1.Safe way for using NiTi rotary files.
Restorative Dentistry & Endodontics 2015;40(1):96-96
No abstract available.
2.Evaluation of Cardioprotective Effects of DelNido Cardioplegia.
Seok Jeoung WOO ; Bong Hyun CHANG ; Kyu Tae KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 2000;33(8):613-622
BACKGROUND: The aim of this study is to define the cardioprotective effects (functional and metabolic) of newly developed DelNido cardioplegic solution (containing plasma solution, mannitol, magnesium and lidocaine). MATERIAL AND METHOD: This study assessed the function of rat hearts after itermittent infusion of DelNido cardioplegia with different preserving methods(Air or Icebox) for 2hours and perfusing the hearts on a Langendorff apparatus. Heart rate, left ventricular developed pressure (LVDP) and coronary flow, were measured at pre-ischemic, post-reperfusion 15min, 30min and 45min. Coronary flow was standardized to dry heart weight. Each weight was weighted to calculate water content. Creatine kinase-MB isoenzyme release was measured and ultrastructural assessment was done with electron microscopes. DelNido group was better than St, Thomas group and Icebox group was better than Room-air group. CONCLUSION: DelNido cardioplegia have better myocardial protective effects than St. Thomas cardioplegia when they were preserved in the Room-air. But we can not tell the difference between Delnido cardiplegia with Air preserving method and St. Thomas cardioplegia with Icebox.
Animals
;
Cardioplegic Solutions
;
Creatine
;
Heart
;
Heart Arrest, Induced*
;
Heart Rate
;
Magnesium
;
Mannitol
;
Plasma
;
Rats
;
Water
3.Detection of leptoapiral DNA by nucleic acid hybridization with 32P-labeld probe.
Seok Yong KIM ; Woo Hyun CHANG ; Ik Sang KIM
Journal of the Korean Society for Microbiology 1991;26(4):329-335
No abstract available.
DNA*
;
Nucleic Acid Hybridization*
4.Study on antigenic analysis and serial antibody titration by using leptospira interrogans isolated at Chungchongbukdo.
Kyung Hee PARK ; Seok Cheol HONG ; Woo Hyun CHANG
Journal of the Korean Society for Microbiology 1991;26(4):317-327
No abstract available.
Chungcheongbuk-do*
;
Leptospira interrogans*
;
Leptospira*
5.An Experimental Study about the Effects of Parathyroid Hormone on Osteoblasts
Seung Woo SUH ; Seok Hyun LEE ; Jae Seok CHANG ; Myong Kon KIM
The Journal of the Korean Orthopaedic Association 1996;31(1):140-153
Authors concluded an experimental study in order to find out what the effects of parathyroid hormone on cells derived from human Trabecular bone in vitro are on terms of proliferation of cells, adenylate cyclase activity and production of small substances such as osteocalcin and collagen type I. The results were as follows; 1. 3H-thymidine incorporation into cultured osteoblast was initially low (day 1–2), increased by exponential curve from day 3 till day 11. The uptakes of 3H-thymidine by osteoblasts, when bovine parathyroid hormone was added, increased dose-dependently. Greater increments were seen at concentrations of bovine PTH higher than 5.0 X10-8 mole. 2. Intracellular c-AMP accumulation was stimulated by bovine PTH in a dose-dependent manner and greater production was seen at concentrations of bovine PHT higher than 5.0 X10-8 mole. Maximal stimulation was observed at 1 X10-7 mole of bovine PTH. The concentrations of c-AMP were observed significantly higher in the presence of bovine PTH in a dose-dependent manner when compared to those of bovine PTH-absent culture condition. 3. Treatment with bovine parathyroid hormone of cultured osteoblasts resulted in increase of alkaline phophatase activity and synthesis of osteocalcin in the cultured media in a dose-dependent manner. Greater productions were observed at concentrations of bovine PTH higher than 5.0 X10-8 mole. 4. Synthesis of type I collagen by cultured osteoblasts in bovine PTH-added media was inversely proportional to their concentration, whereas control group showed minimal increments of no significance. These in vitro findings may suggest that PTH has a stimulatory effect on proliferation of osteoblast, c-AMP production and alkaline phosphatase activity in a direct manner.
Adenylyl Cyclases
;
Alkaline Phosphatase
;
Cell Proliferation
;
Collagen Type I
;
Humans
;
In Vitro Techniques
;
Osteoblasts
;
Osteocalcin
;
Parathyroid Hormone
6.A Case of Dandy-Walker Syndrome with Chromosomal Abnormality.
Hyui Sung CHANG ; Seok Kyu LEE ; Gi Chung LEE ; Woo Ki LEE ; Kwang Woo KIM
Journal of the Korean Pediatric Society 1994;37(12):1784-1788
The Dandy-Walker syndrome is a developmental disorders of the brain characterized by cystic deformity of the 4th ventricle and agensis of the cerebellar vermis. Other systemic anomalies and chromosomal abnormalities are associated with this syndrome. We are experienced a case in a 9 months old male infant who presented initially with frequent vomiting, low birth weight, On the physical examination, a prominent occiput, palpable mass below the right upper quadrant, pulmonary valve stenosis, congenital dislocation of the hips, ventral flexion of fingers, clubfoots and the rocker-bottom deformities of feet were present. On the chromosomal study, there were chromosomal polymorphisms in a thickened C-band of chromosome No. 1 by C-banding method. The brain CT revealed a large, thin-walled, low density mass of CSF without enhancement in the posterior fossa, showing upward displacement of cerebellar hemisphere with absent inferior vermis(or associated with dysplastic cerebellar hemisphere). A brief review of the related literatures were included in this report.
Brain
;
Chromosome Aberrations*
;
Clubfoot
;
Congenital Abnormalities
;
Dandy-Walker Syndrome*
;
Dislocations
;
Fingers
;
Foot
;
Hip
;
Humans
;
Infant
;
Infant, Low Birth Weight
;
Infant, Newborn
;
Male
;
Physical Examination
;
Pulmonary Valve Stenosis
;
Vomiting
7.Two cases of Arnold-Chiari malformation type II.
Woo Ki LEE ; Hyui Sung CHANG ; Seok Kyu LEE ; Ewng Won PARK ; Kwang Woo KIM
Journal of the Korean Pediatric Society 1993;36(2):287-291
Arnold-Chirai malformation type II is congenital disorder which consists of downward displacement into upper cervical spinal canal of parts of the cerebellum, 4th ventricle, and medulla oblongata. We experienced two cases of Arnold-Chiari malformation with lumbar meningomyelocele, hydrocephalus. We confirmed the cases by brain C-T and report with brieft review of the lilterature.
Arnold-Chiari Malformation*
;
Brain
;
Cerebellum
;
Congenital, Hereditary, and Neonatal Diseases and Abnormalities
;
Hydrocephalus
;
Medulla Oblongata
;
Meningomyelocele
;
Spinal Canal
8.ERRATUM: Unilateral Lumbosacral Facet Interlocking without Facet Fracture.
Sang Woo HA ; Chang Il JU ; Seok Won KIM ; Chang Su UM
Journal of Korean Neurosurgical Society 2009;45(4):264-264
In the March 2009 edition of the Journal of Korean Neurosurgical Society, we published an article entitled "Unilateral Lumbosacral Facet Interlocking without Facet Fracture" (Volume 45, pages 182-184). Fig. 1B on page 183 was supposed to be printed in color, but it was printed in black by mistake. We apologize to the authors and readers of JKNS for any inconvenience.
9.Tuberculous Spondylitis Complicated with Descending Aortic Pseudoaneurysm: Report of 1 Case.
Dong Gyu LEE ; Woo Dong NAM ; Ki Chan AHN ; Seung Seok SEO ; Young Chang KIM ; Jang Seok CHOI
Journal of Korean Society of Spine Surgery 1998;5(2):342-347
Tuberculous spondylitis is not rare disease. Today the posterior instrumentation and posterior or posterolateral fusion concomitant with the anterior decompression and anterior interbody fusion have been used for the treatment of spinal tuberculosis. The authors experienced a case of tuberculous spondylitis complicated with descending aortic pseudoaneurysm. An aneurysm is defined as a localized dilatation of an artery that is at least one-half the size greater than is expected for that artery. Pseudoaneurysm occurring after previous operation, trauma, and infection. Erosion of the thoracic aorta with the development of an fistula in the presence of infection is an unusual and difficult problem to manage. We report a case and review related articles briefly.
Aneurysm
;
Aneurysm, False*
;
Aorta, Thoracic
;
Arteries
;
Decompression
;
Dilatation
;
Fistula
;
Rare Diseases
;
Spondylitis*
;
Tuberculosis, Spinal
10.A Inflammed Plantar Epidermal Cyst Misdiagnosed as Secondary Infection of Calluses.
Yoon Seok YANG ; Soeun PARK ; Soo Jung SHIN ; Chang Sun YOO ; Chul Woo KIM ; Sang Seok KIM
Korean Journal of Dermatology 2014;52(2):153-154
No abstract available.
Bony Callus*
;
Coinfection*
;
Epidermal Cyst*