Vascular arrangement and ultrastructure of the European eelpout Zoarces viviparus ovary: implications for maternal-embryonic exchange.

Peter Vilhelm Skov; Thomas Flarup Sørensen; Hans Ramløv; John Fleng Steffensen

doi:10.1002/ar.20605

Vascular arrangement and ultrastructure of the European eelpout Zoarces viviparus ovary: implications for maternal-embryonic exchange.

Peter Vilhelm Skov, Thomas Flarup Sørensen, Hans Ramløv, John Fleng Steffensen

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

7 Citationer (Scopus)

Abstract

Udgivelsesdato: 2007-Dec

Originalsprog	Engelsk
Tidsskrift	Anatomical Record-Advances in Integrative Anatomy and Evolutionary Biology
Vol/bind	290
Udgave nummer	12
Sider (fra-til)	1500-7
Antal sider	7
ISSN	1932-8486
DOI	https://doi.org/10.1002/ar.20605
Status	Udgivet - 2007

Bibliografisk note

Keywords: Animals; Capillaries; Endoplasmic Reticulum; Female; Fishes; Golgi Apparatus; Keratins; Maternal-Fetal Exchange; Ovarian Follicle; Ovary; Oxygen; Pregnancy; Viviparity, Nonmammalian

Adgang til dokumentet

10.1002/ar.20605

Citationsformater

Vascular arrangement and ultrastructure of the European eelpout Zoarces viviparus ovary: implications for maternal-embryonic exchange. / Skov, Peter Vilhelm; Sørensen, Thomas Flarup; Ramløv, Hans et al.
I: Anatomical Record-Advances in Integrative Anatomy and Evolutionary Biology, Bind 290, Nr. 12, 2007, s. 1500-7.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

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title = "Vascular arrangement and ultrastructure of the European eelpout Zoarces viviparus ovary: implications for maternal-embryonic exchange.",

abstract = "The structural basis for exchange between maternal serum and ovarian fluid in the viviparous teleost Zoarces viviparus was investigated. Casts of the ovarian vasculature showed that blood supply to the ovary is initially directed to the follicular appendages lining the ovarian wall through thick-walled muscular arteries running along the ovary wall and within the follicular appendages. The follicles had a rich capillary network with diffusion distances between maternal blood and ovarian fluid comparable to those found for gill epithelia, suggesting this is the primary site of gas exchange between maternal plasma and ovarian fluid. Follicular capillary beds were continuous with those in the ovary wall and were eventually drained by the ovarian and intestinal venous systems. The barrier between ovarian fluid and maternal blood consisted of the endothelial cells of the maternal blood vessels and a layer of epithelial cells lining the ovarian lumen, with an intermittent layer of loose connective fibers. Junctional complexes between cells were predominantly anchoring junctions with the occurrence of occasional occluding junctions, supporting the possibility of paracellular transport from maternal serum to ovarian fluid of small molecular weight compounds. Heavy investment in keratin filaments suggests that follicles are tissues of high structural integrity. Evidence for protein synthesis in the ovarian lining was found in the form of Golgi apparatus and rough endoplasmic reticulum. Although numerous cytoplasmic vacuoles and secretory granules were present in both epithelial and endothelial cells, the fate of synthesized protein remains to be determined.",

author = "Skov, {Peter Vilhelm} and S{\o}rensen, {Thomas Flarup} and Hans Raml{\o}v and Steffensen, {John Fleng}",

note = "Keywords: Animals; Capillaries; Endoplasmic Reticulum; Female; Fishes; Golgi Apparatus; Keratins; Maternal-Fetal Exchange; Ovarian Follicle; Ovary; Oxygen; Pregnancy; Viviparity, Nonmammalian",

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AU - Sørensen, Thomas Flarup

AU - Ramløv, Hans

AU - Steffensen, John Fleng

N1 - Keywords: Animals; Capillaries; Endoplasmic Reticulum; Female; Fishes; Golgi Apparatus; Keratins; Maternal-Fetal Exchange; Ovarian Follicle; Ovary; Oxygen; Pregnancy; Viviparity, Nonmammalian

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N2 - The structural basis for exchange between maternal serum and ovarian fluid in the viviparous teleost Zoarces viviparus was investigated. Casts of the ovarian vasculature showed that blood supply to the ovary is initially directed to the follicular appendages lining the ovarian wall through thick-walled muscular arteries running along the ovary wall and within the follicular appendages. The follicles had a rich capillary network with diffusion distances between maternal blood and ovarian fluid comparable to those found for gill epithelia, suggesting this is the primary site of gas exchange between maternal plasma and ovarian fluid. Follicular capillary beds were continuous with those in the ovary wall and were eventually drained by the ovarian and intestinal venous systems. The barrier between ovarian fluid and maternal blood consisted of the endothelial cells of the maternal blood vessels and a layer of epithelial cells lining the ovarian lumen, with an intermittent layer of loose connective fibers. Junctional complexes between cells were predominantly anchoring junctions with the occurrence of occasional occluding junctions, supporting the possibility of paracellular transport from maternal serum to ovarian fluid of small molecular weight compounds. Heavy investment in keratin filaments suggests that follicles are tissues of high structural integrity. Evidence for protein synthesis in the ovarian lining was found in the form of Golgi apparatus and rough endoplasmic reticulum. Although numerous cytoplasmic vacuoles and secretory granules were present in both epithelial and endothelial cells, the fate of synthesized protein remains to be determined.

AB - The structural basis for exchange between maternal serum and ovarian fluid in the viviparous teleost Zoarces viviparus was investigated. Casts of the ovarian vasculature showed that blood supply to the ovary is initially directed to the follicular appendages lining the ovarian wall through thick-walled muscular arteries running along the ovary wall and within the follicular appendages. The follicles had a rich capillary network with diffusion distances between maternal blood and ovarian fluid comparable to those found for gill epithelia, suggesting this is the primary site of gas exchange between maternal plasma and ovarian fluid. Follicular capillary beds were continuous with those in the ovary wall and were eventually drained by the ovarian and intestinal venous systems. The barrier between ovarian fluid and maternal blood consisted of the endothelial cells of the maternal blood vessels and a layer of epithelial cells lining the ovarian lumen, with an intermittent layer of loose connective fibers. Junctional complexes between cells were predominantly anchoring junctions with the occurrence of occasional occluding junctions, supporting the possibility of paracellular transport from maternal serum to ovarian fluid of small molecular weight compounds. Heavy investment in keratin filaments suggests that follicles are tissues of high structural integrity. Evidence for protein synthesis in the ovarian lining was found in the form of Golgi apparatus and rough endoplasmic reticulum. Although numerous cytoplasmic vacuoles and secretory granules were present in both epithelial and endothelial cells, the fate of synthesized protein remains to be determined.

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