1.HDL cholesterol, copper, ceruloplasmin, zinc, iron values of the blood in newborn.
Kyeong Sang KIM ; Chun Hang LEE ; Hong Jin LEE ; Won Ill PARK ; Kyung Ja LEE ; Tae Hyon YOON ; Won Chan TAE
Journal of the Korean Pediatric Society 1992;35(8):1096-1101
No abstract available.
Ceruloplasmin*
;
Cholesterol, HDL*
;
Copper*
;
Humans
;
Infant, Newborn*
;
Iron*
;
Zinc*
2.A Study on the Incidence and Patterns of Early and Late Seizures after Head Injury.
Hang Woo LEE ; Sun Il LEE ; Yong Tae JUNG ; Byung Ook CHOI ; Soo Chun KIM ; Jae Hong SIM
Journal of Korean Neurosurgical Society 1996;25(7):1421-1428
Post-traumatic seizure is a known consequence of head trauma and a major public problem. But the surveillance study of this problem in our country is very rate. The purpose of the current study was to determine the incidence, clinical patterns and the outcome of the post-traumatic seizure in our institute. A retrospective review of management in 5053 patients with head injury was performed in our department between 1983 and 1992. In our series, the frequency of post-traumatic epilepsy was 254 patients, giving 1 5.0% incidence rate(early seizure occurred in 2.2% and late seizure occurred in 2.8% of patients). Of these, the records of 203 patients who received follow-up care for at least 2 years was reviewed. The first early epileptic attack occurred within 24 hours of injury in one third of the cases(33.3%), and the first late epileptic attack occurred within 1 year was about two thirds of the cases(64.6%). On CT scan findings, the early epilepsy had a higher incidence in scans that showed diffuse brain swelli ng and the late epilepsy had a higher incidence in subdural and intracerebral hematoma. 57.5% of early seizure were focal type, and 55.2% of late seizure were generalized convulsive seizure. The outcome of severe head injury patients with early seizure was better than that of late seizure group. The severity of head injury was related to the occurrence of late post-traumatic seizure.Development of new antiepileptic drugs, increasing knowledge of preventing post-traumatic sequelae and demand for surgical treatments have allowed the reduction of the incidence of the post-traumatic seizures. But further survey or study is recommanded in order to achieve more improvement in the management of post-traumatic seizures.
Anticonvulsants
;
Brain
;
Craniocerebral Trauma*
;
Electroencephalography
;
Epilepsy
;
Epilepsy, Post-Traumatic
;
Follow-Up Studies
;
Head*
;
Hematoma
;
Humans
;
Incidence*
;
Retrospective Studies
;
Seizures*
;
Tomography, X-Ray Computed
3.Familial Occurrence of Von hippel-Lindau Disease: Case Report.
Hang Woo LEE ; Sun Il LEE ; Yong Tae JUNG ; Byung Ook CHOI ; Soo Chun KIM ; Jae Hong SIM
Journal of Korean Neurosurgical Society 1996;25(7):1500-1508
Hemangioblastoma is an uncommon tumor of the central nervous system, accounting for only 1 % to 2.5% of all intracranial neoplasms. Hemangioblastoma can occur either sporadically or as a manifestation of von Hippel-Lindau diseasean inherited disorder of the autosomal dominant trait-characterized by tumors or tumor-like lesions developing in several organs including angioma of retina, pheochromocytoma, cyst or carcinoma in kidney and pancreas. We have encountered a family in which two male members were histologically diagnosed as suffering from von Hippel-Lindau disease and another male member was clinically suspected of suffering from spinal hemangioblastoma. The pathophysiology and genetic aspect of von Hippel-Lindau disease are discussed with review of literatures.
Brain Neoplasms
;
Central Nervous System
;
Hemangioblastoma
;
Hemangioma
;
Humans
;
Kidney
;
Male
;
Pancreas
;
Pheochromocytoma
;
Retina
;
von Hippel-Lindau Disease*
4.Detection of Cytokine Gene Expression in Ovarian Cancer Tissues.
Sung Hee JEONG ; Sang Sik CHUN ; Young Lae CHO ; Taek Hoo LEE ; Youn Joo JEONG ; hang Jin KIM ; Jung Chul KIM
Korean Journal of Gynecologic Oncology and Colposcopy 1994;5(3):29-38
The variable clinical responses seen with rnost cancer immunotherapy suggests that there is a large interindividual variation in immunoiogic response to tumors. One of the key functional parameter.s of an immune response is the loca1 production of cytokines. These multifunctional cytokines have been implicated in growth stimulation and cytotoxicity of ovarian tumor celle. To determine the presence and quantities of cytokines in ovarian cancer tissue, the cons-titutive expression of cytokine mRNA in biopsies from epithelial ovarian carcinomas was determined by using a PCR-assisted mRNA amplification asssy(RT-PCR). Using a set of cytokine-specific primers for 14 different cytokines, distinctive patterns of cytokine gene expression between normal and malignant ovarian tissues could be found. Several cytokines were detected even in the norma1 ovarian tissue including IL-1A, IL-8, TGF-A, TGF-B, GM-CSF, and IL,-2R. In case of the ovarian cancer, the signals were more intense than normal and we could detect the expression of some other cytokines, such as IL-1B, IL- 4, IL-6, IL-l0, TNF, and INF-T, which could not be detected in normal tissue. The presence of eytokines in ovarian cancer tissue could be impartant in the growth and development of cancer, more specifically, in relation to host immune responsiveness.
Biopsy
;
Cytokines
;
Gene Expression*
;
Granulocyte-Macrophage Colony-Stimulating Factor
;
Growth and Development
;
Immunotherapy
;
Interleukin-6
;
Interleukin-8
;
Ovarian Neoplasms*
;
RNA, Messenger
5.Anaplasma sp. and hemoplasma infection in leopard cats (Prionailurus bengalensis euptilurus) from Korea.
Jusun HWANG ; Dae Hyun OH ; Hang LEE ; Myung Sun CHUN
Journal of Veterinary Science 2015;16(3):385-388
This study examined the occurrence of Anaplasma spp. and hemoplasma infection in leopard cats, Prionailurus bengalensis euptilurus, in Korea. Twenty-nine biological samples were tested by molecular analysis. Two (6.9%) and eight (27.6%) tested specimens were positive for Anaplasma bovis and hemoplasma infection, respectively. Based on our results, Anaplasma/Ehrlichia spp. and hemoplasma are regularly infecting leopard cat populations of Korea. Considering their endangered status, regular monitoring of infection by arthropod-borne pathogens known to cause clinical symptoms in feline hosts such as Anaplasma/Ehrlichia spp. and hemoplasma would be crucial as part of ongoing conservation efforts.
Anaplasma/*isolation & purification
;
Anaplasmosis/*epidemiology/microbiology
;
Animals
;
DNA, Bacterial/genetics
;
*Felidae
;
Molecular Sequence Data
;
Mycoplasma/*isolation & purification
;
Mycoplasma Infections/epidemiology/microbiology/*veterinary
;
Phylogeny
;
Polymerase Chain Reaction/veterinary
;
RNA, Ribosomal, 16S/genetics
;
Republic of Korea/epidemiology
;
Sequence Analysis, DNA/veterinary
6.Infections by pathogens with different transmission modes in feral cats from urban and rural areas of Korea.
Jusun HWANG ; Nicole GOTTDENKER ; Dae Hyun OH ; Hang LEE ; Myung Sun CHUN
Journal of Veterinary Science 2017;18(4):541-545
In this study, we examine prevalences of three infectious pathogens with different transmission modes (Bartonella henselae, hemoplasma, and Toxoplasma gondii) in feral cats from urban and rural habitats. Infection status of the three pathogens in blood samples (n = 117) was determined through molecular or serological diagnostic methods. Overall prevalence of hemoplasma, Toxoplasma gondii, and Bartonella henselae was 47.9%, 50%, and 35.7%, respectively. Comparing the two habitats, only seroprevalence of Bartonella henselae was significantly higher in urban cats. Based on the results, we discuss how pathogens with distinct transmission modes may show different prevalence between urban and rural habitat types.
Animals
;
Bartonella henselae
;
Cats*
;
Ecosystem
;
Korea*
;
Prevalence
;
Seroepidemiologic Studies
;
Toxoplasma
7.Clinical Characteristics of Acute Toxic Liver Injury.
Jin Bae KIM ; Joo Hyun SOHN ; Hang Lak LEE ; Jong Pyo KIM ; Dong Soo HAN ; Joon Soo HAHM ; Dong Hoo LEE ; Chun Suhk KEE
The Korean Journal of Hepatology 2004;10(2):125-134
BACKGROUND/AIMS: Recently, acute toxic liver injury has been reported to be the most common cause of acute hepatitis. The frequency and clinical manifestations of acute toxic liver injury was evaluated. METHODS: The medical records of 68 patients demonstrating clinically significant acute toxic liver injury were retrospectively reviewed. Patients with mild biochemical abnormalities were excluded. RESULTS: The annual percentage of toxic liver injury ranged from 50% to 90% among acute hepatitis groups. Among the causes, prescribed drugs (group D) accounted for 55%, herbs or plant products (group H) for 42% and both accounted for 3%. Antibiotics and anti-inflammatory drugs were the most common agents (78%) among group D. The mean age of the patients was 43 and 70% of patients were female. Of the population, common symptoms were jaundice, weakness, fatigue, and nausea. Initial ALT and AST levels were 847 +/- 879 and 664 +/- 625 IU/L, and initial total bilirubin was 7.5 +/- 8.1 mg/dL. Acute toxic liver injury occurred after a mean of 32 days after first exposure. Liver injury resolved within a mean of 32 days. Hepatocellular, mixed, and cholestatic type was 45.2%, 32.3%, 22.5%, respectively. CONCLUSIONS: Recently, acute toxic liver injury has been the most common cause of acute hepatitis in Korea. Prescribed drugs and herbs or plant products are equally important etiologic agents of toxic liver injury. However, etiologic difference may not affect clinical courses or outcomes. A nationwide investigation of the hepatotoxicity of drugs, herbs or other plant products is required.
Acute Disease
;
Adult
;
English Abstract
;
Female
;
Hepatitis, Toxic/*diagnosis/etiology
;
Humans
;
Male
;
Middle Aged
8.A Case of Primary Hepatic Leiomyosarcoma Presenting with Multiple Subcutaneous Scalp Mass.
Hang Lak LEE ; Joo Hyun SOHN ; Jin Bae KIM ; Dong Soo HAN ; Yong Chul JEON ; Joon Soo HAHM ; Dong Hoo LEE ; Chun Suk KEE ; Yong Wook PARK
The Korean Journal of Gastroenterology 2005;46(3):233-236
Leiomyosarcoma is an uncommon tumor which arises from various sites including uterus, stomach, retroperitoneum, superficial soft tissues, bladder, kidney, and lung. Primary hepatic leiomyosarcoma is a very rare tumor and fewer than 70 cases of primary hepatic leiomyosarcoma have been reported since the first publication in Japan. And there was only one case report of cutaneous metastasis from hepatic leiomyosarcoma. We recently experienced a case of primary hepatic leiomyosarcoma presenting as subcutaneous palpable mass. Herein we report this case with a review of literatures.
Head and Neck Neoplasms/*secondary
;
Humans
;
Leiomyosarcoma/diagnosis/*secondary
;
Liver Neoplasms/diagnosis/*pathology
;
Male
;
Middle Aged
;
*Scalp
;
Skin Neoplasms/*secondary
9.Tumor - specific Virus Replication and Cytotoxicity of E1B 55 kD - deleted Adenovirus.
Jaesung KIM ; Boyoung LEE ; Jinahn KIM ; Joong Bae AHN ; Joon Oh PARK ; Nae Chun YOO ; Joo Hang KIM ; Jae Kyung ROH ; Jin Sik MIN ; Byung Soo KIM ; Heuiran LEE
Journal of the Korean Cancer Association 2000;32(1):200-209
PURPOSE: To overcome the limitations of cancer gene therapy using replication-incom- petent adenovirus, we generated E1B 55 kD-deleted adenovirus (YKL-1) by polymerase chain reaction (PCR) and homologous recombination. We then investigated tumor-specific virus replication and cytotoxicity of YKL-1 in vitro and in vivo. MATERIALS AND METHODS: YKL-1 was constructed by reintroducting E1A and E1B 19 kD into pTG-CMV El/E3-deficient adenoviral vector and inducing homologous recombination in E. coli. The recombinant vector pYKL-1 was transfected into 293 cells to generate YKL-1. The properties of newly constructed YKL-1 was defined by PCR and immuno- blotting analysis. Virus replication was examined by infecting human normal and cancer cells on 6-wells at multiplicity of infection (MOI) of 10 for 3 days. Virus was then recovered and titered. Cytopathic effect was analyzed by infecting human normal and cancer cells on 24-wells at MOIs of 10, 1 or 0.1 for 7 to 10 days and staining them with crystal violet solution. Inhibition of tumor growth was examined in human cancer cell xenografts in nu/nu mice by intratumoral injection of YKL-l. RESULTS: PCR and immunoblotting analysis confirmed that YKL-1 contained E1A and E1B 19 kD but not E1B 55 kD. In human normal cells, virus replication and subsequent cytopathic effect of E1B 55 kD-deleted adenovirus YKL-1 was markedly attenuated by larger than 2 to 3 log in magnitude, compared to that of wild-type ad-XJ. In contrast, YKL-1 was capable of replicating and inducing cytotoxicity i.n most human cancer cells. C33A and Hep3B containing p53 mutation were much more sensitive, whereas HeLa and H460 with wild type p53 were relatively resistant to YKL-1. Finally, the tumor growth was dramatically retarded by intratumoral injection of YKL-1 in C33A cervical cancer xenograft and the histology showed significant necrosis by intratumoral injection of YKL-1. CONCLUSION: The results here demonstrated the ability of preferential virus replication and cytotoxicity of ElB 55 kD-deleted adenovirus YKL-1 in human cancer cells. Therefore, these indicated a promising potential of YKL-1 as an antitumoral virus agent and a selective replication-competent virus vector.
Adenoviridae*
;
Animals
;
Genes, Neoplasm
;
Genetic Therapy
;
Gentian Violet
;
Heterografts
;
Homologous Recombination
;
Humans
;
Immunoblotting
;
Mice
;
Necrosis
;
Polymerase Chain Reaction
;
Uterine Cervical Neoplasms
;
Virus Replication*
10.Machine Learning-Based Computed Tomography-Derived Fractional Flow Reserve Predicts Need for Coronary Revascularisation Prior to Transcatheter Aortic Valve Implantation
Kai Dick David LEUNG ; Pan Pan NG ; Boris Chun Kei CHOW ; Keith Wan Hang CHIU ; Neeraj Ramesh MAHBOOBANI ; Yuet-Wong CHENG ; Eric Chi Yuen WONG ; Alan Ka Chun CHAN ; Augus Shing Fung CHUI ; Michael Kang-Yin LEE ; Jonan Chun Yin LEE
Cardiovascular Imaging Asia 2025;9(1):2-8
Objective:
Patients with severe symptomatic aortic stenosis are assessed for coronary artery disease (CAD) prior to transcatheter aortic valve implantation (TAVI) with treatment implications. Invasive coronary angiography (ICA) is the recommended modality but is associated with peri-procedural complications. Integrating machine learning (ML)-based computed tomography-derived fractional flow reserve (CT-FFR) into existing TAVI-planning CT protocol may aid exclusion of significant CAD and thus avoiding ICA in selected patients.
Materials and Methods:
A single-center, retrospective study was conducted, 41 TAVI candidates with both TAVI-planning CT and ICA performed were analyzed. CT datasets were evaluated by a ML-based CT-FFR software. Beta-blocker and nitroglycerin were not administered in these patients. The primary outcome was to identify significant CAD. The diagnostic performance of CT-FFR was compared against ICA.
Results:
On per-patient level, the sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and diagnostic accuracy were 89%, 94%, 80%, 97% and 93%, respectively. On per-vessel level, the sensitivity, specificity, PPV, NPV and diagnostic accuracy were 75%, 94%, 67%, 96% and 92%, respectively. The area under the receiver operative characteristics curve per individual coronary vessels yielded overall 0.90 (95% confidence interval 85%–95%). ICA may be avoided in up to 80% of patients if CT-FFR results were negative.
Conclusion
ML-based CT-FFR can provide accurate screening capabilities for significant CAD thus avoiding ICA. Its integration to existing TAVI-planning CT is feasible with the potential of improving the safety and efficiency of pre-TAVI CAD assessment.