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Ah Rang Cho(조아랑),Jin Kyung Park(박진경),Jong Woo Kim(김종우),Ji Young Song(송지영),Joo Ho Chung(정주호),Geon Ho Bahn(반건호) 대한생물치료정신의학회 2007 생물치료정신의학 Vol.13 No.1
목적 : Dopamine beta-hydroxylase(DBH) 유전자는 정신병적 증상과 관련하여 정신분열병의 후보유전자 중의 하나이다. 본 연구는 DBH 유전자 내 새로운 단일염기다형성의 유전자형을 확인하고 정신분열병과의 유전적 연관성을 알아보고자 하였다. 연구대상 및 방법 : DSM-Ⅳ에 의해 정신분열병으로 진단된 입원환자 89명과 정신질환의 과거력과 가족력이 없는 대조군 109명을 대상으로 하였다. DBH 유전자의 네 번째 엑손 부위를 다중효소중합연쇄반응(Polymerase Chain Reaction, PCR)으로 증폭하여 DNA sequencing 기법으로 유전자형을 확인하고 연관성을 알아보기 위한 통계 분석을 시행하였다. 결과 : DBH 유전자 내 4개의 단일염기다형성(DBH5818G/A, DBH5990G/A, DBH6153C/T, DBH6259A/G)을 확인하였다. 이 4개의 단일염기다형성 모두에서 정신분열병 환자군과 정상 대조군 간 유전자형 분포와 대립유전자 빈도 및 일배체형 빈도에서의 유의한 차이는 없었다. DBH와의 관련성이 보고된 양성 정신병적 증상이 두드러지는 편집형 정신분열병 환자군과 정상 대조군 간 일배체형 빈도에서도 유의한 차이는 보이지 않았다. 결론 : DBH5818G/A, DBH5990G/A, DBH6153C/T, 그리고 DBH6259A/G 다형성은 한국 정신분열병 환자군과 유전적 관련성이 없을 것으로 추정된다.
두 가지 단계적 접근법을 이용한 30종 화학물질의 안자극성 평가
전혜련 ( Hye Lyun Jeon ),조아랑 ( Ah Rang Cho ),고경육 ( Kyung Yuk Ko ),김주환 ( Joohwan Kim ),정미경 ( Mi Kyung Jeong ),박교현 ( Kyo-hyun Park ),김배환 ( Bae-hwan Kim ),오원준 ( Won Jun Oh ),이종권 ( Jong Kwon Lee ),박기숙 ( Ki S 한국동물실험대체법학회 2020 동물실험대체법학회지 Vol.14 No.1
Various alternative test methods are being developed to replace in vivo Draize rabbit test that evaluates eye irritation. However, a single alternative method has difficulty to be applied in safety evaluation on substances, because it cannot fully replace the in vivo test by simulating only part of the in vivo system. For this reason, different studies using several alternative test methods and test results of literatures have been under way. Our previous study suggested effective tiered approaches using three tests among Short Time Exposure (STE), Bovine Corneal Opacity and Permeability (BCOP), Hen’s Egg Test-Chorioallantoic Membrane (HET-CAM), re-constructed human cornea epitheliums (RhCE) tests. This study aimed to evaluate eye irritation potential for 30 new test chemicals using two tiered approaches. According to the data generated by direct test performance and literature survey, the accuracy, sensitivity and specificity of the two tiered approaches were 83.3%∼86.7%, 93.3%, 73.3%∼ 80%, respectively. Furthermore, the accuracy, sensitivity, and specificity of the two tiered approaches by applying combined data against 30 test chemicals in our present study and 47 test chemicals in previous study were 90.9%∼92.2%, 95.9%∼98.0%, 78.6%∼85.7%. Consequently, the two tiered approaches may be used to identify between irritants and non-irritants to replace in vivo test.
Estrogen Receptor 1 유전자 내 2개의 단일염기 다형성과 한국인 여성 정신분열병 환자의 연합에 관한 연구
박진경,이서경,이상민,박준헌,김지영,조아랑,Park, Jin Kyung,Lee, Seo Kyong,Lee, Sang Min,Park, Jun Heon,Kim, Ji Yeong,Cho, Ah Rang 대한생물정신의학회 2007 생물정신의학 Vol.14 No.4
Objectives : Schizophrenia is equally distributed in both sexes. However, later-onset, milder psychopathology, and better outcome are associated with the females. This reason is thought to be partly due to the estrogen system. Recently, it was suggested that estrogen receptor 1(ESR1) gene polymorphisms might affect the expression of ESR1 and were associated with several psychiatric disorders. Thus, we investigated the association between two single nucleotide polymorphisms(SNPs) in the ESR1 gene and Korean schizophrenic patients in this study. Methods : Genotype, allele, and haplotype frequencies of the two SNPs(rs 2234693 and rs 2228480) were analyzed between 218 Korean controls and 158 Korean schizophrenic patients. Also, age of onset and negative symptom scale scores according to genotypes were analyzed in the patients with schizophrenia. Results : There was a significant difference in allele frequencies of rs 2234693 between the schizophrenic patients and the controls(p=0.03). Genotype distributions(p=0.03) and allele frequencies(p=0.01) of rs 2234693 were significantly different between the female schizophrenic patients and the female controls. The frequency of TC-CC genotypes compared with TT genotype in the female schizophrenic patients was significantly higher than that in the female controls(OR=2.36). The mean age of onset in the schizophrenic patients with TC-CC genotypes was significantly lower than that in the patients with TT genotype. The frequency of rs 2234693C- rs 2228480G haplotype in the female schizophrenic patients was relatively higher than that in the female controls. Conclusions : These results of our study support the possibility that the ESR1 gene polymorphisms might be involved in the susceptibility of females to schizophrenia and play a role in sex difference of schizophrenia.