Articles tagged with Chemical Resistance
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Researchers at Purdue University developed a method to use pesticides in a precise way to stop genetic resistance from arising. Using multiple pesticides together can delay resistance for decades, potentially reducing costs and social impacts.
A study has confirmed that VirtualPhenotype can accurately predict HIV therapy response using genetic resistance information, outperforming expert interpretation. This standardized approach offers a reliable alternative for optimal treatment decision-making.
A 2-year study found that day care centers incubate and spread antibiotic-resistant respiratory tract bacteria, including Streptococcus pneumoniae. The study suggests that day care centers are ideal environments for the development of such resistance due to high rates of respiratory infections and antibiotic use.
Researchers at Rockefeller University have identified two genes responsible for producing branched muropeptides, essential for pneumococcus survival in the presence of penicillin. Inactivating these genes restores penicillin's potency, opening the door to new drugs that target this newly discovered mechanism.
Researchers found that resistant mice have higher levels of antioxidant enzymes, which help protect against pancreatic beta-cell destruction. The study suggests a single gene may be responsible for the genetic resistance, and identifying it could lead to therapies to boost natural defenses against diabetes.
A recent study found that tomato plants artificially stimulated with chemical jasmonic acid attract parasitic wasps, which kill twice as many caterpillars on treated plants. This natural defense mechanism can be used to develop environmentally friendly agricultural pest control methods.
Researchers at Kansas State University conducted a genetic study on corn borer resistance to Bt toxins, finding that the European corn borer's resistance appears to be inherited as an incompletely dominant trait. The team emphasizes the importance of developing effective resistance management plans to mitigate potential losses.
Researchers at the University of Maryland Medical Center have discovered a cancer resistance protein that rapidly pumps out chemotherapy from breast cancer cells. This finding may lead to new strategies to reverse resistance to cancer-fighting drugs, improving treatment outcomes for patients.
Researchers suggest that genetic remnants of an ancient virus incorporated into human DNA may assist the AIDS virus in evading anti-drug treatments. Studies found that a specific enzyme from this endogenous virus gene can complement HIV-1 protease activity, making it resistant to current drugs.
Researchers at the University of Limerick have developed a prototype penicillin structure that works by incorporating a unique fragment to the penicillin molecule, fatal to bacteria and activated only when cleaved. This new approach shows promise in combating antibiotic-resistant bacterial strains.
Scientists have discovered a novel form of vancomycin that may be effective against resistant bacteria. The findings suggest a new way for the drug to bind to bacteria, opening an avenue for developing next-generation antibiotics.
Researchers at Scripps Research Institute and R.W. Johnson Pharmaceuticals have developed a new class of antibacterial agents that inhibit two-component signal transduction systems, a key regulatory mechanism in bacterial virulence. These inhibitors show promise as a potential tool against antimicrobial-resistant pathogens.
Scientists have discovered that Helicobacter pylori resistance to metronidazole is caused by mutation in the rdxA gene. This gene codes for an enzyme that converts metronidazole into hydroxylamine, a mutagen and cancer-causing chemical.
Resistant starch promotes bifido bacteria growth in the gut, boosting protection against bowel diseases and cancer. The discovery may soon lead to 'edible plastics' that can carry beneficial substances safely through the digestive tract.
Researchers have discovered compounds in the bark of the pawpaw tree that show preliminary success in fighting some drug-resistant cancers. The compounds, called Annonaceous acetogenins, preferentially kill multidrug-resistant cells by inhibiting ATP production, pulling the plug on their energy source.
Researchers found glioblastoma multiforme tumors resistant to procarbazine exhibited defects in mismatch repair, leading to drug resistance. The study may lead to more effective treatment of GBM, a common and virulent brain tumor.
University of Pennsylvania researchers discover three-dimensional atomic structure of vancomycin using X-ray diffraction analysis. The advance provides detailed knowledge about the vancomycin molecule to help design new antibiotics effective against vancomycin-resistant bacteria.
Researchers have identified a molecule that allows bacteria to resist an unusually wide range of drugs, including those with different chemical properties. This discovery highlights the dormant potential of some bacteria to survive complex antibiotic treatments.
Researchers at the USDA's Agricultural Research Service have developed new corn germplasm lines that resist two key nematode pests, Meloidogyne incognita and M. arenaria. These resistant plants can help farmers reduce yield losses of up to 30% in southern US states, with little or no treatment required.
A study published in the journal Antimicrobial Agents and Chemotherapy found that healthy young children in Mexico were colonized by E. coli resistant to multiple antibiotics. The study discovered that nearly 90% of stool samples contained isolates resistant to two or more antibiotics, highlighting a significant route for the dissemina...