Navigation Links
Deep-space travel could create heart woes for astronauts
Date:4/7/2011

Astronauts anticipate more trips to the moon and manned missions to Mars. But exposure to cosmic radiation outside the Earth's magnetic field could be detrimental to their arteries, according to a study by University of Alabama at Birmingham researchers published April 6, 2011, online in the journal Radiation Research.

Using an animal model, researchers assessed the affect of iron ion radiation commonly found in outer space to see if exposures promoted the development of atherosclerosis, as terrestrial sources of radiation are known to do. They observed that cosmic radiation accelerated the development of atherosclerosis, independent of the cholesterol levels or circulating white blood cells of the mice. It also worsened existing atherosclerotic lesions.

"It's well known that prolonged exposure to radiation sources here on Earth, including those used in cancer treatment, excessive occupational exposure and atomic bombs, are associated with an increased risk for atherosclerosis," said Dennis Kucik, M.D., Ph.D., associate professor in the UAB Department of Pathology. "But cosmic radiation is very different from X-rays and other radiation found on Earth. The radiation risks of deep-space travel are difficult to predict, largely because so few people have been exposed."

Accelerated ions in cosmic radiation interact differently with objects and people, Kucik said.

X-rays can be blocked by lead shields; however, cosmic radiation ions can become more dangerous when they interact with metals, generating secondary particles that also may have biological effects. Although it is possible to use other materials to shield against ion radiation, incorporating these into spacesuits presents significant challenges.

The only people who have been exposed to high levels of cosmic radiation are the 24 astronauts who have been to the moon as part of NASA's Apollo missions in the late 1960s and early 1970s. Kucik said because many
'/>"/>

Contact: Jennifer Lollar
jpark@uab.edu
205-934-3888
University of Alabama at Birmingham
Source:Eurekalert

Page: 1 2 3

Related medicine news :

1. Jion Beijing Great Wall International Travel Agency Immediate Exposure to China Expo 2010
2. UQ research shows canecutters disease on the rise among travelers
3. 57 Year-Old Grandmother Travels to Atacama Desert to Run First of Four Ultramarathons for Charity
4. Travel to 10 Best Eco-Adventure Destinations in India with Thrillophilia
5. HealthTraveler™ is World's First Mobile App for Medical Tourism
6. Abington Memorial Hospital's Travelers Clinic Can Protect Travelers From The Now Active Yellow Fever
7. Just in Time for Spring Break 2010, AssistCard Mexico Launches Concierge-style Health and Security Services for Travelers to Mexico
8. Just in Time for Spring Break 2010, AssistCare Mexico Launches Concierge-style Health and Security Services for Travelers to Mexico
9. Genealogical tourism redefining leisure travel market, professor says
10. Air Travel Could Raise Risk for Heartbeat Irregularities
11. Spring Break Travel Begins with iTriage
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/25/2014)... Background: , In 1998 Bob Savage founded ... pioneer in the field of establishing recovery community organizations. ... and when he retired, he set out to answer a ... , 1. Where are the people in ... , 2. Can the recovery community be organized to advocate ...
(Date:10/25/2014)... 25, 2014 QueenBeeTickets.com has a variety ... selection at affordable prices. Bob Seger & The Silver ... and Nationwide Arena are going on sale October 25 ... Here to browse the selection of tickets for ... , The famous singer is touring North America beginning ...
(Date:10/25/2014)... CT (PRWEB) October 25, 2014 Limbkeepers® ... upcoming episode of Innovations with Ed Begley Jr, airing ... times TBA. , In this episode, Innovations will focus ... helping to protect fragile, thinning skin on arms, hands, ... will learn about these versatile products, which help reduce ...
(Date:10/25/2014)... -- Researchers who discovered antibiotics in farmed and ... concern. The use of antibiotics in animals, ... contribute to the development of antibiotic-resistant bacteria that ... the study. Each year in the United ... and kill about 23,000, according to the Infectious ...
(Date:10/25/2014)... (HealthDay News) -- October,s shorter, darker days can trigger ... according to an expert. People affected by ... tired, lack motivation and even have trouble getting out ... suicide, said Dr. Angelos Halaris, a professor in the ... Chicago Stitch School of Medicine. "Seasonal affective disorder ...
Breaking Medicine News(10 mins):Health News:CCAR Accepting Nominations for the Bob Savage Recovery Advocate of the Year Award 2Health News:QueenBeeTickets.com Features Bob Seger & The Silver Bullet Band Tickets for Charleston Civic Center, Huntington Center, and Nationwide Arena at Reduced Prices 2Health News:Upcoming Episode of Innovations with Ed Begley, Jr. to Feature Limbkeepers® 2Health News:Researchers Say Antibiotics in Fish a Health Concern 2Health News:Dark Days Here for Folks With Seasonal Depression 2
... Pediatric Dengue Vaccine Initiative (PDVI), a program of the ... announced today their partnership to help develop and make ... of Dengue fever, the second most widespread tropical disease ... to which over 2 billion people are exposed and ...
... scientists at Dartmouth Medical School and Dartmouth College, have ... changing muscle metabolism and performance. // The researchers are ... of muscle diseases. , ,The researchers ... (or AMPK) is responsible for realizing the best muscle ...
... While kidney failure is a serious condition that ... these patients are prone to developing another grave ... Fibrosing Dermopathy (NSF/NFD). // First recognized as a ... or tightening of the skin, resulting in pain, ...
... after menopause, a change thought to be due, in part, ... // ,Now, research from the University of Michigan ... certain memory functions. In a study in the new issue ... that a group of postmenopausal women showed more brain activity ...
... who are overweight or obese have increased blood pressure ... risk of kidney damage previously found in this group ... at the American Society of Nephrology's 39th Annual Meeting ... demonstrated that filtration pressure in the kidney was higher ...
... two animal caretakers sent letters to city, state and federal ... not stringent //enough in treating waste from animals that died ... disease before it was sent to the city's sewage treatment ... request of the federal and city officials to study the ...
Cached Medicine News:Health News:Pediatric Dengue Vaccine Initiative and Hawaii Biotech Partner Against Dengue Fever 2Health News:Dartmouth researchers zero-in on a gene that heightens muscle performance 2Health News:Dermatologists Provide Unique Evidence of Possible Cause of Rare Skin Condition 2Health News:Hormone Therapy May Improve the Trip Down Memory Lane 2Health News:Kidney Blood Flow May Explain Increased Long-Term Risks for Obese Kidney Donors 2Health News:Complaints Against US Federal lab Over-ruled by Panel 2
(Date:10/22/2014)... -- Moms are ready to live the "measured life" ... kids, according to the results of the BabyCenter® U.S. ... for Moms, the latest installment in BabyCenter,s 21 st ... and parenting web and mobile destination worldwide, conducted the ... say they can,t think of a reason not to ...
(Date:10/22/2014)... Oregon , October 22, 2014 ... "Global Disposable Gloves Market (Product type, Form, End user, ... Profiles, Demand, Insights, Analysis, Research, Report, Opportunities, Segmentation and ... global disposable gloves market. Based on key trends tracked, ... be valued at $7.9 billion by 2020, registering a ...
(Date:10/22/2014)... -- Oramed Pharmaceuticals Inc. (NASDAQCM: ORMP) ... focused on the development of oral drug delivery ... its Phase IIa clinical trial of ORMD-0801, the ... 1 diabetes. The trial was conducted in ... Food and Drug Administration (FDA) Investigational New Drug ...
Breaking Medicine Technology:BabyCenter Finds Mom Ready to Live the "Measured Life" in its U.S. Mobile Mom 2014 Report: Health & Fitness Go Mobile for Moms 2BabyCenter Finds Mom Ready to Live the "Measured Life" in its U.S. Mobile Mom 2014 Report: Health & Fitness Go Mobile for Moms 3BabyCenter Finds Mom Ready to Live the "Measured Life" in its U.S. Mobile Mom 2014 Report: Health & Fitness Go Mobile for Moms 4Global Disposable Gloves Market Expected to Grow to $7.9 Billion by 2020 - Allied Market Research 2Global Disposable Gloves Market Expected to Grow to $7.9 Billion by 2020 - Allied Market Research 3Global Disposable Gloves Market Expected to Grow to $7.9 Billion by 2020 - Allied Market Research 4Oramed Pharmaceuticals Reports Positive Top-Line Data from U.S. Phase IIa Trial with Oral Insulin in Type 1 Diabetes 2Oramed Pharmaceuticals Reports Positive Top-Line Data from U.S. Phase IIa Trial with Oral Insulin in Type 1 Diabetes 3Oramed Pharmaceuticals Reports Positive Top-Line Data from U.S. Phase IIa Trial with Oral Insulin in Type 1 Diabetes 4
...  Brainlab, a leader in software-driven medical technology, announced today ... at the University of California San Francisco (UCSF) Medical ... advanced neurosurgery procedures to help detect and remove brain ... is one of the top hospitals in the nation ...
... 2012  Lilly Diabetes and Walgreens are educating people ... common and misunderstood consequences of diabetes: hypoglycemia (low ... campaign at 43 Walgreens pharmacies throughout the Indianapolis ... about hypoglycemia that pharmacists may use when counseling ...
Cached Medicine Technology:UCSF Medical Center Treats Patients with New Brainlab Curve™ Image Guided Surgery 2UCSF Medical Center Treats Patients with New Brainlab Curve™ Image Guided Surgery 3Lilly Diabetes and Walgreens Launch Diabetes Hypoglycemia Awareness Campaign 2Lilly Diabetes and Walgreens Launch Diabetes Hypoglycemia Awareness Campaign 3
Lead filled and faced bone mallet used to exert force on osteotomes, chisels, and gouges....
Straight curette with hollow handle and round cup....
Coarse rasp....
Rasp with down cutting pattern....
Medicine Products: