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Ramkissoon C, Gaskin S, Song Y, Pisaniello D, Zosky GR. From Engineered Stone Slab to Silicosis: A Synthesis of Exposure Science and Medical Evidence. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2024; 21:683. [PMID: 38928930 DOI: 10.3390/ijerph21060683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/23/2024] [Accepted: 05/23/2024] [Indexed: 06/28/2024]
Abstract
Engineered stone (ES) is a popular building product, due to its architectural versatility and generally lower cost. However, the fabrication of organic resin-based ES kitchen benchtops from slabs has been associated with alarming rates of silicosis among workers. In 2024, fifteen years after the first reported ES-related cases in the world, Australia became the first country to ban the use and importation of ES. A range of interacting factors are relevant for ES-associated silicosis, including ES material composition, characteristics of dust exposure and lung cell-particle response. In turn, these are influenced by consumer demand, work practices, particle size and chemistry, dust control measures, industry regulation and worker-related characteristics. This literature review provides an evidence synthesis using a narrative approach, with the themes of product, exposure and host. Exposure pathways and pathogenesis are explored. Apart from crystalline silica content, consideration is given to non-siliceous ES components such as resins and metals that may modify chemical interactions and disease risk. Preventive effort can be aligned with each theme and associated evidence.
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Affiliation(s)
- Chandnee Ramkissoon
- Adelaide Exposure Science and Health, School of Public Health, University of Adelaide, Adelaide, SA 5064, Australia
| | - Sharyn Gaskin
- Adelaide Exposure Science and Health, School of Public Health, University of Adelaide, Adelaide, SA 5064, Australia
| | - Yong Song
- Menzies Institute for Medical Research, College of Health and Medicine, University of Tasmania, Hobart, TAS 7000, Australia
| | - Dino Pisaniello
- Adelaide Exposure Science and Health, School of Public Health, University of Adelaide, Adelaide, SA 5064, Australia
| | - Graeme R Zosky
- Menzies Institute for Medical Research, College of Health and Medicine, University of Tasmania, Hobart, TAS 7000, Australia
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Sherekar P, Suke SG, Dhok A, Harode R, Mangrulkar S, Pingle S. Nano-enabled delivery of diosgenin and emodin ameliorates respirable silica dust-induced pulmonary fibrosis silicosis in rats. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 279:116483. [PMID: 38788565 DOI: 10.1016/j.ecoenv.2024.116483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 04/30/2024] [Accepted: 05/18/2024] [Indexed: 05/26/2024]
Abstract
Oxidative stress and inflammation play a fundamental role in the beginning and advancement of silicosis. Hence, questing active phytocompounds (APCs) with anti-oxidative and anti-inflammatory properties such as diosgenin (DG) and emodin (ED) can be a therapeutic intervention targeting silica-induced pulmonary inflammation and fibrosis. Hydrophobicity and low bioavailability are the barriers that restrict the therapeutic efficacy of DG and ED against pulmonary defects. Encapsulating these APCs in polymeric nanoparticles can overcome this limitation. The present study has thus explored the anti-inflammatory and anti-fibrotic effects of polylactic-co-glycolic acid (PLGA) nanoparticles (NPs) individually loaded with DG (DGn) or ED (EDn) and in combine DG+ED [(DG+ED)n] in respirable silica dust (RSD)-induced pulmonary fibrosis silicosis rat model. Our study found that individual and combined NPs revealed physiochemical characteristics appropriate for IV administration with sustained-drug release purposes. Physiological evaluations of RSD-induced silicosis rats suggested that no treatment could improve the body weight. Still, they reduced the lung coefficient by maintaining lung moisture. Only (DG+ED)n significantly cleared free lung silica. All interventions were found to attribute the increased per cent cell viability in BALF, reduce cytotoxicity via minimizing LDH levels, and balance the oxidant-antioxidant status in silicotic rats. The expression of inflammatory cytokines (TNF-α, IL-1β, IL-6, MCP-1, and TGF-β1) were efficiently down-regulated with NPs interventions compared to pure (DG+ED) treatment. All drug treatments significantly declined, the 8-HdG and HYP productions indicate that RSD-induced oxidative DNA damage and collagen deposition were successfully repaired. Moreover, histopathological investigations proposed that individual or combined drugs NPs interventions could decrease the fibrosis and alveolitis grades in RSD-induced silicosis rats. However, (DG+ED)n intervention significantly inhibited pulmonary fibrosis and alveolitis compared to pure (DG+ED) treatment. In conclusion, the RSD can induce oxidative stress and inflammation in rats, producing reactive oxygen species (ROS)-mediated cytotoxicity to pulmonary cells and leading to silicosis development. The IV administration of combined NP suppressed lung inflammation and collagen formation by maintaining oxidant-antioxidant status and effectively interrupting the fibrosis-silicosis progression. These results may be attributed to the improved bioavailability of DG and ED through their combined nano-encapsulation-mediated targeted drug delivery.
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Affiliation(s)
- Prasad Sherekar
- Department of Biotechnology, Priyadarshini Institute of Engineering and Technology, Priyadarshini Campus, Hingna Road, Nagpur, Maharashtra 440 019, India; Department of Biochemistry, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research (Deemed to be University), Wardha, Maharashtra 442 005, India
| | - Sanvidhan G Suke
- Department of Biotechnology, Priyadarshini Institute of Engineering and Technology, Priyadarshini Campus, Hingna Road, Nagpur, Maharashtra 440 019, India; Department of Biotechnology, Priyadarshini College of Engineering, Priyadarshini Campus, Hingna Road, Nagpur, Maharashtra 440 019, India.
| | - Archana Dhok
- Department of Biochemistry, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research (Deemed to be University), Wardha, Maharashtra 442 005, India
| | - Raunak Harode
- Department of Pharmacology, Priyadarshini J. L. College of Pharmacy, Electronic Zone Building, MIDC, Hingna Road, Nagpur, Maharashtra 440 016, India
| | - Shubhada Mangrulkar
- Department of Pharmacology, Priyadarshini J. L. College of Pharmacy, Electronic Zone Building, MIDC, Hingna Road, Nagpur, Maharashtra 440 016, India; Department of Pharmacology, Shrimati Kishoritai Bhoyar College of Pharmacy, New Kamptee, Nagpur, Maharashtra 441 002, India
| | - Shubhangi Pingle
- Regional Occupational Health Centre (Southern), ICMR Complex, Kannamangala PO, Bengaluru, Karnataka 562 110, India
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Hore-Lacy F, Gwini S, Glass DC, Dimitriadis C, Jimenez-Martin J, Hoy RF, Sim MR, Walker-Bone K, Fisher J. Psychometric properties of the Perceived Stress Scale (PSS-10) in silica-exposed workers from diverse cultural and linguistic backgrounds. BMC Psychiatry 2024; 24:181. [PMID: 38439053 PMCID: PMC10913222 DOI: 10.1186/s12888-024-05613-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 02/15/2024] [Indexed: 03/06/2024] Open
Abstract
BACKGROUND The Perceived Stress Scale (PSS-10) has been used in a range of occupational cohorts, but only recently in stone benchtop workers undergoing screening for silicosis. The aim of this study was to compare psychometric properties of the PSS-10 in stone benchtop workers amongst those born overseas or who used an interpreter. METHODS Stone benchtop workers in Melbourne, Australia completed the PSS-10 as part of their occupational screening for silicosis. Internal consistency was assessed with Cronbach's α for the total score and the positive and negative subscales. Validity was assessed using confirmatory factor analysis (CFA). Analysis was performed for the total group and for subgroups according to sex, interpreter use, overseas-born, and language spoken at home. RESULTS The results of 682 workers with complete PSS-10 scores were included in analysis. Most participants were male (93%), with mean age 36.9 years (SD 11.4), with just over half (51.6%) born in Australia, 10.1% using an interpreter, and 17.5% using a language other than English at home. Cronbach's α for the overall group (α = 0.878) suggested good internal consistency. DISCUSSION CFA analysis for validity testing suggested PSS-10 performance was good for both sexes, moderate for country of birth and language spoken at home categories, but poorer for those who used an interpreter. Whilst professional interpreters provide a range of benefits in the clinical setting, the use of translated and validated instruments are important, particularly in cohorts with large numbers of migrant workers. CONCLUSION This study describes the psychometric properties of the PSS-10 in a population of stone benchtop workers, with good internal consistency, and mixed performance from validity testing across various subgroups.
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Affiliation(s)
- Fiona Hore-Lacy
- Monash University, Melbourne, Australia.
- Alfred Health, Melbourne, Australia.
| | | | | | | | | | - Ryan F Hoy
- Monash University, Melbourne, Australia
- Alfred Health, Melbourne, Australia
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Shin J, Hammer M, Cooley ME, Cooper BA, Paul SM, Cartwright F, Kober KM, Conley YP, Levine JD, Miaskowski C. Common and distinct risk factors that influence more severe and distressing shortness of breath profiles in oncology outpatients. Cancer Med 2024; 13:e7013. [PMID: 38400684 PMCID: PMC10891479 DOI: 10.1002/cam4.7013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 01/05/2024] [Accepted: 01/31/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND Shortness of breath occurs in 10%-70% of oncology patients. Very little is known about interindividual variability in its severity and distress and associated risk factors. Using latent profile analyses (LPAs), purpose was to identify subgroups of patients with distinct severity and distress profiles for shortness of breath as single symptom dimensions. In addition, a joint LPA was done using patients' severity AND distress ratings. For each of the three LPAs, differences among the shortness of breath classes in demographic, clinical, symptom, stress, and resilience characteristics were evaluated. METHODS Patients completed ratings of severity and distress from shortness of breath a total of six times over two cycles of chemotherapy. All of the other measures were completed at enrollment (i.e., prior to the second or third cycle of chemotherapy). Separate LPAs were done using ratings of severity and distress, as well as a joint analysis using severity AND distress ratings. Differences among the latent classes were evaluated using parametric and nonparametric tests. RESULTS For severity, two classes were identified (Slight to Moderate [91.6%] and Moderate to Severe [8.4%]). For distress, two classes were identified (A Little Bit to Somewhat [83.9%] and Somewhat to Quite a Bit [16.1%]). For the joint LPA, two classes were identified (Lower Severity and Distress [79.9%] and Higher Severity and Distress [20.1%]). While distinct risk factors were associated with each of the LPAs, across the three LPAs, the common risk factors associated with membership in the worse class included: a past or current history of smoking, poorer functional status, and higher comorbidity burden. In addition, these patients had a higher symptom burden and higher levels of cancer-specific stress. CONCLUSIONS Clinicians can use the information provided in this study to identify high-risk patients and develop individualized interventions.
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Affiliation(s)
- Joosun Shin
- Dana‐Farber Cancer InstituteBostonMassachusettsUSA
| | | | | | - Bruce A. Cooper
- School of NursingUniversity of CaliforniaSan FranciscoCaliforniaUSA
| | - Steven M. Paul
- School of NursingUniversity of CaliforniaSan FranciscoCaliforniaUSA
| | | | - Kord M. Kober
- School of NursingUniversity of CaliforniaSan FranciscoCaliforniaUSA
| | - Yvette P. Conley
- School of NursingUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Jon D. Levine
- School of MedicineUniversity of CaliforniaSan FranciscoCaliforniaUSA
| | - Christine Miaskowski
- School of NursingUniversity of CaliforniaSan FranciscoCaliforniaUSA
- School of MedicineUniversity of CaliforniaSan FranciscoCaliforniaUSA
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Abstract
Interstitial lung disease (ILD), a clinically recognized group of diseases resulting in pulmonary fibrosis, affects up to 200 individuals per 100,000 in the United States. Sarcoidosis has a wide range of clinical manifestations including pulmonary fibrosis. Health disparities are prevalent in both ILD and sarcoidosis around socioeconomic status, race, gender, and geographic location. This review outlines the known health disparities, discusses possible determinants of disparities, and outlines a path to achieve equity in ILD and sarcoidosis.
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Affiliation(s)
- Michelle Sharp
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins School of Medicine, 5501 Hopkins Bayview Circle, Baltimore, MD 21224, USA.
| | - Ali M Mustafa
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins School of Medicine, 5501 Hopkins Bayview Circle, Baltimore, MD 21224, USA
| | - Naima Farah
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Virginia, University of Virginia Pulmonary & Critical Care, 1215 Lee Street, 2nd Floor, Charlottesville, VA 22903, USA
| | - Catherine A Bonham
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Virginia, University of Virginia Pulmonary & Critical Care, 1215 Lee Street, 2nd Floor, Charlottesville, VA 22903, USA
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Hoy RF. Occupational Lung Health: A global problem requiring local awareness. Respirology 2022; 27:385-386. [PMID: 35474625 DOI: 10.1111/resp.14270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 04/03/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Ryan F Hoy
- School of Public Health and Preventive Medicine, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Victoria, Australia.,Department of Respiratory Medicine, The Alfred Hospital, Prahran, Victoria, Australia
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