Time in Space Transforms Gene Expression, NASA Says

17 Marcha, 2018, 06:12 | Author: Kelly Blake
  • Mark and Scott Kelly. 

A trip to Mars, for example, could mean astronauts spending at least 3 to 4 years in space.

NASA's preliminary results expose that astronaut Scott Kelly's genetic expression did not return to baseline after his arrival to Earth.

Scott Kelly spent 340 days aboard the International Space Station between 2015 and 2016.

According to NASA, Johns Hopkins researcher Andy Feinberg, one of 10 investigators on the Twins Study, observed variability in patterns of methylation - the process by which genes are chemically turned on and off. Chris Mason of Weill Cornell Medicine reported epigenetic changes in five biological pathways, including those related to oxygen deprivation, DNA fix and bone formation.

Still twins? Astronauts Mark, left, and Scott Kelly.

"We do not yet clearly understand how the space environment fully affects the human body", Pitt said on CBSN, "and of those changes, how do we mitigate them and can we see a correction if we come back to a normal Earth environment?"

Some of the most exciting things that we've seen from looking at gene expression in space is that we really see an explosion, like fireworks taking off, as soon as the human body gets into space. "This likely is within the range for humans under stress, such as mountain climbing or scuba diving". Reports included data on what happened to Scott Kelly, physiologically and psychologically, while he was in space, and compared the data to Mark Kelly, as a control subject on Earth.

More news: Texas Tech meets Stephen F. Austin in dream matchup
More news: Broadcom withdraws Qualcomm offer after Trump blocks bid
More news: Shadow of the Tomb Raider Set To Be Released Later This Year

What changed in Scott was the way his DNA was transcribed and translated into functional products; the study of such shifts is called epigenetics.

"The two are still very much identical twins", Holm said.

The media told a different story this week, however, as various news sources proclaimed that a fourteenth of Kelly's genetic code had mutated during his time off-planet.

MCCAMMON: That's Christopher Mason from Weill Cornell Medicine. Kelly's transformation suggests longer-term alterations related to at least five biological pathways and functions. "NASA and the other researchers collaborating on these studies expect to announce more comprehensive results on the twins studies this summer". Seven percent of Kelly's gene expression experienced change that did not return to preflight expression after six months back on Earth, based on results published January 31.

MASON: We saw some genes that were activated while he was in space. However, a more pronounced decrease in speed and accuracy was reported postflight, possibly due to re-exposure and adjustment to Earth's gravity, and the busy schedule that enveloped Scott after his mission.

Some outlets, including Ars Technica, The Verge and National Geographic, spotted and combated the misinformation that had been spreading. His twin brother, a retired astronaut, Mark Kelly back on earth.



Canadians are Playing PUBG on Mobile, And You Can Too
The Android version of the game requires Android 5.1.1 or above and at least 2 GB of RAM, according to the game's listing. While there is still no official comment, it would seem a soft launch of the game has begun in the West.

Por qué ya no hay GIFs en Instagram y Snapchat
Un portavoz de Instagram señaló que "este tipo de contenido no tiene cabida". Giphy es una adición muy nueva a ambas plataformas de redes sociales .

Hakoora encounter: Third militant was from Hyderabad, claims outfit
The letter further stated that it had been circulated in social media that one terrorist among the three was from Hyderabad . Three terrorists were killed in the encounter and illegal arms and ammunition were also seized from them.

'The View' host Joy Behar apologizes for Christianity comment
Following the clip, Behar came on camera and said, "I think Vice President Pence is right". "She picked up the phone. Her comments launched a protest that made it all the way to a shareholder's meeting of ABC parent Walt Disney Corp.

En vivo: Barcelona, con Messi, empata con el Chelsea por Champions
Esta vez fue Chelsea quien lo sufrió y desde el comienzo. Y cuando el juego comenzó, el Rey debidamente entregado. Pero no debió haberse preocupado.

Voter angry with BJP: Rahul
Both CPI and CPI (M) also shared dinner table with Trinamul, putting aside their rivalry in West Bengal. Mani, Jharkhand Vikas Morcha-Prajatantrik's Babulal Marandi, Revolutionary Socialist Party's N.

Manish Pandey Enjoying Finisher's Role in Nidahas Trophy
Earlier, India won the toss and chose to bowl in what turned out to be a 19-overs-a-side affair due to a 60-minute delayed start. Score, India 153-4 from 17.3 overs ( Dinesh Karthik 39*, Manish Pandey 42*; Akila Dananjaya 2/19), beat SL by 6 wickets .

Statement on The Passing of Pelicans Owner Tom Benson
The Saints are the 27th-most valuable franchise in the National Football League at $2 billion according to Forbes as of 2017. Born July 12, 1927, Thomas Milton Benson Jr. was raised in New Orleans' 7th Ward, graduating from what was then known as St.

American Idol: David Francisco Opened For Alicia Keys' The Voice Winner
I mean, can you blame her? Despite her fall, Katy took the embarrassing moment like a champ and laughed it off. When the teen showed his cheek for a peck Perry, turned his face towards her and kissed him on his lips.

Kane will play again this season says Pochettino
An ankle injury, suffered in November, has disrupted his season and his last three appearances have come in the FA Cup . But in the same way we're calm and relaxed, because we have quality enough to play and win games.