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‘Animal-human’ cornea transplant by Chinese doctors

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BEIJING: Doctors of Shandong Eye Institute in China, on Monday, declared  the successful operation of a bio-engineered pig cornea into a human eye.

“The patient’s vision has gradually improved after a three month recovery period, which means the transplant was a success,” said Zhai Hualei, director of Shandong Eye Institute’s cornea division.

Wang Xinyi, 60, was suffering  from  corneal ulcer. He could only see moving objects within 10 cm.

“The doctors originally told me that my father might lose sight in one eye because there are not enough cornea donations,” Wang’s son said.

The transplant used a bio-engineered cornea named Acornea, the first such product to be licensed by the China Food and Drug Administration in April.

“With the pig cornea as the main material, the product is devoid of cells, hybrid proteins, and other antigens. It retains a natural collagen structure with remarkable bio-compatibility and biological safety,” said Zhai.

Cornea diseases are one of the biggest causes of blindness in China. New cases are increasing by 100,000 each year, however, only about 5,000 people receive a cornea transplant annually.

Beijing Tongren Hospital and Wuhan Xiehe Hospital, among others, have been conducting clinical trials of Acornea since 2010, recording a success rate of 94.44 percent, similar to the results seen with donated human corneas.(IANS),(Image: the-newshub.com)

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350 Chinese Cities Get Better Air Quality

In the first three quarters of this year, 7 out of 20 cities with the worst air quality were in northern Shanxi province

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Officials told CNN that the Chinese military did not intercept the US aircraft during their mission.
South China Sea, Pixabay

More than half of China’s cities saw air quality improve year-on-year in September, the Chinese Environment Ministry has said.

The average density of PM 2.5 stood at 25 micrograms per cubic meter in September in 338 cities, down 16.7 per cent from the same period last year, according to the Ministry of Ecology and Environment.

These cities enjoyed good air quality on 90.8 per cent of the days last month, up 2.6 per cent, Xinhua news agency said.

Air Quality
Air pollution can also damage your kidneys. wikimedia commons

The world’s most populous nation has over 600 cities and is grappling with chronic pollution which kills about one million people annually.

China is the world’s biggest coal producer and alone burns half of it, leading to severe pollution. The country is also the largest greenhouse gas emitter in the world.

However, the government has cracked down heavily on the polluting industries, shutting many of them. In July, the government released a three-year action plan to tackle the problem.

It also punishes top officials for not doing enough to rein in pollution.

Beijing is no longer the world’s most polluted city.

Air quality

Air quality
Buildings are seen on a hazy day in Xiangyang, Hubei province, China. VOA.

In the Beijing-Tianjin-Hebei region, the share of days with good air quality in September stood at 79.2 per cent, a year-on-year increase of 27.8 percentage points, while the PM 2.5 density of the region dropped by 33.3 per cent on year to 36 micrograms per cubic meter, the Ministry was quoted by Xinhua as saying.

In the first three quarters of this year, 7 out of 20 cities with the worst air quality were in northern Shanxi province, China’s coal-producing hub.

Also Read: Sundar Pichai Clears Google’s China Centric Plans

According to the action plan released in July, by 2020, emissions of sulfur dioxide and nitrogen oxide should have dropped by more than 15 per cent over the 2015 levels, while cities that fail to meet the requirement of PM 2.5 density should see a decline of more than 18 per cent from 2015 levels. (IANS)

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