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정지용,윤나라,강대웅,오종찬,장재현,선길홍,박경희,정종훈,김현리 朝鮮大學校 附設 醫學硏究所 2005 The Medical Journal of Chosun University Vol.30 No.1
Aplastic anemia is a disease characterized by pancytopenia in the peripheral blood and hypocellular bone marrow with the fatty infiltration. The causes of the acquired aplastic anemia were usually related to drugs and immune-related diseases. A 34-years old man was admitted due to general weakness. He has been going hemodialysis for 2 years because of end stage renal disease (ESRD) due to chronic glomerulonephritis. At admission, laboratory tests showed hemoglobin 6.2 g/dL, hematocrit 18.0 %, WBC 5,710mm (neutrophil 71.8%, lymphocyte 19.1%, monocyte 5.9%), reticulocyte 1.9%, platelet 93,000/mm, Fe 12.8 ug/dL, TIBC 204 ug/dL, ferritin 941.47 ng /ml, haptoglobin 0.72 g/L, vitamin B12 508.17 pmol/L, folate 24 ng/mL, total protein 6.54 g/dL, albumin 3.76 g/dL, Alk. pohsphatase 79 IU/L, AST 30.0 IU/L, ALT 39.7 IU/L, total bilirubin 0.57 mg/dl, BUN 79.4 mg/dl and creatinine 10.18 mg/dl. Peripheral blood smear showed the normocytic normochromic anemia with anisocytosis. Anemia was diagnosed but it was irresponsive to the recombinant human erythropoietin (EPO) and blood transfusion. In the bone marrow aspiration smear were there the hypoplastic myeloid and erythroid precursors. The bone marrow biopsy section showed the hypoplasia of all components (10-20%) and the fatty infiltration. We have experienced one case of the idiopathic aplastic anemia in a patient going through hemodialysis and we just report it with documentary records. 저자들은 혈액 투석 중인 환자에서 약물, 면역계 이상등의 원인을 발견할 수 없었음에도 재생 불량성 빈혈이 발생한 1예를 경험하여 문헌 고찰과 함께 보고하는 바이다.
강대웅,정지용,윤나라,안치용,김종오,신병철,정종훈,김현리 朝鮮大學校 附設 醫學硏究所 2006 The Medical Journal of Chosun University Vol.31 No.2
Background: Some cases of QT interval, corrected QT interval (QTc), QT dispersion (QTd) and corrected QT dispersion (QTcd) have been reported in ESRD, but these results are variable and the influence of a hemodialysis is still controversial, In this study, we investigated the effect of hemodialysis on QT and QTc interval and QT and QTc dispersion in patients with ESRD 15 min before and 15 minute after each hemodialysis. Methods: Sixty-seven patients with ESRD (men 33 & women 34) on three-times stable hemodialysis (>3 months) were randomly enrolled. Fifty control subjects with a similar age and normal renal function were enrolled from this hospital. Routine biochemical studies were measured pre- and post dialysis, at the time of the ECG. Plasma Na+, K+, BUN, creatinine, ionized calcium and phosphate were checked. Twelve-lead electrocardiographs were performed at 10㎜/mv and 50㎜/s using a HewIett-Packard Pagewriter 100, before and after a single hemodialysis session.The QT interval was measured from the onset of the QRS complex to the end of the T wave. If the end of the T wave was not clear in a particular lead then it was excluded from analysis. When U waves were present, the end of the T wave was taken as the nadir between the T and U waves. Each QT interval was corrected for heart rate using Bazett's formula (QTc==QT/√(RR)) (ms). The difference between maximal and minimal QT interval duration was defined as QT dispersion (QTd) in each of the 12 leads. Result: This study demonstrates that QT, QTd, QTcd is higher in hemodialysis patients compared with control subjects, and QT and QTd rise postdialysis to levels comparable to those seen acutely following myocardial infarction, when patients are at greatly increased risk of potentially fatal ventricular arrhythmias, Conclusions: QT interval and QT dispersion, markers of risk for arrhythmias and sudden death, are elevated in hemodialysis patients, and rise postdialysis. QT interval and QT dispersion is an easily obtainable, noninvasive, simple, inexpensive, and widely available method of risk stratification in uremic patients receiving chronic dialysis. Additional studies are needed to clarity whether increased postdialysis QT dispersion results in an increased occurrence of arrhythmias.
혈액투석중인 말기신부전 환자에서 Fludrocortisone acetate (FCA) 투여 후 혈청 칼륨 저하 효과
류봉관,강대웅,정지용,윤나라,신병철,박경희,정종훈,김현리 朝鮮大學校 附設 醫學硏究所 2005 The Medical Journal of Chosun University Vol.30 No.1
Background: Hyperkalemia is a commonly encountered problem in dialysis patients with end-stage renal disease. In this study we evaluated the effect of mineralocorticoid therapy (fludrocortisono acetate) on serum potassium level in the serum of hyperkalemic end-stage renal disease patients. Methods: Fourteen patients on hemodialysis receiving fludrocortisone acetate (FCA) 0.1 mg/day were observed for 2 months periods. Consecutive monthly biochemical profiles were compared for the druration of the pre-and post-treatment of FCA. Result: Fourteen patients with mean age (±SE) of 51.5 years (4 males and 10 females) and mean hemodialysis period of 51.9 months were studied. Mean serum potassium levels significantly fell (p<0.05) during the post-FCA period (5.2±0.66 mEq/L) compared with potassium levels during the pre-FCA (5.8±0.43 mEq/L) period. Pre-and post-FCA values were not different for sodium, chloride, protein, albumin, AST/ALT, glucose, blood nitrogen, creatinine, phosphate and calcium. Conclusions: FCA appears to decrease serum potassium value in patients with end-stage renal disease. These results suggested that FCA could be effective to treat hyperkalemia without any adverse effect in patients undergoing hemodialysis.
Jeong Na Ra,Kim Min Jee,Park Jeong Sun,Jeong Su Yeon,Kim Iksoo 한국응용곤충학회 2021 Journal of Asia-Pacific Entomology Vol.24 No.4
Conogethes punctiferalis Guenée, 1854 (Lepidoptera: Crambidae) is a serious polyphagous pest that attacks more than one hundred species of plants. Previously, C. punctiferalis was determined to be composed of two ecotypes; later, Conogethes pinicolalis, was described as a separate species. Due to the prolonged negligence of C. pinicolalis as an independent species, the genetic perspective of the two species is limited. Thus, in this study, 15,332 and 15,336 bp-long complete mitochondrial genome (mitogenome) of the two species were sequenced and compared to each other and to 54 available mitogenomes of Pyraloidea. The comparison of each protein-coding gene (PCG) and rRNA gene of the two congeneric species showed substantial sequence divergence, ranging from 3.13% (ATP8) to 8.3% (COIII), with an average of 5.92%. Phylogenetic analyses using concatenated sequences of 13 PCGs and 2 rRNAs (12,458 bp including gaps), both by maximum likelihood (ML) and Bayesian inference (BI) methods, consistently supported the monophyly of each family (Crambidae and Pyralidae) and subfamily, generally with the highest nodal supports. The subfamilial relationships of ((((Acentropinae + Schoenobiinae) + (Scopariinae + Crambinae)) + Evergestinae) + (Spilomelinae + Pyraustinae)) in Crambidae and the subfamilial relationships of ((((Pyralinae + Epipaschiinae) + Phycitinae) + Galleriilinae)) in Pyralidae were obtained in both analyses. However, nodal supports were substantially low in this study, mainly due to limited taxa.
Na Ra Jeong,Seung Won Han,Kwang Jin Kim,Jung Nam Suh,Ji Hye Yoon 인간식물환경학회 2018 인간식물환경학회지 Vol.21 No.2
This study aimed to investigate the perception of community gardens by urban citizens, who are the potential end-users and to establish baseline data to be used in the planning of community gardens. The study was conducted by surveying 200 people living in metropolitan area and 140 people living in non-metropolitan area from October 7 to October 10, 2016. The surveyed urban residents agree that community gardens are necessary, although there is a slight difference in their perception depending on the type of housing and residential area. More specifically, residents who have seen gardens and those that have experience in gardening strongly support for the need of community gardens. Community gardens should primarily satisfy both comfort and aesthetic functions. The surveyed residents focused on the function of the garden to improve personal satisfaction and quality of life. In addition, they expect personal benefits such as physical and psychological health promotion; and public benefits such as increased amenity and community vitalization from the creation of community gardens. Residents were strongly willing to participate in the planning, construction and management of community gardens. Therefore, community gardens should be designed to improve the living environments, prevent crime, provide leisurely space, promote physical and mental health, and provide visual pleasure. These will effectively improve the quality of life of urban residents and contribute to the revitalization of the community.