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 trophectodermóthe tissue that nourishes the embryo and ultimately contributes to placenta formationówas 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 ")

Bionic Hand Provides 'Lifelike' Sensations, Like Luke Skywalker's
A fictional scene becomes reality in just thirty-five years.

Neural Implant To Treat Memory Loss
'You've got remote storage. How regular is the update?'- Richard Morgan, 2003.

The Claustrum - The Brain's On Off Switch?
'All I have to do is move this switch and he'll recover consciousness...'- John Brunner, 1976.

Beating Mini-Heart Grown In Lab
'Runciter's body contained a dozen artiforgs...'- Philip K. Dick, 1969.

 

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

Survival Seed Vault Low Cost Life Bank
'They existed in the Life Bank, as did virtually every plant...'

PoseiDrone Tentacled Undersea Robot Like HG Wells'
'Its motion was so swift, complex, and perfect that at first I did not see it as a machine...'

Bionic Hand Provides 'Lifelike' Sensations, Like Luke Skywalker's
'Take care, sir.'

Man-Made Space Leaf Creates Oxygen From Water And Light
'What better purifying machine is there than... grass?'

Robot With Broken Leg Learns To Walk Again
Robots that learn to walk again are now on the march.

World's First Android Newscaster (Video)
'The autonomic TV interviewer, camera in its hand, blocked his path.'

Japan Invites Robot Athletes To Gather For 2020 Olympics
It's time we started to get rid of that distinction between metal and flesh, and IC and neuron, don't you think?

CV Dazzle Anti-Surveillance Make-Up
Let's hear it for the vague blur!

LG Display's 18 Inch Flexible OLED Panel Is Awesomely Cool
'...a wide sheet of clear material suddenly flared with light and swirling color.'

Tiniest Microphone Inspired By Fly
'Transmitting to its manipulator, far away now, all that it heard through its ear microphones...'

NASA's Highway In The Sky For Drones
Traffic is everywhere.

Palcohol Powdered Alcohol - Try Or Ban?
'I had a small can of powdered alcohol disguised as tooth powder...'

pd.id Personal Drink ID Device Like Dune 'Poison Snooper'
'The jeweled hands clutching drinks (and the unobtrusive inspections with tiny remote-cast snoopers)...'

Monsieur Bartending Robot
'He poured the liquids into his maw...'

Cities Detect Gunfire Acoustics With ShotSpotter
'Sound trackers on the roof...'

Cruise Automation's 'Highway Autopilot' For $10K
'It cut her out of the stream of vehicles and reduced the speed of her car...'

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.