Can Humans Reproduce In Zero-Gravity?

New research details biological difficulties in mammalian reproduction and development in space. Teruhiko Wakayama and his colleagues at the RIKEN Center for Developmental Biology in Kobe used a 3D clinostat to conduct experiments with mouse sperm and ova in a microgravity environment.


( The 3D clinostat apparatus )

The 3D clinostat apparatus uses rotation in all three dimensions to enable cell culture experiments under conditions that recreate zero-gravity. This allows research on the earliest stages of embryonic development in an environment that simulates space travel.

They performed in vitro fertilization (IVF) experiments with mouse sperm and ova, both within the clinostat and at regular gravity (1G), and determine that microgravity had minimal effects on fertilization. It may prove detrimental to subsequent development, however. Microgravity-cultured embryos successfully reached the two-cell stage and yielded viable offspring upon implantation into female mice, but at a significantly lower rate than their 1G counterparts. The researchers observed more severe negative effects when embryos were transplanted following longer culture periods in the clinostat.

Microgravity led to an overall reduction in the rate of blastocyst formation after 96 hours of culture, and closer examination of these blastocysts revealed that the differentiation of embryonic cells into trophectoderm—the tissue that nourishes the embryo and ultimately contributes to placenta formation—was markedly impaired.

This finding casts into doubt the science fictional notion that human beings can survive in zero gravity or in the microgravity environment of large asteroids (Belters, I'm talking to you!).

From Riken Research via Medgadget.

Scroll down for more stories in the same category. (Story submitted 11/27/2009)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 2 )

Related News Stories - (" Medical ")

iFlytek Doctor Robot First To Pass Medical Exams
No problem, we'll just use the autodoc.

Watch What People Are Seeing Via Brain Scanning
'had managed to see through the other man's eyes as the other man, all unaware, washed their Zis limousine sixteen hundred meters away...' - Cordwainer Smith, 1958.

PRIMA Bionic Vision Restoration
'The VISOR... was a medical device used in the Federation to aid patients who have suffered loss of eyesight...'

Targeted Neuroplasticity Training For 'Downloading Skills'
'I know kung-fu.'

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

Fungi-Infused Concrete Repairs Itself
'I noticed that curious mottled knots were forming, indicating where the room had been strained and healed faultily.'

Shiftwear Display Shoes
'He unlaced her shoe and glanced at its readout.'

NASA SEXTANT First With X-Ray Nav In Space
'You need at least four beacons for an accurate fix.'

GM Introduces Cruise AV With No Steering Wheel
'How about the steering wheel?' ... 'I do not need one.'

Subsurface Martian Ice Slabs Piece Of Cake For Miners
'One shy little fellow with bloodshot eyes of old-time drillman stood up. 'I'm an ice miner,' he said.'

LG Rollable Version Of Niven's Poster TV
'A television that unrolled like a poster.'

Multi-Robot Farming On Highly Sloped Land
High Plains, indeed.

Aeolus Robot Brings Jetson's Rosie Closer
Domestic duties, robotically performed.

Sony's New, Cuter Aibo Robot Puppy
Engineered to be adorable.

Earth-1 Transformer Gundam Car
Is it a Gundam? Or maybe a Transformer.

Self-Driving Domino's Pizza Car
Yes, but can it negotiate entry at your Burbclave?

I Want Massive Space Freighters!
Ah, the space freighters of old.

When Will The Feds Ban Human Drivers?
'The first laws came out forcing the old machines off the highways...'

Our World Formed In A Bubble?
'The Worldcraft bubble glittered, catching the light...'

Will You Live To See EM Pulse Scattering By Ships Nearing Light Speed?
'...half a million kilometers away, the Stardrive went on.'

Jabil Integrated Textile Heart Monitoring
'Della's first present was an imipolex sweatshirt called a heartshirt…'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.