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Printing the human body
Printing the human body
Marie Vaton

PARIS — The 3D printing revolution promises to change the very way products are manufactured and sold, across a vast array of sectors. Inevitably this has sparked a race to directly print living cells of human beings. This technology is now available in the US and Japan, dubbed 3D bioprinting, with wide-eyed investors flocking to the market.

Now a French company, led by Fabien Guillemot, has recently developed the first laser 3D bioprinter in the world. "Before our discovery, the 3D bioprinter ran mostly on living ink. Using a laser permits to obtain higher concentrated cell inks which improve the cells communication."

The researcher admits that for the moment he is not able to bio-print an entire arm. "In vitro, we made pieces of human skin and cornea. In vivo, we printed pieces of bones on a living mouse. For now, the most interesting according to the pharmaceutical laboratories is to use print pieces of human skins to test new molecules. It could sign the end of the animal experimentations."

In the future, 3D bioprinting could revolutionize the medical world by allowing a totally individualized medicine based on the genetic heritage of each patient. That technology could allow for example, the production of artificial transplants and decrease the risk of graft rejection.

In this following video, Christopher Barnatt, an associate professor of strategy and future studies at Nottingham University Business School explains how 3D bioprinting could change our lives.


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Economy

In Uganda, Having A "Rolex" Is About Not Going Hungry

Experts fear the higher food prices resulting from the conflict in Ukraine could jeopardize the health of many Ugandans. Take a look at this ritzy-named simple dish.

Zziwa Fred, a street vendor who runs two fast-food businesses in central Uganda, rolls a freshly prepared chapati known as a Rolex.

Nakisanze Segawa

WAKISO — Godfrey Kizito takes a break from his busy shoe repair shop every day so he can enjoy his favorite snack, a vegetable and egg omelet rolled in a freshly prepared chapati known as a Rolex. But for the past few weeks, this daily ritual has given him neither the satisfaction nor the sustenance he is used to consuming. Kizito says this much-needed staple has shrunk in size.

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Most streets and markets in Uganda have at least one vendor firing up a hot plate ready to cook the Rolex, short for rolled eggs — which usually comes with tomatoes, cabbage and onion and is priced anywhere from 1,000 to 2,000 Ugandan shillings (28 to 57 cents). Street vendor Farouk Kiyaga says many of his customers share Kizito’s disappointment over the dwindling size of Uganda’s most popular street food, but Kiyaga is struggling with the rising cost of wheat and cooking oil.

Russia’s invasion of Ukraine has halted exports out of the two countries, which account for about 26% of wheat exports globally and about 80% of the world’s exports of sunflower oil, pushing prices to an all-time high, according to the Food and Agriculture Organization, a United Nations agency. Not only oil and wheat are affected. Prices of the most consumed foods worldwide, such as meat, grains and dairy products, hit their highest levels ever in March, making a nutritious meal even harder to buy for those who already struggle to feed themselves and their families. The U.N. organization warns the conflict could lead to as many as 13.1 million more people going hungry between 2022 and 2026.

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Central to the tragic absurdity of this war is the question of language. Vladimir Putin has repeated that protecting ethnic Russians and the Russian-speaking populations of Ukraine was a driving motivation for his invasion.

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