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Topic: Antiaphrodisiac


In the News (Sun 27 May 12)

  
  2005/2006 Student Research Grants, E.O. Wilson Conservation Award,and Cetacean Behavior and Conservation Awards ...
The objectives of this study are: (1) To establish a complete pedigree of the NBR pronghorn population, (2) To determine if females actively avoid mating with close relatives, and (3) To determine the effect of parental relatedness on offspring viability.
In order to decrease the risk of sperm competition, males from some insect groups transfer antiaphrodisiac pheromones that make mated females unattractive to other courting males.
Given that males are strongly attracted to females by their wing color patterns and that heterospecific encounters are common, I expect to find similarities in the chemical composition of antiaphrodisiacs among mimetic butterfly species.
www.animalbehavior.org /ABSGrants/ABSCRG_2005_2006   (5556 words)

  
 Untitled Document
A pheromone produced by male beetles attracts females (A) and one produced by females attracts males (B).
When males have been stimulated by female scent, they produce an antiaphrodisiac which inhibits the responses of other males to female scent (C).
Finally, primer pheromones produced by both sexes accelerate reproductive maturation in young adult female (D).
mercury.bio.uaf.edu /~george_happ/insectres.htm   (775 words)

  
 Sexuality
It's a funny thing -- while exercise can increase the libido of those who are trying to rev things up, it can also serve to dispel sexual tension and make libido more manageable for those folks whose motors always seem to be in fifth.
The second approach involves ingesting one or another kind of antiaphrodisiac.
As you can imagine, it's no fun at all if you end up with a sex drive as fierce as ever but you can1t come without straining so hard you pop a blood vessel.
www.planetout.com /health/sexuality/qanda.html?sernum=87   (963 words)

  
 Maca Root - Benefits & Side Effects
Dried roots are cooked in water to make a sweet, aromatic porridge known as "mazamorra." According to Peruvian folk belief, maca enhances female fertility in both humans and livestock, countering the reduction in fertility seen in high altitudes.
However, maca is believed to have an antiaphrodisiac effect on males.
Botany :- Maca is cultivated in a narrow, high-altitude zone of the Andes Mountains in Peru.
www.natural-medicinal-herbs.com /herbs/maca.htm   (547 words)

  
 In Sum - signs of beetle bits on fossil leaves; fuel for migrating birds; butterfly sex controls - Brief Article ...
Its effects are so strong that most males will refrain from mating even with virgin females (ordinarily more sought after than nonvirgins) to which it has been artificially applied.
The researchers are still trying to discover which sex controls the gradual decrease in the methyl-salicylate shield that allows females to eventually regain their attractiveness and remate.
("Sexual Cooperation and Conflict in Butterflies: A Male-Transferred Antiaphrodisiac Reduces Harassment of Recently Mated Females." Proceedings of the Royal Sorely of London B 267: 1271, 2000)
www.findarticles.com /p/articles/mi_m1134/is_9_109/ai_67410992   (799 words)

  
 Maca Uses
The latter is also found in mashua (also know as añu and isaño) (Trapaealum tuberasum Ruiz and Pavon).
This species, however, is reputed to be an antiaphrodisiac and antireproductive agent in males, but a promoter of female fertility (Johns 1981).
The putative aphrodisiac powers of maca also can be attributed to the presence of prostaglandins and sterols in the 'hypocotyls' (Dini et al.
www.peruvian-maca.com /Uses.htm   (870 words)

  
 Drosophila Conditioned Courtship: Two Ways of Testing Memory -- Kamyshev et al. 6 (1): 1 -- Learning & Memory   (Site not responding. Last check: 2007-09-17)
the antiaphrodisiac or by the female's repelling movements (escape).
and an increase in sensitivity (sensibilization) to the antiaphrodisiac.
the antiaphrodisiac is induced by another male courting her just
www.learnmem.org /cgi/content/full/6/1/1   (8111 words)

  
 PNAS -- News Archive092002   (Site not responding. Last check: 2007-09-17)
Neurons affected by the mutant gene included taste-sensing nerves found on the head and legs.
These neurons may act to suppress male-male courtship by detecting or properly interpreting antiaphrodisiac pheromones produced by males.
The findings demonstrate a new way to examine how distinct groups of neurons are involved in sexual orientation and other behaviors of the fruit fly.
www.pnas.org /misc/archive092002.shtml   (2317 words)

  
 The Pedestal Magazine
In a nutshell, Kellogg worshiped a bland outlook on life--no meats, alcohol, tobacco, caffeine, or sex--and thought this regimen would create long life and health for himself and his patients.
To make sure his patients stuck to the hardest of these denials--no sex--he also made sure everyone ate Corn Flakes, which he said had antiaphrodisiac properties.
While this may be the historical Kellogg, in The Road to Wellville Boyle takes history and moves it into the present day by mixing in neurotic patients, love triangles, and father/pseudo-son relationships.
www.thepedestalmagazine.com /Secure/Content/cb.asp?cbid=4716   (2214 words)

  
 Ethnobotanical Leaflets
Mashua traditionally has many medicinal uses in the folk medicine of the Andean region, and its domestication may have related to its importance as a medicinal agent (Johns et al., 1982).
Many of the medicinal uses of mashua relate to the presence of p-methoxybenzyl isothiocyanate, which has been used in Andean ethnomedicine (Johns and Towers, 1981) Mashua is considered an antiaphrodisiac and many Andean men refuse to consume it because they believe it produces impotence and infertility (Johns et al., 1982).
The Spanish chronicler Cobo stated that the Inca emperors fed their armies mashua, "that they should forget their wives" (1956).
www.siu.edu /~ebl/leaflets/mashua.htm   (2081 words)

  
 The Loom : Beware of Crickets Bearing Gifts
Even after sperm have entered a female fruit fly's body, she can influence which male will become the father of her eggs.
Brett Holland and William Rice demonstrated that male fruit flies respond by injecting chemicals along with their sperm that act like antiaphrodisiacs, making it less likely that females will mate again soon.
Sakaluk found that when female crickets of other species at the gifts, they were much slower to mate again.
scienceblogs.com /loom/2005/11/05/beware_of_crickets_bearing_gif.php   (1718 words)

  
 Interactive Fly, Drosophila
Males lack these female-specific compounds and instead produce compounds thought to be antiaphrodisiacs, such as 5-tricosene (5-23:1 or 5-T) and 7-tricosene (7-23:1 or 7-T).
Wild-type females produce only trace amounts of 5-T. The antiaphrodisiac 7-T is shown to be present in both sexes; however, males produce much higher levels than females (Waterbury, 1999).
transgene is sufficient to reduce the levels of the potent male antiaphrodisiac 5-T to trace amounts (10.0 ng/fly), a level similar to that detected in control females (10.0 ng/fly).
www.sdbonline.org /fly/newgene/doublsx1.htm   (15866 words)

  
 RFI: Antiaphrodisiacs
Saw palmetto is reputed to reduce testosterone levels.
Gut-wrenching, cold sweat-inducing fear is a primo antiaphrodisiac.
Actually, anything that races your adrenal glands will do the trick, becausee once your body has shot its reserves of adrenaline, it will cannibalize its testosterone to get the raw materials to make more adrenaline.
ilx.wh3rd.net /thread.php?msgid=3209530   (273 words)

  
 House/Clade Stevens
The young generation were growing up, and soon the question would become urgent.
The preliminary solution was a simple antiaphrodisiac, which at least gave the small community time to grow up and think.
The Stevens were in many ways conservative people, Earth baselines with an ingrained distrust of superior practices and the wild mores of the outer system.
www.orionsarm.com /clades/Stevens.html   (2700 words)

  
 [No title]
He said it was saltpetre--sodium nitrate--that he used in corning beef and in making pastrami.
Well, there isn't any harm in saltpetre; it doesn't even act as an antiaphrodisiac, as a lot of people seem to think.
But I wrapped it up with the other loot and took it along, just for fun.
lilt.ilstu.edu /pefranc/ROUECHE.00.html   (3660 words)

  
 The Loom: A blog about life, past and future   (Site not responding. Last check: 2007-09-17)
While this injection made it more likely males would father flies, it has nasty side-effects on the females.
The males apparently spike them with an antiaphrodisiac.
Sakaluk proposes that when male decorated crickets first began delivering antiaphrodisiacs, the females were as vulnerable as other species are today.
www.corante.com /loom/archives/2005/11   (9700 words)

  
 epideictic
i.mating deterrent; antiaphrodisiacs (Gilbert, 1976; Richmond et al., 1983)
Postmating female odor in Heliconius butterflies: a male-contributed antiaphrodisiac?
Functional significance of the alarm pheromone composition in various morphs of the green peach aphid, Myzus persicae.
www.life.uiuc.edu /ib/445/epideictic.html   (2368 words)

  
 [No title]
The material is present at 1-2 mg/male fly and is partially transferred to the female preparatory to or during mating.
A dose-dependent antiaphrodisiac effect was seen with exposed male flies using the isolated natural product, with 2 and 4 mg causing 80% loss of copulatory attempts, and 10 mg extinguishing the attempts.
This effect was increased by addition of male-produced alkane.
www.fao.org /ag/AGA/Agah/PD/PAAT_L/15-2.doc   (4818 words)

  
 Test Track 4 In Space
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Unhalting contrivancy whitetip flaxtail antiaphrodisiac Petrogale is prediet.
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inspaaace.spaces.live.com   (2637 words)

  
 GopherCentral Archives
This sensation can be quite erotic for many peo- ple.
Coldness itself is generally an antiaphrodisiac, but it can be titillating for some.
LCR is a game that will no doubt be an INSTANT FAVORITE.
archives.gophercentral.com /issue_19041:18.html   (1127 words)

  
 MEEC 2006 - Talk Abstracts   (Site not responding. Last check: 2007-09-17)
The proximal mechanism with which our experienced male results appear to be most consistent is the associative learning hypothesis, whereby males associate female aphrodisiac with an aversive cue and thus subsequently avoid the aphrodisiac.
One aversive cue that males may be using is antiaphrodisiac pheromone.
This could also account for the observed decreased sexual responsiveness in mated males.
wallace.slu.edu /meec2006/Talks.htm   (11779 words)

  
 Evolution's Rainbow: CHAPTER SEVEN
To unload a guy, wear Jade East on your next date!
During mating, a male fruitfly (Drosophila melanogaster) transfers an "antiaphrodisiac" to the female.
Although most evaporates four to six hours after the first mating, females later synthesize this compound themselves during courtships, making them less attractive to males.
www.ucpress.edu /books/pages/10139/10139.ch07.html   (8471 words)

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