• Title/Summary/Keyword: tissue fluid

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Diagnostic Assay of Toxic Zinc in an Ex Vivo Cell Using Voltammetry

  • Ly, Suw-Young;Yoo, Hai-Soo
    • Toxicological Research
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    • v.28 no.2
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    • pp.123-127
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    • 2012
  • Voltammetric detection of the toxic Zn ion was investigated using a fluorine-doped graphite pencil electrode (FPE). It is notable from the study that pencils were used as reference and working electrodes. In all the experiments, a clean seawater electrolyte solution was used to yield good results. The analytical working range was attained to 10 ${\mu}gL^{-1}$. The optimized voltammetric condition was examined to maximize the effect of the detection of trace Zn. The developed sensor was applied to an earthworm's tissue cell. It was found that the methods can be applicable to in vivo fluid or agriculture soil and plant science.

Surgical Resection of Intralobal Pulmonary Sequestration - A Case Report - (폐엽내형 폐격리증 수술치험 1례)

  • 박형주
    • Journal of Chest Surgery
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    • v.23 no.2
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    • pp.357-361
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    • 1990
  • The pulmonary sequestration is rare congenital pulmonary disease with nonfunctioning lung tissue supplied by aberrant arteries arising from systemic arteries-thoracic aorta, subclavian artery, innominate artery, internal mammary artery, etc. In our country, only 23 cases were reported previously and the majority was intralobar pulmonary sequestration except 2 cases. The patient was 17 year-old man and admitted due to intermittent cough, productive sputum and fever for 8 years. On simple chest P \ulcornerA view, multiple cysts with air-fluid levels were located at left lower lobe area. Aortogram revealed two aberrant arteries arising from thoracic aorta just above the diaphragm. On the operative field, the arteries were 0.7 and 0.3 cm in diameter. Left lower lobectomy was done with ligation of aberrant arteries. The patient was recovered and discharged uneventfully.

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Effects of Gamcho on Cytokine Production in Asthma Model Mouse (감초가 천식모델 생쥐의 혈청내 Cytokine에 미치는 효과)

  • Kwak Sang Kyo;Park Yang Chun
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.18 no.2
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    • pp.463-467
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    • 2004
  • This experiment was designed to investigate the effect of Gamcho(Glycyrrhiza uralensis Fisch, GLU) on Antiallergy in asthma. We measured IL-4, IL-5, UL-13, IgE in bronchoalveolar lavage fluid of ovalbumin induced asthmatic mouse and observed murine lung tissue. The results were obtained as follows: 1. GLU decreased the proliferation of IL-4, IL-5, IL-13, IgE significantly. According to the above results, it is suggested that GLU extract might be useful applied for prevention and treatment of allergic asthma.

Diagnostic Assay of Phenol Ions in Human Tissue

  • Ly, Suw-Young;Lee, Jin-Hui;Yoo, So-Dam;Hong, Ki-Won;Lee, Kyu-Jung
    • Journal of the Korean Applied Science and Technology
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    • v.28 no.4
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    • pp.502-507
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    • 2011
  • A voltammetric assay of phenol ions was investigated using three electrode systems of graphite pencil working, reference and counter electrodes. Under optimum analytical parameters, square wave stripping working ranges were attained at a mili range of 10~80 mg/L and a micro range of 20~90 ug/L using seawater electrolyte. The developed sensor was applied to tap water and the human body system of a smoker. It was found that the methods can be applied to in vivo fluid or medicinal diagnosis.

Histological changes in brain tissue of rat induced neuronal excitotoxicity by NMDA(N-methyl-D-asparate) (NMDA(N-methyl-D-asparate)의 투여에 의해 유발된 신경 과흥분상태에서의 쥐의 뇌조직 변화)

  • Song, Jae-chan
    • Korean Journal of Veterinary Research
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    • v.38 no.2
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    • pp.290-296
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    • 1998
  • Histological changes was investigated in the 4 weeks old rat brain using NMDA (N-methyl-D-asparate) which is capable of mediating excitotoxic events. The changes were occured when the injected NMDA solved in PBS was over $1.0{\mu}g/g$(about 90nM). The necrosis of Purkinje cells in cerebellum and the increasement of coloidal plexus cell number were prevalent. The Purkinje cell number of necrosis were increased according to increasement of amount of injected NMDA. In spite of increasement of degenerated Purkinje cell number, differentiation of new Purkinje cell was not identified because total number of Purkinje cell was not changed. The change of cell number was observed in coloidal plexus cell rather than degeneration of cell. About 5 time increasement was occured. This change may cause increasement of cerebrospinal fluid and the makes mophorogy of brain more round than nomal.

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Forensic DNA methylation profiling from evidence material for investigative leads

  • Lee, Hwan Young;Lee, Soong Deok;Shin, Kyoung-Jin
    • BMB Reports
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    • v.49 no.7
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    • pp.359-369
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    • 2016
  • DNA methylation is emerging as an attractive marker providing investigative leads to solve crimes in forensic genetics. The identification of body fluids that utilizes tissue-specific DNA methylation can contribute to solving crimes by predicting activity related to the evidence material. The age estimation based on DNA methylation is expected to reduce the number of potential suspects, when the DNA profile from the evidence does not match with any known person, including those stored in the forensic database. Moreover, the variation in DNA implicates environmental exposure, such as cigarette smoking and alcohol consumption, thereby suggesting the possibility to be used as a marker for predicting the lifestyle of potential suspect. In this review, we describe recent advances in our understanding of DNA methylation variations and the utility of DNA methylation as a forensic marker for advanced investigative leads from evidence materials.

Changes in The Pressure-Flow Control Characteristics of Shunt Valves Under Brain Pressure Pulsation (뇌압 펄스하에서 션트밸브의 압력-유량제어 특성곡선의 변화)

  • Hong Yisong;Lee Chong-Sun;Jang Jongyun
    • Proceedings of the KSME Conference
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    • 2002.08a
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    • pp.699-702
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    • 2002
  • Shunt valves implanted in the subcutaneous tissue of brain to treat patient with hydrocephalus were numerically simulated to investigate influence of pressure pulsation on their flow control characteristics. Shunt valves are subjected to pressure variation since ventricles enclosing the brain are under pressure pulsation rather than uniform pressure due to blood pressure variation. We modeled flow orifice through shunt valve and imposed pulsating pressure and valve diaphragm movement to compute flow through the valve. The results of our study indicated that flow rate increased by $40{\%}$ by introducing pressure pulsation and diaphragm movement on the shunt valve. Our results demonstrate the pressure-flow control characteristics of shunt valves unplanted above human brain may be quite different from the characteristics obtained by syringe pump test with uniform pressure and no diaphragm movement.

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Extravasation Injury and Pressure Sore in Brain Damage Patient with Stiffness of the Limbs

  • Jung, Kyu Hwa;Choi, Hwan Jun;Kim, Jun Hyuk
    • Archives of Reconstructive Microsurgery
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    • v.23 no.1
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    • pp.36-39
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    • 2014
  • Extravasation injury refers to leakage of corrosive liquids from veins, resulting in tissue damage. The authors report on a case of extravasation injury to the left hand after administration of fluid to the antecubital area in a patient with brain damage. In order to minimize the effects of extravasation injury, rapid diagnosis and management are needed. In patients with stiffness, pressure sores can develop requiring more careful management by the medical staff.

Radiographic Diagnosis of Canine Gastric Dilatation-volvulus Syndrome (개에서 발생한 위확장-염전증후군의 방사선학적 진단)

  • Kim Sang-Ki;Lee Chai-Yong;Oh Ki-Seok
    • Journal of Veterinary Clinics
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    • v.11 no.1
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    • pp.383-387
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    • 1994
  • The purpose of this report is to describe the radiographic patterns of canine gastric dilatation-volvulus syndrome derived from a case. Radiographs showed the presence of a large amount of gas, fluid and ingesta within the stomach. The gas-filled pyloric antrum was present in the left cranial abdomen in the ventrodorsal view, and located dorsal and slightly cranial to the gas-filled fundus of the stomach in the right lateral recumbent and standing lateral view. On the right lateral recumbent view, the gas-filled stomach was compartmentalized by a soft-tissue dense band caused by the pyloric antral wall folding back and contacting the fundic wall. It was thought that the gastric volvulus in this case occurred In a clock. wise direction by radiographic findings.

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Network-Based Protein Biomarker Discovery Platforms

  • Kim, Minhyung;Hwang, Daehee
    • Genomics & Informatics
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    • v.14 no.1
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    • pp.2-11
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    • 2016
  • The advances in mass spectrometry-based proteomics technologies have enabled the generation of global proteome data from tissue or body fluid samples collected from a broad spectrum of human diseases. Comparative proteomic analysis of global proteome data identifies and prioritizes the proteins showing altered abundances, called differentially expressed proteins (DEPs), in disease samples, compared to control samples. Protein biomarker candidates that can serve as indicators of disease states are then selected as key molecules among these proteins. Recently, it has been addressed that cellular pathways can provide better indications of disease states than individual molecules and also network analysis of the DEPs enables effective identification of cellular pathways altered in disease conditions and key molecules representing the altered cellular pathways. Accordingly, a number of network-based approaches to identify disease-related pathways and representative molecules of such pathways have been developed. In this review, we summarize analytical platforms for network-based protein biomarker discovery and key components in the platforms.