Breast cancer is the primary cause of cancer death in women. Although current therapies have shown some promise against breast cancer, there is still no effective cure for the majority of patients in the advanced stages of breast cancer. Development of effective agents to slow, reduce, or reverse the incidence of breast cancer in high-risk women is necessary. Chemoprevention of breast cancer by natural products is advantageous, as these compounds have few side effects and low toxicity compared to synthetic compounds. In the present review, we summarize natural products which exert chemopreventive activities against breast cancer, such as curcumin, sauchinone, lycopene, denbinobin, genipin, capsaicin, and ursolic acid. This review examines the current knowledge about natural compounds and their mechanisms that underlie breast cancer chemopreventive activity both in vitro and in vivo. The present review may provide information on the use of these compounds for the prevention of breast cancer.
Biological Products* ; Breast Neoplasms* ; Breast* ; Capsaicin ; Chemoprevention* ; Curcumin ; Female ; Humans ; Incidence

PURPOSE: This descriptive study was conducted to identify the level of knowledge of stroke symptoms and risk factors among older adults. METHODS: A total of 200 older adults over 65 years of age were conveniently recruited from out patient departments of two hospitals and a health care center from October to November 2008. The level of knowledge was assessed using both open-ended questions and a structured questionnaire based on semi-structured interviews. Data were analyzed by t-tests and ANOVA using the SPSS program. RESULTS: 52.5% of the sample had hypertension and 30% had diabetes. The mean knowledge scores for symptoms and risk factors were 8.4 +/- 3.1(out of 15) and 9.5 +/- 3.9 (out of 16), respectively. The older adults who had lower education, lower family income, and who lived in rural areas were more likely to have less knowledge of stroke symptom and risk factors(p < .05). There was no significant knowledge difference between the older adults who had at least one risk factor and those who had no risk factor for stroke. CONCLUSIONS: Educational intervention should be focused on informing older adults who are at risk for stroke about the early symptoms and management of risk factors, especially those who have low education and low social status.
Adult ; Delivery of Health Care ; Humans ; Hypertension ; Risk Factors ; Stroke ; Surveys and Questionnaires

PURPOSE: The aim of this research was to identify the relationships between occupational stress, ethical dilemma, burnout and turnover intention and the factors influencing turnover intention in hospital nurses. METHODS: The participants, 215 nurses, were recruited from two university hospitals located in two provinces of Korea. Data were collected through self-report questionnaires. Collected data were analyzed using descriptive statistics, t-test, ANOVA, Pearson correlation coefficients, and multiple regression with SPSS/WIN 22.0. RESULTS: Participants' scores for occupational stress, ethical dilemma, burnout and turnover intention were 3.96±0.45, 2.60±0.39, 3.71±0.70, and 3.50±0.90 respectively. The results show that the higher the score for occupational stress, ethical dilemma, and burnout the higher the score for turnover intention. The most important factor influencing turnover intention was burnout (β=.42, p < .001), followed by position (β=.21, p=.001), educational level (β=.21, p=.007), ethical dilemma (β=.13, p=.020) in that order. These factors explained 43.5% of total variance in turnover intention (F=19.34, p < .001). CONCLUSION: Changes in hospital structural management systems and support strategies should be developed and operated, taking into account burnout, ethical dilemma, and personal characteristics of clinical nurses in order to reduce turnover.
Ethics ; Hospitals, University ; Humans ; Intention ; Korea ; Personnel Turnover

Bickerstaff's brainstem encephalitis is characterized by ophthalmoplegia, ataxia, and disturbance of consciousness. It is similar to Miller Fisher syndrome, a variant of Guillain-Barre syndrome, in that they share features such as ophthalmoplegia and ataxia. The difference is that patients with Bickerstaff's brainstem encephalitis have impaired consciousness, whereas patients with Miller Fisher syndrome have alert consciousness and areflexia. Here, we report the case of a 3-year-old child who was diagnosed with Bickerstaff's brainstem encephalitis presenting typical clinical features and interesting radiological findings. The patient showed ophthalmoplegia, ataxia, and subsequent stuporous mentality. Brain magnetic resonance imaging revealed high signal intensity in the pons and cerebellum around the 4th ventricle on a T2-weighted image. He was successfully treated with intravenous immunoglobulin. Differentiation of Bickerstaff's brainstem encephalitis and Miller Fisher syndrome is often difficult because they possess many overlapping features. Brain magnetic resonance imaging may be helpful in diagnosing Bickerstaff's brainstem encephalitis, especially when lesions are definitely found.
Ataxia ; Brain ; Brain Stem* ; Cerebellum ; Child ; Child, Preschool ; Consciousness ; Encephalitis* ; Guillain-Barre Syndrome ; Humans ; Immunoglobulins ; Magnetic Resonance Imaging ; Miller Fisher Syndrome ; Ophthalmoplegia ; Pons ; Stupor

PURPOSE: Among the many factors associated with acute intestinal mucosal infection, numerous studies have proposed the usefulness of fecal calprotectin. The aim of this study was to evaluate the usefulness of fecal calprotectin in the diagnosis of necrotizing enterocolitis (NEC). METHODS: We collected 154 stool samples from 16 very low birth weight and premature newborns at the Konyang University Hospital neonatal intensive care unit or neonatal nursery. The stool samples were collected using the Calprest device, and the fecal calprotectin level was measured with the BUHLMANN Calprotectin enzyme-linked immunosorbent assay kit. RESULTS: Fecal calprotectin levels were significantly higher in the NEC group than in the non-NEC group (P=0.02). There was a significant positive linear relationship between the fecal calprotectin level and number of days after birth (P=0.00) in the gestational age <26 weeks group. There was a significant negative linear relationship between the calprotectin level and number of days after birth (P=0.03) in the gestational age > or =26 weeks and <30 weeks group. There was no difference in the calprotectin levels according to the type and method of feeding between the NEC and non-NEC groups. CONCLUSION: Fecal calprotectin levels were significantly increased in premature infants with NEC. The fecal calprotectin test is a noninvasive, easy, and useful tool for the diagnosis of NEC.
Diagnosis ; Enterocolitis, Necrotizing* ; Enzyme-Linked Immunosorbent Assay ; Gestational Age ; Humans ; Infant, Newborn ; Infant, Premature ; Infant, Very Low Birth Weight ; Intensive Care, Neonatal ; Leukocyte L1 Antigen Complex* ; Nurseries ; Parturition

OBJECTIVE: To clarify how participation in leisure activities and exercise by chronic stroke survivors differs before and after a stroke. METHODS: Sixty chronic stroke survivors receiving community-based rehabilitation services from a health center in Seongnam City were recruited. They completed a questionnaire survey regarding their demographic characteristics and accompanying diseases, and on the status of their leisure activities and exercise. In addition, their level of function (Korean version of Modified Barthel Index score), risk of depression (Beck Depression Inventory), and quality of life (SF-8) were measured. RESULTS: After their stroke, most of the respondents had not returned to their pre-stroke levels of leisure activity participation. The reported number of leisure activities declined from a mean of 3.9 activities before stroke to 1.9 activities post-stroke. In addition, many participants became home-bound, sedentary, and non-social after their stroke. The most common barriers to participation in leisure activities were weakness and poor balance, lack of transportation, and cost. The respondents reported a mean daily time spent on exercise of 2.6+/-1.3 hours. Pain was the most common barrier to exercise participation. CONCLUSION: Chronic stroke survivors need information on leisure activities and appropriate pain management.
Surveys and Questionnaires ; Depression ; Gyeonggi-do ; Humans ; Leisure Activities* ; Pain Management ; Quality of Life ; Rehabilitation* ; Social Welfare ; Stroke* ; Survivors* ; Transportation ; Surveys and Questionnaires

OBJECTIVE: To investigate the usefulness of ultrasonographic measurement of hyoid bone movement during swallowing. METHODS: Fifty-two patients who had swallowing dysfunction were enrolled in this study. When a patient swallowed 5 mL of water while maintaining an upright sitting position, hyoid bone movement during swallowing was measured with ultrasonography. Recorded images were analyzed to measure the maximum change in hyoid bone displacement. Mandible was used as reference point to calculate hyoid bone displacement. The farthest distance from resting position and the nearest distance during swallowing were measured and their differences were recorded. Participants also underwent videofluoroscopic swallowing study (VFSS). Based on penetration-aspiration scale (PAS), they were grouped to non-aspirators (PAS 1), penetrators (PAS 2-5), or aspirators (PAS 6-8). Measured hyoid bone displacements by submental ultrasonography were compared among groups. RESULTS: The mean hyoid bone displacement in non-aspirators group (n=21, 15.9±2.7 mm) was significantly (p<0.05) greater than that in penetrators group (n=20, 11.5±2.8 mm) or aspirators group (n=11, 8.0±1.0 mm). Hyoid bone displacement below 13.5 mm as a cutoff point for detecting penetration or aspiration had a sensitivity and specificity of 83.9% and 81.0%, respectively. CONCLUSION: Submental ultrasonographic evaluation was well correlated with PAS measured by VFSS. Therefore, submental ultrasonographic evaluation could be a useful screening tool for dysphagic patients.
Deglutition ; Deglutition Disorders* ; Humans ; Hyoid Bone ; Mandible ; Mass Screening ; Sensitivity and Specificity ; Ultrasonography ; Water

PURPOSE: The aim of this study was to evaluate the prevalence of increased aminotransferase levels and to identify associated factors in children admitted to hospital with urinary tract infections (UTIs). METHODS: The study included children with a diagnosis of UTI who were admitted to the Konyang University Hospital from January 2007 to May 2011. The total number of patients was 249 and the mean age was 15.88+/-28.21 months. UTI was defined as a positive urine culture (>105/colony forming unit [CFU]) with pyrexia. Patients were treated by intravenous antibiotics, such as ampicillin/sulbactam, aminoglycoside, cephalosporins or vancomycin. Patients with neonatal jaundice or other liver disease were excluded. We investigated the relationship of aminotransferase levels with the type of antibiotic, degree of vesicoureteral reflux (VUR), and causative organisms. RESULTS: Children with increased aminotransferase levels were younger than those with normal levels (p=0.001), but white blood cell count, platelet count, causative organisms, type of antibiotics and presence of VUR were not associated with aminotransferase levels. Aminotransferase levels became normal within 1 month after discharge without special measures, except in 1 case. CONCLUSION: We found that many children with UTI have abnormal aminotransferase levels. In most cases, this change is mild and self-limiting. We conclude that increased aminotransferase level increase during UTI do not require unnecessary tests and excessive treatment.
Anti-Bacterial Agents ; Cephalosporins ; Child ; Fever ; Humans ; Infant, Newborn ; Jaundice, Neonatal ; Leukocyte Count ; Liver Diseases ; Liver Function Tests ; Platelet Count ; Prevalence ; Sepsis ; Urinary Tract ; Urinary Tract Infections ; Vancomycin ; Vesico-Ureteral Reflux

The incidence of severe fever with thrombocytopenia syndrome (SFTS) has increased in Korea since a first report in 2013. We investigated whether SFTS existed before 2013 using real-time reverse transcription polymerase chain reaction and stored blood samples from febrile patients with thrombocytopenia. Four cases of SFTS were identified, with the earliest occurring in 2008.
Fever* ; Humans ; Incidence ; Korea* ; Lymphohistiocytosis, Hemophagocytic* ; Phlebovirus ; Polymerase Chain Reaction ; Retrospective Studies* ; Reverse Transcription ; Thrombocytopenia*

PURPOSE: It is very important to remove or to reduce the effect of organ motion due to respiration in stereotatic radiosurgery of lung. This study reports the effectiveness of the breath hold technique with a ABC for reducing the breathing effect. MATERIALS AND METHODS: Whole body stereotactic frame (Elekta, Sweden) was used for lung SRS. Patients who have tumor motion range larger than 10 mm from fluoroscopic observation were selected to apply a ABC. Seventeen patients were enrolled in this study. Passive breath hold is possible with our ABC. Automatic breath hold was set at 80% of deep inspiration. Breath hold time was 25~30 seconds depending on the patients. Three consecutive CT scans were performed as indicated in Asan Medical Center SRS procedure for each patients. Lung volume and PTV differences between with breath hold and free breath were examined for 5 patients. RESULTS: The breath hold technique with ABC could be applied for 15 patients. Inter-, intra-treatment organ motion with ABC showed 1.5 mm, while it was 2.3 mm with abdomen compress. When with breath hold technique, PTV and CTV was reduced 33.7% and 45.4%, respectively, and lung volume was increased 32.3 % compared to conventional SRS method. CONCLUSION: Better target localization could be achieved with breath hold technique in lung SRS. Tumor motion could be minimized and relative lung volume irradiation could be reduced
Abdomen ; Chungcheongnam-do ; Humans ; Lung Neoplasms* ; Lung* ; Radiosurgery ; Respiration ; Tomography, X-Ray Computed