Antonino Tuttolomondo1, Giovanni Duro2, Rosaria Pecoraro3, Irene Simonetta3, Salvatore Miceli3, Paolo Colomba2, Carmela Zizzo2, Tiziana Di Chiara3, Rosario Scaglione3, Vittoriano Della Corte3, Francesca Corpora3, Antonio Pinto3. 1. U.O.C di Medicina Interna e CardioAngiologia, Dipartimento Biomedico di Medicina Interna e Specialistica, Università degli Studi di Palermo, Pzza delle Cliniche, n.2, 90127 Palermo, Italy. Electronic address: bruno.tuttolomondo@unipa.it. 2. CNR-IBIM: Institute of Biomedicine and Molecular Immunology "A. Monroy" Palermo, Via Ugo la Malfa n.153, 90146 Palermo, Italy. 3. U.O.C di Medicina Interna e CardioAngiologia, Dipartimento Biomedico di Medicina Interna e Specialistica, Università degli Studi di Palermo, Pzza delle Cliniche, n.2, 90127 Palermo, Italy.
Abstract
BACKGROUND: Anderson/Fabry disease expresses a wide range of clinical variability in patients that it is possible to explain referring to a genetic variability with numerous mutations described in the literature (more than 600). METHODS: We report some clinical cases of some members of a Sicilian family to express phenotypical variability of this disease in subjects with the same genetic mutation RESULTS: The first case was a 59-year-old female. Brain MRI revealed right frontal periventricular white matter of likely vascular-degenerative origin. The proband's alpha galactosidase A activity was 3.7nmol/mL/h. Molecular genetics revealed a polymorphism: -10 C>T; IVS 2-76_80del5; IVS4-16 A>G; IVS6-22 C>T. The second case was a 30year-old male affected by acroparesthesias and hypoidrosis since he was an adolescent. Renal impairment was first detected at age 29; it began with high plasma levels of creatinine and microalbuminuria date. The third case was a 41year-old daughter that presented with acroparesthesias, hypoidrosis since she was very young. The patient's alpha galactosidase A activity was 4.1nmol/mL/h, in whole blood, which is compatible with heterozygote subject for Fabry's disease or healthy control. The fourth case was a male grandson of the proband, 9year-old child. He had a classic gastrointestinal involvement. He complained of recurrent abdominal pain, post prandial bloating and pain. This child's enzyme activity was 1.65nmol/mL/h. In cases 2, 3, and 4, molecular genetics revealed a polymorphism: -10 C>T; IVS 2-76_80del5; IVS4-16 A>G; IVS6-22 C<T DISCUSSION: A recent study reported that IVS4+68 A>G, IVS6-22C>T polymorphisms occurred in 8.9% and 3.7% of the subjects respectively, and the significance of this haplotype in FD pathology remains unknown but possibly suggestive of Anderson/Fabry disease.
BACKGROUND: Anderson/Fabry disease expresses a wide range of clinical variability in patients that it is possible to explain referring to a genetic variability with numerous mutations described in the literature (more than 600). METHODS: We report some clinical cases of some members of a Sicilian family to express phenotypical variability of this disease in subjects with the same genetic mutation RESULTS: The first case was a 59-year-old female. Brain MRI revealed right frontal periventricular white matter of likely vascular-degenerative origin. The proband's alpha galactosidase A activity was 3.7nmol/mL/h. Molecular genetics revealed a polymorphism: -10 C>T; IVS 2-76_80del5; IVS4-16 A>G; IVS6-22 C>T. The second case was a 30year-old male affected by acroparesthesias and hypoidrosis since he was an adolescent. Renal impairment was first detected at age 29; it began with high plasma levels of creatinine and microalbuminuria date. The third case was a 41year-old daughter that presented with acroparesthesias, hypoidrosis since she was very young. The patient's alpha galactosidase A activity was 4.1nmol/mL/h, in whole blood, which is compatible with heterozygote subject for Fabry's disease or healthy control. The fourth case was a male grandson of the proband, 9year-old child. He had a classic gastrointestinal involvement. He complained of recurrent abdominal pain, post prandial bloating and pain. This child's enzyme activity was 1.65nmol/mL/h. In cases 2, 3, and 4, molecular genetics revealed a polymorphism: -10 C>T; IVS 2-76_80del5; IVS4-16 A>G; IVS6-22 C<T DISCUSSION: A recent study reported that IVS4+68 A>G, IVS6-22C>T polymorphisms occurred in 8.9% and 3.7% of the subjects respectively, and the significance of this haplotype in FD pathology remains unknown but possibly suggestive of Anderson/Fabry disease.
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