University of California, San Diego researchers found that phytoplankton and bacteria in the water affect sea spray aerosol's atmospheric-changing properties. This influences cloud formation and climate change.
Researchers have discovered a 36.4-million-year-old whale fossil that suggests baleen whales' ancestors were toothy suction feeders, diverging from their hunting lifestyle to filter-feed tiny marine animals. The study also reveals that whales likely lost hind limbs more recently than previously estimated.
Researchers have successfully resurrected a four-billion-year-old protein in modern E. coli bacteria, protecting it from viruses. This breakthrough could lead to the development of crop-resistant plants, as the ancient protein can't be hijacked by phages.
Researchers have identified a link between certain static images and gamma oscillations that occur when viewing black and white bar patterns, which can trigger seizures in people with photosensitive epilepsy. By adjusting image parameters, such as contrast and bar width, these images can be reduced to minimize the risk of seizures.
Researchers have created detailed atlases of immune cells surrounding human tumors, revealing unique profiles that can estimate cancer prognosis and identify potential targets for early immunotherapy. The findings have the potential to inspire new precision immunotherapy clinical trials.
A study published in Cell Metabolism found that a liver hormone called FGF21 may play a role in determining who has a sweet tooth. The researchers discovered two variants of the FGF21 gene associated with increased intake of sweets and candies.
Researchers found that brain glucose levels play a crucial role in 'hitting the wall,' and training can help preserve glucose as an energy source for the brain. A small molecule drug also stimulated PPARδ, increasing fat oxidation and preventing hypoglycemia in mice.
The tea tree genome contains diverse genes that produce antioxidants and caffeine, contributing to its rich flavors. Researchers have successfully sequenced the genome, which is four times larger than the coffee plant genome and contains multiple copies of disease-resistant genes.
Brain-to-brain synchrony was more pronounced in students who were more engaged during class, reflecting their liking for the teacher and peers. This phenomenon may support synchronized behavior in human interactions, such as conversations or group activities.
A study reveals that cognitive stimulation and social interactions increase lifespan in mice with colon tumors through a wound repair response. Environmental enrichment also reduces inflammation, improves tumor vasculature, and promotes immune cell activity to defend against cancer.
The study maps the evolution of dog breeds using gene sequences from 161 modern breeds, uncovering evidence of ancient canine migration across the Bering land bridge. The research also sheds light on the origins of various breeds, including herding dogs and hairless breeds.
Researchers have found a way for a caterpillar to break down polyethylene, a common type of plastic. The larvae of the Galleria mellonella moth can digest and chemically transform polyethylene into ethylene glycol, offering a potential solution to managing plastic waste.
Researchers have developed tools to visualize and control bacterial activity in the gut, opening up new possibilities for therapeutic delivery. These tools enable precise control of bacterial gene activity in specific locations within the gastrointestinal tract.
Researchers found that brain regions for missing body parts are repurposed in congenital one-handers, suggesting a new understanding of brain organization based on function rather than body part. This discovery reveals remarkable brain plasticity and holds potential for developing prosthetic limbs.
Researchers discovered that macrophages aggregate around cardiac cells to facilitate electrical conduction, helping the heart beat in rhythm. This finding suggests a new role for immune cells in electrophysiology and may lead to new therapeutics for heart disease.
A recent review explores why animals favor one side of the brain, highlighting perceptual specialization, motor specialization, and parallel processing. The research also sheds light on environmental influences and genetic aspects of asymmetrical development, potentially providing insight into brain conditions in humans.
Researchers have identified a frog peptide, urumin, that can destroy many strains of human flu and protect mice against infection. The peptide targets the hemagglutinin protein on the virus, destabilizing it and killing it.
Researchers in China have developed a battery prototype that captures atmospheric nitrogen to generate electricity, offering a promising alternative to existing lithium-nitrogen batteries. The battery's energy output is brief but comparable to other lithium-metal batteries, making it a potential solution for renewable energy storage.
Researchers discovered that young European eels detect subtle differences in the earth's magnetic field, helping them swim towards the Gulf Stream, a conveyor belt transporting them to Europe. The findings reveal that juvenile eels use their magnetic map sense to increase their chances of catching a free ride to their destination.
A mouse study reveals that gut microbes play a crucial role in age-associated inflammation and premature death. Imbalances in the gut microbiome lead to leaky intestines and trigger inflammation. Researchers hope to develop drugs or probiotics to restore gut barrier function and reduce age-related inflammation.
A study on fruit flies found that a gene called THADA plays a key role in regulating metabolism and energy storage, which may have relevance to human obesity and cold tolerance. The researchers observed that THADA knockout flies were more sensitive to cold and had slower metabolisms, leading to obesity.
A study reveals that Bifidobacterium longum has adapted to the infant gut by producing an enzyme called LnbX, which enables growth on a sugar abundant in human milk. This adaptation suggests a possible evolutionary route for the breast milk-driven symbiosis between gut microbes and humans.
A recent study has identified a gene mutation as the cause of delayed sleep phase disorder (DSPD), a common sleep disorder affecting up to 10% of the public. The CRY1 protein plays a crucial role in regulating the circadian clock, and a single-point mutation can lead to prolonged sleep onset times and irregular sleep patterns.
Researchers found that cephalopods use RNA editing extensively, with over half of their transcribed genes being edited. This process has profoundly constrained the evolution of the cephalopod genome.
A collaborative effort analyzed iPS cells to understand how individual mutations contribute to polygenetic diseases, revealing that smaller collections of cells can produce results and identifying small changes in gene expression with dramatic effects on cells. The study also found that some effects manifest before cell differentiation.
As people age, they experience a decline in deep sleep, which is crucial for memory and cognition. This shift can start as early as the mid-thirties and becomes more pronounced with age.
Researchers have discovered Europe's first cave fish, a loach species, in a hard-to-reach underground water system in Southern Germany. The discovery reveals that adaptation to subterranean habitats can occur rapidly, with the loach evolving within just a few thousand years.
A clinical trial found that brain and lung cancer patients can safely receive high doses of vitamin C, which increases sensitivity to radiation and chemotherapy. The study also showed that altered iron metabolism in cancer cells leads to increased death caused by vitamin C.
Researchers found that fang blenny venom contains a neuropeptide, lipase, and opioid peptide, which cause a sudden drop in blood pressure in predators. This leads to disorientation and can help the fish escape. The venom's unique components have also inspired mimicry among other fish.
Researchers studied how Bdellovibrio bacteriovorus tracks down prey using high-resolution video microscopy. The study found that the bacterial predator uses hydrodynamic flow fields generated by its own swimming movements and those of its prey to bring them in close proximity, increasing the chances of a successful attack.
A peptide targeting senescent cells has shown evidence of improving healthspan in naturally-aged mice and mice genetically engineered to rapidly age. The approach reverses age-related loss of fur, poor kidney function, and frailty by blocking the ability of a protein implicated in senescence.
Researchers found that kea parrots can transmit playfulness through their vocalizations, inducing play in other birds. The findings suggest an emotionally contagious effect, similar to human laughter.
Researchers found that preterm babies' brain responses to gentle touch are reduced compared to full-term infants. Positive touch experiences in the NICU enhance brain response to touch, while painful procedures can affect sensory development.
Scientists discovered that tardigrades' unique protein-based mechanism protects them from desiccation by forming glass-like solids, which can also safeguard other biological materials. This breakthrough has potential uses in agriculture and pharmaceuticals, particularly in drought-resistant crops and medication storage.
Researchers have successfully rejuvenated old gut stem cells by restoring Wnt signaling, suggesting a potential pathway to target for clinicians. This breakthrough offers new insights into the role of Wnt proteins in controlling stem cell growth and pluripotency in the gut later in life.
Researchers discovered that robber flies employ a constant bearing angle strategy and 'lock on' to their prey at a distance, allowing them to capture small targets. The flies' eyes have been found to have a high spatial resolution, enabling them to detect prey items up to 100 body lengths away.
This study reveals that rove beetles have evolved into army ant parasites multiple times, mimicking the ants' behavior and pheromone chemistry to gain acceptance. The discovery challenges Gould's hypothesis of convergent evolution, suggesting a predictable path for the interaction between these organisms.
After 40 days of daily training using a strategic memory improvement technique, individuals with typical memory skills more than doubled their memory capacity. Brain scans showed altered brain functions and similar connectivity patterns as those of world champion memory athletes. Four months later, recall performance remained high.
A mouse study found that suppressed immunity during pregnancy creates a window of opportunity for the H1N1 influenza virus to infect and mutate into more virulent strains. The researchers believe that pregnant women are more susceptible to severe flu infections due to their dampened immune system.
A study found that exercise, particularly high-intensity interval training, increases mitochondrial capacity and improves insulin sensitivity in both young and older adults. This suggests that exercise may help stave off old age by rejuvenating key organelles responsible for energy production and muscle growth.
Researchers propose using CRISPR technology to domesticate sustainable and nutritious crops like wild legumes, quinoa, and amaranth. This approach aims to create 'biologically inspired organisms' by deleting existing genes instead of introducing new ones.
Researchers used systems biology approaches to study the emergence of life and found that a few simple compounds could support a phosphate-free metabolism. This discovery challenges the current understanding of life's origin and suggests that an early self-sustaining metabolic network predated the emergence of nucleic acids.
Researchers developed a minimally invasive tool to measure muscle impairment using fiber-optic technology. The technique accurately assesses muscle properties, enabling personalized treatment plans for patients with movement disorders.
Researchers discovered that weakly adherent cancer cells are more likely to migrate and invade other tissues compared to strongly adherent cells. This finding suggests that adhesion strength may serve as a general marker of metastatic cells.
Researchers found Zika virus alters host cell cytoskeletal architecture to build replication factories, potentially targeting with existing chemotherapy drugs. This study suggests a new approach to treating Zika-related disorders like microcephaly and neurodegenerative diseases.
Researchers found that Neanderthal DNA sequences still influence human gene expression, contributing to traits such as height and susceptibility to schizophrenia or lupus. The study used the Genotype-Tissue Expression Project dataset and analyzed RNA sequences in 52 different tissues.
A new study suggests that a fasting-mimicking diet can reprogram pancreas cells in diabetic mice, enabling them to produce insulin and repair themselves. The researchers found that the diet triggered developmental reprogramming in the pancreas, rebuilding damaged areas and restoring function.
Research reveals that individual neurons or specific types of neurons can silence genes from one parent or the other, particularly during brain development. As the brain matures, these differences tend to decrease, but some genes continue to exhibit differential expression in adult brains.
Researchers found that itch and mild pain signals can be transmitted through the same spinal cord neurons, with GRP neurons acting as a 'braking system' to mitigate intense pain. In mice without these neurons, pain responses were increased and scratching behaviors were altered.
The study found that Central Africa's forest elephant population has dropped by over 80% in a decade, mainly due to illegal poaching. The researchers emphasize the need to reduce demand for ivory and recognize forest elephants as a distinct species to save them from extinction.