Nesrin Ercelen

Prof. Dr. Nesrin Ercelen

orcid

Research Focus & Metrics

Academic Career Length

22Years (2005-Present)

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

Representative Publications

View All Publications
28 July 2021 in Stem Cell Reviews and Reports
Verified
Journal Article
Closed access
PDF file
NENesrin Ercelen
Nesrin Ercelen
KPKubra Cigdem Pekkoc-Uyanik
Kubra Cigdem Pekkoc-Uyanik
NANagihan Alpaydin
Nagihan Alpaydin
GGGokay Rasit Gulay
Gokay Rasit Gulay
MSMurat Simsek
Murat Simsek

19 January 2023 in Frontiers in Medicine
Verified
Journal Article
Open access
NENesrin Ercelen
Nesrin Ercelen
NKNilgun Karasu
Nilgun Karasu
BKBulent Kahyaoglu
Bulent Kahyaoglu
OCOnder Cerezci
Onder Cerezci
RARana Cagla Akduman
Rana Cagla Akduman
CBCanan Aykut Bingol
Canan Aykut Bingol
Stem cell therapy, which has promising results in acute disorders such as stroke, supports treatment by providing rehabilitation in the chronic stage patients. In acute stroke, thrombolytic medical treatment protocols are clearly defined in neurologic emergencies, but in neurologic patients who miss the “thrombolytic treatment intervention window,” or in cases of hypoxic-ischemic encephalopathy, our hands are tied, and we are still unfortunately faced with hopeless clinical implementations. We consider mesenchymal stem cell therapy a viable option in these cases. In recent years, novel research has focused on neuro-stimulants and supportive and combined therapies for stroke. Currently, available treatment options are limited, and only certain patients are eligible for acute treatment. In the scope of our experience, five stroke patients were evaluated in this study, who was treated with a single dose of 1–2 × 106cells/kg allogenic umbilical cord-mesenchymal stem cells (UC-MSCs) with the official confirmation of the Turkish Ministry of Health Stem Cell Commission. The patients were followed up for 12 months, and clinical outcomes are recorded. NIH Stroke Scale/Scores (NIHSS) decreased significantly (p= 0.0310), and the Rivermead Assessment Scale (RMA) increased significantly (p= 0.0234) for all patients at the end of the follow-up. All the patients were followed up for 1 year within a rehabilitation program. Major clinical outcome improvements were observed in the overall clinical conditions of the UC-MSC treatment patients. We observed improvement in the patients’ upper extremity and muscle strength, spasticity, and fine motor functions. Considering recent studies in the literature together with our results, allogenic stem cell therapies are introduced as promising novel therapies in terms of their encouraging effects on physiological motor outcomes.

1 January 2006
Verified
Journal Article
Closed access
MKM Yirmibes Karaoguz
M Yirmibes Karaoguz
FBF Bal
F Bal
TYT Yakut
T Yakut
NENesrin Ercelen
Nesrin Ercelen
MEMehmet Ali Ergün
Mehmet Ali Ergün
SMS Menevse
S Menevse

1 January 2011 in Genetics and Molecular Research
Verified
Journal Article
Closed access
NENesrin Ercelen
Nesrin Ercelen
ETE. Turtar
E. Turtar
MGM. Gultomruk
M. Gultomruk
HCH. Comert
H. Comert
HCH. Coskun
H. Coskun
ANA. Nuhoglu
A. Nuhoglu
Preimplantation genetic diagnosis is a preventive approach for identifying genetic abnormalities in early stages of reproduction. We used preimplantation genetic aneuploidy screening in 230 cycles of patients with indications of advanced maternal age, recurrent implantation failure, recurrent spontaneous abortions, or severe male factor. Biopsied blastomeres from embryos with six to eight blastomeres on day 3 were fixed and fluorescence in situ hybridization was utilized on chromosomes 13, 16, 18, 21, 22, X, and Y. Among 945 morphologically normal embryos, 314 were diagnosed as chromosomally normal. Trisomy and monosomy were observed in 36% of the cases (18% each). Embryo transfer was used in 144 cycles, resulting in 41 pregnancies. Thirty-seven healthy babies were delivered, with a take-home baby rate of 24.2% and an implantation rate of 22%. We recommend preimplantation genetic aneuploidy screening as a valuable technique to select normal chromosome embryos in order to avoid multiple pregnancies due to the multiple embryo transfers that are normally necessary to ensure pregnancy in poor prognosis in vitro fertilization patients.

1 January 2005 in Reproductive BioMedicine Online
Verified
Journal Article
Closed access
NENesrin Ercelen
Nesrin Ercelen
BBB Basak
B Basak
MGM Gultomruk
M Gultomruk
MDM Diken
M Diken
RMR Mercan
R Mercan
BUB Urman
B Urman

10 June 2021 in Research Square
Verified
Preprint
Open access
PDF file
NENesrin Ercelen
Nesrin Ercelen
KPKubra Cigdem Pekkoc-Uyanik
Kubra Cigdem Pekkoc-Uyanik
NANagihan Alpaydin
Nagihan Alpaydin
GGGokay Rasit Gulay
Gokay Rasit Gulay
MSMurat Simsek
Murat Simsek
ObjectiveTreatment for COVID-19 is still urgent need for the critically ill and severe cases. UC-MSC administration has a therapeutic benefit for severe COVID-19 patients even in the recovery period. In this paper, we aimed to present our clinical experience with UC-MSC treatment in severe and critical severe COVID-19 patients.MethodsIn this study we evaluated the clinical outcome of severe/critically severe 210 COVID-19 patients treated with UC-MSCs, 1-2×106 per kilogram to 210 patients from 15/10/2020 until 25/04/2021. ResultsOut of 99 critically severe intubated patients we have observed good clinical progress/discharged from ICU in 52 (52.5%) patients. Where as 86 (77.5%) of 111 severe unintubated patients discharged from ICU. Intubated 47 (47.5%) patients and unintubated 25 (22.5%) patients pass away. Significantly higher survival was observed in patients who underwent UC-MSCs before intubation (OR=1.475, 95% CI=1.193-1.824 p0.05), while in discharged cases SaO2 parameter was statistically significant (p= 0.01). Besides, there was a statistically significant relation with intubation status, age (OR= 3.868, 95% CI=0.574-7.152 p=0.02) and weigh (OR=6.768, 95% CI=3.423-10.112 p<0.001) thus presented an elevated risk for COVID-19. The linear regression analysis confirmed that the high weight was associated with the risk of intubation in COVID-19 (p=0.001). ConclusionsAccording to our results and from recent studies, UC-MSC treatment is safe with high potential to be used as an added therapeutic treatment for severe COVID-19 patients. Our experience showed that UC-MSC therapy may restore oxygenation and downregulate cytokine storm in patients hospitalized with severe COVID-19. We advice wider randomised studies to discover the detailed therapeutic pathophysiology of the MSCs on COVID-19 patients.