The Claim: Coffee Eases Headaches From Epidural Injections Oct 21, 2008
One theory is that the caffeine narrows the cerebral blood vessels, which helps reverse the vasodilation that occurs when a puncture causes cerebrospinal fluid to leak. Research, however, suggests it does not help. (Atlanta Journal-Constitution -- Health)
Enriched Cocoa Improves Blood Flow in Diabetics May 29, 2008
"This is a nice study, confirming and extending previous work that cocoa compounds can enhance vasodilation in humans to diabetes patients," said Henriette van Praag, an investigator in the U.S. National Institute on Aging's Neuroplasticity and Behavior Unit. It wasn't a perfect study, she added. (MEDLINEplus)
CV Therapeutics and Astellas Announce FDA Approval for Lexiscan(TM) (regadenoson) Injection Apr 11, 2008
The A2A adenosine receptor is the adenosine receptor subtype responsible for coronary vasodilation ... Lexiscan was designed to produce coronary vasodilation and increase coronary blood flow by activation of the A2A adenosine receptor ... Adenosine receptor agonists, including Lexiscan, induce arterial vasodilation and hypotension. (PR Newswire)
Studies Probe Weaknesses in Donated Blood Oct 9, 2007
Its ability to induce vasodilation likewise diminishes, they said. "Everybody thinks if you give back oxygen-carrying red blood cells, you will get more oxygen to tissues," said Stamler. (Health-Finder)
Chronic Methamphetamine Abuse Linked To Cardiovascular Disease, Study Suggests Jun 26, 2007
The study also showed that even limited daily access to the drug was enough to produce an over-expression of vascular endothelial growth factor (VEGF), a potent signaling cytokine involved in angiogenesis and vasodilation. "Our data suggest that even methamphetamine use at lower doses may be enough to increase VEGF to potentially detrimental levels," Janda said. (Science Daily)
Pregnant at the Spa: Do's and Don'ts Jun 6, 2007
It can cause vasodilation, which can be bad for the unborn child. Warm baths are totally fine and can be very relaxing, but very hot environments that alter your body temperature above 98 degrees should be avoided. (Fox News)
Impact of a chemical component of diesel exhaust particles May 1, 2007
The study, Effects of Age, Gender, and Estrogen on Endothelium-Dependent Vasodilation Subsequent to Phenanthraquinone Exposure, was conducted by Rhonda D. Prisby, Judy Muller-Delp and Timothy R. Nurkiewicz, all of the Center for Interdisciplinary Research in Cardiovascular Sciences at the West Virginia University School of Medicine in Morgantown, WV, USA. Dr. Nurkiewicz is presenting the findings on behalf of the Universitys interdisciplinary cardiovascular research team ... Against this... (EurekAlert!)
LOL - Laughing Out Loud Mar 31, 2007
Vasoconstriction and vasodilation, and hence the control of blood pressure. Blood clotting (thrombosis and fibrinolysis). (Suite101.com)
Heart Disease In A Marathon Runner: Is Too Much Exercise A Bad Thing? Mar 19, 2007
An ultrasound device was used to measure what is known as flow-mediated vasodilation. It shows how well the endothelium responds to a sudden increase in the flow of blood through an artery in the upper arm. (Science Daily)
Active ingredient in common Chinese herb shown to reduce hypertension Jan 19, 2007
The topical application of tanshinone IIA at one g/ml and five g/ml caused significant dose-related vasodilation, indicated by the increased agent/control ratio of arteriolar diameters from 1 ... As a result of the findings the researchers concluded that tanshinone IIA: (1) significantly reduced blood pressure in hamsters, (2) enhanced the expression of endothelial nitric oxide synthase, (3) increased the production of nitric oxide and (4) induced blood pressure changes through vasodilation... (EurekAlert!)
Milk Eliminates Cardiovascular Health Benefits Of Tea Jan 13, 2007
To extend our findings to a functional model, we determined vasodilation in rat aortic rings by exposing them to tea on its own and tea with individual milk proteins added, and got the same result. . (Playfuls.com)
Tea minus milk - for your heart's sake Jan 12, 2007
"To extend our findings to a functional model, we determined vasodilation in rat aortic rings by exposing them to tea on its own and tea with individual milk proteins added, and got the same result.". The researchers tested the proteins in milk and found it was caseins that accounted for the inhibiting effect. (Manchester Evening News)
For Vascular Benefit of Black Tea, Hold the Milk Jan 11, 2007
In a study of 16 postmenopausal women, those who drank about two cups of black tea without milk had a greater than four-old increase in flow-mediated vasodilation from baseline in the forearm brachial artery (P. However, those who drank a mix of 90% black tea with 10% skimmed milk had no more of an increase in vasodilation than if they had consumed two cups of hot water, Dr. Stangl and colleagues reported online today in European Heart Journal. (MedPage Today)
Milk Eliminates Cardiovascular Health Benefits Of Tea, Researchers Warn Jan 10, 2007
To extend our findings to a functional model, we determined vasodilation in rat aortic rings by exposing them to tea on its own and tea with individual milk proteins added, and got the same result. Milk contains a number of different proteins: by testing each one separately, the researchers found that it was the three caseins that accounted for the inhibiting effect, probably by forming complexes with tea catechins. (Science Daily)
Why putting milk in your cuppa could be a bad idea Jan 9, 2007
Prof Steptoe also said that as there were about 200 bioactive compounds in tea the apparent effect of milk of vasodilation "does not necessarily mean milk negates the other effects of tea". Catherine Collins, a dietician and spokesperson for the British Dietetic Society, agreed that tea was a "very healthy drink" and pointed out that drinking it with milk in would boost calcium intake. (BBC News -- UK)
Adding milk to tea could be bad Jan 9, 2007
"So, we decided to investigate the effects of tea, with and without milk, on endothelial (lining of arteries and blood vessels) function, because that is a sensitive indicator of what is happening to blood vessels." Dr Mario Lorenz, a molecular biologist who worked on the study, said: "We found that, whereas drinking tea significantly increased the ability of the artery to relax and expand to accommodate increased blood flow compared with drinking water, the addition of milk completely prevents... (The Herald)
Scientists Uncover Potential Key To Brain Blood-flow Disorders Jan 6, 2007
This study utilized the spatially and temporally-controlled photo-release of the intracellular calcium releasing messenger inositol trisphosphate within individual endfeet in brain to demonstrate that activation of a single endfoot is sufficient to induce local vasodilation of an adjacent blood vessel. This vasodilation was restricted to a short stretch of the vessel centered on the endfoot, suggesting that endfeet function as individual vasoregulatory units in the brain. (Science Daily)
