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Showing 14 results for Amini

Koohsar F, Amini A, Ayatollahi A A, Noshak Gh, Hedayatmofidi H S, Namjoo M,
Volume 6, Issue 1 (spring-summer[PERSIAN] 2012)
Abstract

Abstract Background and objectives: Food handlers could be the main sources of intestinal parasite transmission in case of not observing the hygienic rules. Contamination can be decreased by screening food handlers through physical exam and laboratory tests. The aim of this study was determining the prevalence of intestinal parasites in 2010. Material and Methods: This cross-sectional research was carried out on 500 randomly selected individuals engaged in different food related careers. After filling out the questionnaire sheets, two specimens of feces were collected from each person and tested by brine 30% (floatation) and direct methods. Result: The results show that the prevalence of intestinal parasites is 6%. The highest prevalence is relateted to Giardia lamblia ( 17 4.3%) and the lowest to Hymenolepis nana ( 3 0.6%). in the age group of 60-51 years (11.8%) and individuals who just able to read and write (7.4%) The highest percentage is observed. The Most contamination is reported in butchery staff (25%) and the lowest in people worked in butler's pantry, without parasitic infections. Conclusion: The prevalence of intestinal parasitic infections are high relatively, especially pathogenic protozoan therefore, it is important be careful about health status of these individuals and their role in the spread of pollution. Key words: Intestinal Parasites, Food Handlers, Prevalence, Gorgan
F Koohsar, A Amini, Aa Ayatollahi, F Niknejad, Z Abbasi Nejat,
Volume 7, Issue 3 (Autumn 2013)
Abstract

Abstract Background and Objective: In many countries, especially in developing countries, diarrheal diseases is one of the most important causes of mortality. In these countries, due to availability transfer conditions of parasitic infections, (pathogenic and non-pathogenic parasite), have a high prevalence. This study aimed was determining the prevalence of Parasites causing diarrhea in Gorgan . Material and Methods: This cross-sectional study was performed on 1086 Patients with acute diarrhea. The test was performing by the wetmount and formalin-ether concentration method according to WHO protocol. Results: From 1086 patients in study, 197 (18.1%) were infected by intestinal parasites, that 141 (13%) were infected with Protozoan and 79 (7.27%) were infected with intestinal worms. The prevalence of wet mount method was, Entamoebahistolytica in 69 (6.4%), Giardia lamblia in 27 (2.5%), Entamoeba coli in 15 (1.4%), Chilomastixmesnili in 8 (0.7%), and with formalin-ether method was Hymenolepis nana in 26 (2.4%), Trichostrongylus in 16 (1.5%), Enterobiusvermicularis in 10 (0.9%). Conclusion: The high prevalence of Entamoeba histolytica, is indicating protozoan importance as a cause of acute diarrhea. Keywords: Intestinal Parasites Diarrhea Wetmount Formalin Ether Gorgan
Mr Kiaei, M Hedayatmofidi, F Koohsar, A Amini, S Hoseinzadeh, A Mirbazel, Z Hesari,
Volume 8, Issue 1 (spring[PERSIAN] 2014)
Abstract

Abstract Background and Objective: C - reactive protein (CRP) is an acute phase protein produced in liver. It is less than 5 mg per deciliter in the serum and body fluids of normal individuals, but it is increased suddenly within a few hours following inflammatory reaction. In bacterial and viral infections, active rheumatic fever, acute myocardial infarction and rheumatoid arthritis are also increased. The aim of this study was to investigate CRP level by Qualitative and Quantitative methods. Material and Methods: The CRP of 200 patients was investigated by quantitative and qualitative methods. Qualitative CRP testing was conducted three times by different people, using two kit of bionic and Omega, and then the mean of the results was reported. For quantitative CRP testing, Immunoturbidimetry was used. Results: In qualitative CRP test by Bionic kit: 180 (90%) were negative, 6 (3%) weakly positive, 9 (4.5%) +1 and 5 (2.5 %) were + 2. In qualitative CRP test by Omega Kit: 148 (74%) were negative, 32 (16%) weakly positive, 13 (6.5%) +1, 4 (2%) +2 and 3 (1.5%) were +3. A high percentage of Qualitative results, which were weakly positive, became negative by Quantitative methods. The Qualitative results of +1 and the next became positive by Quantitative methods. Conclusion: It seems that in the early stages of inflammatory disease, quantitative methods are preferred to qualitative methods. Also, in cases that the CRP test results are weakly positive by qualitative methods, they should be controlled by quantitative methods too. Keywords: CRP CRP Test Quantitative Qualitative CRP Test
Kargar, M, Ebrahimi, E, Amini, J, Najafi, A, Kheirkhah, B,
Volume 8, Issue 4 (supplement Issue[PERSIAN] 2015)
Abstract

Abstract Background and Objective: Listeria monocytogenes is a bacterium transferred by foods and is the agent of many sporadic and epidemic diseases in humans. This study aimed to investigate the prevalence of L. monocytogenes and to determinine their antibiotic resistance profile in red meats. Material and Methods: this cross-sectional study was performed on 400 red meat samples obtained from industrial slaughterhouses placed in Kerman, Iran. First, the samples were enriched with Simultaneous Enrichment Broth (SEB), and then plated onto Palcam agar and Tryptic Soy Broth Yeast Extract Broth (TSAYE). After identification of the isolates based on biochemical tests and PCR, the isolates were checked for their antibiotic resistance profile using disk Diffusion Results: of 400 samples, 12 samples (3%) were contaminated with different species of Listeria. Using PCR, hly gene was recognized in eight samples (2%) of L. monocytogenes. Furthermore, there was a significant difference in isolation rate of lamb samples compared to cow ones. While all of the isolates were resistant to clindamycin, amikacin and chloramphenicol, they were sensitive to penicillin. Conclusion: in spite of low rate of infection in red meat samples in Kerman city, due to high risk of Listeria contamination in red meats, we recommend applying a routine screening to identify this bacterium in our county. Keywords: Listeria Monocytogenes, Hly Gene, Red Meat, Antibiotic, Kerman
Amini, M, Hosseini Doust, Sa, Mohabati Mobarez, A,
Volume 8, Issue 5 (winter[PERSIAN] 2015)
Abstract

Abstract Background and Objective: Staphylococcus aureus have been isolated frequently from the infection of blood, skin and soft tissue, and is one of the causative agents of food-borne illnesses. The purpose of this study was to investigate the occurrence of vanA in raw meat samples in Tehran, Iran. Material and Methods: Totally, 119 samples of chicken and turkey raw meat were cultured for Staphylococcus aureus. The Resistance to vancomycin was determined and Van A Gene detected by PCR method. Results: twenty- nine strains of Staphylococcus aureus were isolated. Of these, 14 (48.5%) were fully resistant to vancomycin and six of them had van A gene. Conclusion: Given that a large number of the samples were infected to VRSA and diversity of quality in production and distribution of foods and meat, the results could be varied. To avoid the transmission of antibiotic resistance chain to human, we should pay attention to make regulation and health conditions in production and distribution. Keywords: Staphylococcus Aureus, Vancomycin Resistance, Van A, Turkey Raw Meat, Chicken
N Puramini, A Movahedian, S Bordbar-Bonab, E Fattahi, A Mirza-Aghazadeh, A Bahrami, Sh Fattahi, H Dolatkhah,
Volume 8, Issue 5 (winter[PERSIAN] 2015)
Abstract

Abstract Background and Objective: Recently, diabetes mellitus has been known as one of the main cause of upper gastrointestinal symptoms. Since a high prevalence of H. Pylori in diabetic patients has been reported, we aimed to evaluate the level of gastric juice Nitric Oxide (NO°), Oxidative Stress and Glycated Hemoglobin. Material and Methods: In case group, the participants were 60 diabetic patients infected with H. Pylori, and in control groups 60 diabetic patients without H. Pylori and 60 healthy individuals. The level of NO° in gastric juice was measured calorimetrically and the activity of superoxide dismutase (SOD) and glutathione peroxidase (GPX) in gastric biopsy was determined using standard methods. The percentage of Glycated Hemoglobin (HbA1C) was measured by ion exchange chromatography. Results: In case group compared to controls, significantly increased level of blood HbA1C, nitric oxide in gastric juice, activity of SOD and GPX in the gastric mucosa were observed (p<0.0001). Conclusion: A significant increase of glycated hemoglobin in diabetic patients with H. Pylori and high activity of antioxidant enzymes in the case group may indicate a high production of reactive oxygen species and the presence of oxidative stress in these patients. Key Words: Diabetes Mellitus, H. Pylori Infection, Glycated Hb, Nitric Oxide, Oxidative Stress
Ayatollahi, Aa, Amini, A, Rahimi, S, Kiaei, M, Koohsar, F, Khandan Del, A,
Volume 9, Issue 2 (may,jun 2015[PERSIAN] 2015)
Abstract

Abstract

Background and Objective: Nosocomial infection is one of the main factors of mortality in hospitals . One of the most important measures to control infection in hospitals  is sampling of equipment and  culturing the samples . This study aimed to investigate the prevalence of gram-negative bacilli obtained from the equipment of the hospital wards .

Material and Methods: This Descriptive study was carried out on 488 specimens taken from medical and non-medical devices and equipment of various wards, via census sampling. the samples taken by sterile swabs in Tryptic Soy Broth (TSB) were inoculated in blood agar and Eosin-Methylene Blue agar, and by biochemical standard tests the isolated colonies  were identified.

Results: Of 488 isolates, 157 (32.17%) were positive for the presence of gram-negative bacilli. The highest bacterial contamination was related to Enterobacter (37.58%). Of  hospital wards, the highest infection related to the surgical wards (19.75%), and the highest contamination is related to laryngoscope blades (12.74%) and ECG sensor device and the monitoring interface (7%).

Conclusion: Microbial infection with gram-negative bacilli  is an overwhelming condition  in hospital equipment.

Key Words: Gram Negative Bacilli, Nosocomial Infection, hospital wards, hospital equipments, Gorgan


Sadeghi, M, Amini, A, Behnampour, N, Ghasemi, Sm, Arefian, A., Mohajer, S,
Volume 9, Issue 2 (may,jun 2015[PERSIAN] 2015)
Abstract

Abstract

Background and Objective: Staphylococcus aureus is an important cause of food poisoning. Due to the high consumption of fruit and ice cream in summer, this study aimed to determine the prevalence of S. aureus in traditional ice cream and juice in Gorgan, Iran.

Material and Methods: This cross-sectional study was conducted  on 25 places selling traditional ice cream and juice in the summer  of 2014 in Gorgan, Iran.

Results: Results showed that  the microbial contaminants  in traditional ice cream and  juice  centers  were  56%  and 14.28% of S. aureus, 44% and 33.3%  of  yeast, 28% and 28.57%  of B. cereus, 12% and 4.76%  of  Listeria, 8% and 14.28% of Bacillus subtilis and  4% and 4.76%  of  Bacillus licheniformis ,respectively.

Conclusion: The findings of this study indicated a high  contamination of traditional ice cream and juice with Staphylococcus aureus and various microorganisms.

Keywords: Ice Cream, Food Contamination, Staphylococcus Aureus


Mohammad Mohammaddoost Chakoosari, Mohammad Faezi Ghasemi, Alireza Masiha, Reza Kazemi Darsanaki, Abolfazl Amini,
Volume 9, Issue 5 (Nov,Dec-2015 2015)
Abstract

Abstract

      Background and Objective: Probiotics are living microorganisms that have beneficial effects on the health of digestive system. The aim of this study was to evaluate the antimicrobial ability of acidic and neutral supernatants (culture supernatant) of lactic acid bacteria against common bacterial pathogens.

       Methods: Four species of lactic acid bacteria (Lactobacillus plantarum PTCC1745, Lactobacillus PTCC1608, Lactobacillus Saki PTCC1712 and Lactobacillus Lactis PTCC1336) were obtained from the microbial collection of Iranian Research Organization for Science and Technology in Lyophilized form. The antimicrobial activity of neutral and acidic supernatants against bacterial pathogens was investigated using the Disk and Well Diffusion Agar methods.

      Results: Lactic acid bacteria showed good antimicrobial ability against six pathogenic bacteria with the highest inhibitory effect observed in Lactococcus lactis against E. coli PTCC1399 through well method with an average diameter of 14 mm inhibition zone. In this study, the well diffusion method was far more sensitive compared to the disk method and acidic supernatants showed higher antimicrobial efficiency compared to neutral types.

      Conclusion:  the Metabolites produced by lactic acid bacteria are able to inhibit the growth of pathogenic bacteria that can be an important and practical solution for the prevention and treatment of infections and ultimately improve human health.


Sepideh Yamini, Zohre Eftekhari, Mohammad Reza Mokhber Dezfouli, Babak Beikzadeh, Parvane Mehrbod,
Volume 13, Issue 6 (Nov-Dec 2019)
Abstract

ABSTRACT
           Background and Objectives: Exogenous lung surfactant (ELS) obtained from extraction of bronchoalveolar lavage fluid, is prescribed in some respiratory disorders, which could affect production of lung-related cytokines. Interleukin-8 (IL-8) is a major cytokine that could affect severity of lung diseases. In this study, we investigate the possible impact of ELS on IL-8 expression, hematological parameters and IgG and IgM levels in rabbits.
           Methods: ELS solution obtained from fresh calf’s lung bronchoalveolar lavage was infused into the lungs of five rabbits via tracheal tube. Blood samples were collected before and after ELS treatment for 30 days.
           Results: Serum IL-8 levels decreased over time following ELS administration. IL-8 expression also decreased after exposure to ELS, but leukocytes count increased significantly 24, 48 and 72 hours after ELS therapy compared to baseline values (P<0.05). IgM level increased significantly 72 hours after the ELS therapy and returned to normal range at the end of study.
           Conclusion: Our findings suggest that ELS could down-regulate IL-8 expression in mononuclear cells while increasing leukocytes population and total immunoglobulins level, which can trigger immune responses without lung damage. However, further studies should be performed to confirm the regulatory effects of ELS on inflammatory responses in lung diseases.
           Keywords: Exogenous lung surfactant, IL-8, Immunoglobulins.

Zahra Mirshekar, Nasser Behnampour, Abolfazl Amini, Ghazal Alizad, Ghorban Mohammad Kouchaki, Farhad Niknejad,
Volume 14, Issue 4 (Jul-Aug 2020)
Abstract

Background and objectives: Aspergillosis is a widely distributed infectious disease, which is difficult to manage. According to recent studies, the prevalence of resistant Aspergillus fumigatus has increased from 3.3% to 6.6%. Acquired triazole resistance in Aspergillus species is an evolving global health challenge, which has made the control of diseases caused by Aspergillus a concern. This study was performed to investigate prevalence of azole resistance in Aspergillus isolates from environmental samples.
      Methods: In this study, 316 soil samples were collected from three hospitals and a university campus in Gorgan (Iran) from July to September 2017. Two grams of each sample were suspended in 5 ml of 0.2M NaCl with 1% Tween 20. Then, 100 µl of the suspension was plated on sabouraud dextrose agar (SDA) supplemented with chloramphenicol, SDA supplemented with chloramphenicol and voriconazole (VOR, 1 mg/L) and SDA supplemented with chloramphenicol and itraconazole (ITC, 4 mg/L). The plates were incubated at 37 °C and examined for growth after 24, 48 and 72 hours.
      Results: We detected Aspergillus fumigatus, Aspergillus flavus, Aspergillus niger and Aspergillus nidulans isolates in 187(59.2%), 84(26.6%), 147(46.5%) and 65(20.6%) samples, respectively. We found no VOR resistant isolate. However, 21 (25%) A. flavus and 16 (8.6%) A. fumigatus isolates were intermediate for VOR. In addition, seven (8.3%) A. flavus, 68 (36.4%) A. fumigatus, 41 (27.9%) A. niger and three (4.5%) A. nidulans isolates were resistant to ITC.
      Conclusion: We were able to detect A.fumigatus, A. flavus, A. niger from all four sampling sites in Gorgan, North of Iran. A. fumigatus is the most prevalent and most resistant isolate in the studied area. History of previous agriculture activity and use of pesticides in the proximity of sampling sites may have affected the rate of ITC resistance.

Farnaz Aminian, Mahmood Hejazi, Sadegh Cheragh Birjandi,
Volume 14, Issue 5 (Sep-Oct 2020)
Abstract

Background and objectives: Evidence suggests that decrease in the serum concentration of myostatin (MSTN) may reduce age-related decrement in muscle mass, especially in older individuals. This study aimed at investigating the effects of 12 weeks of resistance training with and without blood flow restriction on MSTN and muscular strength (MS) of elderly women.
Methods: Thirty elderly women were randomly assigned into three groups of resistance training with blood flow restriction (n=10), resistance training without blood flow restriction (n=10) and control (n=10). The resistance training intervention was carried out three sessions a week for 12 weeks. Body composition, MS and serum concentrations MSTN were assessed at baseline and 48-36 hours after the last training session.
Results: There was a significant time × group difference in MS following 12 weeks of exercise intervention (P=0.001). However, there was no significant group and time × group difference in MSTN concentrations (P=0.2).
Conclusion: Low intensity BFRT does not decrease MSTN concentrations in elderly women. However, low intensity BFRT can increase MS values in these individuals.
Farnaz Aminian, Seyyed Mahmood Hejazi, Sadegh Cheragh Birjandi,
Volume 15, Issue 3 (May-Jun 2021)
Abstract

Background and objectives: Blood flow restriction training (BFRT) has gained substantial interest due to the lower required intensity, which may be beneficial for individuals who are not able to lift heavy weights. Therefore, we aimed at evaluating effects of 12 weeks of resistance training with and without blood flow restriction on follistatin (FST) concentrations and physical performance in elderly females.
Methods: Thirty elderly female were randomly assigned into the following groups: resistance training with blood flow restriction (BFRT; n=10), resistance training without blood flow restriction (WBFRT; n=10) and control ( n=10). The resistance training was carried out three session a week for 12 weeks. Serum concentrations of FST, muscular endurance and dynamic balance were assessed at baseline and after the 12week intervention.
Results: Significant main effects of time were observed for FST (p =0.03, η2 = 0.15), muscular endurance (p = 0.00, η2 = 0.59) and dynamic balance (p=0.00, η2 = 0.57). FST [BFRT= 1.4 ng/ml (effect size Cohen’s {d} = -0.8) significantly increased only in BFRT group. However, muscular endurance [BFRT= 95 (d= -4.1) and WBFRT = 32 (d= -0.9)] significantly increased in both intervention groups (P<0.05). In addition, dynamic balance [BFRT= -0.5 seconds (d= 2.2)] significantly increased only in the BFRT group (P<0.05).
Conclusion: BFRT was able to increase FST concentrations. Due to its mechanistic role in muscle mass alterations, elderly females can incorporate our BFRT protocol to improve anabolic conditions for muscular adaptations. 
Fatemeh Ahamdi, Elham Siasi Torbati, Kumarss Amini,
Volume 17, Issue 1 (Jan-Feb 2023)
Abstract

Background and objectives: Enterococcus faecium is a normal flora of gut microbiota. This opportunistic pathogen has attracted much attention due to its multidrug resistance and ability to survive in hostile environments. Various molecular typing methods such as pulsed-field gel electrophoresis or ribotyping have been developed for clinical and epidemiological investigation of these bacteria. However, these methods are time-consuming and labor-intensive. The present study was conducted to evaluate the discriminatory power of two common fingerprinting methods i.e. BOX-polymerase chain reaction (PCR) and enterobacterial repetitive intergenic consensus (ERIC)-PCR for E. faecium clinical isolates.
Methods: Fifty multidrug-resistant E. faecium isolates were isolated from 74 clinical specimens. The isolates were identified by specific 16S rRNA PCR. All isolates were fingerprinted using BOX-PCR and ERIC PCR. The discriminatory power and reproducibility of these two methods were also assessed.
Results: According to the dendrogram with >60% similarity, 17 different genotypes were observed using ERIC PCR. In addition, BOX-PCR produced 22 distinct patterns at a genetic distance percentage of 60%, with sizes ranging from 278 bp to 1450 bp. The discrimination index of BOX-PCR was higher than that of ERIC-PCR.
Conclusion: We concluded that a combination of ERIC-PCR and BOX-PCR may be a quicker and more reliable alternative for the discrimination of E. faecium clinical isolates.

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