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1.
Issues Ment Health Nurs ; 45(4): 365-370, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38564680

RESUMO

Undocumented migrants are often in a position of extreme vulnerability and experience many barriers to accessing mental health care. It is crucial that health professionals understand this and quickly establish trust and respect. If the stressful living conditions that contribute to the distress of undocumented migrants are recognized, compassionate and trauma-informed care is enhanced. In this regard, it is important that health professionals understand the fear of being expelled from a country. This paper discusses problems that arise when health professionals interact with undocumented migrants and the need to quickly convey recognition to establish trust and respect. We argue that insights from Axel Honneth's social philosophical theory of recognition and disrespect can further enhance health professionals strategies to improve their verbal and non-verbal communication and thereby increase access to health care for undocumented migrants. We suggest ideas for codifying this knowledge in health care policies and guidelines.


Assuntos
Migrantes , Humanos , Acessibilidade aos Serviços de Saúde , Respeito , Medo , Política de Saúde
2.
J Occup Environ Med ; 66(3): e93-e98, 2024 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-38242136

RESUMO

OBJECTIVE: Dust exposure is high in several industries. We investigated associations of exposure in paper mills, wood pellet plants, and iron foundries with lung function impairment. METHODS: Respirable silica, inhalable paper dust, or inhalable wood dust were collected as personal samples and spirometry was performed. Multiple linear regression analyzed associations with FEV 1 %pred and FVC%pred. RESULTS: Wood pellet workers with high exposure to inhalable dust had lower FEV 1 %pred (95% CI) (-9.4 [-16 to -2.6]) and FVC%pred (-9.8 [-15 to -4.0]) compared with lowest exposure level. Workers at paper mills and foundries had no dose-dependent association but lower FEV 1 %pred and FVC%pred than in workers at wood pellets plants. CONCLUSIONS: Increased exposure to inhalable wood dust is associated with decreased lung function. Foundry and paper mill workers have generally lower lung function than wood pellet workers. Spirometry should be considered in workers in industries with airborne particulate matter pollution.


Assuntos
Poluentes Ocupacionais do Ar , Exposição Ocupacional , Humanos , Exposição Ocupacional/efeitos adversos , Exposição Ocupacional/análise , Poluentes Ocupacionais do Ar/efeitos adversos , Poluentes Ocupacionais do Ar/análise , Volume Expiratório Forçado , Capacidade Vital , Poeira/análise , Fatores de Risco , Pulmão/química , Madeira/efeitos adversos , Madeira/química
3.
J Occup Environ Med ; 65(9): 731-739, 2023 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-37311079

RESUMO

OBJECTIVE: We present quantitative exposure-response data on silica exposure in male Swedish iron foundry workers for cardiovascular, cerebrovascular, and respiratory morbidity. METHODS: This research is a cohort study of 2063 male Swedish iron foundry workers. From the Swedish National Patient Registers, data on morbidity incidence were retrieved. A historical measurement database of 1667 respirable silica exposure measurements from 10 Swedish iron foundries was used to calculate the cumulative exposure dose for each worker. RESULTS: Increased morbidity risk for the whole group of foundry workers was determined for ischemic heart disease, cerebrovascular disease, chronic obstructive pulmonary disease (COPD), bronchitis, and pneumonia. In addition, an increased risk for COPD at cumulative silica exposures ranging from 0.11 to 0.84 mg/m 3 year is presented. CONCLUSIONS: The study presents a significantly increased COPD risk at cumulative silica exposures below the Swedish occupational exposure limit.


Assuntos
Doenças Profissionais , Exposição Ocupacional , Doença Pulmonar Obstrutiva Crônica , Humanos , Masculino , Estudos de Coortes , Suécia/epidemiologia , Ferro , Exposição Ocupacional/efeitos adversos , Exposição Ocupacional/análise , Dióxido de Silício/toxicidade , Poeira/análise , Doenças Profissionais/induzido quimicamente , Doenças Profissionais/epidemiologia
4.
Environ Health ; 22(1): 25, 2023 03 13.
Artigo em Inglês | MEDLINE | ID: mdl-36907865

RESUMO

BACKGROUND: The inflammatory responses are central components of diseases associated with particulate matter (PM) exposure, including systemic diseases such as cardiovascular diseases (CVDs). The aim of this study was to determine if exposure to PM, including respirable dust or quartz in the iron foundry environment mediates systemic inflammatory responses, focusing on the NLRP3 inflammasome and novel or established inflammatory markers of CVDs. METHODS: The exposure to PM, including respirable dust, metals and quartz were determined in 40 foundry workers at two separate occasions per worker. In addition, blood samples were collected both pre-shift and post-shift and quantified for inflammatory markers. The respirable dust and quartz exposures were correlated to levels of inflammatory markers in blood using Pearson, Kendall τ and mixed model statistics. Analyzed inflammatory markers included: 1) general markers of inflammation, including interleukins, chemokines, acute phase proteins, and white blood cell counts, 2) novel or established inflammatory markers of CVD, such as growth/differentiation factor-15 (GDF-15), CD40 ligand, soluble suppressor of tumorigenesis 2 (sST2), intercellular/vascular adhesion molecule-1 (ICAM-1, VCAM-1), and myeloperoxidase (MPO), and 3) NLRP3 inflammasome-related markers, including interleukin (IL)-1ß, IL-18, IL-1 receptor antagonist (IL-1Ra), and caspase-1 activity. RESULTS: The average respirator adjusted exposure level to respirable dust and quartz for the 40 foundry workers included in the study was 0.65 and 0.020 mg/m3, respectively. Respirable quartz exposure correlated with several NLRP3 inflammasome-related markers, including plasma levels of IL-1ß and IL-18, and several caspase-1 activity measures in monocytes, demonstrating a reverse relationship. Respirable dust exposure mainly correlated with non-inflammasome related markers like CXCL8 and sST2. CONCLUSIONS: The finding that NLRP3 inflammasome-related markers correlated with PM and quartz exposure suggest that this potent inflammatory cellular mechanism indeed is affected even at current exposure levels in Swedish iron foundries. The results highlight concerns regarding the safety of current exposure limits to respirable dust and quartz, and encourage continuous efforts to reduce exposure in dust and quartz exposed industries.


Assuntos
Poluentes Ocupacionais do Ar , Doenças Cardiovasculares , Exposição Ocupacional , Humanos , Quartzo/análise , Exposição Ocupacional/análise , Interleucina-18 , Inflamassomos , Proteína 3 que Contém Domínio de Pirina da Família NLR , Poeira/análise , Biomarcadores , Material Particulado , Ferro , Caspases , Exposição por Inalação/análise , Poluentes Ocupacionais do Ar/análise
5.
Cells ; 12(2)2023 01 11.
Artigo em Inglês | MEDLINE | ID: mdl-36672217

RESUMO

Additive manufacturing (AM) or industrial 3D printing uses cutting-edge technologies and materials to produce a variety of complex products. However, the effects of the unintentionally emitted AM (nano)particles (AMPs) on human cells following inhalation, require further investigations. The physicochemical characterization of the AMPs, extracted from the filter of a Laser Powder Bed Fusion (L-PBF) 3D printer of iron-based materials, disclosed their complexity, in terms of size, shape, and chemistry. Cell Painting, a high-content screening (HCS) assay, was used to detect the subtle morphological changes elicited by the AMPs at the single cell resolution. The profiling of the cell morphological phenotypes, disclosed prominent concentration-dependent effects on the cytoskeleton, mitochondria, and the membranous structures of the cell. Furthermore, lipidomics confirmed that the AMPs induced the extensive membrane remodeling in the lung epithelial and macrophage co-culture cell model. To further elucidate the biological mechanisms of action, the targeted metabolomics unveiled several inflammation-related metabolites regulating the cell response to the AMP exposure. Overall, the AMP exposure led to the internalization, oxidative stress, cytoskeleton disruption, mitochondrial activation, membrane remodeling, and metabolic reprogramming of the lung epithelial cells and macrophages. We propose the approach of integrating Cell Painting with metabolomics and lipidomics, as an advanced nanosafety methodology, increasing the ability to capture the cellular and molecular phenotypes and the relevant biological mechanisms to the (nano)particle exposure.


Assuntos
Lipidômica , Metabolômica , Humanos , Pulmão/metabolismo , Células Epiteliais , Fenótipo
6.
Front Toxicol ; 4: 836447, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35548681

RESUMO

Additive manufacturing (AM) or industrial three-dimensional (3D) printing drives a new spectrum of design and production possibilities; pushing the boundaries both in the application by production of sophisticated products as well as the development of next-generation materials. AM technologies apply a diversity of feedstocks, including plastic, metallic, and ceramic particle powders with distinct size, shape, and surface chemistry. In addition, powders are often reused, which may change the particles' physicochemical properties and by that alter their toxic potential. The AM production technology commonly relies on a laser or electron beam to selectively melt or sinter particle powders. Large energy input on feedstock powders generates several byproducts, including varying amounts of virgin microparticles, nanoparticles, spatter, and volatile chemicals that are emitted in the working environment; throughout the production and processing phases. The micro and nanoscale size may enable particles to interact with and to cross biological barriers, which could, in turn, give rise to unexpected adverse outcomes, including inflammation, oxidative stress, activation of signaling pathways, genotoxicity, and carcinogenicity. Another important aspect of AM-associated risks is emission/leakage of mono- and oligomers due to polymer breakdown and high temperature transformation of chemicals from polymeric particles, both during production, use, and in vivo, including in target cells. These chemicals are potential inducers of direct toxicity, genotoxicity, and endocrine disruption. Nevertheless, understanding whether AM particle powders and their byproducts may exert adverse effects in humans is largely lacking and urges comprehensive safety assessment across the entire AM lifecycle-spanning from virgin and reused to airborne particles. Therefore, this review will detail: 1) brief overview of the AM feedstock powders, impact of reuse on particle physicochemical properties, main exposure pathways and protective measures in AM industry, 2) role of particle biological identity and key toxicological endpoints in the particle safety assessment, and 3) next-generation toxicology approaches in nanosafety for safety assessment in AM. Altogether, the proposed testing approach will enable a deeper understanding of existing and emerging particle and chemical safety challenges and provide a strategy for the development of cutting-edge methodologies for hazard identification and risk assessment in the AM industry.

7.
J Occup Environ Med ; 64(7): 593-598, 2022 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-35275887

RESUMO

OBJECTIVE: The mortality and morbidity pattern for respiratory diseases was determined in a cohort of 1752 Swedish foundry workers, particularly for respirable silica dust exposure. METHODS: The morbidity follow-up in the Swedish National Non-primary Outpatient Register covered 2001 to 2017 (NPR; specialist not in care patients), the mortality from the National Causes of Death Register covered 2001 to 2017. Cumulative exposures to silica and dust were determined. RESULTS: The morbidity in COPD showed significantly increased risk for all exposure groups, as did silicosis in the high exposure group, these cases corresponded to silica exposure levels below 0.05 mg/m3. The mortality of all causes and respiratory diseases was significantly increased by cumulative silica exposure in the high exposure group. CONCLUSIONS: Significantly increased morbidity for respiratory diseases and COPD was determined at silica exposure levels below the current Swedish OEL.


Assuntos
Exposição Ocupacional , Doença Pulmonar Obstrutiva Crônica , Transtornos Respiratórios , Poeira/análise , Humanos , Ferro , Exposição Ocupacional/efeitos adversos , Exposição Ocupacional/análise , Dióxido de Silício/toxicidade , Suécia/epidemiologia
8.
Biomarkers ; 27(1): 60-70, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34872432

RESUMO

INTRODUCTION: In light of potential negative health effects of cobalt exposure, a characterization of inflammatory mechanisms in exposed individuals is warranted. The current study investigated cobalt exposure in the Swedish hard metal industry and its relationship to inflammatory markers, including NLRP3 inflammasome activation and white blood cell (WBC) counts. MATERIALS AND METHODS: Inhalable cobalt and dust exposures, and systemic cobalt levels, were determined for 72 workers in the hard metal industry and linear regression models were applied to correlate exposure to markers of inflammasome activation and WBC counts. RESULTS: Mean exposures to inhalable dust (0.11 mg/m3) and cobalt (0.0034 mg/m3) were below the Swedish occupational exposure limits, and these low exposures did not correlate with any investigated outcomes. Instead, cobalt blood levels significantly correlated with a ca 10% decrease in IL-18 plasma levels per 10 nM cobalt increase. Furthermore, pre-shift cobalt blood and/or urine levels significantly correlated with some WBC measures, including decreased neutrophil-to-lymphocyte ratio, increased lymphocyte-to-monocyte ratio, and lymphocyte counts. CONCLUSION: The low inhalable particle exposures had no impact on WBC counts and inflammasome activation. Instead, systemic cobalt levels, which also include skin exposure, demonstrated possible suppressive effects on inflammatory responses in cobalt-exposed individuals in the hard metal industry.


Assuntos
Poluentes Ocupacionais do Ar , Exposição Ocupacional , Poluentes Ocupacionais do Ar/análise , Poluentes Ocupacionais do Ar/toxicidade , Ligas , Cobalto/toxicidade , Poeira/análise , Humanos , Inflamassomos , Contagem de Leucócitos , Proteína 3 que Contém Domínio de Pirina da Família NLR , Exposição Ocupacional/análise , Exposição Ocupacional/estatística & dados numéricos , Tungstênio
9.
Respir Med ; 189: 106643, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34653874

RESUMO

BACKGROUND: Inhalation of small particulate matter (PM 2.5) may be associated with development of respiratory disease. Increased respiratory symptoms have been reported among military staff after service in countries with recurrent desert storms. OBJECTIVE: The aim was to investigate whether an assignment in a desert environment and exposure to desert storms are associated with negative effects on respiratory health. METHODS: In two cohorts of Swedish soldiers serving in Mali as part of the United Nations stabilization forces, examination with spirometry, determination of fraction of exhaled nitric oxide (FeNO), and a questionnaire including participant characteristics, symptoms, and exposure was performed before and after service. Ambient air sampling was conducted on-site. Paired t-test was used to compare pre- and post-variables on lung function data, FeNO and symptom level. RESULTS: Most indoor and outdoor air measurements of dust and silica were within the Swedish occupational exposure limit for PM2.5 and silica (<0.10-2.7 mg/m3 and <0.002-0.40 mg/m3, respectively) as well as for respirable dust and silica (0.056-0.078 mg/m3and 0.0033-0.025 mg/m3, respectively). In the subgroup of participants with reported exposure to desert storms during the stay in Mali, forced expiratory volume in 1 s (FEV1) was significantly lower after exposure than before the mission (mean litres (SD) 4.21 ± 0.66 vs 4.33 ± 0.72, p = 0.021). CONCLUSION: Exposure to a desert storm was associated with a decrease in FEV1. Exposure to small particulate matter may contribute to the development of respiratory disease and thus spirometry should be performed after occupational exposure to desert storms.


Assuntos
Poluentes Atmosféricos/análise , Clima Desértico , Militares , Óxido Nítrico/análise , Exposição Ocupacional/análise , Doenças Respiratórias/etiologia , Adulto , Feminino , Humanos , Masculino , Mali , Material Particulado/análise , Testes de Função Respiratória , Inquéritos e Questionários , Suécia
10.
BMC Health Serv Res ; 21(1): 830, 2021 Aug 17.
Artigo em Inglês | MEDLINE | ID: mdl-34404416

RESUMO

BACKGROUND: Undocumented migrants face many hardships in their everyday life such as poor living conditions, discrimination, and lack of access to healthcare. Previous studies have demonstrated considerable health care needs for psychiatric disorders as well as physical diseases. The aim of this paper was to find out the main barriers that undocumented migrants experience in accessing the Swedish healthcare system and to explore their relation with socioeconomic factors. METHODS: A cross-sectional study with adult undocumented migrants was performed in the three largest cities of Sweden in 2014-2016. Sampling was done via informal networks. A socioeconomic questionnaire was constructed including 22 barriers to health care. Trained field workers conducted the interviews. A principal component analysis was conducted of all barriers to reveal central components. Then, Pearson's chi-squared test was used to explore the characteristics of undocumented migrants experiencing barriers to care. RESULTS: Two main components/barriers were extracted: "Fear of being taken by police/authorities", which was related to fear of disclosure by or in relation to seeking health care, and "Structural and psychosocial factors" which was related to practical obstacles or shame of being ill. Lower age (74.1 % vs 56.0 %), lower level of education (75.0 % vs. 45.1 %), and having no children (70.3 % vs. 48.1 %) were significantly related to a higher likelihood of experiencing a barrier. CONCLUSION: Fear of deportation and practical and psychosocial factors constitute hinderance of access to healthcare for undocumented migrants in Sweden. This highlights the importance of clear instructions, both to undocumented migrants and health professionals about the right to health care according to the international law on human rights as well as the law of confidentiality.


Assuntos
Migrantes , Adulto , Estudos Transversais , Acessibilidade aos Serviços de Saúde , Humanos , Análise de Componente Principal , Suécia
11.
Am J Community Psychol ; 68(3-4): 427-439, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34170007

RESUMO

Socioeconomic factors appear to impact mental health conditions such as depression, but little is known about the relative and combined role of neighborhood and personal socioeconomic deprivation among Hispanics/Latinos. This study examined cross-sectional associations of neighborhood and personal socioeconomic deprivation with depression symptoms in a US Hispanic/Latino population from the San Diego Field Center of the Hispanic Community Health Study/Study of Latinos (n = 3,851). Depression symptoms were assessed with the ten-item Centers for Epidemiological Studies in Depression Scale. Neighborhood socioeconomic deprivation was a composite of eleven variables (e.g., neighborhood income, education, employment, household crowding). Greater personal socioeconomic deprivation based on education, income, and employment was generally associated with higher depression symptoms, including after adjusting for neighborhood socioeconomic deprivation. Greater neighborhood socioeconomic deprivation was associated with higher depression symptoms in females but not males, but the association in females became non-significant when adjusting for personal socioeconomic deprivation. Neighborhood socioeconomic deprivation did not significantly interact with personal socioeconomic deprivation in relation to depression symptoms. The present findings support the association of personal socioeconomic status with mental health (indicated by depression symptoms) among Hispanic/Latino populations, whereas neighborhood socioeconomic deprivation did not relate to depression beyond the impact of personal indicators.


Assuntos
Depressão , Saúde Pública , Adulto , Estudos Transversais , Aglomeração , Depressão/epidemiologia , Características da Família , Feminino , Hispânico ou Latino , Humanos , Fatores de Risco , Fatores Socioeconômicos , Estados Unidos/epidemiologia
12.
Biomarkers ; 26(6): 557-569, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34128444

RESUMO

PURPOSE: To study the relationship between inhalation of airborne particles and cobalt in the Swedish hard metal industry and markers of inflammation and coagulation in blood. METHODS: Personal sampling of inhalable cobalt and dust were performed for subjects in two Swedish hard metal plants. Stationary measurements were used to study concentrations of inhalable, respirable, and total dust and cobalt, PM10 and PM2.5, the particle surface area and the particle number concentrations. The inflammatory markers CC16, TNF, IL-6, IL-8, IL-10, SAA and CRP, and the coagulatory markers FVIII, vWF, fibrinogen, PAI-1 and D-dimer were measured. A complete sampling was performed on the second or third day of a working week following a work-free weekend, and additional sampling was taken on the fourth or fifth day. The mixed model analysis was used, including covariates. RESULTS: The average air concentrations of inhalable dust and cobalt were 0.11 mg/m3 and 0.003 mg/m3, respectively. For some mass-based exposure measures of cobalt and total dust, statistically significant increased levels of FVIII, vWF and CC16 were found. CONCLUSIONS: The observed relationships between particle exposure and coagulatory biomarkers may indicate an increased risk of cardiovascular disease.


Assuntos
Poluentes Ocupacionais do Ar/análise , Coagulação Sanguínea , Indústria Química , Cobalto/química , Inflamação/sangue , Exposição Ocupacional/análise , Tamanho da Partícula , Ligas/análise , Biomarcadores/sangue , Cobalto/análise , Humanos , Propriedades de Superfície , Suécia , Tungstênio/análise
13.
J Occup Environ Med ; 62(10): 820-829, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-33009343

RESUMO

OBJECTIVE: To study the relationship between inhalable dust and cobalt, and respiratory symptoms, lung function, exhaled nitric oxide in expired air, and CC16 in the Swedish hard metal industry. METHODS: Personal sampling of inhalable dust and cobalt, and medical examination including blood sampling was performed for 72 workers. Exposure-response relationships were determined using logistic, linear, and mixed-model analysis. RESULTS: The average inhalable dust and cobalt concentrations were 0.079 and 0.0017 mg/m, respectively. Statistically significant increased serum levels of CC16 were determined when the high and low cumulative exposures for cobalt were compared. Nonsignificant exposure-response relationships were observed between cross-shift inhalable dust or cobalt exposures and asthma, nose dripping, and bronchitis. CONCLUSIONS: Our findings suggest an exposure-response relationship between inhalable cumulative cobalt exposure and CC16 levels in blood, which may reflect an injury or a reparation process in the lungs.


Assuntos
Poluentes Ocupacionais do Ar , Cobalto , Exposição Ocupacional , Poluentes Ocupacionais do Ar/análise , Ligas , Cobalto/análise , Poeira/análise , Humanos , Metalurgia , Exposição Ocupacional/análise , Suécia , Tungstênio
14.
Physiol Rep ; 8(16): e14477, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-32845567

RESUMO

We have previously shown that functional residual capacity (FRC) and lung clearance index were significantly greater in sleeping healthy infants when measured by N2 (nitrogen) washout using 100% O2 (oxygen) versus 4% SF6 (sulfur hexafluoride) washout using air. Following 100% O2 exposure, tidal volumes decreased by over 30%, while end-expiratory lung volume (EELV, i.e., FRC) rose markedly based on ultrasonic flow meter assessments. In the present study to investigate the mechanism behind the observed changes, N2 MBW was performed in 10 separate healthy full-term spontaneously sleeping infants, mean (range) 26 (18-31) weeks, with simultaneous EELV monitoring (respiratory inductance plethysmography, RIP) and oxygen uptake (V´O2 ) assessment during prephase air breathing, during N2 washout by exposure to 100% O2 , and subsequently during air breathing. While flow meter signals suggested a rise in ELLV by mean (SD) 26 (9) ml over the washout period, RIP signals demonstrated no EELV change. V'O2 /FRC ratio during air breathing was mean (SD) 0.43 (0.08)/min, approximately seven times higher than that calculated from adult data. We propose that our previously reported flow meter-based overestimation of EELV was in fact a physiological artifact caused by rapid and marked movement of O2 across the alveolar capillary membrane into the blood and tissue during 100% O2 exposure, without concomitant transfer of N2 to the same degree in the opposite direction. This may be driven by the high observed O2 consumption and resulting cardiac output encountered in infancy. Furthermore, the low resting lung volume in infancy may make this error in lung volume determination by N2 washout relatively large.


Assuntos
Ventilação Pulmonar , Sono , Débito Cardíaco , Feminino , Humanos , Lactente , Medidas de Volume Pulmonar/métodos , Masculino , Gases Nobres , Consumo de Oxigênio , Pletismografia/métodos
15.
PLoS One ; 15(8): e0237100, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32760159

RESUMO

PURPOSE: Cobalt exposure is known to cause adverse effects on health. A major use of cobalt is in the manufacture of hard metal. Exposure can lead to asthma, hard metal lung disease, contact allergy and increased risk of cancer. Cobalt is mainly absorbed from the pulmonary tract, however penetration through skin may occur. The relationships between exposure to inhalable cobalt in air and on skin and the uptake in blood and urine will be investigated, as well as the association between dermal symptoms and dermal exposure. METHODS: Cobalt exposure in 71 workers in hard metal production facilities was measured as inhalable cobalt in the breathing zone and cobalt found on skin with acid wash. Uptake of cobalt was determined with concentrations in blood and urine. Correlations between exposure and uptake were analysed. RESULTS: Inhalable cobalt in air and cobalt in blood and urine showed rank correlations with coefficients 0.40 and 0.25. Cobalt on skin and uptake in blood and urine presented correlation coefficients of 0.36 and 0.17. Multiple linear regression of cobalt in air and on skin with cobalt in blood showed regression coefficients with cobalt in blood (ß = 203 p < 0.0010, and ß = 0.010, p = 0.0040) and with cobalt in urine (ß = 5779, p = 0.0010, and ß = 0.10, p = 0.60). CONCLUSIONS: Our data presents statistically significant correlations between exposure to cobalt in air with uptake of cobalt in blood and urine. Cobalt on skin was statistically significant with cobalt in blood but not with urine.


Assuntos
Cobalto/sangue , Intoxicação por Metais Pesados/epidemiologia , Exposição por Inalação/estatística & dados numéricos , Metalurgia/estatística & dados numéricos , Exposição Ocupacional/estatística & dados numéricos , Adulto , Poluentes Ocupacionais do Ar/sangue , Poluentes Ocupacionais do Ar/urina , Cobalto/urina , Feminino , Intoxicação por Metais Pesados/sangue , Intoxicação por Metais Pesados/urina , Humanos , Masculino , Pessoa de Meia-Idade , Pele/metabolismo , Suécia
16.
Mediators Inflamm ; 2020: 8490908, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32256196

RESUMO

PURPOSE: To study the association between inhalation of particulate matter or quartz in Swedish iron foundries and the effects on NLRP3 inflammasome activation. METHODS: Particle exposure measurements were performed during an eight-hour work day for 85 foundry workers at three Swedish iron foundries. Personal sampling was used for measurement of respirable quartz and dust and stationary measurements to obtain exposure measurements for inhalable dust and PM10. The NLRP3 inflammasome markers, interleukin- (IL-) 1ß and IL-18, and inhibitors IL-1 receptor antagonist (IL-1Ra) and IL-18 binding protein (IL-18BP) were measured in plasma. Inflammasome activation was measured by caspase-1 enzymatic activity in monocytes in whole blood by flow cytometry, and expression of inflammasome-related genes was quantified using real-time PCR. Multiple linear regression analysis was used to investigate associations between PM exposures and inflammatory markers. Sex, age, smoking, current infection, BMI, and single nucleotide polymorphism in the inflammasome regulating genes CARD8 (C10X) and NLRP3 (Q705K) were included as covariates. RESULTS: The average exposure levels of respirable dust and quartz were 0.85 and 0.052 mg/m3, respectively. A significant exposure-response was found for respirable dust and IL-18 and for inhalable dust and IL-1Ra. Whole blood, drawn from study participants, was stimulated ex vivo with inflammasome priming stimuli LPS or Pam3CSK4, resulting in a 47% and 49% increase in caspase-1 enzymatic activity in monocytes. This increase in caspase-1 activity was significantly attenuated in the higher exposure groups for most PM exposure measures. CONCLUSIONS: The results indicate that exposure levels of PM in the iron foundry environment can affect the NLRP3 inflammasome and systemic inflammation.


Assuntos
Inflamassomos/sangue , Inflamassomos/metabolismo , Proteína Antagonista do Receptor de Interleucina 1/metabolismo , Interleucina-18/metabolismo , Interleucina-1beta/metabolismo , Proteína 3 que Contém Domínio de Pirina da Família NLR/metabolismo , Adulto , Proteínas Adaptadoras de Sinalização CARD/sangue , Proteínas Adaptadoras de Sinalização CARD/metabolismo , Caspase 1/sangue , Caspase 1/metabolismo , Feminino , Humanos , Proteína Antagonista do Receptor de Interleucina 1/sangue , Interleucina-18/sangue , Interleucina-1beta/sangue , Masculino , Pessoa de Meia-Idade , Proteína 3 que Contém Domínio de Pirina da Família NLR/sangue , Proteínas de Neoplasias/sangue , Proteínas de Neoplasias/metabolismo , Polimorfismo de Nucleotídeo Único/genética
17.
PLoS One ; 14(11): e0224668, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31675355

RESUMO

PURPOSE: To study the relationship between respirable dust, quartz and chemical binders in Swedish iron foundries and respiratory symptoms, lung function (as forced expiratory volume FEV1 and vital capacity FVC), fraction of exhaled nitric oxide (FENO) and levels of club cell secretory protein 16 (CC16) and CRP. METHODS: Personal sampling of respirable dust and quartz was performed for 85 subjects in three Swedish iron foundries. Full shift sampling and examination were performed on the second or third day of a working week after a work free weekend, with additional sampling on the fourth or fifth day. Logistic, linear and mixed model analyses were performed including, gender, age, smoking, infections, sampling day, body mass index (BMI) and chemical binders as covariates. RESULTS: The adjusted average respirable quartz and dust concentrations were 0.038 and 0.66 mg/m3, respectively. Statistically significant increases in levels of CC16 were associated with exposure to chemical binders (p = 0.05; p = 0.01) in the regression analysis of quartz and respirable dust, respectively. Non-significant exposure-responses were identified for cumulative quartz and the symptoms asthma and breathlessness. For cumulative chemical years, non-significant exposure-response were observed for all but two symptoms. FENO also exhibited a non significant exposure-response for both quartz and respirable dust. No exposure-response was determined for FEV1 or FVC, CRP and respirable dust and quartz. CONCLUSIONS: Our findings suggest that early markers of pulmonary effect, such as increased levels of CC16 and FENO, are more strongly associated with chemical binder exposure than respirable quartz and dust in foundry environments.


Assuntos
Poeira/análise , Inflamação/etiologia , Exposição por Inalação/efeitos adversos , Metalurgia/estatística & dados numéricos , Exposição Ocupacional/efeitos adversos , Quartzo/efeitos adversos , Doenças Respiratórias/etiologia , Adulto , Biomarcadores/sangue , Proteína C-Reativa/análise , Feminino , Volume Expiratório Forçado/efeitos dos fármacos , Humanos , Inflamação/sangue , Exposição por Inalação/análise , Ferro , Masculino , Pessoa de Meia-Idade , Óxido Nítrico/metabolismo , Exposição Ocupacional/análise , Quartzo/análise , Suécia , Uteroglobina/sangue , Capacidade Vital/efeitos dos fármacos
18.
Int Arch Occup Environ Health ; 92(8): 1087-1098, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-31165309

RESUMO

PURPOSE: To study the relationship between inhalation of airborne particles and quartz in Swedish iron foundries and markers of inflammation and coagulation in blood. METHODS: Personal sampling of respirable dust and quartz was performed for 85 subjects in three Swedish iron foundries. Stationary measurements were used to study the concentrations of respirable dust and quartz, inhalable and total dust, PM10 and PM2.5, as well as the particle surface area and the particle number concentrations. Markers of inflammation, namely interleukins (IL-1ß, IL-6, IL-8, IL-10 and IL-12), C-reactive protein, and serum amyloid A (SAA) were measured in plasma or serum, together with markers of coagulation including fibrinogen, factor VIII (FVIII), von Willebrand factor and D-dimer. Complete sampling was performed on the second or third day of a working week after a work-free weekend, and follow-up samples were collected 2 days later. A mixed model analysis was performed including sex, age, smoking, infections, blood group, sampling day and BMI as covariates. RESULTS: The average 8-h time-weighted average air concentrations of respirable dust and quartz were 0.85 mg/m3 and 0.052 mg/m3, respectively. Participants in high-exposure groups with respect to some of the measured particle types exhibited significantly elevated levels of SAA, fibrinogen and FVIII. CONCLUSIONS: These observed relationships between particle exposure and inflammatory markers may indicate an increased risk of cardiovascular disease among foundry workers with high particulate exposure.


Assuntos
Poluentes Ocupacionais do Ar/análise , Poeira/análise , Exposição por Inalação/estatística & dados numéricos , Exposição Ocupacional/estatística & dados numéricos , Quartzo/análise , Biomarcadores/sangue , Proteína C-Reativa/metabolismo , Monitoramento Ambiental , Humanos , Ferro , Metalurgia , Proteína Amiloide A Sérica/metabolismo , Dióxido de Silício , Suécia
19.
Clin Nurs Res ; 28(3): 340-355, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-29986617

RESUMO

This study aimed to investigate heart failure patients' perceptions of received and wanted information and to identify differences regarding received and wanted information in relation to sociodemographic variables. A cross-sectional descriptive design was used. Patients with heart failure ( n = 192) were recruited from six primary health care centers in Sweden. Data were collected by a postal questionnaire. A majority of the respondents had received information about the condition and the medication. Within primary health care, most respondents had been informed about medication. The respondents wanted more information about continued care and treatment, medication, and the condition. There were significant differences between sociodemographic groups concerning what information they wanted. Clinical nurses can support patients with heart failure by using evidence-based methods that strengthen the patients' self-efficacy and by individualized information that increases patients' knowledge and improves their self-care behaviors. Future studies are needed to identify informational needs of particular fragile groups of patients.


Assuntos
Insuficiência Cardíaca/psicologia , Disseminação de Informação , Autocuidado , Autoeficácia , Idoso de 80 Anos ou mais , Estudos Transversais , Feminino , Humanos , Masculino , Inquéritos e Questionários , Suécia
20.
BMC Public Health ; 18(1): 1369, 2018 Dec 12.
Artigo em Inglês | MEDLINE | ID: mdl-30541531

RESUMO

BACKGROUND: Undocumented migrants (UMs) in Europe constitute a heterogeneous group. They are typically in a vulnerable and marginalised situation, since most of them have exhausted their options for gaining asylum and protection from war and persecution, many are traumatised and fear disclosure and deportation, and they typically lack basic social security. The present study investigates living conditions, access to human rights and mental health of UMs living in Sweden. METHODS: A cross-sectional study with adult UMs was performed in the three largest cities in Sweden in 2014-2016. Sampling was done via informal networks. A socioeconomic questionnaire was constructed, and psychiatric symptoms were screened for using Beck's Depression Inventory II, Beck's Anxiety Inventory and the PTSD Checklist (PCL) for civilians. Trained field workers conducted the interviews. Descriptive statistics, chi-square tests and logistic regression models were used. RESULTS: A total number of 104 individuals participated. Preliminary findings show that 68% of respondents were suffering from either moderate or severe anxiety, 71% from either moderate or severe depression and 58% from PTSD. No statistically significant gender differences occurred, but age was statistically significant in relation to anxiety and depression. The majority feared returning to their country of origin, for political reasons, due to war in progress there and/or because they belonged to a minority and feared harassment. Almost all had an unstable housing situation and were often forced to move. Fifty-seven percent experienced food insecurity. CONCLUSION: The psychosocial situation among UMs in Sweden, in addition to insecure living conditions without a guarantee of basic needs being met is stressful, and many UMs live in constant fear of disclosure and deportation, all of which has a detrimental effect of the mental health. It is important to understand both associated risk factors for ill-health and coping strategies in this vulnerable population in order try to reduce ongoing stress.


Assuntos
Transtornos Mentais/epidemiologia , Imigrantes Indocumentados/psicologia , Adolescente , Adulto , Estudos Transversais , Feminino , Humanos , Masculino , Fatores de Risco , Fatores Socioeconômicos , Inquéritos e Questionários , Suécia/epidemiologia , Imigrantes Indocumentados/estatística & dados numéricos , Adulto Jovem
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