Articles tagged with Animal Cells
Quat-containing disinfectants have raised concerns over potential toxicity, with links to fertility and developmental problems found in animal and cell experiments. However, industry experts argue that skin irritation is the biggest concern, and typical exposures in people are unlikely to pose significant health risks.
A Rutgers study suggests that companies commercializing cell-based seafood products should use the term 'cell-based' on product labels to meet FDA regulations. The study found that consumers view this name as equally nutritious and desirable as conventional seafood products, signaling a healthy, sustainable alternative.
Researchers have identified nearly 3,000 genes that enable phylloxera to colonize and feed on grape vines by creating nutrient-enhanced tumors. This discovery could lead to the development of pest-resistant rootstocks, reducing the financial burden on grape growers.
Biologists at the University of Bayreuth have discovered a unique form of rapid regeneration in zebrafish neurons. Mauthner cells, responsible for escape behavior, can regenerate their axons within a week after injury. This finding disproves the widely accepted view that these cells are unable to regenerate.
Researchers have successfully 3D printed coral-inspired structures that can grow dense populations of microscopic algae, up to 100 times more densely than natural corals. This breakthrough could lead to the development of efficient bioreactors for producing algae-based biofuels and help restore coral reefs.
A new data analysis tool has been developed to study the formation of zebrafish stripes, enabling scientists to objectively test ideas about how patterns are formed. The algorithm uses topological data analysis to quantify attributes of shapes and patterns, providing a more objective approach to understanding developmental processes.
Researchers at UChicago study birdsong to understand brain cell properties and their role in learning, revealing surprising similarities with human stuttering. The study uses zebra finch neurons to show that changes in intrinsic cell properties are closely tied to song patterns and stuttering behavior.
Biologists from Bayreuth investigate the role of Mauthner cells in fish and amphibian species, revealing a strong hierarchical dependence on these cells for essential functions. The researchers discovered that Mauthner cells remain functional without their cell bodies, contradicting widespread assumptions about nervous system hierarchies.
Researchers discovered that the inferior colliculus in mice integrates sound and movement information, allowing for rapid and accurate responses to external sounds. This integration helps prevent movement-related sounds from interfering with hearing, promoting survival.
Viral mutations can cause influenza viruses to mutate so that they can better latch onto and infect bird cells, making the immune system less effective. Cell-based vaccines offer an alternative using canine kidney cells, which are more similar to humans, increasing their effectiveness.
Scientists in China successfully induced granulosa cells to transform into functional oocytes in mice, which were then fertilized to produce healthy offspring. The chemical reprogramming method appears to offer a promising approach for preserving fertility and endocrine function.
Researchers used a new microscopic 'fishing' technique to snag thousands of proteins key to the cell skeleton. The team identified hundreds of individual proteins with yet-to-be-defined roles, including a protein called SLK that forges the link between RhoA and ERM.
A new international project will utilize pluripotent stem cells to preserve bird genetic resources. The project, led by Kazan Federal University, will analyze genomes and study genetic mechanisms of suspended embryogenesis in birds.
A study by Max Delbrück Center researchers explains that avian influenza A viruses are unable to transform infected human cells into effective virus factories due to a lack of the matrix protein M1. The virus requires this protein to export its genetic material from the cell nucleus, which is necessary for building new viruses.
Researchers have discovered a new species of choanoflagellates that can act together to change shape and swim. The microbes use light-sensing proteins to coordinate their movements, suggesting this ability pre-dates the first animals.
Researchers develop tools to watch neural circuit formation directly in living animals, revealing new window into brain development. The study uses light-sheet microscopy to track neurons' movement, activity, and function, shedding light on how coordinated network activity emerges and gives rise to early behaviors.
Biologists have directly observed and recorded branching microtubule nucleation in living fruit fly cells, a mechanism crucial to cell division. The technique enabled visualization of individual microtubules using TIRF microscopy, revealing that microtubule tips trigger the process.
A Dartmouth study reveals that the rat brain uses center-bearing, center-distance cells, and head-direction cells to process spatial information and provide a sense of direction. The postrhinal cortex is thought to be responsible for this process, similar to the human parahippocampal cortex.
Researchers found that smaller silver nanowire diameters reduce toxicity to cells, with wires adopting crumpled forms within endolysosomes for containment. This could lead to increased transparency and device performance without compromising safety.
Researchers warn that framing cultured meat as a high-tech innovation can lead to negative attitudes and reduced consumer demand. The study found that those who encountered cultured meat through this frame were less likely to consider it safe, healthy, or environmentally friendly.
Zebrafish have been found to have a type of pigment cell that can transform into another cell type during normal development, challenging the long-held dogma that once a cell has completed its development, it stays that way. This discovery sheds light on how cells differentiate and may hold implications for regenerative medicine.
Researchers have developed SABER, a highly programmable method that significantly enhances the sensitivity and customization capabilities of FISH analysis. It enables parallel detection of many targets with high sensitivity and tunability at low costs.
Researchers at Stanford University have created a timeline of cells undergoing meiotic transition in corn, revealing two sharp jumps in gene activity. This discovery provides new insights into the process and may help plant breeders create crops with desirable traits.
Columbia engineers and neuroscientists use SCAPE microscope to create 3D videos of individual nerve cells moving, stretching, and switching on inside fruit fly larvae. The study reveals how nerve cells called proprioceptive neurons work together to help the body sense its position in space.
Single-cell RNA-seq technology reveals which genes are active in early embryo cells, offering a snapshot of cellular behavior. Researchers use molecular trackers to monitor individual cells' fate during development, shedding light on organ formation and tissue regeneration.
Researchers developed novel quantum dots for enhanced mRNA FISH, achieving accurate RNA counting and 3D cell imaging. The new probe overcomes FISH limitations with compact quantum dots, providing stable and efficient labeling.
Scientists create a yeast mutant with deficient mitochondria and an E. coli bacterium with the necessary enzymes to form a symbiotic relationship, allowing the chimera to persist for over 40 generations. This model provides insight into the origins of mitochondrial endosymbiosis and can be used to explore further mechanisms.
The clean meat industry is struggling to scale up production and gain consumer acceptance, with challenges including product naming and labeling. Despite these hurdles, start-ups aim to capture a small percentage of the $1-trillion-per-year combined meat market.
Researchers at Stanford University have found a unique way that animal cells stay intact in the marine organism Trichoplax adhaerens (Tplax), using fast contractions in its epithelial layers. This discovery could inform our understanding of complex animals and the creation of advanced materials.
A membrane transporter has been identified as crucial for the uptake of steroid hormones into cells, challenging decades-old assumptions about their biological effects. This breakthrough could lead to new treatments for diseases like cancer and immune disorders.
Researchers are using laser marking systems and light sheet microscopy to track individual cells in zebrafish development, aiming to create a complete cellular blueprint. The project has the potential to revolutionize regenerative biology by precisely defining cell roles in complex organisms.
Researchers at UMN Medical School found that senolytic drugs can reverse physical dysfunction caused by aging cells, extending lifespan in animal models. A high-fat diet or being old enhances this dysfunction.
A new mathematical model explains the formation of zebrafish stripes by highlighting the crucial role of a single pigment cell type. The model shows that iridophores lead the process, providing redundancies to ensure reliable stripe formation even when cellular processes go wrong.
Researchers at UTMB have developed a method to bioengineer human lungs in a lab, without any medical complications. The study used a support scaffold made from lung proteins and successfully transplanted them into adult pigs, with the animals surviving for several months post-transplant.
Scientists have discovered over 100 different cell types in the sea anemone, including complex neuronal diversity. This finding adds to discussions on cell evolution and development, providing insights into the fundamental rules governing cell function across animals.
A team of Rockefeller scientists has discovered the molecular signals that direct cell differentiation in human embryos, shedding light on the earliest stages of development. The findings have implications for regenerative medicine and could lead to new treatments for diseases such as cancer and diabetes.
Scientists have identified a molecule found on human cells and some animal cells that could be a useful target for drugs against chikungunya virus infection. Mxra8, a key to the entry of chikungunya virus into host cells, was identified using CRISPR-Cas9.
A new pig virus, porcine deltacoronavirus, has been found to be transmitted to humans and other species through cellular receptors. Researchers have confirmed the virus's ability to bind to cells in pigs and other animals, raising concerns about its potential to cause disease.
The absence of Sp7 transcription factor halts tooth development in mid-stride, preventing the maturation of cells responsible for creating dentin and enamel. This discovery adds to our understanding of craniofacial abnormalities, which are common birth defects in humans.
Researchers discovered that SOX10 and SOX5 transcription factors interact differently in zebrafish and medaka fish to develop pigment cells. The study suggests that these proteins may work together to form a novel pigment cell type, the leucophore, which could offer clues about how new cell types evolve.
Researchers have developed a new method to culture cells from rainbow trout guts, enabling the assessment of chemical toxicity without live animals. This breakthrough could significantly reduce the number of fish required in toxicology studies, aligning with 3Rs principles.
Researchers developed a light-activated genetic switch that can turn genes on and off in mammalian cells using red and far-red light. The switch relies on two insights: creating an electron transfer system and placing the molecular synthesis in mitochondria, allowing for precise gene control.
A LSU Health New Orleans study found that DHA in fish oil 'preconditions' photoreceptor and RPE cells to survive future insults, reducing the risk of retinal degeneration. The researchers also discovered that daily omega-3 supplementation may provide an opportunity for halting debilitating eye diseases.
Researchers have found that the scales of sharks and skates share a common origin with teeth, and that ancient fishes had multiple layers of armor. Meanwhile, studies on backbone formation reveal a shared evolutionary history between jawed vertebrates, including humans.
Researchers found that shark skin's dermal denticles develop from neural crest cells, just like teeth, supporting the theory that these primitive scales were carried into jawed vertebrates to form teeth. This discovery suggests a deep evolutionary relationship between ancient fish scales and vertebrate teeth.
Scientists have discovered a new type of cell in the eye of deep-sea fish that enables them to see in twilight conditions. This finding opens up new avenues of research into how animals adapt to extreme environments and challenges existing theories about photoreceptor cells.
Researchers employed MultiMAP technology to monitor nerve cells' activity in zebrafish brains, linking each neuron to its specific cell type. This method revealed distinct neuronal circuits not previously suspected to be associated with alertness, shedding light on the forces driving this essential brain state.
Researchers at IST Austria have identified a positive feedback loop between cell-cell contact formation and cell fate specification in zebrafish embryos. This loop, triggered by long-lasting contacts, leads to the specification of head mesoderm cells, while short-lasting contacts result in endoderm cells.
Researchers used a mathematical model to determine how cone cells in zebrafish arrange themselves into specific patterns. Small defects in the patterns lead to only one of two possible arrangements, emerging from differences in adhesion force between cells.
Researchers have confirmed that cartilaginous fish fin and hypobranchial muscles develop via a similar mechanism to limb muscles in land-dwelling vertebrates and bony fish. Conserved genes, including Pax3 and Myod, were also identified.
Researchers have created a comprehensive atlas of gene activity in every cell type of an animal, using Caenorhabditis elegans as a model organism. The study reveals selective activation of genetic code in different cell types, accounting for the formation of specialized cells and body parts.
Research reveals 'bodysnatchers' of the ocean, mixotrophs that enslave prey to acquire photosynthetic capability, have a significant impact on the food-web. These single-celled organisms support fisheries while others can be highly toxic.
Researchers discovered a unique repair mechanism in zebrafish spinal discs that protects fluid-filled cells from mechanical stress and promotes regeneration. The study suggests that this mechanism, triggered by the release of nucleotides, may be present in humans at early stages but is lost over time.
A new study published in Biological Psychiatry found that chandelier cells, a type of inhibitory nerve cell, are unaltered in schizophrenia patients, challenging prior findings of GABA deficits. The researchers suspect a developmental origin for the abnormality, which could have implications for treating brain disorders.
Italian scientists introduce NanoTracer, a simplified assay combining DNA barcoding with nanotechnology to authenticate food with the naked eye. The test detects substitutes and adulterants in products like European perch and saffron powder.
A team of scientists led by the University of Exeter aims to understand how individual characteristics and social relationships influence collective movements in birds. The project seeks to decipher the mechanisms behind flocking behavior, with potential implications for crowd safety, crop management, and robotics.
Researchers found that DNA amount controls initial steroid hormone production, signaling start of metamorphosis. This internal timer determines juvenile development and makes metamorphosis irreversible.
Researchers found that artemisinins transform glucagon-producing alpha cells into insulin-producing cells by activating GABA receptors, producing insulin. The study uses FDA-approved malaria drugs and has been shown to increase beta cell mass and improve blood sugar homeostasis in animal models.
A new color-coding tool enables scientists to track live blood stem cells over time, revealing how blood disorders and cancers like leukemia arise. The tool has many implications for hematology and cancer medicine, including understanding clonal diversity and regulating its development.
Researchers developed MEMOIR to record cellular histories in genomes, allowing them to analyze cell relationships, communication patterns, and influential events. The technique aids in understanding tissue and animal development, as well as the abnormal development of diseased tissues like tumors.