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1.
Acta Paediatr ; 112(8): 1725-1733, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37166454

RESUMO

AIM: Successful mother-child-bonding is a fundamental step for a healthy development of the child. Different factors like postpartum depression can hinder the bonding process. This study aimed to investigate how intensive care treatment due to congenital heart diseases of the infant alters bonding and how mothers cope with the situation. METHODS: Validated questionnaires were used to analyse postpartum depression, mother-child bonding, stress factors and coping strategies for mothers at a paediatric intensive care unit (PICU; n = 38) and a group of mothers without known psychiatric disorders attending a babywell visit with their child (n = 91). Descriptive statistics and interaction models were calculated. RESULTS: The PICU group showed on average higher total scores on the postpartum bonding questionnaire indicating mother-child bonding impairment and a higher proportion of mothers with depression was observed (76% vs 11%). The model showed a significant interaction between effective coping strategies and mother infant bonding (p = 0.04). Ineffective coping had no effect on bonding or depression in the PICU group. CONCLUSION: Mothers of children treated at an ICU due a congenital heart disease are at increased risk for the development of depression and difficulties in different aspects of postpartum bonding. Our results show that coping mechanisms might significantly influence postpartum bonding. Implementation of tailored support is needed to optimise maternal outcomes.


Assuntos
Depressão Pós-Parto , Cardiopatias Congênitas , Lactente , Feminino , Humanos , Depressão Pós-Parto/epidemiologia , Depressão Pós-Parto/psicologia , Saúde Mental , Relações Mãe-Filho/psicologia , Mães/psicologia , Período Pós-Parto , Cuidados Críticos , Apego ao Objeto
2.
Res Rep Health Eff Inst ; (214): 1-41, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38286761

RESUMO

INTRODUCTION: Early ecological studies have suggested a link between air pollution and Coronavirus Diseases 2019 (COVID-19); however, the evidence from individual-level prospective cohort studies is still sparse. Here, we have examined, in a general population, whether long-term exposure to air pollution is associated with the risk of contracting severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and developing severe COVID-19, resulting in hospitalization or death and who is most susceptible. We also examined whether long-term exposure to air pollution is associated with hospitalization or death due to COVID-19 in those who have tested positive for SARS-CoV-2. METHODS: We included all Danish residents 30 years or older who resided in Denmark on March 1, 2020. and followed them in the National COVID-19 Surveillance System until first positive test (incidence), COVID-19 hospitalization, or death until April 26, 2021. We estimated mean levels of nitrogen dioxide (NO2), particulate matter with an aerodynamic diameter <2.5 µm (PM2.5), black carbon (BC), and ozone (O3) at cohort participants' residence in 2019 by the Danish Eulerian Hemispheric Model/Urban Background Model. We used Cox proportional hazard models to estimate the associations of air pollutants with COVID-19 incidence, hospitalization, and mortality adjusting for age, sex, and socioeconomic status (SES) at the individual and area levels. We examined effect modification by age, sex, SES (education, income, wealth, employment), and comorbidities with cardiovascular disease, respiratory disease, acute lower respiratory infections, diabetes, lung cancer, and dementia. We used logistic regression to examine association of air pollutants with COVID-19-related hospitalization or death among SARS-CoV-2 positive patients, adjusting for age, sex, individual- and area-level SES. RESULTS: Of 3,721,810 people, 138,742 were infected, 11,270 hospitalized, and 2,557 died from COVID-19 during 14 months of follow-up. We detected strong positive associations with COVID-19 incidence, with hazard ratio (HR) and 95% confidence interval (CI) of 1.10 (CI: 1.05-1.14) per 0.5-µg/m3 increase in PM2.5 and 1.18 (CI: 1.14-1.23) per 3.6-µg/m3 increase in NO2. For COVID-19 hospitalizations and for COVID-19 deaths, corresponding HRs and 95% CIs were 1.09 (CI: 1.01-1.17) and 1.19 (CI: 1.12-1.27), respectively for PM2.5, and 1.23 (CI: 1.04-1.44) and 1.18 (CI: 1.03-1.34), respectively for NO2. We also found strong positive and statistically significant associations with BC and negative associations with O3. Associations were strongest in those aged 65 years old or older, participants with the lowest SES, and patients with chronic cardiovascular, respiratory, metabolic, lung cancer, and neurodegenerative disease. Among 138,742 individuals who have tested positive for SARS-Cov-2, we detected positive association with COVID-19 hospitalizations (N = 11,270) with odds ratio and 95% CI of 1.04 (CI: 1.01- 1.08) per 0.5-µg/m3 increase in PM2.5 and 1.06 (CI: 1.01-1.12) per 3.6-µg/m3 increase in NO2, but no association with PM with an aerodynamic diameter <10 µm (PM10), BC, or O3, and no association between any of the pollutants and COVID-19 mortality (N = 2,557). CONCLUSIONS: This large nationwide study provides strong new evidence in support of association between long-term exposure to air pollution and COVID-19.


Assuntos
Poluentes Atmosféricos , Poluição do Ar , COVID-19 , Doenças Cardiovasculares , Neoplasias Pulmonares , Doenças Neurodegenerativas , Humanos , Idoso , Dióxido de Nitrogênio/toxicidade , Estudos Prospectivos , Exposição Ambiental/efeitos adversos , Exposição Ambiental/análise , COVID-19/epidemiologia , SARS-CoV-2 , Poluição do Ar/efeitos adversos , Poluição do Ar/análise , Poluentes Atmosféricos/toxicidade , Poluentes Atmosféricos/análise , Material Particulado/efeitos adversos , Material Particulado/análise , Incidência , Dinamarca/epidemiologia
3.
BJOG ; 129(4): 572-579, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34536318

RESUMO

OBJECTIVES: To estimate the association between chronic hypertension and perinatal mortality and to evaluate the extent to which risks are impacted by preterm delivery. DESIGN: Cross-sectional analysis. SETTING: United States, 2015-18. POPULATION: Singleton births (20-44 weeks of gestation). EXPOSURE: Chronic hypertension, defined as elevated blood pressure diagnosed before pregnancy or recognised before 20 weeks of gestation. MAIN OUTCOMES AND MEASURES: We derived the risk of perinatal mortality in relation to chronic hypertension from Poisson models, adjusted for confounders. The impacts of misclassification and unmeasured confounding were assessed. Causal mediation analysis was performed to quantify the impact of preterm delivery on the association. RESULTS: Of the 15 090 678 singleton births, perinatal mortality rates were 22.5 and 8.2 per 1000 births in chronic hypertensive and normotensive pregnancies, respectively (adjusted risk ratio 2.05, 95% CI 2.00-2.10). Corrections for exposure misclassification and unmeasured confounding biases substantially increased the risk estimate. Although causal mediation analysis revealed that most of the association of chronic hypertension on perinatal mortality was mediated through preterm delivery, the perinatal mortality rates were highest at early term, term and late term gestations, suggesting that a planned early term delivery at 37-386/7 weeks may optimally balance risk in these pregnancies. Additionally, 87% (95% CI 84-90%) of perinatal deaths could be eliminated if preterm deliveries, as a result of chronic hypertension, were preventable. CONCLUSIONS: Chronic hypertension is associated with increased risk for perinatal mortality. Planned early term delivery and targeting modifiable risk factors for chronic hypertension may reduce perinatal mortality rates. TWEETABLE ABSTRACT: Maternal chronic hypertension is associated with increased risk for perinatal mortality, largely driven by preterm birth.


Assuntos
Parto Obstétrico/estatística & dados numéricos , Hipertensão/epidemiologia , Morte Perinatal , Complicações Cardiovasculares na Gravidez/epidemiologia , Nascimento Prematuro/epidemiologia , Adolescente , Adulto , Causalidade , Estudos Transversais , Feminino , Idade Gestacional , Humanos , Recém-Nascido , Gravidez , Estudos Retrospectivos , Fatores de Risco , Estados Unidos/epidemiologia , Adulto Jovem
4.
Osteoarthritis Cartilage ; 29(6): 894-904, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33647390

RESUMO

OBJECTIVE: The clinical success of focal metallic resurfacing implants depends largely on the friction between implant and opposing cartilage. Therefore, the present study determines the lubricating ability of the synovial fluid components hyaluronic acid (HA), proteoglycan 4 (PRG4) and a surface-active phospholipid (1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine, POPC), on the articulation between cartilage and a Cobalt Chromium Molybdenum (CoCrMo) implant surface, compared with two cartilage surfaces. METHODS: A ring-on-disk geometry was used to perform repeated friction measurements at physiologically relevant velocities (6 and 60 mm/s) using lubricants with an increasing number of components present. Shear measurements were performed in order to evaluate the viscosity. To ensure that it is clinically relevant to explore the effect of these components, the presence of PRG4 in synovial fluid obtained from primary and revision knee and hip implant surgeries was examined. RESULTS: PRG4 in the presence of HA was found to significantly reduce the coefficient of friction for both cartilage-cartilage and cartilage-CoCrMo interface. This is relevant, as it was also demonstrated that PRG4 is still present at the time of revision surgeries. The addition of POPC had no effect for either configurations. HA increased the viscosity of the lubricating fluid by one order of magnitude, while PRG4 and POPC had no effect. CONCLUSION: The present study demonstrates the importance of selecting the appropriate lubrication solution to evaluate implant materials with biotribology tests. Because PRG4 is a key component for reducing friction between cartilage and an opposing surface, developing coatings which bind PRG4 is recommended for cartilage resurfacing implants.


Assuntos
Cartilagem Articular/fisiologia , Fricção , Prótese de Quadril , Prótese do Joelho , Proteoglicanas/análise , Proteoglicanas/fisiologia , Líquido Sinovial/química , Animais , Fenômenos Biomecânicos , Bovinos
5.
J Genet Couns ; 27(6): 1428-1437, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-29967967

RESUMO

This qualitative study gathered opinions about genetic testing from people who received presymptomatic testing for Huntington's disease (HD) 20-30 years ago and have lived with the implications of that testing for decades. During the last section of a semi-structured interview, participants were asked open-ended questions about their opinions on the importance of autonomy in the decision to be tested for HD, whether a formal HD testing protocol is necessary, whether physician ordering for HD is acceptable without a formal protocol, whether online direct-to-consumer (DTC) genetic testing for HD is acceptable, and whether incidental/secondary findings should be returned in the context of whole exome/genome sequencing. Most-but not all-participants were in favor of an individual's right to decide whether and when to pursue HD testing, use of a formal HD testing protocol, and returning medically actionable secondary findings. However, the majority of participants were opposed not only to physician ordering and DTC HD testing in the absence of a formal protocol but also to returning a secondary finding of an expanded HD allele. This study presents the opinions of a unique and extremely well-informed cohort on issues that need to be taken into careful consideration by genetic counselors and other medical professionals who are developing genetic testing protocols, making decisions about the availability of genetic tests, and making decisions about whether and how to return incidental findings.


Assuntos
Tomada de Decisões , Triagem e Testes Direto ao Consumidor , Testes Genéticos , Conhecimentos, Atitudes e Prática em Saúde , Doença de Huntington/genética , Preferência do Paciente , Idoso , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Pesquisa Qualitativa
6.
Scand J Immunol ; 85(3): 191-196, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28128856

RESUMO

The pathogenesis of rheumatoid arthritis (RA) is incompletely understood. Human endogenous retroviruses (HERVs) and their superantigenic envelope protein (env) have been implicated in the pathogenesis of RA. In the present investigation, the arthritogenic potential of the superantigen staphylococcal enterotoxin A (SEA) has been investigated. In the present investigation, the bacterial superantigen staphylococcal enterotoxin A (SEA) was injected into the right knee joint of 15 Lewis rats. Further nine animals received saline. Animals were sacrificed one, five and 10 days after the injection, respectively. The antigens CD3, CD4, CD8, MHC class I, MHC class II, Pax5 and CD138 were investigated by immunohistochemistry on cryo-sections. After intra-articular SEA injection, the inflammation was initially dominated by CD8+ T cells. In the course of the investigation, the numbers of CD4+, Pax5+, CD138+ and MHC class II+ cells increased. CD3 was expressed in low numbers as compared to CD8. After saline injection, no similar inflammatory response has been detected. The arthritis induced by the superantigen SEA may be a novel model for inflammatory joint diseases, that is rheumatoid arthritis or juvenile idiopathic arthritis.


Assuntos
Artrite Experimental/imunologia , Artrite Experimental/patologia , Linfócitos T CD4-Positivos/imunologia , Linfócitos T CD8-Positivos/imunologia , Enterotoxinas/imunologia , Superantígenos/imunologia , Animais , Artrite Reumatoide/patologia , Linfócitos B/imunologia , Complexo CD3/metabolismo , Antígenos CD4/metabolismo , Antígenos CD8/metabolismo , Modelos Animais de Doenças , Antígenos de Histocompatibilidade Classe I/metabolismo , Antígenos de Histocompatibilidade Classe II/metabolismo , Masculino , Fator de Transcrição PAX5/metabolismo , Ratos , Ratos Endogâmicos Lew , Sindecana-1/metabolismo
7.
Br J Surg ; 103(12): 1649-1657, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27599301

RESUMO

BACKGROUND: Thyroid function has been associated with breast cancer risk, and breast cancer cell growth and proliferation. It is not clear whether thyroid function affects prognosis following breast cancer but, if so, this could have an important clinical impact. The present study analysed prospectively collected measurements of free tri-iodothyronine (T3), free thyroxine (T4), thyroid-stimulating hormone (TSH) and thyroid peroxidase antibodies (TPO-Ab) in relation to breast cancer survival. METHODS: The Malmö Diet and Cancer Study is a prospective cohort study of 17 035 women in Sweden. Study enrolment was conducted between 1991 and 1996. Patients with incident breast cancer were identified through record linkage with cancer registries until 31 December 2006. Information on vital status was collected from the Swedish Cause of Death Registry, with the endpoint breast cancer mortality (31 December 2013). Hazard ratios (HRs) with 95 per cent confidence intervals (c.i.) were obtained by Cox proportional hazards analysis. RESULTS: Some 766 patients with incident breast cancer were identified, of whom 551 were eligible for analysis. Compared with patients in the first free T4 tertile, breast cancer mortality was lower among those in the second tertile (HR 0·49, 95 per cent c.i. 0·28 to 0·84). There was an indication, although non-significant, of lower breast cancer mortality among patients in the second TSH tertile (HR 0·63, 0·37 to 1·09) and in those with positive TPO-Ab status (HR 0·61, 0·30 to 1·23). Free T3 showed no clear association with mortality. CONCLUSION: In the present study, there was a positive association between free T4 levels and improved breast cancer survival.


Assuntos
Neoplasias da Mama/mortalidade , Glândula Tireoide/fisiologia , Idoso , Anticorpos/metabolismo , Feminino , Humanos , Iodeto Peroxidase/imunologia , Pessoa de Meia-Idade , Estudos Prospectivos , Suécia/epidemiologia , Tireotropina/metabolismo , Tiroxina/metabolismo , Tri-Iodotironina/metabolismo
9.
Br J Anaesth ; 116(1): 83-9, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26675953

RESUMO

BACKGROUND: Postoperative cognitive dysfunction (POCD) is common after non-cardiac surgery, but the mechanism is unclear. We hypothesized that decrements in cognition 1 month after non-cardiac surgery would be associated with evidence of brain injury detected by elevation of plasma concentrations of S100ß, neuron-specific enolase (NSE), and/or the brain-specific protein glial fibrillary acid protein (GFAP). METHODS: One hundred and forty-nine patients undergoing shoulder surgery underwent neuropsychological testing before and then 1 month after surgery. Plasma was collected before and after anaesthesia. We determined the relationship between plasma biomarker concentrations and individual neuropsychological test results and a composite cognitive functioning score (mean Z-score). RESULTS: POCD (≥-1.5 sd decrement in Z-score from baseline) was present in 10.1% of patients 1 month after surgery. There was a negative relationship between higher plasma GFAP concentrations and lower postoperative composite Z-scores {estimated slope=-0.14 [95% confidence interval (CI) -0.24 to -0.04], P=0.005} and change from baseline in postoperative scores on the Rey Complex Figure Test copy trial (P=0.021), delayed recall trial (P=0.010), and the Symbol Digit Modalities Test (P=0.004) after adjustment for age, sex, history of hypertension and diabetes. A similar relationship was not observed with S100ß or NSE concentrations. CONCLUSIONS: Decline in cognition 1 month after shoulder surgery is associated with brain cellular injury as demonstrated by elevated plasma GFAP concentrations.


Assuntos
Encéfalo/fisiopatologia , Transtornos Cognitivos/sangue , Complicações Pós-Operatórias/sangue , Articulação do Ombro/cirurgia , Procedimentos Cirúrgicos Operatórios/efeitos adversos , Biomarcadores/sangue , Feminino , Seguimentos , Proteína Glial Fibrilar Ácida/sangue , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos/estatística & dados numéricos , Fosfopiruvato Hidratase/sangue , Subunidade beta da Proteína Ligante de Cálcio S100/sangue
11.
Ann Rheum Dis ; 73(10): 1819-25, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23852807

RESUMO

OBJECTIVE: To study the relationship of spinal inflammation and fatty degeneration (FD) as detected by MRI and new bone formation seen on conventional radiographs (CRs) in ankylosing spondylitis (AS). METHODS: CRs at baseline, 2 years and 5 years and spinal MRIs at baseline and 2 years of 73 AS patients treated with infliximab in European AS Infliximab Cohort were available. Relative risks (RR) were calculated with a general linear model after adjustment for within-patient variation. RESULTS: In a total of 1466 vertebral edges (VEs) without baseline syndesmophytes, 61 syndesmophytes developed at 5 years, the majority of which (57.4%) had no corresponding detectable MRI lesions at baseline. VEs with both inflammation and FD at baseline had the highest risk (RR 3.3, p=0.009) for syndesmophyte formation at 5 years, followed by VEs that developed new FD or did not resolve FD at 2 years (RR=2.3, p=0.034), while inflammation at baseline with no FD at 2 years had the lowest risk for syndesmophyte formation at 5 years (RR=0.8). Of the VEs with inflammation at baseline, >70% resolved completely, 28.8% turned into FD after 2 years, but only 1 syndesmophyte developed within 5 years. CONCLUSIONS: Parallel occurrence of inflammation and FD at baseline and development of FD without prior inflammation after 2 years were significantly associated with syndesmophyte formation after 5 years of anti-tumour necrosis factor (TNF) therapy. However, the sequence 'inflammation-FD-new bone formation' was rarely observed, an argument against the TNF-brake hypothesis. Whether an early suppression of inflammation leads to a decrease of the risk for new bone formation remains to be demonstrated.


Assuntos
Anticorpos Monoclonais/uso terapêutico , Antirreumáticos/uso terapêutico , Ossificação Heterotópica/etiologia , Espondilite Anquilosante/complicações , Espondilite Anquilosante/tratamento farmacológico , Fator de Necrose Tumoral alfa/antagonistas & inibidores , Tecido Adiposo/patologia , Adulto , Anticorpos Monoclonais/farmacologia , Antirreumáticos/farmacologia , Progressão da Doença , Feminino , Seguimentos , Humanos , Inflamação/diagnóstico , Inflamação/etiologia , Infliximab , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Ossificação Heterotópica/diagnóstico , Ossificação Heterotópica/prevenção & controle , Prognóstico , Índice de Gravidade de Doença , Espondilite Anquilosante/fisiopatologia
12.
Hernia ; 2024 Jun 08.
Artigo em Inglês | MEDLINE | ID: mdl-38850377

RESUMO

PURPOSE: Patients with abdominal rectus diastasis (ARD) may have muscular functional impairments, but clinics lack appropriate objective assessment tools. The aim was to establish the relative and absolute reliability, and convergent validity, of muscular activity using Surface Electromyography (SEMG) during isometric abdominal muscle strength testing in patients with ARD and controls without ARD. METHODS: Twenty-six patients with ARD were matched for age, sex and BMI with controls without ARD. Participants were tested twice during isometric muscular contractions using SEMG located on six abdominal sites. Mean amplitude, fatigue, and recruitment order were analyzed. Relative reliability was evaluated with Intraclass Correlation Coefficients (ICC), while absolute reliability was estimated by calculating the Standard Error of Measurement and Minimal Detectable Change. Convergent validity was addressed in relation to participant characteristics, functional ability, and symptoms. RESULTS: Mean SEMG amplitude for all abdominal wall muscle contractions showed moderate to excellent relative test-retest reliability, with ICC values ranging from 0.46 to 0.97. In contrast, fatigue and recruitment order displayed poor to moderate relative reliability in both groups. Absolute reliability measures were generally high. A moderate to high convergent validity (ARD: rho-value 0.41-0.70; Controls: rho-value 0.41-0.75) was observed for mean amplitude in relation to a functional sit-to-stand test, abdominal circumference, BMI, back pain, and quality-of-life. CONCLUSIONS: The results of applying SEMG during isometric abdominal muscle support practicing the method in clinics, although additional development is needed with further standardization and more functional testing. Furthermore, the method demonstrates construct validity in patients with ARD and in age- and sex-matched controls.

13.
Pulmonology ; 29(6): 518-534, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-35715333

RESUMO

This scoping review summarized the evidence regarding the impact of acute exacerbations of COPD (AECOPD) on patients' health status beyond pulmonary function. PubMed, Embase, and Web of Science were searched. Prospective cohort studies assessing the health status of patients with COPD in a stable phase of the disease and after a follow-up period (where at least one AECOPD occurred) were included. An integrated assessment framework of health status (i.e., physiological functioning, complaints, functional impairment, quality of life) was used. Twenty-two studies were included. AECOPD acutely affected exercise tolerance, quadriceps muscle strength, physical activity levels, symptoms of dyspnoea and fatigue, and impact of the disease. Long-term effects on quadriceps muscle strength, symptoms of dyspnoea and depression, and quality of life were found. Repeated exacerbations negatively impacted the fat-free mass, levels of dyspnoea, impact of the disease and quality of life. Conflicting evidence was found regarding the impact of repeated exacerbations on exercise tolerance and physical activity levels. AECOPD have well-established acute and long-term adverse effects on health status beyond pulmonary function; nevertheless, the recovery trajectory and the impact of repeated exacerbations are still poorly studied. Further prospective research is recommended to draw firm conclusions on these aspects.


Assuntos
Doença Pulmonar Obstrutiva Crônica , Qualidade de Vida , Humanos , Estudos Prospectivos , Progressão da Doença , Nível de Saúde , Dispneia/etiologia
14.
J Emerg Manag ; 21(7): 307-313, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37154462

RESUMO

INTRODUCTION: Fear of COVID-19 may differ for individuals with compromised health and those with unhealthy behaviors, placing them at greater risk. Based on previous analysis of academic medical center faculty and staff, the authors predicted that workers who were smokers/previous smokers would express the greater fear of COVID-19 relative to nonsmokers. METHODS: The present study used the Fear of COVID-19 Scale to assess fear among nonsmokers (n = 1,489) and smokers/previous smokers (n = 272) from a larger population of academic medical center members (N = 1,761). This study assessed nonsmokers' and smokers/previous smokers' demographic and background variables on Fear of COVID-19 scores. RESULTS: In this academic community, smokers/previous smokers had higher fear of COVID-19 scores than did nonsmokers (p < 0.05). Smokers/previous smokers differed from nonsmokers on three Fear of COVID-19 scale items (most afraid of COVID-19, fear of losing life, and physiological fear of COVID-19). DISCUSSION/CONCLUSIONS: These results provide a better understanding of how fear of COVID-19 can differ based on one's smoking status. These findings inform public health smoking cessation efforts aimed at reducing morbidity and mortality, both in response and secondary to COVID-19 exposure.


Assuntos
COVID-19 , Fumantes , Humanos , não Fumantes , Medo , Promoção da Saúde
15.
Am J Transplant ; 12(9): 2384-94, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22702307

RESUMO

Recent data suggest that donor-specific memory T cells (T(mem)) are an independent risk factor for rejection and poor graft function in patients and a major challenge for immunosuppression minimizing strategies. Many tolerance induction protocols successfully proven in small animal models e.g. costimulatory blockade, T cell depletion failed in patients. Consequently, there is a need for more predictive transplant models to evaluate novel promising strategies, such as adoptive transfer of regulatory T cells (Treg). We established a clinically more relevant, life-supporting rat kidney transplant model using a high responder (DA to LEW) recipients that received donor-specific CD4(+)/ 8(+) GFP(+) T(mem) before transplantation to achieve similar pre-transplant frequencies of donor-specific T(mem) as seen in many patients. T cell depletion alone induced long-term graft survival in naïve recipients but could not prevent acute rejection in T(mem)(+) rats, like in patients. Only if T cell depletion was combined with permanent CNI-treatment, the intragraft inflammation, and acute/chronic allograft rejection could be controlled long-term. Remarkably, combining 10 days CNI treatment and adoptive transfer of Tregs (day 3) but not Treg alone also induced long-term graft survival and an intragraft tolerance profile (e.g. high TOAG-1) in T(mem)(+) rats. Our model allows evaluation of novel therapies under clinically relevant conditions.


Assuntos
Inibidores de Calcineurina , Rejeição de Enxerto , Imunossupressores/farmacologia , Transplante de Rim , Linfócitos T Reguladores/imunologia , Transferência Adotiva , Animais , Citometria de Fluxo , Memória Imunológica , Depleção Linfocítica , Ratos , Ratos Endogâmicos Lew , Reação em Cadeia da Polimerase Via Transcriptase Reversa
16.
Cancers (Basel) ; 14(24)2022 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-36551681

RESUMO

BACKGROUND: There are limited published data in the Canadian healthcare system on the use of granulocyte colony-stimulating factor (G-CSF) among patients with breast cancer. This study characterized real-world G-CSF use during the period surrounding the introduction of filgrastim biosimilar. METHODS: Electronic medical records were reviewed retrospectively for patients with breast cancer who received moderately or highly myelosuppressive (neo)adjuvant chemotherapy from 2008 to 2019 in Alberta, Canada. Trends in G-CSF usage were plotted to elucidate temporal variations and multivariable regression models were constructed to identify clinical factors associated with G-CSF use. RESULTS: We included 6662 patients in our analyses. G-CSF was used in 57.1% of patients during their treatment trajectory. Among the 3801 patients who were treated with G-CSF, the majority received pegfilgrastim only (91.5%; n = 3477) versus filgrastim only (5.7%; n = 217). G-CSF use increased linearly more than two-fold over the 11-year study period. Predictors of G-CSF use included younger age, south zone of residence, higher neighborhood education, inferior disease stage, highly neutropenic risk chemotherapy, and more recent chemotherapy initiation. CONCLUSIONS: Despite increasing G-CSF usage over time, an appreciable proportion of patients for whom G-CSF prophylaxis is recommended did not receive it. G-CSF use could be further optimized to align with supportive care clinical guidelines and reduce the impact of neutropenia and its associated complications.

17.
Artigo em Inglês | MEDLINE | ID: mdl-35329060

RESUMO

Background: Differing expressions of the fear of COVID-19 between men and women can potentially increase both immediate and long-term physical health risks. We predicted that women students would express greater fear of COVID-19. Methods: We used an Internet-delivered Fear of COVID-19 Scale (FCV-19S) to assess fear among men (n = 100) and women (n = 272) from a larger population of academic medical center members (n = 1761). Sex differences in emotional and physical symptoms were assessed as subcategories within fear scores. Results: Women reported greater fear of COVID-19 than men (p < 0.001). Women reported greater emotional fear (p < 0.001) on specific scale items (thinking of COVID-19, watching news stories about COVID-19, and losing sleep due to fear of contracting COVID-19). Discussion/Conclusions: These results provide a better understanding of how fear of COVID-19 can differ based on sex and how that fear may be expressed differently through emotional and physical symptoms. This information will inform academic health centers of COVID-19 prevention and management policies that may include a gender-specific focus.


Assuntos
COVID-19 , Estudantes de Medicina , COVID-19/epidemiologia , Emoções , Medo/psicologia , Feminino , Humanos , Masculino , Caracteres Sexuais
18.
Am J Disaster Med ; 17(4): 313-319, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-37551896

RESUMO

INTRODUCTION: Fear of COVID-19 may differ for individuals with compromised health and those with unhealthy behaviors, placing them at greater risk. Based on previous analysis of academic medical center faculty and staff, the authors predicted that workers who were smokers/previous smokers would express the greater fear of COVID-19 relative to nonsmokers. METHODS: The present study used the Fear of COVID-19 Scale to assess fear among nonsmokers (n = 1,489) and smokers/previous smokers (n = 272) from a larger population of academic medical center members (N = 1,761). This study assessed nonsmokers' and smokers/previous smokers' demographic and background variables on Fear of COVID-19 scores. RESULTS: In this academic community, smokers/previous smokers had higher fear of COVID-19 scores than did nonsmokers (p < 0.05). Smokers/previous smokers differed from nonsmokers on three Fear of COVID-19 scale items (most afraid of COVID-19, fear of losing life, and physiological fear of COVID-19). DISCUSSION/CONCLUSIONS: These results provide a better understanding of how fear of COVID-19 can differ based on one's smoking status. These findings inform public health smoking cessation efforts aimed at reducing morbidity and mortality, both in response and secondary to COVID-19 exposure.

19.
Ann Rheum Dis ; 70(1): 25-31, 2011 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21109520

RESUMO

OBJECTIVE: To evaluate new classification criteria for peripheral spondyloarthritis (SpA) in patients with SpA with peripheral manifestations only. METHODS: In this Assessment of SpondyloArthritis international Society (ASAS) study, two prespecified sets of criteria were compared against the European Spondylarthropathy Study Group (ESSG) and Amor criteria in newly referred consecutive patients with undiagnosed peripheral arthritis, and/or enthesitis, and/or dactylitis that usually began before 45 years of age. The clinical diagnosis (SpA vs no SpA) made by the ASAS rheumatologist served as reference standard. RESULTS: In all, 24 ASAS centres included 266 patients, with a final diagnosis of SpA being made in 66.2%. After adjustments a final set of criteria showed the best balance between sensitivity (77.8%) and specificity (82.9%): arthritis and/or enthesitis and/or dactylitis plus (A) one or more of the following parameters: psoriasis, inflammatory bowel disease, preceding infection, human leucocyte antigen B27, uveitis, sacroiliitis on imaging, or (B) two or more other parameters: arthritis, enthesitis, dactylitis, inflammatory back pain in the past, family history of SpA. The new criteria performed better than modified versions of the ESSG (sensitivity 62.5%, specificity 81.1%) and the Amor criteria (sensitivity 39.8%, specificity 97.8%), particularly regarding sensitivity. In the entire ASAS population of 975 patients the combined use of ASAS criteria for axial SpA and ASAS criteria for peripheral SpA also had a better balance (sensitivity 79.5%, specificity 83.3%) than the modified ESSG (sensitivity 79.1%, specificity 68.8%) and Amor criteria (sensitivity 67.5%, specificity 86.7%), respectively. CONCLUSIONS: The new ASAS classification criteria for peripheral SpA performed well in patients presenting with peripheral arthritis, enthesitis and/or dactylitis.


Assuntos
Espondilartrite/classificação , Adulto , Artrite Reativa/classificação , Artrite Reativa/diagnóstico , Diagnóstico Diferencial , Feminino , Humanos , Doenças Inflamatórias Intestinais/complicações , Cooperação Internacional , Masculino , Pessoa de Meia-Idade , Psoríase/complicações , Sacroileíte/complicações , Sensibilidade e Especificidade , Espondilartrite/complicações , Espondilartrite/diagnóstico , Espondilite Anquilosante/classificação , Espondilite Anquilosante/complicações , Espondilite Anquilosante/diagnóstico , Uveíte/complicações , Adulto Jovem
20.
Clin Exp Rheumatol ; 29(4): 672-80, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21906431

RESUMO

OBJECTIVES: To study the long-term efficacy and safety of treatment with infliximab in patients with ankylosing spondylitis (AS) in a real life setting. METHODS: AS patients from 6 European countries who had finished the 2-year trial ASSERT were invited to participate in the open- label investigator-driven study EASIC. At baseline, 2 groups were formed: patients of group 1 had not been treated with infliximab after ASSERT, while those of group 2 had continuously received it. Patients of group 1 were further subdivided in group 1a: patients with a relapse and 1b: in remission. All patients of group 1a and 2 continuously received infliximab for 96 weeks, mean dose 5 mg/kg, intervals 6-8 weeks. Patients of group 1b were also treated in case of relapse. RESULTS: A total of 103/149 patients (69%) were included in EASIC, 1.3 ± 0.9 years after the end of ASSERT: 9 in group 1a, 5 in group 1b and 89 in group 2. Most patients were male (83%), mean age 44 years. Most patients of group 2 completed the trial (86%) vs. only 5 of group 1 (33%) - mostly due to allergic reactions after readministration of infliximab. In total, there were 22 drop-outs due to 6 adverse events, 4 lack of efficacy, 3 planned pregnancy. All standard assessments indicated beneficial values over time, at week 96 significantly better than at baseline of ASSERT. CONCLUSIONS: The majority of patients were continuously and successfully treated with infliximab for 5 years, whereas discontinuation and reintroduction of therapy was less satisfactory due to the frequent occurrence of hypersensitivity reactions. Anti-TNF therapy with infliximab proved to be effective and safe on a long-term basis.


Assuntos
Anti-Inflamatórios/administração & dosagem , Anticorpos Monoclonais/administração & dosagem , Espondilite Anquilosante/tratamento farmacológico , Adulto , Anti-Inflamatórios/efeitos adversos , Anticorpos Monoclonais/efeitos adversos , Esquema de Medicação , Hipersensibilidade a Drogas/etiologia , Europa (Continente) , Feminino , Humanos , Infliximab , Masculino , Pessoa de Meia-Idade , Pacientes Desistentes do Tratamento , Gravidez , Recidiva , Indução de Remissão , Espondilite Anquilosante/diagnóstico , Fatores de Tempo , Resultado do Tratamento
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