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| 1 | Review of magnesium-based biomaterials and their applications显示文摘In biomedical applications,the conventionally used metallic materials,including stainless steel,Co-based alloys and Ti alloys,often times exhibit unsatisfactory results such as stress shielding and metal ion releases.Secondary surgical operation(s)usually become inevitable to prevent long term exposure of body with the toxic implant contents.The metallic biomaterials are being revolutionized with the development of biodegradable materials including several metals,alloys,and metallic glasses.As such,the nature of metallic biomaterials are transformed from the bioinert to bioactive and multi-biofunctional(anti-bacterial,anti-proliferation,anti-cancer,etc.).Magnesium-based biomaterials are candidates to be used as new generation biodegradable metals.Magnesium(Mg)can dissolve in body fluid that means the implanted Mg can degrade during healing process,and if the degradation is controlled it would leave no debris after the completion of healing.Hence,the need for secondary surgical operation(s)for the implant removal could be eliminated.Besides its biocompatibility,the inherent mechanical properties of Mg are very similar to those of human bone.Researchers have been working on synthesis and characterization of Mg-based biomaterials with a variety of composition in order to control the degradation rate of Mg since uncontrolled degradation could result in loss of mechanical integrity,metal contamination in the body and intolerable hydrogen evolution by tissue.It was observed that the applied methods of synthesis and the choice of components affect the characteristics and performance of the Mg-based biomaterials.Researchers have synthesized many Mg-based materials through several synthesis routes and investigated their mechanical properties,biocompatibility and degradation behavior through in vitro,in vivo and in silico studies.This paper is a comprehensive review that compiles,analyses and critically discusses the recent literature on the important aspects of Mg-based biomaterials. | Nurettin Sezer Zafer Evis Said Murat Kayhan Aydin Tahmasebifar Muammer Koça | 2018 | Journal of Magnesium and Alloys2018，6，1： | 38 |
| 2 | Gastrointestinal bezoars: A retrospective analysis of 34 cases显示文摘AIM: Bezoars (BZ) are the most common foreign bodies of gastrointestinal tract. Clinical manifestations vary depending on the location of BZ from no symptoms to acute abdominal syndrome. When located in small bowel, they frequently cause small bowel obstruction (SBO). We aimed to present our experience by reviewing literature.METHODS: Thirty-four patients with gastrointestinal BZ were presented. The data were collected from hospital records and analyzed retrospectively. Morbidity and mortality rates were statistically analyzed between the subgroups according to SBO and endoscopic or surgical treatment modalities.RESULTS: The 34 patients had phytobezoars (PBZ). Two patients with mental retardation and trichotillomania had trichobezoars (TBZ). More than half of them (55.88%) had previous gastric surgery. Also most of them had small bowel bezoars resulting in obstruction. Surgical and endoscopic morbidity rates were 32.14% and 14.28% respectively.The total morbidity rate of this study was 29.41%. Four patients in surgically treated group died. There was no death in endoscopically treated group. The total and surgical mortality rates were 11.76% and 14.28% respectively. The differences in morbidity and mortality rates between the subgroups were not statistically significant.CONCLUSION: BZ are commonly seen in stomach and small intestine. SBO is the most common complication.When uncomplicated, endoscopic or surgical removal can be applied easily. | Kenan Erzurumlu Zafer Malazgirt Ahmet Bektas Adem Dervisoglu Cafer Polat Gokhan Senyurek Ibrahim Yetim Kayhan Ozkan | 2005 | World Journal of Gastroenterology2005，11，12： | 33 |
| 3 | Dynamic contrast-enhanced MR imaging findings of bone metastasis in patients with prostate cancer显示文摘AIM:To evaluate the dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) findings of bone metastasis in prostate cancer patients.METHODS:Sixteen men with a diagnosis of metastatic prostate cancer to bones were examined with DCE-MRI at 1.5 Tesla.The mean contrast agent concentration vs time curves for bone metastasis and normal bone were calculated and K trans and ve values were estimated and compared.RESULTS:An early significant enhancement (wash-out:n=6,plateau:n=8 and persistent:n=2) was detected in all bone metastases (n=16).Bone metastasis from prostate cancer showed significant enhancementand high K trans and ve values compared to normal bone which does not enhance in the elderly population.The mean K trans was 0.101/mmiinn and 0.0051/mmiinn (P < 0.001),the mean ve was 0.141 and 0.0038 (P < 0.001),for bone metastases and normal bone,respectively. | Arda Kayhan Cheng Yang Fatma Nur Soylu Hatice Lakadamyal Ila Sethi Gregory Karczmar Walter Stadler Aytekin Oto | 2011 | World Journal of Radiology2011，3，10： | 5 |
| 4 | Multi-parametric MR imaging of transition zone prostate cancer: Imaging features, detection and staging显示文摘Magnetic resonance (MR) imaging has been increasingly used in the evaluation of prostate cancer. As studies have suggested that the majority of cancers arise from the peripheral zone (PZ), MR imaging has focused on the PZ of the prostate gland thus far. However, a considerable number of cancers (up to 30%) originate in the transition zone (TZ), substantially contributing to morbidity and mortality. Therefore, research is needed on the TZ of the prostate gland. Recently, MR imaging and advanced MR techniques have been gaining acceptance in evaluation of the TZ. In this article, the MR imaging features of TZ prostate cancers, the role of MR imaging in TZ cancer detection and staging, and recent advanced MR techniques will be discussed in light of the literature. | Arda Kayhan Jacob Oommen Aytekin Oto | 2010 | World Journal of Radiology2010，2，5： | 3 |
| 5 | 非混相CO2驱提高重油采收率 | Kayhan Issever 莫增敏 石家雄 胡淑娟 | 2000 | 石油石化节能2000，，1： | 3 |
| 6 | Control of Sudden Death of Entanglement by Transient Effects显示文摘我们面对短暂效果调查在一个孤立的原子和一个 JaynesCummings 原子之间的纠纷的性质。这些效果由于其明确的时间依赖为案例被考虑的联合的原子地的调整线性扫。我们证明纠纷的突然的死亡能被短暂效果控制。这些效果能及时压制纠纷的突然的死亡。 | Hünkar Kayhan | 2011 | Communications in Theoretical Physics2011，56，9： | 3 |
| 7 | Magnetic resonance enterography in Crohn’s disease: Standard and advanced techniques显示文摘Crohn's disease (CD) is a chronic autoimmune disorder that affects mainly young people. The clinical management is based on the Crohn's Disease Activity Index and especially on biologic parameters with or without additional endoscopic and imaging procedures, such as barium and computed tomography examinations. Recently, magnetic resonance (MR) imaging has been a promising diagnostic radiologic technique with lack of ionizing radiation, enabling superior tissue contrast resolution due to new pulse-sequence developments. Therefore, MR enterography has the potential to become the modality of choice for imaging the small bowel in CD patients. | Arda Kayhan Jacob Oommen Farid Dahi Aytekin Oto | 2010 | World Journal of Radiology2010，2，4： | 3 |
| 8 | 比较雷珠单抗和贝伐珠单抗对新生血管AMD的疗效(英文)显示文摘目的:比较玻璃体内注射雷珠单抗与贝伐珠单抗对年龄相关性黄斑变性(age-related macular degeneration,AMD)的疗效,治疗方案必要时采用。方法:回顾性分析63例63眼(雷珠单抗治疗组35眼,贝伐珠单抗治疗组28眼)新确诊新生血管年龄相关性黄斑变性患者的资料。治疗12mo后随访,分析比较两组患者的最佳矫正视力(BCVA)和黄斑中心凹厚度(CFT)。采用双尾t检验和单因素方差分析比较两组最佳矫正视力和黄斑中心凹厚度的变化。结果:雷珠单抗治疗组35眼和贝伐珠单抗治疗组28眼均完成12mo随访,并记录数据。雷珠单抗治疗组最佳矫正视力均值增加0.1logMAR;相反,贝伐珠单抗治疗组最佳矫正视力均值下降0.06logMAR(P=0.01)。雷珠单抗治疗组13眼(37%)和贝伐珠单抗治疗组4眼(14%)最佳矫正视力至少增加0.3logMAR。雷珠单抗治疗组平均黄斑中心凹厚度减少41.6μm,贝伐珠单抗治疗组减少8.1μm(P=0.003)。两组平均注射次数是4.46次和4.11次(P>0.05)。结论:玻璃体内注射雷珠单抗组在视力和消水肿方面疗效优于贝伐珠单抗组。但是,两种药的疗效和安全性还需要随机的长期临床试验来验证。 | Huseyin Serdarogullari Muzaffer Ozturk Umur Kayhan Selim Bolukbasi Burak Erden Mustafa Elcioglu | 2014 | 国际眼科杂志2014，14，5： | 2 |
| 9 | Entropy Correlations and Entanglement of a Superconducting Charge Qubit in a Resonant Cavity in the Presence of Noise显示文摘We study the dynamics of the entropy correlations and entanglement in a system of interaction of a superconducting charge qubit with a single-mode resonant cavity subject to noise considered as two-state random phase telegraph noise. We show that although the noise has an apparent suppressing effect on the evolution of the entropies of the qubit and the field and also on the entanglement in the system, the entropy exchange between the qubit and the field is independent of it during the time evolution of the system. | Hünkar Kayhan | 2011 | Communications in Theoretical Physics2011，56，7： | 2 |
| 10 | The comparison of the effects of standard 20 mg atorvastatin daily And 20 mg atorvastain every other day on serum LDL_cholesterol and high sensitive C_ reative protein levels 显示文摘 | Keles T Bayram NA kayhan T | 2008 | Anadolu Kardiyol Derg2008，8，： | 1 |
| 11 | Syringe pumps take too long to give occlusion alarm显示文摘 | Donmez A Araz C Kayhan Z | 2005 | Paediatr Anaesth2005，15，4： | 1 |
| 12 | Examining the Effect of Market orientation on Innovativeness 显示文摘 | Kayhan Tajeddini Myfanwy Trueman Gretchen Larsen | 2006 | Journal of Marketing Management2006，22，： | 1 |
| 13 | Neural network based switching control of AC-AC converter with DC-AC inverter for voltage sags, harmonics and EMI reduction using hybrid filter topology显示文摘 | Kayhan Gulez | 2008 | Simulation Modelling Practice and Theory2008，16，6： | 1 |
| 14 | Significance of epidermoid formations in the middle ear in fetuses and children 显示文摘 | Kayhan FT Mutlu C Schachern PA | 1997 | Arch Otolaryngol Head Neck Surg1997，123，12： | 1 |
| 15 | Glatiramer acetate (Copaxone) regulates nitric oxide and related cytokine secretion in experimental autoimmune encephalomyelitis显示文摘 | Kayhan B Aharoni R Arnon R | 2003 | Immunol Lett2003，88，3： | 1 |
| 16 | Transsternal transpericardial approach for the repair of bronchopleural fistula with empyema 显示文摘 | Topcuogtu MS Kayhan C Ulus T | 2000 | Ann Thorac Surg2000，69，： | 1 |
| 17 | Toronto facial grading system显示文摘 | Zurakowski D Rauch SD | 2000 | Otolaryngol Head Neck Surg2000，121，： | 1 |
| 18 | Glatiramer acetate (Copaxone) regulates nitric oxide and related cytokine secretion in experimental autoimmune encephalomyelitis 显示文摘 | Kayhan B Aharoni R Arnon R | 2003 | hnmunol Lett2003，88，3： | 1 |
| 19 | MR imaging of ectopic pregnancy with an emphasis on unusual implantation sites 显示文摘 | Mert Koroglu Arda Kayhan | 2013 | Jpn J Radiol2013，31，： | 1 |
| 20 | Evaluation of two new white silicone thermal control paints under atomic oxygen 显示文摘 | Kayhan N Razavi R S Choopani S | 2012 | Progress in Organic Coatings2012，74，3： | 1 |
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