Bir köpekte memede beraber seyreden tüberküloz ve malign mikst tümör

Tüberküloz ve tümörler hem insanlarda hem de hayvanlarda gözlenen önemli birer sağlık problemi olup bu iki hastalık arasındaki ilişki hakkında halen çok soru işaretleri mevcuttur. Bu olguda 8 yaşlı, dişi, terrier bir köpekte malign miks tümör ve prodüktif tüberkülozün birlikte seyrettiği gözlendi. Klinikte operasyonla alınan sol meme zinciri patolojik yönden incelenmesi için getirildi. Histopatolojik inceleme için doku %10'luk tamponlu formalin solüsyonunda tespit edildi. Rutin doku takibinin ardından hazırlanan parafin bloklardan kesitler alınarak hematoksilen eozin ve asid fast tüberküloz basili tespiti için Ziehl- Neelsen boyamaları yapıldı. Mikroskobik incelemede atipik neoplazik bez epitel hücreleri ile merkezinde kazeifikasyon nekrozu bulunan tüberküllere rastlandı. Ayrıca Mycobacterium spp. PCR amplifikasyonu ile teyit edildi. Tüberküloz ve tümörün bir arada bulunması daha önce sadece bir keçide bildirilmiş olup evcil hayvanlarda nadir gözlenen bir olgudurTuberculosis and tumors are two major health problems in both humans and animals; and there are still many question marks in the association between these two important diseases. In this case, malignant mixed tumor and productive tuberculosis were observed simultaneously in 8 years old, terrier, and female dog. After mastectomy of the left mammary chain; removed tissue was brought for pathological examination. For the histopathology examination, specimens were fixed in 10% neutral buffered formalin. Tissues were processed routinely and stained with hematoxylin-eosin and Ziehl-Neelsen for acid-fast bacilli detection. Microscopically, atypical neoplastic cells and caseation necrosis located in the center of tubercle were seen. After these findings, Mycobacterium spp. was investigated in the same sample and was confirmed by PCR amplification. Concomitant tuberculosis and neoplasm, previously reported in only a goat, is a rare occurrence in domestic animal

Campylobacter anatolicus sp. nov., a novel member of the genus Campylobacter isolated from feces of Anatolian Ground Squirrel (Spermophilus xanthoprymnus) in Turkey

Seventy-four Gram-negative, motile, slightly curved rod-shaped, microaerophilic, oxidase-positive and catalase-negative isolates, recovered from fecal samples of the Anatolian ground squirrel (Spermophilus xanthoprymnus) in Kayseri, Turkey, were subjected to a polyphasic taxonomic study. Results of a genus-specific PCR indicated that all isolates belonged to the genus Campylobacter. 16S rRNA gene sequence analyses revealed the closest match as Campylobacter curvus DSM 6644(T) with identity levels of 96.41-96.70%. Based on the 16S rRNA gene phylogeny of the 74 isolates, six isolates (faydin-G24, faydin-G52, faydin-G105, faydin-G114, faydin-G129 and faydin-G140(T)) were chosen as representatives for further characterization. The overall genome relatedness indices for the strain faydin-G140(T), compared to the most closely related type strain C. curvus ATCC 35224(T), were calculated as 15.2%, 72.5%, and 83.7% for digital DNA-DNA hybridization (dDDH), and average nucleotide identity (ANIb and ANIm), respectively. The G+C content and genome size of the strains ranged between 35.2-35.4 mol% and 1.7-1.8 Mb, respectively. Based on data obtained from the polyphasic taxonomy approach, including phenotypic characterization as well as genomic and chemotaxonomic analyses, these strains are concluded to represent a novel species, for which the name Campylobacter anatolicus sp. nov. is proposed with faydin-G140(T) as the type strain (=DSM 112311(T) = LMG 32238(T)) (C) 2021 Elsevier GmbH. All rights reserved