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Serdarušić I, Pušeljić N, Šantić K, Drenjančević D, Kardum D. RSV epidemiology during the SARS-CoV-2 pandemic in eastern Croatia. Pediatr Neonatol 2024; 65:103-104. [PMID: 37739872 DOI: 10.1016/j.pedneo.2023.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/17/2023] [Accepted: 08/08/2023] [Indexed: 09/24/2023] Open
Affiliation(s)
- Ivana Serdarušić
- Department of Pediatrics, University Hospital Centre Osijek, J. Huttlera 4, 31000 Osijek, Croatia; Faculty of Medicine, University J. J. Strossmayer Osijek, J. Huttlera 4, 31000 Osijek, Croatia
| | - Nora Pušeljić
- Department of Pediatrics, University Hospital Centre Osijek, J. Huttlera 4, 31000 Osijek, Croatia; Faculty of Medicine, University J. J. Strossmayer Osijek, J. Huttlera 4, 31000 Osijek, Croatia
| | - Krešimir Šantić
- Department of Pediatrics, University Hospital Centre Osijek, J. Huttlera 4, 31000 Osijek, Croatia; Faculty of Medicine, University J. J. Strossmayer Osijek, J. Huttlera 4, 31000 Osijek, Croatia
| | - Domagoj Drenjančević
- Department of Pediatrics, University Hospital Centre Osijek, J. Huttlera 4, 31000 Osijek, Croatia; Faculty of Medicine, University J. J. Strossmayer Osijek, J. Huttlera 4, 31000 Osijek, Croatia
| | - Darjan Kardum
- Department of Pediatrics, University Hospital Centre Osijek, J. Huttlera 4, 31000 Osijek, Croatia; Faculty of Medicine, University J. J. Strossmayer Osijek, J. Huttlera 4, 31000 Osijek, Croatia.
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Nešković N, Drenjančević D, Kvolik S, Škiljić S, Budrovac D, Drenjančević IH. Predictive role of selected biomarkers in differentiating gram-positive from gram-negative sepsis in surgical patients: a retrospective study. Anaesthesiol Intensive Ther 2023; 55:319-325. [PMID: 38282497 PMCID: PMC10801538 DOI: 10.5114/ait.2023.134214] [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: 04/02/2023] [Accepted: 11/09/2023] [Indexed: 01/30/2024] Open
Abstract
INTRODUCTION Patients after major surgery are at high risk of developing sepsis, which is accompanied by elevated serum levels of C-reactive protein (CRP) and procalcitonin (PCT). This study aimed to examine the differences in serum biomarker levels concerning the causative agent of sepsis in surgical patients. MATERIAL AND METHODS A retrospective study was carried out in the surgical intensive care unit (ICU) and included 81 septic patients admitted from January 2019 to May 2022, who had positive blood cultures (BC). Serum levels of PCT, CRP, white blood cells (WBC) and platelet counts were recorded on the day of the positive BC and over the following 3 days. RESULTS Patients with gram(-) sepsis had significantly higher PCT levels, and lower platelet count compared to patients with gram(+) sepsis. High PCT and low platelets levels in all measurements were a significant predictor of gram(-) isolate with the highest predictive value on the third day after BC sampling, with AUROC 0.821 (95% CI: 0.692-0.950), P = 0.001, and AUROC 0.676 (95% CI: 0.541-0.811), P = 0.02, respectively. In multivariate logistic regression, platelets the day after BC sampling and PCT on the third day made a significant contribution in distinguishing gam(+) from gram(-) BC. Age and high serum CRP levels were significant predictors of poor outcomes. CONCLUSIONS PCT and platelets may be useful biomarkers for predicting the causative agent of sepsis in surgical patients.
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Affiliation(s)
- Nenad Nešković
- Department of Anaesthesiology, Resuscitation, and Intensive Care, Osijek University Hospital, Croatia
- Faculty of Medicine, University Josip Juraj Strossmayer Osijek, Croatia
| | - Domagoj Drenjančević
- Faculty of Medicine, University Josip Juraj Strossmayer Osijek, Croatia
- Department of Clinical Microbiology and Hospital Infections, Osijek University Hospital, Croatia
| | - Slavica Kvolik
- Department of Anaesthesiology, Resuscitation, and Intensive Care, Osijek University Hospital, Croatia
- Faculty of Medicine, University Josip Juraj Strossmayer Osijek, Croatia
| | - Sonja Škiljić
- Department of Anaesthesiology, Resuscitation, and Intensive Care, Osijek University Hospital, Croatia
- Faculty of Medicine, University Josip Juraj Strossmayer Osijek, Croatia
| | - Dino Budrovac
- Department of Anaesthesiology, Resuscitation, and Intensive Care, Osijek University Hospital, Croatia
- Faculty of Medicine, University Josip Juraj Strossmayer Osijek, Croatia
| | - Ivana Haršanji Drenjančević
- Department of Anaesthesiology, Resuscitation, and Intensive Care, Osijek University Hospital, Croatia
- Faculty of Medicine, University Josip Juraj Strossmayer Osijek, Croatia
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Meštrović T, Neuberg M, Sviben M, Ribić R, Drenjančević D, Škrlec I, Talapko J, Kozina G, Profozić Z. Corynebacterium glucuronolyticum in men with and without urethritis syndrome: An underrecognized pathogen or a bona fide commensal? Infect Dis Now 2022; 52:441-446. [PMID: 36030041 DOI: 10.1016/j.idnow.2022.08.002] [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: 05/02/2022] [Revised: 07/27/2022] [Accepted: 08/19/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND By analysing the largest collection of Corynebacterium glucuronolyticum (C. glucuronolyticum) isolates from a single centre thus far, we aimed to appraise a potential causal link between an infrequently isolated species and the urethritis syndrome in men. METHODS A total of 1055 Caucasian male individuals with or without urethritis syndrome were included in this single-centre case-control study. Group-wise comparisons were pursued by analysing sociodemographic, behavioural and microbiological specificities between the two groups. C. glucuronolyticum isolates from urethral specimens were identified using the analytical profile index biotyping system (API Coryne) and additionally confirmed by MALDI-TOF mass-spectrometry, with subsequent determination of their antimicrobial sensitivity profiles. Statistical significance was set at p < 0.05 (two-tailed). RESULTS C. glucuronolyticum was isolated in 5.08% of study participants with urethritis syndrome and 3.60% of those without it (p = 0.303). In the urethritis group, the species was more frequently found as a sole isolate (p = 0.041) and after prior infection with Chlamydia trachomatis (p = 0.025). The most frequent presentation of urethritis included a clear discharge in small or moderate amounts, without any pathognomonic findings. The resistance rates were 62.22% for clindamycin, 42.22% for tetracycline and 26.67% for ciprofloxacin. CONCLUSIONS Our study provides major insights on the relevance of urethral C. glucuronolyticum in non-gonococcal urethritis, with significant implications for further aetiological research and management approaches.
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Affiliation(s)
- T Meštrović
- Department of Health Metrics Sciences, University of Washington School of Medicine, Seattle, Washington, USA; University Centre Varaždin, University North, Varaždin, Croatia; Clinical Microbiology and Parasitology Unit, Dr. Zora Profozić Polyclinic, Zagreb, Croatia.
| | - M Neuberg
- University Centre Varaždin, University North, Varaždin, Croatia
| | - M Sviben
- Microbiology Service, Croatian National Institute of Public Health, Zagreb, Croatia; Medical Microbiology Department, School of Medicine, University of Zagreb, Zagreb, Croatia
| | - R Ribić
- University Centre Varaždin, University North, Varaždin, Croatia
| | - D Drenjančević
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; University Hospital Centre Osijek, Osijek, Croatia
| | - I Škrlec
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia
| | - J Talapko
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia
| | - G Kozina
- University Centre Varaždin, University North, Varaždin, Croatia
| | - Z Profozić
- Clinical Microbiology and Parasitology Unit, Dr. Zora Profozić Polyclinic, Zagreb, Croatia
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Meštrović T, Ljubin-Sternak S, Božičević I, Drenjančević D, Barać A, Kozina G, Neuberg M, Vraneš J. Human Papillomavirus (HPV) Prevalence, Temporal Dynamics and Association with Abnormal Cervical Cytology Findings in Women from Croatia: Is there a Compounding Effect of Low-Risk/High-Risk HPV Co-Infection? Clin Lab 2020; 66. [PMID: 33337847 DOI: 10.7754/clin.lab.2020.200406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Human papillomavirus (HPV) is a major risk factor for cervical dysplasia and invasive cervical cancer; therefore, regular screening by cervical smear cytology or HPV testing is recommended. We aimed to determine the overall and risk group-specific HPV prevalence, age distribution, and temporal trends and to appraise the correlation of HPV positivity with abnormal cervical cytological findings. METHODS This retrospective, single-center study involved a total of 751 women (aged 18 - 67) concurrently subjected to HPV DNA testing and cervical cytology evaluation over a 10-year period in Zagreb, Croatia. Digene HC2 HPV DNA test (Qiagen Corporation, USA) was employed in screening specimens for both low-risk and high-risk HPV risk groups. The cytology was reported using the Bethesda system and in accordance with uniform classification of uterine cervix cytological findings in Croatia "Zagreb 2002". Statistical significance was set at p < 0.05. RESULTS The overall HPV prevalence in our study population was 48.6%, and the 18 - 30 age group presented with the highest infection burden (p = 0.046). A decrease in low-risk and high-risk mono-positivity has been observed over the 10-year period; conversely, there was a significant increase in low-risk/high-risk co-positivity (p = 0.007). Low-risk/high-risk HPV co-infection resulted in a compounding effect which increased the occurrence of abnormal cells, HPV-associated changes and low grade squamous intraepithelial lesions (LSIL/cervical intraepithelial neoplasia grade I) in cervical cytology when compared to mono-infection with either low-risk or high-risk HPV. On the other hand, such effect has not been demonstrated for high grade squamous intraepithelial lesions (HSIL/ cervical intraepithelial neoplasia grades II and III). CONCLUSIONS The overall HPV prevalence in female outpatients was high, underscored with rising co-positivity rates. Such co-infection with both low-risk and high-risk HPV (predominantly seen in women younger than 30) can exhibit a compounding effect in the occurrence of cytological abnormalities and low grade squamous intra-epithelial lesions (LSIL), which has to be considered in future diagnostic and screening algorithms.
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Samardžija M, Drenjančević D, Miletić M, Slavulj B, Jukić I, Zibar L, Mihaljević S, Ferenac Kiš M, Samardžija M. THE IMPACT OF POSITIVE ANTI-HBC MARKER ON PERMANENT DEFERRAL OF VOLUNTARY BLOOD DONORS IN EASTERN CROATIA AND ESTIMATION OF OCCULT HEPATITIS B VIRUS INFECTION RATE. Acta Clin Croat 2020; 59:126-134. [PMID: 32724283 PMCID: PMC7382879 DOI: 10.20471/acc.2020.59.01.15] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Recently an increase has been reported in the number of HBV transmissions from anti-HBc positive blood donors that were repeatedly negative in HBsAg and nucleic acid testing using the most sensitive tests available. The aim of the study was to show the effect of anti-HBc antibody testing performed in 2006 on permanent deferral of voluntary blood donors (VBDs), and to estimate occult hepatitis B infection (OBI) rate in this population after the introduction of mandatory molecular testing in the 2013-2016 period. More than 30,000 blood donations collected during the 2005-2007 period and more than 14,000 VBDs having donated blood during the 2013-2016 period after the introduction of molecular testing from eastern Croatia were included in the study. Serologic testing was performed with HBsAg assay throughout the study period, and anti-HBc assay was only performed in 2006. As part of the confirmatory algorithm testing, all HBsAg positive and unclear results were tested with molecular tests. Anti-HBc prevalence among VBDs in 2006 was 1.5%, with a rate of 1:197, whereas HBsAg prevalence was stable from 2005 to 2007 (0.04%, 0.1% and 0.1%, respectively). The calculated OBI rate from 2013 to 2016 was 1:30,250. Ten of 161 (12.4%) VBDs had serologic anti-HBc-only pattern. Anti-HBc testing in 2006 resulted in statistically more deferrals of VBDs compared to 2005 and 2007, and to the rest of Republic of Croatia. The strategy of universal anti-HBc testing of VBDs in addition to the existing HBsAg and molecular screening could be an additional measure to prevent HBV transmission by blood and blood components.
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Affiliation(s)
| | - Domagoj Drenjančević
- 1Nord-Trøndelag Hospital Trust, Namsos Hospital, Department of Internal Medicine, Namsos, Norway; 2Osijek University Hospital Centre, Department of Transfusion Medicine, Osijek, Croatia; 3Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 4Croatian Institute of Transfusion Medicine, Zagreb, Croatia; 5Merkur University Hospital, Department of Internal Medicine, Zagreb, Croatia; 6Osijek University Hospital Centre, Department of Internal Medicine, Division of Gastroenterology and Hepatology, Osijek, Croatia
| | - Manuela Miletić
- 1Nord-Trøndelag Hospital Trust, Namsos Hospital, Department of Internal Medicine, Namsos, Norway; 2Osijek University Hospital Centre, Department of Transfusion Medicine, Osijek, Croatia; 3Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 4Croatian Institute of Transfusion Medicine, Zagreb, Croatia; 5Merkur University Hospital, Department of Internal Medicine, Zagreb, Croatia; 6Osijek University Hospital Centre, Department of Internal Medicine, Division of Gastroenterology and Hepatology, Osijek, Croatia
| | - Blaženka Slavulj
- 1Nord-Trøndelag Hospital Trust, Namsos Hospital, Department of Internal Medicine, Namsos, Norway; 2Osijek University Hospital Centre, Department of Transfusion Medicine, Osijek, Croatia; 3Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 4Croatian Institute of Transfusion Medicine, Zagreb, Croatia; 5Merkur University Hospital, Department of Internal Medicine, Zagreb, Croatia; 6Osijek University Hospital Centre, Department of Internal Medicine, Division of Gastroenterology and Hepatology, Osijek, Croatia
| | - Irena Jukić
- 1Nord-Trøndelag Hospital Trust, Namsos Hospital, Department of Internal Medicine, Namsos, Norway; 2Osijek University Hospital Centre, Department of Transfusion Medicine, Osijek, Croatia; 3Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 4Croatian Institute of Transfusion Medicine, Zagreb, Croatia; 5Merkur University Hospital, Department of Internal Medicine, Zagreb, Croatia; 6Osijek University Hospital Centre, Department of Internal Medicine, Division of Gastroenterology and Hepatology, Osijek, Croatia
| | - Lada Zibar
- 1Nord-Trøndelag Hospital Trust, Namsos Hospital, Department of Internal Medicine, Namsos, Norway; 2Osijek University Hospital Centre, Department of Transfusion Medicine, Osijek, Croatia; 3Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 4Croatian Institute of Transfusion Medicine, Zagreb, Croatia; 5Merkur University Hospital, Department of Internal Medicine, Zagreb, Croatia; 6Osijek University Hospital Centre, Department of Internal Medicine, Division of Gastroenterology and Hepatology, Osijek, Croatia
| | - Silvio Mihaljević
- 1Nord-Trøndelag Hospital Trust, Namsos Hospital, Department of Internal Medicine, Namsos, Norway; 2Osijek University Hospital Centre, Department of Transfusion Medicine, Osijek, Croatia; 3Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 4Croatian Institute of Transfusion Medicine, Zagreb, Croatia; 5Merkur University Hospital, Department of Internal Medicine, Zagreb, Croatia; 6Osijek University Hospital Centre, Department of Internal Medicine, Division of Gastroenterology and Hepatology, Osijek, Croatia
| | - Marina Ferenac Kiš
- 1Nord-Trøndelag Hospital Trust, Namsos Hospital, Department of Internal Medicine, Namsos, Norway; 2Osijek University Hospital Centre, Department of Transfusion Medicine, Osijek, Croatia; 3Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 4Croatian Institute of Transfusion Medicine, Zagreb, Croatia; 5Merkur University Hospital, Department of Internal Medicine, Zagreb, Croatia; 6Osijek University Hospital Centre, Department of Internal Medicine, Division of Gastroenterology and Hepatology, Osijek, Croatia
| | - Marina Samardžija
- 1Nord-Trøndelag Hospital Trust, Namsos Hospital, Department of Internal Medicine, Namsos, Norway; 2Osijek University Hospital Centre, Department of Transfusion Medicine, Osijek, Croatia; 3Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 4Croatian Institute of Transfusion Medicine, Zagreb, Croatia; 5Merkur University Hospital, Department of Internal Medicine, Zagreb, Croatia; 6Osijek University Hospital Centre, Department of Internal Medicine, Division of Gastroenterology and Hepatology, Osijek, Croatia
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Meštrović T, Wilson J, Ljubin-Sternak S, Sviben M, Bedenić B, Barać A, Neuberg M, Drenjančević D, Ribić R, Kozina G. A 'pathogenic needle' in a 'commensal haystack': Genetic virulence signatures of Corynebacterium glucuronolyticum that may drive its infectious propensity for the male urogenital system. Med Hypotheses 2019; 126:38-41. [PMID: 31010496 DOI: 10.1016/j.mehy.2019.03.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 03/09/2019] [Accepted: 03/21/2019] [Indexed: 11/24/2022]
Abstract
The predominance of the genus Corynebacterium in the healthy male urogenital system contributes to the resident microbiome of not only the distal urethra, but potentially the proximal urethra and urinary bladder as well. However, for certain species in this genus, pathogenic potential was described, and the salient representative is Corynebacterium glucuronolyticum (C. glucuronolyticum) implicated in cases of urethritis and prostatitis in men. Nonetheless, some still question whether C. glucuronolyticum can actually be considered pathogenic or rather just a commensal species fortuitously isolated in patients with urogenital symptoms and/or syndromes. Although pathogen/commensal dichotomy is not always clear-cut, we hypothesize that specific genetic markers may expose C. glucuronolyticum as a convincingly pathogenic Corynebacterium. More specifically, characteristic pathogenic gene constellation inherent to this species (most notably the presence of specific sortase/SpaA-type pili gene clusters, but also the augmentative role of type VII secretion system) may significantly facilitate host tissue adhesion, with subsequent suppression/evasion of the immune response and acquisition of vitally important nutrients. Consequently, these genetic markers differentiate C. glucuronolyticum from its commensal counterparts, and give this species a pathogenic facet, which can be even further influenced by the Allee effect. In this paper we also propose a specific methodological approach on how to analyze C. glucuronolyticum epithelial colonization capacity and explore inceptive host cell-pathogen interactions that manipulate host environment and immune responses. This entails moving from approaches based primarily on overall homology of primary sequences towards specific structure-function studies to precisely evaluate all stakeholders involved in pili assemblage, cell adhesion and the expression of other virulence traits. In the era of high precision medicine, the hypothesized roles of C. glucuronolyticum adhesion systems in both virulence and nutrient acquisition may also reveal promising targets for future drug developments.
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Affiliation(s)
- Tomislav Meštrović
- Clinical Microbiology and Parasitology Unit, Polyclinic "Dr. Zora Profozić", Zagreb, Croatia; University Centre Varaždin, University North, Varaždin, Croatia.
| | - Jonas Wilson
- Sint Maarten Medical Center, Cay Hill, Sint Maarten (Dutch Part)
| | - Sunčanica Ljubin-Sternak
- University of Zagreb School of Medicine, Zagreb, Croatia; Clinical Microbiology Department, Teaching Institute of Public Health "Dr Andrija Štampar", Zagreb, Croatia
| | - Mario Sviben
- University of Zagreb School of Medicine, Zagreb, Croatia; Microbiology Service, Croatian National Institute of Public Health, Zagreb, Croatia
| | - Branka Bedenić
- University of Zagreb School of Medicine, Zagreb, Croatia; Department of Clinical and Molecular Microbiology, University Hospital Centre Zagreb, Zagreb, Croatia
| | - Aleksandra Barać
- Clinic for Infectious and Tropical Diseases, Clinical Centre of Serbia, Belgrade, Serbia; Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | | | - Domagoj Drenjančević
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; University Hospital Centre, Osijek, Croatia
| | - Rosana Ribić
- University Centre Varaždin, University North, Varaždin, Croatia
| | - Goran Kozina
- University Centre Varaždin, University North, Varaždin, Croatia
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Tomić Paradžik M, Drenjančević D, Presečki-Stanko A, Kopić J, Talapko J, Zarfel G, Bedenić B. Hidden Carbapenem Resistance in OXA-48 and Extended-Spectrum β-Lactamase-Positive Escherichia coli. Microb Drug Resist 2019; 25:696-702. [PMID: 30614759 DOI: 10.1089/mdr.2018.0309] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The purpose of this study was to report the identification OXA-48 carbapenemase in seven extended-spectrum β-lactamase (ESBL)-positive Escherichia coli clinical isolates, fully susceptible to all carbapenems by disk diffusion and E-test methods, but with borderline minimal inhibitory concentration (MIC) values of ertapenem. This report points to the necessity for determination of carbapenem MICs in ESBL-positive E. coli isolates and additional phenotypic testing for carbapenemases in all isolates with borderline ertapenem MIC defined by EUCAST. The isolates showed a high level of resistance to expanded-spectrum cephalosporins because of the production of an additional ESBL belonging to CTX-M family. All isolates and their respective tranconjugants were found to possess L plasmid. Pulsed-field gel electrophoresis analysis revealed two clusters containing highly related isolates. The global spread of multidrug-resistant E. coli should be monitored closely because of the ability of isolates to rapidly obtain additional antibiotic resistance traits such as plasmid-mediated OXA-48 genes.
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Affiliation(s)
- Maja Tomić Paradžik
- 1 Department of Clinical Microbiology, Institute for Public Health Brod-Posavina County, Slavonski Brod, Croatia.,2 School of Medicine, University of Osijek, Osijek, Croatia
| | - Domagoj Drenjančević
- 2 School of Medicine, University of Osijek, Osijek, Croatia.,3 University Hospital Center Osijek, Osijek, Croatia
| | | | - Jasminka Kopić
- 2 School of Medicine, University of Osijek, Osijek, Croatia.,5 Department of Anesthesiology and Intensive Care, General Hospital "Dr Josip Benčević," Slavonski Brod, Croatia
| | - Jasminka Talapko
- 6 Faculty of Dental Medicine and Health, University of Osijek, Osijek, Croatia
| | - Gernot Zarfel
- 7 Institute of Hygiene, Microbiology and Environmental Medicine, Medical University of Graz, Graz, Austria
| | - Branka Bedenić
- 4 Department of Clinical and Molecular Microbiology, University Hospital Centre Zagreb, Zagreb, Croatia.,8 School of Medicine, University of Zagreb, Zagreb, Croatia
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Bistrović A, Krstulović L, Stolić I, Drenjančević D, Talapko J, Taylor MC, Kelly JM, Bajić M, Raić-Malić S. Synthesis, anti-bacterial and anti-protozoal activities of amidinobenzimidazole derivatives and their interactions with DNA and RNA. J Enzyme Inhib Med Chem 2018; 33:1323-1334. [PMID: 30165753 PMCID: PMC6127852 DOI: 10.1080/14756366.2018.1484733] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 05/18/2018] [Accepted: 05/31/2018] [Indexed: 02/09/2023] Open
Abstract
Amidinobenzimidazole derivatives connected to 1-aryl-substituted 1,2,3-triazole through phenoxymethylene linkers 7a-7e, 8a-8e, and 9a-9e were designed and synthesised with the aim of evaluating their anti-bacterial and anti-trypanosomal activities and DNA/RNA binding affinity. Results from anti-bacterial evaluations of antibiotic-resistant pathogenic bacteria revealed that both o-chlorophenyl-1,2,3-triazole and N-isopropylamidine moieties in 8c led to strong inhibitory activity against resistant Gram-positive bacteria, particularly the MRSA strain. Furthermore, the non-substituted amidine and phenyl ring in 7a induced a marked anti-bacterial effect, with potency against ESBL-producing Gram-negative E. coli better than those of the antibiotics ceftazidime and ciprofloxacin. UV-Vis and CD spectroscopy, as well as thermal denaturation assays, indicated that compounds 7a and 8c showed also binding affinities towards ctDNA. Anti-trypanosomal evaluations showed that the p-methoxyphenyl-1,2,3-triazole moiety in 7b and 9b enhanced inhibitory activity against T. brucei, with 8b being more potent than nifurtimox, and having minimal toxicity towards mammalian cells.
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Affiliation(s)
- Andrea Bistrović
- Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Zagreb, Croatia
| | - Luka Krstulović
- Department of Chemistry and Biochemistry, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - Ivana Stolić
- Department of Chemistry and Biochemistry, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - Domagoj Drenjančević
- Department of Transfusion Medicine, Osijek University Hospital, Osijek, Croatia
- Department of Microbiology and Parasitology, Faculty of Medicine, University of Osijek, Osijek, Croatia
| | - Jasminka Talapko
- Department of Microbiology and Parasitology, Faculty of Medicine, University of Osijek, Osijek, Croatia
| | - Martin C. Taylor
- Department of Pathogen Molecular Biology, London School of Hygiene and Tropical Medicine, London, UK
| | - John M. Kelly
- Department of Pathogen Molecular Biology, London School of Hygiene and Tropical Medicine, London, UK
| | - Miroslav Bajić
- Department of Chemistry and Biochemistry, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - Silvana Raić-Malić
- Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Zagreb, Croatia
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Haršanji Drenjančević I, Drenjančević D, Davidović-Cvetko E, Drenjančević I, Gulam D, Kvolik S. DOES THE ANESTHESIA TECHNIQUE AFFECT ARTERIAL PRESSURE AND REGIONAL CEREBRAL OXYGEN SATURATION DURING SHOULDER ARTHROSCOPY IN THE BEACH CHAIR POSITION? Acta Clin Croat 2018; 57:473-479. [PMID: 31168180 PMCID: PMC6536278 DOI: 10.20471/acc.2018.57.03.10] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
- This study aimed to investigate the impact of posture and anesthesia techniques on blood pressure changes, heart rate and regional cerebral oxygen saturation during shoulder arthroscopy in the beach chair position (BCP). Sixty patients were included in this prospective cohort study: 30 patients mechanically ventilated and subjected to general anesthesia (GA) and 30 patients subjected to interscalene block (ISB) without mechanical ventilation. Noninvasive blood pressure, heart rate (HR), peripheral blood oxygen saturation and regional oxygen saturation of the brain were measured in twelve predefined points during perioperative period. The GA group patients had significantly lower mean arterial pressure and heart rate values compared to patients in ISB group during BCP (p<0.001). There was a significant difference in regional cerebral saturation between the groups measured only in points of induction and emergence from anesthesia in favor of GA group when receiving 100% oxygen (p<0.001). Changes in the mean arterial pressure and regional cerebral oxygen saturation for both brain hemispheres correlated only at the 10th minute after setting up BCP in GA patients (right, p=0.004 and left, p=0.003). This correlation did not exist in the ISB group patients at any of the points measured. Cerebral desaturation events recorded in both groups were not statistically significantly different. Results of this study demonstrated that GA preserved regional cerebral oxygenation in a safe range during BCP despite changes in the arterial blood pressure and heart rate in comparison to ISB.
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Affiliation(s)
| | - Domagoj Drenjančević
- 1Department of Anesthesiology, Resuscitation and Intensive Medicine, Osijek University Hospital Centre and Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 2Department of Transfusion Medicine, Osijek University Hospital Centre and Department of Microbiology and Parasitology, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 3Lavoslav Ružička College of Applied Sciences of Vukovar, Vukovar, Croatia; 4Department of Physiology and Immunology, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 5Department of Anesthesiology, Resuscitation and Intensive Medicine, Split University Hospital Centre, Split, Croatia
| | - Erna Davidović-Cvetko
- 1Department of Anesthesiology, Resuscitation and Intensive Medicine, Osijek University Hospital Centre and Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 2Department of Transfusion Medicine, Osijek University Hospital Centre and Department of Microbiology and Parasitology, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 3Lavoslav Ružička College of Applied Sciences of Vukovar, Vukovar, Croatia; 4Department of Physiology and Immunology, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 5Department of Anesthesiology, Resuscitation and Intensive Medicine, Split University Hospital Centre, Split, Croatia
| | - Ines Drenjančević
- 1Department of Anesthesiology, Resuscitation and Intensive Medicine, Osijek University Hospital Centre and Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 2Department of Transfusion Medicine, Osijek University Hospital Centre and Department of Microbiology and Parasitology, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 3Lavoslav Ružička College of Applied Sciences of Vukovar, Vukovar, Croatia; 4Department of Physiology and Immunology, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 5Department of Anesthesiology, Resuscitation and Intensive Medicine, Split University Hospital Centre, Split, Croatia
| | - Danijela Gulam
- 1Department of Anesthesiology, Resuscitation and Intensive Medicine, Osijek University Hospital Centre and Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 2Department of Transfusion Medicine, Osijek University Hospital Centre and Department of Microbiology and Parasitology, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 3Lavoslav Ružička College of Applied Sciences of Vukovar, Vukovar, Croatia; 4Department of Physiology and Immunology, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 5Department of Anesthesiology, Resuscitation and Intensive Medicine, Split University Hospital Centre, Split, Croatia
| | - Slavica Kvolik
- 1Department of Anesthesiology, Resuscitation and Intensive Medicine, Osijek University Hospital Centre and Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 2Department of Transfusion Medicine, Osijek University Hospital Centre and Department of Microbiology and Parasitology, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 3Lavoslav Ružička College of Applied Sciences of Vukovar, Vukovar, Croatia; 4Department of Physiology and Immunology, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia; 5Department of Anesthesiology, Resuscitation and Intensive Medicine, Split University Hospital Centre, Split, Croatia
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Bedenić B, Slade M, Starčević LŽ, Sardelić S, Vranić-Ladavac M, Benčić A, Zujić Atalić V, Bogdan M, Bubonja-Šonje M, Tomić-Paradžik M, Tot T, Lukić-Grlić A, Drenjančević D, Varda-Brkić D, Bandić-Pavlović D, Mihaljević S, Zarfel G, Gužvinec M, Conzemius R, Barišić I, Tambić-Andraševic A. Epidemic spread of OXA-48 beta-lactamase in Croatia. J Med Microbiol 2018; 67:1031-1041. [PMID: 29927373 DOI: 10.1099/jmm.0.000777] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
PURPOSE A dramatic increase in OXA-48 β-lactamase was observed recently not only in large hospital centres, but also in smaller suburban hospital centres in geographic areas bordering Croatia. The aim of the study was to analyse the epidemiology, the mechanisms of antibiotic resistance and the routes of spread of OXA-48 carbapenemase in Croatia. METHODS Carbapenemase and other β-lactamase and fluoroquinolone resistance genes were detected by PCR and sequencing. Whole-genome sequencing (WGS) was performed on five representative isolates. The isolates were genotyped by PFGE. RESULTS Forty-eight isolates positive for OXA-48, collected from seven hospital centres in Croatia from May 2016 to May 2017, were analysed (40 Klebsiella pneumoniae, 5 Enterobacter cloacae, 2 Escherichia coli and one Citrobacter freundii). Thirty-three isolates were ESBL positive and harboured group 1 CTX-M 1 β-lactamases. In addition to the β-lactam resistance genes detected by PCR (blaSHV-1, blaOXA-48 and blaOXA-1), WGS of five representative isolates revealed the presence of genes encoding aminoglycoside resistance, aadA2 and aph3-Ia, fluoroquinolone resistance determinants aac(6)Ib-c, oqxA and oqxB, the sulfonamide resistance gene sul1, and fosA (fosfomycin resistance). IncL plasmid was found in all isolates. Two K. pneumoniae isolates belonged to ST16, two E. cloacae to ST66 and E. coli to ST354. K. pneumoniae isolates were allocated to five clusters by PFGE which occured in different hospitals, indicating epidemic spread. CONCLUSIONS The OXA-48-positive organisms found in this study showed wide variability in antibiotic susceptibility, β-lactamase content and PFGE banding patterns. This study revealed a switch from the predominance of VIM-1 in 2012-2013 to that of OXA-48 in the 2015 to 2017.
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Affiliation(s)
- Branka Bedenić
- 1School of Medicine, University of Zagreb, Croatia.,2University Hospital Center Zagreb, Croatia
| | - Mia Slade
- 3Croatian Institute of Transfusion Medicine (CITM), Croatia
| | | | | | | | - Ana Benčić
- 1School of Medicine, University of Zagreb, Croatia
| | - Vlasta Zujić Atalić
- 6Public Health Institute of Osijek-Baranja County, Osijek, Croatia.,7School of Medicine, University of Osijek, University Hospital Center Osijek, Croatia
| | - Maja Bogdan
- 6Public Health Institute of Osijek-Baranja County, Osijek, Croatia.,7School of Medicine, University of Osijek, University Hospital Center Osijek, Croatia
| | | | | | - Tatjana Tot
- 10Department for Microbiology, General Hospital Karlovac, Croatia
| | - Amarela Lukić-Grlić
- 1School of Medicine, University of Zagreb, Croatia.,11Children's Hospital Zagreb, Croatia
| | - Domagoj Drenjančević
- 7School of Medicine, University of Osijek, University Hospital Center Osijek, Croatia
| | | | - Daniela Bandić-Pavlović
- 1School of Medicine, University of Zagreb, Croatia.,2University Hospital Center Zagreb, Croatia
| | - Slobodan Mihaljević
- 1School of Medicine, University of Zagreb, Croatia.,2University Hospital Center Zagreb, Croatia
| | - Gernot Zarfel
- 12Institute for Microbiology, Hygiene and Environmental Medicine, Medical University of Graz, Austria
| | - Marija Gužvinec
- 13University Hospital for Infectious Diseases, Zagreb, Croatia
| | - Rick Conzemius
- 14AIT, Austrian Institute for Technology, Vienna, Austria
| | - Ivan Barišić
- 14AIT, Austrian Institute for Technology, Vienna, Austria
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Stipković Babić M, Ratković A, Jukić M, Glavaš-Obrovac L, Drenjančević D, Raić-Malić S, Gazivoda Kraljević T. Synthesis, Cytostatic and Antibacterial Evaluations of Novel 1,2,3-Triazolyl-tagged Pyrimidine and Furo[2,3-d]pyrimidine Derivatives. CROAT CHEM ACTA 2017. [DOI: 10.5562/cca3165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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