Tea tree oil and silver together make more effective antisepticsMarch 30, 2009In the fight against infected skin wounds, mixing tea tree oil and silver or putting them in liposomes, (small spheres made from natural lipids), greatly increases their antimicrobial activity and may minimise any side effects. Wan Li Low and colleagues from the University of Wolverhampton presented research at the Society for General Microbiology meeting in Harrogate today (30 March) which showed that although both tea tree oil and silver (in the form of silver nitrate) were effective against a range of micro-organisms, when low concentrations of the two agents were combined, their antimicrobial activity increased. They carried out laboratory tests on pathogens that are involved in skin infections. Bacteria such as Staphylococcus aureus (which is a common cause of skin infections and abscesses), and the yeast Candida albicans, which causes thrush, were killed. These positive findings led the researchers to use microscopic spherical bodies called liposomes, made of phospholipids, the naturally occurring lipids or fats in the cell wallsmembranes, to deliver the silver and tea tree oil mix to infected wounds the pathogens. This technique allows controlled release and therefore has the potential to use lower, less toxic, concentrations of the antimicrobial agents to treat infected wounds. This may also be of value to treat antibiotic resistant strains such as MRSA. Used alone, both silver and tea tree oil can cause side effects in patients. Over exposure to silver can cause a bluish-grey discolouration of the skin and applying unregulated amounts of tea tree oil externally can cause skin irritation. With increasing life expectancy, age related conditions such as chronic leg ulcers or bedsores are likely to become more common. Current treatments using traditional silver-based creams and dressings use relatively high metal concentrations. Creams containing lower amounts of the agents could provide safer and readily available over-the-counter antiseptic compounds for effective treatment without damaging the surrounding skin. Society for General Microbiology |
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| Related Antimicrobial Current Events and Antimicrobial News Articles U.S. and European Experts Applaud Creation of New Transatlantic Task Force on Global Antibiotic Resistance Threat Experts on both sides of the Atlantic applaud President Barack Obama and Swedish Prime Minister Fredrik Reinfeldt, representing the European Union (EU) Presidency, for establishing a transatlantic task force to address antibiotic resistance, an urgent and growing problem that threatens patient safety and public health worldwide. Inappropriate sepsis therapy leads to fivefold reduction in survival Patients experiencing septic shock who receive inappropriate therapy may have a fivefold reduction in survival, shows a new study. Propolis has proved to be a product with ability to have beneficial effects for health Growing concerns about health has caused the scientific community to focus their interest on investigating functional foods which contribute to boosting the prevention and reduction of the risk of suffering from certain illnesses. Triple-Combo Drug Shows Promise Against Antiviral-Resistant Swine Flu, UAB Researcher Says An experimental drug cocktail that includes three prescriptions now widely available offers the best hope in developing a single agent to treat drug-resistant H1N1 swine flu, says a virology researcher in the University of Alabama Birmingham (UAB) Division of Pediatric Infectious Diseases. Aggressive microdermabrasion induces wound-healing response in aging skin Microdermabrasion using a coarse diamond-studded instrument appears to induce molecular changes in the skin of older adults that mimic the way skin is remodeled during the wound healing process. Misuse of antibiotics not the only cause of resistance says report The perception that antibiotic resistance is primarily the undesirable consequence of antibiotic abuse or misuse is a view that is simplistic and inaccurate. Paradigm shift needed to combat drug resistance When people travel, bacteria and other infectious agents travel with them. As about a billion people cross international borders each year, many more billions of the bugs come along for the ride. Promising novel treatment for human cancer -- Chrysanthemum indicum extract A series of studies have demonstrated that Chrysanthemum indicum possesses antimicrobial, antiinflammatory, immunomodulatory, and neuroprotective effects. McMaster researchers discover a new antibacterial lead Antibiotic resistance has been a significant problem for hospitals and health-care facilities for more than a decade. But despite the need for new treatment options, there have been only two new classes of antibiotics developed in the last 40 years. Caltech scientists get detailed glimpse of chemoreceptor architecture in bacterial cells Using state-of-the-art electron microscopy techniques, a team led by researchers from Caltech has for the first time visualized and described the precise arrangement of chemoreceptors-the receptors that sense and respond to chemical stimuli-in bacteria. More Antimicrobial Current Events and Antimicrobial News Articles |
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