1.Isolation of Antimicrobial Substances from Hericium erinaceum.
Dong Myong KIM ; Chul Woo PYUN ; Han Gyu KO ; Won Mok PARK
Mycobiology 2000;28(1):33-38
Mycelium of Hericium erinaceum isolate KU-1 was cultured in liquid medium (HL medium) and solid medium (Ko medium) at pH 4.0 in 28degrees C. 1.0% glucose or fructose was the most favorable carbon source, and 0.2% amonium acetate or NaNO3 was an exellent nitrogen source for mycelial growth as well as production of antimicrobial substances. The mixture of saw dust 70% with rice bran 30% (SR medium) was the substrate for formation of sporophores. The active substrates in extracts from mycelium, culture filtrate and fruiting body were separated by TLC. The solvent for TLC was EtOAc: Chloroform: MeOH (10 : 5 : 10). Phenol-like substances appeared at Rf 0.5~0.9, and fatty acid-like substances appeared at Rf 0.1~0.2. The purified materials from the extracts showed antimicrobial effects to Escherichia coli, Bacillus subtilis, Staphylococcus aureus, Aspergillus niger, Candida albicans and Microsporum gypseum. The S. aureus was the most inhibited. Minimal inhibitory concentration (MIC) of purified white powder and the Hercenone derivatives against S. aureus were 5.65microg/ml and 1.85microg/ml, respectively.
Aspergillus niger
;
Bacillus subtilis
;
Candida albicans
;
Carbon
;
Chloroform
;
Dust
;
Escherichia coli
;
Fructose
;
Fruit
;
Glucose
;
Hydrogen-Ion Concentration
;
Microsporum
;
Mycelium
;
Nitrogen
;
Staphylococcus aureus
2.Revision Total Hip Arthroplasty Using Allogenic Chip Bone Grafts and Cement in Acetabular Bone Deficiencies: Minimum Two Year Clinical and Radiological Analysis.
Han Suk KO ; Young Yong KIM ; Jeong Gyu PARK ; Hyung Tae MOON ; Sang Jin HAN ; Doo Yeong KIM
The Journal of the Korean Orthopaedic Association 1997;32(4):984-992
The purpose of this study was to analyze the minimum two year clinical and radiological results of revision total hip arthroplasties using allogenic chip bone graft and cement in acetabular bone deficiencies. Thirty six revision total hip arthroplasties that had been performed in thirty four patients between Sep. 1992 and May. 1994 at Seoul Paik Hospital and had followed more than two years were included in this study. The clinical result was evaluated by Harris hip score. The mean Harris hip score was 48 points preoperatively, 88 points at final follow-up, a mean of 3 years after revision. In radiological evaluation, osseous union between grafted bone and host bone was seen within 4 months in thirty two hips (89%), a complete grafted bone-cement radiolucent line of two millimeter or more in at least one zone was seen in seven hips (19%) and acetabular component migration was seen in six hips (17%) at postoperative 3 year follow-up radiograph. At the time of follow-up, five hips (14%) had been revised a second time: three for aseptic acetabular loosening, two for infection. In conclusion, we recommend the technique using allogenic chip bone graft and cement to reconstruct the acetabular bone deficiencies in revision total hip arthroplasties, though other technique will be recommend in severe segmental acetabular deficiencies or previous infection.
Acetabulum*
;
Arthroplasty
;
Arthroplasty, Replacement, Hip*
;
Follow-Up Studies
;
Hip
;
Humans
;
Seoul
;
Transplants*
3.The Posterolateral Decompression for Burst Fracture in the Thoracolumbar Spine.
Han YUN ; Yong KO ; Joo Seung KIM ; Uhn LEE ; Dae Gyu KIM
Journal of Korean Neurosurgical Society 1991;20(7):511-517
The posterolateral approaches to the spine is an effective method for the neural decompression and the spinal stabilization. This procedure has an advantages of an one-stage posterolateral decompression-stabilization. We have experienced 8 patients with burst fracture in the thoracolumbar junction. A three-quater prone position was used for patient positioning. No patient showed neurologic deterioration after surgery. Patient positioning and the operative approach are described and illustrated.
Decompression*
;
Humans
;
Patient Positioning
;
Prone Position
;
Spine*
4.Two Cases of Lues Maligna.
Dong Han KO ; In Gyu BAE ; Tae Jin YOON
Korean Journal of Dermatology 2006;44(10):1238-1241
Lues maligna (malignant syphilis), also called noduloulcerative syphilis, is a kind of cutaneous secondary syphilis, which presents virulent clinical features and is frequently associated with an immunosuppressed state. Though there are many possible debilitative diseases, it has recently been more frequently presented in the human immunodeficiency virus (HIV)-infected patients. Other causes are diabetes and chronic alcoholism. Prompt diagnosis and early treatment can result in a desirable recovery and prevent spread of the disease. We report two cases of lues maligna associated with the underlying diseases of HIV-infection and diabetes. The skin lesions in these cases showed favorable results after treatment with benzathine penicillin.
Alcoholism
;
Diagnosis
;
HIV
;
Humans
;
Penicillin G Benzathine
;
Skin
;
Syphilis
5.High Tibial Osteotomy
Byung Jik KIM ; Han Suk KO ; Young LIM ; Jung Guk SEO ; Suk Gyu JOO ; Jin Soo SUH ; Jae Gi SIN
The Journal of the Korean Orthopaedic Association 1994;29(2):627-633
High tibial osteotomy is a useful procedure in the treatment of early stage osteoarthritis of the knee which is confined to the medial compartment. But long term follow-up study of high tibial osteotomy has not been provided yet and its prerequisite for a successful result still remains unrevealed. Since the osteoarthritis can progress after the osteotomy, it may result in the loss of correction and recurrence of pain and require conversion to total knee replacement arthroplasty. We studied clinically and radiologically the long term result of high tibial osteotomy in 11 patients(16 knees) who had been treated at the Department of Orthopaedic surgery of Seoul Paik Hospital during the period from January, 1978 to May, 1989, and follow-up for longer than 4 years. Preoperative mean varus angle was 6.4 degrees and immediate postoperative mean valgus angle was 8.6 degrees and final mean valgus angle was 4.7 degrees. The average loss of correction angle was 3.9 degrees. At 2-year follow-up, the results of 16 knees were as follows; excellent in six knees, good in seven knees. The final results at average 7.2-year follow-up were excellent in four knees, good in six knees and one knee was converted to total knee replacement arthroplasty. The results showed deterioration of clinical results and loss of correction with time after osteotomy. However, in more than half of the cases the results were good or excellent at the final follow-up, We, therefore, conclude that high tibial osteotomy is still a useful procedure in osteoarthritis of the knee if performed with a precise surgical technique and an adequate overcorrection more than 10 degrees.
Arthroplasty
;
Arthroplasty, Replacement, Knee
;
Follow-Up Studies
;
Knee
;
Osteoarthritis
;
Osteotomy
;
Recurrence
;
Seoul
6.Novel Treatment Using Intradermal Radiofrequency and Hyaluronic Acid Filler to Correct Marionette Lines.
Eun Jung KO ; Han Gyu CHOI ; Hyuk KIM ; Won Seok PARK ; Beom Joon KIM ; Myeung Nam KIM
Annals of Dermatology 2015;27(3):351-352
No abstract available.
Hyaluronic Acid*
7.Extracellular Enzyme Activities of the Monokaryotic Strains Generated from Basidiospores of Shiitake Mushroom.
Hyuk Woo KWON ; In Joung BACK ; Han Gyu KO ; Chang Hyun YOU ; Seong Hwan KIM
Mycobiology 2008;36(1):74-76
To obtain basic information on the biochemical property of basidiospores of shiitake mushroom (Lentinula edodes), the ability of producing extracellular enzyme was assessed using a chromogenic plate-based assay. For the aim, amylase, avicelase, beta-glucosidase, CM-cellulase, pectinase, proteinase, and xylanase were tested against monokaryotic strains generated from forty basidiospores of two different parental dikaryotic strains of shiitake mushroom, Sanjo-101Ho and Sanjo-108Ho. These two parental strains showed different degree of extracellular enzyme activity. No identical patterns of the degree of enzyme activity were observed between monokaryotic strains and parental strains of the two shiitake cultivars. The degree of extracellular enzyme activity also varied among monokaryotic strains of the two shiitake cultivars. Our results showed that dikaryotic parental strains of shiitake mushroom produce monokaryotic basidiospores having very diverse biochemical properties.
Amylases
;
beta-Glucosidase
;
Cellulases
;
Humans
;
Parents
;
Polygalacturonase
;
Shiitake Mushrooms
8.A Case of Klinefelter's Syndrome Associated with Rheumatoid Arthritis.
Sang Il MO ; Hyeok Gyu LEE ; A Ra CHO ; Hye Kyoung CHUNG ; Ki Won KIM ; Han Min LEE ; Byong Il KANG ; Gyu Bong KO ; Se Whan LEE ; Seong Su NAH
Journal of Rheumatic Diseases 2011;18(1):60-63
Klinefelter's syndrome (KFS) is a gonosomal aberration disease that occurs in males, and is characterized by 47, XXY karyotype, hypogonadism and a lack of secondary sexual characteristics. A potential link between this hormonally deficient syndrome and autoimmune disease, particularly systemic lupus erythematosus (SLE), has been reported. On the other hand, KFS is rarely reported to be accompanied by rheumatoid arthritis (RA), and there are no Korean cases reported. We report the first Korean case of a KFS patient with sero-positive RA and discuss the role of the pathogenesis of RA with KFS.
Aluminum Hydroxide
;
Arthritis, Rheumatoid
;
Autoimmune Diseases
;
Carbonates
;
Hand
;
Humans
;
Hypogonadism
;
Karyotype
;
Klinefelter Syndrome
;
Lupus Erythematosus, Systemic
;
Male
;
X Chromosome
9.Middle Turbinate Stabilization after Endoscopic Sinus Surgery: The Suture Technique.
Seon Tae KIM ; Yoo Sam CHUNG ; Jin Ho CHOI ; Hyung Gyu JEON ; Sang Hyun KO ; Heung Eog CHA ; Gyu Cheol HAN
Korean Journal of Otolaryngology - Head and Neck Surgery 2003;46(4):309-312
BACKGROUND AND OBJECTIVES: Middle turbinate lateralization is a common complication of endoscopic sinus surgery, and many methods are employed to avoid it. We tried to suture middle turbinate-septum-opposite middle turbinate for middle turbinate stabilization. MATERIALS AND METHOD: A prospective study was done for 32 patients who had floppy or paradoxically curved middle turbinate at the time of endoscopic sinus surgery. A 3-0 Vicryl suture on 20 mm 1/2 curved round bodied needle was used for suture. The needle was passed through the left middle turbinate from lateral to medial, transversing the nasal septum to the right side and continued through the middle turbinate from medial to lateral. It is then passed again in the opposite direction through the same structures and tied. All cases were followed up until complete healing was confirmed by endoscopic visualization at the final office examination. RESULTS: OMUs (Ostiomeatal Units) were patent in 93.7% (30/32) of patients. Middle turbinates of 2 cases were lateralized due to parted suture. In 4 cases (12.5%), patients complained temporary hyposmia during the immediate postoperative period. In 2 cases, patients continued to have hyposmia at 3 postoperative months, but recovered at 6 postoperative months. Crust was observed about 6 weeks. Granulation tissue was presented in 3 cases (9.4%). CONCLUSION: Suture technique is an effective method to stabilize middle turbinate and it can be performed in selected cases of paradoxical middle turbinate or floppy middle turbinate.
10.Living Related Donor Liver Transplantation in Children: Indication and Clinical Outcome.
Kyung Mo KIM ; Sung Gyu LEE ; Young Joo LEE ; Kwang Min PARK ; Seong Chul KIM ; Hoon Bae CHUN ; Eun Sil YOO ; Kyung Suk KO ; Sang Hoon HAN ; Moon Gyu LEE ; Kyu Taek CHOI ; Jae Kon KO ; Hyung Nam MOON
Journal of the Korean Pediatric Society 1998;41(5):622-632
PURPOSE: Living related donor liver transplantation (LRLT) was introduced into our pediatric liver transplantation program as a response to the shortage of donors. This study was performed to evaluate the indication, complication and outcome of LRLT in children. METHODS: From December, 1994 to May, 1997, a total of 20 LRLTs had been performed at Asan Medical Center for end-stage liver disease. The patients ranged in age from 6 months to 14 years (median : 1 year 4 months) and in body weight from 5.8 to 50.5kg (median : 9.8kg). The indications for transplantation were biliary atresia (11), Wilson disease (3), nonsyndromic intrahepatic bile duct paucity (2), Byler syndrome (1), cirrhosis (1), fulminant hepatitis (1) and posthepatectomy bile duct stricture (1). Among them 3 ABO blood group incompatibilities were included. The lateral segment or the left lobe of the liver was used for the graft. As for immunosuppression, cyclosporin A based immunosuppression was used for the initial 11 cases which later changed into FK506 based for the last 9 cases. RESULTS: The actuarial survival rate of recipients was 90% for our cases. Two deaths occurred, one of whom died of acute respiratory distress syndrome due to respiratory syncytial virus infection on 51st postoperative day and the other died of gastrointestinal bleeding from Epstein- Barr virus infection and posttransplant lymphoproliferative disease on 11th postoperative month. No patient died of surgical complications. Acute rejection episodes were observed in 6 (5 among 11 cyclosporin A based immunosuppression and 1 among FK506 group) which were managed successfully. All donors (6 fathers and 14 mothers) are alive and well with normal activity. CONCLUSION: We concluded that LRLT is a promising option for alleviating the shortage of livers for pediatric transplantation.
Bile Ducts
;
Bile Ducts, Intrahepatic
;
Biliary Atresia
;
Blood Group Incompatibility
;
Body Weight
;
Child*
;
Chungcheongnam-do
;
Constriction, Pathologic
;
Cyclosporine
;
Fathers
;
Fibrosis
;
Hemorrhage
;
Hepatitis
;
Hepatolenticular Degeneration
;
Humans
;
Immunosuppression
;
Liver Diseases
;
Liver Transplantation*
;
Liver*
;
Living Donors
;
Respiratory Distress Syndrome, Adult
;
Respiratory Syncytial Viruses
;
Survival Rate
;
Tacrolimus
;
Tissue Donors*
;
Transplants