1.Headache associated with polyneuritis cranialis
Neurology Asia 2018;23(2):189-191
Polyneuritis cranialis (PNC), a variant of Guillain-Barré syndrome (GBS), is a very rare disorder of multiple cranial nerve palsies without any peripheral nerve involvement or ataxia. While pain is frequent in GBS, headache is not known in the patient with PNC. We report a 72-year-old man who presented acute bilateral multiple cranial neuropathy, including neuropathies of cranial nerve III-XII and severe and prolonged headache. The brain MRI, cerebrospinal fluid examination, and peripheral nerve conduction studies showed no abnormalities. The headache improved in five weeks. All cranial neuropathies resolved completely 8 months later. We suggest that headache should be considered as an additional cardinal feature of PNC along with multiple cranial neuropathies
2.Effects of cementless fixation of implant prosthesis: A finite element study
Hyeonjong LEE ; Soyeon PARK ; Kung Rock KWON ; Gunwoo NOH
The Journal of Advanced Prosthodontics 2019;11(6):341-349
PURPOSE: A novel retentive type of implant prosthesis that does not require the use of cement or screw holes has been introduced; however, there are few reports examining the biomechanical aspects of this novel implant. This study aimed to evaluate the biomechanical features of cementless fixation (CLF) implant prostheses.MATERIALS AND METHODS: The test groups of three variations of CLF implant prostheses and a control group of conventional cement-retained (CR) prosthesis were designed three-dimensionally for finite element analysis. The test groups were divided according to the abutment shape and the relining strategy on the inner surface of the implant crown as follows; resin-air hole-full (RAF), resin-air hole (RA), and resin-no air hole (RNA). The von Mises stress and principal stress were used to evaluate the stress values and distributions of the implant components. Contact open values were calculated to analyze the gap formation of the contact surfaces at the abutment-resin and abutment-implant interfaces. The micro-strain values were evaluated for the surrounding bone.RESULTS: Values reflecting the maximum stress on the abutment were as follows (in MPa): RAF, 25.6; RA, 23.4; RNA, 20.0; and CR, 15.8. The value of gap formation was measured from 0.88 to 1.19 µm at the abutmentresin interface and 24.4 to 24.7 µm at the abutment-implant interface. The strain distribution was similar in all cases.CONCLUSION: CLF had no disadvantages in terms of the biomechanical features compared with conventional CR implant prosthesis and could be successfully applied for implant prosthesis.
Crowns
;
Finite Element Analysis
;
Prostheses and Implants
;
RNA
3.Echocardiographic features of accessory mitral valve tissue presenting left ventricular outflow tract obstruction in a dog
Soyeon KIM ; Sang-Kwon LEE ; Jihye CHOI
Journal of Veterinary Science 2021;22(4):e57-
In a 3-year-old Samoyed, aortic bulging was found on radiography during a general check-up. On echocardiography, turbulent flow was found in left ventricular outflow tract (LVOT) with high velocity (6.1 m/s). A linear structure was attached to the interventricular septum and connected to the chordae tendineae reaching the papillary muscle. A part of the structure moved during cardiac cycle, similar to mitral motion. This dog was diagnosed with LVOT obstruction caused by accessory mitral valve tissue (AMVT). This is the first report of AMVT in veterinary medicine. AMVT should be considered as a possible cause of LVOT obstruction in dogs.
4.Echocardiographic features of accessory mitral valve tissue presenting left ventricular outflow tract obstruction in a dog
Soyeon KIM ; Sang-Kwon LEE ; Jihye CHOI
Journal of Veterinary Science 2021;22(4):e57-
In a 3-year-old Samoyed, aortic bulging was found on radiography during a general check-up. On echocardiography, turbulent flow was found in left ventricular outflow tract (LVOT) with high velocity (6.1 m/s). A linear structure was attached to the interventricular septum and connected to the chordae tendineae reaching the papillary muscle. A part of the structure moved during cardiac cycle, similar to mitral motion. This dog was diagnosed with LVOT obstruction caused by accessory mitral valve tissue (AMVT). This is the first report of AMVT in veterinary medicine. AMVT should be considered as a possible cause of LVOT obstruction in dogs.
5.Extracellular Vimentin Alters Energy Metabolism And Induces Adipocyte Hypertrophy
Ji-Hae PARK ; Soyeon KWON ; Young Mi PARK
Diabetes & Metabolism Journal 2024;48(2):215-230
Background:
Previous studies have reported that oxidative stress contributes to obesity characterized by adipocyte hypertrophy. However, mechanism has not been studied extensively. In the current study, we evaluated role of extracellular vimentin secreted by oxidized low-density lipoprotein (oxLDL) in energy metabolism in adipocytes.
Methods:
We treated 3T3-L1-derived adipocytes with oxLDL and measured vimentin which was secreted in the media. We evaluated changes in uptake of glucose and free fatty acid, expression of molecules functioning in energy metabolism, synthesis of adenosine triphosphate (ATP) and lactate, markers for endoplasmic reticulum (ER) stress and autophagy in adipocytes treated with recombinant vimentin.
Results:
Adipocytes secreted vimentin in response to oxLDL. Microscopic evaluation revealed that vimentin treatment induced increase in adipocyte size and increase in sizes of intracellular lipid droplets with increased intracellular triglyceride. Adipocytes treated with vimentin showed increased uptake of glucose and free fatty acid with increased expression of plasma membrane glucose transporter type 1 (GLUT1), GLUT4, and CD36. Vimentin treatment increased transcription of GLUT1 and hypoxia-inducible factor 1α (Hif-1α) but decreased GLUT4 transcription. Adipose triglyceride lipase (ATGL), peroxisome proliferator-activated receptor γ (PPARγ), sterol regulatory element-binding protein 1 (SREBP1), diacylglycerol O-acyltransferase 1 (DGAT1) and 2 were decreased by vimentin treatment. Markers for ER stress were increased and autophagy was impaired in vimentin-treated adipocytes. No change was observed in synthesis of ATP and lactate in the adipocytes treated with vimentin.
Conclusion
We concluded that extracellular vimentin regulates expression of molecules in energy metabolism and promotes adipocyte hypertrophy. Our results show that vimentin functions in the interplay between oxidative stress and metabolism, suggesting a mechanism by which adipocyte hypertrophy is induced in oxidative stress.
6.The study of metabolic risk factors and dietary intake in adolescent children by the status of mothers' metabolic syndrome: Using the data from 2007-2010 Korean National Health and Nutrition Examination Survey.
Soyeon KWON ; Mijung PARK ; Yoonju SONG
Journal of Nutrition and Health 2013;46(6):531-539
The prevalence of metabolic syndrome (MetS) in Korea has been increasing in adults, as well as in adolescents. Recently the prevalence of MetS in children has been reported to strongly link that of MetS in parents. Families are known to share similar food environment so that eating habits of parents closely resemble that of the children's. Therefore, the aim of this study to examine metabolic risk factors and dietary intake in children by with respect to mother's metabolic syndrome, based on the data from Korean National Health and Nutrition Examination Survey (KNHANES) 2007-2010. Using the household variable and the eldest child per household, 1,341 pairs of mothers and children were selected. The mothers were defined by MetS criteria, and then the children were classified into the following three groups in accordance to the mothers' MetS; children whose mothers had none, 1-2, and 3 or more components of MetS. All dietary data were evaluated using the data from a food frequency questionnaire. The mean age was 42.6 +/- 4.2 years for the mothers, and 14.9 +/- 2.0 years for the children. Children whose mothers had 3 or more components of MetS showed a significantly higher prevalence of overweight and higher level of fasting triglyceride; conversely, they showed a lower level of serum HDL-cholesterol compared to the other two groups. Regarding an agreement of food consumption between the mothers and children, most food groups showed high agreement, except in the category of beverages. Regarding the dietary habits and family meals, children whose mothers had 3 or more components of MetS were more likely to skip breakfast and less likely to have family meals at breakfast or snack. In conclusion, the children's metabolic risk factors and dietary factors were different with respect to the status of mothers' MetS. Further studies are necessary to examine the causal effect of family environment in children's health status.
Adolescent*
;
Adult
;
Beverages
;
Breakfast
;
Child*
;
Eating
;
Family Characteristics
;
Fasting
;
Food Habits
;
Humans
;
Korea
;
Meals
;
Mothers
;
Nutrition Surveys*
;
Overweight
;
Parents
;
Prevalence
;
Surveys and Questionnaires
;
Risk Factors*
;
Snacks
;
Triglycerides
7.Usefulness of NMP22 BladderChek for the Diagnosis and Monitoring of Bladder Cancer.
Soyeon SEO ; Sungeun CHO ; Kisook HONG ; Bongsuk SHIM ; Sungwon KWON
The Korean Journal of Laboratory Medicine 2007;27(1):22-27
BACKGROUND: As bladder cancer is a superficial tumor with frequent recurrences, early detection and confirmation of recurrence are important. We evaluated the usefulness of NMP22 BladderChek (NMP22BC) for the diagnosis and monitoring of bladder cancer. METHODS: From July to December 2004, we enrolled in the study 670 patients who visited the urology clinic in Ewha Womans University, Dongdaemun Hospital with hematuria or dysuria and were tested with NMP22BC. We also performed the NMP22BC and BTA stat tests simultaneously in 21 patients and interference test in 10 patients. RESULTS: NMP22BC tests were negative in 97% of the patients who had been cured of bladder cancer and were positive in 95% of the patients with recurred bladder cancer. The diagnostic sensitivity, specificity, positive and negative predictive value, and efficiency were 95.0%, 91.5%, 25.7%, 99.8%, and 91.6%, respectively, with 8.5% false positive and 5% false negative rates. Fifty-five patients showed false positive in the NMP22BC test, the main cause of which was the presence of WBCs in urine. There was a good agreement between the NMP22BC and BTA stat tests (kappa agreement value, 0.5; P=0.008). According to the interference test, two patients with more than 3+ in leukocyte esterase results showed false positive in the NMP22BC test. CONCLUSIONS: NMP22BC test was simple to perform, rapid to produce the results, and useful in diagnosing a bladder cancer recurrence; the test shows a high efficiency with a high sensitivity, specificity, negative predictive value, and low false negative rate.
Adult
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Aged
;
Aged, 80 and over
;
Female
;
Humans
;
Male
;
Middle Aged
;
Monitoring, Physiologic
;
Nuclear Matrix-Associated Proteins/*urine
;
Nuclear Proteins/*urine
;
Reagent Kits, Diagnostic
;
Urinary Bladder Neoplasms/*diagnosis
8.Validation of Temperature Preservation in Specimen Transportation Systems
Sang Gon LEE ; Aerin KWON ; Seungman PARK ; Soyeon SEO ; Young Jin KIM ; Hyoeun SHIM ; Chorong HAM ; Jae-Seok KIM
Laboratory Medicine Online 2020;10(2):116-124
Background:
Clinical specimens are valuable materials that require a traceable management system. Maintenance of temperature and loss prevention during transport are important for the reliability of the clinical test results. Current transportation systems can suffer from temperature changes and agitation. Quality improvement in this pre-analytic phase is required. This study acquired preliminary data from a newly developed specimen transportation system adopting a real-time temperature monitoring during transportation using temperature sensor and global positioning system to establish appropriate guidelines.
Methods:
Temperature preservation performance was compared between two transportation boxes (newly developed one [A] and conventional one [B]) at exterior temperatures of 35℃ and ?18℃, reflecting the extreme temperature range in Korea. Influences of the temperatures on analytical results of whole blood, serum, plasma, and urine specimens were investigated, as were the effects of vibration.
Results:
The interior temperature of box A measured at multiple sites was maintained within 1.0?9.0℃ at both exterior temperatures. The interior temperature of box B was outside of this range. The analyzed parameters varied comparably with the variations occurring at the recommended and published storage temperature. Vibration affected nonspecific enolase and lactate dehydrogenase.
Conclusions
Temperature preservation and real-time monitoring during specimen transportation are important. The present data highlight the importance of transportation conditions and indicate that laboratories should know the characteristics of temperature changes in their transportation system.
9.Changes in Dietary Behavior of Shift Work Nurses: A Longitudinal Study
Soyeon KIM ; Smi CHOI-KWON ; Jison KI ; Jae Geum RYU ; Jihyun BAEK ; Kyeongsug KIM
Journal of Korean Academy of Nursing Administration 2022;28(5):596-604
Purpose:
This study aimed to identify the changes in dietary behavior of shift work nurses and its influencing factors over time.
Methods:
This was a secondary data analysis study based on the Shift Work Nurses’ Health and Turnover study. Data of 165 shift work nurses, who were followed for three-time points [before shift work (T0), after 6 months (T1), and after 18 months(T2) of shift work], were analyzed. Dietary behavior, level of stress, fatigue, depressive symptoms, and the amount of physical activity were measured. SPSS 28.0 was used to analyze the data to acquire descriptive statistics, repeated-measures ANOVA, and multiple linear regression with generalized estimating equations (GEE).
Results:
Dietary behavior of shift work nurses was poorer at T1 and T2 as compared to T0. As a result of GEE, shift work duration, level of stress, fatigue, and depressive symptoms were found to have negative impacts on dietary behavior.
Conclusion
Dietary behavior deteriorated and remained poor over time since shift work began. Shift work, along with stress, fatigue, and depressive symptoms, were the factors influencing their dietary behavior. Thus, to improve shift work nurses’ dietary behavior, efforts to decrease stress, and alleviate fatigue and depressive symptoms are urgently required.
10.Changes in Stress, Occupational Stress, and Subjective Health Problems of Novice Female Nurses: Secondary Data Analysis
Ji Yun CHOI ; Ji Son KI ; Kyeong Sug KIM ; Soyeon KIM ; Smi CHOI-KWON
Journal of Korean Biological Nursing Science 2022;24(2):131-139
Purpose:
This study aimed to examine the changes in stress, occupational stress, and subjective health problems of novice female nurses within the first 18 months of work.
Methods:
This was a longitudinal study conducted with a secondary data analysis based on the Shift Work Nurse’s Health and Turnover (SWNHT) study. The participants were 178 female novice nurses who participated in all 3 data collection activities (on the first day of orientation before ward placement [T0], 6 months after work [T1], and 18 months after work [T2]). The stress, occupational stress, 8 subjective health problems (upper musculoskeletal pain, leg/foot discomfort, depression, anxiety or emotional disorder, sleep disturbance, headache, gastrointestinal disorder, menstrual disorder, and others), and the greatest health problem during the study period were measured, respectively. Data were analyzed using SPSS 26.0 to obtain descriptive statistics.
Results:
The subjective health of novice female nurses were found to be poor at T1 compared to T0 on both physical (upper musculoskeletal pain, leg/foot discomfort, and sleep disturbance) and psychological health problems (depression and stress). However, the psychological health problems of the participants were alleviated at T2 whereas; physical health problems persisted until T2.
Conclusion
Novice nurses had poor health problems 6 months after work. Sleep disturbance and musculoskeletal pain persisted although other health problems such as depression and stress were alleviated over the period. Strategies to prevent and manage different health problems of novice female nurses at different work duration are urgently needed.