1.Evaluation of D-Phenylalanyl-L-prolyl-L-arginine Chloromethyl Ketone(PPACK) as an Alternative Anticoagulant to Heparin Salts for Analysis of ionized Calcium, Blood Gas, Electrolytes.
Kyeong Seob SHIN ; Won Seon HAN ; Bo Ra SON ; Do Hoon LEE
Korean Journal of Clinical Pathology 1997;17(6):1002-1011
BACKGROUND: Heparin salts induce negative proportional bias according to anticoagulant concentration for analysis of ionized calcium (iCa) However, D-phenylalanyl -L-prolyl- L-arginine chloromethyl ketone (PPACK), a selective thrombin inhibitor, do not bind to ionized calcium. Therefore, we evaluated PPACK as an alternative anticoagulant to lithium heparin (Li-Hep) for analysis of ira, blood gases and electrolytes. METHODS: The concentration of iCa in whole blood anticoagulated with heparin was compared with that in serum of patients admitted to Chungbuk National University Hospital (n=27). The blood gases, electrolytes and iCa according to each anticoagulant concentration (Ll-Hep or PFACK) were analyzed. The concentrations of anticoagulated whole blood (Li-Hep; 50 kIU/L, PPACK ; 75 mumol/L) were compared with those of nonanticoagulated whole blood for blood gases, electrolytes and iCa (n=17), RESULTS: The results were as follows; whole blood anticoagulated with Li-Hep demonstrated -0.28+/-0.15 mmol/L (26.6%) bias for ira compared with serum. No bias according to each anticoagulated concentrations were observed in analysis of blood gases, potassium and chloride. Negative proportional bias for iCa and sodium in serum anticoagulated with Li-HeP was observed. In comparison, no bias for ira and sodium was observed with PPACK. No bias was observed in analysis of blood gas or electrolytes with each anticoagulated whole blood except for sodium and chloride that had clinically nonsignificant bias. Whole blood anticoagulated with Li-Hep demonstrated a consistent -0.08+/-0.02 mmol/L (6.3%) bias for ira compared with nonanticoagulated whole blood. In comparison, no bias was observed with PPACK-anticoagulated whole blood for iCa. CONCLUSIONS: We concluded that PPACK is an ideal anticoagulant without bias for analysis of iCa, blood gases and electrolytes.
Arginine
;
Bias (Epidemiology)
;
Calcium*
;
Chungcheongbuk-do
;
Electrolytes*
;
Gases
;
Heparin*
;
Humans
;
Lithium
;
Potassium
;
Salts*
;
Sodium
;
Thrombin
2.A Patient with "Rebound Methemoglobinemia" during Treatment of Methemoglobinemia Caused by Propanil Intoxication.
Kyeong Hoon SEON ; Yong Jin PARK ; Soo Hyung CHO
Journal of the Korean Society of Emergency Medicine 2013;24(6):775-779
Methemoglobinemia results from the oxidation of ferrous iron (Fe++) to ferric iron (Fe+++) within hemoglobin. It is caused by various etiologies, including the herbicide Propanil. Patients with low levels of methemoglobin (metHb) are asymptomatic but symptomatic patients and patients with high levels of metHb require treatment. Methylene blue is the first choice for the treatment of methemoblobinemia, but has some complications such as hemolytic anemia and rebound methemoglobinemia. We report the case of a 91-year-old woman who died of aniline herbicides poisoning. The level of metHb in her blood was initially 20.7% and her mental status was drowsy. She was intravenously treated with methylene blue within a therapeutic range for methemoglobinemia. After treatment with methylene blue, the level of metHb decreased but later increased above 20%. Methylene blue treatment was repeatedly attempted, but the patient suffered from hemolytic anemia and rebound methemoglobinemia. The patient finally died from renal failure and cardiopulmonary collapse. We must be careful because methemoglobinemia can occur even when treated pesticides such as propranil.
Anemia, Hemolytic
;
Female
;
Herbicides
;
Humans
;
Iron
;
Methemoglobin
;
Methemoglobinemia*
;
Methylene Blue
;
Pesticides
;
Poisoning
;
Propanil*
;
Renal Insufficiency
3.A Case of Small Bowel Obstruction and Perforation by Anisakiasis.
Dae Heung YOON ; Hee Bong LEE ; Kyeong Hoon SEON ; Soo Hyung CHO
Journal of the Korean Society of Emergency Medicine 2013;24(2):246-249
Anisakiasis is a disease that often occurs after the ingestion of raw marine fish infected with nematodes of the Anisakis genus. Ingested Anisakis causes a variety of symptoms, including abdominal pain, nausea, and vomiting, when they invade the gastric wall. Although invasion of the gastric wall is common, rare cases of Anisakis invading the small bowel have been reported. These rare cases have resulted in small bowel obstruction and perforation and usually require surgical treatment. A 57-year-old man visited the emergency room suffering from abdominal pain and distension. He ate raw marine fish three days prior and suffered from epigastrium pain a day after this meal. X-ray and computed tomography showed small bowel obstruction without adhesion and required an operation for treatment. A laparotomy revealed dilated and congested jejunum and ileum with perforated distal ileum. We found a small thin long worm, confirmed by histopathology as a member of Anisakis. The patient was discharged after surgery without any complication.
Abdominal Pain
;
Anisakiasis
;
Anisakis
;
Eating
;
Emergencies
;
Estrogens, Conjugated (USP)
;
Humans
;
Ileum
;
Intestine, Small
;
Jejunum
;
Laparotomy
;
Meals
;
Nausea
;
Stress, Psychological
;
Vomiting
4.Characteristics of Ambivalence of Self-image in Patients with Schizophrenia.
Byung Hoon KIM ; Yu Bin SHIN ; Sunghyon KYEONG ; Seon Koo LEE ; Eun Joo KIM ; Jae Jin KIM
Korean Journal of Schizophrenia Research 2016;19(1):5-9
OBJECTIVES: Ambivalence of self-image is considered to be important in patients with schizophrenia since impairment of self-referential processing and increment in ambivalence are illness-related symptoms. This study aimed to evaluate quantitative and qualitative properties of ambivalence of self-image in patients with schizophrenia. METHODS: Twenty patients with schizophrenia and 20 normal controls performed a set of 'self-image reflection task' and then the level of ambivalence towards actual and ideal self-image were numerically scored. Ambivalence scores were compared between groups and correlation analyses with psychometric scales were done in each group. RESULTS: Patients with schizophrenia had higher level of ambivalence towards both actual and ideal self-image (p<0.001). Normal controls showed significant correlations with the scales representing level of self-concept clarity (r=-0.480, p=0.033), depression (r=0.479, p=0.033), and self-esteem (r=-0.555, p=0.011 ; R=-0.600, p=0.005) while the patients did not. CONCLUSION: Ambivalence towards one's self-image is more intense in patients with schizophrenia. This symptom may be considered to exist as an independent symptom in schizophrenia.
Depression
;
Humans
;
Psychometrics
;
Schizophrenia*
;
Weights and Measures
5.A study of geriatric inpatients.
Seon Wook KANG ; Kyung Min HAN ; Kyeong Yeol KIM ; Chang Hoon CHOI ; Eun Su KU ; Chul Yung BAE ; Dong Hak SHIN
Journal of the Korean Academy of Family Medicine 1993;14(11):715-724
No abstract available.
Humans
;
Inpatients*
6.Spontaneous Femoral Artery Pseudoaneurysm Rupture in Systemic Lupus Erythematosus Patient.
Kyeong Hoon SEON ; Tae Ho YOO ; Sang In JEONG ; Seo Jin KIM ; Sun Pyo KIM
Journal of the Korean Society of Emergency Medicine 2014;25(4):480-483
Femoral artery pseudoaneurysm, a very uncommon disease, is usually reported trauma, iatrogenic vascular intervention, and nail fixation in the treatment of fracture. The femoral artery is a major vessel for blood supply to the lower extremities. If the femoral artery is injured, the patient will experience cardiovascular collapse and hypovolemic shock due to massive hemorrhage. We report on the case of a 49-year-old male patient who had been diagnosed with systemic lupus erythematosus (SLE), who was admitted to our hospital with progressive swelling of the right thigh without any trauma history. A computed tomographic scan with arterial enhancement showed a large pseudoaneurysm of the right femoral artery, which was then treated successfully with great saphenous vein graft surgery.
Aneurysm
;
Aneurysm, False*
;
Femoral Artery*
;
Hemorrhage
;
Humans
;
Lower Extremity
;
Lupus Erythematosus, Systemic*
;
Male
;
Middle Aged
;
Rupture*
;
Saphenous Vein
;
Shock
;
Thigh
;
Transplants
7.Neural Basis of Ambivalence towards Ideal Self-Image in Schizophrenia
Byung-Hoon KIM ; Yu-Bin SHIN ; Sunghyon KYEONG ; Seon-Koo LEE ; Jae-Jin KIM
Psychiatry Investigation 2020;17(5):452-459
Objective:
Little has been explored about a reflection towards self-image in schizophrenia, though it can be related to heterogeneous symptoms of the illness. We identified the neural basis of ambivalence towards ideal self-image in patients with schizophrenia.
Methods:
20 patients with schizophrenia and 20 healthy controls underwent functional MRI while the self-image reflection tasks of determining whether to agree with sentences describing their actual or ideal self-image that contained one of the adjective pairs with opposite valence. The interaction between the group and ideal ambivalence score was examined, and group differences in functional connectivity related to ambivalence towards ideal self-image were further studied.
Results:
The interaction of group-by-ideal ambivalence score was shown in the dorsal anterior cingulate cortex and dorsolateral prefrontal cortex, where activities were positively correlated with the level of ideal self-image ambivalence in patients, but not in controls. Task-related decrease in functional connectivity was shown between the orbitofrontal cortex and cerebellum in patients.
Conclusion
The process of reflecting on ambivalent ideal self-image in schizophrenia may be related to aberrant prefrontal activity and connectivity. Abnormality in the prefrontal regions that take part in cognitive conflict monitoring and value judgment may underlie the pathophysiology of increased ambivalence towards ideal self-image.
8.Argutinic acid, A New Triterpenoid from the Fruits of Actinidia arguta
Se Hwan RYU ; Jong Hoon AHN ; Ayman TURK ; Seon Beom KIM ; Bang Yeon HWANG ; Mi Kyeong LEE
Natural Product Sciences 2024;30(3):208-211
Actinidia arguta, also called as kiwiberry or hardy kiwifruit, is one of the major varieties of kiwi plants. It is small in size and has no hairs on the surface, which making it easy to be consumed. In addition, it can be cultivated in Asia, due to its cold resistance. We have been interested in the beneficial effects of the fruits of A. arguta and investigated the constituents and biological activities. A new triterpenoid, argutinic acid, along with three triterpenoids and three megastigmines were isolated from the fruits of A. arguta. The structures were determined by spectroscopic analysis including NMR, MS, UV and IR. Among the isolated compounds, two triterpenes, argutinic acid (1) and usrolic acid (4) showed α-glucosidase inhibitory activities.
9.Argutinic acid, A New Triterpenoid from the Fruits of Actinidia arguta
Se Hwan RYU ; Jong Hoon AHN ; Ayman TURK ; Seon Beom KIM ; Bang Yeon HWANG ; Mi Kyeong LEE
Natural Product Sciences 2024;30(3):208-211
Actinidia arguta, also called as kiwiberry or hardy kiwifruit, is one of the major varieties of kiwi plants. It is small in size and has no hairs on the surface, which making it easy to be consumed. In addition, it can be cultivated in Asia, due to its cold resistance. We have been interested in the beneficial effects of the fruits of A. arguta and investigated the constituents and biological activities. A new triterpenoid, argutinic acid, along with three triterpenoids and three megastigmines were isolated from the fruits of A. arguta. The structures were determined by spectroscopic analysis including NMR, MS, UV and IR. Among the isolated compounds, two triterpenes, argutinic acid (1) and usrolic acid (4) showed α-glucosidase inhibitory activities.
10.Argutinic acid, A New Triterpenoid from the Fruits of Actinidia arguta
Se Hwan RYU ; Jong Hoon AHN ; Ayman TURK ; Seon Beom KIM ; Bang Yeon HWANG ; Mi Kyeong LEE
Natural Product Sciences 2024;30(3):208-211
Actinidia arguta, also called as kiwiberry or hardy kiwifruit, is one of the major varieties of kiwi plants. It is small in size and has no hairs on the surface, which making it easy to be consumed. In addition, it can be cultivated in Asia, due to its cold resistance. We have been interested in the beneficial effects of the fruits of A. arguta and investigated the constituents and biological activities. A new triterpenoid, argutinic acid, along with three triterpenoids and three megastigmines were isolated from the fruits of A. arguta. The structures were determined by spectroscopic analysis including NMR, MS, UV and IR. Among the isolated compounds, two triterpenes, argutinic acid (1) and usrolic acid (4) showed α-glucosidase inhibitory activities.