Bulunan: 8 Adet 0.001 sn
Koleksiyon [7]
Tam Metin [2]
Yayın Türü [3]
Yazar [20]
Konu Başlıkları [20]
Yayın Dili [1]
Dergi Adı [8]
The effect of different treatment strategies on left ventricular myocardial deformation parameters in patients with chronic renal failure

Yildirim, Ufuk | Gulel, Okan | Eksi, Alay | Dilek, Melda | Demircan, Sabri | Sahin, Mahmut

Article | 2018 | INTERNATIONAL JOURNAL OF CARDIOVASCULAR IMAGING34 ( 11 ) , pp.1731 - 1739

The aim of this study was to compare left ventricular (LV) functions by speckle tracking echocardiography (STE) in chronic kidney disease (CKD) patients in various stages and under different renal replacement treatments in order to evaluate possible differences between them. This prospective study included 150 patients with CKD. Renal transplantation patients with glomerular filtration rate greater than 60ml/min/1.73m(2), patients receiving hemodialysis three times a week, and patients in the predialysis stage with glomerular filtration rate less than 30ml/dk/1.73m(2) were assigned into Group 1 (n=50), Group 2 (n=50), and Group 3 (n . . .=50), respectively. LV longitudinal, circumferential, and radial myocardial deformation parameters (strain, strain rate [SR], rotation, twist) were evaluated by STE. Peak systolic longitudinal strain was higher in the transplantation group than the hemodialysis group (-19.93 +/- 3.50 vs-17.47 +/- 3.28%, Daha fazlası Daha az

An assessment of the relationship between thyroid nodule characteristics, insulin resistance and arterial stiffness in euthyroid nodular goiter

Aydogan, Yasemin | Altay, Mustafa | Unsal, Oktay | Kaplanoglu, Veysel | Cagir, Yavuz | Yildiz, Canan | Beyan, Esin

Article | 2018 | ENDOCRINE62 ( 2 ) , pp.440 - 447

ObjectivesPublications suggesting that thyroid nodule might be associated with insulin resistance and metabolic syndrome are quite interesting. There is a need for studies assessing the relationship between nodule presence and cardiovascular risk in individuals with non-functioning nodular goiter. The purpose of the present study is to reveal whether or not insulin resistance, nodule presence, and nodule stiffness affect arterial stiffness, which is a reliable and valid cardiovascular risk indicator, in individuals with euthyroid nodular goiter using the pulse wave analysis (PWA).Materials and methods50 patients with euthyroid nodul . . .ar goiter and 50 healthy volunteers were included in the study. All participants were examined by B-mode thyroid ultrasound, and the participants in the nodular goiter group were also examined by strain elastography (SE). The strain index of nodules was calculated according to the Rago scoring. Also, fasting plasma glucose (FPG) and insulin levels were measured, and HOMA-IR. Arterial stiffness measurements of the participants were performed using a PWA device which employs a cuff-based oscillometric method from the brachial artery.ResultsPWV was found to be significantly higher in the euthyroid nodular goiter group ( Daha fazlası Daha az

Kalayci, Suleyman | Akbulut, Aylin | Koca, Gokhan | Yigit, Hasan | Korkmaz, Meliha

Editorial | 2018 | JOURNAL OF NUCLEAR CARDIOLOGY25 ( 4 ) , pp.1433 - 1435

WOS: 000442667600059 PubMed: 28975578

Prediction of unfavorable outcomes in cryptococcal meningitis: results of the multicenter infectious Diseases International Research Initiative (ID-IRI) cryptococcal meningitis study (vol 37, pg 1231, 2018)

Hakyemez, I. N. | Erdem, H. | Beraud, G. | Lurdes, M. | Silva-Pinto, A. | Alexandru, C. | Bishop, B.


In the original version of this article, Mustafa Sunbul was not included in the list of authors for this article. The name has been added accordingly.

The role of patient's systemic characteristics and plateletcrit in developing toxic anterior segment syndrome after uneventful phaco surgery: A case-control study

Yazgan, Serpil | Celik, Ugur | Ayar, Orhan | Ugurbas, Suat Hayri | Celik, Burcu | Akdemir, Mehmet Orcun | Ugurbas, Silay Canturk

Article | 2018 | INTERNATIONAL OPHTHALMOLOGY38 ( 1 ) , pp.43 - 52

Purpose To compare the systemic and ocular characteristics and laboratory findings of patients developing toxic anterior segment syndrome (TASS) after uneventful phaco surgery with unaffected subjects undergoing the same surgery in the same session. Design A retrospective case-control study. Methods The study group consisted of 26 eyes of 26 patients who underwent uneventful phaco surgery and who went on to develop TASS, while the control group included 39 subjects who had routine phaco surgery in the same session by the same surgeon. The sterilization stages of reusable instruments, disposable instruments, and compositions were rec . . .orded. The preoperative systemic diseases, complete blood count parameters, glycosylated hemoglobin (HbA1c), biochemical parameters, thyroid hormone profiles, and the surgical features were compared between the two groups. Results Type 2 diabetes mellitus (DM), systemic hypertension (HT), hyperlipidemia, chronic ischaemic heart disease, and chronic renal failure were significantly more common in the TASS group (p < 0.05). Proliferative diabetic retinopathy was also more frequent in the TASS group (p = 0.003). Mean HbA1c% values, white blood cell count, neutrophil/lymphocyte ratio, platelet counts, platelet distribution width, and plateletcrit parameters were significantly higher in the TASS group (p < 0.05). Multivariate logistic regression analysis revealed that a high plateletcrit level (p = 0.001, odds ratio [95% CI]; 22.27 [3.36-147.76]) and systemic HT (p = 0.044, odds ratio [95% CI]; 7.13 [1.05-48.12]) are independently associated with the development of TASS. Conclusion Although TASS may arise as a result of insufficient sterilization of instruments or intraocular solutions, patient factors may also contribute to its development. Systemic vascular disorders such as uncontrolled type 2 DM, systemic hypertension, and hyperlipidemia may increase the risk of TASS after uneventful phaco surgery. Abnormal parameters associated with systemic inflammation, such as higher plateletcrit level, may facilitate the development of TASS. These findings may be a predicting factor of TASS development for uneventful cataract surgeries Daha fazlası Daha az

Solid-Phase Microextraction and Determination of Tin Species in Beverages and Food Samples by Using Poly (epsilon-Caprolactone-b-4-Vinyl Benzyl-g-Dimethyl Amino Ethyl Methacrylate) Polymer in Syringe System: a Multivariate Study

Zounr, Rizwan Ali | Tüzen, Mustafa | Hazer, Baki | Khuhawar, Muhammad Yar

Article | 2018 | FOOD ANALYTICAL METHODS11 ( 9 ) , pp.2538 - 2546

A new solid-phase microextraction (SP mu E) procedure has been developed for separation and preconcentration of Sn ions by using graphite furnace atomic absorption spectrometry (GFAAS). This technique is based on the complexation of Sn(IV) ions with 1-(2-pyridylazo)-2-naphthol (PAN). The poly (epsilon-caprolactone-b-4-vinyl benzyl-g-dimethyl amino ethyl methacrylate) polymer (PCL vacr) was used as an adsorbent, and it was loaded in micropipette tip of syringe system. Sn(IV) ions were adsorbed on polymer at pH 6. Different experimental conditions were optimized such as pH, amount of complexing agent, and amount of adsorbent. The dete . . .ction limit (LOD), limit of quantification, preconcentration factor (PF), and relative standard deviation (RSD) were found as 4.5 ng L-1, 13.5 ng L-1, 100, and 3.3%, respectively. Certified reference materials were used to confirm the accuracy of the investigated procedure, and the procedure was successfully practiced for determination of entire concentration of tin within beverages and different food samples Daha fazlası Daha az

Electrodeposition of Si-DLC nanocomposite film and its electronic application

Basman, Necati | Uzun, Rukiye | Gocer, Ebru | Bacaksiz, Emin | Kolemen, Ugur


In this study, a silicon doped diamond-like carbon (DLC) nanocomposite film was deposited electrochemically and it was used to fabricate an Ag/Si-DLC/p-Si metal-interlayer-semiconductor (MIS) Schottky diode. Methanol (CH3OH) was used as carbon and tetraethoxysilane (Si(OC2H5)(4)) as Si source, respectively. Morphology of the film was observed by scanning electron microscopy and continuous surface with numerous lumps spread randomly was observed. Structural and chemical composition analyses of the film were carried out by Raman and X-ray photoelectron spectroscopy. Typical D and G bands of DLC films were not observed in the Raman spe . . .ctrum due to abundance of Si-C bonds. Silicon incorporation promoted the film deposition and increased sp(3) bonds in the film. Current-Voltage (I-V) measurement was conducted to obtain parameters of the MIS diode. The diode exhibited a good rectifier behavior with similar to 10(3) rectification ratio. In the forward bias semi-logarithmic I-V plot, two linear regions with different slopes were observed. Such behavior was modelled by two parallel diodes and attributed to different conduction mechanism. The main electrical parameters, such as barrier height, ideality factor and series resistance were calculated by I-V and Cheung-Cheung methods. The Si-DLC nanocomposite film acted as barrier height modifier in the MIS diode Daha fazlası Daha az

Thermal characterization of Er-doped and Er-Gd co-doped ceria-based electrolyte materials for SOFC

Torun, Handan Ozlu | Cakar, Soner

Article | 2018 | JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY133 ( 3 ) , pp.1233 - 1239

Ce1-xErxO2 and Ce1-2xErxGdxO2 co-doped ceria electrolyte nanopowder materials were successfully prepared by sol-gel method. Depending on the temperature, the crystal structure changes were analyzed by X-ray diffraction. It was observed that the crystal size of the electrolytes decreased depending on the temperature and the time. X-ray diffraction results confirmed cubic fluorite structure in the samples. The microstructural properties of the samples were analyzed by scanning electron microscopy, and thermal stability measurement was performed by thermogravimetric and differential thermal analyses. The total electrical conductivity o . . .f the nanopowder electrolytes was determined by the dc four-point probe technique in air at temperatures ranging from room temperature to 1373 K. The four-probe conductivity results revealed that Ce0.8Er0.1Gd0.1O2 has a higher ionic conductivity compared to Ce0.83Er0.17O2 at 1123 K. The four-probe conductivity results show that both Ce1-xErxO2 and Ce1-2xErxGdxO2 solid electrolytes have potential application to oxide ionic conductor for solid oxide fuel cells Daha fazlası Daha az

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