Sentences with phrase «smaller artery»

Also, large dogs tend to tolerate the disease better than small dogs since small dogs have smaller artery openings in the heart.
Then he found the material worked on small arteries, too.
«Our research has identified a gene affecting another type of ischemic stroke, due to small vessel disease, and also suggests some genes may be associated with both ischemic and hemorrhagic stroke and may act through a novel pathway affecting pericytes, a type of cell in the wall of small arteries and capillaries.
alphaV integrins are necessary for eutrophic inward remodeling of small arteries in hypertension.
Small arteries from 42 essential hypertensive patients (HT) and 41 normotensive individuals (NT) were dissected after subcutaneous biopsy.
Here's a link to the new study which found an association between low carb and poorer peripheral small artery function.
Sodium can also cause small arteries to constrict, producing greater resistance to blood flow.
Smaller emboli may travel into smaller arteries and affect arterial blood flow to only one limb, or to other sites such as the brain, lungs, or kidneys.
Pulmonary arterial pathology in cats and ferrets is similar to that in dogs, although the small arteries develop more severe muscular hypertrophy.
Several smaller arteries might be dilated, tortuous, or pruned.
Once the medicine is given the worms begin to die, meaning they break into small pieces which can occlude a pulmonary vessel or become lodged in the small arteries of the body.
We don't want increased blood pressure that pushes the chunks of dead worm tighter into the smaller arteries.
A big increase of blood pressure could shove the dead worms farther into the smaller arteries.
It occurs when the smaller arteries (usually in the fingers and toes) constrict, decreasing the blood supply to these areas.

Not exact matches

A model that debuted in 2015, for example, simulated a human leg, its skin, muscle, bone, large arteries, and even small veins.
The good HDL has smaller particles, the bad LDL has larger particles, and the very bad VLDL has the largest of all to plug up our arteries.
The bioactive compounds in cacao and cocoa can improve blood flow in the arteries and cause a small but statistically significant decrease in blood pressure.
In addition to the vascular calcification in the arteries of his stomach and legs which had already been known about, the superior image allowed doctors to spot three small areas of calcification near to the outflow tracts of the heart which had hitherto escaped their notice.
But in a small percentage of cases, these headaches can be due to a serious underlying condition, such as a hemorrhage, brain aneurysm, stroke, cervical artery dissection or subdural hematoma.
In individuals, whose HDL - cholesterol levels were low, the quality of HDL particles was also impaired; they contained smaller amounts of lipid molecules which are known to be antioxidant and thus protective to arteries.
A small, flexible stainless - steel mesh tube is inserted into clogged arteries and then expanded, allowing the resumption of blood flow to the heart.
To speed the procedure, doctors typically implant a small blood vessel between a vein and an artery in the patient's arm.
Strokes often result when accumulated plaque breaks off from a narrowed section of an internal carotid artery and blocks smaller vessels in the brain.
On September 11, the company announced the completion of a small clinical trial of its adhesive: The sealant immediately stopped blood flow after an artery - clearing operation in about 85 percent of 22 participants.
Until now, many scientists believed that blood flow within the brain was solely controlled by changes in the diameter of arterioles, blood vessels that branch out from arteries into smaller capillaries.
However, Ms. Waller's arteries were too small in diameter for the catheter due to prior plaque buildup and stents that had been previously placed in them.
«While our arteries are small and intended for testing, they're just as mechanically strong as those intended to be put inside of the body,» said Truskey.
With the development of these small artificial arteries, the two systems can be connected and eventually integrated with other tissue proxies, such as artificial, functioning liver tissue, which is also being pursued at Duke.
While arteries are the main supply routes into the brain, blood ultimately delivers its payload of oxygen to its final destination via a vast web of smaller capillaries — or microvessels — which permeate brain tissue.
For example, the human vascular system has evolved to provide blood access to flow through a network of a few large arteries and many small capillaries.
His group is testing the mini-motor in silicone models of human arteries and planning even smaller versions.
Previous small studies suggested that delaying stent implantation for a period of time ranging from several hours to several days after reopening the artery might reduce the risk of blood - flow disturbance.
After the blocked artery is opened, the blockage site often contains residual blood clots that may, when the stent is implanted, be displaced downstream into the small branches of the artery.
The thinking was that medication given during the delay might allow the residual blood clots to diminish, reducing the risk of a displaced clot damaging the small branches of the artery.
But until now, RDN has not been performed in the accessory renal arteries due to their small diameter and the risk of developing a vascular stenosis after catheter ablation.
During PAE, an interventional radiologist makes a tiny incision in either the groin or wrist to insert a catheter (a small tube about the size of a strand of spaghetti) into an artery and, using image guidance, directs the catheter to the blood vessels on both sides of the enlarged prostate gland.
Overall, those with cerebral diseases were older, had high blood pressure and had thicker carotid arteries than those who did not have cerebral small vessel disease.
Small vessel disease occurs due to microangiopathy of arterioles in the brain, making these arteries less flexible, which can interfere with blood flow.
The mice seem to develop normally when only one copy of the gene is removed, but microscopic inspection reveals a number of small «gaps,» or disorganized regions of tissue (on the scale of a few nanometers) on their aortas, the largest artery in their bodies.
Normally, the lungs» blood vessels act as a filter to remove small clots before blood goes into arteries.
If a blockage is found, the surgeon typically uses the same catheter to inflate or expand a small device to push aside plaque and open the artery, a procedure known as angioplasty or stenting.
Although the artery in the arm is closer to the surface and thus easier to access, the artery's smaller size makes the radial approach more technically difficult and requires the use of smaller equipment.
First, doctors insert the small mesh tubes through an artery in the leg to the blockage in the artery that takes blood to the brain.
Isolated right and left atria and small mesenteric arteries from wild type and tau deficient (KO)... mice of two age groups (13 and 23 months old) were used to assess cardiovascular phenotypes.
The tiny particles are 1,000 times smaller than the tip of a human hair, and are designed to latch on to atherosclerotic plaques — hard deposits made from accumulated fat, cholesterol and calcium that build up on the walls of arteries and are prone to rupture, producing dangerous clots.
Stents are small, expandable metal mesh tubes that are inserted in blocked heart arteries during a heart catheterization procedure to improve blood flow to the heart muscle.
Endothelial progenitor cells were isolated from small pieces (1 — 3 cm) of human saphenous vein and / or mammary artery.
Small diameter mammary arteries were dilated prior to collagenase exposure.
When I got there, the tests showed that I was having a heart attack, and the doctors performed an angioplasty — a procedure in which a small tube is inserted into the artery to help prop it open.
Experiments involving people and animals show that «small amounts of an alcoholic beverage, especially wine, are associated with less atherosclerosis [clogged arteries] and coronary heart disease — even in rats, mice, and pigeons,» he said.
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