The best speakers to use would be between 6-8 ohms and would need to connect to the speaker terminals of the receiver. The TXNR 636 cannot handle a 4 ohm speaker load.
Report Abuse. Yes, Histamine is a hormone. It's an amine secreted by the brain and stored in a number of cells (e.g., mast cells, basophils, enterochromaffin cells).Normally, there is a low level of histamine circulating in the body. However, the release of histamine can be triggered by an event such as a mosquito bite.
Chemistry and Pharmacokinetics. The formation of histamine occurs by the removal of a carboxyl group (decarboxylation) from amino acid L-histidine. One of the important issues associated with formation of a biologically active compound is the mechanism that accounts for the compounds inactivation. Histamine is active biologically, but the first step for its inactivation involves the addition of a methyl group (CH3) followed by a chemical oxidation.