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Oh SH, Yoon MH, Lim KJ, Yu BS, Jee IG, Jung KT. Nefopam downregulates autophagy and c-Jun N-terminal kinase activity in the regulation of neuropathic pain development following spinal nerve ligation. BMC Anesthesiol 2018; 18:97. [PMID: 30053799 PMCID: PMC6064146 DOI: 10.1186/s12871-018-0559-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 07/13/2018] [Indexed: 02/03/2023] Open
Abstract
Background Neurodegeneration is associated with changes in basal cellular function due to the dysregulation of autophagy. A recent study introduced the involvement of autophagy during spinal nerve ligation (SNL). Nefopam has shown potential for reducing neuropathic pain, but the underlying mechanisms are unknown. Here, we investigated the effects of nefopam on neuropathic pain development following SNL, focusing on the involvement of autophagy. Methods The functional role of nefopam in capsaicin-induced autophagy was assessed by human glioblastoma M059 K cells. The neuropathic pain model was used to determine whether the effect of nefopam on pain control was mediated through autophagy control. Neuropathic pain was induced by L5 and L6 SNL in male rats randomized into three groups: Group S (sham-operated), Group C (received normal saline), and Group E (received nefopam). A behavioral test using a von Frey was examined. Expression changes of autophagy in response to nefopam was analyzed in spinal cord tissues (L4-L6) by immunoblotting and immunohistochemistry. Results The paw withdrawal threshold examined on days 3, 5, 7, and 14 post-SNL was significantly higher in Group E than in Group C. SNL increased the levels of microtubule-associated protein 1 light chain 3B (LC3B-1), with concomitant reduction of sequestosome 1 (SQTSM1/p62), compared with Group S, indicating that SNL induced autophagy. These effects were reversed by nefopam injection, and the results were confirmed by immunohistochemistry for LC3-I/II. Furthermore, SNL-mediated JNK activation was markedly decreased following nefopam injection. Hematoxylin and eosin staining on Day 14 post-SNL revealed that SNL caused lymphocyte infiltration and oligodendrocyte localization in the substantia gelatinosa of the dorsal gray horn, which were reduced by nefopam injection. Conclusion Collectively, the mode of action of nefopam on neuropathic pain appears to be associated with downregulation of phospho-JNK and autophagy, as well as modulation of the immune response.
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Affiliation(s)
- Seon-Hee Oh
- School of Medicine, Chosun University, 309 Pilmundaero, Dong-gu, Gwangju, 501-759, South Korea
| | - Myung Ha Yoon
- Department of Anesthesiology and Pain Medicine, Medical School, Chonnam National University, 42 Jebongro, Donggu, Gwangju, 501-757, South Korea
| | - Kyung Joon Lim
- Department of Anesthesiology and Pain Medicine, School of Medicine, Chosun University, Chosun University Hospital, 365 Pilmun-daero, Dong-gu, Gwangju, 61453, South Korea
| | - Byung Sik Yu
- Department of Anesthesiology and Pain Medicine, School of Medicine, Chosun University, Chosun University Hospital, 365 Pilmun-daero, Dong-gu, Gwangju, 61453, South Korea
| | - In Gook Jee
- Department of Anesthesiology and Pain Medicine, Chosun University Hospital, 365 Pilmun-daero, Dong-gu, Gwangju, 61453, South Korea
| | - Ki Tae Jung
- Department of Anesthesiology and Pain Medicine, School of Medicine, Chosun University, Chosun University Hospital, 365 Pilmun-daero, Dong-gu, Gwangju, 61453, South Korea.
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Jung KT, Kim HJ, Bae HS, Lee HY, Kim SH, So KY, Lim KJ, Yu BS, Jung JD, An TH, Park HC. Effects of lidocaine, ketamine, and remifentanil on withdrawal response of rocuronium. Korean J Anesthesiol 2014; 67:175-80. [PMID: 25302093 PMCID: PMC4188762 DOI: 10.4097/kjae.2014.67.3.175] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 05/09/2014] [Accepted: 06/05/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Rocuronium has been well known to produce withdrawal response in 50-80% patients when administered intravenously. Several drugs are administered prior injection of rocuronium to prevent the withdrawal response. We compared the preventive effect of lidocaine, ketamine, and remifentanil on the withdrawal response of rocuronium. METHODS A total of 120 patients undergoing various elective surgeries were enrolled. Patients were allocated into 4 groups according to the pretreatment drugs (Group N, normal saline; Groups L, lidocaine 40 mg; Group K, ketamine 0.5 mg/kg; Group R, remifentanil 1 µg/kg). Patients received drugs prepared by dilution to 3 ml volume before injection of rocuronium. Withdrawal responses after injection of rocuronium were graded on a 4-point scale. Hemodynamic changes were observed before and after administration of pretreatment drugs and after endotracheal intubation. RESULTS Incidence of withdrawal response was significantly lower in group L (20%), group K (30%), and group R (0%), than group N (87%). Severe withdrawal response was observed in 5 of the 30 patients (17%) in group L, and in 9 of the 30 patients (30%) in group K. There was no severe withdrawal response in group R. Mean blood pressure and heart rate were significantly decreased in group R compared to other groups. CONCLUSIONS It seems that remifentanil (1 µg/kg intravenously) was the strongest and most effective in prevention of withdrawal response after rocuronium injection among the 3 drugs.
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Affiliation(s)
- Ki Tae Jung
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea. ; Department of Anesthesiology and Pain Medicine, Chosun University Hospital, Gwangju, Korea
| | - Hye Ji Kim
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea
| | - Hyo Sung Bae
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea
| | - Hyun Young Lee
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea. ; Department of Anesthesiology and Pain Medicine, Chosun University Hospital, Gwangju, Korea
| | - Sang Hun Kim
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea. ; Department of Anesthesiology and Pain Medicine, Chosun University Hospital, Gwangju, Korea
| | - Keum Young So
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea. ; Department of Anesthesiology and Pain Medicine, Chosun University Hospital, Gwangju, Korea
| | - Kyung Jun Lim
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea. ; Department of Anesthesiology and Pain Medicine, Chosun University Hospital, Gwangju, Korea
| | - Byung Sik Yu
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea. ; Department of Anesthesiology and Pain Medicine, Chosun University Hospital, Gwangju, Korea
| | - Jong Dal Jung
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea. ; Department of Anesthesiology and Pain Medicine, Chosun University Hospital, Gwangju, Korea
| | - Tae Hun An
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea. ; Department of Anesthesiology and Pain Medicine, Chosun University Hospital, Gwangju, Korea
| | - Hong Chan Park
- Department of Anesthesiology and Pain Medicine, Kwangju Christian Hospital, Gwangju, Korea
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Jung JD, Kim SH, Yu BS, Kim HJ. Effects of a preemptive alveolar recruitment strategy on arterial oxygenation during one-lung ventilation with different tidal volumes in patients with normal pulmonary function test. Korean J Anesthesiol 2014; 67:96-102. [PMID: 25237445 PMCID: PMC4166395 DOI: 10.4097/kjae.2014.67.2.96] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 03/19/2014] [Accepted: 05/25/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Hypoxemia during one-lung ventilation (OLV) remains a major concern. The present study compared the effect of alveolar recruitment strategy (ARS) on arterial oxygenation during OLV at varying tidal volumes (Vt) with or without positive end-expiratory pressure (PEEP). METHODS In total, 120 patients undergoing wedge resection by video assisted thoracostomy were randomized into four groups comprising 30 patients each: those administered a 10 ml/kg tidal volume with or without preemptive ARS (Group H and Group H-ARS, respectively) and those administered a 6 ml/kg tidal volume and a 8 cmH2O PEEP with or without preemptive ARS (Group L and Group L-ARS, respectively). ARS was performed using pressure-controlled ventilation with a 40 cmH2O plateau airway pressure and a 15 cmH2O PEEP for at least 10 breaths until OLV began. RESULTS Preemptive ARS significantly improved the PaO2/FiO2 ratio compared to the groups that did not receive ARS (P < 0.05). The H-ARS group showed a highest PaO2/FiO2 ratio during OLV, the L-ARS and H groups showed similarly improved arterial oxygenation, which was significantly higher than in group L (P < 0.05). The plateau airway pressure in group H-ARS was significantly higher than in group L-ARS (P < 0.05). CONCLUSIONS Preemptive ARS can improve arterial oxygenation during OLV. Furthermore, a 6 ml/kg tidal volume combined with 8 cmH2O PEEP after preemptive ARS may reduce the risk of pulmonary injury caused by high tidal volume during one-lung ventilation in patients with normal pulmonary function.
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Affiliation(s)
- Jong Dal Jung
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea. ; Department of Anesthesiology and Pain Medicine, Chosun University Hospital, Gwangju, Korea
| | - Sang Hun Kim
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea. ; Department of Anesthesiology and Pain Medicine, Chosun University Hospital, Gwangju, Korea
| | - Byung Sik Yu
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea. ; Department of Anesthesiology and Pain Medicine, Chosun University Hospital, Gwangju, Korea
| | - Hye Ji Kim
- Department of Anesthesiology and Pain Medicine, Chosun University Hospital, Gwangju, Korea
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Jung KT, Kim SH, Lee HY, Jung JD, Yu BS, Lim KJ, So KY, Lee JY, An TH. Effect on thermoregulatory responses in patients undergoing a tympanoplasty in accordance to the anesthetic techniques during PEEP: a comparison between inhalation anesthesia with desflurane and TIVA. Korean J Anesthesiol 2014; 67:32-7. [PMID: 25097736 PMCID: PMC4121491 DOI: 10.4097/kjae.2014.67.1.32] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Revised: 01/06/2014] [Accepted: 01/09/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND It has been known that positive end-expiratory pressure (PEEP) increases the vasoconstriction threshold by baroreceptor unloading. We compared the effect on the thermoregulatory responses according to anesthetic techniques between an inhalation anesthesia with desflurane and a total intravenous anesthesia (TIVA) with propofol and reminfentanil when PEEP was applied in patients undergoing tympanoplasty. METHODS Forty-six patients with a scheduled tympanoplasty were enrolled and the patients were divided in two study groups. Desflurane was used as an inhalation anesthetic in group 1 (n = 22), while TIVA with propofol and remifentanil was used in group 2 (n = 24). PEEP was applied by 5 cmH2O in both groups and an ambient temperature was maintained at 22-24℃ during surgery. The core temperature and the difference of skin temperature between forearm and fingertip were monitored for about 180 minutes before and after the induction of general anesthesia. RESULTS The final core temperature was significantly higher in group 2 (35.4 ± 0.7℃) than in group 1 (34.9 ± 0.5℃). Peripheral thermoregulatory vasoconstriction was found in 5 subjects (23%) in group 1 and in 21 subjects (88%) in group 2. The time taken for reaching the thermoregulatory vasoconstriction threshold was 151.4 ± 19.7 minutes in group 1 and 88.9 ± 14.4 minutes in group 2. CONCLUSIONS When PEEP will be applied, anesthesia with TIVA may have more advantages in core temperature preservation than an inhalation anesthesia with desflurane.
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Affiliation(s)
- Ki Tae Jung
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea
| | - Sang Hun Kim
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea
| | - Hyun Young Lee
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea
| | - Jong Dal Jung
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea
| | - Byung Sik Yu
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea
| | - Kyung Joon Lim
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea
| | - Keum Young So
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea
| | - Ju Young Lee
- Department of Anesthesiology and Pain Medicine, Chosun University Hospital, Gwangju, Korea
| | - Tae Hun An
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea
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Chang TC, You SJ, Yu BS, Yao KF. A material flow of lithium batteries in Taiwan. J Hazard Mater 2009; 163:910-915. [PMID: 18723278 DOI: 10.1016/j.jhazmat.2008.07.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2008] [Revised: 07/09/2008] [Accepted: 07/09/2008] [Indexed: 05/26/2023]
Abstract
Li batteries, including secondary and cylindrical/button primary Li batteries, are used worldwide in computers, communications and consumer electronics products. However, there are several dangerous issues that occur during the manufacture, shipping, and storage of Li batteries. This study analyzes the material flow of lithium batteries and their valuable heavy metals in Taiwan for the year 2006 by material flow analysis. According to data from the Taiwan Environmental Protection Administration, Taiwan External Trade Development Council, Bureau of Foreign Trade, Directorate General of Customs, and the Li batteries manufactures/importers/exporters. It was found that 2,952,696 kg of Li batteries was input into Taiwan for the year 2006, including 2,256,501 kg of imported Li batteries and 696,195 kg of stock Li batteries in 2005. In addition, 1,113,867 and 572,215 kg of Li batteries was domestically produced and sold abroad, revealing that 3,494,348 kg of different types of Li batteries was sold in Taiwan. Of these domestically sold batteries, 504,663 and 146,557 kg were treated domestically and abroad. Thus, a total of 2,843,128 kg of Li batteries was stored by individual/industry users or illegally disposed. In addition, it was also observed that 2,120,682 kg of heavy metals contained in Li batteries, including Ni, Co, Al, Cu and Ni, was accumulated in Taiwan, with a recycled value of 38.8 million USD. These results suggest that these heavy metals should be recovered by suitable collection, recycling and reuse procedures.
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Affiliation(s)
- T C Chang
- Institute of Environmental Engineering and Management, National Taipei University of Technology, Taipei 106, Taiwan, ROC
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6
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Chang TC, You SJ, Yu BS, Chen CM, Chiu YC. Treating high-mercury-containing lamps using full-scale thermal desorption technology. J Hazard Mater 2009; 162:967-972. [PMID: 18603361 DOI: 10.1016/j.jhazmat.2008.05.129] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2007] [Revised: 05/14/2008] [Accepted: 05/27/2008] [Indexed: 05/26/2023]
Abstract
The mercury content in high-mercury-containing lamps are always between 400 mg/kg and 200,000 mg/kg. This concentration is much higher than the 260 mg/kg lower boundary recommended for the thermal desorption process suggested by the US Resource Conservation and Recovery Act. According to a Taiwan EPA survey, about 4,833,000 cold cathode fluorescent lamps (CCFLs), 486,000 ultraviolet lamps and 25,000 super high pressure mercury lamps (SHPs) have been disposed of in the industrial waste treatment system, producing 80, 92 and 9 kg-mercury/year through domestic treatment, offshore treatment and air emissions, respectively. To deal with this problem we set up a full-scale thermal desorption process to treat and recover the mercury from SHPs, fluorescent tube tailpipes, fluorescent tubes containing mercury-fluorescent powder, and CCFLs containing mercury-fluorescent powder and monitor the use of different pre-heating temperatures and desorption times. The experimental results reveal that the average thermal desorption efficiency of SHPs and fluorescent tube tailpipe were both 99.95%, while the average thermal desorption efficiencies of fluorescent tubes containing mercury-fluorescent powder were between 97% and 99%. In addition, a thermal desorption efficiency of only 69.37-93.39% was obtained after treating the CCFLs containing mercury-fluorescent powder. These differences in thermal desorption efficiency might be due to the complexity of the mercury compounds contained in the lamps. In general, the thermal desorption efficiency of lamps containing mercury-complex compounds increased with higher temperatures.
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Affiliation(s)
- T C Chang
- Institute of Environmental Planning and Management, National Taipei University of Technology, Taipei 106, Taiwan
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7
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Eun SS, An TH, Jung KT, Jung JD, So KY, Yu BS, Lim KJ, Kim SH, Lee HY, Song CH, Shi H, Lin J. The comparison of the relaxant effects of propofol, thiopental, ketamine, and etomidate on isolated rat uterine smooth muscle. Korean J Anesthesiol 2008. [DOI: 10.4097/kjae.2008.55.6.723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Sam Sung Eun
- Eun Sam Sung Plastic and Reconstructive Hospital, Bu-Cheon, Korea
| | - Tae Hun An
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Ki Tae Jung
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Jong Dal Jung
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Keum Young So
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Byung Sik Yu
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Kyung Joon Lim
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Sang Hun Kim
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Hyun Young Lee
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Chang Hoon Song
- Department of Obestetrics and Gynecology, College of Medicine, Chosun University, JB Stem Cell Institute, Inc., Gwangju, Korea
| | - Honglin Shi
- Department of Anesthesiology, Yanjishiyiyuan Hospital, Jilinsheng, China
| | - Ji Lin
- Department of Anesthesiology, Yanjishiyiyuan Hospital, Jilinsheng, China
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8
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Chang TC, You SJ, Yu BS, Kong HW. The fate and management of high mercury-containing lamps from high technology industry. J Hazard Mater 2007; 141:784-92. [PMID: 16979288 DOI: 10.1016/j.jhazmat.2006.07.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2006] [Revised: 06/06/2006] [Accepted: 07/24/2006] [Indexed: 05/11/2023]
Abstract
This study investigated the fate and management of high mercury-contained lamps, such as cold cathode fluorescent lamps (CCFLs), ultraviolet lamps (UV lamps), and super high pressure mercury lamps (SHPs), from high technology industries in Taiwan, using material flow analysis (MFA) method. Several organizations, such as Taiwan Environmental Protection Administration, Taiwan External Trade Development Council, the light sources manufactories, mercury-containing lamps importer, high technology industrial user, and waste mercury-containing lamps treatment facilities were interviewed in this study. According to this survey, the total mercury contained in CCFLs, UV lamps, and SHPs produced in Taiwan or imported from other countries was 886kg in year 2004. Among the various lamps containing mercury, 57kg mercury was exported as primary CCFLs, 7kg mercury was wasted as defective CCFLs, and 820kg mercury was used in the high technology industries, including 463kg mercury contained in exported industrial products using CCFLs as components. On the contrary, only 59kg of mercury was exported, including 57kg in CCFLs and 2kg in UV lamps. It reveals that 364kg mercury was consumed in Taiwan during year 2004. In addition, 140kg of the 364kg mercury contained in lamps used by high technology industry was well treated through industrial waste treatment system. Among the waste mercury from high technology industry, 80kg (57%), 53kg (38%), and 7kg (5%) of mercury were through domestic treatment, offshore treatment, and emission in air, respectively. Unfortunately, 224kg waste mercury was not suitable treated, including 199kg mercury contained in CCFL, which is a component of monitor for personal computer and liquid crystal display television, and 25kg non-treated mercury. Thus, how to recover the mercury from the waste monitors is an important challenge of zero wastage policy in Taiwan.
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Affiliation(s)
- T C Chang
- Institute of Environmental Planning and Management, National Taipei University of Technology, Taipei 106, Taiwan, ROC.
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Lee SJ, So KY, Yu BS. Unilateral Spinal Anesthesia with Hyperbaric Levobupivacaine and Bupivacaine for Lower Limb Surgery. Korean J Anesthesiol 2006. [DOI: 10.4097/kjae.2006.50.5.536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Se Jung Lee
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea
| | - Keum Young So
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea
| | - Byung Sik Yu
- Department of Anesthesiology and Pain Medicine, Chosun University School of Medicine, Gwangju, Korea
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Kim TH, So KY, Yu BS. Comparison of Tramadol and Meperidine for Pain Relief after Tonsillectomy in Children. Korean J Anesthesiol 2005. [DOI: 10.4097/kjae.2005.49.2.172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Tae Hyoung Kim
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Keum Young So
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Byung Sik Yu
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
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Lee JH, Yu BS, Chung CD, An TH. The Effect of Music on Intraoperative Anxiety during Spinal Anesthesia. Korean J Anesthesiol 2004. [DOI: 10.4097/kjae.2004.47.1.38] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Jun Haeng Lee
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Byung Sik Yu
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Chong Dal Chung
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Tae Hun An
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
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12
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Affiliation(s)
- Keum Young So
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Hyung Chul Han
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Chun Sik Kim
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Chong Dal Chung
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Byung Sik Yu
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
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Shi HL, An TH, Chung CD, Yu BS, So KY. The Comparative Effects of Caudal Block and IV Ketorolac on Emergence Delirium after Sevoflurane Anesthesia in Children. Korean J Anesthesiol 2004. [DOI: 10.4097/kjae.2004.47.2.233] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Hong Lin Shi
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Tae Hun An
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Chong Dal Chung
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Byung Sik Yu
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Keum Young So
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
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14
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Ahn YC, Lim KJ, Yu BS, Chung CD. The Analgesic Effects of Epidural Dexamethasone after Simple Lumbar Discectomy. Korean J Anesthesiol 2003. [DOI: 10.4097/kjae.2003.45.1.62] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Yong Cheol Ahn
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Kyung Joon Lim
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Byung Sik Yu
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
| | - Chong Dal Chung
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chosun University, Gwangju, Korea
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15
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Kim SH, Yu BS, Lim KJ, So KY, An TH, Chung CD. A Comparison of the Effect between Intravenous Fentanyl and Interpleural Bupivacaine Following Thoracoscopic Surgery. Korean J Anesthesiol 2002. [DOI: 10.4097/kjae.2002.42.5.620] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Sang Hun Kim
- Department of Anesthesiology, College of Medicine, Chosun University, Gwangju, Korea
| | - Byung Sik Yu
- Department of Anesthesiology, College of Medicine, Chosun University, Gwangju, Korea
| | - Kyung Joon Lim
- Department of Anesthesiology, College of Medicine, Chosun University, Gwangju, Korea
| | - Keum Young So
- Department of Anesthesiology, College of Medicine, Chosun University, Gwangju, Korea
| | - Tae Hun An
- Department of Anesthesiology, College of Medicine, Chosun University, Gwangju, Korea
| | - Chong Dal Chung
- Department of Anesthesiology, College of Medicine, Chosun University, Gwangju, Korea
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16
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Yu BS, Yuan QG, Nie LH, Yao SZ. Ion chromatographic determination of calcium and magnesium cations in human saliva and urine with a piezoelectric detector. J Pharm Biomed Anal 2001; 25:1027-32. [PMID: 11377089 DOI: 10.1016/s0731-7085(01)00378-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In this present paper, simultaneous determination of Ca(2+) and Mg(2+) cations in saliva, urine was achieved using an ion chromatography method, in which a piezoelectric quartz crystal (PQC) sensor was used as a detector, and a solution containing tartaric acid (4 mmol 1(-1)) and ethylenediamine (2 mmol 1(-1)) as a mobile phase. Good linearities were obtained over the ranges of 0.8-500 mg 1(-1) Ca(2+) and 1.0-500 mg 1(-1) Mg(2+). The detection limits were 0.4 mg 1(-1) for Ca and 0.2 mg 1(-1) for Mg, respectively.
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Affiliation(s)
- B S Yu
- Department of Chemistry, Zhanjiang Normal College, Zhanjiang 524048, Guangdong, People's Republic of China.
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17
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Yu BS, Chen P, Nie LH, Yao SZ. Simultaneous determination of nitrate and nitrite in saliva and foodstuffs by non-suppressed ion chromatography with bulk acoustic wave detector. ANAL SCI 2001; 17:495-8. [PMID: 11990564 DOI: 10.2116/analsci.17.495] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In the present paper, nitrate and nitrite in foodstuffs and saliva were simultaneously determined using a non-suppressed ion chromatography (IC) method with a bulk acoustic wave sensor (BAW) as detector, and 1.5 mmol/L potassium hydrogenphthalate (KHP) as mobile phase. The IC-BAW method is simple, rapid and accurate. The determination limits for nitrite and nitrate are 0.20 and 0.30 mg/L, respectively. The IC-BAW is comparable and agrees with the conventional spectrophotometric method for nitrite and nitrate determination.
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Affiliation(s)
- B S Yu
- Department of Chemistry, Zhanjiang Normal College, Guangdong, China
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18
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Lim KJ, Kim HJ, Oh KH, An TH, So KY, Yu BS, Chung CD, Kim SS. The Effects on Pain Relief of Intraarticular Tramadol and Neostigmine after Knee Arthroscopic Surgery. Korean J Anesthesiol 2001. [DOI: 10.4097/kjae.2001.41.4.461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Kyung Joon Lim
- Department of Anesthesiology, College of Medicine, Chosun University, Gwangju, Korea
| | - Hun Jeong Kim
- Department of Anesthesiology, College of Medicine, Chosun University, Gwangju, Korea
| | - Kyung Hee Oh
- Department of Anesthesiology, College of Medicine, Chosun University, Gwangju, Korea
| | - Tae Hun An
- Department of Anesthesiology, College of Medicine, Chosun University, Gwangju, Korea
| | - Keum Young So
- Department of Anesthesiology, College of Medicine, Chosun University, Gwangju, Korea
| | - Byung Sik Yu
- Department of Anesthesiology, College of Medicine, Chosun University, Gwangju, Korea
| | - Chong Dal Chung
- Department of Anesthesiology, College of Medicine, Chosun University, Gwangju, Korea
| | - Seung Soo Kim
- Department of Anesthesiology, College of Medicine, Chosun University, Gwangju, Korea
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19
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Han SY, Chung YH, An TH, Yu BS. One-lung Anesthetic Experience for Video-assisted Thoracoscopic Surgery in Two Children. Korean J Anesthesiol 2001. [DOI: 10.4097/kjae.2001.40.6.824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Seung Yong Han
- Department of Anesthesiology, College of Medicine, Chosun University, Gwangju, Korea
| | - Yong Hun Chung
- Department of Anesthesiology, College of Medicine, Chosun University, Gwangju, Korea
| | - Tae Hun An
- Department of Anesthesiology, College of Medicine, Chosun University, Gwangju, Korea
| | - Byung Sik Yu
- Department of Anesthesiology, College of Medicine, Chosun University, Gwangju, Korea
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20
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Moon SC, Shin JH, Jeong BH, Kim HS, Yu BS, Lee JS, Lee BS, Namgoong SK. Synthesis of tetrakis(multifluoro-4-pyridyl)porphin derivatives as acetylcholinesterase inhibitors. Bioorg Med Chem Lett 2000; 10:1435-8. [PMID: 10888326 DOI: 10.1016/s0960-894x(00)00254-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
New tetrakis(multifluoro-4-pyridyl)porphin derivatives (2-4) and water soluble porphyrin (5) were synthesized to investigate their interactions with acetylcholinesterase from electric eel. These compounds have been found to be the potent reversible inhibitors of the enzyme with Ki values of microM range. In addition, porphyrin (5) showed broad spectrum of anticancer activities.
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Affiliation(s)
- S C Moon
- Department of Chemistry, Seoul National University, South Korea
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21
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Kim BY, Choi HH, Park YB, Yu BS, Oh BS. Video assisted thoracoscopic ligation of patent ductus arteriosus. Technique of sliding loop ligation. J Cardiovasc Surg (Torino) 2000; 41:69-72. [PMID: 10836226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Variant video-assisted thoracoscopic surgical technique for closure of patent ductus arteriosus has been introduced. Although the endoscopic clipping device may be a preferred method for interruption of the patent ductus arteriosus, there is always the risk of inadequate clip placement and limitation of application in width of ductus arteriosus. In an effort to overcome this problem we have used a self-made endoscopic loop ligation in 10 patients and herein report the method. Only a small window and one port of access are necessary to dissect the patent ductus arteriosus from the surrounding tissues and to apply the extracorporeally created sliding loop. Successful ligation without shunt is obtained in all cases. The technique is simple and safe even in the presence of a wide ductus.
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Affiliation(s)
- B Y Kim
- Department of Thoracic and Cardiovascular Surgery, Chosun University, South Korea
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22
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Chung CD, Kim KB, Yu BS, So KY, Lim KJ, Ahn TH, Kim HJ. Postoperative Analgesic Effect of Epidural Neostigmine Coadministered with Bupivacaine under General Anesthesia. Korean J Anesthesiol 2000. [DOI: 10.4097/kjae.2000.39.3.361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Chong Dal Chung
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Kil Beom Kim
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Byung Sik Yu
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Keum Young So
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Kyung Joon Lim
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Tae Hoon Ahn
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Hoon Jung Kim
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
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23
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Kim K, Kim HS, Kim HS, Jeong J, Kil KS, Yu BS. The toxic effect of bile acid on rat liver by bile duct obstruction. J Toxicol Sci 1998; 23 Suppl 4:662-3. [PMID: 9836192 DOI: 10.2131/jts.23.supplementiv_662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- K Kim
- Medial School, Wonkwang University
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24
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Abstract
Synthetic porphin compounds have been found to be reversible inhibitors of acetylcholinesterase from electric eel with Ki values of microM range. It seems that the number and position of fluorine on the phenyl ring and metal of an inhibitor play an important role for binding of an inhibitor to the enzyme active site.
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Affiliation(s)
- B H Lee
- Department of Industrial Chemistry, Taejon National University of Technology, Korea
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25
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Affiliation(s)
- Jong Dal Jung
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Young Tae Park
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Keum Young So
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Byung Sik Yu
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Kil Beom Kim
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
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26
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Su XL, Yu BS, Tan HW, Yang XR, Nie LH, Yao SZ. Flow-injection determination of total ammonia and total carbon dioxide in blood based on gas-diffusion separation and with a bulk acoustic wave impedance sensor. J Pharm Biomed Anal 1998; 16:759-69. [PMID: 9535187 DOI: 10.1016/s0731-7085(97)00108-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A novel flow-injection (FIA) system, for the rapid and direct determination of both total ammonia (T[NH3]) and total carbon dioxide (T[CO2]) in clinical blood samples, has been developed. Samples were injected into a carrier stream of H2O, then emerged with a reagent stream, where the analyte was converted into a gaseous species and diffused across a PTFE gas-permeable membrane into an acceptor stream. The trapped NH3/CO2 in the acceptor was determined on line by a bulk acoustic wave (BAW) impedance sensor. At a through-put of 20 and 65 h(-1), the proposed system exhibited a linear frequency response up to 200 micromol l(-1) ammonium and 20 mmol l(-1) bicarbonate with a detection limit of 1.0 and 10 micromol l(-1), respectively. Results obtained for T(NH3) in serum and T(CO2) in plasma were in agreement with those obtained by the conventional glutamate dehydrogenase (GDH) method and gas-sensing electrode method, respectively. The effects of composition of acceptor stream, cell constant of conductivity electrode, sample volume, flow rate and potential interferents on the FIA signals were also discussed.
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Affiliation(s)
- X L Su
- New Material Research Institute, Chemistry and Chemical Engineering College of Hunan University, Changsha, People's Republic of China
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27
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Choi SY, Chung CD, Lee JT, Yu BS, So KY. The Postoperative Analgesic Effects of Epidural Clonidine during General Anesthesia. Korean J Anesthesiol 1998. [DOI: 10.4097/kjae.1998.35.3.538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- So Yong Choi
- Department of Anesthesiology, Chosun University Medical College, Korea
| | - Chong Dal Chung
- Department of Anesthesiology, Chosun University Medical College, Korea
| | - Jung Tae Lee
- Department of Anesthesiology, Chosun University Medical College, Korea
| | - Byung Sik Yu
- Department of Anesthesiology, Chosun University Medical College, Korea
| | - Keum Young So
- Department of Anesthesiology, Chosun University Medical College, Korea
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28
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Yu BS, Nie LH, Yao SZ. Ion chromatographic study of sodium, potassium and ammonium in human body fluids with bulk acoustic wave detection. J Chromatogr B Biomed Sci Appl 1997; 693:43-9. [PMID: 9200517 DOI: 10.1016/s0378-4347(97)00019-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In the present paper, determination of Na+, K+ and NH4+ in saliva and serum was carried out using an ion chromatography (IC) method with a bulk acoustic wave (BAW) sensor as detector and 2.0 mmol/l nitric acid as mobile phase. The IC-BAW method is simple, rapid and accurate. Comparison between the BAW detector and the conventional conductivity detector (CDD) was discussed. The IC-BAW showed agreement with the commonly used flame photometric method for Na+ and K+ and enzymatic method for NH4+, as well as IC-CDD for those three cations.
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Affiliation(s)
- B S Yu
- Chemistry and Chemical Engineering College, Hunan University, Changsha, China
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29
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Affiliation(s)
- Min Youp Song
- Department of Anesthesiology, College of Medicine, chosun University, Kwang-ju, Korea
| | - Byung Sik Yu
- Department of Anesthesiology, College of Medicine, chosun University, Kwang-ju, Korea
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30
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Park GH, Moon KL, Lim GJ, Cho NS, Yu BS, Chung CD, Kim YI. Effect of Lidocaine on the Prevention of Intravenous Propofol-induced Pain. Korean J Anesthesiol 1995. [DOI: 10.4097/kjae.1995.28.6.785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Gyung Hee Park
- Department of Anesthesiology, Christian Hospital, Youngkwang, Korea
| | - Kyung Lan Moon
- Department of Anesthesiology, Christian Hospital, Youngkwang, Korea
| | - Gyung Joon Lim
- Department of Anesthesiology, Christian Hospital, Youngkwang, Korea
| | - Nam Soo Cho
- Department of Anesthesiology, Christian Hospital, Youngkwang, Korea
| | - Byung Sik Yu
- Department of Anesthesiology, Christian Hospital, Youngkwang, Korea
| | - Chong Dal Chung
- Department of Anesthesiology, Christian Hospital, Youngkwang, Korea
| | - Yong Il Kim
- Department of Anesthesiology, Christian Hospital, Youngkwang, Korea
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31
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Song SY, Lim GJ, Cho NS, Yu BS, Chung CD, Kim YI, So GY. Cardiovascular Changes of Midazolam for Induction of Anesthesia. Korean J Anesthesiol 1994. [DOI: 10.4097/kjae.1994.27.8.909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Seoung Yong Song
- Department of Anesthesiology, Chosun University College of Medicine, Kwangju, Korea
| | - Gyung Joon Lim
- Department of Anesthesiology, Chosun University College of Medicine, Kwangju, Korea
| | - Nam Soo Cho
- Department of Anesthesiology, Chosun University College of Medicine, Kwangju, Korea
| | - Byung Sik Yu
- Department of Anesthesiology, Chosun University College of Medicine, Kwangju, Korea
| | - Chong Dal Chung
- Department of Anesthesiology, Chosun University College of Medicine, Kwangju, Korea
| | - Yong Il Kim
- Department of Anesthesiology, Chosun University College of Medicine, Kwangju, Korea
| | - Geum Young So
- Department of Anesthesiology, Chosun University College of Medicine, Kwangju, Korea
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32
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Kim JH, Lim GJ, Cho NS, Yu BS, Chung CD, Kim YI. Cardiovascular change to endotracheal intubation during anesthetic induction with midazolam-fentanyl. Korean J Anesthesiol 1994. [DOI: 10.4097/kjae.1994.27.5.464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Jae Heung Kim
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Gyung Joon Lim
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Nam Soo Cho
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Byung Sik Yu
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Chong Dal Chung
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Yong Il Kim
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
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33
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Kim MC, Yu BS, Cho NS, Lim GJ, Chung CD, Kim YI. Cardiorespiratory Changes with Benzodiazepine Derivatives during Spinal Anesthesia in Elderly Patients. Korean J Anesthesiol 1993. [DOI: 10.4097/kjae.1993.26.2.314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Min Chool Kim
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Byung Sik Yu
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Nam Soo Cho
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Gyung Joon Lim
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Chong Dal Chung
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Yong Il Kim
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
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34
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An TH, Cho NS, Yu BS, Lim GJ, Chung CD, Kim YI. Clinical Effects of Propofol According to Dosage. Korean J Anesthesiol 1993. [DOI: 10.4097/kjae.1993.26.2.257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Tae Hun An
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Nam Soo Cho
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Byung Sik Yu
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Gyung Joon Lim
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Chong Dal Chung
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Yong Il Kim
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
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35
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Yu BS, Cho NS, Chae JH. Sedative - Analgesic Effect with Diazepam - Fentanyl for Extracorporeal Shock Wave Lithotripsy. Korean J Anesthesiol 1992. [DOI: 10.4097/kjae.1992.25.2.402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Byung Sik Yu
- Department of Anesthesiology, College of Medicine, Chosun University, Kwang Ju, Korea
| | - Nam Soo Cho
- Department of Anesthesiology, College of Medicine, Chosun University, Kwang Ju, Korea
| | - Jong Han Chae
- Department of Anesthesiology, College of Medicine, Chosun University, Kwang Ju, Korea
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36
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Affiliation(s)
- Byung Sik Yu
- Department of Anesthesiology, Chosun University, College of Medicine, Kwangju, Korea
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37
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Lim KJ, Yu BS, Park UJ, Chung CD, Kim YI, Chae CH. Effect of Hyperbaric 0.25 % Bupivacaine for Spinal Anesthesia. Korean J Anesthesiol 1990. [DOI: 10.4097/kjae.1990.23.5.763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Kyung Joon Lim
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Byung Sik Yu
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Un Joo Park
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Chong Dal Chung
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Yong Il Kim
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Chong Han Chae
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
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38
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Kim YK, Yu BS, Park UJ, Chung CD, Kim YI, Chae CH. Comparative Study of Spinal Anesthesia with 0.5 % Isobaric Bupivacaine and Hyperbaric T-caine. Korean J Anesthesiol 1990. [DOI: 10.4097/kjae.1990.23.5.769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Yung Kee Kim
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Byung Sik Yu
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Un Joo Park
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Chong Dal Chung
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Yong Il Kim
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Chong Han Chae
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
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39
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Yu BS, Sohn DH, Goo G. Dynamic properties of interaction between nucleic acid bases and models of amino acids. Biochem Int 1989; 18:189-95. [PMID: 2719711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
We have discussed the possible hydrogen bonding mode of adenine-uracil base dimers and peptide side chains, together with their characteristic effects on the stability of adenine-uracil base pairing in chloroform solution by using proton nuclear magnetic resonance methods, where acetamide and butyric acid were used as a model of residues of glutamine and glutamic acid, respectively, and were added to an adenine-uracil equimolar mixture. The stability of base pairing was affected significantly when the model compounds approached the adenine-uracil base pairs; that is, the Hoogsteen type was destroyed, while the Watson-Crick type was formed more favorably.
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Affiliation(s)
- B S Yu
- Laboratory of Physical Pharmacy, College of Pharmacy, Seoul National University, Korea
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40
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Yu BS. [The fees and charges in the pediatric clinics in the Republic of China]. Zhonghua Min Guo Xiao Er Ke Yi Xue Hui Za Zhi 1988; 29 Suppl A:13A-18A. [PMID: 3273339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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41
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Abstract
In order to develop liposomes for use in an immunoassay system, the preparation of immune liposomes and their characterization have been investigated. Liposomes have potential use in extremely sensitive analytical immunoassays, in addition to serving as an attractive drug delivery system. This liposome immunoassay system is based on membrane immunochemistry and an enzymatic reaction. An intense yellow color, easily detectable with the naked eye, was produced quite rapidly by the lysis of bovine serum albumin (BSA)-labeled, alkaline phosphatase-entrapped liposomes in the presence of anti-BSA rabbit serum and active complement under alkaline conditions. Sensitive detection is possible because of the antigen-antibody complex reaction, which leads to liposome lysis and an enzymatic reaction. The liposome immunoassay method offers a rapid, simple, and sensitive testing procedure which can quantitatively and qualitatively determine the presence or absence of antigenic materials and antibodies.
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Yu BS, Choi YR, Chung CD. The Changes on Liver Function in Patient with HBsAg Postive after General Anesthesia. Korean J Anesthesiol 1987. [DOI: 10.4097/kjae.1987.20.2.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Byung Sik Yu
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Young Ryong Choi
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
| | - Chong Dal Chung
- Department of Anesthesiology, College of Medicine, Chosun University, Kwangju, Korea
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Abstract
Molecular interaction between amphotericin B and sterols in non-aqueous solutions was examined quantitatively by spectroscopic methods in order to support the view point that selectivity of amphotericin B is more pronounced in the presence of ergosterol than of cholesterol. The most likely association complexes between ergosterol and amphotericin B are 4:1, 6:1 stoichiometric complex when the concentrations of amphotericin B are 3.93 x 10(-4) M, 1.94 x 10(-4) M respectively. The presence of 3 beta-OH group is necessary but not enough for the association with amphotericin B. It appears that the extent of spectral change of amphotericin B induced by complexing sterol is greater for ergosterol than cholesterol.
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Affiliation(s)
- M Kito
- Institute for Protein Research, Osaka University, Japan
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Abstract
To elucidate the mode of interaction between purified ginseng saponins and liposomes, the effects of ginseng saponins at concentrations below and above their critical micelle concentration on the osmotic behavior of liposomes were observed. Liposomes composed of egg phosphatidylcholine (PC), phosphatidic acid (PA) and/or cholesterol (Ch) behave as an ideal osmometer and this activity was described by the linear relationship between (1/A450)3/2 and Cin/Cout. Total saponin prepared from the lateral roots of ginseng cultivated in Korea interacted with multilamellar liposomes and prevented them from behaving as an ideal osmometer. 20-S-Protopanaxadiol saponin showed similar activity but 20-s-protopanaxatriol saponin had weak activity. Ginsenoside Rb1 whose genin is 20-S-protopanaxadiol, disturbed osmotic behavior of Ch-free liposomes but not Ch-containing liposomes as monomers and lyzed both liposomes as micelles. Rg1 whose genin is 20-S-protopanaxatriol, showed no activity on liposomes with or without Ch. It can be suggested that ginseng saponins may interact with and destroy liposomal membranes and that structure of sugar moiety is an important factor to their activities. Ch is not a target in this interaction but suppresses the activity of ginseng saponins.
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Abstract
The effect of three sea cucumber saponins, echinoside A, bivittoside D and holothurin A, on multilamellar liposomes was investigated. An ideal osmotic behavior of liposomes was described as a linear relationship between the reciprocal 3/2 s power of absorbance at 450 nm and the osmotic gradient across the membrane. Sea cucumber saponins at concentrations below critical micelle concentration (CMC) disturbed this linear relationship in liposomes composed of egg phosphatidylcholine, phosphatidic acid and cholesterol. Cholesterol-free liposomes were not susceptible to these saponins. Results of optical measurements were consistent with those of transmission electron microscopy, which showed saponin-induced changes in liposomal structure. The lytic activity of sea cucumber saponins on liposomes depended on their chemical structure. These results suggest that sea cucumber saponins as monomers can interact with liposomes and that cholesterol serve as a principal binding site for the sea cucumber saponins.
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Abstract
The interaction of riboflavin-2',3',4',5'-tetrabutyrate (I) with salicylic acid (II), aspirin (acetylsalicylic acid, III), and salicylamide (IV) has been spectroscopically investigated to determine the binding mechanism. NMR and absorption spectra were measured in nonpolar solvents. The association constant K of the formation of complex was calculated from the absorption spectra. Compounds I and II form a 1:1 cyclic hydrogen-bonded dimer through the N-3 proton and the C-2 carbonyl oxygen of the isoalloxazine ring, and the carboxylic hydroxyl proton and carbonyl oxygen of II. Compounds I and III form a 1:1 cyclic hydrogen-bonded dimer by the same mode. Compound IV forms a 1:1 cyclic hydrogen-bonded dimer with I through the N-3 proton and the C-2 carbonyl oxygen of the isoalloxazine ring, and the amino proton and the carbonyl oxygen of IV. Salicylates produce marked changes in the absorption spectra of I. These spectral changes are attributed to the formation of the hydrogen-bonded dimer. It appeared that the strongest complex was formed with salicylic acid, a weaker one with aspirin, and an even weaker one with salicylamide.
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Yu BS, Lee SJ, Chung HH. Interaction between flavins and alcohols. Chem Biol Interact 1982; 41:61-73. [PMID: 6124321 DOI: 10.1016/0009-2797(82)90017-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The effect of alcohols on the spectral properties of riboflavin derivatives in non-polar solvent was studied by various spectroscopic methods in order to support the view point that alcohol may directly interact with the isoalloxazine moiety of FAD and enhance the catalytic activity of D-amino acid oxidase (DAAO). The most likely association complex between alcohol and riboflavin is 1 : 1 stoichiometric complex through the 3-N imino and the 2-C carbonyl groups of the isoalloxazine ring and the hydroxyl group of alcohols. It appears that methanol has a larger association constant than any other alcohols, and the association constant decreases with the increase in carbon number and with the steric requirement of the alkyl group of alcohols.
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Kyogoku Y, Yu BS, Akutsu H, Watanabe M, Kawano K. Stereospecific binding of triostin A to nucleic acid purine base derivatives. Biochem Biophys Res Commun 1978; 83:172-9. [PMID: 697806 DOI: 10.1016/0006-291x(78)90413-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Kyogoku Y, Yu BS. Specific association of riboflavin and adenine derivatives in chloroform solution and the effect of barbiturates on the association. Bull Chem Soc Jpn 1969; 42:1387-93. [PMID: 5803707 DOI: 10.1246/bcsj.42.1387] [Citation(s) in RCA: 33] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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