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Transcortical Endoscopic Surgery for Intraventricular Lesions

  • Kim, Myung-Hyun
    • Journal of Korean Neurosurgical Society
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    • v.60 no.3
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    • pp.327-334
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    • 2017
  • To review recent advances in endoscopic techniques for treating intraventricular lesions via transcortical passage. Articles in PubMed published since 2000 were searched using the keywords 'endoscopy,' 'endoscopic,' and 'neuroendoscopic.' Of these articles, those describing intraventricular lesions were reviewed. Suprasellar arachnoid cysts (SACs) can be treated with ventriculo-cystostomy (VC) or ventriculo-cysto-cisternostomy (VCC). VCC showed better results compared to VC. Procedure type, fenestration size, stent placement, and aqueductal patency may affect SAC prognosis. Colloid cysts can be managed using a transforaminal approach (TA) or a transforaminal-transchoroidal approach (TTA). However, TTA may result in better exposure compared to TA. Intraventricular cysticercosis can be cured with an endoscopic procedure alone, but if pericystic inflammation and/or ependymal reaction are seen, third ventriculostomy may be recommended. Tumor biopsies have yielded successful diagnosis rates of up to 100%, but tumor location, total specimen size, endoscope type, and vigorous coagulation on the tumor surface may affect diagnostic accuracy. An ideal indication for tumor excision is a small tumor with friable consistency and little vascularity. Tumor size, composition, and vascularity may influence a complete resection. SACs and intraventricular cysticercosis can be treated successfully using endoscopic procedures. Endoscopic procedures may represent an alternative to surgical options for colloid cyst removal. Solid tumors can be safely biopsied using endoscopic techniques, but endoscopy for tumor resection still results in considerable challenges.

Characteristics of Apple, Persimmon, and Strawberry Slices Dried with Maltodextrin

  • Kim, Min-Hee;Kim, Kwan-Su;Song, Young-Bok;Seo, Won-Joon;Song, Kyung-Bin
    • Preventive Nutrition and Food Science
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    • v.14 no.4
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    • pp.367-372
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    • 2009
  • Apple, persimmon, and strawberry slices were dehydrated after treating with 30, 50, and 80% (w/w) maltodextrin solution. The dried apple, persimmon, and strawberry slices were compared with hot air-dried and freeze-dried samples in terms of rehydration ratio, ascorbic acid, color, and sensory evaluation. The rehydration ratio of maltodextrin-treated samples was greater than that of hot-air or freeze-dried samples. Maltodextrin-treated samples had higher content of ascorbic acid than other dried samples. Additionally, maltodextrin-treated apple, persimmon, and strawberry slices had better color and sensory evaluations than those of freeze-dried or hot-air dried samples. These results suggest that, compared to other drying methods, dehydration of apple, persimmon, and strawberry slices using maltodextrin is very efficient, resulting in good rehydration capacity, minimal destruction of ascorbic acid, and good color and sensory evaluation.

The Effect of Nutrient Amendments on Biodegradability of Kerosene and Growth of Kerosene-degrading Microorganisms (영양원 변화가 Kerosene 분해율 및 분해균주 성장에 미치는 영향)

  • Chung, Kyu-Hyuck
    • Journal of Environmental Health Sciences
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    • v.25 no.3
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    • pp.7-12
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    • 1999
  • Bioremediation is the technology to harness nature's biodegradative capabilities to remove or detoxify pollutions that threaten public health as environmental contaminants. Composting may become one of major bioremediation technologies for treating soils contaminated with petroleum if the fate of contaminants during composting is better understood Most composting research of petroleum was primarily focused on removing contaminant by optimizing composting conditions. Accordingly, laboratory feasibility studies may be useful to establish a realistic basis in co-composting complex substrate such as petroleum hydrocarbons. The purpose of this study was to assess the optimal conditions of kerosene biodegradation following supplementation with nutrient amendments under simulated composting conditions. Although it increased the growth of bacterial consortium, addition of co-substrates 0.5%(w/v) such as acetic acid, citric acid, glucose, and malic acid was not beneficial. Combination of nitrogen and phosphorous source enhanced kerosene biodegradation and reduced VOC evolution. These results showed that kerosene was able to utilize in bioremediation technology.

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Current Status of Oncothermia Therapy for Lung Cancer

  • Szasz, Andras
    • Journal of Chest Surgery
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    • v.47 no.2
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    • pp.77-93
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    • 2014
  • Lung cancer is one of the most common malignant tumors, and it has the highest death rate. Oncothermia is a feasible and successful treatment for lung cancer. Results show a remarkable survival benefit for patients, with a good quality of life. The treatment has no, or in some cases mild, side-effects and could decrease the adverse effects of the complementary treatment. Applying oncothermia together with other treatment methods could increase the effects and result in better performance. A comparison of studies demonstrates a good correspondence in the data, which strengthens the reliability of the studies, and clearly shows the feasibility of the application of oncothermia to treating all kinds of pulmonary malignancies including non-small-cell and small-cell primary tumors, and all of the metastatic diseases of the pulmonary system.

Development of a Genistein-enriched Doenjang Using Corn $\beta$-Glucosidase

  • Oh, Jee-Hwan;Suh, Joo-Won;Kim, Jin-Yong;Lee, In-Hyung
    • Food Science and Biotechnology
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    • v.17 no.5
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    • pp.1021-1024
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    • 2008
  • Genistein, one of the isoflavones in doenjang, is generally known to prevent various cancers, osteoporosis, climacterium, and menopause symptoms, and has better bioavailability and healthful physiological effects than its glucoside, genistin. In both traditional and commercial doenjangs, genistein content ranged from 370 to 1,510 mg/kg, however, significant amounts of genistin also existed at the level of 190 to 350 mg/kg. After treating with corn $\beta$-glucosidase, over 84% of genistin in doenjang was converted to genistein. However, physiochemical characteristics such as pH, viscosity, 2-thiobarbituric acid (TBA) value, and color were not changed significantly after corn $\beta$-glucosidase treatments. Therefore, this study shows that the improved doenjang with the increased genistein content can be produced using corn $\beta$-glucosidase.

Chronic Pain Control of SCI Patients after Cervical Epidural Block -Case report on 2 cases- (경부 경막외 차단에 의한 척수손상 환자의 만성 통증 조절 -2예 보고-)

  • Lee, Ji-Young;Sung, Choon-Ho
    • The Korean Journal of Pain
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    • v.5 no.2
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    • pp.273-278
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    • 1992
  • With the medical progress that has given spinal cord injured(SCI) individuals greater longevity and better overall health, chronic pain is emerged as major challenge in treating this population. According to past reports, estimates of prevalance of severe/disabling chronic pain in SCI patients have ranged from 18% to 63%. In etiologies of chronic pain in SCI patients, psychic or psychogenic pain categories should be included and more recent data have demonstrated that the persistant pain is directly related to higher levels of psychosocial distress and impairment. Recently, neurophysiological classification of the SCI pain syndrome into three etiologic groups(a; mechanical pain, b; radicular pain, c; deafferentation pain) is more frequently adopted for the classification of chronic SCI pain syndrome. The deafferentation pain is most common of the pain syndromes associated with SCI. After cervical epidural anesthesia for the surgical intervention of decubitus ulcer on the hip of two SCI patients, there were much reduction of existing chronic deafferentation character pain.

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Neuraminidase Treatment Enhances Allogeneic Stimulation of Unprimed $CD8^+$ T Cells

  • Kim, Kil-Hyoun
    • BMB Reports
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    • v.30 no.6
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    • pp.385-389
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    • 1997
  • Many cell types are known to stimulate $CD8^+$ T cells in allogeneic recognition such as mixed lymphocyte reaction (MLR). Whereas dendritic cells are most potent among them. T cells are usually considered very poor in stimulating $CD8^+$ T cells although there are some tumor cells that are weakly stimulatory. T cells, as a stimulator, cultured in the presence of concanavalin A that were otherwise nonstimulatory to $CD8^+$ T cells appeared to stimulate $CD8^+$ T cells strongly when they were pretreated with neuraminidase. The enhancement of MLR by neuraminidase could be achieved by treating either the stimulators or responders with neuraminidase. Removal of negatively-charged sialic acid moieties from the cell surface, which reduced electrostatic repulsion between responders and stimulators to give better cell-cell contact might be responsible for the enhanced MLR. In addition, neuraminidase treatment also appeared to deliver activation signal to responding T cells since it could activate $CD8^+$ T cells in synergy with phorbol myristate acetate. The maximal responses were observed when both responders and stimulators were treated with neuraminidase.

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Phagocytic Roles of Glial Cells in Healthy and Diseased Brains

  • Jung, Yeon-Joo;Chung, Won-Suk
    • Biomolecules & Therapeutics
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    • v.26 no.4
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    • pp.350-357
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    • 2018
  • Glial cells are receiving much attention since they have been recognized as important regulators of many aspects of brain function and disease. Recent evidence has revealed that two different glial cells, astrocytes and microglia, control synapse elimination under normal and pathological conditions via phagocytosis. Astrocytes use the MEGF10 and MERTK phagocytic pathways, and microglia use the classical complement pathway to recognize and eliminate unwanted synapses. Notably, glial phagocytosis also contributes to the clearance of disease-specific protein aggregates, such as ${\beta}$-amyloid, huntingtin, and ${\alpha}$-synuclein. Here we reivew recent findings showing that glial cells are active regulators in brain functions through phagocytosis and that changes in glial phagocytosis contribute to the pathogenesis of various neurodegenerative diseases. A better understanding of the cellular and molecular mechanisms of glial phagocytosis in healthy and diseased brains will greatly improve our current approach in treating these diseases.

A Review of Electroacupuncture on Patients with Insomnia in Chinese Medicine (불면에 대한 전침치료 동향 (1994-2009년 중국 임상 논문 중심으로))

  • Sung, Won-Young;Kim, Lak-Hyung
    • Journal of Oriental Neuropsychiatry
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    • v.20 no.4
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    • pp.91-101
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    • 2009
  • Objectives : The study was designed to evaluate the effect of electroacupuncture on patients with insomnia in China. Methods : We performed systematic review of case-control studies of electroacupuncture on patients with insomnia published from 1994 to 2009 in CNKI(中國知識基礎施設工程 http://www.cnki.net). Results : 17 studies were selected. The electroacupuncture points frequently used were Sinmun(神門), Sameumgy(三陰交), Baekhoe(百會), Sasinchong(四神聰), etc. G6805 electroacupuncture instrument were mostly used in those studies and the treating methods of electroacupuncture were various according to each study. Combination of both Electroacupuncture and other therapy reported better results than simple therapy such as simple electroacupuncture or acupuncture, western medicine, herbal medicine, auricular therapy. Conclusions : There have been many studies of electroacupuncture on patients with insomnia in China and these studies can applied to the clinical practices in Korea.

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RNA Interference as a Plausible Anticancer Therapeutic Tool

  • Ramachandran, Puthucode Venkatakrishnan;Ignacimuthu, Savarimuthu
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.6
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    • pp.2445-2452
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    • 2012
  • RNA interference has created a breakthrough in gene silencing technology and there is now much debate on the successful usage of RNAi based methods in treating a number of debilitating diseases. Cancer is often regarded as a result of mutations in genomic DNA resulting in faulty gene expression. The occurrence of cancer can also be influenced by epigenetic irregularities in the chromatin structure which leads to alterations and mutations in DNA resulting in cancer cell formation. A number of therapeutic approaches have been put forth to treat cancer. Anti cancer therapy often involves chemotherapy targeting all the cells in common, whereby both cancer cells as well as normal cells get affected. Hence RNAi technology has potential to be a better therapeutic agent as it is possible to deactivate molecular targets like specific mutant genes. This review highlights the successful use of RNAi inducers against different types of cancer, thereby paving the way for specific therapeutic medicines.