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Biosciencia News
Everyday news through scientist eyes.
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Harvard researchers discover hormon that spurs beta cell production. Monthly alternative to insulin?

Harvard researchers discover hormon that spurs beta cell production. Monthly alternative to insulin? | Biosciencia News | Scoop.it

Researchers at the Harvard Stem Cell Institute have discovered a hormone that holds promise for a dramatically more effective treatment of type 2 diabetes, a metabolic illness afflicting an estimated 26 million Americans. It could eventually mean that instead of taking insulin injections three times a day, you might take an injection of this hormone once a week or once a month, or in the best case maybe even once a year,” said Doug Melton (right). Melton and postdoctoral fellow Peng Yi discovered the hormone betatrophin, which has the potential to improve diabetes treatment.

 

Researchers at the Harvard Stem Cell Institute (HSCI) have discovered a hormone that holds promise for a dramatically more effective treatment of type 2 diabetes, a metabolic illness afflicting an estimated 26 million Americans. The researchers believe that the hormone might also have a role in treating type 1, or juvenile, diabetes.

 

The hormone, called betatrophin, causes mice to produce insulin-secreting pancreatic beta cells at up to 30 times the normal rate. The new beta cells only produce insulin when called for by the body, offering the potential for the natural regulation of insulin and a great reduction in the complications associated with diabetes, the leading medical cause of amputations and non-genetic loss of vision.

 

The researchers who discovered betatrophin, HSCI co-director Doug Meltonand postdoctoral fellow Peng Yi, caution that much work remains to be done before it could be used as a treatment in humans. But the results of their work, which was supported in large part by a federal research grant, already have attracted the attention of drug manufacturers.


Via Dr. Stefan Gruenwald
Biosciencia's insight:

The work was published today by the journal Cell as an early online release.

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Matt Beach Anthony Sims's comment, April 28, 2013 1:38 AM
https://soundcloud.com/prosperousink/03-bottles-bands
CAEXI BEST's curator insight, April 28, 2013 7:34 PM
Les chercheurs de Harvard viennent de  découvrir une hormone qui stimule la production de cellules bêta. Remplacement mensuel à l'insuline?
Center for Accessible Living NKY's curator insight, May 6, 2013 12:28 AM

More on the new possible treatment for juvenile diabetes.

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Teen science genius is ahead of the class - CBS News

Teen science genius is ahead of the class - CBS News | Biosciencia News | Scoop.it
Teen science genius is ahead of the class
CBS News
"We got Sara Volz, who is breeding new types of algae," said President Obama from the annual White House Science Fair. "Where's Sara? (Volz stands up to audience applause).
Biosciencia's insight:
Sara Volz, Age 17: Growing Biofuels Under Her Bed
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First Vaccine Against Autism-Associated Bacterium Clostridium bolteae

First Vaccine Against Autism-Associated Bacterium Clostridium bolteae | Biosciencia News | Scoop.it
A team of scientists from the United States and Canada has created a first-ever carbohydrate-based vaccine against Clostridium bolteae, gut bacterium common in autistic children. Clostridium bolteae was discovered in 2003.
Biosciencia's insight:

Clostridium bolteae was discovered in 2003. It is known to play a role in gastrointestinal disorders, and it often shows up in higher numbers in the gastrointestinal tracts of autistic children than in those of healthy kids.

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The Most Bizarre, Surprising, and Disgusting Animal Superpowers

The Most Bizarre, Surprising, and Disgusting Animal Superpowers | Biosciencia News | Scoop.it
So far, superheroes are only fictional. But some of their powers already exist in the world, possessed by a whole range of strange species. Some creatures have even more amazing, surprising, weird, funny or disgusting powers than any superhero.
Biosciencia's insight:

Your pet is maybe part of them....

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Evil gene would make punishment a tricky business

Evil gene would make punishment a tricky business | Biosciencia News | Scoop.it
Are there evil genes or is it only people who can be evil? A recent story in The Age ("Deep Divide of 'Evil Genes'") raised the question of whether criminals might evade responsibility for their crimes by blaming their genes.
Biosciencia's insight:

How science can treat society problems, do we want to replace religion?

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Artificial Intelligence to provide Google searchers answer and not just links

Ray Kurzweil joined Google to develop a truly intelligent computer ( one that could understand language and then make inferences and decisions on its own.). It will require nothing less than Google-scale data and computing power.
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Nontoxic radioactive Listeria attack cancer

Nontoxic radioactive Listeria attack cancer | Biosciencia News | Scoop.it
Listeria bacteria carrying the compound rhenium-188 (red) can deliver sustained doses of radiation to pancreatic-cancer cells.
Two dangerous things together might make a medicine for one of the hardest cancers to treat.
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Consciousness After Death: Strange Tales From the Frontiers of Resuscitation Medicine

Consciousness After Death: Strange Tales From the Frontiers of Resuscitation Medicine | Biosciencia News | Scoop.it
Sam Parnia practices resuscitation medine. In other words, he helps bring people back from the dead -- and some return with stories. Their tales could help save lives, and even change scientific ideas about the nature of consciousness.
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Wired Space Photo of the Day: A Changing Nebula

Wired Space Photo of the Day: A Changing Nebula | Biosciencia News | Scoop.it
The Universe is rarely static, although the timescales involved can be very long.
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NASA chief: Visiting an asteroid is all agency can afford

NASA chief: Visiting an asteroid is all agency can afford | Biosciencia News | Scoop.it
A NASA plan to send astronauts to an asteroid was met with skepticism Wednesday when NASA Chief Charlie Bolden presented the idea to top space officials in Congress - though their doubts may not be enough to sink the program.
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First Australians may have been migrants rather than drifters

First Australians may have been migrants rather than drifters | Biosciencia News | Scoop.it
Indirect estimates based on carbon dating point to intentional settlement by a large population.
Nature News doi: 10.1038/nature.2013.12865
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Escherichia coli bacteria produce diesel on demand

Escherichia coli bacteria produce diesel on demand | Biosciencia News | Scoop.it
Credit: Marian Littlejohn
It sounds like science fiction but a team from the University of Exeter, with support from Shell, has developed a method to make bacteria produce diesel on demand.
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Rare galaxy found furiously burning fuel for stars

Rare galaxy found furiously burning fuel for stars | Biosciencia News | Scoop.it
Astronomers have found a galaxy turning gas into stars with almost 100 percent efficiency, a rare phase of galaxy evolution that is the most extreme yet observed.
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NASA Prepares For International Space Biology Research Mission

NASA Prepares For International Space Biology Research Mission | Biosciencia News | Scoop.it
Moffett Field, CA (SPX) Apr 26, 2013 - NASA and the Russian Institute of Biomedical Problems, Moscow, are collaborating on a space biology mission aboard an unmanned Russian biosatellite to understand better the ...
Biosciencia's insight:

Spaceflight is known to have effects on biological systems ranging from the structure and function of individual cells, to the whole organism. To investigate these effects, NASA researchers will study the cellular mechanisms responsible for spaceflight-induced changes on tissues and cell growth in mice, including muscle, bone and the cardiovascular and reproductive systems. They also will study behavioral effects in gerbils.

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Cassini observes meteors colliding with Saturn's rings

Cassini observes meteors colliding with Saturn's rings | Biosciencia News | Scoop.it
(Phys.org) —NASA's Cassini spacecraft has provided the first direct evidence of small meteoroids breaking into streams of rubble and crashing into Saturn's rings.
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Five images of Sturne's rings taken by Cassini

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E. coli enters the energy game, could pump out petroleum

E. coli enters the energy game, could pump out petroleum | Biosciencia News | Scoop.it
Growing chambers for algae, which could be engineered to continually pump biofuels out into their growth media.
Biosciencia's insight:

Bacteria are big news in the biofuel business—genetically engineered microorganisms can turn various combinations of biomass, sunlight, and even carbon dioxide into liquid fuels.

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Graphene layers dramatically reduce wear and friction on sliding steel surfaces

Graphene layers dramatically reduce wear and friction on sliding steel surfaces | Biosciencia News | Scoop.it
(Phys.org) —Sometimes, all it takes is an extremely small amount of material to make a big difference.
Biosciencia's insight:

if you still don't know Graphene, just another information to discover those incredible characteristics !

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New view of how embryos develop: Imaging technique allows researchers to see how cells form early spinal cord structures

New view of how embryos develop: Imaging technique allows researchers to see how cells form early spinal cord structures | Biosciencia News | Scoop.it
(Phys.org) —In a factory, outside forces dictate the assembly of parts. Robots lift widgets from trays, assemble them and send them on their way.
Biosciencia's insight:

How an organism is developping,so interesting to discover start of life.

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Cause of LED Efficiency Droop Finally Revealed

Cause of LED Efficiency Droop Finally Revealed | Biosciencia News | Scoop.it

Researchers at University of California, Santa Barbara, in collaboration with colleagues at the École Polytechnique in France, have conclusively identified Auger recombination as the mechanism that causes light emitting diodes (LEDs) to be less efficient at high drive currents. 

Until now, scientists had only theorized the cause behind the phenomenon known as LED “droop”—a mysterious drop in the light produced when a higher current is applied. The cost per lumen of LEDs has held the technology back as a viable replacement for incandescent bulbs for all-purpose commercial and residential lighting.

This could all change now that the cause of LED efficiency droop has been explained, according to researchers James Speck and Claude Weisbuch of the Center for Energy Efficient Materials at UCSB, an Energy Frontier Research Center sponsored by the U.S. Department of Energy. 

Knowledge gained from this study is expected to result in new ways to design LEDs that will have significantly higher light emission efficiencies. LEDs have enormous potential for providing long-lived high quality efficient sources of lighting for residential and commercial applications. The U.S. Department of Energy recently estimated that the widespread replacement of incandescent and fluorescent lights by LEDs in the U.S. could save electricity equal to the total output of fifty 1GW power plants. 

“Rising to this potential has been contingent upon solving the puzzle of LED efficiency droop,” commented Speck, professor of Materials and the Seoul Optodevice Chair in Solid State Lighting at UCSB. “These findings will enable us to design LEDs that minimize the non-radiative recombination and produce higher light output.”


Via Dr. Stefan Gruenwald
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Discovery yields supertough, strong nanofibers

Discovery yields supertough, strong nanofibers | Biosciencia News | Scoop.it
University of Nebraska-Lincoln materials engineers have developed a structural nanofiber that is both strong and tough, a discovery that could transform everything from airplanes and bridges to body armor and bicycles.
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DNA Study Reveals Genetic History of Europe

DNA Study Reveals Genetic History of Europe | Biosciencia News | Scoop.it
An international team of scientists has used ancient DNA recovered from human remains dating from up to 5,500 BC to reconstruct the first detailed genetic history of modern Europe.
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Budgets Nudge NASA Toward Balloon-Based Planetary Science: First Target ... - Forbes

Budgets Nudge NASA Toward Balloon-Based Planetary Science: First Target ... - Forbes | Biosciencia News | Scoop.it
RedOrbit
Budgets Nudge NASA Toward Balloon-Based Planetary Science: First Target ...
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Mysterious hot spots observed in a cool red supergiant

Mysterious hot spots observed in a cool red supergiant | Biosciencia News | Scoop.it
(Phys.org) —Astronomers have released a new image of the outer atmosphere of Betelgeuse – one of the nearest red supergiants to Earth – revealing the detailed structure of the matter being thrown off the star.
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Experiment aims to steep rainforest in carbon dioxide

Experiment aims to steep rainforest in carbon dioxide | Biosciencia News | Scoop.it
Sensor-studded plots in the Amazon forest will measure the fertilizing effect of the gas.
Nature 496 405 doi: 10.1038/496405a
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Engineer plans to use century-old automotive manufacturing technique to enhance performance of novel medical devices

Engineer plans to use century-old automotive manufacturing technique to enhance performance of novel medical devices | Biosciencia News | Scoop.it
While automotive and medical device manufacturing may seemingly have little in common, the latter has long benefited from advancements in the former.
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