Family Ties To Sudden Cardiac Arrest; Study Finds Risk Goes Up 50 Percent
... Cardiac arrest occurs when the heart suddenly stops beating, due to anabnormal life-threatening heartbeat, called ventricular fibrillation. Incontrast, heart attack occurs when blockages, from blood clots or fatty buildupcalled plaque, in the blood vessels prevent blood flow to the heart. The...Tiger Beetles Go Blind At High Speeds
...beetle is unique. In the midst of hot pursuit, it stops three or four times to reorient itself toward the prey. Even after a few stops, the tiger beetle has enough time to overtake its prey during its high-speed pursuit. Results from Gilbert's laboratory observations have been published in a peer-reviewe...UF Researcher Designs Pill To Control Mosquitoes
...in the environment," Borovsky said. "The chlorella stops producing the hormone within three weeks." That's by design, Borovsky said. If the hormone were incorporated into the chlorella genome and chlorella continued to produce the hormone, making it omnipresent in the environment, mosquitoes could become r...Study: Device Prevents Epileptic Seizures, Doesn't Damage Hearts
...ree years, and no one knows for surehow the device stops seizures. Drugs most often prescribed for epilepsy include phenytoin,phenobarbital and carbamazepine, said Vaughn, who testified before the FDA panelthat recommended approving the stimulator. Others involved in the research at UNC-CH ...New Vaccine Blocks Viral Entry In Cattle, May Have Implications For Human Vaccines
...odies. How about a new type of vaccine -- one that stops dangerous viruses from even entering the body? Geoffrey Letchworth, a virologist in the Department of Animal Health and Biomedical Sciences, has developed such an experimental vaccine for bovine herpes virus 1 (BHV-1). When sprayed into a cow's nos...Bacterial Protein Structure Hints At Mechanism Of A Class Of Premature Aging Diseases
...n, called a replication termination protein(RTP), stops DNA replication in the bacterium Bacillus subtilis, a commonexperimental organism. Rather than simply acting as a roadblock to replication, as had beenpreviously thought, RTP is more like a one way door, allowing the DNA replicationmachinery to...Newly Discovered Gene Halts Cell Division and May Have Cancer Link
...ays to treat such tumors. "We think the MAD2 gene stops cells from dividing when doing so would leave the newly formed daughter cells without all the chromosomes they need to function properly," says Dr. Robert Benezra, an investigator in the Cell Biology and Genetics Program at Memorial Sloan-Kettering a...Mutate Or Die: New Polymerase Gives Desperate Yeast An Option
... link up unnaturally.The abnormality almost always stops other polymerases dead in their tracks, but zeta went past the dimer about 10percent of the time. "Ultraviolet damage to DNA is the process that leads to skin cancer," says Nelson."Sunlight is always causing DNA damage, and humans have a good s...