FDNS 4600 1st Edition Lecture 24Outline of Past Lecture I. Agricultural Health StudyII. ToleranceIII. Monitoring ResiduesIV. FDA Pesticide MonitoringOutline of Current LectureI. Organic diets significantly lower children’s dietary exposure to organophosphorus pesticidesII. Cancer RisksIII. Integrated Pest ManagementCurrent LectureI. Organic diets significantly lower children’s dietary exposure to organophosphorus pesticidesa. Longitudinal study- over a long time period.i. Randomize control trial is the gold standard. However, there may be someethical issues with this type of study.b. Questions about other household pesticide use are important because the outside exposure to pesticides may affect the results.c. The data shows that while the children were on the organic diet, the exposure to pesticide is the lowest.d. They cannot say that the children are healthier because they used chemical analysis. e. Does a “decrease” really translate to health benefit?i. It might but cannot be concluded from a study like thisf. Should parents pay the extra $$ for organic foods?i. Depends on the parent and is something to think about itII. Cancer risksa. It takes such high doses to cause cancer in animals that it may not be relevant to human life.b. There are a lot of estimates and assumptionsc. Cancer example: “Roundup”These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.i. No exposure 1% for every 50 miceii. 150 mg/kg/day 0%iii. 750 mg/kg/day is about 1%iv. 4500 mg/kg/day is about 3 %v. In order for 50% of the mice to have a tumor, there would have to be 62,000 mg/kg/dayvi. In humans, people would have to eat 10 lbs/day III. Integrated Pest Managementa. Use pesticides as a last resort so the residues are between conventional and organic.b. Organic- three years with organic practicesc. Organic foods can have residued. Are some pesticides safer?i. Biologically-based pesticides seem to be safer than traditional chemical pesticidese. Microbiali. Most used is Bacillus thuringiensis “Bt”f. Plant-incorporated-protectantsi. Gene put in plant to make pesticideg. Biochemical pesticidesi. “Natural” killer by non-toxic
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