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Permanent URI for this collectionhttps://hdl.handle.net/11443/932

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Author: search.filters.author.Calikusu, ZuleyhaSubject: search.filters.subject.Breast cancer

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    Investigation of effects of PALB2 genetic variations on breast cancer predisposition
    (CUKUROVA UNIV, FAC MEDICINE, 2020-01-01) Bilen, Muge Yuksel; Berkoz, Mehmet; Yalin, Ali Erdinc; Calikusu, Zuleyha; Eroglu, Pelin; Comelekoglu, Ulku; Yalin, Serap
    Purpose: In this study, the effects of three different single nucleotide polymorphisms (rs249954, rs249935, and rs16940342) of partner and localizer of breast cancer gene 2 (PALB2) on breast cancer predisposition have been investigated. Materials and Methods: For this purpose, 150 patients diagnosed to have breast cancer and 150 healthy individuals have been included. By using real time polymerase chain reaction (PCR) method isolated deoxyribonucleic acid (DNA) from each case has been investigated for the PALB2 genetic variations. Results: The distribution of homozygote wild type (AA) and heterozygote (AG) genotypes at rs16940342 polymorphism has been observed to be 44.7\% and 55.3\% in breast cancer group and 32.7\% and 67.3\% in control group. The homozygote polymorphic (GG) genotype was not observed in both groups. The discrepancy between the groups in terms of genotype distribution regarding rs16940342 polymorphism has been found statistically significant. However, there was no significant difference in the frequencies of rs249954 and rs249935 polymorphisms comparing both groups. Conclusion: These results show that rs16940342 polymorphism may be an important determinant in terms of breast cancer predisposition in the Turkish population.
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    Correlation between 18F-FDG Positron-Emission Tomography 18F-FDG Uptake Levels at Diagnosis and Histopathologic and Immunohistochemical Factors in Patients with Breast Cancer
    (AVES, 2016-01-01) Ugurluer, Gamze; Yavuz, Sinan; Calikusu, Zuleyha; Seyrek, Ertugrul; Kibar, Mustafa; Serin, Meltem; Ersoz, Canan; Demircan, Orhan
    Objective: In this study, we aimed to determine the correlation between pretreatment-staging 18F-FDG total body positron-emission tomography/computed tomography (PET/CT) maximum standardized uptake value (SUVmax) levels and histopathologic and immunohistochemical predictive and prognostic factors in patients with breast cancer. Materials and Methods: One hundred thirty-nine women with breast cancer who were treated between 2009 and 2015 at our hospital and who had pretreatment-staging PET/CT were included in the study. SUVmax levels and histopathologic and immunohistochemical results were compared. Results: The median age was 48 years (range, 29-79 years). The mean tumor diameter was 33.4 mm (range, 7-120 mm). The histology was invasive ductal carcinoma in 80.6\% of the patients. In the univariate analysis, SUVmax levels were significantly higher in patients with invasive ductal carcinoma