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Hwang, Hye Jeon,Kim, Kyoung Won,Jeong, Woo Kyoung,Song, Gi-Won,Ko, Gi-Young,Sung, Kyu Bo,Shin, Yong Moon,Kim, Pyo Nyun,Ha, Tae-Yong,Moon, Deok-Bog,Kim, Ki-Hun,Ahn, Chul-Soo,Hwang, Shin,Lee, Sung-Gyu Radiological Society of North America 2009 Radiology Vol.253 No.2
<P>PURPOSE: To establish optimal Doppler ultrasonographic (US) venous pulsatility index and computed tomographic (CT) criteria for right hepatic vein (RHV) stenosis after living donor liver transplantation (LDLT) and to compare accuracies of these methods by using receiver operating characteristic (ROC) analysis. MATERIALS AND METHODS: This retrospective study was approved by an institutional review board; informed consent was waived. Eighty patients (48 men, 32 women; mean age, 51.5 years +/- 9.2 [standard deviation]) underwent Doppler US and CT within 8 days of hepatic venography following right lobe LDLT between October 2006 and September 2008. At venography, RHVs were classified into a stenosis or nonstenosis group. At Doppler US, venous pulsatility index was defined as the difference between maximum and minimum frequency shifts divided by maximum frequency shift. At CT, diameters of anastomosis and RHV were measured; percentage of stenosis was calculated. Mean Doppler US and CT parameters in the two groups were compared; ROC analysis was performed. RESULTS: There were 30 stenotic and 50 nonstenotic RHVs. Mean venous pulsatility index and mean anastomosis diameter were significantly lower and mean percentage of stenosis was significantly higher in the stenosis than the nonstenosis group (P < .001 each). Optimal cutoffs for venous pulsatility index, anastomosis diameter, and percentage of stenosis were 0.16, 3.7 mm, and 47%, respectively. Sensitivity and specificity were 86.7% and 68.0% for venous pulsatility index, 96.7% and 88.0% for anastomosis diameter, and 96.7% and 86.0% for percentage of stenosis, respectively. At ROC analysis, anastomosis diameter (P = .002) and percentage of stenosis (P = .003) were significantly more accurate than venous pulsatility index. CONCLUSION: CT is more accurate than Doppler US for RHV stenosis after LDLT, with venous pulsatility index as the sole sonographic criterion. Patients suspected of having RHV stenosis at Doppler US may benefit from CT to reduce unnecessary venography.</P>
Sex Ratio Determination by Quantitative Real Time PCR using Amelogenin Gene in Porcine Sperm
Hwang, You-Jin,Bae, Mun-Sook,Yang, Jae-Hun,Kim, Bo-Kyoung,Kim, Sang-Ok,Lee, Eun-Soo,Choi, Sun-Gyu,Kwon, Ye-Ri,Seo, Min-Hae,Park, Choon-Keun 韓國受精卵移植學會 2009 한국동물생명공학회지 Vol.24 No.3
Sex-sorting of sperm is an assisted reproductive technology (ART) used by the livestock industry for the mass production of animals of a desired sex. The standard method for sorting sperm is the detection of DNA content differences between X and Y chromosome-bearing sperm by flow cytometry. However, this method has variable efficiency and therefore requires verification by a second method. We have developed a sex determination method based on quantitative real-time polymerase chain reaction (qPCR) of the porcine amelogenin (AMEL) gene. The AMEL gene is present on both the X and the Y chromosome, but the length and sequence of its noncoding regions differ between the X and Y chromosomes. By measuring the threshold cycle (Ct) of qPCR, we were able to calculate the relative frequency of X chromosome. Two sets of AMEL primers were used in these studies. One set (AME) targeted AMEL gene sequences present in both X and Y chromosome, but produced PCR products of different lengths for each chromosome. The other set (AXR) bound to AMEL gene sequences present on the X chromosome but absent esholthe Y-chromosome. Relative product levels were calculated by normalizing the AXR fluorescence to the AME fluorescence. The AMEL method accurately predicted the sex ratios of boar sperm, demonstrating that it has potential value as a sex determination method.
( Bo Hye Kim ),( Hee Kyung Kim ),( Hye Jeong Cho ),( So Dam Hong ),( Jae Kyoung Shin ),( Hee Jin Hong ),( Sae Ahm Kim ),( Hak Su Kim ),( Suk Pyo Shin ),( Ha Na Park ),( Seong Gyu Hwang ),( Kyu Sung Ri 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1
Background: Pyogenic liver abscess is the most common type of visceral abscess with a mortality rate of 10% to 25%. The mortality of liver abscess markedly decreased due to the improvement of diagnostic methods, antibiotics and other treatment modalities. We describe the clinical feature, changing trends of etiology and poor prognostic factors of pyogenic liver abscess during the recent 2 decades. Methods: We retrospectively reviewed the medical records of patients with pyogenic liver abscess who were treated in CHA Bundang Medical Center between 1996 and 2014. The period was divided into period 1 (1996-2004) and period 2 (2005-2014). We compare these two groups in age, etiology, etc. Results: 148 patients were indentifi ed. 60 patients were included period 1 and 86 patients were included period 2. There were no signifi cant interval changes in symptom, sign, number and size of abscess and laboratory fi nding between the two periods. The average age increased in period 2 (aged 62. 7) relative to period 1 (aged 57. 2) (P=0. 001). Klebsiella pneumoniae was the most common pathogen both two periods. The most common infection route was biliary tract (45. 5%) in period 1 and cyptogenic cause (53. 8%) in period 2 (P=0. 042). Interestingly, the percentage of hepatobiliary malignacy in etiology increased from 4. 5% in Period 1 to 10. 2% in period 2. (P= 0. 03) Liver abscess originated from hepatobiliary problem showed a higher recurrent rate (P=0. 018). Conclusions:The average age of patients with pyogenic liver abscess has increased substantially and the predominant pathogen originates from the biliary tract because biliary procedures has increased. Hepatobiliary malignancy is the major risk factor and poor prognostic factor for pyogenic liver abscess. Therefore early diagnosis and close observation is important for patients with biliary problem or hepatobiliary malignancy.
Bo Kyoung Choi,Soo Hyun Yang,Kang Hum Suh,Jin Ah Hwang,Moon Hyung Lee,Won keun Si,Ji Ho Kim 전남대학교 의과학연구소 2011 전남의대학술지 Vol.47 No.3
Portal vein thrombosis (PVT) is a rare form of venous thrombosis that affects the hepatic portal vein flow, which can lead to portal hypertension. Treatment of PVT includes anticoagulants,thrombolysis, insertion of shunts, bypass surgery, and liver transplantation. Single anticoagulation therapy is not regarded as a curative treatment but can be associated with a reduction in new thrombotic episodes. We experienced a case of acute total occlusion of PVT provoked by protein C and S deficiency syndrome. PVT was completely recanalized with oral anticoagulant therapy following low molecular weight heparin therapy.
Hwang, Kyoung-Sub,Lee, Jin-Ju,Jeon, Young-Chan,Shin, Sang-Hun,Song, Jae-Min,Lee, So-Hyoun,Huh, Jung-Bo Korean Academy of Dental Science 2017 Journal of korean dental science Vol.10 No.1
In case of loss of many teeth due to dental caries or periodontal disease, improvement of masticatory function and aesthetics can be obtained through implant treatment. However, if the patient does not have a normal intercondylar relationship, it is difficult to achieve an ideal occlusal relationship with only prosthetic treatment. In particular, oral reconstruction with orthodontic treatment or orthognathic surgery is necessary for patients with mandibular prognathism. However, if the posterior occlusion collapses due to severe caries or periodontal disease, orthognathic surgery may be difficult. The occlusal vertical stop is very important for the stability of the mandibular position during occlusal reconstruction through orthognathic surgery. The patient in this case had posterior occlusion collapsed due to the caries of a large number of posterior teeth, and showed mandibular prognathism and long face. We planned a full arch restoration with orthognathic surgery and extracted the hopeless teeth. To secure the vertical stop required for orthognathic surgery, the implant was placed before surgery. After the orthognathic surgery and the final prosthesis application, the results were satisfactory for the improvement of the aesthetics and the restoration of the masticatory function.
태권도 행정기관 직원의 경력계획, 프로틴 경력태도 및 주관적 경력성공의 구조관계
황보선(Hwang, Bo-Seon),정경회(Jung, Kyoung-Hoi),유광길(Yu, Kwang-Kil) 한국체육과학회 2020 한국체육과학회지 Vol.29 No.2
This study was to explore the relationship among the career planning, protean career attitude and subjective career success in administrative staffs of Taekwondo institution. The survey was conducted on the administrative staffs of the Taekwondo institution(Kukkiwon, Taekwondo Promotion Foundation, Korea Taekwondo Association, World Taekwondo Federation). Except for twenty six questionnaires, final 214 out of 240 ones was statistically managed and SPSS 21.0 and LISREL 8.80 were used for statistical analysis. The result of this research was as follows. First, the career planning of the Taekwondo institution’ staffs are significant to protean career attitude of the administrative staffs. Second, the career planning of the Taekwondo institution’ staffs are significant to subjective career success of administrative staffs. Third, the protean career attitude of the Taekwondo institution’ staffs are significant to subjective career success of administrative staffs.