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https://www.readbyqxmd.com/read/28644889/evaluation-of-different-serological-assays-for-early-diagnosis-of-leptospirosis-in-martinique-french-west-indies
#1
Christophe Courdurie, Yohann Le Govic, Pascale Bourhy, Dorothee Alexer, Karine Pailla, Rafaelle Theodose, Raymond Cesaire, Jacques Rosine, Patrick Hochedez, Claude Olive
BACKGROUND: Leptospirosis is a potentially life-threatening but curable zoonosis whose prognosis depends on accurate and timely diagnosis. Because of its non-specific clinical presentation, laboratory testing is essential to confirm the diagnosis. Here, we aimed to assess the performance of two enzyme-linked immunosorbent assays (ELISAs) (ELISA Serion and ELISA-Hb Pasteur) and one immunodot (GenBio) using quantitative PCR (qPCR) as gold standard, instead of the traditional microscopic agglutination test, for the diagnosis of acute leptospirosis in an endemic area...
June 23, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28644483/pasteur-and-the-art-of-chirality
#2
Joseph Gal
No abstract text is available yet for this article.
July 2017: Nature Chemistry
https://www.readbyqxmd.com/read/28638845/detection-of-the-northeastern-african-rift-valley-fever-virus-lineage-during-the-2015-outbreak-in-mauritania
#3
Ndeye Sakha Bob, Hampâté Bâ, Gamou Fall, Elkhalil Ishagh, Mamadou Y Diallo, Abdourahmane Sow, Pape Mbacké Sembene, Ousmane Faye, Brahim El Kouri, Mohamed Lemine Sidi, Amadou Alpha Sall
BACKGROUND: Rift Valley fever (RVF) is an acute viral anthropozoonosis that causes epizootics and epidemics among livestock population and humans. Multiple emergences and reemergences of the virus have occurred in Mauritania over the last decade. This article describes the outbreak that occurred in 2015 in Mauritania and reports the results of serological and molecular investigations of blood samples collected from suspected RVF patients. METHODS: An RVF outbreak was reported from 14 September to 26 November 2015 in Mauritania...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28630706/effects-of-feeding-untreated-pasteurized-and-acidified-waste-milk-and-bunk-tank-milk-on-the-performance-serum-metabolic-profiles-immunity-and-intestinal-development-in-holstein-calves
#4
Yang Zou, Yajing Wang, Youfei Deng, Zhijun Cao, Shengli Li, Jiufeng Wang
BACKGROUND: The present experiment was performed to assess the effects of different sources of milk on the growth performance, serum metabolism, immunity, and intestinal development of calves. Eighty-four Holstein male neonatal calves were assigned to one of the following four treatment groups: those that received bunk tank milk (BTM), untreated waste milk (UWM), pasteurized waste milk (PWM), and acidified waste milk (AWM) for 21 d. RESULTS: Calves in the BTM and AWM groups consumed more starter (P < 0...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28624549/evaluation-of-a-new-trilocus-sequence-based-multiplex-pcr-to-detect-major-acinetobacter-baumannii-clonal-complexes-circulating-in-brazil
#5
Francielli Mahnic de Vasconcellos, Monique Ribeiro Tiba-Casas, Laís Calissi Brisolla Tavares, William Vaz de Souza, Doroti de Oliveira Garcia, Carlos Henrique Camargo
Dissemination of carbapenem-resistant Acinetobacter baumannii (CRAB) is mainly due to the spread of clonal lineages, particularly those included into the clonal complexes (CC) CC1, CC2, CC15, CC25, and CC79. We evaluated the usefulness of a recently modified PCR-based trilocus sequence-based typing (m3LST) in comparison with the standard multilocus sequence typing (MSLT) of 7 housekeeping genes as per the Institute Pasteur Scheme to assign the clonal complexes in CRAB. A collection of 78 CRAB isolated from 67 different Brazilian health institutions was submitted to both methodologies, and concordance rate was calculated...
June 15, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28624284/comparing-the-effect-of-homogenization-and-heat-processing-on-the-properties-and-in-vitro-digestion-of-milk-from-organic-and-conventional-dairy-herds
#6
D L Van Hekken, M H Tunick, D X Ren, P M Tomasula
We compared the effects of homogenization and heat processing on the chemical and in vitro digestion traits of milk from organic and conventional herds. Raw milk from organic (>50% of dry matter intake from pasture) and conventional (no access to pasture) farms were adjusted to commercial whole and nonfat milk fat standards, and processed with or without homogenization, and with high-temperature-short-time or UHT pasteurization. The milk then underwent in vitro gastrointestinal digestion. Comparison of milk from organic and conventional herds showed that the milks responded to processing in similar ways...
June 14, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28623027/ade-and-dengue-vaccination
#7
Ruth Aralí Martínez-Vega, Gabriel Carrasquila, Expedito Luna, José Ramos-Castañeda
The vaccine against Dengue virus (DENV), Dengvaxia® (CYD), produced by Sanofi-Pasteur, has been registered by several national regulatory agencies; nevertheless, the performance and security of this vaccine have been challenged in a series of recent papers. In this work, we intend to contribute to the debate by analyzing the concept of an enhancing vaccine, presenting objections to the epidemiological model base of the concept and, likewise, presenting data that contradict that concept.
June 13, 2017: Vaccine
https://www.readbyqxmd.com/read/28620907/stability-of-astaxanthin-loaded-nanostructured-lipid-carriers-in-beverage-systems
#8
Fardin Tamjidi, Mohammad Shahedi, Jaleh Varshosaz, Ali Nasirpour
BACKGROUND: Nanostructured lipid carriers (NLCs) offer many potential benefits for incorporating lipophilic molecules into clear to opaque food systems. This study examined the stability of astaxanthin-loaded NLCs (Ax-NLCs) in model (solutions with 0 or 12% sucrose; pH 3, 7), semi-actual (whey) and actual (non-alcoholic beer) beverages during 30-60 days storage at 6 or 20 °C. RESULTS: Ax-NLCs (Z-average size: 94 nm), containing α-tocopherol and EDTA as antioxidants, were stabilized with Tween 80 and lecithin, and mixed with the aforementioned beverages at the volume ratio of 3:97...
June 16, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28614672/composition-and-variation-of-macronutrients-immune-proteins-and-human-milk-oligosaccharides-in-human-milk-from-nonprofit-and-commercial-milk-banks
#9
Laura Meredith-Dennis, Gege Xu, Elisha Goonatilleke, Carlito B Lebrilla, Mark A Underwood, Jennifer T Smilowitz
BACKGROUND: When human milk is unavailable, banked milk is recommended for feeding premature infants. Milk banks use processes to eliminate pathogens; however, variability among methods exists. Research aim: The aim of this study was to compare the macronutrient (protein, carbohydrate, fat, energy), immune-protective protein, and human milk oligosaccharide (HMO) content of human milk from three independent milk banks that use pasteurization (Holder vs. vat techniques) or retort sterilization...
June 1, 2017: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
https://www.readbyqxmd.com/read/28613443/green-pea-and-garlic-puree-model-food-development-for-thermal-pasteurization-process-quality-evaluation
#10
Ellen R Bornhorst, Juming Tang, Shyam S Sablani, Gustavo V Barbosa-Cánovas, Fang Liu
Development and selection of model foods is a critical part of microwave thermal process development, simulation validation, and optimization. Previously developed model foods for pasteurization process evaluation utilized Maillard reaction products as the time-temperature integrators, which resulted in similar temperature sensitivity among the models. The aim of this research was to develop additional model foods based on different time-temperature integrators, determine their dielectric properties and color change kinetics, and validate the optimal model food in hot water and microwave-assisted pasteurization processes...
June 14, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28613401/nutrient-profiles-and-volatile-odorous-compounds-of-raw-milk-after-exposure-to-electron-beam-pasteurizing-doses
#11
Lindsay R Ward, Chris R Kerth, Suresh D Pillai
Raw milk is known to contain relatively high numbers of microorganisms, some of which include microbial pathogens. Electron beam (eBeam) processing is a nonthermal pasteurization food processing technology. The underlying hypothesis was that eBeam processing will not negatively influence the composition, nutrient content, and aroma profile of raw milk. Raw milk samples were exposed to eBeam doses of 1 and 2 kGy, since our studies had shown that 2 kGy is suitable for raw milk pasteurization. The untreated and eBeam-treated raw milk samples were analyzed to detect changes in lactose, vitamin B2 , vitamin B12 , and calcium concentrations...
June 14, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28610787/spolsimilaritysearch-a-web-tool-to-compare-and-search-similarities-between-spoligotypes-of-mycobacterium-tuberculosis-complex
#12
David Couvin, Thierry Zozio, Nalin Rastogi
Spoligotyping is one of the most commonly used polymerase chain reaction (PCR)-based methods for identification and study of genetic diversity of Mycobacterium tuberculosis complex (MTBC). Despite its known limitations if used alone, the methodology is particularly useful when used in combination with other methods such as mycobacterial interspersed repetitive units - variable number of tandem DNA repeats (MIRU-VNTRs). At a worldwide scale, spoligotyping has allowed identification of information on 103,856 MTBC isolates (corresponding to 98049 clustered strains plus 5807 unique isolates from 169 countries of patient origin) contained within the SITVIT2 proprietary database of the Institut Pasteur de la Guadeloupe...
July 2017: Tuberculosis
https://www.readbyqxmd.com/read/28609649/resistance-of-legionella-and-acanthamoeba-mauritaniensis-to-heat-treatment-as-determined-by-relative-and-quantitative-polymerase-chain-reactions
#13
Penelope H Dobrowsky, Sehaam Khan, Wesaal Khan
Legionella and Acanthamoeba spp. persist in harvested rainwater pasteurized at high temperatures (> 72°C) and the interaction mechanisms exhibited between these organisms need to be elucidated. The resistance of two Legionella reference strains (Legionella pneumophila ATCC 33152 and Legionella longbeachae ATCC 33462), three environmental strains [Legionella longbeachae (env.), Legionella norrlandica (env.) and Legionella rowbothamii (env.)] and Acanthamoeba mauritaniensis ATCC 50676 to heat treatment (50-90°C) was determined by monitoring culturability and viability [ethidium monoazide quantitative polymerase chain reaction (EMA-qPCR)]...
June 10, 2017: Environmental Research
https://www.readbyqxmd.com/read/28605941/application-and-possible-benefits-of-high-hydrostatic-pressure-or-high-pressure-homogenization-on-beer-processing-a-review
#14
Lígia Mr Santos, Fabiano A Oliveira, Elisa Hr Ferreira, Amauri Rosenthal
Beer is the most consumed beverage in the world, especially in countries such as USA, China and Brazil.It is an alcoholic beverage made from malted cereals, and the barley malt is the main ingredient, added with water, hops and yeast. High-pressure processing is a non-traditional method to preserve food and beverages. This technology has become more interesting compared to heat pasteurization, due to the minimal changes it brings to the original nutritional and sensory characteristics of the product, and it comprises two processes: high hydrostatic pressure, which is the most industrially used process, and high-pressure homogenization...
January 1, 2017: Food Science and Technology International, Ciencia y Tecnología de Los Alimentos Internacional
https://www.readbyqxmd.com/read/28605892/improvement-of-thermal-stability-of-bcg-vaccine
#15
Fatemeh Jahanbakhsh Sefidi, Homan Kaghazian, Gholam Ali Moradli, Seyed Mehdi Hassanzadeh
BAckground: Thermal stability (TS) is a part of the BCG vaccine characterization by which consistency of process in BCG vaccine production could be confirmed. To enhance the TS of the vaccine, some prevalent stabilizers in different concentration were added to the final formulation of BCG bulk prior to Freeze-drying process. We found a formulation more effective than the current stabilizer for retaining the higher viability of lyophilized BCG vaccine produced by Pasteur Institute of Iran...
June 13, 2017: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/28604100/molecular-epidemiology-of-carbapenem-resistant-acinetobacter-baumannii-in-greece-an-extended-review-2000-2015
#16
Theodoros Karampatakis, Charalampos Antachopoulos, Athanassios Tsakris, Emmanuel Roilides
Carbapenem-resistant Acinetobacter baumannii (CRAB) is endemic in Greece. CRAB initially emerged in 2000 and since then, carbapenemases still have a crucial role in CRAB appearance, except for a few cases resulting from efflux pump or outer-membrane protein mechanisms. OXA-type carbapenemases present the highest prevalence worldwide and bla OXA-23-like and bla OXA-58-like are the most important genes found; VIM-yielding CRAB have also been detected, while a single CRAB isolate producing NDM has quite recently emerged in Greece...
June 12, 2017: Future Microbiology
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/28603695/the-pag-gene-of-pxo1-is-involved-in-capsule-biosynthesis-of-bacillus-anthracis-pasteur-ii-strain
#18
Xudong Liang, Jin Zhu, Zhongzhi Zhao, Feng Zheng, Huijuan Zhang, Jianchun Wei, Yon Ji, Yinduo Ji
The poly-γ-D-glutamic acid capsule and anthrax toxins are major virulence factors of Bacillus anthracis. Genes responsible for capsule biosynthesis are located on pXO2, whereas genes encoding the toxins, which are composed of edema factors, lethal factors, and protective antigens (PA), are located on pXO1. In this study, we found that the pag null mutation not only eliminated the production of the protective antigen, it also eliminated the ability of the B. anthracis Pasteur II strain to form capsules. qPCR analysis revealed that the deletion of pag decreased the transcription levels of the capABCD operon and its regulatory genes acpA and acpB...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28602109/air-and-water-processes-do-not-produce-the-same-high-quality-pasteurization-of-donor-human-milk
#19
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/28598256/integrated-immunogenicity-analysis-of-a-tetravalent-dengue-vaccine-up-to-4%C3%A2-years-after-vaccination
#20
Claire Vigne, Martin Dupuy, Aline Richetin, Bruno Guy, Nicholas Jackson, Matthew Bonaparte, Branda Hu, Melanie Saville, Danaya Chansinghakul, Fernando Noriega, Eric Plennevaux
Two large pivotal phase III studies demonstrated the efficacy of the tetravalent dengue vaccine (CYD-TDV; Dengvaxia®, Sanofi Pasteur) against all dengue serotypes. Here we present an unprecedented integrated summary of the immunogenicity of CYD-TDV to identify the parameters driving the neutralizing humoral immune response and evolution over time. We summarized the immunogenicity profiles of a three-dose schedule of CYD-TDV administered 6 months apart across ten phase II and six phase III trials undertaken in endemic and non-endemic countries...
June 9, 2017: Human Vaccines & Immunotherapeutics
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