HOME >> MEDICINE >> NEWS
Estrogen plays different role during stress in black and white teens

Estrogen seems to play a different role during stress in black and white girls, a difference that may help explain higher cardiovascular disease rates in blacks, researchers have found.

Using a model that mimics common life stressors, researchers found estrogen levels drop during stress in healthy black girls but remain consistent in whites, said Dr. Gregory Harshfield, director of the Medical College of Georgia's Georgia Prevention Institute.

"Estrogen, which helps blood vessels dilate, is good for your blood vessels and if you lose that protection during periods of stress in the day it may contribute to the early development of heart disease we typically see in black women," says Dr. Harshfield.

Research being presented during the 21st Annual International Interdisciplinary Conference on Hypertension and Related Cardiovascular Risk Factors in Ethnic Populations in Atlanta June 23-26 looked at 48 mostly female teens with normal blood pressure.

Researchers found the greatest changes in blood pressure response to stress in black girls and blood samples taken before, during and one hour after playing a competitive video game showed their estrogen levels dropped during stress and went back up afterward.

"Conventional thinking tells us estrogen is not normally a major player in regulating blood pressure during stress," says Dr. Harshfield. "This tells us sex hormones do play a role in regulating blood pressure but, unfortunately, it's a bad one in black females."

Estrogen influences blood pressure by releasing nitric oxide, a vasodilator, and by blunting the response of the sympathetic nervous system the fight or flight response as well as angiotensin II, a vasodilator. Estrogen is believed to be one of the main reasons women have lower rates of heart disease than men until after menopause, says Martha Castles, research manager, who is presenting the research.

"We are now thinking that when black girls are und
'"/>

Contact: Toni Baker
tbaker@mcg.edu
706-721-4421
Medical College of Georgia
23-Jun-2006


Page: 1 2

Related medicine news :

1. Estrogen is important for bone health in men as well as women
2. Estrogen plus testosterone therapy may increase risk of breast cancer in postmenopausal women
3. Estrogen-progestin menopausal hormone therapy and risk of lobular and tubular breast cancer
4. Estrogen therapy does not appear to protect postmenopausal women from heart disease
5. Estrogen, estrogen-like drugs ability to protect brain after stroke under study
6. Blood inflammation plays role in Alzheimers disease
7. Spirituality plays role in breast cancer information processing for African-American women
8. Strong emotions in Shakespeares plays lead to fits and fatalities
9. Mutation plays key role in hypertension
10. Anticipation plays a powerful role in human memory, brain study finds
11. Protein plays broader role than originally thought in neurofibromatosis

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


(Date:10/13/2017)... ... October 13, 2017 , ... Many families have long-term ... long-term care insurance companies have a waiver for care if the client has a ... when the family pays for care, is often waived, so the benefits from their ...
(Date:10/13/2017)... ... October 13, 2017 , ... Global Healthcare Management’s 4th ... Park in Milford, NJ. This free event, sponsored by Global Healthcare Management’s CEO, ... The fun run is geared towards children of all ages; it is a non-competitive, ...
(Date:10/13/2017)... ... October 13, 2017 , ... ... Software Development, has been awarded a contract by the Center for Medicare and ... aims to accelerate the enterprise use of Agile methodologies in a consistent and ...
(Date:10/12/2017)... ... 2017 , ... First Healthcare Compliance (FHC), an industry leader ... range of technology and learning solutions at the 68th Annual American Healthcare Association ... held October 14–18, 2017 at the Mandalay Bay Resort in Las Vegas, Nevada. ...
(Date:10/12/2017)... ... 2017 , ... The company has developed a suite of ... authorities worldwide. From Children’s to Adults 50+, every formula has been developed by ... , These products are also: Gluten Free, Non-GMO, Vegan, Soy Free, Non-Dairy*, Preservative ...
Breaking Medicine News(10 mins):
(Date:9/22/2017)... , Sept. 22, 2017  As the latest Obamacare ... Bill Cassidy (R-LA) and Lindsey Graham ... that the medical device industry is in an odd ... tax, the 2.3% excise tax on medical device sales ... also want covered patients, increased visits and hospital customers ...
(Date:9/19/2017)... Sept. 19, 2017 HistoSonics, Inc., a venture-backed medical device company developing a non-invasive, ... tissues, announced three leadership team developments today:   ... ... ... Veteran medical device executive Josh Stopek , PhD, ...
(Date:9/18/2017)... KALAMAZOO, Mich. , Sept. 18, 2017 /PRNewswire/ ... and OptiMed Specialty Pharmacy of Kalamazoo, Mich. ... a strategic hub service that expedites and streamlines patient ... spirometer, Spiro PD 2.0, and wellness management services.  ... a medical device used to measure lung function for ...
Breaking Medicine Technology:
Cached News: