Insulin grown in plants relieves diabetes in mice; UCF study holds promise for humans
...uld hold the key to restoring the bodys ability to produce insulin and help millions of Americans who suffer ...since proposed using lettuce instead of tobacco to produce the insulin because that crop can be produced cheaply and avoids the negative stigma associated with...Using stem cells to help heart attack victims
...yocytes is poor. At the moment we only know how to produce a few million cardiomyocytes, but to treat just one heart attack patient, we may need one billion that all function in the correct way." To help overcome the many challenges that stem cells bring, Dr Denning and co-investigator Professor Stephen Hi...System to analyze beating heart stem cells could lead to heart attack treatments
...yocytes is poor. At the moment we only know how to produce a few million cardiomyocytes, but to treat just one heart attack patient, we may need one billion that all function in the correct way. To help overcome the many challenges that stem cells bring, Dr Denning and his team plan to engineer a novel sy...New research identifies anti-viral protein that may predict who might be at risk to develop lupus
Certain families produce higher levels of a specific molecule, called interferon-alpha, that primes the bodys immune system to turn on, and in some cases initiate an autoimmune attack on itself, according to new research from Hospital for Special Surgery in New York City. ...Isoprene emission from plants -- a volatile answer to heat stress
...ss by which plants use light energy to fix CO2 and produce their own food), against thermal stress. To test this hypothesis, scientists Katja Behnke and Jrg-Peter Schnitzler from the Institute for Meteorology and Climate Research of the Research Centre Karlsruhe in Garmisch-Partenkirchen in Germany, together...... example is iron with a bit of carbon mixed in. To produce materials for modern electronics, small amounts of impurities are introduced into silicon a process called doping. It is these impurities that enable electricity to flow through the semiconductor and allow designers to control the electronic propert...Boston Univeristy bioengineers devise 'dimmer swith' to regulate gene expression in mammal cells
...a Deans invented the switch, which can be tuned to produce large or small quantities of protein, or none at all. The research detailing their new switch, A Tunable Genetic Switch Based on RNAi and Repressor Proteins for Regulating Gene Expression in Mammalian Cells, appears in the July 27 issue of Cell. ...Scientists find stem cell switch
...t they are able to either regenerate themselves or produce other types of cells. The ultimate source of cells... four stem cells that divides infrequently and can produce any type of cell in the root. This study proved that ethylene is the cue needed to promote cell divi...Renewable energy wrecks environment
...of energy that each so-called renewable source can produce in terms of Watts of power output per square meter...ass farm, a 770 square kilometer area is needed to produce as much energy as one 1000 Megawatt electric (MWe) nuclear plant. To meet 2005 US electricity demand...New joint replacement material developed at MGH put to first clinical use
...nk the polyethylene, bonding molecules together to produce a much more durable material. The procedure also generates free radicals that could lead to oxidization and degradation of the implant, but the research team found that melting the material would eliminate free radicals. The first-generation highly ......udies to other species we hope to help breeders to produce varieties that are optimally adapted to rapidly changing environmental conditions," explains Weigel. He is already collaborating with the International Rice Research Institute (IRRI) in the Philippines to apply the methods and experience gathered wit...'Preconditioning' helps protect brain's blood vessels from stroke
... occurs in stroke -- activate certain enzymes that produce NO. This process also produces destructive, oxidat...new study, NO combines with these free radicals to produce low levels of another molecule, called peroxynitrite. "At higher levels, peroxynitrite is a very d...JCI table of contents: July 19, 2007
...hich normal amounts of insulin are not adequate to produce a normal insulin response from fat, muscle, and liver cells. The result is an elevation in blood glucose levels. While the causes of insulin resistance are not completely defined, previous studies have suggested that an atypical protein kinase C (aPK...Genetic diversity in honeybee colonies boosts productivity
...nell scientists: Promiscuous queens, they suggest, produce genetically diverse colonies that are far more productive and hardy than genetically uniform colonies produced by monogamous queens. "An intriguing trait of honeybee species worldwide is that each honeybee queen mates with an extraordinarily high num...Obesity found to be a risk factor for multiple myeloma
...multiple myeloma, a cancer of the blood cells that produce antibodies. Multiple myeloma currently affects mo...or example, adipocytes, cells found in fat tissue, produce a cell signal, called interleukin-6 (IL-6), which promotes the immune systems inflammation response....Expert to provide update after 'worst tomato virus' hits California
...to die and fall off, rendering the plant unable to produce fruit. The good news is that the whitefly that carries the virus does not do well in colder areas, such as in Northern California, the state's primary tomato growing area. "This gives us hope that we have this under control, but when the worst tom...Protein pulling -- Learning how proteins fold by pulling them apart
...ines built from those blueprints. All living cells produce proteins by stringing together strands of amino acids based on the sequences of their DNA. Proteins are created in linear chains, like strands of pearls, with each amino acid representing a bead on the strand. However, knowing the order of the amino ...Antibody-altering protein found in developing B cells
...stem to identify and fight disease pathogens, they produce a protein called activation-induced cytidine deaminase (AID). Once a B cell is activated by the presence of a disease pathogen, it begins to make AID which directs and strengthens the B cells response to the infection by mutating the antibodies prod...Synthetic adhesive mimics sticking powers of gecko and mussel
...rge scale, said Messersmith, who believes they can produce a material with even better adhesion. The challenge will be to scale up the technology and still have the geckel material exhibit adhesive behavior....UK scientists lift lid on genetics of coronary artery disease
...n. "We can now examine the whole genome quickly to produce great results - something that couldnt have been done at all a few years ago. This study demonstrates just how important it is to invest in a healthy lifestyle to help protect your heart, especially if you think your family history might put you at i...