Fat Embolism is a rare complication of multiple long bone fracture or extensive soft tissue injury. The pathogenesis of fat embolism has been poorly understood and still its definite pathogenesis, diagnosis and treatment were not fully established. Recently fat embolism considered as a post traumatic respiratory failure. Monitoring of blood gas is required for early diagnosis and respiratory supportive treatment with continued minitoring is necessary until resolution. Fifteen cases of fat embolism treated at from September 1979 to October 1981 Eul Ji General Hospital were clinically analized. Among the fifteen cases, fourteen were recovered without sequalae and one was expired ten days after trauma.
Diagnosis ; Early Diagnosis ; Embolism, Fat ; Fractures, Bone ; Hospitals, General ; Respiratory Insufficiency ; Soft Tissue Injuries

OBJECTIVES: Considering large diversity of clinical presentation of schizophrenia, it is important to identify valid clinical subtypes or dimensions that might have homogeneous biological underpinning. The current study aimed to explore lifetime symptom-based dimensional phenotypes in patients with chronic schizophrenia, and to investigate their correlation with cognitive functions and other clinical characteristics. METHODS: Lifetime-based symptoms and additional clinical variables were measured using the Diagnostic Interview for Genetic Studies and the Schedule for the Deficit Syndrome in 315 clinically stable patients with chronic schizophrenia. Through principal components factor analysis, eight dimensional phenotypes were obtained. Comprehensive neuropsychological tests were administered for 103 out of 315 patients, and domain scores were calculated for cognitive domains defined in the MATRICS consensus battery. RESULTS: 'Non-paranoid delusion factor' including delusions of grandiose or religious nature, showed significant negative correlation with processing speed, working memory, attention/vigilance, and general cognitive ability, and positive correlation with intra-individual variability. 'Negative symptom factor' showed significant negative correlation only with general cognitive ability. Those two factors were also negatively correlated with function levels measured by Global Assessment Scale (GAS), and associated with poor treatment responses. CONCLUSION: Symptom-based dimensional phenotypes of schizophrenia measured on a lifetime basis showed discriminative correlation with cognitive function domains, global functioning level, and overall treatment responses, indicating their possibility as valid phenotype axes of schizophrenia having homogeneous biologic basis.
Appointments and Schedules ; Cognition ; Consensus ; Delusions ; Humans ; Memory, Short-Term ; Neuropsychological Tests ; Phenotype ; Schizophrenia*

Heterotopic pancreas is an aberrant pancreatic tissue that lacks anatomic and vascular continuity with the main pancreas. Although heterotopic pancreas is a relatively rare entity and usually noted as an incidentel findings at autopsy and during surgery for other causes, it is capable of producing symptoms depending on the site and size of lesions as well as various pathological changes occuring in the pancreas itself. We have recently experienced a case of heterotopic pancreas on the mid-body of posterior wall along the lesser curvatrue of stomach in a 30-year-old man, who visited our hospital for the evaluation of postprandial epigastric discomfort and indigestion for two months. Gastrofiberoscopy revealed a 3x4 cm sized submucosal mass, and subtotal gastrectomy gastrojejunostomy was performed and he was discharged without any postoative complication.
Adult ; Autopsy ; Dyspepsia ; Gastrectomy ; Gastric Bypass ; Humans ; Pancreas* ; Stomach

Beta-lapachone (beta-Lap; 3,4-dihydro-2, 2-dimethyl-2H-naphthol[1, 2-b]pyran-5,6-dione) is a novel anti-cancer drug under phase I/II clinical trials. beta-Lap has been demonstrated to cause apoptotic and necrotic death in a variety of human cancer cells in vitro and in vivo. The mechanisms underlying the beta-Lap toxicity against cancer cells has been controversial. The most recent view is that beta-Lap, which is a quinone compound, undergoes two-electron reduction to hydroquinone form utilizing NAD(P)H or NADH as electron source. This two-electron reduction of beta-Lap is mediated by NAD(P)H:quinone oxidoreductase (NQO1), which is known to mediate the reduction of many quinone compounds. The hydroquinone forms of beta-Lap then spontaneously oxidizes back to the original oxidized beta-Lap, creating futile cycling between the oxidized and reduced forms of beta-Lap. It is proposed that the futile recycling between oxidized and reduced forms of beta-Lap leads to two distinct cell death pathways. First one is that the two-electron reduced beta-Lap is converted first to one-electron reduced beta-Lap, i.e., semiquinone beta-Lap (SQ).- causing production of reactive oxygen species (ROS), which then causes apoptotic cell death. The second mechanism is that severe depletion of NAD(P)H and NADH as a result of futile cycling between the quinone and hydroquinone forms of beta-Lap causes severe disturbance in cellular metabolism leading to apoptosis and necrosis. The relative importance of the aforementioned two mechanisms, i.e., generation of ROS or depletion of NAD(P)H/NADH, may vary depending on cell type and environment. Importantly, the NQO1 level in cancer cells has been found to be higher than that in normal cells indicating that beta-Lap may be preferentially toxic to cancer cells relative to non-cancer cells. The cellular level of NQO1 has been found to be significantly increased by divergent physical and chemical stresses including ionizing radiation. Recent reports clearly demonstrated that beta-Lap and ionizing radiation kill cancer cells in a synergistic manner. Indications are that irradiation of cancer cells causes long-lasting elevation of NQO1, thereby sensitizing the cells to beta-Lap. In addition, beta-Lap has been shown to inhibit the repair of sublethal radiation damage. Treating experimental tumors growing in the legs of mice with irradiation and intraperitoneal injection of beta-Lap suppressed the growth of the tumors in a manner more than additive. Collectively, beta-Lap is a potentially useful anti-cancer drug, particularly in combination with radiotherapy.
Animals ; Apoptosis ; Benzoquinones ; Cell Death ; Electrons ; Humans ; Hydroquinones ; Injections, Intraperitoneal ; Leg ; Mice ; NAD ; Naphthoquinones ; Necrosis ; Radiation Tolerance ; Radiation, Ionizing ; Reactive Oxygen Species ; Recycling ; Substrate Cycling

BACKGROUND: A major pathway leading toward neuronal injury following ischemia-reperfusion of the brain involves elevation of extracellular glutamate and activation of glutamate receptors, with a subsequent increase in intracellular calcium, resulting in a generation of free radicals. Oxygen free radicals cause brain injury following resuscitation from cardiac arrest. Oxyradicals produce strand breakage in DNA, which triggers energy-consuming DNA repair mechanisms and activates the nuclear enzyme poly(ADP-ribose) synthetase(PARS). However, excessive PARS activation leads to energy depletion and exacerbation of neuronal damage in cerebral ischemia. METHODS: We investigated the effect of a potent, free-radical scavenger, N-acetylcysteine(NAC), on hippocampal neuronal death in an asphyxial cardiac arrest model of rats. The effect of NAC on hippocampal neuronal death was studied in 32 rats which were subjected to asphyxial cardiac arrest for 7 minutes, followed by resuscitation. The animals were divided into four group(8 rats in each group) as follows: Group I was saline treated for 3 days, Group II was NAC treated for 3 days, Group III was saline treated for 6 days, and Group IV was NAC treated for 6 days. In the NAC-treated groups, NAC(150 mg/kg) was intravenously injected after return of spontaneous circulation. The coronal sections with hippocampus levels were stained with hematoxylin-eosin(H-E) and PARS antibodies at 3 and 6 days after survival. In addition, the levels of myeloperoxidase(MPO) and malondialdehyde(MDA) were determined in the brains of each group. RESULTS: The results are as follows: 1. MPO and MDA levels were significantly lower in the NAC-treated groups, II and IV, than in the saline-treated groups, I and III. 2. The histologic damage score(HDS), as determined by H-E staining, was significantly lower in the NAC-treated groups, II and IV, than in the saline-treated groups, I and III. 3. In PARS immunohistochemical staining, the HDS was significantly lower in the NAC-treated groups, II and IV, than in the saline-treated groups, I and III. CONCLUSION: These results suggest that a free-radical scavenger, N-acetylcysteine, may effectively prevent neuronal damages after reperfusion from asphyxial cardiac arrest in rats. Further studies will be required to examine both the mechanism of the action and the clinical application of NAC in patients with cardiac arrest.
Acetylcysteine* ; Animals ; Antibodies ; Brain ; Brain Injuries ; Brain Ischemia ; Calcium ; DNA ; DNA Repair ; Free Radicals ; Glutamic Acid ; Heart Arrest* ; Hippocampus ; Humans ; Neurons ; Neuroprotective Agents* ; Oxygen ; Poly Adenosine Diphosphate Ribose ; Rats* ; Receptors, Glutamate ; Reperfusion ; Reperfusion Injury ; Resuscitation

No abstract available.
Animals ; Epithelium* ; Gene Expression* ; Laser Capture Microdissection* ; Mice* ; Microarray Analysis* ; Phenobarbital*

No abstract available.
Follow-Up Studies* ; Pneumonectomy*

OBJECTIVE: The personality traits are substantially heritable, and therefore very likely result from the interplay of genetic variations with environmental influences. Recently, there is a growing enthusiasm for biological approaches to personality, especially genetic research on identifying responsible genes. So, the aim of this study is to investigate the associations between serotonin transporter promoter linked region (5-HTTLRP) polymorphism and personality traits. METHODS: We recruited unrelated normal 114 female subjects. The Korean version of temperament and character inventory (TCI) were used to assess personality traits. From the blood, DNA was isolated using standard techniques and the 5-HTTLPR polymorphism was genotyped by polymerase chain reaction and electrophoresis. We classified the subject as s/s, s/l, and l/l group according to their genotype. The differences of TCI scores between l allele non-carrier group (s/s genotype) and l allele carrier group (s/l+l/l genotype) were tested after inclusion of age as covariate in the analysis of variance (ANCOVA). RESULTS: Under the control of age, there were no associations between harm avoidance, novelty seeking, reward dependence, cooperativeness, and self-transcendence scores and genotypes. But, persistence and self-directedness score of l allele non-carrier group was significantly higher than that of l allele carrier group. CONCLUSION: The 5-HTTLPR polymorphism may be associated with persistence and self-directedness score of TCI in normal Korean female population.
Alleles ; DNA ; Electrophoresis ; Female* ; Genetic Research ; Genetic Variation ; Genotype ; Humans ; Polymerase Chain Reaction ; Promoter Regions, Genetic* ; Reward ; Serotonin Plasma Membrane Transport Proteins* ; Serotonin* ; Temperament

No abstract available.
Chickens* ; Yolk Sac*

BACKGROUND: We assessed the accuracy of staging in evaluation of bronchial invasion thus found the role of CT in patients who underwent resective surgery in primary lung cancer. Materials and METHODS: Authors retrospectively analized the preoperative CT scans of 156 patients receiving pneumonectomy(n=95) and lobectomy(n=61). Among lobectomy patients 7 patients subsequently performed pneumonectomy because of positive resection margin of bronchus in frozen biopsy. We also retrospect lively analized CT scans of non-operated 60 patients who Performed sufficient bronchoscopic biopsy. Bronchial wall thickness more than 3mm, irregular wall thickening find reduction of diameter by CT were defined as bronchial invasion. The pathologic examination of resection margin were positive in 20, stump recurrence occurred in 6 of the operated group, and the pathologic examination of biopsy of bronchial wall were positive in 34 of the non operated group, and these were all regarded as bronchial invasion. RESULTS: The CT assessment of bronchial invasion revealed low sensitivity (11.5%), low positive predictability(38%), but high specificity(96%) and relatively high accuracy (84%) in the operated group and higher sensitivity (62%), higher positive predictability(95%) in non-operated group. CONCLUSION: In lung cancer patients who underwent operation CT showed very low sensitivity and positive predictability In evaluation of bronchial invasion Because the usefulness of CT in evaluation of bronchial invasion is limited, therefore aggressive fiberoptic bronchoscopic biopsy is thought to be necessary before surgical attempt.
Biopsy ; Bronchi ; Humans ; Lung Neoplasms* ; Lung* ; Pneumonectomy ; Recurrence ; Retrospective Studies ; Tomography, X-Ray Computed