1.Sequential Activation of AMPA Receptors and Glial Cells in a Pain Model of Lumbar Spine Disc Herniation
Annals of Rehabilitation Medicine 2020;44(5):343-352
Objective:
To investigate the glial cell and AMPA (alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid) receptor activity after surgery for disc herniation pain model.
Methods:
In total, 83 Sprague-Dawley rats were randomly assigned to the following groups: control (n=16), sham-operated (n=4), rats for pain behavior evaluation (n=3), nucleus pulposus-exposed groups for AMPA receptors (n=30), and glial cell (n=30). The rats were tested for mechanical allodynia; immunohistochemical staining for AMPA receptors (GluA1 and GluA2) and glial cells (OX-42 and glial fibrillary acid protein [GFAP]) in the spinal dorsal horn was performed on postoperative days 3, 7, and 14.
Results:
Mechanical withdrawal thresholds decreased after surgery, and this effect was maintained for up to 14 days. Immunohistochemical expression of GluA1 and GluA2 in the spinal dorsal horn had increased quantitatively on postoperative days 3 and 7 (p<0.05) to levels similar to that of the controls on postoperative day 14. Moreover, immunohistochemical expression of OX-42 and GFAP showed similar changes to AMPA receptors after surgery. Although the activity of AMPA receptors and glial cells achieved normalcy, the mechanical withdrawal threshold of the hind paw remained decreased 38 days after surgery.
Conclusion
The rat model of lumbar disc herniation showed increased expression of AMPA receptor and glial cell activity in the spinal dorsal horn 3 and 7 days after surgery, which deceased to control levels at 14 days. The AMPA receptors and glial cell activations showed similar patterns after disc herniation surgery.
2.A Case of Leflunomide Induced Vasculitis.
Kyu LEE ; Dong Gyu KIM ; Ji Hyun OH ; Dong Il LEE ; Choong Won LEE
The Journal of the Korean Rheumatism Association 2004;11(4):459-460
No abstract available.
Vasculitis*
3.Intrageneric Relationships of Trichoderma Based on Internal Transcribed Spacers and 5.8S rDNA Nucleotide Sequences.
Gi Young KIM ; Goang Jae LEE ; Myung Gyu HA ; Tae Ho LEE ; Jae Dong LEE
Mycobiology 2000;28(1):11-16
The nucleotide sequences of the internal transcribed spacer (ITS) regions of the ribosomal DNA including the 5.8S ribosomal RNA gene (rDNA) have been determined for 11 species in order to analyze their intrageneric relationships. The total length of these sequences ranged from 530 nucleotides for Trichoderma reesei KCTC 1286 to 553 nucleotide for Trichoderma koningii IAM 12534. Generally speaking, the length of ITS1 region was about 30 nucleotides longer than that of the ITS2 region. Also, the sequences of 5.8S rDNA were more conserved in length and variation than those of ITS regions. Although the variable ITS sequences were often ambiguously aligned, the conserved sites were also found. Thus, a neighbor-joining tree was constructed using the full sequence data of the ITS regions and the 5.8S rDNA. The Trichoderma genus used to be grouped on the basis of the morphological features and especially the shape of phialides needs to be reexamined. The phylogenetic tree displayed the presence of monophylogeny in the species of Trichoderma. Therefore, it was difficult to distinguish the intrageneric relationships in the Trichoderma genus.
Base Sequence*
;
DNA, Ribosomal*
;
Nucleotides
;
Phylogeny
;
RNA, Ribosomal, 5.8S
;
Trichoderma*
4.Two cases of islet cell hyperplasia with nesidioblastosis.
Myeong Ku CHO ; Kyeong Bae PARK ; Gyu Bum CHO ; Dong Hwan LEE ; Sang Jhoo LEE
Journal of the Korean Pediatric Society 1991;34(2):273-280
No abstract available.
Hyperplasia*
;
Islets of Langerhans*
;
Nesidioblastosis*
5.Two Cases of Subconjunctival Bevacizumab Injection to Prevent Bleb Failure After Trabeculectomy.
Journal of the Korean Ophthalmological Society 2008;49(8):1345-1349
PURPOSE: Angiogenesis is an integral part of wound healing, which is an unwanted process in the postoperative period after trabeculectomy. It was the aim of this study to report on the subconjunctival use of bevacizumab (Avastin(R)) as an antiproliferative agent to augment trabeculectomy. CASE SUMMARY: This clinical interventional case study included 2 patients with secondary glaucoma associated with uveitis who underwent antiglaucomatous filtering surgery combined with a subconjunctival injection of bevacizumab. Limbal-based trabeculectomy was performed, and subconjunctival injections (1.25 mg/0.05 ml) were given at the end of the surgery adjacent to the bleb, which was raised using a single-use 26 gauge needle. At 1 and 2 weeks and 1, 3, and 6 months after surgery, intraocular pressure was reduced in both patients to 11 mmHg with functioning filtering blebs. No complications were observed. CONCLUSIONS: The results suggest that subconjunctival bevacizumab injection may be helpful in reducing the risk of postoperative scarring of the filtering bleb.
Antibodies, Monoclonal, Humanized
;
Blister
;
Cicatrix
;
Filtering Surgery
;
Glaucoma
;
Humans
;
Intraocular Pressure
;
Needles
;
Postoperative Period
;
Trabeculectomy
;
Uveitis
;
Wound Healing
;
Bevacizumab
6.The Influence of Lifestyle Behaviors and Body Mass Index Changes on Long-term Outcomes After Gastric Cancer Surgery: A Population-Based Cohort Study
Ju-Hee LEE ; Jiyeong KIM ; Dong-Gyu LEE
Journal of Gastric Cancer 2025;25(2):356-369
Purpose:
The present study investigated the impact of lifestyle behaviors and body mass index (BMI) on late recurrence, gastric remnant cancer (GRC), and long-term survival after curative gastrectomy.
Materials and Methods:
This retrospective study utilized data from the Korean National Health Insurance claims database. Among 71,014 patients with gastric cancer who underwent curative gastrectomy between January 2009 and December 2012, 23,359 remained cancerfree for five years. Of these, 7,735 patients with health examination data within 2 years before surgery and 5 years after surgery were analyzed for lifestyle behaviors, including smoking, alcohol consumption, and physical activity. Multivariable analysis was used to evaluate the independent effects of these factors and changes in BMI on late recurrence, GRC, and longterm survival.
Results:
Late recurrence or GRC occurred among 628 patients (8.1%). Older age (≥60 years) and total gastrectomy were identified as risk factors. Although lifestyle behaviors and BMI changes did not directly affect recurrence, they significantly affected mortality. In the total gastrectomy group, current underweight status (hazard ratio [HR], 1.586) was associated with increased mortality. Among the partial gastrectomy group, continued smoking (HR, 1.366) and current underweight status (HR, 1.915) increased mortality risk. Conversely, regular physical activity (starting: HR, 0.674; continuing: HR, 0.699) and postoperative overweight or obesity (BMI >25 kg/m 2 ) (HR, 0.713) were associated with reduced mortality.Changes in alcohol consumption showed inconsistent effects between the partial and total gastrectomy groups.
Conclusions
The long-term survival of post-gastrectomy patients improved with smoking cessation, regular physical activity, and maintenance of body weight.
7.The Influence of Lifestyle Behaviors and Body Mass Index Changes on Long-term Outcomes After Gastric Cancer Surgery: A Population-Based Cohort Study
Ju-Hee LEE ; Jiyeong KIM ; Dong-Gyu LEE
Journal of Gastric Cancer 2025;25(2):356-369
Purpose:
The present study investigated the impact of lifestyle behaviors and body mass index (BMI) on late recurrence, gastric remnant cancer (GRC), and long-term survival after curative gastrectomy.
Materials and Methods:
This retrospective study utilized data from the Korean National Health Insurance claims database. Among 71,014 patients with gastric cancer who underwent curative gastrectomy between January 2009 and December 2012, 23,359 remained cancerfree for five years. Of these, 7,735 patients with health examination data within 2 years before surgery and 5 years after surgery were analyzed for lifestyle behaviors, including smoking, alcohol consumption, and physical activity. Multivariable analysis was used to evaluate the independent effects of these factors and changes in BMI on late recurrence, GRC, and longterm survival.
Results:
Late recurrence or GRC occurred among 628 patients (8.1%). Older age (≥60 years) and total gastrectomy were identified as risk factors. Although lifestyle behaviors and BMI changes did not directly affect recurrence, they significantly affected mortality. In the total gastrectomy group, current underweight status (hazard ratio [HR], 1.586) was associated with increased mortality. Among the partial gastrectomy group, continued smoking (HR, 1.366) and current underweight status (HR, 1.915) increased mortality risk. Conversely, regular physical activity (starting: HR, 0.674; continuing: HR, 0.699) and postoperative overweight or obesity (BMI >25 kg/m 2 ) (HR, 0.713) were associated with reduced mortality.Changes in alcohol consumption showed inconsistent effects between the partial and total gastrectomy groups.
Conclusions
The long-term survival of post-gastrectomy patients improved with smoking cessation, regular physical activity, and maintenance of body weight.
8.The Influence of Lifestyle Behaviors and Body Mass Index Changes on Long-term Outcomes After Gastric Cancer Surgery: A Population-Based Cohort Study
Ju-Hee LEE ; Jiyeong KIM ; Dong-Gyu LEE
Journal of Gastric Cancer 2025;25(2):356-369
Purpose:
The present study investigated the impact of lifestyle behaviors and body mass index (BMI) on late recurrence, gastric remnant cancer (GRC), and long-term survival after curative gastrectomy.
Materials and Methods:
This retrospective study utilized data from the Korean National Health Insurance claims database. Among 71,014 patients with gastric cancer who underwent curative gastrectomy between January 2009 and December 2012, 23,359 remained cancerfree for five years. Of these, 7,735 patients with health examination data within 2 years before surgery and 5 years after surgery were analyzed for lifestyle behaviors, including smoking, alcohol consumption, and physical activity. Multivariable analysis was used to evaluate the independent effects of these factors and changes in BMI on late recurrence, GRC, and longterm survival.
Results:
Late recurrence or GRC occurred among 628 patients (8.1%). Older age (≥60 years) and total gastrectomy were identified as risk factors. Although lifestyle behaviors and BMI changes did not directly affect recurrence, they significantly affected mortality. In the total gastrectomy group, current underweight status (hazard ratio [HR], 1.586) was associated with increased mortality. Among the partial gastrectomy group, continued smoking (HR, 1.366) and current underweight status (HR, 1.915) increased mortality risk. Conversely, regular physical activity (starting: HR, 0.674; continuing: HR, 0.699) and postoperative overweight or obesity (BMI >25 kg/m 2 ) (HR, 0.713) were associated with reduced mortality.Changes in alcohol consumption showed inconsistent effects between the partial and total gastrectomy groups.
Conclusions
The long-term survival of post-gastrectomy patients improved with smoking cessation, regular physical activity, and maintenance of body weight.
9.Clinical Significance of PCR-Based Rapid Detection of Mycobacterium tuberculosis DNA in Peripheral Blood.
Gyu Won KIM ; Jae Myung LEE ; Min Jong KANG ; Jee Woong SON ; Seung Joon LEE ; Dong Gyu KIM ; Myung Goo LEE ; In Gyu HYUN ; Ki Suck JUNG ; Young Kyung LEE ; Kyung Wha LEE
Tuberculosis and Respiratory Diseases 2001;50(5):599-606
BACKGROUND: Since the advent of AIDS, tuberculosis has become a major public health problem in the western society. Therefore, it is essential that pulmonary tuberculosis be rapidly diagnosed. Light microscopic detection of acid-fast organisms in sputum has traditionally been used for rapidly diagnosing tuberculosis. However positive smears are only observed in about one-half to three-quarters of cases. Studies using PCR for diagnosing pulmonary tuberculosis disclosed several shortcomings suggesting an inability to distinguish between active and treated or in active tuberculosis. In this study, the clinkcal significance of a PCR-bases rapid technique for detecting Mycobacterium tuberculosis DNA in peripheral blood investigated. MATERIALS AND METHODS: From July 1, 1998 through to August 30, 1999, 59 patients with presumed tuberculosis, who had no previous history of anti-tuberculosis medication use whithin one year prior to this study were recruite and followed up for more than 3 months. AFB stain and culture in the sputum and/or pleural fluids and biopsies when needed were performed. Blood samples from each of the 59 patients were obtained in order to identify Mycobacterium Tuberculosis DNA by a PCR test. RESULTS: 1) Forty five out of 59 patients had a final diagnosis of tugerculosis; Twenty eight were confirmed as having active pulmonary tuberculosis by culture or biopsy. Four were clinkcally diagnosed with pulmonary tuberculosis. The othe 13 patients were diagnosed as having tuberculous pleurisy (9) and extrapulmonary tuberculosis (4). 2) Fourteen patients showed a positive blood PCR test. The PCR assay correctly identified active tuberculosis in 13 out of 14 patients. The overall sensitivity and specificity of this blood PCR assay for diagnosing tuberculosis were 29% and 93%, respectively. The positive predictive value was 93%, the negative predictive value was 29% and diagnostic accuracy was 44%. 3) Six out of 14(43%) patients with blood PCR positive tuberculosis were immunologically compromised hosts. 4) A simple chest radiograph in blood PCR positive tuberculosis patients showed variable and inconsistent findings. CONCLUSION: A peripheral blood PCR assay for Mycobacterium tuberculosis is not recommended as screening method for diagnosing active tuberculosis. However, it was suggested that the blood PCR assay could contribute to an early diagnostic rate due to its high positive predictive value.
Biopsy
;
Diagnosis
;
DNA*
;
Humans
;
Mass Screening
;
Mycobacterium tuberculosis*
;
Mycobacterium*
;
Polymerase Chain Reaction
;
Public Health
;
Radiography, Thoracic
;
Sensitivity and Specificity
;
Sputum
;
Tuberculosis
;
Tuberculosis, Pleural
;
Tuberculosis, Pulmonary
10.A Study on Cardiac Abnormalities in Patients with Ankylosing Spondylitis and Undifferentiated Spondyloarthropathy.
Young Ho LEE ; Jong Dai JI ; Dong Kyu JIN ; Chang Gyu PARK ; Hong Seog SEO ; Dong Joo OH ; Gwan Gyu SONG
The Journal of the Korean Rheumatism Association 1997;4(1):52-59
OBJECTIVE: To investigate the frequency, type and severity of cardiac abnormalities in the patients with ankylosing spondylitis and undifferentiated spondyloarthopathy. METHODS: A history, clinical examination, standard 12 lead electrocardiography, two dimensional, M mode, and Doppler echocardiographies were performed on 19 patients with ankylosing spondylitis, 15 patients with undifferentiated spondyloarthropathy and 21 normal controls. RESULTS: 1) Cardiac abnormalities were detected in 8 patients(42.1%) with ankylosing spondylitis. 2) Cardiac abnormalities were detected in 8 patients(53.3%) with undifferentiated spondyloarthropathy including 2 patients with aortic valve abnormalities(mild aortic insufficiency, aortic valve thickening. 3) Cardiac abnormalities were detected in one (4. 8%) among normal controls (mild tricuspid regurgitation). 4) There were sinus bradycardias on electrocardiography in 2 patients among patients witn anl;ylosing spond!litis and in 1 patient among undifferentiated spondyloarthropathy. But there was no conduction disturbance in both groups. 5) The frequency of cardiac abnormality was higher in patients with ankylosing spondylitis and undifferentiated spondyloarthropathy than in normal controls. 6) The mean age, mean disease duration, presence of uveitis, peripheral arthritis, HLA-B27, enthesopathy, Schober test and chest expansion in the patients with ankylosing spondylitis and undifferentiated spondyloarthropathy with cardiac abnormalities were not different from those in the patients without cardiac abnormalities. CONCLUSION: The frequency of cardiac abnormality was higher in patients with ankylosing spondylitis and undifferentiated spondyloarthropathy than in normal controls. The frequency, type and severity of cardiac involvement in patients with ankylosing spondylitis were not different from those in patients with undifferentiated spondyloarthropathy.
Aortic Valve
;
Aortic Valve Insufficiency
;
Arthritis
;
Bradycardia
;
Electrocardiography
;
HLA-B27 Antigen
;
Humans
;
Rheumatic Diseases
;
Spondylarthropathies*
;
Spondylitis, Ankylosing*
;
Thorax
;
Uveitis