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https://www.readbyqxmd.com/read/29221760/substrate-specificity-and-transfucosylation-activity-of-gh29-%C3%AE-l-fucosidases-for-enzymatic-production-of-human-milk-oligosaccharides
#1
Birgitte Zeuner, Jan Muschiol, Jesper Holck, Mateusz Lezyk, Mattias Raae Gedde, Carsten Jers, Jørn Dalgaard Mikkelsen, Anne S Meyer
Human milk oligosaccharides (HMOs) constitute a unique family of bioactive lactose-based molecules present in human breast milk. HMOs are of major importance for infant health and development but also virtually absent from bovine milk used for infant formula. Among the HMOs, the fucosylated species are the most abundant. Transfucosylation catalysed by retaining α-L-fucosidases is a new route for manufacturing biomimetic HMOs. Seven α-L-fucosidases from glycosyl hydrolase family 29 were expressed, characterized in terms of substrate specificity and thermal stability, and shown to be able to catalyse transfucosylation...
December 5, 2017: New Biotechnology
https://www.readbyqxmd.com/read/29200355/comparing-the-effects-of-reference-pricing-and-centers-of-excellence-approaches-to-value-based-benefit-design
#2
Hui Zhang, David W Cowling, Matthew Facer
Various health insurance benefit designs based on value-based purchasing have been promoted to steer patients to high-value providers, but little is known about the designs' relative effectiveness and underlying mechanisms. We compared the impact of two designs implemented by the California Public Employees' Retirement System on inpatient hospital total hip or knee replacement: a reference-based pricing design for preferred provider organizations (PPOs) and a centers-of-excellence design for health maintenance organizations (HMOs)...
December 2017: Health Affairs
https://www.readbyqxmd.com/read/29183179/taking-a-prebiotic-approach-to-early-immunomodulation-for-allergy-prevention
#3
Rachelle Pretorius, Susan L Prescott, Debra J Palmer
With increasing focus on nutritional strategies to counter the rising global burden of allergic disease, there has been a particular focus on prebiotic nutrients that are selectively utilized by host microorganisms to confer potential immunomodulatory benefits for disease prevention. Areas covered: In this review we examine maternal and infant dietary sources of prebiotics with a particular focus on non-digestible oligosaccharides, which undergo microbial fermentation by commensal gut bacteria to produce short chain fatty acids (SCFA)...
December 1, 2017: Expert Review of Clinical Immunology
https://www.readbyqxmd.com/read/29169133/alterations-of-mitochondrial-antioxidant-indexes-and-apoptosis-in-duck-livers-caused-by-molybdenum-or-and-cadmium
#4
Xueyan Dai, Chenghong Xing, Huabin Cao, Junrong Luo, Tiancheng Wang, Ping Liu, Xiaoquan Guo, Guoliang Hu, Caiying Zhang
Cadmium (Cd) and high Molybdenum (Mo) can lead to adverse reactions on animals, but the co-induced toxicity of Mo and Cd to liver in ducks was not well understood. To investigate the co-induced toxic effects of Mo combined with Cd on mitochondrial oxidative stress and apoptosis in duck livers. 240 healthy 11-day-old ducks were randomly divided into 6 groups (control, LMo group, HMo group, Cd group, LMoCd group and HMoCd group). After being treated for 30, 60, 90 and 120 days, liver mitochondrial antioxidant indexes, ceruloplasmin (CP), metallothionein (MT), Bak-1 and Caspase-3 genes mRNA expression levels, and ultrastructural changes were evaluated...
November 14, 2017: Chemosphere
https://www.readbyqxmd.com/read/29124935/enzymatic-and-chemoenzymatic-syntheses-of-disialyl-glycans-and-their-necrotizing-enterocolitis-preventing-effects
#5
Hai Yu, Xuebin Yan, Chloe A Autran, Yanhong Li, Sabrina Etzold, Joanna Latasiewicz, Bianca M Robertson, Jiaming Li, Lars Bode, Xi Chen
Necrotizing enterocolitis (NEC) is one of the most common and devastating intestinal disorders in preterm infants. Therapies to meet the clinical needs for this special and highly vulnerable population are extremely limited. A specific human milk oligosaccharide (HMO), disialyllacto-N-tetraose (DSLNT), was shown to contribute to the beneficial effects of breastfeeding as it prevented NEC in a neonatal rat model and was associated with lower NEC risk in a human clinical cohort study. Herein, gram-scale synthesis of two DSLNT analogs previously shown to have NEC preventing effect is described...
November 10, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/29108433/the-human-milk-oligosaccharides-are-not-affected-by-pasteurization-and-freeze-drying
#6
Won-Ho Hahn, Jaehan Kim, Seunghyun Song, Suyeon Park, Nam Mi Kang
OBJECTIVES: Human milk oligosaccharides (HMOs) are known as important factors in neurologic and immunologic development of neonates. Moreover, freeze-drying seems to be a promising storage method to improve the processes of human milk banks. However, the effects of pasteurization and freeze-drying on HMOs were not evaluated yet. The purpose of this study is to analyze and compare the HMOs profiles of human milk collected before and after the pasteurization and freeze-drying. METHODS: Totally nine fresh human milk samples were collected from three healthy mothers at the first, second, and third week after delivery...
November 6, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29103653/enhanced-lead-and-cadmium-removal-using-biochar-supported-hydrated-manganese-oxide-hmo-nanoparticles-behavior-and-mechanism
#7
Shunli Wan, Jiayu Wu, Shanshan Zhou, Rui Wang, Bin Gao, Feng He
Hydrated manganese oxide (HMO) nanoparticles were impregnated into a peanut shell-derived biochar (BC) to obtain a remarkable nanocomposite adsorbent, HMO-BC, which overcomes the technical barriers of singly applying either HMO or BC in practical heavy metal-containing wastewater treatment. HMO-BC can effectively sequestrate Pb(II) and Cd(II) in a wide pH range of 3-7 and exhibited more preferable sorption than bare BC in the presence of high-level competing cations. BC also significantly lowered the Mn leaching at acidic pH...
November 2, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29034748/demographic-and-neonatal-risk-factors-for-childhood-asthma-in-the-usa
#8
David A Geier, Janet K Kern, Mark R Geier
OBJECTIVE: Asthma is the most common chronic condition diagnosed among children worldwide according to the World Health Organization (WHO). This study evaluated on a longitudinal basis prospectively collected medical records for demographic and neonatal information among USA (USA) children diagnosed with childhood asthma in comparison to controls. DESIGN: The vaccine safety data link (VSD) database was examined to identify cases (n = 5907) diagnosed with International Classification of Disease, ninth revision (ICD-9) healthcare provider diagnosed childhood asthma (493...
October 16, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29030889/activating-inert-alkali-metal-ions-by-electron-transfer-from-manganese-oxide-for-formaldehyde-abatement
#9
Jiayi Gao, Zhiwei Huang, Yaxin Chen, Jing Wan, Xiao Gu, Zhen Ma, Jianmin Chen, Xingfu Tang
Alkali metal ions often act as promoters rather than active components due to their stable outermost electronic configurations and their inert properties in heterogeneous catalysis. Herein, we activate inert alkali metal ions such as K+ and Rb+ by electron transfer from hollandite-type manganese oxide (HMO) support for HCHO oxidation. Results from synchrotron X-ray diffraction, absorption, and photoelectron spectroscopies demonstrate that the electronic density of states of single alkali metal adatoms is much higher than that of K+ or Rb+, because electrons transfer from manganese to the alkali metal adatoms through bridging lattice oxygen...
October 14, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28945208/digestion-of-human-milk-oligosaccharides-by-bifidobacterium-breve-in-the-premature-infant
#10
Mark A Underwood, Jasmine C C Davis, Karen M Kalanetra, Sanjay Gehlot, Sanjay Patole, Daniel J Tancredi, David A Mills, Carlito B Lebrilla, Karen Simmer
OBJECTIVE: The aim of this study was to measure consumption and absorption of human milk oligosaccharides (HMOs) in a cohort of premature infants treated with probiotic Bifidobacterium breve. METHODS: Twenty-nine premature infants (median gestational age 28 weeks, range 23-32 weeks) cared for in the neonatal intensive care unit of the King Edward and Princess Margaret Hospital in Perth, Australia, were treated with B breve at a dose of 1.66 billion organisms per day...
October 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28938233/no-apparent-association-between-bipolar-disorder-and-cancer-in-a-large-epidemiological-study-of-outpatients-in-a-managed-care-population
#11
Natan R Kahan, Barbara Silverman, Irena Liphshitz, Dan-Andrei Waitman, Itzhak Ben-Zion, Alexander M Ponizovsky, Abraham Weizman, Alexander Grinshpoon
An association between bipolar disorder (BD) and cancer risk has been reported. The purpose of this study was to investigate this association through linkage analysis of a national HMO database and a national cancer registry. All members of the Leumit Health Services (LHS) HMO of Israel from 2000 to 2012 were included. Members with a recorded diagnosis of BD and a record of at least one written or dispensed prescription for pharmacotherapy for treatment of BD were classified as patients with BD. We linked the LHS population with the Israel National Cancer Registry database to capture all cases of cancer reported...
September 21, 2017: International Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28913650/does-levonorgestrel-releasing-intrauterine-system-increase-breast-cancer-risk-in-peri-menopausal-women-an-hmo-perspective
#12
Nava Siegelmann-Danieli, Itzhak Katzir, Janet Vesterman Landes, Yaakov Segal, Rachel Bachar, Hadas Rotem Rabinovich, Martin Bialik, Joseph Azuri, Avi Porath, Yossef Lomnicky
PURPOSE: To evaluate the association between levonorgestrel-releasing intrauterine system (LNG-IUS) use and breast cancer (BC) risk. METHODS: A cohort of all Maccabi Healthcare Services (MHS) female members aged 40-50 years between 1/2003 and 12/2013 was used to identify LNG-IUS users as "cases," and 2 age-matched non-users as "controls." Exclusion criteria included: prior BC diagnosis, prior (5 years pre-study) and subsequent treatment with other female hormones or prophylactic tamoxifen...
September 14, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28881314/analytical-characterization-of-human-milk-oligosaccharides-potential-applications-in-pharmaceutical-analysis
#13
REVIEW
Márkó Grabarics, Orsolya Csernák, Réka Balogh, Szabolcs Béni
Human breast milk is the gold standard for infant feeding and the best possible nourishment a new-born could have. Breastfeeding is the natural way to provide optimal nutritional, immunological and emotional nurturing for the healthy growth and development of infants. Human milk is a complex and dynamic biofluid comprised of many hundreds to thousands of distinct bioactive structures, among which one of the most abundant substances are the non-conjugated complex carbohydrates referred to as human milk oligosaccharides (HMOs)...
August 31, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28875497/cancer-screening-of-older-adults-in-israel-according-to-life-expectancy-cross-sectional-study
#14
Ronen Bareket, Mara A Schonberg, Doron Comaneshter, Yochai Schonmann, Michal Shani, Arnon Cohen, Shlomo Vinker
OBJECTIVES: To examine over-screening of older Israelis for colon and breast cancer. DESIGN: Cross sectional. SETTING: Clalit Health Services (CHS), Israel's largest health maintenance organization (HMO), provides care for more than half of the country's population and operates a national age-based programs for cancer screening. PARTICIPANTS: All community-dwelling members aged 65 to 79 in 2014 (N = 370,876). MEASUREMENTS: We used CHS data warehouse to evaluate cancer screening during 2014...
September 5, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28838950/medicaid-managed-care-structures-and-care-coordination
#15
Douglas H Gilchrist-Scott, James A Feinstein, Rishi Agrawal
BACKGROUND: Child enrollment in Medicaid managed care (MMC) has expanded dramatically, primarily through state mandates. Care coordination is a key metric in MMC evaluation because it drives much of the proposed cost savings and may be associated with improved health outcomes and utilization. We evaluated the relationships between enrollment in 2 MMC structures, primary care case management (PCCM) and health maintenance organization (HMO) and access to and receipt of care coordination by children...
September 2017: Pediatrics
https://www.readbyqxmd.com/read/28835872/disparities-in-total-hip-arthroplasty-versus-hemiarthroplasty-in-the-management-of-geriatric-femoral-neck-fractures
#16
Sean Dangelmajer, Arthur Yang, Michael Githens, Alex H S Harris, Julius A Bishop
INTRODUCTION: Recent clinical evidence suggests that total hip arthroplasty (THA) provides improved clinical outcomes as compared to hemiarthroplasty (HA) for displaced femoral neck fractures in elderly individuals. However, THA is still utilized relatively infrequently. Few studies have evaluated the factors affecting utilization and the role socioeconomics plays in THA versus HA. METHODS: In the United States, the National Inpatient Sample (NIS) database was used to identify patients treated surgically for femoral neck fracture, between 2009 and 2010...
September 2017: Geriatric Orthopaedic Surgery & Rehabilitation
https://www.readbyqxmd.com/read/28834837/open-versus-closed-reduction-of-maxillary-fractures-complications-and-resource-utilization
#17
Yasmina Zoghbi, David J Gerth, Jun Tashiro, Albert Lee, Seth R Thaller
INTRODUCTION: Maxillary fractures are frequently managed depending on the surgeon's preferences, nature of the injury, presence of associated injuries, and comorbidities. Current literature advocates open reduction with plating versus closed techniques. However, data defining associated costs and complications comparing the 2 approaches remains lacking. METHODS: National Inpatient Sample (2006-2011) was examined for patients undergoing closed or open (76.73-76.74) reduction of maxillary fractures...
October 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28801473/type-2-diabetes-in-the-real-world-the-elusive-nature-of-glycemic-control
#18
Steven V Edelman, William H Polonsky
Despite U.S. Food and Drug Administration (FDA) approval of over 40 new treatment options for type 2 diabetes since 2005, the latest data from the National Health and Nutrition Examination Survey show that the proportion of patients achieving glycated hemoglobin (HbA1c) <7.0% (<53 mmol/mol) remains around 50%, with a negligible decline between the periods 2003-2006 and 2011-2014. The Healthcare Effectiveness Data and Information Set reports even more alarming rates, with only about 40% and 30% of patients achieving HbA1c <7...
August 11, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28794206/lipid-based-nutrient-supplements-during-pregnancy-and-lactation-did-not-affect-human-milk-oligosaccharides-and-bioactive-proteins-in-a-randomized-trial
#19
Josh M Jorgensen, Charles Arnold, Per Ashorn, Ulla Ashorn, David Chaima, Yin Bun Cheung, Jasmine Cc Davis, Yue-Mei Fan, Elisha Goonatilleke, Emma Kortekangas, Chiza Kumwenda, Carlito B Lebrilla, Kenneth Maleta, Sarah M Totten, Lauren D Wu, Kathryn G Dewey
Background: Human milk oligosaccharides (HMOs) and bioactive proteins are beneficial to infant health. Recent evidence suggests that maternal nutrition may affect the amount of HMOs and proteins in breast milk; however, the effect of nutrient supplementation on HMOs and bioactive proteins has not yet been well studied.Objective: We aimed to determine whether lipid-based nutrient supplements (LNSs) affect milk bioactive protein and HMO concentrations at 6 mo postpartum in women in rural Malawi. These are secondary outcomes of a previously published randomized controlled trial...
August 9, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28780103/human-milk-oligosaccharide-consumption-by-probiotic-and-human-associated-bifidobacteria-and-lactobacilli
#20
Taksawan Thongaram, Jennifer L Hoeflinger, JoMay Chow, Michael J Miller
Human milk contains high concentrations of nondigestible complex oligosaccharides (human milk oligosaccharides; HMO) that reach the colon and are subsequently fermented by the infant gut microbiota. Using a high-throughput, low-volume growth determination, we evaluated the ability of 12 lactobacilli and 12 bifidobacteria strains, including several commercial probiotics, to ferment HMO and their constituent monomers. Of the 24 strains tested, only Bifidobacterium longum ssp. infantis ATCC 15697 and Bifidobacterium infantis M-63 were able to ferment 3'-sialyllactose, 6'-sialyllactose, 2'-fucosyllactose, and 3'-fucosyllactose...
August 2, 2017: Journal of Dairy Science
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