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Hope Not Hype - Third World Network

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Presence<br />

45<br />

see also Uribarri et al., 2007), including wound healing retardation (Peppa et al., 2003) in<br />

diabetics, and neurodegenerative diseases such as Alzheimer’s (Elliott, 2006). Lysinederived<br />

AGEs have been linked to cancer (Heijst et al., 2005). Higher levels of AGEs<br />

have also been detected in Creutzfeldt-Jakob Disease (CJD) patients, but the cause and<br />

consequences are unknown (Freixes et al., 2006). Glycation can increase the longevity of<br />

peptides in the intestine, possibly contributing to glycoxidation-implicated diabetes-related<br />

autoimmunity (Elliott, 2006).<br />

LY038 and its derivatives have the potential to boost AGE exposure from all foods<br />

that have a corn component, including many processed foods which are heated to high<br />

temperatures.<br />

Processing of some ready-to-eat cereals, which includes heating at temperatures over 230°C,<br />

may explain the high AGE content of these products. Also, many cereals and snack-type<br />

foods undergo an extrusion process under high pressure to produce pellets of various shapes<br />

and densities. This treatment causes major chemical changes, thermal degradation,<br />

dehydration, depolarization, and recombination of fragments all of which can promote<br />

glycoxidation (Goldberg et al., 2004, pp. 1288-1289).<br />

People in different countries are also exposed to different risks because of their<br />

culture or circumstances (also see Appendix Three for a related discussion). For example,<br />

Mexicans and Africans eat significantly more corn per capita than do New Zealanders<br />

(Table 4.5). The proportion of daily protein from corn for an African is 40 times that for<br />

New Zealanders (Table 4.5). A protein- or amino-based food hazard is therefore a<br />

quantitatively different risk for Mexicans and Africans than it is for Americans and New<br />

Zealanders. That is why international food safety guidelines (such as those developed<br />

under the Codex Alimentarius Commission) allow consumption patterns to be taken into<br />

account.<br />

Information about the known patterns of use and consumption of a food, and its derivatives<br />

should be used to estimate the likely intake of the food derived from the recombinant-DNA<br />

plant. The expected intake of the food should be used to assess the nutritional implications<br />

of the altered nutrient profile both at customary and maximal levels of consumption. Basing<br />

the estimate on the highest likely consumption provides assurance that the potential for any<br />

undesirable nutritional effects will be detected. Attention should be paid to the particular<br />

physiological characteristics and metabolic requirements of specific population groups such<br />

as infants, children, pregnant and lactating women, the elderly and those with chronic diseases<br />

or compromised immune systems (Codex, 2003, p. 19).<br />

Mexicans who live in New Zealand but retain their cultural consumption patterns<br />

may be overlooked if a regulator only bases food hazard on per capita (customary)<br />

consumption. For example, Food Standards Australia New Zealand (FSANZ) discounted<br />

food hazards from LY038 based in part on average consumption data:

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