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China Weighs Options in Battling Smog-Forming Emissions - Watch List News (press release)

China Weighs Options in Battling Smog-Forming Emissions
Watch List News (press release)
Dangerous air pollution is starting to hinder tourism and other business, forcing China's new leadership to consider curbing emissions.
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Epigenetics raises the possibility that a smoker can cause grandchildren to get asthma via genetics

Epigenetics raises the possibility that a smoker can cause grandchildren to get asthma via genetics | air pollution | Scoop.it

The adverse health effects of smoking can be passed down through multiple generations, according to new experiments conducted at the Los Angeles Biomedical Research Institute. In one experiment, pregnant rats were given nicotine injections that produced asthma in their offspring. What surprised researchers is that third-generation rats (the grandchildren of the smoker rats) also developed asthma. "Nicotine is not only affecting lung cells, [say researchers], but also affecting sex cells in ways that cause the lungs which ultimately develop from those cells to express their genes in the same abnormal ways."

 

Some biologists are highly skeptical of the recent findings because they appear to run contrary to Darwin's theory of evolution. The suggestion that learned traits, such as a smoking addiction, can be passed down genetically to future generations was initially a theory put forth by the French naturalist Jean-Baptiste Lamarck that rivaled Darwin's evolution. Today, genetic inheritances of learned traits are known as epigenetic changes, a term that refers to the regulation of gene expression by the chemical modification of DNA, or of the histone proteins in which DNA is usually wrapped. 


Via Dr. Stefan Gruenwald
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Do Plants Respond to Pain?

Do Plants Respond to Pain? | air pollution | Scoop.it
Scientists conduct a plant experiment that may make you rethink those veggie burgers.
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