Featured Research

from universities, journals, and other organizations

Cyclists' "Blood Doping" Associated With Cerebral Blood Clots

Date:
February 27, 2002
Source:
American Academy Of Neurology
Summary:
A recent case study has associated cerebral sinus thrombosis, a condition that may lead to tissue death in the brain, with the practice of "blood doping." Blood doping is the use of human growth hormones to increase the proportion of oxygen-carrying red blood cells in an athlete’s blood.

ST. PAUL, Minn. – A recent case study has associated cerebral sinus thrombosis, a condition that may lead to tissue death in the brain, with the practice of "blood doping." Blood doping is the use of human growth hormones to increase the proportion of oxygen-carrying red blood cells in an athlete’s blood. Thrombosis is a blood clot within a blood vessel. This method of performance enhancement is widely practiced because it is not readily detected through urine testing.

In a study published in the February 26 issue of Neurology, the scientific journal of the American Academy of Neurology, researchers in Pamplona, Spain, describe the case of a cyclist who was treated for severe headache, diagnosed as cerebral sinus thrombosis, caused by increased cerebrospinal fluid pressure on the brain.

When the cyclist’s condition did not improve with standard treatment, and after an extensive battery of laboratory tests, CT scan, and MRI, the cause was determined to be his use of erythropoietin (EPO) and growth hormone, coupled with high dose consumption of vitamin A.

"While we cannot attribute the appearance of the thrombosis to a single doping agent, the combination of drugs and high dosing of vitamins likely produced this athlete’s condition," says study author Eduardo Rocha, MD, Ph.D., of Clinica Universitaria de Navarra. "With the practice of blood doping among athletes becoming more popular, more research is necessary to devise new methods of detection, as well as more thorough evaluation of competitive athletes seeking treatment for potential doping complications," concludes Rocha. "Educating athletes about the potential health hazards of performance enhancing drugs would also be beneficial."

The American Academy of Neurology, an association of 18,000 neurologists and neuroscience professionals, is dedicated to improving patient care through education and research.

For more information about the American Academy of Neurology, visit its web site at http://www.aan.com.


Story Source:

The above story is based on materials provided by American Academy Of Neurology. Note: Materials may be edited for content and length.


Cite This Page:

American Academy Of Neurology. "Cyclists' "Blood Doping" Associated With Cerebral Blood Clots." ScienceDaily. ScienceDaily, 27 February 2002. <www.sciencedaily.com/releases/2002/02/020226075440.htm>.
American Academy Of Neurology. (2002, February 27). Cyclists' "Blood Doping" Associated With Cerebral Blood Clots. ScienceDaily. Retrieved July 22, 2014 from www.sciencedaily.com/releases/2002/02/020226075440.htm
American Academy Of Neurology. "Cyclists' "Blood Doping" Associated With Cerebral Blood Clots." ScienceDaily. www.sciencedaily.com/releases/2002/02/020226075440.htm (accessed July 22, 2014).

Share This




More Health & Medicine News

Tuesday, July 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Gilead's $1000-a-Pill Drug Could Cure Hep C in HIV-Positive People

Gilead's $1000-a-Pill Drug Could Cure Hep C in HIV-Positive People

TheStreet (July 21, 2014) New research shows Gilead Science's drug Sovaldi helps in curing hepatitis C in those who suffer from HIV. In a medical study, the combination of Gilead's Hep C drug with anti-viral drug Ribavirin cured 76% of HIV-positive patients suffering from the most common hepatitis C strain. Hepatitis C and related complications have been a top cause of death in HIV-positive patients. Typical medication used to treat the disease, including interferon proteins, tended to react badly with HIV drugs. However, Sovaldi's %1,000-a-pill price tag could limit the number of patients able to access the treatment. TheStreet's Keris Lahiff reports from New York. Video provided by TheStreet
Powered by NewsLook.com
$23.6 Billion Awarded To Widow In Smoking Lawsuit

$23.6 Billion Awarded To Widow In Smoking Lawsuit

Newsy (July 20, 2014) Cynthia Robinson claims R.J. Reynolds Tobacco Company hid the health and addiction risks of its products, leading to the death of her husband in 1996. Video provided by Newsy
Powered by NewsLook.com
Tooth Plaque Provides Insight Into Diets Of Ancient People

Tooth Plaque Provides Insight Into Diets Of Ancient People

Newsy (July 19, 2014) Research on plaque from ancient teeth shows that our prehistoric ancestor's had a detailed understanding of plants long before developing agriculture. Video provided by Newsy
Powered by NewsLook.com
Contaminated Water Kills 3 Babies in South African Town

Contaminated Water Kills 3 Babies in South African Town

AFP (July 18, 2014) Contaminated water in South Africa's northwestern town of Bloemhof kills three babies and hospitalises over 500 people. The incident highlights growing fears over water safety in South Africa. Duration: 02:22 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins