According to the Chinaview, researchers in France recently found that the pollutants of carbonic oxide in the air can make hearts of the healthy laboratory mice morphologically and functionally changed.
This study was carried out by the France State Science Research Centre and the Health and Medicine Research Institute. The two institutions jointly announced that before then there was also evidence that the pollutants of carbonic oxide in the city can cause deterioration of people who have the cardiac function problems, but the impact on healthy people has yet not got enough attention of the medical profession. For this reason, the laboratory mice have been studied by French scientists.
The researchers divided the healthy laboratory mice into two groups: the healthy laboratory mice of one of the two groups lived in clean air, while the healthy laboratory mice of the other group exposed to the air with carbonic oxide (the gas concentration is similar to some pollution of urban). After four week, the researchers made a “physical examination” on the laboratory mice. And the result showed that the laboratory mice exposed to the air with carbonic oxide have a variety of problems: firstly, the ventriculus sinister of their heart changed; secondly, their cardiac muscle cell developed degrees of disorders on the contractility and the rhythm of their heart beat; thirdly, the secretion of adrenaline of the laboratory mice went on to much higher levels, which may lead to some problems like cardiac hypertrophy, myocardial fibrosis and heart-pounding, and even can cause death; moreover, the NCX function of the cardiac muscle cells of the laboratory mice also appeared unusual.
At present, researchers are studying about the pathogenic condition and time limit of the pollutants of carbonic oxide. They pointed that, this test results may be believed to apply to humans. The above research has published on the new States Respiration and CCM Critical Care Medicine magazine.
The atmospheric pollutants in the air are including: smoke dust, Total Suspended Particulates (TSP), inhalable particles (PM10), nitrogen dioxide (NO2), sulfur dioxide (SO2), carbonic oxide (CO), ozone and volatile organic compound (VOC).
PM (particulate matter): Liquid and solid matter in the air, also called dust.
Sulfur oxide: Including sulfur dioxide (SO2), etc.
Oxycarbide: Is primarily including carbonic oxide (CO)
Nitric oxide: Is primarily including nitrogen dioxide (NO2), etc.
Carbureted hydrogen: Is primarily including methane and ethane.