Person: İLKİ, ZEYNEP ARZU
Loading...
Email Address
Birth Date
Research Projects
Organizational Units
Job Title
Last Name
İLKİ
First Name
ZEYNEP ARZU
Name
11 results
Search Results
Now showing 1 - 10 of 11
Publication Metadata only Sağlıklı çocukların orafarenksinde kolonize olan bakteriyel patojenlerin antimikrobiyal duyarlılıkları(Ankara Üniversitesi Tıp Fakültesi Yayınları, 2000-10-11) KARAHASAN, AYŞEGÜL; İLKİ, ZEYNEP ARZU; ÜLGER, NURVER; SÖYLEDİR, GÜNER; Karahasan A., İlki Z. A., Ülger N., Söyledir G.; Cengiz, A. Tevfik; Erdem, Birsel; Dolapçı, G. İştar; Tekeli, F. AlperPublication Metadata only Asymtomatic carriage of Neisseria meningitidis and Neisseria lactamica in relation to Streptococcus pneumoniae and Haemophilus influenzae colonization in healthy children: apropos of 1400 children sampled(2001) KARAHASAN, AYŞEGÜL; Bakir, M.; Yagci, A.; Ulger, N.; Akbenlioglu, C.; Ilki, A.; Soyletir, G.Meningococcal disease is one of the most important causes of morbidity and mortality among children in many parts of the world. Main reservoir of carriage and site of meningococcal dissemination appears to be the upper respiratory tract. Colonization of Neisseria meningitidis and lactamica and factors affecting this carriage were determined in a group of healthy children aged 0-10 years. Meningococcus and N. lactamica carriage were detected in 17 (1.23%) and 245 (17.7%) of 1382 subjects, respectively. Number (%) of serogroups for meningococci was 1 (6), 5 (29), 0 (0), 1 (6), 1 (6), and 9 (53) for A, B, C, D, W135, and Y, respectively. Having more than three household members, elementary school attendance, pharyngeal carriage of Streptococcus pneumoniae and Haemophilus influenzae were associated with carriage of meningococci, whereas age less than 24-month was associated with carriage of N. lactamica. There was a reverse carriage rate between N. meningitidis and N. lactamica by age which may suggest a possible protective role of N. lactamica against meningococcal colonization among pre-school children.Publication Metadata only Epidemiology of Streptococcus pneumoniae pharyngeal carriage among healthy Turkish infants and children(SPRINGER-VERLAG, 2002) KARAHASAN, AYŞEGÜL; Bakir, M; Yagci, A; Akbenlioglu, C; Ilki, A; Ulger, N; Soyletir, GPublication Open Access Microbiology of sinusitis and the predictive value of throat culture for the aetiology of sinusitis(ELSEVIER SCI LTD, 2005-05) ÜLGER, NURVER; Ilki, A; Ulger, N; Inanli, S; Ozer, E; Arikan, C; Bakir, M; Soyletir, GA prospective study of throat cultures and maxillary sinus aspirates from children with chronic sinusitis (n = 21), acute sinusitis (n = 28) or a clinical diagnosis of chronic adenoiditis (n = 41) was performed. Seventy-two bacterial pathogens were isolated from sinus aspirates from 52% of the study population. Haemophilus influenzae was most common pathogen, followed by Moraxella catarrhalis, Streptococcus pneumoniae, Staphylococcus aureus, and group A streptococci. Quantitative throat cultures had positive predictive values of 41%, 53% and 75% for H. influenzae, Strep. pneumoniae and M. catarrhalis, respectively, while negative predictive values were 93-98%, indicating that these three pathogens do not cause sinusitis when absent from the throat.Publication Metadata only Earlier reporting of urine culture results: impact of UroQuick screening system(2009-07-02) İLKİ, ZEYNEP ARZU; ÜLGER, NURVER; SÖYLEDİR, GÜNER; İlki Z. A., Bekdemir P., Ülger N., Söyledir G.Publication Metadata only Downregulation of the expression of bone morphogenetic protein 7 in experimental pyelonephritis(SPRINGER, 2005) ALPAY, HARİKA; Biyikli, NK; Tugtepe, H; Cakalagaoglu, F; Ilki, A; Alpay, HBone morphogenetic protein 7 (BMP 7) is a member of the transforming growth factor (TGF) beta superfamily and is involved in regeneration, repair, and development of specific tissues, for example kidney, gut, lens, and skeleton. BMP 7 has emerged as a renotrophic factor and experimental studies have shown its protective role against fibrotic processes. Tubulointerstitial changes are present in the pyelonephritic kidney which progresses to fibrosis. Renal fibrosis may lead to significant morbidity in the form of hypertension, proteinuria, and loss of renal function. The objective of this study was to investigate BMP 7 expression in experimental acute and chronic pyelonephritis models. Eighteen Wistar rats were injected with 0.1 mL solution containing E. coli ATCC 25922 10(10) cfu mL(-1) into left renal medullae. Six rats were used as a sham group and were given 0.1 mL 0.9% NaCl. Pyelonephritic rats were sacrificed 24 h (group I, n=6), 1 week (group II, n=6), and 6 weeks (group III, n=6) after E. coli injection. Serum creatinine levels were analyzed. Renal tissues were studied histopathologically by use of hematoxylin and eosin and scored for diagnosis of pyelonephritis. BMP 7 expression was studied semiquantitatively by immunohistochemical staining. Acute (group I) and chronic (group II and group III) pyelonephritic histopathological changes were observed in experimental pyelonephritic groups. A gradual decrease in BMP 7 expression was observed in the tubulointerstitial and tubular area of the pyelonephritic kidneys, mildest in the acute pyelonephritic group and most severe in the chronic pyelonephritic 6th week group. A statistically significant difference was observed between tubulointerstitial BMP 7 expression by groups I and III (P=0.017) and by groups III and IV (P=0.000). Tubular BMP 7 expression was statistically significantly different between groups II and IV (P=0.009) and between groups III and IV (P=0.002). The data imply that BMP 7 has a major role in chronic pyelonephritis. Tubulointerstitial and tubular BMP 7 expression also had a significant negative correlation with fibrosis, tubular, atrophy, and vascular changes. Serum creatinine levels of the study group were all normal. We conclude that the decrease in renal BMP 7 expression in experimental chronic pyelonephritis is one of the factors responsible for fibrotic changes in persistent renal damage.Publication Metadata only High prevalence of amebiasis in ulcerative colitis patients compared to Crohn’s disease;ten year follow-up results from a university hospital, Turkey(2006-03-24) DUMAN, DENİZ; İLKİ, ZEYNEP ARZU; HASDEMİR GÖKBOĞA, MÜNEVVER UFUK; Duman D., İlki Z. A., Hasdemir Gökboğa M. U., İmeryüz N., Tüzün N., Hamzaoğlu H.Publication Metadata only Pharyngeal colonization with Haemophilus influenzae type b among healthy Turkish infants and children(2002) KARAHASAN, AYŞEGÜL; Bakir, Mustafa; Yagci, Aysegul; Ulger, Nurver; Akbenlioglu, Cengiz; Ilki, Arzu; Soyletir, Guner; Basaran, MujdatBACKGROUND: An absence of Haemophilus influenzae type b (Hib) disease surveillance and epidemiological data on the pharyngeal carriage of Turkish children causes delay in the introduction of conjugated Hib vaccination into proposed national vaccination programs. METHODS: Oropharyngeal cultures were obtained from 1404 healthy infants and children. Six healthy child clinic (HCC), 11 day-care centers (DCC) and seven elementary schools (ES) were randomly selected in seven different counties at the Anatolian side of Istanbul between January and April 2000. RESULTS: Haemophilus influenzae was isolated from 315 (22.8%) of all participants and 98 (31%) isolates were serotype b. The carriage rate for Hib was higher in children at DCC (43 out of 448, 9.6%) and ES (46 out of 504, 9.1%) compared to infants 0-24 months of age (nine out of 430, 2.1%) presented to HCC. All Hib isolates were susceptible to azithromycin, chloramphenicol and cefotaxime. Beta-lactamase production was detected in only one isolate. Trimethoprim-sulfamethoxazole resistance was found in 8.5% of Hib isolates. Multivariate analysis showed that DCC and ES attendance were independent predictors of Hib carriage. CONCLUSION: A significant proportion of healthy Turkish children was shown to be colonized with Hib. The burden of invasive Hib infections should be determined in order to evaluate the Hib conjugated vaccine as a part of a routine immunization program in Turkey.Publication Metadata only Antimicrobial resistance surveillance of major invasive pathogens in Turkey:Preliminary results from the Armed Project(2005-10-13) SÖYLEDİR, GÜNER; İLKİ, ZEYNEP ARZU; Gür D., Hasçelik G., Erciş S., Arıkan O., Uysal S., Özinel M., Gülay Z., Vilken T., Bal Ç., Aktaş Z., et al.Publication Metadata only Surveillance of Haemophilus influenzae among respiratory tract samples of Turkish children(2003) KARAHASAN, AYŞEGÜL; Yagci, Aysegul; Ilki, Arzu; Akbenlioglu, Cengiz; Ulger, Nurver; Inanli, Selcuk; Söyletir, Güner; Bakir, MustafaWe conducted three prospective studies of Haemophilus influenzae in different groups of children. Pharyngeal swab samples were taken (i). from 1382 healthy infants and children between 0 and 10 years of age (group 1), attending well child clinics (n=438), day care centres (n=440) and elementary schools (n=504), and (ii). from 322 children aged 2-10 years (group 2), clinically diagnosed as having upper respiratory tract infection. Pharyngeal swab samples and sinus aspirates were obtained from 49 children between 2 and 9 years of age (group 3), clinically diagnosed as having sinusitis. H. influenzae was isolated in similar rates from 315 (22.7%) of children in group 1, 72 (22.3%) of children in group 2 and 12 (24.4%) of children in group 3. Serotype b comprised 7, 5.2 and 2% of all H. influenzae isolates for group 1, 2 and 3, respectively. Production of beta-lactamase was detected in 1.0% of H. influenzae type b isolates in group 1, 1.2 and 6.1% of all isolates in group 2 and 3, respectively. There were no beta-lactamase negative ampicillin-resistant strains.