Darkening of Gray Hair During Para-Amino-Benzoic Acid Therapy*
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چکیده
منابع مشابه
Manganese and Cobalt Salts of Para-Amino-Benzoic Acid Supported on Silica Gel as Oxidizing Catalysts
Para-Aminobenzoic acid is supported on silica gel via reaction of activated silica gel and p-aminobenzoic acid which is then converted to its manganese and cobalt salts. A mixture of the manganese and cobalt salts of the acid is used to catalyze allylic and benzylic alcohols to their corresponding carbonyl compounds in reasonable yields using oxygen or air. Reactions are clean and the catal...
متن کاملmanganese and cobalt salts of para-amino-benzoic acid supported on silica gel as oxidizing catalysts
para-aminobenzoic acid is supported on silica gel via reaction of activated silica gel and p-aminobenzoic acid which is then converted to its manganese and cobalt salts. a mixture of the manganese and cobalt salts of the acid is used to catalyze allylic and benzylic alcohols to their corresponding carbonyl compounds in reasonable yields using oxygen or air. reactions are clean and the catalysts...
متن کاملHemolytic Anemia and Other Side Effects of Para-amino Benzoic Acid in an 8-Year-Old Girl
Background: Para-amino benzoic acid (PABA) is an important ingredient used as a structure moiety in drugs with wide range of therapeutic uses; however, its safety and possible side effects in young children have not been determined. Case Presentation: An 8-year-old girl was admitted to the emergency department for paleness, jaundice, abdominal pain and nausea associated with Hemoglubin (Hb) =4...
متن کاملDesign , synthesis and antimicrobial evaluation of para amino benzoic acid derivatives
In the present study, some ester and amide derivatives (1-23) of para-amino benzoic acid were synthesized. All the compounds were physicochemically characterized and evaluated for antimicrobial activity against Gram positive bacteria Staphylococcus aureus, Staphylococcus epidermidis, Gram negative bacteria Salmonella enterica, Pseudomonas aeruginosa and fungal strain Candida albicans by agar we...
متن کاملPigment Production by Neurospora crassa in the Presence of para-Amino-benzoic Acid.
Recent investigations of altered sulfonamide responses in Neurospora crassa (Emerson and Cushing, 1946) have disclosed that high concentrations of paminobenzoic acid (PABA) depressed and even inhibited the growth rate of various strains studied. The present paper reports observations upon a pigment produced by Neurospora crassa when growing in "minimal" medium (Beadle and Tatum, 1945) supplemen...
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ژورنال
عنوان ژورنال: Journal of Investigative Dermatology
سال: 1950
ISSN: 0022-202X
DOI: 10.1038/jid.1950.121