Abstract:
:The stereotyped movement of hands, one of the core symptoms of the Rett syndrome (RS), was analyzed to study the pathophysiology. The development of hand function was delayed after mid-infancy and handedness was undetermined in most cases. Before the onset of the pathognomonic stereotypy, patients showed excessive or abnormal behaviors of hands and mouth, such as patting or licking hands, etc. The useful hand function was lost just before or after the onset of stereotypy. The characteristic "hand wringing" movement at midline became apparent from 8 months to 3 years of age. The synchronous hand movement without reaching the midline and leg movement at midline were also seen in some patients. Based on the analysis of these symptoms, it is suggested that the stereotyped movements of RS are manifestation of fragments of normal motor behaviors at immature levels appearing excessively and repetitively with the abnormal basic posture. The pathophysiological mechanism of these characteristics is thought to be due to the hypofunctional state of the monoaminergic system from early ontogeny, which is in accordance with our previous hypothesis that RS is a developmental disorder of the monoaminergic system. The roles of the cortical involvement and sensory system are also discussed.
journal_name
Brain Devjournal_title
Brain & developmentauthors
Nomura Y,Segawa Mdoi
10.1016/s0387-7604(12)80170-7subject
Has Abstractpub_date
1990-01-01 00:00:00pages
27-30issue
1eissn
0387-7604issn
1872-7131pii
S0387-7604(12)80170-7journal_volume
12pub_type
杂志文章abstract::Molecular background of neurogenetic disease is briefly reviewed. Importance and usefulness of genetic testing are emphasized. Molecular genetics is a powerful tool for investigation of epileptic syndromes. Diagnosis based on gene analysis will give a new insight for pathophysiology and clinical outcome of the patient...
journal_title:Brain & development
pub_type: 历史文章,杂志文章,评审
doi:10.1016/j.braindev.2011.01.007
更新日期:2011-10-01 00:00:00
abstract:OBJECTIVE:Autonomic nervous system activity is recognized as a major component of emotional responses. Future reward/punishment expectations depend upon the process of decision making in the frontal lobe, which is considered to play an important role in executive function. The aim of this study was to investigate the r...
journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/j.braindev.2017.03.004
更新日期:2017-08-01 00:00:00
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journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/j.braindev.2011.09.005
更新日期:2012-06-01 00:00:00
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journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/j.braindev.2019.07.010
更新日期:2020-01-01 00:00:00
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journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/j.braindev.2008.10.008
更新日期:2009-10-01 00:00:00
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journal_title:Brain & development
pub_type: 杂志文章,评审
doi:10.1016/s0387-7604(01)00308-4
更新日期:2001-11-01 00:00:00
abstract::Hypomelanosis of Ito (HI) is a neurocutaneous syndrome with multisystemic involvement. Its most frequent neurological abnormalities are mental retardation and seizures. EEG, CT and MRI findings are not characteristic enough to be diagnostic. In this report, we describe a patient with typical cutaneous lesions of HI an...
journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/0387-7604(95)00101-8
更新日期:1996-01-01 00:00:00
abstract::We examined the effects of stimulus rates on the somatosensory evoked potential (SEP) amplitudes following median nerve stimulation at the wrist in 42 children. We divided these subjects into five groups according to their age (0-6 months, 7-12 months, 1-3 years, 4-6 years and more than 7 years) and measured the peak-...
journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/s0387-7604(98)00092-8
更新日期:1999-03-01 00:00:00
abstract::Assessment of treatment strategies in febrile seizures should be based on short- and long-term outcomes, with and without acute, intermittent, or chronic medical intervention, as well as short- and long-term side effects. Febrile seizures are a benign condition with a normal neurological, motor, intellectual, and cogn...
journal_title:Brain & development
pub_type: 杂志文章,评审
doi:10.1016/s0387-7604(96)00059-9
更新日期:1996-11-01 00:00:00
abstract::In this study a comparison of the myelination rate in humans in normal and pathologic conditions was made. The progress of myelination was examined on slides stained by the Klüver-Barrera method and evaluated as to four degrees. The prenatal myelination in the brain stem in a group of newborns who died of pregnancy pa...
journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/s0387-7604(12)80328-7
更新日期:1990-01-01 00:00:00
abstract:BACKGROUND:Aromatic l-amino acid decarboxylase (AADC) deficiency (OMIM #608643) is a rare and severe disorder of biogenic amine synthesis caused by mutations in the DDC gene. The phenomenology of the movement disorder includes intermittent oculogyric crises and limb dystonia, generalized athetosis, and impaired volunta...
journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/j.braindev.2018.08.003
更新日期:2019-02-01 00:00:00
abstract::A research committee supported by the Japanese government conducted a nationwide survey on the epidemiology of acute encephalopathy in Japan using a questionnaire. A total of 983 cases reportedly had acute encephalopathy during the past 3 years, 2007-2010. Among the pathogens of the preceding infection, influenza viru...
journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/j.braindev.2011.07.012
更新日期:2012-05-01 00:00:00
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journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/j.braindev.2015.02.010
更新日期:2015-10-01 00:00:00
abstract::Morphological and biochemical analysis of tissue from a 21-week-old fetus with Krabbe disease was performed. Galactosylceramidase activity was virtually absent in cultured amniotic cells obtained during the pregnancy of this fetus. The prenatal diagnosis was confirmed by enzymatic analysis of fetal cultured skin fibro...
journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/0387-7604(94)90013-2
更新日期:1994-11-01 00:00:00
abstract::l-2-Hydroxyglutaric aciduria (l-2-HGA) is a rare inborn error of metabolism. Mainly, patients with this disorder exhibit neurological symptoms and characteristic neuroradiological findings, such as subcortical white matter abnormalities, which are believed to be caused by the toxicity of the accumulation of l-2-hydrox...
journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/j.braindev.2015.04.012
更新日期:2016-01-01 00:00:00
abstract::The molybdenum cofactor is essential for the function of sulphite oxidase, xanthine dehydrogenase, and aldehyde oxidase enzymes. Molybdenum cofactor deficiency (MoCD) is a fatal disease resulting in severe neurological damage and death in early childhood. MoCD is an autosomal recessive condition which may mimic ischae...
journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/j.braindev.2006.10.007
更新日期:2007-07-01 00:00:00
abstract::Congenital cerebellar ataxia is usually thought to be of cerebellar origin. We report two children with congenital cerebellar ataxia, in whom neuroimaging investigations suggest the possibility of a parietal etiology. The two boys showed hypotonia, delayed motor and cognitive development followed by marked, truncally ...
journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/s0387-7604(98)00021-7
更新日期:1998-06-01 00:00:00
abstract::A 6-month-old boy with persistent primitive trigeminal artery (PPTA) presented with stridor, dysphagia, delayed motor development and postural neck and shoulder dystonia. Magnetic resonance imaging/angiography and ultrasonography revealed PPTA, with flow from the dilated basilar artery to the right internal carotid ar...
journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/j.braindev.2006.08.008
更新日期:2007-04-01 00:00:00
abstract::We report seizures induced by adrenocorticotropic hormone (ACTH), which were demonstrated clinically and electro-encephalographically, in a severely handicapped 7-month-old infant with West syndrome due to perinatal hypoxicischemic encephalopathy. Although tonic spasms (original seizures) decreased soon after starting...
journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/s0387-7604(89)80063-4
更新日期:1989-01-01 00:00:00
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journal_title:Brain & development
pub_type:
doi:10.1016/j.braindev.2020.12.009
更新日期:2021-01-12 00:00:00
abstract::Six females with Rett syndrome (RS)--all seriously motor disabled with clinical symptomatology indicating not only brain but also spinal cord impairment--were investigated using auditory and somatosensory evoked responses techniques. In all patients the responses representing the pathways through the upper spinal cord...
journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/s0387-7604(87)80076-1
更新日期:1987-01-01 00:00:00
abstract::Carrier detection for 12 women and prenatal diagnosis for six fetuses in Japanese families with a patient with Menkes disease (MNK) were performed by gene analysis and/or measurement of the copper concentration in cultured cells. Six out of eight mothers of MNK patients were carriers while two (25%) were not carriers....
journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/s0387-7604(02)00093-1
更新日期:2002-10-01 00:00:00
abstract::Thirty-one epileptic patients, selected from among 900 children with previous febrile convulsions and subsequent epilepsy, were typed for HLA antigens. In 16 of the 31 patients CMV was isolated from the urine shortly after the appearance of spontaneous fits; in the remaining 15 patients the virus was never detected. A...
journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/s0387-7604(88)80008-1
更新日期:1988-01-01 00:00:00
abstract::Autism is now widely accepted as a biological disorder which, by and large, starts before birth. It has been shown that serotonin (5-HT) is associated with several psychological processes and hyperserotoninemia is observed in some autistic patients. The results of previous reports about family-based association studie...
journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/j.braindev.2005.09.003
更新日期:2006-05-01 00:00:00
abstract::This is the first case report on the diagnosis of spinal cord injury due to hemorrhage during the neonatal period using magnetic resonance imaging (MRI). Somatosensory evoked potentials are also helpful in the functional demonstration of this lesion. When discrepant signs, alert consciousness and intact cranial nerves...
journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/0387-7604(94)90114-7
更新日期:1994-01-01 00:00:00
abstract::Abnormalities of the cerebral arteries and the aorta are more common in young patients with tuberous sclerosis than in the rest of the population. Strokes have been reported but there is no confirmation that embolization of cerebral arteries by fragments of cardiac rhabdomyoma plays a role in the higher incidence of s...
journal_title:Brain & development
pub_type: 杂志文章,评审
doi:10.1016/s0387-7604(89)80003-8
更新日期:1989-01-01 00:00:00
abstract::In the past decade research on childhood epilepsy in our country has progressed in a step-by-step fashion. At first clinical experiences of the diagnosis and treatment of childhood epilepsy and febrile convulsions as to the results of follow-up studies were published. These have helped to overcome the barriers of trad...
journal_title:Brain & development
pub_type: 杂志文章
doi:
更新日期:1988-01-01 00:00:00
abstract:BACKGROUND:The majority of spinal muscular atrophy (SMA) patients showed homozygous deletion or other mutations of SMN1. However, the genetic etiology of a significant number of SMA patients has not been clarified. Recently, mutation in the gene underlying cat SMA, limb expression 1 (LIX1), has been reported. Similarit...
journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/j.braindev.2009.06.008
更新日期:2010-05-01 00:00:00
abstract::We report the pedigree of a family in which a mother and her two children, a boy and a girl, all suffer from a similar, though variably expressed cerebral disorder, seen on CT as uni- or bilateral cavities within the supratentorial white matter in communication with the ventricular system. Additional white matter hypo...
journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/s0387-7604(84)80010-8
更新日期:1984-01-01 00:00:00
abstract::The present study was undertaken to clarify how we should assess the necessity of close follow-up in each case, when we first examine an infant with ankle clonus within the first year of life. The neurologic prognoses of 169 infants who had exhibited ankle clonus at least once during the first year of life were review...
journal_title:Brain & development
pub_type: 杂志文章
doi:10.1016/s0387-7604(96)00069-1
更新日期:1997-01-01 00:00:00