@article {10797, title = {Idiopathic neutropenia of infancy: Data from the Italian Neutropenia Registry.}, journal = {Am J Hematol}, volume = {94}, year = {2019}, month = {2019 Feb}, pages = {216-222}, abstract = {

Autoimmune neutropenia of infancy (AIN) is characterized by low risk of severe infection, tendency to spontaneously resolve and typically onset at <=4-5 years of age; it is due to auto-antibodies whose detection is often difficult. In case of negativity of 4 antineutrophils autoantibody tests, after having excluded ethnic, postinfection, drug induced, or congenital neutropenia, according to the Italian guidelines the patients will be defined as affected by "idiopathic neutropenia" (IN). We describe the characteristics of 85 IN patients enrolled in the Italian neutropenia registry: they were compared with 336 children affected by AIN. The 2 groups were clinically very similar and the main differences were detection age (later in IN), length of disease (longer in IN) and, among recovered patients, age of spontaneous recovery: the median age at resolution was 2.13 years in AINs and 3.03 years in INs (P = .00002). At bivariate analysis among AIN patients earlier detection age (P = .00013), male sex (P = .000748), absence of leucopenia (P = .0045), and absence of monocytosis (P = .0419) were significantly associated with earlier recovery; in the IN group only detection age (P = .013) and absence of monocytosis (P = .0333) were significant. At multivariate analysis detection age and absence of monocytosis were independently significant (P = 6.7e-05 and 4.4e-03, respectively) in the AIN group, whereas in the IN group only detection age stayed significant (P = .013).

}, issn = {1096-8652}, doi = {10.1002/ajh.25353}, author = {Farruggia, Piero and Fioredda, Francesca and Puccio, Giuseppe and Onofrillo, Daniela and Russo, Giovanna and Barone, Angelica and Bonanomi, Sonia and Boscarol, Gianluca and Finocchi, Andrea and Ghilardi, Roberta and Giordano, Paola and Ladogana, Saverio and Lassandro, Giuseppe and Luti, Laura and Lanza, Tiziana and Mandaglio, Rosalba and Marra, Nicoletta and Martire, Baldassare and Mastrodicasa, Elena and Motta, Milena and Notarangelo, Lucia Dora and Pillon, Marta and Porretti, Laura and Serafinelli, Jessica and Trizzino, Angela and Tucci, Fabio and Veltroni, Marinella and Verzegnassi, Federico and Ramenghi, Ugo and Dufour, Carlo} } @article {10525, title = {Autoimmune neutropenia of childhood secondary to other autoimmune disorders: Data from the Italian neutropenia registry.}, journal = {Am J Hematol}, volume = {92}, year = {2017}, month = {2017 Sep}, pages = {E546-E549}, keywords = {Autoimmune Diseases, Child, Disease Susceptibility, Female, Humans, Immunoglobulins, Intravenous, Immunosuppressive Agents, Infant, Newborn, Infant, Premature, Infant, Premature, Diseases, Italy, Male, Neutropenia, Prevalence, Registries}, issn = {1096-8652}, doi = {10.1002/ajh.24803}, author = {Farruggia, Piero and Puccio, Giuseppe and Fioredda, Francesca and Lanza, Tiziana and Porretti, Laura and Ramenghi, Ugo and Barone, Angelica and Bonanomi, Sonia and Finocchi, Andrea and Ghilardi, Roberta and Ladogana, Saverio and Marra, Nicoletta and Martire, Baldassare and Notarangelo, Lucia Dora and Onofrillo, Daniela and Pillon, Marta and Russo, Giovanna and Lo Valvo, Laura and Serafinelli, Jessica and Tucci, Fabio and Zunica, Fiammetta and Verzegnassi, Federico and Dufour, Carlo} } @article {7760, title = {Are all cases of paediatric essential thrombocythaemia really myeloproliferative neoplasms? Analysis of a large cohort.}, journal = {Br J Haematol}, volume = {169}, year = {2015}, month = {2015 May}, pages = {584-9}, abstract = {

Sporadic essential thrombocythaemia (ET) is rare in paediatrics, and the diagnostic and clinical approach to paediatric cases cannot be simply copied from experience with adults. Here, we assessed 89 children with a clinical diagnosis of ET and found that 23 patients (25{\textperiodcentered}8\%) had a clonal disease. The JAK2 V617F mutation was identified in 14 children, 1 child had the MPL W515L mutation, and 6 had CALR mutations. The monoclonal X-chromosome inactivation pattern was seen in six patients (two with JAK2 V617F and two with CALR mutations). The other 66 patients (74{\textperiodcentered}2\%) had persistent thrombocytosis with no clonality. There were no clinical or haematological differences between the clonal and non-clonal patients. The relative proportion of ET-specific mutations in the clonal children was much the same as in adults. The higher prevalence of non-clonal cases suggests that some patients may not have myeloproliferative neoplasms, with significant implications for their treatment.

}, keywords = {Adolescent, Adult, Amino Acid Substitution, Child, Child, Preschool, Cohort Studies, Female, Hematologic Neoplasms, Humans, Infant, Janus Kinase 2, Male, Mutation, Missense, Neoplasm Proteins, Thrombocythemia, Essential}, issn = {1365-2141}, doi = {10.1111/bjh.13329}, author = {Randi, Maria L and Geranio, Giulia and Bertozzi, Irene and Micalizzi, Concetta and Ramenghi, Ugo and Tucci, Fabio and Notarangelo, Lucia D and Ladogana, Saverio and Menna, Giuseppe and Giordano, Paola and Consarino, Caterina and Farruggia, Piero and Zanazzo, Giulio A and Fiori, Giovanni M and Burnelli, Roberta and Russo, Giovanna and Jankovich, Momcilo and Peroni, Edoardo and Duner, Elena and Basso, Giuseppe and Fabris, Fabrizio and Putti, Maria C} } @article {3549, title = {Molecular analysis of Fanconi anemia: the experience of the Bone Marrow Failure Study Group of the Italian Association of Pediatric Onco-Hematology.}, journal = {Haematologica}, volume = {99}, year = {2014}, month = {2014 Jun}, pages = {1022-31}, abstract = {

Fanconi anemia is an inherited disease characterized by congenital malformations, pancytopenia, cancer predisposition, and sensitivity to cross-linking agents. The molecular diagnosis of Fanconi anemia is relatively complex for several aspects including genetic heterogeneity with mutations in at least 16 different genes. In this paper, we report the mutations identified in 100 unrelated probands enrolled into the National Network of the Italian Association of Pediatric Hematoly and Oncology. In approximately half of these cases, mutational screening was carried out after retroviral complementation analyses or protein analysis. In the other half, the analysis was performed on the most frequently mutated genes or using a next generation sequencing approach. We identified 108 distinct variants of the FANCA, FANCG, FANCC, FANCD2, and FANCB genes in 85, 9, 3, 2, and 1 families, respectively. Despite the relatively high number of private mutations, 45 of which are novel Fanconi anemia alleles, 26\% of the FANCA alleles are due to 5 distinct mutations. Most of the mutations are large genomic deletions and nonsense or frameshift mutations, although we identified a series of missense mutations, whose pathogenetic role was not always certain. The molecular diagnosis of Fanconi anemia is still a tiered procedure that requires identifying candidate genes to avoid useless sequencing. Introduction of next generation sequencing strategies will greatly improve the diagnostic process, allowing a rapid analysis of all the genes.

}, keywords = {Amino Acid Substitution, Cell Line, Cohort Studies, Computational Biology, Databases, Nucleic Acid, Fanconi Anemia, Fanconi Anemia Complementation Group Proteins, Founder Effect, Genotype, Humans, Italy, Mosaicism, Mutation, Polymorphism, Single Nucleotide}, issn = {1592-8721}, doi = {10.3324/haematol.2014.104224}, author = {De Rocco, Daniela and Bottega, Roberta and Cappelli, Enrico and Cavani, Simona and Criscuolo, Maria and Nicchia, Elena and Corsolini, Fabio and Greco, Chiara and Borriello, Adriana and Svahn, Johanna and Pillon, Marta and Mecucci, Cristina and Casazza, Gabriella and Verzegnassi, Federico and Cugno, Chiara and Locasciulli, Anna and Farruggia, Piero and Longoni, Daniela and Ramenghi, Ugo and Barberi, Walter and Tucci, Fabio and Perrotta, Silverio and Grammatico, Paola and Hanenberg, Helmut and Della Ragione, Fulvio and Dufour, Carlo and Savoia, Anna} }