The mu-opioid receptor and the evolution of mother-infant attachment: theoretical comment on Higham et al. (2011)
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Genetic variation at a single nucleotide polymorphism (SNP) in the mu-opioid receptor gene (OPRM1) of both humans and rhesus macaques Macaca mulatta has been associated with differential affinity to the endogenous ligand beta-endorphin as well as alterations i... ...
