1.Idiopathic Hypercalciuria in Children.
Kyung Ha RYU ; Seung Joo LEE ; Keun LEE ; Jae Sun JUNG
Journal of the Korean Pediatric Society 1989;32(6):809-815
No abstract available.
Child*
;
Humans
;
Hypercalciuria*
2.Clustered Microcalcifications on Mammography: Histopathologic Correlation in Benign and Malignant Lesions.
Mi Hye KIM ; Woo Hee JUNG ; Ki Keun OH ; Sock Jong RYU
Journal of the Korean Radiological Society 1995;32(2):331-336
PURPOSE: To evaluate differential points of clustered microcalcification in malignant and benign lesions on histopathology and correlate with mammographic findings. MATERIALS AND METHODS: Authors evaluated differential points of malignant and benign calcifications in histopathologically confirmed 24 cases. In two patients, mapping studies and paraffin block mammographic examinations were done to correlate calcification on mammography with histopathologic morphology. RESULT: On histopathology, malignant calcifications were located in ductal lumen, while benign ones were usually located in ductal epithelium(p<0.05). However, associated three benign lesions of the 10 malignant lesions showed still benign calcifications adjacent to proven cancer. The typical malignant calcifications were the shape of lamination, while benign calcifications showed granular and salty on light microscope. In 2 mapping studies, malignant-looking calcifications within the area of predominant benign calcifications yielded atypical ductal hyperplasia. Mammographic pepper, granular, punctate, salty and S-shaped calcifications were correlated with granular and salty calcification on light microscope. Mammographic linear, branching, comma, tadpole and wormiform calcifications were correlated with histopathologic laminated calcification. CONCLUSION: Authors have recognized about characteristics of malignant Vs. benign clustered microcalcifications on histopathology. Authors concluded that if malignant-looking calcification such as linear, branching, comma, tadpole and wormiform are present in an are a of predominant benign calcifications, specimen radiographic correlation and mapping study will be necessary for better demonstration of the atypical ductal hyperplasia, hidden or associated breast cancer.
Breast Neoplasms
;
Humans
;
Hyperplasia
;
Larva
;
Mammography*
;
Paraffin
4.A Study of the Usefulness of the Bispectral Index Monitor During Pediatric Procedural Sedation by Rectal Thiopental Administration in the Emergency Department.
Jung Keun KWAK ; Gyu Chong CHO ; Ji Young RYU ; Ji Young RYU
Journal of the Korean Society of Emergency Medicine 2007;18(5):399-405
PURPOSE: Recently, the bispectral index monitor has been promoted as an objective measure of sedation depth during pediatric procedural sedation in the emergency department (ED). However, rectal administration of thiopental sodium for pediatric procedural sedation has not been validated. METHODS: Patients aged one to seven years and undergoing primary closure procedures for simple facial and hand laceration in the ED were enrolled. Procedural sedation was performed by rectal administration of thiopental sodium. The bispectral index score and the Ramsay Sedation Scale were recorded every 10 minutes during sedation. The investigator and treating physician were blinded to bispectral index scores, which were later correlated with the Ramsay Sedation Scales values. Receiver operator characteristic (ROC) curves were conducted to determine the ability of the bispectral index score to discriminate various thresholds of sedation depth. RESULTS: One hundred thirty paired measurements were obtained from 12 patients. The Spearman's correlation coefficient for paired measurements, was -0.906 (95% confidence interval: [-9.8] ~ [-8.1], p<0.001). ROC curve analysis demonstrated a high discriminatory power for bi-spectral index scores in predicting the level of sedation, with areas under the curve at least 0.95 for all Ramsay Sedation Scale thresholds. CONCLUSION: Bispectral index monitoring can serve as a useful, objective measure of sedation depth in pediatric procedural sedation with rectal administration of thiopental sodium in the ED.
Administration, Rectal
;
Consciousness Monitors*
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Emergencies*
;
Emergency Service, Hospital*
;
Hand
;
Humans
;
Lacerations
;
Research Personnel
;
ROC Curve
;
Thiopental*
;
Weights and Measures
5.Delayed recovery of neuromuscular blockade by rocuronium in a hypothermic patient during a laparoscopic procedure: A case report.
Ji Keun RYU ; Byung Jun LEE ; Kyung A YANG ; Ouk JUNG
Korean Journal of Anesthesiology 2009;56(2):195-199
Perioperative hypothermia can occur frequently and lead to various complications. Laparoscopic procedures do not require a large incision or exposure of the viscera, but a prolonged and high pressure procedure can lead to unexpected hypothermia. Hypothermia prolongs the time-course of non-depolarizing neuromuscular blocking agents by reducing the plasma clearance significantly. Rocuronium, a new aminosteroidal neuromuscular blocking agent, can be influenced by reductions in plasma clearance and prolong the duration of action. Therefore, patients must receive ventilator care in the ICU. Aggressive measures were taken for hypothermia, and the patient was discharged without any complications. We report a case of delayed of neuromuscular blockade by rocuronium in a hypothermic patient during a laparoscopic procedure with a brief review of literatures.
Androstanols
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Humans
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Hypothermia
;
Laparoscopy
;
Neuromuscular Blockade
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Neuromuscular Blocking Agents
;
Plasma
;
Ventilators, Mechanical
;
Viscera
6.A Study of the Expression of p53 and the Product of bcl-2 in Early and Advanced Gastric Cancers.
Hyuk Jai SHIN ; Doo Sun LEE ; Jung Teak KIM ; Min JUNG ; Jin Woo RYU ; Jong Keun PARK ; Bong Jin KANG
Journal of the Korean Surgical Society 2000;59(1):39-45
PURPOSE: To evaluate of the role in carcinogenesis of p53 over-expression and bcl-2 inhibition in early gastric and advanced gastric cancers, we investigated the immunohistochemical tissue status of 31 primary early gastric-cancer patients and 31 primary advanced gastric-cancer patients. METHODS: DO7, the monoclonal antiserum to the P53 protein, and clone 124, the monoclonal antibody to the bcl-2 protein, were used for the immunohistochemical analysis of the 31 surgically resected primary early gastric cancer specimens and the 31 surgically resected advanced gastric-cancer specimens. The expressions were scored and divided into negative, positive, low expression, and overexpression. RESULTS: The clinicopathologic parameter; tumor depth of invasion, histologic type, and differentiation, were not related with the expression status of p53 or bcl-2. Of the 31 primary early gastric-cancer patients, 14 exhibited p53 overexpression and 16 showed negative the bcl-2 expression; 5 cases had both p53 overexpression and negative bcl-2 expression. Of the 31 advanced gastric cancer patients, 19 showed the p53 overexpression, and negative bcl-2 expression, 15 exhibited both p53 overexpression and negative bcl-2 expression. CONCLUSION: These results suggest that cell cycle alteration and apoptosis control by p53 and bcl-2 may play roles in the carcinogenesis of gastric cancer. However, there are many other mediators that may facilitate carcinogenesis. This study proved that bcl-2 is a valuable prognostic factor.
Apoptosis
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Carcinogenesis
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Cell Cycle
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Clone Cells
;
Humans
;
Stomach Neoplasms*
7.Unusual case report as imported sparganosis.
Kyung Sik KO ; Hyung Keun CHUNG ; Myung Jae PARK ; Hwan Jo SUH ; Jung Youl CHUN ; Kyung Nam RYU ; Hyun Jong YANG ; You Jung CHO ; Yung Han PAIK
Korean Journal of Infectious Diseases 1992;24(1):65-69
No abstract available.
Sparganosis*
9.Taxonomy of Botryotrichum luteum sp. nov. based on Morphology and Phylogeny Isolated from Soil in Korea
Jung-Joo RYU ; Kallol DAS ; Seong-Keun LIM ; Soo-Min HONG ; Seung-Yeol LEE ; Hee-Young JUNG
Mycobiology 2023;51(2):72-78
In this study, a fungal strain KNUF-22-025 belonging to the genus Botryotrichum was isolated from the soil in Korea. The cultural and morphological characteristics of this strain differed from those of closely related species. On malt extract agar, strain KNUF-22-025 showed slower growth than most of the related species, except B. domesticum. The conidia size (9.6– 21.1 Â 9.9–18.4 mm) of strain KNUF-22-025 was larger than those of B. piluliferum, B. domesticum, and B. peruvianum but smaller than those of B. atrogriseum and B. iranicum. Conidiophores in strain KNUF-22-025 (137 mm) were longer than those in other closely related species but shorter than those in B. atrogriseum. Multi-locus analysis of molecular markers, such as ITS, 28S ribosomal DNA, RBP2, and TUB2 revealed that strain KNUF-22-025 was distinct from other Botryotrichum species. Thus, this strain is proposed as a novel species based on morphological characteristics along with molecular phylogeny and named Botryotrichum luteum sp. nov.
10.Molecular Phylogeny and Morphology of Tolypocladium globosum sp. nov.Isolated from Soil in Korea
Kallol DAS ; Jung-Joo RYU ; Soo-Min HONG ; Seong-Keun LIM ; Seung-Yeol LEE ; Hee-Young JUNG
Mycobiology 2023;51(2):79-86
In this study, fungal strains designated as KNUF-22-14A and KNUF-22-15A were isolated from soil samples in Korea. These two strains were identified based on cultural and morphological characteristics as well as phylogenetic analyses and were found to be morphologically and phylogenetically identical. Upon their morphological comparison with closely related species, such as Tolypocladium album, T. amazonense, T. endophyticum, T. pustulatum,and T. tropicale, a difference in the size of short phialides [0.6–2.4(–9.3) Â 0.8–1.4 mm] was observed. Meanwhile, these strains had larger conidia (1.2–3.0 Â 1.2–3.0 mm) than T. album, T.amazonense, T. endophyticum, and T. tropicale and smaller conidia than T. pustulatum. Phylogenetic analyses using a multi-locus datasets based on ITS, LSU, and SSU showed that KNUF-22-14A and KNUF-22-15A formed a distinct cluster from previously identified Tolypocladium species. Thus, these fungal strains isolated from soil in Korea are proposed as a novel species according to their characteristics and are named Tolypocladium globosum sp. nov.