Trends of sensitization to aeroallergens in patients with allergic rhinitis and asthma in the city of Bursa, South Marmara Sea Region of Turkey

Background/aim: Allergic rhinitis (AR) and asthma are the most common allergic disorders worldwide. Aeroallergens are critical causative factors in the pathogenesis of these disorders and sensitization to aeroallergens differs in various countries and regions. Identification of the most common aeroallergen sensitization is crucial in the diagnosis and management of AR and asthma. We examined the distribution of aeroallergen sensitizations detected by skin prick tests (SPTs) in adult patients with AR and/or asthma in the city of Bursa. Materials and methods: Five hundred forty-five patients who underwent a SPT and were diagnosed with rhinitis and/or asthma in the Uludag University Faculty of Medicine's Department of Immunology and Allergic Diseases Outpatient Clinic from March 2018 to August 2018 were retrospectively evaluated. SPTs with standard extracts including house dust mites, pollens, molds, animal dander, and latex were performed for patients. Results: A total of 545 patients were included and most of the patients (270; 49.5%) were between 30 and 49 years of age. The prevalence of atopy was 57.9%. The most common aeroallergens detected in SPTs were Dermatophagoides farinae (50%) and D. pteronyssinus (44%), followed by grass-rye mix (43%), grass mix (38.6%), olive (33.2%), and wheat (32.3%). The sensitization to olive pollen was higher in cases of mild asthma (52%), while sensitization to D. farinae was higher in patients with mild and moderate asthma (54.5%, 54.2%) (P < 0.05). Conclusions: Our study revealed that house dust mite was the most common sensitizing aeroallergen in patients with AR and asthma while pollens were the most common allergen in patients with only AR. The sensitization to grass and olive pollen was higher in cases of mild asthma than moderate and severe. Regional allergy panels may provide important clinical clues for characteristics and courses of allergic diseases

Determination of factors affecting the aggregate stability in wheat cultivated field

Agregat stabilitesi değeri; toprakların yapısal gelişiminde etkili olan bir indikatördür. Topraklar yapısal olarak farklılıklar göstermektedir ve bu yapısal farklılıklar çeşitli faktörler ile uyarılmaktadır. Toprak kil çeşitliliği ve miktarları, CaCO3 içerikleri, katyon değişim kapasitesi, kolloidal demir ve alüminyum oksitler, mikroorganizmalar, ıslanma-kuruma, donma-çözülme ve toprak işleme, toprak yapısının oluşmasında başlıca faktörlerdir. Toprakların yapısal oluşumunda bu faktörlerin etkileri birbirinden oldukça farklıdır.Yapılan bu çalışmanın amacı; Konya ili Çumra ilçesinde Alibey serisi olarak tanımlanmış toprakların agregat stabiliteleri ile buna etki eden faktörler arasındaki ilişkiyi açıklamaktır. Bu amaçla 0-20 cm derinlikten alınan 27 adet toprak örneği çeşitli fiziksel ve kimyasal analizlere tabi tutulmuş ve bulunan sonuçlar istatistiki olarak değerlendirilmiştir. Toprakların tekstürü kil (C), killi tın (CL) ve kumlu killi tın (SCL) sınıfında yer almakta, agregat stabilitesi değerleri ise %5,91 ile %41,40 arasında değişmektedir. Çalışma alanı topraklarının agregat stabilitesi ile tekstür, organik madde, kireç, Ca, Mg, Na ve K değerleri arasında istatistiksel olarak önemli ilişkiler bulunmuştur. Söz konusu topraklarda agregasyonu artırmak için toprak üzerinde mekanizasyon faaliyetlerin minimum düzeyle sınırlandırılması, organik madde miktarının arttırılması ve toprak agregasyonuna olumsuz etkisi olabilecek her türlü faaliyetin azaltılması gerekmektedir.Aggregate stability is an index of the structural stability of the soil. Soil show differences in structural formation and these structural differences are induced by different factors. Soil clay variety and amounts, CaCO3 contents, cation exchange capacity, colloidal iron and aluminiumoxides, microorganims, wetting-drying, freezing-thawing and soil cultivation are the main factors in the formation of the soil structure. Furthermore effects of these factors on the structural formation of soils are quite different from each other.The aim of this study was to determine the effects of some soil properties on aggregate stability in Konya-Çumra plain (Alibey serie). For this purpose soil samples were collected from 27 points and 0-20 cm depth. The samples were analyzed for some soil parameters such as aggregate stability and particle size distribution, organic matter, CaCO3, Ca, Mg, Na, K contents using standard routine laboratory tests. The textures of the soil samples were found to be C, CL and SCL. The soil aggregate stability ranged from 5,91 to 41,40 %. The result indicated that particle size distribution, organic matter, CaCO3, Ca, Mg, Na, K contents significantly affected aggregate stability. As a result, it is required to increase the organic matter content and to reduce the agricultural practices to the minimum tillage in order to increase aggregate stability in the research soils