HOME >> BIOLOGY >> NEWS
Regular physical activity really does boost immune system in older men

BETHESDA, MD (August 24, 2004) As they get older, many older people, mostly men, are fond of saying something along the lines of, "I feel like a 25-year-old."

As it turns out, judging by the reaction strength of their immune system to an unknown, but harmless, protein antigen, it's possible for men over 70 to mount an immune response similar to that produced by much younger men -- if they get regular moderate physical activity of about six hours a week.

Previous studies show that the aging immune system suffers from a progressive decrease in function that can lead to several negative situations including increased risk of infectious disease and ineffective response to vaccination. It's been shown that regular moderate cardiovascular exercise such as walking or cycling may offset some of the immune function decline in healthy older people. However most earlier studies tested the effect of exercise on immune function using in vitro measures of immunity, which aren't always predictive of in vivo responses. Furthermore many earlier studies depended on antigenic challenges that weren't novel to the subjects, which stimulated secondary or tertiary responses.

Colorado researchers use KLH for true primary immune response

Researchers at the University of Colorado-Boulder wanted to test the popularly accepted notion that people who maintain a physically active lifestyle will enjoy the benefits a stronger immune system into older age. They designed a novel in vivo challenge to the immune system. To get clean, comprehensive results, they used KLH (keyhole limpet hemocyanin), a benign T cell-dependent protein isolate that has been used extensively with animals in the past, that also is safe for humans.

The study, entitled "Influence of age and physical activity on the primary in vivo antibody and T cell-mediated responses in men," appears in the August 2004 issue of the Journal of Applied Physiology, one of 14 peer-reviewed journ
'"/>

Contact: Mayer Resnick
mresnick@the-aps.org
301-634-7209
American Physiological Society
24-Aug-2004


Page: 1 2 3

Related biology news :

1. Hopkins Researchers Urge Regular Chlamydia Testing For All Sexually Active Teenage Women
2. Age-related decrease in physical ability may be in the genes
3. Gray matter damage in the brain of MS patients linked to cognitive, physical deficits
4. Intelligent device shows promise in physical activity measurement market
5. Technological advances making life easier for people with physical and mental challenges
6. UMass scientist identifies gene that governs obesity, physical activity, sex behaviors in mice
7. New physical activity opinion survey demonstrates perceptions do not meet reality
8. Welch Award honors McConnell for insights into physical chemistry, cell membranes
9. Scientists urge that the patient physical should now include this advice: Get off the sofa and get active
10. Study allays fears about the physical and psychological development of ICSI children
11. Two distinguished Rutgers chemists named Biophysical Society Fellows

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Regular physical activity really does boost immune system older men

(Date:7/30/2014)... Red Queen in Lewis Carroll,s Through the Looking ... National University of Singapore improved a 35-year-old ecology ... decades to millions of years. , The new ... incorporates the "Red Queen Effect," an evolutionary hypothesis ... which suggests that organisms must constantly increase their ...
(Date:7/30/2014)... until they hatched 4.5 years later, according to a ... PLOS ONE by Bruce Robison from Monterey ... have a single reproductive period during their life, where ... eggs until they hatch. Shallow-water octopuses typically care for ... is known about the brooding of deep-sea species. Using ...
(Date:7/30/2014)... (ACS) announced today that David L. Kaplan, Ph.D., will ... & Engineering as editor-in-chief. With the first issue ... will feature high-quality research in the rapidly burgeoning field ... materials that interact with living or biological systems. , ... tremendous growth in the field of biomaterials over the ...
Breaking Biology News(10 mins):Classic Lewis Carroll character inspires new ecological model 2Classic Lewis Carroll character inspires new ecological model 3Deep-sea octopus has longest-known egg-brooding period 2ACS Biomaterials Science & Engineering: Brand-new journal launches in 2015, names editor 2
(Date:7/30/2014)... MARLBOROUGH, Mass. , July 30, 2014 ... RXII ), a biotechnology company focused on ... major unmet medical needs using RNA-targeted technologies, ... study (RXI-109-1402) with RXI-109, for the reduction ... scar revision surgery, has been initiated. ...
(Date:7/30/2014)... Vala Sciences was recently awarded ... Agency (EPA). This new contract was awarded for ... tests designed to assess the effect of chemical ... connections between neurons (synapses), which are critical for ... by environmental pollutants likely contributes to a variety ...
(Date:7/30/2014)... MA (PRWEB) July 30, 2014 LayerBio, ... announces completion of its first round of seed financing ... will enable preliminary efforts to develop a novel sustained-release ... support of our investors and their commitment to this ... of LayerBio. "Ophthalmology is one of many areas in ...
(Date:7/29/2014)... of significant technological challenges in their quest to ... for the James Webb Space Telescope. , The ... scientist at NASA,s Goddard Space Flight Center in ... arrays that is, those activated by applying ... the current technology,s magnetically activated arrays. This advance ...
Breaking Biology Technology:RXi Pharmaceuticals Expands Clinical Program with Initiation of Third Phase 2a Study with RXI-109 for Treatment of Hypertrophic Scars 2RXi Pharmaceuticals Expands Clinical Program with Initiation of Third Phase 2a Study with RXI-109 for Treatment of Hypertrophic Scars 3RXi Pharmaceuticals Expands Clinical Program with Initiation of Third Phase 2a Study with RXI-109 for Treatment of Hypertrophic Scars 4RXi Pharmaceuticals Expands Clinical Program with Initiation of Third Phase 2a Study with RXI-109 for Treatment of Hypertrophic Scars 5U.S. Environmental Protection Agency (EPA) Awards Vala Sciences a Second ToxCast Contract 2U.S. Environmental Protection Agency (EPA) Awards Vala Sciences a Second ToxCast Contract 3Revolutionary microshutter technology hurdles significant challenges 2Revolutionary microshutter technology hurdles significant challenges 3Revolutionary microshutter technology hurdles significant challenges 4
Cached News: