Urinary excretion levels of unconjugated pterins in cancer patients and normal individuals

Increased CTP synthetase activity in cancer cells

1978 • 140 citations

Altered urinary excretion of pteridines in neoplastic disease. Determination of biopterin, neopterin, xanthopterin, and pterin

1980 • 80 citations

Pterins in Human Urine

1972 • 70 citations

Folate and pterin metabolism by cancer cells in culture.

1978 • 54 citations

Quantitative determination of pterins in biological fluids by high-performance liquid chromatography

1980 • 43 citations

Norrish type II analogous photodegradation of neopterin and biopterin to 5,8 -dihydropterin-6-aldehyde

1977 • 37 citations

Separation of unconjugated pteridines by high-pressure cation-exchange liquid chromatography

1979 • 37 citations

Biosynthesis of Biopterin by Chinese Hamster Ovary (CHO K1) Cell Culture

1974 • 31 citations

On the levels of phenylalanine, tyrosine and tetrahydrobiopterin in the blood of tumor-bearing organisms.

1977 • 26 citations

Enhanced urinary excretion of 7,8-dihydro-6-hydroxylumazine by mice bearing the ehrlich ascites tumour

1979 • 23 citations