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pH comes from the term “power of Hydrogen”, or the hydrogen ion concentration present in a given solution. It helps to measure the acidity or alkalinity of a substance.

AI tool reveals how TB drugs kill bacteria at the molecular level

Tuberculosis (TB) is the world's deadliest infectious disease—and one of the hardest to cure. Standard treatment requires a cocktail of multiple drugs over at least six months, and one in five patients have a type of TB that resists these first-line medications.

25 Aug 2025

Urban heat and pollution linked to behavioral changes in children

Individuals living in urban cities are experiencing the combined effect of increasing temperatures and poor air quality, often referred to as the urban heat dome.

22 Aug 2025

Regular sleep schedule linked to better outcomes after heart failure

People recovering from heart failure should consider improving the regularity of their sleep, a study led by Oregon Health & Science University suggests.

21 Aug 2025

Hypothalamic neurons help maintain blood sugar during daily activities

The brain controls the release of glucose in a wide range of stressful circumstances, including fasting and low blood sugar levels.

21 Aug 2025

Edible microbeads trap fat to support weight loss

Weight-loss interventions, including gastric bypass surgery and drugs that prevent dietary fat absorption, can be invasive or have negative side effects.

21 Aug 2025

New study uncovers a surprising mechanism of resistance to immunotherapy

A new international study led by researchers at Moffitt Cancer Center, the Karolinska Institutet and the University of Texas MD Anderson Cancer Center has uncovered a surprising mechanism of resistance to immunotherapy: cancer's ability to injure nearby nerves.

21 Aug 2025

Research shows how lysosomes respond to stress

New research, published today in the journal Science, shows how lysosomes - organelles that act like cells' waste disposal system - respond to stress by becoming abnormally bloated, a process called lysosomal vacuolation that is associated with numerous diseases.

21 Aug 2025

New genome-wide CRISPR screening tool boosts natural killer cells to fight cancer

Natural killer (NK) cells became markedly better at killing cancer cells after scientists removed key gene targets identified through a new genome-wide CRISPR screening tool, according to new research from The University of Texas MD Anderson Cancer Center.

21 Aug 2025

Study shows the brain’s body map remains stable after limb loss

New research from the University of Pittsburgh School of Medicine and Cambridge University upends a long-standing belief about brain plasticity.

21 Aug 2025

Postmenopausal women with stroke history can safely use vaginal estrogen

Using vaginal estrogen tablets was not associated with an increased risk of recurrent ischemic stroke among postmenopausal women in a registry in Denmark, according to research published today in Stroke, the peer-reviewed scientific journal of the American Stroke Association, a division of the American Heart Association.

21 Aug 2025

Rethinking chronic disease management in older adults

Effectively managing chronic conditions like diabetes and hypertension can greatly improve quality of life, reduce complications and extend longevity for older adults.

20 Aug 2025

Elevated TMAO levels linked to higher risk of abdominal aortic aneurysms

Cleveland Clinic researchers have discovered a connection between elevated blood levels of TMAO (trimethylamine N-oxide) - a byproduct of gut bacteria digestion of nutrients found in red meat and other animal products - and a higher risk of abdominal aortic aneurysms.

20 Aug 2025

Extreme heat poses silent threat to older adults

Older adults often don't realize how vulnerable they are to extreme heat and most aren't prepared for long periods of hot weather, according to a review of more than 40 studies.

20 Aug 2025

Cancer cells break down nerve covers causing immune exhaustion and therapy resistance

Cancer cells can break down the protective covers around nerves, causing nerve injury that triggers chronic inflammation leading to immune exhaustion and eventual resistance to immunotherapy, according to new research from The University of Texas MD Anderson Cancer Center.

20 Aug 2025

Study clarifies how amylin receptors respond to drugs

Amylin, a hormone that controls appetite and blood sugar by activating three different receptors in the brain, could be the basis for the next blockbuster obesity drugs.

19 Aug 2025

Dengue antibody may block the spread of Zika virus in vulnerable areas of the body

A new study from the University of Alabama at Birmingham reveals that an antibody originally designed to fight dengue virus may also block the spread of Zika virus in vulnerable areas of the body - including the reproductive organs.

19 Aug 2025

Hybrid reading strategy for screening mammography reduces radiologist workload

A hybrid reading strategy for screening mammography, developed by Dutch researchers and deployed retrospectively to more than 40,000 exams, reduced radiologist workload by 38% without changing recall or cancer detection rates.

19 Aug 2025

FAST walk shows promise in improving gait for chronic stroke patients

Stroke remains one of the leading causes of long-term disability worldwide, affecting millions each year.

19 Aug 2025

Johns Hopkins team develops a more reliable AI for early cancer detection

Two studies led by Johns Hopkins Kimmel Cancer Center, Ludwig Center, and Johns Hopkins Whiting School of Engineering researchers report on a powerful new method that significantly improves the reliability and accuracy of artificial intelligence (AI) for many applications. As an example, they apply the new method to early cancer detection from blood samples, known as liquid biopsy.

19 Aug 2025

Electromechanical reshaping could be a gentler alternative to LASIK

Millions of Americans have altered vision, ranging from blurriness to blindness. But not everyone wants to wear prescription glasses or contact lenses.

18 Aug 2025