Morphological characteristics of the bovine corpus luteum during the estrous cycle and pregnancy

The corpus luteum, one of the biological clocks of the estrous cycle and pregnancy, is known foremost for its production of progesterone that blocks the pituitary release of gonadotropins and prepares the uterus for a pregnancy. The cellular sources of this progesterone are the steroidogenic small a...

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Veröffentlicht in:Theriogenology 1996-05, Vol.45 (7), p.1295-1325
Hauptverfasser: Fields, M.J., Fields, P.A.
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description The corpus luteum, one of the biological clocks of the estrous cycle and pregnancy, is known foremost for its production of progesterone that blocks the pituitary release of gonadotropins and prepares the uterus for a pregnancy. The cellular sources of this progesterone are the steroidogenic small and large luteal cells. Other luteal cells that are not steroidogenic, but are believed to have an important role in the function of this gland are the fibroblast, macrophages and endothelial cells. The most prominent luteal cell is the large steroidogenic cell characterized by an abundance of smooth endoplasmic reticulum and densely packed spherical mitochondria that are indicative of its contribution to most of the circulating progesterone believed to be constitutively secreted and not under the control of LH. Other distinguishing features of the large luteal cell are the presence of rough endoplasmic reticulum, prominent Golgi, and secretory granules that are indicative of endocrine cells. This cell undergoes dynamic changes across the estrous cycle and pregnancy, believed to reflect a change in progesterone and protein secretion that will eventually influence a successful pregnancy or another ovulation if pregnancy fails. The morphological characteristics of the bovine luteal cells are the focus of this review.
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The cellular sources of this progesterone are the steroidogenic small and large luteal cells. Other luteal cells that are not steroidogenic, but are believed to have an important role in the function of this gland are the fibroblast, macrophages and endothelial cells. The most prominent luteal cell is the large steroidogenic cell characterized by an abundance of smooth endoplasmic reticulum and densely packed spherical mitochondria that are indicative of its contribution to most of the circulating progesterone believed to be constitutively secreted and not under the control of LH. Other distinguishing features of the large luteal cell are the presence of rough endoplasmic reticulum, prominent Golgi, and secretory granules that are indicative of endocrine cells. 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The morphological characteristics of the bovine luteal cells are the focus of this review.</description><subject>CELLULE</subject><subject>CELULAS</subject><subject>CICLO ESTRAL</subject><subject>CITOPLASMA</subject><subject>CORPS JAUNE</subject><subject>Corpus Luteum</subject><subject>Cow</subject><subject>CUERPO LUTEO</subject><subject>CYCLE OESTRAL</subject><subject>CYTOPLASME</subject><subject>EPITELIO</subject><subject>EPITHELIUM</subject><subject>Estrous Cycle</subject><subject>ESTRUCTURA CELULAR</subject><subject>FONCTION PHYSIOLOGIQUE</subject><subject>FUNCION FISIOLOGICA</subject><subject>GESTACION</subject><subject>GESTATION</subject><subject>MEMBRANAS CELULARES</subject><subject>MEMBRANE CELLULAIRE</subject><subject>METHODE STATISTIQUE</subject><subject>METODOS ESTADISTICOS</subject><subject>OCYTOCINE</subject><subject>Ovary</subject><subject>OXITOCINA</subject><subject>Oxytocin</subject><subject>Pregnancy</subject><subject>PROTEASAS</subject><subject>PROTEASE</subject><subject>RETICULO ENDOPLASMATICO</subject><subject>RETICULUM ENDOPLASMIQUE</subject><subject>Secretory Granules</subject><subject>STRUCTURE CELLULAIRE</subject><subject>ULTRAESTRUCTURA</subject><subject>ULTRASTRUCTURE</subject><subject>VACA</subject><subject>VACHE</subject><issn>0093-691X</issn><issn>1879-3231</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1996</creationdate><recordtype>article</recordtype><recordid>eNp9kF1LHDEUhkOp1NX2D4iUXIlejE0mMZncFIr4BUovWqF3aebkzG5kdrImM8L--2a7i955FQ7vc05eHkKOOTvnjKtvjBlRKcP_nBp1xspkKvmBzHijTSVqwT-S2SuyTw5yfiqQUIp_Ivtc6Vo3jZyRvw8xrRaxj_MArqewcMnBiCnkMUCmsaPjAmkbX8KAFAo7ZdpPI05L6qcUhvn_HPOYYklgDT1SN3i6Sjgf3ADrz2Svc33GL7v3kDxeX_2-vK3uf97cXf64r0BKMVaSa-01IjY1SA_Kc1fXF7xtL0pX0K0THBiTjGlkslXcmZY1jGujfCcKJQ7JyfbuKsXnqRSyy5AB-94NWKpZ3WhtJBcFlFsQUsw5YWdXKSxdWlvO7Mas3WizG23WbIZi1sqy9nV3f2qX6N-WdioLcLQFOhetmxeD9vGXUSXUTQm_b0MsCl4CJpsh4ADoQ0IYrY_h_e__AXIOkd0</recordid><startdate>19960501</startdate><enddate>19960501</enddate><creator>Fields, M.J.</creator><creator>Fields, P.A.</creator><general>Elsevier Inc</general><scope>FBQ</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>19960501</creationdate><title>Morphological characteristics of the bovine corpus luteum during the estrous cycle and pregnancy</title><author>Fields, M.J. ; Fields, P.A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c443t-4177d7eee82c4dc6d1a2251bb5167c7ba31c004007e04b61a9b0801796df3bb53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1996</creationdate><topic>CELLULE</topic><topic>CELULAS</topic><topic>CICLO ESTRAL</topic><topic>CITOPLASMA</topic><topic>CORPS JAUNE</topic><topic>Corpus Luteum</topic><topic>Cow</topic><topic>CUERPO LUTEO</topic><topic>CYCLE OESTRAL</topic><topic>CYTOPLASME</topic><topic>EPITELIO</topic><topic>EPITHELIUM</topic><topic>Estrous Cycle</topic><topic>ESTRUCTURA CELULAR</topic><topic>FONCTION PHYSIOLOGIQUE</topic><topic>FUNCION FISIOLOGICA</topic><topic>GESTACION</topic><topic>GESTATION</topic><topic>MEMBRANAS CELULARES</topic><topic>MEMBRANE CELLULAIRE</topic><topic>METHODE STATISTIQUE</topic><topic>METODOS ESTADISTICOS</topic><topic>OCYTOCINE</topic><topic>Ovary</topic><topic>OXITOCINA</topic><topic>Oxytocin</topic><topic>Pregnancy</topic><topic>PROTEASAS</topic><topic>PROTEASE</topic><topic>RETICULO ENDOPLASMATICO</topic><topic>RETICULUM ENDOPLASMIQUE</topic><topic>Secretory Granules</topic><topic>STRUCTURE CELLULAIRE</topic><topic>ULTRAESTRUCTURA</topic><topic>ULTRASTRUCTURE</topic><topic>VACA</topic><topic>VACHE</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Fields, M.J.</creatorcontrib><creatorcontrib>Fields, P.A.</creatorcontrib><collection>AGRIS</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Theriogenology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Fields, M.J.</au><au>Fields, P.A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Morphological characteristics of the bovine corpus luteum during the estrous cycle and pregnancy</atitle><jtitle>Theriogenology</jtitle><addtitle>Theriogenology</addtitle><date>1996-05-01</date><risdate>1996</risdate><volume>45</volume><issue>7</issue><spage>1295</spage><epage>1325</epage><pages>1295-1325</pages><issn>0093-691X</issn><eissn>1879-3231</eissn><abstract>The corpus luteum, one of the biological clocks of the estrous cycle and pregnancy, is known foremost for its production of progesterone that blocks the pituitary release of gonadotropins and prepares the uterus for a pregnancy. The cellular sources of this progesterone are the steroidogenic small and large luteal cells. Other luteal cells that are not steroidogenic, but are believed to have an important role in the function of this gland are the fibroblast, macrophages and endothelial cells. The most prominent luteal cell is the large steroidogenic cell characterized by an abundance of smooth endoplasmic reticulum and densely packed spherical mitochondria that are indicative of its contribution to most of the circulating progesterone believed to be constitutively secreted and not under the control of LH. Other distinguishing features of the large luteal cell are the presence of rough endoplasmic reticulum, prominent Golgi, and secretory granules that are indicative of endocrine cells. This cell undergoes dynamic changes across the estrous cycle and pregnancy, believed to reflect a change in progesterone and protein secretion that will eventually influence a successful pregnancy or another ovulation if pregnancy fails. The morphological characteristics of the bovine luteal cells are the focus of this review.</abstract><cop>United States</cop><pub>Elsevier Inc</pub><pmid>16727884</pmid><doi>10.1016/0093-691X(96)00099-4</doi><tpages>31</tpages></addata></record>
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subjects CELLULE
CELULAS
CICLO ESTRAL
CITOPLASMA
CORPS JAUNE
Corpus Luteum
Cow
CUERPO LUTEO
CYCLE OESTRAL
CYTOPLASME
EPITELIO
EPITHELIUM
Estrous Cycle
ESTRUCTURA CELULAR
FONCTION PHYSIOLOGIQUE
FUNCION FISIOLOGICA
GESTACION
GESTATION
MEMBRANAS CELULARES
MEMBRANE CELLULAIRE
METHODE STATISTIQUE
METODOS ESTADISTICOS
OCYTOCINE
Ovary
OXITOCINA
Oxytocin
Pregnancy
PROTEASAS
PROTEASE
RETICULO ENDOPLASMATICO
RETICULUM ENDOPLASMIQUE
Secretory Granules
STRUCTURE CELLULAIRE
ULTRAESTRUCTURA
ULTRASTRUCTURE
VACA
VACHE
title Morphological characteristics of the bovine corpus luteum during the estrous cycle and pregnancy
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