Revolutionary surgery in womb transplants may give hope to patients with fertility problems. Infertility is an increasing problem in the western world and it is estimated that around 15% of all couples are infertile. Most causes of infertility are today treatable by in vitro fertilisation (IVF) and sperm injection (ICSI), but infertility due to a hysterectomy or womb (ie uterus) malformation is not treatable. Uterine infertility can be caused by injury, congenital conditions, or hysterectomy. Even th
A compound found in many foods and drinks could form the basis for new drugs to defeat cancer and heart disease, scientists at UCL claimed today.
Professor Peter Shepherd and his team believe that caffeine and theophylline- compounds commonly found in cola beverages, coffee, tea and chocolate – block the operation of a key enzyme linked to a wide range of cell functions. This suggests these compounds would block cell growth and also blood clotting. The teams work may also explain the anti-in
Researchers in the Netherlands have found that the herbal dietary supplement St. Johns wort interferes with the metabolism–and potentially the effectiveness of–the chemotherapy drug irinotecan. Their findings appear in the August 21 issue of the Journal of the National Cancer Institute.
St. Johns wort ( Hypericum perforatum L.) is widely used to treat mild to moderate forms of depression. Past studies have suggested that the compound increases levels of CYP3A4, an enzyme
In the search for low-cost color displays that do not drain a computer’s battery, the polymer light-emitting electrochemical cell (LEC) may be the next answer to the problem, according to an international team of electrical engineers.
“The color-variable LEC can provide a solution to simple, low cost color displays,” Cheng Huang, graduate student in electrical engineering at Penn State told attendees today (Aug. 20) at the 224th American Chemical Society annual meeting in Boston.
Ginkgo biloba has no beneficial effect on memory and related mental functions of healthy older adults when taken following manufacturers instructions, according to a study in the Aug. 21st issue of the Journal of the American Medical Association conducted by researchers at Williams College in Williamstown, Mass. and The Memory Clinic in Bennington, Vt.
The study was designed and conducted by the papers lead author, Paul R. Solomon, Ph.D., professor of psychology and found
Herpes viruses enter the body and hide away in cells, often re-emerging later to cause illnesses such as shingles, genital herpes and cancer. How these viruses evade the immune system remains poorly understood, but researchers at Washington University School of Medicine in St. Louis discovered that a mouse herpes virus uses molecules that mimic a cells own proteins to help thwart an immune attack.
The findings also suggest that a branch of the immune system known as the complement sys
Scientists at the University of Stuttgart have succeeded in controlling the structure and function of biological membranes with the help of “DNA origami”. The system they developed may facilitate the…
From the persistent droughts of southern Africa and Central America in the early part of the year to the more recent devastating extreme rainfall in Spain and the deadly Hurricane…
Researchers at the Max Planck Institute for Chemical Physics of Solids, in collaboration with Chongqing University and the Max Planck Institute of Microstructure Physics, have achieved a breakthrough in topological…
Importance of RNA modifications for the development of resistance in fungi raises hope for more effective treatment of fungal infections. An often-overlooked mechanism of gene regulation may be involved in…
HIRI researchers uncover control mechanisms of polysaccharide utilization in Bacteroides thetaiotaomicron. Researchers at the Helmholtz Institute for RNA-based Infection Research (HIRI) and the Julius-Maximilians-Universität (JMU) in Würzburg have identified a…
Most solids expand as temperatures increase and shrink as they cool. Some materials do the opposite, expanding in the cold. Lithium titanium phosphate is one such substance and could provide…
Long gone are the days where all our data could fit on a two-megabyte floppy disk. In today’s information-based society, the increasing volume of information being handled demands that we…
In the search for new materials that can enable more efficient electronics, scientists are exploring so-called 2-D materials. These are sheets of just one atom thick, that may have all…
How simulations help manufacturing of modern displays. Modern materials must be recyclable and sustainable. Consumer electronics is no exception, with organic light-emitting diodes (OLEDs) taking over modern televisions and portable…
Are humans or machines better at recognizing speech? A new study shows that in noisy conditions, current automatic speech recognition (ASR) systems achieve remarkable accuracy and sometimes even surpass human…
Additional data can help differentiate subtle gestures, hand positions, facial expressions The Complexity of Sign Languages Sign languages have been developed by nations around the world to fit the local…
Researchers from Osaka University introduced an innovative technology to lower power consumption for modern memory devices. Stepping up the Memory Game: Overcoming the Limitations of Traditional RAM Osaka, Japan –…