基因工程通过在植物中转化生物和非生物胁迫抗性基因,彻底改变了农业。转基因作物的生物安全性是消费者和监管当局关注的主要问题。
■转基因棉花的14周生物安全性和毒性分析,含有5个转基因((Cry1Ac,Cry2A,CP4EPSPS,VIP3Aa,和ASAL)),是在白化小鼠身上进行的。将30只小鼠分为三组(常规,非转基因,没有Bt,和转基因,含有目标作物)根据给出的饲料,每组10只小鼠,每组5只雄性和5只雌性小鼠。
■在研究期间,与对照组相比,非转基因和转基因组未观察到任何研究参数的生物学显著变化,即小鼠体重的增加,生理,病态,和分子分析,不管老鼠的性别。然而,在雄性小鼠的血液学参数中观察到统计学上的显着变化,而在雌性研究组小鼠中没有观察到这种变化。表达式分析,然而,与非转基因和常规组相比,转基因组的TNF基因增加了许多倍。
■总的来说,没有生理,病态,或在饲喂转基因饲料的小鼠中观察到分子毒性。因此,可以推测,靶向转基因作物是生物安全的。然而,需要更多的研究来通过表达谱来确认产品在动物身上的生物安全性。
UNASSIGNED: Genetic engineering has revolutionized agriculture by transforming biotic and abiotic stress-resistance genes in plants. The biosafety of GM crops is a major concern for consumers and regulatory authorities.
UNASSIGNED: A 14-week biosafety and toxicity analysis of transgenic cotton, containing 5 transgenes ((Cry1Ac, Cry2A, CP4 EPSPS, VIP3Aa, and ASAL)), was conducted on albino mice. Thirty mice were divided into three groups (Conventional, Non-transgenic, without Bt, and transgenic, containing targeted crop) according to the feed given, with 10 mice in each group, with 5 male and 5 female mice in each group.
UNASSIGNED: During the study, no biologically significant changes were observed in the non-transgenic and transgenic groups compared to the control group in any of the study\'s parameters i.e. increase in weight of mice, physiological, pathological, and molecular analysis, irrespective of the gender of the mice. However, a statistically significant change was observed in the hematological parameters of the male mice, while no such change was observed in the female study group mice. The expression analysis, however, of the TNF gene increases many folds in the transgenic group as compared to the non-transgenic and conventional groups.
UNASSIGNED: Overall, no physiological, pathological, or molecular toxicity was observed in the mice fed with transgenic feed. Therefore, it can be speculated that the targeted transgenic crop is biologically safe. However, more study is required to confirm the biosafety of the product on the animal by expression profiling.