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1.
Int J Clin Pharm ; 2024 Feb 17.
Artigo em Inglês | MEDLINE | ID: mdl-38367103

RESUMO

BACKGROUND: Limited data are available on characteristics associated with antipsychotic use in multimorbid older adults. AIM: Primary: to identify patient characteristics associated with antipsychotic prescribing in a multimorbid population of older inpatients with polypharmacy. Secondary: (1) to observe if antipsychotics use during an index hospitalisation was associated with a drug related admission (DRA) within one year, and (2) to describe these cases of antipsychotic-related readmissions. METHOD: This was a secondary analysis of the OPERAM randomized controlled trial. Multivariate analysis assessed the association between characteristics and comorbidities with antipsychotic use. An expert team assessed DRA occurring during the one-year follow-up. RESULTS: Antipsychotics were prescribed to 5.5% (n = 110) patients upon admission while 7.7% (n = 154) inpatients received antipsychotics at any time (i.e. upon admission, during hospitalisation, and/or at discharge). The most frequently prescribed antipsychotics were quetiapine (n = 152), haloperidol (n = 48) and risperidone (n = 22). Antipsychotic prescribing was associated with dementia (OR = 3.7 95%CI[2.2;6.2]), psychosis (OR = 26.2 [7.4;92.8]), delirium (OR = 6.4 [3.8;10.8]), mood disorders (OR = 2.6 [1.6;4.1]),  ≥ 15 drugs a day (OR = 1.7 [1.1;2.6]), functional dependency (Activities of Daily Living score < 50/100) (OR = 3.9 [2.5;6.1]) and < 2 units of alcohol per week (OR = 2.2 [1.4;3.6]). DRA occurred in 458 patients (22.8%) within one year. Antipsychotic prescribing at any time was not associated with DRA (OR = 1.0 [0.3;3.9]) however contributed to 8 DRAs, including 3 falls. CONCLUSION: In this European multimorbid polymedicated older inpatients, antipsychotics were infrequently prescribed, most often at low dosage. Besides neuro-psychiatric symptoms, risk factors for inhospital antipsychotic prescribing were lower functional status and polymedication.

2.
EBioMedicine ; 93: 104667, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37336058

RESUMO

BACKGROUND: Severe COVID-19 is associated with innate immunopathology, and CD14, a proximal activator of innate immunity, has been suggested as a potential therapeutic target. METHODS: We conducted the COVID-19 anti-CD14 Treatment Trial (CaTT), a Phase II randomized, double-blind, placebo-controlled trial at 5 US-sites between April 12, 2021 and November 30, 2021 (NCT04391309). Hospitalized adults with COVID-19 requiring supplemental oxygen (<30 LPM) were randomized 1:1 to receive 4 daily doses of intravenous IC14, an anti-CD14 monoclonal antibody, or placebo. All participants received remdesivir. The primary outcome was time-to-resolution of illness, defined as improvement on the 8-point NIH-Ordinal COVID-19 Scale to category ≤3. Secondary endpoints were safety and exploratory endpoints were pro-inflammatory and antiviral mediators in serum on days 0-5 & 7. The trial was stopped after 40 patients were randomized and treated due to slow enrollment. FINDINGS: 40 participants were randomized and treated with IC14 (n = 20) or placebo (n = 20). The median time-to-recovery was 6 days (95% CI, 5-11) in the IC14 group vs. 5 days (95% CI, 4-10) in the Placebo group (recovery rate ratio: 0.77 (95% CI, 0.40, 1.48) (log-rank p = 0.435). The number of adverse events was similar in each group, and no IC14-attributable secondary infections occurred. In repeated-measures mixed-effects analyses, IC14 treatment increased serum sCD14 concentrations, an expected pharmacodynamic effect. Pre-planned, exploratory analyses suggested that IC14 treatment decreased the trajectories of circulating MIP-1ß and TNF-α. INTERPRETATION: IC14 treatment did not improve time-to-resolution of illness in hypoxemic patients with COVID-19 in this small trial. Results of exploratory analyses suggested IC14 had biologic effects that warrant future clinical investigation. FUNDING: National Institute of Allergy and Infectious Diseases.


Assuntos
COVID-19 , Adulto , Humanos , SARS-CoV-2 , Administração Intravenosa , Método Duplo-Cego , Resultado do Tratamento
3.
Crit Care Explor ; 5(5): e0918, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37206374

RESUMO

The Surviving Sepsis Campaign recommends standard operating procedures for patients with sepsis. Real-world evidence about sepsis order set implementation is limited. OBJECTIVES: To estimate the effect of sepsis order set usage on hospital mortality. DESIGN: Retrospective cohort study. SETTING AND PARTICIPANTS: Fifty-four acute care hospitals in the United States from December 1, 2020 to November 30, 2022 involving 104,662 patients hospitalized for sepsis. MAIN OUTCOMES AND MEASURES: Hospital mortality. RESULTS: The sepsis order set was used in 58,091 (55.5%) patients with sepsis. Initial mean sequential organ failure assessment score was 0.3 lower in patients for whom the order set was used than in those for whom it was not used (2.9 sd [2.8] vs 3.2 [3.1], p < 0.01). In bivariate analysis, hospital mortality was 6.3% lower in patients for whom the sepsis order set was used (9.7% vs 16.0%, p < 0.01), median time from emergency department triage to antibiotics was 54 minutes less (125 interquartile range [IQR, 68-221] vs 179 [98-379], p < 0.01), and median total time hypotensive was 2.1 hours less (5.5 IQR [2.0-15.0] vs 7.6 [2.5-21.8], p < 0.01) and septic shock was 3.2% less common (22.0% vs 25.4%, p < 0.01). Order set use was associated with 1.1 fewer median days of hospitalization (4.9 [2.8-9.0] vs 6.0 [3.2-12.1], p < 0.01), and 6.6% more patients discharged to home (61.4% vs 54.8%, p < 0.01). In the multivariable model, sepsis order set use was independently associated with lower hospital mortality (odds ratio 0.70; 95% CI, 0.66-0.73). CONCLUSIONS AND RELEVANCE: In a cohort of patients hospitalized with sepsis, order set use was independently associated with lower hospital mortality. Order sets can impact large-scale quality improvement efforts.

4.
Explor Res Clin Soc Pharm ; 9: 100228, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36793798

RESUMO

Introduction: Patient safety culture, the way in which members of a healthcare organisation think about and prioritise safety, has been linked to positive patient outcomes. The aim of this study was to use the Safety Attitudes Questionnaire (SAQ) to measure the safety culture in a variety of healthcare settings located in the province of Munster of Ireland. Methods: The SAQ was applied in six healthcare settings in the Munster province of Ireland between December 2017 and November 2019. The attitudes of healthcare staff towards six domains of safety culture were assessed over 32 Likert-scaled items. The mean, median, interquartile range and percent positive scores for each domain were calculated for the study population, and subgroup analyses were carried out between study sites and professions. Results for each setting were compared to international benchmarking data. Chi-Squared tests were used to determine whether study site or profession were related to domain scores. Reliability analysis was carried out using Cronbach's alpha. Results: Study participants (n = 1749) comprising doctors, pharmacists, nurses, and healthcare assistants, were found to have positive attitudes towards patient safety culture but scored poorly in the domains Working Conditions and Perceptions of Management. Perceptions of safety culture were more positive in smaller healthcare settings, and amongst nurses and HCAs. The survey had acceptable internal consistency. Conclusions: In this study investigating the safety culture of healthcare organisations in Ireland, study participants had generally positive attitudes towards the safety culture in their organisation, however working conditions, perceptions of management, and medication incident reporting were identified as key areas for improvement.

5.
J Interprof Care ; 37(2): 203-213, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-35109753

RESUMO

Communication plays a key role in the provision of safe patient care, and miscommunication in healthcare can lead to avoidable patient harm or mortality. Interprofessional communication (IPCom) can be challenging due to differences in training, education and roles between healthcare professions. The aim of this systematic review was to synthesize the qualitative evidence regarding healthcare providers' perceptions of interprofessional communication in the hospital setting. Four databases (PubMed, CINAHL, Web of Science, and Embase) were searched for studies that met the inclusion criteria. Eighteen studies were identified as suitable for inclusion in the review and were examined using thematic synthesis. Thematic synthesis led to the development of five descriptive themes: 1) 'Hierarchy", 2) "Interprofessional Ethos," 3) "Healthcare Environment," 4) "Personal Factors" and 5) "Methods of Communication," and two overarching analytical themes: "Barriers to Communication" and "Facilitators to Communication." Personal factors, such as strong interprofessional relationships, were found to be important facilitators to IPCom, while organizational factors, such as challenging and hierarchical working environments, were found to pose barriers to IPCom.


Assuntos
Atenção à Saúde , Relações Interprofissionais , Humanos , Pessoal de Saúde , Hospitais , Comunicação , Pesquisa Qualitativa
6.
Eur Geriatr Med ; 13(3): 541-552, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35291025

RESUMO

OBJECTIVE: To evaluate the agreement of hospital physicians and older patients with individualised STOPP/START-based medication optimisation recommendations from a pharmacotherapy team. METHODS: This study was embedded within a large European, multicentre, cluster randomised controlled trial examining the effect of a structured medication review on drug-related hospital admissions in multimorbid (≥ 3 chronic conditions) older people (≥ 70 years) with polypharmacy (≥ 5 chronic medications), called OPERAM. Data from the Dutch intervention arm of this trial were used for this study. Medication review was performed jointly by a physician and pharmacist (i.e. pharmacotherapy team) supported by a Clinical Decision Support System with integrated STOPP/START criteria. Individualised STOPP/START-based medication optimisation recommendations were discussed with patients and attending hospital physicians. RESULTS: 139 patients were included, mean (SD) age 78.3 (5.1) years, 47% male and median (IQR) number of medications at admission 11 (9-14). In total, 371 recommendations were discussed with patients and physicians, overall agreement was 61.6% for STOPP and 60.7% for START recommendations. Highest agreement was found for initiation of osteoporosis agents and discontinuation of proton pump inhibitors (both 74%). Factors associated with higher agreement in multivariate analysis were: female gender (+ 17.1% [3.7; 30.4]), ≥ 1 falls in the past year (+ 15.0% [1.5; 28.5]) and renal impairment i.e. eGFR 30-50 ml/min/1.73 m2; (+ 18.0% [2.0; 34.0]). The main reason for disagreement (40%) was patients' reluctance to discontinue or initiate medication. CONCLUSION: Better patient and physician education regarding the benefit/risk balance of pharmacotherapy, in addition to more precise and up-to-date medical records to avoid irrelevant recommendations, will likely result in higher adherence with future pharmacotherapy optimisation recommendations. CLINICAL TRIAL REGISTRATION: Trial Registration Number NCT02986425.


Assuntos
Médicos , Lista de Medicamentos Potencialmente Inapropriados , Idoso , Feminino , Hospitais , Humanos , Prescrição Inadequada , Masculino , Polimedicação
7.
J Palliat Care ; : 8258597221078391, 2022 Feb 07.
Artigo em Inglês | MEDLINE | ID: mdl-35129002

RESUMO

Background and Objectives: Immune checkpoint inhibitors (ICIs) have less toxicity than standard chemotherapy and are now standard of care for many patients with advanced cancer. A manageable side effect profile and potential for durable responses may lead to aggressive care of the palliative patient. We sought to evaluate palliative care input and ICI use at the end of life at two Irish cancer centres. Methods: We identified deceased patients who received at least one dose of an ICI between first of January 2013 to 31st of December 2018. A retrospective electronic chart review was performed. Results: The electronic records of 102 patients were analysed. Fifty eight percent were male and the median age of diagnosis of advanced disease was 60 years (range 17-78). Median time from last dose of ICI to death was 57 days (range 8-574) and 20% of patients died within 30 days of last dose of ICI. Most patients, 92%, were referred to palliative care. The median time from palliative care referral to death was 64 days (range 1- 1010). In the last 30 days of life, 39% of patients attended the emergency department (ED) and 46% had at least one hospital admission. Late palliative care referrals, ≤3 months before death, were associated with hospitalisations in the last month of life (64% vs. 36%, P = .02). Timing of palliative care referral did not affect ICI prescribing at the end of life (P = 0.38). ICI use in the last 30 days of life was not associated with increased ED presentations or hospitalisations at the end of life. Patients who received ICI in the last month had a higher likelihood of in-hospital death (43% vs. 16%, P = 0.02). Conclusions: ICI within 30 days of death was associated with dying in hospital but did not lead to more hospitalisations and emergency department presentations. Early palliative care did not affect ICI use but reduced hospitalisations at the end of life.

8.
JMIR Med Inform ; 9(7): e29986, 2021 Jul 08.
Artigo em Inglês | MEDLINE | ID: mdl-34086596

RESUMO

BACKGROUND: Sepsis is a life-threatening condition that can rapidly lead to organ damage and death. Existing risk scores predict outcomes for patients who have already become acutely ill. OBJECTIVE: We aimed to develop a model for identifying patients at risk of getting sepsis within 2 years in order to support the reduction of sepsis morbidity and mortality. METHODS: Machine learning was applied to 2,683,049 electronic health records (EHRs) with over 64 million encounters across five states to develop models for predicting a patient's risk of getting sepsis within 2 years. Features were selected to be easily obtainable from a patient's chart in real time during ambulatory encounters. RESULTS: The models showed consistent prediction scores, with the highest area under the receiver operating characteristic curve of 0.82 and a positive likelihood ratio of 2.9 achieved with gradient boosting on all features combined. Predictive features included age, sex, ethnicity, average ambulatory heart rate, standard deviation of BMI, and the number of prior medical conditions and procedures. The findings identified both known and potential new risk factors for long-term sepsis. Model variations also illustrated trade-offs between incrementally higher accuracy, implementability, and interpretability. CONCLUSIONS: Accurate implementable models were developed to predict the 2-year risk of sepsis, using EHR data that is easy to obtain from ambulatory encounters. These results help advance the understanding of sepsis and provide a foundation for future trials of risk-informed preventive care.

11.
Cell ; 183(6): 1479-1495.e20, 2020 12 10.
Artigo em Inglês | MEDLINE | ID: mdl-33171100

RESUMO

We present an integrated analysis of the clinical measurements, immune cells, and plasma multi-omics of 139 COVID-19 patients representing all levels of disease severity, from serial blood draws collected during the first week of infection following diagnosis. We identify a major shift between mild and moderate disease, at which point elevated inflammatory signaling is accompanied by the loss of specific classes of metabolites and metabolic processes. Within this stressed plasma environment at moderate disease, multiple unusual immune cell phenotypes emerge and amplify with increasing disease severity. We condensed over 120,000 immune features into a single axis to capture how different immune cell classes coordinate in response to SARS-CoV-2. This immune-response axis independently aligns with the major plasma composition changes, with clinical metrics of blood clotting, and with the sharp transition between mild and moderate disease. This study suggests that moderate disease may provide the most effective setting for therapeutic intervention.


Assuntos
COVID-19 , Genômica , RNA-Seq , SARS-CoV-2 , Análise de Célula Única , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , COVID-19/sangue , COVID-19/imunologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , SARS-CoV-2/imunologia , SARS-CoV-2/metabolismo , Índice de Gravidade de Doença
12.
bioRxiv ; 2020 Jul 31.
Artigo em Inglês | MEDLINE | ID: mdl-32766585

RESUMO

Host immune responses play central roles in controlling SARS-CoV2 infection, yet remain incompletely characterized and understood. Here, we present a comprehensive immune response map spanning 454 proteins and 847 metabolites in plasma integrated with single-cell multi-omic assays of PBMCs in which whole transcriptome, 192 surface proteins, and T and B cell receptor sequence were co-analyzed within the context of clinical measures from 50 COVID19 patient samples. Our study reveals novel cellular subpopulations, such as proliferative exhausted CD8 + and CD4 + T cells, and cytotoxic CD4 + T cells, that may be features of severe COVID-19 infection. We condensed over 1 million immune features into a single immune response axis that independently aligns with many clinical features and is also strongly associated with disease severity. Our study represents an important resource towards understanding the heterogeneous immune responses of COVID-19 patients and may provide key information for informing therapeutic development.

13.
Res Social Adm Pharm ; 16(8): 1017-1025, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31866121

RESUMO

BACKGROUND: In 2017, the World Health Organisation pledged to halve medication errors by 2022. In order to learn from medication errors and prevent their recurrence, it is essential that medication errors are reported when they occur. OBJECTIVES: The aim of this systematic review was to identify studies in which interventions were carried out in hospitals to improve medication error reporting, to summarise the findings of these studies, and to make recommendations for future investigations. METHODS: A comprehensive search of five electronic databases (PubMed, Medline (OVID), Embase (OVID), Web of Science, and CINAHL) was conducted from inception up to and including December 2018. Studies were included if they described an intervention aiming to increase the reporting of medication errors by healthcare providers in hospitals and excluded if there was no full-text English language version available, or if the reporting rate in the hospital prior to the intervention was not available. Data extracted from included studies were described using narrative synthesis. RESULTS: Of 12,025 identified studies, seventeen were included in this review - fifteen uncontrolled before versus after studies, one survey and one non-equivalent group controlled trial. Five studies carried out a single intervention and twelve studies conducted multifaceted interventions. The most common intervention types were critical incident reporting, implemented in fifteen studies, and audit and feedback, implemented in seven studies. Other intervention types included educational materials, educational meetings, and role expansion and task shifting. As only one study compared a control and intervention group, the effectiveness of the different intervention types could not be evaluated. CONCLUSION: This is the first review to address the evidence on medication error reporting in hospitals on a global scale. The review has identified interventions to improve medication error reporting that were implemented without evidence of their effectiveness. Due to the essential role played by incident reporting in learning from and preventing the recurrence of medication errors more research needs to be done in this area.


Assuntos
Hospitais , Neoplasias , Humanos , Erros de Medicação
14.
J Dent ; 83: 95-99, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30862556

RESUMO

OBJECTIVES: to compare the survival of ART and a conventional restorative technique (CT) for restoring carious lesions in older adults after 5 years. METHODS: In this parallel randomised controlled clinical trial, 219 independently-living adults were recruited from a dental hospital/community and a geriatric day hospital. Ninety-nine patients who met the inclusion criteria and presented with carious lesions were randomly allocated to receive either ART or conventional restorations (anaesthesia, rotary instruments and resin-modified glass ionomer). The status of restorations was assessed 6 months, 1, 2 and 5 years after restoration placement. Estimates of cumulative survival were calculated for each interval between assessments and a Cox Proportional Hazards (PH) model was fitted to the interval-censored survival time. RESULTS: Three hundred restorations (ART n=142; CT n=158) were placed on 99 patients, 46 males and 53 females, with a mean age of 73.2, SD: 6.8 (65-90 yrs). After 5 years, ART and CT presented cumulative probability of survival of 85% and 79% (p=0.8095), respectively. CONCLUSIONS: ART presents survival rates comparable to a conventional technique, when treating older adults after 5 years. The ART approach could be a useful tool to provide dental care for older adults particularly in the nonclinical setting. (Trial Registration number: ISRCTN 76299321). CLINICAL RELEVANCE: This study shows that ART presents survival rates comparable to conventional techniques to treat carious lesions in older patients after 5 years. It is well accepted by this age cohort, and therefore could be an alternative to treat the elderly, especially those who are homebound or cannot attend the dentist.


Assuntos
Anestesia Dentária , Tratamento Dentário Restaurador sem Trauma , Cárie Dentária , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Falha de Restauração Dentária , Restauração Dentária Permanente , Feminino , Cimentos de Ionômeros de Vidro , Humanos , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Adulto Jovem
15.
Drugs Aging ; 36(4): 299-307, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30741371

RESUMO

Falls are a major public health concern in the older population, and certain medication classes are a significant risk factor for falls. However, knowledge is lacking among both physicians and older people, including caregivers, concerning the role of medication as a risk factor. In the present statement, the European Geriatric Medicine Society (EuGMS) Task and Finish group on fall-risk-increasing drugs (FRIDs), in collaboration with the EuGMS Special Interest group on Pharmacology and the European Union of Medical Specialists (UEMS) Geriatric Medicine Section, outlines its position regarding knowledge dissemination on medication-related falls in older people across Europe. The EuGMS Task and Finish group is developing educational materials to facilitate knowledge dissemination for healthcare professionals and older people. In addition, steps in primary prevention through judicious prescribing, deprescribing of FRIDs (withdrawal and dose reduction), and gaps in current research are outlined in this position paper.


Assuntos
Acidentes por Quedas/prevenção & controle , Analgésicos Opioides/efeitos adversos , Anticonvulsivantes/efeitos adversos , Geriatria/métodos , Psicotrópicos/efeitos adversos , Inibidores de Simportadores de Cloreto de Sódio e Potássio/efeitos adversos , Acidentes por Quedas/estatística & dados numéricos , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Europa (Continente) , União Europeia , Geriatria/normas , Humanos , Polimedicação , Fatores de Risco
16.
Eur Geriatr Med ; 10(2): 275-283, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-34652762

RESUMO

Falls are a major public health concern in the older population, and certain medication classes are a significant risk factor for falls. However, knowledge is lacking among both physicians and older people, including caregivers, concerning the role of medication as a risk factor. In the present statement, the European Geriatric Medicine Society (EuGMS) Task and Finish group on fall-risk-increasing drugs (FRIDs), in collaboration with the EuGMS Special Interest group on Pharmacology and the European Union of Medical Specialists (UEMS) Geriatric Medicine Section, outlines its position regarding knowledge dissemination on medication-related falls in older people across Europe. The EuGMS Task and Finish group is developing educational materials to facilitate knowledge dissemination for healthcare professionals and older people. In addition, steps in primary prevention through judicious prescribing, deprescribing of FRIDs (withdrawal and dose reduction), and gaps in current research are outlined in this position paper.

17.
Age Ageing ; 47(5): 749-753, 2018 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-29688246

RESUMO

Background: the last year of life for many older people is associated with high symptom burden and frequent hospitalizations. Hospital physicians have an opportunity to prioritize essential medications and deprescribe potentially futile medications. Objective: to measure medication consumption during hospitalization in the last year of life and the prevalence of potentially inappropriate medications (PIMs) at hospital discharge. Design: retrospective chart review. Setting: acute hospital. Subjects: ≥65 years, hospitalized in the last year of life. Methods: medication consumption was determined by examining hospital Medication Administration Records. PIMs were defined using STOPPFrail deprescribing criteria. Results: the study included 410 patients. The mean age of participants was 80.8, 49.3% were female, and 63.7% were severely frail. The median number of days spent in hospital in the last year of life was 32 (interquartile range 15-59). During all hospitalizations, the mean number of individual medications consumed was 23.8 (standard deviation 10.1). One-in-six patients consumed 35 or more medications in their last year. Over 80% of patients were prescribed at least one PIM at discharge and 33% had ≥3 PIMs. Lipid-lowering medications, proton pump inhibitors, anti-psychotics and calcium supplements accounted for 59% of all PIMs. Full implementation of STOPPFrail recommendations would have resulted in one-in-four long-term medications being discontinued. Conclusion: high levels of medication consumption in the last year of life not only reflect high symptom burden experienced by patients but also continued prescribing of futile medications. Physicians assisted by the STOPPFrail tool can reduce medication burden for older people approaching end of life.


Assuntos
Desprescrições , Fragilidade/tratamento farmacológico , Prescrição Inadequada/tendências , Futilidade Médica , Lista de Medicamentos Potencialmente Inapropriados/tendências , Padrões de Prática Médica/tendências , Assistência Terminal/tendências , Idoso , Idoso de 80 Anos ou mais , Tomada de Decisão Clínica , Feminino , Idoso Fragilizado , Fragilidade/diagnóstico , Fragilidade/mortalidade , Hospitalização/tendências , Humanos , Masculino , Estudos Retrospectivos , Índice de Gravidade de Doença , Fatores de Tempo
18.
Am J Respir Cell Mol Biol ; 58(1): 117-125, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-28858533

RESUMO

Mitogen-activated protein kinase kinase kinase 1 (MAP3K1) regulates numerous intracellular signaling pathways involved in inflammation and apoptosis. We hypothesized that genetic variation in MAP3K1 might be associated with outcomes in patients with acute respiratory distress syndrome (ARDS), and that these variants would alter MAP3K1-mediated changes in inflammation and transcriptional regulation. To test this hypothesis, we genotyped single-nucleotide polymorphisms covering linkage disequilibrium bins in MAP3K1 in 306 subjects with ARDS from the ARDSNet FACTT (Fluid and Catheter Treatment Trial) study, and tested for associations between MAP3K1 single-nucleotide polymorphisms and ventilator-free days (VFDs) and mortality. We then validated these associations in a separate cohort of 241 patients with ARDS from Harborview Medical Center (Seattle, WA). We found the variant allele of rs832582 (MAP3K1906Val) was significantly associated with decreased VFDs using multivariate linear regression (-6.1 d, false discovery rate = 0.06) in the FACTT cohort. In the Harborview Medical Center cohort, subjects homozygous for MAP3K1906Val also had decreased VFDs (-15.1 d, false discovery rate < 0.01), and increased 28-day mortality (all subjects homozygous for the rare allele died). In whole blood stimulated with various innate immune agonists ex vivo, MAP3K1906Val was associated with increased IL-1ß, IL-6, IL-8, monocyte chemoattractant protein 1, and TNF-α production. Transcriptome analysis of whole blood stimulated with Toll-like receptor 4 agonist ex vivo demonstrated enrichment of inflammatory gene sets in subjects homozygous for MAP3K1906Val. Our findings show a robust association between the variant allele of rs832582 (MAP3K1906Val) and decreased VFDs in patients with ARDS and suggest that this variant may predispose individuals to a greater inflammatory response.


Assuntos
Alelos , MAP Quinase Quinase Quinase 1/genética , Mutação de Sentido Incorreto , Polimorfismo de Nucleotídeo Único , Síndrome do Desconforto Respiratório/genética , Adolescente , Adulto , Idoso , Substituição de Aminoácidos , Citocinas/genética , Citocinas/imunologia , Citocinas/metabolismo , Feminino , Humanos , MAP Quinase Quinase Quinase 1/imunologia , MAP Quinase Quinase Quinase 1/metabolismo , Masculino , Pessoa de Meia-Idade , Síndrome do Desconforto Respiratório/enzimologia , Síndrome do Desconforto Respiratório/imunologia , Síndrome do Desconforto Respiratório/mortalidade
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