
Artigo em Inglês | MEDLINE | ID: mdl-29660533

RESUMO

The human retina is a complex structure of organised layers of specialised cells that support the transmission of light signals to the visual cortex. The outermost layer of the retina, the retinal pigment epithelium (RPE), forms part of the blood retina barrier and is implicated in many retinal diseases. Lysophosphatidic acid (LPA) is a bioactive lipid exerting pleiotropic effects in various cell types, during development, normal physiology and disease. Its producing enzyme, AUTOTAXIN (ATX), is highly expressed by the pigmented epithelia of the human eye, including the RPE. Using human pluripotent stem cell (hPSC)-derived retinal cells, we interrogated the role of LPA in the human RPE and photoreceptors. hPSC-derived RPE cells express and synthesize functional ATX, which is predominantly secreted apically of the RPE, suggesting it acts in a paracrine manner to regulate photoreceptor function. In RPE cells, LPA regulates tight junctions, in a receptor-dependent mechanism, with an increase in OCCLUDIN and ZONULA OCCLUDENS (ZO)-1 expression at the cell membrane, accompanied by an increase in the transepithelial resistance of the epithelium. High concentration of LPA decreases phagocytosis of photoreceptor outer segments by the RPE. In hPSC-derived photoreceptors, LPA induces morphological rearrangements by modulating the actin myosin cytoskeleton, as evidenced by Myosin Light Chain l membrane relocation. Collectively, our data suggests an important role of LPA in the integrity and functionality of the healthy retina and blood retina barrier.


Assuntos
Barreira Hematorretiniana/fisiologia , Lisofosfolipídeos/fisiologia , Células Fotorreceptoras de Vertebrados/fisiologia , Doenças Retinianas/patologia , Epitélio Pigmentado da Retina/metabolismo , Linhagem Celular , Citoesqueleto/metabolismo , Humanos , Fagocitose/fisiologia , Diester Fosfórico Hidrolases/metabolismo , Células-Tronco Pluripotentes , Doenças Retinianas/cirurgia , Epitélio Pigmentado da Retina/citologia , Epitélio Pigmentado da Retina/patologia , Junções Íntimas/metabolismo , Vitrectomia
13.
BMC Psychiatry ; 18(1): 289, 2018 09 08.
Artigo em Inglês | MEDLINE | ID: mdl-30195335

RESUMO

BACKGROUND: We evaluated change in response to multi-modal psychosocial 'treatment as usual' programs offered within a forensic hospital. METHODS: Sixty nine patients with a diagnosis of schizophrenia or schizoaffective disorder were followed for up to four years. Patient progress was evaluated using the DUNDRUM-3, a measure of patient ability to participate and benefit from multi-modal psychosocial programs and the HCR-20 dynamic items, a measure of violence proneness. We report reliable change index (RCI) and reliable and clinically meaningful change (RMC). We assessed patients' cognition using the MCCB, psychopathology using the PANSS. The effect of cognition and psychopathology on change in DUNDRUM-3 was examined using hierarchical multiple regression with age, gender, and baseline DUNDRUM-3 scores. RESULTS: The DUNDRUM-3 changed significantly (p < 0.004, d = 0.367, RCI 32% of 69 cases, RMC 23%) and HCR-20-C (p < 0.003, d = 0.377, RCI 10%). Both cognition and psychopathology accounted for significant variance in DUNDRUM-3 at follow up. Those hospitalized for less than five years at baseline changed more than longer stay patients. Mediation analysis demonstrated that the relationship between cognition and change in violence proneness (HCR-20-C) was both directly affected and indirectly mediated by change in DUNDRUM-3. CONCLUSIONS: Change in response to multi-modal psychosocial programs (DUNDRUM-3) reduced a measure of violence proneness over four years. Forensic in-patients' ability to benefit from psychosocial treatment appears to be a function of the outcome measure used, unit of measurement employed, degree of cognitive impairment, psychopathology, and length of stay. Lower risk of re-offending may be partially attributable to participation and engagement in psychosocial interventions.


Assuntos
Criminosos/psicologia , Psiquiatria Legal/métodos , Transtornos Psicóticos/terapia , Esquizofrenia/terapia , Psicologia do Esquizofrênico , Adulto , Cognição , Terapia Combinada , Feminino , Hospitais Psiquiátricos , Humanos , Pacientes Internados/psicologia , Masculino , Participação do Paciente , Estudos Prospectivos , Psicopatologia , Transtornos Psicóticos/psicologia , Fatores de Tempo , Violência/psicologia
14.
Appetite ; 127: 296-302, 2018 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-29787828

RESUMO

Despite convenience and nutrition advantages of frozen vegetables, consumption of them is low compared with fresh vegetables and continues to decrease. In two studies, we observe a negative bias for frozen vegetables compared with fresh vegetables. In study 1, we used an Implicit Association Test (IAT) to demonstrate that generalized negative associations with frozen vegetables are automatic, robust, and ingrained in long-term memory. In study 2, we conceptually replicate this finding with an explicit measure and extend it by examining the role of transforming the food product in formation of the observed negative bias. We find no improvement in evaluation for frozen spinach when participants contemplate the final cooked product. Instead, we see less favorable evaluations of fresh spinach when participants contemplate the final cooked product. These findings are consistent with previous research that demonstrates that transformation of a food from its "natural" state leads to less favorable evaluations of it.


Assuntos
Comportamento do Consumidor , Conservação de Alimentos/métodos , Alimentos Congelados , Verduras , Adulto , Etnicidade , Comportamento Alimentar/psicologia , Feminino , Manipulação de Alimentos/métodos , Humanos , Masculino , Estudantes , Universidades , Adulto Jovem
15.
J Autoimmun ; 79: 105-111, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-28318807

RESUMO

Systemic lupus erythematosus (SLE) is a complex disease targeting multiple organs as a result of overactivation of the type I interferon (IFN) system, a feature currently being targeted by multiple biologic therapies against IFN-α. We have identified an estrogen-regulated microRNA, miR-302d, whose expression is decreased in SLE patient monocytes and identify its target as interferon regulatory factor (IRF)-9, a critical component of the transcriptional complex that regulates expression of interferon-stimulated genes (ISGs). In keeping with the reduced expression of miR-302d in SLE patient monocytes, IRF9 levels were increased, as was expression of a number of ISGs including MX1 and OAS1. In vivo evaluation revealed that miR-302d protects against pristane-induced inflammation in mice by targeting IRF9 and hence ISG expression. Importantly, patients with enhanced disease activity have markedly reduced expression of miR-302d and enhanced IRF9 and ISG expression, with miR-302d negatively correlating with IFN score. Together these findings identify miR-302d as a key regulator of type I IFN driven gene expression via its ability to target IRF9 and regulate ISG expression, underscoring the importance of non-coding RNA in regulating the IFN pathway in SLE.


Assuntos
Regulação da Expressão Gênica , Fator Gênico 3 Estimulado por Interferon, Subunidade gama/genética , Lúpus Eritematoso Sistêmico/genética , MicroRNAs/genética , Interferência de RNA , Animais , Análise por Conglomerados , Modelos Animais de Doenças , Estrogênios/farmacologia , Perfilação da Expressão Gênica , Regulação da Expressão Gênica/efeitos dos fármacos , Humanos , Interferon Tipo I/metabolismo , Lúpus Eritematoso Sistêmico/imunologia , Lúpus Eritematoso Sistêmico/metabolismo , Camundongos , Monócitos/efeitos dos fármacos , Monócitos/imunologia , Monócitos/metabolismo , Transdução de Sinais/efeitos dos fármacos
16.
Orbit ; 36(3): 135-136, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28594301

RESUMO

Orbital cellulitis is a serious sight threatening and potentially life threatening condition which can be complicated by orbital abscess formation. Posterior subtenon (PST) injection of corticosteroid is commonly used in the treatment of posterior segment inflammation including post-operative macular oedema. We report a case of orbital abscess formation as a late complication of PST triamcinolone acetonide and discuss the presentation, diagnosis and management.


Assuntos
Abscesso/etiologia , Glucocorticoides/administração & dosagem , Injeções Intraoculares/efeitos adversos , Celulite Orbitária/etiologia , Cápsula de Tenon/efeitos dos fármacos , Triancinolona Acetonida/administração & dosagem , Abscesso/diagnóstico por imagem , Abscesso/tratamento farmacológico , Antibacterianos/uso terapêutico , Ceftriaxona/uso terapêutico , Quimioterapia Combinada , Floxacilina/uso terapêutico , Humanos , Infusões Intravenosas , Edema Macular/tratamento farmacológico , Imageamento por Ressonância Magnética , Masculino , Metronidazol/uso terapêutico , Pessoa de Meia-Idade , Celulite Orbitária/diagnóstico por imagem , Celulite Orbitária/tratamento farmacológico
17.
Ophthalmology ; 123(5): 1129-36, 2016 05.
Artigo em Inglês | MEDLINE | ID: mdl-26920098

RESUMO

PURPOSE: To determine whether sulfur hexafluoride (SF6) gas is noninferior to longer-acting gases in macular hole surgery and whether withholding postoperative face-down positioning (FDP) is noninferior to FDP. DESIGN: Registry-style, prospective, nonrandomized, observational cohort study. PARTICIPANTS: Patients with idiopathic macular holes undergoing primary surgery. METHODS: Surgeons were invited to submit clinical details of all macular hole cases receiving surgery. Baseline demographic and clinical information were collected, as well as details of surgical intervention and postoperative posturing advice. Primary follow-up data were collected 3 months postoperatively. MAIN OUTCOME MEASURES: Macular hole closure at 3 months. A noninferiority approach was used, with a noninferiority margin set at 5% decreased frequency of success. RESULTS: A total of 2456 eyes of 2367 patients were included in the study. Outcomes were available in 94.9% of cases (2330/2456). The rate of macular hole closure was 95.0% (2214/2330). Sulfur hexafluoride gas was found to be noninferior to longer-acting gases (95% confidence interval [CI] for adjusted effect on success, -1.76 to +2.25), and noninferiority was demonstrated regardless of macular hole size. Although withholding FDP was found to be noninferior to FDP for the study population as a whole (95% CI for adjusted effect on success, -4.21 to +0.64), the result was inconclusive in holes >400 µm in diameter (95% CI, -9.31 to +1.04). Lack of internal limiting membrane (ILM) peel, increasing hole size, hole duration ≥9 months, increasing age, and 20-gauge surgery all were associated with lower odds of success. Vitreous attachment to the hole margin was not associated with outcome when corrected for hole size, and combined phacovitrectomy surgery was not observed to affect the odds of success in phakic eyes. CONCLUSIONS: Sulfur hexafluoride gas tamponade was noninferior to longer-acting gases in the surgical management of macular hole. Withholding FDP was noninferior to FDP in holes ≤400 µm in diameter. In holes >400 µm in diameter, noninferiority of withholding FDP could not be concluded. We would advise caution if posturing is withheld in this group on the basis of the results of this study and of others.


Assuntos
Tamponamento Interno , Decúbito Ventral , Sistema de Registros , Perfurações Retinianas/cirurgia , Hexafluoreto de Enxofre/administração & dosagem , Vitrectomia , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Feminino , Fluorocarbonos/administração & dosagem , Humanos , Masculino , Pessoa de Meia-Idade , Cuidados Pós-Operatórios , Estudos Prospectivos , Perfurações Retinianas/fisiopatologia , Fatores de Tempo , Acuidade Visual/fisiologia
18.
BMC Psychiatry ; 16: 5, 2016 Jan 13.
Artigo em Inglês | MEDLINE | ID: mdl-26759167

RESUMO

BACKGROUND: Evidence is accumulating that cognitive remediation therapy (CRT) is an effective intervention for patients with schizophrenia or schizoaffective disorder. To date there has been no randomised controlled trial (RCT) cohort study of cognitive remediation within a forensic hospital. The goal of this study is to examine the effectiveness of a trial of cognitive remediation for forensic mental health patients with schizophrenia or schizoaffective disorder. METHODS: An estimated sixty patients will be enrolled in the study. Participants will be randomised to one of two conditions: CRT with treatment as usual (TAU), or TAU. CRT will consist of 42 individual sessions and 14 group sessions. The primary outcome measure for this study is change in cognitive functioning using the MATRICS Consensus Cognitive Battery (MCCB). Secondary outcomes include change in social and occupational functioning, disorganised symptoms, negative symptoms, violence, participation in psychosocial treatment and recovery. In addition to these effectiveness measures, we will examine patient satisfaction. DISCUSSION: Cognitive difficulties experienced by schizophrenia spectrum patients are associated with general functioning, ability to benefit from psychosocial interventions and quality of life. Research into the treatment of cognitive difficulties within a forensic setting is therefore an important priority. The results of the proposed study will help answer the question whether cognitive remediation improves functional outcomes in forensic mental health patients with schizophrenia or schizoaffective disorder. Forensic mental health patients are detained for the dual purpose of receiving treatment and for public protection. There can be conflict between these two roles perhaps causing forensic services to have an increased length of stay compared to general psychiatric admissions. Ultimately a focus on emphasising cognition and general functioning over symptoms may decrease tension between the core responsibilities of forensic mental health services. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT02360813. Trial registered Feb 4th 2015 and last updated May 1(st) 2015.


Assuntos
Terapia Cognitivo-Comportamental/métodos , Psiquiatria Legal/métodos , Transtornos Psicóticos/psicologia , Transtornos Psicóticos/terapia , Esquizofrenia/terapia , Adulto , Idoso , Protocolos Clínicos , Estudos de Coortes , Feminino , Humanos , Masculino , Pessoas Mentalmente Doentes/legislação & jurisprudência , Pessoas Mentalmente Doentes/psicologia , Pessoa de Meia-Idade , Satisfação do Paciente , Qualidade de Vida , Resultado do Tratamento
19.
BMC Psychiatry ; 15: 301, 2015 Nov 23.
Artigo em Inglês | MEDLINE | ID: mdl-26597630

RESUMO

BACKGROUND: Patients admitted to a secure forensic hospital are at risk of a long hospital stay. Forensic hospital beds are a scarce and expensive resource and ability to identify the factors predicting length of stay at time of admission would be beneficial. The DUNDRUM-1 triage security scale and DUNDRUM-2 triage urgency scale are designed to assess need for therapeutic security and urgency of that need while the HCR-20 predicts risk of violence. We hypothesized that items on the DUNDRUM-1 and DUNDRUM-2 scales, rated at the time of pre-admission assessment, would predict length of stay in a medium secure forensic hospital setting. METHODS: This is a prospective study. All admissions to a medium secure forensic hospital setting were collated over a 54 month period (n = 279) and followed up for a total of 66 months. Each patient was rated using the DUNDRUM-1 triage security scale and DUNDRUM-2 triage urgency scale as part of a pre-admission assessment (n = 279) and HCR-20 within 2 weeks of admission (n = 187). Episodes of harm to self, harm to others and episodes of seclusion whilst an in-patient were collated. Date of discharge was noted for each individual. RESULTS: Diagnosis at the time of pre-admission assessment (adjustment disorder v other diagnosis), predicted legal status (sentenced v mental health order) and items on the DUNDRUM-1 triage security scale and the DUNDRUM-2 triage urgency scale, also rated at the time of pre-admission assessment, predicted length of stay in the forensic hospital setting. Need for seclusion following admission also predicted length of stay. CONCLUSIONS: These findings may form the basis for a structured professional judgment instrument, rated prior to or at time of admission, to assist in estimating length of stay for forensic patients. Such a tool would be useful to clinicians, service planners and commissioners given the high cost of secure psychiatric care.


Assuntos
Psiquiatria Legal/estatística & dados numéricos , Tempo de Internação/estatística & dados numéricos , Triagem/estatística & dados numéricos , Violência/estatística & dados numéricos , Adulto , Estudos Transversais , Inglaterra/epidemiologia , Feminino , Hospitais Psiquiátricos/estatística & dados numéricos , Humanos , Masculino , Admissão do Paciente/estatística & dados numéricos , Alta do Paciente/estatística & dados numéricos , Projetos Piloto , Estudos Prospectivos , Medição de Risco , Fatores de Risco
20.
Retina ; 35(9): 1808-16, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25932554

RESUMO

PURPOSE: This study was designed to investigate the optical density of macular pigment in Type 1 and Type 2 diabetes subjects relative to normal controls. METHODS: One hundred and fifty subjects were recruited to the study and divided into one of the three study groups on the basis of their health status, as follows: Group 1: Healthy controls; Group 2: Type 1 diabetes; Group 3: Type 2 diabetes. Macular Pigment Optical Density, at 0.5° of retinal eccentricity, was measured using customized heterochromatic flicker photometry. Dietary intake of macular carotenoids was quantified using a lutein and zeaxanthin food frequency questionnaire. Diabetes type, duration, medication, smoking habits, glycosylated hemoglobin (HbA1C), and serum lipid levels were recorded, whereas visual acuity, body mass index, and diabetic retinopathy grade were measured for each participant. RESULTS: One-way analysis of variance revealed a statistically significant difference in body mass index, age, high-density lipoprotein cholesterol and HbA1C between the three groups (P < 0.01 for all). Chi-square analysis revealed a statistically significant difference in diabetic retinopathy distribution (P < 0.01). None of these variables exhibited a statistically significant correlation with macular pigment optical density for any study group (P > 0.05 for all). There was no difference in dietary carotenoid intake between groups. Macular pigment optical density was lower among Type 2 diabetes subjects (0.33 ± 0.21) compared with Type 1 diabetes (0.49 ± 0.23) and controls (0.48 ± 0.35). General linear model analysis, including age, body mass index, diabetes duration, diabetic retinopathy status, high-density lipoprotein cholesterol, and HbA1C as covariates, revealed a statistically significant effect of diabetes type on macular pigment optical density (F = 2.62; P = 0.04). CONCLUSION: Macular pigment optical density was statistically significantly lower in Type 2 diabetes compared with Type 1 diabetes and normal controls. Although body mass index was higher in the Type 2 diabetes group, the lower macular pigment optical density levels observed among Type 2 diabetes seem not to be attributable to differences in dietary carotenoid intake or to the specific presence of diabetes, diabetic control, duration, or diabetic retinopathy.


Assuntos
Diabetes Mellitus Tipo 1/metabolismo , Diabetes Mellitus Tipo 2/metabolismo , Luteína/metabolismo , Pigmento Macular/metabolismo , Zeaxantinas/metabolismo , Adulto , Idoso , Índice de Massa Corporal , Estudos de Casos e Controles , Estudos Transversais , Dieta , Comportamento Alimentar , Feminino , Hemoglobinas Glicadas/metabolismo , Voluntários Saudáveis , Humanos , Lipídeos/sangue , Luteína/administração & dosagem , Masculino , Pessoa de Meia-Idade , Fotometria , Acuidade Visual/fisiologia , Zeaxantinas/administração & dosagem
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