Blood harmane is correlated with cerebellar metabolism in essential tremor: a pilot study.

Abstract:

BACKGROUND:On proton magnetic resonance spectroscopic imaging ((1)H MRSI), there is a decrease in cerebellar N-acetylaspartate/total creatine (NAA/tCr) in essential tremor (ET), signifying cerebellar neuronal dysfunction or degeneration. Harmane, which is present in the human diet, is a potent tremor-producing neurotoxin. Blood harmane concentrations seem to be elevated in ET. OBJECTIVES:To assess in patients with ET whether blood harmane concentration is correlated with cerebellar NAA/tCR, a neuroimaging measure of neuronal dysfunction or degeneration. METHODS:Twelve patients with ET underwent (1)H MRSI. The major neuroanatomic structure of interest was the cerebellar cortex. Secondary regions were the central cerebellar white matter, cerebellar vermis, thalamus, and basal ganglia. Blood concentrations of harmane and another neurotoxin, lead, were also assessed. RESULTS:Mean +/- SD cerebellar NAA/tCR was 1.52 +/- 0.41. In a linear regression model that adjusted for age and gender, log blood harmane concentration was a predictor of cerebellar NAA/tCR (beta = -0.41, p = 0.009); every 1 g(-10)/mL unit increase in log blood harmane concentration was associated with a 0.41 unit decrease in cerebellar NAA/tCR. The association between blood harmane concentration and brain NAA/tCR only occurred in the cerebellar cortex; it was not observed in secondary brain regions of interest. Furthermore, the association was specific to harmane and not another neurotoxin, lead. CONCLUSION:This study provides additional support for the emerging link between harmane, a neurotoxin, and ET. Further studies are warranted to address whether cerebellar harmane concentrations are associated with cerebellar pathology in postmortem studies of the ET brain.

journal_name

Neurology

journal_title

Neurology

authors

Louis ED,Zheng W,Mao X,Shungu DC

doi

10.1212/01.wnl.0000266663.27398.9f

subject

Has Abstract

pub_date

2007-08-07 00:00:00

pages

515-20

issue

6

eissn

0028-3878

issn

1526-632X

pii

69/6/515

journal_volume

69

pub_type

杂志文章
  • Biochemical and molecular analysis of cytochrome c oxidase deficiency in Leigh's syndrome.

    abstract::We studied three patients with Leigh's syndrome (LS) and cytochrome c oxidase (COX) deficiency. Biochemical studies in brain, muscle, heart, liver, kidney, and fibroblasts disclosed a generalized COX deficiency. Kinetic studies of COX activity in brain mitochondria showed a low Vmax and a normal Km for reduced cytochr...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/wnl.41.4.491

    authors: Lombes A,Nakase H,Tritschler HJ,Kadenbach B,Bonilla E,DeVivo DC,Schon EA,DiMauro S

    更新日期:1991-04-01 00:00:00

  • Diagnostic criteria for dystonia in DYT1 families.

    abstract::Family studies of primary torsion dystonia have used the diagnostic categories of definite, probable, and possible dystonia for gene mapping and identification, but the validity of this hierarchical classification is not known. The authors assessed 147 DYT1 GAG deletion carriers and 113 blood-related noncarriers from ...

    journal_title:Neurology

    pub_type: 临床试验,杂志文章

    doi:10.1212/01.wnl.0000035630.12515.e0

    authors: Bressman SB,Raymond D,Wendt K,Saunders-Pullman R,De Leon D,Fahn S,Ozelius L,Risch N

    更新日期:2002-12-10 00:00:00

  • Depression and symptoms affect quality of life in psychogenic nonepileptic seizures.

    abstract:BACKGROUND:In patients with active epilepsy, adverse medication effects and severity of depression are correlated with health-related quality of life, but seizure frequency is not. We sought to examine if the same pattern exists in patients with psychogenic nonepileptic seizures (PNES). METHODS:We administered seizure...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/WNL.0b013e3181b04c83

    authors: LaFrance WC Jr,Syc S

    更新日期:2009-08-04 00:00:00

  • Clinical and prognostic subforms of new daily-persistent headache.

    abstract:BACKGROUND:According to the International Classification of Headache Disorders (ICHD)-2, primary daily headaches unremitting from onset are classified as new daily-persistent headache (NDPH) only if migraine features are absent. When migraine features are present, classification is problematic. METHODS:We developed a ...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/WNL.0b013e3181dad5de

    authors: Robbins MS,Grosberg BM,Napchan U,Crystal SC,Lipton RB

    更新日期:2010-04-27 00:00:00

  • The Pediatric Stroke Recurrence and Recovery Questionnaire: validation in a prospective cohort.

    abstract:OBJECTIVE:We developed the Recurrence and Recovery Questionnaire (RRQ) by converting the Pediatric Stroke Outcome Measure (PSOM) to a questionnaire for telephone interview and sought to validate the RRQ in a large cohort. METHOD:We analyzed parents' RRQ responses and same-day PSOM assessments for 232 children who had ...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/WNL.0b013e318266fc9a

    authors: Lo WD,Ichord RN,Dowling MM,Rafay M,Templeton J,Halperin A,Smith SE,Licht DJ,Moharir M,Askalan R,Deveber G,International Pediatric Stroke Study (IPSS) Investigators.

    更新日期:2012-08-28 00:00:00

  • The video head impulse test: diagnostic accuracy in peripheral vestibulopathy.

    abstract:BACKGROUND:The head impulse test (HIT) is a useful bedside test to identify peripheral vestibular deficits. However, such a deficit of the vestibulo-ocular reflex (VOR) may not be diagnosed because corrective saccades cannot always be detected by simple observation. The scleral search coil technique is the gold standar...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/WNL.0b013e3181bacf85

    authors: MacDougall HG,Weber KP,McGarvie LA,Halmagyi GM,Curthoys IS

    更新日期:2009-10-06 00:00:00

  • Cognitive correlates of 1H MRSI-detected hippocampal abnormalities in temporal lobe epilepsy.

    abstract:OBJECTIVES:To examine associations between 1H magnetic resonance spectroscopic imaging (1H MRSI)-detected hippocampal creatine to N-acetylaspartate (Cr/NAA) ratios and neuropsychological measures sensitive to mesial temporal lobe function. BACKGROUND:The measurement of 1H MRSI-detected hippocampal metabolites has prov...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/wnl.53.9.2052

    authors: Martin RC,Sawrie S,Hugg J,Gilliam F,Faught E,Kuzniecky R

    更新日期:1999-12-10 00:00:00

  • Efficacy of treatment of MS with IFNbeta-1b or glatiramer acetate by monthly brain MRI in the BECOME study.

    abstract:BACKGROUND:There are no published MRI studies comparing interferon beta 1b (IFNbeta-1b) and glatiramer acetate (GA) for treatment of relapsing multiple sclerosis (MS). OBJECTIVE:To compare the efficacy of IFNbeta-1b and GA for suppression of MS disease activity as evidenced on frequent brain MRI. METHODS:A total of 7...

    journal_title:Neurology

    pub_type: 杂志文章,随机对照试验

    doi:10.1212/01.wnl.0000345970.73354.17

    authors: Cadavid D,Wolansky LJ,Skurnick J,Lincoln J,Cheriyan J,Szczepanowski K,Kamin SS,Pachner AR,Halper J,Cook SD

    更新日期:2009-06-09 00:00:00

  • Diffusion tensor imaging and cognitive function in older adults with no dementia.

    abstract:OBJECTIVE:To determine the patterns of diffusivity associated with cognitive domain functions in older adults without dementia. METHODS:We studied older adults without dementia (n = 220) who underwent neuropsychometric testing and a diffusion tensor imaging (DTI) examination at 3 T in a cross-sectional study. Memory, ...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/WNL.0b013e31822313dc

    authors: Kantarci K,Senjem ML,Avula R,Zhang B,Samikoglu AR,Weigand SD,Przybelski SA,Edmonson HA,Vemuri P,Knopman DS,Boeve BF,Ivnik RJ,Smith GE,Petersen RC,Jack CR Jr

    更新日期:2011-07-05 00:00:00

  • Traumatic brain injury preceding clinically diagnosed α-synucleinopathies: A case-control study.

    abstract:OBJECTIVE:To determine the association between traumatic brain injury (TBI) and any clinically diagnosed α-synucleinopathy including Parkinson disease (PD), dementia with Lewy bodies (DLB), PD dementia (PDD), and multiple system atrophy (MSA). METHODS:Using the medical records-linkage system of the Rochester Epidemiol...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/WNL.0000000000008995

    authors: Hasan S,Mielke MM,Turcano P,Ahlskog JE,Bower JH,Savica R

    更新日期:2020-02-25 00:00:00

  • The lower hippocampus global connectivity, the higher its local metabolism in Alzheimer disease.

    abstract:OBJECTIVES:Based on the hippocampus disconnection hypothesis in Alzheimer disease (AD), which postulates that uncoupling from cortical inputs contributes to disinhibition-like changes in hippocampus activity, we suggested that in patients with AD, the more the intrinsic functional connectivity between hippocampus and p...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/WNL.0000000000001575

    authors: Tahmasian M,Pasquini L,Scherr M,Meng C,Förster S,Mulej Bratec S,Shi K,Yakushev I,Schwaiger M,Grimmer T,Diehl-Schmid J,Riedl V,Sorg C,Drzezga A

    更新日期:2015-05-12 00:00:00

  • Relationship between environmental factors and gray matter atrophy in refractory MTLE.

    abstract:OBJECTIVE:To investigate clinical, neuropsychological, and MRI abnormalities (gray matter atrophy [GMA] and white matter atrophy [WMA]) in surgical mesial temporal lobe epilepsy (MTLE) patients with and without familial antecedent for epilepsy. METHODS:A cohort study including 69 operated patients with unilateral MTLE...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/WNL.0b013e3181d76b72

    authors: Yasuda CL,Morita ME,Alessio A,Pereira AR,Balthazar ML,Saúde AV,Costa AL,Costa AL,Cardoso TA,Betting LE,Guerreiro CA,Damasceno BP,Lopes-Cendes I,Tedeschi H,de Oliveira E,Cendes F

    更新日期:2010-03-30 00:00:00

  • Nonmydriatic ocular fundus photography among headache patients in an emergency department.

    abstract:OBJECTIVES:Determine the frequency of and the predictive factors for abnormal ocular fundus findings among emergency department (ED) headache patients. METHODS:Cross-sectional study of prospectively enrolled adult patients presenting to our ED with a chief complaint of headache. Ocular fundus photographs were obtained...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/WNL.0b013e31827f0f20

    authors: Thulasi P,Fraser CL,Biousse V,Wright DW,Newman NJ,Bruce BB

    更新日期:2013-01-29 00:00:00

  • Effects of breastfeeding in children of women taking antiepileptic drugs.

    abstract:BACKGROUND:Breastfeeding is known to have beneficial effects, but there is concern that breastfeeding during antiepileptic drug (AED) therapy may be harmful to cognitive development. Animal and human studies have demonstrated that some AEDs can adversely affect the immature brain. However, no investigation has examined...

    journal_title:Neurology

    pub_type: 杂志文章,多中心研究

    doi:10.1212/WNL.0b013e3181ffe4a9

    authors: Meador KJ,Baker GA,Browning N,Clayton-Smith J,Combs-Cantrell DT,Cohen M,Kalayjian LA,Kanner A,Liporace JD,Pennell PB,Privitera M,Loring DW,NEAD Study Group.

    更新日期:2010-11-30 00:00:00

  • How did stroke become of interest to neurologists?: a slow 19th century saga.

    abstract::It was not until the first half of the 19th century that the vascular nature of strokes was readily recognized and accepted. Brain "softenings" were distinguished from hemorrhagic "apoplexy," but stroke etiology remained unstudied. The terms artherosclerosis, thrombosis, embolism, and lacune were introduced to indicat...

    journal_title:Neurology

    pub_type: 历史文章,杂志文章

    doi:10.1212/WNL.0b013e3181b59c1a

    authors: Paciaroni M,Bogousslavsky J

    更新日期:2009-09-01 00:00:00

  • Familial spastic paraplegia, peroneal neuropathy, and crural hypopigmentation: a new neurocutaneous syndrome.

    abstract::A neurocutaneous syndrome is described in which spastic paraplegia, peroneal neuropathy, and crural hypopigmentation are inherited in a dominant pattern. Spastic paraplegia becomes clinically apparent during adolescence or in childhood and progresses slowly throughout the adult years with a variability in severity of ...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/wnl.31.6.754

    authors: Stewart RM,Tunell G,Ehle A

    更新日期:1981-06-01 00:00:00

  • Relation of EEG alpha background to parietal lobe function in Alzheimer's disease as measured by positron emission tomography and psychometry.

    abstract::Fourteen patients with Alzheimer's disease were evaluated by psychometric testing, fluorodeoxyglucose positron emission tomography (PET), and EEG. They were divided into two groups according to the EEG findings. Group A (seven patients) had normal alpha backgrounds and group B (seven patients) had decreased alpha back...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/wnl.38.5.747

    authors: Sheridan PH,Sato S,Foster N,Bruno G,Cox C,Fedio P,Chase TN

    更新日期:1988-05-01 00:00:00

  • Computerized visual field defects in posterior cortical atrophy.

    abstract:BACKGROUND AND OBJECTIVE:Posterior cortical atrophy (PCA) is a progressive neurodegenerative syndrome that presents with cortical visual dysfunction and relatively preserved memory. Although higher cortical visual syndromes are well known in PCA, visual field defects detected by computerized visual field (CVF) perimetr...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/WNL.0b013e31823e9f2a

    authors: Pelak VS,Smyth SF,Boyer PJ,Filley CM

    更新日期:2011-12-13 00:00:00

  • Subarachnoid and intracerebral hemorrhage: natural history, prognosis, and precursive factors in the Framingham Study.

    abstract::No uniformly accepted hypothesis explains the genesis and rupture of intracranial aneurysms. We followed 5,184 men and women prospectively for 26 years; 36 cases of aneurysmal subarachnoid hemorrhage (SAH) accounted for 62% of all intracranial hemorrhages. Blood pressure before SAH was higher in these patients than in...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/wnl.34.7.847

    authors: Sacco RL,Wolf PA,Bharucha NE,Meeks SL,Kannel WB,Charette LJ,McNamara PM,Palmer EP,D'Agostino R

    更新日期:1984-07-01 00:00:00

  • Therapy and management of frontal lobe dementia patients.

    abstract::Patients with frontal lobe dementia (FLD) include those who suffer from Pick's disease, corticobasal degeneration, FLD without specific histopathologic features, as well as the infrequent families with frontotemporal dementia and parkinsonism associated with chromosome 17. Currently there have been no systematic effor...

    journal_title:Neurology

    pub_type: 杂志文章,评审

    doi:10.1212/wnl.56.suppl_4.s41

    authors: Litvan I

    更新日期:2001-06-01 00:00:00

  • Reduced apolipoprotein epsilon 4 allele frequency in the oldest old Alzheimer's patients and cognitively normal individuals.

    abstract::Recent genetic studies show that the apolipoprotein E epsilon 4 allele (ApoE-epsilon 4) is a risk factor for Alzheimer's disease (AD). If ApoE-epsilon 4 individuals develop AD as they get older, we would expect a decrease in ApoE-epsilon 4 allele frequency with increasing age. We found a marked decline in ApoE-epsilon...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/wnl.44.8.1513

    authors: Rebeck GW,Perls TT,West HL,Sodhi P,Lipsitz LA,Hyman BT

    更新日期:1994-08-01 00:00:00

  • Homonymous hemianopias: clinical-anatomic correlations in 904 cases.

    abstract:OBJECTIVE:To describe the clinical characteristics and clinical-anatomic correlations of homonymous hemianopia (HH). BACKGROUND:Homonymous hemianopia impairs visual function and frequently precludes driving. Most knowledge of HH is based on relatively few cases with clinical-anatomic correlations. METHODS:The authors...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/01.wnl.0000203913.12088.93

    authors: Zhang X,Kedar S,Lynn MJ,Newman NJ,Biousse V

    更新日期:2006-03-28 00:00:00

  • Clinical, biochemical, and neuropathologic findings following transplantation of adrenal medulla to the caudate nucleus for treatment of Parkinson's disease.

    abstract::We transplanted autologous adrenal medullary tissue into the caudate nucleus of 3 patients with advanced Parkinson's disease. The 1st patient, a 59-year-old man with parkinsonian symptoms for 15 years, had mild improvement in his motor functioning after the operation. However, his postoperative course was characterize...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/wnl.39.9.1227

    authors: Jankovic J,Grossman R,Goodman C,Pirozzolo F,Schneider L,Zhu Z,Scardino P,Garber AJ,Jhingran SG,Martin S

    更新日期:1989-09-01 00:00:00

  • Trigeminal neuralgia in multiple sclerosis relieved by a prostaglandin E analogue.

    abstract::Trigeminal neuralgia is an uncommon but troublesome symptom of multiple sclerosis that can be refractory to conventional treatments. Misoprostol, a long-acting prostaglandin E1 analogue, relieved pain in six of seven patients who had failed to respond to conventional pharmacologic therapy. ...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/wnl.45.6.1097

    authors: Reder AT,Arnason BG

    更新日期:1995-06-01 00:00:00

  • Ambulatory EEG recordings in epileptic and nonepileptic children.

    abstract::We examined the cassette-recorded 24-hour ambulatory EEG findings in children who had either clinically definite seizures or episodic behavioral disturbances not regarded as epileptic on clinical grounds. Among 40 epileptic patients, 22 had one or more attacks during the 24-hour recording session. In 15 of these patie...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/wnl.38.4.558

    authors: Aminoff MJ,Goodin DS,Berg BO,Compton MN

    更新日期:1988-04-01 00:00:00

  • Journal club: pretreatment EEG in childhood absence epilepsy.

    abstract::Childhood absence epilepsy (CAE) is defined by absence seizures in a normally developing child, with onset between 4 and 10 years of age.(1) Typical absence seizures consist of behavioral arrest with or without automatisms, usually last 30-60 seconds, and demonstrate a characteristic 3-Hz generalized spike-wave (GSW) ...

    journal_title:Neurology

    pub_type: 杂志文章,随机对照试验

    doi:10.1212/WNL.0000000000000380

    authors: Bernson-Leung ME,Mazumdar M

    更新日期:2014-05-06 00:00:00

  • Familial spinal neurofibromatosis: clinical and DNA linkage analysis.

    abstract::We studied two families with an unusual variant of neurofibromatosis (NF). The first family had spinal neurofibromas and café au lait spots (CLS), the second spinal neurofibromas without CLS. Other signs of NF1 or NF2, such as cutaneous tumors, Lisch nodules, or acoustic tumors, were absent. The inheritance pattern in...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/wnl.41.12.1923

    authors: Pulst SM,Riccardi VM,Fain P,Korenberg JR

    更新日期:1991-12-01 00:00:00

  • Daily energy expenditure in free-living non-institutionalized Alzheimer's patients: a doubly labeled water study.

    abstract::Weight loss is common in Alzheimer's disease (AD), but its pathogenesis is poorly understood. It is unclear whether an elevated daily energy expenditure contributes to the weight loss. We tested the hypothesis that daily energy expenditure is higher in AD patients compared to healthy elderly. Thirty AD (73 +/- 8 years...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/wnl.48.4.997

    authors: Poehlman ET,Toth MJ,Goran MI,Carpenter WH,Newhouse P,Rosen CJ

    更新日期:1997-04-01 00:00:00

  • Sex difference in prevalence of depression after stroke.

    abstract:OBJECTIVE:This study investigated the sex difference in prevalence of depression at 90 days after first-ever stroke. METHODS:Patients with first-ever stroke (n = 786) were identified from the population-based Brain Attack Surveillance in Corpus Christi project (2011-2016). Poststroke depressive symptoms were assessed ...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/WNL.0000000000009394

    authors: Dong L,Sánchez BN,Skolarus LE,Stulberg E,Morgenstern LB,Lisabeth LD

    更新日期:2020-05-12 00:00:00

  • A novel laminin alpha2 isoform in severe laminin alpha2 deficient congenital muscular dystrophy.

    abstract:OBJECTIVES:Laminin alpha2 deficiency presents at birth with muscle weakness, hypotonia, and usually asymptomatic white matter signal on MRI. Few patients with laminin alpha2 deficiency have been described with seizures and structural brain abnormalities. The reason for the variation in the severity of the clinical phen...

    journal_title:Neurology

    pub_type: 杂志文章

    doi:10.1212/wnl.55.8.1128

    authors: Pegoraro E,Fanin M,Trevisan CP,Angelini C,Hoffman EP

    更新日期:2000-10-24 00:00:00