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https://www.readbyqxmd.com/read/28339484/a-high-throughput-qpcr-system-for-simultaneous-quantitative-detection-of-dairy-lactococcus-lactis-and-leuconostoc-bacteriophages
#1
Musemma K Muhammed, Lukasz Krych, Dennis S Nielsen, Finn K Vogensen
Simultaneous quantitative detection of Lactococcus (Lc.) lactis and Leuconostoc species bacteriophages (phages) has not been reported in dairies using undefined mixed-strain DL-starters, probably due to the lack of applicable methods. We optimized a high-throughput qPCR system that allows simultaneous quantitative detection of Lc. lactis 936 (now SK1virus), P335, c2 (now C2virus) and Leuconostoc phage groups. Component assays are designed to have high efficiencies and nearly the same dynamic detection ranges, i...
2017: PloS One
https://www.readbyqxmd.com/read/28335478/lactational-stage-of-pasteurized-human-donor-milk-contributes-to-nutrient-limitations-for-infants
#2
Christina J Valentine, Georgia Morrow, Amanda Reisinger, Kelly A Dingess, Ardythe L Morrow, Lynette K Rogers
BACKGROUND: Mother's own milk is the first choice for feeding preterm infants, but when not available, pasteurized human donor milk (PDM) is often used. Infants fed PDM have difficulties maintaining appropriate growth velocities. To assess the most basic elements of nutrition, we tested the hypotheses that fatty acid and amino acid composition of PDM is highly variable and standard pooling practices attenuate variability; however, total nutrients may be limiting without supplementation due to late lactational stage of the milk...
March 18, 2017: Nutrients
https://www.readbyqxmd.com/read/28330826/the-influence-of-methamphetamine-on-maternal-behavior-and-development-of-the-pups-during-the-neonatal-period
#3
Mária Ševčíková, Ivana Hrebíčková, Eva Macúchová, Romana Šlamberová
Since it enters breast milk, methamphetamine (MA) abuse during lactation can not only affect the quality of maternal behavior but also postnatal development of pups. The aim of the present study was to examine the effect of injected MA (5mg/kg) on maternal behavior of rats and the differences in postnatal development, during postnatal days (PD) 1-11, of pups when the pups were directly exposed (i.e., injected) to MA or received MA indirectly via breast milk. Maternal behavior was examined using observation test (PD 1-22) and pup retrieval test (PD 1-12)...
March 18, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28326807/perception-of-not-having-enough-milk-and-actual-milk-production-of-first-time-breastfeeding-mothers-is-there-a-difference
#4
Roseline Galipeau, Louise Dumas, Mario Lepage
OBJECTIVE: This study aimed to determine the relationship between perceived insufficient milk supply (PIMS) and actual insufficient milk supply (AIMS) and the relative contributions of physiological and psychosocial variables on both PIMS and AIMS of first-time breastfeeding mothers. PARTICIPANTS AND METHODS: Data were collected among 123 breastfeeding mothers at a Canadian, French-speaking maternal care hospital. Birth events, breastfeeding practices, infant and maternal capacities, and PIMS and AIMS were collected at 48 hours after birth, postnatal weeks 2 and 6...
March 22, 2017: Breastfeeding Medicine: the Official Journal of the Academy of Breastfeeding Medicine
https://www.readbyqxmd.com/read/28322655/mothers-with-perceived-insufficient-milk
#5
Natsuko K Wood, Elizabeth A Sanders
Perceived insufficient milk (PIM) is the primary reason for breastfeeding discontinuation globally. This study evaluated the short-term impact of mother-infant interactions through home interventions designed to overcome PIM as a result of the infant's behavior, delivered to 14 dyads of breastfeeding mothers and their full-term singleton infants. A single group, three-occasion prepost design was used. Mother-infant interactions were measured by the Nursing Child Assessment Feeding Scale (NCAFS) at 6, 13, and 27 days postpartum...
January 1, 2017: Western Journal of Nursing Research
https://www.readbyqxmd.com/read/28320548/evaluating-the-influence-of-half-life-milk-plasma-partition-coefficient-and-volume-of-distribution-on-lactational-exposure-to-chemicals-in-children
#6
Marc-André Verner, Laurence Plouffe, Kyra K Kieskamp, Inés Rodríguez-Leal, Satori A Marchitti
Women are exposed to multiple environmental chemicals, many of which are known to transfer to breast milk during lactation. However, little is known about the influence of the different chemical-specific pharmacokinetic parameters on children's lactational dose. Our objective was to develop a generic pharmacokinetic model and subsequently quantify the influence of three chemical-specific parameters (biological half-life, milk:plasma partition coefficient, and volume of distribution) on lactational exposure to chemicals and resulting plasma levels in children...
March 17, 2017: Environment International
https://www.readbyqxmd.com/read/28319268/developmental-changes-in-feeding-behaviors-of-infant-chimpanzees-at-mahale-tanzania-implications-for-nutritional-independence-long-before-cessation-of-nipple-contact
#7
Takuya Matsumoto
OBJECTIVES: Weaning of chimpanzees is considered to occur at 4-5-years-old with complete cessation of nipple contact and timing of reconception calculated by inter-birth interval minus gestation length. This is also the basis of "early weaning" in humans (i.e., approximately 2.5-years-old). However, recent studies of the survival of orphans and the first molar (M1) eruption in wild chimpanzees have predicted that infants move toward nutritional independence at 3-years-old. Therefore, this study aimed to investigate ontogeny of feeding behavior at around 3-years-old in wild infant chimpanzees...
March 20, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28316968/a-stepwise-pilot-study-of-bovine-colostrum-to-supplement-the-first-enteral-feeding-in-preterm-infants-precolos-study-protocol-and-initial-results
#8
Yanqi Li, Sandra M Juhl, Xuqiang Ye, René L Shen, Elisabeth Omolabake Iyore, Yiheng Dai, Per T Sangild, Gorm O Greisen
STUDY PROTOCOL: The optimal feeding for preterm infants during the first weeks is still debated, especially when mother's own milk is lacking or limited. Intact bovine colostrum (BC) contains high amounts of protein, growth factors, and immuno-regulatory components that may benefit protein intake and gut maturation. We designed a pilot study to investigate the feasibility and tolerability of BC as the first nutrition for preterm infants. The study was designed into three phases (A, B, and C) and recruited infants with birth weights of 1,000-1,800 g (China) or gestational ages (GAs) of 27 + 0 to 32 + 6 weeks (Denmark)...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28315860/determinants-and-duration-of-impact-of-early-gut-bacterial-colonization
#9
Christine Ann Edwards
BACKGROUND: An increasing number of studies show low diversity of the gut microbiome in those with chronic diseases such as obesity, inflammatory bowel disease, and allergy. Manipulation of the microbiota may promote health. However, the adult microbiota is stable and may be difficult to change. Understanding the fixed and modifiable factors, which determine colonization in early life, may provide strategies for acquisition of a health-promoting microbiome. SUMMARY: Not enough is known about the long-term effects of established determinants of gut colonization, including delivery mode, perinatal antibiotics, and infant diet...
March 18, 2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28314607/mutagenic-activities-of-biochars-from-pyrolysis
#10
Anna V Piterina, J Kevin Chipman, J Tony Pembroke, Michael H B Hayes
Biochar production, from pyrolysis of lignocellulosic feedstocks, agricultural residues, and animal and poultry manures are emerging globally as novel industrial and commercial products. It is important to develop and to validate a series of suitable protocols for the ecological monitoring of the qualities and properties of biochars. The highly sensitive Salmonella mutagenicity assays (the Ames test) are used widely by the toxicology community and, via the rat liver extract (S9), can reflect the potential for mammalian metabolic activation...
March 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28301837/breast-milk-polyamines-and-microbiota-interactions-impact-of-mode-of-delivery-and-geographical-location
#11
Carlos Gómez-Gallego, Himanshu Kumar, Izaskun García-Mantrana, Elloise du Toit, Jukka-Pekka Suomela, Kaisa M Linderborg, Yumei Zhang, Erika Isolauri, Baoru Yang, Seppo Salminen, M Carmen Collado
BACKGROUND/AIMS: The aim of the present study was to identify and quantify the polyamine levels in human milk obtained from different countries and through different modes of delivery, and to investigate their association with breast milk microbes. METHODS: Mature breast milk samples were obtained from 78 healthy mothers after 1 month of lactation from 4 different geographical locations: Finland, Spain (Europe); South Africa (Africa); and China (Asia). Polyamines were determined using HPLC after dansyl derivatization and milk microbiota was obtained by 16S rRNA gene sequencing...
March 17, 2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28301833/persistent-environmental-toxicants-in-breast-milk-and-rapid-infant-growth
#12
Rachel Criswell, Virissa Lenters, Siddhartha Mandal, Hein Stigum, Nina Iszatt, Merete Eggesbø
BACKGROUND/AIMS: Many environmental toxicants are passed to infants in utero and through breast milk. Exposure to toxicants during the perinatal period can alter growth patterns, impairing growth or increasing obesity risk. Previous studies have focused on only a few toxicants at a time, which may confound results. We investigated levels of 26 toxicants in breast milk and their associations with rapid infant growth, a risk factor for later obesity. METHODS: We used data from the Norwegian HUMIS study, a multi-center cohort of 2,606 mothers and newborns enrolled between 2002 and 2008...
March 17, 2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28298392/total-folate-and-unmetabolized-folic-acid-in-the-breast-milk-of-a-cross-section-of-canadian-women
#13
Rachael Page, André Robichaud, Tye E Arbuckle, William D Fraser, Amanda J MacFarlane
Background: Folate requirements increase during pregnancy and lactation. It is recommended that women who could become pregnant, are pregnant, or are lactating consume a folic acid (FA)-containing supplement.Objectives: We sought to determine breast-milk total folate and unmetabolized folic acid (UMFA) contents and their relation with FA-supplement use and doses in a cohort of Canadian mothers who were enrolled in the MIREC (Maternal-Infant Research on Environmental Chemicals) study.Design: Breast-milk tetrahydrofolate (THF), 5-methyl-THF, 5-formyl-THF, 5,10-methenyl-THF, and UMFA were measured with the use of liquid chromatography-tandem mass spectrometry (n = 561)...
March 15, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28295576/maternity-leave-length-and-workplace-policies-impact-on-the-sustainment-of-breastfeeding-global-perspectives
#14
Lisa M Steurer
BACKGROUND: Breastfeeding is a global initiative of the World Health Organization and the U.S. domestic health agenda, Healthy People 2020; both recommend exclusive breastfeeding, defined as providing breast milk only via breast or bottle, through the first 6 months of an infant's life. Previous literature has shown the correlation between socioeconomic status and breastfeeding, with higher maternal education and income as predictors of sustained breastfeeding. This same population of women is more likely to be employed outside the home...
March 10, 2017: Public Health Nursing
https://www.readbyqxmd.com/read/28295465/quantification-of-piritramide-in-human-colostrum
#15
A Van Eeckhaut, P Vanfleteren, J Van Schoors, Y Van Wanseele, J Poelaert, Y Michotte
WHAT IS KNOWN AND OBJECTIVE: In our university hospital (UZBrussel), one of the options to control post-operative pain after a Caesarean section under general anaesthesia is to administer piritramide by patient-controlled intravenous analgesia (PCIA). As no information is available about the possible transfer of this synthetic narcotic analgesic into breastmilk, women are frequently advised not to breastfeed their newborn. A sensitive liquid chromatographic (LC) method coupled with UV detection will therefore be developed and validated for the quantification of piritramide in colostrum samples to evaluate the presence of the analgesic in the first milk...
March 13, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28288144/thyroid-stimulating-hormone-levels-in-newborns-and-early-life-exposure-to-endocrine-disrupting-chemicals-analysis-of-three-european-mother-child-cohorts
#16
Marijke de Cock, Michiel R de Boer, Eva Govarts, Nina Iszatt, Lubica Palkovicova, Marja H Lamoree, Greet Schoeters, Merete Eggesbø, Tomas Trnovec, Juliette Legler, Margot van de Bor
BACKGROUND: Various studies report interactions between thyroid hormones and early life chemical exposure. Our objective was to analyse associations between markers of endocrine disrupting chemical exposure and thyroid function in newborns, determined in heel prick blood spots. METHODS: Three European mother-child cohorts (FLEHSI - Belgium, HUMIS - Norway, and the PCB cohort - Slovakia. Total n=1784) were pooled for the purpose of this study. Data on Thyroid Stimulating Hormone (TSH) was obtained from national neonatal screening registries, and cord plasma and/or breast milk was collected to determine exposure to various chemicals...
March 13, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28287490/correlations-between-maternal-breast-milk-and-infant-vitamin-b12-concentrations-among-mother-infant-dyads-in-vancouver-canada-and-prey-veng-cambodia-an-exploratory-analysis
#17
Philip Chebaya, Crystal D Karakochuk, Kaitlin M March, Nancy N Chen, Rosemary A Stamm, Hou Kroeun, Prak Sophonneary, Mam Borath, Setareh Shahab-Ferdows, Daniela Hampel, Susan I Barr, Yvonne Lamers, Lisa A Houghton, Lindsay H Allen, Tim J Green, Kyly C Whitfield
Vitamin B12 plays an essential role in fetal and infant development. In regions where animal source food consumption is low and perinatal supplementation is uncommon, infants are at risk of vitamin B12 deficiency. In this secondary analysis, we measured total vitamin B12 concentrations in maternal and infant serum/plasma and breast milk among two samples of mother-infant dyads in Canada (assessed at 8 weeks post-partum) and in Cambodia (assessed between 3-27 weeks post-partum). Canadian mothers (n = 124) consumed a daily vitamin B12-containing multiple micronutrient supplement throughout pregnancy and lactation; Cambodian mothers (n = 69) were unsupplemented...
March 12, 2017: Nutrients
https://www.readbyqxmd.com/read/28285609/breast-milk-fatty-acid-composition-and-fatty-acid-intake-of-lactating-mothers-in-south-korea
#18
Hyesook Kim, Sujeong Kang, Byung-Moon Jung, Hyunju Yi, Ji A Jung, Namsoo Chang
The aim of this study was to determine the fatty acid (FA) composition of breast milk, and its association with mothers' FA intake. Milk samples were obtained from 238 healthy lactating women who volunteered to participate in the Human Milk Micronutrients Analysis Research. Dietary intake during lactation was assessed using a 3-d food record, and fat content and FA composition of the breast milk samples were analysed by IR spectrometry using MilkoScan FT2 and GC flame ionisation detector, respectively. The fat content was 3·31 (sd 1·41) g/100 ml breast milk...
March 13, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28283142/determinants-of-weaning-practices-among-mothers-of-infants-aged-below-12-months-in-masvingo-zimbabwe
#19
Laston Gonah, Julia Mutambara
BACKGROUND: Poor weaning practices have been reported to contribute to high infant mortality and morbidity rates especially in developing countries. OBJECTIVES: This study sought to determine factors related to weaning that predispose, reinforce and enable mothers of infants younger than age 12 months to comply or not to comply with the World Health Organization (WHO) 2009 guidelines on appropriate infant feeding. METHODS: The present study was a descriptive cross-sectional study...
September 2016: Annals of Global Health
https://www.readbyqxmd.com/read/28280392/maternal-experiences-with-and-sources-of-information-on-galactagogues-to-support-lactation-a-cross-sectional-study
#20
Alessandra N Bazzano, Lauren Cenac, Amelia J Brandt, Josephine Barnett, Shelley Thibeau, Katherine P Theall
An increase in the marketing and use of herbal galactagogues among breastfeeding mothers in the US has raised the issue of how best to provide support and information on the use of these products, particularly in light of limited availability of certified lactation counselors and continued suboptimal rates of breastfeeding globally. Currently, no cross-sectional data are available on the experiences and attitudes of mothers regarding the use of herbal and pharmaceutical galactagogues for lactation in the US...
2017: International Journal of Women's Health
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