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Biomedical subjects

K W Lam

Publications and source records attributed to K W Lam.

At least 109 records · Page 6Linked to original sources
PubMed1975

Lymphocyte-induced vitreous membranes: a comparative study with leukocyte- and platelet-induced vitreous membranes.

Vitreous membranes were induced in rabbit eyes by injecting an autogenous lymphocyte preparation. These membranes were compared with membranes induced by autogenous leukocyte and platelet preparations. Lymphocytes gave rise to faint, nonprogressive membranes, while leukocytes and platelets produced dense, long-standing membranes. It is suggested that lymphocytes may not be the cause of this weak response, as other cells in the preparation may be involved.

Animals↗
PubMed1975

Subretinal fluids: lipid analyses.

Lipid was found to accumulate in the subretinal space during rhegnatogenous retinal detachment. The concentration of lipid in the subretinal fluid varied between 0.1 to 2.4 mg. per milliliter. Based upon a comparison of lipid profiles and lipoprotein profiles, the amount of lipid observed in the subretinal fluids was not directly related to the permeability of the ocular vessels. Thin-layer chromatography analyses of lipid in subretinal fluids showed differences between the lipid composition of the subretinal fluid and blood. The major characteristic of lipid composition of subretinal fluid is the low concentration of lecithin, which is the major lipid compound in the serum. The present data indicate that the lipids of ocular tissues are released into the subretinal space during rhegmatogenous retinal detachment, and are adsorbed on albumin.

Adsorption↗
PubMed1975

Analysis of ascorbate concentration in the aqueous humor by high-pressure liquid chromatography.

A high-pressure liquid chromatography instrument has been used to establish a method for the analyses of ascorbate concentration in aqueous humor. The method detects only the reduced form of ascorbate. The values obtained by this method are very similar to those of the colorimetric method. The ascorbate value in a group of random samples obtained from human glaucoma eyes varied between 3.5 to 31 mg. per cent, independent to blood ascorbate concentration.

Aqueous Humor↗