Morphological classification of bovine ovarian follicles
Follicle classification is an important aid to the understanding of follicular development and atresia. Some bovine primordial follicles have the classical primordial shape, but ellipsoidal shaped follicles with some cuboidal granulosa cells at the poles are far more common. Preantral follicles have...
Gespeichert in:
| Veröffentlicht in: | Reproduction (Cambridge, England) England), 2010-02, Vol.139 (2), p.309-318 |
|---|---|
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 318 |
|---|---|
| container_issue | 2 |
| container_start_page | 309 |
| container_title | Reproduction (Cambridge, England) |
| container_volume | 139 |
| creator | Rodgers, R J Irving-Rodgers, H F |
| description | Follicle classification is an important aid to the understanding of follicular development and atresia. Some bovine primordial follicles have the classical primordial shape, but ellipsoidal shaped follicles with some cuboidal granulosa cells at the poles are far more common. Preantral follicles have one of two basal lamina phenotypes, either a single aligned layer or one with additional layers. In antral follicles 5 mm, only aligned/rounded phenotypes are present. Dominant and subordinate follicles can be identified by ultrasound and/or histological examination of pairs of ovaries. Atretic follicles 5 mm, only antral atresia is observed. The concentrations of follicular fluid steroid hormones can be used to classify atresia and distinguish some of the different types of atresia; however, this method is unlikely to identify follicles early in atresia, and hence misclassify them as healthy. Other biochemical and histological methods can be used, but since cell death is a part of normal homoeostatis, deciding when a follicle has entered atresia remains somewhat subjective. |
| doi_str_mv | 10.1530/REP-09-0177 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_734256817</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>734256817</sourcerecordid><originalsourceid>FETCH-LOGICAL-b508t-b264942e9aa4dd9224d5732caadb9742963b172da707e11be24fe4339c80f9893</originalsourceid><addsrcrecordid>eNp9kEtLAzEURoMotlZX7nV2LmQ0r5lMllLqAyqK2nXIZJI2kk5q0lb896ZORXHh6l645_u4HACOEbxABYGXT6PHHPIcIsZ2QB8xinJWcb6bdspgjkpc9sBBjK8QoqJi5T7oIc6qkkLYB9W9D4uZd35qlXSZcjJGa9K-tL7NvMlqv7atzvxaBivbzHjnrHI6HoI9I13UR9s5AJPr0cvwNh8_3NwNr8Z5XcBqmde4pJxizaWkTcMxpk3BCFZSNjVnFPOS1IjhRjLINEK1xtRoSghXFTS84mQAzrreRfBvKx2XYm6j0s7JVvtVFIxQXJQVYok870gVfIxBG7EIdi7Dh0BQbEyJZEpALjamEn2y7V3Vc938sFs1CcAdMLPT2bsNWtTWR2V1u_wS9Lv1238KnXYhI72Q02CjmDxjiEi6claQDYE64k_bf79-AuIWjI0</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>734256817</pqid></control><display><type>article</type><title>Morphological classification of bovine ovarian follicles</title><source>MEDLINE</source><source>Alma/SFX Local Collection</source><creator>Rodgers, R J ; Irving-Rodgers, H F</creator><creatorcontrib>Rodgers, R J ; Irving-Rodgers, H F</creatorcontrib><description>Follicle classification is an important aid to the understanding of follicular development and atresia. Some bovine primordial follicles have the classical primordial shape, but ellipsoidal shaped follicles with some cuboidal granulosa cells at the poles are far more common. Preantral follicles have one of two basal lamina phenotypes, either a single aligned layer or one with additional layers. In antral follicles <5 mm diameter, half of the healthy follicles have columnar shaped basal granulosa cells and additional layers of basal lamina, which appear as loops in cross section (‘loopy’). The remainder have aligned single-layered follicular basal laminas with rounded basal cells, and contain better quality oocytes than the loopy/columnar follicles. In sizes >5 mm, only aligned/rounded phenotypes are present. Dominant and subordinate follicles can be identified by ultrasound and/or histological examination of pairs of ovaries. Atretic follicles <5 mm are either basal atretic or antral atretic, named on the basis of the location in the membrana granulosa where cells die first. Basal atretic follicles have considerable biological differences to antral atretic follicles. In follicles >5 mm, only antral atresia is observed. The concentrations of follicular fluid steroid hormones can be used to classify atresia and distinguish some of the different types of atresia; however, this method is unlikely to identify follicles early in atresia, and hence misclassify them as healthy. Other biochemical and histological methods can be used, but since cell death is a part of normal homoeostatis, deciding when a follicle has entered atresia remains somewhat subjective.</description><identifier>ISSN: 1470-1626</identifier><identifier>EISSN: 1741-7899</identifier><identifier>DOI: 10.1530/REP-09-0177</identifier><identifier>PMID: 19786400</identifier><language>eng</language><publisher>England: BioScientifica</publisher><subject>Aging ; Animals ; Basement Membrane - ultrastructure ; Cattle ; Cell Death ; Cytological Techniques ; Female ; Follicular Atresia ; Follicular Fluid - metabolism ; Gonadal Steroid Hormones - metabolism ; Granulosa Cells - ultrastructure ; Homeostasis ; Ovarian Follicle - cytology ; Ovarian Follicle - metabolism ; Ovarian Follicle - ultrastructure ; Phenotype ; Review ; Terminology as Topic</subject><ispartof>Reproduction (Cambridge, England), 2010-02, Vol.139 (2), p.309-318</ispartof><rights>2010 Society for Reproduction and Fertility</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-b508t-b264942e9aa4dd9224d5732caadb9742963b172da707e11be24fe4339c80f9893</citedby><cites>FETCH-LOGICAL-b508t-b264942e9aa4dd9224d5732caadb9742963b172da707e11be24fe4339c80f9893</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/19786400$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Rodgers, R J</creatorcontrib><creatorcontrib>Irving-Rodgers, H F</creatorcontrib><title>Morphological classification of bovine ovarian follicles</title><title>Reproduction (Cambridge, England)</title><addtitle>Reproduction</addtitle><description>Follicle classification is an important aid to the understanding of follicular development and atresia. Some bovine primordial follicles have the classical primordial shape, but ellipsoidal shaped follicles with some cuboidal granulosa cells at the poles are far more common. Preantral follicles have one of two basal lamina phenotypes, either a single aligned layer or one with additional layers. In antral follicles <5 mm diameter, half of the healthy follicles have columnar shaped basal granulosa cells and additional layers of basal lamina, which appear as loops in cross section (‘loopy’). The remainder have aligned single-layered follicular basal laminas with rounded basal cells, and contain better quality oocytes than the loopy/columnar follicles. In sizes >5 mm, only aligned/rounded phenotypes are present. Dominant and subordinate follicles can be identified by ultrasound and/or histological examination of pairs of ovaries. Atretic follicles <5 mm are either basal atretic or antral atretic, named on the basis of the location in the membrana granulosa where cells die first. Basal atretic follicles have considerable biological differences to antral atretic follicles. In follicles >5 mm, only antral atresia is observed. The concentrations of follicular fluid steroid hormones can be used to classify atresia and distinguish some of the different types of atresia; however, this method is unlikely to identify follicles early in atresia, and hence misclassify them as healthy. Other biochemical and histological methods can be used, but since cell death is a part of normal homoeostatis, deciding when a follicle has entered atresia remains somewhat subjective.</description><subject>Aging</subject><subject>Animals</subject><subject>Basement Membrane - ultrastructure</subject><subject>Cattle</subject><subject>Cell Death</subject><subject>Cytological Techniques</subject><subject>Female</subject><subject>Follicular Atresia</subject><subject>Follicular Fluid - metabolism</subject><subject>Gonadal Steroid Hormones - metabolism</subject><subject>Granulosa Cells - ultrastructure</subject><subject>Homeostasis</subject><subject>Ovarian Follicle - cytology</subject><subject>Ovarian Follicle - metabolism</subject><subject>Ovarian Follicle - ultrastructure</subject><subject>Phenotype</subject><subject>Review</subject><subject>Terminology as Topic</subject><issn>1470-1626</issn><issn>1741-7899</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kEtLAzEURoMotlZX7nV2LmQ0r5lMllLqAyqK2nXIZJI2kk5q0lb896ZORXHh6l645_u4HACOEbxABYGXT6PHHPIcIsZ2QB8xinJWcb6bdspgjkpc9sBBjK8QoqJi5T7oIc6qkkLYB9W9D4uZd35qlXSZcjJGa9K-tL7NvMlqv7atzvxaBivbzHjnrHI6HoI9I13UR9s5AJPr0cvwNh8_3NwNr8Z5XcBqmde4pJxizaWkTcMxpk3BCFZSNjVnFPOS1IjhRjLINEK1xtRoSghXFTS84mQAzrreRfBvKx2XYm6j0s7JVvtVFIxQXJQVYok870gVfIxBG7EIdi7Dh0BQbEyJZEpALjamEn2y7V3Vc938sFs1CcAdMLPT2bsNWtTWR2V1u_wS9Lv1238KnXYhI72Q02CjmDxjiEi6claQDYE64k_bf79-AuIWjI0</recordid><startdate>20100201</startdate><enddate>20100201</enddate><creator>Rodgers, R J</creator><creator>Irving-Rodgers, H F</creator><general>BioScientifica</general><general>BioScientifica Ltd</general><general>Society for Reproduction and Fertility</general><scope>FBQ</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20100201</creationdate><title>Morphological classification of bovine ovarian follicles</title><author>Rodgers, R J ; Irving-Rodgers, H F</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-b508t-b264942e9aa4dd9224d5732caadb9742963b172da707e11be24fe4339c80f9893</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Aging</topic><topic>Animals</topic><topic>Basement Membrane - ultrastructure</topic><topic>Cattle</topic><topic>Cell Death</topic><topic>Cytological Techniques</topic><topic>Female</topic><topic>Follicular Atresia</topic><topic>Follicular Fluid - metabolism</topic><topic>Gonadal Steroid Hormones - metabolism</topic><topic>Granulosa Cells - ultrastructure</topic><topic>Homeostasis</topic><topic>Ovarian Follicle - cytology</topic><topic>Ovarian Follicle - metabolism</topic><topic>Ovarian Follicle - ultrastructure</topic><topic>Phenotype</topic><topic>Review</topic><topic>Terminology as Topic</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rodgers, R J</creatorcontrib><creatorcontrib>Irving-Rodgers, H F</creatorcontrib><collection>AGRIS</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Reproduction (Cambridge, England)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rodgers, R J</au><au>Irving-Rodgers, H F</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Morphological classification of bovine ovarian follicles</atitle><jtitle>Reproduction (Cambridge, England)</jtitle><addtitle>Reproduction</addtitle><date>2010-02-01</date><risdate>2010</risdate><volume>139</volume><issue>2</issue><spage>309</spage><epage>318</epage><pages>309-318</pages><issn>1470-1626</issn><eissn>1741-7899</eissn><abstract>Follicle classification is an important aid to the understanding of follicular development and atresia. Some bovine primordial follicles have the classical primordial shape, but ellipsoidal shaped follicles with some cuboidal granulosa cells at the poles are far more common. Preantral follicles have one of two basal lamina phenotypes, either a single aligned layer or one with additional layers. In antral follicles <5 mm diameter, half of the healthy follicles have columnar shaped basal granulosa cells and additional layers of basal lamina, which appear as loops in cross section (‘loopy’). The remainder have aligned single-layered follicular basal laminas with rounded basal cells, and contain better quality oocytes than the loopy/columnar follicles. In sizes >5 mm, only aligned/rounded phenotypes are present. Dominant and subordinate follicles can be identified by ultrasound and/or histological examination of pairs of ovaries. Atretic follicles <5 mm are either basal atretic or antral atretic, named on the basis of the location in the membrana granulosa where cells die first. Basal atretic follicles have considerable biological differences to antral atretic follicles. In follicles >5 mm, only antral atresia is observed. The concentrations of follicular fluid steroid hormones can be used to classify atresia and distinguish some of the different types of atresia; however, this method is unlikely to identify follicles early in atresia, and hence misclassify them as healthy. Other biochemical and histological methods can be used, but since cell death is a part of normal homoeostatis, deciding when a follicle has entered atresia remains somewhat subjective.</abstract><cop>England</cop><pub>BioScientifica</pub><pmid>19786400</pmid><doi>10.1530/REP-09-0177</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1470-1626 |
| ispartof | Reproduction (Cambridge, England), 2010-02, Vol.139 (2), p.309-318 |
| issn | 1470-1626 1741-7899 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_734256817 |
| source | MEDLINE; Alma/SFX Local Collection |
| subjects | Aging Animals Basement Membrane - ultrastructure Cattle Cell Death Cytological Techniques Female Follicular Atresia Follicular Fluid - metabolism Gonadal Steroid Hormones - metabolism Granulosa Cells - ultrastructure Homeostasis Ovarian Follicle - cytology Ovarian Follicle - metabolism Ovarian Follicle - ultrastructure Phenotype Review Terminology as Topic |
| title | Morphological classification of bovine ovarian follicles |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-19T21%3A12%3A42IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Morphological%20classification%20of%20bovine%20ovarian%20follicles&rft.jtitle=Reproduction%20(Cambridge,%20England)&rft.au=Rodgers,%20R%20J&rft.date=2010-02-01&rft.volume=139&rft.issue=2&rft.spage=309&rft.epage=318&rft.pages=309-318&rft.issn=1470-1626&rft.eissn=1741-7899&rft_id=info:doi/10.1530/REP-09-0177&rft_dat=%3Cproquest_cross%3E734256817%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=734256817&rft_id=info:pmid/19786400&rfr_iscdi=true |