1.Updated Trans-Ethnic Meta-Analysis of Associations between Inflammation-Related Genes and Intracranial Aneurysm
Eun Pyo HONG ; Sung Min CHO ; Jong Kook RHIM ; Jeong Jin PARK ; Jun Hyong AHN ; Dong Hyuk YOUN ; Jong-Tae KIM ; Chan Hum PARK ; Younghyurk LEE ; Jin Pyeong JEON ;
Journal of Korean Neurosurgical Society 2023;66(5):525-535
Objective: : We performed an expanded multi-ethnic meta-analysis to identify associations between inflammation-related loci with intracranial aneurysm (IA) susceptibility. This meta-analysis possesses increased statistical power as it is based on the most data ever evaluated. Methods: : We searched and reviewed relevant literature through electronic search engines up to August 2022. Overall estimates were calculated under the fixed- or random-effect models using pooled odds ratio (OR) and 95% confidence intervals (CIs). Subgroup analyses were performed according to ethnicity. Results: : Our meta-analysis enrolled 15 studies and involved 3070 patients and 5528 controls including European, Asian, Hispanic, and mixed ethnic populations. Of 17 inflammation-related variants, the rs1800796 locus (interleukin [IL]-6) showed the most significant genome-wide association with IA in East-Asian populations, including 1276 IA patients and 1322 controls (OR, 0.65; 95% CI, 0.56–0.75; p=3.24×10-9) under a fixed-effect model. However, this association was not observed in the European population (OR, 1.09; 95% CI, 0.80–1.47; p=0.5929). Three other variants, rs16944 (IL-1β), rs2195940 (IL-12B), and rs1800629 (tumor necrosis factor-α) showed a statistically nominal association with IA in both the overall, as well as East-Asian populations (0.01
Conclusion
: Our updated meta-analysis with increased statistical power highlights that rs1800796 which maps on the IL-6 gene is associated with IA, and in particular confers a protective effect against occurrence of IA in the East-Asian population.
2.PTEN Mutation Identified in Patient Diagnosed with Simultaneous Multiple Cancers.
Hye Sung WON ; Eun Deok CHANG ; Sae Jung NA ; In Yong WHANG ; Dong Soo LEE ; Sun Hyong YOU ; Yong Seok KIM ; Jeong Soo KIM
Cancer Research and Treatment 2019;51(1):402-407
PTEN hamartoma tumor syndrome is a spectrum of disorders characterized by unique phenotypic features including multiple hamartomas caused by mutations of the tumor suppressor gene PTEN. Cowden syndrome and Bannayan–Riley–Ruvalcaba syndrome are representative diseases, and both have several common clinical features and differences. Because PTEN mutations are associated with an increased risk of malignancy including breast, thyroid, endometrial, and renal cancers, cancer surveillance is an important element of disease management. We report a germline mutation of the PTEN (c.723dupT, exon 7) identified in a young woman with a simultaneous occurrence of breast cancer, dermatofibrosarcoma protuberans, and follicular neoplasm. This case suggests that it is critical for clinicians to recognize the phenotypic features associated with these syndromes to accurately diagnose them and provide preventive care.
Breast
;
Breast Neoplasms
;
Dermatofibrosarcoma
;
Disease Management
;
Exons
;
Female
;
Genes, Tumor Suppressor
;
Germ-Line Mutation
;
Hamartoma
;
Hamartoma Syndrome, Multiple
;
Humans
;
Kidney Neoplasms
;
Thyroid Gland
3.Tigecycline Treatment for Infections Caused by Multidrug-Resistant Pathogens.
Mi Jung LEE ; A Young SEO ; Sang Soo BAE ; Dong Hyong JEONG ; Kyung Hwa YOON ; Byung Sik HWANG ; Sung Hoon KANG ; Dae Myung OH ; Ki Tae KWON ; Shin Won LEE ; Do Young SONG
Yeungnam University Journal of Medicine 2011;28(2):133-144
BACKGROUND: Tigecycline (TIG), a new broad-spectrum glycylcycline with anti-multidrug-resistant-(MDR)-pathogen activity, was launched in March 2009 in South Korea, but there are insufficient clinical studies on its use in the country. As such, this study was performed to analyze cases of severe MDR-pathogen-caused infections treated with TIG. METHODS: Patients treated with TIG within the period from May 2009 to June 2010 were enrolled in this study. Their clinical and microbiologic data were reviewed retrospectively. RESULTS: Twenty-one patients were treated with TIG for complicated skin and soft-tissue infections (cSSTIs) (42.9%), complicated intra-abdominal infections (cIAIs) (38.1%), or pneumonia (19.1%) caused by MDR pathogens like carbapenem-resistant Acinetobacter baumannii (76.2%), methicillin-resistant Staphylococcus aureus (61.9%), extended-spectrum beta-lactamase-producing Escherichia coli and Klebsiella pneumoniae (38.1%), and penicillin-resistant Enterococcus species (33.3%). Thirteen patients (61.9%) had successful clinical outcomes while five (23.8%) died within 30 days. The rate of clinical success was highest in cSSTI (77.8%), followed by cIAI (50%) and pneumonia (50%), and the mortality rate was highest in pneumonia (50%), followed by cIAI (25%) and cSSTI (11.1%). CONCLUSION: Tigecycline therapy can be an option for the treatment of severe MDR-pathogen-caused infections in South Korea. Due to its high risk of failure and mortality, however, prudence is required in its clinical use for the treatment of severe infections like nosocomial pneumonia.
Acinetobacter baumannii
;
Drug Resistance
;
Enterococcus
;
Escherichia coli
;
Humans
;
Intraabdominal Infections
;
Klebsiella pneumoniae
;
Methicillin-Resistant Staphylococcus aureus
;
Minocycline
;
Pneumonia
;
Republic of Korea
;
Skin
;
Tetracyclines
4.A Case of 'True' Fungus-Infected Aneurysm of Abdominal Aorta in an Immunocompetent Patient.
Ho Young LEE ; Tae Hyong KIM ; Eun Ju CHOO ; Min Hyok JEON ; Eun Jeung LEE ; Eun Jung JUNG ; Seong Ran JEON ; Eui Ju PARK ; Wook YOUM ; Won Ho JANG ; Jeong Hwa HWANG ; Dong Hun KIM ; Dong Won KIM
Infection and Chemotherapy 2008;40(3):184-190
Infected aneurysms are uncommon, frequently fatal lesions. "True" fungus-infected aneurysms are even rarer. Fungal infections have high morbidity and mortality. However, diagnosis is frequently difficult, since the symptoms are non-specific and standard diagnostic procedures are often insensitive. We experienced a patient with persistent fever and negative blood cultures. The patient was immunocompetent and had no risk factors, and was diagnosed with a fungus-infected aneurysm based on computed tomography and vascular surgery. The vascular tissue revealed some narrow-based budding yeast within the thrombus, suggesting Candida infection. Seventeen cases of infected aneurysm of the abdomen were reported in Korea from 1988 to 2007, although none were "true" fungus-infected aneurysms, making this the first fungus-infected aneurysm of the abdomen in Korea. Prompt diagnostic procedures and aggressive treatment modalities are necessary for patients with occult infection and negative blood cultures, regardless of their immunocompetence, because of the high morbidity and mortality of this condition.
Abdomen
;
Aneurysm
;
Aneurysm, Infected
;
Aorta, Abdominal
;
Candida
;
Fever
;
Fungi
;
Humans
;
Immunocompetence
;
Korea
;
Risk Factors
;
Saccharomycetales
;
Thrombosis
5.A Case of 'True' Fungus-Infected Aneurysm of Abdominal Aorta in an Immunocompetent Patient.
Ho Young LEE ; Tae Hyong KIM ; Eun Ju CHOO ; Min Hyok JEON ; Eun Jeung LEE ; Eun Jung JUNG ; Seong Ran JEON ; Eui Ju PARK ; Wook YOUM ; Won Ho JANG ; Jeong Hwa HWANG ; Dong Hun KIM ; Dong Won KIM
Infection and Chemotherapy 2008;40(3):184-190
Infected aneurysms are uncommon, frequently fatal lesions. "True" fungus-infected aneurysms are even rarer. Fungal infections have high morbidity and mortality. However, diagnosis is frequently difficult, since the symptoms are non-specific and standard diagnostic procedures are often insensitive. We experienced a patient with persistent fever and negative blood cultures. The patient was immunocompetent and had no risk factors, and was diagnosed with a fungus-infected aneurysm based on computed tomography and vascular surgery. The vascular tissue revealed some narrow-based budding yeast within the thrombus, suggesting Candida infection. Seventeen cases of infected aneurysm of the abdomen were reported in Korea from 1988 to 2007, although none were "true" fungus-infected aneurysms, making this the first fungus-infected aneurysm of the abdomen in Korea. Prompt diagnostic procedures and aggressive treatment modalities are necessary for patients with occult infection and negative blood cultures, regardless of their immunocompetence, because of the high morbidity and mortality of this condition.
Abdomen
;
Aneurysm
;
Aneurysm, Infected
;
Aorta, Abdominal
;
Candida
;
Fever
;
Fungi
;
Humans
;
Immunocompetence
;
Korea
;
Risk Factors
;
Saccharomycetales
;
Thrombosis
6.Study for Multi Channel Radiation Detector Using of Microfilm and Carbon Electrode.
Kyo Chul SHIN ; Hyong Geun YUN ; Dong Hyeok JEONG ; Yong Kee OH ; Jhin Kee KIM ; Ki Hwan KIM ; Jeung Kee KIM
Korean Journal of Medical Physics 2005;16(3):111-115
We have designed the multi channel detector for the quality assurance of clinical photon beams. The detector was composed of solid phantom inserted by six plane-parallel ionization chambers at different depth. The chamber as a mini plane parallel chamber was made of carbon coated microfilms. In this study the electrical characteristics of the six chambers in the solid phantom were evaluated using 6 MV photon beam. The leakage currents were less than 0.5 pA, reproducibility was less than 0.5%, linearity was less than 0.5%, and dose rate effect was less than 0.7%. In addition the effect of dose variation from other chambers was estimated to maximum 0.8% approximately. The developed detector can be used for quality determination in output dosimetry or measurement of percentage depth dose approximately for clinical photon beam.
Carbon*
;
Electrodes*
7.A Case of Malakoplakia Treated by Antibiotics in the Rectum.
Dong Hyun LEE ; Jong Yun CHEONG ; Won Il PARK ; Jin Hong PARK ; Hyong Wook KIM ; Jeong HEO ; Gwang Ha KIM ; Dae Hwan KANG ; Geun Am SONG ; Mong CHO
Korean Journal of Gastrointestinal Endoscopy 2005;30(2):99-102
Malakoplakia is a rare chronic inflammatory process, most commonly affecting the urinary tract. This entity was first described by Michaelis and Gutman in 1902. As of 1995, only 85 cases of malakoplakia of the gastrointestinal tract has been reported. The common sites of colonic involvement are the rectum, sigmoid, and right colon, in descending order of frequency. The most common disease associated with malakoplakia is colorectal carcinoma. Surgical resection is the treatement of choice for cases associated with carcinoma or complications. But in other cases, medical treatment could be attempted. Antimicrobial drugs, such as trimethoprime-sufamethoxazole, rifampin, or as recently suggested, ciprofloxacin can be used. We report a case of rectal malakoplakia treated by ciprofloxacin with a review of literatures.
Anti-Bacterial Agents*
;
Ciprofloxacin
;
Colon
;
Colon, Sigmoid
;
Colorectal Neoplasms
;
Gastrointestinal Tract
;
Malacoplakia*
;
Rectum*
;
Rifampin
;
Urinary Tract
8.A Case of Ileocecal Burkitt`s Lymphoma with Intussusception in an Adult.
Jin Hong PARK ; Hyong Wook KIM ; Won Il PARK ; Jong Yun CHEONG ; Dong Hyun LEE ; Jeong HEO ; Gwang Ha KIM ; Dae Hwan KANG ; Geun Am SONG ; Mong CHO ; Ung Suk YANG
Korean Journal of Gastrointestinal Endoscopy 2004;29(2):94-98
Burkitt`s lymphoma is a distinct pathologic entity characterized by a diffuse proliferation of small, noncleaved cells of B-lymphocytes origin. It was first reported as "jaw sarcoma" in East African children and described as endemic in tropical Africa. Burkitt`s lymphoma usually occurs in youth and children, but it is very rare in an adult gastrointestinal tract of an adult. We recently experienced an unusual case of Burkitt`s lymphoma in a 69-year-old male with lower abdominal pain and a mass. A colonoscopy and abdominal CT scan detected an ileocecal fungating mass with intussusception, and the histologic examination of the resected and biopsy specimens showed infiltration of medium-sized lymphoblasts with characteristic "starry sky" machrophages. So we report it with a brief review of literatures.
Abdominal Pain
;
Adolescent
;
Adult*
;
Africa
;
Aged
;
B-Lymphocytes
;
Biopsy
;
Child
;
Colonoscopy
;
Gastrointestinal Tract
;
Humans
;
Intussusception*
;
Lymphoma*
;
Male
;
Tomography, X-Ray Computed
9.A Case of Gastric Lymphoepithelioma-like Carcinoma Presenting as a Submucosal Tumor.
Won Il PARK ; Hyong Wok KIM ; Jin Hong PARK ; Dong Hyun LEE ; Jong Yun CHEONG ; Gwang Ha KIM ; Jeong HEO ; Dae Hwan KANG ; Geun Am SONG ; Mong CHO ; Ung Suk YANG
Korean Journal of Gastrointestinal Endoscopy 2004;28(3):123-126
Lymphoepithelioma-like carcinoma (LELC) occurs in esophagus, stomach, bile duct, salivary gland, lung, uterus, skin, and so on. The incidence of gastric LELC is 1~4 percents of all stomach cancers. Gastric LELC has a lymphoid stroma and shows a good prognosis and high association with Epstein-Barr virus. We experienced a case of patient with gastric LELC. The patient was 49-year-old woman. and the endoscopic finding showed a submucosal tumor with central erosion. The histologic findings of endoscopic biopsies were suggestive of low grade MALT lymphoma. but the histologic findings of the surgical specimen were consistent with gastric LELC. We report a case of gastric LELC presenting as a submucosal tumor, with a brief review of the literature.
Bile Ducts
;
Biopsy
;
Esophagus
;
Female
;
Herpesvirus 4, Human
;
Humans
;
Incidence
;
Lung
;
Lymphoma, B-Cell, Marginal Zone
;
Middle Aged
;
Prognosis
;
Salivary Glands
;
Skin
;
Stomach
;
Stomach Neoplasms
;
Uterus
10.Emphysematous Gastritis Developed in a Patient with Klatskin's Tumor.
Jong Yun CHEONG ; Dong Hyun LEE ; Won Il PARK ; Jin Hong PARK ; Hyong Wook KIM ; Jeong HEO ; Gwang Ha KIM ; Dae Hwan KANG ; Geun Am SONG ; Mong CHO ; Ung Suk YANG
Korean Journal of Gastrointestinal Endoscopy 2004;28(1):34-38
Emphysematous gastritis is a rare disease characterized by air in the wall of the stomach due to gas-forming microorganisms. This lethal entity was first described by Fraenkel in 1889. Forty-six cases have been reported so far in the literature. The predisposing factors include corrosive ingestion, immunocompromized state, alcohol abuse, cancer, diabetes and so on. Computed tomography is the procedure of choice for early diagnosis. Only prompt diagnosis and treatment can avoid mortality. Initial antibiotic therapy should cover gram-negative organisms and anaerobes. We report a case of emphysematous gastritis in a 41-year-old man with Klatskin's tumor.
Adult
;
Alcoholism
;
Causality
;
Diagnosis
;
Early Diagnosis
;
Eating
;
Gastritis*
;
Humans
;
Klatskin's Tumor*
;
Mortality
;
Rare Diseases
;
Stomach

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