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한우, 칡소 및 제주 흑우 Calpain-Calpastatin 유전자 다양성
이승환,김승창,조수현,최봉환,Aditi Sharma,임다정,당창권,장선식,김재환,고문석,양보석,강희설 충남대학교 농업과학연구소 2013 농업과학연구 Vol.40 No.2
The aim of study was to investigate genetic diversity for the calpain/calpastatin gene in three Hanwoo breeds [(Brown (n=62), Brindle (n=81) and Jeju Black (n=30)]. Random samples from three breeds of Hanwoo were selected and genotyped for the 7 SNPs of calpain/calpastatin using TaqMan method. Allele frequencies were investigated for CAPN1/CAST gene. Allele frequency of CAST2 SNP was 0.75, 0.59 and 0.22 for Brown, Brindle and Jeju black, respectively. The CAST3 revealed allele frequency of 0.59 and 0.57 in Brown and Jeju Black, while it showed very low allele frequency (0.07) in Brindle. In particular, favorable allele (G allele) for the CAPN1-2 SNP which was shown a strong association with tenderness in Taurine and Indicine cattle revealed 16% and 17% higher allele frequency in Brown Hanwoo (0.82) comparing Brindle (0.66) and Jeju Black Hanwoo (0.65). AMOVA demonstrated that among population variance occupied only 10% of total variance and among individual variance was 0%, while within individual variance was 90% of total variance. This result showed that population effect contributed very small portion of genetic to these three Hanwoo breeds, while within individual variance contributed large portion of genetic diversity within these Hanwoo breeds. In conclusion, three Hanwoo breeds (Brown, Brindle and Jeju black) showed a genetically homogeneous based on the 7 SNPs of CAPN1/CAST gene and it came from same ancestor to form modern Hanwoo breed.
Canine Distemper Virus 검출을 위한 정량 Real-time PCR
이승관,이창규,정운원,조경진,김현숙,강영대,서장훈 高麗大學校 倂設 保健大學 保健科學硏究所 2002 保健科學論集 Vol.28 No.2
Canine distemper virus(CDV) infection causes a fatal systemic disease in wide range of carnivore species, including domestic dogs. It has been a highly contagious disease of veterinary importance for centurise. Recently many researches show that qualitative RT-PCR for the detection of CDV was sensitive and specific method for the early and safe antemortem diagnosis of distemper by using whole blood regardless of clinical sign and pathological finding. Recently, results were correlated to clinical findings, anti-CDV neutralizing antibody titers, postmortem findings, and demonstration of CDV NP(nucleoprotein) antigen by immunohistochemistry. We have studied a quantitative real-time PCR assay for CDV in order to improve and broaden the clinical usefulness of RT-PCR assay. Total 37 samples including 9 clinically positive and 29 randomly selected ones have investigated. CDV RNA was extracted from whole blood. The isolated RNA was reverse-transcripted into cDNA followed by PCR amplification. The assay based on real-time PCR using SYBR Green I dye as quantitative method with a LightCycler. Calibration curves covered 30-3×10^(8) copies of CDV were created using cloned 240bp CDV cDNA of viral RNA. CDV was detected all in 8 positive samples whereas 8 in 29 randomly collected ones. The detection ranges of clinical CDV specimens were various from 3×10² to 3×10⁴ copies. Comparision of real-time PCR to conventional PCR showed equal sensitivity and specificity. But real-time PCR method has a merit of quantification as well as more rapid results than those of common RT-PCR. CDV can be accurately detected and quantified in the whole blood from the dog infected with CDV. This quantitative technique may improve the clinical utility of RT-PCR for the detection of CDV.
재래식 시장 지하 상인의 호흡기증상 및 폐기능 조사 연구
이승관,이창규,조경진,임현표,서장훈,최윤수 高麗大學校 倂設 保健大學 保健科學硏究所 1998 保健科學論集 Vol.24 No.1
The prevalence of respiratory symptoms and pulmonary function were studied in a group of 55 whole-sale market merchants Working in underground. As a control group, 55 whitecollar workers was also included in this study. Following results were obtained. A higher complaint for respiratory symptoms(cough, sputum, chest tightness, shortness of breath) was found among merchants than control workers. The measurement value for FVC, FEV1.0, FEV 1.0% in the merchants were reveal to lower figure in comparison with control groups. The measurement Value for MVV, PEF in the merchants were lower than control groups, but was not significant statistically. The pattern of pulmonary ventilation disturbance in the whole-sale market merchant were the same as followings : restrictive disturbance(6 person), abstrictive disturbance(1 person), and combined disturbance(1 person).
장성동,이은희,홍명엽,문성진,김주혁,이윤관,김영준 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.1
This study is purposed to analyse the effects of long-term & one-time 10km running exercise from bone metabolic marker change on bone metabolism. 7 male members(18.6±1.08) from a marathon club were subjected to the study. They were allowed to do long-term 10 km running training once a week for 6 months. And bone metabolism mark was determined according to the respective times : before/after 6 months training, before/after 10 km race, one day after the race, 3 days after the race. The examination items of bone metabolism mark were serum calcium, phosphorus, paratyroid hormone, osteocalcin, calcitonin, alkaline phosphatase in blood and calcium, phosphorus, deoxypyridinolin in urine. The results of study were as follows; 1) There was no change in deoxypyridinolin and alkaline phosphatase but there was significant change in calcitonin, paratyroid hormone and osteocalcin(p<.01). 2) There was no change of Calcium in serum and urine but there was significant change of phosphorus in blood(p<.01). To make a conclusion, it is determined that long-term 10 km running at low intensity and low frequency tends to restrict bone metabolism circulation, but exercise at a little high level activates bone metabolism into building up bones and absorbing bones and finally shows up high bone metabolism circulation, which is inferred to have an effective influence on bone health. It is considered there is a possibility that different exercise intensity, even same kind of exercise, influences on bone metabolism sdifferently.
Group B Streptococci 감염의 임상양상과 Pulsed-Field Gel Electrophoresis를 이용한 유전자형 분석
이승관,이창규,조경진,김상애,김재영,이국성 高麗大學校 倂設 保健大學 保健科學硏究所 2000 保健科學論集 Vol.26 No.1
Pulsed-field gel electrophoresis (PPGE) has been employed as a tool to study correlation between apparent clinical features and genotyping of Group B Streptococci (GBS) infection. The result of serotyping among 45 isolates showed that serotype la, lb, Ⅲ, Ⅳ, Ⅴ, NT (nontypeable) were 15.5%, 11.1%, 35.5%, 2.22%, 20%, 15.5%, respectively. The result of serotyping for infection group of 26 isolates showed that serotype la, lb, Ⅲ, Ⅳ, Ⅴ, NT were 11.5%, 15.4%, 34.6%, 3.8%, 11.5%, 23%, respectively. The result of serotyping for carrier group of 19 isolates showed that serotype la, lb, Ⅲ, Ⅴ, NT were 21%, 5.3%, 36.8%, 31.6%, 5.3%, respectively. Thus, the predominant serotypes of the infection groups were serotype lb and Ⅲ, and those of the carrier groups serotype Ⅲ and Ⅴ. All isolates were characterized by PFGE analysis. Isolates were assigned to three major phylogenetic Divisions (Ⅰ, Ⅱ, Ⅲ) and subsequently to 16 PFGE groups (A[A1, A2, A3], B[B1, B2, B3], C, D[D1. D2, D3, D4, D5, D6], E[E1, E2], F). Seventy five percentages of Division Ⅰ belonged to the infection group. Seventy eight percentages Division Ⅱ of belonged to the carrier group. One hundred percentages of Division Ⅲ belonged to the infection group. The study on the correlation between genotype and serotype among the isolates showed that serotype Ⅲ was predominant in A1 group (5 of 5 isolates), D1 group (4 of 5 isolates), and F group (2 of 2 isolates). In addition, serotype Ⅴ was the sole serotype in C and D5 group. Those results indicated that serotyping and PFGE group analysis were highly correlated.