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No evidence of adverse fertility and pregnancy outcomes in patients with unrecognised and untreated multiple endocrine neoplasia type 1

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journal contribution
posted on 2023-05-19, 22:18 authored by Michael Thompson, John BurgessJohn Burgess

Objective: Literature concerning the impact of Multiple Endocrine Neoplasia Type 1 (MEN 1) on fertility is limited to case reports despite the early onset of endocrinopathies, such as primary hyperparathyroidism and prolactinoma, that may impact fertility. This study describes the impact of unrecognised and untreated MEN 1 on fertility and pregnancy outcomes in a multigenerational cohort of the Tasman 1 MEN 1 kindred.

Methods: All MEN 1 positive (MEN 1+, n=63) and MEN 1 negative (MEN 1, n=75) descendants born between 1825 and 1951 of a common founder. Review of birth, death, marriage and medical records provided data on date of birth and death, gender, MEN 1 status and the number of pregnancies and children per parent.

Results: Compared to MEN 1parents, MEN 1+ parents had more children (RR 1.30, 1.02‐1.66) and live births (RR 1.31, 1.02‐1.67) with no excess of stillbirths (RR 1.24, 0.24‐6.36). Compared to the era‐matched Tasmanian fertility rate, MEN 1+ parents had more children (4.87±4.11 vs 3.40±0.61, p=0.048), whereas MEN 1 parents had similar numbers of children (3.67±3.27 vs 3.36±0.62, p=0.55). MEN 1+ parents had a similar number of MEN 1+ and MEN 1offspring (2.1±1.9 vs 2.5±2.3, p=0.31). Indirectly assessed miscarriage rate was similar between MEN 1+ and MEN 1‐ mothers (p=0.77). Clinically overt pituitary disease reduced MEN 1+ kindred member likelihood of parenthood (33% vs 97%).

Conclusions: There was no adverse impact of MEN 1 on patient fertility overall, however MEN 1related pathology may have impaired the reproductive potential of a subset of individuals with pituitary disease.


Publication title

Clinical Endocrinology






Tasmanian School of Medicine


Blackwell Publishing Ltd

Place of publication

9600 Garsington Rd, Oxford, England, Oxon, Ox4 2Dg

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© 2018 John Wiley & Sons Ltd.

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Clinical health not elsewhere classified

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