ScienceDaily

Researchers report impaired NK-cell function during long-duration space travel.

New science uncovers how an unlikely culprit, Porphyromonas gingivalis (Pg) -- the bacterium commonly associated with chronic gum disease -- appears to drive Alzheimer's disease (AD) pathology.

As coral species die off, they may be leaving a death spiral in their wake: Their absence could be sapping life from the corals that survive. In a new study, when isolated from other species, corals got weak, died off or grew in fragile structures. The study…

Scientists have discovered the relaxation dynamics of a zero-field state in skyrmions, a spinning magnetic phenomenon that has potential applications in data storage and spintronic devices.

Scientists find and test a promising drug that stops cancer by interfering with the cancer cells' metabolism and other circadian-related functions.

Researchers have assessed the link between food-related hardships and obesity. Using a national sample of adults across the United States, the researchers learned that individuals who are food insecure are at an increased risk of obesity. Study results also…

Most of Earth's life-essential elements probably arrived with the planetary collision that produced the moon. Petrologists now conclude Earth most likely received the bulk of its carbon, nitrogen and other life-essential volatile elements from a collision with…

The light released from around the first massive black holes in the universe is so intense that it is able to reach telescopes across the entire expanse of the universe. Incredibly, the light from the most distant black holes (or quasars) has been traveling to…

Using active genetics technology, biologists have developed the world's first CRISPR/Cas9-based approach to control genetic inheritance in a mammal. The achievement in mice lays the groundwork for further advances based on this technology, including biomedical…

A new study shows that there is a very limited regeneration of cells in the brain of patients diagnosed with multiple sclerosis (MS). These findings underline the importance of treating MS at an early stage of the disease progression, when the affected cells…

Geologists demonstrate the reconstruction of the subduction of the Nazca Ocean plate, the remnants of which are currently found down to 1,500 kilometers, or about 900 miles, below the Earth's surface. Their results show that the formation of the Andean…

Fresh insights into the types of cells found in the brains of people with multiple sclerosis could help develop improved therapies, research has found. The study focused on cells in the brain that help to repair damage to nerve cells caused by the disease.

Water splitting, the process of harvesting solar energy to generate energy-dense fuels, could be simplified thanks to new research.

Scientists studying the relationship of telomeres to cancer made a surprising discovery: a cellular recycling process called autophagy -- generally thought of as a survival mechanism -- actually promotes the death of cells, thereby preventing cancer…

Normal gut bacteria are instrumental in inducing an immune response in the presence of invading pathogens. However, exactly how commensal bacteria cause CX3CR1+ macrophages in the intestine to protrude their tentacle-like dendrites to capture antigens,…

A new study confirms the urgency to tackle climate change. While it's known that extreme weather events can affect the year-to-year variability in carbon uptake, and some researchers have suggested that there may be longer-term effects, this study is the first…

A new study establishes that patients with chronic obstructive pulmonary disease (COPD) face heightened risks of death, critical illness, and hospitalization if they develop the flu and demonstrates the beneficial effects of influenza vaccination. The report…

Small infections can be fatal: Millions of people die each year from sepsis, an overreaction of the immune system. A new immune signaling molecule now provides the basis for potential new approaches in sepsis therapy.

Lead exposure in childhood appears to have long-lasting negative effects on mental health and personality in adulthood, according to a study of people who grew up in the era of leaded gasoline. The findings reveal that the higher a person's blood lead levels…

An organic molecule detected in the material from which a star forms could shed light on how life emerged on Earth.

A major study provides new evidence that emergency C-sections put new mothers at greater risk of experiencing mental health problems after giving birth.

A new study tackles one of the greatest mysteries about Titan, one of Saturn's moons: the origin of its thick, nitrogen-rich atmosphere. The study posits that one key to Titan's mysterious atmosphere is the 'cooking' of organic material in the moon's interior.

Scientists have already observed and predicted that high ringed seal pup mortality rates are linked to poor environmental conditions like early ice breakup and low snow. Researchers have now gone a step further by coupling these hypotheses with forecasts of…

Plants don't need noses to smell. The ability is in their genes. Researchers have discovered the first steps of how information from odor molecules changes gene expression in plants. Manipulating plants' odor detection systems may lead to new ways of…

With the UFC set to appear in Prague for the first time this February 23rd, Czech researchers have been getting into the fighting spirit. Participants were unable to predict fighters' MMA score based on 360 degree headshots -- but their face-based favorites…

Older patients with a diagnosis of chronic sinusitis -- a disease of the nasal cavity and paranasal sinuses that often persists over many years -- have a unique inflammatory signature that may render them less responsive to steroid treatment, according to a…

Land conservation programs that have converted tens of thousands of acres of agricultural land in Illinois back to a more natural state appear to have helped some rare birds increase their populations to historic levels, a new study finds. Other bird species…

Researchers have created 3D-printed flexible mesh structures that can be controlled with applied magnetic fields while floating on water. The structures can grab small objects and carry water droplets, giving them the potential to be useful as soft robots that…

A new advanced line of rice, with higher yield, is ready for final field testing prior to release. On average, it has a protein content of 10.6 percent, a 53 percent increase from its original protein content. It also needs less heat, time, and usually less…

Some people consider pufferfish, also known as fugu, a delicacy because of its unique and exquisite flavor, which is perhaps seasoned by knowledge that consumption of the fish could be deadly. Now, researchers have identified the major compounds responsible…