Now showing items 51-60 of 263
Quantitation of lipids by charring on thin-layer plates and scintillation quenching: Application to ceramide determination
(Elsevier, 1981-04)
A method is described for the quantitative determination of lipids after separation by thin-layer chromatography: the lipid spots are visualized with a charring spray and the darkness of the spots is determined by measuring ...
Mechanisms of gentamicin-induced dysfunction of renal cortical mitochondria : II. Effects on mitochondrial monovalent cation transport
(Elsevier, 1980-11)
Mitochondrial swelling techniques were used to evaluate the effects of the aminoglycoside antibiotic gentamicin on renal cortical mitochondrial monovalent cation permeability. Gentamicin behaved like EDTA to enhance ...
Serum isocitrate dehydrogenase activity in Reye's syndrome
(Elsevier, 1987-04)
Serum levels of isocitrate dehydrogenase was determined in 12 Reye's syndrome patients and the enzyme levels were compared with serum ornithine carbamyl phosphate, glutamic oxaloacetic transaminase (aspartate aminotransferase), ...
Reactivation and immunological studies on a japanese variant of red cell carbonic anhydrase I, CA I hiroshima-1
(Elsevier, 1982)
1. 1. Under certain conditions, CA I HIR-1++ (86 Asp--> Gly) was inactivated in Gnd-HCl more rapidly than normal CA I.2. 2. After denaturation in 5.0 M Gnd [middle dot] HC1, CA I HIR-1 was reactivated more slowly than ...
Teteraene and pentaene leukotrienes: Selective production from murine mastocytomo cells after dietary manipulation
(Elsevier, 1981-10)
A neoplastic mast cell tumor was grown in mice which had been raised since birth on a diet enriched with eicosapentaenoic acid. Intact harvest mastocytoma cells were stimulated with calcium ionophpore A23187 to produce ...
On the origin of light-induced changes in the proton magnetic relaxation rate of chloroplast thylakoid membrane suspensions
(Elsevier, 1981-03)
The spin-lattice relaxation rate of solvent protons in suspensions of chloroplast thylakoid membranes undergoes a large transient depression following illumination in white light. This change appears to require the presence ...
Inhibition of hepatic aldehyde dehydrogenase by carbon tetrachloride: An in vitro study
(Elsevier, 1985)
1. 1. In vitro inhibition of rat liver mitochondrial and microsomal aldehyde dehydrogenase (ALDH) under conditions of active CCl4 metabolism was investigated.2. 2. Incubation of microsomes or mitochondria in the presence ...
Optical errors in a liquid chromatography absorbance cell
(Elsevier, 1988)
The shadowgraph method is used to visualize mobile phase flow through a liquid chromatography absorbance cell with "Z" flow geometry. It is shown thatmixing is incomplete in the cell. Composition gradients persist throughout ...
Adrenal cortical 11[beta]-hydroxylase and side-chain cleavage enzymes. requirement for the A- or B-pyridyl ring in metyrapone for inhibition
(Elsevier, 1985-01)
The adrenal cortical enzyme systems, 11[beta]-hydroxylase, P-45011[beta], and the side-chain cleavage complex, P-450 sec, differ only in their cytochrome P-450s. Structural modifications of metyrapone, an inhibitor of ...
Binding of hydrophobic ligands to plant lectins: Titration with arylaminonaphthalenesulfonates
(Elsevier, 1983-07-15)
Binding of the Hydrophobic ligands 1,8-anilinonaphthalenesulfonic acid (ANS) and 2,6-toluidinylnaphthalenesulfonic acid (TNS) to a variety of plant lectins was studied by lectin-induced alteration of the fluorescence spectra ...