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Mice That Eat Yogurt Have Larger Testicles (Probiotics may endow rodents with a "mouse swagger")
Scientific American Magazine ^ | May 2, 2012 | Elie Dolgin

Posted on 04/27/2012 1:42:49 AM PDT by rawhide

Last sum­mer a team of researchers from the Massa­chusetts Institute of Technology set out to better understand the effects of yogurt on obesity. They were following up on the results of a long-term study from the Harvard School of Public Health that had suggested yogurt, more than any other food, helped to prevent age-related weight gain. The M.I.T. team, led by cancer biologist Susan Erdman and evolutionary geneticist Eric Alm, wanted to replicate the work in mice. The researchers took a group of 40 males and 40 females and either fed the animals a high-fat, low-fiber, low-nutrient diet meant to mimic junk food or fed them standard mouse meals. They then supple­mented half of each diet group with vanilla-flavored yogurt.

Their goal was to understand how a probiotic diet affects rates of obesity and its related compli­ca­tions, including cancer. But “the most entertaining aspects of all this were things we didn’t anticipate,” Erdman says.

First, the scientists noticed that the yogurt-eating mice were incredibly shiny. Using both traditional histology techniques and cosmetic rating scales, the researchers showed that these animals had 10 times the active follicle density of other mice, resulting in luxuriantly silky fur.

Then the researchers spotted some­thing particular about the males: they projected their testes outward, which endowed them with a certain “mouse swagger,” Erdman says. On measuring the males, they found that the testicles of the yogurt consumers were about 5 percent heavier than those of mice fed typical diets alone and around 15 percent heavier than those of junk-eating males.

More important, that masculinity pays off. In mating experiments, yogurt-eating males inseminated their partners faster and produced more offspring than control mice. Conversely, females that ate the yogurt diets gave birth to larger litters and weaned those pups with greater success. Reflecting on their unpublished results, Erdman and Alm think that the probiotic microbes in the yogurt help to make the animals leaner and healthier, which indirectly improves sexual machismo.

The findings could have implications for human fertility. In ongoing work, a team led by Harvard nutritional epidemiologist Jorge Chavarro has looked at the association between yogurt intake and semen quality in men. “So far our preliminary findings are consistent with what they see in the mice,” Chavarro says.


TOPICS: Health/Medicine
KEYWORDS: mice; testicles; yogurt

1 posted on 04/27/2012 1:42:58 AM PDT by rawhide
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To: rawhide
Mice That Eat Yogurt Have Larger Testicles

Duh.
2 posted on 04/27/2012 1:50:36 AM PDT by andyk (Go Juan Pablo!)
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To: rawhide

Hmm, I really like yoghurt, so maybe I’ll run my own clinical trial. I don’t have much hair, so I’ll have to look at other parameters to judge the efficacy.


3 posted on 04/27/2012 1:52:04 AM PDT by mtrott
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To: rawhide
"They then supple­mented half of each diet group with vanilla-flavored yogurt."

It's the vanilla not the yogurt! LOL

This study is useless. They should have used plain yogurt.

I feel sorry for the mice. Even they can't escape TSA. Mice and men.

4 posted on 04/27/2012 1:52:18 AM PDT by 1_Rain_Drop
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To: rawhide

They fed them banana yogurt, really.


5 posted on 04/27/2012 1:52:55 AM PDT by bunkerhill7 (What?? Who knew?)
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To: rawhide

WTF realy nice.


6 posted on 04/27/2012 1:58:26 AM PDT by allmost
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To: rawhide
"The findings could have implications for human fertility. "

This is bad news considering the gov'ment wants to give out free contraceptives.

Yogurt should be banned. Should be a controlled substance. It'll save the taxpayers lotsa money.

7 posted on 04/27/2012 1:58:33 AM PDT by 1_Rain_Drop
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To: 1_Rain_Drop

Slow down FRiend. Please.


8 posted on 04/27/2012 1:59:43 AM PDT by allmost
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To: rawhide

LOL! This story confirms something I heard when I lived in Kreuzberg, Berlin.

There’s tons of Turks in Kreuzberg and Neukölln districts, and if you’re there for any length of time, you will inevitably see them drinking Ayran, a Turkish yogurt drink.

One time, after I’d gotten to know some of my neighbors, I asked them why they’re always guzzling the stuff, and the answer I got, “Don’t you know? Yogurt makes you a sex machine; your girlfriend or wife will think you’re a pornstar if you drink it!”

I thought he was just joking, or possibly drunk. Guess he was right; I learn something new every day, and usually from the unlikeliest of sources.


9 posted on 04/27/2012 2:14:25 AM PDT by AnAmericanAbroad (It's all bread and circuses for the future prey of the Morlocks.)
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To: rawhide

So eating yogurt will give you testicles the size of mice?

Goodness, Graceness, Great mouse balls of fire.....


10 posted on 04/27/2012 2:46:35 AM PDT by nevergore ("It could be that the purpose of my life is simply to serve as a warning to others.")
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To: rawhide

Anyone have that pic of the chipmunk w/ “big nuts”?


11 posted on 04/27/2012 3:33:24 AM PDT by carriage_hill (I'd vote for a "orange juice can", before 0bummer&HisRegimeFromHell, gets another 4yrs. Can-> later.)
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To: andyk

EAT MORE YOGURT!!!


12 posted on 04/27/2012 4:01:20 AM PDT by wetgundog (" Extremism in the Defense of Liberty is no Vice")
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To: rawhide

I think we should send a few cases to the GOP...just sayin’


13 posted on 04/27/2012 4:45:33 AM PDT by ~Vor~ (Freeper since 10/98)
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To: rawhide

Who paid for this study?


14 posted on 04/27/2012 4:50:45 AM PDT by Daveinyork
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To: ~Vor~

“I think we should send a few cases to the GOP...just sayin’”

ROFLMAO


15 posted on 04/27/2012 4:51:50 AM PDT by Daveinyork
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To: carriage_hill
You mean this one...


16 posted on 04/27/2012 5:05:22 AM PDT by Tainan (Cogito, ergo conservatus sum)
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To: Tainan

You beat me to the post.


17 posted on 04/27/2012 5:13:30 AM PDT by McGruff (Support your local Republican candidates. They are our last line of defense.)
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To: 1_Rain_Drop

They should have used plain yogurt.

&&&
That’s what I was thinking. And I am assuming that, in addition to the vanilla, the yogurt had sugar added to it.

I would think that a group of professional scientists would know better than to introduce more than one variable.


18 posted on 04/27/2012 5:17:31 AM PDT by Bigg Red (Pray for our republic.)
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To: rawhide

How do you weigh testicles?


19 posted on 04/27/2012 5:32:28 AM PDT by randita
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To: Daveinyork
Who paid for this study?

Look out behind you in the refrigerator aisle.

20 posted on 04/27/2012 5:35:22 AM PDT by andy58-in-nh (America does not need to be organized: it needs to be liberated.)
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To: randita

I don’t know. I will do a search, after I finish my yogurt!


21 posted on 04/27/2012 5:58:13 AM PDT by rawhide
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To: Tainan

That’s the guy, T! LOL; thanks!


22 posted on 04/27/2012 6:15:54 AM PDT by carriage_hill (I'd vote for a "orange juice can", before 0bummer&HisRegimeFromHell, gets another 4yrs. Can-> later.)
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To: rawhide

Well suzy, what do you want to be when you grow up?

I wanted to be a Nurse but now I want to be a mouse ball weigher. I just adore those lovely little pink scales


23 posted on 04/27/2012 6:19:35 AM PDT by bert (K.E. N.P. +12 ..... Crucifixion is coming)
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To: andy58-in-nh

Better bait for the better mousetrap.


24 posted on 04/27/2012 8:03:09 AM PDT by Daveinyork
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To: AnAmericanAbroad

similar,and quite delicious.

25 posted on 04/27/2012 12:28:53 PM PDT by TurboZamboni (Looting the future to bribe the present)
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