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정영철,이종범,박형배,정성덕,성형모,사공정규 대한생물치료정신의학회 2001 생물치료정신의학 Vol.7 No.1
Objectives : This study is to verify the developmental changes of ADHD symptoms and functions with aging from 7 to 12 year-old. Method : The subjects of this study were 120 children(108 boys and 12 girls) who were diagnosed as ADHD by DSM - IV at department of neuropsychiatry of Yeungnam University Medical Center. Multidementional tests(K-ABC, ADDES-HV, CAP, CPT, KPl-C, WCST) were carried out to evaluate the change of ADHD symptoms and functions. Results : In K-ABC, children with ADHD showed statistically significant increased "Reading and Understanding" ability(p<.001) with age. In ADDES-HV, They showed decreased inattention (p<.05) and hyperactivity(p<.05) but, not showed significant change of impulsivity symptom with age. In CAP, They showed decreased hyperactivity(p<.001) and inattention (p<.05) and lower total score(p<.05) with age. their result were similar with ADDES-HV. In CPT, They showed decreased hit reaction time(p<.001) and hit reaction time standard errors(p<.01) and variability of standard errors(p<.05) with age. In KPI-C, They showed decreased anxiety(p<.01), depression(p<.001), somatization(p<.05), delinquency(p<.05) and hyperactivity(p<.01) with age. Social relationship(P<.05) was improved, as well as decreased psychoticism(p<.05) and autism (p<.001). In WCST, They showed increased completed categories(p<.001), total corrects(p<.001) and fewer total errors (p<.001) with age. Conclusion : Above findings indicate that symptoms of inattention and hyperactivity in school-aged ADHD children tend to decline with age, but age was less associated with decline in impulsivity symptom . In additions, Their executive functions were improved notably and they appeared stability of emotion, close social relationship and decreased delinquency.
QTL analysis related to grain qualities under high temperature during ripe stage in rice
Jeong-Ju Kim,Young-Jun Mo,Woon-Cheol Shin,Ki-Young Kim,Jeom-Ho Lee 한국육종학회 2014 한국육종학회 심포지엄 Vol.2014 No.07
This study was conducted to identify quantitative trait loci (QTL) related to grain qualities under high temperature during ripening stage using 187 Korean rice varieties. To analyze grain qualities under high temperature during ripening stage, grain appearance such as head rice and chalky grains percentage and physicochemical characteristics were investigated and SNP genotyping of 187 Korean varieties was conducted for association analysis related with grain qualities under high temperature. Five traits exhibited continuous distributions in the non-glutinous Korean varieties, indicating that these traits are controlled by multiple genes. Association mapping among non-glutinous Korean varieties was conducted using 223 markers showed polymorphism among 384 SNP markers. Six QTLs for chalk grains percentage were mapped to chromosomes 1, 4, 10 and 11. These six QTLs were linked to the SNP marker id1014176 on chromosome 1, id4010924 on chromosome 4, id10000644 on chromosome 10 and id11011505 on chromosome 11, and explained approximately 21, 61, 50, 23, 23 and 21% of the total phenotypic variance. Four QTLs for head rice percentage in chromosomes 4, 10 explained the total phenotypic variance by over 47% and around 20%. Fifteen QTLs for RVA characteristics including hot paste viscosity, peak viscosity and setback viscosity were mapped to chromosome 1, 6, 7, 12 and QTLs were explained around 20% of the total phenotypic variance.
( Cheol Hun Choi ),( Woong Mo Kim ),( Hyung Gon Lee ),( Cheol Won Jeong ),( Chang Mo Kim ),( Seong Heon Lee ),( Myung Ha Yoon ) 대한통증학회 2010 The Korean Journal of Pain Vol.23 No.4
Background: Selective inhibitors of cyclooxygenase (COX)-2 are commonly used analgesics in various pain conditions. Although their actions are largely thought to be mediated by the blockade of prostaglandin (PG) biosynthesis, evidences suggesting endogenous opioid peptide link in spinal antinociception of COX inhibitor have been reported. We investigated the roles of opioid receptor subtypes in the spinal antinociception of selective COX-2 inhibitor. Methods: To examine the antinociception of a selective COX-2 inhibitor, DUP-697 was delivered through an intrathecal catheter, 10 minutes before the formalin test in male Sprague-Dawley rats. Then, the effect of intrathecal pretreatment with CTOP, naltrindole and GNTI, which are μ, δ and κ opioid receptor antagonist, respectively, on the analgesia induced by DUP-697 was assessed. Results: Intrathecal DUP-697 reduced the flinching response evoked by formalin injection during phase 1 and 2. Naltrindole and GNTI attenuated the antinociceptive effect of intrathecal DUP-697 during both phases of the formalin test. CTOP reversed the antinociception of DUP-697 during phase 2, but not during phase 1. Conclusions: Intrathecal DUP-697, a selective COX-2 inhibitor, effectively relieved inflammatory pain in rats. The δ and κ opioid receptors are involved in the activity of COX-2 inhibitor on the facilitated state as well as acute pain at the spinal level, whereas the μ opioid receptor is related only to facilitated pain. (Korean J Pain 2010; 23: 236-241)
Synthesis of Superconductor $YBa_{2}Cu_{4}O_{8}$ by Pyrolysis of EDTA Complex
Jeong Cheol-Mo,Mun Seung-Ho,Kang Cheol-Hwa,Lee Cheol-Eui,Yom Sang-Seop,Kim Keon Korean Chemical Society 1992 Bulletin of the Korean Chemical Society Vol.13 No.6
The superconducting $YBa_2Cu_4O_8$ was synthesized in oxygen condition at 1 atm. The starting material with 1 : 2 : 4 composition was obtained by pyrolysis of EDTA complex, which was converted to 1-2-3 phase during densification, followed by the 1-2-4 phase recovery at $810^{\circ}C$ . The phase presents were identified by XRD, TG, DTA and AC magnetic susceptibility. Our data indicated that considerable amounts of 1-2-4 phase formed but with the 1 : 2 : 3 phase or possibly 2-4-7 as visible. As the P($O_2$) increased with temperature, impurity peak, CuO ($2{\Theta}$ = 38.8), gradually decrease, and we conclude that the 1-2-4 phase is predominant bulk superconductor under the high oxygen pressure.
Jeong-Cheol Seo,Duk-In Jon,Se-Hoon Shim,Hyung-Mo Sung,Young Sup Woo,Jeongwan Hong,Sung-Yong Park,Jeong Seok Seo,Won-Myong Bahk 대한정신약물학회 2022 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.20 No.1
Objective: This study investigated the prevalence and comorbidities of attention deficit hyperactivity disorder (ADHD) among adults and children/adolescents in Korea. Methods: This study used data from the Korea Health Insurance Review and Assessment Service collected from 2008 to 2018. Study participants comprised patients with at least one diagnosis of ADHD (International Statistical Classification of Diseases and Related Health Provisions, 10th revision code F90.0). Prevalence rates and psychiatric comorbidities were also analyzed. Results: We identified 878,996 patients diagnosed with ADHD between 2008 and 2018. The overall prevalence rate of diagnosed ADHD increased steeply from 127.1/100,000 in 2008 to 192.9/100,000 in 2018; it increased 1.47 times in children/adolescents (≤ 18 years) and 10.1 times in adults (> 18 years) during this period. Among adult and children/ adolescent ADHD patients, 61.84% (95% confidence interval [95% CI] 61.74−61.93) and 78.72% (95% CI 78.53− 78.91) had at least one psychiatric comorbidity, respectively. Conclusion: Our results showed that the prevalence rate of diagnosed ADHD has increased in Korea; however, it is lower than the global average. Further studies are required to identify and treat vulnerable populations appropriately.
Choi, Cheol-Hun,Kim, Woong-Mo,Lee, Hyung-Gon,Jeong, Cheol-Won,Kim, Chang-Mo,Lee, Seong-Heon,Yoon, Myung-Ha The Korean Pain Society 2010 The Korean Journal of Pain Vol.23 No.4
Background: Selective inhibitors of cycloosygenase (COX)-2 are commonly used analgesics in various pain conditions. Although their actions are largely thought to be mediated by the blockade of prostaglandin (PG) biosynthesis, evidences suggesting endogenous opioid peptide link in spinal antinociception of COX inhibitor have been reported. We investigated the roles of opioid receptor subtypes in the spinal antionociception of selective COX-2 inhibitor. Methods: To examine the antionociception of a selective COX-2 inhibitor, DUP-697 was delivered through an intrathecal catheter, 10 minutes before the formalin test in male Sprague-Dawley rats. Then, the effect of intrathecal pretreatment with CTOP, naltrindole and GNTI, which are ${\mu}$, $\delta$, and k opioid receptor antagonist, respectively, on the analgesia induced by DUP-697 was assessed. Results: Intrathecal DUP-697 reduced the flinching response evoked by formalin injection during phase 1 and 2 Naltrindole and GNTI attenuated the antinociceptive effect of intrathecal DUP-697 during both phases of the formalin test, CTOP reversed the antinociception of DUP-697 during phase 2, but not during phase 1, Conclusions: Intrathecal DUP-697, a selective COX-2 inhibitor, effectively relieved inflammatory pain in rats. The $\delta$ and $\kappa$ opioid receptors are involved in the activity of COX-2 inhibitor on the facilitated state as well as acute pain at the spinal level, whereas the ${\mu}$ opioid receptor is related only to facilitated pain.
Kang Cheol-Hwa,Jeong Cheol-Mo,Yi Cheol-Woo,Kim Keon Korean Chemical Society 1994 Bulletin of the Korean Chemical Society Vol.15 No.1
The preparation of $YBa_2Cu_4O_8$ thick film on Ag substrate by electrophoretic deposition was directly studied. Electrophoretic deposition was carried out in solution, which was composed of presintered $YBa_2Cu_4O_8$ powder, sodium, and 2-propanol as a solvent. The deposited thick films were heat-treated in $O_2$ at 815$^{\circ}$C for 12 hours and at 450$^{\circ}$C for 12 hours. We succeeded in obtaining superconducting $YBa_2Cu_4O_8$ films on Ag substrate. Even though the chemical reactions at the $YBa_2Cu_4O_8$/Ag interface occurred in the range of 10 ${\mu}$m, superconductivity was not depressed. The thickness of the films was in the range of 60-80 ${\mu}$ m. The characteristics of the films were examined by electric resistance measurements, X-ray diffraction, and SEM observations.