65세 이상의 노인 환자에서의 심판막 폐쇄부전증에 대한 임상적 고찰

류주성,왕준호,문언수,이홍순 대한노인병학회 2001 대한노인병학회지 Vol.5 No.4

The combined Effect of Adriamycin and Irradiation on the Small Intestinal Villi of Mice

Seong Eon Hong(홍성언),Chi Yul Ahn(안치열) 대한방사선종양학회 1986 Radiation Oncology Journal Vol.4 No.1

방사선 조사와 adriamycin 병용투여가 마우스 소장 소낭선세포의 방사선 감수성에 미치는 영향을 관찰하고 adriamycin의 방사선 증강효과를 측정하기 위하여 C3H계 마우스 120마리를 cobalt-60원 격치료기로 전복부에 조사하였다. 방사선 단독조사군은 1,000rad에서 1,600rad까지, adriamycin병용투여군은 900rad에서 1,400rad까지 각각 100rad씩 증강시켜 조사하였고 adriamycin 10mg/kg을 조사 2시간전과 4시간후에 각각 복강내에 주사하였다. 실험군은 84시간 후에 공장을 절제하고 소낭선 측정법을 이용하여 세포생존곡선을 작성하므로써 adriamycin 병용투여시의 조사효과를 측정하였으며, 주사전자현미경(SEM)으로 소장융모의 형태변화를 관찰하여 다음과 같은 효과를 얻었다. 1) 조사군의 환상면당 소낭선수는 평균 130+-16개이었다. 2) 방사선 단독조사 군에서 소낭선세포의 평균 치사선량은 160rad이었으며, 방사선조사 2시간과 4시간후 adriamycin 병용투여군은 모두 170rad이었다. 3) 방사선조사 2시간전과 4시간 후에 adriamycin 투여군의 dose effect factor(DEF)는 1.19와 1.26이었다. 4) 주사전자현미경소견에서 조사선량 증가에 따라 소장융모의 손상이 각각 다른 형태로 뚜렷이 변하였으며, conical collapse형태로 면한 것은 단독조사군의 1,200rad와 adriamycin병용투여군의 1,000rad에서 각각 관찰되었다. 이상의 실험결과로 보아 마우스 소장에서 방사선과 adriamycin 병용투여시 19~26%의 유의한 조사효과 상승이 관찰되었으므로 향후 복부나 골반부에 방사선조사와 항암제를 병용하는 경우에는 방사선 감수성이 높은 장기인 소장에 대한 손상을 고려하여 임상에서 암의 방사선치료에 깊은 배려가 필요하다고 사료된다. In order to clarify the effect of radiation on the mouse jejunal crypt cells by combined administration of administration and radiation and also to evaluate the enhancing effect of adriamycin, the authors performed this study by delivering single irradiation of 1,000 to 1,600 rad to the whole abdomen of mice by cobalt-60 teletherapy unit. In combination with adriyamycin treatment groups, the drug was administered as single dose of 10 mg/kg either 2 hours before or 4 hours after graded single dose,900 to 1,400 rad, of irradiation. The authors studied the quantitative changes of intestinal crypt cells by microcolony survival assay technique and the morphological changes of small intestinal villi by scanning electron microscope in mice following to combined therapy with adriamycin and irradiation, The average number of jejunal crypts per circumference was 130pm16 in control group. The mean lethal dose(Do) of each irradiation alone and combined therapy groups 2 hours before and 4 hours after irradiation, were 160, 170, and 170 rad in cell survival curves, respectively. The dose effect factor(DEF) of adriamycin in each groups of pre-irradiation and post-irradiation were 1.19 and 1.26, respectively. The conical shaped villi were noted on 1,200 rad in irradiation alone group and 1,000 rad in combined groups. For the proper clinical application we must be careful of the radiation injury to small bowel when the anticancer chemotherapy and radiation therapy to the abdomen and pelvic area are used as combined therapeutic modality.

Skin Radioprotector (Diethone) Modifying Dermal Response of Radiation on Rats

Hong, Seong-Eon,Urahashi, Shingo,Kamata, Rikisaburo The Korean Society for Radiation Oncology 1989 Radiation Oncology Journal Vol.7 No.1

Diethone의 피부에 대한 방사선 보호작용을 평가하기 위하여 Wistar계 랫드에 단일 X-선(20, 30, 40 Gy) 조사 후 시간경과와 선량변화에 따른 급성 피부반응을 연구하였다. 40Gy 선량에서 Diethone군의 피부반응기간은 24.7일로 대조군(29.8일)과 바셀린(29.2일) 투여군에 비하여 약$17\%$의 피부반응 기간이 뚜렷이 감소되었다. 피부반응이 최고도에 달한 10일 동안의 평균치는 Diethone군(2.43)이 대조군(2.91)과 바셀린(2.81)군에 비하여 현저히 감소되었다. 피부반응 Score 2.5에서 구한 등가효과 선량의 반응감소 계수(DRF)는 1.41로 피부보호효과가 있었다. 본 실험 결과로 보아 방사선 피부보호제를 국소적으로 도포함으로써 일반적인 치료선량보다 많은 방사선량을 거대하고 방사선내성이 있는 종양에 조사함으로로써 치료효과를 향상시킬 수 있을 것으로 기대한다. Investigations were carried out into the time-and dose-related changes in acute skin reaction following graded single dose (20,30 and 40 Gy) of x-ray irradiation in Wistar rats, in order to evaluate the radioprotective effect of Diethon on skin. For the duration of skin response over 1. 5 score in dose of 40 Gy, the Diethone group of 24.7 days was significantly different (p<0.02) from that of control (29.8 days) and vaseline (29.2 days) groups, it was $17.1\%$ diminution of skin response period compared with that of control group. By the averaging daily scores for 10 days during peak skin reaction the mean scores were obtained. Mean score of Diethone group $(2.43\pm0.22)$ was significantly different (p<0.01) from that of control $(2.91\pm0.23)$ and vaseline $(2.81\pm0.18)$ groups of 40Gy dose. By iso-effect dose obtained at level of 2.5 score the dose reduction factor (DRF) was 1.41 which reduced radiation dose of $41\%$ by radioprotective effect of Diethone. From this experimental data, it may be possible to give higer radiation dose to large and/or radioresistant tumor mass rather than conventional treatment doses for improving therapeutic ratio by using topical application of skin radioprotector.

The Prognostic Effect of VEGF Expression in Squamous Cell Carcinoma of the Cervix Treated with Radiation Therapy Alone

Hong Seong Eon,Kang Jin Oh 대한의학회 2004 Journal of Korean medical science Vol.19 No.5

Skin Radioprotector (Diethone) Modifying Dermal Response of Radiation on Rats

홍성언(Seong Eon Hong) 대한방사선종양학회 1989 Radiation Oncology Journal Vol.7 No.1

Diethone의 피부에 대한 방사선 보호작용을 평가하기 위하여 Wistar계 랫드에 단일 X-선(20, 30, 40 Gy) 조사 후 시간경과와 선량변화에 따른 급성 피부반응을 연구하였다. 40Gy 선량에서 Diethone군의 피부반응기간은 24.7일로 대조군(29.8일)과 바셀린(29.2일) 투여군에 비하여 약17%의 피부반응 기간이 뚜렷이 감소되었다. 피부반응이 최고도에 달한 10일 동안의 평균치는 Diethone군(2.43)이 대조군(2.91)과 바셀린(2.81)군에 비하여 현저히 감소되었다. 피부반응 Score 2.5에서 구한 등가효과 선량의 반응감소 계수(DRF)는 1.41로 피부보호효과가 있었다. 본 실험 결과로 보아 방사선 피부보호제를 국소적으로 도포함으로써 일반적인 치료선량보다 많은 방사선량을 거대하고 방사선내성이 있는 종양에 조사함으로로써 치료효과를 향상시킬 수 있을 것으로 기대한다. Investigations were carried out into the time-and dose-related changes in acute skin reaction following graded single dose (20,30 and 40 Gy) of x-ray irradiation in Wistar rats, in order to evaluate the radioprotective effect of Diethon on skin. For the duration of skin response over 1.5 score in dose of 40 Gy, the Diethone group of 24.7 days was significantly different (p<0.02) from that of control (29.8 days) and vaseline (29.2 days) groups, it was 17% diminution of skin response period compared with that of control group. By the averaging daily scores for 10 days during peak skin reaction the mean scores were obtained. Mean score of Diethone group (2.43±0.22) was significantly different (p<0.01) from that of control (2.91±0.23) and vaseline (2.81±0.18) groups of 40Gy dose. By iso-effect dose obtained at level of 2.5 score the dose reduction factor (DRF) was 1.41 which reduced radiation dose of 41% by radioprotective effect of Diethone.From this experimental data, it may be possible to give higer radiation dose to large and/or radioresistant tumor mass rather than conventional treatment doses for improving therapeutic ratio by using topical application of skin radioprotector.

원저 : 방사선 조사와 Adriamycin 병용투여가 마우스 소장에 미치는 영향에 관한 연구 ( Original Article : The Effect of combined adriamycin and Irradiation on the Small Intestine of Mice )

홍성언(Seong Eon Hong),안치열(Chi Yul Ahn) 경희대학교 경희의료원 1986 慶熙醫學 Vol.2 No.1

Prognostic Factors in Patients with Brain Metastases from Non-Small Cell Lung Carcinoma

홍성언(Seong Eon Hong) 대한방사선종양학회 1991 Radiation Oncology Journal Vol.9 No.2

비소세포성 폐암의 뇌전이 환자에서 방사선 치료후 예후인자를 분석하기 위하여 경희대학 부속병운 치료방사선과에서 치료받은 53예의 방사선치료 결과를 분석하였다. 전체 53예중 남자가 37명 여자가 16예이고, 연령분포는 39세부터 85세까지로 평균 59세 였다. 조직학적 소견은 선암이 27예(50.9%)로 가장 많았으며 편평세포암(21예), 대세포암(5예) 순이었다. 모든 환자에서 스테로이드투여와 함께 전뇌조사를 시행하였다. 전체 환자의 중간생존 기간은 5개월이었고, 나이, 성별, 조직형태, 초기 수행상태는 예후에 영향을 미치지 않았다. 가장 중요한 예후인자는 방사선치료후 반응여부와 뇌이외 부위의 다발성 전이 유무 였다. 따라서 뇌전이 단독소견을 가진 비세포성 폐암 환자에서 적정한 방사선 치료선량으로 적극적인 치료로써 생존기간을 연장시키고 quality of life를 향상시킬수 있을 것으로 기대한다. A retrospective study of 53 patients suffering from non-small cell carcinoma of lung with brain metastases is presented. They were treated in the Department of Therapeutic Radiology of Kyung Hee University Hospital from 1983 to 1990. There were 37 male and 16 female patients. The age range was 39 to 85 years (median =59). The most common histologic cell type of tumor was adenocarcinoma (50.9%), followed by squamous cell carcinoma and large cell carcinoma. All patients were treated with whole-brain photon irradiation (WBI) using lateral opposing fields. The overall median survival time was 5 months. Age, sex, histologic type, and initial performance status were not prognostically important. the most important prognostic factors were the response to radiotherapy and the presence of brain metastases alone. Increasing the dose os radiotherapy to the main bulk of tumor may improve the symptom-free survival or overall survival in patients who present with brain metastases as the sole site of extrathoracic disease.

원저 : 방사선조사에 의한 마우스 구강점막 상피의 급성반응 ( Original Article : An Experimental Study for Acute Reaction of Lip Mucosa of Mice To Irradiation )

홍성언(Seong Eon Hong),안치열(Chi Yul Ahn) 경희대학교 경희의료원 1987 慶熙醫學 Vol.3 No.4

[우수논문] 문서요약 모델 성능 향상을 위한 Post-training 기법

홍성은(Seong-Eun Hong),김봉민(Bong-Min Kim),김소언(So-Eon Kim),박규민(Gyu-Min Park),홍충선(Choong Seon Hong),박성배(Seong-Bae Park) 한국정보과학회 2022 한국정보과학회 학술발표논문집 Vol.2022 No.12

腦腫瘍의 放射線治療後 發生한 慢性變化의 CT所見

홍성언(Seong Eon Hong),조종희(Chong Hee Cho),안치열(Chi Yul Ahn) 대한방사선종양학회 1984 Radiation Oncology Journal Vol.2 No.2

The normal intracranial structures are relatively resistant to therapeutic radiation, but may react adversely in a variety of ways, and the damage to nerve tissue may be slow in making its appearance, and once damage has occurred the patient recovers slowly and incompletly. Therefore, it is important to consider the possibility of either recurrent tumor or late adverse effect in any patient who has had radiotherapy. The determination of morphological/pathological correlation is very important to the rapeutic radiologist who used CT scans to define a treatment volume, as well as to the clinician who wishes to explain the patient's clinical state in terms of regress, progression, persistence, or recurrence of tumor or radiation-induced edema or necrosis. The authors are obtained as following results; 1. The field size(whole CNS, large, intermediate, small field) was variable according to the location and extension of tumor and histopathologic diagnosis, and the total tumor dose was 4,000 to 6,000 rads except one of recurred case of 9.100 rads. The duration of follow up CT scan was from 3 months to 5 year 10 months. 2. The histopathologic diagnosis of 9 cases were glioblastoma multiforme(3 cases), pineal tumor (3), oligodendroglioma (1), cystic astrocytom (1), pituitary' adenoma (1) and their adverse effects after radiation therapy were brain atrophy (4 cases), radiation necrosis(2), tumor recurrence with or without calcification (2), radiation-induced infarction(1). 3. The recurrent symptoms after radiation therapy of brain tumor were not always the results of regrowth of neoplasm, but may represent late change of irradiated brain. 4. It must be need that we always consider the accurate treatment planning and proper treatment method to reduce undesirable late adverse effects in treatment of brain tumors.