HOME >> BIOLOGY >> NEWS
In male monkeys, too much soy has adverse effects

WINSTON-SALEM, N.C. While soy may be beneficial to women in a variety of ways, research in monkeys suggests that it could have an adverse effect on the behavior of men, according to researchers from Wake Forest University Baptist Medical Center.

Reporting in the current issue of the scientific journal Hormones and Behavior, the researchers found that in male monkeys, "long-term consumption of a diet rich in soy isoflavones can have marked influences on patterns of aggression and social behavior." Isoflavones are a naturally occurring plant estrogen in soy protein.

"Although considerable attention has been directed at the potentially beneficial effects of isoflavones in reducing the risk of various cancers, osteoporosis, cardiovascular disease and postmenopausal symptoms, less effort has been invested in characterizing neurobehavioral effects," according to the study.

People have the concept that soy is only beneficial, said Jay R. Kaplan, Ph.D., professor of comparative medicine and anthropology, one of the investigators. "There is the thought that what is good for some is good for all and more is better."

But this research points out that not only does the dose make a difference, but so does the sex of the consumer, Kaplan said, adding that the study is consistent with emerging literature showing that soy can have a negative impact on the behavior of male rodents. Previous studies have shown no difference in aggression in females given large doses of soy, Kaplan said.

The study was done over 15 months with adult male monkeys who were divided into three groups and fed different amounts and types of protein. One group had about 125 mg of isoflavones a day. The second group had half that amount, and the third group's protein came from milk and animal sources.

"In the monkeys fed the higher amounts of isoflavones, frequencies of intense aggressive and submissive behavior were elevated," according to the study. "In addition, the propo
'"/>

Contact: Karen Richardson
krchrdsn@wfubmc.edu
336-716-4587
Wake Forest University Baptist Medical Center
30-Apr-2004


Page: 1 2

Related biology news :

1. Vaccine controls AIDS in monkeys, researchers report in Science
2. Immunity gene predicts severe adverse drug reaction
3. Social stress adversely affects digestive function in subordinate cichlid fish
4. Ovarian stimulation in mice adversely affects embryo development and implantation
5. 9/11 search-and-rescue dogs exhibit few effects from exposure to disaster sites
6. Long-term effects of carbon monoxide poisoning are an autoimmune reaction
7. Marathoning mice could have Olympian effects on obesity
8. Iron can have negative side effects on people with kidney disease
9. Early dexamethasone exposure has long-term neurodevelopment, neuroendocrine effects
10. Manipulating biotope space can enhance beneficial biodiversity effects
11. The Mediterranean connection: ecological effects of El Nio in the Northern hemisphere

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/21/2016)... Massachusetts , March 22, 2016 ... facial recognition with passcodes for superior security   ... ), a leading provider of secure digital communications services, ... their biometric technology and offer enterprise customers, particularly those ... secure facial recognition and voice authentication within a mobile ...
(Date:3/17/2016)... 17, 2016 ABI Research, the leader ... global biometrics market will reach more than $30 ... from 2015. Consumer electronics, particularly smartphones, continue to ... anticipated to reach two billion shipments by 2021 ... Pavlakis , Research Analyst at ABI Research. "Surveillance ...
(Date:3/15/2016)... Yissum Research Development Company of the ... the Hebrew University, announced today the formation of ... various human biological indicators. Neteera Technologies has completed its ... investors. ... electromagnetic emissions from sweat ducts, enables reliable and speedy ...
Breaking Biology News(10 mins):
(Date:5/4/2016)... ... May 04, 2016 , ... Proove Biosciences, Inc. , the ... partnership with McGill University . The partnership is designed to advance research in ... to help patients in pain. With the new agreement, researchers at Proove Biosciences are ...
(Date:5/4/2016)... , ... May 04, 2016 , ... PBI-Gordon Corporation is ... Agricultural Sales. , Doug began his career at PBI-Gordon in February 1988, after ... a wide variety of roles, ranging from customer service to national product manager, to ...
(Date:5/3/2016)... ... 03, 2016 , ... In a list published by the Boston Business Journal, ... private companies; a small percentage of the state's 615,000+ small businesses. The list examined ... in revenue from 2012 to 2015. , As this award comes on ...
(Date:5/3/2016)... , ... May 03, 2016 , ... ... NeuroTech NYC , the sensor and data driven conferences, will take place on June 7-8, 2016, ... UnitedHealth's Vidya Raman-Tangella on incorporating technology -- including AR/VR, machine learning, apps, ...
Breaking Biology Technology:
Cached News: