• Contact us
  • Advertising Policy
  • Cookie Policy
  • Disclaimer
  • Privacy Policy
  • Terms of Use
Friday, June 27, 2025
32 °c
Agartala
enewstime
  • Home
  • News
    • Northeast
    • National
    • International
    • Tripura News
  • Sports
    Bazball Brilliance: England Chase 371 to Stun India in Anderson-Tendulkar Trophy

    Bazball Brilliance: England Chase 371 to Stun India in Anderson-Tendulkar Trophy

    Cricket World Mourns: Former India Spinner Dilip Doshi Passes Away at 77

    Cricket World Mourns: Former India Spinner Dilip Doshi Passes Away at 77

    Headingley Test: England Face 350-Run Chase as Rahul, Pant Centuries Set Up Thrilling Test Finish

    Headingley Test: England Face 350-Run Chase as Rahul, Pant Centuries Set Up Thrilling Test Finish

    Rishabh Pant Rewrites Records with Twin Tons at Headingley

    Ind vs Eng 1st Test: Rishabh Pant Rewrites Records with Twin Tons at Headingley

    Rahul takes India’s lead to 96 runs after Bumrah’s fifer keeps England to 465

    Ind vs Eng 1st Test: Rahul takes India’s lead to 96 runs after Bumrah’s fifer keeps England to 465

    Ind vs Eng Test 1: Josh Tongue Stars as India Crumble from 430/3 to 471 All Out

    Ind vs Eng Test 1: Josh Tongue Stars as India Crumble from 430/3 to 471 All Out

    Stokes’ Decision Right, Execution Wrong

    IND vs Eng 1st test: Stokes’ Decision Right, Execution Wrong, Says Broad After India’s Batting Blitz

    Anderson-Tendulkar Trophy: Gill, Jaiswal Lead India's Charge with Centuries at Headingley on Day 1

    Anderson-Tendulkar Trophy: Gill, Jaiswal Lead India’s Charge with Centuries at Headingley on Day 1

    Ind vs Eng 1st Test: Jaiswal and Rahul

    Ind vs Eng 1st Test: Jaiswal and Rahul Rewrite History with Record-Breaking Stand at Headingley

  • Business
  • Entertainment
  • Health
  • Features
  • TendersNew
No Result
View All Result
  • Home
  • News
    • Northeast
    • National
    • International
    • Tripura News
  • Sports
    Bazball Brilliance: England Chase 371 to Stun India in Anderson-Tendulkar Trophy

    Bazball Brilliance: England Chase 371 to Stun India in Anderson-Tendulkar Trophy

    Cricket World Mourns: Former India Spinner Dilip Doshi Passes Away at 77

    Cricket World Mourns: Former India Spinner Dilip Doshi Passes Away at 77

    Headingley Test: England Face 350-Run Chase as Rahul, Pant Centuries Set Up Thrilling Test Finish

    Headingley Test: England Face 350-Run Chase as Rahul, Pant Centuries Set Up Thrilling Test Finish

    Rishabh Pant Rewrites Records with Twin Tons at Headingley

    Ind vs Eng 1st Test: Rishabh Pant Rewrites Records with Twin Tons at Headingley

    Rahul takes India’s lead to 96 runs after Bumrah’s fifer keeps England to 465

    Ind vs Eng 1st Test: Rahul takes India’s lead to 96 runs after Bumrah’s fifer keeps England to 465

    Ind vs Eng Test 1: Josh Tongue Stars as India Crumble from 430/3 to 471 All Out

    Ind vs Eng Test 1: Josh Tongue Stars as India Crumble from 430/3 to 471 All Out

    Stokes’ Decision Right, Execution Wrong

    IND vs Eng 1st test: Stokes’ Decision Right, Execution Wrong, Says Broad After India’s Batting Blitz

    Anderson-Tendulkar Trophy: Gill, Jaiswal Lead India's Charge with Centuries at Headingley on Day 1

    Anderson-Tendulkar Trophy: Gill, Jaiswal Lead India’s Charge with Centuries at Headingley on Day 1

    Ind vs Eng 1st Test: Jaiswal and Rahul

    Ind vs Eng 1st Test: Jaiswal and Rahul Rewrite History with Record-Breaking Stand at Headingley

  • Business
  • Entertainment
  • Health
  • Features
  • TendersNew
No Result
View All Result
enewstime
  • Home
  • News
  • Sports
  • Business
  • Entertainment
  • Health
  • Features
  • Tenders
Home Knowledge Domain

New threat for human spaceflight: Blood clots in jugular vein

ENEWSTIME Desk by ENEWSTIME Desk
November 22, 2019
in Knowledge Domain, Main
New threat for human spaceflight: Blood clots in jugular vein
30
VIEWS
Share on FacebookShare on Twitter
Washington, November 22,  2019 : While astronauts have been subjected to various health studies to understand the impact of space travel on humans as several private companies prepare for space tourism, a first-of-its-kind study has found something which is not very pleasant: formation of blood clots in jugular vein.

The jugular vein is an important body part because it drains deoxygenated blood from the head and neck. If you block the jugular veins, the pressure in the brain goes up.

The findings may have significant human health implications for civilian spaceflight as well as future exploration-class missions, such as a mission to Mars.

The researchers led by Karina Marshall-Goebel, a senior scientist at NASA, looked to find answers to the question: Is long-duration exposure to weightlessness associated with impaired cerebral venous outflow and increased risk of jugular venous thrombosis?

In this cohort study of 11 International Space Station (ISS) crew members, six crew members demonstrated stagnant or retrograde flow in the internal jugular vein on approximate flight day 50, and one crew member developed an occlusive internal jugular vein thrombus during spaceflight.

The condition normally occurs in the legs, like in air travellers on long-haul flights.

“This cohort study found stagnant and retrograde blood flow in the jugular vein, a newly discovered risk associated with spaceflight,” the researchers wrote.

In two astronauts, blood in the vessel actually started moving in the opposite direction, from the heart toward the head, which is “extremely abnormal” for this vein.

Humans have been flying in space for more than 50 years, yet this is the first report of venous thrombosis during spaceflight.

“Given that the thrombi detected in our study were asymptomatic, it is plausible that undetected thrombi have occurred previously during human spaceflight missions,” Marshall-Goebel said in a paper published in JAMA Network Open.

The team found that in microgravity, crew members were exposed to constant cerebral venous congestion with the potential to develop stagnant venous blood flow.

“Lower body negative pressure may be a promising countermeasure to enhance venous blood flow in the upper body during spaceflight,” she added.

“Our findings highlight the need for a more comprehensive evaluation of bilateral venous hemodynamics during spaceflight, as well as for investigation of countermeasures that can restore vascular physiology to a state similar to that seen in the upright and supine positions on Earth,” the authors wrote.

Another study that examined cell-level cardiac function and gene expression in human heart cells cultured aboard the International Space Station (ISS) for 5.5 weeks, this month found that heart cells are altered in space but return to normal within 10 days on Earth.

Exposure to microgravity altered the expression of thousands of genes, but largely normal patterns of gene expression reappeared within 10 days after returning to Earth, according to a study published in the journal Stem Cell Reports.

“We’re surprised about how quickly human heart muscle cells are able to adapt to the environment in which they are placed, including microgravity,” said senior study author Joseph C. Wu from Stanford University. (IANS)

Tags: Home BannerInternational Space Station (ISS)NASATourism

Related Posts

Eid-al-Adha-India-Bangladesh-Border-Trade
Main

Eid-al-Adha: India-Bangladesh Border Trade to remain suspended

June 5, 2025
Dreaded-Maoist-leader-Basavaraju-among-27-killed-in-Chhattisgarh-encounter
Main

Dreaded Maoist leader Basavaraju among 27 killed in Chhattisgarh encounter (Lead)

May 22, 2025
Indo-Pak Tension: How Tripura and NE States Are Supporting Students
Main

Indo-Pak Tension: How Tripura and NE States Are Supporting Students

May 10, 2025
POs-of-Bihar-State-Administrative-Services-visit-Jampui-Hill-under-North-Tripura
Main

POs of Bihar State administrative service tour Jampui Hill during exposure visit

May 8, 2025
Biodiversity-and-Sustainable-Development-Potential-of-Northeast-India
Main

Manipur Guv Highlights Biodiversity and Sustainable Development Potential of Northeast India

April 26, 2025
Tripura-CM-directs-SPs-and-DMs-to-remain-vigilant-about-Pakistani-nationals
Main

Tripura CM directs SPs and DMs to remain vigilant about Pakistani nationals

April 25, 2025
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
D-2050 D-2050 D-2050
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT

About us

Enewstime.in is run by an individual – a Journalist by profession of Tripura with the active help of several journos including senior journalists of the State. On top of that, Enewstime.in being a subscriber of IANS news agency, we have plenty of multi-choice topics to offer to our esteemed readers. Enewstime.in is a venture reach global audience from a tiny State Tripura.

Latest News

Tripura Achieves Another Medical Milestone: First Complex Esophageal Surgery Performed at GB Hospital

Former CEC of Bangladesh sent to 3-day police remand

India slams Yunus govt in Bangladesh over demolition of Durga temple

Adopted comprehensive strategies to eliminate drug menace, says Tripura CM

Task Force meet: Improved NE infrastructure to boost regional connectivity, says Mizoram CM Lalduhoma

Splitted, but remained on cordial terms: Malaika Arora wishes ex-boyfriend Arjun Kapoor with a sweet unseen video

Contact us

19, Old Thana Road. Banamalipur. PO. Agartala. Pin code 799001. Tripura (West), India.

Email: enewstime2017@gmail.com

Wa: 8794548041

  • Contact us
  • Advertising Policy
  • Cookie Policy
  • Disclaimer
  • Privacy Policy
  • Terms of Use

© 2025 Designed & Developed with ❤️ by Provibe Media LLP

Welcome Back!

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In
No Result
View All Result
  • Home
  • News
    • Northeast
    • National
    • International
    • Tripura News
  • Sports
  • Business
  • Entertainment
  • Health
  • Features
  • Tenders

© 2025 Designed & Developed with ❤️ by Provibe Media LLP