עב

עב
EN
عربيه

The effect of space flight on the health of astronauts’ cardiovascular system

Prof. Ran Kornowski
Dr. Yeela Talmor-Barkan
Prof. Eran Segal
Dr. Itamar Machol

Weightlessness in space alters the structure of the heart and the size of its chambers. In addition, exposure to radiation in space can accelerate the onset of Arteriosclerosis (hardening of the arteries) and even cause vascular calcification. Therefore candidates for space travel are required to undergo comprehensive medical examinations of their cardiovascular system. This is an area in which we have already gained experience.

Innovative molecular technologies enable us to identify various states of health in the human body. By thorough examination of biological samples (blood, saliva, urine and stool), we have discovered that a large percentage of the biological materials (metabolites) in the blood stream are the product of bacteria from the microbiome (the total population of bacteria in the human digestive system). The microbiome changes due to being in space and nutritional changes in space. As a result, we expect that the metabolites in the blood of the astronauts flying to space are going to change.

In recent years we have created one of the largest databases in the world comparing cardiac patients with healthy people. Through mathematical models and machine learning, we have characterized metabolic pathways mediated by the gut bacteria, and which are related to the cardiovascular system, which so far have not been known. In the study we are about to conduct in Beilinson Hospital, together with the Weizmann Institute, we will be studying on the astronauts these metabolic pathways we have discovered in “regular” people who are not flying to space. Our research plan is to construct a precise personal metabolic map for each astronaut, based on the microbiome and metabolites from biological samples we will be collecting from the astronauts at various points in time before and after the flight. This metabolic map is going to enable us to assess the change in cardiovascular risk for each astronaut following space flight, and thereby to gain a more comprehensive, precise understanding of the effect of the stay in space on the cardiovascular system.
This is a pioneering, groundbreaking study and we are excited over this opportunity we have been given to collaborate with the Rakia project and with the second Israeli in space - Eytan Stibbe.

Download files
Home Page

Contact us for further questions about the experiment - 

Thank you for Submitting!

“Above us only sky” Ilan Ramon, RIP, 2003

The Rakia Mission is an example of the extraordinary collaboration between a great number of different entities. It is an expression of the values of peace, innovation, leadership and social responsibility. The combination of dreams this mission represents, and the proof that anything is possible - these are a major part of our vision.

Israel ministary of science
Ramon foundation
Israel space Agency
Home page

Our updates will bring you one step closer to space

Thank you for submitting!

Our updates will bring you one step closer to space

Thank you for submitting!

© 2021 Rakia All rights reserved. This website was created with Editor X

Home

Mission Broadcasts

Astronaut looking up

Education

Child practices sciense

Science in Space

Travelogue

All in Space

Art

Our Shop

About

Dragon Spaceship in space

Contact Us

Sun shining behind a planet