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    Home > [quick news] November 27, 2018 gene editing baby test caused a storm of public opinion

    [quick news] November 27, 2018 gene editing baby test caused a storm of public opinion

    • Last Update: 2018-11-27
    • Source: Internet
    • Author: User
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    Gene editing baby experiment causes public opinion storm Gene editing becomes the center of public opinion storm again On November 26, he Jiankui, associate professor of Biology Department of South University of science and technology, announced to the media that a pair of genetically modified twins had been born in November, and the gene editor made them able to resist AIDS naturally after birth According to the report, he Jiankui's team used CRISPR / cas9 gene editing technology to modify the CCR5 gene, which is one of the main auxiliary receptors for HIV to invade the cells of the body But biomedical researchers said, "this kind of gene editing can't completely imitate the specific deletion of CCR5 gene, so it's not sure whether it can really reduce the risk of AIDS", "cells divide very fast in the early stage, at this time it's difficult to confirm whether the final state of the edited gene in cells is the same as other cells In this way, it's easy for people to become mosaics "It's hard to estimate how many percentage of cells and genes have been edited." In addition, the South University of science and Technology issued a statement: "this research work was carried out outside the University by associate professor he Jiankui, and has not been reported to the University and its Department of biology The University and the Department of biology are not aware of this As for he Jiankui's application of gene editing technology in human embryo research, the academic committee of the Department of biology thinks that it seriously violates the academic ethics and academic norms " Relevant units have launched an investigation into the ethical issues involved in the incident on the 26th Http://digitalpaper.stdaily.com/http_www.kjrb.com/kjrb/html/2018-11 / 27 / content_ HTM? Div = 0 Recently, Li Feng's team of Jilin University and Richard h friend's team of Cambridge University worked together to develop a new type of light-emitting diode, which greatly improved OLED (organic light-emitting diode) by using free radicals )The luminous efficiency of Relevant papers were published in nature recently The triplet excitons, which account for 75% of OLED, usually do not emit because of transition forbidden Therefore, how to achieve 100% internal quantum efficiency (IQE) using triplet excitons has become a research hotspot in the field of OLED in recent 30 years The OLED of ttm-3ncz and ttm-3pcz doped films prepared by our team is close to the theoretical limit value of 100% Iqe, which is the highest value of deep red light / near-infrared light-emitting diodes reported so far The research results show the application prospect of light-emitting radicals in the field of organic optoelectronics, and open up a new direction for the research of OLED Https://www.nature.com/articles/s41586-018-0695-9 MRI can effectively predict the risk of Alzheimer's disease Alzheimer's disease is a progressive and irreversible brain disease It is not easy to accurately predict the risk of Alzheimer's disease before relevant symptoms appear And a new study in the United States shows that one day, doctors can accurately determine the disease risk of the target in the next few years through simple MRI brain scanning The study was conducted by researchers at the University of Washington School of medicine and the University of California, San Francisco The team used an MRI technique called diffusion tensor imaging (DTI) to look for signs of physiological decline in target cognitive ability Diffusion tensor imaging (DTI) is a special form of MRI, which is an effective means to observe and track the condition of white matter fiber bundle By DTI, researchers can assess the health of white matter, which is closely related to cognitive decline Https://press.rsna.org/timsnet/media/pressreleases/14'pr'target.cfm? Id = 2044 Tsinghua postdoctoral Wan Ruixue won the 2018 Young Scientist Award Recently, science & scilifelab prize for young scientists was awarded by science magazine and scilifelab )It was revealed that Wan Ruixue, a postdoctoral student of Tsinghua University, was selected as the winner of cell and molecular biology category because of his research achievements in the three-dimensional structure of splicing body and RNA splicing This is the first time that a researcher studying for a doctorate in China has won the award The Young Scientist Award is a global award jointly sponsored by science / AAAs, scilifelab and four famous universities The award is selected once a year, and four of the world's top young researchers in their respective fields are selected Https://mp.weixin.qq.com/s/o32iw3aurvbyiyur63e-rg intelligent toilet can "see a doctor online" European Space Agency and Massachusetts Institute of technology jointly developed the intelligent toilet named "fitloo", which can analyze excreta and detect body signals related to cancer and diabetes, track changes in glucose level and detect signs of disease Data collected by toilet sensors can be transmitted to mobile phones in real time This intelligent toilet is expected to be used in the detection and prevention of potential diseases in public toilets and the monitoring of astronauts' health on the international space station in the future https://www.dailymail.co.uk/sciencetech/article-6428983/Smart-toilet-FitLoo-tracks-content-faeces.html
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