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Conte ML, La Scola C, Mencarelli F, Filippini B, Fabbri E, Ragnoni V, Ravaioli E, Pasini A, Vergine G. Moyamoya disease presenting with tubular dysfunction in a child: pitfalls in diagnosing an atypical hyponatremic-hypertensive syndrome. BMC Pediatr 2023; 23:227. [PMID: 37150827 PMCID: PMC10165775 DOI: 10.1186/s12887-023-03926-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 02/20/2023] [Indexed: 05/09/2023] Open
Abstract
BACKGROUND Moyamoya disease, a cause of pediatric stroke, has been shown to affect furthermore extra-cranial districts, mostly the kidney arterial site, resulting in steno-occlusive changes. Unilateral renal artery stenosis accounts for 8%-10% out of cases of renovascular hypertension in childhood, however it rarely underlies a hyponatremic-hypertensive syndrome (HHS). CASE PRESENTATION We describe an 18-month-old boy with a recent history of polyuria and polydipsia, who presented an acute febrile gastroenteritis with neurological impairment, severe dehydration, hyponatremia, hypokalemia, kidney tubular dysfunction, and elevated aldosterone and renin even with a normal blood pressure. Fluid and electrolytes correction was performed, with complete recovery. An abdominal ultrasound displayed a smaller right kidney. A brain magnetic resonance and an electroencephalogram did not show any relevant abnormalities. Five months later, the child experienced a left-side hemiparesis after a traumatic concussion, and a severe hypertension. A brain tomography documented a cerebral ischemia. Brain and kidney angiographic studies displayed puff of smoke findings of internal right carotid artery branches and a steno-occlusive pattern of right renal artery, respectively. Hence, moyamoya disease with HHS secondary to unilateral renal artery stenosis was diagnosed. After an unsuccessful antiplatelet and antihypertensive pharmacological treatment, the boy underwent a renal angioplasty and a cerebral STA-MCA bypass (direct superficial temporal artery-to-middle cerebral artery bypass), resulting in a significant improvement of both neurological and kidney disease. CONCLUSIONS Although the association between unilateral renal artery stenosis and HHS has been previously shown, this is the first report of atypical HHS, with hypertension preceded by tubular dysfunction, recognized in the framework of moyamoya disease.
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Affiliation(s)
- Maria Luisa Conte
- Department of Pediatrics, Infermi Hospital, Viale Settembrini, 2, 47900, Rimini, Italy
| | - Claudio La Scola
- Pediatric Nephrology and Dialysis, Pediatric Unit, IRCCS AziendaOspedaliero-Universitaria Di Bologna, Bologna, Italy
| | - Francesca Mencarelli
- Pediatric Nephrology and Dialysis, Pediatric Unit, IRCCS AziendaOspedaliero-Universitaria Di Bologna, Bologna, Italy
| | - Beatrice Filippini
- Department of Pediatrics, Infermi Hospital, Viale Settembrini, 2, 47900, Rimini, Italy
| | - Elena Fabbri
- Department of Pediatrics, Infermi Hospital, Viale Settembrini, 2, 47900, Rimini, Italy
| | - Valentina Ragnoni
- Department of Pediatrics, Infermi Hospital, Viale Settembrini, 2, 47900, Rimini, Italy
| | - Elisa Ravaioli
- Department of Pediatrics, Infermi Hospital, Viale Settembrini, 2, 47900, Rimini, Italy
| | - Andrea Pasini
- Pediatric Nephrology and Dialysis, Pediatric Unit, IRCCS AziendaOspedaliero-Universitaria Di Bologna, Bologna, Italy
| | - Gianluca Vergine
- Department of Pediatrics, Infermi Hospital, Viale Settembrini, 2, 47900, Rimini, Italy.
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Esposito S, Maglietta G, Di Costanzo M, Ceccoli M, Vergine G, La Scola C, Malaventura C, Falcioni A, Iacono A, Crisafi A, Iughetti L, Conte ML, Pierantoni L, Gatti C, Caminiti C, Biasucci G. Retrospective 8-Year Study on the Antibiotic Resistance of Uropathogens in Children Hospitalised for Urinary Tract Infection in the Emilia-Romagna Region, Italy. Antibiotics (Basel) 2021; 10:antibiotics10101207. [PMID: 34680787 PMCID: PMC8532648 DOI: 10.3390/antibiotics10101207] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 09/30/2021] [Accepted: 10/01/2021] [Indexed: 11/23/2022] Open
Abstract
The development and spread of antibiotic resistance is an increasingly important global public health problem, even in paediatric urinary tract infection (UTI). In light of the variability in the data, it is necessary to conduct surveillance studies to determine the prevalence of antibiotic resistance in specific geographical areas to optimize therapeutic management. In this observational, retrospective, multicentre study, the medical records of 1801 paediatric patients who were hospitalised for UTI between 1 January 2012, and 30 June 2020, in Emilia-Romagna, Italy, were analysed. Escherichia coli was the most frequently detected pathogen (75.6%), followed by Klebsiella pneumoniae (6.9%) and Pseudomonas aeruginosa (2.5%). Overall, 840 cases (46.7%) were due to antimicrobial-resistant uropathogens: 83 (4.7%) extended spectrum beta-lactamase (ESBL)-producing, 119 (6.7%) multidrug resistant (MDR) and 4 (0.2%) extensively drug resistant (XDR) bacteria. Empirical antibiotic therapy failed in 172 cases (9.6%). Having ESBL or MDR/XDR uropathogens, a history of recurrent UTI, antibiotic therapy in the preceding 30 days, and empirical treatment with amoxicillin or amoxicillin/clavulanate were significantly associated with treatment failure, whereas first-line therapy with third-generation cephalosporins was associated with protection against negative outcomes. In conclusion, the increase in the resistance of uropathogens to commonly used antibiotics requires continuous monitoring, and recommendations for antibiotic choice need updating. In our epidemiological context, amoxicillin/clavulanate no longer seems to be the appropriate first-line therapy for children hospitalised for UTI, whereas third-generation cephalosporins continue to be useful. To further limit the emergence of resistance, every effort to reduce and rationalise antibiotic consumption must be implemented.
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Affiliation(s)
- Susanna Esposito
- Pediatric Clinic, University Hospital, Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
- Correspondence: ; Tel.: +39-0521-903524
| | - Giuseppe Maglietta
- Research and Innovation Unit, University Hospital, 43126 Parma, Italy; (G.M.); (C.C.)
| | - Margherita Di Costanzo
- Paediatrics and Neonatology Unit, Guglielmo da Saliceto Hospital, 29122 Piacenza, Italy; (M.D.C.); (G.B.)
| | - Martina Ceccoli
- Paediatrics Unit, Department of Medical and Surgical Sciences of Mothers, Children and Adults, University of Modena and Reggio Emilia, 41125 Modena, Italy; (M.C.); (L.I.)
| | - Gianluca Vergine
- Paediatrics Unit, Rimini Hospital, AUSL Romagna, 47921 Rimini, Italy; (G.V.); (M.L.C.)
| | - Claudio La Scola
- Paediatric Clinic, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy;
| | | | - Alice Falcioni
- Paediatric Unit, Forlì Hospital, AUSL Romagna, 47121 Forlì, Italy;
| | - Alessandra Iacono
- Paediatrics and Neonatology Unit, Ravenna Hospital, AUSL Romagna, 48121 Ravenna, Italy;
| | - Antonella Crisafi
- Paediatrics Unit, Santa Maria Nuova Hospital, AUSL-IRCCS of Reggio Emilia, 42123 Reggio Emilia, Italy;
| | - Lorenzo Iughetti
- Paediatrics Unit, Department of Medical and Surgical Sciences of Mothers, Children and Adults, University of Modena and Reggio Emilia, 41125 Modena, Italy; (M.C.); (L.I.)
| | - Maria Luisa Conte
- Paediatrics Unit, Rimini Hospital, AUSL Romagna, 47921 Rimini, Italy; (G.V.); (M.L.C.)
| | - Luca Pierantoni
- Paediatric Emergency Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy;
| | - Claudia Gatti
- Paediatric Surgery, University Hospital, 43126 Parma, Italy;
| | - Caterina Caminiti
- Research and Innovation Unit, University Hospital, 43126 Parma, Italy; (G.M.); (C.C.)
| | - Giacomo Biasucci
- Paediatrics and Neonatology Unit, Guglielmo da Saliceto Hospital, 29122 Piacenza, Italy; (M.D.C.); (G.B.)
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Bagnoli F, Badii S, Conte ML, Toti MS, De Felice C, Bellieni CV, Borlini G, Tomasini B, Zani S. [Influence of prolonged treatment with octreotide on GH, IGF I, insulin, ACTH, cortisol, T3, T4 and TSH secretion in a case of congenital chylothorax]. Minerva Pediatr 2010; 62:411-417. [PMID: 20940674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Congenital chylothorax is a rare condition characterized by the accumulation of lymph fluid in the pleural space that causes respiratory and circulatory dysfunctions, immune deficiencies, hypoalbuminemia, electrolyte imbalance and alterations of the coagulation. Mortality rates are elevated and can rise to 50%. Therapy consists in conservative treatment based on thoracic drainage combined with total parenteral nutrition or use of low-fat high-protein diet supplemented with medium chain triglycerides. In case of failure surgical intervention may be considered. During the last years some authors have experienced the use of octreotide with doubtful results. In no case the drug impact on insulin, GH and cortisol secretion in neonatal age has been investigated and only in one case the effect on thyroid hormones has been assessed. We report the case of a 36-week baby with congenital chylothorax treated with octreotide for 42 days. The drug was well tolerated but hormonal level measurements showed a deep depression of insulin secretion unaccompanied by alterations of glucose levels. Levels of GH and TSH showed only a transitory decrease. ACTH and cortisol remained normal. At 5 months, the measurements of hormonal levels did not show significant alterations. It is not possible to determine if such a drug played an essential role in the solution of the pleural effusion, but it is important to emphasize that a prolonged treatment with octreotide has not caused, in our case, persistent hormonal alterations.
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Affiliation(s)
- F Bagnoli
- Unità Operativa Complessa di Terapia Intensiva Neonatale, Dipartimento di Pediatria, Ostetricia e Medicina della Riproduzione, Azienda Ospedaliera Universitaria Senese, Siena, Italia.
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Bagnoli F, Toti MS, Conte ML, Badii S, Mori A, Tomasini B, Zani S. [Quantitative ultrasound for the assessment of bone in the preterm infant]. Minerva Pediatr 2010; 62:125-132. [PMID: 20440231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
AIM Preterm infants are at risk of osteopathy of prematurity (OP). The present study aims to assess quantitative ultrasound as a safe and non-invasive method in evaluating bone mineral status in the critically ill preterm infant. METHODS Sixty preterm infants (27 females) have been evaluated in the Neonatal Intensive Care Unit of the University Hospital of Siena. Gestational age was between 22 and 36 weeks and birth weight ranged between 610 and 3240 g. A single operator did all the measurements on the second metacarpus by the DBM Sonic BP (IGEA). Ultrasound parameters were bone transmission time (BTT, micros) and speed of sound (SOS, m/s). RESULTS BTT positively increased with birth gestational age (r=0.72, P<0.001, F-Ratio=62.4428), birth weight (r=0.7827, P<0.001, F-Ratio=91.7274) and birth length (r=0.7729, P<0.001, F-Ratio=86.0748). SOS was also related with gestational age (r=0.2937, P<0.023, F-Ratio=5.4768), birth weight (r=0.2634, P<0.042, F-Ratio=4.3250) and birth length (r=0.3252, P<0.011, F-Ratio=6.8596). Small infants for gestational age showed BTT values lower then infants with appropriate size for gestational age (P<0.03). There was no difference between male and female infants. CONCLUSION Quantitative ultrasound is a non-invasive method, which is easy to perform in a Neonatal Intensive Unit, safe, harmless and gentle. This method detects subtle differences in bone mineral status, according to gestational age, weight and length. Quantitative ultrasound is a useful screening tool for early detection of bone status in newborns and a valid method for the longitudinal assessment of bone in growing children.
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Affiliation(s)
- F Bagnoli
- Unità Operativa Complessa di Terapia Intensiva Neonatale, Dipartimento di Pediatria, Ostetricia e Medicina della RiproduzioneAzienda Ospedaliera Universitaria di Siena, Siena, Italia.
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Bagnoli F, Conte ML, Tomasini B, Bellieni CV, Borlini G, De Felice C, Perrone S, Zani S, Gatti MG. [Survival rates in a single neonatal intensive care unit (period 2002-2007). Neuro-developmental outcome and survival for infants born at 23-25 weeks of gestation]. Minerva Pediatr 2010; 62:29-41. [PMID: 20212396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
AIM The aim of this study was to evaluate survival rates in a single Neonatal Intensive Care Unit (NICU) (period 2002-2007), with a special focus on the survival data and outcome at one-year of corrected age for infants born at 23-25 weeks of gestation. METHODS All infants who had evidence of heart activity at birth were actively resuscitated, regardless of birth weight or gestational age. Survival rate was calculated as a function of the following variables: birth weight and gestational category; gender in infants of birth weight < or = 1000 g ; appropriate (AGA) or small (SGA) weight for gestational age; inborn or outborn. Twenty-eight newborns (23-25 weeks of gestation) completed follow-up at one-year of corrected age. RESULTS During the examined period, no infants died in the delivery room; 833 newborns were admitted to the NICU. Overall survival rates were as following: <500 g (37%), 501-750 g (59%), 751-1,000 g (82%), 1,001-1,250 g (96%), 1251-1,500 g (97%), 1,501-2,000 g (100%), 2,001-2,500 g (98%), >2,500 g (99%); 23-25 weeks of gestation (50%); 26-27 weeks (77%), 28-32 weeks (90%); males < or = 1,000 g (68%), females < or = 1,000 g (68%); AGA < or = 1,000 g (63%), SGA < or = 1,000 g (79%), AGA < or =28 weeks (63%), SGA < or = 28 weeks (67%); inborn (54%), outborn (25%). A fraction of 64% (infants of 23-25 weeks of gestation) did not show handicap at one-year of corrected age, while 25% presented severe, 7% moderate, and 4% mild handicaps. CONCLUSION High rate of survival without handicap at one-year of corrected age at extremely low gestational age and the chance of improvements in neonatal care for newborn < or = 24 weeks, indicate the appropriateness for our strategy of resuscitating all newborns with evidence of heart activity in the delivery room.
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Affiliation(s)
- F Bagnoli
- Unità Operativa Complessa, Terapia Intensiva Neonatale, Dipartimento di Pediatria, Ostetricia e Medicina della Riproduzione, Azienda Ospedaliera Universitaria Senese, Siena, Italia.
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Bagnoli F, Conte ML, Magaldi R, Rinaldi M, De Felice C, Perrone S, Vezzosi P, Paffetti P, Borgogni P, Toti MS, Badii S. [Insulin and glucagon plasma levels in very low birth weight preterm infants of appropriate weight for gestational age]. Minerva Pediatr 2009; 61:469-475. [PMID: 19794372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVES Prematurity is a known risk factor for hypoglycaemia, hyperglycemia, neonatal sepsis and other common neonatal complications, possibly associated with glucoregolatory hormone (insulin and glucagon) alterations. Insulin and glucagon levels change also in relation to gender, mode of delivery and postnatal clinical severity. Because of the lack of reference range in literature, the aim of this study is to assess plasma insulin and glucagon levels in preterm appropriate for gestational age (AGA) infants of birth weight <1500 g (very low birth weight, VLBW) as a function of gestation, birth weight, gender and mode delivery. METHODS The authors examined 48 preterm AGA infants (mean birth weight 1 163+/-286 g, mean gestational age 28.2+/-2.4 weeks). The infant population was subdivided in relation to gestational age, weight, gender, mode of delivery and assisted ventilation at 5-7(th) days. Plasma glucose, insulin and glucagon levels were assessed in all newborns at birth and at 5-7(th) days of life. Data were analyzed using t-test. RESULTS A negative correlation between insulin and gestational age was observed (P<0.05). At birth, no significant differences regarding plasma glucose, insulin and glucagon levels were observed as a function of the examined category variables. At the 5-7(th) days of life, insulin levels were significantly higher in newborns with gestational age =or<27 weeks (P<0.02), in the female gender (P<0.02) and in the infants born to emergency Cesarean delivery (P<0.05). CONCLUSIONS These findings indicate potentially useful reference range values for plasma insulin and glucagon in the VLBW population.
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Affiliation(s)
- F Bagnoli
- Operative Unito f Neonatal Intensive Therapy, Department of Pediatrics, Obstetrics and Reproductive Medicine, Senese University Hospital, Siena, Italy.
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Bertoli-Avella AM, Conte ML, Punzo F, de Graaf BM, Lama G, La Manna A, Polito C, Grassia C, Nobili B, Rambaldi PF, Oostra BA, Perrotta S. ROBO2 gene variants are associated with familial vesicoureteral reflux. J Am Soc Nephrol 2008; 19:825-31. [PMID: 18235093 DOI: 10.1681/asn.2007060692] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
The SLIT2 receptor ROBO2 plays a key role in the formation of the ureteric bud, and its inactivation in mice leads to supernumerary ureteric bud development, lack of ureter remodeling, and improper insertion of the ureters into the bladder. Recently, two heterozygous ROBO2 missense mutations were identified in two families with primary vesicoureteral reflux occurring in combination with congenital anomalies of the kidney and urinary tract (VUR/CAKUT). This study investigated a possible causal role of ROBO2 gene variants in 95 unrelated patients with primary VUR (n = 78) or VUR/CAKUT. Eighty-two percent of all patients had a family history of genitourinary anomalies. Twenty-four ROBO2 gene variants were identified by direct sequencing of all 26 exons and the exon-intron boundaries. Of these, four led to amino acid substitutions: Gly328Ser, Asn515Ile, Asp766Gly, and Arg797Gln. When the families were examined, the missense variants co-segregated with VUR (three families) or VUR/CAKUT (one family). These variants were not found in 190 control subjects, and the affected amino acids have been conserved through evolution. In conclusion, a relatively high frequency of ROBO2 variants (5.1%) was found in familial cases; however, functional studies and validation in other cohorts are warranted.
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Affiliation(s)
- Aida M Bertoli-Avella
- Department of Clinical Genetics, Erasmus MC Rotterdam, P.O. Box 2040, 3000 CA, Rotterdam, Netherlands.
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Perrotta S, Borriello A, Scaloni A, De Franceschi L, Brunati AM, Turrini F, Nigro V, del Giudice EM, Nobili B, Conte ML, Rossi F, Iolascon A, Donella-Deana A, Zappia V, Poggi V, Anong W, Low P, Mohandas N, Della Ragione F. The N-terminal 11 amino acids of human erythrocyte band 3 are critical for aldolase binding and protein phosphorylation: implications for band 3 function. Blood 2005; 106:4359-66. [PMID: 16118313 DOI: 10.1182/blood-2005-07-2806] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The 911 amino acid band 3 (SLC4A1) is the major intrinsic membrane protein of red cells and is the principal Cl-/HCO3- exchanger. The N-terminal cytoplasmic domain of band 3 anchors the spectrin-based membrane skeleton to the lipid bilayer through its interaction with ankyrin and also binds glycolytic enzymes and hemoglobin. We identified a son of a consanguineous marriage with severe anemia in association with marked deficiency of band 3 (12% +/- 4% of normal). Direct nucleotide sequencing of SLC4A1 gene demonstrated a single base substitution (T --> C) at position + 2 in the donor splice site of intron 2, resulting in the generation of a novel mutant protein. Biochemical characterization of the mutant protein showed that it lacked the first 11 N-terminal amino acids (band 3 Neapolis). The expression of the mutant protein resulted in the complete absence of membrane-bound aldolase, and the mutant band 3 could not be tyrosine phosphorylated. The ability of the malarial parasite P falciparum to invade these red cells was significantly decreased. The identification of a novel band 3 mutant and its structural and functional characterization enabled us to identify pivotal roles for the 11 N-terminal amino acids in several protein functions and, in turn, in red-cell physiology.
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Perrotta S, Conte ML, La Manna A, Indolfi P, Rossi F, Locatelli F, Nobili B. Membranous glomerulopathy in children given allogeneic hematopoietic stem cell transplantation. Haematologica 2005; 90 Suppl:ECR31. [PMID: 16266922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023] Open
Abstract
Graft-versus-host disease (GVHD) is a common complication of allogeneic hematopoietic stem cell transplantation (HSCT), but membranous glomerulopathy (MG) has rarely been described as a manifestation of chronic GVHD. We report two cases of MG in children who underwent allogeneic HSCT. The clinical findings were characterized by edema of the lower extremities and nephrotic proteinuria in one case and hypertension, hematuria and edema with non-nephrotic proteinuria in the other one. Renal biopsy was consistent with MG and appropriate immunosuppressive therapy was prescribed. Both patients achieved complete remission and are alive without renal disease 4 and 2 years after the diagnosis of MG. The normal levels of albumin and non-nephrotic proteinuria in one of the two cases raise the question of whether the real incidence of MG after HSCT is underestimated. Therefore, we strongly suggest regular urine analysis during the follow-up of children undergoing HSCT in order to diagnose MG early.
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Perrotta S, Amendola G, Locatelli F, Conte ML, Rossi F, d'Urzo G, Nobili B. Treatment with short-term, high-dose cyclosporin A in children with refractory chronic idiopathic thrombocytopenic purpura. Br J Haematol 2003; 121:143-7. [PMID: 12670345 DOI: 10.1046/j.1365-2141.2003.04254.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We report on 14 children (seven boys, seven girls) with chronic idiopathic thrombocytopenic purpura (ITP) refractory to multiple treatments, who were given a short-term therapy (range between 6 and 10 weeks) with high doses of cyclosporin A (CyA) (median, 10 mg/kg/d). Six patients experienced adverse events and one developed severe systemic mycosis during therapy. A complete response (CR) was observed in four patients and a partial response (PR) in three patients. Only the four CR patients, who were all girls, had a sustained response. These data suggest that CyA may be effective in some children with chronic symptomatic ITP.
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Affiliation(s)
- Silverio Perrotta
- Department of Paediatrics, Second University of Naples, Via S. Andrea delle Dame 4, 80138 Naples, Italy.
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Nobili B, Perrotta S, Matarese SMR, Conte ML, del Giudice EM. Evaluation of body iron status in Italian carriers of beta-thalassemia trait. Nutr Res 2001. [DOI: 10.1016/s0271-5317(00)00295-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Perrotta S, Iolascon A, Polito R, d'Urzo G, Conte ML, Miraglia del Giudice E. 4.2 Nippon mutation in a non-Japanese patient with hereditary spherocytosis. Haematologica 1999; 84:660-2. [PMID: 10406914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023] Open
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Miraglia del Giudice E, Lombardi C, Francese M, Nobili B, Conte ML, Amendola G, Cutillo S, Iolascon A, Perrotta S. Frequent de novo monoallelic expression of beta-spectrin gene (SPTB) in children with hereditary spherocytosis and isolated spectrin deficiency. Br J Haematol 1998; 101:251-4. [PMID: 9609518 DOI: 10.1046/j.1365-2141.1998.00688.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
This report represents an attempt to define the rate of beta-spectrin de novo mutations affecting mRNA accumulation in patients with hereditary spherocytosis (HS). 19 HS children with haematologically normal parents and varying degrees of spectrin deficiency were studied. 13 of the 19 cases who were heterozygous at the genomic level for polymorphisms in the beta-spectrin coding region were further studied. However, in an analysis of reverse-transcripted amplified cDNA from the regions of the polymorphisms, seven patients appeared to be homozygous, suggesting the occurrence of de novo mutational events affecting expression of one beta-spectrin allele. We conclude that in HS patients with isolated spectrin reduction and normal parents the apparently recessive pattern of inheritance may frequently be associated with de novo monoallelic expression of beta-spectrin.
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