Histones play a role in packaging DNA into nucleosomes, and they are the main protein in chromatin. In addition, gene expression can be regulated by histones. Genes that are silenced are bound very tightly to a lot of histones, while those that are active are not. Modifications to histones are referred to as the histone code.
Definition of bolshevism. 1 : the doctrine or program of the Bolsheviks advocating violent overthrow of capitalism.
Broken heart syndrome, also known as Takotsubo cardiomyopathy (TCM), is precipitated by some form of sudden acute stress in the body, either physical or emotional. Emotional stresses include tragic events such as a catastrophe, the loss of a loved one, a relationship breakup, or even happy events such as a wedding or a reunion.