Nursen Keles

Nursen Keles


Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
28 September 2015 in Journal of Diabetes and its Complications
Verified
Journal Article
Closed access
PDF file
NKNursen Keles
Nursen Keles
BDBurcu Dogan
Burcu Dogan
MKMacit Kalcik
Macit Kalcik
MCMustafa Caliskan
Mustafa Caliskan
NKNecibe Nur Keles
Necibe Nur Keles
AOAytekin Oguz
Aytekin Oguz

1 January 2016 in Northern Clinics of Istanbul
Verified
Journal Article
Open access
NKNursen Keles
Nursen Keles
The term chronic inflammatory disease (CID) refers to a category of inflammatory diseases that includes Ankylosing spondylitis (AS) and familial Mediterranean fever (FMF). The incidence of adverse cardiovascular events is greater among patients with CID, though they may not have conventional atherosclerotic risk factors. Endothelial dysfunction is one of the underlying fundamental mechanisms that trigger development of atherosclerotic alterations in arteries, and flow-mediated dilatation (FMD) is a noninvasive method to determine endothelial dysfunction. Recent studies have shown a relationship between high triglyceride high-density lipoprotein cholesterol (TG/HDL-C) ratio and coronary atherosclerosis. Many studies have demonstrated that patients with CID have lower FMD values compared to healthy population, indicating endothelial dysfunction. However TG/HDL ratio and its relationship to FMD in patients with CID has not been investigated. The present study investigated whether TG/HDL ratio in CID patients differs from that of healthy population, and its relationship to FMD in patients with CID. A total of 58 patients with CID and a group of 58 healthy volunteer individuals were enrolled in the study. FMD measurements were taken with high resolution ultrasound (US), and TG/HDL ratios were calculated. Patients with CID had significantly higher TG/HDL-C ratio (2.5 [2.2-2.8] vs 2.3 [2.1-2.5]; p=0.03) and lower FMD values (5.2 [4.2-6.3] vs 6.7 [6.3-9.7]; p<0.001), compared to healthy group, and a negative correlation was found between FMD levels and TG/HDL ratio of the study population. Higher TG/HDL ratio and lower FMD values found in CID patients may reflect increased atherosclerotic risk.

1 November 2016 in International Journal of Cardiology
Verified
Journal Article
Closed access
ZCZuhal Caliskan
Zuhal Caliskan
NKNursen Keles
Nursen Keles
HGHuseyin Savas Gokturk
Huseyin Savas Gokturk
KOKamil Ozdil
Kamil Ozdil
FAFeyza Aksu
Feyza Aksu
MCMustafa Caliskan
Mustafa Caliskan

27 May 2016 in Atherosclerosis
Verified
Journal Article
Closed access
PDF file
MBMustafa Bulut
Mustafa Bulut
NKNursen Keles
Nursen Keles
ZCZuhal Caliskan
Zuhal Caliskan
OKOsman Kostek
Osman Kostek
FAFeyza Aksu
Feyza Aksu
MCMustafa Caliskan
Mustafa Caliskan

16 June 2023 in Medicina
Verified
Journal Article
Open access
PDF file
MKMesut Karataş
Mesut Karataş
NKNursen Keles
Nursen Keles
KPKemal Emrecan Parsova
Kemal Emrecan Parsova
HCHatice Ozge Ciftci
Hatice Ozge Ciftci
SOSercin Ozkok
Sercin Ozkok
NYNurettin Yiyit
Nurettin Yiyit
Background and Objectives: We aimed to assess the effect of AST/ALT ratio on echocardiographic and cardiac magnetic resonance imaging (CMRI) parameters after COVID-19 patients recover. Materials and Methods: 87 patients with COVID-19 were included in the study. The patients were hospitalized with COVID-19 pneumonia, but the patients did not need intensive care unit follow-up or non-invasive mechanical ventilation support. After a discharge and two weeks following the positive swab test result, patients were considered eligible if they had any symptoms. Transthoracic echocardiography (TTE) was performed within 24 h prior to CMRI. The median value of AST/ALT ratio was found, and the study population was divided into two subgroups based on the median AST/ALT ratio value. The clinical features, blood test, TTE and CMRI results were compared between subgroups. Results: C-reactive protein, D-dimer and fibrinogen were found to be significantly higher in patients with high AST/ALT ratio. LVEF, TAPSE, S’, and FAC were significantly lower in patients with high AST/ALT ratio. LV-GLS were significantly lower in patients with high AST/ALT ratio. In CMRI, native T1 mapping signal, native T2 mapping signal and extracellular volume raised significantly in patients with high AST/ALT ratio. Right ventricle stroke volume and right ventricle ejection fraction were significantly lower in patients with high AST/ALT ratio, but right ventricle end systolic volume was significantly higher in patients with high AST/ALT ratio. Conclusion: High AST/ALT ratio is related to impaired right ventricular function parameters with CMRI and echocardiography after recovery from acute COVID-19. Assessment of AST/ALT ratio at hospital admission may be used to assess the risk of cardiac involvement in COVID-19 disease, and these patients may require closer follow-up during and after the course of COVID-19.

20 January 2016 in Echocardiography
Verified
Journal Article
Closed access
PDF file
NKNursen Keles
Nursen Keles
MCMustafa Caliskan
Mustafa Caliskan
BDBurcu Dogan
Burcu Dogan
FAFeyza Aksu
Feyza Aksu
SBSerkan Bulur
Serkan Bulur
AOAytekin Oguz
Aytekin Oguz