Why do Chinese gene's exam tests cause a burning litter of controversy



A Chinese scientist is at the heart of convincing the world of genetics with Monday applications that used genealogy technology to change the DNA of embryos that are now made by the old women. The test for trying to make infants against HIV infection is widely regarded as informal, and emphasizing its disease; controversy about this latest science. This is a great show about it.

What's a gene cutting, anyway?

This is a technology that – as the name suggests – is capable of changing the genetic build-ups by sending it. remove or remove material in different locations in the genome. The development of a new editorial tool – CRISPR-Cas9 – has made the process easier, more specific and cheaper, and creates much scientific interest. But you're asking, what that surname is about; stand for (which does not have anything to a fried hen)? Regular short paneapromatic reproductions on a regular basis and protein CRISPR 9. Ask!

Why is the pleasure?

Their enthusiasm comes from the ability of gene generating to help with a & # 39; understand better diseases, and to prevent or cure some illnesses. Studies have focused on genetic illness such as cystic fibrosis, hemophilia and anemia, but may also have applied for more complicated illness such as cancer, heart disease and HIV. In fact, medications that contain some of the diseases are now in clinical trials. In a simple way, the intention is to alter the cellular content of cells so that there is a disease in a living person stops or restricted, or so it will not be put forward to future generations.

In this photo, 9th October 2018, Lin Zhitong speaks at an interview in Shenzhen in the south of Guangdong in China. Chinese scientist, Jiankui says he helped his first genetic babies of the world's production: knee girls with the DNA he said he had changed.

Mark Schiefelbein / AP Photo

Why is it controversial?

Much of the research focuses on surgery and animal examinations, as people have not generated human safety. The main means of human study is to deal with disease in "depressed" cells, those who can not be accustomed to. Changing the genera in cells is similar to those in sperm and eggs – this brings great ethical questions. It is one fear that technology can be used to create human beings, watch programs, height or levels of knowledge, although some scientists believe they are technically possible.

Much of the research focuses on surgery and animal examinations, as the result of human safety has not been detected

Is it safe?

There is other concern about serious adverse effects that may occur from genetics, as "out-of-date" errors where the changes occur in the wrong place, or "tricks" , where some cells are edited but not others. Some experts argue, so that these safety issues can be resolved, the ability to harm the benefits of current and future environmental change – the Compared to someone who has a severe disease or as it is already. That is at the heart of why a Chinese project – which is a " Verify that a gene has changed to prevent the person who comes from a & # 39; getting HIV – be convicted. "If it's true, this test is very spectacular," said Professor of Medical University, Julian Savulescu, to Guardian newspaper.

In this photograph of 9th October 2018, Zhou Xiaoqin welcomes her; His storage pipe in a liquid nitric bath after being removed from cryostorage at a Shenzhen laboratory in southern Guangdong in China.

Mark Schiefelbein / AP Photo

Security threat?

The official risk of the US historic community has stated that uncontrolled gene cuts will be used to make harmful biological producers. "It may be adversely affected by misleading unanswered or unexpected to influence economic security issues and national, "said the community's 2016 report to Transport.

Some Canadian researchers and experts require Canada to protect its rules, so a basic investigation of germanic cells can be held here

What is the law about generation of generations?

At least 40 countries have a degree of law or regulation at least preventing the type of tests carried out in China, where genes embryos are implemented in their mothers. One of the tightest laws in Canada makes it an offense – with a penalty of $ 500,000 and 10 years imprisonment – any genital of germ cells, even if they are not used to a new life created.

Do everyone agree on a strict tight restriction?

Some Canadian researchers and experts require Canada to protect its rules, so a basic investigation of germanic cells can be here. "Our policy has just closed a debate," said McGill University's health policy expert, Bartha Knoppers, at a last year's Canadian Cell Phone Network.


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