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Hydrodeoxygenation of oleic acid over Ce<SUB>(1-x)</SUB>Zr<SUB>(x)</SUB>O<SUB>2</SUB> solid solution
Jae-Oh Shim,Dae-Woon Jeong,Won-Jun Jang,Kyung-Won Jeon,Won-Bi Han,Hyun-Suk Na,Hak-Min Kim,Hyun-Seog Roh,Jeong-Geol Na,You-Kwan Oh,Chang Hyun Ko,Sang Sub Han 한국신재생에너지학회 2013 한국신재생에너지학회 학술대회논문집 Vol.2013 No.05
Case Report : Crohn`s Disease in a Patient Undergoing Hemodialysis Caused by IgA Nephropathy
Bi Ro Kim,Jae Won Yang,Joung Wook Choi,Young Sub Kim,Jong Myeong Yu,Seung Ok Choi,Byoung Geun Han 대한신장학회 2009 Kidney Research and Clinical Practice Vol.28 No.5
IgA nephropathy is usually localized to the kidney, however, it can accompany systemic disease, including gastrointestinal disease, skin disease, connective tissue disease, and malignant tumor. In some patients with IgA nephropathy which manifested as an extraintestinal symptom of Crohn`s disease, recovery of renal function was achieved following treatment of Crohn`s disease. The pathophysiology of each disease remains unclear. According to some studies, however, immunological, genetic, and environmental factors may be involved in a complex manner. In patients receiving renal replacement therapy for treatment of renal dysfunction due to IgA nephropathy, occurrence of Crohn`s disease as an extrarenal symptom has not been reported. We experienced a case of Crohn`s disease which developed in a patient receiving hemodialysis for treatment of end-stage renal disease due to IgA nephropathy.
( Jae Won Yang ),( Min Soo Kim ),( Jae Seok Kim ),( Jong Myoung Yoo ),( Seung Tae Han ),( Bi Ro Kim ),( Yun Deok Kim ),( Jeong Wook Choi ),( Seung Ok Choi ),( Byoung Geun Han ) 대한내과학회 2008 The Korean Journal of Internal Medicine Vol.23 No.4
Background/Aims: Brain natriuretic peptide (BNP) levels are known to be elevated in patients with chronic kidney disease (CKD) and normal heart function. Therefore, the present study was performed to examine the effectiveness of BNP level in diagnosing heart failure in patients with CKD and to determine its effects on survival rate and prognosis. Method: A total of 182 patients with CKD who visited the hospital due to dyspnea of NYHA class II were included in the study. BNP levels were measured and echocardiography was performed to divide the subjects into groups with and without heart failure. Their BNP levels, clinical courses, and survival rates were analyzed retrospectively. Results: When BNP level was ≥858.5 pg/mL in CKD patients, heart failure could be diagnosed with sensitivity and specificity of 77% and 72%, respectively. Survival rate of the group with BNP levels of ≥858.8 pg/mL was significantly lower than that of the group with BNP level below this threshold (p=0.012) and multivariate analysis showed that BNP level, age, and sex affected survival rate in the group with BNP level ≥858.8 pg/mL. Conclusions: BNP levels of patients with CKD showed a positive correlation with creatinine levels, and the critical point of BNP level for diagnosis of heart failure was 858.5 pg/mL. As the survival rate in patients with BNP level above the critical point was significantly low, this level was a useful indicator for predicting their prognosis. Care should be taken in interpreting BNP level because patients with stage 5 CKD may show a high concentration of BNP without heart failure.
Eun Bi Han,Se In Park,Won Jin Lee,Do Hyeong Kim,Su Hui An,Hyojin Lee,Soon Hyun Cho,Sung Kwon Ko,Byung Wook Yang 한국식품영양과학회 2021 한국식품영양과학회 학술대회발표집 Vol.2021 No.10
Lavender (Lavandula angustifolia Mill.) is a perennial, medicinal and aromatic plant that is native to the Mediterranean region and has been widely cultivated in the world. This study was conducted in order to establish the extraction conditions with the Lavender for development of a functional cosmetic ingredients, which is controlling the skin aging. The dried powder prepared by the extract were optimized using the response surface methodology (RSM). The extraction conditions were based on the central composite design, with 15 kinds of variations in the extraction temperature (50-90℃), extraction time (6-24 hrs), and ethanol concentration (0-100%). The rosmarinic acid contents were significantly higher at 90℃ for 12 hrs with a 70% ethanol concentration. In this condition, the biological activities such as tyrosinase inhibitory activities and elastase inhibitory activities were excellent. The optimum extraction yield was predicted at an extraction temperature of 89.02℃, 11.79 hrs of extraction time and determined the value of 26.233% (wt/wt) with a 65.72% ethanol concentration, respectively.