Articles tagged with Worms
A new study finds that climate change is likely to alter the seasonal profile of disease transmission for parasitic worms, with temperature and humidity playing key roles. The research suggests that infection risk may shift towards northern regions as temperatures rise, while southern regions face more extreme conditions.
Researchers have defined what a premature aging disease is and developed tools to diagnose progeria patients, allowing them to identify new syndromes. The study also identified correlations between progeroid syndromes and other conditions, providing a significant step forward in understanding premature aging.
Research published in ACS Environmental Science & Technology Letters reveals that exposure to pesticide-treated seeds can adversely affect earthworms' health. Earthworms exposed to non-lethal amounts of insecticides and fungicides showed poor weight gain and mitochondrial DNA damage.
The study reveals that non-native earthworms have colonized 97% of soils across North America, with alien occupation higher in the northern part of the continent. This poses a threat to native ecosystems, including forests and grasslands, and highlights the need for better understanding and management of these invaders.
Detailed CT scans reveal the worm-lizard's skull anatomy, including sutured bones and a singular central tooth. Researchers also discovered sexual dimorphism in one species, confirming their findings through powerful jaw muscles.
Scientists at UC Riverside have discovered a tiny worm species that can control crop pests in warm, humid environments. The new Steinernema adamsi nematode is nearly invisible and can kill insects with a low dose, making it a potential alternative to pesticides.
Researchers at NTU Singapore have developed an artificial 'worm gut' that can efficiently break down plastics using microbes found in worms' guts. The artificial system replicates the natural process of worms breaking down plastics and has potential for biotechnological approaches to process plastic waste.
Researchers discovered that a specific phase of neck motor neuron activation in roundworms adjusts their trajectory toward higher salt concentrations. This finding highlights the neural mechanisms underlying navigation and sensory-motor integration, shedding light on how even simple animals adapt to environmental changes.
A UC Riverside research project will focus on changes in the gene network that specify early intestinal precursor cells in nematodes like Pristionchus pacificus. Gene networks describe how genes turn each other on and off, and changes in these networks can lead to diseases such as cancer.
Researchers established a molecular link between specific B12-producing gut bacteria and acetylcholine production in C. elegans, a neurotransmitter important to memory and cognitive function. A diet rich in these bacteria reduced seizure-like behavior in mutant worms by restoring excitatory/inhibitory balance.
A study published in iScience found that DEET can affect meiosis, leading to abnormal chromosome structure and reduced egg cell quality. This raises concerns about the potential reproductive effects of DEET-containing products in humans. Further research is needed to confirm these findings and inform recommendations for balancing disea...
Scientists have discovered fossils of ancient predator worms, Timorebestia, which are estimated to be over 518 million years old. These massive swimming animals were among the largest predators in Early Cambrian times and had a complex food chain.
Researchers discovered a trio of protein segments guiding chromosomal interactions in nematodes, shedding light on the complex process. The study, published in PNAS, provides new insights into meiosis and infertility, with implications for human reproductive health.
A recent study found a significant decline in bioluminescent beetle diversity in the Brazilian savanna over the past three decades. The researchers recorded 51 species, mostly fireflies, click beetles, and glow worms, which have declined sharply due to agricultural expansion and artificial lighting.
Researchers found that treating C. elegans with mitochondrial inhibitors extended their lifespan, improved pharyngeal muscle contraction, reduced lipofuscin content, and decreased energy consumption. The study suggests that these drugs could abrogate aging and extend human lifespan, offering a potential therapeutic approach.
Researchers have unlocked the developmental mechanism of a unique reproductive process in Japanese green syllid worms. The stolon, a detached body part with gametes, swims autonomously and spawns after developing eyes, antennae, and swimming bristles.
A new study examines how a carnivorous fungus senses, traps, and consumes a worm. The research reveals key biological processes involved in the predation process, including increased DNA replication and secretion of proteins that aid in trap development.
A new study found that the progeny of successive generations of old parents had significantly shorter lifespans than those from young parents in both Drosophila melanogaster and Caenorhabditis elegans. The researchers also discovered that switching to only one generation of younger parents improved the healthspan of the offspring.
Researchers at Buck Institute identified a new drug-like molecule that keeps mitochondria healthy via mitophagy, a process that removes and recycles damaged mitochondria. The compound, MIC, extended lifespan in worms and improved mitochondrial function in mouse muscle cells.
Researchers have identified a crucial biological trigger of Huntington's disease, finding that methylation converts an important protein into waste. By targeting this process, they may develop effective therapies for other neurodegenerative diseases.
Researchers discovered a unique protein in bristle worms that distinguishes between sunlight and moonlight. The protein, L-Cry, disassembles under intense light and forms a stable connection in the dark.
Research found that nematodes can sense danger by smell, triggering a neural circuit that induces a response in other tissues, leading to a longer lifespan and less protein aggregation. The study suggests that manipulating perceptions of chemical substances could be a route to intervention in neurodegenerative diseases.
Researchers discovered that parasites like horsehair worms use stolen genes to control host behavior. They found over 3,000 genes expressed more in manipulated hosts, suggesting the parasite produces its own proteins for manipulating nervous systems.
Researchers at Kyoto University have found three new species of animals living together in harmony with worms in dead coral rocks. The discovery highlights the importance of community structure and biodiversity patterns in cryptofauna, suggesting that symbiotic relationships are omnipresent in the ocean.
Buck Institute researchers discover that advanced glycation end products (AGEs) in processed foods increase hunger and test willpower, contributing to overeating and obesity. By understanding the biochemical signaling pathway behind AGEs, scientists may develop strategies to limit their accumulation and promote healthy eating.
A new study reveals that changing nutrient use can reprogram immune cells, potentially treating cancer and infections. By blocking choline metabolism, researchers found a 'tremendous reprogramming of the immune profile' in mice, suggesting this knowledge could lead to novel therapies.
Researchers develop natural-based, low-carbon building materials by mimicking the composite adhesive secreted by sandcastle worms, which binds grains together. These materials exhibit good mechanical performance and can be constructed from various grains using oppositely charged bio-polymer adhesives.
A recent study has discovered over 300 species of annelid worms in the Clarion-Clipperton Zone, a critical area for deep-sea mining. The findings highlight the need for better biodiversity knowledge to inform environmental management and policy decisions.
In C. elegans, a specialized anti-aggregation mechanism is triggered in response to core protein quality control failure, promoting tissue-specific resilience to age-dependent protein aggregation. This mechanism relies on pathogen response factors and lysosomal mediated degradation.
A new mechanism of protein quality control has been identified in C. elegans pharyngeal muscles, which acts as a 'safety net' to prevent toxic protein build-up and restore function to the organ. This tissue-specific protection may help explain why some brain areas are more resistant to protein aggregation.
A team of researchers has discovered that the worm C. elegans uses a unique system to regulate its development, with a quartet of molecules working in concert to control gene expression. This process shares similarities with human circadian clocks, and understanding how it operates could provide insights into developmental biology.
Tubificine worms can form entangled blobs that behave as a single organism to adapt to extreme environments and migrate more efficiently. Researchers successfully simulated collective movements of worm blobs in confined terrain, facilitating design of future swarm robotic systems.
A new study by Goethe University Frankfurt found that effluents from treated wastewater treatment plants alter invertebrate communities in Hesse's waters. Pollution-tolerant taxa like worms and crustaceans increase, while sensitive species like stonefly and caddisfly larvae decline.
Researchers found that nematode worm larvae can leap through the air and attach themselves to passing insects when exposed to certain electric fields. They observed dauer larvae consistently moving towards the lid of a petri dish, some reaching it in a fraction of a second.
A study published in PLOS ONE has discovered parasite eggs in a 200-million-year-old coprolite from Thailand, providing insight into the life of an ancient aquatic predator. The discovery is significant, as it is one of only a few known examples of nematode eggs preserved within the coprolites of Mesozoic animals.
Targeting tiny amounts of hydrogen sulfide to specific areas of cells in adult worms improved health and activity as they aged, according to a University of Exeter study. The research found that H2S improved the integrity of mitochondria, kept muscles active, and extended lifespan.
Researchers have discovered a new way to combat fatal fungal infections by blocking the production of fatty acids, a major component of fats. The breakthrough could lead to more effective treatments against species-resistant fungi.
Researchers discovered a protective immune feature lacking in people chronically infected with intestinal worms, leading to potential human vaccines and treatments. The study used animal models and found that blocking the T follicular helper response impaired worm clearance and promoted chronic infection.
A new study led by UCL researchers found that Caenorhabditis elegans' lifespan is limited by its reproductive self-destruction. The finding raises questions about the validity of insights from this model organism for human ageing advances.
Two species of hairworms are missing genes responsible for producing cilia, a feature present in all other known animals. This loss likely occurred early in the evolution of the group and may impact their parasitic behavior, but its exact effects remain unclear.
In a new study, Salk Institute scientists discovered that dopamine regulates anxious worm behavior in the presence of nipping predators. The findings illuminate how this dopamine-regulated brain pathway may be related to anxiety and could provide insight into human conditions like PTSD.
A genome-wide screen in C. elegans reveals potential targets to delay motor aging, including VPS-34 inhibition. Partial inhibition improves neurotransmission and muscle integrity, ameliorating motor aging in worms and mice.
The study reveals five distinct brain types, each suited for its purpose, from a jellyfish's diffuse neural network to the human brain's reflective capabilities. Researchers suggest that autonomous machines can learn from coordination in bees, rapid thinking in birds, and single-mindedness in worms.
A robotic system, WormPicker, autonomously detects and manipulates Caenorhabditis elegans for genetic research, increasing productivity for human researchers. The system accelerates studies in diverse areas of C. elegans biology.
Researchers from IMBA identify a family of virus-like transposons called Mavericks that facilitate horizontal gene transfer (HGT) between reproductively isolated worm species. The study reveals the role of Mavericks in overcoming the species barrier, with potential applications in pathogen control and genomic innovation.
Researchers discovered that a diet rich in the bacteria Lactobacillus reuteri can maintain associative learning ability in older nematodes. This finding suggests potential ways to use diet to reduce age-related cognitive decline in other animals, including humans.
Researchers discovered that microscopic Caenorhabditis elegans worms can use electric fields to jump across Petri plates or onto insects, allowing them to attach themselves. This behavior is made possible by the natural electric charge of pollinators like bumblebees and hummingbirds.
The Clarion-Clipperton Zone is home to an estimated 5,578 different species, with 88-92% of them entirely new to science. Researchers have discovered a variety of unique species, including sea cucumbers, nematodes, and sponges.
A new study from Duke University identifies 1,500 genes essential for invasive cell behavior in C. elegans worms. The researchers created a 'parts list' of these genes and proteins, which may help identify effective ways to stop cancer's spread.
A new study found that selective serotonin reuptake inhibitors (SSRIs) improved the quality of aging females' egg cells in roundworms by reducing embryonic death and chromosomal abnormalities. Replication in fruit flies confirmed the findings, suggesting a shared signaling system between species.
Tiny California blackworms tangle themselves to perform biological functions, but can untangle in mere milliseconds. Researchers have discovered the mathematics behind this process, revealing how helical gaits and topological principles enable the worms' superpower.
A new study on nematode worms reveals that they react to cannabinoids in the same way as humans, increasing hunger for favorite foods and decreasing hunger for non-favored foods. The discovery emphasizes the commonality of cannabinoid effects across species.
A new study reveals a protein in the nervous system regulates collagen expression, potentially extending human lifespan as temperatures rise. Mutant worms with increased collagen production lived longer and looked younger than wild-type worms under warm temperatures.
A recent study published in the journal Immunity has shed light on the immune response to parasitic worm infection, revealing a critical role for T cells and macrophages. The research team identified specific signaling molecules that control the development of tissue-resident macrophages, which are essential for eliminating the infection.
A study found that regular exercise increases mitochondrial fusion, benefiting muscle cells and maintaining physical fitness even in old age. Daily sessions of exercise throughout life delay the accumulation of dysfunctional mitochondria and decline in physical fitness.
Researchers at Nagoya University discovered three new species of bioluminescent polycirrus worms emitting blue-violet light, with names inspired by yokai from Japanese folklore. The findings aim to deepen understanding of bioluminescence mechanisms and potentially lead to new life sciences technologies.
A team of researchers developed a dynamical model that explains how animals learn over time, contradicting previous theories. The multi-dimensional model shows that learned associations are not mediated solely by strength but by multiple nearly independent pathways.
Researchers at the University of Virginia have identified a promising approach to delay aging by detoxifying glycerol and glyceraldehyde, harmful by-products of fat. By activating an enzyme called AMAR, they found that microscopic worms lived longer and healthier lives, and similar effects were seen in other lab models.
A new study uses DNA-based identification to determine the identity of larvae found in 21 commercially available mezcals. The results suggest a single moth species, Comadia redtenbacheri, is being consumed, contrary to historical estimates of 63 species.
Researchers have discovered that mezcal gusanos de maguey are actually the caterpillars of agave redworm moths (Comadia redtenbacheri), not a single type of insect larva. This finding has significant implications for the sustainability of agave production and the potential impact on wild populations of these caterpillars.