Navigation Links
Exercising our immune system
Date:12/4/2007

Elite athletes - often perceived as the epitome of health and fitness may be more susceptible to common illness and are therefore proving useful in helping scientists understand more about the immune system.

Nic West, a PhD candidate at Griffith University, has enlisted elite rowers to help him study the role of salivary proteins that act as a barrier to infectious agents such as respiratory viruses.

He said salivary proteins such as lactoferrin and lysozyme act to prevent microbes from infecting the body and typically increase as the body fights off infection. They have a direct antimicrobial effect and also help modulate other aspects of the bodys immune response.

We want to understand the mucosal immune system better and the factors that increase a persons susceptibility to illness.

An initial observational study comparing elite rowers with sedentary individuals over five months clearly showed that exercise was associated with a significant reduction in the concentration of lactoferrin.

Theoretically, exercise is a stress on the body and leads to a greater susceptibility to illness. The decrease in salivary proteins, one of the bodys first lines of defence against infection, may help explain this.

However a second study comparing the concentration of salivary proteins in rowers at rest, after moderate exercise, and after high intensity exercise, showed that exercise increased rather than decreased lactoferrin and lysozymes in the short term.

Salivary proteins increased by about 50 per cent following exhaustive exercise which may be a transient activation response that increases protection in the immediate post-exercise period, he said.

His research over the next 18 months will test the effectiveness of a nutritional intervention in ameliorating the effects of hard physical activity on the immune system.

There is some research to indicate that probiotics and resistant starches are useful in boosting mucosal barrier function.

Mr West said the beauty of the immune system was that it had a natural redundancy with overlapping components in the event of any one protective mechanism failing.

So we also have mechanical barriers against infection such as the cilia in our nose, and immunity led by cells such as lymphocytes.


'/>"/>

Contact: Nic West
61-756-780-710
Research Australia
Source:Eurekalert

Related medicine news :

1. Penn study finds pro-death proteins required to regulate healthy immune function
2. Immune deficiency linked to a type of eye cancer
3. Tumors use enzyme to recruit regulatory T-cells and suppress immune response
4. Melanoma drug revs immune cells but cancer cells ignore it
5. Study identifies key player in the bodys immune response to chronic stress
6. MedImmune Resolves FDA Observations Regarding Manufacturing Process for FluMist(R)
7. UVA researchers find important clue to immune infertility
8. M.D. Anderson-led team reports possible key to autoimmune disease
9. Their immune cells, fighting your cancer
10. MedImmune Licenses Reverse Genetics Technology to GlaxoSmithKline for Use in Influenza Vaccine Development and Production
11. Occupational exposures may be linked to death from autoimmune disease
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/12/2016)... ... February 12, 2016 , ... Donor Network West, the organ ... Nevada, announced a partnership with San Ramon Regional Medical Center. Under the collaboration, the ... as a way to accommodate a more certain time frame for donor families for ...
(Date:2/12/2016)... ... 12, 2016 , ... Mediaplanet today announces the launch of ... of “Revolutionizing Cancer Care” is distributed within the February 12 issue of USA ... circulation of approximately 250,000 copies and an estimated readership of 750,000 readers. The ...
(Date:2/12/2016)... ... February 12, 2016 , ... US Sport Camps is pleased to ... Club, located in Norwalk, serves as the host site and directing the camps is ... “We have had successful camps in recent years around Des Moines and are fortunate ...
(Date:2/12/2016)... ... February 12, 2016 , ... The ... the field of long term care. With that, says Patrick Loughney, president of ... in administrative roles in long term care environments. His company, which offers prep ...
(Date:2/12/2016)... ... February 12, 2016 , ... With the exception of restorative dentistry, to date there ... With the recent approval by the FDA, there is a now a new protocol ... varnish, SDF is very simple and quick to apply. The application is as simple ...
Breaking Medicine News(10 mins):
(Date:2/11/2016)... , Feb. 11, 2016 ... commonly used in laboratories. These may range from microscope ... Laboratory glassware is made from borosilicate glass because of ... plasticware, on the other hand, started gaining popularity over ... was easier to replace glass with plastic in several ...
(Date:2/11/2016)... 2016  Governor Andrew M. Cuomo today announced a ... throughout Western New York . This ... Polytechnic Institute, includes a major expansion of Athenex,s North ... Buffalo , as well as the creation of ... Dunkirk . The combined projects are expected ...
(Date:2/11/2016)... -- NOIT™ Research LLC, a private, leading-edge autism research group, ... assist needy families in obtaining one of its special ... 10, 2016 and March 31, 2016, the company will ... is an auditory stimulus that plays a key role ... Beth Shier , NOIT Research director. "The ...
Breaking Medicine Technology: