1.Analysis of genes involved in the pathogenesis of intracellularly survival bacteria.
Tae Il JEON ; Tae Yoon LEE ; Sung Kwang KIM
Yeungnam University Journal of Medicine 1992;9(2):248-255
Eight bacterial strains were examined whether they have phoP/phoQ genes which were known to be involved in the intracellular survival of Salmonella typhimurium. The phoP/phoQ operon were known to sense the stimuli of the genes involved in the adaptation of the environment. Using 514-basepairs EcoRV DNA fragment of phoP region of Salmonella typhimurium as a probe, dot blot hybridization were performed. Chromosomal DNAs of Klebsiella pneumonia, Pseudomonas aeruginosa, Serratia marscescens, Enterobacter cloacae, Salmonella typhimurium, Escherichia coli, Shigella dysenteriae, and Listeria monocytogenes were examined by DNA hybridization assay. Against our expectation, intracellular pathogen, L. monocytogenes, did not have similar DNA sequences to phoP/phoQ of S. typhimurium, while E, coli, S. dysenteriae, and E. cloacae showed the positive signal even though they were not intracellular pathogens. This result suggested that the phoP/phoQ operon was absent in intracellular pathogenic bacterias other than S. typhimurium. Rather it was found in phylogenetically closer bacterias to S. typhimurium, which were not able to survive in intracellular environment. Some different mechanism, which is not dependent on phoP/phoQ operon, could be involved in the intracellular survival of L. monocytogenes.
Bacteria*
;
Base Sequence
;
Cloaca
;
DNA
;
Enterobacter cloacae
;
Escherichia coli
;
Klebsiella
;
Listeria monocytogenes
;
Operon
;
Pneumonia
;
Pseudomonas aeruginosa
;
Salmonella typhimurium
;
Serratia
;
Shigella dysenteriae
2.Treatment of Complex Supracondylar Fractures of the Femur with External Fixation
Hyung Ku YOON ; Kwang Pyo JEON ; Dae Eun JUNG ; Ho Seung JEON ; Kye Sung LEE
The Journal of the Korean Orthopaedic Association 1994;29(6):1605-1613
The authors report the clinical results of ten cases of complex supracondylar fractures treated by external fixation with a mean follow up of 21 months. Six cases were closed comminuted fracture, and four cases were open fractures. By AO classification six cases were type C2, two type C3, one type Al, and one type A3. Four cases had associated vascular injury. Reduction was performed by closed method in eight cases, and two cases were reduced through open wound. All cases healed at average of 142 days. Final healing of all cases occurred with an average range of motion of 3°-119° except one case which required reapplication due to infected nonunion with a gap. In nine cases of the ten functional results were rated as "good", and one case was "fair" by Iowa Knee Rating Scale. In conclusion, definitive external fixation can be a good alternative treatment modality despite previous recommendations to limit external fixation to temporary application in cases of limb salvage, such as severe comminution or pre-existing infection.
Classification
;
External Fixators
;
Femur
;
Follow-Up Studies
;
Fractures, Comminuted
;
Fractures, Open
;
Iowa
;
Knee
;
Limb Salvage
;
Methods
;
Range of Motion, Articular
;
Vascular System Injuries
;
Wounds and Injuries
3.Non-Hodgkin's Malignant Lymphoma Arising in the Appendix: A case report.
Yun Sin KIM ; Mi Sook LEE ; Kwang Seok Lee LEE ; Sung Chul LIM ; Ho Jong JEON
Korean Journal of Pathology 1995;29(4):524-526
Primary malignant lymphoma of the appendix is an unconnnon neoplasm although the gastrointestinal tract is the most common extranodal site of malignant lymphoma. We report a case of primary malignant lymphoma of the appendix in a 54-year-old male, who presented with pain in the right lower abdomen. An appendectomy was performed. The appendix measured 9.5 cm in length and 5.5 cm in diameter. Cut sections showed a solitary circumferential mass in the appendiceal lumen. Light microscopic features were compatible with malignant lymphoma of diffuse large cell type(Working Formulation) and the immunophenotype was B cell type.
4.Comparison of Clinical and EMG Diagnosis of Involuntary Eyelid Closure.
Jae Myun CHUNG ; Beom S JEON ; Kwang Woo LEE
Journal of the Korean Neurological Association 1996;14(3):761-772
BACKGROUND: Blepharospasm and apraxia of lid opening (ALO) are nonparalytic causes of involuntary eyelid closure (IEC). Recently Aramideh (1994) divided the IEC into 5 groups by electromyography (EMG) study, and reported that each group had different responses to Botulinum A toxin treatment. Objective : We looked whether clinical observation can match the EMG, and possibly predict the response to Botulinum A toxiu treatment. Method : Based on EMG study of Aramideh (1994), clinically observable characteristics of each group were defined. One of the authors reviewed the videotapes of IEC and applied the above criteria to make the clinical diagnosis. Other author blinded to the clinical information performed 2 channel EMG of levator palpebrae superioris (LP) and orbicularis oculi (00) muscles, and made the EMG diagnosis. Clinical and EMG diagnoses were matched. Results : Twenty five patients (5 men and 20 women) were included in the study. Clinically, 16 were diagnosed as group I (blepharospasm), 1 as group 111(combined blepharospasm and LP motor impersistence), 7 as group tV(combined blepharospasm and involuntary LP inhibition), and 1 as group V(involuntary LP inhibition). There were no patient in group ll (combined dystonic activities of LP and 00). On EMG study, 14 were diagnosed as group 1, 2 as group ll, 1 as group 111, 7 as group IV, and 1 as group V The mismatch between the two diagnoseis occurred between group I and tV in 4 patients, group I and ll in 2, and group I and 111 in 2. Conclusions : Clinical observations are generally correct in predicting EMG diagnosis. Holvever groups with mixed features(ll, 111, and Iv) are difficult to diagnose by clinical observation only. Usefulness of clinical and EMG diagnosis on predicting Botulinum A toxin response will need to be evaluated. Key Words : Involuntary eyelid closure, Blepharospasm, Apraxia of lid opening, Electromyography.
Apraxias
;
Blepharospasm
;
Botulinum Toxins, Type A
;
Diagnosis*
;
Electromyography
;
Eyelids*
;
Humans
;
Male
;
Muscles
;
Videotape Recording
5.Current status of general thoracic surgery in Korea.
Young Jin JEON ; Kyung SUN ; Kwang Taek KIM ; In Sung LEE ; Hark Jei KIM ; Hyoung Mook KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 1992;25(5):504-510
No abstract available.
Korea*
;
Thoracic Surgery*
6.Successful Hysterectomy and Therapeutic Hypothermia Following Cardiac Arrest due to Postpartum Hemorrhage.
Kwang Ho LEE ; Seong Jin CHOI ; Yeong Gwan JEON ; Raing Kyu KIM ; Dae Ja UM
Korean Journal of Critical Care Medicine 2016;31(4):359-363
Postpartum hemorrhage is a common cause of maternal mortality; its main cause is placenta accreta. Therapeutic hypothermia is a generally accepted means of improving clinical signs in postcardiopulmonary resuscitation patients. A 41-year-old pregnant woman underwent a cesarean section under general anesthesia at 37 weeks of gestation. After the cesarean section, the patient experienced massive postpartum bleeding, which led to cardiac arrest. Once spontaneous circulation returned, the patient underwent an emergency hysterectomy and was placed under therapeutic hypothermia management. The patient recovered without neurological complications.
Adult
;
Anesthesia, General
;
Cesarean Section
;
Emergencies
;
Female
;
Heart Arrest*
;
Hemorrhage
;
Humans
;
Hypothermia
;
Hypothermia, Induced*
;
Hysterectomy*
;
Maternal Mortality
;
Placenta Accreta
;
Postpartum Hemorrhage*
;
Postpartum Period*
;
Pregnancy
;
Pregnant Women
;
Resuscitation
7.Keratoacanthoma Centrifugum Marginatum.
You Chan KIM ; Hwan Pyo JEON ; Kwang Hyun CHO ; Yoo Shin LEE
Annals of Dermatology 1989;1(1):40-42
No abstract available.
Keratoacanthoma*
8.Changes of natural killer cell cytotoxicity after treatment with prednisolone and interferon-alpha of chronic active hepatitis B.
Jeon Soo SHIN ; In Hong CHOI ; Kwan Sik LEE ; Kwang Hub HAN ; Se Jong KIM
Korean Journal of Immunology 1992;14(2):221-229
No abstract available.
Hepatitis, Chronic*
;
Interferon-alpha*
;
Killer Cells, Natural*
;
Prednisolone*
9.Clinical study of noncemented using AML femoral stem hip arthroplasty.
Seong Ho YUNE ; Kwang Jin RHEE ; June Kyu LEE ; Deuk Soo HWANG ; Dae Sik JEON
The Journal of the Korean Orthopaedic Association 1993;28(5):1495-1504
No abstract available.
Arthroplasty*
;
Hip*
10.Biomechanical Analysis of Tendon Suture Tecniques
Kwang Suk LEE ; Jae Young JEON ; Kyung Jo WOO ; Cheol Hyo BAE
The Journal of the Korean Orthopaedic Association 1996;31(2):255-264
Successful repair of lacerated tendons must restore continuity of the tendon and should yield a strong tenorrhaphy. Mechanical strength of repair should be adequate to early postoperative motion and mobility, The optimal repair technique must be able to withstand the rigors of early motion and also must not interfere with tendon healing. The relative strength of three suture methods of lacerated tendon were measured by mechanical disruption in effort to determine the strength of suture technique. Fifty-four Calcaneal tendons of 27 the New Zealand white rabbit were transected at mid portion and repaired with the three suture technique: group 1, Kessler suture, group 2, Pennington’s modified-Kessler suture and group 3, augmented- Becker suture technique. Each group was composed of 18 calcaneal tendons. Nine rabbits were sacrified immediately after suture, nine in postoperative 2 weeks and nine in postoperative 4 weeks Six calcaneal tendons in each three experimental group were obtained immediately after suture, at postoperative 2 and 4 weeks respectively. Tensile strength, maximum strength and modulus of elasticity of all experimental specimens were measured with Instron-UTM-4-100(Toyo-Baldiwin, Japan). The results were evaluated statistically to compare the strength of the three suture technique at three different periods. The tensile strength was predominantly strongest in augmented-Becker method among three suture technique at immediate suture, postoperative 2 weeks and 4 weeks respectively. The augmented Becker repair was strongest in maximum stress among Kessler and modified Kessler repair at immediate operation, postoperative 2 weeks and 4 weeks respectively. The augmented Becker repair was highest in modulus of elasticity than Kessler method and modified-Kessler method at immediate operation, postoperative 2 weeks and postoperative 4 weeks respectively. Tensile strength, maximum stress and modulus of elasticity were gradually increased from immediate operation to postoperative 4 weeks, but there were not statistically significance between experimental three suture methods at postoperative 4 weeks.
Elastic Modulus
;
Methods
;
New Zealand
;
Rabbits
;
Suture Techniques
;
Sutures
;
Tendons
;
Tensile Strength