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https://www.readbyqxmd.com/read/28319900/bipolar-electrochemiluminescence-on-thread-a-new-class-of-electroanalytical-sensors
#1
Rui Liu, Cuiling Liu, Huijie Li, Min Liu, Dan Wang, Chunsun Zhang
This paper introduces a new and simple concept for fabricating low-cost, easy-to-use capillary microchannel (CMC) assisted thread-based microfluidic analytical devices (CMCA-μTADs) for bipolar electrochemiluminescence (BP-ECL) application. The thread with patterns of carbon screen-printed electrodes and bare thread zones (BTZs) is embedded into a CMC. Such CMCA-μTADs can produce a strong and stable BP-ECL signal, and have an extremely low cost ($0.01 per device). Interestingly, the CMCA-μTADs are ultraflexible, and can be bent with a 135° bending angle at the BTZ or with a 150° bending angle at the middle of bipolar electrode (BPE), with no loss of analytical performance...
March 7, 2017: Biosensors & Bioelectronics
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
#2
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/28318579/antimicrobial-susceptibility-and-characterization-of-extended-spectrum-%C3%AE-lactamases-in-escherichia-coli-isolated-from-bovine-mastitic-milk-in-south-korea-from-2012-to-2015
#3
Dong-Seob Tark, Dong Chan Moon, Hee Young Kang, Su-Ran Kim, Hyang-Mi Nam, Hee-Soo Lee, Suk-Chan Jung, Suk-Kyung Lim
In this study, we aimed to assess trends in antimicrobial resistance and to investigate the characteristics of extended-spectrum β-lactamase (ESBL)-producing isolates from bovine mastitic milk from 2012 to 2015. A total of 374 Escherichia coli isolates were analyzed (154 in 2012, 113 in 2013, 76 in 2014, and 31 in 2015). No consistent trends in antimicrobial resistance of E. coli isolates occurred during the 4-yr period. The most frequently observed resistance was tetracycline (23.3%), followed by streptomycin (17...
March 16, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28317752/facile-preparation-of-magnetic-carbon-nanotubes-immobilized-lipase-for-highly-efficient-synthesis-of-1-3-dioleoyl-2-palmitoylglycerol-rich-human-milk-fat-substitutes
#4
Mingming Zheng, Shi Wang, Xia Xiang, Jie Shi, Juan Huang, Qianchun Deng, Fenghong Huang, Junyong Xiao
In this study, Candida lipolytica lipase (CLL) was immobilized on magnetic multi-walled carbon nanotubes (mMWCNTs) via hydrophobic and cation-exchange interaction. The resultant immobilized CLL showed much better thermal stability, biocatalyst activity and easier recycling than the free form. A method for efficient enzymatic acidolysis of tripalmitin (PPP) with oleic acid (OA), to produce OPO-rich TAGs, was developed, using the immobilized CLL as the biocatalyst. Under optimized conditions (2% water, 20mg/ml enzyme, 1:6 PPP/OA, 50°C, 2h), the content of OPO in the final product reached 46...
August 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28317453/ebola-virus-epidemiology-diagnosis-and-control-threat-to-humans-lessons-learnt-and-preparedness-plans-an-update-on-its-40-year-s-journey
#5
Raj Kumar Singh, Kuldeep Dhama, Yashpal Singh Malik, Muthannan Andavar Ramakrishnan, Kumaragurubaran Karthik, Rekha Khandia, Ruchi Tiwari, Ashok Munjal, Mani Saminathan, Swati Sachan, Perumal Arumugam Desingu, Jobin Jose Kattoor, Hafiz M N Iqbal, Sunil Kumar Joshi
Ebola virus (EBOV) is an extremely contagious pathogen and causes lethal hemorrhagic fever disease in man and animals with high fatality rates. The recently occurred Ebola virus disease (EVD) outbreaks in the West African countries have categorized it as an international health concern. For the virus maintenance and transmission, the non-human primates and reservoir hosts like fruit bats have played a vital role. Furthermore, the virus may also get transferred through contaminated biological fluids like breast milk, tears, urine, semen, blood, etc...
March 20, 2017: Veterinary Quarterly
https://www.readbyqxmd.com/read/28315281/are-there-changes-in-the-fatty-acid-profile-of-breast-milk-with-supplementation-of-omega-3-sources-a-systematic-review
#6
Yasmin Notarbartolo di Villarosa do Amaral, Daniele Marano, Leila Maria Lopes da Silva, Aline Carnevale Lia Dias Guimarães, Maria Elisabeth Lopes Moreira
Purpose To evaluate the effect of supplementation with omega-3 sources on the fatty acid composition of human milk. Methods The review consisted of the search for articles published in PubMed, Biblioteca Virtual de Saúde (Virtual Health Library[VHL]) and Web of Science databases using the following keywords: fatty acids, omega-3, human milk and supplementation; for this purpose, we have used the program of research to integrate the services for the maintenance of autonomy (PRISMA) checklist. The following selection criteria were used: articles in English, Portuguese, Spanish or Italian, published between 2000 and 2015, and about studies performed in humans...
March 17, 2017: Revista Brasileira de Ginecologia e Obstetrícia
https://www.readbyqxmd.com/read/28314639/acute-dark-chocolate-ingestion-is-beneficial-for-hemodynamics-via-enhancement-of-erythrocyte-deformability-in-healthy-humans
#7
Jana Radosinska, Martina Horvathova, Karel Frimmel, Jana Muchova, Maria Vidosovicova, Rastislav Vazan, Iveta Bernatova
Erythrocyte deformability is an important property of erythrocytes that considerably affects blood flow and hemodynamics. The high content of polyphenols present in dark chocolate has been reported to play a protective role in functionality of erythrocytes. We hypothesized that chocolate might influence erythrocytes not only after repeated chronic intake, but also immediately after its ingestion. Thus, we determined the acute effect of dark chocolate and milk (with lower content of biologically active substances) chocolate intake on erythrocyte deformability...
March 7, 2017: Nutrition Research
https://www.readbyqxmd.com/read/28306241/development-of-chemical-isotope-labeling-lc-ms-for-milk-metabolomics-comprehensive-and-quantitative-profiling-of-the-amine-phenol-submetabolome
#8
Dorothea Mung, Liang Li
Milk is a complex sample containing a variety of proteins, lipids and metabolites. Studying the milk metabolome represents an important application of metabolomics in the general area of nutritional research. However, comprehensive and quantitative analysis of milk metabolites is a challenging task due to the wide range of variations in chemical/physical properties and concentrations of these metabolites. We report an analytical workflow for in-depth profiling of the milk metabolome based on chemical isotope labeling (CIL) and liquid chromatography mass spectrometry (LC-MS) with a focus of using dansylation labeling to target the amine/phenol submetabolome...
March 17, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28301837/breast-milk-polyamines-and-microbiota-interactions-impact-of-mode-of-delivery-and-geographical-location
#9
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/28301498/knowledge-attitudes-and-practices-kap-relating-to-brucellosis-in-smallholder-dairy-farmers-in-two-provinces-in-pakistan
#10
Shumaila Arif, Peter C Thomson, Marta Hernandez-Jover, David M McGill, Hassan Mahmood Warriach, Jane Heller
The present study aimed to assess the extent of knowledge and understanding of brucellosis in smallholder dairy farmers and identify practices at the farm and household level that might pose a risk for humans contracting brucellosis. Between February and June 2015 a cross-sectional study was conducted among smallholder farms (n = 420) in five districts of Punjab and two districts of Sindh province. Farmers were interviewed using a questionnaire to obtain information on farmers' knowledge about brucellosis and the potential risks for contracting the disease that are present for dairy farmers and their families...
2017: PloS One
https://www.readbyqxmd.com/read/28300659/milk-derived-exosomes-for-oral-delivery-of-paclitaxel
#11
Ashish K Agrawal, Farrukh Aqil, Jeyaprakash Jeyabalan, Wendy A Spencer, Joshua Beck, Beth W Gachuki, Sara S Alhakeem, Karine Oben, Radha Munagala, Subbarao Bondada, Ramesh C Gupta
In this report milk-derived exosomes have been investigated for oral delivery of the chemotherapeutic drug paclitaxel (PAC) as an alternative to conventional i.v. therapy for improved efficacy and reduced toxicity. PAC-loaded exosomes (ExoPAC) were found to have a particle size of ~108nm, a narrow particle size distribution (PDI ~0.190), zeta potential (~ -7mV) and a practical loading efficiency of ~8%. Exosomes and ExoPAC exhibited excellent stability in the presence of simulated-gastrointestinal fluids, and during the storage at -80°C...
March 11, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28300420/a-new-lc-ms-ms-bioanalytical-method-for-atenolol-in-human-plasma-and-milk
#12
Ei Mon Phyo Lwin, Cobus Gerber, Yunmei Song, Catherine Leggett, Usha Ritchie, Sean Turner, Sanjay Garg
AIM: A new sensitive LC-MS/MS method for the quantification of atenolol in human plasma and milk has been developed for clinical lactation studies. METHODS & RESULTS: Atenolol and the internal standard, phenazone, were extracted from biological matrices by protein precipitation. A Phenomenex(®) C-18 column and gradient chromatographic conditions were used for separation of the analyte, followed by detection with MS. Stability of samples was confirmed for atenolol in human plasma and milk for up to 3 months...
March 16, 2017: Bioanalysis
https://www.readbyqxmd.com/read/28299859/analysis-of-maldi-q-tof-cid-spectra-of-simple-precursor-ions-and-isobaric-oligosaccharide-ion-mixtures-based-on-product-ion-intensities-and-pattern-recognition
#13
Marko Jovanović, Richard Tyldesley-Worster
RATIONALE: Qualitative data analysis of glycomic MS/MS data based on m/z values of product ions alone is widely used, and often sufficient for analysis of single analytes. However, most complex glycomic mixtures contain multiple isobaric oligosaccharides, in which case this approach is often limited. Here we show how ion intensity information can be used in order to enhance MS/MS data analysis, and extract both qualitative and semiquantitative information from complex glycomic MS/MS datasets...
March 15, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28299287/low-prevalence-of-salmonella-enterica-in-cull-dairy-cattle-at-slaughter-in-northern-italy
#14
Silvia Bonardi, Ilaria Bruini, Rossella Magnani, Nicolò Cannistrà, Franco Brindani
In order to evaluate Salmonella carrier status of cull dairy cattle at slaughter, 125 animals were randomly selected during the period February-May 2016. Dairy cows were reared in 89 farms located in two regions of Northern Italy (Lombardy and Emilia-Romagna regions), where bovine milk is primarily used for Parmigiano-Reggiano cheese and Grana Padano cheese production. Samples were collected by swabbing a 400-cm(2) area of the brisket hide and by rectoanal mucosal swabs. They were tested following the reference ISO 6579 method and the isolates were serotyped following the Kauffmann-White-Le Minor scheme and genotyped by XbaI PFGE...
January 24, 2017: Italian Journal of Food Safety
https://www.readbyqxmd.com/read/28299153/knowledge-attitudes-and-practices-towards-spotted-fever-group-rickettsioses-and-q-fever-in-laikipia-and-maasai-mara-kenya
#15
David Ndeereh, Gerald Muchemi, Andrew Thaiyah
Many factors contribute to misdiagnosis and underreporting of infectious zoonotic diseases in most sub-Saharan Africa including limited diagnostic capacity and poor knowledge. We assessed the knowledge, practices and attitudes towards spotted fever group rickettsioses (SFGR) and Q fever amongst local residents in Laikipia and Maasai Mara in Kenya. A semi-structured questionnaire was administered to a total of 101 respondents including 51 pastoralists, 17 human health providers, 28 wildlife sector personnel and 5 veterinarians...
August 17, 2016: Journal of Public Health in Africa
https://www.readbyqxmd.com/read/28298694/isolation-molecular-characterization-and-screening-of-indigenous-lactobacilli-for-their-abilities-to-produce-bioactive-conjugated-linoleic-acid-cla
#16
Dinesh Kumar Dahiya, Anil Kumar Puniya
Ingestion of conjugated linoleic acid poised many health benefits; however, amount of CLA one can get through generalized diet in is inadequate in exerting the desired benefits. Therefore, presence of CLA producing lactobacilli in dairy fermented foods has a tremendous potential to increase the CLA content. Therefore, present study was focused to isolate and characterize CLA producing lactobacilli from different dairy products and human faeces. Arguably, 283 lactobacilli were isolated from various sources and tested for CLA production...
March 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28298634/weaning-age-influences-the-severity-of-gastrointestinal-microbiome-shifts-in-dairy-calves
#17
S J Meale, S C Li, P Azevedo, H Derakhshani, T J DeVries, J C Plaizier, M A Steele, E Khafipour
Ruminants microbial consortium is responsible for ruminal fermentation, a process which converts fibrous feeds unsuitable for human consumption into desirable dairy and meat products, begins to establish soon after birth. However, it undergoes a significant transition when digestion shifts from the lower intestine to ruminal fermentation. We hypothesised that delaying the transition from a high milk diet to an exclusively solid food diet (weaning) would lessen the severity of changes in the gastrointestinal microbiome during this transition...
March 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28298536/pasteurization-procedures-for-donor-human-milk-affect-body-growth-intestinal-structure-and-resistance-against-bacterial-infections-in-preterm-pigs
#18
Yanqi Li, Duc Ninh Nguyen, Marita de Waard, Lars Christensen, Ping Zhou, Pingping Jiang, Jing Sun, Anders Miki Bojesen, Charlotte Lauridsen, Jens Lykkesfeldt, Trine Kastrup Dalsgaard, Stine Brandt Bering, Per Torp Sangild
Background: Holder pasteurization (HP) destroys multiple bioactive factors in donor human milk (DM), and UV-C irradiation (UVC) is potentially a gentler method for pasteurizing DM for preterm infants.Objective: We investigated whether UVC-treated DM improves gut maturation and resistance toward bacterial infections relative to HP-treated DM.Methods: Bacteria, selected bioactive components, and markers of antioxidant capacity were measured in unpasteurized donor milk (UP), HP-treated milk, and UVC-treated milk (all from the same DM pool)...
March 15, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28295465/quantification-of-piritramide-in-human-colostrum
#19
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/28294281/mice-exposed-to-infant-formula-enriched-with-polyamines-impact-on-host-transcriptome-and-microbiome
#20
Carlos Gómez-Gallego, María García Romo, Rafael Frías, María Jesús Periago, Gaspar Ros, Seppo Salminen, Maria C Collado
Previous studies using a BALB/cOlaHsd model have shown the impact that the supplementation of infant formula with polyamines has on the modulation of microbial colonization and immune system development. To contribute to deciphering and identifying new complex interactions underlying the host response to polyamines, a systems biology approach integrating data from microbiota along the gastrointestinal tract, lymphocyte populations and immune system gene expression analysis of a lactating mice model fed different diets was carried out...
March 15, 2017: Food & Function
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