A new strategy for fighting cancer aims to make its genes get lost in translation, silencing oncogenes by targeting weak messenger RNAs. The researchers discovered a small molecule that effectively inhibits the translation of these weak mRNAs, leading to the decline of cancer-promoting proteins.
Researchers found that human circadian clocks couple to local sun time, with chronotypes becoming later in densely populated areas. City dwellers experience decreased influence of local sun time relative to rural residents.
Two studies in Neuron shed significant light on how the brain processes numerical information and how it develops in children. The research found that the parietal cortex activates during perception of both abstract quantities and numerical symbols, suggesting an important role for this region in processing quantitative information.
Researchers found that blood vessels associated with brain tumors create a microenvironment that sustains cancer stem cells. Disrupting this microenvironment with antiangiogenic drugs reduces CSCs and arrests tumor growth.
Researchers discover a mutant gene that affects the body's natural wake-up time, shedding light on the genetic basis of sleep in humans. The study provides new insights into the circadian clock's regulation and may lead to therapies for conditions like jet lag and shift work sleep disorder.
By analyzing lobster fishing operations in American and Canadian waters, researchers found that reducing fishing efforts can substantially decrease entanglement risks. Implementing a 6-month lobster fishing season and decreasing trap numbers could greatly benefit the critically endangered species while providing benefits to fishermen.
A genetic 'switch' drives the formation of a poorly understood type of muscle in mice. These mice exhibit increased endurance and can sustain longer periods of physical activity.
During fasting, brain cells responsible for stimulating appetite make sure you stay hungry. The researchers revealed a link between active thyroid hormone in the brain and increases in an 'uncoupling' protein (UCP2) that boosts power-generating mitochondria, allowing the brain's hunger center to remain active.
Researchers found that prolonged exposure to one odorant improves differentiation among related odors and reveals increased response in brain areas. The study suggests that humans naturally learn to identify thousands of different smells through experience-dependent neural plasticity.
Researchers found that new neurons generated in response to epilepsy have reduced excitability and increased inhibitory connectivity, potentially alleviating the disorder. These findings suggest that therapies aimed at inducing neurogenesis could prove effective.
Researchers found that moths can detect and respond to bat calls, even when others cannot. The yellow underwing moth's ear adjusts its sensitivity in response to changing sound frequencies, allowing it to stay 'tuned' for up to several minutes after the call stops.
Researchers identified a male-specific gene, PlestMID, in an oogamous green algae species that evolved from its isogamous ancestor's dominant sex. This breakthrough provides insights into the evolution of male-female dichotomy and the origin of distinct sperm and egg cells.
A recent study reveals that a rare batfish species is crucial in promoting the return to health of disturbed coral reefs overgrown with algae. Researchers found that only two of 27 herbivorous fish species had a significant impact on reef recovery, with parrotfishes and surgeonfishes unable to reverse algal blooms.
Researchers found that mice with severely damaged brains showed substantial mending within weeks after losing specific genes. The repair was attributed to neural stem cell 'escapees' that retained or restored the gene activity, enabling regenerative potential.
Researchers pinpointed paroxysmal extreme pain disorder (PEPD) to specific porelike sodium channels in peripheral nerve cells, highlighting the role of such channel disorders in inflammatory pain. Mutations in SCN9A gene were found to be responsible for at least two-thirds of PEPD cases.
Researchers found that cocaine affects dopamine and glutamate receptors, interfering with normal activation of glutamate receptors. This interaction between D2R and NR2B subunits is critical for mediating cocaine's effect on motor responses.
Researchers found that Akt1 is specifically required for lactating mice to synthesize sufficient milk. The protein kinase plays a critical role in glucose metabolism, which may have implications for cancer therapy. Studies suggest that the metabolic demands of lactation bear similarities to those of tumor cells.
A new study found that a low-protein diet can normalize bone formation and bone mass in mice with genetic disorders, while a high-protein diet may reverse skeletal syndromes. The researchers identified ATF4 as a key mediator of neurofibromin signaling, which plays a crucial role in bone development.
Researchers found that reef shark abundance on reefs open to fishing is about ten times lower than on unfished reefs. High reef shark abundance was only apparent on the most strictly enforced no-take zones, suggesting moderate poaching can derail conservation efforts.
A group of researchers has successfully identified algae of the genus known to represent coral symbionts and demonstrated that isolated algae can establish symbioses with new corals. This finding potentially bolsters future efforts to protect and rehabilitate coral reefs.
Research on great tit birds in urban environments found that city songs are shorter, sung faster, and have a higher frequency to overcome noise, while forest songs remain intact. This study supports the acoustic-adaptation hypothesis, suggesting that environmental pressures shape animal communication sounds.
Researchers found that the trigger loop acts like a trap door to close off the active center and form extensive interactions with NTP, ensuring accuracy. This mechanism couples NTP recognition and catalysis, explaining the high fidelity of transcription.
Researchers found that mutations in LRRK2 protein stunt neuron growth and branching, leading to dopamine-producing neuron loss and disease progression. The study provides a useful animal model for studying PD and discovering new treatments.
Researchers discover master cardiac stem cells capable of producing all three major tissues of the mammalian heart. The findings challenge traditional understanding of heart development and may hold promise for cardiac stem cell therapies.
Researchers have demonstrated a central role for zinc in modulating signaling among neurons, shedding light on its presence in free ion pools. The findings show that manipulating synaptic zinc levels can affect neuronal action, highlighting the complexity of potential therapeutic interventions.
Male crayfish exhibit pseudo-copulation behavior, mirroring normal sexual copulation, to reduce aggression and secure social dominance. This mutual behavior is crucial for the survival of subordinate males, highlighting its evolutionary significance in invertebrates.
Scientists used a magic trick to investigate how magicians manipulate our perception by exploiting social cues and expectations. They found that observers perceived the ball leaving the magician's hand due to cues from the magician's head direction, but not when it was no longer present in the illusion.
Researchers discovered a new diamondback moth variety that can thrive on hyperaccumulator plants guarded by toxic levels of selenium. The moth's adaptation allows it to accumulate selenium like the plant, rendering its defense ineffective. This finding suggests a potential
Male chimpanzees show a preference for mating with older females, a stark contrast to human behavior where younger females are often preferred. This finding suggests that long-term pair bonding and menopause may have evolved in the human lineage after diverging from chimpanzees.
ABT-737, a BH3 mimetic, targets Bcl-2 proteins to induce apoptosis in cancer cells. The treatment has shown effectiveness against acute myeloid leukemia (AML) cells and can be combined with MCL-1 inhibitors for improved results.
A study identifies human Tyk2 deficiency and links it to multiple cytokine signals critical for human immune responses. Unlike mouse models, which showed partial impairment in IFN signaling, humans with functional Tyk2 exhibited severe defects in multiple cytokine signals, including IL-12 and IFN-α.
Studies using fMRI reveal that the hippocampus integrates perceptual strands to form coherent memories. The intraparietal sulcus plays a crucial role in binding multiple features of stimuli into a common representation, essential for episodic memory formation.
Researchers found that subliminal words can produce a priming effect, where subjects respond faster on tasks related to either the visual or auditory word. TMS applied to specific brain areas disrupted this priming effect, demonstrating top-down processing of subliminal information.
A malaria drug, chloroquine, was found to improve symptoms of metabolic syndrome in mice by reducing atherosclerosis, lowering blood pressure, and improving blood sugar tolerance. The drug works by activating a particular stress pathway that mediates susceptibility to the syndrome.
Researchers found that aged mice experiencing weekly light-cycle shifts had significantly higher death rates than those on a normal daylight schedule. The study suggests that disruption of circadian rhythms can impact well-being and physiology in older animals.
A study on pigeon homing found that birds flying in pairs take more efficient routes home than alone, suggesting navigational benefits. The researchers discovered that compromise and leadership emerge from simple forces acting on the pigeons' behavior, resolving conflicts between individual preferences.
Researchers found that zebrafish have progenitor cells and an epicardium that can restore wounded heart muscle. The study's findings suggest that these mechanisms could be utilized for therapies, potentially improving the regenerative capacity of mammalian hearts.
Researchers found that diverse cooperators evolved to use different nutrient resources, reducing competition and increasing biofilm success. This diversity leads to smaller cheats populations and larger biofilm groups.
Researchers have identified a critical gene in the circadian time-keeping system that enables animals to predict mealtime. The Period 2 gene plays a key role in the brain's ability to anticipate food availability, but not its effect on physiological coordination outside the central nervous system.
Researchers compared two microbial killing mechanisms: chemical toxins and viral parasites. Chemical toxins are superior for resident defense against invaders, while viral parasites facilitate faster invasion when carriers are rare.
Researchers found that three sunflower species arose from hybridization have massive proliferation of genetic elements, contradicting theory for diploid species. This discovery provides insight into the activation and proliferation of transposable elements in plants, particularly under abiotic stress conditions.
Researchers discovered that cells in young fruit flies use simpler DNA repair mechanisms compared to older flies. The findings suggest that these simpler methods may contribute to genetic damage and aging, but also leave behind residual damage from earlier years.
Research reveals a metabolic defect underlying Huntington's disease, causing temperature dysregulation in brain regions like the striatum. The findings may explain symptoms like weight loss and could lead to new therapeutic avenues.
Researchers found that otoferlin is essential for a late step of neurotransmitter release and may act as the major calcium sensor triggering membrane fusion at the inner hair cell ribbon synapse. The study suggests cochlear implants could benefit individuals with otoferlin-linked deafness.
Researchers identified a key mechanism behind Rett Syndrome by pinpointing the S421 site on the MeCP2 protein responsible for its normal function. This specificity explains why mutations affecting that site target brain development, leading to delays in motor skills and speech loss.
Researchers found that dopamine deficiency in Parkinson's causes loss of muscle control and paralysis due to disruption of coordinated activity in a particular neural circuitry. A new treatment pathway aims to restore this dopamine-regulated circuitry coordination.
Researchers found that a mammary pheromone in mother's milk facilitates newborns' ability to quickly associate environmental odors with the opportunity to nurse. This learning is efficient from birth and promotes essential skills like suckling instincts.
The study reveals that the brain uses non-auditory sensory cues to control speech, with subjects learning to compensate for robotic interference even when speech sounds normal.
Researchers found archerfish automatically tune water force based on prey size, with strategy resistant to learning. The technique is also metabolically costly, with fish adjusting water mass for efficient force application.
Researchers have discovered that animals with altered cytoskeletal structures are less susceptible to alcohol's intoxicating effects. A team of Italian researchers found mice lacking a gene that influences the cellular skeleton became less sensitive to ethanol exposure, leading to increased drinking and reduced neurological damage.