American scientists recently released a report showing that two American women with AIDS were successfully cured after stem cell transplantation, becoming the first female patient in the world to be cured of AIDS. According to a report by NBC on the 16th, this stem cell transplant therapy will provide a new option for treating more AIDS patients in the future.
The woman, who reportedly suffered from acute myeloid leukemia in addition to AIDS, was treated with a cord blood transplant. Currently, she has been HIV-free for 14 months. Scientists explained that the principle of this therapy is to use other people’s immune systems to replace the patient’s immune system. First, chemotherapy needs to be used to destroy the patient’s immune system, including the diseased immune cells in the patient’s body, and then through transplantation. HIV-resistant stem cells to rebuild a patient’s immune system.
Before this woman, three men had recovered from AIDS through the same therapy. But scientists say that this kind of stem cell transplant therapy is more risky for those who are not seriously ill, and it is not easy to find stem cells that have their own defense against HIV. recovery, so the scope of the therapy is limited, but it also brings new hope to AIDS patients.
East Japan Railway Company began to remove the clocks in various stations in November last year. As of January 26 this year, all clocks at 22 stations have been removed. The company plans to dismantle about 500 clocks over a 10-year period.
East Japan Railway Company said there were two main reasons for the removal of the clock. “The aspect is that the existence value of the clock is greatly reduced. The station clock was used to help passengers keep track of the arrival and departure time of trains, but with the popularity of smartphones, more and more passengers can grasp the time and the situation in the station through smartphones and other means. On the other hand, it is to maintain infrastructure renewal and cut daily operating costs. It is reported that the removal of about 500 station clocks will help the company save about 300 million yen (about 16.45 million yuan) in operating costs each year.
The removal of the clock has also received complaints from many passengers, such as “It is very inconvenient to not be able to grasp the time at the station.” For this, East Japan Railway Company apologized and hoped that passengers would understand the factory
Knowing that most of the children had never seen snow, a kindergarten teacher in Florida asked his sister to send a snowman from Kentucky, further north.
According to the British “Daily Mail” report on the 14th, Robin Hughes, who grew up in Kentucky, was shocked that most children had not seen snow, “Because children have not been exposed to snow, it is difficult to understand its concept. .” Immediately, Hughes texted his sister Estes: “If it snows, would you like to build a snowman and send it to us?”
A few days later, a little snowman was packed in an insulated bag and embarked on a journey of nearly 1,300 kilometers. It is reported that the total postage is 78 US dollars, and the journey is planned to be about 10 days. ‘ Estes said, and if it made it there, the name was ‘Lucky One’.
On January 19, the package arrived smoothly, and Hughes was pleasantly surprised to find that the “lucky one” was almost intact, with only one “eye” that fell off in transit. She said: “I am very excited, the children are really happy after seeing the snowman. Many children want to touch it, and some children ask: Is it alive?'”