Abstract:
PURPOSE: Extract from STAPF showing excellent effect in the HBV medicine field is provided, which has lower toxicity than any other existing compounds, so the extract from STAPF can be used as a safe and effective medicine for hepatitis B. CONSTITUTION: Extract from STAPF is gained from stems of STAPF. The extracting process comprises of: drying the stems thoroughly at place being well ventilated, or sunning the stems after drying till 60% dried state at place being well ventilated; adding 1L of water per 100g of dried STAPF; heating and gyrating for 2-3hrs at 100°C; extracting only 1 time. Dried powder type of the extract after freeze-drying, and water-soluble part of the extract by centrifuging after dissolving the dried powder are also used as an effective ingredient in the medicine for hepatitis B.
Abstract:
PURPOSE: A method for predicting drug response to celecoxib using the genotype of cytochrome p450 2C9 (CYP2C9) gene is provided to analyze the genotype of CYP2C9 gene for predicting drug response to celecoxib and to present a proposal on drug approvals in consideration of Korean pharmacogenomics. CONSTITUTION: A method for analyzing the genotype of CYP2C9 gene for predicting drug response to celecoxib comprises the steps of: acquiring exon 2 and exon 7 of a gene encoding CYP2C9 from genomic DNA and sequencing exon 2 and exon 7; detecting single nucleotide polymorphisms (SNPs) in each determined base sequence, wherein 101^th base (T) of sequence number 1 (exon 2) in CYP2C9 is substituted with C (CYP2C9*13) and 114^th base (A) of sequence number 2 (exon 7) in CYP2C9 is substituted with C (CYP2C9*3); and determining if the genotype of CYP2C9 belongs to the extensive metabolizer (EM) group or intermediate metabolizer (IM) group using the detected SNP. A method for predicting drug response to celecoxib by each CYP2C9 genotype comprises the steps of: orally administering 120-250 mg of celecoxib to each of the EM group and the IM group; and comparing the area under the concentration-time curve (AUC) by each genotype and computing a dosage of celecoxib by each genotype. [Reference numerals] (AA) Elapse time after injecting (hr)
Abstract:
본 발명은 시토크롬 P450 2C19(CYP2C19)를 암호화하는 유전자의 일배체형 분석방법, 분석키트 및 이를 이용한 CYP2C19 효소의 활성예측방법에 관한 것이다. 좀 더 구체적으로, 본 발명은 한국인의 CYP2C19 유전자에 위치한 기존에 알려진 단일염기다형성(SNP)에 더하여 신규의 SNP를 추가 발굴하여, 특정 일배체형(Haplotype) 정보를 확보하였는 바, 이 일배체형을 분석할 수 있는 프라이머를 이용한 일배체형 분석방법, 분석키트 및 이를 이용하여 CYP2C19 효소의 활성을 예측하는 방법에 관한 것이다. 본 발명에 의하면, 란소프라졸 대사에 관여하는 CYP2C19의 약물대사효소 활성 지표로서 일배체형을 제공할 수 있으며, 유사약물의 약동 및 약력학적 특성을 파악함으로써 CYP2C19에 의해 대사되는 의약품의 평가 및 가교시험에 대한 지표로서 활용할 수 있다.
Abstract:
PURPOSE: An analysis kit for haplotypes of a UGT1A1 gene promoter is provided to predict the expression level of the UGT1A1 gene and to develop drugs. CONSTITUTION: A method for analyzing haplotypes of the human UGT1A1 gene comprises: a step of performing PCR using a human UGT1A1 gene promoter or fragment thereof; a step of analyzing the base sequence of a DNA product; and a step of determining the presence of an SNP of -1352 A>C(3676th base of sequence number 8) and -997 G>A(4031th base of sequence number 8).
Abstract:
PURPOSE: A method for predicting drug response to omeprazole using the genotype of cytochrome p450 2C19 (CYP2C19) gene is provided to analyze the genotype of CYP2C19 gene for predicting drug response to omeprazole and to present a proposal on drug approvals in consideration of Korean pharmacogenomics. CONSTITUTION: A method for analyzing the genotype of CYP2C19 gene for predicting drug response to omeprazole comprises the steps of: acquiring exon 4 and exon 5 of a gene encoding CYP2C19 from genomic DNA and determining each base sequence; detecting single nucleotide polymorphisms (SNPs) of each base sequence, wherein 39th base (G) of sequence number 1 (exon 5) is substituted with A (CYP2C19*2) and 155th base (G) of sequence number 2 (exon 4) is substituted with A (CYP2C19*3); and determining if the genotype of CYP2C19 belongs to extensive metabolizer (EM) group, intermediate metabolizer (IM) group, or poor metabolizer (PM) group using the detected SNP. A method for predicting drug response to omeprazole by each CYP2C19 genotype comprises the steps of: orally administering 20-80 mg of omeprazole to each of the EM, IM, and PM groups; and comparing the area under the concentration-time curve (AUC) by each genotype and computing a dosage of omeprazole by each genotype. [Reference numerals] (AA) Omeprazole (ng/mL); (BB) Elapse time after injecting (hr)
Abstract:
PURPOSE: A method of analyzing a CYP2C19 genotype for predicting the effect of lansoprazole is provided to supply a haplotype as a drug-metabolizing enzyme activity index of CYP2C19 engaging in a lansoprazole metabolism and be used as an index about the evaluation of medical supplies metabolized by the CYP2C19 and a cross linkage test by grasping the pharmacokinetics characteristic of equivalent drugs. CONSTITUTION: A method of predicting the lansoprazole metabolic activation of a CYP2C19 protein comprises: a step of determining the each base sequence of the promoter of a gene ciphering cytochrome P450 2C19 (CYP2C19) from genomic DNA, exon 4, exon 5, intron 5 and intron 7; a step of detecting the presence of single nucleotide polymorphism (SNP) in the determined each base sequence; a step of identifying the CYP2C19 gene of experimentee with one among haplotype H1-H3 by using the detected SNP; a step of determining whether the identified haplotype belongs to a haplotype combination group consisting of extensive metabolizer (EM), hetero extensive metabolizer (hetero EM) and poor metabolizer (PM) by assembling the identified haplotype with base pairs; and a step of predicting the lansoprazole metabolic activation of the CYP2C19 protein by using the confirmed haplotype combination group. The lansoprazole metabolic activity is the highest when the haplotype combination group belongs to the EM and is lowest when the haplotype combination group belongs to the PM.
Abstract:
본 발명은 한국인을 대상으로 UGT1A1를 암호화하는 유전자의 프로모터 부위내에 위치한 단일염기다형성(SNP)로부터 특정 일배체형(Haplotype)을 결정하였으며, 이 특정 일배체형(Haplotype)을 분석할 수 있는 상기 유전자 프로모터의 증폭용 프라이머를 포함하는 UGT1A1 유전자 프로모터의 일배체형의 분석키트 및 이를 이용한 분석방법에 관한 것이다. 본 발명에 따른 분석키트 및 분석 방법을 이용하면, UGT1A1 유전자의 발현 정도를 예측할 수 있으며, 또한, 이에 따라 개인간 유전형의 차이에 따른 맞춤의약을 포함하여 UGT1A1에 의하여 대사되는 약물의 개발에 널리 활용할 수 있다.