2012, Number 2
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Rev Cubana Hematol Inmunol Hemoter 2012; 28 (2)
Hemophilia II. Molecular and population genetics
Castillo-González D
Language: Spanish
References: 28
Page: 111-119
PDF size: 70.64 Kb.
ABSTRACT
The sporadic hemophilia prevalence was estimated more than 40 years ago and it was
shown that approximately a third of the cases are novo. Most of the mutations that occur
in hemophilia are produced during the male spermatogenesis; in other cases, they occur
in early stages of the embrión development or in the mother a germinal mutation. The
X-cromosoma- inactivation process is at random. Extended studies have shown that male
meiosis are more frequent than female ones, with a global proportion of 3,5/1, specially
introns inversions 22 and 1. There were revised molecular and biochemical aspects of
factors VIII and IX. We ruled out the importance of B domain in factor VIII, which contributes to multiple essential functions, as the quality control of synthesis, secretion,
union with platelet phospholipids, inactivation and complete clearance of the molecule.
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