SİNAN KOCA

Dr. SİNAN KOCA

orcid

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

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

Representative Publications

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18 August 2022 in Heliyon
Verified
Journal Article
Open access
SKSİNAN KOCA
SİNAN KOCA
EKEsra Koca
Esra Koca
İÖİlker Nihat Ökten
İlker Nihat Ökten
FOFatma Fc. Orengül
Fatma Fc. Orengül
AOAkın Oztürk
Akın Oztürk
MGMahmut Gümüş
Mahmut Gümüş
Although cancer patients have a high risk of exposing COVID-19 and developing severe complications, they have to receive active treatment. We aimed to determine the psychological conditions of cancer patients and shed light on the establishment of early psychological intervention and intervention policies by making specific recommendations. We consecutively evaluated 385 cancer patients under treatment. Post-traumatic stress disorder (PTSD) symptoms, depression, anxiety, stress, and associated sociodemographic/clinical characteristics were investigated. In addition, we applied depression-anxiety-stress-scale-21 (DASS-21) for the mental states of patients and Impact of Event-Scale-Revised (IES-R) for the psychological effects of Covid-19. The mean age was 58 (18–88). 47.2% were psychologically distressful per DASS-21, and 39.3% were traumatic per IES-R scores. 71.9% stated the risk of getting COVID-19 was high since they had cancer, and 82% stated serious complications would develop if they had COVID-19 infection. Patients diagnosed for more than one year were more stressed, anxious, and depressive (p–value = 0.001,0.003,0.049, respectively). Singles were more stressed, depressed, and traumatized than couples (p-value = 0.001, 0.011, 0.001). In multivariate analysis, a significant correlation with being under psychiatric treatment before the pandemic was found for depression (OR: 3.743, 95 %CI: 1.790–7.827) anxiety (OR: 3.776–95 %CI: 1.945–7.332) and stress levels (OR: 4.129, 95 %CI: 1.728–9.866). Having relatives who died or received treatment for COVID-19(OR: 0.515,0.296–0.895) and being unmarried (OR: 2.445–95% CI: 1.260–4.747) predicts PTSD development. When the psychological effects of the COVID-19 pandemic are manifesting strongly, cancer patients' anxiety and exposure levels are high. It is of great importance that clinicians understand needs, recognize psychological distress, and direct them to relevant departments for supportive care.

16 May 2020 in Journal of Oncology Pharmacy Practice
Verified
Journal Article
Closed access
PDF file
SKSİNAN KOCA
SİNAN KOCA
MBMehmet Beşiroğlu
Mehmet Beşiroğlu
MÖMelike Özçelik
Melike Özçelik
MKMustafa Karaca
Mustafa Karaca
MBMehmet Bilici
Mehmet Bilici
FDFaysal Dane
Faysal Dane
Purpose: Soft tissue sarcomas are associated with a poor prognosis and low chemotherapeutic efficiency. Pazopanib is an orally available multi-tyrosine kinase inhibitor that was explored in patients with non-adipocytic advanced soft tissue sarcomas. The aim of this retrospective study was to evaluate the real life data of single-agent pazopanib efficacy and safety for soft tissue sarcomas in the Turkish population. Materials and methods: We evaluated a total of 103 patients (41 males, 62 females) who received pazopanib for advanced non-adipocytic soft tissue sarcomas diagnosis in eight centers of Turkey, retrospectively. The pazopanib dose was 800 mg once daily. Progression-free survival, overall survival, and adverse events were analyzed. Results: The median age was 50 years (range, 38–58). Majority of the patients had leimyosarcoma (41%). Median progression-free survival was 4.3 months, and the median overall survival was 10.1 months. The main common toxicities were fatigue, anorexia, weight loss, nausea, hypertension, and grade ≥3 toxicities were fatigue, anorexia, weight loss, and liver disorder. Conclusion: Pazopanib is an efficient and tolerable agent and is well tolerated in good performance status patients with relapsed, advanced non-adipocytic soft tissue sarcomas.

1 January 2024 in International Journal of Breast Cancer
Verified
Journal Article
Open access
IEIrem Peker Eyuboglu
Irem Peker Eyuboglu
SKSİNAN KOCA
SİNAN KOCA
BÇBetül Çelik
Betül Çelik
GAGokce Gullu Amuran
Gokce Gullu Amuran
MUM. Ümit Uğurlu
M. Ümit Uğurlu
MAMustafa Akkiprik
Mustafa Akkiprik
Introduction: Cancer is a genetic disease that affects people worldwide, and breast cancer is the most common cancer in women. Studies have been conducted on molecular parameters to predict tumor behavior and develop therapeutic strategies. Telomeres, which are at the end of chromosomes, have been studied for their relationship with breast cancer, but more research is needed to understand their role in the disease. Circulating‐free DNA (cfDNA) is DNA that is free in the bloodstream and is considered a promising target for early cancer detection, treatment response monitoring, and prognosis assessment. This study is aimed at comparing cfDNA telomere length of breast cancer patients and healthy individuals and analyzing the impact of neoadjuvant chemotherapy on telomere length in cfDNA.Materials and Methods: Blood samples were collected from 33 breast cancer patients undergoing neoadjuvant chemotherapy before and after treatment. The quantitative PCR method is used to measure the average telomere lengths.Results: This study found that the telomere length of cfDNA in breast cancer patients before and after treatment is significantly shorter than in the control group. Neoadjuvant chemotherapy is found to shorten the cfDNA telomere length, especially in the treatment‐responsive group.Conclusion: Our study suggests that telomere length in cfDNA may be a useful biomarker for predicting therapy response and possible reoccurrence of the disease in breast cancer patients.

1 January 2023 in Eurasian Journal of Medical Investigation
Verified
Journal Article
Closed access
PDF file
SKSİNAN KOCA
SİNAN KOCA
NBNalan Akgul Babacan
Nalan Akgul Babacan
IOIlker Nihat Okten
Ilker Nihat Okten
AKAk
Ak
OAOzkan Ala
Ozkan Ala
PYPerran Fulden Yumuk
Perran Fulden Yumuk
Ejmi Eurasian Journal of Medical Investigation

14 March 2022 in Namık Kemal Tıp Dergisi
Verified
Journal Article
Open access
TTTuğba AKIN TELLİ
Tuğba AKIN TELLİ
NBNalan Akgül Babacan
Nalan Akgül Babacan
ÖAÖzkan Alan
Özkan Alan
MÖMehmet Akif Öztürk
Mehmet Akif Öztürk
RHRahib Hasanov
Rahib Hasanov
PYPerran Fulden Yumuk
Perran Fulden Yumuk

1 January 2026 in Eurasian Journal of Medical Investigation
Verified
Journal Article
Closed access
PDF file
TBTuba Baydaş
Tuba Baydaş
İÖİlker Nihat Ökten
İlker Nihat Ökten
SASamet Ada
Samet Ada
SKSİNAN KOCA
SİNAN KOCA
Ejmi Eurasian Journal of Medical Investigation