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구순구개열환자에서 자가입자망상골을 이용한 이차성 치조골이식에 관한 임상적 연구
김종렬,진성준,조영철,표세정,변준호 대한악안면성형재건외과학회 2001 Maxillofacial Plastic Reconstructive Surgery Vol.23 No.2
Purpose : This study is conducted to evaluate the clinical success of secondary alveolar bone grafting using autogenous iliac particulate cancellous bone marrow in cleft maxilla. Materials and methods : We evaluated 107 cleft patients who had been admitted to the Dept. of Oral and Maxillofacial Surgery of Pusan National University Hospital from January 1, 1991 to January 31, 1999 and had been performed secondary alveola bone grafting with autogenous particulated cancellous bone marrow from iliac crest. Results : 1. Men were 70 and women were 37, which shows 65.4% and 34.6% and the proportion of males to females was 1.9: 1. Unilateral cases were 89(83.2%) and bilateral cases were 18(16.8%). 2, Age of bone grafting is widely distributed from 7 to 29, and the average was 13.2. 3. Success rate was 97.8% in unilateral cases, 94.4% in bilateral cases. Overall success rate was 96.7%. 4. We evaluated the bone graft contour by the percentage of bone attachment level adjacent to the alveolar cleft and the menial side showed 82.4% and the distal 87.7%. 5. The amount of notching the alveolar ridge at the grafted site through the ratio of notching length up to the most apical base to the length of proximal segment anatomic root was 0.19.
김종렬,정기돈,진성준,조영철,변준호,손우성 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.5
Alveolar bone grafting is an essential component of successful surgical rehabilitation in many common cleft deformities. Primary alveolar bone grafting is defined as alveolar bone grafting which takes place before eruption of the primary dentition or before 1 years of age. The major objective in primary alveolar bone grafting is to prevent significant maxillary segmental collapse and arch disturbances. If severe, this can make secondary rehabilitation difficult, costly, and protracted. Such early stabilization may eliminate or, at least, decrease the amount of orthodontic arch expansion required during the transitional dentition period. Furthermore, early obliteration of alveolus fistulae improves speech and dental hygiene. It is critical that abutting maxillary segmental alignment be achieved(generally when the patient is 8 to 10 months of age) before grafting. Otherwise, the amount of dissection necessary to develop mucosal flaps for bone graft coverage will be more extensive, thus risking increased scar formation with potential adverse effects on growth. We report a preliminary result of 4 cases of primary alveolar bone graft using rib bone, performed by limited dissection and onlay graft technique at 8 to 10 months of age. They showed satisfactory clinical results especially in terms of growth up to now.
Human extracellular superoxide dismutase (EC-SOD) expression in transgenic chicken
( Sung June Byun ),( Mi Ran Ji ),( Ye Jin Jang ),( A In Hwang ),( Hee Kyoung Chung ),( Jeom Sun Kim ),( Kyung Woon Kim ),( Hak Jae Chung ),( Byoung Chul Yang ),( Ik Soo Jeon ),( Jin Ki Park ),( Jae Gy 생화학분자생물학회 2013 BMB Reports Vol.46 No.8
Extracellular superoxide dismutase (EC-SOD) is a metalloprotein and functions as an antioxidant enzyme. In this study, we used lentiviral vectors to generate transgenic chickens that express the human EC-SOD gene. The recombinant lentiviruses were injected into the subgerminal cavity of freshly laid eggs. Subsequently, the embryos were incubated to hatch using phases II and III of the surrogate shell ex vivo culture system. Of 158 injected embryos, 16 chicks (G0) hatched and were screened for the hEC-SOD by PCR. Only 1 chick was identified as a transgenic bird containing the transgene in its germline. This founder (G0) bird was mated with wild-type hens to produce transgenic progeny, and 2 transgenic chicks (G1) were produced. In the generated transgenic hens (G2), the hEC-SOD protein was expressed in the egg white and showed antioxidant activity. These results highlight the potential of the chicken for production of biologically active proteins in egg white. [BMB Reports 2013; 46(8): 404-409]
Oviduct-Specific Enhanced Green Fluorescent Protein Expression in Transgenic Chickens
BYUN, Sung June,KIM, Sung Woo,KIM, Kyung-Woon,KIM, Jeom Sun,HWANG, In-Sul,CHUNG, Hee Kyoung,KAN, In Sun,JEON, Ik-Soo,CHANG, Won-Kyoung,PARK, Soo-Bong,YOO, Jae Gyu Japan Society for Bioscience, Biotechnology, and A 2011 Bioscience, biotechnology, and biochemistry Vol.75 No.4
<P>In this study, we confirmed the ability of the 2-kb promoter fragment of the chicken ovalbumin gene to drive tissue-specific expression of a foreign EGFP gene in chickens. Recombinant lentiviruses containing the EGFP gene were injected into the subgerminal cavity of 539 freshly laid embryos (stage X). Subsequently the embryos were incubated to hatch using phases II and III of the surrogate shell <I>ex vivo</I> culture system. Twenty-four chicks (G0) were hatched and screened for EGFP with PCR. Two chicks were identified as transgenic birds (G1), and these founders were mated with wild-type chickens to generate transgenic progeny. In the generated transgenic hens (G2), EGFP was expressed specifically in the tubular gland of the oviduct. These results show the potential of the chicken ovalbumin promoter for the production of biologically active proteins in egg white.</P>
Effects of Leucosporidium Ice-binding Protein on the Cryopreservation of Boar Sperm
Sang Hyoun Park,Keon Bong Oh,Sun-A Ock,Sung June Byun,Hwi-Cheul Lee,Hyeon Yang,Seongsoo Hwang,Gi-Sun Im,Jae-Seok Woo 한국동물생명공학회(구 한국동물번식학회) 2018 발생공학 국제심포지엄 및 학술대회 Vol.2018 No.06
This study was performed to evaluate effects of Leucosporidium ice-binding protein (LeIBP) supplementation on boar (Duroc) sperm freezing. The collected semen was diluted (1.5×10⁸ /mL) in lactose egg yolk (LEY) and cooled at 5°C for 3 h. The cooled semen was then diluted (1×10⁸ /mL) in LeIBP containing LEY with 9% glycerol and maintained at 5°C for 30 min. The semen was divided into six experimental groups (control, 0.001, 0.005, 0.01, 0.05, and 0.1 mg/mL of LeIBP). The straws were stayed above the liquid nitrogen (LN2) vapors for 20 minutes and then plunged into LN2. After thawing, sperm parameters such as motility, viability, and acrosome integrity, intracellular reactive oxygen species (ROS), apoptosis, and undetected lipid peroxidation were determined. Computer assisted sperm analysis was used for sperm parameters and flowcytometry was performed to acrosome integrity (FITC-PSA/PI), ROS (DCFHDA/ PI), lipid peroxidation (BODIPY C11/PI), and apoptosis (Annexin V/PI), respectively. The differences were not in sperm motility, but in viability of 0.05 and 0.1 mg/mL groups compared to control (p<0.05). Higher acrosome integrity was observed in LeIBP groups compared to control (p<0.05), except for 0.001 group. Both ROS and lipid peroxidation level were lower in all LeIBP groups than that of control (p<0.05). Furthermore, lower apoptosis rate was observed in both 0.005 and 0.1 LeIBP groups compared to control (p<0.05). It can be postulated that a supplementation of LeIBP in boar sperm freezing extender is an effective method to increase the sperm qualities after cryopreservation.
The establishment of KORCC (KOrean Renal Cell Carcinoma) database
Byun, Seok-Soo,Hong, Sung Kyu,Lee, Sangchul,Kook, Ha Rim,Lee, Eunsik,Kim, Hyeon Hoe,Kwak, Cheol,Ku, Ja Hyeon,Jeong, Chang Wook,Lee, Ji Youl,Hong, Sung Hoo,Kim, Yong-June,Hwang, Eu Chang,Kwon, Tae Gyun The Korean Urological Association 2016 Investigative and Clinical Urology Vol.48 No.6
<P><B>Purpose</B></P><P>The purpose of this article is to report establishment of the 1st Web-based database (DB) system to collect renal cell carcinoma (RCC) data in Korea.</P><P><B>Materials and Methods</B></P><P>The new Web-based DB system was established to collect basic demographic and clinicopahtological characteristics of a large cohort of patients with RCC in Korea. Data from a total of 6,849 patients were collected from 8 tertiary care hospitals that agreed to participate in organizing the Korean Renal Cell Carcinoma (KORCC) study group as of 1 July 2015. Basic demographic and clinicopathological characteristics were collected. The data of patients who underwent surgical treatments were analyzed to characterize Korean RCC.</P><P><B>Results</B></P><P>We established the 1st Web-based DB of Korean RCC, a database comprising renal mass management cases from multiple centers in Korea. The data of 5,281 patients who underwent surgical management (mean follow-up, 32 months) were analyzed. The most common symptom was incidentally detected renal mass (76.9%). Clinical T1a was the most common (54.3%) stage and mean tumor size was 4.8±4.2 cm. Radical nephrectomy accounted for 62.7% of cases and an open approach was used in 50.7% and 52.2% of radical and partial nephrectomies, respectively. The 5-year overall, cancer-specific and recurrence-free survival rates were 88.1%, 92.2%, and 88.0%, respectively.</P><P><B>Conclusions</B></P><P>We report the 1st establishment of a Web-based DB system to collect RCC data in Korea. This DB system will provide a solid basis for the characterization of Korean RCC.</P>