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Karabulut H, Xu D, Ma Y, Tut TA, Ulag S, Pinar O, Kazan D, Guncu MM, Sahin A, Wei H, Chen J, Gunduz O. A new strategy for the treatment of middle ear infection using ciprofloxacin/amoxicillin-loaded ethyl cellulose/polyhydroxybutyrate nanofibers. Int J Biol Macromol 2024; 269:131794. [PMID: 38697434 DOI: 10.1016/j.ijbiomac.2024.131794] [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: 07/29/2023] [Revised: 03/23/2024] [Accepted: 04/10/2024] [Indexed: 05/05/2024]
Abstract
A middle ear infection occurs due to the presence of several microorganisms behind the eardrum (tympanic membrane) and is very challenging to treat due to its unique location and requires a well-designed treatment. If not treated properly, the infection can result in severe symptoms and unavoidable side effects. In this study, excellent biocompatible ethyl cellulose (EC) and biodegradable polyhydroxybutyrate (PHB) biopolymer were used to fabricate drug-loaded nanofiber scaffolds using an electrospinning technique to overcome antibiotic overdose and insufficient efficacy of drug release during treatment. PHB polymer was produced from Halomonas sp., and the purity of PHB was found to around be 90 %. Additionally, ciprofloxacin (CIP) and amoxicillin (AMX) are highly preferable since both drugs are highly effective against gram-negative and gram-positive bacteria to treat several infections. Obtained smooth nanofibers were between 116.24 and 171.82 nm in diameter and the addition of PHB polymer and antibiotics improved the morphology of the nanofiber scaffolds. Thermal properties of the nanofiber scaffolds were tested and the highest Tg temperature resulted at 229 °C. The mechanical properties of the scaffolds were tested, and the highest tensile strength resulted in 4.65 ± 6.33 MPa. Also, drug-loaded scaffolds were treated against the most common microorganisms that cause the infection, such as S.aureus, E.coli, and P.aeruginosa, and resulted in inhibition zones between 10 and 21 mm. MTT assay was performed by culturing human adipose-derived mesenchymal stem cells (hAD MSCs) on the scaffolds. The morphology of the hAD MSCs' attachment was tested with SEM analysis and hAD MSCs were able to attach, spread, and live on each scaffold even on the day of 7. The cumulative drug release kinetics of CIP and AMX from drug-loaded scaffolds were analysed in phosphate-buffered saline (pH: 7.4) within different time intervals of up to 14 days using a UV spectrophotometer. Furthermore, the drug release showed that the First-Order and Korsmeyer-Peppas models were the most suitable kinetic models. Animal testing was performed on SD rats, matrix and collagen deposition occurred on days 5 and 10, which were observed using Hematoxylin-eosin and Masson's trichrome staining. At the highest drug concentration, a better repair effect was observed. Results were promising and showed potential for novel treatment.
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Affiliation(s)
- Hatice Karabulut
- Department of Systems Science and Industrial Engineering, State University of New York at Binghamton, New York, USA; Center for Nanotechnology & Biomaterials Research, Marmara University, Istanbul, Turkey
| | - Dingli Xu
- Health Science Center, Ningbo University, Zhejiang, China
| | - Yuxi Ma
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, China; University of Chinese Academy of Sciences, Beijing, China
| | - Tufan Arslan Tut
- Center for Nanotechnology & Biomaterials Research, Marmara University, Istanbul, Turkey; Department of Metallurgy and Materials Engineering, Faculty of Technology, Marmara University, Istanbul, Turkey
| | - Songul Ulag
- Center for Nanotechnology & Biomaterials Research, Marmara University, Istanbul, Turkey; Department of Metallurgy and Materials Engineering, Faculty of Technology, Marmara University, Istanbul, Turkey
| | - Orkun Pinar
- Department of Separation Science, LUT School of Engineering Science, LUT University, Sammonkatu 12, 50130, Mikkeli, Finland
| | - Dilek Kazan
- Department of Bioengineering, Faculty of Engineering, Marmara University, Istanbul, Turkey; Bacpolyzyme Bioengineering LLC., Marmara University Technopark., Istanbul, Turkey
| | - Mehmet Mucahit Guncu
- Institute of Health Sciences, Department of Microbiology, Marmara University, Istanbul, Turkey
| | - Ali Sahin
- Department of Biochemistry, School of Medicine/ Genetic and Metabolic Diseases Research and Investigation Center, Marmara University, Istanbul, Turkey
| | - Hua Wei
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
| | - Jing Chen
- Institute of Medical Sciences, The Second Hospital & Shandong University Centre for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan 250033, China..
| | - Oguzhan Gunduz
- Center for Nanotechnology & Biomaterials Research, Marmara University, Istanbul, Turkey; Department of Metallurgy and Materials Engineering, Faculty of Technology, Marmara University, Istanbul, Turkey.
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Croitoru AM, Ayran M, Altan E, Karacelebi Y, Ulag S, Sahin A, Guncu MM, Aksu B, Gunduz O, Tihauan BM, Ficai D, Ficai A. Corrigendum to "Development of gallic acid-loaded ethylcellulose fibers as a potential wound dressing material" [Int. J. Biol. Macromol., 253 (2023), 1-11/126996]. Int J Biol Macromol 2023; 253:127526. [PMID: 37949726 DOI: 10.1016/j.ijbiomac.2023.127526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Affiliation(s)
- Alexa-Maria Croitoru
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, Gh. Polizu St. 1-7, 011061 Bucharest, Romania; National Centre for Micro- and Nanomaterials, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania; National Centre for Food Safety, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania
| | - Musa Ayran
- Faculty of Technology, Marmara University, Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Department of Metallurgical and Materials Engineering, Istanbul, Turkey
| | - Eray Altan
- Faculty of Technology, Marmara University, Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Department of Metallurgical and Materials Engineering, Istanbul, Turkey
| | - Yasin Karacelebi
- Faculty of Engineering, Marmara University, Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Department of Bioengineering, Istanbul, Turkey
| | - Songul Ulag
- Faculty of Technology, Marmara University, Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Department of Metallurgical and Materials Engineering, Istanbul, Turkey
| | - Ali Sahin
- Faculty of Medicine, Marmara University, Department of Biochemistry, Istanbul, Turkey
| | - Mehmet Mucahit Guncu
- Faculty of Medicine, Marmara University, Department of Medical Microbiology, Istanbul, Turkey
| | - Burak Aksu
- Faculty of Medicine, Marmara University, Department of Medical Microbiology, Istanbul, Turkey
| | - Oguzhan Gunduz
- Faculty of Technology, Marmara University, Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Department of Metallurgical and Materials Engineering, Istanbul, Turkey.
| | - Bianca-Maria Tihauan
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, Gh. Polizu St. 1-7, 011061 Bucharest, Romania; Research Institute of the University of Bucharest-ICUB, Spl. Independentei 91-95, 0500957 Bucharest, Romania; Research & Development for Advanced Biotechnologies and Medical Devices, SC Sanimed International Impex SRL, 087040 Calugareni, Romania
| | - Denisa Ficai
- National Centre for Micro- and Nanomaterials, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania; National Centre for Food Safety, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania
| | - Anton Ficai
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, Gh. Polizu St. 1-7, 011061 Bucharest, Romania; National Centre for Micro- and Nanomaterials, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania; National Centre for Food Safety, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania; Academy of Romanian Scientists, Ilfov St. 3, 050045 Bucharest, Romania.
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Croitoru AM, Ayran M, Altan E, Karacelebi Y, Ulag S, Sahin A, Guncu MM, Aksu B, Gunduz O, Tihăuan BM, Ficai D, Ficai A. Development of gallic acid-loaded ethylcellulose fibers as a potential wound dressing material. Int J Biol Macromol 2023; 253:126996. [PMID: 37729998 DOI: 10.1016/j.ijbiomac.2023.126996] [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: 10/21/2022] [Revised: 09/12/2023] [Accepted: 09/17/2023] [Indexed: 09/22/2023]
Abstract
In this study, novel fibers were designed based on ethylcellulose (EC), loaded with different concentrations of gallic acid (GA) using the electrospinning technique, in order to investigate the potential of these materials as wound dressings. The chemical structure and morphology, along with the antimicrobial and biocompatibility tests of the EC_GA fibers were investigated. To observe the chemical interactions between the components, fourier transform infrared spectroscopy (FTIR) was used. The morphological analyzes were performed using scanning electron microscope (SEM). The uniaxial tensile test machine was used to obtain mechanical performance of the fibers. MTT assay was applied to get the biocompatibility properties of the fibers and antimicrobial test was applied to obtain the antimicrobial activity of the fibers. Based on the obtained results, the highest viability value of 67.4 % was obtained for 10%EC_100GA on the third day of incubation, demonstrating that with the addition of a higher concentration of GA, the cell viability increases. The antimicrobial tests, evaluated against Staphylococcus (S.) aureus, Escherichia (E.) coli, Pseudomonas (Ps.) aeruginosa and Candida (C.) albicans, showed a >90 % microbial reduction capacity correlated with a logarithmic reduction ranging from 0.63 to 1, for 10%EC_100 GA. In vitro release tests of GA from the fibers showed that GA was totally released from 10%EC_100 GA fibers after 2880 min, demonstrating a controlled release profile. These findings demonstrated that EC_GA fibers may be suitable for application in biomedical fields such as wound dressing materials. However, further studies should be performed to increase the biocompatibility properties of the fibers.
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Affiliation(s)
- Alexa-Maria Croitoru
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, Gh. Polizu St. 1-7, 011061 Bucharest, Romania; National Centre for Micro- and Nanomaterials, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania; National Centre for Food Safety, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania.
| | - Musa Ayran
- Marmara University, Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Department of Metallurgical and Materials Engineering, Istanbul, Turkey
| | - Eray Altan
- Faculty of Technology, Marmara University, Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Department of Metallurgical and Materials Engineering, Istanbul, Turkey.
| | - Yasin Karacelebi
- Faculty of Engineering, Marmara University, Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Department of Bioengineering, Istanbul, Turkey.
| | - Songul Ulag
- Faculty of Engineering, Marmara University, Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Department of Bioengineering, Istanbul, Turkey
| | - Ali Sahin
- Faculty of Medicine, Marmara University, Department of Biochemistry, Istanbul, Turkey.
| | - Mehmet Mucahit Guncu
- Faculty of Medicine, Marmara University, Department of Medical Microbiology, Istanbul, Turkey
| | - Burak Aksu
- Faculty of Medicine, Marmara University, Department of Medical Microbiology, Istanbul, Turkey
| | - Oguzhan Gunduz
- Marmara University, Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Department of Metallurgical and Materials Engineering, Istanbul, Turkey.
| | - Bianca-Maria Tihăuan
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, Gh. Polizu St. 1-7, 011061 Bucharest, Romania; Research Institute of the University of Bucharest-ICUB, Spl. Independentei 91-95, 0500957 Bucharest, Romania; Research & Development for Advanced Biotechnologies and Medical Devices, SC Sanimed International Impex SRL, 087040 Calugareni, Romania
| | - Denisa Ficai
- National Centre for Micro- and Nanomaterials, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania; National Centre for Food Safety, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania
| | - Anton Ficai
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, Gh. Polizu St. 1-7, 011061 Bucharest, Romania; National Centre for Micro- and Nanomaterials, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania; National Centre for Food Safety, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania; Academy of Romanian Scientists, Ilfov St. 3, 050045 Bucharest, Romania.
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Puigmal AC, Ayran M, Ulag S, Altan E, Guncu MM, Aksu B, Durukan BK, Sasmazel HT, Perez RA, Koc E, O'Callaghan D, Gunduz O. Fucoidan-loaded electrospun Polyvinyl-alcohol/Chitosan nanofibers with enhanced antibacterial activity for skin tissue engineering. J Mech Behav Biomed Mater 2023; 148:106163. [PMID: 37832172 DOI: 10.1016/j.jmbbm.2023.106163] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 07/03/2023] [Revised: 10/02/2023] [Accepted: 10/06/2023] [Indexed: 10/15/2023]
Abstract
The polymeric nanofiber may interact and control certain regeneration processes at the molecular level to repair damaged tissues. This research focuses on the development of characterization and antibacterial capabilities of polyvinyl alcohol (PVA)/chitosan (CS) nanofibres containing fucoidan (FUC) for tissue engineering as a skin tissue substitute. A control group consisting of 13% PVA/(0.1)% CS nanofiber was prepared. To confer antibacterial properties to the nanofiber, 10, 20, and 30 mg of FUC were incorporated into this control group. The scanning electron microscope (SEM) proved the homogeneous and beadless structures of the nanofibers. The antibacterial activity of the 13% PVA/(0.1)% CS/(10, 20, 30) FUC was tested against the S.aureus and E.coli and the results showed that with FUC addition, the antibacterial activities of the nanofibers increased. The biocompatibility test was performed with a fibroblast cell line for 1, 3, and 7 days of incubation and the results demonstrated that FUC addition enhanced the bioactivity of the 13% PVA/(0.1)% CS nanofibers. In addition, the biocompatibility results showed that 13% PVA/(0.1)% CS/10 FUC had the highest viability value for all incubation periods compared to the others. In addition, the tensile test results showed that; the maximum tensile strength value was observed for 13% PVA/(0.1)% CS/10 FUC nanofibers.
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Affiliation(s)
- Arnau Cuesta Puigmal
- Bioengineering Institute of Technology (BIT), Universitat Internacional de Catalunya (UIC), Barcelona, 08017, Spain
| | - Musa Ayran
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Turkey; Institute of Pure and Applied Sciences, Marmara University, Department of Metallurgical and Materials Engineering, Istanbul, Turkey
| | - Songul Ulag
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Turkey; Department of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Istanbul, Turkey
| | - Eray Altan
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Turkey; Institute of Pure and Applied Sciences, Marmara University, Department of Metallurgical and Materials Engineering, Istanbul, Turkey
| | - Mehmet Mucahit Guncu
- Department of Medical Microbiology, Faculty of Medicine, Marmara University, Istanbul, Turkey
| | - Burak Aksu
- Department of Medical Microbiology, Faculty of Medicine, Marmara University, Istanbul, Turkey
| | - Barkan Kagan Durukan
- Department of Metallurgical and Materials Engineering, Atilim University, Ankara, Turkey
| | | | - Roman A Perez
- Bioengineering Institute of Technology (BIT), Universitat Internacional de Catalunya (UIC), Barcelona, 08017, Spain
| | - Erhan Koc
- Pharma-Assist Ltd, Unit 16, Carrigeen Business Park, Powerstown, Clonmel Co., Tipperary, Ireland
| | - Desmond O'Callaghan
- Pharma-Assist Ltd, Unit 16, Carrigeen Business Park, Powerstown, Clonmel Co., Tipperary, Ireland
| | - Oguzhan Gunduz
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Turkey; Department of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Istanbul, Turkey.
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Croitoru AM, Ayran M, Altan E, Karacelebi Y, Ulag S, Sahin A, Guncu MM, Aksu B, Gunduz O, Tihauan BM, Ficai D, Ficai A. Corrigendum to "Development of gallic acid-loaded ethylcellulose fibers as a potential wound dressing material" [Int. J. Biol. Macromol., Development of gallic acid-loaded ethylcellulose fibers as a potential wound dressing material, 253 (2023), 1-11/126996]. Int J Biol Macromol 2023; 251:127455. [PMID: 37865577 DOI: 10.1016/j.ijbiomac.2023.127455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2023]
Affiliation(s)
- Alexa-Maria Croitoru
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, Gh. Polizu St. 1-7, 011061 Bucharest, Romania; National Centre for Micro- and Nanomaterials, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania; National Centre for Food Safety, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania
| | - Musa Ayran
- Marmara University, Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Department of Metallurgical and Materials Engineering, Istanbul, Turkey
| | - Eray Altan
- Faculty of Technology, Marmara University, Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Department of Metallurgical and Materials Engineering, Istanbul, Turkey
| | - Yasin Karacelebi
- Faculty of Engineering, Marmara University, Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Department of Bioengineering, Istanbul, Turkey
| | - Songul Ulag
- Faculty of Technology, Marmara University, Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Department of Metallurgical and Materials Engineering, Istanbul, Turkey
| | - Ali Sahin
- Faculty of Medicine, Marmara University, Department of Biochemistry, Istanbul, Turkey
| | - Mehmet Mucahit Guncu
- Faculty of Medicine, Marmara University, Department of Medical Microbiology, Istanbul, Turkey
| | - Burak Aksu
- Faculty of Medicine, Marmara University, Department of Medical Microbiology, Istanbul, Turkey
| | - Oguzhan Gunduz
- Faculty of Technology, Marmara University, Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Department of Metallurgical and Materials Engineering, Istanbul, Turkey.
| | - Bianca-Maria Tihauan
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, Gh. Polizu St. 1-7, 011061 Bucharest, Romania; Research Institute of the University of Bucharest-ICUB, Spl. Independentei 91-95, 0500957 Bucharest, Romania; Research & Development for Advanced Biotechnologies and Medical Devices, SC Sanimed International Impex SRL, 087040 Calugareni, Romania
| | - Denisa Ficai
- National Centre for Micro- and Nanomaterials, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania; National Centre for Food Safety, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania
| | - Anton Ficai
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, Gh. Polizu St. 1-7, 011061 Bucharest, Romania; National Centre for Micro- and Nanomaterials, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania; National Centre for Food Safety, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania; Academy of Romanian Scientists, Ilfov St. 3, 050045 Bucharest, Romania.
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Alhan O, Saba R, Akalin EH, Ener B, Ture Yuce Z, Deveci B, Guncu MM, Kahveci HN, Yilmaz AF, Odabasi Z. Diagnostic Efficacy of Aspergillus Galactomannan Lateral Flow Assay in Patients with Hematological Malignancies: A Prospective Multicenter Study. Mycopathologia 2023; 188:643-653. [PMID: 37273172 PMCID: PMC10241129 DOI: 10.1007/s11046-023-00749-7] [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: 04/05/2023] [Accepted: 05/17/2023] [Indexed: 06/06/2023]
Abstract
BACKGROUND A rapid and reliable diagnostic test is needed to reduce mortality through early diagnosis of invasive aspergillosis (IA) in patients with hematological malignancies. OBJECTIVE To evaluate the efficacy of serum and bronchoalveolar lavage (BAL) Aspergillus galactomannan lateral flow assay (GM-LFA) in IA diagnosis and determine the correlation of GM-LFA with GM enzyme immunoassay (GM-EIA) in patients with hematological malignancies. METHODS In this prospective multicenter study, we used serum and BAL fluid samples from patients with hematological malignancies and suspected IA and performed GM-LFA and GM-EIA. According to the EORTC/MSGERC criteria, patients were grouped as proven (n = 6), probable (n = 22), possible IA (n = 55), or no IA (n = 88). The performance of serum GM-LFA at 0.5 optical density index (ODI) and area under the curve (AUC) were calculated. Spearman's correlation analysis and kappa statistics were performed to determine the agreement between the tests. RESULTS GM-LFA showed an AUC of 0.832 in proven/probable IA (sensitivity [SEN], specificity [SPE], negative predictive value [NPV], and diagnostic accuracy were 75%, 100%, 92.6%, and 93.9%, respectively, at a 0.5 ODI) versus that in no IA. A moderate positive correlation was noted between the GM-LFA and GM-EIA scores (p = 0.01). The observed agreement between the tests at 0.5 ODI was almost perfect (p < 0.001). After excluding patients who received mold-active antifungal prophylaxis or treatment, the SEN, SPE, NPV, and diagnostic accuracy for proven/probable IA were 76.2%, 100%, 93.3%, and 94.5%, respectively. CONCLUSIONS Serum GM-LFA demonstrated high discriminatory power and good diagnostic performance for IA in patients with hematological malignancies.
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Affiliation(s)
- Ozlem Alhan
- Department of Infectious Diseases and Clinical Microbiology, Marmara University Faculty of Medicine, Istanbul, Turkey.
- Department of Infectious Diseases and Clinical Microbiology, Kars Harakani State Hospital, Kars, Turkey.
| | - Rabin Saba
- Department of Infectious Diseases and Clinical Microbiology, Medstar Antalya Hospital, Antalya, Turkey
| | - Emin Halis Akalin
- Department of Infectious Diseases and Clinical Microbiology, Uludag University Faculty of Medicine, Bursa, Turkey
| | - Beyza Ener
- Department of Medical Microbiology, Uludag University Faculty of Medicine, Bursa, Turkey
| | - Zeynep Ture Yuce
- Department of Infectious Diseases and Clinical Microbiology, Erciyes University Faculty of Medicine, Kayseri, Turkey
| | - Burak Deveci
- Department of Hematology, Medstar Antalya Hospital, Antalya, Turkey
| | - Mehmet Mucahit Guncu
- Department of Medical Microbiology, Marmara University Institute of Health Sciences, Istanbul, Turkey
| | - Huseyin Nadir Kahveci
- Department of Infectious Diseases and Clinical Microbiology, Erciyes University Faculty of Medicine, Kayseri, Turkey
| | - Asu Fergun Yilmaz
- Department of Hematology, Marmara University Faculty of Medicine, Istanbul, Turkey
| | - Zekaver Odabasi
- Department of Infectious Diseases and Clinical Microbiology, Marmara University Faculty of Medicine, Istanbul, Turkey
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Yagci AK, Alci G, Guncu MM, Yilmaz OB, Tekin E, Cakir SE, Cebe B, Ozturk C, Sirikci O. Demographic Features and Laboratory Parameters Among Hospitalized Vaccinated Patients With COVID-19 in Istanbul, Turkey. Infect Dis Clin Pract 2023. [DOI: 10.1097/ipc.0000000000001251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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Izgis H, Ilhan E, Kalkandelen C, Celen E, Guncu MM, Turkoglu Sasmazel H, Gunduz O, Ficai D, Ficai A, Constantinescu G. Manufacturing of Zinc Oxide Nanoparticle (ZnO NP)-Loaded Polyvinyl Alcohol (PVA) Nanostructured Mats Using Ginger Extract for Tissue Engineering Applications. Nanomaterials (Basel) 2022; 12:3040. [PMID: 36080077 PMCID: PMC9457793 DOI: 10.3390/nano12173040] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/27/2022] [Accepted: 08/29/2022] [Indexed: 06/15/2023]
Abstract
In this research, as an alternative to chemical and physical methods, environmentally and cost-effective antimicrobial zinc oxide nanoparticles (ZnO NP) were produced by the green synthesis method. The current study focuses on the production of ZnO NP starting from adequate precursor and Zingiber officinale aqueous root extracts (ginger). The produced ZnO NP was loaded into electrospun nanofibers at different concentrations for various tissue engineering applications such as wound dressings. The produced ZnO NPs and ZnO NP-loaded nanofibers were examined by Scanning Electron Microscopy (SEM) for morphological assessments and Fourier-transform infrared spectrum (FT-IR) for chemical assessments. The disc diffusion method was used to test the antimicrobial activity of ZnO NP and ZnO NP-loaded nanofibers against three representatives strains, Escherichia coli (Gram-negative bacteria), Staphylococcus aureus (Gram-positive bacteria), and Candida albicans (fungi) microorganisms. The strength and stretching of the produced fibers were assessed using tensile tests. Since water absorption and weight loss behaviors are very important in tissue engineering applications, swelling and degradation analyses were applied to the produced nanofibers. Finally, the MTT test was applied to analyze biocompatibility. According to the findings, ZnO NP-loaded nanofibers were successfully synthesized using a green precipitation approach and can be employed in tissue engineering applications such as wound dressing.
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Affiliation(s)
- Hursima Izgis
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey
| | - Elif Ilhan
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey
- Department of Bioengineering, Faculty of Engineering, Marmara University, Istanbul 34722, Turkey
| | - Cevriye Kalkandelen
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey
- Department of Electronics and Automation, Vocational School of Technical Sciences, Istanbul University-Cerrahpasa, Istanbul 34500, Turkey
| | - Emrah Celen
- Department of Metallurgical and Materials Engineering, Atilim University, Ankara 06830, Turkey
| | - Mehmet Mucahit Guncu
- Department of Medical Microbiology, School of Medicine, Marmara University, Istanbul 34722, Turkey
| | - Hilal Turkoglu Sasmazel
- Department of Metallurgical and Materials Engineering, Atilim University, Ankara 06830, Turkey
| | - Oguzhan Gunduz
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey
- Department of Metallurgical and Materials Engineering, Faculty of Technology, Marmara University, Istanbul 34722, Turkey
| | - Denisa Ficai
- Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, Gh. Polizu 1-7, 011061 Bucharest, Romania
- National Center for Micro and Nanomaterials, UPB, Splaiul Independentei 313, 060042 Bucharest, Romania
| | - Anton Ficai
- National Center for Micro and Nanomaterials, UPB, Splaiul Independentei 313, 060042 Bucharest, Romania
- Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, Gh. Polizu 1-7, 011061 Bucharest, Romania
- Academy of Romanian Scientists, Ilfov Street 3, 050045 Bucharest, Romania
| | - Gabriel Constantinescu
- Department of Gastroenterology, Clinical Emergency Hospital of Bucharest, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania
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Karahasan Yagci A, Sarinoglu RC, Bilgin H, Yanılmaz Ö, Sayın E, Deniz G, Guncu MM, Doyuk Z, Barıs C, Kuzan BN, Aslan B, Korten V, Cimsit C. Relationship of the cycle threshold values of SARS-CoV-2 polymerase chain reaction and total severity score of computerized tomography in patients with COVID 19. Int J Infect Dis 2020; 101:160-166. [PMID: 32992013 PMCID: PMC7521909 DOI: 10.1016/j.ijid.2020.09.1449] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [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: 08/04/2020] [Revised: 09/21/2020] [Accepted: 09/22/2020] [Indexed: 01/08/2023] Open
Abstract
AIM Studies analyzing viral load in COVID-19 patients and any data that compare viral load with chest computerized tomography (CT) severity are limited. This study aimed to evaluate the severity of chest CT in reverse transcriptase polymerase chain reaction (RT-PCR)-positive patients and factors associated with it. METHODOLOGY SARS-CoV-2 RNA was extracted from nasopharyngeal swab samples by using Bio-speedy viral nucleic acid buffer. The RT-PCR tests were performed with primers and probes targeting the RdRp gene (Bioexen LTD, Turkey) and results were quantified as cycle threshold (Ct) values. Chest CT of SARS-CoV-2 RNA-positive patients (n = 730) in a period from 22 March to 20 May 2020 were evaluated. The total severity score (TSS) of chest CT ranged 0-20 and was calculated by summing up the degree of acute lung inflammation lesion involvement of each of the five lung lobes. RESULTS Of the 284 patients who were hospitalized, 27 (9.5%) of them died. Of 236 (32.3%) patients, there were no findings on CT and 216 (91.5%) of them were outpatients (median age 35 years). TSS was significantly higher in hospitalized patients; 5.3% had severe changes. Ct values were lower among outpatients, indicating higher viral load. An inverse relation between viral load and TSS was detected in both groups. CT severity was related to age, and older patients had higher TSS (p < 0.01). CONCLUSION Viral load was not a critical factor for hospitalization and mortality. Outpatients had considerable amounts of virus in their nasopharynx, which made them contagious to their contacts. Viral load is important in detecting early stages of COVID-19, to minimize potential spread, whereas chest CT can help identify cases requiring extensive medical care.
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Affiliation(s)
- Ayşegul Karahasan Yagci
- Medical Microbiology Marmara University, School of Medicine, Pendik Training and Research Hospital, İstanbul, Turkey
| | - Rabia Can Sarinoglu
- Medical Microbiology Marmara University, School of Medicine, Pendik Training and Research Hospital, İstanbul, Turkey
| | - Huseyin Bilgin
- Infectious Diseases and Clinical Microbiology, Marmara University, School of Medicine, Pendik Training and Research Hospital, İstanbul, Turkey
| | - Özgür Yanılmaz
- Medical Microbiology Marmara University, School of Medicine, Pendik Training and Research Hospital, İstanbul, Turkey
| | - Elvan Sayın
- Medical Microbiology Marmara University, School of Medicine, Pendik Training and Research Hospital, İstanbul, Turkey
| | - Guneser Deniz
- Medical Microbiology Marmara University, School of Medicine, Pendik Training and Research Hospital, İstanbul, Turkey
| | - Mehmet Mucahit Guncu
- Medical Microbiology Marmara University, School of Medicine, Pendik Training and Research Hospital, İstanbul, Turkey; Institute of Health Sciences, Marmara University, Maltepe Istanbul 34854 Turkey
| | - Zahide Doyuk
- Medical Microbiology Marmara University, School of Medicine, Pendik Training and Research Hospital, İstanbul, Turkey
| | - Can Barıs
- Medical Microbiology Marmara University, School of Medicine, Pendik Training and Research Hospital, İstanbul, Turkey
| | - Beyza Nur Kuzan
- Radiology, Marmara University, School of Medicine, Pendik Training and Research Hospital, İstanbul, Turkey
| | - Bülent Aslan
- Radiology, Marmara University, School of Medicine, Pendik Training and Research Hospital, İstanbul, Turkey
| | - Volkan Korten
- Infectious Diseases and Clinical Microbiology, Marmara University, School of Medicine, Pendik Training and Research Hospital, İstanbul, Turkey
| | - Cagatay Cimsit
- Radiology, Marmara University, School of Medicine, Pendik Training and Research Hospital, İstanbul, Turkey
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10
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Ilhan E, Cesur S, Guler E, Topal F, Albayrak D, Guncu MM, Cam ME, Taskin T, Sasmazel HT, Aksu B, Oktar FN, Gunduz O. Development of Satureja cuneifolia-loaded sodium alginate/polyethylene glycol scaffolds produced by 3D-printing technology as a diabetic wound dressing material. Int J Biol Macromol 2020; 161:1040-1054. [DOI: 10.1016/j.ijbiomac.2020.06.086] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 06/05/2020] [Accepted: 06/09/2020] [Indexed: 02/06/2023]
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