TOXICOLOGICAL CHEMISTRY AND BIOCHEMISTRY - CHAPTER 18 ppt

... the urine of 6- and 7-year- old Italian children was analyzed for dimethyl- and diethyl- phosphates, thiophosphates, and dithiophosphates, such as the examples shown in Figure 18. 11. Levels of ... reaction: Figure 18. 11 Examples of dimethyl- and diethyl- organophosphate, organothiophosphate, and organodithio- phosphate esters that can be measured in urine as biomarkers of exp...

Ngày tải lên: 11/08/2014, 15:20

... benzo(a)pyrene 7, 8- diol-9,10-epoxide. Benzo(a)pyrene {O}, epoxidation O Benzo(a)pyrene 7,8-epoxide + H 2 O, epoxide hydrolase HO HO Benzo(a)pyrene 7,8-diol benzo(a)pyrene 7,8-diol-9,10-epoxide HO HO O {O}, ... DNA N C N C C C N N CH H O H 2 N N C N C C C N N CH H O H 2 N CH 3 CH 3 Dimethylnitros- 3,3-Dimethyl- 1- 1,2-Dimethylhydra- Methylmethane- ONN CH 3 CH 3 NN HH H 3 CCH 3 CH 3 S O...

Ngày tải lên: 11/08/2014, 15:20

... of a six-membered ring. The most important derivatives of pyridine are the mono-, di-, and trimethyl derivatives; the 2-vinyl and 4-vinyl derivatives; 5-ethyl-2-methylpyridine (MEP); and piperidine, also ... N H H Glucuronide CCH 3 N H O OH N H CCH 3 N H S O O HO O CCH 3 N H O p-Aminophenol Phenyl N- hydroxylamine N-acetyl metabolite N-acetyl- p-glucuronide metabolite N-acetyl- p-sulfat...

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... of environmental chemistry. Chapter 3, Biochemistry, ” gives the fundamentals of the chemistry of life processes essential to understanding toxicological chemistry and biochemistry. Chapter 4, “Metabolic ... Cataloging-in-Publication Data Manahan, Stanley E. Toxicological chemistry and biochemistry / by Stanley E. Manahan 3rd ed. p. cm. Includes bibliographical referen...

Ngày tải lên: 11/08/2014, 15:20

... ||||| ). C N C C C N O O H H H H CH 3 C N C C C N O O H H H N C C C N C N C N H H H NH 2 N C C C N C N C NH H O H 2 N H CC C C CH 2 HO H H HO H OH OH H O CC C C CH 2 HO H H HO H H OH H O P O - O - - O O Occur in both DNA and RNA Uracil (U) Thymine (T) Adenine (A) Guanine(G) Phosphate 2-Deoxy-β-D- ribofuranose C N C C C N NH 2 O HH H H Cytosine (C) β-D-Ribofuranose Occur ... Medic...

Ngày tải lên: 11/08/2014, 15:20

... C O O - CHH C O O - CHH CO - O CC O O - CHH C O O - CH CO - O H HO C C CO - O HH O O - O C HHC Citrate Isocitrate α-Ketoglutarate C C S HH O O - O C HHC CoA CHH O - O C HHC C O O - C O - O C C C O O - H H C O - O C C C O O - H HH OH C O - O C C C O O - O HH Oxaloacetate Malate Fumarate ... with acetyl-CoA from glycolysis to s...

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... substances and their metabolites react biochemically in an organism to exert a toxic effect. Chapter 7 is devoted to defining and explaining toxicological chemistry, and Chapters 10–19 cover the toxicological ... . 6.1.5 Toxicological Chemistry Toxicological chemistry relates chemistry to toxicology. It deals with the chemical nature of toxic substances, how they are...

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... facile detection of β -galactosidase activity. This is accomplished with the chromogenic substrate 5-bromo-4-chloro-3-indoyl- β -D-galactopyrano- side, which is metabolized by β -galactosidase to ... Zetterqulist, H., and Olerup, O., HLA-DR, -DQ, and -DP alleles in nickel, chromium and/ or cobalt-sensitive individuals: genomic analysis based on restriction fragment length polymor- phis...

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... phosphorylation. C CPO 3 CO H HHO H H O C CPO 3 CO PO 3 HHO H H O O C CPO 3 CO AsO 3 HHO H H O O 2- 2- 2- 2- 3- Phosphate Glyceraldehyde 3-phosphate Additional processes leading to ATP formation 3- Arsenite (AsO 3 ) 1-arseno- 3- phosophoglycerate Spontaneous ... element? SS Cd H + S H + S H Cd 2+ + C CPO 3 CO H HHO H H O C CPO 3 CO PO 3 HHO H H O O C CPO 3 CO AsO 3 HHO...

Ngày tải lên: 11/08/2014, 15:20

... human blood and on rodents suggest that ClO 2 and its metabolic product ClO 2 – cause formation of methemoglobin, decrease the activities of glucose-6-phosphate dehydro- genase and glutathione ... gases, 3.5 g/l for HBr and 5.7 g/l for HI at 0°C and atmospheric pressure. These compounds are used much less than HCl. Both are irritants to the skin and eyes and to the oral and r...

Ngày tải lên: 11/08/2014, 15:20