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https://www.readbyqxmd.com/read/28530570/enhanced-antimicrobial-activity-of-essential-oil-components-immobilized-on-silica-particles
#1
María Ruiz-Rico, Édgar Pérez-Esteve, Andrea Bernardos, Félix Sancenón, Ramón Martínez-Máñez, María D Marcos, José M Barat
The antimicrobial activity of essential oils components (EOCs) is well-known. However, their high volatility and powerful aroma limit their application in the formulation of a wide range of food products. In this context, the antimicrobial activity of carvacrol, eugenol, thymol and vanillin grafted onto the surface of three silica supports with different morphologies, textural properties and chemical reactivities (fumed silica, amorphous silica and MCM-41) was evaluated herein. Materials characterization revealed a good immobilization yield and all the devices showed a micro-scale particle size...
October 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28530032/hcv-ag-quantification-as-a-one-step-procedure-in-diagnosing-chronic-hepatitis-c-infection-in-cameroon-the-anrs-12336-study
#2
REVIEW
Léa Duchesne, Richard Njouom, Frédéric Lissock, Gishlaine Flore Tamko-Mella, Sandrine Rallier, Lila Poiteau, Alexandre Soulier, Stéphane Chevaliez, Guy Vernet, Nicolas Rouveau, Jean-Michel Pawlotsky, Pierre-Marie Girard, Karine Lacombe
INTRODUCTION: The diagnostic procedure for chronic hepatitis C infection (CHC) usually combines anti-HCV antibody (HCV-Ab) and HCV-RNA measurement. Quantifying HCV core antigen (cAg) as a one-step procedure could shorten the diagnostic process. We aimed to assess the performance of cAg quantification in diagnosing CHC and how it is influenced by concomitant HIV or HBV infections. METHODS: The cAg was quantified by an automated assay (Abbott Diagnostics) in 465 HCV-Ab negative serum samples and 544 HCV-RNA positive serum samples (n = 1009) collected in patients from the Pasteur Center in Cameroon, some of whom were infected by HBV or HIV...
May 15, 2017: Journal of the International AIDS Society
https://www.readbyqxmd.com/read/28528802/symptomatic-dengue-infection-during-pregnancy-and-livebirth-outcomes-in-brazil-2007-13-a-retrospective-observational-cohort-study
#3
Laura B Nascimento, Cláudio M Siqueira, Giovanini E Coelho, João B Siqueira
BACKGROUND: Dengue is a major public health challenge in Brazil. We assessed the relationship between symptomatic dengue infection during pregnancy and adverse birth outcomes in the country between 2007 and 2013. METHODS: We did a retrospective observational cohort study using information reported in the Brazilian national reportable disease information system (SINAN) and the livebirth information system (SINASC) databases. We probabilistically linked confirmed dengue-positive and dengue-negative pregnancies with live childbirths using Fine-Grained Record Integration and Linkage (FRIL) software...
May 18, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28525203/-short-history-of-cranial-trauma-in-western-country-part-2
#4
J Noterman
The treatment of cranial traumatism has been the subject of numerous publications since the " corpus hippocraticum ". Following this period, the school of Alexandria will only be known thanks to Celsus. After him, Galen will determine the therapeutic attitude in accordance with the hippocratic theory. This theory will have an influence for more than 1.500 years. A better knowledge of anatomy will shake the galenic system for the first time at the Renaissance. The decisive progress will arise in the XIX century, with the emergence of experimental medicine, Pasteur's discoveries, and the greater knowledge of nervous system function...
2017: Revue Médicale de Bruxelles
https://www.readbyqxmd.com/read/28518026/outbreak-related-disease-burden-associated-with-consumption-of-unpasteurized-cow-s-milk-and-cheese-united-states-2009-2014
#5
Solenne Costard, Luis Espejo, Huybert Groenendaal, Francisco J Zagmutt
The growing popularity of unpasteurized milk in the United States raises public health concerns. We estimated outbreak-related illnesses and hospitalizations caused by the consumption of cow's milk and cheese contaminated with Shiga toxin-producing Escherichia coli, Salmonella spp., Listeria monocytogenes, and Campylobacter spp. using a model relying on publicly available outbreak data. In the United States, outbreaks associated with dairy consumption cause, on average, 760 illnesses/year and 22 hospitalizations/year, mostly from Salmonella spp...
June 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28515653/assessment-of-microbial-and-radioactive-contaminations-in-korean-cold-duck-meats-and-electron-beam-application-for-quality-improvement
#6
Kyung-A An, Yunhee Jo, Muhammad Sajid Arshad, Gui-Ran Kim, Cheorun Jo, Joong-Ho Kwon
Animal-origin food products pose serious threat to public food safety due to high microbial loads. The microbial and radioactive contaminations in commercial cold duck meat products were evaluated. Ten different lots of commercial samples (C1-C10) were classified based on type and smoking process. All samples were highly contaminated (< 4-7 Log CFU/g) with total aerobic bacteria (TAB), yeasts and molds (Y&M), and 7 samples (C1-C7) were positive for coliforms. Furthermore, three samples were contaminated with Listeria monocytogenes (C4-C6) and one with Salmonella typhimurium (C6)...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/28508297/adaptation-to-stochastic-temporal-variations-in-intratumoral-blood-flow-the-warburg-effect-as-a-bet-hedging-strategy
#7
Curtis A Gravenmier, Miriam Siddique, Robert A Gatenby
While most cancers promote ingrowth of host blood vessels, the resulting vascular network usually fails to develop a mature organization, resulting in abnormal vascular dynamics with stochastic variations that include slowing, cessation, and even reversal of flow. Thus, substantial spatial and temporal variations in oxygen concentration are commonly observed in most cancers. Cancer cells, like all living systems, are subject to Darwinian dynamics such that their survival and proliferation are dependent on developing optimal phenotypic adaptations to local environmental conditions...
May 15, 2017: Bulletin of Mathematical Biology
https://www.readbyqxmd.com/read/28505111/effects-of-mead-wort-heat-treatment-on-the-mead-fermentation-process-and-antioxidant-activity
#8
Sławomir Czabaj, Joanna Kawa-Rygielska, Alicja Z Kucharska, Jarosław Kliks
The effects of mead wort heat treatment on the mead fermentation process and antioxidant activity were tested. The experiment was conducted with the use of two different honeys (multiflorous and honeydew) collected from the Lower Silesia region (Poland). Heat treatment was performed with the use of a traditional technique (gently boiling), the more commonly used pasteurization, and without heat treatment (control). During the experiment fermentation dynamics were monitored using high performance liquid chromatography with refractive index detection (HPLC-RID)...
May 14, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28493034/-a%C3%A2-japanese-in-marburg-excerpts-from-the-memories-jiden-of-the-japanese-bacteriologist-taichi-kitashima-1870-1956
#9
Ulrike Enke, Aeka Ishihara
The heart of this article is the transmission of selected chapters from the Japanese bacteriologist Taichi Kitashima's (1870-1956) autobiographical memoirs (in Japanese, Jiden) published in 1955, in which Kitashima reports on his stay in Marburg in a very personal and subjective way. Like other Japanese physicians of his generation, Kitashima spent several years in Germany in order to work with the serum researcher Emil von Behring and continued his education there. The contact came through Kitashima's teacher Shibasaburô Kitasato, who had worked with Behring in Berlin on questions of immunology...
May 10, 2017: NTM
https://www.readbyqxmd.com/read/28479639/evaluation-of-the-influenza-sentinel-surveillance-system-in-madagascar-2009-2014
#10
Alain Rakotoarisoa, Laurence Randrianasolo, Stefano Tempia, Julia Guillebaud, Norosoa Razanajatovo, Lea Randriamampionona, Patrice Piola, Ariane Halm, Jean-Michel Heraud
PROBLEM: Evaluation of influenza surveillance systems is poor, especially in Africa. APPROACH: In 2007, the Institut Pasteur de Madagascar and the Malagasy Ministry of Public Health implemented a countrywide system for the prospective syndromic and virological surveillance of influenza-like illnesses. In assessing this system's performance, we identified gaps and ways to promote the best use of resources. We investigated acceptability, data quality, flexibility, representativeness, simplicity, stability, timeliness and usefulness and developed qualitative and/or quantitative indicators for each of these attributes...
May 1, 2017: Bulletin of the World Health Organization
https://www.readbyqxmd.com/read/28476768/the-effect-of-high-pressure-on-bacillus-licheniformis-spore-germination-and-inactivation
#11
Kristina Borch-Pedersen, Hilde Mellegård, Kai Reineke, Preben Boysen, Robert Sevenich, Toril Lindbäck, Marina Aspholm
Bacillus and Clostridium species form spores, which pose a challenge to the food industry due to their ubiquitous nature and extreme resistance. Pressurization at <300 MPa triggers spore germination by activating germination receptors (GRs), while pressurization at >300 MPa likely triggers germination by opening DPA channels present in the spores inner membrane. In this work we expose spores of Bacillus licheniformis, a species associated with food spoilage and occasionally with food poisoning, to high-pressures (HP) for holding times up to 2 h...
May 5, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28475926/headspace-oxygen-as-a-hurdle-to-improve-the-safety-of-in-pack-pasteurized-chilled-food-during-storage-at-different-temperatures
#12
Nydia Muñoz, Kanishka Bhunia, Hongchao Zhang, Gustavo V Barbosa-Cánovas, Juming Tang, Shyam Sablani
This study investigated the use of headspace oxygen in a model food system to prevent the growth of anaerobic pathogenic bacteria in in-pack pasteurized food at various storage temperatures. Three model food formulations prepared with tryptic soy broth and three agar concentrations (0.1, 0.4 and 1.0%) were sealed without removing the air from the package in high oxygen barrier pouches (OTR=0.3cm(3)/m(2)·day·atm). Important properties influencing bacterial growth, including pH and water activity (aw) were determined...
April 26, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28473474/unpasteurized-shared-human-milk-use-in-pediatric-inpatients-health-and-ethical-implications
#13
Kimberly H Barbas, Karen Sussman-Karten, Daniel Kamin, Susanna Y Huh
Growing evidence supporting the health benefits of human milk, particularly in the preterm population, has led to rising demand for donor human milk in NICUs and pediatric hospitals. There are no previous reports describing the use of unpasteurized shared human milk (USHM) in the hospital setting, but the use of USHM solicited from community donors through social networks appears to be common. Many pediatric hospitals permit inpatients to receive breast milk that has been screened and pasteurized by a human milk banking organization and will provide pasteurized donor human milk (PDHM) only to infants who are preterm or have specific medical conditions...
May 4, 2017: Hospital Pediatrics
https://www.readbyqxmd.com/read/28473296/crystallographic-analysis-of-the-ternary-complex-of-octanoate-and-n-acetyl-l-methionine-with-human-serum-albumin-reveals-the-mode-of-their-stabilizing-interactions
#14
Akito Kawai, Victor T G Chuang, Yosuke Kouno, Keishi Yamasaki, Shuichi Miyamoto, Makoto Anraku, Masaki Otagiri
During pasteurization and storage of albumin products, Sodium octanoate (Oct) and N-acethyl-L-tryptophan (N-AcTrp) are used as the thermal stabilizer and the antioxidant for human serum albumin (HSA), respectively. We recently reported that N-acethyl-L-methionine (N-AcMet) is an antioxidant for HSA, which is superior to N-AcTrp when it is especially exposed to light during storage. The objective of the present study is to clarify the molecular mechanism responsible for the HSA protective effect of Oct and N-AcMet based on their ternary complex structure...
May 1, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28472025/addressing-a-yellow-fever-vaccine-shortage-united-states-2016-2017
#15
Mark D Gershman, Kristina M Angelo, Julian Ritchey, David P Greenberg, Riyadh D Muhammad, Gary Brunette, Martin S Cetron, Mark J Sotir
Recent manufacturing problems resulted in a shortage of the only U.S.-licensed yellow fever vaccine. This shortage is expected to lead to a complete depletion of yellow fever vaccine available for the immunization of U.S. travelers by mid-2017. CDC, the Food and Drug Administration (FDA), and Sanofi Pasteur are collaborating to ensure a continuous yellow fever vaccine supply in the United States. As part of this collaboration, Sanofi Pasteur submitted an expanded access investigational new drug (eIND) application to FDA in September 2016 to allow for the importation and use of an alternative yellow fever vaccine manufactured by Sanofi Pasteur France, with safety and efficacy comparable to the U...
May 5, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28462183/antibacterial-efficacy-of-tender-coconut-water-cocos-nucifera-l-on-streptococcus-mutans-an-in-vitro-study
#16
J N Rukmini, Sunkari Manasa, Chenna Rohini, Lavanya Putchla Sireesha, Sachan Ritu, G K Umashankar
OBJECTIVE: The antibacterial property of coconut, the presence of lauric acid, and the ability to extract antimicrobial peptides Cn-AMP (1, 2, and 3) from tender coconut water has drawn attention on its effectiveness in normal consumption. An in-vitro experimental study was conducted to evaluate the antimicrobial efficacy of tender coconut water in its natural state on Streptococcus mutans. MATERIALS AND METHODS: Fresh tender coconut water and pasteurized tender coconut water were taken as test samples, dimethyl formamide was used as the negative control, and 0...
March 2017: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/28460988/thermal-treatment-of-lupin-based-milk-alternatives-impact-on-lupin-proteins-and-the-network-of-respective-lupin-based-yogurt-alternatives
#17
A Hickisch, K Bindl, R F Vogel, S Toelstede
In this study lupin-based milk alternative (LBMA), obtained from protein isolate of Lupinus angustifolius cv. Boregine, was homogenized and was subjected to different heat treatments (unheated; pasteurized: 80°C, 60s; ultra-high temperature heating (UHT): 140°C, 10s). Upon thermal treatment, lupin proteins, namely β-conglutin and α-conglutin, were stepwise denatured, which was accompanied by the exposure of masked sulfhydryl groups, the decrease of free sulfhydryl groups and reoxidation to disulfide bridges...
November 2016: Food Research International
https://www.readbyqxmd.com/read/28459877/database-for-the-ampc-alleles-in-acinetobacter-baumannii
#18
Nabil Karah, Keith A Jolley, Ruth M Hall, Bernt Eric Uhlin
Acinetobacter baumannii is a troublesome opportunistic pathogen with a high capacity for clonal dissemination. We announce the establishment of a database for the ampC locus in A. baumannii, in which novel ampC alleles are differentiated based on the occurrence of ≥ 1 nucleotide change, regardless of whether it is silent or missense. The database is openly accessible at the pubmlst platform for A. baumannii (http://pubmlst.org/abaumannii/). Forty-eight distinctive alleles of the ampC locus have so far been identified and deposited in the database...
2017: PloS One
https://www.readbyqxmd.com/read/28458190/characterization-of-four-paenibacillus-species-isolated-from-pasteurized-chilled-ready-to-eat-meals
#19
Mariette Helmond, Masja N Nierop Groot, Hermien van Bokhorst-van de Veen
Food spoilage is often caused by microorganisms. The predominant spoilage microorganisms of pasteurized, chilled ready-to-eat (RTE) mixed rice-vegetable meals stored at 7°C were isolated and determined as Paenibacillus species. These sporeforming psychrotrophic bacteria are well adapted to grow in the starch-rich environment of pasteurized and chilled meals. Growth of the Paenibacillus isolates appeared to be delayed by decreased (<7°C) temperature or chilled temperature (7°C) combined with decreased pH (<5), increased sodium chloride (>5...
April 20, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28456411/the-effect-of-homogenization-pressure-on-the-flavor-and-flavor-stability-of-whole-milk-powder
#20
Curtis W Park, MaryAnne Drake
Flavor is one of the key factors that can limit the application and shelf life of dried dairy ingredients. Many off-flavors are caused during ingredient manufacture that carry through into ingredient applications and decrease consumer acceptance. The objective of this research was to investigate the effect of homogenization pressure on the flavor and flavor stability of whole milk powder (WMP). Whole milk powder was produced from standardized pasteurized whole milk that was evaporated to 50% solids (wt/wt), homogenized in 2 stages with varying pressures (0/0, 5...
April 26, 2017: Journal of Dairy Science
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