Research reveals chronic pain changes brain activity in response to acute pain, predicting worsening of ongoing back pain. The nucleus accumbens plays a key role in this process, with altered activity patterns in patients compared to healthy controls.
New research identifies a brain circuit that enables humans to make choices with high long-term benefits by delaying reward. The study found that vividly imagining the future reduces impulsive choice behavior, suggesting the anterior cingulate cortex plays a key role in dynamic adjustment of preference functions.
Researchers used EMR systems to extract phenotypes from DNA samples, replicating previously reported genetic associations for diseases such as atrial fibrillation and type 2 diabetes. The study supports the use of DNA resources coupled to EMR systems for rapid generation of large datasets.
Research reveals that brain damage to the ventromedial prefrontal cortex impairs judgment of harmful intent, leading to more lenient moral judgments for attempted harms. The study suggests that patients with VMPC damage primarily evaluate actions based on outcomes rather than intentions.
Researchers found that infants as young as 7 months old display sensitivity to human voice and emotional prosody in their brains, mirroring adult brain activity. The study suggests that critical neurodevelopmental processes underlying impaired voice processing in disorders like autism may occur before 7 months.
A new study reveals that Arctic reindeer have evolved to bypass their internal biological rhythms, relying instead on light and dark cycles to regulate hormone levels. This adaptation allows them to thrive in environments with no reliable light-dark cycle.
According to Roger Unger, obesity is the body's way of storing lipids in fat tissue to protect other organs. This protective mechanism fails when the body's fat tissue can't handle excess calories, leading to metabolic syndrome. The rise of leptin resistance also plays a key role in this process.
Researchers have identified genetic differences in an immune enzyme as a key factor in TB disease susceptibility and resistance. A medium level of this enzyme's activity is associated with protection against both TB and leprosy, offering new leads for TB treatment and vaccine development.
Research reveals that mice without an enzyme breaking down triglycerides exhibit improved metabolism with no negative effects, suggesting TGH as a promising therapeutic target. The liver compensates by synthesizing less fat and triglycerides are directed for oxidation.
Researchers discover that mother's milk induces liver production of FGF21, a molecule that activates brown fat to increase body temperature. This phenomenon may have far-reaching consequences for metabolic health in adulthood.
Researchers found that damselfish can distinguish between different species using only their ultraviolet facial patterns. The fish's ability to see in the UV range allows them to convey information about their identity and attract mates, while remaining inconspicuous to predators.
Researchers manipulate a schizophrenia susceptibility gene in fetal mice to unravel the link between prenatal brain development and adult cognition. The study finds that transient reduction of the Disrupted-in-Schozophrenia-1 gene leads to aberrant changes in adult animals, including perturbation of specific dopaminergic brain pathways.
Researchers found that unexpected stimuli enhance early and late electrical potentials in the hippocampus, with a memory recall for unexpected items. The nucleus accumbens is also involved, influencing subsequent processing to promote memory encoding.
Researchers found that forgetting is an active process to remove memory, involving a molecular pathway including small protein Rac. Forgetting helps new information come in by removing old memories.
Research reveals that flu-induced stress response is critical for resistance to secondary infection, involving increased production of glucocorticoids to control inflammation. The study found that mice without GCs were better able to suppress secondary bacterial infections, but lacking GCs led to a lethal excessive inflammatory response.
Researchers found that softer surfaces lead to disorganized cytoskeletons, while stiffer surfaces promote larger traction forces and more developed cadherin adhesions. Inhibition of myosin II decreases traction forces and causes cadherin adhesions to disappear.
A new study reveals that chromatin proteins defective in RTT, CdLS, and ATR-X syndromes are associated with each other and regulate imprinted genes. This cooperation may explain similarities between the associated human syndromes.
Researchers have discovered a developmental delay in the brain circuit that processes sensory information in mice with fragile X syndrome, which is associated with hypersensitivity and social withdrawal. This delayed development may contribute to the sensory processing deficits seen in humans with fragile X syndrome.
Research finds that selective brain damage, particularly in parietal regions, can modulate human spirituality and religious attitudes. The study identified a causative link between specific brain lesions and changes in self-transcendence, a personality trait reflecting spiritual feeling and behavior.
A new study suggests that morality and religion are linked but distinct concepts. Experimental moral psychology reveals that individuals' moral judgments operate independently of explicit religious commitments.
A new report reveals that a prion-like protein called CPEB may participate in memory in higher eukaryotes, including sea slugs. The protein's ability to switch between distinct conformational states suggests it could maintain stable states with unstable biological molecules.
Researchers have found a proton channel in sperm cells that allows them to rid themselves of excess protons when resting, enabling their movement in the female reproductive tract. This finding may lead to new ways of controlling male fertility and potentially even male contraception.
Scientists have identified a new mechanism that helps the body burn more energy, leading to increased fat burning and lean muscle mass. The study suggests that targeting the Fyn kinase enzyme may offer a promising approach for developing new weight loss treatments.
Researchers have made significant progress in understanding the relationship between cholesterol and heart disease, finding that it's not just one factor at play but rather a complex interplay of immune cells and proteins. The study highlights the importance of restoring the balance of this network to prevent vascular disease.
Two studies show that bats and toothed whales' echolocation abilities converge in the prestin gene, a hearing gene, leading to similar adaptations. The research suggests that convergence of complex traits like echolocation may be more common than previously thought.
The Nicotiana attenuata tobacco plant has developed a clever strategy to combat herbivorous caterpillars: it opens its flowers in the morning instead of at night. This change in flower phenology also attracts a new pollinator, the local hummingbird, which is satisfied with just nectar rewards.
A study published in Developmental Cell has identified protease-activated receptors as crucial for neural tube closure, a process disrupted in congenital birth defects such as anencephaly and spina bifida. The research suggests that this PAR signaling system may regulate the integrity of tissue to prevent neural tube defects.
A new report investigates the cognitive biases that lead people to misidentify common objects, such as guns or tumors. The researchers suggest retraining individuals in these professions through simulated searches to improve their accuracy.
Researchers identified a causal link between serotonin receptors and depression treatment resistance. Higher autoreceptor levels in the brain were associated with reduced stress resilience and decreased response to antidepressant medication.
Researchers found dopamine agonists trigger increased learning from beneficial outcomes and greater prediction error in susceptible individuals, leading to choice bias towards gains. The study provides insight into the brain mechanisms underlying behavioral addictions in Parkinson's disease patients.
Researchers discovered how plants sense temperature changes by unwrapping their DNA; this discovery could lead to more resilient crops and help explain plant responses to climate change. The study used Arabidopsis thaliana and found that H2A.Z histones play a crucial role in temperature sensing.
Researchers find that muscles with inefficient energy-burning mechanisms contribute to obesity, proposing a potential anti-obesity strategy involving muscle-targeted treatments. Regular activity or exercise may increase muscle calorie burn, aiding weight control.
Researchers have identified a leptin-controlled gene that can reverse diabetes in animals and may have similar therapeutic effects in humans. The study found that low levels of leptin can correct insulin resistance and diabetes without causing significant weight loss.
Researchers overcome DNA contamination hurdle to analyze 30,000-year-old human DNA using modern sequencing techniques, providing insights into the evolution and prehistory of our species. The study allows scientists to directly glimpse into the genetic makeup of ancient humans who lived tens of thousands of years ago.
Researchers have found that male and female mosquitoes harmonize with each other to find a compatible mate. The study reveals that different mosquito forms can travel together despite their genetic diversity, which has significant implications for malaria control.
Researchers have identified a molecular scaffold that bridges the two rare inherited disorders, revealing how cells repair damaged DNA. The study suggests that disruption of this interaction leads to similar chromosomal repair defects in both Fanconi anemia and Bloom's syndrome.
A new study shows that locusts rely on visual input from a single eye to control their legs while walking, achieving similar results to vertebrates like humans or cats. This discovery emphasizes how insects can use simpler mechanisms to achieve complex behaviors with fewer neurons.
Researchers found that vitamin C accelerates gene expression changes and promotes efficient iPSC generation. The study suggests a simple way to improve iPSC production, which can be considered a reversal of the aging process at the cellular level.
Researchers found that a synergistic interaction between ?-syn and LRRK2 exacerbates neurodegeneration in Parkinson's disease by disrupting intracellular transport mechanisms. Inhibition of LRRK2 expression may provide a therapeutic strategy to prevent PD-associated neuropathology.
Researchers identified a key molecular switch that drives the onset of Huntington's disease, an incurable neurodegenerative disorder. A subtle change in two amino acids reduced the pathogenic potential of the mutant protein, potentially leading to new treatment strategies.
Researchers have developed a comprehensive understanding of the interaction between H1N1 strains and human cells, revealing new targets for therapy and potential tools to speed vaccine production. The studies also identified key proteins involved in viral replication and host response.
Researchers observed veined octopuses using coconut shells to create a shelter, traveling up to 20 meters while carrying stacked shells beneath their body. The behavior is distinct from hermit crabs and suggests that even marine invertebrates engage in tool use.
Researchers have discovered that tendons initiate bone ridge outgrowth through BMP4 secretion and muscle activity promotes further growth, highlighting the importance of tendon-bone interactions
A study reveals cultural variations in spatial relationships, with nomadic hunter-gatherers remembering body movements differently than Westerners. German children followed a consistent pattern, while Hai||om children adapted their movements based on direction.
Researchers identify specific DNA segment C19MC containing miRNA genes associated with aggressive CNS-PNET tumors. High expression of these miRNAs stimulates growth and prevents normal neural stem cell development.
Researchers found that feeding birds can lead to the evolution of reproductive isolation, resulting in two distinct populations within a single species. This study shows that human activities can influence the evolutionary trajectories of even common bird species.
A new study uses a computer program to simulate movement of hair-like cellular projections, revealing how molecular motors generate cyclical motion. The research opens a new door to understanding motor molecules by simulating the sliding motion between doublets, which causes oscillatory bending of flagella.
Researchers found that good taste and pleasant meals stimulate muscle glucose uptake and decrease blood glucose levels. Orexin is involved in the regulation of muscle glucose metabolism, suggesting a potential role in controlling feeding behavior and blood sugar levels.
Researchers found that mice deficient in a gene required for autophagy develop muscle atrophy and weakening, resembling certain diseases. Maintaining normal autophagy levels is crucial to clear away damaged cells and prevent muscle weakness with age.
A new study reveals how our brains fill in gaps to create continuous sound by suppressing slow brain waves during interruptions. This mechanism enhances our understanding of human hearing and may inspire future devices for people with hearing deficits.