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Mao S, Zhao A, Jiang H, Yan J, Zhong W, Xun Y, Zhang Y. Patterns of Human Milk Oligosaccharides in Mature Milk Are Associated with Certain Gut Microbiota in Infants. Nutrients 2024; 16:1287. [PMID: 38732534 PMCID: PMC11085179 DOI: 10.3390/nu16091287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/17/2024] [Accepted: 04/22/2024] [Indexed: 05/13/2024] Open
Abstract
Human milk oligosaccharides (HMOs) are complexes that play a crucial role in shaping the early-life gut microbiota. This study intends to explore whether HMO patterns are associated with the gut microbiota of infants. We included 96 Chinese breastfeeding mother-infant dyads. Breast milk and infant faecal samples were collected and tested. With milk 2'-fucosyllactose, difucosyllactose, and lacto-N-fucopentaose-I as biomarkers, we divided the mothers into secretor and non-secretor groups. HMO patterns were extracted using principal component analysis. The majority (70.7%) of mothers were categorised as secretor and five different HMO patterns were identified. After adjustment, the infants of secretor mothers exhibited a lower relative abundance of Bifidobacterium bifidum (β = -0.245, 95%CI: -0.465~-0.025). An HMO pattern characterised by high levels of 3-fucosyllactose, lacto-N-fucopentaose-III, and lacto-N-neodifucohexaose-II was positively associated with the relative abundance of Bifidobacterium breve (p = 0.014), while the pattern characterised by lacto-N-neotetraose, 6'-sialyllactose, and sialyllacto-N-tetraose-b was negatively associated with Bifidobacterium breve (p = 0.027). The pattern characterised by high levels of monofucosyl-lacto-N-hexaose-III and monofucosyl-lacto-N-neohexaose was positively associated with Bifidobacterium dentium (p = 0.025) and Bifidobacterium bifidum (p < 0.001), respectively. This study suggests that HMO patterns from mature breast milk were associated with certain gut microbiota of breastfed infants.
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Affiliation(s)
- Shuai Mao
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (S.M.); (W.Z.)
| | - Ai Zhao
- Vanke School of Public Health, Tsinghua University, Beijing 100084, China;
| | - Hua Jiang
- School of Nursing, Peking University, Beijing 100091, China;
| | - Jingyu Yan
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China;
| | - Wuxian Zhong
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (S.M.); (W.Z.)
| | - Yiping Xun
- Junlebao Dairy Joint Laboratory of Breast Milk Science and Life Health, Peking University, Beijing 100191, China;
| | - Yumei Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (S.M.); (W.Z.)
- Junlebao Dairy Joint Laboratory of Breast Milk Science and Life Health, Peking University, Beijing 100191, China;
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Lordan C, Roche AK, Delsing D, Nauta A, Groeneveld A, MacSharry J, Cotter PD, van Sinderen D. Linking human milk oligosaccharide metabolism and early life gut microbiota: bifidobacteria and beyond. Microbiol Mol Biol Rev 2024; 88:e0009423. [PMID: 38206006 DOI: 10.1128/mmbr.00094-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024] Open
Abstract
SUMMARYHuman milk oligosaccharides (HMOs) are complex, multi-functional glycans present in human breast milk. They represent an intricate mix of heterogeneous structures which reach the infant intestine in an intact form as they resist gastrointestinal digestion. Therefore, they confer a multitude of benefits, directly and/or indirectly, to the developing neonate. Certain bifidobacterial species, being among the earliest gut colonizers of breast-fed infants, have an adapted functional capacity to metabolize various HMO structures. This ability is typically observed in infant-associated bifidobacteria, as opposed to bifidobacteria associated with a mature microbiota. In recent years, information has been gleaned regarding how these infant-associated bifidobacteria as well as certain other taxa are able to assimilate HMOs, including the mechanistic strategies enabling their acquisition and consumption. Additionally, complex metabolic interactions occur between microbes facilitated by HMOs, including the utilization of breakdown products released from HMO degradation. Interest in HMO-mediated changes in microbial composition and function has been the focal point of numerous studies, in recent times fueled by the availability of individual biosynthetic HMOs, some of which are now commonly included in infant formula. In this review, we outline the main HMO assimilatory and catabolic strategies employed by infant-associated bifidobacteria, discuss other taxa that exhibit breast milk glycan degradation capacity, and cover HMO-supported cross-feeding interactions and related metabolites that have been described thus far.
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Affiliation(s)
- Cathy Lordan
- Teagasc Food Research Centre, Fermoy, Co Cork, Ireland
| | - Aoife K Roche
- APC Microbiome Ireland, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | | | - Arjen Nauta
- FrieslandCampina, Amersfoort, the Netherlands
| | | | - John MacSharry
- APC Microbiome Ireland, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | - Paul D Cotter
- Teagasc Food Research Centre, Fermoy, Co Cork, Ireland
- APC Microbiome Ireland, Cork, Ireland
| | - Douwe van Sinderen
- APC Microbiome Ireland, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
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Padilla L, Fricker AD, Luna E, Choudhury B, Hughes ER, Panzetta ME, Valdivia RH, Flores GE. Mechanism of 2'-fucosyllactose degradation by human-associated Akkermansia. J Bacteriol 2024; 206:e0033423. [PMID: 38299857 PMCID: PMC10886448 DOI: 10.1128/jb.00334-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Accepted: 01/04/2024] [Indexed: 02/02/2024] Open
Abstract
Among the first microorganisms to colonize the human gut of breastfed infants are bacteria capable of fermenting human milk oligosaccharides (HMOs). One of the most abundant HMOs, 2'-fucosyllactose (2'-FL), may specifically drive bacterial colonization of the intestine. Recently, differential growth has been observed across multiple species of Akkermansia on various HMOs including 2'-FL. In culture, we found growth of two species, A. muciniphila MucT and A. biwaensis CSUN-19,on HMOs corresponded to a decrease in the levels of 2'-FL and an increase in lactose, indicating that the first step in 2'-FL catabolism is the cleavage of fucose. Using phylogenetic analysis and transcriptional profiling, we found that the number and expression of fucosidase genes from two glycoside hydrolase (GH) families, GH29 and GH95, vary between these two species. During the mid-log phase of growth, the expression of several GH29 genes was increased by 2'-FL in both species, whereas the GH95 genes were induced only in A. muciniphila. We further show that one putative fucosidase and a β-galactosidase from A. biwaensis are involved in the breakdown of 2'-FL. Our findings indicate that the plasticity of GHs of human-associated Akkermansia sp. enables access to additional growth substrates present in HMOs, including 2'-FL. Our work highlights the potential for Akkermansia to influence the development of the gut microbiota early in life and expands the known metabolic capabilities of this important human symbiont.IMPORTANCEAkkermansia are mucin-degrading specialists widely distributed in the human population. Akkermansia biwaensis has recently been observed to have enhanced growth relative to other human-associated Akkermansia on multiple human milk oligosaccharides (HMOs). However, the mechanisms for enhanced growth are not understood. Here, we characterized the phylogenetic diversity and function of select genes involved in the growth of A. biwaensis on 2'-fucosyllactose (2'-FL), a dominant HMO. Specifically, we demonstrate that two genes in a genomic locus, a putative β-galactosidase and α-fucosidase, are likely responsible for the enhanced growth on 2'-FL. The functional characterization of A. biwaensis growth on 2'-FL delineates the significance of a single genomic locus that may facilitate enhanced colonization and functional activity of select Akkermansia early in life.
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Affiliation(s)
- Loren Padilla
- Department of Biology, California State University, Northridge, California, USA
| | - Ashwana D. Fricker
- Department of Biology, California State University, Northridge, California, USA
| | - Estefani Luna
- Department of Biology, California State University, Northridge, California, USA
| | - Biswa Choudhury
- GlycoAnalytics Core, UC San Diego, Health Sciences, La Jolla, California, USA
| | - Elizabeth R. Hughes
- Department of Integrative Immunobiology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Maria E. Panzetta
- Department of Integrative Immunobiology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Raphael H. Valdivia
- Department of Integrative Immunobiology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Gilberto E. Flores
- Department of Biology, California State University, Northridge, California, USA
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Sun W, Tao L, Qian C, Xue P, Tong X, Yang L, Lu F, Wan H, Tao Y. Human milk oligosaccharides and the association with microbiota in colostrum: a pilot study. Arch Microbiol 2024; 206:58. [PMID: 38191870 PMCID: PMC10774193 DOI: 10.1007/s00203-023-03787-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 10/25/2023] [Accepted: 12/04/2023] [Indexed: 01/10/2024]
Abstract
HMOs (Human milk oligosaccharide) has an impact on maternal and infant health. Colostrum samples of 70 breastfeeding women in China were collected and recorded clinical characteristics. The major oligosaccharides and microbiota were quantitated in colostrum. The concentration of fucosylated HMOs in primipara was higher than that of multipara (p = 0.030). The concentration of N-acetylated HMOs in vaginal delivery milk was less than that of cesarean (p = 0.038). Non-fucosylated HMOs of breastfeeding women were less than that of breast pump (p = 0.038). Meanwhile, the concentration of LNT was positively correlated with Lactobacillus (r = 0.250, p = 0.037). DS-LNT was negatively correlated with Staphylococcus (r = - 0.240, p = 0.045). There was a positive correlation of Streptococcus with LNFP II (r = 0.314, p = 0.011) and 3-SL (r = 0.322, p = 0.009). In addition, there was a negative correlation between 2'-FL and 3-FL (r = - 0.465, p = 0.001). There was a positive correlation between LNT and LNnT (r = 0.778, p = 0.001). Therefore, the concentration of HMOs is related to number of deliveries, delivery mode, lactation mode and perinatal antibiotic. The concentration of HMOs is related to Lactobacillus, Streptococcus and Streptococcus in colostrum. In addition, there are connections between different oligosaccharides in content. The study protocol was also registered in the ClinicalTrails.gov (ChiCTR2200064454) (Oct. 2022).
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Affiliation(s)
- Wen Sun
- Department of Traditional Chinese Medicine, Shanghai Fourth People's Hospital Affiliated to Tongji University, Shanghai, 200434, China
| | - Lin Tao
- Department of Traditional Chinese Medicine, Shanghai Fourth People's Hospital Affiliated to Tongji University, Shanghai, 200434, China
| | - Chen Qian
- Department of Traditional Chinese Medicine, Shanghai Fourth People's Hospital Affiliated to Tongji University, Shanghai, 200434, China
| | - Peipei Xue
- Department of Traditional Chinese Medicine, Shanghai Fourth People's Hospital Affiliated to Tongji University, Shanghai, 200434, China
| | - Xiankun Tong
- Laboratory of Immunopharmacology, Shanghai Institute of Materia Medical, Chinese Academy of Sciences, Shanghai, 201210, China
| | - Li Yang
- Laboratory of Immunopharmacology, Shanghai Institute of Materia Medical, Chinese Academy of Sciences, Shanghai, 201210, China
| | - Fang Lu
- Department of Gynaecology and Obstetrics, Shanghai Fourth People's Hospital Affiliated to Tongji University, Shanghai, 200434, China
| | - Hua Wan
- Department of Breast, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Yingna Tao
- Department of Traditional Chinese Medicine, Shanghai Fourth People's Hospital Affiliated to Tongji University, Shanghai, 200434, China.
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Singh P, Al Mohannadi N, Murugesan S, Almarzooqi F, Kabeer BSA, Marr AK, Kino T, Brummaier T, Terranegra A, McGready R, Nosten F, Chaussabel D, Al Khodor S. Unveiling the dynamics of the breast milk microbiome: impact of lactation stage and gestational age. J Transl Med 2023; 21:784. [PMID: 37932773 PMCID: PMC10629158 DOI: 10.1186/s12967-023-04656-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 10/24/2023] [Indexed: 11/08/2023] Open
Abstract
BACKGROUND Breast milk (BM) provides complete nutrition for infants for the first six months of life and is essential for the development of the newborn's immature immune and digestive systems. While BM was conventionally believed to be sterile, recent advanced high throughput technologies have unveiled the presence of diverse microbial communities in BM. These insights into the BM microbiota have mainly originated from uncomplicated pregnancies, possibly not reflecting the circumstances of mothers with pregnancy complications like preterm birth (PTB). METHODS In this article, we investigated the BM microbial communities in mothers with preterm deliveries (before 37 weeks of gestation). We compared these samples with BM samples from healthy term pregnancies across different lactation stages (colostrum, transitional and mature milk) using 16S rRNA gene sequencing. RESULTS Our analysis revealed that the microbial communities became increasingly diverse and compositionally distinct as the BM matured. Specifically, mature BM samples were significantly enriched in Veillonella and lactobacillus (Kruskal Wallis; p < 0.001) compared to colostrum. The comparison of term and preterm BM samples showed that the community structure was significantly different between the two groups (Bray Curtis and unweighted unifrac dissimilarity; p < 0.001). Preterm BM samples exhibited increased species richness with significantly higher abundance of Staphylococcus haemolyticus, Propionibacterium acnes, unclassified Corynebacterium species. Whereas term samples were enriched in Staphylococcus epidermidis, unclassified OD1, and unclassified Veillonella among others. CONCLUSION Our study underscores the significant influence of pregnancy-related complications, such as preterm birth (before 37 weeks of gestation), on the composition and diversity of BM microbiota. Given the established significance of the maternal microbiome in shaping child health outcomes, this investigation paves the way for identifying modifiable factors that could optimize the composition of BM microbiota, thereby promoting maternal and infant health.
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Affiliation(s)
- Parul Singh
- College of Health and Life Sciences, Hamad Bin Khalifa University, Doha, Qatar
- Research Department, Sidra Medicine, Doha, Qatar
| | | | | | | | | | | | | | - Tobias Brummaier
- Shoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand
| | | | - Rose McGready
- Shoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - François Nosten
- Shoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Damien Chaussabel
- Research Department, Sidra Medicine, Doha, Qatar
- The Jackson Laboratories, Farmington, CT, USA
| | - Souhaila Al Khodor
- College of Health and Life Sciences, Hamad Bin Khalifa University, Doha, Qatar.
- Research Department, Sidra Medicine, Doha, Qatar.
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6
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Padilla L, Fricker AD, Luna E, Choudhury B, Hughes ER, Panzetta ME, Valdivia RH, Flores GE. Mechanism of 2'-Fucosyllactose degradation by Human-Associated Akkermansia. bioRxiv 2023:2023.10.17.562767. [PMID: 37904935 PMCID: PMC10614881 DOI: 10.1101/2023.10.17.562767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2023]
Abstract
Among the first microorganisms to colonize the human gut of breastfed infants are bacteria capable of fermenting human milk oligosaccharides (HMOs). One of the most abundant HMOs, 2'-fucosyllactose (2'-FL), may specifically drive bacterial colonization of the intestine. Recently, differential growth has been observed across multiple species of Akkermansia on various HMOs including 2'FL. In culture, we found growth of two species, A. muciniphila Muc T and A. biwaensis CSUN-19, in HMOS corresponded to a decrease in the levels of 2'-FL and an increase in lactose, indicating that the first step in 2'-FL catabolism is the cleavage of fucose. Using phylogenetic analysis and transcriptional profiling, we found that the number and expression of fucosidase genes from two glycoside hydrolase (GH) families, GH29 and GH95, varies between these two species. During mid-log phase growth, the expression of several GH29 genes was increased by 2'-FL in both species, whereas the GH95 genes were induced only in A. muciniphila . We further show that one putative fucosidase and a β-galactosidase from A. biwaensis are involved in the breakdown of 2'-FL. Our findings indicate that that plasticity of GHs of human associated Akkermansia sp. enable access to additional growth substrates present in HMOs, including 2'-FL. Our work highlights the potential for Akkermansia to influence the development of the gut microbiota early in life and expands the known metabolic capabilities of this important human symbiont. IMPORTANCE Akkermansia are mucin degrading specialists widely distributed in the human population. Akkermansia biwaensis has recently been observed to have enhanced growth relative to other human associated Akkermansia on multiple human milk oligosaccharides (HMOs). However, the mechanisms for enhanced growth are not understood. Here, we characterized the phylogenetic diversity and function of select genes involved in growth of A. biwaensis on 2'-fucosyllactose (2'-FL), a dominant HMO. Specifically, we demonstrate that two genes in a genomic locus, a putative β-galactosidase and α-fucosidase, are likely responsible for the enhanced growth on 2'-FL. The functional characterization of A. biwaensis growth on 2'-FL delineates the significance of a single genomic locus that may facilitate enhanced colonization and functional activity of select Akkermansia early in life.
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Zhao S, Lok KYW, Sin ZY, Peng Y, Fan HSL, Nagesh N, Choi MSL, Kwok JYY, Choi EPH, Zhang X, Wai HKF, Tsang LCH, Cheng SSM, Wong MKL, Zhu J, Mok CKP, Ng SC, Chan FKL, Peiris M, Poon LLM, Tun HM. COVID-19 mRNA vaccine-mediated antibodies in human breast milk and their association with breast milk microbiota composition. NPJ Vaccines 2023; 8:151. [PMID: 37798293 PMCID: PMC10556030 DOI: 10.1038/s41541-023-00745-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 09/19/2023] [Indexed: 10/07/2023] Open
Abstract
Newborns can acquire immunological protection to SARS-CoV-2 through vaccine-conferred antibodies in human breast milk. However, there are some concerns around lactating mothers with regards to potential short- and long-term adverse events and vaccine-induced changes to their breast milk microbiome composition, which helps shape the early-life microbiome. Thus, we sought to explore if SARS-CoV-2 mRNA vaccine could change breast milk microbiota and how the changes impact the levels of antibodies in breast milk. We recruited 49 lactating mothers from Hong Kong who received two doses of BNT162b2 vaccine between June 2021 and August 2021. Breast milk samples were self-collected by participants pre-vaccination, one week post-first dose, one week post-second dose, and one month post-second dose. The levels of SARS-CoV-2 spike-specific IgA and IgG in breast milk peaked at one week post-second dose. Subsequently, the levels of both antibodies rapidly waned in breast milk, with IgA levels returning to baseline levels one month post-second dose. The richness and composition of human breast milk microbiota changed dynamically throughout the vaccination regimen, but the abundances of beneficial microbes such as Bifidobacterium species did not significantly change after vaccination. Additionally, we found that baseline breast milk bacterial composition can predict spike-specific IgA levels at one week post-second dose (Area Under Curve: 0.72, 95% confidence interval: 0.58-0.85). Taken together, our results identified specific breast milk microbiota markers associated with high levels of IgA in the breast milk following BNT162b2 vaccine. Furthermore, in lactating mothers, BNT162b2 vaccines did not significantly reduce probiotic species in breast milk.
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Affiliation(s)
- Shilin Zhao
- Microbiota I-Center (MagIC), Hong Kong SAR, China
- Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Kris Y W Lok
- School of Nursing, The University of Hong Kong, Hong Kong, China.
| | - Zhen Y Sin
- The Jockey Club School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Ye Peng
- Microbiota I-Center (MagIC), Hong Kong SAR, China
- The Jockey Club School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Heidi S L Fan
- School of Nursing, The University of Hong Kong, Hong Kong, China
| | - Nitya Nagesh
- School of Nursing, The University of Hong Kong, Hong Kong, China
| | - Martha S L Choi
- School of Nursing, The University of Hong Kong, Hong Kong, China
| | - Jojo Y Y Kwok
- School of Nursing, The University of Hong Kong, Hong Kong, China
| | - Edmond P H Choi
- School of Nursing, The University of Hong Kong, Hong Kong, China
| | - Xi Zhang
- The Jockey Club School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Hogan Kok-Fung Wai
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- HKU-Pasteur Research Pole, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Leo C H Tsang
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Samuel S M Cheng
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | | | - Jie Zhu
- Microbiota I-Center (MagIC), Hong Kong SAR, China
| | - Chris K P Mok
- The Jockey Club School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Siew C Ng
- Microbiota I-Center (MagIC), Hong Kong SAR, China
- Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, State Key Laboratory of Digestive Disease, Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Francis K L Chan
- Microbiota I-Center (MagIC), Hong Kong SAR, China
- Centre for Gut Microbiota Research, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Malik Peiris
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- HKU-Pasteur Research Pole, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Leo L M Poon
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- HKU-Pasteur Research Pole, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Hein M Tun
- Microbiota I-Center (MagIC), Hong Kong SAR, China.
- The Jockey Club School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China.
- Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China.
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8
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Andres SF, Zhang Y, Kuhn M, Scottoline B. Building better barriers: how nutrition and undernutrition impact pediatric intestinal health. Front Immunol 2023; 14:1192936. [PMID: 37545496 PMCID: PMC10401430 DOI: 10.3389/fimmu.2023.1192936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 06/26/2023] [Indexed: 08/08/2023] Open
Abstract
Chronic undernutrition is a major cause of death for children under five, leaving survivors at risk for adverse long-term consequences. This review focuses on the role of nutrients in normal intestinal development and function, from the intestinal epithelium, to the closely-associated mucosal immune system and intestinal microbiota. We examine what is known about the impacts of undernutrition on intestinal physiology, with focus again on the same systems. We provide a discussion of existing animal models of undernutrition, and review the evidence demonstrating that correcting undernutrition alone does not fully ameliorate effects on intestinal function, the microbiome, or growth. We review efforts to treat undernutrition that incorporate data indicating that improved recovery is possible with interventions focused not only on delivery of sufficient energy, macronutrients, and micronutrients, but also on efforts to correct the abnormal intestinal microbiome that is a consequence of undernutrition. Understanding of the role of the intestinal microbiome in the undernourished state and correction of the phenotype is both complex and a subject that holds great potential to improve recovery. We conclude with critical unanswered questions in the field, including the need for greater mechanistic research, improved models for the impacts of undernourishment, and new interventions that incorporate recent research gains. This review highlights the importance of understanding the mechanistic effects of undernutrition on the intestinal ecosystem to better treat and improve long-term outcomes for survivors.
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Affiliation(s)
- Sarah F. Andres
- Division of Pediatric Gastroenterology, Department of Pediatrics, Oregon Health and Science University, Portland, OR, United States
| | - Yang Zhang
- Division of Pediatric Gastroenterology, Department of Pediatrics, Oregon Health and Science University, Portland, OR, United States
| | - Madeline Kuhn
- Division of Pediatric Gastroenterology, Department of Pediatrics, Oregon Health and Science University, Portland, OR, United States
| | - Brian Scottoline
- Division of Neonatology, Department of Pediatrics, Oregon Health and Science University, Portland, OR, United States
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9
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Abstract
Abnormal microbial colonization in the gut at an early stage of life affects growth, development, and health, resulting in short- and long-term adverse effects. Microbial colonization patterns of preterm infants differ from those of full-term infants in that preterm babies and their mothers have more complicated prenatal and postnatal medical conditions. Maternal complications, antibiotic exposure, delivery mode, feeding type, and the use of probiotics may significantly shape the gut microbiota of preterm infants at an early stage of life; however, these influences subside with age. Although some factors and processes are difficult to intervene in or avoid, understanding the potential factors and determinants will help in developing timely strategies for a healthy gut microbiota in preterm infants. This review discusses potential determinants of gut microbial colonization in preterm infants and their underlying mechanisms.
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Affiliation(s)
- Xiaoyu Chen
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, 110000, China
| | - Yongyan Shi
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, 110000, China.
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10
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Reniker LN, Frazer LC, Good M. Key biologically active components of breast milk and their beneficial effects. Semin Pediatr Surg 2023; 32:151306. [PMID: 37276783 DOI: 10.1016/j.sempedsurg.2023.151306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Maternal breast milk is the penultimate nutritional source for term and preterm neonates. Its composition is highly complex and includes multiple factors that enhance the development of nearly every neonatal organ system leading to both short- and long-term health benefits. Intensive research is focused on identifying breast milk components that enhance infant health. However, this research is complicated by the significant impact of maternal factors and the processing of pumped breast milk on bioactive ingredients. Optimizing enteral nutrition is particularly important for preterm neonates who miss the transplacental acquisition of nutrients in the third trimester of pregnancy and are at risk for illnesses associated with gut barrier dysfunction, including sepsis and necrotizing enterocolitis. In this review, we will discuss the health benefits of breast milk and its bioactive components.
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Affiliation(s)
- Laura N Reniker
- Division of Neonatal-Perinatal Medicine, Department of Pediatrics, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA, 27599
| | - Lauren C Frazer
- Division of Neonatal-Perinatal Medicine, Department of Pediatrics, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA, 27599
| | - Misty Good
- Division of Neonatal-Perinatal Medicine, Department of Pediatrics, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA, 27599.
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11
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Zhang Y, Chen R, Zhang D, Qi S, Liu Y. Metabolite interactions between host and microbiota during health and disease: Which feeds the other? Biomed Pharmacother 2023; 160:114295. [PMID: 36709600 DOI: 10.1016/j.biopha.2023.114295] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/20/2023] [Accepted: 01/20/2023] [Indexed: 01/30/2023] Open
Abstract
Metabolites produced by the host and microbiota play a crucial role in how human bodies develop and remain healthy. Most of these metabolites are produced by microbiota and hosts in the digestive tract. Metabolites in the gut have important roles in energy metabolism, cellular communication, and host immunity, among other physiological activities. Although numerous host metabolites, such as free fatty acids, amino acids, and vitamins, are found in the intestine, metabolites generated by gut microbiota are equally vital for intestinal homeostasis. Furthermore, microbiota in the gut is the sole source of some metabolites, including short-chain fatty acids (SCFAs). Metabolites produced by microbiota, such as neurotransmitters and hormones, may modulate and significantly affect host metabolism. The gut microbiota is becoming recognized as a second endocrine system. A variety of chronic inflammatory disorders have been linked to aberrant host-microbiota interplays, but the precise mechanisms underpinning these disturbances and how they might lead to diseases remain to be fully elucidated. Microbiome-modulated metabolites are promising targets for new drug discovery due to their endocrine function in various complex disorders. In humans, metabolotherapy for the prevention or treatment of various disorders will be possible if we better understand the metabolic preferences of bacteria and the host in specific tissues and organs. Better disease treatments may be possible with the help of novel complementary therapies that target host or bacterial metabolism. The metabolites, their physiological consequences, and functional mechanisms of the host-microbiota interplays will be highlighted, summarized, and discussed in this overview.
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Affiliation(s)
- Yan Zhang
- Department of Anethesiology, China-Japan Union Hospital of Jilin University, Changchun 130033, People's Republic of China.
| | - Rui Chen
- Department of Pediatrics, China-Japan Union Hospital of Jilin University, Changchun 130033, People's Republic of China.
| | - DuoDuo Zhang
- Department of Thoracic Surgery, The First Hospital of Jilin University, Changchun, Jilin Province 130021, People's Republic of China.
| | - Shuang Qi
- Department of Anethesiology, China-Japan Union Hospital of Jilin University, Changchun 130033, People's Republic of China.
| | - Yan Liu
- Department of Hand and Foot Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, People's Republic of China.
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12
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Xu R, Zhang Y, Chen S, Zeng Y, Fu X, Chen T, Luo S, Zhang X. The role of the probiotic Akkermansia muciniphila in brain functions: insights underpinning therapeutic potential. Crit Rev Microbiol 2023; 49:151-176. [PMID: 35272549 DOI: 10.1080/1040841x.2022.2044286] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The role of Akkermansia muciniphila, one of the most abundant microorganisms of the intestinal microbiota, has been studied extensively in metabolic diseases, such as obesity and diabetes. It is considered a next-generation probiotic microorganism. Although its mechanism of action has not been fully elucidated, accumulating evidence indicates the important role of A. muciniphila in brain functions via the gut-brain axis and its potential as a therapeutic target in various neuropsychiatric disorders. However, only a limited number of studies, particularly clinical studies, have directly assessed the therapeutic effects of A. muciniphila interventions in these disorders. This is the first review to discuss the comprehensive mechanism of A. muciniphila in the gut-brain axis via the protection of the intestinal mucosal barrier and modulation of the immune system and metabolites, such as short-chain fatty acids, amino acids, and amino acid derivatives. Additionally, the role of A. muciniphila and its therapeutic potential in various neuropsychiatric disorders, including Alzheimer's disease and cognitive deficit, amyotrophic lateral sclerosis, Parkinson's disease, and multiple sclerosis, have been discussed. The review suggests the potential role of A. muciniphila in healthy brain functions.
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Affiliation(s)
- Ruiling Xu
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinic Research Center for Mental Disorders, Changsha, Hunan, China.,National Technology Institute on Mental Disorders, Changsha, Hunan, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, Hunan, China.,Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha, China
| | - Yuxuan Zhang
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinic Research Center for Mental Disorders, Changsha, Hunan, China.,National Technology Institute on Mental Disorders, Changsha, Hunan, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, Hunan, China.,Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha, China
| | - Shurui Chen
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinic Research Center for Mental Disorders, Changsha, Hunan, China.,National Technology Institute on Mental Disorders, Changsha, Hunan, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, Hunan, China.,Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha, China
| | - Yaohui Zeng
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinic Research Center for Mental Disorders, Changsha, Hunan, China.,National Technology Institute on Mental Disorders, Changsha, Hunan, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, Hunan, China.,Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha, China
| | - Xuan Fu
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinic Research Center for Mental Disorders, Changsha, Hunan, China.,National Technology Institute on Mental Disorders, Changsha, Hunan, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, Hunan, China.,Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha, China
| | - Ti Chen
- Clinical Laboratory, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shilin Luo
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiaojie Zhang
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinic Research Center for Mental Disorders, Changsha, Hunan, China.,National Technology Institute on Mental Disorders, Changsha, Hunan, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, Hunan, China.,Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha, China
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13
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Lundgren SN, Madan JC, Karagas MR, Morrison HG, Christensen BC, Hoen AG. Human milk-associated bacterial communities associate with the infant gut microbiome over the first year of life. Front Microbiol 2023; 14:1164553. [PMID: 37138613 PMCID: PMC10149717 DOI: 10.3389/fmicb.2023.1164553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 03/27/2023] [Indexed: 05/05/2023] Open
Abstract
Introduction Microbial communities inhabiting the human infant gut are important for immune system development and lifelong health. One critical exposure affecting the bacterial colonization of the infant gut is consumption of human milk, which contains diverse microbial communities and prebiotics. We hypothesized that human milk-associated microbial profiles are associated with those of the infant gut. Methods Maternal-infant dyads enrolled in the New Hampshire Birth Cohort Study (n = 189 dyads) contributed breast milk and infant stool samples collected approximately at 6 weeks, 4 months, 6 months, 9 months, and 12 months postpartum (n = 572 samples). Microbial DNA was extracted from milk and stool and the V4-V5 region of the bacterial 16S rRNA gene was sequenced. Results Clustering analysis identified three breast milk microbiome types (BMTs), characterized by differences in Streptococcus, Staphylococcus, Pseudomonas, Acinetobacter, and microbial diversity. Four 6-week infant gut microbiome types (6wIGMTs) were identified, differing in abundances of Bifidobacterium, Bacteroides, Clostridium, Streptococcus, and Escherichia/Shigella, while two 12-month IGMTs (12mIGMTs) differed primarily by Bacteroides presence. At 6 weeks, BMT was associated with 6wIGMT (Fisher's exact test value of p = 0.039); this association was strongest among infants delivered by Cesarean section (Fisher's exact test value of p = 0.0028). The strongest correlations between overall breast milk and infant stool microbial community structures were observed when comparing breast milk samples to infant stool samples collected at a subsequent time point, e.g., the 6-week breast milk microbiome associated with the 6-month infant gut microbiome (Mantel test Z-statistic = 0.53, value of p = 0.001). Streptoccous and Veillonella species abundance were correlated in 6-week milk and infant stool, and 4- and 6-month milk Pantoea species were associated with infant stool Lachnospiraceae genera at 9 and 12 months. Discussion We identified clusters of human milk and infant stool microbial communities that were associated in maternal-infant dyads at 6 weeks of life and found that milk microbial communities were more strongly associated with infant gut microbial communities in infants delivered operatively and after a lag period. These results suggest that milk microbial communities have a long-term effect on the infant gut microbiome both through sharing of microbes and other molecular mechanisms.
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Affiliation(s)
- Sara N. Lundgren
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Lebanon, NH, United States
| | - Juliette C. Madan
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Lebanon, NH, United States
- Department of Pediatrics, Children’s Hospital at Dartmouth, Lebanon, NH, United States
- Department of Psychiatry, Children’s Hospital at Dartmouth, Lebanon, NH, United States
| | - Margaret R. Karagas
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Lebanon, NH, United States
- Department of Community and Family Medicine, Geisel School of Medicine at Dartmouth, Lebanon, NH, United States
| | - Hilary G. Morrison
- Josephine Bay Paul Center, Marine Biological Laboratory, Woods Hole, MA, United States
| | - Brock C. Christensen
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Lebanon, NH, United States
- Department of Community and Family Medicine, Geisel School of Medicine at Dartmouth, Lebanon, NH, United States
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Hanover, NH, United States
- *Correspondence: Brock C. Christensen,
| | - Anne G. Hoen
- Department of Epidemiology, Geisel School of Medicine at Dartmouth, Lebanon, NH, United States
- Department of Biomedical Data Science, Geisel School of Medicine at Dartmouth, Lebanon, NH, United States
- Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Lebanon, NH, United States
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14
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Sindi AS, Cheema AS, Trevenen ML, Geddes DT, Payne MS, Stinson LF. Characterisation of human milk bacterial DNA profiles in a small cohort of Australian women in relation to infant and maternal factors. PLoS One 2023; 18:e0280960. [PMID: 36696407 PMCID: PMC9876237 DOI: 10.1371/journal.pone.0280960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 01/11/2023] [Indexed: 01/26/2023] Open
Abstract
Human milk is composed of complex microbial and non-microbial components that shape the infant gut microbiome. Although several maternal and infant factors have been associated with human milk microbiota, no study has investigated this in an Australian population. Therefore, we aimed to investigate associations between human milk bacterial composition of Australian women and maternal factors (body mass index (BMI), mode of delivery, breast pump use, allergy, parity) and infant factors (sex, mode of feeding, pacifier use, and introduction of solids). Full-length 16S rRNA gene sequencing was used to characterise milk bacterial DNA profiles. Milk from mothers with a normal BMI had a higher relative abundance of Streptococcus australis than that of underweight mothers, while milk from overweight mothers had a higher relative abundance of Streptococcus salivarius compared with underweight and obese mothers. Mothers who delivered vaginally had a higher relative abundance of Streptococcus mitis in their milk compared to those who delivered via emergency caesarean section. Milk of mothers who used a breast pump had a higher relative abundance of Staphylococcus epidermidis and Streptococcus parasanguinis. Milk of mothers whose infants used a pacifier had a higher relative abundance of S. australis and Streptococcus gwangjuense. Maternal BMI, mode of delivery, breast pump use, and infant pacifier use are associated with the bacterial composition of human milk in an Australian cohort. The data from this pilot study suggests that both mother and infant can contribute to the human milk microbiome.
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Affiliation(s)
- Azhar S Sindi
- Division of Obstetrics and Gynaecology, School of Medicine, The University of Western Australia, Perth, Western Australia, Australia.,College of Applied Medical Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Ali S Cheema
- School of Molecular Sciences, The University of Western Australia, Perth, Western Australia, Australia
| | - Michelle L Trevenen
- Centre for Applied Statistics, The University of Western Australia, Perth, Western Australia, Australia
| | - Donna T Geddes
- School of Molecular Sciences, The University of Western Australia, Perth, Western Australia, Australia
| | - Matthew S Payne
- Division of Obstetrics and Gynaecology, School of Medicine, The University of Western Australia, Perth, Western Australia, Australia.,Women and Infants Research Foundation, Perth, Western Australia, Australia
| | - Lisa F Stinson
- School of Molecular Sciences, The University of Western Australia, Perth, Western Australia, Australia
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15
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Abstract
Human milk oligosaccharides (HMOs) are the third most important solid component in human milk and act in tandem with other bioactive components. Individual HMO levels and distribution vary greatly between mothers by multiple variables, such as secretor status, race, geographic region, environmental conditions, season, maternal diet, and weight, gestational age and mode of delivery. HMOs improve the gastrointestinal barrier and also promote a bifidobacterium-rich gut microbiome, which protects against infection, strengthens the epithelial barrier, and creates immunomodulatory metabolites. HMOs fulfil a variety of physiologic functions including potential support to the immune system, brain development, and cognitive function. Supplementing infant formula with HMOs is safe and promotes a healthy development of the infant revealing benefits for microbiota composition and infection prevention. Because of limited data comparing the effect of non-human oligosaccharides to HMOs, it is not known if HMOs offer an additional clinical benefit over non-human oligosaccharides. Better knowledge of the factors influencing HMO composition and their functions will help to understand their short- and long-term benefits.
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Affiliation(s)
- Meltem Dinleyici
- Department of Social Pediatrics, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, Turkey
| | - Jana Barbieur
- UZ Brussel, KidZ Health Castle, Vrije Unversiteit Brussel, Brussels, Belgium
| | - Ener Cagri Dinleyici
- Department of Pediatrics, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, Turkey
| | - Yvan Vandenplas
- UZ Brussel, KidZ Health Castle, Vrije Unversiteit Brussel, Brussels, Belgium
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16
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Ma J, Palmer DJ, Geddes D, Lai CT, Stinson L. Human Milk Microbiome and Microbiome-Related Products: Potential Modulators of Infant Growth. Nutrients 2022; 14. [PMID: 36501178 DOI: 10.3390/nu14235148] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/25/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022] Open
Abstract
Infant growth trajectory may influence later-life obesity. Human milk provides a wide range of nutritional and bioactive components that are vital for infant growth. Compared to formula-fed infants, breastfed infants are less likely to develop later-onset obesity, highlighting the potential role of bioactive components present in human milk. Components of particular interest are the human milk microbiota, human milk oligosaccharides (HMOs), short-chain fatty acids (SCFAs), and antimicrobial proteins, each of which influence the infant gut microbiome, which in turn has been associated with infant body composition. SCFAs and antimicrobial proteins from human milk may also systemically influence infant metabolism. Although inconsistent, multiple studies have reported associations between HMOs and infant growth, while studies on other bioactive components in relation to infant growth are sparse. Moreover, these microbiome-related components may interact with each other within the mammary gland. Here, we review the evidence around the impact of human milk microbes, HMOs, SCFAs, and antimicrobial proteins on infant growth. Breastfeeding is a unique window of opportunity to promote optimal infant growth, with aberrant growth trajectories potentially creating short- and long-term public health burdens. Therefore, it is important to understand how bioactive components of human milk influence infant growth.
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17
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Ye J, Wu Z, Zhao Y, Zhang S, Liu W, Su Y. Role of gut microbiota in the pathogenesis and treatment of diabetes mullites: Advanced research-based review. Front Microbiol 2022; 13:1029890. [PMID: 36338058 PMCID: PMC9627042 DOI: 10.3389/fmicb.2022.1029890] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 09/26/2022] [Indexed: 02/05/2023] Open
Abstract
Gut microbiota plays an important role in the proper functioning of human organisms, while its dysbiosis is associated with disease in various body organs. Diabetes mellitus (DM) is a set of heterogeneous metabolic diseases characterized by hyperglycemia caused by direct or indirect insulin deficiency. There is growing evidence that gut microbiota dysbiosis is closely linked to the development of DM. Gut microbiota composition changes in type 1 diabetes mullites (T1DM) and type 2 diabetes mullites (T2DM) patients, which may cause gut leakiness and uncontrolled entry of antigens into the circulation system, triggering an immune response that damages the isle β cells or metabolic disorders. This review summarizes gut microbiota composition in healthy individuals and compares it to diabetes mullites patients. The possible pathogenesis by which gut microbiota dysbiosis causes DM, particularly gut leakiness and changes in gut microbiota metabolites is also discussed. It also presents the process of microbial-based therapies of DM.
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Affiliation(s)
- Junjun Ye
- Department of Endocrine and Metabolic Diseases, Longhu Hospital, The First Affiliated Hospital of Shantou University Medical College, Shantou, China
- Shantou University Medical College, Shantou, China
| | - Zezhen Wu
- Department of Endocrine and Metabolic Diseases, Longhu Hospital, The First Affiliated Hospital of Shantou University Medical College, Shantou, China
- The First Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Yifei Zhao
- School of Nursing, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Shuo Zhang
- Department of Endocrine and Metabolic Diseases, Longhu Hospital, The First Affiliated Hospital of Shantou University Medical College, Shantou, China
- The First Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Weiting Liu
- School of Nursing, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Yu Su
- Center of Teaching Evaluation and Faculty Development, Anhui University of Chinese Medicine, Hefei, China
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18
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Du Y, Qiu Q, Cheng J, Huang Z, Xie R, Wang L, Wang X, Han Z, Jin G. Comparative study on the microbiota of colostrum and nipple skin from lactating mothers separated from their newborn at birth in China. Front Microbiol 2022; 13:932495. [PMID: 36262322 PMCID: PMC9574262 DOI: 10.3389/fmicb.2022.932495] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 09/02/2022] [Indexed: 11/13/2022] Open
Abstract
Increasing studies have found breast milk (BM) contains its own microbiota. However, the route through which microbes enter the BM is still unclear. In order to verify the entero-mammary pathway of BM, we designed a rigorous study that prevented oral bacteria from contaminating the breast and nipple skin (NS) during baby nursing. Thirty-one healthy, postpartum mothers living in southern China who were immediately separated from their newborn after delivery were enrolled in this study. Using an aseptic protocol for sampling, sterile water was used to wash the NS and was then collected. Then the first drop of BM was discarded and colostrum was collected manually. Amplicon sequencing was performed targeting the V3–V4 region of the bacterial 16S rRNA gene, and the differences between the microbiota of the colostrum and NS were analyzed. Additionally, the effects of environmental factors, such as the delivery mode and intrapartum antibiotic exposure, on the diversity of the colostrum microbiota were also analyzed. We found significant differences in the α diversity and richness between the BM and NS as evidenced by richness, Chao1, and Simpson indices. There were 170 operational taxonomic units (OTUs) shared by colostrum and NS, while 111 and 87 OTUs were unique, respectively, as well as a clear distinction in OTUs was observed by unifrac binary analysis between them. Linear discriminant analysis effect size analysis found that anaerobes, such as Bifidobacterium and Pantoea at the genus level and enterobacteria including Enterobacteriaceae at the family level, were predominant in the colostrum, while the predominant bacteria on the NS were Bacteroides, Staphylococcus, and Parabacteroides at the genus level. BM is colonized by bacteria prior to baby suckling, and the diversity of the colostrum microbiota differs from that of the NS. The predominant microbiota taxa in BM indicated that they were likely to be transferred to the breast through the intestinal tract. Our study provides direct evidence for the revolutionary active migration hypothesis. Additionally, factors like intrapartum antibiotic exposure did not significantly affect the diversity of the microbiota in the BM. Therefore, it is suggested that mothers continue to provide BM for their newborns during separation.
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Affiliation(s)
- Yanli Du
- School of Medical Technology and Nursing, Shenzhen Polytechnic, Shenzhen, China
| | - Qing Qiu
- Department of Women Health Care, Shenzhen Luohu Maternity and Child Healthcare Hospital, Shenzhen, China
| | - Jing Cheng
- Department of Obstetrics, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Zhili Huang
- School of Medical Technology and Nursing, Shenzhen Polytechnic, Shenzhen, China
| | - Ruixia Xie
- School of Medical Technology and Nursing, Shenzhen Polytechnic, Shenzhen, China
| | - Lu Wang
- Delivery Center, Shenzhen Maternity and Child Healthcare Hospital, Shenzhen, China
| | - Xiangyu Wang
- Shenzhen Second People’s Hospital, Department of Gastroenterology, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
- Xiangyu Wang,
| | - Zongli Han
- Department of Neurosurgery, Peking University Shenzhen Hospital, Shenzhen, China
- *Correspondence: Zongli Han,
| | - Gang Jin
- School of Medical Technology and Nursing, Shenzhen Polytechnic, Shenzhen, China
- Gang Jin,
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19
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Stinson LF, Ma J, Sindi AS, Geddes DT. Methodological approaches for studying the human milk microbiome. Nutr Rev 2022; 81:705-715. [PMID: 36130405 DOI: 10.1093/nutrit/nuac082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Human milk contains a low-biomass, low-diversity microbiome, consisting largely of bacteria. This community is of great research interest in the context of infant health and maternal and mammary health. However, this sample type presents many unique methodological challenges. In particular, there are numerous technical considerations relating to sample collection and storage, DNA extraction and sequencing, viability, and contamination. Failure to properly address these challenges may lead to distortion of bacterial DNA profiles generated from human milk samples, ultimately leading to spurious conclusions. Here, these technical challenges are discussed, and various methodological approaches used to address them are analyzed. Data were collected from studies in which a breadth of methodological approaches were used, and recommendations for robust and reproducible analysis of the human milk microbiome are proposed. Such methods will ensure high-quality data are produced in this field, ultimately supporting better research outcomes for mothers and infants.
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Affiliation(s)
- Lisa F Stinson
- School of Molecular Sciences, The University of Western Australia, Perth, Australia
| | - Jie Ma
- School of Molecular Sciences, The University of Western Australia, Perth, Australia
| | - Azhar S Sindi
- Division of Obstetrics and Gynaecology, School of Medicine, The University of Western Australia, Perth, Australia.,is with the College of Applied Medical Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Donna T Geddes
- School of Molecular Sciences, The University of Western Australia, Perth, Australia
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20
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Yi B, Chen H. Power law analysis of the human milk microbiome. Arch Microbiol 2022; 204:585. [PMID: 36048299 DOI: 10.1007/s00203-022-03171-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 06/15/2022] [Accepted: 08/04/2022] [Indexed: 12/01/2022]
Abstract
The human breast milk microbiome (HMM) has far reached health implications for both mothers and infants, and understanding the structure and dynamics of milk microbial communities is therefore of critical biomedical importance. Community heterogeneity, which has certain commonalities with familiar diversity but also with certain fundamental differences, is an important aspect of community structure and dynamics. Taylor's (1961) power law (TPL) (Nature, 1961) was discovered to govern the mean-variance power function relationship of population abundances and can be used to characterize population spatial aggregation (heterogeneity) and/or temporal stability. TPL was further extended to the community level to measure community spatial heterogeneity and/or temporal stability (Ma 2015, Molecular Ecology). Here, we applied TPL extensions (TPLE) to analyze the heterogeneity of the human milk microbiome by reanalyzing 12 datasets (2115 samples) of the healthy human milk microbiome. Our analysis revealed that the TPLE heterogeneity parameter (b) is rather stable across the 12 datasets, and there were approximately no statistically significant differences among ¾ of the datasets, which is consistent with the hypothesis that the heterogeneity scaling (i.e., change across individuals) of the human microbiome, including HMM, is rather stable or even constant. For this, we built a TPLE model for the pooled 12 datasets (b = 1.906), which can therefore represent the scaling rate of community-level spatial heterogeneity of HMM across individuals. Similarly, we also analyzed mixed-species ("averaged virtual species") level heterogeneity of HMM, and it was found that the mixed-species level heterogeneity was smaller than the heterogeneity at the previously mentioned community level (1.620 vs. 1.906).
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Affiliation(s)
- Bin Yi
- Department of Mathematics, Honghe University, Mengzi, Yunnan, China
| | - Hongju Chen
- Department of Mathematics, Honghe University, Mengzi, Yunnan, China.
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21
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Gao W, Xiao M, Gu Z, Fu X, Ren X, Yu Y, Liu Z, Zhu C, Kong Q, Mou H. Genome analysis and 2'-fucosyllactose utilization characteristics of a new Akkermansia muciniphila strain isolated from mice feces. Mol Genet Genomics 2022; 297:1515-1528. [PMID: 35948738 DOI: 10.1007/s00438-022-01937-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 07/29/2022] [Indexed: 11/26/2022]
Abstract
Akkermansia muciniphila is considered to be a next-generation probiotic, and closely related to host metabolism and immune response. Compared with other probiotics, little is known about its genomic analysis. Therefore, further researches about isolating more A. muciniphila strains and exploring functional genes are needed. In the present study, a new strain isolated from mice feces was identified as A. muciniphila (MucX). Whole-genome sequencing and annotation revealed that MucX possesses key genes necessary for human milk oligosaccharides (HMO) utilization, including α-L-fucosidases, β-galactosidases, exo-α-sialidases, and β-acetylhexosaminidases. The complete metabolic pathways for γ-aminobutyric acid and squalene and genes encoding functional proteins, such as the outer membrane protein Amuc_1100, were annotated in the MucX genome. Comparative genome analysis was used to identify functional genes unique to MucX compared to six other A. muciniphila strains. Results showed MucX genome possesses unique genes, including sugar transporters and transferases. Single-strain incubation revealed faster utilization of 2'-fucosyllactose (2'-FL), galacto-oligosaccharides, and lactose by MucX than by A. muciniphila DSM 22959. This study isolated and identified an A. muciniphila strain that can utilize 2'-FL, and expolored the genes related to HMO utilization and special metabolites, which provided a theoretical basis for the further excavation of A. muciniphila function and the compound application with fucosylated oligosaccharides.
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Affiliation(s)
- Wei Gao
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong Province, People's Republic of China
| | - Mengshi Xiao
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong Province, People's Republic of China
| | - Ziqiang Gu
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong Province, People's Republic of China
| | - Xiaodan Fu
- State Key Laboratory of Food Science and Technology, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, Nanchang, 330047, Jiangxi Province, People's Republic of China
| | - Xinmiao Ren
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong Province, People's Republic of China
| | - Ying Yu
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong Province, People's Republic of China
| | - Zhemin Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong Province, People's Republic of China
| | - Changliang Zhu
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong Province, People's Republic of China
| | - Qing Kong
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong Province, People's Republic of China
| | - Haijin Mou
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong Province, People's Republic of China.
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Kijner S, Kolodny O, Yassour M. Human milk oligosaccharides and the infant gut microbiome from an eco-evolutionary perspective. Curr Opin Microbiol 2022; 68:102156. [DOI: 10.1016/j.mib.2022.102156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 03/03/2022] [Accepted: 04/14/2022] [Indexed: 12/21/2022]
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Conze DB, Kruger CL, Symonds JM, Lodder R, Schönknecht YB, Ho M, Derya SM, Parkot J, Parschat K. Weighted analysis of 2'-fucosylactose, 3-fucosyllactose, lacto-N-tetraose, 3'-sialyllactose, and 6'-sialyllactose concentrations in human milk. Food Chem Toxicol 2022;:112877. [PMID: 35304182 DOI: 10.1016/j.fct.2022.112877] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 02/11/2022] [Accepted: 02/16/2022] [Indexed: 11/22/2022]
Abstract
Over 150 human milk oligosaccharides (HMOs) have been identified and their concentrations in human milk vary depending on Secretor and Lewis blood group status, environmental and geographical factors, lactation stage, gestational period, and maternal health. Quantitation of HMOs in human milk has been the focus of numerous studies, however, comprehensive and weighted statistical analyses of their levels in human milk are lacking. Therefore, weighted means, standard deviations, medians, interquartile ranges, and 90th percentiles for 2'-fucosyllactose (2'-FL), 3-fucosyllactose (3-FL), lacto-N-tetraose (LNT), 3'-sialyllactose (3'-SL) and 6'-sialyllactose (6'-SL) were calculated using random sampling and the levels of these HMOs in human milk reported in the literature. Probability distributions of the reported levels were also constructed. Although the levels reported in the published studies varied, the weighted means for 2'-FL, 3-FL, LNT, 3'-SL, and 6'-SL were calculated to be 2.58, 0.57, 0.94, 0.28, and 0.39 g/L, respectively, which are consistent with those that have been previously determined in other systematic analyses. Likely due to the use of weighting, the 90th percentiles were greater than the 95% confidence limits that have been previously calculated. Our study therefore provides accurate and important statistical data to help support the level of appropriate HMO supplementation in infant formula.
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Cheema AS, Gridneva Z, Furst AJ, Roman AS, Trevenen ML, Turlach BA, Lai CT, Stinson LF, Bode L, Payne MS, Geddes DT. Human Milk Oligosaccharides and Bacterial Profile Modulate Infant Body Composition during Exclusive Breastfeeding. Int J Mol Sci 2022; 23:2865. [PMID: 35270006 PMCID: PMC8911220 DOI: 10.3390/ijms23052865] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 02/23/2022] [Accepted: 03/02/2022] [Indexed: 02/06/2023] Open
Abstract
Human milk is a complex and variable ecosystem fundamental to the development of newborns. This study aimed to investigate relationships between human milk oligosaccharides (HMO) and human milk bacterial profiles and infant body composition. Human milk samples (n = 60) were collected at two months postpartum. Infant and maternal body composition was measured with bioimpedance spectroscopy. Human milk bacterial profiles were assessed using full-length 16S rRNA gene sequencing and 19 HMOs were quantitated using high-performance liquid chromatography. Relative abundance of human milk bacterial taxa were significantly associated with concentrations of several fucosylated and sialylated HMOs. Individual human milk bacteria and HMO intakes and concentrations were also significantly associated with infant anthropometry, fat-free mass, and adiposity. Furthermore, when data were stratified based on maternal secretor status, some of these relationships differed significantly among infants born to secretor vs non-secretor mothers. In conclusion, in this pilot study the human milk bacterial profile and HMO intakes and concentrations were significantly associated with infant body composition, with associations modified by secretor status. Future research designed to increase the understanding of the mechanisms by which HMO and human milk bacteria modulate infant body composition should include intakes in addition to concentrations.
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Abstract
BACKGROUND Intestinal dysbiosis may contribute to the pathogenesis of necrotising enterocolitis (NEC) in very preterm or very low birth weight (VLBW) infants. Dietary supplementation with synbiotics (probiotic micro-organisms combined with prebiotic oligosaccharides) to modulate the intestinal microbiome has been proposed as a strategy to reduce the risk of NEC and associated mortality and morbidity. OBJECTIVES To assess the effect of enteral supplementation with synbiotics (versus placebo or no treatment, or versus probiotics or prebiotics alone) for preventing NEC and associated morbidity and mortality in very preterm or VLBW infants. SEARCH METHODS We searched the Cochrane Central Register of Controlled Trials, MEDLINE, Embase, the Maternity and Infant Care database and CINAHL, from earliest records to 17 June 2021. We searched clinical trials databases and conference proceedings, and examined the reference lists of retrieved articles. SELECTION CRITERIA We included randomised controlled trials (RCTs) and quasi-RCTs comparing prophylactic synbiotics supplementation with placebo or no synbiotics in very preterm (< 32 weeks' gestation) or very low birth weight (< 1500 g) infants. DATA COLLECTION AND ANALYSIS Two review authors separately performed the screening and selection process, evaluated risk of bias of the trials, extracted data, and synthesised effect estimates using risk ratio (RR), risk difference (RD), and mean difference, with associated 95% confidence intervals (CIs). We used the GRADE approach to assess the level of certainty for effects on NEC, all-cause mortality, late-onset invasive infection, and neurodevelopmental impairment. MAIN RESULTS We included six trials in which a total of 925 infants participated. Most trials were small (median sample size 200). Lack of clarity on methods used to conceal allocation and mask caregivers or investigators were potential sources of bias in four of the trials. The studied synbiotics preparations contained lactobacilli or bifidobacteria (or both) combined with fructo- or galacto-oligosaccharides (or both). Meta-analyses suggested that synbiotics may reduce the risk of NEC (RR 0.18, 95% CI 0.09 to 0.40; RD 70 fewer per 1000, 95% CI 100 fewer to 40 fewer; number needed to treat for an additional beneficial outcome (NNTB) 14, 95% CI 10 to 25; six trials (907 infants); low certainty evidence); and all-cause mortality prior to hospital discharge (RR 0.53, 95% CI 0.33 to 0.85; RD 50 fewer per 1000, 95% CI 120 fewer to 100 fewer; NNTB 20, 95% CI 8 to 100; six trials (925 infants); low-certainty evidence). Synbiotics may have little or no effect on late-onset invasive infection, but the evidence is very uncertain (RR 0.84, 95% CI 0.58 to 1.21; RD 20 fewer per 1000, 95% CI 70 fewer to 30 more; five trials (707 infants); very low-certainty evidence). None of the trials assessed neurodevelopmental outcomes. In the absence of high levels of heterogeneity, we did not undertake any subgroup analysis (including the type of feeding). AUTHORS' CONCLUSIONS The available trial data provide only low-certainty evidence about the effects of synbiotics on the risk of NEC and associated morbidity and mortality for very preterm or very low birth weight infants. Our confidence in the effect estimates is limited; the true effects may be substantially different from these estimates. Large, high-quality trials would be needed to provide evidence of sufficient validity and applicability to inform policy and practice.
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Affiliation(s)
- Sahar Sharif
- Centre for Reviews and Dissemination, University of York, York, UK
| | - Paul T Heath
- Division of Child Health and Vaccine Institute, St. George's, University of London, London, UK
| | - Sam J Oddie
- Bradford Neonatology, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK
| | - William McGuire
- Centre for Reviews and Dissemination, University of York, York, UK
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Abstract
A mother is gifted with breast milk, the natural source of nutrition for her infant. In addition to the wealth of macro and micro-nutrients, human milk also contains many microorganisms, few of which originate from the mother, while others are acquired from the mouth of the infant and the surroundings. Among these microbes, the most commonly residing bacteria are Staphylococci, Streptococci, Lactobacilli and Bifidobacteria. These microorganisms initiate and help the development of the milk microbiota as well as the microbiota of the gastrointestinal tract in infants, and contribute to developing immune regulatory factors such as cytokines, growth factors, lactoferrin among others. These factors play an important role in reducing the risk of developing chronic diseases like type 2 diabetes, asthma and others later in life. In this review, we will summarize the known benefits of breastfeeding and highlight the role of the breast milk microbiota and its cross-talk with the immune system in breastfed babies during the early years of life.
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Affiliation(s)
- Anoud Duale
- Division of Maternal and Child Health, Department of Translational Medicine, Research Branch, Sidra Medicine, Doha, Qatar
| | - Parul Singh
- Division of Maternal and Child Health, Department of Translational Medicine, Research Branch, Sidra Medicine, Doha, Qatar
- College of Health and Life Sciences, Hamad Bin Khalifa University, Ar-Rayyan, Qatar
| | - Souhaila Al Khodor
- Division of Maternal and Child Health, Department of Translational Medicine, Research Branch, Sidra Medicine, Doha, Qatar
- *Correspondence: Souhaila Al Khodor
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Zeinali LI, Giuliano S, Lakshminrusimha S, Underwood MA. Intestinal Dysbiosis in the Infant and the Future of Lacto-Engineering to Shape the Developing Intestinal Microbiome. Clin Ther 2021; 44:193-214.e1. [PMID: 34922744 DOI: 10.1016/j.clinthera.2021.11.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 11/06/2021] [Accepted: 11/12/2021] [Indexed: 12/16/2022]
Abstract
PURPOSE The goal of this study was to review the role of human milk in shaping the infant intestinal microbiota and the potential of human milk bioactive molecules to reverse trends of increasing intestinal dysbiosis and dysbiosis-associated diseases. METHODS This narrative review was based on recent and historic literature. FINDINGS Human milk immunoglobulins, oligosaccharides, lactoferrin, lysozyme, milk fat globule membranes, and bile salt-stimulating lipase are complex multifunctional bioactive molecules that, among other important functions, shape the composition of the infant intestinal microbiota. IMPLICATIONS The co-evolution of human milk components and human milk-consuming commensal anaerobes many thousands of years ago resulted in a stable low-diversity infant microbiota. Over the past century, the introduction of antibiotics and modern hygiene practices plus changes in the care of newborns have led to significant alterations in the intestinal microbiota, with associated increases in risk of dysbiosis-associated disease. A better understanding of mechanisms by which human milk shapes the intestinal microbiota of the infant during a vulnerable period of development of the immune system is needed to alter the current trajectory and decrease intestinal dysbiosis and associated diseases.
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Affiliation(s)
- Lida I Zeinali
- Department of Pediatrics, UC Davis School of Medicine, Sacramento, CA, USA
| | | | | | - Mark A Underwood
- Department of Pediatrics, UC Davis School of Medicine, Sacramento, CA, USA.
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29
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Ambrogi V, Bottacini F, Mac Sharry J, van Breen J, O'Keeffe E, Walsh D, Schoemaker B, Cao L, Kuipers B, Lindner C, Jimeno ML, Doyagüez EG, Hernandez-Hernandez O, Moreno FJ, Schoterman M, van Sinderen D. Bifidobacterial β-Galactosidase-Mediated Production of Galacto-Oligosaccharides: Structural and Preliminary Functional Assessments. Front Microbiol 2021; 12:750635. [PMID: 34777303 PMCID: PMC8581567 DOI: 10.3389/fmicb.2021.750635] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 09/27/2021] [Indexed: 11/13/2022] Open
Abstract
In the current study the ability of four previously characterized bifidobacterial β-galactosidases (designated here as BgaA, BgaC, BgaD, and BgaE) to produce galacto-oligosaccharides (GOS) was optimized. Of these enzymes, BgaA and BgaE were found to be promising candidates for GOS production (and the corresponding GOS mixtures were called GOS-A and GOS-E, respectively) with a GOS concentration of 19.0 and 40.3% (of the initial lactose), respectively. GOS-A and GOS-E were partially purified and structurally characterized. NMR analysis revealed that the predominant (non-lactose) disaccharide was allo-lactose in both purified GOS preparations. The predominant trisaccharide in GOS-A and GOS-E was shown to be 3′-galactosyllactose, with lower levels of 6′-galactosyllactose and 4′-galactosyllactose. These three oligosaccharides have also been reported to occur in human milk. Purified GOS-A and GOS-E were shown to be able to support bifidobacterial growth similar to a commercially available GOS. In addition, GOS-E and the commercially available GOS were shown to be capable of reducing Escherichia coli adhesion to a C2BBe1 cell line. Both in vitro bifidogenic activity and reduced E. coli adhesion support the prebiotic potential of GOS-E and GOS-A.
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Affiliation(s)
- Valentina Ambrogi
- APC Microbiome Ireland, University College Cork, Cork, Ireland.,School of Microbiology, University College Cork, Cork, Ireland
| | - Francesca Bottacini
- APC Microbiome Ireland, University College Cork, Cork, Ireland.,Department of Biological Sciences, Munster Technological University, Cork, Ireland
| | - John Mac Sharry
- APC Microbiome Ireland, University College Cork, Cork, Ireland.,School of Microbiology, University College Cork, Cork, Ireland.,School of Medicine, University College Cork, Cork, Ireland
| | | | - Ellen O'Keeffe
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Dan Walsh
- School of Microbiology, University College Cork, Cork, Ireland
| | | | - Linqiu Cao
- FrieslandCampina, Amersfoort, Netherlands
| | | | | | | | | | - Oswaldo Hernandez-Hernandez
- Instituto de Investigación en Ciencias de la Alimentación, CIAL (CSIC-UAM), Universidad Autónoma de Madrid, Madrid, Spain
| | - F Javier Moreno
- Instituto de Investigación en Ciencias de la Alimentación, CIAL (CSIC-UAM), Universidad Autónoma de Madrid, Madrid, Spain
| | | | - Douwe van Sinderen
- APC Microbiome Ireland, University College Cork, Cork, Ireland.,School of Microbiology, University College Cork, Cork, Ireland
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30
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Luna E, Parkar SG, Kirmiz N, Hartel S, Hearn E, Hossine M, Kurdian A, Mendoza C, Orr K, Padilla L, Ramirez K, Salcedo P, Serrano E, Choudhury B, Paulchakrabarti M, Parker CT, Huynh S, Cooper K, Flores GE. Utilization efficiency of human milk oligosaccharides by human-associated Akkermansia is strain-dependent. Appl Environ Microbiol 2021;:AEM0148721. [PMID: 34669436 DOI: 10.1128/AEM.01487-21] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Akkermansia muciniphila are mucin degrading bacteria found in the human gut and are often associated with positive human health. However, despite being detected as early as one month of age, little is known about the role of Akkermansia in the infant gut. Human milk oligosaccharides (HMOs) are abundant components of human milk and are structurally similar to the oligosaccharides that comprise mucin, the preferred growth substrate of human-associated Akkermansia. A limited subset of intestinal bacteria has been shown to grow well on HMOs and mucin. We therefore examined the ability of genomically diverse strains of Akkermansia to grow on HMOs. First, we screened 85 genomes representing the four known Akkermansia phylogroups to examine their metabolic potential to degrade HMOs. Furthermore, we examined the ability of representative isolates to grow on individual HMOs in a mucin background and analyzed the resulting metabolites. All Akkermansia genomes were equipped with an array of glycoside hydrolases associated with HMO-deconstruction. Representative strains were all able to grow on HMOs with varying efficiency and growth yield. Strain CSUN-19 belonging to the AmIV phylogroup, grew to the highest level in the presence of fucosylated and sialylated HMOs. This activity may be partially related to the increased copy numbers and/or the enzyme activities of the α-fucosidases, α-sialidases, and β-galactosidases. This examines the utilization of individual purified HMOs by Akkermansia strains representing all known phylogroups. Further studies are required to examine how HMO ingestion influences gut microbial ecology in infants harboring different Akkermansia phylogroups. Importance Human milk oligosaccharides (HMOs) are the third most abundant component of breast milk and provide several benefits to developing infants including recruitment of beneficial bacteria to the human gut. Akkermansia are largely considered beneficial bacteria and have been detected in colostrum, breast milk, and young infants. A. muciniphila MucT belonging to the AmI phylogroup contribute to the HMO deconstruction capacity of the infant. Here, using phylogenomics, we examined the genomic capacity of four Akkermansia phylogroups to deconstruct HMOs. Indeed, each phylogroup contained differences in the genomic capacity to deconstruct HMOs and representative strains of each phylogroup were able to grow using HMOs. These Akkermansia-HMO interactions potentially influence gut microbial ecology in early life - a critical time for the development of the gut microbiome and infant health.
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Turck D, Bohn T, Castenmiller J, De Henauw S, Hirsch‐Ernst KI, Maciuk A, Mangelsdorf I, McArdle HJ, Naska A, Pelaez C, Pentieva K, Siani A, Thies F, Tsabouri S, Vinceti M, Cubadda F, Frenzel T, Heinonen M, Marchelli R, Neuhäuser‐Berthold M, Poulsen M, Prieto Maradona M, Schlatter JR, van Loveren H, Ackerl R, Knutsen HK. Safety of pasteurised Akkermansia muciniphila as a novel food pursuant to Regulation (EU) 2015/2283. EFSA J 2021; 19:e06780. [PMID: 34484452 PMCID: PMC8409316 DOI: 10.2903/j.efsa.2021.6780] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) was asked to deliver an opinion on pasteurised Akkermansia muciniphila as a novel food (NF) pursuant to Regulation (EU) 2015/2283. A. muciniphila is a well-characterised non-toxin producing, avirulent microorganism that has been reported as part of normal gut microbiota. The NF, pasteurised A. muciniphila, is proposed by the applicant to be used as a food supplement at max. 5 × 1010 cells/day by adults excluding pregnant and lactating women, and in foods for special medical purposes. The Panel considers that the production process of the NF is sufficiently described and that the information provided on the composition of the NF is sufficient for its characterisation. Taking into account the composition of the NF and the proposed conditions of use, the consumption of the NF is not nutritionally disadvantageous. Based on literature data, and by applying an uncertainty factor of 200 to the no observed adverse effect level (NOAEL) of a 90-day repeated dose oral toxicity study in rats, the Panel concludes that the consumption of 3.4 × 1010 cells/day is safe for the target population under the provision that the number of viable cells in the NF is < 10 colony forming units (CFU)/g (i.e. limit of detection).
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Soyyılmaz B, Mikš MH, Röhrig CH, Matwiejuk M, Meszaros-Matwiejuk A, Vigsnæs LK. The Mean of Milk: A Review of Human Milk Oligosaccharide Concentrations throughout Lactation. Nutrients 2021; 13:2737. [PMID: 34444897 DOI: 10.3390/nu13082737] [Citation(s) in RCA: 89] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/14/2021] [Accepted: 07/22/2021] [Indexed: 12/13/2022] Open
Abstract
Human milk oligosaccharides (HMOs) are non-digestible and structurally diverse complex carbohydrates that are highly abundant in human milk. To date, more than 200 different HMO structures have been identified. Their concentrations in human milk vary according to various factors such as lactation period, mother’s genetic secretor status, and length of gestation (term or preterm). The objective of this review is to assess and rank HMO concentrations from healthy mothers throughout lactation at a global level. To this aim, published data from pooled (secretor and non-secretor) human milk samples were used. When samples were reported as secretor or non-secretor, means were converted to a pooled level, using the reported mean of approximately 80/20% secretor/non-secretor frequency in the global population. This approach provides an estimate of HMO concentrations in the milk of an average, healthy mother independent of secretor status. Mean concentrations of HMOs were extracted and categorized by pre-defined lactation periods of colostrum (0–5 days), transitional milk (6–14 days), mature milk (15–90 days), and late milk (>90 days). Further categorizations were made by gestational length at birth, mother’s ethnicity, and analytical methodology. Data were excluded if they were from preterm milk, unknown sample size and mothers with any known disease status. A total of 57 peer-reviewed articles reporting individual HMO concentrations published between 1996 and 2020 were included in the review. Pooled HMO means reported from 31 countries were analyzed. In addition to individual HMO concentrations, 12 articles reporting total HMO concentrations were also analyzed as a basis for relative HMO abundance. Total HMOs were found as 17.7 g/L in colostrum, 13.3 g/L in transitional milk, and 11.3 g/L in mature milk. The results show that HMO concentrations differ largely for each individual HMO and vary with lactation stages. For instance, while 2′-FL significantly decreased from colostrum (3.18 g/L ± 0.9) to late milk (1.64 g/L ± 0.67), 3-FL showed a significant increase from colostrum (0.37 g/L ± 0.1) to late milk (0.92 g/L ± 0.5). Although pooled human milk contains a diverse HMO profile with more than 200 structures identified, the top 10 individual HMOs make up over 70% of total HMO concentration. In mature pooled human milk, the top 15 HMOs in decreasing order of magnitude are 2′-FL, LNDFH-I (DFLNT), LNFP-I, LNFP-II, LNT, 3-FL, 6′-SL, DSLNT, LNnT, DFL (LDFT), FDS-LNH, LNFP-III, 3′-SL, LST c, and TF-LNH.
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Xie X, Zhang G, Gao H, Deng K, Chu Y, Wu D, Yan S, Zhou J, Zhao J. Analysis of bovine colostrum microbiota at a dairy farm in Ningxia, China. Int Dairy J 2021; 119:104984. [DOI: 10.1016/j.idairyj.2021.104984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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35
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Rendina DN, Lubach GR, Lyte M, Phillips GJ, Gosain A, Pierre JF, Vlasova RM, Styner MA, Coe CL. Proteobacteria abundance during nursing predicts physical growth and brain volume at one year of age in young rhesus monkeys. FASEB J 2021; 35:e21682. [PMID: 34042210 DOI: 10.1096/fj.202002162r] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 04/20/2021] [Accepted: 05/06/2021] [Indexed: 01/01/2023]
Abstract
Over the last decade, multiple studies have highlighted the essential role of gut microbiota in normal infant development. However, the sensitive periods during which gut bacteria are established and become associated with physical growth and maturation of the brain are still poorly defined. This study tracked the assembly of the intestinal microbiota during the initial nursing period, and changes in community structure after transitioning to solid food in infant rhesus monkeys (Macaca mulatta). Anthropometric measures and rectal swabs were obtained at 2-month intervals across the first year of life and bacterial taxa identified by 16S rRNA gene sequencing. At 12 months of age, total brain and cortical regions volumes were quantified through structural magnetic resonance imaging. The bacterial community structure was dynamic and characterized by discrete maturational phases, reflecting an early influence of breast milk and the later transition to solid foods. Commensal microbial taxa varied with diet similar to findings in other animals and human infants; however, monkeys differ in the relative abundances of Lactobacilli and Bifidobacteria, two taxa predominant in breastfed human infants. Higher abundances of taxa in the phylum Proteobacteria during nursing were predictive of slower growth trajectories and smaller brain volumes at one year of age. Our findings define discrete phases of microbial succession in infant monkeys and suggest there may be a critical period during nursing when endogenous differences in certain taxa can shift the community structure and influence the pace of physical growth and the maturational trajectory of the brain.
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Affiliation(s)
- Danielle N Rendina
- Harlow Center, University of Wisconsin, Madison, WI, USA.,Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
| | | | - Mark Lyte
- Department of Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, IA, USA
| | - Gregory J Phillips
- Department of Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, IA, USA
| | - Ankush Gosain
- Department of Surgery, University of Tennessee Health Science Center, Memphis, TN, USA.,Children's Foundation Research Institute, Le Bonheur Children's Hospital, Memphis, TN, USA
| | - Joseph F Pierre
- Children's Foundation Research Institute, Le Bonheur Children's Hospital, Memphis, TN, USA.,Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Roza M Vlasova
- Department of Psychiatry, University of North Carolina, Chapel Hill, NC, USA.,Department of Computer Science, University of North Carolina, Chapel Hill, NC, USA
| | - Martin A Styner
- Department of Psychiatry, University of North Carolina, Chapel Hill, NC, USA.,Department of Computer Science, University of North Carolina, Chapel Hill, NC, USA
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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 DOI: 10.3390/nu13072414] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [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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Thum C, Wall CR, Weiss GA, Wang W, Szeto IMY, Day L. Changes in HMO Concentrations throughout Lactation: Influencing Factors, Health Effects and Opportunities. Nutrients 2021; 13:2272. [PMID: 34209241 PMCID: PMC8308359 DOI: 10.3390/nu13072272] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/28/2021] [Accepted: 06/28/2021] [Indexed: 12/18/2022] Open
Abstract
Human milk oligosaccharides (HMOs) are important functional biomolecules in human breast milk. Understanding the factors influencing differences in HMO composition and changes in their concentration over lactation can help to design feeding strategies that are well-adapted to infant's needs. This review summarises the total and individual concentration of HMOs from data published from 1999 to 2019. Studies show that the HMO concentrations are highest in colostrum (average 9-22 g/L), followed by slightly lower concentrations in transitional milk (average 8-19 g/L), with a gradual decline in mature milk as lactation progresses, from 6-15 g/L in breast milk collected within one month of birth, to 4-6 g/L after 6 months. Significant differences in HMO composition have been described between countries. Different HMOs were shown to be predominant over the course of lactation, e.g., 3-fucosyllactose increased over lactation, whereas 2'-fucosyllactose decreased. Recent clinical studies on infant formula supplemented with 2'-fucosyllactose in combination with other oligosaccharides showed its limited beneficial effect on infant health.
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Affiliation(s)
- Caroline Thum
- AgResearch Ltd., Te Ohu Rangahau Kai, Palmerston North 4474, New Zealand;
| | - Clare Rosemary Wall
- Faculty of Medical and Health Sciences, The University of Auckland, Auckland 1142, New Zealand;
| | | | - Wendan Wang
- Yili Maternal and Infant Nutrition Institute, Inner Mongolia Yili Industrial Group, Co., Ltd., Fengtai District, Beijing 100071, China; (W.W.); (I.M.-Y.S.)
| | - Ignatius Man-Yau Szeto
- Yili Maternal and Infant Nutrition Institute, Inner Mongolia Yili Industrial Group, Co., Ltd., Fengtai District, Beijing 100071, China; (W.W.); (I.M.-Y.S.)
| | - Li Day
- AgResearch Ltd., Te Ohu Rangahau Kai, Palmerston North 4474, New Zealand;
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Kajdič L, Plavec T, Zdovc I, Kalin A, Zakošek Pipan M. Impact of Type of Parturition on Colostrum Microbiota Composition and Puppy Survival. Animals (Basel) 2021; 11:1897. [PMID: 34202284 DOI: 10.3390/ani11071897] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 06/22/2021] [Accepted: 06/23/2021] [Indexed: 11/24/2022] Open
Abstract
Simple Summary It has long been believed that the bacteria present in milk and colostrum were due to contamination during suckling from the oral cavity of the newborn or the skin of the mother. Colostrum and meconium from newborns were considered sterile. In the last decade, human research has provided evidence that bacteria are present in colostrum, milk, placenta, and the intestine of the newborn. The colostrum microbiota appears to change greatly and very rapidly, and in humans it has been found that it can be influenced by the type of parturition. Because information on the colostrum microbiota in dogs is lacking, the objective of our study was to determine whether the type of parturition affects the colostrum microbiota and the growth and survival of puppies in early life. Bacteria isolated from maternal colostrum and puppies meconium were identified by mass spectrometry. The results of this study provide new information on the colostrum microbiome of healthy dams and suggest that the type of parturition influences the bacterial composition of the colostrum microbiota, which may be an important factor in weight gain and survival of puppies in early life. Abstract The objective of our study was to determine whether the type of parturition affects the microbiota of the colostrum and the growth and survival of the puppies. Seventy-nine newborn puppies were divided into three groups regarding the type of parturition: vaginal delivery (VD), elective caesarean section (EL-CS), and emergency caesarean section (EM-CS). After the birth of the puppies, swabs of meconium were collected from the puppies and colostrum was obtained from the dam. Many aerobic and anaerobic bacteria were isolated and identified by mass spectrometry (MALDI-TOF MS). The colostrum microbiota of VD and EL-CS puppies contained a significantly higher abundance of bacteria belonging to the genera Staphylococcus, Kocuria and Enterococcus compared with EM-CS colostrum samples. The composition of the meconium microbiota of the puppies present at birth was similar to the colostrum microbiota of their mothers. It was also found that puppies without a meconium microbiota at birth gained weight more slowly compared with puppies with a meconium microbiota at birth. The type of parturition influenced the bacterial composition of the microbiota in the colostrum. Future studies are necessary to further define the significance of the observed differences in microbiota composition between EM-CS compared with EL-CS and VD colostrum microbiota.
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Hagi T, Belzer C. The interaction of Akkermansia muciniphila with host-derived substances, bacteria and diets. Appl Microbiol Biotechnol 2021; 105:4833-4841. [PMID: 34125276 PMCID: PMC8236039 DOI: 10.1007/s00253-021-11362-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 05/11/2021] [Accepted: 05/20/2021] [Indexed: 12/17/2022]
Abstract
Abstract Trillions of microbes inhabit the human gut and build extremely complex communities. Gut microbes contribute to host metabolisms for better or worse and are widely studied and associated with health and disease. Akkermansia muciniphila is a gut microbiota member, which uses mucin as both carbon and nitrogen sources. Many studies on A. muciniphila have been conducted since this unique bacterium was first described in 2004. A. muciniphila can play an important role in our health because of its beneficial effects, such as improving type II diabetes and obesity and anti-inflammation. A. muciniphila establishes its position as a next-generation probiotic. Besides the effect of A. muciniphila on host health, a technique for boosting has been investigated. In this review, we show what factors can modulate the abundance of A. muciniphila focusing on the interaction with host-derived substances, other bacteria and diets. This review also refers to the possibility of the interaction between medicine and A. muciniphila; this will open up future treatment strategies that can increase A. muciniphila abundance in the gut. Key points • Host-derived substances such as bile, microRNA and melatonin as well as mucin have beneficial effects on A. muciniphila. • Gut and probiotic bacteria and diet ingredients such as carbohydrates and phytochemicals could boost the abundance of A. muciniphila. • Several medicines could affect the growth of A. muciniphila.
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Affiliation(s)
- Tatsuro Hagi
- Institute of Livestock and Grassland Science, National Agriculture and Food Research Organisation (NARO), 2 Ikenodai, Tsukuba, Ibaraki, 305-0901, Japan.
| | - Clara Belzer
- Laboratory of Microbiology, Wageningen University and Research, 6708 WE, Wageningen, The Netherlands.
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Yan W, Luo B, Zhang X, Ni Y, Tian F. Association and Occurrence of Bifidobacterial Phylotypes Between Breast Milk and Fecal Microbiomes in Mother-Infant Dyads During the First 2 Years of Life. Front Microbiol 2021; 12:669442. [PMID: 34163448 PMCID: PMC8215152 DOI: 10.3389/fmicb.2021.669442] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 04/30/2021] [Indexed: 11/26/2022] Open
Abstract
Breast milk acts as an intermediary for the transfer of functionally important commensal bacteria from mother to infant, especially for Bifidobacterium that can colonize the infant gut. However, the vast majority of rRNA amplicon-based studies reported the conspicuous intercohort and interindividual variation for the prevalence of Bifidobacterium in breast milk. In order to elucidate whether Bifidobacterium phylotypes persistently co-occured at the species or strain level in mother–breast milk–infant triads, we analyzed collectively the next-generation sequencing (NGS) datasets of bacterial 16S rRNA gene and the Bifidobacterium-specific groEL gene from maternal feces, breast milk, and infant feces in a small yet very homogeneous cohort of 25 healthy Uyghur mother–infant pairs (lactation for 7–720 days) in Kashgar, Xinjiang, China. Overall, 16S rRNA gene analysis showed that microbiome in the newborn gut was closer to that of breast milk in the first 4 months of lactation, and subsequently showed an obvious trend of adulthood at 6–12 months. Based on the BLAST accurate taxonomic result of the representative sequences of all ASVs (amplicon sequencing variants), only three sets of ASVs could be clearly assigned into Bifidobacterium species, whereas the remaining eight sets of ASVs corresponded to four indefinite Bifidobacterium species group. By contrast, the groEL gene dataset was partitioned into 376 ASVs, at least belonging to 13 well-known Bifidobacterium species or subspecies, of which 15 ASVs, annotated to seven well-known Bifidobacterium species or subspecies, showed triadic synchronism in most 23 mother–infant pairs tested. However, several other rare bifidobacterial phylotypes, which were frequently encountered in animals, were found to display no correspondence of the presence between the three ecosystems of mother–infant pairs. Our test results were obviously to support the hypothesis that breast milk acts as an intermediary for the transfer of probiotic commensal bacteria from mother to infant, especially for endosymbiotic Bifidobacterium that can colonize the infant gut. Some oxygen-insensitive exogenous Bifidobacterium phylotypes with a cosmopolitan lifestyle may be indirectly transferred to breast milk and the infant’s intestinal tract through environmental contamination. Thus, the groEL gene proved to be a very effective target for the depth resolution of Bifidobacterium community by high-throughput sequencing technologies.
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Affiliation(s)
- Wenli Yan
- School of Food Science and Technology, Shihezi University, Shihezi, China
| | - Baolong Luo
- School of Food Science and Technology, Shihezi University, Shihezi, China
| | - Xuyao Zhang
- School of Food Science and Technology, Shihezi University, Shihezi, China
| | - Yongqing Ni
- School of Food Science and Technology, Shihezi University, Shihezi, China
| | - Fengwei Tian
- School of Food Science and Technology, Jiangnan University, Wuxi, China
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41
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Torun A, Hupalowska A, Trzonkowski P, Kierkus J, Pyrzynska B. Intestinal Microbiota in Common Chronic Inflammatory Disorders Affecting Children. Front Immunol 2021; 12:642166. [PMID: 34163468 PMCID: PMC8215716 DOI: 10.3389/fimmu.2021.642166] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 05/24/2021] [Indexed: 12/12/2022] Open
Abstract
The incidence and prevalence rate of chronic inflammatory disorders is on the rise in the pediatric population. Recent research indicates the crucial role of interactions between the altered intestinal microbiome and the immune system in the pathogenesis of several chronic inflammatory disorders in children, such as inflammatory bowel disease (IBD) and autoimmune diseases, such as type 1 diabetes mellitus (T1DM) and celiac disease (CeD). Here, we review recent knowledge concerning the pathogenic mechanisms underlying these disorders, and summarize the facts suggesting that the initiation and progression of IBD, T1DM, and CeD can be partially attributed to disturbances in the patterns of composition and abundance of the gut microbiota. The standard available therapies for chronic inflammatory disorders in children largely aim to treat symptoms. Although constant efforts are being made to maximize the quality of life for children in the long-term, sustained improvements are still difficult to achieve. Additional challenges are the changing physiology associated with growth and development of children, a population that is particularly susceptible to medication-related adverse effects. In this review, we explore new promising therapeutic approaches aimed at modulation of either gut microbiota or the activity of the immune system to induce a long-lasting remission of chronic inflammatory disorders. Recent preclinical studies and clinical trials have evaluated new approaches, for instance the adoptive transfer of immune cells, with genetically engineered regulatory T cells expressing antigen-specific chimeric antigen receptors. These approaches have revolutionized cancer treatments and have the potential for the protection of high-risk children from developing autoimmune diseases and effective management of inflammatory disorders. The review also focuses on the findings of studies that indicate that the responses to a variety of immunotherapies can be enhanced by strategic manipulation of gut microbiota, thus emphasizing on the importance of proper interaction between the gut microbiota and immune system for sustained health benefits and improvement of the quality of life of pediatric patients.
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Affiliation(s)
- Anna Torun
- Chair and Department of Biochemistry, Medical University of Warsaw, Warsaw, Poland
| | - Anna Hupalowska
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA, United States
| | - Piotr Trzonkowski
- Department of Medical Immunology, Medical University of Gdansk, Gdansk, Poland
| | - Jaroslaw Kierkus
- Department of Gastroenterology, Hepatology, Feeding Disorders and Pediatrics, The Children's Memorial Health Institute, Warsaw, Poland
| | - Beata Pyrzynska
- Chair and Department of Biochemistry, Medical University of Warsaw, Warsaw, Poland
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42
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Pace RM, Williams JE, Robertson B, Lackey KA, Meehan CL, Price WJ, Foster JA, Sellen DW, Kamau-Mbuthia EW, Kamundia EW, Mbugua S, Moore SE, Prentice AM, Kita DG, Kvist LJ, Otoo GE, Ruiz L, Rodríguez JM, Pareja RG, McGuire MA, Bode L, McGuire MK. Variation in Human Milk Composition Is Related to Differences in Milk and Infant Fecal Microbial Communities. Microorganisms 2021; 9:1153. [PMID: 34072117 PMCID: PMC8230061 DOI: 10.3390/microorganisms9061153] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 05/21/2021] [Accepted: 05/24/2021] [Indexed: 12/11/2022] Open
Abstract
Previously published data from our group and others demonstrate that human milk oligosaccharide (HMOs), as well as milk and infant fecal microbial profiles, vary by geography. However, little is known about the geographical variation of other milk-borne factors, such as lactose and protein, as well as the associations among these factors and microbial community structures in milk and infant feces. Here, we characterized and contrasted concentrations of milk-borne lactose, protein, and HMOs, and examined their associations with milk and infant fecal microbiomes in samples collected in 11 geographically diverse sites. Although geographical site was strongly associated with milk and infant fecal microbiomes, both sample types assorted into a smaller number of community state types based on shared microbial profiles. Similar to HMOs, concentrations of lactose and protein also varied by geography. Concentrations of HMOs, lactose, and protein were associated with differences in the microbial community structures of milk and infant feces and in the abundance of specific taxa. Taken together, these data suggest that the composition of human milk, even when produced by relatively healthy women, differs based on geographical boundaries and that concentrations of HMOs, lactose, and protein in milk are related to variation in milk and infant fecal microbial communities.
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Affiliation(s)
- Ryan M. Pace
- Margaret Ritchie School of Family and Consumer Sciences, University of Idaho, Moscow, ID 83844, USA;
| | - Janet E. Williams
- Department of Animal, Veterinary and Food Sciences, University of Idaho, Moscow, ID 83844, USA; (J.E.W.); (M.A.M.)
| | - Bianca Robertson
- Larsson-Rosenquist Foundation Mother-Milk-Infant Center of Research Excellence, Univeristy of California San Diego, La Jolla, CA 92093, USA; (B.R.); (L.B.)
- Department of Pediatrics, Univeristy of California San Diego, La Jolla, CA 92093, USA
| | - Kimberly A. Lackey
- Margaret Ritchie School of Family and Consumer Sciences, University of Idaho, Moscow, ID 83844, USA;
| | - Courtney L. Meehan
- Department of Anthropology, Washington State University, Pullman, WA 99164, USA;
| | - William J. Price
- Statistical Programs, College of Agricultural and Life Sciences, University of Idaho, Moscow, ID 83844, USA;
| | - James A. Foster
- Department of Biological Sciences, University of Idaho, Moscow, ID 83844, USA;
| | - Daniel W. Sellen
- Department of Anthropology, University of Toronto, Toronto, ON M5S 1A8, Canada;
| | | | - Egidioh W. Kamundia
- Department of Human Nutrition, Egerton University, Nakuru 20115, Kenya; (E.W.K.-M.); (E.W.K.); (S.M.)
| | - Samwel Mbugua
- Department of Human Nutrition, Egerton University, Nakuru 20115, Kenya; (E.W.K.-M.); (E.W.K.); (S.M.)
| | - Sophie E. Moore
- Department of Women and Children’s Health, King’s College London, London WC2R 2LS, UK;
- MRC Unit The Gambia at the London School of Hygiene and Tropical Medicine, Fajara P.O. Box 273, Gambia;
| | - Andrew M. Prentice
- MRC Unit The Gambia at the London School of Hygiene and Tropical Medicine, Fajara P.O. Box 273, Gambia;
| | - Debela G. Kita
- Department of Anthropology, Hawassa University, Hawassa P.O. Box 27601, Ethiopia;
| | - Linda J. Kvist
- Faculty of Medicine, Lund University, 221 00 Lund, Sweden;
| | - Gloria E. Otoo
- Department of Nutrition and Food Science, University of Ghana, Accra 00233, Ghana;
| | - Lorena Ruiz
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias (IPLA-CSIC), 33300 Villaviciosa, Spain;
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
| | - Juan M. Rodríguez
- Department of Nutrition and Food Science, Complutense University of Madrid, 28040 Madrid, Spain;
| | | | - Mark A. McGuire
- Department of Animal, Veterinary and Food Sciences, University of Idaho, Moscow, ID 83844, USA; (J.E.W.); (M.A.M.)
| | - Lars Bode
- Larsson-Rosenquist Foundation Mother-Milk-Infant Center of Research Excellence, Univeristy of California San Diego, La Jolla, CA 92093, USA; (B.R.); (L.B.)
- Department of Pediatrics, Univeristy of California San Diego, La Jolla, CA 92093, USA
| | - Michelle K. McGuire
- Margaret Ritchie School of Family and Consumer Sciences, University of Idaho, Moscow, ID 83844, USA;
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Cochrane Neonatal Group, Sahar Sharif, Paul T Heath, Sam J Oddie, William McGuire. Synbiotics for preventing necrotising enterocolitis in preterm infants. Cochrane Database Syst Rev 2021; 2021:CD014067. [ DOI: 10.1002/14651858.CD014067] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2024]
Abstract
This is a protocol for a Cochrane Review (intervention). The objectives are as follows: To evaluate the effect of enteral supplementation with synbiotics (versus placebo or no treatment, or versus probiotics or prebiotics alone) on the risk of necrotising enterocolitis and associated morbidity and mortality in very preterm or very low birth weight infants.
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Kononova S, Litvinova E, Vakhitov T, Skalinskaya M, Sitkin S. Acceptive Immunity: The Role of Fucosylated Glycans in Human Host-Microbiome Interactions. Int J Mol Sci 2021; 22:ijms22083854. [PMID: 33917768 PMCID: PMC8068183 DOI: 10.3390/ijms22083854] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 04/04/2021] [Accepted: 04/05/2021] [Indexed: 02/07/2023] Open
Abstract
The growth in the number of chronic non-communicable diseases in the second half of the past century and in the first two decades of the new century is largely due to the disruption of the relationship between the human body and its symbiotic microbiota, and not pathogens. The interaction of the human immune system with symbionts is not accompanied by inflammation, but is a physiological norm. This is achieved via microbiota control by the immune system through a complex balance of pro-inflammatory and suppressive responses, and only a disturbance of this balance can trigger pathophysiological mechanisms. This review discusses the establishment of homeostatic relationships during immune system development and intestinal bacterial colonization through the interaction of milk glycans, mucins, and secretory immunoglobulins. In particular, the role of fucose and fucosylated glycans in the mechanism of interactions between host epithelial and immune cells is discussed.
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Affiliation(s)
- Svetlana Kononova
- Department of Microbiology, State Research Institute of Highly Pure Biopreparations, 197110 St. Petersburg, Russia; (T.V.); (M.S.); (S.S.)
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia
- Correspondence:
| | - Ekaterina Litvinova
- Scientific-Research Institute of Neurosciences and Medicine, 630117 Novosibirsk, Russia;
- Siberian Federal Scientific Center of Agro-BioTechnologies, Russian Academy of Sciences, Krasnoobsk, 633501 Novosibirsk, Russia
| | - Timur Vakhitov
- Department of Microbiology, State Research Institute of Highly Pure Biopreparations, 197110 St. Petersburg, Russia; (T.V.); (M.S.); (S.S.)
| | - Maria Skalinskaya
- Department of Microbiology, State Research Institute of Highly Pure Biopreparations, 197110 St. Petersburg, Russia; (T.V.); (M.S.); (S.S.)
- Department of Internal Diseases, Gastroenterology and Dietetics, North-Western State Medical University Named after I.I. Mechnikov, 191015 St. Petersburg, Russia
| | - Stanislav Sitkin
- Department of Microbiology, State Research Institute of Highly Pure Biopreparations, 197110 St. Petersburg, Russia; (T.V.); (M.S.); (S.S.)
- Department of Internal Diseases, Gastroenterology and Dietetics, North-Western State Medical University Named after I.I. Mechnikov, 191015 St. Petersburg, Russia
- Institute of Perinatology and Pediatrics, Almazov National Medical Research Centre, 197341 St. Petersburg, Russia
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Moubareck CA. Human Milk Microbiota and Oligosaccharides: A Glimpse into Benefits, Diversity, and Correlations. Nutrients 2021; 13:1123. [PMID: 33805503 PMCID: PMC8067037 DOI: 10.3390/nu13041123] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/18/2021] [Accepted: 03/26/2021] [Indexed: 12/12/2022] Open
Abstract
Human milk represents a cornerstone for growth and development of infants, with extensive array of benefits. In addition to exceptionally nutritive and bioactive components, human milk encompasses a complex community of signature bacteria that helps establish infant gut microbiota, contributes to maturation of infant immune system, and competitively interferes with pathogens. Among bioactive constituents of milk, human milk oligosaccharides (HMOs) are particularly significant. These are non-digestible carbohydrates forming the third largest solid component in human milk. Valuable effects of HMOs include shaping intestinal microbiota, imparting antimicrobial effects, developing intestinal barrier, and modulating immune response. Moreover, recent investigations suggest correlations between HMOs and milk microbiota, with complex links possibly existing with environmental factors, genetics, geographical location, and other factors. In this review, and from a physiological and health implications perspective, milk benefits for newborns and mothers are highlighted. From a microbiological perspective, a focused insight into milk microbiota, including origins, diversity, benefits, and effect of maternal diet is presented. From a metabolic perspective, biochemical, physiological, and genetic significance of HMOs, and their probable relations to milk microbiota, are addressed. Ongoing research into mechanistic processes through which the rich biological assets of milk promote development, shaping of microbiota, and immunity is tackled.
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Affiliation(s)
- Carole Ayoub Moubareck
- College of Natural and Health Sciences, Zayed University, Dubai 19282, United Arab Emirates
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46
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Yeruva L, Munblit D, Collado MC. Editorial: Impact of Early Life Nutrition on Immune System Development and Related Health Outcomes in Later Life. Front Immunol 2021; 12:668569. [PMID: 33841449 PMCID: PMC8027300 DOI: 10.3389/fimmu.2021.668569] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 03/11/2021] [Indexed: 12/15/2022] Open
Affiliation(s)
- Laxmi Yeruva
- Arkansas Children's Nutrition Center, Little Rock, AR, United States.,Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, United States.,Arkansas Children's Research Institute, Little Rock, AR, United States
| | - Daniel Munblit
- Department of Pediatrics and Pediatric Infectious Diseases, Institute of Child's Health, Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia.,Inflammation, Repair and Development Section, National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, United Kingdom.,Solov'ev Research and Clinical Center for Neuropsychiatry, Moscow, Russia
| | - Maria Carmen Collado
- Department of Biotechnology, Unit of Lactic Acid Bacteria and Probiotics, Institute of Agrochemistry and Food Technology, National Research Council (IATA-CSIC), Valencia, Spain
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Sánchez C, Franco L, Regal P, Lamas A, Cepeda A, Fente C. Breast Milk: A Source of Functional Compounds with Potential Application in Nutrition and Therapy. Nutrients 2021; 13:1026. [PMID: 33810073 PMCID: PMC8005182 DOI: 10.3390/nu13031026] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/09/2021] [Accepted: 03/18/2021] [Indexed: 12/12/2022] Open
Abstract
Breast milk is an unbeatable food that covers all the nutritional requirements of an infant in its different stages of growth up to six months after birth. In addition, breastfeeding benefits both maternal and child health. Increasing knowledge has been acquired regarding the composition of breast milk. Epidemiological studies and epigenetics allow us to understand the possible lifelong effects of breastfeeding. In this review we have compiled some of the components with clear functional activity that are present in human milk and the processes through which they promote infant development and maturation as well as modulate immunity. Milk fat globule membrane, proteins, oligosaccharides, growth factors, milk exosomes, or microorganisms are functional components to use in infant formulas, any other food products, nutritional supplements, nutraceuticals, or even for the development of new clinical therapies. The clinical evaluation of these compounds and their commercial exploitation are limited by the difficulty of isolating and producing them on an adequate scale. In this work we focus on the compounds produced using milk components from other species such as bovine, transgenic cattle capable of expressing components of human breast milk or microbial culture engineering.
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Affiliation(s)
- Cristina Sánchez
- Pharmacy Faculty, San Pablo-CEU University, 28003 Madrid, Spain;
| | - Luis Franco
- Medicine Faculty, Santiago de Compostela University, 15782 Santiago de Compostela, Spain;
| | - Patricia Regal
- Department of Analytical Chemistry, Nutrition and Bromatology, Santiago de Compostela University, 27002 Lugo, Spain; (P.R.); (A.L.); (A.C.)
| | - Alexandre Lamas
- Department of Analytical Chemistry, Nutrition and Bromatology, Santiago de Compostela University, 27002 Lugo, Spain; (P.R.); (A.L.); (A.C.)
| | - Alberto Cepeda
- Department of Analytical Chemistry, Nutrition and Bromatology, Santiago de Compostela University, 27002 Lugo, Spain; (P.R.); (A.L.); (A.C.)
| | - Cristina Fente
- Department of Analytical Chemistry, Nutrition and Bromatology, Santiago de Compostela University, 27002 Lugo, Spain; (P.R.); (A.L.); (A.C.)
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Zhou H, Sun L, Zhang S, Zhao X, Gang X, Wang G. The crucial role of early-life gut microbiota in the development of type 1 diabetes. Acta Diabetol 2021; 58:249-265. [PMID: 32712802 DOI: 10.1007/s00592-020-01563-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 06/19/2020] [Indexed: 02/07/2023]
Abstract
Early-life healthy gut microbiota has a profound implication on shaping the mucosal immune system as well as maintaining healthy status later in life, especially at the prenatal or neonatal stages, while intestinal dysbiosis in early life is associated with several autoimmune diseases, including type 1 diabetes (T1D). Since the gut microbiome is potentially modifiable, optimizing the intestinal bacterial composition in early life may be a novel option for T1D prevention. In this review, we will review current data depicting the crucial role of early-life intestinal microbiome in the development of T1D and discuss the possible mechanisms whereby early-life intestinal microbiome influences the T1D progression. We also summarize recent findings on environmental factors affecting gut microbiota colonization and interventions that may successfully alter microbial composition to discuss potential means of preventing T1D progression in at-risk children.
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Affiliation(s)
- He Zhou
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, 130021, China
| | - Lin Sun
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, 130021, China
| | - Siwen Zhang
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, 130021, China
| | - Xue Zhao
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, 130021, China
| | - Xiaokun Gang
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, 130021, China
| | - Guixia Wang
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, 130021, China.
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Tonon KM, Morais TB, Taddei CR, Araújo-Filho HB, Abrão ACFV, Miranda A, de Morais MB. Gut microbiota comparison of vaginally and cesarean born infants exclusively breastfed by mothers secreting α1-2 fucosylated oligosaccharides in breast milk. PLoS One 2021; 16:e0246839. [PMID: 33556125 PMCID: PMC7870049 DOI: 10.1371/journal.pone.0246839] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 01/26/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Exclusive breastfeeding promotes beneficial modifications on the microbiota of cesarean born infants, but little is known about the role of specific breast milk components in this modulation. Women with an active FUT2 gene (called secretors) secrete α1-2 fucosylated human milk oligosaccharides (HMOs), which promote Bifidobacterium in the infant's gut and may modulate the microbiota of cesarean born infants. OBJECTIVE To compare the microbiota composition of cesarean and vaginally born infants breastfed by secretor mothers. METHODS Maternal secretor status was determined by the occurrence of 4 different α1-2 fucosylated HMOs in breast milk by LC-MS. The fecal microbiota composition from cesarean and vaginally born infants was analyzed by 16S rRNA gene sequencing and qPCR, stratified by the maternal secretor status, and compared. RESULTS Alpha and beta diversity were not significantly different in cesarean born, secretor-fed infants (CSe+) compared to vaginally born, secretor-fed infants (VSe+). There were no significant differences in the fecal relative abundance of Bifidobacterium between CSe+ and VSe+ infants, but the prevalence of the species B. longum was lower in CSe+. The fecal relative abundance of Bacteroides was also lower, while Akkermansia and Kluyvera were higher in CSe+ infants. CONCLUSION Cesarean and vaginally born infants fed with breast milk containing the α1-2 fucosylated HMOs fraction present similar amounts of Bifidobacterium in the feces, but differences are observed in other members of the microbiota.
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Affiliation(s)
- Karina M. Tonon
- Nutrition Postgraduate Program, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Tania B. Morais
- Food Quality Control Laboratory, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Carla R. Taddei
- Department of Clinical and Toxicological Analysis, Universidade de São Paulo, São Paulo, Brazil
- School of Arts, Sciences and Humanities, Universidade de São Paulo, São Paulo, Brazil
| | | | - Ana Cristina F. V. Abrão
- Breastfeeding Incentive and Support Center, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Antonio Miranda
- Department of Biophysics, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Mauro B. de Morais
- Division of Pediatric Gastroenterology, Universidade Federal de São Paulo, São Paulo, Brazil
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Ratsika A, Codagnone MC, O’Mahony S, Stanton C, Cryan JF. Priming for Life: Early Life Nutrition and the Microbiota-Gut-Brain Axis. Nutrients 2021; 13:423. [PMID: 33525617 PMCID: PMC7912058 DOI: 10.3390/nu13020423] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 01/21/2021] [Accepted: 01/24/2021] [Indexed: 12/18/2022] Open
Abstract
Microbes colonize the human body during the first moments of life and coexist with the host throughout the lifespan. Intestinal microbiota and their metabolites aid in the programming of important bodily systems such as the immune and the central nervous system during critical temporal windows of development, with possible structural and functional implications throughout the lifespan. These critical developmental windows perinatally (during the first 1000 days) are susceptible timepoints for insults that can endure long lasting effects on the microbiota-gut-brain axis. Environmental and parental factors like host genetics, mental health, nutrition, delivery and feeding mode, exposure to antibiotics, immune activation and microbiota composition antenatally, are all factors that are able to modulate the microbiota composition of mother and infant and may thus regulate important bodily functions. Among all these factors, early life nutrition plays a pivotal role in perinatal programming and in the modulation of offspring microbiota from birth throughout lifespan. This review aims to present current data on the impact of early life nutrition and microbiota priming of important bodily systems and all the factors influencing the microbial coexistence with the host during early life development.
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Affiliation(s)
- Anna Ratsika
- APC Microbiome Ireland, Biosciences Institute, University College Cork, Cork T12 YT20, Ireland; (A.R.); (M.C.C.); (S.O.); (C.S.)
- Department of Anatomy and Neuroscience, University College Cork, Cork T12 YT20, Ireland
| | - Martin C. Codagnone
- APC Microbiome Ireland, Biosciences Institute, University College Cork, Cork T12 YT20, Ireland; (A.R.); (M.C.C.); (S.O.); (C.S.)
- Department of Anatomy and Neuroscience, University College Cork, Cork T12 YT20, Ireland
| | - Siobhain O’Mahony
- APC Microbiome Ireland, Biosciences Institute, University College Cork, Cork T12 YT20, Ireland; (A.R.); (M.C.C.); (S.O.); (C.S.)
- Department of Anatomy and Neuroscience, University College Cork, Cork T12 YT20, Ireland
| | - Catherine Stanton
- APC Microbiome Ireland, Biosciences Institute, University College Cork, Cork T12 YT20, Ireland; (A.R.); (M.C.C.); (S.O.); (C.S.)
- Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork T12 YT20, Ireland
- Teagasc Food Research Centre, Moorepark, Fermoy P61 C996, Ireland
| | - John F. Cryan
- APC Microbiome Ireland, Biosciences Institute, University College Cork, Cork T12 YT20, Ireland; (A.R.); (M.C.C.); (S.O.); (C.S.)
- Department of Anatomy and Neuroscience, University College Cork, Cork T12 YT20, Ireland
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