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:5/24/2016)... ... May 24, 2016 , ... Women's ... , Roberta Jordan is a Certified Nurse Midwife who was born and raised ... then went on to complete her masters degree from the University of Mexico. ...
(Date:5/24/2016)... ... 24, 2016 , ... Educational opportunities, and therefore life chances, ... communities providing richer opportunities. Recognizing the key role of housing in this system, ... school choice policies; (c) school desegregation policies; (d) wealth-focused policies; and (e) housing-focused ...
(Date:5/24/2016)... ... 24, 2016 , ... Regenerative Medicine is being transformed by ongoing research and ... protocols and patient results as have been achieved with Okyanos Cell Therapy ... of care for patients worldwide. , As the Medical Advisory Chairman at Okyanos, Eric ...
(Date:5/24/2016)... ... 2016 , ... Backed by decades of experience, Metroloji Okulu ... the best suited solution to meet regulatory requirements. Their professional staff also performs ... Istanbul. , Metroloji Okulu specializes in MadgeTech’s line of medical and pharmaceutical ...
(Date:5/24/2016)... ... May 24, 2016 , ... American Gene Technologies ... to its board of directors. Otterstatter is co-founder, president and CEO of ... technological innovations that lead to broad-based healthcare solutions. , “Jon knows how to ...
Breaking Medicine News(10 mins):
(Date:5/24/2016)... , May 24, 2016 ... beide primären Endpunkte und demonstriert ... in ‚ausgezeichneter plus guter , ...    ,      (Logo: http://photos.prnewswire.com/prnh/20130829/633895-a ... heute neue positive Daten von der MORA-Studie der ...
(Date:5/24/2016)... LAWRENCE, Mass. , May 24, 2016  NxStage ... medical technology company focused on advancing renal care, today ... Officer, plans to participate in the following schedule of ... will be made available at http://ir.nxstage.com/ . ... Jefferies Healthcare Conference NY, NY           Friday, ...
(Date:5/24/2016)... , May 24, 2016 ... de doble terapia del mundo, introduce catéteres para ... OrbusNeich, una compañía global especializada en ... vidas, ha expandido su cartera incluyendo productos para ... JADE™ y Scoreflex™ PTA son los dispositivos de ...
Breaking Medicine Technology: