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근타박상시 치료용 초음파가 Substance-P 발현에 미치는 효과에 대한 면역조직화학적 연구
김용수,김석범,김진상,박래준,Kim Yong Su,Kim Seok Beom,Kim Jin Sang,Park Rae Jun 대한물리치료학회 2003 대한물리치료학회지 Vol.15 No.1
The purpose of this study was to evaluate the effect of therapeutic ultrasound after muscle contusion injury by observed immunoreactivity of substance-P that plays an important role in pain transmission. Ultrasound irradiation(1MHz, 1W/$cm^{2}$ continuous mode, treatment time 5 min) was applied through water submersion technique to 1 limb daily by kept off 5cm from muscle belly of gastrocnemius. The result of this study were as follows. 1. The substance-P was expressed in lamina I and II of dorsal horn of spinal cord, also in lamina IV and around of central cannel of spinal cord. Experimental group was lower expressed than control group with the exception of 1 days. 2. The substance-P immunoreactivity was decreased for 5 days together in lumbar and sacral region of all groups, expecially experimental group was rapidly. These data suggest therapeutic ultrasound may stimulate pain relief by diminish of substance-P in dorsal horn of spinal cord.
김용수,정신,윤상원,이정길,김태선,김재휴,김수한,강삼석,이제혁,Kim, Yong-Su,Jung, Shin,Yoon, Sang-Won,Lee, Jung-Kil,Kim, Tae-Sun,Kim, Jae-Hyoo,Kim, Soo-Han,Kang, Sam-Suk,Lee, Je-Hyuk 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.7
Objective : Object : A 7-year retrospective clinical and MRI study was reviewed to evaluate the characteristics of pineal cyst. We evaluated results of clinical and radiologic change of pineal cyst during follow up period. Patients and Methods : From 1992 to 1999, 50 patients with pineal cyst were visited for evaluation. Follow up clinical information was obtained from patients or clinical record through phone conversation. also radiologic findi-ngs of pineal cyst in mid-sagittal MRI were reviewed in detail. Results : Pineal cysts were usually asymptomatic and detected incidentally during evaluation of other diseases. Sagittal MRI is the most useful diagnostic test. The radiologic findings of pineal cyst were isointensity on T1WI comared to CSF and slightly high signal intensity on T2WI. Cyst wall was variably enhanced on Gad-enhanced T1WI. The average size of cyst was $13.9{\times}13.0mm$. The pineal cyst was classified into five groups according to previous report. Long term behavior of these lesions are not apparent, but in our study they showed no specific changes in clinical and radiological aspects during 25 months. Conclusion : Although long-term follow up results are needed, the pineal cyst are considered as normal variants. In our 25 months follow up results, there was no rapid change of cyst both clinically and radiologically. Therefore, frequent radiologic evaluation seems unnecessary except type III pineal cyst.
고속 구동용 단상 자속 역전식 전동기의 감자특성 및 철손분석
김용수,권삼영,이주,Kim, Yong-Su,Kwon, Sam-Young,Lee, Ju 한국조명전기설비학회 2006 조명·전기설비학회논문지 Vol.20 No.1
This paper presents the demagnetization and iron loss analysis of the single phase Flux Reversal Machine. It has a magnetic configuration similar to the switched reluctance machine but with multipole permanent magnets of alternate polarity on each stator salient pole embraced by concentrated coils. But it can be demagnetized by sudden over current and core losses increase because switching frequency is getting faster. This paper show demagnetization of permanent magnet and iron loss characteristic, and proposed a solution. 자속 역전식 전동기(Flux Reversal Motor: FRM)는 고정자 치 표면에 영구자석을 갖는 구조이며 회전자가 돌극 형태이므로 관성이 적고 기계적으로 강인한 특성을 지녀서 고속기로의 적용이 가능하다. 그러나 단상 FRM은 구조적 특징으로 인하여 영구자석의 감자가 쉽게 일어나며, 고속 구동시 스위칭 주파수가 커짐에 따라 철손이 크게 상승하게 된다는 한계점을 지닌다. 본 논문에서는 유한요소법을 이용하여 단상 FRM의 설계 파라미터가 전동기의 감자특성에 주는 영향을 고찰해보았고 그 해결 방안을 제시하였으며 철손 특성을 분석하였다.
복강내 전이된 혈관 중심성 T-세포 림프종의 한방치료 : 증례보고
김용수,윤성우,Kim, Yong-Su,Yoon, Seong-Woo 대한암한의학회 2005 大韓癌韓醫學會誌 Vol.10 No.1
Angiocentric T-cell lymphoma is a rare form of peripheral T-cell lymphoma. The disease typically manifests clinically as an aggressive, progressively destructive disorder often with a fatal outcome. It is the aim of the present paper to derive further studies evaluating the effectiveness of Korean traditional medicine on angiocentric T-cell lymphoma with intra-abdominal metastasis. A patient with high fever, weight loss, night sweat and general weakness(B symptoms) was diagnosed as angiocentric T-cell lymphoma and chemotherapy was done more than 10 times. But the response to chemotherapy was poor, finally the lymphoma involved liver and spleen. The abdominal CT showed the hepatosplenomegaly, diffuse lymphoma of liver and spleen, massive ascites, minimal pleural effusion. Then the patient gave up the chemotherapy and only herb medications (Bohyunsoamtang-A,B) were administered. The ascites, high fever and hepatosplenomegaly gradually reduced to normal. He survived for 7 years after first diagnosis, which is much longer than average survival time in angiocentric T-cell lymphoma with B symptoms. This case may give us a possibility of that Korean traditional herb medications offer potential benefits for patients with angiocentric T-cell lymphoma, and more researches are needed.