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Articles written by Marilynn Marchione

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Companies test antibody drugs to treat, prevent COVID-19

With a coronavirus vaccine still months off, companies are rushing to test what may be the next best thing: drugs that deliver antibodies to fight the virus right away, without having to train the immune system to make them. Antibodies are proteins...

 

Scientists get closer to blood test for Alzheimer's disease

An experimental blood test was highly accurate at distinguishing people with Alzheimer's disease from those without it in several studies, boosting hopes that there soon may be a simple way to help diagnose this most common form of dementia. Developi...

 

Virus antibodies fade fast but not necessarily protection

New research suggests that antibodies the immune system makes to fight the new coronavirus may only last a few months in people with mild illness, but that doesn't mean protection also is gone or that it won't be possible to develop an effective...

 

New studies clarify what drugs help, hurt for COVID-19

Fresh studies give more information about what treatments do or don't work for COVID-19, with high-quality methods that give reliable results. British researchers on Friday published their research on the only drug shown to improve survival -- a chea...

 

Study suggests fetal coronavirus infection is possible

A small study strengthens evidence that a pregnant woman infected with the coronavirus might be able to spread it to her fetus. Researchers from Italy said Thursday that they studied 31 women with COVID-19 who delivered babies in March and April....

 

Study on safety of malaria drugs for coronavirus retracted

Several authors of a large study that raised safety concerns about malaria drugs for coronavirus patients have retracted the report, saying independent reviewers were not able to verify information that's been widely questioned by other scientists....

 

Malaria drug didn't help virus patients, big UK study finds

Leaders of a large study in the United Kingdom that is rigorously testing the malaria drug hydroxychloroquine and other medicines for hospitalized COVID-19 patients say they will stop putting people on the drug because it's clear it isn't helping. Re...

 

Malaria drug fails to prevent COVID-19 in a rigorous study

A malaria drug President Donald Trump took to try to prevent COVID-19 proved ineffective for that in the first large, high-quality study to test it in people in close contact with someone with the disease. Results published Wednesday by the New Engla...

 

Big study casts more doubt on malaria drugs for coronavirus

Malaria drugs pushed by President Donald Trump as treatments for the coronavirus did not help and were tied to a greater risk of death and heart rhythm problems in a new study of nearly 100,000 patients around the world. Friday's report in the...

 

Aides scramble to defend Trump's use of unproven drug

WASHINGTON (AP) — Making himself an example for using a malaria drug against the coronavirus, President Donald Trump sent the White House scrambling Tuesday to defend his decision amid medical concerns the unproven treatment could spark misuse of...

 

A 1st: US study finds Gilead drug works against coronavirus

For the first time, a major study suggests that an experimental drug works against the new coronavirus, and U.S. government officials said Wednesday that they would work to make it available to appropriate patients as quickly as possible. In a study...

 

US allows use of 1st drug shown to help virus recovery

WASHINGTON (AP) — U.S. regulators on Friday allowed emergency use of the first drug that appears to help some COVID-19 patients recover faster, a milestone in the global search for effective therapies against the coronavirus. The Food and Drug...

 

Drug proves effective against virus as economic damage rises

Scientists on Wednesday announced the first effective treatment against the coronavirus — an experimental drug that can speed the recovery of COVID-19 patients — in a major medical advance that came as the economic gloom caused by the scourge...

 

FDA warns of heart risks with Trump-promoted malaria drug

WASHINGTON (AP) — The U.S. Food and Drug Administration on Friday warned doctors against prescribing a malaria drug touted by President Donald Trump for treating the new coronavirus except in hospitals and research studies. In an alert, regulators...

 

Coronavirus patients rush to join studies of Gilead drug

The new coronavirus made Dr. Jag Singh a patient at his own hospital. His alarm grew as he saw an X-ray of his pneumonia-choked lungs and colleagues asked his wishes about life support while wheeling him into Massachusetts General's intensive care...

 

New China virus details show challenge for outbreak control

It can spread person to person, even if someone is showing no symptoms. The next in line can continue to pass it on. The incubation period is so long that people may not know where or when they picked it up. Details that emerged last week about the...

 

Drug can curb dementia's delusions, researchers find

SAN DIEGO (AP) — A drug that curbs delusions in Parkinson's patients did the same for people with Alzheimer's disease and other forms of dementia in a study that was stopped early because the benefit seemed clear. If regulators agree, the drug...

 

Big study casts doubt on need for many heart procedures

PHILADELPHIA (AP) — People with severe but stable heart disease from clogged arteries may have less chest pain if they get a procedure to improve blood flow rather than just giving medicines a chance to help, but it won't cut their risk of having... Full story

 

Biogen reanalyzes studies, presses ahead on Alzheimer's drug

Biogen Inc. said Tuesday it will seek federal approval for a medicine to treat early Alzheimer's disease, a landmark step toward finding a treatment that can alter the course of the most common form of dementia. The announcement was a surprise...

 

A gene-editing first: scientists tried CRISPR to fight HIV

Scientists are reporting the first use of the gene-editing tool CRISPR to try to cure a patient's HIV infection by providing blood cells that were altered to resist the AIDS virus. The gene-editing tool has long been used in research labs, and a Chin...

 

New clues on why women's Alzheimer's risk differs from men's

LOS ANGELES (AP) — New research gives some biological clues to why women may be more likely than men to develop Alzheimer's disease and how this most common form of dementia varies by sex. At the Alzheimer's Association International Conference in...

 

A healthy lifestyle may offset genetic risk for Alzheimer's

LOS ANGELES (AP) — A healthy lifestyle can cut your risk of developing Alzheimer's or other forms of dementia even if you have genes that raise your risk for these mind-destroying diseases, a large study has found. People with high genetic risk and...

 

Scientists close in on blood test for Alzheimer's

LOS ANGELES (AP) — Scientists are closing in on a long-sought goal — a blood test to screen people for possible signs of Alzheimer's disease and other forms of dementia. On Monday at the Alzheimer's Association International Conference, half a...

 

New gene tests for germs quickly reveal source of infections

Brian Jetter was on life support, a healthy 40-year-old suddenly battling pneumonia and sepsis, and a slew of tests had failed to find the cause. Mystery illnesses like this kill thousands of people each year when germs can't be identified fast...

 

Companies report progress on blood tests to detect cancer

A California company says its experimental blood test was able to detect many types of cancer at an early stage and gave very few false alarms in a study that included people with and without the disease. Grail Inc. gave results in a news release on...

 

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