VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
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A microarray based identification of osteoporosis-related genes in primary culture of human osteoblastsTrošt, Zoran, 1979- ...Genetic factors influencing the pathogenesis of osteoporosis are still largelyunknown. We employed genome-wide gene expression approach in order to discover novel genes involved in the pathogenesis ... of osteoporosis. To this end, primary cultures of osteoblasts isolated from osteoporotic and non-osteoporotic human bone tissue samples were prepared. One thousand six hundred six genes were found to be differentially expressed, indicating increased demand for protein synthesis and decreased cell proliferation rate in osteoblasts from osteoporotic tissue as compared to osteoblasts from non-osteoporotic tissue. At first, top four genes, based on the microarray data and potential role in bone metabolism, were further studied in bone tissue samples of 55 patients. PTN and COL15A1 were both downregulated in osteoporotic bone tissue (6.2- and 3.4-fold, respectively, both p < 0.05), while IBSP and CXCL2 were both upregulated (5.7-fold, p < 0.05, and 2.1-fold, p > 0.05). Further biostatistical analysis of the microarray data by gene set enrichment analysis suggested oxidative stress may have an important part in the pathogenesis of osteoporosis. Thus, secondly, we tested it by an in vitro assay on human osteosarcoma cell line cells treated with hydrogen peroxide. After 72 h of treatment with 500 ?M hydrogen peroxide, the upregulation of thesame genes involved in the response to oxidative stress as on the microarrays was observed: MT1G (metallothionein 1G, 22.1-fold, p < 0.05), TXNRD1 (thioredoxin reductase 1, 3.7-fold, p < 0.05), AOX1 (aldehyde oxidase 1, 24.5-fold, p < 0.05) and GSR (glutathione reductase, 4.7-fold, p < 0.05). Our results present a novel list of genes and metabolic pathways that may be associated with the pathogenesis of osteoporosis. PTN, CXCL2, COL15A1, IBSP, AOX1, MT1G, GSR and TXNRD1 are candidate genes for further studies in the assessment of the genetic susceptibility to osteoporosis. In addition, differences in protein synthesis, cell proliferation rate and response to oxidative stress may also be involved in the pathogenesis of osteoporosis.Vir: Bone. - ISSN 8756-3282 (Vol. 46, no. 1, 2010, str. 72-80)Vrsta gradiva - članek, sestavni delLeto - 2010Jezik - angleškiCOBISS.SI-ID - 2678385
Avtor
Trošt, Zoran, 1979- |
Trebše, Rihard |
Preželj, Janez |
Komadina, Radko |
Bitenc Logar, Darja |
Marc, Janja
Teme
oksidativni stres |
genska ekspresija |
CXCL2 |
kostno tkivo
Vnos na polico
Trajna povezava
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Faktor vpliva
Dostop do baze podatkov JCR je dovoljen samo uporabnikom iz Slovenije. Vaš trenutni IP-naslov ni na seznamu dovoljenih za dostop, zato je potrebna avtentikacija z ustreznim računom AAI.
Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Trošt, Zoran, 1979- | 25495 |
Trebše, Rihard | 23524 |
Preželj, Janez | 01989 |
Komadina, Radko | 19380 |
Bitenc Logar, Darja | 20373 |
Marc, Janja | 12189 |
Vir: Osebne bibliografije
in: SICRIS
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