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Mens Odor Stresses Lab Mice, Could Skew Results

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Topic: Mens Odor Stresses Lab Mice, Could Skew Results
Posted By: tatee
Subject: Mens Odor Stresses Lab Mice, Could Skew Results
Date Posted: Apr 30 2014 at 2:55pm
Mens’ Odor Stresses Lab Mice, Which Could Skew Results


By http://discovermagazine.com/authors?name=Carl+Engelking" rel="nofollow - Carl Engelking | April 29, 2014 1:23 pm


http://blogs.discovermagazine.com/d-brief/2014/04/29/mens-odor-stresses-lab-mice-which-could-skew-results/#" rel="nofollow - - -
http://blogs.discovermagazine.com/d-brief/2014/04/29/mens-odor-stresses-lab-mice-which-could-skew-results/#" rel="nofollow -


A new study is wafting an odor of uncertainty over the results of prior experiments using lab rats and mice. Researchers have discovered that the scent of a human male significantly stresses the critters, an effect not seen in response to females.

Researchers from McGill University in Montreal discovered that, in the presence of men, mice display a stress response equivalent to being placed in a confined space, such as a tube, for 15 minutes. The study is the first to systematically test this aspect of rodents’ response to their handlers.

“Scientists whisper to each other at conferences that their rodent research subjects appear to be aware of their presence, and that this might affect the results of experiments, but this has never been directly demonstrated until now,” Jeffrey Mogil, a psychology professor at McGill who led the study, https://publications.mcgill.ca/reporter/2014/04/of-mice-and-men/" rel="nofollow - said in a statement .

A Frightening Odor

The research team administered pain-inducing injections to mice and rats and monitored their facial grimaces, which is a measure of pain. When rodents are stressed, they grimace less, because their fight-or-flight response kicks in and mitigates discomfort. When a man was in the room, the rodents grimaced 35 percent less than when no one was in the room. However, there was no significant difference if a female was sitting in the room.

To determine if rodents were reacting to scent and not something else, researchers placed T-shirts worn by either men and women in the cage with them. The critters showed the same gender-specific response. Further, they showed the same response when exposed to bedding used by male cats and dogs, as well as to synthetic versions of chemicals secreted from mens’ armpits.

“Our data suggest instead that an odor evoked by a cocktail of chemicals within the body secretions of isolated males (except cage mates) produce stress in rodents,” researchers wrote in their report, published Monday in the http://www.nature.com/nmeth/journal/vaop/ncurrent/full/nmeth.2935.html" rel="nofollow - journal Nature Methods .

Better Experiments

Producing replicable results is the standard that scientists strive for in their published studies. However the new study indicates that lab animals’ biology and behavior might be affected not just by the experimental treatment but by the experimenters themselves.

How the discovery is translated into better experimental methods is far from clear at this point. Still, Mogil http://www.thestar.com/news/canada/2014/04/28/lab_mice_stressed_by_smell_of_male_researchers_mcgill_study.html" rel="nofollow - told TheStar.com , “This is a finding that’s going to make scientific research better, more reliable than it’s been before.”

http://blogs.discovermagazine.com/d-brief/2014/04/29/mens-odor-stresses-lab-mice-which-could-skew-results/#.U2FTP1eebAB" rel="nofollow - http://blogs.discovermagazine.com/d-brief/2014/04/29/mens-odor-stresses-lab-mice-which-could-skew-results/#.U2FTP1eebAB

http://www.npr.org/blogs/thetwo-way/2014/04/29/308107307/lab-rats-may-be-stressed-by-men-which-may-skew-experiments" rel="nofollow - http://www.npr.org/blogs/thetwo-way/2014/04/29/308107307/lab-rats-may-be-stressed-by-men-which-may-skew-experiments




Replies:
Posted By: Derri
Date Posted: Apr 30 2014 at 3:01pm
The scent of human males often stresses me out too!


Posted By: ModelessDiva
Date Posted: Apr 30 2014 at 3:05pm

LOLwth is this?


Posted By: tatee
Date Posted: Apr 30 2014 at 3:08pm
Originally posted by ModelessDiva ModelessDiva wrote:


LOLwth is this?


you cant see why this would be important


Posted By: Bored w/Out Me?
Date Posted: Apr 30 2014 at 3:15pm
Lab mice get shotup with ebola and they can't handle a lil body odor


Posted By: Alias_Avi
Date Posted: Apr 30 2014 at 3:17pm
LOL

Originally posted by Derri Derri wrote:

The scent of human males often stresses me out too!


Posted By: ModelessDiva
Date Posted: Apr 30 2014 at 3:17pm
i just kinda skimmed...


Posted By: afrokock
Date Posted: Apr 30 2014 at 3:46pm
and they put a black male scientist in the pic

i see what they are doing


Posted By: tatee
Date Posted: Apr 30 2014 at 3:57pm
Originally posted by afrokock afrokock wrote:

and they put a black male scientist in the pic

i see what they are doing


i wanna strangle you for that bruh.  i often times change the pics in the articles i post just because the is  a black site and i like to limit the number of white faces i see on it.  do you feel pressure around your neck? 


Posted By: tatee
Date Posted: Apr 30 2014 at 4:02pm
Originally posted by SamoneLenior SamoneLenior wrote:


lmao

tatee getting folks together this evening


dont laugh.  do you how hard it is to find appropriate pics for these threadsLOL


Posted By: tatee
Date Posted: Apr 30 2014 at 4:06pm
Originally posted by SamoneLenior SamoneLenior wrote:


lol

I didn't know you did that

that's nice of you though

can't knock afo for thinking it came with the article


of course i canLOL


Posted By: tatee
Date Posted: Apr 30 2014 at 4:07pm
Originally posted by CherryBlossom CherryBlossom wrote:

Originally posted by tatee tatee wrote:

Originally posted by afrokock afrokock wrote:

and they put a black male scientist in the pic

i see what they are doing


i wanna strangle you for that bruh.  i often times change the pics in the articles i post just because the is  a black site and i like to limit the number of white faces i see on it.  do you feel pressure around your neck? 
Shocked

bless you tatee



this was the original picture




Posted By: afrokock
Date Posted: Apr 30 2014 at 4:15pm
Originally posted by tatee tatee wrote:

Originally posted by afrokock afrokock wrote:

and they put a black male scientist in the pic

i see what they are doing


i wanna strangle you for that bruh.  i often times change the pics in the articles i post just because the is  a black site and i like to limit the number of white faces i see on it.  do you feel pressure around your neck? 


well now we know



and that white does look like he smells tbh


Posted By: tatee
Date Posted: Apr 30 2014 at 4:17pm
ikrLOL  i always look at stock photos in articles and wonder why they use a particular photo.  when i noticed that it had more to do with the target audience than the article, i just started changing the ones that didnt suit me.


Posted By: QueenBee
Date Posted: May 01 2014 at 9:55pm
Interesting...


Posted By: Lite Brite
Date Posted: May 01 2014 at 10:54pm
Cool study bro, but there was no other way to do it than injecting them with a pain-inducing cocktail?


LMAO @ afro and tatee



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