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AMODEO DAVIDE, LIMAJ SANDRO, DE PALMA ISA, NANTE NICOLA, CEVENINI GABRIELE, MESSINA GABRIELE. Can a UV-C box help the cinema industry by disinfecting video cameras? JOURNAL OF PREVENTIVE MEDICINE AND HYGIENE 2023; 64:E137-E144. [PMID: 37654857 PMCID: PMC10468181 DOI: 10.15167/2421-4248/jpmh2023.64.2.2848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 05/30/2023] [Indexed: 09/02/2023]
Abstract
Introduction UV-C has proven to be an effective virucide and microbicide, and its cost-effectiveness allowed it to spread as a disinfecting procedure in different environments. Methods The study aims to determine the microbicide activity on Staphylococcus aureus, Escherichia coli and SARS-CoV-2 of the UV-C Boxer by Cartoni S.p.A. Three separate experiments were performed to assess the effectiveness of the UV-C disinfection device on different materials, directly on surfaces of a video camera and on a specific carrier for SARS-CoV-2. Results In all three experiments, a significant abatement of bacterial and viral contamination was reached after 60 seconds on carriers and after 3 minutes on all examined surfaces of the video camera, with a higher reduction on glass carriers. Conclusions UV-C devices may be a valuable tool to implement in the working routine to achieve a higher level of safety in work environments.
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Affiliation(s)
- DAVIDE AMODEO
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - SANDRO LIMAJ
- Post Graduate School of Public Health, Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - ISA DE PALMA
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - NICOLA NANTE
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
- Post Graduate School of Public Health, Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - GABRIELE CEVENINI
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - GABRIELE MESSINA
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
- Post Graduate School of Public Health, Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
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Chen J, Zhou J, Peng Y, Xie Y, Xiao Y. Aptamers: A prospective tool for infectious diseases diagnosis. J Clin Lab Anal 2022; 36:e24725. [PMID: 36245423 PMCID: PMC9701868 DOI: 10.1002/jcla.24725] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 09/21/2022] [Accepted: 09/22/2022] [Indexed: 12/05/2022] Open
Abstract
It is well known that people's health is seriously threatened by various pathogens (such as Mycobacterium tuberculosis, Treponema pallidum, Novel coronavirus, HIV, Mucor, etc.), which leads to heavy socioeconomic burdens. Therefore, early and accurate pathogen diagnosis is essential for timely and effective therapies. Up to now, diagnosing human contagious diseases at molecule and nano levels is remarkably difficult owing to insufficient valid probes when it comes to determining the biological markers of pathogens. Aptamers are a set of high‐specificity and high‐sensitivity plastic oligonucleotides screened in vitro via the selective expansion of ligands by exponential enrichment (SELEX). With the advent of aptamer‐based technologies, their merits have aroused mounting academic interest. In recent years, as new detection and treatment tools, nucleic acid aptamers have been extensively utilized in the field of biomedicine, such as pathogen detection, new drug development, clinical diagnosis, nanotechnology, etc. However, the traditional SELEX method is cumbersome and has a long screening cycle, and it takes several months to screen out aptamers with high specificity. With the persistent development of SELEX‐based aptamer screening technologies, the application scenarios of aptamers have become more and more extensive. The present research briefly reviews the research progress of nucleic acid aptamers in the field of biomedicine, especially in the diagnosis of contagious diseases.
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Affiliation(s)
- Jiayi Chen
- Department of Clinical Laboratory, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Jiahuan Zhou
- Department of Clinical Laboratory, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Yunchi Peng
- Department of Clinical Laboratory, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Yafeng Xie
- Department of Clinical Laboratory, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Yongjian Xiao
- Department of Clinical Laboratory, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
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He D, Fu C, Ning M, Hu X, Li S, Chen Y. Biofilms possibly harbor occult SARS-CoV-2 may explain lung cavity, re-positive and long-term positive results. Front Cell Infect Microbiol 2022; 12:971933. [PMID: 36250053 PMCID: PMC9554432 DOI: 10.3389/fcimb.2022.971933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 09/14/2022] [Indexed: 01/08/2023] Open
Abstract
During the COVID-19 pandemic, there have been an increasing number of COVID-19 patients with cavitary or cystic lung lesions, re-positive or long-term positive nucleic acid tests, but the mechanism is still unclear. Lung cavities may appear at long time interval from initial onset of coronavirus infection, generally during the absorption phase of the disease. The main histopathological characteristic is diffuse alveolar damage and may have more severe symptoms after initial recovery from COVID-19 and an increased mortality rate. There are many possible etiologies of pulmonary cavities in COVID-19 patients and we hypothesize that occult SARS-CoV-2, in the form of biofilm, is harbored in the airway lacuna with other pathogenic microorganisms, which may be the cause of pulmonary cavities and repeated and long-term positive nucleic acid tests.
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Affiliation(s)
- Daqian He
- Department of Thoracic Surgery I, The Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital, Yunnan Cancer Center), Kunming, China
| | - Chaojiang Fu
- Emergency Department (Outpatient Chemotherapy Center), The Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital, Yunnan Cancer Center), Kunming, China
| | - Mingjie Ning
- Department of Thoracic Surgery I, The Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital, Yunnan Cancer Center), Kunming, China
| | - Xianglin Hu
- Department of Thoracic Surgery I, The Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital, Yunnan Cancer Center), Kunming, China
| | - Shanshan Li
- Department of Anesthesiology, The Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital, Yunnan Cancer Center), Kunming, China
- *Correspondence: Ying Chen, ; Shanshan Li,
| | - Ying Chen
- Department of Thoracic Surgery I, The Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital, Yunnan Cancer Center), Kunming, China
- *Correspondence: Ying Chen, ; Shanshan Li,
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Canciu A, Cernat A, Tertis M, Botarca S, Bordea MA, Wang J, Cristea C. Proof of Concept for the Detection with Custom Printed Electrodes of Enterobactin as a Marker of Escherichia coli. Int J Mol Sci 2022; 23:ijms23179884. [PMID: 36077283 PMCID: PMC9456371 DOI: 10.3390/ijms23179884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/20/2022] [Accepted: 08/25/2022] [Indexed: 11/16/2022] Open
Abstract
The rapid and decentralized detection of bacteria from biomedical, environmental, and food samples has the capacity to improve the conventional protocols and to change a predictable outcome. Identifying new markers and analysis methods represents an attractive strategy for the indirect but simpler and safer detection of pathogens that could replace existing methods. Enterobactin (Ent), a siderophore produced by Escherichia coli or other Gram-negative bacteria, was studied on different electrode materials to reveal its electrochemical fingerprint—very useful information towards the detection of the bacteria based on this analyte. The molecule was successfully identified in culture media samples and a future goal is the development of a rapid antibiogram. The presence of Ent was also assessed in wastewater and treated water samples collected from the municipal sewage treatment plant, groundwater, and tap water. Moreover, a custom configuration printed on a medical glove was employed to detect the target in the presence of another bacterial marker, namely pyocyanin (PyoC), that being a metabolite specific of another pathogen bacterium, namely Pseudomonas aeruginosa. Such new mobile and wearable platforms offer considerable promise for rapid low-cost on-site screening of bacterial contamination.
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Affiliation(s)
- Alexandra Canciu
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Haţieganu University of Medicine and Pharmacy, 4 Louis Pasteur Str., 400349 Cluj-Napoca, Romania
| | - Andreea Cernat
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Haţieganu University of Medicine and Pharmacy, 4 Louis Pasteur Str., 400349 Cluj-Napoca, Romania
| | - Mihaela Tertis
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Haţieganu University of Medicine and Pharmacy, 4 Louis Pasteur Str., 400349 Cluj-Napoca, Romania
| | - Silvia Botarca
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Haţieganu University of Medicine and Pharmacy, 4 Louis Pasteur Str., 400349 Cluj-Napoca, Romania
| | - Madalina Adriana Bordea
- Microbiology Department, Faculty of Medicine, Iuliu Haţieganu University of Medicine and Pharmacy, 4 Louis Pasteur Str., 400349 Cluj-Napoca, Romania
| | - Joseph Wang
- Department of Nanoengineering, University of California, La Jolla, San Diego, CA 92093, USA
| | - Cecilia Cristea
- Analytical Chemistry Department, Faculty of Pharmacy, Iuliu Haţieganu University of Medicine and Pharmacy, 4 Louis Pasteur Str., 400349 Cluj-Napoca, Romania
- Correspondence:
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Mandu M, Onose G. Hyperimmune yolk extract with Immunoglobulin Y basic active principle as a possible adjuvant treatment in patients who need/benefit from neurorehabilitation, with Clostridium difficile ( Clostridioides difficile) enterocolitis as intercurrent comorbidity - a systematic literature review. J Med Life 2022; 15:162-167. [PMID: 35419106 PMCID: PMC8999091 DOI: 10.25122/jml-2021-0301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 11/11/2021] [Indexed: 11/19/2022] Open
Abstract
The study aims to add a new and beneficial perspective using Immunoinstant G food supplement as an adjuvant treatment. It is essential to study the bibliographic resources in the field to identify the current stage of knowledge on this topic. For this purpose, we have prepared a systematic literature review, focusing on the possibilities of improving the treatment of Clostridium difficile (Clostridioides difficile) enterocolitis in patients who need/benefit from neurorehabilitation. The systematic literature review was prepared using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). We obtained a number of 6 articles that were considered in the elaboration of our systematic literature review. We identified that this field is insufficiently studied and needs additional clinical trials. Our study contributes to increasing this understanding based on the thorough theoretical and practical approach of this topic.
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Affiliation(s)
- Mihaela Mandu
- Department of Physical and Rehabilitation Medicine, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania,Neuromuscular Rehabilitation Clinic Division, Emergency Teaching Hospital Bagdasar-Arseni, Bucharest, Romania,* Corresponding Author: Mihaela Mandu, Department of Physical and Rehabilitation Medicine, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania; Neuromuscular Rehabilitation Clinic Division, Emergency Teaching Hospital Bagdasar-Arseni, Bucharest, Romania. E-mail:
| | - Gelu Onose
- Department of Physical and Rehabilitation Medicine, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania,Neuromuscular Rehabilitation Clinic Division, Emergency Teaching Hospital Bagdasar-Arseni, Bucharest, Romania
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Nakhjavani M, Shigdar S. Future of PD-1/PD-L1 axis modulation for the treatment of triple-negative breast cancer. Pharmacol Res 2021; 175:106019. [PMID: 34861397 DOI: 10.1016/j.phrs.2021.106019] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/24/2021] [Accepted: 11/29/2021] [Indexed: 02/07/2023]
Abstract
Triple-negative breast cancer (TNBC) has the worst prognosis among the subtypes of breast cancer, with no targeted therapy available. Immunotherapy targeting programmed cell death protein-1 (PD-1) and its ligand (PD-L1) has resulted in some promising outcomes in cancer patients. The common treatments are monoclonal antibodies (mAbs). Despite novel methodologies in developing mAbs, there are several drawbacks with these medications. Immunological reactions, expensive and time-consuming production and requiring refrigeration are some of the challenging characteristics of mAbs that are addressed with using aptamers. Aptamers are nucleotide-based structures with high selectivity and specificity for target. Their small size helps aptamers penetrate the tissue better. In this review, we have discussed the nature of PD-1/PD-L1 interaction and summarised the available mAbs and aptamers specific for these two targets. This review highlights the role of aptamers as a future pathway for PD-1/PD-L1 modulation.
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Affiliation(s)
- Maryam Nakhjavani
- School of Medicine, Deakin University, Geelong, VIC 3220, Australia; Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, VIC 3220, Australia.
| | - Sarah Shigdar
- School of Medicine, Deakin University, Geelong, VIC 3220, Australia; Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, VIC 3220, Australia
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Antimicrobial Effect of Plasma-Activated Tap Water on Staphylococcus aureus, Escherichia coli, and Candida albicans. WATER 2021. [DOI: 10.3390/w13111480] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In this study, the potential antimicrobial activity of plasma-activated tap water (PAW) was evaluated against Staphylococcus aureus, Escherichia coli, and Candida albicans. For this, PAW was prepared in a gliding arc plasma system using two treatment conditions: stagnant water and water stirring by a magnetic stirrer, called moving water. Subsequently, their oxidation-reduction potential (ORP), pH, electrical conductivity (σ), and total dissolved solids (TDS) were monitored in different areas of the sample divided according to the depth of the beaker. It was observed that PAW obtained in dynamic conditions showed a more uniform acidity among the evaluated areas with pH 3.53 and ORP of 215 mV. Finally, standardized suspensions of Staphylococcus aureus (ATCC 6538), Escherichia coli (ATCC 10799), and Candida albicans (SC 5314) were treated with PAW, and the reduction of viable cells determined the antimicrobial effect. Our results indicate that the tap water, activated by plasma treatment using gliding arc, is an excellent inactivation agent in the case of Staphylococcus aureus and Escherichia coli. On the other hand, no significant antimicrobial activity was achieved for Candida albicans.
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