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Perilesional reorganization of somatosensory function following traumatic cortical contusion A case report

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Neural Regeneration Research 2011年第11期6卷 830-833页

作者： mi young lee Sung Ho Jang Department of Physical Therapy College of Health and Therapy Daegu Haany University Daegu Republic of Korea Department of Physical Medicine and Rehabilitation College of Medicine Yeungnam University Daegu 705-717 Republic of Korea

The present study reports on a 23-year-old male patient with somatosensory dysfunction of the left hand following cortical contusion. His somatosensory dysfunction recovered to a nearly normal state at 6 months after injury. Functional MRI results demonstrated that the contralateral primary sensorimotor cortex centered on the primary somatosensroy cortex was activated during touch stimulation of the patient＇s right hand and either hand of control subjects. By contrast, the anterior area of the lesion centered on the precentral knob in the right hemisphere was activated during touch stimulation of the left hand. These findings show that the somatosensory function of the affected hand appears to have been recovered by the somatosensory cortex reorganizing into the anterior area of the contused primary somatosensory cortex.

关键词： stroke somatosensory recovery brain mapping brain plasticity brain injury functional MRI neural regeneration

Changes in cortical activation patterns accompanying somatosensory recovery in a stroke patient: a functional magnetic resonance imaging study

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Neural Regeneration Research 2014年第15期9卷 1485-1488页

作者： Yong Hyun Kwon mi young lee Department of Physical Therapy Yeungnam University CollegeNamguDaegu705-703Republic of Korea Department of Physical Therapy College of Health and TherapyDaegu Haany UniversityGyeongsan-siGyeongsangbuk-do712-715Republic of Korea

The somatosensory system plays a crucial role in executing precise movements by providing sensory feedback （Farrer et al., 2003; Rabin and Gordon, 2004）. Somatosensory dys- function is a common problem following stroke. In partic- ular, somatosensory impairments, such as impairment in touch, proprioception, light touch, and vibration have been frequently observed （Carey et al., 1993; Sullivan and Hed- man, 2008; Tyson et al., 2008）. Patients with somatosensory dysfunction show negative effects on motor control, and it sometimes becomes difficult to perform daily activities independently.

关键词： SMA Changes in cortical activation patterns accompanying somatosensory recovery in a stroke patient a functional magnetic resonance imaging study

Brain activation induced by different strengths of hand grasp: a functional magnetic resonance imaging study

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Neural Regeneration Research 2020年第5期15卷 875-879页

作者： Hyeok Gyu Kwon Ju Sang Kim mi young lee Department of Physical Therapy College of Health ScienceEulji UniversityGyeonggiRepublic of Korea Department of Physical Therapy and Rehabilitation Yeungnam University HospitalDaeguRepublic of Korea Department of Physical Therapy College of Health and TherapyDaegu Haany UniversityGyeongsansiRepublic of Korea

mirror neuron system can be activated by observation and execution of an *** has an important function of action *** investigated brain activations in humans by observing the strength of a hand grasp using functional magnetic resonance *** right-handed healthy individuals,consisting of 10 males and 10 females,aged 22.40 ± 2.04 years,were recruited into this study from September to November 2017 via *** hand grasp task video showed a hand lightly grasping and releasing a ball *** hand grasp task video showed a hand tightly grasping and releasing a ball *** magnetic resonance imaging block design paradigm comprised five stimulation blocks alternating with five baseline *** blocks were presented with two stimulus tasks,consisting of a light grasp and a powerful *** of interest was defined around the inferior parietal lobule,inferior frontal gyrus,and superior temporal sulcus which have been called mirror neuron *** inferior parietal lobule,fusiform,postcentral,occipital,temporal,and frontal gyri were activated during light and powerful grasp *** BOLD signal response of a powerful grasp was stronger than that of a light *** results suggest that brain activation of the inferior parietal lobule,which is the core brain region of the mirror neuron system,was stronger in the powerful grasp task than in the light grasp *** believe that our results might be helpful for instructing rehabilitation of brain *** study was approved by the Institutional Review Board of Daegu Oriental Hospital of Daegu Haany University on September 8,2017 (approval ***-D-17020-PRO-01).

关键词： brain activation fMRI human brain inferior parietal lobule light grasp mirror neuron system powerful grasp

Effects of visual information regarding tactile stimulation on the somatosensory cortical activation：a functional MRI study

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Neural Regeneration Research 2017年第7期12卷 1119-1123页

作者： Hyeok Gyu Kwon Sung Ho Jang mi young lee Department of Physical Therapy College of Health Sciences Catholic University of Pusan Pusan Republic of Korea Department of Physical Medicine and Rehabilitation College of Medicine Yeungnam University Daegu Republic of Korea Department of Physical Therapy College of Health and Therapy Daegu Haany University Gyeongsansi Republic of Korea

Many studies have investigated the evidence for tactile and visual interactive responses to activation of various brain ***,few studies have reported on the effects of visuo-tactile multisensory integration on the amount of brain activation on the somatosensory cortical *** aim of this study was to examine whether coincidental information obtained by tactile stimulation can affect the somatosensory cortical activation using functional *** right-handed healthy subjects were recruited for this *** tasks（tactile stimulation and visuotactile stimulation）were performed using a block paradigm during f MRI *** the tactile stimulation task,in subjects with eyes closed,tactile stimulation was applied on the dorsum of the right hand,corresponding to the proximal to distal directions,using a rubber *** the visuotactile stimulation task,tactile stimulation was applied to observe the attached mirror in the MRI chamber reflecting their hands being touched with the *** the result of SPM group analysis,we found brain activation on the somatosensory cortical *** stimulation task induced brain activations in the left primary sensory-motor cortex（SM1）and secondary somatosensory cortex（S2）.In the visuo-tactile stimulation task,brain activations were observed in the both SM1,both S2,and right posterior parietal *** all tasks,the peak activation was detected in the contralateral *** examined the effects of visuo-tactile multisensory integration on the SM1 and found that visual information during tactile stimulation could enhance activations on SM1 compared to the tactile unisensory stimulation.

关键词： nerve regeneration functional MRI somatosensory cortex somatosensory cortical activation visuotactile stimulation neural regeneration

Delayed gait recovery in a stroke patient

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Neural Regeneration Research 2013年第16期8卷 1514-1518页

作者： Jeong Pyo Seo mi young lee Yong Hyun Kwon Sung Ho Jang Department of Physical Medicine and Rehabilitation College of Medicine Yeungnam University Department of Physical Therapy College of Health and Therapy Daegu Haany University Department of Physical Therapy Yeungnam College of Science & Technology

We report on a stroke patient who showed delayed gait recovery between 8 and 11 months after the onset of intracerebral hemorrhage. This 32-year-old female patient underwent craniotomy and drainage for right intracerebral hemorrhage due to rupture of an arteriovenous malformation. Brain MR images revealed a large leukomalactic lesion in the right fronto-parietal cortex. Diffusion tensor tractography at 8 months after onset revealed that the right corticospinal tract was severely injured. At this time, the patient could not stand or walk despite undergoing rehabilitation from 2 months after onset. It was believed that severe spasticity of the left leg and right ankle was largely responsible, and thus, antispastic drugs, antispastic procedures （alcohol neurolysis of the motor branch of the tibial nerve and an intramuscular alcohol wash of both tibialis posterior muscles） and physical therapy were tried to control the spasticity. These measures relieved the severe spasticity, with the result that the patient was able to stand at 3 months. In addition, the improvements in sensorimotor function, visuospatial function, and cognition also seemed to contribute to gait recovery. As a result, she gained the ability to walk independently on even floor with a left ankle foot orthosis at 11 months after onset. This case illustrates that clinicians should attempt to find the cause of gait inability and to initiate intensive rehabilitation in stroke patients who cannot walk at 3-6 months after onset.

关键词： neural regeneration brain injury stroke diffusion tensor imaging sequelae gait walk motor recovery corticospinal tract rehabilitation intracerebral hemorrhage grants-supported paper neuroregeneration

Structural neural connectivity of the vestibular nuclei in the human brain:a diffusion tensor imaging study

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Neural Regeneration Research 2018年第4期13卷 727-730页

作者： Sung Ho Jang mi young lee Sang Seok Yeo Hyeok Gyu Kwon Department of Physical Medicine and Rehabilitation College of MedicineYeungnam University Department of Physical Therapy College of Health and TherapyDaegu Haany University Department of Physical Therapy College of Health SciencesDankook University Department of Physical Therapy College of Health SciencesCatholic University of Pusan

Many animal studies have reported on the neural connectivity of the vestibular nuclei（VN）.However,little is reported on the structural neural connectivity of the VN in the human *** this study,we attempted to investigate the structural neural connectivity of the VN in 37 healthy subjects using diffusion tensor tractography.A seed region of interest was placed on the isolated VN using probabilistic diffusion tensor *** was defined as the incidence of connection between the VN and each brain *** VN showed 100% connectivity with the cerebellum,thalamus,oculomotor nucleus,trochlear nucleus,abducens nucleus,and reticular formation,irrespective of *** the threshold of 5 streamlines,the VN showed connectivity with the primary motor cortex（95.9%）,primary somatosensory cortex（90.5%）,premotor cortex（87.8%）,hypothalamus（86.5%）,posterior parietal cortex（75.7%）,lateral prefrontal cortex（70.3%）,ventromedial prefrontal cortex（51.4%）,and orbitofrontal cortex（40.5%）,*** results suggest that the VN showed high connectivity with the cerebellum,thalamus,oculomotor nucleus,trochlear nucleus,abducens nucleus,and reticular formation,which are the brain regions related to the functions of the VN,including equilibrium,control of eye movements,conscious perception of movement,and spatial orientation.

关键词： nerve regeneration vestibular nuclei neural connectivity diffusion tensor tractography cerebellum oculomotor nucleus neural regeneration

Cortical activation pattern during shoulder simple versus vibration exercises： a functional near infrared spectroscopy study

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Neural Regeneration Research 2017年第8期12卷 1294-1298页

作者： Sung Ho Jang Sang Seok Yeo Seung Hyun lee Sang Hyun Jin mi young lee Department of Physical Medicine and Rehabilitation College of Medicine Yeungnam University Daegu Republic of Korea Department of Physical Therapy College of Health Science Dankook University Cheonan-si Republic of Korea Robot System Research Division Daegu Gyeongbuk Institute of Science & Technology Daegu Republic of Korea Department of Physical Therapy College of Health and Therapy Daegu Haany University Gyeongsan-si Republic of Korea

To date, the cortical effect of exercise has not been fully elucidated. Using the functional near infrared spectroscopy, we attempted to compare the cortical effect between shoulder vibration exercise and shoulder simple exercise. Eight healthy subjects were recruited for this study. Two different exercise tasks（shoulder vibration exercise using the flexible pole and shoulder simple exercise） were performed using a block paradigm. We measured the values of oxygenated hemoglobin in the four regions of interest： the primary sensory-motor cortex（SM1 total, arm somatotopy, and leg and trunk somatotopy）, the premotor cortex, the supplementary motor area, and the prefrontal cortex. During shoulder vibration exercise and shoulder simple exercise, cortical activation was observed in SM1（total, arm somatotopy, and leg and trunk somatotopy）, premotor cortex, supplementary motor area, and prefrontal cortex. Higher oxygenated hemoglobin values were also observed in the areas of arm somatotopy of SM1 compared with those of other regions of interest. However, no significant difference in the arm somatotopy of SM1 was observed between the two exercises. By contrast, in the leg and trunk somatotopy of SM1, shoulder vibration exercise led to a significantly higher oxy-hemoglobin value than shoulder simple exercise. These two exercises may result in cortical activation effects for the motor areas relevant to the shoulder exercise, especially in the arm somatotopy of SM1. However, shoulder vibration exercise has an additional cortical activation effect for the leg and trunk somatotopy of SM1.

关键词： nerve regeneration functional near infrared spectroscopy cortical activation shoulder vibrationexercise flexible pole neural regeneration

Effects of acupuncture stimulation on brain activation induced by cue-elicited alcohol craving

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Neural Regeneration Research 2022年第5期17卷 1059-1064页

作者： Hyeok Gyu Kwon Seong Hun Choi Joon Ho Seo Chae Ha Yang mi young lee Department of Physical Therapy College of Health ScienceEulji UniversityGyeonggiRepublic of Korea Department of Anatomy and Histology College of Oriental MedicineDaegu Haany UniversityGyeongsanRepublic of Korea Department of Rehabilitation Gyeongbuk Regional Rehabilitation HospitalGyeongsanRepublic of Korea Department of Physiology College of Korean MedicineDaegu Haany UniversityDaeguRepublic of Korea Department of Physical Therapy College of Biomedical ScienceDaegu Haany UniversityGyeongsanRepublic of Korea

Acupuncture has been shown to be effective on alcohol use ***,the underlying mechanism remains poorly *** investigate the effects of Shenmen(HT7)acupoint on brain activation induced by cue-elicited alcohol craving,30 right-handed healthy light to moderate alcohol drinkers were recruited from the *** were randomly assigned to undergo acupuncture either at HT7(experimental acupoint,n=15)or Jingqu(LU8,control acupoint,n=15)*** randomized controlled study was performed in Daegu Haany University and Daegu-Gyeongbuk Medical Innovation Foundation,Republic of *** and data collection were conducted from December 2018 to May *** results showed that after acupuncture at HT7 acupoint,the activation of orbitofrontal cortex and dorsolateral prefrontal cortex was greatly increased,while the activation of dorsolateral prefrontal cortex was obviously reduced,and subject's craving for alcohol was reduced when he/she seeing alcohol-related video clips involving various alcohols(beer,wine,or soju)or drinking *** at HT7 more greatly reduced subject's alcohol cravings than acupuncture at LU8 *** findings suggest that acupuncture can improve the self-control of mild to moderate social drinkers through the activation of the orbitofrontal cortex and dorsolateral prefrontal cortex,thereby reducing the craving for *** study protocol was approved by the Institutional Review Board of Daegu Haany University Korean Medicine Hospital,Republic of Korea(approval ***-D-18026-PRO-02)on November 30,2018.

关键词： acupuncture addiction alcohol brain activation craving cue functional MRI Shenmen(HT7)acupoint

Therapeutic benefit of repetitive transcranial magnetic stimulation for severe mirror movements A case report

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Neural Regeneration Research 2013年第6期8卷 569-574页

作者： Han Sun Kim Sung Ho Jang Zee-Ihn lee mi young lee Yun Woo Cho migyoung Kweon Su min Son Department of Physical Medicine and Rehabilitation College of MedicineYeungnam University Department of Pediatrics College of MedicineYeungnam University Department of Physical Medicine and Rehabilitation Daegu Fatima Hospital Department of Physical therapy College of Health and TherapyDaegu Haany University

Congenital mirror movements retard typical hand functions, but no definite therapeutic modality is available to treat such movements. We report an 8-year-old boy with severe mirror movements of both hands. His mirror movements were assessed using the Woods and Teuber grading scale and his fine motor skills were also evaluated by the Purdue Pegboard Test. A 2-week regimen of repetitive transcranial magnetic stimulation produced markedly diminished mirror movement symptoms and increased the fine motor skills of both hands. Two weeks after the completion of the regimen, mirror movement grades had improved from grade 4 to 1 in both hands and the Purdue Pegboard Test results of the right and left hands also improved from 12 to 14 or 13. These improvements were maintained for 1 month after the 2-week repetitive transcranial magnetic stimulation regimen. After 18 months, the mirror movement grade was maintained and the Purdue Pegboard test score had improved to 15 for the right hand while the left hand score was maintained at 13. This occurred without any additional repetitive transcranial magnetic stimulation or other treatment. These findings suggest that repetitive transcranial magnetic stimulation for this patient had a therapeutic and long-term effect on mirror movements.

关键词： neural regeneration neurorehabilitation clinical practice mirror movements Purdue Pegboard test hand transcranial magnetic stimulation hand function cortex suppression corticospinal tract grants-supported paper neuroregeneration