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복합부위통증증후군 환자에서 성상신경절 차단술 후 발생한 미각의 변화 −증례 보고−
박정욱,조윤경,조경은,박형규,강은영,이성훈 대한재활의학회 2010 Annals of Rehabilitation Medicine Vol.34 No.3
Some reports provide conclusive evidence of close interactive regulation between the taste receptor and sympathetic nervous system. We report a middle-aged male patient with gustatory change after cervical sympathetic ganglion block (CSGB) who had been suffering from hypersensitivity to sour taste since developing complex regional pain syndrome (CRPS) type 1, diagnosed according to the revised CRPS criteria. Despite receiving two high doses of prednisolone therapy, he experienced the recurrence of CRPS symptoms. We attempted other therapy treatments, including pamidronate intravenous infusion, non-steroidal anti-inflammatory drugs, opioids, tricyclic antidepressants, and CSGB. Following each CSGB administration, the patient reported decreased hypersensitivity to sour-tasting foods, such as kimchi and oranges, with decreased pain and reduction of dysautonomic symptoms. This case demonstrates that overactivation of the sympathetic nervous system may influence sensitivity and regulation of gustatory receptors; therefore, a patient demonstrating CRPS symptoms, including taste alterations, may respond positively to CSGB therapy. (J Korean Acad Rehab Med 2010; 34: 368-371)
Pt/γ-Alumina/Cordierite 비드형 세라믹 폼 필터의 NOx 제거 특성
박정욱,박제현,박재구 한국대기환경학회 2007 한국대기환경학회지 Vol.23 No.3
Porous cordierite beads, of which the average pore size was 130m and porosity was about 80%, were preparedγ-alumina catalyst for NOx reduction withpropene was investigated. The pressure drop of a 2 mm porous beads lter was less than that of a 1 mm porousbeads lter and the difference in pressure drop between these two increased as the ow rate increased. The catalyticactivity of Pt/γ-alumina washcoated on the porous bead was tested with varying Pt loading (0.005~ 0.1 g/cm3),C3H6/NO mole ratio (0.5~ 8), space velocity (20,000~ 30,000 h-1) and oxygen contents (1 and 8). Pt loading of0.04 g/cm3 showed the highest activity for NOx conversion. The De-NOx test was operated in the temperature rangeof 200~ 400 C. As the C/N ratio increased,increase of the NOx conversion might result from the increase in exhaustion of the amount of oxygen by the reduc-tion of hydrocarbon. NOx conversion at 20,000 h-1 of space velocity shows a maximum 34% higher conversionthan that at 30,000 h-1. On condition that O2 was 5%, space velocity was 20,000 h-1 and the C/N ratio was 8, theNOx conversion exhibited a maximum of 40% at 250C.