摘要:

AbstractThe structure and organization of the human vitamin‐D‐binding protein gene (DBP, group‐specific component, GC) have recently been determined. Each ex‐on may now be amplified by the PCR method using oligonucleotide primers deduced from the intron sequences near their 5′ ends and 3′ ends. In this study we examined the anodal GC variants 1A1 and 2A9. Genomic DNA of the variant 1A1 was obtained from Australian Aborigines and from South African Bantu‐speaking Blacks. Amplification and sequencing of exon 11 of 1A1 revealed a point mutation in codon 429 at the second position. It is remarkable that this mutation was found in the Australian 1A1 variant and in the African 1A1 variant, and raises the question whether the mutation in these two ethnic groups has a common origin. Genomic DNA of the 2A variant called 2A9 was obtained from South Germany and a point mutation also concerning position 429 in exon 11 was found. The nucleotide exchange in this case, however, was at the first position of the codon. The widely distributed genetic polymorphism of DBP/GC is located in exon 11 and is characterized by substitution at amino acid positions 416 and 420. Variant 1A1 is due to a second site mutation of the allele GC*1F; variant 2A9 is due to a mutation in th

ISSN:0042-9007    

DOI:10.1111/j.1423-0410.1995.tb02545.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

摘要:

AbstractAcute posttransfusion hepatitis C was reported in a recipient of 3 units of red cells. The recipient became acutely icteric 6 weeks after transfusion, and HCV infection was diagnosed. Stored serum samples of the 3 implicated donations, which were negative with ELISA‐2, were retested by PCR and 3rd‐generation antibody tests. One implicated donation was PCR positive, but anti‐HCV negative. Both other donations were negative in all tests. The donor was recalled to the Blood Bank 13 weeks after the implicated donation and was found to be ELISA‐3 plus RIBA‐3 positive. Eight months after the implicated donation, the donor is still PCR and RIBA‐3 positive, whereas the recipient became PCR negative but remained anti‐HCV RIBA‐3 positive. The case shows that blood products from donors collected during the open window period of an HCV infection can transmit HC

ISSN:0042-9007    

DOI:10.1111/j.1423-0410.1995.tb02546.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

ISSN:0042-9007    

DOI:10.1111/j.1423-0410.1995.tb02547.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

ISSN:0042-9007    

DOI:10.1111/j.1423-0410.1995.tb02548.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

ISSN:0042-9007    

DOI:10.1111/j.1423-0410.1995.tb02549.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

ISSN:0042-9007    

DOI:10.1111/j.1423-0410.1995.tb02550.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

ISSN:0042-9007    

DOI:10.1111/j.1423-0410.1995.tb02551.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

ISSN:0042-9007    

DOI:10.1111/j.1423-0410.1995.tb02552.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

ISSN:0042-9007    

DOI:10.1111/j.1423-0410.1995.tb02553.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

ISSN:0042-9007    

DOI:10.1111/j.1423-0410.1995.tb02554.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY