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Biomedical subjects

J Rawlings

Publications and source records attributed to J Rawlings.

42 records · Page 3Linked to original sources

A double blind controlled trial of a new anorectic agent AN448.

AN448 is a new anorectic agent, which in the dose used, is without the CNS stimulant properties of the amphetamines. Patients entering the trial were a highly resistant group at least 20 percent above ideal weight chosen from an ischaemic-hyperlipidaemic clinic population. In a double blind trial of 12 patients on the active drug and nine patients on placebo, a highly significant weight loss occurred over 12 weeks in the active group only. A significant reduction in serum cholesterol occurred independently of weight loss but there was no reduction in the serum triglycerides and no change in the lipoprotein electrophoretic pattern. The drug is shown to be effective for this group of patients and may also be useful as a cholesterol lowering agent.

Appetite Depressants↗

Low Temperature Electronic Absorption Spectra of Oxidized and Reduced Spinach Ferredoxins. Evidence for Nonequivalent Iron(III) Sites.

The electronic absorption spectra of oxidized and reduced spinach ferredoxins have been measured between 1200 and 600 nm at low temperature in D(2)O/ethylene glycol glasses. Relatively weak absorption bands are observed at 720, 820, and 920 nm in oxidized ferredoxin, and at 652, 820, and 920 nm in reduced ferredoxin. The spectral results show that the two Fe(III) centers in oxidized ferredoxin are not equivalent, and that the 820- and 920-nm bands are associated with the nonreducible site. Assignment of the reducible site as tetrahedral Fe(III) is indicated. The 720-nm (13.9 kcm(-1)) band in oxidized ferredoxin is attributed to an intensity-enhanced (6)A(1) --> (4)T(1)d-d transition, whereas the 652-nm (15.3 kcm(-1)) feature of reduced ferredoxin could be due either to (5)E --> (3)T(1) in tetrahedral Fe(II)S(4) or an Fe(II) --> Fe(III) intervalence excitation.

Journal Article↗