Tuesday, December 7, 2021

Potential Liver Risks in those Exposed to Zero Gravity Environments

 Although alcohol is not allowed on the international space station, astronauts still have reason to watch their livers. A recent study published in Nature shows potential risks associated with microgravity.The study, led by the University of Tsubuka, Japan, found that mice sent to the International Space Station had their livers stressed out by the time they returned to Earth. If this same factor is also causing risk to astronauts, then it provides a potentially serious problem to fix. But to understand it in humans, it is often easier to assess it first in mice. 

Animal studies are often used to identify potential risks to humans, and find ways to address them. Different model species (E.g. rats, mice,fruit flies, yeast) are used for different research goals. Mice and humans are both mammals so their liver structures are largely similar, and experience stress in many of the same ways. This study found that the oxidative stress of a zero gravity wore down the liver’s antioxidant reserves. By the time they returned to Earth the mice had high levels of gene expression for those related to fighting oxidative stress, and had depleted their antioxidant capacity. The stress was less bad in those mice exposed to artificial gravity, which is a positive sign at least. 

The practical application of this research is very hopeful. The stress caused by microgravity could be mitigated by the use of artificial gravity. Any long term space living would require some form of artificial gravity to combat much of the liver damage, and, according to professor Iwao Ohtsu of the University of Tsubuka, “whereas those caused by other environmental effects could be treated with alternative solutions, such as the addition of dietary supplements to astronauts' diets". With those two factors in mind, hopefully those living in low gravity environments will have one less health worry to deal with.

William Sobchuk (9)


  1. Hi William, this blog post was very interesting. The fact that mice were used in this research reminded me of Grey's Anatomy, in which they used mice to conduct experiments. I always found the use of other animals in research was interesting. I was thinking if astronauts had access to antioxidants in zero gravity, they should do a little better and I'm glad the professor stated that.
    Kristina Baldeo

    1. Hello viewer’s
      I don’t have much to say there are so may scammers going on online so we cant detect the real herbal medicine doctors. Thank GOD for leading me, please don’t ignore this post is real Dr Emmanuel, is a real herbal Doctor, he cured me from Herpes virus, i am living so happy and free , i was fully recovered within 4 weeks of usage of dr Emmanuel herbal medicine ,please viewers out there that have any deadly disease don't fail to contact him via his email; nativehealthclinic@gmail.com or WhatsApp/Call: +2348140073965  thanks once again to dr Emmanuel GOD bless you abundantly  

  2. Hello, this was an interesting article I never thought of such health risks for astronauts before so this was very eye opening.
    - Tugba Kahveci

  3. โปร สล็อต pg slot จากเว็บสล็อตออนไลน์ PG-SLOT.GAME ที่ยกเกมสล็อตออนไลน์จากค่ายดังมาอย่างหลากหลายค่ายเกม เช่น pg slot jili joker และอื่นๆอีกมากมายในเว็บเดียว มาแรง 2022

  4. Pgslot แหล่งรวมสล็อตสุดฮิต โบนัสแตกง่าย 100 % แจก free เครดิต PG เพียงแค่สมัครสมาชิก สามารถเข้าเล่นได้ตลอด 24 ชั่วโมง เล่นง่าย ได้เงินจริง ฝากถอนด้วยระบบออโต้

  5. สล็อตเว็บตรง แตกง่าย สล็อตแตกง่าย เกมพนันออนไลน์ ยอดนิยม สล็อตที่นิยมเยอะที่สุดในตอนนี้เพราะเป็นเกมที่มีแบบอย่างการเล่นที่ง่าย ไม่สลับซับซ้อน ต่างจากพนันอื่นๆ ที่มีข้อตกลงต่างๆมากมาย