Ultrastructural localisation of calcium deposits in pig ovarian follicles

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F06%3A16186" target="_blank" >RIV/60460709:41210/06:16186 - isvavai.cz</a>

Alternative codes found

RIV/00027014:_____/06:#0000211

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Ultrastructural localisation of calcium deposits in pig ovarian follicles

Original language description

Calcium intracellular signaling regulates many intracellular events including oocyte maturation. This signaling is strongly dependent on the influx of calcium ions from extracellular spaces and on the state of intracellular calcium stores. In this study,intracellular calcium deposits were detected in follicle-enclosed pig oocytes using the combined oxalatepyroantimonate method. These deposits were observed in the nucleus, the mitochondria, the cytoplasm, and on the surface of lipid droplets. The amountof calcium deposits was expressed as a percentage of the area of the respective cellular compartment, which is covered with calcium deposits on ultrathin sections. On the basis of obtained data, we can conclude that the population of follicles on pig ovaries differs in the distribution and concentration of calcium deposits in oocytes, and these changes may be involved in the regulation of the meiotic competence of oocytes.

Czech name

Ultrastrukturální lokalizace vápníkových depozit v ovariálních folikulech

Czech description

Calcium intracellular signaling regulates many intracellular events including oocyte maturation. This signaling is strongly dependent on the influx of calcium ions from extracellular spaces and on the state of intracellular calcium stores. In this study,intracellular calcium deposits were detected in follicle-enclosed pig oocytes using the combined oxalatepyroantimonate method. These deposits were observed in the nucleus, the mitochondria, the cytoplasm, and on the surface of lipid droplets. The amountof calcium deposits was expressed as a percentage of the area of the respective cellular compartment, which is covered with calcium deposits on ultrathin sections. On the basis of obtained data, we can conclude that the population of follicles on pig ovaries differs in the distribution and concentration of calcium deposits in oocytes, and these changes may be involved in the regulation of the meiotic competence of oocytes.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

GA - Agricultural economics

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Animal Reproduction Science

ISSN

0378-4320

e-ISSN

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Volume of the periodical

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Issue of the periodical within the volume

91

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

10

Pages from-to

123-132

UT code for WoS article

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EID of the result in the Scopus database

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