• Journal of Yeungnam Medical Science
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• v.14 no.2
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• pp.443-450
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• 1997

전신적인 침범없이 후두에만 국한되는 악성 림프종은 매우 드믄 예로서 일반적으로 두경부에만 국한된 방사선 치료로 근치 가능하다. 그러나 때때로 급성 호흡 곤란을 초래하여 응급 기관 절개와 복합 항암제를 투여해야 되는 경우를 간혹 경험하게 된다. 본 증례는 수 개월간 지속되어온 애성과 최근에 갑자기 심해진 호흡 곤란으로 급성 후두염이란 임상 진단명으로 보존적인 치료를 하였으나 증상이 호전되지 않아서 후두조직 검사 결과에서 비 호즈킨 림프종으로 확진되어 6회의 복합 항암제를 투여한 다음 남아있는 병변에 대한 45 Gy의 외부 방사선 치료후 촬영한 전산화 단층 촬영에서 완전 관해를 보였으며 진단후 10개월이 지난 현재 무병 상태를 보이는 환자를 경험하였기에 간단한 문헌 고찰과 함께 보고한다.

• Asian Pacific Journal of Cancer Prevention
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• v.15 no.22
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• pp.9603-9606
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• 2014

Background: Endometrial cancer is the fourth most common cancer among women in developed countries. Patients with endometrial cancer may benefit from systemic chemotherapy alone or in combination with targeted therapies if the disease is clinically diagnosed prior to spread and metastasis to other organs. The aim of this study was to evaluate the prognostic role of p53 polymorphism and its correlation with tumor grade in human uterine endometrial carcinomas. Materials and Methods: A total of 75 patients with endometrial carcinomas were studied for possible mutations in exon 4 of the p53 gene using polymerase chain reaction and restricting fragment length polymorphism techniques and sequencing. Results: In recent study, The rate of homozygote genotype of pro/pro or Arg/Arg in high grade group was higher than in comparison with low grade one. In addition samples that were undigested in RFLP, showed mutation in exone 4. Conclusions: Our findings showed that high grade endometrial carcinomas are highly associated with TP53 polymorphisms in comparison with low grades.

• Radiation Oncology Journal
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• v.32 no.3
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• pp.103-115
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• 2014

To summarize current knowledge regarding mechanisms of radiation-induced normal tissue injury and medical countermeasures available to reduce its severity. Advances in radiation delivery using megavoltage and intensity-modulated radiation therapy have permitted delivery of higher doses of radiation to well-defined tumor target tissues. Injury to critical normal tissues and organs, however, poses substantial risks in the curative treatment of cancers, especially when radiation is administered in combination with chemotherapy. The principal pathogenesis is initiated by depletion of tissue stem cells and progenitor cells and damage to vascular endothelial microvessels. Emerging concepts of radiation-induced normal tissue toxicity suggest that the recovery and repopulation of stromal stem cells remain chronically impaired by long-lived free radicals, reactive oxygen species, and pro-inflammatory cytokines/chemokines resulting in progressive damage after radiation exposure. Better understanding the mechanisms mediating interactions among excessive generation of reactive oxygen species, production of pro-inflammatory cytokines and activated macrophages, and role of bone marrow-derived progenitor and stem cells may provide novel insight on the pathogenesis of radiation-induced injury of tissues. Further understanding the molecular signaling pathways of cytokines and chemokines would reveal novel targets for protecting or mitigating radiation injury of tissues and organs.

• Asian Pacific Journal of Cancer Prevention
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• v.16 no.18
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• pp.8053-8058
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• 2016

Metformin is known as a hypoglycaemic agent that regulates glucose homeostasis by inhibiting liver glucose production and increasing muscle glucose uptake. Colorectal cancer (CRC) is one of the most common cancers worldwide, with about a million new cases diagnosed each year. The risk factors for CRC include advanced age, smoking, black race, obesity, low fibre diet, insulin resistance, and the metabolic syndrome. We have searched Medline for the metabolic syndrome and its relation to CRC, and metformin as a potential treatment of colorectal cancer. Administration of metformin alone or in combination with chemotherapy has been shown to suppress CRC. The mechanism that explains how insulin resistance is associated with CRC is complex and not fully understood. In this review we have summarised studies which showed an association with the metabolic syndrome as well as studies which tackled metformin as a potential treatment of CRC. In addition, we have also provided a summary of how metformin at the cellular level can induce changes that suppress the activity of cancer cells.

• BMB Reports
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• v.36 no.2
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• pp.173-178
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• 2003

Malignant melanoma is one of the most rapidly increasing cancer types, and patients with metastatic disease have a very poor prognosis. Detection of metastatic melanoma cells in circulation may aid the clinician in assessing tumor progression, metastatic potential, and response to therapy. Tyrosinase is a key enzyme in melanine biosynthesis. The gene is actively expressed in melanocytes and melanoma cells. Melan A is a differentiation antigen that is expressed in melanocytes. The presence of these molecules in blood is considered a marker for circulating melanoma cells. In this study, we analyzed the usefulness of this marker combination I evaluating the response to therapy in the blood of 30 patients with malignant melanoma. Circulating cells were detected by a reverse-transcriptase-polymerase-chain reaction. The tyrosinase expression was observed in 9 (30%) patients and Melan A in 19 (63.3%) patients before therapy. Following treatment, the tyrosinase mRNA was detected in only one patient, while Melan A transcripts were still present in 14 patients. We suggest that this molecular assay can identify circulating melanoma cells that express melanoma-associated antigens and may provide an early indication of therapy effectiveness.

• Asian Pacific Journal of Cancer Prevention
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• v.16 no.17
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• pp.7449-7452
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• 2015

Objective: Endometrial cancer is the fourth most common cancer among women in developed countries. Affected patients may benefit from systemic chemotherapy, alone or in combination with targeted therapies if the disease is clinically diagnosed prior to expansion and metastasis to other organs. The aim of this study was to evaluate the prognostic role of c-kit mutations and comparision with tumor type and grade in human uterine endometrial carcinomas. Materials and Methods: Seventy five patients with endometrial carcinoma and seventy five normal controls were studied for possible mutations in exon 17 of the c-kit gene using single strand conformational polymorphisms and sequencing. Results: c-kit mutation in exon 17 appeared to be significantly different between endometrial carcinoma and normal endometrium. The pattern and frequency of the mutations was also shown to be different between tumors from different stages.

• Childhood Kidney Diseases
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• v.6 no.2
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• pp.237-242
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• 2002

Hemolytic Uremic Syndrome (HUS) is the most common cause of acute renal failure in children and is comprised of the combination of hemolytic anemia, thrombocytopenia, and acute renal failure. Atypical HUS, rare in childhood, has worse prognosis than that of typical HUS and is associated with chemotherapy drug, other bacterial (especially Streptococcus pneumoniae) or viral infections, and so on. We report a case of HUS caused by pneumococcal infection in 4-year-old boy. While he was admitted with pneumonia and pleural effusion, pneumococcal infection could be revealed. Although HUS progressed rapidly, he immediately received 3-time hemodialysis and recovered completely after two weeks.

• Radiation Oncology Journal
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• v.4 no.1
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• pp.63-66
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• 1986

The malignant small round cell tumor of the thoracopulmonary region was described by Askin in 1979 and called as Askin Tumor. The Askin tumor is a rare, arises from the soft tissues of the chest wall or peripheral lung which is predominantly in younger generation. Clinical and pathologic appearance were very similar to Ewing's sarcoma and rhabdomyosarcoma but when examined it by electron microscopy, there was some different in morphology. The tumor tended to recur locally and did not seem to disseminated widely but the median survival was only 8 months.

• Journal of Veterinary Clinics
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• v.29 no.4
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• pp.328-330
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• 2012

A 13-year-old, neutered male, chihuahua was referred to the Veterinary Medical Teaching Hospital of Chungnam National University with a history of a bilateral mandibular mass, intermittent vomiting, cough, and left sided staggering starting ten days prior. Clinical examination along with radiography, neurologic examination and magnetic resonance imaging (MRI) demonstrated a well-circumscribed and solitary mass in the brain stem. The dura mater was thickened with marked linear enhancement after contrast administration. Based on diagnostic image analysis and histopathologic examination, this case was diagnosed as intracranial meningioma. The patient's symptoms were controlled for 18 months by a combination therapy of prednisolone and lomustine (CCNU), and then he died of at home.

• Asian Pacific Journal of Cancer Prevention
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• v.14 no.8
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• pp.4801-4804
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• 2013

Purpose: To investigate short-term response rate, quality of life and toxicities of mannan peptide combined with TP regimen in treating patients with non-small cell lung cancer (NSCLC). Patients and Methods: Forty one patients with NSCLC were divided into an experimental group treated with TP regimen combined with mannan peptide (21 patients) and a control group treated with TP alone (20 patients). Results: Response rates were 61.9% (13/21) for the experimental and 60% (12/20) for the control group (p>0.05). Regarding toxicity, white blood cell decreased more frequently in the control group (65%, 13/20) than in the experimental group (33.3%, 7/21) (p<0.05); nausea and vomiting also occurred more frequently in the control group (55%, 11/20 vs 23.8%, 5/21) (p<0.05). In terms of quality of life, this index was improved by 57.1% (12/21) and 25% (5/20) in experimental and control groups, respectively (p<0.05). Conclusions: Response rate of TP after combined with mannan peptide is mildly increased, while this combination alleviates bone marrow suppression as well as nausea and vomiting of TP, and improves quality of life when treating patients with NSCLC. However, this conclusion should be confirmed by randomized clinical trails.