Beta-endorphin-like and alpha-MSH-like immunoreactivities in human milk.
We measured with radioimmunoassay the beta-endorphin-like and alpha-MSH-like immunoreactivities in milk and plasma of 8 lactating women. Mean beta-endorphin concentrations ( +/- SD) were 16.6 +/- 6.7 fmol/ml in milk and 9.9 +/- 4.1 fmol/ml in plasma. alpha-MSH concentrations (mean +/- SD) were 39.4 +/- 15.5 pg/ml in milk and 18.2 +/- 8.4 pg/ml in plasma. The concentrations of both peptides in milk were significantly (p less than 0.05) higher than in plasma. No significant correlation between milk and plasma concentrations of these peptides was found.
Ferrando
T
T
Department of Pediatrics, University of Turin, Italy.
Rainero
I
I
De Gennaro
T
T
Oggero
R
R
Mostert
M
M
Dattola
P
P
Pinessi
L
L
D000328:Adult; D005260:Female; D006801:Humans; D007158:Immunologic Techniques; D008895:Milk, Human / Q000032:analysis*; D011247:Pregnancy; D000521:alpha-MSH / Q000032:analysis*; D001615:beta-Endorphin / Q000032:analysis*
D000521:alpha-MSH; D001615:beta-Endorphin