Navigation Links
Oregon researchers say supplement cuts muscle loss in knee replacements
Date:10/25/2013

EUGENE, Ore. -- (Oct. 25, 2013) -- Twenty grams of essential amino acids taken twice daily for a week before and for two weeks after knee-replacement surgeries helped 16 patients, mean age 69, recover faster and with much less muscle atrophy than a control group ingesting a placebo.

The approach -- detailed in a paper now online ahead of print in the Nov. 13 issue of the Journal of Clinical Investigation -- could spell relief and speed recovery for a growing population of aging adults who face total knee-replacements because of loss of mobility and pain problems. An estimated 3.48 million Americans are projected to need the surgery, known as total knee arthroplasty (TKA), by 2030.

The findings are part of an ongoing collaboration led by Hans C. Dreyer, a professor of human physiology at the University of Oregon, with the Eugene-based Slocum Research & Education Foundation and the Oregon Research Institute.

Atrophy in the quadriceps, a group of four muscles on the front of the thigh, has been a long-running problem following knee-replacement surgeries, Dreyer said.

In the study, 12 members of a control group receiving 40 grams a day of a non-essential amino acid supplement, a placebo, averaged an 18.4 loss in quadriceps muscle mass in their operated leg six weeks after surgery; those getting the supplement of eight essential amino acids (EEA) averaged a 6.2 percent loss. Eighty percent of atrophy occurred in the first two weeks after surgery. Atrophy in non-operative legs was about 50 percent of that in the operative leg in both groups. Muscle mass changes were seen with magnetic resonance imaging done at two and six weeks after surgery.

"We've learned that the essential amino acids were able to mitigate the amount of muscle loss," Dreyer said. "The functional measures that we looked at -- getting up out of a chair, going up a flight of stairs and going back down the stairs -- were all back to baseline in the t
'/>"/>

Contact: Jim Barlow
jebarlow@uoregon.edu
541-346-3481
University of Oregon
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Oregon Biodiversity Information Center wins 2013 Natureserve Network Collaboration Award
2. Ken Bierly of the Oregon Watershed Enhancement Board to receive ESA Regional Policy Award
3. BUSM researchers identify molecule that could aid lung cancer detection, treatment
4. Researchers identify gene variant that raises risk for colorectal cancer from eating processed meat
5. Researchers show how plants tell the time
6. Berkeley Lab researchers get a detailed look at a DNA repair protein in action
7. Researchers capture images of open channel that moves proteins across cell membranes
8. UAlberta medical researchers discover potential new treatment for colitis
9. Older siblings cells can be passed from female dogs to their puppies in the womb, MU researchers find
10. Nitrogen fertilizer remains in soils and leaks towards groundwater for decades, researchers find
11. Researchers discover innate virus-killing power in mammals
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Oregon researchers say supplement cuts muscle loss in knee replacements
(Date:5/26/2015)... , May 26, 2015 ... the addition of the "Saudi Arabia Biometric ... to their offering. ,     (Logo: http://photos.prnewswire.com/prnh/20130307/600769) , ,The ... is projected to grow at over ... growth is attributed to the surging demand for ...
(Date:5/22/2015)...  NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or the ... its promotional pricing and making the Wocket generally available for ... , Head of Marketing said, "We,ve extended the opportunity to ... of May. To get your wocket at this special price, ... store on June 1, you,ll receive a unique code that ...
(Date:5/21/2015)... 2015 According to a ... (Hardware, Software, Services), by Applications (Surveillance (Airborne, Maritime, ... End-Users (Military & Defense & Commercial) - Global ... Market is expected to grow from $7252.0 Million ... a Compound Annual Growth Rate (CAGR) of 6.6%. ...
Breaking Biology News(10 mins):Saudi Arabia Biometric Systems Market Forecast and Opportunities, 2020 with Morpho Safran, ZK Technlogy, and Suprema Dominating 2NXT-ID, Inc Announces Retail Price For Wocket Smart Wallet And Extends Discounted Promotional Price Till End Of May 2NXT-ID, Inc Announces Retail Price For Wocket Smart Wallet And Extends Discounted Promotional Price Till End Of May 3Thermal Imaging Market Worth $9,998.9 Million by 2020 2Thermal Imaging Market Worth $9,998.9 Million by 2020 3Thermal Imaging Market Worth $9,998.9 Million by 2020 4
... how cells work may get a boost from a new ... The new technique, developed by a research team ... chemistry Lawrence Miller, provides the clearest, most dynamic view yet ... modified microscope. The finding is reported in the ...
... Riverside,s mobile emissions laboratory was back on the road ... Beaumont testing ways to better measure particulates from diesel ... Air Resources Board, a team of UC Riverside researchers ... for Environmental Research and Technology (CE-CERT), are attempting to ...
... Patent Office has issued a patent to Dr. Mark ... University, for his invention of an "Electromagnetic Probe Device" ... for Micromanufacturing. DeCoster, in collaboration with co-inventor Dr. ... New Orleans, developed the device for use in conjunction ...
Cached Biology News:New tagging technique enhances view of living cells 2UC Riverside researchers measure diesel emissions on the freeway 2Louisiana Tech professor, researcher receives patent for electromagnetic technology 2
(Date:5/27/2015)... FRANCISCO, Calif. , May 27, 2015 /PRNewswire/ ... the treatment of cancer, today announced the appointments ... officer and Cynthia Ladd as senior ... CytomX, Goeltz was chief financial officer of Onyx ... as an independent consultant and legal counsel to ...
(Date:5/27/2015)... -- US-Australian drug discovery and development company, Novogen Limited (ASX: NRT; ... at the Brain Tumor Biotech Summit 2015, being held in ... The venue is the Lennox Hill Hospital, East 76 th ... The Brain Tumor Biotech Summit brings together the nation,s top ... community to promote innovative new therapies for brain tumors.  ...
(Date:5/26/2015)... BELLINGHAM, Washington, USA (PRWEB) May 26, 2015 ... a formal partnership with the Max Planck Society ... Extreme and Quantum Photonics. The center will link two ... of photonics, and will be only the third Max ... SPIE, the international society for optics and photonics, ...
(Date:5/26/2015)... , Kalifornien und HILDEN, Deutschland, May 26, ... Clinical Insight ®   ... und die Erstellung dazugehöriger Berichte; Vorstellung auf ... QIAGEN N.V. (NASDAQ: QGEN ... die Markteinführung von QIAGEN Clinical Insight ® ...
Breaking Biology Technology:CytomX Expands Executive Leadership Team 2CytomX Expands Executive Leadership Team 3Novogen to Present at Brain Tumor Biotech Summit 2015 2Novogen to Present at Brain Tumor Biotech Summit 2015 3Novogen to Present at Brain Tumor Biotech Summit 2015 4Novogen to Present at Brain Tumor Biotech Summit 2015 5Third Max Planck Centre in North America Inaugurated at University of Ottawa 2Third Max Planck Centre in North America Inaugurated at University of Ottawa 3QIAGEN bringt klinische Bioinformatik-Plattform für Next Generation Sequencing-Anwendungen auf den Markt 2QIAGEN bringt klinische Bioinformatik-Plattform für Next Generation Sequencing-Anwendungen auf den Markt 3QIAGEN bringt klinische Bioinformatik-Plattform für Next Generation Sequencing-Anwendungen auf den Markt 4QIAGEN bringt klinische Bioinformatik-Plattform für Next Generation Sequencing-Anwendungen auf den Markt 5QIAGEN bringt klinische Bioinformatik-Plattform für Next Generation Sequencing-Anwendungen auf den Markt 6
... with Pfizer,s recently ... MALIBU, Calif., Nov. 15 Pathway Diagnostics announces,that the ... Patent,number 7,294,458 (the ,458 patent) entitled "Analysis of HIV-1 ... Diagnostics,has licensed the ,458 patent (with rights to sub-license) ...
... At a meeting of the,Board of ... ), held today, a dividend of ... outstanding shares of Preferred Stock was,declared ... stockholders of record at the close,of ...
... George Abercrombie, Pfizer R&D Head Martin,Mackay, HHS Deputy Secretary ... Headline Agenda at FDA/CMS Summit 2007, WASHINGTON, Nov. ... for drug approvals. Unfortunately for the biopharma sector and,investors, ... is on track,to grant marketing approval to 18 or ...
Cached Biology Technology:Pathway Diagnostics Announces Patent Issuance for the Diagnostic Measurement of HIV Tropism for the Initiation or Modification of HIV Therapy 2So Long, Old Friend: The End of the Blockbuster Drug Era? What 2008 Holds for Bringing Drugs to Market 2So Long, Old Friend: The End of the Blockbuster Drug Era? What 2008 Holds for Bringing Drugs to Market 3
Agarose for baculovirus plaque assays which allow optimal growth of plated insect cells....
BD BaculoGold Max-XP Insect Cell Medium 1 Liter...
Mycoplasma and virus tested...
Edited by I.H. Pawlowitzki, J.H. Edwards and E.A. Thompson (1997) • This volume covers: Linkage in dominant recessive and oligogenic disease, Model free (non-parametric) methods, Tools for gene ...
Biology Products: