Navigation Links
Fallout from nuclear testing shows that the Achilles tendon can't heal itself

Bethesda, MDNotorious among athletes and trainers as career killers, Achilles tendon injuries are among the most devastating. Now, by carbon testing tissues exposed to nuclear fallout in post WWII tests, scientists have learned why: Like our teeth and the lenses in our eyes, the Achilles tendon is a tissue that does not repair itself. This discovery was published online in The FASEB Journal.

"Tendon injury is a very common disease, which hinders many people from enjoying the numerous benefits of sports and recreational activities," said Katja Heinemeier, Ph.D., a researcher involved in the work from the Institute of Sport Medicine and Center for Healthy Aging at the University of Copenhagen in Denmark. "We hope that these new results will provide the essential knowledge necessary for the development of effective treatments of tendon diseases."

Heinemeier and colleagues made this discovery by taking advantage of carbon-14 spikes resulting from post WWII nuclear bomb tests. Because of these tests, there was there was a large release of the radioactive carbon-14 (radiocarbon) to the atmosphere between 1955 and 1963. This sudden rise in carbon-14 called the "bomb pulse" reached a maximum of twice the natural atmospheric level in 1963, and then gradually dropped to the lower levels over time. This variation is reflected in all human tissue, because humans eat plants (and animals fed on plants) that take up carbon-14 from the atmosphere. Researchers studied the Achilles tendons from people who had lived during the carbon-14 bomb pulse peak, and found that the high carbon-14 levels of this period had remained in the tendon tissue for decades after. This persistence of radiocarbon can only be explained by the fact that the rate of tissue renewal is extremely slow in the tendon, if it exists at all. In fact, the results showed that the Achilles tendon stays the same after growing ends. In comparison, muscle tissue from the same persons had been constantly renewed and contained no "memory" of the radiocarbon.

"While the nation waits to see if another Olympic skier or NFL rookie recovers from serious tendon or ligament damage, this report serves as a cautionary tale to temper expectations," said Gerald Weissmann, M.D., Editor-in-Chief of The FASEB Journal. "When it comes to our tendons, what we have may be all we have. Like our teeth, it's far better and less painful in the long term to protect them throughout your lifetime than it is to count on a successful recovery."


Contact: Cody Mooneyhan
Federation of American Societies for Experimental Biology

Related biology news :

1. Military vision research symposium focuses on visual fallout from war
2. Biologists map rare case of fitness-reducing interaction in nuclear, mitochondrial DNA
3. How to make stem cells - nuclear reprogramming moves a step forward
4. University of Tennessee, ORNL lead national team to study nuclear fusion reactors
5. Glass offers improved means of storing UKs nuclear waste
6. Fueling nuclear power with seawater
7. Stanford researchers calculate global health impacts of the Fukushima nuclear disaster
8. Nuclear weapons surprising contribution to climate science
9. Where to put nuclear waste?
10. Researchers at GW receive federal funds to study the effect earthquakes have on nuclear reactors
11. Autologous bone marrow-derived mononuclear cell transplants can reduce diabetic amputations
Post Your Comments:
(Date:6/9/2016)... an innovation leader in attendance control systems is proud to announce the introduction of ... make sure the right employees are actually signing in, and to even control the ... ... ... ...
(Date:6/7/2016)... , June 7, 2016  Syngrafii Inc. ... a business relationship that includes integrating Syngrafii,s patented ... branch project. This collaboration will result in greater ... the credit union, while maintaining existing document workflow ... ...
(Date:6/2/2016)... June 2, 2016 The Department of ... awarded the 44 million US Dollar project, for the ... Plates including Personalization, Enrolment, and IT Infrastructure , ... the production and implementation of Identity Management Solutions. Numerous renowned ... Decatur was selected for the most ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... SAN DIEGO , June 27, 2016  Sequenom, ... company committed to enabling healthier lives through the development ... Supreme Court of the United States ... Federal courts that the claims of Sequenom,s U.S. Patent ... the patent eligibility criteria established by the Supreme Court,s ...
(Date:6/27/2016)... , ... June 27, 2016 , ... ... bring innovative medical technologies, services and solutions to the healthcare market. The company's ... of various distribution, manufacturing, sales and marketing strategies that are necessary to help ...
(Date:6/27/2016)... --  Ginkgo Bioworks , a leading organism design ... awarded as one of the World Economic Forum,s ... innovative companies. Ginkgo Bioworks is engineering biology to ... in the nutrition, health and consumer goods sectors. ... including Fortune 500 companies to design microbes for ...
(Date:6/24/2016)... ... June 24, 2016 , ... While the majority of commercial spectrophotometers and fluorometers ... the 6000i models are higher end machines that use the more unconventional z-dimension of ... beam from the bottom of the cuvette holder. , FireflySci has developed several ...
Breaking Biology Technology: