Search Results - "Vermaak, W. J. H."

Extruded dry beans and serum lipoprotein and plasma haemostatic factors in hyperlipidaemic men by OOSTHUIZEN, W, SCHOLTZ, C. S, VORSTER, H. H, JERLING, J. C, VERMAAK, W. J. H

“…To examine the effects of the inclusion of extruded dry beans in the diet on serum lipoprotein, plasma fibrinogen, plasma viscosity and plasminogen activator…”
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Gas chromatographic–mass spectrometric method for quantitation of phenylalanine and tyrosine in serum by Laurens, J.B, Mbianda, X.Y, Ubbink, J.B, Vermaak, W.J.H

“…A validated gas chromatographic–mass spectrometric method for quantitation of phenylalanine and tyrosine in serum is described. Quantitation of phenylalanine…”
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Lecithin has no effect on serum lipoprotein, plasma fibrinogen and macro molecular protein complex levels in hyperlipidaemic men in a double-blind controlled study by OOSTHUIZEN, W, VORSTER, H. H, VERMAAK, W. J. H, SMUTS, C. M, JERLING, J. C, VELDMAN, F. J, BURGER, H. M

“…To examine the effects of lecithin on serum lipoprotein, plasma fibrinogen and macro molecular protein complex (MPC) levels. Twenty free living hyperlipidaemic…”
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The determination of allantoin, a possible indicator of oxidant status, in human plasma by Lagendijk, J, Ubbink, J B, Vermaak, W J

“…Because uric acid may be oxidized to allantoin by various reactive oxygen species, it is postulated that uric acid functions as an antioxidant in human bodily…”
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Adenosine deaminase isoenzymes in typhoid fever by UNGERER, J. P. J, BURGER, H. M, BISSBORT, S. H, VERMAAK, W. J. H

“…The activity of serum adenosine deaminase and its isoenzymes (ADA1 and ADA2) was measured in the sera of 55 patients with clinically diagnosed typhoid fever,…”
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Soluble-fibre concentrate lowers plasminogen activator inhibitor-1 in baboons (Papio ursinus) by Venter, C. S., Nel, C. J., Vorster, H. H., Jerling, J. C., Oosthuizen, W., Veldman, F. J., Kellerman, J. A., Smuts, C. M., Vermaak, W. J. H., Van Der Nest, D. G., Ridder, J. H.

“…The effects of a soluble NSP (fibre) concentrate (SFC) on plasma fibrinogen and plasminogen activator inhibitor-1 (PAI-1), serum and liver lipids and…”
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Vitamin requirements for the treatment of hyperhomocysteinemia in humans by Ubbink, J B, Vermaak, W J, van der Merwe, A, Becker, P J, Delport, R, Potgieter, H C

“…We have previously shown that a modest vitamin supplement containing folic acid, vitamin B-12 and vitamin B-6 is effective in reducing elevated plasma…”
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Fatty acid induced changes in circulating total and free thyroid hormones: in vivo effects and methodological artefacts by VERMAAK, W. J. H, KALK, W. J, KUYL, J. M, SMIT, A. M

“…Elevated levels of nonesterified fatty acids (NEFA) are frequently found in acute illnesses, and they may contribute to changes in serum thyroid hormone…”
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Homocysteine and ischaemic heart disease in the Caerphilly cohort by Ubbink, Johan B, Fehily, Ann M, Pickering, Janet, Elwood, Peter C, Hayward Vermaak, W.J

“…Elevated circulating total homocyst(e)ine concentrations are associated with a higher prevalence of ischaemic heart disease (IHD). We utilized data from the…”
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Effect of changes in epidemiological factors on the composition and racial distribution of renal calculi by Beukes, G J, de Bruiyn, H, Vermaak, W J

“…One thousand and two calculi, which occurred in both black and white patients during a 15-year period, have been analysed by the X-ray diffraction technique…”
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Compartmentalization of pyridoxal-5'-phosphate during the acute phase of myocardial infarction by Vermaak, W J, Barnard, H C, Van Dalen, E M, Potgieter, G M, Van Jaarsveld, H, Myburgh, S J

“…Vitamin B6 nutritional status is assessed by measuring the plasma concentration of one of its vitamers, pyridoxal-phosphate (PLP). Several conditions, e.g.,…”
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Serum adenosine deaminase: isoenzymes and diagnostic application by Ungerer, J P, Oosthuizen, H M, Bissbort, S H, Vermaak, W J

“…Human adenosine deaminase (ADA; EC 3.5.4.4) consists of three isoenzymes: ADA1, ADA1+CP, and ADA2. We developed an electrophoretic technique to distinguish…”
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Results of B-vitamin supplementation study used in a prediction model to define a reference range for plasma homocysteine by Ubbink, J B, Becker, P J, Vermaak, W J, Delport, R

“…Because high plasma concentrations of homocysteine constitute an enhanced risk for premature coronary heart disease, it is necessary to establish a reference…”
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Comparison of Three Different Plasma Homocysteine Assays with Gas Chromatography–Mass Spectrometry by Ubbink, Johan B, Delport, Rhena, Riezler, Reiner, Vermaak, W.J. Hayward

“…Various methods are available to measure plasma total homocyst(e)ine (tHcy) concentrations, but whether plasma tHcy assays may be used interchangeably is not…”
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Validated method for quantitation of biomarkers for benzene and its alkylated analogues in urine by Laurens, J.B, Mbianda, X.Y, Spies, J.H, Ubbink, J.B, Vermaak, W.J.H

“…A validated gas chromatography–mass spectrometric method for the analysis of the metabolites of benzene and its alkylated analogues in urine is reported. A…”
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Effective homocysteine metabolism may protect South African blacks against coronary heart disease by Ubbink, JB, Vermaak, WJ, Delport, R, van der Merwe, A, Becker, PJ, Potgieter, H

“…L-Methionine (0.1 g/kg body wt) was administered to young white [n = 18; mean (+/- SD) age 20.0 +/- 1.0 y] and black [n = 12; mean (+/- SD) age 22.0 +/- 1.3 y]…”
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Analytical Quality of Near-Patient Blood Cholesterol and Glucose Determinations by du Plessis, Marita, Ubbink, Johan B, Vermaak, W.J. Hayward

“…Screening for diabetes and hypercholesterolemia is widely advocated, and extra-laboratory testing could play a major role in cost-effective population…”
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The effect of blood sample aging and food consumption on plasma total homocysteine levels by Ubbink, J B, Vermaak, W J, van der Merwe, A, Becker, P J

“…The stability of homocysteine in whole blood and plasma was investigated. Total homocysteine concentrations in whole blood increased rapidly to values in…”
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Folate status, homocysteine metabolism, and methylene tetrahydrofolate reductase genotype in rural south african blacks with a history of pregnancy complicated by neural tube defects by Ubbink, Johan B., Christianson, Arnold, Bester, Megan J., Van Allen, Margot I., Venter, Philip A., Delport, Rhena, Blom, Henk J., Merwe, Annatjie van der, Potgieter, Hendrik, Vermaak, W.J. Hayward

“…The birth incidence of neural tube defects (NTDs) in South Africa is threefold to sixfold higher in rural compared with urban blacks. We investigated whether…”
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Lamellar body counts--a rapid, reliable and cost-effective primary assay for fetal lung maturity determination by Viljoen, A, Vermaak, W J H

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