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Sarıçam İnce S, Akan M. Distribution of antimicrobial resistance and virulence markers in chicken originated Proteus mirabilis isolates. Acta Vet Hung 2024; 72:11-20. [PMID: 38578700 DOI: 10.1556/004.2023.00990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 02/12/2024] [Indexed: 04/07/2024]
Abstract
Proteus mirabilis is a common enteric bacterium in livestock and humans. The increase and spread of the antimicrobial resistant P. mirabilis is considered alarming worldwide. Transmission mainly occurs through consumption of contaminated poultry products. We investigated antimicrobial resistance (AMR) and virulence markers in broiler chicken-originated P. mirabilis isolates from 380 fecal samples. Phenotypic AMR test was performed against seventeen different antimicrobials. Genotypic AMR test was performed to detect sixteen different AMR genes. The samples were also tested for the presence of eight different virulence genes and biofilm formation. P. mirabilis was isolated in 11% of the samples, with significantly high multidrug-resistant (MDR) prevalence (63%). All isolates were resistant to tetracycline (100%). The combined disc method indicated that all isolates were of extended-spectrum beta-lactamase (ESBL) producers, which was compatible with the high blaTEM prevalence (95%). This was associated with blaTEM being responsible for more than 80% of ampicillin resistance in enteric pathogens. The absence of phenotypically carbapenem-resistant isolates was compatible with the very low prevalences of blaOXA (2%) and blaNDM (0%). All isolates were positive for pmfA, atfA, hpmA, and zapA (100%) virulence genes, while biofilm formation rate (85%) indicated high adherence abilities of the isolates.
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Affiliation(s)
- Seyyide Sarıçam İnce
- Department of Microbiology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| | - Mehmet Akan
- Department of Microbiology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
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Taşdemir AN, Onbaşılar EE, Yalçın S, Boyalı B, Aygören H, Tülek E, Sarıçam S, Akan M. Effects of oregano juice on eggshell microbial load, layer embryo development, hatching results, and growth at the first 2 weeks after hatch. Trop Anim Health Prod 2021; 53:404. [PMID: 34278537 DOI: 10.1007/s11250-021-02850-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 07/09/2021] [Indexed: 10/20/2022]
Abstract
One of the factors affecting the hatching results and chick quality is the implementation of an appropriate disinfection program with effective disinfectants. This study was carried out to evaluate the effectiveness of oregano juice as a disinfection of hatching layer eggs as an alternative to formaldehyde. In the study, 1800 eggs collected from 48-week old Akbay white layer breeders were used. Eggs were divided into 3 equal disinfection groups (fumigation with formaldehyde, 50% oregano juice, and 100% oregano juice). In the study, the characteristics of the eggshell, microbial load, embryo development, egg weight loss, hatching results, chick weight and quality, and performance in the first 2 weeks were determined. No differences were observed among the disinfection groups in egg shell characteristics, microbial load in the shell, hatchability of fertile and set eggs, embryonic deaths, and body weight, body weight gain, and feed conversion ratio in female chicks. Egg weight loss was higher (P < 0.001) in the 50% oregano juice group (13.75%) compared to the formaldehyde fumigation group (12.11%). Chick quality score was found to be lower in the formaldehyde fumigation group (96.44) compared to the other two oregano juice groups (P < 0.001). The chicks hatched from the eggs in the formaldehyde fumigation group consumed more feed (119 g/week) in the first 2 weeks (P < 0.001). The use of 50% oregano juice in the disinfection of hatching eggs did not have any negative effects compared to the fumigation process with formaldehyde. Therefore, it is concluded that disinfection with 50% oregano juice was effective in reducing the microbial load in the egg shell as much as formaldehyde fumigation, and even it was superior in chick quality score.
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Affiliation(s)
| | - E E Onbaşılar
- Department of Animal Breeding and Husbandry, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey.
| | - S Yalçın
- Department of Animal Nutrition and Nutritional Diseases, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| | - B Boyalı
- Poultry Research Institute, Ankara, Turkey
| | - H Aygören
- Poultry Research Institute, Ankara, Turkey
| | - E Tülek
- Poultry Research Institute, Ankara, Turkey
| | - S Sarıçam
- Department of Microbiology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| | - M Akan
- Department of Microbiology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
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Onbaşılar EE, Kahraman M, Güngör ÖF, Kocakaya A, Karakan T, Pirpanahi M, Doğan B, Metin D, Akan M, Şehu A, Erbay Elibol FK, Yalçın S. Effects of cage type on performance, welfare, and microbiological properties of laying hens during the molting period and the second production cycle. Trop Anim Health Prod 2020; 52:3713-3724. [PMID: 33001365 DOI: 10.1007/s11250-020-02409-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 09/24/2020] [Indexed: 11/28/2022]
Abstract
As most of the unenriched cages will soon switch to enriched cages, it is important to characterize all the effects in the laying hens for sustainable production. Laying hens can be used in several production periods by applying molting. The aim of this study was to determine the cage type (unenriched and enriched) on performance, welfare, and microbiological properties of laying hens during the molting period and the second production cycle. Overall, 840 brown laying hybrids were used in the experiment. Laying hens were reared on two different cage types (unenriched cage (UEC) and enriched cage (EC)) in the same poultry house. When the hybrids were 75 weeks old, they were subjected to force molting with whole grain barley. Performance, welfare, microbiological, and serological data of laying hens were obtained from 73 to 107 weeks of age. Egg production, egg weight, feed conversion ratio, breaking strength, albumen and yolk index, Haugh unit, feather condition, and breaking force of femur and metatarsus were better in the post-molting period. However, keel bone deformities and Newcastle disease virus antibody titers are the worst in the post-molting period. Stiffness of femur and metatarsus was increased with period. These results indicate that necessary precautions should be taken against the problems that may occur in the direction of bone and health. During the molting period, hens kept in EC had lower egg production but they returned to egg production at a high rate. EC type had a positive effect on egg production, feed conversion ratio, feather and foot condition, and breaking force of metatarsus.
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Affiliation(s)
- E E Onbaşılar
- Department of Animal Breeding and Husbandry, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey.
| | - M Kahraman
- Department of Animal Breeding and Husbandry, Faculty of Veterinary Medicine, Harran University, Urfa, Turkey
| | - Ö F Güngör
- Department of Veterinary, Bolu Abant İzzet Baysal University, Vocational School of Mudurnu Süreyya Astarcı, Bolu, Turkey
| | - A Kocakaya
- Department of Animal Breeding and Husbandry, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| | - T Karakan
- Department of Animal Nutrition and Nutritional Diseases, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| | - M Pirpanahi
- Department of Animal Nutrition and Nutritional Diseases, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| | - B Doğan
- Department of Microbiology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| | - D Metin
- Department of Animal Nutrition and Nutritional Diseases, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| | - M Akan
- Department of Microbiology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| | - A Şehu
- Department of Animal Nutrition and Nutritional Diseases, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| | - F K Erbay Elibol
- Department of Biomedical Engineering, TOBB University of Economics and Technology, Ankara, Turkey
| | - S Yalçın
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Selçuk University, Konya, Turkey
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Karacan Sever N, Akan M. Molecular analysis of virulence genes of Salmonella Infantis isolated from chickens and turkeys. Microb Pathog 2018; 126:199-204. [PMID: 30403968 DOI: 10.1016/j.micpath.2018.11.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 09/19/2018] [Accepted: 11/02/2018] [Indexed: 11/26/2022]
Abstract
In this study, virulence genes of S. Infantis strains, which are commonly isolated from chickens and turkeys in Turkey, were analyzed, and the virulence genes of S. Infantis and other common serovars aside from S. Infantis were compared. In this study, 200 S. Infantis strains isolated from litter, powder, environmental sources, rodent samples and broiler chicken carcasses from a chicken slaughterhouse obtained from chickens (broiler chickens, breeders, laying hens) and 24 S. Infantis strains isolated and identified from litter, powder, environmental and rodent samples obtained from turkeys were analyzed. A total of 40 strains, comprising 10 strains from each Salmonella serovar (S. Typhimurium, S. Enteritidis, S. Kentucky and S. Hadar) (chicken-origin) were also selected from the collection of strains for comparison with S. Infantis strains. The virulence genes of 264, comprising 224 S. Infantis strains and 40 strains from common serovars other than S. Infantis were analyzed. A conventional polymerase chain reaction (PCR) was used to analyze the 11 genes associated with the virulence (sipA, sipD, sopD, sopB, sopE, sopE2, sitC, ssaR, sifA, spvC and pefA) in these strains. SipA, ssaR and sopE genes were found in the 209 S. Infantis strains (93.3%), sipD in 208 (92.85%), sopB in 207 (92.41%), sitC in 206 (91.96%), sifA in 203 (90.62%), sopD in 198 (88.39%), sopE2 in 166 (74.1%), spvC in 20 (8.92%) and the pefA virulence gene in one strain (0.44%). It was found that 74.55% of S. Infantis strains were distributed in gene patterns 1 and 2. In this study, the sopE2 virulence gene in S. Infantis strains was analyzed for the first time. The involvement of the dominant gene patterns of the S. Infantis strains isolated from broiler chicken and broiler chicken carcasses, and the fact that none of S. Infantis strains belonging to the breeders and laying hens were included in these patterns, indicated that S. Infantis entered the broilers not through the breeders, but through environmental factors. The presence of sipA, sipD, sopD, ssaR, sopB, sopE, sifA and sitC virulence genes in S. Infantis strains were found to be similar, but remarkable differences were found compared to the S. Typhimurium and S. Enteritidis strains in the presence of sopE2, spvC and pefA virulence genes. This study examining the virulence genes of S. Infantis strains provides detailed information aimed at providing an understanding of the pathogenesis and epidemiology of Salmonella in poultry.
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Affiliation(s)
- Nurdan Karacan Sever
- Department of Microbiology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey.
| | - Mehmet Akan
- Department of Microbiology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
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Erdost H, Ozkardesler S, Akan M, Iyilikci L, Unek T, Ocmen E, Dalak R, Astarcioglu I. Comparison of the RIFLE, AKIN, and KDIGO Diagnostic Classifications for Acute Renal Injury in Patients Undergoing Liver Transplantation. Transplant Proc 2016; 48:2112-8. [DOI: 10.1016/j.transproceed.2016.03.044] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 03/23/2016] [Indexed: 11/29/2022]
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Mavioğlu O, Ozkardeşler S, Taşdöğen A, Akan M, Candüz B. Effect of Analgesia Administration Timing on Early Post-operative Period Characteristics: A Randomized, Double-blind, Controlled Study. J Int Med Res 2016; 33:483-9. [PMID: 16224843 DOI: 10.1177/147323000503300502] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This study investigated the effect of time of analgesia administration in 64 patients undergoing total abdominal hysterectomy. Patients received standard general anaesthesia and were divided randomly into two equal groups. At the time of fascia closure, patients in the intra-operative (Iop) group received 0.5 mg/kg pethidine intravenously. On arrival in the post-anaesthesia care unit, the same dose of pethidine was given to patients in the post-operative (Pop) group. All patients then used a patient-controlled analgesia pump to administer pethidine analgesia as required. Times to extubation, response to verbal stimulation and orientation, post-operative pain scores and analgesic consumption were recorded. Times to extubation and response to verbal stimulation were significantly longer in the Iop group. Pain scores, analgesic consumption and additional analgesic requirements were significantly higher in the Pop group in the first 2 h post-operatively. In conclusion, intra-operative administration of pethidine provided better pain management than post-operative administration.
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Affiliation(s)
- O Mavioğlu
- Department of Anesthesiology and Reanimation, Dokuz Eylül University Medical School, Izmir, Turkey.
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Akan M, Ozbilgin S, Boztas N, Celik A, Ozkardesler S, Ergur BU, Guneli E, Sisman AR, Akokay P, Meseri R. Effect of magnesium sulfate on renal ischemia-reperfusion injury in streptozotocin-induced diabetic rats. Eur Rev Med Pharmacol Sci 2016; 20:1642-1655. [PMID: 27160141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE Ischemia/reperfusion (I/R) injury is a major cause of acute organ dysfunction and I/R related acute renal failure is a common clinical problem. Diabetes mellitus is defined as a risk factor for the development of acute renal injury as diabetic nephropathy compromises the renal tolerance to ischemia. The aim of this study was to investigate the protective effect of magnesium sulfate in a diabetic rat renal I/R injury model. MATERIALS AND METHODS Diabetes mellitus was induced using streptozotocin. Thirty-five rats were divided into five groups: Group I: Nondiabetic sham group; Group II: Diabetic sham group; Group III: Diabetic I/R group; Group IV: Diabetic I/R + prophylactic (preischemic) MgSO4; and Group V: Diabetic I/R + therapeutic (following reperfusion) MgSO4 group. MgSO4 was administered 200 mg/kg intraperitoneally. Renal I/R (45 min ischemia + 4 h reperfusion) was induced in both kidneys. Histomorphological, immunohistochemical (caspase-3 and iNOS) and biochemical (BUN, Creatinine) methods were performed to assess the blood and tissue samples. RESULTS Histomorphological injury scores and immunostaining intensities (for both caspase-3 and iNOS) were significantly lower in the MgSO4 administered groups (prophylactic and therapeutic) than in the Diabetic IR group. There were no significant differences in biochemical parameters (BUN, Cr) between the MgSO4 administered groups and the Diabetic IR group. CONCLUSIONS In the present study, it was demonstrated by histomorphological and immunohistochemical methods that magnesium sulfate administration before ischemia or following reperfusion significantly reduced renal I/R injury in a diabetic rat model.
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Affiliation(s)
- M Akan
- Department of Anesthesiology and Reanimation, Faculty of Medicine, Dokuz Eylül University, Izmir, Turkey.
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Aksu Erdost H, Ozkardesler S, Ocmen E, Avkan-Oguz V, Akan M, Iyilikci L, Unek T, Ozbilgin M, Meseri Dalak R, Astarcioglu I. Acute Renal Injury Evaluation After Liver Transplantation: With RIFLE Criteria. Transplant Proc 2016; 47:1482-7. [PMID: 26093748 DOI: 10.1016/j.transproceed.2015.04.065] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
BACKGROUND The aim of this study was to identify acute renal injury (ARI) through the use of RIFLE (risk, injury, failure, loss, end-stage kidney disease) criteria and to investigate perioperative risk factors for ARI in liver transplantation (LT). METHODS We reviewed medical records of adult LT patients retrospectively. Postoperative ARI was staged with RIFLE criteria by the 1st and 7th days of the surgery. RESULTS We analyzed 440 adult LT patients, categorized as risk (R), injury (I), or failure (F) according to the RIFLE criteria. In this study, in the first postoperative day, incidence of ARI was 7.95%; all of them were R-class, and, on the 7th day, the incidence of ARI was 7.27%, as R-class 6.59% and I-class 0.68%. Significant risk factors were detected within the first postoperative day including pre-operative hemoglobin levels <9 g/dL (P = .019), intra-operative transfusion of red blood cells (RBCs) (P = .049) and fresh-frozen plasma (FFP) (P = .049), blood loss (P = .011), and post-reperfusion syndrome (P = .023). Multivariate analysis revealed risk factors for ARI as RBCs (odds ratio [OR], 1.049; P = .247) and FFP (OR, 1.017; P = .627) transfusion and blood loss (OR, 1.000; P = .021) (blood loss OR: 0.9996952300184; 95% confidence interval: 0.9994356774026 to 0.999548500399). The only significant risk factor for the 7th postoperative day was the Model for End-Stage Liver Disease (MELD) score (>20) (P = .002). CONCLUSIONS This study showed that RBC and FFP transfusion, perioperative blood loss, and MELD score >20 are risk factors for LT-related ARI. Also normalization of hemoglobin levels with non-blood products in patients with preoperative low hemoglobin levels can diminish the need for RBC and that can prevent ARI.
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Affiliation(s)
- H Aksu Erdost
- Department of Anesthesiology and Reanimation, School of Medicine, Dokuz Eylul University, Izmir, Turkey.
| | - S Ozkardesler
- Department of Anesthesiology and Reanimation, School of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - E Ocmen
- Department of Anesthesiology and Reanimation, School of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - V Avkan-Oguz
- Department of Infectious Disease and Clinical Microbiology, School of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - M Akan
- Department of Anesthesiology and Reanimation, School of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - L Iyilikci
- Department of Anesthesiology and Reanimation, School of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - T Unek
- Department of General Surgery, School of Medicine, Dokuz Eylül University, Izmir, Turkey
| | - M Ozbilgin
- Department of General Surgery, School of Medicine, Dokuz Eylül University, Izmir, Turkey
| | - R Meseri Dalak
- Department of Nutrition and Dietetics, Faculty of Science, Ege University, Izmir, Turkey
| | - I Astarcioglu
- Department of General Surgery, School of Medicine, Dokuz Eylül University, Izmir, Turkey
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Müştak H, Torun E, Özen D, Yücel G, Akan M, Diker K. Effect ofLonicera japonicaextract onMycoplasma gallisepticumin naturally infected broiler flocks. Br Poult Sci 2015; 56:299-303. [DOI: 10.1080/00071668.2015.1022711] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ongor H, Kalin R, Karahan M, Cetinkaya B, Akan M. Detection of mycoplasma species in turkeys by culture and polymerase chain reaction. REV SCI TECH OIE 2010; 28:1103-9. [PMID: 20462169 DOI: 10.20506/rst.28.3.1955] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The purpose of the present study was to investigate the presence of pathogenic mycoplasma species in the turkey population of Turkey. Tracheal samples randomly collected from a total of 624 apparently healthy meat-type turkeys at a commercial abattoir located in the north of the country were examined by culture and genus- and species-specific polymerase chain reaction (PCR) assays for mycoplasma. In the direct plating onto solid specific media, mycoplasma growth was observed from 1.4% (9/624) of the samples, which were confirmed to belong to the Mycoplasma genus by genus-specific PCR. Mycoplasma iowae (MI) and M. meleagridis (MM) were identified by the species-specific PCR from eight and one of the samples, respectively. However, genus-specific PCR amplification was obtained from 2.6% (16/624) of the samples which produced turbidity in the liquid media. Interestingly, these positive samples were different from those obtained from solid agar and mycoplasma growth was not observed when the broth samples were inoculated onto solid media. In the species-specific PCR analysis of the broth samples, MI, MM and M. gallisepticum were identified from twelve, two and two samples, respectively. The inconsistency between the results obtained from liquid and solid media raises questions about the efficiency of isolation procedures for mycoplasma and this warrants further investigation.
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Affiliation(s)
- H Ongor
- Department of Microbiology, Faculty of Veterinary Medicine, University of Firat, 23119 Elazig, Turkey.
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Ozkardesler S, Ozzeybek D, Alaygut E, Unek T, Akan M, Astarcioglu H, Karademir S, Astarcioglu I, Elar Z. Anesthesia-related complications in living liver donors: the experience from one center and the reporting of one death. Am J Transplant 2008; 8:2106-10. [PMID: 18828770 DOI: 10.1111/j.1600-6143.2008.02367.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Living donor liver transplantation has become an alternative therapy for patients with end-stage liver disease. Donors are healthy individuals and donor safety is the primary concern. The objective of this study was to evaluate the anesthetic complications and outcomes for our donor cases; we report one death. The charts of the patients who underwent donor hepatectomy from February 1997 to June 2007 were retrospectively reviewed. Right hepatectomy (resection of segments 5-8) was done in 101 donors, left lobectomy (resection of segments 2-3) in 11 donors, and left hepatectomy (resection of segments 2-4) in one donor. Minor anesthetic complications were shoulder pain, pruritus and urinary retention related to epidural morphine, and major morbidity included central venous catheter-induced thrombosis of the brachial and subclavian vein, neuropraxia, foot drop and prolonged postdural puncture headache. One of 113 donors died from pulmonary embolism on the 11th postoperative day. This procedure has some major risks related to anesthesia and surgery. Although careful attention will lower complication rate, we have to keep in mind that the risks of donor surgery will not be completely eliminated.
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Affiliation(s)
- S Ozkardesler
- Department of Anesthesiology and Reanimation, Medical Faculty of 9 Eylul University, Izmir, Turkey
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Sareyyüpoğlu B, Ok AÇ, Cantekin Z, Yardımcı H, Akan M, Akçay A. Polymerase Chain Reaction Detection of Salmonella spp. in Fecal Samples of Pet Birds. Avian Dis 2008; 52:163-7. [DOI: 10.1637/8052-070507-reg] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Kocaayan E, Ozkardeşler S, Ozzeybek D, Bayindir S, Akan M. Comparison of effects of preoperatively administered lornoxicam and tenoxicam on morphine consumption after laparoscopic cholecystectomy. Eur J Anaesthesiol 2007; 24:714-9. [PMID: 17519049 DOI: 10.1017/s0265021507000300] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND OBJECTIVE The efficacy, tolerability and the morphine-sparing effects of lornoxicam were compared with those of tenoxicam when used preoperatively in patients undergoing laparoscopic cholecystectomy. METHODS In this prospective, double-blind study, 60 ASA I-II patients undergoing laparoscopic cholecystectomy were randomized equally to receive intravenous tenoxicam 40 mg (Group T) or lornoxicam 16 mg (Group L), preemptively. Three patients withdrew from the study, so 57 patients were included in the analysis. In the postoperative period, the first morphine demand times, pain scores, side-effects and cumulative morphine consumptions were evaluated during the first 24 h. RESULTS The patient characteristics data and the duration of surgery were similar between two groups, except for body weights (P = 0.002). The first morphine demand time was significantly longer in Group L (P = 0.037), but the pain levels did not differ. The mean pain scores were higher in Group T in the 15 min (P = 0.036), 1 h (P = 0.020), 2 h (P = 0.001) and 4 h (P = 0.0042) after extubation. A statistically significant difference between two groups was found in calculated cumulative morphine consumptions per kilogram in the 15 min (P = 0.037), 30 min (P = 0.016), and 1 h (P = 0.004) and 2 h (P = 0.013) between two groups. There was no difference in the severity of nausea but 13 patients in Group T and five patients in Group L had vomiting (P = 0.018). Patient satisfaction was similar in the two groups. CONCLUSIONS Preoperatively administered lornoxicam 16 mg significantly prolonged the first morphine demand time, reduced postoperative morphine consumption during the first 4 h and caused significantly fewer adverse effects when compared with tenoxicam after laparoscopic cholecystectomy.
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Affiliation(s)
- E Kocaayan
- Universal Hospital, Department of Anaesthesiology, Manisa, Turkey
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Karademir S, Astarcioglu H, Ozbilgin M, Ozkardesler S, Yilmaz T, Akarsu M, Akan M, Ozzeybek D, Obuz F, Astarcioglu I. Efficacy of right anterior sector drainage reconstruction in right-lobe live-donor transplantation. Transplant Proc 2007; 38:3582-4. [PMID: 17175337 DOI: 10.1016/j.transproceed.2006.10.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2006] [Indexed: 12/21/2022]
Abstract
BACKGROUND Without including the middle hepatic vein (MHV) into right-lobe grafts, venous drainage of the anterior segment (AS) has always been a concern. The efficacy and the necessity of additional venous reconstruction in the AS for graft viability and function are still controversial. METHODS Since February 2002, 57 right-lobe grafts were implanted into adult recipients. The mean graft to ideal recipient weight ratio (GRWR) was 1.3% (minimum: 0.8%, maximum 2.1%). All minor venous tributaries to the MHV less than 5 mm in diameter were ligated. The management of MHV tributaries was categorized into three groups: (A) no major tributaries (n = 33); (B) major tributaries ligated (n = 11); and (C) major tributaries reconstructed (n = 13). Reconstructions were established using vascular grafts (PTF, n = 8; cadaveric, n = 2) or joining with right hepatic vein orifice (n = 6). The groups were homogenous in age, gender, MELD (17 +/- 6, 16 +/- 4, 18 +/- 7), graft weight (817 +/- 181, 838 +/- 152, and 855 +/- 159 g), and graft/ideal liver weight ratio (0.54 +/- 0.12, 0.57 +/- 0.13, and 0.57 +/- 0.1, respectively). We investigated the volume of ascites, serum bilirubin, albumin, and liver enzyme levels and INR on postoperative day 4 (POD4) and POD21. RESULTS Two patients died of MRSA sepsis on POD18 and POD23 (MELD: 24 and 28) after initial graft function. Their graft weights were 800 g and 980 g, and their volumes were 47% (group B) and 62% (group A) of the ideal liver mass of the recipients, respectively. One PTF and another cadaveric vascular graft were found occluded 4 and 7 days after implantation without any negative consequence. At 6-month follow-up, the remaining 55 patients were alive with primary liver grafts. Vascular reconstructions were patent except for 2 early occlusions. Among the 3 groups, no significant difference was found on POD4. Three weeks after transplantation, the mean AST level in the major ligation group (46.7 +/- 8.14) was significantly higher than in the minor ligatation group (29.6 +/- 8.6) but not in the major reconstruction group (33.7 +/- 3.7; P = .03 and P = .29). The mean albumin level was highest after minor ligation (3.2 +/- 0.18), which was significantly better than the major reconstruction (2.7 +/- 0.1) but not the major ligation (3.1 +/- 0.14) cohorts (P = .02 and P = .13). CONCLUSIONS In this study of a limited number of cases, right-lobe liver grafts with GRWR of > or =1.1% displayed optimal graft function without additional venous reconstruction to the AS.
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Affiliation(s)
- S Karademir
- HPB and Liver Transplantation Study Group, Dokuz Eylul University Hospital, Inciralti, Izmir, Turkey
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Abstract
Infectious bursal disease (IBD), also known as Gumboro disease, is a highly contagious, immunosuppressive disease of immature chickens. It is caused by IBD virus (IBDV) and is responsible for major economic losses in the poultry industry worldwide. In this study, 280 bursa samples from 56 commercially reared chicken flocks in Turkey with clinical symptoms of IBD were examined for IBDVs using the reverse transcription (RT)-polymerase chain reaction (PCR)/restriction fragment length polymorphism (RFLP) assay. The assay was conducted on a 743-bp fragment of the VP2 gene with the restriction enzymes BstNI, MboI, and SspI. The results indicate the existence of field isolates with new molecular patterns different from those previously published that may well be unique and specific to geographical regions.
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Affiliation(s)
- B Sareyyüpoğlu
- Department of Microbiology, Faculty of Veterinary Medicine, Ankara University, 06110, Diskapi, Ankara, Turkey
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Karademir S, Astarcioğlu H, Akarsu M, Ozkardesler S, Ozzeybek D, Sayiner A, Akan M, Tankurt E, Astarcioğlu I. Prophylactic use of low-dose, on-demand, intramuscular hepatitis B immunoglobulin and lamivudine after liver transplantation. Transplant Proc 2006; 38:579-83. [PMID: 16549180 DOI: 10.1016/j.transproceed.2005.12.063] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The combination of hepatitis B immunoglobulin (HBIG) and antivirals (nucleos[t]ide analogs) has extended the applicability of orthotopic liver transplantation (OLT) for patients with hepatitis B virus (HBV)-related liver disease. However, HBIG administrations have an extremely high cost. Herein, we evaluated our results with low-dose, on-demand, intramuscular HBIG plus lamivudine (LAM) prophylaxis after OLT. The HBV DNA status in 40 patients at the time of OLT determined the treatment: group A (n = 22), HBV DNA (-), no antiviral pretreatment; group B (n = 11), HBV DNA (-), after LAM; group C (n = 3), HBV DNA (+) after LAM (LAM resistance/Adefovir [ADV] unavailable); group D (n = 2), HBV DNA (+), no antiviral pretreatment; and group E (n = 2), HBV DNA (-) after LAM + ADV (LAM resistance/ADV available). Five patients died within 12 months after OLT unrelated to HBV infection. The remaining 35 patients were followed for a median duration of 16 months (range, 6-93 months). Only two recipients from group C, who were transplanted despite LAM resistance + no ADV pretreatment, revealed recurrent HBV infections at 14 and 16 months posttransplantation; they were then treated successfully with ADV as it became available. The third group C recipient had undetectable HBV DNA at 18 months after OLT. The mean cumulative doses of HBIG administered within the first, second, and third years were 34,014, 5258, and 5090 IU, respectively. In conclusion, low-dose, on-demand, intramuscular HBIG plus (LAM +/- ADV) prophylaxis is a safe, efficient, and cost-effective regimen to prevent recurrent HBV infection following OLT. OLT despite untreated LAM resistance may require sustained higher serum HBsAb levels after surgery.
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Affiliation(s)
- S Karademir
- Department of General Surgery, Dokuz Eylül University, School of Medicine, Izmir, Turkey.
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17
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Abstract
We report a 10-year-old girl with synchronous multiple pilomatrixomas. Pilomatrixomas are generally solitary tumors; synchronous multiple tumors are very rare. Multiple or recurring tumors may be found in association with various syndromes, and multiple tumors may be familial. Concurrent disorders were not identified in our patient and the etiology of her pilomatrixomas was not understood. Thorough examination of the patient and long-term follow-up are necessary with these tumors.
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Affiliation(s)
- Gülden Avci
- Department of Plastic and Reconstructive Surgery Dr. Lütfi Kirdar Kartal Education and Research Hospital Istanbul, Turkey.
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18
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Abstract
A case of aspergillosis in a broiler breeder flock having respiratory and nervous system problems caused by Aspergillus fumigatus and Aspergillus niger is documented. Dyspnea, hyperpnea, blindness, torticollis, lack of equilibrium, and stunting were observed clinically. On postmortem examination of the affected birds, white to yellow caseous nodules were observed on lungs, thoracic air sacs, eyes, and cerebellum. Histopathologic examination of lungs and cerebellum revealed classic granulomatous inflammation and cerebellar lesions, necrotic meningoencephalitis, respectively. No lesions were noted in the cerebrum histopathologically. Aspergillus hyphae were observed in stained sections prepared from lesioned organs. Fungal spores and branched septate hyphae were observed in direct microscopy. Aspergillus fumigatus and A. niger were isolated from the inoculations prepared from the suspensions of organs showing lesions.
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Affiliation(s)
- Mehmet Akan
- Department of Microbiology, Veterinary Faculty, University of Ankara, Dişkapi, Turkey
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Yildirim S, Akan M, Giderodğlu K, Aköz T. Use of distally based saphenous neurofasciocutaneous and musculofasciocutaneous cross-leg flaps in limb salvage. Ann Plast Surg 2001; 47:568-74. [PMID: 11716273 DOI: 10.1097/00000637-200111000-00018] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Neurocutaneous island flaps have been very popular in soft-tissue coverage of the lower extremities. These flaps are based on the arterial network around the superficial sensory nerves. The advantages of these flaps are easy and quick dissection (hence a time-saving operation), acceptable donor site morbidity, and preservation of major arteries of the leg. The authors used five neurofasciocutaneous and three musculofasciocutaneous flaps successfully as cross-leg flaps for the coverage of relatively large defects of the lower two thirds of the leg and foot in 8 patients. They conclude that reverse saphenous neurofasciocutaneous and musculofasciocutaneous flaps as a cross-leg flap in patients who cannot be reconstructed with other flap alternatives have many advantages over traditional cross-leg procedures, such as short vascularization time, minimal patient discomfort, wide arc of rotation and great versatility, and a safe vascular pattern.
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Affiliation(s)
- S Yildirim
- Department of Plastic and Reconstructive Surgery, Kartal Dr. Lütfü Kirdar Education and Research Hospital, Istanbul, Turkey
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Abstract
Plastic surgeons often encounter tissue defects consisting of the superficial layer of the skin. Fortunately, many of these defects are reconstructed easily with skin grafts. The authors have used the preputium as a skin graft for the reconstruction of skin defects of various sizes and locations in children. The defect size ranged from 2.3 x 4.0 cm to 4.8 x 6.5 cm. The average defect size was 3.5 x 5.5 cm. The defects were caused from trauma, acute burn, and release of burn contractures, and were located in the lower extremity, upper extremity, and scalp. All patients were treated successfully. No complications of the donor area or recipient area were seen. The prepuce should be included as an additional tool in the reconstructive surgeons armamentarium because of its many advantages, including easy harvest, high viability and elasticity, and low donor area morbidity.
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Affiliation(s)
- S Yildirim
- Department of Plastic and Reconstructive Surgery, Kartal Education and Research Hospital, Istanbul, Turkey
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Abstract
BACKGROUND Reports in the literature reveal that malignant eccrine spiradenomas (MES) are exceedingly rare, and represent aggressive tumors arising in long-standing benign eccrine spiradenomas (ES). OBJECTIVE We present a de novo case of MES of the nose, in contrast to reports in the literature of progression from long-standing benign lesions. METHODS Case report and brief review of the literature. RESULTS Our case was accepted as de novo MES because there was no evidence of ES on pathologic examination. It was treated by surgical excision with 1 cm tumor-free margins. No recurrence or complications were observed for 2 months, but long-term follow-up could not be performed because the patient died of adenocarcinoma of the colon. CONCLUSION Although previously reported lesions have arisen in long-standing benign ESs, usually on the trunk or extremities, this report shows that MES may occur as a primary malignant tumor and may occur in unusual locations such as the nose.
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Affiliation(s)
- S Yildirim
- Department of Plastic and Reconstructive Surgery, Dr. Lütfi Kýrdar Kartal Education and Research Hospital, 81040 Göztepe, Istanbul, Turkey.
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Yildirim S, Akan M, Aköz T. Squamous cell carcinoma affecting the nose and lower lip. Ann Plast Surg 2001; 46:456-7. [PMID: 11324896 DOI: 10.1097/00000637-200104000-00023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
AIMS The objectives of this study were to determine the presence of thermophilic Campylobacter spp. in free range domestic geese, and to characterize isolated strains using phenotyping criteria and SDS-PAGE of whole-cell proteins. METHODS AND RESULTS Forty cloacal swabs from two different flocks of domestic geese were examined. All Camp. jejuni strains isolated from geese were biotyped using the Lior biotyping scheme. Twelve Camp. jejuni isolates were also tested for their susceptibility to 17 different antibacterial agents by a disc diffusion METHOD Fourteen of the isolates were also subjected to SDS-PAGE. All of the geese examined were found to harbour Camp. jejuni. Six geese carried more than one species of Campylobacter. All strains examined were susceptible to various antibiotics but resistant to penicillin G and cephalothin. Eleven strains (92%) were resistant to sodium cefuroxime, and eight (67%) were resistant to cloxacillin, ampicillin and colistin sulphate. Three strains (25%) were resistant to tetracycline, and one strain was resistant to sulfamethoxazole/trimethoprim and kanamycin. Nine strains were subtyped as Camp. jejuni subsp. jejuni biotype II and the remaining ones as biotype I. There were 96% and 100% similarities between all the strains examined by SDS-PAGE. CONCLUSION This study showed that Camp. jejuni were common in the intestinal tract of domestic geese. SIGNIFICANCE AND IMPACT OF THE STUDY Geese should be considered as potential reservoirs for human and animal campylobacteriosis. The antibiotic resistance data from this study also showed that fluoroquinolone resistance, which appears to be a problem in poultry isolates in some countries, is not yet a problem in these geese.
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Affiliation(s)
- F Aydin
- Department of Microbiology, Faculty of Veterinary Medicine, University of Kafkas, Kars, 36040 Turkey
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Abstract
BACKGROUND Reconstruction of the medial canthal area presents many challenges for surgeons. It has many functional and cosmetic peculiarities. The combined use of glabellar and nasolabial V-Y advancement flaps is an effective method for repairing large medial canthal defects. OBJECTIVE To describe and illustrate a technique to repair medial canthal defects. METHODS Our experience with combined usage of nasolabial V-Y flap and glabellar flaps for medial canthal closure after tumor resection in 23 patients is reported. RESULTS All resections and reconstructive procedures were performed under local anesthesia. All patients were treated without any complications such as flap loss, wound dehiscence, lymphedema, or ectropion. Fine results were achieved from both the functional and aesthetic point of view. CONCLUSION This combination has many advantages over skin grafts and other local flaps. It is easy to design, reliable, and offers good cosmetic results. This combination is recommended to plastic surgeons as a safe and effective procedure for reconstruction of medial the canthal area.
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Affiliation(s)
- S Yildirim
- Department of Plastic and Reconstructive Surgery, Kartal Education and Research Hospital, Istanbul, Turkey.
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Diker KS, Esendal OM, Akan M. Epidemiology of ovine Campylobacter infection determined by numerical analysis of electrophoretic protein profiles. J Vet Med B Infect Dis Vet Public Health 2000; 47:739-43. [PMID: 11204128 DOI: 10.1046/j.1439-0450.2000.00409.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The relationship of 50 Campylobacter strains isolated from aborted ovine foetuses, and the faeces of sheep, cattle and chickens were determined by numerical analysis of electrophoretic (SDS-PAGE) protein profiles. Comparison of protein patterns by numerical methods revealed differences between C. fetus ssp. fetus, C. jejuni, and C. coli strains as well as heterogeneity among isolates from different outbreaks. Isolates from each farm produced a distinct cluster and flocks from different locations were found to be infected with relatively different strains. In most cases, protein patterns of ovine foetal isolates were very similar to those of ovine faecal isolates. Ovine isolates of C. fetus ssp. fetus, C. jejuni and C. coli gave similar protein patterns to the corresponding Campylobacter species isolated from cattle or chicken, on the same farm. Thus, it was concluded that certain protein types of ovine Campylobacter strains were more likely associated with local areas, and Campylobacter strains causing ovine abortions are distributed in the environment more widely than assumed to date.
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Affiliation(s)
- K S Diker
- Ankara Universitesi, Veteriner Fakültesi, Mikrobiyoloji Anabilim Dali, Ankara 06110, Turkey.
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Abstract
Rhinocerebral mucormycosis is a rare opportunistic infection caused by fungi. It is commonly fatal and aggressive infection localised paranasal sinuses and orbit. We report two cases had necrotising infection on the left nasolabial region. Despite aggressive surgical debridement and medical treatment, the patients died 6 and 7 days after admission. Plastic Surgeons should be aware when they have a patient with rapidly developing soft tissue infection over the paranasal sinuses and periorbital region. Combined treatment is mandatory for these patients. It usually results in death, but powerful efforts may save the patient.
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Affiliation(s)
- T Aköz
- Ankara Numune Hospital, Department of Plastic and Reconstructive Surgery, Turkey
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Diker KS, Akan M, Kaya O. Serotypes and electrophoretic protein profiles of Pasteurella haemolytica isolated from pneumonic ovine lungs. Dtsch Tierarztl Wochenschr 1999; 106:207-9. [PMID: 10379102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Serotypes and SDS-PAGE protein profiles of P. haemolytica isolated from pneumonic ovine lungs were investigated. Of 268 P. haemolytica isolates, 232 (86.6%) were serotypable. A total of 12 serotypes were recognized in 20 different geographic origins of central Turkey. The most common serotype was A2, followed by A7, A1 and T4. Serotypes A13, A14, A16 and T15 could not be detected. In SDS-PAGE, marked differences between major bands of biotype A and T strains were found. In numerical analysis of protein profiles, biotype A and T strains were separated at 58% similarity level. Biotype A isolates produced a cluster at 80% similarity level, and biotype T isolates at 92% similarity level. No single cut off level was able to discriminate between each serotype studied and isolates could not be clustered on the basis of their geographic origins.
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Affiliation(s)
- K S Diker
- Department of Microbiology, Faculty of Veterinary Medicine, University of Ankara, Turkey.
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Abstract
Motile Aeromonas spp. were surveyed in chicken feces, carcasses, scalding water, and chilling water during slaughtering in a commercial processing plant in Turkey. Fecal and carcass samples of 351 chickens from 15 different flocks were examined by selective isolation techniques. All of the 15 flocks were positive for motile aeromonads. Motile aeromonads were detected in 14.8%, 90.5%, and 100% of fecal, carcass, and chilling water samples, respectively, while scalding water samples were negative for these organisms. Aeromonas hydrophila was the predominant species in both feces (51.9%) and carcass (66.9%) samples, followed by A. caviae and A. sobria. These results suggested that during the slaughtering process the spread of motile aeromonads from the intestinal contents to carcasses via processing water caused a heavy contamination of chicken carcasses.
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Affiliation(s)
- M Akan
- Department of Microbiology, Faculty of Veterinary Medicine, Ankara University, Turkey
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Haziroglu R, Diker KS, Gulbahar MY, Akan M, Guvenc T. Studies of the pathology and microbiology of pneumonic lungs of lambs. Dtsch Tierarztl Wochenschr 1994; 101:441-3. [PMID: 7895625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The characteristics of lung lesions of slaughtered lambs and the presence of microorganisms in the lesions were investigated. Pneumonia was detected in 500 (3.6%) of 13,588 lambs. Macroscopical lesions were of atypical pneumonia and were often seen in the pars cranialis of lobus cranialis dexter. Histologically, proliferative pneumonia was detected in most cases and was often accompanied by exudative characteristics. Pasteurella haemolytica was isolated from 258 (51.6%) and Mycoplasma ovipneumoniae from 215 (43.0%) of 500 pneumonic lungs. In 131 (26.2%) cases both organisms were isolated from same samples. A close relationship was found between P. haemolytica and exudative inflammation (p < 0.05).
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Affiliation(s)
- R Haziroglu
- Department of Pathology, Faculty of Veterinary Medicine, University of Ankara
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Diker KS, Akan M, Haziroglu R. Antimicrobial susceptibility of Pasteurella haemolytica and Pasteurella multocida isolated from pneumonic ovine lungs. Vet Rec 1994; 134:597-8. [PMID: 8085324 DOI: 10.1136/vr.134.23.597] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The in vitro susceptibilities of Pasteurella haemolytica biotypes A and T and P multocida from pneumonic ovine lungs to penicillin, ampicillin, oxytetracycline, chloramphenicol, erythromycin, kanamycin, neomycin, gentamicin, streptomycin and lincomycin were determined by the disk diffusion method. All the isolates were sensitive to chloramphenicol and resistant to lincomycin. The isolates of P haemolytica biotype A were consistently more sensitive to penicillin, ampicillin, oxytetracycline, erythromycin and streptomycin than those of biotype T.
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Affiliation(s)
- K S Diker
- Department of Microbiology, Faculty of Veterinary Medicine, Ankara University, Turkey
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Abstract
To assess whether Candida species can penetrate intact fetal membranes under in vitro conditions, Candida albicans, Candida tropicalis, Candida guilliermondii, Candida pseudotropicalis and Candida glabrata were inoculated onto the surface of the maternal side of the membranes obtained from 4 pregnant women undergoing repeat cesarean section. After incubation under culture conditions, membranes were evaluated by histological examination. C. albicans inoculated onto the maternal side penetrated and passed to the fetal side and caused some degeneration of the structure of the membrane epithelium. The other four Candida species grew heavily on the maternal surface but did not penetrate and invade the membranes. This effect of C. albicans on fetal membranes may explain the potential mechanism in the development of Candida infections of the amniotic fluid, fetal membranes and possibly the fetus.
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Affiliation(s)
- T Gürgan
- Department of Obstetrics and Gynecology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
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Abstract
The in vitro phase variation of flagella and the transition rates between flagellate and aflagellate phenotypes in Campylobacter species including C. jejuni, C. coli, C. lari (thermophilic campylobacters), C. fetus subsp. fetus, C. fetus subsp. venerealis and C. hyointestinalis were investigated. The change from the flagellate to aflagellate phenotype was detected in all of the 12 Campylobacter strains studied. When measured in a motility medium, flagellate to aflagellate transition in thermophilic campylobacters, C. fetus and C. hyointestinalis strains occurred at a rate of 1.8 x 10(-3) to 7.5 x 10(-3), 3.0 x 10(-4) to 7.8 x 10(-4) and 1.8 x 10(-5) to 7.7 x 10(-6) per cell per generation, respectively. Transition from aflagellate to flagellate phenotype occurred at a rate of 5.8 x 10(-6) to 9.3 x 10(-6) per cell per generation in thermophilic campylobacters and 1.0 x 10(-6) to 1.5 x 10(-6) in C. fetus strains. No reversion from aflagellate to flagellate phenotype could be detected in C. hyointestinalis strains. It was concluded that the ability to reversibly express flagella was inherent in the wild-type strains and the transition rates for both directions were consistent for each strain.
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Affiliation(s)
- K S Diker
- Department of Microbiology, Faculty of Veterinary Medicine, Ankara University, Turkey
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Diker KS, Akan M, Hascelik G, Emekdas G. Beta-lactamase production in human and animal isolates of Campylobacter jejuni in Turkey. J Antimicrob Chemother 1991; 27:693-4. [PMID: 1885429 DOI: 10.1093/jac/27.5.693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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