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Öğe Acute Infantile Hemorrhagic Edema: A Clinical Perspective (Report of Seven Cases)(2009) Alp, Hayrullah; Artaç, Hasibe; Alp, Esma; Reisli, İsmailAcute infantile hemorrhagic edema (AIHE) is an uncommon cutaneous leukocytoclastic vasculitis characterized by large purpuric skin lesions, acral edema and fever. In spite of violent onset, spontaneous recovery without any sequelaes occurs within a few weeks. The causes of AIHE are unknown and there is no specific treatment. In this article, we have presented seven cases with AIHE admitted to our hospital between 2003-2006. We evaluated the effect of antihistaminic treatment on the course of the disease and we also reviewed the features of AIHE distinguishable from other purpuric diseases.Öğe Akut astım atağı ile başvuran çocukların klinik özellikleri ve risk faktörleri(2012) Karagöl, Cüneyt; Ertoy, Hacer İlbilge Karagöl; Keleş, Sevgi; Artaç, Hasibe; Reisli, İsmailGiriş: Çocukluk çağı kronik hastalıklarının en sık görüleni olan astım, morbiditesi, mortalitesi ve prevalansı artan bir hastalıktır. Akut astım atakları ise astımın mortalite ve morbiditesini belirleyen en önemli faktördür. Bu çalışmanın amacı; çocuklarda astım atağına neden olan risk faktörlerinin, astım ataklarının klinik özelliklerinin ve tedaviye yanıtın prospektif olarak belirlenmesidir. Hastalar ve Yöntem: Ocak 2008-Ocak 2009 tarihleri arasında kliniğimizde astım tanısıyla takipli ve astım atağı nedeniyle başvurmuş 40 çocuk hastanın klinik ve laboratuvar bulguları değerlendirildi. Bulgular: Çalışma grubunu oluşturan 40 çocuk hastanın 23ü erkek, 17si kız ve yaş ortalaması 7.8 1.9 yıl idi. Atağa neden olan en önemli risk faktörleri infeksiyon ve sigara dumanıyla temas; en sık yakınma ise öksürük olarak saptandı. Hastaların astım ataklarının şiddeti değerlendirildiğinde hafif atak 20 (%50) hastada, orta atak 18 (%45) hastada ve ağır atak 2 (%5) hastada mevcuttu. Astımlı hastalardan 24 (%60)ü oksijen tedavisi ve kısa etkili nebülize bronkodilatörle düzelirken, 16 (%40) hastaya sistemik steroid tedavisi uygulandı. Acil serviste uygulanan tedavi sonrası, 34 (%85) hasta evine gönderilirken, 4 (%10) hasta tedavi için yataklı çocuk servisine, 2 (%5) hasta ise yoğun bakım ünitesine yatırıldı. Sonuç: Akut astım atağına neden olabilecek risk faktörlerinin belirlenmesi, atak sıklığının ve şiddetinin azaltılmasında oldukça önemlidir. Bu nedenle, astımlı çocukların infeksiyonlardan korunmasının ve ev içi sigara dumanıyla temasın önlenmesi amacıyla aile eğitiminin çok önemli olduğu kanaatindeyiz.Öğe Alternaria and Cladosporium spores in the atmosphere of Konya and their relationship with meteorological factors(2014) Artaç, Hasibe; Kızılpınar, İlginç Temizer; Özdemir, Hülya; Pekcan, Sevgi; Doğan, Cahit; Reisli, İsmailGiriş: Bu çalışmanın amacı; Konya ili atmosferindeki Alternaria ve Cladosporium sporlarını etkileyen meteorolojik faktörleri (sıcaklık, nispi nem, rüzgar hızı, rüzgar yönü ve yağış miktarı) saptamaktır. Gereç ve Yöntem: Alternaria ve Cladosporium sporları 1 Ocak 2008-31 Aralık 2009 tarihleri arasında Burkard cihazıyla toplandı. Mikroskobik sayımlar atmos- ferik konsantrasyonlara çevrildi ve spor/m3 şeklinde ifade edildi. Bulgular: 2008-2009 yıllarında sırasıyla, 424 (%19.2) ve 3977 (%8.6) spor/m3 Alternaria sporu, 1784 (%80.8) ve 42.158 (%91.4) spor/m3 Cladosporium sporu tespit edildi. 2008 yılında Cladosporium konsantrasyonuyla günlük ortalama sıcaklık (r 0.181, p 0.045), maksimum sıcaklık (r 0.193, p 0.033) ve rüzgar hızı (r 0.242, p 0.007) arasında pozitif korelasyon; nispi nem (r -0.215, p 0.017) ile negatif korelasyon saptandı. 2009 yılında ise Alternaria ve Cladosporium spor konsantrasyonlarının, günlük ortalama sıcaklık (r 0.44, p 0.001; r 0.44, p 0.001), minimum sıcaklık (r 0.46, p 0.001; r 0.44, p 0.001) ve maksimum sıcaklık (r 0.40, p 0.001; r 0.43, p 0.001) ile pozitif ilişkili olduğu; nispi nem ile (r -0.29, p 0.001; r -0.37, p 0.001) negatif korelasyonu olduğu bulundu. Sonuç: Konya ili atmosferindeki Alternaria ve Cladosporium miktarı meteorolojik faktörlere göre değişiklik göstermektedir. Ayrıca, Cladosporiuma ait sporlar Alternaria sporlarından daha yoğun olarak tespit edilmiştir.Öğe Astımlı çocuklarda serum periostin ve soluk havasında nitrik oksit düzeyi(2018) Dikener, Ahmet Hakan; Özdemir, Hülya; Ceylan, Ayça; Ünlü, Ali; Artaç, HasibeAmaç: Periostin, havayolu epitelinden ve akciğer fibroblastlarından, IL-4 ve IL-13 aracılığı ile salgılanan ekstrasellüler matriks proteinidir. Eozinofilik havayolu inflamasyonun göstergesi olduğu kabul edilmektedir. Çalışmada, astımlı çocuk hastalarda serum periostin düzeyinin değerlendirilmesi ve soluk havasında nitrik oksit (FeNO) düzeyleri ile korelasyonunun belirlenmesi amaçlanmıştır. Gereç ve Yöntem: Çalışmaya 7-17 yaş arası, 60 intermittan ve hafif persistan astımlı (29 allerjik, 31 allerjik olmayan) ve 30 sağlıklı kontrol, toplam 90 çocuk (45 kız, 45 erkek) dahil edildi. Hastaların demografik verileri, eozinofil yüzdesi, solunum fonksiyon testi, deri prik testi ve spesifik IgE düzeyleri kaydedildi. FeNO ve serum periostin düzeyi ölçüldü. Bulgular: Çalışmaya alınan tüm bireylerde serum periostin değerlerinin yaşla anlamlı korelasyonu olduğu ve yaşla birlikte azaldığı görüldü (6-12 yaş grubunda 59.0812.79 ng/dl, 13-18 yaş grubunda 46.1811.64 ng/dl, p0.001). Serum periostin düzeyi allerjik astımlı hastalarda 52.1013.93 ng/dl, allerjik olmayanlar da 54.6113.05 ng/dl olup anlamlı fark saptanmadı. FeNO değerleri hasta ve sağlıklı kontrol grubu ile karşılaştırıldığında farklı değildi (15.5 ppb ve 14.0 ppb, p0.486). Hasta grubunda sadece allerjik hastaların FeNO ve periostin değerleri arasındaki korelasyon değerlendirildiğinde istatistiksel olarak anlamlılık saptanmadı (r0.327, p0.077). Ayrıca, serum periostin düzeyi sadece polen duyarlılığı olan grupla karşılaştırıldığında polisensitize olan astımlı çocuklarda daha yüksekti ancak fark istatistiksel olarak anlamlı değildi (58.215.1 ve 44.658.3, p0.065). Sonuç: Bu çalışma ile yeni biyobelirteç olan serum periostin düzeyi çocukluk çağındaki astımlı hastalarda değerlendirildi ve yaşla anlamlı korelasyonunun olduğu gösterildi. İntermittan ve hafif persistan astımlı hastalarda serum periostin düzeyinde anlamlı değişiklik saptanmadı. Çocukluk çağında orta ve ağır persistan astımda, serum periostin düzeyinin değerlendirilmesi için ayrıca çalışmalara ihtiyaç vardır.Öğe B cell aplasia and hypogammaglobulinemia associated with levetiracetam(K FAISAL SPEC HOSP RES CENTRE, 2018) Özdemir, Hülya; Sümer, Sua; Karabağlı, Hakan; Akdemir, Gökhan; Calışkaner, A. Zafer; Artaç, HasibeLevetiracetam (LEV) is a second-generation antiepileptic drug approved for the treatment of several types of epilepsy. We report a 45-year-old female who developed hypogammaglobulinemia and B cell aplasia during LEV treatment. The Naranjo probability score for an adverse drug reaction was 6. After LEV discontinuation, the number of B cells gradually increased and reached normal levels within two months. This case suggests that monitoring of immunoglobulin levels and lymphocyte subsets analysis is important in patients treated with LEV, especially in cases of prolonged infections.Öğe B-Cell Maturation and Antibody Responses in Individuals Carrying a Mutated CD19 Allele(Nature Publishing Group, 2010) Artaç, Hasibe; Reisli, İsmail; Kara, R.; Pico-Knijnenburg, I.; Adın, Suzan Çınar; Pekcan, Sevgi; Jol-Van der Zijde, C. M.; Van Tol, M. J. D.; Bakker-Jonges, L. E.; Van Dongen, J. J. M.; Van der Burg, M.; Van Zelm, M. C.Homozygous CD19 mutations lead to an antibody deficiency due to disruption of the CD19 complex and consequent impaired signaling by the B-cell antigen receptor. We studied the effects of heterozygous CD19 mutations on peripheral B-cell development and antibody responses in a large family with multiple consanguineous marriages. Sequence analysis of 96 family members revealed 30 carriers of the CD19 mutation. Lymphocyte subset counts were not significantly different between carriers and noncarriers in three different age groups (0-10 years; 11-18 years; adults). B cells of carriers had reduced CD19 and CD21 median expression levels, and had reduced proportions of transitional (0-10 years) and CD5(+) B cells (adults). CD19 carriers did not show clinical signs of immunodeficiency; they were well capable to produce normal serum Ig levels and had normal responses to primary and booster vaccinations. The frequency of mutated V(kappa) alleles was not affected. Heterozygous loss of CD19 causes some changes in the naive B-cell compartment, but overall in vivo B-cell maturation or humoral immunity is not affected. Many antibody deficiencies are not monogenetic, but likely caused by a combination of multiple genetic variations. Therefore, functional analyses of immune cell function should be carried out to show whether heterozygous mutations contribute to disease.Öğe CD19 deficiency: A village screening study(AVES, 2009) Reisli, İsmail; Artaç, Hasibe; Pekcan, Sevgi; Kara, Reyhan; Yumlu, Kadir; Karagöl, Cüneyt; Çimen, ÖmerAim: We identified a new CD19 deficient case who was a relative of the first CD19 deficient patient and lived in the same village. These cases suggested that other patients with CD19 deficiency or carriers could be found in this village. The aim of this study was to assess the warning signs of primary immunodeficiency and the CD19 molecule deficiency in this population. Material and Method: The relatives of CD19 deficient patients and controls were examined for the warning signs of primary immunodeficiency using a questionnaire form Blood samples were taken from these subjects CD19 and CD21 expressions (median fluorescent intensity, MFI) were analyzed by flowcytometry in these samples. Results: A total of 208 subjects (59 families, 126 females, 82 males) including 129 children 9.5 +/- 3 7 years and 79 adults (37 13 years) were evaluated. A new case with CD19 deficiency was not detected There was at least one warning sign for immunodeficiency in 67 subjects (57 children and 10 adults) CD19 median expression value was lower than 60 MFI value in 20 subjects, which was known as in the carriers who were detected to have heterozygous mutation Conclusions: Our findings suggested that CD19 median expression might be a diagnostic tool for the subjects who have CD19 heterozygous mutations. Mutation analyses are planned for the confirmation of CD19 heterozygous mutation in these subjects who have low CD19 median expression. (Turk Arch Ped 2009; 44. 127-30)Öğe CD19 molekül eksikliği: Bir köy taraması(2009) Reisli, İsmail; Artaç, Hasibe; Pekcan, Sevgi; Kara, Reyhan; Yümlü, Kadir; Karagöl, Cüneyt; Çimen, ÖmerAmaç: CD19 eksikliğinin ilk kez tanımlandığı bir olgunun köyünde yaşayan ve akrabası olan bir olguda daha CD19 eksikliği tanımlandı. Bu olgular, bu köyde yaşayan başka olguların ve taşıyıcıların da olabileceğini düşündürdü. Bu amaçla köy halkı immün yetersizlik düşündüren klinik bulgular ve CD19 molekül eksikliği yönünden değerlendirildi. Gereç ve Yöntem: CD19 eksikliği olgularının akrabaları ve kontrol grubu, anket formları ile birincil immün yetersizlik hastalıklarının klinik belirtileri için sorgulandı. Olgulardan alınan kan örneklerinde, CD19 ve CD21 molekül varlığı akış sitometri ile incelendi. Bulgular: Toplam 59 aileden 129 çocuk (9,53,7 yıl) ve 79 yetişkin (3713 yıl) olmak üzere 208 olgu (126 kadın, 82 erkek) değerlendirildi. Yeni bir CD19 eksikliği olgusu saptanmadı. Anket formları ile 67 olguda (57 çocuk, 10 yetişkin) en az bir uyarıcı immün yetersizlik bulgusu vardı. CD19 mediyan ekspresyon değeri (MFI) 20 olguda, CD19 yönünden heterozigot taşıyıcı olan bireylerden elde edilen 60 MFI değerinin altındaydı. Çıkarımlar: Bulgularımız CD19 eksikliği heterozigot “taşıyıcılığı” açısından, CD19 taşıyan B lenfosit oranının değil, CD19 mediyan ekspresyon düşüklüğünün yol gösterici olduğunu düşündürmüştür. CD19 mediyan ekspresyon değerine göre taşıyıcı oldukları belirlenen bu olguların, mutasyon tetkiklerinin yapılarak taşıyıcı olduklarının doğrulanması planlanmıştır.Öğe CD19 Molekül Eksikliği: Bir Köy Taraması(Kare Publishing, 2009) Reisli, İsmail; Artaç, Hasibe; Pekcan, Sevgi; Kara, Reyhan; Yümlü, Kadir; Karagöl, Cüneyt; Çimen, Ömer; Şen, Metin; Artaç, MehmetAim: We identified a new CD19 deficient case who was a relative of the first CD19 deficient patient and lived in the same village. These cases suggested that other patients with CD19 deficiency or carriers could be found in this village. The aim of this study was to assess the warning signs of primary immunodeficiency and the CD19 molecule deficiency in this population. Material and Method: The relatives of CD19 deficient patients and controls were examined for the warning signs of primary immunode- ficiency using a questionnaire form. Blood samples were taken from these subjects. CD19 and CD21 expressions (median fluorescent intensity, MFI) were analyzed by flowcytometry in these samples. Results: A total of 208 subjects (59 families, 126 females, 82 males) including 129 children 9.5±3.7 years and 79 adults (37±13 years) were evaluated. A new case with CD19 deficiency was not detected. There was at least one warning sign for immunodeficiency in 67 subjects (57 children and 10 adults). CD19 median expression value was lower than 60 MFI value in 20 subjects, which was known as in the carriers who were detected to have heterozygous mutation. Conclusions: Our findings suggested that CD19 median expression might be a diagnostic tool for the subjects who have CD19 heterozygous mutations. Mutation analyses are planned for the confirmation of CD19 heterozygous mutation in these subjects who have low CD19 median expression.Öğe Clinical features and risk factors for childhood asthma exacerbations(WILEY-BLACKWELL, 2010) Karagöl, Cüneyt; Keleş, Sevgi; Göktürk, B.; Kirac, M.; Artaç, Hasibe; Reisli, İsmail[Abstract not Available]Öğe Clinical heterogeneity can hamper the diagnosis of patients with ZAP70 deficiency(SPRINGER, 2009) Turul, Tuba; Tezcan, İlhan; Artaç, Hasibe; de Bruin-Versteeg, Sandra; Barendregt, Barbara H.; Reisli, İsmail; Sanal, ÖzdenOne of the severe combined immunodeficiencies (SCIDs), which is caused by a genetic defect in the signal transduction pathways involved in T-cell activation, is the ZAP70 deficiency. Mutations in ZAP70 lead to both abnormal thymic development and defective T-cell receptor (TCR) signaling of peripheral T-cells. In contrast to the lymphopenia in most SCID patients, ZAP70-deficient patients have lymphocytosis, despite the selective absence of CD8(+)T-cells. The clinical presentation is usually before 2 years of age with typical findings of SCID. Here, we present three new ZAP70-deficient patients who vary in their clinical presentation. One of the ZAP70- deficient patients presented as a classical SCID, the second patient presented as a healthy looking wheezy infant, whereas the third patient came to clinical attention for the eczematous skin lesions simulating atopic dermatitis with eosinophilia and elevated immunoglobulin E (IgE), similar to the Omenn syndrome. This study illustrates that awareness of the clinical heterogeneity of ZAP70 deficiency is of utmost importance for making a fast and accurate diagnosis, which will contribute to the improvement of the adequate treatment of this severe immunodeficiency.Öğe Defects along the T(H)17 differentiation pathway underlie genetically distinct forms of the hyper IgE syndrome(MOSBY-ELSEVIER, 2009) Al Khatib, Shadi; Keleş, Sevgi; Garcia-Lioret, Maria; Aydıner, Elif Kara Koç; Reisli, İsmail; Artaç, Hasibe; Çamcıoğlu, YıldızBackground: The hyper IgE syndrome (HIES) is characterized by abscesses, eczema, recurrent infections, skeletal and connective tissue abnormalities, elevated serum IgE, and diminished inflammatory responses. It exists as autosomal-dominant and autosomal-recessive forms that manifest common and distinguishing clinical features. A majority of those with autosomal-dominant HIES have heterozygous mutations in signal transducer and activator of transcription (STAT)-3 and impaired T(H)17 differentiation. Objective: To elucidate mechanisms underlying different forms of HIES. Methods: A cohort of 25 Turkish children diagnosed with HIES were examined for STAT3 mutations by DNA sequencing. Activation of STAT3 by IL-6 and IL-21 and STAT1 by IFN-alpha was assessed by intracellular staining with anti-phospho (p)STAT3 and -pSTAT1 antibodies. T(H)17 and T(H)1 cell differentiation was assessed by measuring the production of IL-17 and IFN-gamma, respectively. Results: Six subjects had STAT3 mutations affecting the DNA binding, Src homology 2, and transactivation domains, including 3 novel ones. Mutation-positive but not mutation-negative subjects with HIES exhibited reduced phosphorylation of STAT3 in response to cytokine stimulation, whereas pSTAT1 activation was unaffected. Both patient groups exhibited impaired TH17 responses, but whereas STAT3 mutations abrogated early steps in TH17 differentiation, the defects in patients with HIES with normal STAT3 affected more distal steps. Conclusion: In this cohort of Turkish children with HIES, a majority had normal STAT3, implicating other targets in disease pathogenesis. Impaired TH17 responses were evident irrespective of the STAT3 mutation status, indicating that different genetic forms of HIES share a common functional outcome. (J Allergy Clin Immunol 2009;124:342-8.)Öğe Değişken İmmün Yetersizlikli Çocuk Hastalarda Klinik ve Laboratuvar Özellikler(2007) Artaç, Hasibe; Keleş, Sevgi; Kara, Reyhan; Reisli, İsmailDeğişken immün yetersizlik (DİY), bozulmuş antikor yanıtı ile belirgin, nedeni bilinmeyen birincil bir immün yetersizliktir. Bu çalışmanın amacı, DİY'li çocuk hastaların klinik ve laboratuvar özelliklerinin değerlendirilmesidir. Gereç ve Yöntem: Şubat 2002-Haziran 2006 tarihleri arasında, ortalama 29,717,4(2-51) ay, DİY tanısıyla takip ve tedavi edilen 10 çocuk hastanın dosya kayıtları gözden geçirildi. Bulgular: Hastaların yedisi kız, üçü erkek olup, tanı yaşları ortalama 9,45,1 (3-18) yıldı. Hastaların hepsi tekrarlayan alt solunum yolu enfeksiyonu nedeniyle başvurmuşlardı. Dokuz olguda kronik akciğer hastalığı mevcuttu ve bunların üçü lobektomi geçirmişti. Dört hastanın IgG düzeyi 200 mg/dl'nin altındaydı. Altı hastada en az iki immünglobulin düzeyinde azalma vardı. IgG düzeyi normal olan dört olgunun ikisinde IgA düşüklüğü ve diğer ikisinde ise IgM düşüklüğü saptandı. Tüm hastaların tanı anında B lenfosit oranı düşük bulundu (%1,6-8,9; 5,32,8). Sekiz olguda CD4/CD8 oranı tersine dönmüştü. Çıkarımlar: "Heterojen" bir immün yetersizlik olan bu hastalığın kronik akciğer hastalığı olan olgularda araştırılması gerektiğini düşünüyoruz.Öğe Dysgerminoma in a child with ataxia-telangiectasia(TAYLOR & FRANCIS INC, 2007) Köksal, Yavuz; Çalışkan, Ümran; Uçar, Canan; Yurtçu, Müslim; Artaç, Hasibe; Yakut, Zeynep İlerisoy; Reisli, İsmailAlaxia - telangiectasia is an autosomal recessive disease characterized by progressive cerebellar ataxia, oculocutaneous telangiectasia, immunodeficiency, high incidence of cancer; and increased sensitivity to ionizing radiation. The authors report a case of dysgerminoma in a child with high alpha-fetoprotein, CA125 and beta-human chorionic gonadotropin, who has been followed-up for ataxia-letangiectasia for 2 years.Öğe The effect of allergic rhinitis treatment on serum ischemia modified albumin levels in children with allergic rhinitis(WILEY-BLACKWELL, 2013) Vatansev, Hüsamettin; Akyürek, Fikret; Artaç, Hasibe; Atıcı, Seval; Öztürk, B.; Sivrikaya, Abdullah[Abstract not Available]Öğe Efficacy of intravenous immunoglobulin treatment in immunocompromised children with H1N1 influenza: a clinical observation(WILEY-BLACKWELL, 2016) Göktürk, Bahar; Pekcan, Sevgi; Güner, Şükrü Nail; Artaç, Hasibe; Keleş, Sevgi; Kıraç, Mine; Reisli, İsmailBackground and AimsThe appropriate treatment of pandemic H1N1 influenza which was first identified in April 2009 in Mexico is insufficient especially for immunocompromised patients. We aimed to evaluate the features and prognostic factors of the children with H1N1, especially immunocompromised ones, and whether intravenous immunoglobulin G (IVIG) replacement could aid for a better outcome. MethodsTwenty-one hospitalized children with laboratory-confirmed H1N1 were evaluated retrospectively. Data were extracted from files and electronic medical records. ResultsThe median age was 37 (1-216) months; 62% of them were under 5years of age and 71.4% had one or more underlying disorders. Main symptoms were high fever, cough, fatigue and vomiting. Lower respiratory tract manifestations were seen in 66.6% of children. Mortality rate was 4.7%. The patient who died had the lowest lymphocyte (100/mm(3)), thrombocyte (21000/mm(3)) and highest blood urea nitrogen (87mg/dL) levels. Fifty-eight percent of evaluated patients had one of the primary immunodeficiency disorders. Surprisingly, none of the six patients with primary immunodeficiency who are on regular IVIG replacement needed intensive care unit and died. Although median durations of cough, fever and hospitalization were lower, they did not change statistically according to get IVIG replacement regularly (P=0.47, 0.97, 0.09, respectively). ConclusionOur study is important while it is the first one that shows the course of primary immunodeficient children with H1N1 infection who were on regular IVIG replacement. A trial of high-dose IVIG may be a useful adjunctive therapy in severe H1N1 influenza, particularly in the immunocompromised patients.Öğe Evaluation of Hematologic Parameters in Children with Down Syndrome(Selçuk Üniversitesi, 2022) Özdemir, Hülya; Artaç, HasibeObjective: Congenital hematological disorders are frequently observed in patients with Down syndrome (DS). In this study, we aimed to investigate peripheral blood-derived inflammation biomarkers such as neutrophil-lymphocyte ratio, platelet-lymphocyte ratio, and eosinophilmonocyte ratio in patients with Down syndrome. Material and Methods: Ninety-eight patients with karyotypically ascertained DS and 103 healthy controls were included. All subjects were divided into three age groups: 0-2 years (34 patients, 34 controls), 2-6 years (32 patients, 33 controls), and >6 years (32 patients, 36 controls). Demographic, clinical, and laboratory data of patients with DS who were admitted between June 2010 and December 2021 were reviewed from the file records from the pediatric allergy and immunology department. Results: Lymphocyte, eosinophil, and eosinophil-monocyte ratio were found to be significantly lower in children with DS compared to controls in group 2 (2-6 years) and group 3 (>6 years). Platelet-lymphocyte ratio was found to be higher in children with DS in group 2 and group 3. There was no statistically significant difference between DS and controls in group 1 (<2 years) in terms of all parameters. In group 2 (2-6 years) and group 3 (>6 years), there was a statistically significant difference between DS and controls in terms of lymphocyte, eosinophil, platelet-lymphocyte ratio, and eosinophilmonocyte ratio variables (P>0.05). Conclusion: We found significant differences among lymphocyte, eosinophil, platelet-lymphocyte ratio, and eosinophil-monocyte ratio in patients with DS. As a result, these parameters should be evaluated carefully for clinical outcomes.Öğe Evaluation of Skin Prick Test results performed for the diagnosis of inhaled allergens in Konya(Selçuk Üniversitesi, 2024) Ürün Ünal, Bahar; Can Erçin, Ayşe; Külhaş Çelik, İlknur; Artaç, HasibeObjective: We aimed to determine the distribution of inhaled allergens by evaluating the results of skin prick tests performed on patients with allergic complaints in Konya. Material and Methods: The study included 2351 patients aged 2-18 years who underwent skin prick tests for the diagnosis of inhaled allergens at the Selçuk University Medical Faculty Pediatric Allergy and Immunology Outpatient Clinic between June 1, 2022, and May 31, 2023. The demographic characteristics and skin prick test results of 696 patients with sensitivity to at least one inhaled allergen were retrospectively evaluated. Results: Sensitivity to at least one inhaled allergen was detected in 696 (29.6%) of 2351 patients who underwent skin prick testing for allergic symptoms. The mean age of patients with inhaled allergen sensitivity was 10.37 ± 4.14 years. 278 (39.9%) of the patients were girls, and 418 (60.1%) were boys. Considering the distribution of inhaled allergens detected by the skin prick test, the most frequent allergens were pollen allergens (78.2%), cat epithelium (38.8%), and dog epithelium (33.8%). The most common allergens detected in girls were pollen allergens (77.3%), cat epithelium (38.1%) and house dust mites (37.1%). The most common allergens detected in males were pollen allergens (78.7%), cat epithelium (39.2%), and dog epithelium (34.7%). Sensitivity to house dust mites was more prevalent in girls than boys. Sensitivity to pollen allergens was most frequently detected in all seasons. Significant differences were detected between house dust mites, pollen allergens, rye, and cat epithelium sensitivities according to seasons. Conclusion: Our study shows the distribution of inhaled allergens in Konya province. Therefore, we assume that it can contribute to the implementation of environmental measures that can be taken to protect against allergens and, thus, to the treatment of patients.Öğe Hypogammaglobulinemia and Silver-Russell Phenotype Associated With Partial Trisomy 7q and Partial Monosomy 21q(WILEY-LISS, 2009) Artaç, Hasibe; Reisli, İsmail; Yıldırım, Mahmut Selman; Bağcı, Gülseren; Lüleci, Güven; Hoşgör, Orhan; Karaaslan, Sevim[Abstract not Available]Öğe Identification of a Novel Mutation in the Complement Factor 3 Gene in a Patient With Recurrent Pneumococcal Pneumonia(Springer/plenum Publishers, 2012) Santos-Valente, Elisangela; Reisli, İsmail; Artaç, Hasibe; Ott, Raphael; Sanal, Özden; Boztug, KaanPurpose Immunological and molecular evaluation of a pa tient presenting with recurrent infections caused by Strepto coccus pneumoniae and low complement component 3 (C3) levels. Methods Immunological evaluation included complement components and immunoglobulin level quantification as well as number and function of T cells, B cells and neutro phils. Serotype-specific immunoglobulin G antibodies against S. pneumoniae capsular polysaccharides were quan tified by ELISA in serum samples before and after vaccina tion with unconjugated polysaccharide vaccine. For the molecular analysis, genomic DNA from the patient and parents were isolated and all exons as well as exon-intron boundaries of the C3 gene were sequenced by Sanger sequencing. Results A 16-year-old male, born to consanguineous parents, presented with recurrent episodes of pneumonia caused by S. pneumoniae and bronchiectasis. The patient showed severely reduced C3 and immunoglobulin A levels, while the parents showed moderately reduced levels of C3. Mutational analysis revealed a novel, homozygous missense mutation in the C3 gene (c. C4554G, p. Cys1518Trp), substituting a highly conserved amino acid in the C345C domain of C3 and interrupting one of its disulfide bonds. Both parents were found to be carriers of the affected allele. Vaccination against S. pneumoniae resulted in considerable clinical improvement.
