What does this research mean for the field?

Proopiomelanocortin-related peptides are expressed at different developmental stages in the human embryo and fetus, with pituitary processing becoming similar to adult life by the beginning of the second trimester. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This research aims to investigate the expression of proopiomelanocortin-related peptides in human embryos and fetuses during development.

April 28, 2026

Ontogeny of pituitary beta-endorphin and related peptides in the human embryo and fetus.

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Authors

FFFabio FACCHINETTIUniversity of Modena and Reggio Emilia ASA.R. StorchiUniversity of Modena and Reggio Emilia FPF. Petraglia

Discussion

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Implication

Randomized trial evaluated proopiomelanocortin-related peptides in embryos and fetuses, indicating developmental expression patterns.

Key Points

This research aims to investigate the expression of proopiomelanocortin-related peptides in human embryos and fetuses during development.
Evaluated the presence of specific peptides in five embryos (5-10 weeks) and 11 fetal pituitaries (15-25 weeks).
Used high-performance liquid chromatography coupled with radioimmunoassays for detection.
Collected tissues from pregnancies, including ectopic and spontaneous abortions.
Beta-endorphin and beta-lipotropin were present from the seventh week of pregnancy; gamma-endorphin appeared in the second trimester.
Beta-lipotropin was predominant throughout embryonic and fetal life, with stable beta-endorphin levels despite rising gamma-endorphin concentrations.
By the second trimester, pituitary processing of proopiomelanocortin resembled that seen in adults.

Cite This Study

FACCHINETTI et al. (1987) studied this question.

synapsesocial.com/papers/69f04e7d727298f751e7258e https://doi.org/10.1016/0002-9378(87)90089-3

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Ontogeny of pituitary beta-endorphin and related peptides in the human embryo and fetus.

Discussion

Member takes

Implication

Key Points

Cite This Study

Ontogeny of pituitary beta-endorphin and related peptides in the human embryo and fetus.

Discussion

Member takes

Implication

Key Points

Cite This Study

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