Appendix 2-5: Rejected ecotox bibliography for Chlorpyrifos



Download 6.25 Mb.
Page96/151
Date conversion04.02.2017
Size6.25 Mb.
1   ...   92   93   94   95   96   97   98   99   ...   151
it can protect rats against many OP exposures. In the current paper, we described a preparation of active recombinant human PON1 (rHuPON1) by engineering an Escherichia coil expression system. Recombinant HuPON1 was purified by Ni-NTA affinity chromatography followed by DEAE sepharose fast-flow chromatography. After purification, rHuPON1 was chemically modified with polyethyleneglycol (PEG)-20K. Recombinant HuPON1 exhibited a mean residence time (MRT) of 8.9 h, which was threefold shorter than that of native HuPON1 in rats. However, rHuPON1 chemically modified with PEG-20K displayed an MRT of 19.5 h, suggesting that PEG modification can prolong the circulatory stability of rHuPON1. PEG-rHuPON1 had a catalytic efficiency sufficient in protecting rats against OP poisoning, as measured by acetylcholinesterase activity in tissues and signs after poisoning. Crown Copyright (C) 2012 Published by Elsevier Ireland Ltd. All rights reserved.
Keywords: Recombinant human paraoxonase-1, Polyethylene glycosylation, Escherichia
ISI Document Delivery No.: 936XP

785. Li, Y.; Yu, X.; Wang, Z., and Wang, H. Ethanol Poisoning Together With Organophosphate Exposure: a Difficult Clinical Diagnosis Because of Physician Anchoring.


Rec #: 79389
Keywords: HUMAN HEALTH
Notes: Chemical of Concern: CPY
Abstract: ABSTRACT: AIMS: Organophosphorus pesticide poisoning occurs frequently in China and can be diagnosed easily based on the history of ingestion and the cholinergic toxic syndrome. Yet, when combined with other toxins, organophosphorus poisoning may appear different.
ABSTRACT: METHODS: Here, we present a case of acute ethanol poisoning together with a dermal organophosphorus exposure.
ABSTRACT: RESULTS: Based on the history and a misinterpretation of the physical examination, the patient was treated as an organophosphorus poisoning. Ultimately, serum analysis helped clarify the diagnosis.
ABSTRACT: CONCLUSIONS: Toxicologist should be aware of the error known as anchoring and take appropriate precautions to limit its occurrence.
MESH HEADINGS: Adult
MESH HEADINGS: Chlorpyrifos/poisoning
MESH HEADINGS: Diagnosis, Differential
MESH HEADINGS: Environmental Exposure/adverse effects
MESH HEADINGS: Ethanol/*poisoning
MESH HEADINGS: Humans
MESH HEADINGS: Male
MESH HEADINGS: *Organophosphate Poisoning
MESH HEADINGS: Skin Diseases/chemically induced/diagnosis eng

786. Li, Y. C.; Jiao, B. N.; Zhao, Q. Y.; Wang, C. Q.; Gong, Y.; Zhang, Y. H., and Chen, W. J. Effect of commercial processing on pesticide residues in orange products. 2012; 234, (3): 449-456.


Rec #: 63979
Keywords: SURVEY
Notes: Chemical of Concern: CPY
Abstract: Abstract: The effect of commercial processing of orange juice on pesticide residues was investigated, and the processing factors of all orange products and by-products were also determined. The pesticide residues were strengthened using field trials and detected using Ultra-performance Liquid Chromatography-tandem Mass Spectrometry (UPLC-MS/ MS). The results showed that the pesticide residues were mainly distributed in orange peels, the reduction of residue levels ranged from 43.6 to 85.4% during washing process. One percent to 4.5% of initial residues contained in the squeezed juice, 7-94.7% of the total relative residues were distributed in pomace. Filtrating could further reduce all the residue levels, ranging from 96.0-99.4% relative to unwashed whole fruits. After sterilization, there was only 0.5-3.1% of the residues contained in Not from Concentrate juice (NFC juice). 0.2-7.1% of the total relative residues was contained in concentrated juice, comparing with the filtrated juice; however, the concentration of cypermethrin and prochloraz was decreased, but the other 3 pesticides were increased. The residue levels of imidacloprid and carbendazim in orange oil were reduced but abamectin, prochloraz, and cypermethrin were concentrated, and the concentrated factor was 28.214, 5.232, and 5.621, respectively.
Keywords: Pesticide residues, Orange products, Commercial processing
ISI Document Delivery No.: 911GC

787. Liang, Bin; Yang, Chengli; Gong, Mingbo; Zhao, Yanfu; Zhang, Jun; Zhu, Changxiong; Jiang, Jiandong; Li, Shunpeng, and Liang, Bin. Adsorption and Degradation of Triazophos, Chlorpyrifos and Their Main Hydrolytic Metabolites in Paddy Soil From Chaohu Lake, China. 2011 Sep; 92, (9): 2229-2234.


Rec #: 39449
Keywords: FATE
Notes: Chemical of Concern: CPY
Abstract: Abstract: Triazophos and chlorpyrifos are organophosphorus pesticides (OPs), and their primary hydrolytic metabolites are 1-phenyl-3-hydroxy-1,2,4-triazole (BZC) and 3,5,6-trichloro-2-pyridinol (TCP). In this study, the adsorption and degradation of triazophos, chlorpyrifos, BZC and TCP were investigated in paddy soil from Chaohu Lake, China. Adsorption tests demonstrated that the adsorption of these compounds to soils could be described by the Freundlich equation. Moreover, chlorpyrifos displayed the highest affinity for adsorption, followed by triazophos, BZC and TCP. Degradation of these compounds in non-sterile soil followed first-order exponential decay kinetics, and the half-life (t 1/2) of these contaminants ranged from 8.40 to 44.34 d. Sterilization of soil decreased the degradation rate, indicating that microorganisms played a significant role in the degradation of these compounds. The values of t 1/2 and K oc were fitted to obtain models that could predict the leaching potential of the contaminants from soil. Compared to their parent compounds, BZC and TCP showed high potential for leaching into groundwater. The inoculation of OPs-degrading bacterium (Diaphorobacter sp. GS-1) removed 95.38%, 100% and 100% of triazophos, chlorpyrifos and BZC in paddy soil after 21 d, respectively. The pollution risk of triazophos, chlorpyrifos and BZC could be greatly decreased by inoculating soil with Diaphorobacter sp. GS-1, which decreases the t 1/2 of the contaminants.
Keywords: China, People's Rep., Anhui Prov., Chaohu L.
Keywords: Leaching
Keywords: Degradation
Keywords: Metabolites
Keywords: ENA 02:Toxicology & Environmental Safety
Keywords: Environmental Studies
Keywords: Chlorpyrifos
Keywords: Soil
Keywords: Lakes
Keywords: Rice fields
Keywords: Pesticides
Keywords: Adsorption
Keywords: Environment Abstracts; Pollution Abstracts; Sustainability Science Abstracts; Ecology Abstracts
Keywords: China, People's Rep.
Date revised - 2011-10-01
Language of summary - English
Location - China, People's Rep., Anhui Prov., Chaohu L.; China, People's Rep.
Pages - 2229-2234
ProQuest ID - 886340611
SubjectsTermNotLitGenreText - Soil; Chlorpyrifos; Lakes; Leaching; Rice fields; Degradation; Pesticides; Adsorption; Metabolites; China, People's Rep., Anhui Prov., Chaohu L.; China, People's Rep.
Last updated - 2012-08-02
Corporate institution author - Liang, Bin; Yang, Chengli; Gong, Mingbo; Zhao, Yanfu; Zhang, Jun; Zhu, Changxiong; Jiang, Jiandong; Li, Shunpeng
DOI - OB-9275dab2-43d1-4900-aa48csaobj201; 15161155; 0301-4797 English

788. Liang, Di Wu and Zhu, Hui Zhong. Research on Scanning Monolithic Qcm Sensor Array and Related Measurement System. 2008.


Rec #: 51869
Keywords: CHEM METHODS
Notes: Chemical of Concern: CPY
Abstract: Abstract: This thesis investigated a monolithic QCM sensor array and related scanning measurement system. The QCM array improves the reliability of differential measurement by integrating QCM arrays on one single quartz plate. With the design to contact with liquid on one side, the QCM array could work steadily in liquid phase. The scanning measurement system together with the QCM sensor array could be used as a new sensor platform for the chemical and biologic detection in liquid. For the package of the monolithic QCM sensor array, a plastic double in-line package structure with ceramic substrate inside is designed. A small pool to accept liquid when measuring is designed with plastic packaging material as the wall and one side the QCM array plate as the bottom. The other side of the QCM array is sealed in a cavity on the ceramic substrate. The packaged QCM sensor arrays device were tested with Network Analyzer and shown with good performed. A time-sharing scanning stimuli measurement system is designed to work together with the monolithic QCM sensor array. The oscillator circuit is designed based on a single high speed comparator IC Max-902. The ARM core MCU LPC2132 is used to work as the central process controller of the system. The measurement system is composed by multi-channel gating scanning of QCM array units and peripheral devices. Based on CPLD device XC9572, an even precision frequency measurement module is developed. A PC-based data acquisition and recording system was also developed to do the observation and post-analysis of experimental process. Experiments show that the measurement system works highly precise on frequency measurement. The error during measuring QCM Array unit with 10MHz fundamental frequency is less than 1 Hz. Based on molecular imprinting technology, the sensitive film detection experiments on the pesticide Chlopyrifos in gas/liquid is carried out. The experiments get very positive results and testify the validity of system. The work of the thesis is helpful for further research on the QCM sensor array and measurement system as well as a valuable research foundation.
Keywords: 0548:Mechanical engineering
Keywords: Applied sciences
Keywords: (UMI)AAIH404760
2008
0548: Mechanical engineering
Applied sciences
2012-07-19
Chinese
n/a
Copyright ProQuest, UMI Dissertations Publishing 2008
70607522
169031
(UMI)AAIH404760
1026937692
H404760
Liang, Di Wu
2715166151 ZH

789. Liang, J.; Zhao, Z. Y.; Li, H. F., and Guo, B. Y. Residual Degradation Behaviors of Chlorpyrifos in Apple. College of Horticulture, Northwest A&F University, Yangling 712100, China,//: SOIL; 2008; 27, (6): 2461-2466(CHI) (ENG ABS).


Rec #: 2690
Keywords: NON-ENGLISH
Call Number: NON-ENGLISH (CPY)
Notes: Chemical of Concern: CPY

790. Liang, Y.; Wang, W.; Shen, Y.; Liu, Y., and Liu, X. J. Dynamics and Residues of Chlorpyrifos and Dichlorvos in Cucumber Grown in Greenhouse. SOIL; 2012; 26, (2): 231-234.


Rec #: 2760
Keywords: MIXTURE
Call Number: NO MIXTURE (CPY,DDVP)
Notes: Chemical of Concern: CPY,DDVP

791. Liang, Y.; Wang, W.; Shen, Y.; Liu, Y., and Liu, X. J. Effects of home preparation on organophosphorus pesticide residues in raw cucumber. 2012 Aug 1-; 133, (3): 636-640.


Rec #: 3810
Keywords: FOOD
Notes: Chemical of Concern: CPY
Abstract: The effects of washing with tap water and different detergent solutions, storage at different temperatures and ultrasonic cleaning on organophosphorus pesticide (trichlorfon, dimethoate, dichlorvos, fenitrothion, and chlorpyrifos) residue levels in raw cucumber was investigated. Analysis was carried out by liquid chromatographyÇôtandem mass spectrometry. Washing with detergent solutions proved more effective than tap water. The organophosphorus pesticides reduced from 31.1% to 98.8% after washing with detergent solutions for 20 min. Among detergent solutions, 5% sodium carbonate solution caused the greatest loss in trichlorfon and dimethoate, and 5% sodium bicarbonate solution caused the greatest loss in dichlorvos, fenitrothion and chlorpyrifos. Storage at 4 -_C for 48 h caused pesticides reduction by 60.9Çô90.2%. Ultrasonic cleaning for 20 min lowered pesticides by 49.8Çô84.4%. The data indicated that home preparation is effective for the reduction of organophosphorus pesticide residues in raw cucumber and it is useful for reducing the dietary exposure. Home preparation/ Organophosphorus pesticide/ Cucumber

792. Liao, C.; Liu, F., and Kannan, K. Bisphenol S, a New Bisphenol Analogue, in Paper Products and Currency Bills and Its Association With Bisphenol a Residues.


Rec #: 50059
Keywords: HUMAN HEALTH
Notes: Chemical of Concern: CPY
Abstract: ABSTRACT: As the evidence of the toxic effects of bisphenol A (BPA) grows, its application in commercial products is gradually being replaced with other related compounds, such as bisphenol S (BPS). Nevertheless, very little is known about the occurrence of BPS in the environment. In this study, BPS was analyzed in 16 types of paper and paper products (n = 268), including thermal receipts, paper currencies, flyers, magazines, newspapers, food contact papers, airplane luggage tags, printing paper, kitchen rolls (i.e., paper towels), and toilet paper. All thermal receipt paper samples (n = 111) contained BPS at concentrations ranging from 0.0000138 to 22.0 mg/g (geometric mean: 0.181 mg/g). The overall mean concentrations of BPS in thermal receipt papers were similar to the concentrations reported earlier for BPA in the same set of samples. A significant negative correlation existed between BPS and BPA concentrations in thermal receipt paper samples (r = -0.55, p < 0.0001). BPS was detected in 87% of currency bill samples (n = 52) from 21 countries, at concentrations ranging from below the limit of quantification (LOQ) to 6.26 μg/g (geometric mean: 0.029 μg/g). BPS also was found in 14 other paper product types (n = 105), at concentrations ranging from < LOQ to 8.38 μg/g (geometric mean: 0.0036 μg/g; detection rate: 52%). The estimated daily intake (EDI) of BPS, through dermal absorption via handling of papers and currency bills, was estimated on the basis of concentrations and frequencies of the handling of papers by humans. The median and 95th percentile EDI values, respectively, were 4.18 and 11.0 ng/kg body weight (bw)/day for the general population and 312 and 821 ng/kg bw/day for occupationally exposed individuals. Among the paper types analyzed, thermal receipt papers were found to be the major sources of human exposure to BPS (>88%). To our knowledge, this is the first report on the occurrence of BPS in paper products and currency bills.
MESH HEADINGS: Chromatography, High Pressure Liquid
MESH HEADINGS: Limit of Detection
MESH HEADINGS: *Paper
MESH HEADINGS: Phenols/*analysis/*chemistry
MESH HEADINGS: Tandem Mass Spectrometry eng

793. Liao, H. T.; Hsieh, C. J.; Chiang, S. Y.; Lin, M. H.; Chen, P. C., and Wu, K. Y. Simultaneous analysis of chlorpyrifos and cypermethrin in cord blood plasma by online solid-phase extraction coupled with liquid chromatography-heated electrospray ionization tandem mass spectrometry. 2011; 879, (21): 1961-1966.


Rec #: 64029
Keywords: HUMAN HEALTH
Notes: Chemical of Concern: CPY
Abstract: Abstract: Chlorpyrifos and cypermethrin are the most used insecticides in Taiwan. Exposure to both pesticides has been associated with reproductive and developmental health effects in humans and animals. This study describes an online solid-phase extraction coupled with liquid chromatography-heated electrospray ionization tandem mass spectrometry (online SPE-LC/HESI/MS/MS) method to analyze chlorpyrifos and cypermethrin in cord blood of pregnant women. Calibration curves showed good linearity (r(2) > 0.998) for both pesticides within the range of 0.1-100 ppb. Limits of detection (LODs) were 0.01 and 0.05 ppb and recoveries in cord blood were 97.2 +/- 4.8% and 93.5 +/- 9.5% for chlorpyrifos and cypermethrin respectively. After analysis of 396 samples, the mean concentrations of chlorpyrifos and cypermethrin were 0.38 and 1.08 ppb respectively. These results demonstrate that LC/HESI/MS/MS is effective for the simultaneous analysis of chlorpyrifos and cypermethrin in cord blood with excellent sensitivity and specificity and may also be effective for high throughput assay in future epidemiology studies. (C) 2011 Elsevier B.V. All rights reserved.
Keywords: Pesticide, Chlorpyrifos, Cypermethrin, Organophosphate, Pyrethroid, Cord
ISI Document Delivery No.: 791LB

794. Lieberman, M. T. and Alexander, M. Effects of Pesticides on Decomposition of Organic Matter and Nitrification in Sewage. 1981; 26, 554-560.


Rec #: 1070
Keywords: FATE
Call Number: NO FATE (24D,24DXY,CBL,CPY,DDVP,DZ,MLN,PPX)
Notes: Chemical of Concern: 24D,24DXY,BDC,CBL,CPY,DDVP,DZ,MLN,PPX

795. Lin, Jing; Chang, Youhong; Yan, Zhimei, and Li, Xiaogang. Effects of bagging on the quality of pear fruit and pesticide residues. 2008(772): 315-318.


Rec #: 53449
Keywords: HUMAN HEALTH
Notes: Chemical of Concern: CPY
Abstract: Keywords: fruit bagging
Paper presented at the International Symposium on Enhancing Economic and Environmental Sustainability of Fruit Production in a Global Economy, held August 13-19, 2006, Seoul, Korea. Includes references 1022986987

796. Ling, Yun; Wang, Han; Yong, Wei; Zhang, Feng; Sun, Li; Yang, Min-Li; Wu, Yong-Ning; Chu, Xiao-Gang, and Ling, Yun. The Effects of Washing and Cooking on Chlorpyrifos and Its Toxic Metabolites in Vegetables. 2011 Jan; 22, (1,): 54-58.


Rec #: 40089
Keywords: FOOD
Notes: Chemical of Concern: CPY
Abstract: Abstract: The effect of household processing on removal of chlorpyrifos residue from vegetables, and the formation of metabolite during processing were studied. Many factors: washing solutions, pH value, cooking mode, processing time were investigated. Analysis of chlorpyrifos and its metabolites was carried out by gas chromatography coupled to triple quadrupole mass spectrometry. Hydrolysis of chlorpyrifos affected the removal of residue from leafy vegetable during washing. Cooking on removal of chlorpyrifos residue was more effective than washing. Chlorpyrifos degraded into 3,5,6-trichloro-2-pyridinol during cooking, while chlorpyrifos did not degrade into chlorpyrifos oxon in all experiments.
Keywords: Chlorpyrifos
Keywords: Vegetables
Keywords: Gas chromatography
Keywords: Cooking
Keywords: Metabolites
Keywords: X 24330:Agrochemicals
Keywords: Hydrolysis
Keywords: pH effects
Keywords: Toxicology Abstracts
Keywords: Mass spectroscopy
Date revised - 2012-03-01
Language of summary - English
Pages - 54-58
ProQuest ID - 954587236
SubjectsTermNotLitGenreText - Chlorpyrifos; Vegetables; Gas chromatography; Cooking; Metabolites; Hydrolysis; pH effects; Mass spectroscopy
Last updated - 2012-03-30
British nursing index edition - Food Control [Food Control]. Vol. 22, no. 1,, pp. 54-58. Jan 2011.
Corporate institution author - Ling, Yun; Wang, Han; Yong, Wei; Zhang, Feng; Sun, Li; Yang, Min-Li; Wu, Yong-Ning; Chu, Xiao-Gang
DOI - f9156687-3444-42c7-bb9ecsamfg201; 13997742; 0956-7135 English

797. Lisha, K. P.; Anshup, and Pradeep, T. Enhanced visual detection of pesticides using gold nanoparticles. 2009; 44, (7): 697-705.


Rec #: 64109
Keywords: CHEM METHODS
Notes: Chemical of Concern: CPY
Abstract: Abstract: The presence of parts per billion (ppb) levels of chlorpyrifos (O, O-Diethyl-O-(3,5,6-trichloro-2-pyridyl) phosphorothioate) and malathion (S-1,2-bis(ethoxycarbonyl) ethyl O, O-dimethyl phosphorodithioate), two common pesticides found in the surface waters of developing countries, have been visually detected using gold nanoparticles. Visual detection of the presence of pesticide is possible when the color change occurring by the adsorption of pesticides on gold nanoparticles is enhanced by sodium sulfate. The method presented here is simple and there is no need of sample preparation or preconcentration. The response occurs within seconds and the color change is very clear. The detection is possible if chlorpyrifos and malathion are present up to a concentration of 20 and 100 ppb, respectively. The method shows great potential for on-site pesticide monitoring. The method is also applicable as a qualitative technique for the performance evaluation of various household water filters, which claim pesticide removal.
Keywords: Water, gold nanoparticles, chlorpyrifos, malathion, sodium sulfate
ISI Document Delivery No.: 535VY

798. Liu, C. G.; Yang, B.; Gan, J.; Zhang, Y.; Liang, M.; Shu, X., and Shu, J. N. Heterogeneous reactions of suspended parathion, malathion, and fenthion particles with NO(3) radicals. 2012; 87, (5): 470-476.


Rec #: 64129
Keywords: FATE
Notes: Chemical of Concern: CPY
Abstract: Abstract: Organophosphorus pesticides (OPPs) emit into the atmosphere in both gas and particulate phases via spray drift from treatments and post-application emission, but most of their degradations in the atmosphere are not well known. In this study, the heterogeneous reactions of nitrate (NO(3)) radicals with three typical OPPs (parathion, malathion, and fenthion) absorbed on azelaic acid particles are investigated using an online vacuum ultraviolet photoionization aerosol time-of-flight mass spectrometer (VUV-ATOFMS). The reaction products observed with the VUV-ATOFMS are identified on the basis of GC/MS analysis of the products in the reaction between NO(3) radicals and the coating of the pesticide. Paraoxon is identified as the only product of parathion; malaoxon and bis(1,2-bis-ethoxycarbonylethyl)disulfide as the products of malathion; fenoxon, fenoxon sulfoxide, fenthion sulfoxide, fenoxon sulfone, and fenthion sulfone as the products of fenthion. The degradation rates of parathion, malathion, and fenthion under the experimental conditions are 5.5 x 10(-3), 5.6 x 10(-2), and 3.3 x 10(-2) s(-1), respectively. The pathways of the heterogeneous reactions between the three OPPs and NO(3) radicals are proposed. The experimental results reveal the possible transformations of these OPPs through the oxidation of NO(3) radicals in the atmosphere. (C) 2011 Elsevier Ltd. All rights reserved.
Keywords: Organophosphorus pesticides, Heterogeneous reaction, NO(3) radicals,
ISI Document Delivery No.: 922CJ

799. Liu, G.; Fernandez, A., and Cai, Y. Complexation of Arsenite With Humic Acid in the Presence of Ferric Iron.


Rec #: 50229
Keywords: FATE
Notes: Chemical of Concern: CPY
Abstract: COMMENTS: Cites: Sci Total Environ. 1998 Jan 8;209(1):27-39 (medline /9496662)
COMMENTS: Cites: Science. 2010 May 28;328(5982):1123-7 (medline /20508123)
COMMENTS: Cites: Environ Sci Technol. 2002 Mar 1;36(5):976-81 (medline /11918029)
COMMENTS: Cites: Environ Sci Technol. 2002 Jul 1;36(13):2889-96 (medline /12144264)
COMMENTS: Cites: J Environ Qual. 2002 Jul-Aug;31(4):1115-23 (medline /12175028)
COMMENTS: Cites: Science. 2002 Nov 22;298(5598):1602-6 (medline /12446905)
COMMENTS: Cites: Environ Sci Technol. 2006 Aug 1;40(15):4659-65 (medline /16913121)
COMMENTS: Cites: Environ Sci Technol. 2006 Sep 1;40(17):5380-7 (medline /16999114)
COMMENTS: Cites: Talanta. 2002 Aug 16;58(1):201-35 (medline /18968746)
COMMENTS: Cites: Chemosphere. 2010 Nov;81(7):890-6 (medline /20801484)
COMMENTS: Cites: Environ Sci Technol. 2003 Sep 15;37(18):4182-9 (medline /14524451)
COMMENTS: Cites: Chemosphere. 2004 Sep;56(11):1105-12 (medline /15276723)
COMMENTS: Cites: Environ Sci Technol. 2005 Apr 15;39(8):2537-44 (medline /15884346)
COMMENTS: Cites: J Agric Food Chem. 2005 Nov 2;53(22):8673-8 (medline /16248570)
COMMENTS: Cites: Sci Total Environ. 2006 Feb 1;354(2-3):179-90 (medline /16398994)
COMMENTS: Cites: Environ Geochem Health. 2006 Jun;28(3):197-214 (medline /16607568)
COMMENTS: Cites: J Colloid Interface Sci. 2006 Oct 1;302(1):62-75 (medline /16857207)
COMMENTS: Cites: Environ Sci Technol. 2006 Oct 1;40(19):6015-20 (medline /17051793)
COMMENTS: Cites: Environ Sci Technol. 2008 Apr 15;42(8):2893-8 (medline /18497140)
COMMENTS: Cites: Sci Total Environ. 2008 Nov 15;406(1-2):180-9 (medline /18760447)
COMMENTS: Cites: Environ Sci Technol. 2010 Jun 15;44(12):4479-85 (medline /20433135)
COMMENTS: Cites: Sci Total Environ. 2000 Apr 17;249(1-3):297-312 (medline /10813460)
ABSTRACT: In the presence of iron (Fe), dissolved organic matter (DOM) may bind considerable amounts of arsenic (As), through formation of Fe-bridged As-Fe-DOM complexes and surface complexation of As on DOM-stabilized Fe-colloids (collectively referred to as As-Fe-DOM complexation). However, direct (e.g., chromatographic and spectroscopic) evidence and fundamental kinetic and stability constants have been rarely reported for this As-Fe-DOM complexation. Using a size exclusion chromatography (SEC)-UV-inductively coupled plasma mass spectrometry (ICP-MS) technique, arsenite (As(III))-Fe-DOM complexation was investigated after adding As(III) into the priorly prepared Fe-DOM. A series of evidence, including coelution of As, Fe, and DOM from the SEC column and coretention of As, Fe, and DOM by 3 kDa MWCO centrifugal filtration membrane, demonstrated the occurrence of As(III)-Fe-DOM complexation. The kinetic data of As(III)-Fe-DOM complexation were well described by a pseudofirst order rate equation (R(2) = 0.95), with the rate constant (k') being 0.17 ± 0.04 1/h. Stability of As(III)-Fe-DOM complexation was characterized by apparent stability constant (K(s)) derived from two-site ligand binding model, with log K(s) ranging from 4.4 ± 0.2 to 5.6 ± 0.4. Considering the kinetics (within hours) and stability (similar to typical metal-humates) of As(III)-Fe-DOM complexation, this complexation needs to be included when evaluating As mobility in Fe and DOM rich environments.
MESH HEADINGS: Arsenites/*chemistry
MESH HEADINGS: Environmental Pollutants/*chemistry
MESH HEADINGS: Humic Substances/*analysis
MESH HEADINGS: Iron/*chemistry
MESH HEADINGS: Kinetics
MESH HEADINGS: Models, Chemical eng

800. Liu, L.; Fiorentino, L.; Natarajan, L.; Parker, B. A.; Mills, P. J.; Sadler, G. R.; Dimsdale, J. E.; Rissling, M.; He, F., and Ancoli-Israel, S. Pre-Treatment Symptom Cluster in Breast Cancer Patients Is Associated With Worse Sleep, Fatigue and Depression During Chemotherapy.


Rec #: 50929
Keywords: HUMAN HEALTH
Notes: Chemical of Concern: CPY
Abstract: COMMENTS: Cites: Psychiatry Res. 1989 May;28(2):193-213 (medline /2748771)
COMMENTS: Cites: J Clin Oncol. 2008 Feb 20;26(6):971-82 (medline /18281672)
COMMENTS: Cites: J Psychosom Res. 1998 Jul;45(1):5-13 (medline /9720850)
COMMENTS: Cites: J Adv Nurs. 2001 Mar;33(5):668-76 (medline /11298204)
COMMENTS: Cites: Oncol Nurs Forum. 2001 Apr;28(3):465-70 (medline /11338755)
COMMENTS: Cites: Eur J Cancer Care (Engl). 2001 Dec;10(4):245-55 (medline /11806675)
COMMENTS: Cites: Biol Psychiatry. 2003 Aug 1;54(3):269-82 (medline /12893103)
COMMENTS: Cites: J Natl Cancer Inst. 2003 Aug 6;95(15):1110-7 (medline /12902440)
COMMENTS: Cites: J Pain Symptom Manage. 2004 Jan;27(1):14-23 (medline /14711465)
COMMENTS: Cites: Oncol Nurs Forum. 2004 May;31(3):591-5598 (medline /15146224)
COMMENTS: Cites: J Natl Cancer Inst Monogr. 2004;(32):17-21 (medline /15263036)
COMMENTS: Cites: J Natl Cancer Inst Monogr. 2004;(32):76-8 (medline /15263044)
COMMENTS: Cites: Clin Cancer Res. 2004 Aug 1;10(15):4998-5003 (medline /15297400)
COMMENTS: Cites: Neuroimmunomodulation. 2004;11(5):279-92 (medline /15316238)
COMMENTS: Cites: Clin Cornerstone. 2004;6 Suppl 1D:S15-21 (medline /15675653)
COMMENTS: Cites: Biol Psychol. 2005 Apr;69(1):85-96 (medline /15740827)
COMMENTS: Cites: Clin Cancer Res. 2005 Mar 1;11(5):1757-64 (medline /15755997)
COMMENTS: Cites: Support Care Cancer. 2005 Dec;13(12):1010-7 (medline /15864659)
COMMENTS: Cites: Support Care Cancer. 2006 Mar;14(3):201-9 (medline /16010529)
COMMENTS: Cites: J Clin Oncol. 2005 Sep 1;23(25):6083-96 (medline /16135475)
COMMENTS: Cites: J Pain Symptom Manage. 2006 Jan;31(1):85-95 (medline /16442485)
COMMENTS: Cites: Oncol Nurs Forum. 2006 May;33(3):535-42 (medline /16676010)
COMMENTS: Cites: Oncol Nurs Forum. 2006 Jul;33(4):775-83 (medline /16858459)
COMMENTS: Cites: J Pain Symptom Manage. 2006 Aug;32(2):118-28 (medline /16877179)
COMMENTS: Cites: Palliat Support Care. 2006 Sep;4(3):219-37 (medline /17066964)
COMMENTS: Cites: Sleep. 2006 Nov;29(11):1391-7 (medline /17162985)
COMMENTS: Cites: J Clin Nurs. 2007 Jan;16(1):104-21 (medline /17181672)
COMMENTS: Cites: Cancer Pract. 1998 May-Jun;6(3):143-52 (medline /9652245)
ABSTRACT: OBJECTIVE: The concept of symptom clusters is relatively new in cancer patients' symptom management. This study, which spanned four cycles of chemotherapy, combined three commonly seen pre-treatment symptoms in cancer patients (i.e. sleep disturbances, fatigue and depression) into one symptom cluster, to explore the associations between pre-treatment cluster categories and longitudinal profiles of these same symptoms during chemotherapy.
ABSTRACT: METHODS: This was a prospective study. Seventy-six women with newly diagnosed stage I-III breast cancer, scheduled to receive at least four cycles of adjuvant or neoadjuvant anthracycline-based chemotherapy participated. Data were collected at seven time points before and during treatment. Sleep quality was measured with the Pittsburgh Sleep Quality Index. Fatigue was measured with the Multidimensional Fatigue Symptom Inventory--Short Form. Depressive symptoms were measured with the Center of Epidemiological Studies--Depression. Patients were divided into three groups based on the number of symptoms they experienced before the start of chemotherapy (i.e. no symptoms, 1-2 symptoms or all three symptoms) and a symptom cluster index (SCI) was computed.
ABSTRACT: RESULTS: All women reported worse sleep, more fatigue and more depressive symptoms during treatment compared with baseline (all p's < 0.01); however, those women with a higher SCI (i.e. more symptoms pre-treatment) continued to experience worse symptoms during treatment compared with those who began with fewer symptoms (all p's < 0.01).
ABSTRACT: CONCLUSIONS: A higher clinically relevant-based pre-treatment symptom cluster was associated with more sleep disturbances, greater fatigue and more depressive symptoms during chemotherapy. Specific interventions for these pre-treatment symptoms may improve the frequency and severity of these same symptoms during chemotherapy, when they are most severe and most disruptive to quality of life.
MESH HEADINGS: Adult
MESH HEADINGS: Aged
MESH HEADINGS: Analysis of Variance
MESH HEADINGS: Antineoplastic Combined Chemotherapy Protocols/*adverse effects
MESH HEADINGS: Breast Neoplasms/complications/*drug therapy
MESH HEADINGS: Chemotherapy, Adjuvant
MESH HEADINGS: Depression/etiology/*prevention &
MESH HEADINGS: control
MESH HEADINGS: Fatigue/etiology/*prevention &
MESH HEADINGS: control
MESH HEADINGS: Female
MESH HEADINGS: Humans
MESH HEADINGS: Middle Aged
MESH HEADINGS: Prospective Studies
MESH HEADINGS: Sleep Disorders/etiology/*prevention &
MESH HEADINGS: control eng

801. Liu, Ning; Cui, Hong-you, and Yao, De. Decomposition and oxidation of sodium 3,5,6-trichloropyridin-2-ol in sub- and supercritical water. 2009 Nov; 87, (6): 387-394.


Rec #: 5090
Keywords: FATE
Notes: Chemical of Concern: CPY
Abstract: Sodium 3,5,6-trichloropyridin-2-ol (STCP) is a necessary precursor compound for the production of chlorpyrifos and triclopyr, which are extensively used as pesticide and herbicide, respectively. In the process of STCP production, however, large amount of wastewater containing STCP is discharged, which causes increasingly environmental concerns. Therefore, it is of great significance to develop a rapid and effective method for the disposal of containing STCP contaminants. In this work, the thermal decomposition of STCP in sub- and supercritical water was investigated using a continuous tubular reactor. While STCP was stable below 280 -_C, it could be effectively decomposed at elevated temperature. FT-IR spectra of the decomposition products indicated that the pyridine ring structure in the STCP molecule was stable even at temperatures up to 400 -_C. The decomposition reaction was mainly caused by the substitution of Cl groups in the STCP molecule with OH groups, resulting in polyhydroxylated pyridines as the major decomposition product. Moreover, high pressure favored the substitution reaction. To completely decompose STCP into non-toxic or low toxic compounds, supercritical water oxidation (SCWO) was employed to evaluate the oxidation of STCP using H2O2 as an oxidant. It was found that STCP could be completely oxidized to H2O, CO2 and corresponding inorganic ammonium salts with an oxidation rate of 99%. Sodium 3,5,6-trichloropyridin-2-ol/ Supercritical/ Subcritical/ Oxidation/ Decomposition

802. Liu, Y. H.; Wang, C. M.; Gui, W. J.; Liang, X.; Bi, J. C.; Huang, G. Y., and Zhu, G. N. Effect of Reaction Format on a McAb-Based Heterologous ELISA for the Insecticide Parathion. 2009; 42, (18): 3031-3045.


Rec #: 64179
Keywords: METHODS
Notes: Chemical of Concern: CPY
Abstract: Abstract: Based on the selected monoclonal antibody, the effect of three reaction formats on sensitivity, specificity, and determination ability for real samples were investigated. The results showed the antibody-coated format was the optimal assay for
1   ...   92   93   94   95   96   97   98   99   ...   151


The database is protected by copyright ©dentisty.org 2016
send message

    Main page