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Hassan D, Zahra T, Kanaan G, Khan MU, Mushtaq K, Nashwan AJ, Hamid PF. The Impact of Gut Microbiome Constitution to Reduce Cardiovascular Disease Risk: A Systematic Review and Meta-Analysis. Curr Probl Cardiol 2023; 48:101459. [PMID: 36261101 DOI: 10.1016/j.cpcardiol.2022.101459] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 10/13/2022] [Indexed: 01/04/2023]
Affiliation(s)
- Danial Hassan
- Department of Healthcare Profession ((DHP), Ministry of Public Health, Qatar / ECPE, Harvard TH Chan School of Public Health, USA; ECPE, Harvard TH Chan School of Public Health, Boston, MA.
| | - Tatheer Zahra
- Department of Pediatrics, Allied Hospital, Faisalabad, Pakistan
| | - Ghid Kanaan
- California Institute of Behavioral Neurosciences and Psychology, USA
| | | | - Kamran Mushtaq
- Department of Gastroenterology Southampton NHS Foundation Trust, Southampton, Hampshire, UK
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Patidar P, Prakash T. Decoding the roles of extremophilic microbes in the anaerobic environments: Past, Present, and Future. CURRENT RESEARCH IN MICROBIAL SCIENCES 2022; 3:100146. [PMID: 35909618 PMCID: PMC9325894 DOI: 10.1016/j.crmicr.2022.100146] [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: 12/27/2021] [Revised: 06/11/2022] [Accepted: 06/13/2022] [Indexed: 12/03/2022] Open
Abstract
The inaccessible extreme environments harbor a large majority of anaerobic microbes which remain unknown. Anaerobic microbes are used in a variety of industrial applications. In the future, metagenomic-assisted techniques can be used to identify novel anaerobic microbes from the unexplored extreme environments. Genetic engineering can be used to enhance the efficiency of anaerobic microbes for various processes.
The genome of an organism is directly or indirectly correlated with its environment. Consequently, different microbes have evolved to survive and sustain themselves in a variety of environments, including unusual anaerobic environments. It is believed that their genetic material could have played an important role in the early evolution of their existence in the past. Presently, out of the uncountable number of microbes found in different ecosystems we have been able to discover only one percent of the total communities. A large majority of the microbial populations exists in the most unusual and extreme environments. For instance, many anaerobic bacteria are found in the gastrointestinal tract of humans, soil, and hydrothermal vents. The recent advancements in Metagenomics and Next Generation Sequencing technologies have improved the understanding of their roles in these environments. Presently, anaerobic bacteria are used in various industries associated with biofuels, fermentation, production of enzymes, vaccines, vitamins, and dairy products. This broad applicability brings focus to the significant contribution of their genomes in these functions. Although the anaerobic microbes have become an irreplaceable component of our lives, a major and important section of such anaerobic microbes still remain unexplored. Therefore, it can be said that unlocking the role of the microbial genomes of the anaerobes can be a noteworthy discovery not just for mankind but for the entire biosystem as well.
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Affiliation(s)
- Pratyusha Patidar
- School of Basic Sciences, Indian Institute of Technology (IIT) Mandi, HP, India
| | - Tulika Prakash
- School of Basic Sciences, Indian Institute of Technology (IIT) Mandi, HP, India
- Corresponding author.
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Kang GU, Jung DR, Lee YH, Jeon SY, Han HS, Chong GO, Shin JH. Dynamics of Fecal Microbiota with and without Invasive Cervical Cancer and Its Application in Early Diagnosis. Cancers (Basel) 2020; 12:cancers12123800. [PMID: 33339445 PMCID: PMC7766064 DOI: 10.3390/cancers12123800] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/10/2020] [Accepted: 12/10/2020] [Indexed: 02/06/2023] Open
Abstract
Simple Summary The fecal microbiome has been suggested to be linked to invasive cervical cancer (ICC). Considering that ICC is common in women, it is important to identify bacterial signatures from fecal microbiota that contribute in classifying cervical cancer. Although previous studies have suggested possible biomarkers based on fecal microbiota, limited information exists in terms of the diagnostic ability using gut microbiota-derived signatures for detecting early ICC. The purpose of this study was to investigate the potential association between early ICC and fecal microbiota and to examine whether fecal microbiota-derived markers can be utilized as a non-invasive tool to diagnose early ICC using machine learning (ML) techniques. Further studies to incorporate quantitative and qualitative characterization of identified individual bacterial genus and validate our model in larger cohorts are imperative in terms of causality for the association between cervical cancer and microbes. Abstract The fecal microbiota is being increasingly implicated in the diagnosis of various diseases. However, evidence on changes in the fecal microbiota in invasive cervical cancer (ICC) remains scarce. Here, we aimed to investigate the fecal microbiota of our cohorts, develop a diagnostic model for predicting early ICC, and identify potential fecal microbiota-derived biomarkers using amplicon sequencing data. We obtained fecal samples from 29 healthy women (HC) and 17 women with clinically confirmed early ICC (CAN). Although Shannon’s diversity index was not reached at statistical significance, the Chao1 and Observed operational taxonomic units (OTUs) in fecal microbiota was significantly different between CAN and HC group. Furthermore, there were significant differences in the taxonomic profiles between HC and CAN; Prevotella was significantly more abundant in the CAN group and Clostridium in the HC group. Linear discriminant analysis effect size (LEfSe) analysis was applied to validate the taxonomic differences at the genus level. Furthermore, we identified a set of seven bacterial genera that were used to construct a machine learning (ML)-based classifier model to distinguish CAN from patients with HC. The model had high diagnostic utility (area under the curve [AUC] = 0.913) for predicting early ICC. Our study provides an initial step toward exploring the fecal microbiota and helps clinicians diagnose.
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Affiliation(s)
- Gi-Ung Kang
- Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Korea
| | - Da-Ryung Jung
- Department of Biomedical Convergence Science & Technology, Kyungpook National University, Daegu 41566, Korea
| | - Yoon Hee Lee
- Department of Obstetrics and Gynecology, School of Medicine, Kyungpook National University, Daegu 41404, Korea
- Department of Obstetrics and Gynecology, Kyungpook National University Chilgok Hospital, Daegu 41404, Korea
- Clinical Omics Research Center, School of Medicine, Kyungpook National University, Daegu 41940, Korea
| | - Se Young Jeon
- Department of Obstetrics and Gynecology, Kyungpook National University Chilgok Hospital, Daegu 41404, Korea
- Clinical Omics Research Center, School of Medicine, Kyungpook National University, Daegu 41940, Korea
| | - Hyung Soo Han
- Clinical Omics Research Center, School of Medicine, Kyungpook National University, Daegu 41940, Korea
- Department of Physiology, School of Medicine, Kyungpook National University, Daegu 41405, Korea
| | - Gun Oh Chong
- Department of Obstetrics and Gynecology, School of Medicine, Kyungpook National University, Daegu 41404, Korea
- Department of Obstetrics and Gynecology, Kyungpook National University Chilgok Hospital, Daegu 41404, Korea
- Clinical Omics Research Center, School of Medicine, Kyungpook National University, Daegu 41940, Korea
| | - Jae-Ho Shin
- Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Korea
- Department of Biomedical Convergence Science & Technology, Kyungpook National University, Daegu 41566, Korea
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