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Prenatal diagnosis of methylmalonic aciduria. 1975

M J Mahoney, and L E Rosenberg, and B Lindblad, and J Waldenström, and R Zetterström

Prenatal diagnosis using amniocentesis was sought in two midtrimester pregnancies, each at risk for a different type of inherited methylmalonic aciduria. In one pregnancy a normal fetus was diagnosed from studies of cultured amniotic fluid cells and the diagnosis confirmed after the baby was born. In the second pregnancy a fetus with a methylmalonyl-CoA mutase apo enzyme defect was found. The diagnosis was based on cultured cell studies and supported by an elevation of methylmalonate in both amniotic fluid and maternal urine. Confirmatory studies were obtained using cultured cells from the aborted fetus. At the present time, assays of cultured amniotic fluid cells are imperative for firm diagnosis. With more experience, quantities of amniotic fluid and maternal urine methylmalonate may prove sufficient if differentiation among the various types of methylmalonic aciduria is not required.

UI MeSH Term Description Entries
D008314 Malonates Derivatives of malonic acid (the structural formula CH2(COOH)2), including its salts and esters.
D008738 Methyl Ethers A group of compounds that contain the general formula R-OCH3. Ethers, Methyl
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
D011248 Pregnancy Complications Conditions or pathological processes associated with pregnancy. They can occur during or after pregnancy, and range from minor discomforts to serious diseases that require medical interventions. They include diseases in pregnant females, and pregnancies in females with diseases. Adverse Birth Outcomes,Complications, Pregnancy,Adverse Birth Outcome,Birth Outcome, Adverse,Complication, Pregnancy,Outcome, Adverse Birth,Pregnancy Complication
D011262 Pregnancy Trimester, Second The middle third of a human PREGNANCY, from the beginning of the 15th through the 28th completed week (99 to 196 days) of gestation. Midtrimester,Pregnancy, Second Trimester,Trimester, Second,Midtrimesters,Pregnancies, Second Trimester,Pregnancy Trimesters, Second,Second Pregnancy Trimester,Second Pregnancy Trimesters,Second Trimester,Second Trimester Pregnancies,Second Trimester Pregnancy,Second Trimesters,Trimesters, Second
D011296 Prenatal Diagnosis Determination of the nature of a pathological condition or disease in the postimplantation EMBRYO; FETUS; or pregnant female before birth. Diagnosis, Prenatal,Fetal Diagnosis,Fetal Imaging,Fetal Screening,Intrauterine Diagnosis,Antenatal Diagnosis,Antenatal Screening,Diagnosis, Antenatal,Diagnosis, Intrauterine,Prenatal Screening,Antenatal Diagnoses,Antenatal Screenings,Diagnosis, Fetal,Fetal Diagnoses,Fetal Imagings,Fetal Screenings,Imaging, Fetal,Intrauterine Diagnoses,Prenatal Diagnoses,Prenatal Screenings,Screening, Antenatal,Screening, Fetal,Screening, Prenatal
D011422 Propionates Derivatives of propionic acid. Included under this heading are a broad variety of acid forms, salts, esters, and amides that contain the carboxyethane structure. Propanoate,Propanoic Acid,Propionate,Propanoates,Propanoic Acid Derivatives,Propanoic Acids,Propionic Acid Derivatives,Propionic Acids,Acid, Propanoic,Acids, Propanoic,Acids, Propionic,Derivatives, Propanoic Acid,Derivatives, Propionic Acid
D002250 Carbon Radioisotopes Unstable isotopes of carbon that decay or disintegrate emitting radiation. C atoms with atomic weights 10, 11, and 14-16 are radioactive carbon isotopes. Radioisotopes, Carbon
D002478 Cells, Cultured Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. Cultured Cells,Cell, Cultured,Cultured Cell
D003038 Cobamides Deoxyadenosinecobalamins,Vitamin B 12 Coenzymes,Vitamin B12 Coenzymes,B12 Coenzymes, Vitamin,Coenzymes, Vitamin B12

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