If used in humans, these hybrid cells could have unknown effects on the body.
As every awkward adolescent or expectant mother knows, sex hormones can have profound effects on the body.
"The possibility that the drug will only do the good things like lose weight and not have myriad effects on the body -- is zero, " he said.
Smokeless nicotine, ingested via a skin patch, is less than ideal because its effects on the body are too broad to treat diseases of the central nervous system such as Alzheimer's.
Prof Robert West, from the health behaviour research unit at University College London, said it was important to remember that smoking had more effects on the body than leading to an early death, such as ageing the skin.
BBC: Women smokers who quit by 30 'evade earlier death risks'
For this jump, the team also worked to create a new generation of space suit for better mobility and visual clarity, studied the effects on the human body of supersonic acceleration and deceleration, developed a new parachute system, and more.
However, they said the findings show that red wine has powerful ingredients which can counteract the effects of smoking on the body.
One possible explanation is that melatonin - a hormone produced at night - is suppressed in those working night shifts, having knock-on effects on oestrogen regulation in the body and protection against DNA damage.
The mountain's summit stands at 8, 848 metres high, and beyond 7, 600 metres climbers enter what is known as the "death zone" - so called because of the serious effects of oxygen deprivation on the body.
"Too much sitting is not the same thing as too little exercise, " says Braun, who studies the effects of exercise and inactivity on the body but was not involved in the new research.
Venezuelan president Hugo Chavez appeared before cameras on Monday sporting a shaved head, as the effects of chemotherapy begin to take a toll on his body.
FORBES: Venezuela's Hugo Chavez Shaves His Head Because Of Chemotherapy
The programme also shows the early effects of pregnancy on the mother's body: painful, swollen breasts and nausea.
It provides more evidence that what's going on in the rest of the body, from inflammation to belly fat, can have major effects on the brain, he added.
The Gamelan Project is part of a growing body of research into the effects of music on the brain.
It will also be possible to check out drugs destined for other parts of the body to see if they have adverse effects on the heart.
Regrettably, although much is known about the chemistry of how the body processes alcohol - and how that can have effects on everything from our digestion to our immune systems - the scientific literature is mute on a cure.
Seattle-based biotech Dendreon is hoping to get U.S. approval for the first cancer drug that would train the body to fight off cancer on its own, with few side effects.
"You can see the physical effects in her stature, due to loss of muscle and stuff on one side of her body, " he said.
DPP-4 regulates hundreds of hormones in the body, not just GLP-1, and blocking it can have unintended effects on others.
My recent Forbes article about the minimum wage contains some claims, facts, and figures based on economic theory and an extensive body of research by economists who have studied the employment effects of the minimum wage.
But the unexpectedly big effect that climate change could have on body size suggests that we may be missing a big piece of the puzzle of understanding climate change effects in the ocean.
FORBES: Carbon Emissions Threaten The Fishing Industry By Shrinking Fish Sizes
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