5 research outputs found

    Investigation of histopathological changes in the liver, lung spleen, kidney and heart of mice mixed with 10% and 20% ethyl alcohol into drinking water

    No full text
    Fareler üzerinde yapıları bu deneysel çalışma, alkolün karaciğer, akciğer, dalak, böbrek ve kalp üzerinde oluşturduğu histopatolojik bulguları araştırmak amacı ile yapılmıştır. Deney sırasında Mus Musculus Swiss Albino F:37 farelerinden seksen adet deney, on adet kontrol olmak üzere toplam doksan adet kullanılmış ve deney grubundaki farelere % 10 ve % 20'lik alkol içme sularına karıştırılarak verilmiştir. Çalışmada farelerin üç ve dördüncü aylarda otopsileri yapılarak karaciğer, akciğer, böbrek ve kalp histopatolojik olarak incelenmiştir. Deney grubu farelerin karaciğerlerinde; bulanık şişmeden tek hücre nekrozuna kadar varan parankimatoz değişiklikler, zonal nekroz, alkolik hepatitis, akclğerlerinde ;Pnömoni, kronik bronşitis, bronşektazi, adeno karsinoma, dalaklarında; köpük hlstiosit inf iltrasyonu ile sinüzoidler ve damar duvarlarında homojen eozinofilik materyal birikimi, böbreklerde; pyelonef ritis ve retansiyon kistleri, kalp'de myokartta dejeneratif değişiklikler tesbit edilmiştir. Çalışma sonucunda alkolün, hücreler üzerine direk toksik etki veya lipid, protein ve karbonhidrat metabolizmalarını bozarak vücut direncini azalttığı, enfeksiyonları kolaylaştırdığı beslenme bozukluğuna sebeb olduğu ve bu zararlı etkilerin kullanılan alkol konsantrasyonu ile alım süresine bağlı olarak arttığı sonucuna varılmıştır

    Gastrointestinal stromal tumors: A multicenter study of 1160 Turkish cases

    No full text
    Background/aims: The aim of this multicenter study was to determine the histopathological features and immunohistochemical profiles of gastrointestinal stromal tumors diagnosed in Turkish patients. Material and Methods: Twenty-eight participating centers registered their gastrointestinal stromal tumor cases on a nationwide database. The diagnosis of gastrointestinal stromal tumor relied upon hematoxylin & eosin features and the results of antibody panel including CD117, CD34, desmin, smooth muscle actin, S-100 protein, and Ki67. The database consisted of parameters including age, gender, location, and all other histopathological and immunohistochemical findings. Statistical analysis was performed using Pearson, Kruskal-Wallis, Mann-Whitney U, and Spearman tests. Results: From all of the gastrointestinal stromal tumors in the database, 1160 cases with a male to female ratio of 1.22 and a mean age of 56.75 years were included in the study. The most common location was the stomach (45.0%), followed by the small intestine, omentum-peritoneum, large intestine, and esophagus (32.0%, 12.6%, 9.3%, 1.1%, respectively). The risk groups were distributed as: 6.1% very low, 21.7% low, 19.3% intermediate, and 53% high-risk cases. Many histopathologic findings were correlated with risk groups. CD117 was positive in 95.3% of gastrointestinal stromal tumors, whereas CD34 was positive in 74.9%, smooth muscle actin in 45.9%, desmin in 9.2%, and S-100 in 19.1.%. Though no significant relation was found between CD117 expression and tumor location, CD34, smooth muscle actin and Ki67 expressions significantly varied in different locations (p=0.001) and risk groups. Conclusions: The results of this multicenter study demonstrated that features other than tumor size and mitosis and immune markers other than CD117 and Ki67 included in the antibody panel seem to be useful as predictive risk factors
    corecore