Navigation Links
Antioxidants aren't always good for you and can impair muscle function, study shows
Date:1/26/2010

Antioxidants increasingly have been praised for their benefits against disease and aging, but recent studies at Kansas State University show that they also can cause harm.

Researchers in K-State's Cardiorespiratory Exercise Laboratory have been studying how to improve oxygen delivery to the skeletal muscle during physical activity by using antioxidants, which are nutrients in foods that can prevent or slow the oxidative damage to the body. Their findings show that sometimes antioxidants can impair muscle function.

"Antioxidant is one of those buzz words right now," said Steven Copp, a doctoral student in anatomy and physiology from Manhattan and a researcher in the lab. "Walking around grocery stores you see things advertised that are loaded with antioxidants. I think what a lot of people don't realize is that the antioxidant and pro-oxidant balance is really delicate. One of the things we've seen in our research is that you can't just give a larger dose of antioxidants and presume that there will be some sort of beneficial effect. In fact, you can actually make a problem worse."

David C. Poole and Timothy I. Musch, K-State professors from both the departments of kinesiology and anatomy and physiology, direct the Cardiorespiratory Exercise Laboratory, located in the College of Veterinary Medicine complex. Researchers in the lab study the physiology of physical activity in health and disease through animal models. Copp and Daniel Hirai, an anatomy and physiology doctoral student from Manhattan working in the lab, have conducted various studies associated with how muscles control blood flow and the effects of different doses and types of antioxidants.

Abnormalities in the circulatory system, such as those that result from aging or a disease like chronic heart failure, can impair oxygen delivery to the skeletal muscle and increase fatigability during physical activity, Copp said. The researchers are studying the effects antioxid
'/>"/>

Contact: David C. Poole
dcpoole@k-state.edu
785-532-4529
Kansas State University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Clemson chemists discover new way antioxidants fight debilitating diseases
2. Antioxidants could provide all-purpose radiation protection
3. Research shows Brazilian acai berry antioxidants absorbed by human body
4. Purple tomatoes: The richness of antioxidants against tumors
5. Forget the antioxidants? McGill researchers cast doubt on role of free radicals in aging
6. Antioxidants in Midwestern black raspberries influenced by production site
7. Scientists discover influenzas Achilles heel: Antioxidants
8. Many parents at-risk for cancer disclose genetic test results to children
9. Fever causing headaches for Aussie parents
10. Handbook helps parents deal with childhood infections
11. Family ties that bind: Maternal grandparents are more involved in the lives of their grandchildren
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/20/2014)... E. Fox, a John and Rebecca Moores Professor of Biology ... a fellow in the International Society for the Study of ... of four members two from the U.S., one from ... 2014. Fellows are elected every three years, and 36 have ... more than 20 countries, the ISSOL includes researchers from disciplines ...
(Date:8/20/2014)... finds life can persist in a cold, dark world. ... team that examined waters and sediments from a shallow ... the extreme environment supports microbial ecosystems. , The ... colleagues has implications for life in other extreme environments, ... findings are published in the current edition of the ...
(Date:8/20/2014)... of the Para and Mato Grosso states of Brazil. ... in order to deforest the land. Deforestation is the ... the land is thereafter converted to a nonforest use. ... ranches, or urban use. The herringbone-patterned tan lines cutting ... the middle of the image are evidence of deforestation ...
Breaking Biology News(10 mins):UH professor named fellow by International Astrobiology Society 2University of Tennessee research uncovers subglacial life beneath Antarctic ice sheet 2
... children with autism have a wide range of genetic ... genetic test to identify the disorder. Now, University of ... in the facial features and brain structures of children ... to develop a formula for earlier detection of the ...
... Woods Institute for the Environment has awarded five faculty ... that help solve the world,s urgent demands for fresh ... and well-being, yet in poor countries more than a ... and more than 2 billion lack basic sanitation facilities," ...
... and marrow transplant physician Naynesh Kamani, MD ... new national clinical trial of unrelated donor marrow and ... cell disease . Children,s National will join more than ... clinical trial of this treatment. If successful, the Sickle ...
Cached Biology News:Researchers study facial structures, brain abnormalities to reveal formula for detection of autism 2New planning grants to fund research on freshwater issues 2New planning grants to fund research on freshwater issues 3Children's national co-leads nationwide study of landmark sickle cell treatment 2
(Date:8/20/2014)... that American Indians largely were wiped out by diseases ... brought to the New World by European explorers., One ... lived in the Americas shortly before Europeans arrived, and ... diseases., But new research led by anthropological geneticists Anne ... the University of Tubingen in Germany indicates the diagnosis ...
(Date:8/20/2014)... 2014 High performance computing (HPC) ... most complete climate and Earth system model to ... issues. , Eight national laboratories, including Lawrence ... Center for Atmospheric Research, four academic institutions and ... participating national laboratories include Argonne, Brookhaven, Lawrence Berkeley, ...
(Date:8/20/2014)... 2014 The 6th Annual Arrowhead ... on October 29-30 in San Francisco, CA. This year’s ... government researchers and clinicians focused on addressing and solving ... In the twelve years since the sequencing of the ... introduced with pharmacogenetic information in the label and molecular ...
(Date:8/20/2014)... health of your heart, researchers have discovered. , A ... TENS machine like those designed to relieve labour pains ... raised flap at the front of the ear immediately ... changed the influence of the nervous system on the ... failing hearts too hard. , Professor Jim Deuchars, Professor ...
Breaking Biology Technology:Unusual discovery leads to fascinating tuberculosis theory 2Unusual discovery leads to fascinating tuberculosis theory 3New Project Is the ACME of Addressing Climate Change 2New Project Is the ACME of Addressing Climate Change 36th Annual Personalized and Precision Medicine Conference Bringing Together Thought Leaders to Discuss Clinical Implementation, Dx Reimbursement, Big Data, and Sequencing 2'Tickling' your ear could be good for your heart 2
... Minimally Invasive Treatment of Bone Fractures Achieves Significant ... Feb. 23 IlluminOss Medical Inc., a medical ... Stabilization System for orthopedic surgery, today announced that ... Registration issued by BSI (British Standards Institute). ...
... February 23 Health Robotics and Can-Med,today ... agreement whereby Can-Med,has acquired the exclusive distribution ... Georgia, Kazakhstan, Uzbekistan, Azerbaijan,Iran, Mongolia, Turkmenistan, Kyrgyzstan, ... only automated, point-of-care-distributed, and fail-safe,robotic system for ...
... YORK, Feb. 23 NeoStem, Inc. (NYSE Alternext ... processing and long-term storage of adult stem cells ... signed a license agreement to obtain the exclusive ... applications for cosmetic facial and body procedures and ...
Cached Biology Technology:IlluminOss Medical Receives ISO 13485 Certification 2Health Robotics Expands i.v.STATION(TM) Partnership With Can-Med in 10 Countries Within Central Asia 2Health Robotics Expands i.v.STATION(TM) Partnership With Can-Med in 10 Countries Within Central Asia 3NeoStem Obtains Exclusive Worldwide License to Innovative Stem Cell Technology and Applications for Anti-Aging Skin Rejuvenation Therapies 2NeoStem Obtains Exclusive Worldwide License to Innovative Stem Cell Technology and Applications for Anti-Aging Skin Rejuvenation Therapies 3
... Inhibitor is a potent noncompetitive ... as RNase A. Like other ... Inhibitor is an acidic protein ... kDa. RNaseOUT inhibits RNase A ...
... (Chemical Inkjet Printer) is a revolutionary ... and Protein Macroarray Analysis, developed in ... The strategy compliments established protocols in ... the proteins isoelectric point and apparent ...
... Ribonuclease Inhibitors have broad spectrum RNase inhibitory ... of the neutral type (1). The 50kDa ... binding to RNases in a 1:1 ratio. ... RNasin Ribonuclease Inhibitor to RNase (e.g., RNase ...
... BIOLASE Core Kit contains all ... polymerase assays on a wide ... addition to dNTPs, the Core ... widely used BIOLASE DNA polymerase, ...
Biology Products: