G L Solomons

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The formation of naringinase, a glycolytic enzyme produced by Aspergillus niger, is repressed by glucose. Production of the enzyme is decreased below pH 4.0 and is stimulated by the presence of substrate. Fermentation conditions are described which cause the formation of the enzyme in approximately a fivefold greater concentration than that previously(More)
The impact of mycotoxins on human and animal health is now increasingly recognised. Mycotoxin entry to the human and animal dietary systems is mainly by ingestion but increasing evidence also points at entry by inhalation. Mycotoxins exhibit a wide array of biological effects and individual mycotoxins can be mutagenic, carcinogenic, embryotoxic,(More)
A case is reported of malignant melanoma presenting as a mass in the head of the pancreas producing obstructive jaundice. On MR imaging the mass displayed signal characteristics not typical of adenocarcinoma but instead exhibited a low signal on T2-weighted images and early phase dynamic enhancement, the combination of which should suggest the possibility(More)
Infant motor development was studied in three socio-cultural groups inYucatan, Mexico, using the Denver Developmental Screening Test f9DDSTF0 AND THEBayley Infant Motor Scale. Eight infants f9four boys and four girlsf0 at each monthof age from two weeks to one year and two weeks were examined in each group, a total of 288infants f996 in each groupf0. There(More)