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1.
Pract Radiat Oncol ; 2024 Jul 22.
Artigo em Inglês | MEDLINE | ID: mdl-39047905

RESUMO

This report details a pharyngeal constrictor muscle (PCM)-sparing stereotactic body radiation therapy (SBRT) using our institutional technique of "Tongue-out" RT (TORT) for treating a local recurrent cancer in the uvula (GTVuvula) in a patient with history of a definitive chemo-RT (70 Gy with weekly cisplatin) for a locally advanced laryngeal cancer four years ago. TORT includes optimizing the patients' reproducible tongue-out position using readily available medicine cup (30 cc) followed by sculping the thermoplastic mask with tongue-out, and real-time visual monitoring of the tongue position during the CT-simulation scan, CBCT acquisition, and treatment. Between arcs during volumetric modulated arc therapy (VMAT), time for tongue relaxation and saliva swallowing can be given to the patient. Without TORT, the patient's GTVuvula abutted the medial aspect of superior PCM (medial-sPCM) and a substantial volume of the previously irradiated sPCM would have received high radiation dose from this salvage SBRT (32.5 Gy in 5 fractions). Compared to without TORT, the shortest distance between medial-sPCM-to-GTVuvula was increased by 13 mm with TORT, which reduced radiation dose to sPCM in salvage SBRT plan. The mean dose (Dmean) to sPCM was decreased from 20.5 Gy without TORT to 12.7 Gy with TORT. With TORT, minimal sPCM volumes fell within higher isodose line: volume receiving ≥ 60% prescription dose (V60%Rx), V80%Rx, and V100%Rx to sPCM was, 4.8 vs. 0.7 cc (without vs. with TORT, respectively), 2.9 vs. 0.19 cc, and 1.6 vs. 0.04 cc, respectively. Maximum dose (Dmax) to medial-sPCM was 34.6 Gy without TORT vs. 22.7 Gy with TORT. These high doses to the sPCM and intrafractional swallowing-related geographic misses of GTVuvula were avoided through the application of TORT in this salvage re-RT setting. The patient successfully finished salvage SBRT with TORT resulting no dysphagia or mucositis and maintained complete response at 12 months after treatment.

2.
ArXiv ; 2024 Jun 26.
Artigo em Inglês | MEDLINE | ID: mdl-38883234

RESUMO

Normative models of brain structure estimate the effects of covariates such as age and sex using large samples of healthy controls. These models can then be applied to smaller clinical cohorts to distinguish disease effects from other covariates. However, these advanced statistical modelling approaches can be difficult to access, and processing large healthy cohorts is computationally demanding. Thus, accessible platforms with pre-trained normative models are needed. We present such a platform for brain morphology analysis as an open-source web application https://cnnplab.shinyapps.io/normativemodelshiny/, with six key features: (i) user-friendly web interface, (ii) individual and group outputs, (iii) multi-site analysis, (iv) regional and whole-brain analysis, (v) integration with existing tools, and (vi) featuring multiple morphology metrics. Using a diverse sample of 3,276 healthy controls across 21 sites, we pre-trained normative models on various metrics. We validated the models with a small clinical sample of individuals with bipolar disorder, showing outputs that aligned closely with existing literature only after applying our normative modelling. Further validation with a cohort of temporal lobe epilepsy showed agreement with previous group-level findings and individual-level seizure lateralisation. Finally, with the ability to investigate multiple morphology measures in the same framework, we found that biological covariates are better explained in specific morphology measures, and for clinical applications, only some measures are sensitive to the disease process. Our platform offers a comprehensive framework to analyse brain morphology in clinical and research settings. Validations confirm the superiority of normative models and the advantage of investigating a range of brain morphology metrics together.

3.
Ecology ; 105(7): e4328, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38782017

RESUMO

Since 1968, the Australian Dung Beetle Project has carried out field releases of 43 deliberately introduced dung beetle species for the biological control of livestock dung and dung-breeding pests. Of these, 23 species are known to have become established. For most of these species, sufficient time has elapsed for population expansion to fill the extent of their potential geographic range through both natural and human-assisted dispersal. Consequently, over the last 20 years, extensive efforts have been made to quantify the current distribution of these introduced dung beetles, as well as the seasonal and spatial variation in their activity levels. Much of these data and their associated metadata have remained unpublished, and they have not previously been synthesized into a cohesive dataset. Here, we collate and report data from the three largest dung beetle monitoring projects from 2001 to 2022. Together, these projects encompass data collected from across Australia, and include records for all 23 species of established dung beetles introduced for biocontrol purposes. In total, these data include 22,718 presence records and 213,538 absence records collected during 10,272 sampling events at 546 locations. Most presence records (97%) include abundance data. In total, 1,752,807 dung beetles were identified as part of these data. The distributional occurrence and abundance data can be used to explore questions such as factors influencing dung beetle species distributions, dung beetle biocontrol, and insect-mediated ecosystem services. These data are provided under a CC-BY-NC 4.0 license and users are encouraged to cite this data paper when using the data.


Assuntos
Besouros , Espécies Introduzidas , Besouros/fisiologia , Animais , Austrália , Fatores de Tempo , Distribuição Animal , Dinâmica Populacional , Densidade Demográfica
4.
J Affect Disord ; 360: 139-145, 2024 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-38810780

RESUMO

BACKGROUND: Lithium is an effective mood stabiliser, but its mechanism of action is incompletely defined. Even at very low doses, lithium may have neuroprotective effects, but it is not clear if these relate to brain lithium concentration in vivo. We have developed magnetic resonance imaging (7Li-MRI) methods to detect lithium in the brain following supplementation at a very low dose. METHODS: Lithium orotate supplements were taken by nine healthy adult male subjects (5 mg daily) for up to 28 days, providing 2-7 % of the lithium content of a typical therapeutic lithium carbonate dose. One-dimensional 7Li-images were acquired on a 3.0 T MRI scanner. All subjects were scanned on day 14 or 28; seven were scanned on both, one at baseline and one after 7-days washout. RESULTS: 7Li-MR signal amplitude was broadly stable between days 14 and 28. Two subjects had notably higher 7Li-signal intensities (approximately 2-4×) compared to other study participants. LIMITATIONS: Lithium adherence was self-reported by all participants without formal validation. The coarse spatial resolution necessary for detection of low concentrations of 7Li exhibits imperfect spatial separation of signal from adjacent pixels. CONCLUSIONS: 7Li-MRI performed using a clinical 3T scanner demonstrated detection of lithium in the brain at very low concentration, in the range of approximately 10-60 mM. The methods are suited to studies assessing low dose lithium administration in psychiatric and neurodegenerative disorders, and permit the comparison of different lithium salt preparations at a time of emerging interest in the field.


Assuntos
Encéfalo , Suplementos Nutricionais , Carbonato de Lítio , Imageamento por Ressonância Magnética , Humanos , Masculino , Adulto , Encéfalo/diagnóstico por imagem , Encéfalo/efeitos dos fármacos , Carbonato de Lítio/administração & dosagem , Adulto Jovem , Voluntários Saudáveis , Antimaníacos/administração & dosagem
5.
Allergy ; 79(5): 1208-1218, 2024 05.
Artigo em Inglês | MEDLINE | ID: mdl-38334146

RESUMO

BACKGROUND: Component-resolved diagnosis allows detection of IgE sensitization having the advantage of reproducibility and standardization compared to crude extracts. The main disadvantage of the traditional allergen identification methods, 1- or 2-dimensional western blotting and screening of expression cDNA libraries with patients' IgEs, is that the native structure of the protein is not necessarily maintained. METHODS: We used a novel immunoprecipitation technique in combination with mass spectrometry to identify new allergens of Aspergillus fumigatus. Magnetic Dynabeads coupled with anti-human IgE antibodies were used to purify human serum IgE and subsequently allergens from A. fumigatus protein extract. RESULTS: Of the 184 proteins detected by subsequent mass peptide fingerprinting, a subset of 13 were recombinantly expressed and purified. In a panel of 52 A. fumigatus-sensitized people with asthma, 23 non-fungal-sensitized asthmatics and 18 healthy individuals, only the former showed an IgE reaction by immunoblotting and/or ELISA. We discovered 11 proteins not yet described as A. fumigatus allergens, with fructose-bisphosphate aldolase class II (FBA2) (33%), NAD-dependent malate dehydrogenase (31%) and Cu/Zn superoxide dismutase (27%) being the most prevalent. With respect to these three allergens, native versus denatured protein assays indicated a better recognition of the native proteins. Seven of 11 allergens fulfilled the WHO/IUIS criteria and were accepted as new A. fumigatus allergens. CONCLUSION: In conclusion, we introduce a straightforward method of allergen identification from complex allergenic sources such as A. fumigatus by immunoprecipitation combined with mass spectrometry, which has the advantage over traditional methods of identifying allergens by maintaining the structure of the proteins.


Assuntos
Alérgenos , Antígenos de Fungos , Aspergillus fumigatus , Asma , Imunoglobulina E , Humanos , Aspergillus fumigatus/imunologia , Asma/imunologia , Asma/diagnóstico , Alérgenos/imunologia , Imunoglobulina E/imunologia , Imunoglobulina E/sangue , Masculino , Feminino , Antígenos de Fungos/imunologia , Adulto , Pessoa de Meia-Idade , Imunoprecipitação , Proteínas Fúngicas/imunologia , Espectrometria de Massas , Idoso , Adulto Jovem
6.
Transl Psychiatry ; 14(1): 109, 2024 Feb 23.
Artigo em Inglês | MEDLINE | ID: mdl-38395906

RESUMO

Lithium is the gold standard treatment for bipolar disorder (BD). However, its mechanism of action is incompletely understood, and prediction of treatment outcomes is limited. In our previous multi-omics study of the Pharmacogenomics of Bipolar Disorder (PGBD) sample combining transcriptomic and genomic data, we found that focal adhesion, the extracellular matrix (ECM), and PI3K-Akt signaling networks were associated with response to lithium. In this study, we replicated the results of our previous study using network propagation methods in a genome-wide association study of an independent sample of 2039 patients from the International Consortium on Lithium Genetics (ConLiGen) study. We identified functional enrichment in focal adhesion and PI3K-Akt pathways, but we did not find an association with the ECM pathway. Our results suggest that deficits in the neuronal growth cone and PI3K-Akt signaling, but not in ECM proteins, may influence response to lithium in BD.


Assuntos
Transtorno Bipolar , Lítio , Humanos , Lítio/farmacologia , Lítio/uso terapêutico , Transtorno Bipolar/tratamento farmacológico , Transtorno Bipolar/genética , Proteínas Proto-Oncogênicas c-akt/genética , Fosfatidilinositol 3-Quinases/genética , Estudo de Associação Genômica Ampla , Multiômica , Adesões Focais
7.
BMC Psychiatry ; 23(1): 842, 2023 11 15.
Artigo em Inglês | MEDLINE | ID: mdl-37968619

RESUMO

BACKGROUND: A substantial proportion of people with bipolar disorder (BD) experience persistent cognitive difficulties associated with impairments in psychosocial functioning and a poorer disorder course. Emerging evidence suggests that cognitive remediation (CR), a psychological intervention with established efficacy in people with schizophrenia, can also benefit people with BD. Following a proof-of-concept trial showing that CR is feasible and potentially beneficial for people with BD, we are conducting an adequately powered trial in euthymic people with BD to 1) determine whether an individual, therapist-supported, computerised CR can reduce cognitive difficulties and improve functional outcomes; and 2) explore how CR exerts its effects. METHODS: CRiB2 is a two-arm, assessor-blind, multi-site, randomised controlled trial (RCT) comparing CR to treatment-as-usual (TAU). Participants are people with a diagnosis of BD, aged between 18 and 65, with no neurological or current substance use disorder, and currently euthymic. 250 participants will be recruited through primary, secondary, tertiary care, and the community. Participants will be block-randomised (1:1 ratio, stratified by site) to continue with their usual care (TAU) or receive a 12-week course of therapy and usual care (CR + TAU). The intervention comprises one-on-one CR sessions with a therapist supplemented with independent cognitive training for 30-40 h in total. Outcomes will be assessed at 13- and 25-weeks post-randomisation. Efficacy will be examined by intention-to-treat analyses estimating between-group differences in primary (i.e., psychosocial functioning at week 25 measured with the Functional Assessment Short Test) and secondary outcomes (i.e., measures of cognition, mood, patient-defined goals, and quality of life). Global cognition, metacognitive skills, affect fluctuation, and salivary cortisol levels will be evaluated as putative mechanisms of CR through mediation models. DISCUSSION: This study will provide a robust evaluation of efficacy of CR in people with BD and examine the putative mechanisms by which this therapy works. The findings will contribute to determining the clinical utility of CR and potential mechanisms of action. TRIAL REGISTRATION: Cognitive Remediation in Bipolar 2 (CRiB2): ISRCTN registry: https://www.isrctn.com/ISRCTN10362331 . Registered 04 May 2022. Overall trial status: Ongoing; Recruitment status: Recruiting.


Assuntos
Transtorno Bipolar , Terapia Cognitivo-Comportamental , Remediação Cognitiva , Humanos , Adolescente , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Idoso , Transtorno Bipolar/terapia , Transtorno Bipolar/psicologia , Terapia Cognitivo-Comportamental/métodos , Afeto , Cognição , Resultado do Tratamento , Ensaios Clínicos Controlados Aleatórios como Assunto
9.
Res Sq ; 2023 Oct 03.
Artigo em Inglês | MEDLINE | ID: mdl-37886563

RESUMO

Lithium is the gold standard treatment for bipolar disorder (BD). However, its mechanism of action is incompletely understood, and prediction of treatment outcomes is limited. In our previous multi-omics study of the Pharmacogenomics of Bipolar Disorder (PGBD) sample combining transcriptomic and genomic data, we found that focal adhesion, the extracellular matrix (ECM), and PI3K-Akt signaling networks were associated with response to lithium. In this study, we replicated the results of our previous study using network propagation methods in a genome-wide association study of an independent sample of 2,039 patients from the International Consortium on Lithium Genetics (ConLiGen) study. We identified functional enrichment in focal adhesion and PI3K-Akt pathways, but we did not find an association with the ECM pathway. Our results suggest that deficits in the neuronal growth cone and PI3K-Akt signaling, but not in ECM proteins, may influence response to lithium in BD.

10.
Psychol Med ; 53(8): 3416-3425, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35238291

RESUMO

BACKGROUND: The relationship between major depressive disorder (MDD) and personality disorders is complex, with implications for diagnosis and treatment. We sought to explore the relationship between these disorders quantitatively in an inpatient setting. METHODS: We conducted a structured observational study exploring symptoms of depression and selected neurocognitive functions over the span of an inpatient admission in those with depression and personality disorders. Sixty inpatients presenting with symptoms of depression completed ratings of mood and neurocognitive function. Diagnosis was confirmed by structured clinical interview (SCID-5-RV) at discharge and used to allocate patients to one of the two groups for analysis: those with MDD-only and those with a personality disorder (with or without MDD). RESULTS: On admission, observer-based ratings of depression were significantly higher in the MDD-only group while subjective ratings were higher in the personality disorder group. Depression rating scores lessened in both groups during the admission, but at discharge, the personality disorder group continued to report higher subjective ratings. The personality disorder group also rated themselves as more cognitively impaired than the MDD-only group and unlike the MDD-only group, they did not report subjective improvements in cognitive function over the course of admission. Objective assessment of cognitive function demonstrated improvements in both groups. CONCLUSIONS: In this study, the presence of a personality disorder was associated with greater subjective severity of depressive symptomatology and selected neurocognitive functioning, despite similar or lower objective severity in comparison with those with MDD. This finding has implications for understanding the patient journey through health care settings.


Assuntos
Transtorno Depressivo Maior , Humanos , Transtorno Depressivo Maior/psicologia , Pacientes Internados , Depressão , Escalas de Graduação Psiquiátrica , Transtornos da Personalidade/diagnóstico , Personalidade
11.
BJPsych Bull ; 47(2): 71-76, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35177146

RESUMO

AIMS AND METHOD: A supply disruption alert in 2020, now rescinded, notified UK prescribers of the planned discontinuation of Priadel® (lithium carbonate) tablets. This service evaluation explored lithium dose and plasma levels before and after the switching of lithium brands, in order to determine the interchangeability of different brands of lithium from a pharmacokinetic perspective. RESULTS: Data on the treatment of 37 patients switched from Priadel® tablets were analysed. Switching to Camcolit® controlled-release tablets at the same dose did not result in meaningful differences in plasma lithium levels. Dose adjustment and known or suspected poor medication adherence were associated with greater variability in plasma lithium levels on switching brands. CLINICAL IMPLICATIONS: For comparable pre- and post-switch doses in adherent patients, the most common brands of lithium carbonate appear to produce similar plasma lithium levels. British National Formulary guidance relating to switching lithium brands may be unnecessarily complex.

12.
Neurosci Biobehav Rev ; 144: 104975, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36436738

RESUMO

BACKGROUND: Lithium is widely evidenced for its neuropsychiatric benefits. Advantages of 'sub-therapeutic' doses are increasingly being reported, which is apposite given enduring concerns around adverse effects of 'therapeutic' doses. We aimed to synthesise all available evidence from interventional studies investigating low-dose lithium (LDL) across neuropsychiatric outcomes. METHODS: Electronic databases were systematically searched to include studies where a group of adult humans were treated with LDL (∼serum level ≤0.6 mmol/L), where data describing a neuropsychiatric outcome were reported either before and after treatment, and/or between lithium and a comparator. RESULTS: 18 articles were examined and grouped according to outcome domain (cognition, depression, mania, and related constructs e.g., suicidality). Significant benefits (versus placebo) were identified for attenuating cognitive decline, and potentially as an adjunctive therapy for people with depression/mania. Across studies, LDL was reported to be safe. CONCLUSIONS: Despite the paucity and heterogeneity of studies, LDL's apparent pro-cognitive effects and positive safety profile open promising avenues in the fields of neurodegeneration, and augmentation in affective disorders. We urge future examinations of LDL's potential to prevent cognitive/affective syndromes.


Assuntos
Antipsicóticos , Lítio , Adulto , Humanos , Lítio/uso terapêutico , Antipsicóticos/uso terapêutico , Mania/induzido quimicamente , Mania/tratamento farmacológico , Transtornos do Humor/tratamento farmacológico
13.
Allergy ; 78(1): 156-167, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-35986608

RESUMO

BACKGROUND: Interleukin (IL)-33 is an upstream regulator of type 2 (T2) eosinophilic inflammation and has been proposed as a key driver of some asthma phenotypes. OBJECTIVE: To derive gene signatures from in vitro studies of IL-33-stimulated cells and use these to determine IL-33-associated enrichment patterns in asthma. METHODS: Signatures downstream of IL-33 stimulation were derived from our in vitro study of human mast cells and from public datasets of in vitro stimulated human basophils, type 2 innate lymphoid cells (ILC2), regulatory T cells (Treg) and endothelial cells. Gene Set Variation Analysis (GSVA) was used to probe U-BIOPRED and ADEPT sputum transcriptomics to determine enrichment scores (ES) for each signature according to asthma severity, sputum granulocyte status and previously defined molecular phenotypes. RESULTS: IL-33-activated gene signatures were cell-specific with little gene overlap. Individual signatures, however, were associated with similar signalling pathways (TNF, NF-κB, IL-17 and JAK/STAT signalling) and immune cell differentiation pathways (Th17, Th1 and Th2 differentiation). ES for IL-33-activated gene signatures were significantly enriched in asthmatic sputum, particularly in patients with neutrophilic and mixed granulocytic phenotypes. IL-33 mRNA expression was not elevated in asthma whereas the expression of mRNA for IL1RL1, the IL-33 receptor, was up-regulated in the sputum of severe eosinophilic asthma. The mRNA expression for IL1RAP, the IL1RL1 co-receptor, was greatest in severe neutrophilic and mixed granulocytic asthma. CONCLUSIONS: IL-33-activated gene signatures are elevated in neutrophilic and mixed granulocytic asthma corresponding with IL1RAP co-receptor expression. This suggests incorporating T2-low asthma in anti-IL-33 trials.


Assuntos
Asma , Imunidade Inata , Proteína Acessória do Receptor de Interleucina-1 , Humanos , Asma/diagnóstico , Asma/genética , Células Endoteliais/metabolismo , Proteína Acessória do Receptor de Interleucina-1/metabolismo , Linfócitos/metabolismo , RNA Mensageiro/metabolismo , Escarro , Células Th2
14.
J Contemp Brachytherapy ; 14(5): 423-428, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36478705

RESUMO

Purpose: Prostate brachytherapy is routinely performed with trans-rectal ultrasound (TRUS)- or computed tomography (CT)-based planning that cannot delineate dominant intra-prostatic lesions (DILs). In contrast, magnetic resonance imaging (MRI)-based planning allows for more accurate DIL delineation and dose escalation. This study assessed the maximum achievable dose escalation to DILs. Material and methods: We retrospectively identified 24 patients treated with high-dose-rate (HDR) prostate brachytherapy boost (15 Gy in 1 fraction). All patients had a pre-treatment prostate MRI with 1-3 DILs. MRIs were used to delineate DILs and were co-registered to TRUS intra-procedure. Treatment plans were experimentally re-optimized to escalate DIL dose. Dosimetric indices from the original and re-optimized plans were compared using two-tailed paired t-test. Re-optimized plans were deemed acceptable if they achieved all of the following criteria: prostate D90 > 100%, prostate V100 > 90%, urethra D10 < 118%, rectum V80 < 0.5 cc, bladder D1cc < 75%, or if they did not exceed organs at risk (OARs) doses of the original plan. Results: The mean DIL D90 was significantly increased from 134% of the prescription dose on the original plans to 154% on the re-optimized plans. The mean urethra D10 and mean bladder D1cc were significantly reduced from 123% to 117% and from 72% to 65%, respectively. Prostate D90 was reduced from 106% to 102%, and prostate V100 was reduced from 93% to 91%. Conclusions: We re-optimized HDR brachytherapy plans to escalate DILs dose to a mean D90 of > 150% while maintaining favorable prostate coverage and OARs doses. We propose DIL D90 dose of > 150% (22.5 Gy) as an achievable goal.

15.
J Org Chem ; 87(15): 9764-9768, 2022 08 05.
Artigo em Inglês | MEDLINE | ID: mdl-35802868

RESUMO

The synthesis of perfluoroalkyl-substituted (hetero)arenes by benzannulation strategies is complementary to ring functionalization approaches as it obviates the need for pre-existing functionality and innate regiocontrol. We report a mild and regiospecific boron-directed benzannulation method as a vehicle for accessing a range of perfluoroalkyl-substituted (hetero)aromatic building blocks that can be readily elaborated through established C-B bond functionalization processes.


Assuntos
Fluorocarbonos , Reação de Cicloadição
16.
N Engl J Med ; 385(18): 1669-1679, 2021 10 28.
Artigo em Inglês | MEDLINE | ID: mdl-34706172

RESUMO

BACKGROUND: Interleukin-23 has been implicated in airway inflammation that is mediated by type 2 and type 17 cytokines. Whether targeting interleukin-23 in the treatment of asthma improves disease control and reduces airway inflammation is unclear. METHODS: We conducted a phase 2a, multicenter, randomized, double-blind, placebo-controlled, 24-week, parallel-group trial to assess the efficacy and safety of risankizumab, an anti-interleukin-23p19 monoclonal antibody, in adults with severe asthma. Patients were assigned to receive 90 mg of risankizumab or placebo, administered subcutaneously once every 4 weeks. The primary end point was the time to the first asthma worsening. Asthma worsening was defined as deterioration from baseline on 2 or more consecutive days; deterioration was considered to be a decrease of at least 30% in the morning peak expiratory flow or an increase from baseline of at least 50% in the number of puffs of rescue medication in a 24-hour period (equating to at least four additional puffs), a severe asthma exacerbation, or an increase of 0.75 or more points on the 5-item Asthma Control Questionnaire (ACQ-5; scores range from 0 to 6, with higher scores indicating less control). Secondary end points were the annualized rate of asthma worsening, the annualized rate of severe exacerbations, the ACQ-5 score, and the forced expiratory volume in 1 second. Exploratory end points were assessed with the use of sputum cytologic analysis and gene expression analysis, and safety was assessed. RESULTS: A total of 105 patients received risankizumab and 109 received placebo. The clinical characteristics of the patients were similar in the two groups. The time to the first asthma worsening was shorter with risankizumab than with placebo (median, 40 days vs. 86 days; hazard ratio, 1.46; 95% confidence interval [CI], 1.05 to 2.04; P = 0.03). The rate ratio for annualized asthma worsening with risankizumab as compared with placebo was 1.49 (95% CI, 1.12 to 1.99), and the rate ratio for severe exacerbations was 1.13 (95% CI, 0.75 to 1.70). Sputum transcriptomic pathway analysis showed that genes involved in the activation of natural killer cells and cytotoxic T cells and the activation of the type 1 helper T and type 17 helper T transcription factors were down-regulated by risankizumab. No safety concerns were associated with risankizumab therapy. CONCLUSIONS: Risankizumab treatment was not beneficial in severe asthma. The time to the first asthma worsening was shorter and the annualized rate of asthma worsening was higher with risankizumab than with placebo. (Funded by AbbVie and Boehringer Ingelheim; ClinicalTrials.gov number, NCT02443298.).


Assuntos
Antiasmáticos/uso terapêutico , Anticorpos Monoclonais/uso terapêutico , Asma/tratamento farmacológico , Subunidade p19 da Interleucina-23/antagonistas & inibidores , Adulto , Idoso , Antiasmáticos/efeitos adversos , Anticorpos Monoclonais/efeitos adversos , Progressão da Doença , Método Duplo-Cego , Feminino , Volume Expiratório Forçado/efeitos dos fármacos , Glucocorticoides/uso terapêutico , Humanos , Masculino , Pessoa de Meia-Idade , Placebos , Falha de Tratamento
17.
Am J Respir Crit Care Med ; 204(11): 1259-1273, 2021 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-34469272

RESUMO

Rationale: Type 2 innate lymphoid cells (ILC2s) are significant sources of type 2 cytokines, which are implicated in the pathogenesis of asthma and asthma exacerbations. The role of ILC2s in virus-induced asthma exacerbations is not well characterized. Objectives: To characterize pulmonary ILC responses following experimental rhinovirus challenge in patients with moderate asthma and healthy subjects. Methods: Patients with moderate asthma and healthy subjects were inoculated with rhinovirus-16 and underwent bronchoscopy at baseline and at Day 3, and Day 8 after inoculation. Pulmonary ILC1s and ILC2s were quantified in bronchoalveolar lavage using flow cytometry. The ratio of bronchoalveolar lavage ILC2:ILC1 was assessed to determine their relative contributions to the clinical and immune response to rhinovirus challenge. Measurements and Main Results: At baseline, ILC2s were significantly higher in patients with asthma than in healthy subjects. At Day 8, ILC2s significantly increased from baseline in both groups, which was significantly higher in patients with asthma than in healthy subjects (all comparisons P < 0.05). In healthy subjects, ILC1s increased from baseline at Day 3 (P = 0.001), while in patients with asthma, ILC1s increased from baseline at Day 8 (P = 0.042). Patients with asthma had significantly higher ILC2:ILC1 ratios at baseline (P = 0.024) and Day 8 (P = 0.005). Increased ILC2:ILC1 ratio in patients with asthma correlated with clinical exacerbation severity and type 2 cytokines in nasal mucosal lining fluid. Conclusions: An ILC2-predominant inflammatory profile in patients with asthma was associated with increased severity and duration of rhinovirus infection compared with healthy subjects, supporting the potential role of ILC2s in the pathogenesis of virus-induced asthma exacerbations.


Assuntos
Asma/etiologia , Asma/imunologia , Asma/virologia , Progressão da Doença , Imunidade Inata , Infecções por Picornaviridae/complicações , Fatores de Virulência/imunologia , Adolescente , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
18.
Farm. hosp ; 45(4): 204-209, julio-agosto 2021.
Artigo em Espanhol | IBECS | ID: ibc-218705

RESUMO

Desde hace décadas se conoce que el uso de los medicamentos inyectables en los hospitales europeos se encuentra asociado a numerosos errores de medicación, algunos de los cuales provocan daños graves y muertes prevenibles. Se han publicado investigaciones e informes nacionales yeuropeos sobre la mejora de la seguridad del paciente que recomiendanuna mayor utilización de las unidades de preparación aséptica de los servicios de farmacia y la provisión de los medicamentos inyectables listos parasu administración, recomendaciones que apenas se han implementado.En Inglaterra, la experiencia de tratar a los pacientes con infecciónpor COVID-19 ha puesto de manifiesto otros beneficios que conlleva laampliación de las unidades de preparación aséptica de los servicios defarmacia. Estos beneficios incluyen ahorrar tiempo de enfermería, disponerde sistemas con mayor resiliencia y capacidad, reducir la variabilidad enla práctica, mejorar la satisfacción del personal clínico y del paciente, yfacilitar la administración de más medicamentos inyectables a los pacientesen sus domicilios. También se ha reconocido que se precisan actuacionesdirigidas a estandarizar las directrices y procedimientos de utilización delos medicamentos inyectables e implementar el uso de dispositivos de infusión inteligentes con software de reducción de errores de dosis, con el finde minimizar los errores en la administración de estos medicamentos. Los farmacéuticos de hospital tienen un papel clave en el desarrollo de estasactividades para que los servicios que prestan las farmacias hospitalarias europeas estén más en consonancia con los que se proporcionan en Norteamérica. (AU)


It has been known, for decades, that the use of injectable medicines inEuropean hospitals has been associated with frequent medication errors,some of which cause preventable severe harms and deaths. There havebeen national and European inquiries and reports concerning improvingpatient safety by recommending greater use of pharmacy aseptic preparation services and provision of ready-to administer injectables, which havenot been widely implemented.In England experience of treating patients with COVID-19 infectionshas brought into focus other benefits of significantly extending pharmacyaseptic preparation services. These benefits include saving nursing time,having systems in place which have resilience and capacity, reducingvariation in practice, improving clinical staff and patient experience, andenabling more injectable medicines to be administered to patients athome. It has also been recognised that more action is required to standardise policies and procedures for injectable medicines and implement theuse of smart infusion devices with dose error reduction software, to helpminimise drug administration errors.Hospital pharmacists have a key role in developing these servicesto bring European hospitals more in line with those provided by hospitalpharmacies in North America. (AU)


Assuntos
Humanos , Coronavírus Relacionado à Síndrome Respiratória Aguda Grave , Preparações Farmacêuticas/administração & dosagem , Hospitais , Bombas de Infusão , Injeções , Inglaterra , Erros de Medicação/prevenção & controle
19.
Farm Hosp ; 45(4): 204-209, 2021 05 13.
Artigo em Inglês | MEDLINE | ID: mdl-34218767

RESUMO

It has been known, for decades, that the use of injectable medicines in European hospitals has been associated with frequent medication errors, some of which cause preventable severe harms and deaths. There  have been national and European inquiries and reports concerning  improving patient safety by recommending greater use of pharmacy  aseptic preparation services and provision of ready-to administer  injectables, which have not been widely implemented.In England experience of treating patients with COVID-19 infections has  brought into focus other benefits of significantly extending pharmacy aseptic preparation services. These benefits include saving  nursing time, having systems in place which have resilience and capacity,  reducing variation in practice, improving clinical staff and patient  experience, and enabling more injectable medicines to be administered to  patients at home. It has also been recognised that more action is required  to standardise policies and procedures for injectable medicines and  mplement the use of smart infusion devices with dose error reduction  software, to help minimise drug administration errors.Hospital pharmacists have a key role in developing these services to bring  European hospitals more in line with those provided by hospital pharmacies in North America.


Desde hace décadas se conoce que el uso de los medicamentos  nyectables en los hospitales europeos se encuentra asociado a numerosos  errores de medicación, algunos de los cuales provocan daños graves y  muertes prevenibles. Se han publicado investigaciones e informes  nacionales y europeos sobre la mejora de la seguridad del paciente que  recomiendan una mayor utilización de las unidades de preparación  aséptica de los servicios de farmacia y la provisión de los medicamentos  inyectables listos para su administración, recomendaciones que apenas se  han implementado.En Inglaterra, la experiencia de tratar a los pacientes con infección por  COVID-19 ha puesto de manifiesto otros beneficios que conlleva la ampliación de las unidades de preparación aséptica de los servicios de farmacia. Estos beneficios incluyen ahorrar tiempo de enfermería,  disponer de sistemas con mayor resiliencia y capacidad, reducir la  variabilidad en la práctica, mejorar la satisfacción del personal clínico y del paciente, y facilitar la administración de más medicamentos inyectables a  los pacientes en sus domicilios. También se ha reconocido que se precisan  actuaciones dirigidas a estandarizar las directrices y procedimientos de  utilización de los medicamentos inyectables e implementar el uso de  dispositivos de infusión inteligentes con software de reducción de errores  de dosis, con el fin de minimizar los errores en la administración de estos  medicamentos. Los farmacéuticos de hospital tienen un papel clave en el desarrollo de  stas actividades para que los servicios que prestan las farmacias  hospitalarias europeas estén más en consonancia con los que se  proporcionan en Norteamérica.


Assuntos
Composição de Medicamentos/normas , Hospitais , Serviço de Farmácia Hospitalar/normas , COVID-19 , Inglaterra , Europa (Continente) , Serviços de Assistência Domiciliar , Humanos , Bombas de Infusão , Injeções , Erros de Medicação/prevenção & controle , Segurança do Paciente , Preparações Farmacêuticas/administração & dosagem , Serviço de Farmácia Hospitalar/organização & administração
20.
J Affect Disord ; 294: 521-526, 2021 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-34330048

RESUMO

BACKGROUND: Lithium is one of the most effective medications for bipolar disorder episode prevention, but its mechanism of action is still largely unknown. The hippocampus is a subcortical cerebral structure involved in the formation of emotional responses, cognition and various primitive functions, altered during affective episodes. Deviations in the anatomy or physiology of the hippocampus would partially explain the symptomatology of bipolar subjects, and restoration may reflect treatment response. METHODS: In this mini review, we summarize the studies which have investigated the effect of lithium intake on the volume of hippocampus, measured using magnetic resonance imaging (MRI). We performed a bibliographic search on PubMed, using the terms terms "hippocampus", "lithium", "bipolar disorder", "volume" and "MRI". Only original studies were considered. RESULTS: Thirteen studies met the inclusion criteria. Nine studies demonstrated increased total hippocampal volume or hippocampal subfield volumes in BD patients on lithium treatment (Li BD) compared to those not taking lithium (non-Li BD), while four failed to show significant differences between groups. When healthy controls were compared to either the Li subjects or the non-Li ones, the findings were more heterogeneous. LIMITATIONS: Heterogeneity in the methodology and definition of groups limits the comparison of study results. CONCLUSIONS: Lithium may be associated with increased hippocampal volume in BD, potentially due to its putative neurotrophic action, but further research is needed better define the morphological alterations of hippocampus in BD and the longitudinal effects of lithium in the short and long-term.


Assuntos
Transtorno Bipolar , Antimaníacos/uso terapêutico , Transtorno Bipolar/diagnóstico por imagem , Transtorno Bipolar/tratamento farmacológico , Hipocampo/diagnóstico por imagem , Humanos , Lítio/uso terapêutico , Compostos de Lítio/uso terapêutico , Imageamento por Ressonância Magnética
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