(1) The following examinations could be proposed: in high risk cases determined before pregnancy, a chorionic villus sampling should be done between the 9th and 11th weeks of gestation; in low risk cases such as advanced maternal age, a first trimester chorionic villus sampling or a second trimester amniocentesis could be chosen; in the case of Down's syndrome, warning signs, for example ultrasonographic or biological parameters, a second trimester placental biopsy to relieve the parents' anxiety; in high risk cases such as ultrasonographic malformations, late placental biopsy or cordocentesis.
(2) In a cross-sectional study of 120 pregnancies undergoing cordocentesis for prenatal diagnosis (n = 90) or elective caesarean section (n = 30), the umbilical cord and maternal venous plasma erythropoietin (Epo) concentrations were measured.
(3) A cordocentesis allowed us to find important biological abnormalities.
(4) When a fetal blood sample is obtained by cordocentesis it is important to know whether the sample is diluted with amniotic fluid.
(5) Percutaneous umbilical blood sampling (cordocentesis) provides direct access to the fetal circulation in the second and third trimesters of pregnancy.
(6) The diagnosis and treatment of isoimmunization has improved markedly with the introduction of high-resolution real-time ultrasound, cordocentesis, selective intravascular fetal blood transfusion, and meticulous fetal surveillance.
(7) The authors report 8 diagnostic cordocentesis performed at the end of the first trimester.
(8) We have carried out a prenatal diagnostic procedure by means of cordocentesis in a mother who was 20 weeks pregnant and had previously given birth to a child with LAD.
(9) Hourly fetal urine production rate was determined by real-time ultrasonography immediately before cordocentesis for blood gas analysis in 27 small-for-gestational-age fetuses at 20 to 37 weeks' gestation; in 14 cases there was associated oligohydramnios.
(10) Counseling before fetal blood sampling via cordocentesis is more difficult than that done before amniocentesis because 1) a fetal anomaly has been detected or is very likely, 2) the cordocentesis procedure may have a higher risk than does amniocentesis, and 3) the gestational age is frequently advanced before referral.
(11) Cordocentesis has been practiced as a diagnostical tool for prenatal diagnosis of intrauterine infections, hematological disorders, metabolic status of the fetus and rapid cytogenetic analysis.
(12) Plasma triglyceride concentration and blood oxygen tension were measured in samples obtained by cordocentesis from 35 small- and 54 appropriate-for-gestational-age fetuses at 18 to 36 weeks' gestation.
(13) Plasma cortisol and adrenocorticotropin (ACTH) were measured in fetal blood samples obtained by cordocentesis from 61 appropriate for gestational age (AGA) and in 41 small for gestational age (SGA) fetuses at 18-38 weeks gestation.
(14) Amniotic fluid was obtained by amniocentesis and fetal blood by ultrasound guided cordocentesis and by fetoscopy: the samples were analyzed for specific anti Toxoplasma IgM and sent for isolation of the parasite.
(15) Fetal blood sampling via cordocentesis is being used with increased frequency.
(16) Fetal blood sampling by ultrasound-guided cordocentesis was performed in 22 IUGR fetuses in order to evaluate the fetal condition.
(17) Pure fetal blood was obtained by cordocentesis in 101 fetuses of 96 patients at 15 to 38 weeks' gestation.
(18) One week after cordocentesis, the vessel wall was partially reformed.
(19) In all cases cordocentesis was performed within 24 hours before delivery for the measurement of umbilical venous blood gases.
(20) In order to obtain more rapid karyotypes, cordocentesis rather than amniocentesis was performed.
Fbs
Definition:
Example Sentences:
(1) In the presence of FBS, 1,25-(OH)2D3 significantly stimulated this response, but RA did not.
(2) Dialysed or heat-inactivated FBS or fatty-acid-free albumin was as effective as FBS in provoking ester hydrolysis and retinol release.
(3) Only cells cultured with Opti-MEM I and Omni Serum grew consistently in tubes and vials and these reagents were compared to FBS for viral isolation and detection.
(4) Their doubling time was 13.8 hours when they were cultured in a medium containing 10% FBS.
(5) These data indicate that an increase of Ca2+ in cytosol is important to PLA2 activation, and also that PLA2 may be activated by PMA, EGF and FBS in thyroid cells.
(6) Adult cells (and possibly fetal cells) also require a "cycle-completion" factor which is found in FBS and adult rat "plasma".
(7) The FBS Control is designed to assist cell culture scientists who have been frustrated with lack of consistency in FBS lots.
(8) IL-6 gene expression was rapidly induced in the "quiescent" mesangial cells by exposure to 20% FBS.
(9) Plasma lipid profiles--total cholesterol (TC), LDL-cholesterol, HDL-cholesterol, triglycerides and phospholipids--were studied in relation to two parameters of diabetic control (fasting blood sugar (FBS) for short-term control and glycosylated haemoglobin (HBA1C) for long-term control) in 46 diabetic patients (22 insulin-dependent (IDDM) and 24 non-insulin dependent (NIDDM] and 22 non-diabetic control subjects.
(10) These results suggest that the restricted H10 medium with FBS is suitable to maintain the transparency of the incubated lenses rather than the nutritious DME medium with or without FBS.
(11) In order to examine the effect of increased [CaCl2] on human fibroblasts from donors of varying age, fibroblasts were grown in medium (basal level of 1.8 mM CaCl2) supplemented with fetal bovine serum (FBS) until confluent.
(12) Cells were incubated with [14C]20:3(n-6) in the presence of 1% fetal bovine serum (FBS) or 0.025% bovine serum albumin (BSA), and the distribution and identity of membrane-bound and soluble products were determined.
(13) 350 (5.4%) required fetal scalp blood sampling for pH (FBS), 236 primigravidae (10.4%) and 114 multigravidae (2.7%) (P less than 0.001).
(14) The acidified fetal bovine serum (FBS) produces a factor which inhibits the adipose differentiation of murine fibroblasts 3T3-F442A.
(15) A protein-free culture system in an ideal method for detecting small quantities of substances which originate from cell lines without interference by FBS.
(16) Acidified FBS was similar to chicken serum in that both supported high rates of cell-mediated fibrinolytic activity.
(17) Stabilization of fetal bovine serum (FBS) acetylcholinesterase (acetylcholine acetylhydrolase, EC 3.1.1.7) (AChE) and human butyrylcholinesterase (acylcholine acylhydrolase, EC 3.1.1.8) (BuChE) by ligands and inhibitors was studied as a function of physical and chemical perturbation.
(18) Purified LGL that were maintained and were subcultured at cell densities of 10(6) cells or greater per milliliter of either SF or FBS-containing medium had equivalent levels of cytotoxicity over a 44-day period in either medium compared with cells subcultured at a density of 5 X 10(5) cells per milliliter of medium.
(19) G-CSF mRNA expression was induced by IL-1, and not by FBS.
(20) NK cells produced a cytotoxic factor (NKCF) in SF medium, and its cytotoxic activity was blocked by 10% FBS.