1.Cloning and Molecular Characterization of beta-1,3-Glucan Synthase from Sparassis crispa.
Yun Hui YANG ; Hyeon Woo KANG ; Hyeon Su RO
Mycobiology 2014;42(2):167-173
A beta-glucan synthase gene was isolated from the genomic DNA of polypore mushroom Sparassis crispa, which reportedly produces unusually high amount of soluble beta-1,3-glucan (beta-glucan). Sequencing and subsequent open reading frame analysis of the isolated gene revealed that the gene (5,502 bp) consisted of 10 exons separated by nine introns. The predicted mRNA encoded a beta-glucan synthase protein, consisting of 1,576 amino acid residues. Comparison of the predicted protein sequence with multiple fungal beta-glucan synthases estimated that the isolated gene contained a complete N-terminus but was lacking approximately 70 amino acid residues in the C-terminus. Fungal beta-glucan synthases are integral membrane proteins, containing the two catalytic and two transmembrane domains. The lacking C-terminal part of S. crispa beta-glucan synthase was estimated to include catalytically insignificant transmembrane alpha-helices and loops. Sequence analysis of 101 fungal beta-glucan synthases, obtained from public databases, revealed that the beta-glucan synthases with various fungal origins were categorized into corresponding fungal groups in the classification system. Interestingly, mushrooms belonging to the class Agaricomycetes were found to contain two distinct types (Type I and II) of beta-glucan synthases with the type-specific sequence signatures in the loop regions. S. crispa beta-glucan synthase in this study belonged to Type II family, meaning Type I beta-glucan synthase is expected to be discovered in S. crispa. The high productivity of soluble beta-glucan was not explained but detailed biochemical studies on the catalytic loop domain in the S. crispa beta-glucan synthase will provide better explanations.
Agaricales
;
Cell Wall
;
Classification
;
Clone Cells*
;
Cloning, Organism*
;
DNA
;
Efficiency
;
Exons
;
Glycogen Synthase
;
Humans
;
Introns
;
Membrane Proteins
;
Open Reading Frames
;
RNA, Messenger
;
Sequence Analysis
2.A Case of Giant Multilocular Prostatic Cystadenoma.
Hee Tak YANG ; Jeong Su KANG ; Dong Goo KANG ; Jang Wook SONG ; Ho Hyeon JEONG ; Nak Gyeu CHOI
Korean Journal of Urology 2000;41(6):791-793
No abstract available.
Cystadenoma*
3.A Case of Giant Multilocular Prostatic Cystadenoma.
Hee Tak YANG ; Jeong Su KANG ; Dong Goo KANG ; Jang Wook SONG ; Ho Hyeon JEONG ; Nak Gyeu CHOI
Korean Journal of Urology 2000;41(6):791-793
No abstract available.
Cystadenoma*
4.Xanthogranulomatous Cystitis Arising from the Posterior Wall of the Bladder.
Ki Su YANG ; Young Ho KIM ; Youl Kuen SEONG ; In Gon KIM ; Bo Hyeon HAN ; Su Jin KIM
Korean Journal of Urology 2011;52(12):868-869
Xanthogranulomatous cystitis is a rare, benign chronic inflammatory disease of unknown etiology. Herein we report a case of a 41-year-old man who presented with painless hematuria and a bladder mass on imaging studies.
Adult
;
Cystitis
;
Hematuria
;
Humans
;
Urinary Bladder
;
Xanthomatosis
5.Radiologic Findings of Ovarian Fibrothe.
Dong Cheol YANG ; Ju Hyeon IM ; Sun Su KIM ; Jong An KIM ; In Young KANG ; Kang Seok KO ; Byung Ran PARK
Journal of the Korean Radiological Society 2000;42(1):159-166
PURPOSE: To evaluate the radiologic features of fibrothecoma of the ovary, which is a rare solid tumor originating from the ovarian sex cord-stroma. MATERIALS AND METHODS: The radiologic findings of 29 patients with pathologically-proven fibrothecoma of the ovary were retrospectively evaluated for bilaterality, size, shape, margin, echogenecity, CT attenuation, signal intensity on magnetic resonance imaging, calcification, and amount of ascites. RESULTS: All fibrothecomas were unilateral, and had well defined margins. The diameter of the mass was 4-18(mean, 9.6)cms. Elghteen of 29 tumors were round or oval with a smooth margin, and eleven were lobulated. The internal architecture of the tumor was purely solid in 21 patients, predominantly solid in six, and pre-dominantly cystic in two. A broad spectrum of sonographic features was apparent, including a homogeneously hypoechoic mass (with posterior shadowing in four cases, and without posterior shadowing in ten), a homoge-neously hyperechoic mass in seven cases, an anechoic mass with septatations in two, and a mixed echoic mass in six. On precontrast CT scans, the mass was isodense to the uterine myometrium in eight of nine cases, while on postcontrast scans the lesion was slightly hypodense to the myometrium in seven cases and isodense in one. On T1-weighted MR images, nine of ten cases showed a relatively homogeneous low signal intensity, while on T2-weighted images, signal intensity was homogeneously low in two patients and predominantly low with focal high intensity in seven of the other eight. On gadolinium-enhanced T1-weighted images, most tu-mors showed slight heterogeneous enhancement. Calcifications were present in two cases, and in two others there was a large amount of ascites. CONCLUSION: The characteristic finding of ovarian fibrothecomas is a well-defined, oval or lobulated homoge-neously solid mass, which on CT scans enhances less than uterine myometrium and demonstrates a predomi-nantly low signal intensity on both T1- and T2-weighted images. However, a predominantly solid mass with cystic components or a predominantly cystic mass may also be presented.
Animals
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Ascites
;
Female
;
Humans
;
Magnetic Resonance Imaging
;
Mice
;
Myometrium
;
Ovary
;
Retrospective Studies
;
Shadowing (Histology)
;
Tomography, X-Ray Computed
;
Ultrasonography
6.The Weaning Method of inhaled Nitric Oxide.
Hyun Woo LEE ; Jae Woong LEE ; Sung Yeul HYUN ; Ha Chang LEE ; Chul Hyun PARK ; Kook Yang PARK ; Hyeon Su YOO ; Kyung Cheon LEE ; Young Jin JANG
Journal of the Korean Pediatric Society 2001;44(4):413-417
PURPOSE: inhaled nitric oxide(iNO) is an excellent method for the postoperative pulmonary hypertension in congenital heart disease. But more detailed care is needed because of the development of rebound pulmonary hypertension after NO Withdrawal. We performed this study in order to discontinue the iNO successfully by way of presenting the adequate weaning and supplying methods. METHODS: Between January, 1998 and August, 1999 we sudied 10 patients who had rebound pulmonary hypertension(RPH) after iNO withdrawal. We completed the iNO in these patween the first the second trial of the weaning process. We tried to discover the differences between the first and second weaning process. We measured NO concentration at the start and just before NO withdrawal and during the period of weaning process. Moreover, to identify the iNO effects during the weaning of the iNO, we counted the degree of the change of PaO2/FiO2and mean PAP/SAP beween initial and at half of the initial NO concentration. RESULTS: Second weaning had a longer duration weaning process(11+/-0 cersus 5+/- hours, P<0.05), lower NO concentration just before NO withdrawal(2+/-.6 versus 4+/-ppm, P<0.05). In the change of the mean PAP/SAP and PaO2/FiO2as iNO was weaning from the initial iNO concentration to a half of the initial iNO concentration, the degree of increase in mean PAP/SAP(0.026+/-.07 versus 0.054+/-.07, P<0.05) and the degree of decrease in PaO2/FiO2(49+/-4 versus 65+/-2, P<0.05) were smaller in the second in the second weaning process than the first weaning process. CONCLUSION: A successful weaning of iNO can be performed with a low iNO concentration at the start and just before withdrawal and with the long duration iNO weaning process. Moreover, We speculate that the degree of change in the mean PAP/SAP and PaO2/FiO2at the half of the iNO weaning process are an indicator for the development of RPH.
Heart Defects, Congenital
;
Humans
;
Hypertension, Pulmonary
;
Nitric Oxide*
;
Weaning*
7.Medication Adherence and its Predictors in Community Elderly Patients with Hypertension.
Sang Geun BAE ; Hye Ji JEON ; Hyeon Su YANG ; Bo Kyoung KIM ; Ki Soo PARK
Korean Journal of Health Promotion 2015;15(3):121-128
BACKGROUND: Medication adherence is important for hypertension management but still stay low level. It is reasonable method to classify medication nonadherence into intentional nonadherence and unintentional nonadherence and manage it according to this categories. This study aimed to explore medication adherence and its predictors in community patients with hypertension, especially dividing into intentional nonadherence and unintentional nonadherence. METHODS: Study subjects included 1,988 patients who were prescribed hypertension drugs among 2012 community health survey subjects of 10 cities in Gyeongsangnamdo and we analyzed medication adherence with hypertension and its predictors. We conducted chi-square test for nominal variable and ANOVA test for continuous variable and use multinominal regression to analyze independent predictors of intentional nonadherence and unintentional nonadherence in contrast to medication adherence. RESULTS: Of the 1,988 patients, 49.7% were adherent, 26.1% were unintentionally nonadherent and 24.2% intentionally nonadherent. Independent predictors of unintentional nonadherence were depressive symptoms (odds ratio [OR]=1.696, P=0.047) and arthritis (OR=1.319, P=0.030) and independent predictors of intentional nonadherence were cardiocerebrovascular disease (OR=1.464, P=0.044), self-efficacy (OR=0.984, P=0.007), beliefs about medications questionnaire (necessity [OR=0.834, P<0.001] and concern [OR=1.236, P<0.001]). CONCLUSIONS: In order to manage hypertension in community, improvement in medication adherence is needed. Depressive symptom and self-efficacy need to be managed, but especially patients'beliefs about their medication need to be considered to improve intentional nonadherence.
Aged*
;
Arthritis
;
Depression
;
Gyeongsangnam-do
;
Health Surveys
;
Humans
;
Hypertension*
;
Intention
;
Medication Adherence*
8.Multiple Cystic Lymphangiomas of the Penis, Scrotum and Lower Abdomen.
Hyeong Gon KIM ; Jeong Su PARK ; Hyeon Seok YANG ; Je Hee KIM ; Won Hee PARK
Korean Journal of Urology 2002;43(11):1001-1002
Lymphangiomas result from a failure of lymphatic drainage into the venous system due to atresia or an insufficiency of the efferent lymphatic channels. The neck and axillary regions are most commonly affected, while the condition is rarely found in the inguinal area, scrotum, retroperitoneal space, abdominal viscera, arm, pelvis or bones. We report a case of a cystic lymphangioma of the lower abdomen, penis and scrotum in a 29-year-old man.
Abdomen*
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Adult
;
Arm
;
Drainage
;
Humans
;
Lymphangioma
;
Lymphangioma, Cystic*
;
Male
;
Neck
;
Pelvis
;
Penis*
;
Retroperitoneal Space
;
Scrotum*
;
Viscera
9.Ogilvie's Syndrome after Lumbar Spinal Surgery
Su Keon LEE ; Seung Hwan LEE ; Byeong Mun PARK ; Bong Seok YANG ; Ji Hyeon KIM ; Hwan Mo LEE
Journal of Korean Society of Spine Surgery 2019;26(2):63-67
STUDY DESIGN: Case report. OBJECTIVES: We report a case of Ogilvie's syndrome following posterior decompression surgery in a spinal stenosis patient who presented with acute abdominal distension, nausea, and vomiting. SUMMARY OF LITERATURE REVIEW: Ogilvie's syndrome is a rare and potentially fatal disease that can easily be mistaken for postoperative ileus, and is also known as acute colonic pseudo-obstruction. Early recognition and diagnosis enable treatment prior to bowel perforation and requisite abdominal surgery. MATERIALS AND METHODS: An 82-year-old woman presented with 6 months of worsening back pain with walking intolerance due to weakness in both legs. She had hypertension, asthma, and Cushing syndrome without bowel or bladder symptoms. Further workup demonstrated the presence of central spinal stenosis on magnetic resonance imaging. The patient underwent an L2-3 laminectomy and posterior decompression. Surgery was uneventful. RESULTS: The patient presented with acute abdominal distension, nausea, and vomiting on postoperative day 1. The patient was initially diagnosed with adynamic ileus and treated conservatively with bowel rest, reduction in narcotic dosage, and a regimen of stool softeners, laxatives, and enemas. Despite this treatment, her clinical course failed to improve, and she demonstrated significant colonic distension radiographically. Intravenous neostigmine was administered as a bolus with a rapid and dramatic response. CONCLUSION: Ogilvie's syndrome should be included in the differential diagnosis of postoperative ileus in patients developing prolonged unexplained abdominal distension and pain after lumbar spinal surgery. Early diagnosis and initiation of conservative management can prevent major morbidity and mortality due to bowel ischemia and perforation.
Aged, 80 and over
;
Asthma
;
Back Pain
;
Colon
;
Colonic Pseudo-Obstruction
;
Cushing Syndrome
;
Decompression
;
Diagnosis
;
Diagnosis, Differential
;
Early Diagnosis
;
Enema
;
Female
;
Humans
;
Hypertension
;
Ileus
;
Ischemia
;
Laminectomy
;
Laxatives
;
Leg
;
Magnetic Resonance Imaging
;
Mortality
;
Nausea
;
Neostigmine
;
Spinal Stenosis
;
Urinary Bladder
;
Vomiting
;
Walking
10.Medial Meniscal Root Repair Using Curved Guide and Soft Suture Anchor.
Su Keon LEE ; Bong Seok YANG ; Byeong Mun PARK ; Ji Ung YEOM ; Ji Hyeon KIM ; Jeong Seok YU
Clinics in Orthopedic Surgery 2018;10(1):111-115
Medial meniscal root tears have been repaired using various methods. Arthroscopic all-inside repair using a suture anchor is one of the popular methods. However, insertion of the suture anchor into the proper position at the posterior root of the medial meniscus is technically difficult. Some methods have been reported to facilitate suture anchor insertion through a high posteromedial portal, a posterior trans-septal portal, or a medial quadriceptal portal. Nevertheless, many surgeons still have difficulty during anchor insertion. We introduce a technical tip for easy suture anchor insertion using a 25° curved guide and a soft suture anchor through a routine posteromedial portal.
Menisci, Tibial
;
Surgeons
;
Suture Anchors*
;
Sutures*
;
Tears