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    4-phenyl butyric acid improves hepatic ischemia/reperfusion and affects gene expression of ABC transporter Abcc5 in rats
    (Medicinska Naklada, 2023) Guven, Bulent Baris; Tanoglu, Alpaslan; Ozcelik, Fatih; Tanoglu, Esra Guzel; Terzi, Neslihan Kaya
    Aim To assess the effects of 4-phenyl butyric acid (PBA) on oxidative stress, inflammation, liver histology, endoplasmic (ER) reticulum stress, and the expression levels of ATP -binding cassette transporter family members in a hepatic ischemia-reper fusion (IR) model.Methods Thirty-five rats were randomly divided into five groups: sham, IR, IR + 100 mg kg-1 PBA, IR + 200 mg kg-1 PBA, and IR + placebo. After sacrifice, we assessed serum biochemical variables, myeloperoxidase (MPO), malondialdehyde (MDA), total antioxidant status (TAS), and total oxidant status (TOS). The expression levels of Abcc (2 and 5), Abcg2, Abcf2, Ire1-alpha, and Perk genes were measured with a quantitative real-time polymerase chain reaction.Results Serum biochemical variables, MPO, MDA, TAS, and TOS levels of the PBA groups (especially in the low dose group) were lower than in the IR and placebo group (P < 0.05). Histological tissue damage in the IR group was more severe than in the PBA groups. Ire1-alpha and Perk expression levels were significantly lower in the PBA groups than the IR group (P < 0.001). Abcc (2 and 5) and Abcg2 expression levels were significantly lower in the IR group than in the sham and PBA groups (P < 0.001, P < 0.035, and P < 0.009, respectively).Conclusions The use of PBA significantly positively affected IR injury, which makes PBA a candidate treatment to reduce liver IR.
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    Assessment of Cervicovaginal Smear and HPV DNA Co-Test for Cervical Cancer Screening: Implications for Diagnosis and Follow-Up Strategies
    (Mdpi, 2024) Terzi, Neslihan Kaya; Yulek, Ozden
    Objective: Cervical cancer is a major cause of cancer-related mortality, necessitating effective screening and diagnostic methods. This study aimed to assess the performance of cervicovaginal smear (CVS) and human papillomavirus (HPV)-DNA co-test. Study design: The pathology results of 225 female patients who underwent HPV-DNA testing with CVS between 2014 and 2022 and were subsequently diagnosed by colposcopic cervical biopsy or second CVS were retrospectively analyzed. Results: CVS samples showed atypical squamous cells of undetermined significance (ASCUS), low-grade squamous intraepithelial lesion (LSIL), high-grade squamous intraepithelial lesion (HSIL), and cervical cancer. Concordance between the first and second diagnoses demonstrated moderate agreement for LSIL. ASCUS cases exhibited a significant correlation with HPV-DNA positivity and higher-grade cervical lesions. In biopsy, sensitivity and specificity for CIN1/LSIL were 87.5% and 53.3, respectively, while for CIN2-3/HSIL, they were 83.87% and 58.49%. HPV testing showed significant correlation with histopathologic results. In women over 40 years, more intraepithelial lesions were diagnosed compared to younger women (p < 0.005). The conventional smear technique proved reliable in detecting high-grade lesions. Conclusions: Despite the limitations of our study, our results emphasize the value of HPV-DNA testing to avoid unnecessary interventions and to establish appropriate follow-up strategies.
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    Decoding Early Mycosis Fungoides: Histopathologic and Immunohistochemical Clues
    (Springernature, 2024) Terzi, Neslihan Kaya
    Introduction: Primary cutaneous lymphomas, notably mycosis fungoides (MF), present diagnostic challenges in recognizing early mycosis fungoides (eMF) due to their diverse clinical and histopathologic manifestations. The aim of our study was to use adjunctive histopathologic and immunohistochemical methods in eMF cases to make an early diagnosis and to facilitate differentiation from other dermatoses. Methods: This retrospective study analyzed 35 cases of eMF diagnosed at a single center. Demographic and clinicopathologic data were collected, and histopathologic features were assessed. Comparative analyses were conducted with conditions mimicking eMF, including large plaque parapsoriasis (LPP), psoriasis, and chronic dermatitis. Immunohistochemistry for T -cell markers (CD3, CD4, CD8, CD2, CD7) was performed. Results: With the scoring we applied in our study, a sensitivity of 91.43% (95% CI; 76.94% to 98.20%) and specificity of 85.71% (95% CI; 69.74% to 95.19%) for distinguishing eMF from LPP. Epidermotropism emerged as a crucial histopathologic marker, with a notable absence in most cases of cutaneous dermatitis (81.6% and 80% for CD and psoriasis, respectively) (P < 0.001). Immunohistochemistry revealed a T -helper phenotype (CD4+/CD8-) in the majority of eMF cases (78.1%), while CD4+/CD8+ and CD8+/CD4- patterns were less common (28.5% and 8.5%, respectively). Conclusion: This study underscores the complexities in distinguishing eMF from inflammatory skin diseases, advocating for a comprehensive diagnostic approach.
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    HISTOPATHOLOGICAL PARAMETERS AND INTRATUMORAL LYMPHOCYTES: CORRELATION WITH SURVIVAL OUTCOMES IN TRIPLE-NEGATIVE BREAST CANCER - A COMPREHENSIVE RETROSPECTIVE ANALYSIS
    (2024) Terzi, Neslihan Kaya
    OBJECTIVE: Triple-negative breast cancer (TNBC) is a subtype characterized by aggressive tumor behavior and limited treatment options. This study aimed to investigate the relationship among age, pathological stage, proliferative index, presence of tumor infiltrating lymphocytes (TILs), and survival outcomes in TNBC. MATERIAL AND METHODS: Tumoral slides and blocks of 31 patients with triple negative breast cancer were retrieved from the pathology archive and retrospectively re-evaluated. The relationship among patient age, histopathological subtype of the tumor, tumor grade, lymph node grade, Ki-67 proliferation index and survival was evaluated. TILs were scored as mild, moderate and severe and the relationship with survival was evaluated. RESULTS: Regarding age and tumor stage, there was no significant correlation found (p=0,81 and p=0,89 respectively). However, when analyzing the N stage, a clear association was observed, with a higher proportion of patients aged 65 years or older displaying advanced N3 stage breast cancer (p=0.000013). A significant relationship was found between TILs and the Ki-67 proliferative index, with cases exhibiting high TILs also demonstrating a high proliferative index (p=0.003). Furthermore, increased TIL concentration was associated with a positive response to therapy and improved overall survival in TNBC patients (p=0.001). CONCLUSIONS: These findings emphasize the importance of considering age, pathological stage, proliferative index, and the presence of TILs in TNBC prognosis. Evaluation of TILs in routine histopathologic examination and inclusion in pathology reports, particularly in postmenopausal patients, could provide valuable information for future studies and guide treatment decisions. Additional research on immune-modulating therapies targeting TILs may hold promise for improving outcomes in TNBC patients.
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    Low Grade Mucinous Appendiceal Neoplasia Presenting as Ovarian Tumor; A Rare Case Report
    (2023) Terzi, Neslihan Kaya
    It can be difficult to distinguish between primary and metastases in ovarian mucinous neoplasms, both clinically and histopathologically. Especially in mucinous type ovarian neoplasia, the possibility of metastasis of a mucinous neoplasia originating from the appendix or colon should be kept in mind due to its close proximity to the ovary. Considered to be of primary ovarian origin with clinical and radiological findings; however, we present a rare case that we detected as a mucinous neoplasia metastasis originating from the appendix by histopathological and molecular analysis. Although intraoperative histopathological evaluation is important in ovarian neoplasia, a more accurate diagnosis can be made with immunohistochemical and molecular additional diagnostic methods, especially in cases with mucinous type ovarian neoplasia.