Elevation of serum cystathionine levels in patients with cobalamin and folate deficiency

Hyperhomocysteinemia: An Independent Risk Factor for Vascular Disease

1991 • 2,191 citations

A Prospective Study of Plasma Homocyst(e)ine and Risk of Myocardial Infarction in US Physicians

1992 • 1,686 citations

Methionine metabolism in mammals

1990 • 1,463 citations

Neuropsychiatric Disorders Caused by Cobalamin Deficiency in the Absence of Anemia or Macrocytosis

1988 • 1,306 citations

Disorders of transsulfuration

1989 • 1,053 citations

Neurologic Aspects of Cobalamin Deficiency

1991 • 761 citations

The pathogenesis of homocysteinemia: interruption of the coordinate regulation by S-adenosylmethionine of the remethylation and transsulfuration of homocysteine

1992 • 562 citations

Homocystinuria: An Enzymatic Defect

1964 • 515 citations

Metabolic Abnormalities Detected in a Survey of Mentally Backward Individuals in Northern Ireland

1962 • 494 citations

Elevation of total homocysteine in the serum of patients with cobalamin or folate deficiency detected by capillary gas chromatography-mass spectrometry.

1988 • 479 citations

Methionine metabolism in mammals. Distribution of homocysteine between competing pathways.

1984 • 414 citations

Diagnosis of cobalamin deficiency I: Usefulness of serum methylmalonic acid and total homocysteine concentrations

1990 • 355 citations

Methionine metabolism in mammals. Adaptation to methionine excess.

1986 • 339 citations

Clinical spectrum and diagnosis of cobalamin deficiency [see comments]

1990 • 292 citations

Quantitation of total homocysteine, total cysteine, and methionine in normal serum and urine using capillary gas chromatography-mass spectrometry

1987 • 291 citations

Activation of cystathionine synthase by adenosylmethionine and adenosylethionine

1975 • 277 citations

A Syndrome of Methylmalonic Aciduria, Homocystinuria, Megaloblastic Anemia and Neurologic Abnormalities in a Vitamin B₁₂-Deficient Breast-Fed Infant of a Strict Vegetarian

1978 • 272 citations

Homocystinuria associated with decreased methylenetetrahydrofolate reductase activity

1972 • 232 citations

Folate-Responsive Homocystinuria and “Schizophrenia”

1975 • 214 citations

Labile methyl group balances in the human: The role of sarcosine

1980 • 206 citations

Assay of methylmalonic acid in the serum of patients with cobalamin deficiency using capillary gas chromatography-mass spectrometry.

1986 • 181 citations

l-CYSTATHIONINE IN HUMAN BRAIN

1958 • 179 citations

Allosteric inhibition of methylenetetrahydrofolate reductase by adenosylmethionine. Effects of adenosylmethionine and NADPH on the equilibrium between active and inactive forms of the enzyme and on the kinetics of approach to equilibrium.

1987 • 159 citations

A derangement in B12 metabolism associated with homocystinemia, cystathioninemia, hypomethioninemia and methylmalonic aciduria

1970 • 147 citations

Homocystinuria with methylmalonic aciduria: Two cases in a sibship

1970 • 137 citations

Atypical cobalamin deficiency. Subtle biochemical evidence of deficiency is commonly demonstrable in patients without megaloblastic anemia and is often associated with protein-bound cobalamin malabsorption.

1987 • 104 citations

Effect of Vitamin B6 Depletion in Adult Man on the Excretion of Cystathionine and Other Methionine Metabolites

1970 • 101 citations

Determination of plasma homocysteine by high-performance liquid chromatography with fluorescence detection

1989 • 100 citations

THE VITAMIN B6 DEFICIENCY SYNDROME IN HUMAN INFANCY: BIOCHEMICAL AND CLINICAL OBSERVATIONS

1963 • 94 citations

Importance of low serum vitamin B12 and red cell folate concentrations in elderly hospital inpatients.

1985 • 54 citations

Cerebrospinal fluid methylmalonic acid levels in normal subjects and patients with cobalamin deficiency

1991 • 43 citations

HOMOCYSTINURIA AND ORGANIC ACIDURIA IN A PATIENT WITH VITAMIN-B12 DEFICIENCY

1969 • 41 citations

Effect of Vitamin B6 Depletion in Adult Man on the Plasma Concentration and the Urinary Excretion of Free Amino Acids

1971 • 40 citations

Studies of Functional Neural Tumors II. Cystathioninuria

1963 • 35 citations

Cystathioninemia: A benign genetic condition

1970 • 31 citations

Cystathioninuria not Associated with Vitamin B<sub>6</sub> Dependency: A Probably New Type of Cystathioninuria

1968 • 27 citations

Recognition of deficiency of vitamin B12 using measurement of serum concentration.

1986 • 26 citations

High-performance liquid chromatography of cystathionine, lanthionine and aminoethylcysteine using o-phthaldialdehyde precolumn derivatization

1989 • 24 citations

Effect of vitamin B12-deficiency on the activity of hepatic cystathionine .BETA.-synthase in rats.

1989 • 14 citations

Cystathioninuria in premature infants

1972 • 12 citations

Renal excretion of cystathionine and creatinine in humans at different ages

1978 • 10 citations

Cystathioninuria During a Load of Thyroxine

1964 • 9 citations

The influence of vitamin B-6 on cystathioninuria in premature infants

1978 • 8 citations

Isonicotinic acid hydrazide and pyridoxine deficiency.

1974 • 8 citations

Recurrent urinary tract calculi possibly due to inherited cystathioninuria.

1973 • 2 citations