Growing in Antarctica, a challenge for white adipose tissue development in Adélie penguin chicks (Pygoscelis adeliae)

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• Data_Quality_Information
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Identification_Information:

Citation:

Citation_Information:

Originator: Mireille Raccurt, Fannie Baudimont, Julien Tirard, Benjamin Rey, Elodie Moureaux, Alain Géloën and Claude Duchamp

Publication_Date: 00000000

Title: Growing in Antarctica, a challenge for white adipose tissue development in Adélie penguin chicks (Pygoscelis adeliae)

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Issue_Identification: Am J Physiol Regul Integr Comp Physiol 295: R1671–R1679, 2008

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Description:

Abstract:

Rapid growth is of crucial importance for Adélie penguin chicks reared during the short Antarctic summer. It partly depends on the rapid ontogenesis of fat stores that are virtually null at hatching but then develop considerably (40) within a month to constitute both an insulative layer against cold and an energy store to fuel thermogenic and growth processes. The present study was aimed at identifying by RT-PCR the major transcriptional events that chronologically underlie the morphological transformation of adipocyte precursors into mature adipocytes from hatching to 30 days of age. The peak expression of GATA binding protein 3, a marker of preadipocytes, at day 7 posthatch indicates a key proliferation step, possibly in relation to the expression of C/EBPalpha (C/EBPalpha). High plasma total 3,5,3'-triiodo-Lthyronine (T3) levels and high levels of growth hormone receptor transcripts at hatching suggested that growth hormone and T3 play early activating roles to favor proliferation of preadipocyte precursors. Differentiation and growth of preadipocytes may occur around day 15 in connection with increased abundance of transcripts encoding IGF-1, proliferator-activated receptor-gamma, and C/EBPbeta, gradually leading to functional maturation of metabolic features of adipocytes including lipid uptake and storage (lipoprotein lipase, fatty-acid synthase) and late endocrine functions (adiponectin) by day 30. Present results show a close correlation between adipose tissue development and chick biology and a difference in the scheduled expression of regulatory factors controlling adipogenesis compared with in vitro studies using cell lines emphasizing the importance of in vivo approaches.

Purpose:

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Supplemental_Information:

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Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

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West_Bounding_Coordinate: Not Available

East_Bounding_Coordinate: Not Available

North_Bounding_Coordinate: Not Available

South_Bounding_Coordinate: Not Available

Keywords:

Theme:

Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS

Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS

Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > ANIMAL SCIENCE > ANIMAL PHYSIOLOGY AND BIOCHEMISTRY

Theme_Keyword: EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > BIRDS > PENGUINS

Theme_Keyword: EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > EVOLUTIONARY ADAPTATION

Theme_Keyword: Adelie Penguin

Theme_Keyword: White Adipose Tissue

Theme_Keyword: Adipogenesis

Theme_Keyword: Growth

Theme_Keyword: Adipocyte

Theme_Keyword: Gene Expression

Theme_Keyword: Thermoregulation

Theme_Keyword: Cold Adaptation

Theme_Keyword: Energy Storage

Theme_Keyword: Energy Balance

Theme_Keyword: BIOTA

Theme_Keyword: ENVIRONMENT

Place:

Place_Keyword_Thesaurus: GCMD

Place_Keyword: CONTINENT > ANTARCTICA > ADÉLIE

Place_Keyword: CONTINENT > ANTARCTICA > TERRE

Place_Keyword: CONTINENT > ANTARCTICA

Place_Keyword: GEOGRAPHIC REGION > POLAR

Access_Constraints: Not Available

Use_Constraints:

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Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: MIREILLE RACCURT

Contact_Position: INVESTIGATOR

Contact_Position: TECHNICAL CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Address: 43 bld 11 nov 1918

City: Villeurbanne

Postal_Code: 69622

Country: France

Contact_Electronic_Mail_Address: mireille.raccurt@univ-lyon1.fr

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Process_Date: Unknown

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Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: UNIV LYON 1/LPI/CM > Laboratoire de Physiologie Intégrative, Cellulaire et Moléculaire

Contact_Person: CLAUDE DUCHAMP

Contact_Position: DATA CENTER CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Address: 43 bld 11 nov 1918

City: Villeurbanne

Postal_Code: 69622

Country: France

Contact_Voice_Telephone: 0472448138

Contact_Electronic_Mail_Address: claude.duchamp@univ-lyon1.fr

Resource_Description: 131_9_IPEV_FR

Distribution_Liability:

Not Available

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Format_Name: Not Available

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Network_Resource_Name:

http://ufr-biologie.univ-lyon1.fr

Access_Instructions:

DATA CENTER URL

Digital_Transfer_Option:

Fees: Not Available

Metadata_Reference_Information:

Metadata_Date: 20091116

Metadata_Review_Date: 20120125

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: CLAUDE DUCHAMP

Contact_Position: DIF AUTHOR

Contact_Address:

Address_Type: Mailing and Physical Address

Address: 43 bld 11 nov 1918

City: Villeurbanne

Postal_Code: 69622

Country: France

Contact_Voice_Telephone: 0472448138

Contact_Electronic_Mail_Address: claude.duchamp@univ-lyon1.fr

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time