OBJECTIVES: It has been constantly reported that mismatch negativity (MMN) is impaired in patients with schizophrenia. However, the mechanism which relates impaired MMN and schizophrenia is not clear yet. The aim of this study is to investigate the association between MMN and clinical variables including functional status in patients with schizophrenia. METHODS: The present study assessed MMN using passive auditory oddball task in 26 patients with schizophrenia and 48 healthy controls. Repeated measures Analysis of Variance with age as a covariate was carried out for comparing peak amplitude and latency of MMN at 8 central line electrodes (FPz, Fz, FCz, Cz, CPz, Pz, POz, Oz) across groups. Pearson's correlation was performed to reveal the relationship between MMN and clinical variables including neurocognitive test results and the Global Assessment of Functioning score. RESULTS: MMN amplitude was significantly reduced in patients with schizophrenia compared with healthy controls. Pearson's correlation showed that subsets of short form of Korean Wechsler Adult Intelligence Scale scores and GAF scores were associated with MMN amplitude in patients with schizophrenia. CONCLUSION: These findings suggest that MMN amplitude is associated with current functional status including cognitive function in patients with schizophrenia.
Adult ; Analysis of Variance ; Electrodes ; Humans ; Intelligence ; Schizophrenia*

BACKGROUND: The typical Korean diet includes rice, which is usually served in a rice bowl. We investigated the effects of a meal plan using rice bowls of varying sizes on dietary energy intake (EI), body weight (BW), and blood glucose levels. METHODS: Forty-two obese women with type 2 diabetes mellitus were randomly assigned to use either a 200 mL small rice bowl (SB), a 380 mL regular rice bowl (RB), or to a control group (C). Both intervention groups were asked to reduce their EI by 500 kcal/day for 12 weeks and simple instructions for using the assigned bowl were provided. Dietary EI and proportion of macronutrients (PMN) were estimated from 3-day dietary records. RESULTS: Reduction of EI was more prominent in the SB group compared to the RB and C group, although EI decreased significantly from baseline in all groups. Carbohydrate and fat intakes of the SB group were decreased greater than those of the RB and C group. However, changes in PMN were not significant across the 3 groups. Reduction of BW and HbA1c levels in the SB group was more prominent compared to the C group. Although, BW and HbA1c were decreased significantly from baseline in both bowl groups. There was no statistical difference between the two groups. CONCLUSION: The small rice bowl-based meal plan was effective at reducing EI, BW, and blood glucose levels, and the observed reductions in EI, carbohydrate, and fat intake were greater than those of the regular rice bowl-based meal plan.
Blood Glucose ; Body Weight ; Diabetes Mellitus, Type 2 ; Diet, Diabetic ; Diet ; Energy Intake ; Female ; Humans ; Meals ; Obesity ; Weight Loss

BACKGROUND: Pain management in the terminal stage of advanced cancer is often complicated by opioid-related bowel syndrome and other problems. This study was conducted to investigate the safety and efficacy of ketorolac as an adjunctive analgesic in cancer pain management. METHODS: 10 acutely ill cancer patients suffering from pain, complications of advanced disease, and opioid side effects were included. Except one acute leukemia, all of the patients had metastatic solid tumors. Pain complaints consisted of visceral, somatic and opioid bowel syndrome. They were treated with intravenous morphine patient-controlled analgesia infused with a repeated ketorolac bolus dosing. Demographic data, cancer diagnosis, change of pre- and post-treatment morphine infusion rates, and days until pain control or relief of opioid bowel syndrome were evaluated. RESULTS: Excellent pain relief with improvement of opioid bowel syndrome was achieved in a majority of cases. Ketorolac showed good morphine sparing effects. None of the patients reported gastrointestinal side effects. CONCLUSION: Ketorolac appeared to be well-tolerated in the clinical dose range and for short-term use in acutely-ill terminal cancer pain patients. It also seems to be very effective in relieving opioid-related bowel syndromes.
Analgesia, Patient-Controlled ; Diagnosis ; Humans ; Ketorolac* ; Leukemia ; Morphine ; Pain Management*

BACKGROUND: This study was undertaken to investigate the analgesic efficacy and safety of gabapentin in central pain syndrome. METHODS: With a diagnosis of central pain syndrome, a total 24 patients were accumulated in the outpatient pain clinic. Patients had been stabilized in their analgesic regimen at least four weeks prior to the study. Anticonvulsants, if taken, were discontinued for two weeks for wash-out. Pretreatment baseline pain scores (visual analog scale and pain intensity score) were obtained. Oral administration of gabapentin 300 mg was started in all patients. Initial doses were given from 300 mg per day with gradual titration over two weeks until 1) the onset of analgesic effect, 2) the maximum of 2,400 mg per day, and 3) the onset of intolerable side effects. Dosage was adjusted weekly. At the four-week study end point, VAS, PIS, pain improvement scores judged by family members, drug efficacy, tolerability and overall evaluation were assessed. The incidence of side effects was also noted. RESULTS: Fifteen patients dropped out due to various reasons. Data was collected from 9 patients (male = 4, female = 5). Among these, 3 had strokes and 6 spinal cord lesions due to trauma, cancer metastasis or syringomyelia. The average disease duration was 4.2 years. Analgesic onset was within two weeks and the average dose taken was 477.7 mg. At the end of the study, the VAS score and PIS revealed significant pain relief. These results were objectively reflected in pain improvement scores observed by family members. The majority scored good or excellent in all scales of drug evaluation. Sedation was the most frequently reported side effect. Others included dry mouth, weakness, and diarrhea, which were spontaneously resolved with lower dose maintenance. CONCLUSIONS: Gabapentin showed analgesic effect for central pain syndrome at a lower dose range than any other neuropathic pain syndromes. It appears to have different analgesic dose requirements in this difficult pain syndrome.
Administration, Oral ; Anticonvulsants ; Diagnosis ; Diarrhea ; Drug Evaluation ; Female ; Humans ; Incidence ; Mouth ; Neoplasm Metastasis ; Neuralgia ; Outpatients ; Pain Clinics ; Spinal Cord ; Stroke ; Syringomyelia ; Weights and Measures

PURPOSE: To evaluate the magnetic resonance imaging (MRI) findings to improve the diagnostic accuracy for transverse process fractures and sacral fractures. MATERIALS AND METHODS: The lumbosacral MRI scans of 214 patients (mean age, 60 years; male-to-female ratio, 85:129), who had spine trauma between January and November 2015 were included. Two radiologists evaluated the presence, number, level, and anatomic site of the fractures on MRI with computed tomography as reference standard. Imaging findings were described as cortical disruption, marrow edema, or soft tissue edema on T1-, T2-, and fat-suppressed T2-weighted images. A statistical analysis was performed to compare the diagnostic accuracy of the MRI pulse sequences for the transverse process and sacral fractures. RESULTS: Of 168 fractures, 26 (15.5%) and 13 (4.9%) were in the transverse processes and sacra, respectively. A paravertebral soft tissue edema occurred in the transverse process fractures (80.8%) and presacral soft tissue and marrow edemas occurred in the sacral fractures (46.1%). The sensitivity for the transverse process fractures was 88% on the T2-weighted image. It was 92% on fat-suppressed T2- and T1-weighted images for sacral fractures. CONCLUSION Bone marrow and soft tissue edemas on the MRI could potentially improve the diagnostic accuracy of an MRI for fractures in the transverse process and sacrum.

OBJECTIVES: This study aims to identify temperament and characteristics of cannabis and methamphetamine abusers for elucidating psycho-biological variables related to certain substance abuse. METHODS: A total of 320 patients who registered in the 'Hepatitis C cohorts study of intravenous drug users' between March 2006 and March 2010 participated in this study. Data on demographic variables were obtained and the Temperament and Character Inventory (TCI) and measures for nicotine dependence, alcohol dependence, depression and anxiety were assessed. After comparing TCI between cannabis, methamphetamine, and co-abusers, correlations between TCI and other clinical variables were examined. RESULTS: The methamphetamine abuser group showed significantly higher scores in Novelty Seeking (NS2) and Harm Avoidance (HA3) in temperament than the cannabis abuser and co-abuser groups, whereas the cannabis abuser group had higher scores in purposefulness (SD2), congruent second nature (SD5), and self-directedness (SD) in character than the methamphetamine abuser group. In addition, temperaments and characters correlated with various psychiatric symptoms. CONCLUSIONS: We found the differences in temperament and characters among cannabis abusers, methamphetamine abusers. These findings might contribute to further understanding of mechanisms of cannabis and methamphetamine abuse.
Alcoholism ; Anxiety ; Cannabis ; Cohort Studies ; Depression ; Humans ; Methamphetamine ; Substance-Related Disorders ; Temperament ; Tobacco Use Disorder

BACKGROUND: Weight loss through low-calorie diets (LCDs) decreases visceral fat (VF). However, the effects on muscle mass, changes of dietary quality, and insulin sensitivity are unknown for Korean obese type 2 diabetic subjects. Therefore, this study examined such effects of LCDs. METHODS: A total of 30 obese type 2 diabetic subjects (body mass index, 27.0 +/- 2.2 kg/m2) were randomly assigned to an LCD or control group. Subjects on LCDs took 500~1,000 kcal fewer energy than their usual dietary intake (1,000~1,500 kcal/day) over the course of 12 weeks. The abdominal VF and femoral muscle mass were evaluated by computed tomography, and insulin sensitivity was assessed using an insulin tolerance test (Kitt; rate constant for plasma glucose disappearance, %/min). Dietary nutrient intake consumed by subjects was assessed by 3-day food records. RESULTS: The percent VF reduction was -23.4 +/- 17.2% in the LCD group and -9.8 +/- 11.8% in the control group after 12 weeks (P < 0.001, P = 0.002). However, significant decrease in femoral mass or proportional change of marcronutrient intake and mean adequacy ratio were not found in the LCD group, as compared to the control group. Insulin sensitivity improved in the LCD group, as compared to the control group (P = 0.040). CONCLUSION: LCD effectively improved insulin sensitivity and reduced abdominal VF without reduction of femoral muscle and dietary quality in obese type 2 diabetic subjects.
Caloric Restriction ; Diabetes Mellitus, Type 2 ; Glucose ; Insulin ; Insulin Resistance ; Intra-Abdominal Fat ; Muscles ; Plasma ; Weight Loss

BACKGROUND: Combination fitness regimens (including aerobic and resistance exercises) are effective for improving cardio-respiratory fitness, reducing visceral fat and increasing insulin sensitivity in diabetic patients. The combination exercise intensity that a patient is capable of is limited by his or her aerobic capacity and one repetition maximum (1RM). We investigated the relationships between 1RM, aerobic exercise capacity and body mass index in patients with type 2 diabetes. METHODS: A total of 177 (men: 85, women: 92) diabetic subjects with HbA1c < or = 10% were enrolled. Muscle strength and 1RM were assessed bychest press (upper body) and leg press (lower body). We assessed aerobic capacity by VO2max and muscle mass by bioimpedance analysis. RESULTS: There was no correlation between 1RM and VO2max in type 2 diabetic patients (upper: P = 0.122, lower: P = 0.138 for men, and upper: P = 0.952, lower: P = 0.570 for women). However, 1RM was significantly correlated with muscle mass both in men and women (upper: r = 0.493, P < 0.001, r = 0.315, P = 0.002 lower: r = 0.437 P < 0.001, r = 0.307, P =0.003, respectively). There was also a significant correlation between 1RM and BMI. In obese male subjects with BMI > or = 25 kg/m2, we observed a significant correlation between muscle mass and BMI (r = 0.374, P = 0.032), but this correlation was not observed in women. CONCLUSION: Clinicians treating Korean type 2 diabetic subjects should recommend resistance exercise to their patients. In particular, obese women with diabetes may receive greater benefits by increasing muscle mass through resistance exercises.
Body Mass Index ; Diabetes Mellitus ; Exercise ; Female ; Humans ; Insulin Resistance ; Intra-Abdominal Fat ; Leg ; Male ; Muscle Strength ; Muscles ; Resistance Training

We report a patient with a postpartum headache, who was later diagnosed with an intra cerebral hemorrhage. She underwent a cesarean section under the combined spinal-epidural anesthesia, and complained of a suspicious post-dural puncture headache (PDPH) in the puerperium. The headache was partially improved with analgesics and she was discharged. The day after discharge, the headache became aggravated and she visited our labor floor for further treatment. An epidural blood patch (EBP) was performed because the headache regarded as aggravation of PDPH. However, hemiparesis and dysarthria developed 40 minutes after the EBP. Computed tomography was revealed an intracerebral hemorrhage in the right side basal ganglia. She was transferred to the neurosurgical intensive care unit. She was treated conservatively and has almost completely recovered. This case highlights the need to consider an intracranial hemorrhage, a cerebrovascular accident, nonspecific headache and PDPH when making a differential diagnosis of postpartum headache, particularly when an atypical postpartum headache is noted.
Analgesics ; Anesthesia ; Basal Ganglia ; Blood Patch, Epidural ; Cerebral Hemorrhage* ; Cesarean Section ; Diagnosis, Differential* ; Dysarthria ; Female ; Headache* ; Humans ; Intensive Care Units ; Intracranial Hemorrhages ; Paresis ; Post-Dural Puncture Headache* ; Postpartum Period* ; Pregnancy ; Stroke

BACKGROUND: Insulin resistance is related to central obesity and the amount of skeletal muscle. A simple and practical anthropometric marker for muscle mass is not known, although waist circumference (WC) is used as an indicator of abdominal obesity. The aims of this study were to investigate whether arm (AC) and thigh circumferences (TC) can be used as an indicator of muscle mass and if they are related to muscle strength. METHODS: A total of 110 obese (body mass index [BMI]> or =25 kg/m2) women with type 2 diabetes were enrolled, and WC, AC, and TC were measured. Abdominal visceral fat (AVF), subcutaneous fat (ASF), and total fat (ATF) were assessed by computed tomography, regional muscle (MM), and fat mass by dual-energy X-ray absorptiometry, muscle strength by one repetition maximum (1RM) of both extremities (chest and leg press) and insulin resistance by KITT. RESULTS: The mean age was 56.2+/-7.3 years, duration of diabetes was 4.2+/-4.4 years, and BMI was 27.2+/-2.8 kg/m2. WC was correlated with ATF, AVF, and ASF (r=0.728, P<0.001; r=0.515, P<0.001; r=0.608, P<0.001, respectively). Arm MM was correlated with AC (r=0.500, P<0.001), and leg MM with TC (r=0.291, P=0.002). Upper 1RM was related to AC/WC ratio (r=0.359, P<0.001), and lower 1RM was to TC/WC ratio (r=0.286, P=0.003). Insulin resistance had significant relations with AVF, WC, and total MM (r=-0.262, P=0.008; r=-0.217, P=0.029; r=0.160, P=0.031, respectively). CONCLUSION: The muscle mass was related to extremity circumferences, and muscle strength was to extremity/waist circumference ratio in obese women with type 2 diabetes.
Absorptiometry, Photon ; Arm ; Diabetes Mellitus, Type 2 ; Extremities ; Female ; Humans ; Insulin Resistance ; Intra-Abdominal Fat ; Leg ; Muscle Strength ; Muscle, Skeletal ; Muscles ; Obesity, Abdominal ; Subcutaneous Fat ; Thigh ; Waist Circumference