Polimorfismi genomici: meccanismi e rischi dei riarrangiamenti cromosomici comuni relativi rischi
- 3 Anni 2001/2004
- 116.203€ Totale Fondi
Le anomalie cromosomiche costituiscono una causa importante di mortalita' e morbidita'. Esse sono presenti con una frequenza stimata intorno al 10-30% nelle uova fecondate e una frequenza reale del 1.1% nei neonati. Nell’ultimo decennio sono state chiarite le cause delle anomalie cromosomiche di numero, principale causa di aborto spontaneo. Solo negli ultimi 5 anni sono stati iniziati studi intesi a chiarire le cause delle anomalie cromosomiche di struttura (riarrangiamenti) sebbene esse siano le piu' frequenti fra i nati vivi (0.58%, di cui la meta' da genitori con cromosomi normali).Nostri recenti studi hanno dimostrato che alcuni riarrangiamenti cromosomici relativamente comuni, si originino da genitori normali portatori di anomalie cromosomiche submicroscopiche presenti anche in una parte della popolazione. Ci proponiamo di indagare se questa situazione possa spiegare anche altri riarrangiamenti ricorrenti. Questo studio potrebbe chiarire i meccanismi di base delle piu' comuni anomalie di struttura e portare a definire protocolli preconcezionali e prenatali nei soggetti a rischio.
Pubblicazioni Scientifiche
- 2005 HUMAN GENETICS
Loss-of-function mutation of the AF9/MLLT3 gene in a girl with neuromotor development delay, cerebellar ataxia, and epilepsy
- 2005 AMERICAN JOURNAL OF MEDICAL GENETICS PART A
8.5 Mb deletion at distal 5p in a male ascertained for azoospermia
- 2003 JOURNAL OF MEDICAL GENETICS
Distal trisomy 6p and 20q owing to the concurrent transposition of distal 6p and 20q to the 22q telomere: a genomic polymorphism?
- 2007 EUROPEAN JOURNAL OF MEDICAL GENETICS
Subtelomeric trisomy 21q: A new benign chromosomal variant
- 2004 JOURNAL OF MEDICAL GENETICS
Selective disruption of muscle and brain-specific BPAG1 isoforms in a girl with a 6;15 translocation, cognitive and motor delay, and tracheo-oesophageal atresia
- 2006 JOURNAL OF MEDICAL GENETICS
Identification of a recurrent breakpoint within the SHANK3 gene in the 22q13.3 deletion syndrome
- 2006 JOURNAL OF MEDICAL GENETICS
Inversion polymorphisms and non-contiguous terminal deletions: the cause and the (unpredicted) effect of our genome architecture
- 2005 HUMAN GENETICS
Direct duplication 12p11.21-p13.31 mediated by segmental duplications: a new recurrent rearrangement?
- 2006 HUMAN REPRODUCTION
Chromosomal rearrangements in Xq and premature ovarian failure: mapping of 25 new cases and review of the literature
- 2004 EUROPEAN JOURNAL OF HUMAN GENETICS
Inverted duplications: how many of them are mosaic?
- 2007 EUROPEAN JOURNAL OF MEDICAL GENETICS
Contiguous gene syndrome due to an interstitial deletion in Xp22.3 in a boy with ichthyosis, chondrodysplasia punctata, mental retardation and ADHD
- 2005 EUROPEAN JOURNAL OF HUMAN GENETICS
A 2.3Mb duplication of chromosome 8q24.3 associated with severe mental retardation and epilepsy detected by standard karyotype
- 2004 HUMAN REPRODUCTION
Mutation analysis of two candidate genes for premature ovarian failure, DACH2 and POF1B
- 2003 AMERICAN JOURNAL OF MEDICAL GENETICS PART A
Reciprocal translocation associated with multiple exostoses in seven members of a three generation family and discovered through an infertile male
- 2007 AMERICAN JOURNAL OF MEDICAL GENETICS PART A
A patient with duplication (7)(p22.1pter) characterized by array-CGH
- 2003 HUMAN MOLECULAR GENETICS
Genomic inversions of human chromosome 15q11-q13 in mothers of Angelman syndrome patients with class II (BP2/3) deletions
- 2005 HUMAN GENETICS
Reciprocal translocations: a trap for cytogenetists?
- 2002 AMERICAN JOURNAL OF HUMAN GENETICS
Heterozygous submicroscopic inversions involving olfactory receptor-gene clusters mediate the recurrent t(4;8)(p16;p23) translocation