human chorionic somatomammotropin


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hu·man pla·cen·tal lac·to·gen (HPL),

lactogen isolated from human placentas and structurally similar to somatotropin; its biologic activity weakly mimics that of somatotropin and prolactin; secreted into maternal circulation; a deficiency of HPL during pregnancy leads to children who undergo abnormal intrauterine and postnatal growth.
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