1
|
Betser-Cohen G, Mayuoni-Kirsehenbaum L, Zubeidat K, Horev Y, Berchoer LE, Cohen A, Aframian D, Amiel M, Hovav AH. Identification of oral bacteria as a new forensic tool for saliva detection. Forensic Sci Int 2024; 361:112112. [PMID: 38917506 DOI: 10.1016/j.forsciint.2024.112112] [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: 01/18/2024] [Revised: 05/12/2024] [Accepted: 06/16/2024] [Indexed: 06/27/2024]
Abstract
Body fluid detection is an important component in the toolbox of forensic scientists, with saliva playing a particularly critical role in forensic evidence. Given that each body fluid possesses a distinct microbiome, the identification of body fluid based on specific representatives of the microbiota presents an appealing approach for forensic applications. In this study, we have developed a real-time polymerase chain reaction (RT-PCR)-based method for the precise identification of saliva, focusing on three bacteria highly associated with saliva but not with other tested body fluids -Porphyromonas gingivalis, Fusobacterium nucleatum, and Streptococcus salivarius. The inclusion of these three bacterial species enhances the accuracy of detection and reinforces validation. Notably, specific identification of saliva was achievable even at low concentrations where Phadebas, a commonly used method for saliva detection, proved ineffective. Importantly, bacteria-based saliva detection utilizes DNA generated for small tandem repeats (STR) profiling, facilitating seamless integration into forensic laboratories and optimizing DNA sample utilization. This study collectively proposes an effective bacterial DNA-based approach for saliva identification, demonstrating promising potential for forensic applications.
Collapse
Affiliation(s)
- Gili Betser-Cohen
- Division of Identification and Forensic Science, Police National HQ, Haim Bar-Lev 1 Road, Jerusalem, Israel.
| | - Lina Mayuoni-Kirsehenbaum
- Division of Identification and Forensic Science, Police National HQ, Haim Bar-Lev 1 Road, Jerusalem, Israel
| | - Khaled Zubeidat
- Institute of Biomedical and Oral Research, Faculty of Dental Medicine, Hebrew University, Jerusalem, Israel
| | - Yael Horev
- Institute of Biomedical and Oral Research, Faculty of Dental Medicine, Hebrew University, Jerusalem, Israel
| | - Luba Eli Berchoer
- Institute of Biomedical and Oral Research, Faculty of Dental Medicine, Hebrew University, Jerusalem, Israel
| | - Adiel Cohen
- Department of Obstetrics and Gynecology, Hadassah Medical Organization and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Doron Aframian
- Department of Oral Medicine, Sedation and Imaging, Faculty of Dental Medicine, Hadassah Medical Center, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Merav Amiel
- Division of Identification and Forensic Science, Police National HQ, Haim Bar-Lev 1 Road, Jerusalem, Israel
| | - Avi-Hai Hovav
- Institute of Biomedical and Oral Research, Faculty of Dental Medicine, Hebrew University, Jerusalem, Israel.
| |
Collapse
|
2
|
Shang X, Bai H, Fan L, Zhang X, Zhao X, Liu Z. In vitro biofilm formation of Gardnerella vaginalis and Escherichia coli associated with bacterial vaginosis and aerobic vaginitis. Front Cell Infect Microbiol 2024; 14:1387414. [PMID: 38751998 PMCID: PMC11094315 DOI: 10.3389/fcimb.2024.1387414] [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: 02/17/2024] [Accepted: 04/18/2024] [Indexed: 05/18/2024] Open
Abstract
Objective To determine the optimum biofilm formation ratio of Gardnerella vaginalis (G. vaginalis) in a mixed culture with Escherichia coli (E. coli). Methods G. vaginalis ATCC14018, E. coli ATCC25922, as well as five strains of G. vaginalis were selected from the vaginal sources of patients whose biofilm forming capacity was determined by the Crystal Violet method. The biofilm forming capacity of E. coli in anaerobic and non-anaerobic environments were compared using the identical assay. The Crystal Violet method was also used to determine the biofilm forming capacity of a co-culture of G. vaginalis and E. coli in different ratios. After Live/Dead staining, biofilm thickness was measured using confocal laser scanning microscopy, and biofilm morphology was observed by scanning electron microscopy. Results The biofilm forming capacity of E. coli under anaerobic environment was similar to that in a 5% CO2 environment. The biofilm forming capacity of G. vaginalis and E. coli was stronger at 106:105 CFU/mL than at other ratios (P<0.05). Their thicknesses were greater at 106:105 CFU/mL than at the other ratios, with the exception of 106:102 CFU/mL (P<0.05), under laser scanning microscopy. Scanning electron microscopy revealed increased biofilm formation at 106:105 CFU/mL and 106:102 CFU/mL, but no discernible E. coli was observed at 106:102 CFU/mL. Conclusion G. vaginalis and E. coli showed the greatest biofilm forming capacity at a concentration of 106:105 CFU/mL at 48 hours and could be used to simulate a mixed infection of bacterial vaginosis and aerobic vaginitis in vitro.
Collapse
Affiliation(s)
- Xiang Shang
- Department of Gynecology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Huihui Bai
- Department of Clinical Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Linyuan Fan
- Department of Gynecology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Xin Zhang
- Department of Gynecology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Xiaowen Zhao
- Department of Gynecology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Zhaohui Liu
- Department of Gynecology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, China
| |
Collapse
|
3
|
Pither MD, Andretta E, Rocca G, Balzarini F, Matamoros-Recio A, Colicchio R, Salvatore P, van Kooyk Y, Silipo A, Granucci F, Martin-Santamaria S, Chiodo F, Molinaro A, Di Lorenzo F. Deciphering the Chemical Language of the Immunomodulatory Properties of Veillonella parvula Lipopolysaccharide. Angew Chem Int Ed Engl 2024; 63:e202401541. [PMID: 38393988 DOI: 10.1002/anie.202401541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 02/22/2024] [Accepted: 02/23/2024] [Indexed: 02/25/2024]
Abstract
Veillonella parvula, prototypical member of the oral and gut microbiota, is at times commensal yet also potentially pathogenic. The definition of the molecular basis tailoring this contrasting behavior is key for broadening our understanding of the microbiota-driven pathogenic and/or tolerogenic mechanisms that take place within our body. In this study, we focused on the chemistry of the main constituent of the outer membrane of V. parvula, the lipopolysaccharide (LPS). LPS molecules indeed elicit pro-inflammatory and immunomodulatory responses depending on their chemical structures. Herein we report the structural elucidation of the LPS from two strains of V. parvula and show important and unprecedented differences in both the lipid and carbohydrate moieties, including the identification of a novel galactofuranose and mannitol-containing O-antigen repeating unit for one of the two strains. Furthermore, by harnessing computational studies, in vitro human cell models, as well as lectin binding solid-phase assays, we discovered that the two chemically diverse LPS immunologically behave differently and have attempted to identify the molecular determinant(s) governing this phenomenon. Whereas pro-inflammatory potential has been evidenced for the lipid A moiety, by contrast a plausible "immune modulating" action has been proposed for the peculiar O-antigen portion.
Collapse
Affiliation(s)
- Molly Dorothy Pither
- Department of Chemical Sciences, University of Naples Federico II, via Cinthia, 4, 80126, Naples, Italy
| | - Emanuela Andretta
- Department of Chemical Sciences, University of Naples Federico II, via Cinthia, 4, 80126, Naples, Italy
| | - Giuseppe Rocca
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza dell'Ateneo Nuovo, 1, 20126, Milan, Italy
| | - Fabio Balzarini
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC, Vrije Universiteit Amsterdam, 1007 MB, Amsterdam, The Netherlands
| | - Alejandra Matamoros-Recio
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas, CIB-CSIC, C/ Ramiro de Maeztu, 9, 28040, Madrid, Spain
| | - Roberta Colicchio
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via Pansini, 5, 80131, Naples, Italy
| | - Paola Salvatore
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via Pansini, 5, 80131, Naples, Italy
| | - Yvette van Kooyk
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC, Vrije Universiteit Amsterdam, 1007 MB, Amsterdam, The Netherlands
| | - Alba Silipo
- Department of Chemical Sciences, University of Naples Federico II, via Cinthia, 4, 80126, Naples, Italy
| | - Francesca Granucci
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza dell'Ateneo Nuovo, 1, 20126, Milan, Italy
| | - Sonsoles Martin-Santamaria
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas, CIB-CSIC, C/ Ramiro de Maeztu, 9, 28040, Madrid, Spain
| | - Fabrizio Chiodo
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC, Vrije Universiteit Amsterdam, 1007 MB, Amsterdam, The Netherlands
- Institute of Biomolecular Chemistry, National Research Council (CNR), Via Campi Flegrei, 34, 80078, Pozzuoli, Naples, Italy
| | - Antonio Molinaro
- Department of Chemical Sciences, University of Naples Federico II, via Cinthia, 4, 80126, Naples, Italy
| | - Flaviana Di Lorenzo
- Department of Chemical Sciences, University of Naples Federico II, via Cinthia, 4, 80126, Naples, Italy
| |
Collapse
|
4
|
Deng S, Yuan P, Sun J. The role of NF-κB in carcinogenesis of cervical cancer: opportunities and challenges. Mol Biol Rep 2024; 51:538. [PMID: 38642209 DOI: 10.1007/s11033-024-09447-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 03/13/2024] [Indexed: 04/22/2024]
Abstract
The nuclear factor-κB (NF-κB) family, consisting of several transcription factors, has been implicated in the regulation of cell proliferation and invasion, as well as inflammatory reactions and tumor development. Cervical cancer (CC) results from long-term interactions of multiple factors, among which persistent high-risk human papillomavirus (hrHPV) infection is necessary. During different stages from early to late after HPV infection, the activity of NF-κB varies and plays various roles in carcinogenesis and progress of CC. As the center of the cell signaling transduction network, NF-κB can be activated through classical and non-classical pathways, and regulate the expression of downstream target genes involved in regulating the tumor microenvironment and acquiring hallmark traits of CC cells. Targeting NF-κB may help treat CC and overcome the resistance to radiation and chemotherapy. Even though NF-κB inhibitors have not been applied in clinical treatment as yet, due to limitations such as dose-restrictive toxicity and poor tumor-specificity, it is still considered to have significant therapeutic potential and application prospects. In this review, we focus on the role of NF-κB in the process of CC occurrence and hallmark capabilities acquisition. Finally, we summarize relevant NF-κB-targeted treatments, providing ideas for the prevention and treatment of CC.
Collapse
Affiliation(s)
- Song Deng
- The Second Clinical School, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ping Yuan
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan, China
| | - Jun Sun
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road 13, Wuhan, China.
| |
Collapse
|
5
|
Giovannini N, Lattuada D, Danusso R, Ferrazzi E. From pandemic to syndemic: microbiota, pregnancy, and environment at a crossroad. J Matern Fetal Neonatal Med 2023; 36:2183738. [PMID: 36977591 DOI: 10.1080/14767058.2023.2183738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
Aim: SARS-CoV2 is the latest pandemic that have plagued the socio-health system as an epiphenomenon resulting from planetary resources abuse, crucial for biodiversity. The Anthropocene best defines the present epoch in which human activity irreversibly manipulates intricate and delicate geological and biological balances established over eons. The devastating ecological and socio-economic implications of COVID-19, underline the importance of updating the present pandemic framework to a syndemic. This paper stems from the need to suggest to scientists, doctors, and patients a mission that integrates responsibility from individual to collective health, from present to trans-generational, from human to the entire biotic network. Today's choices are crucial for the perspective on all levels: political, economic, and health as well as cultural.Methods: Research on PubMed and other specific web-sites journal was performed on the topic "Microbiota", "Covid-19", "Pandemic", "Zoonosis", "SARS-CoV-2", "Environmental Pollutants", "Epigenetics", "Fetal Programming", "Human Extinction". Data collected were analysed for an integrative model of interconnection between environment, pregnancy, SARS-CoV-2 infection, and microbiota. Moreover, systematic literature review allowed to summarise in a table information about the worst pandemics that afflicted the human species recently.Results: This paper offers a broad view of the current pandemic starting with pregnancy, the moment when a new life begins and the health trajectories of the unborn child are defined, which will inevitably have repercussions on his well-being. The fundamental role of the biodiversity-rich microbiota in avoiding the development of severe infectious diseases, is therefore highlighted. It is imperative to adjust the current reductionist paradigm based on mostly immediate symptom management towards a broader understanding of the spatial interconnection of ecological niches with human health and the impacts of today's choices on the future. Health and healthcare are elitist rather than egalitarian, therefore focusing on environmental health forces us to make a concerted and systemic effort that challenges political and economic barriers, which are biologically senseless. A healthy microbiota is essential to well-being, both by preventing chronic degenerative conditions, the infectiousness and pathogenicity of bacterial and viral diseases. SARS-CoV-2 should not be an exception. The human microbiota, forged by the first 1,000 days of life, is fundamental in shaping the health-disease trajectories, and by the everlasting exposome that is dramatically affected by the ecological disaster. Individual health is one world health whereas single and global well-being are interdependent in a space-time perspective.Conclusions: Is it not a convenient reductionism not to consider the COVID-19 emergency as a bio-social epiphenomenon of a far more devastating and multi-faceted crisis whose common denominator is the global biotic network loss of which humans are still part?
Collapse
Affiliation(s)
- Niccolò Giovannini
- Department of women-child-newborn Obstetrics and Gynaecology, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milano, Italy
| | - Debora Lattuada
- Department of women-child-newborn Obstetrics and Gynaecology, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milano, Italy
| | - Roberta Danusso
- Department of women-child-newborn Obstetrics and Gynaecology, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milano, Italy
| | - Enrico Ferrazzi
- Department of women-child-newborn Obstetrics and Gynaecology, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milano, Italy
| |
Collapse
|
6
|
Musiał N, Bogucka A, Tretiakow D, Skorek A, Ryl J, Czaplewska P. Proteomic analysis of sialoliths from calcified, lipid and mixed groups as a source of potential biomarkers of deposit formation in the salivary glands. Clin Proteomics 2023; 20:11. [PMID: 36949424 PMCID: PMC10035263 DOI: 10.1186/s12014-023-09402-3] [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: 01/12/2023] [Accepted: 03/08/2023] [Indexed: 03/24/2023] Open
Abstract
Salivary stones, also known as sialoliths, are formed in a pathological situation in the salivary glands. So far, neither the mechanism of their formation nor the factors predisposing to their formation are known despite several hypotheses. While they do not directly threaten human life, they significantly deteriorate the patient's quality of life. Although this is not a typical research material, attempts are made to apply various analytical tools to characterise sialoliths and search for the biomarkers in their proteomes. In this work, we used mass spectrometry and SWATH-MS qualitative and quantitative analysis to investigate the composition and select proteins that may contribute to solid deposits in the salivary glands. Twenty sialoliths, previously characterized spectroscopically and divided into the following groups: calcified (CAL), lipid (LIP) and mixed (MIX), were used for the study. Proteins unique for each of the groups were found, including: for the CAL group among them, e.g. proteins from the S100 group (S100 A8/A12 and P), mucin 7 (MUC7), keratins (KRT1/2/4/5/13), elastase (ELANE) or stomatin (STOM); proteins for the LIP group-transthyretin (TTR), lactotransferrin (LTF), matrix Gla protein (MPG), submandibular gland androgen-regulated protein 3 (SMR3A); mixed stones had the fewest unique proteins. Bacterial proteins present in sialoliths have also been identified. The analysis of the results indicates the possible role of bacterial infections, disturbances in calcium metabolism and neutrophil extracellular traps (NETs) in the formation of sialoliths.
Collapse
Affiliation(s)
- Natalia Musiał
- Intercollegiate Faculty of Biotechnology UG&MUG, University of Gdańsk, Abrahama 58, 80-307, Gdańsk, Poland.
| | - Aleksandra Bogucka
- Intercollegiate Faculty of Biotechnology UG&MUG, University of Gdańsk, Abrahama 58, 80-307, Gdańsk, Poland
- Institute of Biochemistry, Medical Faculty, Justus Liebig University of Giessen, Friedrichstrasse 24, 35392, Giessen, Germany
| | - Dmitry Tretiakow
- Department of Otolaryngology, Faculty of Medicine, Medical University of Gdańsk, Smoluchowskiego 17, 80-214, Gdańsk, Poland
| | - Andrzej Skorek
- Department of Otolaryngology, Faculty of Medicine, Medical University of Gdańsk, Smoluchowskiego 17, 80-214, Gdańsk, Poland
| | - Jacek Ryl
- Division of Electrochemistry and Surface Physical Chemistry, Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, G. Narutowicza 11/12, 80-233, Gdańsk, Poland
| | - Paulina Czaplewska
- Intercollegiate Faculty of Biotechnology UG&MUG, University of Gdańsk, Abrahama 58, 80-307, Gdańsk, Poland.
| |
Collapse
|
7
|
Caputo V, Libera M, Sisti S, Giuliani B, Diotti RA, Criscuolo E. The initial interplay between HIV and mucosal innate immunity. Front Immunol 2023; 14:1104423. [PMID: 36798134 PMCID: PMC9927018 DOI: 10.3389/fimmu.2023.1104423] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 01/17/2023] [Indexed: 02/01/2023] Open
Abstract
Human Immunodeficiency Virus (HIV) is still one of the major global health issues, and despite significant efforts that have been put into studying the pathogenesis of HIV infection, several aspects need to be clarified, including how innate immunity acts in different anatomical compartments. Given the nature of HIV as a sexually transmitted disease, one of the aspects that demands particular attention is the mucosal innate immune response. Given this scenario, we focused our attention on the interplay between HIV and mucosal innate response: the different mucosae act as a physical barrier, whose integrity can be compromised by the infection, and the virus-cell interaction induces the innate immune response. In addition, we explored the role of the mucosal microbiota in facilitating or preventing HIV infection and highlighted how its changes could influence the development of several opportunistic infections. Although recent progress, a proper characterization of mucosal innate immune response and microbiota is still missing, and further studies are needed to understand how they can be helpful for the formulation of an effective vaccine.
Collapse
|
8
|
Dixon M, Dunlop AL, Corwin EJ, Kramer MR. Joint effects of individual socioeconomic status and residential neighborhood context on vaginal microbiome composition. Front Public Health 2023; 11:1029741. [PMID: 36761121 PMCID: PMC9902942 DOI: 10.3389/fpubh.2023.1029741] [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: 08/27/2022] [Accepted: 01/03/2023] [Indexed: 01/26/2023] Open
Abstract
Introduction The vaginal microbiome is a dynamic ecosystem that is important for women's health. Its composition has been associated with risk for menopausal symptoms, sexually transmitted infections, gynecologic cancer, and preterm birth. Conventional risk factors for a vaginal microbiome linked with these adverse health outcomes include sexual behaviors, hygiene practices, individual social factors, and stress levels. However, there has been limited research on socio-contextual determinants, and whether neighborhood context modifies the association with individual socioeconomic factors. Methods Socioeconomically diverse pregnant African American women in Atlanta, Georgia (n = 439) provided residential addresses and first trimester vaginal swab samples, which underwent sequencing, taxonomic classification, and assignment into mutually exclusive CST (community state types) via hierarchical clustering. Linear probability models were used to estimate prevalence differences (PD) for the associations of neighborhood factors with vaginal microbiome CST and to evaluate for additive interaction with maternal level of education, health insurance type, and recruitment hospital. Results Factors such as higher (vs. lower) maternal education, private (vs. public) insurance, and private (vs. public) hospital were associated with higher prevalence of Lactobacillus-dominant vaginal microbiome CSTs typically associated with better health outcomes. When considering the joint effects of these individual socioeconomic status and residential neighborhood factors on vaginal microbiome CST, most combinations showed a greater than additive effect among the doubly exposed; however, in the case of local income homogeneity and local racial homogeneity, there was evidence of a crossover effect between those with less-advantaged individual socioeconomic status and those with more-advantaged individual socioeconomic status. Compared to women at the public hospital who lived in economically diverse neighborhoods, women at the private hospital who lived in economically diverse neighborhoods had a 21.9% higher prevalence of Lactobacillus-dominant CSTs, while women at the private hospital who lived in less economically diverse neighborhoods (the doubly exposed) had only an 11.7% higher prevalence of Lactobacillus-dominant CSTs, showing a crossover effect (interaction term p-value = 0.004). Discussion In this study, aspects of residential neighborhood context were experienced differently by women on the basis of their individual resources, and the joint effects of these exposures on vaginal microbiome CST showed a departure from simple additivity for some factors.
Collapse
Affiliation(s)
- Meredith Dixon
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, United States
| | - Anne L. Dunlop
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, United States,Department of Gynecology and Obstetrics, Emory University School of Medicine, Atlanta, GA, United States
| | | | - Michael R. Kramer
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, United States,*Correspondence: Michael R. Kramer ✉
| |
Collapse
|
9
|
Park SH, Lee ES, Park ST, Jeong SY, Yun Y, Kim Y, Jeong Y, Kang CH, Choi HJ. Efficacy and Safety of MED-01 Probiotics on Vaginal Health: A 12-Week, Multicenter, Randomized, Double-Blind, Placebo-Controlled Clinical Trial. Nutrients 2023; 15:nu15020331. [PMID: 36678202 PMCID: PMC9863863 DOI: 10.3390/nu15020331] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/02/2023] [Accepted: 01/04/2023] [Indexed: 01/12/2023] Open
Abstract
Bacterial vaginosis (BV) is the most common disease in women of childbearing age and is caused by the growth of abnormal microbiota in the vagina. Probiotic consumption can be an effective alternative treatment to preserve or improve vaginal health. In the present study, MED-01, a complex of five strains of probiotic candidates isolated from the vagina of Korean women, was used. This study was designed as a 12-week, randomized, multicenter, double-blind, placebo-controlled clinical trial to evaluate the efficacy and safety of MED-01 on vaginal health. A total of 101 reproductive-aged women with a Nugent score of 4-6 took MED-01 (5.0 × 109 CFU) or a placebo once a day, and 76 participants completed the procedure. MED-01 significantly reduced the Nugent score compared with the placebo. Quantitative PCR analysis confirmed that Lactobacillus plantarum was significantly increased in the vagina, whereas harmful bacteria such as Mobiluncus spp., Gardnerella vaginalis, and Atopobium vaginae were suppressed after 12 weeks of MED-01 ingestion. No adverse events to the test food supplements were observed in the participants. These results confirmed that MED-01 can be used as a probiotic for treating BV, as it improves the vaginal microbiota.
Collapse
Affiliation(s)
- Sung-Ho Park
- Hallym University Kangnam Sacred Heart Hospital, 665 Siheung-daero, Yeongdeungpo-gu, Seoul 07442, Republic of Korea
| | - Eun Sil Lee
- Soonchunhyang University Seoul Hospital, 59 Daesagwan-ro, Yongsan-gu, Seoul 04401, Republic of Korea
| | - Sung Taek Park
- Hallym University Kangnam Sacred Heart Hospital, 665 Siheung-daero, Yeongdeungpo-gu, Seoul 07442, Republic of Korea
| | - Soo Young Jeong
- Hallym University Kangnam Sacred Heart Hospital, 665 Siheung-daero, Yeongdeungpo-gu, Seoul 07442, Republic of Korea
| | - Yeoul Yun
- Soonchunhyang University Seoul Hospital, 59 Daesagwan-ro, Yongsan-gu, Seoul 04401, Republic of Korea
| | - YongGyeong Kim
- Mediogen, Co., Ltd., Biovalley 1-ro, Jecheon-si 27159, Chungcheongbuk-do, Republic of Korea
| | - Yulah Jeong
- Mediogen, Co., Ltd., Biovalley 1-ro, Jecheon-si 27159, Chungcheongbuk-do, Republic of Korea
| | - Chang-Ho Kang
- Mediogen, Co., Ltd., Biovalley 1-ro, Jecheon-si 27159, Chungcheongbuk-do, Republic of Korea
| | - Hyun Jin Choi
- Department of Obstetrics and Gynecology, College of Medicine Chung-Ang University, Chung-Ang University Gwangmyeong Hospital, 501 Iljik-dong, Gwangmyeong-si 14353, Gyeonggi-do, Republic of Korea
- Correspondence:
| |
Collapse
|
10
|
Gain a Baby Lose a Tooth-Is There an Association between Periodontitis and Preterm Birth? J Clin Med 2022; 11:jcm11237183. [PMID: 36498757 PMCID: PMC9739114 DOI: 10.3390/jcm11237183] [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: 11/02/2022] [Revised: 11/22/2022] [Accepted: 11/26/2022] [Indexed: 12/12/2022] Open
Abstract
Preterm birth serves as one of the leading causes of neonatal mortality worldwide. The underlying mechanisms that contribute to preterm birth are not yet fully understood. However, an association between periodontitis and preterm birth has been proposed. The periodontal status and presence of periodontal pathogens in women with different birth outcomes have been previously examined. However, varying definitions of periodontitis and different microbiological methods make their interpretation challenging. The aim of this case-control study on women with and without preterm birth was to investigate their periodontal status using the current classification system for periodontal diseases. Moreover, differences in the periodontal microbiome of the study participants were investigated. Therefore, we collected data on oral and periodontal parameters in 77 puerperal women divided into two groups based on gestational age at delivery: 33 patients with preterm birth (PTB, <37 weeks) and 44 patients with term birth (TB, >37 weeks). These data included pocket probing depth (PPD), clinical attachment loss (CAL), bleeding on probing (BOP), gingival-bleeding index, DMFT index, and gynecologic and dental history. In addition, their oral microbiome was explored. Median CAL and percentage PPD ≥ 4 mm were significantly higher in the PTB group than in the TB group (p = 0.0128 and p = 0.047, respectively). Birth weight was significantly higher in periodontally healthy women than in those with gingivitis (p = 0.0078) or periodontitis (p = 0.0127). The periodontal microbiome differed significantly between groups. Our results are underlining the possible association between periodontitis and preterm delivery. Women with periodontitis had babies with significantly lower birth weights. The microbiome varied between the groups.
Collapse
|
11
|
Dong B, Huang Y, Cai H, Chen Y, Li Y, Zou H, Lin W, Xue H, Feng A, Zhao H, Lu Y, Gao H, Mao X, Wu Z, Pan D, Sun P. Prevotella as the hub of the cervicovaginal microbiota affects the occurrence of persistent human papillomavirus infection and cervical lesions in women of childbearing age via host NF-κB/C-myc. J Med Virol 2022; 94:5519-5534. [PMID: 35835717 DOI: 10.1002/jmv.28001] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/11/2022] [Accepted: 07/13/2022] [Indexed: 12/15/2022]
Abstract
There is evidence that coinfection of cervicovaginal high-risk human papillomavirus (HR-HPV) and bacteria is common in women of childbearing age. However, the relationship between bacterial vaginosis (BV) and persistent HR-HPV infection in women of childbearing age and the underlying mechanisms remain unclear. In this study, we determined whether BV affects persistent HR-HPV infection in women aged 20-45 years and explored the possible mechanisms of their interactions. From January 1 to April 30, 2020, we recruited women aged 20-45 years with and without BV at a ratio of 1:2 from Fujian Maternity and Child Health Hospital. All women were followed up at 0, 12, and 24 months. A BV assay, HR-HPV genotyping and cervical cytology were performed at each follow-up. At 0 months, additional vaginal secretions and cervical exfoliated cells were collected for 16S ribosomal RNA sequencing, bacterial metabolite determination, and POU5F1B, C-myc, TLR4, NF-κB, and hTERT quantification. A total of 920 women were included. The abundance of Prevotella (p = 0.016) and Gardnerella (p = 0.027) were higher, whereas the abundance of Lactobacillus was lower (p = 0.001) in women with persistent HR-HPV infection and high-grade squamous intraepithelial lesions (HSIL). The abundance of Prevotella (p = 0.025) and Gardnerella (p = 0.018) increased in the vaginas of women with persistent HPV16 infection, whereas only the abundance of Prevotella (p = 0.026) was increased in women with persistent HPV18 infection. The abundance of Prevotella in the vagina was significantly positively correlated with the expression levels of TLR4, NF-κB, C-myc, and hTERT in host cervical cells (p < 0.05). Our findings suggest that overgrowth of Prevotella in the vagina may influence the occurrence of persistent HR-HPV infection-related cervical lesions through host NF-κB and C-myc signaling.
Collapse
Affiliation(s)
- Binhua Dong
- Laboratory of Gynecologic Oncology, Department of Gynecology, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, People's Republic of China.,Fujian Key Laboratory of Women and Children's Critical Diseases Research, Fuzhou, Fujian, People's Republic of China
| | - Yuxuan Huang
- Laboratory of Gynecologic Oncology, Department of Gynecology, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Hongning Cai
- Department of Gynecology, Maternal and Child Health Hospital of Hubei Province (Women and Children's Hospital of Hubei Province), Wuhan, Hubei, People's Republic of China
| | - Yaojia Chen
- Laboratory of Gynecologic Oncology, Department of Gynecology, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Ye Li
- Laboratory of Gynecologic Oncology, Department of Gynecology, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Huachun Zou
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen, People's Republic of China.,Kirby Institute, University of New South Wales, New South Wales, Sydney, Australia
| | - Wenyu Lin
- Laboratory of Gynecologic Oncology, Department of Gynecology, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Huifeng Xue
- Fujian Provincial Cervical Disease Diagnosis and Treatment Health Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Anping Feng
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen, People's Republic of China
| | - Heping Zhao
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen, People's Republic of China
| | - Yanfang Lu
- Clinical Laboratory, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Hangjing Gao
- Laboratory of Gynecologic Oncology, Department of Gynecology, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Xiaodan Mao
- Laboratory of Gynecologic Oncology, Department of Gynecology, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, People's Republic of China.,Fujian Key Laboratory of Women and Children's Critical Diseases Research, Fuzhou, Fujian, People's Republic of China
| | - Zhihui Wu
- Clinical Laboratory, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Diling Pan
- Department of Pathology, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Pengming Sun
- Laboratory of Gynecologic Oncology, Department of Gynecology, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, People's Republic of China.,Fujian Key Laboratory of Women and Children's Critical Diseases Research, Fuzhou, Fujian, People's Republic of China
| |
Collapse
|
12
|
Hu J, Wu Y, Quan L, Yang W, Lang J, Tian G, Meng B. Research of cervical microbiota alterations with human papillomavirus infection status and women age in Sanmenxia area of China. Front Microbiol 2022; 13:1004664. [PMID: 36312946 PMCID: PMC9608786 DOI: 10.3389/fmicb.2022.1004664] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 09/20/2022] [Indexed: 11/16/2022] Open
Abstract
Background Human papillomavirus (HPV) infection is the leading cause of cervical cancer. More and more studies discovered that cervical microbiota (CM) composition correlated with HPV infection and the development of cervical cancer. However, more studies need to be implemented to clarify the complex interaction between microbiota and the mechanism of disease development, especially in a specific area of China. Materials and methods In this study, 16S rDNA sequencing was applied on 276 Thin-prep Cytologic Test (TCT) samples of patients from the Sanmenxia area. Systematical analysis of the microbiota structure, diversity, group, and functional differences between different HPV infection groups and age groups, and co-occurrence relationships of the microbiota was carried out. Results The major microbiota compositions of all patients include Lactobacillus iners, Escherichia coli, Enterococcus faecalis, and Atopobium vaginae at species level, and Staphylococcus, Lactobacillus, Gardnerella, Bosea, Streptococcus, and Sneathia in genus level. Microbiota diversity was found significantly different between HPV-positive (Chao1 index: 98.8869, p < 0.01), unique-268 infected (infections with one of the HPV genotype 52, 56, or 58, 107.3885, p < 0.01), multi-268 infected (infections with two or more of HPV genotype 52, 56, and 58, 97.5337, p = 0.1012), other1 (94.9619, p < 0.05) groups and HPV-negative group (83.5299). Women older than 60 years old have higher microbiota diversity (108.8851, p < 0.01, n = 255) than younger women (87.0171, n = 21). The abundance of Gardnerella and Atopobium vaginae was significantly higher in the HPV-positive group than in the HPV-negative group, while Burkholderiaceae and Mycoplasma were more abundant in the unique-268 group compared to the negative group. Gamma-proteobacteria and Pseudomonas were found more abundant in older than 60 patients than younger groups. Kyoto Encyclopedia of Genes and Genomes (KEGG) and Clusters of Orthologous Groups (COG) analysis revealed the effects on metabolism by microbiota that the metabolism of cells, proteins, and genetic information-related pathways significantly differed between HPV-negative and positive groups. In contrast, lipid metabolism, signal transduction, and cell cycle metabolism pathway significantly differed between multi-268 and negative groups. Conclusion The HPV infection status and age of women were related to CM’s diversity and function pathways. The complex CM co-occurrent relationships and their mechanism in disease development need to be further investigated.
Collapse
Affiliation(s)
- Jintao Hu
- Faculty of Engineering and Information Technology, The University of Melbourne, Parkville, VIC, Australia
- Genesis (Beijing) Co., Ltd., Beijing, China
| | - Yuhan Wu
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Lili Quan
- Department of Gynecology, Sanmenxia Central Hospital of Henan University of Science and Technology, Sanmenxia, Henan, China
| | | | | | - Geng Tian
- Genesis (Beijing) Co., Ltd., Beijing, China
- Geng Tian,
| | - Bo Meng
- Genesis (Beijing) Co., Ltd., Beijing, China
- *Correspondence: Bo Meng,
| |
Collapse
|
13
|
Dhumad Hameedi H, Al-Shammari ZAD. Aerobic Bacterial Vaginosis and Lactobacillus Species Associated with Cytomegalovirus in Abortion. ARCHIVES OF RAZI INSTITUTE 2022; 77:1447-1452. [PMID: 36883142 PMCID: PMC9985791 DOI: 10.22092/ari.2022.357615.2068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 04/30/2022] [Indexed: 03/09/2023]
Abstract
Abortion is a common complication in the life cycle of pregnancy. Based on the American College of Obstetricians and Gynecologists, spontaneous abortion is defined as the expulsion of an embryo or the extraction of a fetus at the age of 20-22 weeks of pregnancy. This study aimed to investigate the relationship between socioeconomic factors and bacterial vaginosis (BV) in women having an abortion. As a secondary aim, it attempted to detect common bacteria that cause vaginosis associated with miscarriage and are related to Cytomegalovirus (CMV) and Lactobacillus species (spp.). A total of 113 high vaginal swabs were taken from women having an abortion. Some variables that have been investigated in this study include age, education, and infection. After the vaginal discharge collection, the smear was prepared. Afterward, one or two drops of normal saline solution were put on the prepared smear with a cover slip, and then, they were examined under a microscope. Gram stain kits (Hi-media, India), were used to differentiate between the shapes of bacterial isolates. The wet mount technique was then utilized for the detection of Trichomonas vaginalis and aerobic BV. All the samples were used for smear gram staining and were cultured on blood agar, chocolate agar, as well as MacConkey agar. Biochemical examinations performed on suspicious cultures included the Urease test, Oxidase test, Coagulase test, and Catalase test. In the present study, the participants' age ranged from 14 to 45 years. Women aged 24-34 years had a high rate of miscarriage, determined at 48 (42.5%), which was considered a high incidence rate. The results showed that 28.6% of the studied population experienced abortion once and 71.4% of them experienced it twice due to aerobic BV. The recorded data also revealed that 50% of the studied population, who were infected with CMV or Trichomonas vaginalis, experienced abortion once and the other 50% experienced it twice. From 102 samples infected with Lactobacillus spp., 45.17% experienced abortion once and 42.2% experienced it twice.
Collapse
|
14
|
Li Y, Wang Y, Liu J. Genomic Insights Into the Interspecific Diversity and Evolution of Mobiluncus, a Pathogen Associated With Bacterial Vaginosis. Front Microbiol 2022; 13:939406. [PMID: 35865929 PMCID: PMC9294530 DOI: 10.3389/fmicb.2022.939406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 06/16/2022] [Indexed: 11/13/2022] Open
Abstract
Bacterial vaginosis (BV) is a common vaginal infection and has been associated with increased risk for a wide array of health issues. BV is linked with a variety of heterogeneous pathogenic anaerobic bacteria, among which Mobiluncus is strongly associated with BV diagnosis. However, their genetic features, pathogenicity, interspecific diversity, and evolutionary characters have not been illustrated at genomic level. The current study performed phylogenomic and comparative genomic analyses of Mobiluncus. Phylogenomic analyses revealed remarkable phylogenetic distinctions among different species. Compared with M. curtisii, M. mulieris had a larger genome and pangenome size with more insertion sequences but less CRISPR-Cas systems. In addition, these two species were diverse in profile of virulence factors, but harbored similar antibiotic resistance genes. Statistically different functional genome profiles between strains from the two species were determined, as well as correlations of some functional genes/pathways with putative pathogenicity. We also showed that high levels of horizontal gene transfer might be an important strategy for species diversification and pathogenicity. Collectively, this study provides the first genome sequence level description of Mobiluncus, and may shed light on its virulence/pathogenicity, functional diversification, and evolutionary dynamics. Our study could facilitate the further investigations of this important pathogen, and might improve the future treatment of BV.
Collapse
|
15
|
López-Filloy M, Cortez FJ, Gheit T, Cruz y Cruz O, Cruz-Talonia F, Chávez-Torres M, Arteaga-Gómez C, Mancilla-Herrera I, Montesinos JJ, Cortés-Morales VA, Aguilar C, Tommasino M, Pinto-Cardoso S, Rocha-Zavaleta L. Altered Vaginal Microbiota Composition Correlates With Human Papillomavirus and Mucosal Immune Responses in Women With Symptomatic Cervical Ectopy. Front Cell Infect Microbiol 2022; 12:884272. [PMID: 35656032 PMCID: PMC9152460 DOI: 10.3389/fcimb.2022.884272] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 04/19/2022] [Indexed: 01/04/2023] Open
Abstract
Cervical ectopy is a benign condition of the lower genital tract that is frequently detected in women of reproductive age. Although cervical ectopy is regarded as a physiological condition, some women experience symptoms such as leucorrhoea, persistent bleeding and recurrent vaginal infections that require medical intervention. Cervical ectopy has not been linked to cervical cancer, but it is thought to facilitate the acquisition of sexually transmitted diseases (STDs), like Human Papillomavirus (HPV) infection, as it provides a favorable microenvironment for virus infection and dissemination. We and others have described the presence of oncogenic HPV types in women with symptomatic cervical ectopy. The relevance of this finding and the impact of symptomatic cervical ectopy on the cervicovaginal microenvironment (vaginal microbiota, immune and inflammatory responses) are currently unknown. To shed some light into the interplay between HPV, the vaginal microbiota and mucosal immune and inflammatory responses in the context of this condition, we enrolled 156 women with symptomatic cervical ectopy and determined the presence of HPV using a type-specific multiplex genotyping assay. Overall, HPV was detected in 54.48% women, oncogenic HPV types were found in more than 90% of HPV-positive cases. The most prevalent HPV types were HPV16 (29.4%), HPV31 (21.17%) and HPV18 (15.29%). Next, we evaluated the vaginal microbial composition and diversity by 16S rDNA sequencing, and quantified levels of cytokines and chemokines by flow cytometry using bead-based multiplex assays in a sub-cohort of 63 women. IL-21 and CXCL9 were significantly upregulated in HPV-positive women (p=0.0002 and p=0.013, respectively). Women with symptomatic cervical ectopy and HPV infection had increased diversity (p<0.001), and their vaginal microbiota was enriched in bacterial vaginosis-associated anaerobes (Sneathia, Shuttleworthia, Prevotella, and Atopobium) and depleted in Lactobacillus spp. Furthermore, the vaginal microbiota of women with symptomatic cervical ectopy and HPV infection correlated with vaginal inflammation (IL-1β, rho=0.56, p=0.0004) and increased mucosal homeostatic response (IL-22, rho=0.60, p=0.0001). Taken together, our results suggest that HPV infection and dysbiotic vaginal communities could favor a vaginal microenvironment that might delay the recovery of the cervical epithelium in women with symptomatic cervical ectopy and favor STDs acquisition.
Collapse
Affiliation(s)
- Mariana López-Filloy
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, Mexico
| | - Flor J. Cortez
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, Mexico
| | - Tarik Gheit
- International Agency for Research on Cancer, Lyon, France
| | - Omar Cruz y Cruz
- Clínica de Colposcopia Fundación “Cruz Talonia”, Ciudad de Mexico, Mexico
| | | | - Monserrat Chávez-Torres
- Centro de Investigación en Enfermedades Infecciosas, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Ciudad de México, Mexico
| | - Cristina Arteaga-Gómez
- Deparatamento de Oncología, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Ciudad de México, Mexico
| | - Ismael Mancilla-Herrera
- Departamento de Infectología e Inmunología, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Ciudad de México, Mexico
| | - Juan J. Montesinos
- Mesenchymal Stem Cells Laboratory, Oncology Research Unit, Oncology Hospital, National Medical Center, Instituto Mexicano del Seguro Social (IMSS), Mexico City, Mexico
| | - Víctor Adrián Cortés-Morales
- Mesenchymal Stem Cells Laboratory, Oncology Research Unit, Oncology Hospital, National Medical Center, Instituto Mexicano del Seguro Social (IMSS), Mexico City, Mexico
| | - Cecilia Aguilar
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, Mexico
| | | | - Sandra Pinto-Cardoso
- Centro de Investigación en Enfermedades Infecciosas, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Ciudad de México, Mexico
| | - Leticia Rocha-Zavaleta
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, Mexico
| |
Collapse
|
16
|
Lledo B, Fuentes A, Lozano FM, Cascales A, Morales R, Hortal M, Sellers F, Palacios-Marques A, Bermejo R, Quereda F, Martínez-Escoriza JC, Bernabeu R, Bernabeu A. Identification of vaginal microbiome associated with IVF pregnancy. Sci Rep 2022; 12:6807. [PMID: 35474343 PMCID: PMC9042930 DOI: 10.1038/s41598-022-10933-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 04/15/2022] [Indexed: 12/14/2022] Open
Abstract
The factors that cause a preterm birth (PTB) are not completely understood up to date. Moreover, PTB is more common in pregnancies achieved by in-vitro fertilization (IVF) than in spontaneous pregnancies. Our aim was to compare the composition of vaginal microbiome at 12 weeks of gestation between women who conceived naturally or through IVF in order to study whether IVF PTB-risk could be related to vaginal microbiome composition. We performed an observational, prospective and multicentre study among two public hospitals and a fertility private clinic in Spain. Vaginal swabs from 64 pregnant women at 12 weeks of gestation were collected to analyse the microbiome composition by sequencing the V3-V4 region of the 16S rRNA. Our results showed that the vaginal microbiome signature at 12 weeks of pregnancy was different from women who conceived naturally or through IVF. The beta diversity and the genus composition were different between both cohorts. Gardnerella, Neisseria, Prevotella, and Staphylococcus genus were enriched genus in the vaginal microbiome from the IVF group, allowing us to create a balance model to predict both cohorts. Moreover, at species level the L. iners abundance was higher and L. gasseri was lower in the IVF group. As a conclusion, our findings were consistent with a proposed framework in which IVF pregnancy are related to risk for preterm birth (PTB) suggesting vaginal microbiome could be the reason to the relation between IVF pregnancy and risk for PTB.
Collapse
Affiliation(s)
- B Lledo
- Molecular Biology, Instituto Bernabeu of Fertility and Gynecology, Avda. Albufereta, 31, 03016, Alicante, Spain.
| | - A Fuentes
- Reproductive Medicine, Instituto Bernabeu of Fertility and Gynecology, 03016, Alicante, Spain
| | - F M Lozano
- Molecular Biology, Instituto Bernabeu of Fertility and Gynecology, Avda. Albufereta, 31, 03016, Alicante, Spain
| | - A Cascales
- Molecular Biology, Instituto Bernabeu of Fertility and Gynecology, Avda. Albufereta, 31, 03016, Alicante, Spain
| | - R Morales
- Molecular Biology, Instituto Bernabeu of Fertility and Gynecology, Avda. Albufereta, 31, 03016, Alicante, Spain
| | - M Hortal
- Molecular Biology, Instituto Bernabeu of Fertility and Gynecology, Avda. Albufereta, 31, 03016, Alicante, Spain
| | - F Sellers
- Reproductive Medicine, Instituto Bernabeu of Fertility and Gynecology, 03016, Alicante, Spain.,Obstetrics, Instituto Bernabeu of Fertility and Gynecology, 03016, Alicante, Spain
| | - A Palacios-Marques
- Obstetrics, Instituto Bernabeu of Fertility and Gynecology, 03016, Alicante, Spain.,Obstetrics and Gynecology, Hospital General Universitario de Alicante, 03010, Alicante, Spain.,ISABIAL (Instituto de Investigación Sanitaria y Biomédica de Alicante), Alicante, Spain
| | - R Bermejo
- Division of Gynecology, Hospital Universitario San Juan de Alicante, 03550, Alicante, Spain.,Division of Gynecology, School of Medicine, Miguel Hernández University, Alicante, Spain
| | - F Quereda
- Division of Gynecology, Hospital Universitario San Juan de Alicante, 03550, Alicante, Spain.,Division of Gynecology, School of Medicine, Miguel Hernández University, Alicante, Spain
| | - J C Martínez-Escoriza
- Obstetrics and Gynecology, Hospital General Universitario de Alicante, 03010, Alicante, Spain.,ISABIAL (Instituto de Investigación Sanitaria y Biomédica de Alicante), Alicante, Spain
| | - R Bernabeu
- Reproductive Medicine, Instituto Bernabeu of Fertility and Gynecology, 03016, Alicante, Spain
| | - A Bernabeu
- Reproductive Medicine, Instituto Bernabeu of Fertility and Gynecology, 03016, Alicante, Spain
| |
Collapse
|
17
|
Abou Chacra L, Fenollar F, Diop K. Bacterial Vaginosis: What Do We Currently Know? Front Cell Infect Microbiol 2022; 11:672429. [PMID: 35118003 PMCID: PMC8805710 DOI: 10.3389/fcimb.2021.672429] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 12/17/2021] [Indexed: 12/26/2022] Open
Abstract
The vaginal microbiome is a well-defined compartment of the human microbiome. It has unique conditions, characterized by the dominance of one bacterial species, the Lactobacilli. This microbiota manifests itself by a low degree of diversity and by a strong dynamic of change in its composition under the influence of various exogenous and endogenous factors. The increase in diversity may paradoxically be associated with dysbiosis, such as bacterial vaginosis (BV). BV is the result of a disturbance in the vaginal ecosystem; i.e., a sudden replacement of Lactobacilli by anaerobic bacteria such as Gardnerella vaginalis, Atopobium vaginae, Ureaplasma urealyticum, Mycoplasma hominis, and others. It is the most common cause of vaginal discharge in women of childbearing age, approximately 30% of all causes. The etiology of this dysbiosis remains unknown, but its health consequences are significant, including obstetrical complications, increased risk of sexually transmitted infections and urogenital infections. Its diagnosis is based on Amsel’s clinical criteria and/or a gram stain based on the Nugent score. While both of these methods have been widely applied worldwide for approximately three decades, Nugent score are still considered the “gold standard” of BV diagnostic tools. Given the limitations of these tools, methods based on molecular biology have been developed as alternative rational strategies for the diagnosis of BV. The treatment of BV aims at restoring the balance of the vaginal flora to stop the proliferation of harmful microorganisms. Prescription of antibiotics such as metronidazole, clindamycin, etc. is recommended. Faced with the considerable uncertainty about the cause of BV, the high rate of recurrence, the unacceptable treatment options, and clinical management which is often insensitive and inconsistent, research on this topic is intensifying. Knowledge of its composition and its associated variations represents the key element in improving the therapeutic management of patients with the most suitable treatments possible.
Collapse
Affiliation(s)
- Linda Abou Chacra
- Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - Florence Fenollar
- Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - Khoudia Diop
- Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
- *Correspondence: Khoudia Diop,
| |
Collapse
|
18
|
McKenzie R, Maarsingh JD, Łaniewski P, Herbst-Kralovetz MM. Immunometabolic Analysis of Mobiluncus mulieris and Eggerthella sp. Reveals Novel Insights Into Their Pathogenic Contributions to the Hallmarks of Bacterial Vaginosis. Front Cell Infect Microbiol 2022; 11:759697. [PMID: 35004344 PMCID: PMC8733642 DOI: 10.3389/fcimb.2021.759697] [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: 08/16/2021] [Accepted: 12/06/2021] [Indexed: 01/11/2023] Open
Abstract
The cervicovaginal microbiome plays an important role in protecting women from dysbiosis and infection caused by pathogenic microorganisms. In healthy reproductive-age women the cervicovaginal microbiome is predominantly colonized by protective Lactobacillus spp. The loss of these protective bacteria leads to colonization of the cervicovaginal microenvironment by pathogenic microorganisms resulting in dysbiosis and bacterial vaginosis (BV). Mobiluncus mulieris and Eggerthella sp. are two of the many anaerobes that can contribute to BV, a condition associated with multiple adverse obstetric and gynecological outcomes. M. mulieris has been linked to high Nugent scores (relating to BV morphotypes) and preterm birth (PTB), whilst some bacterial members of the Eggerthellaceae family are highly prevalent in BV, and identified in ~85-95% of cases. The functional impact of M. mulieris and Eggerthella sp. in BV is still poorly understood. To determine the individual immunometabolic contributions of Eggerthella sp. and M. mulieris within the cervicovaginal microenvironment, we utilized our well-characterized human three-dimensional (3-D) cervical epithelial cell model in combination with multiplex immunoassays and global untargeted metabolomics approaches to identify key immune mediators and metabolites related to M. mulieris and Eggerthella sp. infections. We found that infection with M. mulieris significantly elevated multiple proinflammatory markers (IL-6, IL-8, TNF-α and MCP-1) and altered metabolites related to energy metabolism (nicotinamide and succinate) and oxidative stress (cysteinylglycine, cysteinylglycine disulfide and 2-hydroxygluatrate). Eggerthella sp. infection significantly elevated multiple sphingolipids and glycerolipids related to epithelial barrier function, and biogenic amines (putrescine and cadaverine) associated with elevated vaginal pH, vaginal amine odor and vaginal discharge. Our study elucidated that M. mulieris elevated multiple proinflammatory markers relating to PTB and STI acquisition, as well as altered energy metabolism and oxidative stress, whilst Eggerthella sp. upregulated multiple biogenic amines associated with the clinical diagnostic criteria of BV. Future studies are needed to evaluate how these bacteria interact with other BV-associated bacteria within the cervicovaginal microenvironment.
Collapse
Affiliation(s)
- Ross McKenzie
- Department of Obstetrics and Gynecology, College of Medicine-Phoenix, University of Arizona, Phoenix, AZ, United States.,Department of Biology and Biochemistry, University of Bath, Bath, United Kingdom
| | - Jason D Maarsingh
- Department of Obstetrics and Gynecology, College of Medicine-Phoenix, University of Arizona, Phoenix, AZ, United States
| | - Paweł Łaniewski
- Department of Basic Medical Sciences, College of Medicine-Phoenix, University of Arizona, Phoenix, AZ, United States
| | - Melissa M Herbst-Kralovetz
- Department of Obstetrics and Gynecology, College of Medicine-Phoenix, University of Arizona, Phoenix, AZ, United States.,Department of Basic Medical Sciences, College of Medicine-Phoenix, University of Arizona, Phoenix, AZ, United States
| |
Collapse
|
19
|
LAWLOR ML, GOLDKAMP JM, BOERRIGTER A, JAKES C, PYON R, VRICELLA LK, GROSS GA, AURORA R. Cervicovaginal microbiome in twin versus singleton gestations. Am J Obstet Gynecol MFM 2022; 4:100579. [DOI: 10.1016/j.ajogmf.2022.100579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 01/11/2022] [Accepted: 01/27/2022] [Indexed: 11/16/2022]
|
20
|
Salliss ME, Farland LV, Mahnert ND, Herbst-Kralovetz MM. The role of gut and genital microbiota and the estrobolome in endometriosis, infertility and chronic pelvic pain. Hum Reprod Update 2021; 28:92-131. [PMID: 34718567 DOI: 10.1093/humupd/dmab035] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 08/25/2021] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Endometriosis is a chronic, burdensome condition that is historically understudied. Consequently, there is a lack of understanding of the etiology of the disease and its associated symptoms, including infertility and chronic pelvic pain (CPP). Endometriosis development is influenced by estrogen metabolism and inflammation, which are modulated by several factors including the microbiome and the estrobolome (the collection of genes encoding estrogen-metabolizing enzymes in the gut microbiome). Therefore, there is increasing interest in understanding the role of microbiota in endometriosis etiology. OBJECTIVE AND RATIONALE To date, there is no cure for endometriosis and treatment options often are ineffective. This manuscript will review the potential relationship between the microbiome and endometriosis, infertility and CPP and highlight the available data on the microbiome in relation to endometriosis and its related symptoms. The overarching goal of this manuscript is to inform future microbiome research that will lead to a deeper understanding of the etiology of the disease and possible diagnostic modalities and treatments. The potential impact of the microbiome on estrogen regulation modulated by the estrobolome, as well as inflammation and other endometriosis-promoting mechanisms within the genital tract, will be reviewed. The methodological limitations of microbiome-related studies will be critically assessed to provide improved guidelines for future microbiome and clinical studies. SEARCH METHODS PubMed databases were searched using the following keywords: endometriosis AND microbiome, infertility AND microbiome, pelvic pain AND microbiome, IVF (in-vitro fertilization) AND microbiome, endometriosis AND infertility. Clinical and preclinical animal trials that were eligible for review, and related to microbiome and endometriosis, infertility or CPP were included. All available manuscripts were published in 2002-2021. OUTCOMES In total, 28 clinical and 6 animal studies were included in the review. In both human and animal studies, bacteria were enriched in endometriosis groups, although there was no clear consensus on specific microbiota compositions that were associated with endometriosis, and no studies included infertility or CPP with endometriosis. However, bacterial vaginosis-associated bacteria and Lactobacillus depletion in the cervicovaginal microbiome were associated with endometriosis and infertility in the majority (23/28) of studies. Interpretation of endometrial studies is limited owing to a variety of methodological factors, discussed in this review. In addition, metadata outlining antibiotic usage, age, race/ethnicity, menopausal status and timing of sample collection in relation to diagnosis of endometriosis was not consistently reported. Animal studies (6/6) support a bidirectional relationship between the gut microbiota and endometriosis onset and progression. WIDER IMPLICATIONS There is evidence that a dysbiotic gut or genital microbiota is associated with multiple gynecologic conditions, with mounting data supporting an association between the microbiome and endometriosis and infertility. These microbiomes likely play a role in the gut-brain axis, which further supports a putative association with the spectrum of symptoms associated with endometriosis, including infertility and CPP. Collectively, this review highlights the demand for more rigorous and transparent methodology and controls, consistency across the field, and inclusion of key demographic and clinical characteristics of disease and comparison participants. Rigorous study designs will allow for a better understanding of the potential role of the microbiome in endometriosis etiology and the relationship to other disorders of the female reproductive tract.
Collapse
Affiliation(s)
- Mary E Salliss
- Department of Obstetrics and Gynecology, University of Arizona-College of Medicine, Phoenix, AZ, USA.,Department of Biology and Biochemistry, Bath University, Bath, UK
| | - Leslie V Farland
- Department of Epidemiology and Biostatistics, Mel and Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ, USA.,Department of Obstetrics and Gynecology, University of Arizona-College of Medicine Tucson, Tucson, AZ, USA
| | - Nichole D Mahnert
- Department of Obstetrics and Gynecology, University of Arizona-College of Medicine, Phoenix, AZ, USA.,Department of Obstetrics and Gynecology, Banner-University Medical Center Phoenix, Phoenix, AZ, USA
| | - Melissa M Herbst-Kralovetz
- Department of Obstetrics and Gynecology, University of Arizona-College of Medicine, Phoenix, AZ, USA.,Department of Basic Medical Sciences, University of Arizona-College of Medicine, Phoenix, AZ, USA
| |
Collapse
|
21
|
Vaginal microbiome topic modeling of laboring Ugandan women with and without fever. NPJ Biofilms Microbiomes 2021; 7:75. [PMID: 34508087 PMCID: PMC8433417 DOI: 10.1038/s41522-021-00244-1] [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] [Received: 02/10/2021] [Accepted: 08/13/2021] [Indexed: 12/12/2022] Open
Abstract
The composition of the maternal vaginal microbiome influences the duration of pregnancy, onset of labor, and even neonatal outcomes. Maternal microbiome research in sub-Saharan Africa has focused on non-pregnant and postpartum composition of the vaginal microbiome. Here we aimed to illustrate the relationship between the vaginal microbiome of 99 laboring Ugandan women and intrapartum fever using routine microbiology and 16S ribosomal RNA gene sequencing from two hypervariable regions (V1–V2 and V3–V4). To describe the vaginal microbes associated with vaginal microbial communities, we pursued two approaches: hierarchical clustering methods and a novel Grades of Membership (GoM) modeling approach for vaginal microbiome characterization. Leveraging GoM models, we created a basis composed of a preassigned number of microbial topics whose linear combination optimally represents each patient yielding more comprehensive associations and characterization between maternal clinical features and the microbial communities. Using a random forest model, we showed that by including microbial topic models we improved upon clinical variables to predict maternal fever. Overall, we found a higher prevalence of Granulicatella, Streptococcus, Fusobacterium, Anaerococcus, Sneathia, Clostridium, Gemella, Mobiluncus, and Veillonella genera in febrile mothers, and higher prevalence of Lactobacillus genera (in particular L. crispatus and L. jensenii), Acinobacter, Aerococcus, and Prevotella species in afebrile mothers. By including clinical variables with microbial topics in this model, we observed young maternal age, fever reported earlier in the pregnancy, longer labor duration, and microbial communities with reduced Lactobacillus diversity were associated with intrapartum fever. These results better defined relationships between the presence or absence of intrapartum fever, demographics, peripartum course, and vaginal microbial topics, and expanded our understanding of the impact of the microbiome on maternal and potentially neonatal outcome risk.
Collapse
|
22
|
Joseph RJ, Ser HL, Kuai YH, Tan LTH, Arasoo VJT, Letchumanan V, Wang L, Pusparajah P, Goh BH, Ab Mutalib NS, Chan KG, Lee LH. Finding a Balance in the Vaginal Microbiome: How Do We Treat and Prevent the Occurrence of Bacterial Vaginosis? Antibiotics (Basel) 2021; 10:719. [PMID: 34203908 PMCID: PMC8232816 DOI: 10.3390/antibiotics10060719] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 05/27/2021] [Accepted: 06/10/2021] [Indexed: 12/30/2022] Open
Abstract
Bacterial vaginosis (BV) has been reported in one-third of women worldwide at different life stages, due to the complex balance in the ecology of the vaginal microbiota. It is a common cause of abnormal vaginal discharge and is associated with other health issues. Since the first description of anaerobic microbes associated with BV like Gardnerella vaginalis in the 1950s, researchers have stepped up the game by incorporating advanced molecular tools to monitor and evaluate the extent of dysbiosis within the vaginal microbiome, particularly on how specific microbial population changes compared to a healthy state. Moreover, treatment failure and BV recurrence rate remain high despite the standard antibiotic treatment. Consequently, researchers have been probing into alternative or adjunct treatments, including probiotics or even vaginal microbiota transplants, to ensure successful treatment outcomes and reduce the colonization by pathogenic microbes of the female reproductive tract. The current review summarizes the latest findings in probiotics use for BV and explores the potential of vaginal microbiota transplants in restoring vaginal health.
Collapse
Affiliation(s)
- Rebecca Jane Joseph
- Novel Bacteria and Drug Discovery Research Group (NBDD), Microbes and Bioresource Research Strength (MBRS), Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Malaysia; (R.J.J.); (H.-L.S.); (Y.-H.K.); (L.T.-H.T.); (V.L.); (P.P.); (N.-S.A.M.)
| | - Hooi-Leng Ser
- Novel Bacteria and Drug Discovery Research Group (NBDD), Microbes and Bioresource Research Strength (MBRS), Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Malaysia; (R.J.J.); (H.-L.S.); (Y.-H.K.); (L.T.-H.T.); (V.L.); (P.P.); (N.-S.A.M.)
| | - Yi-He Kuai
- Novel Bacteria and Drug Discovery Research Group (NBDD), Microbes and Bioresource Research Strength (MBRS), Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Malaysia; (R.J.J.); (H.-L.S.); (Y.-H.K.); (L.T.-H.T.); (V.L.); (P.P.); (N.-S.A.M.)
| | - Loh Teng-Hern Tan
- Novel Bacteria and Drug Discovery Research Group (NBDD), Microbes and Bioresource Research Strength (MBRS), Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Malaysia; (R.J.J.); (H.-L.S.); (Y.-H.K.); (L.T.-H.T.); (V.L.); (P.P.); (N.-S.A.M.)
- Clinical School Johor Bahru, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Johor Bahru 80100, Malaysia;
| | | | - Vengadesh Letchumanan
- Novel Bacteria and Drug Discovery Research Group (NBDD), Microbes and Bioresource Research Strength (MBRS), Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Malaysia; (R.J.J.); (H.-L.S.); (Y.-H.K.); (L.T.-H.T.); (V.L.); (P.P.); (N.-S.A.M.)
| | - Lijing Wang
- Vascular Biology Research Institute, Guangdong Pharmaceutical University, Guangzhou 510006, China;
| | - Priyia Pusparajah
- Novel Bacteria and Drug Discovery Research Group (NBDD), Microbes and Bioresource Research Strength (MBRS), Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Malaysia; (R.J.J.); (H.-L.S.); (Y.-H.K.); (L.T.-H.T.); (V.L.); (P.P.); (N.-S.A.M.)
| | - Bey-Hing Goh
- Biofunctional Molecule Exploratory Research Group (BMEX), School of Pharmacy, Monash University Malaysia, Bandar Sunway 47500, Malaysia;
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Nurul-Syakima Ab Mutalib
- Novel Bacteria and Drug Discovery Research Group (NBDD), Microbes and Bioresource Research Strength (MBRS), Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Malaysia; (R.J.J.); (H.-L.S.); (Y.-H.K.); (L.T.-H.T.); (V.L.); (P.P.); (N.-S.A.M.)
- UKM Medical Molecular Biology Institute (UMBI), UKM Medical Centre, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
| | - Kok-Gan Chan
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia
- International Genome Centre, Jiangsu University, Zhenjiang 212013, China
| | - Learn-Han Lee
- Novel Bacteria and Drug Discovery Research Group (NBDD), Microbes and Bioresource Research Strength (MBRS), Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Malaysia; (R.J.J.); (H.-L.S.); (Y.-H.K.); (L.T.-H.T.); (V.L.); (P.P.); (N.-S.A.M.)
| |
Collapse
|
23
|
Dunlop AL, Satten GA, Hu YJ, Knight AK, Hill CC, Wright ML, Smith AK, Read TD, Pearce BD, Corwin EJ. Vaginal Microbiome Composition in Early Pregnancy and Risk of Spontaneous Preterm and Early Term Birth Among African American Women. Front Cell Infect Microbiol 2021; 11:641005. [PMID: 33996627 PMCID: PMC8117784 DOI: 10.3389/fcimb.2021.641005] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 04/06/2021] [Indexed: 12/15/2022] Open
Abstract
Objective To evaluate the association between the early pregnancy vaginal microbiome and spontaneous preterm birth (sPTB) and early term birth (sETB) among African American women. Methods Vaginal samples collected in early pregnancy (8-14 weeks' gestation) from 436 women enrolled in the Emory University African American Vaginal, Oral, and Gut Microbiome in Pregnancy Study underwent 16S rRNA gene sequencing of the V3-V4 region, taxonomic classification, and community state type (CST) assignment. We compared vaginal CST and abundance of taxa for women whose pregnancy ended in sPTB (N = 44) or sETB (N= 84) to those who delivered full term (N = 231). Results Nearly half of the women had a vaginal microbiome classified as CST IV (Diverse CST), while one-third had CST III (L. iners dominated) and just 16% had CST I, II, or V (non-iners Lactobacillus dominated). Compared to vaginal CST I, II, or V (non-iners Lactobacillus dominated), both CST III (L. iners dominated) and CST IV (Diverse) were associated with sPTB with an adjusted odds ratio (95% confidence interval) of 4.1 (1.1, infinity) and 7.7 (2.2, infinity), respectively, in multivariate logistic regression. In contrast, no vaginal CST was associated with sETB. The linear decomposition model (LDM) based on amplicon sequence variant (ASV) relative abundance found a significant overall effect of the vaginal microbiome on sPTB (p=0.034) but not sETB (p=0.320), whereas the LDM based on presence/absence of ASV found no overall effect on sPTB (p=0.328) but a significant effect on sETB (p=0.030). In testing for ASV-specific effects, the LDM found that no ASV was significantly associated with sPTB considering either relative abundance or presence/absence data after controlling for multiple comparisons (FDR 10%), although in marginal analysis the relative abundance of Gardnerella vaginalis (p=0.011), non-iners Lactobacillus (p=0.016), and Mobiluncus curtisii (p=0.035) and the presence of Atopobium vaginae (p=0.049), BVAB2 (p=0.024), Dialister microaerophilis (p=0.011), and Prevotella amnii (p=0.044) were associated with sPTB. The LDM identified the higher abundance of 7 ASVs and the presence of 13 ASVs, all commonly residents of the gut, as associated with sETB at FDR < 10%. Conclusions In this cohort of African American women, an early pregnancy vaginal CST III or IV was associated with an increased risk of sPTB but not sETB. The relative abundance and presence of distinct taxa within the early pregnancy vaginal microbiome was associated with either sPTB or sETB.
Collapse
Affiliation(s)
- Anne L. Dunlop
- Emory University Nell Hodgson Woodruff School of Nursing, Atlanta, GA, United States
- Department of Family & Preventive Medicine, Emory University School of Medicine, Atlanta, GA, United States
| | - Glen A. Satten
- Department of Gynecology and Obstetrics, Emory University School of Medicine, Atlanta, GA, United States
- Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA, United States
| | - Yi-Juan Hu
- Department of Biostatistics and Bioinformatics, Emory University Rollins School of Public Health, Atlanta, GA, United States
| | - Anna K. Knight
- Department of Gynecology and Obstetrics, Emory University School of Medicine, Atlanta, GA, United States
| | - Cherie C. Hill
- Department of Gynecology and Obstetrics, Emory University School of Medicine, Atlanta, GA, United States
| | - Michelle L. Wright
- School of Nursing, University of Texas at Austin, Austin, TX, United States
| | - Alicia K. Smith
- Department of Gynecology and Obstetrics, Emory University School of Medicine, Atlanta, GA, United States
| | - Timothy D. Read
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA, United States
| | - Bradley D. Pearce
- Department of Epidemiology, Emory University Rollins School of Public Health, Atlanta, GA, United States
| | | |
Collapse
|
24
|
Narayanan AP, Latika A, Nair AS, Ajeesh P, Kumar NS, Babu M. Role of Gut Microbiota in Human Health and Diseases. CURRENT NUTRITION & FOOD SCIENCE 2021. [DOI: 10.2174/1573401316999200930130101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Every human body has a gut microbiome, which is a complex collection of microorganisms
that live in the digestive tracts. The composition of the gut flora changes over time, when
diet changes, overall health changes. Intestinal flora hosts more amounts of the microbes when
compared to stomach flora as it is less vulnerable to the acidity of the gastric mucosa. Intestinal flora
plays a major role in balancing the immune function as well as metabolic homeostasis, regulating
inflammation, increasing mineral bioavailability, synthesizing neurotransmitters, regulating
appetite and blood sugar and protecting against pathogens. Dysbiosis in the gut leads to various gastrointestinal
disorders like inflammatory bowel disease, irritable bowel syndrome, peptic ulcer,
metabolic syndromes like obesity, diabetes and various neurological disorders like autism, multiple
sclerosis. Therefore, the complete wellness of our body is dependent on the microbial composition
of the gut. Probiotics and prebiotic foods can add as a key element supplementing the wellness of
our body.
Collapse
Affiliation(s)
- Athira P. Narayanan
- Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Science Campus, Kochi-682041, Kerala, India
| | - Ankitha Latika
- Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Science Campus, Kochi-682041, Kerala, India
| | - Anjali S. Nair
- Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Science Campus, Kochi-682041, Kerala, India
| | - Pooja Ajeesh
- Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Science Campus, Kochi-682041, Kerala, India
| | - Nirdesh S. Kumar
- Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Science Campus, Kochi-682041, Kerala, India
| | - Merin Babu
- Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Science Campus, Kochi-682041, Kerala, India
| |
Collapse
|
25
|
Gao Q, Gao S, Bates C, Zeng Y, Lei J, Su H, Dong Q, Qin Z, Zhao J, Zhang Q, Ning D, Huang Y, Zhou J, Yang Y. The microbial network property as a bio-indicator of antibiotic transmission in the environment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 758:143712. [PMID: 33277004 DOI: 10.1016/j.scitotenv.2020.143712] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 10/18/2020] [Accepted: 11/10/2020] [Indexed: 06/12/2023]
Abstract
Interspecies interaction is an essential mechanism for bacterial communities to develop antibiotic resistance via horizontal gene transfer. Nonetheless, how bacterial interactions vary along the environmental transmission of antibiotics and the underpinnings remain unclear. To address it, we explore potential microbial associations by analyzing bacterial networks generated from 16S rRNA gene sequences and functional networks containing a large number of antibiotic-resistance genes (ARGs). Antibiotic concentration decreased by more than 4000-fold along the environmental transmission chain from manure samples of swine farms to aerobic compost, compost-amended agricultural soils, and neighboring agricultural soils. Both bacterial and functional networks became larger in nodes and links with decreasing antibiotic concentrations, likely resulting from lower antibiotics stress. Nonetheless, bacterial networks became less clustered with decreasing antibiotic concentrations, while functional networks became more clustered. Modularity, a key topological property that enhances system resilience to antibiotic stress, remained high for functional networks, but the modularity values of bacterial networks were the lowest when antibiotic concentrations were intermediate. To explain it, we identified a clear shift from deterministic processes, particularly variable selection, to stochastic processes at intermediate antibiotic concentrations as the dominant mechanism in shaping bacterial communities. Collectively, our results revealed microbial network dynamics and suggest that the modularity value of association networks could serve as an important indicator of antibiotic concentrations in the environment.
Collapse
Affiliation(s)
- Qun Gao
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Shuhong Gao
- School of Civil and Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Colin Bates
- Institute for Environmental Genomics and Department of Botany and Microbiology, University of Oklahoma, Norman, OK 73019, USA
| | - Yufei Zeng
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Jiesi Lei
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Hang Su
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Qiang Dong
- Institute of Chemical Defense, Beijing 102205, China
| | - Ziyan Qin
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Jianshu Zhao
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA 30318, USA
| | - Qiuting Zhang
- Institute for Environmental Genomics and Department of Botany and Microbiology, University of Oklahoma, Norman, OK 73019, USA
| | - Daliang Ning
- Institute for Environmental Genomics and Department of Botany and Microbiology, University of Oklahoma, Norman, OK 73019, USA
| | - Yi Huang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Science and Engineering, Peking University, Beijing 100871, China
| | - Jizhong Zhou
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China; Institute for Environmental Genomics and Department of Botany and Microbiology, University of Oklahoma, Norman, OK 73019, USA; Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Yunfeng Yang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China.
| |
Collapse
|
26
|
Baraka MA, AlLehaibi LH, AlSuwaidan HN, Alsulaiman D, Islam MA, Alotaibi BS, Alboghdadly A, Homoud AH, Al-Ghamdi FH, Al Ghamdi MS, Babar ZUD. Patterns of infections and antimicrobial drugs' prescribing among pregnant women in Saudi Arabia: a cross sectional study. J Pharm Policy Pract 2021; 14:9. [PMID: 33441164 PMCID: PMC7807808 DOI: 10.1186/s40545-020-00292-6] [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: 03/20/2020] [Accepted: 12/28/2020] [Indexed: 12/13/2022] Open
Abstract
Background Antimicrobial agents are among the most commonly prescribed drugs in pregnancy due to the increased susceptibility to infections during pregnancy. Antimicrobials can contribute to different maternal complications. Therefore, it is important to study their patterns in prescription and utilization. The data regarding this issue is scarce in Saudi Arabia. Therefore, the aim of this study is to generate data on the antimicrobial agents that are most commonly prescribed during pregnancy as well as their indications and safety. Methods This is a retrospective study focusing on pregnant women with a known antimicrobial use at Johns Hopkins Aramco Healthcare (JHAH). The sample included 344 pregnant women with a total of 688 antimicrobial agents prescribed. Data was collected on the proportion of pregnant women who received antimicrobial agents and on the drug safety during pregnancy using the risk categorization system of the U.S. Food and Drug Administration (FDA). Results The results showed that urinary tract infections (UTIs) were the most reported (59%) infectious diseases. Around 48% of pregnant women received antimicrobial medications at some point during pregnancy. The top two antimicrobial agents based on prescription frequency were B-lactams (44.6%) and azole anti-fungals (30%). The prescribed drugs in the study were found to be from classes B, C and D under the FDA risk classification system. Conclusion The study revealed a high proportion of antimicrobials prescribed during pregnancy that might pose risks to mothers and their fetuses. Future multicenter studies are warranted to evaluate the rational prescription of antimicrobial medications during pregnancy.
Collapse
Affiliation(s)
- Mohamed A Baraka
- Clinical Pharmacy Department, College of Pharmacy, Al Ain University, Al Ain Campus, Al Ain, United Arab Emirates. .,Clinical Pharmacy Department, College of Pharmacy, Al-Azhar University, Cairo, Egypt.
| | - Lina Hussain AlLehaibi
- First Health Cluster in Eastern Province, Dammam Medical Complex, Dammam, 32245, Saudi Arabia
| | - Hind Nasser AlSuwaidan
- College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, P.O. Box. 1982, Dammam, 31441, Saudi Arabia
| | - Duaa Alsulaiman
- King Fahd Hospital of the University (KFHU), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Md Ashraful Islam
- Pharmacy Practice Department, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Badriyah Shadid Alotaibi
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Amany Alboghdadly
- College of Pharmacy, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Ali H Homoud
- Clinical Pharmacy Service, Johns Hopkins Aramco Healthcare, Dhahran, Saudi Arabia
| | - Fuad H Al-Ghamdi
- Pharmacy Department at Johns Hopkins Aramco Healthcare, Dhahran, Saudi Arabia
| | - Mastour S Al Ghamdi
- Department of Pharmacology, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Zaheer-Ud-Din Babar
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Huddersfield, UK
| |
Collapse
|
27
|
Wei ZT, Chen HL, Wang CF, Yang GL, Han SM, Zhang SL. Depiction of Vaginal Microbiota in Women With High-Risk Human Papillomavirus Infection. Front Public Health 2021; 8:587298. [PMID: 33490017 PMCID: PMC7820762 DOI: 10.3389/fpubh.2020.587298] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 12/08/2020] [Indexed: 01/14/2023] Open
Abstract
Persistent infection with the carcinogenic human papillomavirus (HPV) is a prerequisite for the progression of cervical lesions and cancer. A growing body of research has focused on the functional role of the vaginal microbiota in the persistence of HPV infection. Understanding the microbial composition and structure in women with high-risk (hr)-HPV infection may help reveal associations between the vaginal microbiota and HPV infection, and identify potential biomarkers. Our study investigated the vaginal microbial community in women with and without hr-HPV infection, by using 16s rRNA gene sequencing. We found that microbial perturbations occurred in the early phase of hr-HPV infection. Lactobacillus and Sporolactobacillus were decreased, while bacteria related to bacterial vaginosis (BV), such as Gardnerella, Prevotella, Dialister, Slackia, Actinomyces, Porphyromonas, Peptoniphilus, Anaerococcus, Peptostreptococcus, Streptococcus, Ureaplasma, Megasphaera, and Mycoplasma were increased. Our results could offer insights into the correlations between hr-HPV and the vaginal microbiota in the early infection period, and provide indications that the predominance of some BV-associated bacteria during hr-HPV infection may increase the risk for cervical neoplasia.
Collapse
Affiliation(s)
- Zhen-Tong Wei
- Department of Oncologic Gynecology, The First Hospital of Jilin University, Changchun, China
| | - Hong-Liang Chen
- College of Veterinary Medicine, Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, China
| | - Chun-Feng Wang
- College of Veterinary Medicine, Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, China
| | - Gui-Lian Yang
- College of Veterinary Medicine, Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Agricultural University, Changchun, China
| | - Shu-Mei Han
- Medical Department, The First Hospital of Jilin University, Changchun, China
| | - Song-Ling Zhang
- Department of Oncologic Gynecology, The First Hospital of Jilin University, Changchun, China
| |
Collapse
|
28
|
Heinzinger LR, Johnson A, Wurster JI, Nilson R, Penumutchu S, Belenky P. Oxygen and Metabolism: Digesting Determinants of Antibiotic Susceptibility in the Gut. iScience 2020; 23:101875. [PMID: 33354661 PMCID: PMC7744946 DOI: 10.1016/j.isci.2020.101875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Microbial metabolism is a major determinant of antibiotic susceptibility. Environmental conditions that modify metabolism, notably oxygen availability and redox potential, can directly fine-tune susceptibility to antibiotics. Despite this, relatively few studies have discussed these modifications within the gastrointestinal tract and their implication on in vivo drug activity and the off-target effects of antibiotics in the gut. In this review, we discuss the environmental and biogeographical complexity of the gastrointestinal tract in regard to oxygen availability and redox potential, addressing how the heterogeneity of gut microhabitats may modify antibiotic activity in vivo. We contextualize the current literature surrounding oxygen availability and antibiotic efficacy and discuss empirical treatments. We end by discussing predicted patterns of antibiotic activity in prominent microbiome taxa, given gut heterogeneity, oxygen availability, and polymicrobial interactions. We also propose additional work required to fully elucidate the role of oxygen metabolism on antibiotic susceptibility in the context of the gut.
Collapse
Affiliation(s)
- Lauren R. Heinzinger
- Department of Microbiology and Immunology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, The State University of New York, Buffalo, NY 14214, USA
| | - Angus Johnson
- Department of Biological Science, Binghamton University, Binghamton, NY 13902, USA
| | - Jenna I. Wurster
- Department of Molecular Microbiology and Immunology, Brown University, Providence, RI 02912, USA
| | - Rachael Nilson
- Department of Molecular Microbiology and Immunology, Brown University, Providence, RI 02912, USA
| | - Swathi Penumutchu
- Department of Molecular Microbiology and Immunology, Brown University, Providence, RI 02912, USA
| | - Peter Belenky
- Department of Molecular Microbiology and Immunology, Brown University, Providence, RI 02912, USA
| |
Collapse
|
29
|
Juliana NCA, Suiters MJM, Al-Nasiry S, Morré SA, Peters RPH, Ambrosino E. The Association Between Vaginal Microbiota Dysbiosis, Bacterial Vaginosis, and Aerobic Vaginitis, and Adverse Pregnancy Outcomes of Women Living in Sub-Saharan Africa: A Systematic Review. Front Public Health 2020; 8:567885. [PMID: 33363078 PMCID: PMC7758254 DOI: 10.3389/fpubh.2020.567885] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 11/09/2020] [Indexed: 02/06/2023] Open
Abstract
Background: Previous studies have described the association between dysbiosis of the vaginal microbiota (VMB) and related dysbiotic conditions, such as bacterial vaginosis (BV) and aerobic vaginitis (AV), and various adverse pregnancy outcomes. There is limited overview of this association from countries in sub-Saharan Africa (SSA), which bear a disproportionally high burden of both vaginal dysbiotic conditions and adverse pregnancy outcomes. This systematic review assesses the evidence on the association between VMB dysbiosis, BV, and AV, and late adverse pregnancy outcomes in women living in SSA. Methods: The Preferred Reporting Items for Systematic Review and Meta-Analysis Statement (PRISMA) guidelines were followed. Three databases [PubMed, Embase (Ovid), and Cochrane] were used to retrieve observational and intervention studies conducted in SSA that associated VMB dysbiosis, BV, or AV and preterm birth/labor/delivery, preterm rupture of membranes (PROM), low birthweight, small for gestational age, intrauterine growth restriction, intrauterine infection, intrauterine (fetal) death, stillbirth, perinatal death, or perinatal mortality. Results: Twelve studies out of 693 search records from five SSA countries were included. One study identified a positive association between VMB dysbiosis and low birthweight. Despite considerable differences in study design and outcome reporting, studies reported an association between BV and preterm birth (7/9), low birthweight (2/6), PROM (2/4), intrauterine infections (1/1), and small for gestational age (1/1). None of the retrieved studies found an association between BV and pregnancy loss (5/5) or intrauterine growth retardation (1/1). At least two studies support the association between BV and PROM, low birthweight, and preterm birth in Nigerian pregnant women. No reports were identified investigating the association between AV and late adverse pregnancy outcomes in SSA. Conclusion: Two of the included studies from SSA support the association between BV and PROM. The remaining studies show discrepancies in supporting an association between BV and preterm birth or low birthweight. None of the studies found an association between BV and pregnancy loss. As for the role of VMB dysbiosis, BV, and AV during pregnancy among SSA women, additional research is needed. These results provide useful evidence for prevention efforts to decrease vaginal dysbiosis and its contribution to adverse pregnancy outcomes in SSA.
Collapse
Affiliation(s)
- Naomi C A Juliana
- Department of Genetics and Cell Biology, Faculty of Health, Medicine and Life Sciences, Research School GROW (School for Oncology & Developmental Biology), Institute for Public Health Genomics, Maastricht University, Maastricht, Netherlands
| | - Meghan J M Suiters
- Department of Genetics and Cell Biology, Faculty of Health, Medicine and Life Sciences, Research School GROW (School for Oncology & Developmental Biology), Institute for Public Health Genomics, Maastricht University, Maastricht, Netherlands
| | - Salwan Al-Nasiry
- Department of Obstetrics and Gynecology, GROW School of Oncology and Developmental Biology, Maastricht University Medical Center (MUMC), Maastricht, Netherlands
| | - Servaas A Morré
- Department of Genetics and Cell Biology, Faculty of Health, Medicine and Life Sciences, Research School GROW (School for Oncology & Developmental Biology), Institute for Public Health Genomics, Maastricht University, Maastricht, Netherlands.,Laboratory of Immunogenetics, Department of Medical Microbiology and Infection Control, Amsterdam UMC, Amsterdam, Netherlands
| | - Remco P H Peters
- Department of Medical Microbiology, University of Pretoria, Pretoria, South Africa.,Department of Medical Microbiology, School for Public Health and Primary Care (CAPRHI), Maastricht University, Maastricht, Netherlands.,Research Unit, Foundation for Professional Development, East London, South Africa
| | - Elena Ambrosino
- Department of Genetics and Cell Biology, Faculty of Health, Medicine and Life Sciences, Research School GROW (School for Oncology & Developmental Biology), Institute for Public Health Genomics, Maastricht University, Maastricht, Netherlands
| |
Collapse
|
30
|
Di Paola M, Seravalli V, Paccosi S, Linari C, Parenti A, De Filippo C, Tanturli M, Vitali F, Torcia MG, Di Tommaso M. Identification of Vaginal Microbial Communities Associated with Extreme Cervical Shortening in Pregnant Women. J Clin Med 2020; 9:jcm9113621. [PMID: 33182750 PMCID: PMC7698214 DOI: 10.3390/jcm9113621] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/04/2020] [Accepted: 11/06/2020] [Indexed: 11/16/2022] Open
Abstract
The vaginal microbiota plays a critical role in pregnancy. Bacteria from Lactobacillus spp. are thought to maintain immune homeostasis and modulate the inflammatory responses against pathogens implicated in cervical shortening, one of the risk factors for spontaneous preterm birth. We studied vaginal microbiota in 46 pregnant women of predominantly Caucasian ethnicity diagnosed with short cervix (<25 mm), and identified microbial communities associated with extreme cervical shortening (≤10 mm). Vaginal microbiota was defined by 16S rRNA gene sequencing and clustered into community state types (CSTs), based on dominance or depletion of Lactobacillus spp. No correlation between CSTs distribution and maternal age or gestational age was revealed. CST-IV, dominated by aerobic and anaerobic bacteria different than Lactobacilli, was associated with extreme cervical shortening (odds ratio (OR) = 15.0, 95% confidence interval (CI) = 1.56–14.21; p = 0.019). CST-III (L. iners-dominated) was also associated with extreme cervical shortening (OR = 6.4, 95% CI = 1.32–31.03; p = 0.02). Gestational diabetes mellitus (GDM) was diagnosed in 10/46 women. Bacterial richness was significantly higher in women experiencing this metabolic disorder, but no association with cervical shortening was revealed by statistical analysis. Our study confirms that Lactobacillus-depleted microbiota is significantly associated with an extremely short cervix in women of predominantly Caucasian ethnicity, and also suggests an association between L. iners-dominated microbiota (CST III) and cervical shortening.
Collapse
Affiliation(s)
- Monica Di Paola
- Department of Biology, University of Florence, Sesto Fiorentino, 50019 Florence, Italy;
| | - Viola Seravalli
- Department of Health Sciences, Division of Obstetrics & Gynecology, University of Florence, 50139 Florence, Italy; (V.S.); (C.L.); (M.D.T.); (S.P.); (A.P.)
| | - Sara Paccosi
- Department of Health Sciences, Division of Obstetrics & Gynecology, University of Florence, 50139 Florence, Italy; (V.S.); (C.L.); (M.D.T.); (S.P.); (A.P.)
| | - Carlotta Linari
- Department of Health Sciences, Division of Obstetrics & Gynecology, University of Florence, 50139 Florence, Italy; (V.S.); (C.L.); (M.D.T.); (S.P.); (A.P.)
| | - Astrid Parenti
- Department of Health Sciences, Division of Obstetrics & Gynecology, University of Florence, 50139 Florence, Italy; (V.S.); (C.L.); (M.D.T.); (S.P.); (A.P.)
| | - Carlotta De Filippo
- Institute of Agricultural Biology and Biotechnology, National Research Council, 56124 Pisa, Italy; (C.D.F.); (F.V.)
| | - Michele Tanturli
- Department of Experimental and Clinical Medicine, University of Florence, 50139 Florence, Italy;
| | - Francesco Vitali
- Institute of Agricultural Biology and Biotechnology, National Research Council, 56124 Pisa, Italy; (C.D.F.); (F.V.)
| | - Maria Gabriella Torcia
- Department of Experimental and Clinical Medicine, University of Florence, 50139 Florence, Italy;
- Correspondence:
| | - Mariarosaria Di Tommaso
- Department of Health Sciences, Division of Obstetrics & Gynecology, University of Florence, 50139 Florence, Italy; (V.S.); (C.L.); (M.D.T.); (S.P.); (A.P.)
| |
Collapse
|
31
|
He J, Zheng W, Tao C, Guo H, Xue Y, Zhao R, Yao W. Heat stress during late gestation disrupts maternal microbial transmission with altered offspring's gut microbial colonization and serum metabolites in a pig model. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 266:115111. [PMID: 32663631 DOI: 10.1016/j.envpol.2020.115111] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 06/24/2020] [Accepted: 06/24/2020] [Indexed: 06/11/2023]
Abstract
Heat stress (HS) during gestation has been associated with negative outcomes, such as preterm birth or postnatal metabolic syndromes. The intestinal microbiota is a unique ecosystem playing an essential role in mediating the metabolism and health of mammals. Here we hypothesize late gestational HS alters maternal microbial transmission and structures offspring's intestinal microbiota and serum metabolic profiles. Our results show maternal HS alters bacterial β-diversity and composition in sows and their piglets. In the maternal intestine, genera Ruminococcaceae UCG-005, [Eubacterium] coprostanoligenes group and Halomonas are higher by HS (q < 0.05), whereas the populations of Streptococcus, Bacteroidales RF16 group_norank and Roseburia are decreased (q < 0.05). In the maternal vagina, HS mainly elevates the proportions of phylum Bacteroidetes and Fusobacteria (q < 0.05), whereas reduces the population of Clostridiales Family XI (q < 0.05). In the neonatal intestine, maternal HS promotes the population of Proteobacteria but reduces the relative abundance of Firmicutes (q < 0.05). Moreover, the core Operational taxonomic units (OTU) analysis indicates the proportions of Clostridium sensu stricto 1, Romboutsia and Turicibacter are decreased by maternal HS in the intestinal and vaginal co-transmission, whereas that of phylum Proteobacteria and Epsilonbacteraeota, such as Escherichia-Shigella, Klebsiella, Acinetobacter, and Comamonas are increased in both the intestinal and vaginal co-transmission and the vagina. Additionally, Aeromonas is the only genus that is transmitted from environmental sources. Lastly, we evaluate the importance of neonatal differential OTU for the differential serum metabolites. The results indicate Acinetobacter significantly contributes to the differences in the adrenocorticotropic hormone (ACTH) and glucose levels due to HS (P < 0.05). Further, Stenotrophomonas is the most important variable for Cholesterol, low-density lipoprotein (LDL), diamine oxidase (DAO), blood urea nitrogen (BUN) and 5-hydroxytryptamine (5-HT) (P < 0.10). Overall, our data provides evidence for the maternal HS in establishing the neonatal microbiota via affecting maternal transmission, which in turn affects the maintenance of metabolic health.
Collapse
Affiliation(s)
- Jianwen He
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Weijiang Zheng
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, PR China; National Experimental Teaching Center for Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Chengyuan Tao
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Huiduo Guo
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Yongqiang Xue
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Ruqian Zhao
- Key Lab of Animal Physiology and Biochemistry, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Wen Yao
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, PR China; National Experimental Teaching Center for Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, PR China; Key Lab of Animal Physiology and Biochemistry, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Nanjing Agricultural University, Nanjing, 210095, PR China.
| |
Collapse
|
32
|
Messman RD, Contreras-Correa ZE, Paz HA, Perry G, Lemley CO. Vaginal bacterial community composition and concentrations of estradiol at the time of artificial insemination in Brangus heifers. J Anim Sci 2020; 98:5846190. [PMID: 32515480 DOI: 10.1093/jas/skaa178] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 05/19/2020] [Indexed: 12/18/2022] Open
Abstract
The knowledge surrounding the bovine vaginal microbiota and its implications on fertility and reproductive traits remains incomplete. The objective of the current study was to characterize the bovine vaginal bacterial community and estradiol concentrations at the time of artificial insemination (AI). Brangus heifers (n = 78) underwent a 7-d Co-Synch + controlled internal drug release estrus synchronization protocol. At AI, a double-guarded uterine culture swab was used to sample the anterior vaginal tract. Immediately after swabbing the vaginal tract, blood samples were collected by coccygeal venipuncture to determine concentrations of estradiol. Heifers were retrospectively classified as pregnant (n = 29) vs. nonpregnant (n = 49) between 41 and 57 d post-AI. Additionally, heifers were classified into low (1.1 to 2.5 pg/mL; n = 21), medium (2.6 to 6.7 pg/mL; n = 30), and high (7.2 to 17.6 pg/mL; n = 27) concentration of estradiol. The vaginal bacterial community composition was determined through sequencing of the V4 region from the 16S rRNA gene using the Illumina Miseq platform. Alpha diversity was compared via ANOVA and beta diversity was compared via PERMANOVA. There were no differences in the Shannon diversity index (alpha diversity; P = 0.336) or Bray-Curtis dissimilarity (beta diversity; P = 0.744) of pregnant vs. nonpregnant heifers. Overall, bacterial community composition in heifers with high, medium, or low concentrations of estradiol did not differ (P = 0.512). While no overall compositional differences were observed, species-level differences were present within pregnancy status and estradiol concentration groups. The implications of these species-level differences are unknown, but these differences could alter the vaginal environment thereby influencing fertility and vaginal health. Therefore, species-level changes could provide better insight rather than overall microbial composition in relation to an animal's reproductive health.
Collapse
Affiliation(s)
- Riley D Messman
- Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, MS
| | | | - Henry A Paz
- Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, MS
| | - George Perry
- Department of Animal Sciences, South Dakota State University, Brookings, SD
| | - Caleb O Lemley
- Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, MS
| |
Collapse
|
33
|
The Dwindling Microbiota of Aerobic Vaginitis, an Inflammatory State Enriched in Pathobionts with Limited TLR Stimulation. Diagnostics (Basel) 2020; 10:diagnostics10110879. [PMID: 33126716 PMCID: PMC7692151 DOI: 10.3390/diagnostics10110879] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 10/16/2020] [Accepted: 10/26/2020] [Indexed: 01/04/2023] Open
Abstract
While bacterial vaginosis (BV) is a well-known type of vaginal dysbiosis, aerobic vaginitis (AV) is an inflammatory condition that remains understudied and under-recognised. It predisposes women to serious complications including urogenital infections and pregnancy problems. Here, we investigated the bacterial community in AV to explore its possible role in AV pathogenesis. We collected vaginal lavage fluid samples of women (n = 58) classified by wet-mount microscopy as suffering from AV or BV and included an asymptomatic reference group without signs of AV or BV. AV samples showed reduced absolute abundances of bacteria in general and specifically of lactobacilli by qPCR, but 16S rRNA gene sequencing and amplicon sequence variant analysis revealed that Lactobacillus remained the dominant taxon in 25% of the AV samples studied. The other AV samples showed high relative abundances of Streptococcus agalactiae and, unexpectedly, the anaerobes Gardnerella vaginalis and Prevotella bivia in more than half of the AV samples studied. Yet, despite increased relative abundance of these potential pathogens or pathobionts in the AV bacterial communities, the AV samples only slightly stimulated Toll-like receptor 4 and showed reduced activation of Toll-like receptor 2/6, receptors of two pathways central to mucosal immunity. Our findings indicate that the reduced total bacterial abundance with associated enrichment in certain pathobionts in AV might be mainly a consequence of the inflammatory conditions and/or altered hormonal regulation rather than bacteria being a major cause of the inflammation.
Collapse
|
34
|
Ruiz-Hernández UE, Pelcastre-Rodriguez LI, Cabrero-Martínez OA, Hernández-Cortez C, Castro-Escarpulli G. Analysis of CRISPR-Cas systems in Gardnerella suggests its potential role in the mechanisms of bacterial vaginosis. Comput Biol Chem 2020; 89:107381. [PMID: 33002715 DOI: 10.1016/j.compbiolchem.2020.107381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 09/16/2020] [Accepted: 09/18/2020] [Indexed: 10/23/2022]
Abstract
Bacterial vaginosis (BV) is the principal cause of vaginal discharge among women, and it can lead to many comorbidities with a negative impact in women's daily activities. Despite the fact that the pathophysiological process of BV remains unclear, great advances had been achieved in determining consequences of the shift in the vaginal community, and it was defined that Gardnerella spp., plays a key role in the pathogenesis of BV. Interactions of vaginal phage communities and bacterial hosts may be relevant in eubiosis/dysbiosis states, so defense mechanisms in Gardnerella spp., against phage infections could be relevant in BV development. In this study, we analyzed CRISPR-Cas systems among the 13 Gardnerella species recently classified, considering that these systems act as prokaryotic immune systems against phages, plasmids, and other mobile genetic elements. In silico analyses for CRISPR-Cas systems mining over the 81 Gardnerella spp., strains genomes analyzed led to the identification of subtypes I-E and II-C. Spacers analyses showed a hypervariable region across species, providing a high resolution level in order to distinguish clonality in strains, which was supported with phylogenomic analyses based on Virtual Genomic Fingerprinting. Moreover, most of the spacers revealed interactions between Gardnerella spp., strains and prophages over the genus. Furthermore, virulence traits of the 13 species showed insights of potential niche specificity in the vaginal microbiome. Overall, our results suggest that the CRISPR-Cas systems in the genus Gardnerella may play an important role in the mechanisms of the development and maintenance of BV, considering that the Gardnerella species occupies different niches in the vaginal community; in addition, spacer sequences can be used for genotyping studies.
Collapse
Affiliation(s)
- Ubaldo Emilio Ruiz-Hernández
- Laboratorio de Investigación Clínica y Ambiental, Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, Mexico.
| | - Leda Ivonne Pelcastre-Rodriguez
- Laboratorio de Investigación Clínica y Ambiental, Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, Mexico.
| | - Omar Alejandro Cabrero-Martínez
- Laboratorio de Investigación Clínica y Ambiental, Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, Mexico.
| | - Cecilia Hernández-Cortez
- Laboratorio de Bioquímica Microbiana, Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, Mexico.
| | - Graciela Castro-Escarpulli
- Laboratorio de Investigación Clínica y Ambiental, Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, Mexico.
| |
Collapse
|
35
|
Mohamed I, Zakeer S, Azab M, Hanora A. Changes in Vaginal Microbiome in Pregnant and Nonpregnant Women with Bacterial Vaginosis: Toward Microbiome Diagnostics? OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2020; 24:602-614. [PMID: 32955994 DOI: 10.1089/omi.2020.0096] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Bacterial vaginosis (BV) is highly common, adversely affecting the health of millions of women. New therapeutic targets and diagnostics are urgently needed for BV. Microbiome research offers new prospects in this context. We report here original findings on changes in the vaginal microbiome in pregnant and nonpregnant women with BV. Reproductive age women were recruited for this study after a clinical examination. The total sample (N = 33) included four study groups: (1) healthy nonpregnant women (n = 9), (2) nonpregnant women with symptomatic BV (n = 11), (3) healthy pregnant women without BV (n = 6), and (4) pregnant women with symptomatic BV (N = 7). The vaginal microbiota in healthy women was less diverse, with dominance of a single genus, Lactobacillus. Six major phyla appeared upon taxonomic analysis of the bacterial sequences: Firmicutes, Actinobacteria, Proteobacteria, Tenericutes, Bacteroidetes, and Fusobacteria. For instance, Firmicutes had a significantly higher abundance (98.3%) in the nonpregnant healthy group and 94.3% in pregnant healthy group, compared with nonpregnant (49.7%) and pregnant (67%) women with BV (p = 0.003). Moreover, women with BV had significant increases in representation of Actinobacteria, Fusobacteria, and Bacteroidetes (p = 0.0003, 0.004, and 0.01, respectively). Although the Lactobacillus genus was predominant in healthy women, Gardnerella, Atopobium, Sneathia, and Prevotella significantly increased in nonpregnant women with BV (p = 0.001, 0.014, 0.004, and 0.012, respectively). Dysbiosis of Lactobacillus in pregnant women with BV was accompanied by increased prevalence of the Streptococcus genus. These findings contribute new insights toward microbiome diagnostics and therapeutics innovation in BV.
Collapse
Affiliation(s)
- Ibrahim Mohamed
- Quality Control Department, Medical Union Pharmaceuticals Co. Main Factory, Ismailia, Egypt.,Department of Microbiology and Immunology, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Samira Zakeer
- Department of Microbiology and Immunology, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Marwa Azab
- Department of Microbiology and Immunology, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Amro Hanora
- Department of Microbiology and Immunology, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| |
Collapse
|
36
|
Li P, Zhang Y, Meng Q, Liu Y, Tuyiringire D, Chen Z, Liang S. Trichloroethylene inhibits nitrogen transformation and microbial community structure in Mollisol. ECOTOXICOLOGY (LONDON, ENGLAND) 2020; 29:801-813. [PMID: 32445014 DOI: 10.1007/s10646-020-02230-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/05/2020] [Indexed: 06/11/2023]
Abstract
Trichloroethylene (TCE) is the most ubiquitous halogenated organic pollutant in the environment, it is one of the 129 priority control pollutants. In order to clarify the influence of TCE on microorganisms and nitrogen transformation in Mollisol is the core purpose of this study. Results showed that 10 mg kg-1 TCE is the concentration limit of ammonification in Mollisol. When the concentration of TCE reached 10 mg kg-1 and the effect lasted for over 7 days, the process of ammonia oxidation to nitric acid in Mollisol will be affected. TCE affected the process of nitrate (NO3-) transformation into nitrite (NO2-) by affecting the activity of nitrate reductase, thereby affected the denitrification process in soil. When the concentration of TCE is more than 10 mg kg-1 it reduced the ability of soil microorganisms to obtain nitrogen, thereby affecting soil nitrogen transformation. RDA (Redundancy analysis) showed that the activity of nitrate reductase and the number of nitrifying bacteria and denitrifying bacteria in soil was negatively correlated with the incubation of TCE. In addition, soil nitrate reductase, nitrite reductase, peroxidase activity, ammonifying bacteria, nitrifying bacteria and denitrifying bacteria were negatively correlated with TCE concentration. Beyond that PICRUSt (Phylogenetic Investigation of Communities by Reconstruction of Unobserved States) of functional gene structure depend on KEGG (Kyoto Encyclopedia of Genes and Genomes) showed that 20 mg kg-1 TCE significantly inhibited the metabolism of energy and other substances in Mollisol. Based on the above, it is found that TCE significantly affected nitrification and denitrification in Mollisol, thus the nitrogen transformation in Mollisol was affected by TCE contamination.
Collapse
Affiliation(s)
- Pengfei Li
- College of Resources and Environment, Northeast Agricultural University, 150030, Harbin, China
- College of Geographical Science, Harbin Normal University, 150025, Harbin, China
| | - Ying Zhang
- College of Resources and Environment, Northeast Agricultural University, 150030, Harbin, China.
| | - Qingjuan Meng
- College of Resources and Environment, Northeast Agricultural University, 150030, Harbin, China
| | - Ying Liu
- College of Resources and Environment, Northeast Agricultural University, 150030, Harbin, China
| | - Diogene Tuyiringire
- College of Resources and Environment, Northeast Agricultural University, 150030, Harbin, China
| | - Zhaobo Chen
- College of Environment and Resources, Dalian Minzu University, 18 Liaohe West Road, 116600, Dalian, China
| | - Shichao Liang
- College of Resources and Environment, Northeast Agricultural University, 150030, Harbin, China
| |
Collapse
|
37
|
Happel AU, Varsani A, Balle C, Passmore JA, Jaspan H. The Vaginal Virome-Balancing Female Genital Tract Bacteriome, Mucosal Immunity, and Sexual and Reproductive Health Outcomes? Viruses 2020; 12:E832. [PMID: 32751611 PMCID: PMC7472209 DOI: 10.3390/v12080832] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 07/22/2020] [Accepted: 07/24/2020] [Indexed: 12/12/2022] Open
Abstract
Besides bacteria, fungi, protists and archaea, the vaginal ecosystem also contains a range of prokaryote- and eukaryote-infecting viruses, which are collectively referred to as the "virome". Despite its well-described role in the gut and other environmental niches, the vaginal virome remains understudied. With a focus on sexual and reproductive health, we summarize the currently known components of the vaginal virome, its relationship with other constituents of the vaginal microbiota and its association with adverse health outcomes. While a range of eukaryote-infecting viruses has been described to be present in the female genital tract (FGT), few prokaryote-infecting viruses have been described. Literature suggests that various vaginal viruses interact with vaginal bacterial microbiota and host immunity and that any imbalance thereof may contribute to the risk of adverse reproductive health outcomes, including infertility and adverse birth outcomes. Current limitations of vaginal virome research include experimental and analytical constraints. Considering the vaginal virome may represent the missing link in our understanding of the relationship between FGT bacteria, mucosal immunity, and adverse sexual and reproductive health outcomes, future studies evaluating the vaginal microbiome and its population dynamics holistically will be important for understanding the role of the vaginal virome in balancing health and disease.
Collapse
Affiliation(s)
- Anna-Ursula Happel
- Department of Pathology, Institute of Infectious Diseases and Molecular Medicine, University of Cape Town, Anzio Road, Observatory, Cape Town 7925, South Africa; (C.B.); (J.-A.P.); (H.J.)
| | - Arvind Varsani
- The Biodesign Center of Fundamental and Applied Microbiomics, School of Life Sciences, Center for Evolution and Medicine, Arizona State University, 1001 S. McAllister Ave, Tempe, AZ 85287-5001, USA;
- Structural Biology Research Unit, Department of Integrative Biomedical Sciences, Institute of Infectious Diseases and Molecular Medicine, University of Cape Town, Anzio Road, Observatory, Cape Town 7925, South Africa
| | - Christina Balle
- Department of Pathology, Institute of Infectious Diseases and Molecular Medicine, University of Cape Town, Anzio Road, Observatory, Cape Town 7925, South Africa; (C.B.); (J.-A.P.); (H.J.)
| | - Jo-Ann Passmore
- Department of Pathology, Institute of Infectious Diseases and Molecular Medicine, University of Cape Town, Anzio Road, Observatory, Cape Town 7925, South Africa; (C.B.); (J.-A.P.); (H.J.)
- NRF-DST CAPRISA Centre of Excellence in HIV Prevention, 719 Umbilo Road, Congella, Durban 4013, South Africa
- National Health Laboratory Service, Anzio Road, Observatory, Cape Town 7925, South Africa
| | - Heather Jaspan
- Department of Pathology, Institute of Infectious Diseases and Molecular Medicine, University of Cape Town, Anzio Road, Observatory, Cape Town 7925, South Africa; (C.B.); (J.-A.P.); (H.J.)
- Department of Pediatrics and Global Health, University of Washington, 1510 San Juan Road NE, Seattle, WA 98195, USA
- Seattle Children’s Research Institute, 307 Westlake Ave N, Seattle, WA 98109, USA
| |
Collapse
|
38
|
Gerson KD, McCarthy C, Elovitz MA, Ravel J, Sammel MD, Burris HH. Cervicovaginal microbial communities deficient in Lactobacillus species are associated with second trimester short cervix. Am J Obstet Gynecol 2020; 222:491.e1-491.e8. [PMID: 31816307 DOI: 10.1016/j.ajog.2019.11.1283] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 11/19/2019] [Accepted: 11/30/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND The cervix functions as a barrier to ascending pathogens in pregnancy. Short cervical length and lack of cervicovaginal Lactobacillus species are risk factors for spontaneous preterm birth; however, whether they interact to increase risk remains unknown. OBJECTIVE We sought to examine the relationship between cervicovaginal microbiota and short cervix as well as their combined impact on spontaneous preterm birth risk. STUDY DESIGN This was a secondary analysis of a prospective nested, case-control pregnancy study. Cervical swabs were collected between 16 and 20 weeks of gestation. Cervical length was measured per standard clinical care during a clinically indicated ultrasound at approximately 20 weeks of gestation. Cervicovaginal microbiota were analyzed with 16S ribosomal RNA gene sequencing and classified into community state types among 67 cases of spontaneous preterm birth, 47 cases of medically indicated preterm birth, and 358 cases of term births. Logistic regression was used to model associations of community state type IV, a community characterized by a paucity of Lactobacillus species and a wide array of anaerobic bacteria, and short cervix (<25 mm) as well as to model the association of a combination of short cervix and community state type IV with the odds of spontaneous preterm birth. RESULTS Among the 472 women in the data set, there were 38 with short cervix (8.1%) and 177 with community state type IV (37.5%). Short cervix was associated with spontaneous preterm birth (adjusted odds ratio, 15.59; 95% confidence interval, 6.77-35.92). Women with community state type IV had higher odds of short cervix (adjusted odds ratio, 2.17; 95% confidence interval, 1.04-4.53) as well as spontaneous preterm birth (adjusted odds ratio, 1.97; 95% confidence interval, 1.06-3.65). While the interaction of community state type IV and short cervix was not significant (P = .771), women with both short cervix and community state type IV (n = 20) had higher odds of spontaneous preterm birth compared with women with both normal cervical length and community state types I, II, III, or V (n = 277) (adjusted odds ratio, 21.8; 95% confidence interval, 6.78-70.2). CONCLUSION Community state type IV, characterized by a diverse set of strict and facultative anaerobes and a paucity of Lactobacillus species, is associated with increased odds of short cervix. Women with both community state type IV and short cervix have higher odds of spontaneous preterm birth than women with either factor alone. Determining the cascade of events leading to premature cervical shortening, including dysbiosis, may be critical in preventing spontaneous preterm birth.
Collapse
Affiliation(s)
- Kristin D Gerson
- Department of Obstetrics and Gynecology, Maternal and Child Health Research Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
| | - Clare McCarthy
- Department of Obstetrics and Gynecology, Maternal and Child Health Research Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Michal A Elovitz
- Department of Obstetrics and Gynecology, Maternal and Child Health Research Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Jacques Ravel
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD
| | - Mary D Sammel
- Department of Obstetrics and Gynecology, Maternal and Child Health Research Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Heather H Burris
- Department of Obstetrics and Gynecology, Maternal and Child Health Research Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA; Department of Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| |
Collapse
|
39
|
Kaur H, Merchant M, Haque MM, Mande SS. Crosstalk Between Female Gonadal Hormones and Vaginal Microbiota Across Various Phases of Women's Gynecological Lifecycle. Front Microbiol 2020; 11:551. [PMID: 32296412 PMCID: PMC7136476 DOI: 10.3389/fmicb.2020.00551] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 03/13/2020] [Indexed: 01/02/2023] Open
Abstract
Functional equilibrium between vaginal microbiota and the host is important for maintaining gynecological and reproductive health. Apart from host genetics, infections, changes in diet, life-style and hygiene status are known to affect this delicate state of equilibrium. More importantly, the gonadal hormones strongly influence the overall structure and function of vaginal microbiota. Several studies have attempted to understand (a) the composition of vaginal microbiota in specific stages of women's reproductive cycle as well as in menopause (b) their association with gonadal hormones, and their potential role in manifestation of specific health conditions (from the perspective of cause/consequence). However, a single study that places, in context, the structural variations of the vaginal microbiome across the entire life-span of women's reproductive cycle and during various stages of menopause is currently lacking. With the objective to obtain a holistic overview of the community dynamics of vaginal micro-environment 'across' various stages of women's reproductive and post-reproductive life-cycle, we have performed a meta-analysis of approximately 1,000 vaginal microbiome samples representing various stages of the reproductive cycle and menopausal states. Objectives of this analysis included (a) understanding temporal changes in vaginal community taxonomic structure and composition as women pass through various reproductive and menopausal stages (b) exploring correlations between the levels of female sex hormones with vaginal microbiome diversity (c) analyzing changes in the pattern of community diversity in cases of dysbiotic conditions such as bacterial vaginosis, and viewing the analyzed changes in the context of a healthy state. Results reveal interesting temporal trends with respect to vaginal microbial community diversity and its pattern of correlation with host physiology. Results indicate significant differences in alpha-diversity and overall vaginal microbial community members in various reproductive and post-reproductive phases. In addition to reinforcing the known influence/role of gonadal hormones in maintaining gynecological health, results indicate how hormonal level perturbations cause/contribute to imbalances in vaginal microbiota. The nature of resulting dysbiotic state and its influence on vaginal health is also analyzed and discussed. Results also suggest that elevated vaginal microbial diversity in pregnancy does not necessarily indicate a state of bacterial infection. The study puts forward a hormone-level driven microbiome diversity hypothesis for explaining temporal patterns in vaginal microbial diversity during various stages of women's reproductive cycle and at menopause.
Collapse
Affiliation(s)
| | | | | | - Sharmila S. Mande
- Bio-Sciences R&D Division, TCS Research, Tata Consultancy Services, Pune, India
| |
Collapse
|
40
|
Sharma A. Persistence of Tannerella forsythia and Fusobacterium nucleatum in dental plaque: a strategic alliance. CURRENT ORAL HEALTH REPORTS 2020; 7:22-28. [PMID: 36779221 PMCID: PMC9917731 DOI: 10.1007/s40496-020-00254-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
PURPOSE OF REVIEW The Gram-negative oral pathogen Tannerella forsythia is implicated in the pathogenesis of periodontitis, an inflammatory disease characterized by progressive destruction of the tooth supporting structures affecting over 700 million people worldwide. This review highlights the basis of why and how T. forsythia interacts with Fusobacterium nucleatum, a bacterium considered to be a bridge between the early and late colonizing bacteria of the dental plaque. RECENT FINDINGS The recent findings indicate that these two organisms have a strong mutualistic relationship that involves foraging by T. forsythia on F. nucleatum peptidoglycan and utilization of glucose, released by the hydrolytic activity of T. forsythia glucanase, as a nutrient by F. nucleatum. In addition, T. forsythia has the unique ability to generate a toxic and inflammogenic compound, methylglyoxal, from glucose. This compound can induce inflammation, leading to the degradation of periodontal tissues and release of host components as nutrients for bacteria to further exacerbate the disease. SUMMARY In summary, this article will present our current understanding of mechanisms underpinning T. forsythia-F. nucleatum mutualism, and how this mutualism might impact periodontal disease progression.
Collapse
Affiliation(s)
- Ashu Sharma
- Department of Oral Biology, School of Dental Medicine, 3435 Main Street, University at Buffalo, State University of New York, Buffalo, NY 14214
| |
Collapse
|
41
|
Miao R, Badger TC, Groesch K, Diaz-Sylvester PL, Wilson T, Ghareeb A, Martin JA, Cregger M, Welge M, Bushell C, Auvil L, Zhu R, Brard L, Braundmeier-Fleming A. Assessment of peritoneal microbial features and tumor marker levels as potential diagnostic tools for ovarian cancer. PLoS One 2020; 15:e0227707. [PMID: 31917801 PMCID: PMC6952086 DOI: 10.1371/journal.pone.0227707] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 12/26/2019] [Indexed: 12/15/2022] Open
Abstract
Epithelial ovarian cancer (OC) is the most deadly cancer of the female reproductive system. To date, there is no effective screening method for early detection of OC and current diagnostic armamentarium may include sonographic grading of the tumor and analyzing serum levels of tumor markers, Cancer Antigen 125 (CA-125) and Human epididymis protein 4 (HE4). Microorganisms (bacterial, archaeal, and fungal cells) residing in mucosal tissues including the gastrointestinal and urogenital tracts can be altered by different disease states, and these shifts in microbial dynamics may help to diagnose disease states. We hypothesized that the peritoneal microbial environment was altered in patients with OC and that inclusion of selected peritoneal microbial features with current clinical features into prediction analyses will improve detection accuracy of patients with OC. Blood and peritoneal fluid were collected from consented patients that had sonography confirmed adnexal masses and were being seen at SIU School of Medicine Simmons Cancer Institute. Blood was processed and serum HE4 and CA-125 were measured. Peritoneal fluid was collected at the time of surgery and processed for Next Generation Sequencing (NGS) using 16S V4 exon bacterial primers and bioinformatics analyses. We found that patients with OC had a unique peritoneal microbial profile compared to patients with a benign mass. Using ensemble modeling and machine learning pathways, we identified 18 microbial features that were highly specific to OC pathology. Prediction analyses confirmed that inclusion of microbial features with serum tumor marker levels and control features (patient age and BMI) improved diagnostic accuracy compared to currently used models. We conclude that OC pathogenesis alters the peritoneal microbial environment and that these unique microbial features are important for accurate diagnosis of OC. Our study warrants further analyses of the importance of microbial features in regards to oncological diagnostics and possible prognostic and interventional medicine.
Collapse
Affiliation(s)
- Ruizhong Miao
- Department of Statistics, University of Virginia, Charlottesville, Virginia, United States of America
| | - Taylor C. Badger
- Department of Medical Microbiology, Immunology and Cell Biology, SIU School of Medicine, Springfield, Illinois, United States of America
| | - Kathleen Groesch
- Center for Clinical Research, SIU School of Medicine, Springfield, Illinois, United States of America
- Department of Obstetrics & Gynecology, SIU School of Medicine, Springfield, Illinois, United States of America
| | - Paula L. Diaz-Sylvester
- Center for Clinical Research, SIU School of Medicine, Springfield, Illinois, United States of America
- Department of Obstetrics & Gynecology, SIU School of Medicine, Springfield, Illinois, United States of America
| | - Teresa Wilson
- Center for Clinical Research, SIU School of Medicine, Springfield, Illinois, United States of America
- Department of Obstetrics & Gynecology, SIU School of Medicine, Springfield, Illinois, United States of America
| | - Allen Ghareeb
- Center for Clinical Research, SIU School of Medicine, Springfield, Illinois, United States of America
- Department of Obstetrics & Gynecology, SIU School of Medicine, Springfield, Illinois, United States of America
| | - Jongjin Anne Martin
- Department of Obstetrics & Gynecology, SIU School of Medicine, Springfield, Illinois, United States of America
| | - Melissa Cregger
- Oak Ridge National Laboratory, Oak Ridge, Tennessee, United States of America
- Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, Tennessee, United States of America
| | - Michael Welge
- National Center for Supercomputing Applications, University of Illinois at Urbana-Champaign, Champaign, Illinois, United States of America
| | - Colleen Bushell
- Applied Research Institute, University of Illinois at Urbana-Champaign, Champaign, Illinois, United States of America
| | - Loretta Auvil
- National Center for Supercomputing Applications, University of Illinois at Urbana-Champaign, Champaign, Illinois, United States of America
| | - Ruoqing Zhu
- Department of Statistics, University of Illinois at Urbana-Champaign, Champaign, Illinois, United States of America
| | - Laurent Brard
- Department of Obstetrics & Gynecology, SIU School of Medicine, Springfield, Illinois, United States of America
- Simmons Cancer Institute at SIU, Springfield, Illinois, United States of America
| | - Andrea Braundmeier-Fleming
- Department of Medical Microbiology, Immunology and Cell Biology, SIU School of Medicine, Springfield, Illinois, United States of America
- Department of Obstetrics & Gynecology, SIU School of Medicine, Springfield, Illinois, United States of America
- Simmons Cancer Institute at SIU, Springfield, Illinois, United States of America
- * E-mail:
| |
Collapse
|
42
|
Riu D, Lukas E, Kasim F, Sjahril R. Efficacy of standard therapy with synbiotic or without synbiotic to reduce Gardnerella vaginalis, Atopobium vaginae and Megaesphaera phylotype I in pregnant women with bacterial vaginosis. ASIAN PACIFIC JOURNAL OF REPRODUCTION 2020. [DOI: 10.4103/2305-0500.284267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
43
|
Porphyromonas gingivalis, Periodontal and Systemic Implications: A Systematic Review. Dent J (Basel) 2019; 7:dj7040114. [PMID: 31835888 PMCID: PMC6960968 DOI: 10.3390/dj7040114] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 11/28/2019] [Accepted: 12/09/2019] [Indexed: 12/26/2022] Open
Abstract
In recent scientific literature, oral infections and systemic manifestations, or correlations between oral health and systemic diseases are a topic of discussion. Porphyromonas gingivalis is one of the bacteria implicated in the biofilm formation of bacterial plaque, and plays an important role in the progression of periodontal disease. In this systematic review authors have evaluated the literature of the last 10 years on P. gingivalis and all the systemic implications proven. This study therefore evaluates all the districts of the organism in which this bacterium may have implications. From the results it emerges that P. gingivalis has implications in the onset of different systemic pathologies, including rheumatoid arthritis, cardiovascular pathologies, and neurodegenerative pathologies. Surely, understanding the mechanisms of diffusion of this bacterium, it would be possible to prevent a series of pathologies. Thus, putting the dentist clinician at the center of prevention for these diseases.
Collapse
|
44
|
Fischer LA, Demerath E, Bittner-Eddy P, Costalonga M. Placental colonization with periodontal pathogens: the potential missing link. Am J Obstet Gynecol 2019; 221:383-392.e3. [PMID: 31051120 DOI: 10.1016/j.ajog.2019.04.029] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 04/12/2019] [Accepted: 04/24/2019] [Indexed: 12/20/2022]
Abstract
Observational studies demonstrate that women with severe periodontitis have a higher risk of adverse pregnancy outcomes like preterm birth and low birthweight. Standard treatment for periodontitis in the form of scaling and root planing during the second trimester failed to reduce the risk of preterm or low birthweight. It is premature to dismiss the association between periodontitis and adverse pregnancy outcomes because one explanation for the failure of scaling and root planing to reduce the risk of adverse pregnancy outcomes is that periodontal pathogens spread to the placental tissue prior to periodontal treatment. In the placenta, orally derived organisms could cause direct tissue damage or mediate a maternal immune response that impairs the growth of the developing fetus. Sequencing studies demonstrate the presence of organisms derived from the oral microbiome in the placenta, but DNA-based sequencing studies should not be the only technique to evaluate the placental microbiome because they may not detect important shifts in the metabolic capability of the microbiome. In humans, polymerase chain reaction and histology have detected periodontal pathogens in placental tissue in association with multiple adverse pregnancy outcomes. We conclude that both placental and oral microbiomes may play a role in periodontitis-associated adverse pregnancy outcomes. However, the measure to determine the association between periodontal pathogens in the placenta and adverse pregnancy outcomes should be the amount and prevalence, not the mere presence of such microorganisms. Placental colonization with periodontal pathogens thus potentially represents the missing link between periodontitis and adverse pregnancy outcomes.
Collapse
|
45
|
Feng Y, Jaratlerdsiri W, Patrick SM, Lyons RJ, Haynes A, Collins CC, Stricker PD, Bornman MR, Hayes VM. Metagenomic analysis reveals a rich bacterial content in high-risk prostate tumors from African men. Prostate 2019; 79:1731-1738. [PMID: 31454437 PMCID: PMC6790596 DOI: 10.1002/pros.23897] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Accepted: 08/06/2019] [Indexed: 12/22/2022]
Abstract
BACKGROUND Inflammation is a hallmark of prostate cancer (PCa), yet no pathogenic agent has been identified. Men from Africa are at increased risk for both aggressive prostate disease and infection. We hypothesize that pathogenic microbes may be contributing, at least in part, to high-risk PCa presentation within Africa and in turn the observed ethnic disparity. METHODS Here we reveal through metagenomic analysis of host-derived whole-genome sequencing data, the microbial content within prostate tumor tissue from 22 men. What is unique about this study is that patients were separated by ethnicity, African vs European, and environments, Africa vs Australia. RESULTS We identified 23 common bacterial genera between the African, Australian, and Chinese prostate tumor samples, while nonbacterial microbes were notably absent. While the most abundant genera across all samples included: Escherichia, Propionibacterium, and Pseudomonas, the core prostate tumor microbiota was enriched for Proteobacteria. We observed a significant increase in the richness of the bacterial communities within the African vs Australian samples (t = 4.6-5.5; P = .0004-.001), largely driven by eight predominant genera. Considering core human gut microbiota, African prostate tissue samples appear enriched for Escherichia and Acidovorax, with an abundance of Eubacterium associated with host tumor hypermutation. CONCLUSIONS Our study provides suggestive evidence for the presence of a core, bacteria-rich, prostate microbiome. While unable to exclude for fecal contamination, the observed increased bacterial content and richness within the African vs non-African samples, together with elevated tumor mutational burden, suggests the possibility that bacterially-driven oncogenic transformation within the prostate microenvironment may be contributing to aggressive disease presentation in Africa.
Collapse
Affiliation(s)
- Ye Feng
- Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouChina
- Institute of Translational MedicineZhejiang University School of MedicineHangzhouChina
| | - Weerachai Jaratlerdsiri
- Laboratory for Human Comparative and Prostate Cancer Genomics, Garvan Institute of Medical ResearchThe Kinghorn Cancer CentreDarlinghurstNew South WalesAustralia
| | - Sean M. Patrick
- School of Health Systems and Public HealthUniversity of PretoriaPretoriaSouth Africa
| | - Ruth J. Lyons
- Laboratory for Human Comparative and Prostate Cancer Genomics, Garvan Institute of Medical ResearchThe Kinghorn Cancer CentreDarlinghurstNew South WalesAustralia
| | - Anne‐Maree Haynes
- Laboratory for Human Comparative and Prostate Cancer Genomics, Garvan Institute of Medical ResearchThe Kinghorn Cancer CentreDarlinghurstNew South WalesAustralia
| | - Colin C. Collins
- Vancouver Prostate CentreVancouverCanada
- Department of UrologyUniversity of British ColumbiaVancouverCanada
| | - Phillip D. Stricker
- Department of UrologySt Vincent's Hospital SydneyDarlinghurstNew South WalesAustralia
| | - M.S. Riana Bornman
- School of Health Systems and Public HealthUniversity of PretoriaPretoriaSouth Africa
| | - Vanessa M. Hayes
- Laboratory for Human Comparative and Prostate Cancer Genomics, Garvan Institute of Medical ResearchThe Kinghorn Cancer CentreDarlinghurstNew South WalesAustralia
- School of Health Systems and Public HealthUniversity of PretoriaPretoriaSouth Africa
- St Vincent's Clinical SchoolUniversity of New South Wales SydneySydneyNew South WalesAustralia
- Central Clinical School, Faculty of Medicine and HealthUniversity of SydneyCamperdownNew South WalesAustralia
| |
Collapse
|
46
|
Özavci V, Erbas G, Parin U, Yüksel HT, Kirkan Ş. Molecular detection of feline and canine periodontal pathogens. Vet Anim Sci 2019; 8:100069. [PMID: 32734086 PMCID: PMC7386636 DOI: 10.1016/j.vas.2019.100069] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/05/2019] [Accepted: 08/08/2019] [Indexed: 01/14/2023] Open
Abstract
It is concluded that the feline oral flora is highly diverse than canine oral flora. Porphyromonas gingivalis, Prevotella nigrescens and Porphyromonas gulae were the dominant species in cats and dogs. T. forsythia, C. ochracea, and C. sputigena in cats and T. forsythia, C. ochracea, C. sputigena T. denticola and, E. corrodens, in dogs showed that the prevalence was lower than 10%. E. corrodens in cats and, P. intermedia, A. actinomycetemcomitans, and C. rectus in dogs were also isolated from the swab samples with less than 30% percentage. A balanced diet for cats and dogs should be provided to reduce the formation of residues in the oral flora. Daily rinsing with antiseptic solutions may also be helpful against the development of periodontal pathogens.
Periodontal disease is the most common infectious disease of cats and dogs which are strongly associated with periodontal pathogens. The primary etiologic factor in the formation of periodontal disease is microbial dental plaque accumulation on teeth. In our research, we aimed to investigate the presence of periodontal disease-related bacterial species in dental plaques of cats and dogs. Specimens collected from 50 cats and 51 dogs with periodontal disease examined in terms of periodontal pathogens by polymerase chain reaction (PCR) using primers directed to 16S rRNA and tdpA genes. Our findings indicate the presence of periodontal disease-related pathogens, especially Porphyromonas gingivalis (cats 96%, dogs 88%), Prevotella nigrescens (cats 90%, dogs 57%) and, Porphyromonas gulae (cats 70%, dogs 39%). In addition, the prevalence of Tannerella forthysia (cats 2%, dogs 4%) well-known pathogen in cats and dogs were isolated with an extremely low percentage. Furthermore, our results suggest that the feline oral cavity microbiota has considerably more diversity than dogs. Consequently, daily oral hygiene practices may become essential for controlling the pathogenic bacteria which have clinical importance and in preventing the propagation of microorganisms in the oral cavity of cats and dogs.
Collapse
Affiliation(s)
- Volkan Özavci
- Department of Microbiology, Faculty of Veterinary Medicine, Yozgat Bozok University, Yozgat, Turkey
- Corresponding author.
| | - Göksel Erbas
- Department of Microbiology, Faculty of Veterinary Medicine, Aydin Adnan Menderes University, Aydin, Turkey
| | - Uğur Parin
- Department of Microbiology, Faculty of Veterinary Medicine, Aydin Adnan Menderes University, Aydin, Turkey
| | - Hafize Tuğba Yüksel
- Department of Microbiology, Faculty of Veterinary Medicine, Aydin Adnan Menderes University, Aydin, Turkey
| | - Şükrü Kirkan
- Department of Microbiology, Faculty of Veterinary Medicine, Aydin Adnan Menderes University, Aydin, Turkey
| |
Collapse
|
47
|
Manuel CR, Latuga MS, Ashby CR, Reznik SE. Immune tolerance attenuates gut dysbiosis, dysregulated uterine gene expression and high-fat diet potentiated preterm birth in mice. Am J Obstet Gynecol 2019; 220:596.e1-596.e28. [PMID: 30790568 DOI: 10.1016/j.ajog.2019.02.028] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 02/09/2019] [Accepted: 02/14/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND Preterm delivery accounts for 85% of perinatal morbidity and mortality. Although the consumption of a high-fat diet leads to exaggerated proinflammatory responses and, in pregnant women, increased rates of spontaneous preterm birth, the underlying mechanisms remain unclear. OBJECTIVE We sought to elucidate the mechanisms by which maternal consumption of a high-fat diet leads to a dysregulated immune response and, subsequently, spontaneous preterm birth. STUDY DESIGN We performed 16S ribosomal RNA sequencing of DNA extracted and amplified from stool samples and compared the gut microbiomes of lipopolysaccharide-induced pregnant mice that were maintained on a high-fat diet compared to a normal control diet. Next, we sequenced the uterine transcriptomes of the mice. To test the effect of dampening of the immune response on the microbiome, transcriptome, and risk of spontaneous preterm birth, we induced immune tolerance with repetitive subclinical doses (0.2 mg/kg/week for 8 weeks) of endotoxin and performed 16S ribosomal RNA and uterine transcriptome sequencing on these immunotolerized mice. RESULTS High-fat diet potentiates lipopolysaccharide-induced preterm birth by affecting the maternal gut microbiome and uterine transcriptome and reduces antioxidant capacity in a murine model. High-fat diet consumption also increases the colonization of the gut by 5 immunogenic bacteria and decreases colonization by Lachnospiraceae_NK4A136_group. Uteri from high-fat diet mice had increased expression of genes that stimulate the inflammatory-oxidative stress axis, autophagy/apoptosis, and smooth muscle contraction. Repetitive endotoxin priming protects high-fat diet dams from spontaneous preterm birth, increases colonization of the gut by Lachnospiraceae_NK4A136_group, decreases levels of immunogenic bacteria in the gut microbiome, and reduces the number of dysregulated genes after high-fat diet consumption from 994 to 74. CONCLUSION High-fat diet-potentiated spontaneous preterm birth is mediated by increased inflammation, oxidative stress, and gut dysbiosis. The induction of immune tolerance via endotoxin priming reverses these effects and protects high-fat diet dams from spontaneous preterm birth. Based on this work, the role of immunomodulation as a novel therapeutic approach to prevent preterm birth among women who consume high-fat diets should be explored.
Collapse
|
48
|
Abdool Karim SS, Baxter C, Passmore JS, McKinnon LR, Williams BL. The genital tract and rectal microbiomes: their role in HIV susceptibility and prevention in women. J Int AIDS Soc 2019; 22:e25300. [PMID: 31144462 PMCID: PMC6541743 DOI: 10.1002/jia2.25300] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 05/09/2019] [Indexed: 02/06/2023] Open
Abstract
INTRODUCTION Young women in sub-Saharan Africa are disproportionately affected by HIV, accounting for 25% of all new infections in 2017. Several behavioural and biological factors are known to impact a young woman's vulnerability for acquiring HIV. One key, but lesser understood, biological factor impacting vulnerability is the vaginal microbiome. This review describes the vaginal microbiome and examines its alterations, its influence on HIV acquisition as well as the efficacy of HIV prevention technologies, the role of the rectal microbiome in HIV acquisition, advances in technologies to study the microbiome and some future research directions. DISCUSSION Although the composition of each woman's vaginal microbiome is unique, a microbiome dominated by Lactobacillus species is generally associated with a "healthy" vagina. Disturbances in the vaginal microbiota, characterized by a shift from a low-diversity, Lactobacillus-dominant state to a high-diversity non-Lactobacillus-dominant state, have been shown to be associated with a range of adverse reproductive health outcomes, including increasing the risk of genital inflammation and HIV acquisition. Gardnerella vaginalis and Prevotella bivia have been shown to contribute to both HIV risk and genital inflammation. In addition to impacting HIV risk, the composition of the vaginal microbiome affects the vaginal concentrations of some antiretroviral drugs, particularly those administered intravaginally, and thereby their efficacy as pre-exposure prophylaxis (PrEP) for HIV prevention. Although the role of rectal microbiota in HIV acquisition in women is less well understood, the composition of this compartment's microbiome, particularly the presence of species of bacteria from the Prevotellaceae family likely contribute to HIV acquisition. Advances in technologies have facilitated the study of the genital microbiome's structure and function. While next-generation sequencing advanced knowledge of the diversity and complexity of the vaginal microbiome, the emerging field of metaproteomics, which provides important information on vaginal bacterial community structure, diversity and function, is further shedding light on functionality of the vaginal microbiome and its relationship with bacterial vaginosis (BV), as well as antiretroviral PrEP efficacy. CONCLUSIONS A better understanding of the composition, structure and function of the microbiome is needed to identify opportunities to alter the vaginal microbiome and prevent BV and reduce the risk of HIV acquisition.
Collapse
Affiliation(s)
- Salim S Abdool Karim
- Centre for the AIDS Programme of Research in South Africa (CAPRISA)University of KwaZulu‐NatalDurbanSouth Africa
- Department of EpidemiologyColumbia UniversityNew YorkNYUSA
| | - Cheryl Baxter
- Centre for the AIDS Programme of Research in South Africa (CAPRISA)University of KwaZulu‐NatalDurbanSouth Africa
| | - Jo‐Ann S Passmore
- Centre for the AIDS Programme of Research in South Africa (CAPRISA)University of KwaZulu‐NatalDurbanSouth Africa
- National Health Laboratory ServiceCape TownSouth Africa
- Institute of Infectious Diseases and Molecular Medicine (IDM)University of Cape TownCape TownSouth Africa
| | - Lyle R McKinnon
- Centre for the AIDS Programme of Research in South Africa (CAPRISA)University of KwaZulu‐NatalDurbanSouth Africa
- Department of Medical Microbiology and Infectious DiseasesUniversity of ManitobaWinnipegManitobaCanada
- Department of Medical MicrobiologyUniversity of NairobiNairobiKenya
| | - Brent L Williams
- Department of EpidemiologyColumbia UniversityNew YorkNYUSA
- Department of Pathology and Cell BiologyColumbia UniversityNew YorkNYUSA
| |
Collapse
|
49
|
Diop K, Dufour JC, Levasseur A, Fenollar F. Exhaustive repertoire of human vaginal microbiota. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.humic.2018.11.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
50
|
Theis KR, Romero R, Winters AD, Greenberg JM, Gomez-Lopez N, Alhousseini A, Bieda J, Maymon E, Pacora P, Fettweis JM, Buck GA, Jefferson KK, Strauss JF, Erez O, Hassan SS. Does the human placenta delivered at term have a microbiota? Results of cultivation, quantitative real-time PCR, 16S rRNA gene sequencing, and metagenomics. Am J Obstet Gynecol 2019; 220:267.e1-267.e39. [PMID: 30832984 DOI: 10.1016/j.ajog.2018.10.018] [Citation(s) in RCA: 161] [Impact Index Per Article: 32.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 10/10/2018] [Accepted: 10/11/2018] [Indexed: 12/17/2022]
Abstract
BACKGROUND The human placenta has been traditionally viewed as sterile, and microbial invasion of this organ has been associated with adverse pregnancy outcomes. Yet, recent studies that utilized sequencing techniques reported that the human placenta at term contains a unique microbiota. These conclusions are largely based on the results derived from the sequencing of placental samples. However, such an approach carries the risk of capturing background-contaminating DNA (from DNA extraction kits, polymerase chain reaction reagents, and laboratory environments) when low microbial biomass samples are studied. OBJECTIVE To determine whether the human placenta delivered at term in patients without labor who undergo cesarean delivery harbors a resident microbiota ("the assemblage of microorganisms present in a defined niche or environment"). STUDY DESIGN This cross-sectional study included placentas from 29 women who had a cesarean delivery without labor at term. The study also included technical controls to account for potential background-contaminating DNA, inclusive in DNA extraction kits, polymerase chain reaction reagents, and laboratory environments. Bacterial profiles of placental tissues and background technical controls were characterized and compared with the use of bacterial culture, quantitative real-time polymerase chain reaction, 16S ribosomal RNA gene sequencing, and metagenomic surveys. RESULTS (1) Twenty-eight of 29 placental tissues had a negative culture for microorganisms. The microorganisms retrieved by culture from the remaining sample were likely contaminants because corresponding 16S ribosomal RNA genes were not detected in the same sample. (2) Quantitative real-time polymerase chain reaction did not indicate greater abundances of bacterial 16S ribosomal RNA genes in placental tissues than in technical controls. Therefore, there was no evidence of the presence of microorganisms above background contamination from reagents in the placentas. (3) 16S ribosomal RNA gene sequencing did not reveal consistent differences in the composition or structure of bacterial profiles between placental samples and background technical controls. (4) Most of the bacterial sequences obtained from metagenomic surveys of placental tissues were from cyanobacteria, aquatic bacteria, or plant pathogens, which are microbes unlikely to populate the human placenta. Coprobacillus, which constituted 30.5% of the bacterial sequences obtained through metagenomic sequencing of placental samples, was not identified in any of the 16S ribosomal RNA gene surveys of these samples. These observations cast doubt as to whether this organism is really present in the placenta of patients at term not in labor. CONCLUSION With the use of multiple modes of microbiologic inquiry, a resident microbiota could not be identified in human placentas delivered at term from women without labor. A consistently significant difference in the abundance and/or presence of a microbiota between placental tissue and background technical controls could not be found. All cultures of placental tissue, except 1, did not yield bacteria. Incorporating technical controls for potential sources of background-contaminating DNA for studies of low microbial biomass samples, such as the placenta, is necessary to derive reliable conclusions.
Collapse
|