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Top news stories for the week 51

Monday, Dec 16

Breathing coordinates brain rhythms for memory consolidation during sleep

Just as a conductor coordinates different instruments in an orchestra to produce a symphony, breathing coordinates hippocampal brain waves to strengthen memory while we sleep, reports a new Northwestern Medicine study.

Dec 16, 2024

0

183

Study finds lower rates of death from Alzheimer's disease among taxi and ambulance drivers

A new study raises the possibility that jobs that require frequent spatial processing—such as figuring out a taxi route or the best way to navigate to a hospital—could lead to lower rates of death from Alzheimer's disease. ...

Dec 16, 2024

1

93

Walking away from depression: How daily steps improve mental health

Can you literally step away from depression? A new global review of data found that "increasing the number of daily steps, even at modest levels, was associated with a reduction in depressive symptoms."

Dec 16, 2024

1

87

Researchers find previously unknown links between microbial bile acids and the risk of colon cancer

Microbes living in our guts help us digest food by reshaping the bile acids that our livers produce for breaking down fats. It turns out that two of these microbially-modified bile acids may affect our risk—in opposite ...

Dec 16, 2024

0

70

C. elegans study reveals hidden mechanism of swallowing

A research team led by Professor Kim Kyuhyung at the Department of Brain Sciences, DGIST, has discovered a new principle that regulates how food moves through the digestive tract and is swallowed. They found that the Piezo ...

Dec 16, 2024

0

63

Diabetes drug linked to increased risk of severe eye condition

Two independent studies from the University of Southern Denmark (SDU) show that patients with type 2 diabetes who are treated with the drug Ozempic have an increased risk of developing damage to the optic nerve of the eye, ...

Dec 16, 2024

0

59

Gene inhibition provides potential way to overcome cancer cells' resistance to chemotherapy drug cisplatin

A new study from Cedars-Sinai Cancer reveals a potential way to overcome tumor resistance to a common chemotherapy drug called cisplatin. The study, published in Science Advances, could improve the effectiveness of the widely ...

Dec 16, 2024

0

54

Tuesday, Dec 17

The brain's processing paradox: Study quantifies the speed of human thought

Caltech researchers have quantified the speed of human thought: a rate of 10 bits per second. However, our bodies' sensory systems gather data about our environments at a rate of a trillion bits per second, which is 100 billion ...

Dec 17, 2024

2

177

Inflammatory dietary habits linked to 84% higher risk of dementia

Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases at UT Health San Antonio, Boston University School of Medicine and the Framingham Heart Study have found that higher scores on the Dietary Inflammatory Index ...

Dec 17, 2024 report

1

139

New gene therapy could alleviate chronic pain, researchers find

Pain is meant to be a defense mechanism. It creates a strong sensation to get us to respond to a stimulus and prevent ourselves from further harm. But, sometimes injuries, nerve damage, or infections can cause long-lasting, ...

Dec 17, 2024

0

73

Drinking a moderate amount of wine may lower the risk of serious cardiovascular disease in high-risk people

Drinking a small or moderate amount of wine may lower the risk of serious cardiovascular disease in people at a higher risk who are following a Mediterranean diet, according to research published in the European Heart Journal.

Dec 17, 2024

0

64

Cognitive flexibility: How neural variability shapes decision-making in different brains

Research published in Nature has revealed that neural computations in different individuals can be implemented to solve the same decision-making tasks, even when the behavioral outcomes appear identical.

Dec 17, 2024 feature

0

62

Putting the brakes on prostate cancer cells: Androgen receptor can alter normal prostate growth

Prostate cancer hijacks the normal prostate's growth regulation program to release the brakes and grow freely, according to Weill Cornell Medicine researchers. The discovery, published Dec. 13 in Nature Communications, paves ...

Dec 17, 2024

0

58

Scientists uncover protein that helps cancer cells dodge CAR T cell therapy

Scientists at City of Hope have collared a tricky culprit that helps cancer cells evade CAR T cell therapy. CAR T cell therapy harnesses the immune system to seek out and kill tumor cells. This treatment is used in certain ...

Dec 17, 2024

0

52

Wednesday, Dec 18

Major clinical trial suggests vagus nerve stimulation relieves severe depression

People with severe, treatment-resistant depression who received a nerve-stimulating therapy showed significant improvement in depressive symptoms, quality of life and ability to complete everyday tasks after a year, according ...

Dec 18, 2024

0

174

Researchers find new way to 'starve' prostate cancer tumors at the cellular level

New research by a team of Indiana University School of Medicine scientists and their collaborators has uncovered a novel vulnerability in prostate cancer animal models that starves prostate tumors of critical nutrients and ...

Dec 18, 2024

0

85

What is metformin's secret sauce? New study shows how 'wonder drug' works in living animals

Millions of people take metformin, a type 2 diabetes medication that lowers blood sugar. The "wonder drug" has also been shown to slow cancer growth, improve COVID outcomes and reduce inflammation. But until now, scientists ...

Dec 18, 2024

0

66

Solitude is better for your health when it's not too intense, research suggests

Hiking by yourself deep in a forest and similar episodes of intense solitude are not as likely to restore energy and enhance social connectedness as less complete forms of solitude, such as reading in a cafe or listening ...

Dec 18, 2024

0

47

Managing adult ADHD: Comprehensive study compares stimulants, atomoxetine and non-pharmacological therapies

Stimulants and atomoxetine are the only effective interventions to reduce short-term adult ADHD symptoms, yet show limited evidence for long-term outcomes and quality of life improvements, according to a study by the University ...

Dec 18, 2024 report

0

46

Leading AI chatbots show dementia-like cognitive decline in tests, raising questions about their future in medicine

Almost all leading large language models or "chatbots" show signs of mild cognitive impairment in tests widely used to spot early signs of dementia, finds a study in the Christmas issue of the BMJ.

Dec 18, 2024

0

44

Your lifestyle may be aging your brain faster than you think

New research from the University of the Sunshine Coast's Thompson Institute has found a relationship between lifestyle choices that affect dementia risk and early signs of aging in the brain.

Dec 18, 2024

0

39

Thursday, Dec 19

How a newly examined gut microbe drives the gut-lung axis

A team led by University of Toronto researchers has discovered a new communication pathway between the gut and lung.

Dec 19, 2024

0

115

Precise map of primate foveolar cortex uncovers intricacies of brain's visual system

Humans and other primates are innately able to perceive fine details, vibrant colors and focus their attention on specific elements of what they are seeing at a given time. This ability is supported by the foveola, a tiny ...

Dec 19, 2024 feature

0

101

Research suggests coffee may protect against cognitive decline in people with atrial fibrillation

Drinking multiple cups of coffee a day may help prevent cognitive decline in people with atrial fibrillation (AFib or AF), according to new research published in the Journal of the American Heart Association.

Dec 19, 2024

0

79

Study finds slowing of age-related declines in older adults

A study from the Robert N. Butler Columbia Aging Center at the Mailman School of Public Health reveals significant improvements in the health of older adults in England when compared to previous generations.

Dec 19, 2024

0

78

Molecular and cellular level research shows a sharp sex divide for long COVID—women are more vulnerable

Scientists have identified "immune pathways" during acute coronavirus infection that are associated with the development of long COVID, and while some pathways are the same for men and women, others differ dramatically along ...

Dec 19, 2024 feature

0

67

Research reveals a molecule that may help slow aging while on a restricted diet

A multi-institutional team from China and the U.S. has identified a molecule that may play a role in slowing the aging process in some animals consuming a restricted diet. The team has published two papers on their work in ...

Dec 19, 2024 report

0

63

Adding sweetener to coffee enhances 'night-owl' effects of caffeine, research reveals

Adding sugar or artificial sweeteners to coffee disrupted the body clocks in mice more than coffee on its own, researchers have found, with it causing day and night to be reversed in some mice. If this holds for humans as ...

Dec 19, 2024

0

54

Friday, Dec 20

Commercial tea bags release millions of microplastics, entering human intestinal cells

UAB research has characterized in detail how polymer-based commercial tea bags release millions of nanoplastics and microplastics when infused. The study shows for the first time the capacity of these particles to be absorbed ...

21 hours ago

0

402

International study reveals COVID-19 pandemic's impact on other causes of death

Researchers have analyzed cause-of-death data for 24 countries before and during the COVID-19 pandemic. The researchers found that life expectancy declined in 2020 for all but four of the 24 included countries, with the US ...

17 hours ago

0

66

Experimental drug that summons 'warriors of the immune system' shows early promise against non-Hodgkin lymphoma

An investigational therapy is demonstrating preclinical promise against non-Hodgkin lymphoma by boosting natural killer cells and efficiently annihilating the malignancy without toxicity to the patient, a team of cancer biologists ...

17 hours ago feature

0

46

Using an AI tool, researchers find poor vascular health accelerates brain aging

Using an AI tool, researchers at Karolinska Institutet have analyzed brain images from 70-year-olds and estimated their brains' biological age. They found that factors detrimental to vascular health, such as inflammation ...

23 hours ago

0

30

Older age linked to increased complications after breast reconstruction

For women undergoing breast reconstruction after mastectomy, older age is associated with small but significant increases in certain complications, reports a study in the journal Plastic & Reconstructive Surgery.

17 hours ago

0

28

Study reveals brain's role in starting meals through GABA, dopamine

When you are feeling hungry, the brain takes the necessary steps toward consuming a meal. Many of these steps are not well known, but a new study published in the journal Metabolism by researchers at Baylor College of Medicine ...

20 hours ago

0

26

Optogenetics approach reveals how alcohol use disorder impairs cognitive flexibility

Alcohol use disorder (AUD) affects about 400 million people worldwide and is a leading cause of serious illnesses such as cancer, cardiovascular disease, liver disease and stroke. Beyond these physical impacts, AUD profoundly ...

17 hours ago

0

25

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