31 results on '"Zokaei M"'
Search Results
2. Model of the Selection KPI for assessing the performance of the Urban HSE management system
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Falahati, M., Zokaei, M., Asady, H., Mojre, M. N., Biabani, A., and Torshizi, Y. F.
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hse ,ahp ,lcsh:R ,lcsh:Medicine ,performance assessment indicators ,urban - Abstract
Background and aims: Performance assessment and also performance indicators have a great importance in all aspects of life. By these indicators appropriate responses to what is happening for make some improvement, could be determined. In the past, the safety and health performance of organizations was measured with using of some indicators from the USA Occupational Health and Safety Administration (OSHA) such as the rate of recorded injuries, the rate of lost days, the rate of workerschr('39') complaints, and so on. Determining of this information were done to compare the health and safety status of contractors and industries and ranking them. However, improvement or weakening the safety and health status is cleared by the OSHA indicators, but the ways were not determined by these indicators. The main objective of measuring safety and health performance is to provide the necessary information on the developments and current status of strategies, processes and activities that an organization is conducting to control health and safety risks. Safety performance indicators are divided into two main categories: the leading and the lagging indicators. The leading indicators are the organizationchr('39')s actions for predicting and preventing incidents and accidents before they occur, while the lagging indicators are shown the organizationchr('39')s performance after the occurrence of the accidents to reduce its consequences. Sustainable urban development is a high-profile goal, and its realization in metropolitan areas requires the use of efficient management practices and extensive planning. The extent and complexity of urban issues and the urban ever- increasing development have made urban management a difficult task. In addition to issues such as transportation, urban planning and management is one of the important factors that has a main influence on urban constructive factors. In organizations such as the municipality, and on a wider dimension in societies, various plans and policies such as environmental plans, safety plans, crisis management, educational policies, occupational health plans, as well as some international standards for sustainable urban development were used. The Integrated Health, Safety and Environment Management System (HSE-MS), by providing the appropriate structure and model, manages all these policies and plans, and, in addition to creating a specific order in the implementation of these programs helps to centralize costs and improve the economic status of the organization and the achievement of sustainable urban development. Performance measurement is the main issue at all levels of the organization and its improvement needs to be measured, so an organization cannot be conceived without a performance evaluation system. Measuring the performance of an organization in the HSE field is a precondition for continuous improvement. Different organizations and industries need to design performance measurement indicators to assessment and monitor the performance of the HSE management system and determine the effectiveness of themselves performance. Determining the performance assessment indicators of HSE in addition to measuring of the management system performance can lead to systematic identification of improvement points and reduction of HSE related risk factors and ultimately lead to increased organizational productivity. The research shows that the applied, comprehensive and structured model has not yet been designed and implemented to ensure the efficiency and effectiveness of the HSE management system in different metropolitan areas. Although there are some retrospective and prospective HSE performance assessment indicators in municipalities but these indicators are purely result-oriented and the creation and institutionalization of processes related to the seven components of the health, safety and environmental management system cannot be measured by them. What matters here is to create an appropriate method with sufficient accuracy to determine the effectiveness of the system. This research, while introducing an innovative model for quantitative ranking of different municipality areas of metropolitans according to the HSE performance assessment with using of AHP technique, the final goal is the determine of key indicators of urban HSE performance assessment. Methods: This descriptive-applied study was conducted in four steps. Step 1: Selecting HSE Performance Measurement Indicators and Urban Management: In the first step, a variety of safety and health management systems (HSE-MS, OHSAS 18001, ISO 14001, etc.), a variety of existing national and international health and safety assessment methods, guidelines, and requirements for safety and health management systems for determining the performance measurement indicators were studied. At this step, through the field visits of the different areas of the municipality and observing work processes, interviewing and organizing various meetings with HSE managers and experts, and studying documentation, the HSE performance assessment indicators in the three areas including process-oriented, result-oriented and urban management were categorized. Step 2: Selecting the components of the performance monitoring system: The findings suggest that the use of a systematic approach in different domains, in addition to integrating activities, has improved efficiency and effectiveness and increased operational efficiency. Accordingly, many organizations have set up various health, safety and environmental management systems as the basis of themselves operations. The use of the main components of an integrated management system to identify weaknesses or strengths of system is one of the effective measures for measuring performance. At this step, after determining the assessment axes, the performance assessment components were identified for each of the performance monitoring axes. Step 3: Development of Urban HSE Performance Assessment Indicators: At this step, the indicators for assessing the performance of the urban HSE management system were determined based on the components of each of the performance monitoring axes. According to the main components, the HSE management system was included 18 components such as commitment and leadership, policy, resources, etc. Also in the urban management part 6 components including economic sustainability, social sustainability, architecture and urbanization, demographics, political, legal, and industrial was considered. Indicators related to the result performance were also developed based on the components of the HSE performance output monitoring system in the six areas including safety, health, environment, education, culture and HSE of citizenship. Step 4: Select Key Performance Indicators: To create an effective HSE-MS performance measurement method, it is necessary to reduce the number of LPIs to fewer or the most important KPIs. This means that among the existing indicators, the best and most important indicators are selected based on the considered criteria. At this step, key performance indicators were selected from the sum of the extracted indicators based on the elements of the HSE management system using the AHP method. All indicators were compared in pairs and each of them was prioritized as a number between 1-9, 1 as lowest priority and 9 as most preferred. Couple comparisons were conducted based on SMART criteria and expert’s opinion. In this study, the paired comparison of axes and performance indicators and determining the weight vector of the indicators was performed using Expert Choice11 software. Results: In addition to examining the HSE management systems deployed in the municipalities, as well as using previous studies, the axes and indicators for assessing the performance of the urban HSE management system were determined. Of the 30 components and 155 indicators of performance assessment, 18 components and 98 indicators were related to monitoring of management system of HSE based on the seven elements and sub elements of the Health, Safety and Environment Management System (HSE-MS). Performance output and urban management axes with 40 and 17 indicators, respectively, have a smaller share of the total indicators developed. Between the process-oriented performance axes, the commitment and leadership axes (0.198) and the HSE records of occupations (0.016) have the highest and lowest weight, respectively. The safety components (0.247) and training (0.150) had the highest and lowest weight in the result-oriented performance axes respectively and economic sustainability (0.301) and architecture and urban planning (0.122) had the highest and lowest weight in among the urban management functional axes respectively. After weighting the indicators for measurement of performance, 70 indicators that had the highest weight than other indicators were selected as key performance indicators. Of the 70 indicators, 47, 16 and 7 indicators are related to the HSE process, the result and urban management respectively. Between the functional sub axes of the HSE process, accident management, inspection, and audit each with five key performance indicators, has the highest measurement index compared to other HSE process sub axes. In the functional axis of the HSE result, the sub axes of ecology with 4 key performance indicators and the sub-axes of safety and health, each with 3 indicators, had the highest number of indicators in this axis. In the urban management axis, sub axes including the socio-cultural and architecture and urbanism axes, each with two key performance indicators, had 4 indicators of total 70 selected key performance indicators. Conclusion: The results of this study indicate that the determination of HSE performance indicators in addition to the components of the HSE management system should be done based on the type of macro management structure and other influential parameters of the organization. The study of the municipals management structure shows that the extracted indicators based on the components of the HSE management system alone cannot cover the urban HSE performance because of factors such as economic sustainability, socio-cultural, demographic, architectural, urban, and industrial-industrial can significantly affect the performance status of the HSE management system of city. Therefore, it is essential to design and codification of indicators as a tool for measuring the performance of management systems, all aspects of the management system in order to achieve the more accuracy and reliability be considered.
- Published
- 2019
3. The evaluation of ESBL genes and antibiotic resistance rate in Escherichia coli strains isolated from meat and intestinal contents of turkey in Isfahan, Iran.
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Gholami-Ahangaran, M., Moravvej, A. H., Safizadeh, Z., Sadeghi Nogoorani, V., Zokaei, M., and Ghasemian, S. O.
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CEFTAZIDIME ,GASTROINTESTINAL contents ,ESCHERICHIA coli ,DRUG resistance in bacteria ,CEFOTAXIME ,GENES - Abstract
Background: Extended spectrum beta-lactamase (ESBL) has been described in Escherichia coli strains that have been isolated from humans and animals; it has induced a main concern with antibiotic resistance in serious bacterial infections. Aims: This study aimed to investigate the frequency of ESBL-producing E. coli (EPE) strains in meat and intestinal contents of turkey, and to compare the antibiotic resistance profile between EPE and non-EPE strains. Methods: Totally, 70 and 110 E. coli strains were isolated from turkey meat and turkey intestinal content samples, respectively. To determine EPE strains, double disc synergy test was applied by that 20 and 22 EPE strains were finally identified in meats and intestinal contents of the turkeys, respectively. Antibiotic susceptibility was exerted using disc diffusion method. Escherichia coli isolates were then characterized for virulence genes (stx-1 and stx-2) and ESBL genes (TEM, SHV, and CTX-M). Results: None of the E. coli strains harbored stx genes. The EPE strains in comparison with non-EPE strains were significantly more resistant to ciprofloxacin (47.6 vs 26.5%), tetracycline (80.9 vs 67.3%), ampicillin (47.6 vs 22.4%), penicillin (23.8 vs 10.2%), ceftazidime (57.1 vs 16.3%), ceftriaxone (38.1 vs 18.4%), and cefotaxime (47.6 vs 8.2%). The majority of EPE strains carried CTX-M gene. SHV showed the lowest frequency and it was not detected in EPE strains isolated from the intestinal contents. In this study, 75% of TEM-producing E. coli strains and 33% of SHV-producing E. coli strains were resistant to ampicillin. In addition, 41.7% of TEM-producing E. coli strains were resistant to penicillin, and 76.9% of CTX-producing E. coli were resistant to cefotaxime. Furthermore, 4.7% of EPE strains isolated from turkey meat were imipenem resistant. Conclusion: The resistance to cefotaxime and imipenem in EPE strains induces a concern in growing antibiotic resistance against broad spectrum antibiotics in E. coli strains. [ABSTRACT FROM AUTHOR]
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- 2021
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4. The effects of road traffic noise on the students\' errors in movement time anticipation; the role of introversion
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Alimohammadi, I., Zokaei, M., Ali Asghar Farshad, Falahati, M., and Mosavi, B.
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Extroversion ,Traffic noise ,lcsh:R ,Time movement anticipation ,lcsh:Medicine - Abstract
Background and Aims: Traffic noise is one of the most important urban noise pollution, which causes various physical and mental effects, impairment in daily activities, sleep disturbances, hearing loss and the impact on job performance. Thus it can reduce concentration significantly and increase the rate of traffic accidents. Some individual differences such as personality types in noise effects, affect. Methods : Traffic noise has been measured and recorded in 10 arterial streets in Tehran, and the average sound pressure level measured was72/9 dB during two hours played for participants in the acousticroom . The sample size consisted of 80 patients (40 cases and 40 controls) who were students of Tehran University of Medical Sciences. Personality type was determined by using Eysenc’s Personality Inventory (EPI)questionnaire. The error time movement anticipation before and after exposure to traffic noisewas measured by ZBA computerize test. Results: The results revealed that error time movement anticipation before exposure to traffic noise have significant difference for introverts and extraverts Introverts have less errortime movement anticipation than extroversion ,whereas extroverts have less error time movement anticipation that introversion after exposure to traffic noise. Conclusion: According to the obtained results, noise created different effects on the performance of personality type. Extroverts may be expected to adapt better to noise during mental performance, compared to people with opposite personality traits.
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- 2012
5. Evaluating the reliability of WBGT and P4SR by comparison to core body temperature
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Falahati, M., Alimohammadi, I., Ali Asghar Farshad, Zokaei, M., and Sardar, A.
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heat stress ,oil terminal ,lcsh:R ,lcsh:Medicine ,WBGT ,P4SR - Abstract
Background and Aims: Hot and humid conditions are common in many parts of the world; these conditions can influence both the health and performance of individuals. Therefore to describe the environmental conditions appropriately, the amount of reliability of heat stress indices should be measured. The aim of this study was evaluating the reliability of WBGT and P4SR by comparison to core body temperature in an OilTerminal. Methods: The participants (94 persons) were two groups of acclimatized and not acclimatized employees of different units of the Oil Terminal. After identifying the units and their activities, air and wet temperatures, WBGT, and core body temperature (oral and tympanic) were measured in three situations including outdoor, indoor, and rest activities. Results: The statistically significant correlation was found between above mentioned heat stress indices with oraland tympanictemperatures (P
- Published
- 2012
6. Assessment of occupational exposure to crystalline silica during demolition of buildings in Tehran.
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Kakooei, H., Nourmohammadi, M., Mohammadian, Y., Zarei, E., and Zokaei, M.
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- 2014
7. Using assessment repetitive task (ART) tool in an assembly industry.
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Abbaszadeh, M., Zokaei, M., Zakerian, S. A., and Hassani, H.
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- 2013
8. Determination of variables and anthropometric indicators for classroom chair design (Study group: Tehran University medicine science - 2011).
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Falahati, M., Zokaei, M., Sadeghi Naeini, H., and Moradi, Gh. R.
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- 2013
9. Children mortality rate trend in Kurdistan province during 2007 to 2011
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Khaled Rahmani, Zokaei, M., Bidarpoor, F., Babahajiani, S. H., Nessaei, P., and Moradi, G.
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Kurdistan ,Mortality Trend ,RC86-88.9 ,Medical emergencies. Critical care. Intensive care. First aid ,Children ,Mortality causes - Abstract
Background & Objectives: The aim of this study was to investigate the trend of mortality of children under five years old in Kurdistan Province during 2007 to 2011.Methods: The data of this descriptive-analytical study on deaths and births was collected from provincial deaths registry system and Civil Registration System during 2007 to 2011. The main indicators including under-five mortality, infant mortality, and neonatal mortality rate during the given period were studied. The relationship between variables was calculated using chi-square test. Results: The neonatal mortality rate changed from 13.5 per thousand live births in 2007 to 12.2 per thousand live births in 2011. During the same period of time, the infant mortality rate and under-five mortality rate declined from 17.1 and 20.2 to 14.9 and 17.4 per thousand live births, respectively. A significant relationship was found between gender and infant mortality. Among the major causes of mortality, prenatal diseases, especially infant diseases, were the most common cause of death in the neonatal period.Conclusion: According to the results of this study, although there was a reduction in the under-five mortality rate during these years, the observed decline, especially the decline in infant mortality rate, was very slow. There are still some preventable causes of death in children which require more attention by the health system and researchers
10. Determination of variables and anthropometric indicators for classroom chair design (study group: Tehran University medicine science - 2011)
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Falahati, M., Zokaei, M., Hassan Sadeghi Naeini, and Moradi, Gh R.
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anthropometry ,lcsh:R ,classroom ,educational environments ,lcsh:Medicine ,ergonomic ,chair - Abstract
ackground and aims : The workstation design and providing more convenience and high productivity is one of the main objectives of ergonomics. Work stations should be designed in such a way that fit with the physical and mental demands of the users. One way to achieve this goal is to measure the human dimensions and anthropometric parameters in which different segments of the body can be measured. Methods : In this study seventy students from 21 to 30 years (35 male, 35 female) were selected as samples from the School of Public Health that cooperated in anthropometric measurements. Based on the valid articles a list of 15 anthropometric parameters related to research was obtained and each of parameters was measured using equipment such as static anthropometric. Results : Based on the results of the measured dimensions, all of which were normally distributed, considering the ergonomic analysis available four types chairs in classrooms, it was determined that only one chair type, 40% is match with students' anthropometric dimensions. Conclusion : The results of this study, led to the acquisition of properties for design and selection of appropriate training chairs based on principles of ergonomic.
11. Occupational exposure to needle stick and its risk factors among healthcare workers in one of Sabzevar's hospital
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Abareshi, F., reza hekmatshoar, Zokaei, M., and Akrami, R.
12. Retraction Note: An overview on mRNA-based vaccines to prevent monkeypox infection.
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Natami M, Gorgzadeh A, Gholipour A, Fatemi SN, Firouzeh N, Zokaei M, Mohammed Ali SH, Kheradjoo H, Sedighi S, Gholizadeh O, and Kalavi S
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- 2024
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13. The effect of COVID-19 anxiety on nurses' productivity determinants through perceived workload and individual job performance: A Bayesian mediation analysis.
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Rafiee M, Eskandari T, Mahmood EA, Zokaei M, Falahati M, and Khalilzadeh Naghneh MH
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This study aims to predict how COVID-19 anxiety affects productivity determinants by examining the role of perceived workload and individual job performance as mediators using Bayesian mediation analysis. To achieve the study's objectives, all nurses working at Imam Reza Hospital were recruited to participate. To gather data, all eligible and voluntary nurses were asked to complete questionnaires that included the Corona Disease Anxiety Scale (CDAS), Individual Job Performance Questionnaire (IJPQ), NASA Task Load Index (NASA-TLX), and Workforce Productivity Questionnaire. Of the total number of nurses employed, 222 (126 women and 96 men) nurses fully completed the questionnaires. Out of these, 140 individuals were married and 82 were single. The mean ± standard deviation (SD) of the age and experience were 28.56 ± 5.78 and 8.49 ± 6.50, respectively. GeNIe software version 2.0 utilized to analyze the Bayesian network. The results showed that for the high COVID-19 anxiety and high workload states, with a probability of 100 %, the probability of high evaluation and high environment increased by 16.6 % and 16.3 %, respectively, but low evaluation and low environment decreased by 22.4 % and 22 %, respectively. In the high COVID-19 anxiety and low IJP states with a probability of 100 %, most change was related to the high ability (6 % increase), low evaluation (3.9 % increase), high incentive (3.8 % increase), low ability (4.6 % decrease) and low support (2 % decrease). Regarding COVID-19 anxiety (high 100 %), workload (high 100 %) and IJP (low 100 %), most of the increase was related to high environment and high evaluation by an increase of 17.3 and 17.2 %, respectively. Also, the value of low evaluation and low environment was reduced by 24 and 23.4 %, respectively. The study's findings confirm that nurses have been more productive during the COVID-19 pandemic, despite facing high workloads and the COVID-19 anxiety., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2024 The Authors.)
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- 2024
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14. An overview on mRNA-based vaccines to prevent monkeypox infection.
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Natami M, Gorgzadeh A, Gholipour A, Fatemi SN, Firouzeh N, Zokaei M, Mohammed Ali SH, Kheradjoo H, Sedighi S, Gholizadeh O, and Kalavi S
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- United States, Humans, mRNA Vaccines, COVID-19 Vaccines, Antigens, Viral, Smallpox Vaccine, Smallpox, Mpox (monkeypox) prevention & control
- Abstract
The human monkeypox virus (Mpox) is classified as a member of the Poxviridae family and belongs to the Orthopoxvirus genus. Mpox possesses double-stranded DNA, and there are two known genetic clades: those originating in West Africa and the Congo Basin, commonly known as Central African clades. Mpox may be treated with either the vaccinia vaccination or the therapeutics. Modifying the smallpox vaccine for treating and preventing Mpox has shown to be beneficial because of the strong link between smallpox and Mpox viruses and their categorization in the same family. Cross-protection against Mpox is effective with two Food and Drug Administration (FDA)-approved smallpox vaccines (ACAM2000 and JYNNEOSTM). However, ACAM2000 has the potential for significant adverse effects, such as cardiac issues, whereas JYNNEOS has a lower risk profile. Moreover, Mpox has managed to resurface, although with modified characteristics, due to the discontinuation and cessation of the smallpox vaccine for 40 years. The safety and efficacy of the two leading mRNA vaccines against SARS-CoV-2 and its many variants have been shown in clinical trials and subsequent data analysis. This first mRNA treatment model involves injecting patients with messenger RNA to produce target proteins and elicit an immunological response. High potency, the possibility of safe administration, low-cost manufacture, and quick development is just a few of the benefits of RNA-based vaccines that pave the way for a viable alternative to conventional vaccines. When protecting against Mpox infection, mRNA vaccines are pretty efficient and may one day replace the present whole-virus vaccines. Therefore, the purpose of this article is to provide a synopsis of the ongoing research, development, and testing of an mRNA vaccine against Mpox., (© 2024. The Author(s).)
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- 2024
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15. Polyphenols and inflammatory bowel disease: Natural products with therapeutic effects?
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Vaghari-Tabari M, Alemi F, Zokaei M, Moein S, Qujeq D, Yousefi B, Farzami P, and Hosseininasab SS
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- Humans, Animals, Resveratrol pharmacology, Resveratrol therapeutic use, Oxidative Stress drug effects, Flavanones pharmacology, Flavanones therapeutic use, Biological Products pharmacology, Biological Products therapeutic use, Stilbenes pharmacology, Stilbenes therapeutic use, Probiotics therapeutic use, Disease Models, Animal, Dietary Supplements, Quality of Life, Prebiotics, Polyphenols pharmacology, Inflammatory Bowel Diseases drug therapy, Curcumin pharmacology, Curcumin therapeutic use, Catechin analogs & derivatives, Catechin pharmacology, Catechin therapeutic use, Quercetin pharmacology, Antioxidants pharmacology, Antioxidants therapeutic use
- Abstract
Inflammatory bowel disease (IBD) is a long-life disease with periods of recurrence and relief. Oxidative stress plays an important role in the pathogenesis of this disease. Recent years' studies in the field of IBD treatment mostly have focused on targeting cytokines and immune cell trafficking using antibodies and inhibitors, altering the composition of intestinal bacteria in the line of attenuation of inflammation using probiotics and prebiotics, and attenuating oxidative stress through antioxidant supplementation. Studies in animal models of IBD have shown that some polyphenolic compounds including curcumin, quercetin, resveratrol, naringenin, and epigallocatechin-3-gallate can affect almost all of the above aspects and are useful compounds in the treatment of IBD. Clinical studies performed on IBD patients have also confirmed the findings of animal model studies and have shown that supplementation with some of the above-mentioned polyphenolic compounds has positive effects in reducing disease clinical and endoscopic activity, inducing and maintaining remission, and improving quality of life. In this review article, in addition to a detailed reviewing the effects of the above-mentioned polyphenolic compounds on the events involved in the pathogenesis of IBD, the results of these clinical studies will also be reviewed.
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- 2024
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16. Don't eat me/eat me signals as a novel strategy in cancer immunotherapy.
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Khalaji A, Yancheshmeh FB, Farham F, Khorram A, Sheshbolouki S, Zokaei M, Vatankhah F, and Soleymani-Goloujeh M
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Cancer stands as one of the prominent global causes of death, with its incidence burden continuously increasing, leading to a substantial rise in mortality rates. Cancer treatment has seen the development of various strategies, each carrying its drawbacks that can negatively impact the quality of life for cancer patients. The challenge remains significant within the medical field to establish a definitive cancer treatment that minimizes complications and limitations. In the forthcoming years, exploring new strategies to surmount the failures in cancer treatment appears to be an unavoidable pursuit. Among these strategies, immunology-based ones hold substantial promise in combatting cancer and immune-related disorders. A particular subset of this approach identifies "eat me" and "Don't eat me" signals in cancer cells, contrasting them with their counterparts in non-cancerous cells. This distinction could potentially mark a significant breakthrough in treating diverse cancers. By delving into signal transduction and engineering novel technologies that utilize distinct "eat me" and "Don't eat me" signals, a valuable avenue may emerge for advancing cancer treatment methodologies. Macrophages, functioning as vital components of the immune system, regulate metabolic equilibrium, manage inflammatory disorders, oversee fibrosis, and aid in the repair of injuries. However, in the context of tumor cells, the overexpression of "Don't eat me" signals like CD47, PD-L1, and beta-2 microglobulin (B2M), an anti-phagocytic subunit of the primary histocompatibility complex class I, enables these cells to evade macrophages and proliferate uncontrollably. Conversely, the presentation of an "eat me" signal, such as Phosphatidylserine (PS), along with alterations in charge and glycosylation patterns on the cellular surface, modifications in intercellular adhesion molecule-1 (ICAM-1) epitopes, and the exposure of Calreticulin and PS on the outer layer of the plasma membrane represent universally observed changes on the surface of apoptotic cells, preventing phagocytosis from causing harm to adjacent non-tumoral cells. The current review provides insight into how signaling pathways and immune cells either stimulate or obstruct these signals, aiming to address challenges that may arise in future immunotherapy research. A potential solution lies in combination therapies targeting the "eat me" and "Don't eat me" signals in conjunction with other targeted therapeutic approaches. This innovative strategy holds promise as a novel avenue for the future treatment of cancer., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2023 The Authors.)
- Published
- 2023
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17. The effectiveness of treatment with probiotics in Helicobacter pylori eradication: results from an umbrella meta-analysis on meta-analyses of randomized controlled trials.
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Musazadeh V, Nazari A, Faghfouri AH, Emami M, Kavyani Z, Zokaei M, Jamilian P, Zarezadeh M, and Saedisomeolia A
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- Humans, Anti-Bacterial Agents therapeutic use, Anti-Bacterial Agents pharmacology, Randomized Controlled Trials as Topic, Helicobacter pylori, Helicobacter Infections drug therapy, Helicobacter Infections prevention & control, Probiotics therapeutic use
- Abstract
Background and aims : The purpose of this umbrella meta-analysis was to quantitatively summarize meta-analyses of randomized controlled trial (RCT) studies regarding the effects of probiotic supplementation on Helicobacter pylori ( H. pylori ) eradication. Methods : A thorough search of the electronic databases including PubMed, Web of Science, Embase, Scopus, and Google Scholar was carried out from the inception up to May 2022. For the evaluation of overall effect sizes, the pooled relative risk (RR) or odds ratio (OR) and their corresponding 95% confidence intervals (CI) were calculated. The random-effects model was used for the meta-analysis. Results : Overall, 18 eligible studies (47 278 participants in total) were included in the study. The findings revealed that probiotics have a beneficial impact on H. pylori eradication (pooled ES
RR : 1.13; 95% CI: 1.11, 1.14, p < 0.01, and ESOR = 1.86, 95% CI: 1.70, 2.03, p < 0.01). Greater effects on H. pylori eradication were observed when higher doses (>10 × 1010 CFU) and mixed strains were supplemented. Conclusion : The present umbrella meta-analysis suggests that supplementation with probiotics may be considered as an efficient approach to ameliorate H. pylori complications, particularly probiotics with higher CFUs and mixed strains.- Published
- 2023
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18. Macrophage's role in solid tumors: two edges of a sword.
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Jahandideh A, Yarizadeh M, Noei-Khesht Masjedi M, Fatehnejad M, Jahandideh R, Soheili R, Eslami Y, Zokaei M, Ahmadvand A, Ghalamkarpour N, Kumar Pandey R, Nabi Afjadi M, and Payandeh Z
- Abstract
The tumor microenvironment is overwhelmingly dictated by macrophages, intimately affiliated with tumors, exercising pivotal roles in multiple processes, including angiogenesis, extracellular matrix reconfiguration, cellular proliferation, metastasis, and immunosuppression. They further exhibit resilience to chemotherapy and immunotherapy via meticulous checkpoint blockades. When appropriately stimulated, macrophages can morph into a potent bidirectional component of the immune system, engulfing malignant cells and annihilating them with cytotoxic substances, thus rendering them intriguing candidates for therapeutic targets. As myelomonocytic cells relentlessly amass within tumor tissues, macrophages rise as prime contenders for cell therapy upon the development of chimeric antigen receptor effector cells. Given the significant incidence of macrophage infiltration correlated with an unfavorable prognosis and heightened resistance to chemotherapy in solid tumors, we delve into the intricate role of macrophages in cancer propagation and their promising potential in confronting four formidable cancer variants-namely, melanoma, colon, glioma, and breast cancers., (© 2023. The Author(s).)
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- 2023
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19. Persistent effects of mobile phone conversation while driving after disconnect: Physiological evidence and driving performance.
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Pouyakian M, Zokaei M, Falahati M, Nahvi A, and Abbasi M
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Cognitive workload has been known as a key factor in traffic accidents, which can be highly increased by talking on the phone while driving. A wide range of studies around the world investigated the effects of mobile phone conversations on driving performance and traffic accidents. But less noticed is the durability of cognitive effects of mobile phone conversations. This study aimed to determine the effects of different types of mobile phone conversations on physiological response and driving performance during and after the conversation. Heart rate, heart rate variability (physiological response), Standard deviation of lane position (SDLP), and the relative distance between two cars (driving performance) of 34 samples (male and female) in the driving simulator were recorded. In this study, three types of conversations (neutral, cognitive, and arousal) were used. Neutral conversation did not pursue specific purpose questions. Cognitive conversations were simple mathematical problem-solving questions and arousal conversations aimed at arousing participant emotions. Each conversation was used as a secondary task in a condition. The study had three conditions; in each condition the participant drove for 15 min. Each condition consisted of 5 min of driving (Background), 5 min of driving and conversation (dual tasks) and 5 min of driving after conversation to trace the effects of the conversation. Vehicle speed was 110 km/h in each of the three conditions using car-following scenario. The results showed that neutral conversations had no significant effects on physiological response. Though, arousal conversations had significant effects on physiological responsiveness and driving performance during conversations, where it was even more significant after disconnection. Therefore, the content of the conversation determines the amount of cognitive load imposed on the driver. Considering the persistence of cognitive effects caused by conversation, the risk of traffic accidents is still high even after disconnection., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2023 The Authors. Published by Elsevier Ltd.)
- Published
- 2023
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20. Hypoxia-circular RNA crosstalk to promote breast cancer.
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Karami Fath M, Shafieyari S, Ardalani N, Moumivand F, Kaviani Charati H, Zareei M, Mansoori Nia A, Zokaei M, and Barati G
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- Humans, Female, RNA, Circular genetics, Hypoxia metabolism, Neovascularization, Pathologic genetics, Cell Proliferation, Hypoxia-Inducible Factor 1, alpha Subunit metabolism, Gene Expression Regulation, Neoplastic genetics, Breast Neoplasms genetics, Breast Neoplasms pathology
- Abstract
The expression of hypoxia-inducible factors (HIFs), particularly HIF-1, plays a major role in the adaptation of solid tumors to hypoxic conditions. The activation of the HIF pathway results in an expression of genes involved in the promotion of cell growth, proliferation, vascularization, metastasis, and therapeutic resistance. Circular RNA (CircRNA) is considered as a major regulator of gene expression. CircRNAs could regulate the HIF-1 pathway in cancer cells. In addition, they might be regulated by the HIF-1 pathway to promote cancer progression. Therefore, the crosstalk between hypoxia and circRNA might be involved in the pathogenesis of cancers, including breast cancer. In this review, we discussed the function of HIF-related circRNAs in the progression, angiogenesis, metabolic reprogramming, and stemness maintenance of breast cancer. In addition, the correlation between HIF-related circRNAs and clinical features of breast cancer is reviewed., Competing Interests: Conflict of interest The authors declare no conflict of interest., (Copyright © 2023 Elsevier GmbH. All rights reserved.)
- Published
- 2023
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21. A Bayesian network model to predict the role of hospital noise, annoyance, and sensitivity in quality of patient care.
- Author
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Abbasi M, Yazdanirad S, Zokaei M, Falahati M, and Eyvazzadeh N
- Abstract
Background: Hospital noise can adversely impact nurses' health, their cognitive function and emotion and in turn, influence the quality of patient care and patient safety. Thus, the aim of this study was to predict the contributing roles of exposure to hospital noise, staff noise-sensitivity and annoyance, on the quality of patient care., Methods: This descriptive and cross-sectional study was carried out among nurses in an Iranian hospital. To determine nurses' noise exposure level, the noise was measured in 1510 locations across the hospital in accordance with ISO 9612 standards using KIMO DB 300/2 sound level meter and analyzer. An online survey was used to collect nurses' individual data. Study questionnaires included demographics, Weinstein noise sensitivity scale, noise annoyance scale, and quality of patient care scale. Finally, to analyze the data, Bayesian Networks (BNs), as probabilistic and graphical models, were used., Results: For the high noise exposure state, high noise sensitivity, and high annoyance, with the probability of 100%, the probability of delivering a desirable quality of patient care decreased by 21, 14, and 23%, respectively. Moreover, at the concurrently high noise exposure and high noise sensitivity with the probability of 100%, the desirable quality of patient care decreased by 26%. The Bayesian most influence value was related to the association of noise exposure and annoyance (0.636). Moreover, annoyance had the highest association with the physical aspect of quality of care (0.400) and sensitivity had the greatest association with the communication aspect (0.283)., Conclusion: Annoyance induced from environmental noise and personal sensitivity affected the quality of patient care adversely. Moreover, noise and sensitivity had a separate direct adverse effect upon the quality of patient care, and their co-occurrence reduced the potential for delivering quality patient care., (© 2022. The Author(s).)
- Published
- 2022
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22. Anti-cancer peptide-based therapeutic strategies in solid tumors.
- Author
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Karami Fath M, Babakhaniyan K, Zokaei M, Yaghoubian A, Akbari S, Khorsandi M, Soofi A, Nabi-Afjadi M, Zalpoor H, Jalalifar F, Azargoonjahromi A, Payandeh Z, and Alagheband Bahrami A
- Subjects
- Drug Delivery Systems methods, Humans, Ligands, Antineoplastic Agents pharmacology, Antineoplastic Agents therapeutic use, Cell-Penetrating Peptides pharmacology, Cell-Penetrating Peptides therapeutic use, Glioma drug therapy, Neoplasms drug therapy
- Abstract
Background: Nowadays, conventional medical treatments such as surgery, radiotherapy, and chemotherapy cannot cure all types of cancer. A promising approach to treat solid tumors is the use of tumor-targeting peptides to deliver drugs or active agents selectively., Result: Introducing beneficial therapeutic approaches, such as therapeutic peptides and their varied methods of action against tumor cells, can aid researchers in the discovery of novel peptides for cancer treatment. The biomedical applications of therapeutic peptides are highly interesting. These peptides, owing to their high selectivity, specificity, small dimensions, high biocompatibility, and easy modification, provide good opportunities for targeted drug delivery. In recent years, peptides have shown considerable promise as therapeutics or targeting ligands in cancer research and nanotechnology., Conclusion: This study reviews a variety of therapeutic peptides and targeting ligands in cancer therapy. Initially, three types of tumor-homing and cell-penetrating peptides (CPPs) are described, and then their applications in breast, glioma, colorectal, and melanoma cancer research are discussed., (© 2022. The Author(s).)
- Published
- 2022
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23. Thymol and carvacrol supplementation in poultry health and performance.
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Gholami-Ahangaran M, Ahmadi-Dastgerdi A, Azizi S, Basiratpour A, Zokaei M, and Derakhshan M
- Subjects
- Animals, Chickens, Cymenes, Dietary Supplements, Monoterpenes chemistry, Monoterpenes metabolism, Monoterpenes pharmacology, Poultry, Thymol analysis, Thymol chemistry, Thymol pharmacology
- Abstract
Background: Thymol and carvacrol as natural essential oils and phenol compounds are components derived from some medicinal plants, such as thyme and oregano species., Objectives: The increasing demands in organic and healthy meat and egg consumption in human society have made it necessary to consider alternative natural compounds for the replacement of chemical compounds in poultry production. The chemical compounds can remain in meat and eggs and cause complications in human health. Therefore, these natural compounds can be fed with a higher safety in poultry production with specific effects. In this regard, the role of thymol and carvacrol as natural compounds in the poultry production has been discussed in the review., Methods: In this study, by searching for keywords related to thymol and carvacrol in poultry production in Google Scholar database, the articles related to different aspects of the biological effects of these two phytogenes in poultry production were selected and analyzed., Results: A review of previous studies has shown that thymol and carvacrol possess a wide range of biological activities, including antibacterial, antiviral, antioxidant, anti-inflammatory, modulating of immunity response and regulating of the gut microbial population. Also, in meat type chickens can promote growth and influence feed utilization. The beneficial effect of this compound was evaluated in hepatic toxicity and demonstrated as a hepatoprotective compound in chickens. Furthermore, these compounds can affect the behavior of layers and influence egg composition, eggshell thickness, and the sensory quality of eggs., Conclusion: It seems that with the increasing demand for healthy protein products, these compounds can be used to improve performance as a substitute alternative for chemical compounds in healthy poultry farms., (© 2021 The Authors. Veterinary Medicine and Science published by John Wiley & Sons Ltd.)
- Published
- 2022
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24. The advantages and synergistic effects of Gunnera (Gundelia tournefortii L.) extract and protexin in chicken production.
- Author
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Gholami-Ahangaran M, Haj-Salehi M, Ahmadi-Dastgerdi A, and Zokaei M
- Subjects
- Animals, Antioxidants metabolism, Diet veterinary, Animal Feed analysis, Asteraceae chemistry, Chickens physiology, Plant Extracts pharmacology
- Abstract
Background: Probiotics and phytogenics in the poultry diet have many positive effects on productivity. The combination of these feed additives has not been studied., Objective: This study was designed for evaluation of synergistic effects of protexin (P) and Gunnera (Gundelia tournefortii L.) extract (GX) on growth, biochemical, hematological and antioxidant status of broiler chickens., Methods: Totally, 300 chicks were divided into 4 groups that fed the basal diet, diet containing P, GX, and GX plus P (GX-P) in all over the growing period. At 42 days of age, blood samples were collected from all chickens. The concentration of aspartate transferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), triglyceride (TG), cholesterol (CHL), low-density lipoprotein (LDL), high-density lipoprotein (HDL), superoxide dismutase (SOD), total antioxidant capacity (TAC), Glutathione peroxidase (GPx), haematological parameters, and humeral antibody against Newcastle disease vaccine was measured., Results: The Results showed that the feed conversion ratio in chickens fed GX-P was significantly lower than others. Also, in chickens fed GX or GX-P, the TG and CHL concentration was significantly lower and GPx and TAC concentration was significantly higher than others, while chickens that received P or GX-P showed higher haemoglobin and TP concentration. The antibody response was significantly higher in chickens fed P. The ALT, AST, ALP, and SOD concentration did not show any significant difference in all chickens., Conclusion: Continuous utilization of P along with GX in broiler diets can induce synergist effect on feed efficacy and antioxidant status, lowering lipid profiles with no effect on liver function in chickens., (© 2021 The Authors. Veterinary Medicine and Science published by John Wiley & Sons Ltd.)
- Published
- 2021
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25. Development of leading indicators for the assessment of occupational health performance using Reason's Swiss cheese model.
- Author
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Karimi A, Abbasi M, Zokaei M, and Falahati M
- Abstract
Background: The Swiss cheese model of accident causation is a model used in risk analysis and risk management, including aviation safety, engineering, healthcare, and emergency service organizations, and as the principle behind layered security, as used in computer security and defense in-depth. This study aimed to develop and weight the occupational health leading indicators using the Swiss cheese model., Materials and Methods: The present study was a descriptive, cross-sectional study; occupational health performance assessment indicators were classified into five main groups of chemical, physical, ergonomic, psychosocial, and biological harmful agents. In addition, potential hazards and their prevention methods were identified using the Swiss cheese model. The leading performance measurement indicators ( n = 64) were developed based on preventive methods and were weighted and rated by fuzzy analytic hierarchy process., Results: Thirty-six out of 64 indicators were related to the management measures, 25 indicators were related to exposure to harmful occupational agents, and the remaining indicators were occupational-related illnesses and diseases rate. Considering the importance and frequency of indicators, psychological agents were the most important indicators (40%) and physical agents had the greatest frequency (59%)., Conclusions: Process of indicators' development has demonstrated that the major occupational health prevention measures in the oil and gas industry are concentrated on physical, psychological, and chemical agents, respectively. Thus, to provide protection for employees against occupational diseases and improve health performance indicators, paying special attention to mentioned agents is essential in the oil and gas industry., Competing Interests: There are no conflicts of interest., (Copyright: © 2021 Journal of Education and Health Promotion.)
- Published
- 2021
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26. Reduction in Acrylamide Formation in Potato Crisps: Application of Extract and Hydrocolloid-Based Coatings.
- Author
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Zokaei M, Kamankesh M, Abedi AS, Moosavi MH, Mohammadi A, Rezvani M, Shojaee-Aliabadi S, and Khaneghah AM
- Subjects
- Colloids, Food Handling, Acrylamide analysis, Food Contamination prevention & control, Solanum tuberosum chemistry
- Abstract
Abstract: Two different potato chip coatings-aqueous extracts including Zataria multiflora and Allium hirtifolium at concentrations of 1, 3, 5, and 7% and hydrocolloids individually or in combination-were used to decrease acrylamide content, and their effects on the characteristics of the product were then investigated. According to the results, the incorporation of hydrocolloids as the coating was more efficient in the reduction of acrylamide production than with the extracts. Also, the application of each extract and hydrocolloids individually can be considered a more efficient technique for acrylamide reduction than their mixture. In this regard, the economic aspects of the application of hydrocolloids in the coating of fried potato crisps can be evaluated., (Copyright ©, International Association for Food Protection.)
- Published
- 2020
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27. Tracing the physiological response and behavioral performance of drivers at different levels of mental workload using driving simulators.
- Author
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Zokaei M, Jafari MJ, Khosrowabadi R, Nahvi A, Khodakarim S, and Pouyakian M
- Subjects
- Attention physiology, Iran, Automobile Driving psychology, Cell Phone, Distracted Driving statistics & numerical data
- Abstract
Introduction: The use of mobile phones while driving is known to be a distraction factor and a cause of accidents. The way in which different kinds of conversations affect the behavioral performance of the driver as well as the persistence of the effects are not yet fully understood., Method: In this study, in addition to comparing brain function and behavioral function in dual task conditions in three conversations types, the persistent effects of these types of conversations have also been traced., Results: The results show that the content of the mobile phone conversation while driving is the cause of the persistent changes in behavioral and brain functions. Increased time headway and lane departure was observed during and up to 5 min after the emotional conversation was finished. EEG bands also varied in different types of conversations. Cognitive conversations caused an increase in the activity of the alpha and beta bands while emotional conversations enhanced the rate of gamma and beta bands. A meaningful correlation was found between changes in the theta and alpha bands and changes in behavioral performance both during the dual task condition and after the conversation was finished, was also observed., Conclusions: The content of the conversation is one of the most important factors that increase the risk of road accidents. This can also deteriorate the behavioral performance of the driver and can have persistent effects on behavioral performance and the brain. Practical applications: The findings of this study provide a basis to measure and tracing drivers' cognitive distractions induced by different levels of mental workload through physiological and behavioral performances., (Copyright © 2020 National Safety Council and Elsevier Ltd. All rights reserved.)
- Published
- 2020
- Full Text
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28. Design, development and evaluation of microRNA-199a-5p detecting electrochemical nanobiosensor with diagnostic application in Triple Negative Breast Cancer.
- Author
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Ebrahimi A, Nikokar I, Zokaei M, and Bozorgzadeh E
- Subjects
- Biosensing Techniques instrumentation, Cell Line, Tumor, Electrodes, Equipment Design, Glass chemistry, Gold chemistry, Graphite chemistry, Humans, Limit of Detection, MicroRNAs blood, MicroRNAs chemistry, Nanotechnology instrumentation, Oxides chemistry, Biosensing Techniques methods, MicroRNAs analysis, Nanotechnology methods, Triple Negative Breast Neoplasms diagnosis
- Abstract
The new sensitive diagnostic method, electrochemical nanobiosensor, is applied to cancer detection by using specific biomarkers such as miRNA. Studies have shown that for the diagnosis of Triple Negative Breast Cancer (TNBC) patients, in the early stages of the disease, miR-199a-5p as circulating miRNA can be a suitable candidate. In this study, a new electrochemical nanobiosensor for serum miR-199a-5p detection was designed by using modified glassy carbon electrode (GCE) with graphene oxide (GO) and gold nanoroad (GNR) on which a thiolated probe was immobilized. The electrochemical impedance method (EIS) was used to examine the electrochemical characteristics and behavior of nanobiosensor and for verifying the nanomaterial synthesis the scanning electron microscope (SEM) were applied, field emission scanning electron microscope (FE-SEM), UV-Vis spectrophotometry and energy dispersive spectroscopy (EDS). Optimum conditions were investigated for designed nanobiosensor and in optimal conditions, following results were obtained; the linear range of the calibration curve from 15 fM to 148 pM, the detection limit of 4.5 fM, and the standard deviation of 2.9%. The research data showed that our designed electrochemical nanobiosensor has a sensitivity and desirable precision for evaluation of miR-199a-5p that can be used to measure low concentrations of miR-199a-5p in blood serum sample., (Copyright © 2018 Elsevier B.V. All rights reserved.)
- Published
- 2018
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29. Ultrasonic-assisted extraction and dispersive liquid-liquid microextraction combined with gas chromatography-mass spectrometry as an efficient and sensitive method for determining of acrylamide in potato chips samples.
- Author
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Zokaei M, Abedi AS, Kamankesh M, Shojaee-Aliababadi S, and Mohammadi A
- Subjects
- Limit of Detection, Acrylamide analysis, Food Analysis methods, Gas Chromatography-Mass Spectrometry, Liquid Phase Microextraction, Solanum tuberosum chemistry, Ultrasonics
- Abstract
In this research, for the first time, we successfully developed ultrasonic-assisted extraction and dispersive liquid-liquid microextraction combined with gas chromatography-mass spectrometry as a new, fast and highly sensitive method for determining of acrylamide in potato chips samples. Xanthydrol was used as a derivatization reagent and parameters affecting in the derivatization and microextraction steps were studied and optimized. Under optimum conditions, the calibration curves showed high levels of linearity (R
2 >0.9993) for acrylamide in the range of 2-500ngmL-1 . The relative standard deviation (RSD) for the seven analyses was 6.8%. The limit of detection (LOD) and limit of quantification (LOQ) were 0.6ngg-1 and 2ngg-1 , respectively. The UAE-DLLME-GC-MS method demonstrated high sensitivity, good linearity, recovery, and enrichment factor. The performance of the new proposed method was evaluated for the determination of acrylamide in various types of chips samples and satisfactory results were obtained., (Copyright © 2017 Elsevier Ltd. All rights reserved.)- Published
- 2017
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30. The Effect of Road Traffic Noise on Reaction Time.
- Author
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Alimohammadi I, Zokaei M, and Sandrock S
- Abstract
Background: Traffic noise is one of the main important sources in urban noise pollution, which causes various physiological and psychological effects that can cause disturbs in performance, sleep disturbances, hearing loss and impact on job performance. This study was conducted to verify the impact of road traffic noise on reaction time in terms of extraversion and sex., Methods: Traffic noise was measured and recorded in 10 arterial streets in Tehran, and then the recorded noise was emitted towards participants in an acoustic room. The participants were 80 (40 cases and 40 controls) students. Personality type was determined by Eysenck Personality Inventory (EPI) questioner. Reaction time before and after exposure to traffic noise was measured., Results: Reaction time before exposure to traffic noise did not differ (P=0.437) significantly between introverts and extraverts. However, it was increased significantly in both groups after exposure to traffic noise (P<0.01). Introvert's reaction time was more increased than that of extraverts., Conclusion: Traffic noise augmented reaction time of both males and females. This study also revealed that exposure to traffic noise leads to increase in reaction time.
- Published
- 2015
- Full Text
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31. Does noise reduction matter for curve fitting in growth curve models?
- Author
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Hassani H, Zokaei M, von Rosen D, Amiri S, and Ghodsi M
- Subjects
- Databases, Factual statistics & numerical data, Nonlinear Dynamics, Statistics, Nonparametric, Time Factors, Growth physiology, Models, Biological
- Abstract
In this paper, we discuss the efficiency of noise reduction for curve fitting in nonlinear growth curve models. We use singular spectrum analysis as a nonlinear-nonparametric denoising method. A set of longitudinal measurements is used in considering the performance of the method. We also use artificially generated data sets with and without noise for the purpose of validation of the results obtained in this study. The results show that noise reduction is important for curve fitting in growth curve models and also, that the singular spectrum analysis technique can be used as a powerful tool for noise reduction in longitudinal measurements.
- Published
- 2009
- Full Text
- View/download PDF
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