Archive for the ‘researches 4’ Category
Sunday, March 16th, 2008
Flavones and flavonols exert cytotoxic effects on a human oesophageal adenocarcinoma cell line (OE33) by causing G2/M arrest and inducing apoptosis.
Dietary flavonoids have been shown to exert specific cytotoxicity towards some cancer cells, but the precise molecular mechanisms are still not completely understood. In our ...
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Sunday, March 16th, 2008
The contribution of job characteristics to socioeconomic inequalities in incidence of myocardial infarction.
The current study estimated the contribution of job characteristics to socioeconomic inequalities in incidence of myocardial infarction (MI) during a 12-year follow-up period. Data were from the working population (aged 25-64 years) in ...
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Sunday, March 16th, 2008
Human health risk assessments for three neuropharmaceutical compounds in surface waters.
Enhanced sensitivity of analytical chemistry methods has enabled the detection of low-levels of pharmaceuticals in the environment, resulting in questions about the safety of surface waters used for drinking supplies. Human health risk assessments were ...
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Sunday, March 16th, 2008
A directional passive air sampler for monitoring polycyclic aromatic hydrocarbons (PAHs) in air mass.
A passive air sampler was developed for collecting polycyclic aromatic hydrocarbons (PAHs) in air mass from various directions. The airflow velocity within the sampler was assessed for its responses to ambient wind ...
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Sunday, March 16th, 2008
Development of good modelling practice for physiologically based pharmacokinetic models for use in risk assessment: The first steps.
The increasing use of tissue dosimetry estimated using pharmacokinetic models in chemical risk assessments in various jurisdictions necessitates the development of internationally recognized good modelling practice (GMP). These ...
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Sunday, March 16th, 2008
Nitrogen dynamics of a mountain forest on dolomitic limestone - A scenario-based risk assessment.
The dominant nitrogen (N) fluxes were simulated in a mountain forest ecosystem on dolomitic bedrock in the Austrian Alps. Based on an existing small-scale climate model the simulation encompassed the present situation ...
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Sunday, March 16th, 2008
Protection of ash (Fraxinus excelsior) trees from ozone injury by ethylenediurea (EDU): Roles of biochemical changes and decreased stomatal conductance in enhancement of growth.
Treatments with ethylenediurea (EDU) protect plants from ozone foliar injury, but the processes underlying this protection are poorly understood. Adult ash trees ...
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Sunday, March 16th, 2008
To feed or not to feed early in acute pancreatitis: Still depend on severity?
Petrov MS.
Nizhny Novgorod State Medical Academy, Post Box 568, Nizhny Novgorod, Russia.
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Sunday, March 16th, 2008
Uptake of selected PAHs from contaminated soils by rice seedlings (Oryza sativa) and influence of rhizosphere on PAH distribution.
The uptake of selected polycyclic aromatic hydrocarbons (PAHs) by rice (Oryza sativa) seedlings from spiked aged soils was investigated. When applied to soils aged for 4 months, ...
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Sunday, March 16th, 2008
Forward genetic analysis of TLR-signaling pathways: An evaluation.
Forward genetic approaches have contributed to our understanding of how the host senses infectious agents such as bacteria, viruses and fungi. Beginning with the initial discovery of Toll-like receptors (TLRs) as primary sensors involved in the recognition of ...
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Sunday, March 16th, 2008
Combination therapy for chronic hepatitis B: Ready for prime time?
Jacobson IM.
Division of Gastroenterology and Hepatology, Weill Medical College of Cornell University, New York Presbyterian Hospital, 525 East 68th Street, New York, NY 100765, USA.
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Sunday, March 16th, 2008
Impact of hepatitis B virus rtA181V/T mutants on hepatitis B treatment failure.
BACKGROUND/AIMS: Recent clinical observations reported the occurrence of amino acid substitutions at position 181 of the HBV polymerase, associated with a viral breakthrough under lamivudine or adefovir therapy. In this study, we characterized the ...
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Sunday, March 16th, 2008
Are HIV-infected patients candidates for liver transplantation?
Samuel D, Weber R, Stock P, Duclos-Vallée JC, Terrault N.
INSERM, U785, Villejuif F-94800, France; Université Paris-Sud, Faculté de Médecine, Orsay F-91400, France; AP-HP Hôpital Paul Brousse, Villejuif F-94800, France.
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Sunday, March 16th, 2008
Tenth Forum on Liver Transplantation Are HIV-infected patients candidates for liver transplantation?
Clavien PA.
Swiss HPB (Hepato-Pancreato-Biliary) Center, Department of Surgery, University Hospital Zürich, Raemistrasse 100, CH-8091 Zürich, Switzerland.
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Sunday, March 16th, 2008
Reversible inactivation of cytochrome P450 by alkaline earth metal ions: Auxiliary metal ion induced conformation change and formation of inactive P420 species in CYP101.
The effects of the divalent alkaline-earth metal ions (Ca(2+) and Mg(2+)) on the substrate binding affinity, spin-state transition at the heme active ...
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Sunday, March 16th, 2008
Auditory processing indexed by stimulus-induced alpha desynchronization in children.
By means of magnetoencephalography (MEG), we investigated event-related synchronization and desynchronization (ERS/ERD) in auditory cortex activity, recorded from twelve children aged four to six years, while they passively listened to a violin tone and a noise-burst stimulus. ...
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Sunday, March 16th, 2008
Impairment of ascorbic acid\'s anti-oxidant properties in confined media: Inter and intramolecular reactions with air and vanadate at acidic pH.
The anti-oxidant properties of l-ascorbic acid were investigated in the confined medium produced by a sodium bis(2-ethylhexyl)sulfosuccinate (aerosol-OT, AOT) self-assembled reverse micelle. Using (1)H-(1)H NOESY (proton-proton ...
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Sunday, March 16th, 2008
Overexpression of CEACAM6 in borderline and invasive mucinous ovarian neoplasms.
OBJECTIVE: Identifying markers specific for mucinous ovarian neoplasms (MON) is important for cancer diagnosis and surveillance, and will help improve our general understanding of the pathobiology of these tumors. CEACAM6 overexpression appears to be an early ...
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Sunday, March 16th, 2008
Effect of covalent links on the structure, spectra, and redox properties of myeloperoxidase - A density functional study.
The enzyme myeloperoxidase shows several unusual properties compared to other peroxidases, e.g. a red-shifted absorption spectrum and a peroxidase activity towards chloride. It has been suggested that this ...
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Sunday, March 16th, 2008
Biodegradation of mono-alkyl phthalate esters in natural sediments.
Mono-alkyl phthalate esters (MPEs) are primary metabolites of di-alkyl phthalate esters (DPEs), a family of industrial chemicals widely used in the production of soft polyvinyl chloride and a large range of other products. To better understand the long ...
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Sunday, March 16th, 2008
Biofiltration of trimethylamine, dimethylamine, and methylamine by immobilized Paracoccus sp. CP2 and Arthrobacter sp. CP1.
A biofilter using granular activated carbon with immobilized Paracoccus sp. CP2 was applied to the elimination of 10-250ppm of trimethylamine (TMA), dimethylamine (DMA), and methylamine (MA). The results indicated that the ...
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Sunday, March 16th, 2008
Effect of Al(III) speciation on coagulation of highly turbid water.
In Taiwan, the turbidity of raw water for fresh water treatments can sometimes reach as high as 40000 NTU due to intensive rainfall, especially in typhoon seasons. In response, water works often apply large quantities of ...
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Sunday, March 16th, 2008
Microbial reduction of nitrate in the presence of nanoscale zero-valent iron.
Microbial reduction of nitrate in the presence of nanoscale zero-valent iron (NZVI) was evaluated to assess the feasibility of employing NZVI in the biological nitrate treatment. Nitrate was completely reduced within 3d in a nanoscale ...
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Sunday, March 16th, 2008
In situ assay with the midge Kiefferulus calligaster for contamination evaluation in aquatic agro-systems in central Thailand.
The aims of this study were to verify the suitability of in situ tests using the tropical midge Kiefferulus calligaster and to evaluate the most sensitive endpoint for the ...
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Sunday, March 16th, 2008
The influence of chromatic context on binocular color rivalry: Perception and neural representation.
The predominance of rivalrous targets is affected by surrounding context when stimuli rival in orientation, motion or color. This study investigated the influence of chromatic context on binocular color rivalry. The predominance of ...
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