Articles tagged with Malaria
The largest genetic study of mosquitoes reveals that insecticide resistance is spreading rapidly across Africa, posing a significant threat to malaria control. The study found that wild mosquitoes are genetically diverse and can evolve resistance quickly, making it challenging to control the disease.
Researchers at the German Cancer Research Center found that natural infection with malaria induces a strong immune response, producing antibodies that protect mice from infection. The study's findings will help develop more effective and specific vaccines against the disease.
A mathematical model published in PLOS Medicine estimates that reducing the PMI budget by 44% would result in 67 million more malaria cases over four years. Maintaining funding would prevent 162 million cases and save 692,589 lives between 2017 and 2020.
A recent study by a University of Pennsylvania School found that wild bonobos are susceptible to various Plasmodium malaria parasites, including a previously unknown species. This discovery informs our understanding of the life cycle and transmission of malaria in humans.
Scientists provide detailed picture of how human antibodies bind to malaria parasite's circumsporozoite protein, a key target for vaccine development. The study could lead to enhanced efficacy and duration of protection against malaria.
A recent study has identified a fatty molecule in human blood that controls the malaria parasite's decision to switch from replicating in humans to transmitting to mosquitoes. This discovery improves understanding of a critical stage in the Plasmodium life cycle and may lead to new strategies for controlling and treating malaria.
Researchers have discovered a unique 'breathprint' of people with malaria, allowing for accurate diagnosis using a breath test. The analysis found that infected patients exhale a compound attracting mosquitoes, accelerating disease spread.
Portuguese researchers have identified a crucial defence mechanism used by the malaria parasite to survive inside its host's liver cells. The protein UIS3 binds to LC3, forming a protective shield against autophagy, allowing the parasite to evade the host's cellular defence mechanism.
The GHIT Fund has announced significant investments in new treatments for malaria, including an antimalarial drug candidate DSM265 and a diagnostic tool for detecting dormant Plasmodium vivax parasites. These breakthroughs aim to combat the growing threat of artemisinin resistance and eliminate the 'hidden reservoir' of vivax malaria.
A Cochrane review found that mefloquine is at least as effective as other options for preventing malaria, but its psychological side effects outpace those of alternatives. Common symptoms include sleeplessness, abnormal dreams, anxiety, and depression.
A recent study found that populations of Plasmodium vivax in the Americas are as genetically diverse as those in Southeast Asia, contradicting previous assumptions. The research suggests that P. vivax may have originated from Africa, Europe, and Asia, and its genetic diversity was retained upon arrival in the Americas.
Researchers have identified two proteases essential for the malaria parasite's survival and dissemination, as well as a molecule capable of inhibiting them. This discovery could lead to the development of drugs blocking not only the parasite's development in humans but also its transmission to mosquitoes.
Researchers have identified two essential proteins, plasmepsin IX and X, which play critical roles in the life cycle of malaria parasites. Targeting these proteins could lead to the development of effective anti-malaria drugs.
A year-long trial suggests that hydroxyurea treatment is safe and effective for Ugandan children with sickle cell anemia, contrary to concerns about increased malaria risk. The study found no correlation between hydroxyurea treatment and the rate or severity of malaria infection.
Researchers successfully built a gene drive to reduce female fertility in malaria-spreading mosquitoes, but mutations soon arose that blocked the spread of new genes. This study documents the emergence of resistance and will help improve future gene drives.
Researchers found that targeting the CTLA-4 molecule at the right time during malaria infection allows mice to quickly clear the disease and develop lasting immunity. The study suggests a new approach for combating malaria, potentially involving immunotherapy drugs or small molecules.
Researchers at Johns Hopkins Bloomberg School of Public Health discover two new strategies to combat malaria: genetically modified bacteria that spread rapidly in mosquito populations and boost the immune system of malaria-carrying mosquitoes. These innovative approaches aim to reduce the need for continuous malaria control measures, p...
Researchers found that metabolism directly impacts malaria development and severity. A study by Instituto de Medicina Molecular revealed that dietary shifts can lead to a 90% reduction in parasite load.
Researchers aim to identify parasite genes underlying resistance, monitor spread, and design treatment strategies. They will use innovative genetic crosses in a 'humanized' mouse strain to better understand drug resistance evolution.
Researchers discovered that carbohydrates on malaria parasites play a critical role in infecting human and mosquito hosts. The study suggests steps for improving the malaria vaccine, which has been only partially effective in preventing the disease.
According to the Global Burden of Disease study, viral hepatitis causes over 1.34 million deaths worldwide, exceeding chronic infectious diseases like HIV/AIDS, malaria, and tuberculosis.
Researchers use NASA satellite data to predict malaria outbreaks in the Amazon Rainforest by tracking mosquito breeding grounds and human movement. The tool combines land surface modeling, vegetation maps, and deforestation data to identify areas at high risk of outbreaks.
The Lancet's analysis shows that while some countries have made significant improvements, much progress is needed to meet the health-related SDG targets by 2030. Over 60% of countries are projected to meet targets on under-5 mortality, neonatal mortality, maternal mortality, and malaria.
Researchers at Tulane University have developed a new drug, AQ-13, effective against non-severe cases of malaria. The clinical trial results match the effectiveness of widely used treatment regimens and hold promise for combating drug-resistant Plasmodium falciparum strains.
Scientists have successfully produced artemisinin, a key malaria treatment, in large quantities using genetically engineered moss. The process is simple, efficient, and cost-effective, offering a promising solution to the global shortage of artemisinin.
A new class of compounds, hexahydroquinolines (HHQs), shows promise in preventing Plasmodium falciparum parasite transmission from infected hosts to mosquitoes. HHQs also enhance the effectiveness of existing antimalarial treatments, making it harder for drug-resistant parasites to emerge.
Researchers confirm zoonotic transmission of Plasmodium simium in 28 human cases in the Atlantic Forest region of southern Brazil, where malaria was previously thought to be eliminated. The study highlights the need for further investigation into the natural history and biology of the parasites in their non-human primate hosts.
Researchers from Florida Atlantic University are developing a Placenta-on-a-Chip device that simulates malaria in the womb to develop new treatments. The device uses embedded microsensors to monitor vascular cell well-being and nutrient circulation, enabling close examination of malaria's effects on mother and fetus.
A new rapid diagnostic test has been shown to effectively distinguish between severe and uncomplicated malaria in children in Sub-Saharan Africa. The test was tested on 2,678 children with fever, resulting in a sensitivity and specificity of 97.6% for detecting severe malaria.
Researchers have developed several innovations to stop mosquito-borne diseases like malaria by exploiting their behavior and biology, including attracting and killing them before they suck blood or reproduce. These breakthroughs use pheromones and other attractants to manipulate mosquitoes without harming the environment.
Researchers at the University of British Columbia developed a novel method to assess malaria progression using RBC deformability, which can indicate hemin-induced oxidative stress. This simple microfluidic device can determine RBC rigidity in minutes, providing a valuable tool for disease diagnosis and treatment.
Researchers used X-ray fluorescence microscopy and soft X-ray tomography to study malaria parasites in liquid nitrogen, gaining insights into their ravaging mode of operation. The findings suggest a potential mechanism controlling the speed of hemoglobin digestion and crystallization, which could be targeted with new medication.
A new study published in the American Journal of Tropical Medicine and Hygiene found that rapid diagnostic tests for malaria are reducing the need for antimalarial medications but may also lead to an increase in antibiotic prescriptions. The research analyzed over 500,000 patient visits across malaria-endemic regions and revealed that ...
Researchers at the University of Zurich discovered that malaria was already widespread on Sardinia in the Roman period, contradicting previous assumptions. Genetic adaptations, such as thalassemias, played a crucial role in protecting against malaria, with some individuals leading healthy lives while being immune to infections.
A study found that global malaria funding is declining despite its importance in eliminating the disease worldwide. The decrease in external funding, combined with increasing government financing, may lead to malaria resurgence if sustainable financing solutions are not implemented.
A recent study analyzing over half of the malaria parasite's genes found that two thirds are essential for survival, opening up new avenues for antimalarial drug development. The researchers developed a method to decipher gene function by switching off and counting the growth of genetically modified parasites.
Researchers at The Francis Crick Institute and The London School of Hygiene & Tropical Medicine identified a key protein involved in malaria parasite escape. Disrupting this protein reduces the efficiency of parasite escape, slowing down infection rate.
Researchers have adapted a diagnostic test for malaria to predict post-treatment anemia risk with 89% sensitivity and 73% specificity. The BinaxNOW malaria kit measures HRP2 remnants on red blood cells, offering a potential alternative to mandatory monitoring for high-risk patients.
A study found that mice eating 30% fewer calories had a lower parasite load and lived longer. The parasite adapts by slowing its replication in response to host's nutritional status.
A new study reveals that malaria parasites actively adapt to a host's nutritional status, with mice eating 30% fewer calories showing significantly lower parasite loads. The parasite's rate of replication depends on the host's calorie intake, potentially dictating the outcome of a malaria infection.
A new study found that removing the flowers of invasive shrub Prosopis juliflora from mosquito-prone areas can decrease local mosquito vector populations by nearly 60%. The removal also reduced the number of older female mosquitoes, which are known to transmit malaria parasites.
A randomized study found that schools providing prevention education, insecticide-treated nets, and antimalarial treatment can dramatically cut malaria infection and reduce the risk of anemia among schoolchildren. The benefits lasted until the end of the school year.
A new study has found significant inequalities in malaria research funding in sub-Saharan Africa, with countries like Chad and Central African Republic receiving no investment. The study reveals that Tanzania and Kenya received the most research funding, while Nigeria received the most non-research funding.
Three distinct parasite strains show varying ability to infect human liver cells, with some causing more severe symptoms. Future antimalarial vaccine trials should use multiple strains to accurately predict efficacy.
The UW-led Malaria Evolution in South Asia research center is one of 10 NIH-supported International Centers of Excellence for Malaria Research. Researchers are studying the genetic diversity of malaria parasites in India, which shows more variation than elsewhere globally, making standard laboratory tests less accurate.
A recent study by Emory University highlights the importance of insecticide-resistance monitoring in controlling the spread of Zika and other mosquito-borne diseases. The research found that applying insecticides like deltamethrin in areas with high resistance can be ineffective, emphasizing the need for targeted control measures.
Exposure to just 10 minutes of light at night suppresses biting behavior and manipulates flight in Anopheles gambiae mosquitoes. The study suggests pulses of light could be an effective tool to complement established control methods for reducing disease transmission.
A new genetic technique developed by Upeksha Rathnapala and colleagues at the University of Melbourne could enhance research into potential drug targets for malaria treatment. By using a novel approach involving fluorescent markers, scientists can identify metabolic processes essential for Plasmodium development in host animals.
A new study reveals that increasing temperatures are eroding the natural buffer against malaria transmission in Ethiopia's highlands. As temperatures rise above 18°C and 15°C, conditions become favorable for the disease to spread, posing a significant threat to the country's population.
A study published in PLOS Medicine found that funding from the US President's Malaria Initiative (PMI) in sub-Saharan African countries was associated with a significant reduction in under-five child mortality. The analysis, which controlled for other factors, showed an average risk reduction of 16% in PMI-funded countries.
A new study has identified human factors that could be targeted by elimination interventions for 'monkey malaria', a complex and potentially life-threatening parasite. Adult male farmers in the Sabah region are more likely to contract Plasmodium knowlesi malaria due to their outdoor work on plantations.
Researchers developed a model that uses satellite data to predict malaria outbreaks with one-month lead time, allowing for targeted resource allocation and public health responses.
Long-term malaria infections can cause chronic inflammation in the bone marrow, leading to increased bone resorption and substantial bone loss. Oral supplementation with alfacalcidol may reverse this side effect, suggesting a potential treatment strategy for improving bone health in malaria-infected individuals.
Researchers at LSTM and partners have developed a molecule, E209, effective against parasites with artemisinin resistance. The fully synthetic molecule is designed to be fast-acting and slowly eliminated, offering hope as a single-dose cure.
A new study of malaria medicine quality in sub-Saharan African countries found that up to 42% of the private-sector market is made up of non-quality-assured (QA) treatments, which can impact patient health and safety. The study's findings highlight the need for policy responses to address the growing market for QA medicines.
Dr. Terrie Taylor is using a $8.5 million federal grant to study why previous malaria prevention methods have been unsuccessful and how progress can be made in Malawi. Her team will focus on identifying 'reservoirs of infection' - people who are infected but not sick, and understanding mosquito behavior to develop effective treatments.
Researchers at NIAID developed a new malaria vaccine that protects monkeys against the deadly Plasmodium falciparum parasite. The vaccine elicited neutralizing antibodies in monkeys and showed improved efficacy compared to previous AMA1 vaccines.
A study by Lehigh University sociologist Dr. Kelly Austin finds a link between deforestation and increasing malaria rates across developing nations due to rural population growth, agricultural specialization, and increased standing water and sunlight favoring Anopheles mosquito species.
A study identified a genetic rearrangement of red blood cell glycophorin receptors that confers a 40% reduced risk from severe malaria. The hybrid GYPB-A Dantu gene is found in some people from East Africa, but not in West African populations.
Researchers identified a gene variant DUP4 that protects against severe malaria by altering receptors used by the malarial parasite. This variant was found to reduce the risk of severe malaria by 40% in certain African populations, particularly those of East African descent.