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UrduA new study from researchers with UCLA Health and collaborating organizations has found that asporin, a protein encoded by the ASPN gene, plays a protective role in pulmonary arterial hypertension (PAH).
Tag: Blood Flow
High Levels of a Specific Antibody May Contribute to Acute Coronary Syndrome
How a person’s immune system responds to a protein called LL-37 may increase risk for developing acute coronary syndrome, but the response may also serve as a potential target for future treatments.
Modifying homes for stroke survivors saves lives, extends independence
Researchers at Washington University School of Medicine in St. Louis have found that safety interventions – such as walkers, grab bars, ramps and other home modifications – allow many stroke survivors to keep living independently in their homes and may reduce their risk of death.
Study in mice shows how chronic caffeine consumption alters sleep pattern and blood flow
Mice that consumed caffeine when awake slept more solidly and their overall amount of non-REM and REM sleep was not changed because they “slept in” later.
Exercise May Induce Strokes for People with Blocked Arteries
Certain conditions can make the increased heart rate associated with exercise dangerous: Researchers found that an elevated heart rate can induce a stroke in patients with highly blocked carotid arteries. Contrastingly, for healthy patients and those with only slightly blocked arteries, exercise is beneficial for maintaining healthy blood flow. In healthy patients, an elevated heart rate increases and stabilizes the drag force blood exerts on the vessel wall, reducing stenosis risk. But for patients already experiencing stenosis, it may not be as beneficial.
Blood Flow-restricted Resistance Exercise Could Help Counteract Age-related Muscle Loss
Low-load blood flow-restricted resistance exercise helped counter age-related muscle decay “with a modest exercise volume and in a very time-efficient manner.” The study is published ahead of print in the Journal of Applied Physiology. It was chosen as an APSselect article for May.
In first in-utero brain surgery, doctors eliminated symptoms of dangerous condition
For the first time, researchers performed a successful in-utero surgery to repair a potentially deadly developmental condition by treating an aggressive vascular malformation, called vein of Galen malformation, in a fetus’s brain before birth.
Researchers discover key pathway for COVID organ damage in adults
Even after three years since the emergence of COVID-19, much remains unknown about how it causes severe disease, including the widespread organ damage beyond just the lungs. Increasingly, scientists are learning that organ dysfunction results from damage to the blood vessels, but why the virus causes this damage is unclear.
Study Explores How Pressure in the Skull Affects Brain Blood Flow after Brain Injury
Article title: Contribution of intracranial pressure to human dynamic cerebral autoregulation after acute brain injury Authors: Sérgio Brasil, Ricardo C. Nogueira, Angela S. M. Salinet, Márcia H. Yoshikawa, Manoel J. Teixeira, Wellingson Paiva, Luiz M. S. Malbouisson, Edson Bor-Seng-Shu, Ronney…
A way to measure brain blood flow in pre-term babies at the bedside
Researchers have discovered a novel, non-invasive way to measure blood flow to the brains of newborn children at the bedside – a method that has the potential to enhance diagnosis and treatment across medicine, a Michigan Medicine study suggests.
COVID-19 Blood Flow Changes May Be Reason for ‘Brain Fog,’ Depression
A new review suggests that blood vessel damage and impaired oxygen delivery related to COVID-19 play a role in mood changes and cognitive difficulties that people with the disease face during illness and recovery. The review is published in Physiological Reports.
Vaping Disrupts Blood/Air Flow Matching in Asymptomatic Users
Article title:Vaping disrupts ventilation-perfusion matching in asymptomatic users Authors: Abhilash S. Kizhakke Puliyakote, Ann R. Elliott, Rui Carlos Sá, Kevin M. Anderson, Laura E. Crotty Alexander, Susan Roberta Hopkins From the authors: “Our data suggests that changes in pulmonary perfusion…
MRI Finds Circadian Variations in Men’s and Women’s Renal Blood Flow
Article title: Circadian variation in renal blood flow and kidney function in healthy volunteers monitored with noninvasive magnetic resonance imaging Authors: Per Eckerbom, Peter Hansell, Eleanor Cox, Charlotte Buchanan, Jan Weis, Fredrik Palm, Susan Francis, Per Liss From the authors: “In…
Quick, Frequent Exercise Breaks Improve Blood Vessel Health in Type 2 Diabetes
Frequent exercise breaks during prolonged sitting may be better for blood vessel health in people with type 2 diabetes than less-frequent activity interruptions. The first-of-its-kind study is published ahead of print in the American Journal of Physiology-Heart and Circulatory Physiology.
Technion Researchers Discover Hidden Fluid Instability
In a discovery with far-reaching implications for intubation ventilators, lab-on-a-chip micromixers, and micro air vehicles, Technion researchers were able to visualize the stationary tornadoes caused by the Coandă effect.
Sugary Soda Consumption Linked to Reduced Kidney Blood Flow
Regular consumption of sugary soda sweetened with high-fructose corn syrup (HFCS) reduces kidney blood flow, which could be linked to a greater risk of developing chronic kidney disease (CKD), according to a recently published paper in the American Journal of Physiology-Renal Physiology.
Scientists Develop Free Computer Program to Map Blood Flow ‘Landscape’ in Tumors
Johns Hopkins Medicine researchers have created a computer program for scientists at no charge that lets users readily quantify the structural and functional changes in the blood flow networks feeding tumors.
Simulations Characterize Turbulence Caused by Common Connection for Dialysis
The complex interplay among the arteriovenous grafts, the vessels they connect, and the blood they transport has been difficult to simulate with computers, but one new method provides a way. Researchers report in Physics of Fluids on a series of simulations that reconstructed the fluid dynamics affected by the insertion of an AVG.
Hearts and Stripes: A Tiny Fish Offers Clues to Regenerating Damaged Cardiac Tissue
Zebrafish and mammals share key cellular features; researchers have identified how the former repair their damaged hearts and now wonder if humans might someday be able to do so, too Research into the hearts of zebrafish, a pet shop staple…