Study Estimates 76 Percent of Brazilian City Exposed to SARS-CoV-2
Study Estimates 76 Percent of Brazilian City Exposed to SARS-CoV-2
The number, extrapolated from antibodies present in blood donors in Manaus, should be treated with caution, experts warn.
Study Estimates 76 Percent of Brazilian City Exposed to SARS-CoV-2
Study Estimates 76 Percent of Brazilian City Exposed to SARS-CoV-2

The number, extrapolated from antibodies present in blood donors in Manaus, should be treated with caution, experts warn.

The number, extrapolated from antibodies present in blood donors in Manaus, should be treated with caution, experts warn.

blood
New RNA-Based Tool Could Assess Preeclampsia Risk
New RNA-Based Tool Could Assess Preeclampsia Risk
Amanda Heidt | Sep 1, 2020
Transcripts circulating in the blood provide real-time information about maternal, fetal, and placental health.
Blood Replacement Rescues Mice from Stroke Damage
Blood Replacement Rescues Mice from Stroke Damage
Amanda Heidt | Aug 31, 2020
When mice that had suffered a stroke were given blood from a healthy donor, they experienced less tissue and neurological damage.
FDA Gives Plasma Go-Ahead to Treat COVID-19, Experts Skeptical
FDA Gives Plasma Go-Ahead to Treat COVID-19, Experts Skeptical
Amanda Heidt | Aug 24, 2020
White House officials hail convalescent plasma as a major breakthrough, but scientists say evidence supporting its effectiveness is still lacking.
The Father of Autoimmunity: A Profile of Noel Rose
The Father of Autoimmunity: A Profile of Noel Rose
Diana Kwon | Jun 1, 2020
By revealing that animals could develop immune responses against their own tissues, the physician-scientist established an entirely new field of science.
Biogen Uses its Own Superspreader Event to Aid COVID-19 Research
Biogen Uses its Own Superspreader Event to Aid COVID-19 Research
Claire Jarvis | May 19, 2020
A blood biobank allows scientists to study the immune responses to the coronavirus among infected Biogen employees and their contacts.
Researchers Find Cell-Free Mitochondria Floating in Human Blood
Researchers Find Cell-Free Mitochondria Floating in Human Blood
Katarina Zimmer | Feb 6, 2020
The functional, respiring organelles appear to be present in the blood of healthy people, but their function is yet unclear.
Social Bonds Among Captive Vampire Bats Persist in the Wild
Social Bonds Among Captive Vampire Bats Persist in the Wild
Emily Makowski | Nov 1, 2019
Bats that share food with their hungry cage-mates stay close after being released.
Blood-Cleaning Machine Quickly Eliminates Carbon Monoxide in Rats
Blood-Cleaning Machine Quickly Eliminates Carbon Monoxide in Rats
Ruth Williams | Oct 9, 2019
A device that illuminates and oxygenates blood outside of the body before pumping it back in removes the gas by freeing hemoglobin from CO.
Cells’ Oxygen Sensing Discovery Earns Nobel Prize
Cells’ Oxygen Sensing Discovery Earns Nobel Prize
Emily Makowski | Oct 7, 2019
For the Physiology or Medicine award, Peter Ratcliffe, William Kaelin, and Gregg Semenza are credited with figuring out molecular and genetic responses to oxygen levels.
Shuping Wang, Public Health Whistleblower, Dies
Shuping Wang, Public Health Whistleblower, Dies
Emily Makowski | Sep 30, 2019
The physician and researcher challenged the Chinese government over her findings of widespread hepatitis and HIV contamination during blood collection.
Bar-Headed Geese Slow Their Metabolism to Soar over Everest
Bar-Headed Geese Slow Their Metabolism to Soar over Everest
Nicoletta Lanese | Sep 4, 2019
The birds also decrease their heart rate and chill their blood to maintain flight in hypoxic conditions.
Bedbugs Predated <em>T. rex</em> and Triceratops, New Family Tree Shows
Bedbugs Predated T. rex and Triceratops, New Family Tree Shows
Ashley Yeager | May 17, 2019
The finding overturns the idea that the insect’s first victims were bats and reveals that certain species started targeting humans as a side snack, not as a main meal.
A New Role for Platelets: Boosting Neurogenesis After Exercise
A New Role for Platelets: Boosting Neurogenesis After Exercise
Katarina Zimmer | Mar 21, 2019
A mouse study finds that when blood platelets are activated during exercise, they release factors that increase the number of newborn neurons in the hippocampus.
Young Blood Unproven as Anti-Aging Treatment: US FDA
Young Blood Unproven as Anti-Aging Treatment: US FDA
Carolyn Wilke | Feb 20, 2019
The agency warns that plasma treatments costing thousands of dollars, which supposedly treat the infirmities of old age, have not been proven “safe or effective.”
Protein Changes Detected in Blood Years Before Alzheimer&rsquo;s Onset
Protein Changes Detected in Blood Years Before Alzheimer’s Onset
Jef Akst | Jan 21, 2019
The observation could pave the way for a blood test to predict disease progression in people with a genetic predisposition to developing the neurodegenerative disorder.
Image of the Day: Blood and Guts
Image of the Day: Blood and Guts
Carolyn Wilke | Dec 13, 2018
Researchers find that stem cells in the human intestine may provide up to 10 percent of circulating blood cells.
How Red Blood Cells Get Their Dimples
How Red Blood Cells Get Their Dimples
Ashley Yeager | Sep 1, 2018
Myosin proteins tug on the cell membrane, giving an erythrocyte its distinct shape.
Surveying Biodiversity with Leeches
Surveying Biodiversity with Leeches
Diana Kwon | Jun 1, 2018
Scientists are searching for signatures of mammals within the blood meals of the invertebrates.