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Bertrand Micheline - - 2011
1. The feeding range of an individual is central to food web dynamics as it determines the spatial scale of predator-prey interactions. However, despite recognition of its importance as a driving force in population dynamics, establishing feeding range is seldom done as detailed information on trophic interactions is difficult to obtain. ...
Guenther Susanne - - 2011
Soft-ripened cheeses belong to the type of food most often contaminated with Listeria monocytogenes, and they have been implicated in several outbreaks of listeriosis. Bacteriophages represent an attractive way to combat foodborne pathogens without affecting other properties of the food. We used the broad host range, virulent Listeria phage A511 ...
Mulder Kelly A - - 2011
To determine the intake distribution and food sources of sodium among young children. Dietary intake was determined for 190 children, 16 months to 6 years of age, using a food frequency questionnaire completed by interviewing a parent. Dietary intake of all nutrients, including dietary sodium, was analyzed. The major food ...
Soekirman - - 2011
Nutrition history in Indonesia began in 1887, when Christiann Eijkman discovered the relationship between vitamin B-1 deficiency and beri-beri. In the 1950's, the socialization of nutrition messages started with the introduction of "Healthy Four Perfect Five" (Empat Sehat Lima Sempurna-ESLS). For the next 25 years after that, ESLS became a ...
Choudhary G P - - 2011
In the present investigation, Emblica officinalis Gaerth. Syn Phyllanthus emblica linn. has been selected on account of its large scale use in manufacture of indigenous drugs. Among the various fungal, species, Aspergillus flavus was the most dominant and frequent species in most of food stuffs studied. The total population of ...
Emam A - - 2010
Bioassay-guided separation with an eye toward antifungal activity led to the isolation of the new alkaloid 5-(1̀,1̀-dimethylallyl)-8-hydroxyfuro[2-3-b] quinoline (1) and the known biscoumarin daphnoretin (2) as the active constituents of the chloroform extract obtained from the leaves of Ruta chalepensis. The structures of the metabolites were elucidated on the basis ...
Hansen Helle R HR Institute of Biological and Environmental Sciences, University of Aberdeen, Cruickshank Building, St Machar Drive, Aberdeen, UK. - - 2011
Tetramethylarsonium has for the first time been identified in a commercially grown food product, rice, constituting up to 5.8% of the total arsenic in the rice.
Feldmann Jörg - - 2011
In this opinion paper the toxicokinetic behaviour of arsenosugars is reviewed and compared with that of inorganic arsenic and arsenobetaine. It is concluded that the arsenosugars are similar to inorganic arsenic in terms of metabolite formation and tissue accumulation. As a pragmatic means of generating uniform data sets which adequately ...
Pinho Grasiela Lopes Leães - - 2010
Copepods (Acartia tonsa) were exposed (48 h) to waterborne, diet-borne (non-Cu-equilibrated and Cu-equilibrated food), and waterborne plus diet-borne Cu in either the absence or the presence of food (diatom Thalassiosira weissflogii). Toxicity tests were run in different salinities (5, 15, and 30 ppt) together with measurements of physicochemical parameters and ...
Tobita Keisuke - - 2010
We synthesized a medium consisting of commercial food supplements (food grade medium) that could be used to cultivate Lactobacillus crispatus KT-11 (KT-11), and investigated the antiallergic effects and acute toxicity of KT-11 cultured in this medium. We found that the growth of KT-11 in the food grade medium was comparable ...
Johnson Matilda O - - 2010
Arsenic is a naturally occurring toxic metal and its presence in food could be a potential risk to the health of both humans and animals. Prolonged ingestion of arsenic contaminated water may result in manifestations of toxicity in all systems of the body. Visual Analytics is a multidisciplinary field that ...
Otleş Semih - - 2010
Arsenic is a toxic metalloid of global concern. It usually originates geogenically but can be intensified by human activities such as applications of pesticides and wood preservatives, mining and smelting operations, and coal combustion. Arsenic-contaminated food is a widespread problem worldwide. Data derived from population-based studies, clinical case series, and ...
Argos Maria M Department of Health Studies, The University of Chicago, 5841 S. Maryland Avenue, MC2007, Chicago, IL 60637, - - 2010
The objective of this analysis was to evaluate the effects of dietary B vitamin intakes on creatinine-adjusted urinary total arsenic concentration among individuals participating in the Health Effects of Arsenic Longitudinal Study (HEALS) cohort in Araihazar, Bangladesh. Arsenic exposure is a major public health problem in Bangladesh, where nearly 77 million ...
Newcombe Chris - - 2010
Arsenobetaine has always been referred to as a non-toxic but readily bioavailable compound and the available data would suggest that it is neither metabolised by nor accumulated in humans. Here this study investigates the urine of five volunteers on an arsenobetaine exclusive diet for twelve days and shows that arsenobetaine ...
Albermann M E - - 2010
Besides alcohol and drugs of abuse, several popular foods contain potentially toxic substances and cases of intoxication after consumption of these foods attract notice of forensic toxicology. This is also true for the case of a 34-year-old woman who was suspected to have suffered lethal acute intoxication from eating nothing ...
Ruangwises Suthep - - 2010
Ron Phibun District, approximately 800 km south of Bangkok, is the site of tin mines operated almost 100 years ago. As a result of mining activities, arsenic contaminated the soil and groundwater of the district. The specific aim of this study was to estimate the dietary intakes of total and ...
Zhu Xiaoshan - - 2010
Little is known about the potential ecotoxicity of engineered nanoparticles (NPs) to aquatic organisms. To carefully address this issue, we conducted a comprehensive toxicity assessment, including modified acute (72h) and chronic (21d) toxicity tests as well as nTiO(2) accumulation analysis using Daphnia magna as a model organism. We found that ...
Jeon Junho - - 2010
Toxicity changes in copper and diazinon were investigated in the presence of food, clay, and their mixture by using Daphnia magna. In sorption equilibrium experiments, copper was significantly attracted (>34% sorbed) to food, clay, and food-clay mixture due to their negative zeta potential, while diazinon was less sorbed (<11%). In ...
Lance Emilie - - 2010
Accumulation of free microcystins (MCs) in freshwater gastropods has been demonstrated but accumulation of MCs covalently bound to tissues has never been considered so far. Here, we follow the accumulation of total (free and bound) MCs in Lymnaea stagnalis exposed to i) dissolved MC-LR (33 and 100 microg L(-1)) and ...
Cintra-Francischinelli Mariana - - 2010
Myotoxins are abundant components of snake venoms, being a significant public health problem worldwide. Among them, Lys49 phospholipase A(2) homologue myotoxins cause extensive necrosis in skeletal muscle tissue. Their mechanisms of action are still poorly understood, but there is evidence that the C-terminal region is involved in membrane damage leading ...
Thessen A E - - 2010
Despite high abundances of toxic Pseudo-nitzschia spp. over Louisiana oyster beds (Crassostrea virginica; eastern oyster) there have been no documented cases of amnesic shellfish poisoning (ASP) in the state. Two possible explanations are that oysters do not readily feed on long pointed chains of Pseudo-nitzschia cells or they discriminate against ...
Signes-Pastor Antonio J - - 2009
Rice has been demonstrated to be one of the major contributors to inorganic arsenic (i-As) intake in humans. However, little is known about rice products as additional source of i-As exposure. In this study, misos, syrups and amazake (a fermented sweet rice drink) produced from rice, barley and millet were ...
Manar Rachid - - 2009
Acute and chronic toxicity of high-grade chlordane (98%) and bioaccumulation were investigated in Daphnia magna at water soluble concentrations obtained without cosolvent. The measured effective concentrations immobilizing 50% of the microcrustacea (95% confidence interval) were 22.6 (19.7-26.1) microg/L at 24 h and 13.4 (11.3-15.8) microg/L at 48 h. This indicated ...
Ogimoto Mami - - 2009
Pollution levels of toxic heavy metals (Pb, Cd, Hg) and arsenic in existing food additives used as food colors (40 samples of 15 kinds) were investigated. Heavy metals were detected in 8 samples; Pb in 1 sample (2.8 microg/g), Hg in 8 samples (0.1-3.4 microg/g) and arsenic in 2 samples ...
Zhang Xue - - 2009
The toxic effects of a mixotrophic golden alga (Poterioochromonas sp. strain ZX1) and a cyanobacterium Microcystis aeruginosa grazed by Poterioochromonas to a cladoceran were investigated through life history experiments using Daphnia magna. Poterioochromonas cultured in two ways (fed M. aeruginosa in an inorganic medium or grown in an organic medium) ...
Li N - - 2009
A method was developed for the determination of total arsenic in foods using flow injection on-line sorption coupled with hydride generation atomic fluorescence spectrometry (HG-AFS) using a cigarette filter as the sorbent material. After reducing As(V) to As(III) by using L-cysteine, the determination of total arsenic was achieved through on-line ...
Baeyens Willy - - 2009
Total and toxic (sum of As(III), As(V), monomethylarsenic (MMA), and dimethylarsenic (DMA)) As concentrations were assessed in 19 respectively 4 different fish and shellfish species from the North Sea. Following results were obtained: (i) for fish an average total As concentration of 12.8 microg/g ww and a P90 value of ...
Ioriatti Claudio - - 2009
BACKGROUND: Emamectin benzoate is a novel macrocyclic lactone insecticide derived from naturally occurring avermectin molecules isolated by fermentation from the soil microorganism Streptomyces avermitilis Kim & Goodfellow. The present study aims to evaluate the toxicity of emamectin benzoate to codling moth, Cydia pomonella (L.), and oriental fruit moth, C. molesta ...
Sharma Virender K - - 2009
This paper reviews the current knowledge on the toxicity, speciation and biogeochemistry of arsenic in aquatic environmental systems. The toxicity of arsenic is highly dependent on the chemical speciation. The effects of pH, E(h), adsorbing surfaces, biological mediation, organic matter, and key inorganic substances such as sulfide and phosphate combine ...
Hau Anthony Kai-ching - - 2009
The toxicity of melamine caught the attention of physicians as a result of a recent spate of renal injury after exposure to melamine-tainted milk in China. Melamine is an organic nitrogenous compound used in the production of plastics, dyes, fertilizers, and fabrics. In the current incident, melamine was added to ...
Stipanovic Robert D - - 2009
Gossypol occurs naturally in the seed, foliage, and roots of the cotton plant ( Gossypium ) as atropisomers due to restricted rotation around the binaphthyl bond. The atropisomers differ in their biological activities. (-)-(R)-Gossypol is more toxic and exhibits significantly greater anticancer activity than the (+)-(S)-atropisomer. Most commercial Upland ( ...
Angarano Maj-Britt - - 2009
Macrofouling by zebra mussels (Dreissena polymorpha) has serious environmental, economic and legal consequences for freshwater shipping and raw water facilities. Current antifouling technologies, such as organometallics or aggressive oxidisers, have negative environmental impacts limiting their application. As part of an effort to discover antifoulants with a reduced environmental footprint, the ...
Wang Lumei - - 2009
The acute and chronic toxicity of monocrotophos (MCP), the binary joint toxicity of MCP and bifenthrin (BF), and sodium dodecyl benzene sulfonate (SDBS) to Daphnia magna (D. magna) was evaluated. The 24 h-median effective concentration (24 h-EC(50)) and 48 h-median lethal concentration (48 h-LC(50)) of MCP towards D. magna were ...
Taggart M A - - 2009
Arsenic is known to accumulate with iron plaque on macrophyte roots. Three to four years after the Aznalcóllar mine spill (Spain), residual arsenic contamination left in seasonal wetland habitats has been identified in this form by scanning electron microscopy. Total digestion has determined arsenic concentrations in thoroughly washed 'root+plaque' material ...
Liao Chung-Min - - 2008
Arsenic is a potent human carcinogen of skin, lung, and urinary bladder. Freshwater clam Corbicula fluminea is a commercially important native species in Taiwan. C. fluminea is also a suitable biomonitoring test organism. Little is known, however, about the actual effects of arsenic on C. fluminea. The objectives of this ...
Di Girolamo Francesco - - 2009
Aniline and nitrobenzene (NB) are widely used industrial chemicals. Early effects of aniline toxicity include methemoglobin formation and damage to erythrocytes (Jenkins, F.P., 1972. The no-effect dose of anilne in human subjects and a comparison of aniline toxicity in man and rat. Food Cosmet. Toxicol. 10, 671-679; Bus, J.S., Popp, ...
Losso Chiara - - 2009
Porewater plays an important role in sediment toxicity assessment using bioassays, but the most reliable extracting method and the potential contribution of confounding factors to the real toxicity need to be studied. The applicability of bioassays with the early life stages of Paracentrotus lividus, Mytilus galloprovincialis and Crassostrea gigas on ...
Tavares Renata S - - 2009
Parabens are widely used as preservatives in many foods, cosmetics, toiletries, and pharmaceuticals due to their relatively low toxicity profile and to a long history of safe use. Parabens are alkyl esters of p-hydroxybenzoic acid and typically include methylparaben, ethylparaben, propylparaben, butylparaben, isobutylparaben, isopropylparaben and benzylparaben. These compounds are known ...
Signes-Pastor A J - - 2008
Arsenic (As) species were quantified by HPLC-HG-AFS in water and vegetables from a rural area of West Bengal (India). Inorganic species predominated in vegetables (including rice) and drinking water; in fact, inorganic arsenic (i-As) represented more than 80% of the total arsenic (t-As) content. To evaluate i-As intake in an ...
Pokhrel D - - 2009
A review of published information on the arsenic contamination of groundwater in the Terai regions of Nepal showed that the source was mainly geogenic due to the dissolution of the arsenic-bearing minerals. Clinical observations of patients in the arsenic affected districts revealed chronic arsenic poisoning from drinking water. Half a ...
Heck Julia E - - 2009
In Bangladesh, millions of people are exposed to arsenic in drinking water; arsenic is associated with increased risk of cancer. Once ingested, arsenic is metabolized via methylation and excreted in urine. Knowledge about nutritional factors affecting individual variation in methylation is limited. The purpose of this study was to examine ...
Franz Stephanie - - 2008
Differential sensitivities of microalgae to triclosan have been reported, which may have significant implications for environmental risk assessment of this widely used biocide. Therefore, the aim of this study was to derive a mechanistic understanding of varying microalgal sensitivity to this substance. The toxicity of triclosan was evaluated using microalgal ...
Aggarwal Manoj - - 2008
The metalloid arsenic and the chlorinated insecticide endosulfan are common environmental contaminants. Humans, animals, and birds are exposed to these chemicals through water and food. Although health effects due to either arsenic or endosulfan exposure are documented, the toxicological impact of co-exposure to these environmental pollutants is unpredictable and unknown. ...
Celano Giuseppe - - 2008
Large quantities of environmentally toxic olive mill waste waters (OMWW) result from olive oil production worldwide. A synthetic water-soluble meso-tetra(2,6-dichloro-3-sulfonatophenyl)porphyrinate of iron(III) chloride (FePha) was used as biomimetic catalystto oxidatively couple toxic phenols in OMWW fractions obtained by micro-, ultra-, and nanofiltration, and reverse osmosis. The occurrence of oxidative coupling ...
Tiede Karen - - 2008
Nanotechnology is developing rapidly and, in the future, it is expected that increasingly more products will contain some sort of nanomaterial. However, to date, little is known about the occurrence, fate and toxicity of nanoparticles. The limitations in our knowledge are partly due to the lack of methodology for the ...
Masoudi, Mohammad
Arsenic is a natural metallic element found in low concentrations in virtually every part of the environment, including waters and foods. The ingestion of arsenic by humans can cause a variety of disorders. Glutathione S-transferase omega (GSTO) is a member of phase II xenobiotic metabolizing enzymes. GSTO2 (a member of ...
Uygur Fatih - - 2008
Shooting range injuries are generally caused by ballistic accidents, and so far no burn disaster has been reported. In this article we reported a disaster caused by a gunpowder explosion in an indoor shooting range area in Istanbul, Turkey. Fourteen injured people were evacuated from the scene. Our burn center ...
Scott-Fordsmand J J - - 2008
Nanotechnology is playing an increasing role in the society, but very little is known about the environmental toxicity of nanotechnological products. Few previous studies have been published with regard to the effect of nanoparticles on soil organisms. The present paper deals with the toxicity of carbon double-walled nanotubes (DWNT) and ...
Gao W - - 2008
A petroleum refinery secondary effluent was treated using two freezing techniques--spray freezing and unidirectional downward freezing (UDF). The freezing processes were effective to remove toxicity and total organic carbon (TOC)- and chemical oxygen demand (COD)-causing materials in the effluent. Agitation of the liquid during UDF significantly improved the impurity separation ...
Singh Nrashant - - 2008
Arsenic contamination in groundwater is global human health hazard. There is no effective remedial action of chronic arsenicosis, however, a well-nourished diet can modulate the onset of adverse health effects and the delayed effect of arsenic in drinking water. In the present work, genotoxic effects induced by arsenic through parenteral ...
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