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태아발육지연 유무에 따른 자간전증 임신태반에서의 Telomerase 활성도
정영내(Young Nae Jung),김세광(Sei Kwang Kim),정현철(Hyun Cheol Chung),박규현(Kyu Hyun Park),김창한(Chang Han Kim),조현정(Hyun Jung Cho),박용원(Yong Won Park),조재성(Jae Sung Cho),김인규(In Kyu Kim),양영호(Young Ho Yang),김재욱(Jae Wo 대한산부인과학회 2000 Obstetrics & Gynecology Science Vol.43 No.2
Objectives: To analyze telomerase activity(TA) in human placenta tissues and to compare TA in preeclampsia with or without fetal growth restriction(FGR) Methods: Fourty-six placenta specimens were obtained from pregnant women between 29 and 41 weeks' gestation. TA of each specimen was analyzed including 21 specimens without either preeclampsia or FGR(Group 1), 9 specimens with preeclampsia but without FGR(Group 2), and 16 specimens with both preeclampsia and FGR(Group 3). TA was analysed by radioisotope PCR based telomeric repeat amplification protocol(TRAP) assay. TA was calculated and translated into arbitrary units by computer-assisted densitometry with the control of TA in 293 cell lines. Results: TA was expressed in 16 of 21(76.1%) in group 1, and in 3 of 9(33.3%) in group 2. In contrast, only 4 patients(25%) in group 3 expressed TA. Thus, TA was expressed significantly more often in group 1 than in group 2 and group 3(p=0.003). However, compared with group 2, expression of telomerase activity in group 3 was not reduced significantly(p>0.05). Conclusion: TA was minimal in placenta from preeclamptic women with and without FGR, suggesting placental senescence and apoptosis may be associated with FGR and severe preeclampsia.
후방십자인대 손상에서 자기공명영상 소견 - 자연 치유력 -
정영복(Young Bok Jung),태석기(Suk Ki Tae),양동렬(Dong Lyul Yang),한정남(Jung Nam Han),송인섭(In Sup Song),강인규(In Kyu Kang) 대한슬관절학회 2000 대한슬관절학회지 Vol.12 No.2
Purpose : The aim of this study was to elucidate the continiuty of ligament in chronic injury of the pos- terior cruciate ligament(PCL). Materials and Methods : Magnetic resonance imaging(MRI#) of twenty-six PCL injury patients with grade II or III laxity and more than 5mm side to side difference on stress radiographs were reviewed in terms of ligamentous continuity and thickness of the ligament at average 7.2 months(range:1-36) after injury. Resalts: Eighteen PCLs(69%) showed continuity of PCL. When thickness of the ligament in cases without continuity was rated as zero, the average thickness of the PCLs as compared to intact portion of the ligament increased as the time from injury elapsed; 16.4% in 0 2 months group(7 cases), 30.0% in 3- 5 months group(6 cases), 53.8% in 6-8 months group(9 cases) and 80.0% in over 9 months group(4 cases). Conclusion: More than two thirds of PCLs in symptomatic chronic injury showed ligamentous conti- nuity on MRI. The longer the interval from injury was, the thicker the PCL was.
수술후 급성 동통에 대한 Tramadol/Acetaminophen과 Codeine/Acetaminophen/Ibuprofen의 효과 발현시점과 진통효과의 비교
정영수(Young-Soo Jung),김동기(Dong-Kee Kim),김문기(Moon-Key Kim),김형준(Hyung-Jun Kim),차인호(In-Ho Cha),한무영(Moo-Young Han),이의웅(Eui-Wung Lee) 대한구강악안면외과학회 2004 대한구강악안면외과학회지 Vol.30 No.2
Background: Some clinical trials have reported that a new analgesic combination of tramadol and acetaminophen provides good efficacy in various pain models. For the more clinical uses of this agent, comparisons about the onset of analgesia and analgesic efficacy in the acute state of pain with the other drugs known as strong analgesics were needed. Purpose: The goal of this study was to compare the times to onset of analgesia and the other analgesic efficacy of 75 mg tramadol/650 mg acetaminophen and 20 mg codeine/500 mg acetaminophen/400 mg ibuprofen in the treatment of acute pain after oral surgery. Patients and Methods: Using a randomized, single-dose, parallel-group, single-center, and active-controlled test design, this clinical study compared the times to onset of analgesia using a two-stopwatch technique and the other analgesic efficacy of the single-dose tramadol/ acetaminophen and codeine/acetaminophen/ibuprofen. These were assessed in 128 healthy subjects with pain from oral surgical procedures involving extraction of one or more impacted third molars requiring bone removal. From the time of pain development, the times to onset of perceptible and meaningful pain relief, pain intensity, pain relief, an overall assessment, and adverse events of the study medications were recorded for 6 hours. Results: The demographic distribution and baseline pain data in the two groups were statistically similar. The median times to onset of perceptible pain relief were 21.0 and 24.4 minutes in the tramadol/acetaminophen and codeine/acetaminophen/ibuprofen groups respectively and those to onset of meaningful pain relief were 56.4 and 57.3 minutes, which were statistically similar. The other efficacy variables such as mean total pain relief (TOTPAR) and the sum of pain intensity differences (SPID) were also similar in the early period after pain development and drug dosing. The safety of tramadol/acetaminophen was well tolerated and very comparable to that of codeine/acetaminophen/ibuprofen. Conclusions: In this acute dental pain model, the onset of analgesia and analgesic efficacy of tramadol/acetaminophen was comparable to that of codeine/acetaminophen/ibuprofen. These results showed that tramadol/acetaminophen was recommendable for fast and effective treatment in the management of postoperative acute pain.
정영한(Jung, Young-Han) 한국체육과학회 2017 한국체육과학회지 Vol.26 No.3
The purpose of this research is to analyze the major patterns and elements of win / lose by collecting and analyzing high school competition data in the 2017 middle and high school Taekwondo Federation presidential competition, and to provide Taekwondo players and coaches with reference materials for training and competitions based on more objective data. The data of Taekwondo competition used in this study were generated by decision tree model using data mining technique to find out factors and patterns related to win / loss. Decision trees were analyzed using SPSS clementine 11.1. The results were follow as: 1. The major factors and pattern of victory in Taekwondo competition were one pattern by face(3 points) and body(2 points). In other words, it is seen that winning rate is changed by acquiring score(2 points) and face(3 points), which are relatively easy to connect with score rather than body(3 points) or face(4 points). 2. Factors and patterns related to the defeat of Taekwondo games were also one pattern due to factors such as face(3 points) and body(2 points). This is because it allows more points for the body(2 points) and face(3 points), which are relatively easy to score, but it also can not score and can lead to a change in the defeat rate. 3. In the validity of the decision tree analysis used in this study, the hit rate for victory was 96% and the hit rate for defeat was 79.3%. This can be said to have yielded reasonable predictions.
태아발육지연 임신에서 산소농도가 영양배엽세포의 telomerase 활성도에 미치는 영향
정영내(Young Nae Jung),김세광(Sei Kwang Kim),정현철(Hyun Cheol Chung),박규현(Kyu Hyun Park),김창한(Chang Han Kim),장영건(Young Kwon Chang),권자영(Ja Young Kwon),김성훈(Sung Hun Kim),노성일(Sung Il Roh),조동제(Dong Jae Cho) 대한산부인과학회 2001 Obstetrics & Gynecology Science Vol.44 No.8
Objective : To observe the difference in telomerase activity (TA) expression in the placenta between fetal growth restriction (FGR) with preeclampsia and those without and to evaluate the effect of oxygen concentration on the TA expression in the trophoblastic cells. Methods : Telomerase activity was measured in 48 (normal pregnancies, 16; preeclampsia with FGR, 15; normotensive FGR, 17) placentas which were obtained between 32 and 41 weeks' gestations. Trophoblastic cells were extracted from 8 chorionic villi samples obtained from 8-10 weeks' placenta and were cultured in either 2%, 8%, and 20% oxygen atmosphere. Then TA was examined by using telomeric repeat amplification protocol (TRAP) assay. Results : During 3rd trimester of pregnancy, exhibited TA expression in normal pregnancy, FGR complicated by preeclampsia, and normotensive FGR groups were 11 of 16 (68.8%), 4 of 15 (26.7%), and 4 of 17 (23.5%), respectively. Significantly lower level of TA was detected in the FGR group compared to the normal pregnancies (p=0.009), whereas within FGR pregnancies, presence of preeclampsia did not seem to have statistically significant effect on TA expression. TA expression levels were measured by optical density in trophoblasts cultured under various oxygen concentration which revealed that significantly higher TA was exhibited in the cells cultured in 2% oxygen compared to 8% and 20% (p<0.001). However no significant difference was noted in TA between cells cultured in 8% and 20% oxygen. Conclusion : Decreased TA in the placenta from pregnancies with FGR was noted regardless of presence of preeclampsia indicating a probable correlation between FGR and placental senescence. Since increased TA was noted in trophoblastic cells that were cultured in hypoxic condition, we could speculate that the intervillous oxygen tension during early-stage placental development plays a certain role in the placental degeneration in pregnancies complicated by FGR and preeclampsia.
정영복(Young Bok Jung),태석기(Suk Kee Tae),양동렬(Dong Lyul Yang),박철경(Cheol Kyoung Park),김종원(Jong Won Kim),한정우(Jung Woo Han) 대한슬관절학회 2001 대한슬관절학회지 Vol.13 No.2
Purpose : To evaluate the outcome of the retensioning and augmentation of posterior cruciate ligament(PCL) in chronic PCL deficient patients. Materials and Methods : Twenty-three patients who underwent retensioning and augmentation of PCL were evaluated at average 24.9 months(16~43) after operation. Retensioning of remnant fiber of PCL by distally transferring of tibial bony attachment and augmentation with autogenous or allograft tendon were performed through a posterior approach in supine position. We assessed the posterior instability by stress radiographs with Telos^? stress device(Telos stress device; Austin & Associates, Inc.,G. Scheuda, HD) and maximal manual test with KT-1000 arthrometer(KT-1000(tm), MED metric, USA), and the clinical results by IKDC and OAK knee score before operation and after operation. Results : Average side to side difference in posterior stress radiograghs by Telos(r) stress device decreased from preoperatively 9.4mm(6~20) to postoperatively 2.0mm(0~8). Average side to side difference in maximal manual test with KT-1000 arthrometer also decreased from preoperatively 7.0mm(5~10) to postoperatively 1.7mm(0~5). Final IKDC score was A in four patients, B in fourteen and C in five, which was C in eleven and D in twelve preoperatively. Postoperative OAK score was excellent in eight patients, good in thirteen and fair in two, which was fair in nine and poor in fourteen preoperatively. Average OAK score improved from 66.3(42~79) to 87.3(79~97). Conclusion : The above results show favorable outcome after retensioning and augmentation of PCL without sacrificing the remaining fibers in reconstructive surgery for chronic PCL injury.