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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: VETERINARY RESEARCH FORUM
- نوع مقاله: Journal Article
- کلمات کلیدی: Genotype,Helicobacter pylori,meat,Butchery,slaughterhouse
- چکیده:
- چکیده انگلیسی: Foods with animal origins play a substantial role in the transmission of Helicobacter pylori. The present investigation was carried out to study the vacA and cagA genotypes status of H. pylori isolated from various types of meat samples. Two hundred and twenty meat samples were collected and cultured. H. pylori-positive strains were analyzed for the presence of vacA and cagA genotypes. Eleven out of 220 (5.00%) samples were positive for H. pylori. Findings were confirmed by nested PCR. Prevalence of H. pylori in the meat samples of slaughterhouses and butcheries were 72.20% and 27.70%, respectively. The most commonly detected genotypes in the meat samples of slaughterhouses and butcheries were vacA m1a (66.66%) and vacA s1a (37.50%), respectively. The S1am1a was the most commonly detected genotype. Meat sampled from butcheries had the higher prevalence of H. pylori and its genotypes than those of slaughterhouses (p < 0.05). Results showed that meat samples could be the potential sources of virulent strains of H. pylori. Application of sanitary measures in the storage, transportation and sale of meat is essential for reducing the levels of H. pylori cross contamination.
- انتشار مقاله: 24-11-1395
- نویسندگان: Ali Gilani,Vadood Razavilar,Nordahr Rokni Rokni,Ebrahim Rahimi
- مشاهده
- جایگاه : پژوهشی
- مجله: VETERINARY RESEARCH FORUM
- نوع مقاله: Journal Article
- کلمات کلیدی: Iran,Escherichia coli O157:H7/NM,Raw meat,Enterohemorrhagic Escherichia coli
- چکیده:
- چکیده انگلیسی: Enterohemorrhagic Escherichia coli (EHEC) of the O157:H7 serotype is a worldwide zoonotic pathogen responsible for the majority of severe cases of human EHEC disease. The aim of the present study was to investigate the prevalence of E. coli O157: H7/NM in raw meat samples from two provinces of Iran. During a period from March 2010 to March 2011. Two hundred and ninety five raw meat samples were collected from beef (n= 85), camel, (n= 50), sheep (n= 62), goat (n= 60), and water buffalo (n=38). Fourteen (4.7%) of the 295 samples were positive for E. coli O157. The highest prevalence of E. coli O157 was found in beef samples (8.2%), followed by water buffalo (5.3%), sheep (4.8%), camel (2.0%), and goat (1.7%). Of fourteen E. coli O157 isolates, only one was determined to be serotype O157: H7 while 13 were determined as serotype O157: NM. Of the 14 E. coli O157:H7/NM isolates, one, four, two, and one strains were positive for stx1, stx2, eaeA and ehlyA genes, respectively. The prevalence of this organism varied between seasons with the highest prevalence of E. coli O157 occurring in summer (9.3%). The results of this study showed that beef and water buffalo meat are a significant source for human EHEC E. coli O157:H7/NM infection in Iran. The data reported in this study provides some useful baseline in formation for future research such as molecular or epidemiologic works.
- انتشار مقاله: 08-10-1391
- نویسندگان: Ebrahim Rahimi,Hamid Reza Kazemeini,Mohammad Salajegheh
- مشاهده
- جایگاه : پژوهشی
- مجله: Pistachio and Health Journal
- نوع مقاله: Journal Article
- کلمات کلیدی: Rat,Antioxidant,Pistacia vera,Muscle Fatigue
- چکیده:
- چکیده انگلیسی: Background: Oxidative stress and free radicals play a crucial role in muscle fatigue. Pistacia vera (P. vera) contains many
antioxidant substances such as coenzyme Q-10, vitamin E and beta-carotene. The current study has been designed to evaluate
the effects of P. vera seeds (pistachios) on skeletal muscle fatigue in male Wistar rats.
Materials and methods: 50 Male Wistar rats were randomly divided into five groups, including the normal, vehicle and
treated groups of pistachio extracts (10, 100, and 1000 mg/kg). Muscle fatigue was induced by treadmills. Animals would run
at the speed of 20 m/min on a treadmill until they showed fatigue signs. This protocol was repeated for 10 days. The hydroalcoholic extracts of pistachios were gavaged 30 minutes before the induction of muscle fatigue every day. On the 11th day, rats
were sacrificed and biochemical parameters such as creatine phospho-kinase (CPK), lactate dehydrogenase (LDH) and aspartate
aminotransferase (AST) levels were measured in the plasma.
Results: The different doses of the pistachio extract led to an increase in the fatigue time on days 2 (100 mg/kg) (p<0.05), 4
(10 and 100 mg/kg) (all p<0.05), 5 (10 and 1000 mg/kg) (all p<0.05), 7 (10 and 1000 mg/kg) (all p<0.05) and 9 (100 mg/kg)
(p<0.05). The induction of muscle fatigue led to an increase in the serum activity of CPK, LDH and AST (all p<0.01). The
pistachio extract (10 and 100 mg/kg) decreased the serum activities of LDH and AST (all p<0.05).
Conclusion: According to the results of this study, it was concluded that pistachios could decrease skeletal muscle fatigue in male Wistar rats.
- انتشار مقاله: 01-02-1397
- نویسندگان: Fariba Khatami,Zahra Hadadianpour,Amir Rahnama,Soheyla Ebrahimi Vosta Kalaee Ebrahimi Vosta Kalaee,Iman Fatemi,Ali Shamsizadeh
- مشاهده
- جایگاه : پژوهشی
- مجله: Journal of Renewable Energy and Environment
- نوع مقاله: Journal Article
- کلمات کلیدی: Exergy,Biodiesel,Renewable energy,Energy Consumption,rapeseed
- چکیده:
- چکیده انگلیسی: Due to limited oil reserves, the rising world fuel prices and environmental problems caused by the use of fossil fuels increase the tendency to use alternative fuels such as biodiesel and bioethanol. In this study, the evaluation of energy and exergy flow from seed planting to final production of biodiesel from rapeseed oil was carried out. Biodiesel production from rapeseed was made in three main phases: farm, oil extraction, and industrial biodiesel production. Initially, the input and output variables for rapeseed production were collected through questionnaires from 30 rapeseed farms in Khuzestan province, Iran. Thus, the amount of energy input and output to the field for rapeseed was estimated to be 12826.98 and 22195 MJ/ha, respectively. The highest energy consumption is related to chemical fertilizers with 65 % share of other inputs. Input and output exergy rates were obtained as 3933.494 and 22603.39 MJ/ha, respectively, and the highest exergy consumption related to diesel fuel with 58 % share of other inputs. At the biodiesel production stage, the input energy and output energy were 156.95 MJ and 41.88 MJ, respectively, and the highest amount of electricity consumed was 91.02 MJ. The total amount of exergy in the production of biodiesel and the output exergy was 48.412 MJ and 64.568 MJ, respectively. In this study, the effects of alcohol-to-oil molar ratio, ultrasound power (W), catalyst concentration (w/w %), and the reaction time (min) on methyl ester yield using response surface methodology based on Box Behnken experimental design in the Design Expert software were investigated. Finally, gas emissions were studied at the planting and biodiesel production stages, and the resultsshowed that the highest greenhouse gas emissions at the planting stage were related to chemical fertilizers and alcohol production.
- انتشار مقاله: 08-11-1398
- نویسندگان: Bahram Hosseinzadeh Samani,Marziyeh Ansari Samani,Rahim Ebrahimi,Zahra Esmaeili,Ali Ansari Ardali
- مشاهده
- جایگاه : پژوهشی
- مجله: Journal of Health Sciences and Surveillance System
- نوع مقاله: Journal Article
- کلمات کلیدی: Emergency,Disaster,Hospital Management,preparedness
- چکیده:
- چکیده انگلیسی: Background: Iran is among the top ten disaster-prone countries in the world because of its size, geographical location, and climatic diversity. Practically, the healthcare sector is an active part in disaster management and an integral part of the national health plan. This study aimed to determine the preparedness of the personnel to cope with natural disasters in Valiasr Hospital of Mamasani, Iran. Methods: This cross-sectional study was conducted in Valiasr Hospital, which has 100 beds. Data were collected using a 210-item researcher-made checklist. For each target, six domains of equipment, human resources, structure, physical space, protocol, and performance charts were considered. Face and content validities were used to confirm the validity and reliability of the questionnaire. Results: The results of this study showed that the support unit scored the highest (69.45 %), followed by the command and management (66.16%) and education units (66%), respectively. Security units (51%), transportation (41.47%), and evacuation (40%) received the lowest score, respectively. Conclusion: The findings showed that the hospital under the study was in moderate level in preparedness for disaster. Improving the preparedness of hospitals for disasters will be possible with proper management of available resources and the use of update technologies.
- انتشار مقاله: 22-04-1399
- نویسندگان: Masoud Yousefi,Nasrin Razmjoee,Ebrahim Rahimi,Mohammad Ansarizadeh,Kourosh Rahmani
- مشاهده
- جایگاه : پژوهشی
- مجله: Journal of Chemical Health Risks
- نوع مقاله: Journal Article
- کلمات کلیدی: Liver,Florfenicol,ELISA,Rainbow trout,Muscle
- چکیده:
- چکیده انگلیسی: Florfenicol is a broad-spectrum antibiotic, widely used in veterinary medicine. The aim of this study was to determine florfenicol residues in the muscle and liver of cultured rainbow trout in Iran by ELISA. The samples were collected from three areas (Kiar, Ardal, and Koohrang), considered as areas with high production of trout in the western part of Iran. Sampling was completed during the spring and summer of 2011. All of the samples were categorized into three weight groups (below 50g, 50 to150g and over 150g) and five individuals were randomly selected from fish belonged to each weigh group, and then collected samples sent for determination of antibiotic residues. The highest and the lowest antibiotic residues were 31.42±53.52 ng g-1 (>150 g fish) and 10.35±2.33 ng g-1 (<50 g fish) for liver samples and 48.84±50.36 ng g-1 (50-150 g fish) and 18.20±15.41 ng g-1 (> 150 g fish) for muscle samples, respectively. In different areas, the highest antibiotic levels were found in Koohrang and Ardal with mean of 37.00±63.61 and 15.33±10.45 ng g-1 for liver samples and 40.74±40.80 and 28.24±45.91ng g-1 for muscle samples. The results indicated that florfenicol residues are lower than the maximum permissible level has been announced by the European Union.
- انتشار مقاله: 24-06-1394
- نویسندگان: Firooz Fadaeifard,Ebrahim Rahimi,Mehdi Raissy,Mostafa Faghani
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of Advanced Biological and Biomedical Research
- نوع مقاله: Journal Article
- کلمات کلیدی: Isfahan,Clostridium difficile,Ostrich-Turkey
- چکیده:
- چکیده انگلیسی: Clostridium difficileisa binding warm-positive rod and anaerobic organism, which was first described in 1935 as Bacillus difficile. Epidemiology of CDI has changed considerably on 2000. Occurrence and severity of the disease including ulcerative colitis(inflammation of the colon), colectomy(colon section) and mortality had increased. Recent studies have reported Clostridium difficile prevalence in animal foods ,act as a source of infection for humans, its source can regarded as a contaminate food, infecting dose and the relationship between food contamination and disease. Clostridium difficile causes critical disease in humans. So, this study by the aim of evaluation of possible contamination of turkey and ostrich meat to the pathogen was designed and implemented. To conduct this study, a total of 240 samples of raw ostrich meat (n=120) and Turkey (n=120) purchased randomly of meat stores of Isfahan- Iran and then transferred to the Laboratory of Infectious and Tropical Diseases Research Center, Isfahan University, evaluated regarding existence of Clostridium difficile by enrichment method and then culture on CDMN medium under anaerobic conditions and biochemical tests and observations of warm staining. In this study, a total of 240 samples, 25 samples(10/41%) were carrier of C.difficile. of 11 of 120 ostrich meat samples(9/16%) and 14 samples out of 120 samples of turkey meat (11/66%) Clostridium difficile was isolated. Clostridium difficile in turkey and ostrich meat sold in stores in Isfahan - Iran is isolated and thus a potential risk to humans especially through meat consumption are microorganisms
- انتشار مقاله: 27-05-1393
- نویسندگان: Asghar Hasanzade,Ebrahim Rahimi
- مشاهده
- جایگاه : پژوهشی
- مجله: Advances in Mathematical Finance and Application
- نوع مقاله: Journal Article
- کلمات کلیدی: Credit Risk,Expert systems,Fuzzy mathematics,Credit rating
- چکیده:
- چکیده انگلیسی: Currently, in Iran's banking system, non-repayment of facilities has become one of the biggest issues, and due to the lack of a proper system for proper allocation of facilities, they face a number of problems, including the problem of allocation of loans, the problem of failure to repay loans Of the central bank, or the amount of facilities increased from the amount of reimbursement. The solution of this problem is the credit rating of the customers, which is based on a model based on the theory of fuzzy sets for validation of real customers of the Maskan bank of the East Azer-baijan in Iran in 2016. In this research a structured model was obtained for deter-mination and categorization of input variables for application in the system by factorial analysis then a expert fuzzy system was modelled that consist of six steps. In the first step a fuzzy system is designed that its inputs are financial capacity, support, reliability, repayment record and its outputs is customer credit. In the second step input and outputs are partitioned, in the third step thee partitioned inputs and outputs are converted into fuzzy numbers. The fuzzy inference is compiled in step four. In step five the defuzzifier is conducted. Finally the designed model is tested in step six. These results indicate research model efficiency compared to bank credit measuring experts that they predicate applicants performance according their judgment and intuition.
- انتشار مقاله: 12-08-1397
- نویسندگان: Mohammadreza Abbasi Astamal,Rahim Rahimi
- مشاهده