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"Thirdhand smoke is harmful to our genetic material," Bo Hang, a scientist at the Lawrence Berkeley National Laboratory in California, said at a news conference this week at the annual meeting of the American Chemical Society, where the research was presented

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Harmine at high doses increased the BDNF (Brain-derived neurotrophic factor) protein level, which is decreased in depressive conditions, while imipramine, a common anti-depression drug, had no such effect.[25] Farzin et al