We are excited to bring together recent research on the molecular
biology of Axenfeld-Rieger syndrome (ARS) disorders. In the
following chapters we will review and provide direct evidence for
the molecular basis of this group of heterogeneous disorders, which
include Rieger syndrome and Rieger anomaly. While ARS patients were
initially diagnosed in the early 1930s the genetic basis for ARS
was unknown until the recent identification of chromo- somal loci
associated with this genetic disorder. In the mid-1990s Drs.
Jeffrey C. Murray and Elena V. Semina identified PITX2 through
positional cloning tech- niques as a gene associated with ARS.
These researchers were able to iden- tify point mutations in PITX2
that were linked with ARS patients. ARS patients presented
clinically with several developmental anomalies that fur- ther
provided clues about the function of the PITX2 homeobox tran-
scription factor. The phenotypic variability of ARS patients
indicates that PITX2 can participate with many other faaors to
control normal development processes. The hallmarks of ARS
developmental anomalies are eye, tooth and umbilical defects.
However, abnormal pituitary, heart, and craniofacial development
are also detected. Thus, ARS patients provided the first link of
PITX2 involvement in the development of these organs and
structures. Some of these anomalies are recapitulated in epigenetic
and genetic mouse, chick, zebrafish and frog studies which will be
reviewed in the following chapters.
General
Imprint: |
Springer-Verlag New York
|
Country of origin: |
United States |
Series: |
Medical Intelligence Unit |
Release date: |
July 2005 |
First published: |
2005 |
Editors: |
Brad A Amendt
|
Dimensions: |
234 x 156 x 7mm (L x W x T) |
Format: |
Hardcover
|
Pages: |
106 |
Edition: |
2005 ed. |
ISBN-13: |
978-0-387-26222-2 |
Categories: |
Books >
Medicine >
Clinical & internal medicine >
Ophthalmology
|
LSN: |
0-387-26222-9 |
Barcode: |
9780387262222 |
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