Journal of Microbiology

Minireview

Advances in functional analysis of the microbiome: Integrating metabolic modeling, metabolite prediction, and pathway inference with Next-Generation Sequencing data: Sungwon Jung; J. Microbiol. 2025;63(1):e.2411006. Published online January 24, 2025; DOI: https://doi.org/10.71150/jm.2411006

556 View
71 Download

Abstract PDF: This review explores current advancements in microbiome functional analysis enabled by next-generation sequencing technologies, which have transformed our understanding of microbial communities from mere taxonomic composition to their functional potential. We examine approaches that move beyond species identification to characterize microbial activities, interactions, and their roles in host health and disease. Genome-scale metabolic models allow for in-depth simulations of metabolic networks, enabling researchers to predict microbial metabolism, growth, and interspecies interactions in diverse environments. Additionally, computational methods for predicting metabolite profiles offer indirect insights into microbial metabolic outputs, which is crucial for identifying biomarkers and potential therapeutic targets. Functional pathway analysis tools further reveal microbial contributions to metabolic pathways, highlighting alterations in response to environmental changes and disease states. Together, these methods offer a powerful framework for understanding the complex metabolic interactions within microbial communities and their impact on host physiology. While significant progress has been made, challenges remain in the accuracy of predictive models and the completeness of reference databases, which limit the applicability of these methods in under-characterized ecosystems. The integration of these computational tools with multi-omic data holds promise for personalized approaches in precision medicine, allowing for targeted interventions that modulate the microbiome to improve health outcomes. This review highlights recent advances in microbiome functional analysis, providing a roadmap for future research and translational applications in human health and environmental microbiology.

Journal Articles

Lactobacillus gasseri BNR17 and Limosilactobacillus fermentum ABF21069 Ameliorate High Sucrose-Induced Obesity and Fatty Liver via Exopolysaccharide Production and β-oxidation: Yu Mi Jo, Yoon Ji Son, Seul-Ah Kim, Gyu Min Lee, Chang Won Ahn, Han-Oh Park, Ji-Hyun Yun; J. Microbiol. 2024;62(10):907-918. Published online October 17, 2024; DOI: https://doi.org/10.1007/s12275-024-00173-6

43 View
0 Download

Abstract: Obesity and metabolic dysfunction-associated fatty liver disease (MAFLD) are prevalent metabolic disorders with substantial global health implications that are often inadequately addressed by current treatments and may have side effects. Probiotics have emerged as promising therapeutic agents owing to their beneficial effects on gut health and metabolism. This study investigated the synergistic effects of a probiotic combination of BNR17 and ABF21069 on obesity and MAFLD in C57BL/6 mice fed a high-sucrose diet. The probiotic combination significantly reduced body weight and fat accumulation compared with the high-sucrose diet. It also alleviated elevated serum leptin levels induced by a high-sucrose diet. Histological analysis revealed a significant reduction in white adipose tissue and fatty liver in the mice treated with the probiotic combination. Furthermore, increased expression of genes related to β-oxidation, thermogenesis, and lipolysis suggested enhanced metabolic activity. The probiotic groups, particularly the BNR17 group, showed an increase in fecal exopolysaccharides, along with a tendency toward a lower expression of intestinal sugar transport genes, indicating reduced sugar absorption. Additionally, inflammatory markers in the liver tissue exhibited lower expression in the ABF21069 group than in the HSD group. Despite each strain in the combination group having distinct characteristics and functions, their combined effect demonstrated synergy in mitigating obesity and MAFLD, likely through the modulation of fecal exopolysaccharides content and improvement in lipid metabolism. These findings underscore the potential of probiotic supplementation as a promising assistant therapy for managing obesity and MAFLD and provide valuable insights into its therapeutic mechanisms in metabolic disorders.

In Silico Intensive Analysis for the E4 Gene Evolution of Human Adenovirus Species D: Chanhee Lee, Anyeseu Park, Jeong Yoon Lee; J. Microbiol. 2024;62(5):409-418. Published online April 30, 2024; DOI: https://doi.org/10.1007/s12275-024-00132-1

50 View
0 Download

Abstract: Adenovirus (Ad) is a ubiquitous pathogen capable of infecting a wide range of animals and humans. Human Adenovirus (HAdV) can cause severe infection, particularly in individuals with compromised immune systems. To date, over 110 types of HAdV have been classified into seven species from A to G, with the majority belonging to the human adenovirus species D (HAdV-D). In the HAdV-D, the most significant factor for the creation of new adenovirus types is homologous recombination between viral genes involved in determining the virus tropism or evading immune system of host cells. The E4 gene, consisting of seven Open Reading Frames (ORFs), plays a role in both the regulation of host cell metabolism and the replication of viral genes. Despite long-term studies, the function of each ORF remains unclear. Based on our updated information, ORF2, ORF3, and ORF4 have been identified as regions with relatively high mutations compared to other ORFs in the E4 gene, through the use of in silico comparative analysis. Additionally, we managed to visualize high mutation sections, previously undetectable at the DNA level, through a powerful amino acid sequence analysis tool known as proteotyping. Our research has revealed the involvement of the E4 gene in the evolution of human adenovirus, and has established accurate sequence information of the E4 gene, laying the groundwork for further research.

Vaginal Microbiome Dysbiosis is Associated with the Different Cervical Disease Status: Yingying Ma , Yanpeng Li , Yanmei Liu , Le Cao , Xiao Han , Shujun Gao , Chiyu Zhang; J. Microbiol. 2023;61(4):423-432. Published online April 3, 2023; DOI: https://doi.org/10.1007/s12275-023-00039-3

59 View
0 Download
7 Web of Science
4 Crossref

Abstract

Vaginal microbiome composition was demonstrated to be associated with cervical disease. The colonization characteristics of vaginal microbes and their association with the different cervical disease status, especially cervical cancer (CC), are rarely investigated. In this cross-sectional study, we characterized the vaginal microbiome of women with different status of cervical diseases, including 22 NV + (normal tissue with HPV infection), low-grade squamous intraepithelial lesion (LSIL, n = 45), high-grade squamous intraepithelial lesion (HSIL, n = 36) and CC (n = 27) using bacterial 16S DNA sequencing. Thirty HPV-negative women with normal tissue were used as the control group. We found that higher diversity of microbiome with gradual depletion of Lactobacillus, especially L. crispatus, was associated with the severity of cervical disease. High-risk HPV16 infection was associated with higher microbiome diversity and depletion of Lactobacillus in high-grade cervical diseases (i.e. HSIL and CC). The CC group was characterized by higher levels of Fannyhessea vaginae, Prevotella, Bacteroides, Finegoldia, Vibrio, Veillonella, Peptostreptococcus, and Dialister. Co-occurrence network analyses showed that negative correlations were exclusively observed between Lactobacillus and other bacteria, and almost all non-Lactobacillus bacteria were positively correlated with each other. In particular, the most diverse and complex co-occurrence network of vaginal bacteria, as well as a complete loss of L. crispatus, was observed in women with CC. Logistic regression model identified HPV16 and Lactobacillus as significant risk and protective factors for CC, respectively. These results suggest that specific Lactobacillus species (e.g. L. crispatus and L. iners) can be used as important markers to target prevention measures prioritizing HPV16-infected women and other hrHPV-infected women for test, vaccination and treat initiatives.

Citations

Citations to this article as recorded by

Vaginal Microbiome and Pregnancy Complications: A Review
Angeliki Gerede, Konstantinos Nikolettos, Eleftherios Vavoulidis, Chrysoula Margioula-Siarkou, Stamatios Petousis, Maria Giourga, Panagiotis Fotinopoulos, Maria Salagianni, Sofoklis Stavros, Konstantinos Dinas, Nikolaos Nikolettos, Ekaterini Domali
Journal of Clinical Medicine.2024; 13(13): 3875. CrossRef
Advancements in the Vaginal Microenvironment and Regression of High-Risk Human Papillomavirus
Na He, Cunjian Yi, Qingsong Zeng, Wumei Jing, Wenrong He
Indian Journal of Microbiology.2024;[Epub] CrossRef
Research Progress on Related Factors of Cervical High-Grade Squamous Intraepithelial Lesions
红颖王
Advances in Clinical Medicine.2023; 13(12): 20536. CrossRef
Role of the vaginal microbiome in miscarriage: exploring the relationship
Marwa Saadaoui, Parul Singh, Osman Ortashi, Souhaila Al Khodor
Frontiers in Cellular and Infection Microbiology.2023;[Epub] CrossRef

Review

Manganese Transporter Proteins in Salmonella enterica serovar Typhimurium: Nakyeong Ha , Eun-Jin Lee; J. Microbiol. 2023;61(3):289-296. Published online March 2, 2023; DOI: https://doi.org/10.1007/s12275-023-00027-7

74 View
0 Download
8 Web of Science
8 Crossref

Abstract

The metal cofactors are essential for the function of many enzymes. The host restricts the metal acquisition of pathogens for their immunity and the pathogens have evolved many ways to obtain metal ions for their survival and growth. Salmonella enterica serovar Typhimurium also needs several metal cofactors for its survival, and manganese has been found to contribute to Salmonella pathogenesis. Manganese helps Salmonella withstand oxidative and nitrosative stresses. In addition, manganese affects glycolysis and the reductive TCA, which leads to the inhibition of energetic and biosynthetic metabolism. Therefore, manganese homeostasis is crucial for full virulence of Salmonella. Here, we summarize the current information about three importers and two exporters of manganese that have been identified in Salmonella. MntH, SitABCD, and ZupT have been shown to participate in manganese uptake. mntH and sitABCD are upregulated by low manganese concentration, oxidative stress, and host NRAMP1 level. mntH also contains a Mn2+- dependent riboswitch in its 5′ UTR. Regulation of zupT expression requires further investigation. MntP and YiiP have been identified as manganese efflux proteins. mntP is transcr!ptionally activated by MntR at high manganese levels and repressed its activity by MntS at low manganese levels. Regulation of yiiP requires further analysis, but it has been shown that yiiP expression is not dependent on MntS. Besides these five transporters, there might be additional transporters that need to be identified.

Citations

Citations to this article as recorded by

Functional characterization of a TerC family protein of Riemerella anatipestifer in manganese detoxification and virulence
Qinyuan Chen, Fang Guo, Li Huang, Mengying Wang, Chunfeng Shi, Shutong Zhang, Yizhou Yao, Mingshu Wang, Dekang Zhu, Renyong Jia, Shun Chen, Xinxin Zhao, Qiao Yang, Ying Wu, Shaqiu Zhang, Bin Tian, Juan Huang, Xumin Ou, Qun Gao, Di Sun, Ling Zhang, Yanling
Applied and Environmental Microbiology.2024;[Epub] CrossRef
NO enhances the adaptability to high-salt environments by regulating osmotic balance, antioxidant defense, and ion homeostasis in eelgrass based on transcriptome and metabolome analysis
Xianyan Wang, Tongtong Wang, Pei Yu, Yuchun Li, Xinfang Lv
Frontiers in Plant Science.2024;[Epub] CrossRef
High-throughput fitness experiments reveal specific vulnerabilities of human-adapted Salmonella during stress and infection
Benjamin X. Wang, Dmitry Leshchiner, Lijuan Luo, Miles Tuncel, Karsten Hokamp, Jay C. D. Hinton, Denise M. Monack
Nature Genetics.2024; 56(6): 1288. CrossRef
Biological characteristics of manganese transporter MntP in Klebsiella pneumoniae
Wei Peng, Yafei Xu, Yilin Yin, Jichen Xie, Renhui Ma, Guoyuan Song, Zhiqiang Zhang, Qiuhang Quan, Qinggen Jiang, Moran Li, Bei Li, Michael David Leslie Johnson
mSphere.2024;[Epub] CrossRef
Exploring resource competition by protective lactic acid bacteria cultures to control Salmonella in food: an Achilles’ heel to target?
Ludovico Screpanti, Nathalie Desmasures, Margot Schlusselhuber
Critical Reviews in Food Science and Nutrition.2024; : 1. CrossRef
Substrate-Induced Structural Dynamics and Evolutionary Linkage of Siderophore-Iron ABC Transporters of Mycobacterium tuberculosis
Aisha Farhana, Abdullah Alsrhani, Hasan Ejaz, Muharib Alruwaili, Ayman A. M. Alameen, Emad Manni, Zafar Rasheed, Yusuf Saleem Khan
Medicina.2024; 60(11): 1891. CrossRef
Structures and coordination chemistry of transporters involved in manganese and iron homeostasis
Shamayeeta Ray, Rachelle Gaudet
Biochemical Society Transactions.2023; 51(3): 897. CrossRef
Bacterial Regulatory Mechanisms for the Control of Cellular Processes: Simple Organisms’ Complex Regulation
Jin-Won Lee
Journal of Microbiology.2023; 61(3): 273. CrossRef

Journal Articles

Characterization of antibiotic-resistant, coagulase-negative staphylococci from fresh produce and description of Staphylococcus shinii sp. nov. isolated from chives: Gyu-Sung Cho , Bo Li , Erik Brinks , Charles , M.A.P. Franz; J. Microbiol. 2022;60(9):877-889. Published online June 22, 2022; DOI: https://doi.org/10.1007/s12275-022-2100-5

67 View
0 Download
6 Web of Science
6 Crossref

Abstract

Coagulase-negative Staphylococcus (CoNS) species may possess antibiotic resistance genes and have been associated with nosocomial infections. In this study, 91 CoNS with decreased susceptibility to oxacillin were isolated from fresh produce using oxacillin containing agar plates. Their antibiotic resistances were determined phenotypically and all isolates were identified by rep-PCR, 16S rRNA and rpoB gene sequencing. Furthermore, the genomes of representative strains were sequenced in order to confirm species identification by phylogenomics. The majority (64 of 91) of the CoNS strains could be identified as Mammaliicoccus (M.) fleurettii, while 13 were identified as M. sciuri, 8 as M. vitulinus, 2 as Staphylococcus (S.) epidermidis and single strains each as S. warneri, S. xylosus, Staphylococcus spp. and S. casei. Most of the strains were generally susceptible to clinically-relevant antibiotics, but only few (< 7%) strains possessed multiple resistances. Both oxacillin and cefoxitin resistant isolates were considered to be presumptive methicillin-resistant CoNS. From whole genome sequencing data of 6 representative strains, the mecA gene, accessory genes and the SCC loci were compared, which revealed high variability between some of the strains. The major fatty acids of K22-5MT strain included anteiso-C15:0, iso-C15:0, iso-C17:0, anteiso-C17:0, C18:0, and C20:0. Average nucleotide identity and digital DNA-DNA hybridization values indicated that Staphylococcus strain K22-5MT was below the species delineation cutoff values for ANI (less than 91%) and DDH (less than 44.4%), with the most closely related species being the S. pseudoxylosus S04009T type strain. Thus, strain K22- 5MT (=DSM 112532T, =LMG 32324T) represents a novel species, for which the name Staphylococcus shinii sp. nov. is proposed.

Citations

Citations to this article as recorded by

Microbial agents for the control of ticks Rhipicephalus microplus
Edgar Castro-Saines, Rodolfo Lagunes-Quintanilla, Rubén Hernández-Ortiz
Parasitology Research.2024;[Epub] CrossRef
Scandinavium lactucae sp. nov. Isolated from Healthy Lettuce in South Korea
Jiwon Park, Sieun Park, Kwang-Kyo Oh, Charles M. A. P. Franz, Gyu-Sung Cho
Current Microbiology.2024;[Epub] CrossRef
Efficacy of Entomopathogenic Staphylococcus Bacteria as a Biocontrol Agent against Rhipicephalus microplus Ticks: Assessing Reproductive Inhibition and Mortality Rates
Raquel Cossio-Bayugar, Cesar A. Arreguin-Perez, Hugo Aguilar-Diaz, Estefan Miranda-Miranda
Microorganisms.2024; 12(3): 551. CrossRef
Genomic exploration of the fermented meat isolate Staphylococcus shinii IMDO-S216 with a focus on competitiveness-enhancing secondary metabolites
Ana Sosa-Fajardo, Cristian Díaz-Muñoz, David Van der Veken, Inés Pradal, Marko Verce, Stefan Weckx, Frédéric Leroy
BMC Genomics.2024;[Epub] CrossRef
Staphylococcus hsinchuensis sp. nov., Isolated from Soymilk
Yu-Ting Wang, Yu-Chun Lin, Yi-Huei Hsieh, Yu-Tzu Lin, Moriyuki Hamada, Chih-Chieh Chen, Jong-Shian Liou, Ai-Yun Lee, Wei-Ling Zhang, Yung-Tsung Chen, Chien-Hsun Huang
Pathogens.2024; 13(4): 343. CrossRef
Validation List no. 209. Valid publication of new names and new combinations effectively published outside the IJSEM
Aharon Oren, Markus Göker
International Journal of Systematic and Evolutionary Microbiology .2023;[Epub] CrossRef

Pat- and Pta-mediated protein acetylation is required for horizontallyacquired virulence gene expression in Salmonella Typhimurium: Hyojeong Koo , Eunna Choi , Shinae Park , Eun-Jin Lee , Jung-Shin Lee; J. Microbiol. 2022;60(8):823-831. Published online May 27, 2022; DOI: https://doi.org/10.1007/s12275-022-2095-y

51 View
0 Download
2 Web of Science
1 Crossref

Abstract

Salmonella Typhimurium is a Gram-negative facultative pathogen that causes a range of diseases, from mild gastroenteritis to severe systemic infection in a variety of animal hosts. S. Typhimurium regulates virulence gene expression by a silencing mechanism using nucleoid-associated proteins such as Histone-like Nucleoid Structuring protein (H-NS) silencing. We hypothesize that the posttranslational modification, specifically protein acetylation, of proteins in gene silencing systems could affect the pathogenic gene expression of S. Typhimurium. Therefore, we created acetylation-deficient mutant by deleting two genes, pat and pta, which are involved in the protein acetylation pathway. We observed that the pat and pta deletion attenuates mouse virulence and also decreases Salmonella’s replication within macrophages. In addition, the Δpat Δpta strain showed a decreased expression of the horizontally-acquired virulence genes, mgtC, pagC, and ugtL, which are highly expressed in low Mg2+. The decreased virulence gene expression is possibly due to higher H-NS occupancy to those promoters because the pat and pta deletion increases H-NS occupancy whereas the same mutation decreases occupancy of RNA polymerase. Our results suggest that Pat- and Pta-mediated protein acetylation system promotes the expression of virulence genes by regulating the binding affinity of H-NS in S. Typhimurium.

Citations

Citations to this article as recorded by

Multi-Lasso Peptide-Based Synergistic Nanocomposite: A High-Stability, Broad-Spectrum Antimicrobial Agent with Potential for Combined Antibacterial Therapy
Yu Li, Jinyu Zhang, Ke Wei, Di Zhou, Zepeng Wang, Zhiwei Zeng, Yu Han, Weisheng Cao
ACS Nano.2024; 18(45): 31435. CrossRef

Gamma-glutamyltransferase of Helicobacter pylori alters the proliferation, migration, and pluripotency of mesenchymal stem cells by affecting metabolism and methylation status: Zeyu Wang , Weijun Wang , Huiying Shi , Lingjun Meng , Xin Jiang , Suya Pang , Mengke Fan , Rong Lin; J. Microbiol. 2022;60(6):627-639. Published online April 18, 2022; DOI: https://doi.org/10.1007/s12275-022-1575-4

56 View
0 Download
7 Web of Science
5 Crossref

Abstract

Virulence factor gamma-glutamyltransferase (GGT) of H. pylori consumes glutamine (Gln) in the stomach to decrease the tricarboxylic acid metabolite alpha-ketoglutarate (α-kg) and alter the downstream regulation of α-kg as well as cellular biological characteristics. Our previous research indicated that under H. pylori infection, mesenchymal stem cells (MSCs) migrated to the stomach and participated in gastric cancer (GC) development either by differentiating into epithelial cells or promoting angiogenesis. However, how MSCs themselves participate in H. pylori-indicated GC remains unclear. Therefore, a GGT knockout H. pylori strain (Hp- KS-1) was constructed, and downstream histone H3K9 and H3K27 methylation and the PI3K/AKT signaling pathway of α-kg were detected using Western blotting. The biological characteristics of MSCs were also examined. An additive α-kg supplement was also added to H. pylori-treated MSCs to investigate alterations in these aspects. Compared to the control and Hp-KS-1 groups, H. pylori-treated MSCs reduced Gln and α-kg, increased H3K9me3 and H3K27me3, activated the PI3K-AKT signaling pathway, and promoted the proliferation, migration, self-renewal, and pluripotency of MSCs. The addition of α-kg rescued the H. pylori-induced alterations. Injection of MSCs to nude mice resulted in the largest tumors in the H. pylori group and significantly reduced tumor sizes in the Hp-KS-1 and α-kg groups. In summary, GGT of H. pylori affected MSCs by interfering with the metabolite α-kg to increase trimethylation of histone H3K9 and H3K27, activating the PI3K/AKT signaling pathway, and promoting proliferation, migration, self-renewal, and pluripotency in tumorigenesis, elucidating the mechanisms of MSCs in GC development.

Citations

Citations to this article as recorded by

Gamma-glutamyl transferase secreted by Helicobacter pylori promotes the development of gastric cancer by affecting the energy metabolism and histone methylation status of gastric epithelial cells
Xin Jiang, Weijun Wang, Zeyu Wang, Zhe Wang, Huiying Shi, Lingjun Meng, Suya Pang, Mengke Fan, Rong Lin
Cell Communication and Signaling.2024;[Epub] CrossRef
Design of a Helicobacter pylori multi-epitope vaccine based on immunoinformatics
Man Cui, Xiaohui Ji, Fengtao Guan, Guimin Su, Lin Du
Frontiers in Immunology.2024;[Epub] CrossRef
Gastric cancer and mesenchymal stem cell-derived exosomes: from pro-tumorigenic effects to anti-cancer vehicles
Maryam Dolatshahi, Ahmad Reza Bahrami, Qaiser Iftikhar Sheikh, Mohsen Ghanbari, Maryam M. Matin
Archives of Pharmacal Research.2024; 47(1): 1. CrossRef
Mesenchymal Stem Cell-Derived Exosomes Modulate Angiogenesis in Gastric Cancer
Fawzy Akad, Veronica Mocanu, Sorin Nicolae Peiu, Viorel Scripcariu, Bogdan Filip, Daniel Timofte, Florin Zugun-Eloae, Magdalena Cuciureanu, Monica Hancianu, Teodor Oboroceanu, Laura Condur, Radu Florin Popa
Biomedicines.2023; 11(4): 1031. CrossRef
Helicobacter pylori and Its Role in Gastric Cancer
Victor E. Reyes
Microorganisms.2023; 11(5): 1312. CrossRef

Regulator of ribonuclease activity modulates the pathogenicity of Vibrio vulnificus: Jaejin Lee , Eunkyoung Shin , Jaeyeong Park , Minho Lee , Kangseok Lee; J. Microbiol. 2021;59(12):1133-1141. Published online November 9, 2021; DOI: https://doi.org/10.1007/s12275-021-1518-5

58 View
0 Download
4 Web of Science
5 Crossref

Abstract

RraA, a protein regulator of RNase E activity, plays a unique role in modulating the mRNA abundance in Escherichia coli. The marine pathogenic bacterium Vibrio vulnificus also possesses homologs of RNase E (VvRNase E) and RraA (VvRraA1 and VvRraA2). However, their physiological roles have not yet been investigated. In this study, we demonstrated that VvRraA1 expression levels affect the pathogenicity of V. vulnificus. Compared to the wild-type strain, the VvrraA1-deleted strain (ΔVvrraA1) showed decreased motility, invasiveness, biofilm formation ability as well as virulence in mice; these phenotypic changes of ΔVvrraA1 were restored by the exogenous expression of VvrraA1. Transcriptomic analysis indicated that VvRraA1 expression levels affect the abundance of a large number of mRNA species. Among them, the halflives of mRNA species encoding virulence factors (e.g., smcR and htpG) that have been previously shown to affect VvrraA1 expression-dependent phenotypes were positively correlated with VvrraA1 expression levels. These findings suggest that VvRraA1 modulates the pathogenicity of V. vulnificus by regulating the abundance of a subset of mRNA species.

Citations

Citations to this article as recorded by

Identification of the global regulatory roles of RraA via the integrative transcriptome and proteome in Vibrio alginolyticus
Huizhen Chen, Qian Gao, Bing Liu, Ying Zhang, Jianxiang Fang, Songbiao Wang, Youqi Chen, Chang Chen, Nicolas E. Buchler
mSphere.2024;[Epub] CrossRef
Comparative Transcriptomic Analysis of Flagellar-Associated Genes in Salmonella Typhimurium and Its rnc Mutant
Seungmok Han, Ji-Won Byun, Minho Lee
Journal of Microbiology.2024; 62(1): 33. CrossRef
Eco-Evolutionary Drivers of Vibrio parahaemolyticus Sequence Type 3 Expansion: Retrospective Machine Learning Approach
Amy Marie Campbell, Chris Hauton, Ronny van Aerle, Jaime Martinez-Urtaza
JMIR Bioinformatics and Biotechnology.2024; 5: e62747. CrossRef
Relaxed Cleavage Specificity of Hyperactive Variants of Escherichia coli RNase E on RNA I
Dayeong Bae, Hana Hyeon, Eunkyoung Shin, Ji-Hyun Yeom, Kangseok Lee
Journal of Microbiology.2023; 61(2): 211. CrossRef
Regulator of RNase E activity modulates the pathogenicity of Salmonella Typhimurium
Jaejin Lee, Eunkyoung Shin, Ji-Hyun Yeom, Jaeyoung Park, Sunwoo Kim, Minho Lee, Kangseok Lee
Microbial Pathogenesis.2022; 165: 105460. CrossRef

Randomized Controlled Trial

Ulmus macrocarpa Hance extract modulates intestinal microbiota in healthy adults: a randomized, placebo-controlled clinical trial: Kwangmin Kim , Karpagam Veerappan , Nahyun Woo , Bohyeon Park , Sathishkumar Natarajan , Hoyong Chung , Cheolmin Kim , Junhyung Park; J. Microbiol. 2021;59(12):1150-1156. Published online October 26, 2021; DOI: https://doi.org/10.1007/s12275-021-1329-8

50 View
0 Download
6 Web of Science
6 Crossref

Abstract

The stem and root bark of Ulmus macrocarpa Hance has been used as traditional pharmacological agent against inflammation related disorders. The objective of this study was to explore the impact of Ulmus macrocarpa Hance extract (UME) on human gut microbiota. A randomized placebo-controlled clinical study was conducted in healthy adults. The study subjects were given 500 mg/day of UME or placebo orally for 4 weeks. Eighty fecal samples were collected at baseline and 4 weeks of UME or placebo intervention. The gut microbiota variation was evaluated by 16S rRNA profiling. The microbial response was highly personalized, and no statistically significant differences was observed in both species richness and abundance. The number of bacterial species identified in study subjects ranged from 86 to 182 species. The analysis for taxonomical changes revealed an increase in Eubacterium ventriosum, Blautia faecis, Ruminococcus gnavus in the UME group. Functional enrichment of bacterial genes showed an increase in primary and secondary bile acid biosynthesis in UME group. Having known from previous studies Eubacterium regulated bile acid homeostasis in protecting gut microbial architecture and immunity, we suggest that UME supplementation might enhance host immunity by modulating gut microbiota. This is the first stage study and forthcoming clinical studies with larger participants are needed to confirm these findings.

Citations

Citations to this article as recorded by

Catechin and flavonoid glycosides from the Ulmus genus: Exploring their nutritional pharmacology and therapeutic potential in osteoporosis and inflammatory conditions
Chanhyeok Jeong, Chang Hyung Lee, Jiwon Seo, Jung Han Yoon Park, Ki Won Lee
Fitoterapia.2024; 178: 106188. CrossRef
Comparative transcriptomes of four Elm species provide insights into the genetic features and adaptive evolution of Ulmus spp.
Shijie Wang, Lihui Zuo, Yichao Liu, Lianxiang Long, Jianghao Wu, Mengting Yuan, Jinmao Wang, Minsheng Yang
Forest Ecology and Management.2024; 553: 121560. CrossRef
Dietary Supplementation with Popped Amaranth Modulates the Gut Microbiota in Low Height-for-Age Children: A Nonrandomized Pilot Trial
Oscar de Jesús Calva-Cruz, Cesaré Ovando-Vázquez, Antonio De León-Rodríguez, Fabiola Veana, Eduardo Espitia-Rangel, Samuel Treviño, Ana Paulina Barba-de la Rosa
Foods.2023; 12(14): 2760. CrossRef
Potential lipid-lowering effects of Ulmus macrocarpa Hance extract in adults with untreated high low-density lipoprotein cholesterol concentrations: A randomized double-blind placebo-controlled trial
Ye Li Lee, Sang Yeoup Lee
Frontiers in Medicine.2022;[Epub] CrossRef
Research progress on the relationship between intestinal microecology and intestinal bowel disease
Qianhui Fu, Tianyuan Song, Xiaoqin Ma, Jian Cui
Animal Models and Experimental Medicine.2022; 5(4): 297. CrossRef
The current status of old traditional medicine introduced from Persia to China
Jinmin Shi, Yifan Yang, Xinxin Zhou, Lijun Zhao, Xiaohua Li, Abdullah Yusuf, Mohaddeseh S. M. Z. Hosseini, Fatemeh Sefidkon, Xuebo Hu
Frontiers in Pharmacology.2022;[Epub] CrossRef

Journal Articles

Incomplete autophagy promotes the replication of Mycoplasma hyopneumoniae: Zhaodi Wang† , Yukang Wen† , Bingqian Zhou , Yaqin Tian , Yaru Ning , Honglei Ding; J. Microbiol. 2021;59(8):782-792. Published online July 5, 2021; DOI: https://doi.org/10.1007/s12275-021-1232-3

45 View
0 Download
7 Web of Science
4 Crossref

Abstract

Autophagy is an important cellular homeostatic mechanism for recycling of degradative proteins and damaged organelles. Autophagy has been shown to play an important role in cellular responses to bacteria and bacterial replication. However, the role of autophagy in Mycoplasma hyopneumoniae infection and the pathogenic mechanism is not well characterized. In this study, we showed that M. hyopneumoniae infection significantly increases the number of autophagic vacuoles in host cells. Further, we found significantly enhanced expressions of autophagy marker proteins (LC3-II, ATG5, and Beclin 1) in M. hyopneumoniae-infected cells. Moreover, immunofluorescence analysis showed colocalization of P97 protein with LC3 during M. hyopneumoniae infection. Interestingly, autophagic flux marker, p62, accumulated with the induction of infection. Conversely, the levels of p62 and LC3-II were decreased after treatment with 3-MA, inhibiting the formation of autophagosomes, during infection. In addition, accumulation of autophagosomes promoted the expression of P97 protein and the survival of M. hyopneumoniae in PK- 15 cells, as the replication of M. hyopneumoniae was downregulated by adding 3-MA. Collectively, these findings provide strong evidence that M. hyopneumoniae induces incomplete autophagy, which in turn enhances its reproduction in host cells. These findings provide novel insights into the interaction of M. hyopneumoniae and host.

Citations

Citations to this article as recorded by

Research Progress on Immune Evasion of Mycoplasma hyopneumoniae
Bin Jiang, Ying Zhang, Gaojian Li, Yanping Quan, Jianhong Shu, Huapeng Feng, Yulong He
Microorganisms.2024; 12(7): 1439. CrossRef
The Role of Pyroptosis and Autophagy in Ischemia Reperfusion Injury
Huijie Zhao, Yihan Yang, Xinya Si, Huiyang Liu, Honggang Wang
Biomolecules.2022; 12(7): 1010. CrossRef
Mycoplasma bovis inhibits autophagy in bovine mammary epithelial cells via a PTEN/PI3K-Akt-mTOR-dependent pathway
Maolin Xu, Yang Liu, Tuerdi Mayinuer, Yushan Lin, Yue Wang, Jian Gao, Dong Wang, John P. Kastelic, Bo Han
Frontiers in Microbiology.2022;[Epub] CrossRef
Incomplete autophagy promotes the proliferation of Mycoplasma hyopneumoniae through the JNK and Akt pathways in porcine alveolar macrophages
Yukang Wen, Zhengkun Chen, Yaqin Tian, Mei Yang, Qingshuang Dong, Yujiao Yang, Honglei Ding
Veterinary Research.2022;[Epub] CrossRef

Salicibibacter cibarius sp. nov. and Salicibibacter cibi sp. nov., two novel species of the family Bacillaceae isolated from kimchi: Young Joon Oh , Joon Yong Kim , Seul Ki Lim , Min-Sung Kwon , Hak-Jong Choi; J. Microbiol. 2021;59(5):460-466. Published online April 28, 2021; DOI: https://doi.org/10.1007/s12275-021-0513-1

48 View
0 Download
1 Crossref

Abstract

To date, all species in the genus Salicibibacter have been isolated in Korean commercial kimchi. We aimed to describe the taxonomic characteristics of two strains, NKC5-3T and NKC21-4T, isolated from commercial kimchi collected from various regions in the Republic of Korea. Cells of these strains were rod-shaped, Gram-positive, aerobic, oxidase- and catalase- positive, non-motile, halophilic, and alkalitolerant. Both strains, unlike other species of the genus Salicibibacter, could not grow without NaCl. Strains NKC5-3T and NKC21-4T could tolerate up to 25.0% (w/v) NaCl (optimum 10%) and grow at pH 7.0–10.0 (optimum 8.5) and 8.0–9.0 (optimum 8.5), respectively; they showed 97.1% 16S rRNA gene sequence similarity to each other and were most closely related to S. kimchii NKC1-1T (97.0% and 96.8% similarity, respectively). The genome of strain NKC5-3T was nearly 4.6 Mb in size, with 4,456 protein-coding sequences (CDSs), whereas NKC21-4T genome was nearly 3.9 Mb in size, with 3,717 CDSs. OrthoANI values between the novel strains and S. kimchii NKC1-1T were far lower than the species demarcation threshold. NKC5-3T and NKC21-4T clustered together to form branches that were distinct from the other Salicibibacter species. The major fatty acids in these strains were anteiso-C15:0 and anteiso-C17:0, and the predominant menaquinone was menaquinone-7. The polar lipids of NKC5-3T included diphosphatidylglycerol (DPG), phosphatidylglycerol (PG), and five unidentified phospholipids (PL), and those of NKC21-4T included DPG, PG, seven unidentified PLs, and an unidentified lipid. Both isolates had DPG, which is the first case in the genus Salicibibacter. The genomic G + C content of strains NKC5-3T and NKC21-4T was 44.7 and 44.9 mol%, respectively. Based on phenotypic, genomic, phylogenetic, and chemotaxonomic analyses, strains NKC5-3T (= KACC 22040T = DSM 111417T) and NKC21-4T (= KACC 22041T = DSM 111418T) represent two novel species of the genus Salicibibacter, for which the names Salicibibacter cibarius sp. nov. and Salicibibacter cibi sp. nov. are proposed.

Citations

Citations to this article as recorded by

Valid publication of new names and new combinations effectively published outside the IJSEM
Aharon Oren, George M. Garrity
International Journal of Systematic and Evolutionary Microbiology .2021;[Epub] CrossRef

Chitosan-chelated zinc modulates cecal microbiota and attenuates inflammatory response in weaned rats challenged with Escherichia coli: Dan Feng , Minyang Zhang , Shiyi Tian , Jing Wang , Weiyun Zhu; J. Microbiol. 2020;58(9):780-792. Published online September 1, 2020; DOI: https://doi.org/10.1007/s12275-020-0056-x

49 View
0 Download
10 Web of Science
9 Crossref

Abstract

Escherichia coli (E. coli) infection is very common among young growing animals, and zinc supplementation is often used to alleviate inflammation induced by this disease. Therefore, the objective of this study was to evaluate whether chitosan- chelated zinc (CS-Zn) supplementation could attenuate gut injury induced by E. coli challenge and to explore how CSZn modulates cecal microbiota and alleviates intestinal inflammation in weaned rats challenged with E. coli. 36 weaned rats (55.65 ± 2.18 g of BW, n = 12) were divided into three treatment groups consisting of unchallenged rats fed a basal diet (Control) and two groups of rats challenged with E. coli and fed a basal diet or a diet containing 640 mg/kg CS-Zn (E. coli + CS-Zn, containing 50 mg/kg Zn) for a 14-day experiment. On days 10 to 12, each rat was given 4 ml of E. coli solution with a total bacteria count of 1010 CFU by oral gavage daily or normal saline of equal dosage. CS-Zn supplementation mitigated intestinal morphology impairment (e.g. higher crypt depth and lower macroscopic damage index) induced by E. coli challenge (P < 0.05), and alleviated the increase of Myeloperoxidase (MPO) activity after E. coli challenge (P < 0.05). 16S rRNA sequencing analyses revealed that E. coli challenge significantly increased the abundance of Verrucomicrobia and E. coli (P < 0.05). However, CS-Zn supplementation increased the abundance of Lactobacillus and decreased the relative abundance of Proteobacteria, Desulfovibrio and E. coli (P < 0.05). The concentrations of butyrate in the cecal digesta, which decreased due to the challenge, were higher in the E. coli + CS-Zn group (P < 0.05). In addition, CS-Zn supplementation significantly prevented the elevation of pro-inflammatory cytokines IL-6 concentration and upregulated the level of anti-inflammatory cytokines IL-10 in cecal mucosa induced by E. coli infection (P < 0.05). In conclusion, these results indicate that CS-Zn produces beneficial effects in alleviating gut mucosal injury of E. coli challenged rats by enhancing the intestinal morphology and modulating cecal bacterial composition, as well as attenuating inflammatory response.

Citations

Citations to this article as recorded by

Organic zinc glycine chelate is better than inorganic zinc in improving growth performance of cherry valley ducks by regulating intestinal morphology, barrier function, and the gut microbiome
Yaqi Chang, Ke Wang, Min Wen, Bing Wu, Guangmang Liu, Hua Zhao, Xiaoling Chen, Jingyi Cai, Gang Jia
Journal of Animal Science.2023;[Epub] CrossRef
Effects on the intestinal morphology, inflammatory response and microflora in piglets challenged with enterotoxigenic Escherichia coli K88
Kun Zhang, Xiaoyang Shen, Lu Han, Mengyun Wang, Shaoqiang Lian, Kejun Wang, Chunli Li
Research in Veterinary Science.2023; 157: 50. CrossRef
Surface engineering of chitosan nanosystems and the impact of functionalized groups on the permeability of model drug across intestinal tissue
Sadaf Ejaz, Syed Muhammad Afroz Ali, Bina Zarif, Ramla Shahid, Ayesha Ihsan, Tayyaba Noor, Muhammad Imran
International Journal of Biological Macromolecules.2023; 242: 124777. CrossRef
Chitosan Protects Immunosuppressed Mice Against Cryptosporidium parvum Infection Through TLR4/STAT1 Signaling Pathways and Gut Microbiota Modulation
Sajid Ur Rahman, Haiyan Gong, Rongsheng Mi, Yan Huang, Xiangan Han, Zhaoguo Chen
Frontiers in Immunology.2022;[Epub] CrossRef
Effect of Dietary Zinc Methionine Supplementation on Growth Performance, Immune Function and Intestinal Health of Cherry Valley Ducks Challenged With Avian Pathogenic Escherichia coli
Yaqi Chang, Jia Mei, Ting Yang, Zhenyu Zhang, Guangmang Liu, Hua Zhao, Xiaoling Chen, Gang Tian, Jingyi Cai, Bing Wu, Fali Wu, Gang Jia
Frontiers in Microbiology.2022;[Epub] CrossRef
Chitosan-chelated zinc modulates ileal microbiota, ileal microbial metabolites, and intestinal function in weaned piglets challenged with Escherichia coli K88
Guojun Hou, Minyang Zhang, Jing Wang, Weiyun Zhu
Applied Microbiology and Biotechnology.2021; 105(19): 7529. CrossRef
Gut Microbiota as a Mediator of Essential and Toxic Effects of Zinc in the Intestines and Other Tissues
Anatoly V. Skalny, Michael Aschner, Xin Gen Lei, Viktor A. Gritsenko, Abel Santamaria, Svetlana I. Alekseenko, Nagaraja Tejo Prakash, Jung-Su Chang, Elena A. Sizova, Jane C. J. Chao, Jan Aaseth, Alexey A. Tinkov
International Journal of Molecular Sciences.2021; 22(23): 13074. CrossRef
Potential Applications of Chitosan-Based Nanomaterials to Surpass the Gastrointestinal Physiological Obstacles and Enhance the Intestinal Drug Absorption
Nutthapoom Pathomthongtaweechai, Chatchai Muanprasat
Pharmaceutics.2021; 13(6): 887. CrossRef
Modulation of Gut Microbiota for the Prevention and Treatment of COVID-19
Jiezhong Chen, Luis Vitetta
Journal of Clinical Medicine.2021; 10(13): 2903. CrossRef

Instruction of microbiome taxonomic profiling based on 16S rRNA sequencing: Hyojung Kim , Sora Kim , Sungwon Jung; J. Microbiol. 2020;58(3):193-205. Published online February 27, 2020; DOI: https://doi.org/10.1007/s12275-020-9556-y

47 View
0 Download
23 Web of Science
24 Crossref

Abstract

Recent studies on microbiome highlighted their importance in various environments including human, where they are involved in multiple biological contexts such as immune mechanism, drug response, and metabolism. The rapid increase of new findings in microbiome research is partly due to the technological advances in microbiome identification, including the next-generation sequencing technologies. Several applications of different next-generation sequencing platforms exist for microbiome identification, but the most popular method is using short-read sequencing technology to profile targeted regions of 16S rRNA genes of microbiome because of its low-cost and generally reliable performance of identifying overall microbiome compositions. The analysis of targeted 16S rRNA sequencing data requires multiple steps of data processing and systematic analysis, and many software tools have been proposed for such procedures. However, properly organizing and using such software tools still require certain level of expertise with computational environments. The purpose of this article is introducing the concept of computational analysis of 16S rRNA sequencing data to microbiologists and providing easy-to-follow and step-by-step instructions of using recent software tools of microbiome analysis. This instruction may be used as a quick guideline for general next-generation sequencing-based microbiome studies or a template of constructing own software pipelines for customized analysis.

Citations

Citations to this article as recorded by

PreLect: Prevalence leveraged consistent feature selection decodes microbial signatures across cohorts
Yin-Cheng Chen, Yin-Yuan Su, Tzu-Yu Chu, Ming-Fong Wu, Chieh-Chun Huang, Chen-Ching Lin
npj Biofilms and Microbiomes.2025;[Epub] CrossRef
Microbial Population Analysis Based on 16S rRNA Detection and Its Application in Epidemic Disease Warning
逸欣王
Advances in Microbiology.2024; 13(03): 216. CrossRef
The microbial composition of pancreatic ductal adenocarcinoma: a systematic review of 16S rRNA gene sequencing
Nabeel Merali, Tarak Chouari, Casie Sweeney, James Halle-Smith, Maria-Danae Jessel, Bing Wang, James O’ Brien, Satoshi Suyama, José I. Jiménez, Keith J. Roberts, Eirini Velliou, Shivan Sivakumar, Timothy A. Rockall, Ayse Demirkan, Virginia Pedicord, Dongm
International Journal of Surgery.2024; 110(10): 6771. CrossRef
Effect of the 16S rRNA Gene Hypervariable Region on the Microbiome Taxonomic Profile and Diversity in the Endangered Fish Totoaba macdonaldi
Itzel Soledad Pérez-Bustamante, Roberto Cruz-Flores, Jesús Antonio López-Carvallo, Samuel Sánchez-Serrano
Microorganisms.2024; 12(11): 2119. CrossRef
The Synergistic Impact of a Novel Plant Growth-Promoting Rhizobacterial Consortium and Ascophyllum nodosum Seaweed Extract on Rhizosphere Microbiome Dynamics and Growth Enhancement in Oryza sativa L. RD79
Pisit Thamvithayakorn, Cherdchai Phosri, Louisa Robinson-Boyer, Puenisara Limnonthakul, John H. Doonan, Nuttika Suwannasai
Agronomy.2024; 14(11): 2698. CrossRef
Deciphering the impact of microbial interactions on COPD exacerbation: An in-depth analysis of the lung microbiome
Hamidreza Taherkhani, Azadeh KavianFar, Sargol Aminnezhad, Hossein Lanjanian, Ali Ahmadi, Sadegh Azimzadeh, Ali Masoudi-Nejad
Heliyon.2024; 10(4): e24775. CrossRef
Patent Mining on the Use of Antioxidant Phytochemicals in the Technological Development for the Prevention and Treatment of Periodontitis
Paulo José Lima Juiz, Luiza Teles Barbalho Ferreira, Edilson Araújo Pires, Cristiane Flora Villarreal
Antioxidants.2024; 13(5): 566. CrossRef
Periodontal Hastalıklar: Başlıca Risk Faktörleri
Tuba USTAOĞLU, Deniz MIHÇIOĞLU
Cumhuriyet Üniversitesi Sağlık Bilimleri Enstitüsü Dergisi.2023; 8(3): 501. CrossRef
Potential effects of gut microbiota on host cancers: focus on immunity, DNA damage, cellular pathways, and anticancer therapy
Jiaao Sun, Feng Chen, Guangzhen Wu
The ISME Journal.2023; 17(10): 1535. CrossRef
Using microbiome information to understand and improve animal performance
Jeferson Menezes Lourenco, Christina Breanne Welch
Italian Journal of Animal Science.2022; 21(1): 899. CrossRef
The Influence of Periodontal Disease on Oral Health Quality of Life in Patients with Cardiovascular Disease: A Cross-Sectional Observational Single-Center Study
Pompilia Camelia Lazureanu, Florina Georgeta Popescu, Laura Stef, Mircea Focsa, Monica Adriana Vaida, Romeo Mihaila
Medicina.2022; 58(5): 584. CrossRef
Osteoimmunology in Periodontitis: Local Proteins and Compounds to Alleviate Periodontitis
Kridtapat Sirisereephap, Tomoki Maekawa, Hikaru Tamura, Takumi Hiyoshi, Hisanori Domon, Toshihito Isono, Yutaka Terao, Takeyasu Maeda, Koichi Tabeta
International Journal of Molecular Sciences.2022; 23(10): 5540. CrossRef
Effects of oral health intervention strategies on cognition and microbiota alterations in patients with mild Alzheimer's disease: A randomized controlled trial
Lili Chen, Huizhen Cao, Xiaoqi Wu, Xinhua Xu, Xinli Ji, Bixia Wang, Ping Zhang, Hong Li
Geriatric Nursing.2022; 48: 103. CrossRef
Lung microbiome in children with hematological malignancies and lower respiratory tract infections
Yun Zhang, Haonan Ning, Wenyu Zheng, Jing Liu, Fuhai Li, Junfei Chen
Frontiers in Oncology.2022;[Epub] CrossRef
Defining the baseline of pulmonary microbiota in healthy populations and influencing factors
Zhuoning Tang, Sen Yang, Zilong He
Highlights in Science, Engineering and Technology.2022; 11: 38. CrossRef
Beware to ignore the rare: how imputing zero-values can improve the quality of 16S rRNA gene studies results
Giacomo Baruzzo, Ilaria Patuzzi, Barbara Di Camillo
BMC Bioinformatics.2022;[Epub] CrossRef
Periodontal Disease: The Good, The Bad, and The Unknown
Lea M. Sedghi, Margot Bacino, Yvonne Lorraine Kapila
Frontiers in Cellular and Infection Microbiology.2021;[Epub] CrossRef
Omics-based microbiome analysis in microbial ecology: from sequences to information
Jang-Cheon Cho
Journal of Microbiology.2021; 59(3): 229. CrossRef
Microbiome-immune interactions in tuberculosis
Giorgia Mori, Mark Morrison, Antje Blumenthal, N.Luisa Hiller
PLOS Pathogens.2021; 17(4): e1009377. CrossRef
Simple Matching Using QIIME 2 and RDP Reveals Misidentified Sequences and an Underrepresentation of Fungi in Reference Datasets
Lauren E. Eldred, R. Greg Thorn, David Roy Smith
Frontiers in Genetics.2021;[Epub] CrossRef
Xylanase impact beyond performance: A microbiome approach in laying hens
Veerle Van Hoeck, Ingrid Somers, Anas Abdelqader, Alexandra L. Wealleans, Sandy Van de Craen, Dany Morisset, Arda Yildirim
PLOS ONE.2021; 16(9): e0257681. CrossRef
User guides for biologists to learn computational methods
Dokyun Na
Journal of Microbiology.2020; 58(3): 173. CrossRef
High-throughput cultivation based on dilution-to-extinction with catalase supplementation and a case study of cultivating acI bacteria from Lake Soyang
Suhyun Kim, Miri S. Park, Jaeho Song, Ilnam Kang, Jang-Cheon Cho
Journal of Microbiology.2020; 58(11): 893. CrossRef
Microbiome Composition and Borrelia Detection in Ixodes scapularis Ticks at the Northwestern Edge of Their Range
Janet L. H. Sperling, Daniel Fitzgerald, Felix A. H. Sperling, Katharine E. Magor
Tropical Medicine and Infectious Disease.2020; 5(4): 173. CrossRef

Preliminary study on microeukaryotic community analysis using NGS technology to determine postmortem submersion interval (PMSI) in the drowned pig: Cheol-ho Hyun , Heesoo Kim , Seongho Ryu , Won Kim; J. Microbiol. 2019;57(11):1003-1011. Published online September 25, 2019; DOI: https://doi.org/10.1007/s12275-019-9198-0

51 View
0 Download
4 Web of Science
4 Crossref

Abstract

While several methods for determining postmortem submersion interval (PMSI) in drowning cases have been suggested, the estimation of PMSI remains difficult. Next-generation sequencing (NGS) technology enables simultaneous identification of multiple taxa from environmental samples. Although NGS has been applied to estimate time since death, this application has been mainly focused on terrestrial cases. As a case study, we investigated microeukaryotic biodiversity and community structures in submerged car bonnet and drowned pig using NGS technology. NGS analysis showed that the microeukaryotic biodiversity in pig carcass was relevantly lower than that in car bonnet. NGS results also revealed that water molds and algae were related to decomposition. Relative abundances of Filobasidium, Achlya, Saprolegnia, Hydrodicton, Lobosphaera, and Scenedesmus varied with decomposition period. This data indicated that these taxa might be useful as good indicators to estimate PMSI. This study showed microeukaryotic community analysis using NGS technology may help solve drowning cases in forensic investigation.

Citations

Citations to this article as recorded by

A review of human decomposition in marine environments
Britny A. Martlin, Gail S. Anderson, Lynne S. Bell
Canadian Society of Forensic Science Journal.2023; 56(2): 92. CrossRef
Determination of the corpse’s stay in the water duration according to maceration degree of its skin
A.Yu. Vavilov, A.A. Khalikov, I.A. Rykunov, K.O. Kuznetsov, R.H. Sagidullin
Sudebno-meditsinskaya ekspertiza.2023; 66(3): 64. CrossRef
Predicting the Postmortem Interval Based on Gravesoil Microbiome Data and a Random Forest Model
Chunhong Cui, Yang Song, Dongmei Mao, Yajun Cao, Bowen Qiu, Peng Gui, Hui Wang, Xingchun Zhao, Zhi Huang, Liqiong Sun, Zengtao Zhong
Microorganisms.2022; 11(1): 56. CrossRef
Bacterial Succession in Microbial Biofilm as a Potential Indicator for Postmortem Submersion Interval Estimation
Finkelbergs Dmitrijs, Juanjuan Guo, Yecao Huang, Yafei Liu, Xinyue Fang, Kankan Jiang, Lagabaiyila Zha, Jifeng Cai, Xiaoliang Fu
Frontiers in Microbiology.2022;[Epub] CrossRef

First
Prev
Page of 4
Next
Last

Search