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https://www.readbyqxmd.com/read/28936496/h-pylori-%C3%AE-1-3-4-fucosyltransferase-hp3-4ft-catalyzed-one-pot-multienzyme-opme-synthesis-of-lewis-antigens-and-human-milk-fucosides
#1
Hai Yu, Yanhong Li, Zhigang Wu, Lei Li, Jie Zeng, Chao Zhao, Yijing Wu, Nova Tasnima, Jing Wang, Huaide Liu, Madhusudhan Reddy Gadi, Wanyi Guan, Peng G Wang, Xi Chen
Helicobacter pylori α1-3/4-fucosyltransferase (Hp3/4FT) was expressed in Escherichia coli at a level of 30 mg L(-1) culture and used as a diverse catalyst in a one-pot multienzyme (OPME) system for high-yield production of l-fucose-containing carbohydrates including Lewis antigens such as Lewis a, b, and x, O-sulfated Lewis x, and sialyl Lewis x and human milk fucosides such as 3-fucosyllactose (3-FL), lacto-N-fucopentaose (LNFP) III, and lacto-N-difuco-hexaose (LNDFH) II and III. Noticeably, while difucosylation of tetrasaccharides was readily achieved using an excess amount of donor, the synthesis of LNFP III was achieved by Hp3/4FT-catalyzed selective fucosylation of the N-acetyllactosamine (LacNAc) component in lacto-N-neotetraose (LNnT)...
September 22, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28903176/assessment-of-pcbs-and-exposure-risk-to-infants-in-breast-milk-of-primiparae-and-multiparae-mothers-in-an-electronic-waste-hot-spot-and-non-hot-spot-areas-in-ghana
#2
Anita Asamoah, David Kofi Essumang, Jens Muff, Sergey V Kucheryavskiy, Erik Gydesen Søgaard
The aim of the study was to assess the levels of PCBs in the breast milk of some Ghanaian women at suspected hotspot and relatively non-hotspot areas and to find out if the levels of these PCBs pose any risk to the breastfed infants. A total of 128 individual human breast milk were sampled from both primiparae and multiparae mothers. The levels of PCBs in the milk samples were compared. Some of these mothers (105 individuals) work or reside in and around Agbogbloshie (hot-spot), the largest electric and electronic waste dump and recycling site in Accra, Ghana...
September 9, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28858132/a-retrospective-study-on-the-effects-of-exclusive-donor-human-milk-feeding-in-a-short-period-after-birth-on-morbidity-and-growth-of-preterm-infants-during-hospitalization
#3
Eun Jeong Kim, Na Mi Lee, Sung-Hoon Chung
The risks and benefits of feeding preterm formula (PF) versus donor human milk (DHM) in preterm infants are uncertain, and studies evaluating the efficacy of DHM to the morbidities and growth of preterm infants in the neonatal intensive care unit are confused by the need for milk fortification. We aimed to determine and compare the outcome of short-term morbidities in neonatal intensive care unit and growth between premature infants fed exclusively DHM only until a volume of 130 mL/kg/d of enteral feeding was achieved and infants fed with a PF mix after birth...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28829161/cost-and-cost-effectiveness-of-donor-human-milk-to-prevent-necrotizing-enterocolitis-systematic-review
#4
Abigail Buckle, Celia Taylor
BACKGROUND: Necrotizing enterocolitis (NEC) is a costly gastrointestinal disorder that mainly affects preterm and low-birth-weight infants and can lead to considerable morbidity and mortality. Mother's own milk is protective against NEC but is not always available. In such cases, donor human milk has also been shown to be protective (although to a lesser extent) compared with formula milk, but it is more expensive. This systematic review aimed at evaluating the cost of donor milk, the cost of treating NEC, and the cost-effectiveness of exclusive donor milk versus formula milk feeding to reduce the short-term health and treatment costs of NEC...
August 22, 2017: Breastfeeding Medicine: the Official Journal of the Academy of Breastfeeding Medicine
https://www.readbyqxmd.com/read/28822444/-progress-in-studies-on-human-milk-bank-and-donor-human-milk
#5
Z B Yu, S P Han
No abstract text is available yet for this article.
August 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28822435/-characteristics-of-the-chinese-human-milk-banks-operation
#6
(no author information available yet)
Objective: To assess the operation status of human milk banks in the mainland of China. Method: This retrospective study included a consecutive series of 14 human milk banks in the mainland of China from March 2013 to December 2016. The opened date, condition of donated breast milk, characteristics of donors and clinical application of donated breast milk were analyzed. Result: There were 14 human milk banks successively founded in mainland China from March 2013 to December 2016. The number of human milk banks, the amount of donated breast milk, the number of eligible donors and the times of donation had increased each year...
August 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28768852/septic-episodes-in-a-premature-infant-after-in-utero-exposure-to-rituximab
#7
Susanne Hay, Sandra Burchett, Oreofe Odejide, Sule Cataltepe
Rituximab is an increasingly used immunotherapeutic agent for women of reproductive age for treatment of autoimmune diseases, leukemias, and lymphomas. Rituximab is a chimeric monoclonal antibody that targets B-cell surface antigen CD20 and can cross the placenta. Current evidence of the impact of this medication on the developing fetus is limited, but there is little to suggest that fetal exposure to this medication places an infant at increased risk of immunosuppression and subsequent infection. Here we report a case of in utero rituximab exposure that was associated with 2 severe septic episodes with Enterococcus faecalis, in a premature infant of 29 weeks' gestational age with a birth weight of 820 g...
September 2017: Pediatrics
https://www.readbyqxmd.com/read/28764968/production-of-human-milk-oligosaccharides-by-enzymatic-and-whole-cell-microbial-biotransformations
#8
Georg A Sprenger, Florian Baumgärtner, Christoph Albermann
Human milk oligosaccharides (HMO) are almost unique constituents of breast milk and are not found in appreciable amounts in cow milk. Due to several positive aspects of HMO for the development, health, and wellbeing of infants, production of HMO would be desirable. As a result, scientists from different disciplines have developed methods for the preparation of single HMO compounds. Here, we review approaches to HMO preparation by (chemo-)enzymatic syntheses or by whole-cell biotransformation with recombinant bacterial cells...
July 29, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28749825/a-fortified-donor-milk-policy-is-associated-with-improved-in-hospital-head-growth-and-weight-gain-in-very-low-birth-weight-infants
#9
Gemma Ginovart, Ignasi Gich, Antonio Gutiérrez, Sergio Verd
BACKGROUND: Previous research has reported that infants fed donor milk grow slower than those fed formula. However, most of the trials used unfortified donor milk, which limits the ability to generalize the results to current clinical practice. PURPOSE: To evaluate the impact of early human milk feeding (donor milk and/or mother's own milk) with standard fortification on in-hospital growth of very low-birth-weight infants. METHODS: This pre-/postretrospective study included selected newborn infants less than 1500 g admitted to a level IV neonatal intensive care unit before and after the introduction of a policy providing donor milk when mother's own milk was not available in sufficient quantity to meet her infant's need...
August 2017: Advances in Neonatal Care: Official Journal of the National Association of Neonatal Nurses
https://www.readbyqxmd.com/read/28742378/effect-of-the-various-steps-in-the-processing-of-human-milk-in-the-concentrations-of-iga-igm-and-lactoferrin
#10
Gerardo Arroyo, Kevin Alexander Ortiz Barrientos, Karla Lange, Federico Nave, Gabriela Miss Mas, Pamela Lam Aguilar, Miguel Angel Soto Galindo
INTRODUCTION: Human milk immune components are unique and important for the development of the newborn. Milk processing at the Human Milk Banks (HMB), however, causes partial destruction of immune proteins. The objective of this study was to determine the effects that heating during the milk processing procedure at the HMB had on the concentrations of IgA, IgM, and lactoferrin at three critical points in time. MATERIALS AND METHODS: Fifty milk samples (150 mL) were collected from voluntary donors at the HMB at the Hospital Nacional Pedro de Bethancourt, located in Antigua Guatemala...
September 2017: Breastfeeding Medicine: the Official Journal of the Academy of Breastfeeding Medicine
https://www.readbyqxmd.com/read/28740388/role-of-tim-4-in-exosome-dependent-entry-of-hiv-1-into-human-immune-cells
#11
Brian Sims, Anitra L Farrow, Sparkle D Williams, Anju Bansal, Alexandre Krendelchtchikov, Linlin Gu, Qiana L Matthews
Exosomes, 30-200 nm nanostructures secreted from donor cells and internalized by recipient cells, can play an important role in the cellular entry of some viruses. These microvesicles are actively secreted into various body fluids, including blood, urine, saliva, cerebrospinal fluid, and breast milk. We successfully isolated exosomes from human breast milk and plasma. The size and concentration of purified exosomes were measured by nanoparticle tracking, while Western blotting confirmed the presence of the exosomal-associated proteins CD9 and CD63, clathrin, and T cell immunoglobulin and mucin proteins (TIMs)...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28691975/stability-of-cortisol-and-cortisone-in-human-breast-milk-during-holder-pasteurization
#12
Bibian van der Voorn, Marita de Waard, Lisette R Dijkstra, Annemieke C Heijboer, Joost Rotteveel, Johannes B van Goudoever, Martijn J J Finken
Human donor milk is the feeding of choice for preterm infants, when own mother's milk is not available. Holder pasteurization is necessary to secure the safety of donor milk, although it can affect milk quality by reduction of nutritional and bioactive components. Recently, research has focused on the potential role of breast-milk glucocorticoids for infant development. At this moment, it is unknown whether pasteurization affects milk glucocorticoid levels. Therefore, we assessed whether Holder pasteurization, the most frequently used method nowadays, reduces breast-milk cortisol and cortisone levels, using breast milk samples from 30 women who delivered at term...
July 6, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28685670/milk-donor-blood-screening-for-hiv-syphilis-and-hepatitis-b-markers-in-a-brazilian-human-milk-bank-prevalence-time-trends-over-the-2005-2015-period
#13
Emil Kupek, Estela Olivo Savi
BACKGROUND: Human milk banking has been promoted to provide donated breast milk for at-risk children whose mothers cannot breastfeed them but this effort was hindered by the advent of HIV epidemic. OBJECTIVE: To estimate the seroprevalence of HIV, syphilis and hepatitis B in the blood of human milk donors registered in a major maternity hospital in the northern region of the Santa Catarina State, Brazil. METHODS: A retrospective study included serological tests for HIV, syphilis and hepatitis B screening of milk donor candidates in the 2005-2015 period...
July 7, 2017: Current HIV Research
https://www.readbyqxmd.com/read/28643867/transfusion-transmitted-cmv-infection%C3%A2-%C3%A2-current-knowledge-and-future-perspectives
#14
REVIEW
M Ziemann, T Thiele
Transmission of human cytomegalovirus (CMV) via transfusion (TT-CMV) may still occur and remains a challenge in the treatment of immunocompromised CMV-seronegative patients, e.g. after stem cell transplantation, and for low birthweight infants. Measures to reduce the risk of TT-CMV have been evaluated in clinical studies, including leucocyte depletion of cellular blood products and/or the selection of CMV-IgG-negative donations. Studies in large blood donor cohorts indicate that donations from newly CMV-IgG-positive donors should bear the highest risk for transmitting CMV infections because they contain the highest levels of CMV-DNA, and early CMV antibodies cannot neutralise CMV...
June 23, 2017: Transfusion Medicine
https://www.readbyqxmd.com/read/28636003/in-vitro-modulation-of-gut-microbiota-by-whey-protein-to-preserve-intestinal-health
#15
T Sánchez-Moya, R López-Nicolás, D Planes, C A González-Bermúdez, G Ros-Berruezo, C Frontela-Saseta
The effect of several types of whey milk - cow, sheep, goat and a mixture of them (60 : 20 : 20, respectively) - was assessed in the human gut microbiota. The prebiotic potential of these substrates was evaluated through in vitro gastrointestinal digestion following faecal batch culture fermentations (mimicking colonic fermentation) for 48 hours, using faeces from normal-weight (NW) and obese (OB) donors. Throughout the fermentation process, pH, gas production, short chain and branched fatty acids (SCFA-BCFA) were measured, as well as the changes of microbiota using qPCR...
September 20, 2017: Food & Function
https://www.readbyqxmd.com/read/28627820/performance-of-the-liaison%C3%A2-xl-murex-rechtlv-i-ii-immunoassay-in-the-detection-of-htlv-1-2-antibodies-in-serum
#16
Pierre Gantner, Aurelie Velay, Nicolas Guigue, Heidi Barth, Marie-Josee Wendling, Constance Delaugerre, Samira Fafi-Kremer
BACKGROUND: Human T-cell lymphotropic virus type 1 and 2 (HTLV-1/2) immunoassays are used for blood screen- ing from blood products, milk, and organ donors. METHODS: We assessed the performance of the DiaSorin Liaison® XL murex recHTLV-I/II immunoassay relative to the Abbott Architect® rHTLV-I/II immunoassay and with the Innogenetics immunoblot as confirmation. RESULTS: A panel of HTLV positive (n = 66) and negative (n = 30) sera was tested in both techniques within the same freeze/thaw cycle...
May 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28603716/optimizing-nutrition-in-preterm-low-birth-weight-infants-consensus-summary
#17
REVIEW
R Kishore Kumar, Atul Singhal, Umesh Vaidya, Saswata Banerjee, Fahmina Anwar, Shashidhar Rao
Preterm birth survivors are at a higher risk of growth and developmental disabilities compared to their term counterparts. Development of strategies to lower the complications of preterm birth forms the rising need of the hour. Appropriate nutrition is essential for the growth and development of preterm infants. Early administration of optimal nutrition to preterm birth survivors lowers the risk of adverse health outcomes and improves cognition in adulthood. A group of neonatologists, pediatricians, and nutrition experts convened to discuss and frame evidence-based recommendations for optimizing nutrition in preterm low birth weight (LBW) infants...
2017: Frontiers in Nutrition
https://www.readbyqxmd.com/read/28602109/air-and-water-processes-do-not-produce-the-same-high-quality-pasteurization-of-donor-human-milk
#18
Rachel Buffin, Pierre Pradat, Jocelyne Trompette, Isabelle Ndiaye, Eliane Basson, Isabelle Jordan, Jean-Charles Picaud
BACKGROUND: Holder pasteurization is the most commonly used technique in milk banks worldwide, but higher temperatures and longer pasteurization time have been associated with damage to the immune components of human milk. Research aim: This study aimed to assess the detailed pattern of pasteurization temperature using two water pasteurizers (WP1 and WP2) and one air pasteurizer (AP). METHODS: The milk temperature during each phase of the pasteurization cycle was recorded using 6 to 9 probes, depending on the number of bottles, in the pasteurizers...
June 1, 2017: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
https://www.readbyqxmd.com/read/28586632/antibody-profile-of-colostrum-and-the-effect-of-processing-in-human-milk-banks-implications-in-immunoregulatory-properties
#19
Claudio Rodríguez-Camejo, Arturo Puyol, Laura Fazio, Analía Rodríguez, Emilia Villamil, Eliana Andina, Vanira Cordobez, Hernán Díaz, Mary Lemos, Gabriela Siré, Lilián Carroscia, Mara Castro, Luis Panizzolo, Ana Hernández
BACKGROUND: When feeding preterm infants, donor milk is preferred if the mother's own milk is unavailable. Pasteurization may have detrimental effects on bioactivity, but more information is needed about its effects on the immunological compounds. Research aim: This work has two main aims: evaluate the antibody profile of colostrum and study the quantitative variations in the antibodies' level and specific reactivity after undergoing Holder pasteurization. The authors focused on immunoregulatory components of colostrum (antidietary antibodies and TGF-β2) in the neonatal gut...
June 1, 2017: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
https://www.readbyqxmd.com/read/28570820/human-milk-oligosaccharides-exhibit-antimicrobial-and-antibiofilm-properties-against-group-b-streptococcus
#20
Dorothy L Ackerman, Ryan S Doster, Jörn-Hendrik Weitkamp, David M Aronoff, Jennifer A Gaddy, Steven D Townsend
Streptococcus agalactiae (Group B Streptococcus, GBS) is a Gram-positive bacterial pathogen that causes invasive infections in both children and adults. During pregnancy, GBS is a significant cause of infection of the fetal membranes (chorioamnionitis), which can lead to intra-amniotic infection, preterm birth, stillbirth, and neonatal sepsis. Recently, breastfeeding has been thought to represent a potential mode of GBS transmission from mother to newborn, which might increase the risk for late-onset sepsis...
August 11, 2017: ACS Infectious Diseases
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