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30 results on '"Çobanoglu N"'

2. The contact angle of nanofluids as thermophysical property

Author

Hernaiz, M., Alonso, V., Estellé, P., Wu, Z., Sundén, B., Doretti, L., Mancin, S., Çobanoğlu, N., Karadeniz, Z.H., Garmendia, N., Lasheras-Zubiate, M., Hernández López, L., Mondragón, R., Martínez-Cuenca, R., Barison, S., Kujawska, A., Turgut, A., Amigo, A., Huminic, G., Huminic, A., Kalus, M.-R., Schroth, K.-G., and Buschmann, M.H.

Published
2019
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4. P060 Indications and contraindications for lung transplantation of cystic fibrosis patients in Turkey

Author

Onay, Z.R., Gursoy, T. Ramasli, Aslan, A.T., Eyuboglu, T. Sismanlar, Cakir, E., Cobanoglu, N., Pekcan, S., Cinel, G., Dogru, D., Ozcelik, U., Yalcin, E., Sen, V., Ercan, O., Kilinc, A.A., Yazan, H., Altintas, D., Demir, E., Bingol, A., Sapan, N., Celebi, E., Tugcu, G.D., Ozdemir, A., Harmanci, K., Kose, M., Emiralioglu, N., Tamay, Z., Yuksel, H., Ozcan, G., Topal, E., Can, D., Korkmaz, P., Caltepe, G., Kilic, M., and Ozdogan, S.

Published
2020
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5. P035 Comparison of clinical findings of the patients with cystic fibrosis in terms of diagnosed with and without neonatal screening

Author

Gursoy, T. Ramasli, Onay, Z. Reyhan, Aslan, A. Tana, Eyuboglu, T. Sismanlar, Cakir, E., Cobanoglu, N., Pekcan, S., Cinel, G., Dogru, D., Ozcelik, U., Yalcin, E., Sen, V., Ercan, O., Kilinç, A.A., Yazan, H., Altintas, D.U., Esen, D., Bingol, A., Sapan, N., Celebi, E., Tugcu, G.D., Ozdemir, A., Harmanci, K., Kose, M., Emiralioglu, N., Tamay, Z., Yuksel, H., Ozcan, G., Topal, E., Can, D., Korkmaz, P., Caltepe, G., Kiliç, M., and Ozdogan, S.

Published
2020
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6. P323 Pseudo Bartter Syndrome: the most common complication in the Turkish National Cystic Fibrosis Registry

Author

Sismanlar Eyuboglu, T., Doğru Ersoz, D., Cakır, E., Cobanoglu, N., Pekcan, S., Cinel, G., Yalcın, E., Kiper, N., Sen, V., Selimoglu Sen, H., Ercan, O., Keskin, O., Bilgic Eltan, S., Muhammed Al Shadfan, L., Yazan, H., Altıntas, D.U., Sasihuseyinoglu, S., Sapan, N., Cekic, S., Cokugras, H., Kılınc, A.A., Ramaslı Gursoy, T., Aslan, A.T., Bingol, A., Basaran, A.E., Ozdemir, A., Kose, M., Hangul, M., Emiralioglu, N., Tugcu, G., Yuksel, H., Yılmaz, O., Orhan, F., Gayretli Aydın, Z.G., Topal, E., Tamay, Z., Suleyman, A., Can, D., Bal, C.M., Caltepe, G., and Ozcelik, U.

Published
2019
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7. P311 Clinical features of cystic fibrosis patients with chronic liver disease in the Turkish National Cystic Fibrosis Registry

Author

Sismanlar Eyuboglu, T., Dogru Ersoz, D., Cakır, E., Cobanoglu, N., Pekcan, S., Cinel, G., Yalcın, E., Kiper, N., Sen, V., Selimoglu Sen, H., Ercan, O., Keskin, O., Bilgic Eltan, S., Muhammed Al Shadfan, L., Yazan, H., Altıntas, D.U., Sasihuseyinoglu, S., Sapan, N., Cekic, S., Cokugras, H., Kılınc, A.A., Ramaslı Gursoy, T., Aslan, A.T., Bingol, A., Basaran, A.E., Ozdemir, A., Kose, M., Hangul, M., Emiralioglu, N., Tugcu, G., Yuksel, H., Yılmaz, O., Orhan, F., Gayretli Aydın, Z.G., Topal, E., Tamay, Z., Suleyman, A., Can, D., Bal, C.M., Caltepe, G., and Ozcelik, U.

Published
2019
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8. P059 First results of Turkish National Cystic Fibrosis Registry

Author

Doğru Ersöz, D., Çakır, E., Şişmanlar Eyüboğlu, T., Çobanoğlu, N., Pekcan, S., Cinel, G., Yalçın, E., Kiper, N., Şen, V., Selimoğlu Şen, H., Ercan, Ö., Keskin, Ö., Bilgiç Eltan, S., Muhammed Al Shadfan, L., Yazan, H., Altıntaş, D.U., Şaşihüseyinoğlu, Ş., Sapan, N., Çekiç, Ş., Çokuğraş, H., Ayzıt Atabek, A., Ramaslı Gürsoy, T., Aslan, A.T., Bingöl, A., Başaran, A.E., Özdemir, A., Köse, M., Hangül, M., Emiralioğlu, N., Tuğcu, G., Yüksel, H., Yılmaz, Ö., Orhan, F., Gayretli Aydın, Z.G., Topal, E., Tamay, Z., Süleyman, A., Can, D., Bal, C.M., Çaltepe, G., and Özçelik, U.

Published
2019
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9. Antioxidant effect of β-carotene in cystic fibrosis and bronchiectasis: clinical and laboratory parameters of a pilot study.

Author

Çobanoglu, N, Özçelik, U, Göçmen, A, Kiper, N, and Dogru, D

Subjects
*CAROTENES, *ANTIOXIDANTS, *CYSTIC fibrosis, *BRONCHIECTASIS
Abstract

The carotenoids are potent antioxidants with the ability to quench singlet oxygen and other toxic oxygen species. The aim of this pilot study was to investigate the protective effect of β-carotene on oxidant system in patients with cystic fibrosis (CF) and in patients with bronchiectasis (BE) caused by a reason other than CF. Eighteen children with CF and 15 children with BE followed in the Pediatric Chest Disease Unit of Hacettepe University, and 15 healthy children participated in the study. Compared with the controls, significantly lower plasma levels of β-carotene were found in the CF group and significantly lower plasma levels of vitamin E in the CF and BE groups. The standardization of carotenoid levels for total cholesterol did not significantly attenuate these differences. In addition, there were significantly higher levels of malondialdehyde (a marker of lipid peroxidation) and tumour necrosis factor-α (TNF-α) in children with CF and in children with BE than in normal subjects. After 6 mo of β-carotene supplementation, the plasma levels of βcarotene and vitamin E increased and the plasma levels of TNF-α and malondialdehyde decreased in both groups. Conclusion: Potent antioxidants, β-carotene and vitamin E are deficient in patients with CF and in patients with BE, and they are more susceptible to oxidative damage. These patients may benefit from β-carotene supplementation. [ABSTRACT FROM AUTHOR]

Published
2002

27. Carbon-based Nanofluid Applications in Solar Thermal Energy

Author

Çobanoğlu Nur, Karadeniz Ziya Haktan, and Turgut Alpaslan

Subjects
Environmental sciences, GE1-350
Abstract

Renewable energy sources such as solar, wind and geothermal are proposed as an alternative to fossil fuels whose excessive use causes global warming. The most popular one of the renewable energy sources is considered as solar energy due to the fact that required energy is provided by the sun entire year around the world. Solar energy systems convert the solar radiation to the useful heat or electricity. In order to achieve better performance in solar thermal systems many studies have been conducted. Some of these studies suggest that heat transfer fluid could be changed with the nanofluids which can be defined as new generation heat transfer fluid. Nanofluids are suspensions of nano-sized particles such as metals, metal-oxides, and Carbon-allotropes (C), in the conventional base-fluids (water, ethylene glycol and oil). Using nanofluid enhances the efficiency and thermal performance of solar systems due to their better thermophysical and optical properties. Recently, C-based nanofluids are getting attention due to their enhanced thermal conductivity and absorptivity at even low concentrations. The results show that C-based nanofluids have a potential to use in solar energy systems: solar collectors, solar stills, photovoltaic/thermal systems.

Published
2019
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30. The Effects of Sublingual Administration of Captopril on Parameters of Exercise Test and Neurohormonal Activation in Patients With Stable Angina Pectoris

Author

Gemici K, Kazazoglu AR, Yesilbursa D, Serdar A, Ener S, Aydifinlar A, Büyükuysal L, and Çobanoglu N

Abstract

A prospective randomized, double-blind, and placebo-controlled study was designed to investigate the effects of sublingual administration of captopril on the parameters of exercise test and neurohormonal activation in patients with stable angina pectoris. A total of 31 patients (28 male, 3 female; mean age 55.4 +/- 9.4 years) took part in the study. Coronary angiography and left ventriculography were performed in all cases and the patients were classified according to the ejection fraction (EF). Following sublingual placebo or 25 mg captopril, plasma levels of renin, angiotensin II, norepinephrine, and serum aldosterone levels were measured at rest and maximal exercise. test was performed. Hormone levels were remeasured immediately after the exercise. The same procedure was repeated the next day using captopril or placebo. Sublingual captopril administration increased the time to angina, the time to 1 mm ST depression, maximal exercise capacity, maximal exercise duration and decreased maximal ST depression, maximal systolic blood pressure, and maximal double product (p < 0.001-0.01). After the maximal exercise test following captopril, the % difference of angiotensin II, aldosterone, and norepinephrine levels was found to be significant lower and the % difference of the renin level was found to be significantly higher than those of placebo (p < 0.001). The effects of sublingual captopril on exercise parameters were additionally assessed in different left ventricular systolic function subgroups. The favorable effects were more prominent in cases with left ventricular systolic dysfunction. There were no adverse effects related to sublingual captopril use. As a result, sublingual administration of captopril improved the parameters of maximal exercise test and suppressed the neurohormonal activation during exercise. We suggest that sublingual captopril may be used effectively before planned daily activities in patients with stable angina pectoris.

Published
1998
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