Navigation Links
Estrogenic plants linked to altered hormones, possible behavior changes in monkeys
Date:11/19/2012

ss changes in hormone levels, the researchers collected fecal samples once a week from each of 10 adult males in the group (a separate study examining phytoestrogens in females is ongoing). More than 407 samples were collected and analyzed for estradiol and cortisol levels.

The researchers found seasonal variation in the consumption of estrogenic plants, which made up 0.7 percent to as much as 32.4 percent of the red colobus diet in any given week. For red colobus adult males, higher consumption of estrogenic plants corresponded to higher levels of estradiol and cortisol, two steroid hormones important to reproduction and the stress response.

Phytoestrogens are also found in human foods, especially soy and soy-based products. Millettia dura, the tropical tree that was most important to red colobus monkey hormone levels and social behaviors, is a close relative of soy.

"With all of the concern today about phytoestrogen intake by humans through soy products, it is very useful to find out more about the exposure to such compounds in living primates and, by analogy, human ancestors," said study co-author Katharine Milton, professor in UC Berkeley's Department of Environmental Science, Policy and Management and an expert on the dietary ecology of primates. "This is particularly true when determining the influence of phytoestrogens on reproductive behavior, which is the whole keystone of natural selection."

The study authors cautioned against overinterpreting the power of phytoestrogens in altering behavior, however. They emphasized that estrogenic plant consumption is just one of multiple factors influencing primate hormone levels and behavior. Notably, the primates' own endogenous hormone levels were the stronger predictor of certain behaviors, while phytoestrogens played a secondary role.

The researchers noted that the tendency for certain behaviors to occur can be affected by complex interactions between endogen
'/>"/>

Contact: Sarah Yang
scyang@berkeley.edu
510-643-7741
University of California - Berkeley
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Plants and soils could exacerbate climate change as global climate warms
2. CSHL-led team discovers new way in which plants control flower production
3. MicroRNAs in plants: Regulation of the regulator
4. Protected areas in East Africa may not be conserving iconic plants
5. Superbug MRSA identified in US wastewater treatment plants
6. Plants recognise pathogenic and beneficial microorganisms
7. E. coli adapts to colonize plants
8. Plants provide accurate low-cost alternative for diagnosis of West Nile Virus
9. Pitt biologist receives $2 million to study genetic diversity of plants worldwide
10. Scientists uncover mechanism by which plants inherit epigenetic modifications
11. New gene could lead to better bug-resistant plants
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Estrogenic plants linked to altered hormones, possible behavior changes in monkeys
(Date:9/15/2014)... evolution experiment scientists from GEOMAR Helmholtz Centre for ... Sea Fisheries have demonstrated for the first time, ... the world,s oceans, Emiliania huxleyi , can ... temperatures. In their study, the researchers found no ... to these two aspects of climate change would ...
(Date:9/15/2014)... that the proteins in our cells cooperate with one ... tens of thousands of different proteins find the correct ... human body, brain and nervous system. A recent breakthrough ... busted down the door and provided a look at ... , Professor emeritus Jens Jrgen Led of the University ...
(Date:9/15/2014)... September 15, 2014: Globally, cardiovascular disease (CVD) claims 17 ... pressure take an additional 9.4 million. 1 New ... Fed Lipid Congress in Montpellier, France on September 15, ... a beneficial role. , At the Milk ... association between milk and risk for hypertension and CVD ...
Breaking Biology News(10 mins):Small algae with great potential 2Small algae with great potential 3Protein courtship revealed through chemist's lens 2Protein courtship revealed through chemist's lens 3Dairy consumption linked to lower blood pressure and cardiovascular disease risk 2
... recognition of her ongoing support of the nation,s human ... 2012 recipient of the National Space Biomedical Research Institute,s ... was honored today during the official opening of a ... Baylor College of Medicine,s Center for Space Medicine (CSM). ...
... Wildlife Conservation Society, the ARC Centre for Excellence ... more than 40 coral reefs in the Indian ... between local communities, conservation groups, and governmentsprovides one ... The finding is the outcome of the largest ...
... ColdQuanta Inc. of Boulder and the University of Colorado ... physics research developed by CU-Boulder and SRI International. The ... new form of matter created just above absolute zero. ... be used to dramatically increase the performance of devices ...
Cached Biology News:Space research institute honors Sen. Hutchison with Pioneer Award 21 solution to global overfishing found 21 solution to global overfishing found 3Ultracold matter technology from CU and SRI International licensed to Boulder's ColdQuanta 2
(Date:9/16/2014)... Norris, TN (PRWEB) September 16, 2014 ... several new initiatives to position themselves for ... capabilities for labeling and encoding, Pharma Packaging ... adding new hardware and software and new ... on current Good Manufacturing Practices (cGMP), Pharma ...
(Date:9/16/2014)... 2014 Convoy Therapeutics, Inc., a ... products to treat patients directly at the site ... SPACE™ Technology Platform announced today that John Muraski, ... at the White Hat Life Science Investor Conference™ ... Phoenix. In addition, interested individuals can meet ...
(Date:9/16/2014)... , Sept. 16, 2014  LABSCO, the leading ... products to hospitals, physician office laboratories and alternate ... October 1, 2014, it will serve as Siemens ... market segments and as a semi-exclusive sales distributor ... contiguous United States . LABSCO ...
(Date:9/16/2014)... , Sept. 16, 2014 /PRNewswire-iReach/ -- Researchers found ... test identifies patients with bone fragility fracture when ... million people worldwide are at risk of fracture ... standard bone strength test, the DEXA bone density ... Society for Bone and Mineral Research Annual Conference ...
Breaking Biology Technology:Adding Serialization Capabilities and Expanded Capacity, Pharma Packaging Solutions Is Preparing for 89th Year of Business 2Convoy Therapeutics to Present at WhiteHat Investor Conference September 18, 2014 2Convoy Therapeutics to Present at WhiteHat Investor Conference September 18, 2014 3LABSCO Secures Alliance With Siemens Healthcare Diagnostics 2LABSCO Secures Alliance With Siemens Healthcare Diagnostics 3ActiveLife's BMSi Test Provides Hope for 160 Million with Undetectable Risk of Bone Fracture 2ActiveLife's BMSi Test Provides Hope for 160 Million with Undetectable Risk of Bone Fracture 3
... May 25, 2011 SuperNova Diagnostics®, Inc., a ... health applications, today announced it has been selected ... Startup Entrepreneurs (SVASE) annual Launch: Silicon Valley 2011 ... June 7, 2011 at 1:15 p.m. PDT.  The ...
... 25, 2011 Otonomy, Inc., a ... diseases and disorders of the inner and middle ... as the company,s chief operations officer.  Mr. Wroblewski ... areas of manufacturing, product supply chain management, packaging ...
... (NPL), in collaboration with Linkping University, Sweden, have shown ... easily identified in ambient conditions using Electrostatic Force Microscopy ... only applicable to the material that consists of one ... of any number of layers is possible, the thicker ...
Cached Biology Technology:SuperNova Diagnostics® Selected to Present at Launch: Silicon Valley 2011 2Otonomy Appoints Gerald Wroblewski as Chief Operations Officer 2Otonomy Appoints Gerald Wroblewski as Chief Operations Officer 3
... new Adept CE 4100 high pressure ... flow precision, with software drive compensation, reducing ... 0.001-10mL/min are selectable in 0.001mL steps. , ... inert and bio-compatible., Pumps may be programmed ...
... The CHEF-DR III variable angle system, 220-240 ... greater than 6 Mb DNA fragments by pulsed ... electrophoresis cell, power module, variable-speed pump, 14 x ... comb holder, 15-well, 1.5 mm thick comb, screened ...
... membrane and filter paper sandwiches are composed ... two sheets of thick filter paper that ... filter paper sandwich. These 7 x 8.5 ... immunoblotting fit Ready Gel-sized gels and are ...
... Antibiotic isolated fromStreptomyces griseolusthat inhibits ... transferase activity in eukaryote ribosomes. Reported ... of cells including promyelocytic leukemia cells, ... adenocarcinoma cells. Initiates intracellular signals and ...
Biology Products: