Endometrial thickness is not independent of luteal phase day in a rural Polish population
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- CLANCY KATHRYN B.H.
- Department of Anthropology, University of Illinois, Urbana
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- ELLISON PETER T.
- Department of Anthropology, Harvard University, Cambridge
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- JASIENSKA GRAZYNA
- Department of Epidemiology and Population Studies, Jagiellonian University, Crzegorzecka
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- BRIBIESCAS RICHARD G.
- Department of Anthropology, Yale University, New Haven
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The endometrium is important for luteal phase function, implantation, placentation, and gestation. Endometrial morphology has been shown to impact early pregnancy success in in vitro fertilization and egg donor cycles and has been implicated in conception success in spontaneous cycles. However, few studies have monitored endometrial morphology in normo-ovulatory women or examined possible population variation in its physiology or thickness. Further, the methodology of most studies of the endometrium is to take a single measurement close to ovulation, meaning the endometrium is not often measured during the window of implantation; the assumption has been that an individual’s endometrial thickness (ET) is consistent through the luteal phase. Therefore, we have tested the hypothesis that ET is independent of luteal phase day in a study of urban-dwelling US and rural Polish women. We found that ET is not independent of luteal phase day in this sample of rural Polish women: ET is negatively associated with cycle day (P = 0.03). Compared to the US sample, the Polish sample also had a significantly later age at menarche (P = 0.002), lower midluteal progesterone concentrations (P = 0.0006), lower C-peptide concentrations (P = 0.0003), and higher energy expenditure (P = 0.03), suggesting greater energetic constraint. The relationship between ET and luteal phase length highlights the need to measure the endometrium serially over the menstrual cycle in order to better document inter- and intra-population variation in reproductive function.<br>
収録刊行物
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- Anthropological Science
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Anthropological Science 117 (3), 157-163, 2009
一班社団法人 日本人類学会
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詳細情報 詳細情報について
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- CRID
- 1390282679287217280
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- NII論文ID
- 10029567544
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- NII書誌ID
- AA11307827
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- ISSN
- 13488570
- 09187960
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- NDL書誌ID
- 10496592
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可