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nature : the body of their endogenous a category with morphine-like peptide-like substances role. Yes endogenous (endogenous) and morphine (morphine) acronyms. Endorphin may include alpha-endorphin, beta-endorphin, and gamma-endorphin, methionine - enkephalin, leucine - enkephalin, dynorphin A, and dynorphin B, have strong morphine-like activity. Met-enkephalin the amino acid sequence of tyrosine - Gly - Gly-phenylalanine-methionine. Leu - enkephalin fifth amino acid methionine but not leucine. Α, β, γ - endorphin peptide were 11, 31 peptides, peptide 18, the former five and methionine amino acid sequence-enkephalin in the same five peptide. These peptides have a strong physiological function. To intraventricular injection animals endorphin, the depth can cause loss of body pain, body temperature dropped, behavior becomes irritation. To impose further morphine antagonist naloxone (naloxone), no longer feel the pain of these stolen. Endorphin induced behavior suggests that these peptides may be involved in the emotional response to the regulatory role.
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