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금속판 및 나사못을 이용한 족근관절 외과 골절 치료의 문제점
하난경,백대현,손종민,김형관,장주해,현봉헌 대한골절학회 1998 대한골절학회지 Vol.11 No.4
The goal in treatment of ankle fracture is the restoration of normal ankle function. Although controversy still exists over the best method of treatment, recent ariticles emphasize importance of the anatomic reduction of fibula and the benefits of early mobilization when adequate fixation is accomplished. When we fix fracture of lateral malleolus with plate and screws, the distal screws should engage the medial cortex of the fibula but not protrude into the talofibular joint. Because the penetration of screws into ankle joint may be the cause of postoperative pain and post-traumatic arthritis. This article has reviewed a series of 36 ankle fractures, treated from March 1993 to January 1997, using plate and screws. In order to analyse the influence of the penetration of screws into the ankle joint, all fractures were classified according to the penetrating length of screw from medial cortex of lateral malleolus. Those with the end of the screw protnided more than 2mm into joint were clssified group I, those with less than 2mm group II, those with no engagement group III. The results obtained from this study were as follows: l. According to clinical and radiolgraphic assessment of the results of the treatment, open reduction and internal fixation using plate and screws in treatment of lateral malleous was a satisfactory method. The excellent or good results were achieved in 28 patients among the 36 patients (77.8 %). 2. Average time of bony union was not different significally among the three groups. 3. The gain of full range of motion was delayed in group I. 4. Patients of group I complained persistent pain and discomfort more frequently than the other groups. 5. In the treatment of lateral malleolar fracture, the distal screws should engage the medial cortex of fibula to gain firm fixation,but should not protrude more than 2mm into the ankle joint.
김난희,백세현,오정헌,최경묵,박이병,최동섭 대한당뇨병학회 2000 Diabetes and Metabolism Journal Vol.24 No.3
Background: Type 1 diabetes mellitus (Type 1 DM) results from autoimmune destruction of β-cells of the pancreas. Many treatments aimed at inducing remission of newly diagnosed type 1 DM or preventing of type 1 DM in high risk group are being conducted. BCG is known to modulate the development of spontaneous diabetes in animal model of type 1 DM. In some studies, single injection of BCG induced clinical remission in recent onset type 1 DM patients. However, the effect of BCG on human is still controversial. Thus, we performed a prospective study to evaluate the effect of BCG on type 1 DM. Methods: We enrolled a total of 23 type 1 DM patients within 6 months period. Randomly selected 14 patients were injected 0.1 ml BCG intradermally and 9 patients were injected normal saline. Fasting and postprandial 2 hour C-peptides, and insulin requirements were measured in all patients at enrollment and at 6, 12 and 24 months after BCG vaccination. Results: At enrollment, there was no significant difference in age, sex, duration of diabetes, HbA_(1-c), body mass index, fasting and postprandial 2 hour C-peptides, and insulin requirement between BCG group and control group. During follow-up, there was no significant difference in fasting and postprandial 2 hour C-peptides. However postprandial 2 hour C-peptides in BCG group were higher than those in control group at 12 and 24 months (p-value$gt;0.05). Insulin requirements also were lower in BCG group than in control group at 12 and 24 months (p-value$gt;0.05). Clinical remission has been sustained in 2 BCG vaccinated patients at 6 and 12 months. In one of the two patients, remission was sustained for 36 months. Conclusion: BCG vaccine is safe and convenient to use, however, a large study is warranted for the use of BCG as a therapy of type 1 DM .
당뇨병성 말초 신경병증에 대한 Ginkgo Biloba Extract의 효과 : 12주간의 이중맹검하 무작위 위약 대조 시험
김난희,백세현,최경묵,최동섭,김동림 대한당뇨병학회 2000 Diabetes and Metabolism Journal Vol.24 No.3
Background: In the pathogenesis of diabetic neuropathy, metabolic derangement and ischernic damage have been considered as the major possible mechanisms. Ginkgo lailoba extract was known to improve microcirculation by its vasodilator and antiplatelet effects, and used for peripheral and cerebral circulatory disorder. It also acts as free radical scavenger and inhibits oxidative damage. Thus, in this study we evaluate the effects of Ginkgo biloba extract on symptoms and nerve conduction study in patients with diabetic peripheral neuropathy. Methods: In this study, over 3 months period, we recruited a total of 33 type 2 diabetic patients with peripheral neuropathy. Nineteen patients were randomly assigned to receive placebo, and fourteen patients to receive Ginkgo biloba extract (40 mg tid) for a duration of 12 weeks. We measured fasting blood glucose, postprandial 2 hour blood glucose levels, glycosylated hemoglobin and the lipid profiles. Clinical evaluation included neuropathy symptom score and nerve conduction study, and it was performed before and after the treatment. Results: During the treatment, fasting blood glucose, postprandial 2 hour blood glucose, glycosylated hemoglobin and the lipid profiles were not significantly changed. Furthermore, no significant changes of neuropathy symptom score were observed during the treatment period. However, in Ginkgo biloba extract treatment group, motor nerve conduction velocities of median and ulnar nerve were improved significantly when compared to the placebo group. Conclusion: With the 12 weeks Ginkgo biloba extract treatment, we observed some improvement of nerve conduction velocity without any serious side effect.
Kyung Wan Baek,Nan Kyung Kim,Min Chae Song,Eun Ju Cho,Ji Hyun Kim 한국응용생명화학회 2024 Journal of Applied Biological Chemistry (J. Appl. Vol.67 No.-
Oxidative stress induced by amyloid beta (Aβ) in the brain is closely related to the prevalence of neurodegenerative disease. Sprouts are considered to contain various biological compounds that promote potential health benefits. In this study, we compared the antioxidant activity and neuroprotective effects of 12 species of vegetable sprouts commonly consumed in Korea in Aβ-induced SH-SY5Y neuronal cells. These 12 species of sprout extracts were analyzed for total polyphenol and flavonoid contents. In particular, wheat sprouts contained higher total polyphenol and flavonoid contents compared to other sprout extracts. In addition, 12 species of sprouts dose-dependently increased 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS+) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activities. The pea, wheat, and yellow buckwheat sprouts showed the highest both ABTS+ and DPPH radical scavenging activities. Treatment with clover and rape sprouts resulted in higher cell viability in Aβ-induced SH-SY5Y cells compared to other vegetable sprouts. Moreover, all 12 species of sprouts inhibited the production of reactive oxygen species (ROS) in Aβ-induced SH-SY5Y cells. Therefore, these findings suggest that vegetable sprouts exhibits antioxidant and neuroprotective effects against Aβ induced oxidative stress by regulating the inhibition of ROS.
EXPERIMENTAL SIMULATION OF A DIRECT VESSEL INJECTION LINE BREAK OF THE APR1400 WITH THE ATLAS
Choi, Ki-Yong,Park, Hyun-Sik,Cho, Seok,Kang, Kyoung-Ho,Choi, Nan-Hyun,Kim, Dae-Hun,Park, Choon-Kyung,Kim, Yeon-Sik,Baek, Won-Pil Korean Nuclear Society 2009 Nuclear Engineering and Technology Vol.41 No.5
The first-ever integral effect test for simulating a guillotine break of a DVI (Direct Vessel Injection) line of the APR1400 was carried out with the ATLAS (Advanced Thermal-hydraulic Test Loop for Accident Simulation) from the same prototypic pressure and temperature conditions as those of the APR1400. The major thermal hydraulic behaviors during a DVI line break accident were identified and investigated experimentally. A method for estimating the break flow based on a balance between the change in RCS inventory and the injection flow is proposed to overcome a direct break low measurement deficiency. A post-test calculation was performed with a best-estimate safety analysis code MARS 3.1 to examine its prediction capability and to identify any code deficiencies for the thermal hydraulic phenomena occurring during the DVI line break accidents. On the whole, the prediction of the MARS code shows a good agreement with the measured data. However, the code predicted a higher core level than did the data just before a loop seal clearing occurs, leading to no increase in the peak cladding temperature. The code also produced a more rapid decrease in the downcomer water level than was predicted by the data. These observable disagreements are thought to be caused by uncertainties in predicting countercurrent flow or condensation phenomena in a downcomer region. The present integral effect test data will be used to support the present conservative safety analysis methodology and to develop a new best-estimate safety analysis methodology for DVI line break accidents of the APR1400.