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Yang DH, Nah H, Lee D, Min SJ, Park S, An SH, Wang J, He H, Choi KS, Ko WK, Lee JS, Kwon IK, Lee SJ, Heo DN. A review on gold nanoparticles as an innovative therapeutic cue in bone tissue engineering: Prospects and future clinical applications. Mater Today Bio 2024; 26:101016. [PMID: 38516171 PMCID: PMC10952045 DOI: 10.1016/j.mtbio.2024.101016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 02/19/2024] [Accepted: 03/02/2024] [Indexed: 03/23/2024] Open
Abstract
Bone damage is a complex orthopedic problem primarily caused by trauma, cancer, or bacterial infection of bone tissue. Clinical care management for bone damage remains a significant clinical challenge and there is a growing need for more advanced bone therapy options. Nanotechnology has been widely explored in the field of orthopedic therapy for the treatment of a severe bone disease. Among nanomaterials, gold nanoparticles (GNPs) along with other biomaterials are emerging as a new paradigm for treatment with excellent potential for bone tissue engineering and regenerative medicine applications. In recent years, a great deal of research has focused on demonstrating the potential for GNPs to provide for enhancement of osteogenesis, reduction of osteoclastogenesis/osteomyelitis, and treatment of bone cancer. This review details the latest understandings in regards to GNPs based therapeutic systems, mechanisms, and the applications of GNPs against various bone disorders. The present review aims to summarize i) the mechanisms of GNPs in bone tissue remodeling, ii) preparation methods of GNPs, and iii) functionalization of GNPs and its decoration on biomaterials as a delivery vehicle in a specific bone tissue engineering for future clinical application.
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Affiliation(s)
- Dae Hyeok Yang
- Institute of Cell and Tissue Engineering, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea
| | - Haram Nah
- Department of Dentistry, Graduate School, Kyung Hee University, 26 Kyungheedae-Ro, Dongdaemun-Gu, Seoul, 02447, Republic of Korea
| | - Donghyun Lee
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), 80 Cheombok-ro, Dong-gu, Daegu, 41061, Republic of Korea
| | - Sung Jun Min
- Department of Dentistry, Graduate School, Kyung Hee University, 26 Kyungheedae-Ro, Dongdaemun-Gu, Seoul, 02447, Republic of Korea
| | - Seulki Park
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), 80 Cheombok-ro, Dong-gu, Daegu, 41061, Republic of Korea
| | - Sang-Hyun An
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), 80 Cheombok-ro, Dong-gu, Daegu, 41061, Republic of Korea
| | - Jianxin Wang
- Department of Pharmaceutics, School of Pharmacy, Fudan University & Key Laboratory of Smart Drug Delivery, Ministry of Education, Shanghai, 201203, China
| | - Huining He
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China
| | - Kyu-Sun Choi
- Department of Neurosurgery, College of Medicine, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Wan-Kyu Ko
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ, 08854, USA
| | - Jae Seo Lee
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Il Keun Kwon
- Department of Dental Materials, School of Dentistry, Kyung Hee University, 26 Kyungheedae-Ro, Dongdaemun-Gu, Seoul 02447, Republic of Korea
- Kyung Hee University Medical Science Research Institute, Kyung Hee University, 23 Kyungheedae-Ro, Dongdaemun-Gu, Seoul, 02447, Republic of Korea
| | - Sang Jin Lee
- Biofunctional Materials, Division of Applied Oral Sciences and Community Dental Care, Faculty of Dentistry, The University of Hong Kong, 34 Hospital Road, Sai Ying Pun, Hong Kong SAR, China
| | - Dong Nyoung Heo
- Department of Dental Materials, School of Dentistry, Kyung Hee University, 26 Kyungheedae-Ro, Dongdaemun-Gu, Seoul 02447, Republic of Korea
- Biofriends Inc, 26 Kyungheedae-Ro, Dongdaemun-Gu, Seoul, 02447, Republic of Korea
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Ida-Yonemochi H, Otsu K, Irié T, Ohazama A, Harada H, Ohshima H. Loss of Autophagy Disrupts Stemness of Ameloblast-Lineage Cells in Aging. J Dent Res 2024; 103:156-166. [PMID: 38058147 DOI: 10.1177/00220345231209931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2023] Open
Abstract
Autophagy is one of the intracellular degradation pathways and maintains cellular homeostasis, regulating the stress response, cell proliferation, and signal transduction. To elucidate the role of autophagy in the maintenance of dental epithelial stem cells and the subsequent enamel formation, we analyzed autophagy-deficient mice in epithelial cells (Atg7f/f;KRT14-Cre mice), focusing on the influence of aging and stress environments. We also performed in vitro cell and organ culture experiments with an autophagy inhibitor. In young Atg7f/f;KRT14-Cre mice, morphological change was not obvious in maxillary incisors, except for the remarkable cell death in the stratum intermedium of the transitional stage. However, under stress conditions of hyperglycemia, the incisor color changed to white in diabetes Atg7f/f;KRT14-Cre mice. Regarding dental epithelial stem cells, the shape of the apical bud region of the incisor became irregular with age, and odontoma was formed in aged Atg7f/f;KRT14-Cre mice. In addition, the shape of apical bud culture cells of Atg7f/f;KRT14-Cre mice became irregular and enlarged atypically, with epigenetic changes during culture, suggesting that autophagy deficiency may induce tumorigenesis in dental epithelial cells. The epigenetic change and upregulation of p21 expression were induced by autophagy inhibition in vivo and in vitro. These findings suggest that autophagy is important for the regulation of stem cell maintenance, proliferation, and differentiation of ameloblast-lineage cells, and an autophagy disorder may induce tumorigenesis in odontogenic epithelial cells.
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Affiliation(s)
- H Ida-Yonemochi
- Division of Anatomy and Cell Biology of the Hard Tissue, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School of Medical and Dental Sciences, Chuo-ku, Niigata, Japan
| | - K Otsu
- Division of Developmental Biology & Regenerative Medicine, Department of Anatomy, Iwate Medical University, Yahaba-cho, Shiwa-gun, Iwate, Japan
| | - T Irié
- Division of Anatomical and Cellular Pathology, Department of Pathology, Iwate Medical University, Yahaba-cho, Shiwa-gun, Iwate, Japan
| | - A Ohazama
- Division of Oral Anatomy, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Chuo-ku, Niigata, Japan
| | - H Harada
- Division of Developmental Biology & Regenerative Medicine, Department of Anatomy, Iwate Medical University, Yahaba-cho, Shiwa-gun, Iwate, Japan
| | - H Ohshima
- Division of Anatomy and Cell Biology of the Hard Tissue, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School of Medical and Dental Sciences, Chuo-ku, Niigata, Japan
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Makled AF, Ali SAM, Eldahdouh SS, Sleem AS, Eldahshan MM, Elsaadawy Y, Salman SS, Mohammed Elbrolosy A. Angiotensin-Converting Enzyme-2 ( ACE-2) with Interferon-Induced Transmembrane Protein-3 ( IFITM-3) Genetic Variants and Interleukin-6 as Severity and Risk Predictors among COVID-19 Egyptian Population. Int J Microbiol 2023; 2023:6384208. [PMID: 38155729 PMCID: PMC10754637 DOI: 10.1155/2023/6384208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 11/21/2023] [Accepted: 12/08/2023] [Indexed: 12/30/2023] Open
Abstract
Introduction The host genetic background is a crucial factor that underlies the interindividual variability of COVID-19 fatality and outcomes. Angiotensin-converting enzyme-2 (ACE-2) and interferon-induced transmembrane protein-3 (IFITM-3) have a key role in viral cell entrance and priming. The evoked immune response will also provide a predictive prognosis for COVID-19 infection. This study aimed to explore the association between ACE-2 and IFITM-3 genotypes and their corresponding allele frequencies with disease severity indices in the Egyptian COVID-19 population. The serum level of interleukin-6, as a biomarker of hyperinflammatory response, and cytokine storm, was correlated with disease progression, single nucleotide polymorphisms (SNPs) of the selected receptors, and treatment response. Methodology. We enrolled 900 COVID-19-confirmed cases and 100 healthy controls. Genomic DNA was extracted from 200 subjects (160 patients selected based on clinical and laboratory data and 40 healthy controls). The ACE-2 rs2285666 and IFITM-3 rs12252 SNPs were genotyped using the TaqMan probe allelic discrimination assay, and the serum IL-6 level was determined by ELISA. Logistic regression analysis was applied to analyze the association between ACE-2 and IFITM-3 genetic variants, IL-6 profile, and COVID-19 severity. Results The identified genotypes and their alleles were significantly correlated with COVID-19 clinical deterioration as follows: ACE2 rs2285666 CT + TT, odds ratio (95% confidence interval): 12.136 (2.784-52.896) and IFITM-3 rs12252 AG + GG: 17.276 (3.673-81.249), both p < 0.001. Compared to the controls, the heterozygous and mutant genotypes for both SNPs were considerable risk factors for increased susceptibility to COVID-19. IL-6 levels were significantly correlated with disease progression (p < 0.001). Conclusion ACE-2 and IFITM-3 genetic variants are potential predictors of COVID-19 severity, critical outcomes, and post-COVID-19 complications. Together, these SNPs and serum IL-6 levels explain a large proportion of the variability in the severity of COVID-19 infection and its consequences among Egyptian subjects.
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Affiliation(s)
- Amal F. Makled
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Menoufia University, Shebin al Kom, Egypt
| | - Sahar A. M. Ali
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Menoufia University, Shebin al Kom, Egypt
| | - S. S. Eldahdouh
- Department of Chest Diseases and Tuberculosis, Faculty of Medicine, Menoufia University, Shebin al Kom, Egypt
| | - Asmaa S. Sleem
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Menoufia University, Shebin al Kom, Egypt
| | - Maha M. Eldahshan
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Menoufia University, Shebin al Kom, Egypt
| | - Yara Elsaadawy
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Samar S. Salman
- Department of Clinical Pathology, Faculty of Medicine, Menoufia University, Shebin al Kom, Egypt
| | - Asmaa Mohammed Elbrolosy
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Menoufia University, Shebin al Kom, Egypt
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Taher Mohamed SA, Emin N. Effects of using collagen and aloe vera grafted fibroin scaffolds on osteogenic differentiation of rat bone marrow mesenchymal stem cells in SBF-enriched cell culture medium. Biomed Mater 2023; 19:015011. [PMID: 38055984 DOI: 10.1088/1748-605x/ad12e2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 12/06/2023] [Indexed: 12/08/2023]
Abstract
In the study, collagen and aloe vera were grafted onto silk fibroin with two different methods, and 3D-microporous scaffolds (1F5C4A1 and 2F5C4A1) were formed by lyophilization. Three osteogenic cultures were started by seeding rat bone marrow mesenchymal stem cells (MSCs) and pre-induced MSC (osteoblast (OB)) on biopolymeric scaffolds. The osteogenic medium was enriched with 10% (v/v) simulated body fluid (SBF) to promote mineralization and osteogenic differentiation in one of the MSC cultures and the OB culture. X-ray diffraction (XRD), scanning electron microscopy (SEM), scanning electron microscopy- energy dispersive spectrum (SEM-EDS) analyses on cellular samples and histochemical (alizarin red, safranin-O, alcian blue) and immunohistochemical (anti-collagen-1, anti-osteocalcin, anti-osteopontin) staining showed that bone-like mineralization was occurred by both chemically and cellular activity. In addition, pre-osteogenic induction of MSCs in 2D-cultured was found to promote osteogenesis more rapidly when started 3D-cultured. These results indicated that enrichment of the cell culture medium with SBF is sufficient forin vitromineralization rather than using high concentrations of SBF. The findings showed that OB cells on the 2F5C4A1 scaffold obtained the best osteogenic activity. Still, other culture media with 10% SBF content could be used for bone tissue engineering under osteogenic induction.
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Affiliation(s)
- Salma A Taher Mohamed
- Material Science and Engineering Department, Institute of Science and Technology, Kastamonu University, Kastamonu, Turkey
| | - Nuray Emin
- Material Science and Engineering Department, Institute of Science and Technology, Kastamonu University, Kastamonu, Turkey
- Biomedical Engineering Department, Engineering and Architecture Faculty, Kastamonu University, Kastamonu, Turkey
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Khorasani Esmaili P, Dabiri S, Movahedinia S, Shojaeepour S, Bagheri F, Ranjbar H, Shamsi Meymandi M, Mohebbi E, Farrokhnia M. Evaluation of Laboratory Findings of Patients with Coronavirus Disease 2019 in Kerman, Iran. IRANIAN JOURNAL OF PATHOLOGY 2023; 18:347-355. [PMID: 37942197 PMCID: PMC10628381 DOI: 10.30699/ijp.2023.1971332.3031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 05/30/2023] [Indexed: 11/10/2023]
Abstract
Background & Objective Since December 2019 in Wuhan, China there is a new form of pneumonia and after expansion in other countries, World Health Organization (WHO) called it Coronavirus Disease 2019 (COVID-19). Since the clinical laboratory findings have played an important role in the progression of the disease, this study aimed to evaluate the laboratory findings in COVID-19 patients (before vaccination). Methods In this case-control study that was conducted from February to August 2020; the laboratory test status in 101 positive COVID-19 patients was evaluated and compared with 101 healthy individuals. Results The results of our study showed that 21% of patients had low WBC, 24.75% low RBC, 37.62%, low Hb, 18.81% with low HCT, 29.7%, low Plt, 41.58% had High PT, 71.29% high CRP, 17.82% high urea, 11.88% high CR, 15.84% high LDH, 10.89% low sodium, 14.75% low potassium (K). The quantitative examination of blood factors showed that lymph%, mixed%, PLT, HCT, Hb, and RBC were higher in the control group than in the case group. While Neu%, WBC, PTT, CRP, UREA, LDH, K in the patient group were higher than in the control group. Conclusion According to the results of the study, it can be concluded that in the clinical treatment of COVID-19 patients, much attention should be paid to the laboratory indicators to identify and intervene early in critically ill patients.
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Affiliation(s)
- Parisa Khorasani Esmaili
- Department of Pathology, Pathology and Stem Cells Research Center, Afzali Pour Medical Faculty, Kerman University of Medical Sciences, Kerman, Iran
| | - Shahriar Dabiri
- Department of Pathology, Pathology and Stem Cells Research Center, Afzali Pour Medical Faculty, Kerman University of Medical Sciences, Kerman, Iran
| | - Sajjadeh Movahedinia
- Department of Pathology, Pathology and Stem Cells Research Center, Afzali Pour Medical Faculty, Kerman University of Medical Sciences, Kerman, Iran
| | - Saeedeh Shojaeepour
- Department of Basic Sciences, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Fatemeh Bagheri
- Legal Medicine Research Center, Legal Medicine Organization, Kerman, Iran
| | - Hanieh Ranjbar
- Department of Pathology, Pathology and Stem Cells Research Center, Afzali Pour Medical Faculty, Kerman University of Medical Sciences, Kerman, Iran
| | - Manzumeh Shamsi Meymandi
- Department of Pathology, Pathology and Stem Cells Research Center, Afzali Pour Medical Faculty, Kerman University of Medical Sciences, Kerman, Iran
| | - Elham Mohebbi
- Research Center for Modeling in Health, Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Mehrdad Farrokhnia
- Infectious and Internal Medicine Department, Afzalipour Hospital, Kerman University of Medical Science, Kerman, Iran
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Hassan M, Waqar SH, Shahzad F, Siraj MU. Adherence with standard guidelines among doctors involved in aerosol generating procedures to control COVID-19 transmission. Pak J Med Sci 2023; 39:1144-1148. [PMID: 37492281 PMCID: PMC10364303 DOI: 10.12669/pjms.39.4.3971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 12/13/2021] [Accepted: 03/28/2023] [Indexed: 07/27/2023] Open
Abstract
Objectives To review the strategies for controlling COVID-19 transmission among doctors involved in aerosol generating procedures. Methods A cross-sectional study was conducted in Pakistan Institute of Medical Sciences, Islamabad from September to November 2020, using a 21-itemed initially piloted self-administered questionnaire designed on Google forms. It was shared with doctors involved in Aerosol generating medical procedures (AGMPs) by using social media applications. After the data was collected, it was analyzed using SPSS version 21. Results A total of 136 doctors participated in the study that included 59 female and 77 male participants. Our 67 (49.3%) participants screened their patients for signs and symptoms of COVID-19 before a routine checkup. The most common disinfectant used for reusable medical equipment by 62 (45.6%) respondents was alcohol swab, 57 (41.9%) did not disinfect reusable equipment and 17 (12.5%) used Dettol water spray. Conclusion Majority of the doctors involved in AGMPS are not following the guidelines provided by international and national bodies. As such adherence to guidelines can help prevent COVID19 transmission in frontline doctors especially those involved in aerosol generating procedures.
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Affiliation(s)
- Madeeha Hassan
- Dr. Madeeha Hassan, MBBS. Postgraduate Resident, Department of Medicine, Pakistan Institute of Medical Sciences, Islamabad, Pakistan
| | - S H Waqar
- Dr. S H Waqar, MBBS, FCPS (Surgery), FICS, MCPS-HPE Professor and Head of Department of Surgery, Pakistan Institute of Medical Sciences, Islamabad, Pakistan
| | - Fatima Shahzad
- Fatima Shahzad, Undergraduate Medical Student, Al-Nafees Medical College, Islamabad, Pakistan
| | - Minhaj us Siraj
- Dr. Minhaj us Siraj, MBBS, DOMS, MPH. Joint Executive Director, Pakistan Institute of Medical Sciences, Islamabad, Pakistan
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Paños-Crespo A, Traboulsi-Garet B, Sánchez-Garcés MÁ, Gay-Escoda C. Disinfection of the air and surfaces in the dental clinic using hydroxyl radical (OH-) based technology: A systematic review. J Clin Exp Dent 2023; 15:e494-e504. [PMID: 37388429 PMCID: PMC10306383 DOI: 10.4317/jced.60461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 03/28/2023] [Indexed: 07/01/2023] Open
Abstract
Background A systematic review was carried out to compare the disinfectant capacity of hydroxyl radicals (OH-) versus other products commonly used for disinfecting the air and surfaces. Material and Methods A literature search was made of the Cochrane Library, PubMed (MEDLINE) and Scopus databases. "In vitro" studies evaluating disinfection methods applicable to several surfaces and room air were included in the search. The search was carried out in April 2022, with no restrictions in terms of language or publication date. Results Of the 308 articles identified from the initial search, 8 were included for the quantitative analysis. All publications corresponded to experimental "in vitro" studies. Seven of them evaluated biocidal action against bacteria, and only two assessed activity against viral loads. The generation of contaminants secondary to application of the disinfectants was only analyzed in one of the studies, with the conclusion that the production of peroxyl radicals (RO2) derived from the oxidation of volatile organic compounds (VOCs) is greater when chemical surface disinfectants are used versus air disinfection systems. Conclusions The disinfection capacities of the currently available methods are similar, and none of them are able to replace the use of additional physical protection measures. Key words:Disinfection methods, hydroxyl radical, environment, surfaces, dentistry.
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Affiliation(s)
- Anais Paños-Crespo
- DDS. Master in Oral Surgery and Buccofacial Implantology. Faculty of Medicine and Dentistry, University of Barcelona. Barcelona (Spain)
| | - Bassel Traboulsi-Garet
- DDS. Master in Oral Surgery and Buccofacial Implantology. Faculty of Medicine and Dentistry, University of Barcelona. Barcelona (Spain)
| | - Maria-Ángeles Sánchez-Garcés
- MD, DDS, MS, PhD, EBOS. Associate Professor of Oral Surgery. Faculty of Medicine and Dentistry, University of Barcelona. Researcher of the IDIBELL Institute. Barcelona (Spain)
| | - Cosme Gay-Escoda
- MD, DDS, MS, PhD, EBOS, OMFS. Chairman of Oral and Maxillofacial Surgery. Faculty of Medicine and Dentistry, University of Barcelona. Director of the Master in Oral Surgery and Buccofacial Implantology (EFHRE International University / FUCSO). Coordinator / Researcher of the IDIBELL Institute. Head of the Department of Oral Surgery, Buccofacial Implantology and Maxillofacial Surgery. Teknon Medical Center. Barcelona (Spain)
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Letafati A, Eyvazzadeh N, Gharehkhani A, Khorshidian A, Chalabiani S, Soufiani EK, Khakpoor N, Shamsodini B, Beheshti T, Bavili Olyaei RT, Soleimani A, Melyani F, Hossein GM. Comparison of AstraZeneca and sinopharm vaccines as boosters in protection against COVID-19 infection. Biologicals 2023; 82:101668. [PMID: 37004277 PMCID: PMC10008804 DOI: 10.1016/j.biologicals.2023.101668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 12/19/2022] [Accepted: 03/06/2023] [Indexed: 03/14/2023] Open
Abstract
BACKGROUND As the global number of confirmed cases rises past 640 million, vaccination remains the most effective measure in controlling COVID-19. Studies have shown that two doses of vaccination can significantly reduce hospitalization and mortality rates among patients, but the effectiveness of booster doses is also important. We aimed to evaluate the role played by the type of the 3rd dose of vaccination by comparing the safety and efficacy of two common vaccination histories differing only in the 3rd received dose. METHODS We conducted a cross-sectional study on patients with respiratory symptoms suspected of having SARS-CoV-2 infection using Real-time PCR. We also collected information on the age, gender, and type of vaccine received for the third dose. RESULTS Out of 346 cases with respiratory symptoms, 120 cases tested positive for SARS-CoV-2 and had received two doses of Sinopharm and a different booster dose of either AZD1222 (AstraZeneca) or BIBP (Sinopharm). Among these 120 patients, vaccination with AZD1222 as a booster dose resulted in fewer symptoms compared to those vaccinated with three doses of BIBP. CONCLUSIONS Our study demonstrates that booster doses can help reduce hospitalization and the severity of infection, and it appears that a combination of different vaccines may be effective against severe COVID-19 infection.
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Affiliation(s)
- Arash Letafati
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
| | - Nooshin Eyvazzadeh
- Department of Medical Bacteriology, Faculty of Medicine, Qazvin University of Medical Science, Qazvin, Iran
| | - Amirhossein Gharehkhani
- Department of Medical Laboratory Science, Faculty of Para Medicine, Islamic Azad University, Tehran Medical Branch, Tehran, Iran
| | - Ayeh Khorshidian
- Department of Biology, Faculty of Basic Sciences, Gonbad Kavous University, Gonbad Kavous, Iran
| | - Siavash Chalabiani
- Department of Microbiology, Faculty of Biological Sciences, Islamic Azad University of Qom, Qom, Iran
| | - Elnaz Khodadoust Soufiani
- Department of Medical Laboratory Science, Faculty of Para Medicine, Islamic Azad University, Tehran Medical Branch, Tehran, Iran
| | - Niloofar Khakpoor
- Department of Bacteriology and Virology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Benyamin Shamsodini
- Department of Microbiology, Faculty of Basic Sciences, Islamic Azad University of Shahrekord, Shahrekord, Iran
| | - Taranom Beheshti
- Department of Genetics, Faculty of Advanced Sciences and Technology, Islamic Azad University of Tehran, Tehran, Iran
| | - Raha Taheri Bavili Olyaei
- Department of Medical Laboratory Science, Faculty of Medical Sciences, Islamic Azad University, Tabriz Medical Branch, Tabriz, Iran
| | - Anahita Soleimani
- Department of Medical Laboratory Sciences, Faculty of Medical Sciences, Sarab University, Sarab, Iran
| | - Fatemeh Melyani
- Department of Medical Laboratory Sciences, Faculty of Para Medicine, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Ghazal Mashhadi Hossein
- Department of Microbiology, Faculty of Basic Sciences, Islamic Azad University of Arak, Arak, Iran
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Gudipaneni RK, Alruwaili MFO, Ganji KK, Karobari MI, Kulkarni S, Metta KK, Assiry AA, Israelsson N, Bawazir OA. Sociobehavioural Factors Associated With Child Oral Health During COVID-19. Int Dent J 2023; 73:280-287. [PMID: 36641343 PMCID: PMC9742219 DOI: 10.1016/j.identj.2022.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 12/06/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVES The aim of this study was to identify the sociobehavioural factors that influenced children's oral health during the COVID-19 pandemic. METHODS The online cross-sectional study was conducted in Al Jouf Province in the northern region of Saudi Arabia. A total of 960 parents of children aged 5 to 14 years were invited by multistage stratified random sampling. Descriptive, multinomial, and multiple logistic regression analyses were performed to estimate odds ratios and determine the relationship between independent and dependent variables. P < .05 was considered statistically significant. RESULTS Of the 960 participants, 693 (72.1%) reported that their child had 1 or more untreated dental decay. The children of uneducated parents were 1.6-fold more likely to have 1 or more untreated dental decay (adjusted odds ratio [AOR], 1.66; 95% CI, 0.74-3.73; P < .001). The children of unemployed parents were 4.3-fold more likely to have a financial burden for a child dental visit (AOR, 4.34; 95% CI, 2.73-6.89; P < .001). Parents from a rural area were 26.3-fold more likely to have spent a lag period of over 2 years since their child's last dental visit (AOR, 26.34; 95% CI, 7.48-92.79; P < .001). Nursery-level children were 5.4-fold more likely to need immediate care (AOR, 5.38; 95% CI, 3.01-9.60; P < .001). CONCLUSIONS The present study demonstrated a very high prevalence of 1 or more untreated dental decay in our cohort. Children of rural areas, uneducated, unemployed, widow/divorced, low- and middle-income parents and nursery school children were linked to poorly predictive outcomes of child oral health during the pandemic.
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Affiliation(s)
- Ravi Kumar Gudipaneni
- Department of Preventive Dentistry, Pediatric Dentistry Division, College of Dentistry, Jouf University, Sakaka, Al Jouf, Saudi Arabia.
| | | | - Kiran Kumar Ganji
- Department of Preventive Dentistry, Periodontics Division, College of Dentistry, Jouf University, Al Jouf, Sakaka, Saudi Arabia
| | - Mohmed Isaqali Karobari
- Center for Transdisciplinary Research (CFTR), Saveetha Dental College & Hospitals, Saveetha Institute of Medical and Technical Sciences University, Chennai, Tamil Nadu, India
| | - Sachin Kulkarni
- School of Dentistry and Oral Health, University of Adelaide, Adelaide, South Australia, Australia; Griffith University, Gold Coast, Queensland, Australia
| | - Kiran Kumar Metta
- Department of Conservative Dental Sciences, Ibn Sina National College For Medical Studies, Jeddah, Saudi Arabia
| | - Ali A Assiry
- Preventive Dental Science Department, Faculty of Dentistry, Najran University, Najran, Saudi Arabia
| | | | - Omar A Bawazir
- Department of Preventive Dentistry, Pediatric Dentistry Division, College of Dentistry, Jouf University, Sakaka, Al Jouf, Saudi Arabia; Department of Pediatric Dentistry and Orthodontics, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
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Weir EM, Exten C, Gerkin RC, Munger SD, Hayes JE. Transient loss and recovery of oral chemesthesis, taste and smell with COVID-19: a small case-control series. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.03.27.23287763. [PMID: 37034638 PMCID: PMC10081393 DOI: 10.1101/2023.03.27.23287763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
Anosmia is common with respiratory virus infections, but loss of taste or chemesthesis is rare. Reports of true taste loss with COVID-19 were viewed skeptically until confirmed by multiple studies. Nasal menthol thresholds are elevated in some with prior COVID-19 infections, but data on oral chemesthesis are lacking. Many patients recover quickly, but precise timing and synchrony of recovery are unclear. Here, we collected broad sensory measures over 28 days, recruiting adults (18-45 years) who were COVID-19 positive or recently exposed (close contacts per U.S. CDC criteria at the time of the study) in the first half of 2021. Participants received nose clips, red commercial jellybeans (Sour Cherry and Cinnamon), and scratch-n-sniff cards (ScentCheckPro). Among COVID-19 cases who entered the study on or before Day 10 of infection, Gaussian Process Regression showed odor identification and odor intensity (two distinct measures of function) each declined relative to controls (close contacts who never developed COVID-19), but effects were larger for intensity than identification. To assess changes during early onset, we identified four COVID-19 cases who enrolled on or prior to Day 1 of their illness â€" this allowed for visualization of baseline ratings, loss, and recovery of function over time. Four controls were matched for age, gender, and race. Variables included sourness and sweetness (Sour Cherry jellybeans), oral burn (Cinnamon jellybeans), mean orthonasal intensity of four odors (ScentCheckPro), and perceived nasal blockage. Data were plotted over 28 days, creating panel plots for the eight cases and controls. Controls exhibited stable ratings over time. By contrast, COVID-19 cases showed sharp deviations over time. No single pattern of taste loss or recovery was apparent, implying different taste qualities might recover at different rates. Oral burn was transiently reduced for some before recovering quickly, suggesting acute loss may be missed in data collected after acute illness ends. Changes in odor intensity or odor identification were not explained by nasal blockage. Collectively, intensive daily testing shows orthonasal smell, oral chemesthesis and taste were each altered by acute COVID-19 infection, and this disruption was dyssynchronous for different modalities, with variable loss and recovery rates across modalities and individuals.
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Affiliation(s)
- Elisabeth M. Weir
- Sensory Evaluation Center, The Pennsylvania State University, University Park PA 16802
- Department of Food Science, College of Agricultural Sciences, The Pennsylvania State University, University Park PA 16802
| | - Cara Exten
- Ross and Carol Nese College of Nursing, the Pennsylvania State University, University Park PA 16802
| | | | - Steven D. Munger
- Department of Pharmacology and Therapeutics, University of Florida College of Medicine, Gainesville FL, 32610
- Center for Smell and Taste, University of Florida, Gainesville FL, 32610
- Department of Otolaryngology, University of Florida College of Medicine, Gainesville FL, 32610
| | - John E. Hayes
- Sensory Evaluation Center, The Pennsylvania State University, University Park PA 16802
- Department of Food Science, College of Agricultural Sciences, The Pennsylvania State University, University Park PA 16802
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11
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Adeyemi TE, Adekoya MN, Aikins EA. Assessment of the willingness of Nigerian Orthodontists to offer face-to-face orthodontic services to patients infected with Covid-19. Afr Health Sci 2023; 23:51-58. [PMID: 37545907 PMCID: PMC10398480 DOI: 10.4314/ahs.v23i1.7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/08/2023] Open
Abstract
Introduction Efforts to contain the spread of the COVID-19 disease led to suspension of many services which caused orthodontists to resort to providing only emergency services. The aims of this study were to assess the willingness of Nigerian Orthodontists and Orthodontic resident doctors to treat patients infected with Covid-19 as well as to ascertain advice given regarding traumatic arch wires and aligners during the pandemic. Participants and study design This was a descriptive cross-sectional study. We included dentists who were Orthodontists and orthodontic resident doctors practicing in Nigeria. Data was collected via an online questionnaire (Google form) which was sent three times weekly throughout May/June, 2020 and analysed using SPSS version 23. Descriptive statistics were used to analyse the data. Results Forty-eight out of the 90 members of the WhatsApp group responded within the allotted time, giving a response rate of 53.3%. Out of a total of 48 respondents, 39 (81.3%) were unwilling to treat patients infected with COVID-19 during the pandemic. The major reason was fear of infection with the virus (12, 25.0%). Most of the respondents (41, 55.4%) suggested the use of wax for relief of trauma from arch wires. Conclusion Majority of Orthodontists and orthodontic residents practicing in Nigeria expressed unwillingness to treat patients infected with COVID-19. Aligner therapy was proffered as an alternative to bracket therapy.
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Affiliation(s)
- Tope Emmanuel Adeyemi
- Department of Child Dental Health, Faculty of Dentistry, Bayero University, Kano/ Aminu Kano Teaching Hospital, Kano
| | - Monica Ndudi Adekoya
- Department of Child Dental Health, University of Calabar/ University of Calabar Teaching Hospital
| | - Elfleda Angelina Aikins
- Department of Child Dental Health, College of Health Sciences, University of Port Harcourt/ University of Port Harcourt Teaching Hospital
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12
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Nadi A, Shiravi AA, Mohammadi Z, Aslani A, Zeinalian M. Thymus vulgaris, a natural pharmacy against COVID-19: A molecular review. J Herb Med 2023; 38:100635. [PMID: 36718131 PMCID: PMC9877322 DOI: 10.1016/j.hermed.2023.100635] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 06/28/2021] [Accepted: 01/25/2023] [Indexed: 01/28/2023]
Abstract
Introduction A worldwide pandemic infection by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the cause of a deadly disease called COVID-19. Interaction of the virus and the Angiotensin converting-enzyme 2 (ACE2) receptor leads to an inflammatory-induced tissue damage. Thymus vulgaris L. (TvL) is a plant with a long history in traditional medicine that has antimicrobial, antiseptic, and antiviral properties. Thymol and Carvacrol are two important biological components in Thyme that have anti-inflammatory, antioxidant, and immunomodulatory properties. This study is a molecular review on the potential effects of TvL and its active compounds on SARS-COV2 infection. Method This is a narrative review in which using PubMed, Scopus, ISI, Cochrane, ScienceDirect, Google scholar, and Arxiv preprint databases, the molecular mechanisms of therapeutic and protective effects of TvL and its active compounds have been discussed regarding the molecular pathogenesis in COVID-19. Results Thyme could suppress TNF-alpha, IL-6, and other inflammatory cytokines. It also enhances the anti-inflammatory cytokines like TGF-beta and IL-10. Thyme extract acts also as an inhibitor of cytokines IL-1-beta and IL-8, at both mRNA and protein levels. Thymol may also control the progression of neuro-inflammation toward neurological disease by reducing some factors. Thyme and its active ingredients, especially Thymol and Carvacrol, have also positive effects on the renin-angiotensin system (RAS) and intestinal microbiota. Conclusions Accordingly, TvL and its bioactive components may prevent COVID-19 complications and has a potential protective role against the deleterious consequences of the disease.
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Key Words
- ACE, angiotensin-converting enzyme
- ACE2, angiotensin-converting enzyme II
- ACEIs, ACE inhibitors
- ALI, acute lung injury
- ARBs, angiotensin receptor blockers
- ARDS, acute respiratory distress syndrome
- AT1R, angiotensin II receptor type 1
- AngII, angiotensin II
- BALF, brochalveolar lavage fluid
- COVID-19
- CVD, cardio vascular disease
- IL, Interleukin
- Infection
- RAS, renin-angiotensin system
- SARS-COV2
- TGF-β, Transforming growth factor beta
- TMPRSS2, transmembrane serine protease 2
- TNF, tumor necrosis factor
- Th, T helper
- Thyme
- Thymus vulgaris L
- Treatment
- TvL, Thymus vulgaris L.
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Affiliation(s)
- Ali Nadi
- School of Nutrition and Food Sciences, Isfahan University of Medical sciences, Isfahan, Iran
| | - Amir Abbas Shiravi
- Department of Genetics and Molecular biology, School of Medicine, Isfahan University of Medical sciences, Isfahan, Iran
| | - Zahra Mohammadi
- Department of Biology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Amin Aslani
- Department of Genetics and Molecular biology, School of Medicine, Isfahan University of Medical sciences, Isfahan, Iran
| | - Mehrdad Zeinalian
- Department of Genetics and Molecular biology, School of Medicine, Isfahan University of Medical sciences, Isfahan, Iran,Iranian Cancer Control and Prevention Center (MACSA), Isfahan, Iran,Corresponding author at: Department of Genetics and Molecular biology, School of Medicine, Isfahan University of Medical sciences, Isfahan, Iran
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13
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Lewy K, Faccin M, Somayaji Y, Pursell K, Porter BF, Vemulapalli TH, Bova J. A spontaneous compound odontoma in an adult Sprague Dawley rat (Rattus norvegicus). J Comp Pathol 2023; 201:53-56. [PMID: 36709728 DOI: 10.1016/j.jcpa.2022.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/07/2022] [Accepted: 10/29/2022] [Indexed: 01/28/2023]
Abstract
Reports of compound odontomas in rats are very rare. A 14-month-old adult male Sprague Dawley rat was found to have a hard mass associated with the caudal aspect of the left mandible. After 2 weeks of observation, the rat was euthanized due to the mass growing significantly in size and the rat losing >20% of its body weight. Grossly, the mass was well-circumscribed, 3.7 × 3 × 1.2 cm, hard and heterogeneously coloured white, tan and red. The mass was restricted to the mandibular bone and did not involve surrounding subcutaneous tissue. On cut surface, the mass was a similar colour and brittle. Histologically, there were numerous proto-teeth embedded in ossified stroma. Each proto-tooth had a central mesenchyme pulp surrounded by columnar odontoblasts and dentine matrix. The dentine was often bordered by enamel matrix, which was occasionally bounded by ameloblasts. These histological findings were consistent with a compound odontoma. This is the first report of a spontaneous compound odontoma in the caudal mandible of a rat.
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Affiliation(s)
- Keith Lewy
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M University, College Station, Texas, USA; Comparative Medicine Program, Texas A&M University, College Station, Texas, USA
| | - Mayane Faccin
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M University, College Station, Texas, USA
| | - Yogish Somayaji
- Institute for Regenerative Medicine, Department of Molecular and Cellular Medicine, College of Medicine, Texas A&M University, College Station, Texas, USA
| | - Kamryn Pursell
- College of Veterinary Medicine, Texas A&M University, College Station, Texas, USA
| | - Brian F Porter
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M University, College Station, Texas, USA
| | - Tracy H Vemulapalli
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M University, College Station, Texas, USA.
| | - Jonathan Bova
- Comparative Medicine Program, Texas A&M University, College Station, Texas, USA
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14
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Haznedaroglu E, Polat E. Dental Caries, Dental Erosion and Periodontal Disease in Children with Inflammatory Bowel Disease. Int J Med Sci 2023; 20:682-688. [PMID: 37082734 PMCID: PMC10110475 DOI: 10.7150/ijms.83075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 03/28/2023] [Indexed: 04/22/2023] Open
Abstract
Background: There is reportedly a higher prevalence of dental caries and periodontal disease in adults with inflammatory bowel disease (IBD) than in healthy adults. Similar data for children are lacking in the literature. We aimed to evaluate the prevalence of dental erosion, dental caries, and periodontal disease in children with IBD. Methods: This was a cross-sectional comparative study. Using the established criteria of the World Health Organization, oral investigations and detailed questionnaires that covered nutritional habits were completed by the same pediatric dentist for 32 patients with IBD, aged 11 to 18 years (15.53 ± 2.00), and 32 healthy controls. Results: The decayed, missing, and filled tooth index showed no significant difference between the groups (p = 0.072). The frequency of consumption of salad, lemon gum, candy and sweetened milk was significantly higher in the control group (p = 0.041, 0.012, 0.001, and 0.001, respectively) than in the IBD group. No dental erosion was observed in the IBD group. Oral mucosal history determined that 20/32 patients with IBD (62.5%) had at least one oral extraintestinal manifestation. Despite no significant differences in plaque scores between the two groups, the gingival evaluation showed a much higher mean value of gingival index scores in the IBD group than in the control group (p = 0.003). Conclusion: Although the number of patients included in the study is small, we can conclude that oral extraintestinal manifestations and periodontal disease are more prevalent in paediatric patients with IBD than in healthy populations.
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Affiliation(s)
- Eda Haznedaroglu
- Marmara University, Faculty of Dentistry, Department of Paediatric Dentistry, Istanbul, Turkey
- ✉ Corresponding author: Marmara University, Faculty of Dentistry, Department of Paediatric Dentistry, Recep Tayyip Erdogan Complex Health Campus, Basibuyuk yolu 9/3 34854, Basibuyuk/Maltepe/ Istanbul. Tel: 00902167775088; Fax: 00902167775001; E-mail:
| | - Esra Polat
- University of Health Sciences, Sancaktepe Sehit Prof. Dr. Ilhan Varank Training and Research Hospital, Department of Pediatric Gastroenterology, Istanbul, Turkey
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15
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Evaluation of the gut microbiome associated with COVID-19. INFORMATICS IN MEDICINE UNLOCKED 2023; 38:101239. [PMID: 37033411 PMCID: PMC10069162 DOI: 10.1016/j.imu.2023.101239] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 03/14/2023] [Accepted: 04/02/2023] [Indexed: 04/05/2023] Open
Abstract
Introduction In 2019, a new virus from the coronavirus family called SARS-CoV-2, infected populations throughout the world. Coronavirus disease 2019 (COVID-19), an illness induced by this virus, attacks vital organs in the body, such as the respiratory system and the gastrointestinal tract. Recent studies have confirmed changes in the gut microbiome caused by the COVID-19 disease. We examined the alteration of the gut microbiome in COVID-19 patients compared to healthy individuals. Materials and methods in this study, the 16s metagenomics dataset, publicly available in the Sequence Read Archive (SRA) database, was used for analysis (accession number PRJNA636824). The analysis processes were performed using the CLC Microbial Genomics Module 20.1.1 (Qiagen). At first, the sequence reads of samples were trimmed and classified into operational taxonomic units (OTUs) with 97% similarity and then assigned to the Greengenes reference database (v138). Differential abundance analysis was used to determine statistically significant differences in OTUs between COVID-19 and healthy groups. Next, biodiversity analyses including the alpha diversity (intragroup diversity) and beta diversity (intergroup diversity) using defined indexes were estimated. Then, the co-occurrence network at the species level was constructed using the Pearson correlation coefficient calculation between pairs of OTUs in R software and visualized using Cytoscape software. Ultimately, the hub OTUs at the species level were identified using the cytoHubba plugin of Cytoscape based on Maximal Clique Centrality (MCC) algorithm. Results The results of the metagenomic analysis revealed that the intestinal microbiome in healthy individuals has a higher biodiversity compared to COVID-19 patients. Indeed, healthy people also have a higher percentage of beneficial bacteria such as bifidobacteria adolescentis compared to COVID-19 patients; in contrast, COVID-19 patients have higher levels of opportunistic and pathogenic bacteria such as Streptococcus anginosus than healthy people. Also, by constructing a co-occurrence network at the species level, Bifidobacterium longum in the healthy group and Veillonella parvulain the COVID-19 group were found as hub species. Conclusion The results of this study shed light on the relationship between the gut microbiome and COVID-19. These results could be helpful for understanding the pathogenesis, clinical features, and treatment of COVID-9.
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16
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Mohammadi P, Varpaei HA, Seifi A, Zahak Miandoab S, Beiranvand S, Mobaraki S, Mohammadi M, Abdollahi A. Soluble ACE2 as a Risk or Prognostic Factor in COVID-19 Patients: A Cross-sectional Study. Med J Islam Repub Iran 2022; 36:135. [PMID: 36479537 PMCID: PMC9719580 DOI: 10.47176/mjiri.36.135] [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: 01/19/2022] [Indexed: 12/24/2022] Open
Abstract
Background: The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a novel severe acute respiratory syndrome coronavirus. The first known receptor for this virus in the human body is angiotensin-converting enzyme 2 (ACE2), the same receptor for the SARS virus. Methods: A total of 38 hospitalized adult (18 years) patients with laboratory or clinically confirmed coronavirus disease 2019 (COVID-19) were identified in the infectious disease ward of Tehran Imam Khomeini hospital complex in this single-center cross-sectional study. A blood sample was taken at the time of hospitalization and a second one was taken 48 hours later. Blood samples are kept frozen at -80 degrees Celsius. After the complete collection of samples, the ACE2 level of the samples was measured using a serum sACE2 detection ELISA kit. The data were analyzed using SPSS v26. P value of 0.05 was considered statistically significant. An analysis of covariance was performed to examine the mean differences in day 7 serum ACE2 concentration among the 2 groups after adjusting for the baseline serum ACE2 concentration. The 1-way multivariate analysis of variance was used to determine whether there were any differences between independent groups (mechanical ventilation yes/no) on serum ACE2 levels at 3 different times. Results: The mean age of patients was 64.13 ± 16.49 years, 21 patients (55.3%) were men, 16 patients (42%) were polymerase chain reaction test positive, and 15 patients (39.5%) died. A total of 35 individuals (92.1%) had chest computed tomography images that indicated lung involvement. A comparison of the 2 groups of patients who died and were discharged revealed that serum ACE2 at the first (p=0.033) and third (7th day) measurements were statistically different (p=0.026). Patients had a mean of serum ACE2. The results indicated that the day 7 serum ACE2 concentration did significantly differ between the 2 groups after controlling for the baseline serum ACE2 concentration (p=0.023). The model explained about 73.61% of the variance in the 7-day serum ACE2 concentration. Specifically, after adjusting for the baseline concentration, survived patients had the lowest level of serum ACE2 concentration (1 ± 0.65) on the 7th day compared with the deceased patient group (2.83 ± 1.12). Conclusion: Soluble ACE2 in the serum of COVID-19 patients who died, later on, was significantly higher than the discharged patients when the samples were taken seven days after admission. It is suggested that serum soluble ACE2 level could be used as a prognostic factor for COVID-19 patients' outcomes and also their need for mechanical ventilation.
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Affiliation(s)
- Parsa Mohammadi
- Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Arash Seifi
- Department of Infectious Diseases, Tehran University of Medical Sciences, Imam Khomeini Hospital Complex, Tehran, Iran
| | - Sepideh Zahak Miandoab
- Department of Infectious Diseases, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Saba Beiranvand
- Department of Nursing, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Sahar Mobaraki
- Department of Nursing, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Mostafa Mohammadi
- Tehran University of Medical Sciences, General ICU of Imam Khomeini Hospital Complex, Tehran, Iran, Corresponding author:Mostafa Mohammadi,
| | - Alireza Abdollahi
- Imam Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
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17
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Ziaeefar P, Bostanghadiri N, Yousefzadeh P, Gabbay J, Shahidi Bonjar AH, Ghazizadeh Ahsaie M, Centis R, Sabeti M, Sotgiu G, Migliori GB, Nasiri MJ. The efficacy of mouthwashes in reducing SARS-CoV-2 viral loads in human saliva: A systematic review. New Microbes New Infect 2022; 49:101064. [PMID: 36530834 PMCID: PMC9743687 DOI: 10.1016/j.nmni.2022.101064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022] Open
Abstract
This systematic review aimed to evaluate existing randomized controlled trials (RCT) and cohort studies on the efficacy of mouthwashes in reducing SARS-CoV-2 viral loads in human saliva. Searches with pertinent search terms were conducted in PubMed, MEDLINE, Scopus, and Web of Science databases for relevant records published up to Oct 15, 2022. Google Scholar and ProQuest were searched for grey literature. Manual searches were conducted as well for any pertinent articles. The protocol was prospectively registered at PROSPERO (CRD42022324894). Eligible studies were critically appraised for risk of bias and quality of evidence to assess the efficacy of mouthwash in reducing the SARS-CoV-2 viral load in human saliva. Eleven studies were included. The effect on viral load using various types of mouthwash was observed, including chlorhexidine (CHX), povidone-iodine (PI), cetylpyridinium chloride (CPC), hydrogen peroxide (HP), ß-cyclodextrin-citrox mouthwash (CDCM), and Hypochlorous acid (HCIO). Eight articles discussed CHX use. Five were found to be significant and three did not show any significant decrease in viral loads. Eight studies reviewed the use of PI, with five articles identifying a significant decrease in viral load, and three not showing a significant decrease in viral load. HP was reviewed in four studies, two studies identified significant viral load reductions, and two did not. CPC was reviewed in four studies, two of which identified significant viral load reductions, and two did not. CDCM was reviewed in one article which found a significant decrease in viral load reduction. Also, HCIO which was evaluated in one study indicated no significant difference in CT value. The current systematic review indicates that based on these eleven studies, mouthwashes are effective at reducing the SARS-CoV-2 viral load in human saliva. However, further studies should be performed on larger populations with different mouthwashes. The overall quality of evidence was high.
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Affiliation(s)
- Pardis Ziaeefar
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Narjes Bostanghadiri
- Department of Microbiology, School of Medicine, Iran University of Medical Science, Tehran, Iran
| | - Parsa Yousefzadeh
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Julian Gabbay
- School of Dentistry, University of California, San Francisco, USA
| | - Amir Hashem Shahidi Bonjar
- Clinician Scientist of Dental Materials and Restorative Dentistry, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mitra Ghazizadeh Ahsaie
- Department of Oral and Maxillofacial Radiology, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Rosella Centis
- Servizio di Epidemiologia Clinica delle Malattie Respiratorie, Istituti Clinici Scientifici Maugeri IRCCS, Tradate, Italy
| | - Mohammad Sabeti
- School of Dentistry, University of California, San Francisco, USA
| | - Giovanni Sotgiu
- Clinical Epidemiology and Medical Statistics Unit, Department of Medicine, Surgery and Pharmacy, University of Sassari, Italy
| | - Giovanni Battista Migliori
- Servizio di Epidemiologia Clinica delle Malattie Respiratorie, Istituti Clinici Scientifici Maugeri IRCCS, Tradate, Italy
| | - Mohammad Javad Nasiri
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Science, Tehran, Iran
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18
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Kumar H, Nishat R, Desai A. A review on oral manifestations of COVID-19 disease. J Family Med Prim Care 2022; 11:5879-5886. [PMID: 36618227 PMCID: PMC9810878 DOI: 10.4103/jfmpc.jfmpc_205_22] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 04/02/2022] [Accepted: 04/06/2022] [Indexed: 11/11/2022] Open
Abstract
COVID-19, a multi-system-affecting disease presents with an extensive clinical spectrum, ranging from no symptoms at all to fatal lung involvement. Several orofacial manifestations have also been reported, among which dysgeusia is one of the earliest reported symptoms. Several other manifestations of extensive variety have also been reported by various authors worldwide since the outbreak of the disease. This comprehensive review dispenses a synopsis of the orofacial manifestations of COVID-19 along with a working classification, the knowledge of which is of utmost importance to medical and dental professionals for early detection and prevention of transmission of the disease.
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Affiliation(s)
- Harish Kumar
- Department of Oral Pathology and Microbiology, Kalinga Institute of Dental Sciences, KIIT Deemed to be University, Bhubaneshwar, Odisha, India
| | - Roquaiya Nishat
- Department of Dentistry, Nalanda Medical College Hospital, Patna, Bihar, India
| | - Anupama Desai
- Department of Periodontology and Oral Implantology, A.M.E’S Dental College, Raichur, Karnataka, India
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19
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Errazquin R, Page A, Suñol A, Segrelles C, Carrasco E, Peral J, Garrido-Aranda A, Del Marro S, Ortiz J, Lorz C, Minguillon J, Surralles J, Belendez C, Alvarez M, Balmaña J, Bravo A, Ramirez A, Garcia-Escudero R. Development of a mouse model for spontaneous oral squamous cell carcinoma in Fanconi anemia. Oral Oncol 2022; 134:106184. [PMID: 36191479 DOI: 10.1016/j.oraloncology.2022.106184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 09/21/2022] [Accepted: 09/24/2022] [Indexed: 11/29/2022]
Abstract
Fanconi anemia (FA) patients frequently develop oral squamous cell carcinoma (OSCC). This cancer in FA patients is diagnosed within the first 3-4 decades of life, very often preceded by lesions that suffer a malignant transformation. In addition, they respond poorly to current treatments due to toxicity or multiple recurrences. Translational research on new chemopreventive agents and therapeutic strategies has been unsuccessful partly due to scarcity of disease models or failure to fully reproduce the disease. Here we report that Fanca gene knockout mice (Fanca-/-) frequently display pre-malignant lesions in the oral cavity. Moreover, when these animals were crossed with animals having conditional deletion of Trp53 gene in oral mucosa (K14cre;Trp53F2-10/F2-10), they spontaneously developed OSCC with high penetrance and a median latency of less than ten months. Tumors were well differentiated and expressed markers of squamous differentiation, such as keratins K5 and K10. In conclusion, Fanca and Trp53 genes cooperate to suppress oral cancer in mice, and Fanca-/-;K14cre;Trp53F2-10/F2-10 mice constitute the first animal model of spontaneous OSCC in FA.
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Affiliation(s)
- Ricardo Errazquin
- Research Institute Hospital 12 de Octubre (imas12), University Hospital "12 de Octubre", Av Córdoba s/n, 28041 Madrid, Spain
| | - Angustias Page
- Research Institute Hospital 12 de Octubre (imas12), University Hospital "12 de Octubre", Av Córdoba s/n, 28041 Madrid, Spain; Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain; Biomedical Oncology Unit, CIEMAT (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas), Avenida Complutense 40, 28040 Madrid, Spain
| | - Anna Suñol
- Hereditary Cancer Genetics Group and Medical Oncology Department, VHIO, Barcelona, Spain
| | - Carmen Segrelles
- Research Institute Hospital 12 de Octubre (imas12), University Hospital "12 de Octubre", Av Córdoba s/n, 28041 Madrid, Spain; Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain; Biomedical Oncology Unit, CIEMAT (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas), Avenida Complutense 40, 28040 Madrid, Spain
| | - Estela Carrasco
- Hereditary Cancer Genetics Group and Medical Oncology Department, VHIO, Barcelona, Spain
| | - Jorge Peral
- Biomedical Oncology Unit, CIEMAT (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas), Avenida Complutense 40, 28040 Madrid, Spain
| | | | - Sonia Del Marro
- Biomedical Oncology Unit, CIEMAT (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas), Avenida Complutense 40, 28040 Madrid, Spain
| | - Jessica Ortiz
- Biomedical Oncology Unit, CIEMAT (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas), Avenida Complutense 40, 28040 Madrid, Spain
| | - Corina Lorz
- Research Institute Hospital 12 de Octubre (imas12), University Hospital "12 de Octubre", Av Córdoba s/n, 28041 Madrid, Spain; Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain; Biomedical Oncology Unit, CIEMAT (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas), Avenida Complutense 40, 28040 Madrid, Spain
| | - Jordi Minguillon
- Join Research Unit on Genomic Medicine UAB-Sant Pau Biomedical Research Institute (IIB Sant Pau), Hospital de la Santa Creu i Sant Pau, 08041 Barcelona, Spain; Centro de Investigación Biomédica en Enfermedades Raras (CIBERER), 28029 Madrid, Spain
| | - Jordi Surralles
- Join Research Unit on Genomic Medicine UAB-Sant Pau Biomedical Research Institute (IIB Sant Pau), Hospital de la Santa Creu i Sant Pau, 08041 Barcelona, Spain; Centro de Investigación Biomédica en Enfermedades Raras (CIBERER), 28029 Madrid, Spain
| | - Cristina Belendez
- Centro de Investigación Biomédica en Enfermedades Raras (CIBERER), 28029 Madrid, Spain; Pediatric Hematology and Oncology, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Facultad de Medicina, Universidad Complutense de Madrid, Spain; Instituto Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Martina Alvarez
- Centro de Investigaciones Médico-Sanitarias (CIMES), Malaga, Spain
| | - Judith Balmaña
- Hereditary Cancer Genetics Group and Medical Oncology Department, VHIO, Barcelona, Spain
| | - Ana Bravo
- Department of Anatomy, Animal Production and Veterinary Clinical Sciences, Laboratory of Pathology Phenotyping of Genetically Engineered Mice, Faculty of Veterinary Medicine, University of Santiago de Compostela, 27002 Lugo, Spain
| | - Angel Ramirez
- Research Institute Hospital 12 de Octubre (imas12), University Hospital "12 de Octubre", Av Córdoba s/n, 28041 Madrid, Spain; Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain; Biomedical Oncology Unit, CIEMAT (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas), Avenida Complutense 40, 28040 Madrid, Spain
| | - Ramon Garcia-Escudero
- Research Institute Hospital 12 de Octubre (imas12), University Hospital "12 de Octubre", Av Córdoba s/n, 28041 Madrid, Spain; Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain; Biomedical Oncology Unit, CIEMAT (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas), Avenida Complutense 40, 28040 Madrid, Spain.
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20
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Hooshyar E, Hosseini S. Novel Corona Virus (COVID-19): Assessing Prevalence of SARS-CoV-2 and Infection. JOURNAL OF DENTISTRY (SHIRAZ, IRAN) 2022; 23:292-297. [PMID: 36506876 PMCID: PMC9719596 DOI: 10.30476/dentjods.2021.89631.1425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 02/22/2021] [Accepted: 10/12/2021] [Indexed: 06/17/2023]
Abstract
STATEMENT OF THE PROBLEM The World Health Organization (WHO) declared severe acute respiratory syndrome coronavirus 2 a pandemic on March 11, 2020. Corona virus disease 2019 (COVID-19) is commonly transmitted from human-to-human via close contacts and touching surfaces. Reports indicated that many medical staff got infected on working with infected individuals. Likewise, dentists are at a higher risk for the virus transmission due to close proximity to patients and the nature of dental procedures. Despite all of the protections and disinfections, there were some reports of infected dentists. PURPOSE In this study, we evaluated the prevalence of infected dentists and the rate of using protection protocols by them in Iran. MATERIALS AND METHOD This survey was a cross-sectional descriptive and web-based study in which a questionnaire designed and uploaded on Google forms. The link of the form was shared among dentists in Iran via some social media groups and personal messages. RESULTS A total of 945 dentists participated in this survey. A higher proportion of participants had their own private practice. About one third reported fatigue, malaise, or headaches since the COVID-19 got epidemic in Iran. Most of the respondents had provided emergency and elective dental treatments, used face shields, and surgical masks. The 26.3% of respondents were positive for COVID-19. CONCLUSION According to our analysis, about 26% of dentists had been infected with COVID -19 and most of them reported that they used the CDC's currently recommended infection prevention and control procedures in dental offices. However, the prevalence of infection was higher than prevalence of infection in the whole population of Iran (approximately 1%) and it showed that dentists were at high risk despite using infection control and personal protection equipment (PPE).
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Affiliation(s)
- Ehsan Hooshyar
- Dept. of Periodontology, Faculty of Dentistry, Urmia University of Medical Sciences, Urmia, Iran
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21
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Moslehi N, Jahromy MH, Ashrafi P, Vatani K, Nemati MAH, Moghadam PA, Rostamian F, Jahromi MH. Multi-organ system involvement in coronavirus disease 2019 (COVID-19): A mega review. J Family Med Prim Care 2022; 11:5014-5023. [PMID: 36505634 PMCID: PMC9731028 DOI: 10.4103/jfmpc.jfmpc_1570_21] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 12/16/2021] [Accepted: 05/17/2022] [Indexed: 12/15/2022] Open
Abstract
Since the pandemic of the coronavirus disease 2019 (COVID-19) infection, many people have been affected in different ways. The majority of infected people experience mild to moderate symptoms and recover without the need for hospitalization. However, in some affected people, it may lead to catastrophic disease. The severity of COVID-19 infection is widely influenced by co-morbidities, immune system functions, and extra-pulmonary organ injuries. Since the emergence of COVID-19, multi-organ involvement has been documented. In order to implement preventative and protective measures, full attention to potential organ injuries is required. Most existing articles and review papers are focused on a specific organ system, and their numbers are growing. In this review paper, attempts were made to collect review papers and articles published on seven organ system involvements in COVID-19 infection published till 15 July and highlight conclusions and managements of all affected organs. We tried to add to the medical knowledge on COVID-19, pointing out its multi-organ system impact. Finally, we tried to facilitate access to organized information and optimum conclusion by representing review tables for each organ system. Besides, this review article can clarify and magnify the empty research space easily for future investigations.
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Affiliation(s)
- Naghmeh Moslehi
- Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mahsa Hadipour Jahromy
- Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
- Herbal Pharmacology Research Center, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Pegah Ashrafi
- School of Pharmacy, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Kimia Vatani
- Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | | | - Parnian A. Moghadam
- Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Fatemeh Rostamian
- Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
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22
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Pouremamali A, Babaei A, Malekshahi SS, Abbasi A, Rafiee N. Understanding the pivotal roles of ACE2 in SARS-CoV-2 infection: from structure/function to therapeutic implication. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2022; 23:103. [PMID: 37521846 PMCID: PMC9206724 DOI: 10.1186/s43042-022-00314-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 06/12/2022] [Indexed: 01/08/2023] Open
Abstract
In December 2019, a novel respiratory tract infection, from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), was detected in China that rapidly spread around the world. This virus possesses spike (S) glycoproteins on the surface of mature virions, like other members of coronaviridae. The S glycoprotein is a crucial viral protein for binding, fusion, and entry into the target cells. Binding the receptor-binding domain (RBD) of S protein to angiotensin-converting enzyme 2 (ACE 2), a cell-surface receptor, mediates virus entry into cells; thus, understanding the basics of ACE2 and S protein, their interactions, and ACE2 targeting could be a potent priority for inhibition of virus infection. This review presents current knowledge of the SARS-CoV-2 basics and entry mechanism, structure and organ distribution of ACE2, and also its function in SARS-CoV-2 entry and pathogenesis. Furthermore, it highlights ACE2 targeting by recombinant ACE2 (rACE2), ACE2 activators, ACE inhibitor, and angiotensin II (Ang II) receptor blocker to control the SARS-CoV-2 infection.
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Affiliation(s)
- Amir Pouremamali
- Department of Virology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Abouzar Babaei
- Department of Virology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | | | - Ardeshir Abbasi
- Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Nastaran Rafiee
- Department of Virology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
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23
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Faruangsaeng T, Thaweesapphitak S, Khamwachirapitak C, Porntaveetus T, Shotelersuk V. Comparative transcriptome profiles of human dental pulp stem cells from maxillary and mandibular teeth. Sci Rep 2022; 12:8860. [PMID: 35614192 PMCID: PMC9133121 DOI: 10.1038/s41598-022-12867-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 05/11/2022] [Indexed: 11/09/2022] Open
Abstract
The molecular control of tooth development is different between the maxilla and mandible, contributing to different tooth shapes and locations; however, whether this difference occurs in human permanent teeth is unknown. The aim of this study was to investigate and compare the transcriptome profiles of permanent maxillary and mandibular posterior teeth. Ten participants who had a pair of opposing premolars or molars extracted were recruited. The RNA obtained from cultured dental pulp stem cells underwent RNA-sequencing and qRT-PCR. The transcriptome profiles of two opposing premolar pairs and two molar pairs demonstrated that the upper premolars, lower premolars, upper molars, and lower molars expressed the same top-ranked genes, comprising FN1, COL1A1, COL1A2, ACTB, and EEFIA1, which are involved in extracellular matrix organization, immune system, signal transduction, hemostasis, and vesicle-mediated transport. Comparative transcriptome analyses of each/combined tooth pairs demonstrated that PITX1 was the only gene with different expression levels between upper and lower posterior teeth. PITX1 exhibited a 64-fold and 116-fold higher expression level in lower teeth compared with their upper premolars and molars, respectively. These differences were confirmed by qRT-PCR. Taken together, this study, for the first time, reveals that PITX1 is expressed significantly higher in mandibular posterior teeth compared with maxillary posterior teeth. The difference is more evident in the molars compared with premolars and consistent with its expression pattern in mouse developing teeth. We demonstrate that differences in lower versus upper teeth gene expression during odontogenesis occur in permanent teeth and suggest that these differences should be considered in molecular studies of dental pulp stem cells. Our findings pave the way to develop a more precise treatment in regenerative dentistry such as gene-based therapies for dentin/pulp regeneration and regeneration of different tooth types.
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Affiliation(s)
- Thira Faruangsaeng
- International Graduate Program in Geriatric Dentistry and Special Patients Care, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.,Center of Excellence in Genomics and Precision Dentistry, Department of Physiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Sermporn Thaweesapphitak
- Center of Excellence in Genomics and Precision Dentistry, Department of Physiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Chompak Khamwachirapitak
- Center of Excellence in Genomics and Precision Dentistry, Department of Physiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Thantrira Porntaveetus
- International Graduate Program in Geriatric Dentistry and Special Patients Care, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand. .,Center of Excellence in Genomics and Precision Dentistry, Department of Physiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand.
| | - Vorasuk Shotelersuk
- Center of Excellence for Medical Genomics, Medical Genomics Cluster, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.,Excellence Center for Genomics and Precision Medicine, King Chulalongkorn Memorial Hospital, The Thai Red Cross Society, Bangkok, Thailand
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24
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Prasadh S, Gupta M, Wong R. In vitro cytotoxicity and osteogenic potential of quaternary Mg-2Zn-1Ca/X-Mn alloys for craniofacial reconstruction. Sci Rep 2022; 12:8259. [PMID: 35585104 PMCID: PMC9117210 DOI: 10.1038/s41598-022-12490-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 04/28/2022] [Indexed: 12/14/2022] Open
Abstract
Cytotoxicity of any biomedical material needs to be investigated for successful application within the human tissues. In this study, manganese in low amounts of 0.3, 0.5 and 0.7 (wt.%) was added to Mg2Zn1Ca alloy using Disintegrated Melt Deposition (DMD) followed by hot extrusion and the extruded alloys were tested for in vitro cytocompatibility using cell viability assays (CCK-8, LDH enzyme release assay, cell cytoskeleton and cell morphology) and in vitro osteogenic potential was evaluated using ALP, Alizarin Red and RT-PCR assays. Addition of manganese improved the cell viability and osteogenic potential in variable concentrations. The Mg2Zn1Ca /0.3 Mn and Mg2Zn1Ca /0.5 Mn alloys showed increased cell viability percentage compared to Mg2Zn1Ca alloys. The cytotoxicity percentage at the end of 24 h culture for Mg2Zn1Ca /0.3 Mn alloys showed lesser cytotoxicity percentage (~ 8%) when compared to the Mg2Zn1Ca /0.5 Mn (~ 13%) and Mg2Zn1Ca /0.7 Mn (~ 16%) samples. All the alloys showed good initial cell attachment, osteogenic potential and cell spreading. The results of this study validates great potential of Mg2Zn1Ca alloys with manganese addition and exhibited great potential for to be used as temporary implant materials in craniofacial reconstruction.
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Affiliation(s)
- Somasundaram Prasadh
- Faculty of Dentistry, National University of Singapore, 9 Lower Kent Ridge Road, Singapore, 119083, Singapore
| | - Manoj Gupta
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, 117576, Singapore
| | - Raymond Wong
- Faculty of Dentistry, National University of Singapore, 9 Lower Kent Ridge Road, Singapore, 119083, Singapore.
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25
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Changes in smell and taste perception related to COVID-19 infection: a case-control study. Sci Rep 2022; 12:8192. [PMID: 35581235 PMCID: PMC9112641 DOI: 10.1038/s41598-022-11864-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 04/22/2022] [Indexed: 01/05/2023] Open
Abstract
The main aim of the present study was to psychophysically evaluate smell and taste functions in hospitalized COVID-19 patients and to compare those results with a group of healthy subjects. Another aim of the study was to assess the relationship of changes in patients’ smell and taste functions with a number of clinical parameters, symptoms, and other physiological signs as well as with severity of disease. Olfactory and gustatory functions were tested in 61 hospitalized patients positive for SARS-CoV-2 infection and in a control group of 54 healthy individuals. Overall, we found a significant impairment of olfactory and gustatory functions in COVID-19 patients compared with the control group. Indeed, about 45% of patients self-reported complaints about or loss of either olfactory or gustatory functions. These results were confirmed by psychophysical testing, which showed a significantly reduced performance in terms of intensity perception and identification ability for both taste and smell functions in COVID-19 patients. Furthermore, gustatory and olfactory impairments tended to be more evident in male patients suffering from more severe respiratory failure (i.e., pneumonia with need of respiratory support need during hospitalization).
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26
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Lommi S, Manzoor M, Engberg E, Agrawal N, Lakka TA, Leinonen J, Kolho KL, Viljakainen H. The Composition and Functional Capacities of Saliva Microbiota Differ Between Children With Low and High Sweet Treat Consumption. Front Nutr 2022; 9:864687. [PMID: 35558746 PMCID: PMC9085455 DOI: 10.3389/fnut.2022.864687] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 03/04/2022] [Indexed: 01/17/2023] Open
Abstract
Excess sugar consumption—common in youth—is associated with poor health. Evidence on the relationship between sugar consumption and the oral microbiome, however, remains scarce and inconclusive. We explored whether the diversity, composition, and functional capacities of saliva microbiota differ based on the consumption of select sugary foods and drinks (“sweet treats”). Using 16S rRNA gene sequencing, we characterized saliva microbiota from 11 to 13-year-old children who participated in the Finnish Health in Teens (Fin-HIT) cohort study. The sample comprised children in the lowest (n = 227) and highest (n = 226) tertiles of sweet treat consumption. We compared differences in the alpha diversity (Shannon, inverse Simpson, and Chao1 indices), beta diversity (principal coordinates analysis based on Bray–Curtis dissimilarity), and abundance (differentially abundant operational taxonomic units (OTUs) at the genus level) between these low and high consumption groups. We performed PICRUSt2 to predict the metabolic pathways of microbial communities. No differences emerged in the alpha diversity between low and high sweet treat consumption, whereas the beta diversity differed between groups (p = 0.001). The abundance of several genera such as Streptococcus, Prevotella, Veillonella, and Selenomonas was higher in the high consumption group compared with the low consumption group following false discovery rate correction (p < 0.05). Children with high sweet treat consumption exhibited higher proportions of nitrate reduction IV and gondoate biosynthesis pathways compared with the low consumption group (p < 0.05). To conclude, sweet treat consumption shapes saliva microbiota. Children who consume a high level of sweet treats exhibited different compositions and metabolic pathways compared with children who consume low levels of sweet treats. Our findings reveal novel insights into the relationship between sugary diets and oral microbiota.
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Affiliation(s)
- Sohvi Lommi
- Department of Public Health, University of Helsinki, Helsinki, Finland.,Folkhälsan Research Center, Helsinki, Finland
| | - Muhammed Manzoor
- Department of Oral and Maxillofacial Diseases, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Elina Engberg
- Folkhälsan Research Center, Helsinki, Finland.,Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Nitin Agrawal
- Folkhälsan Research Center, Helsinki, Finland.,Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Timo A Lakka
- Institute of Biomedicine, School of Medicine, University of Eastern Finland, Kuopio, Finland.,Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, Kuopio, Finland.,Foundation for Research in Health Exercise and Nutrition, Kuopio Research Institute of Exercise Medicine, Kuopio, Finland
| | - Jukka Leinonen
- Department of Clinical Dentistry, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromsø, Norway
| | - Kaija-Leena Kolho
- Children's Hospital, University of Helsinki and Helsinki University Hospital (HUS), Helsinki, Finland.,Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Heli Viljakainen
- Folkhälsan Research Center, Helsinki, Finland.,Faculty of Medicine, University of Helsinki, Helsinki, Finland
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27
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Molecular Research on Oral Diseases and Related Biomaterials: A Journey from Oral Cell Models to Advanced Regenerative Perspectives. Int J Mol Sci 2022; 23:ijms23095288. [PMID: 35563679 PMCID: PMC9105421 DOI: 10.3390/ijms23095288] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 04/28/2022] [Accepted: 05/04/2022] [Indexed: 02/05/2023] Open
Abstract
Oral diseases such as gingivitis, periodontitis, and oral cancer affect millions of people worldwide. Much research has been conducted to understand the pathogenetic mechanisms of these diseases and translate this knowledge into therapeutics. This review aims to take the reader on a journey from the initial molecular discoveries to complex regenerative issues in oral medicine. For this, a semi-systematic literature search was carried out in Medline and Web of Science databases to retrieve the primary literature describing oral cell models and biomaterial applications in oral regenerative medicine. First, an in vitro cell model of gingival keratinocytes is discussed, which illustrates patho- and physiologic principles in the context of oral epithelial homeostasis and carcinogenesis and represents a cellular tool to understand biomaterial-based approaches for periodontal tissue regeneration. Consequently, a layered gradient nonwoven (LGN) is described, which demonstrates that the key features of biomaterials serve as candidates for oral tissue regeneration. LGN supports proper tissue formation and obeys the important principles for molecular mechanotransduction. Furthermore, current biomaterial-based tissue regeneration trends, including polymer modifications, cell-based treatments, antimicrobial peptides and optogenetics, are introduced to represent the full spectrum of current approaches to oral disease mitigation and prevention. Altogether, this review is a foray through established and new concepts in oral regenerative medicine and illustrates the process of knowledge translation from basic molecular and cell biological research to future clinical applications.
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28
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Park HJ, Hong H, Thangam R, Song MG, Kim JE, Jo EH, Jang YJ, Choi WH, Lee MY, Kang H, Lee KB. Static and Dynamic Biomaterial Engineering for Cell Modulation. NANOMATERIALS 2022; 12:nano12081377. [PMID: 35458085 PMCID: PMC9028203 DOI: 10.3390/nano12081377] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/31/2022] [Accepted: 04/04/2022] [Indexed: 02/01/2023]
Abstract
In the biological microenvironment, cells are surrounded by an extracellular matrix (ECM), with which they dynamically interact during various biological processes. Specifically, the physical and chemical properties of the ECM work cooperatively to influence the behavior and fate of cells directly and indirectly, which invokes various physiological responses in the body. Hence, efficient strategies to modulate cellular responses for a specific purpose have become important for various scientific fields such as biology, pharmacy, and medicine. Among many approaches, the utilization of biomaterials has been studied the most because they can be meticulously engineered to mimic cellular modulatory behavior. For such careful engineering, studies on physical modulation (e.g., ECM topography, stiffness, and wettability) and chemical manipulation (e.g., composition and soluble and surface biosignals) have been actively conducted. At present, the scope of research is being shifted from static (considering only the initial environment and the effects of each element) to biomimetic dynamic (including the concepts of time and gradient) modulation in both physical and chemical manipulations. This review provides an overall perspective on how the static and dynamic biomaterials are actively engineered to modulate targeted cellular responses while highlighting the importance and advance from static modulation to biomimetic dynamic modulation for biomedical applications.
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Affiliation(s)
- Hyung-Joon Park
- Department of Interdisciplinary Biomicrosystem Technology, College of Engineering, Korea University, Seoul 02841, Korea;
| | - Hyunsik Hong
- Department of Materials Science and Engineering, College of Engineering, Korea University, Seoul 02841, Korea; (H.H.); (R.T.)
| | - Ramar Thangam
- Department of Materials Science and Engineering, College of Engineering, Korea University, Seoul 02841, Korea; (H.H.); (R.T.)
- Institute for High Technology Materials and Devices, Korea University, Seoul 02841, Korea
| | - Min-Gyo Song
- Department of Biomedical Engineering, College of Health Science, Korea University, Seoul 02841, Korea; (M.-G.S.); (W.-H.C.); (M.-Y.L.)
| | - Ju-Eun Kim
- Department of Biomedical Engineering, College of Engineering, Korea University, Seoul 02841, Korea; (J.-E.K.); (E.-H.J.)
| | - Eun-Hae Jo
- Department of Biomedical Engineering, College of Engineering, Korea University, Seoul 02841, Korea; (J.-E.K.); (E.-H.J.)
| | - Yun-Jeong Jang
- Department of Biomedical Engineering, Armour College of Engineering, Illinois Institute of Technology, Chicago, IL 60616, USA;
| | - Won-Hyoung Choi
- Department of Biomedical Engineering, College of Health Science, Korea University, Seoul 02841, Korea; (M.-G.S.); (W.-H.C.); (M.-Y.L.)
| | - Min-Young Lee
- Department of Biomedical Engineering, College of Health Science, Korea University, Seoul 02841, Korea; (M.-G.S.); (W.-H.C.); (M.-Y.L.)
| | - Heemin Kang
- Department of Interdisciplinary Biomicrosystem Technology, College of Engineering, Korea University, Seoul 02841, Korea;
- Department of Materials Science and Engineering, College of Engineering, Korea University, Seoul 02841, Korea; (H.H.); (R.T.)
- Correspondence: (H.K.); (K.-B.L.)
| | - Kyu-Back Lee
- Department of Interdisciplinary Biomicrosystem Technology, College of Engineering, Korea University, Seoul 02841, Korea;
- Department of Biomedical Engineering, College of Health Science, Korea University, Seoul 02841, Korea; (M.-G.S.); (W.-H.C.); (M.-Y.L.)
- Department of Biomedical Engineering, College of Engineering, Korea University, Seoul 02841, Korea; (J.-E.K.); (E.-H.J.)
- Correspondence: (H.K.); (K.-B.L.)
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29
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Emerging Nanotherapeutic Approaches to Overcome Drug Resistance in Cancers with Update on Clinical Trials. Pharmaceutics 2022; 14:pharmaceutics14040866. [PMID: 35456698 PMCID: PMC9028322 DOI: 10.3390/pharmaceutics14040866] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 04/08/2022] [Accepted: 04/12/2022] [Indexed: 02/04/2023] Open
Abstract
A key issue with modern cancer treatments is the emergence of resistance to conventional chemotherapy and molecularly targeted medicines. Cancer nanotherapeutics were created in order to overcome the inherent limitations of traditional chemotherapeutics. Over the last few decades, cancer nanotherapeutics provided unparalleled opportunities to understand and overcome drug resistance through clinical assessment of rationally designed nanoparticulate delivery systems. In this context, various design strategies such as passive targeting, active targeting, nano-drug, and multimodal nano-drug combination therapy provided effective cancer treatment. Even though cancer nanotherapy has made great technological progress, tumor biology complexity and heterogeneity and a lack of comprehensive knowledge of nano-bio interactions remain important roadblocks to future clinical translation and commercialization. The current developments and advancements in cancer nanotherapeutics employing a wide variety of nanomaterial-based platforms to overcome cancer treatment resistance are discussed in this article. There is also a review of various nanotherapeutics-based approaches to cancer therapy, including targeting strategies for the tumor microenvironment and its components, advanced delivery systems for specific targeting of cancer stem cells (CSC), as well as exosomes for delivery strategies, and an update on clinical trials. Finally, challenges and the future perspective of the cancer nanotherapeutics to reverse cancer drug resistance are discussed.
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30
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Rafiee A, Delgado-Saborit JM, Sly PD, Amiri H, Mosalaei S, Hoseini M. Health consequences of disinfection against SARS-CoV-2: Exploring oxidative stress damage using a biomonitoring approach. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 814:152832. [PMID: 34986424 PMCID: PMC8720300 DOI: 10.1016/j.scitotenv.2021.152832] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 12/13/2021] [Accepted: 12/28/2021] [Indexed: 05/13/2023]
Abstract
Individuals who get involved in the disinfection of public settings using sodium hypochlorite might suffer adverse health effects. However, scarce information is available on the potential oxidative stress damage caused at low concentrations typically used for disinfection. We aimed to assess whether exposure to sodium hypochlorite during the COVID-19 pandemic causes oxidative stress damage in workers engaged in disinfection tasks. 75 operators engaged in the disinfection of public places were recruited as the case group, and 60 individuals who were not exposed to disinfectant were chosen as the control group. Spot urine samples were collected before (BE) and after exposure (AE) to disinfectants in the case group. Likewise, controls provided two spot urine samples in the same way as the case group. Urinary malondialdehyde (MDA) levels were quantified by forming thiobarbituric acid reactive substances in the urine. In addition, the concentration of 8-hydroxy-2'-deoxyguanosine (8-OHdG) in the urine was determined using an ELISA kit. Results showed significant differences in the urinary levels of oxidative stress markers, where median 8-OHdG (AE case: 3.84 ± 2.89 μg/g creatinine vs AE control 2.54 ± 1.21 μg/g creatinine) and MDA (AE case: 169 ± 89 μg/g creatinine vs AE control 121 ± 47 μg/g creatinine) levels in case group AE samples were 1.55 and 1.35-times higher than the control group AE samples (P < 0.05), respectively. Besides, urinary levels of oxidative stress markers in AE samples of the case group were significantly higher than in BE samples (8-OHdG BE 3.40 ± 1.95 μg/g creatinine, MDA BE 136 ± 51.3 μg/g creatinine, P < 0.05). Our results indicated that exposure to even low levels of sodium hypochlorite used in disinfection practices might cause oxidative stress related damage. With this in mind, implementing robust protective measures, such as specific respirators, is crucial to reduce the health burdens of exposure to disinfectants.
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Affiliation(s)
- Ata Rafiee
- Department of Medicine, University of Alberta, Edmonton, AB, Canada.
| | - Juana Maria Delgado-Saborit
- Universitat Jaume I, Perinatal Epidemiology, Environmental Health and Clinical Research, School of Medicine, Castellon, Spain; ISGlobal Barcelona Institute for Global Health, Barcelona Biomedical Research Park, Barcelona, Spain; Environmental Research Group, MRC Centre for Environment and Health, Imperial College London, United Kingdom; Division of Environmental Health & Risk Management, School of Geography, Earth & Environmental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Peter D Sly
- Children's Health and Environment Program, Child Health Research Center, The University of Queensland, South Brisbane, Australia
| | - Hoda Amiri
- Environmental Health Engineering Research Center, Kerman University of Medical Sciences, Kerman, Iran; Department of Environmental Health Engineering, Faculty of Public Health, Kerman University of Medical Sciences, Kerman, Iran.
| | - Shamim Mosalaei
- Department of Environmental Health, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Hoseini
- Research Center for Health Sciences, Institute of Health, Department of Environmental Health, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran.
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Alimoradi N, Sharqi M, Firouzabadi D, Sadeghi MM, Moezzi MI, Firouzabadi N. SNPs of ACE1 (rs4343) and ACE2 (rs2285666) genes are linked to SARS-CoV-2 infection but not with the severity of disease. Virol J 2022; 19:48. [PMID: 35305693 PMCID: PMC8934128 DOI: 10.1186/s12985-022-01782-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 03/10/2022] [Indexed: 01/08/2023] Open
Abstract
COVID-19 and the renin-angiotensin system (RAS) are linked by angiotensin-converting enzyme 2 (ACE2), a key enzyme in RAS that has been validated as a SARS-CoV-2 receptor. Functional ACE1/ACE2 gene polymorphisms may lead to the imbalance between ACE/ACE2 ratio and thus generating RAS imbalance that is associated with higher degrees of lung damage in ARDS that may contribute to the COVID-19 infection outcome. Herein, we investigated the role of RAS gene polymorphisms, ACE1 (A2350G) and ACE2 (G8790A) as risk predictors for susceptibility and severity of COVID-19 infection. A total of 129 included: negative controls without a history of COVID-19 infection (n = 50), positive controls with a history of COVID-19 infection who were not hospitalized (n = 35), and patients with severe COVID-19 infection who were hospitalized in the intensive care unit (n = 44). rs4343 of ACE and rs2285666 of ACE2 were genotyped using PCR-RFLP method. Our results indicated that susceptibility to COVID-19 infection was associated with age, GG genotype of A2350G (Pa = 0.01; OR 4.7; 95% CI 1.4-15.1 and Pc = 0.040; OR 2.5; 95% CI 1.05-6.3) and GG genotype of G8790A (Pa = 0.044; OR 6.17; 95% CI 1.05-35.71 and Pc = 0.0001; OR 5.5; 95% CI 2.4-12.4). The G allele of A2350G (Pa = 0.21; OR 1.74; 95% CI 0.73-4.17 and Pc = 0.007; OR 2.1; 95% CI 1.2-3.5) and G allele of G8790A (Pa = 0.002; OR 4.26; 95% CI 1.7-10.65 and Pc = 0.0001; OR 4.7; 95% CI 2.4-9.2) were more frequent in ICU-admitted patients and positive control group. Also lung involvement due to COVID-19 infection was associated with age and the comorbidities such as diabetes. In conclusion, our findings support the association between the wild genotype (GG) of ACE2 and homozygote genotype (GG) of ACE1 and sensitivity to COVID-19 infection, but not its severity. However, confirmation of this hypothesis requires further studies with more participants.
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Affiliation(s)
- Nahid Alimoradi
- Department of Pharmacology & Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Moein Sharqi
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Dena Firouzabadi
- Shahid Faghihi Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
- Clinical Pharmacy Department, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Moein Sadeghi
- Department of Pharmacology & Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Iman Moezzi
- Department of Pharmacology & Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Negar Firouzabadi
- Department of Pharmacology & Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.
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Meng X, Guo M, Gao Z, Yang Z, Yuan Z, Kang L. The effects of Wuhan highway lockdown measures on the spread of COVID-19 in China. TRANSPORT POLICY 2022; 117:169-180. [PMID: 35079210 PMCID: PMC8770363 DOI: 10.1016/j.tranpol.2022.01.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 12/27/2021] [Accepted: 01/17/2022] [Indexed: 05/27/2023]
Abstract
To verify the effects of Wuhan highway lockdown measures on the spread of COVID-19 across China cities, we extracted the vehicle outflow from Wuhan to 245 cities from the Chinese highway toll system. A dynamic exponential risk model that considered the vehicle outflow, city gross domestic product, city population, and distance between two cities was established to characterize the spread of pandemics and quantify the blocking effects. Results showed that an early highway lockdown measure could indeed reduce the confirmed cases and vehicles with 1-9 seats played a leading role. The confirmed cases in Guangxi, Henan, and Shanxi could be reduced by more than 50%, as well as Hubei by 20% if the highway was closed 3 days in advance. The blocking effects on Fujian, Jiangxi, Guangdong, Hunan, and Shandong were not obvious, where the number of confirmed cases only decreased by a small proportion (below 10%). The findings could be used to help each provincial government to adjust policies properly and improve the effectiveness of epidemic control and prevention. Moreover, the proposed method could also be applied to various countries or regions affected by COVID-19, as well as other similar pandemics.
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Affiliation(s)
- Xin Meng
- School of Traffic and Transportation, Beijing Jiaotong University, Beijing, 100044, China
| | - Mingxue Guo
- School of Traffic and Transportation, Beijing Jiaotong University, Beijing, 100044, China
| | - Ziyou Gao
- School of Traffic and Transportation, Beijing Jiaotong University, Beijing, 100044, China
| | - Zhenzhen Yang
- School of Traffic and Transportation, Beijing Jiaotong University, Beijing, 100044, China
| | - Zhilu Yuan
- School of Architecture and Urban Planning, Research Institute for Smart Cities, Shenzhen University, Shenzhen, 518052, China
- Key Laboratory of Urban Land Resources Monitoring and Simulation, Ministry of Natural Resources, Shenzhen, China
| | - Liujiang Kang
- School of Traffic and Transportation, Beijing Jiaotong University, Beijing, 100044, China
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Villaescusa L, Zaragozá F, Gayo-Abeleira I, Zaragozá C. A New Approach to the Management of COVID-19. Antagonists of IL-6: Siltuximab. Adv Ther 2022; 39:1126-1148. [PMID: 35072887 PMCID: PMC8784859 DOI: 10.1007/s12325-022-02042-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 01/06/2022] [Indexed: 02/06/2023]
Abstract
Since the beginning of the pandemic, numerous national and international clinical trials have been conducted with a large number of drugs. Many of them are intended for the treatment of other pathologies; however, despite the great effort made, no specific drug is available for the treatment of the symptoms of respiratory disease caused by SARS-CoV-2 infection. The aim of this article is to provide data to justify the use of drugs to tackle the effects produced by IL-6 as the main inflammatory mediator in patients with COVID-19 with severe respiratory complications, considering all clinical evidence linking the poor prognosis of these patients with increased IL-6 levels in the context of cytokine release syndrome. Furthermore, data are provided to justify the proposal of a rational dosing of siltuximab, a monoclonal antibody specifically targeting IL-6, based on RCP levels, considering the limited results published so far on the use of this drug in COVID-19. A literature search was conducted on the clinical trials of siltuximab published to date as well as on the different IL-6 signalling pathways and the effects of its overexpression. Knowledge of the mechanisms of action on these pathways may provide important information for the design of drugs useful in the treatment of these patients. This article describes the characteristics, properties, mechanism of action, therapeutic uses and clinical studies conducted with siltuximab so far. The results confirm that administration of siltuximab downregulates IL-6 levels, thereby reducing the inflammatory process in COVID-19 patients with severe respiratory disease, suggesting that it can be successfully used to prevent cytokine release syndrome and death from this cause.
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Affiliation(s)
- Lucinda Villaescusa
- Pharmacology Unit, Biomedical Sciences Department, University of Alcalá, Madrid, 28805, Alcalá de Henares, Spain.
| | - Francisco Zaragozá
- Pharmacology Unit, Biomedical Sciences Department, University of Alcalá, Madrid, 28805, Alcalá de Henares, Spain
| | - Irene Gayo-Abeleira
- Pharmacology Unit, Biomedical Sciences Department, University of Alcalá, Madrid, 28805, Alcalá de Henares, Spain
| | - Cristina Zaragozá
- Pharmacology Unit, Biomedical Sciences Department, University of Alcalá, Madrid, 28805, Alcalá de Henares, Spain
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Wu TJ, Yu AC, Lee JT. Management of post-COVID-19 olfactory dysfunction. CURRENT TREATMENT OPTIONS IN ALLERGY 2022; 9:1-18. [PMID: 35004126 PMCID: PMC8723803 DOI: 10.1007/s40521-021-00297-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/18/2021] [Indexed: 01/02/2023]
Abstract
Purpose of Review Olfactory dysfunction is a frequent complication of SARS-CoV-2 infection. This review presents the current literature regarding the management of post-COVID-19 olfactory dysfunction (PCOD). Recent Findings A systematic review of the literature using the PubMed/MEDLINE, EMBASE, and Cochrane databases for the following keywords, “Covid-19,” “SARS-CoV-2,” “anosmia,” “olfactory,” “treatment,” and “management” was performed. While most cases of post-COVID-19 olfactory dysfunction resolve spontaneously within 2 weeks of symptom onset, patients with symptoms that persist past 2 weeks require medical management. The intervention with the greatest degree of supporting evidence is olfactory training, wherein patients are repeatedly exposed to potent olfactory stimuli. To date, no large-scale randomized clinical trials exist that examine the efficacy of pharmacologic therapies for PCOD. Limited clinical trials and prospective controlled trials suggest intranasal corticosteroids and oral corticosteroids may alleviate symptoms. Summary Olfactory training should be initiated as soon as possible for patients with PCOD. Patients may benefit from a limited intranasal or oral corticosteroid course. Further research on effective pharmacologic therapies for PCOD is required to manage the growing number of patients with this condition.
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Affiliation(s)
- Tara J Wu
- Department of Head and Neck Surgery, David Geffen School of Medicine at the University of California, Los Angeles (UCLA), 10833 Le Conte Avenue, 62-132 CHS, Los Angeles, CA 90095 USA
| | - Alice C Yu
- Department of Head and Neck Surgery, David Geffen School of Medicine at the University of California, Los Angeles (UCLA), 10833 Le Conte Avenue, 62-132 CHS, Los Angeles, CA 90095 USA
| | - Jivianne T Lee
- Department of Head and Neck Surgery, David Geffen School of Medicine at the University of California, Los Angeles (UCLA), 10833 Le Conte Avenue, 62-132 CHS, Los Angeles, CA 90095 USA
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Haghpanah A, Masjedi F, Salehipour M, Hosseinpour A, Roozbeh J, Dehghani A. Is COVID-19 a risk factor for progression of benign prostatic hyperplasia and exacerbation of its related symptoms?: a systematic review. Prostate Cancer Prostatic Dis 2022; 25:27-38. [PMID: 34007019 PMCID: PMC8129694 DOI: 10.1038/s41391-021-00388-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 04/28/2021] [Accepted: 04/30/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND To explore the potential mechanisms of SARS-CoV-2 in targeting the prostate gland, leading to exacerbation of benign prostatic hyperplasia (BPH) symptoms and greater risks of BPH complications such as acute urinary retention. METHODS A categorized and comprehensive search in the literature has been conducted by 10 April 2021 using international databases including PubMed, Embase, Web of Science, Scopus, and Cochrane Library in line with the PRISMA guidelines recommendations. PICO strategy was used to formulate the research question. The following terms were used: urology, COVID-19, coronavirus, BPH, inflammation, androgen receptors, LUTS, IPSS, PSA, and SARS-CoV-2 or a combination of them. Studies with irrelevant purposes and duplicates were excluded. The selected studies were performed on humans and published in English. RESULTS The research revealed 89 articles. After title screening and considering exclusion criteria, 52 papers were included for the systematic review. BPH is a common condition affecting older men. SARS-CoV-2 infects the host cell by binding to angiotensin converting enzyme 2 (ACE2). A hyperactivated RAS system during infection with SARS-CoV-2 may lead to activation of pro-inflammatory pathways and increased cytokine release. Thus, this virus can lead to exacerbation of lower urinary tract symptoms (LUTS) and trigger inflammatory processes in the prostate gland. Since androgen receptors (AR) play an important role in the BPH pathophysiology and infection with SARS-CoV-2 may be androgen-mediated, BPH progression and its related symptoms can be a complication of COVID-19 through AR involvement and metabolic disturbances. CONCLUSIONS Based on the current findings, SARS-CoV-2 can possibly damage the prostate and worsen BPH and its related LUTS through ACE2 signaling, AR-related mechanisms, inflammation, and metabolic derangement. We encourage future studies to investigate the possible role of COVID-19 in the progression of BPH-related LUTS and examine the prostatic status in susceptible patients with relevant available questionnaires (e.g., IPSS) and serum biomarkers (e.g., PSA).
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Affiliation(s)
- Abdolreza Haghpanah
- grid.412571.40000 0000 8819 4698Shiraz Nephro-Urology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran ,grid.412571.40000 0000 8819 4698Department of Urology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Fatemeh Masjedi
- grid.412571.40000 0000 8819 4698Shiraz Nephro-Urology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehdi Salehipour
- grid.412571.40000 0000 8819 4698Department of Urology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Alireza Hosseinpour
- grid.412571.40000 0000 8819 4698Shiraz Nephro-Urology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran ,grid.412571.40000 0000 8819 4698Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Jamshid Roozbeh
- grid.412571.40000 0000 8819 4698Shiraz Nephro-Urology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Anahita Dehghani
- grid.412571.40000 0000 8819 4698Shiraz Nephro-Urology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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Zhang FY, Li RZ, Xu C, Fan XX, Li JX, Meng WY, Wang XR, Liang TL, Guan XX, Pan HD, Liu L, Yao XJ, Wu QB, Leung ELH. Emodin induces apoptosis and suppresses non-small-cell lung cancer growth via downregulation of sPLA2-IIa. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 95:153786. [PMID: 34785104 DOI: 10.1016/j.phymed.2021.153786] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 09/22/2021] [Accepted: 09/29/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Lung cancer has become the principal cause of cancer-related deaths. Emodin is a Chinese herb-derived compound extracted from the roots of Rheum officinale that exhibits numerous pharmacological characteristics. Secretory phospholipase A2-IIa (sPLA2-IIa) is overexpressed in cancers and plays an important role in cancer development. PURPOSE This study aims to investigate the anti-tumor mechanism of emodin in non-small-cell lung cancer (NSCLC). METHODS MTT assay was applied to detect the sensitivity of emodin to NSCLC cell line. Flow cytometry was used to examine the effect of emodin on cell cycle distribution and evaluate ROS level and apoptosis. Western blot analysis was utilised to examine the expression levels of sPLA2-IIa, PKM2, and AMPK and its downstream pathways induced by emodin. Enzyme inhibition assay was applied to investigate the inhibitory effect of emodin on sPLA2-IIa. The anticancer effect of emodin was also detected using an in vivo model. RESULTS Emodin significantly inhibited NSCLC proliferation in vivo and in vitro and was relatively less cytotoxic to normal lung cell lines. Most importantly, emodin inhibited the proliferation of KRAS mutant cell lines by decreasing the expression of sPLA2-IIa and NF-κB pathways. Emodin also inhibited mTOR and AKT and activated the AMPK pathway. Furthermore, emodin induced apoptosis, increased the reactive oxygen species (ROS) level, and arrested the cell cycle. CONCLUSION Emodin exhibited a novel anti-tumor mechanism of inhibiting the proliferation of KRAS mutant cell lines by decreasing the expression levels of sPLA2-IIa and NF-κB pathways. Hence, emodin can potentially serve as a therapeutic target in NSCLC.
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Affiliation(s)
- Fang-Yuan Zhang
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, Macau University of Science and Technology, Avenida Wai Long, Macao, Taipa Macau (SAR), China; State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau (SAR), China
| | - Run-Ze Li
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, Macau University of Science and Technology, Avenida Wai Long, Macao, Taipa Macau (SAR), China; State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau (SAR), China
| | - Cong Xu
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, Macau University of Science and Technology, Avenida Wai Long, Macao, Taipa Macau (SAR), China; State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau (SAR), China
| | - Xing-Xing Fan
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, Macau University of Science and Technology, Avenida Wai Long, Macao, Taipa Macau (SAR), China; State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau (SAR), China
| | - Jia-Xin Li
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, Macau University of Science and Technology, Avenida Wai Long, Macao, Taipa Macau (SAR), China; State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau (SAR), China
| | - Wei-Yu Meng
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, Macau University of Science and Technology, Avenida Wai Long, Macao, Taipa Macau (SAR), China; State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau (SAR), China
| | - Xuan-Run Wang
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, Macau University of Science and Technology, Avenida Wai Long, Macao, Taipa Macau (SAR), China; State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau (SAR), China
| | - Tu-Liang Liang
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, Macau University of Science and Technology, Avenida Wai Long, Macao, Taipa Macau (SAR), China; State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau (SAR), China
| | - Xiao-Xiang Guan
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, Macau University of Science and Technology, Avenida Wai Long, Macao, Taipa Macau (SAR), China; State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau (SAR), China
| | - Hu-Dan Pan
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, Macau University of Science and Technology, Avenida Wai Long, Macao, Taipa Macau (SAR), China; State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau (SAR), China
| | - Liang Liu
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, Macau University of Science and Technology, Avenida Wai Long, Macao, Taipa Macau (SAR), China; State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau (SAR), China
| | - Xiao-Jun Yao
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, Macau University of Science and Technology, Avenida Wai Long, Macao, Taipa Macau (SAR), China; State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau (SAR), China
| | - Qi Biao Wu
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, Macau University of Science and Technology, Avenida Wai Long, Macao, Taipa Macau (SAR), China; State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau (SAR), China.
| | - Elaine Lai-Han Leung
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, Macau University of Science and Technology, Avenida Wai Long, Macao, Taipa Macau (SAR), China; State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau (SAR), China; Zhuhai Hospital of Traditional Chinese and Western Medicine, Zhuhai City, Guangdong, PR China.
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Clinical evaluation of antiseptic mouth rinses to reduce salivary load of SARS-CoV-2. Sci Rep 2021; 11:24392. [PMID: 34937855 PMCID: PMC8695582 DOI: 10.1038/s41598-021-03461-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 12/02/2021] [Indexed: 01/07/2023] Open
Abstract
Most public health measures to contain the COVID-19 pandemic are based on preventing the pathogen spread, and the use of oral antiseptics has been proposed as a strategy to reduce transmission risk. The aim of this manuscript is to test the efficacy of mouthwashes to reduce salivary viral load in vivo. This is a multi-centre, blinded, parallel-group, placebo-controlled randomised clinical trial that tests the effect of four mouthwashes (cetylpyridinium chloride, chlorhexidine, povidone-iodine and hydrogen peroxide) in SARS-CoV-2 salivary load measured by qPCR at baseline and 30, 60 and 120 min after the mouthrinse. A fifth group of patients used distilled water mouthrinse as a control. Eighty-four participants were recruited and divided into 12–15 per group. There were no statistically significant changes in salivary viral load after the use of the different mouthwashes. Although oral antiseptics have shown virucidal effects in vitro, our data show that salivary viral load in COVID-19 patients was not affected by the tested treatments. This could reflect that those mouthwashes are not effective in vivo, or that viral particles are not infective but viral RNA is still detected by PCR. Viral infectivity studies after the use of mouthwashes are therefore required. (https://clinicaltrials.gov/ct2/show/NCT04707742; Identifier: NCT04707742)
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Bilirubin levels as an independent predictor of myocarditis in patients with COVID-19. Egypt Heart J 2021; 73:108. [PMID: 34928467 PMCID: PMC8686087 DOI: 10.1186/s43044-021-00234-w] [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: 06/23/2021] [Accepted: 12/13/2021] [Indexed: 01/08/2023] Open
Abstract
Background Myocardial damage worsens the clinical course and prognosis of coronavirus disease 2019 (COVID-19) patients. High total bilirubin levels have been associated with a poor prognosis in COVID-19. This study aimed to investigate the predictive value of the total bilirubin level, a marker of heme oxygenase-1 enzyme activity, in determining myocarditis in patients with COVID-19. Results A total of 190 patients diagnosed with COVID-19 were enrolled in the study. The patients were divided into two groups based on their troponin positivity. The study group (n = 95) consisted of patients with high troponin, and the control group (n = 95) consisted of patients without high troponin levels. The D-dimer (727 [572–995] vs. 591 [440–790], p = 0.001), C-reactive protein (CRP) (30.0 [10–48] vs. 10.3 [5.8–15.9], p < 0.001), and total bilirubin (9.5 [8.2–12.1] vs. 7.0 [5.3–8.0], p < 0.001) levels were significantly higher in the study group. In multivariate analysis, CRP (odds ratio [OR]: 1.103; 95% confidence interval [CI]: 1.060–1.148; p < 0.001) and total bilirubin (OR: 1.612; 95% CI: 1.330–1.954; p < 0.001) levels were independent predictors of myocarditis in COVID-19. Conclusions Total bilirubin levels can be used as an early predictor of myocarditis in COVID-19 and can contribute to therapy management.
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The effect of door opening on air-mixing in a positively pressurized room: Implications for operating room air management during the COVID outbreak. JOURNAL OF BUILDING ENGINEERING 2021; 44:102900. [PMCID: PMC8214326 DOI: 10.1016/j.jobe.2021.102900] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 05/19/2021] [Accepted: 06/15/2021] [Indexed: 05/31/2023]
Abstract
The effect of the built environment on the predominant indoor airflow patterns is significant. To protect the healthcare workers at the front line from the outbreak of COVID − 19, it is necessary to understand the transmission dynamics of the virus, which has been shown to depend on indoor airflow patterns. In hospital operating rooms (ORs), design requirements pose a unique challenge as the positive pressure in the OR can facilitate virus spread into adjacent spaces, shall a COVID-positive patient require a surgical procedure. Moreover, the turbulent vortexes from door motions could independently increase the probability of virus escape from the OR to the adjacent corridors. Therefore, to obtain critical knowledge about the alteration of flow fields due to door movement in a positively pressurized room and quantify the air mixing across the door, a series of experiments were conducted in a controlled chamber. The results demonstrate significant impacts of the door opening on the airflow patterns. Increased alterations near the door and vortexes penetrating far into the chamber with multiple doors openings warrant further study of the indoor airflow dynamic under door motion. This experimental study proposes an algorithm to quantify the air exchange due to a standard door opening and quantifies this exfiltration of contaminated air up to 2 air changes per hour, that is 10% of the chamber supply airflow rate. The algorithm to quantify the dissipated air quantity and the analyses of interaction between initial conditions and door openings contribute to the originality of this paper.
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Hsieh K, Wang Y, Chen L, Zhao Z, Savitz S, Jiang X, Tang J, Kim Y. Drug repurposing for COVID-19 using graph neural network and harmonizing multiple evidence. Sci Rep 2021; 11:23179. [PMID: 34848761 PMCID: PMC8632883 DOI: 10.1038/s41598-021-02353-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 11/15/2021] [Indexed: 12/13/2022] Open
Abstract
Since the 2019 novel coronavirus disease (COVID-19) outbreak in 2019 and the pandemic continues for more than one year, a vast amount of drug research has been conducted and few of them got FDA approval. Our objective is to prioritize repurposable drugs using a pipeline that systematically integrates the interaction between COVID-19 and drugs, deep graph neural networks, and in vitro/population-based validations. We first collected all available drugs (n = 3635) related to COVID-19 patient treatment through CTDbase. We built a COVID-19 knowledge graph based on the interactions among virus baits, host genes, pathways, drugs, and phenotypes. A deep graph neural network approach was used to derive the candidate drug's representation based on the biological interactions. We prioritized the candidate drugs using clinical trial history, and then validated them with their genetic profiles, in vitro experimental efficacy, and population-based treatment effect. We highlight the top 22 drugs including Azithromycin, Atorvastatin, Aspirin, Acetaminophen, and Albuterol. We further pinpointed drug combinations that may synergistically target COVID-19. In summary, we demonstrated that the integration of extensive interactions, deep neural networks, and multiple evidence can facilitate the rapid identification of candidate drugs for COVID-19 treatment.
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Affiliation(s)
- Kanglin Hsieh
- Center for Secure Artificial Intelligence for Healthcare, School of Biomedical Informatics, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Yinyin Wang
- Research Program in Systems Oncology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Luyao Chen
- Center for Secure Artificial Intelligence for Healthcare, School of Biomedical Informatics, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Zhongming Zhao
- Center for Precision Health, School of Biomedical Informatics, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Sean Savitz
- Institute for Stroke and Cerebrovascular Disease, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Xiaoqian Jiang
- Center for Secure Artificial Intelligence for Healthcare, School of Biomedical Informatics, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Jing Tang
- Research Program in Systems Oncology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Yejin Kim
- Center for Secure Artificial Intelligence for Healthcare, School of Biomedical Informatics, The University of Texas Health Science Center at Houston, Houston, TX, USA.
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Sharma S, Jagadeesh H, Saxena A, Chakravarthy H, Devanathan V. Central nervous system as a target of novel coronavirus infections: Potential routes of entry and pathogenic mechanisms. J Biosci 2021. [PMID: 34840148 PMCID: PMC8612883 DOI: 10.1007/s12038-021-00232-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Since the COVID-19 pandemic started in December 2019, there have been several reports of patients succumbing to neurological complications. Early reports were suggestive of a possibility, while by early 2020 it was clearly evident that although SARS-CoV-2 primarily attacks the respiratory system, the brain is one of the most affected organs post-recovery. Although it may be premature to comment on the long-term effects of COVID-19 in brain, some reliable predictions can be made based on the data currently available. Further, exploring the CNS connections of SARS-CoV-2 is of keen interest for neuroscience researchers. As soon as the virus enters the nasal region, it is exposed to the olfactory nervous system which is interlinked with the visual system, and hence we explore the mechanism of entry of this virus into CNS, including brain, olfactory and retinal nervous systems. In this review, we have thoroughly reviewed reports about both SARS-CoV-1 and SARS-CoV-2 with respect to their ability to breach the blood-brain and blood-retinal barriers. We have compiled different neurological conditions resulting from COVID-19 and looked into viral infections related to COVID-19 to understand how the virus may gain control of the olfactory and visual systems. Once the dust settles on the pandemic, it would be interesting to explore the extent of viral infection in the CNS. The long-term effects of this virus in the CNS are not yet known, and several scientific research papers evolving in this field will throw light on the same.
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Beyene GT, Alemu F, Kebede ES, Alemayehu DH, Seyoum T, Tefera DA, Assefa G, Tesfaye A, Habte A, Bedada G, Tegene B, Yeshambaw M, Wassie L, Mihret A, Abdissa A, Mulu A. Saliva is superior over nasopharyngeal swab for detecting SARS-CoV2 in COVID-19 patients. Sci Rep 2021; 11:22640. [PMID: 34811429 PMCID: PMC8608806 DOI: 10.1038/s41598-021-02097-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 11/09/2021] [Indexed: 12/15/2022] Open
Abstract
Scaling up of diagnostic capacity is needed to mitigate the global pandemic of SARS-CoV2. However, there are challenges including shortage of sample collection swabs and transport medium. Saliva has been recommended as a simple, low-cost, non-invasive option. However, data from different populations and settings are limited. Here, we showed that saliva could be a good alternative sample to diagnose COVID-19 patients. Pair of NPS-saliva samples was collected from 152 symptomatic; confirmed COVID-19 patients, and compared their positivity rate, viral load, and duration of viral shedding. From 152 patients, 80 (52.63%) tested positive and 72 (47.37%) were negative for SARSA-CoV2 in NPS sample. In saliva, 129 (92.14%) were tested positive and 11 (7.86%) were negative on the day of admission to hospital. The overall percent agreement of RT-PCR result of Saliva to NPS was 70% (196/280). A comparison of viral load from 72 NPS-saliva pair samples on day of admission shows saliva contains significantly higher viral load (P < 0.001). In conclusion, saliva has higher yield in detecting SARS-CoV2, and COVID-19 patients show higher viral load and prolonged period of viral shedding in saliva. Therefore, we recommend saliva as a better alternative sample to NPS to diagnose COVID-19 patients.
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Affiliation(s)
- Getachew Tesfaye Beyene
- Armauer Hansen Research Institute, Jumma Road ALERT Compound, P.O. Box address 1005, Addis Ababa, Ethiopia.
| | - Fekadu Alemu
- Armauer Hansen Research Institute, Jumma Road ALERT Compound, P.O. Box address 1005, Addis Ababa, Ethiopia
| | - Eyerusalem Solomon Kebede
- Armauer Hansen Research Institute, Jumma Road ALERT Compound, P.O. Box address 1005, Addis Ababa, Ethiopia
| | - Dawit Hailu Alemayehu
- Armauer Hansen Research Institute, Jumma Road ALERT Compound, P.O. Box address 1005, Addis Ababa, Ethiopia
| | - Tamirayehu Seyoum
- Armauer Hansen Research Institute, Jumma Road ALERT Compound, P.O. Box address 1005, Addis Ababa, Ethiopia
| | - Dessalegn Abeje Tefera
- Armauer Hansen Research Institute, Jumma Road ALERT Compound, P.O. Box address 1005, Addis Ababa, Ethiopia
| | - Gebeyehu Assefa
- Armauer Hansen Research Institute, Jumma Road ALERT Compound, P.O. Box address 1005, Addis Ababa, Ethiopia
| | - Abebech Tesfaye
- Armauer Hansen Research Institute, Jumma Road ALERT Compound, P.O. Box address 1005, Addis Ababa, Ethiopia
| | - Anteneh Habte
- Armauer Hansen Research Institute, Jumma Road ALERT Compound, P.O. Box address 1005, Addis Ababa, Ethiopia
| | - Gadissa Bedada
- St. Paul's Hospital Millennium Medical College, Addis Ababa, Ethiopia
| | | | - Melese Yeshambaw
- Armauer Hansen Research Institute, Jumma Road ALERT Compound, P.O. Box address 1005, Addis Ababa, Ethiopia
| | - Liya Wassie
- Armauer Hansen Research Institute, Jumma Road ALERT Compound, P.O. Box address 1005, Addis Ababa, Ethiopia
| | - Adane Mihret
- Armauer Hansen Research Institute, Jumma Road ALERT Compound, P.O. Box address 1005, Addis Ababa, Ethiopia
| | - Alemseged Abdissa
- Armauer Hansen Research Institute, Jumma Road ALERT Compound, P.O. Box address 1005, Addis Ababa, Ethiopia
| | - Andargachew Mulu
- Armauer Hansen Research Institute, Jumma Road ALERT Compound, P.O. Box address 1005, Addis Ababa, Ethiopia
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ERAS, a Member of the Ras Superfamily, Acts as an Oncoprotein in the Mammary Gland. Cancers (Basel) 2021; 13:cancers13215588. [PMID: 34771750 PMCID: PMC8582886 DOI: 10.3390/cancers13215588] [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: 10/22/2021] [Revised: 11/02/2021] [Accepted: 11/04/2021] [Indexed: 11/17/2022] Open
Abstract
Simple Summary The genes of the RAS family are among the group of genes most frequently mutated in human cancer. ERAS is a relatively unknown gene of this family. Although ERAS is overexpressed in some tumoral samples and in several cancer cell lines of human origin, it is not known if its expression drives tumor formation or if, alternatively, its expression is a secondary event in tumoral transformation. In this report, in order to clarify the role of ERAS in mammary tumorigenesis, we studied transgenic mice expressing ERAS in myoepithelial cells of mammary and other exocrine glands and in basal cells of stratified epithelia. These mice displayed an altered development and function of the mammary glands, and suffered high-frequency tumoral lesions in the mammary glands resembling a rare human breast tumor named malignant adenomyoepithelioma. Our results clearly demonstrate that ERAS is a true oncogene able to produce mammary tumors when inappropriately expressed. Abstract ERAS is a relatively uncharacterized gene of the Ras superfamily. It is expressed in ES cells and in the first stages of embryonic development; later on, it is silenced in the majority of cell types and tissues. Although there are several reports showing ERAS expression in tumoral cell lines and human tumor samples, it is unknown if ERAS deregulated expression is enough to drive tumor development. In this report, we have generated transgenic mice expressing ERAS in myoepithelial basal cells of the mammary gland and in basal cells of stratified epithelia. In spite of the low level of ERAS expression, these transgenic mice showed phenotypic alterations resembling overgrowth syndromes caused by the activation of the AKT-PI3K pathway. In addition, their mammary glands present developmental and functional disabilities accompanied by morphological and biochemical alterations in the myoepithelial cells. These mice suffer from tumoral transformation in the mammary glands with high incidence. These mammary tumors resemble, both histologically and by the expression of differentiation markers, malignant adenomyoepitheliomas. In sum, our results highlight the importance of ERAS silencing in adult tissues and define a truly oncogenic role for ERAS in mammary gland cells when inappropriately expressed.
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Li X, Mak CM, Ma KW, Wong HM. Restoration of dental services after COVID-19: The fallow time determination with laser light scattering. SUSTAINABLE CITIES AND SOCIETY 2021; 74:103134. [PMID: 34540565 PMCID: PMC8437689 DOI: 10.1016/j.scs.2021.103134] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 06/17/2021] [Accepted: 06/28/2021] [Indexed: 05/10/2023]
Abstract
In time, dental health care has slowly expanded beyond emergency treatment to treat oral diseases. How to reduce the cross-transmission risk in dental surgery has raised much more attention. Considering the lack of consistency of fallow time (FT) in its necessity and duration, the highly sensitive laser light scattering method has been proposed to visualize the airborne lifetime and decay rate of suspended particles in the dental surgery environment. The FT is defined as when the number of suspended particles drops to the level that the next patient can safely enter after the aerosol-generating procedures (AGPs). The ultrasonic scaling was performed in the mock-up experimental dental clinic with 6 air changes per hour (ACH), and the instantaneous moments of the droplets were recorded by a high-speed camera. Without any mitigation measures, the estimated FT in the single dental surgery environment with 6 ACH was in the range of 27-35 min, significantly affecting the number of daily dental services. Despite the cooperation of high-volume evacuation (HVE [IO]) cannot eliminate the FT to zero minutes, the equipment could reduce the required FT by 3-11 min for the suspended particles reducing the baseline levels. Owing to the longer airborne lifetime of suspended particles, the relevant protection equipment, especially respiratory protection, is quite essential in dental surgery. The obtained results of this study will provide evidence to establish the revised FT in dental surgery guidelines and protect the health and wellbeing of urban dwellers.
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Affiliation(s)
- Xiujie Li
- Department of Building Services Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
| | - Cheuk Ming Mak
- Department of Building Services Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
| | - Kuen Wai Ma
- Department of Building Services Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
| | - Hai Ming Wong
- Faculty of Dentistry, The University of Hong Kong, Pok Fu Lam, Hong Kong Island, Hong Kong, China
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45
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Li X, Mak CM, Wai Ma K, Wong HM. How the high-volume evacuation alters the flow-field and particle removal characteristics in the mock-up dental clinic. BUILDING AND ENVIRONMENT 2021; 205:108225. [PMID: 34376905 PMCID: PMC8343392 DOI: 10.1016/j.buildenv.2021.108225] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/17/2021] [Accepted: 08/02/2021] [Indexed: 05/09/2023]
Abstract
The exposure risk of droplets and aerosols emitted from the oral cavity to the dental professionals and patients has received more attention especially the ongoing outbreak of COVID-19. The aim of this study is to address the question about how the use of the high-volume evacuation (HVE) alters the risk profiles compared with the situation only personal protective equipment (PPE). The risk profiles of the different situations were analyzed in terms of droplet velocity, flow field characteristics, and particle removal efficiency. The ultrasonic scaling with suction was performed in the mock-up experimental dental clinic, and the instantaneous moment when the HVE acted on the droplets was visualized using a laser light scattering technique. From the results of the velocity profiles, the hypothesis about the moderate effect of the HVE on high-velocity small droplets near the mannequin's mouth had been firstly proven in this study. The suction can be characterized as low-threshold equipment to bring substantial benefits to reduce the area of the contaminated region. Once the cooperation of suction, the pair of vortexes that were in the face shield area of the dental professional would be eliminated, removing the high-level contaminated region near the breathing area of dental professionals. Compared with the low and medium volume evacuation, the particle removal efficiency of the HVE was more stable at 60%. The research will provide references to the HVE recommendation in the dentistry clinical practice guidelines.
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Affiliation(s)
- Xiujie Li
- Department of Building Services Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong
| | - Cheuk Ming Mak
- Department of Building Services Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong
| | - Kuen Wai Ma
- Department of Building Services Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong
| | - Hai Ming Wong
- Faculty of Dentistry, The University of Hong Kong, Pok Fu Lam, Hong Kong Island, Hong Kong
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Zhang J, Mo T, Lin M, Chen Z, Lian C, Zhang G, Li J. Development of Injectable Hydroxyapatite/2-(dimethylamino)Ethyl Methacrylate/Polyvinylpyrrolidone Aqua-Hydrogel System to Repair of the Shoulder Joint Head for Hemiarthroplasty. J Biomed Nanotechnol 2021; 17:2142-2152. [PMID: 34906275 DOI: 10.1166/jbn.2021.3192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study aimed to develop osteogenic structure assembly for modular bone treatment presentations, effect of 2-(dimethylamino)ethyl methacrylate and polyvinyl pyrrolidone combination as cell adhesive molecule with hydroxyapatite-based composite as osteoconductive constituent was inspected on bone fracture repair. The prepared injectable composite hydrogel showed significantly improved mechanical stability. The ternary composite gel was characterized for functional group modifications and chemical interactions using Fourier-transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). Moreover, X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) analyses were performed to observe surface appearances of the hydrogel. The hydroxyapatite/2-(dimethylamino)ethyl methacrylate/poly-N-vinyl-2-pyrrolidone hydrogel played key role in supporting osteoblastic cell spread due to their bioactivity and strength abilities. The present findings revealed the significance of hydroxyapatite concentration on proliferation and osteogenic purpose of the cells. The developed performances of hydrogel have been improved cell proliferation and functions to repair bone fracture.
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Affiliation(s)
- Jiangnan Zhang
- Department of Joint Surgery, Wenling First People's Hospital, Wenling 317500, China
| | - Tingting Mo
- Department of Joint Surgery, Wenling First People's Hospital, Wenling 317500, China
| | - Meng Lin
- Department of Joint Surgery, Wenling First People's Hospital, Wenling 317500, China
| | - Zhengbiao Chen
- Department of Joint Surgery, Wenling First People's Hospital, Wenling 317500, China
| | - Chan Lian
- Department of Respiration, Wenling First People's Hospital, Wenling 317500, China
| | - Guiqin Zhang
- Department of Science and Education, Jinan People's Hospital, No. 1, Xuehu Street, Laiwu District, Jinan 271100, Shandong Province, China
| | - Jun Li
- Department of Joint Surgery, Wenling First People's Hospital, Wenling 317500, China
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47
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Synthesis and properties of stellate lactosamide quaternary ammonium surfactants. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127317] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Samavati A, Samavati Z, Velashjerdi M, Fauzi Ismail A, Othman MHD, Eisaabadi B G, Sohaimi Abdullah M, Bolurian M, Bolurian M. Sustainable and fast saliva-based COVID-19 virus diagnosis kit using a novel GO-decorated Au/FBG sensor. CHEMICAL ENGINEERING JOURNAL (LAUSANNE, SWITZERLAND : 1996) 2021; 420:127655. [PMID: 33199974 PMCID: PMC7654331 DOI: 10.1016/j.cej.2020.127655] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/19/2020] [Accepted: 09/22/2020] [Indexed: 05/14/2023]
Abstract
Monitoring the COVID-19 virus through patients' saliva is a favorable non-invasive specimen for diagnosis and infection control. In this study, salivary samples of COVID-19 patients collected from 6 patients with the median age of 58.5 years, ranging from 34 to 72 years (2 females and 4 males) were analyzed using an Au/fiber Bragg grating (FBG) probe decorated with GO. The probe measures the prevalence of positivity in saliva and the association between the virus density and changes to sensing elements. When the probe is immersed in patients' saliva, deviation of the detected light wavelength and intensity from healthy saliva indicate the presence of the virus and confirms infection. For a patient in the hyperinflammatory phase of desease, who has virus density of 1.2 × 108 copies/mL in saliva, the maximum wavelength shift and intensity changes after 1600 s were shown to be 1.12 nm and 2.01 dB, respectively. While for a patient in the early infection phase with 1.6 × 103 copies/mL, these values were 0.98 nm and 1.32 dB. The precise and highly sensitive FBG probe proposed in this study was found a reliable tool for quick detection of the COVID-19 virus within 10 s after exposure to patients' saliva in any stage of the disease.
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Affiliation(s)
- Alireza Samavati
- Advanced Membrane Technology Research Centre, Universiti Teknologi Malaysia (UTM), 81310 Johor Bahru, Malaysia
- Department of Materials Science and Engineering, Faculty of Engineering, Arak University, Arak 38156-8-8349, Iran
| | - Zahra Samavati
- Advanced Membrane Technology Research Centre, Universiti Teknologi Malaysia (UTM), 81310 Johor Bahru, Malaysia
| | - M Velashjerdi
- Department of Materials Science and Engineering, Faculty of Engineering, Arak University, Arak 38156-8-8349, Iran
| | - Ahmad Fauzi Ismail
- Advanced Membrane Technology Research Centre, Universiti Teknologi Malaysia (UTM), 81310 Johor Bahru, Malaysia
| | - M H D Othman
- Advanced Membrane Technology Research Centre, Universiti Teknologi Malaysia (UTM), 81310 Johor Bahru, Malaysia
| | - G Eisaabadi B
- Department of Materials Science and Engineering, Faculty of Engineering, Arak University, Arak 38156-8-8349, Iran
| | - Mohd Sohaimi Abdullah
- Advanced Membrane Technology Research Centre, Universiti Teknologi Malaysia (UTM), 81310 Johor Bahru, Malaysia
| | - Marzieh Bolurian
- Intensive Care Unit, Department of Infection Disease, Sina Hospital, 6517838695 Hamadan, Iran
| | - Mohammadreza Bolurian
- Department of Physical Education, Faculty of Humanities and Social Sciences, University of Kurdistan, 66177-15175 Sanandaj, Iran
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Hu L, Deng WJ, Ying GG, Hong H. Environmental perspective of COVID-19: Atmospheric and wastewater environment in relation to pandemic. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 219:112297. [PMID: 33991934 PMCID: PMC8086803 DOI: 10.1016/j.ecoenv.2021.112297] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 04/23/2021] [Accepted: 04/26/2021] [Indexed: 05/18/2023]
Abstract
The pandemic of coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is a major challenge to health systems worldwide. Recently, numbers of epidemiological studies have illustrated that climate conditions and air pollutants are associated with the COVID-19 confirmed cases worldwide. Researches also suggested that the SARS-CoV-2 could be detected in fecal and wastewater samples. These findings provided the possibility of preventing and controlling the COVID-19 pandemic from an environmental perspective. With this review, the main purpose is to summarize the relationship between the atmospheric and wastewater environment and COVID-19. In terms of the atmospheric environment, the evidence of the relationship between atmospheric environment (climate factors and air pollution) and COVID-19 is growing, but currently available data and results are various. It is necessary to comprehensively analyze their associations to provide constructive suggestions in responding to the pandemic. Recently, large numbers of studies have shown the widespread presence of this virus in wastewater and the feasibility of wastewater surveillance when the pandemic is ongoing. Therefore, there is an urgent need to clarify the occurrence and implication of viruses in wastewater and to understand the potential of wastewater-based epidemiology of pandemic. Overall, environmental perspective-based COVID-19 studies can provide new insight into pandemic prevention and control, and minimizes the economic cost for COVID-19 in areas with a large outbreak or a low economic level.
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Affiliation(s)
- Lixin Hu
- Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, N.T., Hong Kong, China; SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Wen-Jing Deng
- Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, N.T., Hong Kong, China; SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China.
| | - Guang-Guo Ying
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Huachang Hong
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
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50
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Gujar RK, Meena A, Chouhan SS, Likhar KS. Hematological profiles of COVID-19 patients at the Ratlam district, Madhya Pradesh State, India. Bioinformation 2021; 17:686-690. [PMID: 35283588 PMCID: PMC8882073 DOI: 10.6026/97320630017686] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/14/2021] [Accepted: 07/14/2021] [Indexed: 11/29/2022] Open
Abstract
It is of interest to compare the hematological profile (using Complete blood count) of COVID patients admitted in ICU, private ward, and isolation ward with varying severity. This data will help predict the severity of infection at peripheries and rural areas. Detailed history and CBC was performed for all the cases. Different ratios and indexes such as systemic inflammatory index (SII), Neutrophil lymphocyte ratio (NLR), platelet lymphocyte ratio (PLR) were assessed. A total of 862 cases with a mean age of 49.9 ±17.4 years were enrolled. Hemoglobin level, lymphocyte (count per liter and percentage) were significantly lower in patients admitted in ICU as compared to patients admitted in the isolation ward and private ward (p <0.05). However, TLC, neutrophils, platelet count were higher in patients admitted to ICU (p <0.05). The Various ratios such as SII, NLR, and PLR showed significantly higher value in cases admitted in ICU (p <0.05). The TLC, neutrophil count, neutrophil percentage, SII, NLR, and PLR were significant predictors of severe disease (admission in ICU) with high diagnostic accuracy. We show that complete blood count method is a simple, readily available, rapid, and inexpensive tool that can be utilized for diagnosis and can predicting the severity of COVID 19 where RTPCR or trained staff is not available. Thus, NLR (%), SII, PLR, and TLC can predict severe illness with high accuracy.
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Affiliation(s)
- Reetesh Kumar Gujar
- Department of Pathology, Government Medical College Ratlam, Madhya Pradesh 457001, India
| | - Anil Meena
- Department of Pathology, Government Medical College Ratlam, Madhya Pradesh 457001, India
| | | | - KS Likhar
- Department of Pathology, Government Medical College Ratlam, Madhya Pradesh 457001, India
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