1.Allergic Contact Dermatitis and Conjuntivitis due to Pontocaine.
Cheong Ku KANG ; Kee Hyun LEE ; Moo Shik SOHN
Journal of the Korean Ophthalmological Society 1981;22(2):401-405
A patient with corneoscleral dermoid was suspected of having allergic contact dermatitis and conjuntivitisdue to Pontocaine. She was tested with standard European patch test including other suspected medicaments used in the preparation of eye drops. The patient showed + + positive patch test reaction to pontocaine, caine mixture and benzocaine under 2 day and 4 day patch test reading. The importance of routine patch test in ophthalmic patients whenever contact conjuntivitis is suspected is stressed.
Benzocaine
;
Dermatitis, Allergic Contact*
;
Dermoid Cyst
;
Humans
;
Ophthalmic Solutions
;
Patch Tests
;
Tetracaine*
2.A Case of Retinitis Punctata Albescens.
Journal of the Korean Ophthalmological Society 1982;23(3):773-777
Retinitis Punctata Albescens is a condition characterized by night blindness and the presence of multiple small discrete white dots scattered over the fundus except in the macular area. Progressive form is progressive loss of the visual field, deterioration of central vision, anomalies of color vision, night blindness, some optic atrophy and occasionally appearance of pigmentary changes. Stationary form is benign evolution, little or no constriction of the visual field, good visual acuity and the presence of white dots in the fundus without pigmentary changes. Recently, the authors have been experienced Retinitis Punctata Albescens in 50-year-old male whose complaint was night blindness and slight impairment of visual acuity. Clinical, ophthalmoscopic examination, visual field test, color vision test, fluorescein angiography and electroretinography were performed in patient.
Color Vision
;
Constriction
;
Electroretinography
;
Fluorescein Angiography
;
Humans
;
Male
;
Middle Aged
;
Night Blindness
;
Optic Atrophy
;
Retinitis*
;
Visual Acuity
;
Visual Field Tests
;
Visual Fields
3.Alteration in gyrA and parC Gene Associated with Fluoroquinolone Resistance of Enterococcus spp. Isolated from Feces of Chicken.
Jae Keun CHO ; Ki Seuk KIM ; Young Ju LEE ; Cheong Kyu PARK ; Dong Mi KWAK ; Ae Ran KIM ; Min Su KANG ; Jong Wan KIM ; Byoung Han KIM ; Bok Kyung KU
Journal of Bacteriology and Virology 2006;36(2):73-78
The purpose of this study was to investigate the fluoroquinolone resistance frequency of Enterococcus spp. from normal chicken feces and to analyse mutations of the gyrA and parC gene associated with fluoroquinolone resistance. Among 52 Enterococcus faecalis and 25 E. faecium isolates, 23 (44.2%) E. faecalis and 7 (28.0%) E. faecium were resistant to ciprofloxacin (CIP) by disc diffusion method. Genetic exchange in gyrA and parC gene among 2 CIP intermediate isolates and 15 CIP resistant isolates were found in the amino acid codon of Ser-83 and Asp-87, and Ser-80 and Glu-84, respectively. These mutants contained a change from Ser to Phe, Val, Tyr, Ile, Thr or Pro at codon 83 and from Glu to Gly or Leu at codon 87 in gyrA gene, and a change from Ser to Ile or Thr at codon 80 and from Glu to Asp or Lys at codon 84 in parC gene. The isolates with mutation in gyrA regardless of a mutation in parC showed high resistance (MIC > or =32 microgram/ml) to CIP, enrofloxacin, norfloxacin and ofloxacin. These results suggested that gyrA gene is the primary target for 4 fluoroquinolones resistance in Enterococcus spp.
Chickens*
;
Ciprofloxacin
;
Codon
;
Diffusion
;
Enterococcus faecalis
;
Enterococcus*
;
Feces*
;
Fluoroquinolones
;
Norfloxacin
;
Ofloxacin
;
Viperidae
4.Effects of Selective Cyclooxygenase-2 Inhibitor NS-398 Pretreatment on the Rat Spinal Cord after Contusion Injury.
Hyeon Dae CHEONG ; Joo Kyung SUNG ; In Suk HAM ; Ku Seong KANG ; Joung Ok KIM ; Jung Wan KIM ; Tae In PARK ; Yoon Kyung SOHN
Korean Journal of Pathology 2006;40(4):255-262
BACKGROUND: Secondary spinal cord injury (SCI) that follows an initial mechanical insult can exacerbate the overall damage, limit the restorative processes and eventually lead to an in- creased neurological deficit. We hypothesized that selective inhibition of cyclooxygenase-2 (COX-2) may decrease the delayed cell death, and so this will contribute to decreased level of the secondary injury. METHODS: The dorsal surface of the cord at the T9 level was subjected to weight drop impact using a 10 g rod. To block COX-2 activation, a selective COX-2 inhibitor (NS-398) was administered (5 mg/kg, i.p.) 15 min prior to SCI. The COX-1, COX-2, Caspase-3 and PGE2 expressions were measured by real time quantitative RT-PCR and fluorescence immunostaining. RESULTS: Many activated caspase-3 positive cells were observed at 6 h and they increased until 72 h after SCI. The expression of COX-2 peaked at 6 h after SCI, while the COX-1 expression was unaffected. The principal cells that showed a COX-2 expression were the neurons and microglia. Pretreatment with NS-398 caused a significant decrease in the expression of prostaglandin E2 and activated caspase-3 positive cells after SCI. CONCLUSION: These data suggest that COX-2 is one of the main factors related with the pathologic deficits from secondary SCI.
Animals
;
Caspase 3
;
Cell Death
;
Contusions*
;
Cyclooxygenase 2 Inhibitors
;
Cyclooxygenase 2*
;
Dinoprostone
;
Fluorescence
;
Microglia
;
Neurons
;
Rats*
;
Spinal Cord Injuries
;
Spinal Cord*
5.Simplified EM Grid Vitrification Is a Convenient and Efficient Method for Mouse Mature Oocyte Cryopreservation.
Seok Hyun KIM ; Seung Yup KU ; Ki Cheong SUNG ; Moon Joo KANG ; Sung Ah KIM ; Hee Sun KIM ; Sun Kyung OH ; Byung Chul JEE ; Chang Suk SUH ; Young Min CHOI ; Jung Gu KIM ; Shin Yong MOON
Yonsei Medical Journal 2006;47(3):399-404
This study was performed to evaluate the efficiency of simplified EM grid vitrification, skipping the step of removing the cryoprotectant (5.5M EG + 1.0M sucrose) droplet on the grid after loading oocytes, compared to conventional cryopreservation protocols for mouse mature oocytes. Firstly, the recovery, survival, fertilization and hatching rates of simplified EM grid vitrification were compared with those of the slow freezing method using 1.5M DMSO. Then, conventional EM grid vitrification was compared with simplified EM grid vitrification. Simplified EM grid vitrification showed higher survival, fertilization and hatching rates than those of the slow freezing method (85.6% vs. 63.2%; 51.0% vs. 22.3%; 38.7% vs. 12.5%, p < 0.01, respectively). Moreover, simplified EM grid vitrification showed higher recovery, survival and fertilization rates than those of conventional EM grid vitrification (100% vs. 95.0%, p=0.024; 90.0% vs. 78.9%, p=0.033; 56.7% vs. 38.7%, p=0.021, respectively). Hatching rate tended to be higher for simplified EM grid vitrification compared to conventional EM grid vitrification (41.1% vs. 24.1%). In conclusion, simplified EM grid vitrification is a convenient and efficient method for cryopreservation of mouse mature oocytes, compared to conventional EM grid vitrification and slow freezing methods.
Pregnancy
;
Oocytes/*cytology
;
Mice, Inbred DBA
;
Mice, Inbred C57BL
;
Mice
;
Male
;
*Fertilization in Vitro
;
Female
;
Cryopreservation/*instrumentation/*methods
;
Cell Survival
;
Animals
6.The Study on Comparison of Clinical Outcomes of Intracytoplasmic Sperm Injection in Patients with Epididymal Sperm and Testicular Sperm.
Ki Cheong SUNG ; Moon Joo KANG ; Hee Sun KIM ; Sun Kyung OH ; Seung Yup KU ; Chang Suk SUH ; Seok Hyun KIM ; Young Min CHOI ; Jung Gu KIM ; Shin Yong MOON
Korean Journal of Fertility and Sterility 2003;30(2):119-126
OBJECTIVE: This study was carried out to compare the clinical outcomes of intracytoplasmic sperm injection (ICSI) in patients with obstructive azoospermia according to sperm retrieval site and technique; microsurgical epididymal sperm aspiration (MESA), percutaneous epididymal sperm aspiration (PESA), testicular sperm extraction by open biopsy (TESE). METHODS: The outcomes of ICSI and IVF-ET were evaluated and compared among 3 groups. Seventy three men suffering from infertility due to obstructive azoospermia had 107 ICSI cycles using MESA (21 cycles in 15 patients), PESA (26 cycles in 17 patients) and TESE (60 cycles in 41 patients). RESULTS: In the clinical outcomes in patients undergoing ICSI with epididymal or testicular sperm, there were no significant differences in fertilization rate (66.1% vs. 60.5%), cleavage rate (94.9% vs. 97.6%), cumulative embryo score (CES) (51.3 vs. 58.8), implantation rate (7.9% vs. 6.1), and clinical pregnancy rate per ET (30.4% (14/46) vs. 25.4% (15/59)) between both groups. Also, in the clinical outcomes in ICSI patients using MESA, PESA, TESE, there were no significant differences in fertilization rate (61.8%, 69.4%, 60.5%), cleavage rate (92.1%, 97.3%, 97.6%), CES (38.1, 52.0, 58.8), implantation rate (9.5%, 6.6%, 6.1%), and clinical pregnancy rate per ET (35% (7/20), 26.9% (7/26), 25.4% (15/59)) among 3 groups. CONCLUSION: When compared with MESA or TESE, PESA, the clinical outcomes were similar in ICSI patients with obstructive azoospermia whatever the origin or the technique of sperm retrieval. However, we considered PESA is more time-saving and cost effective for ICSI in patients with obstructive azoospermia.
Azoospermia
;
Biopsy
;
Embryonic Structures
;
Fertilization
;
Humans
;
Infertility
;
Male
;
Pregnancy Rate
;
Sperm Injections, Intracytoplasmic*
;
Sperm Retrieval
;
Spermatozoa*
7.The Study on Comparison of Clinical Outcomes of Intracytoplasmic Sperm Injection in Patients with Epididymal Sperm and Testicular Sperm.
Ki Cheong SUNG ; Moon Joo KANG ; Hee Sun KIM ; Sun Kyung OH ; Seung Yup KU ; Chang Suk SUH ; Seok Hyun KIM ; Young Min CHOI ; Jung Gu KIM ; Shin Yong MOON
Korean Journal of Fertility and Sterility 2003;30(2):119-126
OBJECTIVE: This study was carried out to compare the clinical outcomes of intracytoplasmic sperm injection (ICSI) in patients with obstructive azoospermia according to sperm retrieval site and technique; microsurgical epididymal sperm aspiration (MESA), percutaneous epididymal sperm aspiration (PESA), testicular sperm extraction by open biopsy (TESE). METHODS: The outcomes of ICSI and IVF-ET were evaluated and compared among 3 groups. Seventy three men suffering from infertility due to obstructive azoospermia had 107 ICSI cycles using MESA (21 cycles in 15 patients), PESA (26 cycles in 17 patients) and TESE (60 cycles in 41 patients). RESULTS: In the clinical outcomes in patients undergoing ICSI with epididymal or testicular sperm, there were no significant differences in fertilization rate (66.1% vs. 60.5%), cleavage rate (94.9% vs. 97.6%), cumulative embryo score (CES) (51.3 vs. 58.8), implantation rate (7.9% vs. 6.1), and clinical pregnancy rate per ET (30.4% (14/46) vs. 25.4% (15/59)) between both groups. Also, in the clinical outcomes in ICSI patients using MESA, PESA, TESE, there were no significant differences in fertilization rate (61.8%, 69.4%, 60.5%), cleavage rate (92.1%, 97.3%, 97.6%), CES (38.1, 52.0, 58.8), implantation rate (9.5%, 6.6%, 6.1%), and clinical pregnancy rate per ET (35% (7/20), 26.9% (7/26), 25.4% (15/59)) among 3 groups. CONCLUSION: When compared with MESA or TESE, PESA, the clinical outcomes were similar in ICSI patients with obstructive azoospermia whatever the origin or the technique of sperm retrieval. However, we considered PESA is more time-saving and cost effective for ICSI in patients with obstructive azoospermia.
Azoospermia
;
Biopsy
;
Embryonic Structures
;
Fertilization
;
Humans
;
Infertility
;
Male
;
Pregnancy Rate
;
Sperm Injections, Intracytoplasmic*
;
Sperm Retrieval
;
Spermatozoa*
8.alpha-Asarone Ameliorates Memory Deficit in Lipopolysaccharide-Treated Mice via Suppression of Pro-Inflammatory Cytokines and Microglial Activation.
Jung Won SHIN ; Young Jin CHEONG ; Yong Mo KOO ; Sooyong KIM ; Chung Ku NOH ; Young Ha SON ; Chulhun KANG ; Nak Won SOHN
Biomolecules & Therapeutics 2014;22(1):17-26
alpha-Asarone exhibits a number of pharmacological actions including neuroprotective, anti-oxidative, anticonvulsive, and cognitive enhancing action. The present study investigated the effects of alpha-asarone on pro-inflammatory cytokines mRNA, microglial activation, and neuronal damage in the hippocampus and on learning and memory deficits in systemic lipopolysaccharide (LPS)-treated C57BL/6 mice. Varying doses of alpha-asarone was orally administered (7.5, 15, or 30 mg/kg) once a day for 3 days before the LPS (3 mg/kg) injection. alpha-Asarone significantly reduced TNF-alpha and IL-1beta mRNA at 4 and 24 hours after the LPS injection at dose of 30 mg/kg. At 24 hours after the LPS injection, the loss of CA1 neurons, the increase of TUNEL-labeled cells, and the up-regulation of BACE1 expression in the hippocampus were attenuated by 30 mg/kg of alpha-asarone treatment. alpha-Asarone significantly reduced Iba1 protein expression in the hippocampal tissue at a dose of 30 mg/kg. alpha-Asarone did not reduce the number of Iba1-expressing microglia on immunohistochemistry but the average cell size and percentage areas of Iba1-expressing microglia in the hippocampus were significantly decreased by 30 mg/kg of alpha-asarone treatment. In the Morris water maze test, alpha-asarone significantly prolonged the swimming time spent in the target and peri-target zones. alpha-Asarone also significantly increased the number of target heading and memory score in the Morris water maze. The results suggest that inhibition of pro-inflammatory cytokines and microglial activation in the hippocampus by alpha-asarone may be one of the mechanisms for the alpha-asarone-mediated ameliorating effect on memory deficits.
Animals
;
Cell Size
;
Cytokines*
;
Head
;
Hippocampus
;
Immunohistochemistry
;
Learning
;
Maze Learning
;
Memory
;
Memory Disorders*
;
Mice*
;
Microglia
;
Neurons
;
RNA, Messenger
;
Swimming
;
Tumor Necrosis Factor-alpha
;
Up-Regulation
9.alpha-Asarone Ameliorates Memory Deficit in Lipopolysaccharide-Treated Mice via Suppression of Pro-Inflammatory Cytokines and Microglial Activation.
Jung Won SHIN ; Young Jin CHEONG ; Yong Mo KOO ; Sooyong KIM ; Chung Ku NOH ; Young Ha SON ; Chulhun KANG ; Nak Won SOHN
Biomolecules & Therapeutics 2014;22(1):17-26
alpha-Asarone exhibits a number of pharmacological actions including neuroprotective, anti-oxidative, anticonvulsive, and cognitive enhancing action. The present study investigated the effects of alpha-asarone on pro-inflammatory cytokines mRNA, microglial activation, and neuronal damage in the hippocampus and on learning and memory deficits in systemic lipopolysaccharide (LPS)-treated C57BL/6 mice. Varying doses of alpha-asarone was orally administered (7.5, 15, or 30 mg/kg) once a day for 3 days before the LPS (3 mg/kg) injection. alpha-Asarone significantly reduced TNF-alpha and IL-1beta mRNA at 4 and 24 hours after the LPS injection at dose of 30 mg/kg. At 24 hours after the LPS injection, the loss of CA1 neurons, the increase of TUNEL-labeled cells, and the up-regulation of BACE1 expression in the hippocampus were attenuated by 30 mg/kg of alpha-asarone treatment. alpha-Asarone significantly reduced Iba1 protein expression in the hippocampal tissue at a dose of 30 mg/kg. alpha-Asarone did not reduce the number of Iba1-expressing microglia on immunohistochemistry but the average cell size and percentage areas of Iba1-expressing microglia in the hippocampus were significantly decreased by 30 mg/kg of alpha-asarone treatment. In the Morris water maze test, alpha-asarone significantly prolonged the swimming time spent in the target and peri-target zones. alpha-Asarone also significantly increased the number of target heading and memory score in the Morris water maze. The results suggest that inhibition of pro-inflammatory cytokines and microglial activation in the hippocampus by alpha-asarone may be one of the mechanisms for the alpha-asarone-mediated ameliorating effect on memory deficits.
Animals
;
Cell Size
;
Cytokines*
;
Head
;
Hippocampus
;
Immunohistochemistry
;
Learning
;
Maze Learning
;
Memory
;
Memory Disorders*
;
Mice*
;
Microglia
;
Neurons
;
RNA, Messenger
;
Swimming
;
Tumor Necrosis Factor-alpha
;
Up-Regulation
10.High Prevalence of Opisthorchis viverrini Infection in a Riparian Population in Takeo Province, Cambodia.
Tai Soon YONG ; Eun Hee SHIN ; Jong Yil CHAI ; Woon Mok SOHN ; Keeseon S EOM ; Dong Min LEE ; Keunhee PARK ; Hoo Gn JEOUNG ; Eui Hyug HOANG ; Yoon Hee LEE ; Hyun Ju WOO ; Ji Hwa LEE ; Sin Il KANG ; Jae Ku CHA ; Keon Hoon LEE ; Cheong Ha YOON ; Muth SINUON ; Duong SOCHEAT
The Korean Journal of Parasitology 2012;50(2):173-176
Opisthorchis viverrini infection was found to be highly prevalent in 3 riverside villages (Ang Svay Chek A, B, and C) of the Prey Kabas District, Takeo Province. This area is located in the southern part of Cambodia, where the recovery of adult O. viverrini worms was recently reported. From May 2006 until May 2010, fecal examinations were performed on a total of 1,799 villagers using the Kato-Katz thick smear technique. In the 3 villages, the overall positive rate for helminth eggs ranged from 51.7 to 59.0% (av. 57.4%), and the percentage positive for O. viverrini was 46.4-50.6% (47.5%). Other helminths detected included hookworms (13.2%), echinostomes (2.9%), Trichuris trichiura (1.3%), Ascaris lumbricoides (0.6%), and Taenia spp. (0.06%). The prevalence of O. viverrini eggs appeared to reflect a lower infection in younger individuals (<20 years) than in the adult population (>20 years). Men (50.4%) revealed a significantly higher (P=0.02) prevalence than women (44.3%). The Ang Svay Chek villages of the Prey Kabas District, Takeo Province, Cambodia have been confirmed to be a highly endemic area for human O. viverrini infection.
Adolescent
;
Adult
;
Aged, 80 and over
;
Animals
;
Cambodia/epidemiology
;
Child
;
Child, Preschool
;
Coinfection/epidemiology
;
Feces/parasitology
;
Female
;
Humans
;
Infant
;
Male
;
Middle Aged
;
Opisthorchiasis/*epidemiology
;
Opisthorchis/*isolation & purification
;
Prevalence
;
Rural Population
;
Young Adult