Tag: "vessels" at medical news
Simple system accurately predicts weight-loss surgery risk
...ave heart disease or chronic inflammation of blood vessels
that can add to the risks of surgery. Pulmonary embolus risk. Patients who have had a pulmonary embolism, a blood clot in the lungs, or are at risk for developing an embolism are at elevated risk. "When talking to patients about bariatric su...
ACS News Service Weekly PressPac -- April 4, 2007
...e small amounts of NO for months. NO dilates blood vessels
and has other actions suggesting that it could reduce undesirable effects such as blood vessel scaring and narrowing that tend to occur after coronary angioplasty and bypass surgery. In experiments with laboratory rats, the researchers showed that ...
Combined imaging approach may provide better identification of difficult-to-diagnose brain clots
... of difficult-to-detect abnormal flow areas within vessels
of the brain. These areas may be important warning...forms connective scar tissue and can develop small vessels
in an attempt to restore blood flow. This was very difficult to diagnose correctly using previous te...
A new, nanoporous ceramic filter offers hope to kidney-dialysis patients
...h nephron in turn contains a cluster of tiny blood vessels
called a glomerulus, which is attached to a tubule. Every 24 hours, the kidneys filter about 200 quarts of fluid, returning 198 quarts of purified fluid to the bloodstream and excreting 2 quarts in the form of urine. The toxins removed from the blo...
Blocking immune cell action increases Alzheimer's-associated protein deposits
...These deposits were primarily found in small blood vessels
similar to a condition called cerebral amyloid angiopathy, which is associated with an increased risk of cerebral hemorrhage. In addition, CCR2-deficient mice had significantly shortened life spans. By 130 days of age, 85 percent of mice in which ...
First step in developing heart hormone-based pill to control high blood pressure
...cell proliferation and promoting dilation of blood vessels
without causing low blood pressure. However, CNP had no effect on increasing kidney filtration. But another peptide, called D-type natriuretic peptide (DNP), did. The Mayo Clinic solution was to synthesize a hybrid between CNP and DNP that preserved ...
MRI contrast agent can detect heart attack in the making
...w physicians to peer directly into patients' blood vessels
and find dangerous cholesterol-filled plaques before they rupture and cause a heart attack. Scientists at New Yorks Mount Sinai Medical Center and the New York University School of Medicine, under the direction of Dr. Edward A. Fisher, M.D., Ph.D.,...
Nanoparticles can track cells deep within living organisms
.... Such cells can be primed to help build new blood vessels
when injected into the body. The researchers belie...s would reveal that the tumor was adding new blood vessels
and therefore aggressively growing. Adult stem cells are also under investigation in therapies th...
Crestor effective at halting early atherosclerosis
...so effective at halting early changes in the blood vessels
that can lead to atherosclerosis. "Rosuvastatin ...osclerosis, the deposit of fatty material in blood vessels
that can lead to heart attacks and strokes. There were 984 study participants: 702 were randomly a...
Colon cancer survival linked to number of lymph nodes examined
...A surgeon needs to trace back the origins of blood vessels
closest to the tumor because the lymphatic system, with its nodes, closely tracks with the blood system. Sometimes the nodes, which filter cancer cells from the lymph, can be difficult for pathologists to find, especially when the lymph nodes are s...
Molecular differences between early and advanced melanomas could provide new drug targets
...r of angiogenesis the growth of microscopic blood vessels
that nourish cancerous tumors and lead to unregulated cell growth. When melanoma cells overexpressing Akt were introduced into immunocompromised (nude) mice, the mice developed aggressive tumors that expressed high levels of VEGF, whereas a control ...
UW launches study testing adult stem cells for heart damage repair
... occurs when the coronary arteries and the smaller vessels
that supply oxygen-rich blood to the heart muscle ...l blood clots downstream, blocking the small blood vessels
in the heart. These blockages can result in a series of mini-heart attacks that, while they may be ...
Erectile dysfunction drugs may trump nitroglycerin for heart protection
...or chest pain. It is a vasodilator and opens blood vessels
in order to improve the flow of blood to a patient's heart. The research team reported that in an animal model, sildenafil and vardenafil reduce damage in the heart muscle when given after a severe heart attack. In contrast, nitroglycerin failed to...
Aspirin reduces esophageal-cancer risk in people with most-aggressive form of Barrett's esophagus
...feration of cells and decrease the growth of blood vessels
that supply blood to tumors, Reid said. The annual incidence of esophageal cancer among Barretts esophagus patients is about1 percent most patients never get the cancer. However, the outlook is grim if the cancer is not diagnosed early, with an over...
How T lymphocytes attack
...hotograph of the different cell populations, blood vessels
and collagen fibres present. And using a series of successive images, it was possible to reconstitute the trajectory of a T lymphocyte. Using this method, the researchers thus examined the different protagonists T lymphocytes and tumour cells duri...
AHA statement recommends doctors change approach
...t studies indicate that the cells lining the blood vessels
have more of the COX-2 enzyme than initially thought. So it's possible that inhibiting the COX-2 pathway can make a person's blood more likely to clot. There is also an increase in sodium and water retention, which in turn could worsen heart failure...
Cancer drug can extend survival in patients with deadly brain tumors
...a protein that stimulates development of new blood vessels
in a process known as angiogenesis. New blood vessels
spur a tumors growth and ability to spread, so researchers are interested in cutting off angiogenesi...
Updated guidelines advise focusing on women's lifetime heart risk
...r seven years of use. While calcification in blood vessels
and heart valves increases a person's risk for coronary events, the relationship between dietary calcium and cardiovascular events is uncertain. Researchers evaluated the risk of coronary and cerebrovascular events in 36,282 postmenopausal women in t...
New blood thinner studied for patients with leg and lung clots
...emotherapy and radiation therapy, can narrow blood vessels
and add to the risk. An estimated 600,000 pulmonary embolisms occur each year in the United States and deep vein thrombosis is about twice as common. Many patients have both because a clot in the leg has nearly a straight shot to the lungs through ...
Benchmark fetal surgery study finds timeliness to be critical factor in success of treatment
... in which blood flows through the connecting blood vessels
on a shared placenta is unequal. As a result, the donor twin has slowed growth and decreased amniotic fluid, while the recipient has too much amniotic fluid and develops a form of heart failure. Without treatment, TTTS is fatal for at least 90 perc...
1 2 3 4 5 6 7 8 9 10