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- Stenman, U H, et al.
(author)
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Summary report of the TD-3 workshop: characterization of 83 antibodies against prostate-specific antigen
- 1999
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In: Tumor Biology. - : Springer Science and Business Media LLC. - 1423-0380 .- 1010-4283. ; 20:Suppl. 1, s. 1-12
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Journal article (peer-reviewed)abstract
- Twelve research groups participated in the ISOBM TD-3 Workshop in which the reactivity and specificity of 83 antibodies against prostate-specific antigen (PSA) were investigated. Using a variety of techniques including cross-inhibition assays, Western blotting, BIAcore, immunoradiometric assays and immunohistochemistry, the antibodies were categorized into six major groups which formed the basis for mapping onto two- and three-dimensional (2-D and 3-D) models of PSA. The overall findings of the TD-3 Workshop are summarized in this report. In agreement with all participating groups, three main antigenic domains were identified: free PSA-specific epitopes located in or close to amino acids 86-91; discontinuous epitopes specific for PSA without human kallikrein (hK2) cross-reactivity located at or close to amino acids 158-163; and continuous or linear epitopes shared between PSA and hK2 located close to amino acids 3-11. In addition, several minor and partly overlapping domains were also identified. Clearly, the characterization of antibodies from this workshop and the location of their epitopes on the 3-D model of PSA illustrate the importance of selecting appropriate antibody pairs for use in immunoassays. It is hoped that these findings and the epitope nomenclature described in this TD-3 Workshop are used as a standard for future evaluation of anti-PSA antibodies.
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- Grimvall, E, et al.
(author)
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Monitoring of polychlorinated biphenyls in human blood plasma: methodological developments and influence of age, lactation, and fish consumption
- 1997
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In: Archives of Environmental Contamination and Toxicology. - : Springer Science and Business Media LLC. - 0090-4341 .- 1432-0703. ; 32:3, s. 329-336
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Journal article (peer-reviewed)abstract
- Human plasma samples from 50 wives of fishermen have been analyzed with respect to PCBs. The non-ortho-substituted PCB congeners CB-126 and CB-169 were determined by mass spectrometry in negative ion chemical ionization mode, which demonstrated a limit of detection of 30 fg. The recoveries of the internal standards used for determination of ortho-substituted CBs were approximately 95%. Two methods, one gravimetric and the other based on enzymatic determinations of triglycerides, cholesterol and phospholipids, were compared for the determination of total amount of lipids in the plasma samples; the correlation coefficient was 0.82 and the slope 0.98. For practical reasons, enzymatic determinations are recommended for further use. The total, lipid-adjusted concentrations of PCBs in plasma were influenced by age, total lactation time and consumption of fatty fish from the Baltic Sea.
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- Thulin, T, et al.
(author)
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Long-term effects of diltiazem and atenolol on blood glucose, serum lipids, and serum urate in hypertensive patients. Swedish-Finnish Study Group
- 1999
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In: International Journal of Clinical Pharmacology and Therapeutics. - 0946-1965. ; 37:1, s. 28-33
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Journal article (peer-reviewed)abstract
- The purpose of this long-term treatment study was to evaluate health-related quality of life by comparing the effects of diltiazem and atenolol on some important metabolic parameters. SUBJECTS, MATERIAL AND METHODS: In a Swedish-Finnish long-term multicenter study 256 patients with mild to moderate hypertension were randomized to treatment with diltiazem retard (D) (n = 127) or atenolol (A) (n = 129). Doses could be increased and additional captopril medication be given to achieve adequate blood pressure (BP) reduction. The treatment in group D lasted for two years while group A was treated for 1 year and then was given D for another 2 years. RESULTS: After 1 year BP was significantly reduced in both groups and to a similar degree. The BP reduction was maintained during the rest of the study. After 1 and 2 years, HDL had increased significantly (p < 0.001) in group D. There was a corresponding significant reduction of the LDL/HDL ratio. In group A there were no changes after 1 year regarding lipoprotein levels. After the switch to D, group A showed similar improvements regarding HDL and the LDL/HDL ratio as the original D group. CONCLUSION: It is concluded that D and A are equally effective in lowering BP. However, long-term treatment with D, but not with A, has a favorable effect on HDL concentrations and the LDL/HDL ratio. According to these findings D affects the risk factor profile in hypertension.
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