Navigation Links
Chronic exposure to estrogen impairs some cognitive functions
Date:7/31/2008

r presses," said neuroscience graduate student Victor Wang, the lead author on the study. "That's not conducive toward being rewarded."

The researchers had not expected to see such pronounced results. In fact, the study had been designed to give them baseline information for a separate inquiry into the effects of soybean estrogens on cognitive function. They planned to compare the effects of chronic estradiol exposure to the effects of chronic exposure to genistein, a phytoestrogen found in soybeans. Genistein is believed to have similar effects in the body as natural or synthetic estrogens, although no study has definitively proven that it does.

Schantz and her colleagues had focused on the prefrontal cortex because it is rich in estrogen receptor beta (ER-beta), a protein that spurs gene expression and other activities in the cell when it binds to estradiol. Genistein also activates ER-beta.

Some women take genistein supplements or eat soy-based foods to reduce hot flashes or other symptoms of menopause, Schantz said.

"Women take them thinking they'll be a safe alternative to hormone-replacement therapy and they might help hot flashes," she said.

Those who have heard that hormone replacement can improve cardiac or brain function also hope that eating soy or taking genistein supplements will have the same effects, she said.

The effects of hormone replacement therapy (HRT) are more complex and problematic than once thought. A recent large-scale study of HRT in post-menopausal women was stopped because of an increased risk of stroke and blood clots in women taking estrogen alone, and a higher than average incidence of breast cancer, cardiovascular disease, blood clots and stroke in women taking estrogen and progesterone.

Studies of estrogen's effects on cognition have also had mixed results. In earlier studies, for example, psychology professor Donna Korol, a collaborator on the current project, found
'/>"/>

Contact: Diana Yates
diya@illinois.edu
217-333-5802
University of Illinois at Urbana-Champaign
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Treating chronic pain, migraine & muscle spasticity through inhibition of neurotransmitter glutamate
2. Domestic violence associated with chronic malnutrition in women and children in India
3. Diet support helps chronic kidney patients
4. SinuNase Phase 3 show almost 100 percent of chronic sinusitis cases are from fungal-induced inflamma
5. OSU study shows exposure to bad air raises blood pressure
6. Early exposure to common weed killer impairs amphibian development
7. Exposure to low levels of radon appears to reduce the risk of lung cancer, new study finds
8. Low exposure to asbestos-like mineral from Montana vermiculite may up lung disease risk
9. Moderate prenatal exposure to alcohol and stress in monkeys can cause touch sensitivity
10. MIT: Prenatal arsenic exposure detected in newborns
11. Time spent in car drives up air pollution exposure

Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Chronic exposure to estrogen impairs some cognitive functions
Chronic exposure to estrogen impairs some cognitive functions
(Date:11/4/2009)...MADISON, N.J., Oct. 20 Q...orld,s leading provider of diagnostic testing, inf...d quarter ended September 30, 2009, income from co... per diluted share, from $160 million, or $0.81 pe... 2008, third quarter results were reduced by a $0....
(Date:11/4/2009)...BEDFORD, Mass., Oct. 20 ...f broadband technology and biometrics software, to...ter ended September 30, 2009. ,, Michael Tzan... said, "Earlier today, we announced an agreement t...o Lantiq, a new fabless semiconductor company bein...
(Date:11/4/2009)...CARLSBAD, Calif., Oct. 23 GenVault...osample management for genomic discovery, medicine...llis, Ph.D., GenVault,s President and CEO, will be...ng place on October 26th and 27th in La Jolla, CA....ovide an overview of the company together with rec...
Breaking Biology News(10 mins):Quest Diagnostics Reports Strong Performance in Third Quarter 2009 2Quest Diagnostics Reports Strong Performance in Third Quarter 2009 3Quest Diagnostics Reports Strong Performance in Third Quarter 2009 4Quest Diagnostics Reports Strong Performance in Third Quarter 2009 5Quest Diagnostics Reports Strong Performance in Third Quarter 2009 6Quest Diagnostics Reports Strong Performance in Third Quarter 2009 7Quest Diagnostics Reports Strong Performance in Third Quarter 2009 8Quest Diagnostics Reports Strong Performance in Third Quarter 2009 9Quest Diagnostics Reports Strong Performance in Third Quarter 2009 10Quest Diagnostics Reports Strong Performance in Third Quarter 2009 11Quest Diagnostics Reports Strong Performance in Third Quarter 2009 12Quest Diagnostics Reports Strong Performance in Third Quarter 2009 13Quest Diagnostics Reports Strong Performance in Third Quarter 2009 14Quest Diagnostics Reports Strong Performance in Third Quarter 2009 15Quest Diagnostics Reports Strong Performance in Third Quarter 2009 16Quest Diagnostics Reports Strong Performance in Third Quarter 2009 17Aware, Inc. Reports Third Quarter 2009 Financial Results 2Aware, Inc. Reports Third Quarter 2009 Financial Results 3Aware, Inc. Reports Third Quarter 2009 Financial Results 4Aware, Inc. Reports Third Quarter 2009 Financial Results 5Aware, Inc. Reports Third Quarter 2009 Financial Results 6Aware, Inc. Reports Third Quarter 2009 Financial Results 7GenVault Corporation to Present at the 2009 BIOCOM Investor Conference 2National Education Association Health Information Network 28NEA HIN 29 and The Clorox Company Offer Free Disinfecting Wipes to Teachers Nationwide 55911 1National Education Association Health Information Network 28NEA HIN 29 and The Clorox Company Offer Free Disinfecting Wipes to Teachers Nationwide 55911 2National Education Association Health Information Network 28NEA HIN 29 and The Clorox Company Offer Free Disinfecting Wipes to Teachers Nationwide 55911 3Regence Foundation Awards Nearly 24250 000 in Grants to Northwest Nonprofits 55909 1Regence Foundation Awards Nearly 24250 000 in Grants to Northwest Nonprofits 55909 2Pennsylvania Department of Health Launches Online H1N1 Vaccine Registry 55908 1Pennsylvania Department of Health Launches Online H1N1 Vaccine Registry 55908 2
...le difference between the composition of the genet... and that of conventionally bred varieties. They o...orporated with gene technology. This conclusion ha...titute of Molecular Plant Physiology and their col...blished in the Proceedings of the National Academy...
...ve uncovered new information about a specific mech...umor cells. The findings, published in the June is...e about epidermal growth factor receptor (EGFR). ,... stimulates cell growth by transmitting growth fac... present at abnormally elevated levels in human ca...
...of African fish supply needed by 2020 just to main...cal for nourishing the poor and for helping Africa...tion of problems like HIV and AIDS, the New Partne...ish Center and partners are making an urgent appea...engthen the contribution of fisheries to economic ...
Other Biology News:A slight difference and significant similarities 2Physical and functional interaction of key cell growth molecules linked to cancer 2Leptin-signaling Protein Maintains Normal Body Weight And Energy Balance In Mice 2Leptin-signaling Protein Maintains Normal Body Weight And Energy Balance In Mice 3Leptin-signaling Protein Maintains Normal Body Weight And Energy Balance In Mice 4Leptin-signaling Protein Maintains Normal Body Weight And Energy Balance In Mice 5
(Date:11/5/2009)... , Conference Call on Thursday, November 5, 2...nd VANCOUVER Nov. 5 /PRNewswire-FirstCall/ - OncoG...mpany") (NASDAQ: OGXI ) today reported unaudited ...onths ended September 30, 2009 and reviewed the Co...,, The following consolidated results reflect t...
(Date:11/5/2009)... , SAN DIEGO, CA, November 5, 2009 /PRNewswir...company focused on using proprietary taste recepto...edients for the food, beverage, and ingredient sup...and reported financial results for the third quart...illion for the third quarter of 2009, compared to ...
(Date:11/5/2009)... , LASIK Surgery and visi...Surgeons directory were actively involved at the r...y (AAO) 2009 Annual Meeting in San Francisco, Cali...felder, MD, Dr. Jonathan Davidorf, MD, Dr. Peter R...lley, MD, Dr. R. Wayne Bowman, MD, Dr. Edward Manc...
(Date:11/4/2009)... , PETERSBURG, Va., Nov. 4 /PRNewswire-FirstC... announced today that the company plans to introdu...y its subsidiary, Rock Creek Pharmaceuticals, for ... inVentiv Health, Inc . (Nasdaq: VTIV). inVenti...ion solutions for every stage of the product lifec...
Breaking Biology Technology:OncoGenex Reports Third Quarter 2009 Financial Results 2OncoGenex Reports Third Quarter 2009 Financial Results 3OncoGenex Reports Third Quarter 2009 Financial Results 4OncoGenex Reports Third Quarter 2009 Financial Results 5OncoGenex Reports Third Quarter 2009 Financial Results 6OncoGenex Reports Third Quarter 2009 Financial Results 7OncoGenex Reports Third Quarter 2009 Financial Results 8SENOMYX ANNOUNCES CORPORATE UPDATE AND THIRD QUARTER 2009 FINANCIAL RESULTS 2SENOMYX ANNOUNCES CORPORATE UPDATE AND THIRD QUARTER 2009 FINANCIAL RESULTS 3SENOMYX ANNOUNCES CORPORATE UPDATE AND THIRD QUARTER 2009 FINANCIAL RESULTS 4SENOMYX ANNOUNCES CORPORATE UPDATE AND THIRD QUARTER 2009 FINANCIAL RESULTS 5SENOMYX ANNOUNCES CORPORATE UPDATE AND THIRD QUARTER 2009 FINANCIAL RESULTS 6SENOMYX ANNOUNCES CORPORATE UPDATE AND THIRD QUARTER 2009 FINANCIAL RESULTS 7SENOMYX ANNOUNCES CORPORATE UPDATE AND THIRD QUARTER 2009 FINANCIAL RESULTS 8SENOMYX ANNOUNCES CORPORATE UPDATE AND THIRD QUARTER 2009 FINANCIAL RESULTS 9SENOMYX ANNOUNCES CORPORATE UPDATE AND THIRD QUARTER 2009 FINANCIAL RESULTS 10SENOMYX ANNOUNCES CORPORATE UPDATE AND THIRD QUARTER 2009 FINANCIAL RESULTS 11SENOMYX ANNOUNCES CORPORATE UPDATE AND THIRD QUARTER 2009 FINANCIAL RESULTS 12SENOMYX ANNOUNCES CORPORATE UPDATE AND THIRD QUARTER 2009 FINANCIAL RESULTS 13SENOMYX ANNOUNCES CORPORATE UPDATE AND THIRD QUARTER 2009 FINANCIAL RESULTS 14Leading Vision Correction Experts in Trusted LASIK Surgeons Directory Educate Fellow Doctors at AAO Annual Meeting 2Leading Vision Correction Experts in Trusted LASIK Surgeons Directory Educate Fellow Doctors at AAO Annual Meeting 3Leading Vision Correction Experts in Trusted LASIK Surgeons Directory Educate Fellow Doctors at AAO Annual Meeting 4Leading Vision Correction Experts in Trusted LASIK Surgeons Directory Educate Fellow Doctors at AAO Annual Meeting 5Leading Vision Correction Experts in Trusted LASIK Surgeons Directory Educate Fellow Doctors at AAO Annual Meeting 6Leading Vision Correction Experts in Trusted LASIK Surgeons Directory Educate Fellow Doctors at AAO Annual Meeting 7Leading Vision Correction Experts in Trusted LASIK Surgeons Directory Educate Fellow Doctors at AAO Annual Meeting 8Leading Vision Correction Experts in Trusted LASIK Surgeons Directory Educate Fellow Doctors at AAO Annual Meeting 9Star Scientific Plans Worldwide Marketing and Sales of CigRx(TM) Nutraceutical in Partnership with inVentiv Health 2Star Scientific Plans Worldwide Marketing and Sales of CigRx(TM) Nutraceutical in Partnership with inVentiv Health 3Star Scientific Plans Worldwide Marketing and Sales of CigRx(TM) Nutraceutical in Partnership with inVentiv Health 4
... in life sciences for 2004 and what impact will th... happened in 2004 in the land of biotech and pharm...ing Vioxx off the market due to potent cardiovascu... FDA for not being on top of a companys drug repor...Celebrex in the last two days has confirmed that t...
...consin Medical Schools dean of more than a decade ... 2005 to go back to research. , , Philip M. Farrel...s on cystic fibrosis, an inherited condition that ...ntinued this research while a dean, making advance...ns. The university will search nationally for a su...
...ostication and this one is no different. Like a c...hnology industry has been laboring up, up, up the ... year ahead will offer a bit of payback, a little ...sure to picture a few playful loops, not the white... , ,The next 12 months hold promise and optimism, ...
Other Biology Technology:The greatest life-science developments of 2004 2The greatest life-science developments of 2004 3The greatest life-science developments of 2004 4The greatest life-science developments of 2004 5The greatest life-science developments of 2004 6The greatest life-science developments of 2004 7Year ahead offers payoff for hard work 2Year ahead offers payoff for hard work 3
Rabbit Anti-Shh Polyclonal Antibody, Unconjugated from Cell Signaling Technology
Mouse Anti-Cohesin (Scc1 / Rad21) Monoclonal Antibody, Unconjugated, Clone CM110-2C10 from MBL International
Rabbit Anti-Asparagine synthetase Monoclonal Antibody, Unconjugated, Clone EP282Y from Abcam
Rabbit Anti-melatonin Antibody, Unconjugated from Cell Sciences
Biology Products: