Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2009-4-28
pubmed:abstractText
The aim of our study was to investigate the sex- and age-related changes of serum Dickkopf-1 (Dkk-1), a soluble inhibitor of the Wnt signaling pathway, in healthy individuals and in patients with breast cancer (BC) and bone metastases (BM) using a new ELISA. Association of serum Dkk-1 with markers of bone turnover was also investigated. Serum Dkk-1 measurements were performed using a commercial sandwich ELISA in 150 healthy men, 175 healthy pre- and postmenopausal women (20-65 years), 22 women with BC and BM (mean age 63 years), and 16 women with BC and metastases at sites other than bone (mean age 53 years). Intra- and interassay coefficients of variation were below 7% and 12%, respectively. The detection limit was determined to be 0.018 microg/L. In healthy women and men, Dkk-1 did not change with age. Serum Dkk-1 modestly correlated with serum bone alkaline phosphatase (r = 0.19, P = 0.013) and serum C-terminal cross-linking telopeptide of type I collagen (r = 0.19, P = 0.014) in women but not in men. Dkk-1 levels were higher in women with BC and BM (5.57 +/- 5.50 microg/L) than in healthy age-matched controls (3.47 +/- 1.47 microg/L, P < 0.0001) and women with metastases at sites other than bone (3.57 +/- 1.66 microg/L, P = 0.0003). In conclusion, serum Dkk-1 is stable with age in healthy women and men and increases in patients with BC and BM. Measurements of circulating Dkk-1 with this new ELISA may be useful for the clinical investigation of patients with malignant bone diseases.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1432-0827
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
84
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
348-54
pubmed:meshHeading
pubmed-meshheading:19252761-Adult, pubmed-meshheading:19252761-Aged, pubmed-meshheading:19252761-Aging, pubmed-meshheading:19252761-Alkaline Phosphatase, pubmed-meshheading:19252761-Bone Neoplasms, pubmed-meshheading:19252761-Bone and Bones, pubmed-meshheading:19252761-Breast Neoplasms, pubmed-meshheading:19252761-Carcinoma, pubmed-meshheading:19252761-Enzyme-Linked Immunosorbent Assay, pubmed-meshheading:19252761-Female, pubmed-meshheading:19252761-Humans, pubmed-meshheading:19252761-Immunoassay, pubmed-meshheading:19252761-Intercellular Signaling Peptides and Proteins, pubmed-meshheading:19252761-Male, pubmed-meshheading:19252761-Middle Aged, pubmed-meshheading:19252761-Predictive Value of Tests, pubmed-meshheading:19252761-Signal Transduction, pubmed-meshheading:19252761-Tumor Markers, Biological, pubmed-meshheading:19252761-Up-Regulation, pubmed-meshheading:19252761-Wnt Proteins, pubmed-meshheading:19252761-Young Adult
pubmed:year
2009
pubmed:articleTitle
Assessment of circulating Dickkopf-1 with a new two-site immunoassay in healthy subjects and women with breast cancer and bone metastases.
pubmed:affiliation
Biochemical Markers, Synarc, Lyon, France.
pubmed:publicationType
Journal Article