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https://www.readbyqxmd.com/read/29793207/infectivity-reduction-efficacy-of-uv-irradiation-and-peracetic-acid-uv-combined-treatment-on-ms2-bacteriophage-and-murine-norovirus-in-secondary-wastewater-effluent
#1
ShihChi Weng, Nathan Dunkin, Kellogg J Schwab, James McQuarrie, Kati Bell, Joseph G Jacangelo
Peracetic acid (PAA) is a strong oxidant/bactericide that has been applied in various industries (e.g., food processing, pharmaceuticals, medical device sterilization, etc.) as a disinfectant. There is increasing interest in using PAA for wastewater disinfection because it does not form halogenated byproducts, and no post-treatment quenching is required. Previous studies have demonstrated good efficiency in controlling bacteria in wastewater, but limited information is available for viruses, especially those hosted by mammals (e...
May 21, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29792671/the-chemoattractant-glorin-is-inactivated-by-ester-cleavage-during-early-multicellular-development-of-polysphondylium-pallidum
#2
Daniel Heinrich, Robert Barnett, Luke Tweedy, Robert Insall, Pierre Stallforth, Thomas Winckler
Among the amoebozoan species capable of forming fruiting bodies, the dictyostelid social amoebae stand out since they form true multicellular organisms by means of single cell aggregation. Upon food depletion, cells migrate across gradients of extracellular signals initiated by cells in aggregation centers. The model species that is widely used to study multicellular development of social amoebae, Dictyostelium discoideum, uses cyclic adenosine monophosphate (cAMP) as a chemoattractant to coordinate aggregation...
May 24, 2018: ACS Chemical Biology
https://www.readbyqxmd.com/read/29791992/role-of-the-duodenum-in-the-pathogenesis-of-functional-dyspepsia-a-paradigm-shift
#3
REVIEW
Hye-Kyung Jung, Nicholas J Talley
Functional dyspepsia (FD) is a common disorder characterized by chronic epigastric pain or burning, or bothersome postprandial fullness or early satiation, without a definitive organic cause. The pathogenesis of FD is likely heterogeneous. Classically, motor disorders, visceral hypersensitivity, and brain-gut interactions have been implicated in the pathophysiology of FD, but recently an important role for chronic low-grade inflammation and post-infectious gastroenteritis in FD has been reported and confirmed...
May 23, 2018: Journal of Neurogastroenterology and Motility
https://www.readbyqxmd.com/read/29791882/simulation-based-assessment-of-the-impact-of-fertiliser-and-herbicide-application-on-freshwater-ecosystems-at-the-three-gorges-reservoir-in-china
#4
Björn Scholz-Starke, Li Bo, Andreas Holbach, Stefan Norra, Tilman Floehr, Henner Hollert, Martina Roß-Nickoll, Andreas Schäffer, Richard Ottermanns
Dams have profound impacts on river ecosystems, amongst them inundation of land, altered dynamics of the water body or uprising reservoir backwaters influencing tributary or upstream river sections. Along the outstandingly ecologically important Yangtze River in China, the Three Gorges Reservoir (TGR) is the largest project, covering an area of 1080 km2 . From the beginning, the dam-project came in for criticism on increasing environmental risks due to sub-merging former industrial and urban areas. We simulated dynamics of biotic and abiotic components of the TGR ecosystem (trophic guilds of aquatic organisms, hydrodynamics, nutrients), as well as the behaviour of the herbicidal substance propanil and its metabolites 3,4-Dichloroaniline (DCA) and 3,3',4,4'-tetrachloroazoxybenzene (TCAB)...
May 20, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29791313/acute-and-subacute-toxicity-of-aqueous-extract-of-the-tuber-of-kedrostis-africana-l-cogn-in-wistar-rats
#5
Jeremiah Oshiomame Unuofin, Gloria Aderonke Otunola, Anthony Jide Afolayan
Kedrostis africana (L.) Cogn (Cucurbitaceae) is used in South African traditional medicine and pharmacopoeia as an emetic, purgative and diuretic, and it is used against dropsy in the management of obesity. Aim of the study In this study, acute and subacute toxicity of aqueous extract of K. africanatuber was evaluated in male and female Wistar rats in order to assess its safety profile. Materials and methods In acute toxicity, the effects of a single oral dose (2,000 and 5,000 mg/kg) of aqueous extract was determined in both sexes...
May 23, 2018: Journal of Complementary & Integrative Medicine
https://www.readbyqxmd.com/read/29791305/commercial-frozen-mice-used-by-owners-to-feed-reptiles-are-highly-externally-contaminated-with-salmonella-enteritidis-pt8
#6
Clara Marin, Francesca Martelli, André Rabie, Robert Davies
Salmonella remains one of the most prevalent zoonoses worldwide. Although salmonellosis is commonly associated with the consumption of contaminated food, it has been estimated that up to 11% of Salmonella infections overall are acquired from direct or indirect contact with animals, including reptiles. In 2016, an outbreak of Salmonella Enteritidis involving multiple cases, especially children, associated with reptile contact and contaminated feeder mice was reported in the United Kingdom. The aim of this study was to investigate Salmonella external and internal contamination of stored commercial frozen feeder mice used to feed reptiles and obtained from the same supplier involved in the outbreak...
May 23, 2018: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/29790449/pathology-of-coccidioidomycosis-in-llamas-and-alpacas
#7
Julian A Fernandez, Mireia N Hidalgo, Emir Hodzic, Santiago S Diab, Francisco A Uzal
Coccidioidomycosis is a fungal disease caused by either Coccidioides immitis or Coccidioides posadasii. Anecdotal evidence suggests that camelids are particularly susceptible to this disease and that a relatively large percentage of pneumonias in these animals are caused by Coccidioides spp. In a search of 21 y (1992-2013) of records from the California Animal Health and Food Safety Laboratory, we found 79 cases of coccidioidomycosis diagnosed in camelids; 66 (84%) had pneumonia and 13 (16%) had lesions only in organs other than the lungs...
May 1, 2018: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/29789501/differentiation-between-organic-and-non-organic-apples-using-diffraction-grating-and-image-processing-a-cost-effective-approach
#8
Nanfeng Jiang, Weiran Song, Hui Wang, Gongde Guo, Yuanyuan Liu
As the expectation for higher quality of life increases, consumers have higher demands for quality food. Food authentication is the technical means of ensuring food is what it says it is. A popular approach to food authentication is based on spectroscopy, which has been widely used for identifying and quantifying the chemical components of an object. This approach is non-destructive and effective but expensive. This paper presents a computer vision-based sensor system for food authentication, i.e., differentiating organic from non-organic apples...
May 23, 2018: Sensors
https://www.readbyqxmd.com/read/29788538/hepatitis-e-virus-in-south-america-the-current-scenario
#9
María Belén Pisano, Maribel Martínez Wassaf, Santiago Mirazo, Anabella Fantilli, Juan Arbiza, José Debes, Viviana E Ré
Hepatitis E virus (HEV) is one of the most frequent causes of acute viral hepatitis of enteric transmission worldwide. In South America the overall epidemiology has been little studied, and the burden of the disease remains largely unknown. A research of all scientific articles about HEV circulation in South America until November 2017 was carried out. Human seroprevalences of HEV varied according to the studied population: blood donors presented prevalence rates ranging from 1.8 to 9.8%, while reports from HIV-infected individuals, transplant recipients and patients on hemodialysis showed higher prevalence rates...
May 22, 2018: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29788151/sporulation-environment-influences-spore-properties-in-bacillus-evidence-and-insights-on-underlying-molecular-and-physiological-mechanisms
#10
Christelle Bressuire-Isoard, Véronique Broussolle, Frédéric Carlin
Bacterial spores are resistant to physical and chemical insults, which make them a major concern for public health and for industry. Spores help bacteria to survive extreme environmental conditions that vegetative cells cannot tolerate. Spore resistance and dormancy are important properties for applications in medicine, veterinary health, food safety, crop protection, and other domains. The resistance of bacterial spores results from a protective multilayered structure and from the unique composition of the spore core...
May 17, 2018: FEMS Microbiology Reviews
https://www.readbyqxmd.com/read/29786841/development-of-a-chlorine-dosing-strategy-for-fresh-produce-washing-process-to-maintain-microbial-food-safety-and-minimize-residual-chlorine
#11
Xi Chen, Yen-Con Hung
The residual free chlorine level in fresh produce wash solution is closely correlated to the chemical and microbial safety of produce. Excess amount of free chlorine can quickly react with organic matters to form hazardous disinfection by-products (DBPs) above EPA-permitted levels, whereas deficiency of residual chlorine in produce wash solution may result in incompletely removing pathogens on produce. The purpose of this study was to develop a chlorine dosing strategy to optimize the chlorine dosage during produce washing process without impacting the microbial safety of fresh produce...
May 22, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29786587/legal-protection-of-public-health-through-control-over-genetically-modified-food
#12
Nataliya Gutorova, Olena Batyhina, Maryna Trotska
OBJECTIVE: Introduction: Science is constantly being developed which leads to both positive and negative changes in public health and the environment. One of the results of scientific progress is introduction of food based on genetically modified organisms whose effects on human health, to date, remain scantily studied and are ambiguous. The aim: to determine how human health can be influenced by food production based on genetically modified organisms. PATIENTS AND METHODS: Materials and methods: international acts, data of international organizations and conclusions of scientists have been examined and used in the study...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29786502/best-practices-for-financial-sustainability-of-healthy-food-service-guidelines-in-hospital-cafeterias
#13
Stephanie Jilcott Pitts, Brittany Schwartz, John Graham, Amy Lowry Warnock, Angelo Mojica, Erin Marziale, Diane Harris
In February and March 2017 we examined barriers and facilitators to financial sustainability of healthy food service guidelines and synthesized best practices for financial sustainability in retail operations. We conducted qualitative, in-depth interviews with 8 hospital food service directors to learn more about barriers and facilitators to financial sustainability of healthy food service guidelines in retail food service operations. Analysts organized themes around headers in the interview guide and also made note of emerging themes not in the original guide...
May 17, 2018: Preventing Chronic Disease
https://www.readbyqxmd.com/read/29786466/mineralo-organic-nanoparticles-in-health-and-disease-an-overview-of-recent-findings
#14
Jan Martel, Cheng-Yeu Wu, Hsin-Hsin Peng, John D Young
We observed earlier that mineralo-organic nanoparticles form in human body fluids when the concentrations of calcium, carbonate and phosphate exceed saturation. The particles have been shown to represent mineral precursors in developing bones and teeth as well as in ectopic calcification and kidney stones. Recent studies suggest that the mineral particles may also be involved in other physiological processes, including immune tolerance against the gut microbiota and food antigens. We review here the involvement of mineralo-organic nanoparticles in physiological and pathological processes and discuss recent findings that reveal novel and unexpected roles for these particles in the human body...
May 22, 2018: Nanomedicine
https://www.readbyqxmd.com/read/29785892/the-monogenean-paradiplozoon-ichthyoxanthon-behaves-like-a-micropredator-on-two-of-its-hosts-as-indicated-by-stable-isotopes
#15
B Sures, M Nachev, B M Gilbert, Q M Dos Santos, M A Jochmann, D Köster, T C Schmidt, A Avenant-Oldewage
The analysis of stable isotopes of carbon and nitrogen has been used as a fingerprint for understanding the trophic interactions of organisms. Most of these studies have been applied to free-living organisms, while parasites have largely been neglected. Studies dealing with parasites so far have assessed the carbon and nitrogen signatures in endoparasites or ectoparasites of different hosts, without showing general trends concerning the nutritional relationships within host-parasite associations. Moreover, in most cases such systems involved a single host and parasite species...
May 22, 2018: Journal of Helminthology
https://www.readbyqxmd.com/read/29785006/the-era-of-immunogenomics-immunopharmacogenomics
#16
REVIEW
Makda Zewde, Kazuma Kiyotani, Jae-Hyun Park, Hua Fang, Kai Lee Yap, Poh Yin Yew, Houda Alachkar, Taigo Kato, Tu H Mai, Yuji Ikeda, Tatsuo Matsuda, Xiao Liu, Lili Ren, Boya Deng, Makiko Harada, Yusuke Nakamura
Although germline alterations and somatic mutations in disease cells have been extensively analyzed, molecular changes in immune cells associated with disease conditions have not been characterized in depth. It is clear that our immune system has a critical role in various biological and pathological conditions, such as infectious diseases, autoimmune diseases, drug-induced skin and liver toxicity, food allergy, and rejection of transplanted organs. The recent development of cancer immunotherapies, particularly drugs modulating the immune checkpoint molecules, has clearly demonstrated the importance of host immune cells in cancer treatments...
May 21, 2018: Journal of Human Genetics
https://www.readbyqxmd.com/read/29784788/mistimed-food-intake-and-sleep-alters-24-hour-time-of-day-patterns-of-the-human-plasma-proteome
#17
Christopher M Depner, Edward L Melanson, Andrew W McHill, Kenneth P Wright
Proteomics holds great promise for understanding human physiology, developing health biomarkers, and precision medicine. However, how much the plasma proteome varies with time of day and is regulated by the master circadian suprachiasmatic nucleus brain clock, assessed here by the melatonin rhythm, is largely unknown. Here, we assessed 24-h time-of-day patterns of human plasma proteins in six healthy men during daytime food intake and nighttime sleep in phase with the endogenous circadian clock (i.e., circadian alignment) versus daytime sleep and nighttime food intake out of phase with the endogenous circadian clock (i...
May 21, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29784336/a-sensitive-colorimetric-immunosensor-based-on-cu-mofs-and-hrp-for-detection-of-dibutyl-phthalate-in-environmental-and-food-samples
#18
Nuanfei Zhu, Yanmin Zou, Menglu Huang, Shuaibing Dong, Xiangyang Wu, Guoxi Liang, Zhixiang Han, Zhen Zhang
A sensitive and artful colorimetric immunosensor based on horseradish peroxidase (HRP) was designed by labelling metal-organic frameworks (Cu-MOFs) on the second antibody (Cu-MOFs@Ab2 ) as signal amplification for the detection of trace dibutyl phthalate (DBP). In this system, when Cu-MOFs@Ab2 was captured by antigen- primary antibody (Ab1 ) complex, tremendous Cu(II) will be released from Cu-MOFs in the presence of nitric acid (HNO3 ), and Cu(II) will be further reduced to Cu(I) after the addition of sodium ascorbate (SA), consequently, inhibiting the HRP to catalyse the colorless 3,3',5,5'-tetramethylbenzidine (TMB) into blue oxidized TMB (ox TMB)...
August 15, 2018: Talanta
https://www.readbyqxmd.com/read/29784312/core-shell-fe-3-o-4-polydopamine-nanoparticles-as-sorbent-for-magnetic-dispersive-solid-phase-extraction-of-copper-from-food-samples
#19
Emre Yavuz, Şerife Tokalıoğlu, Şaban Patat
In the present study, core-shell Fe3 O4 polydopamine nanoparticles were synthesized and used for the first time as an adsorbent for the vortex assisted magnetic dispersive solid phase extraction of copper from food samples. After elution, copper in the solutions was determined by FAAS. The adsorbent was characterized using X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, Brunauer-Emmett-Teller surface area, and zeta potential measurements...
October 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29783622/risk-mitigation-for-immunocompromised-consumers-of-mucormycete-spoiled-and-fermented-foods-germain-guidance-and-remaining-needs
#20
REVIEW
Abigail B Snyder, Randy W Worobo
Mucoralean invasive fungal infections, while unusual among the general population, have a high mortality rate among immunocompromised individuals who become infected. They are also common spoilage organisms in cultured dairy products, some fresh produce, and baked goods. Additionally, Mucor and Rhizopus spp. are utilized in the production of traditional fermented foods including mold ripened cheeses and fermented soy products. The risk that consumption of these foods poses to immunocompromised consumers has been previously identified...
May 18, 2018: Microorganisms
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