backtop


Print 37 comment(s) - last by amagriva.. on Aug 19 at 9:48 AM


  (Source: http://business-ethics.com/)
Animal models were used to show reduced skeletal and cardiac muscle contractions after exposure to triclosan

A chemical commonly found in hand soaps (among other household products) has been found to be harmful to both humans and the environment. 
 
The chemical is called triclosan, and it's a chemical that can be found in hand soaps, toothpastes, mouthwash, deodorants, clothes, bedding, carpets, toys, etc. It was introduced 40 years ago to prevent bacterial infections in hospitals. Over time, it has been used more and more for household purposes. 
 
However, researchers at the University of California - Davis and the University of Colorado have discovered that triclosan actually affects muscular strength in mice, swimming in fish and muscular contractions in skeletal and cardiac cells. 
 
The researchers reached these conclusions by first exposing living mice to doses of triclosan similar to that humans and animals would be in contact with on a daily basis. After 20 minutes of exposure, the mice had a 25 percent drop in heart function. They also had an 18 percent decrease in grip strength after an hour of exposure.
 
Next, researchers exposed fathead minnows to triclosan in order to see how the chemical affects life in waterways. After swimming in water containing triclosan for one week, the minnows experienced a huge drop in swimming speeds when participating in swimming tests of both normal conditions and those that simulate the threat of a predator chasing them.
 
Researchers then exposed isolated heart and skeletal cells to triclosan. The damage was significant, where triclosan disrupted molecular channels in muscle cells that guide the flow of calcium ions. This prevented protein communication that acts as these channels, leading to muscle failure in both the cardiac and skeletal cells. 
 
"The effects of triclosan on cardiac function were really dramatic," said Nipavan Chiamvimonvat, co-author of the study from UC Davis. "Although triclosan is not regulated as a drug, this compound acts like a potent cardiac depressant in our models."
 
More research is likely needed before the U.S. Food and Drug Administration (FDA) will do anything about it, but the researchers aren't looking to ban the chemical entirely -- they just want to greatly decrease its ubiquity in household products. 
 
A separate study in 2010 also showed negative side effects associated with triclosan. University of Michigan researchers discovered that triclosan caused immune system problems in children under 18. 

Source: UC Davis



Comments     Threshold


This article is over a month old, voting and posting comments is disabled

RE: That's what you get
By CZroe on 8/16/2012 4:57:28 PM , Rating: 3
No "they" haven't: Idiots have. "They" implies the experts. Experts aren't stupid enough to confuse antibiotic and antibacterial.

A "super-strain" is one that develops a resistance to an antibiotic. If it was never used as an antibiotic, then the resistance to it only affects the intended use (topical disinfectant) and puts us back to square one as far as that particular application goes. Triclosan-resistant bacteria will not be resistant to any antibiotic used in human medicine, which is the very reason we use different antibiotics on livestock and willy-nilly pump them full of it preventatively. As long as improves the bottom line in agriculture, we don't care if it breeds an animal super-strain when it does not reduce the effectiveness of our own antibiotics. That is, we don't care until a super-strain does emerge threatening our livestock as it runs rampant (back-fires).

You are fighting the wrong fight and adding to the misinformation. Fight against over-use in our livestock or something instead.


"The Space Elevator will be built about 50 years after everyone stops laughing" -- Sir Arthur C. Clarke

Related Articles













botimage
Copyright 2014 DailyTech LLC. - RSS Feed | Advertise | About Us | Ethics | FAQ | Terms, Conditions & Privacy Information | Kristopher Kubicki