July 6, 2011

Spider’s Give New Insights on Aging?

(Ivanhoe Newswire) -- Young house spiders weave webs with perfect angles and regular patterns, but as they reach old age their webs deteriorate, showing gaping holes and erratic weaving. By using spiders as a simple model this research may provide insight into how age affects behavior in other organisms, including humans.

The reason web building skills are lost as spiders grow older may be due to degeneration of the central nervous system. PhD researcher, Mylne Anotaux, from Nancy University in France, was quoted as saying "Our next steps will be to understand whether age-induced changes in the central nervous system are behind the differences in behavior we have found."

"Because of the importance of understanding the underlying behavioral mechanisms of ageing in humans, investigating simple animal models that assess ageing mechanisms is essential," Dr. Anotaux was quoted as saying.
This research used a common European house spider Zygiella x-notata, its short life span (around 12 months) and simple nervous system making it an ideal organism to shed light on the complexities of how aging can affect behavior.

The webs of the spiders were assessed throughout their lifetime using measures such as the regularity of web structure, angles between the strands and whether there were any holes.

SOURCE: Experimental Biology Annual Conference in Glasgow on Saturday July 2, 2011