35 results on '"Ziyade, Nihan"'
Search Results
2. Postmortem pathological changes in extrapulmonary organs in SARS-CoV-2 rt-PCR–positive cases: a single-center experience
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Bugra, Aytul, Das, Taner, Arslan, Murat Nihat, Ziyade, Nihan, and Buyuk, Yalcın
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- 2022
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3. Postmortem diagnosis of cytomegalovirus and accompanying other infection agents by real-time PCR in cases of sudden unexpected death in infancy (SUDI)
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Yagmur, Gulhan, Ziyade, Nihan, Elgormus, Neval, Das, Taner, Sahin, M. Feyzi, Yildirim, Muzaffer, Ozgun, Ayse, Akcay, Arzu, Karayel, Ferah, and Koc, Sermet
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- 2016
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4. SARS-CoV-2 Pozitif Olgularda Dalak ve Bölgesel Lenf Düğümlerinde Ölüm Sonrası Histopatolojik Bulgular
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BUĞRA, Aytül, DAŞ, Taner, KARA, Erdoğan, ZİYADE, Nihan, and BUYUK, Yalcin
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SARS-CoV-2 ,dalak ,lenf nodu ,otopsi ,forensic patoloji ,Adli Tıp ,spleen ,lymph node ,autopsy ,forensic pathology ,Legal Medicine - Abstract
Amaç: SARS-CoV-2 virüsü dalak ve lenf düğümlerini etkileyebilir. Bu çalışmada bölgesel lenf nodları ve dalakta histomorfolojik değişiklikleri, immünohistokimyasal bulguları ve gerçek zamanlı polimeraz zincir reaksiyonu testi (rt-PCR) sonuçlarını değerlendirmeyi amaçladık. Yöntemler: SARS-Cov-2 pozitif olan 12 postmortem nazofaringeal sürüntü vakasının bölgesel lenf düğümleri ve dalak örnekleri değerlendirildi. Üst paratrakeal, alt paratrakeal ve hiler lenf nodları ve dalak örnekleri ışık mikroskobu altında H&E boyalı kesitler ve immünohistokimyasal olarak boyanmış kesitler ile incelendi.Bulgular: Dokuz olguda yaygın alveoler hasar görüldü. Konjesyon, immünoblastik ve plazmablastik hücrelerin varlığı, subkapsüler sinüslerin genişlemesi, apoptotik hücrelerin varlığı ve sinüs histiositozu en sık görülen değişikliklerdi. Dört olguda üst paratrakeal lenf düğümlerinde, yedi olguda alt paratrakeal lenf düğümlerinde ve beş olguda hiler lenf düğümlerinde SARS-CoV-2 rt-PCR testi pozitifti. Beyaz pulpa atrofisi ve kırmızı pulpa kanaması dalakta en sık görülen bulgulardı. Dalakta dört vakada SARS-CoV-2 rt-PCR testi pozitifti.Sonuç: SARS-CoV-2 virüsü lenf düğümlerine ve dalağa yayılarak dokuları tahrip edebilir., Objective: SARS-CoV-2 virus can affect the spleen and lymph nodes. In this study, we aimed to evaluate the histomorphological changes, immunohistochemical findings and real-time polymerase chain reaction test (rt-PCR) results in regional lymph nodes and spleen. Methods: The regional lymph nodes and spleen samples of 12 cases of postmortem nasopharyngeal swabs that were positive for SARS-Cov-2 were evaluated. Upper paratracheal, lower paratracheal, and hilar lymph nodes and spleen samples were examined under a light microscope with H&E stained sections and immunohistochemically stained sections. Results: Diffuse alveolar damage was seen in nine cases. Congestion, presence of immunoblastic and plasmablastic cells, expansion of subcapsular sinuses, presence of apoptotic cells, and sinus histiocytosis were the most common changes. The SARS-CoV-2 rt-PCR test was positive in four cases in the upper paratracheal lymph nodes, in seven cases in the lower paratracheal lymph nodes, and in five cases in the hilar lymph nodes. White pulp atrophy and red pulp hemorrhage were the most common findings in the spleen. The SARS-CoV-2 rt-PCR test was positive in four cases in the spleen. Conclusion: SARS-CoV-2 virus can spread to the lymph nodes and spleen and destroy the tissues.
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- 2022
5. Evaluation of postmortem pathological changes in the lung in SARS-CoV-2 RT-PCR positive cases
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DAŞ, Taner, primary, BUĞRA, Aytül, additional, ARSLAN, Murat Nihat, additional, ZİYADE, Nihan, additional, and BUYUK, Yalcin, additional
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- 2021
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6. Postmortem pathological changes in extrapulmonary organs in SARS-CoV-2 rt-PCR–positive cases: a single-center experience
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Bugra, Aytul, primary, Das, Taner, additional, Arslan, Murat Nihat, additional, Ziyade, Nihan, additional, and Buyuk, Yalcın, additional
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- 2021
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7. COVID-19 autopsies of Istanbul
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Arslan, Murat Nihat, primary, Büyük, Yalçın, additional, Ziyade, Nihan, additional, Elgörmüş, Neval, additional, Şirin, Gözde, additional, Çoban, İsmail, additional, Gökşen, Muhammed Emin, additional, Daş, Taner, additional, and Akçay, Arzu, additional
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- 2021
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8. Hepatitis C Virus Genotype Distribution in Forensic Cases
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Ziyade, Nihan, primary, Yanılmaz, Özgür, additional, Elgörmüş, Neval, additional, and Arslan, Murat Nihat, additional
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- 2020
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9. Value of washed sputum samples in children with lower respiratory tract infections
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Ziyade, Nihan, Aksu, Burak, and Yagci, Aysegul
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- 2009
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10. Evaluation of 2015-2016 MOTAKK HBV DNA and HCV RNA External Quality Assessment National Program Results
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Karatayli, Ersin, Soydemir, Ege, Aksoy, Zeynep Busra, Kizilpinar, Mehtap, Altay Kocak, Aylin, Karatayli, Senem Ceren, Yurdcu, Esra, Yildirim, Umut, Guriz, Haluk, Bozdayi, Gulendam, Yurdaydin, Cihan, Ilhan, Osman, Yildirim, Yasin, Bozdayi, A. Mithat, Oguz, Acelya Yalcintas, Baris, Ahmet, Alp, Alpaslan, Aksozek, Alper, Sayiner, Arzu, Karagul, Aydan, Ordu, Aylin, Istanbullu, Aye, Otlu, Baris, Aridogan, Buket, Aksu, Burak, Buruk, C. Kurtulus, Karahan, Ceren, Guney, Cakir, Toksoz, Devrim, Yildirim, Dilara, Colak, Dilek, Daglar, Duygu Eren, Findik, Duygu, Kas, Elif, Caliskan, Emel, Zeyrek, Fadile Yildiz, Arslan, Fatma, Demir, Feyza, Milletli, Fikriye, Kibar, Filiz, Ozdincer, Furkan, Dundar, Gulnur, Arslan, Hande, Agca, Harun, Aliskan, Hikmet Eda, Guducuoglu, Huseyin, Fidan, Isil, Akyar, Isin, Afsar, Ilhan, Kaleli, Ilknur, Donmez, Ismail, Yanik, Kemalettin, Midilli, Kenan, Cubukcu, Kivanc, Ozdemir, Mehmet, Acar, Melek, Yalinay, Meltem, Kuskucu, Mert Ahmet, Bakici, Mustafa Zahir, Aydin, Neriman, Yilmaz, Neziha, Ceken, Nihan, Ziyade, Nihan, Yilmaz, Nisel, Ozgumus, Osman Birol, Gitmisoglu, Ozlem, Demirgan, Recep, Kesli, Recep, Guckan, Ridvan, Sertoz, Ruchan, Akgun, Sadik, Aksaray, Sebahat, Tezcan, Seda, Kaygusuz, Sedat, Gokahmetoglu, Selma, Mese, Sevim, Bayik, Seyit Ahmet, Akcali, Sinem, Gurcan, Saban, Karsligil, Tekin, Us, Tercan, Ozekinci, Tuncer, Pilgir, Tulin, Aslan, Ugur, Dinc, Ugur, Coskun, Umut Safiye Say, Cetinkol, Yeliz, Keskin, Yusuf, Ayaydin, Zeynep, Toraman, Zulal Asci, [Karatayli, Ersin -- Kizilpinar, Mehtap -- Altay Kocak, Aylin -- Karatayli, Senem Ceren -- Yurdcu, Esra -- Bozdayi, A. Mithat] Ankara Univ, Hepatol Inst, Ankara, Turkey -- [Soydemir, Ege -- Aksoy, Zeynep Busra] Ankara Univ, Biotechnol Inst, Ankara, Turkey -- [Altay Kocak, Aylin] Baskent Univ, Dept Med Microbiol, Fac Med, Ankara, Turkey -- [Yildirim, Umut] Tomurcuk Technol, Cyberpk, Ankara, Turkey -- [Guriz, Haluk] Ankara Univ, Fac Med, Cebeci Cent Lab, Ankara, Turkey -- [Bozdayi, Gulendam] Gazi Univ, Dept Med Microbiol, Fac Med, Ankara, Turkey -- [Yurdaydin, Cihan] Ankara Univ, Div Gastroenterol, Fac Med, Ankara, Turkey -- [Ilhan, Osman] Ankara Univ, Div Hematol, Fac Med, Ankara, Turkey -- [Yildirim, Yasin] Ankara Univ, Therapeut Apheresis Ctr, Div Hematol, Fac Med, Ankara, Turkey -- [Oguz, Acelya Yalcintas] Iontek Lab, Istanbul, Turkey -- [Baris, Ahmet] RTA Lab, Kocaeli, Turkey -- [Alp, Alpaslan] Hacettepe Univ, Hastaneleri Merkez Lab, Ankara, Turkey -- [Aksozek, Alper] Mugla Sitki Kocman Univ EAH, Mikrobiyoloji Lab, Mugla, Turkey -- [Sayiner, Arzu] Dokuz Eylul Univ, Tip Fak, Tibbi Mikrobiyoloji AD, Izmir, Turkey -- [Karagul, Aydan] Antalya Egitim & Arastirma Hastanesi, Antalya, Turkey -- [Ordu, Aylin] Sisli Florence Nightingale Hastanesi, Mol Mikrobiyoloji Lab, Istanbul, Turkey -- [Istanbullu, Aye] Medipol Hastanesi, Istanbul, Turkey -- [Otlu, Baris] Malatya Univ, Tibbi Mikrobiyoloji AD, Malatya, Turkey -- [Aridogan, Buket] Suleyman Demirel Univ, Tibbi Mikrobiyoloji AD, Isparta, Turkey -- [Aksu, Burak] Marmara Univ, Tip Fak, Tibbi Mikrobiyoloji AD, Istanbul, Turkey -- [Buruk, C. Kurtulus] KATU, Tip Fak, Tibbi Mikrobiyoloji AD, Trabzon, Turkey -- [Karahan, Ceren] Ankara Univ, Tip Fak, Ibn I Sina Hastanesi Merkez Mikrobiyoloji Lab, Ankara, Turkey -- [Guney, Cakir] Ozel SYNLAB Merkezi Lab, Ankara, Turkey -- [Toksoz, Devrim] Referans Klin Lab, Istanbul, Turkey -- [Yildirim, Dilara] Sivas Numune Hastanesi, Mikrobiyoloji Lab, Sivas, Turkey -- [Colak, Dilek] Akdeniz Univ Hastanesi, Merkez Lab, Antalya, Turkey -- [Daglar, Duygu Eren] Aydin Devlet Hastanesi, Tibbi Mikrobiyoloji Lab, Aydin, Turkey -- [Findik, Duygu -- Aslan, Ugur] Selcuk Univ, Tibbi Mikrobiyoloji Lab, Tip Fak, Konya, Turkey -- [Kas, Elif] Ankara 2 Bolge KHB Genel Sekreterligi, Ankara, Turkey -- [Caliskan, Emel] Duzce Univ, Tip Fak, Tibbi Mikrobiyoloji AD, Duzce, Turkey -- [Zeyrek, Fadile Yildiz] Harran Univ, Tip Fak, Tibbi Mikrobiyoloji AD, Sanliurfa, Turkey -- [Arslan, Fatma] Kayseri Egitim & Arastirma Hastanesi, Kayseri, Turkey -- [Demir, Feyza] SB SBU Van EAH Mikrobiyoloji Bolumu, Van, Turkey -- [Milletli, Fikriye] Ahi Evran Univ, EAH Mikrobiyoloji Lab, Kirsehir, Turkey -- [Kibar, Filiz] Cukurova Univ, Tip Fak, Tibbi Mikrobiyoloji AD, Adana, Turkey -- [Ozdincer, Furkan] Gelisim Tip Lab, Istanbul, Turkey -- [Dundar, Gulnur] Ctr Lab Mol Mikrobiyoloji, Istanbul, Turkey -- [Arslan, Hande] Baskent Univ, Enfeksiyon Hastaliklari & Klin Mikrobiyoloji AD, Ankara, Turkey -- [Agca, Harun] Uludag Univ, Tip Fak, Mikrobiyoloji AD, Bursa, Turkey -- [Aliskan, Hikmet Eda] Baskent Univ, Tibbi Mikrobiyoloji AD, Adana Uygulama & Arastirma Merkezi Mikrobiyoloji, Adana, Turkey -- [Guducuoglu, Huseyin] Yuzuncu Yil Univ, Tip Fak, Tibbi Mikrobiyoloji AD, Van, Turkey -- [Fidan, Isil] Gazi Univ, Tip Fak, Tibbs Mikrobiyoloji AD, Ankara, Turkey -- [Akyar, Isin] Acibadem Labmed Mikrobiyoloji Lab, Istanbul, Turkey -- [Afsar, Ilhan] IKCU Ataturk EAH Tibbi Mikrobiyoloji Lab, Izmir, Turkey -- [Kaleli, Ilknur] Pamukkale Univ, Tibbi Mikrobiyoloji Merkez Lab, Denizli, Turkey -- [Donmez, Ismail] Usak Devlet Hastanesi Mikrobiyoloji Lab, Usak, Turkey -- [Yanik, Kemalettin] Ondokuz Mayis Univ, Tip Fak, Tibbi Mikrobiyoloji AD, Samsun, Turkey -- [Midilli, Kenan -- Kuskucu, Mert Ahmet] Istanbul Univ, Cerrahpa Tip Fak, Tibbi Mikrobiyoloji AD, Istanbul, Turkey -- [Cubukcu, Kivanc] Trabzon Kanuni EAH Klin Mikrobiyoloji Lab, Trabzon, Turkey -- [Ozdemir, Mehmet] Necmettin Erbakan Univ Hastanesi, Tibbi Mikrobiyoloji AD, Konya, Turkey -- [Acar, Melek] Samsun Egitim & Arastirma Hastanesi, Mikrobiyoloji Lab, Samsun, Turkey -- [Yalinay, Meltem] Gazi Univ, Tip Fak, Tibbi Mikrobiyoloji AD, Ankara, Turkey -- [Bakici, Mustafa Zahir] Cumhuriyet Univ, Uygulama & Arastirma Hastanesi, Mikrobiyoloji Lab, Sivas, Turkey -- [Aydin, Neriman] Adnan Menderes Univ, Tip Fak, Tibbi Mikrobiyoloji AD, Aydin, Turkey -- [Yilmaz, Neziha] Bozok Univ, Mikrobiyoloji AD, Yozgat, Turkey -- [Ceken, Nihan] Balikesir Devlet Hastanesi, Mikrobiyoloji Lab, Balikesir, Turkey -- [Ziyade, Nihan] Istanbul Adli Tip Kurumu Baskanligi Postmortem Mi, Istanbul, Turkey -- [Yilmaz, Nisel] Tepecik Egitim & Arastirma Hastanesi, Tibbi Mikrobiyoloji Lab, Izmir, Turkey -- [Ozgumus, Osman Birol] Recep Tayyip Erdogan Univ, Tip Fak, Tibbi Mikrobiyoloji AD, Rize, Turkey -- [Gitmisoglu, Ozlem] Necip Fazil Sehir Hastanesi, Mikrobiyoloji Lab, Kahramanmaras, Turkey -- [Demirgan, Recep] Anatolia Genet Lab, Istanbul, Turkey -- [Kesli, Recep] Afyon Kocatepe Univ, Tibbi Mikrobiyoloji AD, Afyon, Turkey -- [Guckan, Ridvan] Amasya Univ, Sabuncuoglu Serefeddin EAH, Mikrobiyoloji Klin, Amasya, Turkey -- [Sertoz, Ruchan] Ege Univ, Tip Fak, Tibbi Mikrobiyoloji AD, Izmir, Turkey -- [Akgun, Sadik] Adiyaman Univ, EAH Tibbi Mikrobiyoloji Lab, Adiyaman, Turkey -- [Aksaray, Sebahat] Haydarpasa Numune Hastanesi, Tibbi Mikrobiyoloji Lab, Istanbul, Turkey -- [Tezcan, Seda] Mersin Univ, Tip Fak, Tibbi Mikrobiyoloji AD, Mersin, Turkey -- [Kaygusuz, Sedat] Kirikkale Univ, Enfeksiyon Hastaliklan & Klin Mikrobiyoloji AD, Kirikkale, Turkey -- [Gokahmetoglu, Selma] Erciyes Univ, Tip Fak, Mikrobiyoloji AD, Kayseri, Turkey -- [Mese, Sevim] Istanbul Univ, Istanbul Tip Fak, Tibbi Mikrobiyoloji AD, Istanbul, Turkey -- [Bayik, Seyit Ahmet] Adana Numune EAH, Tibbi Mikrobiyoloji Lab, Adana, Turkey -- [Akcali, Sinem] Celal Bayar Univ, Tip Fak, Tibbi Mikrobiyoloji AD, Manisa, Turkey -- [Gurcan, Saban] Trakya Univ, Tip Fak, Tibbi Mikrobiyoloji AD, Tekirdag, Turkey -- [Karsligil, Tekin] Gaziantep Univ, Tibbi Mikrobiyoloji AD, Gaziantep, Turkey -- [Us, Tercan] Eskisehir Osmangazi Univ, Tibbi Mikrobiyoloji AD, Eskisehir, Turkey -- [Ozekinci, Tuncer] Dicle Univ, Tip Fak, Tibbi Mikrobiyoloji AD, Diyarbakir, Turkey -- [Pilgir, Tulin] Viromed Lab, Ankara, Turkey -- [Dinc, Ugur] Corlu Devlet Hastanesi, Mikrobiyoloji Lab, Corlu, Turkey -- [Coskun, Umut Safiye Say] TOKAT GOP Univ Hastanesi, Mikrobiyoloji Lab, Tokat, Turkey -- [Cetinkol, Yeliz] Ordu Univ EAH, Tibbi Mikrobiyoloji Lab, Ordu, Turkey -- [Keskin, Yusuf] Cukurova Devlet Hastanesi, Mikrobiyoloji Lab, Adana, Turkey -- [Ayaydin, Zeynep] Gazi Yasargil EAH, Mikrobiyoloji Lab, Diyarbakir, Turkey -- [Toraman, Zulal Asci] Firat Univ, Tip Fak, Tibbi Mikrobiyoloji AD, Elazig, Turkey, Sayiner, Ayca -- 0000-0001-6750-2353, Yurdcu, Esra -- 0000-0002-1441-6408, Kibar, Filiz -- 0000-0003-2983-2399, Otlu, Baris -- 0000-0002-6220-0521, BOZDAYI, ABDURRAHMAN MITHAT -- 0000-0002-2785-1804, Ondokuz Mayıs Üniversitesi, Çukurova Üniversitesi, Tıp Fakültesi, Kırşehir Ahi Evran Üniversitesi, Tıp Fakültesi, Temel Tıp Bilimleri, Tıbbi Mikrobiyoloji ABD, İç Hastalıkları, Ege Üniversitesi, and Kırıkkale Üniversitesi
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Quality Control ,Microbiology (medical) ,Hepatitis B virus ,medicine.medical_specialty ,Turkey ,Standardization ,HCV RNA ,Hepacivirus ,Microbiology ,Molecular microbiology ,CMV Negative ,External quality assessment ,Proficiency testing ,Humans ,Medicine ,Medical physics ,Hepatitis-B ,General Immunology and Microbiology ,Clinical Laboratory Techniques ,business.industry ,Tests ,Quality control ,Hepatitis B ,Hepatitis C ,external quality control ,viral load ,Clinical Microbiology ,Infectious Diseases ,HBV DNA ,DNA, Viral ,HIV-1 ,Conformity assessment ,Proficiency ,RNA, Viral ,Real-Time Pcr ,business ,Viral load - Abstract
WOS: 000454987700003, PubMed ID: 30522421, MOTAKK, as a national external quality control program has been launched to evaluate the molecular detection of viral infections including HBV DNA and HCV RNA in molecular microbiology diagnostic laboratories in Turkey. This program is prepared in compliance with ISO 17043:2010 (Conformity assessment general requirements for proficiency testing) standards, and aims to take the place of external quality control programs from abroad, contributing to standardization and accuracy of molecular diagnostic tests in our country. The aim of this study was to evaluate 2015 and 2016 results of the MOTAKK External Quality Control Program for HBV DNA and HCV RNA viral load. The calls were announced on the web page of MOTAKK (www.motakk.org). The quality control samples were sent to participating laboratories in 2015 and 2016. Main stocks were prepared from patients with chronic hepatitis B and C who had viral load detection with reference methods according to WHO reference materials for viral load studies to improve quality control sera. From these main stocks, samples with different viral loads were prepared from dilutions of plasma with HBV, HCV, HAV, HIV, Parvovirus B19 and CMV negative serologic markers. Quality control samples were sent to the participating laboratories along with the negative samples in the cold chain. The laboratories accomplished the related tests within 2-3 weeks and entered their results on the MOTAKK web page. These results were analysed according to ISO 13528 (Statistical methods for use in proficiency testing by interlaboratory comparison) and scoring reports were created by a software developed by MOTAKK and sent to participating labs. Each laboratory evaluated their own results in comparison with the other laboratory results, reassessed the tests via observing the distance from the mean result and the reference values. The number of laboratories participating in the HBV DNA and HCV RNA external quality control program was 70-73 in 2015-2016. Participants were able to comply with the program tools, registering, entering results and receiving the results reports problem. In HBV panel, 72.6-89.1% and 84.7-90.3% of the participant laboratories were in 1 standard deviation (SD) in 2015-2016, respectively. In HCV panel, 70.8-89.1% and 84.7-90.3% of the participant laboratories were in 1 SD in 2015-2016, respectively. A national external quality control program for HBV DNA and HCV RNA in Turkey has been prepared for the first time with this project and implemented successfully. All the data provided in the MOTAKK external quality control program final report, compensate all the data provided by the quality control program final reports from abroad; additionally, the report allows comparison of used technologies and commercial products.
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- 2018
11. Evaluation of postmortem pathological changes in the lung in SARSCoV-2 RT-PCR positive cases.
- Author
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Daş, Taner, Buğra, Aytül, Arslan, Murat Nihat, Ziyade, Nihan, and Büyük, Yalçın
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AUTOPSY ,LUNG diseases ,COVID-19 ,ADULT respiratory distress syndrome ,T cells - Abstract
Background/Aim: The most common cause of death in COVID-19 is acute respiratory distress syndrome. Diffuse alveolar damage is the histological characteristic and counterpart of acute respiratory distress syndrome. Histopathological findings, accompanied by immunohistochemical findings, can provide valuable information in the pathogenesis of Covid-19. We aimed to investigate the histopathological findings by supporting our results with immunohistochemical staining in SARS-CoV-2 positive autopsies. Methods: A total of 101 autopsy cases with positive postmortem SARS-CoV-2 rt-PCR tests between May 2020-May 2021 were investigated in this retrospective cohort study. Cases with negative postmortem swab samples on rt-PCR and those with severe autolysis were excluded from the study. Pathological changes in the lung were examined with hematoxylin and eosin-stained preparations. Immunohistochemical assay with pancytokeratin, TTF-1, IL-6, CD68, CD3, CD8, and antibodies against the SARS-CoV-2 nucleocapsid protein were also performed for further evaluation. Results: Diffuse alveolar damage findings were present in 58 (61.7%) out of 94 cases in our study. Seventeen (18.1%) showed findings compatible with the exudative phase, 37 (39.3%) were in the proliferative phase, and 4 (4.3%) were in the fibrotic phase of diffuse alveolar damage. Pulmonary perivascular lymphocytic infiltrates contained more CD3 (+) T lymphocytes than CD8 (+) T lymphocytes, immunohistochemically. Conclusion: The finding of more CD3 positive T lymphocytes than the CD8 positive T lymphocytes in the perivascular lymphocytic infiltrate correlates with the hypothesis of the direct destruction of CD8 (+) T lymphocytes or through impairment of cellular immunity by SARS-CoV-2 induced mediators. Detection of immunohistochemical staining with IL-6 in COVID-19 supports the cytokine storm mentioned in the previous studies and the role of IL-6 in cytokine storm in SARS-CoV-2 infection. The limited number of immunohistochemical studies on SARS-CoV-2 increases the importance of our study, which evaluates IL-6, CD3, and CD8 expressions at the tissue level. Autopsy research is important and contributes to the development of protective, diagnostic, and therapeutic modalities. [ABSTRACT FROM AUTHOR]
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- 2021
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12. SHERRIS TIBBİ MİKROBİYOLOJİ
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ŞAKRU, NERMİN, APAN, TEOMAN ZAFER, BARAN, IRMAK, GÜRÜZ, ADNAN YÜKSEL, BAREKE, HALİN, Vilken Vander Gracht, Tuba, US, TERCAN, İNCEBOZ, TONAY, Aydoğan, Hakan, Mirza, H Cenk, Terek Ece, Gülfem, Korukluoğlu, Gülay, ASLAN, GÖNÜL, YARKIN, FÜGEN, Yarımcan, Filiz, Karabıçak, Nilgün, Kayar Doğan, Esra, BEDİR, ORHAN, Güngör Nikolic, Özge, RUH, EMRAH, Uzunoğlu Karagözc, Emel, Hortaç İştar, Elvan, Sofuoğlu, Elif, KARASARTOVA, DJURSUN, MUTLU, DERYA, AKDEMİR, CİHANGİR, ÇİÇEK, CANDAN, YAYLA, BUKET, DOĞAN, BORA, Gültepe, Bilge Sümbül, Bektöre, Bayhan, Dinç, Bedia, ESER, ÖZGEN, KORU, ÖZGÜR, AKDOĞAN, ÖZLEM, SANCAK, BANU, KAŞKATEPE, BANU, YURDAKUL MESUTOĞLU, PINAR, GÜMRAL, RAMAZAN, ÇETİNKAYA, RIZA AYTAÇ, ARAZ, REMZİ ENGİN, TAYLAN ÖZKAN, HİKMET AYŞEGÜL, KIRMUSAOĞLU, SAHRA, ERENSOY, MEMNUNE SELDA, GÖKAHMETOĞLU, SELMA, Seyer Çağatan, Ayşe, USLUCA, SELMA, Süzük Yıldız, Serap, GÜRESER, AYŞE SEMRA, Ziyade, Nihan, ÖRSTEN, SERRA, AKÇALI, SİNEM, Sarıbaş, Suat, HASÇELİK, AYŞE GÜLŞEN, YILDIRAN, ŞİNASİ TANER, Us, A Dürdal, ÜSKÜDAR GÜÇLÜ, AYLİN, ALTAY KOÇAK, AYLİN, ÖZKÜTÜK, AYŞE AYDAN, İLBAK, AYÇA, Özsoy, Aybars, SAYINER, AYÇA ARZU, Sığ, Ali Korhan, İNAL, ALİ, BAŞUSTAOĞLU, AHMET CELAL, Koşar Acar, Nezahat, GÜRKAN, NAZLI, GÜNEY, MUSTAFA, AYDIN TERZİOĞLU, MERVE, Öcal, Melda Meral, BEYHAN, YUNUS EMRE, ALPER, YAVUZ, AYDIN, MEHTAP, YAVUZ, MEHMET TEVFİK, Selek, Mehmet Burak, Can, Kübra, GÖÇMEN, JULİDE SEDEF, Mumcuoğlu, İpek, ALTUĞLU, İMRE, ÖZ, YASEMİN, KARAMAN, ÜLKÜ, and BOZDAYI, GÜLENDAM
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- 2019
13. Sherris Tıbbi Mikrobiyoloji
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Kayar Doğan, Esra, Sağlam Yarımcan, Filiz, GÜRÜZ, ADNAN YÜKSEL, BAŞUSTAOĞLU, AHMET CELAL, İNAL, ALİ, Sığ, Ali Korhan, SAYINER, AYÇA ARZU, Özsoy, Aybars, İLBAK, AYÇA, ÖZKÜTÜK, AYŞE AYDAN, Aylin Altay Koçak, Aylin Altay, Güçlü, Aylin Üsküdar, Us, Dürdal, HASÇELİK, AYŞE GÜLŞEN, GÜRESER, AYŞE SEMRA, Çağatan, Ayşe Seyer, TAYLAN ÖZKAN, HİKMET AYŞEGÜL, ÇETİNKAYA, RIZA AYTAÇ, KAŞKATEPE, BANU, SANCAK, BANU, OTLU, BARIŞ, DİNÇ, Bedia, Bektöre, Bayhan, Gültepe, Bilge Sümbül, DOĞAN, BORA, YAYLA, BUKET, ÇİÇEK, CANDAN, AKDEMİR, CİHANGİR, MUTLU, DERYA, YAPAR, DERYA, KARASARTOVA, DJURSUN, Sofuoğlu, Elif, Hortaç İştar, Elvan, UZUNOĞLU KARAGÖZ, EMEL, RUH, EMRAH, YARKIN, FÜGEN, ASLAN, GÖNÜL, Korukluoğlu, Gülay, BOZDAYI, GÜLENDAM, Ece, Gülfem Terek, MİRZA, HASAN CENK, Aydoğan, Hakan, BAREKE, HALİN, Baran, Irmak, ALTUĞLU, İMRE, Mumcuoğlu, İpek, Can, Kübra, Selek, Mehmet Burak, YAVUZ, MEHMET TEVFİK, Aydın, Mehtap, Öcal, Melda Meral, AYDIN, MERVE, GÜNEY, MUSTAFA, GÜRKAN, NAZLI, ŞAKRU, NERMİN, Koşar Acar, Nezahat, Ziyade, Nihan, Karabıçak, Nilgün, BEDİR, ORHAN, Güngör Nikolic, Özge, ESER, ÖZGEN, KORU, ÖZGÜR, AKDOĞAN, ÖZLEM, YURDAKUL MESUTOĞLU, PINAR, GÜMRAL, RAMAZAN, ARAZ, REMZİ ENGİN, KIRMUSAOĞLU, SAHRA, ERENSOY, MEMNUNE SELDA, GÖKAHMETOĞLU, SELMA, Usluca, Selma, Süzük Yıldız, Serap, ÖRSTEN, SERRA, AKÇALI, SİNEM, SARIBAŞ, Suat, YILDIRAN, ŞİNASİ TANER, APAN, TEOMAN ZAFER, US, TERCAN, Vilken Vander Gracht, Tuba, KARAMAN, ÜLKÜ, ÖZ, YASEMİN, Yavuz, Alper, BEYHAN, YUNUS EMRE, and İNCEBOZ, TONAY
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- 2019
14. Evaluation of blood specimens collected before the autopsy for microbiological screening tests in terms of biosafety
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Akpınar, Özlem, primary, Büyük, Yalçın, additional, Ziyade, Nihan, additional, and Arslan, Murat Nihat, additional
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- 2020
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15. Evaluation of Salmonella Species Isolated in Post-mortem Bacteriological Cultures in Autopsy Cases
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ZİYADE, Nihan, primary, ELGÖRMÜŞ, Neval, additional, ARABACI, Çiğdem, additional, KARA, Erdoğan, additional, and KARAYEL, Ferah, additional
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- 2019
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16. Türkiye’de Postmortem İzole Edilen HIV-1 Suşlarında Moleküler Epidemiyoloji
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Ziyade, Nihan, primary, Sayan, Murat, additional, Elgörmüş, Neval, additional, and Büyük, Yalçın, additional
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- 2019
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17. Otopsi Olgularında Viral Solunum Yolu Enfeksiyonu Etkenlerinin Multipleks PCR Yöntemi ile Araştırılması: Beş Yıllık Bir Çalışma
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ZİYADE, Nihan, primary, ELGÖRMÜŞ, Neval, additional, KARA, Erdoğan, additional, and KARAYEL, Ferah, additional
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- 2019
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18. Evaluation of 2015-2016 MOTAKK HBV DNA and HCV RNA external quality assessment national program results
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Karataylı, Ersin, Soydemir, Ege, Aksoy, Zeynep Büşra, Kızılpınar, Mehtap, Altay Koçak, Aylin, Karataylı, Senem Ceren, Yurdcu, Esra, Yıldırım, Umut, Güriz, Haluk, Bozdayı, Gülendam, Yurdaydın, Cihan, İlhan, Osman, Yıldırım, Yasin, Bozdayı, A. Mithat, Yalçıntaş Oğuz, Açelya, Barış, Ahmet, Alp, Alpaslan, Aksözek, Alper, Sayıner, Arzu, Karagül, Aydan, Ordu, Aylin, İstanbullu, Ayşe, Otlu, Barış, Arıdoğan, Buket, Aksu, Burak, Buruk, C. Kurtuluş, Karahan, Ceren, Güney, Çakır, Toksöz, Devrim, Yıldırım, Dilara, Çolak, Dilek, Eren Dağlar, Duygu, Fındık, Duygu, Kaş, Elif, Çalışkan, Emel, Zeyrek, Fadile Yıldız, Arslan, Fatma, Demir, Feyza, Milletli, Fikriye, Kibar, Filiz, Özdinçer, Furkan, Dündar, Gülnur, Arslan, Hande, Ağca, Harun, Alışkan, Hikmet Eda, Güdücüoğlu, Hüseyin, Fidan, Işıl, Akyar, Işın, Afşar, İlhan, Kaleli, İlknur, Dönmez, İsmail, Yanık, Kemalettin, Midilli, Kenan, Çubukçu, Kıvanç, Özdemir, Mehmet, Acar, Melek, Yalınay, Meltem, Kuşkucu, Mert Ahmet, Bakıcı, Mustafa Zahir, Aydın, Neriman, Yılmaz, Neziha, Çeken, Nihan, Ziyade, Nihan, Yılmaz, Nisel, Özgümüş, Osman Birol, Gitmişoğlu, Özlem, Demirgan, Recep, Keşli, Recep, Güçkan, Rıdvan, Sertoz, Ruchan, Akgün, Sadık, Aksaray, Sebahat, Bayık, Seyit Ahmet, Akçalı, Sinem, Gürcan, Şaban, Karslıgil, Tekin, Us, Tercan, Özekinci, Tuncer, Pılgır, Tülin, Aslan, Uğur, Dinç, Uğur, Say Coşkun, Umut Safiye, Çetinkol, Yeliz, Keskin, Yusuf, Ayaydın, Zeynep, and Aşçı Toraman, Zulal
- Subjects
Viral Yük ,HBV DNA ,HCV RNA ,Dış Kalite Kontrol ,External Quality Control ,Viral Load - Abstract
Ülkemizde, moleküler mikrobiyoloji tanı laboratuvarlarında yapılan HBV DNA ve HCV RNA viral yük saptama testlerinin ulusal bir dış kalite kontrol programında değerlendirilmesi amacıyla MOTAKK (Moleküler Tanıda Kalite Kontrol) Ulusal Programı başlatılmıştır. ISO 17043:2010 (Uygunluk değerlendirmesi- Yeterlilik deneyi için genel şartlar) standartlarına uyularak hazırlanan bu program, ülkemizde yapılan moleküler tanı testlerinin, daha standart ve doğru yapılmasına katkıda bulunarak, yurt dışından sağlanan dış kalite kontrol (DKK) programlarının yerini almayı amaçlamaktadır. Bu çalışmada, MOTAKK DKK Programı kapsamındaki HBV DNA ve HCV RNA viral yük 2015 ve 2016 sonuçlarının değerlendirilmesi amaçlanmıştır. Yapılan çağrılar MOTAKK web sayfası (www.motakk.org) üzerinden ilan edilmiştir. Web sayfası üzerinden kayıt olan katılımcı laboratuvarlara, 2015 ve 2016 yıllarında birer kalite kontrol paneli gönderilmiştir. Çevrimlerde kullanılan paneller, HBV, HCV, HIV, HAV, Parvovirüs B19 ve CMV serolojik belirteçleri negatif olan plazma ile dilüsyon yapılan değişik viral yüklere sahip örnekler ile hazırlanmış, negatif örneklerle beraber soğuk zincirde katılımcı laboratuvarlara ulaştırılmıştır. Laboratuvarlar ilgili testleri 2-3 hafta içerisinde sonuçlandırarak, MOTAKK web sayfasına sonuçlarını girmiştir. MOTAKK tarafından geliştirilen bir yazılım ile katılımcı laboratuvarların sonuçları ISO 13528’e uygun olarak analiz edilerek sonuç raporları oluşturulmuş ve web sayfasına yüklenerek katılımcılara iletilmiştir. Katılımcılar, çalışma sonucunu diğer laboratuvar sonuçları ile karşılaştırmalı olarak değerlendirme imkanına sahip olmuş ve referans değerlere ve ortalama sonuçla ilgili farklılıkları görerek kullandıkları testleri tekrar değerlendirmiştir. HBV DNA ve HCV RNA DKK programına, 2015-2016 yıllarında 70-73 laboratuvar katılmıştır. Katılımcılar, program araçlarına yüksek uyum göstererek kayıt, sonuç girme ve sonuç raporlarının alınmasını aksaksız olarak gerçekleştirmişlerdir. HBV panelinde; 2015 yılında katılımcı laboratuvarların %72.6-89.1’inin, 2016 yılında ise %84.7-90.3’ünün 1 standart sapma (SS) aralığında yer aldığı görülmüştür. HCV panelinde ise; katılımcıların %70.8-89.1’i 1 SS’de, ikinci çağrının yapıldığı 2016 yılında ise, %84.7-90.3’ünün 1 SS’nin içerisinde yer aldığı görülmüştür. Bu proje ile Türkiye’de HBV DNA ve HCV RNA ile ilgili ilk kez ulusal bir DKK programı hazırlanmış ve başarıyla uygulanmıştır. MOTAKK, DKK programı sonuç raporlarında sağlanan bilgiler, yurt dışından sağlanan kalite kontrol programı sonuç raporlarının sağladığı tüm bilgileri karşılamakta; ek olarak kullanılan teknolojilerin ve ticari ürünlerin sağlıklı karşılaştırmalarına olanak sağlamaktadır. MOTAKK, as a national external quality control program has been launched to evaluate the molecular detection of viral infections including HBV DNA and HCV RNA in molecular microbiology diagnostic laboratories in Turkey. This program is prepared in compliance with ISO 17043:2010 (Conformity assessment general requirements for proficiency testing) standards, and aims to take the place of external quality control programs from abroad, contributing to standardization and accuracy of molecular diagnostic tests in our country. The aim of this study was to evaluate 2015 and 2016 results of the MOTAKK External Quality Control Program for HBV DNA and HCV RNA viral load . The calls were announced on the web page of MOTAKK (www.motakk.org). The quality control samples were sent to participating laboratories in 2015 and 2016. Main stocks were prepared from patients with chronic hepatitis B and C who had viral load detection with reference methods according to WHO reference materials for viral load studies to improve quality control sera. From these main stocks, samples with different viral loads were prepared from dilutions of plasma with HBV, HCV, HAV, HIV, Parvovirus B19 and CMV negative serologic markers. Quality control samples were sent to the participating laboratories along with the negative samples in the cold chain. The laboratories accomplished the related tests within 2-3 weeks and entered their results on the MOTAKK web page. These results were analysed according to ISO 13528 (Statistical methods for use in proficiency testing by interlaboratory comparison) and scoring reports were created by a software developed by MOTAKK and sent to participating labs. Each laboratory evaluated their own results in comparison with the other laboratory results, reassessed the tests via observing the distance from the mean result and the reference values. The number of laboratories participating in the HBV DNA and HCV RNA external quality control program was 70-73 in 2015-2016. Participants were able to comply with the program tools, registering, entering results and receiving the results reports without problem. In HBV panel, 72.6-89.1% and 84.7-90.3% of the participant laboratories were in 1 standard deviation (SD) in 2015-2016, respectively. In HCV panel, 70.8-89.1% and 84.7-90.3% of the participant laboratories were in 1 SD in 2015-2016, respectively. A national external quality control program for HBV DNA and HCV RNA in Turkey has been prepared for the first time with this project and implemented successfully. All the data provided in the MOTAKK external quality control program final report, compensate all the data provided by the quality control program final reports from abroad; additionally, the report allows comparison of used technologies and commercial products.
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- 2018
19. The Distribution and antifungal susceptibilities of yeast species isolated from various postmortem samples
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Ziyade, Nihan, primary, Elgörmüş, Neval, additional, and Arslan, Murat Nihat, additional
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- 2019
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20. Postoperative keratitis due to Paecilomyces: a rare pediatric case
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Toker, Ebru, Ziyade, Nihan, Atici, Serkan, Eda, Kepenekli Kadayifçi, Türel, Özden, Toprak, Demet, Oray, Merih, Cerikcioglu, Nilgün, Soysal, Ahmet, Bakir, Mustafa, and TÜREL, Özden
- Subjects
Keratitis ,Male ,lcsh:R5-920 ,a rare pediatric case-, PAN AFRICAN MEDICAL JOURNAL, cilt.24, 2016 [Toker E., ZIYADE N., Atici S., Eda K. K. , Turel O., Toprak D., Oray M., ÇERİKÇİOĞLU N., Soysal A., Bakir M., -Postoperative keratitis due to Paecilomyces] ,Antifungal Agents ,Adolescent ,fungal infection ,lcsh:Public aspects of medicine ,Case Report ,lcsh:RA1-1270 ,Ophthalmologic Surgical Procedures ,Cornea ,Postoperative Complications ,paecilomyces ,Amphotericin B ,voriconazole ,Humans ,lcsh:Medicine (General) ,Eye Infections, Fungal - Abstract
Fungal infections like Paecilomyces keratitis have emerged in childhood recently. The diagnosis and treatment of Paecilomyces keratitis is difficult and the outcome is usually poor. Corneal culture should be performed on fungal media such as Sabouraud glucose neopeptone agar (SDA) as soon as possible for diagnosis. We report a rare case of Paecilomyces keratitis in an immunocompetent child, which was unresponsive to amphotericin B. The case was managed by a multidisciplinary approach involving the departments of ophthalmology, microbiology and pediatric infectious diseases. We want to draw attention once again that fungal keratitis caused by unusual agents are increasing. Physicians should consider fungal causes of keratitis, in patients with some predisposing factors like ocular surgery and prolonged use of topical corticosteroids.The Pan African Medical Journal 2016;24
- Published
- 2016
21. ALT SOLUNUM YOLU İNFEKSİYONLARININ TANISINDA BALGAM ÖRNEKLERİNİN YIKANMASININ KÜLTÜR SONUCUNA ETKİSİ
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ZİYADE, Nihan and YAGCİ, Aysegul
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Balgam,Kantitatif kültür,Alt solunum yolu infeksiyonu - Abstract
Amaç: Alt solunum yolu infeksiyonlarında (ASYİ) Gram boyamanın ve balgam örneklerinin salin ile yıkanmasının katkısının değerlendirilmesi. Metod: Her bir küçük mikroskop alanı (10x) için 10 dan az yassı epitel hücresi içeren tüm örnekler kalitatif ve kantitatif olarak ekildi. Bulgular: ASYİ tanısıyla gönderilen 489 hastadan alınan 620 örnek değerlendirildi. Gram boyamanın duyarlılığı %78.6 , özgüllüğü %82 olarak değerlendirilirken, bu değerler H. influenzae ve S. pneumoniae için %100’ e ulaştı. Kantitatif yöntem kültür pozitifliğini %52’ den % 63.5’ a yükseltti. En sık izole edilen patojenler sırasıyla Haemophilus influenzae, Pseudomonas aeruginosa ve Streptococcus pneumoniae oldu. Sonuç: Ekspoktere balgam örneklerinin toplanması invaziv olmayan bir işlem olup salin ile yıkama sonrası yapılan Gram boyama ve kültür laboratuvar tanısını kolaylaştırabilir. Kültür öncesi Gram boyamada deneyimli bir personel H. influenzae and S. pneumoniae için ön değerlendirmeyi kolaylıkla yapabilir ve kültür sonuçları için gereken 48 saat öncesinde tanıya yardımcı olabilir.
- Published
- 2015
22. Investigation of tuberculosis prevalence by acid-fast stain, culture and real-time PCR method in forensic autopsies
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Yagmur, Gulhan, primary, Elgormus, Neval, additional, Ziyade, Nihan, additional, Das, Taner, additional, Ozgun, Ayse, additional, Gurler, A. Selcuk, additional, Yildirim, Muzaffer, additional, Akcay, Arzu, additional, Karayel, Ferah, additional, and Koc, Sermet, additional
- Published
- 2017
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23. Cardiac Findings of Pulmonary Thromboembolism by Autopsy: A Review of 48 Cases
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Yakar, Aysun, primary, Yakar, Fatih, additional, Ziyade, Nihan, additional, Yıldız, Muhlis, additional, and Üzün, İbrahim, additional
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- 2016
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24. Investigation of tuberculosis prevalence by acid-fast stain, culture and real-time PCR method in forensic autopsies.
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Yagmur, Gulhan, Elgormus, Neval, Ziyade, Nihan, Das, Taner, Ozgun, Ayse, Gurler, A. Selcuk, Yildirim, Muzaffer, Akcay, Arzu, Karayel, Ferah, and Koc, Sermet
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TUBERCULOSIS diagnosis ,TUBERCULOSIS treatment ,DISEASE prevalence ,AUTOPSY ,POLYMERASE chain reaction - Abstract
Tuberculosis (TB) is still one of the most important diseases and causes of death in the world. We aimed to investigate TB prevalence in forensic autopsy cases in Turkey by the acid-fast bacilli (AFB) staining, TB culture and real-time polymerase chain reaction (RT-PCR) methods in paraffin-embedded tissues. From January 2012 to January 2015, 1676 tissue samples were examined under AFB staining and TB culture, and 85 paraffin-embedded tissue samples under RT-PCR from 14,083 prospectively-investigated forensic autopsy cases in the Istanbul Council of Forensic Medicine. Positivity with microbiological methods (AFB staining and/or TB culture and/or RT-PCR) was detected in 43 (0.3%) out of 73 (0.5%) cases in which TB was diagnosed with histopathological findings. Acid-fast bacilli were detected in 14 tissue samples by AFB staining, and a total of 11 tissue samples were found culture-positive in the Löwenstein-Jensen medium. Mycobacterium tuberculosis DNA was positive in 36 samples with RT-PCR. Eleven (15%) cases were detected as miliary tuberculosis. Microbiological sampling should accompany autopsy findings and histopathological sampling for post-mortem identification and notification of active TB during forensic autopsies. Diagnosis of TB in forensic autopsies would contribute to clarifying the cause of death and to the collection of epidemiological data in Turkey, particularly in ante-mortem undiagnosed cases. [ABSTRACT FROM AUTHOR]
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- 2018
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25. Evaluation of Virulence Factors and Antifungal Susceptibility in Yeast Isolates from Postmortem Specimens
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Yagmur, Gulhan, primary, Sav, Hafize, additional, Ziyade, Nihan, additional, Elgormus, Neval, additional, Sen, Sumeyye, additional, Akkoyun Bilgi, Esma, additional, Atan, Yusuf, additional, Buyuk, Yalcin, additional, and Kiraz, Nuri, additional
- Published
- 2016
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26. Detection of Human Bocavirus DNA by Multiplex PCR Analysis: Postmortem Case Report
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Ziyade, Nihan, primary, Sirin, Gozde, additional, Elgormus, Neval, additional, and Das, Taner, additional
- Published
- 2015
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27. Yıkanmış balgam örneklerinin direkt inceleme ve kantitatif kültürünün alt solunum yolu enfeksiyonlarının tanısındaki değerinin incelenmesi
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Ziyade, Nihan, Yağcı, Ayşegül, and Mikrobiyoloji ve Klinik Mikrobiyoloji Anabilim Dalı
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Mikrobiyoloji ,Microbiology - Abstract
Solunum sistemi enfeksiyonları tüm dünyada önemli mortalite ve morbiditenedeni olarak karşımıza çıkmakta ve her yaştan insanı etkilemektedir. Çoksayıda mikroorganizma solunum yolu enfeksiyonlarına yol açabilmekte ancaktüm gelişen tekniklere ve laboratuvar yöntemlerine rağmen olguların yarısınayakın kısmında etken tanımlanamamaktadır. Balgam örneği invazivyöntemlere gerek kalmaksızın elde edilebilmekte ve gram boyalı preparatınınhazırlanması ucuz ve basit olup, dikkatli ve ayrıntılı incelemelerle hekimidoğru tanıya yönlendirebilmektedir.Çalışmamızda Marmara Üniversitesi Hastanesi Merkez Laboratuvarı'na alt solunum yolu enfeksiyonu ön tanısı ile gelen 489 hastadan alınan 620balgam örneği ile çalışılmıştır. Preparatlar iki farklı araştırıcı tarafındanincelenmiş ve kültür yapılması uygun örnekler yıkanarak kalitatif ve kantitatifolarak ekilmiş; direkt inceleme ve kültür sonuçları karşılaştırılmıştır.Balgam örneklerinden hazırlanan preparatların Gram boyama iledeğerlendirilmesinde 343 örnekte (%55.3) 10'dan fazla yassı epitel hücresigörüldüğünden bu örnekler uygun olmayan örnek olarak kabul edilmiş vekültür açısından değerlendirmeye alınmamıştır. Örnekler hızlı strip test(Combur test) ile değerlendirildiğinde testin duyarlılığı %70, özgüllüğü %74olarak bulunmuştur. Combur testi ile spesifik gravite üzerinden balgamkalitesinin değerlendirilmesi hızlı ve pratik olmakla beraber, düşük özgüllükve duyarlılık nedeniyle direkt incelemeye alternatif olamamıştır.Örneklerin Gram boyama ile direkt incelemesinde 10'dan az yassıepitel hücresi, 25'den fazla lökosit saptanan grupta direkt inceleme ve kültürsonuçlarının korelasyonu en iyi bulunmuştur. Lökosit sayısının azalmasıylabirlikte solunum yoluna özgü patojen bakterilerin saptanma olasılığı daazalmaktadır.Kültür yapılmasına uygun bulunan 277 örneğin 176'sında (%63.5)kantitatif yöntem ile etken patojen saptanmış iken kalitatif yöntemle etkenüretme oranımız %52'de kalmıştır (p
- Published
- 2007
28. Methicillin, Vancomycin, Teicoplanin and Macrolide-Lincosamide-Streptogramin B (MLSB) Resistance in Staphylococcus aureus Isolated from Postmortem Samples
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ZİYADE, Nihan, primary, YAĞMUR, Gülhan, additional, ELGÖRMÜŞ, Neval, additional, KARAYEL, Ferah, additional, and BÜYÜK, Yalçın, additional
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- 2015
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29. Toxic Shock Syndrome Due to Streptococcus pyogenes: Postmortem Case Report
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ZİYADE, Nihan, primary, KÜÇÜK, Ceyhun, additional, DAŞ, Taner, additional, YILMAZ, Süleyman, additional, PAKAŞTİÇALI, Nagehan, additional, NAZİK, Hasan, additional, and KOÇ, Sermet, additional
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- 2015
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30. Streptococcus pneumoniae Menenjitine Bağlı Ölüm Olgusu: Postmortem Mikrobiyolojik Analizin Katkısı
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ZİYADE, Nihan, primary, CELİK, Safa, additional, OZGUN, Ayse, additional, and GULBEYAZ, Hatice, additional
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- 2014
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31. Postmortem Mikrobiyolojik Analizler Güncel Yaklaşım
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Ziyade, Nihan, primary
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- 2014
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32. Determination of standard number, size and weight of mediastinal lymph nodes in postmortem examinations: reflection on lung cancer surgery
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Ziyade, Sedat, primary, Pinarbasili, Nur Buyuk, additional, Ziyade, Nihan, additional, Akdemir, Osman Cemil, additional, Sahin, Feyzi, additional, Soysal, Ömer, additional, and Toker, Alper, additional
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- 2013
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33. IMPROVING SPUTUM CULTURE RESULTS FOR DIAGNOSIS OF LOWER RESPIRATORY TRACT BY SALINE WASHING.
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Ziyade, Nihan and Yagci, Aysegul
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GRAM'S stain , *SPUTUM , *SALIVA , *SPUTUM microbiology , *RESPIRATORY infections , *EPITHELIAL cells , *STREPTOCOCCUS pneumoniae , *HAEMOPHILUS influenzae , *MICROBIOLOGISTS - Abstract
Objective: To evaluate the value of Gram staining and bacteriological culture of sputum by the saline wash method for diagnosis of lower respiratory tract infections (LRTI). Methods: All samples containing fewer than 10 squamous epithelial cells per low power microscopic field (10x) were cultured both directly and quantitatively. Results: 620 sputum specimens from 489 patients clinically diagnosed as having LRTI were evaluated. Sensitivity of Gram stain was 78.6% and specificity was 82%, reaching to 100% for H. influenzae and S. pneumoniae. Quantitative method increased overall culture positivity from 52% to 63.5% of inoculated samples. The three most commonly isolated pathogens were Haemophilus influenzae, Pseudomonas aeruginosa and Streptococcus pneumoniae. Conclusion: The collection of expectorated sputum is a non-invasive process and saline washing and subsequent Gram stain and culture can provide a high diagnostic yield. Initial Gram examination of sputum samples, especially for H. influenzae and S. pneumoniae is advisable when experienced microbiologists interpret the slides, since Gram stain is almost as effective as cultivation and the results are available 48 hours sooner. [ABSTRACT FROM AUTHOR]
- Published
- 2010
34. [Postmortem Molecular Epidemiology of HIV-1 Strains Isolated in Turkey].
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Ziyade N, Sayan M, Elgörmüş N, and Büyük Y
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- Adolescent, Adult, Aged, Antiviral Agents pharmacology, Autopsy, Child, Child, Preschool, Drug Resistance, Viral, Female, Genotype, Humans, Infant, Male, Middle Aged, Mutation, Phylogeny, Turkey epidemiology, HIV Infections epidemiology, HIV Infections virology, HIV-1 classification, HIV-1 drug effects, Molecular Epidemiology
- Abstract
Human immunodeficiency virus (HIV) comprises two genotypes, namely HIV-1 (group M, N, O and P) and HIV-2 (group A to H), which differ in their envelope glycoproteins and other antigenic epitopes despite their morphological and biological resemblance.Group M of HIV-1 responsible for 95% of HIV infections worldwide is composed of nine subgroups. In addition to subgroups, group M contains also two recombinant forms, known as circulating recombinant form (CRF) and unique recombinant form (URF). The first case of HIV/acquired immun deficiency virus (AIDS) in Turkey was reported in 1985 and the current number of cases reached a total of 18.557 including 1736 with AIDS based upon the surveillance data of Ministry of Health between October 1985 and November 2018. The aim of this study was to determine the prevalence of HIV-1 strains isolated from HIV positive autopsy cases detected by HIV polymerase chain reaction (PCR) and determine drug resistance. Twenty eight cases [17 males, 11 female: age ranged between 3 months and 66 years (median: 35 years)] found to be HIV positive among the autopsy cases sent for HIV1 PCR study and serological screening between 2011-2017 were recruited in the study. For identification of subtypes in HIV-1 isolates, most-preferred analysis tool was used [HIVdb Stanford University Genotypic Resistance Interpretation Algorithm (www.hivdb.stanford.edu)]. Phylogenetic tree was made according to direct sequencing of HIV-1 reverse transcriptase (pol) region and phylogenetic analysis was evaluated in 23 cases. Los Alamos National Laboratory were trimmed from full-length genomes. Phylogenetic analysis of the 870 base pair of the pol gene region was performed using CLC Sequence Viewer v8.0 (Qiagen Aarhus A/S, www.qiagenbioinformatics.com) software. The phylogenetic tree was obtained according to the neighbor-joining method and the Jukes-Cantor nucleotide distance scale and bootstrap value was set at 1000. In our study, subtype B was found to be most frequent type (39.3%; 11/28). Subtype A (17.9%; 5/28), CRF02_AG (14.3%; 4/28), subtype C (10.7%; 3/28), B+CRF02_AG recombinant (3.6%; 1/28), CRF01_AE (3.6%; 1/28), subtype D (3.6%; 1/28), as well as subtype F (3.6%; 1/28) and subtype G (3.6%; 1/28) strains were also detected in the circulation. Analysis of our results showed that 32.1% (9/28) of the samples exhibited resistance mutations. Detected mutations were as follows: M41L, T215C, K65R, M184V, responsible for nucleoside reverse transcriptase inhibitor (NRTI) resistance; K103N, Y181C, G190A, responsible for non-nucleoside reverse transcriptase inhibitor (NNRTI) resistance; D30N, M46I, responsible for protease inhibitor (PI) resistance. NRTI, NNRTI and PI mutation rates in the samples were found as 21.4%, 7.1% and 3.6%, respectively. Although number of samples analyzed in our study is low, we can propose that they resemble the strains circulating in Turkey. The results of our study; although the subtype B is still dominant in our country, it supports other studies reporting that there are non-B subtypes and an increase in CRF rates in recent years. Phylogenetic analysis is widely regarded as the gold standard technique to determine the subtypes of HIV-1. Molecular epidemiologic studies related to HIV may be important in monitoring HIV subtype patterns and spreading pathways in that country. As a result; the opportunity to collect postmortem HIV sequences in a database appears to have occurred, and as this database expands, its usability is available. Therefore, it is thought that HIV subtypes and mutation information may be useful.
- Published
- 2019
- Full Text
- View/download PDF
35. [Investigation of viral respiratory tract infection agents by multiplex PCR method in autopsy cases: A five-year study].
- Author
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Ziyade N, Elgörmüş N, Kara E, and Karayel F
- Subjects
- Adolescent, Adult, Autopsy, Child, Child, Preschool, Female, Humans, Infant, Infant, Newborn, Male, Young Adult, Multiplex Polymerase Chain Reaction, Respiratory Tract Infections virology, Virus Diseases diagnosis, Virus Diseases virology, Viruses genetics, Viruses isolation & purification
- Abstract
Viral respiratory infections are one of the leading causes of morbidity and mortality, especially in children, elderly and immunocompromised patients. The inclusion of post-mortem studies to diagnose the infection causing mortality could be beneficial in specifying new pathogens and determining strategies for treatment and prevention. The aim of this study was to research viral etiology by applying multiplex real-time polymerase chain reaction (Rt-PCR) method in autopsy cases who have been considered to have a respiratory infection and to assess whether the viruses detected are the primary cause of the infection and whether they have any contributory effect on the mortality together with histopathological evidence. In this study, we included a total of 834 cases consisting of sudden death cases from infantile-pediatric age group and autopsy cases from > 18 year age group with suspected respiratory tract infection in our laboratory between January 2013 and May 2017. Of 834 cases, 468 (56.1%) were male and 366 (43.9%) were female, there were 191 (22.9%) cases between 0-1 months, 593 (71.1%) cases between 1 month-18 years, and 50 (6%) cases in the > 18 years age group. In 728 of 834 (87.3%) cases nasopharyngeal/tracheal swab samples and in 106 (12.7%) of them paraffin-embedded lung tissue samples were studied by the use of "FTD Respiratory 21 (Fast-Tract Diagnostics Luxemburg)" kit, with multiplex Rt-PCR method. The post-mortem samples were evaluated for human rhinovirus (HRV), parainfluenza viruses (PIV) (1, 2, 3, 4), influenza virus type A and B (INF-A, INF-B), enterovirus (EV), human bocavirus (HBoV), adenovirus (AdV), human coronavirus (HCoV 229,63,HKU,43), human metapneumovirus A ve B (HMPV-A/B), parechovirus, respiratory syncytial virus (RSV A/B) and Mycoplasma pneumoniae. In our study, at least one respiratory virus was detected by Rt-PCR in 379 (45.4%) of total 834 cases, whereas no viral agent was identified in 455 (54.6%) of the cases. One viral agent was detected in 278 (33.3%), two viral agents were detected in 83 (9.94%) and three viral agents were detected in 18 (2.16%) cases. Overall, the most common viral agent was HRV 110 (13.2%) followed by AdV 39 (4.7%) and RSV A/B 33 (4%). In pediatric cases the rate of positive results for respiratory viruses was 31.8% and in adult group it was 20% (p= 0.032). The most common virus detected among children was HRV and INF-A in adult group. In 101 (12.1%) cases infections caused by two or three agents were diagnosed. Infections with two causative agents were detected as 2.6% (5/191) in 0-1 month age group, 13% (77/593) in 1 month-18 year age group and 2% (1/50) in > 18 age group. The most frequently observed co-infections with double causative agents were HRV and INF-B, HRV and PIV, HRV and HBoV, HRV and AdV combinations. Infections with three causative agents were detected completely among 1 month-18 year age [3% (18/593)] group. In our study, 318 (38.1%) cases had no signs of infection in the postmortem histopathological examination of the lung tissues, while the most common finding was lobular pneumonia/purulent bronchitis in 233 (28%) cases and the second was interstitial pneumonia in 168 (20.1%) cases. When all cases were evaluated in terms of infection, positive results were detected in 469 (56.2%) cases. As a result; postmortem microbiological diagnosis with autopsy and histopathological detection of the patients who are thought to have respiratory tract infection will also determine the infectious agents causing death.
- Published
- 2019
- Full Text
- View/download PDF
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