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Infant microbiota

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https://www.readbyqxmd.com/read/29142203/mode-of-delivery-and-child-and-adolescent-psychological-well-being-evidence-from-hong-kong-s-children-of-1997-birth-cohort
#1
Cherry Y Leung, Gabriel M Leung, C Mary Schooling
Mode of delivery (vaginal or cesarean section) is thought to affect gut microbiota, which in turn may affect psychological well-being. As such, mode of delivery is potentially a modifiable factor for psychological well-being. Here we examined the association of mode of delivery with child and adolescent psychological well-being. We used multivariable linear regression in a population-representative Hong Kong Chinese birth cohort, "Children of 1997," to examine the adjusted associations of mode of delivery with behavioral problems assessed from parent-reported Rutter score at ~7 (n = 6294) and ~11 years (n = 5598), self-esteem assessed from self-reported Culture-Free Self-Esteem Inventory score at ~11 years (n = 6937) and depressive symptoms assessed from self-reported Patient Health Questionnaire-9 score at ~13 years (n = 5797)...
November 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29137266/correlation-of-placental-microbiota-with-fetal-macrosomia-and-clinical-characteristics-in-mothers-and-newborns
#2
Jia Zheng, Xin-Hua Xiao, Qian Zhang, Li-Li Mao, Miao Yu, Jian-Ping Xu, Tong Wang
Substantial studies indicated that fetal macrosomia was associated with detrimental pregnancy outcomes, and increased susceptibility to metabolic diseases in later life. However, investigations into the association between placental microbiota and fetal macrosomia are limited. We aimed to profile the placental microbiota of fetal macrosomia and study whether they relate to clinical characteristics. Placenta samples were collected from fetal macrosomias and newborns with normal birth weight. The clinical characteristics, umbilical cord blood parameters were measured, and placental microbiota were sequenced and further analysed...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29136611/gut-microbiota-in-health-and-disease
#3
Yuichiro Yamashiro
Intestinal regulatory T (Treg) cells are critical to maintaining immune tolerance to dietary antigens and gut microbiota. This paper reviews several papers on this topic that were recently published by Japanese researchers. Specifically, Prof. K. Honda and his group have found that commensal microbiota capable of metabolizing butyrate induces the differentiation of colonic Treg cells. In a separate work, Prof. Y. Yokoyama and his group used a novel, culture-independent analytical method (the Yakult Intestinal Flora-Scan) for detection of bacteria in the bloodstream...
November 14, 2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/29132666/prevention-of-food-allergies
#4
REVIEW
Jennifer J Koplin, Rachel L Peters, Katrina J Allen
This review summarizes the current state of play with regard to food allergy prevention. Food allergy prevention strategies focused on promoting timely introduction of allergenic foods (predominantly peanut) into the infant diet have recently been introduced in several countries. Additional prevention strategies currently under investigation include optimizing infant vitamin D levels, modulating the gut microbiota through use of probiotics, and preventing eczema to reduce the risk of food sensitization through a damaged skin barrier...
February 2018: Immunology and Allergy Clinics of North America
https://www.readbyqxmd.com/read/29128935/associations-between-birthweight-gestational-age-at-birth-and-subsequent-type-1-diabetes-in-children-under-12-a-retrospective-cohort-study-in-england-1998-2012
#5
Raphael R Goldacre
AIMS/HYPOTHESIS: With genetics thought to explain only 40-50% of the total risk of type 1 diabetes, environmental risk factors in early life have been proposed. Previous findings from studies of type 1 diabetes incidence by birthweight and gestational age at birth have been inconsistent. This study aimed to investigate the relationships between birthweight, gestational age at birth and subsequent type 1 diabetes in England. METHODS: Data were obtained from a population-based database comprising linked mother-infant pairs using English national Hospital Episode Statistics from 1998 to 2012...
November 11, 2017: Diabetologia
https://www.readbyqxmd.com/read/29121673/influence-of-vitamin-d-on-key-bacterial-taxa-in-infant-microbiota-in-the-koala-birth-cohort-study
#6
Chris E Talsness, John Penders, Eugène H J M Jansen, Jan Damoiseaux, Carel Thijs, Monique Mommers
Vitamin D has immunomodulatory properties giving it the potential to affect microbial colonization of the intestinal tract. We investigated whether maternal vitamin D supplemention, maternal plasma 25-hydroxyvitamin D concentration, or direct supplementation of the infant influences key bacterial taxa within microbiota of one month old infants. Infant and maternal vitamin D supplement use was ascertained via questionnaires. Maternal plasma 25-hydroxyvitamin D was determined at approximately the 36th week of pregnancy...
2017: PloS One
https://www.readbyqxmd.com/read/29120455/manipulating-the-microbiome-evolution-of-a-strategy-to-prevent-s-aureus-disease-in-children
#7
D F Khamash, A Voskertchian, A M Milstone
Hospitalized infants have the highest rates of invasive Staphylococcus aureus disease of any population and infection control strategies such as decolonization have been insufficient. For decades, researchers began studying the microbiome in search of new prevention strategies. The resident microbiota was found to be closely associated with susceptibility and at times, resistance to S. aureus colonization. The evolution of nucleic acid based techniques has enhanced our understanding of the complex relationship between the nasal microbiota and S...
November 9, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/29118752/role-of-the-human-breast-milk-associated-microbiota-on-the-newborns-immune-system-a-mini-review
#8
REVIEW
Marco Toscano, Roberta De Grandi, Enzo Grossi, Lorenzo Drago
The human milk is fundamental for a correct development of newborns, as it is a source not only of vitamins and nutrients, but also of commensal bacteria. The microbiota associated to the human breast milk contributes to create the "initial" intestinal microbiota of infants, having also a pivotal role in modulating and influencing the newborns' immune system. Indeed, the transient gut microbiota is responsible for the initial change from an intrauterine Th2 prevailing response to a Th1/Th2 balanced one. Bacteria located in both colostrum and mature milk can stimulate the anti-inflammatory response, by stimulating the production of specific cytokines, reducing the risk of developing a broad range of inflammatory diseases and preventing the expression of immune-mediated pathologies, such as asthma and atopic dermatitis...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29118383/impact-of-lactobacillus-reuteri-colonization-on-gut-microbiota-inflammation-and-crying-time-in-infant-colic
#9
Monica L Nation, Eileen M Dunne, Shayne J Joseph, Fiona K Mensah, Valerie Sung, Catherine Satzke, Mimi L K Tang
Infant colic is a distressing condition of unknown etiology. An aberrant gastrointestinal microbiota has been associated, and Lactobacillus reuteri supplementation has been shown to reduce crying and/or fussing time ('crying time') in some infants with colic. The relationship between L. reuteri gut colonization and crying time has not been examined. We investigated the relationship between L. reuteri colonization and fecal microbiota (microbial diversity and Escherichia coli), intestinal inflammation, and crying time in infants with colic, using a subset of 65 infants from the Baby Biotics trial, which randomized healthy term infants aged <13 weeks with infant colic to receive probiotic L...
November 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29118049/the-first-microbial-colonizers-of-the-human-gut-composition-activities-and-health-implications-of-the-infant-gut-microbiota
#10
REVIEW
Christian Milani, Sabrina Duranti, Francesca Bottacini, Eoghan Casey, Francesca Turroni, Jennifer Mahony, Clara Belzer, Susana Delgado Palacio, Silvia Arboleya Montes, Leonardo Mancabelli, Gabriele Andrea Lugli, Juan Miguel Rodriguez, Lars Bode, Willem de Vos, Miguel Gueimonde, Abelardo Margolles, Douwe van Sinderen, Marco Ventura
The human gut microbiota is engaged in multiple interactions affecting host health during the host's entire life span. Microbes colonize the neonatal gut immediately following birth. The establishment and interactive development of this early gut microbiota are believed to be (at least partially) driven and modulated by specific compounds present in human milk. It has been shown that certain genomes of infant gut commensals, in particular those of bifidobacterial species, are genetically adapted to utilize specific glycans of this human secretory fluid, thus representing a very intriguing example of host-microbe coevolution, where both partners are believed to benefit...
December 2017: Microbiology and Molecular Biology Reviews: MMBR
https://www.readbyqxmd.com/read/29096601/optimisation-of-16s-rrna-gut-microbiota-profiling-of-extremely-low-birth-weight-infants
#11
Cristina Alcon-Giner, Shabhonam Caim, Suparna Mitra, Jennifer Ketskemety, Udo Wegmann, John Wain, Gusztav Belteki, Paul Clarke, Lindsay J Hall
BACKGROUND: Infants born prematurely, particularly extremely low birth weight infants (ELBW) have altered gut microbial communities. Factors such as maternal health, gut immaturity, delivery mode, and antibiotic treatments are associated with microbiota disturbances, and are linked to an increased risk of certain diseases such as necrotising enterocolitis. Therefore, there is a requirement to optimally characterise microbial profiles in this at-risk cohort, via standardisation of methods, particularly for studying the influence of microbiota therapies (e...
November 2, 2017: BMC Genomics
https://www.readbyqxmd.com/read/29070544/excess-iron-intake-as-a-factor-in-growth-infections-and-development-of-infants-and-young-children
#12
REVIEW
Bo Lönnerdal
The provision of iron via supplementation or the fortification of foods has been shown to be effective in preventing and treating iron deficiency and iron deficiency anemia in infants and young children. However, iron is a pro-oxidative element and can have negative effects on biological systems even at moderate amounts. An increasing number of studies have reported adverse effects of iron that was given to infants and young-children populations who initially were iron replete. These effects include decreased growth (both linear growth and weight), increased illness (usually diarrhea), interactions with other trace elements such as copper and zinc, altered gut microbiota to more pathogenic bacteria, increased inflammatory markers, and impaired cognitive and motor development...
October 25, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29069100/gut-microbiome-of-mothers-delivering-prematurely-shows-reduced-diversity-and-lower-relative-abundance-of-bifidobacterium-and-streptococcus
#13
Cecilie Dahl, Maggie Stanislawski, Nina Iszatt, Siddhartha Mandal, Catherine Lozupone, Jose C Clemente, Rob Knight, Hein Stigum, Merete Eggesbø
OBJECTIVE: Preterm birth is the main reason for neonatal deaths worldwide. We investigate whether maternal gut microbiota may play a previously overlooked role. METHODS: The Norwegian Microbiota Study (NoMIC) is a case control study on preterm birth (<259 days of gestation, calculated primarily based on the last menstrual period), including two consecutively born term infants per infant born prematurely. Eligible mothers were fluent in Norwegian and recruited from the maternity ward at a county hospital in Eastern Norway in the period 2002-2005...
2017: PloS One
https://www.readbyqxmd.com/read/29067020/inheritance-and-establishment-of-gut-microbiota-in-chickens
#14
Jinmei Ding, Ronghua Dai, Lingyu Yang, Chuan He, Ke Xu, Shuyun Liu, Wenjing Zhao, Lu Xiao, Lingxiao Luo, Yan Zhang, He Meng
In mammals, the microbiota can be transmitted from the placenta, uterus, and vagina of the mother to the infant. Unlike mammals, development of the avian embryo is a process isolated from the mother and thus in the avian embryo the gut microbial developmental process remains elusive. To explore the establishment and inheritance of the gut microbiome in the avian embryo, we used the chicken as the model organism to investigate the gut microbial composition in embryos, chicks, and maternal hens. We observed: (1) 28 phyla and 162 genera of microbes in embryos where the dominated genus was Halomonas (79%)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29056933/linking-the-gut-microbial-ecosystem-with-the-environment-does-gut-health-depend-on-where-we-live
#15
Nishat Tasnim, Nijiati Abulizi, Jason Pither, Miranda M Hart, Deanna L Gibson
Global comparisons reveal a decrease in gut microbiota diversity attributed to Western diets, lifestyle practices such as caesarian section, antibiotic use and formula-feeding of infants, and sanitation of the living environment. While gut microbial diversity is decreasing, the prevalence of chronic inflammatory diseases such as inflammatory bowel disease, diabetes, obesity, allergies and asthma is on the rise in Westernized societies. Since the immune system development is influenced by microbial components, early microbial colonization may be a key factor in determining disease susceptibility patterns later in life...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29053703/development-of-severe-bronchopulmonary-dysplasia-is-associated-with-alterations-in-fecal-volatile-organic-compounds
#16
Daniel J C Berkhout, Hendrik J Niemarkt, Marc A Benninga, Andries E Budding, Anton H van Kaam, Boris W Kramer, Charlene M Pantophlet, Mirjam M van Weissenbruch, Nanne K H de Boer, Tim G J de Meij
BackgroundAim of this study was to evaluate the potential of fecal volatile organic compounds (VOC), obtained by means of an electronic nose device (Cyranose 320®), as early non-invasive biomarker for BPD.MethodsIn this nested case-control study performed at three Neonatal Intensive Care Units, fecal samples obtained at postnatal age of 7, 14, 21 and 28 days, from preterm infants with severe BPD, were compared with fecal VOC profiles from matched controls. Microbiota analysis was performed by means of IS-pro technique on fecal samples collected at 28 days postnatally...
October 20, 2017: Pediatric Research
https://www.readbyqxmd.com/read/29049378/immune-modulatory-genomic-properties-differentiate-gut-microbiota-of-infants-with-and-without-eczema
#17
Seungdae Oh, Gaik Chin Yap, Pei-Ying Hong, Chiung-Hui Huang, Marion M Aw, Lynette Pei-Chi Shek, Wen-Tso Liu, Bee Wah Lee
Gut microbiota play an important role in human immunological processes, potentially affecting allergic diseases such as eczema. The diversity and structure of gut microbiota in infants with eczema have been previously documented. This study aims to evaluate by comparative metagenomics differences in genetic content in gut microbiota of infants with eczema and their matched controls. Stools were collected at the age of one month old from twelve infants from an at risk birth cohort in a case control manner. Clinical follow up for atopic outcomes were carried out at the age of 12 and 24 months...
2017: PloS One
https://www.readbyqxmd.com/read/29040820/systematic-review-of-the-effect-of-enteral-feeding-on-gut-microbiota-in-preterm-infants
#18
Wanli Xu, Michelle Judge, Kendra Maas, Naveed Hussain, Jacqueline M McGrath, Wendy A Henderson, Xiaomei Cong
OBJECTIVE: To examine the effect of feeding type on microbial patterns among preterm infants and to identify feeding factors that promote the colonization of beneficial bacteria. DATA SOURCES: PubMed, Cochrane Database of Systematic Reviews, Scopus, and the Cummulative Index of Nursing and Allied Health Literature were thoroughly searched for articles published between January 2000 and January 2017, using the keywords gut microbiome, gut microbiota, enteral microbiome, enteral microbiota, premature infant, preterm infant, extremely low birth weight infant, ELBW infant, very low birth weight infant, feeding, breast milk, breastfeeding, formula, prebiotic, probiotic, and long chain polyunsaturated fatty acid...
October 14, 2017: Journal of Obstetric, Gynecologic, and Neonatal Nursing: JOGNN
https://www.readbyqxmd.com/read/29030459/household-triclosan-and-triclocarban-effects-on-the-infant-and-maternal-microbiome
#19
Jessica V Ribado, Catherine Ley, Thomas D Haggerty, Ekaterina Tkachenko, Ami S Bhatt, Julie Parsonnet
In 2016, the US Food and Drug Administration banned the use of specific microbicides in some household and personal wash products due to concerns that these chemicals might induce antibiotic resistance or disrupt human microbial communities. Triclosan and triclocarban (referred to as TCs) are the most common antimicrobials in household and personal care products, but the extent to which TC exposure perturbs microbial communities in humans, particularly during infant development, was unknown. We conducted a randomized intervention of TC-containing household and personal care products during the first year following birth to characterize whether TC exposure from wash products perturbs microbial communities in mothers and their infants...
October 13, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/29026146/multiple-approaches-detect-the-presence-of-fungi-in-human-breastmilk-samples-from-healthy-mothers
#20
Alba Boix-Amorós, Cecilia Martinez-Costa, Amparo Querol, Maria Carmen Collado, Alex Mira
Human breastmilk contains a variety of bacteria that are transmitted to the infant and have been suggested to contribute to gut microbiota development and immune maturation. However, the characterization of fungal organisms in milk from healthy mothers is currently unknown although their presence has been reported in the infant gut and also in milk from other mammals. Breastmilk samples from healthy lactating mothers (n = 65) within 1 month after birth were analyzed. Fungal presence was assessed by different techniques, including microscopy, growth and identification of cultured isolates, fungal load estimation by qPCR, and fungal composition using 28S rRNA gene high-throughput sequencing...
October 12, 2017: Scientific Reports
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