• Annals of Clinical Neurophysiology
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• 제7권2호
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• pp.65-74
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• 2005

Charcot-Marie-Tooth (CMT) disease was described by Charcot and Marie in France and, independently, by Tooth in England in 1886. CMT is the most common form of inherited motor and sensory neuropathy, and is a genetically heterogeneous disorder of the peripheral nervous system. Therefore, many genes have been identified as CMT-causative genes. Traditionally, subclassification of CMT have been divided into autosomal dominant inherited demyelinating (CMT1) and axonal (CMT2) neuropathies, X-linked neuropathy (CMTX), and autosomal recessive inherited neuropathy (CMT4). Recently, intermediate type (CMT-Int) with NCVs between CMT1 and CMT2 is considered as a CMT type. There are several related peripheral neuropathies, such as $D{\acute{e}}j{\acute{e}}rine$-Sottas neuropathy (DSN), congenital hypomyelination (CH), hereditary neuropathy with liability to pressure palsies (HNPP) and giant axonal neuropathy (GAN). Great advances have been made in understanding the molecular basis of CMT, and 17 distinct genetic causes of CMT have been identified. The number of newly discovered mutations and identified genetic loci is rapidly increasing, and this expanding list has proved challenging for physicians trying to keep up with the field. Identifying the genetic cause of inherited neuropathies is often important to determine at risk family members as well as diagnose the patient. In addition, the encouraging studies have been published on rational potential therapies for the CMT1A. Now, we develop a model of how the various genes may interact in the pathogenesis of CMT disorder.

• BMB Reports
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• 제47권6호
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• pp.354-359
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• 2014

The types of glia in the central nervous system (CNS) of the Drosophila embryo include longitudinal glia (LG), cell body glia (CBG), and peripheral glia (PG). Transcription factors, such as glial cell missing and reverse polarity, are well-established general glial cell markers. Only a few glial cell-specific markers have been identified in the Drosophila embryonic CNS, thus far. In the present study, we employed the glial cell-specific markers for LG (vir-1/CG5453 and CG31235), CBG (fabp/CG6783 and CG11902), and PG (CG2310 and moody/CG4322), and comprehensively analyzed their expression patterns, during the embryonic CNS development. Our study validated the specificity of a set of glial markers, and further revealed their spatio-temporal expression patterns, which will aid in the understanding of the developmental lineage, and investigating their role in the development and homeostasis of the Drosophila CNS in vivo.

• The Journal of Korean Physical Therapy
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• 제14권4호
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• pp.20-27
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• 2002

A role for ATP in nociception and pain induction was proposed. ATP-gated P2X ion channel receptors are localized throughout the nervous system and have been identified on neurons which participate in conduction of nociceptive information from the periphery to central nervous system. We consider the role of ATP as a peripheral activator of nociceptive sensory neuron via ATP-gated ion channels.

• Journal of Genetic Medicine
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• 제15권2호
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• pp.107-109
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• 2018

X-linked Charcot-Marie-Tooth disease type 1 (CMTX1) is caused by the mutation in GJB1 gene, characterized by the transient central nervous system involvement and long standing peripheral polyneuropathy which does not fulfill the criteria of demyelination or axonopathy. We describe a 37-year-old man with progressive bilateral leg weakness since his early teen. He suffered transient right hemiparesis, followed by quadriparesis at 14 years of age. When we examined him at 37 years of age, he presented a distal muscle weakness on lower extremities with a sensory symptom. The nerve conduction study demonstrated a motor conduction velocity between 26 and 49 m/s. The whole exome sequencing revealed a novel variant c.136 G>A in GJB1. This report will raise awareness in this rare disease, which is frequently misdiagnosed early in its course.

• 대한약학회:학술대회논문집
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• 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2-2
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• pp.134.1-134.1
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• 2003

In regard to $A\beta$ toxicity and AD, reactive oxygen species (ROS) are produced by macrophage families in response to $A\beta$ stimulation. In addition to this, neurotrophins (NTs) regulate the neuronal function as well as cell survival and the growth of various types of neurons in both the peripheral nervous system (PNS) and central nervous system (CNS). As high expressions of the ROS and NTs are a routine findings in neuronal cell damage, we wanted to investigate whether Rg3 can inhibit the production of ROS and NTs primary cell cultures. (omitted)

• Molecules and Cells
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• 제47권2호
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• pp.100030.1-100030.14
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• 2024

Both brown and white adipose tissues (BAT/WAT) are innervated by the peripheral nervous system, including efferent sympathetic nerves that communicate from the brain/central nervous system out to the tissue, and afferent sensory nerves that communicate from the tissue back to the brain and locally release neuropeptides to the tissue upon stimulation. This bidirectional neural communication is important for energy balance and metabolic control, as well as maintaining adipose tissue health through processes like browning (development of metabolically healthy brown adipocytes in WAT), thermogenesis, lipolysis, and adipogenesis. Decades of sensory nerve denervation studies have demonstrated the particular importance of adipose sensory nerves for brown adipose tissue and WAT functions, but far less is known about the tissue's sensory innervation compared to the better-studied sympathetic nerves and their neurotransmitter norepinephrine. In this review, we cover what is known and not yet known about sensory nerve activities in adipose, focusing on their effector neuropeptide actions in the tissue.

• Journal of Acupuncture Research
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• 제22권6호
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• pp.51-60
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• 2005

Objectives : This study was designed to evaluate the effect of inbalance of autonomic nerve system on peripheral facial palsy patients in comparison of Heart Rate Variability results of healthy control group with that of peripheral facial palsy group. Methods : The peripheral facial palsy patiens who visited the Dongguk university Bundang oriental medicine hospital from April to June in 2005 were tested Heart Rate Variability items which are Mean Heart Rate(MHRT), Standard Deviation of all the Normal RR intervals (SDNN), Root Mean Square of Successive Differences Between The Normal Heart Beats(RMSSD), Total Power(TP), Low Frequency, High Frequency, ratio between the Low Frequency and High Frequency power(LF/HF ratio). The Heart Rate Variability test results of peripheral facial palsy group were compared with the HRV test results of healthy control group who didn't have nervous disease, musculoskeletal disease, heart problem and pain for the past 6 months. Results : 1. MHRT was not significantly different between peripheral facial palsy group and healthy control group(P=0.18). 2. SDNN was not significantly different between peripheral facial palsy group and healthy control group(P=0.41). 3. RMSSD was not significantly different between peripheral facial palsy group and healthy control group(P=0.93). 4. TP was not significantly different between peripheral facial palsy group and healthy control group(P=094). 5. LF and HF were not significantly different between peripheral facial palsy group and healthy control group((P=0.34, 0.30). 6. LF/HF ratio was significantly different between peripheral facial palsy group and healthy control group(P=0.04). Conclusion : LF/HF ratio is generally used as autonomic nerve system evaluation and there was significantly statistical difference between peripheral facial palsy group and healthy control group.

• Journal of Ginseng Research
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• 제27권3호
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• pp.120-128
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• 2003

Alternative medicines such as herbal products are increasingly being used for preventive and therapeutic purposes. Ginseng is the best known and most popular herbal medicine used worldwide. In spite of some beneficial effects of ginseng on the nervous system, little scientific evidence shows at the cellular level. In the present study, I have examined the direct modulation of ginseng total saponins and individual ginsenosides on the activation of $Ca^{2+}$ channels and NMDA-gated channels in cultured rat dorsal root ganglion (DRG) and hippocampal neurons, respectively. In DRG neurons, application of ginseng total saponins suppressed high-voltage-activated $Ca^{2+}$ channel currents and ginsenoside Rg$_3$, among the 11 ginsenosides tested, produced the strongest inhibition on $Ca^{2+}$ channel currents. Occlusion experiments using selective $Ca^{2+}$ channel blockers revealed that ginsenoside Rg$_3$ could modulate L-, N-, and P/Q-type currents. In addition, ginsenoside Rg$_3$ also proved to be an active component of ginseng actions on NMDA receptors in cultured hippocampal neurons. Application of ginsenoside Rg$_3$ suppressed NMDA-induced [Ca$^{2+}$]$_{i}$ increase and -gated channels using fura-2-based digital imaging and patch-clamp techniques, respectively. These results suggest that the modulation of $Ca^{2+}$ channels and NMDA receptors by ginsenoside Rg$_3$ could be part of the pharmacological basis of ginseng actions in the peripheral and central nervous systems.ous systems.

• 융합정보논문지
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• 제10권3호
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• pp.195-199
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• 2020

본 연구는 신경계를 자극하는 카페인이 신경전도속도(nerve conduction velocity. NCV)에 미치는 영향에 대해 알아보고자 하였다. 카페인의 종류는 커피를 사용하였다. 커피는 가장 쉽게 접할 수 있고, 많은 현대인들이 좋아하는 기호 식품으로 자리잡고 있다. 커피안에 있는 특수한 성분인 카페인은 카페인은 알칼로이드계 메틸화 화합물의 하나로서 이뇨 촉진, 혈관 확장, 중추신경흥분, 골격근 강화, 기관지 확장 등의 작용이 있다. 카페인 섭취가 신경속도를 향상시켜 반응시간의 감소를 실험한 연구는 미흡한 실정이다. 이에 본 연구는 신경계를 자극하는 카페인이 신경전도속도(nerve conduction velocity. NCV)에 미치는 영향에 대해 알아보고자 하였다. 대조군 및 실험군 개별 집단 내에서의 사전, 사후 신경전도속도(nerve conduction velocity. NCV) 수치를 비교한 결과, 대조군의 경우 두 곳의 측정 구간 모두 통계적으로 유의미한 차이가 나타나지 않았으나, 실험군은 팔꿈치 위 액와 구간에서의 신경전도속도(nerve conduction velocity. NCV)가 카페인 섭취 후 유의미하게 증가한 것으로 나타났다. 카페인을 섭취함으로 인해 신경전도속도(nerve conduction velocity. NCV)가 증가하였고, 이것은 일시적으로 신경전도속도(nerve conduction velocity. NCV)를 증가시킴으로써 운동능력향상, 근력향상, 신경기능향상 등에 대해 도움이 될 것이라고 판단하였다. 본 연구를 통하여 적정량의 카페인섭취는 신경전도속도신경전도속도(nerve conduction velocity. NCV)향상에 대해 도움을 줌으로써 카페인이 말초신경계에 영향력이 있다는 것을 알게 되었다. 이러한 결과를 통해 근기능장애, 신경기능장애 환자의 치료와 진단법 개발에 도움을 줄 것이라 기대하는 바이다.

• Journal of Genetic Medicine
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• 제6권1호
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• pp.25-37
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• 2009

유전성 말초신경병은 유전운동감각신경병증, 유전운동신경병증, 유전감각신경병증으로 분류된다. 이들은 세부 아형들로 더 세분화된다. 여기서 우리는 유전성 말초신경병증의 분자적 진단과 치료적 전략에 관한 최근의 발견을 제시하고자 한다. 유전성 말초신경병증의 표현형과 연관된 유전자의 산물은 신경구조유지, 축삭의 수송, 신경신호 변환, 세포보전과 관계된 기능들에 중요하다. 유전성 말초신경병증의 분자적 기초의 수립과 관련 유전자들과 그들의 기능에 관한 연구는 이러한 신경퇴행성 질환들의 병리 생리학적 기전과 말초신경계의 기능 및 정상적 발달에 관련된 일련의 과정을 이해하는데 중요하다. 말초신경병의 병인에대한 이해와 이러한 접근은 미래에 보조적 그리고 치유적 치료들을 개발하는데 있어 유전성 말초신경병증의 환자들의 진단과 관리에 도움이 될 것이다.