16 research outputs found
Bioactivities of Some Wild Fruits Grown in Turkey
No full textIn this study some bioactive properties of extracts of wild pear (Pyrus elaegnifolia), hawthorn (Crataegus spp.), oriental hackberry (Celtis tournefortii), oleaster (Elaeagnus angustifolia), Japanese crabapple (Malus floribunda), rosehip (Rosa canina), pedunculate oak (Quercus robur), service tree (Sorbus domestica) and firethorn (Pyracantha coccinea) wildly growing in Turkey were investigated. The fruit extracts were analysed in terms of total phenolic content (TPC), antioxidant activities (DPPH and phosphomolybdenum methods) and antimicrobial activity. In the results, TPC, IC50 value of DPPH and IC50 value of phosphomolybdenum for pedunculate oak were 454.35 mg GAE/g d.w., 340.52 mg AAE/g d.w. and 96.52%, respectively. Service tree and firethorn exhibited the lowest TPC (4.11 mg GAE/g d.w.) and IC50 value of DPPH (53.32 mg AAE/g d.w.), respectively. Moreover, antimicrobial activity of oleaster was 2.46%. The hackberry fruit extract had no inhibitory effect against the tested microorganisms whereas pedunculate oak extract (with 10%) had the highest inhibitory effect against Aeromonas hydrophila. Additionally, all the fruit extracts had no antimicrobial activity against the Saccharomyces cerevisiae. In conclusion, wild edible fruit extracts can be used as bioactive material due to their antioxidant and antimicrobial activity in food industry and human nutrition
A content analysis of scientific studies on recreation on disabled individuals in Turkey (2001-2020)
No full textBu çalışma Türkiye'de rekreasyon alanında engelli gruplar üzerine yapılan bilimsel çalışmaların analiz edilmesi ve analiz sonucunda hangi alanlarda eksikliğin olduğunu tespit etmek amacıyla yapılmıştır. Araştırmada kaynak taraması yöntemi kullanılmıştır. Türkiye'de 25 ilde yapılmış toplamda 83 akademik çalışma (15 doktora tezi, 48 yüksek lisans tezi ve 20 makale) incelenmiştir. İncelenen çalışmaların 41'i nicel, 37'si nitel ve 5'i karma desen çalışmalarıdır. Yapılan incelemede, 2003 öncesi herhangi bir çalışmanın olmadığı ve çalışmaların büyük bir bölümünün (%77,14) 2010 ve sonraki yıllarda yapıldığı tespit edilmiştir. İncelenen çalışmalarda örneklem büyüklüğü ise ağırlıklı olarak 40 ve altı (%66,25) katılımcının olduğu saptanmıştır. Yapılan incelemede yazar sayısına göre dağılımı incelendiğinde ağırlıklı olarak (%83,14) bir yazarlı olduğu tespit edilmiştir. İncelenen çalışmalar sonucunda genel olarak engelli bireylere yönelik yapılan rekreatif ve sportif etkinlikler engelli bireylerin başta sağlık problemlerini azaltmada, kendini zinde hissetmede ve en önemli olgu olarak yaşam kalitelerini arttırmada pozitif yönlü katkı sağladığı görülmektedir. Araştırmanın sonucunda; yapılan çalışmaların büyük çoğunluğunun son yıllarda olduğu, en fazla tek yazarlı çalışmalar ve yüksek lisans tezi olduğu, nicel ve nitel yöntemin dengeli sayıda olmasının yanında karma yöntemin çok az kullanıldığı, yapılan çalışmaların büyük çoğunluğunun Beden Eğitimi ve Spor Ana Bilim Dalı'nda yapıldığı ve zihinsel engelliler üzerine olduğu görülmüştür.This study was carried out in order to analyze the scientific studies on disabled groups in the field of recreation in Turkey and to determine in which areas there are deficiencies as a result of the analysis. Source scanning method was used in the research. A total of 83 academic studies (15 doctoral dissertations, 48 master's theses and 20 articles) conducted in 25 provinces in Turkey were examined. 41 of the examined studies are quantitative, 37 qualitative and 5 mixed design studies. In the examination, it was determined that there was no study before 2003 and that most of the studies (77,14%) were carried out in 2010 and later years. The sample size of the studies examined was predominantly 40 and below (66.25%) participants. When the distribution according to the number of authors is examined, it has been determined that there is predominantly (83.14%) one author. As a result of the studies examined, it is seen that the recreational and sportive activities made for disabled individuals in general contribute positively to reducing the health problems of the disabled individuals, making them feel fit and increasing their quality of life as the most important phenomenon. As a result of the research; Most of the studies are in recent years, mostly single-authored studies and master's thesis, quantitative and qualitative methods are balanced in number, mixed method is used very little, most of the studies are done in the Department of Physical Education and Sports, and people with mental disabilities are mentally handicapped. Was found on
Research on the Repeated Use of Novel Ferrocene-Tagged Nanomaterial for Determination of Glucose
No full textA good novel double ferrocene-tagged nanomaterial is designed for glucose determination and its recycling stability. Double Ferrocene-tagged nanomaterial displays higher catalytic activity toward the glucose oxidation than non-ferrocene-tagged nanomaterial. In this study novel nanoparticles including double ferrocene, N-{2-[Bis(2-aminoethyl)amino]ethyl}aminomethyl-polystyrene (2AEPS) and ferrocene aldehyde (Fc) have been synthesized by means of condensation and investigated the enzymatic properties of glucose oxidase enzyme (GOD) immobilized on there. Double ferrocene-tagged nanomaterial-GOD shows high reusability and storage capacity and fast incubation time determination of glucose. 2AEPSFc-GOD retains more than 15% of the initial activity after forty five successive cycles, which is a perfect performance.Gazi University Research FundGazi University [05/2011-59, 05/2014-02]This work was supported by the Gazi University Research Fund (Project number: 05/2011-59 and 05/2014-02)
Retrospective Evaluation of Anaesthetic Techniques for Caesarean
No full textObjective: This study aimed to evaluate the maternal, foetal and neonatal effects of anaesthetic techniques used in caesarean sections (C/S) retrospectively over 6 years at the Hospital of Medical School of Dokuz Eylul University and to compare the results with the literature from Turkey and developed countries
A classification of 1-well-covered graphs
No full textA graph is well-covered if all its maximal independent sets have the same size. If a graph is well-covered and remains well-covered upon removal of any vertex, then it is called 1-well-covered graph. It is well-known that [n/2] + 1 = 1 and vertical bar G vertical bar = n. We further present some combinatorial properties of such graphs. In particular, we provide a tight upper bound on the size of those graphs in terms of k, namely vertical bar G vertical bar <= 10k - 2, also we show that Delta(G) <= 2k + 1 and alpha(G) <= min{4k - 1,n - 2k}. This particularly enables us to obtain a characterization of such graphs for k = 1, which settles a problem of Levit and Mandrescu [14].TUBITAK (The Scientific and Technological Research Council of Turkey) [121F018]This research has been supported by TUBITAK (The Scientific and Technological Research Council of Turkey) under the project number 121F018. The author would like to thank the anonymous referee for useful suggestions that improved the presentation of this work. The author also would like to thank Mehmet Akif Yetim for many helpful discussions
A rare complication of percutaneous coronary intervention: Coronary pseudoaneurysm formation
No full textCoronary pseudoaneurysms (CPAs) are rare complications developed after percutaneous coronary interventions. They may cause stent thrombosis, distal embolization, and coronary rupture leading to cardiac tamponade. Therefore, high-risk CPA should be promptly treated after diagnosis. They can be managed with percutaneous or surgical intervention. Herein, we aimed to present a patient who developed CPA 3 weeks after percutaneous coronary intervention and successfully treated with percutaneous intervention using a covered stent. © 2017 The Author(s
Evaluation of homocystein and asymmetric dimethyl arginine levels in patients with coronary slow flow phenomenon
No full textBackground: Previous studies have demonstrated that homocysteine and asymmetric dimethyl arginine (ADMA) levels were strongly associated with cardiovascular diseases including coronary artery disease. The aim of this study was to investigate the role of plasma homocysteine and ADMA levels in the pathogenesis of coronary slow flow (CSF) phenomenon. Methods: Twenty-three patients with CSF and 25 controls with normal coronary flow were included in this study. The quantitative measurement of coronary blood flow was performed using the thrombolysis in myocardial infarction frame count method. Plasma homocysteine and ADMA levels were determined using enzymatic assays from venous blood samples. Results: The patients with CSF had significantly higher plasma homocysteine levels than controls (16.2 ± 7.6 vs. 12.2 ± 2.2 ?M/L; p = 0.023). The uric acid levels were significantly higher in CSF group than controls (5.4 ± 1.1 vs. 4.6 ± 0.9 mg/dl; p = 0.011). Plasma ADMA levels were also higher in the CSF group; however, this was not statistically significant (0.6 ± 0.1 vs. 0.5 ± 0.2 ?M/L; p = 0.475). Conclusions: Increased homocysteine and uric acid levels may play an important role in the pathogenesis of CSF. Further large scale studies are required to determine the relationship between ADMA levels and CSF. © 2019 The Author(s).Funding sources: No financial funding was received for this study
Influence of Intermittent Fasting During Ramadan on Circadian Variation of Symptom-Onset and Prehospital Time Delay in Acute ST-Segment Elevation Myocardial Infarction
No full textRamadan interferes with circadian rhythms mainly by disturbing the routine patterns of feeding and smoking. The objective of this study was to investigate the circadian pattern of ST elevation acute myocardial infarction (STEMI) during the month of Ramadan. We studied consecutive STEMI patients 1 month before and after Ramadan (non-Ramadan group-NRG) and during Ramadan (Ramadan group-RG). The RG group was also divided into two groups, based on whether they chose to fast: fasting (FG) and non-fasting group (NFG). The time of STEMI onset was compared. A total of 742 consecutive STEMI patients were classified into 4 groups by 6 h intervals according to time-of-day at symptom onset. No consistent circadian variation in the onset of STEMI was observed both between the RG (P =.938) and NRG (P =.766) or between the FG (P =.232) and NFG (P =.523). When analyzed for subgroups of the study sample, neither smoking nor diabetes showed circadian rhythm. There was a trend towards a delay from symptom onset to hospital presentation, particularly at evening hours in the RG compared with the control group. In conclusion, there was no significant difference in STEMI onset time, but the time from symptom onset to hospital admission was significantly delayed during Ramadan. © The Author(s) 2022
Echocardiographic measurement of epicardial adipose tissue thickness in patients with microvascular angina
No full textIntroduction: Impaired coronary microcirculation, inflammation, and endothelial dysfunction were reported etiological factors for microvascular angina (MVA). Recently, increased epicardial adipose tissue (EAT) thickness has been associated with hypertension, metabolic syndrome, and coronary artery disease in general population. In this study, we aimed to evaluate the EAT thickness in patients with MVA. Methods: This study enrolled 200 patients (83 males; mean age: 55.4 ± 8.2 years) who have been diagnosed with MVA and 200 controls (89 males; mean age: 54.4 ± 8.5 years). All patients underwent transthoracic echocardiography, and EAT thickness was measured from a parasternal long-axis view as the hypoechoic space on the right ventricular free wall. Results: The mean EAT thickness was significantly higher in MVA patients than the controls (5.5 ± 1.1 vs. 4.9 ± 0.7 mm; p < 0.001). Multiple logistic regression analysis showed that increased EAT thickness was an independent predictor of MVA (OR = 1.183, 95% CI = 1.063-1.489; p = 0.023). In receiver operating characteristic curve analyses, EAT thickness above 5.3 mm predicted MVA with a sentivity of 68% and a specificity of 63% (AUC = 0.711, 95% CI = 0.659-0.762; p < 0.001). Conclusions: The EAT thickness was observed significantly higher in MVA patients as compared to controls. Increased EAT thickness may be associated with mechanisms that play a major role in the pathogenesis of MVA. © 2019 The Author(s)
