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Plasma/serum protein patterns in human fetuses and infants: a study by high-resolution two-dimensional polyacrylamide gel electrophoresis. 1993

J D Tissot, and P Hohlfeld, and F Forestier, and J F Tolsa, and D F Hochstrasser, and A Calame, and E Plouvier, and H Bossart, and P Schneider
Centre de Transfusion Sanguine, Universitaire Vaudois, Lausanne, Switzerland.

Plasma/serum proteins of fetal blood samples (N = 88) obtained under ultrasound guidance between the 18th and the 39th week of pregnancy, of blood samples collected from premature infants (N = 19), newborns at term (N = 20) and children of less than 5 years of age (N = 55) were analysed by high-resolution two-dimensional polyacrylamide gel electrophoresis. By comparison with adult 'reference' protein maps, tens of different proteins (and some of their genetic variants) were identified on the electrophoretograms. After the 18th week of gestation, albumin, transferrin, Factor B, glu- and lys-plasminogen, antithrombin III, Gc-globulin, alpha 1-antitrypsin, alpha 2-HS-glycoprotein, several apolipoproteins (apo A-I, A-II, A-IV, C-II, C-III, D, E, J), retinol-binding protein, transthyretin and alpha-fetoprotein could be observed. During intrauterine life, the size of the spots corresponding to alpha-fetoprotein progressively decreased, whereas the protein pattern globally showed an increase in the number and in the size of the spots. These modifications were particularly apparent in the regions of the electrophoretograms restricted to the heavy and light chains of IgG and to alpha 1-antichymotrypsin. In addition, we observed an unidentified fetal polypeptide characterized by an apparent molecular weight (M(r)) of 46 kDa (P46) and a pI of 5.0. P46 was present in all fetuses and all infants of less than 2 years of age.(ABSTRACT TRUNCATED AT 250 WORDS)

UI MeSH Term Description Entries
D007223 Infant A child between 1 and 23 months of age. Infants
D007231 Infant, Newborn An infant during the first 28 days after birth. Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D007234 Infant, Premature A human infant born before 37 weeks of GESTATION. Neonatal Prematurity,Premature Infants,Preterm Infants,Infant, Preterm,Infants, Premature,Infants, Preterm,Premature Infant,Prematurity, Neonatal,Preterm Infant
D010641 Phenotype The outward appearance of the individual. It is the product of interactions between genes, and between the GENOTYPE and the environment. Phenotypes
D011110 Polymorphism, Genetic The regular and simultaneous occurrence in a single interbreeding population of two or more discontinuous genotypes. The concept includes differences in genotypes ranging in size from a single nucleotide site (POLYMORPHISM, SINGLE NUCLEOTIDE) to large nucleotide sequences visible at a chromosomal level. Gene Polymorphism,Genetic Polymorphism,Polymorphism (Genetics),Genetic Polymorphisms,Gene Polymorphisms,Polymorphism, Gene,Polymorphisms (Genetics),Polymorphisms, Gene,Polymorphisms, Genetic
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D001797 Blood Protein Electrophoresis Electrophoresis applied to BLOOD PROTEINS. Hemoglobin Electrophoresis,Electrophoresis, Blood Protein,Electrophoresis, Hemoglobin,Protein Electrophoresis, Blood
D001798 Blood Proteins Proteins that are present in blood serum, including SERUM ALBUMIN; BLOOD COAGULATION FACTORS; and many other types of proteins. Blood Protein,Plasma Protein,Plasma Proteins,Serum Protein,Serum Proteins,Protein, Blood,Protein, Plasma,Protein, Serum,Proteins, Blood,Proteins, Plasma,Proteins, Serum
D002675 Child, Preschool A child between the ages of 2 and 5. Children, Preschool,Preschool Child,Preschool Children
D005069 Evaluation Studies as Topic Works about studies that determine the effectiveness or value of processes, personnel, and equipment, or the material on conducting such studies. Critique,Evaluation Indexes,Evaluation Methodology,Evaluation Report,Evaluation Research,Methodology, Evaluation,Pre-Post Tests,Qualitative Evaluation,Quantitative Evaluation,Theoretical Effectiveness,Use-Effectiveness,Critiques,Effectiveness, Theoretical,Evaluation Methodologies,Evaluation Reports,Evaluation, Qualitative,Evaluation, Quantitative,Evaluations, Qualitative,Evaluations, Quantitative,Indexes, Evaluation,Methodologies, Evaluation,Pre Post Tests,Pre-Post Test,Qualitative Evaluations,Quantitative Evaluations,Report, Evaluation,Reports, Evaluation,Research, Evaluation,Test, Pre-Post,Tests, Pre-Post,Use Effectiveness

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