Browsing by Author "Özakin, Cüneyt"

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    Autolysis of Listeria monocytogenes strains isolated from food and clinical specimens
    (Polish Society of Veterinary Sciences Editorial Office, 2006-11) Cibik, Recep; Çetinkaya, Figen; Güneş, Nazmiye; Özakin, Cüneyt; Soyutemiz, G. Ece; Uludağ Üniversitesi/Veteriner Fakültesi/Biyokimya Bölümü.; Uludağ Üniversitesi/Tıp Fakültesi/Mikrobiyoloji ve Enfeksiyon Hastalıkları Anabilim Dalı.; Uludağ Üniversitesi/Veteriner Fakültesi/Gıda Hijyeni ve Teknolojisi Anabilim Dalı.; 0000-0001-5428-3630; AAG-8392-2021; AAI-1993-2021; AAI-1930-2021; 56010542400; 8657771200; 6506008074; 57200678942; 8416745200
    Autolysis of Listeria monocytogenes strains isolated from clinical and food specimens were tested under starvation conditions. Late exponential phase harvested bacterial cells were transferred in potassium phosphate buffer (100 mM, pH 7) and incubated at 37 degrees C to induce lysis. At the end of the 48 h incubation period a heterogeneous autolysis profile was observed among the tested strains. All the clinical strains exhibited high autolysis i.e. above 75%. Meanwhile, the extent of food isolates was not as high as the clinical ones but demonstrated a great variability - ranging between 22 to 88%. An increase in the amount of intracellular markers upon lysis was also measured in the higher autolytic clinicat strain - UVF172, compared to low autolytic food strain - UVF114. The results obtained from the study provided evidence that autolysis in L. monocytogenes is strain dependent and revealed that tested clinical isolates had a higher level of autolysis than food isolates.
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    Long term investigations on tick infestations of human
    (Kafkas Üniversitesi Veteriner Fakultesi Dergisi, 2015-11-01) Selçuk, Özgür; Aydın, Levent; Girişgin, Ahmet Onur; Şenlik, Bayram; Özakin, Cüneyt; Selçuk, Özgür; AYDIN, LEVENT; GİRİŞGİN, AHMET ONUR; ŞENLİK, BAYRAM; ÖZAKIN, CÜNEYT; Uludağ Üniversitesi/Veteriner Fakültesi/Mikrobioloji Bölümü; Uludağ Üniversitesi/Veteriner Fakültesi/Parasitoloji Bölümü; 0000-0002-0020-2708; 0000-0003-2964-2245; AAG-8392-2021; B-5286-2017; JLA-7878-2023; HLG-4450-2023; GBN-0139-2022
    In this study, a total of 19866 samples which were collected from humans who applied to the hospitals with tick bites in the western part of Turkey (Bursa) between the years 2007 and 2011 (from February to November) were examined. Approximately 10% (1985) of samples were found as non-ticks like bee stings, lice, fleas and other arthropods. The ticks were identified as Rhipicephalus spp. (72.98%), Ixodes spp. (18.96%), Hyalomma spp. (7.18%), Dermacentor marginatus (0.027%) and Haemaphysalis parva (0.005%). Based on localities, majority of the tick samples were reported from the urbanized areas (81%). Especially, Ixodes spp. species were commonly found in highland and forestry areas of Bursa.
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    Resistance to macrolides in streptococcus pneumoniae how far we came in 50 years?
    (Wiley, 2017-11) Uzaslan, Esra; Özakin, Cüneyt; Efe, Kadir; Dilektaşlı, Aslı Görek; Öztürk, Nilüfer; Karadağ, Mehmet; Uludağ Üniversitesi/Tıp Fakültesi/Göğüs Hastalıkları Anabilim Dalı.; Uludağ Üniversitesi/Tıp Fakültesi/Mikrobiyoloji Anabilim Dalı.; 0000-0001-5428-3630; 0000-0002-9027-1132; CDI-1977-2022; AAG-8392-2021; AAG-8744-2021; CNS-8600-2022; CNP-1063-202; IOS-3770-2023
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    The investigation by PCR and culture methods of foulbrood diseases in honey bees in south marmara region
    (Kafkas Üniversitesi, 2015-01-01) Borum, A. Ebru; Özakin, Cüneyt; Güneş, Ertan; Aydın, Levent; Ülgen, Mihriban; Çakmak, İbrahim; ÖZAKIN, CÜNEYT; Güneş, Ertan; AYDIN, LEVENT; ÜLGEN, MİHRİBAN; ÇAKMAK, İBRAHİM; Uludağ Üniversitesi/Tıp Fakültesi/Mikrobiyoloji ve Enfeksiyon Hastalıkları Anabilim Dalı.; Uludağ Üniversitesi/Teknik Bilimler Meslek Yüksekokulu.; Uludağ Üniversitesi/Veteriner Fakültesi/Parazitoloji Anabilim Dalı.; Uludağ Üniversitesi/Veteriner Fakültesi/Mikrobiyoloji Anabilim Dalı.; Uludağ Üniversitesi/Mustafakemalpaja Meslek Yüksekokulu.; 0000-0002-9347-8307; 0000-0001-5428-3630; 0000-0002-6307-5179; AAG-8392-2021; AAG-8117-2021; AAH-2558-2021; AAK-4470-2021; HLG-4450-2023
    American Foulbrood and European Foulbrood diseases of honeybees were examined in 725 beehives from 23 apiaries located in the South Marmara Region of Turkey. We determined that 19 apiaries were infected and the suspected clinical signs of foulbrood diseases were investigated in 102 beehives by PCR and cultural method. Broods and combs from colonies with suspected clinical symptoms of foulbrood diseases were collected and cultured for bacteriological examination. All of the specimens contaminated with bacteriae and 37 species of bacteriae were isolated such as Stapylococcus epidermidis, Bacillus subtilis, Corynebacterium jeikum, Corynebacterium pseudotuberculosis, Bacillus spp. All of these bacteria are related to human, animal and environmental origins. In this study, Paenibacillus larvae by PCR amplifying the 973-bp region PL1 and PL2 with 1f, Melissococcus plutonius amplifying the 973-bp region EFB-F and EFB-R gene were amplified. American Foulbrood causative agent Paenibacillus larvae and European Foulbrood causative agent Melissococcus plutonius were not detected in any sample examined by PCR and cultural methods. On the other hand, Paenibacillus alvei that is a seconder agent to European Foulbrood was found in two samples by cultural methods. In conclusion, the results showed that P. larvae and M. plutonius are not present in South Marmara Region. In this study, human, animal and environment originated agents were isolated.