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1.
Lupus Sci Med ; 11(2)2024 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-38955402

RESUMO

OBJECTIVE: To determine whether intercurrent infections are a risk factor for subsequent disease flares in systemic lupus erythematosus (SLE). METHODS: Demographic and clinical characteristics of 203 patients with SLE participating in the Amsterdam SLE cohort were collected at baseline and during follow-up. Collection of data on infections and SLE flares was registry-based and infections and flares were categorised as minor or major, based on predefined criteria. Proportional hazard models with recurrent events and time-varying covariates were used to estimate the HR of SLE flares. RESULTS: The incidence rates of major and minor infections were 5.3 per 100 patient years and 63.9 per 100 patient years, respectively. The incidence rates of flares were 3.6 and 15.1 per 100 patient years for major flares and minor flares, respectively.In the proportional hazard model, intercurrent infections (major and minor combined) were associated with the occurrence of SLE flares (major and minor combined; HR 1.9, 95% CI: 1.3 to 2.9). The hazard ratio for a major SLE flare following a major infection was 7.4 (95% CI: 2.2 to 24.6). Major infections were not associated with the occurrence of minor flares. CONCLUSIONS: The results of the present study show that intercurrent infections are associated with subsequent SLE flares, which supports the hypothesis that infections may trigger SLE flares.


Assuntos
Infecções , Lúpus Eritematoso Sistêmico , Modelos de Riscos Proporcionais , Humanos , Lúpus Eritematoso Sistêmico/complicações , Feminino , Masculino , Fatores de Risco , Adulto , Pessoa de Meia-Idade , Infecções/epidemiologia , Infecções/complicações , Incidência , Exacerbação dos Sintomas , Países Baixos/epidemiologia , Sistema de Registros , Estudos de Coortes , Recidiva
2.
Ned Tijdschr Geneeskd ; 1672023 11 01.
Artigo em Holandês | MEDLINE | ID: mdl-37930161

RESUMO

BACKGROUND: Oncological survival and quality-of-life improved significantly after introduction of immune checkpoint inhibitors (ICIs). Immunotherapy, however, also decreases immunotolerance, potentially inducing autoimmune reactions. This can result in symptoms mimicking rheumatic diseases. CASE DESCRIPTION: Patient A, 51-years-old, female, was treated with adjuvant nivolumab for metastatic melanoma. After 9 months, she developed arthritis. Prednisone 30 mg/ day and methotrexate significantly improved arthritis, followed by prednisone tapering. Patient B, 75-year-old, male with metastatic melanoma treated with Ipilimumab/Nivolumab developed malaise and reduced muscle strength shortly after treatment start. Patient was suspected of myositis/myocarditis, treated with methylprednisolone, which resulted in a rapid improvement. CONCLUSION: ICIs can cause rheumatic adverse events, resulting in decreased quality of life that may require immunesuppressive treatment. Disruption or cessation of ICIs may occur. These adverse events demand low-threshold rheumatological referral and collaboration between oncologist and rheumatologist. Further research must indicate the most effective immunosuppressive therapies with minimized negative oncological impact.


Assuntos
Artrite , Melanoma , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Inibidores de Checkpoint Imunológico/efeitos adversos , Melanoma/tratamento farmacológico , Melanoma/secundário , Nivolumabe/efeitos adversos , Prednisona/uso terapêutico , Qualidade de Vida
3.
BMJ Health Care Inform ; 30(1)2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37751942

RESUMO

BACKGROUND: Treat-to-target (T2T) is a therapeutic strategy currently being studied for its application in systemic lupus erythematosus (SLE). Patients and rheumatologists have little support in making the best treatment decision in the context of a T2T strategy, thus, the use of information technology for systematically processing data and supporting information and knowledge may improve routine decision-making practices, helping to deliver value-based care. OBJECTIVE: To design and develop an online Clinical Decision Support Systems (CDSS) tool "SLE-T2T", and test its usability for the implementation of a T2T strategy in the management of patients with SLE. METHODS: A prototype of a CDSS was conceived as a web-based application with the task of generating appropriate treatment advice based on entered patients' data. Once developed, a System Usability Score (SUS) questionnaire was implemented to test whether the eHealth tool was user-friendly, comprehensible, easy-to-deliver and workflow-oriented. Data from the participants' comments were synthesised, and the elements in need for improvement were identified. RESULTS: The beta version web-based system was developed based on the interim usability and acceptance evaluation. 7 participants completed the SUS survey. The median SUS score of SLE-T2T was 79 (scale 0 to 100), categorising the application as 'good' and indicating the need for minor improvements to the design. CONCLUSIONS: SLE-T2T is the first eHealth tool to be designed for the management of SLE patients in a T2T context. The SUS score and unstructured feedback showed high acceptance of this digital instrument for its future use in a clinical trial.


Assuntos
Sistemas de Apoio a Decisões Clínicas , Lúpus Eritematoso Sistêmico , Aplicativos Móveis , Telemedicina , Humanos , Lúpus Eritematoso Sistêmico/tratamento farmacológico , Internet
5.
Autoimmun Rev ; 21(12): 103211, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36252930

RESUMO

Lupus nephritis (LN) is a serious complication of systemic lupus erythematosus (SLE) that occurs in about half of patients. LN is characterized by glomerular deposition of immune complexes, leading to subendothelial, mesangial and subepithelial electron dense deposits, triggering immune cell infiltration and glomerular as well as tubulointerstitial injury. Monocytes and macrophages are abundantly present in inflammatory lesions, both in glomeruli and the tubulointerstitium. Here we discuss how monocytes and macrophages are involved in this process and how monocytes and macrophages may represent specific therapeutic targets to control LN.


Assuntos
Lúpus Eritematoso Sistêmico , Nefrite Lúpica , Humanos , Rim/patologia , Nefrite Lúpica/terapia , Glomérulos Renais , Complexo Antígeno-Anticorpo
6.
J Fr Ophtalmol ; 45(5): 504-510, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35260269

RESUMO

PURPOSE: To evaluate the association between hemifacial spasm (HFS) patients and glaucoma as a function of the Botox dosage required. METHODS: A retrospective review of clinical documents and procedure records. RESULTS: Information of 76 consecutive patients (58 females) with HFS who received Botox treatment were reviewed. The age at onset of HFS was 66±11 (32-85) years, and all manifested unilaterally. Ten (13%, 95% confidence interval: 6.5-22.9%) patients were diagnosed with glaucoma, including 8 primary open-angle glaucoma (POAG) (4 unilateral and ipsilateral to the HFS), and 2 bilateral chronic angle-closure glaucoma (CACG). Nine of the 10 patients developed glaucoma after the onset of the HFS. The Botox dosage was significantly higher among those diagnosed with glaucoma (31+/8 vs. 26+/7units, P<0.05). There was a positive relationship between the presenting intraocular pressure (IOP) and the Botox dosage required (R=0.31, P=0.0116). However, there was a weak relationship between the Botox dosage required and the vertical cup to disc ratio (R=0.076, P=0.525). The presenting IOP of the HFS-affected eyes in those diagnosed with glaucoma was higher than those without glaucoma (19±3.5 vs. 13±3.2mmHg, P=<0.05). The presenting IOP between the HFS-affected and unaffected eyes was similar (16±4.8 vs. 15+/4.6mmHg, P=0.430). Smoking status, history of diabetes mellitus, hypertension, hyperlipidemia and obstructive sleep apnea were not different between HFS patients with or without glaucoma. CONCLUSIONS: Hemifacial spasm patients with glaucoma were associated with a higher Botox dosage. We found a positive relationship between the Botox dosage required and the presenting IOP. Whether hemifacial spasm can result in fluctuation of IOP, eventually causing glaucomatous damage, remains to be studied further.


Assuntos
Toxinas Botulínicas Tipo A , Glaucoma de Ângulo Aberto , Glaucoma , Espasmo Hemifacial , Feminino , Glaucoma/tratamento farmacológico , Glaucoma de Ângulo Aberto/complicações , Glaucoma de Ângulo Aberto/diagnóstico , Glaucoma de Ângulo Aberto/tratamento farmacológico , Espasmo Hemifacial/complicações , Espasmo Hemifacial/diagnóstico , Espasmo Hemifacial/tratamento farmacológico , Humanos , Tonometria Ocular
7.
Transcult Psychiatry ; 59(1): 13-27, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-34928737

RESUMO

Filial piety involves the Confucian view that children always have a duty to be obedient and to provide care for their parents. Filial piety has been described as both a risk and a protective factor in depression and suicide. This qualitative study aimed to explore the role of filial piety in the suicidal behavior of Chinese women. Qualitative interviews were conducted with Chinese women with a history of suicidal behavior living in the Beijing area (n = 29). Filial piety data were extracted and analyzed in accordance with constructivist grounded theory. The women described five specific family and filial piety factors and how they influenced their ability to fulfill family role obligations, which was described as a nexus connecting these factors to depression, suicidal behavior, and recovery. The five factors were: 1) rigidity of parental filial expectations, 2) perception of family relationships as positive/supportive or negative/harsh, 3) whether filial piety is of high or low personal value in the woman's life, 4) any experiences of rebellion leading to punitive consequences, and 5) how much filial piety she receives from her children. These factors could inform suicide risk assessments in this population. They can be harnessed as part of recovery and protect against future suicidal behavior.


Assuntos
Pais , Ideação Suicida , Povo Asiático , Criança , China , Feminino , Humanos , Relações Pais-Filho , Fatores de Proteção
8.
Rheumatology (Oxford) ; 60(Suppl 6): vi21-vi28, 2021 12 24.
Artigo em Inglês | MEDLINE | ID: mdl-34951924

RESUMO

In this review, the results of recent and ongoing clinical trials in patients with SLE are discussed. After many unsuccessful trials in the past decade, belimumab was the first biologic specifically designed for SLE that met its primary end point. At the same time, studies on the pathophysiology of SLE have further elucidated the pathways involved in the disease, which has led to the identification of new possible therapeutics and has encouraged the initiation of new trials. These new drugs include biologics that target B cells, T cells and type 1 interferons, and small molecules that inhibit kinases. Other therapeutics aim to restore immunological balance by restoring tolerance. Results from phase II and even phase III trials are promising and it is likely that some of the therapeutics discussed will receive approval in the following years. Hopefully, this will allow for more tailor-made medicine for SLE patients in the future.


Assuntos
Terapia Biológica/métodos , Lúpus Eritematoso Sistêmico/tratamento farmacológico , Lúpus Eritematoso Sistêmico/imunologia , Humanos
9.
AJNR Am J Neuroradiol ; 42(2): 327-333, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33384292

RESUMO

BACKGROUND: Newer flow diverters are enhanced with antithrombogenic surface modifications like the Pipeline Embolization Device with Shield Technology and the Derivo Embolization Device and are purported to facilitate deployment and reduce ischemic events. PURPOSE: Our aim was to review the safety and efficacy of surface-modified flow diverters in treating patients with cerebral aneurysms. DATA SOURCES: We used Preferred Reporting Items for Systematic Reviews and Meta-Analyses-compliant systematic review and meta-analysis covering 3 major data bases and gray literature between 2014 and 2019. STUDY SELECTION: Two reviewers independently reviewed human studies of surface-modified flow diverters for eligibility based on predetermined criteria. DATA ANALYSIS: The random effects model and Freeman-Tukey arcsine transformation were used to pool efficacy outcomes (technical success, aneurysm occlusion at 6 and 12 months) and safety outcomes (mortality, morbidity, all ischemia, and serious ischemia). Subgroup analysis was performed to compare outcomes between 2 different flow diverters. DATA SYNTHESIS: Eight single-arm case series involving 911 patients and 1060 aneurysms were included. The median follow-up was 8.24 months. Pooled estimate for technical success was 99.6%, while the aneurysm occlusion at 6 and 12 months were 80.5%, and 85.6%, respectively. Pooled estimates for mortality, morbidity, total ischemia, and serious ischemia rates were 0.7%, 6.0%, 6.7%, and 1.8%, respectively. Most studies were of good quality, and no significant heterogeneity was observed. LIMITATIONS: Limitations include a retrospective, observational design in some studies; heterogeneous and underreported antiplatelet therapy; and potential performance and ecologic bias. CONCLUSIONS: Early-to-midterm safety and efficacy for surface-modified flow diverters appear comparable with older devices, especially for small, unruptured anterior circulation aneurysms. Long-term clinical data are required to further corroborate these results.


Assuntos
Prótese Vascular , Embolização Terapêutica/instrumentação , Procedimentos Endovasculares/instrumentação , Aneurisma Intracraniano/terapia , Adulto , Idoso , Prótese Vascular/efeitos adversos , Embolização Terapêutica/métodos , Procedimentos Endovasculares/métodos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Resultado do Tratamento
10.
Omega (Westport) ; 82(3): 488-499, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30577718

RESUMO

Social workers were introduced to funeral homes in China amid the transition and expansion of both the funeral home industry and the social work profession and are proving to play a valuable, though under-researched role in serving not just clients but also communities and funeral home staff. Funeral home social work fills gaps in after-death care and mental health and is distinct from palliative, hospice, end-of-life, and bereavement social work. Based on the experiences of funeral homes that employ social workers, this article argues that this innovation may bring new ideas to bridge some of the service gaps in after-death care in China and globally. This article outlines the support that will be needed from funeral homes, social work service agencies, and educational and research institutes to facilitate further development of funeral home mental health and social services and to promote the professionalization of funeral home social workers in China.


Assuntos
Funerárias , Cuidados Paliativos na Terminalidade da Vida , China , Humanos , Cuidados Paliativos , Serviço Social
11.
East Asian Arch Psychiatry ; 31(4): 97-104, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34987120

RESUMO

OBJECTIVES: To determine the psychometric properties of the Chinese version of the work and social adjustment scale (CWSAS) in outpatients with common mental disorders, and to evaluate the correlations of CWSAS with Physical Health Questionnaire-9 (PHQ-9), General Anxiety Disorder-7 (GAD-7), World Health Organization Five Well-being Index (WHO-5), and Chinese version of the Perceived Stress Scale-10 (CPSS-10). METHODS: Forward and backward translations of the CWSAS was performed. Between October 2018 and March 2020, 252 outpatients with a common mental disorder who had a job or a job plan were recruited from two psychiatric centres in Hong Kong. Participants were asked to complete the CWSAS, PHQ-9, GAD-7, WHO-5, and CPSS-10. Classical test theory and Rasch analysis were undertaken to determine the psychometric properties of the CWSAS and its correlations with other tools. RESULTS: Principal component analysis revealed that the CWSAS was a one-factor structure and showed adequate convergent and discriminant validities, internal consistency, item-total correlation, and inter-item correlation. There was a significant group difference in terms of employment status. CPSS-10 and PHQ-9 were predictors for CWSAS score. The CWSAS was a distinct factor among other outcome measures. Rasch analysis indicated that the CWSAS was well-targeted and unidimensional. The CWSAS had an adequate person separation index, item separation index, person reliability, and item reliability. No categorical disordering was found, whereas inadequate adjacent threshold distance was reported. The item of ability to work indicated a noticeable differential item functioning in employment status and main source of finance. CONCLUSION: The CWSAS is psychometrically appropriate to measure functional outcomes in outpatients with common mental disorders.


Assuntos
Transtornos Mentais , Pacientes Ambulatoriais , Hong Kong , Humanos , Psicometria , Reprodutibilidade dos Testes , Ajustamento Social , Inquéritos e Questionários
12.
Phytopathology ; 111(5): 890-892, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33263425

RESUMO

Bacillus velezensis EB14, isolated from a leaf of Populus × jackii, possesses antagonistic activity against Sphaerulina musiva, a fungal pathogen of Populus sp. that causes leaf spots and stem cankers on poplars, limiting the utility of hybrid poplars as plantation trees. We sequenced the genome of B. velezensis EB14 to gain insights into the underlying basis of its antagonistic activity. Here, we report the complete genome sequence of B. velezensis EB14, a gram-positive bacterium of the family Bacillaceae. Through antiSMASH analysis, we predicted several gene clusters coding for the biosynthesis of antimicrobial compounds and several genes involved in plant bacterial interactions. These findings support the potential of developing B. velezensis EB14 as a biocontrol agent against S. musiva in poplar plantations. The genome of B. velezensis EB14 along with genome sequences of closely related B. velezensis species are invaluable for comparative genomic analyses to gain insights into bacterial, fungal, and host plant interactions.


Assuntos
Ascomicetos , Populus , Ascomicetos/genética , Bacillus , Genoma Bacteriano/genética , Doenças das Plantas
13.
Hong Kong Med J ; 26(6): 479-485, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33284132

RESUMO

OBJECTIVES: To investigate the effects of pre-hospital stroke screening and notification on reperfusion therapy for patients with acute ischaemic stroke. METHODS: Pre-hospital stroke screening criteria were established based on a modified version of the Face Arm Speech Time (FAST) test. Screening was performed during ambulance transport by emergency medical service (EMS) personnel who completed a 2-hour training session on stroke screening. Temporal trends affecting acute ischaemic stroke investigation and intervention were compared before and after implementation of the pre-hospital screening. RESULTS: From July 2018 to October 2019, 298 patients with suspected stroke were screened by EMS personnel during ambulance transport prior to hospital arrival. Of these 298 patients, 213 fulfilled the screening criteria, 166 were diagnosed with acute stroke, and 32 received reperfusion therapy. The onset-to-door time was shortened by more than 1.5 hours (100.6 min vs 197.6 min, P<0.001). The door-to-computed tomography time (25.6 min vs 32.0 min, P=0.021), door-to-needle time (49.2 min vs 70.1 min, P=0.003), and door-to-groin puncture time for intra-arterial mechanical thrombectomy (126.7 min vs 168.6 min, P=0.04) were significantly shortened after implementation of the pre-hospital screening and notification, compared with historical control data of patients admitted from January 2018 to June 2018, before implementation of the screening system. CONCLUSION: Implementation of pre-hospital stroke screening using criteria based on a modified version of the FAST test, together with pre-arrival notification, significantly shortened the door-to-reperfusion therapy time for patients with ischaemic stroke. Pre-hospital stroke screening during ambulance transport by EMS personnel who complete a 2-hour focused training session is effective for identifying reperfusion-eligible patients with stroke.


Assuntos
Programas de Triagem Diagnóstica , Serviços Médicos de Emergência/métodos , AVC Isquêmico/diagnóstico , Reperfusão/estatística & dados numéricos , Tempo para o Tratamento/estatística & dados numéricos , Idoso , Idoso de 80 Anos ou mais , Diagnóstico Precoce , Auxiliares de Emergência/educação , Feminino , Implementação de Plano de Saúde , Humanos , AVC Isquêmico/terapia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Estudos Retrospectivos
14.
Rheumatology (Oxford) ; 59(Suppl5): v19-v28, 2020 12 05.
Artigo em Inglês | MEDLINE | ID: mdl-33280016

RESUMO

Treat-to-target strategies have changed the approach to management of many chronic conditions, with improvements in patient outcomes. The key to success of treat to target is the availability of validated treatment endpoints, which have been difficult to derive for SLE, a condition notorious for its heterogeneity. This review will focus on the development and validation of the definitions of remission in SLE framework and the lupus low disease activity state. Lupus low disease activity state is more attainable than remission, with a stepwise concentric relationship between the target states indicating increasing stringency. Both lupus low disease activity state and definitions of remission in SLE remission have been proven to be associated with reduction in disease flares, reduced risk of accrual of irreversible end organ damage, and improvement in patient reported outcomes. These endpoints have therefore provided the key for the development of a treat-to-target approach in clinical practice in SLE and for the design of future clinical trials.


Assuntos
Lúpus Eritematoso Sistêmico/tratamento farmacológico , Humanos , Lúpus Eritematoso Sistêmico/diagnóstico , Lúpus Eritematoso Sistêmico/patologia , Indução de Remissão/métodos , Resultado do Tratamento
15.
Glob Public Health ; 15(11): 1730-1739, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32450777

RESUMO

A cross-national qualitative suicide study was conducted by Tsinghua University and the University of Toronto with two samples of Chinese women in Beijing and Toronto. The aim of this article is to reflect on lessons learned from this collaborative study. A literature review guided the analysis. A focus group was conducted with members of both research teams. A semi-structured interview guide was developed to explore the researchers' experiences of participating in the cross-national study. Focus group transcript data and observations from authors informed the analysis, situated in the existing literature on cross-national qualitative health research and guided by Baistow's cross-national research frame. Our study highlights how cross-national research involves conceptual and practical challenges that require negotiation. Such research also holds many opportunities, including (1) using a different cultural lens to understand differences and clarify similarities cross-culturally; (2) co-constructing knowledge through collaboration; (3) deconstructing one's own assumptions; and (4) engaging in an inspiring and empowering experience in collaboration.


Assuntos
Cooperação Internacional , Pesquisa , Suicídio , Canadá , China , Grupos Focais , Humanos , Pesquisa Qualitativa , Pesquisa/organização & administração
17.
Aust Vet J ; 98(6): 250-255, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32096215

RESUMO

OBJECTIVE: Evaluate the effect of topical 1% cannabidiol on second intention wound healing in distal limb wounds of horses. DESIGN: Experimental. ANIMALS: Six Standardbred horses. METHODS: A total of five 2.5 cm × 2.5 cm full thickness skin wounds were created on the dorsomedial aspect of the metacarpi of 6 horses. Wounds were contaminated with faeces on the day of wound creation. Each wound was then assigned to a treatment group; compounded 1% cannabidiol in unique manuka factor (UMF) 5 manuka honey, UMF 5 manuka honey, UMF 20 manuka honey or saline. Each treatment was applied topically daily for a total of 42 days. Legs were bandaged and bandages were changed, daily, for 13 days postoperatively. Digital photographs of each wound were taken on day 1 then weekly for 6 weeks. Wound size, daily healing rate and total time to healing were recorded and compared statistically. RESULTS: Irrespective of the treatment, wounds did not retract as expected in the first 7 days after wound creation. There was no difference in wound area, daily healing rate, days to complete healing between treatment groups. CONCLUSIONS: This preliminary study failed to demonstrate any difference in wound healing variables between treatment groups in this model of second intention wound healing. This was unexpected due to the established effects of UMF 20 manuka honey on wound healing using the same model. This may be due to systemic effects of cannabidiol and study design. Further research into the use of cannabidiol in equine wounds is warranted.


Assuntos
Fator V , Mel , Animais , Canabidiol , Cavalos , Intenção , Extratos Vegetais , Cicatrização
18.
AJNR Am J Neuroradiol ; 40(9): 1523-1525, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-31345945

RESUMO

Cerebral hyperperfusion syndrome is a serious complication of endovascular angioplasty and stent placement for long-standing intracranial stenosis, resulting in neurologic dysfunction, seizure, or reperfusion hemorrhage. Rigorous control of blood pressure is commonly used in the perioperative period to prevent cerebral hyperperfusion syndrome, but the optimal blood pressure is often arbitrary. We describe the angiographic features that reflect impaired cerebral autoregulation and microvascular transit abnormality, which may be used to gauge the optimal blood pressure parameters in the immediate postintervention period for prevention of cerebral hyperperfusion syndrome.


Assuntos
Angioplastia/efeitos adversos , Encéfalo/irrigação sanguínea , Encéfalo/diagnóstico por imagem , Arteriosclerose Intracraniana/cirurgia , Complicações Pós-Operatórias/diagnóstico por imagem , Idoso , Angiografia/métodos , Feminino , Humanos , Masculino , Stents
19.
Aust Vet J ; 97(5): 144-148, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-31025330

RESUMO

OBJECTIVE: To quantify the time to clear dexamethasone from plasma and urine of horses following a single nebulisation. DESIGN: Experimental using six Standardbred mares. METHODS: Dexamethasone sodium phosphate (0.04 mg/kg) diluted in 0.9% sodium chloride was administered as an aerosol using a Flexineb E2® nebuliser. Blood samples (0, 2, 4, 6, 8, 10, 12, 24, 32, 48, 72 and 96 h) and urine samples (0, 1, 4, 8, 24, 32, 48, 72 and 96 h) were collected for analysis using liquid chromatography mass spectrometry. RESULTS: Maximum plasma concentrations (tmax ) were reached by the earliest detection point (2 h) after nebulisation (0.6-1.8 ng/mL), but was no longer detectable at 48 h. However, in one horse 0.1 ng/mL was found at 96 h after three consecutive readings of 0 ng/mL. The tmax in urine was reached by the earliest collection point (1 h) after nebulisation (3.2-23.8 ng/mL), but was no longer present in urine at 72 h in five horses, while detectable levels (0.1 ng/mL) were still present at 96 h in one horse. CONCLUSIONS: A single dose of 0.04 mg/kg of DSP administered as an aerosol through a FlexinebE2® mask was no longer detectable in blood at 48 h in six horses tested, but one horse returned a reading of 0.1 ng/mL at 96 h after having no detectable levels. Dexamethasone was not detectable in urine at 72 h in five horses but was detectable at a low concentration (0.1 ng/mL) at 96 h in one horse.


Assuntos
Anti-Inflamatórios/sangue , Anti-Inflamatórios/urina , Dexametasona/sangue , Dexametasona/urina , Cavalos/sangue , Cavalos/urina , Animais , Anti-Inflamatórios/uso terapêutico , Asma/tratamento farmacológico , Asma/veterinária , Dexametasona/uso terapêutico , Feminino , Doenças dos Cavalos/tratamento farmacológico , Nebulizadores e Vaporizadores/veterinária , Projetos Piloto , Distribuição Aleatória
20.
Neuropsychopharmacology ; 44(7): 1198-1206, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30758328

RESUMO

Attention deficit hyperactivity disorder (ADHD) is a common neuropsychiatric condition that has been strongly associated with changes in sleep and circadian rhythms. Circadian rhythms are near 24-h cycles that are primarily generated by an endogenous circadian timekeeping system, encoded at the molecular level by a panel of clock genes. Stimulant and non-stimulant medication used in the management of ADHD has been shown to potentially impact on circadian processes and their behavioral outputs. In the current study, we have analyzed circadian rhythms in daily activity and sleep, and the circadian gene expression in a cohort of healthy controls (N = 22), ADHD participants not using ADHD-medication (N = 17), and participants with ADHD and current use of ADHD medication (N = 17). Rhythms of sleep/wake behavior were assessed via wrist-worn actigraphy, whilst rhythms of circadian gene expression were assessed ex-vivo in primary human-derived dermal fibroblast cultures. Behavioral data indicate that patients with ADHD using ADHD-medication have lower relative amplitudes of diurnal activity rhythms, lower sleep efficiency, more nocturnal activity but not more nocturnal wakenings than both controls and ADHD participants without medication. At the molecular level, there were alterations in the expression of PER2 and CRY1 between ADHD individuals with no medication compared to medicated ADHD patients or controls, whilst CLOCK expression was altered in patients with ADHD and current medication. Analysis of fibroblasts transfected with a BMAL1:luc reporter showed changes in the timing of the peak expression across the three groups. Taken together, these data support the contention that both ADHD and medication status impact on circadian processes.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/genética , Transtorno do Deficit de Atenção com Hiperatividade/fisiopatologia , Peptídeos e Proteínas de Sinalização do Ritmo Circadiano/genética , Ritmo Circadiano , Sono/fisiologia , Actigrafia , Adulto , Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Proteínas CLOCK/genética , Células Cultivadas , Relógios Circadianos/genética , Criptocromos/genética , Feminino , Fibroblastos/metabolismo , Expressão Gênica , Humanos , Masculino , Pessoa de Meia-Idade , Proteínas Circadianas Period/genética
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