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Asenova A, Hristova H, Ivanova S, Miteva V, Zhivkova I, Stefanova K, Moncheva P, Nedeva T, Urshev Z, Marinova-Yordanova V, Georgieva T, Tzenova M, Russinova M, Borisova T, Donchev D, Hristova P, Rasheva I. Identification and Characterization of Human Breast Milk and Infant Fecal Cultivable Lactobacilli Isolated in Bulgaria: A Pilot Study. Microorganisms 2024; 12:1839. [PMID: 39338513 PMCID: PMC11433867 DOI: 10.3390/microorganisms12091839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2024] [Revised: 09/02/2024] [Accepted: 09/04/2024] [Indexed: 09/30/2024] Open
Abstract
During the last few decades, the main focus of numerous studies has been on the human breast milk microbiota and its influence on the infant intestinal microbiota and overall health. The presence of lactic acid bacteria in breast milk affects both the quantitative and qualitative composition of the infant gut microbiota. The aim of this study was to assess the most frequently detected cultivable rod-shaped lactobacilli, specific for breast milk of healthy Bulgarian women and fecal samples of their infants over the first month of life, in 14 mother-infant tandem pairs. Additionally, we evaluated the strain diversity among the most common isolated species. A total of 68 Gram-positive and catalase-negative strains were subjected to identification using the MALDI-TOF technique. Predominant cultivable populations belonging to the rod-shaped lactic acid bacteria have been identified as Lacticaseibacillus rhamnosus, Limosilactobacillus fermentum, Lacticaseibacillus paracasei, and Limosilactobacillus reuteri. Also, we confirmed the presence of Lactiplantibacillus plantarum and Lactobacillus gasseri. Up to 26 isolates were selected as representatives and analyzed by 16S rRNA sequencing for strain identity confirmation and a phylogenetic tree based on 16S rRNA gene sequence was constructed. Comparative analysis by four RAPD primers revealed genetic differences between newly isolated predominant L. rhamnosus strains. This pilot study provides data for the current first report concerning the investigation of the characteristic cultivable lactobacilli isolated from human breast milk and infant feces in Bulgaria.
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Affiliation(s)
- Asya Asenova
- Department of General and Industrial Microbiology, Faculty of Biology, Sofia University St. Kliment Ohridski, Dragan Tsankov Blvd 8, 1164 Sofia, Bulgaria; (A.A.); (T.N.); (P.H.)
| | - Hristiyana Hristova
- Department of General and Industrial Microbiology, Faculty of Biology, Sofia University St. Kliment Ohridski, Dragan Tsankov Blvd 8, 1164 Sofia, Bulgaria; (A.A.); (T.N.); (P.H.)
| | - Stanimira Ivanova
- Department of General and Industrial Microbiology, Faculty of Biology, Sofia University St. Kliment Ohridski, Dragan Tsankov Blvd 8, 1164 Sofia, Bulgaria; (A.A.); (T.N.); (P.H.)
| | - Viliana Miteva
- Department of General and Industrial Microbiology, Faculty of Biology, Sofia University St. Kliment Ohridski, Dragan Tsankov Blvd 8, 1164 Sofia, Bulgaria; (A.A.); (T.N.); (P.H.)
| | - Ivelina Zhivkova
- Department of Clinical Microbiology, National Center of Infectious and Parasitic Disease, Yanko Sakuzov Blvd 26, 1504 Sofia, Bulgaria (D.D.)
| | - Katerina Stefanova
- Agrobioinstitute Bulgarian Agriculture Academy, Dragan Tsankov Blvd 8, 1164 Sofia, Bulgaria;
| | - Penka Moncheva
- Department of General and Industrial Microbiology, Faculty of Biology, Sofia University St. Kliment Ohridski, Dragan Tsankov Blvd 8, 1164 Sofia, Bulgaria; (A.A.); (T.N.); (P.H.)
| | - Trayana Nedeva
- Department of General and Industrial Microbiology, Faculty of Biology, Sofia University St. Kliment Ohridski, Dragan Tsankov Blvd 8, 1164 Sofia, Bulgaria; (A.A.); (T.N.); (P.H.)
| | - Zoltan Urshev
- LB Bulgaricum PLC, Malashevska Str. 14, 1113 Sofia, Bulgaria
| | - Victoria Marinova-Yordanova
- Department of General and Industrial Microbiology, Faculty of Biology, Sofia University St. Kliment Ohridski, Dragan Tsankov Blvd 8, 1164 Sofia, Bulgaria; (A.A.); (T.N.); (P.H.)
- Department of Bioactivity of Compouds, Centre of Competence “Sustainable Utilization of Bio Resources and Waste of Medicinal and Aromatic Plants for Innovative Bioactive Products”, Dragan Tsankov Blvd 8, 1164 Sofia, Bulgaria
| | - Tzveta Georgieva
- Department of Applied Genomics and GMO, National Center of Public Health and Analyses, Academic Ivan Geshov Blvd 15, 1431 Sofia, Bulgaria;
| | - Margarita Tzenova
- Department of General and Industrial Microbiology, Faculty of Biology, Sofia University St. Kliment Ohridski, Dragan Tsankov Blvd 8, 1164 Sofia, Bulgaria; (A.A.); (T.N.); (P.H.)
| | - Maria Russinova
- Human Milk Bank, Sava Mihailov Str. 57, 1309 Sofia, Bulgaria (T.B.)
| | | | - Deyan Donchev
- Department of Clinical Microbiology, National Center of Infectious and Parasitic Disease, Yanko Sakuzov Blvd 26, 1504 Sofia, Bulgaria (D.D.)
- Centre of Competence “Fundamental Translational and Clinical Research in Infection and Immunity”, Yanko Sakuzov Blvd 26, 1504 Sofia, Bulgaria
| | - Petya Hristova
- Department of General and Industrial Microbiology, Faculty of Biology, Sofia University St. Kliment Ohridski, Dragan Tsankov Blvd 8, 1164 Sofia, Bulgaria; (A.A.); (T.N.); (P.H.)
| | - Iliyana Rasheva
- Department of General and Industrial Microbiology, Faculty of Biology, Sofia University St. Kliment Ohridski, Dragan Tsankov Blvd 8, 1164 Sofia, Bulgaria; (A.A.); (T.N.); (P.H.)
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Waller ME, Eichhorn CJ, Gutierrez A, Baatz JE, Wagner CL, Chetta KE, Engevik MA. Analyzing the Responses of Enteric Bacteria to Neonatal Intensive Care Supplements. Int J Microbiol 2024; 2024:3840327. [PMID: 39220439 PMCID: PMC11364479 DOI: 10.1155/2024/3840327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 07/25/2024] [Accepted: 07/26/2024] [Indexed: 09/04/2024] Open
Abstract
In the neonatal intensive care unit, adequate nutrition requires various enteral products, including human milk and formula. Human milk is typically fortified to meet increased calorie goals, and infants commonly receive vitamin mixes, iron supplements, and less frequently, thickening agents. We examined the growth of 16 commensal microbes and 10 pathobionts found in the premature infant gut and found that formula, freshly pasteurized milk, and donated banked milk generally increased bacterial growth. Fortification of human milk significantly elevated the growth of all microbes. Supplementation with thickeners or NaCl in general did not stimulate additional growth. Vitamin mix promoted the growth of several commensals, while iron promoted growth of pathobionts. These data indicate that pathobionts in the preterm gut have significant growth advantage with preterm formula, fortified donor milk, and supplemented iron and suggest that the choice of milk and supplements may impact the infant gut microbiota.
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Affiliation(s)
- Megan E. Waller
- Department of Regenerative Medicine and Cell BiologyMedical University of South Carolina, Charleston, USA
| | - Caroline J. Eichhorn
- Department of Regenerative Medicine and Cell BiologyMedical University of South Carolina, Charleston, USA
| | - Alyssa Gutierrez
- Department of Regenerative Medicine and Cell BiologyMedical University of South Carolina, Charleston, USA
| | - John E. Baatz
- Department of PediatricsC.P. Darby Children's Research InstituteMedical University of South Carolina, Charleston, USA
- Department of PediatricsDivision of Neonatal-Perinatal MedicineMedical University of South CarolinaShawn Jenkins Children's Hospital, 10 McClennan Banks Drive, MSC 915, Charleston, SC 29425, USA
| | - Carol L. Wagner
- Department of PediatricsC.P. Darby Children's Research InstituteMedical University of South Carolina, Charleston, USA
- Department of PediatricsDivision of Neonatal-Perinatal MedicineMedical University of South CarolinaShawn Jenkins Children's Hospital, 10 McClennan Banks Drive, MSC 915, Charleston, SC 29425, USA
| | - Katherine E. Chetta
- Department of PediatricsC.P. Darby Children's Research InstituteMedical University of South Carolina, Charleston, USA
- Department of PediatricsDivision of Neonatal-Perinatal MedicineMedical University of South CarolinaShawn Jenkins Children's Hospital, 10 McClennan Banks Drive, MSC 915, Charleston, SC 29425, USA
| | - Melinda A. Engevik
- Department of Regenerative Medicine and Cell BiologyMedical University of South Carolina, Charleston, USA
- Department of Microbiology and ImmunologyMedical University of South Carolina, Charleston, USA
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Dombrowska-Pali A, Wiktorczyk-Kapischke N, Chrustek A, Olszewska-Słonina D, Gospodarek-Komkowska E, Socha MW. Human Milk Microbiome-A Review of Scientific Reports. Nutrients 2024; 16:1420. [PMID: 38794658 PMCID: PMC11124344 DOI: 10.3390/nu16101420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/01/2024] [Accepted: 05/06/2024] [Indexed: 05/26/2024] Open
Abstract
One of the most important bioactive components of breast milk are free breast milk oligosaccharides, which are a source of energy for commensal intestinal microorganisms, stimulating the growth of Bifidobacterium, Lactobacillus, and Bacteroides in a child's digestive tract. There is some evidence that maternal, perinatal, and environmental-cultural factors influence the modulation of the breast milk microbiome. This review summarizes research that has examined the composition of the breast milk microbiome and the factors that may influence it. The manuscript highlights the potential importance of the breast milk microbiome for the future development and health of children. The origin of bacteria in breast milk is thought to include the mother's digestive tract (entero-mammary tract), bacterial exposure to the breast during breastfeeding, and the retrograde flow of breast milk from the infant's mouth to the woman's milk ducts. Unfortunately, despite increasingly more precise methods for assessing microorganisms in human milk, the topic of the human milk microbiome is still quite limited and requires scientific research that takes into account various conditions.
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Affiliation(s)
- Agnieszka Dombrowska-Pali
- Department of Perinatology, Gynecology and Gynecologic Oncology, Faculty of Health Sciences, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Łukasiewicza 1, 85-821 Bydgoszcz, Poland;
| | - Natalia Wiktorczyk-Kapischke
- Department of Microbiology, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, M. Curie-Skłodowskiej 9, 85-094 Bydgoszcz, Poland; (N.W.-K.); (E.G.-K.)
| | - Agnieszka Chrustek
- Department of Pathobiochemistry and Clinical Chemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, M. Curie-Skłodowskiej 9, 85-094 Bydgoszcz, Poland; (A.C.); (D.O.-S.)
| | - Dorota Olszewska-Słonina
- Department of Pathobiochemistry and Clinical Chemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, M. Curie-Skłodowskiej 9, 85-094 Bydgoszcz, Poland; (A.C.); (D.O.-S.)
| | - Eugenia Gospodarek-Komkowska
- Department of Microbiology, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, M. Curie-Skłodowskiej 9, 85-094 Bydgoszcz, Poland; (N.W.-K.); (E.G.-K.)
| | - Maciej W. Socha
- Department of Perinatology, Gynecology and Gynecologic Oncology, Faculty of Health Sciences, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Łukasiewicza 1, 85-821 Bydgoszcz, Poland;
- Department of Obstetrics and Gynecology, St. Adalberts’s Hospital in Gdańsk, Copernicus Healthcare Entity LLC, Jana Pawła II 50, 80-462 Gdańsk, Poland
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Fusco V, Chieffi D, Fanelli F, Montemurro M, Rizzello CG, Franz CMAP. The Weissella and Periweissella genera: up-to-date taxonomy, ecology, safety, biotechnological, and probiotic potential. Front Microbiol 2023; 14:1289937. [PMID: 38169702 PMCID: PMC10758620 DOI: 10.3389/fmicb.2023.1289937] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 11/14/2023] [Indexed: 01/05/2024] Open
Abstract
Bacteria belonging to the genera Weissella and Periweissella are lactic acid bacteria, which emerged in the last decades for their probiotic and biotechnological potential. In 2015, an article reviewing the scientific literature till that date on the taxonomy, ecology, and biotechnological potential of the Weissella genus was published. Since then, the number of studies on this genus has increased enormously, several novel species have been discovered, the taxonomy of the genus underwent changes and new insights into the safety, and biotechnological and probiotic potential of weissellas and periweissellas could be gained. Here, we provide an updated overview (from 2015 until today) of the taxonomy, ecology, safety, biotechnological, and probiotic potential of these lactic acid bacteria.
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Affiliation(s)
- Vincenzina Fusco
- National Research Council, Institute of Sciences of Food Production (CNR-ISPA), Bari, Italy
| | - Daniele Chieffi
- National Research Council, Institute of Sciences of Food Production (CNR-ISPA), Bari, Italy
| | - Francesca Fanelli
- National Research Council, Institute of Sciences of Food Production (CNR-ISPA), Bari, Italy
| | - Marco Montemurro
- National Research Council, Institute of Sciences of Food Production (CNR-ISPA), Bari, Italy
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ElHadedy DE, Kim C, Yousuf AB, Wang Z, Ndegwa EN. Understanding Age-Related Longitudinal Dynamics in Abundance and Diversity of Dominant Culturable Gut Lactic Acid Bacteria in Pastured Goats. Animals (Basel) 2023; 13:2669. [PMID: 37627460 PMCID: PMC10451344 DOI: 10.3390/ani13162669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 08/01/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023] Open
Abstract
Understanding gut lactic acid bacteria (LAB) in healthy hosts is an important first step in selecting potential probiotic species. To understand the dynamics of LAB in healthy goats, a cohort of thirty-seven healthy new-born goat kids was studied over a ten-month period. Total LAB was quantified using SYBR green qPCR. Seven hundred LAB isolates were characterized using microscopy, M13 RAPD genotyping and 16S rDNA sequencing. The highest and lowest LAB counts were detected at one week and ten months of age, respectively. Diverse LAB species were detected, whose identity and prevalence varied with age. The main isolates belonged to Limosilactobacillus reuteri, Limosilactibacillus fermentum, Lactobacillus johnsonni, Ligilactobacillus murinus, Ligilactobacillus salivarius, Limosilactobacillus mucosae, Lactiplantibacillus plantarum, Ligilactobacillus agilis, Lactobacillus acidophilus/amyolovolus, Pediococcus spp. and Enterococcus spp. Uniquely, L. reuteri and Pediococcus spp. were most common in pre- and peri-weaned goats, while Lactobacillus mucosae and Enterococcus spp. were predominant in goats one month and older. Based on RAPD genotyping, L. reuteri had the highest genotypic diversity, with age being a factor on the genotypes detected. This data may be relevant in the selection of age-specific probiotics for goats. The findings may also have broader implications by highlighting age as a factor for consideration in probiotic bacteria selection in other animal hosts.
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Affiliation(s)
- Doaa E. ElHadedy
- Agricultural Research Station, Virginia State University, Petersburg, VA 23806, USA; (D.E.E.); (C.K.); (A.B.Y.); (Z.W.)
- National Centre for Radiation Research and Technology NCRRT, Radiation Microbiology Department, Egyptian Atomic Energy Authority (EAEA), Cairo 11787, Egypt
| | - Chyer Kim
- Agricultural Research Station, Virginia State University, Petersburg, VA 23806, USA; (D.E.E.); (C.K.); (A.B.Y.); (Z.W.)
| | - Adnan B. Yousuf
- Agricultural Research Station, Virginia State University, Petersburg, VA 23806, USA; (D.E.E.); (C.K.); (A.B.Y.); (Z.W.)
| | - Zhenping Wang
- Agricultural Research Station, Virginia State University, Petersburg, VA 23806, USA; (D.E.E.); (C.K.); (A.B.Y.); (Z.W.)
| | - Eunice N. Ndegwa
- Agricultural Research Station, Virginia State University, Petersburg, VA 23806, USA; (D.E.E.); (C.K.); (A.B.Y.); (Z.W.)
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Zhao Y, Song Q, Song Y. The role of insect intestinal microbes in controlling of Empoasca onukii Matsuda (Hemiptera: Cicadellidae) pest infestations in the production of tea garden: a review. Arch Microbiol 2023; 205:267. [PMID: 37351731 DOI: 10.1007/s00203-023-03609-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 05/27/2023] [Accepted: 06/10/2023] [Indexed: 06/24/2023]
Abstract
Pests like the phytophagous bug Empoasca onukii Matsuda frequently harm tea plants. The harm this insect does to agricultural and environmentally sensitive places is extremely harmful since physical and chemical prevention and control are still the primary methods of handling it. Therefore, it is important to develop pest management strategies. Recent research has demonstrated that pathogenic fungus and the gut microbiota interact to induce host and death, and that the gut microbiota, which has a dramatic effect on the host, can engage in pest control. The advancement of genome editing technologies is also new to the field of pest management. The diversity, function, and research methodologies of insect gut microbiota are summarized in this work, and discusses E. onukii Matsuda control options as well as the importance of insect gut microbiome in pest management. In comparison to traditional pesticides and physical prevention and control, the interaction between pathogenic fungi represented by Beauveria bassiana and intestinal microorganisms, as well as their participation in pest management, causes physiological stress on the host, which meets the new requirements of modern agricultural green development and has a protective effect on habitat fragmentation areas (Karst region). Exploring additional harmful fungus for pest management and fully using the specific traits of insect gut microbiota to achieve "killing insects with bacteria" would be a promising technique from this standpoint.
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Affiliation(s)
- Yuanqi Zhao
- School of Karst Science, Guizhou Normal University, Guiyang, 550001, China
- State Engineering Technology Institute for Karst Desertification Control, Guiyang, 550001, China
| | - Qingfa Song
- School of Karst Science, Guizhou Normal University, Guiyang, 550001, China
- State Engineering Technology Institute for Karst Desertification Control, Guiyang, 550001, China
| | - Yuehua Song
- School of Karst Science, Guizhou Normal University, Guiyang, 550001, China.
- State Engineering Technology Institute for Karst Desertification Control, Guiyang, 550001, China.
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Saeed A, Ali H, Yasmin A, Baig M, Ullah A, Kazmi A, Ahmed MA, Albadrani GM, El-Demerdash FM, Bibi M, Abdel-Daim MM, Ali I, Hussain S. Unveiling the Antibiotic Susceptibility and Antimicrobial Potential of Bacteria from Human Breast Milk of Pakistani Women: An Exploratory Study. BIOMED RESEARCH INTERNATIONAL 2023; 2023:6399699. [PMID: 37377461 PMCID: PMC10292949 DOI: 10.1155/2023/6399699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 03/11/2023] [Accepted: 03/14/2023] [Indexed: 06/29/2023]
Abstract
Background Human life quality and expectancy have increased dramatically over the past 5 decades because of improvements in nutrition and antibiotic's usage fighting against infectious diseases. Yet, it was soon revealed that the microbes adapted to develop resistance to any of the drugs that were used. Recently, there is great concern that commensal bacteria from food and the gastrointestinal tract of humans and animals could act as a reservoir for antibiotic resistance genes. Methodology. This study was intended for evaluating the phenotypic antibiotic resistance/sensitivity profiles of probiotic bacteria from human breast milk and evaluating the inhibitory effect of the probiotic bacteria against both Gram-negative and Gram-positive bacteria. Results The results point out that some of the isolated bacteria were resistant to diverse antibiotics including gentamycin, imipenem, trimethoprim sulfamethoxazole, and nalidixic acid. Susceptibility profile to certain antibiotics like vancomycin, tetracycline, ofloxacin, chloramphenicol, streptomycin, rifampicin, and bacitracin was also observed. The antimicrobial qualities of cell-free supernatants of some probiotic bacteria inhibited the growth of indicator bacteria. Also, antimicrobial properties of the probiotic bacteria from the present study attributed to the production of organic acid, bacterial adhesion to hydrocarbons (BATH), salt aggregation, coaggregation with pathogens, and bacteriocin production. Some isolated bacteria from human milk displayed higher hydrophobicity in addition to intrinsic probiotic properties like Gram-positive classification, catalase-negative activity, resistance to gastric juice (pH 2), and bile salt (0.3%) concentration. Conclusion This study has added to the data of the antibiotic and antimicrobial activity of some probiotic bacteria from some samples of Pakistani women breast milk. Probiotic bacteria are usually considered to decrease gastrointestinal tract diseases by adhering to the gut epithelial and reducing population of pathogens and in the case of Streptococcus lactarius MB622 and Streptococcus salivarius MB620 in terms of hydrophobicity and exclusion of indicator pathogenic strains.
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Affiliation(s)
- Ayesha Saeed
- Microbiology and Biotechnology Research Lab, Fatima Jinnah Women University, Rawalpindi, Pakistan
| | - Hina Ali
- Quaid-e-Azam Medical College, Bahawalpur, Punjab, Pakistan
| | - Azra Yasmin
- Microbiology and Biotechnology Research Lab, Fatima Jinnah Women University, Rawalpindi, Pakistan
| | - Mehreen Baig
- Surgical Unit II, Foundation University, Islamabad, Pakistan
| | - Abd Ullah
- Xinjiang Key Laboratory of Desert Plant Root Ecology and Vegetation Restoration, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Cele, China
| | - Abeer Kazmi
- Institute of Hydrobiology, Chinese Academy of Sciences, University of Chinese Academy of Sciences (UCAS), Wuhan, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | | | - Ghadeer M. Albadrani
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, 84428, Riyadh 11671, Saudi Arabia
| | - Fatma M. El-Demerdash
- Department of Environmental Studies, Institute of Graduate Studies and Research, Alexandria University, Alexandria, Egypt
| | - Monaza Bibi
- Microbiology and Biotechnology Research Lab, Fatima Jinnah Women University, Rawalpindi, Pakistan
| | - Mohamed M. Abdel-Daim
- Department of Pharmaceutical Sciences, Pharmacy Program, Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia
- Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Iftikhar Ali
- Centre for Plant Sciences and Biodiversity, University of Swat, Charbagh 19120, Pakistan
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Sadam Hussain
- University of Health Sciences, Lahore, Punjab, Pakistan
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Melekoglu E, Yılmaz B, Çevik A, Gökyıldız Sürücü Ş, Avcıbay Vurgeç B, Gözüyeşil E, Sharma H, Boyan N, Ozogul F. The Impact of the Human Milk Microbiota in the Prevention of Disease and Infant Health. Breastfeed Med 2023. [PMID: 37140562 DOI: 10.1089/bfm.2022.0292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Background: Human milk is recognized as an ideal food for newborns and infants owing to the presence of various nutritive factors, including healthy bacteria. Aim/Objective: This review aimed to understand the effects of human milk microbiota in both the prevention of disease and the health of infants. Methods: Data were obtained from PubMed, Scopus, Web of Science, clinical trial registries, Dergipark, and Türk Atıf Dizini up to February 2023 without language restrictions. Results: It is considered that the first human milk microbiota ingested by the newborn creates the initial microbiome of the gut system, which in turn influences the development and maturation of immunity. Bacteria present in human milk modulate the anti-inflammatory response by releasing certain cytokines, protecting the newborn against certain infections. Therefore, certain bacterial strains isolated from human milk could serve as potential probiotics for various therapeutic applications. Conclusions: In this review, the origin and significance of human milk bacteria have been highlighted along with certain factors influencing the composition of human milk microbiota. In addition, it also summarizes the health benefits of human milk as a protective agent against certain diseases and ailments.
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Affiliation(s)
- Ebru Melekoglu
- Department of Nutrition and Dietetics, Cukurova University, Adana, Turkey
| | - Birsen Yılmaz
- Department of Nutrition and Dietetics, Cukurova University, Adana, Turkey
| | - Ayseren Çevik
- Department of Midwifery, Cukurova University, Adana, Turkey
| | | | | | - Ebru Gözüyeşil
- Department of Midwifery, Cukurova University, Adana, Turkey
| | - Heena Sharma
- Food Technology Lab, Dairy Technology Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Neslihan Boyan
- Department of Anatomy, Faculty of Medicine, Cukurova University, Adana, Turkey
| | - Fatih Ozogul
- Department of Seafood Processing Technology, Faculty of Fisheries, Cukurova University, Adana, Turkey
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Alves RDV, de Oliveira MIC, Domingues RMSM, Pereira APE, Leal MDC. Breastfeeding in the first hour of life in Brazilian private hospitals participating in a quality-of-care improvement project. Reprod Health 2023; 20:10. [PMID: 36609292 PMCID: PMC9817241 DOI: 10.1186/s12978-022-01538-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/25/2022] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND The Baby-Friendly Hospital Initiative's Step 4 recommends: "support mothers to start breastfeeding as soon as possible after birth", thus contributing to the reduction of neonatal mortality. The objective of this study is to estimate the prevalence of breastfeeding in the first hour of life in private maternity hospitals participating in the "Adequate Childbirth Project", a quality-of-care improvement project, and to analyze determinants of this outcome. METHODS Secondary analysis of data collected by the cross-sectional evaluative "Healthy Birth Study", conducted in 2017 in 12 maternity hospitals participating in the Adequate Childbirth Project, where 4800 mothers were interviewed, and hospital records were observed. Conditions that prevented breastfeeding at birth, such as maternal HIV-infection and newborns' severe malformations, were excluded. Multiple logistic regression was performed according to a hierarchical theoretical model. RESULTS The prevalence of breastfeeding in the first hour of life was 58% (CI 95% 56.6-59.5%). Lower maternal education (aOR 0.643; CI 95% 0.528-0.782), lower economic status (aOR 0.687; CI 95% 0.504-0.935), cesarean section delivery (ORa 0.649; CI 95% 0.529-0.797), preterm birth (aOR 0.660; CI 95% 0.460-0.948) and non-rooming-in at birth (aOR 0.669; CI 95% 0.559-0.800) were negatively associated with the outcome. Receiving information during prenatal care about the importance of breastfeeding at birth (aOR 2.585; CI 95% 2.102-3.179), being target of the quality-of-care improvement project (aOR 1.273; CI 95% 1.065-1.522), skin-to-skin contact at birth (aOR 2.127; CI 95% 1.791-2.525) and female newborn (aOR 1.194; CI 95% 1.008-1.415) were factors positively associated with the outcome. CONCLUSIONS The private maternities participating in the Healthy Birth Study showed a good prevalence of breastfeeding in the first hour of life, according to WHO parameters. Prenatal guidance on breastfeeding at birth, being target of the quality-of-care improvement project and skin-to-skin contact at birth contributed to breastfeeding in the first hour of life.
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Affiliation(s)
- Rachael de Vasconcelos Alves
- grid.411173.10000 0001 2184 6919Postgraduate Program in Public Health, Universidade Federal Fluminense, Rua Marquês de Paraná, no 303, Anexo, 4° Andar, Centro, Niterói, Rio de Janeiro, CEP: 24033-900 Brazil
| | - Maria Inês Couto de Oliveira
- grid.411173.10000 0001 2184 6919Department of Epidemiology and Biostatistics, Collective Health Institute, Universidade Federal Fluminense, Rua Marquês de Paraná, no 303, anexo, 3° Andar, Centro, Niterói, Rio de Janeiro, CEP: 24033-900 Brazil
| | - Rosa Maria Soares Madeira Domingues
- grid.418068.30000 0001 0723 0931National Institute of Infectious Diseases Evandro Chagas, Fundação Oswaldo Cruz, Av. Brasil no 4365, Manguinhos, Rio de Janeiro, Rio de Janeiro CEP: 21040-360 Brazil
| | - Ana Paula Esteves Pereira
- grid.418068.30000 0001 0723 0931National School of Public Health, Fundação Oswaldo Cruz, Rua Leopoldo Bulhões no 4480, Sala 814. Manguinhos, Rio de Janeiro, Rio de Janeiro CEP: 21041-210 Brazil
| | - Maria do Carmo Leal
- grid.418068.30000 0001 0723 0931National School of Public Health, Fundação Oswaldo Cruz, Rua Leopoldo Bulhões no 4480, Sala 809. Manguinhos, Rio de Janeiro, Rio de Janeiro CEP: 21041-210 Brazil
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10
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Ding M, Chen H, Yu R, Ross RP, Stanton C, Zhang H, Yang B, Chen W. Shared and Non-Shared sIgA-Coated and -Uncoated Bacteria in Intestine of Mother–Infant Pairs. Int J Mol Sci 2022; 23:ijms23179873. [PMID: 36077271 PMCID: PMC9456154 DOI: 10.3390/ijms23179873] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/19/2022] [Accepted: 08/26/2022] [Indexed: 11/23/2022] Open
Abstract
The infant gut microbiota is critical for promoting and maintaining early-life health. The study aimed to analyze the composition of sIgA-coated and sIgA-uncoated bacterial communities at genus level and lactobacilli and bifidobacterial communities at species level in human breast milk (HBM) and infant and maternal feces. Eleven pregnant women were recruited successfully. HBM; infant feces during colostrum, transition, and mature stages; and maternal feces within the mature stage were collected. sIgA-coated and sIgA-uncoated bacteria were separated with magnetic-activated cell sorting. Then, 16S rRNA sequencing, bifidobacterial groEL gene sequencing, and lactobacilli groEL gene sequencing were performed to analyze the bacterial community. PCoA revealed that the compositions of sIgA-coated and sIgA-uncoated bacteria were different among HBM and infant and maternal feces. Higher relative abundance of sIgA-uncoated Bifidobacterium was found in the three lactation stages in infant feces compared to the corresponding HBM, and a higher relative abundance of sIgA-uncoated Faecalibacterium was found in maternal feces compared to HBM and infant feces. For bifidobacterial community, sIgA-coated and sIgA-uncoated B. longum subsp. infantis and B. pseudocatenulatum was dominant in infant feces and maternal feces, respectively. The relative abundance of sIgA-uncoated B. longum subsp. infantis was significantly higher in infant feces compared to that in maternal feces. For the Lactobacillus community, L. paragasseri and L. mucosae were dominant in infant and maternal feces, respectively. HBM and infant and maternal feces showed distinct diversity and composition of both sIgA-coated and sIgA-uncoated bacteria at genus level. Infant and maternal feces showed similar composition of Bifidobacterium at species level. The same Bifidobacterium species could be detected both in sIgA-coated and -uncoated form. This article provided deeper understanding on the microbiota profile in HBM and infant and maternal feces.
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Affiliation(s)
- Mengfan Ding
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Haiqin Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Renqiang Yu
- Department of Neonatology, The Affiliated Wuxi Maternity and Child Health Care Hospital of Nanjing Medical University, Wuxi 214122, China
- Correspondence: (R.Y.); (B.Y.)
| | - Reynolds Paul Ross
- International Joint Research Center for Probiotics & Gut Health, Jiangnan University, Wuxi 214122, China
- APC Microbiome Ireland, University College Cork, T12 K8AF Cork, Ireland
| | - Catherine Stanton
- International Joint Research Center for Probiotics & Gut Health, Jiangnan University, Wuxi 214122, China
- APC Microbiome Ireland, University College Cork, T12 K8AF Cork, Ireland
- Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Co Cork, Ireland
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- 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
| | - Bo Yang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- International Joint Research Center for Probiotics & Gut Health, Jiangnan University, Wuxi 214122, China
- Correspondence: (R.Y.); (B.Y.)
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Wuxi Translational Medicine Research Center and Jiangsu Translational Medicine Research Institute Wuxi Branch, Wuxi 214122, China
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11
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Atfaoui Khadija, Omar B, Abdessamad E, Rachid I, Imane O, Hicham H, Mohammed O. Phenotypic and Genotypic Identification of the Most Acidifiers LAB Strains Isolated from Fermented Food. BIOL BULL+ 2022. [DOI: 10.1134/s1062359022040045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Fanelli F, Montemurro M, Chieffi D, Cho GS, Franz CMAP, Dell'Aquila A, Rizzello CG, Fusco V. Novel Insights Into the Phylogeny and Biotechnological Potential of Weissella Species. Front Microbiol 2022; 13:914036. [PMID: 35814678 PMCID: PMC9257631 DOI: 10.3389/fmicb.2022.914036] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 05/19/2022] [Indexed: 11/29/2022] Open
Abstract
In this study, the genomes of the Weissella (W.) beninensis, W. diestrammenae, W. fabalis, W. fabaria, W. ghanensis, and W. uvarum type strains were sequenced and analyzed. Moreover, the ability of these strains to metabolize 95 carbohydrates was investigated, and the genetic determinants of such capability were searched within the sequenced genomes. 16S rRNA gene and genome-based-phylogeny of all the Weissella species described to date allowed a reassessment of the Weissella genus species groups. As a result, six distinct species groups within the genus, namely, W. beninensis, W. kandleri, W. confusa, W. halotolerans, W. oryzae, and W. paramesenteroides species groups, could be described. Phenotypic analyses provided further knowledge about the ability of the W. beninensis, W. ghanensis, W. fabaria, W. fabalis, W. uvarum, and W. diestrammenae type strains to metabolize certain carbohydrates and confirmed the interspecific diversity of the analyzed strains. Moreover, in many cases, the carbohydrate metabolism pathway and phylogenomic species group clustering overlapped. The novel insights provided in our study significantly improved the knowledge about the Weissella genus and allowed us to identify features that define the role of the analyzed type strains in fermentative processes and their biotechnological potential.
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Affiliation(s)
- Francesca Fanelli
- National Research Council, Institute of Sciences of Food Production (CNR-ISPA), Bari, Italy
| | - Marco Montemurro
- Department of Soil, Plant and Food Science, University of Bari Aldo Moro, Bari, Italy
| | - Daniele Chieffi
- National Research Council, Institute of Sciences of Food Production (CNR-ISPA), Bari, Italy
| | - Gyu-Sung Cho
- Department of Microbiology and Biotechnology, Max Rubner-Institut, Kiel, Germany
| | | | - Anna Dell'Aquila
- National Research Council, Institute of Sciences of Food Production (CNR-ISPA), Bari, Italy
| | | | - Vincenzina Fusco
- National Research Council, Institute of Sciences of Food Production (CNR-ISPA), Bari, Italy
- *Correspondence: Vincenzina Fusco
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13
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Bazalová O, Cihlář JZ, Dlouhá Z, Bár L, Dráb V, Kavková M. Rapid sourdough yeast identification using panfungal PCR combined with high resolution melting analysis. METHODS IN MICROBIOLOGY 2022; 199:106522. [PMID: 35716843 DOI: 10.1016/j.mimet.2022.106522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 06/10/2022] [Accepted: 06/10/2022] [Indexed: 10/18/2022]
Abstract
The microbial composition of the sourdough starter affects the sourdough bread properties. Therefore, it is crucial to find a tool for rapid, time-saving, and economical identification of the sourdough microbiota. We focused on the rapid identification of sourdough yeasts. We designed a panfungal real time-PCR targeting the ITS2 region (ITS-amplicon) and a fragment of D1/D2 region of 26S rRNA gene (U-amplicon) and used high resolution melting analysis (HRM) for subsequent species identification. The sensitivity and specificity of our method were tested on the reference yeast cultures. We obtained divergent melting peaks (Tm). The further analysis of melt curves suggests the possibility to discriminate yeasts on the genus- and some on species-specific level in the mixed sample. The applicability of this method in routine practice was evaluated on nine sourdough samples. Revealed melt curves of U-amplicons were predominantly characteristic of the sourdough. The evaluation of the Tm and the shape of the melt curve was used to assess the sourdough yeasts. Additionally, using the HRM-PCR method the contamination with the ergot fungus DNA was revealed. Our data showed HRM-PCR is a simple, rapid, and inexpensive tool useful in identifying sourdough yeasts.
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Affiliation(s)
- Olga Bazalová
- Dairy Research Institute, Ltd., Department Tábor, Ke Dvoru 12a, 160 00 Praha, Vokovice, Czech Republic.
| | - Jaromír Z Cihlář
- Dairy Research Institute, Ltd., Department Tábor, Ke Dvoru 12a, 160 00 Praha, Vokovice, Czech Republic; Milcom, a.s., Collection of Dairy Microorganisms - Laktoflora, Ke Dvoru 12a, 160 00 Praha, Vokovice, Czech Republic
| | - Zuzana Dlouhá
- Milcom, a.s., Collection of Dairy Microorganisms - Laktoflora, Ke Dvoru 12a, 160 00 Praha, Vokovice, Czech Republic
| | - Ladislav Bár
- Dairy Research Institute, Ltd., Department Tábor, Ke Dvoru 12a, 160 00 Praha, Vokovice, Czech Republic; Milcom, a.s., Collection of Dairy Microorganisms - Laktoflora, Ke Dvoru 12a, 160 00 Praha, Vokovice, Czech Republic
| | - Vladimír Dráb
- Dairy Research Institute, Ltd., Department Tábor, Ke Dvoru 12a, 160 00 Praha, Vokovice, Czech Republic; Milcom, a.s., Collection of Dairy Microorganisms - Laktoflora, Ke Dvoru 12a, 160 00 Praha, Vokovice, Czech Republic
| | - Miloslava Kavková
- Dairy Research Institute, Ltd., Department Tábor, Ke Dvoru 12a, 160 00 Praha, Vokovice, Czech Republic; Milcom, a.s., Collection of Dairy Microorganisms - Laktoflora, Ke Dvoru 12a, 160 00 Praha, Vokovice, Czech Republic
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14
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Selma-Royo M, Calvo-Lerma J, Bäuerl C, Esteban-Torres M, Cabrera-Rubio R, Collado MC. Human milk microbiota: what did we learn in the last 20 years? MICROBIOME RESEARCH REPORTS 2022; 1:19. [PMID: 38046359 PMCID: PMC10688795 DOI: 10.20517/mrr.2022.05] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 04/06/2022] [Accepted: 04/29/2022] [Indexed: 12/05/2023]
Abstract
Human milk (HM) is the gold standard for infant nutrition during the first months of life. Beyond its nutritional components, its complex bioactive composition includes microorganisms, their metabolites, and oligosaccharides, which also contribute to gut colonization and immune system maturation. There is growing evidence of the beneficial effects of bacteria present in HM. However, current research presents limited data on the presence and functions of other organisms. The potential biological impacts on maternal and infant health outcomes, the factors contributing to milk microbes' variations, and the potential functions in the infant's gut remain unclear. This review provides a global overview of milk microbiota, what the actual knowledge is, and what the gaps and challenges are for the next years.
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Affiliation(s)
| | | | | | | | | | - Maria Carmen Collado
- Department of Biotechnology, Institute of Agrochemistry and Food Technology, Spanish National Research Council (IATA-CSIC), Valencia 46980, Spain
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15
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Engevik MA, Stripe LK, Baatz JE, Wagner CL, Chetta KE. Identifying single-strain growth patterns of human gut microbes in response to preterm human milk and formula. Food Funct 2022; 13:5571-5589. [PMID: 35481924 DOI: 10.1039/d2fo00447j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The intestinal microbiota of the preterm neonate has become a major research focus, with evidence emerging that the microbiota influences both short and long-term health outcomes, in the neonatal intensive care unit and beyond. Similar to the term microbiome, the preterm gut microbiome is highly influenced by diet, specifically formula and human milk use. This study aims to analyze next-generation products including preterm formula, human milk-oligosaccharide term formula, and preterm breastmilk. We used a culture-based model to differentially compare the growth patterns of individual bacterial strains found in the human intestine. This model probed 24 strains of commensal bacteria and 8 pathobiont species which have previously been found to cause sepsis in preterm neonates. Remarkable differences between strain growth and culture pH were noted after comparing models of formulas and between human milk and formula. Both formula and human milk supported the growth of commensal bacteria; however, the formula products, but not human milk, supported the growth of several specific pathogenic strains. Computational analysis revealed potential connections between long-chain fatty acid and iron uptake from formula in pathobiont organisms. These findings indicate that there is a unique profile of growth in response to human milk and formula and shed light into how the infant gut microbiota could be influenced.
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Affiliation(s)
- Melinda A Engevik
- Department of Regenerative Medicine & Cell Biology, Medical University of South Carolina, USA.,Department of Microbiology & Immunology, Medical University of South Carolina, USA
| | - Leah K Stripe
- Department of Regenerative Medicine & Cell Biology, Medical University of South Carolina, USA
| | - John E Baatz
- Department of Pediatrics, C.P. Darby Children's Research Institute, Medical University of South Carolina, USA. .,Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Medical University of South Carolina, Shawn Jenkins Children's Hospital, 10 McClennan Banks Drive, MSC 915, Charleston, SC 29425, USA
| | - Carol L Wagner
- Department of Pediatrics, C.P. Darby Children's Research Institute, Medical University of South Carolina, USA. .,Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Medical University of South Carolina, Shawn Jenkins Children's Hospital, 10 McClennan Banks Drive, MSC 915, Charleston, SC 29425, USA
| | - Katherine E Chetta
- Department of Pediatrics, C.P. Darby Children's Research Institute, Medical University of South Carolina, USA. .,Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Medical University of South Carolina, Shawn Jenkins Children's Hospital, 10 McClennan Banks Drive, MSC 915, Charleston, SC 29425, USA
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16
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Chen CY, Rao SS, Yue T, Tan YJ, Yin H, Chen LJ, Luo MJ, Wang Z, Wang YY, Hong CG, Qian YX, He ZH, Liu JH, Yang F, Huang FY, Tang SY, Xie H. Glucocorticoid-induced loss of beneficial gut bacterial extracellular vesicles is associated with the pathogenesis of osteonecrosis. SCIENCE ADVANCES 2022; 8:eabg8335. [PMID: 35417243 PMCID: PMC9007505 DOI: 10.1126/sciadv.abg8335] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 02/24/2022] [Indexed: 06/14/2023]
Abstract
Osteonecrosis of the femoral head (ONFH) commonly occurs after glucocorticoid (GC) therapy. The gut microbiota (GM) participates in regulating host health, and its composition can be altered by GC. Here, this study demonstrates that cohousing with healthy mice or colonization with GM from normal mice attenuates GC-induced ONFH. 16S rRNA gene sequencing shows that cohousing with healthy mice rescues the GC-induced reduction of gut Lactobacillus animalis. Oral supplementation of L. animalis mitigates GC-induced ONFH by increasing angiogenesis, augmenting osteogenesis, and reducing cell apoptosis. Extracellular vesicles from L. animalis (L. animalis-EVs) contain abundant functional proteins and can enter the femoral head to exert proangiogenic, pro-osteogenic, and antiapoptotic effects, while its abundance is reduced after exposure to GC. Our study suggests that the GM is involved in protecting the femoral head by transferring bacterial EVs, and that loss of L. animalis and its EVs is associated with the development of GC-induced ONFH.
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Affiliation(s)
- Chun-Yuan Chen
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Shan-Shan Rao
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Xiangya School of Nursing, Central South University, Changsha, Hunan 410013, China
| | - Tao Yue
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Yi-Juan Tan
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Hao Yin
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Ling-Jiao Chen
- Department of Pathology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510220, China
| | - Ming-Jie Luo
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Xiangya School of Nursing, Central South University, Changsha, Hunan 410013, China
| | - Zun Wang
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Xiangya School of Nursing, Central South University, Changsha, Hunan 410013, China
| | - Yi-Yi Wang
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Chun-Gu Hong
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Yu-Xuan Qian
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Ze-Hui He
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Jiang-Hua Liu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Fei Yang
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan 410078, China
| | - Fei-Yu Huang
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan 410078, China
| | - Si-Yuan Tang
- Xiangya School of Nursing, Central South University, Changsha, Hunan 410013, China
| | - Hui Xie
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Hunan Key Laboratory of Organ Injury, Aging and Regenerative Medicine, Changsha, Hunan 410008, China
- Hunan Key Laboratory of Bone Joint Degeneration and Injury, Changsha, Hunan 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
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17
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Antimicrobial Resistance, Pathogenic, and Molecular Characterization of Escherichia coli from Diarrheal Patients in South Korea. Pathogens 2022; 11:pathogens11040385. [PMID: 35456060 PMCID: PMC9030120 DOI: 10.3390/pathogens11040385] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/18/2022] [Accepted: 03/21/2022] [Indexed: 11/17/2022] Open
Abstract
Diarrheal diseases due to foodborne Escherichia coli are the leading cause of illness in humans. Here, we performed pathogenic typing, molecular typing, and antimicrobial susceptibility tests on seventy-five isolates of E. coli isolated from stool samples of patients suffering from foodborne diseases in Busan, South Korea. All the isolates were identified as E. coli by both biochemical analysis (API 20E system) and matrix-assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF MS). The bacteria displayed entero-pathogenic E. coli (EPEC) (47.0%), entero-aggregative E. coli (EAEC) (33.3%), entero-toxigenic E. coli (ETEC) (6.6%), ETEC and EPEC (6.6%), EPEC and EAEC (4%), and ETEC and EAEC (2.7%) characteristics. The E. coli isolates were highly resistant to nalidixic acid (44.0%), tetracycline (41.3%), ampicillin (40%), ticarcillin (38.7%), and trimethoprim/sulfamethoxazole (34.7%); however, they were highly susceptible to imipenem (98.6%), cefotetan (98.6%), cefepime (94.6%), and chloramphenicol (94.6%). Although 52 strains (69.3%) showed resistance against at least 1 of the 16 antibiotics tested, 23 strains (30.7%) were susceptible to all the antibiotics. Nine different serotypes (O166, O8, O20, O25, O119, O159, O28ac, O127a, and O18), five genotypes (I to V, random-amplified polymorphic DNA), and four phenotypes (A to D, MALDI-TOF MS) were identified, showing the high level of heterogeneity between the E. coli isolates recovered from diarrheal patients in South Korea.
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Molecular Typing, Antibiotic Resistance and Enterotoxin Gene Profiles of Staphylococcus aureus Isolated from Humans in South Korea. Microorganisms 2022; 10:microorganisms10030642. [PMID: 35336216 PMCID: PMC8952563 DOI: 10.3390/microorganisms10030642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 03/12/2022] [Accepted: 03/15/2022] [Indexed: 11/17/2022] Open
Abstract
The emergence of antimicrobial-resistant Staphylococcus aureus has become a grave concern worldwide. In this study, 95 strains of S. aureus isolated from stool samples were collected from Busan, South Korea to characterize their antimicrobial susceptibility, enterotoxin genes, and molecular typing using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and random amplification of polymorphic DNA (RAPD) assay. Only two strains showed no drug resistance, whereas resistance to three or more antibiotics was observed in 87.4% of strains. Ampicillin resistance was the most common at 90% and all strains were susceptible to vancomycin. The distribution of enterotoxin genes encoded in isolates was sea (32.6%), sec (11.6%), seg (19%), sea & sec (2.1%), and sec & seg (34.7%). Molecular typing using both MALDI-TOF MS and RAPD indicated that S. aureus exhibited diverse clonal lineages and no correlations were observed among the profiling of enterotoxin, MALDI-TOF MS, and RAPD. This investigation provides useful information on foodborne pathogenic S. aureus that has a significant public health impact in South Korea.
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Moya-Gonzálvez EM, Rubio-Del-Campo A, Rodríguez-Díaz J, Yebra MJ. Infant-gut associated Bifidobacterium dentium strains utilize the galactose moiety and release lacto-N-triose from the human milk oligosaccharides lacto-N-tetraose and lacto-N-neotetraose. Sci Rep 2021; 11:23328. [PMID: 34857830 PMCID: PMC8639736 DOI: 10.1038/s41598-021-02741-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 11/18/2021] [Indexed: 12/11/2022] Open
Abstract
Much evidence suggests a role for human milk oligosaccharides (HMOs) in establishing the infant microbiota in the large intestine, but the response of particular bacteria to individual HMOs is not well known. Here twelve bacterial strains belonging to the genera Bifidobacterium, Enterococcus, Limosilactobacillus, Lactobacillus, Lacticaseibacillus, Staphylococcus and Streptococcus were isolated from infant faeces and their growth was analyzed in the presence of the major HMOs, 2′-fucosyllactose (2′FL), 3-fucosyllactose (3FL), 2′,3-difucosyllactose (DFL), lacto-N-tetraose (LNT) and lacto-N-neo-tetraose (LNnT), present in human milk. Only the isolated Bifidobacterium strains demonstrated the capability to utilize these HMOs as carbon sources. Bifidobacterium infantis Y538 efficiently consumed all tested HMOs. Contrarily, Bifidobacterium dentium strains Y510 and Y521 just metabolized LNT and LNnT. Both tetra-saccharides are hydrolyzed into galactose and lacto-N-triose (LNTII) by B. dentium. Interestingly, this species consumed only the galactose moiety during growth on LNT or LNnT, and excreted the LNTII moiety. Two β-galactosidases were characterized from B. dentium Y510, Bdg42A showed the highest activity towards LNT, hydrolyzing it into galactose and LNTII, and Bdg2A towards lactose, degrading efficiently also 6′-galactopyranosyl-N-acetylglucosamine, N-acetyl-lactosamine and LNnT. The work presented here supports the hypothesis that HMOs are mainly metabolized by Bifidobacterium species in the infant gut.
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Affiliation(s)
- Eva M Moya-Gonzálvez
- Laboratorio de Bacterias Lácticas y Probióticos, Departamento de Biotecnología de Alimentos, Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas (IATA-CSIC), Valencia, Spain
| | - Antonio Rubio-Del-Campo
- Laboratorio de Bacterias Lácticas y Probióticos, Departamento de Biotecnología de Alimentos, Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas (IATA-CSIC), Valencia, Spain
| | - Jesús Rodríguez-Díaz
- Departamento de Microbiología, Facultad de Medicina, Universidad de Valencia, Valencia, Spain
| | - María J Yebra
- Laboratorio de Bacterias Lácticas y Probióticos, Departamento de Biotecnología de Alimentos, Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas (IATA-CSIC), Valencia, Spain.
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20
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Saturio S, Nogacka AM, Alvarado-Jasso GM, Salazar N, de los Reyes-Gavilán CG, Gueimonde M, Arboleya S. Role of Bifidobacteria on Infant Health. Microorganisms 2021; 9:2415. [PMID: 34946017 PMCID: PMC8708449 DOI: 10.3390/microorganisms9122415] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/19/2021] [Accepted: 11/21/2021] [Indexed: 12/19/2022] Open
Abstract
Bifidobacteria are among the predominant microorganisms during infancy, being a dominant microbial group in the healthy breastfed infant and playing a crucial role in newborns and infant development. Not only the levels of the Bifidobacterium genus but also the profile and quantity of the different bifidobacterial species have been demonstrated to be of relevance to infant health. Although no definitive proof is available on the causal association, reduced levels of bifidobacteria are perhaps the most frequently observed alteration of the intestinal microbiota in infant diseases. Moreover, Bifidobacterium strains have been extensively studied by their probiotic attributes. This review compiles the available information about bifidobacterial composition and function since the beginning of life, describing different perinatal factors affecting them, and their implications on different health alterations in infancy. In addition, this review gathers exhaustive information about pre-clinical and clinical studies with Bifidobacterium strains as probiotics in neonates.
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Affiliation(s)
- Silvia Saturio
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias (IPLA-CSIC), 33300 Villaviciosa, Spain; (S.S.); (A.M.N.); (G.M.A.-J.); (N.S.); (C.G.d.l.R.-G.)
- Diet, Human Microbiota and Health Group, Institute of Health Research of the Principality of Asturias (ISPA), 33011 Oviedo, Spain
| | - Alicja M. Nogacka
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias (IPLA-CSIC), 33300 Villaviciosa, Spain; (S.S.); (A.M.N.); (G.M.A.-J.); (N.S.); (C.G.d.l.R.-G.)
- Diet, Human Microbiota and Health Group, Institute of Health Research of the Principality of Asturias (ISPA), 33011 Oviedo, Spain
| | - Guadalupe M. Alvarado-Jasso
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias (IPLA-CSIC), 33300 Villaviciosa, Spain; (S.S.); (A.M.N.); (G.M.A.-J.); (N.S.); (C.G.d.l.R.-G.)
| | - Nuria Salazar
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias (IPLA-CSIC), 33300 Villaviciosa, Spain; (S.S.); (A.M.N.); (G.M.A.-J.); (N.S.); (C.G.d.l.R.-G.)
- Diet, Human Microbiota and Health Group, Institute of Health Research of the Principality of Asturias (ISPA), 33011 Oviedo, Spain
| | - Clara G. de los Reyes-Gavilán
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias (IPLA-CSIC), 33300 Villaviciosa, Spain; (S.S.); (A.M.N.); (G.M.A.-J.); (N.S.); (C.G.d.l.R.-G.)
- Diet, Human Microbiota and Health Group, Institute of Health Research of the Principality of Asturias (ISPA), 33011 Oviedo, Spain
| | - Miguel Gueimonde
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias (IPLA-CSIC), 33300 Villaviciosa, Spain; (S.S.); (A.M.N.); (G.M.A.-J.); (N.S.); (C.G.d.l.R.-G.)
- Diet, Human Microbiota and Health Group, Institute of Health Research of the Principality of Asturias (ISPA), 33011 Oviedo, Spain
| | - Silvia Arboleya
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias (IPLA-CSIC), 33300 Villaviciosa, Spain; (S.S.); (A.M.N.); (G.M.A.-J.); (N.S.); (C.G.d.l.R.-G.)
- Diet, Human Microbiota and Health Group, Institute of Health Research of the Principality of Asturias (ISPA), 33011 Oviedo, Spain
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21
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A rare case of Weissella confusa endocarditis. CLINICAL INFECTION IN PRACTICE 2021. [DOI: 10.1016/j.clinpr.2021.100078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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22
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Yuan S, Wang Y, Zhao F, Kang L. Complete Genome Sequence of Weissella confusa LM1 and Comparative Genomic Analysis. Front Microbiol 2021; 12:749218. [PMID: 34650545 PMCID: PMC8506157 DOI: 10.3389/fmicb.2021.749218] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 09/02/2021] [Indexed: 01/07/2023] Open
Abstract
The genus Weissella is attracting an increasing amount of attention because of its multiple functions and probiotic potential. In particular, the species Weissella confusa is known to have great potential in industrial applications and exhibits numerous biological functions. However, the knowledge on this bacterium in insects is not investigated. Here, we isolated and identified W. confusa as the dominant lactic acid bacteria in the gut of the migratory locust. We named this strain W. confusa LM1, which is the first genome of an insect-derived W. confusa strain with one complete chromosome and one complete plasmid. Among all W. confusa strains, W. confusa LM1 had the largest genome. Its genome was the closest to that of W. confusa 1001271B_151109_G12, a strain from human feces. Our results provided accurate evolutionary relationships of known Weissella species and W. confusa strains. Based on genomic analysis, the pan-genome of W. confusa is in an open state. Most strains of W. confusa had the unique genes, indicating that these strains can adapt to different ecological niches and organisms. However, the variation of strain-specific genes did represent significant correlations with their hosts and ecological niches. These strains were predicted to have low potential to produce secondary metabolites. Furthermore, no antibiotic resistance genes were identified. At the same time, virulence factors associated with toxin production and secretion system were not found, indicating that W. confusa strains were not sufficient to perform virulence. Our study facilitated the discovery of the functions of W. confusa LM1 in locust biology and their potential application to locust management.
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Affiliation(s)
- Shenglei Yuan
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
| | - Yundan Wang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
| | - Fangqing Zhao
- Beijing Institutes of Life Science, Chinese Academy of Sciences, Beijing, China
| | - Le Kang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China.,Beijing Institutes of Life Science, Chinese Academy of Sciences, Beijing, China.,College of Life Science, Hebei University, Baoding, China
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23
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Roselli M, Natella F, Zinno P, Guantario B, Canali R, Schifano E, De Angelis M, Nikoloudaki O, Gobbetti M, Perozzi G, Devirgiliis C. Colonization Ability and Impact on Human Gut Microbiota of Foodborne Microbes From Traditional or Probiotic-Added Fermented Foods: A Systematic Review. Front Nutr 2021; 8:689084. [PMID: 34395494 PMCID: PMC8360115 DOI: 10.3389/fnut.2021.689084] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 07/02/2021] [Indexed: 12/22/2022] Open
Abstract
A large subset of fermented foods act as vehicles of live environmental microbes, which often contribute food quality assets to the overall diet, such as health-associated microbial metabolites. Foodborne microorganisms also carry the potential to interact with the human gut microbiome via the food chain. However, scientific results describing the microbial flow connecting such different microbiomes as well as their impact on human health, are still fragmented. The aim of this systematic review is to provide a knowledge-base about the scientific literature addressing the connection between foodborne and gut microbiomes, as well as to identify gaps where more research is needed to clarify and map gut microorganisms originating from fermented foods, either traditional or added with probiotics, their possible impact on human gut microbiota composition and to which extent foodborne microbes might be able to colonize the gut environment. An additional aim was also to highlight experimental approaches and study designs which could be better standardized to improve comparative analysis of published datasets. Overall, the results presented in this systematic review suggest that a complex interplay between food and gut microbiota is indeed occurring, although the possible mechanisms for this interaction, as well as how it can impact human health, still remain a puzzling picture. Further research employing standardized and trans-disciplinary approaches aimed at understanding how fermented foods can be tailored to positively influence human gut microbiota and, in turn, host health, are therefore of pivotal importance.
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Affiliation(s)
- Marianna Roselli
- Research Centre for Food and Nutrition, CREA (Council for Agricultural Research and Economics), Rome, Italy
| | - Fausta Natella
- Research Centre for Food and Nutrition, CREA (Council for Agricultural Research and Economics), Rome, Italy
| | - Paola Zinno
- Research Centre for Food and Nutrition, CREA (Council for Agricultural Research and Economics), Rome, Italy
| | - Barbara Guantario
- Research Centre for Food and Nutrition, CREA (Council for Agricultural Research and Economics), Rome, Italy
| | - Raffaella Canali
- Research Centre for Food and Nutrition, CREA (Council for Agricultural Research and Economics), Rome, Italy
| | - Emily Schifano
- Research Centre for Food and Nutrition, CREA (Council for Agricultural Research and Economics), Rome, Italy
| | - Maria De Angelis
- Department of Soil, Plant and Food Science, University of Bari Aldo Moro, Bari, Italy
| | - Olga Nikoloudaki
- Faculty of Science and Technology, Free University of Bozen-Bolzano, Bolzano, Italy
| | - Marco Gobbetti
- Faculty of Science and Technology, Free University of Bozen-Bolzano, Bolzano, Italy
| | - Giuditta Perozzi
- Research Centre for Food and Nutrition, CREA (Council for Agricultural Research and Economics), Rome, Italy
| | - Chiara Devirgiliis
- Research Centre for Food and Nutrition, CREA (Council for Agricultural Research and Economics), Rome, Italy
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24
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Sanjulián L, Lamas A, Barreiro R, Cepeda A, Fente CA, Regal P. Bacterial Diversity of Breast Milk in Healthy Spanish Women: Evolution from Birth to Five Years Postpartum. Nutrients 2021; 13:2414. [PMID: 34371924 PMCID: PMC8308733 DOI: 10.3390/nu13072414] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/07/2021] [Accepted: 07/09/2021] [Indexed: 12/27/2022] Open
Abstract
The objective of this work was to characterize the microbiota of breast milk in healthy Spanish mothers and to investigate the effects of lactation time on its diversity. A total of ninety-nine human milk samples were collected from healthy Spanish women and were assessed by means of next-generation sequencing of 16S rRNA amplicons and by qPCR. Firmicutes was the most abundant phylum, followed by Bacteroidetes, Actinobacteria, and Proteobacteria. Accordingly, Streptococcus was the most abundant genus. Lactation time showed a strong influence in milk microbiota, positively correlating with Actinobacteria and Bacteroidetes, while Firmicutes was relatively constant over lactation. 16S rRNA amplicon sequencing showed that the highest alpha-diversity was found in samples of prolonged lactation, along with wider differences between individuals. As for milk nutrients, calcium, magnesium, and selenium levels were potentially associated with Streptococcus and Staphylococcus abundance. Additionally, Proteobacteria was positively correlated with docosahexaenoic acid (DHA) levels in breast milk, and Staphylococcus with conjugated linoleic acid. Conversely, Streptococcus and trans-palmitoleic acid showed a negative association. Other factors such as maternal body mass index or diet also showed an influence on the structure of these microbial communities. Overall, human milk in Spanish mothers appeared to be a complex niche shaped by host factors and by its own nutrients, increasing in diversity over time.
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Affiliation(s)
| | - Alexandre Lamas
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Science, Universidade de Santiago de Compostela, 27002 Lugo, Spain; (L.S.); (R.B.); (A.C.); (C.A.F.)
| | | | | | | | - Patricia Regal
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Science, Universidade de Santiago de Compostela, 27002 Lugo, Spain; (L.S.); (R.B.); (A.C.); (C.A.F.)
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25
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Rajeev R, Seethalakshmi PS, Jena PK, Prathiviraj R, Kiran GS, Selvin J. Gut microbiome responses in the metabolism of human dietary components: Implications in health and homeostasis. Crit Rev Food Sci Nutr 2021; 62:7615-7631. [PMID: 34016000 DOI: 10.1080/10408398.2021.1916429] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The gut microbiome and its link with human health and disease have gained a lot of attention recently. The microbiome executes its functions in the host by carrying out the transformation of dietary components and/or de novo synthesis of various essential nutrients. The presence of complex microbial communities makes it difficult to understand the host-microbiome interplay in the metabolism of dietary components. This review attempts to uncover the incredible role of the gut microbiome in the metabolism of dietary components, diet-microbiome interplay, and restoration of the microbiome. The in silico analysis performed in this study elucidates the functional description of essential/hub genes involved in the amino acid degradation pathway, which are mutually present in the host and its gut microbiome. Hence, the computational model helps comprehend the inter-and intracellular molecular networks between humans and their microbial partners.
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Affiliation(s)
- Riya Rajeev
- Department of Microbiology, Pondicherry University, Puducherry, India
| | - P S Seethalakshmi
- Department of Microbiology, Pondicherry University, Puducherry, India
| | - Prasant Kumar Jena
- Immunology and infectious disease research, Department of Pediatrics, Cedars Sinai Medical Center, Los Angeles, California, USA
| | - R Prathiviraj
- Department of Microbiology, Pondicherry University, Puducherry, India
| | - George Seghal Kiran
- Department of Food Science and Technology, Pondicherry University, Puducherry, India
| | - Joseph Selvin
- Department of Microbiology, Pondicherry University, Puducherry, India
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26
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Niu H, Zhou X, Zhang X, Liu T, Wu Y, Lyu L, Liang C, Chen S, Gong P, Zhang J, Han X, Jiang S, Zhang L. Breast milk contains probiotics with anti-infantile diarrhoea effects that may protect infants as they change to solid foods. Environ Microbiol 2021; 23:1750-1764. [PMID: 33684236 DOI: 10.1111/1462-2920.15390] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 01/04/2021] [Indexed: 12/20/2022]
Abstract
Infants often experience complementary food-induced diarrhoea (CFID), which occurs when infants switch from breast milk to solid foods. The relative abundances of Prevotella and Rothia were higher in stools of infants with CFID, while the relative abundances of Enterococcus and Escherichia were higher in healthy infants. The abundance of Lactobacillus spp. normally found in breast milk fed to infants with CFID was significantly reduced, and Enterococcus spp. were less abundant when diarrhoea occurred. Furthermore, Lactobacillus and Enterococcus were present as shared bacteria in both mother and infant, and they were considered potential anti-CFID probiotics as their relative abundances in breast milk were negatively correlated to infant CFID. Kyoto encyclopedia of genes and genomes (KEGG) functional analysis showed that the function of amino acid metabolism differed between infants with CFID and healthy infants. Therefore, CFID might be related to the decomposition of proteins in food supplements. The screening revealed seven hydrolytic casein and five hydrolytic casein and rice protein isolates from 320 suspected Lactobacillus and Enterococcus isolates. The animal experiments demonstrated that a mixture of five isolates effectively hydrolysed the casein and rice protein and prevented diarrhoea in young rats. Thus, the occurrence of CFID was found to be closely related to the intestinal and breast milk microbiota, and bacteria that could assist in the digestion of cereal proteins were involved in CFID.
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Affiliation(s)
- Haiyue Niu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
| | | | | | - Tongjie Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, China
| | - Yifan Wu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
| | - Linzheng Lyu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
| | - Cong Liang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
| | - Shiwei Chen
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
| | - Pimin Gong
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, China
| | - Jiliang Zhang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
| | - Xue Han
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
| | - Shilong Jiang
- Heilongjiang Feihe Dairy Co. Ltd., Beijing, 100015, China
| | - Lanwei Zhang
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, China
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27
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Ding J, Liao N, Zheng Y, Yang L, Zhou H, Xu K, Han C, Luo H, Qin C, Tang C, Wei L, Meng H. Corrigendum: The Composition and Function of Pigeon Milk Microbiota Transmitted From Parent Pigeons to Squabs. Front Microbiol 2021; 12:641828. [PMID: 33679678 PMCID: PMC7930902 DOI: 10.3389/fmicb.2021.641828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 02/02/2021] [Indexed: 11/19/2022] Open
Affiliation(s)
- Jinmei Ding
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Nan Liao
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Yuming Zheng
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Lingyu Yang
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Hao Zhou
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Ke Xu
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Chengxiao Han
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Huaixi Luo
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Chao Qin
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Chunhong Tang
- Shanghai Xinrong Big Emperor Pigeon Breeding Professional Cooperation, Shanghai, China
| | - Longxing Wei
- Fengxian District Animal Disease Prevention and Control Center, Shanghai, China
| | - He Meng
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
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28
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Khan S, Ashraf H, Iftikhar S, Baig-Ansari N. Impact of hand hygiene intervention on hand washing ability of school-aged children. J Family Med Prim Care 2021; 10:642-647. [PMID: 34041054 PMCID: PMC8138401 DOI: 10.4103/jfmpc.jfmpc_1906_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 10/04/2020] [Accepted: 10/05/2020] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND To assess the current knowledge related to hand washing and efficiency of intervention on hand washing techniques amongst school children. METHODOLOGY A randomized control trial was conducted amongst class II students of a private school in Korangi, Karachi. Pre-intervention assessment including baseline knowledge and observed practices of hand washing in comparison with World Health Organization (WHO) standard hand washing techniques was done. This was followed by education and demonstration of proper hand washing steps by principal investigator utilizing visual aids. Participants were then randomized into two group: Group A (education only group) and Group B (education along with glow gel application group). First post-intervention assessment was conducted on same day where both groups were observed for the hand washing steps and scored for hand washing technique. In addition, participants of group B were shown germs under Ultraviolet (UV) light. School was revisited after 1 week later and participants were reassessed for their hand washing technique along with cleanliness grade after applying glow gel and observing under UV light. Data was entered and analyzed using SPSS version 21.0. RESULT No significant differences were found in median hand washing scores pre-intervention between both the groups (Group A vs B: 4 vs 5, P value = 0.659), while significant improvement in median hand washing scores was seen post intervention in group B as compared to group A (7 vs 6, P value = 0.011). However, no significant differences were seen in median hand washing scores at follow-up between both the groups (Group A vs B: 9 vs 8.5, P value = 0.715) but a significant improvement was observed in both the groups in the hand washing practices from baseline (P-value = 0.000). On the contrary, no significant differences were found in median cleanliness grade between both the groups (Median for both the groups was 5, P value = 0.695). CONCLUSIONS Hand washing education utilizing various aids is an effective method to improve children's hand washing capability. This short-term intervention was effective even in absence of glow gel, but no cleanliness of hands was observed in both the groups.
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Affiliation(s)
| | - Hiba Ashraf
- Family Medicine Department, The Indus Hospital, Pakistan
| | - Sundus Iftikhar
- Statistics and Training Unit, Indus Hospital Research Center, The Indus Hospital, Pakistan
| | - Naila Baig-Ansari
- Indus Hospital Research Center, The Indus Hospital and Director, IRD Institutional Review Board, Pakistan
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29
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Cortes-Macías E, Selma-Royo M, García-Mantrana I, Calatayud M, González S, Martínez-Costa C, Collado MC. Maternal Diet Shapes the Breast Milk Microbiota Composition and Diversity: Impact of Mode of Delivery and Antibiotic Exposure. J Nutr 2021; 151:330-340. [PMID: 33188413 PMCID: PMC7850106 DOI: 10.1093/jn/nxaa310] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 07/21/2020] [Accepted: 09/16/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Breast milk is a complex biofluid that provides nutrients and bioactive agents, including bacteria, for the development of the infant gut microbiota. However, the impact of maternal diet and other factors, such as mode of delivery and antibiotic exposure, on the breast milk microbiota has yet to be understood. OBJECTIVES This study aimed to examine the association between maternal diet and breast milk microbiota and to ascertain the potential role of mode of delivery and antibiotic exposure. METHODS In a cross-sectional study of the MAMI cohort, breast milk microbiota profiling was assessed in 120 samples from healthy mothers by 16S rRNA gene sequencing. Maternal dietary information was recorded through an FFQ, and clinical characteristics, including mode of delivery, antibiotic exposure, and exclusive breastfeeding, were collected. RESULTS Maternal diet was grouped into 2 clusters: Cluster I (high intake of plant protein, fiber, and carbohydrates), and Cluster II (high intake of animal protein and lipids). Breast milk microbiota was shaped by maternal dietary clusters. Staphylococcus and Bifidobacterium were associated with carbohydrate intake whereas the Streptococcus genus was associated with intakes of the n-3 PUFAs [EPA and docosapentaenoic acid (22:5ω-3)]. Mode of delivery and antibiotic exposure influenced breast milk microbiota in a diet cluster-dependent manner. Differences between/among the maternal dietary clusters were found in the milk microbiota of the cesarean-section (C-section)/antibiotic group, whereas no differences were observed in vaginal births. Lower abundances of Lactobacillus, Bacteroides, and Sediminibacterium genera were observed in Cluster II/C-section/antibiotic exposure compared with the other groups. CONCLUSIONS Maternal diet shapes the composition and diversity of breast milk microbiota, with the most important contributions coming from dietary fiber and both plant and animal protein intakes. The relation between the maternal diet and the milk microbiota needs further research because it has a key impact on infant microbiota development and contributes to infant health outcomes in the short and long term.This trial was registered at clinicaltrials.gov as NCT03552939.
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Affiliation(s)
- Erika Cortes-Macías
- Institute of Agrochemistry and Food Technology (IATA-CSIC), National Research Council, Valencia, Spain
| | - Marta Selma-Royo
- Institute of Agrochemistry and Food Technology (IATA-CSIC), National Research Council, Valencia, Spain
| | - Izaskun García-Mantrana
- Institute of Agrochemistry and Food Technology (IATA-CSIC), National Research Council, Valencia, Spain
| | - Marta Calatayud
- Institute of Agrochemistry and Food Technology (IATA-CSIC), National Research Council, Valencia, Spain
| | - Sonia González
- Department of Functional Biology, Faculty of Medicine, University of Oviedo, Oviedo, Spain
- Diet, Microbiota and Health Group, Instituto de Investigación Sanitaria del Principado de Asturias (DIMISA, ISPA), Oviedo, Spain
| | - Cecilia Martínez-Costa
- Department of Pediatrics, School of Medicine, University of Valencia, Valencia, Spain
- Pediatric Gastroenterology and Nutrition Section, Hospital Clínico Universitario Valencia, INCLIVA, Valencia, Spain
| | - Maria Carmen Collado
- Institute of Agrochemistry and Food Technology (IATA-CSIC), National Research Council, Valencia, Spain
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30
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A Comparative Transcriptomic Analysis of Human Placental Trophoblasts in Response to Pathogenic and Probiotic Enterococcus faecalis Interaction. CANADIAN JOURNAL OF INFECTIOUS DISEASES AND MEDICAL MICROBIOLOGY 2021; 2021:6655414. [PMID: 33574972 PMCID: PMC7861945 DOI: 10.1155/2021/6655414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 12/17/2020] [Accepted: 01/12/2021] [Indexed: 11/17/2022]
Abstract
With the ability to cross placental barriers in their hosts, strains of Gram-positive Enterococcus faecalis can exhibit either beneficial or harmful properties. However, the mechanisms underlying these effects have yet to be determined. A comparative transcriptomic analysis of human placental trophoblasts in response to pathogenic or probiotic E. faecalis was performed in order to investigate the molecular basis of different traits. Results indicated that both E. faecalis Symbioflor 1 and V583 could pass through the placental barrier in vitro with similar levels of invasion ability. In total, 2353 (1369 upregulated and 984 downregulated) and 2351 (1233 upregulated and 1118 downregulated) DEGs were identified in Symbioflor 1 and V583, respectively. Furthermore, 1074 (671 upregulated and 403 downregulated) and 1072 (535 upregulated and 537 downregulated) DEGs were only identified in Symbioflor 1 and V583 treatment groups, respectively. KEGG analysis showed that 6 and 9 signaling pathways were associated with interactions between Symbioflor 1 and V583. GO analysis revealed that these DEGs were mainly related to cellular and metabolic processes and biological regulation. However, 28 and 44 DEGs were classified into terms associated with placental and embryonic development in Symbioflor 1 and V583 treatment groups, respectively. Notably, 9 and 25 unique DEGs were identified only in Symbioflor 1 and V583 treatment groups, respectively. A large proportion of transcriptional responses differed when compared between pathogenic and probiotic E. faecalis interaction, and several unique DEGs and signal pathways were identified in the two different groups. These data enhance our understanding of how different traits can be affected by pathogenic and probiotic E. faecalis and the mechanisms underlying these effects.
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Zhao Y, Yu L, Tian F, Zhao J, Zhang H, Chen W, Zhai Q. An optimized culture medium to isolate Lactobacillus fermentum strains from the human intestinal tract. Food Funct 2021; 12:6740-6754. [PMID: 34105590 DOI: 10.1039/d1fo00209k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Research studies have shown that Lactobacillus fermentum generally exists in the human gut and has potential health benefits on host health due to its antimicrobial and antioxidant properties. However, the lack of an effective culture medium for the isolation of L. fermentum has presented a significant obstacle on the path to screen L. fermentum strains from the human intestinal tract with a large diversity of commensal microbes. In this study, a total of 51 Lactobacillus species are detected in 200 human fecal samples and we aim to distinguish L. fermentum from these common existing Lactobacillus species and design a more efficient culture medium for isolating L. fermentum strains from the human gut. Based on antibiotic susceptibility and sugar utilization tests, a new optimized medium called LFMATA containing arabinose as the carbon source and 20 mg L-1 vancomycin, 64 mg L-1 gentamicin and 256 mg L-1 streptomycin was developed. Genotype and phenotype analysis for antibiotic resistance and carbohydrate metabolism showed that though glycometabolism-related genes (araA, xylA, manX, bglX, treP and rbsK) correlated with the carbon utilization of Lactobacillus, the genes conferring resistance to streptomycin (gidB and rpsL) and gentamicin (tlyA) were not directly associated with the antibiotic resistance of Lactobacillus strains. This new selective medium greatly increased the efficiency of screening L. fermentum strains from human fecal samples, with the rate of L. fermentum isolation on LFMATA being 10-fold higher than that on LAMVAB.
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Affiliation(s)
- Yan Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China.
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Zhang X, Mushajiang S, Luo B, Tian F, Ni Y, Yan W. The Composition and Concordance of Lactobacillus Populations of Infant Gut and the Corresponding Breast-Milk and Maternal Gut. Front Microbiol 2020; 11:597911. [PMID: 33408705 PMCID: PMC7779531 DOI: 10.3389/fmicb.2020.597911] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 11/02/2020] [Indexed: 12/16/2022] Open
Abstract
The maternal gut is the principal source of commensal bacteria in the infant gut during the lactation stage, where breast milk acts as an intermediary for the transfer of potential probiotic bacteria consortia, including Lactobacillus. This study aimed to characterize the bacterial communities in human milk, maternal, and infant feces in a small yet very homogeneous cohort of 25 healthy mother–infant pairs in northwestern China (n = 25, infant age from 7 days to 2 years), with special emphasis on the cooccurrence and vertical transfer of Lactobacillus phylotypes at the species or strain level in mother-breast milk-infant triads. Accurate sequencing analysis revealed that among 73 Lactobacillus zero-radius operational classification units (ZOTUs) identified, 58 belonging to 18 recognized species or species groups were distributed in all three types of samples. Lactobacillus ruminis, L. mucosae and L. gasseri-johnsonii as true residents were the most represented in all three ecosystems, whereas the content of Lactobacillus phylotypes commonly developed as probiotics was not dominant. While the numbers of Lactobacillus species in breast milk and infant feces were greater than that in maternal feces, principal coordinates analysis (PCoA) based on beta diversity, coupled with the frequency of isolates determined by culture methods, showed that the Lactobacillus community in the infant gut was more similar to that in the maternal gut than to that in breast milk, suggesting that the gut is niche selective for Lactobacillus populations. In addition, identical strains of L. ruminis, L. paracasei, L. mucosae and L. salivarius were isolated from multiple mother–infant pairs, supporting the hypothesis that vertical transfer of bacteria via breastfeeding contributes to the initial establishment of the microbiota in the developing infant intestine.
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Affiliation(s)
- Xuyao Zhang
- School of Food Science and Technology, Shihezi University, Shihezi, China
| | | | - Baolong Luo
- School of Food Science and Technology, Shihezi University, Shihezi, China
| | - Fengwei Tian
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Yongqing Ni
- School of Food Science and Technology, Shihezi University, Shihezi, China
| | - Wenli Yan
- School of Food Science and Technology, Shihezi University, Shihezi, China
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Lopez Leyva L, Brereton NJ, Koski KG. Emerging frontiers in human milk microbiome research and suggested primers for 16S rRNA gene analysis. Comput Struct Biotechnol J 2020; 19:121-133. [PMID: 33425245 PMCID: PMC7770459 DOI: 10.1016/j.csbj.2020.11.057] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 11/24/2020] [Accepted: 11/28/2020] [Indexed: 02/06/2023] Open
Abstract
Human milk is the ideal food for infants due to its unique nutritional and immune properties, and more recently human milk has also been recognized as an important source of bacteria for infants. However, a substantial amount of fundamental human milk microbiome information remains unclear, such as the origin, composition and function of the community and its members. There is emerging evidence to suggest that the diversity and composition of the milk microbiome might differ between lactation stages, due to maternal factors and diet, agrarian and urban lifestyles, and geographical location. The evolution of the methods used for studying milk microbiota, transitioning from culture dependent-approaches to include culture-independent approaches, has had an impact on findings and, in particular, primer selection within 16S rRNA gene barcoding studies have led to discrepancies in observed microbiota communities. Here, the current state-of-the-art is reviewed and emerging frontiers essential to improving our understanding of the human milk microbiome are considered.
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Affiliation(s)
- Lilian Lopez Leyva
- School of Human Nutrition, McGill University, Macdonald Stewart Building, 21111 Lakeshore Road, Ste-Anne de Bellevue, QC H9X 3V9, Canada
| | - Nicholas J.B. Brereton
- Institut de Recherche en Biologie Végétale, Université de Montréal, 4101 Sherbrooke St E, Montreal, QC H1X 2B2, Canada
| | - Kristine G. Koski
- School of Human Nutrition, McGill University, Macdonald Stewart Building, 21111 Lakeshore Road, Ste-Anne de Bellevue, QC H9X 3V9, Canada
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34
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Fernández L, Pannaraj PS, Rautava S, Rodríguez JM. The Microbiota of the Human Mammary Ecosystem. Front Cell Infect Microbiol 2020; 10:586667. [PMID: 33330129 PMCID: PMC7718026 DOI: 10.3389/fcimb.2020.586667] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 10/15/2020] [Indexed: 12/12/2022] Open
Abstract
Human milk contains a dynamic and complex site-specific microbiome, which is not assembled in an aleatory way, formed by organized microbial consortia and networks. Presence of some genera, such as Staphylococcus, Streptococcus, Corynebacterium, Cutibacterium (formerly known as Propionibacterium), Lactobacillus, Lactococcus and Bifidobacterium, has been detected by both culture-dependent and culture-independent approaches. DNA from some gut-associated strict anaerobes has also been repeatedly found and some studies have revealed the presence of cells and/or nucleic acids from viruses, archaea, fungi and protozoa in human milk. Colostrum and milk microbes are transmitted to the infant and, therefore, they are among the first colonizers of the human gut. Still, the significance of human milk microbes in infant gut colonization remains an open question. Clinical studies trying to elucidate the question are confounded by the profound impact of non-microbial human milk components to intestinal microecology. Modifications in the microbiota of human milk may have biological consequences for infant colonization, metabolism, immune and neuroendocrine development, and for mammary health. However, the factors driving differences in the composition of the human milk microbiome remain poorly known. In addition to colostrum and milk, breast tissue in lactating and non-lactating women may also contain a microbiota, with implications in the pathogenesis of breast cancer and in some of the adverse outcomes associated with breast implants. This and other open issues, such as the origin of the human milk microbiome, and the current limitations and future prospects are addressed in this review.
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Affiliation(s)
- Leónides Fernández
- Department of Galenic Pharmacy and Food Technology, Complutense University of Madrid, Madrid, Spain
| | - Pia S. Pannaraj
- Department of Pediatrics and Molecular Microbiology and Immunology, Keck School of Medicine and Children’s Hospital, Los Angeles, CA, United States
| | - Samuli Rautava
- University of Helsinki and Helsinki University Hospital, New Children’s Hospital, Pediatric Research Center, Helsinki, Finland
| | - Juan M. Rodríguez
- Department of Nutrition and Food Science, Complutense University of Madrid, Madrid, Spain
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Laursen MF, Larsson MW, Lind MV, Larnkjær A, Mølgaard C, Michaelsen KF, Bahl MI, Licht TR. Intestinal Enterococcus abundance correlates inversely with excessive weight gain and increased plasma leptin in breastfed infants. FEMS Microbiol Ecol 2020; 96:5818758. [PMID: 32275305 PMCID: PMC7183236 DOI: 10.1093/femsec/fiaa066] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 04/03/2020] [Indexed: 01/04/2023] Open
Abstract
Epidemiological evidence indicates that breastfeeding provides protection against development of overweight/obesity. Nonetheless, a small subgroup of infants undergo excessive weight gain during exclusive breastfeeding, a phenomenon that remains unexplained. Breast milk contains both gut-seeding microbes and substrates for microbial growth in the gut of infants, and a large body of evidence suggests a role for gut microbes in host metabolism. Based on the recently established SKOT III cohort, we investigated the role of the infant gut microbiota in excessive infant weight gain during breastfeeding, including 30 exclusively breastfed infants, 13 of which exhibited excessive weight gain and 17 controls which exhibited normal weight gain during infancy. Infants undergoing excessive weight gain during breastfeeding had a reduced abundance of gut Enterococcus as compared with that observed in the controls. Within the complete cohort, Enterococcus abundance correlated inversely with age/gender-adjusted body-weight, body-mass index and waist circumference, body fat and levels of plasma leptin. The reduced abundance of Enterococcus in infants with excessive weight gain was coupled to a lower content of Enterococcus in breast milk samples of their mothers than seen for mothers in the control group. Together, this suggests that lack of breast milk-derived gut-seeding Enterococci may contribute to excessive weight gain in breastfed infants.
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Affiliation(s)
- Martin Frederik Laursen
- National Food Institute, Technical University of Denmark, Kemitorvet 202, 2800 Kgs Lyngby, Denmark
| | - Melanie Wange Larsson
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Nørre Allé 51, 2200 Copenhagen N, Denmark.,Department of Nursing and Nutrition, University College Copenhagen, Humletorvet 3, 1799 Copenhagen V, Denmark
| | - Mads Vendelbo Lind
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Nørre Allé 51, 2200 Copenhagen N, Denmark
| | - Anni Larnkjær
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Nørre Allé 51, 2200 Copenhagen N, Denmark
| | - Christian Mølgaard
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Nørre Allé 51, 2200 Copenhagen N, Denmark
| | - Kim F Michaelsen
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Nørre Allé 51, 2200 Copenhagen N, Denmark
| | - Martin Iain Bahl
- National Food Institute, Technical University of Denmark, Kemitorvet 202, 2800 Kgs Lyngby, Denmark
| | - Tine Rask Licht
- National Food Institute, Technical University of Denmark, Kemitorvet 202, 2800 Kgs Lyngby, Denmark
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36
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Quin C, Gibson DL. Human behavior, not race or geography, is the strongest predictor of microbial succession in the gut bacteriome of infants. Gut Microbes 2020; 11:1143-1171. [PMID: 32249675 PMCID: PMC7524360 DOI: 10.1080/19490976.2020.1736973] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Colonization of the gastrointestinal tract with microorganisms during infancy represents a critical control point for shaping life-long immune-mediated disease susceptibility. Abnormal colonization or an imbalance of microbes, termed dysbiosis, is implicated in several diseases. Consequently, recent research has aimed at understanding ways to manipulate a dysbiotic microbiome during infancy to resemble a normal, healthy microbiome. However, one of the fundamental issues in microbiome research is characterizing what a "normal" infant microbiome is based on geography, ethnicity and cultural variations. This review provides a comprehensive account of what is currently known about the infant microbiome from a global context. In general, this review shows that the influence of cultural variations in feeding practices, delivery modes and hygiene are the biggest contributors to microbial variability. Despite geography or race, all humans have similar microbial succession during infancy.
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Affiliation(s)
- Candice Quin
- Department of Biology, University of British Columbia, Kelowna, Canada
| | - Deanna L. Gibson
- Department of Biology, University of British Columbia, Kelowna, Canada,Department of Medicine, University of British Columbia, Kelowna, Canada,CONTACT Deanna L. Gibson Department of Biology, University of British Columbia, Okanagan Campus, ASC 386, 3187 University Way, Kelowna, BCV1V 1V7, Canada
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37
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The Impact of the Postpartum "Doing-the-Month" Practice on Human Milk Microbiota: A Pilot Study in Taiwan. Microorganisms 2020; 8:microorganisms8091283. [PMID: 32842688 PMCID: PMC7564682 DOI: 10.3390/microorganisms8091283] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 08/17/2020] [Accepted: 08/19/2020] [Indexed: 12/26/2022] Open
Abstract
Human milk microorganisms could benefit the healthy development of the immune system in infants. In Asia, the practice of “doing-the-month” indicates a month-long period of postpartum recuperation for new mothers. This is composed of cultural practices, traditional beliefs, behavioral, dietary, and herbal therapies. In this pilot study, we evaluated the effect of “doing-the-month” on the human milk microbiota using a molecular approach. We collected two “doing-the-month” milk groups from randomly recruited mothers who had completed their “doing-the-month” program in either postpartum care center A (milk-PCA, n = 14) or postpartum care center B (milk-PCB, n = 27) for 20 to 30 days. As for the control group, milk samples were selected from postpartum mothers (milk-H, n = 46), who did not conduct the “doing-the-month” program. We found that the “doing-the-month” milk samples were associated with more diverse and unique milk microbiota and that these samples were also linked with more abundant Lactobacillus (milk-PCB) and prevalent Bifidobacteria (milk-PCA and milk-PCB). In addition, the milk samples from “doing-the-month” mothers could be enriched with more Archaea bacterial members, but the “non-doing-the-month” milk samples were enriched with more common skin-, oral-, and environmental-related bacterial members. This study highlights the impact maternal practices may have on the milk microbiome. More research is needed to investigate the effects this may have on infant immune health.
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38
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Sharma A, Lee S, Park YS. Molecular typing tools for identifying and characterizing lactic acid bacteria: a review. Food Sci Biotechnol 2020; 29:1301-1318. [PMID: 32995049 PMCID: PMC7492335 DOI: 10.1007/s10068-020-00802-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 07/21/2020] [Accepted: 07/24/2020] [Indexed: 02/08/2023] Open
Abstract
Identification and classification of beneficial microbes is of the highest significance in food science and related industries. Conventional phenotypic approaches pose many challenges, and they may misidentify a target, limiting their use. Genotyping tools show comparatively better prospects, and they are widely used for distinguishing microorganisms. The techniques already employed in genotyping of lactic acid bacteria (LAB) are slightly different from one another, and each tool has its own advantages and disadvantages. This review paper compiles the comprehensive details of several fingerprinting tools that have been used for identifying and characterizing LAB at the species, sub-species, and strain levels. Notably, most of these approaches are based on restriction digestion, amplification using polymerase chain reaction, and sequencing. Nowadays, DNA sequencing technologies have made considerable progress in terms of cost, throughput, and methodology. A research journey to develop improved versions of generally applicable and economically viable tools for fingerprinting analysis is ongoing globally.
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Affiliation(s)
- Anshul Sharma
- Department of Food and Nutrition, Gachon University, Seongnam, 13120 Republic of Korea.,Faculty of Applied Sciences and Biotechnology, Shoolini University of Biotechnology and Management Sciences, Bajhol, Solan, Himachal Pradesh 173229 India
| | - Sulhee Lee
- Research Group of Healthcare, Korea Food Research Institute, Wanju, 55365 Republic of Korea
| | - Young-Seo Park
- Department of Food Science and Biotechnology, Gachon University, Seongnam, 13120 Republic of Korea
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Ding J, Liao N, Zheng Y, Yang L, Zhou H, Xu K, Han C, Luo H, Qin C, Tang C, Wei L, Meng H. The Composition and Function of Pigeon Milk Microbiota Transmitted From Parent Pigeons to Squabs. Front Microbiol 2020; 11:1789. [PMID: 32849405 PMCID: PMC7417789 DOI: 10.3389/fmicb.2020.01789] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 07/08/2020] [Indexed: 12/11/2022] Open
Abstract
Mammalian neonates obtain antibodies, nutrients, and microbiota from breast milk that help them resist the complex growth environment. Similar to mammals' lactation behavior for their offspring, parent pigeons regurgitate pigeon milk (PM) from their crops to feed the squabs. Whether pigeon milk is as valuable as mammalian milk is not clear, especially in terms of microbiota. This study adopted 16S rRNA gene sequencing to investigate the microbial composition and function in pigeon milk. We found abundant microbiota in pigeon milk. The dominant genera in parent pigeons' milk were Lactobacillus, Enterococcus, Veillonella, and Bifidobacterium. An analysis of squab milk (SM) showed that Lactobacillus also accounted for a considerable proportion, followed by Bifidobacterium. Most of the squab milk microbial genera were also detected in parent pigeons. Microbial functional analysis showed that the squab milk microbes were more involved in the pathways of carbohydrate metabolism, amino acid metabolism, and energy metabolism. These findings indicated that microbiota play an important role in squabs and can be transmitted from parent pigeons to squabs by pigeon milk. The presence of plentiful probiotics in squabs also suggests that adding probiotics in artificial pigeon milk may promote the growth and development of squabs and improve the production performance of pigeons.
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Affiliation(s)
- Jinmei Ding
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Nan Liao
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Yuming Zheng
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Lingyu Yang
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Hao Zhou
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Ke Xu
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Chengxiao Han
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Huaixi Luo
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Chao Qin
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Chunhong Tang
- Shanghai Xinrong Big Emperor Pigeon Breeding Professional Cooperation, Shanghai, China
| | - Longxing Wei
- Fengxian District Animal Disease Prevention and Control Center, Shanghai, China
| | - He Meng
- Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
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Human milk and mucosa-associated disaccharides impact on cultured infant fecal microbiota. Sci Rep 2020; 10:11845. [PMID: 32678209 PMCID: PMC7366668 DOI: 10.1038/s41598-020-68718-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 06/30/2020] [Indexed: 12/17/2022] Open
Abstract
Human milk oligosaccharides (HMOs) are a mixture of structurally diverse carbohydrates that contribute to shape a healthy gut microbiota composition. The great diversity of the HMOs structures does not allow the attribution of specific prebiotic characteristics to single milk oligosaccharides. We analyze here the utilization of four disaccharides, lacto-N-biose (LNB), galacto-N-biose (GNB), fucosyl-α1,3-GlcNAc (3FN) and fucosyl-α1,6-GlcNAc (6FN), that form part of HMOs and glycoprotein structures, by the infant fecal microbiota. LNB significantly increased the total levels of bifidobacteria and the species Bifidobacterium breve and Bifidobacterium bifidum. The Lactobacillus genus levels were increased by 3FN fermentation and B. breve by GNB and 3FN. There was a significant reduction of Blautia coccoides group with LNB and 3FN. In addition, 6FN significantly reduced the levels of Enterobacteriaceae family members. Significantly higher concentrations of lactate, formate and acetate were produced in cultures containing either LNB or GNB in comparison with control cultures. Additionally, after fermentation of the oligosaccharides by the fecal microbiota, several Bifidobacterium strains were isolated and identified. The results presented here indicated that each, LNB, GNB and 3FN disaccharide, might have a specific beneficial effect in the infant gut microbiota and they are potential prebiotics for application in infant foods.
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Lyons KE, Ryan CA, Dempsey EM, Ross RP, Stanton C. Breast Milk, a Source of Beneficial Microbes and Associated Benefits for Infant Health. Nutrients 2020; 12:E1039. [PMID: 32283875 PMCID: PMC7231147 DOI: 10.3390/nu12041039] [Citation(s) in RCA: 247] [Impact Index Per Article: 61.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 04/03/2020] [Accepted: 04/04/2020] [Indexed: 12/27/2022] Open
Abstract
Human breast milk is considered the optimum feeding regime for newborn infants due to its ability to provide complete nutrition and many bioactive health factors. Breast feeding is associated with improved infant health and immune development, less incidences of gastrointestinal disease and lower mortality rates than formula fed infants. As well as providing fundamental nutrients to the growing infant, breast milk is a source of commensal bacteria which further enhance infant health by preventing pathogen adhesion and promoting gut colonisation of beneficial microbes. While breast milk was initially considered a sterile fluid and microbes isolated were considered contaminants, it is now widely accepted that breast milk is home to its own unique microbiome. The origins of bacteria in breast milk have been subject to much debate, however, the possibility of an entero-mammary pathway allowing for transfer of microbes from maternal gut to the mammary gland is one potential pathway. Human milk derived strains can be regarded as potential probiotics; therefore, many studies have focused on isolating strains from milk for subsequent use in infant health and nutrition markets. This review aims to discuss mammary gland development in preparation for lactation as well as explore the microbial composition and origins of the human milk microbiota with a focus on probiotic development.
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Affiliation(s)
- Katríona E. Lyons
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork P61 C996, Ireland
- School of Microbiology, University College Cork, Cork T12 YN60, Ireland
| | - C. Anthony Ryan
- APC Microbiome Ireland, University College Cork, Cork T12 YT20, Ireland
- Department of Neonatology, Cork University Maternity Hospital, Cork T12 YE02, Ireland
| | - Eugene M. Dempsey
- APC Microbiome Ireland, University College Cork, Cork T12 YT20, Ireland
- Department of Neonatology, Cork University Maternity Hospital, Cork T12 YE02, Ireland
- INFANT Research Centre, University College Cork, Cork T12 DFK4, Ireland
| | - R. Paul Ross
- APC Microbiome Ireland, University College Cork, Cork T12 YT20, Ireland
| | - Catherine Stanton
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork P61 C996, Ireland
- APC Microbiome Ireland, University College Cork, Cork T12 YT20, Ireland
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Zimmermann P, Curtis N. Breast milk microbiota: A review of the factors that influence composition. J Infect 2020; 81:17-47. [PMID: 32035939 DOI: 10.1016/j.jinf.2020.01.023] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 01/29/2020] [Accepted: 01/30/2020] [Indexed: 01/31/2023]
Abstract
Breastfeeding is associated with considerable health benefits for infants. Aside from essential nutrients, immune cells and bioactive components, breast milk also contains a diverse range of microbes, which are important for maintaining mammary and infant health. In this review, we summarise studies that have investigated the composition of the breast milk microbiota and factors that might influence it. We identified 44 studies investigating 3105 breast milk samples from 2655 women. Several studies reported that the bacterial diversity is higher in breast milk than infant or maternal faeces. The maximum number of each bacterial taxonomic level detected per study was 58 phyla, 133 classes, 263 orders, 596 families, 590 genera, 1300 species and 3563 operational taxonomic units. Furthermore, fungal, archaeal, eukaryotic and viral DNA was also detected. The most frequently found genera were Staphylococcus, Streptococcus Lactobacillus, Pseudomonas, Bifidobacterium, Corynebacterium, Enterococcus, Acinetobacter, Rothia, Cutibacterium, Veillonella and Bacteroides. There was some evidence that gestational age, delivery mode, biological sex, parity, intrapartum antibiotics, lactation stage, diet, BMI, composition of breast milk, HIV infection, geographic location and collection/feeding method influence the composition of the breast milk microbiota. However, many studies were small and findings sometimes contradictory. Manipulating the microbiota by adding probiotics to breast milk or artificial milk offers an exciting avenue for future interventions to improve infant health.
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Affiliation(s)
- Petra Zimmermann
- Department of Paediatrics, Fribourg Hospital HFR and Faculty of Science and Medicine, University of Fribourg, Switzerland; Department of Paediatrics, The University of Melbourne, Parkville, Australia; Infectious Diseases Research Group, Murdoch Children's Research Institute, Parkville, Australia; Infectious Diseases Unit, The Royal Children's Hospital Melbourne, Parkville, Australia.
| | - Nigel Curtis
- Department of Paediatrics, The University of Melbourne, Parkville, Australia; Infectious Diseases Research Group, Murdoch Children's Research Institute, Parkville, Australia; Infectious Diseases Unit, The Royal Children's Hospital Melbourne, Parkville, Australia
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43
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Structural analysis and properties of dextran produced by Weissella confusa and the effect of different cereals on its rheological characteristics. Int J Biol Macromol 2020; 143:305-313. [DOI: 10.1016/j.ijbiomac.2019.12.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 11/15/2019] [Accepted: 12/05/2019] [Indexed: 12/14/2022]
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Van Daele E, Knol J, Belzer C. Microbial transmission from mother to child: improving infant intestinal microbiota development by identifying the obstacles. Crit Rev Microbiol 2019; 45:613-648. [DOI: 10.1080/1040841x.2019.1680601] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Emmy Van Daele
- Laboratory of Microbiology, Wageningen University, Wageningen, The Netherlands
| | - Jan Knol
- Laboratory of Microbiology, Wageningen University, Wageningen, The Netherlands
- Gut Biology and Microbiology, Danone Nutricia Research, Utrecht, The Netherlands
| | - Clara Belzer
- Laboratory of Microbiology, Wageningen University, Wageningen, The Netherlands
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45
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Treven P, Mahnič A, Rupnik M, Golob M, Pirš T, Matijašić BB, Lorbeg PM. Evaluation of Human Milk Microbiota by 16S rRNA Gene Next-Generation Sequencing (NGS) and Cultivation/MALDI-TOF Mass Spectrometry Identification. Front Microbiol 2019; 10:2612. [PMID: 31803156 PMCID: PMC6872673 DOI: 10.3389/fmicb.2019.02612] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 10/28/2019] [Indexed: 12/21/2022] Open
Abstract
The aim of the present study was to characterize human milk microbiota (HMM) with 16S rRNA gene amplicon next-generation sequencing and cultivation/matrix-assisted laser desorption/ionization (MALDI)-time of flight (TOF) mass spectrometry (MS) identification approaches. We analyzed 31 human milk samples from healthy Slovenian mothers. To check the accuracy of MALDI-TOF MS identification, several colonies representing most abundant genera and those, which could not be reliably identified by MALDI-TOF, were subjected to Sanger sequencing of their 16S rRNA gene. We showed that cultivation/MALDI-TOF MS was a suitable tool for culture-dependent determination of HMM. With both approaches, Staphylococcus and Streptococcus were found as predominant genera in HMM and the abundance of Staphylococcus was associated with decreased microbial diversity. In addition, we characterized factors that might influence HMM. The use of a breast pump was significantly associated with composition of HMM, lower microbial load, and higher abundance of cultivable staphylococci. Moreover, our study suggests that administration of probiotics to the suckling infant might influence HMM by increased abundance of lactobacilli and the presence of viable probiotic bacteria in human milk. However, since our study was observational with relatively small sample size, more targeted studies are needed to study possible transfer of probiotics to the mammary gland via an external route and the physiological relevance of these events.
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Affiliation(s)
- Primož Treven
- Department of Animal Science, Biotechnical Faculty, Institute of Dairy Science and Probiotics, University of Ljubljana, Ljubljana, Slovenia
| | - Aleksander Mahnič
- National Laboratory of Health, Environment and Food, Maribor, Slovenia
| | - Maja Rupnik
- National Laboratory of Health, Environment and Food, Maribor, Slovenia
- Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | - Majda Golob
- Faculty of Veterinary Medicine, Institute of Microbiology and Parasitology, University of Ljubljana, Ljubljana, Slovenia
| | - Tina Pirš
- Faculty of Veterinary Medicine, Institute of Microbiology and Parasitology, University of Ljubljana, Ljubljana, Slovenia
| | - Bojana Bogovič Matijašić
- Department of Animal Science, Biotechnical Faculty, Institute of Dairy Science and Probiotics, University of Ljubljana, Ljubljana, Slovenia
| | - Petra Mohar Lorbeg
- Department of Animal Science, Biotechnical Faculty, Institute of Dairy Science and Probiotics, University of Ljubljana, Ljubljana, Slovenia
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46
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Sakwinska O, Bosco N. Host Microbe Interactions in the Lactating Mammary Gland. Front Microbiol 2019; 10:1863. [PMID: 31456777 PMCID: PMC6701204 DOI: 10.3389/fmicb.2019.01863] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 07/29/2019] [Indexed: 12/13/2022] Open
Abstract
The bacteria present in human milk constitute the human milk microbiome (hMM). Both the older culture-based work and the more recent studies using molecular detection of bacterial DNA have reached similar conclusions: the hMM mostly consists of commensal staphylococci such as Staphylococcus epidermidis, and streptococci. The prevalence of other bacterial groups such lactobacilli varies widely, while the abundance and prevalence of bifidobacteria is generally low. Recently, the hMM became accepted as a part of a physiologically normal state with suggested potential health benefits. Most research on the hMM has focused on its composition and potential effect on the breastfed infant. A major role as a microbiome inoculum for the infant gut has been proposed, but remains to be clearly demonstrated. Herein, we also discuss the emerging connection between the hMM and mammary gland physiology and lactation. Similarities between the mammary gland and mucosal interfaces are considerable, and in particular mucosal-like immune attributes of mammary gland. The potential role of hMM-host interactions in the mammary gland in maternal health is explored with a primary focus on lactational mastitis.
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Affiliation(s)
- Olga Sakwinska
- Nestlé Research, Nestlé Institute of Health Sciences, Lausanne, Switzerland
| | - Nabil Bosco
- Nestlé Research, Nestlé Institute of Health Sciences, Lausanne, Switzerland
- Nestlé Research Singapore Hub, Singapore, Singapore
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47
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Ruiz L, Bacigalupe R, García-Carral C, Boix-Amoros A, Argüello H, Silva CB, de Los Angeles Checa M, Mira A, Rodríguez JM. Microbiota of human precolostrum and its potential role as a source of bacteria to the infant mouth. Sci Rep 2019; 9:8435. [PMID: 31182726 PMCID: PMC6557856 DOI: 10.1038/s41598-019-42514-1] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 04/02/2019] [Indexed: 12/21/2022] Open
Abstract
Human milk represents a source of bacteria for the initial establishment of the oral (and gut) microbiomes in the breastfed infant, however, the origin of bacteria in human milk remains largely unknown. While some evidence points towards a possible endogenous enteromammary route, other authors have suggested that bacteria in human milk are contaminants from the skin or the breastfed infant mouth. In this work 16S rRNA sequencing and bacterial culturing and isolation was performed to analyze the microbiota on maternal precolostrum samples, collected from pregnant women before delivery, and on oral samples collected from the corresponding infants. The structure of both ecosystems demonstrated a high proportion of taxa consistently shared among ecosystems, Streptococcus spp. and Staphylococcus spp. being the most abundant. Whole genome sequencing on those isolates that, belonging to the same species, were isolated from both the maternal and infant samples in the same mother-infant pair, evidenced that in 8 out of 10 pairs both isolates were >99.9% identical at nucleotide level. The presence of typical oral bacteria in precolostrum before contact with the newborn indicates that they are not a contamination from the infant, and suggests that at least some oral bacteria reach the infant's mouth through breastfeeding.
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Affiliation(s)
- Lorena Ruiz
- IPLA-CSIC, Department of Microbiology and Biochemistry of Dairy Products, Institute of Dairy Products of Asturias, Villaviciosa, Spain. .,Department of Nutrition and Food Science, Complutense University of Madrid, Avda. Puerta de Hierro, s/n, 28040, Madrid, Spain.
| | - Rodrigo Bacigalupe
- Centro Superior de Investigación en Salud Pública, Fundación FISABIO, Valencia, Spain
| | - Cristina García-Carral
- Department of Nutrition and Food Science, Complutense University of Madrid, Avda. Puerta de Hierro, s/n, 28040, Madrid, Spain.,Probisearch S.L., C/Santiago Grisolía, 2, 28760, Tres Cantos, Spain
| | - Alba Boix-Amoros
- Centro Superior de Investigación en Salud Pública, Fundación FISABIO, Valencia, Spain
| | - Héctor Argüello
- Grupo de Genómica y Mejora Animal, Departamento de Genética, Facultad de Veterinaria, Universidad de Córdoba, Córdoba, Spain
| | - Camilla Beatriz Silva
- Department of Nutrition and Food Science, Complutense University of Madrid, Avda. Puerta de Hierro, s/n, 28040, Madrid, Spain.,Universidade de Uberaba, Uberaba, Brazil
| | | | - Alex Mira
- Centro Superior de Investigación en Salud Pública, Fundación FISABIO, Valencia, Spain.
| | - Juan M Rodríguez
- Department of Nutrition and Food Science, Complutense University of Madrid, Avda. Puerta de Hierro, s/n, 28040, Madrid, Spain.
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Ding M, Qi C, Yang Z, Jiang S, Bi Y, Lai J, Sun J. Geographical location specific composition of cultured microbiota and Lactobacillus occurrence in human breast milk in China. Food Funct 2019; 10:554-564. [PMID: 30681124 DOI: 10.1039/c8fo02182a] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Breast milk bacteria play an important role in the early development of the gut microbiota and the immune system. Dominant living bacteria of 89 healthy Chinese women from 11 cities in five regions were analysed by broad-range yeast extract, casitone, and fatty acid and de Man, Rogosa, and Sharpe-based culturing coupled with 16S rRNA sequence and quantitative polymerase chain reaction. Principal coordinate analysis showed that human breast milk samples were classified into three groups, driven by Enterococcus (abundance in group 1, 63.13%), Streptococcus (abundance in group 2, 68.16%) and Staphylococcus (abundance in group 3, 55.17%). The microbiota profile was highly region-specific. Samples from the Northwest and North of China showed higher alpha diversity compared to other regions (p < 0.05). Staphylococcus, Streptococcus, and Enterococcus were the dominant genera in all samples. Lactobacillus had a high occurrence in samples from the Northwest and North, dominated by Lactobacillus reuteri and Lactobacillus gasseri. Samples of mothers with a high postpartum body mass index showed more Staphylococcus and less Lactobacillus and Streptococcus. Staphylococcus was negatively correlated with Lactobacillus and Streptococcus. The mode of delivery also affected the composition of microbiota, even after culture. These findings indicate differences between the North and South, provide effective information for collection of samples in which Lactobacillus is the predominant genus, and lower the detection limit for small amounts of bacteria.
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Affiliation(s)
- Mengfan Ding
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.
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Bagci U, Ozmen Togay S, Temiz A, Ay M. Probiotic characteristics of bacteriocin-producing Enterococcus faecium strains isolated from human milk and colostrum. Folia Microbiol (Praha) 2019; 64:735-750. [PMID: 30739237 DOI: 10.1007/s12223-019-00687-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 01/28/2019] [Indexed: 01/27/2023]
Abstract
As potential probiotic traits of human milk-isolated bacteria have increasingly been recognized, this study aimed to evaluate the probiotic properties of bacteriocin-producing Enterococcus faecium strains isolated from human milk and colostrum. Among 118 human milk- and colostrum-isolated lactic cocci, only 29 were identified as Enterococcus. Of these, only four Enterococcus faecium isolates exhibited bacteriocigenic activity against several pathogenic Gram-positive bacteria, including Listeria monocytogenes. These isolates exhibited high acid (up to pH 3.0) and bile tolerance (0.5% oxgall) in simulated gastrointestinal conditions, demonstrating their ability to survive through the upper gastrointestinal tract. All of the E. faecium strains were shown to be sensitive to most of the antibiotics including vancomycin, tetracycline, rifampicin, and erythromycin, while they were resistant to kanamycin and chloramphenicol. None of the strains showed any virulence (gelE, agg2, clyA, clyB, clyM) and antibiotic resistance genes (vanA, vanB, ermB, tetM, and aac(6')-le-aph(2″)-la). In addition, all the strains were able to assimilate cholesterol, ranging between 25.2-64.1% and they exhibited variable adherence (19-36%) to Caco-2 cells. Based on the overall results of this in vitro study, four of the E. faecium strains isolated from human milk and colostrum can be considered as promising probiotic candidates; however, further in vivo evaluations are required.
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Affiliation(s)
- Ufuk Bagci
- Department of Food Engineering, Faculty of Engineering, Trakya University, 22180, Edirne, Turkey.
| | - Sine Ozmen Togay
- Department of Food Engineering, Uludag University, Bursa, Turkey
| | - Ayhan Temiz
- Department of Food Engineering, Hacettepe University, Ankara, Turkey
| | - Mustafa Ay
- Department of Food Technology, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
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50
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The Detection of Bacteria and Matrix Proteins on Clinically Benign and Pathologic Implants. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2019; 7:e2037. [PMID: 30881821 PMCID: PMC6416121 DOI: 10.1097/gox.0000000000002037] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 09/26/2018] [Indexed: 01/24/2023]
Abstract
Supplemental Digital Content is available in the text. Background: Bacterial contamination of breast implants causes infection, can lead to capsular contracture, and is implicated in breast implant-associated anaplastic large cell lymphoma. Bacteria, however, also colonize clinically benign breast implants and little is known about the biologic signals that trigger the switch from a benign to pathologic state. Methods: Explanted smooth as well as Biocell and Siltex textured breast implants associated with clinically normal and pathologic conditions were analyzed in this observational study. Immunofluorescence and bacterial culture techniques were performed. To avoid sampling bias, implant surfaces >25 sq cm were analyzed. Results: Bacteria were detected on 9 of 22 clinically normal explanted devices or periprosthetic capsules, including 40% of Biocell tissue expanders and 75% of Biocell textured implants. Staphylococcus epidermidis was identified in 67% of the bacteria-positive capsular contractures. Fibrinogen was present on 17 of 18, and collagen on 13 of 18 analyzed breast implants. S. epidermidis co-localized with collagen, while group B streptococci and Klebsiella pneumoniae co-localized with fibrinogen. Conclusions: Bacteria are often detectable on clinically benign breast implants when a multimodal approach is applied to a substantial proportion of the device surface to avoid sampling bias. The impact of bacteria on breast implant pathology should be studied in the presence of an adequate negative control group to account for clinically benign bacteria. Disruption of the interaction of bacteria with matrix proteins coating the surface of breast implants may represent a nonantibiotic strategy for the prevention of breast implant bacterial contamination.
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