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Provenzano G, Mannarino E, Annesi F, De Marco EV, Rocca FE, Greco V, Scornaienchi V, Tarantino P, Civitelli D, Quattrone A, Tortorella G, Annesi G. Novel human pathological mutations. Gene symbol: SCN1A. Disease: severe myoclonic epilepsy of infancy. Hum Genet 2009; 126:337. [PMID: 19694011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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327
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Quattrone A, Mazzei R. Cysteine-sparing notch3 mutations: cadasil or cadasil variants? Neurology 2009; 72:2135-6; author reply 2136. [PMID: 19528524 DOI: 10.1212/01.wnl.0000349699.12456.06] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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328
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Luisa Conforti F, Sprovieri T, Mazzei R, Patitucci A, Ungaro C, Zoccolella S, Magariello A, Bella VL, Tessitore A, Tedeschi G, Simone IL, Majorana G, Valentino P, Citrigno L, Gabriele A, Bono F, Monsurrò MR, Muglia M, Quattrone A. Further evidence that D90A-SOD1 mutation is recessively inherited in ALS patients in Italy. ACTA ACUST UNITED AC 2009; 10:58-60. [DOI: 10.1080/17482960802163853] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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329
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Bono F, Cristiano D, Mastrandrea C, Latorre V, D'Asero S, Salvino D, Fera F, Lavano A, Quattrone A. The upper limit of normal CSF opening pressure is related to bilateral transverse sinus stenosis in headache sufferers. Cephalalgia 2009; 30:145-51. [DOI: 10.1111/j.1468-2982.2009.01896.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
There are limited data on the relationship between normal cerebrospinal fluid (CSF) opening pressure and bilateral transverse sinus stenosis (BTSS); there are also several conflicting reports about the upper limit of normal CSF opening pressure. To evaluate the influence of BTSS on the upper limit of normal CSF opening pressure, we prospectively recorded lumbar CSF opening pressures in 217 adult patients with neurological symptoms who underwent cerebral magnetic resonance venography (MRV). The CSF opening pressures ranged between 65 and 286 mmH2O (mean = 149.3, s.d. = 47.5). The upper limit of opening pressure in patients with both normal appearance of transverse sinuses and unilateral transverse sinus stenosis on MRV ( n = 167) was 195 mmH2O with a range of 65–195 mmH2O. All patients with BTSS were headache sufferers, and the upper limit of opening pressure in patients with BTSS ( n = 50) was 286 mmH2O with a range of 91–286 mmH2O. All patients with opening pressures > 200 mmH2O displayed BTSS, whereas only 13% of patients with a pressure < 200 mmH2O displayed BTSS. Our findings demonstrate that the upper limit of normal CSF opening pressure is related to BTSS, and they also highlight that headache sufferers with opening pressures > 200 mmH2O should be tested for BTSS by MRV.
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Chiara Cupidi, Manna I, Navarra V, Vena L, Realmuto S, Cerami C, Quattrone A, Gambardella A, Piccoli F, Piccoli T. P3‐214: Identification of three novel progranulin mutations in a series of patients affected by sporadic and familial frontotemporal lobar degeneration. Alzheimers Dement 2009. [DOI: 10.1016/j.jalz.2009.04.987] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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331
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Nocentini U, Tedeschi G, Migliaccio R, Dinacci D, Lavorgna L, Bonavita S, Bresciamorra V, Comanducci G, Coniglio G, Livrea P, Mannu R, Orefice G, Paciello M, Patti F, Quattrone A, Salemi G, Savettieri G, Simone I, Valentino P, Zappia M, Bonavita V, Musicco M, Caltagirone C. An exploration of anger phenomenology in multiple sclerosis. Eur J Neurol 2009; 16:1312-7. [DOI: 10.1111/j.1468-1331.2009.02727.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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332
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Valentino P, Cerasa A, Chiriaco C, Nisticò R, Pirritano D, Gioia MC, Lanza P, Canino M, Del Giudice F, Gallo O, Condino F, Torchia G, Quattrone A. Cognitive deficits in multiple sclerosis patients with cerebellar symptoms. Mult Scler 2009; 15:854-9. [DOI: 10.1177/1352458509104589] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Cerebellar dysfunction is common in patients with multiple sclerosis (MS). However, neuropsychological studies of this clinical feature are lacking. Objective We investigate the neuropsychological features in relapsing-remitting MS (RR-MS) patients with and without cerebellar dysfunction. Methods Twenty-one RR-MS patients with cerebellar dysfunction (RR-MSc), characterized by prevalent ataxic gait and nystagmus, and 21 RR-MS patients without any cerebellar manifestation (RR-MSnc) pair-matched for demographical and clinical variables were studied. All patients from each group underwent an extensive battery of neuropsychological tests. Magnetic resonance imaging analysis included hyperintense fast fluid-attenuated inversion-recovery lesion load in the whole brain as well as in the four lobes separately. Results Any significant differences were detected in total and regional lesion load measurements between the two groups. RR-MSc group performed equally as well as the RR-MSnc group on many of the cognitive exploration measures. Nevertheless, the RR-MSc group performed more poorly than the RR-MSnc group on attention tests (Symbol Digit Modalities Test) and verbal fluency tests (Controlled Oral Word Association Test); neither of the test results proved to be affected by regional lesion loads. Conclusion These results highlight the importance of considering cognitive deficits associated with the presence of cerebellar symptoms in RR-MS.
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333
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Cerasa A, Gioia MC, Tarantino P, Labate A, Arabia G, Annesi G, Lanza P, Di Palma G, Blasi V, Quattrone A. The DRD2 TaqIA polymorphism associated with changed midbrain volumes in healthy individuals. GENES BRAIN AND BEHAVIOR 2009; 8:459-63. [DOI: 10.1111/j.1601-183x.2009.00492.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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334
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Ungaro C, Mazzei R, Conforti FL, Sprovieri T, Servillo P, Liguori M, Citrigno L, Gabriele AL, Magariello A, Patitucci A, Muglia M, Quattrone A. CADASIL: extended polymorphisms and mutational analysis of the NOTCH3 gene. J Neurosci Res 2009; 87:1162-7. [PMID: 19006080 DOI: 10.1002/jnr.21935] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
CADASIL is a cerebrovascular disease caused by mutations in the NOTCH3 gene. Most mutations result in a gain or loss of cysteine residue in one of the 34 epidermal growth factor-like repeats in the extracellular domain of the Notch3 protein, thus sparing the number of cysteine residues. To date, more than 130 different mutations in the NOTCH3 gene have been reported in CADASIL patients, of which 95% are missense point mutations. Many polymorphisms have also been identified in the NOTCH3 coding sequence, some of them leading to amino acid substitutions. The aim of the present study was to analyze the NOTCH3 gene in a large group of patients affected by leukoencephalopathy and to investigate the presence of genetic variants. The molecular analysis revealed several nucleotide alterations. In particular, we identified 20 different mutations, 22 polymorphisms, and 8 genetic variants of unknown pathological significance never reported previously. We hope that this NOTCH3 gene mutational analysis, performed in such a significant number of unrelated and related patients affected by leukoencephalopathy, will help in molecular screening for the NOTCH3 gene, thus contributing to enlargement of the NOTCH3 gene variation database.
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335
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Tarantino P, Civitelli D, Annesi F, De Marco EV, Rocca FE, Pugliese P, Nicoletti G, Carrideo S, Provenzano G, Annesi G, Quattrone A. Compound heterozygosity in DJ-1 gene non-coding portion related to parkinsonism. Parkinsonism Relat Disord 2009; 15:324-6. [DOI: 10.1016/j.parkreldis.2008.07.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2008] [Revised: 06/27/2008] [Accepted: 07/05/2008] [Indexed: 12/13/2022]
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336
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Martino D, Muglia M, Abbruzzese G, Berardelli A, Girlanda P, Liguori M, Livrea P, Quattrone A, Roselli F, Sprovieri T, Valente EM, Defazio G. Brain-derived neurotrophic factor and risk for primary adult-onset cranial-cervical dystonia. Eur J Neurol 2009; 16:949-52. [PMID: 19473353 DOI: 10.1111/j.1468-1331.2009.02633.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND PURPOSE Adult-onset dystonia may be related, amongst other factors, to abnormal neuronal plasticity in cortical and subcortical structures. Brain-derived neurotrophic factor is a major modulator of synaptic efficiency and neuronal plasticity. Recent works documented that a single nucleotide polymorphism (SNP) of the BDNF gene, the Val66Met SNP, modulates short-term plastic changes within motor cortical circuits. In this study we aimed at exploring the effect of this SNP upon the risk of developing common forms of primary adult-onset dystonia. METHODS We explored the influence of the Val66Met SNP of the BDNF gene on the risk of cranial and cervical dystonia in a cohort of 156 Italian patients and 170 age- and gender-matched healthy control subjects drawn from the same population. RESULTS The presence of the rare Met allele was not significantly associated with the diagnosis of dystonia (age- and gender-adjusted odds ratios of 1.22, P = 0.38). The study had a >90% power to detect a 50% change in the risk of developing cranial-cervical dystonia associated with the presence of the Met allele. Moreover, there was no relationship between Val66Met SNP and age at dystonia onset or type of dystonia. CONCLUSION Our data do not support the common variant Val66Met of the BDNF gene as an etiologic factor shared by the various forms of primary adult-onset dystonia.
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Nicoletti G, Tonon C, Lodi R, Condino F, Manners D, Malucelli E, Morelli M, Novellino F, Paglionico S, Lanza P, Messina D, Barone P, Morgante L, Zappia M, Barbiroli B, Quattrone A. Apparent diffusion coefficient of the superior cerebellar peduncle differentiates progressive supranuclear palsy from Parkinson's disease. Mov Disord 2009; 23:2370-6. [PMID: 18816803 DOI: 10.1002/mds.22279] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
The early diagnosis of progressive supranuclear palsy (PSP) may be challenging, because of clinical overlapping features with Parkinson's disease (PD) and other parkinsonian syndromes such as the Parkinsonian variant of multiple system atrophy (MSA-P). Conventional MRI can help in differentiating parkinsonian disorders but its diagnostic accuracy is still unsatisfactory. On the basis of the pathological demonstration of superior cerebellar peduncle (SCP) atrophy in patients with PSP, we assessed the SCP apparent diffusion coefficient (ADC) values in patients with PSP, PD, and MSA-P in order to evaluate its differential diagnostic value in vivo. Twenty-eight patients with PSP (14 with possible-PSP and 14 with probable-PSP), 15 PD, 15 MSA-P, and 16 healthy subjects were studied by using diffusion weighted imaging (DWI). ADC was calculated in regions of interest defined in the left and right SCP by two clinically blinded operators. Intrarater (r = 0.98, P < 0.001) and interrater reliability (r = 0.97; P < 0.001) for SCP measurements were high. Patients with PSP had higher SCP rADC values (median 0.98 x 10(-3)mm(2)/s) than patients with PD (median 0.79 x 10(-3) mm(2)/s, P < 0.001), MSA-P (median 0.79 x 10(-3) mm(2)/s, P < 0.001), and healthy controls (median 0.80 x 10(-3) mm(2)/s, P < 0.001). DWI discriminated patients with PSP from PD and healthy subjects on the basis of SCP rADC individual values (100% sensitivity and specificity) and from patients with MSA-P (96.4% sensitivity and 93.3% specificity). The higher values of rADC in SCP of patients with PSP correspond with the in vivo microstructural feature of atrophy detected postmortem and provide an additional support for early discrimination between PSP and other neurodegenerative parkinsonisms.
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338
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Qualtieri A, Urso E, Le Pera M, Bossio S, Bernaudo F, Ferraro T, Crescibene L, Aguglia U, Quattrone A. Thymosin β4 is differentially expressed in the cerebrospinal fluid of Creutzfeldt-Jakob disease patients: a MALDI-TOF MS protein profiling study. Proteomics Clin Appl 2009. [DOI: 10.1002/prca.200780116] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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339
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Andreoli V, Trecroci F, La Russa A, Valentino P, Condino F, Latorre V, Nisticò R, Pirritano D, Del Giudice F, Canino M, Cittadella R, Quattrone A. CASP-9: A susceptibility locus for multiple sclerosis in Italy. J Neuroimmunol 2009; 210:100-3. [PMID: 19359048 DOI: 10.1016/j.jneuroim.2009.03.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2008] [Revised: 02/24/2009] [Accepted: 03/05/2009] [Indexed: 11/17/2022]
Abstract
Caspase-9 is a primary effector CASP that executes programmed cell death, which plays an important role in the development of multiple sclerosis (MS). Polymorphisms in the CASP-9 gene may influence its activity, thereby modulating the susceptibility to MS. To test this hypothesis, we evaluated a SNP in the CASP-9 gene in a set of Italian patients from Southern Italy and healthy control subjects. Our results suggest that the presence of the G/G genotype represents a higher risk factor in our MS population and a differential production of CASP-9 might be a contributory factor in determining the severity of MS.
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340
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Cerasa A, Messina D, Nicoletti G, Novellino F, Lanza P, Condino F, Arabia G, Salsone M, Quattrone A. Cerebellar atrophy in essential tremor using an automated segmentation method. AJNR Am J Neuroradiol 2009; 30:1240-3. [PMID: 19342539 DOI: 10.3174/ajnr.a1544] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Essential tremor (ET) is a slowly progressive disorder characterized by postural and kinetic tremors most commonly affecting the forearms and hands. Several lines of evidence from physiologic and neuroimaging studies point toward a major role of the cerebellum in this disease. Recently, voxel-based morphometry (VBM) has been proposed to quantify cerebellar atrophy in ET. However, VBM was not originally designed to study subcortical structures, and the complicated anatomy of the cerebellum may hamper the automatic processing of VBM. The aim of this study was to determine the efficacy and utility of using automated subcortical segmentation to identify atrophy of the cerebellum and other subcortical structures in patients with ET. MATERIALS AND METHODS We used a recently developed automated volumetric method (FreeSurfer) to quantify subcortical atrophy in ET by comparing results obtained with this method with those provided by previous evidence. The study included T1-weighted MR images of 46 patients with ET grouped into those having arm ET (n = 27, a-ET) or head ET (n = 19, h-ET) and 28 healthy controls. RESULTS Results revealed the expected reduction of cerebellar volume in patients with h-ET with respect to healthy controls after controlling for intracranial volume. No significant difference was detected in any other subcortical area. CONCLUSIONS Volumetric data obtained with automated segmentation of subcortical and cerebellar structures approximate data from a previous study based on VBM. The current findings extend the literature by providing initial validation for using fully automated segmentation to derive cerebellar volumetric information from patients with ET.
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341
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Piro A, Tagarelli A, Tagarelli G, Lagonia P, Quattrone A. Archibald Edward Garrod: the physician father of biochemistry. Metabolism 2009; 58:427-37. [PMID: 19317031 DOI: 10.1016/j.metabol.2008.12.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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342
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Sprovieri T, Conforti F, Fiumara A, Mazzei R, Ungaro C, Citrigno L, Muglia M, Arena A, Quattrone A. A novel mutation in the X-linked cyclin-dependent kinase-like 5 (CDKL5) gene associated with a severe Rett phenotype. Am J Med Genet A 2009; 149A:722-5. [DOI: 10.1002/ajmg.a.32711] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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343
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Denora PS, Muglia M, Casali C, Truchetto J, Silvestri G, Messina D, Boukrhis A, Magariello A, Modoni A, Masciullo M, Malandrini A, Morelli M, de Leva MF, Villanova M, Giugni E, Citrigno L, Rizza T, Federico A, Pierallini A, Quattrone A, Filla A, Brice A, Stevanin G, Santorelli FM. Spastic paraplegia with thinning of the corpus callosum and white matter abnormalities: Further mutations and relative frequency in ZFYVE26/SPG15 in the Italian population. J Neurol Sci 2009; 277:22-5. [DOI: 10.1016/j.jns.2008.09.039] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2008] [Revised: 09/23/2008] [Accepted: 09/25/2008] [Indexed: 11/26/2022]
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344
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Muglia M, Vazza G, Patitucci A, Milani M, Pareyson D, Taroni F, Quattrone A, Mostacciuolo ML. A novel founder mutation in the MFN2 gene associated with variable Charcot-Marie-Tooth type 2 phenotype in two families from Southern Italy. CASE REPORTS 2009; 2009:bcr08.2008.0652. [DOI: 10.1136/bcr.08.2008.0652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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345
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Bono F, Quattrone A. Idiopathic intracranial hypertension without papilloedema in headache sufferers. Cephalalgia 2009; 29:593; author reply 594. [PMID: 19170702 DOI: 10.1111/j.1468-2982.2008.01765_1.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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346
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Valentino P, Labate A, Nisticò R, Pirritano D, Cerasa A, Liguori M, Bastone L, Crescibene L, Quattrone A. Anti-GM1 antibodies are not associated with cerebral atrophy in patients with multiple sclerosis. Mult Scler 2009; 15:114-5. [DOI: 10.1177/1352458508096685] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Objectives The aim of this study was to correlate the brain atrophy with serum levels of anti-GM1 antibodies in patients with relapsing–remitting multiple sclerosis (RRMS). Methods Plasma sample from 52 patients with RRMS and 65 healthy controls were examined for anti-GM1 antibodies. Patients with RRMS underwent to MRI study with automated method called SIENAX that calculated an estimate of gray matter (GMV) and white matter (WMV) volumes. Results The percentage of RRMS patients with increased anti-GM1 was 37.8%. Elevated levels of anti-GM1 antibodies did not correlate with brain atrophy. Conclusions Anti-GM1 antibodies do not represent a marker of axonal damage in patients with RRMS.
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347
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Poliani PL, Sperli D, Valentini S, Armentano A, Bercich L, Bonetti MF, Corriero G, Brisigotti M, Quattrone A, Lanza PL. Spinal glioneuronal tumor with neuropil-like islands and meningeal dissemination: histopathological and radiological study of a pediatric case. Neuropathology 2008; 29:574-8. [PMID: 19077041 DOI: 10.1111/j.1440-1789.2008.00988.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Cerebral and spinal location of glioneuronal tumors have been recently described as a novel type of primary CNS neoplasia. A distinctive rare form of glioneuronal tumors with neuropil-like islands (GTNI) have been reported to occur in the adult cerebrum, whereas spinal GTNI localization is extremely rare. In the present report we describe a case of a 15-month-old child with a spinal GTNI of the cervical region and meningeal dissemination. Histologically the tumor was composed of round, small neurocytic-like cells arranged around eosinophilic neuropil cores and embedded in a diffuse fibrillar glial component forming prominent "rosetted" neuropil islands displaying strong immunoreactivity for neuronal markers. Cerebral GTNI shows abundant glial components not rarely exhibiting anaplastic features that justify their inclusion within the group of diffuse astrocytomas. In contrast, including our case, spinal GTNI do not show histological evidence of anaplastic features and exhibits a significant neuronal component that may imply considering these lesions in a separate group. Nevertheless, due to their exceptional rarity, the natural history of these lesions is not yet fully understood, but spinal GTNI seems to have an unfavorable clinical course despite their benign histopathological features, which must be taken into account for appropriate treatment and follow-up of the patient.
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348
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Liguori M, Mazzei R, Ungaro C, Simone IL, Gambardella A, Plasmati I, Fera F, Aguglia U, Lanza P, Bono F, Chiumarulo L, Conforti FL, Consoli D, Quattrone A. CONVENTIONAL MRI AND NOTCH3 GENE SCREENING IN SPORADIC CADASIL. Neurology 2008; 72:469-71. [DOI: 10.1212/01.wnl.0000336342.04778.2b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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349
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Liguori M, Fera F, Patitucci A, Manna I, Condino F, Valentino P, Telarico P, Cerasa A, Gioia MC, di Palma G, Quattrone A. A longitudinal observation of brain-derived neurotrophic factor mRNA levels in patients with relapsing-remitting multiple sclerosis. Brain Res 2008; 1256:123-8. [PMID: 19071096 DOI: 10.1016/j.brainres.2008.11.047] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2008] [Revised: 11/06/2008] [Accepted: 11/06/2008] [Indexed: 11/26/2022]
Abstract
This report is part of a 2-year study assessing the functional effect of Brain-Derived Neurotrophic Factor (BDNF) and its Val66Met polymorphism on a selected population of Relapsing-Remitting Multiple Sclerosis (RRMS) patients from Southern Italy. For this purpose, we measured the peripheral BDNF expression in RRMS patients compared to healthy controls. The influence of concomitant IFNbeta therapy was also evaluated. Thirty-six inactive RRMS patients and 37 healthy controls were genotyped for BDNF Val66Met, and total RNA was extracted at time-points 0-24 months. The BDNF level was quantified by ABI Prism 7900 HT Sequence Detection System, and its relative expression was calculated by the comparative method of 2(-DeltaDeltaCt). At baseline and after 24 months, the BDNF levels of RRMS patients resulted significantly higher than controls (p=0.001), independently of the concomitant IFNbeta treatment; no correlations were found with the investigated clinical and MRI features of MS. Otherwise, carriers of the Met-allele showed significantly higher levels of BDNF in RRMS patients than healthy controls (p=0.005). These data was replicated after a 24-month interval. The present study confirms the increased levels of peripheral BDNF levels in RRMS, even during the inactive phase of the disease. Although with caution due to the small sample size, it also underscores the potential role of the Val66Met polymorphism on the peripheral BDNF expression in RRMS. Functional studies are needed to better clarify this issue.
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Mazzeo A, Muglia M, Rodolico C, Toscano A, Patitucci A, Quattrone A, Messina C, Vita G. Charcot-Marie-Tooth disease type 1B: marked phenotypic variation of the Ser78Leu mutation in five Italian families. Acta Neurol Scand 2008; 118:328-32. [PMID: 18422810 DOI: 10.1111/j.1600-0404.2008.01021.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVES To describe clinical, electrophysiological and genetic data of five unrelated Sicilian pedigrees harbouring a heterozygous Ser78Leu mutation in the myelin protein zero (MPZ) extracellular domain. MATERIALS AND METHODS Clinical, electrophysiological and genetic findings of 16 patients were reported. Polymorphic markers flanking the coding sequence of MPZ gene were also analysed. RESULTS A wide range of age at onset was observed in families 1 and 3, with a clinical heterogeneity, in terms of severity of the disease, within the same family (families 1 and 3), and among families. A markedly unsteady gait was a distinctive feature of many members of family 1. All patients in family 2 complained of severe cramps and painful paresthesia. Molecular genetic analysis showed that all affected subjects shared a common haplotype at three microsatellite loci D1S2858, D1S2624 and D1S484. CONCLUSIONS Our study provides further evidence that phenotypic features of MPZ mutations can vary within and among different families. High frequency of Ser78Leu mutation in Sicily as well as the results of haplotype analyses suggest that the mutation may have been inherited from a common ancestor.
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