Hydrogen sulfide is a deadly gad with rotten egg odor, but research confirmed that it has important physiological function in human body, this discovery will expedite a new way that cure heart disease and other diseases. As early as a few centuries ago, scientists had clearly known what harm would hydrogen sulfide cause to human body. Now gas has become a primary factor that cause occupational diseases.Spring’s Trendiest ugg classic cardy Hot Style
Our noses can smell the hydrogen sulfide with the 0.0047ppm density (1ppm is 1/1 million). Our breath will be controlled when the density increases into 500ppm. If the concentration gets to 800ppm, we will die in five minutes. But paradoxically, the human life can't be existence without hydrogen sulfide. Why people depend on this smelly gas? Let's look for the answer back to 250 million years ago. At that time, Permian era was going to close, a largest species extinction throughout history was showing, the prospect of lives on earth worry us.New ugg classic cardy Drift For Summer Vacation
A mainstream theory thinks that this catastrophe caused by the eruption of Siberian Voleanic, the carbon dioxide released from this process caused a series of environment changes, the oxygen content of the ocean down to a dangerous level, the life of the earth gradually slid into the abyss of the death. Believe it or not, ugg bailey button is My Mother's Favorite! For the aerobic marine life, it was a bad news that the chemical composition of the sea water changed following above mentioned, but in this environment, anaerobic life like green sulfur bacteria flourished quickly. Anaerobiont will release large amount of hydrogen sulfide after taking advantage, further changed the marine environment, and more detrimental to the majority of remaining aerobic organisms' existence. The above-mentioned extinction theory considered that this deadly gas spread into air from ocean, which threaten the existence of plants and animals on land. When the Permian era ended, 95% of the marine lives and 70% of the terrestial lives had extincted. The important function of the hydrogen sulfide for the process of human psychology may have been kept from the 0.25 billion years ago, because we maybe survive from this disaster only bear or even using the hydrogen sulfide on some circumstances.
Study confirmed that the human and rats' blood vessels will produce hydrogen sulfide, what function it has? In fact, the hydrogen sulfide is not the only known "poison gas" that work in human body. In the 80's of the 20th century, scientists had found some evidence which confirmed human body could create low concentration of nitric oxide(NO) as signal affectting molecules behavior. American pharmacologists once found that nitric oxide can expand blood vessels, regulate the immune system and transmits neural signals, etc. Another "silent killer", colorless, amd odorless, carbon monoxide (CO) also has similar functions
A burst of pungent odor coming from my room brought me to the front of vitrine when I came home after work finished. The treasure-troves of my family were collected in the vitrine including the Easter eggs made in a campus activity by my eldest daughter. One of the eggs was broken where came out the pungent odor. I start to doubt whether the organs and tissue also can produce the hydrogen sulfide with smelly egg. I put the study of NO and CO concentrates into the effects to the cardiovascular system from then on. My study on hydrogen sulfide began at here. Facts have proved that my decision is definitely correct: a series of experiments showed that hydrogen sulfide has important biological activity. Preliminary studies have confirmed that there is CSE enzyme in smooth muscle cells which can produce hydrogen sulfide. The experiment on mouse, cattle and human endothelial cells also showed that these cells will similarly integrate this enzyme. The amount of the enzyme are even more than the smooth muscle cells .