Latest Hydrogen sulfide Stories

It stinks and strikes fear in the hearts of those who work underground, but the toxic gas hydrogen sulfide may be a lifesaver for patients with heart failure.In a recent study, low concentrations of hydrogen sulfide gas improved functioning in the hearts of mice with heart failure. After heart failure was induced in mice, the gas was administered intravenously once a day for a week. Four weeks after the heart failure event, mice treated with hydrogen sulfide had about a one-third higher...

US researchers say the gas best known for being used in many stink bombs may also control blood pressure.The foul odor of flatulence is due to small amounts of hydrogen sulphide - a toxic gas generated by bacteria living in the human gut.But researchers say the gas is also produced by an enzyme in blood vessels that relaxes them and lowers blood pressure.The Science journal reported that the findings in mice might lead to new treatments for high blood pressure.The gas is produced in the cells...

RAE Systems Inc. (AMEX: RAE), a leader in delivering innovative sensor solutions to serve industrial, energy, environmental, and government safety markets worldwide, introduced MeshGuard(TM) a rugged single-sensor, battery-powered toxic gas detector integrated with a wireless mesh radio modem for detecting hazardous levels of hydrogen sulfide (H2S) or carbon monoxide (CO). The monitoring units are designed to operate in the full temperature range of -40 degrees to 122 degrees F or -40 degrees...

By Schiffman, Susan S Graham, Brevick G; Williams, C Mike ABSTRACT The effectiveness of 18 alternative technologies for reducing odor dispersion at and beyond the boundary of swine facilities was assessed in conjunction with an initiative sponsored through agreements between the Attorney General of North Carolina and Smithfield Foods, Premium Standard Farms, and Frontline Farmers. The trajectory and spatial distribution of odor emitted at each facility were modeled at 200 and 400 m downwind...

U.S. scientists say they've found a tiny amount of inhaled or intravenous hydrogen sulfide greatly improves the survival of rats with extreme blood loss. Fred Hutchinson Cancer Research Center researchers said they used hydrogen sulfide to induce a state of reversible metabolic hibernation as a way to reduce death from insufficient blood supply to organs and tissues in a rat model of lethal hemorrhage. The study determined 75 percent of rats given inhaled hydrogen sulfide and 67 percent of...

SEATTLE, July 1 /PRNewswire/ -- For the first time, researchers have demonstrated that the administration of minute amounts of inhaled or intravenous hydrogen sulfide, or H2S -- the molecule that gives rotten eggs their sulfurous stench -- significantly improves survival from extreme blood loss in rats. Cell biologist Mark B. Roth, Ph.D., and colleagues in the Basic Sciences Division of Fred Hutchinson Cancer Research Center, in collaboration with surgeon Robert K. Winn, Ph.D., and...

By Keith Gushard, The Meadville Tribune, Pa. Jun. 21--The headaches were deja vu for Rich Dodge. "I came home from work and started not feeling good again," Dodge said Friday night as he stood outside his Lord Street residence. The mysterious rotten egg stench was back. Dodge was one of dozens of Meadville residents affected Friday night by the stench -- hydrogen sulfide -- swirling out of sanitary sewers in the area bounded by Baldwin, Terrace and Spring streets and Glenwood Avenue....

A large dairy in northwestern Minnesota with odors severe enough to drive nearby residents from their homes last week now faces legal problems. State Attorney General Lori Swanson and the Minnesota Pollution Control Agency (MPCA) jointly sued Excel Dairy on Friday, charging that the 1,500-cow operation just north of Thief River Falls has repeatedly violated air quality standards, environmental protection laws and feedlot operating permits. State health officials advised several neighbors of...

Science fiction usually sticks hibernating spaceflyers in glowing capsules of goo, but a real-life ingredient for suspended animation may not be too far off, scientists say. Hydrogen sulfide is the key stinky compound in rotting eggs and swamp gas. New research shows it can slow down a mouse's metabolism, or the consumption of oxygen, without dampening the flow of blood. "A little hydrogen sulfide gas is a way to reversibly and, apparently, safely cut metabolism...

Heart rate and metabolism drop, while blood pressure and oxygen levels maintainedLow doses of the toxic gas responsible for the unpleasant odor of rotten eggs can safely and reversibly depress both metabolism and aspects of cardiovascular function in mice, producing a suspended-animation-like state. In the April 2008 issue of the journal Anesthesiology, Massachusetts General Hospital (MGH) researchers report that effects seen in earlier studies of hydrogen sulfide do not depend on a reduction...