Relationship between the appearance of preantral follicles in the fetal ovary of Antarctic minke whales ( Balaenoptera bonaerensis ) and hormone concentrations in the fetal heart, umbilical cord and maternal blood
The present study aimed to determine the relationship among changes in the number of preantral follicles and concentrations of follicle-stimulating hormone (FSH), luteinizing hormone (LH), progesterone (P 4 ), androstenedione (A) and estradiol-17β (E 2 ) in the fetal heart, umbilical cord and matern...
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Cambridge University Press (CUP)
2004
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Online Access: | http://dx.doi.org/10.1017/s0967199404002655 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0967199404002655 |
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crcambridgeupr:10.1017/s0967199404002655 2023-05-15T14:12:53+02:00 Relationship between the appearance of preantral follicles in the fetal ovary of Antarctic minke whales ( Balaenoptera bonaerensis ) and hormone concentrations in the fetal heart, umbilical cord and maternal blood Muranishi, Yuki Sasaki, Motoki Hayashi, Kengo Abe, Norihito Fujihira, Takuma Ishikawa, Hajime Ohsumi, Seiji Miyamoto, Aiko Fukui, Yutaka 2004 http://dx.doi.org/10.1017/s0967199404002655 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0967199404002655 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Zygote volume 12, issue 2, page 125-132 ISSN 0967-1994 1469-8730 Cell Biology Developmental Biology journal-article 2004 crcambridgeupr https://doi.org/10.1017/s0967199404002655 2022-04-07T08:55:54Z The present study aimed to determine the relationship among changes in the number of preantral follicles and concentrations of follicle-stimulating hormone (FSH), luteinizing hormone (LH), progesterone (P 4 ), androstenedione (A) and estradiol-17β (E 2 ) in the fetal heart, umbilical cord and maternal blood. Primordial follicles had already appeared in a 20 cm fetus and primary follicles were observed in a 50 cm fetus. In a 70 cm fetus, the number of primordial and primary follicles increased rapidly and secondary follicles were present. The concentrations of LH and FSH did not change between 20 cm and 160 cm in fetal length. When the fetal length became >70 cm, serum levels in the fetus, umbilical cord and mothers, and E 2 levels in umbilical cord increased synchronously ( p <0.05). These results showed increases in the number of preantral follicles in the Antarctic minke whale fetal ovary along with fetal growth during the early gestation period. These findings suggest that the change in preantral follicles was associated with changes in the concentration of steroids in early gestation periods. The changes in steroid concentrations in the fetal and umbilical cord blood and the increased number of preantral follicles were coincident at around 70 cm in fetal length, whereas the growth and differentiation of primordial and primary follicles appeared to be independent of FSH and LH. Article in Journal/Newspaper Antarc* Antarctic Antarctic Minke whale Balaenoptera bonaerensis minke whale Cambridge University Press (via Crossref) Antarctic The Antarctic Zygote 12 2 125 132 |
institution |
Open Polar |
collection |
Cambridge University Press (via Crossref) |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Cell Biology Developmental Biology |
spellingShingle |
Cell Biology Developmental Biology Muranishi, Yuki Sasaki, Motoki Hayashi, Kengo Abe, Norihito Fujihira, Takuma Ishikawa, Hajime Ohsumi, Seiji Miyamoto, Aiko Fukui, Yutaka Relationship between the appearance of preantral follicles in the fetal ovary of Antarctic minke whales ( Balaenoptera bonaerensis ) and hormone concentrations in the fetal heart, umbilical cord and maternal blood |
topic_facet |
Cell Biology Developmental Biology |
description |
The present study aimed to determine the relationship among changes in the number of preantral follicles and concentrations of follicle-stimulating hormone (FSH), luteinizing hormone (LH), progesterone (P 4 ), androstenedione (A) and estradiol-17β (E 2 ) in the fetal heart, umbilical cord and maternal blood. Primordial follicles had already appeared in a 20 cm fetus and primary follicles were observed in a 50 cm fetus. In a 70 cm fetus, the number of primordial and primary follicles increased rapidly and secondary follicles were present. The concentrations of LH and FSH did not change between 20 cm and 160 cm in fetal length. When the fetal length became >70 cm, serum levels in the fetus, umbilical cord and mothers, and E 2 levels in umbilical cord increased synchronously ( p <0.05). These results showed increases in the number of preantral follicles in the Antarctic minke whale fetal ovary along with fetal growth during the early gestation period. These findings suggest that the change in preantral follicles was associated with changes in the concentration of steroids in early gestation periods. The changes in steroid concentrations in the fetal and umbilical cord blood and the increased number of preantral follicles were coincident at around 70 cm in fetal length, whereas the growth and differentiation of primordial and primary follicles appeared to be independent of FSH and LH. |
format |
Article in Journal/Newspaper |
author |
Muranishi, Yuki Sasaki, Motoki Hayashi, Kengo Abe, Norihito Fujihira, Takuma Ishikawa, Hajime Ohsumi, Seiji Miyamoto, Aiko Fukui, Yutaka |
author_facet |
Muranishi, Yuki Sasaki, Motoki Hayashi, Kengo Abe, Norihito Fujihira, Takuma Ishikawa, Hajime Ohsumi, Seiji Miyamoto, Aiko Fukui, Yutaka |
author_sort |
Muranishi, Yuki |
title |
Relationship between the appearance of preantral follicles in the fetal ovary of Antarctic minke whales ( Balaenoptera bonaerensis ) and hormone concentrations in the fetal heart, umbilical cord and maternal blood |
title_short |
Relationship between the appearance of preantral follicles in the fetal ovary of Antarctic minke whales ( Balaenoptera bonaerensis ) and hormone concentrations in the fetal heart, umbilical cord and maternal blood |
title_full |
Relationship between the appearance of preantral follicles in the fetal ovary of Antarctic minke whales ( Balaenoptera bonaerensis ) and hormone concentrations in the fetal heart, umbilical cord and maternal blood |
title_fullStr |
Relationship between the appearance of preantral follicles in the fetal ovary of Antarctic minke whales ( Balaenoptera bonaerensis ) and hormone concentrations in the fetal heart, umbilical cord and maternal blood |
title_full_unstemmed |
Relationship between the appearance of preantral follicles in the fetal ovary of Antarctic minke whales ( Balaenoptera bonaerensis ) and hormone concentrations in the fetal heart, umbilical cord and maternal blood |
title_sort |
relationship between the appearance of preantral follicles in the fetal ovary of antarctic minke whales ( balaenoptera bonaerensis ) and hormone concentrations in the fetal heart, umbilical cord and maternal blood |
publisher |
Cambridge University Press (CUP) |
publishDate |
2004 |
url |
http://dx.doi.org/10.1017/s0967199404002655 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0967199404002655 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctic Minke whale Balaenoptera bonaerensis minke whale |
genre_facet |
Antarc* Antarctic Antarctic Minke whale Balaenoptera bonaerensis minke whale |
op_source |
Zygote volume 12, issue 2, page 125-132 ISSN 0967-1994 1469-8730 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0967199404002655 |
container_title |
Zygote |
container_volume |
12 |
container_issue |
2 |
container_start_page |
125 |
op_container_end_page |
132 |
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1766285254528598016 |