Dietary chemicals

Instead of putting their own dietary chemicals to use, some creatures rob others of particular objects or materials comprising chemicals they want. One striking instance of such robbery in-... 

Conney AH. Enzyme induction and dietary chemicals as approaches to cancer chemoprevention the Seventh DeWitt S. Goodman Lecture. Cancer Res 2003 63 7005-7031. 

Selectivities to synthetic pesticides may be explained, in part, by preadaptations to toxic dietary chemicals. Leaf chewing pests, phloem-sucking pests, and entomophagous natural enemies should have very different exposures to dietary toxicants. Plant defensive chemicals are thought to be allocated mostly to specialized organelles or tissues of external structures, and only at low loadings... 

As we have noted several times in this book, the largest number of environmental chemicals people are exposed to on a regular basis are those present as natural components of the foods, beverages, herbs, and spices that make up their diets. In addition to the nutrients, there are hundreds of natural dietary chemicals that impart flavor, odor, and color. Thousands more are present simply because they play some role... 

Padfici, G.M. (2004) Inhibition of human liver and duodenum sulfotransferases by drugs and dietary chemicals a review of the literature. International Journal of Clinical Pharmacology and Therapeutics, 42, 488—495. 

Nudibranchs have been reported using ascidians and bryozoans as food in addition to tropical sponges [94]. Nudibranchs that are able to manufacture dietary chemicals may have advantages over species that have... 

One of the first SULTlAl inhibitors identified in the rat liver was 2, 6-dichloro-4-nitrophenol (DCNP) (Mulder and Scholtens, 1977). DCNP is a dead-end inhibitor, and exhibits low IC50 values toward SULTlAl and SULT 1 A3 (Seah and Wong, 1994). Hydroxylated polychlorinated biphenyls (HPCBs) are potent inhibitors of recombinant human SULTIEI. HPCBs exhibit low micromolar IC50 values toward thyroid hormones (Schuur et al., 1998). Several dietary chemicals such as quercetin, curcumin, and flavones are known to inhibit SULTs. Some commonly used drugs that inhibit SULTlAl and SULT1A3 activity include NSAIDs such as mefenamic acid, naproxen, and salicylic acid. 

Common dietary chemicals alter gene expression and genome structure. 

Genetic diversity within a popnlation adds statistical noise to stndies of diet in hitmans. Variations in response to diet are cansed by differences in gene expression patterns, protein, and enzyme activities. Natnrally occurring dietary chemicals may interact with the same classes of proteins in each individual, but because individuals have different variants of these proteins, the responses among individuals differ. 

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