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Moderate haemophili...
Moderate haemophilia B in a female carrier caused by preferential inactivation of the paternal X chromosome
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- Kling, S. (författare)
- Lund University,Lunds universitet,Preventiv pediatrik,Forskargrupper vid Lunds universitet,Preventive Paediatrics,Lund University Research Groups,Skåne University Hospital
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- Coffey, A. J. (författare)
- Skåne University Hospital
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- Ljung, R. (författare)
- Lund University,Lunds universitet,Pediatrik, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Pediatrisk hematologi,Forskargrupper vid Lunds universitet,Paediatrics (Lund),Section V,Department of Clinical Sciences, Lund,Faculty of Medicine,Paediatric Haematology Research Unit,Lund University Research Groups,Skåne University Hospital
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- Sjörin, Elsy (författare)
- Lund University,Lunds universitet,Enheten för pediatrisk hematologi,Forskargrupper vid Lunds universitet,Paediatric Hematologic Research Group,Lund University Research Groups
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Nilsson, Inga Marie (författare)
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- Holmberg, L. (författare)
- Lund University,Lunds universitet,Pediatrik, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Paediatrics (Lund),Section V,Department of Clinical Sciences, Lund,Faculty of Medicine,Skåne University Hospital
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- Giannelli, F. (författare)
- Skåne University Hospital
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(creator_code:org_t)
- 2009-04-24
- 1991
- Engelska.
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Ingår i: European Journal of Haematology. - : Wiley. - 0902-4441 .- 1600-0609. ; 47:4, s. 257-261
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The case of a female with moderate haemophilia B is reported. She is the only affected member of her family, and factor IX RFLP analysis shows her to have inherited no maternal markers for polymorphisms located in the first intron and 8 Kb 3' of the polyadenylation signal (DdeI and HhaI, respectively). This clearly indicates a deletion involving at least the last 7 exons of the factor IX gene. Her other factor IX gene inherited from her healthy father is normal as her son is also healthy. This suggests the patient's haemophilia to be due to gross bias in the proportion of factor IX-producing cells with an inactive paternal X chromosome. Methylation studies on the 5' region of the PGK gene show that virtually all the patient's lymphocytes carry a hypermethylated and presumably an inactive paternal X chromosome. The reason for this bias in the activity of her two X chromosomes is not clear, as no chromosomal alterations were found.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Hematologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Hematology (hsv//eng)
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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