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방향족 폴리에스터 폴리올을 이용한 폴리우레탄 분산체의 합성과 특성에 관한 연구
주훈관,조항규,노시태,강신춘,안재범 한국공업화학회 2004 응용화학 Vol.8 No.1
Aromatic polyurethane dispersions were synthesized with dimethylolpropionic acid (DMPA), isophorone diisocyanate(IPDI), and aromatic polyester polyol, prepared chemical reaction of esterification and polycondensation, The structures of these polyurethanes were characterized by FT0IR, H-NMR, and the properties were measured with DSC, TGA. Increase aromatic polyol contents made of unplasticized polyurethane dispersions. As the aromatic structures in polyurethane dispersions introduced, glass transition temperature(T_(g)) and thermal stability increased. In this polyurethane dispersions increased with DMPA concentrations, particle size decreased and dispersible stability increased and T_(g) increased over 50℃.
양극성 정동장애와 혈청 Inositol-1-phosphatase 활성도 변화
조현주,김영철,우행원,연규월,조기승 대한생물치료정신의학회 1998 생물치료정신의학 Vol.4 No.2
Objects : Several lines of possibilites have been oroposed about the etiology of bipolar attective disorder in biological, genetic and psychosocial aspect. The purpose of this study is to inspect the etiology of bipolar affective disorder in biological aspect by measuring the changes of serum inositol-1-phosphatase activity and investing a causal relationship between clinical symptoms and serum inositol-1-phosphatase activities in patients with bipolar affective disorder. Methods : The subjects were 18 inpatients who met DSM-IV diagnostic criteria for bipolar I affective disorder, manic episode and 15 normal controls. Inositol-1-phosphatase activities were measured in serum by using spectrophotometer. Clinical symptoms of patients were assessed by YMRS at admission day and after 2 weeks lithium treatment. Results : 1) Inositol-1-phosphatase activities of the patients were increased to about 2 times as compared with those of normal controls. And the activity levels were decreased gradually to the normal at 14 days. 2) Young's Mania Rating Scale(YMRS) scores were decreased significantly by lithium treatment. 3) Statistical significance could not be found between the change of YMRS scores and the levels of inositol-1-phosphatase activity. Conclusion : In this study, statistical significance could not be found between clinical improvement and inositol-1-phosphatase activities, but the fact that lithium treatment improve the clinical manifestation shown by YMRS score changes, and reverse the increased inositol-1-phosphatase activities suggests the strong association between pathophysiology of bipolar affective disorders and inositide metabolism.
한대희,김성구,박상호,김성한,조원영,방덕원,조윤행,정의룡,은영근,권영구 순천향의학연구소 2003 Journal of Soonchunhyang Medical Science Vol.9 No.1
Background : Patients with chronic renal fialure have a substantially elevated risk of death from cardiovascular diseases than do the general population. the patients with chronic renal failure are at significantly increased freqeuncy of hypertension, hyperlipidemia, and diabetes mellitus which are known to the risk factors of the coronary artery diseases, and the prevalence of the coronary artery diseases in chronic renal failure patients is highly associated with the hemodynamic disorder and metabolic abnormalities. therefore we expected that the coronary angiographic findings in patients with chronic renal failure should be different from the general population (control groups) and investigated the risk factors contributing to coronary artery diseases. Method : we have retrospectively compared the coronary angiographic findings of 44 patients with chronic renal failure on hemodialysis with that of 88 patients in the general population and investigated the factors contributing to the development and acceleration of coronary artery diseases in patients with chronic renal failure Result : Hypertension and diabetes mellitus which is risk factors for coronary artery disease is significantly increased in patients with chronic renal failure, in coronary angiographic finding the severity of the lesion is worse. the incidence of PCI or CABG of patients with chronic renal failure is more than that of control group but statistically no difference between patients with chronic renal failure and control group. the sex, the duration of disease, the duration of dialysis, serum creatinine in patients with chronic renal failure have no correlation to the prevalence of coronary artery disease and severity of lesion. hyperglycemic patients with chronic renal failure have high incidence of coronary artery disease and are worse in the severity of lesion Conclusions : There is significantly increased the pevalence and severity of involving multiple coronary artery diseses in hyperglycemic patients with CRF.
서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)
김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1
In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.
Splenic Infarction Caused by Vivax Malaria
Cho, Hang Joo,Kim, Ki Hwan,Kim, Ji Il,Ahn, Chang Hyuck,Yoo, Seung Jin,Lim, Keun Woo,Kim, Jeung Soo 대한외과학회 2008 Annals of Surgical Treatment and Research Vol.75 No.3
Splenic infarction caused by malaria is a rare complication and this is mostly caused by plasmodium falciparum. We report here on a 38 year-old female patient who developed symptomatic splenic infarction that was caused by vivax malaria. She presented with fever and left upper quadrant pain. Computed tomography showed multiple low density areas in the spleen, and the peripheral blood smear revealed plasmodium vivax infestation. We examined for other causes of splenic infarction, but all were negative. This is just the second report of symptomatic splenic infarction that was caused by vivax malaria only. Unlike the previous case, the levels of D-dimer and fibrinogen degradation factor were elevated. This may be related with the hypercoagulable state caused by malaria. Treatment was conservative and the further course was uneventful.