Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2010-11-15
pubmed:abstractText
Osteoporosis and obesity remain a major public health concern through its associated fragility and fractures. Several animal models for the study of osteoporotic bone loss, such as ovariectomy (OVX) and denervation, require unique surgical skills and expensive set up. The challenging aspect of these age-associated diseases is that no single animal model exactly mimics the progression of these human-specific chronic conditions. Accordingly, to develop a simple and novel model of post menopausal bone loss with obesity, we fed either a high fat diet containing 10% corn oil (CO) or standard rodent lab chow (LC) to 12-month-old female C57Bl/6J mice for 6 months. As a result, CO fed mice exhibited increased body weight, total body fat mass, abdominal fat mass and reduced bone mineral density (BMD) in different skeletal sites measured by dual energy X-ray absorptiometry. We also observed that decreased BMD with age in CO fed obese mice was accompanied by increased bone marrow adiposity, up-regulation of peroxisome proliferator-activated receptor ?, cathepsin k and increased proinflammatory cytokines (interleukin 6 and tumor necrosis factor ?) in bone marrow and splenocytes, when compared to that of LC fed mice. Therefore, this appears to be a simple, novel and convenient age-associated model of post menopausal bone loss, in conjunction with obesity, which can be used in pre-clinical drug discovery to screen new therapeutic drugs or dietary interventions for the treatment of obesity and osteoporosis in the human population.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1873-4847
pubmed:author
pubmed:copyrightInfo
Copyright © 2010 Elsevier Inc. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
21
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1162-9
pubmed:meshHeading
pubmed-meshheading:20149618-Adipocytes, pubmed-meshheading:20149618-Animals, pubmed-meshheading:20149618-Body Weight, pubmed-meshheading:20149618-Bone Density, pubmed-meshheading:20149618-Cathepsin K, pubmed-meshheading:20149618-Cells, Cultured, pubmed-meshheading:20149618-Corn Oil, pubmed-meshheading:20149618-Diet, pubmed-meshheading:20149618-Dietary Fats, pubmed-meshheading:20149618-Disease Models, Animal, pubmed-meshheading:20149618-Female, pubmed-meshheading:20149618-Interleukin-6, pubmed-meshheading:20149618-Mice, pubmed-meshheading:20149618-Mice, Inbred C57BL, pubmed-meshheading:20149618-Obesity, pubmed-meshheading:20149618-Osteoporosis, pubmed-meshheading:20149618-PPAR gamma, pubmed-meshheading:20149618-Spleen, pubmed-meshheading:20149618-Tumor Necrosis Factor-alpha, pubmed-meshheading:20149618-Up-Regulation
pubmed:year
2010
pubmed:articleTitle
High fat diet-induced animal model of age-associated obesity and osteoporosis.
pubmed:affiliation
Division of Clinical Immunology and Rheumatology, Department of Medicine, University of Texas Health Science Center at San Antonio, TX 78229-3900, USA.
pubmed:publicationType
Journal Article, Research Support, N.I.H., Extramural