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Topic: Adduct

	Glossary: adduct
		In biology, an adduct is a complex that forms when a chemical binds to a biological molecule, such as DNA or protein.
		DNA adducts are altered forms of DNA that occur as the result of exposure to carcinogens (in the case of smokers these would be the carcinogens present in cigarette smoke).
		A DNA adduct, once formed, can be repaired, resulting in a return to the original DNA structure or be mis-repaired, resulting in a mutation.
	www.greenfacts.org /glossary/abc/adduct.htm (127 words)

	Silicone and ionically modified isocyanate adduct - US Patent 6641922 (Site not responding. Last check: 2007-11-07)
		Adduct according to claim 1 wherein said dimethylsiloxane segments consists of 1-25 dimethylsiloxane units, said intermediate group is alkylene or alkyleneoxy and said isocyanate-reactive groups are selected from the group consisting of hydroxyl, primary amino, secondary amino, carboxyl and thiol or mixtures thereof.
		Adduct according to claim 1 wherein said polyiisocyanate is selected from the group consisting of isomers of toluene diisocyanate, isomers of methylene-bis-phenylisocyanate, polymeric methylene-bis-phenylisocyanate, hexamethylene diisocyanate, isophorone diisocyanate and isomers of hydrogenated methylene-bis-phenylisocyanate, or mixtures thereof.
		Adduct according to claim 6 wherein said anhydride is either phthalic anhydride or hydrogenated phthalic anhydride and said compound is selected from the group consisting of 2-ethanol amine, N-methyl-2-ethanolamine, diethanol amine, diisopropanol amine, 2-amino-2-ethyl-1,3-propanediol and 4-aminobenzoic acid.
	www.patentstorm.us /patents/6641922.html (6405 words)

	Patent 4205156: Novel imidazole-isocyanuric acid adducts and utilization thereof
		It is confirmed that the adduct consists of 1 molecule of isocyanuric acid and 1 molecule of 2-methylimidazole.
		For example, when the adduct of the present invention is incorporated as a curing agent, there is observed an advantageous phenomenon that the pot life of the resulting polyepoxy composition is extremely prolonged as compared with the case where only the imidazole component constituting the adduct is incorporated.
		The 1-benzyl-2-methylimidazole-isocyanuric acid adduct (30 g) described in Example 27 was subjected to expelling distrillation under a reduced pressure of 30 mm Hg in a Claisen flask to obtain 15.9 g (93 mole % based on the adduct) of 1-benzyl-2-methylimidazole having a melting point of 51.degree.
	www.freepatentsonline.com /4205156.html (6859 words)

	Patent 4080318: Polycaprolactone urethane derivatives and coating compositions thereof
		A water insoluble polycaprolactone urethane adduct as claimed in claim 1, wherein said polycaprolactone polyol is a polycaprolactone triol having an average molecular weight of 300 and an average hydroxyl number of 560, said polyisocyanate is 4,4'-methylene bis(cyclohexyl isocyanate) and said anhydride is maleic anhydride.
		A water insoluble polycaprolactone urethane adduct as claimed in claim 1, wherein said polycaprolactone polyol is a polycaprolactone triol having an average molecular weight of 540 and an average hydroxyl number of 310, said polyisocyanate is poly(diphenylmethane diisocyanate) and said anhydride is phthalic anhydride.
		A water insoluble polycaprolactone urethane adduct as claimed in claim 1, wherein said polycaprolactone polyol is a polycaprolactone triol having an average molecular weight of about 300 and an average hydroxyl number of 560, said polyisocyanate is hydrogenated tolylene diisocyanate and said anhydride is phthalic anhydride.
	www.freepatentsonline.com /4080318.html (6204 words)

	Putative susceptibility markers of coronary artery disease: association between VDR genotype, smoking, and aromatic DNA ...
		P-labeled adducts was carried by chromatography in two dimensions on polyethylenimine-cellulose TLC sheets (10 x 10 cm).
		Adduct profiles on the chromatograms were visualized and quantitated by using a PhosphorImager (Molecular Dynamics, Sunnyvale).
		of smoking-related adducts in DNA of the respiratory tract,
	www.fasebj.org /cgi/content/full/12/13/1409 (5705 words)

	Dietary Modulation of DNA Adduct Formation of the Food Mutagen 2-Amino-3-methylimidazo- [4,5-f]quinoline in the ... (Site not responding. Last check: 2007-11-07)
		In the intestines, removal of adducts in animals on either AIN-76A or MO diet was slower than that in the liver, while that in animals on the chow diet was similar to that in the liver.
		The extent of adduct formation was expressed as relative adduct labeling (RAL) values, which were calculated by dividing the counts per minute (cpm) per adduct by the sum of the cpm in the adduct and the normal nucleotides, making adjustments for dilution and aliquot factors.
		Adduct patterns were independent of the diet and were identical to those shown in Figure 1 in all cases.
	ehp.niehs.nih.gov /members/1994/Suppl-6/schut-full.html (3621 words)

	Crystal structures of 2-acetylaminofluorene and 2-aminofluorene in complex with T7 DNA polymerase reveal mechanisms of ...
		AAF adduct by a variety of DNA polymerases ( 10, 11).
		dG-AAF adduct in the context of a replicative polymerase.
		to cause frameshift mutations and for a dG-AF adduct to cause
	www.pnas.org /cgi/content/full/101/46/16186 (4529 words)

	Expert About ad:Adduct
		The primary product of the reaction of (+)-anti-BPDE with DNA, the (+)-trans-anti-benzo a pyrene diol epoxide-N2-dG ((+)-ta BP G) adduct, is the most mutagenic BP adduct in mammalian systems and primarily causes G to T transversion mutations, resulting from the mismatch of aden ine with the BP damaged guanine during replication.
		Examination of the majority of illustrative chromatograms generated from HPLC separation on C18 columns of the MDA-TBA adduct (8)(21)(23)(30)(31)(32) indicates a remarkable absence of those additional peaks that would be expected if HPLC separated the chromophore of interest from other interfering chromogens.
		Using this approach, a single 1,N6-ethenodeoxy aden osine adduct was shown to be repaired inefficiently by excision repair, to inhibit DNA synthesis by approximately 80 to 90%, and to direct the incorporation of correct dTMP opposite this adduct.
	expertsite.biz /dir/ad/adduct.htm (1810 words)

	Enzyme Immunoassay for Aflatoxin B1-Lysine Adduct and Its Validation (Site not responding. Last check: 2007-11-07)
		-cetyl lysine), the recovery of adduct was 62%.
		Absorption spectra of the adduct showed 2 peaks at 275 and 335 nm.
		adduct were synthesized for production of antibodies and as coating antigen, respectively.
	www.aoac.org /pubs/JOURNAL/2001/Sept_Oct/Enzyme_Immunoassay.htm (260 words)

	Development of Aflatoxin B1-Lysine Adduct Monoclonal Antibody for Human Exposure Studies -- Wang et al. 67 (6): 2712 -- ...
		The affinity of AFB and its metabolites and adducts for monoclonal antibodies IIA4B3 and 2B11 was determined by an RIA as
		Two milligrams of albumin digest was analyzed by the RIAs, and the levels of AFB-lysine adduct were determined by use of a standard curve calibrated with different concentrations of purified AFB-lysine adduct.
		Serum albumin adducts in the molecular epidemiology of aflatoxin carcinogenesis: correlation with aflatoxin B
	aem.asm.org /cgi/content/full/67/6/2712 (3741 words)

	The aflatoxin B1 formamidopyrimidine adduct plays a major role in causing the types of mutations observed in human ...
		The aflatoxin B1 formamidopyrimidine adduct plays a major role in causing the types of mutations observed in human hepatocellular carcinoma -- Smela et al.
		The x axis depicts the adduct with which the cell was challenged and the polymerase status of the cell, whereas the y axis is the number of infective centers per milliliter.
		Aflatoxin B1 formamidopyrimidine adducts are preferentially repaired by the nucleotide excision repair pathway in vivo
	www.pnas.org /cgi/content/full/99/10/6655 (4952 words)

	Role of Cytochrome P4501B1 in Benzo[a]pyrene Bioactivation to DNA-Binding Metabolites in Mouse Vascular Smooth Muscle ...
		2 of BP, adduct 1 of 3-OH-BP, and adduct 1 of BPQ adduct to be
		Lane a, adduct 3 of BP; lane b, adduct 2 of BPQ; and lane c, mixture of adduct 3 of BP and adduct 2 of BPQ.
		Moorthy B, Sriram P, Pathak DN, Bodell WJ and Randerath K (1996) Tamoxifen metabolic activation: comparison of DNA adducts formed by microsomal and chemical activation of tamoxifen and 4-hydroxytamoxifen with DNA adducts formed in vivo.
	jpet.aspetjournals.org /cgi/content/full/305/1/394 (5336 words)

	Analyses of bronchial bulky DNA adduct levels and CYP2C9, GSTP1 and NQO1 genotypes in a Hungarian study population with ...
		Analyses of bronchial bulky DNA adduct levels and CYP2C9, GSTP1 and NQO1 genotypes in a Hungarian study population with pulmonary diseases -- Ozawa et al.
		Analyses of bronchial bulky DNA adduct levels and CYP2C9, GSTP1 and NQO1 genotypes in a Hungarian study population with pulmonary diseases
		Adduct levels in smokers with the frequent allele for each polymorphic site are set as 100%.
	carcin.oxfordjournals.org /cgi/content/full/20/6/991 (3668 words)

	Human Enzymes Involved in the Metabolic Activation of the Environmental Contaminant 3-Nitrobenzanthrone: Evidence for ...
		adducts derived from nitroreduction in vitro and in vivo in
		to dA (adducts 1 and 2) or dG (adducts 3 and 4; Ref. 12).
		P-postlabeling of DNA adducts derived from peroxidative activation of carcinogenic non-aminoazo dye 1-phenylazo-2-hydroxynaphthalene (Sudan I).
	cancerres.aacrjournals.org /cgi/content/full/63/11/2752 (6801 words)

	Efficient and Error-Free Replication Past a Minor-Groove DNA Adduct by the Sequential Action of Human DNA Polymerases ...
		Efficient and Error-Free Replication Past a Minor-Groove DNA Adduct by the Sequential Action of Human DNA Polymerases {iota} and {kappa} -- Washington et al.
		-hydroypropanodeoxyguanosine, the primary acrolein-derived adduct in mammalian cells.
		Interchain cross-linking of DNA mediated by the principal adduct of acrolein.
	mcb.asm.org /cgi/content/full/24/13/5687 (3328 words)

	MedFriendly.com: Adduct
		Now your arm would be closer to the middle of your body.
		Moving a finger or fingers towards the middle part of the hand or moving a toe or toes towards the middle part of the foot would be another example of what it means to adduct.
		Compare adduct with abduct, which means to move away from the center.
	www.medfriendly.com /adduct.html (145 words)

	Preferential Misincorporation of Purine Nucleotides by Human DNA Polymerase eta Opposite Benzo[a]pyrene 7,8-Diol ... (Site not responding. Last check: 2007-11-07)
		Typical kinetic data for the trans S dG adduct are shown in Fig.
		In the absence of an adduct, extension of the
		S dG adducts are formed in the ratio of ~6:1 ( 50).
	www.jbc.org /cgi/content/full/277/14/11765 (5803 words)

	trans-Lesion Synthesis Past Bulky Benzo[a]pyrene Diol Epoxide N2-dG and N6-dA Lesions Catalyzed by DNA Bypass ...
		on the conformational characteristics of the adducts in DNA ( 37-39,
		-dG adduct is similar to that of the (+)- trans -lesion (data not shown).
		-dA adduct, the trans -lesion bypass is error-prone (Fig.
	www.jbc.org /cgi/content/full/277/34/30488 (5268 words)

	Nonchromatographic Assay for Malondialdehyde—Thiobarbituric Acid Adduct with HPLC Equivalence -- Badcock et al. 43 ...
		High-performance liquid chromatographic method for the simultaneous detection of malonaldehyde, acetaldehyde, formaldehyde, acetone and propionaldehyde to monitor the oxidative stress in heart.
		Carbonneau MA, Peuchant E, Sess D, Canioni P, Clerc M. Free and bound malondialdehyde measured as thiobarbituric acid adduct by HPLC in serum and plasma.
		Lipoperoxides in plasma as measured by liquid-chromatographic separation of malondialdehyde-thiobarbituric acid adduct.
	www.clinchem.org /cgi/content/full/43/9/1655 (2012 words)

	Great Paternity And Dna Testing Source - Dna Adduct (Site not responding. Last check: 2007-11-07)
		Figure 1: DNA with Adduct Modeled by Suse Broyde of New York University and Brian E. Hingerty at ORNL, an adduct located at one...
		For example, human colon has approximately 10-times the DNA adduct levels and there are approximately 10-times greater protein adduct levels in the the blood of...
		Measurement of DNA adduct levels in marine fish is, therefore, an important step in assessing risk from exposure to...
	www.dna-paternity-info.com /dna/dna_adduct.html (802 words)

	Tamoxifen-DNA Adduct Formation in Rat Liver Determined by Immunoassay and 32P-Postlabeling -- Divi et al. 59 (19): 4829 ...
		adducts in human tissues (20, 21, 22, 23, 24, 25, 26, 27),
		Persistence of TAM-DNA adducts in liver DNA of rats during 21 days after cessation of dosing with 45 mg TAM/kg for 4 days.
		Li D., Dragan Y., Jordan V. C., Wang M., Pitot H. Effects of chronic administration of tamoxifen and toremifene on DNA adducts in rat liver, kidney, and uterus.
	cancerres.aacrjournals.org /cgi/content/full/59/19/4829 (4251 words)

	Strand opening by the UvrA2B complex allows dynamic recognition of DNA damage -- Zou and Van Houten 18 (17): 4889 -- ... (Site not responding. Last check: 2007-11-07)
		to the presence of BPDE adduct in the DNA fragments (Figure 1 B).
		With the early participation of UvrA, the damaged DNA is unwound around the adduct, and an open DNA structure forms with UvrBC proteins, which is characterized by 2 unpaired bases 5' and 3 unpaired bases 3' to the adduct.
		DNA denaturing 3' to the adduct (Figure 6).
	embojournal.npgjournals.com /cgi/content/full/18/17/4889 (8129 words)

	Oxidative DNA damage: mechanisms, mutation, and disease -- COOKE et al. 17 (10): 1195 -- The FASEB Journal
		C4-OH and C5-OH adduct radicals of purines dehydrate and are
		C5-OH and C8-OH adduct radicals are primarily reductants.
		Characterisation of two types of isomeric OH adduct and their unimolecular transformation reactions.
	www.fasebj.org /cgi/content/full/17/10/1195 (8467 words)

	Roster Etymology Medical Arts Humanities Words and Medwords
		Ad Lib Ad Libitum Add Addendum Addict Adduce Adduct
		Ad Ad Lib Ad Libitum Addendum Addict Adduce Adduct
		Ad Ad Lib Add Addendum Addict Adduce Adduct
	www.consultsos.com /pandora/sampleb.htm (282 words)

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