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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2006-4-7
pubmed:abstractText
Hyperhomocysteinemia could play a similar role in the placenta to that played in adults at risk of thrombosis. Moreover, hyperhomocysteinemia in women is described to be associated with the birth of small for gestational age (SGA) newborns, although there are discrepancies on this issue. To date, there is no biochemical marker predictive of SGA in a given pregnancy. We verified the presence of a relationship between homocysteine in amniotic fluid at mid-pregnancy and birth-weight. Amniotic fluid was obtained from 459 healthy women undergoing midtrimester amniocentesis (17.1 +/- 1.2 weeks) because of maternal age. Homocysteine levels were measured in 434 (10 twin) pregnancies. In addition, femur length (FL) and biparietal diameter (BPD) were measured. Outcome of pregnancy was recorded. 233 (53.7%) foetuses were males, 201 (46.3%) females. The mean homocysteine concentration was 1.04 +/- 0.72 microM, (95% C.I. 0.43-2.41). An univariate analysis showed the presence of an association with gestational age, FL, BPD. A multiple linear regression showed that homocysteine levels were significantly associated with FL (p < 0.001) and BPD (p = 0.011). After excluding twin pregnancies, 31 newborns (7.3%) were classified as SGA. Mean birth-weight was 2390 g in SGA, whereas it was 3360 g in 393 adequate for gestational age (AGA) newborns (p < 0.001). The adjusted mean level of homocysteine was significantly lower in AGA (1.01 microM; 95% C.I: 0.94-1.08) than that recorded in pregnancies resulting in a SGA (1.29 microM; 95% CI: 1.05-1.51; p = 0.03). In a large setting, these data provide reference values for homocysteine in amniotic fluids. Moreover, they suggest that homocysteine levels in amniotic fluids may be higher in pregnancies with a SGA newborn.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0340-6245
pubmed:author
pubmed:issnType
Print
pubmed:volume
95
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
625-8
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Homocysteine levels in amniotic fluid. Relationship with birth-weight.
pubmed:affiliation
Unità di Aterosclerosi e Trombosi, Poliambulatorio Giovanni Paolo II, IRCCS Casa Sollievo della Sofferenza S. Giovanni R. (FG), 71013 Italy. grandone@katamail.com
pubmed:publicationType
Journal Article