Intermittent fasting, and fasting in general, has been a popular fad health gimmick, but the science isn't on its side. Instead, proponents believe mice are little people so if mice weaned on starvation diets lived longer, people would also.
A recent observational campaign involving more than two dozen optical telescopes and NASA's space based SWIFT X-ray telescope allowed a team of astronomers to measure very accurately the rotational rate of one of the most massive black holes in the universe. The rotational rate of this massive black hole is one third of the maximum spin rate allowed in General Relativity. This 18 billion solar mass heavy black hole powers a quasar called OJ287 which lies about 3.5 billion light years away from Earth. Quasi-stellar radio sources or `quasars' for short, are the very bright centers of distant galaxies which emit huge amounts of electro-magnetic radiation due to the infall of matter into their massive black holes.
The dilemma of our immune system is comparable to the story of Icarus and Daedalus from Greek mythology. To escape their captivity, Daedalus built wings from feathers and wax for himself and his son. Daedalus warned his son that he must neither fly too high but also not too low, otherwise the sun's heat or the humidity of the sea would destroy his wings and he would crash. After they had successfully escaped, Icarus became boisterous and flew higher and higher until the sun began to melt the wax of his wings and he fell into the sea. Similarly, an over- or under-reaction of our immune system can be life-threatening.
Minimal access hip arthroscopy surgery has become the treatment of choice for hip pain in young adults, but a team surgeons believe the procedure is a sham, more like acupuncture than helpful.
In North America, arthroscopic hip surgeries have replaced open surgeries as the go-to cure for femoroacetabular impingement (FAI), a common source of hip pain in young adults, where abnormal femurs lead to damaged cartilage in the hip joint. The number of such procedures increased 18-fold in the U.S. within a decade, especially with athletes.
Scientists have pieced together an early human habitat for the first time, and life was no organic picnic 1.8 million years ago. Nature was out to kill us and the struggle our ancestors face, as all creatures do, is survival. Rather than the myth of ecological balance, if you were going to survive, you got there earlier and were more fit to last.
How did Madagascar once slot next to India? Where was Australia a billion years ago?
Cloud-based virtual globes developed by a team led by University of Sydney geologists mean anyone with a smartphone, laptop or computer can now visualise, with unprecedented speed and ease of use, how the Earth evolved geologically.
Reported today in PLOS ONE, the globes have been gradually made available since September 2014. Some show Earth as it is today while others allow reconstructions through 'geological time', harking back to the planet's origins.
An international team of researchers, with the participation of the University of Granada (UGR), has revealed new data on why breast cancer has a higher incidence and is more aggressive in obese people. The reason is that peritumoral fat (the fat around the tumor) facilitates the expansion and invasion of cancer stem cells (CSCs), which are responsible of the onset and growth of the tumor.
Often patients undergo procedures without real informed consent being achieved due to technical language, jargon and time pressure, with up to half of patients finding it difficult to understand what their doctor tells them [1, 2]. Now a group of Australian doctors has prepared patients for surgery using iPads, and found that patients' understanding was much better than after a face-to-face consultation.
It is vitally important that patients understand what medical procedures they face, both so that they can cope better with the procedure, and so that they can give fully informed consent to the treatment. However, many patients come out of critical face-to-face interviews with doctors not really understanding what to expect or what they might have agreed to.
The use of meldonium--the substance taken by tennis star Maria Sharapova--is widespread among elite athletes, reveals research published online in the British Journal of Sports Medicine.
The findings, which draw on information volunteered by athletes and individual medical teams, and lab data on anti-doping tests from the Baku 2015 European Games, indicate that up to 490 athletes may have been taking meldonium during the competition.
The research, which was carried out on behalf of the European Olympic Committees, contributed to the World Anti-Doping Agency (WADA) taking the decision to ban the use of meldonium in competitive sport as of January 1 this year.
Doctors have long characterized epilepsy as a brain disorder, but researchers at Case Western Reserve University have found that part of the autonomic nervous system functions differently in epilepsy during the absence of seizures.
This connection to the involuntary division of the nervous system may have implications for diagnosing and treating the disease and understanding sudden unexpected death in epilepsy (SUDEP).
The research is published online in the Journal of Neurophysiology.
Researchers at University of California, San Diego School of Medicine and Shiley Eye Institute, with colleagues in China, have developed a new, regenerative medicine approach to remove congenital cataracts in infants, permitting remaining stem cells to regrow functional lenses.
The treatment, which has been tested in animals and in a small, human clinical trial, produced much fewer surgical complications than the current standard-of-care and resulted in regenerated lenses with superior visual function in all 12 of the pediatric cataract patients who received the new surgery.
The findings are published in the March 9 online issue of Nature.
SAN DIEGO, March 13, 2016 -- Electronics manufacturers constantly hunt for ways to make faster, cheaper computer chips, often by cutting production costs or by shrinking component sizes. Now, researchers report that DNA, the genetic material of life, might help accomplish this goal when it is formed into specific shapes through a process reminiscent of the ancient art of paper folding.
The researchers present their work today at the 251st National Meeting & Exposition of the American Chemical Society (ACS). ACS, the world's largest scientific society, is holding the meeting here through Thursday. It features more than 12,500 presentations on a wide range of science topics.
SAN DIEGO, March 13, 2016 -- Hops, those little cone-shaped buds that give beer its bitter flavor, pack a surprisingly healthful punch. They are widely studied for their ability to halt bacterial growth and disease. Now, researchers report that they are close to synthesizing the healthful hops compounds in the lab. This advance could one day help scientists create medicines from these compounds without having to extract them from plants.
The researchers present their work today at the 251st National Meeting & Exposition of the American Chemical Society (ACS). ACS, the world's largest scientific society, is holding the meeting here through Thursday. It features more than 12,500 presentations on a wide range of science topics.
