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.
Montreal, January 12, 2016 -- If your toddler is a Forgetful Jones, you might want to help boost his or her brainpower sooner rather than later. New research shows that preschoolers who score lower on a memory task are likely to score higher on a dropout risk scale at the age of 12.
"Identifying students who are at risk of eventually dropping out of high school is an important step in preventing this social problem," says Caroline Fitzpatrick, first author of a study recently published in Intelligence, and a researcher at Concordia's PERFORM Centre.
She and the study's other researchers, who are affiliated with the Université Sainte-Anne and Université de Montréal, have suggestions for how parents can help kids improve their memory.
Oxygen is indispensable to animal and plant life, but its presence in the wrong places can feed a fire and cause iron to rust.
In the fabrication of solid state lighting devices, scientists are learning, oxygen also plays a two-edged role. While oxygen can impede the effectiveness of gallium nitride (GaN), an enabling material for LEDs, small amounts of oxygen in some cases are needed to enhance the devices' optical properties. GaN doped with europium (Eu), which could provide the red color in LEDs and other displays, is one such case.
Among adults with Clostridium difficile infection that is recurrent or not responsive to treatment, the use of frozen compared with fresh fecal microbiota transplantation (FMT) did not result in a significantly lower rate of resolution of diarrhea, indicating that frozen FMT may be a reasonable treatment option for these patients.
A songbirds' vocal muscles work like those of human speakers and singers, finds a new study. The research on Bengalese finches showed that each of their vocal muscles can change its function to help produce different parameters of sounds, in a manner similar to that of a trained opera singer.
Pitch, for example, is important to songbird vocalization, but there is no single muscle devoted to controlling it. They don't just contract one muscle to change pitch, they have to activate a lot of different muscles in concert, and these changes are different for different vocalizations. Depending on what syllable the bird is singing, a particular muscle might increase pitch or decrease pitch.
ST. LOUIS - Opioids may cause short-term improvement in mood, but long-term use imposes risk of new-onset depression, a Saint Louis University study shows.
For half a century, cancer researchers have struggled with a confusing paradox: If cancer is caused by the occurrence and accumulation of cancer-causing (oncogenic) mutations over time, young children should get less cancer since they have fewer mutations.
So why do young children have a higher incidence of leukemia than teenagers and young adults?
NEW YORK, NY (Jan. 6, 2016) -- A new study conducted at Columbia University Medical Center (CUMC) has revealed some of the underlying mechanisms that may increase the risk of heart disease in people with sleep apnea. The study also found that statins -- the cholesterol-lowering medications commonly prescribed to combat heart disease -- may help reverse this process.
The study was published in the Jan. 6, 2016 online edition of Science Translational Medicine.
The compound CGP3466B, already proven nontoxic for people, may effectively and rapidly treat depression, according to results of a study in mice.
The Johns Hopkins Medicine neuroscientists who conducted the research say that the compound -- previously shown to block cocaine craving in the brains of rodents -- delivers antidepressant effects to mice within hours instead of weeks or months, like currently available antidepressants. The results of the study will be summarized Jan. 12 online in the journal Molecular Psychiatry.
Psychiatrists investigating depression have been energized in recent years by reports of rapid, successful treatment with drugs that interfere with the brain chemical glutamate, such as the anesthetic ketamine.
New research from Emory University School of Medicine is providing hints as to which forms of depression may respond best to drugs that target glutamate.
The findings are scheduled for publication online on January 12 in Molecular Psychiatry.
Depressed patients with signs of systemic inflammation have elevated levels of glutamate in regions of the brain that are important for motivation, the researchers have found.
The Romans created a clear line between Iron Age and modern sanitation and hygiene. They built public multi-seat latrines with washing facilities and sewerage systems, they piped drinking water from aqueducts and heated public baths for washing.
To augment that, they developed laws designed to keep their towns free of excrement and rubbish.
But it may not have helped when it came to putting a stop to intestinal parasites such as whipworm, roundworm and Entamoeba histolytica dysentery, according to a journal in the journal Parasitology.
The coffee berry borer (Hypothenemus hampei) is a plague that affects coffee crops. It has a detoxification system based on microbial communities so it can perform its life cycle in the plant while exposed to high levels of caffeine. In human terms, the caffeine is equivalent to 500 espressos , which would kill a person."The aim was to study which are they and how they are associated with the digestive tract of the insect. For the study we took samples of insects from different locations like Hawaii, Indonesia, Puerto Rico, Mexico, Kenya, India and Guatemala," Javier A. Ceja Navarro of Berkeley National Laboratory told Investigación y Desarrollo.
It may be time to embrace DDT again. New findings from the National Institute of Allergy and Infectious Diseases (NIAID) confirm dihydroartemisinin-piperaquine, the first-line treatment for Plasmodium falciparum malaria infection in Cambodia, has failed in certain provinces due to parasite resistance to artemisinin and piperaquine.
