Researchers have studied the immediate reaction in the brain after quitting smoking. At just 12 hours after kicking the habit, the oxygen uptake and blood flow in the brain decrease significantly compared to never-smokers. This could explain why it is so difficult to say goodbye to nicotine once and for all.
Fragrances that are sensitive or need to be released with a time delay can be enclosed in...
The cold weather of winter can also mean dry, cracked skin. Many reach for the moisturizer to...
In a pair of related studies, scientists have shown their drug candidates can target biological...
A Kevlar membrane can enable more durable batteries that adapt to various environments. The membrane should be able to prevent the type of short circuit that is thought to have caused the Boeing 787 battery fires of 2013.
Water-filled micropores in hot rock may have acted as the nurseries in which life on Earth began. A team of scientists has shown that temperature gradients in pore systems promote the cyclical replication and emergence of nucleic acids.
In a pair of related studies, scientists have shown their drug candidates can target biological pathways involved in the destruction of brain cells in Parkinson's disease. The studies suggest it is possible to design highly effective and highly selective drug candidates that can protect the function of mitochondria, which provide the cell with energy, ultimately preventing brain cell death.
President Barack Obama wants the U.S. to invest much more in fighting antibiotic-resistant germs to prevent re-emergence of diseases conquered long ago. The White House says Obama will ask Congress to nearly double its funding to fight antibiotic resistance to $1.2 billion.
In a bid to reduce waste from the harvest and export of southern rock lobsters– a multimillion dollar industry in South Australia– Australian researchers have found innovative ways of using leftover shells and parts from the processing of this premium seafood. Lobster lovers rejoice: you could soon see lobster-infused chips, dips, crackers and seasonings stocked on your supermarket shelves.
The trachea is a tube that connects the upper respiratory tract to the lungs and helps carry air to the lungs. Traditional treatments for tracheal diseases usually involve removal of the affected tracheal segment. However, 3-D printing can effectively create a biodegradable tracheal segment containing a patient’s own cells for use in complex tracheal reconstruction.
Cancer uses a little-understood element of cell signaling to hijack the communication process and spread. A new computational study shows how cancer cells take advantage of the system by which cells communicate with their neighbors as they pass messages to “be like me” or “be not like me.”
On Jan. 27, 1970, James Schlatter, a chemist working for G.D. Searle & Company, patented an artificial sweetener as “peptide sweetening agents.” It was later named aspartame. It remains, even today, a very popular sugar substitute but is frequently vilified.
“Living-dead” bacteria exist in limbo: biologically active but not proliferating. Buried in this zombie state, disease-causing bacteria could come back from the dead to re-infect patients. Researchers have produced the first evidence of this strange phenomenon in tuberculosis, suggesting new avenues for treatment.
Millions of genetically modified mosquitoes could be released in the Florida Keys if British researchers win approval to use the bugs against two extremely painful viral diseases. Never before have insects with modified DNA come so close to being set loose in a residential U.S. neighborhood.
Forensic experts began excavating graves and examining bones this weekend in a tiny chapel in Madrid, hoping to solve the centuries-old mystery of exactly where the great Spanish writer Miguel de Cervantes was laid to rest. The author of "Don Quixote" was buried in 1616 at the Convent of the Barefoot Trinitarians in Madrid's historic Barrio de las Letras, but the exact whereabouts of his grave within the convent chapel are unknown.
The umami taste could have an important and beneficial role in health, according to a new study. Research also found that kokumi substances, which modify flavor, could improve the taste of low-fat foods.
About 30 percent of U.S. adults reported not regularly getting a sufficient amount of sleep, a 2012 CDC survey found. Sleep deficiency has been linked to increased risk of automobile crashes, chronic disease and early mortality. Giving employees more control over their work schedules may help curb sleep deficiency.
Stress hormones in the mother can affect fetal development. Researchers found that increased levels of glucocorticoid stress hormones in pregnant mice caused the mother to eat more but reduced the ability of the placenta to transport glucose to her fetus.
Approximately 170,000 people die from alcoholic cirrhosis of the liver in Europe every year. Although alcohol is the most important risk factor, less is known about the significance of different patterns of drinking. Now, investigators have established that alcohol drinking pattern has a significant influence on the risk of cirrhosis and that daily drinking increases that risk compared with drinking less frequently.
The process of converting the sun’s energy into liquid fuels requires a sophisticated, interrelated series of choices. Now, scientists have outlined a tool to help engineers better gauge the overall yield, efficiency and costs associated with scaling solar-fuel production processes up into large-scale refineries.
Lori Simons took the bright orange pill at 3 a.m. Eight hours later, doctors sliced into her brain, looking for signs that the drug was working. She is taking part in one of the most unusual cancer experiments in the nation. With special permission from the FDA and multiple drug companies, a hospital is testing medicines very early in development and never tried on brain tumors before.
A revolutionary device has been shown to significantly lower blood pressure among patients with uncontrolled high blood pressure, compared to those treated with usual drug measures. The device is a paper clip-sized implant that is inserted between the artery and vein in the upper thigh, in a procedure lasting around 40 minutes under local anesthetic.
A Wyoming company says it will replace a pipeline that broke and spilled oil into the Yellowstone River with a new line buried more deeply to protect against future accidents. The spill contaminated the water supply for 6,000 residents of Glendive, Montana.
The evidence to date suggests that up to 1 percent of all children in the UK have blood markers for celiac disease, an autoimmune reaction to dietary gluten from wheat, barley and rye. While the numbers of new cases diagnosed in infants and toddlers remained fairly stable across all four countries, diagnoses among children older than two years almost tripled in the space of 20 years.
Researchers have studied the stability of diverse arsenic species found in edible marine algae and have established the best conditions for their storage and preservation.
While the link between salt and hypertension is well known, scientists haven’t understood how high salt intake increased blood pressure. Now, by studying the brains of rats, researchers have discovered that ingesting large amounts of dietary salt causes changes in key brain circuits.
Many health advocates advise people to eat an orange and drink water rather than opt for a serving of sugary juice. But, scientists are reporting that the picture is not clear-cut.
Gertrude Belle Elion was born Jan. 23, 1918 in New York City. She was a biochemist and pharmacologist who received the Nobel Prize in Physiology or Medicine in 1988 for the development of drugs using methods of her own devising, which later led to the development of AZT, used to fight HIV/AIDS.
Consumers perceive that organic cow milk differs from conventionally produced milk and that these differences justify the premium price for organic milk. But, in terms of nutrients in milk, there is nothing distinct about organic milk that makes it unique from conventionally produced milk once the different factors that influence milk production are taken into consideration.
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