Ali Ogul

Dr. Ali Ogul

orcid

Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

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

Representative Publications

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24 September 2020 in European Journal of Breast Health
Verified
Journal Article
Closed access
MBMahmut Buyuksimsek
Mahmut Buyuksimsek
AOAli Ogul
Ali Ogul
CMCem Mirili
Cem Mirili
SPSemra Paydas
Semra Paydas
Breast cancer,dNLR,MHR,NLR,PNI

18 March 2020 in Journal of Gastrointestinal Cancer
Verified
Journal Article
Closed access
PDF file
MBMahmut Buyuksimsek
Mahmut Buyuksimsek
MKMehmet Mutlu KIDI
Mehmet Mutlu KIDI
AOAli Ogul
Ali Ogul
CMCem Mirili
Cem Mirili
SPSemra Paydas
Semra Paydas

19 November 2020 in Turkish Journal of Hematology
Verified
Journal Article
Open access
MBMahmut Buyuksimsek
Mahmut Buyuksimsek
IKİrem Kolsuz
İrem Kolsuz
AYAbdullah Evren Yetişir
Abdullah Evren Yetişir
MTMERT TOHUMCUOĞLU
MERT TOHUMCUOĞLU
AOAli Ogul
Ali Ogul
IGIsa Burak Guney
Isa Burak Guney
Objective: Bone marrow infiltration (BMI) affects the stage diagnosis, and treatment of lymphoma. We aimed to evaluate the performance of bone marrow biopsy (BMB) and positron emission tomography-computed tomography (PET/CT) in detecting BMI in lymphoma patients. Materials and Methods: A total of 269 non-Hodgkin's lymphoma (NHL) and 110 Hodgkin's lymphoma (HL) patients were evaluated retrospectively. Sensitivity, negative predictive value (NPV), and accuracy were calculated for PET/CT and BMB in detecting BMI. Results: Sensitivity, NPV, and accuracy for PET/CT in detecting BMI in NHL cases were 65%, 78%, and 84.4%, respectively, while they were 55%, 73.4%, and 79.9% for BMB. PET/CT performance for diffuse large B-cell lymphoma and follicular lymphoma was better than that of BMB, whereas the performance of BMB was better for mantle-cell lymphoma, Burkitt's lymphoma, and primary mediastinal B-cell lymphoma. Sensitivity, NPV, and accuracy for PET/CT in HL cases were 91.3%, 97.75%, and 98.18%, respectively, while they were 56.52%, 89.69%, and 90.91% for BMB. Due to BMB, 43 (15.9%) patients in the NHL group and 2 (1.8%) patients in the HL group were protected from downstaging. Conclusion: Although their results vary according to NHL subtypes, PET/CT and BMB are complementary methods in determining BMI. In HL, PET/CT is an important diagnostic tool for detecting BMI, and BMB is not necessary in a significant proportion of cases.

23 July 2020 in Journal of Ultrasound
Verified
Journal Article
Open access
PDF file
MBMahmut Buyuksimsek
Mahmut Buyuksimsek
EGErdinc Gulumsek
Erdinc Gulumsek
DDDerya Demirtas
Derya Demirtas
YIYahya Kemal Icen
Yahya Kemal Icen
Hilmi Erdem SumbulHilmi Erdem Sumbul
Hilmi Erdem Sumbul
MKMevlut Koc
Mevlut Koc
Background Primary hyperparathyroidism (PHP) is a rare cause of secondary hypertension (HT), but in patients with PHP, HT is very common and 20–80% of patients have HT. The aim of this study was to evaluate the change in carotid–femoral pulse wave velocity (CF-PWV) in hypertensive patients with PHP, and was to determine the clinical, laboratory, and echocardiographic parameters associated with CF-PWV. Methods The study included 83 newly diagnosed hypertensive patients with PHP and 83 patients with newly diagnosed essential HT without PHP. All patients underwent echocardiography and CF-PWV measurements. Results In patients with PHP, blood urea nitrogen, hs-CRP, uric acid, serum and urine calcium, parathyroid hormone level, CF-PWV value, LV wall thickness, LVMI, aortic and left atrium (LA) diameter, and presence of LVH and CF-PWV > 10 m/s were higher, and serum phosphorus levels were lower. Serum calcium, LA diameter, and LVMI values were closely correlated with CF-PWV. In the ROC analysis, the AUROC was calculated as 0.825 for calcium level to determine the patients with increased CF-PWV. When the serum calcium value was taken as 10 mg/dL, it was determined with CF-PWV > 10 m/s were 79.5% sensitivity and 78.2% specificity. Conclusion CF-PWV significantly increases in newly diagnosed hypertensive patients with PHP and significantly related to serum calcium level. To protect against target organ damage, high serum calcium levels should be monitored as well as blood pressure in hypertensive patients with PHP.

3 June 2020 in Journal of Gastrointestinal Cancer
Verified
Journal Article
Closed access
PDF file
AOAli Ogul
Ali Ogul
MKMehmet Mutlu KIDI
Mehmet Mutlu KIDI
MBMahmut Buyuksimsek
Mahmut Buyuksimsek

1 January 2023 in Revista da Associação Médica Brasileira
Verified
Journal Article
Open access
AYAbdullah Evren Yetişir
Abdullah Evren Yetişir
SPSemra Paydas
Semra Paydas
MBMahmut Buyuksimsek
Mahmut Buyuksimsek
AOAli Ogul
Ali Ogul
ÖYÖzge Yaprak
Özge Yaprak
MKMehmet Mutlu KIDI
Mehmet Mutlu KIDI
Breast cancer is the most common malignancy in women. In the treatment of these patients, pathological complete response is defined as the absence of invasive cancer in breast or lymph node tissue after the completion of neoadjuvant chemotherapy. In this study, we aimed to investigate the relationship of enhancer of zeste homolog 2 and mucin 1 expressions with pathological complete response in patients with breast cancer receiving neoadjuvant chemotherapy. A total of 151 patients were included in the study. Enhancer of zeste homolog 2 and mucin 1 expressions were evaluated in the biopsy materials pre-neoadjuvant chemotherapy and post-neoadjuvant chemotherapy surgical material, and their relationship with pathological complete response was investigated. The pathological complete response rates were significantly higher among the hormone receptor-negative patients, those with a high Ki-67 score, and patients with HER2-positive. Higher pathological complete response rates were obtained from patients with enhancer of zeste homolog 2 expression positivity pre-neoadjuvant chemotherapy. In addition, after neoadjuvant chemotherapy, enhancer of zeste homolog 2 expression was found to be completely negative in materials with pathological complete response; that is, in breast tissues considered to be tumor-free. While there was no significant relationship between mucin 1 expression and pathological complete response pre-neoadjuvant chemotherapy, mucin 1 expression was determined to significantly differ between the tissues with and without pathological complete response among the surgical materials examined. In our study investigating the relationship between enhancer of zeste homolog 2 and mucin 1 expression and pathological complete response in patients who received neoadjuvant chemotherapy, we found that enhancer of zeste homolog 2 expression could be used as a predictive marker for pathological complete response. However, mucin 1 expression was not associated with pathological complete response.