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11.
Nemati E Ghanbarpour F Taheri S Einollahi B 《Pakistan journal of biological sciences: PJBS》2008,11(6):910-914
The aim of this study is to document the prevalence of HTN and characterize risk factors associated with HTN in Iranian hemodialysis patients. Three hundred and thirty seven HD patients from 5 university based HD centers around Iran were enrolled in the study. Urea reduction ratio was calculated using formula: 100 * (1-(urea before HD/urea after HD)). Pearson Chi-square test, independent sample t-test and one way ANOVA were used for evaluations, where appropriate. Multivariate logistic regression model was used for defining independent risk factors. Two sided p < 0.05 were considered significant. Patients with diabetes mellitus and hypertension as causes of ESRD significantly were more likely to have hypertension before and after dialysis (p < 0.05). Patients with conventional thrice weekly dialysis (compared to twice), hemodialysis duration of more that 6 months, acetate type of dialysate, ESRD cause when diabetes mellitus and hypertension, were significantly associated with having pre-HD hypertension. We also found that hemodialysis center of the capital city had a significant better measures compared to other cities (p < 0.05). This study revealed a relatively acceptable prevalence of hypertension in our HD population. Nevertheless, because of higher prevalence of HTN in HD centers out of capital city, it seems necessary that we should urgently pay more attention in promotion of these centers toward achieving better outcome with implementing strict guidelines to follow. 相似文献
12.
Leonardo S. S. Oliveira Muhamad A. Saha Fahimeh Jami Rianza Asfa Maggie V. Maretha Jaliaman Sipayung Marthin Tarigan Alvaro Duran 《Forest Pathology》2023,53(5):e12825
Powdery mildews are biotrophic ascomycetes that do not typically kill their hosts, but instead interfere with normal plant growth. In Indonesia, white powdery spots were observed forming on the upper part of fully developed leaves of Eucalyptus pellita planted in sand beds of a clonal nursery. Thus, this study aimed to identify the causal agent of eucalypt powdery mildew in Indonesia as well as to develop control strategies to better manage the disease. Pathogen identification was based on morphology, molecular characterization of DNA sequencing the ITS region and pathogenicity test. In addition, considering that some powdery mildews are inhibited by free moisture on leaves, efficacy of foliar watering was tested for disease control. Phylogenetic analyses showed that isolates collected from infected eucalypt plants grouped together with other sequences of the Erysiphe elevata clade with bootstrap support of 99%; a similar result was also confirmed by morphological observations. Pathogenicity of powdery mildew on eucalypt plants was confirmed through artificial inoculation, thus fulfilling the Koch's postulates. For disease control, foliar watering reduced the incidence of powdery mildew on mother plants. The reduction of the disease incidence began to be more evident at 2 weeks after trial establishment, and in the fourth week, the incidence was below 10% in all three treatments, while the control was above 20%. Therefore, we concluded that E. elevata is the causal agent of powdery mildew in Indonesia and that one application of foliar watering per week was enough to minimize the disease impact in the nursery. 相似文献
13.
Genetic Resources and Crop Evolution - Citrus plants are one of the most important fruit plants which are consumed all over the world. The breeding of these valuable fruit plants is based on... 相似文献
14.
Alireza Motallebi-Azar Samaneh Kazemiani Fahimeh Yarmohamadi 《Russian Agricultural Sciences》2013,39(2):112-116
In order to evaluate of using microtubers for conservation of potato germplasm, the main effects of sucrose, mannitol and PEG on percentage of microtuber initiation and formation, size and fresh weight of microtuber were studied. PEG decreased production and weight of microtubers, whereas higher concentrations of sucrose promoted microtuber production, microtuber size as well as microtuber fresh weight. Increasing of sucrose concentrations were improved efficiently in vitro microtuber production without negative side effects. Addition of mannitol to all media was increased microtuberization than media containing PEG. So, alcoholic sugars such as mannitol increased microtuberization, but after 5 weeks, microtuberization in media supplied with sucrose was more than the mannitol. Such studies might help to reduce the cost of production of virus free potato seed from different cultivars. 相似文献
15.
Fahimeh Golparyan Ali Azizi Jalal Soltani 《European journal of plant pathology / European Foundation for Plant Pathology》2018,150(3):759-764
Sweet pepper (Capsicum annuum) is a popular crop worldwide and an asymptomatic host of the begomovirus (Geminiviridae) Tomato yellow leaf curl virus (TYLCV). A previous study showed that TYLCV could be transmitted by the seeds of tomato plants, but this phenomenon has not been confirmed in other plants. In 2015, four different cultivars of sweet pepper (‘Super Yellow,’ ‘Super Red,’ ‘Sunnyez’ and ‘Cupra’) known to be susceptible to TYLCV were agro-inoculated with a TYLCV infectious clone. Three months after inoculation, the leaves of the ‘Super Yellow’ cultivar showed 80% (8/10) susceptibility and the other three sweet pepper cultivars showed 30 to 50% susceptibilities. All of the ‘Super Yellow’ seed bunches (five seeds per bunch) from plants whose leaves were confirmed to be TYLCV-infected were also TYLCV-infected (8/8). The seeds of other cultivars showed 20 to 40% susceptibilities. Virus transmission rates were also verified with 10 bunches of seedlings for each cultivar (five seedlings per pool). Eight bunches of ‘Super Yellow’ seedlings (8/10) were confirmed to be TYLCV-infected and one to three bunches of each of the other cultivar seedlings were also infected. Viral replication in TYLCV-infected seeds and seedlings was confirmed via strand-specific amplification using virion-sense- and complementary-sense-specific primer sets. This is the first report of TYLCV seed transmission in sweet pepper plants and among non-tomato plants. Because sweet pepper is an asymptomatic host of TYLCV, seeds infected with TYLCV could act as a silent invader of tomatoes and other crops. 相似文献
16.
Delivery of chemotherapy drugs, such as cisplatin, with controlled manner is a significant area of research in cancer treatment. The main purpose of this study was to investigate the in-vitro release of cisplatin from pH sensitive and controlled release hydrogels based on cellulose nanofibers (CNFs) and poly(vinyl alcohol) (PVA). Various hydrogels with different amounts of CNFs were prepared. This novel drug delivery system was characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and scanning electron microscopy (SEM) analyses. By in-vitro experiments the influence of CNFs contents and pH of the release media on the release rate of the drug were investigated. According to the results, the hydrogel containing 1 wt% CNFs in the release media with the pH of 7.4, efficiently sustained the drug release and so can cause to the reduction of side effects of drug. By fitting the experimental data with various kinetic models it was concluded that the release mechanism is best fitted by Korsmeyer-Peppas kinetic model suggesting the diffusion controlled release mechanism. The prepared hydrogel system is suitable for delivery of cisplatin in the small intestine with a controlled manner. 相似文献
17.
Fahimeh Hajatmand Gholamali Amin Mohammad Fereidoonpoor 《Acta Agriculturae Scandinavica, Section B - Plant Soil Science》2013,63(4):357-363
Spiny bollworm, Earias insulana Boisduval. (Lep.: Noctuidae), causes huge losses to cotton crops each year. As a relatively hardy species of insect, E. insulana tolerates a wide range of environmental conditions and so is prevalent in many regions of the world. Effect of sex pheromone traps to control spiny bollworm by mass trapping method was studied. Investigation of monthly changes in captures in relation to temperature carried out during 2012 in the Darab region of the Fars Province of Iran. The experiment was carried out in randomised complete blocks design with four treatments and four replications. The treatments used application of the sex pheromone trap at the rates of 16, 20, 24 and 30 traps/ha. The captured male moths were collected and counted every three days. Analysis of the variance of results showed significant differences between time and trap number in the trapping values of E. insulana. Moth populations were observed in the second week of September. The highest and lowest captured insects per hectare were 30 and 16 traps/ha, respectively. The peak captured E. insulana adult males in the sampling period was on 18 November. These results enable forecasting of seasonal E. insulana population peaks, providing additional information vital for the development of a successful, integrated pest-management programme for spiny bollworm. 相似文献
18.
Hossein Sabahi Saba Siadat Jamian Fahimeh Ghashghaee 《Journal of plant nutrition》2016,39(14):2092-2099
It has been hypothesized that plant polyphenol plus lignin, cellulose, and hemicelluloses can immobilize/remineralize inorganic fertilizers, such as urea, better than polyphenol alone. To test this hypothesis, urea was coated with pomegranate (Punica granatum L.) fruit powder (containing polyphenol+lignin+cellulose) at rates of 0%, 30%, 70%, and 100% (w/w) of fertilizer urea. Fertilizer nitrogen was applied at 100 and 200 mg kg?1 soil in a clay loam soil. This natural coating material, particularly at the rate of 100% (w/w), improved the distribution of mineral nitrogen (N) and available phosphorus (P) in soil during both early and advanced growth stages of maize and significantly increased total crop N and P uptake at both rates of fertilizer nitrogen compared to urea alone. The results suggest that urea coated with the powder of pomegranate fruit could potentially be an N slow-release fertilizer for use in better synchronizing crop N demand with soil N supply. 相似文献
19.
Mahdi Banaee Fahimeh Fallahpour Vahid Soleimany Behzad Nematdoost Haghi 《Journal Of Applied Aquaculture》2013,25(2):92-109
ABSTRACTThis study was conducted to evaluate the effects of marshmallow extract (Althaea officinalis L.) administration on blood cells and biochemical parameters of carp liver. A total of 150 carps (Cyprinus carpio, initial body mass of 37.7 ± 4.4 g) were fed diets containing 0.0 (control diet), 2.5, 5, and 10 g marshmallow extract for 60 days. On days 30 and 60 of the experiment blood samples were collected and hematological parameters and liver enzyme activities—aspartate aminotransferase (AST), alanine amino transferase (ALT), lactate dehydrogenase (LDH), and alkaline phosphatase (ALP)—were measured. No significant difference was found (p > .05) in red blood cells (RBC); hemoglobin concentration (Hb); hematocrit (Htc); mean corpuscular volume (MCV); mean corpuscular hemoglobin concentration (MCH); or the percentage of neutrophils, basophils, and eosinophils in fish fed with different concentrations of marshmallow extract on days 30 and 60. However, the white blood cell (WBC) count was increased significantly in the fish fed for 60 days with feed supplemented with 5 g marshmallow extract (p < .05). The MCHC was increased signi?cantly in ?sh fed with diets supplemented with 2.5 g marshmallow extract for 60 days (p < .05). Administration of marshmallow extract (5 g) significantly increased (p < 0.05) lymphocytes on days 30 and 60. However, dietary intake of 10 g marshmallow extract had significantly decreased the monocyte percentage after 60 days. A significant increase was observed in AST, ALT, ALP, and LDH levels in livers of fish fed with extract 10 g, which may be attributed to cytotoxicity. However, marshmallow extract 2.5 and 5 g did not have adverse effects on liver enzymes. These results indicate that preclinical dietary supplementations of 2.5 and 5 g marshmallow extract per kg diet have no side effects on common carp. 相似文献
20.
Optimum spinning machine parameters selection among available alternatives with different significances is a difficult task in textile industry. To overcome disadvantages associated with statistical methods that are used in such kind of problems, multi-criteria decision making approaches (MCDM) were employed by researchers. TOPSIS, AHP-TOPSIS and ELECTRE are three popular techniques in spinning problems. VIKOR, the Serbian name; Vlse Kriterijumska Optimizacija I Kompromisno Resenje, means multi-criteria optimization and compromise solution is a novel approach that has priority over other MCDM methods in terms of precision in final ranking. In this study, selecting the appropriate doffing tube components and its adjustment for 30Ne rotor spun yarn that is intended to be used for weft-knitted fabric will be provided by this approach. Yarn samples were spun considering three variables namely, the distance between the nozzle and rotor, the extractive nozzle and the draw-off tube. Feasible alternatives were ranked on the basis of the yarn quality parameters by the VIKOR and the best alternative for increasing weft-knitting machine efficiency was introduced. According to the final ranking, the spinning condition in which the sample was spun using a spiral nozzle, a doffing tube without a torque stop and a closer setting had the highest performance. 相似文献