• Title/Summary/Keyword: Motor Nerve

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Distribution of Substance P Immunoreactive Neurons and Their Synaptic Organization in the Cat Thoracic Cord (고양이 흉수에서 Substance P 면역반응 신경원의 분포와 연접연구)

  • Lee, Seung-Kyun;Park, Soo-Seog
    • The Korean Journal of Pain
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    • v.9 no.2
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    • pp.326-335
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    • 1996
  • Background: Though a number of studies have described the distribution of substance P(SP)-like immunoreactivity in the spinal cord, they have been focused on lamina I and II of the dorsal horn and there are little morphological studies on the topographic distribution and ultrastructure of the SP immunoreactive neurons especially in the ventral horn of the spinal cord. this study was conducted to identify distribution pattern of SP immunoreactive neurons and to difine the synaptic organization of their processes in ventral horn of the thoracic cord of the cat by preembbeding immunocytochemical method using SP antiserum. Methods: Five adults cats of either sex were used and deeply anesthetized by intramuscular injection of ketamine. After removal of the spinal cord, samples of thoracic cord were taken and placed in fresh fixative at $4^{\circ}C$ for 2 hours. Transverse sections $50{\mu}m$ thick were processed using the preembbeding immunocytochemical method and incubated consecutively in the specific primary antibody and the 10% normal goat serum, the rabbit anti-substance P antiserum, the biotin-labelled goat anti-rabbit IgG and finally the avidin-biotin-peroxidase complex. The processed tissue sections were throughly washed and stained in the black with 1% uranyl acetate. Section were examined on a electron microscope. Results: 1) SP immunoreactive neurons were observed in the gray matter around central canal. 2) In lamina I and II SP immunoreactivity was observed in both myelinated and unmyelinated nerve fibers, but in ventral horn only in the unmyelinated nerve fibers. 3) SP immunoreactive axon terminals with small round and large dense core vesicles made chemical synapses onto the dendrites of motor neurons in the ventral horn. Conclusion: SP immunoreactive neurons might play an important role in modulation of motor neurons in the ventral horn of the thoracic cord of the cat.

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Design and embodiment of bloodstream diagnosis device that introduce EPLD and TMS320VC5410 for cerebrum disease measurement in supersonic waves base (초음파 기반에서 대뇌질환 측정을 위한 EPLD와 TMS320VC5410를 도입한 혈류 진단장치의 설계 및 구현)

  • Kim, Whi-Young
    • Journal of the Korea Computer Industry Society
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    • v.7 no.4
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    • pp.447-454
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    • 2006
  • Imbecility, Parkinson's disease, the brain disease occurrence rate such as motor nerve disease are increasing rapidly since 1980 years, according to the Britain, the United States of America, Japan, Germany, result that investigate the spanish occurrence rate, was expose that imbecility mortality including Alzheimer's disease increased more than man case 3 triple and man and woman of brain disease mortality increases by about 50% with Parkinson's disease and motor nerve disease. <중략> first of all, courtesy call is important. So that can find out danger benevolence and occurrence danger at early stage, person arranged brain vein because examination does special Quality examination and modelling Tuesday embodying possible Cerebrovascular Ultrasonogram (brain vein supersonic waves) and prove excellency of performance from time to time. Is going to apply to brain disease patient of other disease if supplement system hereafter, and this research tried to study special quality that standardization is not producing poetic theme width directly and approach.

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The Role of Radiologic Study in Diagnostic Work-up of Headache Patients (두통환자에 대한 방사선학적 검사의 진단적 가치)

  • Ban, Sung Soo;Choe, Il Seung;Ahn, Chi Sung;Jung, Myung Hun;Choi, Sun Wook;Song, Kwan Young;Kang, Dong Soo
    • Journal of Korean Neurosurgical Society
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    • v.29 no.10
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    • pp.1333-1339
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    • 2000
  • Objective : The goal of this study is to identify the significant radiologic abnormalities in patients complaining headache and to determine predictive factors for clinically significant radiological abnormalities. Method : The study population was 410 patients having underwent CT or MRI study among 1000 patients complaining headache in outpatient basis between 1996-1999. All of these patients answered self-administered questionaire about their headaches. We reviewed the patient's charts and the questionaires and examined the radiologic study results. Result : Of the 410 patients referred for CT or MRI study, male : female ratio was 1 : 1.97. Twenty-five patients(6.1%) revealed clinically significant organic lesions. Mean age was 46.1 in radiologic abnormal group and 48.4 in normal group. Short symptom duration(p<0.01), motor weakness(p<0.05), vomiting(p<0.05), cranial nerve palsy(p<0.05), and trauma history(p<0.05) were factors indicated higher incidence of radiologic abnormality. But, patients age, and severity of headache were not associated with clinically significant radiologic lesion. The ratio of radiologic abnormality was 0.8% in patients not having any risk factor. Conclusion : The results indicate that radiologic study should be done in headache patients having the risk factors such as short symptom duration, motor weakness, vomiting, cranial nerve palsy, trauma history. For patients without any such a risk factor, the radiologic study doesn't seem mandatory.

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A case of Bickerstaff's brainstem encephalitis in childhood (Bickerstaff 뇌간 뇌염 1례)

  • Kim, Ji-Youn;Kim, Young-Ok;Son, Young-Jun;Woo, Young-Jong
    • Clinical and Experimental Pediatrics
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    • v.53 no.4
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    • pp.607-611
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    • 2010
  • Bickerstaff's brainstem encephalitis (BBE) is a rare disease diagnosed by specific clinical features such as 'progressive, relatively symmetric external ophthalmoplegia and ataxia by 4 weeks' and 'disturbance of consciousness or hyperreflexia' after the exclusion of other diseases involving the brain stem. Anti-ganglioside antibodies (GM, GD and GQ) in the serum or cerebrospinal fluid (CSF) are sometimes informative for the diagnosis of BBE because of the rarity of positive findings in other diagnositic methods: brain magnetic resonance imaging (MRI), routine CSF examination, motor nerve conduction study, and needle electromyography. We report a rare case of childhood BBE with elevated anti-GM1 antibodies in the serum, who had specific clinical symptoms such as a cranial polyneuropathy presenting as ophthalmoplegia, dysarthria, dysphagia, and facial weakness; progressive motor weakness; altered mental status; and ataxia. However, the brain MRI, routine CSF examination, nerve conduction studies, electromyography, somatosensory evoked potentials, and brainstem auditory evoked potentials were normal. BBE was suspected and the patient was successfully treated with intravenous immunoglobulins.

Localization of the central nuclei innervating the rat colon using pseudorabies virus (Pseudorabies 바이러스를 이용한 랫드 결장을 지배하는 중추신경핵의 동정)

  • Yi, Seong-joon;Lee, Bong-hee;Kim, Jin-sang;Kang, Tae-chun;Lee, Heungshik S.
    • Korean Journal of Veterinary Research
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    • v.37 no.3
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    • pp.479-487
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    • 1997
  • The present study was carried out to localize the central nuclei innervating the rat colon using pseudorabies virus-Bartha strain which has been known as a very useful neurotracer. The results were as follows. The central nuclei innervating the proximal colon were premotor area, subfornical organ, preoptic area in telencephalon, and paraventricular nucleus, bed nucleus of stria terminalis, retrochiasmatic area in the diencephalon, and periaqueductal gray, Edinger-Westphal nucleus, tegmental nucleus in the mesencephalon, and parabrachial nucleus, locus ceruleus, A5 area, $K{\ddot{o}}lliker$-Fuse nucleus, magnocellular reticular nucleus in the metencephalon, and nucleus tractus solitarius, A1 noradrenergic cell group, dorsal motor nucleus of vagus nerve, nucleus ambiguus, area postrema in the myelencephalon. In the spinal cord, the thoracic division had some nuclei innervating the proximal colon. The nuclei innervating the distal colon were paraventricular nucleus of the diencephalon, Edinger-Westphal nucleus of midbrain, and parabrachial nucleus, locus ceruleus, A5 area, $K{\ddot{o}}lliker$-Fuse nucleus, magnocellular reticular nucleus of the metencephalon, and nucleus tractus solitarius, dorsal motor nucleus of vagus nerve, nucleus ambiguus, area postrema in the myelencephalon. In the spinal cord, thoracic, lumbar and sacral division innervated the distal colon.

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Comparison and Evaluation of Non-invasive and Non-pharmacological Methods for Relieving Motion Sickness (MS) (멀미 완화를 위한 비침습적 및 비약리적 방법 비교 및 평가)

  • Park, Seung Won;Choi, Jun Won;Nam, Sanghoon;Choi, Yeo Eun;Lee, Kang In;Jeong, Myeon Gyu;Shin, Tae-Min;Kim, Han Sung
    • Journal of Biomedical Engineering Research
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    • v.42 no.5
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    • pp.211-224
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    • 2021
  • Purpose: The purpose of this study is to present a way to alleviate motion sickness(MS) by stimulating acupoint through PEMFs, and to assess the effectiveness of PEMFs against stimulation previously used to stimulate acupoint using biosignal evaluations and surveys. Materials and Methods: Thirteen healthy men participated in the experiment. MS was induced in the participants, and MS relief stimulation was applied for 30 minutes. There were 4 types of MS relief stimulation, and Sham, Reliefband, Transcutaneous electrical nerve stimulation(TENS), and Pulsed electromagnetic fields stimulation(PEMFs) were used. The biosignals were measured during 30 minutes of applying MS relief stimulation, and the symptoms of MS were evaluated through a questionnaire survey. The measured biosignals are Electrocardiogram(ECG), Electrodermal activity(EDA), Respiration, Skin temperature(SKT), and Electrogastrogram(EGG). A one-way ANOVA test was performed for the rate of change by stimulation for MS relief over time. Results: Participants who were stimulated had a sharp decrease in MS symptoms. Biosignals were analyzed to evaluate autonomic nervous system activity, and the parasympathetic nervous system could be activated through stimulation. Conclusion: TENS and PEMFs were more effective in relieving MS symptoms than Reliefband. It is believed that PEMFs will be effective in consideration of the comfort of participants to be applied to actual vehicles, and studies to further verify the effects of PEMFs on MS should be conducted.

Study on the Change of Nerve Conduction with Wrist Flexion in Carpal Tunnel Syndrome (수근관증후군에서 수근관절굴곡이 신경전도속도에 미치는 영향)

  • Lee, Se-Jin;O, Kyung-Yoon;Park, Mee-Yeong;Hah, Jung-Sang;Byun, Yeung-Ju;Park, Choong-Suh
    • Journal of Yeungnam Medical Science
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    • v.8 no.1
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    • pp.79-85
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    • 1991
  • The author studied 20 healthy adults (20 hands) as a control and 30 patients (40 hands) with carpal tunnel syndrome to evaluate the clinical usefulness of measuring nerve conduction velocity after wrist fiexion in diagnosis of carpal tunnel syndrome. The median nerve conduction velocity over wrist to finger segment was measured before and after wrist flexion for 1, 2 and 5 minutes, using belly-tendon method for motor nerve distal latency(MNDL) and antidromic method for sensory nerve conduction velocity(SNCV). The results were as follows : 1. In control froup, MNDL increased in 1 hand and SNCV decreased in 2 hands after wrist flexion. In patient group, MNDL increased in 2 hands and SNCV decreased in 3 hands after wrist flexion. 2. In both control and patient group, there were no significant changes in mean values of SNCV and MNDL between before and after wrist flexion. 3. Phalen's wrist flexion test was positive in 5 percent of control and 60 percent of patient group. 4. Tinel's sign was present in 10 percent of control and 33 percent of patient group.

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Clinical Analysis of Recurrent Bell's Palsy in One University Hospital (한 대학병원에서 분석한 재발 벨마비 환자의 임상양상)

  • Kim, Chang Hyeong;Lee, Dong Kuck
    • Annals of Clinical Neurophysiology
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    • v.15 no.1
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    • pp.1-6
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    • 2013
  • Background: Bell's palsy (BP) is the most common cause of unilateral lower motor facial palsy. Recurrent paralysis of the facial nerve is unusual and reported in only 7-8%. Methods: A total of 394 consecutive patients with acute BP patients were enrolled at Daegu Catholic University Hospital from July 2005 to September 2012. We classified the patients into two groups-single BP and recurrent BP-and compared them by patient characteristics, clinical features, MRI findings, electrophysiologic findings and prognosis. The degree of BP was graded according to the House and Brackmann facial nerve grading system. Results: Recurrent BP was observed in 31 (7.9%) patients. The number of recurrence was varied from 2 to 5. The recurrent BP (9.7%) had more incidence of family history and MRI enhancement than those of single BP (2.2%, p=0.047). The single BP (63.4%) had better recovery than recurrent BP (45.2%, p=0.045). Conclusions: The recurrent BP had more incidence of family history, MRI enhancement and poor prognosis than the single BP.

The Effect of Irradiation During Resistance Exercise Using a Diagonal Pattern on the Excitability of Nerves (대각선 패턴에서 저항운동 시 발생한 방산의 효과가 신경의 흥분성에 미치는 영향)

  • Rhee, Min-Hyung;Choi, Su-Hong;Ha, Kyung-Jin;Lee, Sang-Yeol
    • PNF and Movement
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    • v.19 no.1
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    • pp.97-104
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    • 2021
  • Purpose: The human body can experience a variety of injuries. As a result, it may be difficult to directly treat the damaged area. In such a case, indirect treatment is required. Indirect treatment is typically PNF treatment. Morphological changes in muscle have been confirmed through several previous studies; however, few studies have analyzed neurological changes. Therefore, the purpose of this study was to determine how irradiation during resistance exercise using a diagonal pattern effects neurological excitability. Methods: Electromyography was performed on 13 healthy adults. A compound muscle action potential (CMAP) was obtained through a median motor nerve conduction velocity test, which was conducted before and after performing the irradiation exercise and general exercise. Results: Compared to baseline measurements, there was no significant difference in the latency of the irradiation exercise and general exercise. The amplitude of the CMAP measured after the irradiation exercise was significantly higher than after general exercise. Conclusion: Neurological excitability was high in irradiation during resistance exercise using a diagonal pattern. When clinically direct treatment is difficult, it is thought that irradiation can be used indirectly as a technique to induce nerve excitability.

Use of the Fix and Flap Approach to Complex Open Elbow Injury: The Role of the Free Anterolateral Thigh Flap

  • Chui, Christopher Hoe-Kong;Wong, Chin-Ho;Chew, Winston Y.;Low, Mun-Hon;Tan, Bien-Keem
    • Archives of Plastic Surgery
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    • v.39 no.2
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    • pp.130-136
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    • 2012
  • Background : Complex elbow injuries with associated nerve, muscle, or joint injury commonly develop post-inury stiffness. In order to preserve function, joint congruency, elbow stability and durable wound coverage must be achieved in a timely manner. Methods : A retrospective review of patients who underwent orthopaedic fixation followed by free anterolateral thigh (ALT) flap soft tissue coverage was performed. Five patients were identified and included in this study. Results : We present a series of 5 cases managed with this principle. Soft tissue defects ranged in size from $4{\times}9cm$ ($36cm^2$) to $15{\times}30cm$ ($450cm^2$) and were located either posteriorly (n=4) or anteriorly (n=1). Associated injuries included open fractures (n=3) and motor nerve transection (n=2). Wound coverage was achieved in a mean duration of 18.8 days (range, 11 to 42 day). There were no flap failures and no major complications. The mean postoperative active elbow motion was $102^{\circ}$ (range, $45^{\circ}$ to $140^{\circ}$). Conclusions : In our small series we have highlighted the safety and utility of using the free ALT flap in complex elbow injuries. The ALT flap has many advantages which include abundant skin and subcutaneous tissue; vascularised vastus lateralis muscle that was used in our series to obliterate dead space, provide a vascular bed for nerve grafts and combat infection; and, access to fascia lata grafts for reconstruction of the triceps tendon.