Flavanols in cocoa may enhance brain blood flow, improve cognitive health: "A new study by boffins at the Brigham and Women's Hospital and Harvard Medical School has found that cocoa flavanols may enhance brain blood flow and improve cognitive health"
At last, an excuse to eat chocolate. The article reports the finding without description of what is going on.
Tuesday, February 20, 2007
Monday, February 19, 2007
BREITBART.COM - Science Finding Ways to Regrow Fingers
BREITBART.COM - Science Finding Ways to Regrow Fingers:" ACell Inc., that makes an extract of pig bladder for promoting healing and tissue regeneration.
It helps horses regrow ligaments, for example, and the federal government has given clearance to market it for use in people. Similar formulations have been used in many people to do things like treat ulcers and other wounds and help make cartilage.
The summer before Lee Spievack's accident, Dr. Alan Spievack had used it on a neighbor who'd cut his fingertip off on a tablesaw. The man's fingertip grew back over four to six weeks, Alan Spievack said.
Lee Spievack took his brother's advice to forget about a skin graft and try the pig powder.
Soon a shipment of the stuff arrived and Lee Spievack started applying it every two days. Within four weeks his finger had regained its original length, he says, and in four months 'it looked like my normal finger.'
It helps horses regrow ligaments, for example, and the federal government has given clearance to market it for use in people. Similar formulations have been used in many people to do things like treat ulcers and other wounds and help make cartilage.
The summer before Lee Spievack's accident, Dr. Alan Spievack had used it on a neighbor who'd cut his fingertip off on a tablesaw. The man's fingertip grew back over four to six weeks, Alan Spievack said.
Lee Spievack took his brother's advice to forget about a skin graft and try the pig powder.
Soon a shipment of the stuff arrived and Lee Spievack started applying it every two days. Within four weeks his finger had regained its original length, he says, and in four months 'it looked like my normal finger.'
This is how science used to be done. 'bubble,bubble toil and trouble' It is interesting and needs to be explained using conventional science.
Friday, February 16, 2007
BBC NEWS | Health | Mice cloned from skin stem cells
BBC NEWS Health Mice cloned from skin stem cells: "Mice cloned from skin stem cells
Many cloned mice survived into adulthood
US researchers have cloned healthy mice from skin cells for the first time.
Despite notorious difficulties in producing animals through cloning, nine of 19 mice who were born survived into adulthood.
The scientists replaced the nucleus from an unfertilised egg with the nucleus from an adult skin stem cell. Mice cloned from skin stem cells
Many cloned mice survived into adulthood
US researchers have cloned healthy mice from skin cells for the first time.
Despite notorious difficulties in producing animals through cloning, nine of 19 mice who were born survived into adulthood.
The scientists replaced the nucleus from an unfertilised egg with the nucleus from an adult skin stem cell. "
This method can provide embryos from a male subject. Embryonic stem cells can be derived from that embryo.
Many cloned mice survived into adulthood
US researchers have cloned healthy mice from skin cells for the first time.
Despite notorious difficulties in producing animals through cloning, nine of 19 mice who were born survived into adulthood.
The scientists replaced the nucleus from an unfertilised egg with the nucleus from an adult skin stem cell. Mice cloned from skin stem cells
Many cloned mice survived into adulthood
US researchers have cloned healthy mice from skin cells for the first time.
Despite notorious difficulties in producing animals through cloning, nine of 19 mice who were born survived into adulthood.
The scientists replaced the nucleus from an unfertilised egg with the nucleus from an adult skin stem cell. "
This method can provide embryos from a male subject. Embryonic stem cells can be derived from that embryo.
Thursday, February 15, 2007
Seeing Molecules
http://sciencematters.berkeley.edu/archives/volume4/issue25/story3.php
Yang is developing a better way to study biomolecules in motion. "What we hope is to visualize chemistry one molecule at a time."
For this feat, Yang uses a technique called single-molecule microscopy. The method employs probes that fluoresce red or blue when excited by a photon of light. The blue one can acquire photons from an external light source, while the red one only accepts photons from its blue counterpart. For his experiments, Yang affixes one blue and one red probe to opposite ends of a study enzyme. When the enzyme is relaxed, and both probes are far apart, the assembly glows blue. When the
enzyme closes, the blue probe can pass along its photon, and the assembly glows red.
Ultimately, Yang's work could result in advances in disease research, drug design, turbulence, materials analysis, and even our grasp of basic biochemical reactions. Says Yang, "I hope that in doing these experiments, we will get the chance to know how nature makes these things happen, and take that understanding to improve our quality of life."
Medical transformation is founded on advances like this are fundamental processes can first be observed and confirmed.
Yang is developing a better way to study biomolecules in motion. "What we hope is to visualize chemistry one molecule at a time."
For this feat, Yang uses a technique called single-molecule microscopy. The method employs probes that fluoresce red or blue when excited by a photon of light. The blue one can acquire photons from an external light source, while the red one only accepts photons from its blue counterpart. For his experiments, Yang affixes one blue and one red probe to opposite ends of a study enzyme. When the enzyme is relaxed, and both probes are far apart, the assembly glows blue. When the
enzyme closes, the blue probe can pass along its photon, and the assembly glows red.
Ultimately, Yang's work could result in advances in disease research, drug design, turbulence, materials analysis, and even our grasp of basic biochemical reactions. Says Yang, "I hope that in doing these experiments, we will get the chance to know how nature makes these things happen, and take that understanding to improve our quality of life."
Medical transformation is founded on advances like this are fundamental processes can first be observed and confirmed.
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