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Vandana S, Muthu MS, Akila G, Anusha M, Kandaswamy D, Aswath Narayanan MB. Global variations in eruption chronology of permanent teeth: A systematic review and meta-analysis. Am J Hum Biol 2024:e24060. [PMID: 38426348 DOI: 10.1002/ajhb.24060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 12/26/2023] [Accepted: 02/22/2024] [Indexed: 03/02/2024] Open
Abstract
OBJECTIVES Population-based variations have been reported in permanent teeth eruption but only sparse literature exists on the same. A systematic review and meta-analysis were performed to assess the global variations in eruption chronology of permanent teeth in children and adolescents and the role of sexes, jaws and classes of socio-economic status (SES) on timing of eruption was explored. METHODS The protocol for the systematic review was registered in PROSPERO. An extensive search of PubMed, EMBASE, Google Scholar, EBSCO, Cochrane library, and anthropology databases was carried out until April 2023. Additionally, grey literature search and hand-searching of relevant key journals was done. RESULTS Overall, 3797 cross-sectional and longitudinal studies were retrieved from multiple databases. A total of 939, 191 participants were included from 80 studies of which, 41 were carried out in Asia, 26 in Europe, 5 in Africa, 4 in North America, and 4 in Oceania. The mandibular first molar eruption was found to be as early as 4.09 years while the maxillary second molar erupted as late as 13.45 years. Using a random effects model, 28 forest plots were generated. Meta-regression interpreted tooth eruption to be earlier in females and in the mandible. CONCLUSIONS The findings of this study show that the ages of permanent teeth eruption was advanced in the European population followed by Africa and Asia.
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Affiliation(s)
- S Vandana
- Department of Oral Pathology and Microbiology, Sri Ramachandra Dental College and Hospital, Sri Ramachandra Institute of Higher Education and Research (SRIHER), Chennai, Tamil Nadu, India
| | - M S Muthu
- Department of Pediatric Dentistry, Centre for Early Childhood Caries Research (CECCRe), Sri Ramachandra Dental College and Hospital, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
- Centre of Medical and Bio-Allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates
| | - G Akila
- Department of Public Health Dentistry, Sri Ramachandra Dental College and Hospital, Sri Ramachandra Institute of Higher Education and Research (SRIHER), Chennai, Tamil Nadu, India
| | - M Anusha
- Department of Pediatric Dentistry, Sri Ramachandra Dental College and Hospital, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
| | - D Kandaswamy
- Sri Ramachandra Dental College and Hospital, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
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Muthu MS, Vandana S, Akila G, Anusha M, Kandaswamy D, Aswath Narayanan MB. Global variations in eruption chronology of primary teeth: A systematic review and meta-analysis. Arch Oral Biol 2024; 158:105857. [PMID: 38128337 DOI: 10.1016/j.archoralbio.2023.105857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 10/12/2023] [Accepted: 11/25/2023] [Indexed: 12/23/2023]
Abstract
OBJECTIVES This systematic review aimed to assess global variations in the eruption chronology of primary teeth in children and the role of sexes, jaws, and socio-economic status on eruption timing. DESIGN An extensive search of electronic databases, grey literature, and hand-searching was carried out until April 2023 RESULTS: A total of 42,109 children, with an age range of 0-83 months were included from 42 studies (22 in Asia, 7 in Europe, 5 in Africa, 4 in North America, 3 in Oceania and 1 in South America). The mandibular central incisor was the first tooth to erupt at 6 months in North America and 13.5 months in Asia while the mandibular second molar erupted at 20.1 months in Europe and 29 months in South America. CONCLUSIONS The age of primary teeth eruption was advanced in the European population followed by North America, Africa, Oceania, and Asia while it was delayed in the South American population. Meta-analysis showed that tooth eruption was earlier in the left quadrant than the right but the role of other factors (sexes, jaws, and socio-economic status) was insignificant. Population-specific data on primary teeth emergence may serve as a baseline for future research. In clinical practice, these population-based eruption charts can serve as a valuable asset for diagnosis and treatment planning in children.
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Affiliation(s)
- M S Muthu
- Centre for Early Childhood Caries Research (CECCRe), Department of Pediatric Dentistry, Sri Ramachandra Dental College and Hospital, Sri Ramachandra Institute of Higher Education and Research, Porur, Chennai, Tamil Nadu, India; Centre of Medical and Bio-Allied Health Sciences Research, Ajman University, United Arab Emirates
| | - S Vandana
- Department of Oral Pathology and Microbiology, Sri Ramachandra Dental College and Hospital, Sri Ramachandra Institute of Higher Education and Research (SRIHER), Porur, Chennai 600116, Tamil Nadu, India.
| | - G Akila
- Department of Public Health Dentistry, Sri Ramachandra Dental College and Hospital, Sri Ramachandra Institute of Higher Education and Research (SRIHER), Porur, Chennai 600116, Tamil Nadu, India
| | - M Anusha
- Department of Pediatric Dentistry, Sri Ramachandra Dental College and Hospital, Sri Ramachandra Institute of Higher Education and Research, Porur, Chennai, Tamil Nadu, India
| | - D Kandaswamy
- Sri Ramachandra Dental College and Hospital, Sri Ramachandra Institute of Higher Education and Research, Porur, Chennai, Tamil Nadu, India
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Anusha M, Tejaswini V, Udhaya Kumar S, Prashantha CN, Vasudevan K, George Priya Doss C. Gene network interaction analysis to elucidate the antimicrobial resistance mechanisms in the Clostridiumdifficile. Microb Pathog 2023; 178:106083. [PMID: 36958645 DOI: 10.1016/j.micpath.2023.106083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 03/21/2023] [Accepted: 03/21/2023] [Indexed: 03/25/2023]
Abstract
Antimicrobial resistance has caused chaos worldwide due to the depiction of multidrug-resistant (MDR) infective microorganisms. A thorough examination of antimicrobial resistance (AMR) genes and associated resistant mechanisms is vital to solving this problem. Clostridium difficile (C. difficile) is an opportunistic nosocomial bacterial strain that has acquired exogenous AMR genes that confer resistance to antimicrobials such as erythromycin, azithromycin, clarithromycin, rifampicin, moxifloxacin, fluoroquinolones, vancomycin, and others. A network of interactions, including 20 AMR genes, was created and analyzed. In functional enrichment analysis, Cellular components (CC), Molecular Functions (MF), and Biological Processes (BP) were discovered to have substantial involvement. Mutations in the rpl genes, which encode ribosomal proteins, confer resistance in Gram-positive bacteria. Full erythromycin and azithromycin cross-resistance can be conferred if more than one of the abovementioned genes is present. In the enriched BP, rps genes related to transcriptional regulation and biosynthesis were found. The genes belong to the rpoB gene family, which has previously been related to rifampicin resistance. The genes rpoB, gyrA, gyrB, rpoS, rpl genes, rps genes, and Van genes are thought to be the hub genes implicated in resistance in C. difficile. As a result, new medications could be developed using these genes. Overall, our observations provide a thorough understanding of C. difficile AMR mechanisms.
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Affiliation(s)
- M Anusha
- Department of Biotechnology, School of Applied Sciences, REVA University, Bengaluru, 560064, India
| | - V Tejaswini
- Department of Biotechnology, School of Applied Sciences, REVA University, Bengaluru, 560064, India
| | - S Udhaya Kumar
- Laboratory of Integrative Genomics, Department of Integrative Biology, School of BioSciences and Technology, Vellore Institute of Technology (VIT), Vellore, India
| | - C N Prashantha
- Department of Biotechnology, School of Applied Sciences, REVA University, Bengaluru, 560064, India
| | - Karthick Vasudevan
- Department of Biotechnology, School of Applied Sciences, REVA University, Bengaluru, 560064, India.
| | - C George Priya Doss
- Laboratory of Integrative Genomics, Department of Integrative Biology, School of BioSciences and Technology, Vellore Institute of Technology (VIT), Vellore, India.
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Anupama Kumar S, Anusha M. Blockchain Enabled Supply Chain Management. SN Comput Sci 2023; 4:179. [PMID: 36711045 PMCID: PMC9869831 DOI: 10.1007/s42979-022-01621-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 12/17/2022] [Indexed: 01/25/2023]
Abstract
A distribution network is a mechanism that links a company and its suppliers to create and distribute a product to the end customer. This network is made up of numerous activities including people, entities, knowledge, and assets. The distribution network also represents the steps taken to get a good or service out of its inception to the customer. A supply chain links a company and its suppliers to create and distribute a product to the end customer. This network is made up of numerous actions, persons, entities, knowledge, and resources. The distribution network also represents the steps taken to get a service or product from its inception to the customer. Blockchain allows all parties in a supply chain to access the same data, potentially reducing communications or data transfer issues. Less time to be spent on data confirmation and more time can be spent on providing goods and services quality, cutting prices, or both. Blockchain allows all parties in a supply chain to access the same information, potentially reducing connection or data transfer issues. Less time that could be spent on data confirmation and more time could be spent on delivering products or services quality, cutting prices, or both. This article takes a broad look at how blockchain might assist manage supply chains. Also discussed is how a crypto supply network outperforms a supply chain.
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Affiliation(s)
- S. Anupama Kumar
- grid.444321.40000 0004 0501 2828Department of MCA, RV College of Engineering, Bangalore, India
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Anusha M, Venkateswarlu M, Prabhakaran V, Taj SS, Kumari BP, Ranganayakulu D. Hepatoprotective activity of aqueous extract of Portulaca oleracea in combination with lycopene in rats. Indian J Pharmacol 2011; 43:563-7. [PMID: 22022001 PMCID: PMC3195128 DOI: 10.4103/0253-7613.84973] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2010] [Revised: 07/13/2010] [Accepted: 07/01/2011] [Indexed: 12/04/2022] Open
Abstract
Objective: To investigate the hepatoprotective activity of the aqueous extract of the aerial parts of Portulaca oleracea (P. oleracea) in combination with lycopene against carbon tetrachloride induced hepatotoxicity in rats. Materials and Methods: Hepatotoxicity was induced in male Wistar rats by intraperitoneal injection of carbon tetrachloride (0.1 ml/kg b.w for 14 days). The aqueous extract of P. oleracea in combination with lycopene (50 mg/kg b.w) was administered to the experimental animals at two selected doses for 14 days. The hepatoprotective activity of the combination was evaluated by the liver function marker enzymes in the serum [aspartate transaminases (AST), alanine transaminases (ALT), alkaline phosphatase (Alk.P), total bilirubin (TB), total protein (TP) and total cholesterol (TC)], pentobarbitone induced sleeping time (PST) and histopathological studies of liver. Results: Both the treatment groups showed hepatoprotective effect against carbon tetrachloride induced hepatotoxicity by significantly restoring the levels of serum enzymes to normal which was comparable to that of silymarin group. Besides, the results obtained from PST and histopathological results also support the study. Conclusions: The oral administration of P. oleracea in combination with lycopene significantly ameliorates CCl4 hepatotoxicity in rats.
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Affiliation(s)
- M Anusha
- Sri Padmavathi School of Pharmacy, Tiruchanoor, Tirupathi - 517 503, India
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