1.Onychomycosis in the Patients with Connective Tissue Disease Treated with Corticosteroid.
Kwang Hyun CHO ; Jin Ho CHUNG ; Yoo Shin LEE ; Curie AHN ; Eui Chong KIM
Korean Journal of Dermatology 1986;24(5):618-622
We examined several kinds of immunocompromied patients for onyr,homycosis. The incidence of onychomycosis in the patients with connective tissue disease treated with corticosteroid was significantly higher than the incidences in the patients with solid tumors trcated with chemotherapeutic agents, in the patients with leukernia (WBC<1, 000/cm3), and in the control patients. Although conventional corticosteroid trcatment do not disseminate the superficial fungal infection, it may perpetuate the low grade dermatophytosis.
Connective Tissue Diseases*
;
Connective Tissue*
;
Humans
;
Immunocompromised Host
;
Incidence
;
Onychomycosis*
;
Tinea
2.Prenancy after 35 years of age.
Hong Sik PARK ; Eui Sik JUNG ; Chan Yong PARK ; Sung Jin CHO
Korean Journal of Obstetrics and Gynecology 1993;36(7):1542-1546
No abstract available.
3.Artificial Intelligence-Based Speech Analysis System for Medical Support
Eui-Sun KIM ; Dong Jin SHIN ; Sung Tae CHO ; Kyung Jin CHUNG
International Neurourology Journal 2023;27(2):99-105
Purpose:
Prior research has indicated that stroke can influence the symptoms and presentation of neurogenic bladder, with various patterns emerging, including abnormal facial and linguistic characteristics. Language patterns, in particular, can be easily recognized. In this paper, we propose a platform that accurately analyzes the voices of stroke patients with neurogenic bladder, enabling early detection and prevention of the condition.
Methods:
In this study, we developed an artificial intelligence-based speech analysis diagnostic system to assess the risk of stroke associated with neurogenic bladder disease in elderly individuals. The proposed method involves recording the voice of a stroke patient while they speak a specific sentence, analyzing it to extract unique feature data, and then offering a voice alarm service through a mobile application. The system processes and classifies abnormalities, and issues alarm events based on analyzed voice data.
Results:
In order to assess the performance of the software, we first obtained the validation accuracy and training accuracy from the training data. Subsequently, we applied the analysis model by inputting both abnormal and normal data and tested the outcomes. The analysis model was evaluated by processing 30 abnormal data points and 30 normal data points in real time. The results demonstrated a high test accuracy of 98.7% for normal data and 99.6% for abnormal data.
Conclusions
Patients with neurogenic bladder due to stroke experience long-term consequences, such as physical and cognitive impairments, even when they receive prompt medical attention and treatment. As chronic diseases become increasingly prevalent in our aging society, it is essential to investigate digital treatments for conditions like stroke that lead to significant sequelae. This artificial intelligence-based healthcare convergence medical device aims to provide patients with timely and safe medical care through mobile services, ultimately reducing national social costs.
4.A Case of Focal Choroidal Excavation Associated with Chronic Central Serous Chorioretinopathy.
Woo Jin KIM ; Nam Chun CHO ; Eui Yong KWEON
Journal of the Korean Ophthalmological Society 2015;56(4):627-631
PURPOSE: To report a case of focal choroidal excavation associated with central serous chorioretinopathy. CASE SUMMARY: A 48-year-old female presented with a 20-year history of visual disturbance. Focal choroidal excavation with neurosensory retinal detachment was detected in the right eye on optical coherence tomography. Fluorescein angiography showed hyperfluorescene in the area of excavation and multiple focal hyperfluorescences in the perimacular area. Vertically linear hyperfluorescene line was detected in the excavated area caused by retinal pigment epithelial atrophy. Based on the 2 diagnostic findings, we diagnosed a focal choroidal excavation with central serous chorioretinopathy. No progression was detected for 2 months.
Atrophy
;
Central Serous Chorioretinopathy*
;
Choroid*
;
Female
;
Fluorescein Angiography
;
Humans
;
Middle Aged
;
Retinal Detachment
;
Retinaldehyde
;
Tomography, Optical Coherence
5.Usefulness of Rapid PSA Kit(R).
Jin Seon CHO ; Eui Yul CHOI ; Sang Yol PARK ; Doo Jin LEE ; Chang Hee HONG ; Byung Soo CHUNG
Korean Journal of Urology 2003;44(1):6-11
PURPOSE: The incidence rate of prostate cancer has increased remarkably in Korea. The serum prostate specific antigen (PSA) value has been used for screening, although its clinical significance in prostate cancer screening is still inconclusive. However, if the measurement time was short and the cost was low, such an assay kit should be sufficient for prostate cancer screening. MATERIALS AND METHODS: We developed pared monoclonal antibodies against PSA which could be used in assay kits for PSA. The Rapid PSA Kit(R) used an immunochromatographic method to qualitatively judge a positive or negative result. Serum specimens from 78 men with benign prostate hyperplasia or prostate cancer were tested using the kit. RESULTS: The sensitivity of the kit was determined to be 4ng/ml. 33 samples had a value of greater than 5ng/ml, so were considered positive. 5 samples had values between 4ng/ml and 5ng/ml, of which 3 were positive. The other 40 samples had values less than 4ng/ml, and 11 of these were judged positive. These results indicated that the sensitivity and specificity of the Rapid PSA Kit(R) were 94.7 and 72.5%, respectively. CONCLUSIONS: Tests using the Rapid PSA Kit(R) can be easily performed at outpatient clinics or elsewhere. This kit is useful in the initial screening of prostate cancer as the results can be obtained within 15 minutes and the cost is lower than with ordinary serum PSA tests.
Ambulatory Care Facilities
;
Antibodies, Monoclonal
;
Humans
;
Hyperplasia
;
Incidence
;
Korea
;
Male
;
Mass Screening
;
Prostate
;
Prostate-Specific Antigen
;
Prostatic Neoplasms
;
Sensitivity and Specificity
6.Usefulness of Rapid PSA Kit(R).
Jin Seon CHO ; Eui Yul CHOI ; Sang Yol PARK ; Doo Jin LEE ; Chang Hee HONG ; Byung Soo CHUNG
Korean Journal of Urology 2003;44(1):6-11
PURPOSE: The incidence rate of prostate cancer has increased remarkably in Korea. The serum prostate specific antigen (PSA) value has been used for screening, although its clinical significance in prostate cancer screening is still inconclusive. However, if the measurement time was short and the cost was low, such an assay kit should be sufficient for prostate cancer screening. MATERIALS AND METHODS: We developed pared monoclonal antibodies against PSA which could be used in assay kits for PSA. The Rapid PSA Kit(R) used an immunochromatographic method to qualitatively judge a positive or negative result. Serum specimens from 78 men with benign prostate hyperplasia or prostate cancer were tested using the kit. RESULTS: The sensitivity of the kit was determined to be 4ng/ml. 33 samples had a value of greater than 5ng/ml, so were considered positive. 5 samples had values between 4ng/ml and 5ng/ml, of which 3 were positive. The other 40 samples had values less than 4ng/ml, and 11 of these were judged positive. These results indicated that the sensitivity and specificity of the Rapid PSA Kit(R) were 94.7 and 72.5%, respectively. CONCLUSIONS: Tests using the Rapid PSA Kit(R) can be easily performed at outpatient clinics or elsewhere. This kit is useful in the initial screening of prostate cancer as the results can be obtained within 15 minutes and the cost is lower than with ordinary serum PSA tests.
Ambulatory Care Facilities
;
Antibodies, Monoclonal
;
Humans
;
Hyperplasia
;
Incidence
;
Korea
;
Male
;
Mass Screening
;
Prostate
;
Prostate-Specific Antigen
;
Prostatic Neoplasms
;
Sensitivity and Specificity
7.Remineralization ability of fluoride varnish containing tricalcium phosphate by time.
Hyun Jae CHO ; Han Chul LEE ; Jae Young LEE ; Bo Hyoung JIN
Journal of Korean Academy of Oral Health 2017;41(1):3-8
OBJECTIVES: The aim of this study was to evaluate the degree of remineralization over time after application of fluoride varnish with and without tricalcium phosphate (TCP). METHODS: This in vitro study used extracted bovine lateral incisors without dental caries. Artificial lesions were created in the enamel specimens. The amount of mineral loss (ΔF(before)) was measured using quantitative light-induced fluorescence (QLF). Test fluoride varnishes (10 mg) were applied to the enamel surface of the specimen and dried for 4 min. No fluoride varnish was applied to the specimens in the control group. Each group was randomly assigned 12 specimens, and remineralization was allowed to occur to different time points (0.5, 1, 3, 6, 12, and 24 h) in each group. Specimens were washed with distilled water and dried with compressed air for 3 s. ΔF(after) was determined using QLF. RESULTS: When fluoride varnish containing TCP was applied for up to 6 h, the amount of mineral loss significantly increased, and when non-TCP fluoride varnish was applied for up to 12 hours, the amount of mineral loss significantly increased (P<0.05). However, the amount of mineral loss was higher in the control group. The difference between ΔF(before) and ΔF(after) (ΔΔF) increased over time. There was a significant difference between the TCP group and the control group after 6 h. The non-TCP group showed a significant difference after 24 h compared to the control group. After 12 h, significant differences were observed in the TCP group compared to both the non-TCP and control groups. CONCLUSIONS: This study showed that the degree of remineralization increased gradually over time after fluoride varnish application compared to the control group. In particular, fluoride varnish containing TCP showed better remineralization capability than varnish without TCP.
Compressed Air
;
Dental Caries
;
Dental Enamel
;
Fluorescence
;
Fluorides*
;
Fluorides, Topical
;
In Vitro Techniques
;
Incisor
;
Miners
;
Paint*
;
Water
8.Multiple Lumbar Intradural Dermoid Cysts without Spinal Dysraphism.
Gun Woo WON ; Sang Jin KIM ; Do Sang CHO ; Eui Kyo SEO
Journal of Korean Neurosurgical Society 2004;36(6):505-507
We report a rare case of lumbar intradural dermoid cysts. A 19 year-old male presented with low back pain for 3years. Physical examination revealed no abnormalities including skin lesions. On the magnetic resonance images, multiple intradural extramedullary cystic lesions were found in the lumbar region. These lesions were removed surgically. Histologically, the mass turned out to be a dermoid cyst. We think those were unusual intraspinal dermoid cysts because they were not associated with other congenital spinal malformation, and located in the intradural extramedullary region. We report this case of lumbar dermoid cysts with a review of literatures.
Dermoid Cyst*
;
Humans
;
Low Back Pain
;
Lumbosacral Region
;
Male
;
Physical Examination
;
Skin
;
Spinal Dysraphism*
;
Young Adult
9.Expression of Uchl1 in the Dental Epithelium during Mouse Tooth Development.
Hyang Seok KIM ; Dong Won KIM ; Jin Young YANG ; Eun Ha JANG ; Tak Heun KIM ; Eui Sic CHO
Korean Journal of Physical Anthropology 2007;20(3):235-244
Tooth is formed by the reciprocal interactions between the ectoderm and ectomesenchyme derived from neural crest. It has not been clear that neuronal factors involved in the morphogenesis and differentiation of tooth. To identify the roles of neuronal factors during the tooth development, the expression patterns and localization of Uchl1 were investigated in the developing mouse tooth germ by in situ hybridization and immunohistochemistry. Uchl1 transcripts were weakly expressed in the oral epithelium and dental lamina at bud stage. However, expression of Uchl1 was not found in the oral epithelium from cap stage and observed in the inner enamel epithelium, stellate reticulum and dental papilla. From the bell stage, Uchl1 was expressed in the inner enamel epithelium and ameloblasts. Uchl1, was appeared to be localized in the inner enamel epithelium and differentiating ameloblasts of molar and incisors at neonates. Uchl1 was localized strongly in the fully differentiated ameloblasts and adjacent papillary layer whereas localized weakly in the odontoblasts of the molar at postnatal day 5. From these results, Uchl1 was expressed and localized in the differentiating dental epithelium and ameloblasts during tooth development. The results suggest that neuronal protein, Uchl1 may play roles in the histo- and cyto-differentiation of non-neuronal dental epithelium.
Ameloblasts
;
Animals
;
Dental Enamel
;
Dental Papilla
;
Ectoderm
;
Epithelium*
;
Humans
;
Immunohistochemistry
;
In Situ Hybridization
;
Incisor
;
Infant, Newborn
;
Mice*
;
Molar
;
Morphogenesis
;
Neural Crest
;
Neurons
;
Odontoblasts
;
Reticulum
;
Tooth Germ
;
Tooth*
10.Large Ossified Rathke's Cleft Cyst: A Case Report and Review of the Literature.
Choong Hyun LEE ; Eui Kyo SEO ; Yong Jae CHO ; Sang Jin KIM
Journal of Korean Neurosurgical Society 2008;44(4):256-258
We report a rare case of symptomatic Rathke's cleft cyst with thick calcified wall. Brain CT scans revealed a large cystic mass with round thick calcified wall. In this case, we selected the pterional approach instead of transsphenoidal approach due to the possibility of cystic craniopharyngioma. Histopathologically, it was calcified Rathke's cleft cyst with focal epithelial metaplasia. This case illustrates that calcification of the suprasellar cyst does not always suggest craniopharyngioma and the calcification pattern of Rathke's cleft cyst is different from that of the craniopharyngioma.
Brain
;
Central Nervous System Cysts
;
Craniopharyngioma
;
Metaplasia