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001-es BibID:	BIBFORM010447
Első szerző:	Molvarec Attila (szülész-nőgyógyász)
Cím:	Increased plasma von Willebrand factor antigen levels but normal von Willebrand factor cleaving protease (ADAHTS13) activity in preeclampsia / Molvarec, A., Rigó, J., Jr., Bőze, T., Derzsy, Z., Cervenak, L., Makó, V., Gombos, T., Udvardy, M.L., Hársfalvi, J., Prohászka, Z.
Dátum:	2009
ISSN:	0340-6245 (Print)
Megjegyzések:	The activity of ADAMTS13, the von WiIIebrand factor (VWF) cleaving protease is low in several conditions, including HELLP (haemolysis, elevated liver enzymes, and low platelet count) syndrome. As HELLP syndrome develops in most cases on the basis of preeclampsia, our aim was to determine whether plasma ADAMTS13 activity is decreased in preeclampsia. Sixty-seven preeclamptic patients, 70 healthy pregnant women and 59 healthy non-pregnant women were involved in this case-control study. Plasma ADAMTS13 activity was determined with the FRETS-VWF73 assay, while VWF antigen (VWF:Ag) levels with an enzyme-linked immunosorbent assay. The multimeric pattern of VWF was analyzed by SDS-agarose gel electrophoresis. There was no significant difference in plasma ADAMTS13 activity between the preeclamptic and the healthy pregnant and nonpregnant groups (median [25-75 percentile]: 98.8 [76.5-112.8] %, 96.3 [85.6-116.2] % and 91.6 [78.5-104.4] %, respectively; p>0.05). However, plasma VWF:Ag levels were significantly higher in preeclamptic patients than in healthy pregnant and non-pregnant women (187.1 [145.6-243.1] % versus 129.3 [105.1-182.8] % and 70.0 [60.2-87.3] %, respectively; p<0.001). The multimeric pattern of VWF was normal in each group. Primiparas had lower plasma ADAMTS13 activity than multiparas (92.6 [75.8-110.6] % versus 104.2 [92.1-120.8] %; p=0.011). No other relationship was found between clinical characteristics, laboratory parameters and plasma ADAMTS13 activity in either study group. In conclusion, plasma ADAMTS13 activity is normal in preeclampsia despite the increasedVWF:Ag levels. However, further studies are needed to determine whether a decrease in plasma ADAMTS13 activity could predispose preeclamptic patients to develop HELLP syndrome.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban ADAMTS13 HELLP syndrome Preeclampsia Pregnancy Von Willebrand factor von Willebrand factor von Willebrand factor cleaving proteinase ADAM protein ADAMTS13 protein human biological marker adult agar gel electrophoresis article case control study controlled study enzyme linked immunosorbent assay female HELLP syndrome hemolysis human laboratory test liver major clinical study preeclampsia priority journal protein blood level thrombocyte count blood enzymology parity pregnancy protein multimerization upregulation ADAM Proteins Adult Biological Markers Case-Control Studies Female HELLP Syndrome Humans Parity Pre-Eclampsia Pregnancy Protein Multimerization Up-Regulation von Willebrand Factor Young Adult
Megjelenés:	Thrombosis and Haemostasis. - 101 : 2 (2009), p. 305-311. -
További szerzők:	Rigó János (1958-) (szülész-nőgyógyász) Bőze Tamás Derzsy Zoltán Cervenak László Makó Veronika Gombos Tímea Udvardy Miklós László (1977-) (orvos, tudományos segédmunkatárs) Hársfalvi Jolán (1949-) (klinikai biokémikus) Prohászka Zoltán
Internet cím:	elektronikus változat DOI Intézményi repozitóriumban (DEA) tárolt változat
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