1.Effect of Pioglitazone on Excitotoxic Neuronal Damage in the Mouse Hippocampus.
Choong Hyun LEE ; Min Hee YI ; Dong Jin CHAE ; Enji ZHANG ; Sang Ha OH ; Dong Woon KIM
Biomolecules & Therapeutics 2015;23(3):261-267
Pioglitazone (PGZ), a synthetic peroxisome proliferator-activated receptor gamma agonist, is known to regulate inflammatory process and to have neuroprotective effects against neurological disorders. In the present study, we examined the effects of 30 mg/kg PGZ on excitotoxic neuronal damage and glial activation in the mouse hippocampus following intracerebroventricular injection of kainic acid (KA). PGZ treatment significantly reduced seizure-like behavior. PGZ had the neuroprotective effect against KA-induced neuronal damage and attenuated the activations of astrocytes and microglia in the hippocampal CA3 region. In addition, MPO and NFkappaB immunoreactivities in the glial cells were also decreased in the PGZ-treated group. These results indicate that PGZ had anticonvulsant and neuroprotective effects against KA-induced excitotocix injury, and that neuroprotective effect of PGZ might be due to the attenuation of KA-induced activation in astrocytes and microglia as well as KA-induced increases in MPO and NFkappaB.
Animals
;
Astrocytes
;
CA3 Region, Hippocampal
;
Hippocampus*
;
Kainic Acid
;
Mice*
;
Microglia
;
Nervous System Diseases
;
Neuroglia
;
Neurons*
;
Neuroprotective Agents
;
PPAR gamma
2.Erratum to: Sclerosing Stromal Tumor of the Ovary in Postmenopausal Women: A Report of Two Cases.
Chae Min LEE ; Soyi LIM ; Hyun Yi CHO ; Ji Sung LEE ; Jin Woo SHIN
Journal of Menopausal Medicine 2015;21(3):175-175
In this article, on page 115, the title has been spelled incorrectly in this article.
3.Sclerosing Sromal Tumor of the Ovary in Postmenopausal Women: A Report of Two Cases.
Chae Min LEE ; Soyi LIM ; Hyun Yi CHO ; Ji Sung LEE ; Jin Woo SHIN
Journal of Menopausal Medicine 2015;21(2):115-119
Sclerosing stromal tumor (SST) was first delineated as a distinct ovarian sex cord stromal tumor in 1973 by Chalvardjian and Scully. It is a benign neoplasm, distinguished from other ovarian stromal tumors by the production of collagen and a pseudolobular pattern, and it tends to occur in the second and third decades of life in diagnosed patients. We discovered two rare cases of SST in post-menopausal women which are the topic of this report. These case studies are accompanied by a brief review of the literature.
Collagen
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Female
;
Humans
;
Menopause
;
Ovarian Neoplasms
;
Ovary*
;
Sex Cord-Gonadal Stromal Tumors
4.Current Advances in the Development of Vaccines and Therapeutic Agents Against MERS-coV.
Na Rae LEE ; Chae Min YI ; Kyung Soo INN
Journal of Bacteriology and Virology 2015;45(4):382-388
Middle East respiratory syndrome (MERS) is an emerging infectious disease caused by the betacoronavirus (MERS-CoV). Since the isolation and identification of MERS-CoV in 2012, cases have been spread to neighboring nations in Arabian Peninsula area and Europe. The recent outbreak of MERS in Korea confirmed that MERS-CoV is capable of causing epidemics through person-to-person transmission. Despite of its high mortality, there is no available effective vaccine and therapeutic agent partly due to its short history. So far, ribavirin and interferon therapy has been failed to prove its efficacy in human patients. Thus, there is an urgent need for the effective countermeasures such as vaccines and therapeutics. In the current review, recent advances in the development of vaccines and therapeutic antibodies have been discussed.
Antibodies
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Communicable Diseases, Emerging
;
Europe
;
Humans
;
Interferons
;
Korea
;
Middle East
;
Mortality
;
Ribavirin
;
Vaccines*
5.Two Cases of Congenital Preauricular Fistula.
Koo Seog CHAE ; Young Min PARK ; Jong Yuk YI ; Tae Yoon KIM ; Chung Won KIM
Korean Journal of Dermatology 1996;34(3):450-453
The auricle develops from six auricular tubercles which originate from the mesenchyme of the first and second branchial arch. If a defective fusion of these tubercles occur, a preauricular fistula may be formed. We report two cases of congenital preauricular fistula manifested by soft nodules with external openings on the left preauricular area. Histologically, the fistulas are lined by stratified squamous epithelium, and elastic cartilage. and chronic inflammatory cell infiltration are also present.
Branchial Region
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Elastic Cartilage
;
Epithelium
;
Fistula*
;
Mesoderm
6.Comparison of Coracohumeral Ligament Thickness between Asymptomatic Shoulders and Adhesive Capsulitis in Korean.
Dong Rak KWON ; Min Young KIM ; Yu Jin CHAE ; Jun Sung PARK ; Joo Sup KIM ; Tae Im YI
Journal of the Korean Academy of Rehabilitation Medicine 2009;33(4):392-395
OBJECTIVE: To evaluate the difference of coracohumeral ligament (CHL) thickness between asymptomatic shoulders and adhesive capsulitis. METHOD: Ultrasound examination was performed in 44 consecutive shoulders of 24 individuals (12 males and 12 females). Nine were diagnosed as adhesive capsulitis by clinical examination. We measured the maximum thickness of CHL. For CHL assessment, participants were scanned in sitting position with shoulder in maximal external rotation, elbow in 90 degrees flexion, forearm in neutral position, and hand in fist. The transducer was positioned between coracoid process and greater tuberosity of humerus. We used t test to compare the CHL thickness between asymptomatic and adhesive capsulitis and bivariate correlation analysis to assess a correlation between age and CHL thickness. RESULTS: There was a significant positive linear relationship between age and CHL thickness (p<0.01, gamma=0.424). In female, there was a positive linear relationship between age and CHL thickness (p<0.01, gamma=0.610). However, in male, there was no significant correlation (gamma=0.224). The mean value of CHL thickness was 1.53 mm in 9 adhesive capsulitis and 0.92 mm in 35 asymptomatic ones. CHL thickness was significantly greater in adhesive capsulitis than in asymptomatic ones (p < 001). CONCLUSION: The thickened CHL is a good suggestive diagnostic value of adhesive capsulitis.
Adhesives
;
Bursitis
;
Elbow
;
Female
;
Forearm
;
Hand
;
Humans
;
Humerus
;
Ligaments
;
Male
;
Shoulder
;
Transducers
7.Comparison of the Forefoot Pressure-Relieving Effects of Foot Orthoses
Tae Im YI ; Eun Chae LEE ; Nak Hoon SON ; Min Kyun SOHN
Yonsei Medical Journal 2022;63(9):864-872
Purpose:
Metatarsal pads are prescribed to decrease forefoot plantar pressure. However, the appropriate metatarsal pad placement location remains a debated issue. We aimed to identify the most effective insole design that reduces forefoot plantar pressure and determine the optimal position for metatarsal pad placement.
Materials and Methods:
We recruited 16 healthy adult volunteers, and measured their plantar pressure data during walking while using an in-shoe system. The volunteers were randomly assigned to one of four insole conditions: 1/16-inch insole (i.e., control), 1/4-inch soft plastazote (SP) flat insole, metatarsal pad positioned proximal to the metatarsal head (MTH) on the control insole (P0), and metatarsal pad positioned 10 mm distal from the proximal border of the MTH on the control insole (P10). A masking protocol was created by dividing the forefoot into three subareas, distal to the MTH (dMTH), beneath to the MTH (bMTH), and proximal to the MTH (pMTH). The participants reported their comfort level for each insole using a visual analog scale.
Results:
The SP flat insole and metatarsal pads both had a forefoot plantar pressure-reducing effect and provided insole comfort. Of the three insole designs, the SP flat insole was the most effective. No clear difference existed in efficacy in terms of the location of the metatarsal pad placement.
Conclusion
Considering the possibility of discomfort caused by improper metatarsal pad placement, the SP that increases shock absorption may be more clinically useful.
8.A Study on Olfactory Function in Painters Exposed to Organic Solvent in a Shipyard.
Keong Bum MIN ; Jun Seok SON ; Chang Ho CHAE ; Young Wook KIM ; Cheol Ho YI ; Chan Woo KIM ; Young Who SHIN
Korean Journal of Occupational and Environmental Medicine 2009;21(3):246-258
OBJECTIVES: To investigate the effect of the occupational exposure to organic solvent on the olfactory function of shipyard painters; we measured the prevalence of olfactory function impairment between the exposure group and the controls by using the Korean Version of the Sniffin'Stick (KVSS) test through smell, and by analyzing factors related to olfactory alteration. METHODS: The olfactory function of 245 painters exposed to organic solvents was compared to that of 122 unexposed controls. A total of 367 shipyard subjects underwent questionnaire study and the olfactory function test was performed by KVSS test I from April to August 2007. Suspected subjects of abnormal findings were referred to an otorhinolaryngologist. In addition, the Biologic Exposure Index (BEI) and industrial hygiene laboratory data were collected as well as analyzed by job title in the exposure group. RESULTS: The difference in the result of KVSS test I was significantly different from the exposure group and the controls (P<0.05). For the exposure group, reduced olfaction and exposure group were correlated with statistical significance when compared to the controls (P<0.01). Adjusting for work duration, smoking, rhinitis or sinusitis history, exposure of the organic solvent (OR 1.76, 95% CI=1.05-2.96) had a statistically meaningful relationship with decreased olfaction. The data on BEI for the exposure group were collected; the difference in methylhippuric acid was significant between spray workers and others, but did not correlate well with decreased olfaction. CONCLUSION: Occupational exposure to organic solvents in shipyard painters may affect the olfactory function. Therefore, shipyard painters should be monitored on a periodic bases by the quantitative test such as KVSS test. There is no other quantitative testing method or standardized procedure that can objectively diagnose the neurotoxic effect, further enhanced quality research in this field is necessary.
Occupational Exposure
;
Occupational Health
;
Paintings
;
Prevalence
;
Questionnaires
;
Rhinitis
;
Sinusitis
;
Smell
;
Smoke
;
Smoking
;
Solvents
9.Regulation of Host Cell Signaling Pathways by Respiratory Syncytial Virus Nonstructural Protein NS1 and NS2.
Han Bo SHIN ; Myung Soo CHOI ; Chae Min YI ; Ji Eun KIM ; Su Ji JO ; Hye In KIM ; Na Rae LEE ; Kyung Soo INN
Journal of Bacteriology and Virology 2014;44(3):283-289
Human Respiratory Syncytial virus (hRSV) is a leading cause of severe lower respiratory tract diseases in the pediatric population.hRSV frequently causes severe morbidity and mortality in high risk groups including infants with congenital heart disease and the immunosuppressed patients. Although hRSV is recognized as a major public health threat and economic burden worldwide, there is no licensed vaccine and effective therapeutic agent. Viral nonstructural (NS) proteins have been known to play multiple functions for efficient viral replication and pathogenesis. Especially, diverse functions of influenza A virus NS1 have been extensively studies. Recent studies demonstrated that NS1 and NS2 of RSV also exert diverse functions to modulate cellular environment and antiviral immune responses. Since NS proteins of RSV are required for efficient replication and pathogenesis, NS mutant viruses have been tested as live-attenuated vaccines. This review will outline the recent progress in understanding the various functions of RSV NS1 and NS2.
Heart Defects, Congenital
;
Humans
;
Infant
;
Influenza A virus
;
Interferons
;
Mortality
;
Public Health
;
Respiratory Syncytial Virus, Human
;
Respiratory Syncytial Viruses*
;
Respiratory Tract Diseases
;
Vaccines
10.Phacoemulsification and acryl foldable intraocular lens implantation in dogs: 32 cases.
Na Young YI ; Shin Ae PARK ; Man Bok JEONG ; Won Tae KIM ; Se Eun KIM ; Je Min CHAE ; Kang Moon SEO
Journal of Veterinary Science 2006;7(3):281-285
This study evaluated the surgical outcome and complications of phacoemulsification and the implantation of an acryl foldable intraocular lens (IOL) with a squared edge in dogs with cataracts. Thirty-two eyes from 26 dogs were examined. The mean follow up period was 75.9 days ranging from 23 to 226 days. The complications after phacoemulsification were posterior capsular opacity (PCO) around the IOL (n = 11), ocular hypertension (n = 4), focal posterior synechia (n = 4), hyphema (n = 3) and corneal ulcer (n = 2). The complications associated with the IOL were decenteration of the optic (n = 2) and ventral haptic displacement (n = 1). Most cases of PCO were found only around the margin of the IOL, and all eyes had vision during the observation period. In conclusion, the implantation of an acryl-foldable lens with a squared edge at the time of phacoemulsification is an effective method for preserving the central visual field of dogs with cataract.
Animals
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Cataract/*veterinary
;
Dog Diseases/*surgery
;
Dogs/*surgery
;
Female
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Lens Implantation, Intraocular/adverse effects/*veterinary
;
Male
;
Phacoemulsification/adverse effects/*veterinary
;
Retrospective Studies