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Superbugs use 'mirror images' to become antibiotic-resistant

Mar 08, 2022

Researchers investigated the underlying reasons for drug resistance in a mutated form of methicillin-resistant Staphylococcus aureus (MRSA) bacteria. They found that drug-resistant mutations contained a flipped mirror image, known as flipped chirality, of the binding site for a key co-factor in MRSA replication. The study authors stress the need to take these findings into account when designing new drugs for...

First study in North America uses genetic testing to identify people at risk of heart disease

Feb 22, 2022

Dignity Health in Arizona is launching the first research study in North America in which genetic testing is used to identify men and women at risk of developing heart disease based on the makeup of their DNA. If proven effective in clinical trials, this form of genetic testing may be adopted globally to prevent heart disease. Heart disease is the No. 1 killer in the world – in fact, half of Americans are expected to have at least...

Almost one-third of older adults develop new conditions after COVID-19

Feb 18, 2022

Initially, scientists considered COVID-19 a respiratory condition, but they are slowly building up a clearer picture of the wide-ranging impacts of the disease. Researchers have now shown that COVID-19 can affect many systems in the human body. A recent study investigated the longer-term effects of COVID-19 in older adults. It found that around one-third of older adults with COVID-19 went on to develop new...

AHA News: The Legacy of Dr. Daniel Hale Williams, a Heart Surgery Pioneer

Feb 17, 2022

WEDNESDAY, Feb. 16, 2022 (American Heart Association News) -- In July 1893, James Cornish was admitted to Chicago's Provident Hospital with a knife wound to his chest, stemming from a barroom brawl. He needed surgery, but medical professionals at the time believed operating on the heart was too dangerous. That was about to change. Without antibiotics, adequate anesthesia or many of the tools used in modern-day heart surgery, Dr....

What is the difference between male and female breast cancer?

Sep 29, 2021

Breast cancer can develop in anyone, but it is more common in females than males. There are differences and similarities in the causes and risk factors of male and female breast cancer. Learning the signs and symptoms of breast cancer can help people know when and how to get help. It is also possible for a person to take preventative steps to reduce their chance of developing breast cancer. This article discusses the...

Antibiotic use linked to increased risk of colorectal cancer

Jul 13, 2021

The use of antibiotics has increased dramatically in recent years. New research indicates that increased use of antibiotics is linked to a greater risk of colon cancer, particularly in people under the age of 50 years. The new data reinforce the need to reduce the unnecessary use of antibiotics, which can put individuals at further risk of health problems. Antibiotics are extremely helpful in the treatment...

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