Abstract:
:The expression of 76 sequences, previously isolated as differentially expressed in visceral white adipose tissue (WAT) of female rats, fed with a high-fat diet for 11 days (Lopez et al., Biochem Biophys Res Comm 318: 234-239, 2004), was analyzed in epidydimal WAT of male rats after a feeding period of 65 days with the same diet, using microarray technology. After Northern blot validation of the results, only three genes appeared upregulated (caveolin-2, the alpha-1 chain of haemoglobin and rat mammary tumor-7) and two downregulated (adiponectin and dystroglycan). We have also analyzed caveolin-1 gene expression and found that follows the opposite pattern of caveolin-2, indicating that they are inversely regulated. Our results suggest that if feeding with a high-fat diet is prolonged, many of the initial changes in gene expression, probably aimed to consume the energy surplus and prevent excessive fat deposition, are not maintained, and adaptation to an increased lipid storage is developed.
journal_name
Mol Cell Biochemjournal_title
Molecular and cellular biochemistryauthors
Lopez IP,Milagro FI,Marti A,Moreno-Aliaga MJ,Martinez JA,De Miguel Cdoi
10.1007/s11010-005-1082-zkeywords:
subject
Has Abstractpub_date
2005-07-01 00:00:00pages
109-15issue
1-2eissn
0300-8177issn
1573-4919journal_volume
275pub_type
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