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Annaç Asildağ M, Sari G, Koyuncu A, Şimşek C. Manganism due to occupational welding fume exposure: a case report. Ind Health 2024:2023-0171. [PMID: 38631849 DOI: 10.2486/indhealth.2023-0171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Occupational exposure to manganese (Mn) primarily occurs through the inhalation of manganese-containing fumes and dust, with welding environments being significant sources of such exposure. Elevated levels of Mn in welding fumes can lead to a neurological syndrome known as manganism. A 28-yr-old male welder with 14 yr of experience, is presenting with complaints of forgetfulness, reasoning disorder, and decreased mental functions persisting for 10 yr. Three months ago, when he started working at the new workplace, he underwent employment screening conducted by the workplace physician. During this screening process, the physician identified a high whole blood Mn level of 25.9 µg/l. The diagnosis of manganism in this patient was established based on exposure to Mn and its compounds, high levels of Mn detected in the whole blood, hyperactive patellar reflexes observed during the physical examination, cranial Magnetic Resonance Imaging (MRI) findings consistent with manganism and complaints reported by the patient that are characteristic of manganism. In this report, the aim is to emphasize the significance of taking a comprehensive occupational history and to draw attention the potential health hazards associated with Mn and its compounds.
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Affiliation(s)
- Mediha Annaç Asildağ
- Occupational Diseases Department, University of Health Sciences Ankara Atatürk Sanatoryum Training and Research Hospital, Turkey
| | - Gülden Sari
- Occupational Diseases Department, University of Health Sciences Ankara Atatürk Sanatoryum Training and Research Hospital, Turkey
| | - Adem Koyuncu
- Occupational Diseases Department, University of Health Sciences Ankara Atatürk Sanatoryum Training and Research Hospital, Turkey
| | - Ceprail Şimşek
- Occupational Diseases Department, University of Health Sciences Ankara Atatürk Sanatoryum Training and Research Hospital, Turkey
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Acun Pinar M, Sari G, Koyuncu A, Şimşek C. Factors Affecting Development of Chronic Obstructive Pulmonary Disease in Pneumoconiosis Cases: A Cross-sectional Study Between 2017 and 2022 in Turkey. J Occup Environ Med 2023; 65:694-698. [PMID: 37193638 DOI: 10.1097/jom.0000000000002886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
OBJECTIVES It was aimed to determine the factors affecting the development of chronic obstructive pulmonary disease (COPD) in pneumoconiosis cases. METHODS Pneumoconiosis cases were divided into two groups as those with only pneumoconiosis and those with coexistence of pneumoconiosis and COPD. Demographic data, smoking habits, pulmonary function test, radiological findings, and occupational risk factors of the cases were compared. RESULTS Chronic obstructive pulmonary disease was detected in 134 of 465 pneumoconiosis cases (28.8%) included in the study. It was determined that patients who developed COPD were statistically significantly older, had longer exposure duration, had lower forced expiratory volume in 1 second, forced vital capacity, and forced expiratory volume in 1 second/forced vital capacity values, and had more pulmonary symptoms. Chronic obstructive pulmonary disease development was more common in sandblasting workers, dental technicians, and miners than in other occupations. CONCLUSION It has been shown that the risk of developing COPD is high in cases of pneumoconiosis, independent of smoking, especially in certain occupational groups.
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Affiliation(s)
- Merve Acun Pinar
- From the Ankara Atatürk Sanatorium Training and Research Hospital, Occupational Diseases Clinic, Ankara, Turkey
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Akkale T, Sarı G, Şimşek C. Occupational hypersensitivity pneumonia. Tuberk Toraks 2023; 71:94-104. [PMID: 36912413 PMCID: PMC10854060 DOI: 10.5578/tt.20239911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023] Open
Abstract
Hypersensitivity pneumonitis (HP) is an immunological lung disease that affects individuals who are sensitive and susceptible to occupational and environmental exposures. While clinical and radiological findings may resemble other interstitial lung diseases, identifying the causative agents can aid in the differential diagnosis. However, this can be challenging and may result in delayed diagnosis and poor prognosis. A gold standard test for diagnosis is currently unavailable, and therefore, a multidisciplinary approach involving a clinician, radiologist, and pathologist is necessary. Avoiding exposure is the first step in treatment, with immunosuppressive therapeutics also being used. Antifibrotic agents show promise for future treatment approaches. Despite recent advancements in data and guidelines, knowledge about managing occupational HP remains limited. This review provides a summary of the epidemiological, clinical, and radiological findings, as well as diagnostic and treatment principles of occupational HP based on current literature.
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Affiliation(s)
- Tuğba Akkale
- Clinic of Occupational Medicine, Atatürk Chest Diseases and Thoracic Surgery Training and Research Hospital, Ankara, Türkiye
| | - Gülden Sarı
- Clinic of Occupational Medicine, Atatürk Chest Diseases and Thoracic Surgery Training and Research Hospital, Ankara, Türkiye
| | - Ceprail Şimşek
- Clinic of Occupational Medicine, Atatürk Chest Diseases and Thoracic Surgery Training and Research Hospital, Ankara, Türkiye
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Koyuncu A, Sarı G, Şimşek C. Evaluation of cases with hypersensitivity pneumonia: 10 year analysis. Clin Respir J 2023; 17:329-338. [PMID: 36780898 PMCID: PMC10113273 DOI: 10.1111/crj.13598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 01/26/2023] [Accepted: 02/03/2023] [Indexed: 02/15/2023]
Abstract
INTRODUCTION The aim of this study was to examine the clinical features of hypersensitivity pneumonia (HP) cases, diagnostic methods, and related conditions in our hospital, which is a reference clinic in Turkey for chest disease. METHODS The population of this retrospective cross-sectional study consists of all hypersensitivity pneumonia patients followed in a tertiary hospital between 2010 and 2019. The data of 78 patients were included in the analysis. Data were grouped by source of exposure (occupational, environmental, and cryptogenic) by examining the files of the patients. RESULTS Occupational risk factors were detected in 29 (37.2%) of the cases, environmental risk factors were found in 24 (30.8%) cases, neither occupational nor environmental risk factors were detected in 25 (32%) cases, and they were evaluated as cryptogenic. The time from the onset of symptoms to diagnosis was 15.8 ± 26.6 months. The time from the onset of symptoms to diagnosis was found to be longer in the group with occupational risk factors compared with the other groups and was statistically significant (0.044). CONCLUSION HP is a immune-mediated interstitial lung disease induced by repeated exposure to environmental and occupational antigens. Etiological agent can be detected in HP patients by detailed questioning of occupational and environmental exposure that may be associated with the onset of symptoms in cases with suspected HP.
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Affiliation(s)
- Adem Koyuncu
- Department of Occupational Diseases, Ankara Atatürk Sanatoryum Education and Research Hospital, Health Science University, Ankara, Turkey
| | - Gülden Sarı
- Department of Occupational Diseases, Ankara Atatürk Sanatoryum Education and Research Hospital, Health Science University, Ankara, Turkey
| | - Ceprail Şimşek
- Department of Occupational Diseases, Ankara Atatürk Sanatoryum Education and Research Hospital, Health Science University, Ankara, Turkey
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Demir AU, Şimşek C, Hatman EA, Sahan C, Ergor A, Demiral Y. Pitfalls of using the ILO classification for silicosis compensation claims. Occup Med (Lond) 2022; 72:495. [PMID: 36256839 DOI: 10.1093/occmed/kqac047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023] Open
Affiliation(s)
- Ahmet U Demir
- Department of Chest Diseases, Department of Occupational Medicine, University Medical Faculty, Ankara, Turkey
| | - Ceprail Şimşek
- Chest Diseases and Thoracic Surgery Training and Research Hospital, Department of Chest Diseases, Ankara, Turkey
- Department of Occupational Medicine, Director, Ankara, Turkey
| | - Elif Altundas Hatman
- Chest Diseases and Thoracic Surgery Training and Research Hospital, Department of Occupational Medicine, Istanbul, Turkey
| | - Ceyda Sahan
- Department of Public Health, Department of Occupational Medicine, University Medical Faculty, Izmir, Turkey
- Occupational Diseases Specialısts Association, Secretary General, University Medical Faculty, Izmir, Turkey
| | - Alp Ergor
- Department of Public Health, Department of Occupational Medicine, University Medical Faculty, Izmir, Turkey
- Occupational Health and Safety Unit, University Medical Faculty, Izmir, Turkey
| | - Yucel Demiral
- Department of Public Health, University Medical Faculty, Izmir, Turkey
- Department of Occupational Medicine, University Medical Faculty, Izmir, Turkey
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Joyal-Desmarais K, Stojanovic J, Kennedy EB, Enticott JC, Boucher VG, Vo H, Košir U, Lavoie KL, Bacon SL, Granana N, Losada AV, Boyle J, Shawon SR, Dawadi S, Teede H, Kautzky-Willer A, Dash A, Cornelio ME, Karsten M, Matte DL, Reichert F, Abou-Setta A, Aaron S, Alberga A, Barnett T, Barone S, Bélanger-Gravel A, Bernard S, Birch LM, Bondy S, Booij L, Da Silva RB, Bourbeau J, Burns R, Campbell T, Carlson L, Charbonneau É, Corace K, Drouin O, Ducharme F, Farhadloo M, Falk C, Fleet R, Fournier M, Garber G, Gauvin L, Gordon J, Grad R, Gupta S, Hellemans K, Herba C, Hwang H, Jedwab J, Kakinami L, Kim S, Liu J, Norris C, Pelaez S, Pilote L, Poirier P, Presseau J, Puterman E, Rash J, Ribeiro PAB, Sadatsafavi M, Chaudhuri PS, Suarthana E, Tse S, Vallis M, Caceres NB, Ortiz M, Repetto PB, Lemos-Hoyos M, Kassianos A, Rod NH, Beraneck M, Ninot G, Ditzen B, Kubiak T, Codjoe S, Kpobi L, Laar A, Skoura T, Francis DL, Devi NK, Meitei S, Nethan ST, Pinto L, Saraswathy KN, Tumu D, Lestari S, Wangge G, Byrne M, Durand H, McSharry J, Meade O, Molloy G, Noone C, Levine H, Zaidman-Zait A, Boccia S, Hoxhaj I, Paduano S, Raparelli V, Zaçe D, Aburub A, Akunga D, Ayah R, Barasa C, Godia PM, Kimani-Murage EW, Mutuku N, Mwoma T, Naanyu V, Nyamari J, Oburu H, Olenja J, Ongore D, Ziraba A, Bandawe C, Yim L, Ajuwon A, Shar NA, Usmani BA, Martínez RMB, Creed-Kanashiro H, Simão P, Rutayisire PC, Bari AZ, Vojvodic K, Nagyova I, Bantjes J, Barnes B, Coetzee B, Khagee A, Mothiba T, Roomaney R, Swartz L, Cho J, Lee MG, Berman A, Stattin NS, Fischer S, Hu D, Kara Y, Şimşek C, Üzmezoğlu B, Isunju JB, Mugisha J, Byrne-Davis L, Griffiths P, Hart J, Johnson W, Michie S, Paine N, Petherick E, Sherar L, Bilder RM, Burg M, Czajkowski S, Freedland K, Gorin SS, Holman A, Lee J, Lopez G, Naar S, Okun M, Powell L, Pressman S, Revenson T, Ruiz J, Sivaram S, Thrul J, Trudel-Fitzgerald C, Yohannes A, Navani R, Ranakombu K, Neto DH, Ben-Porat T, Dragomir A, Gagnon-Hébert A, Gemme C, Jamil M, Käfer LM, Vieira AM, Tasbih T, Woods R, Yousefi R, Roslyakova T, Priesterroth L, Edelstein S, Snir R, Uri Y, Alyami M, Sanuade C, Crescenzi O, Warkentin K, Grinko K, Angne L, Jain J, Mathur N, Mithe A, Nethan S. How well do covariates perform when adjusting for sampling bias in online COVID-19 research? Insights from multiverse analyses. Eur J Epidemiol 2022; 37:1233-1250. [PMID: 36335560 PMCID: PMC9638233 DOI: 10.1007/s10654-022-00932-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 10/06/2022] [Indexed: 11/07/2022]
Abstract
COVID-19 research has relied heavily on convenience-based samples, which-though often necessary-are susceptible to important sampling biases. We begin with a theoretical overview and introduction to the dynamics that underlie sampling bias. We then empirically examine sampling bias in online COVID-19 surveys and evaluate the degree to which common statistical adjustments for demographic covariates successfully attenuate such bias. This registered study analysed responses to identical questions from three convenience and three largely representative samples (total N = 13,731) collected online in Canada within the International COVID-19 Awareness and Responses Evaluation Study ( www.icarestudy.com ). We compared samples on 11 behavioural and psychological outcomes (e.g., adherence to COVID-19 prevention measures, vaccine intentions) across three time points and employed multiverse-style analyses to examine how 512 combinations of demographic covariates (e.g., sex, age, education, income, ethnicity) impacted sampling discrepancies on these outcomes. Significant discrepancies emerged between samples on 73% of outcomes. Participants in the convenience samples held more positive thoughts towards and engaged in more COVID-19 prevention behaviours. Covariates attenuated sampling differences in only 55% of cases and increased differences in 45%. No covariate performed reliably well. Our results suggest that online convenience samples may display more positive dispositions towards COVID-19 prevention behaviours being studied than would samples drawn using more representative means. Adjusting results for demographic covariates frequently increased rather than decreased bias, suggesting that researchers should be cautious when interpreting adjusted findings. Using multiverse-style analyses as extended sensitivity analyses is recommended.
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Affiliation(s)
- Keven Joyal-Desmarais
- Department of Health, Kinesiology and Applied Physiology, Concordia University, 7141 Sherbrooke Street West, Montreal, QC H4B 1R6 Canada ,Montreal Behavioural Medicine Centre, CIUSSS-NIM, Montreal, Canada
| | - Jovana Stojanovic
- Montreal Behavioural Medicine Centre, CIUSSS-NIM, Montreal, Canada ,Canadian Agency for Drugs and Technologies in Health, Ottawa, Canada
| | - Eric B. Kennedy
- Disaster and Emergency Management, York University, Toronto, Canada
| | - Joanne C. Enticott
- Department of General Practice, Monash University, Melbourne, Australia ,Monash Partners, Advanced Health Research and Translation Centre, Melbourne, Australia
| | | | - Hung Vo
- Austin Health, Victoria, Australia
| | - Urška Košir
- Department of Health, Kinesiology and Applied Physiology, Concordia University, 7141 Sherbrooke Street West, Montreal, QC H4B 1R6 Canada ,Montreal Behavioural Medicine Centre, CIUSSS-NIM, Montreal, Canada
| | - Kim L. Lavoie
- Montreal Behavioural Medicine Centre, CIUSSS-NIM, Montreal, Canada ,Département de Psychologie, Université du Québec à Montréal, Montreal, Canada
| | - Simon L. Bacon
- Department of Health, Kinesiology and Applied Physiology, Concordia University, 7141 Sherbrooke Street West, Montreal, QC H4B 1R6 Canada ,Montreal Behavioural Medicine Centre, CIUSSS-NIM, Montreal, Canada
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Bergshoeff EA, Lahnsteiner J, Romano L, Rosseel J, Şimşek C. A non-relativistic limit of NS-NS gravity. J High Energy Phys 2021; 2021:21. [PMID: 34103884 PMCID: PMC8174764 DOI: 10.1007/jhep06(2021)021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 05/13/2021] [Indexed: 06/12/2023]
Abstract
We discuss a particular non-relativistic limit of NS-NS gravity that can be taken at the level of the action and equations of motion, without imposing any geometric constraints by hand. This relies on the fact that terms that diverge in the limit and that come from the Vielbein in the Einstein-Hilbert term and from the kinetic term of the Kalb-Ramond two-form field cancel against each other. This cancelling of divergences is the target space analogue of a similar cancellation that takes place at the level of the string sigma model between the Vielbein in the kinetic term and the Kalb-Ramond field in the Wess-Zumino term. The limit of the equations of motion leads to one equation more than the limit of the action, due to the emergence of a local target space scale invariance in the limit. Some of the equations of motion can be solved by scale invariant geometric constraints. These constraints define a so-called Dilatation invariant String Newton-Cartan geometry.
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Affiliation(s)
- E. A. Bergshoeff
- Van Swinderen Institute, University of Groningen, Nijenborgh 4, Groningen, 9747 AG The Netherlands
| | - J. Lahnsteiner
- Van Swinderen Institute, University of Groningen, Nijenborgh 4, Groningen, 9747 AG The Netherlands
| | - L. Romano
- Van Swinderen Institute, University of Groningen, Nijenborgh 4, Groningen, 9747 AG The Netherlands
| | - J. Rosseel
- Faculty of Physics, University of Vienna, Boltzmanngasse 5, A-1090 Vienna, Austria
| | - C. Şimşek
- Van Swinderen Institute, University of Groningen, Nijenborgh 4, Groningen, 9747 AG The Netherlands
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Aykas A, Uslu A, Şimşek C. Mass media, online social network, and organ donation: old mistakes and new perspectives. Transplant Proc 2016; 47:1070-2. [PMID: 26036522 DOI: 10.1016/j.transproceed.2014.09.182] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2014] [Accepted: 09/29/2014] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Contrary to TV programs projecting awareness about organ donation in society, concrete evidence exists about adverse influence of negative broadcasts on organ donation rates. We sought to determine the effect of mass media on public opinion toward organ donation and the efficacy of public campaigns and novel social media attempts on donation rates. METHODS We conducted a systematic review of relevant literature and national campaign results. RESULTS Hoaxes about brain death and organ transplantation adversely affect organ donation rates in both Western and Eastern societies. Scientifically controversial and exaggerated press conferences and institutional advertisements create mistrust in doctors, thus reducing organ donation. The overall effect of public education campaigns in promoting organ donation is a temporary 5% gain. Increments in organ donation rates is expected with novel applications of social media (Facebook effect). CONCLUSION Communication, based on mutual trust, must be established between medicine and the media. Continuing education programs with regard to public awareness on organ donation should be conducted over social media.
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Affiliation(s)
- A Aykas
- Department of General Surgery and Organ Transplantation, Bozyaka Teaching Hospital, Izmir, Turkey
| | - A Uslu
- Department of General Surgery and Organ Transplantation, Bozyaka Teaching Hospital, Izmir, Turkey.
| | - C Şimşek
- Department of General Surgery and Organ Transplantation, Bozyaka Teaching Hospital, Izmir, Turkey
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