Reproductive Life Events of Twins with Opposite Sex

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Published Feb 15, 2018
DOI: https://doi.org/10.18103/mra.v6i2.1681

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Main Article Content

Shayesteh Jahanfar
Central Michigan University, USA

Abstract

Introduction: It is hypothesized that androgens are transferred between fetuses across membranes, and have shown that female fetuses in female-male twin pairs have higher concentrations of serum testosterone than female fetuses in female-female pairs.  The question is whether or not this hormonal transfer has any impact on adult reproductive life events.


Objective: The study objective was to test the hypothesis that females from female-female twins and females from female-male twins differ with respect to reproductive life events.


Design and method:  We conducted a cross sectional study using volunteer female twins aged 15 and above from two settings of Malaysian and Iranian twin registries.


Result: Female-female twins had a higher frequency of congenital abnormality and hirsutism than male-female twins. Other reproductive events were not found to be statistically significantly different between the two groups.


Conclusion: Our study was distinctive in comparing specific reproductive events among females from female-male twins compared with female-female twins.  Our results indicates that hormonal transition from male to female in a female-male gestation cannot be a valid explanation for reproductive ill health during adulthood. 

Article Details

How to Cite
JAHANFAR, Shayesteh. Reproductive Life Events of Twins with Opposite Sex. Medical Research Archives, [S.l.], v. 6, n. 2, feb. 2018. ISSN 2375-1924. Available at: <https://esmed.org/MRA/mra/article/view/1681>. Date accessed: 23 nov. 2024. doi: https://doi.org/10.18103/mra.v6i2.1681.
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Issue
Vol 6 No 2 (2018): Vol.6 Issue 2 February 2018
Section
Research Articles

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