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이계영,민경인,정수일,박재범,안재진,김도균,김철환 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.4
Soft tissue expansion is widely used technique in oral & maxillofacial reconstruction and provide new method of reconstruction in posttraumatic alopecia, post burn, wide scar, congenital deformity, benign tumor, tattoo, etc. Expanded tissue flaps have the advantage of increased vascularity, proximity to the defect, and similarity of color and texture. They also preclude the need to advance flaps from distant sites. Tissue expansion can be used to form a well vascularized cavity to accomodate and nourish bone grafts. The following report describes the uses of tissue expanders by allowing bone grafting to correct both soft and bony defects of mandibular region
Alginate Lyase Production of Halophilic Pseudomonsa sp. by Recombinant Escherichia coli
KONG, IN SOO,KIM, YOUNG OK,KIM, JIN MAN,KIM, SUNG KOO,OH, DOO HWAN,YU, JU HYUN,KONG, JAI YUL 한국미생물 · 생명공학회 1995 Journal of microbiology and biotechnology Vol.5 No.2
Halophilic Pseudomonas sp.W7 isolated from laver in the southern sea of Korea showed alginate lyase activity. Gene (aly) encoding alginate lyase was cloned in E.coli JM83 and the N-terminal amino acid sequence of the enzyme was determined after purificaion. The recombinant enzyme has been shown to have a molecular weight of about 40kDa after 12% SDS-polyacrylamide gel electrophoresis.
Alginate Lyase Production of Halophilic Pseudomonas sp. by Recombinant Escherichia coli
Kong, In-Soo,Kim, Young-Ok,Kim, Jin-Man,Kim, Sung-Koo,Oh, Doo-Hwan,Yu, Ju-Hyun,Kong, Jal-Yul The Korean Society for Microbiology and Biotechnol 1995 Journal of microbiology and biotechnology Vol.5 No.2
Halophilic Pseudomonas sp.W7 isolated from laver in the southem sea of Korea showed alginate lyase activity. Gene (aly) encoding alginate lyase was cloned in E.coli JM83 and the N-terminal amino acid sequence of the enzyme was determined after purificaion. The recombinant enzyme has been shown to have a molecular weight of about 40kDa after 12% SDS-polyacrylamide gel electrophoresis.
The Effect of Combined Exercise on Physical Fitness and Cognitive Function in Older Adults
( Jung Hwan Park ),( Sang Hee Lee ),( Je Young Bae ),( Jin Hee Han ),( In Hwan Lee ),( Ji Young Kong ),( Seung Hoon Yang ),( Eue Soo Ann ),( Hyun Sik Kang ) 한국체육학회 2015 국제스포츠과학 학술대회 Vol.2015 No.1
Purpose: The purpose of this study was to investigate the effects of combined exercise training on physical fitness and cognitive function in elderly persons. A total of 30 elderly persons (aged 69.5±5.5 years) were voluntarily recruited from local residents in the S city of Gyeonggi-Do. Method: The subjects were conveniently assigned to either exercise (n=15) or control group (n=15). The exercise group underwent a combined exercise intervention consisting of senior aerobic exercise and resistance exercise at an intensity of 50-60% of target heart rates with duration of 60-minute per session (10-min warm-up followed by 40-minute main exercise finished with 10-minute cool-down) and a frequency of 3days per week for 12 weeks. The control group maintained their sedentary life styles during the experimental period. Eight (7 women and 1 man) out of the initial 30 participants dropped out due to personal reasons. Data collected from the remaining 22 participants were used in the final analyses. Outcome variables included body composition, functional physical fitness parameters, Korean version of mini-mental state examination for dementia screening (MMSE) score-based cognitive function. Two-way mixed ANOVAs with repeated measures were used to test significant time by group interactions for the measured variables at a statistical significance of p=0.05. Result: Significant group by time interactions were found for changed physical fitness parameters, cognitive function scales. Compared to the control group, the exercise had significant improvements in lower-, upper body strength, endurance and lower body-flexibility after the exercise intervention. In addition, the exercise group had significantly improved MMSE score-based cognitive function, as compared with the control group. Conclusion: In summary, the present findings of the study suggest that combined exercise intervention provides a safe and effective means against cognitive declines with aging. Acknowledgement: The National Research Foundation Grant funded by the Korean Government (NRF-2012R1A1A2006180) supported this work
Validation of Functional Performance Tests after Anterior Cruciate Ligament Reconstruction
( Doo Hwan Kong ),( Sang Jin Yang ),( Jeong Ku Ha ),( Seok Hwan Jang ),( Jung Gook Seo ),( Jin Goo Kim ) 대한슬관절학회 2012 대한슬관절학회지 Vol.24 No.1
Purpose: To validate the functional performance tests (FPTs) after anterior cruciate ligament (ACL) reconstruction. Materials and Methods: Thirty men in their third decade after ACL reconstruction at 6 month follow-up and thirty healthy subjects were selected. Lysholm knee score, International Knee Documentation Committee (IKDC) subjective score, Tegner activity score, KT-2000 arthrometer test, isokinetic strength test, functional performance tests (one leg hop test, co-contraction test, shuttle run test, carioca test) were performed in two groups. We evaluated the test-retest reliability of FPTs in healthy group and the between FPTs and other parameters in ACL reconstruction group. Results: The test-retest result showed high correlation in co-contraction test (r=0.511), shuttle run test (r=0.746), carioca test (r=0.742). In the ACL reconstruction group, the IKDC score, Tegner activity score, extensor power at 60o/s, and one leg hop test also showed high correlation between each test. Conclusions: The three FPTs showed correlations with the established methods for determining return to sports activities after ACL reconstruction and had high test-retest reliability. Therefore we believe the three FPTs can be useful methods to assess knee function in athletes after ACL reconstruction.
Effectiveness of high physical activity after rotator cuff repair
Suk-Hwan Jang,Moon-Young Choi,Doo-Hwan Kong,Jin-Seong Kim,Pei Wei Wang 대한견주관절의학회 2021 대한견주관절학회 학술대회논문집 Vol.2021 No.3
Introduction and Background Pain, strength recovery and tendon healing are among the most discussed topics after arthroscopic rotator cuff repair. Little is known about the effect of aerobic exercise on the clinical outcome. The purpose of this study was to investigate how different levels of walking-based physical activity in the early rehabilitation stage after rotator cuff repair affect the clinical and radiologic outcome. Material and Method Among the patients who underwent arthroscopic rotator cuff repair, 42 subjects were included according to the selection criteria. Using International Physical Activity Questionaire (IPAQ) postoperatively, patients were grouped into high physical activity group (HPA) and low physical activity group (LPA). Clinical results and strength (grip and isokinetic) were collected for each patient pre-op, immediately after the surgery, 6 weeks, 3, 6, and 12 months after the surgery. Re-tear rate was assessed using MRI and ultrasonography at 6 months and 1 year after the surgery. Results Twenty-two patients were classified to HPA group and twenty patients in LPA. Mean age was 60.1±8.2 years and 63.3±8.2 years respectively. Subjective symptoms were significantly lower in HPA at 6weeks and 3months post-operatively (P<0.05). Recovery of range of motion joint was significantly faster in HPA than LPA at 3 months post-operatively. ASES and Constant scores were significantly lower in HPA at 6 weeks and 3 months after surgery (P<0.05). Isokinetic strength was significantly higher in HPA at 3 months postoperatively in flexion and external rotation (P<0.05). Postoperative re-tear rate was 4.5% (n=1) in HPA and 15% (n=3) in LPA, but there was no statistically significant difference (P>0.05). Conclusions Higher level of physical activity in the early rehabilitation stage after arthroscopic rotator cuff repair showed faster pain relief and strength recovery. Active walking-based physical activity is beneficial during the early phase of rehabilitation after rotator cuff repair.