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Öğe Detection of extended spectrum beta-lactamases and antibiotic susceptibilities of Klebsiella pneumoniae strains(2001) Tekereko?lu M.S.; Ayan M.; Otlu B.; Taştekin N.; A?el H.E.; Durmaz B.; Özerol I.H.One hundred Klebsiella pneumoniae strains isolated from various clinical specimens were investigated for the presence of extended spectrum beta-lactamases (ESBL) and the antimicrobial susceptibility patterns. The ESBL production was detected in 44% of strains isolated from inpatients and 14% of strains isolated from outpatients. The antimicrobial susceptibility rates of the total 100 strains and ESBL positive 58 strains were found to be as follows respectively: Cephalotin and cefuroxime 40% and 0%, cefoxitin 78% and 100%, ceftazidime 48% and 20%, cefotaxime 56% and 20%, ceftriaksone 52% and 18%, gentamicin 66% and 40%, amikacin 70% and 65%, ciprofloxacin 88% and 90%, imipenem 80% and 90%, meropenem 100% and 100%, aztreonam 50% and 30%, amoxicillin-clavulonic acid 28% and 10%, and trimethoprimsulphametoxazole 72% and 40 percent. The results indicated that ciprofloxacin, imipenem and meropenem might be used in the therapy of infections due to K. pneumoniae.Öğe Effect of nitric oxide on bacterial translocation in experimental intestinal obstruction(Turkish Surgical Society, 2001) Hasano?lu A.; Karadaş K.; Türköz Y.; Özerol I.H.; Tekereko?lu M.S.; Aydin N.E.; Ertaş E.Bacterial translocation is defined as the passage of endogenous bacteria from the gastrointestinal tract to the mesenteric lymph nodes and other organs that suggested to be the cause of sepsis in patient with multiple organ failure. The aim of this study was to investigate the antibacterial effect of nitric oxide by using nitric oxide synthetase enzyme inhibitors such as L-NAME and aminoguanidin in the obstructive intestinal rat model. Fourty rats were divided into four groups. The first one was control group and had only laparatomy. Intestinal obstruction was performed to second group, intestinal obstruction + L-NAME (L-NG-nitro-L-arginine methyl ester) were applied to third group. Fourth group had intestinal obstruction and aminoguanidin was injected to them. According to the histopathological study of the intestine, group III demonstrated less ulceration than groups II and IV (p<0.05). Mucosal damage and bacterial translocation showed no correlation according to the results. The incidence of bacterial translocation was 46.6% in group II, 73.3% in group III and 90% in group IV. Eighty two percent of isolated bacteria was typical enteric Gram negative organisms. Bacterial translocation was not observed in control group. Plasma nitric oxide levels of groups were 14.0±3.3, 31.2±7.6, 12.2±2.5, and 10.5±1.8 ?mol/L, respectively. As a conclusion; nitric oxide can damage mucosal integrity that may increase bacterial translocation but the antibacterial effect of nitric oxide may be more effective and nitric oxide can decrease the translocation of bacteria from gut.Öğe Investigation of serum IgG subclass distributions and anti-HBs response in healthy adults after hepatitis B vaccination(2005) Dinç But A.; Ersoy Y.; Özerol I.H.; Firat M.The aim of this study was to evaluate the distribution of serum total lgG (tlgG) subtypes before and after hepatitis B vaccinations in young adults and the relationship between anti-HBs titers and tlgG subtypes. Thirty-eight young adults (29 female, 9 male; age range: 18-20 years) who were the students of Malatya Health Care Profession High School were included in the study. Their anti-HBs and total anti-HBc markers' were negative. The study group were immunized with 20 ?g/mL recombinant HBV vaccine intramuscularly (Engerix B) at 0, 1st, and 6th months. The tlgG subtype distributions before vaccination and anti-HBs and tlgG subtype distributions after vaccination were investigated. Serum samples were collected one month after the third dose vaccination, and anti-HBs were found negative (<10 IU/ml) in 8 subjects (21%), low positive (10-100 IU/ml) in 14 subjects (37%), and high positive (>100 lU/ml) in 16 subjects (42%). There was no difference between the response groups in terms of tlgG subtype distributions obtained before vaccination. After vaccination, while there was no increase in the tlgG subtypes in the unresponsive group, increased lgG1 levels were determined in low and high response groups. The lgG1 increment ratio was more evident in high response cases. We concluded that lgG1 subtype titer was the most important indicator for the evaluation of the efficacy of active HBV immunization.Öğe Tularemia: A Case Transmitted from a Sheep(1999) Senol M.; Özcan A.; Karincaoglu Y.; Aydin A.; Özerol I.H.Tularemia is an arthropod-borne infectious disease caused by Francisella tularensis, a gram-negative microorganism that normally resides in a wide range of wild and domestic animals. The disease is characterized by a sudden onset with high fever, headache, malaise, chills, myalgia, and arthralgia. A short time after exposure, an inflamed and ulcerated lesion rapidly appears at the site of entry. A regional lymphadenopathy follows the cutaneous presentation. Cultures from the lesions or blood generally give negative results. Histopathologic examination reveals either a nonspecific inflammatory infiltrate or an infectious granuloma. The most useful laboratory procedure in the diagnosis of tularemia is serologic tests. Streptomycin, gentamicin, and tetracycline are the drugs of choice in the treatment Quinolones are also effective. Tularemia is fairly rare in Turkey. We present a typical case of ulceroglandular tularemia transmitted from a sheep to a young man.
