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The space explorer's body

The space explorer's body

His gut microbiome showed altered bacterial proportions, although the overall bacterial diversity was intact.

Several proteins also changed during the spaceflight.

  • Elevated levels of collagen, a structural protein was seen in his urine. Looking at this measure along with physiological changes—like those observed in Scott’s eyeballs and vascular system—could be a sign that the body was restructuring.
  • Researchers also observed heightened levels of aquaporin 2, a protein that tends to be a marker of dehydration.

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NASA's Study on long term space missions

NASA's Study on long term space missions

NASA conducted a study to assess the biological effects that long term space exploration can have on humans. 

The study was done on a pair of twin astronauts, one on earth as a control and the other after a 1 year long space mission.

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Conclusion

This study was in no way conclusive or predictive, because of the very small sample size(just one pair of twins), a short study period, just to name a couple of reasons.

However, it has given an idea of potential changes to be expected and a foundation for upcoming research in the field of ...

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Gene expression in space

Gene expression in space

Under stressful situations, normally, there is a change in genetic expression.

Accordingly there were changes, but, the unexpected finding was that, these changes in gene expressions, seemed to have accelerated(6 times more) during the latter 6 months of the mission.

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The Question of Aging.

The Question of Aging.

Telomeres, are the “caps” that protect the ends of DNA strands.

On Earth, these telomeres get depleted over the course of a person’s lifetime as each round of DNA replication wears away at them.

However, in space, the findings were contradictory to what the scientists were expecting....

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Introduction

To study the influence of microgravity, radiation and confinement in long-duration spaceflight, NASA selected twins Scott and Mark Kelly for a unique mission. Scott went to space while Mark was chosen as the control to stay on earth for comparison.

The one year long space mission spanned ac...

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Mental state

Mental state

A decline in cognitive efficiency was reported.

NASA had prepared a set of questions to assess various mental state and cognition.

Upon return, even though Scott’s in-flight measures were stable, his “cognitive efficiency,” or his speed and accuracy in completi...

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CURATED FROM

CURATED BY

joelm_saju

A medical student who is interested in the comings and goings of the universe.

Deep space exploration is something which scientists have been aiming for, for a long time. However, among many other technical limitations and complications, biological limitations are also a factor.

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