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Coppedge N, Garza J, Gandhi K, Sanchez A, Galloway J, Ventolini G. Lactobacillus microbiota of the female genital tract in vaginal lactobacillosis. Arch Gynecol Obstet 2023; 307:1319-1322. [PMID: 36869938 DOI: 10.1007/s00404-023-06988-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Affiliation(s)
- Nicole Coppedge
- School of Medicine, Texas Tech University Health Sciences Center at the Permian Basin, 301 North N Street Midland, Odessa, TX, 79701, USA
| | - John Garza
- School of Medicine, Texas Tech University Health Sciences Center at the Permian Basin, 301 North N Street Midland, Odessa, TX, 79701, USA.,The University of Texas Permian Basin, Odessa, TX, USA
| | - Kushal Gandhi
- School of Medicine, Texas Tech University Health Sciences Center at the Permian Basin, 301 North N Street Midland, Odessa, TX, 79701, USA
| | - Asley Sanchez
- School of Medicine, Texas Tech University Health Sciences Center at the Permian Basin, 301 North N Street Midland, Odessa, TX, 79701, USA
| | - Josh Galloway
- School of Medicine, Texas Tech University Health Sciences Center at the Permian Basin, 301 North N Street Midland, Odessa, TX, 79701, USA
| | - Gary Ventolini
- School of Medicine, Texas Tech University Health Sciences Center at the Permian Basin, 301 North N Street Midland, Odessa, TX, 79701, USA.
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Asadi A, Lohrasbi V, Abdi M, Mirkalantari S, Esghaei M, Kashanian M, Oshaghi M, Talebi M. The probiotic properties and potential of vaginal Lactobacilli spp. isolated from healthy women against some vaginal pathogens. Lett Appl Microbiol 2022; 74:752-764. [DOI: 10.1111/lam.13660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 01/21/2022] [Indexed: 11/26/2022]
Affiliation(s)
- Arezoo Asadi
- Department of Microbiology School of Medicine Iran University of Medical Sciences Tehran Iran
| | - Vahid Lohrasbi
- Department of Microbiology School of Medicine Iran University of Medical Sciences Tehran Iran
| | - Milad Abdi
- Department of Microbiology School of Medicine Iran University of Medical Sciences Tehran Iran
| | - Shiva Mirkalantari
- Department of Microbiology School of Medicine Iran University of Medical Sciences Tehran Iran
| | - Maryam Esghaei
- Department of Virology School of Medicine Iran University of Medical Sciences Tehran Iran
| | - Maryam Kashanian
- Department of Obstetrics & Gynecology Akbarabadi Teaching Hospital, Iran University of Medical Sciences Tehran Iran
| | - Mozhgan Oshaghi
- Department of Lab Sciences Faculty of Allied Medicine Iran University of Medical Sciences Tehran Iran
| | - Malihe Talebi
- Department of Microbiology School of Medicine Iran University of Medical Sciences Tehran Iran
- Microbial Biotechnology Research Centre Iran University of Medical Sciences Shahid Hemmat Highway Tehran Iran
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Osmałek T, Froelich A, Jadach B, Tatarek A, Gadziński P, Falana A, Gralińska K, Ekert M, Puri V, Wrotyńska-Barczyńska J, Michniak-Kohn B. Recent Advances in Polymer-Based Vaginal Drug Delivery Systems. Pharmaceutics 2021; 13:884. [PMID: 34203714 PMCID: PMC8232205 DOI: 10.3390/pharmaceutics13060884] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/08/2021] [Accepted: 06/09/2021] [Indexed: 11/16/2022] Open
Abstract
The vagina has been considered a potential drug administration route for centuries. Most of the currently marketed and investigated vaginal formulations are composed with the use of natural or synthetic polymers having different functions in the product. The vaginal route is usually investigated as an administration site for topically acting active ingredients; however, the anatomical and physiological features of the vagina make it suitable also for drug systemic absorption. In this review, the most important natural and synthetic polymers used in vaginal products are summarized and described, with special attention paid to the properties important in terms of vaginal application. Moreover, the current knowledge on the commonly applied and innovative dosage forms designed for vaginal administration was presented. The aim of this work was to highlight the most recent research directions and indicate challenges related to vaginal drug administrations. As revealed in the literature overview, intravaginal products still gain enormous scientific attention, and novel polymers and formulations are still explored. However, there are research areas that require more extensive studies in order to provide the safety of novel vaginal products.
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Affiliation(s)
- Tomasz Osmałek
- Chair and Department of Pharmaceutical Technology, Poznan University of Medical Sciences, 60-780 Poznań, Poland; (A.F.); (B.J.); (A.T.); (P.G.); (A.F.); (K.G.); (M.E.)
| | - Anna Froelich
- Chair and Department of Pharmaceutical Technology, Poznan University of Medical Sciences, 60-780 Poznań, Poland; (A.F.); (B.J.); (A.T.); (P.G.); (A.F.); (K.G.); (M.E.)
| | - Barbara Jadach
- Chair and Department of Pharmaceutical Technology, Poznan University of Medical Sciences, 60-780 Poznań, Poland; (A.F.); (B.J.); (A.T.); (P.G.); (A.F.); (K.G.); (M.E.)
| | - Adam Tatarek
- Chair and Department of Pharmaceutical Technology, Poznan University of Medical Sciences, 60-780 Poznań, Poland; (A.F.); (B.J.); (A.T.); (P.G.); (A.F.); (K.G.); (M.E.)
| | - Piotr Gadziński
- Chair and Department of Pharmaceutical Technology, Poznan University of Medical Sciences, 60-780 Poznań, Poland; (A.F.); (B.J.); (A.T.); (P.G.); (A.F.); (K.G.); (M.E.)
| | - Aleksandra Falana
- Chair and Department of Pharmaceutical Technology, Poznan University of Medical Sciences, 60-780 Poznań, Poland; (A.F.); (B.J.); (A.T.); (P.G.); (A.F.); (K.G.); (M.E.)
| | - Kinga Gralińska
- Chair and Department of Pharmaceutical Technology, Poznan University of Medical Sciences, 60-780 Poznań, Poland; (A.F.); (B.J.); (A.T.); (P.G.); (A.F.); (K.G.); (M.E.)
| | - Michał Ekert
- Chair and Department of Pharmaceutical Technology, Poznan University of Medical Sciences, 60-780 Poznań, Poland; (A.F.); (B.J.); (A.T.); (P.G.); (A.F.); (K.G.); (M.E.)
| | - Vinam Puri
- Department of Pharmaceutics, William Levine Hall, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Life Sciences Building, New Jersey Center for Biomaterials, Piscataway, NJ 08854, USA; (V.P.); (B.M.-K.)
| | - Joanna Wrotyńska-Barczyńska
- Division of Infertility and Reproductive Endocrinology, Department of Gynecology, Obstetrics and Gynecological Oncology, Poznan University of Medical Sciences, 33 Polna St., 60-535 Poznań, Poland;
| | - Bozena Michniak-Kohn
- Department of Pharmaceutics, William Levine Hall, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Life Sciences Building, New Jersey Center for Biomaterials, Piscataway, NJ 08854, USA; (V.P.); (B.M.-K.)
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Bacteriocin-Like Inhibitory Substances from Probiotics as Therapeutic Agents for Candida Vulvovaginitis. Antibiotics (Basel) 2021; 10:antibiotics10030306. [PMID: 33802636 PMCID: PMC8002407 DOI: 10.3390/antibiotics10030306] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 03/04/2021] [Accepted: 03/10/2021] [Indexed: 12/20/2022] Open
Abstract
Probiotics can potentially prevent and treat diseases. We examined the inhibitory activity of bacteriocin-like inhibitory substances (BLISs) from potentially probiotic lactobacilli and streptococci on Candida albicans and non-Candida albicans clinical isolates from women with vulvovaginitis. Using agar well diffusion assays, BLISs inhibited both Candida albicans and non-Candida albicans isolates. The BLIS from L. pentosus isolates had the highest anti-Candida activity (33/45; 73.3%), followed by BLISs from isolates of L. paracasei subsp. paracasei (31/45; 68.9%), L. rhamnosus I (30/45; 66.7%), L. delbrueckii subsp. lactis I (30/45; 66.7%), and S. uberis II (30/45; 66.7%). Upon characterization according to the retained activity under variable physical and chemical conditions, the BLISs showed stability against heat, pH, and surfactants, but were protease-sensitive, which suggests a proteinaceous nature of the active substances. Using crystal violet assays, the BLISs reduced the Candida biofilm biomass significantly as compared to a control group that lacked BLISs. In vivo testing of the antagonistic activity was performed using the Galleria mellonella (G. mellonella) larvae model. BLISs significantly improved survival in G. mellonella larvae treated with Candida isolates on the first, second, and seventh days, as compared to larvae inoculated with Candida only (p < 0.01). The results show that BLISs can be used as biotherapeutic agents in vulvovaginal candidiasis.
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Koedooder R, Mackens S, Budding A, Fares D, Blockeel C, Laven J, Schoenmakers S. Identification and evaluation of the microbiome in the female and male reproductive tracts. Hum Reprod Update 2020; 25:298-325. [PMID: 30938752 DOI: 10.1093/humupd/dmy048] [Citation(s) in RCA: 98] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 11/16/2018] [Accepted: 01/16/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The existence of an extensive microbiome in and on the human body has increasingly dominated the scientific literature during the last decade. A shift from culture-dependent to culture-independent identification of microbes has occurred since the emergence of next-generation sequencing (NGS) techniques, whole genome shotgun and metagenomic sequencing. These sequencing analyses have revealed the presence of a rich diversity of microbes in most exposed surfaces of the human body, such as throughout the reproductive tract. The results of microbiota analyses are influenced by the technical specifications of the applied methods of analyses. Therefore, it is difficult to correctly compare and interpret the results of different studies of the same anatomical niche. OBJECTIVES AND RATIONALE The aim of this narrative review is to provide an overview of the currently used techniques and the reported microbiota compositions in the different anatomical parts of the female and male reproductive tracts since the introduction of NGS in 2005. This is crucial to understand and determine the interactions and roles of the different microbes necessary for successful reproduction. SEARCH METHODS A search in Embase, Medline Ovid, Web of science, Cochrane and Google scholar was conducted. The search was limited to English language and studies published between January 2005 and April 2018. Included articles needed to be original microbiome research related to the reproductive tracts. OUTCOMES The review provides an extensive up-to-date overview of current microbiome research in the field of human reproductive medicine. The possibility of drawing general conclusions is limited due to diversity in the execution of analytical steps in microbiome research, such as local protocols, sampling methods, primers used, sequencing techniques and bioinformatic pipelines, making it difficult to compare and interpret results of the available studies. Although some microbiota are associated with reproductive success and a good pregnancy outcome, it is still unknown whether a causal link exists. More research is needed to further explore the possible clinical implications and therapeutic interventions. WIDER IMPLICATIONS For the field of reproductive medicine, determination of what is a favourable reproductive tract microbiome will provide insight into the mechanisms of both unsuccessful and successful human reproduction. To increase pregnancy chances with live birth and to reduce reproduction-related health costs, future research could focus on postponing treatment or conception in case of the presence of unfavourable microbiota and on the development of therapeutic interventions, such as microbial therapeutics and lifestyle adaptations.
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Affiliation(s)
- Rivka Koedooder
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynaecology, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Shari Mackens
- Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Laarbeeklaan 101-1090, Brussels, Belgium
| | - Andries Budding
- Department of Medical Microbiology and Infection Control, Amsterdam UMC-location VUmc, Amsterdam, The Netherlands
| | - Damiat Fares
- Division of Obstetrics and Prenatal Diagnosis, Department of Obstetrics and Gynaecology, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Christophe Blockeel
- Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Laarbeeklaan 101-1090, Brussels, Belgium
| | - Joop Laven
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynaecology, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Sam Schoenmakers
- Division of Obstetrics and Prenatal Diagnosis, Department of Obstetrics and Gynaecology, Erasmus University Medical Centre, Rotterdam, The Netherlands
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Zhang Q, Zhang L, Ross P, Zhao J, Zhang H, Chen W. Comparative Genomics of Lactobacillus crispatus from the Gut and Vagina Reveals Genetic Diversity and Lifestyle Adaptation. Genes (Basel) 2020; 11:genes11040360. [PMID: 32230824 PMCID: PMC7230607 DOI: 10.3390/genes11040360] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/23/2020] [Accepted: 03/25/2020] [Indexed: 12/20/2022] Open
Abstract
Lactobacillus crispatus colonizes the human feces, human vagina, and the crops and ceca of chicken. To explore the genetic characteristics and evolutionary relationships of L. crispatus isolated from different niches, we selected 37 strains isolated from the human vagina (n = 17), human feces (n = 11), and chicken feces (n = 9), and used comparative genomics to explore the genetic information of L. crispatus from the feces and vagina. No significant difference was found in the three sources of genomic features such as genome size, GC content, and number of protein coding sequences (CDS). However, in a phylogenetic tree constructed based on core genes, vagina-derived L. crispatus and feces-derived strains were each clustered separately. Therefore, the niche exerted an important impact on the evolution of L. crispatus. According to gene annotation, the L. crispatus derived from the vagina possessed a high abundance of genes related to acid tolerance, redox reactions, pullulanase, and carbohydrate-binding modules (CBMs). These genes helped L. crispatus to better adapt to the acidic environment of the vagina and obtain more nutrients, maintaining its dominance in the vagina in competition with other strains. In feces-derived bacteria, more genes encoding CRISPR/Cas system, glycoside hydrolases (GHs) family, and tetracycline/lincomycin resistance genes were found to adapt to the complex intestinal environment. This study highlights the evolutionary relationship of L. crispatus strains isolated from the vagina and feces, and the adaptation of L. crispatus to the host environment.
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Affiliation(s)
- Qiuxiang Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Q.Z.); (L.Z.); (J.Z.); (H.Z.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- International Joint Research Center for Probiotics & Gut Health, Jiangnan University, Wuxi 214122, China
| | - Lili Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Q.Z.); (L.Z.); (J.Z.); (H.Z.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Paul Ross
- International Joint Research Center for Probiotics & Gut Health, Jiangnan University, Wuxi 214122, China
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Q.Z.); (L.Z.); (J.Z.); (H.Z.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Q.Z.); (L.Z.); (J.Z.); (H.Z.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
- Wuxi Translational Medicine Research Center and Jiangsu Translational Medicine Research Institute Wuxi Branch, Wuxi 214122, China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Q.Z.); (L.Z.); (J.Z.); (H.Z.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
- Beijing Innovation Centre of Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing 100048, China
- Correspondence: ; Tel.: +86-510-859-12155
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El-Deeb WM, Fayez M, Elsohaby I, Ghoneim I, Al-Marri T, Kandeel M, ElGioushy M. Isolation and characterization of vaginal Lactobacillus spp. in dromedary camels ( Camelus dromedarius): in vitro evaluation of probiotic potential of selected isolates. PeerJ 2020; 8:e8500. [PMID: 32071813 PMCID: PMC7007732 DOI: 10.7717/peerj.8500] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 01/01/2020] [Indexed: 12/11/2022] Open
Abstract
Lactobacillus spp. is one of the beneficial lactic acid producing microbiota in the vagina, which is important for a healthy vaginal environment. However, little is known about vaginal Lactobacillus in dromedary camels (Camelus dromedarius). Therefore, this study aimed to isolate vaginal lactic acid bacteria (LAB) in dromedary camels and to study the probiotic potential of selected isolates. A total of 75 vaginal swabs were collected from pluriparous, non-pregnant, non-lactating dromedary camels. The LAB were isolated using deMan, Rogosa and Sharpe broth and agar media. Suspected LAB isolates were subjected to catalase testing and Gram staining and examined for indole production, nitrate reduction, hemolytic activity, cell surface hydrophobicity, auto- and coaggregation, antibacterial activity and characterized by 16S rRNA amplification and sequencing. Eighteen LABs were isolated from the 75 vaginal swabs. Among the 18 LAB isolates, six were Lactobacillus plantarum, eight were Lactobacillus fermentum, and four were Lactobacillus rhamnosus. None of the LAB isolates was hemolytic and only four LAB were H2O2 producing. The percentage of hydrophobicity ranged from 0% to 49.6%, 0% to 44.3% and 0% to 41.6% for hexadecane, xylene and toluene, respectively. All isolates showed higher (P < 0.05) autoaggregation after 24 h of incubation compared to 4 h. Furthermore, all LAB showed higher coaggregation (P < 0.05) and antimicrobial activity toward Staphylococcus aureus than to Escherichia coli. All LAB isolates were vancomycin resistant and sensitive to streptomycin, erythromycin, kanamycin and chloramphenicol. Only, three LAB isolates were resistant to tetracycline. The dromedary camel vaginal LAB isolates exhibited varying degrees of in vitro probiotic properties tested in this study and showed promising activity against the most common bacterial causes of endometritis in dromedary camels. Further investigation of the in vivo effect of these isolates is warranted.
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Affiliation(s)
- Wael M. El-Deeb
- Department of Clinical Sciences, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
- Department of Veterinary Medicine, Infectious Diseases and Fish Diseases, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt
| | - Mahmoud Fayez
- Ministry of Agriculture, Al-Ahsa Veterinary Diagnostic Laboratory, Al-Ahsa, Saudi Arabia
- Veterinary Serum and Vaccine Research institute, Ministry of Agriculture, Cairo, Egypt
| | - Ibrahim Elsohaby
- Department of Animal Medicine, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Sharkia Governorate, Egypt
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Canada
| | - Ibrahim Ghoneim
- Department of Clinical Sciences, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
- Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Theeb Al-Marri
- Department of Clinical Sciences, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Mahmoud Kandeel
- Department of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
- Department of Pharmacology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafr Elsheikh, Egypt
| | - Magdy ElGioushy
- Department of Animal Medicine, Faculty of Veterinary Medicine, Aswan University, Aswan, Egypt
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Bhagwat A, Annapure US. Maternal-neonatal transmission of Enterococcus strains during delivery. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2019. [DOI: 10.1186/s43088-019-0029-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Abstract
Background
Cesarean delivery (c-section) is on the rise globally. C-section is generally preferred if complications prevail in a vaginal delivery. Some private institutions conduct it unnecessarily for economic gains. This has led to a severe risk to a child’s health. The neonate’s gut microbiota has been observed to be influenced by the mode of delivery. Lactobacilli and other bacteria are very vital for developing healthy gut flora. An attempt has been made to investigate the passage of lactic acid bacteria to the infant via delivery. The vaginal swabs of the mothers and fresh meconium samples of the newborns post-delivery were examined for the presence of lactobacilli through culture techniques.
Results
The present investigation revealed that c-section-delivered infants lacked these bacteria in comparison with vaginally delivered infants. Biochemical tests and 16S rRNA sequencing showed similarity with groups 1, 2, 3, and 5 of Enterococcus genus. Phylogenetic analysis revealed more than 98% similarity with several Enterococcus species. E. canintestini, E.rivorum, and E. dispar were transferred frequently from mother to infants born via vaginal delivery. The strains were submitted to the NCBI GenBank database under accession numbers KX830968–KX830982.
Conclusion
The study supports the hypothesis of maternal-neonatal transmission of bacteria during delivery and also possibilities of isolating newer strains for probiotic use.
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Fuochi V, Cardile V, Petronio Petronio G, Furneri PM. Biological properties and production of bacteriocins-like-inhibitory substances by Lactobacillus sp. strains from human vagina. J Appl Microbiol 2019; 126:1541-1550. [PMID: 30499608 DOI: 10.1111/jam.14164] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/07/2018] [Accepted: 11/23/2018] [Indexed: 01/02/2023]
Abstract
AIMS The aim of this study was to characterize Lactobacillus strains for their biological properties and amensalistic activities against genital and nongenital pathogens. METHODS AND RESULTS For the purpose, some special characteristics (H2 O2 , biofilm and antimicrobial substances production) as well as safety properties of 112 lactobacilli were evaluated. All the strains had good amensalistic characteristics, in particular cell-free supernatants of 10 strains showed antibacterial activity against bacteria, as well as Candida sp. Moreover, these 10 strains were excellent biofilm producers. CONCLUSIONS These results provide evidence for the possible use as probiotics for vaginal co-therapy in case of dysbiosis. SIGNIFICANCE AND IMPACT OF THE STUDY Recently, the problem of antibiotic resistance is constantly increasing, even though resources and energy are invested in order to increase knowledge on the mechanisms of action. Bacteriocins have a rapid mechanism of action, act at extremely low concentrations, are generally sensitive to proteases and they usually have a narrow killing spectrum; these characteristics reduce the possibility of the bacterium to develop resistance. This study is focused on the feasibility of a high production of antimicrobial substances and their characterization in order to be exploited as a therapeutic alterative or in co-therapy with antibiotics in case of vaginal dysbiosis.
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Affiliation(s)
- V Fuochi
- Dipartimento di Scienze Biomediche e Biotecnologiche BIOMETEC Sez. Microbiologia, Università degli Studi di Catania, Catania, Italy
| | - V Cardile
- Dipartimento di Scienze Biomediche e Biotecnologiche BIOMETEC Sez. Fisiologia, Università degli Studi di Catania, Catania, Italy
| | - G Petronio Petronio
- Dipartimento di Scienze Biomediche e Biotecnologiche BIOMETEC Sez. Microbiologia, Università degli Studi di Catania, Catania, Italy
| | - P M Furneri
- Dipartimento di Scienze Biomediche e Biotecnologiche BIOMETEC Sez. Microbiologia, Università degli Studi di Catania, Catania, Italy
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10
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Yeruva T, Rajkumar H, Donugama V. Vaginal lactobacilli profile in pregnant women with normal & abnormal vaginal flora. Indian J Med Res 2018; 146:534-540. [PMID: 29434069 PMCID: PMC5819037 DOI: 10.4103/ijmr.ijmr_774_16] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background & objectives: Lactobacilli species that are better adapted to vaginal environment of women may colonize better and offer protection against vaginal pathogenic bacteria. In this study, the distribution of common Lactobacillus species was investigated in pregnant women. Methods: Sixty seven pregnant women were included in the study and vaginal samples were collected for Gram staining. Women were classified as normal vaginal flora, intermediate flora and bacterial vaginosis (BV) based on Nugent's score. Vaginal samples were also collected for the identification of Lactobacillus spp. by multiplex polymerase chain reaction (PCR) profiling of 16S rDNA amplification method. Results: Lactobacillus crispatus (100%) was the most predominant Lactobacillus spp. present in pregnant women with normal flora, followed by L. iners (77%), L. jensenii (74%) and L. helveticus (60%). While, L. iners was commonly present across groups in women with normal, intermediate or BV flora, L. crispatus, L. jensenii and L. helveticus decreased significantly as the vaginal flora changed to intermediate and BV. In women with BV, except L. iners other species of lactobacilli was less frequently prevalent. Species such as L. rhamnosus, L. fermentum, L. paracasei and L. casei were not detected in any vaginal sample. Interpretation & conclusions: L. crispatus, L. jensinii and L. helveticus were predominant species in women with normal flora. L. crispatus alone or in combination with L. jensinii and L. helveticus may be evaluated for probiotic properties for the prevention and treatment of BV.
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Affiliation(s)
- Thirupathaiah Yeruva
- Department of Microbiology & Immunology, ICMR-National Institute of Nutrition, Hyderabad, India
| | - Hemalatha Rajkumar
- Department of Microbiology & Immunology, ICMR-National Institute of Nutrition, Hyderabad, India
| | - Vasundhara Donugama
- Department of Microbiology & Immunology, ICMR-National Institute of Nutrition, Hyderabad, India
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Camilletti AL, Ruíz FO, Pascual LM, Barberis IL. First Steps towards the Pharmaceutical Development of Ovules Containing Lactobacillus Strains: Viability and Antimicrobial Activity as Basic First Parameters in Vaginal Formulations. AAPS PharmSciTech 2018; 19:886-895. [PMID: 29043604 DOI: 10.1208/s12249-017-0895-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 09/25/2017] [Indexed: 12/13/2022] Open
Abstract
In the majority of Latin-American countries, including Argentina, there is a limited availability of vaginal bioproducts containing probiotics in the market. In addition, the conventional treatments of genital tract infections in women represent a high cost to the public health systems. The future development of this type of bioproducts that employ specific lactobacilli strains would not only have a meaningful impact on women's health but would also represent a significant challenge to the pharmaceutical industry. The aims of the work described in this paper were (i) to study different pharmaceutical formulations of vaginal ovules containing Lactobacillus fermentum L23 and L. rhamnosus L60, to determine in which formulation lactobacilli viability was sustained for longer time and (ii) to evaluate if probiotic strains maintained both the antimicrobial activity and biofilm-producing ability after being recovered from the ovules. In this study, we developed and characterized three pharmaceutical formulations containing different glycerol amounts and specific lactobacilli strains. Three relevant parameters, cell viability, antimicrobial activity, and biofilm production, by lactobacilli recovered from the ovules were tested. Although the viability of L23 and L60 strains was mainly influenced by high ovule's glycerol proportion, they survived at 4 °C during the 180 days. Both lactobacilli's antimicrobial activity and biofilm-producing ability were maintained for all treatments. In conclusion, employing a much reduced number of components, we were able to select the most suitable pharmaceutical formulation which maintained not only lactobacilli viability for a long period of time but also their antimicrobial activity and biofilm-producing ability.
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Analysis of antimicrobial and immunomodulatory substances produced by heterofermentative Lactobacillus reuteri. Folia Microbiol (Praha) 2017; 62:515-524. [PMID: 28401403 DOI: 10.1007/s12223-017-0524-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 03/22/2017] [Indexed: 12/23/2022]
Abstract
Antimicrobial and immunomodulatory potential of various Lactobacillus reuteri strains is closely connected to their metabolite production profile under given cultivation conditions. We determined the in vitro production of antimicrobial substances such as organic acids, ethanol, and reuterin by four strains of L. reuteri (L. reuteri E, L. reuteri KO5, L. reuteri CCM 3625, and L. reuteri ATCC 55730). All studied L. reuteri strains showed the ability to produce lactic acid, acetic acid, and ethanol with concominant consumption of glucose and together with phenyllactic acid-a potent antifungal compound-with concominant consumption of phenylalanine. The reuterin production from glycerol was confirmed for all analyzed lactobacilli strains except L. reuteri CCM 3625. Production of organic acids, ethanol, and reuterin is significantly involved in antimicrobial activity of lactobacilli which was determined using the dual-culture overlay diffusion method against six indicator bacteria and five indicator moulds. In comparison to the referential L. reuteri ATCC 55730, the highest inhibition potential was observed against Escherichia coli CCM 3988 and Pseudomonas aeruginosa CCM 3955. Among analyzed indicators of moulds, the growth of Alternaria alternata CCM F-128 was the most inhibited by all four analyzed L. reuteri strains. Finally, the immunomodulatory potential of analyzed lactobacilli were proven by the determination of the in vitro production of biogenic amines histamine and tyramine. L. reuteri CCM 3625 was able to produce tyramine, and L. reuteri E and L. reuteri KO5 were able to produce histamine under given cultivation conditions.
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The Application of Molecular Methods Towards an Understanding of the Role of the Vaginal Microbiome in Health and Disease. METHODS IN MICROBIOLOGY 2017. [DOI: 10.1016/bs.mim.2017.08.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Bouridane H, Sifour M, Idoui T, Annick L, Thonard P. Technological and Probiotic Traits of the Lactobacilli Isolated From Vaginal Tract of the Healthy Women for Probiotic Use. IRANIAN JOURNAL OF BIOTECHNOLOGY 2016; 14:192-201. [PMID: 28959336 PMCID: PMC5492240 DOI: 10.15171/ijb.1432] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Background
For biotechnological application, selected lactic acid bacteria strains belonging to the genera Lactobacillus (Lb) are proposed as an alternative to the antibiotics for the prevention and treatment of urogenital tract infections.
Objectives
Isolating and selecting vaginal lactobacilli strains for probiotic use based on their technological and probiotic aptitudes.
Materials and Methods
The vaginal isolates were examined for their essential characteristics as the potential probiotic such as low pH tolerance, bile-salt and simulated human intestinal fluid (SIF) resistance, adhesion to the vaginal epithelial cells (VECs), aggregation and coaggregation, surface hydrophobicity, antimicrobial activity, acid production, antibiotic resistance, and resistance to spermicides. The best strain was identified by PCR.
Results
From 70 lactobacilli isolates and according to the 16 rDNA sequences, isolates B6 and B10 showed the closest homology (99%) to the Lb. gasseri and Lb. plantarum respectively. They produced hydrogen peroxide (H2O2), tolerant to acid, bile, simulated human intestinal fluid, present a strong adhesion, highest percentages of aggregation, and antibacterial activity. These strains are resistant to the spermicide and actively acidify the growth medium.
Conclusions
Strains Lb. plantarum B10 and Lb. gasseri B6 have a strong potential probiotic confirming their value as a tool for prevention against urinary and vaginal infections.
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Affiliation(s)
- Hamida Bouridane
- Laboratoryof Biotechnology, Environment and Health, University Mohammed Seddik Benyahia, Jijel, Algeria.,Department of Applied Microbiology and Food Sciences, Faculty of Sciences, University Mohammed Seddik Benyahia, Jijel, Algeria
| | - Mohamed Sifour
- Laboratory of Molecular Toxicology, Faculty of Sciences, University Mohammed Seddik Benyahia, Jijel, Algeria
| | - Tayeb Idoui
- Laboratoryof Biotechnology, Environment and Health, University Mohammed Seddik Benyahia, Jijel, Algeria
| | - Lejeune Annick
- Bio-Industries Unit CWBI, Gembloux Agro. Bio-Tech, University of Liege, Passage Deportees, Gembloux, Belgium
| | - Philip Thonard
- Bio-Industries Unit CWBI, Gembloux Agro. Bio-Tech, University of Liege, Passage Deportees, Gembloux, Belgium
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McCarthy FNA, Nii-Trebi NI, Musah BO, Asmah RH. Intravaginal practices and lactobacilli colonization among women in Accra, Ghana. BMC WOMENS HEALTH 2015; 15:46. [PMID: 26040938 PMCID: PMC4455987 DOI: 10.1186/s12905-015-0205-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 05/28/2015] [Indexed: 11/23/2022]
Abstract
Background Intravaginal practices may affect the colonization of vaginal flora and lead to vaginal infections due to the potential effects on the vaginal environment. This study investigated the vaginal practices and their possible effects on vaginal lactobacilli flora colonization in women in Accra. Methods A cross-sectional, descriptive single-site study was carried out on 141 women assessing medical care at the Obstetrics and Gynaecology Department of the Korle-Bu Teaching Hospital (KBTH) in Accra. Study-relevant information on participants was obtained by means of questionnaire. Vaginal swab samples were collected and processed for laboratory analyses. Results All the participants (141/141, 100.0 %) indicated they performed intravaginal practices using various methods. Almost half (46.1 %) of these women were between the ages of 25–34 years and 65.0 % were married. Internal douching (82.3 %; p > 0.05) was the commonest practice reported. Other practices such as insertion and wiping with hands and objects, as well as use of locally prepared concoctions and certain commercial products were also reported. The reason most commonly given was for hygienic purpose (83.0 %); a few (10.6 %) did it for sexual satisfaction, while others indicated vaginal tightness (5.7 %) and wound healing (0.7 %) as reasons for their practice. No Lactobacillus sp. was detected in as many as 78.7 % of the sample. Association tests by the Pearson correlation analysis showed strong significant negative correlation (r = −0.954, p < 0.05) between use of traditional herbs/concoction and vaginal lactobacilli colonization; and douching being the least negatively (r = −0.601, p > 0.05) correlated practice. Conclusions Vaginal practices were common among the women studied. A more elaborate prospective, case–control study into intravaginal practices and their impact on the health of women in Ghana should be explored. Electronic supplementary material The online version of this article (doi:10.1186/s12905-015-0205-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Francisca Nana-Aba McCarthy
- Department of Medical Laboratory Sciences, School of Biomedical and Allied Health Sciences, College of Health Sciences, University of Ghana, Accra, Ghana.
| | - Nicholas Israel Nii-Trebi
- Department of Medical Laboratory Sciences, School of Biomedical and Allied Health Sciences, College of Health Sciences, University of Ghana, Accra, Ghana.
| | - Billal Obeng Musah
- Department of Medical Laboratory Sciences, School of Biomedical and Allied Health Sciences, College of Health Sciences, University of Ghana, Accra, Ghana.
| | - Richard Harry Asmah
- Department of Medical Laboratory Sciences, School of Biomedical and Allied Health Sciences, College of Health Sciences, University of Ghana, Accra, Ghana.
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Nami Y, Abdullah N, Haghshenas B, Radiah D, Rosli R, Khosroushahi AY. Assessment of probiotic potential and anticancer activity of newly isolated vaginal bacterium Lactobacillus plantarum 5BL. Microbiol Immunol 2015; 58:492-502. [PMID: 25039934 DOI: 10.1111/1348-0421.12175] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2014] [Revised: 06/17/2014] [Accepted: 07/01/2014] [Indexed: 11/29/2022]
Abstract
Numerous bacteria in and on its external parts protect the human body from harmful threats. This study aimed to investigate the potential beneficial effects of the vaginal ecosystem microbiota. A type of bacteria was isolated from vaginal secretions of adolescent and young adult women, cultured on an appropriate specific culture medium, and then molecularly identified through 16S rDNA gene sequencing. Results of 16S rDNA sequencing revealed that the isolate belongs to the Lactobacillus plantarum species. The isolated strain exhibited probiotic properties such as low pH and high bile salt concentration tolerance, antibiotic susceptibility and antimicrobial activity against some pathogenic bacteria. The anticancer effects of the strain on human cancer cell lines (cervical, HeLa; gastric, AGS; colon, HT-29; breast, MCF-7) and on a human normal cell line (human umbilical vein endothelial cells [HUVEC]) were investigated. Toxic side effects were assessed by studying apoptosis in the treated cells. The strain exhibited desirable probiotic properties and remarkable anticancer activity against the tested human cancer cell lines (P ≤ 0.05) with no significant cytotoxic effects on HUVEC normal cells (P ≤ 0.05). Overall, the isolated strain showed favorable potential as a bioactive therapeutic agent. Therefore, this strain should be subjected to the other required tests to prove its suitability for clinical therapeutic application.
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Ono C, Yoshida M, Kawano N, Miyado K, Umezawa A. Staphylococcus epidermidis is involved in a mechanism for female reproduction in mice. Regen Ther 2015; 1:11-17. [PMID: 31245437 PMCID: PMC6581772 DOI: 10.1016/j.reth.2014.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 11/13/2014] [Accepted: 12/07/2014] [Indexed: 11/20/2022] Open
Abstract
Both external and internal surfaces of organs (e.g., skin, mouth, gut, and intestine) are covered with bacteria, which often contribute to physiological events in host animals. Despite externally opened organs, the presence of bacteria in the mammalian female reproductive tract is uncertain. Here we assessed this problem using wild-type strains of mice, C57BL/6N and ICR. We first demonstrated that bacterial colonies were formed from the oviductal fluid in the C57BL/6N mice with birth experience (“parous”), but not in the mice without birth experience (“non-parous”). Sequence analysis of 16S ribosomal RNA (rRNA) revealed that Staphylococcus epidermidis existed in the oviductal fluid of the parous mice, confirmed by immunohistochemical analysis. Furthermore, extinction of bacterial population with intraperitoneal injection of antibiotics, penicillin G and streptomycin, disturbed the regularly implanted pattern of embryos in ICR mice. Our results indicate that symbiotic S. epidermidis plays a role in interaction between embryo and uterus upon implantation in mice.
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Affiliation(s)
- Chihiro Ono
- Misaki Marine Biological Station, Graduate School of Science, University of Tokyo, Miura, Kanagawa 238-0225, Japan
| | - Manabu Yoshida
- Misaki Marine Biological Station, Graduate School of Science, University of Tokyo, Miura, Kanagawa 238-0225, Japan
| | - Natsuko Kawano
- Department of Reproductive Biology, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Kenji Miyado
- Department of Reproductive Biology, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
| | - Akihiro Umezawa
- Department of Reproductive Biology, National Center for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo 157-8535, Japan
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Ruíz FO, Pascual L, Giordano W, Barberis L. Bacteriocins and other bioactive substances of probiotic lactobacilli as biological weapons against Neisseria gonorrhoeae. Pathog Dis 2015; 73:ftv013. [PMID: 25673666 DOI: 10.1093/femspd/ftv013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In the search of new antimicrobial agents against Neisseria gonorrhoeae, the bacteriocins-producing probiotic lactobacilli deserve special attention. The inhibitory effects of biosubstances such as organic acids, hydrogen peroxide and each bacteriocin-like inhibitory substance (BLIS) L23 and L60 on the growth of different gonococcal strains were investigated. Different non-treated and treated cell-free supernatants of two probiotic lactobacilli containing these metabolites were used. The aims of this work were (i) to evaluate the antimicrobial activity of the biosubstances produced by two probiotic lactobacilli, estimating the proportion in which each of them is responsible for the inhibitory effect, (ii) to define their minimum inhibitory concentrations (MICs) and, (iii) to determine the potential interactions between these biosubstances against N. gonorrhoeae. The main antimicrobial metabolites were the BLIS-es L23 and L60 in comparison with other biosubstances. Proportionally, their contributions to the inhibition on the gonococcal growth were 87.28% and 80.66%, respectively. The MIC values of bacteriocins were promising since these substances, when diluted, showed considerable inhibitory activity for all gonococci. In the interaction between bacteriocins, 100% of synergism was found on the gonococcal growth. In summary, this study indicates that both L23 and L60 could potentially serve to design new bioproducts against N. gonorrhoeae.
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Affiliation(s)
- Francisco O Ruíz
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Río Cuarto, 5800 Río Cuarto, Córdoba, Argentina Departamento de Microbiología e Inmunología, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, 5800 Río Cuarto, Córdoba, Argentina
| | - Liliana Pascual
- Departamento de Microbiología e Inmunología, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, 5800 Río Cuarto, Córdoba, Argentina
| | - Walter Giordano
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Río Cuarto, 5800 Río Cuarto, Córdoba, Argentina Departamento de Biología Molecular, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, 5800 Río Cuarto, Córdoba, Argentina
| | - Lucila Barberis
- Departamento de Microbiología e Inmunología, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, 5800 Río Cuarto, Córdoba, Argentina
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Stingley RL, Liu H, Mullis LB, Elkins CA, Hart ME. Staphylococcus aureus toxic shock syndrome toxin-1 (TSST-1) production and Lactobacillus species growth in a defined medium simulating vaginal secretions. J Microbiol Methods 2014; 106:57-66. [PMID: 25135489 DOI: 10.1016/j.mimet.2014.08.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 08/05/2014] [Accepted: 08/06/2014] [Indexed: 11/18/2022]
Abstract
Lactobacillus species are commensal with the healthy vaginal environment and inhibit the growth of many pathogenic bacteria in the vaginal tract by a variety of mechanisms, such as the production of hydrogen peroxide, organic acids, and antimicrobial substances. Simulation of the vaginal environment is crucial for proper investigation of the effects of Lactobacillus species on pathogenic bacteria. In this study, we modified a medium used to simulate vaginal secretions to improve the growth of toxic shock syndrome toxin-1 (TSST-1)-producing Staphylococcus aureus clinical strains and Lactobacillus species so that interactions between these bacteria may be examined. A medium consisting of basal salts, vitamins, albumin, glycogen, mucin, urea, sodium bicarbonate, polyoxyethylene sorbitan monolaurate, and amino acids supported the growth of S. aureus and the production of TSST-1 as determined by Western analysis. Improved growth of the Lactobacillus species was seen when this same medium was supplemented with manganese chloride, sodium acetate, and an increase in glucose concentration. However, growth of S. aureus in the supplemented medium resulted in reduced levels of TSST-1. Production of TSST-1 was not detected in a medium routinely used for the growth of Lactobacillus species although S. aureus growth was not inhibited. The development of an improved genital tract secretion medium provides a more authentic environment in which to study the interactions of Lactobacillus species and vaginal pathogens, such as S. aureus.
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Affiliation(s)
- Robin L Stingley
- Office of Scientific Coordination, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Huanli Liu
- Office of Regulatory Affairs, Arkansas Regional Laboratories, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Lisa B Mullis
- Division of Microbiology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Christopher A Elkins
- Office of Applied Research and Safety Assessment, Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, MD, USA
| | - Mark E Hart
- Division of Microbiology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA; Department of Microbiology and Immunology, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
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n-Butanol extract of Rhynchosia volubilis Lour: A potent spermicidal agent In Vitro. ACTA ACUST UNITED AC 2014; 34:398-402. [DOI: 10.1007/s11596-014-1290-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2013] [Revised: 02/21/2014] [Indexed: 10/25/2022]
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21
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Effect of two probiotic strains of Lactobacillus on in vitro adherence of Listeria monocytogenes, Streptococcus agalactiae, and Staphylococcus aureus to vaginal epithelial cells. Curr Microbiol 2014; 68:679-84. [PMID: 24469557 DOI: 10.1007/s00284-014-0524-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 12/04/2013] [Indexed: 10/25/2022]
Abstract
The lactobacilli probiotics maintain a normal vaginal biota and prevent disease recurrence. This microorganisms form a pellicle on the vaginal epithelium that acts as a biologic barrier against colonization by pathogenic bacteria. In this paper were realized assays of exclusion, competition, and displacement. For these test, vaginal epithelial cells, two strains of lactobacilli and pathogenic bacteria (Staphylococcus aureus, Streptococcus agalactiae and Listeria monocytogenes) were used. The lactobacilli strains showed a great capacity of adherence, with a mean of 83.5 ± 26.67 Lactobacillus fermentum cells and 56.2 ± 20.87 Lactobacillus rhamnosus cells per vaginal epithelial cells. L. fermentum and L. rhamnosus were able to reduce the adherence of S. aureus, S. agalactiae and L. monocytogenes in a significant level in this assay (P < 0.01). The lactobacilli used in this study protect the vaginal epithelium through a series of barriers and interference mechanisms. The aim of present study was to assess the ability of vaginal Lactobacillus strains, selected for their probiotic properties, to block the adherence of pathogenic microorganisms in vitro by displacement, competition, and exclusion mechanisms.
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22
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Chiang IY, Worobo RW, Churey JJ, Henick-Kling T. Growth inhibition of foodborne pathogens by Oenococcus oeni. J Food Sci 2012; 77:M15-9. [PMID: 22260113 DOI: 10.1111/j.1750-3841.2011.02446.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
UNLABELLED To explore the possibility of using Oenococcus oeni to inhibit foodborne pathogens, and to characterize antimicrobial compounds produced by O. oeni, 24 strains of O. oeni were tested for their ability to inhibit growth of foodborne pathogens, Escherichia coli O157:H7, Salmonella enteritidis, and Listeria monocytogenes by using the spot-on-lawn method. Of the 24 strains, 17 strains were able to inhibit all 3 pathogens in this study. Proteases, catalase, and buffer solutions were used for determining the type of inhibitory compounds produced from 4 selected strains with stronger inhibitory activity. Antimicrobial activity of 2 strains against the pathogens was completely inactivated by buffer solution, and other 2 strains against E. coli O157:H7 were partially removed. The antimicrobial compound was not sensitive to selected proteases and catalase. PRACTICAL APPLICATION There is little information available about using O. oeni for human pathogens control. The results of this study revealed such discovery and potential applications for pathogen control.
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Affiliation(s)
- I-Yuan Chiang
- Department of Nutrition and Health Sciences, Kainan University No.1, Luzhu Township, Taoyuan County, Taiwan
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23
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Theoretical study on the hydration of hydrogen peroxide in terms of ab initio method and atom-bond electronegativity equalization method fused into molecular mechanics. ACTA ACUST UNITED AC 2012. [DOI: 10.1007/s11458-011-0259-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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24
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Ruíz FO, Gerbaldo G, García MJ, Giordano W, Pascual L, Barberis IL. Synergistic Effect Between Two Bacteriocin-like Inhibitory Substances Produced by Lactobacilli Strains with Inhibitory Activity for Streptococcus agalactiae. Curr Microbiol 2012; 64:349-56. [DOI: 10.1007/s00284-011-0077-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2011] [Accepted: 12/22/2011] [Indexed: 11/30/2022]
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25
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Wang Q, Cui Y, Wang W, Xu J, Xu L. Production of two bacteriocins in various growth conditions produced by gram-positive bacteria isolated from chicken cecum. Can J Microbiol 2012; 58:93-101. [DOI: 10.1139/w11-108] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Lactobacillus plantarum CLP29 and Enterococcus faecium CLE34 isolated from the cecal contents of young broiler chicks were identified based on physiological and biochemical characteristics, and identification was confirmed by 16S rRNA sequencing. Both bacteria showed a broad range of inhibitory action against bacteria such as Salmonella and Escherichia coli and produced two peptides, plantaricin CLP29 and enterocin CLE34. Treatment with proteinase K, trypase, or benase resulted in the loss of activity of the two peptides, confirming their proteinaceous nature. The highest activity levels for both bacteria were recorded in de Man – Rogosa – Sharpe agar at pH 5.0, 6.0, and 7.0, at 37 °C. Carbon and nitrogen sources affected the antibacterial activities of the two bacteriocins in different combinations, which suggested that the antibacterial abilities of different bacteriocins produced in nutrient sources were various.
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Affiliation(s)
- Qiuju Wang
- College of Animal Science and Veterinary, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province 163319, People’s Republic of China
| | - Yizhe Cui
- College of Animal Science and Veterinary, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang Province 163319, People’s Republic of China
| | - Wenmei Wang
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang Province 150030, People’s Republic of China
| | - Jili Xu
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang Province 150030, People’s Republic of China
| | - Li Xu
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang Province 150030, People’s Republic of China
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Ureaplasma urealyticum and Mycoplasma hominis Sensitivity to Bacteriocins Produced by Two Lactobacilli Strains. Curr Microbiol 2011; 63:360-5. [DOI: 10.1007/s00284-011-9989-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2011] [Accepted: 07/20/2011] [Indexed: 10/17/2022]
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Lactobacillus jensenii surface-associated proteins inhibit Neisseria gonorrhoeae adherence to epithelial cells. Infect Immun 2010; 78:3103-11. [PMID: 20385752 DOI: 10.1128/iai.01200-09] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
High numbers of lactobacilli in the vaginal tract have been correlated with a decreased risk of infection by the sexually transmitted pathogen Neisseria gonorrhoeae. We have previously shown that Lactobacillus jensenii, one of the most prevalent microorganisms in the healthy human vaginal tract, can inhibit gonococcal adherence to epithelial cells in culture. Here we examined the role of the epithelial cells and the components of L. jensenii involved in the inhibition of gonococcal adherence. L. jensenii inhibited the adherence of gonococci to glutaraldehyde-fixed epithelial cells like it inhibited the adherence of gonococci to live epithelial cells, suggesting that the epithelial cells do not need to be metabolically active for the inhibition to occur. In addition, methanol-fixed L. jensenii inhibited gonococcal adherence to live epithelial cells, indicating that L. jensenii uses a constitutive component to inhibit gonococcal interactions with epithelial cells. Proteinase K treatment of methanol-fixed lactobacilli eliminated the inhibitory effect, suggesting that the inhibitory component contains protein. Released surface components (RSC) isolated from L. jensenii were found to contain at least two inhibitory components, both of which are protease sensitive. Using anion-exchange and size exclusion chromatography, an inhibitory protein which exhibits significant similarity to the enzyme enolase was isolated. A recombinant His6-tagged version of this protein was subsequently produced and shown to inhibit gonococcal adherence to epithelial cells in a dose-dependent manner.
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Ruiz FO, Gerbaldo G, Asurmendi P, Pascual LM, Giordano W, Barberis IL. Antimicrobial activity, inhibition of urogenital pathogens, and synergistic interactions between lactobacillus strains. Curr Microbiol 2009; 59:497-501. [PMID: 19777307 DOI: 10.1007/s00284-009-9465-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2009] [Accepted: 07/15/2009] [Indexed: 11/29/2022]
Abstract
Lactobacillus fermentum strain L23 and L. rhamnosus strain L60 were selected as an alternative treatment to prevent or treat urogenital infections based on their probiotic properties and production of bacteriocins. The objectives of the present work were to study the inhibitory activities of these two bacteriocin-producing strains, and to analyze the interactions between pairs of bacteriocins that inhibit urogenital pathogens. Antimicrobial activity tests of L23 and L60 were performed by a diffusion method with 207 bacterial strains, isolated from female patients presenting a urogenital infection. Inhibitory substances interaction tests were carried out by using a streak-diffusion method on agar plates. One hundred percent of the clinical isolates showed sensitivity to the antimicrobial substances produced by L23 and L60. The selected lactobacilli produced larger inhibition halos when compared to several antibiotics commonly used for treating these infections. Synergistic interactions and indifferent interactions were recorded in 68.6% and 31.4% of the cases, respectively. No antagonistic interactions were observed. In conclusion, the bacteriocin-producing strains L23 and L60 are potential candidates for probiotic prophylaxis and treatment of urogenital disorders in women.
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Affiliation(s)
- Francisco O Ruiz
- Departamento Microbiología e Inmunología, Facultad de Ciencias, Exactas, Fco-Qcas y Naturales, Universidad Nacional de Río Cuarto (UNRC), Ruta Nacional 36 Km.601. CP: X5804BYA, 5800 Río Cuarto, Córdoba, Argentina
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Matu MN, Orinda GO, Njagi ENM, Cohen CR, Bukusi EA. In vitro inhibitory activity of human vaginal lactobacilli against pathogenic bacteria associated with bacterial vaginosis in Kenyan women. Anaerobe 2009; 16:210-5. [PMID: 19925874 DOI: 10.1016/j.anaerobe.2009.11.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2008] [Revised: 11/04/2009] [Accepted: 11/09/2009] [Indexed: 10/20/2022]
Abstract
Lactobacilli have been shown to inhibit in vitro growth of many pathogens and have been used as probiotics to treat a broad range of gastrointestinal and/or vaginal disorders. We sought to determine the in vitro inhibitory potential of lactobacilli of vaginal origin to some bacteria associated with bacterial vaginosis (BV), to characterize the inhibitory substances produced by these lactobacilli and to assess H2O2 production. Vaginal specimens were obtained by swabbing the lateral vaginal walls from 107 women two months following BV treatment. One hundred and fifty eight Lactobacillus spp. were isolated in 82 of the 107 women. Lactobacillus jensenii was the predominant strain isolated among these women (29/158; 18.4%). Among 158 culture supernatants tested for antibacterial activity against BV-associated bacteria, none inhibited the growth of Bacteroides fragilis while 23% (37/158), 28% (45/158) and 29% (46/158) inhibited the growth of Prevotella bivia, Gardnerella vaginalis and Mobiluncus spp. respectively. The lactobacilli produced supernatants with a pH range between 2.62 and 6.71; the highly acidic (pH 2-3.99) supernatants were more inhibitory to the indicator strains. There was significant reduction in the mean zones of inhibition following chemical and physical treatment of the supernatants (p = 0.0025). Acid, bacteriocins and H2O2 demonstrated potential for antagonism of the bacterial pathogens. These substances may augment each other rather that each working independently on the pathogens.
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Affiliation(s)
- Martin N Matu
- Department of Biochemistry and Biotechnology, Kenyatta University, P.O. Box 43844, 00100 Nairobi, Kenya.
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Muench DF, Kuch DJ, Wu H, Begum AA, Veit SJ, Pelletier ME, Soler-García AA, Jerse AE. Hydrogen peroxide-producing lactobacilli inhibit gonococci in vitro but not during experimental genital tract infection. J Infect Dis 2009; 199:1369-78. [PMID: 19301977 DOI: 10.1086/597390] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Commensal lactobacilli that produce hydrogen peroxide (H(2)O(2)) inhibit Neisseria gonorrhoeae in vitro, and clinical data suggest that they are associated with a reduced risk of gonorrhea. We precolonized mice with Lactobacillus crispatus and then challenged them with N. gonorrhoeae, to measure the effects of H(2)O(2)-producing lactobacilli on gonococcal infection. We found no difference in the duration of infection or the number of gonococci recovered from untreated mice and mice colonized with L. crispatus. A gonococcal catalase mutant and a catalase, cytochrome C peroxidase mutant exhibited greater susceptibility to L. crispatus in vitro than did wild-type bacteria; however, recovery of these mutants from mice was not affected by L. crispatus. We also found no evidence that utilization of lactobacillus-produced lactate by N. gonorrhoeae balances the detrimental effects of H(2)O(2) during infection. We conclude that the association between lactobacilli and gonococci is complex and may be subject to factors that have not been reproduced in vitro.
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Affiliation(s)
- Dawn F Muench
- Department of Microbiology and Immunology, F Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
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Elkins CA, Muñoz ME, Mullis LB, Stingley RL, Hart ME. Lactobacillus-mediated inhibition of clinical toxic shock syndrome Staphylococcus aureus strains and its relation to acid and peroxide production. Anaerobe 2008; 14:261-7. [PMID: 18926917 DOI: 10.1016/j.anaerobe.2008.08.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2008] [Revised: 08/01/2008] [Accepted: 08/04/2008] [Indexed: 11/29/2022]
Abstract
The inhibitory activities of 39 strains representing 20 different species of Lactobacillus toward a menstrual toxic shock syndrome (TSS) Staphylococcus aureus archetype strain MN8 were investigated. Nearly every strain (38 of 39) produced an inhibitory effect under both aerobic and anaerobic conditions when assayed on agar medium. In addition, the MN8 inhibition was conserved against at least 10 other clinical TSS S. aureus isolates and, interestingly, required actively growing cultures of Lactobacillus (verified with a two-well co-culture system in broth medium). This general uniform inhibition could be ameliorated by organic buffer (PIPES) supplied in the growth medium and, with only one exception, MRS medium adjusted with non-organic acid (HCl) failed to support growth of TSS strains at or below pH 5.5. By comparison, the vast majority of lactobacilli in this study decreased culture pH to a range of 4-5. Hydrogen peroxide production by the lactobacilli was also assessed and verified by two different methodologies revealing a broad spectrum of phenotypes that, contrary to reports touting its effectiveness, did not seem to correspond with our inhibition studies. Furthermore, resistances to peroxide by MN8, other TSS strains, and a subset of lactobacilli used in this study were nearly identical whereas the S. aureus collection was slightly more sensitive to racemic lactic acid than the lactobacilli. Collectively, these data suggest that the underlying inhibition toward Staphylococcus is generally conserved in Lactobacillus sp. and is related to a common factor in this genus involving promotion of acidic conditions.
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Affiliation(s)
- Christopher A Elkins
- Division of Microbiology, National Center for Toxicological Research, United States Food and Drug Administration, 3900 NCTR Drive, Jefferson, AR 72079-9502, USA.
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Analysis of vaginal lactobacilli from healthy and infected Brazilian women. Appl Environ Microbiol 2008; 74:4539-42. [PMID: 18502927 DOI: 10.1128/aem.00284-08] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Culture-dependent PCR-amplified rRNA gene restriction analysis and culture-independent (PCR-denaturing gradient gel electrophoresis) methodologies were used to examine vaginal lactobacilli from Brazilian women who were healthy or had been diagnosed with vulvovaginal candidiasis (VVC) or bacterial vaginosis. Only Lactobacillus crispatus was detected accordingly by both methods, and H(2)O(2)-producing lactobacilli were not associated with protection against VVC.
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Safety study of an antimicrobial peptide lactocin 160, produced by the vaginal Lactobacillus rhamnosus. Infect Dis Obstet Gynecol 2008; 2007:78248. [PMID: 18273406 PMCID: PMC2216118 DOI: 10.1155/2007/78248] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2007] [Accepted: 11/12/2007] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE To evaluate the safety of the antimicrobial peptide, lactocin 160. METHODS Lactocin 160, a product of vaginal probiotic Lactobacillus rhamnosus 160 was evaluated for toxicity and irritation. An in vitro human organotypic vaginal-ectocervical tissue model (EpiVaginal) was employed for the safety testing by determining the exposure time to reduce tissue viability to 50% (ET-50). Hemolytic activity of lactocin160 was tested using 8% of human erythrocyte suspension. Susceptibility of lactobacilli to lactocin160 was also studied. Rabbit vaginal irritation (RVI) model was used for an in vivo safety evaluation. RESULTS The ET-50 value was 17.5 hours for lactocin 160 (4.9 hours for nonoxynol 9, N9). Hemolytic activity of lactocin 160 was 8.2% (N9 caused total hemolysis). Lactobacilli resisted to high concentrations of peptide preparation. The RVI model revealed slight vaginal irritation. An average irritation index grade was evaluated as "none." CONCLUSIONS Lactocin 160 showed minimal irritation and has a good potential for intravaginal application.
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Cho GS, Do HK, Bae CY, Cho GS, Whang CW, Shin HK. Candidate of Probiotic Bacteria Isolated from Several Jeotgals: Korean Traditional Fermented Seafoods. Prev Nutr Food Sci 2006. [DOI: 10.3746/jfn.2006.11.2.140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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