3,051 Result(s)
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Article
The effect of antifungal agents on pancreatic and gastric secretion in rats
This study was designed to investigate the effects of griseofulvin, 5-fluorocytosine (5-FC), and amphotericin B on pancreatic and gastric secretion after the administration of a single large dose, or repeated ...
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Article
Magnetic resonance imaging for evaluating neurogenic dysphagia
Dysphagia due to CNS pathology usually stems from one of two patterns of disease: (1) bilateral corticobulbar tract dysfunction (“pseudobulbar palsy”) or (2) pontomedullary dysfunction (“bulbar palsy”). Comput...
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Article
Omental teratoma in an adult: A case report
We recently experienced an omental teratoma in a 34-year-old woman. Ultrasonography (US) revealed a large mass of mixed echogenicity, occupying the entire lower abdomen. Computed tomography showed an inhomogen...
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Chapter and Conference Paper
Design of moving-actuator total artificial heart (Korean Heart)
A new version of the moving-actuator electromechanical total artificial heart was designed, to improve total efficiency, durability, and fit inside the thoracic cavity. In contrast to our previous model, with ...
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Article
Computed tomographic findings of ruptured hepatic malignancy
Massive hemorrhage from ruptured hepatocellular carcinoma is uncommon. We report our experience in three cases of ruptured hepatocellular carcinoma diagnosed by computed tomography (CT). CT was useful in detec...
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Article
Detection of HCV RNA using reverse transcription and nested polymerase chain reaction in chronic non-A, non-B liver diseases in Korea
To investigate the interrelationship between the anti-HCV prevalence and the HCV RNA positivity in chronic non-A, non-B (NANB) liver diseases in Korea (n=137), we performed RT-nested PCR using 4 primers in the...
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Chapter and Conference Paper
Implantable Controller with Fault Tolerance for the Moving-Actuator Total Artificial Heart (TAH): Use of a Dual Board
An implantable dual controller with fault tolerance for a total artificial heart (TAH) was developed and evaluated by in vivo studies. The TAH controller has problems normally caused by driving inductive loads...
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Chapter and Conference Paper
Orthotopic Implantation of the Tether-Free Moving-Actuator Type Total Artificial Heart in Sheep
An electromechanical total artificial heart (TAH) was developed. Its fitting trials were performed with computer simulations, and we orthotopically implanted it in 60- to 70-kg sheep in tether-free operations....
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Chapter and Conference Paper
Automatic Control Algorithm for Cardiac Output Regulation of the Total Artificial Heart (TAH)
An automatic control algorithm for the moving-actuator type total artificial heart (TAH) was developed based on motor current waveform analysis. Instead of using relatively complicated analysis of the instanta...
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Chapter
Phototherapeutic Keratectomy for the Treatment of Persistent Epithelial Defect
Persistent epithelial defect (PED) is an important ocular surface disorder. These defects can be frustrating in chronic diseases, as in the case of inflammation, chemical burn, denervated cornea, tear deficien...
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Article
Delayed Changes in Brain Cell Membrane Function, Cytochrome aa3 and Energy Metabolism after Transient Hypoxia-Ischemia in Newborn Piglets 1713
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Article
Cellular uptake and antitumor activity of the new anthracycline analog DA-125 in human cancer cell lines
To predict the clinical usefulness of DA-125, a newly developed doxorubicin analog, we compared its antitumor activity against 20 different human cancer cell lines with that of doxorubicin using the MTT in vi...
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Chapter and Conference Paper
Further Development of the Moving-Actuator Type Total Artificial Heart
The electromechanical total artificial heart (TAH) developed at Seoul National University Hospital was verified as acceptable for human implantation through several successful animal experiments. In the last t...
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Chapter and Conference Paper
An Adaptive Cardiac Output Control for the Total Artificial Heart Using a Self-Tuning Proportional-Integral-Derivative (PID) Controller
The development of a control method for the totally implantable artificial heart (TAH) to regulate cardiac output according to the change in physiological demand was the goal of this study. The conventional pr...
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Chapter and Conference Paper
Automatic Regulation of Output of an Electrohydraulic Left Ventricular Assist Device Using the Polymer Bellows Water Pressure and Motor Current
An electrohydraulically driven left ventricular assist device (LVAD) has been developed in our laboratory. Over years of in vitro and in vivo testing, a “suction” problem has been pointed out as one of the maj...
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Article
Gating provides improved accuracy for differentiating artifacts from true lesions in equivocal fixed defects on technetium 99m tetrofosmin perfusion SPECT
Because equivocal fixed perfusion defects on single photon emission computed tomography (SPECT) often cause a diagnostic dilemma in patients with suspected coronary artery disease (CAD), we used receiver-opera...
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Article
A simple, precise and economical microdissection technique for analysis of genomic DNA from archival tissue sections
Formalin-fixed and paraffin-embedded tissues are valuable resources for retrospective analysis of the molecular changes in DNA present in tumour tissues. One common problem that precludes an accurate DNA anal...
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Article
123I-MIBG myocardial scintigraphy as a noninvasive screen for the diagnosis of coronary artery spasm
It has been suggested that the sympathetic nervous system might play an important role in the development of coronary artery spasm. However, no cardiac imaging modality has been able to demonstrate abnormal sy...
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Article
Frequency of spinocerebellar ataxia types 1, 2, 3, 6, 7 and dentatorubral pallidoluysian atrophy mutations in Korean patients with spinocerebellar ataxia
Autosomal dominant cerebellar ataxias (ADCAs) are a heterogeneous group of disorders characterized by degenerative symptoms in the cerebellum, spinal cord, and brain stem. Six different genes have been report...
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Article
Truncation of the TGF-β type II receptor gene results in insensitivity to TGF-β in human gastric cancer cells
The transforming growth factor-β (TGF-β receptor system has been implicated in the development of resistance to the growth-inhibitory effects of TGF-β. It has been reported that resistance to TGF-β correlates ...
