Über die Haltbarkeit von Plasmalipiden unter verschiedenen Lagerungsbedingungen

Mühlfellner, O; Mühlfellner, G; Zöfel, P.; Kaffarnik, H

doi:10.1515/cclm.1972.10.1.37

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…Sera from the Finns were analysed after 1-3 weeks of storage and sera from the Lapps after 1-2 years of storage. Storage at -20°C apparently does not affect serum cholesterol and TG values (37,38). Assay methods.…”

Section: Methodsmentioning

confidence: 99%

Serum Cholesterol and Triglyceride Concentrations of Finns and Finnish Lapps

Aromaa

Björkstén

Eriksson

et al. 1975

Journal of Internal Medicine

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Serum cholesterol and triglyceride (TG) concentrations have been studied in six Finnish population groups in South and East Finland and in one group of Finnish Lapps in North Finland. Altogether I 1 626 Finns, aged 15 or above and 828 Lapps of all ages were studied. Serum cholesterol and TG concentrations of the Lapp children were higher in the age group W than in the age groups 5-9 and 10-14. Mean serum cholesterol of girlsaged 0-9 was higher than that of the boys. The sex and age dependence of mean lipid values in the adults were in several respects similar to those observed in other industrialized populations. The serum cholesterol mean rose with age to reach a maximum in age group 50-59 in men, in age group 60-69 in women. Among the adults, women had lower cholesterol means than men only in age groups 30-39 and 40-49. The serum TG distribution was markedly skewed, and logarithmic transformation brought it closer to normal. Maximal log(TG) values (> 12 hours' fast) were attained by men aged 30-39 and by women aged 60-69. Men had considerably higher TG levels than women in middle-aged groups. Of all the sex and age groups studied, the men aged 30-39 had the most skewed cholesterol frequency distribution. Up to this age variability in men's cholesterol values also increased, as reflected by an increasing S.D. As to women, the cholesterol S.D. increased until the age of 60-69. In all the age groups above 14 years, the variability of TG values was larger in men than in women, but it was not age dependent. 2-752981Arta med. scand. 198

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Section: Methodsmentioning

confidence: 99%

Serum Cholesterol and Triglyceride Concentrations of Finns and Finnish Lapps

Aromaa

Björkstén

Eriksson

et al. 1975

Journal of Internal Medicine

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“…Während die Lagerungsverluste von CK, Glucose, HBDH und LDH bekannte Phänomene sind, ist der Anstieg von Calcium, Triglyceriden und Cholesterin wahrscheinlich über einen analytischen Trend zu erklären (3,4). Die Lagerung führte zu einem hohen zufälligen Fehler, der nicht über das lineare Modell erklärbar ist, bei den Parametern Calcium, Cholesterin, CHE.…”

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Einfluß von thermischer und mechanischer Belastung auf 17 klinisch-chemische Parameter

Koch.¹,

Burkhardt²,

Wepler³

et al. 1983

LaboratoriumsMedizin

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The effect of thermical and mechanical load on 17 clinical-chemical parameters was studied during the storage of serumspecimen at +4° C for 48 hours or transport by post or car. It could be shown, that for the most parameters the main influence on precision and accuracy of the analyses was based on the storage and not on the transport of the specimen. The time for storage can be minimised by car-transport. The transport by post, however, leads always to a storage for 24-48 hours by various temperatures. Therefor the transport by post has to account the influence by the storage of the specimen.

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Metrological traceability of values for catalytic concentration of enzymes assigned to a calibration material

Canalías¹,

Camprubí²,

Sánchez³

et al. 2006

Clinical Chemistry and Laboratory Medicine (CCLM)

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Background:The metrological traceability of values for the catalytic concentration of several enzymes assigned to a calibration material has been assured by following the recently published International Standard ISO 18153. Methods: A traceable value with a measurement uncertainty was assigned for the catalytic concentration of alanine aminotransferase, creatine kinase, g-glutamyltransferase and lactate dehydrogenase in two materials from different sources. These are all measurable quantities, with the primary reference measurement procedure described by the International Federation of Clinical Chemistry and Laboratory Medicine (IFCC) and a primary calibrator giving metrological traceability to the SI unit of measurement. The metrologically traceable calibration was validated by measuring human serum samples using the primary reference measurement procedure and a routine commercial measurement procedure calibrated with the traceable materials. Results: Results showed that the primary reference procedure, selected manufacturers' procedures and the end-user's routine procedure for each enzyme have the same analytical specificity. Four of eight commercial calibrators tested were commutable, whereas the others had a very small difference in absolute terms, indicating that these materials would be useful for calibration. Conclusion: The implementation of a reference system for enzyme measurements was demonstrated that assures the traceability of patient results to SI units.

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Über die Haltbarkeit von Plasmalipiden unter verschiedenen Lagerungsbedingungen

Cited by 3 publications

References 4 publications

Serum Cholesterol and Triglyceride Concentrations of Finns and Finnish Lapps

Serum Cholesterol and Triglyceride Concentrations of Finns and Finnish Lapps

Einfluß von thermischer und mechanischer Belastung auf 17 klinisch-chemische Parameter

Metrological traceability of values for catalytic concentration of enzymes assigned to a calibration material

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