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4 result(s) for "Ekin, İsmail Hakkı"
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Investigation of the Correlation Between ELISA and Serum Amyloid A in the Diagnosis of Bordetella bronchiseptica in Dogs
ABSTRACT Background Bordetella bronchiseptica is an essential bacterial pathogen characterized by chronic respiratory disease in dogs known as Kennel cough. The presence of causative antibodies in animals can also be detected by lipopolysaccharide antigen‐based enzyme linked immunosorbent assay (ELISA). In recent years, it has been determined that there is a significant relationship between acute phase proteins and diseases, and disease follow‐up can be done within the framework of this relationship. Methods In this study, blood sera from 150 dogs in an animal shelter in Van province were evaluated for B. bronchiseptica by the homemade ELISA method, and their correlations with serum amyloid A (SAA) were investigated. Blood serum samples were analysed for antibodies against B. bronchiseptica using a homemade ELISA method. Positive animals were also molecularly confirmed using nasal swabs by PCR. A commercial ELISA kit determined SAA levels in blood sera. Results Eighteen (12%) of the analysed blood serum samples were found positive by the homemade ELISA method. SAA concentrations in the positive blood sera were elevated from 12.7 to ≤38.98 mg/L. SAA concentrations in blood sera serologically positive for B. bronchiseptica were statistically significant. Conclusions In this study, in which the relationship between SAA concentration and B. bronchiseptica was investigated for the first time in Turkey, it was concluded that SAA concentration analysis may help diagnose and monitor the disease. In addition, the presence and prevalence of this critical and zoonotic agent causing chronic respiratory tract disease in dogs in Van province was revealed for the first time in this study. A study in Van, Turkey examined Bordetella bronchiseptica in shelter dogs using ELISA and PCR. Overall, 12% of blood samples tested positive. Serum amyloid A (SAA) levels were significantly elevated in positive cases, suggesting SAA could be a useful diagnostic marker for this chronic respiratory disease‐causing bacterial pathogen.
Phenotypic and Genotypic Characterization of Macrolide-Lincosamide-Streptogramin Resistance in Staphylococcus aureus Isolates from Bovine and Human
In this study, penicillin, oxacillin, and macrolide-lincosamide-streptogramin (MLS) resistance in strains that were isolated from bovine mastitis cases, and human patients were investigated. Inducible clindamycin resistance (iML) was not found in 30 bovine isolates, while it was detected in 3 (10%) of 30 human isolates. MIC values of penicillin, oxacillin and macrolide-lincosamides (ML) were 2, 0.19, >256 µg/ml in bovine isolates and were 3, 3 and 0.19-1.5 µg/ml in human isolates, respectively. Streptogramin resistance was not found in both bovine and human isolates. Although the gene was detected in all of the oxacillin resistant isolates, gene could not be detected in penicillin resistant isolates. The ) gene was detected in 5 (38.6%) of 13 ML-resistant bovine isolates, and the ) gene was detected in 2 (66.66%) of 3 human isolates. As a result, resistance to penicillin and oxacillin was found to be higher in human isolates, while ML resistance was found to be higher in bovine isolates in this investigation. It was concluded that the presence of genes in extra-chromosomal elements associated to penicillin and macrolide resistance should be investigated. The data obtained from this study will contribute to the studies on antimicrobial susceptibility in the field of human and veterinary medicine.
Biotyping and Antimicrobial Susceptibility of Enterococcus faecalis and E. faecium Isolated from Urine and Stool Samples
Background: Enterococci are one of the opportunistic pathogenic microorganisms that can cause significant problems for human and animal health. Enterococcus faecium seems to be more resistant to antibiotics than E. faecalis. It is thought that pathogenic E. faecium can develop antibiotic resistance very quickly, and the ability to transfer this feature is considered to be an important health risk. Objectives: This study aimed to determine the prevalence, biotypes, and in vitro antimicrobial susceptibility of E. faecalis and E. faecium strains isolated from 267 routine urine and stool samples that were brought to the microbiology laboratory of Regional Training and Research Hospital of Van, with permission of the patients. Methods: In the present study, enterococci using species-specific primers to examine E. faecalis and E. faecium multiplex PCR technique was applied. Biotyping of the isolates was used to identify them as E. faecalis and E. faecium by molecular techniques, and antibiotic susceptibility of all samples was examined, as well. Results: The isolates were identified by multiplex PCR using species-specific primers for E. faecalis and E. faecium. Biotyping based on 13 biochemical tests showed that 72.5%, 12.5%, and 15% of E. faecalis strains were of biotypes I, II, and III, respectively, whereas E. faecium strains could be divided into biotype I (10%), biotype II (12.5%), biotype III (27.5%), and biotype IV (50%). Additionally, all E. faecalis strains were found to be susceptible to penicillin G and imipenem. On the other hand, 95% of the E. faecalis strains were found to be resistant to clindamycin, 77.5% to tetracycline and trimethoprim/sulfamethoxazole, 42.5% to erythromycin, 32.5% to gentamicin, and 17.5% to ciprofloxacin. Of E. faecium strains, 37.5% were found to be resistant to clindamycin, 32.5% to penicillin G, 27.5% to erythromycin and imipenem, 20% to ciprofloxacin, 17.5% to tetracycline and trimethoprim/sulfamethoxazole, 15% to gentamicin, and 5% to vancomycin. Conclusions: In conclusion, the identification of E. faecalis and E. faecium strains by PCR is reliable and faster than biochemical tests. Additionally, the results of antimicrobial susceptibility tests may provide important contributions to the clinical approach.
Detection of seasonal asymptomatic dermatophytes in Van cats
The Van cat is a domestic landrace found in the Van province of eastern Turkey. In this study, we aimed to determine the seasonal carriage of dermatophytes in Van cats without clinical lesions. A total of 264 hair specimens were collected from clinically healthy cats in and around the Van Province. Of these samples, 30.3% were obtained in spring, 30.6% in summer, 16.6% in autumn, and 22.3% in winter; 45.1% of samples were from male cats and the rest from female ones. Of the studied cats, 118 were younger than 1 year, 78 were 1–3 years old, and 68 were older than 3 years. The specimens were subjected to direct microscopic examination with 15% potassium hydroxide and cultured on Sabouraud dextrose agar and dermatophyte test medium supplemented with cycloheximide and chloramphenicol. Dermatophyte identification was carried out based on macroscopic and microscopic colony morphology, urease activities, in vitro hair perforation test, growth at 37°C, and pigmentation on corn meal agar. Dermatophytes were isolated from 19 (7.1%) of the 264 specimens examined. The most frequently isolated fungi were Trichophyton terrestre (4.1%), followed by Microsporum gypseum (1.1%), M. nanum (1.1%), and T. mentagrophytes (0.7%), and these fungi may represent a health risk for humans in contact with clinically healthy Van cats. M. canis was not isolated from any of the specimens. Our results show no significant (p>0.05) association between carriage of dermatophytes and the gender of cats. The carriage rate of dermatophytes was high in spring and winter, and the only possible risk factor for infection was age of the animal.