Articles tagged with Chemical Resistance
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A new study at Stellenbosch University found that blocking the enzymes involved in glycolysis could cut off the malaria parasite's primary energy source and kill it. This approach has shown promise for developing new malaria drugs, particularly against resistant parasites.
A study published in the Journal of Medical Entomology found a gene mutation in bed bugs that may contribute to their resistance to insecticides. The researchers, led by Warren Booth, discovered the mutation in 134 unique populations of bed bugs collected from North America between 2008-22.
Researchers at MD Anderson Cancer Center have discovered that adding copper-loaded agents to radiotherapy can overcome radioresistance in preclinical models of thoracic cancer. A novel blood-based biomarker, OSMR, has also been identified in patients with acute myeloid leukemia (AML), which shows prognostic potential and can help ident...
Researchers have developed a new approach to overcome treatment resistance in estrogen receptor-positive (ER+) breast cancer. Dual aromatase-steroid sulfatase inhibitors (DASIs) show promise in effectively blocking both enzymes involved in oestrogen production, potentially reducing tumour growth.
A research team at Tokyo University of Science has identified two new tetranins in spider mite saliva that reduce reproduction and increase defense responses in plants. The findings have potential for organic farming techniques and more resilient crops, contributing to sustainable agriculture and enhanced food safety.
A new type of antibody that stimulates the immune system to target cancer cells has shown promise in reducing tumor growth in treatment-resistant breast and ovarian cancers. The study found that the antibody, IgE, uniquely stimulated otherwise inactive immune cells to directly target HER2-expressing cancer cells.
University of Missouri researchers developed a solution to improve solid-state battery performance by understanding the root cause of issues. They used 4D STEM to examine atomic structures without disassembling batteries, ultimately determining the interphase layer was the culprit.
Researchers at Curtin University have developed a new technique to make glass water-repellent, creating a durable and environmentally friendly surface that can improve safety in vehicles and buildings. The process uses ultrasound to trigger a chemical reaction, forming a stable organic layer on the glass surface.
A new study published in the Journal of Antimicrobial Chemotherapy has found that lenacapavir is effective in controlling HIV in a population of patients in Uganda. The study sequenced the capsid proteins from 546 Ugandan patients and found little natural resistance to the drug.
Researchers uncover Achilles' heel of TMZ chemotherapy resistance, revealing critical insights into mechanisms behind glioblastoma's inactivation of DNA repair pathways. The study sheds light on potential mechanisms of aging and offers new avenues for developing more effective therapies against this devastating cancer.
A study from the University of Notre Dame found nine out of 22 watch bands contained high levels of perfluorohexanoic acid (PFHxA), a type of PFAS. Elevated PFAS levels were more prevalent in higher-priced watchbands, posing concerns for dermal absorption and potential health risks.
Researchers at MD Anderson Cancer Center have made significant breakthroughs in smoking cessation treatments, with a study finding that varenicline plus counseling is the most effective treatment for individuals with major depressive disorder. Additionally, a new radiotherapy technique demonstrates effectiveness in treating metastatic ...
A research team led by Hidemasa Bono mapped the genomes of susceptible and resistant bed bug strains, revealing new insights into the development of pyrethroid resistance. The study identified 729 resistance-specific mutations in protein-coding genes related to DNA damage response, cell cycle regulation, and lysosome functions.
Researchers are working to develop a curative treatment for multiple myeloma by combining treatments, overcoming resistance, and tailoring therapy to individual patients. The study found promising results using bispecific antibodies in combination with other treatments.
Researchers explore adapting agricultural techniques, such as integrated pest management, to treat cancer. By managing cancer as a chronic condition, adaptive therapy aims to overcome treatment resistance and improve patient outcomes.
A $3.96 million grant will support the development of a monitoring device and data-processing algorithm to guide combination therapy design against multidrug-resistant bacteria. The goal is to overcome bacterial defenses and combat the emergence of resistance.
Researchers from the Sylvester Comprehensive Cancer Center presented their findings on the association between smoking intensity, genetic mutations, and disease progression in myelodysplastic syndromes. Dr. Stephen D. Nimer received the 2024 ASH Mentor Award for his impact on hematology trainees.
Researchers have discovered a new strategy to overcome docetaxel resistance in advanced prostate cancer patients, which may improve the efficacy of chemotherapy and prolong overall survival. The approach involves inhibiting cholesterol and lipid biosynthesis, reinducing sensitivity to the drug docetaxel.
Researchers developed a sustainable, high-performance material suitable for packaging and biomedical devices by exploiting the mechanical properties of cellulose nanofibres. Adding small peptides improves their mechanical performance and water-resistance.
A new study reveals widespread resistance of Pseudomonas aeruginosa to commonly used cleaning agents, including quaternary ammonium compounds. The researchers identify biocides that work well against the pathogen, highlighting the need for revised sanitation protocols in hospitals and homes.
Researchers at Ohio State University have developed a novel method to strengthen polyvinyl chloride (PVC) products by permanently attaching chemical additives using electricity. This new approach can prevent microplastic degradation and improve the material's durability, making it more suitable for various applications.
A team of researchers has designed a new antimalarial drug called MED6-189, which is effective against both drug-sensitive and drug-resistant strains of human malaria parasites. The compound works by targeting the apicoplast organelle and vesicular trafficking pathways, making it a promising lead in the fight against malaria.
A study published in the journal Insects found that hemp leaf extract containing cannabidiol (CBD) is effective in killing mosquito larvae, including those resistant to typical insecticides. The research suggests CBD's potential as a safe and sustainable alternative for controlling mosquito populations.
A team of researchers discovered a class of materials that mimic the behavior of axons by spontaneously amplifying electrical pulses. These materials can harness internal instabilities to create spiking behavior and amplify signals, potentially leading to more efficient computing and artificial intelligence.
A study by Virginia Tech undergraduate Megan O'Hara found that surface properties significantly influence bacterial twitching motility, allowing for rapid colonization and infection. By manipulating surface properties with detergents like bile salts, researchers can alter the functionality of type IV pili, a critical virulence factor.
Researchers identified a gene module regulating walnut resistance to anthracnose, a widespread fungal disease. The JrPHL8-JrWRKY4-JrSTH2L module enhances disease defense by boosting the expression of key genes, providing new avenues for breeding resistant walnut varieties and promoting sustainable cultivation practices.
Research from the University of Wisconsin-Madison and the University of Illinois Urbana-Champaign reveals that some giant ragweed populations in Wisconsin have evolved resistance to critical post-emergence herbicides. This development limits chemical options for non-GMO soybean growers, potentially forcing them to switch to GMO soybean...
A new research project aims to create a highly effective and selective biological herbicide targeting Palmer amaranth. The researchers will use synthetic biology techniques to develop RNA molecules known as Ribozymes that can influence specific gene expression, eliminating the weed through a specific infection.
Researchers developed a genomic-metagenomic approach to predict pest resistance in sweetpotatoes, identifying key genes involved in defense mechanisms. The study found correlations between insect pests and microbial communities within the plant's metagenome, revealing new strategies for breeding resistant varieties.
Researchers from the University of Sheffield have developed a new form of immunotherapy using nanoparticles that delays the onset of resistance to hormone therapy in prostate cancer. This innovative approach stimulates immune cells called T cells to attack cancer cells, marking a significant breakthrough in treating prostate cancer.
A new study reveals that snap bean germplasm has a master switch controlling multiple stress tolerance genes, offering a potential solution to waterhemp and other herbicides. The genomic region responsible for this tolerance acts like an on-and-off switch, with higher expression of certain enzymes and antioxidants in tolerant plants.
Researchers designed a molecule, MTX-531, that impairs signaling drivers of cancer therapy resistance. In mouse models, MTX-531 led to tumor regressions in multiple head and neck cancers, showing a favorable toxicity profile.
Researchers at the University of Illinois Chicago have developed a new dual-action antibiotic that targets two different cellular targets, making it nearly impossible for bacteria to evolve resistance. The antibiotic works by disrupting protein production and DNA structure, rendering random mutations ineffective.
A team of researchers led by Professor Beom-Kyeong Park has made a breakthrough in enhancing solid oxide fuel cell efficiency with a rapid PrOx coating method. The study demonstrated significant enhancements in SOFC electrode performance, reducing polarization resistance and boosting peak power density.
Researchers have developed MXene/CNT Janus films with high electrical conductivity, robust mechanical strength, and excellent thermal camouflage performance. These films demonstrate exceptional electromagnetic shielding capabilities and can detect infrared radiation, making them ideal for harsh environment applications.
Researchers from Leiden University discuss targeting ABC transporters in pancreatic ductal carcinoma (PDAC), a cancer with poor survival rates. The authors highlight the potential of inhibiting ABC transporters to overcome chemoresistance and suggest developing stratification protocols to identify patients most likely to benefit.
Researchers at Pohang University of Science and Technology have developed a gel electrolyte-based battery that significantly reduces gas generation during charging and discharging processes. The new technology maintains its capacity even after 200 cycles, demonstrating enhanced safety and durability.
Researchers have identified a potent and unique way to kill drug-resistant bacteria using a repurposed compound called LEI-800. The compound targets the bacterial enzyme DNA gyrase, which is essential for bacterial growth and has not been targeted by existing antibiotics.
A study shows that ultraviolet-absorbing film effectively controls high-resistant thrips in greenhouses, leading to a 96.67% control rate and increased crop yields. The UVa-F film works by exploiting the thrips' visual system, reducing the need for chemical pesticides.
Researchers at Northwestern University discovered an attenuated virus that can help eliminate cancer in mice and prevent future tumor development. The therapy works by raising 'red flags' on tumors to alert immune cells to attack them.
Researchers have identified a new type of resistance gene in plants called Ptr, which makes rice immune to certain strains of the fungus Magnaporthe oryzae. This finding invalidates previous studies on another gene named Pi-ta and opens up new avenues for understanding natural resistance to disease.
Researchers optimized the release pattern of Telenomus podisi, a parasitoid wasp that neutralizes the Brown stink bug, for effective biological control in soybean crops. By analyzing the dispersal range and releasing points, they found that intervals of 30 m can assure sufficient control of stink bugs.
Researchers discuss therapeutic opportunities for hypermutated urothelial carcinomas that are resistant to immunotherapy, including the potential of targeted therapies. High TMB is associated with defects in mismatch repair proteins and can lead to increased sensitivity to cancer treatments.
A study in southern Mozambique found that sulfadoxine-pyrimethamine (SP) remains effective for preventing malaria infections in pregnant women, even in areas with high drug resistance. The study showed increased clearance of P. falciparum infections and lower antibodies resulting from parasite colonisation.
Researchers use carbon nanotubes to prevent cracking in multilayered composites, improving resistance by up to 60%. This innovation could lead to safer and more durable aircraft with advanced composite materials.
Researchers have developed novel antibiotics based on protein building blocks with fluorous lipid chains to fight resistant pathogens. The compounds were shown to be effective against methicillin-resistant Staphylococcus aureus (MRSA) in mouse models, killing bacteria without developing resistance.
MD Anderson researchers presented studies on combination therapies for AML and lung cancer, tumor microbiomes in immunity, and improved HPV screening. Genetic markers predict extended survival with KRAS inhibitors and may identify patients who benefit from novel combinations.
Researchers identified two disease-resistant germplasm resources and analyzed physical and chemical defense mechanisms contributing to resistance. The study highlighted the importance of trichome density, wax content, VOCs, and terpenoids in disease resistance.
Researchers from the University of Southern Denmark have identified specific groups of cells driving resistance to chemotherapy in TNBC, offering new biomarkers and alternative treatment options. The studies shed light on the mechanisms behind chemoresistance and its epigenetic control.
Researchers at the University of Toronto have found that two enzymes, APOBEC3C and APOBEC3D, promote resistance to chemotherapy drug gemcitabine in pancreatic cancer cells. Removing these enzymes can kill cancer cells by stymieing DNA repair.
Researchers from Tokyo University of Science found that rose essential oil increases the transcript levels of PIR1 and PIN2, key plant defense genes, in tomato plants. The study also showed that REO reduces leaf damage caused by pests and attracts beneficial predators to protect against herbivores.
Researchers highlight difficulties in targeting metastatic tumors and propose two- and three-drug combinations to achieve effective tumor control. They also emphasize the need for simultaneous blocking of primary driving oncogene, evolving resistance mechanism, and secondary survival pathway.
Researchers have discovered a new way to target chemotherapy-resistant ovarian cancer cells by depriving them of cholesterol, leading to significant tumor growth reduction. The nanoparticles starve the cells of cholesterol, triggering cell death through oxidation of lipids in the cell membrane.
Rumbaugh's lab aims to understand the effects of dispersing bacteria from a biofilm on their susceptibility to antibiotics and on the host. They will use enzymes as tools to break up biofilms, allowing researchers to better comprehend the relationship between bacterial dispersal and infection outcomes.
Researchers at Germans Trias i Pujol Research Institute have identified a combination of drugs that could change the treatment of patients with prostate cancer resistant to docetaxel. The study proposes a new treatment based on a combination of kinase inhibitors in patients who inevitably stop responding to docetaxel.
A team of researchers found that diffuse anaplasia (DA) subtype of Wilms tumor grows despite high DNA damage and TP53 mutation, leading to resistance to chemotherapy. The study suggests that DA histology emerges through accumulating DNA damage and CNAs, creating selection pressure for TP53 mutations.
A recent study has identified a promising solution to combat resistance to protein degraders, which are a novel approach in drug discovery. The researchers found that the drug RBS-10 selectively removes resistant cells by targeting the enzyme NQO1, which is overexpressed in these cells.
Researchers at the University of Miami Miller School of Medicine have discovered that glioblastoma cells can mimic healthy neurons, evading drugs and immune systems. They identified key enzymes and protein modifications, including BRAF, which shows promise as a potential therapy target.
Researchers at St. Jude Children's Research Hospital have designed a new version of the drug spectinomycin that overcomes efflux, a key mechanism driving antibiotic resistance in Mab infections. The modified compound, eAmSPCs, shows enhanced antimicrobial efficacy and works well with various classes of antibiotics.
Researchers found a significant decline in glyphosate's ability to control seven major weed species, with most showing signs of adaptation within two to three years. The study suggests that using a pre-emergence herbicide can significantly improve control and reduce variability of glyphosate over time.