Showing 14 results for Rezaei
A Mikaeili, M Rezaei,
Volume 1, Issue 2 (Autumn – Winter 2008[PERSIAN] 2007)
Abstract
Abstract Background and objectives: Dematophytosis, which is one of the most common human infections , is a communicable disease mainly transmitted by human. Lifting and wrestling gyms and Swimming pools have high potential to transfer this infection therefore, we decided to perform this descriptive study. Materials and methods: 1030 Samples taken from different parts of lifting and wrestling gyms and swimming pools were cultured in dermatophytic medium(mycobiotic agar) incubated to a temperature of 30 degrees centigrade and with macroscopic and microscopic character dermatophytes spp were established. Results: of 300 samples taken from wrestling gyms, four Epidermophyton floocosum and of 700 Samples taken from Swimming pools four Epidermophyton floocosum and one Trichophyton Verrucosum were isolated but all Samples of weight lifting gyms were negative. Conclusion: Epidermophyton, which is the most Common Dermatophyte Isolated from sport gyms, is the main cause of skin infections There fore, by preventing infected persons from using these public places and considering the hygienic points can reduce dermatophytosis. Key word: Pool, Sport gyms, Kermanshah, Dermatophytes Journal
Rezaei Ma, Ghahramani F,
Volume 5, Issue 1 (spring-summer[PERSIAN] 2011)
Abstract
Abstract Background and objectives: Acquired immune deficiency syndrome(AIDS) is one of the most well-known disease in the world .It is not only A heaththrapeutic problem but also with politic ,social, cultural and economic aspects. Paying attention to high-risk groups such as Lab staff is important. we decided to study and compare the knowledge of public and private Laboratories staff. Material and Methods: This cross sectional study, descriptive-analytic,was conducted on 350 personnel of private laboratories and educational centers of Shiraz University of Medical Sciences,2011.We collected Information by using a questionnaire including three parts of demographic characteristic questions, questions about knowledge in different fields of AIDS and those related to the performance of personnel. The results were reported as tables and graphs and analyzed by ANOVA,t-test and square. Results: The data, in different areas of AIDS, in public and private laboratories are similar and the difference statistically is not significant. Regarding to symptoms and treatment, the knowledge of privale Lab staff is higher than stste ones and this difference is significant (P=0.01).As a whole,the results show the knowledge of staff about the transmission modes(92.7%),the pathologic agent(99.2%),at risk people (61.2%)and preventive measure (53.1%).both group have good practice in wearing gloves and using disposable syringes.Regarding to disposing infectious waste material,private and state center practice are 92.6% and 77%,respectively. Conclusion: Based on the result,the knowledge relating to preventive procedures and at risk people of AIDS is not enough.Thereforeit is a necessity to hold in service training for Lab staff,stressing on disposing infectious waste materials. Key words: AIDS, laboratory personnel, knowledge, practice
Saadatmand M M (msc), Yazdanshenas M E (phd), Rezaei-Zarchi S (phd), Yousefi-Telori B (bsc), Negahdary M (msc),
Volume 6, Issue 1 (spring-summer[PERSIAN] 2012)
Abstract
Abstract Background and objectives: In this research, the formation of chitosan-TiO2 nanocomposite and its antibacterial effect on Escherichia coli and staphylococcus aureus was investigated Material and Methods: to study the results, we used Scanning electron microscopy (SEM) and transition electron microscopy (TEM) images, infrared (IR) spectroscopy and ultraviolet-visible. Optical Density (OD) was also measured by spectrophotometer then the effect of this nano composite, in the vicinity of aforementioned bacteria, on the sterilized gauze in solid Muller Hinton Agar and TSB liquid mediums was assessed Results: The mentioned nanocomposite was formed with the composition of 4mg/ml Chitosan concentration and 2% titanium dioxide concentration. Finally, we observed that this nanocomposite near 100% could prevent bacterial growth and in the presence of this material did not grow any bacteria. Conclusion: chitosan-Tio2 Nanocomposite can be useful on culture medium and sterilized gauze to control pathologic bacteria. Key words: nanocomposite, nanochitosan, titanium dioxide, antibacterial, sterilized gauze
B Rahimi-Esboei, M Fakhar, A Ghorbani, M Pour Haji Baqer, As Paqeh, P Shahnasi, M Rezaei,
Volume 7, Issue 2 (summer[PERSIAN] 2013)
Abstract
Abstract
Background and Objective: Cercarial dermatitis (CD) or swimmer’s itch is a severe inflammatory reaction caused by penetration of the skin by avian and herbivorous schistosomes, esp genus Trichobilharzia. Since both intermediate and final host of this parasite exist in North of Iran, we aimed at determining the prevalence of cercarial dermatitis among paddy-field workers in Central areas of Mazandaran Province.
Material and Methods: To perform this descriptive-cross sectional study, we refer to bird refuges of migrating water and Paddy-field around man-made ponds of Babol, Sari, Ghaemshahr and Savadkoh districts. The Hand and foot of the farmers were examined clinically for detection of infected people and their signs and symptoms were recorded on a sheet of paper.
Results: Based on the results, 77.5 % of the workers suffer from CD. All of them are males and the majority of them are indigenous.
Conclusion: High prevalence of Cercarial dermatitis among paddy-field workers led to a health dilemma. Thus, by increasing awareness of farmers, implementing suitable approaches, controlling the disease and sanitizing the contaminated areas can promote health situation.
Key Words: Trichobilharzia Avian Schistosomiasis Cercaria Dermatitis Paddy-Field Workers Itch
Ms Shirakdehi, M Rezaei, E Nadi, H Mahjoub, Mt Goodarzi,
Volume 8, Issue 1 (spring[PERSIAN] 2014)
Abstract
Abstract
Background and Objective: Oxidant-antioxidant imbalance plays a key role in pathogenesis of chronic obstructive pulmonary disease (COPD). This study aimed to evaluate homocystiene and total antioxidant capacity in COPD patients, compared to smoker and non-smoker healthy people.
Material and Methods: We measured total antioxidant capacity with Cayman Kit, uric acid with Pars Azmoon kit٫ homocysteine with ELISA Kit and inflammatory cells (leukocytes) in 29 COPD patients, 29 smokers and 29 non-smokers.
Results: Uric acid was significantly higher in COPD patients compared to healthy smokers and healthy non-smokers (p<0.05). Total antioxidant capacity was significantly lower in COPD patients compared to healthy, non smokers (p=0. 003). In COPD patients, homocysteine and leukocytes levels were significantly higher than those in healthy smokers (P<0.05) and healthy non- smokers (p<0.001).
Conclusion: According to high inflammatory cells and low antioxidant capacity in COPD, early administration of appropriate medication is recommended to reduce systemic and topical inflammation. Reduction in the exposure to oxidizing compounds can slow the process of degradation and damage to lungs.
Keywords: Chronic Obstructive Pulmonary Disease Homocysteine Oxidative Stress
M Javadzadeh, M Najafi, M Rezaei, M Dastoor, Aa Behzadi, A Amiri,
Volume 8, Issue 2 (summer 2014[PERSIAN] 2014)
Abstract
Abstract
Background and Objective: Honey is a healthy and nutritious food that has been used for a long time as a treatment for different diseases. One of the applied properties of honey is its antimicrobial effect, which differs between different types of honey due to variation of phenolic and antioxidant compositions. This study aimed to assess antimicrobial effect of honey on Bacillus cereus, considering its chemical properties.
Material and Methods: Three samples of honey (A1 and A2 of Khorasan Razavi Province and A3 of South Khorasan province (were prepared and studied in terms of chemical parameters .The antibacterial effect of honey was surveyed throughTurbidimeter using spectrometer with incubator time of 2, 4, 6, and 8hrs. the level of turbidity caused by bacterium growth was measured at different times with a wavelength of 600nm.
Results: According to the study, the samples containing higher concentration of polyphenol has more antimicrobial activity. The samples of A2, A3, and A1 had the highest concentration of polyphenol, respectively.
Conclusion: The results indicate the prebiotic effect of honey that can be justified by the presence of fructo-oligosacharids and vitamin B.
Keywords: Honey, Bacillus Cereus, Antibacterial, Turbidimetry.
M Rezaei, R Ghasemi Khah, M Parviz, O Zarei,
Volume 8, Issue 2 (summer 2014[PERSIAN] 2014)
Abstract
Abstract Background and Objective: Ice cream is a suitable environment for microbial growth due to its chemical structure, ingredients, and its increased supply and demand. In the absence of hygienic considerations, it can cause poisoning. This study aimed to determine bacterial contamination in traditional ice cream produced in Arak city in 2011. Material and Methods: The samples (n= 30) were randomly obtained from different parts of Arak in, 2011. The Samples were shipped in cold conditions and total count of microorganisms test was performed according to Iranian national standards. Results: In 16.66%, the microbial contamination was below the limit of microbial load (5×104), and in 83.3% the contamination was more than allowed level. Conclusion: This study highlights the dire situation for bacterial contamination of traditional ice cream in Arak city. Keywords: Arak, Ice Cream, Microbial Contamination
Rezaei, M, Shariatifar, N., Parviz, M. (dvm), Behzadi, Aa,
Volume 9, Issue 2 (may,jun 2015[PERSIAN] 2015)
Abstract
Background and Objective: The presence of microorganisms in food is a paramount importance to public health. This study was carried out to measure the rate of microbial contamination of the hamburgers consumed in Arak.
Material and Methods: The samples of frozen hamburgers ( n= 100) were collected from the selling centers in Arak. The city was divided into five areas and 20 samples were collecte from each area. The experiments of counting staphylococcus aureus with Iranian National No 6806-6, the total counting of bacteria No. 5272 and the counting mould and yeast with No 997 were carried out.
Results: the samples polluted by staphylococcus aureus were 26.6%. , 61.3% of the samples were higher than the required standard and 65% of the samples were higher than the required standard in Iran. The rate of staphylococcus aureus in the samples was 6×103 CFU/gr on average and the total counting of the bacteria was 5×106 CFU/gr on average, and the average rate of being polluted by fungi was 2×104 CFU/gr (820-36300) showing the high microbial contamination in this product. No significant difference was found at the level of different brands.
Conclusion: The results showed that 26.6% of the samples were contaminated with S. aureus, 61.3% with total microbial and 65% with fungal infection.
Keywords: Meat Products, Staphylococcus, Fungi, Food Safety
Nourollah Ramroodi , Mohammad Taghi Kardi , Majid Bouzari , Marzieh Rezaei , Majid Komijani , Mahsa Yazdi,
Volume 10, Issue 3 (May-Jun 2016 2016)
Abstract
ABSTRACT
Background and Objective: Herpes simplex encephalitis is a life-threatening consequence of the central nervous system (CNS) infection with Herpes simplex virus (HSV). Although it is a rare disease, mortality rates reach 70% in the absence of therapy and only a minority of individuals can return to normal function. The aim of this study was to determine possible correlation between HSV infection and the incidence of encephalitis in patients with neurological signs.
Methods: Overall, 152 CSF samples were tested from patients with neurological signs referred to Mahdieh Clinical Laboratory in Isfahan from 2010 to 2013. After cerebrospinal fluid (CSF) collection, DNA was extracted and real-time polymerase chain reaction (PCR) was performed for HSV detection.
Results: Of 152 patients tested, 50 were diagnosed with encephalitis. HSV DNA was present in the CSF of 13 patients with encephalitis. HSV was significantly higher (p< 0.05) in patients with encephalitis, which shows the significance of infection as an etiological factor of this disease. About 60% of the encephalitis cases were in age range of 1-24 months.
Conclusion: According to the findings of the present study, Cesarean section is recommended for HSV-positive mothers. A routine real-time PCR test is suggested for HSV detection in patients with encephalitis to avoid unnecessary antiviral treatments.
Elaheh Rezaei , Pejvak Khaki , Soheila Moradi Bidhendi , Mojtaba Noofeli ,
Volume 13, Issue 1 (Jan-Feb 2019)
Abstract
ABSTRACT
Background and Objectives: Leptospirosis is a widespread zoonotic disease that is transmitted directly or indirectly from animals to humans. Humans mainly acquire pathogenic leptospires through mucosal or percutaneous exposure to environment contaminated with urine from an infected animal. We aimed to identify pathogenic leptospiral serovars by detection of the ompL37 gene using polymerase chain reaction (PCR).
Methods: Sixteen pathogenic leptospiral serovars and a saprophytic serovar, L. biflexa were cultured in modified semisolid Ellinghausen-McCullough-Johnson-Harris medium containing 5% rabbit serum. Genomic DNA extraction was done using the phenol-chlorophorm method. The ompL37 gene was amplified using specific primers. PCR products were analyzed by agarose gel electrophoresis.
Results: The ompL37 gene was amplified only in the pathogenic leptospiral serovars. We detected no amplified fragment for the saprophytic serovar.
Conclusion: Leptospirosis may be confused with other infectious diseases, and therefore, its early and accurate diagnosis is crucial. We showed that molecular detection of pathogenic leptospires based on the ompL37 gene could be used for laboratory diagnosis of leptospirosis.
Keywords: Leptospirosis, PCR, ompl37 Gene, Pathogenic Leptospires.
Farzaneh Alirezaei , Abbass Ghanbari-Niaki , Hamidreza Joshaghani , Mehran Naghizadeh Ghomi ,
Volume 13, Issue 3 (May-Jun 2019)
Abstract
ABSTRACT
Background and Objectives: Apolipoprotein M (APOM) is a novel high-density lipoprotein (HDL)-associated protein involved in the production of pre-beta HDL and cholesterol efflux to HDL. The present study examined effect of 12 weeks of aerobic interval training on HDL-associated APOM levels.
Methods: Study population included 20 healthy men aged 20 to 24 years. The subjects were randomly and equally divided into a training group and a control group. Each training session included 10 minutes of warm-up, 35 minutes of aerobic training (5 combined cycles each including four minutes of running at intensity of 85-95% and an active resting period of treadmill running at 65-75% of maximum heart rate for 3 minutes) and 10 minutes of cool-down. Blood samples (10 mL) were taken every four weeks. Two-way ANOVA and Bonferroni's post hoc test were used to compare the groups. A P-value of less than 0.05 was considered statistically significant.
Results: At the end of the 12th week, HDL-associated APOM levels increased in the training group and decreased in the control group. However, these changes were not statistically significant (P>0.05).
Conclusion: This study demonstrated that the 12-week aerobic interval training does not significantly affect HDL-associated APOM levels. However, it is recommended to monitor subjects’ diet throughout the study period to reach a more comprehensive conclusion.
Keywords: Aerobic interval training, Apolipoprotein M, Young men.
Maryam Karimi, Mahtab Moazzami, Najmeh Rezaeian,
Volume 15, Issue 1 (Jan-Feb 2021)
Abstract
Background and objectives: Multiple sclerosis (MS) is a common debilitating neurodegenerative disease caused by inflammatory demyelinating processes in the central nervous system. The present study aimed to evaluate the effects of core stability training on serum levels of progranulin and tumor necrosis factor alpha (TNF-α) in women with MS.
Methods: The study population consisted of 24 women with MS (aged 25 to 40 years) in Bojnourd (Iran) with expanded disability status scale score of 2-5. Patients were randomly divided into two groups of core stability training (n=12) and control (n=12). The training group performed 30-40 minutes of core stability training, three sessions a week for eight weeks. Blood sampling was done 24 hours before the first session and 48 hours after the last training session. Serum levels of progranulin and TNF-α were measured using commercial ELISA kits. Analysis of covariance was used to assess data at a significance level of 0.05 .
Results: The eight-week core stability training was associated with a significant increase in serum level of progranulin (P=0.037) and a significant decrease in the level of TNF-α (P=0.000).
Conclusion: The findings indicate that the eight-week core stability training could significantly change serum levels of progranulin and TNF-α and improve the condition of women with MS. Therefore, this type of training could be applied as a complementary therapy for MS patients.
Mehrdad Rezaeian, Saeid Khanzadi, Mohammad Hashemi, Mohammad Azizzadeh,
Volume 15, Issue 3 (May-Jun 2021)
Abstract
Background and objectives: Chitosan is a preservative that is commonly used in food packaging due to forming a film with antimicrobial activity. Many antimicrobial agents have been used to control the growth of different bacteria, fungi and yeasts in food products using chitosan coating. The present research was conducted to examine inhibitory effects of a coating incorporated with the essential oils of Zataria multiflora (ZEO) and Bunium persicum (BEO) on the growth of Pseudomonas artificially inoculated onto salmon fillets over a period of 12 days at 4 °C.
Methods: The antibacterial activity of BEO against P. aeruginosa was evaluated using the microdilution method via determining minimum inhibitory concentration and minimum bactericidal concentration. For the food model investigation, three P. aeruginosa strains were inoculated onto trout fillets as culture cocktail to assess their survival over 12 days of storage.
Results: The results indicated that ZEO and BEO had stronger inhibitory effect on P. aeruginosa in trout fillets when applied along with gel type nano-emulsion of chitosan solution. The separate use of each of these substances also significantly inhibited the growth of these pathogenic bacteria compared with the control. In addition, the use of chitosan coating without any antimicrobial agent affected the growth of P. aeruginosa.
Conclusion: The gel type nano-emulsion of chitosan coating containing ZEO and BEO can be applied on foodstuff, particularly fish and its products, as an antimicrobial agent.
Nahid Valipoor, Somayeh Namroodi, Shohreh Taziki, Hassan Rezaei,
Volume 16, Issue 4 (Jul-Aug 2022)
Abstract
Background and objectives: Lead (Pb) is among the most toxic pollutants that affect health of both humans and animals. Finding a way to prevent Pb accumulation in animals’ bodies seems necessary. Bacterial cellulose nanofiber (BCNF) can remove heavy metals from aqueous solutions. This study investigates effects of oral consumption of BCNF, as a chelator, on Pb concentration in the kidney and liver tissues of rats.
Methods: Sixteen Wistar rats (aged 6-8 weeks) were divided into four groups: 1. control, 2. fed with Pb, 3. fed with Pb (50 μg/g) and BCNF (16 μg/g) simultaneously, and 4. fed with Pb and BCNF with 4 hours interval. The rats were euthanized, and the kidney and liver tissues were separated. After acidic digestion of the tissue samples, Pb concentration was measured by atomic absorption spectrometry.
Results: The mean concentration of Pb in the kidney and liver tissues of rats fed with Pb and BCNF were significantly lower than that of rats fed only with Pb. In addition, the mean Pb concentration in rats of group 3 was lower than that of group 4.
Conclusion: The results of this study showed the favorable effects of BCNF on prevention of Pb accumulation in the kidney and liver tissues of rats. Moreover, removal of Pb may be related to binding of BCNF with Pb in the gut or blood. More studies are necessary to determine the exact mechanisms through which BCNF can reduce Pb accumulation.
