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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2004-4-26
pubmed:abstractText
We have reported that transgenic mice overexpressing human osteoblast stimulating factor-1 (osf1) under the control of the human osteocalcin promoter have a significantly higher bone mineral content and density than nontransgenic littermates. Consequently, bone mass loss due to estrogen deficiency was compensated for in ovariectomized female mice. Here, we show that in this transgenic line, the bone mass increase was evident in female, but not male, mice, as evaluated using the ash assay, double-emission X-ray analysis, and calcein double-labeling to determine the bone formation rate. To elucidate a possible influence on gene expression, we analyzed genomic structures of the inserted transgene and its flanking regions in mouse chromosomes. The results revealed that the transgene was integrated in the mouse repetitive sequences, 234-bp-long gamma-satellite repeats, as inverted multiple (5 + 8) copies. Twelve copies at most seemed to be functional, but no direct evidence supporting female-specific mRNA synthesis of the transgene was obtained.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0914-8779
pubmed:author
pubmed:issnType
Print
pubmed:volume
22
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
278-82
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Bone mass increase specific to the female in a line of transgenic mice overexpressing human osteoblast stimulating factor-1.
pubmed:affiliation
Genomic Medical Sciences, Graduate School of Medicine, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan. thg@koto.kpu-m.ac.jp
pubmed:publicationType
Journal Article