23 results on '"Erten, Gaye"'
Search Results
2. İmmünfloresan Yöntemi ile Belirlenen Otoantikorlarda Kadın/Erkek Dağılımı
- Author
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GÜREL-POLAT, Nuray, SAFRAN, Nurhas, and ERTEN, Gaye
- Subjects
Antinuclear antibody,ANA,non–organ-specific auto-antibody,mmunofluorescence assay,IFA ,Antinükleer antikor,ANA,organ spesifik olmayan otoantikorlar,immunfloresans,İFA ,Medicine ,skin and connective tissue diseases ,Tıp - Abstract
Amaç: Otoimmün hastalıkların tanısında ve takibinde kullanılan otoantikorlardan olan anti-nükleer antikorların ve organ spesifik olmayan antikorların pozitiflik oranları, kadın/erkek hastalardaki dağılımını saptamaktır.Gereç ve Yöntemler: Çalışmamızda retrospektif olarak 2016-2017 yılları arasında laboratuvarımıza başvuran hastaların serum örnek-lerinde immunfloresans (İFA) yöntemi ile çalışılan anti-nükleer an-tikor (ANA), anti-nötrofil sitoplazmik antikor (ANCA), anti-düz kas antikorları (ASMA), anti-karaciğer böbrek mikrozomal antikorları (anti-LKM1), anti-gastrik pariyetal hücre antikorları (anti-GPCA) ve anti-mitokondriyal antikorlar (AMA) gibi otoantikor değerleri taranmıştır. ANA, HEp-2 hücre soyu ile ASMA, AMA LKM-1 ve GP-CA’ları sıçan karaciğer, böbrek, mide dokusunu içeren kombine preparatlar kullanılarak; ANCA ise etanol ile fikse edilmiş insan nöt-rofil preparatları substrat olarak kullanılmıştır. ANA için 1/80, ASMA, AMA, LKM-1, GPCA için serum sulandırımı 1/40; ANCA için ise 1/20 ve üzeri pozitif olarak kabul edilmiştir. Ek olarak, pozitif örneklerde patern özellikleri ve dilüsyon miktarları da değerlendirilmiştir.Bulgular: İFA yöntemi ile çalışılmış 5378’si kadın, 3055’ü erkek (toplam 8433) hastanın serumlarında otoantikor test sonuçları in-celenmiştir. ANA patern özelliği en yoğun olarak homojen tip başta olmak üzere benekli (speckled), granüler, sentromer, nükleolar, pe-riferik ve nükleer tanecikler şeklindedir. Kadın hastaların pozitiflik değerleri erkek hastalara göre yüksek saptanmıştır.Sonuç: Değerlendirmemiz sonucunda, kadın hasta sayısının fazla olduğu ve kadınlardaki pozitiflik oranlarının da erkek hastaların iki veya üç katı oranında olduğu gözlenmiştir, Objective: This study determines the positivity rates and gender distribution of antinuclear and liver-specific autoantibodies that are considered important in the diagnosis and follow-up of auto-immune diseases. Material and Method: We retrospectively screened autoanti-bodies, including antinuclear antibodies (ANA), antineutrophil cytoplasmic antibody (ANCA), anti-smooth muscle antibodies (ASMA), anti-liver kidney microsomal-1 antibodies (anti-LKM-1), anti-gastric parietal cell antibodies (anti-GPCA), and antimitochon-drial antibodies (AMA) in serum samples of patients applied to our laboratory during 2015-2016 by immunofluorescence methodolo-gy. We used the Hep2 cell line for ANA, rat liver–kidney–stomach combined tissues for LKM-1, ASMA, GPCA and AMA, and ethanol fixed human granulocytes preparations for ANCA. Dilutions ≥1/80 for ANA, ≥1/40 for ASMA, AMA, LKM-1, GPCA, and ≥1/20 for ANCA were positive. Positive samples were also evaluated for their stain-ing patterns and dilutions.Results: Autoantibody test results studied with immunofluo-rescence were screened in 8433 (5378 females and 3055 males) samples. The highest staining pattern observed for ANA was ho-mogenous, followed by speckled, granular, centromere, nucleolar, peripheral, and nuclear speckled. Females exhibited a higher pos-itivity rate than males. Conclusion: The number and positivity rate of female patients were found to be two to three times higher than those of male patients.
- Published
- 2020
3. Natural Killer Cells in Allergic Inflammation
- Author
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Erten, Gaye, primary, Aktas, Esin, additional, and Deniz, Gunnur, additional
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- 2008
- Full Text
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4. Natural killer cells: versatile roles in autoimmune and infectious diseases
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Aktas, Esin, Erten, Gaye, Kucuksezer, Umut Can, and Deniz, Gunnur
- Published
- 2009
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- View/download PDF
5. Peripheral Blood Lymphocyte Activation and RANTES Levels in Asthma
- Author
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ERTEN, Gaye, MÜSELLİM, Benan, and TUTLUOĞLU, Bülent
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body regions ,immune system diseases ,Asthma,lymphocyte activation,RANTES ,hemic and immune systems - Abstract
Aim: Bronchial mucosal inflammation is one of the major characteristics of atopic asthma. Th2 activation and the related cytokine profile, eosinophil activation and infiltration play the main role in the pathogenesis of atopic asthma. The aim of this study was to demonstrate the activation and RANTES (regulated on activation, normal T-cell expressed and presumably secreted) expression of peripheral blood lymphocytes of non-atopic and atopic asthmatic patients. Materials and Methods: CD3, CD4, CD8, CD16, CD23, CD25, CD45RA and CD45RO expressions were determined in 22 asthma patients and 20 healthy control subjects by flow cytometry, and RANTES levels were measured by ELISA. Statistical analysis was performed by using Student´s t and Mann-Whitney U test. Results: CD45RO and CD23 expressions were significantly higher in asthma patients compared to control subjects (P = 0.009 and P = 0.004, respectively), and similarly, an increase in CD25 expression was also shown in asthmatics (P = 0.004). However, there was no difference in RANTES secretion of peripheral blood lymphocytes in asthmatics compared to the control group (P = 0.08). Atopic and non-atopic asthmatics (13 vs. 9) were compared, and atopic asthmatics showed significant increase in CD25 and CD23 expressions (P = 0.009 and P = 0.02, respectively). Conclusions: These changes in the activation state of T-cells suggest an active role of T lymphocytes in the pathogenesis of atopic and non-atopic asthma.
- Published
- 2014
6. Synergistic growth inhibitory effect of deracoxib with doxorubicin against a canine mammary tumor cell line, CMT-U27
- Author
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BAKIREL, Tülay, primary, ALKAN, Fulya Üstün, additional, ÜSTÜNER, Oya, additional, ÇINAR, Suzan, additional, YILDIRIM, Funda, additional, ERTEN, Gaye, additional, and BAKIREL, Utku, additional
- Published
- 2016
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7. TaqI, FokI, and ApaI Polymorphisms in the Vitamin D Receptor in Behçet’s Disease in Turkish Population
- Author
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Erten, Gaye, primary, Kalkan, Muhammed, additional, Bilgiç Gazioğlu, Sema, additional, Akdeniz, Nilgun, additional, Ozkok, Elif, additional, and Vural, Burcak, additional
- Published
- 2016
- Full Text
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8. 'XV. UYGULAMALI FLOW SİTOMETRİ EĞİTİMİ'NİN DEĞERLENDİRİLMESİ
- Author
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ÇINAR, Suzan Adın, ÇINAR, Suzan, ERTEN, Gaye, AKTAŞ ÇETİN, Esin, BİLGİÇ GAZİOĞLU, Sema, KÜÇÜKSEZER, Umut, GÜROL, Ali, YANIKKAYA DEMİREL, Gülderen, and DENİZ, Günnur
- Abstract
Hücre analiz yöntemlerinden biri olan akan hücre ölçer (flow sitometri) cihazı tıp alanında tanı ve tedavilere ışık tutmakta ayrıca veterinerlik, su ürünleri, mikrobiyoloji gibi farklı alanlarda da kullanılmaktadır. Akan hücre ölçer kullanıcısının detaylı bir eğitime ihtiyacı olduğu düşüncesi ile İstanbul Üniversitesi, Deneysel Tıp Araştırma Enstitüsü (İ.Ü. DETAE), İmmünoloji Anabilim Dalı tarafından ilki 1995 yılında tek günlük bir etkinlik olarak düzenlenen "Uygulamalı Flow Sitometri Eğitimi"nin onbeşincisi beş günlük bir program halinde 8-12 Haziran 2009 tarihlerinde düzenlenmiştir. Bu çalışma, eğitimin sonunda yapılan katılımcı anketini değerlendirmektedir. Eğitimde teorik anlatıma ek olarak, İmmünoloji AD'da mevcut toplam üç akan hücre ölçer cihazında uygulamalar yapılmıştır. Toplantı sonunda katılımcıların akan hücre ölçer ile ilgili geçmişleri, kursun kendilerine katkısı ve eleştiri-görüşleri sorgulanmıştır. Ankete katılan 26 katılımcı (%90; 9 erkek,17 kadın) içinde en fazla biyolog ve doktor (her biri %31) bulunmaktadır; katılımın üniversitelerden (17, %66) ve daha çok İstanbul'dan (9, %34) olduğu gözlenmiştir. Dokuz katılımcının (%35) aktif kullanıcı olduğu toplam 23 katılımcı (% 88) kursu "çok faydalı" veya "faydalı" olarak değerlendirmiş, 15 katılımcı (%58) ise "Cihazın kullanımını teorik olarak öğrendim, pratik bölümü eksik kaldı" görüşünü bildirmiştir. Sonuç olarak, İ.Ü. DETAE İmmünoloji AD tarafından düzenli olarak yapılan eğitimler Türkiye'de akan hücre ölçer konusunda önemli bir eksiği tamamlamış ve bilgi vermenin yanı sıra kullanıcılar arası bilgi alışverişi ve iletişimi sağlamıştır.
- Published
- 2011
9. Neurofilament ELISA validation
- Author
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Petzold, Axel, Altintas, Ayse, Andreoni, Laura, Bartos, Ales, Berthele, Achim, Blankenstein, Marinus A, Buee, Luc, Castellazzi, Massimiliano, Cepok, Sabine, Comabella, Manuel, Constantinescu, Cris S, Deisenhammer, Florian, Deniz, Gunnur, Erten, Gaye, Espiño, Mercedes, Fainardi, Enrico, Franciotta, Diego, Freedman, Mark S, Giedraitis, Vilmantas, Gilhus, Nils Erik, Giovannoni, Gavin, Glabinski, Andrzej, Grieb, Pawel, Hartung, Hans-Peter, Hemmer, Bernhard, Herukka, Sanna-Kaisa, Hintzen, Rogier, Ingelsson, Martin, Jackson, Samuel, Jacobsen, Steve, Jafari, Naghmeh, Jalosinski, Marcin, Jarius, Sven, Kapaki, Elisabeth, Kieseier, Bernd C, Koel-Simmelink, Marleen J A, Kornhuber, Johannes, Kuhle, Jens, Kurzepa, Jacek, Lalive, Patrice H, Lannfelt, Lars, Lehmensiek, Vera, Lewczuk, Piotr, Livrea, Paolo, Marnetto, Fabiana, Martino, Davide, Menge, Til, Norgren, Niklas, Papuć, Eva, Paraskevas, George P, Pirttilä, Tuula, Rajda, Cecília, Rejdak, Konrad, Ricny, Jan, Ripova, Daniela, Rosengren, Lars, Ruggieri, Maddalena, Schraen, Susanna, Shaw, Gerry, Sindic, Christian, Siva, Aksel, Stigbrand, Torgny, Stonebridge, Iva, Topcular, Baris, Trojano, Maria, Tumani, Hayrettin, Twaalfhoven, Harry A M, Vécsei, László, Van Pesch, Vincent, Vanderstichele, Hugo, Vedeler, Christian, Verbeek, Marcel M, Villar, Luisa Maria, Weissert, Robert, Wildemann, Brigitte, Yang, Cui, Yao, Karen, Teunissen, Charlotte E, Petzold, Axel, Altintas, Ayse, Andreoni, Laura, Bartos, Ales, Berthele, Achim, Blankenstein, Marinus A, Buee, Luc, Castellazzi, Massimiliano, Cepok, Sabine, Comabella, Manuel, Constantinescu, Cris S, Deisenhammer, Florian, Deniz, Gunnur, Erten, Gaye, Espiño, Mercedes, Fainardi, Enrico, Franciotta, Diego, Freedman, Mark S, Giedraitis, Vilmantas, Gilhus, Nils Erik, Giovannoni, Gavin, Glabinski, Andrzej, Grieb, Pawel, Hartung, Hans-Peter, Hemmer, Bernhard, Herukka, Sanna-Kaisa, Hintzen, Rogier, Ingelsson, Martin, Jackson, Samuel, Jacobsen, Steve, Jafari, Naghmeh, Jalosinski, Marcin, Jarius, Sven, Kapaki, Elisabeth, Kieseier, Bernd C, Koel-Simmelink, Marleen J A, Kornhuber, Johannes, Kuhle, Jens, Kurzepa, Jacek, Lalive, Patrice H, Lannfelt, Lars, Lehmensiek, Vera, Lewczuk, Piotr, Livrea, Paolo, Marnetto, Fabiana, Martino, Davide, Menge, Til, Norgren, Niklas, Papuć, Eva, Paraskevas, George P, Pirttilä, Tuula, Rajda, Cecília, Rejdak, Konrad, Ricny, Jan, Ripova, Daniela, Rosengren, Lars, Ruggieri, Maddalena, Schraen, Susanna, Shaw, Gerry, Sindic, Christian, Siva, Aksel, Stigbrand, Torgny, Stonebridge, Iva, Topcular, Baris, Trojano, Maria, Tumani, Hayrettin, Twaalfhoven, Harry A M, Vécsei, László, Van Pesch, Vincent, Vanderstichele, Hugo, Vedeler, Christian, Verbeek, Marcel M, Villar, Luisa Maria, Weissert, Robert, Wildemann, Brigitte, Yang, Cui, Yao, Karen, and Teunissen, Charlotte E
- Abstract
BACKGROUND: Neurofilament proteins (Nf) are highly specific biomarkers for neuronal death and axonal degeneration. As these markers become more widely used, an inter-laboratory validation study is required to identify assay criteria for high quality performance. METHODS: The UmanDiagnostics NF-light (R)enzyme-linked immunoabsorbent assays (ELISA) for the neurofilament light chain (NfL, 68kDa) was used to test the intra-assay and inter-laboratory coefficient of variation (CV) between 35 laboratories worldwide on 15 cerebrospinal fluid (CSF) samples. Critical factors, such as sample transport and storage, analytical delays, reaction temperature and time, the laboratories' accuracy and preparation of standards were documented and used for the statistical analyses. RESULTS: The intra-laboratory CV averaged 3.3% and the inter-laboratory CV 59%. The results from the test laboratories correlated with those from the reference laboratory (R=0.60, p<0.0001). Correcting for critical factors improved the strength of the correlation. Differences in the accuracy of standard preparation were identified as the most critical factor. Correcting for the error introduced by variation in the protein standards improved the correlation to R=0.98, p<0.0001 with an averaged inter-laboratory CV of 14%. The corrected overall inter-rater agreement was subtantial (0.6) according to Fleiss' multi-rater kappa and Gwet's AC1 statistics. CONCLUSION: This multi-center validation study identified the lack of preparation of accurate and consistent protein standards as the main reason for a poor inter-laboratory CV. This issue is also relevant to other protein biomarkers based on this type of assay and will need to be solved in order to achieve an acceptable level of analytical accuracy. The raw data of this study is available online.
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- 2010
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10. Neurofilament ELISA validation.
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UCL - SSS/IONS/CEMO - Pôle Cellulaire et moléculaire, UCL - (SLuc) Service de neurologie, Petzold, Axel, Altintas, Ayse, Andreoni, Laura, Bartos, Ales, Berthele, Achim, Blankenstein, Marinus A, Buee, Luc, Castellazzi, Massimiliano, Cepok, Sabine, Comabella, Manuel, Constantinescu, Cris S, Deisenhammer, Florian, Deniz, Gunnur, Erten, Gaye, Espiño, Mercedes, Fainardi, Enrico, Franciotta, Diego, Freedman, Mark S, Giedraitis, Vilmantas, Gilhus, Nils Erik, Giovannoni, Gavin, Glabinski, Andrzej, Grieb, Pawel, Hartung, Hans-Peter, Hemmer, Bernhard, Herukka, Sanna-Kaisa, Hintzen, Rogier, Ingelsson, Martin, Jackson, Samuel, Jacobsen, Steve, Jafari, Naghmeh, Jalosinski, Marcin, Jarius, Sven, Kapaki, Elisabeth, Kieseier, Bernd C, Koel-Simmelink, Marleen J A, Kornhuber, Johannes, Kuhle, Jens, Kurzepa, Jacek, Lalive, Patrice H, Lannfelt, Lars, Lehmensiek, Vera, Lewczuk, Piotr, Livrea, Paolo, Marnetto, Fabiana, Martino, Davide, Menge, Til, Norgren, Niklas, Papuć, Eva, Paraskevas, George P, Pirttilä, Tuula, Rajda, Cecília, Rejdak, Konrad, Ricny, Jan, Ripova, Daniela, Rosengren, Lars, Ruggieri, Maddalena, Schraen, Susanna, Shaw, Gerry, Sindic, Christian, Siva, Aksel, Stigbrand, Torgny, Stonebridge, Iva, Topcular, Baris, Trojano, Maria, Tumani, Hayrettin, Twaalfhoven, Harry A M, Vécsei, László, Van Pesch, Vincent, Vanderstichele, Hugo, Vedeler, Christian, Verbeek, Marcel M, Villar, Luisa Maria, Weissert, Robert, Wildemann, Brigitte, Yang, Cui, Yao, Karen, Teunissen, Charlotte E, UCL - SSS/IONS/CEMO - Pôle Cellulaire et moléculaire, UCL - (SLuc) Service de neurologie, Petzold, Axel, Altintas, Ayse, Andreoni, Laura, Bartos, Ales, Berthele, Achim, Blankenstein, Marinus A, Buee, Luc, Castellazzi, Massimiliano, Cepok, Sabine, Comabella, Manuel, Constantinescu, Cris S, Deisenhammer, Florian, Deniz, Gunnur, Erten, Gaye, Espiño, Mercedes, Fainardi, Enrico, Franciotta, Diego, Freedman, Mark S, Giedraitis, Vilmantas, Gilhus, Nils Erik, Giovannoni, Gavin, Glabinski, Andrzej, Grieb, Pawel, Hartung, Hans-Peter, Hemmer, Bernhard, Herukka, Sanna-Kaisa, Hintzen, Rogier, Ingelsson, Martin, Jackson, Samuel, Jacobsen, Steve, Jafari, Naghmeh, Jalosinski, Marcin, Jarius, Sven, Kapaki, Elisabeth, Kieseier, Bernd C, Koel-Simmelink, Marleen J A, Kornhuber, Johannes, Kuhle, Jens, Kurzepa, Jacek, Lalive, Patrice H, Lannfelt, Lars, Lehmensiek, Vera, Lewczuk, Piotr, Livrea, Paolo, Marnetto, Fabiana, Martino, Davide, Menge, Til, Norgren, Niklas, Papuć, Eva, Paraskevas, George P, Pirttilä, Tuula, Rajda, Cecília, Rejdak, Konrad, Ricny, Jan, Ripova, Daniela, Rosengren, Lars, Ruggieri, Maddalena, Schraen, Susanna, Shaw, Gerry, Sindic, Christian, Siva, Aksel, Stigbrand, Torgny, Stonebridge, Iva, Topcular, Baris, Trojano, Maria, Tumani, Hayrettin, Twaalfhoven, Harry A M, Vécsei, László, Van Pesch, Vincent, Vanderstichele, Hugo, Vedeler, Christian, Verbeek, Marcel M, Villar, Luisa Maria, Weissert, Robert, Wildemann, Brigitte, Yang, Cui, Yao, Karen, and Teunissen, Charlotte E
- Abstract
This multi-center validation study identified the lack of preparation of accurate and consistent protein standards as the main reason for a poor inter-laboratory CV. This issue is also relevant to other protein biomarkers based on this type of assay and will need to be solved in order to achieve an acceptable level of analytical accuracy. The raw data of this study is available online.
- Published
- 2010
11. Evaluation of the "15th Practical Flow Cytometry Course"
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Cinar, Suzan, primary, Erten, Gaye, additional, Aktas Cetin, Esin, additional, Bilgic Gazioglu, Sema, additional, Kucuksezer, Umut Can, additional, Gurol, Ali Osman, additional, Yanikkaya Demirel, Gulderen, additional, and Deniz, Gunnur, additional
- Published
- 2013
- Full Text
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12. Osteoprotegerin/RANKL Axis and Progression of Coronary Artery Calcification in Hemodialysis Patients
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Ozkok, Abdullah, primary, Caliskan, Yasar, additional, Sakaci, Tamer, additional, Erten, Gaye, additional, Karahan, Gonca, additional, Ozel, Alper, additional, Unsal, Abdulkadir, additional, and Yildiz, Alaattin, additional
- Published
- 2012
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13. The Effects of Piroxicam and Deracoxib on Canine Mammary Tumour Cell Line
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Üstün Alkan, Fulya, primary, Üstüner, Oya, additional, Bakırel, Tülay, additional, Çınar, Suzan, additional, Erten, Gaye, additional, and Deniz, Günnur, additional
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- 2012
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14. Differences in lymphocyte subpopulation count and function in cord, maternal and adult blood
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Akdeniz, Nilgun, primary, Aktas, Esin, additional, Erten, Gaye, additional, Bilgic, Sema, additional, and Deniz, Gunnur, additional
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- 2011
- Full Text
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15. Neurofilament ELISA validation
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Petzold, Axel, primary, Altintas, Ayse, additional, Andreoni, Laura, additional, Bartos, Ales, additional, Berthele, Achim, additional, Blankenstein, Marinus A., additional, Buee, Luc, additional, Castellazzi, Massimiliano, additional, Cepok, Sabine, additional, Comabella, Manuel, additional, Constantinescu, Cris S., additional, Deisenhammer, Florian, additional, Deniz, Gunnur, additional, Erten, Gaye, additional, Espiño, Mercedes, additional, Fainardi, Enrico, additional, Franciotta, Diego, additional, Freedman, Mark S., additional, Giedraitis, Vilmantas, additional, Gilhus, Nils Erik, additional, Giovannoni, Gavin, additional, Glabinski, Andrzej, additional, Grieb, Pawel, additional, Hartung, Hans-Peter, additional, Hemmer, Bernhard, additional, Herukka, Sanna-Kaisa, additional, Hintzen, Rogier, additional, Ingelsson, Martin, additional, Jackson, Samuel, additional, Jacobsen, Steve, additional, Jafari, Naghmeh, additional, Jalosinski, Marcin, additional, Jarius, Sven, additional, Kapaki, Elisabeth, additional, Kieseier, Bernd C., additional, Koel-Simmelink, Marleen J.A., additional, Kornhuber, Johannes, additional, Kuhle, Jens, additional, Kurzepa, Jacek, additional, Lalive, Patrice H., additional, Lannfelt, Lars, additional, Lehmensiek, Vera, additional, Lewczuk, Piotr, additional, Livrea, Paolo, additional, Marnetto, Fabiana, additional, Martino, Davide, additional, Menge, Til, additional, Norgren, Niklas, additional, Papuć, Eva, additional, Paraskevas, George P., additional, Pirttilä, Tuula, additional, Rajda, Cecília, additional, Rejdak, Konrad, additional, Ricny, Jan, additional, Ripova, Daniela, additional, Rosengren, Lars, additional, Ruggieri, Maddalena, additional, Schraen, Susanna, additional, Shaw, Gerry, additional, Sindic, Christian, additional, Siva, Aksel, additional, Stigbrand, Torgny, additional, Stonebridge, Iva, additional, Topcular, Baris, additional, Trojano, Maria, additional, Tumani, Hayrettin, additional, Twaalfhoven, Harry A.M., additional, Vécsei, László, additional, Van Pesch, Vincent, additional, Vanderstichele, Hugo, additional, Vedeler, Christian, additional, Verbeek, Marcel M., additional, Villar, Luisa Maria, additional, Weissert, Robert, additional, Wildemann, Brigitte, additional, Yang, Cui, additional, Yao, Karen, additional, and Teunissen, Charlotte E., additional
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- 2010
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16. Relationship between CD107a expression and cytotoxic activity
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Aktas, Esin, primary, Kucuksezer, Umut Can, additional, Bilgic, Sema, additional, Erten, Gaye, additional, and Deniz, Gunnur, additional
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- 2009
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17. Regulatory NK Cells Suppress Antigen-Specific T Cell Responses
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Deniz, Gunnur, primary, Erten, Gaye, additional, Kücüksezer, Umut Can, additional, Kocacik, Dilara, additional, Karagiannidis, Christian, additional, Aktas, Esin, additional, Akdis, Cezmi A., additional, and Akdis, Mubeccel, additional
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- 2008
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18. The Effects of Piroxicam and Deracoxib on Canine Mammary Tumour Cell Line.
- Author
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Alkan, Fulya Üstün, Üstüner, Oya, Bakirel, Tülay, Çınar, Suzan, Erten, Gaye, and Deniz, Günnur
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PIROXICAM ,ANTI-inflammatory agents ,MAMMARY gland tumors ,CANCER cells ,CELL lines ,LABORATORY dogs ,VETERINARY medicine ,DRUG efficacy - Published
- 2012
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19. Astımda Periferik Lenfosit Aktivasyonu ve RANTES Düzeyleri.
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Erten, Gaye, Müsellim, Benan, Tutluoğlu, Bülent, and Deniz, Günner
- Subjects
- *
BRONCHIAL diseases , *ASTHMA , *LYMPHOCYTES , *T cells , *CARCINOGENESIS - Abstract
Aim: Bronchial mucosal inflammation is one of the major characteristics of atopic asthma. Th2 activation and the related cytokine profile, eosinophil activation and infiltration play the main role in the pathogenesis of atopic asthma. The aim of this study was to demonstrate the activation and RANTES (regulated on activation, normal T-cell expressed and presumably secreted) expression of peripheral blood lymphocytes of non-atopic and atopic asthmatic patients. Materials and Methods: CD3, CD4, CD8, CD16, CD23, CD25, CD45RA and CD45RO expressions were determined in 22 asthma patients and 20 healthy control subjects by flow cytometry, and RANTES levels were measured by ELISA. Statistical analysis was performed by using Student's t and Mann-Whitney U test. Results: CD45RO and CD23 expressions were significantly higher in asthma patients compared to control subjects (P = 0.009 and P = 0.004, respectively), and similarly, an increase in CD25 expression was also shown in asthmatics (P = 0.004). However, there was no difference in RANTES secretion of peripheral blood lymphocytes in asthmatics compared to the control group (P = 0.08). Atopic and non-atopic asthmatics (13 vs. 9) were compared, and atopic asthmatics showed significant increase in CD25 and CD23 expressions (P = 0.009 and P = 0.02, respectively). Conclusions: These changes in the activation state of T-cells suggest an active role of T lymphocytes in the pathogenesis of atopic and non-atopic asthma. [ABSTRACT FROM AUTHOR]
- Published
- 2008
20. Peripheral blood lymphocyte activation and RANTES levels in asthma
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Erten, Gaye, Muesellim, Benan, Tutluoglu, Buelent, Gemicioglu, Bilun, and Gunnur Deniz
21. T cell chemokine receptors and cytokines in asthma.
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Cevhertaş, Laçin, Yılmaz, Abdullah, Tahralı, Ilhan, Küçüksezer, Umut Can, Deniz, Günnur, Erten, Gaye, and Gemicioğlu, Bilun
- Subjects
T cells ,ASTHMA ,CELL surface antigens ,CD4 antigen ,CD8 antigen ,INTERLEUKIN-4 ,CYTOKINES - Abstract
T cell subgroups are known to play important roles in the pathogenesis of allergic and non-allergic asthma. In this study the expression of the surface markers including CD4, CD8, CCR3, CCR4, CXCR3 and intracytoplasmic cytokine (IFN-g, IL-4 and IL-10) profiles of peripheral blood mononuclear cells in stimulated (PMA/ionomicin) and unstimulated conditions were investigated by flow cytometry. Stimulated Th cells increased their CXCR3+ IFN-g, CXCR3+ IL-4, CCR3+ IFN-g, CCR3+ IL-4, CCR3+ IL-10, CCR4+ IL-10 expressions in allergic asthma; but CXCR3+ IFN-g, CXCR3+ IL-4, CXCR3+ IL-10, CCR3+ IFN-g, CCR3+ IL-4 and CCR3+ IL-10 expression in non-allergic asthma. Cytotoxic T cells in allergic asthma expressed higher CCR3+ IFN-g, CCR3+ IL-4, CCR3+ IL-10, CCR4+ IL-4, CCR4+ IL-10 after stimulation. On the other hand CD8+ CXCR3+ IFN-g and CD8+ CXCR3+ IL-10 expressions increased in non-allergic asthma under the same stimulation. In our study T cells tended to elevate their intracellular cytokine levels in all study groups under both conditions. Comparing patients with allergic and non-allergic asthma, CCR3+ and CCR4+ Type 2 helper T cells produced higher amounts of IL-10 compared to Type 1 CD4+ CXCR3+ cells in allergic asthma. CD4+ CCR4+ cells expressed higher IFN-g and IL-10 levels without any stimulation in patients with allergic and non-allergic asthma respectively. In summary, our results indicate the role of T cells in the pathogenesis of allergic and non-allergic asthma, but also the complexity of the disease which can not be explained by using only the simple Th1/Th2 paradigma. [ABSTRACT FROM AUTHOR]
- Published
- 2016
22. PAI-1 and TNF-α profiles of adipose tissue in obese cardiovascular disease patients.
- Author
-
Bilgic Gazioglu S, Akan G, Atalar F, and Erten G
- Subjects
- Aged, Biomarkers analysis, Coronary Artery Disease diagnosis, Coronary Artery Disease genetics, Humans, Middle Aged, Obesity diagnosis, Obesity genetics, Plasminogen Activator Inhibitor 1 blood, Plasminogen Activator Inhibitor 1 genetics, RNA, Messenger genetics, Tumor Necrosis Factor-alpha blood, Tumor Necrosis Factor-alpha genetics, Up-Regulation, Adipose Tissue chemistry, Coronary Artery Disease metabolism, Obesity metabolism, Plasminogen Activator Inhibitor 1 analysis, Tumor Necrosis Factor-alpha analysis
- Abstract
Unlabelled: Obesity as a leading preventable cause of death worldwide is closely linked to cardiovascular disease (CVD). Plasma plasminogen activator inhibitor (PAI)-1, a potent inhibitor of plasminogen activation and fibrinolysis, is increased in many clinical situations associated with high incidence of CVD. In the obesity-linked elevation of PAI-1, evidence points to TNF-α as an important regulator of PAI-1 expression in adipose tissue., Background: This study aims to evaluate mediastinal PAI-1 and TNF-α mRNA levels in adipose tissues (AT) and compare serum levels in obesity with and without coronary artery disease (CAD)., Patients and Methods: Obese patients with (n=37) and without CAD (n=20) were included in the study., Results: The serum levels of PAI-1 and TNF-α were significantly higher in obese patients with CAD compared to obese patients without CAD. PAI-1 mRNA expression was significantly increased in mediastinal adipose tissue (MAT) of obese patients with CAD compared to those without CAD, TNF-α mRNA expressions were found to be higher in EAT (epicardial AT), MAT and SAT (subcutaneous AT) of obese patients with CAD., Conclusions: The study demonstrated a close direct relationship between TNF-α and PAI-1. PAI-1 mRNA expression strongly correlated positively with serum TNF-α in MAT, and TNF-α expressions with PAI-1 serum levels.
- Published
- 2015
23. The effects of piroxicam and deracoxib on canine mammary tumour cell line.
- Author
-
Ustün Alkan F, Ustüner O, Bakırel T, Cınar S, Erten G, and Deniz G
- Subjects
- Animals, Anti-Inflammatory Agents, Non-Steroidal pharmacology, Antineoplastic Combined Chemotherapy Protocols pharmacology, Apoptosis drug effects, Cell Cycle drug effects, Cell Line, Tumor, Cell Survival drug effects, Cyclooxygenase Inhibitors pharmacology, Dogs, Dose-Response Relationship, Drug, Female, Piroxicam administration & dosage, Sulfonamides administration & dosage, Mammary Neoplasms, Animal drug therapy, Piroxicam pharmacology, Sulfonamides pharmacology
- Abstract
Cyclooxygenase (COX) inhibitors, already widely used for the treatment of pain and inflammation, are considered as promising compounds for the prevention and treatment of neoplasia. The aim of our study was to determine the direct antiproliferative effects of nonsteroidal anti-inflammatory drugs (NSAIDs), piroxicam and deracoxib, at a variety of concentrations as both single and combined treatments on canine mammary carcinoma cell line CMT-U27 and to understand the mechanisms of cell death. MTT assay was performed to determine cell viability, and flow cytometric analyses were performed to evaluate apoptosis and cell cycle alterations. Significant decrease in cell viability was observed at high concentrations of piroxicam and deracoxib in both single and combined treatments after 72 h incubation. Combined treatment produced a significantly greater inhibition than that caused by either agent alone. Also apoptotic cell number was increased by both drugs at the cytotoxic concentrations. However, concomitant treatment of cells with piroxicam and deracoxib resulted in significant induction of apoptosis at lower concentrations and accumulation of cells in the G₀/G₁ phase. Significant cytotoxic effects exhibited by the combination of piroxicam and deracoxib against canine mammary carcinoma cells in vitro suggest an attractive approach for the treatment of canine mammary carcinoma.
- Published
- 2012
- Full Text
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