Fish In Space: Zero Gravity Weakens Bone Structure, Study In ISS Reveals
A study of fish in space reveals the effects of zero gravity in the bone structures of astronauts. Researchers investigate the live imaging of the medaka fish larvae, also known as Japanese rice fish in the International Space Station (ISS). It revealed that microgravity has detrimental effects to bones.
Spaceflights have various negative effects to the human body. Long-term weightlessness in areas with microgravity might lead to muscle atrophy and deterioration of the skeleton. Other negative effects include balance disorders and eyesight disorders. It can also weaken the immune system and make cardiovascular system functions, like production of red blood cells, slower than normal.
In a study published in Scientific Reports, a team of researchers from Japan studied a total of 273 images from a 5x and 20x objective lens. The images showed the overall picture of the medaka chamber using remote real-time live imaging. They studied the fluorescent signals from osteoblasts and osteoclasts of the medaka fish. Osteoblasts are cells that make bone mass while osteoclasts are cells which breaks it down.
The team used a modified fluorescence microscope to observe the samples of fish in space as well as a control group on Earth. Over an eight-day observation period, they found out that the intensity of fluorescent signals of osteoblasts and osteoclasts was significantly higher (up to eight times more) in the fishes in the ISS.
The study concludes that microgravity results to "dynamic alteration of gene expressions in osteoblasts and osteoclast," lead researcher, Akiro Kudo told Photonics Media. "These experiments based on real-time imaging of medaka from Earth and transcriptome analysis could be the prelude to the establishment of a new scientific area of research in gravitational biology," Kudo added.
After the study of bone cells of fish in space, the group plans to find out the effects of microgravity on glucocorticoid receptors (GR) on cells. GR is responsible for regulating the genes which controls the metabolism and immune response. The team plans to use the same live-cell imaging technique.
SpaceX Rocket Launches From Historic NASA Pad
SpaceX has made its third rocket launch so far this year. SpaceX rocket launches from a historic NASA pad.
SpaceX Plans To Send Deadly Superbug To The International Space Station
SpaceX is planning to send a deadly Superbug to the International Space Station in the hopes to further cultivate it to help it develop and turn into a substance for medical purposes. This is a study that is currently being conducted by Anita Goel and her team of researchers.
Not Just Once But Four Times! NASA Gets Busted After It Has Tried To Cover An Alleged UFO For 4 Times; But Why?
As the number of conspiracy theories continus to blow up, what’s the truth behind bizarre claims that NASA has just covered up an alleged alien surveillance of the space station? Why does NASA have to cut off its live video stream for four times? Here’s what authorities have to say
First Findings On NASA's Twin Study On Space Released; Surprises Scientists
NASA's twin study results have been released but further information still needed to be studied further over some time.
UFO On ISS Spotted; NASA Cuts Live Feed
Alien hunters spotted another alleged UFO on ISS livestream. Conspiracy theorists raise speculations of NASA cover-up of alien existence
Guideline On ‘Best Choices’ For Fish Intake In Children; FDA Confirms
A recent federal guideline classifies has classified fish into three categories of safety. This is to aid women who are pregnant, mothers who are breastfeeding and parents of young children in making wise and healthy choices for them and their families.
MORE IN ITECHPOST
A simple, Yet Versatile, New Design for Chaotic Oscillating Circuitry Inspired by Prime Numbers
Researchers at Tokyo Institute of Technology have found a simple, yet highly versatile, way to generate "chaotic signals" with various features. The technique consists of interconnecting three "ring oscillators," effectively making them compete against each other while controlling their respective strengths and their linkages. The resulting device is rather small and efficient, thus suitable for emerging applications such as realizing wireless networks of sensors.
Tip Sheet: Recent Research on How DNA is Read and Copied
Two scientists at the Johns Hopkins University School of Medicine have unraveled aspects of how DNA organizes and preserves genetic information. Newly published research by Cynthia Wolberger, Ph.D., and James Berger, Ph.D., whose labs sit side by side, takes a closer look at how the puzzle pieces of DNA machinery fit together.