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동종 조혈모세포이식 후 발생한 크립토콕쿠스 척추염 1예
고윤호,임동준,이성수,조유경,이동건,최정현,김유진,민창기,김동욱,박정미,김춘추,신완식 대한감염학회 2001 감염 Vol.33 No.4
Skeletal cryptococcosis is an uncommon infection. Cryptococcus is a common cause of meningitis and infects 7∼10% of patients with AIDS. As well as AIDS, the infection may be seen in association with leukemia, lymphoma, Hodgkin's disease, sarcoidosis, tuberculosis and diabetes, also in patients on steroid medication. But there is no case report of skeletal cryptococcosis following allogeneic hematopoietic stem cell transplantation. A 40-year-old woman was admitted to the hospital because of low back pain. She had chronic myelogenous leukemia for 2 years and underwent allogeneic hematopoietic stem cell transplantation 8 months ago. She have been treated with steroid and cyclosporine orally because of chronic graft versus host disease. On examination she was afebrile and had posterior lower lumbar tenderness. But, she had no reduced strength of low extremities. Open biopsy was underwent. Histology demonstrated budding, round-to-oval, refractile yeast-like organisms within debris. The results of a lumbar puncture were unremarkable and cerebrospinal fluid culture failed to grow bacteria and yeast. The patient was treated with amphotericin B (1 gram) and AmBisome□ (2.8 gram) over 6 weeks. Three months after cessation of therapy, the patient was doing well.(Korean J Infect Dis 33:298∼301, 2001)
김윤정,전은경,조병식,최수미,이석,민창기,신완식 대한감염학회 2008 감염과 화학요법 Vol.40 No.5
Hematopoietic stem cell transplantation (HSCT) can cause various complications involving lung, liver intestine and other organs, Chemotherapy, radiation therapy, and graft-versus-host disease (GVHD) may injure the cells in the intestinal mucosa of HSCT recipients. Pneumatosis cystoides intestinalis (PI) is a condition that presence of air in the bowel wall is demonstrated by radiologic or pathologic tests, It is one of the infrequent complications after HSCT and is associated with several medical and surgical conditions. However its pathogenesis and definite etiologic factors are still unknown. Here, we present a case of PI in a HSCT recipient, who was diagnosed of bronchiolitis obliterance accompanied with chronic GVHD and pulmonary disease caused by Mycobacterium abscessus.
Escherichia coli 패혈증 환자에 합병된 대칭적 하지 말단 괴사증 1예
남해성,유진홍,권순석,민준기,조현선,박민경,심병주,남유정,이지인,김진수,길욱현,조근종,신완식 대한감염학회 2005 감염과 화학요법 Vol.37 No.6
We have encountered a rare case of symmetrical peripheral gangrene complicating Escherichia coli sepsis in a 47-years-old male. He was successfully treated with antibiotics, anticoagulants, and vasodilator. To our knowledge, this is the first report on symmetrical peripheral gangrene complicating E. coli sepsis in Korea.
Magnetic Properties and Magnetoimpedance Effect in Mumetal Thin Films
Wan-Shik Cho,Tae-Sick Yoon,Heebok Lee,Chong-Oh Kim 한국자기학회 2001 Journal of Magnetics Vol.6 No.1
The dependence of the magnetoimpedance effect (MI) on magnetic properties has been investigated in mumetal thin films prepared by rf magnetron sputtering. Coercivity of thin films prepared at 400 W was about 0.4 Oe, and the magnetic anisotropy field of films deposited under a uniaxial magnetic field decreased with increasing film thickness. The saturation magnetization of mumetal films increased with rising input power and thickness, and was smaller than that of permalloy films. Transverse incremental Permeability (TPR) of films of 1 ㎛ thick increased with increasing effective permeability. The magneto impedance ratio (MIR) was proportional to TPR in films 1 ㎛ thick but in spite of lower effective permeability at higher thicknesses, MIR increased due to skin effect. The height of the double peaks in the MIR curves decreased with decreasing anisotropy and thickness. The maximum MIR value for a 4 ㎛ thick 75 % at 36.5 ㎒.
Tetrameric structure of the flagellar cap protein FliD from <i>Serratia marcescens</i>
Cho, So Yeon,Song, Wan Seok,Hong, Ho Jeong,Lee, Geun-Shik,Kang, Seung Goo,Ko, Hyun-Jeong,Kim, Pyeung-Hyeun,Yoon, Sung-il Academic Press 2017 Biochemical and biophysical research communication Vol. No.
<P><B>Abstract</B></P> <P>Bacterial motility is provided by the flagellum. FliD is located at the distal end of the flagellum and plays a key role in the insertion of each flagellin protein at the growing tip of the flagellar filament. Because FliD functions as an oligomer, the determination of the oligomeric state of FliD is critical to understanding the molecular mechanism of FliD-mediated flagellar growth. FliD has been shown to adopt a pentameric or a hexameric structure depending on the bacterial species. Here, we report another distinct oligomeric form of FliD based on structural and biochemical studies. The crystal structures of the D2 and D3 domains of <I>Serratia marcescens</I> FliD (smFliD) were determined in two crystal forms and together revealed that smFliD assembles into a tetrameric architecture that resembles a four-pointed star plate. smFliD tetramerization was also confirmed in solution by cross-linking experiments. Although smFliD oligomerizes in a head-to-tail orientation using a common primary binding interface between the D2 and D3′ domains (the prime denotes the second subunit in the oligomer) similarly to other FliD orthologs, the smFliD tetramer diverges to present a unique secondary D2-D2′ binding interface. Our structure-based comparative analysis of FliD suggests that bacteria have developed diverse species-specific oligomeric forms of FliD that range from tetramers to hexamers for flagellar growth.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The crystal structures of FliD from <I>Serratia marcescens</I> (smFliD) were determined. </LI> <LI> smFliD assembles into a tetramer that has not been reported in other FliD orthologs. </LI> <LI> smFliD oligomerizes into a four-pointed star plate in a head-to-tail organization. </LI> <LI> The smFliD tetramer features a unique secondary binding interface. </LI> </UL> </P>
홍완기(Wan Kee Hong),강성식(Sung Shik Kang),이동봉(Dong Bong Lee),김호중(Ho-Joong Kim),이제민(Jemin Yi),조현국(Hyeon Guk Cho),장봉순(Bong-Soon Chang),이춘기(Choon-Ki Lee),염진섭(Jin S. Yeom) 대한정형외과학회 2014 대한정형외과학회지 Vol.49 No.5
추간공 절제술 없이 제5-6-7 경추간 전방 경추간판 절제술 및 추체간 유합술을 시행한 후 지속되는 방사통과 악화되는 위약감에 대해, 이미 삽입된 케이지의 제거 없이 제7 경추의 일괄 구상돌기 전절제술만을 시행하여 만족스러운 결과를 얻을 수 있었던 증례를 보고하는 바이다. 이 술식은 전방 경추간 유합술 후 골유합된 상태에서 잔존하는 추간공 협착증에 의해서 지속되거나 재발된 신경근증의 치료에 효과적인 선택으로 고려될 수 있을 것이며, 이를 이 술식의 새로운 적응증으로 제안하는 바이다. We report on a case involving total en bloc uncinatectomy of C7 without removal of the previously inserted cage, performed on a patient with a history of previous anterior cervical discectomy and fusion without uncoforaminotomy at C5-6-7 who had persistent pain radiating to the upper extremity along with progressive weakness. Satisfactory results were achieved. This procedure should be regarded as an effective option for surgical treatment of persistent or recurrent radiculopathy caused by remaining foraminal stenosis following anterior cervical fusion, and we suggest it as a new indication for this procedure.