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Variations in parametrial white adipose tissue mass during the mouse estrous cycle: relationship with the expression of peroxisome proliferator-activated receptor-gamma and retinoic acid receptor-alpha.
- Source :
-
Canadian journal of physiology and pharmacology [Can J Physiol Pharmacol] 2006 Aug-Sep; Vol. 84 (8-9), pp. 887-92. - Publication Year :
- 2006
-
Abstract
- Estrogen and progestin participate in the regulation of adipose tissue metabolism, and peroxisome proliferator-activated receptor-gamma (PPARgamma) and retinoic acid receptor-alpha (RXRalpha) are absolutely required for adipose tissue development. The present study is to investigate the changes in parametrial fat mass and expression of PPARgamma and RXRalpha during estrous cycle in mice. Parametrial white adipose tissues (WAT), inter-scapula brown adipose tissues, and uteri from female mice were weighed. Blood samples were collected for the measurement of 17 beta-estradiol and progesterone levels. An RNase protection assay and Western blot analysis were used to compare the expression of PPARgamma and RXRalpha in adipose tissue. The mass of parametrial WAT in diestrus was significantly higher compared with estrus. However, there is no significant difference on the mass of brown adipose tissues during estrous cycle. The expression of PPARgamma in WAT in diestrus was significantly higher than that in estrus. The expression of RXRalpha during estrous cycle was unchanged in both white and brown adipose tissues. In conclusion, the variation in parametrial WAT mass during the mouse estrous cycle correlates with changes in the expression of PPARgamma in WAT.
- Subjects :
- Adipose Tissue, Brown anatomy & histology
Adipose Tissue, Brown metabolism
Adipose Tissue, White anatomy & histology
Animals
Female
Mice
Mice, Inbred Strains
Organ Size
PPAR gamma genetics
RNA, Messenger metabolism
Receptors, Retinoic Acid genetics
Retinoic Acid Receptor alpha
Uterus anatomy & histology
Adipose Tissue, White metabolism
Estrous Cycle metabolism
PPAR gamma metabolism
Receptors, Retinoic Acid metabolism
Subjects
Details
- Language :
- English
- ISSN :
- 0008-4212
- Volume :
- 84
- Issue :
- 8-9
- Database :
- MEDLINE
- Journal :
- Canadian journal of physiology and pharmacology
- Publication Type :
- Academic Journal
- Accession number :
- 17111033
- Full Text :
- https://doi.org/10.1139/y06-032