A brain chemical that battles despair
...posure to inescapable stress tends to increase the lag time for mice to escape subsequent shocks, when they are given the chance to escape. Measuring this lag time, or the complete failure to escape, gave the researchers a measure of "behavioral despair." Thi...Banding together: RAS signaling of circadian output
... has contributed to understanding the basis of jet lag as well as some affective disorders. While the band mutation has facilitated Neurospora clock observation, researchers are only now realizing what protein is encoded by the band gene, and how the subtle nature of the disruption in the band gene aff...Lung and bladder cancer deaths continue decades after arsenic exposure
...es higher in men and 14 times higher in women. The lag time between exposure to a carcinogen and the peak of cancer deaths is usually difficult to determine, but the size of the study and the record of arsenic exposure aided the researchers. The impact of arsenic in drinking water on this large popula...Jet lag: It's all about chemical reactions in cells
...has flown through several time zones knows the jet lag that can result when this timing is disrupted. Now, new research by Cornell and Dartmouth researchers explains the biological mechanism behind how circadian clocks sense light through a process that transfers energy from light to chemical reactions i...Researchers figure out what makes a simple biological clock tick
... biochemical processes. A traveler experiences jet lag when his or her internal clock becomes out of synch with the environment. Seasonal Affective Disorder, some types of depression, sleep disorders and problems adjusting to changes in work cycles all can occur when an individual's biological clock acts...Protecting US crops from terrorist attack to be discussed at 2007 AAAS Annual Meeting
...th little surveillance over widespread areas, long lag times may occur between pathogen introduction and detection," Fletcher said. "If plant pathogens are used as weapons, we could see reductions in crop yield and quality, increases in production costs and food prices, lost markets and trade embargoes, ...Animal studies in the land of the midnight sun illuminate biological clocks
... solve problems -- such as shift-work fatigue, jet lag and even seasonal affective disorder -- that are associated with disruptions of biological clocks. One scientist who has spent a lifetime pursuing these questions and finding answers that have helped build the field of biological clock research is ...Central and peripheral signals set the circadian liver clock
Anyone who has experienced jet lag will understand the importance of a smooth-running circadian clock. Crossing time zones decouples our biological rhythms from the natural cycle of light and dark were used to. We perceive light cues through retinal photoreceptors that relay signals t...Gene that makes people 'early to bed and early to rise' demystified
...k in those suffering from conditions including jet lag or shift work sleep disorder, according to the res...s, the researchers said. Someday "people with jet lag or shift work--some of the most common of sleep disorders--might take a pill and be back to normal a...Researchers find biological clock for smell in mice
...en these clocks is bad for our health, like in jet lag or shift work."...Chronic jet-lag conditions hasten death in aged mice
...--similar to those that humans experience with jet lag or rotating shift work--experienced significantly ...rs were led to examine a possible link between jet lag and mortality by something they had noticed in an earlier, unrelated study: A surprising fraction of......rgery or a heart attack, the team found there is a lag phase where the supply of ATP drops before mitochondrial production starts again, potentially preventing the heart from beating properly. The researchers made use of a protein called luciferase, which is normally found in the tails of firefly and is...Salivary melatonin may decrease periodontal disease severity according to new study findings
...onin supplements are commonly promoted to ease jet lag and hasten sleep. "Patients with higher salivary and melatonin ratios had lower community periodontal index (CPI). CPI is the score used to assess periodontal status," said Pablo Galindo, DDS, Department of Oral Surgery, School of Dentistry, Univer...Arctic nations' wealth key to management of climate change
... change. "There is a long, perhaps 50-year, time lag between implementation of reduced greenhouse gas emissions and a large change in greenhouse gas concentrations in the atmosphere, so reducing greenhouse gas emissions is important but insufficient. We will also need to deal with the consequences of t...Genes linked to daily flux in drug toxicity
...an component," Schibler said. "People think of jet lag as a sleep disturbance, when that may be the least of the problem," he added. "All of your organs--from the gastrointestinal system to liver enzymes, for example--depend on clocks." Circadian rhythms control rest-activity cycles, heartbeat frequenc...Cincinnati surgeon leads first test of mobile robotic surgery
...r ultimate goal is to eliminate the communications lag to enable the surgeon to safely operate on a remote patient in real time." HAPsMRT utilizes low-latency communication transmissions, so the communication signals travel over a shorter distance and with fewer delays. In phase one of the mission, a ...Award supports Virginia Tech research to reduce vehicle emissions, create biofuel
...important biological processes in nature, and also lag the development of lignocellulose pretreatment and cellulase improvement," Zhang said. His new research, in collaboration with Mike Himmel at the National Renewable Energy Laboratory and Jonathan Mielenz at ORNL, Zhang will develop a new nano-scale...Alaska seal pup diet may hold key to decline of population
...of which diet group they were put in, continued to lag behind in weight gain and even lost blubber depth. "Our longitudinal study is leading to a better understanding of the role that fat consumption plays in the life of the harbor seal and could tie the declining population of seals and other marine mam...Purdue project could help pets serve as disease watchdogs
...idence of Lyme disease in humans, with a two-month lag and peak rates occurring during warmer months. This information allows veterinarians to anticipate unusual occurrences of diseases that are transmitted from animals to humans and design treatment methods. Public health officials also could be alerted...Research leads to healthful strategies for re-setting the body's clock
...s for people who work swing shifts, experience jet lag or take anti-depressants. Glass, known internationally as the first researcher to measure serotonin release from the brain's biological clock region, has become the first to extract, identify and measure a neuropeptide crucial to the regulation of t...