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Search Results: 1 - 10 of 2201 matches for " Maryam Farzad "
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Preliminary evaluation of resistance genes in rice against bacterial leaf blight in Guilan Province—Iran  [PDF]
Maryam Khoshkdaman, Ali Akbar Ebadi, Farzad Majidi-Shilsar, Somaye Dariush
Agricultural Sciences (AS) , 2014, DOI: 10.4236/as.2014.52012
Abstract:

The reactions of rice bacterial leaf blight races were identified in Guilan province—Iran on 12 near-isogenic lines and 14 pyramiding lines from International Network for Genetic Evaluation of rice (INGER) and 8 local and improved Iranian varieties were evaluated under natural photoperiod condition in the field. Inoculation was done at panicle initiation by clipping the sterilized scissors in the bacterial suspension to booting stage. Scoring of inoculated plants was made 21 days after inoculation. Infection levels of pyramiding lines containing two to five resistance genes, expect, IRBB53 and IRBB61 with respectively resistance gene combination, Xa5 + Xa13 and Xa4 + Xa5 + Xa7, were not so clear. Among near-isogenic lines IRBB1, IRBB2, IRBB4 and IRBB10 carrying resistance gene Xa1, Xa2, Xa4 and Xa10 were susceptible; IRBB8, IRBB11, IRBB3, IRBB5 and IRBB13 were moderately susceptible; (having resistance gene Xa8, Xa11, Xa3, Xa5 and Xa13) IRBB14, IRBB21 and IRBB7 with respectively resistance gene Xa14, Xa21 and Xa7 were moderately resistance to bacterial blight. Furthermore, most of the time gene combinations support the strategy of pyramiding appropriate resistance gene. Local varieties were more susceptible than improved varieties to leaf blight disease. Among local varieties, Tarom was the most susceptible. And also, there were no significant differences among improved varieties and all of them were moderately resistance.

Investigating Agricultural Productivity Growth and Convergence in Iran and Eastern African Countries
Maryam Shokoohi,Mohammad Kavoosi Kalashami,Farzad Serajzadeh
International Journal of Agricultural Management and Development , 2011,
Abstract: The issue of convergence or divergence of productivity hasimportant policy for regional poverty reduction and increasingstandards of living. If productivity converges to a common levelwithout intervention, there is little need for explicit policies inlagging regions to promote catch up. On the other hand,productivity has divergence trend, then explicit policies wouldbe needed to prevent further lagging of TFP and standard ofliving. Therefore, with regard to importance subject, this paperin finding out whether Iran and Eastern African countries inagriculture have managed to narrow their productivity gap? Theresults show that the range changes of average TFP growth liesbetween -4.9 percent in Rwanda countries and 1.1 percent inIran and Somalia. The results of convergence test indicate that,from among 9 countries under consideration only five countries,be converging to the mean. Therefore, these countries managedto make better use of new available technologies, thus reachingfar greater productivity levels than others. On the opposite, convergence can not be accepted for the rest countries.
Guided bone regeneration: A literature review
Maryam Farzad DDS,Mohammad Mohammadi DDS, MSc
Journal of Oral Health and Oral Epidemiology , 2012,
Abstract: Guided bone regeneration (GBR) is a reconstructive procedure of alveolar ridge using membranes. This procedure isindicated when there is no sufficient bone for implantation, or in the case of optimal implant installation for esthetic orfunctional needs. GBR can be performed before implant placement, when there is not enough bone for initial stability ofimplants and less predictable outcomes (staged approach), or performed simultaneously with implantation (combinedapproach). GBR techniques have been used for vertical and horizontal ridge augmentations with acceptable results. Thisliterature review discusses the background, principles of GBR, the materials used in GBR (types of membranes andbone grafts), success criteria and long term results of GBR
"Predictability of body mass index for diabetes: Affected by the presence of metabolic syndrome?"
Farzad Hadaegh, Mohammadreza Bozorgmanesh, Maryam Safarkhani, Davood Khalili, Fereidoun Azizi
BMC Public Health , 2011, DOI: 10.1186/1471-2458-11-383
Abstract: participants of the ongoing Tehran lipid and glucose study are followed on a triennial basis. Among non-diabetic participants aged≥ 20 years at baseline (8,121) those with at least one follow-up examination (5,250) were included for the current study. Multivariate logistic regression models were used to estimate sex-specific adjusted odd ratios (ORs) and 95% confidence intervals (CIs) of baseline BMI-MetS categories (normal weight without MetS as reference group) for incident diabetes among 2186 men and 3064 women, aged ≥ 20 years, free of diabetes at baseline.During follow up (median 6.5 years); there were 369 incident diabetes (147 in men). In women without MetS, the multivariate adjusted ORs (95% CIs) for overweight (BMI 25-30 kg/m2) and obese (BMI≥30) participants were 2.3 (1.2-4.3) and 2.2 (1.0-4.7), respectively. The corresponding ORs for men without MetS were 1.6 (0.9-2.9) and 3.6 (1.5-8.4) respectively. As compared to the normal-weight/without MetS, normal-weight women and men with MetS, had a multivariate-adjusted ORs for incident diabetes of 8.8 (3.7-21.2) and 3.1 (1.3-7.0), respectively. The corresponding ORs for overweight and obese women with MetS reached to 7.7 (4.0-14.9) and 12.6 (6.9-23.2) and for men reached to 3.4(2.0-5.8) and 5.7(3.9-9.9), respectively.This study highlights the importance of screening for MetS in normal weight individuals. Obesity increases diabetes risk in the absence of MetS, underscores the need for more stringent criteria to define healthy metabolic state among obese individuals. Weight reduction measures, thus, should be encouraged in conjunction with achieving metabolic targets not addressed by current definition of MetS, both in every day encounter and public health setting.Diabetes is "a common, growing, serious, costly, and potentially preventable public health problem" [1]. Metabolic syndrome (MetS) and body mass index (BMI) are established independent risk factors in the development of diabetes [2]. Obesity consists of
Association of liver enzymes with incident type 2 diabetes: A nested case control study in an Iranian population
Maryam Tohidi, Hadi Harati, Farzad Hadaegh, Yadolladh Mehrabi, Fereidoun Azizi
BMC Endocrine Disorders , 2008, DOI: 10.1186/1472-6823-8-5
Abstract: In a nested case-control study, AST, ALT, GGT as well as classic diabetes risk factors, insulin and C-reactive protein (CRP) were measured in 133 non-diabetic subjects at baseline of which 68 were cases and 65 were controls. Incident diabetes was defined by the WHO 1999 criteria. Conditional logistic regression was used to calculate the odds ratio (OR) of incident diabetes associated with different hepatic markers. We used factor analysis for clustering of classic diabetes risk factors.In Univariate analysis both ALT and GGT were associated with diabetes with ORs of 3.07(1.21–7.79) and 2.91(1.29–6.53) respectively. After adjustment for CRP and insulin, ALT and GGT were still predictive of incident diabetes. When the model was further adjusted for anthropometric, blood pressure and metabolic factors, only ALT was independently associated with diabetes [OR = 3.18 (1.02–9.86)]. No difference was found between the area under the receiver operating characteristic curves of the models with and without ALT (0.820 and 0.802 respectively, P = 0.4)ALT is associated with incident type 2 diabetes independent of classic risk factors. However, its addition to the classic risk factors does not improve the prediction of diabetes.In Recent years Non-Alcoholic Fatty Liver Disease (NAFLD) has drawn much attention to itself as a pathogenic factor of insulin resistance and type 2 diabetes mellitus [1]. This idea is supported by several cross-sectional studies showing an association between NAFLD and prevalence of type 2 diabetes as well as features of the metabolic syndrome, including dyslipidemia and abdominal obesity, which highlight insulin resistance as an important feature of NAFLD [2-4].Since circulating liver enzymes including aspartate aminotransferase (AST), alanine aminotransferase (ALT), and Gamma glutamyltransferase (GGT) are commonly elevated in asymptomatic patients with NAFLD [5,6], the prospective association between the hepatic markers and type 2 diabetes is expected, a
Effect of Antituberculosis Regimen Containing Ethambutol on Serum magnesium Level in Pulmonary Tuberculosis Patients
Mohammad Abbasi Nazari,Farzad Kobarfard,Payam Tabarsi,Maryam Azimi
Iranian Journal of Pharmaceutical Research , 2009,
Abstract: Magnesium is an essential metal that has important roles in physiological function of the body organs. Ethambutol is an oral antitubercular agent with chelating effects owing to its chemical structure. The aim of present study is to determine whether ethambutol usage can alter serum magnesium concentration in patients with pulmonary tuberculosis. Sixty patients with diagnosis of pulmonary tuberculosis were enrolled in the study. Blood samples were obtained before treatment from patients. Ten days after starting anti tuberculosis therapy, second blood samples were obtained. The amounts of serum magnesium were determined in all samples by spectrophotometric method. Statistical analysis showed that serum magnesium concentrations at baseline (0.61±0.08 mmol/l) and at day 10 (0.62±0.11 mmol/l) were not different. It is possible that ethambotol does not affect magnesium concentration in tuberculosis patients, however further studies about the other cationic trace elements are recommended.
Does a Long Reference List Guarantee More Citations? Analysis of Malaysian Highly Cited and Review Papers
Nader Ale Ebrahim, H. Ebrahimian, Maryam Mousavi, Farzad Tahriri
The International Journal of Management Science and Business , 2015, DOI: 10.6084/m9.figshare.1321205
Abstract: Earlier publications have shown that the number of references as well as the number of received citations are field-dependent. Consequently, a long reference list may lead to more citations. The purpose of this article is to study the concrete relationship between number of references and citation counts. This article tries to find an answer for the concrete case of Malaysian highly cited papers and Malaysian review papers. Malaysian paper is a paper with at least one Malaysian affiliation. A total of 2466 papers consisting of two sets, namely 1966 review papers and 500 highly-cited articles, are studied. The statistical analysis shows that an increase in the number of references leads to a slight increase in the number of citations. Yet, this increase is not statistically significant. Therefore, a researcher should not try to increase the number of received citations by artificially increasing the number of references.
Lipid measures for prediction of incident cardiovascular disease in diabetic and non-diabetic adults: results of the 8.6 years follow-up of a population based cohort study
Maryam Tohidi, Masumeh Hatami, Farzad Hadaegh, Maryam Safarkhani, Hadi Harati, Fereidoun Azizi
Lipids in Health and Disease , 2010, DOI: 10.1186/1476-511x-9-6
Abstract: The study population consisted of 1021 diabetic (men = 413, women = 608) and 5310 non-diabetic (men = 2317, women = 2993) subjects, aged ≥ 30 years, free of CVD at baseline. The adjusted hazard ratios (HRs) for CVD were calculated for a 1 standard deviation (SD) change in total cholesterol (TC), log-transformed triglyceride (TG), high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C), non-HDL-C, TC/HDL-C and log-transformed TG/HDL-C using Cox proportional regression analysis. Incident CVD was ascertained over a median of 8.6 years of follow-up.A total of 189 (men = 91, women = 98) and 263(men = 169, women = 94) CVD events occurred, in diabetic and non-diabetic population, respectively. The risk factor adjusted HRs to predict CVD, except for HDL-C, TG and TG/HDL-C, were significant for all lipid measures in diabetic males and were 1.39, 1.45, 1.36 and 1.16 for TC, LDL-C, non- HDL-C and TC/HDL-C respectively. In diabetic women, using multivariate analysis, only TC/HDL-C had significant risk [adjusted HR1.31(1.10-1.57)].Among non-diabetic men, all lipid measures, except for TG, were independent predictors for CVD however; a 1 SD increase in HDL-C significantly decreased the risk of CVD [adjusted HR 0.83(0.70-0.97)].In non-diabetic women, TC, LDL-C, non-HDL-C and TG were independent predictors.There was no difference in the discriminatory power of different lipid measures to predict incident CVD in the risk factor adjusted models, in either sex of diabetic and non-diabetic population.Our data according to important test performance characteristics provided evidence based support for WHO recommendation that along with other CVD risk factors serum TC vs. LDL-C, non-HDL-C and TC/HDL-C is a reasonable lipid measure to predict incident CVD among diabetic men. Importantly, HDL-C did not have a protective effect for incident CVD among diabetic population; given that the HDL-C had a protective effect only among non- diabetic men.Risk of cardio
Study of the Effect of Silymarin on Viability of Breast Cancer Cell Lines  [PDF]
Saieh Hajighasemlou, Mohammadmorad Farajollahi, Mahmoud Alebouyeh, Hossein Rastegar, Mojgan Taghizadeh Manzari, Milad Mirmoghtadaei, Behjat Moayedi, Maryam Ahmadzadeh, Mansure Kazemi, Farzad Parvizpour, Safoora Gharibzadeh
Advances in Breast Cancer Research (ABCR) , 2014, DOI: 10.4236/abcr.2014.33015
Abstract:

Background: Breast cancer is the most prevalent cancer and results in 14% of cancer-related deaths among women worldwide. The aim of this study is to investigate the anticancer effects of Silymarin on two breast cancer cell lines (BT-474, SK-BR-3). Methods and Material: Two breast cancer cell lines—SK-BR-3 and BT-474—were incubated for 24 hours in standard conditions before adding 100, 200, 400, 800, 1600 μM Silymarin to each well. Alamar blue was then added to the wells after 24, 48 and 72 hours of incubation and cell viability was determined using fluorescence reader to detect the optical density. Results were analyzed using generalized estimating equations (GEE) method in STATA 12.0. Results: we demonstrated the Silybum marianum inhibition of two-cell lines SK-BR-3 and BT-474 growth at different concentrations after 24, 48 and 72 hours. Silymarin increased cell death in both cell lines. Conclusion: Silymarin can be combined with other anti-neoplastic agents to obtain better results.

Lipid ratios and appropriate cut off values for prediction of diabetes: a cohort of Iranian men and women
Farzad Hadaegh, Masumeh Hatami, Maryam Tohidi, Parvin Sarbakhsh, Navid Saadat, Feridoun Azizi
Lipids in Health and Disease , 2010, DOI: 10.1186/1476-511x-9-85
Abstract: The study population consisted of 5201 non diabetic (men = 2173, women = 3028) subjects, aged ≥20 years. The risk factor adjusted odds ratios (ORs) for diabetes were calculated for every 1 standard deviation (SD) change in TC, log-transformed TG, HDL-C, non-HDL-C, TC/HDL-C and log-transformed TG/HDL-C using multivariate logistic regression analysis. Receiver operator characteristic (ROC) curve analysis was used to define the points of the maximum sum of sensitivity and specificity (MAXss) of each lipid measure as a predictor of diabetes.We found 366 (146 men and 220 women) new diabetes cases during follow-up. The risk-factor-adjusted ORs for a 1 SD increase in TG, TC/HDL-C and TG/HDL-C were 1.23, 1.27 and 1.25 in men; the corresponding risks in females were 1.36, 1.14, 1.39 respectively (all p < 0.05, except TC/HDL-C in females which was marginally significant, p = 0.07). A 1 SD increase of HDL-C only in women decreased the risk of diabetes by 25% [0.75(0.64-0.89)]. In both genders, there was no difference in the discriminatory power of different lipid measures to predict incident diabetes in the risk factor adjusted models (ROC ≈ 82%). TG cutoff values of 1.98 and 1.66 mmol/l; TG/HDL-C cutoff values of 4.7 and 3.7, in men and women, respectively, TC/HDL-C cutoff value of 5.3 in both genders and HDL-C cutoff value of 1.18 mmol/l in women yielded the MAXss for defining the incidence of diabetes.TC/HDL-C and TG/HDL-C showed similar performance for diabetes prediction in men population however; among women TG/HDL-C highlighted higher risk than did TC/HDL-C, although there was no difference in discriminatory power. Importantly, HDL-C had a protective effect for incident diabetes only among women.The prevalence and incidence of type 2 diabetes (hereafter diabetes) are high in the Middle Eastern countries [1-3], which are estimated, will have the largest increases in the prevalence of diabetes by 2030 [4].The prevalence of Type 2 diabetes is reported to be over 14% in Teh
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