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Human Milk Microbiota in Sub-Acute Lactational Mastitis Induces
www.nature.com/scientificreports OPEN Human milk microbiota in sub‑acute lactational mastitis induces infammation and undergoes changes in composition, diversity and load Alba Boix‑Amorós1,2,4, Maria Teresa Hernández‑Aguilar3, Alejandro Artacho2, Maria Carmen Collado1,5 & Alex Mira1,5* Sub‑acute mastitis (SAM) is a prevalent disease among lactating women, being one of the main reasons for early weaning. Although the etiology and diagnosis of acute mastitis (AM) is well established, little is known about the underlying mechanisms causing SAM. We collected human milk samples from healthy and SAM‑sufering mothers, during the course of mastitis and after symptoms disappeared. Total (DNA‑based) and active (RNA‑based) microbiota were analysed by 16S rRNA gene sequencing and qPCR. Furthermore, mammary epithelial cell lines were exposed to milk pellets, and levels of the pro‑infammatory interleukin IL8 were measured. Bacterial load was signifcantly higher in the mastitis samples and decreased after clinical symptoms disappeared. Bacterial diversity was lower in SAM milk samples, and diferences in bacterial composition and activity were also found. Contrary to AM, the same bacterial species were found in samples from healthy and SAM mothers, although at diferent proportions, indicating a dysbiotic ecological shift. Finally, mammary epithelial cell exposure to SAM milk pellets showed an over‑production of IL8. Our work therefore supports that SAM has a bacterial origin, with increased bacterial loads, reduced diversity and altered composition, which partly recovered after treatment, suggesting a polymicrobial and variable etiology. Human milk is a complex and live fuid, containing a relatively diverse and potential benefcial microbiota under healthy conditions1, which enhances gut microbiota colonization, likely stimulates commensal tolerance and supports the maturation of the immune system2–5. -
1 Aix-Marseille Universite Faculte De Médecine De
AIX-MARSEILLE UNIVERSITE FACULTE DE MÉDECINE DE MARSEILLE ECOLE DOCTORALE DES SCIENCES DE LA VIE ET DE LA SANTE T H È S E Présentée et publiquement soutenue devant LA FACULTÉ DE MÉDECINE DE MARSEILLE Le 21 Novembre 2019 Par Mr DIALLO Ousmane Oumou Né le 02 Février 1988 à Dalaba SURVEILLANCE DE LA RESISTANCE AUX ANTIBIOTIQUES DANS LA REGION PROVENCE ALPES COTE D’AZUR A PARTIR DES SYSTEMES DE SURVEILLANCE (MARSS et PACASURVE) Pour obtenir le grade de Doctorat d’Aix-Marseille Universités Spécialité Pathologie Humaine : Maladies infectieuses Membres du jury de Thèse Pr. Laurence Camoin Président du jury Pr. Jean Philippe Lavigne Rapporteur Pr. Max Maurin Rapporteur Pr. Jean-Marc Rolain Directeur de thèse MEPHI, Aix Marseille Université, IHU Méditerranée Infection, AP-HM, Marseille Faculté de Médecine, Marseille. 1 1 AVANT PROPOS Le format de présentation de cette thèse correspond à une recommandation de la spécialité Maladies Infectieuses et Microbiologie, à l’intérieur du Master des Sciences de la Vie et de la Santé qui dépend de l’École Doctorale des Sciences de la Vie de Marseille. Le candidat est amené à respecter des règles qui lui sont imposées et qui comportent un format de thèse utilisé dans le Nord de l’Europe et qui permet un meilleur rangement que les thèses traditionnelles. Par ailleurs, la partie introduction et bibliographie est remplacée par une revue envoyée dans un journal afin de permettre une évaluation extérieure de la qualité de la revue et de permettre à l’étudiant de commencer le plus tôt possible une bibliographie exhaustive sur le domaine de cette thèse. -
WO 2018/064165 A2 (.Pdf)
(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date WO 2018/064165 A2 05 April 2018 (05.04.2018) W !P O PCT (51) International Patent Classification: Published: A61K 35/74 (20 15.0 1) C12N 1/21 (2006 .01) — without international search report and to be republished (21) International Application Number: upon receipt of that report (Rule 48.2(g)) PCT/US2017/053717 — with sequence listing part of description (Rule 5.2(a)) (22) International Filing Date: 27 September 2017 (27.09.2017) (25) Filing Language: English (26) Publication Langi English (30) Priority Data: 62/400,372 27 September 2016 (27.09.2016) US 62/508,885 19 May 2017 (19.05.2017) US 62/557,566 12 September 2017 (12.09.2017) US (71) Applicant: BOARD OF REGENTS, THE UNIVERSI¬ TY OF TEXAS SYSTEM [US/US]; 210 West 7th St., Austin, TX 78701 (US). (72) Inventors: WARGO, Jennifer; 1814 Bissonnet St., Hous ton, TX 77005 (US). GOPALAKRISHNAN, Vanch- eswaran; 7900 Cambridge, Apt. 10-lb, Houston, TX 77054 (US). (74) Agent: BYRD, Marshall, P.; Parker Highlander PLLC, 1120 S. Capital Of Texas Highway, Bldg. One, Suite 200, Austin, TX 78746 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. -
Phenotypic and Microbial Influences on Dairy Heifer Fertility and Calf Gut Microbial Development
Phenotypic and microbial influences on dairy heifer fertility and calf gut microbial development Connor E. Owens Dissertation submitted to the faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for the degree of Doctor of Philosophy In Animal Science, Dairy Rebecca R. Cockrum Kristy M. Daniels Alan Ealy Katharine F. Knowlton September 17, 2020 Blacksburg, VA Keywords: microbiome, fertility, inoculation Phenotypic and microbial influences on dairy heifer fertility and calf gut microbial development Connor E. Owens ABSTRACT (Academic) Pregnancy loss and calf death can cost dairy producers more than $230 million annually. While methods involving nutrition, climate, and health management to mitigate pregnancy loss and calf death have been developed, one potential influence that has not been well examined is the reproductive microbiome. I hypothesized that the microbiome of the reproductive tract would influence heifer fertility and calf gut microbial development. The objectives of this dissertation were: 1) to examine differences in phenotypes related to reproductive physiology in virgin Holstein heifers based on outcome of first insemination, 2) to characterize the uterine microbiome of virgin Holstein heifers before insemination and examine associations between uterine microbial composition and fertility related phenotypes, insemination outcome, and season of breeding, and 3) to characterize the various maternal and calf fecal microbiomes and predicted metagenomes during peri-partum and post-partum periods and examine the influence of the maternal microbiome on calf gut development during the pre-weaning phase. In the first experiment, virgin Holstein heifers (n = 52) were enrolled over 12 periods, on period per month. On -3 d before insemination, heifers were weighed and the uterus was flushed. -
Microbiota of the Tongue and Systemic Connections: the Examination of the Tongue As an Integrated Approach in Oral Medicine
Review Microbiota of the Tongue and Systemic Connections: The Examination of the Tongue as an Integrated Approach in Oral Medicine Cinzia Casu 1,* , Giovanna Mosaico 2,* , Valentino Natoli 3,4 , Antonio Scarano 5, Felice Lorusso 5 and Francesco Inchingolo 3 1 Department of Surgical Sciences, Oral Biotechnology Laboratory (OBL), University of Cagliari, 09126 Cagliari, Italy 2 RDH, Freelancer Researcher, 72100 Brindisi, Italy 3 DDS, Private Dental Practice, 72015 Fasano, Italy; [email protected] (V.N.); [email protected] (F.I.) 4 Department of Interdisciplinary Medicine, University of Medicine Aldo Moro, 70124 Bari, Italy 5 Department of Innovative Technologies in Medicine and Dentistry, University of Chieti-Pescara, 66100 Chieti, Italy; [email protected] (A.S.); [email protected] (F.L.) * Correspondence: [email protected] (C.C.); [email protected] (G.M.); Tel.: +39-070-609-2294 (C.C.) Abstract: The tongue is able to quickly reflect the state of health or disease of the human body. Tongue inspection is an important diagnostic approach. It is a unique method that allows to explore the pathogenesis of diseases based on the guiding principles of the holistic concept that involves the observation of changes in the lining of the tongue in order to understand the physiological functions and pathological changes of the body. It is a potential method of screening and early detection of cancer. However, the subjective inspection of the tongue has a low reliability index, and therefore computerized systems of acquisition of diagnostic bioinformation have been developed to analyze Citation: Casu, C.; Mosaico, G.; the lining of the tongue. -
Molecular Mapping to Species Level of the Tonsillar Crypt Microbiota Associated with Health and Recurrent Tonsillitis
Molecular Mapping to Species Level of the Tonsillar Crypt Microbiota Associated with Health and Recurrent Tonsillitis Anders Jensen1, Helena Fago¨ -Olsen2, Christian Hjort Sørensen2, Mogens Kilian1* 1 Department of Biomedicine, Faculty of Health Sciences, Aarhus University, Aarhus, Denmark, 2 Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Copenhagen University Hospital Gentofte, Copenhagen, Denmark Abstract The human palatine tonsils, which belong to the central antigen handling sites of the mucosal immune system, are frequently affected by acute and recurrent infections. This study compared the microbiota of the tonsillar crypts in children and adults affected by recurrent tonsillitis with that of healthy adults and children with tonsillar hyperplasia. An in-depth 16S rRNA gene based pyrosequencing approach combined with a novel strategy that included phylogenetic analysis and detection of species-specific sequence signatures enabled identification of the major part of the microbiota to species level. A complex microbiota consisting of between 42 and 110 taxa was demonstrated in both children and adults. This included a core microbiome of 12 abundant genera found in all samples regardless of age and health status. Yet, Haemophilus influenzae, Neisseria species, and Streptococcus pneumoniae were almost exclusively detected in children. In contrast, Streptococcus pseudopneumoniae was present in all samples. Obligate anaerobes like Porphyromonas, Prevotella, and Fusobacterium were abundantly present in children, but the species diversity of Porphyromonas and Prevotella was larger in adults and included species that are considered putative pathogens in periodontal diseases, i.e. Porphyromonas gingivalis, Porphyromonas endodontalis, and Tannerella forsythia. Unifrac analysis showed that recurrent tonsillitis is associated with a shift in the microbiota of the tonsillar crypts. -
( 12 ) United States Patent
US009956282B2 (12 ) United States Patent ( 10 ) Patent No. : US 9 ,956 , 282 B2 Cook et al. (45 ) Date of Patent: May 1 , 2018 ( 54 ) BACTERIAL COMPOSITIONS AND (58 ) Field of Classification Search METHODS OF USE THEREOF FOR None TREATMENT OF IMMUNE SYSTEM See application file for complete search history . DISORDERS ( 56 ) References Cited (71 ) Applicant : Seres Therapeutics , Inc. , Cambridge , U . S . PATENT DOCUMENTS MA (US ) 3 ,009 , 864 A 11 / 1961 Gordon - Aldterton et al . 3 , 228 , 838 A 1 / 1966 Rinfret (72 ) Inventors : David N . Cook , Brooklyn , NY (US ) ; 3 ,608 ,030 A 11/ 1971 Grant David Arthur Berry , Brookline, MA 4 ,077 , 227 A 3 / 1978 Larson 4 ,205 , 132 A 5 / 1980 Sandine (US ) ; Geoffrey von Maltzahn , Boston , 4 ,655 , 047 A 4 / 1987 Temple MA (US ) ; Matthew R . Henn , 4 ,689 ,226 A 8 / 1987 Nurmi Somerville , MA (US ) ; Han Zhang , 4 ,839 , 281 A 6 / 1989 Gorbach et al. Oakton , VA (US ); Brian Goodman , 5 , 196 , 205 A 3 / 1993 Borody 5 , 425 , 951 A 6 / 1995 Goodrich Boston , MA (US ) 5 ,436 , 002 A 7 / 1995 Payne 5 ,443 , 826 A 8 / 1995 Borody ( 73 ) Assignee : Seres Therapeutics , Inc. , Cambridge , 5 ,599 ,795 A 2 / 1997 McCann 5 . 648 , 206 A 7 / 1997 Goodrich MA (US ) 5 , 951 , 977 A 9 / 1999 Nisbet et al. 5 , 965 , 128 A 10 / 1999 Doyle et al. ( * ) Notice : Subject to any disclaimer , the term of this 6 ,589 , 771 B1 7 /2003 Marshall patent is extended or adjusted under 35 6 , 645 , 530 B1 . 11 /2003 Borody U . -
Evaluation of MALDI Biotyper for Identification of Taylorella Equigenitalis and Taylorella Asinigenitalis Kristina Lantz Iowa State University
Iowa State University Capstones, Theses and Graduate Theses and Dissertations Dissertations 2017 Evaluation of MALDI Biotyper for identification of Taylorella equigenitalis and Taylorella asinigenitalis Kristina Lantz Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/etd Part of the Microbiology Commons, and the Veterinary Medicine Commons Recommended Citation Lantz, Kristina, "Evaluation of MALDI Biotyper for identification of Taylorella equigenitalis and Taylorella asinigenitalis" (2017). Graduate Theses and Dissertations. 16520. https://lib.dr.iastate.edu/etd/16520 This Thesis is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Graduate Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. Evaluation of MALDI Biotyper for identification of Taylorella equigenitalis and Taylorella asinigenitalis by Kristina Lantz A thesis submitted to the graduate faculty in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Major: Veterinary Microbiology Program of Study Committee: Ronald Griffith, Major Professor Steve Carlson Matthew Erdman Timothy Frana The student author and the program of study committee are solely responsible for the content of this thesis. The Graduate College will ensure this thesis is globally accessible and will not permit -
From Genotype to Phenotype: Inferring Relationships Between Microbial Traits and Genomic Components
From genotype to phenotype: inferring relationships between microbial traits and genomic components Inaugural-Dissertation zur Erlangung des Doktorgrades der Mathematisch-Naturwissenschaftlichen Fakult¨at der Heinrich-Heine-Universit¨atD¨usseldorf vorgelegt von Aaron Weimann aus Oberhausen D¨usseldorf,29.08.16 aus dem Institut f¨urInformatik der Heinrich-Heine-Universit¨atD¨usseldorf Gedruckt mit der Genehmigung der Mathemathisch-Naturwissenschaftlichen Fakult¨atder Heinrich-Heine-Universit¨atD¨usseldorf Referent: Prof. Dr. Alice C. McHardy Koreferent: Prof. Dr. Martin J. Lercher Tag der m¨undlichen Pr¨ufung: 24.02.17 Selbststandigkeitserkl¨ arung¨ Hiermit erkl¨areich, dass ich die vorliegende Dissertation eigenst¨andigund ohne fremde Hilfe angefertig habe. Arbeiten Dritter wurden entsprechend zitiert. Diese Dissertation wurde bisher in dieser oder ¨ahnlicher Form noch bei keiner anderen Institution eingereicht. Ich habe bisher keine erfolglosen Promotionsversuche un- ternommen. D¨usseldorf,den . ... ... ... (Aaron Weimann) Statement of authorship I hereby certify that this dissertation is the result of my own work. No other person's work has been used without due acknowledgement. This dissertation has not been submitted in the same or similar form to other institutions. I have not previously failed a doctoral examination procedure. Summary Bacteria live in almost any imaginable environment, from the most extreme envi- ronments (e.g. in hydrothermal vents) to the bovine and human gastrointestinal tract. By adapting to such diverse environments, they have developed a large arsenal of enzymes involved in a wide variety of biochemical reactions. While some such enzymes support our digestion or can be used for the optimization of biotechnological processes, others may be harmful { e.g. mediating the roles of bacteria in human diseases. -
Isobaculum Melis Gen. Nov., Sp. Nov., a Carnobacterium-Like Organism
International Journal of Systematic and Evolutionary Microbiology (2002), 52, 207–210 Printed in Great Britain Isobaculum melis gen. nov., sp. nov., a NOTE Carnobacterium-like organism isolated from the intestine of a badger 1 School of Food Biosciences, Matthew D. Collins,1 Roger A. Hutson,1 Geoffrey Foster,2 Enevold Falsen3 Whiteknights, University 4 of Reading, Reading and Norbert Weiss RG6 6AP, UK 2 SAC Veterinary Science Author for correspondence: Matthew D. Collins. Tel: j44 118 935 7000. Fax: j44 118 926 7917. Division, Drummondhill, e-mail: m.d.collins!reading.ac.uk Inverness, UK 3 Culture Collection, Department of Clinical Phenotypic and phylogenetic studies were performed on a hitherto Bacteriology, University of undescribed facultatively anaerobic, catalase-negative, Gram-positive rod- Go$ teborg, Go$ teborg T Sweden shaped organism, strain M577-94 , isolated from the small intestine of a dead badger. It resembled carnobacteria in terms of its long-chain cellular fatty acid 4 Deutsche Sammlung von Mikroorganismen und composition, but differed markedly from the latter in possessing a cell-wall Zellkulturen GmbH, murein based on L-lysine (type L-Lys–L-Thr–Gly). Comparative 16S rRNA gene Braunschweig, Germany sequencing showed that the unknown bacterium represents a new line closely related to, albeit distinct from, the genera Carnobacterium and Desemzia.On the basis of phylogenetic and phenotypic evidence, it is proposed that strain M577-94T be classified as Isobaculum melis gen. nov., sp. nov. The type strain of Isobaculum melis is CCUG 37660T (l DSM 13760T). Keywords: Isobaculum melis, 16S rRNA, taxonomy, phylogeny The genus Carnobacterium was proposed as the genus known non-spore-forming rod-shaped bacterium, accommodating the species Lactobacillus divergens isolated from a badger, which somewhat resembles and Lactobacillus piscicola and a number of atypical carnobacteria. -
Insights Into 6S RNA in Lactic Acid Bacteria (LAB) Pablo Gabriel Cataldo1,Paulklemm2, Marietta Thüring2, Lucila Saavedra1, Elvira Maria Hebert1, Roland K
Cataldo et al. BMC Genomic Data (2021) 22:29 BMC Genomic Data https://doi.org/10.1186/s12863-021-00983-2 RESEARCH ARTICLE Open Access Insights into 6S RNA in lactic acid bacteria (LAB) Pablo Gabriel Cataldo1,PaulKlemm2, Marietta Thüring2, Lucila Saavedra1, Elvira Maria Hebert1, Roland K. Hartmann2 and Marcus Lechner2,3* Abstract Background: 6S RNA is a regulator of cellular transcription that tunes the metabolism of cells. This small non-coding RNA is found in nearly all bacteria and among the most abundant transcripts. Lactic acid bacteria (LAB) constitute a group of microorganisms with strong biotechnological relevance, often exploited as starter cultures for industrial products through fermentation. Some strains are used as probiotics while others represent potential pathogens. Occasional reports of 6S RNA within this group already indicate striking metabolic implications. A conceivable idea is that LAB with 6S RNA defects may metabolize nutrients faster, as inferred from studies of Echerichia coli.Thismay accelerate fermentation processes with the potential to reduce production costs. Similarly, elevated levels of secondary metabolites might be produced. Evidence for this possibility comes from preliminary findings regarding the production of surfactin in Bacillus subtilis, which has functions similar to those of bacteriocins. The prerequisite for its potential biotechnological utility is a general characterization of 6S RNA in LAB. Results: We provide a genomic annotation of 6S RNA throughout the Lactobacillales order. It laid the foundation for a bioinformatic characterization of common 6S RNA features. This covers secondary structures, synteny, phylogeny, and product RNA start sites. The canonical 6S RNA structure is formed by a central bulge flanked by helical arms and a template site for product RNA synthesis. -
L NOTE Human Vagina Matthew D
international Journal of Systematic Bacteriology (1 999), 49, 1 125-1 128 Printed in Great Britain Aerococcus christensenii sp. nov., f rom the L NOTE human vagina Matthew D. Collins,’ Mar Rodriguez Jovita,’ Roger A. Hutson,’ Maria Ohlen2and Enevold Faisen’ Author for correspondence: Matthew D. Collins. Tel: +44 118 935 7000. Fax: +44 118 926 7917 e-mail : [email protected] 1 Department of Food Phenotypic and phylogenetic studies were performed on two strains of a Science and Technology, hitherto undescribed Aerococcus-like organism isolated from the human University of Reading, Reading RG6 6AP. UK vagina. Comparative 16s rRNA gene sequencing studies demonstratedthat the unknown strains constitute a new subline within the genus Aerococcus. The 2 Culture Collection, Department of Clinical unknown bacterium was readily distinguished from the two currently Bacteriology, University of recognized Aerococcus species, Aerococcus viridans and Aerococcus urinae, by Gsteborg, 5-41346 biochemical tests and electrophoretic analysis of whole-cell proteins. On the Gbteborg, Sweden basis of phylogenetic and phenotypic evidence, it is proposed that the unknown bacterium be classified as Aerococcus christenseniisp. nov. The type strain of A. christenseniiis CCUG 2883IT. Keywords: Aerococcus christensenii sp. nov., phylogeny, taxonomy, 16s rRNA - The genus Aerococcus until recently contained a single UW06T (= CCUG 2883 lT), were submitted to the species, Aerococcus viridans (Williams et al., 1953). Culture Collection of the University of Goteborg by This species is found in a wide range of environments L. K. Rabe and S. L. Hillier (University of Washing- and, although considered saprophytic, has been shown ton, Seattle, USA) for identification. Both strains were to cause disease in lobsters and to be associated, albeit isolated from vaginal sources and tentatively identified rarely, with human infections, e.g.