• Journal of Chest Surgery
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• 제9권1호
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• pp.73-77
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• 1976

Pulmonary aspergillosis is a rare disease, mostly commonly presenting as secondary invasion of pre-existing cavitary disease. In severance hospital, 9 patients have recognized as having this disorders in the 16 years from 1960 to April, 1976. The diagnosis of the aspergillosis has been made by examination of tissues removed at surgery in severance hospital, all the cases of aspergillosis except one (a Lt upper lobectomy due to bronchiectasis, performed 20 years ago) the case had been diagnosed as pulmonary tuberculosis and treated with anti-tuberculosis drugs for periods ranging from 2 to 14 years the most common presenting symptoms were hemoptysis, blood-tinged sputum and cough for a long time. All of the cases were confirmed by pathological examination to be aspergillosis superimposed on underlying tuberculosis and/or bronchiectasis three cases were suspected clinically by fungus cultures, seven cases were confirmed as aspergillosis, after surgery. One patient died following surgery because of bleeding and pulmonary insufficiency.

• Journal of Chest Surgery
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• 제45권1호
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• pp.56-59
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• 2012

Aspergillus is a ubiquitous fungus and can cause many levels of disease severity. Chronic necrotizing aspergillosis is a rare disease and few cases have been reported in Korea. We experienced a case of pleural aspergillosis that was treated successfully with medical and surgical interventions. The 52-year-old man who was diagnosed with chronic necrotizing pulmonary aspergillosis underwent surgical treatment including a lobectomy, decortication, and myoplasty. The patient was also medically treated with amphotericin B followed by voriconazole. Pleural irrigation with amphotericin B was also performed. A multi-dimensional approach should be considered for treating chronic necrotizing pulmonary aspergillosis.

• 농업과학연구
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• 제36권1호
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• pp.57-61
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• 2009

The invasive pest Brontispa longissima(Coleoptera: Chrysomelidae), native to Indonesia and Papua New Guinea, has extended its distribution to Australia, Asia and Pacific islands and caused serious leaf damages of the coconut palm Cocos nuciferain the invaded regions. Although biological control using parasitic wasps has successfully reduced population density and leaf damage levels, this pest and its natural enemies have not been efficiently producedin conventional methods using young leaves of C. nucifera. In the present study, we examined suitability of plants easily available in Thailand and Japan for mass rearing of this pest to develop effective mass rearing system of this pest. Mature, green leaves of the palms were also suitable for immature development and adult reproduction of this pest. Since mature leaves of C. nucifera are more abundant and less contaminated with fungus than the unopened leaf buds, mature leaves could be a promising plant diet for mass rearing of B. longissima. Ornamental palms such as Hyophorbe lagenicaulis and Washingtonia filifera were also suitable for immature development and reproduction of B. longissima. Away from palms, the cattail Typha spp. can sustain immature development and adult reproduction of B. longissima. In the area where C. nucifera is rare or not available, W. filifera or Typha spp. would be good food plants for mass rearing of this pest.

• 한국응용곤충학회지
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• 제50권4호
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• pp.279-282
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• 2011

버섯에서 서식하는 거저리류 가운데 갈색가시거저리(Bolitotrogus kurosonis Miyatake)를 국내에서 처음 보고한다. 갈색가시거저리는 균식성으로 활엽수림에 나는 민주름버섯류, 특히 시루뻔버섯속(Inonotus)의 황갈색시루뻔버섯[Inonotus mikadoi (Lloyd) Imaz.]에서 서식하는 것으로 관찰되었다. 본 종의 성충에 대한 기재문을 기술하였고, 본 종의 상위 분류군인 한국산 가시거저리족(Bolitophagini)에 대한 검색표를 작성하였다. 성충의 사진, 진단 형질과 숙주버섯에 대한 생태적 정보를 제공하였다.

• Mycobiology
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• 제51권2호
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• pp.94-108
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• 2023

Termitomyces sp. that grow in symbiosis with fungus-farming Termites have medicinal properties. However, they are rare in nature, and their artificial culture is challenging. The expression of AXL receptor tyrosine kinase and immune checkpoint molecules favor the growth of cancer cells. The study evaluated the optimal conditions for the artificial culture of Termitomyces and their inhibitory activity on AXL and immune checkpoint molecules in lung adenocarcinoma and melanoma cell lines. The culture of 45 strains of Termitomyces was compared. Five strains with marked growth rates were selected. Four of the selected strains form a single cluster by sequence analysis. The mycelium of 4 selected strains produces more fungal mass in potato dextrose broth than in a mixed media. The bark was the most appropriate solid substrate for Termitomyces mycelia culture. The mycelium of all five selected strains showed a higher growth rate under normal CO₂ conditions. The culture broth, methanol, and ethyl acetate of one selected strain (T-120) inhibited the mRNA relative expression of AXL receptor tyrosine kinase and immune checkpoint molecules in cancer cell lines. Overall, these results suggest the potential usefulness of Termitomyces extracts as a coadjuvant therapy in malignant diseases.

• 대한정형외과학회지
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• 제54권1호
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• pp.52-58
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• 2019

목적: 슬관절 전치환술 후 진균에 의한 감염은 드물지만 심각한 합병증으로 알려져 있으며 그 치료에 있어 항진균제 투여 기간이나 수술의 방법에 대해서는 이견이 있다. 이에 저자들은 인공 관절 주위 진균 감염에 대한 치료 결과 및 임상경과를 알아보고자 하였다. 대상 및 방법: 2006년부터 2017년까지 슬관절 전치환술 후 진균 감염으로 계명대학교 동산의료원에서 2단계 재치환술을 시행받은 10명의 환자를 같은 기간 비진균 인공 슬관절 주위 감염으로 치료받은 119명의 환자와 비교하였다. 임상적 평가는 2단계 재치환술에 의한 감염 조절의 실패율과 감염의 재발률 및 정주용 항생제 및 항진균제 사용기간, 2단계 재치환술 후 관절 운동 범위, 한국형 슬관절 점수(Korean knee score, KKS), 적혈구 침강속도(erythrocyte sedimentation rate, ESR), C-반응성 단백질(C-reactive protein, CRP)을 평가하였다. 결과: 진균이 동정된 군 총 10예 중 7예(70.0%)에서 감염조절의 실패를 보였고 일반 감염군 119예 중 7예(5.9%)에서 감염조절의 실패를 보였다(p=0.04). 진균이 동정된 군에서는 정주용 항진균제의 평균 사용기간은 15.3주로 일반 감염군에서의 정주용 항생제 평균 사용기간인 6.2주에 비해 9.1주 더 길었다(p<0.001). 감염 조절술 시행 전 슬관절 운동 범위는 두 군에서 모두 증가하였다(p=0.265). 최종 추시 시 KKS는 일반 감염군에서 평균 71.01점으로 나타났고 진균이 동정된 군에서 61.3점이었다(p=0.012). ESR과 CRP는 두 군에서 모두 감소하였으나 CRP만 두 군 간에 유의한 차이를 보였다(p=0.007). 결론: 슬관절 전치환술 후 발생한 인공관절 주위 진균 감염에 대한 수술적 치료는 일률적으로 양호한 결과를 보이지 않으므로 감염 조절술 시행 시 항진균제 혼합 시멘트 삽입과 재치환술 후 경구용 항진균제 사용을 고려하는 것이 필요하다.

• 식물병연구
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• 제29권3호
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• pp.234-242
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• 2023

이른 봄에 개나리 꽃잎과 잎에 수침상 병반이 나타나서 조직이 괴저하며 마르고 증상이 가지까지 확산되었다. 감염된 가지에는 궤양이 생기며 5월 초부터 윗부분이 말라 죽는데, 가지 기부까지 말라 죽는 경우는 매우 드물었다. 마름 증상을 보이는 가지 조직으로부터 균을 분리하여 병원성을 확인하였다. 대부분의 시료로부터 같은 균이 분리되었는데, potato dextrose agar 배지에서 흰색 균총을 만들었으며 23℃에서 생육이 가장 활발하였고 크기가 다양한 균핵을 많이 만들었다. 개나리의 각 기관에 균사와 균핵 현탁액을 접종한 병원성 검정에서 병원균은 꽃을 감염하며, 잎이나 가지는 감염하지 않는 것으로 나타났다. 꽃에 나타난 증상은 시간이 지남에 따라 잎과 가지로 확산되며 감염 조직을 고사시켰다. 병원균을 동정하기 위하여 ITS, LSU, Tub2, CAL 등 네 가지 유전자의 염기서열을 분석한 결과 Septotinia속으로 동정되었다. 본 연구는 개나리 가지마름병(가칭)에 대한 국내 첫 보고인 동시에 Septotinia속이 식물병원균임을 밝히는 국내 첫 보고이다.

• 한국산림과학회지
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• 제99권2호
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• pp.172-178
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• 2010

The status of ectomycorrhizal (ECM) fungal colonization in Pinus thunbergii seedlings was investigated 2 years after planting in an eastern coastal area of Korea. We established three $10{\times}10$ m plots at a P. thunbergii plantation in Gangneung and sampled lateral roots from 10 seedlings in each plot. ECMs were classified into morphological groups and the number of root tips of each morphotype was counted. In total, 8 ECM morphotypes were observed and fungal species that form each morphotype were identified by sequencing of the internal transcribed spacer (ITS) region of the nuclear rDNA. Suillus granulatus was the most abundant species (44.1-65.7% of relative abundance) in all plots, followed by Tomentella ellisii (14.0-37.8%) and unidentified fungus belonged to Atheliaceae (10.6-20.1%). These 3 fungal species accounted for almost all of the ECM abundance in each plot (94.9-99.8%). The remaining 5 fungal species were uncommon and rare. There was no clear difference in ECM fungal communities among plots. Community structure of ECM fungi in the young P. thunbergii plantation was simple and composed of fungal species that were also observed in mature coastal pine forests.

• Tuberculosis and Respiratory Diseases
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• 제51권1호
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• pp.70-75
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• 2001

저자들은 폐결핵의 병력이 있던 2명의 환자에서 기침과 객담을 주소로 내원하여 단순 흉부 방사선과 흉부 전산화 단층 촬영 결과 흉막비후와 기관지흉막루를 의심할 수 있는 공동형성을 보이고 흉막 천자액 배양과 수술후 조직배양검사결과 Aspergillus fumi-gatus가 확인되어 수술 및 항진균제를 사용하여 치료한 2례를 경험하였기에 이를 보고하는 바이다.

• Tuberculosis and Respiratory Diseases
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• 제71권5호
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• pp.322-327
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• 2011

Background: Pneumocystis jirovecii is a fungus that has become an important cause of opportunistic infections. We present a summary of the clinical status and findings from bronchoalveolar lavage (BAL) of patients with Pneumocystis jirovecii pneumonia (PJP). Methods: We selected 30 cases of PJP that were proven through a surgical specimen evaluation. BAL fluid cytology was reviewed, and agreement with the initial diagnosis was evaluated. Results: All 30 cases of PJP occurred in immunocompromised patients. Only 15 of the 30 cases were initially diagnosed as PJP. We found PJP in 13 of the 15 cases that were negative at the initial diagnosis. The most characteristic finding of PJP was frothy exudates, and BAL fluid tended to show rare neutrophils. Two of seven patients with PJP and diffuse alveolar damage (DAD) revealed no frothy exudates in BAL fluid. Conclusion: BAL fluid cytology was reconfirmed as a sensitive and rapid method to diagnose PJP. We must be aware of the possibility of PJP to maintain high diagnostic sensitivity. We cannot exclude PJP in cases of PJP with DAD, even if frothy exudates are not observed in the BAL fluid.