A case of cavernous angioma of the cerebellar vermis is described. Cevernous angioma is rare vascular malformation of the central nervous system and the cerebellar vermis is very unusual site. Exact preoperative diagnosis of this lesion is difficult because cavernous angioma is angiographically silent and generally accepted to be very rare. The relevant literature is reviewed.
Central Nervous System ; Diagnosis ; Hemangioma ; Hemangioma, Cavernous* ; Vascular Malformations

PURPOSE: This study aims to analyze the characteristics of discussion materials that promote student participation in discussions, satisfaction with student instruction, and tutor intervention in the medical humanities. METHODS: We surveyed 117 premedical students and 7 tutors who attended 4-week group discussions in the medical humanities in 2010. We described the discussion materials using the following 4 characteristics as independent variables: material type, level of understanding, interest, and quantity. Dependent variables were: student participation in the discussion, student instruction satisfaction, and tutor intervention. Correlation analysis, multiple regression analysis, and crosstab were performed using SPSS 15.0. RESULTS: The correlation between the characteristics of the discussion materials differed by grade. When the books were chosen as the discussion material in the instruction of first-year premedical students, the correlation between level of understanding, interest, and quantity was negative. Higher levels of understanding of the material and interest in the material led to an increase in discussion participation among both first- and second-year premedical students. Higher levels of understanding and interest of the discussion material also increased student satisfaction with the instruction, regardless of grade. Finally, levels of understanding of the material affected the degree of tutor intervention. Tutors intervened more often in discussions with first-year premedical students than with second-year premedical students. CONCLUSION: Differences in grades and the understanding of the discussion material should be considered when choosing discussion materials. Further study is required to continue the development of the discussion model and improve methods of facilitate discussion among students in the medical humanities.
Humanities ; Humans ; Students, Medical ; Students, Premedical

BACKGROUND AND OBJECTIVES: Spontaneous progression of severe congestive heart failure is structurally characterized by cellular degeneration and multiple foci of myocardial cell death. The cardiac troponin I (cTnI), one of the subunits of the troponin regulatory complex, binds to actin and inhibits interaction between actin and myosin. cTnI is uniquely expressed in the adult human myocardium, and an increase in its circulating levels is highly indicative of myocardial injury. In this study, we addressed the usefulness of cTnI as a sensitive and specific molecular marker for severity in patients with congestive heart failure. MethodscTnI, creatinin kinase-MB (CK-MB), and myoglobin were assessed in 59 patients with severe congestive heart failure diagnosed by the echo-cardiography and gated equilibrium blood pool heart scan. Also we assesed cTnI, creatinin kinase-MB (CK-MB), and myoglobin in 25 persons without cardiac disease in echocardiography. RESULTS: 1) The cTnI con-centration was 89.6+/-69.3 pg/mL in patients with congestive heart failure and its level was greater than that of the control group (22.4+/-17.1, p=0.001). 2) The cTnI level differed significantly according to left ventricular ejection fraction (EF), 117.3+/-73.8 pg/mL in patients with EF\<40% (28 patients), 66.3+/-44.5 pg/mL in patients with EF> or =40% (31 patients), 22.4+/-17.1 pg/mL in the control group (25 persons) (p=0.001). CONCLUSION: cTnI was useful as a specific and sensitive serum molecular marker in patients of congestive heart failure. And its level reflected the severity of congestive heart failure.
Actins ; Adult ; Cell Death ; Echocardiography ; Equidae ; Estrogens, Conjugated (USP)* ; Heart ; Heart Diseases ; Heart Failure* ; Humans ; Myocardium ; Myoglobin ; Myosins ; Stroke Volume ; Troponin I* ; Troponin*

BACKGROUND AND OBJECTIVES: he patients with atrial septal defect generally have no symptoms in the childhood, and have nonspecific symptoms such as dyspnea on exertion, fatigue, and palpitation even in the late period of adult. Thus delayed diagnosis for whom surgical correction was undoubtedly needed remains to be resolved. Accordingly, the simple and noninvasive method such as electrocardiography in patients with atrial septal defect having the nonspecific symptoms or having no symptoms warrants to be developed. This study was performed to see whether the crochetage pattern on R wave in inferior limb leads is effective for the electrocardiographic diagnosis of atrial septal defect and relates to the magnitude of left to right shunt. METHODS: Our subjects were 129 patients diagnosed as the atrial septal defect by the echocardiography and cardiac catheterization from January 1992 to June 1998. We selected 57 persons, as control group, who showed the normal findings under the echocardiography and also showed the incomplete right bundle branch block on the electrocardiography. We compared the frequency of the crochetage pattern in inferior limb leads between the two groups. Also we compared the frequency of the crochetage pattern before operation and after operation according to the quantity of the left to right shunt in the operated 40 patients with atrial septal defect. RESULTS: ) The crochetage pattern was observed in 61.2% in patients with atrial septal defect and its frequency was greater than that of the control group (38.6%, p=0.005). 2) The crochetage pattern was disappeared by the operation in 16/29 patients (55.2%, p=0.001). 3) The frequency of disappearance of the crochetage pattern after operation differed significantly according to shunt severity: 72.2% for a Qp/Qs> or =3.0 group, 18.2% for a Qp/Qs<3.0 group (p=0.015). CONCLUSION: The crochetage pattern on R wave in inferior limb leads was helpful to the electrocardiographic diagnosis of the atrial septal defect. The disappearance of the crochetage pattern after operation was correlated with shunt severity.
Adult ; Bundle-Branch Block ; Cardiac Catheterization ; Cardiac Catheters ; Delayed Diagnosis ; Diagnosis ; Dyspnea ; Echocardiography ; Electrocardiography* ; Extremities* ; Fatigue ; Heart Septal Defects, Atrial* ; Humans

No abstract available.
Apolipoprotein C-II* ; Apolipoproteins* ; Hep G2 Cells* ; RNA, Messenger*

No abstract available.
Hyperglycemia

Traumatic brain injury (TBI) is associated with poor neurological outcome, including necrosis and brain edema. In this study, we investigated whether agmatine treatment reduces edema and apoptotic cell death after TBI. TBI was produced by cold injury to the cerebral primary motor cortex of rats. Agmatine was administered 30 min after injury and once daily until the end of the experiment. Animals were sacrificed for analysis at 1, 2, or 7 days after the injury. Various neurological analyses were performed to investigate disruption of the blood-brain barrier (BBB) and neurological dysfunction after TBI. To examine the extent of brain edema after TBI, the expression of aquaporins (AQPs), phosphorylation of mitogen-activated protein kinases (MAPKs), and nuclear translocation of nuclear factor-kappaB (NF-kappaB) were investigated. Our findings demonstrated that agmatine treatment significantly reduces brain edema after TBI by suppressing the expression of AQP1, 4, and 9. In addition, agmatine treatment significantly reduced apoptotic cell death by suppressing the phosphorylation of MAPKs and by increasing the nuclear translocation of NF-kappaB after TBI. These results suggest that agmatine treatment may have therapeutic potential for brain edema and neural cell death in various central nervous system diseases.
Active Transport, Cell Nucleus/drug effects ; Agmatine/*therapeutic use ; Animals ; Apoptosis/*drug effects ; Aquaporins/metabolism ; Blood-Brain Barrier/physiopathology ; Brain Edema/*drug therapy ; Brain Injuries/*pathology ; Male ; Mitogen-Activated Protein Kinases/metabolism ; Motor Cortex/*pathology ; NF-kappa B/metabolism ; Phosphorylation/drug effects ; Rats ; Rats, Sprague-Dawley

Agmatine is a primary amine formed by decarboxylation of L-arginine synthesized in the mammalian brain. Recent studies have shown that agmatine is neuroprotective in models of trauma and ischemia. The purpose of this study was to evaluate the effect of agmatine on the expression of MMP2 and MMP9, which are expressed in reperfusion injury following cerebral ischemia. Mice were subjected to 2 h middle cerebral artery occlusion and 22 h reperfusion. Agmatine (100 mg/kg) was administered intraperitoneally at the start of reperfusion. Agmatine treatment significantly reduced the immunoreactivity of MMP2 and MMP9 in the cortex, striatum, and penumbra on the ipsilateral side. The immunoreactivity of MMP2 and MMP9 was markedly lower in blood vessels of the agmatine-treated group than in the experimental control group. Immunoblot analysis showed that agmatine treatment decreased the expression of MMP2 and MMP9. After exogenous agmatine administration, the expression of agmatine was higher in the striatum and penumbra of the agmatine-treated group than in the experimental control group. The fluorescence intensity was markedly greater in blood vessels in the agmatine-treated group than in the experimental control group. These data suggest that agmatine might decrease the expression of MMP2 and MMP9 by regulating NOS activity, and thereby modulating NO synthesis.
Agmatine ; Animals ; Arginine ; Blood Vessels ; Brain ; Brain Ischemia ; Decarboxylation ; Fluorescence ; Infarction, Middle Cerebral Artery ; Ischemia ; Mice ; Nitric Oxide ; Reperfusion ; Reperfusion Injury

No abstract available.
Gonadotropin-Releasing Hormone* ; Gonads* ; Steroids* ; Trophoblasts*

Insulin resistance (IR) plays a significant role in the development and progression of non-alcoholic fatty liver disease (NAFLD). However, the natural course of insulin sensitivity under NAFLD remained unclear. Accordingly, this study was designed to investigate the effect of NAFLD on insulin resistance. A total of 20,628 Korean men without homeostasis model assessment of insulin resistance (HOMA-IR < 2.7) were followed-up for 5 years. They were serially checked for HOMA-IR to monitor the development of IR (HOMA-IR ≥ 2.7). The incidence rate of IR increased according to the degree of NAFLD (normal: 11.6%, mild: 28.8%, moderate to severe: 40.5%, P < 0.001). Cox proportional hazards model showed that HRs (95% CI) for IR increased proportionally to the degree of NAFLD (mild: 1.19 [1.02–1.39], moderate to severe: 1.32 [1.08–1.57]). IR was more potentially associated with the more progressive NAFLD than normal and milder state. In addition, NAFLD was the independent risk factor of the development of IR. These results suggest the potential availability of NAFLD as a predictor of IR.
Homeostasis ; Humans ; Incidence ; Insulin Resistance* ; Insulin* ; Male ; Non-alcoholic Fatty Liver Disease* ; Proportional Hazards Models ; Risk Factors