Add Bookmark | Recommend this book | Back to the book page | My bookshelf | Mobile Reading

Free Web Novel,Novel online - All in hlnovel.com -> Prose -> The Half-Blind Woman s Hero s Journey

Chapter 911 Standing for you

Previous page        Return to Catalog        Next page

    ?

    ¡ª¡ª"In this case, I will share it with you from the perspective of a chief physician of Western medicine with a scientific explanation.

    However, my purpose is to explain to Chu Lihua, and I have no intention of convincing you.  "

    Chu Lihua was very moved by it. She opened her eyes wide and looked at Liu Xingting. Although she couldn't see the full face clearly, the general outline could still be seen clearly.

    Liu Xingting's voice was calm and powerful, "If what Chu Lihua said just now, everyone thinks it is unscientific. Then, I will first share with you a medical 'science'.

    The problem of many eye disease patients is actually in the retina.  For example, macular degeneration in the elderly is a retinal disease that is one of the leading causes of blindness in people over the age of 50.

    Although Chu Lihua was young, she also suffered from such a disease due to various reasons.  She still hopes to adjust her body functions through her own efforts, so as to return to normal.

    So if we treat this type of disease scientifically, how does it work?

    All of us should know what human beings came from in the first place.  Each of our organs is differentiated and developed from stem cells, which we call "seed cells".

    And if the optic neuropathy is damaged, if it cannot be recovered, it can only be replaced with a new one.

    How do new ones come about?  transplant.  However, in China, there are about 1.5 million people who need organ transplants every year, but only 10,000 people can get the needed organs and successfully complete the transplant operation.

    What about the rest of the people?  Rely on technology.  For this point, scientists have thought of many ways. For example, some scientists have tried to transplant animal organs into humans; but the biggest problem with this method is that there are serious rejection reactions between different species.

    In other words, just like the system and software are not compatible, if not done properly, it will bring side effects.  Some scientists are also trying to use new materials to make artificial mechanical organs, hoping to make internal organs like making prosthetics.  But machines are machines after all, and many functions of natural organs are difficult to realize through machines.

    Is there any better way?

    In 1996, the birth of Dolly the cloned sheep was a heart-stopping experience.

    Since it is possible to clone a live sheep, can it also clone a human being who is the same as oneself, and use the cloned human organs for transplantation?

    This idea seems simple, but it involves some problems.  The first is a technical issue. The cloned sheep Dolly was the only one to survive out of 277 samples; she died of premature aging after living for six years, which shows that the survival rate of cloned animals is very low.

    This is true for animals, but it is even more difficult to clone humans.  On the other hand, ethical issues cannot be ignored.  If a person is really completely cloned, then it will be a living person.  Organ transplantation from a large number of living people is a naked crime.

    Since people cannot be cloned, can organs be cloned or regenerated?  This is really possible.  In 2007, Shinya Yamanaka, a Japanese biomedical scientist and director of the Cell Research Institute of Kyoto University, led a team that successfully transformed human skin cells into embryonic stem cells by introducing specific genes.

    To put it more vividly: there are many kinds of cells in the human body, and different organs need different cells.

    For example, the cells of human internal organs are not exactly the same as the cells of limbs such as hands and feet.  So if you want to build organs, you must first have the right cells.

    The embryonic stem cells we mentioned just now, in simple terms, are the magical 'seed' cells we just mentioned.  Given some suitable conditions or stimuli, this 'seed' cell can become a specific cell that humans need.

    For example, some nutrients may be given, and it will become a nerve cell for nerves. As long as the growth of 'rain and dew' is suitable, it can even grow into cardiomyocytes for the heart and so on.

    In this way, people can get any kind of cells they want from the laboratory for organ transplantation.  However, how to obtain stem cells is a difficult point.  Before, people wanted to extract this kind of 'seed' cells by cloning, but unfortunately they couldn't.

    Shinya Yamanaka's experiment achieved a breakthrough.  His team bypassed the path of cloning, and by introducing genes, the differentiated and mature cells 'reverse growth' became embryonic stem cells.

    For example, we originally wanted to copy a person exactly like ourselves, and then extract 'seed' cells from him to save ourselves.

    Now, Shinya Yamanaka's technique is to randomly take a small piece of cells from our body and inject several magical 'potions', and it can become the 'seed' cells we want.  ??For this discovery, Shinya Yamanaka was awarded the Nobel Prize in Medicine in 2012.

    Through Shinya Yamanaka's technology, scientists can easily create 'seed' cells and differentiate these cells into various types of cells, but this is only the first step in organ regeneration.

    How to turn pluripotent stem cells into tissue and organ transplants that can be used in clinical practice is another question.  In order to make this black technology truly bring good news to patients who need organ transplants, scientists have also exhausted all means.

    Let's give another example.  Pluripotent stem cells are what we call 'seed' cells - when we plant this seed, we actually want it to 'grow' into the complete organ we dream of.

    Can it really 'grow' organs?  It's really 'long'.  For example, a research team led by Japanese scientist Yoshiki Sasai cultivated embryonic stem cells into the initial structure of the retina, which is the material that can be used to manufacture artificial retinas.

    With the technology of Yoshiki Sasai, many patients with macular degeneration have the hope of being cured.  There is already a 70-year-old man in Japan who became the first person to eat crabs.

    The scientific research team extracted the skin cells of the elderly, induced them into "seed" cells, and then cultivated the "seed" cells into the initial retinal structure for transplantation, and implanted them into the eyes of the elderly.

    This operation has been successfully completed in the past two years, but the specific effect of the transplantation still needs long-term observation.  Because in medicine, the success of the operation is not the moment when you leave the ward.

    All of this is scientific.  But it's still an uncertain unknown.

    In contrast, Chu Lihua's method of acting has indeed been successfully used.

    ?In contrast, the method Chu Lihua chose was not tossing around like a dead horse acting like a living horse doctor.  Moreover, it has also seen the effect on her.

    And that scientific method is now in the experimental stage; at the same time, it needs sufficient financial support to be possible.  "(Remember this site URL: www.hlnovel.com
Didn't finish reading? Add this book to your favoritesI'm a member and bookmarked this chapterCopy the address of this book and recommend it to your friends for pointsChapter error? Click here to report