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Baş Y, Yılmaz B, Güney G, Şahin HHK, Özçerezci T, Rençber E, Koçak Ö, Helvacı K, Şahiner İT. Clinicopathological and prognostic significance of PD-L1 expression in colon adenocarcinoma tumor budding. Ann Diagn Pathol 2023; 67:152202. [PMID: 37689039 DOI: 10.1016/j.anndiagpath.2023.152202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/13/2023] [Accepted: 08/14/2023] [Indexed: 09/11/2023]
Abstract
OBJECTIVE In this study, we investigated the relationship between programmed cell death ligand 1 (PD-L1) and programmed cell death protein 1 (PD-1) expression in colon adenocarcinoma tumor budding. METHODS This study included 122 patients with colon adenocarcinomas. The largest sample of formaldehyde-fixed paraffin-embedded tumor tissues was selected for analysis. Expression of membranous PD-L1 (clone 22C3) and the Combined Positive Score (CPS) in tumor tissues was calculated and graded according to the percentages of peritumoral and intratumoral tumor cells (0 %, 1 %, 1-5 %, >5 %). The effects of these factors on the prognosis were analyzed. RESULTS Tumor budding was associated with adverse clinicopathological features and poor overall survival. PD-L1 (CPS%) peritumoral tumor budding (1 %/<1 %) was statistically significant in the univariate model (p = 0.004). Age, organ metastases (liver, lung, liver, lung, and peritoneum), and metastases were statistically significant in the multivariate model (p = 0.001, p = 0.004, p = 0.001, p = 0.002, p = 0.004, and p = 0.032, respectively). PD-L1 positive staining was mostly observed around the tumor and during tumor budding. PD-L1 peritumoral tumor budding rates and patients' survival rates differed significantly (log-rank = 12.07, p = 0.007). CONCLUSION We found that patients with PD-L1 (CPS%) > 1 % in tumor budding had a shortened life expectancy and demonstrated the importance of including tumor budding areas in the samples used for biomarker evaluation. We previously reported that PD-L1 expression in tumor budding is associated with more aggressive cancer biology and poor survival, although overall survival is of limited statistical significance.
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Affiliation(s)
- Yılmaz Baş
- Department of Pathology, Hitit University Faculty of Medicine, Çorum, Turkey.
| | - Bayram Yılmaz
- Department of Pathology, Hitit University Erol Olçok Education and Research Hospital, Çorum, Turkey
| | - Güven Güney
- Department of Pathology, Hitit University Faculty of Medicine, Çorum, Turkey
| | | | - Tuğba Özçerezci
- Department of Pathology, Hitit University Erol Olçok Education and Research Hospital, Çorum, Turkey
| | - Emin Rençber
- Department of Public Health, Head of Community Health, Provincial Health Directorate, Çorum, Turkey
| | - Özgür Koçak
- Department of Gynecology and Obstetrics, Hitit University Faculty of Medicine, Çorum, Turkey
| | - Kaan Helvacı
- Department of Oncology, Hitit University Faculty of Medicine, Çorum, Turkey
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Baş Y, Beyhan YE, Şahin HHK, Özçerezci T, Karasartova D, Güreser AS, Güney G, Taylan Özkan A. Evaluation of Formalin-fixed Paraffin-embedded Tissue Samples Diagnosed by Histopathology as Echinococcus in Çorum. Turkiye Parazitol Derg 2021; 45:262-267. [PMID: 34889193 DOI: 10.4274/tpd.galenos.2021.22931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
OBJECTIVE This study aimed to detect the presence of Echinococcus spp. in formalin-fixed paraffin-embedded (FFPG) samples of hydatid cyst cases and to discuss the DNA isolation problems in FFPG samples. METHODS FFPG samples of 47 cases diagnosed with hydatid cyst were included in this study. Demographic characteristics of the cases were investigated. Microtome sections were taken from the samples and deparaffinization, DNA extraction, polymerase chain reaction (PCR), and gel agarose electrophoresis procedures were performed. RESULTS Of the cases, 55.3% were female, whereas 45.7% were male. Average age was 45.47 and 68.1% of the cases were located in the liver, 17.0% in the lung, 12.8% in the abdomen, and 2.1% in the brain. DNA was obtained in only 11 (23.4%) of the FFPG cyst samples and no proliferation was detected in the PCR products of any of the sample. CONCLUSION The scolex/germinal membrane' absence in the FFPG sections, intense inflammatory cell reaction, presence of fibrosis and stromal/parenchymal tissue, DNA damage due to formaldehyde action, long-term archiving, and insufficient amount of DNA obtained were considered as factors preventing DNA replication in PCR.
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Affiliation(s)
- Yılmaz Baş
- Hitit Üniversitesi Tıp Fakültesi, Tıbbi Patoloji Anabilim Dalı, Çorum, Türkiye
| | - Yunus Emre Beyhan
- Van Yüzüncü Yıl Üniversitesi Tıp Fakültesi, Tıbbi Parazitoloji Anabilim Dalı, Van, Türkiye
| | | | - Tuğba Özçerezci
- Hitit Üniversitesi Tıp Fakültesi, Tıbbi Patoloji Anabilim Dalı, Çorum, Türkiye
| | - Dursun Karasartova
- Hitit Üniversitesi Tıp Fakültesi, Tıbbi Mikrobiyoloji Anabilim Dalı, Çorum, Türkiye
| | - Ayşe Semra Güreser
- Hitit Üniversitesi Tıp Fakültesi, Tıbbi Mikrobiyoloji Anabilim Dalı, Çorum, Türkiye
| | - Güven Güney
- Hitit Üniversitesi Tıp Fakültesi, Tıbbi Patoloji Anabilim Dalı, Çorum, Türkiye
| | - Ayşegül Taylan Özkan
- Hitit Üniversitesi Tıp Fakültesi, Tıbbi Mikrobiyoloji Anabilim Dalı, Çorum, Türkiye
- TOBB Ekonomi ve Teknoloji Üniversitesi Tıp Fakültesi, Tıbbi Mikrobiyoloji Anabilim Dalı, Ankara, Türkiye
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Baş Y, Koç N, Helvacı K, Koçak C, Akdeniz R, Şahin HHK. Clinical and pathological significance of programmed cell death 1 (PD-1)/programmed cell death ligand 1 (PD-L1) expression in high grade serous ovarian cancer. Transl Oncol 2020; 14:100994. [PMID: 33333370 PMCID: PMC7736714 DOI: 10.1016/j.tranon.2020.100994] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 11/18/2020] [Accepted: 12/07/2020] [Indexed: 12/15/2022] Open
Abstract
PD-L1 expression in HGSOC requires further study with modern antibody reagents and platforms. The association of PD-L1 positive cases with CD8+ immune cells is more prominent. The checkpoint value in HGSOC is not yet clear, but there is an importance meaningful when the threshold is ≥5%. PD-L1 expression shows two immunohistochemical staining patterns, patchy/diffuse and patchy/focal.
We investigated programmed cell death 1 (PD-1) / programmed cell death ligand 1 (PD-L1) expression in high grade serous ovarian cancer (HGSOC) and its relationship to tumor infiltrating lymphocytes (TIL) and prognosis. Formalin fixed paraffin embedded (FFPE) samples of 94 HGSOC cases were included in the study. Immunohistochemical analysis (CD3, CD4, CD8, PD-1 and PD-L1) was performed. Samples were analyzed for expression of immune proteins in the peritumoral stromal and intratumoral areas, scored, and expression was correlated with overall survival, stage, and age. PD-L1 staining ratio with a score greater than 0 was found to have lower survival. There were two positive staining patterns, patchy/diffuse and patchy/focal patterns, in 24 (25.5%) cases. Considering the threshold value ≥5%, we demonstrated that the PD-L1 positive cancer cell membrane immunoreactivity rate and patchy/diffuse PD-L1 expression were 9.6% (n = 9). There was statistically significant relationship between high PD-1 scores and PD-L1 cases of ≥ 5%. A statistically significant difference was found between PD-L1 staining and survival in patients with a threshold ≥ 5%. However an appropriate rate for treatment was determined in 9.6% cases. There was a statistically significant correlation between PD-1 positive TIL score and intratumoral CD3, peritumoral stromal CD3, intratumoral CD4 and intratumoral CD8 positive cells. Survival was lower in cases with higher PD-L1 positive stromal TIL score.
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Affiliation(s)
- Yılmaz Baş
- Department of Pathology, Hitit University Faculty of Medicine, Çorum Turkey.
| | - Nermin Koç
- Department of Pathology, Zeynep Kamil Maternity and Pediatric Research and Training Hospital, İstanbul, Turkey.
| | - Kaan Helvacı
- Department of Oncology, Hitit University Faculty of Medicine, Çorum, Turkey.
| | - Cem Koçak
- Department of Statistics, Hitit University Faculty of Health Sciences/Nursing, Çorum Turkey.
| | - Raşit Akdeniz
- Department of Pathology, Hitit University Erol Olçok Education and Research Hospital, Çorum, Turkey.
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Baş Y, Aker FV, Gönültaş A, Akdeniz R, Turgal E, Çıkrıkçıoğlu MA. Effect of high-risk human papillomavirus in esophageal squamous cell carcinoma in Somalian and Turkish cases. Pathog Dis 2020; 77:5556942. [PMID: 31504479 DOI: 10.1093/femspd/ftz047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 08/29/2019] [Indexed: 12/14/2022] Open
Abstract
This study aimed to investigate the role of high-risk human papillomavirus (Hr-HPV) in Somalian and Turkish patients with esophageal squamous cell carcinoma (ESCC). In the sections obtained from paraffin-embedded blocks, the results of invasive tumor, peripheral tumor dysplasia and normal mucosa were examined. Samples containing 45 and 47 ESCC, 46 and 42 dysplasia in Somalian (n = 52) and Turkish (n = 53) cases, respectively, were included in the study. We examined the presence of 14 types of Hr-HPV in ESCC collected from Somalia and Turkey by Aptima® Panther System. Hr-HPV types were not detected in Somalian cases. p16INK4a is positive in 5 (11.4%) tumors and 6 (13%) dysplasia. p53 is positive in 28 (62.2%) tumors and 35 (76.1%) dysplasia. HPV16-18/45 are positive only in one of the Turkish cases. p16INK4a is positive in 5 (10.6%) tumors and 4 (9.5%) dysplasia. p53 is positive in 31 (63.3%) tumors and 24 (57.1%) dysplasia. No reaction was detected in normal mucosa samples in both countries. This study is regional. Although the findings did not reflect the general population, the present study shows that the effect of HPV on carcinogenesis in Somalian and Turkish ESCC patients was not significant.
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Affiliation(s)
- Yılmaz Baş
- Hitit University, Department of Pathology, Faculty of Medicine, 19300 Çorum, Turkey
| | - Fügen Vardar Aker
- University of Health Sciences, Department of Pathology, Haydarpasa Numune Training and Research Hospital, 34668 Istanbul, Turkey
| | - Aylin Gönültaş
- University of Health Sciences, Department of Pathology, Haydarpasa Numune Training and Research Hospital, 34668 Istanbul, Turkey
| | - Raşit Akdeniz
- Hitit University, Department of Pathology, Erol Olçok Education and Research Hospital, 19300 Çorum, Turkey.,Department of Pathology, Somalia Mogadishu-Turkey Education and Research Hospital, Mogadishu, Somalia
| | - Ebru Turgal
- Hitit University, Department of Biostatistics, Faculty of Medicine, 19300 Çorum, Turkey
| | - Makbule Arar Çıkrıkçıoğlu
- University of Health Sciences, Department of Pathology, Haydarpasa Numune Training and Research Hospital, 34668 Istanbul, Turkey
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Şenel E, Baş Y. Evolution of Telepathology: A Comprehensive Analysis of Global Telepathology Literature Between 1986 and 2017. Turk Patoloji Derg 2020; 36:218-226. [PMID: 32282053 PMCID: PMC10510594 DOI: 10.5146/tjpath.2019.01484] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 03/15/2020] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE Telepathology is an application of telemedicine providing remote evaluation and consultation of digital pathology images and can be used for educational or experimental purposes. Bibliometrics is a statistical discipline investigating publication patterns and trends in a certain academic field. Although bibliometric and scientometric studies are becoming increasingly popular, the relevant literature contains only one limited article related to telepathology. The aim of our study was to perform a holistic bibliometric analysis of the telepathology literature. MATERIAL AND METHOD Since the first article on telepathology was published in 1986, we included all indexed articles retrieved from Web of Science databases between 1986 and 2017. RESULTS We found that the USA covering 43.01% of all literature was the leading country in the telepathology field and was followed by Germany, Italy and the UK (n=120, 90 and 83, respectively). The countries with the most contributions were located in the continents of Europe and North America. The most productive source titles were Human Pathology, Journal of Telemedicine and Telecare, and Modern Pathology. Harvard University ranked first with 59 articles. The most commonly used keywords of the telepathology literature were "telepathology", "telemedicine", "digital pathology", "virtual microscopy" and "telecytology". We noted that all of the ten countries with the most contributions were in the developed category of UN classification and all twenty of the most productive institutions were from developed countries. CONCLUSION We suggest that researchers from developing and least developed countries should be encouraged to carry out novel studies since telemedicine is a required and promising technology for rural developing or least developed areas in which access to health care is difficult.
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Affiliation(s)
- Engin Şenel
- Department of Dermatology, Hitit University Faculty of Medicine, Çorum, Turkey
| | - Yılmaz Baş
- Department of Pathology, Hitit University Faculty of Medicine, Çorum, Turkey
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Doğan G, İpek H, Baş Y, Doğan G, Kayır S. Experimental study on prophylactic effects of vardenafil in ischemia-reperfusion model with intestinal volvulus injury in rats. J Pediatr Surg 2019; 54:2172-2177. [PMID: 30885562 DOI: 10.1016/j.jpedsurg.2019.02.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 02/10/2019] [Accepted: 02/12/2019] [Indexed: 10/27/2022]
Abstract
AIM An experimental study was performed to evaluate the effects of Vardenafil on ischemia-reperfusion (I/R) injury in an experimental volvulus model by histochemical and biochemical methods. MATERIALS AND METHODS Thirty-five male Wistar rats were divided in five groups (n = 7). In Group 1, a 5 cm segment of small intestine 2 cm proximal to cecum was excised to have a control group. In the second group, 5 cm segment of small intestine 2 cm proximal to cecum was rotated 360° clockwise direction and sutured with 4/0 polyglactin to generate an experimental model of volvulus. At the end of 2 h of ischemia, the same intestinal segment was sampled. In group 3, after achieving ischemia similar to group 2, two hours of reperfusion injury was obtained by removing the sutures. Rats in Group 4 received vardenafil after 1.5 h of ischemia and then 2 h of reperfusion. And finally, in Group 5, vardenafil was administered 2 h before laparotomy and 5 cm of intestine was removed without I/R injury. Intestinal segments were evaluated for total antioxidant status (TAS), total oxidant status (TOS) and oxidative stress index (OSI) with biochemical and histopathological analysis. RESULTS Serum TOS levels and OSI were not significantly different between groups (p = 0.910, P = 0,43 respectively). The serum TAS level was decreased in group 3 as compared to vardenafil groups 4 and 5, without a statistical significance (p = 0.428). In histopathologic analysis, we found that vardenafil, partially reduced I/R injury. The villus structure was preserved but, congestion and inflammation were moderate. CONCLUSION Vardenafil partially reduced I/R injury histopathologically on intestine. Our study shows that it does not have statistically antioxidant effect on intestinal I/R injury in experimental model of volvulus. However, effects of vardenafil in I/R injury of liver, kidney, heart, testis, over and brain which were cited in literature were not confirmed with I/R injury on intestine.
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Affiliation(s)
- Gül Doğan
- Hitit University Erol Olcok Training and Research Hospital, Department of Pediatric Surgery, Çorum, Turkey; Hitit University Faculty of Medicine, Department of Pediatric Surgery, Çorum, Turkey.
| | - Hülya İpek
- Hitit University Erol Olcok Training and Research Hospital, Department of Pediatric Surgery, Çorum, Turkey
| | - Yılmaz Baş
- Hitit University Erol Olcok Training and Research Hospital, Department of Pathology, Çorum, Turkey; Hitit University Faculty of Medicine, Department of Pathology, Çorum, Turkey
| | - Güvenç Doğan
- Hitit University Erol Olcok Training and Research Hospital, Department of Anesthesiology and Reanimation, Çorum, Turkey; Hitit University Faculty of Medicine, Department of Anesthesiology and Reanimation, Çorum, Turkey
| | - Selçuk Kayır
- Hitit University Erol Olcok Training and Research Hospital, Department of Anesthesiology and Reanimation, Çorum, Turkey
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Baş Y, Şenel E. A Holistic Evaluation of Articles on PD-1 and PD-L1 Published Between 1975 and 2017: A Bibliometric Analysis. Cancer Inform 2019; 18:1176935119852620. [PMID: 31210726 PMCID: PMC6552349 DOI: 10.1177/1176935119852620] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 04/23/2019] [Indexed: 12/20/2022] Open
Abstract
Background: Bibliometrics has been used for assessing and predicting trends in macro-health science and medical systems, especially in the field of cancer. Bibliometric and scientometric studies in the field of programmed cell death 1/programmed cell death 1 ligand 1 (PD-1/PD-L1) may guide further research in this field. Objective: To perform bibliometric analysis of articles on PD-1 and PD-L1 published in the academic literature during 1975 to 2017. Method: The bibliometric analysis was performed using the Thomson Reuters Web of Science database. Results: A total of 23 813 articles were retrieved, 73.52% of which were original articles. The United States was the leading country by total publication number (n = 10 897, 10.91%), followed by China (10.54%), and produced the most literature on PD-1/PD-L1 (164.65 articles). Among the institutions identified, Harvard University (USA) contributed the most articles on PD-1/PD-L1. Conclusions: All authors and institutions in the top 10 contributor’s lists were from the developed countries. Researchers from the developing and least-developed countries should be encouraged to perform novel studies on PD-1 and PD-L1.
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Affiliation(s)
- Yılmaz Baş
- Department of Pathology, Hitit University Erol Olçok Education and Research Hospital, Çorum, Turkey
| | - Engin Şenel
- Department of Dermatology, Hitit University Erol Olçok Education and Research Hospital, Çorum, Turkey
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Güney G, Arslan E, Baş Y, Turgal E. Two-Year Results of Community-Based Screening Program for Human Papilloma Virus DNA in Çorum Province. Turk Patoloji Derg 2019; 35:102-106. [PMID: 30793760 DOI: 10.5146/tjpath.2018.01452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE The Turkish Ministry of Health started a community-based screening program using Human Papilloma Virus (HPV) DNA in 2014. In our study, we aimed to investigate the results of this survey in Çorum province between the years of 2016-17 to determine the shortcomings and deficiencies in practice. MATERIAL AND METHOD All of the women between the ages of 30 and 65 years who had undergone High risk HPV DNA screening in Çorum province between 2016 and 2017 were included in the study. High risk HPV types were divided into three categories as type 16, 18 and others. The target group of patients to be screened were compared with the numbers reached in the survey. After colposcopic biopsy, the clinicopathological correlation of the patients who underwent colposcopic biopsy was determined via pathology reports. RESULTS HPV DNA was detected in 817 women (3.5%). HPV types 16, 18 and others were found to be positive in 216, 32 and 569 individuals, respectively. Cervical biopsy was performed with colposcopy in 212 (26%) women. As the result of colposcopy, LSIL and HSIL were detected in 63 and 56 patients, respectively. 34.5% of patients with the diagnosis of any kind of dysplasia received treatments. CONCLUSION It was determined that 44% of HPV DNA-positive patients were not subjected to the appropriate processes according to the national guidelines. This shows that despite the screening, the desired therapeutic effect could not be achieved.
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Affiliation(s)
- Güven Güney
- Department of Pathology, Hitit University, Faculty of Medicine, ÇORUM, TURKEY
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Adigüzel C, Baş Y, Erhan MD, Gelle MA. The Female Genital Mutilation/Cutting Experience in Somali Women: Their Wishes, Knowledge and Attitude. Gynecol Obstet Invest 2018; 84:118-127. [PMID: 30227436 DOI: 10.1159/000493130] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 08/20/2018] [Indexed: 11/19/2022]
Abstract
BACKGROUND Female genital mutilation/cutting (FGM/C) is a common sociocultural practice in many communities in Africa. Unfortunately, what females are forced to accept because they are helpless, in order to be an individual in social life and in the country they live in, is an important health issue that is not only harmful to the human body but also against human rights. OBJECTIVES This study aimed to investigate the wishes, knowledge and attitude of Somali women regarding FMG/C. METHODS From 16 regions of Somalia, 356 women were randomly selected. A structured and interviewer-administered questionnaire was used to collect data. RESULTS Except for one, all women participating in the survey were circumcised. A significant proportion of women embraced the continuation of FGM/C (52%) and 54.2% of them were satisfied with being FMG/C. Their knowledge, attitude, and practices were shaped by their religion and traditions. However, the proportion of those who wanted to stop FGM/C was 91%. CONCLUSIONS Further efforts and research from different countries, cultures, beliefs, organizations, and individuals focusing on knowledge, awareness, legalization, and the opinions of lay and religious individuals, particularly including women's rights activists, and women with FGM/C, are needed to stop FGM/C, also known as female circumcision.
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Affiliation(s)
- Cevdet Adigüzel
- Department of Obstetrics and Gynecology, Adana City Hospital, Adana, Turkey
| | - Yılmaz Baş
- Department of Pathology, Hitit University Erol Olçok Education and Research Hospital, Çorum,
| | - Mehmet Deniz Erhan
- Department of Pediatry, Adana Gynecological Diseases Birth and Child Hospital, Adana, Turkey
| | - Maimuna Abdi Gelle
- Department of Obstetrics and Gynecology, Somalia Mogadishu Turkey Education and Research Hospital, Mogadishu, Somalia
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Kale A, Pişkin Ö, Baş Y, Aydın BG, Can M, Elmas Ö, Büyükuysal Ç. Neuroprotective effects of Quercetin on radiation-induced brain injury in rats. J Radiat Res 2018; 59:404-410. [PMID: 29688418 PMCID: PMC6054235 DOI: 10.1093/jrr/rry032] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 01/02/2018] [Indexed: 05/27/2023]
Abstract
Extensive research has been focused on radiation-induced brain injury. Animal and human studies have shown that flavonoids have remarkable toxicological profiles. This study aims to investigate the neuroprotective effects of quercetin in an experimental radiation-induced brain injury. A total of 32 adult male Wistar-Albino rats were randomly divided into four groups (control, quercetin, radiation, and radiation+quercetin groups, with eight rats in each group). Doses (50 mg/kg) of quercetin were administered to the animals in the quercetin and radiation+quercetin groups; radiation and radiation+quercetin groups were exposed to a dose of 20 Gy to the cranium region. Tissue samples, and biochemical levels of tissue injury markers in the four groups were compared. In all measured parameters of oxidative stress, administration of quercetin significantly demonstrated favorable effects. Both plasma and tissue levels of malondialdehyde and total antioxidant status significantly changed in favor of antioxidant activity. Histopathological evaluation of the tissues also demonstrated a significant decrease in cellular degeneration and infiltration parameters after quercetin administration. Quercetin demonstrated significant neuroprotection after radiation-induced brain injury. Further studies of neurological outcomes under different experimental settings are required in order to achieve conclusive results.
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Affiliation(s)
- Aydemir Kale
- Department of Neurosurgery, Bülent Ecevit University Faculty of Medicine, Zonguldak, Turkey
| | - Özcan Pişkin
- Department of Anesthesiology and Reanimation, Bülent Ecevit University Faculty of Medicine, Zonguldak, Turkey
| | - Yılmaz Baş
- Department of Pathology, Hitit University Faculty of Medicine, Çorum, Turkey
| | - Bengü Gülhan Aydın
- Department of Anesthesiology and Reanimation, Bülent Ecevit University Faculty of Medicine, Zonguldak, Turkey
| | - Murat Can
- Department of Biochemistry, Bülent Ecevit University Faculty of Medicine, Zonguldak, Turkey
| | - Özlem Elmas
- Department of Radiation Oncology, Bülent Ecevit University Faculty of Medicine, Zonguldak, Turkey
| | - Çağatay Büyükuysal
- Department of Biostatistics, Bülent Ecevit University Faculty of Medicine, Zonguldak, Turkey
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Abstract
OBJECTIVE There are no up-to-date records on head and neck masses (HNMs) in Somalia. This cytological study is the first to demonstrate the benefits and findings of fine-needle aspiration cytology in evaluating HNMs in the adult population of Somalia. STUDY DESIGN A total of 116 aspiration samples were taken from different levels of the neck region, except for the thyroid. Cases were classified as salivary gland, lymph node, or soft tissue/cystic lesions. They were classified according to age, gender, and cytological diagnosis. RESULTS Patients included 54 (46.6%) males and 62 (53.4%) females, with a mean age of 40.6 years. Seventy-two patients (62.1%) had benign lesions, while 44 (37.9%) had malignant lesions. Necrotizing granulomatous lymphadenitis (n = 51, 70.8% of the benign findings) and lymph node metastasis of squamous cell carcinoma (n = 13, 29.5% of the malignant findings) were the most frequent findings. CONCLUSION Fine-needle aspiration is a useful procedure in the diagnosis of neck masses. It is a cheap and easy guiding method for diagnosing granulomatous lymphadenitis and advanced-stage metastatic cancers, which are common in this country.
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Affiliation(s)
- Yılmaz Baş
- Hitit University, Erol Olçok Education and Research Hospital, Department of Pathology, Çorum, Turkey
- Somali Mogadishu-Turkey Education and Research Hospital, Department of Pathology, Mogadishu, Somalia
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Pişkin Ö, Aydın BG, Baş Y, Karakaya K, Can M, Elmas Ö, Büyükuysal MÇ. Protective Effects of Quercetin on Intestinal Damage Caused by Ionizing Radiation. Haseki 2018. [DOI: 10.4274/haseki.25743] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Baş Y, Şahin M. Histomorphological diagnostic diffuculties in colon perforation. Journal of Health Sciences and Medicine 2018. [DOI: 10.32322/jhsm.397678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Türkmen İÇ, Usubütün A, Çakir A, Aydin Ö, Bolat FA, Akbulut M, Altinay S, Arici S, Aslan F, Astarci M, Bağir EK, Baş Y, Başsüllü N, Çelik B, Çetiner H, Çobanoğlu B, Aydin A, Demir H, Doğan HT, Eken KG, Erhan SŞ, Erdoğan G, Erdoğan KE, Eren F, Ersöz Ş, Firat P, Gürses İ, Haberal N, Kahraman DS, Kamali GH, Karabulut YY, Kefeli M, Koyuncuoğlu M, Köseoğlu RD, Müezzinoğlu B, Onal B, Önder S, Özcan Z, Kimiloğlu E, Özer H, Sönmez FC, Şahin S, Şahin N, Yalta T. What does the Data of 354,725 Patients from Turkey Tell Us About Cervical Smear Epithelial Cell Abnormalities? - The Epithelial Cell Abnormality Rate is Increasing - Quality Control Studies and Corrective Activity are Musts. Turk Patoloji Derg 2018; 33:134-143. [PMID: 28272675 DOI: 10.5146/tjpath.2016.01380] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE There is no other screening program close to the success rate of PAP test. Cervical cytology constitutes a large workload so that quality control in cervical cytology is important for the quality assurance of pathology laboratories. MATERIAL AND METHOD In this study, we collected the cervical cytology results from all over Turkey and discussed the parameters influencing the quality of the PAP test. The study was conducted with Turkish gynaecopathology working group and 38 centers (totally 45 hospitals) agreed to contribute from 24 different cities. The study was designed to cover the cervical cytology results during 2013. The results were evaluated from the data based on an online questionnaire. RESULTS The total number of Epithelial Cell Abnormality was 18,020 and the global Epithelial Cell Abnormality rate was 5.08% in the total 354,725 smears and ranging between 0.3% to 16.64% among centers. The Atypical squamous cells /Squamous intraepithelial lesion ratios changed within the range of 0.21-13.94 with an average of 2.61. When the centers were asked whether they performed quality assurance studies, only 14 out of 28 centers, which shared the information, had such a control study and some quality parameters were better in these centers. CONCLUSION There is an increase in the global Epithelial Cell Abnormality rate and there are great differences among centers. Quality control studies including the Atypical squamous cells/Squamous intraepithelial lesion ratio are important. Corrective and preventive action according to quality control parameters is a must. A cervical cytology subspecialist in every center can be utopic but a dedicated pathologist in the center is certainly needed.
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Baş Y, Hassan HA, Adıgüzel C, Bulur O, Ibrahim İA, Soydan S. The distribution of cancer cases in Somalia. Semin Oncol 2017; 44:178-186. [PMID: 29248129 DOI: 10.1053/j.seminoncol.2017.10.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 04/18/2017] [Accepted: 10/10/2017] [Indexed: 02/07/2023]
Abstract
OBJECTIVE The aim of this study was to investigate the frequency and distribution of cancer cases in a defined time period in Somalia. MATERIALS AND METHODS A total of 403 cancer cases were diagnosed between January 01, 2016 and March 01, 2017 in the Department of Pathology at the Somalia Mogadishu-Turkey Education and Research Hospital or the Department of Oncology at Uniso Hospital, Somalia University. Data on cancer type, patient age, and gender were obtained from pathology reports and hospital records. RESULTS Female patients totaled 49.6% (n = 200) and 50.4% of patients were male (n = 203). The youngest patient was 18 years of age, the oldest was 97, and the average age was 53.4 years. The 10 most common types of cancer were esophageal (n = 130, 32.3%), non-Hodgkin lymphoma (n = 35, 8.7%), liver (n = 26, 6.5%), breast (n = 24, 6.0%), skin (n = 17, 4.2%), thyroid (n = 13, 3.2%), brain (n = 12, 3.0%), bone (n = 11, 2.7%), colorectal (n = 11, 2.7%), and soft tissue (n = 11, 2.7%). The most common site of cancer in both males and females was the esophagus. CONCLUSION These results show a high incidence of esophageal cancer in Somalia, and strongly suggest that environmental risk factors and nutritional habits have a strong impact in this population. Serious and extensive research on the etiology of esophageal cancer is required.
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Affiliation(s)
- Yılmaz Baş
- Department of Pathology, Somalia-Turkey Education and Research Hospital, Mogadishu, Somalia; Hitit University Medical School, Çorum, Turkey.
| | | | - Cevdet Adıgüzel
- Department of Obstetrics and Gynecology, Somalia-Turkey Education and Research Hospital, Mogadishu, Somalia
| | - Oktay Bulur
- Department of Internal Medicine, Somalia-Turkey Education and Research Hospital, Mogadishu, Somalia
| | - İkram Abdikarim Ibrahim
- Department of General Surgery, Somalia-Turkey Education and Research Hospital, Mogadishu, Somalia
| | - Seçil Soydan
- Department of General Surgery, Somalia-Turkey Education and Research Hospital, Mogadishu, Somalia
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Abstract
BACKGROUND Behçet's disease is a chronic inflammatory disease involving multiple systems, with vasculitis being the most important pathological feature. Multiple colon perforations are thought to be secondary to vasculitis and they occur in patients with ulcers. These may be encountered within the entire colon but most commonly in the ileocecal region. Intestinal perforation and Budd-Chiari syndrome are infrequent in Behçet's disease, and are associated with high mortality and morbidity. Budd-Chiari syndrome results from occlusion of either hepatic veins or adjacent inferior vena cava, or both. CASE REPORT We report a patient with Behçet's disease having multiple perforations in the transverse colon, descending colon, and sigmoid colon. The patient also had Budd-Chiari syndrome due to inferior vena cava thrombosis extending into the right and middle hepatic vein. Our observations are presented with a review of the literature. CONCLUSIONS In Behçet's disease, treatment of colon perforation necessitates urgent surgery, whereas management of Budd-Chiari syndrome is directed towards the underlying cause. Behçet's disease, as a chronic multisystemic disease with various forms of vasculitis, is resistant to medical and surgical treatment. Prognosis is worse in Behçet's disease with colon perforation than that in Budd-Chiari syndrome alone.
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Affiliation(s)
- Yılmaz Baş
- Department of Pathology, Hitit University, Faculty of Medicine, Çorum, Turkey
| | - Güven Güney
- Department of Pathology, Hitit University, Faculty of Medicine, Çorum, Turkey
| | - Pınar Uzbay
- Department of Pathology, Hitit University, Faculty of Medicine, Çorum, Turkey
| | - Ethem Zobacı
- Department of General Surgery, Hitit University, Faculty of Medicine, Çorum, Turkey
| | - Selin Ardalı
- Department of Radiology, Hacettepe University, Faculty of Medicine, Ankara, Turkey
| | - Ayşegül Taylan Özkan
- Department of Microbiology, Hitit University, Faculty of Medicine, Çorum, Turkey
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Baş Y, Uzbay P, Güney G, Erenler BH, Yilmaz D, Ozdemır C. A study on distribution of cancer cases diagnosed in Çorum. Turk Patoloji Derg 2014; 30:118-23. [PMID: 24782299 DOI: 10.5146/tjpath.2014.01243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE In order to help obtain accurate knowledge and to contribute to the establishment of data for regional tumor statistics, we aimed to determine the frequency distribution of cancer cases that was diagnosed in Çorum province. MATERIAL AND METHOD In this descriptive study, we retrospectively reviewed the archive records of the pathology departments' of one university hospital and two private hospitals serving in the province of Çorum. A total of 138,973 recorded pathology reports were reviewed. Metastatic cancers with a known primary source were excluded. A total of 2184 cases with a diagnosis of cancer were recorded by gender, age, and system/organ and classified to 10 most frequent types of cancer both in general and in terms of gender distribution. RESULTS The male to female ratio was 1.44 and the mean age was 64.26 years. The cancer is most commonly encountered between 70 and 79 years of age (35.27%) in males whereas the second most common interval was 60 to 69 years of age (23.88%). In females, the cancer is most commonly encountered between 70 and 79 years of age (24.16%) whereas the second most common interval was 60 to 69 years of age (22.60%). The top five cancers were skin (33.60%), prostate (13.87%), stomach (9.07%), urinary bladder (8.61%) and breast (7.88%). CONCLUSION Distribution of organ/system involvement of cancer cases that were diagnosed in Çorum is quite different from the data regarding Turkey in general. Development of cancer registry centers, upgrading to an active registry system and having all cancer data from health institutions unified in a single organization are mandatory to achieve reliable data.
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Affiliation(s)
- Yılmaz Baş
- Department of Pathology, Hitit University, Çorum Education and Research Hospital, ÇORUM, TURKEY
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