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Halimehjani AZ, Dehghan F, Tafakori V, Amini E, Hooshmand SE, Nosood YL. Synthesis of novel antibacterial and antifungal dithiocarbamate-containing piperazine derivatives via re-engineering multicomponent approach. Heliyon 2022; 8:e09564. [PMID: 35669544 PMCID: PMC9163505 DOI: 10.1016/j.heliyon.2022.e09564] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/27/2022] [Accepted: 05/25/2022] [Indexed: 11/21/2022] Open
Abstract
A metal-free multicomponent synthetic route for the diverse preparation of dithiocarbamate-containing piperazine derivatives was developed through the C-N bond cleavage of DABCO ring. This multicomponent re-engineering approach proceeds via the reaction of amines, CS2 and DABCO salts in one pot. Various DABCO salts and secondary amines are tolerated well in this protocol to afford a broad spectrum of dithiocarbamate-containing piperazines in good to high yields. Then, the selected compounds have been deployed against some critical types of bacteria and fungi. A certain number of synthesized compounds revealed not only appropriate antibacterial activity as investigated by disc fusion and minimum inhibitory concentration methods against bacteria (Gram-positive and Gram-negative), but also depicted good to excellent antifungal activity.
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Affiliation(s)
| | - Faezeh Dehghan
- Faculty of Chemistry, Kharazmi University, 49 Mofateh St., 15719-14911, Tehran, Iran
| | - Vida Tafakori
- Department of Cell and Molecular Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
| | - Elaheh Amini
- Department of Animal Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
| | - Seyyed Emad Hooshmand
- Department of Medical Nanotechnology, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
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Dehghan F, Mohammadi-Manesh H, Loghavi MM. Investigation of Lithium-Ion Diffusion in LiCoPO4 Cathode Material by Molecular Dynamics Simulation. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619050044] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Soori R, Ravasi A, Choobineh S, Motiee M, Sohrabi F, Baesi K, Dardashtipour E, Dehghan F. The response of insulin signaling proteins IRS1 and PTP-1B to endurance, HIIT and resistance training in rats with experimental diabetes. Sci Sports 2019. [DOI: 10.1016/j.scispo.2018.10.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Dehghan F, Khodaei F, Afshar L, Shojaei F, Poorhakimi E, Soori R, Fatolahi H, Azarbayjani M. Effect of competition on stress salivary biomarkers in elite and amateur female adolescent inline skaters. Sci Sports 2019. [DOI: 10.1016/j.scispo.2018.04.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Atashak S, Azizbeigi K, Azarbayjani MA, Stannard S, Dehghan F, Soori R. Changes of stress proteins and oxidative stress indices with progressive exercise training in elderly men. Sci Sports 2017. [DOI: 10.1016/j.scispo.2017.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Taft Yazd SN, Ayatizadeh F, Dehghan F, Machado S, Wegner M. Comparing the Effects of Drug Therapy, Perceptual Motor Training, and Both Combined on the Motor Skills of School-Aged Attention Deficit Hyperactivity Disorder Children. CNS Neurol Disord Drug Targets 2016; 14:1283-91. [PMID: 26556079 DOI: 10.2174/1871527315666151111123501] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Accepted: 11/01/2015] [Indexed: 11/22/2022]
Abstract
The purpose of this research was to compare the effects of drug therapy, perceptual motor training and a combination of drug therapy and perceptual motor training on gross and fine motor skills of 6 to 12 year-old Iranian attention deficit hyperactivity disorder children. Thirty-six attention deficit hyperactivity disorder children currently under treatment in three Iranian psychological-neurological clinics participated in this research study. Participants were sampled from the accessible population and randomly assigned to three experimental groups (n = 12 each). The Conners Parent Rating Scale was used to classify the children and the Bruininks-Oseretsky Test of Motor Proficiency was administered before and after a three month treatment/ training session. Participants in the first experimental group received drug therapy (including methylphenidate). In the second group participants took part in 18 sessions of perceptual-motor skill training for six consecutive weeks, and in the third group children received both interventions. The results indicated that interventions using perceptual-motor training alone or in combination with a drug therapy significantly improved both gross and fine motor skills over a period of six weeks. Participants in the drug-only group showed no improvement in motor performance.
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Affiliation(s)
| | | | | | | | - Mirko Wegner
- Institute of Sport Science,University of Bern, Fabrikstrasse 8, CH-3012 Bern, Switzerland.
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Khosravani M, Azarbayjani MA, Abolmaesoomi M, Yusof A, Zainal Abidin N, Rahimi E, Feizolahi F, Akbari M, Seyedjalali S, Dehghan F. Ginger extract and aerobic training reduces lipid profile in high-fat fed diet rats. Eur Rev Med Pharmacol Sci 2016; 20:1617-22. [PMID: 27160137] [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] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE Obesity, hyperglycemia and dyslipidemia, are major risk factors. However, natural therapies, dietary components, and physical activity may effect on these concerns. The aim of this study was to examine the effect of aerobic exercise and consumption of liquid ginger extract on lipid profile of Male rats with a high-fat fed diet. MATERIALS AND METHODS 32 rats were randomly divided into 4 groups: 1) aerobic exercise, 2) Ginger extract, 3) combined aerobic exercise and Ginger extract, and 4) the control. Subjects of the first three groups received ginger extract via gavage feeding of 250 mg/kg. The exercise program was 3 sessions per week on 3 different days over 4 weeks. Total cholesterol (TC), Triglyceride (TG), HDL and LDL were measured 24-h before the first session and 24-h after the final training session. RESULTS The concentration of TG in the control group was significantly higher than other groups. In addition, the mean concentration of TG in the aerobic exercise group was significantly lower than Ginger extract group but there was no significant difference as compared to combined aerobic exercise and ginger extract group. The combination of aerobic exercise and ginger consumption significantly reduced the TG level compared to ginger group. TC and LDL concentrations were significantly decreased in all groups compare to control. The combination of aerobic exercise and ginger extract feeding caused a significant increase in HDL levels. CONCLUSIONS The finding of this study suggests that the combination of aerobic exercise and liquid ginger extract consumption might be an effective method of reducing lipid profiles, which will reduce the risk of cardiovascular diseases caused by high-fat diets.
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Affiliation(s)
- M Khosravani
- Department of Exercise Physiology, Islamic Azad University, Shiraz Branch, Shiraz, Iran.
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Seyedmehdi SM, Dehghan F, Ghaffari M, Attarchi M, Khansari B, Heidari B, Yazdanparast T, Norouzi Javidan A, Emami Razavi SH. Effect of General Health Status on Chronicity of Low Back Pain in Industrial Workers. Acta Med Iran 2016; 54:211-217. [PMID: 27107527] [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] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/25/2016] [Indexed: 06/05/2023] Open
Abstract
Recognizing patients at a higher risk of developing chronic low back pain (LBP) is important in industrial medicine. This study aimed to assess the power and quality of General Health Questionnaire (GHQ) for prediction of the odds of chronicity of acute LBP. This study was conducted on industrial workers. All subjects with acute LBP who met the inclusion criteria were enrolled. Demographic characteristics, occupational, physical, and mental parameters and the general health status of subjects were evaluated; they were followed up for developing chronic LBP for one year. Cigarette smoking, high body mass index, job stress, physical load and high GHQ scores were found to be the risk factors for the progression of acute LBP to chronic LBP (P<0.05). Standing position while working, age, work experience, exercise, level of education, weekly work hours and shift work were not the risk factors for chronic LBP (P>0.05). High GHQ score can be a risk factor for progression of acute LBP to chronic LBP. The GHQ in combination with the Job Content Questionnaire can be used as a quick and simple screening tool for detection of subjects at high risk of chronic LBP when evaluating acute LBP in an occupational setting.
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Affiliation(s)
- Seyed Mohammad Seyedmehdi
- Chronic Respiratory Diseases Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Faezeh Dehghan
- Department of Occupational Medicine, School of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Mostafa Ghaffari
- Brain and Spinal Cord Injury Research Center (BASIR), Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran. AND Department of Occupational Medicine, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mirsaeed Attarchi
- Department of Forensic Medicine, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Bahareh Khansari
- Department of Occupational Medicine, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Bijan Heidari
- Department of Orthopedic, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Taraneh Yazdanparast
- Telemedicine Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abbas Norouzi Javidan
- Brain and Spinal Cord Injury Research Center (BASIR), Neuroscience institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Hassan Emami Razavi
- Brain and Spinal Cord Injury Research Center (BASIR), Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
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Eslami V, Dehghan F, Rahimi-Movaghar V. Dimensions of Quality of Life in Spinal Cord Injured Veterans of Iran: a Qualitative Study. Acta Med Iran 2015; 53:753-763. [PMID: 26749232] [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] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
Abstract
The purpose of this study was to shed light on the identification of themes and sub-themes of the quality of life (QOL) in Iranian veterans with spinal cord injury (SCI). Studies have reported decreased QOL in SCI patients which encompass all aspects of their life. Little is known about QOL in SCI veterans from Iran. The aim of this qualitative study was to identify related aspects of such patients through in-depth patient interviews. The present study was a qualitative study of content analysis. Sampling took place in the Veterans Department of Khatam-Al-Anbia Hospital and was objective focused in accordance with qualitative studies. The participants were 11 SCI veterans and 4 veteran spouses. The data was collected by means of in-depth interviews and the use of the constant comparison method. The five themes of QOL included social, economic, cultural, medical, and environmental resulted from 7530 primary codes. We noted 29 QOL sub-themes. This article addresses different dimensions of QOL for SCI veterans. The current study suggests that the main aspects that should be evaluated in SCI veterans are the social, economic, cultural, medical, and environmental issues which affect their QOL. Moreover, participants put the most weight on their financial situation.
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Affiliation(s)
- Vahid Eslami
- Department of Neurology, Albert Einstein College of Medicine, New York, USA. AND Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Faezeh Dehghan
- Department of Occupational Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Vafa Rahimi-Movaghar
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran. AND Department of Neurosurgery, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran. AND Research Centre for Neural Repair, University of Tehran, Tehran, Iran
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Attarchi M, Dehghan F, Yazdanparast T, Mohammadi S, Golchin M, Sadeghi Z, Moafi M, Seyed Mehdi SM. Occupational asthma in a cable manufacturing company. Iran Red Crescent Med J 2014; 16:e9105. [PMID: 25558389 PMCID: PMC4270639 DOI: 10.5812/ircmj.9105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Revised: 10/07/2013] [Accepted: 08/31/2014] [Indexed: 11/17/2022]
Abstract
Background: During the past decade, incidence of asthma has increased, which might have been due to environmental exposures. Objectives: Considering the expansion of cable manufacturing industry in Iran, the present study was conducted to evaluate the prevalence of occupational asthma in a cable manufacturing company in Iran as well as its related factors. Patients and Methods: This study was conducted on employees of a cable manufacturing company in Yazd, Iran, in 2012. The workers were divided into two groups of exposure (to toluene diisocyanate, polyvinyl chloride, polyethylene or polypropylene) and without exposure. Diagnosis of occupational asthma was made based on the subjects’ medical history, spirometry and peak flowmetry, and its frequency was compared between the two groups. Results: The overall prevalence of occupational asthma was 9.7%. This rate was 13.8% in the exposed group. Logistic regression analysis showed that even after adjustment for confounding factors, a significant correlation existed between the frequency of occupational asthma and exposure to the produced dust particles (P < 0.05). In addition, age, work experience, body mass index, cigarette smoking and shift work had significant correlations with the prevalence of occupational asthma (P < 0.05). Conclusions: Considering the high prevalence of occupational asthma among cable manufacturing company workers in Iran, this issue needs to be addressed immediately in addition to reduction of exposure among subjects. Reduction in work shift duration, implementation of tobacco control and cessation programs for the personnel, and performing spirometry tests and respiratory examinations in shorter periods may be among effective measures for reducing the incidence of occupational asthma in this industry.
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Affiliation(s)
- Mirsaeed Attarchi
- Department of Occupational Medicine, School of Medicine, Tehran University of Medical Sciences, Tehran, IR Iran
| | - Faezeh Dehghan
- Department of Occupational Medicine, School of Medicine, AJA University of Medical Sciences, Tehran, IR Iran
| | - Taraneh Yazdanparast
- Research Center of Chronic Respiratory Disease, National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran
| | - Saber Mohammadi
- Department of Occupational Medicine, School of Medicine, Tehran University of Medical Sciences, Tehran, IR Iran
| | - Mahdie Golchin
- Department of Occupational Medicine, School of Medicine, Tehran University of Medical Sciences, Tehran, IR Iran
| | - Zargham Sadeghi
- Research Center of Work and Environment, Petroleum Industry Health Organization (PIHO), Tehran, IR Iran
| | - Masoud Moafi
- Department of Occupational Medicine, School of Medicine, Tehran University of Medical Sciences, Tehran, IR Iran
| | - Seyed Mohammad Seyed Mehdi
- Research Center of Chronic Respiratory Disease, National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran
- Corresponding Author: Seyed Mohammad Seyed Mehdi, Research Center of Chronic Respiratory Disease, National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran. Tel: +98-217123000, Fax: +98-2126109484,, E-mail:
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Seyedmehdi SM, Masjedi MR, Dehghan F, Roozbahani R, Sadeghi Z, Bahadori B, Attarchi M. Asthma and body mass index in occupational setting. Med J Islam Repub Iran 2014; 28:62. [PMID: 25414839 PMCID: PMC4238462] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Accepted: 12/03/2013] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND Asthma is the most common respiratory disease with an increasing prevalence. On the other hand, obesity is also a challenging disease compromising health in human communities. This study sought to assess the correlation of asthma and body mass index (BMI) in occupational setting. METHODS This study was conducted in a cable manufacturing company in 2012. A total of 551 workers from the production (exposed group) and non-production (unexposed group) units were studied. A questionnaire specifically designed for this purpose was filled out for study subjects and then all workers with respiratory symptoms suggestive of asthma thoroughly examined by a physician and medical history was taken from them. Complementary diagnostic tests were also carried out. RESULTS A total of 11.6% of our understudy subjects had asthma. The prevalence of asthma in exposed subjects with BMI≥25 kg/m(2) was found to be significantly higher than in exposed workers with BMI<25 kg/m(2) (p<0.01). However, no significant differences existed in prevalence of asthma between the two subgroups of BMI≥25 kg/m(2) and BMI<25 kg/m(2) in the unexposed group (p>0.05). After adjusting for confounding factors significant associations were observed between BMI and asthma at cut points of 30 kg/m(2) and 25 kg/m(2) (OR: 8.53 and 2.41, respectively). CONCLUSION Our study results showed that prevalence of asthma might be higher in workers with higher BMI who are exposed to occupational asthmogens. This finding highlights the necessity of offering weight loss recommendations in periodic examinations to workers with exposure to occupational asthmogens.
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Affiliation(s)
- Seyed Mohammad Seyedmehdi
- 1. Assistant Professor of Occupational Medicine, Chronic Respiratory Diseases Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mohammad Reza Masjedi
- 2. Professor of Pulmonology, Telemedicine Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Faezeh Dehghan
- 3. Assistant Professor of Occupational Medicine ,Occupational Medicine Department, AJA University of Medical Sciences, Tehran, Iran.
| | - Rahim Roozbahani
- 4. MSc, Clinical Tuberculosis and Epidemiology Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Zargham Sadeghi
- 5. Occupational Medicine Specialist, Occupational Medicine Specialist, Petroleum Industry Health Organization (PIHO), Tehran, Iran.
| | - Baharak Bahadori
- 6. Occupational Medicine Resident, Occupational Medicine Department, Iran University of Medical Sciences, Tehran, Iran.
| | - Mirsaeed Attarchi
- 7. Associate Professor of Occupational Medicine, Occupational Medicine Department, Iran University of Medical Sciences & Brain and Spinal Injury Research Center (BASIR), Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran.
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Abstract
Relaxin is a hormone structurally related to insulin and insulin-like growth factor, which exerts its regulatory effect on the musculoskeletal and other systems through binding to its receptor in various tissues, mediated by different signaling pathways. Relaxin alters the properties of cartilage and tendon by activating collagenase. This hormone is also involved in bone remodeling and healing of injured ligaments and skeletal muscle. In this review, we have summarized the literature on the effect of relaxin in musculoskeletal system to provide a broad perspective for future studies in this field.
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Affiliation(s)
- F Dehghan
- Department of Physiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - B S Haerian
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - S Muniandy
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - A Yusof
- Department of Physiology, Sports Center, University of Malaya, Kuala Lumpur, Malaysia
| | - J L Dragoo
- Department of Orthopaedic Surgery, Stanford University, Redwood City, California, USA
| | - N Salleh
- Department of Physiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
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Attarchi M, Dehghan F, Afrasyabi M, Sadeghi Z, Mohammadi S. Combined Effect of Cigarette Smoking and Occupational Exposures on Lung Function: A Cross-sectional Study of Rubber Industry Workers. Workplace Health Saf 2013. [DOI: 10.3928/21650799-20130418-66] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Attarchi M, Dehghan F, Afrasyabi M, Sadeghi Z, Mohammadi S. Combined effect of cigarette smoking and occupational exposures on lung function: a cross-sectional study of rubber industry workers. Workplace Health Saf 2013; 61:213-20. [PMID: 23650896 DOI: 10.1177/216507991306100505] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Accepted: 01/28/2013] [Indexed: 11/16/2022]
Abstract
Workers in the rubber industry are exposed to pulmonary health hazards. The main purpose of this study was to assess the combined effect of cigarette smoking and occupational exposures on lung function. The exposed group consisted of tire manufacturing workers in production units and the non-exposed group included executives from the same factory. The researchers calculated the synergy index (SI) to determine the combined effect of exposures to cigarette smoke and pulmonary health hazards on lung function. A significant correlation was found between occupational exposures in the rubber industry and abnormal spirometric findings (p < .05). The synergistic effect of cigarette smoking and occupational exposures on lung function was significant (SI = 2.25; p < .05). This study demonstrated that occupational exposures and smoking may have a synergistic effect on the respiratory systems of tire manufacturing workers. The results suggest that tire manufacturing companies should consider establishing spirometric surveillance systems in their factories. Also, smoking cessation should be promoted, engineering controls applied, and respiratory protection provided to workers.
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Affiliation(s)
- Mirsaeed Attarchi
- Occupational Medicine Department, Tehran University of Medical Sciences, Tehran, Iran
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Mousavi SM, Dehghan F, Saljoughi E, Hosseini SA. Preparation of modified polyethersulfone membranes using variation in coagulation bath temperature and addition of hydrophilic surfactant. J Polym Res 2012. [DOI: 10.1007/s10965-012-9861-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Attarchi M, Dehghan F, Safakhah F, Nojomi M, Mohammadi S. Effect of exposure to occupational noise and shift working on blood pressure in rubber manufacturing company workers. Ind Health 2012; 50:205-213. [PMID: 22453208 DOI: 10.2486/indhealth.ms1321] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
This study aimed to assess the relationship between shift working and occupational exposure to noise with blood pressure (BP). The study was carried out in a rubber manufacturing company in 2010. Demographic, medical and occupational information for carrying out the study were collected through direct interview. All 331 under study workers were divided into four groups according to work shift and noise exposure severity, from non-noise exposed day time workers (Group 1) to noise exposed shift workers (Group 4). Finally, systolic and diastolic blood pressure levels were compared among these four groups. The results of this study showed that there was a significant difference between average systolic and diastolic BP and hypertension (HTN) frequency in the four groups (p<0.05). The highest rate of HTN and mean systolic and diastolic BP were observed among shift workers who were exposed to noise higher than permissible limit (Group 4). Also the results of logistic regression analysis showed that there was a significant relationship between simultaneous exposures to noise more than the permitted limit and shift work with HTN (p<0.05). The results of our study showed that shift working and simultaneous exposure to noise have an additive effect on occurrence of HTN. It is recommended that during periodic physical examinations of noise exposed shift workers, assessment of the cardiovascular system and BP should be done as well as the auditory system.
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Affiliation(s)
- Mirsaeed Attarchi
- Occupational Medicine Department and Occupational Medicine Research Center, School of Medicine, Tehran University of Medical Sciences, Iran
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Alaeddini M, Salah S, Dehghan F, Eshghyar N, Etemad-Moghadam S. Comparison of angiogenesis in keratocystic odontogenic tumours, dentigerous cysts and ameloblastomas. Oral Dis 2009; 15:422-7. [DOI: 10.1111/j.1601-0825.2009.01566.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Dehghan F, Abrishami-Moghaddam H, Giti M. Automatic detection of clustered microcalcifications in digital mammograms: Study on applying adaboost with SVM-based component classifiers. Annu Int Conf IEEE Eng Med Biol Soc 2008; 2008:4789-4792. [PMID: 19163787 DOI: 10.1109/iembs.2008.4650284] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
This paper presents a computer-aided diagnosis (CAD) system for automatic detection of clustered microcalcifications (MCs) in digitized mammograms. The proposed system consists of two main steps. First, potential MC pixels in the mammograms are segmented out by using four mixed features consisting of two wavelet features and two gray level statistical features and then the potential MC pixels are labeled into potential individual MC objects by their spatial connectivity. Second, MCs are detected by extracting a set of 17 features from the potential individual MC objects. The classifier which is used in the first step is a multilayer feedforward neural network classifier but for the second step we have used Adaboost with SVM-based component classifier. Component classifiers which we used in our combining method are SVM classifiers with RBF kernel. The method was applied to a database of 40 mammograms (Nijmegen database) containing 105 clusters of MCs. A free-response operating characteristics (FROC) curve is used to evaluate the performance of CAD system. Results show that the proposed system gives quite satisfactory performance. In particular, 89.55% mean true positive detection rate is achieved at the cost of 0.921 false positive per image.
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Affiliation(s)
- F Dehghan
- Electrical Engineering Department, K. N. Toosi University of Technology, 16315-1355 Tehran, Iran.
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