1.The Role of NF-kappaB in the TNFalpha-induced Hyperplasia of Synoviocytes Isolated from Patients with Rheumatoid Arthritis.
Jee Hee YOON ; Sung Hee HWANG ; So Yeon MIN ; Ho Yeon KIM
Korean Journal of Immunology 2000;22(3):131-137
No abstract available.
Arthritis, Rheumatoid*
;
Humans
;
Hyperplasia*
;
NF-kappa B*
2.Intraventricular Hemorrhage and Post Hemorrhagic Hydrocephalus among Very-Low-Birth-Weight Infants in Korea.
So Yoon AHN ; So Yeon SHIM ; In Kyung SUNG
Journal of Korean Medical Science 2015;30(Suppl 1):S52-S58
Here, we aimed to evaluate the incidence and mortality of intraventricular hemorrhage (IVH) and post-hemorrhagic hydrocephalus (PHH) among very-low-birth-weight (VLBW) infants in Korea and assess the associated factors of PHH. This cohort study used prospectively collected data from the Korean Neonatal Network (KNN). Among 2,386 VLBW infants in the KNN database born between January 2013 and June 2014, 63 infants who died without brain ultrasonography results were excluded. Maternal demographics and neonatal clinical characteristics were assessed. The overall incidence of IVH in all the VLBW infants was 42.2% (987 of 2,323), while those of IVH grade 1, 2, 3, and 4 were 25.1%, 7.0%, 4.8%, and 5.5%, respectively. The incidence and severity of IVH showed a negatively correlating trend with gestational age and birth weight. PHH developed in 0%, 3.5%, 36.1%, and 63.8% of the surviving infants with IVH grades 1, 2, 3, and 4, respectively. Overall, in the VLBW infants, the IVH-associated mortality rate was 1.0% (24/2,323). Only IVH grade severity was proven to be an associated with PHH development in infants with IVH grades 3-4. This is the first Korean national report of IVH and PHH incidences in VLBW infants. Further risk factor analyses or quality improvement studies to reduce IVH are warranted.
Birth Weight
;
Cerebral Hemorrhage/*epidemiology/mortality/pathology
;
Cohort Studies
;
Databases, Factual
;
Echoencephalography
;
Female
;
Gestational Age
;
Humans
;
Hydrocephalus/*epidemiology/mortality/pathology
;
Incidence
;
Infant
;
Infant Mortality
;
Infant, Newborn
;
*Infant, Very Low Birth Weight
;
Male
;
Odds Ratio
;
Republic of Korea/epidemiology
;
Retrospective Studies
;
Severity of Illness Index
3.A asymptomatic rectal endometriosis with endometrial cyst.
Hyoung Min CHOI ; Sung Ki LEE ; Yoon Ho LEE ; Dong Hoon HWANG ; So Yeon PARK
Korean Journal of Obstetrics and Gynecology 1992;35(11):1679-1685
No abstract available.
Endometriosis*
;
Female
4.A case with GRIN2A mutation and its non-neurological manifestations
Soo Yeon LEE ; So Yoon JUNG ; Jeongho LEE
Journal of Genetic Medicine 2020;17(2):79-82
In epilepsy-aphasia spectrum (EAS) disorders, mutations in the glutamate receptor ionotropic N-methyl-D-aspartate type subunit 2A (GRIN2A) have become important for screening the disease. Research into the phenotypic variability of several types of neurologic impairment involving these mutations is in progress. However, the non-neurological problems related to these mutations are poorly understood. EAS disorders usually have epileptic, cognitive, or behavioral manifestations. In this case report, we present a female patient with epilepsy, delay in expressive language and social development, and intellectual disability with low intelligence quotient and memory quotient, but normal motor development. Through genetic analysis, she was found to have a missense and a nonsense mutation in GRIN2A (c.1770A>C; p.Lys509Asn and c.3187G>T; p.Glu1063*, respectively) and we consider the nonsense mutation as ‘pathogenic variant’. She was also discovered to have congenital hypothyroidism, growth hormone deficiency and Rathke’s cleft cyst in the brain, which were previously unknown features of GRIN2A mutation. Our findings should widen understanding of the spectrum of GRIN2A phenotypes, and emphasize the need for more research into the association between GRIN2A mutations and non-neurologic clinical presentations.
5.A Case of Parinaud Syndrome After Intracranial Hemorrhage.
So Yeon LEE ; Sang Won YOON ; Sung Mo KANG
Journal of the Korean Ophthalmological Society 2009;50(1):172-175
PURPOSE: To report one case of Parinaud syndrome after intracranial hemorrhage. CASE SUMMARY: A 45-year-old man visited our emergency department complaining of right-sided weakness and right-sided hypoesthesia. Intracranial hemorrhage in the left thalamus and intraventricular hemorrhage were noted upon brain computed tomography, and the patient was admitted to the department of neurosurgery. He complained of diplopia and upgaze palsy, and he was referred to the department of ophthalmology. The patient exhibited convergence-retraction nystagmus, light-near dissociation and vertical gaze limitation within 15 degrees. The best-corrected visual acuity of both eyes was 20/20, but convergence-retraction nystagmus and light-near dissociation still remained. Upgaze palsy was also not improved. CONCLUSIONS: Once symptoms manifest, Parinaud syndrome does not resolve except in patients with hydrocephalus. If the findings persist for more than 6 months, the likelihood of complete resolution is very small. We reported a case of typical Parinaud syndrome with upgaze palsy, convergence-retraction nystagmus and light-near dissociation after thalamic and intraventricular hemorrhage.
Brain
;
Diplopia
;
Dissociative Disorders
;
Emergencies
;
Eye
;
Hemorrhage
;
Humans
;
Hydrocephalus
;
Hypesthesia
;
Intracranial Hemorrhages
;
Middle Aged
;
Neurosurgery
;
Ocular Motility Disorders
;
Ophthalmology
;
Paralysis
;
Thalamus
;
Visual Acuity
6.The Effect of Visual Feedback of Head Angles With Using a Mobile Posture-Aware System on Craniocervical Angle and Neck and Shoulder Muscles Fatigue During Watching the Smartphone.
Su Jeong KIM ; So Yeon JEONG ; Tae Lim YOON
Journal of Korean Physical Therapy 2018;30(2):47-53
PURPOSE: To find the effect of visual feedback of head angle with using a mobile posture-aware system on craniocervical angle and neck and shoulder muscles fatigue for preventing or decreasing the forward head posture. METHODS: Twenty-four healthy young adults in Chungbuk to participate in this study. The subjects started to watch a movie clip for 10 minutes with visual feedback in 0°, 30°, and 60° of head angles. During the task, surface electromyography (EMG) was used to collect data from the upper trapezius (UT), sternocleidomasetoid muscle (SCM), cervical erecter spinae (CES) during watching the smartphone. Craniocervical angles were measured using a sagittal-view photograph of the subject in a sitting posture. A one-way repeated analysis of variance with a significant level of 0.05 used for statistical analysis. RESULTS: Craniocervical angle with 0° visual feedback was significantly greater than 30°and 60°. Craniocervical angle with 30° visual feedback was significantly greater than 60°. In addition, MDF of UT muscles in 0° and 30° of visual feedback was significantly greater than 60°. CONCLUSION: We concluded that 0° visual feedback of head angle with using a mobile posture-aware system would be beneficial to prevent or decrease forward head posture during watching a smartphone. We also could recommend using of 30° visual feedback in case of caring UT muscle fatigue primarily.
Chungcheongbuk-do
;
Electromyography
;
Fatigue*
;
Feedback, Sensory*
;
Head*
;
Humans
;
Muscle Fatigue
;
Muscles*
;
Neck*
;
Posture
;
Shoulder*
;
Smartphone*
;
Superficial Back Muscles
;
Young Adult
7.Depression and Related Factors of Children Using Community Child Center in Gwangju and Jeollanamdo
Sang-Eun YOON ; Mi Ah HAN ; Jong PARK ; So Yeon RYU
Journal of Agricultural Medicine & Community Health 2021;46(4):242-252
Objectives:
This study examined the current status of depression and related factors among children using community child center.
Methods:
A cross-sectional study selected children in grades 4-6 who used the Gwangju and Jeollanamdo community child center (n=224) using a convenience sampling method. General characteristics, family characteristics, children's emotional characteristics, children's school life environment and depression status were assessed using a self-reported questionnaire.
Results:
The average score of depression among children using community child center was 15.31±7.70 out of a total of 27. Fifty-eight (25.9%) children had depression above 22 points. Variables related to children's depression were shown as grade, subjective economic level awareness, after-school activities excluding local children's centers, presence of family members after school, and family structure.
Conclusions
The depression prevalence of children using community child center was higher. Policy support such as children's psychological support programs would be needed to reduce children's depression, and community child centers are expected to be effective in reducing children's depression if continuous child psychological support services are developed for children's mental health.
8.Transrectal or transvaginal ultrasoundguided biopsy for pelvic masses: external validation and usefulness in oncologic patients
So Yeon WON ; Hyun Soo KIM ; Sung Yoon PARK
Ultrasonography 2019;38(2):149-155
PURPOSE: The purpose of this study was to externally validate the diagnostic usefulness of transrectal ultrasound (TRUS) or transvaginal ultrasound (TVUS)-guided biopsy for pelvic masses, and to analyze the diagnostic performance of these methods in oncologic patients. METHODS: A consecutive series of 30 patients who underwent TRUS- or TVUS-guided biopsy for pelvic masses was included. Tissue samples were obtained using an 18-gauge core biopsy needle under local anesthesia for lesions detected on computed tomography or magnetic resonance imaging. We analyzed the rates of diagnostic biopsies upon pathologic examination and biopsy-related major complications requiring treatment. In diagnostic biopsy cases, the performance was also investigated for all patients and patients with underlying malignancy. RESULTS: The diagnostic biopsy rate was 93.3% (28 of 30) for all patients and 95.0% (19 of 20) for oncologic patients. No patients had major complications. In diagnostic biopsies, the sensitivity, specificity, positive and negative predictive value, and accuracy for identifying malignancy were 100% (17 of 17), 72.7% (8 of 11), 85.0% (17 of 20), 100% (8 of 8), and 89.3% (25 of 28) for all patients and 100% (14 of 14), 60.0% (3 of 5), 87.5% (14 of 16), 100% (3 of 3), and 89.5% (17 of 19) for oncologic patients, respectively. CONCLUSION: This study externally validated the feasibility and safety of TRUS- or TVUS-guided biopsy. In addition, these techniques appear to enable accurate pathologic diagnoses of pelvic masses in oncologic patients to be made safely and relatively noninvasively.
Anesthesia, Local
;
Biopsy
;
Diagnosis
;
Humans
;
Magnetic Resonance Imaging
;
Needles
;
Pelvis
;
Sensitivity and Specificity
;
Ultrasonography
9.Why Is a b-value Range of 1500–2000 s/mm2 Optimal for Evaluating Prostatic Index Lesions on Synthetic Diffusion-Weighted Imaging?
So Yeon CHA ; EunJu KIM ; Sung Yoon PARK
Korean Journal of Radiology 2021;22(6):922-930
Objective:
It is uncertain why a b-value range of 1500–2000 s/mm2 is optimal. This study was aimed at qualitatively and quantitatively analyzing the optimal b-value range of synthetic diffusion-weighted imaging (sDWI) for evaluating prostatic index lesions.
Materials and Methods:
This retrospective study included 92 patients who underwent DWI and targeted biopsy for magnetic resonance imaging (MRI)-suggested index lesions. We generated sDWI at a b-value range of 1000–3000 s/mm2 using dedicated software and true DWI data at b-values of 0, 100, and 1000 s/mm2 . We hypothesized that lesion conspicuity would be best when the background (i.e., MRI-suggested benign prostatic [bP] and periprostatic [pP] regions) signal intensity (SI) is suppressed and becomes homogeneous. To prove this hypothesis, we performed both qualitative and quantitative analyses.For qualitative analysis, two independent readers analyzed the b-value showing the best visual conspicuity of an MRIsuggested index lesion. For quantitative analysis, the readers assessed the b-value showing the same bP and pP region SI.The 95% confidence interval (CI) or interquartile range of qualitatively and quantitatively selected optimal b-values was assessed, and the mean difference between qualitatively and quantitatively selected b-values was investigated.
Results:
The 95% CIs of optimal b-values from qualitative and quantitative analyses were 1761–1805 s/mm2 and 1640– 1771 s/mm2 (median, 1790 s/mm2 vs. 1705 s/mm2 ; p = 0.003) for reader 1, and 1835–1895 s/mm2 and 1705–1841 s/mm2 (median, 1872 s/mm2 vs. 1763 s/mm2 ; p = 0.022) for reader 2, respectively. Interquartile ranges of qualitatively and quantitatively selected optimal b-values were 1735–1873 s/mm2 and 1573–1867 s/mm2 for reader 1, and 1775–1945 s/mm2 and 1591–1955 s/mm2 for reader 2, respectively. Bland-Altman plots consistently demonstrated a mean difference of less than 100 s/mm2 between qualitatively and quantitatively selected optimal b-values.
Conclusion
b-value range showing a homogeneous background signal may be optimal for evaluating prostatic index lesions on sDWI. Our qualitative and quantitative data consistently recommend b-values of 1500–2000 s/mm2 .
10.Why Is a b-value Range of 1500–2000 s/mm2 Optimal for Evaluating Prostatic Index Lesions on Synthetic Diffusion-Weighted Imaging?
So Yeon CHA ; EunJu KIM ; Sung Yoon PARK
Korean Journal of Radiology 2021;22(6):922-930
Objective:
It is uncertain why a b-value range of 1500–2000 s/mm2 is optimal. This study was aimed at qualitatively and quantitatively analyzing the optimal b-value range of synthetic diffusion-weighted imaging (sDWI) for evaluating prostatic index lesions.
Materials and Methods:
This retrospective study included 92 patients who underwent DWI and targeted biopsy for magnetic resonance imaging (MRI)-suggested index lesions. We generated sDWI at a b-value range of 1000–3000 s/mm2 using dedicated software and true DWI data at b-values of 0, 100, and 1000 s/mm2 . We hypothesized that lesion conspicuity would be best when the background (i.e., MRI-suggested benign prostatic [bP] and periprostatic [pP] regions) signal intensity (SI) is suppressed and becomes homogeneous. To prove this hypothesis, we performed both qualitative and quantitative analyses.For qualitative analysis, two independent readers analyzed the b-value showing the best visual conspicuity of an MRIsuggested index lesion. For quantitative analysis, the readers assessed the b-value showing the same bP and pP region SI.The 95% confidence interval (CI) or interquartile range of qualitatively and quantitatively selected optimal b-values was assessed, and the mean difference between qualitatively and quantitatively selected b-values was investigated.
Results:
The 95% CIs of optimal b-values from qualitative and quantitative analyses were 1761–1805 s/mm2 and 1640– 1771 s/mm2 (median, 1790 s/mm2 vs. 1705 s/mm2 ; p = 0.003) for reader 1, and 1835–1895 s/mm2 and 1705–1841 s/mm2 (median, 1872 s/mm2 vs. 1763 s/mm2 ; p = 0.022) for reader 2, respectively. Interquartile ranges of qualitatively and quantitatively selected optimal b-values were 1735–1873 s/mm2 and 1573–1867 s/mm2 for reader 1, and 1775–1945 s/mm2 and 1591–1955 s/mm2 for reader 2, respectively. Bland-Altman plots consistently demonstrated a mean difference of less than 100 s/mm2 between qualitatively and quantitatively selected optimal b-values.
Conclusion
b-value range showing a homogeneous background signal may be optimal for evaluating prostatic index lesions on sDWI. Our qualitative and quantitative data consistently recommend b-values of 1500–2000 s/mm2 .