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 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.
Scientists studying Leishmania parasites found that they can adapt quickly to drug resistance by altering gene expression and protein synthesis. This understanding could lead to more effective targeted treatments by removing specific genes or interrupting information flow.
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.
A recent study by Kennesaw State University biologist Whitney Preisser found that a decrease in parasites in U.S. waters may signal potential danger for fish and other wildlife due to changes in water temperature, hinting at an ecological threat impacting all species.
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 used cryo-electron microscopy to visualize the protein synthesis mechanism in Giardia intestinalis, resolving high-resolution structures of six different states of elongation. These findings provide valuable information for screening specific drugs against Giardia and other protozoan parasites.
A new diagnostic test can detect people with dormant Plasmodium vivax parasites, which are difficult to treat due to their ability to remain dormant in the liver for years. The test has the potential to improve malaria control programs and accelerate eradication 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.
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.
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.
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.
A new study reveals that partner-drug resistance facilitates artemisinin resistance in malaria parasites. The research collaboration found a 10-fold increase in partner-drug resistant genotypes led to earlier artemisinin resistance establishment among these parasites, resulting in significant treatment failures globally.
A new study at the University of Helsinki reveals how the actin cytoskeleton in cells is controlled in an evolutionarily distant Leishmania parasite. The findings provide tools to combat leishmaniasis and trypanosomiasis by exploiting structural differences between parasite and human actins.
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 new drug, TB31F, has been shown to block the transmission of malaria parasites by mosquitoes, preventing further malaria cases. The antibody was tested in humans and found safe with no important side effects.
Researchers have discovered a novel strategy for preventing and treating parasites and allergies by harnessing the power of adenosine, a molecule released by injured cells. This breakthrough could lead to the development of vaccines and treatments that target this 'danger signal', which is released when cells are damaged.
A study by Norwegian University of Science and Technology found that parasites infesting farmed salmon have a distinct microbiome that interacts with the fish's microbiome. This interaction can impact the host's health, highlighting the importance of understanding the complex relationships between parasites and their hosts.
Researchers found that different lineages of Cryptosporidium parvum are increasingly exchanging their DNA, which helps the parasite evolve faster and potentially result in more virulent strains. The study suggests that globalization and close contact with animals increase the rate of genetic exchange.
A new digital PCR technique helps identify mutations in malaria parasites that evade detection by rapid tests, reducing false negatives. This allows for more accurate selection of diagnostic tests tailored to specific regions.
Researchers found that flower shape is a key predictor of parasite transmission to bees, with wider, shorter flowers increasing the risk. The study suggests that identifying floral traits and species associated with lower parasite transmission rates could help create pollinator habitats with reduced disease risk.
An international study uncovered a network of gastrointestinal parasite sharing among 17 wild and domestic herbivore species. The researchers found that host evolutionary history and gut type are key factors in determining parasite diversity and similarity.
A new analysis of ancient faeces found at Durrington Walls has uncovered evidence of parasitic worms, suggesting the inhabitants feasted on cattle and fed leftovers to their dogs. The findings indicate that people ate raw or undercooked internal organs from infected animals, resulting in parasite eggs passing through the body.
Researchers have captured the first 3D images of malaria parasites and how anti-malarial compounds like PMIX and PMX work to stop their spread. The findings will enable the design of new compounds that can effectively block Plasmepsins, preventing malaria parasite replication.
Researchers at Heidelberg University discovered that malaria parasites form rotating vortices in infected salivary glands, showcasing emergent behavior and fluctuating size. The study's findings have implications for understanding the physics of collectives and potentially disrupting sporozoite movement.
A study led by Washington University in St. Louis found that nonlethal parasitic infections reduce herbivory rates and trigger trophic cascades impacting plant communities. The research used a mathematical model and global meta-analysis to highlight the ecological consequences of common parasitic infections in wild animals.
Researchers from Australian National University have discovered how malaria parasites evade treatment by transporting drugs to 'safe zones', which can lead to new and longer-lasting treatments. The discovery could also inform cancer treatment development.
Asymptomatic malaria infections have been found to suppress the immune system, preventing it from eradicating parasites from the bloodstream. This new information provides a framework for considering new policies supporting screening and treatment of asymptomatic malaria in endemic areas.
Researchers have discovered that P. malariae, a malaria parasite infecting humans, originated in African apes before evolving to infect people. This breakthrough reveals the evolutionary links between the two species and sheds light on how the parasite adapted to infect humans.
Researchers found that social bee parasites and their host species have similar rates of evolution, contrary to predictions. This unexpected finding suggests that smaller population sizes may not hinder a parasite's ability to adapt and survive.
A team of scientists led by Karine Le Roch has identified two proteins, RAP01 and RAP21, crucial to the malaria parasite's survival. Knocking down these proteins can interrupt protein translation in the mitochondria, leading to the parasite's death.
Researchers found that the ability to detect a parasite and launch an immune response quickly is key to resisting parasites, with implications for understanding human conditions with scar tissue. The study's findings could lead to new treatments and faster recovery times for humans with diseases like cystic fibrosis and liver fibrosis.
A new study by Emory University finds that schistosome transmission can be highest when freshwater snail populations are low. Snails competing for resources may lead to lower infectivity rates, contrary to typical pesticide-based control methods.
Researchers at Weill Cornell Medicine have identified a protein called HDP1 that plays a critical role in activating genes required for the development of male and female stages of the malaria parasite. Without HDP1, parasites are unable to assemble mature gametocytes, leading to their death and inability to infect mosquitoes.
Researchers analyzed a ceramic pot from Sicily and found eggs of whipworm parasites, confirming it was used as a chamber pot. The technique provides a crucial tool for identifying ancient pots with special purposes.
Researchers discovered a new parasite, Txikispora philomaios, which evolved shortly after the common ancestor of animals and fungi, before its multicellularity was developed. The study provides insights into how animal multicellularity developed through cell communication and specialization.
Researchers found parasite densities to be far higher around water sources than elsewhere in the landscape, with cattle and elephants being particularly affected. The study provides ecological insights into how watering holes impact ecosystem health and interactions between species.
Researchers have discovered how dormant Toxoplasma parasites in the brain manipulate host cells to survive. The parasites release proteins called Inhibitor of STAT1 transcription (IST) to suppress immune signals, allowing them to evade detection and cause disease.
Scientists sequenced Plasmodium falciparum genomes to understand malaria parasite populations and track drug resistance biomarkers. The study identified population-specific SNPs that can be used to determine transmission routes and monitor drug resistance.
Researchers have developed a database of parasite-host interactions among ancient ocean animals, shedding light on the evolution of biodiversity and the impact of parasitism on ecosystems. The study suggests that parasites can positively stabilize coastal ecosystems, making them more stable despite individual harm to hosts.
Researchers at the Paul Scherrer Institute have identified a chemical compound, parabulin, that can inhibit the protein tubulin in unicellular parasites, including those that cause malaria and toxoplasmosis. The substance blocks successful cell division by preventing tubulin from forming long, stable protein filaments.
Scientists have developed a technique to sequence individual malaria parasites' genomes, allowing for the detection of new mutations. These mutations are often targeting a gene family controlling transcription in malaria, suggesting potential avenues for developing more effective treatments and vaccines.
A team of researchers led by Christian Rabeling has discovered the origins and evolution of social parasitism in ants. The study reveals that social parasites evolved from an ancestor that lost the ability to establish new colonies independently, and that highly specialized parasites can evolve from less complex social parasite syndromes.
Researchers found that brood parasites have larger eyes than host birds, which may help them avoid detection. Birds with larger eyes relative to their body mass are also less likely to have their nests parasitized.
A Duke University-led study finds that if endangered primates disappear, up to 250 parasites could go extinct, including those with no other suitable hosts. This potential extinction cascade could have significant consequences for biodiversity and human health.
Researchers find hookworms resistant to multiple drugs used to treat them, with high prevalence in racing greyhounds. The study's results highlight the importance of regular deworming and caution against dog parks as potential breeding grounds for drug-resistant parasites.
Researchers have identified global hotspots where bird malaria is spreading rapidly, with significant impacts on bird populations. The study found that climate and forest conditions play a crucial role in predicting infection risks, highlighting the need for conservation efforts to protect bird species from this deadly disease.
A new malaria vaccine has shown unprecedentedly high levels of durable protection in phase 1 trials, potentially reversing the stalled decline of global malaria. The vaccine combines live parasites with antimalarial drugs and has induced sterile hepatic immunity.
A Sanaria vaccine has demonstrated complete protection against a variant malaria parasite in six subjects, with the dosage being only 20% of its original strength. The results, published in Nature, have significant implications for the prevention of malaria in African populations and travelers to Africa.
Researchers identified six antibody characteristics that protect pregnant women from placental malaria infections, which could be used to identify women at risk and develop new therapies. The study found that these antibodies help prevent malaria parasites from binding to placental cells and destroying infected blood cells.
Researchers found that parasitic hairworms in praying mantis infected with parasites are attracted to horizontally polarized light and enter the water. This manipulation of host behavior is a remarkable example of how parasites can alter their hosts' morphology and behavior for their own benefit.
A team of researchers has developed a new imaging technique to visualize the chemical interactions between small animals and their microbes. This allows for a better understanding of how these interactions form and persist in animal tissues. The method, called chemo-histo-tomography, combines chemical imaging with micro-computed X-ray ...
Researchers found that male mosquitoes' ability to harmonically converge affects their offspring's immune response, with males investing more energy in mating effort than immunity. Female mosquitoes are better able to resist parasites and pathogens, but may lose immunity as they age.
A new method for collecting pure malaria parasites from infected mosquitoes could accelerate the development of new, more potent malaria vaccines. The 'mosquito smoothie' innovation enables rapid purification with fewer contaminants, increasing scalability and efficacy.
A study in Uganda reveals that school-aged children with asymptomatic malaria are a significant source of mosquito infections, driving the spread of the disease. Targeting these children for control interventions could help sustain malaria gains and prevent resurgences.
Using lattice light sheet microscopy, researchers captured high-resolution videos of individual malaria parasites invading red blood cells, revealing key steps in the parasite life cycle. The study's findings may lead to new antimalarial therapies by targeting specific components of the parasite, potentially bypassing drug resistance.
Researchers at Martin-Luther-University Halle-Wittenberg have developed a simple method to prepare artemisone, a promising substance against malaria. The new formulation shows improved efficacy in combating harmful parasites, reducing the need for high doses and potential side effects.
Recent studies have demonstrated excellent efficacy of Sanaria's PfSPZ-CVac malaria vaccine, with 77% protection rate in malaria-naive adults. Optimizing immunization timing has increased efficacy to 75%, overcoming negative impacts of blood stage parasites.
A study published in PLOS Medicine reveals that malaria parasites survive and replicate within the spleen of asymptomatic individuals infected with Plasmodium vivax. The research found a substantial biomass of intact asexual-stage malaria parasites accumulated in the spleen, targeting immature red blood cells for invasion.