Researchers found that fruit flies can learn to connect different scents with sugar rewards depending on the hour. The insects' ability to tell time remained as long as events were separated by at least four hours.
Researchers developed an algorithm called KeyGenes that uses gene expression to predict the future identity of human fetal stem cells. The platform integrates data from both human fetal and adult tissue, allowing for more accurate differentiation protocols.
Researchers found a 35,000-year-old wolf bone in Siberia that reveals the most recent common ancestor of modern wolves and dogs. The discovery sheds light on the early origins of dog domestication, with implications for our understanding of human-wolf relationships.
A new study finds that measles virus has rigid surface proteins that can't tolerate mutations, making it less prone to evolution than the flu virus. This difference in protein stability may explain why measles only requires a two-dose vaccine during childhood for lifelong immunity.
A recent study found that the thunder god vine extract reduces food intake by up to 80% and causes a 45% decrease in body weight in obese mice. The compound Celastrol enhances leptin action, a hormone signaling fullness to the brain, improving ER function and sensitivity.
A recent study published in Cell Metabolism has raised doubts about the age-reversal properties of GDF-11, a molecule previously linked to anti-aging effects. The research found that GDF-11 actually worsened muscle regeneration in older animals, contradicting previous findings.
Researchers discovered jumping spiders use 'spectral filtering' to see in three color channels, like humans. Their principal eyes detect red, green, and UV light, with a filter converting some green-sensitive cells to see red.
Scientists Bevil Conway and his team found impressive individual differences in color perception, with people falling into three main camps. The survey also revealed that perception differed by age and sex, suggesting the influence of light on visual systems. These findings shed light on how different brains interpret colors.
Researchers studied flies' response to shadows, finding that they display persistent defensive behavior, generalizable across contexts. The study suggests that flies may help understand the fundamental neurochemistry of fear and emotions.
A Swedish study of 98 infants found that C-section babies had a less similar gut microbiome to their mothers compared to vaginal births. The researchers also discovered that cessation of breastfeeding led to a shift in the infant's gut bacteria, with certain species more commonly seen in adults emerging.
Researchers grew 22 organoids from tumor tissue of 20 patients with colorectal cancer and found they closely replicate key properties of the original tumors. These cultures can be used to predict drug sensitivity and pave the way for personalized treatment approaches.
Researchers discovered that rorqual whale nerves can double in length without damage, supporting their extreme lunge feeding mechanism. This discovery highlights the importance of flexible nervous systems in accommodating body deformation.
Researchers studied wild bearded capuchin monkeys cracking nuts using stone hammers and found they modulate strikes based on the condition of the nutshell. This sophisticated ability suggests a cognitive accomplishment.
The study, which followed four individuals for a year after they were treated with embryonic stem cell-derived retinal pigment epithelial cells, observed no serious side effects related to the therapy. The researchers reported positive results in visual acuity improvements among patients.
A team of Belgian philosophers and plant biotechnologists explores the widespread anti-GMO sentiment, attributing it to cognitive processes and emotional representations. They argue that the public should form opinions on GMOs on a case-by-case basis, rather than focusing on the technology itself.
Researchers successfully use gene-editing technology to prevent mutated mitochondrial DNA from being passed down to offspring in mice, offering a potential cure for maternally inherited genetic disorders. The approach involves injecting mRNA into mother's oocytes or early embryos and could be easily implemented in IVF clinics worldwide.
Researchers discovered a metabolic signature associated with major depression, including changes in mitochondrial DNA and telomere length. The findings suggest that depression may be linked to the body's response to environmental stressors.
The study analyzed ancient mammoth genomes to understand population dynamics and genetic diversity. The results showed low genetic variation and inbreeding, indicating a small population size. The research provides insight into the woolly mammoth's evolutionary history and potential reasons for their extinction.
A new study uses fossil data to predict that most rodent species will evolve continuously growing molar teeth over the next 50 million years. The researchers found evidence that many species possess the potential for acquiring dental stem cells, which are required for continuous tooth growth.
A new study reveals that tinnitus is represented differently in the brain compared to normal sounds, and that it may not be just a 'gap' left by hearing damage. The discovery could inform treatments such as neurofeedback and electromagnetic brain stimulation.
A study by University of Chicago scientists reveals how immune cells shape the gut microbiota to naturally limit infections. Intestinal immune cells, called type 3 innate lymphoid cells (ILC3s), play a crucial role in detecting harmful bacteria.
Researchers discovered vampire squid alternate between reproductive and resting phases, a pattern common in fish, not other cephalopods. The slow metabolism suggests longer lifespan than shallow-water squid species, highlighting the need to enhance knowledge of deep-sea organisms.
Researchers analyzed octopus arm coordination in crawling and found that the animals have a unique motor control strategy to match their
Researchers found that men donate four times more to an attractive female fundraiser in response to another male's contribution, suggesting a subconscious competitive helping behavior. To improve fundraising success, seed campaigns with larger donations early and make fundraisers smile.
Researchers found that Papua New Guineans have microbiomes with greater bacterial diversity and lower inter-individual variation compared to US residents. The study proposes a model based on ecological theory that explains the decline of microbiota diversity in urban-industrialized societies.
The study found a significant association between periodontitis and cardiovascular disease, particularly among men and younger individuals. Researchers suggest that alternative therapies, such as cholesterol-lowering medication, may prevent both oral infections and cardiovascular inflammation.
Researchers have been focusing on long-term solutions, but Levy argues that new approaches are needed to prevent infection and disease. He highlights six questions that deserve more attention, including the role of innate immune response, CD8+ T cells, and strategies for an HIV vaccine and cure.
Researchers explore whether genetic variations can modify the placebo effect, potentially leading to better patient selection for clinical trials. Genetic tests could help identify individuals who are unlikely to benefit from treatment, allowing for more efficient and effective medical care.
Recent studies in Cancer Cell and Trends in Immunology review the intricate relationship between the immune system and cancer. Research has shown that harnessing anti-tumor immunity can be a promising approach to treating various cancers.
A genetic mutation associated with an increased risk of developing eating disorders in humans has been found to cause obsessive-compulsive-like behaviors and social impairments in mice. The study identified estrogen-related receptor alpha as a contributing gene to the risk of anorexia nervosa or bulimia nervosa.
Researchers discovered that cancerous tumor cells in soft-shell clams are contagious and can spread from one animal to another. The study found that the cancer originated from a single lineage of tumor cells and has persisted ever since.
Researchers found that neural activity in language-sensitive brain regions in infants and toddlers with ASD was similar to normal in those who developed good language ability, but nearly absent in those with poor outcomes. The study's results have the potential to predict later language outcome by early childhood.
Researchers James P. Allison and Padmanee Sharma argue that combining targeted therapies with immunotherapy could be key to developing curative treatments for various cancer types, building on promising results from clinical trials.
Two independent studies reveal that tumor-secreted molecule ImpL2 causes wasting syndrome, also known as cachexia, in fly cancer models. Researchers found that depletion of ImpL2 levels significantly reduced wasting in flies, suggesting new candidates for mediators of cachexia and novel therapeutic approaches.
Researchers attach microstimulator and geomagnetic compass to blind rat brains, allowing them to learn new navigation skills. The findings suggest that humans could also expand their senses through artificial sensors, restoring allocentric sense in blind individuals.
In a groundbreaking study, researchers used optogenetics to artificially associate the memory of a foot shock with an unrelated environment, triggering increased fear-related behavior. The findings suggest that co-activated cell ensembles can link two distinct memories, paving the way for new treatments of psychiatric disorders.
The expansion of no-take marine reserves in Australia's Great Barrier Reef Marine Park has led to an increase in fish numbers and sizes, particularly coral trout. However, researchers emphasize that no-take reserves alone are not enough to protect the reef from other threats such as pollution, sedimentation, and climate change.
This special issue delves into the latest research on molecular gastronomy, perception of food, growing crops, obesity, and diet's impact on the circadian clock. Researchers discuss the science behind cooking techniques, flavor creation, and how chefs are pioneering new fermentation reactions.
Research reveals vitamin D's role in preventing chronic inflammation that causes cardiometabolic disease, including type 2 diabetes and heart disease. Vitamin D helps immune cells reduce inflammation and prevent the formation of fat-laden macrophages.
A stem cell-based approach using human embryonic stem cells proved effective in improving insulin sensitivity and glucose metabolism in mice. The combination of stem cell transplantation and antidiabetic drugs resulted in rapid weight loss and significant improvements in glucose control compared to individual treatments.
Researchers are developing microfluidic solutions for easy-to-use, disposable, inexpensive, and high-throughput sperm selection. These methods offer promising results for single-sperm genomics, in-home male fertility testing, and wildlife conservation efforts.
Researchers discovered that bioluminescent fungi produce light to attract insects that disperse their spores. The circadian control of bioluminescence makes the process more efficient and helps the mushrooms save energy. Studying these organisms is crucial for understanding forest ecosystems and the carbon cycle.
A study published in Cell Reports reveals a potential strategy for promoting the right balance of gut microbes in antibiotic-treated mice by manipulating the autoinducer-2 (AI-2) chemical signal. The researchers found that high levels of AI-2 increased the expansion of Firmicutes phylum, leading to a healthy state of the gut microbiota.
Chromothripsis, a hidden genetic disorder, can cause severe birth defects in children despite its absence in healthy parents. The condition affects multiple genes and leads to difficulties getting pregnant, miscarriages, and intellectual disability.
Researchers report that aligning work schedules with employees' biological clocks can improve sleep duration and quality, as well as social jetlag and general wellbeing. The study found that flexible work schedules reduced stress and improved satisfaction with leisure time.
Researchers propose two novel gas-sensing systems to measure intestinal gases, which may contribute to gastrointestinal diseases. These non-invasive methods could provide medical devices that reduce medical costs and improve healthcare system efficiency.
A comparative analysis by MIT researchers reveals mutations in the Indian H1N1 flu viruses that make them distinct from the 2009 vaccine strain. The study highlights the need for updated vaccination strategies to account for potential new viruses.
Researchers observed young praying mantises jumping to a target with precision and accuracy, rotating their bodies at 2.5 times per second. The insects' unique ability to maintain stability and control during flight has implications for the development of tiny robots.
Researchers found that post-reproductive female killer whales act as leaders and share valuable ecological knowledge, helping their younger kin survive. This discovery suggests a potential explanation for the evolution of menopause in humans.
Researchers discover molecule found in tree leaves speeds up energy metabolism in female mice, but not in males. The findings suggest a promising strategy for combating obesity and highlight the need to study both sexes while developing drugs.