Showing 7 results for Shahbazi
Emam, S J., Asgari, M., Hosseini, S A., Shahbazian, H., Veisi, E., Vali, M., Latifi, S M., Malihi, R.,
Volume 6, Issue 2 (Autumn- Winter [PERSIAN] 2012)
Abstract
Abstract
Background and objectives: Diabetes is a chronic and progressive disease resulting in disability and premature death. The Etiology of diabetes mellitus is complex, but factors such as genetic, immunological and environmental are involved .The aim of this study was to investigate the association between diabetes and blood type.
Material and Methods: In this cross - sectional study blood group of 500 patients with diabetes type 2 was determined and compared with the distribution of blood groups in 11,461 healthy people in Ahwaz. Statistical analysis was performed by independent T test, using SPSS Software (version 17)
Results: the Patients’ age is between 35 and 80 years. Their Blood groups are A (106 20.3 %) B (144 27.5%) AB (97 18.5%) and O (176 32.7%). One hundred seventy-nine (34.2%) cases are Rh+ and the rest (344 65.8 %) Rh- .
Conclusion: Regarding to the distribution of blood group AB and Rh- ,which respectively are 7.3% and 8.4%, the chance of developing diabetes in theses people is higher than that in other people (P<0.05). Hence, they should follow a healthy lifestyle from early years of life to reduce the risk of diabetes.
Key words: Diabetes type 2, blood group, risk factors
Mohammad Taghvaie, N, Jalali, Mt, Ghasemi Falavarjani, M, Shahbazian, Bb, Saki, A,
Volume 9, Issue 2 (may,jun 2015[PERSIAN] 2015)
Abstract
Background and Objective: According to recent changes in diagnostic criteria for diabetes, the harmonization of results obtained from various methods and systems by considering their accuracy and precision is essential. This study aimed to evaluate the accuracy, precision and consensus of some routine laboratory glucose kits in comparison with Hexokinase reference method.
Material and Methods: The participants were 38 diabetic patients with fasting blood sugar (FBS) ≥126 mg/dl, nine prediabetic patients with FBS of 100-125 mg/dl, 15 non-diabetic people with FBS of 60-100 mg/dl and 9 hypoglycemic patients with FBS of ≤60 mg/dl. Their FBS were measured by four routine laboratory glucose kits: Glucose oxidase on BT3000 analyzer with an open system and Hexokinase reference method on a close system (COBAS INTEGRA®400plus analyzer, Roche kit). Accuracy and precision were determined and compared with reference method.
Results: Glucose oxidase methods showed a good agreement with the reference method, in Correlation Coefficient>0.99. based on regression analysis, the slope of 1.114 for Pars Azmoon, 1.105 for Bionik, 1.121 for Elitech and 1.087 for Human were reported (P<0.05). Error of the mean for ParsAzmoon was 12.79, for Bionik 10.86, for Elitech 12.58 and for Human were 8.46. Coefficient of Variation showed more imprecision for Bionik and Human kits.
Conclusion: given the same almost standard errors, standard devisions and regression analysis, the precision in four methods is the same but in comparison with Hexokinase, reference method has not the accuracy.
Keywords: Blood Glucose, Glucose Oxidase, Hexokinase, Methods, Consensus
Mohammad Taha Jalali, Hajie Bibi Shahbazian , Mohammad Reza Afsharmanesh , Rohollah Mousavi Dehmordi , Azadeh Saki ,
Volume 10, Issue 2 (Mar,Apr2016 2016)
Abstract
ABSTRACT
Background and Objective: The current challenge of diabetes mellitus is to prevent its complications. These complications are directly associated with hyperglycemia in diabetics. The HbA1c measurement is essential for long-term glycemic control. Synchronization of HbA1c measurement is important in order to avoid discrepancies between results reported by laboratories. This study aimed to evaluate the accuracy, precision and agreement of five HbA1c measurement methods with HPLC reference method.
Methods: HbA1c levels of 55 samples were measured using six methods of microcapillary electrophoresis (Sepia), enzymatic method (Pishtaz Teb), immunoturbidometry (Pars Azmoon), boronate affinity (Nycocard), immunofluorescence (ichroma) and Tosoh G8 HPLC.
Results: The five tested methods showed a good agreement with the HPLC method with correlation coefficient of less than 95%. Regression testing of HPLC method and other methods showed slope of 0.99 (P<0.05) for Sebia, 1.02 (P<0.05) for Pishtaz Teb, 0.79 (P<0.05) for Pars Azmoon, 0.82 (P<0.05) for Nycocard and 0.89 (P<0.05) for ichroma. Average inaccuracy for the Sebia, Pishtaz Teb, Pars Azmoon, Nycocard and ichroma in comparison with the HPLC reference method were -0.09, -0.004, -0.75, -0.79 and -0.78, respectively.
Conclusion: The Sebia microcapillary method and Pishtaz teb enzymatic method have appropriate accuracy and precision. Therefore, these methods can be used as alternatives to the HPLC method for HbA1c measurement. Other methods such as Pars Azmoon, Nycocard and ichroma have significant shortcomings in terms of accuracy.
Hossein Hashemzadeh Farhang , Parisa Shahbazi ,
Volume 10, Issue 6 (Nov-Dec-2016 2016)
Abstract
ABSTRACT
Background and Objectives: Cryptosporidium parvum is a coccidian protozoan that causes diarrhea in immunocompromised humans and newborn animals. The severity of the disease depends on the immunological status of the affected. Cryptosporiosis can have lethal effects on immunocompromised individuals such as AIDS patients. About 10% of AIDS patients die following an infection with C. parvum. Since there is no efficient treatment for cryptosporidiosis, there is an urgent need to search for more effective and safer alternatives. IgY is an avian immunoglobulin found in egg yolks. Due to its several advantages, IgY technology has been successfully used in biomedical research on humans and animals in the recent years. In this study, the specific chicken egg yolk antibody (IgY) against C. parvum whole oocyst antigens was produced and examined.
Methods: The effect of specific chicken egg yolk antibody (IgY) against whole oocyst antigens was examined. IgY sample was obtained from eggs of chickens immunized with C. parvum whole oocyst antigens and analyzed with lysate of C. parvum oocysts by dot blot assay.
Results: The IgY was produced with concentration of 9.7 mg/ml. This antibody was able to recognize the whole oocyst antigens until the dilution of 1:1000, but the best dilution for other immunoassays was 1:500.
Conclusion: Since chicken egg yolk is a cheap and convenient source for mass production of specific antibodies, the use of IgY against whole oocyst antigens could be considered a suitable candidate for passive immunization against cryptosporidiosis in humans and animals.
Keywords: Cryptosporidium parvum, IgY, Oocysts.
Tabassom Naseri Poor, Saeed Nasrollahnejad, Samira Shahbazi, Kamran Rahnama,
Volume 11, Issue 1 (Jan-Feb- 2017 2017)
Abstract
ABSTRACT
Background and Objectives: Cellulose is a major component of plant biomass, which can be converted into biofuels and valuable chemicals. The key step in utilization of this organic material is its hydrolysis into soluble sugars. This study evaluated cellulase production by Trichoderma harzianum under different pH values, temperatures and incubation periods with the aim to increase enzyme production and decrease its costs.
Methods: The amount of protein production and the hydrolytic activity of cellulase enzymes including exoglucanase, endoglucanase and β-glucosidase produced by T. harzianum were evaluated using various substrates such as avicel, carboxymethyl cellulose, cellobiose, Whatman grade 1 filter paper under different pH values (4, 4.8, 5.5 and 6.5), temperatures (25, 28 and 34 °C) and incubation times (48, 72, 96 and 120 h).
Results: The optimum condition for cellulase production by T. harzianum is 120 hours of incubation at 25 °C and pH of 6.5.
Conclusion: T. harzianum can be used for the production of all three classes of cellulase. This fungus is suitable for the efficient production of cellulolytic enzymes and reducing the cost of consumables.
Keywords: Cellulose, Trichoderma harzianum, Hydrolytic enzymes, Optimization.
Mahnaz Shahbazi, Naser Behpoor, Mohammad Faramarzi, Ebrahim Banitalebi,
Volume 15, Issue 5 (Sep-Oct 2021)
Abstract
Background and objectives: Bone-related osteokines play an important role in the response of bone metabolism to physical activity. The purpose of this study was to investigate effects of different intensities of resistance training on serum levels of some osteokines associated with the Wnt signaling pathway and receptor activator of nuclear factor kappa-Β ligand (RANKL) pathway in old male Wistar rats.
Methods: Twenty-four old (23 months) male Wistar rats (mean weight: 437.93±33 g) were randomly divided into three groups of moderate-intensity resistance training (n=8), high-intensity resistance training (n=8) and control (n=8). Moderate- and high-intensity resistance trainings were performed at 60% and 80% maximal voluntary carrying capacity, respectively. The level of wclerostin, osteoprotegerin (OPG) and RANKL was evaluated by enzyme linked immunosorbent assay. Data were analyzed using one-way analysis of variance and at significance level of ≤0.05.
Results: The results showed that sclerostin (p=0.014), OPG (p=0.049) and RANKL (P=0.034) differed significantly between the study groups. The Tukey post-hoc comparison showed that sclerostin decreased significantly in the high-intensity resistance training group compared to moderate-intensity resistance training group (P=0.048). In addition, OPG decreased significantly in the moderate-intensity resistance training group compared to the control group (P=0.033). Moreover, RANKL decreased significantly in the high-intensity resistance training group compared to the control (P=0.048).
Conclusion: The results showed that resistance training with appropriate repetition and intensity can have positive effects on bone formation signaling pathways.
Ali Ehsan Shahbazi, Nastaran Barati, Eissa Soleymani, Pegah Khandan Del, Abolfazl Khandan Del, Nemat Azizi , Behjat Ranjouri , Mehran Bakhtiari , Seyedmousa Motavallihaghi ,
Volume 17, Issue 6 (Nov-Dec 2023)
Abstract
Background: COVID-19 is a respiratory disease pandemic and a major global health problem that can cause acute respiratory distress syndrome (ARDS). Previous studies have shown an inverse link between toxoplasmosis and COVID-19. This study aimed to evaluate the association between COVID-19 and toxoplasmosis infection.
Methods: In this cross-sectional descriptive study, samples were taken from 360 patients, 50% of whom were men and 50% were women. Of the patients, 180 were determined to be COVID-19-positive by the ELISA kit, and 180 were in the control group. Some demographic characteristics, such as sex, age range, and occupation, were also recorded.
Results: This study was conducted on 180 COVID-19-positive patients, of whom 26.7% were in the 16-30-year age group, 25.1% were self-employed, and 31.7% had anti-Toxoplasma gondii antibodies. Among the 180 control patients, 21.1% had antibodies for T. gondii. Of the 57 patients who were co-infected with both COVID-19 and toxoplasmosis, men had higher infection rates (63.2%) than women (36.8%). There was a significant relationship between co-infections with COVID-19 and toxoplasmosis with occupation, but not with age.
Conclusion: The study found that people with toxoplasmosis infection have a 1.73 times higher risk of contracting COVID-19. The findings suggest that infectious agents could be a predisposing factor, possibly due to changes in cytokine levels.
