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Minjung Kim,Hyun Ju Oh,Geon A Kim,Young Kwang Jo,Jin Choi,Byeong Chun Lee 한국발생생물학회 2013 한국발생생물학회 학술발표대회 Vol.2013 No.8
Cleft palates with or without cleft lip is one of the most common congenital craniofacial defects in dogs. It has been reported that monogenic autosomal recessive inheritance caused this defect in this species. However, here, we aimed to report cleft palate in a cloned dog. A fibroblast cell line was established from skin tissues of an eight-year-old German shepherd dog. Blood was collected from oocyte donor dogs, and serum progesterone concentration was measured by chemiluminescence enzyme immunoassay method. Ovulation was determined when serum progesterone results reached 5-10 ng/ml, and in vivo matured oocytes were collected surgically about 72 hr after ovulation. Donor cells were cultured with Dulbecco’s modified Eagle medium supplemented with 10% (v/v) fetal bovine serum until confluence. An in vivo matured oocyte was enucleated, and a donor cell was injected into the perivitelline space. The oocyte-cell couplet was electrically fused, and chemically activated. Reconstructed embryos were transferred to an oviduct of a recipient. Pregnancy diagnosis was performed 27 days after the embryo transfer, and ultrasonography of fetal heart beat, and rectal temperature and serum progesterone value of recipient was monitored until the day of delivery. Microsatellite analysis was performed using genomic DNA of cell donor, clones, and oocyte donors. As results, a total of 74 cloned embryos were transferred to five recipients, and one recipient diagnosed as pregnant with two fetuses by ultrasonography and radiology. Caesarean section was performed on day 58 after embryo transfer due to a decreased heart beat of a fetus, which was lower than 180. Two cloned puppies with 640g and 320g of birth weight were delivered safety, but the small one was born with a cleft palate. Microsatellite analysis results of both clones were identical with the cell donor. Cleft palate of the clone was surgically corrected on day 40 after birth. To our knowledge, there has been no report about cleft palate in cloned dogs, and also, no report about clones with different phenotype of cleft palate in dogs. Therefore, this study can give a clue of cleft palate in dogs, which might not be a genetic cause. Further studies about aberrant epigenetic reprogramming in those clones are needed.
Jo, Geon-A,Kwon, Sae-Bom,Kim, Na-Kyeong,Hossain, Muhammad Tofazzal,Kim, Yu-Ri,Kim, Eun-Young,Kong, In-Soo The Korean Society of Fisheries and Aquatic Scienc 2013 Fisheries and Aquatic Sciences Vol.16 No.4
Vibriosis caused by Vibrio anguillarum and edwardsiellosis caused by Edwardsiella tarda are septicemic diseases of many commercially important freshwater and marine fishes, and threaten the aquaculture industry in Korea. Early diagnosis and accurate identification of these two bacterial species could help to prevent these diseases and minimize the damage to cultured marine species. This study designed a duplex polymerase chain reaction (PCR) method for the simultaneous detection of two major fish pathogens: V. anguillarum and E. tarda. Each pair of oligonucleotide primers exclusively amplified the target groEL gene of the specific microorganism. Twenty-two Vibrio and ten non-Vibrio enteric species were used to check the specificity of the primers, which were found to be highly specific for the target species, even among closely related species. The detection limit was 400 pg for V. anguillarum and 4 ng for E. tarda when mixed purified DNA was used as the template. This assay showed high specificity and sensitivity in the simultaneous detection of V. anguillarum and E. tarda from artificially inoculated seawater and fish.
( Geon A Jo ),( Sae Bom Kwon ),( Na Kyeong Kim ),( Muhammad Tofazzal Hossain ),( Yu Ri Kim ),( Eun Young Kim ),( In Soo Kong ) 한국수산과학회(구 한국수산학회) 2013 Fisheries and Aquatic Sciences Vol.16 No.4
Vibriosis caused by Vibrio anguillarum and edwardsiellosis caused by Edwardsiella tarda are septicemic diseases of many commercially important freshwater and marine fishes, and threaten the aquaculture industry in Korea. Early diagnosis and accurateidentification of these two bacterial species could help to prevent these diseases and minimize the damage to cultured marine species. This study designed a duplex polymerase chain reaction (PCR) method for the simultaneous detection of two major fishpathogens: V. anguillarum and E. tarda. Each pair of oligonucleotide primers exclusively amplified the target groEL gene of the specific microorganism. Twenty-two Vibrio and ten non-Vibrio enteric species were used to check the specificity of the primers,which were found to be highly specific for the target species, even among closely related species. The detection limit was 400 pg for V. anguillarum and 4 ng for E. tarda when mixed purified DNA was used as the template. This assay showed high specificity and sensitivity in the simultaneous detection of V. anguillarum and E. tarda from artificially inoculated seawater and fish.
CHOI, Yoo Bin,KIM, Geon A,OH, Hyun Ju,KIM, Min Jung,JO, Young Kwang,SETYAWAN, Erif Maha Nugraha,LEE, Seok Hee,LEE, Byeong Chun The Japanese Society of Veterinary Science 2016 The Journal of veterinary medical science Vol.78 No.2
<P>Somatic cell nuclear transfer is a useful tool to maintain genetic information of animals. The Gyeongju Donggyeong dog is a breed registered as natural monument in Korea. The unique feature of the Donggyeong dog is its tail, as the Donggyeong dog can be classified as either short tailed or tailless. The aim of this study was to preserve the Donggyeong dog’s unique feature by cloning. Fibroblasts were obtained from a short-tailed Donggyeong dog. <I>In vivo</I> matured oocytes were enucleated, microinjected with a donor cell and fused electrically. Reconstructed embryos were transferred to six recipient dogs. One surrogate became pregnant, and one short-tailed Donggyeong dog was delivered. This study demonstrated that the phenotype of the Donggyeong dog could be conserved by somatic cell nuclear transfer.</P>
Joon Ho Moon,Dae Young Yoo,Young Kwang Jo,Geon A Kim,Hyo Young Jung,Jung Hoon Choi,In Koo Hwang,Goo Jang 한국실험동물학회 2014 Laboratory Animal Research Vol.30 No.4
Cryptorchidism is one of the most common genital defects in dogs. This study investigated the effects of abdominal cryptorchidism on morphology, cell proliferation, and Sertoli cell condition in a dog with spontaneous unilateral cryptorchidism. Elective orchidectomy was performed on the abdominal right testis and the scrotal left testis. Significant reductions in numbers of spermatogonia, spermatocytes, and spermatids were observed in hematoxylin and eosin stained sections of the cryptorchid testis. The size of the epididymal duct was smaller than that of the control testis. Based on Ki67 immunohistochemistry, the proliferative activity of spermatogonia and spermatocytes was significantly decreased in the cryptorchid testis. However, proliferative activity was increased in the epididymal duct. Based on GATA-4 immunohistochemistry, Sertoli cells were relatively resistant to cryptorchidism, and the proliferative activity of Sertoli cells was markedly increased in the cryptorchid testis than in the control testis. These results suggest that spontaneous unilateral cryptorchidism causes morphological defects in spermatogonia and spermatocytes in the testis and changes the size of the efferent ductule of the epididymis. In addition, spontaneous unilateral cryptorchidism increases proliferative activity of Sertoli cells, which may be a predisposing factor for Sertoli cell cancer in cryptorchid testes.
MVCT를 이용한 치료 간(Interfraction) 그리고 치료 중(Intrafraction) 내부 장기 변화 분석
정원석,김주호,김영재,신령미,오정훈,정건아,조준영,김기철,최태규,Jung, Won Seok,Kim, Ju Ho,Kim, Young Jae,Shin, Ryung Mi,Oh, Jeong Hun,Jeong, Geon A,Jo, Jun Young,Kim, Gi Chul,Choi, Tae Kyu 대한방사선치료학회 2014 대한방사선치료학회지 Vol.26 No.1
목 적 : 다양한 치료 부위에 따라 MVCT(Megavoltage computed tomography)를 이용하여 치료 중(Intrafraction), 치료 간(Interfraction)의 장기 위치 변화를 측정하여 평가하고자 한다. 대상 및 방법 : 본 연구에서 두 경부(Head & neck), 흉부(Thorax), 간(Liver), 전립선(Prostate) 종양을 가진 48명 환자들은 전체 치료 과정동안 다양한 MVCT scan을 시행하였다. 평균 환자 당 60개의 MVCT 영상을 획득하여 분석하였다. 결 과 : 치료 간(Interfraction)오차는 흉부와 복부 그리고 골반이 종 방향(Longitudinal, Y)에서 3 mm 이상의 차이를 보였다. 치료 중(Intrafraction) 변화를 알아보기 위해 치료가 끝난 후에 MVCT를 찍어 확인한 후 치료 중(Intrafraction) 움직임 차이는 종 방향에서 2 mm 내외로 나타났다. 또한 치료 전과 후의 움직임의 변화로 인해 치료 간 그리고 치료 중의 차이를 확인하였다. 결 론 : 본 연구에서도 두 경부(Head & neck), 흉부(Thorax), 간(Liver), 전립선암(Prostate cancer) 환자들의 치료 간(Interfraction) 변화와 치료 중(Intrafraction)변화를 통해 적절한 고정 기구와 표적 여백의 윤곽을 완성하는데 도움이 될 거라 사료된다. Purpose : Depending on a variety of therapeutic areas using MVCT(Megavoltage computed tomography) intra-and interfraction is to evaluate changes in patient position. Materials and Methods : In this study, head and neck, thorax, liver, and prostate tumor patients, 48 people with a full course of treatment for patients with various MVCT scan was performed. Average 60 per patient MVCT images were acquired and analyzed. Results : Interfraction error thorax and abdomen, and pelvis in the longitudinal difference was more than 3 mm. Intrafraction to see a change after the end of treatment MVCT taken, and the results confirmed Intrafraction 2 mm in motion around the longitudinal difference. In addition, due to changes in the movement before and after treatment, Inter-and Intrafraction difference was found. Conclusion : In the present study, the Head and Neck, Thorax, liver, prostate cancer in patients with inter-and intrafraction changes and target the appropriate fixtures to complete the outline of the margin would be helpful is considered.
Kim, Geon A.,Jin, Jun-Xue,Lee, Sanghoon,Taweechaipaisankul, Anukul,Oh, Hyun Ju,Hwang, Joing-Ik,Ahn, Curie,Saadeldin, Islam M.,Lee, Byeong Chun Hindawi 2017 BioMed research international Vol.2017 No.-
<P>Soluble human tumor necrosis factor (shTNFRI-Fc) and human heme oxygenase 1 (hHO-1) are key regulators for protection against oxidative and inflammatory injury for xenotransplantation. Somatic cells with more than 10 copy numbers of shTNFRI-Fc and hHO-1 were employed in somatic cell nuclear transfer to generate cloned pigs, thereby resulting in seven cloned piglets. However, produced piglets were all dead within 24 hours after birth. Obviously, postnatal death with liver apoptosis was reported in the higher copy number of shTNFRI-Fc and hHO-1 piglets. In liver, the transcript levels of ferritin heavy chain, light chain, transferrin, and inducible nitric oxide synthase were significantly highly expressed compared to those of lower copy number of shTNFRI-Fc and hHO-1 piglets (<I>P</I> < 0.05). Also, H<SUB>2</SUB>O<SUB>2</SUB> contents were increased, and superoxide dismutase was significantly lower in the higher copy number of shTNFRI-Fc and hHO-1 piglets (<I>P</I> < 0.05). These results indicate that TNFRI-Fc and hHO-1 overexpression may apparently induce free iron in the liver and exert oxidative stress by enhancing reactive oxygen species production and block normal postneonatal liver metabolism. </P>