Investigation of photophysical behaviours and antimicrobial activity of novel benzo-15-crown-5 substituted coumarin and chromone derivatives

Two different series of crown ether compounds (4-11) were synthesized by the reactions of 4',5'-bis(bromomethyl)benzo-15-crown-5 (3) and 4'-amino-benzo-15-crown-5 with hydroxycoumarin and chromone derivatives. Coumarin-crown ether compounds (4 and 5) were synthesized by the reactions of 4',5'-bis(bromomethyl)benzo-15-crown-5 (3) with 4-hydroxycoumarin and 7-hydroxycoumarin. Chromone-crown ether compounds (6-11), were synthesized by the condensation reactions of 4'-aminobenzo-15-crown-5 with 3-formylchromone and 6-methyl-3-formylchromone in different solvent media. Sodium and potassium complexes (4a-11a, 4b-11b) of new coumarin and chromone substituted benzo-15-crown-5 (B15C5) ligands (4-11) were prepared with NaSCN and KSCN, respectively. The syntheses of the novel crown ether compounds (4-11) and complexes (4a-11a, 4b-11b) were elucidated by the elemental analysis, FTIR, H-1 NMR, C-13 NMR and MS spectral data. The metal selectivities and effects of metal cations (Li+, Na+, K+, Mg2+, Ca2+, Ba2+, Ag+, Al3+, Cu2+, Zn2+, Ni2+, Pb2+, Fe3+, Cr3+) to the new crown ether compounds (4-11) were investigated by the absorption and fluorescence spectra. In addition, all of these substances were examined for antibacterial activity against pathogenic strains Listeria monocytogenes 4b, Staphylococcus aureus, Escherichia coli, Salmonella typhi H, Bacillus cereus, Micrococcus luteus, Shigella dysenteria type 2, Staphylococcus epidermidis, Proteus vulgaris, Klebsiella pneumonia sp., Serratia marcescens sp. and antifungal activity against Candida albicans. (C) 2019 Elsevier B.V. All rights reserved

Utility of brain parenchyma density measurement and computed tomography perfusion imaging in predicting brain death

Purpose: To assess the utility of brain parenchyma density measurement on unenhanced computed tomography (CT) in predicting brain death (BD), in order to evaluate the added value of CT perfusion (CTP). Material and methods: A total of 77 patients who were clinically diagnosed as BD and had both CT angiography (CTA) and CTP imaging in the same session were retrospectively reviewed. On unenhanced phase of CTA, density measurement was performed from 23 regions of interests (ROIs) which were located in the following areas: level of basal ganglia (caudate nucleus, putamen, corpus callosum, posterior limb of internal capsule), level of brainstem, greywhite matters on levels of centrum semiovale (CS), high convexity (HC), and cerebellum. CTP images were evaluated qualitatively and independently. Grey matter (GM), white matter (WM), density, and GM/WM density ratio of BD patients were compared with control subjects. Results: Comparing with the normal control group, the GM and WM density at each level and GM/WM density ratio of CS, HC, and cerebellum level were significantly lower in brain-dead patients (p = 0.019 for HC-WM, p < 0.001 for other areas). Using ROC analysis, the highest value of area under curve (AUC) for the GM/WM density ratio was found at the HC level (AUC = 0.907). The sensitivity of the GM/WM density ratio at the HC level was found to be 90% when the cut-off value of 1.25 was identified. Evaluating the GM/WM density ratio together with the CTP results increased the sensitivity further to 98%. Conclusions: The GM/WM density ratio at the HC level on unenhanced CT may be a useful finding to predict BD. Also, the addition of CTP increases the sensitivity of this method

Isolation and Characterization of Rhizobium Strains from Wild Vetch Collected from High Altitudes in Erzurum-Turkey

WOS: 000275272200012Recently, there has been a growing level of interest in environmental friendly sustainable agricultural practices and organic farming systems. Increasing and extending the role of biofertilizers such as Rhizobium would decrease the need for chemical fertilizers and reduce adverse environmental effects. Thus, in the development and implementation of sustainable agriculture techniques, biofertilization is of big importance in alleviating the deterioration of natural and environmental pollution. Besides, the assessment of rhizobial genetic diversity is contributing both to the worldwide knowledge of the biodiversity of soil microorganisms and to the utility of rhizobial collections. Particularly, in the last decades, the use of molecular techniques has been contributed greatly to enhance the knowledge of rhizobial diversity. This study was conducted in order to determine the phenotypic and genotypic characterization of Rhizobium leguminosarum subsp. viciae strains that were isolaled from perennial wild vetch (Vicia cracca) collected from high attitudes (2000-2500 m) in mountains of Erzurum, Eastern Anatolia, Turkey. In this work, rep-PCR (ERIC-, REP- and BOX-PCR) fingerprinting method was used for the genotypic characterization of R. leguminosarum subsp. viciae strains isolated from perennial wild vetch. As a result, a high intraspecies diversity was observed in the rep-PCR (ERIC-, REP- and BOX-PCR) analysis with BOX, ERIC and REP primers between R. leguminosarum subsp. viciae strains

Assessment of relationship between pain, psychological status, quality of life and body mass index

Objective: The purpose of the study is to evaluate health-related quality of life (HRQL), pain, the number of painful areas, and depression level; both to compare obesity level and these parameters, and to compare between obese and non-obese participants. Materials (Subjects) and Methods: 1875 voluntary patients were evaluated. Patients were grouped into 5 according to body mass index (BMI) values: Group 1:17-24.99kg/m2, Group 2:25-29.99kg/m2, Group 3:30-34.99kg/m2, Group 4:35-35.99kg/m2, Group 5: BMI more than 40kg/m2. Patients were asked to fulfill a questionnaire about demographic data and a number of painful areas (neck, shoulder, elbow, wrist, back, low back, knee, ankle, and temporomandibular joint). All patients were evaluated with visual analog scale (VAS), for pain, short form-36 (SF-36) for HRQL, Beck Depression Scale (BDS) for depression level. Results:We have included 1832 patients (460 male, and 1372 female) in the study: Group 1: 285(16%), Group 2: 623(34%), Group 3: 653(36%), Group 4: 190(10%), Group 5: 81(4%). When the groups was compared according to VAS scores during activity; all other groups was higher than group 1 (p<0.01). When the BDS scores were compared; depression levels were higher in group 5 than the other groups. When a number of painful areas were compared; groups 3,4,5 had higher values than groups 1,2, and group 2 had higher values than group 1 (p<0.001). Conclusion: This study evaluates pain level, the number of painful areas, physical HRQL, and depression levels of pre-obese and obese patients using VAS, BDS, and SF-36 scores and proves negative effects when compared to the healthy population. But this effect does not correlate with BMI levels.Objective: The purpose of the study is to evaluate health-related quality of life (HRQL), pain, the number of painful areas, and depression level; both to compare obesity level and these parameters, and to compare between obese and non-obese participants. Materials (Subjects) and Methods: 1875 voluntary patients were evaluated. Patients were grouped into 5 according to body mass index (BMI) values: Group 1:17-24.99kg/m2, Group 2:25-29.99kg/m2, Group 3:30-34.99kg/m2, Group 4:35-35.99kg/m2, Group 5: BMI more than 40kg/m2. Patients were asked to fulfill a questionnaire about demographic data and a number of painful areas (neck, shoulder, elbow, wrist, back, low back, knee, ankle, and temporomandibular joint). All patients were evaluated with visual analog scale (VAS), for pain, short form-36 (SF-36) for HRQL, Beck Depression Scale (BDS) for depression level. Results:We have included 1832 patients (460 male, and 1372 female) in the study: Group 1: 285(16%), Group 2: 623(34%), Group 3: 653(36%), Group 4: 190(10%), Group 5: 81(4%). When the groups was compared according to VAS scores during activity; all other groups was higher than group 1 (p<0.01). When the BDS scores were compared; depression levels were higher in group 5 than the other groups. When a number of painful areas were compared; groups 3,4,5 had higher values than groups 1,2, and group 2 had higher values than group 1 (p<0.001). Conclusion: This study evaluates pain level, the number of painful areas, physical HRQL, and depression levels of pre-obese and obese patients using VAS, BDS, and SF-36 scores and proves negative effects when compared to the healthy population. But this effect does not correlate with BMI levels

Vitamin D Levels in Children During Winter and the Relationship Between Sunscreen and Sun Protection Behaviors

Introduction: Sunlight is the major source of vitamin D, thus, the use of sunscreens could result in vitamin D insufficiency or deficiency. Objective: We aimed to assess serum vitamin D levels in healthy children aged 0-18 years in the winter and determine the association between sunscreen use and sun protection behaviors on vitamin D status. Methods: The demographic data, clothing style, skin type, history of sunburn, history of visiting seaside towns in summer, sun protection behaviors including sunscreen use, wearing sunglasses and hats, and further detailed information about sunscreen use were recorded. Vitamin D status was assessed by measuring blood levels of 25(OH)D during winter. Results: Three hundred seventy-six children (172 boys and 204 girls) with a mean age of 128.38±56.39 months were enrolled. The mean serum level of 25(OH)D was 15.32±8.64 ng/mL. The mean values of vitamin D were associated with age, sex, traditional clothing style, having a sunburn history, and sunscreen use (p0.05). Conclusions: Sunscreen use appears to reduce vitamin D levels measured in winter. Children, especially girls and adolescents, should be exposed to sufficient sunlight to maintain normal serum vitamin D levels. Vitamin D supplementation should be given to children, especially during winter

HOMOCYSTEINE, PYRIDOXINE, FOLATE AND VITAMIN B12 LEVELS IN CHILDREN WITH ATTENTION DEFICIT HYPERACTIVITY DISORDER

Background: In our study, we aimed to evaluate the serum homocysteine levels, pyridoxine, folate and vitamin B12 levels in children with attention deficit hyperactivity disorders (ADHD). Subjects and methods: This study included 30 newly diagnosed drug-naive children with ADHD (23 males and 7 female, mean age 9.3±1.8 years) and 30 sex-and age matched healthy controls. The diagnosis of ADHD was made according to DSM-V criteria. Children and adolescents were administered the Schedule for Affective Disorders and Schizophrenia for School Aged Children, Present and Lifetime Version, the Conners\u27 Parent Rating Scale-Revised, Long Form, the Conners\u27 Teacher Rating Scale and the Wechsler Intelligence Scale for Children Revised (WISC-R) for all participants. Homocysteine, pyridoxine, folate and vitamin B12 levels were measured with enzyme-linked immunosorbent assay. Results: Homocysteine, pyridoxine, folate and vitamin B12 levels were significantly lower in children with ADHD compared with their controls (p<0.05). A positive significant correlation was observed between the all WISC-R scores and vitamin B12 level in patients (r=0.408, p=0.025). Conclusions: The results obtained in this study showed that reduced homocysteine, pyridoxine, folate and vitamin B12 levels could be a risk factor in the etiology of ADHD

An assessment of marital adjustment in patients with rheumatoid arthritis

Aim To investigate marital adjustment in patients with rheumatoid arthritis and factors affecting this. Methods A total of 32 patients diagnosed with Steinbrocker class 1-2 rheumatoid arthritis and 32 healthy individuals from a similar age group were included. Sociodemographic characteristics, the Beck Depression Inventory (BDI), short–form 36(SF-36) and the dyadic adjustment scale (DAS) were evaluated in both groups. A visual analogue scale (VAS), the disease activity score 28 (DAS28) and a health assessment questionnaire (HAQ) were also investigated in the patient group. Results Mean ages were 46.5±9.2 years in the patient group and 47.7±8.1 in the control group (p=0.5). No significant difference was determined between the two groups in terms of sociodemographic characteristics. No statistically significant correlation was observed between erythrocyte sedimentation rate (ESR), patient and physician global VAS, DAS28, HAQ and morning stiffness and DAS total score. Comparison of DAS subunits revealed a significant difference in dyadic satisfaction and affectional expression in the patient and control groups (p=0.046 and p=0.037). A statistically significant negative correlation was observed between duration of the disease and marital adjustment (p=0.01;r= -0.58). Conclusion Due to its progressive and prolonged course rheumatoid arthritis can also affect individuals’ social relationships besides restricted daily living activities. Activation of rheumatoid arthritis did not affect marital adjustment in this study, but adjustment decreased with duration of the disease