Relationship between Stress Gene Polymorphisms and Litter Size by AI in Pigs

Jin, H.J.,Kim, I.C.,Wee, M.S.,Yeon, S.H.,Kim, C.D.,Lee, S.S.,Cho, C.Y.,Cho, S.R.,Son, D.S.,Park, C.K. 韓國受精卵移植學會 2007 한국동물생명공학회지 Vol.22 No.4

This study was performed to investigate the relationship between PSS-HSP70 gene polymorphism and artificial insemination (AI) reproductivity in the pigs. The RFLP polymorphism of PSS and the SSCP polymorphisms of HSP70 K1, K3 and K4 PCR product were detected different patterns. In the experiment for AI of fresh semen, spring and fall season showed higher litter size born of 10.89 head than 10.47 head of summer season. Landrace was showed higher litter size of 9.96 head than that of Duroc and Yorkshire (p<0.05). Stress relating PSS and HSP70 polymorphism of PSS-Normal, HSP70 K1-BB, K3-AB, K4-AA showd a highest litter size born of 10.97 head and litter size born alive of 10.69 head than that of the other polymorphisms(p<0.05). In the experiment for AI of frozen semen, effects of season and pig breeds were not showed for litter size born. The stress relating polymorphism of PSS-Carrier, HSP70 K1-BB, K3-BB, K4-AB showed highest litter size born of 11.29 head and litter size born alive of 10.82 head and PSS-Normal, HSP70 K1-BB, K3-AB, K4-AA showed the lowest litter size born of 8.48 head and litter size born alive of 7.33 head than that of the other polymorphisms(p<0.05). These results suggest that AI litter size born for the stress of forzen thawed semen may be affected by PSS and HSP70 polymorphism in pigs.

Relationship between Stress Gene Polymorphisms and Litter Size by AI in Pigs

H. J. Jin,I. C. Kim,M. S. Wee,S. H. Yeon,C. D. Kim,S. S. Lee,C. Y. Cho,S. R. Cho,D. S. Son,C. K. Park,Z. D. Li 사단법인 한국동물생명공학회 2007 한국동물생명공학회지 Vol.22 No.4

This study was performed to investigate the relationship between PSS-HSP70 gene polymorphism and artificial insemination (AI) reproductivity in the pigs. The RFLP polymorphism of PSS and the SSCP polymorphisms of HSP70 K1, K3 and K4 PCR product were detected different patterns. In the experiment for AI of fresh semen, spring and fall season showed higher litter size born of 10.89 head than 10.47 head of summer season. Landrace was showed higher litter size of 9.96 head than that of Duroc and Yorkshire(p<0.05). Stress relating PSS and HSP70 polymorphism of PSS-Normal, HSP70 K1-BB, K3-AB, K4-AA showd a highest litter size born of 10.97 head and litter size born alive of 10.69 head than that of the other polymorphisms(p<0.05). In the experiment for AI of frozen semen, effects of season and pig breeds were not showed for litter size born. The stress relating polymorphism of PSS-Carrier, HSP70 K1-BB, K3-BB, K4-AB showed highest litter size born of 11.29 head and litter size born alive of 10.82 head and PSS-Normal, HSP70 K1-BB, K3-AB, K4-AA showed the lowest litter size born of 8.48 head and litter size born alive of 7.33 head than that of the other polymorphisms(p<0.05). These results suggest that AI litter size born for the stress of forzen thawed semen may be affected by PSS and HSP70 polymorphism in pigs.

인공심장판막을 가진 외래 환자에서 Warfarin에 의한 과도한 INR 상승의 치료 현황 평가

박선영,정영미,이병구,손인자,서옥경 한국병원약사회 2002 병원약사회지 Vol.19 No.2

Patients taking long-term oral anticoagulant therapy with warfarin require close monitoring to maintain their coagulation values within therapeutic range. But little has been published about the incidence of bleeding during warfarin therapy in Korea. Moreover, data on how patients experiencing asymptomatic elevations of INR being treated are scarce. We evaluated the incidence of bleeding, the method of management in case of excessive anticoagulation and their outcome in SNCH. Patients with mechanical heart valves who were being followed at anticoagulation clinic in SNUH were included in the study if they had been on warfarin for at least 6 months and had been at least one episode of INR value greater than 5. Patients' data were evaluated retrospectively by reviewing medical records and anticoagulation flowsheets. Total of 173 episodes in 132 patients were included. One hundred fifty one cases were treated conservatively by holding warfarin temporariety whereas phytonadione or FFP was given in 22 cases. No difference in the bleeding rate was shown among treatment strategies. However, the treatment with phytonadione or FFP was 3 to 94 times more costly compared to conservative management. Based on the results of this study, phytonadione or FFP administration to asymptomatic patients with INR ranging from 5 to 10 may be unnecessary. A prospective, randomized trials would help confirming the safety and efficacy of conservative management compared to other treatment modalities and determining the INR range in which conservative management would be appropriate.

약(葯)배양 기법 이용한 이탈리안 라이그라스 식물체 생산

김기용,강경민,최기준,임용우,장요순,성병렬,손대영,이병현,조진기 Plant molecular biology and biotechnology research 2002 Plant molecular biology and biotechnology research Vol.2002 No.-

We obtained regenerated Italian ryegrass (Lolium multiflorum Lam.) plants by anther culture. When Italian ryegrass anther was incubated for 20 days on callus induction medium, MS medium containing 30 g/ℓ of NAA and 1 mg/ℓ of kinetin its callus was induced. The ratio of callus induction was 9.2 %, the mean of callus weight was 8.6 mg/callus/anther. When Italian ryegrass callus was incubated for 50 days on plant regeneration medium, MS medium containing 30 g/ℓ of sucrose, 1 mg/ℓ of NAA and 2 mg/ℓ of kinetin, Italian ryegrass plant was regenerated. The ratio of plant regeneration was 26%.

Effects of temperature on development, molting, and population growth of Yuukianura szeptyckii Deharveng & Weiner, 1984 (Collembola: Neanuridae)

Lee, Y.S.,Yang, N.H.,Son, J.,Kim, Y.,Park, K.H.,Cho, K. Elsevier Science B. V 2016 Applied soil ecology Vol.108 No.-

Neanuridae is one of the most diversified families of Collembola, but its biology and ecology are poorly understood. This is, to our knowledge, the first report on the biology of the neanurid species Yuukianura szeptyckii Deharveng & Weiner. Y. szeptyckii individuals were collected near a stream in Korea, and maintained on OECD artificial soil. This species showed a better reproductive performance on an artificial soil-based substrate than on charcoal-based substrate, and thus the soil-based substrate was used for investigating its biology. The sex ratio of Y. szeptyckii was found to be biased toward females (88.0%), and its mode of reproduction was sexual. The development, survival, longevity, reproduction, molting, and life table parameters of Y. szeptyckii were evaluated at 15, 20, 25, and 30<SUP>o</SUP>C. Individual growth was estimated by measuring head capsule widths. Mean developmental period from egg to adult decreased with increasing temperature from 73.7 d at 15<SUP>o</SUP>C to 25.6 d at 30<SUP>o</SUP>C. In the adult stage, ovipositional periods decreased with temperature from 273 d at 15<SUP>o</SUP>C to 45.5 d at 30<SUP>o</SUP>C, but senile periods increased at temperatures above 20<SUP>o</SUP>C. The developmental zero temperature was estimated to be 7.88<SUP>o</SUP>C. Median survival time (ST<SUB>50</SUB>s) and mean longevity decreased with temperature from 228d at 15<SUP>o</SUP>C to 98.0d at 30<SUP>o</SUP>C and from 401 d at 15<SUP>o</SUP>C to 177 d at 30<SUP>o</SUP>C, respectively. The maximum and minimum total number of eggs produced per individual were observed at 20<SUP>o</SUP>C (73.8 eggs) and 30<SUP>o</SUP>C (6.9 eggs), respectively. The head capsule width at first oviposition was significantly smaller at 25 and 30<SUP>o</SUP>C (0.30-0.31mm) than that at 15 and 20<SUP>o</SUP>C (0.45-0.46mm), while the head capsule width at last oviposition was smaller at 30<SUP>o</SUP>C (0.55mm) than that at 15 to 25<SUP>o</SUP>C (0.63-0.64mm). The molting rate (per individual per week) increased with temperature from 0.50 at 15<SUP>o</SUP>C to 1.43 at 30<SUP>o</SUP>C, but the total number of molts during the life span varied only slightly, ranging from 29.1 at 25<SUP>o</SUP>C to 33.2 at 30<SUP>o</SUP>C. The population reared at 20<SUP>o</SUP>C had the highest intrinsic rate of increase (0.060) and net reproductive rate (84.5), indicating that the optimal temperature for Y. szeptyckii population growth is 20<SUP>o</SUP>C. This study demonstrated that temperature can profoundly affect the development, molting, and population growth of Y. szeptyckii.

放射菌을 利用한 異種間 原形質體 融合과 그 融合體의 安定性에 관한 硏究(Ⅱ)

閔洪基,金昌珉,孫麗源,韓惠勝,崔英珠,丁大映,韓康玄,李相燮,李欽淑,元奉必 국립보건연구원 1992 국립보건원보 Vol.29 No.2

박막자기헤드의 집적공정 기술개발에 관한 연구

이석윤,허명수,손동수,황병철,조동율,천희곤,오태희,송병무,송한식,이우형,이광철,김오규,권영규,구경완 경북대학교 센서기술연구소 1995 센서技術學術大會論文集 Vol.6 No.1

The thin film growing processes and the photolithographic techniques involved in the manufacturing of thin film magnetic heads are discussed. The thin film heads are composed of the hundreds of electromagnetic transducers on a single wafer and are made of Al_(2)O_(3)-TiC substrate on which Al_(2)O_(3) film as a insulating, protective layer and gap material, Cu film as a multi-turn coil and permalloy film as a magnetic material are deposited and patterned. In this article we will introduce how the thin film heads is fabricated and differ from an integrated semiconductor device. An effort is devoted to develop the formation of PR frame using a lithography process and finally the thin film heads manufacturing technologies.

젖소의 초음파 유도 채란율에 대한 FSH 전처리 효과의 비교

이정규,최상용,박충생,이효종,조성근,공일근,박성재,강태영,최민철,최창용,손우진 경상대학교 축산진흥연구소 1997 畜産振興硏究所報 Vol.24 No.1

성장홀몬과 내분비계 질환

박창윤,최규옥,김기황,허갑범,유경자,이혜리,손희영 대한핵의학회 1979 핵의학 분자영상 Vol.13 No.1

1976년 1월부터 1979년 3월까지 연세대학교 부속 세브란스병원에 내원하여 뇌하수체 기능부전이 의심되어 성장홀몬의 분비능을 관찰하기 위해 L-Dopa 자극시험을 실행했던 35명과 L-Dopa 자극시험과 포도당 부가반응을 관찰하였던 4예의 달단비대증 환자를 연구 검토하여 다음과 같은 결과를 얻었다. 1) 각종 질환에서 성장홀몬의 기저치는 Sheehan씨 증후군에서는 평균치는 대조군보다 낮으나 통계적으로 유의한 차이는 없었고 당뇨병 환자에서도 평균치는 높으나 통계적으로 유의한 차이는 아니었다. 말단비대증 환자 4예 모두 대조군보다 현저한 증가를 보여주었다. 2) 당뇨병 환자 13명종 9명은 당뇨병성 망막증이 합병되었던 환자였고 이중 6명에서 L-Dopa 자극에 성장홀몬의 분비항진을 보여주었다. 망막증이 없었던 4명 중 1명에서만 분비 항진을 보여주었다. 3) Sheehan씨 증후군 10예중 L-Dopa에 분비항진을 보여준 경우는 2예였다. 4) 뇌하수체 혐염기성선종 8예중 L-Dopa 자극반응에 분비항진을 관찰한 수 있었던 것은 1예였다. 5) 4명의 말단비대증 환자중 3명은 호산성 선공이였고 1명은 혐염기성 선종이였다. 이중 3명에서 L-Dopa 자극시험을 행하였는데 1명은 그 측정치가 80 ng/ml 이상이어 반응 판정이 불가능했고 2명은 L-Dopa에 paradoxical response를 보여주었다. 포도당 부가검사를 시행한 2명 모두에서 포도당 투여후 억제반응을 보여주었다. 6) 두개인두종 2예중 1예에서 L-Dopa 자극반응을 보여주었 저신장(short statas)는 2예중 1예에서 L-Dopa 자극후 분비 항진을 보여주었다. This is an analysis of 39 patients studied at the Yonsei Medical Center from January, 1976 to March 1979. Of these 35 patient were suspected of having hypothalamic insufficiency and subjected to the L-Dopa stimulation test to observe growth hormone sceretory function while four acromegaly patient received the glucose loading test and L-Dopa stimulation test. The results are as follows: 1) The basal level of GH in the various disease was as follows: a) The basal level was lower than the control level but was not statisfically significant b) In diabetes the mean value tended to higher than the control level but was not significant statistically c) In all four acromegaly patients the GH level was significantly higher than the control level 2) Of 13 patients with diabetes, nine had diabetic retinopathy, and of those nine, six showed increased L-Dopa response. However, of the four non retinopathic DM patients, onl one showed increased response to L-Dopa. 3) Two patients out of ten with Sheehan's syndrome responded to L-Dopa stimulation. 4) One Patient of eight prith pituitary chromophobe adenoma responded to L-Dopa stimulation. 5) Four acromegaly patients revealed 3 acidophilic adenoma and one chromophobe adenoma histologically. Of patients receiving the L-Dopa stimulation test. Two showed a paradoxical response. Two patients who received the glucose loading test showed supressed response. 6) Of two craniopharyngioma patients, one showed increased GH response after L-Dopa stimulation. Increased response of GH after L-Dopa stimulation was seen in one two craniopharyngioma patients and also in one of two patients with short statasture.

High-Performance Blue InGaN Laser Diodes With Single-Quantum-Well Active Layers

Ryu, H.Y.,Haleem, K.H.,Lee, S.N.,Jang, T.,Son, J.K.,Paek, H.S.,Sung, Y.J.,Kim, H.K.,Kim, K.S.,O.H. Nam,Park, Y.J.,Shim, J.I. IEEE 2007 Photonics Technology Letters Vol.19 No.21

<P>The authors report on the high-performance blue laser diodes (LDs) with an emission wavelength of ~448 nm employing InGaN single-quantum-well (QW) active layers. At 100-mW continuous-wave (CW) output power, operation current and voltage are, respectively, 150 mA and 5.3 V, corresponding to the wall plug efficiency of >12%, a record value for the single-mode InGaN LDs with blue wavelengths. The single QW blue LD showed normal temperature dependence of light output-current curves with the characteristic temperature of 170 K. In addition, we demonstrate a high level of catastrophic optical damage of >300 mW and long device lifetime under CW operation condition at room temperature.</P>