PubMed · 5518923
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R Lüthy. 1970-05-26. [Clinically significant hyperlipidemia].. https://pubmed.ncbi.nlm.nih.gov/5518923/
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Y-chromosome linked short tandem repeat (STR) loci are inherited as a closely linked haplotype, which appears to remain stable in a given paternal lineage over many generations. In forensic cases, Y-linked STRs are particularly useful for the identification of human remains as well as in rape cases with mixed male/female stain samples. DYS385 is derived from tandemly duplicated segments of the Y chromosome thus giving rise to two fragments of variable length which do not behave like alleles but genotypes. The European DNA Profiling (EDNAP) group has carried out a collaborative exercise among 14 participating laboratories using DYS385 for typing of five unknown bloodstains and a control sample. Furthermore, population data from eight different European countries with samples sizes between 91 and 150 male individuals were collected. The results confirm previous observations that DYS385 is one of the most informative Y-linked STR loci. It could also be demonstrated that reproducible results can be obtained independently from the electrophoretic separation and detection methods used. Thus DYS385 may serve as a useful complementation to the routinely used autosomal STR systems in special cases.
Two allotypes have been identified for each of the IgG subclasses IgG1, IgG2 and IgG3. These allotypes are referred to as G1m(a) and G1m(f), G2m(n) and G2m(-n), and G3m(g) and G3m(b). Using a pool of normal human serum and a combination of preparative electrophoresis, DEAE ion-exchange and protein A-Sepharose chromatography, it was possible to separate G1m(f) from G1m(a), G2m(-n) from G2m(n) and G3m(g) from G3m(b). Purification of G2m(-n) molecules is of special interest as no genetic marker has been found to identify this allotype.
Unexpected and confusing laboratory test results can occur if a blood sample is inadvertently collected following a blood transfusion. A potential for transfusion-acquired hemoglobinopathy exists because heterozygous individuals show no significant abnormalities during the blood donor screening process. Such spurious results are infrequently reported in the medical literature. We report a case of hemoglobin C passively transferred during a red blood cell transfusion. The proper interpretation in our case was assisted by calculations comparing expected hemoglobin C concentration with the measured value. A review of the literature on transfusion-related preanalytic errors is provided.