Browsing by Author "Bozkurt, H"

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Change in Serum Concentrations of Interleukin-2 and Interferon-Γ During Treatment of Tuberculosis
(Cambridge Med Publ, 2004) Berktas, M; Guducuoglu, H; Bozkurt, H; Onbasi, KT; Kurtoglu, MG; Andic, S
We aimed to investigate changes in serum concentrations of the cytokines interleukin (IL)-2 and interferon (IFN)-gamma during the clinical course of active tuberculosis, to establish the presence of cellular immunity before and after treatment. Blood samples were taken from 18 patients with active tuberculosis before and 2 months after therapy; IL-2 and IFN-gamma concentrations were evaluated. The mean serum IL-2 concentration before therapy was 164.5 pg/ml (range 12 - 980 pg/ml) and the concentration 2 months after therapy was 92.11 pg/ml (range 1 - 490 pg/ml). The mean serum IFN-gamma concentrations were 10.83 pg/ml (range 1 - 22.2 pg/ml) and 4.64 pg/ml (range 1 - 28.5 pg/ml), respectively. The decrease in concentrations of both cytokines after therapy was statistically significant. Further studies investigating the benefits of adding cytokines to drug treatment for tuberculosis are needed.
Chronic Hepatitis Delta Virus Infection in Eastern Turkey
(Elsevier Science Bv, 2003) Turkdogan, MK; Bozkurt, H; Tuncer, I; Uygan, I; Irmak, H; Buzgan, T; Akdeniz, H
The Effect of Colchicine on the Peritoneal Membrane
(Taylor & Francis inc, 2006) Sayarlioglu, H; Dogan, E; Erkoc, R; Ozbek, H; Bayram, I; Sayarlioglu, M; Bozkurt, H
Peritoneal dialysis (PD) is a treatment modality for patients with renal failure. Peritoneal fibrosis is one of the most serious complications after long-term continuous ambulatory peritoneal dialysis (CAPD). Histological studies in both humans and animals show that chronic peritoneal dialysis results in fibrosis of the peritoneal membrane. In our study, we investigated the effect of colchicine on peritoneal alterations induced by hypertonic PD solution in rats. Sprague-Dawley rats intraperitoneally received saline (control group) once daily, for 28 days, or 3.86% glucose (PDF group), or 3.86% glucose plus colchicine (colchicine group). Animals from each group were sacrificed after 28 days with anesthetized ketamine (60 mg/kg BW). For the PD fluid assessment, 1 h before the sacrifice of animals, 10 mL PD fluid of 2.27% glucose was given, and this fluid was obtained after the sacrifice. The levels of transforming endothelial growth factor ss (TGF-ss), tumor necrosis factor alpha (TNF-alpha) and albumin were investigated both in the peritoneal dialysate and blood, and the levels of malondialdehyde (MDA) were investigated only in peritoneal dialysate. The peritoneal membrane was evaluated histologically by light microscopy. When groups were compared in terms of body weight change, the colchicine group significantly lost weight compared to controls and PDF group (-4.7% 4.5, 3.5% 7.2, 3.0% 1.3, respectively, p = 0.018). Also, the blood albumin level was significantly lower for these in the colchicine group compared to those in the PDF group (2.7 0.35 versus 3.2 0.3 g/dL, respectively, p = 0.048). The blood TGF-ss level was significantly lower in the control group, and no difference was observed between the PDF and colchicine groups (294.4 67.5 versus 787.4 237.4 versus 615.3 235.1 pg/mL, respectively, p = 0.004). The mesothelial thickness found in groups was as follows: control group 102 18.9 mu m, PDF group 128.33 33.1 mu m, colchicine group 117 35.6 mu m ( p = 0.34). In conclusion, a rat model for peritoneal dialysis associated peritoneal derangement without fibrosis could be induced. Colchicine could not prevent peritoneal derangement in this model.
The Effect on Survival of Thoracic Duct Ligation in Experimental Peritonitis
(H G E Update Medical Publ Ltd., 1999) Aydin, M; Guler, O; Yigit, MF; Ugras, S; Bozkurt, H
BACKGROUND/AIMS: It has been shown that systemic bacteremia and endotoxemia in peritonitis is mainly related to lymphatic transport via the thoracic duct. This study was performed to investigate the effect on mortality of thoracic duct ligation in experimental peritonitis. METHODOLOGY: Thirty dogs were divided into three groups. Groups I, II, and LII were control, unligated, and ligated thoracic duct peritonitis groups, respectively. Liver biopsy, blood and peritoneal fluid cultures were taken and survival time was established. RESULTS: Bacteria were determined in peritoneal fluid in all animals in groups II and III. Growing bacteria numbers in group III were two times higher than in group II. While bacterium was grown on blood cultures in all group II animals, growing was determined on blood cultures in only 2 animals in group III. Diffuse necrosis was determined in the liver of 2 animals who died within 72 hours in group II. Another 8 animals had minimal focal necrosis in their livers. Diffuse and progressive necrosis was determined in the liver of all animals in group III. The difference between liver necrosis in group II and group III was found to be statistically significant (p=0.002). CONCLUSIONS: This experimental study demonstrates that thoracic duct ligation decreases bacteremia rates clearly but that mortality increases significantly.
Epidemiological Analysis of Staphylococcus Aureus Strains From Nasal Carriers in a Teaching Hospital
(Luigi Ponzio E Figlio, 2002) Guducuoglu, H; Ayan, M; Durmaz, R; Berktas, M; Bozkurt, H; Bayram, BH
The present study was conducted to assess the epidemiological relation of Staphylococcus aureus isolates from nasal carriers of hospital staff. Nasal swabs were taken from each of 327 personnel. After culturing on blood agar for overnight, probable staphylococcal isolates were identified and subjected to tube coagulase test. After a two-week interval, second nasal swabs were taken from the subjects whose first cultures were positive for S. aureus. Nasal carriage was defined in 58 (17.7%) personnel with positive culture for both sampling time. Antibiogram typing and arbitrarily-primed polymerase chain reaction (AP-PCR) with M13 primer were used for typing of the strains. Antibiotyping distinguished seven types and three subtypes, and 85% of the isolates were clustered in one group. AP-PCR, in contrast, identified 12 distinct patterns with 13 variants. A specific profile was not found among the isolates obtained from the personnel in a particular clinic. These results indicate that antibiotyping has poor discrimination power and heterogeneity among the nasal S. aureus strains in the hospital personnel screened is high.
Prevalence and Antibiotic Sensitivity of Motile Aeromonas in Dogs
(veterinarni A Farmaceuticka Univerzita Brno, 2003) Ceylan, E; Berktas, M; Korkoca, H; Keles, I; Bozkurt, H; Kurtoglu, MG
The present study was carried out to assess the prevalence of motile Aeromonas sp. in the faeces of healthy dogs and to evaluate its susceptibility to some anti-microbial agents. Rectal swabs from 55 domestic dogs were examined for Aeromonas species using alkaline peptone water (pH 8.4) as the enrichment medium and Aeromonas Selective Agar containing 5 mg/l ampicillin as the plating medium. Identification and antibiotic resistance of motile Aeromonas strains was performed using Gram Negative Breakpoint ID panel. After examining these samples, aeromonads were isolated from three (5.45%) dogs. Of those, one was A. sobria, and two were A. caviae. While all isolated strains were sensitive to amikacin, cefoperazone, cefotaxime, cefotetan, ceftazidime, ceftriaxone, cefuroxime, ciprofloxacin, gentamicin, imipenem, piperacillin, tetracycline, ticarcillin, ticarcillin/clavulanate, tobramycin, and trimethoprim/sulfamethoxazole, they were resistant to ampicillin, and ampicillin/sulbactam. In addition, a strain of A. caviae was also resistant to aztreonam. As a result, in the present study, information about the prevalence of Aeromonas in dogs, susceptibility to antibiotics of these microorganisms and its importance for both animal and public health were discussed.
Report of Three Children With Leptospirosis in Rural Area of the East of Turkey
(Tohoku Univ Medical Press, 2003) Kurtoglu, MG; Tuncer, O; Bozkurt, H; Çaksen, H; Berktas, M; Ceylan, E; Kirimi, E
Leptospirosis is a systemic infection usually producing fever with hepatorenal involvement, meningoencephalitis, and hemorrhage. In this article, we present three children between 10 and 13 years of age with leptospirosis. The purpose of this paper is to emphasize that leptospirosis is a problem in our country with farmers/cattle and that leptospirosis should be considered in certain ill children. The main symptoms were headache, fever, fatigue, abdominal pain and unconsciousness. Two patients had hepatic and renal involvement. The other had hepatic, pulmonary and probably pericardial. involvement. In all children spirochetes were demonstrated in blood and urine smears by dark-field microscopy and they were also isolated from urine and blood cultures by using Flecher medium. All patients were treated with penicillin; however, one subsequently required additional antibiotics due to Klebsiella pneumoniae septicemia. While one patient was discharged in a good health, the others were taken to their home by parents without completing treatment. In conclusion, we would like to emphasize that leptospirosis is still a public health problem in our region (Eastern Turkey) in where the majority of population are farmers and raise domestic animals such as cattle in rural areas. Additionally, leptospirosis should be considered in children admitted with headache, unconsciousness, fever and abdominal pain. (C) 2003 Tohoku University Medical Press.
Septicaemia and Meningitis in an Infant
(Blackwell Publishing Asia, 2001) Arslan, S; Bozkurt, H; Güdücüoglu, H; Berktas, M; Çaksen, H; Akçay, G
Tinea Capitis in Van, Turkey
(Wiley, 2002) Metin, A; Subasi, S; Bozkurt, H; Çalka, Ö
Forty patients with an average age of 6.5 +/- 3.2 years (28 male 12 female) who applied to the YYU Medical Faculty Dermatology Department outpatient clinic were investigated. Tinea capitis profunda was determined as the most frequent clinical type. The isolated dermatophytic flora of the patients consisted of Trichophyton verrucosum (43%), T. violaceum (30%), T. rubrum (23%) and T. mentagrophytes (3%). The patients with tinea capitis profunda were mostly from rural areas.