Browsing by Author "Somer, Ayper"

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Abatacept as a long-term targeted therapy for LRBA deficiency
(Elsevier, 2019-12) Kiykim, Ayça; Ogulur, İsmail; Dursun, Esra; Dogruel, Dilek; Karaca, Neslihan Edeer; Cogurlu, Mujde Tuba; Bilir, Ozlem Arman; Cansever, Murat; Kapakli, Hasan; Baser, Dilek; Kasap, Nurhan; Kutlug, Seyhan; Altintas, Derya Ufuk; Al-Shaibi, Ahmad; Agrebi, Nourhen; Kara, Manolya; Guven, Ayla; Somer, Ayper; Aydogmus, Cigdem; Ayaz, Nuray Aktay; Metin, Ayse; Aydogan, Metin; Uncuoglu, Aysen; Patiroglu, Turkan; Yildiran, Alisan; Guner, Sukru Nail; Keles, Sevgi; Reisli, Ismail; Aksu, Guzide; Kutukculer, Necil; Yilmaz, Mustafa; Karakoc-Aydiner, Elif; Lo, Bernice; Ozan, Ahmet; Chatila, Talal A.; Barıs, Safa; Çekiç, Şükrü; Kılıç, Sara Şebnem; Uludağ Üniversitesi/Tıp Fakültesi/Dahili Bilimler/Çocuk Sağlığı ve Hastalıkları; Uludağ Üniversitesi/Tıp Fakültesi/Dahili Bilimler/Çocuk Sağlığı ve Hastalıkları; 0000-0002-9574-1842; 0000-0001-8571-2581; L-1933-2017; 57094682600; 7102365439
BACKGROUND: LPS-responsive beige-like anchor (LRBA) deficiency presents with susceptibility to infections, autoimmunity, and lymphoproliferation. The long-term efficacy of cytotoxic T-lymphocyte-associated antigen 4-immunoglobulin (abatacept) as targeted therapy for its immune dysregulatory features remains to be established. OBJECTIVE: To determine the clinical and immunologic features of LRBA deficiency and long-term efficacy of abatacept treatment in controlling the different disease manifestations. METHODS: Twenty-two LRBA-deficient patients were recruited from different immunology centers and followed prospectively. Eighteen patients on abatacept were evaluated every 3 months for long-term clinical and immunologic responses. LRBA expression, lymphocyte subpopulations, and circulating T follicular helper cells were determined by flow cytometry. RESULTS: The mean age of the patients was 13.4 +/- 7.9 years, and the follow-up period was 3.4 +/- 2.3 years. Recurrent infections (n = 19 [86.4%]), immune dysregulation (n = 18 [81.8%]), and lymphoproliferation (n = 16 [72.7%]) were common clinical features. The long-term benefits of abatacept in 16 patients were demonstrated by complete control of lymphoproliferation and chronic diarrhea followed by immune dysregulation, most notably autoimmune cytopenias. Weekly or every other week administration of abatacept gave better disease control compared with every 4 weeks. There were no serious side effects related to the abatacept therapy. Circulating T follicular helper cell frequencies were found to be a reliable biomarker of disease activity, which decreased on abatacept therapy in most subjects. However, high circulating T follicular helper cell frequencies persisted in 2 patients who had a more severe disease phenotype that was relatively resistant to abatacept therapy. CONCLUSIONS: Long-term abatacept therapy is effective in most patients with LRBA deficiency.
Clinical practical recommendations for Turkish national vaccination schedule for previously healthy children (national vaccination schedule) and vaccines not included in the schedule - 2015
(Aves Yayincilik, Ibrahim Kara, 2015-03-01) Arısoy, Emin Sami; Çiftiç, Ergin; Hacımustafaoğlu, Mustafa; HACIMUSTAFAOĞLU, MUSTAFA KEMAL; Kara, Ateş; Kuyucu, Necdet; Somer, Ayper; Vardar, Fadıl; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Çocuk Sağlığı ve Hastalıkları Anabilim Dalı.; 0000-0003-4646-660X; 0000-0002-1654-3232; 0000-0002-6721-4105; I-9081-2013; H-3094-2018; W-2756-2017; AAE-5459-2020
Dock8 deficiency and a diagnostic score to differentiate it from other Hyper-IGE syndromes
(Springer/Plenum Publishers, 2012-09) Engelhardt, K. R.; Gertz, E. M.; Keleş, S.; Schaeffer, Alejandro A.; Ceja, R.; Sassi, A.; Massaad, M. J.; Mellouli, F.; Benmustapha, I.; Khemiri, M.; Etzioni, A.; Freeman, A. F.; Thiel, J.; Schulze, I.; Al-Herz, W.; Metin, A.; Sanal, O.; Yeganeh, M.; Niehues, T.; Siepermann, K.; Ünal, E.; Patıroğlu, T.; Dasouki, M.; Yılmaz, Mustafa; Genel, F.; Aytekin, C.; Kütükçüler, N.; Somer, Ayper; Kılıç, M.; Reisli, I.; Camcıoğlu, Y.; Gennery, A. R.; Cant, A. J.; Jones, A.; Gaspar, H. B.; Arkwright, P. D.; Pietrogrande, M. C.; Baz, Z.; Al-Tamemi, Salem; Lougaris, V.; Lefranc, G.; Megarbane, Andre; Boutros, J.; Galal, N.; Bejaoui, Mohamed; Barbouche, R.; Geha, R. S.; Chatila, T. A.; Grimbacher, B.; Kılıç, Sara Şebnem; Uludağ Üniversitesi/Tıp Fakültesi/Çocuk Sağlığı ve Hastalıkları Anabilim Dalı/Çocuk İmmünolojisi Bölümü.; AAH-1658-2021
DOCK8 deficiency and diagnostic guidelines for hyper-IgE syndromes
(Wiley, 2012-11) Engelhardt, K.; Gertz, E.; Keleş, S.; Schaeffer, A.; Ceja, R.; Sassi, A.; Graham, L.; Massaad, M.; Mellouli, F.; Benmustapha, I.; Khemiri, M.; Etzioni, A.; Freeman, A.; Thiel, J.; Schulze, I.; Al-Herz, W.; Metin, A.; Sanal, O.; Yeganeh, M.; Niehues, T.; Siepermann, K.; Weinspach, S.; Ünal, E.; Patıroğlu, T.; Dasouki, M.; Yılmaz, Mustafa; Genel, F.; Aytekin, C.; Kütükçüler, N.; Somer, Ayper; Kılıç, M.; Reisli, I.; Camcıoğlu, Y.; Gennery, A.; Cant, A.; Jones, A.; Gaspar, H.; Pietrogrande, M.; Baz, Z.; Al-Tamemi, Salem; Lougaris, V.; Lefranc, G.; Megarbane, Andre; Boutros, J.; Galal, N.; Bejaoui, M.; Barbouche, M.; Geha, R.; Chatila, T.; Grimbacher, B.; Kılıç, Sara Şebnem; Uludağ Üniversitesi/Tıp Fakültesi/Çocuk Sağlığı ve Hastalıkları Anabilim Dalı/Çocuk İmmünolojisi Bölümü.; AAH-1658-2021
Education of healthcare personnel working with pediatric patients during covid-19 pandemic within the framework of infection control
(Aves Yayıncılık, 2020-11-28) Oygar, Pembe Derin; Büyükcam, Ayşe; Bal, Zümrüt Şahbudak; Dalgıc, Nazan; Bozdemir, Sefika Elmas; Karbuz, Adem; Çetin, Benhur Şırvan; Kara, Yalçın; Çetin, Ceren; Hatipoğlu, Nevin; Uygun, Hatice; Aygün, Fatma Deniz; Torun, Selda Hançerli; Okur, Dicle Şener; Çiftdoğan, Dilek Yılmaz; Kara, Tuğçe Tural; Yahşi, Aysun; Özer, Arife; Demir, Sevliya Ocal; Akkoç, Gülsen; Turan, Cansu; Salı, Enes; Şen, Semra; Erdeniz, Emine Hafize; Kara, Soner Sertan; Emiroğlu, Melike; Erat, Tuğba; Aktürk, Hacer; Gürlevik, Sibel Laçinel; Sütcü, Murat; Aydın, Zeynep Gökçe Gayretli; Atıkan, Başak Yıldız; Yeşil, Edanur; Güner, Gizem; Çelebi, Emel; Efe, Kadir; İsançlı, Didem Kızmaz; Durmuş, Habibe Selver; Tekeli, Seher; Karaarslan, Ayşe; Bülbül, Lida; Almış, Habip; Kaba, Özge; Keles, Yıldız Ekemen; Yazıcıoğlu, Bahadir; Oğuz, Şerife Bahtiyar; Ovalı, Hüsnü Fahri; Doğan, Hazal Helin; Çelebi, Solmaz; Çakır, Deniz; Karasulu, Burcugül; Alkan, Gülsüm; Yenidoğan, İrem; Gül, Doruk; Küçükalioğlu, Burcu Parıltan; Avcu, Gülhadiye; Kukul, Musa Gürel; Bilen, Melis; Yaşar, Belma; Üstün, Tuğba; Kılıç, Ömer; Akın, Yasemin; Cebeci, Sinem Oral; Turgut, Mehmet; Yanartaş, Mehpare Sarı; Şahin, Aslıhan; Arslanoğlu, Sertaç; Elevli, Murat; Öz, Sadiye Kübra Tuter; Hatipoğlu, Halil; Erkum, İlyas Tolga; Demirbuğa, Asuman; Özçelik, Taha; Sarı, Emine Ergül; Akkuş, Gökhan; Hatipoğlu, Sadık Sami; Dinleyici, Ener Cağrı; Hacımustafaoğlu, Mustafa; Özkinay, Ferda; Kuruğol, Zafer; Cengiz, Ali Bülent; Somer, Ayper; Tezer, Hasan; Kara, Ateş; ÇELEBİ, SOLMAZ; TURAN, CANSU; HACIMUSTAFAOĞLU, MUSTAFA KEMAL; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Çocuk Sağlığı ve Hastalıkları Anabilim Dalı/Çocuk Enfeksiyon Hastalıkları Bilim Dalı.; IVB-4013-2023; JHN-1091-2023; CTG-5805-2022
Objective: In the early stages of any epidemic caused by new emerging pathogens healthcare personnel is subject to a great risk. Pandemic caused by SARS-CoV-2, proved to be no exception. Many healthcare workers died in the early stages of pandemic due to inadequate precautions and insufficient protection. It is essential to protect and maintain the safety of healthcare personnel for the confinement of pandemic as well as continuity of qualified healthcare services which is already under strain. Educating healthcare personnel on appropiate use of personal protective equipment (PPE) is as essential as procuring them.Material and Methods: A survey is conducted on 4927 healthcare personnel working solely with pediatric patients from 32 different centers. Education given on PPE usage were questioned and analyzed depending on age, sex, occupation and region.Results: Among four thousand nine hundred twelve healthcare personnel from 32 different centers 91% (n=4457) received education on PPE usage. Of those who received education only 36% was given both theoretical and applied education. Although there was no differences among different occupation groups, receiving education depended on regions.Conclusion: It is essential to educate healthcare personnel appropiately nationwidely for the continuity of qualified healthcare services during the pandemic.
The epidemiology and economic impact of varicella-related hospitalizations in Turkey from 2008 to 2010: A nationwide survey during the pre-vaccine era (VARICOMP study)
(Springer, 2012-05) Dinleyici, Ener Çağrı; Kurugöl, Zafer; Türel, Özden; Hatipoğlu, Nevin; Devrim, İlker; Ağın, Hasan; Günay, İlker; Yaşa, Olcay; Ergüven, Müferet; Bayram, Nuri; Kızıldemir, Ali; Alhan, Emre; Kocabaş, Emine; Tezer, Hasan; Aykan, H. Hakan; Dalgıç, Nazan; Kılıç, Betül; Şensoy, Gülnar; Belet, Nursen; Kulcu, Nihan Uygur; Say, Aysu; Taş, Mehmet Ali; Çiftçi, Ergin; İnce, Erdal; Özdemir, Halil; Emiroğlu, Melike; Odabaş, Dursun; Yargıç, Zeynel Abidin; Nuhoğlu, Çağatay; Çarman, Kürşat Bora; Elevli, Murat; Ekici, Zahide; Çelik, Ümit; Kondolot, Meda; Öztürk, Mustafa; Tapısız, Anıl; Özen, Metehan; Tepeli, Harun; Parlakay, Aslınur; Kara, Ateş; Somer, Ayper; Çalışkan, Bahar; Velipaşalıoğlu, Sevtap; Öncel, Selim; Arısoy, Emin Sami; Güler, Ekrem; Dalkıran, Tahir; Aygün, Denizmen; Akarsu, Saadet; Çelebi, Solmaz; Hacımustafaoğlu, Mustafa; Uludağ Üniversitesi/Tıp Fakültesi.; 0000-0002-3536-0263; 0000-0003-4646-660X; ENK-4130-2022; CTG-5805-2022; 7006095295; 6602154166
Varicella can cause complications that are potentially serious and require hospitalization. Our current understanding of the causes and incidence of varicella-related hospitalization in Turkey is limited and sufficiently accurate epidemiological and economical information is lacking. The aim of this study was to estimate the annual incidence of varicella-related hospitalizations, describe the complications, and estimate the annual mortality and cost of varicella in children. VARICOMP is a multi-center study that was performed to provide epidemiological and economic data on hospitalization for varicella in children between 0 and 15 years of age from October 2008 to September 2010 in Turkey. According to medical records from 27 health care centers in 14 cities (representing 49.3% of the childhood population in Turkey), 824 children (73% previously healthy) were hospitalized for varicella over the 2-year period. Most cases occurred in the spring and early summer months. Most cases were in children under 5 years of age, and 29.5% were in children under 1 year of age. The estimated incidence of varicella-related hospitalization was 5.29-6.89 per 100,000 in all children between 0-15 years of age in Turkey, 21.7 to 28 per 100,000 children under 1 year of age, 9.8-13.8 per 100,000 children under 5 years of age, 3.96-6.52 per 100,000 children between 5 and 10 years of age and 0.42 to 0.71 per 100,000 children between 10 and 15 years of age. Among the 824 children, 212 (25.7%) were hospitalized because of primary varicella infection. The most common complications in children were secondary bacterial infection (23%), neurological (19.1%), and respiratory (17.5%) complications. Secondary bacterial infections (p < 0.001) and neurological complications (p < 0.001) were significantly more common in previously healthy children, whereas hematological complications (p < 0.001) were more commonly observed in children with underlying conditions. The median length of the hospital stay was 6 days, and it was longer in children with underlying conditions (< 0.001). The median cost of hospitalization per patient was $338 and was significantly higher in children with underlying conditions (p < 0.001). The estimated direct annual cost (not including the loss of parental work time and school absence) of varicella-related hospitalization in children under the age of 15 years in Turkey was $856,190 to $1,407,006. According to our estimates, 882 to 1,450 children are hospitalized for varicella each year, reflecting a population-wide occurrence of 466-768 varicella cases per 100,000 children. In conclusion, this study confirms that varicella-related hospitalizations are not uncommon in children, and two thirds of these children are otherwise healthy. The annual cost of hospitalization for varicella reflects only a small part of the overall cost of this disease, as only a very few cases require hospital admission. The incidence of this disease was higher in children < 1 year of age, and there are no prevention strategies for these children other than population-wide vaccination. Universal vaccination is therefore the only realistic option for the prevention of severe complications and deaths. The surveillance of varicella-associated complications is essential for monitoring of the impact of varicella immunization.
The first camps in Turkey for asthmatic children: six years' experience
(Türk Milli Pediatri Derneği, 2005) Öneş, Ülker; Yazıcıoğlu, Mehtap; Güler, Nermin; Tamay, Zeynep; Somer, Ayper; Sapan, Nihat; Canıtez, Yakup; Uludağ Üniversitesi/Tıp Fakültesi/Pediatri Anabilim Dalı.; 6602156485; 8988954700
The first asthma camp in Turkey was organized for one week in Iznik in September 1996. The camps were continued annually around the same time of the year in 1997, 1998, 2000, and in the consecutive years thereafter. The camp includes educational, sports and social activities. Children's knowledge about asthma and their attitudes towards physical and social activities were evaluated by a questionnaire. Pulmonary function tests were performed on the first and last day of the camp. There was no statistically significant difference between the mean spirometric values of the first and last day of the camp in spite of a vigorous physical and social program. Children enhanced their skills and knowledge about asthma and gained self-confidence in participating in sportive and social activities during the camp program. They did not experience any emergency room visit in the following year.
Inappropriate antimicrobial use in Turkish pediatric hospitals: A multicenter point prevalence survey
(Elsevier, 2010-01) Ceyhan, Mehmet; Yıldırım, İnci; Ecevit, Çiğdem Ömür; Aydoğan, Aysel; Örnek, Ahmet Haydar; Salman, Nuran; Somer, Ayper; Hatipoğlu, Nevin; Camcıoğlu, Yıldız; Alhan, Emre; Hacımustafaoğlu, Mustafa Kemal; Çelebi, Solmaz; İnan, Dilara; Kurt, Neşe Çitak; Öner, Ahmet Faik; Gülümser, Özlem; Güneş, Adalet Meral; Coşkun, Yavuz; Çelik, Ümit; Uludağ Üniversitesi/Tıp Fakültesi/Çocuk Sağlığı ve Hastalıkları Anabilim Dalı.; 9843305700
Objectives: Although well-defined principles of rational antimicrobial use are available, inappropriate prescribing patterns are reported worldwide. Accurate information on the usage of antimicrobials, including factors associated with and influencing their use, is valuable for improving the quality of prescription practices. Methods: In this cross-sectional point prevalence survey, data on patients hospitalized in 12 different children's hospitals were collected on a single day. Appropriateness of prescription was compared between the types of antimicrobials prescribed, indications, wards, and presence of/consultation with an infectious disease physician (IDP). Results: A total 711 of 1302 (54.6%) patients evaluated were receiving one or more antimicrobial drugs. The antimicrobial prescription rate was highest in pediatric intensive care (75.7%) and lowest in the surgery wards (37.0%). Of the 711 patients receiving antimicrobials, 332 patients (46.7%) were found to be receiving at least one inappropriately prescribed drug. Inappropriate use was most frequent in surgery wards (80.2%), while it was less common in oncology wards (31.8%; p < 0.001). Respiratory tract infection was the most common indication for antimicrobial use (29.4%). Inappropriate use was more common in deep-seated infections (54.7%) and respiratory infections (56.5%). Fluoroquinolones were used inappropriately more than any other drugs (81.8%, p = 0.021). Consultation with an IDP appears to increase appropriate antimicrobial use (p = 0.008). Conclusions: Inappropriate antimicrobial use remains a common problem in Turkish pediatric hospitals. Consultation with an IDP and prescribing antimicrobial drugs according to microbiological test results could decrease the inappropriate use of antimicrobials.
Inherited and acquired immunodeficiencies underlying tuberculosis in childhood
(Wiley, 2015-03-01) Boisson-Dupuis, Stephanie; Bustamante, Jacinta; El-Baghdadi, Jamila; Camcioglu, Yildiz; Parvaneh, Nima; El Azbaoui, Safaa; Agader, Aomar; Hassani, Amal; El Hafidi, Naima; Mrani, Nidal Alaoui; Jouhadi, Zineb; Ailal, Fatima; Najib, Jilali; Reisli, İsmail; Zamani, Adil; Yosunkaya, Sebnem; Gülle-Girit, Saniye; Yıldıran, Alişan; Cipe, Funda Erol; Torun, Selda Hançerli; Metin, Ayşe; Atıkan, Başak Yıldız; Hatipoğlu, Nevin; Aydoğmuş, Çiğdem; Kılıç, Sara Şebnem; Doğu, Figen; Karaca, Neslihan; Aksu, Güzide; Kütükcüler, Necil; Keser-Emiroğlu, Melike; Somer, Ayper; Tanır, Gönül; Aytekin, Caner; Adimi, Parisa; Mahdaviani, Seyed Alireza; Mamishi, Setareh; Bousfiha, Aziz; Sanal, Ozden; Mansouri, Davood; Casanova, Jean-Laurent; Abel, Laurent; KILIÇ GÜLTEKİN, SARA ŞEBNEM; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Pediatrik İmmünoloji Anabilim Dalı.; 0000-0001-8571-2581; AAH-1658-2021
Tuberculosis (TB), caused by Mycobacterium tuberculosis (M.tb) and a few related mycobacteria, is a devastating disease, killing more than a million individuals per year worldwide. However, its pathogenesis remains largely elusive, as only a small proportion of infected individuals develop clinical disease either during primary infection or during reactivation from latency or secondary infection. Subacute, hematogenous, and extrapulmonary disease tends to be more frequent in infants, children, and teenagers than in adults. Life-threatening primary TB of childhood can result from known acquired or inherited immunodeficiencies, although the vast majority of cases remain unexplained. We review here the conditions conferring a predisposition to childhood clinical diseases caused by mycobacteria, including not only M.tb but also weakly virulent mycobacteria, such as BCG vaccines and environmental mycobacteria. Infections with weakly virulent mycobacteria are much rarer than TB, but the inherited and acquired immunodeficiencies underlying these infections are much better known. Their study has also provided genetic and immunological insights into childhood TB, as illustrated by the discovery of single-gene inborn errors of IFN- immunity underlying severe cases of TB. Novel findings are expected from ongoing and future human genetic studies of childhood TB in countries that combine a high proportion of consanguineous marriages, a high incidence of TB, and an excellent clinical care, such as Iran, Morocco, and Turkey.
Peak expiratory flow rates in healthy Turkish children living in Istanbul, Turkey
(Ocean Side Publications, 2004) Öneş, Ülker; Somer, Ayper; Dişçi, Rian; Güler, Nermin; Sapan, Nihat; Uludağ Üniversitesi/Tıp Fakültesi/Çocuk Sağlığı ve Hastalıkları Anabilim Dalı.; 6602156485
In the evaluation and management of bronchial asthma, simple instruments for measurements of the peak expiratory flow (PEF) rate are needed. The aim of this study was to determine normal PEF values of Turkish children living in Istanbul. This is the largest study conducted in Turkey. In a cross-sectional study, we measured PEF in 2791 healthy schoolchildren (1468 boys and 1323 girls) aged 7-14 years, with a Mini Wright peak flow meter. We entered height, age, and sex into the regression equation. The equation for prediction of PEF in boys was calculated as (3.5 X height [cm]) + (9.2 X age [years]) - 256.5, (p < 0.0001; r = 0.83) and for girls as (3.3 X height [cm]) + (10.2 X age [years]) - 263.7 (p < 0.0001; r = 0.81). We found that PEF values of Turkish children were similar to British and Danish children, but significant differences were noted with Greek, Irish, Mexican American, African-American, and white American children. Our results were significantly lower compared with another study conducted in Adana, a small southern city (<1 million inhabitants) in Turkey. Istanbul being a cosmopolitan big city (>7 millions inhabitants) can reflect more reliably real PEF values of Turkish children. We concluded that our findings would serve as an important basis for preparing centile curves for normal PEF values for Turkish children.
SARS-CoV-2 seropositivity among pediatric health care personnel after the first peak of the pandemic: Nationwide surveillance in Turkey
(Elsevier, 2021-09-22) Oygar, Pembe Derin; Büyükçam, Ayşe; Bal, Zümrüt Şahbudak; Dalgıç, Nazan; Bozdemir, Şefika Elmas; Karbuz, Adem; Çetin, Benhür Şırvan; Kara, Yalçın; Çetin, Ceren; Hatipoğlu, Nevin; Uygun, Hatice; Aygün, Fatma Deniz; Torun, Selda Hançerli; Okur, Dicle Şener; Çiftdoğan, Dilek Yılmaz; Kara, Tuğçe Tural; Yahşi, Aysun; Özer, Arife; Demir, Sevliya Öcal; Akkoç, Gülsen; Turan, Cansu; Salı, Enes; Şen, Semra; Erdeniz, Emine Hafize; Kara, Soner Sertan; Emiroğlu, Melike; Erat, Tuğba; Aktürk, Hacer; Gürlevik, Sibel Laçinel; Sütcü, Murat; Aydın, Zeynep Gökçe Gayretli; Atıkan, Başak Yıldız; Yeşil, Edanur; Güner, Gizem; Çelebi, Emel; Efe, Kadir; İsançlı, Didem Kızmaz; Durmuş, Habibe Selver; Tekeli, Seher; Karaaslan, Ayşe; Bülbül, Lida; Almış, Habip; Kaba, Özge; Keleş, Yıldız Ekemen; Yazıcıoğlu, Bahadır; Oğuz, Şerife Bahtiyar; Ovalı, Hüsnü Fahri; Doğan, Hazal Helin; Çelebi, Solmaz; Çakır, Deniz; Karasulu, Burcugül; Alkan, Gülsüm; Yenidoğan, İrem; Gül, Doruk; Küçükalioğlu, Burcu Parıltan; Avcu, Gülhadiye; Kukul, Musa Gürel; Bilen, Melis; Yaşar, Belma; Üstün, Tuğba; Kılıç, Ömer; Akın, Yasemin; Cebeci, Sinem Oral; Bucak, İbrahim Hakan; Yanartaş, Mehpare Sarı; Şahin, Aslıhan; Arslanoğlu, Sertaç; Elevli, Murat; Çoban, Rabia; Öz, Sadiye Kübra Tüter; Hatipoğlu, Halil; Erkum, İlyas Tolga; Turgut, Mehmet; Demirbuğa, Asuman; Özçelik, Taha; Çiftci, Diclehan; Sarı, Emine Ergül; Akkuş, Gökhan; Hatipoğlu, Sadık Sami; Dinleyici, Ener Çağrı; Hacımustafaoğlu, Mustafa; Özkınay, Ferda; Kuruğol, Zafer; Cengiz, Ali Bülent; Somer, Ayper; Tezer, Hasan; Kara, Ateş; TURAN, CANSU; ÇELEBİ, SOLMAZ; HACIMUSTAFAOĞLU, MUSTAFA KEMAL; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Çocuk Enfeksiyon Hastalıkları Anabilim Dalı.; IVB-4013-2023; JHN-1091-2023; CTG-5805-2022
Background: Understanding SARS-CoV-2 seroprevalence among health care personnel is important to ex-plore risk factors for transmission, develop elimination strategies and form a view on the necessity and frequency of surveillance in the future.Methods: We enrolled 4927 health care personnel working in pediatric units at 32 hospitals from 7 different regions of Turkey in a study to determine SARS Co-V-2 seroprevalence after the first peak of the COVID-19 pandemic. A point of care serologic lateral flow rapid test kit for immunoglobulin (Ig)M/IgG was used. Seroprevalence and its association with demographic characteristics and possible risk factors were analyzed.Results: SARS-CoV-2 seropositivity prevalence in health care personnel tested was 6.1%. Seropositivity was more common among those who did not universally wear protective masks (10.6% vs 6.1%). Having a COVID-19-positive co-worker increased the likelihood of infection. The least and the most experienced personnel were more likely to be infected. Most of the seropositive health care personnel (68.0%) did not suspect that they had previously had COVID-19.Conclusions: Health surveillance for health care personnel involving routine point-of-care nucleic acid testing and monitoring personal protective equipment adherence are suggested as important strategies to protect health care personnel from COVID-19 and reduce nosocomial SARS-CoV-2 transmission. (C) 2021 The Author(s). Published by Elsevier Ltd on behalf of International Society for Infectious Diseases.
The extended clinical phenotype of 64 patients with dedicator of cytokinesis 8 deficiency
(Mosby-Elsevier, 2015-08-01) Engelhardt, Karin R.; Gertz, Michael E.; Keleş, Sevgi; Schaeffer, Alejandro A.; Sigmund, Elena C.; Glocker, Cristina; Saghafi, Shiva; Pourpak, Zahra; Ceja, Ruben; Sassi, Atfa; Graham, Laura E.; Massaad, Michel J.; Mellouli, Fethi; Ben-Mustapha, Imen; Khemiri, Monia; Kılıç, Sara Şebnem; Etzioni, Amos; Freeman, Alexandra F.; Thiel, Jens; Schulze, Ilka; Al-Herz, Waleed; Metin, Ayse; Sanal, Oezden; Tezcan, Ilhan; Yeganeh, Mehdi; Niehues, Tim; Dueckers, Gregor; Weinspach, Sebastian; Patiroglu, Turkan; Ünal, Ekrem; Dasouki, Majed; Yılmaz, Mustafa; Genel, Ferah; Aytekin, Caner; Kütükçüler, Necil; Somer, Ayper; Kılıç, Mehmet; Reisli, Ismail; Camcioğlu, Yıldız; Gennery, Andrew R.; Cant, Andrew J.; Jones, Alison; Gaspar, Bobby H.; Arkwright, Peter D.; Pietrogrande, Maria C.; Baz, Zeina; Al-Tamemi, Salem; Lougaris, Vassilios; Lefranc, Gerard; Megarbane, Andre; Boutros, Jeannette; Galal, Nermeen; Bejaoui, Mohamed; Barbouche, Mohamed-Ridha; Geha, Raif S.; Chatila, Talal A.; Grimbacher, Bodo; KILIÇ GÜLTEKİN, SARA ŞEBNEM; Uludağ Üniversitesi/Tıp Fakültesi/Pediatrik İmmünoloji Anabilim Dalı.; AAH-1658-2021
Background: Mutations in dedicator of cytokinesis 8 (DOCK8) cause a combined immunodeficiency (CID) also classified as autosomal recessive (AR) hyper-IgE syndrome (HIES). Recognizing patients with CID/HIES is of clinical importance because of the difference in prognosis and management.Objectives: We sought to define the clinical features that distinguish DOCK8 deficiency from other forms of HIES and CIDs, study the mutational spectrum of DOCK8 deficiency, and report on the frequency of specific clinical findings.Methods: Eighty-two patients from 60 families with CID and the phenotype of AR-HIES with (64 patients) and without (18 patients) DOCK8 mutations were studied. Support vector machines were used to compare clinical data from 35 patients with DOCK8 deficiency with those from 10 patients with AR-HIES without a DOCK8 mutation and 64 patients with signal transducer and activator of transcription 3 (STAT3) mutations.Results: DOCK8-deficient patients had median IgE levels of 5201 IU, high eosinophil levels of usually at least 800/mu L (92% of patients), and low IgM levels (62%). About 20% of patients were lymphopenic, mainly because of low CD4(+) and CD8(+) T-cell counts. Fewer than half of the patients tested produced normal specific antibody responses to recall antigens. Bacterial (84%), viral (78%), and fungal (70%) infections were frequently observed. Skin abscesses (60%) and allergies (73%) were common clinical problems. In contrast to STAT3 deficiency, there were few pneumatoceles, bone fractures, and teething problems. Mortality was high (34%). A combination of 5 clinical features was helpful in distinguishing patients with DOCK8 mutations from those with STAT3 mutations.Conclusions: DOCK8 deficiency is likely in patients with severe viral infections, allergies, and/or low IgM levels who have a diagnosis of HIES plus hypereosinophilia and upper respiratory tract infections in the absence of parenchymal lung abnormalities, retained primary teeth, and minimal trauma fractures.
The national vaccination schedule in previously healthy children: The practical recommendations about additional vaccines
(Aves Yayıncılık, 2014-03-01) Arısoy, Emin Sami; Ceyhan, Mehmet; Çiftci, Ergin; Hacımustafaoğlu, Mustafa; Kara, Ateş; Kuyucu, Necdet; Somer, Ayper; Vardar, Fadıl; Arısoy, Emin Sami; Ceyhan, Mehmet; Çiftci, Ergin; HACIMUSTAFAOĞLU, MUSTAFA KEMAL; Kara, Ateş; Kuyucu, Necdet; Somer, Ayper; Vardar, Fadıl; Uludağ Üniversitesi/Tıp Fakültesi/Çocuk Enfeksiyon Hastalıkları Anabilim Dalı.; 0000-0003-2839-2547; 0000-0003-4646-660X; 0000-0002-1654-3232; 0000-0002-6721-4105; H-3094-2018; EQC-2857-2022; W-2756-2017; CTG-5805-2022; I-9081-2013; FGO-7019-2022; AAE-5459-2020; CGC-3104-2022
Vaccination in previously-healthy children: Practice recommendations on vaccines included and not included in the national immunization schedule of the Republic of Turkey – 2020
(AVES, 2020-09-15) Arısoy, Emin Sami; Çiftçi, Ergin; Kara, Ateş; Kurugöl, Zafer; Somer, Ayper; Tezer, Hasan; Hacımustafaoğlu, Mustafa; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Çocuk Sağlığı ve Hastalıkları Anabilim Dalı/Çocuk Enfeksiyon Hastalıkları Bilim Dalı.; CTG-5805-2022; 6602154166