Health & Fitness

For the first time ever, a research team has peered inside a human cell to view Mediator-bound pre-initiation complex, a multi-subunit machine responsible for regulating gene expression.

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New nanoprobes tested in zebrafish could help detect cancer more accurately and might aid diagnosis and therapy in the future.

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Electric stimulation may be able to help blood vessels carry white blood cells and oxygen to wounds, speeding healing, a new study suggests.

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The genetics of human eye color is much more complex than previously thought.

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Patients suffering from dry eye disease symptoms have a lower quality of life compared to those without symptoms, a new study reports. The findings showed that patients with the condition reported negative effects on visual function, their ability to carry out daily activities and their work productivity.

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Researchers have developed a noninvasive technique that can capture images of rod and cone photoreceptors with unprecedented detail. The advance could lead to new treatments and earlier detection for retinal diseases such as macular degeneration, a leading cause of vision loss.

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In a recent study, aspirin use to avoid the development of cardiovascular diseases in healthy individuals was associated with a 29 percent lower likelihood of COVID-19 infection, as compared to aspirin non-users. The proportion of patients treated with aspirin was significantly lower among the COVID-19-positive individuals, as compared to the COVID-19-negative ones. And those subjects who had been treated with aspirin were less associated with the likelihood of COVID-19 infection than those who were not.

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Memory involves both recall of specific details (who, where, when) and feelings of remembering and reliving past events. New research shows that these objective and subjective memories function independently, involve different parts of the brain, and that we make decisions based on subjective memory.

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The mosquito protein AEG12 strongly inhibits the family of viruses that cause yellow fever, dengue, West Nile, and Zika and weakly inhibits coronaviruses, according to scientists. The researchers found that AEG12 works by destabilizing the viral envelope, breaking its protective covering. The findings could lead to therapeutics against viruses that affect millions of people around the world.

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A team of neuroscientists is uncovering how psychedelics affect brain activity. New work shows a strong connection in rodent models between brain activity and behaviors resulting from psychedelic treatment, a step forward in the quest to better understand their potential therapeutic effects.

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New research suggests that microbes in the gut may contribute to certain symptoms associated with complex neurological disorders.

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Blood pressure measurements in children and adolescents should be taken from both arms after new research showed substantial differences could be seen depending on which arm was used.

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Scientists studied the adaptive immune system as a kind of artificial intelligence that can be trained to produce the correct response to invasion by pathogens. This work may lead to more effective vaccines and immune boosting therapies.

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New research suggests that the diversity of the microbial community involved in sugarcane ethanol fermentation processes plays a significant role in its performance. Selecting the right bacteria could increase ethanol production by more than a billion liters per year, considering Brazil alone.

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Newly published research has revealed a close link between proteins associated with Alzheimer's disease and age-related sight loss. The findings could open the way to new treatments for patients with deteriorating vision and through this study, the scientists believe they could reduce the need for using animals in future research into blinding conditions.

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The link between mental imagery and emotions may be closer than we thought.

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Photosynthetic organisms harvest light from the sun to produce the energy they need to survive. A new paper published by University of Chicago researchers reveals their secret: exploiting quantum mechanics.

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Analysis of stained c. 500-year-old manuscript provides direct evidence of wear and use during childbirth. Birthing girdles are thought to have been used in medieval society to protect the wearer during pregnancy and childbirth - dangerous times for women.

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A new study explored why the severity of motion sickness varies from person to person by investigating sources of cybersickness during VR use.

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Despite widespread publicity, the 2002 landmark study on the potential dangers of hormone therapy for postmenopausal women is completely unknown to most women. 

New research from the Stanford University School of Medicine discovered that only 29 percent of the women surveyed knew anything about the study two years later. Additionally, only 40 percent of the women were able to identify possible risks and benefits linked to hormone therapy. 

Hormone therapy is used to ease your symptoms of menopause, but has also been widely prescribed for preventive purposes, based in part on earlier observational studies that had suggested it could help protect women against heart disease, weak bones, and dementia. 

In July 2002, the Women's Health Initiative (WHI) abruptly ended its combination of estrogen and progestin therapy study, as their data discovered higher rates of breast cancer, heart attacks, strokes, and blood clots in the population taking the hormones, compared to those taking placebos. 

Later, in April 2004, WHI also halted the portion of the study for estrogen-only therapy, after finding the hormone did not offer any protective heart disease prevention, but rather increased your risk of stroke and blood clots. 

The WHI findings triggered enormous changes in the use of hormone therapy, and prescriptions had dropped 38 percent by 2003. 

Senior author Randall Stafford, MD, PhD, said their latest survey indicates there's a huge problem in communicating crucial health information to patients effectively, which in turn is indicative of an even larger problem – ensuring that people can make informed decisions about their medical care. 

Menopause April 10, 2007

Women's Health Initiative June 21, 2007

WHI March 2, 2007 (The Estrogen-Alone Study Links)

Women's Health Initiative (The Estrogen-Plus-Progestin Study Links)

Eurekalert September 18, 2007

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