Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts

Saturday, June 15, 2019

Worshippers in safety hats attend Notre-Dame's first mass since fire

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PARIS (Reuters) - A small congregation in white hard hats attended mass at Notre-Dame Cathedral in Paris on Saturday, the first service since fire devastated the Gothic landmark two months ago.

The Archbishop of Paris Michel Aupetit leads the first mass in a side chapel two months to the day after a devastating fire engulfed the Notre-Dame de Paris cathedral, in Paris, France June 15, 2019. Karine Perret/Pool via REUTERS

Church leaders are keen to show life goes on at the cathedral as donations for rebuilding trickle in.

Less than 10% of the 850 million euros ($953 million) pledged by billionaires, business leaders and others has been received so far, the French government said.

The mass, which commemorates the cathedral’s consecration as a place of worship, was held in a side-chapel left undamaged by the April 15 fire, with attendance limited to about 30 people wearing protective headgear.

Priests in ceremonial garb of white robes and yellow stoles briefly parted with their hard hats during the communion.

“It is with much emotion that we are here to celebrate the consecration of the cathedral,” said Paris’s archbishop Michel Aupetit, who led the service.

“It is a message of hope and thanks to all those who were moved by what happened to this cathedral,” he added, acknowledging afterwards it was “a bit strange” to celebrate mass with a helmet.

The service was broadcast live on a religious TV channel that showed poignant images of the blue sky through the collapsed roof and the black rubble still clogging the building.

On Friday, France’s Culture Minister Franck Riester said the cathedral was still in a fragile state, especially the vault.

The blaze caused the roof and spire of the architectural masterpiece to collapse, triggering worldwide sadness.

Among those who promised to donate to the rebuilding effort were luxury goods tycoons Bernard Arnault and François-Henri Pinault.

“There could be people who promised to donate then in the end did not,” Riester told France 2 television, without giving further details. “But more importantly, and this is normal, the donations will be paid as restoration work progresses.”

President Emmanuel Macron has set a target of five years for restoring the cathedral, though Riester was more cautious.

“The president was right to give a target, an ambition,” he said. “But obviously what matters in the end is the quality of the work. So it does not mean that work will be totally finished in exactly five years.”

($1 = 0.8923 euros)

Editing by Helen Popper and Mike Harrison

Our Standards:The Thomson Reuters Trust Principles.


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Ancient Afghan citadel collapses, cultural heritage sites at risk

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GHAZNI, Afghanistan (Reuters) - An ancient tower dating back 2,000 years in the historic Afghan city of Ghazni collapsed this week, local officials said, raising concerns about the vulnerability of the country’s cultural heritage and the government’s ability to protect them.

The old citadel known as Ghaznain Fort originally had 36 towers, but 14 of the towers had collapsed in recent years due to decades of war, heavy rain and neglect.

The fort is one of dozens of unique historic sites in Afghanistan - ranging from the pre-Islamic Buddhist center in the Bamyan valley to the 12th century minaret of Jam in a remote area of Ghor province - in urgent need of protection.

Officials in Ghazni, which nearly fell to the Taliban last year in some of the heaviest fighting seen in the war, said the tower collapsed on Tuesday following heavy rain. A short video posted on social media shows it crumbling but local residents say negligence also contributed to its collapse.

“The government paid no attention to the sites and didn’t build canals to divert flood water,” said Ghulam Sakhi, who lives near the citadel.

“We have warned the government about the dire condition of the citadel but no one visited,” Sakhi said.

Mahbubullah Rahmani, acting director of culture and information in Ghazni, said heavy rain and recent fighting had contributed to the tower’s collapse but said the government was working on a plan to protect the site from complete destruction.

He said a German archaeologist had worked at the site as recently as 2013.

Ghazni, a strategically vital center on the main highway between Kabul and southern Afghanistan and two hour drive from the capital, is home to a range of cultural and archeological artifacts, some of which date back to pre-Islamic period.

The province and its cultural heritage was officially declared as Asian Capital of Islamic Culture in 2013 by the Islamic Educational, Scientific and Cultural Organization, a Morocco-based body created in 1981, supported by UNESCO.

The collapse of the tower in Ghazni follows concern over the condition of the 900-year-old Minaret of Jam, in Ghor, which has been on the UNESCO List of World Heritage Properties in Danger since 2002.

The Taliban during their austere regime from 1996-2001, before they were toppled by the U.S. and coalition force in late 2001, blew up two giant Buddha statues in central Bamiyan province, calling them idols.

Additional reporting by Hamid Shalizi in KABUL and Jalil Ahmad Rezayee in HERAT; Writing by Hamid Shalizi; Editing by Michael Perry

Our Standards:The Thomson Reuters Trust Principles.


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Thursday, June 13, 2019

Father's smoking during pregnancy tied to asthma in kids

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(Reuters Health) - Children who are exposed to tobacco smoke from their fathers while they’re in the womb may be more likely than those who are not to develop asthma by age 6, according to a study of chemical changes to DNA.

While prenatal smoke exposure has long been linked to an increased risk of childhood asthma, the current study offers fresh evidence that it’s not just a pregnant mother’s smoking that can cause harm.

Researchers followed 756 babies for six years. Almost one in four were exposed to tobacco by fathers who smoked while the child was developing in the womb; only three mothers smoked.

Overall, 31% of kids with fathers who smoked during pregnancy developed asthma by age 6, compared with 23% of kids without fathers who smoked, the study found.

Asthma was also more common among kids whose fathers were heavier smokers, senior study author Dr. Kuender Yang of the National Defense Medical Center in Taipei said by email.

“Children with prenatal paternal tobacco smoke exposure corresponding to more than 20 cigarettes per day had a significantly higher risk of developing asthma than those with less than 20 cigarettes per day and those without prenatal paternal tobacco smoke exposure,” Yang said.

About 35% of the kids with fathers who were heavier smokers developed asthma, compared with 25% of children with fathers who were lighter smokers and 23% of kids with fathers who didn’t smoke at all during pregnancy.

Smoking by fathers during pregnancy was also associated with changes in methylation - a chemical code along the DNA strand that influences gene activity - on portions of genes involved in immune system function and the development of asthma.

Researchers extracted infants’ DNA from cord blood immediately after birth and examined methylation along the DNA strand. The more fathers smoked during pregnancy, the more methylation increased on stretches of three specific genes that play a role in immune function.

Children who had the greatest methylation increases at birth, affecting all three of these genes, had up to almost twice the risk of having asthma by age 6 as other kids in the study.

While smoking by fathers during pregnancy was linked to childhood asthma, it didn’t appear to impact children’s sensitivity to allergens or total levels of IgE, an antibody associated with asthma.

This suggests that the risk of asthma from tobacco exposure is unlike allergic asthma, which is driven by allergies or allergic sensitization via IgE antibody, said Dr. Avni Joshi, a researcher at the Mayo Clinic Children’s Center in Rochester, Minnesota, who wasn’t involved in the study.

The study wasn’t designed to prove whether or how prenatal smoking exposure might directly cause so-called epigenetic changes, or how those changes cause asthma in children.

It’s not yet clear how the alterations seen along the DNA strand where methylation increased might cause asthma, the study team notes in Frontiers in Genetics.

Still, the message to parents should be clear, Joshi said by email.

“Smoking is bad at ANY point in time: before the baby is born and after the baby is born,” Joshi said. “Many parents defer quitting until the baby is born, but this study stresses that the prenatal exposure to tobacco creates changes to the unborn child’s immune system, hence it is best to quit as a family decides to have children, even before the conception happens.”

SOURCE: bit.ly/2WG9lhM Frontiers in Genetics, online May 31, 2019.

Our Standards:The Thomson Reuters Trust Principles.


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GSK signs up gene-editing pioneers in drug discovery alliance

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(Reuters) - British drugmaker GSK said it has struck a research deal with the early pioneers of a prominent gene-editing technology at the University of California, in a boost to its prospects for developing new drugs.

GlaxoSmithKline, Britain’s largest drugmaker, will pay up to $67 million over a five-year period for the new Laboratory for Genomics Research, which will be jointly run with the University of California and led by researchers such as Jennifer Doudna, a co-inventor of the CRISPR gene-editing technology.

New gene editing tools - with CRISPR/Cas9 as the most prominent example - have thrown the door wide open for rearranging the genetic code much more precisely and at lower costs than previously possible.

The technology made headlines last year when a Chinese scientist caused outrage with a claim to have “gene-edited” babies, but CRISPR/Cas9 can also be used in medical and agricultural research without interfering with the human germline.

CRISPR works as a molecular scissors that can trim away unwanted pieces of genetic material and replace them with new ones. Easier to use than older techniques, it has quickly become a preferred method of gene editing in research labs.

The new GSK lab will run tests on various irregularities in the human genome and track the malfunctions they trigger in cells, hoping to gain a clearer understanding of the causes of cancer as well as neurological and immunological diseases.

“Once we understand how that changes its function, we can think about how to mitigate that functional impairment and normalize the cell, and normalize, hopefully, the patient by just developing a drug that could prevent them from developing the disease,” said GSK’s Chief Scientific Officer Hal Barron.

GSK, which had hired Barron from Alphabet-backed biotech firm Calico in 2017, will become more dependent on its drug development fortunes as it prepares to fold its consumer health business into a joint venture with Pfizer that will be separately listed.

Automation and heavy-duty computing will allow researchers to analyze hundreds of millions of genetic combinations per experiment at the new lab, Barron added.

The University of California in February scored a victory in a drawn-out legal battle with the Cambridge, Massachusetts-based Broad Institute over the CRISPR patent application that Doudna filed together with Emmanuelle Charpentier of the University of Vienna in 2012.

The new lab in San Francisco will include facilities for 24 full-time university employees funded by GSK plus up to 14 full-time GSK staff.

Other pharma companies are investing in the new method. Bayer and Vertex Pharmaceuticals have independently established collaborations with CRISPR Therapeutics, a biotech firm working on gene therapies.

For GSK, the California lab project ties in with existing data-driven alliances in genetic research with Alphabet-funded gene testing company 23andMe, or with the UK Biobank, a genetic database project.

Additional reporting by Michael Erman in New York, editing by Deepa Babington

Our Standards:The Thomson Reuters Trust Principles.


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