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Spending long periods in space, and effects on the brain, suggests a study.
The study, led by a team of neuroscientists from the University of Antwerp in Belgium and Ludwig-Maximilians-University (LMU) of Munich, showed that the difference in the volume of the brain the end of their last mission.
"Our results point to prolonged changes in the pattern of cerebrospinal fluid flow over a period of at least seven months following the return to Earth," said professor Peter Zu Eulenburg from the LMU.
"However, whether or not the extensive alterations shown in the gray and white matter remains unclear at present," he added.
The study, reported in the New England Journal of Medicine, was conducted on the International Space Station (ISS).
The magnetic resonance tomography (MRT) scans performed in the days after the return to Earth revealed that the volume of the gray matter was reduced compared to before launch.
Seven months later, this effect was still reversed, but still still detectable.
In contrast, the volume of the fluid cerebrospinal fluid, which fills the inner and outer cavities of the brain, increased within the cortex during long-term exposure to microgravity.
Further, the white matter tissue volume appeared to be unchanged upon investigation immediately after landing.
Aim, the subsequent examination.
In this case, the team postulates that the effect of an influx of cerebrospinal fluid.
Upon return to Earth, this process is then gradually reversed, which then results in a relative reduction of white matter volume.
According to the researchers, further studies using a wide range of diagnostic methods are deemed essential, to minimize the risks associated with long-term missions and to characterize any clinical significance of the findings.
–IANS
vc / ksk
(This story has been edited by Business Standard staff and is self-generated from a syndicated feed.)
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