HOME >> MEDICINE >> NEWS
New buzz on coffee: It's not the caffeine that raises blood pressure

DALLAS, Nov. 19 People who enjoy the occasional decaf latte may be getting more of a lift than they know, scientists report in today's rapid access issue of Circulation: Journal of the American Heart Association.

Swiss scientists studying caffeine's effects in a small group of people report markedly elevated blood pressure and increased nervous system activity when occasional coffee drinkers drank a triple espresso, regardless of whether or not it contained caffeine.

Surprisingly, people who drank coffee on a regular basis showed increased stimulation of sympathetic nerve pathways but no increase in blood pressure.

This is the first time such disparities in reactions to coffee have been reported, says lead researcher Roberto Corti, M.D., a cardiologist at University Hospital in Zurich.

The results suggest that some unknown ingredient or ingredients in coffee not caffeine is responsible for cardiovascular activation, he explains. Coffee contains several hundred different substances.

"Until now we have attributed the cardiovascular effects of coffee to caffeine, but we found non-coffee drinkers given decaffeinated coffee also display these effects," Corti says. "This demonstrates how little we know about the effects of one of our most popular beverages and the most abundantly consumed stimulant worldwide.

"Coffee's cardiovascular safety remains controversial," he says. "The possible health hazards have been related to its main ingredient caffeine."

The researchers measured blood pressure, heart rate and muscle sympathetic nervous system activity (MSA) in 15 healthy volunteers (ages 27 to 38) six habitual coffee drinkers and nine who either abstained or drank coffee only occasionally. Measurements were recorded before, during and after participants consumed a triple espresso, a decaf triple espresso or intravenous administration of the equivalent amount of caffeine, or a placebo. None of the subjects knew whether they
'"/>

Contact: Carole Bullock
214-706-1279
American Heart Association
18-Nov-2002


Page: 1 2 3

Related medicine news :

1. Small, frequent doses of caffeine best strategy for staying awake
2. New study: Small, frequent doses of caffeine best strategy for staying awake
3. Link between caffeine consumption, high blood pressure found in adolescents
4. Dietary supplements containing ephedra and caffeine may cause heart problems
5. UGA researchers find caffeine reduces muscle pain during exercise
6. Rutgers research shows caffeine may prevent skin cancer
7. Study points to potential role for caffeine in reducing the risk of Parkinsons disease
8. Hormone therapy controversy raises drug safety issues
9. NYU Child Study Center raises a record $3.4 million at Seventh Annual Child Advocacy Award Dinner
10. Heavy drinking raises the risk of early death after heart attack
11. Lord Sainsbury praises the work of the UKs Innovative Manufacturing Research Centres

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: New buzz coffee not the caffeine that raises blood pressure

(Date:8/23/2014)... The MPWMD Board of Directors voted on Monday, August 18th ... of water for commercial and industrial properties. This was ... Archworks, LLC in Carmel, California. , This is a ... district in the State of California has approved this technology ... this time can now be used as a sole source ...
(Date:8/23/2014)... Professional kitchen employees, prospective chefs and food ... for Food Safety Certification exams thanks to the free ... , Dynamic Path announced the release of its Food ... review questions for culinary industry students and professionals. ... of the ServSafe® Food Safety Certification, National Registry of ...
(Date:8/23/2014)... 2014 Pixel Film Studios, a leader of ... release of ProIntro Vol.3, a customizable title tool for ... tile just by dragging ProIntro Vol.3 in their timeline" says ... a definite time saver and i think our users will ... beautifully designed titles made with Final Cut Pro X users ...
(Date:8/23/2014)... Young adults in Athens, GA who find that they ... the phone and call the new helpline which can offer support ... , Troubled Teen Athens is a wonderful resource for an adolescent ... necessary steps to end substance abuse once and for all. When ... friends or peers when really they should put their faith in ...
(Date:8/23/2014)... Dealing with a drug or alcohol substance abuse ... is a child. Adolescent addiction has been an important issue ... a new helpline is now providing a valuable resource for ... a real addiction recovery center. , The Troubled Teens Atlanta ... the community. By calling (404) 975-2762, parents and their teens ...
Breaking Medicine News(10 mins):Health News:Historical Moment in the Monterey Peninsula, Brings Drought Relief Solution to California, with the Help of EcoloBlue and AWG Technology 2Health News:Food Handler Safety Certification Made Easy with Dynamic Path 2Health News:A new plugin was announced today, ProIntro Vol.3 from Pixel Film Studios for Final Cut Pro X 2Health News:Teenagers in Athens, GA are Locating Addiction Recovery Thanks to New Helpline 2Health News:Atlanta’s New Troubled Teen Helpline Is Making a Difference in the Community 2
(Date:8/22/2014)...  Medical Science Liaisons serve as a critical bridge ... sector. As the impact of technology in the marketplace ... Science Liaisons (MSLs) interact with physicians and other thought ... to not only share important disease and therapy information ... interactions across geographies and therapeutic areas. While ...
(Date:8/22/2014)... , August 22, 2014 ... Markets ( http://www.researchandmarkets.com/research/x34qgv/global_laboratory ) has announced the addition ... 2014-2018"  report to their offering.  ... is an essential instrument for any modern ... precise weighing of materials. It can be ...
(Date:8/22/2014)... 2014 Research and ... of the  "Global Operating Room Equipment Market ...      (Logo: http://photos.prnewswire.com/prnh/20130307/600769) , ,An operating room ... in a healthcare facility used to perform ... advanced equipment, which ensures patient care and ...
Breaking Medicine Technology:iPads Enhancing Medical Science Liaison Interactions with Thought Leaders, New Study Shows 2Global Laboratory Electronic Balance Market 2014-2018: Key Vendors are A&D Company, Mettler-Toledo, Sartorius and Thermo Fisher 2Global Operating Room Equipment Market 2014-2018: Key Vendors are Getinge, STERIS, Stykron and TRUMPF Medical Systems 2
Cached News: