Peripheral Blood Flow through the V... Oct 11, 2009
The presence of valves within the veins, muscle contraction, breathing, and vasoconstriction are responsible for the return of venous blood to the heart ... Vasoconstriction can also result from trauma ... It is not uncommon to see vasoconstriction during endoluminal laser ablation surgery of the greater saphenous vein, which is used to treat varicose veins. (Suite101.com)
Hold and Cold Therapy to Reduce Swe... Aug 16, 2009
The cold therapies reduce circulation to an area (vasoconstriction) while the hot therapies increase circulation to an area (vasodilation). The alternating cold and hot therapies act together to pump the extra fluid out of the injured area. (Suite101.com)
Rush Of Blood To The Head: Anger Increases Blood Flow Jul 5, 2009
According to Naqvi, "Inappropriate vasoconstriction, or lack of dilation in response to mental stress in stable coronary heart disease, contributes to the genesis of myocardial ischemia and confers an increased risk in patients with coronary artery disease. It will be interesting to see whether the lack of mental stress induced dilation we found defines subjects at increased risk of future cerebral events." Lack of required blood flow increase to the brain during mental activities may... (Science Daily)
Anger increases brain blood flow Jul 4, 2009
Anger does increase brain blood flow - Health - Wellness - Lifestyle - The Times of India. Anger does increase brain blood flow. (India Times, India)
Gene Expression in Lungs of Mice Lacking the 5-hydroxytryptamine Transporter Gene May 10, 2009
While modulation of the serotonin transporter (5HTT) has shown to be a risk factor for pulmonary arterial hypertension for almost 40 years, there is a lack of in vivo data about the broad molecular effects of pulmonary inhibition of 5HTT. Previous studies have suggested effects on inflammation, proliferation, and vasoconstriction. The goal of this study was to determine which of these were supported by alterations in gene expression in serotonin transporter knockout mice. (BioMed Central)
The Lancet Publishes Two-Year Results of Abbott's Fully Bioabsorbable Drug Eluting Stent Mar 13, 2009
Restoration of vasomotion (ability of the blood vessel to contract and expand) was observed at two years, with the drug acetylcholine used in nine patients showing vasodilation in the previously stented area, and the drug methergin used in seven patients showing vasoconstriction in the previously stented area. Reduction in plaque area in treated arteries, corresponding to an increase in blood flow between six months and two years, as confirmed by intravascular ultrasound (IVUS) and virtual... (PR Newswire)
A Woman with Headache, Hypertension, and Seizure 2 Weeks Post Partum Mar 12, 2009
Reversible Cerebral Vasoconstriction Syndrome (Postpartum Angiopathy). -->Clinical Diagnosis. (New England Journal of Medicine)
Prostacyclin Feb 12, 2009
This is in opposition to another eicosanoid released by cell fragments in the blood (platelets) called thromboxane A2 (TXA2) that promotes clotting (thrombosis), vasoconstriction, and blood pressure elevation. It appears that these two eicosanoids continually oppose each other, creating a dynamic balance to regulate blood circulation. (Suite101.com)
