blood

2 bloodpressure

Researchers model impact of blood pressure control programs at barbershops nationwide

Credit: CC0 Public Domain Hypertension, or high blood pressure, kills more Americans than any other health condition. It is especially prevalent in Black Americans and is exacerbated by structural barriers to accessing high quality healthcare. In a 2018 randomized trial called the Los Angeles Barbershop Blood Pressure Study (LABBPS), barbers were trained to screen their …

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Blood donation saves lives but few South Africans are regular donors

Blood donation saves lives but few South Africans are regular donors

Credit: CC0 Public Domain Blood donation is a vital therapy for a number of life threatening conditions. South Africa needs around 810,000 units of blood every year. People needing blood transfusions include accident victims, those with anemia and patients undergoing surgery. But less than 1% of South Africans are active blood donors, which means regular …

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Major study of diabetes trends shows Americans' blood sugar control is getting worse

Major study of diabetes trends shows Americans’ blood sugar control is getting worse

Credit: CC0 Public Domain Blood sugar control among adults with diabetes in the United States declined significantly in the past decade, according to a nationwide study from researchers at the Johns Hopkins Bloomberg School of Public Health. The findings highlight the ongoing challenges of controlling one of the nation’s most prevalent chronic health conditions. The …

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Study links blood cell mutations to increased infection risk with age

Study links blood cell mutations to increased infection risk with age

Credit: Susanna Hamilton, Broad Communications New research suggests age-related changes in blood cell chromosomes are a marker of impaired immunity. A person’s risk of severe infections increases dramatically as they grow older, but scientists do not yet understand how age might be linked to weakened immunity. Now, research shows that certain age-related changes in blood …

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A breakthrough in the physics of blood clotting

A breakthrough in the physics of blood clotting

First author Yueyi Sun inside Georgia Tech’s Complex Fluids Modeling and Simulation lab, where she compares the experimental and simulated platelet-driven fibrin clot contraction process. Credit: Alexander Alexeev, Georgia Tech Heart attacks and strokes—the leading causes of death in human beings—are fundamentally blood clots of the heart and brain. Better understanding how the blood-clotting process …

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A high concentration of ACE2 in the blood may increase the risk of serious COVID-19

A high concentration of ACE2 in the blood may increase the risk of serious COVID-19

Credit: Pixabay/CC0 Public Domain Normally, the ACE2 enzyme helps regulate our blood pressure. The enzyme sits on the surface of cells, including cells in the lungs, but in connection with COVID-19 it has been found that ACE2 also functions as a gateway for the virus. “Different viruses have different ways of accessing our cells—as the …

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Rapid, at-home blood test could confirm COVID-19 vaccination in minutes

Rapid, at-home blood test could confirm COVID-19 vaccination in minutes

An image taken from a YouTube video shows results of a rapid blood test developed by Johns Hopkins researchers that can confirm in minutes if a person has been vaccinated for SARS-CoV-2, the virus that causes COVID-19. Credit: Robert Kruse One challenge as society reopens is identifying who has been vaccinated for SARS-CoV-2, the virus …

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SARS-CoV-2 RNAemia infrequent in blood donors

SARS-CoV-2 RNAemia infrequent in blood donors

Nucleic acid testing of donor plasma minipools (MPs) indicates that severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RNAemia is infrequent, according to a study published online May 27 in Transfusion. Sonia Bakkour, Ph.D., from the Vitalant Research Institute in San Francisco, and colleagues tested blood donations collected from March 7 to Sept. 25, 2020, for …

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'Prescription' to sit less, move more advised for mildly high blood pressure and cholesterol

‘Prescription’ to sit less, move more advised for mildly high blood pressure and cholesterol

Credit: CC0 Public Domain A “prescription” to sit less and move more is the optimal first treatment choice for reducing mild to moderately elevated blood pressure and blood cholesterol in otherwise healthy adults, according to the new American Heart Association scientific statement published today in the American Heart Association’s journal Hypertension. “The current American Heart …

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Mini bone marrow model predicts response to blood disorder treatment

Mini bone marrow model predicts response to blood disorder treatment

Platelets are created and released into the bloodstream by megakaryocytes, giant cells that live in the bone marrow. This image shows megakaryocytes (in red) forming platelets within a bone marrow mimic made with silk biomaterial. Credit: Christian Di Buduo, Alessandra Balduini (CC BY 4.0) A new miniature 3D model of human bone marrow has been …

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