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WOO, HYUNG JIK,NGUYEN, ANH D.,JANG, KUEM HEE,CHOI, EUN HWA,RYU, SHI HYUN,HWANG, UI WOOK Magnolia Press 2017 Zootaxa Vol.4329 No.6
<P>The millipede Anaulaciulus koreanus (Verhoeff, 1937), belonging to the family Julidae, is an endemic species of the Korean fauna. In this study, we sequence and annotate the mitochondrial genome of A. koreanus. The complete mitochondrial genome of this species is 14,916 bp in length and contains 13 protein-coding genes, 22 transfer RNA genes, two ribosomal RNA genes (16S and 12S rRNA), and a large non-coding region. The genome has a very high A+T content (71.1%), less than of the species Brachycybe lecontii Wood, 1864 (order Platydesmida; 76.6%) and Sphaerotheriidae sp. (order Sphaerotheriida; 71.2%). In comparison with the mitochondrial gene arrangement of eight other millipede species, the whole mitochondrial gene arrangement of A. koreanus is most similar to the nemasomatid species, Antrokoreana gracilipes Verhoeff, 1938, but differs from those of the other diplopod orders. The absence of tRNACys between the ND2 and COI regions is unique to the order Polydesmida, whereas the translocation of tRNATyr to between ND2 and COI is exclusive to the Sphaerotheriida. It is also shown that the translocation of tRNAThr between ND4L and ND1 may be a synapomorphy to support a close relationship of two orders Spirobolida and Spirostreptida. </P>
The Changes of Renal Function in Apparent Healthy Individuals with a Simple Renal Cyst
( Hyung Suk Lee ),( Seong Gyun Kim ),( Eun Jung Kim ),( Young Rim Song ),( Soo Jin Kim ),( Ji Eun Oh ),( Young Ki Lee ),( Jang Won Seo ),( Jong Woo Yoon ),( Ja Ryong Koo ),( Jung Woo Noh ),( Hyung Jik 대한신장학회 2007 Kidney Research and Clinical Practice Vol.26 No.5
Purpose : Simple cysts are a common structural abnormality in seemingly healthy individuals, but their clinical significance, especially on changes of renal function, remains unknown. We examined whether sporadic cysts can influence changes of renal function in apparent healthy individuals. Methods : The records from 424 people who underwent two ultrasonographic examinations in a routine check-up at our health promotion center from 2000 to 2003 were reviewed. Patients who had a medical disease were excluded. The healthy individuals (n=199) were divided into two groups according to whether they had renal cysts (cyst group, n=61), or not (control group, n=138). Renal function was evaluated by serum creatinine level (Scr), creatinine clearance (Ccr), using the Cockcroft-Gault equation, and glomerular filtration rate (GFR), using the MDRD equation. Results : Individuals in the cyst group were significantly older (44.18±7.55, 41.02±7.06, p=0.013) and more likely to be male (90.16%, 72.46%, p=0.006) than those without cysts. Compared with the control group, the cyst group had no significant differences in Scr (1.03±0.15 mg/dL, 1.08±0.11 mg/dL, respectively, p=0.06), in Ccr (82.34±13.26 ml/min, 81.00±12.6 ml/min, respectively, p=0.56) nor in GFR (84.35±11.65 ml/min/1.73m2, 82.47±10.27 ml/min/1.73m2, respectively, p=0.38). Furthermore, the parameters for changes of renal function were not significant over three years. Conclusions : The presence of renal cysts was associated with neither renal dysfunction nor a reduction in renal function over three years in Korean individuals without apparent renal disease.
혈액투석 중인 말기 신질환 환자에서 대사성 산증과 칼슘대사 장애의 연관성
한성우(Sung Woo Han),박우정(Woo Jung Park),현상훈(Sang Hoon Hyun),구자룡(Ja Ryoung Koo),전노원(Ro Won Chun),김형직(Hyung Jik Kim),채동완(Dong Wan Chae),노정우(Jung Woo Noh),김근호(Gheun Ho Kim) 대한내과학회 2000 대한내과학회지 Vol.58 No.4
Background: Mild metabolic acidosis is frequently found among the stable patients treated with maintenance hemodialysis. However, its clinical effects have yet to be clarified. This study was undertaken to estimate the prevalence of metabolic acidosis in the patients undergoing chronic hemodialysis and to evaluate the clinical significance of metabolic acidosis, especially in relation to calcium metabolism. Methods: In 124 patients undergoing maintenance hemodialysis, analysis of arterial blood gas and measurement of various biochemical markers and parathyroid hormone were carried out with predialysis blood obtained from arterial side of arteriovenous fistula. Results: Ninety two patients(74.2%) had metabolic acidosis. Their arterial pH was 7.32±0.01, arterial bicarbonate concentration 17.1±0.3 mEq/L, and PaCO2 33.1±0.5 mmHg. The patients with metabolic acidosis showed a lower calcium(7.90±0.16 vs. 8.68±0.17 mg/dL, p<0.05), and higher phosphorus(4.96±0.16 vs. 3.68±0.39 mg/dL, p<0.05), alkaline phosphatase(233.6±22.7 vs. 145.9±13.7 U/L, p<0.05) and parathyroid hormone(176.5±23.7 vs. 52.8±14.4 pg/mL, p<0.05) levels compared to those with normal acid-base balance. In the patients with metabolic acidosis, PaCO2 level showed a positive correlation with arterial bicarbonate concentration(r=0.62, p<0.001). The lower arterial bicarbonate was, the higher serum potassium(r=-0.24, p<0.05), phosphorus(r=-0.42, p<0.001) and anion gap(r=-0.28, p<0.01) were. When the patients were divided into two groups according to the dialysate buffer used, the lower calcium-acetate group showed lower total calcium(7.28±0.25 vs. 7.96±0.17 mg/dL, p<0.05) and ionized calcium(0.85±0.05 vs. 1.08±0.04 mmol/L, p<0.05) levels and higher alkaline phosphatase(457.1±170.2 vs. 209.4±15.9, p<0.05) and parathyroid hormone (364.4±83.7 vs. 155.4±23.6 pg/mL, p<0.05) levels compared to the higher calcium-bicarbonate group. Conclusion: Current hemodialytic practice is less than ideal, as evidenced by a high prevalence of metabolic acidosis. The metabolic acidosis in maintenance hemodialysis is associated with abnormal calcium metabolism, suggesting that a more aggressive correction of metabolic acidosis may be required by individualizing dialysis prescription.(Korean J Med 58:420-429, 2000)
오형직,성기원,성우현,박영섭,이재수,최창락 대한신경외과학회 1990 Journal of Korean neurosurgical society Vol.19 No.6
A case of neurenteric cyst within the cervical canal is reported. He has been suffered from gradual aggrevated quardriparesis since 4 months. On spine C-T scan and cervical myelographic examimnation, intradural extramedullary mass was detected. And so total laminectomy of C₄, C_(5) and C_(6) was performed. We could diagnose by the pathological findings.
정형우(Hyung-Woo Jung),김민회(Min-Huei Kim),송현직(Hyun-Jik Song),김동희(Dong-Hee Kim) 한국조명·전기설비학회 2013 조명·전기설비학회논문지 Vol.27 No.9
This paper propose a improved operating characteristics of the 5-phase 5kW within developed the surface permanent mount synchronous generator (SPMSG) in order to make a study of a polyphase ac motors keeping hold of more advantages. The developed manufacturing motor was necessary to do improvement of voltage regulation, efficiency, operating characteristics, and so on at the rated load. There are remake a redesigned and distributed stator winding connection without changing the frames of stator and rotor core in previous established generator by a repeat tests. There are shown a amplitude and waveform of the generated electromotive force, FFT analysis of harmonics within output voltages, and reviewing a experiment results in load of resistive and 5-phase induction motor by variable generator output frequency.