The most detailed epidemiological study that tested for a relationship between cancer and glyphosate as well as other agricultural chemicals found “no consistent pattern of positive associations indicating a causal relationship between total cancer (in adults or children) or any site-specific cancer and exposure to glyphosate” (Mink et al., 2012:440; also see section below “Health Effects of Farmer Exposure to Insecticides and Herbicides”). Hagan, and B. Ortiz. The committee heard from some members of the public and some invited speakers that ailments of gastrointestinal origin could be caused by GE crops or their associated technologies or by foods derived from GE crops. 2012. 2013. 2010b. Ren, Y., T. Wang, Y. Peng, B. Xia, and L.J. 2005. Bøhn, T., M. Cuhra, T. Traavik, M. Sanden, J. Fagan, and R. Primicerio. tory labeling of GE foods, that is taken into account, and food without detectable GE DNA or GE protein is not labeled. In the 2010 Centers for Disease Control and Prevention (CDC) survey of ASD in 11 regions of the United States (CDC, 2014), the overall prevalence in children 8 years old was about 1 in 68 (1.47 percent), but there was wide variation among regions and sociocultural groupings of children. Incidence and prevalence of celiac disease and dermatitis herpetiformis in the UK over two decades: Population-based study. Anaerobe 13:6–13. Buhk, G. Corthier, H.J. At the same time, sequencing a human genome has become simpler than ever. Glyphosate; Pesticide tolerances. Evaluating GE Food Sources for Risks of Allergy: Methods, Gaps and Perspective. A statistically significant difference in the overall treatment effect was observed for 16 components (crude protein, carbohydrates (by difference), NDF, calcium, potassium, cystine, palmitic acid, oleic acid, linoleic acid, linolenic acid, behenic acid, folic acid, γ-tocopherol, total tocopherol, lectin, and trypsin inhibitor). (2012) publication on a 2-year rodent feeding study with glyphosate formulations and GM maize NK603 as published online on 19 September 2012 in Food and Chemical Toxicology. Rea, J.P. Cassidy, R.P. In 2015, the International Agency for Research on Cancer (IARC) of the World Health Organization (WHO) issued a monograph on glyphosate as part of its volume on some organophosphate insecticides and herbicides (IARC, 2015). 2006. Statistical significance and biological relevance. vation for development of a specific crop trait, or it can be the secondary effect of a crop trait that is developed primarily for another reason. The mixture does not show a greater toxicity compared to either parent compound alone. Liu, P., X. EPA (U.S. Environmental Protection Agency). If GE foods were causing a substantial number of specific cancers, the incidence of those cancers would be expected to show a change in slope in the time series after 1996, when GE traits were first available in commercial varieties of soybean and maize. Advantages of Genetic Engineering. 1. Better Harvests. When used in crops, genetic engineering can create crops that are pest and disease resistant. This is great because the amount of harvest that would normally be lost can be saved, increasing the harvest. 3. The accessibly written document makes clear that the two are very different and that it is important to decide how large a difference is biologically relevant before designing an experiment to test a null hypothesis of no difference. Rogers, J.K. Hammitt, and P.H. However, there is substantial exposure, and any effects seen in the United States would be of global concern. “To date, no adverse health effects attributed to genetic engineering have been documented in the human population.” National Research Council (2004), “Indeed, the science is quite clear: crop improvement by the modern molecular techniques of biotechnology is safe.” American Association for the Advancement of Science (2012), “Bioengineered foods have been consumed for close to 20 years, and during that time, no overt consequences on human health have been reported and/or substantiated in the peer-reviewed literature.” Council on Science and Public Health (2012), “[Genetically modified] foods currently available on the international market have passed safety assessments and are not likely to present risks for human health. Cao, B. Delaney, and L.H. Journal of Toxicology and Environmental Health, Part A: Current Issues 68:2263–2276. Dermal tests that showed no dermal or systemic toxicity after repeated applications to rabbits at the limit dose of 1000 mg/kg-day. In the United States, regulatory agencies require that the comparison be between the GE crop and its isogenic conventionally bred counterpart grown in side-by-side plots. Bereano, E.A. The CDC report stated that “the extent to which this variation might be. However, the degree of precaution taken in the face of uncertainty is a policy decision that varies among countries and according to the specific uncertainty being considered. including changes over time in survey methods and in the tools for detection of specific chronic diseases. In addition, genetic engineering offers tremendous benefits to the animals themselves by imparting disease resistance traits and enhancing their overall health and well-being. Plant Science 234:119–132. EFSA supporting publication 2014:EN-739. FINDING: There is no evidence that Bt transgenes or proteins have been found in the milk of ruminants. Murthy, H.N., M.I. Ahuja, I., R. Kissen, and A.M. Bones. List of the Advantages of Genetic Engineering 1. It follows the same scientific principles that have been practiced for generations. 2. It makes agricultural practices much safer. 3. It creates greater yields. 4. It allows us to create better food products. 5. It can improve the growth rates of crops. For an event to be considered horizontal gene transfer, DNA must be in the form of a functional (rather than fragmented) gene, enter into bacterial or somatic cells, and be incorporated into the genome with an appropriate promoter, and it must not adversely affect the competitiveness of the cells; otherwise, the effect would be short-lived. 2010. Toxicity studies conducted for regulatory purposes—such as those on food additives, pharmaceuticals, and pesticides—are carried out under Good Laboratory Practices (GLP) Guidelines (FDA, 1979; EPA, 1989; OECD, 1998b). Mejia, M. Iwasa, M. Kobayashi, M. Hayashi, A. Watanabe-Takahashi, T. Narisawa, T. Tohge, M. Hur, E. Sykin Wurtele, B.J. No other translatable DNA sequences were incorporated into the plant genome” (Health Canada, 1999:1). Tastier food. The relationship between phenolic compounds from diet and microbiota: Impact on human health. In each case of genetic engineering, the risk has to be weighed against the potential benefits, according to Margaret McLean, director of biotechnology and health care ethics at the Markkula Center for Applied Ethics. remarkable achievement to overcome consequences of several 2007. For example, Shepherd et al. As can be seen in Figure 5-1, Séralini et al. Unintended effects associated with the genetic-engineering process (for example, DNA changes resulting from plant tissue culture). Comparison of grain from corn rootworm resistant transgenic DAS-59122-7 maize with non-transgenic maize grain in a 90-day feeding study in Sprague-Dawley rats. Available at http://ofmpub.epa.gov/apex/pesticides/f?p=chemicalsearch:3:0::no:1,3,31,7,12,25:p3_xchemical_id:1322. Lancet 378:1461–1484. 2013. Guideline for the Conduct of Food Safety Assessment of Foods Using Recombinant DNA Plants. If the introduced protein is similar to a protein already known to be an allergen, it becomes suspect and should be tested in people who have an allergy to the related protein. Chagnon, and G.-É. research demonstrating that some, but not all, proteins already known to be food allergens are resistant to digestion by gut fluid. Bengaluru, April 25 (IANS) New research has found that the seeds of jackfruit — a large fruit found in many tropical countries — are a potentially low-cost substitute for cocoa beans, the primary ingredient of chocolate. Bt toxin genes are not exempted because they come from bacteria (see Chapter 9 for regulatory details). Farm-worker exposure to insecticides and herbicides is lower in the United States and some other developed countries than is the case for farm workers on resource-poor farms. Grain quality through altered expression of seed proteins. Ricroch, A.E. qualities to create legitimate treatment of diseases [4]. Effects of feeding Bt MON810 maize to sows during first gestation and lactation on maternal and offspring health indicators. As a result of low yields due to poor farming practices, aging trees and limited access to inputs such as fertilizer and planting materials. In this context, In addition, the T-DNA contained sequences that encoded the enzyme neomycin phosphotransferase II (NPTII). Martin, C., Y. Zhang, C. Tonelli, and K. Petroni. transgenic plants by hereditary adjustment. A more complex example would be engineering of fish oils (very long-chain unsaturated fatty acids) to improve the health profile of plant oils; depending on the target species, this process has required introduction of at least of three and at most nine transgenes (Abbadi et al., 2004; Wu et al., 2005; Ruiz-Lopez et al., 2014). Zalunin, L.P. Revina, A.I. Ali, E. Abrigo, N. Oliva, and L. Torrizo. Final Registration of Enlist Duo™ Herbicide. 2014. Ross, G.E. also argue that it is unethical to conduct an underpowered study. Chocolate is not good for Côte d’Ivoire because primates and the environment are being harmed, children and adults are working with unsafe materials, and cocoa farmers are not getting enough education. Accessed October 13, 2015. 2012. Review of the Séralini et al. This may help reduce hunger around the world. In this study, the farmers who used Bt cotton reported 0.19 poisonings per season while those with conventionally bred cotton reported 1.6 poisonings. A number of articles since then have supported the approach (Fernandez et al., 2013) or have found it unnecessary and impractical (Goodman et al., 2013; Graf et al., 2014). 2014. Journal of Allergy and Clinical Immunology 76:242–245. Prevalence of celiac disease in at-risk and not-at-risk groups in the United States: A large multicenter study. 112–127 in Animal Nutrition with Transgenic Plants, G. Flachowsky, ed. U.S. Patent 8,546,646, filed September 14, 2012, and issued October 1, 2013. diagnosis of gastroesophageal reflux disease (GERD) and who were treated with gastric acid-suppressive medication and matched with 4,724 children who had GERD but were not so treated. Genetic engineering is the deliberate modification of the animal’s genome using techniques of modern biotechnology. In the second case, EPA allowed a Bt maize variety developed by Aventis CropScience with a potential for allergenicity (due to decreased digestion of the protein Cry9c in simulated gastric fluid) to be sold as cattle feed under the name StarLink™; because of the potential for allergenicity, the variety was not approved for direct human consumption. Wright, J.J. Marois, and D. Wilson. 1987. United States Pharmacopeial Convention, v. 24. For example, many European countries and the European Union (EU) as a whole generally take a more precautionary approach with GE foods and climate change whereas the United States has historically taken a more precautionary approach with tobacco products and ozone depletion (Wiener et al., 2011). FINDING: Experimental results with non-GE crop varieties that have increased concentrations of micronutrients demonstrate that both GE and non-GE crops with these traits could have favorable effects on the health of millions of people, and projects aimed at providing these crops are at various stages of completion and testing. Meenakshi, A. Oparinde, S. Perez, and K. Tomlins. Perez. Porcine models for the metabolic syndrome digestive and bone disorders: A general overview. Many of the studies have found differences between the GE plants and the isogenic conventionally bred counterparts, but for many components there is more variation among the diverse conventionally bred varieties than between the GE and non-GE lines (Ricroch et al., 2011, Ricroch, 2013). Determinations of Nonregulated Status: J.R. Simplot Co.; Potato Genetically Engineered for Low Acrylamide Potential and Reduced Black Spot Bruise. 2008. Bt cotton was not yet widely available in the beginning of the experiment, but eventually some farmers adopted Bt cotton and decreased spraying. However, if the question is “Is it likely that eating. Even though progress has been made on allergenicity prediction since that report was published in 2004, the committee found that post-commercialization testing would be useful in ensuring that no new allergens are introduced. (2004), for the number of units (cages with two animals) per treatment. Ladics, G.S., G.J. The 2015 IARC Working Group found that, although there is “limited evidence in humans for the carcinogenicity of glyphosate,” there is “sufficient evidence in experimental animals for the carcinogenicity of glyphosate”. The release of genetically altered organisms in the environment can increase human suffering, decrease animal welfare, and lead to ecological disasters. Similarly, Oguchi et al. In an accessible style, this book examines how biotechnology tools came to be discovered, how they are being used in medicine, and what the future of medicine could look like. 6 Micronutrient deficiencies. Lei, and D.D. Comparative safety testing of genetically modified foods in a 90-day rat feeding study design allowing the distinction between primary and secondary effects of the new genetic event. Sceurman. Substantial efforts have been made to increase the oxidative stability of soybean oil, a major cooking oil all over the world, as a means of avoiding trans-fats generated through the hydrogenation process and enhancing omega-3 fatty acid content of the oil for use in both food and feed applications. EFSA (European Food Safety Authority). FINDING: The incidence of a variety of cancer types in the United States has changed over time, but the changes do not appear to be associated with the switch to consumption of GE foods. Cocoa farming is also a main driver of deforestation in some producing countries like Ivory Coast , which contributes to climate change. However, other risks have been hypothesized for GE crops because previous uses of a trait (for example, Bt as an insecticidal spray) did not have consumption of the GE plant products as the route of exposure. Aging trees limit productivity; disease decimates about 30% of annual production; and climate change studies show the crop will be adversely affected by higher temperatures and increased water evaporation. Post-commercialization surveillance of such specific agents as drugs and medical devices is difficult, but there is generally a well-defined endpoint to look for in patients. Ibáñez, C., C. Simó, V. García-Cañas, T. Acunha, and A. Cifuentes. Antimicrobial activity of different proteins and their fragments from Bacillus thuringiensis parasporal crystals against clostridia and archaea. Comparative metabolomic study of transgenic versus conventional soybean using capillary electrophoresis-time-of-flight mass spectrometry. That is plausible, but Lusk (2014) examined the approach used by Spisák et al. Einspanier, R. 2013. They were therefore “considered not biologically relevant.” In compositional analysis, as in some of the whole-food animal testing, it is difficult to know how much of the variance and range in values for the components is due to the crop variety, the growing conditions, and the specific laboratory experimental equipment. Food and Chemical Toxicology 45:551–562. Time trends in allergic disorders in the UK. Human aflatoxicosis in developing countries: A review of toxicology, exposure, potential health consequences, and interventions. That observation and the fact that the protein withstands pepsin digestion suggest that gamma-zein could be an allergen. In the cases of the GE crops commercially available in the United States and some other countries in 2015, inputs from many public and private institutions regarding their specific concerns have influenced the type and extent of GE crop food-safety tests conducted by companies, agencies, and other researchers. The differences were considered to be small and within the range of published values for other soybean varieties. Pharmacopeia, simulated gastric fluid, TS, simulated intestinal fluid, TS. Mycotoxins and human disease: A largely ignored global health issue. (2004) study, the average white blood cell count for the four treatments, each with 9 or 10 female Sprague-Dawley rats, is 6.84 103/µl, and the average standard deviation is 1.89 103/µl. The studies range from examination of short-term growth of piglets to multigenerational studies of sows and piglets, with mixed designs having either generation or both exposed to Bt maize and non-Bt maize. Critical Reviews in Food Science and Nutrition 52:142–161. Accessed March 12, 2016. (2009) were not able to find any DNA in purified beet sugar. Genetically Engineered Crops builds on previous related Academies reports published between 1987 and 2010 by undertaking a retrospective examination of the purported positive and adverse effects of GE crops and to anticipate what emerging ... Accessed December 13, 2015. Macpherson, A.J., K.D. However, given the general relationship between general health and longevity, the data are useful. Smith, J.M. Hence, the usefulness of simulated gastric fluid in the case of a less acidic (higher pH) stomach is questionable, whether used for non-GE foods or GE foods. Bennett, R., S. Morse, and Y. Ismael. In the Minnesota and UK studies, there is a clear pattern of increase in celiac-disease incidence (or at least its detection or the extent of self-reports) that started before 1996 (Catassi et al., 2010), when U.S. citizens began to consume more GE foods and the use of glyphosate increased in the United States but not in the United Kingdom. 2012. McCue, W.R. Belknap, and H.V. Educational disparity in obesity among U.S. adults, 1984–2013. Monitoring genetically modified soybean along the industrial soybean oil extraction and refining processes by polymerase chain reaction techniques. 2009. FDA (U.S. Food and Drug Administration). Fryar, C.D., M.D. Transgenic Research 14:775–784. Another deadly disease now being treated with genetic engineering is the “bubble boy” disease (Severe Combined Immunodeficiency). 408 for 90-day trials (OECD, 1998a) calls for 10 males and 10 females for each treatment. FINDING: A major government-sponsored prospective study of farm-worker health in the United States does not show any significant increases in cancer or other health problems that are due to use of glyphosate. Progress in science needs controversial debates aiming at the best methods as basis for objective, reliable and valid results approximating what could be the truth. For GE crops, a public concern has been that the immune system is compromised through ingested transgenic proteins. from the same laboratory (Hohlweg and Doerfler, 2001) did not find the transfer in an eight-generation study. Alavanja. Trabalza-Marinucci, M., G. Brandi, C. Rondini, L. Avellini, C. Giammarini, S. Costarelli, G. Acuti, C. Orlandi, G. Filippini, E. Chiaradia, M. Malatesta, S. Crotti, C. Antonini, G. Amagliani, E. Manuali, A.R. Role of environmental chemicals in diabetes and obesity: A National Toxicology Program workshop review. SAP Minutes No. Critical Reviews in Food Science and Nutrition 49:164–175. Sanders, D. 2013. They promise significant benefits in human health and food security by enabling dietary improvements through more nutritious and healthy meat and milk. Lee, K.L. 2014b. Outward clinical signs and body weights were observed and recorded throughout the 14 day study. Bowers, E., R. Hellmich, and G. Munkvold. Many Americans are ok with genetic engineering of animals if it benefits human health. Séralini, G.E., E. Clair, R. Mesnage, S. Gress, N. Defarge, M. Malatesta, D. Hennequin, and J.S. The committee received comments from an invited speaker (Smith, 2014) and from the public regarding the possible relationship between increases in the incidence of specific chronic diseases and the introduction of GE foods into human diets. (Bartholomaeus et al., 2013). Accessed October 29, 2015. New traits will probably include fiber content (either increased to add more fiber or decreased to improve digestibility), altered oil profiles, decreased concentrations of antinutrients, increased or more consistent concentrations of such phytochemicals as antioxidants (for example, flavonoids) and phytoestrogens (for example, isoflavones or lignans), and increased mineral concentrations. Measurement of endogenous allergens in genetically modified soybeans—Short communication. Results of the tests of Cry1F show no clinical signs of any toxicity even when Cry1F protein was fed at 576 mg/kg body weight, which would be the equivalent of about ¼ cup of pure Cry1F for a 90.7-kilogram (200-pound) person. Gasnier, C., C. Dumont, N. Benachour, E. Clair, M.C. Melton. The researchers concluded that they did not find any meaningful differences between the two treatments. As can be seen in Figure 5-8, the global incidence of those two cancers has increased. Some of the risks posed by the intended changes can be anticipated on the basis of the physiological and biochemical characteristics of the engineered change. Variety and environment effects on the dynamics of saponins in lucerne (Medicago sativa L.). Animal 5:1769–1773. A potato line was genetically engineered to have low amounts of free asparagine and in early tests had as little as 5 percent of the acrylamide compared with non-GE potatoes when cooked at high temperatures (Rommens et al., 2008). Cancer Research 16:194–197. Prospective cohort studies of health are the high benchmark of epidemiology studies, and the Agricultural Health Study (AHS) funded by the U.S. National Institute of Environmental Health Sciences used this approach to evaluate private and commercial applicators in Iowa and North Carolina. Stability of food allergens to digestion in vitro. 2009. With HR crops, there are regulatory processes for the plant itself and separate regulatory processes for the new kind of exposure that can accompany spraying of a herbicide on a crop or on a growth stage of a crop that has never been sprayed prior to availability of the GE variety. Annual Review of Plant Biology 64:19–46. ACS Monograph 189. New Biotechnology 30:349–354. General compositional analysis and the specific content of the introduced proteins are typically conducted on raw products, such as maize kernels or soybean seed. The committee also sought evidence from the public and from the speakers at its public meetings and webinars.1, The committee thinks that it is important to make clear that there are limits to what can be known about the health effects of any food, whether non-GE or GE. However, low yield and comparably poor agronomic traits have removed high-lauric acid canola from the commercial market. Bt cotton benefits, costs, and impacts in China. Rockville, MD: FDA. Molecular aspects of gene transfer and foreign DNA acquisition in prokaryotes with regard to safety issues. The sophistication of the studies has increased (Ibáñez et al., 2015) and is likely to increase further. Plant Journal 77:367–379. Available at http://www.hc-sc.gc.ca/fn-an/alt_formats/hpfb-dgpsa/pdf/gmf-agm/ofb-096-100-a-eng.pdf. A more recent study in Mozambique found a decrease in diarrhea prevalence associated with consumption of the high–beta-carotene sweet potato (Jones and DeBrauw, 2015). French GM-fed Rat Study Triggers Furore. 2004. Development of food allergies in patients with Gastroesophageal Reflux Disease treated with gastric acid suppressive medications. and What is biological relevance? Retention of provitamin A carotenoids in staple crops targeted for biofortification in Africa: Cassava, maize and sweet potato. Washington, DC: National Academy Press. Results of a 90-day safety assurance study with rats fed grain from corn borer-protected corn. A reduction in aflatoxin in both maize and peanut would have substantial health benefits in some developing countries (Williams et al., 2004; Wild and Gong, 2010). Because of demand for saturated functional oils for the trans-fat–free market, high-lauric acid GE canola was created in 1995 through an “Agrobacteriummediated transformation in which the transfer-DNA (T-DNA) contained the gene encoding the enzyme 12:0 ACP thioesterase (bay TE) from the California Bay tree (Umbellularia californica). Mink, P.J., J.S. Journal of Agricultural and Food Chemistry 62:6463–6472. In some cases, conventionally bred varieties have been taken off the market because of unusually high concentrations of a toxic compound, as in the case of a Swedish potato variety that was banned from sale in the 1980s because of high concentrations of glycoalkaloids (Hellenas et al., 1995). (2007) in which rice was genetically engineered to produce the kidney bean lectin, agglutinin E-form, which is known to have toxic properties. However, several region-wide human populations have been exposed to GE foods for many years whereas others have not; this could enable an a priori hypothesis to be tested that populations that have been exposed to foods from specific GE crops will not show a higher rate of allergic response to such foods. Ge crops, genetic engineering offers tremendous benefits to the animals themselves by imparting disease resistance traits and their! Pepsin digestion suggest that gamma-zein could be an allergen another deadly disease now being treated with gastric suppressive! Detectable GE DNA or GE protein is not labeled A carotenoids in staple crops targeted for biofortification in Africa Cassava! And archaea suggest that gamma-zein could be an allergen it is unethical to Conduct an underpowered study resistance and... R. 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Coast, which contributes to climate change on the dynamics of saponins in lucerne ( Medicago sativa L..! Severe Combined Immunodeficiency ) along the industrial soybean oil extraction and refining processes by polymerase chain techniques...