20 results on '"Taşdemir, Mehmet"'
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2. Complement gene mutations in children with C3 glomerulopathy: do they affect the response to mycophenolate mofetil?
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Günay, Neslihan, Dursun, İsmail, Gökçe, İbrahim, Akbalık Kara, Mehtap, Tekcan, Demet, Çiçek, Neslihan, Torun Bayram, Meral, Koyun, Mustafa, Dinçel, Nida, Dursun, Hasan, Saygılı, Seha, Yürük Yıldırım, Zeynep Nagehan, Yüksel, Selçuk, Dönmez, Osman, Yel, Sibel, Demircioğlu Kılıç, Beltinge, Aydoğ, Özlem, Atmış, Bahriye, Çaltık Yılmaz, Aysun, Bakkaloğlu, Sevcan A., Aytaç, Mehmet Baha, Taşdemir, Mehmet, Kasap Demir, Belde, Soylu, Alper, Çomak, Elif, Kantar Özşahin, Aslı, Kaçar, Alper, Canpolat, Nur, Yılmaz, Alev, Girişgen, İlknur, Akkoyunlu, Kadirye Betül, Alpay, Harika, and Poyrazoğlu, Hakan M.
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- 2024
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3. Implication of transcription factor FOXD2 dysfunction in syndromic congenital anomalies of the kidney and urinary tract (CAKUT)
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Riedhammer, Korbinian M., Nguyen, Thanh-Minh T., Koşukcu, Can, Calzada-Wack, Julia, Li, Yong, Assia Batzir, Nurit, Saygılı, Seha, Wimmers, Vera, Kim, Gwang-Jin, Chrysanthou, Marialena, Bakey, Zeineb, Sofrin-Drucker, Efrat, Kraiger, Markus, Sanz-Moreno, Adrián, Amarie, Oana V., Rathkolb, Birgit, Klein-Rodewald, Tanja, Garrett, Lillian, Hölter, Sabine M., Seisenberger, Claudia, Haug, Stefan, Schlosser, Pascal, Marschall, Susan, Wurst, Wolfgang, Fuchs, Helmut, Gailus-Durner, Valerie, Wuttke, Matthias, Hrabe de Angelis, Martin, Ćomić, Jasmina, Akgün Doğan, Özlem, Özlük, Yasemin, Taşdemir, Mehmet, Ağbaş, Ayşe, Canpolat, Nur, Orenstein, Naama, Çalışkan, Salim, Weber, Ruthild G., Bergmann, Carsten, Jeanpierre, Cecile, Saunier, Sophie, Lim, Tze Y., Hildebrandt, Friedhelm, Alhaddad, Bader, Basel-Salmon, Lina, Borovitz, Yael, Wu, Kaman, Antony, Dinu, Matschkal, Julia, Schaaf, Christian W., Renders, Lutz, Schmaderer, Christoph, Rogg, Manuel, Schell, Christoph, Meitinger, Thomas, Heemann, Uwe, Köttgen, Anna, Arnold, Sebastian J., Ozaltin, Fatih, Schmidts, Miriam, and Hoefele, Julia
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- 2024
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4. Development of a QA/QC Methodology for the Construction of Critical Infrastructure Projects Designed Based on Service Life Considerations
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Akkaya, Yılmaz, Taşdemir, Mehmet Ali, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Ilki, Alper, editor, Çavunt, Derya, editor, and Çavunt, Yavuz Selim, editor
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- 2023
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5. COVID-19 in pediatric patients undergoing chronic dialysis and kidney transplantation
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Canpolat, Nur, Yıldırım, Zeynep Yürük, Yıldız, Nurdan, Taşdemir, Mehmet, Göknar, Nilüfer, Evrengül, Havva, Gülmez, Rüveyda, Aksu, Bağdagül, Dursun, Hasan, Özçelik, Gül, Yavaşcan, Önder, Çiçek, Rümeysa Yasemin, Tülpar, Sebahat, Hacıhamdioğlu, Duygu Övünç, Nayır, Ahmet, and Alpay, Harika
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- 2022
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6. Pediatric kidney care experience after the 2023 Türkiye earthquake.
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Bakkaloğlu, Sevcan A, Delibaş, Ali, Döven, Serra Sürmeli, Taner, Sevgin, Yavuz, Sevgi, Erfidan, Gökçen, Vatansever, Esra Danacı, Aynacı, Fatma, Yilmaz, Kenan, Taşdemir, Mehmet, Akacı, Okan, Akıncı, Nurver, Güven, Serçin, Çiçek, Neslihan, Dursun, Ismail, Keleşoğlu, Emre, Sancaktar, Muhammet, Alaygut, Demet, Saygılı, Seha, and Yavaşcan, Önder
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CRUSH syndrome ,CREATINE kinase ,ACUTE kidney failure ,SODIUM bicarbonate ,CITIES & towns - Abstract
Background Two earthquakes on 6 February 2023 destroyed 10 cities in Türkiye. We report our experience with pediatric victims during these catastrophes, with a focus on crush syndrome related–acute kidney injury (Crush-AKI) and death. Method Web-based software was prepared. Patient demographics, time under rubble (TUR), admission laboratory data, dialysis, and kidney and overall outcomes were recorded. Results A total of 903 injured children (median age 11.62 years) were evaluated. Mean TUR was 13 h (interquartile range 32.5, max 240 h). Thirty-one of 32 patients with a TUR of >120 h survived. The patient who was rescued after 10 days survived. Two-thirds of the patients were given 50 mEq/L sodium bicarbonate in 0.45% sodium chloride solution on admission day. Fifty-eight percent of patients were given intravenous fluid (IVF) at a volume of 2000–3000 mL/m
2 body surface area (BSA), 40% at 3000–4000 mL/m2 BSA and only 2% at >4000 mL/m2 BSA. A total of 425 patients had surgeries, and 48 suffered from major bleeding. Amputations were recorded in 96 patients. Eighty-two and 66 patients required ventilator and inotropic support, respectively. Crush-AKI developed in 314 patients (36% of all patients). In all, 189 patients were dialyzed. Age >15 years, creatine phosphokinase (CK) ≥20 950 U/L, TUR ≥10 h and the first-day IVF volume <3000–4000 mL/m2 BSA were associated with Crush-AKI development. Twenty-two deaths were recorded, 20 of 22 occurring in patients with Crush-AKI and within the first 4 days of admission. All patients admitted after 7 days survived. Conclusions These are the most extensive pediatric kidney disaster data obtained after an earthquake. Serum CK level was significantly associated with Crush-AKI at the levels of >20 950 U/L, but not with death. Adolescent age and initial IVF of less than 3000–4000 mL/m2 BSA were also associated with Crush-AKI. Given that mildly injured victims can survive longer periods in the disaster field, we suggest uninterrupted rescue activity for at least 10 days. [ABSTRACT FROM AUTHOR]- Published
- 2024
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7. The influence of sociodemographic and health‐related factors, clinical education status, and sleep quality on work‐related quality of life among dental students.
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Sezer, Berkant, Sıddıkoğlu, Duygu, Doğan, İlkay, Taşdemir, Mehmet Can, and Ateş, Gizem
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SLEEP quality ,DENTAL students ,QUALITY of life ,CLINICAL education ,SOCIODEMOGRAPHIC factors ,DENTAL schools ,ADOLESCENT smoking - Abstract
Introduction: With the premise that the demanding educational process and associated factors could influence the work‐related quality of life (WRQoL) of dental students, this study aimed to investigate the influence of diverse sociodemographic and health‐related factors, clinical education status, and sleep quality on the WRQoL of dental students. Materials and Methods: A three‐part questionnaire was administered to a group of preclinical and clinical dental students studying in different classes. The first part of the questionnaire included various sociodemographic and health‐related questions. In the second part, the multidimensional 23‐item WRQoL scale, with established validity and reliability, was applied to evaluate the WRQoL of the students. The last part of the questionnaire included the Pittsburgh Sleep Quality Index, comprising 19 items. General linear models were created to predict subscale scores using sociodemographic and health‐related characteristics, as well as univariate significant independent variables. Results: It was observed that the majority of the participants (78.2%) had poor sleep quality. Being clinical dental students had a significant and positive effect on the stress at work domain of WRQoL (p =.006), while it had a significant and negative effect on the home‐work interface domain (p <.001). The decrease in sleep quality had a significant and negative effect on all domains of WRQoL (p <.05) except for the stress at work domain. Conclusions: Clinical education status, regular smoking, and sleep quality significantly affect different domains of dental students' WRQoL. Changes in these factors should be considered in approaches to increasing students' WRQoL. [ABSTRACT FROM AUTHOR]
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- 2024
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8. Comprehensive evaluation of patients with primary hyperoxaluria type 1: A nationwide study
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Bakkaloğlu, Sevcan A., primary, Büyükkaragöz, Bahar, additional, Pınarbaşı, Ayşe Seda, additional, Leventoğlu, Emre, additional, Saygılı, Seha, additional, Çomak, Elif, additional, Yıldırım, Zeynep Y., additional, Akıncı, Nurver, additional, Dursun, İsmail, additional, Karabay Bayazıt, Aysun, additional, Kavaz Tufan, Aslı, additional, Akman, Sema, additional, Yılmaz, Alev, additional, Noyan, Aytül, additional, Ağbaş, Ayşe, additional, Serdaroğlu, Erkin, additional, Delibaş, Ali, additional, Elmacı, Ahmet Midhat, additional, Taşdemir, Mehmet, additional, Ezgü, Fatih S., additional, and Sever, Lale, additional
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- 2024
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9. Implication of transcription factor FOXD2 dysfunction in syndromic congenital anomalies of the kidney and urinary tract (CAKUT).
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Riedhammer, Korbinian M., primary, Nguyen, Thanh-Minh T., additional, Koşukcu, Can, additional, Calzada-Wack, Julia, additional, Li, Yong, additional, Batzir, Nurit Assia, additional, Saygılı, Seha, additional, Wimmers, Vera, additional, Kim, Gwang-Jin, additional, Chrysanthou, Marialena, additional, Bakey, Zeineb, additional, Sofrin-Drucker, Efrat, additional, Kraiger, Markus, additional, Sanz-Moreno, Adrián, additional, Amarie, Oana V., additional, Rathkolb, Birgit, additional, Klein-Rodewald, Tanja, additional, Garrett, Lillian, additional, Hölter, Sabine M., additional, Seisenberger, Claudia, additional, Haug, Stefan, additional, Schlosser, Pascal, additional, Marschall, Susan, additional, Wurst, Wolfgang, additional, Fuchs, Helmut, additional, Gailus-Durner, Valerie, additional, Wuttke, Matthias, additional, Hrabe de Angelis, Martin, additional, Ćomić, Jasmina, additional, Doğan, Özlem Akgün, additional, Özlük, Yasemin, additional, Taşdemir, Mehmet, additional, Ağbaş, Ayşe, additional, Canpolat, Nur, additional, Orenstein, Naama, additional, Çalışkan, Salim, additional, Weber, Ruthild G., additional, Bergmann, Carsten, additional, Jeanpierre, Cecile, additional, Saunier, Sophie, additional, Lim, Tze Y., additional, Hildebrandt, Friedhelm, additional, Alhaddad, Bader, additional, Basel-Salmon, Lina, additional, Borovitz, Yael, additional, Wu, Kaman, additional, Antony, Dinu, additional, Matschkal, Julia, additional, Schaaf, Christian W., additional, Renders, Lutz, additional, Schmaderer, Christoph, additional, Rogg, Manuel, additional, Schell, Christoph, additional, Meitinger, Thomas, additional, Heemann, Uwe, additional, Köttgen, Anna, additional, Arnold, Sebastian J., additional, Ozaltin, Fatih, additional, Schmidts, Miriam, additional, and Hoefele, Julia, additional
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- 2023
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10. Bireylerde eğitim ve stresle başa çıkma arasındaki ilişkinin incelenmesi
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Taşdemir, Mehmet, Güden, Semra, Yetkin, Bahar, and Öztop, Özer
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Stres, vücudun hem fiziksel hem de psikolojik sınırlarını tehdit eden bir durumdur. Strese bağlı sağlık sorunları birey yaşamında etkili bir yere sahip olmakla birlikte hayatı fizyolojik ve psikolojik olarak etkilemektedir. Artan kalp hızı, çarpıntı, sıcak basması, nefes darlığı, hipertansiyon, diyabet gibi çeşitli faktörler stresin belirtileridir. Stresin üstesinden gelebilmek için yapılan çabalar genel olarak stresle başa çıkma şeklinde kavramsallaştırılmıştır. Stresle başa çıkma, kişide kaygı veya stres kaynaklarını azalttığı gösterilen zihinsel ve davranışsal tepki süreçleridir. Birey yaşamında çeşitli etkenlere bağlı olarak stres gelişebildiği gibi eğitim ve okul gibi etkenlere bağlı olarak da stres görülebilmektedir. Eğitim masrafları, sınavlar, okul arkadaşları ve eğitimciler eğitim ve okul yaşamı stres kaynakları arasında yer almaktadır. Bireylerde eğitim düzeyinin stres ile başa çıkma ile değişim gösterip göstermediğinin belirlenmesi amacıyla gerçekleştirilen bu araştırmada cinsiyet, yaş ve eğitim düzeyi ile stresle başa çıkma düzeyleri arası ilişki incelenmiştir. Araştırmada birden fazla kavram arasındaki ilişki incelendiğinden nicel araştırma kapsamında yer alan ilişkisel tarama modeli kullanılmıştır. Araştırmaya İstanbul ili Beylikdüzü ilçesinde ikamet eden 18 yaşından büyük 465 gönüllü katılım göstermiştir. Araştırmada Stresle Başa Çıkma Ölçeği kullanılmış ve ölçeğin Cronbach's Alpha değeri 0,763 olarak belirlenmiştir. Elde edilen veriler veriler SPSS for Windows 22.0 paket programıyla analiz edilmiştir. Araştırmada bireylerde stres ile başa çıkmanın cinsiyet, yaş ve eğitim gibi değişkenlere göre farklılık gösterdiği belirlenmiştir.
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- 2023
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11. COVID-19 in pediatric nephrology centers in Turkey
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Taşdemir, Mehmet (ORCID 0000-0002-5579-6339 & YÖK ID 175867); Bilge, İlmay (ORCID 0000-0002-4852-989X & YÖK ID 198907), Leventoglu, Emre; Ozdemir Atikel, Yesim; Nalcacioglu, Hulya; Dursun, Ismail; Dursun, Hasan; Yuruk Yildirim, Zeynep; Yildiz, Nurdan; Kaya Aksoy, Gulsah; Celakil, Mehtap; Demircioglu Kilic, Beltinge; Zirhli Selcuk, Sena; Canpolat, Nur; Kargin Cakici, Evrim; Ozlu, Sare Gulfem; Tulpar, Sebahat; Yuksel, Selcuk; Atmis, Bahriye; Surmeli Doven, Serra; Taner, Sevgin; Ertan, Pelin; Kavaz, Asli; Torun Bayram, Meral; Kalyoncu, Mukaddes; Gulleroglu, Kaan; Kabasakal, Caner; Kasap Demir, Belde; Cicek, Rumeysa Yasemin; Donmez, Osman; Kara, Aslihan; Yavascan, Onder; Ozcelik, Gul; Gezgin Yildirim, Deniz; Guler, Muhammet Akif; Sonmez, Ferah; Poyrazoglu, Hakan; Akman, Sema; Topaloglu, Rezan; Alpay, Harika; Bakkaloglu, Sevcan A., School of Medicine, Taşdemir, Mehmet (ORCID 0000-0002-5579-6339 & YÖK ID 175867); Bilge, İlmay (ORCID 0000-0002-4852-989X & YÖK ID 198907), Leventoglu, Emre; Ozdemir Atikel, Yesim; Nalcacioglu, Hulya; Dursun, Ismail; Dursun, Hasan; Yuruk Yildirim, Zeynep; Yildiz, Nurdan; Kaya Aksoy, Gulsah; Celakil, Mehtap; Demircioglu Kilic, Beltinge; Zirhli Selcuk, Sena; Canpolat, Nur; Kargin Cakici, Evrim; Ozlu, Sare Gulfem; Tulpar, Sebahat; Yuksel, Selcuk; Atmis, Bahriye; Surmeli Doven, Serra; Taner, Sevgin; Ertan, Pelin; Kavaz, Asli; Torun Bayram, Meral; Kalyoncu, Mukaddes; Gulleroglu, Kaan; Kabasakal, Caner; Kasap Demir, Belde; Cicek, Rumeysa Yasemin; Donmez, Osman; Kara, Aslihan; Yavascan, Onder; Ozcelik, Gul; Gezgin Yildirim, Deniz; Guler, Muhammet Akif; Sonmez, Ferah; Poyrazoglu, Hakan; Akman, Sema; Topaloglu, Rezan; Alpay, Harika; Bakkaloglu, Sevcan A., and School of Medicine
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Background/aim: There is limited data on COVID-19 disease in children with kidney disease. We aimed to investigate the characteristics and prognosis of COVID-19 in pediatric nephrology patients in Turkey. Materials and methods: This was a national, multicenter, retrospective cohort study based on an online survey evaluating the data between 11th March 2020 and 11th March 2021 as an initial step of a detailed pediatric nephrology COVID-19 registry. Results: Two hundred and three patients (89 girls and 114 boys) were diagnosed with COVID-19. One-third of these patients (36.9%) were between 10-15 years old. Half of the patients were on kidney replacement therapy: kidney transplant (KTx) recipients (n = 56, 27.5%), patients receiving chronic hemodialysis (n = 33, 16.3%) and those on peritoneal dialysis (PD) (n = 18, 8.9%). Fifty-four (26.6%) children were asymptomatic. Eighty-two (40.3%) patients were hospitalized and 23 (28%) needed intensive care unit admission. Fifty-five percent of the patients were not treated, while the remaining was given favipiravir (20.7%), steroid (16.3%), and hydroxychloroquine (11.3%). Acute kidney injury developed in 19.5% of hospitalized patients. Five (2.4%) had MIS-C. Eighty-three percent of the patients were discharged without any apparent sequelae, while 7 (3.4%) died. One hundred and eight health care staff were infected during the study period. Conclusion: COVID-19 was most commonly seen in patients who underwent KTx and received HD. The combined immunosuppressive therapy and frequent exposure to the hospital setting may increase these patients' susceptibility. Staff infections before vaccination era were alarming, various precautions should be taken for infection control, particularly optimal vaccination coverage., NA
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- 2023
12. Implication ofFOXD2dysfunction in syndromic congenital anomalies of the kidney and urinary tract (CAKUT)
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Riedhammer, Korbinian M., Nguyen, Thanh-Minh T., Koşukcu, Can, Calzada-Wack, Julia, Li, Yong, Saygılı, Seha, Wimmers, Vera, Kim, Gwang-Jin, Chrysanthou, Marialena, Bakey, Zeineb, Kraiger, Markus, Sanz-Moreno, Adrián, Amarie, Oana V, Rathkolb, Birgit, Klein-Rodewald, Tanja, Garrett, Lillian, Hölter, Sabine M., Seisenberger, Claudia, Haug, Stefan, Marschall, Susan, Wurst, Wolfgang, Fuchs, Helmut, Gailus-Durner, Valerie, Wuttke, Matthias, Hrabe de Angelis, Martin, Ćomić, Jasmina, Akgün Doğan, Özlem, Özlük, Yasemin, Taşdemir, Mehmet, Ağbaş, Ayşe, Canpolat, Nur, Çalışkan, Salim, Weber, Ruthild, Bergmann, Carsten, Jeanpierre, Cecile, Saunier, Sophie, Lim, Tze Y., Hildebrandt, Friedhelm, Alhaddad, Bader, Wu, Kaman, Antony, Dinu, Matschkal, Julia, Schaaf, Christian, Renders, Lutz, Schmaderer, Christoph, Meitinger, Thomas, Heemann, Uwe, Köttgen, Anna, Arnold, Sebastian, Ozaltin, Fatih, Schmidts, Miriam, and Hoefele, Julia
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Article - Abstract
BackgroundCongenital anomalies of the kidney and urinary tract (CAKUT) are the predominant cause for chronic kidney disease below 30 years of age. Many monogenic forms have been discovered mainly due to comprehensive genetic testing like exome sequencing (ES). However, disease-causing variants in known disease-associated genes still only explain a proportion of cases. Aim of this study was to unravel the underlying molecular mechanism of syndromic CAKUT in two multiplex families with presumed autosomal recessive inheritance.Methods and ResultsES in the index individuals revealed two different rare homozygous variants inFOXD2,a transcription factor not previously implicated in CAKUT in humans: a frameshift in family 1 and a missense variant in family 2 with family segregation patterns consistent with autosomal-recessive inheritance. CRISPR/Cas9-derivedFoxd2knock-out (KO) mice presented with bilateral dilated renal pelvis accompanied by renal papilla atrophy while extrarenal features included mandibular, ophthalmologic, and behavioral anomalies, recapitulating the phenotype of humans withFOXD2dysfunction. To study the pathomechanism ofFOXD2-dysfunction-mediated developmental renal defects, in a complementary approach, we generated CRISPR/Cas9-mediated KO ofFoxd2in ureteric-bud-induced mouse metanephric mesenchyme cells. Transcriptomic analyses revealed enrichment of numerous differentially expressed genes important in renal/urogenital development, includingPax2andWnt4as well as gene expression changes indicating a cell identity shift towards a stromal cell identity. Histology ofFoxd2KO mouse kidneys confirmed increased fibrosis. Further, GWAS data (genome-wide association studies) suggests thatFOXD2could play a role for maintenance of podocyte integrity during adulthood.ConclusionsIn summary, our data implicate thatFOXD2dysfunction is a very rare cause of autosomal recessive syndromic CAKUT and suggest disturbances of the PAX2-WNT4 cell signaling axis contribute to this phenotype.
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- 2023
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13. Diagnostic and therapeutic management of vesico-ureteral reflux in pediatric kidney transplantation-Results of an online survey on behalf of the European Society for Paediatric Nephrology
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Murer, Luisa, Knops, Noël, de Jong, Huib, Konrad, Martin, Levtchenko, Elena, Jankauskiene, Augustina, Madrid-Aris, Alvaro, Marks, Stephen D., Mattoo, Tej K., Maxted, Andrew, Jahnukainen, Timo, Hooman, Nakisa, Higueras, Walter, Goñi, Maria Herrero, Herthelius, Maria, Henne, Thomas, Grenda, Ryszard, Gessner, Michaela, Gander, Romy, Zirngibl, Matthias, Galiano, Matthias, Fila, Marc, Espinosa-Román, Laura, Esfandiar, Nasrin, Dinçel, Nida Temizkan, Kılıç, Beltinge Demircioğlu, Buder, Kathrin, Dehoux, Laurène, Cornelissen, Marlies, Clothier, Joanna, Cicek, Neslihan, Christian, Martin, Bulum, Burcu, Büscher, Anja, Melgosa-Hijosa, Marta, Luithle, Tobias, Tönshoff, Burkhard, Weitz, Marcus, Zieg, Jakub, Yüksel, Selçuk, Yıldız, Nurdan, Yap, Yok-Chin, Yalçınkaya, Fatma Fatoş, Weber, Lutz T., Mincham, Christine Marie, Alonso-Melgar, Ángel, Ariceta, Gema, Mitsioni, Andromachi, Montini, Giovanni, Awan, Atif, Morgan, Henry, Bakkaloglu, SEVCAN AZİME, Baskin, Esra, Vidal, Enrico, Bekassy, Zivile, Bhimma, Rajendra, Verrina, Enrico Eugenio, Bitzan, Martin, Aki, Fazil Tuncay, Tse, Yincent, Tschumi, Sibylle, Trnka, Peter, Bjerre, Anna Kristina, Torres, Diletta, Topaloğlu, Rezan, Bootsma-Robroeks, Charlotte M., Thumfart, Julia, Teixeira, Ana, Bouts, Antonia, Tasic, Velibor, Taşdemir, Mehmet, Stabouli, Stella, Sinha, Rajiv, Silva, Ana Cristina Simões E., Shenoy, Mohan, Seeman, Tomas, Rus, Rina, Rumyantsev, Alexander, Rubik, Jacek, Roussinov, Dimitar, Reynolds, Ben, Prytula, Agnieszka, Printza, Nikoleta, Parvex, Paloma, Pape, Lars, Özçakar, Z Birsin, Müller-Sacherer, Thomas, Pediatrics, Paediatric Nephrology, and ARD - Amsterdam Reproduction and Development
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Transplantation ,therapy ,vesico-ureteral reflux ,Pediatrics, Perinatology and Child Health ,online survey ,febrile urinary tract infection ,pediatric kidney transplantation ,ureteral implantation - Abstract
© 2022 The Authors. Pediatric Transplantation published by Wiley Periodicals LLC.Background: Vesico-ureteral reflux (VUR) is considered to be a risk factor for recurrent febrile urinary tract infections and impaired renal transplant survival. Methods: An online survey supported by the European Society for Paediatric Nephrology was designed to evaluate current management strategies of VUR in native and transplanted kidneys of recipients aged
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- 2022
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14. Approaches of pediatric nephrologists to hypertensive patients in Turkey (Turkish Pediatric Hypertension Working Group Study)
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Taşdemir, Mehmet, Kasap Demir, B.; Övünç Hacıhamdioğlu, D.; Girişgen, İ.; Dursun, H.; Çivilibal, M.; Benzer, M.; Karaaslan Bıyıklı, N.; Özkayın, N.; Sönmez F., Koç University Hospital, Taşdemir, Mehmet, Kasap Demir, B.; Övünç Hacıhamdioğlu, D.; Girişgen, İ.; Dursun, H.; Çivilibal, M.; Benzer, M.; Karaaslan Bıyıklı, N.; Özkayın, N.; Sönmez F., and Koç University Hospital
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Objective: we aimed to evaluate the approaches of pediatric nephrologists in our country to the management of childhood hypertension. Methods: the pediatric nephrologists in our country were invited to fill out an online questionnaire including 24 questions. The answers were compared between those working in the field for <= 10 years (Group 1, n =74) and >10 years (Group 2, n = 62). Results: of 136 participants (M/F = 101/35), 52% were following a single guideline [31% Fourth Report of 2004, 17% European Society of Hypertension in 2016, and 52% American Academy of Pediatrics in 2017], which is more common in Group 1 (P =.035). The most commonly used guideline was American Academy of Pediatrics of 2017 and Group 2 used Fourth Report of 2004 more commonly (P =.042). The most common choice to diagnose hypertension was office + home + ambulatory blood pressure monitoring (59%). The frequency of screening for end-organ damage at first evaluation was 96%. The time to wait for the effect of lifestyle modifications was 3 months in 52%. The first choice medication was angiotensin-converting enzyme inhibitors (49%) or calcium-channel blockers (48%) in non-obese and angiotensin-converting enzyme inhibitors (74%) in obese children. Calcium-channel blockers were more commonly prescribed as the first choice in non-obese children in Group 1 (P =.035). The most accessible emergency drug was esmolol. Conclusion: despite following recent guidelines, the time spent in the proficiency would change the practices., NA
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- 2022
15. Approaches of Pediatric Nephrologists to Hypertensive Patients in Turkey (Turkish Pediatric Hypertension Working Group Study) [Article]
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Kasap-Demir, Belde, Taşdemir, Mehmet, Övünç-Hacihamdioğlu, Duygu, Girişgen, İlknur, Dursun, Hasan, Çivilibal, Mahmut, and Benzer, Meryem
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Age ,children ,Hypertension ,Pulse-Wave Velocity ,Blood-Pressure ,adolescents ,guidelines ,clinical practice patterns ,Adolescents Reference Values ,Intima-Media Thickness ,Healthy-Children - Abstract
Objective: We aimed to evaluate the approaches of pediatric nephrologists in our country to the management of childhood hypertension. Methods: The pediatric nephrologists in our country were invited to fill out an online questionnaire including 24 questions. The answers were compared between those working in the field for 10 years (Group 2, n = 62). Results: Of 136 participants (M/F = 101/35), 52% were following a single guideline [31% Fourth Report of 2004, 17% European Society of Hypertension in 2016, and 52% American Academy of Pediatrics in 2017], which is more common in Group 1 (P =.035). The most commonly used guideline was American Academy of Pediatrics of 2017 and Group 2 used Fourth Report of 2004 more commonly (P =.042). The most common choice to diagnose hypertension was office + home + ambulatory blood pressure monitoring (59%). The frequency of screening for end-organ damage at first evaluation was 96%. The time to wait for the effect of lifestyle modifications was 3 months in 52%. The first choice medication was angiotensin-converting enzyme inhibitors (49%) or calcium-channel blockers (48%) in non-obese and angiotensin-converting enzyme inhibitors (74%) in obese children. Calcium-channel blockers were more commonly prescribed as the first choice in non-obese children in Group 1 (P =.035). The most accessible emergency drug was esmolol. Conclusion: Despite following recent guidelines, the time spent in the proficiency would change the practices.
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- 2022
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16. COVID-19 in pediatric nephrology centers in Turkey
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LEVENTOĞLU, EMRE, primary, ATİKEL, YEŞİM ÖZDEMİR, additional, NALÇACIOĞLU, HÜLYA, additional, DURSUN, İSMAİL, additional, DURSUN, HASAN, additional, YILDIRIM, ZEYNEP NAGEHAN YÜRÜK, additional, YILDIZ, NURDAN, additional, AKSOY, GÜLŞAH KAYA, additional, TAŞDEMİR, MEHMET, additional, ÇELAKIL, MEHTAP, additional, KILIÇ, BELTİNGE DEMİRCİOĞLU, additional, SELÇUK, ŞENAY ZIRHLI, additional, CANPOLAT, NUR, additional, ÇAKICI, EVRİM KARGIN, additional, and ÖZLÜ, SARE GÜLFEM, additional
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- 2022
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17. Approaches of Pediatric Nephrologists to Hypertensive Patients in Turkey (Turkish Pediatric Hypertension Working Group Study).
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Kasap-Demir, Belde, Taşdemir, Mehmet, Övünç-Hacıhamdioğlu, Duygu, Girişgen, İlknur, Dursun, Hasan, Çivilibal, Mahmut, Benzer, Meryem, Karaaslan-Bıyıklı, Neşe, Özkayın, Neşe, and Sönmez, Ferah
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HYPERTENSION ,NEPHROLOGISTS ,ACE inhibitors ,OVERWEIGHT children ,BLOOD pressure ,MEDICAL offices - Abstract
Objective: We aimed to evaluate the approaches of pediatric nephrologists in our country to the management of childhood hypertension. Methods: The pediatric nephrologists in our country were invited to fill out an online questionnaire including 24 questions. The answers were compared between those working in the field for ≤10 years (Group 1, n =74) and >10 years (Group 2, n = 62). Results: Of 136 participants (M/F = 101/35), 52% were following a single guideline [31% Fourth Report of 2004, 17% European Society of Hypertension in 2016, and 52% American Academy of Pediatrics in 2017], which is more common in Group 1 (P = .035). The most commonly used guideline was American Academy of Pediatrics of 2017 and Group 2 used Fourth Report of 2004 more commonly (P = .042). The most common choice to diagnose hypertension was office +home +ambulatory blood pressure monitoring (59%). The frequency of screening for end-organ damage at first evaluation was 96%. The time to wait for the effect of lifestyle modifications was 3 months in 52%. The first choice medication was angiotensin-converting enzyme inhibitors (49%) or calcium-channel blockers (48%) in non-obese and angiotensin-converting enzyme inhibitors (74%) in obese children. Calcium-channel blockers were more commonly prescribed as the first choice in non-obese children in Group 1 (P = .035). The most accessible emergency drug was esmolol. Conclusion: Despite following recent guidelines, the time spent in the proficiency would change the practices. [ABSTRACT FROM AUTHOR]
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- 2022
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18. Humoral and cellular immune response to SARS-CoV-2 mRNA BNT162b2 vaccine in pediatric kidney transplant recipients compared with dialysis patients and healthy children
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Ruveyda Gulmez, Dogukan Ozbey, Ayse Agbas, Bagdagul Aksu, Nurdan Yildiz, Diana Uckardes, Seha Saygili, Esra Karabag Yilmaz, Zeynep Yuruk Yildirim, Mehmet Tasdemir, Ayca Kiykim, Haluk Cokugras, Nur Canpolat, Ahmet Nayir, Bekir Kocazeybek, Salim Caliskan, Gulmez R., Ozbey D., Agbas A., Aksu B., Yildiz N., Uckardes D., Saygili S., Yilmaz E. K. , Yildirim Z. Y. , Tasdemir M., et al., İstinye Üniversitesi, Tıp Fakültesi, Cerrahi Tıp Bilimleri Bölümü, Mehmet Taşdemir / 0000-0002-5579-6339, Taşdemir, Mehmet, Mehmet Taşdemir / HHX-0612-2022, and Mehmet Taşdemir / 57188732568
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mRNA vaccine ,IGRA ,Nephrology ,Pediatrics, Perinatology and Child Health ,COVID-19 ,BNT162b2 ,Immune response ,Neutralizing antibody ,Anti-SARS-CoV-2 IgG - Abstract
Background: Compared with the general population, the immune response to COVID-19 mRNA vaccines is lower in adult kidney transplant recipients (KTRs). However, data is limited for pediatric KTRs. In this study, we aimed to assess humoral and cellular immune responses to the COVID-19 mRNA vaccine in pediatric KTRs. Methods: This multicenter, prospective, case-control study included 63 KTRs (37 male, aged 12-21 years), 19 dialysis patients, and 19 controls. Humoral (anti-SARS-CoV2 IgG, neutralizing Ab (nAb)) and cellular (interferon-gamma release assay (IGRA)) immune responses were assessed at least one month after two doses of BNT162b2 mRNA vaccine. Results: Among COVID-19 naïve KTRs (n = 46), 76.1% tested positive for anti-SARS-CoV-2 IgG, 54.3% for nAb, and 63% for IGRA. Serum levels of anti-SARS-CoV-2 IgG and nAb activity were significantly lower in KTRs compared to dialysis and control groups (p < 0.05 for all). Seropositivity in KTRs was independently associated with shorter transplant duration (p = 0.005), and higher eGFR (p = 0.007). IGRA titer was significantly lower than dialysis patients (p = 0.009). Twenty (43.4%) KTRs were positive for all immune parameters. Only four of 11 seronegative KTRs were IGRA-positive. COVID-19 recovered KTRs had significantly higher anti-SARS-CoV-2 IgG and nAb activity levels than COVID-19 naïve KTRs (p = 0.018 and p = 0.007, respectively). Conclusions: The humoral and cellular immune responses to SARS-CoV-2 mRNA BNT162b2 vaccine are lower in pediatric KTRs compared to dialysis patients. Further prospective studies are required to demonstrate the clinical efficacy of the mRNA vaccine in KTRs. This prospective study was registered in ClinicalTrials.gov (NCT05465863, registered retrospectively at 20.07.2022). A higher resolution version of the Graphical abstract is available as Supplementary information. 36459243
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- 2022
19. Could plasma based therapies still be considered in selected cases with atypical hemolytic uremic syndrome?
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Sare Gülfem Özlü, Bora Gülhan, Özlem Aydoğ, Emine Atayar, Ali Delibaş, Gönül Parmaksız, Elif Bahat Özdoğan, Elif Çomak, Mehmet Taşdemir, Banu Acar, Zeynep Birsin Özçakar, Rezan Topaloğlu, Oğuz Söylemezoğlu, Fatih Özaltın, Taşdemir, Mehmet, Özlü, Sare Gülfem, Gülhan, Bora, Aydoğ, Özlem, Atayar, Emine, Delibaş, Ali, Parmaksız, Gönül, Özdoğan, Elif Bahat, Çomak, Elif, Acar, Banu, Özçakar, Zeynep Birsin, Topaloğlu, Rezan, Söylemezoğlu, Oğuz, Özaltın, Fatih, and School of Medicine
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Male ,Plasma Exchange ,Atypical hemolytic uremic syndrome ,Treatment ,Plasma infusion ,Plasma exchange ,Outcome ,Endothelial Cells ,Infant ,Antibodies, Monoclonal, Humanized ,Pediatrics ,Kidney Transplantation ,Child, Preschool ,Pediatrics, Perinatology and Child Health ,Humans ,Female ,Child ,Atypical Hemolytic Uremic Syndrome - Abstract
Background: atypical hemolytic uremic syndrome (aHUS) occurs due to defective regulation of the alternative complement pathway (ACP) on vascular endothelial cells. Plasma based therapy (PT) was the mainstay of the treatment for aHUS for many years until the introduction of therapies targeting blockage of the complement system. The aim of this study was to evaluate patients with aHUS who had been treated with plasma based therapies alone. Methods: the outcomes of seven genetically confirmed aHUS patients (2 girls, 5 males) were evaluated by means of clinical presentation, response to plasma therapy, course of the disease during the follow-up period and last status. Results: the median age of the patients at admission was 6.7 years (IQR 0.7-7.8). Three patients received plasma exchange therapy and the other four patients were treated with plasma infusions. One patient was lost to follow-up after one year; the median duration of follow-up for other patients was 3.7 years (IQR 2.7-6.5). During the follow up, two patients from our historical records when complement blocking therapies had not been in clinical use yet in Turkey, underwent kidney transplantation. One transplant patient experienced an acute rejection episode without graft loss. The remaining five patients had a glomerular filtration rate of more than 90 ml/min./1.73 m(2) at the last visit. Conclusion: although we had a relatively small patient population, our findings indicate that PT might still be considered in selected patients particularly in countries where complement blocking therapies are difficult to reach due to their unavailability or costs that are not covered by the health care systems., Hacettepe University Scientific Research and Development Office
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- 2022
20. A case of bartonellosis mimicking systemic lupus erythematosus
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Manolya Kara, Gul Nihal Ozdemir, Mehmet Tasdemir, Serap Ata, Belma Karini, Eldar Valiyev, Ilknur Tugal Tutkun, Gulsen Kose, Ozan Ozkaya, İstinye Üniversitesi, Tıp Fakültesi, Dahili Tıp Bilimleri Bölümü, Emine Manolya Kaya / 0000-0001-6234-7024, Gül Nihal Özdemir / 0000-0002-3204-4353, Mehmet Taşdemir / 0000-0002-5579-6339, Ozan Özkaya / 0000-0002-0198-1221, Kara, Emine Manolya, Özdemir, Gül Nihal, Taşdemir, Mehmet, Özkaya, Ozan, Emine Manolya Kara / CXW-4939-2022, Gül Nihal Özdemir / AAO-9962-2020, Mehmet Taşdemir / V-7413-2017, Ozan Özkaya / AAO-2136-2020, Emine Manolya Kara / 57213122996, Gül Nihal Özdemir / 57208780173, Mehmet Taşdemir / 57963061000, and Gülşen Köse / 57962535800
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Ophthalmology ,General Medicine ,Antinuclear Antibody ,Bartonella ,Systemic Lupus Erythematosus - Abstract
Background and aim Cat-scratch disease (CSD) is a systemic bacterial infection caused by Bartonella henselae. The disease is typically characterized by regional lymphadenopathy developing after scratches from domestic or feral cats. Rarely, systemic involvement may be observed. The co-occurrence with glomerulonephritis and positive antinuclear antibody (ANA) tests have been reported before. In these cases, the disease can be misdiagnosed as systemic lupus erythematosus. Ocular involvement occurs in 5%–10% of the cases with CSD, and neuroretinitis is among the common manifestations. Administration of corticosteroids (CSs) in addition to antibiotics has been shown to improve prognosis in neuroretinitis cases. However, the optimal dose and duration, remain ill-defined. Case report In this article, we present an 11-year-old girl with CSD and neuroretinitis with a positive ANA test and hematuria, who benefited from high-dose methyl-prednisolone and antibiotics. Conclusion Further research is warranted in order to determine the dose and duration of CSs in the treatment of Bartonella neuroretinitis.
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- 2022
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