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Omental abscess coinfected with Actinomyces species and Fusobacterium nucleatum: A case report
( Woori Cho ),( Min Ja Kim ),( Seung Hee Baik ),( Tae Yeon Hwang ) 대한내과학회 2015 대한내과학회 추계학술발표논문집 Vol.2015 No.1
Purpose: To report a rare case of omental abscess coinfected with Actinomyces species and Fusobacterium nucleatum. Summary: A 52-year-old female visited the emergency room because of aggravated right lower abdominal pain for a few days. She began to have abdominal pain two weeks ago when she was suspected of omental infection at another hospital. She had no specific past medical history. On physical examination, her vital signs were stable. She showed moderate tenderness in the right lower quadrant without guarding orrigidity. Computerized tomography (CT) scan of abdomen showed low attenuating lesion in RLQ omentum with enhancing wall thickening and omentomesenteric infiltration, abutted on the anterior abdominal wall, and a mass like lesion in her uterus. Ultrasound-guided aspiration and culture was taken for omental abscess. Abdominal aspirate revealed delicately filamentous Gram positive bacilli but failed to isolate the bacteria. The gynecologist disclosed the presence of IUD removed separately from uterine myoma. Cytology findings from the related tissue showed the presence of Actinomyces species. She was initially treated with extended spectrum i-lactam/i-lactam inhibitor, switched and maintained with ampicillin/sulbactam against actinomycosis for three weeks. Isolation of Fusobacterium nucleatum was lately reported from initial abdominal aspirate. Because of hypersensitivity reaction, ampicillin/sulbactam was changed with clindamycin targeted two bacterial species associated. Her symptoms and abnormal findings on CT scan were completely recovered after the antibiotic therapy for 4 months. Conclusions: The omental actonomycosis in this case might arise in association with preceding colonization and infection of prolonged retention of IUD. Fusobacterium species coinfected with Actinomyces species is considered to synergistically enhance the infectious process.
( Woori Kwak ),( Kwondo Kim ),( Chul Lee ),( Chanho Lee ),( Jungsun Kang ),( Kyungjin Cho ),( Sook Hee Yoon ),( Dae-kyung Kang ),( Heebal Kim ),( Jaeyoung Heo ),( Seoae Cho ) 한국미생물 · 생명공학회 2016 Journal of microbiology and biotechnology Vol.26 No.4
Acute respiratory virus infectious diseases are a growing health problem, particularly among children and the elderly. Much effort has been made to develop probiotics that prevent influenza virus infections by enhancing innate immunity in the respiratory tract until vaccines are available. Lactobacillus plantarum GB-LP2, isolated from a traditional Korean fermented vegetable, has exhibited preventive effects on influenza virus infection in mice. To identify the molecular basis of this strain, we conducted a whole-genome assembly study. The single circular DNA chromosome of 3,284,304 bp was completely assembled and 3,250 proteinencoding genes were predicted. Evolutionarily accelerated genes related to the phenotypic trait of anti-infective activities for influenza virus were identified. These genes encode three integral membrane proteins, a teichoic acid export ATP-binding protein and a glucosamine - fructose-6-phosphate aminotransferase involved in host innate immunity, the nonspecific DNA-binding protein Dps, which protects bacteria from oxidative damage, and the response regulator of the three-component quorum-sensing regulatory system, which is related to the capacity of adhesion to the surface of the respiratory tract and competition with pathogens. This is the first study to identify the genetic backgrounds of the antiviral activity in L. plantarum strains. These findings provide insight into the anti-infective activities of L. plantarum and the development of preventive probiotics.
The Characteristics of Biocoal with Mixed Organic Waste by Hydrothermal Carbonization
( Woori Cho ),( Byeong Oh Go ),( Jai-young Lee ) 한국폐기물자원순환학회(구 한국폐기물학회) 2019 ISSE 초록집 Vol.2019 No.-
As ocean dumping, which is the highest proportion of sewage sludge disposal methods, is prohibited, it is urgent to develop efficient and stable treatment methods for sewage sludge. Sewage sludge contains high moisture and a large amount of organic substances. So it is easy to decay and it can cause secondary pollution during recycling. Sewage sludge is necessary to remove the moisture by applying heat at high temperature because of the coagulant. And fuel value is low because of low calorific value and energy efficiency. Therefore, hydrothermal carbonization was used for efficient treatment of sewage sludge, and biocoal was produced by mixing the roadside tree waste to expand the recycling bounds. The purpose of this study is to understand basic characteristics of sewage sludge and roadside tree waste as basic data for recycling. As a result of biocoal by mixed organic waste, the fuel properties decreases as sewage sludge content increases. Especially, as the mixing ratio of sewage sludge increased, the ash content exceeded the standard value of 35%, which is considered to be difficult to use as fuel. Therefore, it can be used as renewable energy if proper mixing ratio and reaction conditions are used.
Diastolic dysfunction and acute kidney injury in elderly patients with femoral neck fracture
( Woori Cho ),( Tae Yeon Hwang ),( Yoon Kyung Choi ),( Ji Hyun Yang ),( Myung-gyu Kim ),( Sang-kyung Jo ),( Won Yong Cho ),( Se Won Oh ) 대한신장학회 2019 Kidney Research and Clinical Practice Vol.38 No.1
Background: Femoral neck fracture is common in the elderly population. Acute kidney injury (AKI) is an important risk factor for mortality in patients who have had such fracture. We evaluated the incidence of AKI in patients who had femoral neck fracture and identified risk factors for AKI and mortality. Methods: This was an observational cohort study including 285 patients who were ≥ 65 years of age and who underwent femoral neck fracture surgery between 2013 and 2017. Results: The mean age was 78.63 ± 6.75 years. A total of 67 (23.5%) patients developed AKI during the hospital stay: 57 (85.1%), 5 (7.5%), and 5 (7.5%) patients were classified as having stage 1, 2, and 3 AKI, respectively. Patients with AKI had a lower baseline estimated glomerular filtration rate and higher left atrial dimension, left ventricular mass index, pulmonary artery pressure, and the ratio of early mitral inflow velocity to early diastolic mitral annulus velocity (E/e’) and were more likely to have diabetes or hypertension (HTN) (P < 0.05). The presence of HTN (odds ratio [OR], 4.570; 95% confidence interval [CI], 1.632-12.797) higher E/e’ (OR, 1.105; 95% CI, 1.019-1.198), and lower hemoglobin (OR, 0.704; 95% CI, 0.528-0.938) were independently associated with a higher risk for developing AKI. Severe AKI (OR, 24.743; 95% CI, 2.822-212.401) was associated with a higher risk of mortality. Conclusion: Elderly patients with femoral neck fracture had a high incidence of AKI. Diastolic dysfunction was associated with AKI. Severe AKI was associated with in-hospital mortality.