Echinacea is not effective in shortening the duration or decreasing the severity of upper respiratory tract infections in children, according to a study in the December 3 issue of The Journal of the American Medical Association (JAMA).
Upper respiratory tract infections (URIs) are a significant health burden in childhood, according to background information in the article. The average child has six to eight colds each year, each lasting seven to nine days. While children are frequently given drugs such as decongestants, antihistamines, and cough suppressants to reduce symptoms, there is little evidence that these medications are effective in children younger than 12 years. The authors add that it has been estimated that 11 percent to 21 percent of children in the United States and Canada who are receiving care from conventional physicians are also using alternative therapies. Echinacea, one of the most commonly used herbal remedies in the U.S., has been used extensively for the prevention and treatment of URIs in adults.
James A. Taylor, M.D., from the University of Washington, Seattle, and colleagues, conducted a randomized controlled trial to determine the effectiveness and safety of Echinacea purpurea (a type of echinacea used for medicinal purposes) in treating URIs in children two to 11 years old. A total of 524 children were included in the study. The patients were randomized to receive either echinacea or placebo for up to three URIs over a four-month period. The echinacea or placebo was started at the onset of symptoms and continued for a maximum of ten days.
Diagnoses: When Are Several Opinions Better Than One?
19.07.2016 | Max-Planck-Institut für Bildungsforschung
High in calories and low in nutrients when adolescents share pictures of food online
07.04.2016 | University of Gothenburg
Ultrafast lasers have introduced new possibilities in engraving ultrafine structures, and scientists are now also investigating how to use them to etch microstructures into thin glass. There are possible applications in analytics (lab on a chip) and especially in electronics and the consumer sector, where great interest has been shown.
This new method was born of a surprising phenomenon: irradiating glass in a particular way with an ultrafast laser has the effect of making the glass up to a...
Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion
Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
25.10.2016 | Earth Sciences
25.10.2016 | Power and Electrical Engineering
25.10.2016 | Process Engineering