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Colostrum

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https://www.readbyqxmd.com/read/28325675/placental-and-colostral-transfer-of-antibodies-reactive-with-enteropathogenic-escherichia-coli-intimins-%C3%AE-%C3%AE-or-%C3%AE
#1
Silvia P N Altman, Milene Tino-De-Franco, Cristiane B Carbonare, Patricia Palmeira, Solange B Carbonare
OBJECTIVE: Intimins are protein adhesins of enteropathogenic Escherichia coli (EPEC) and enterohemorrhagic E. coli (EHEC) capable of inducing attachment and effacement lesions in enterocytes. Anti-intimin antibodies are important for the protection from EPEC and EHEC infections because these antibodies inhibit bacterial adhesion and impair the initial step of the pathogenesis. We studied the transfer of maternal anti-intimin antibodies from healthy Brazilian mothers to their newborns through the placenta and colostrum...
March 19, 2017: Jornal de Pediatria
https://www.readbyqxmd.com/read/28318591/reduction-of-mycobacterium-avium-ssp-paratuberculosis-in-colostrum-development-and-validation-of-2-methods-one-based-on-curdling-and-one-based-on-centrifugation
#2
M Verhegghe, G Rasschaert, L Herman, K Goossens, L Vandaele, K De Bleecker, G Vlaemynck, M Heyndrickx, J De Block
The aim of this study was to develop and validate 2 protocols (for use on-farm and at a central location) for the reduction of Mycobacterium avium ssp. paratuberculosis (MAP) in colostrum while preserving beneficial immunoglobulins (IgG). The on-farm protocol was based on curdling of the colostrum, where the IgG remain in the whey and the MAP bacteria are trapped in the curd. First, the colostrum was diluted with water (2 volumes colostrum to 1 volume water) and 2% rennet was added. After incubation (1 h at 32°C), the curd was cut and incubated again, after which whey and curd were separated using a cheesecloth...
March 16, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28318585/lactoferrin-reduces-mortality-in-preweaned-calves-with-diarrhea
#3
G Habing, K Harris, G M Schuenemann, J M Piñeiro, J Lakritz, X Alcaraz Clavijo
Calf diarrhea is the most common reason for mortality and antimicrobial therapy in preweaned calves on dairy farms in the United States. Conventional and organic livestock producers require alternative therapies for calf diarrhea to reduce the necessity of conventional antimicrobials. Alternatives administered for mild cases or early in the disease course may be useful to mitigate disease progression and reduce the likelihood of septicemia and negative sequelae. Lactoferrin is a bioactive protein naturally found in colostrum that has been shown to prevent septicemia in high-risk infants...
March 16, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28317767/empirical-and-bioinformatic-characterization-of-buffalo-bubalus-bubalis-colostrum-whey-peptides-their-angiotensin-i-converting-enzyme-inhibition
#4
N R Ashok, H S Aparna
Whey based peptides are well known for their nutritional and multifunctional properties. In this context, whey proteins from buffalo colostrum & milk were digested by in vitro simulation digestion and analyzed by nano-LC-MS/MS. Functional protein association networks, gene annotations and localization of identified proteins were carried out. An ACE inhibitory peptide sorted from the library was custom synthesized and an in vitro ACE assay was performed. The study led to the identification of 74 small peptides which were clustered into 5 gene functional groups and majority of them were secretory proteins...
August 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28317126/pharmacokinetics-of-ceftiofur-sodium-in-equine-pregnancy
#5
M L Macpherson, S Giguère, M A Pozor, E Runcan, T W Vickroy, S A Benson, M H T Troedsson, J N Hatzel, J Larson, E Vanden Berg, A A Kelleman, L C Sanchez, M M LeBlanc
Eleven pregnant pony mares (D270-326) were administered ceftiofur sodium intramuscularly at 2.2 mg/kg (n = 6) or 4.4 mg/kg (n = 5), once daily. Plasma was obtained prior to ceftiofur administration and at 0.5, 1, 2, 4, 8, 12, and 24 hr after administration. Eight pony mares were re-enrolled in the study at least 3 days from expected foaling to ensure steady-state concentrations of drug at the time of foaling. Mares were administered ceftiofur sodium (4.4 mg/kg, IM) daily until foaling. Parturition was induced using oxytocin 1 hr after ceftiofur sodium administration...
March 19, 2017: Journal of Veterinary Pharmacology and Therapeutics
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
#6
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/28295465/quantification-of-piritramide-in-human-colostrum
#7
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/28290293/comparative-proteomic-analysis-of-milk-derived-exosomes-in-human-and-bovine-colostrum-and-mature-milk-samples-by-itraq-coupled-lc-ms-ms
#8
Mei Yang, Dahe Song, Xueyan Cao, Rina Wu, Biao Liu, Wenhui Ye, Junrui Wu, Xiqing Yue
Exosomes are membranous vesicles found in biological fluids with important functions. However, milk-derived exosome proteins from humans and bovines have not been studied in detail. The advanced iTRAQ proteomic approach was used to analyze milk-derived exosomes in human and bovine colostrum and mature milk samples. A total of 920 milk exosome proteins were identified and quantified. Among these, 575 differentially expressed exosome proteins (P<0.05) were found. Multivariate analysis, gene ontology (GO) annotation and the KEGG pathway were used to interpret the identified proteins...
February 2017: Food Research International
https://www.readbyqxmd.com/read/28290057/intestinal-fatty-acid-binding-protein-and-gut-permeability-responses-to-exercise
#9
Daniel S March, Tania Marchbank, Raymond J Playford, Arwel W Jones, Rhys Thatcher, Glen Davison
PURPOSE: Intestinal cell damage due to physiological stressors (e.g. heat, oxidative, hypoperfusion/ischaemic) may contribute to increased intestinal permeability. The aim of this study was to assess changes in plasma intestinal fatty acid-binding protein (I-FABP) in response to exercise (with bovine colostrum supplementation, Col, positive control) and compare this to intestinal barrier integrity/permeability (5 h urinary lactulose/rhamnose ratio, L/R). METHODS: In a double-blind, placebo-controlled, crossover design, 18 males completed two experimental arms (14 days of 20 g/day supplementation with Col or placebo, Plac)...
March 13, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28288770/experimental-toxoplasma-gondii-infections-in-pigs-humoral-immune-response-estimation-of-specific-igg-avidity-and-the-challenges-of-reproducing-vertical-transmission-in-sows
#10
Walter Basso, Felix Grimm, Maja Ruetten, Vitomir Djokic, Radu Blaga, Xaver Sidler, Peter Deplazes
Ten pregnant sows were experimentally inoculated per os with T. gondii in order to investigate vertical and galactogenic transmission of the parasite and the evolution and maturation of the specific IgG humoral response in the sows and piglets. Five seronegative sows received 10(4)T. gondii (CZ isolate clone H3) sporulated oocysts during late-pregnancy (Exp. 1), three sows received 10(4) oocysts during mid-pregnancy (Exp. 2) and three sows from Exp. 1 (and two seronegative sows) were re-inoculated with 10(5) oocysts during a further pregnancy (late-pregnancy) (Exp...
March 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28285432/a-low-dose-6-week-bovine-colostrum-supplementation-maintains-performance-and-attenuates-inflammatory-indices-following-a-loughborough-intermittent-shuttle-test-in-soccer-players
#11
Yiannis Kotsis, Anastasia Mikellidi, Cleopatra Aresti, Eleni Persia, Aristomenis Sotiropoulos, Demosthenes B Panagiotakos, Smaragdi Antonopoulou, Tzortzis Nomikos
PURPOSE: The aim of the study was to investigate the effect of a 6-week, low-dose bovine colostrum (BC) supplementation on exercise-induced muscle damage (EIMD) and performance decline in soccer players following the Loughborough Intermittent Shuttle Test (LIST) during a competitive season period. METHODS: In a double-blind, randomized, placebo-controlled design, two groups of soccer players were allocated to a 3.2 g/day of whey protein (WP, N = 8) or BC (N = 10) and performed a pre- and a post-supplementation LIST...
March 11, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28284624/attenuation-of-an-original-us-porcine-epidemic-diarrhea-virus-strain-pc22a-via-serial-cell-culture-passage
#12
Chun-Ming Lin, Yixuan Hou, Douglas G Marthaler, Xiang Gao, Xinsheng Liu, Lanlan Zheng, Linda J Saif, Qiuhong Wang
Although porcine epidemic diarrhea (PED) has caused huge economic losses in the pork industry worldwide, an effective live, attenuated vaccine is lacking. In this study, an original US, highly virulent PED virus (PEDV) strain PC22A was serially passaged in Vero CCL81 and Vero BI cells. The virus growth kinetics in cell culture, virulence in neonatal pigs and the whole genomic sequences of selected passages were examined. Increased virus titers and sizes of syncytia were observed at the 65th passage level (P65) and P120, respectively...
March 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28276902/comparative-proteomic-exploration-of-whey-proteins-in-human-and-bovine-colostrum-and-mature-milk-using-itraq-coupled-lc-ms-ms
#13
Mei Yang, Xueyan Cao, Rina Wu, Biao Liu, Wenhui Ye, Xiqing Yue, Junrui Wu
Whey, an essential source of dietary nutrients, is widely used in dairy foods for infants. A total of 584 whey proteins in human and bovine colostrum and mature milk were identified and quantified by the isobaric tag for relative and absolute quantification (iTRAQ) proteomic method. The 424 differentially expressed whey proteins were identified and analyzed according to gene ontology (GO) annotation, Kyoto encyclopedia of genes and genomes (KEGG) pathway, and multivariate statistical analysis. Biological processes principally involved biological regulation and response to stimulus...
February 20, 2017: International Journal of Food Sciences and Nutrition
https://www.readbyqxmd.com/read/28271162/immune-response-of-gilts-to-single-and-double-infection-with-porcine-epidemic-diarrhea-virus
#14
Anchalee Srijangwad, Christopher James Stott, Gun Temeeyasen, Raweewan Senasuthum, Wanchai Chongcharoen, Angkana Tantituvanont, Dachrit Nilubol
Immune response of gilts following single and double infection with porcine epidemic diarrhea virus (PEDV) at gilt acclimatization and prepartum were investigated. One hundred PEDV-naïve gilts were divided into two groups: negative (Neg) and feedback (FB) groups. Antibody responses in serum, colostrum, and milk samples were measured by IgG/IgA ELISA and virus neutralization assay (VN). Fecal shedding was investigated using RT-PCR. In summary, a single infection at gilt acclimatization resulted in slightly increased serum antibody titers as determined by VN assay and IgG ELISA, but not by IgA ELISA...
March 7, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28268184/feeding-premature-neonates-kinship-and-species-in-translational-neonatology
#15
Mie S Dam, Sandra M Juhl, Per T Sangild, Mette N Svendsen
Kinship, understood as biogenetic proximity, between a chosen animal model and a human patient counterpart, is considered essential to the process of 'translating' research from the experimental animal laboratory to the human clinic. In the Danish research centre, NEOMUNE, premature piglets are fed a novel milk diet (bovine colostrum) to model the effects of this new diet in premature infants. Our ethnographic fieldwork in an experimental pig laboratory and a neonatal intensive care unit (NICU) in 2013-2014 shows that regardless of biogenetics, daily practices of feeding, housing, and clinical care hold the potential for stimulating and eroding kinship relations between human and nonhuman actors...
February 28, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28248241/a-quantitative-proteomics-approach-to-clinical-research-with-non-traditional-samples
#16
Rígel Licier, Eric Miranda, Horacio Serrano
The proper handling of samples to be analyzed by mass spectrometry (MS) can guarantee excellent results and a greater depth of analysis when working in quantitative proteomics. This is critical when trying to assess non-traditional sources such as ear wax, saliva, vitreous humor, aqueous humor, tears, nipple aspirate fluid, breast milk/colostrum, cervical-vaginal fluid, nasal secretions, bronco-alveolar lavage fluid, and stools. We intend to provide the investigator with relevant aspects of quantitative proteomics and to recognize the most recent clinical research work conducted with atypical samples and analyzed by quantitative proteomics...
October 17, 2016: Proteomes
https://www.readbyqxmd.com/read/28242000/cytokine-levels-in-colostrum-and-in-foals-serum-pre-and-post-suckling
#17
J Mariella, C Castagnetti, A Prosperi, A Scagliarini, A Peli
The purpose of this study is to investigate the presence of IL-4, IL-8, IL-13 and IFN-γ in equine colostrum and in foals' serum. Samples were obtained from 14 mares and their healthy foals. Soon after parturition, 10ml of colostrum was collected, filtered, centrifuged and frozen until assayed. Blood samples were obtained from each foal at birth (TO) and again after 24h (T24), after which they were frozen until assayed. Serum IgG was measured at 24h of age with an immunoturbidimetric quantitative method. Cytokine concentration was determined using commercially available ELISA tests...
March 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28239998/effects-of-colostrum-serum-on-the-serotonergic-system-in-the-dorsal-raphe-nuclei-of-exercised-rats
#18
Jin-Hee Seo, Tae-Woon Kim, Chang-Ju Kim
Purpose: The central fatigue hypothesis suggests that exhaustion, or the maximum level of exercise, induces excessive stress and increases serotonin concentrations in the brain, which in turn decreases central nervous system (CNS) function and induces fatigue. Our aim was to determine the effects of colostrum serum on the serotonergic system in the dorsal raphe nuclei during exhaustive exercise. Methods: Animals were randomly divided into five groups: control, exercise, exercise and treatment with 50, 100, and 200 mg/kg of colostrum serum...
February 24, 2017: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/28237597/comparison-of-immune-responses-in-calves-fed-heat-treated-or-unheated-colostrum
#19
S L Gelsinger, A J Heinrichs
Understanding the mechanisms that underlie neonatal immune function is important for appropriately treating and preventing disease. Cytokines provided in colostrum may affect immune development and function, but data describing cytokine absorption in calves and the effects of colostrum heat treatment on absorption are limited. The objectives of this experiment were to characterize immune responses in calves that received heat-treated (HT) or unheated (UH) colostrum (in terms of growth, rectal temperature, and blood cytokine and IgG concentrations) and to determine calves' ability to absorb IFNγ and IL1β from HT and UH colostrum...
February 22, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28237588/evaluating-a-commercial-pcr-assay-against-bacterial-culture-for-diagnosing-streptococcus-uberis-and-staphylococcus-aureus-throughout-lactation
#20
N M Steele, J H Williamson, R Thresher, R A Laven, J E Hillerton
The performance of a commercial, real-time PCR assay was compared with traditional bacterial culture for the identification of Streptococcus uberis and Staphylococcus aureus in bovine milk collected at different stages of lactation. Initial validation tests using fresh and frozen quarter milk samples identified factors that affected the success of the PCR. Therefore, the standard protocol was adjusted for samples collected at the first milking postpartum (colostrum) and from clinical mastitis cases. The adjustment involved PCR testing both undiluted and diluted (1 in 10 with sterile water) DNA extracts...
February 22, 2017: Journal of Dairy Science
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