Articles tagged with Parasites
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.
Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.
Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.
Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
Researchers found that CD4+ T cells initiate fat wasting, while CD8+ T cells induce muscle wasting, which surprisingly helps the mice fight infection and survive. The study sheds light on the complex relationship between immune cells and wasting responses.
Molecular biologists Ruslan Afasizhev and Inna Afasizheva have discovered the architecture of molecular machines involved in RNA editing in a disease-causing parasite. This understanding could potentially help treat African sleeping sickness, which is usually fatal and has limited treatment options.
A recent public engagement project uses street theatre to educate audiences on African Sleeping Sickness, a neglected tropical disease prevalent in rural Africa. The performance aims to enhance trust in scientists and public health professionals among affected communities.
Scientists at Tokyo Institute of Technology identified ApSigma, a nuclear-encoded apicoplast RNA polymerase σ subunit that coordinates gene expression with the life cycle of Plasmodium falciparum and host circadian rhythm. Melatonin is shown to increase apicoplast transcription and expression of the apSig gene.
A Virginia Tech study found that hellbender fathers are more likely to eat their eggs in deforested areas, leading to a drastic increase in filial cannibalism. The research suggests that protecting and re-establishing forest cover around streams is crucial for the species' survival.
Researchers at UCalgary have found that Leishmania parasites exploit immune cells by targeting receptors to gain access and resist elimination, leading to stalled apoptosis and hindered vaccination efforts.
The study found that drug-resistant Leishmania parasites have distinct protein production profiles compared to sensitive parasites, suggesting a global reprogramming of protein synthesis. This pre-emptive adaptation enables the parasite to quickly respond to the presence of the drug and survive when it is absent.
Researchers have identified anti-malarial properties in cancer drugs, offering a potential solution to the growing crisis of drug-resistant malaria. The study found that certain protein kinase inhibitors exhibited strong anti-malarial effects, highlighting a new approach to accelerating drug discovery.
A new study found that wild and feral cats in high-human population density areas release more Toxoplasma gondii parasites. Temperature fluctuations also played a role in parasite shedding from domestic and wild cats. The findings suggest managing feral cat populations could reduce toxoplasmosis transmission risk.
Researchers at UNIGE have identified a new type of molecular sensor that enables the malaria parasite to infect human cells or mosquitoes at just the right moment. By understanding how this sensor works, scientists can potentially scramble its signals to disorientate the parasite and block its multiplication and transmission.
Researchers detected Plasmodium falciparum, the deadliest form of malaria, in mummified tissues from Medici family members. The parasite was identified through microscopic and molecular analyses, revealing characteristic ring-shaped structures and Maurer's clefts.
A study by Florida Atlantic University and Duke University reveals that the malaria parasite's biological clock is 'in sync' with its human host's circadian clock. The researchers discovered a 'coupling' mechanism between the parasite and its host, which could lead to new treatments for this deadly disease.
Researchers found that malaria parasites synchronize their gene expression with the host's internal clock, repeating every 24 hours. The study reveals a potential new target for anti-malarial drugs by 'jet-lagging' the parasites' clocks.
Researchers at Osaka University developed a highly reproducible genetic screen to investigate Toxoplasma's survival within hosts. The study identified IFN-γ-dependent and -independent virulence factors that promote parasite fitness, providing potential targets for treatment and prevention of toxoplasmosis.
A new study by Flinders University research team led by Professor Justine Smith has found that women are more likely to experience recurrent cases of toxoplasmosis eye disease. The study also revealed significant differences in the type and characteristics of the disease between men and women.
A new study has identified a second key gene, AAT1, involved in malaria's resistance to the drug chloroquine. The finding, published in Nature Microbiology, has implications for the ongoing battle against malaria.
Researchers at IOCB Prague have determined the first cryo-EM structures of a surface receptor of Trypanosoma brucei gambiense in complex with human complement factor C3. This discovery sheds light on how the parasite avoids clearance from the human bloodstream and survives within the immune system.
A parasite identified as Philaster apodigitiformis has been found responsible for the massive die-off of long-spined sea urchins in the Caribbean Sea. The loss of these vital herbivores threatens coral reef health and balance, with devastating consequences for marine ecosystems.
The concept of nature's chefs offers a new perspective on species interactions, highlighting the diversity of food-making and preparing species across the tree of life. This interdisciplinary approach aims to inform how people think about food across various disciplines.
Researchers identified a single-celled organism called a scuticociliate as the cause of a massive die-off event among long-spined sea urchins in the Caribbean and along Florida's east coast. The team used genomic techniques and lab experiments to confirm the source of the die-off, replicating what was observed in the ocean.
A new study found that sunflower pollen's spiny structure reduces infection of a common bee parasite by 81-94% and increases the production of queen bumblebees. The research also suggests that other flowers in the sunflower family may have similar disease-fighting powers.
A rare strain of Toxoplasma has been found in California sea otters, killing them with severe inflammation and potentially threatening other marine life. The COUG strain was first detected in Canadian mountain lions, and its impact on humans and other animals is unknown.
A recent study has identified a rare strain of Toxoplasma gondii, COUG, in sea otters that caused fatal steatitis and toxoplasmosis. The strain is virulent and can rapidly kill healthy adult otters, posing a health threat to other marine wildlife and humans.
A recent study found that malaria control programs in Amazonian Peru reduced the disease by 78% but saw a rebound when funding was cut, driven by climate change. Climate change has exacerbated malaria transmission, with rising temperatures and intense rainfalls contributing to the resurgence of the mosquito-borne disease.
A recent study published in The Science of Nature found that parasites and body condition are crucial factors in determining the vulnerability of fish to angling. The research revealed that fish with high body condition and parasites, as well as those with low body condition but no parasites, were less likely to be caught by anglers.
Researchers at CZ Biohub SF and UCSF create high-resolution map of human immune response to P. falciparum, revealing why durable malaria vaccines have been hard to come by. The study uses sophisticated method to analyze antibodies' binding patterns to parasite proteins, offering insight into how malaria evades the immune system.
A study found that high winds increased Campylobacter prevalence in outdoor chicken farms, with 26% of individual chickens infected. Farmers are advised to consider windbreaks and monitor weather patterns to reduce exposure.
A study found that malaria parasites invest more in sexual reproduction and less in asexual replication during low-transmission environments. Low LPC levels in human blood plasma are associated with increased gametocyte production and transmission.
A new study published in The Lancet found that an existing drug, sulfadoxine-pyrimethamine, protects pregnant women from sexually transmitted and reproductive tract infections. Researchers tested this drug alongside a promising new treatment, dihydroartemisinin-piperaquine, which showed unique ability to prevent malaria.
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.
Researchers at Rockefeller University have found queen-like mutants among social parasite ants, which can infiltrate and take over host colonies. These unique ants exhibit intermediate traits between worker and queen behavior, allowing them to thrive in the colony while avoiding dangers associated with leaving their nest.
New research on malaria-infected bonobos shows that the infection harms them, too, with symptoms including fever and increased mortality risk. The study also finds that bonobos have a protective variant of an immune gene similar to one found in humans, suggesting a selective advantage for those individuals.
Research from the University of Cambridge and Cardiff University found that damselfish scare off cleaner fish customers, leading to fewer species receiving vital cleaning treatment. This disruption could contribute to the breakdown of delicate ecosystems supported by coral reefs.
Researchers analyzed data on European travellers arriving from Africa between 2015 and 2019, finding malaria as the most common arthropod-borne disease. The study highlights the importance of using travellers' health data to complement local surveillance systems in Africa.
A team of researchers has identified a molecular switch that regulates autophagy in plants, bridging two quality control pathways. The study reveals that this regulatory mechanism is conserved in eukaryotes and essential for preventing cells from 'eating' healthy cellular components.
A study by researchers from Hosei University and Kyoto University found that the red velvet mite's bright red pigment is primarily composed of astaxanthin, a powerful antioxidant. This high concentration of antioxidants helps protect the mites from harsh environments caused by UV radiation and heat.
Researchers have identified two new feather mite species associated with the endangered Laysan albatross in Japan. The study provides valuable insights into the ecological dynamics of these parasites and their impact on the bird population. The findings highlight the importance of conservation efforts to protect this species.
Researchers have identified a new class of potent antimalarial compounds that target the parasite's sexual phase, preventing it from infecting mosquitoes and subsequently humans. The compounds inhibit the parasitic protein Pfs16, forming the strongest bond with the drug.
Researchers found Toxoplasma gondii infection causing abortions and neonatal deaths in bighorn sheep. The parasite is believed to be spread by domestic and wild cats, raising concerns for conservation efforts.
A study of preserved fish specimens reveals a 140-year decline in parasite populations due to warming oceans. Parasites with multiple host species declined severely, threatening ecosystems and top apex predators. The study highlights the vulnerability of parasites to climate change and inspires further research.
A recent study found that medical professionals in Illinois were relatively knowledgeable about diagnosis and treatment of Lyme disease, but lacked information on other tick-borne diseases. The researchers are now designing a continuing education course to educate practitioners on current ranges of ticks and risk of disease.
A new review paper aims to educate medical professionals on diagnosing and treating rat lungworm disease, which is expected to spread globally due to climate change. Early diagnosis and treatment are critical in reducing the risk of complications such as long-term disability.
Researchers identified a genetic variant linked to digestive disturbances in patients with Chagas megaesophagus, a disorder characterized by esophageal dilation and loss of motility. The study suggests that increased interferon-gamma production leads to mitochondrial dysfunction, contributing to the development of the disease.
Scientists at the University of York have identified an enzyme that makes Leishmania infantum parasite resistant to miltefosine, a medication used to treat visceral leishmaniasis in Brazil. The discovery opens up potential for developing a blood test to predict patient outcome and tailor treatment to individual patients.
A three-year study in Mozambique shows that parasite density and detectability in primigravid women decline as disease transmission decreases, despite stable antibody levels. This suggests non-immunological factors control infections in pregnant women.
Researchers created an atlas of the malaria infection by Plasmodium parasites in the liver, revealing differences in infected cell localization and immune response. The study's findings hold promise for developing treatments targeting the asymptomatic liver stage of the disease.
Researchers have identified a parasitic protein unique to hypnozoites, which could serve as a potential biomarker of latent malaria vivax infections. The findings lay the groundwork for eliminating the disease by detecting its presence.
A monoclonal antibody was found to be up to 88.2% effective at preventing malaria infection in healthy, non-pregnant adults during a six-month malaria season in Mali, Africa. The study suggests that this antibody could complement other measures to protect vulnerable groups from seasonal malaria.
A study led by Stockholm University researchers discovers a protein that Toxoplasma uses to reprogram the immune system, allowing it to spread efficiently. The parasite infects immune cells and tricks them into thinking they are other types of cells, changing their gene expression and behavior.
Researchers found that sapanisertib can kill the malaria parasite at several stages during its life cycle, including in the liver and red blood cells. The study's findings offer new hope against a disease that kills over half a million people annually.
Researchers engineered mosquitoes to produce compounds that stunt malaria parasite growth, reducing the risk of disease transmission. The technique could be combined with gene drive technology to drastically cut malaria transmission in real-world settings.
A cercarial dermatitis outbreak occurred in Chana district, South Thailand, affecting rice farmers, due to ruminant parasites like Schistosoma indicum. The study identified two snail species as intermediate hosts for flatworms causing the disease.
A new antiparasitic compound has shown 100% efficacy in eliminating T. cruzi, the parasite that causes Chagas disease, in mice and non-human primates. The treatment could provide a safer alternative to current medications with significant side effects and variable efficacy.
Threespine stickleback fish evolved resistance to freshwater tapeworms by forming scar tissue around them, which prevents the worms from growing. However, this defense has a significant fitness cost for female sticklebacks, as they are 80% less likely to successfully breed due to the accumulated scarring.
Researchers genetically mapped one of the oldest human parasites, the whipworm, using stool samples from Viking latrines. The study reveals a delicate relationship between humans and the parasite, which can make us healthier or ill, and provides new knowledge on its development and prehistoric dispersal.
Research reveals that 32 species of animals, including prawns, crabs, and lizards, can act as carriers of the rat lungworm parasite, which can cause serious illness and death. The study aims to raise awareness about paratenic hosts and prevent infection by avoiding eating raw or infected animals.
A study of medieval Cambridge's Augustinian friary and local cemetery found that friars were almost twice as likely to be infected by intestinal parasites. The researchers suggest that the high infection rates among friars may have been due to their practice of manuring vegetable gardens with human faeces.
A Texas A&M AgriLife Research project investigates the ages-long interaction between parasitic lice and mammal species, including humans. The researchers aim to answer why various louse species parasitize specific hosts and what makes these species good hosts.
A nationwide survey in El Salvador identified areas with high Chagas disease transmission, highlighting the need for targeted vector control measures. The study suggests that continued efforts are necessary to combat this neglected tropical disease.
Researchers have developed an algorithm to identify the protozoan Trypanosoma cruzi in photographs of blood samples taken with a mobile phone camera. The low-cost method can be reproduced and adapted for other purposes that depend on images, such as analyzing feces, skin, or colposcopies.