382 research outputs found

    Using Two Retrotransposon Based Marker Systems (IRAP and REMAP) for Molecular Characterization of Olive (Olea europaea L.) Cultivars

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    Olive (Olea europaea L.) is one of the most characteristic agricultural trees of the Mediterranean region and has a large number of cultivar diversity. Olive cultivar characterization is very important especially for the fruit productivity and olive oil quality. In the present study, 46 clones belonging to Turkey (eight cultivars, each having five clones) and Italy (two cultivars, each having three clones) were assessed for cultivar characterization via inter-retrotransposon amplified polymorphism (IRAP) and retrotransposon-microsatellite amplified polymorphism (REMAP) marker systems using 10 LTR and 10 ISSR primers. In total, 368 band profiles were obtained, 358 of which are polymorphic (97.28% polymorphism). The cultivars were segregated into three main groups, each group having several branches, where all the clones of each cultivar were belonging to the same main group. The only exception to that was the distribution of the clones of cultivar Yaglik, 'Yaglik 4' and 'Yaglik 5', into different main groups. IRAP and REMAP analysis showed a high level of genetic variability among the olive cultivars in this study and this marker systems would be useful tool for clonal selection programs

    Behavior contracts - a counteraction to exclusion in school

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    The ameliorative effects of 24-epibrassinolide on shoot organogenesis inhibition occurring under NaCl-stressed conditions in cultures of cotyledon and hypocotyl explants of tomato (Lycopersicon esculentum Mill.)

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    In this study, possible effects of 24-epibrassinolide (24-epiBL) pretreatment against NaCl stress were investigated using in vitro shoot organogenesis from cotyledon and hypocotyl explants in M-28 tomato hybrid cultivar. The cotyledon and hypocotyl explants of 10-day sterile seedlings were treated with 1 ?M and 2 ?M 24-epiBL solutions (prepared with 70% acetone) for 30 seconds and applied explants were cultured on MS medium supplemented with 2 mg/l 6-benzylaminopurine (BAP) + NaCl (0, 20, 40, 60, 80 and 100 mM). It was determined that the regeneration percentage as well as the shoot number/explant, the shoot length and the leaf number/shoot derived from both explants suffered NaCl stress after 30 days. 24-epiBL pretreatment against NaCl stress showed ameliorative effects and hypocotyl explants gave better results than cotyledon explants for these growth parameters. Different stages of shoot organogenesis from hypocotyl explants applied with 24-epiBL under salt stress were observed with scanning electron microscopy. As a result, it was shown that 24-epiBL treatment against NaCl stress may play an effective role in salt tolerance in M-28 tomato hybrid cultivar

    Analysing the Job Satisfaction and Emotional Exhaustion of the Academicians Working at the Universities in Eskişehir with Log-Linear Modeling and Correspondence Analysis

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    Çalışmada üniversite (Osmangazi ve Anadolu Üniversiteleri) akademik personelinin (araştırma görevlisi, öğretim görevlisi ve yardımcı doçent) iş tatminleri ve duygusal tükenmişlikleri, cinsiyet ve akademi kadro düzeyinde araştırılmaya çalışılmıştır. Çok değişkenli kategorik veri analizi için kullanılan tekniklerden ikisi olan log linear (logaritmik doğrusal) analiz ve correspondence (uyum) analizi ele alınmıştır. Araştırma kapsamında elde edilen verilere öncelikle log linear analiz uygulanarak anlamlı bulunan ikili ve üçlü etkileşimler belirlenmiştir. Daha sonra correspondence analizi ile incelenen değişkenler ve düzeylerinin ilişkileri görselleştirilerek yorumlanmıştır. In this study it is tried to be investigated that the job satisfaction and emotional exhaustion of the academicians (research assitant, lecturer, assistant professor working at the Osmangazi University and Anadolu University) according as the gender and academic positions. Log linear analysis and correspondence analysis which are two of the techniques used for the multivariate analysis of categorical data are handled. Firstly binary and triple interactions are determined by applying log linear analysis to the data obtained under the study. Afterward the relationships of examined variables and their levels are interpreted by visualizing with correspondence analysis

    INEFFICACY OF DAPSON TREATMENT IN A PATIENT WITH ERYTHEMA DYSCHROMICUM PERSTANS

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    Eritema diskromikum perstans gövde, ekstremiteler, yüz ve boyunda simetrik dağılım gösteren, asemptomatik ve yavaş ilerleyen kül grisi renginde maküllerle karakterize nadir görülen, benign, kronik ve idiyopatik bir pigmentasyon bozukluğudur. Bu hastalıkta tamamen etkili olan bir tedavi seçeneği henüz mevcut değildir. Birçok tedavi seçeneğinin denendiği görülmüş, ancak klofazimin ve dapson dışındaki tedavilerin büyük çoğunluğunun etkisiz olduğu bildirilmiştir. Burada dapson tedavisine yanıtsız EDP'lu 36 yaşında bir erkek olgu sunulmaktadır Erythema dyschromicum perstans is an uncommon, benign, chronic, idiopathic pigmentary disorder characterized by asymptomatic, slowly progressive, ashy-gray macules over the trunk, extremities, face and neck with symmetrical distribution. No consistently effective treatment is yet available for this disease. Many therapeutic options have been tried, but the majority of them have been ineffective except clofazimine and dapson. Herein, we report a 36-year-old male of EDP who did not response to dapson treatment

    Psoriasis and 5HT-R2C Gene Polymorphism: Association between Clinical, Demographic and Therapeutic Parameters in the Turkish Population

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    We aimed to investigate the relationship between single nucleotide polymorphism (SNP) in the promoter region of the 5-HT-R2C gene and stress-related disease psoriasis in the Turkish population. The putative association between the 5-HTR2C variant (rs6318 Cys23Ser allele) and patients with psoriasis was investigated. 100 patients with psoriasis and 100 age-sex matched, unrelated healthy subjects representing the control group were included in the study. The PCR-RFLP method was used for genotyping the 5-HTR2C variation. There was no statistically difference in terms of genotype distributions and allele frequencies between the control subjects and patients with psoriasis (P=0.360 and P=0.439, respectively). The comparison between the presence and absence of the 5-HTR2C gene rs6318 G allele within the determined clinical subsets resulted in a significant difference with regard to treatment methodology only when conventional therapy and one or more medical therapy was compared (P=0.021). This study is the first clinical study to investigate the association between 5-HTR2C polymorphism and psoriasis. The role of the 5-HTR2C gene should be examined with more parameters in a larger case series

    Salivary and serum concentrations of monocyte chemoattractant protein‐1, macrophage inhibitory factor, and fractalkine in relation to rheumatoid arthritis and periodontitis

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    Background: Monocyte chemoattractant protein-1 (MCP-1), macrophage migration inhibitory factor (MIF), and fractalkine are chemokines that are expressed by a variety of cell types to regulate macrophage inflammatory response. The aim of the study was to examine the effects of periodontitis and rheumatoid arthritis (RA) on their serum and salivary concentrations.Methods: Adults with either periodontitis (P, n = 21), or with rheumatoid arthritis (RA, n = 23), or with both diseases (RA+P, n = 23) were included in the study. Systemically and periodontally healthy individuals (n = 22) served as controls. Saliva and serum samples were collected from all participants before the medical and periodontal examinations. Salivary and serum MCP-1, MIF, and fractalkine concentrations were measured by the Luminex technique. Total salivary protein levels were determined by the Bradford assay.Results: Salivary MCP-1, MIF, and fractalkine concentrations were elevated in both RA groups (RA+P and RA) in comparison with systemically healthy controls. As related to total salivary protein levels, higher MCP-1 (P = 0.003) and fractalkine (P = 0.045) concentrations were found in controls compared with the P group. In serum, MCP-1 concentrations in the RA+P group were higher (P = 0.003) than those of group P. Elevated serum fractalkine concentrations were observed in both periodontitis groups (RA+P, P = 0.014; and P, P = 0.013) compared with controls.Conclusions: In RA, MCP-1, MIF, and fractalkine concentrations are elevated in saliva. These chemokines may disrupt oral macrophage responses and potentially take part in the interaction between periodontitis and RA.</p

    Salivary and serum levels of neutrophil proteases in periodontitis and rheumatoid arthritis

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    Objective: The aim was to profile serum and salivary levels of active-matrix metalloproteinase (aMMP)-8, tissue inhibitor MMP (TIMP)-1, aMMP-8/TIMP-1 ratio, total MMP (tMMP)-9, tMMP-9/TIMP-1 ratio, myeloperoxidase (MPO), and human neutrophil elastase (HNE) in periodontitis and rheumatoid arthritis (RA).Materials and Methods: Rheumatoid arthritis patients with periodontitis (RA + P, n = 26), periodontally healthy RA patients (RA, n = 23), systemically healthy periodontitis patients (P, n = 24), and controls (C, n = 24) were included. aMMP-8 levels were determined by a time-resolved immunofluorescence assay (IFMA), TIMP-1, tMMP-9, MPO, and HNE levels were measured by enzyme-linked immunosorbent (ELISA) assays.Results: Higher salivary aMMP-8 (p < 0.001), aMMP-8/TIMP-1 ratio (p = 0.043), tMMP-9 (p = 0.011), tMMP-9/TIMP-1 ratio (p = 0.022), MPO (p = 0.026) and HNE (p < 0.001) levels were detected in P relative to the controls. Salivary TIMP-1 was increased in RA patients regardless of periodontal status (RA + P vs. P: p = 0.038; RA vs. C: p = 0.020). Serum neutrophil proteases were increased in RA groups (RA + P, RA) compared to systemically healthy groups (P, C) (p < 0.05).Conclusions: Serum levels of neutrophil proteases were increased in RA study groups; however rheumatologic status seemingly does not affect salivary levels of these proteins
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