Caption: Scanning electron microscopic image of Staphylococcus aureus bacteria (orange). Credit: CDC/Jeff Hageman, MHS
Over the years, people suffering from eczema have slathered their skin with lotions containing everything from avocado oil to zinc oxide. So, what about a lotion that features bacteria as the active ingredient? That might seem like the last thing a person with a skin problem would want to do, but it’s actually a very real possibility, based on new findings that build upon the growing realization that many microbes living in and on the human body—our microbiome—are essential for good health. The idea behind such a bacterial lotion is that good bugs can displace bad bugs.
Eczema is a noncontagious inflammatory skin condition characterized by a dry, itchy rash. It most commonly affects the cheeks, arms, and legs. Previous studies have suggested that the balance of microbes present on people with eczema is different than on those with healthy skin . One major difference is a proliferation of a bad type of bacteria, called Staphylococcus aureus.
Recently, an NIH-funded research team found that healthy human skin harbors beneficial strains of Staphylococcus bacteria with the power to keep Staph aureus in check. To see if there might be a way to restore this natural balance artificially, the researchers created a lotion containing the protective bacteria and tested it on the arms of volunteers who had eczema . Just 24 hours after one dose of the lotion was applied, the researchers found the volunteers’ skin had greatly reduced levels of Staph aureus. While further study is needed to learn whether the treatment can improve skin health, the findings suggest that similar lotions might offer a new approach for treating eczema and other skin conditions. Think of it as a probiotic for the skin!
With peanut allergy on the rise in the United States, you’ve probably heard parents strategizing about ways to keep their kids from developing this potentially dangerous condition. But is it actually possible to prevent peanut allergy, and, if so, how do you go about doing it?
There’s an entirely new strategy emerging now! A group representing 26 professional organizations, advocacy groups, and federal agencies, including the National Institutes of Health (NIH), has just issued new clinical guidelines aimed at preventing peanut allergy . The guidelines suggest that parents should introduce most babies to peanut-containing foods around the time they begin eating other solid foods, typically 4 to 6 months of age. While early introduction is especially important for kids at particular risk for developing allergies, it is also recommended that high-risk infants—those with a history of severe eczema and/or egg allergy—undergo a blood or skin-prick test before being given foods containing peanuts. The test results can help to determine how, or even if, peanuts should be introduced in the youngsters’ diets.
When people think about the human microbiome—the scientific term for all of the microbes that live in and on our bodies—the focus is often on bacteria. But Keisha Findley, the young researcher featured in today’s LabTV video, is fascinated by a different part of the microbiome: fungi.
While earning her Ph.D. at Duke University, Durham, N.C., Findley zeroed in on Cryptococcus neoformans, a common, single-celled fungus that can lead to life-threatening infections, especially in people with weakened immune systems. Now, as a postdoctoral fellow at NIH’s National Human Genome Research Institute, Bethesda, MD, she is part of an effort to survey all of the fungi, as well as bacteria, that live on healthy human skin. The goal is to get a baseline understanding of these microbial communities and then examine how they differ between healthy people and those with skin conditions such as acne, athlete’s foot, skin ulcers, psoriasis, or eczema.