Results 221 to 230 of about 26,428 (238)

Species differences in the intestinal transport of p-aminobenzoic acid

Comparative Biochemistry and Physiology, 1966
Abstract 1. 1. The in vitro small intestine of the rat and hamster did not transport p-aminobenzoic acid (10−6−10−3) against a concentration gradient, while that of the mouse and flying squirrel did. 2. 2. This asymmetric distribution did not exceed that predicted on the basis of the potential differences across the intestine.
Richard P. Spencer, Francia E. Vishno, Kenneth R. Brody   +2 more
openaire   +3 more sources

Production of p-Aminobenzoic Acid by the Tubercle Bacillus

Nature, 1945
MANY workers have claimed that the common sulphanilamides in high concentrations may modify the course of experimental tuberculosis in animals. Much better results have been obtained, however, with the diaminodiphenyl-sulphone and some of its derivatives, for example, promin and diasone.
Bertil Sjögren, Torsten Ekstrand
openaire   +2 more sources

P‐aminobenzoic acid as a sunscreen and its behaviour on the skin

International Journal of Cosmetic Science, 1981
SynopsisPABA (p‐aminobenzoic acid), a highly regarded sunscreening agent, has recently been shown to exhibit different absorption characteristics when applied to excised hairless mouse epidermis than when in dilute alcoholic solution. In the present study the cause of the differences was investigated.The results show that at normal application amounts,
Edward Marlowe, Gordon J. Levee, Robert M. Sayre   +2 more
openaire   +3 more sources

Gravimetric determination of copper(II) with p-aminobenzoic acid

Talanta, 1968
A method has been developed for the gravimetric determination of 20-100 mg of copper(II) with p-aminobenzoic acid. Ag, Hg(II), Pb, Al, Fe(II), Bi, Sb(III) and Sn(II) interfere, but Zn, Co(II), Ni and Cd do not. The precipitate can be weighed after drying at 80-100 degrees , or can be ignited to copper(II) oxide at temperatures above 400 degrees , and ...
P. Marik-Korda, G. Liptay, L. Erdey
openaire   +3 more sources

Plasmodium falciparum: A Homologue of p-Aminobenzoic Acid Synthetase

Experimental Parasitology, 1999
The sulfa drugs are a large group of antibiotics which include the antimalarial sulfadoxine, the sulfonamide component of Fansidar, Sulfadoxine acts synergistically with pyrimethamine, the other component of Fansidar, because it inhibits distinct enzymes of the folate biosynthetic pathway in Plasmodium falciparum (Chulay et al. 1984). Although Fansidar
Tony Triglia, Alan F. Cowman
openaire   +3 more sources

Derivatives of p-aminobenzoic acid and their action on the growth of bacteria

Antonie van Leeuwenhoek, 1953
Various derivatives of P.A.B. obtained by introduction of substituents in the benzene-nucleus have been examined for their action on the growth ofAerobacter aerogenes in a simple synthetic medium and ofDiplococcus pneumoniae in ascites-broth without peptone.
openaire   +3 more sources

p-Aminobenzoic-Acid-Related Compounds and Systemic Lupus

Archives of Dermatology, 1978
To the Editor— Fisher's statement about the cross reaction of glyceryl p-aminobenzoic acid (PABA) with p-aminosalicylic acid, p-phenylenediamine, procaine, and sulfa derivatives should be of interest to clinicians (Archives113:1299-1300, 1977). It is well known that lupus and lupus-like syndromes are more frequently diagnosed presently than in the ...
openaire   +3 more sources

Substituted p-Aminobenzoic Acids

Journal of the American Chemical Society, 1944
Franz Carl Schmelkes, Martin Rubin
openaire   +2 more sources

Metabolites of p-aminobenzoic acid II. p-Amenobenzyl alcohol- A metabolite of p-aminobenzoic acid

Biochimica et Biophysica Acta, 1962
N.H. Sloane, K.G. Untch
openaire   +3 more sources

The biosynthesis of p-aminobenzoic acid from chorismic acid

Biochimica et Biophysica Acta (BBA) - General Subjects, 1964
Margaret I. Gibson, Frank Gibson, Graeme B. Cox   +2 more
openaire   +3 more sources