Rupture of the sinuses of Valsalva is not common in childhood. It is frequently associated with other heart disease, most commonly with VSD. It is classified into four types, anatomically. The symptoms are differentiated as acute, gradual progression, and unruptured aneurysm. We experienced 2 cases of rupture of the sinuses of Valsala, which were corrected completely after operation. The patients were 14 year old boy with his chief complaint of dyspnea and chest pain, and an 11 year old girl with chief complaint of exertional dyspnea.
Adolescent ; Aneurysm ; Chest Pain ; Child ; Dyspnea ; Female ; Heart Diseases ; Humans ; Male ; Rupture*

No abstract available.
B-Lymphocytes ; Lymphoma, B-Cell

PURPOSE: This study aimed to develop a TES program to improve exercise capacity to promote patient compliance to the prescribed exercise, and to test the feasibility of the program. METHOD: The 8-week TES program consisted of three components : exercise training, self-efficacy enhancement and social support. Using the matching of gender, age, and the left ventricular ejection fraction, thirty one subjects were consecutively assigned to either TES group (n=15, 52+7 years) or Control group (n=16, 58+11 years) 3 weeks after MI. With the exception of exercise compliance (only after the TES program), the exercise capacity and exercise self-efficacy were both measured both before and after the 8-week TES program. RESULT: The VO2peak (p= .043), anaerobic threshold (p= .023) and exercise duration (p= .015) improved in TES group compared to Control group after 8 weeks. The cardiac exercise self-efficacy (p= .036) was significantly higher in TES group than Control group. There was a significant increase of exercise compliance(p= .005) in TES group compared to Control group. CONCLUSION: The 8-week TES program improved the exercise capacity, exercise self-efficacy and exercise compliance. A appropriately implemented TES program in cardiovascular nursing practice may promote healthy behavioral modification and, therefore, contributing to reduce the risk of mortality and morbidity in MI patients.
Anaerobic Threshold ; Cardiovascular Nursing ; Compliance ; Humans ; Methods ; Mortality ; Myocardial Infarction* ; Patient Compliance* ; Stroke Volume

The present study aimed to determine the best polymerase chain reaction (PCR) conditions for amplification of odontoblast markers; alkaline phosphatase (ALP), dentin matrix protein 1 (DMP1), dentin sialophosphoprotein (DSPP) and osteopontin (OPN). Informed consent was obtained from the individuals prior to tooth extraction. RNA was extracted from odontoblasts obtained from extracted teeth using innuPREP RNA Mini kit (Analytik Jena, Germany). Five selected target factors in enhancing PCR: primer concentration, extension time, number of cycles, annealing time, and annealing temperature were manipulated to yield the correct size of amplicons. One step reverse transcriptase PCR reactions were performed using MyTaq One-Step RT-PCR kit (Bioline, USA) with a C1000 Thermal Cycler (Bio-Rad, USA) in a 25 µL reaction, keeping the amount of 2 ng/µL RNA, 0.25 µL reverse transcriptase, 0.5 µL RiboSafe Rnase inhibitor and 1X MyTaq One-Step Mix, constant. The optimal conditions were determined to be 400nM of primers for DMP1 and DSPP, 200 nM for ALP and OPN; 30 seconds of extension time and 35 PCR cycles for all genes; 10 seconds of annealing time for ALP, DMP1 and DSPP, 7 seconds for OPN. The annealing temperature were 56.4°C for ALP, 58.6°C for DMP1, 52.7°C for DSPP, and 56.3°C for OPN, respectively. The optimized PCR protocols produced the correct size of odontoblast markers.
Polymerase Chain Reaction

Purpose: DNA damage and repair responses are induced by metabolic diseases and environmental stress. The balance of DNA repair response and the antioxidant system play a role in modulating the entire body’s health. This study uses a high-fat and high-calorie (HFC) drink to examine the new roles of a plant-based multivitamin/mineral supplement with phytonutrients (PMP) for regulating the antioxidant system and cellular DNA repair signaling in the body resulting from metabolic stress. Methods: In a double-blind, randomized, parallel-arm, and placebo-controlled trial, healthy adults received a capsule containing either a PMP supplement (n = 12) or a placebo control (n = 12) for 8 weeks. Fasting blood samples were collected at 0, 1, and 3 hours after consuming a HFC drink (900 kcal). The blood samples were analyzed for the following oxidative stress makers: areas under the curve reactive oxygen species (ROS) levels, plasma malondialdehyde (MDA), erythrocytes MDA, urinary MDA, oxidized low-density lipoprotein, and the glutathione:oxidized glutathione ratio at the time points. We further examined the related protein levels of DNA repair signaling (pCHK1 (Serine 345), p-P53 (Serine 15), and γH2AX expression) in the plasma of subjects to evaluate the time-dependent effects of a HFC drink. Results: In a previous study, we showed that PMP supplementation for eight weeks reduces the ROS and endogenous DNA damage in human blood plasma. Results of the current study further show that PMP supplementation is significantly correlated with antioxidant defense. Compared to the placebo samples, the blood plasma obtained after PMP supplementation showed enhanced DNA damage response genes such as pCHK1(Serine 345) (a transducer of DNA response) and γH2AX (a hallmark of DNA damage) during the 8 weeks trial on metabolic challenges. Conclusion Our results indicate that PMP supplementation for 8 weeks enhances the antioxidant system against oxidative stress and prevents DNA damage signaling in humans.

A total of 542 children under 10 years of age, admitted to the Seoul National University Children's Hospital, was examined for antibody titers of Toxoplasma gondii using indirect latex agglutination (ILA) test. Among them, 7.7% showed positive titers higher than 1:32, without significant difference between males (7.3%) and females (8.5%). The seropositive rate increased with age although the statistical significance was negligible (0.05 < P < 0.1). By residential areas, the prevalence appeared higher among children from southern provinces (Kyongsang-do and Cholla do) than those from other areas, but the statistical significance was also very low (0.05 < P < 0.1). When the seropositive cases were analyzed by coincidental diseases, the prevalence was significantly higher in patients with congenital diseases than in patients with non-congenital diseases (P < 0.05). The results showed that the seropositive rate of toxoplasmosis in children examined was not high compared with other endemic countries. Some correlations are suggested between toxoplasmosis and congenital anomalies in Korea.
Animal ; Antibodies, Protozoan/blood* ; Child ; Child, Preschool ; Female ; Human ; Infant ; Korea/epidemiology ; Latex Fixation Tests ; Male ; Prevalence ; Seroepidemiologic Studies ; Toxoplasma/immunology* ; Toxoplasmosis/epidemiology*

Molecular karyotyping was applied to Pneumocystis carinii(Pc) from two strains of experimental rats, Sprague Dawley(SD) and Fisher(F), in Korea. Field inversion gel electrophoresis and contour clamped homogeneous electric field electrophoresis resolved 15 chromosomal bands from the Pc. The size of the bands was estimated 270kb to 684kb from SD rats, and 273kb to 713 kb from F rats. The bands of 283 kb from SD rats and of 273 kb from F rats stained more brightly suggesting duplicated bands. Total number of chromosomes was at least 16, and total genomic size was estimated 7 x 10(6) bp. All of the bands from F rats hybridized to the probe of repeated DNA sequences of Pc and the band of 448 kb size was proved to contain rDNA sequences, but Pc. chromosome bands from SD rats showed no reactions to the probes. The 2 different karyotypes of P. carinii from 2 strains of rats were maintained consistently for 2 years.
Electrophoresis- ; ; Korea- ; ; Nucleic-Acid-Hybridization ; Pneumocystis-carinii-isolation-and-purification ; Rats- ; *Karyotyping- ; ; *Pneumocystis-carinii-genetics ; *Rats,-Inbred-F344-microbiology ; *Rats,-Sprague-Dawley-microbiology

PURPOSE: We designed the aft-multiple-slit (AMS) system to reduce scatter in cone-beam computed tomography (CBCT). As a preliminary study, we performed a Monte Carlo N-Particle Transport Code (MCNP) simulation to verify the effectiveness of this system. MATERIALS AND METHODS: The MCNPX code was used to build the AMS geometry. An AMS is an equi-angled arc to consider beam divergence. The scatter-reduced projection images were compared with the primary images only and the primary plus scatter radiation images with and without AMS to evaluate the effectiveness of scatter reduction. To obtain the full 2 dimensional (2D) projection image, the whole AMS system was moved to obtain closed septa of the AMS after the first image acquisition. RESULTS: The primary radiation with and without AMS is identical to all the slit widths, but the profiles of the primary plus scattered radiation varied according to the slit widths in the 2D projection image. The average scatter reduction factors were 29%, 15%, 9%, and 8% when the slit widths were 5 mm, 10 mm, 15 mm, and 20 mm, respectively. CONCLUSION: We have evaluated the scatter reduction effect of the AMS in CBCT imaging using the Monte Carlo (MC) simulations. A preliminary study based on the MCNP simulations showed a mount of scatter reduction with the proposed system.
Cone-Beam Computed Tomography

PURPOSE: Macrolide resistance rate of Mycoplasma pneumoniae has rapidly increased in children. Studies on the clinical features between macrolide susceptible-M. pneumoniae (MSMP) and macrolide resistant-M. pneumoniae (MRMP) are lacking. The aim of this study was to identify the macrolide resistance rate of M. pneumoniae in Korean children with M. pneumoniae penupmonia in 2015 and compare manifestations between MSMP and MRMP. METHODS: Among 122 children (0–18 years old) diagnosed with M. pneumoniae pneumonia, 95 children with the results of macrolide sensitivity test were included in this study. Clinical manifestations were acquired using retrospective medical records. RESULTS: The macrolide resistant rate of M. pneumoniae was 87.2% (82 of 94 patients) in children with M. pneumoniae pneumonia. One patient showed a mixed type of wild type and A2063G mutation in 23S rRNA of M. pneumoniae. There were no significant differences in clinical, laboratory, and radiologic findings between the MSMP and MRMP groups at the first visit to our hospital. The time interval between initiation of macrolide and defervescence was significantly longer in the MRMP group (4.9±3.3 vs. 2.8±3.1 days, P=0.039). CONCLUSION: The macrolide resistant rate of M. pneumoniae is very high in children with M. pneumoniae pneumonia in Korea. The clinical manifestations of MRMP are similar to MSMP except for the defervescence period after administration of macrolide. Continuous monitoring of the occurrence and antimicrobial susceptibility of MRMP is required to control its spread and establish strategies for treating second-line antibiotic resistant M. pneumoniae infection.
Child* ; Drug Resistance ; Humans ; Korea ; Medical Records ; Mycoplasma pneumoniae* ; Mycoplasma* ; Pneumonia* ; Pneumonia, Mycoplasma* ; Prevalence* ; Retrospective Studies

The importance of opiate dependence or abuse is increasing in the context of the increasing number of cancer survivors and patients with chronic cancer pain. Cancer patients are likely to have psychological disorders such as depression, anxiety, and sleep disturbances. It is important to distinguish these psychological disorders from opiate dependence or abuse. We report a case of a cancer patient with major depressive disorder who was initially suspected of opiate dependence or abuse.
Anxiety ; Depression ; Depressive Disorder ; Depressive Disorder, Major ; Humans ; Opioid-Related Disorders ; Survivors