In the Grand Canyon reach of the Colorado River, two species play an outsized role in the fate of mercury in the aquatic ecosystem, and their numbers are altered by flood events.
No human being on this earth comes through life without breathing, drinking water and consuming salt. For the vast majority of us, this also means involuntary ingestion of microplastics.
Elevated blood levels of toxic chemicals found in pesticides, nonstick cookware, and fire retardants have been tied to an increased risk for celiac disease in young people, new research shows.
Scientists have called for labelling to warn the public about levels of arsenic in rice, after their research found half of rice varieties studied exceeded maximum limits on the deadly toxin.
Through serendipity, researchers considerably reduced the toxicity of a potential antibiotic against the most feared drug-resistant bacteria, while also improving its stability in fighting infections. The new antibiotic -- administered via the windpipe to target lung infections -- proved more effective than its experimental predecessor and traditional last-resort antibiotic therapies in fighting drug-resistant bacteria in laboratory cell cultures and mice.
A recently completed study indicates that smoking by pregnant mothers caused roughly an 1.5-fold asthma risk in their offspring at the ages between 31 and 46.
With the coronavirus pandemic temporarily shuttering hair salons, many clients are appreciating, and missing, the ability of hair dye to cover up grays or touch up roots. However, frequent coloring, whether done at a salon or at home, can damage hair and might pose health risks from potentially cancer-causing dye components. Now, researchers reporting in ACS Central Science have developed a process to dye hair with synthetic melanin under milder conditions than traditional hair dyes.
Researchers report the development of a sensitive and specific assay to detect different serotypes of Salmonella, paving the way for rapid serotyping directly from specimens. This improvement upon current testing methods can play a critical role in quickly tracing the origin of the infection. The report appears in The Journal of Molecular Diagnostics, published by Elsevier.
Researchers report evidence that the compounds in e-cigarette liquid could potentially cause the body's tissue repair process to go haywire and lead to scarring inside the lungs. The new study, conducted in cell cultures, also suggests that inhibiting a certain nicotinic receptor could help promote the death of overactive fibroblast cells and thus slow scar formation, called fibrosis, in affected individuals.
Scientists have identified a collection of biomarkers that together signal that a person's cancer treatment may be harming their heart.