• Title/Summary/Keyword: brain diseases

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The cellular basis of dendrite pathology in neurodegenerative diseases

  • Kweon, Jung Hyun;Kim, Sunhong;Lee, Sung Bae
    • BMB Reports
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    • v.50 no.1
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    • pp.5-11
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    • 2017
  • One of the characteristics of the neurons that distinguishes them from other cells is their complex and polarized structure consisting of dendrites, cell body, and axon. The complexity and diversity of dendrites are particularly well recognized, and accumulating evidences suggest that the alterations in the dendrite structure are associated with many neurodegenerative diseases. Given the importance of the proper dendritic structures for neuronal functions, the dendrite pathology appears to have crucial contribution to the pathogenesis of neurodegenerative diseases. Nonetheless, the cellular and molecular basis of dendritic changes in the neurodegenerative diseases remains largely elusive. Previous studies in normal condition have revealed that several cellular components, such as local cytoskeletal structures and organelles located locally in dendrites, play crucial roles in dendrite growth. By reviewing what has been unveiled to date regarding dendrite growth in terms of these local cellular components, we aim to provide an insight to categorize the potential cellular basis that can be applied to the dendrite pathology manifested in many neurodegenerative diseases.

Panax ginseng: a candidate herbal medicine for autoimmune disease

  • Lee, Joon-Il;Park, Kyoung Sun;Cho, Ik-Hyun
    • Journal of Ginseng Research
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    • v.43 no.3
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    • pp.342-348
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    • 2019
  • Panax ginseng Meyer (P. ginseng; Korean ginseng) is well known for its medicinal properties. It can alleviate pathological symptoms, promote health, and prevent potential diseases via its anti-inflammatory, antioxidant, homeostatic, and other positive effects on biological metabolism. Although many studies have determined effects of P. ginseng on various diseases, such as cardiovascular, neurological, and immunological diseases, little is known about the effect of P. ginseng on autoimmune diseases. Here, we review a few reports about effects of P. ginseng on autoimmune diseases (e.g., multiple sclerosis, Crohn's disease, ulcerative colitis, atopic dermatitis, and rheumatoid arthritis) and suggest the possibility of P. ginseng as a candidate herbal medicine to prevent and treat autoimmune diseases as well as the need to study it.

A Study of the Recent Diseases in Korean Pediatrics and Adolescent Patients Treated with Oriental Medicine (최근 국내 한방 진료를 받은 소아·청소년 환자의 질환 진단명 분석)

  • Kim, Kyeong Ri;Lee, Jin Hwa
    • The Journal of Pediatrics of Korean Medicine
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    • v.32 no.1
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    • pp.54-74
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    • 2018
  • Objectives The purpose of this study is to investigate recent trend of diseases in Korean pediatrics and adolescent patients treated with oriental medicine. Methods Using data from the Korean statistical information service and healthcare bigdata hub, top 500 diseases pediatrics and adolescents that were treated with oriental medicine from 2012 to 2016 in admission and outpatient department was collected. Results From the inpatient study, majority of the subjects were between 15 to 19 years old (62.74%), followed by 10 to 14 years old, 5 to 9 years old and under 5 years old. In the outpatient department study, majority was 15 to 19 years old (36.51%), followed by 10 to 14 years old, under 5 years old, 5 to 9 years old. In systemic division of admission part, the most common disease was musculoskeletal related which was 72.32%, followed by brain, nerve, respiratory, dermatology and digestive related diseases. In systemic division of outpatient department, respiratory disease was the most common (41.81%), followed by digestive, dermatology, brain and nerve diseases. For under 5 years old patient group, respiratory disease was the most common, 29.86%, followed by dermatology, musculoskeletal, digestive related diseases. For 5 to 19 years old group of patients, musculoskeletal disease was most common. For the 5 to 14 years old patient group, respiratory related disease was the most common followed by dermatology and digestive diseases. For 15 to 19 years old patient group, digestive disease was the most common followed by respiratory and dermatology related diseases. For under 5 to 9 years old outpatient group, respiratory disease was the most common, and for under 5-year-old group, digestive, growth development, and dermatology disease were common. For the 5 to 9 years old group of patients, musculoskeletal related disease was the most common followed by digestive and dermatology related diseases. For the 10 to 19 years old patient group, musculoskeletal was the most common. For the 10 to 14 years old patient group, respiratory related disease was the most common followed by digestive, dermatology disease. For the 15 to 19 years old patient group, digestive related disease was the most common followed by respiratory, dermatology diseases. Musculoskeletal disease increased every year, in both inpatient and outpatient. Respiratory, brain, nerve, digestive related diseases were generally decreased. In outpatient, respiratory diseases were increased every year but brain, nerve, digestive related diseases were generally decreased. Conclusions More studies about the oriental medicine in chronic disease, such as allergy, metabolic syndrome, in Korean pediatrics and adolescents are needed.

Clinical Benefit of Computerized Cognitive Therapy in Patients with Brain Disease : A Systematic Review and Meta-Analysis (뇌질환 환자에서 전산화 인지치료의 임상적 유용성 : 체계적 고찰 및 메타분석)

  • Song, Seungil;Park, Sowon
    • Journal of The Korean Society of Integrative Medicine
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    • v.8 no.4
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    • pp.277-289
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    • 2020
  • Purpose : This study aims to confirm the clinical usefulness of computerized cognitive therapy program for patients with brain diseases in Korea and to present basic data that can confirm the effectiveness of computerized cognitive therapy program to experts related to rehabilitation in the future. Methods : A systematic review and meta-analysis research method was used to confirm the clinical effectiveness of computerized cognitive therapy applied to patients with brain diseases in Korea. Based on the national institute of health and medical colleges association (NECA) systematic literature manual and preferred reporting items for systematic reviews and meta-analysis (PRISMA) guidelines for conducting research through systematic review and meta-analysis methods. Systematic review was PICOST-SD was used to research and select papers. For meta-analysis, the data was input and analyzed separately by literature result using the revman manager 5.3 program and the results were presented visually through tables and forest, funnel plot figure. Results : As a result of comprehensive analysis of the contents of the finally selected literature, it as found that studies on stroke and dementia were mainly conducted. In addition, through the evaluation of the quality of the literature, most of the existing computerized cognitive therapy studies were identified as high-quality studies, but the results were insufficient for randomization and blinding. And through meta-analysis, the clinical effectiveness of computerized cognitive therapy on cognitive function, activities of daily living, and visual perception function of patients with brain disease was found. Conclusion : The research literature that applied computerized cognitive therapy to brain disease subjects was comprehensively analyzed and identified. It is thought that this could be used as basic data on the characteristics of cognitive therapy that should be applied to patients with brain diseases in the future and the usefulness of computerized cognitive therapy program in actual clinical practice.

An inhibitory alternative splice isoform of Toll-like receptor 3 is induced by type I interferons in human astrocyte cell lines

  • Seo, Jin-Won;Yang, Eun-Jeong;Kim, Se Hoon;Choi, In-Hong
    • BMB Reports
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    • v.48 no.12
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    • pp.696-701
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    • 2015
  • Toll-like receptor 3 (TLR3) recognizes viral double-stranded RNA. It stimulates pro-inflammatory cytokine and interferon production. Here we reported the expression of a novel isoform of TLR3 in human astrocyte cell lines whose message is generated by alternative splicing. The isoform represents the N-terminus of the protein. It lacks many of the leucine-rich repeat domains, the transmembrane domain, and the intracellular Toll/interleukin-1 receptor domain of TLR3. Type I interferons (interferon-α and interferon-β) induced the expression of this isoform. Exogenous overexpression of this isoform inhibited interferon regulatory factor 3, signal transducers and activators of transcription 1, and Inhibitor of kappa B α signaling following stimulation. This isoform of TLR3 also inhibited the production of chemokine interferon-γ-inducible protein 10. Our study clearly demonstrated that the expression of this isoform of TLR3 was a negative regulator of signaling pathways and that it was inducible by type I interferons. We also found that this isoform could modulate inflammation in the brain.

Influence of Daejowhan-gamibang on Antioxidative Effects and Apoptosis Induction in Neuronal Cells

  • Lee Young Chan;Choi Ho Seung;Lee Jun;Jeon Byung Hun
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.18 no.6
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    • pp.1881-1891
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    • 2004
  • Daejowhan-gamibang(DJG) is used to prevention and treatment of cerebrovascular disease, heart disease, dementia, hyperlipdemia circulatory disturbance. Korean traditional herbal prescriptions and herb medicines in neuronal cells, which have been used for the treatment of stroke and brain diseases in Korean traditional medicine were screened to study the antioxidant effects and its mechanism. Daejowhan-gamibang water extract(DJGWE) was tested on their antioxidant activity using radical scavenging effects against ABTS. It showed significant antioxidant capacities at 50㎍ concentration. The antioxidant activity of DJGWE was determined in the different concentration (10㎍, 50 ㎍, and 100㎍). At the same time, the antiperoxidation effects was determined. Lipid peroxidation in brain homogenates induced by NADPH and ADP-Fe/sup 2+/ was significantly inhibited by DJGWE in vitro. DJGWE showed a potent antioxidant and antiperoxidative activity, further investigation, in vitro and in vivo, will be needed for the confirm of possibility as an antioxidant therapeutic agents and their optimal treatment of brain diseases in human. In searching the mechanism of antioxidant effects of DJGWE, it showed the inhibition of activity of JNK, p38, ERK and caspase 3 induced by hypoxia. So, DJGWE should be surveyed for the use of the potential therapeutic prescription for stroke and brain degenerative diseases such as pakinson's disease, dementia.

Metronidazole Induced Encephalopathy in a Patient with Brain Abscess

  • Bahn, Yoo-Chang;Kim, Eun-Young;Park, Chon-Goon;Park, Hyung-Chun
    • Journal of Korean Neurosurgical Society
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    • v.48 no.3
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    • pp.301-304
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    • 2010
  • Metronidazole is commonly used for brain abscess but is not well known for its neurotoxic complications. Metronidazole-induced encephalopathy (MIEP) is toxic encephalopathy associated with the use of metronidazole. We experienced a case of brain abscess which developed reversible severe MIEP during treatment period. Although MIEP occurs in typical locations, it is not easy to differentiate from other conditions such as cerebral infarction, demyelinating diseases and metabolic diseases. Neurosurgeons should be aware that severe MIEP can occur during the use of metronidazole though it is not common.

Diamox-enhanced Brain SPECT in Cerebrovascular Diseases (뇌혈관질환에서 다이아목스부하 뇌 단일광자방출 전산화단층촬영)

  • Choi, Yun-Young
    • Nuclear Medicine and Molecular Imaging
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    • v.41 no.2
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    • pp.85-90
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    • 2007
  • Acute event in cerebrovascular disease is the second most common cause of death in Korea following cancer, and it can also cause serious neurologic deficits. Understanding of perfusion status is important for clinical applications in management of patients with cerebrovascular diseases, and then the attacks of ischemic neurologic symptoms and the risk of acute events can be reduced. Therefore, the normal vascular anatomy of brain, various clinical applications of acetazolamide-enhanced brain perfusion SPECT, including meaning and role of assessment of vascular reserve in carotid stenosis before procedure, in pediatric Moyamoya disease before and after operation, in prediction of development of hyperperfusion syndrome before procedure, and in prediction of vasospasm and of prognosis in subarachnoid hemorrahge were reviewed in this paper.

The 14-3-3 Gene Function of Cryptococcus neoformans Is Required for its Growth and Virulence

  • Li, Jingbo;Chang, Yun C.;Wu, Chun-Hua;Liu, Jennifer;Kwon-Chung, Kyung J.;Huang, Sheng-He;Shimada, Hiro;Fante, Rob;Fu, Xiaowei;Jong, Ambrose
    • Journal of Microbiology and Biotechnology
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    • v.26 no.5
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    • pp.918-927
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    • 2016
  • Cryptococcus neoformans is a life-threatening pathogenic yeast that causes devastating meningoencephalitis. The mechanism of cryptococcal brain invasion is largely unknown, and recent studies suggest that its extracellular microvesicles may be involved in the invasion process. The 14-3-3 protein is abundant in the extracellular microvesicles of C. neoformans, and the 14-3-3-GFP fusion has been used as the microvesicle's marker. However, the physiological role of 14-3-3 has not been explored. In this report, we have found that C. neoformans contains a single 14-3-3 gene that apparently is an essential gene. To explore the functions of 14-3-3, we substituted the promoter region of the 14-3-3 with the copper-controllable promoter CTR4. The CTR4 regulatory strain showed an enlarged cell size, drastic changes in morphology, and a decrease in the thickness of the capsule under copper-enriched conditions. Furthermore, the mutant cells produced a lower amount of total proteins in their extracellular microvesicles and reduced adhesion to human brain microvascular endothelial cells in vitro. Proteomic analyses of the protein components under 14-3-3-overexpressed and -suppressed conditions revealed that the 14-3-3 function(s) might be associated with the microvesicle biogenesis. Our results support that 14-3-3 has diverse pertinent roles in both physiology and pathogenesis in C. neoformans. Its gene functions are closely relevant to the pathogenesis of this fungus.

A Case of Miliary Brain Metastasis of Lung Cancer Mimicking Neurocysticercosis (뇌낭미충증과 감별이 어려웠던 폐암의 속립성 뇌전이 1예)

  • Lee, Ho-Jun;Oh, In-Jae;Park, Sang-Woo;Ban, Hee-Jung;Kim, Young-Chul;Kim, Soo-Ok
    • Tuberculosis and Respiratory Diseases
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    • v.72 no.2
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    • pp.182-186
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    • 2012
  • Miliary brain metastasis from the lung is uncommon and has a poor therapeutic response. We report a case of pulmonary adenocarcinoma combined with multiple brain cystic lesions that were initially misdiagnosed as neurocysticercosis. A 53-year-old male who never smoked was admitted to our hospital with complaints of agitation and cognitive impairment. Brain magnetic resonance imaging showed innumerable, small nodular lesions with a central, low signal intensity in whole brain parenchyma. His symptoms were not improved by the empirical praziquantel medication for disseminated neurocysticercosis. After a transbronchial biopsy from the right middle lobe, we could diagnose the primary lung adenocarcinoma with a single nucleotide polymorphism in the epidermal growth factor receptor exon 20 at codon 787 (Q787Q). His neurologic symptoms and imaging findings have been gradually improving with a first-line Gefitinib treatment for five months. We recommend a more active diagnostic approach including biopsy in case of atypical imaging findings.