Tae Hwan Park

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Langerhans cell histiocytosis (LCH) is a rare idiopathic benign disease characterized by proliferation of Langerhans cells, most commonly in the skull. In extremely rare cases, the tumor can occur in the sternum. A 4-year-old girl presented to our institution with a firm, nontender mass in her anterior chest that had indolently enlarged to approximately 2(More)
Catheter guided ablation of cardiac arrhythmias is an effective and safe procedure for the treatment of most supraventricular and selected ventricular tachycardias. Because catheter manipulation is fluoroscopically guided, there is risk of radiation induced injury, especially during prolonged procedures. The Food and Drug Administration has recently issued(More)
A feb-batch operation for the production of bovine somatotropin (bST) under the control of tryptophan promoter in Escherichia coli was investigated. The plasmid used contains a two-cistron system and altered codon usage for higher expression of bST. Specific growth rate is an important parameter in the fermentation, because it affects the production of(More)
OBJECTIVE The aims were (1) to determine whether thrombin, which is increased in the presence of coronary thrombosis, can directly stimulate the production of lysophosphatidylcholine, which has arrhythmogenic properties, in ventricular myocytes; (2) whether the effect is dependent upon extracellular [Ca2+]; and (3) whether it is mediated directly through(More)
Dermatofibrosarcoma protuberans is an uncommon locally aggressive malignant neoplasm that most frequently appears in the trunk, followed by the extremities, head, and neck. But occurrence in the breast is extremely rare. We present a case of a 28-year-old woman, who had a history of trauma 5 years previously and excision 1 year before presentation at our(More)
Recent evidence indicates that factors involved in the activation of the coagulation system eliciting an intracoronary thrombus may contribute importantly to arrhythmogenesis during acute myocardial ischemia. In the present study, the influence of the thrombin receptor activating peptide, SFLLRNPNDKYEPF (SFLL), on intracellular Na+ ([Na+]i) and tissue(More)
BACKGROUND The physiopathogenesis of keloid scars is not well understood. This report aims to present the authors' experiences with facial keloids, to evaluate their treatment outcomes via a prospective study, and to identify risk factors involved in facial keloid recurrence. METHODS Patients with facial keloids were treated with surgical excision(More)
Keloid formation is one of the most challenging clinical problems in wound healing. With increasing frequency of open heart surgery, chest keloid formations are not infrequent in the clinical practice. The numerous treatment methods including surgical excision, intralesional steroid injection, radiation therapy, laser therapy, silicone gel sheeting, and(More)
We studied cytokine production in 15 patients with chronic fatigue syndrome (CFS) and 23 controls. CFS patients' peripheral blood mononuclear cells were cultured with lipopolysaccharide or phytohemagglutinin. Enzymatic immunoassay indicated cytokine concentration in culture supernatants. CFS patients showed significantly lower mRNA levels and transforming(More)
Polymethylmethacrylate (PMMA) filler is widely used for the correction of wrinkles because of its relative long-lasting cosmetic improvements and the rarity of reported complications. However, early and delayed complications, ranging from minor to severe, can occur following PMMA filler injection. We evaluated and treated 13 cases of PMMA filler-related(More)