선택적 남성 호르몬 분비 부신피질 종양 1예

김동수,박정수,이상주,이병석,박기현,박찬규,허갑범,이현철,이관우,김미림,이명래 대한내분비학회 1989 Endocrinology and metabolism Vol.4 No.2

裁培方法이 벼 倒伏에 미치는 影響

李相哲,에스 케이 디 다타아 慶北大學校 農業科學技術硏究所 1989 慶北大農學誌 Vol.7 No.-

수도 주요 품종들의 재배방식에 따른 도복 양상과 형질의 차이를 구명하기 위해 내도복성품종 IR8과 IR64중간정도의 내도복성을 나타내는 IR36 그리고 도복성품종인 IR21820-154-3-2-2-3를 공시하여 각 품종간에 도복을 유발시키는 형질간의 비교와 식물체의 구성성분을 조사하였던 바, 그 결과를 요약하면 다음과 같다. IR8을 제외하고는 공시된 모든 품종은 손이양재배가 산파재배한 것보다 도복저항상이 크게 타나났으며 수량에 있어서도 대체로 손이양재배에서 높게 나타났다. 산파재배에 있어서 도복에 의한 수량손실은 손이앙에 비하여 0.6톤에서 1.5톤으로 품종에 따라 각각 수량이 감소되었다. 그러나 재배방식에 따른 수도의 생육변이와 수량구성요소는 차이를 보이지 않았으며 줄기내의 칼륨함량은 손이앙재배가 산파재배 보다는 높게 나타났는데 이것이 도복의 저항성을 증대 시킨 것으로 사료된다. 한편 인산이나 규산의 함량은 줄기의 강도를 증대시키는데 아무런 영향도 미치지 못하였다. This experiment was conducted at the IRRI experimental fram, Los Banos, Philippines to determine the effects of planting methods on lodging in rice, and to determine plant characteristics that induce lodging. Moderately lodging-susceptible IR36, lodging-susceptible line IR21820-3-2-2-3 and lodging-resistant IR8 and IR64 were tested. Except in IR8, lodging resistance of all test rices was higher when transplanted than when broadcast-seeded. Transplanted rices yielded higher than did broadcast-seeded rices except with broadcast-seeded IR8. Yield reduction due to lodging varied from 0.6 to 1.5 t/ha. Yield components and vegetative characteristics did not differ significantly between planting methods. However, higher culm K content was observed in transplanted rice, and it consequently increased lodging resistance. Phosphorus and Si comtents did not significantly affect culm strength.

난소과자극 증후군 1예

이병석,박기현,박찬규,허갑범,이현철,임승길,조용욱,김유곤 대한내분비학회 1988 Endocrinology and metabolism Vol.3 No.2

Ovarian hyperstimulation syndrome (OHS) is a rare complication in the use of human menopausal gonadotropin (HMG) and human chorionic gonadotropin (HCG) for ovulation induction. The pathophysiology is unclear and treatments are mainly conservative. We presented a case of ovulation induction with HMG and HCG in secondary amenorrhea due to hypogonadotropic hypogonadism after brain surgery for craniopharyngeoma with abscess formation. A brief review on the literatures was made in comment.

안면골 골절에 대한 임상적 고찰

신극선,이영호,김규호,김진철 大韓成形外科學會 1977 Archives of Plastic Surgery Vol.4 No.2

The facial bones are composed of several protuberance and arches(orbital rim, nasal pyramid, zygomatic arch and maxilla) and are apt to be damaged by the accidents. According to the intellectual development of the human, the social life is constantly complicated more than ever. The means of transportation has been increasing in scale and size, consequently the automobile accidents has also increasing the same as the transportation has been. Moreover the means of transportation has been expressed as the moving weapon which became very serious problem. Braunstein(1957), in a study of 1000 automobile accidents, reported that the head and face area were involved in 72.3% and that 7.2% of these also sustained fracture of one or more facial bones. The accurate diagnosis and treatment of the facial injurie swere always very important, but the interest of this field was very weakened. During recent years, numerous articles have documented the steady increase in the incidence of facial bone fracture which have been observed within the framework of our mobile and violent society. Authors reviewed and evaluated clinical patterns and proper management of facial bone fracture patients who were admitted and treated in Yonsei Medical Center from March, 1, 1973 to Setember 30, 1977. There were 245 cases of facial bone fractures in that period. The following results were obtained. 1. Monthly incidence of facial bone fracture showed 32 cases in May at the most and at the least in January 15 cases. 2. During this period, a total of 245 patients with fractures of the facial bones were admitted to the hospital. The sex incidence revealed 206 patients(84.1%) in male and 39 patients (15.8%) in female. The great incidence of the fracture occurred in the age of between 10 to 40 years. 3. Traffic accidents ranked the top as the cause of facial bone fracture. 4. Mandibular fractures were most common facial bone fracture(33.5%) during that period. 37 patients had multiple facial bone fractures. 5. Associated bracture is as follow in order of frequency. 1) Skull; 22 cases. 2) Upper extremities; 21 cases. 3) Lower extremities; 19 cases. 6. Soft tissue injury is as follow order of frequency. 1) Facial and peripheral laceration; 74 cases. 2) Severe skin abrasion and contusion, central; 5 cases. 3) Eye injury; 5 cases. 7. Life threatening associated injury as follow in order of frequency. 1) Cerebral contusion; 33 cases. 2) Airway obstruction; 8 cases. 3) Hemo-pneumothorax; 6 cases. 8. Almost 50% of the cases were treated within 48 hours after injury. 18(7.3%) patients were treated conservatively. 9. Closed reduction alone was done for 81(33.1%) cases of our patients, while 37(15.1%) done open reduction. 10. Complications are as follows. 1) Fever; 7 cases. 2) Local infection; 6 cases. 3) Pulmonary; 4 cases. 4) Death; 4 cases. Three out of four cases died from severe head injury and one case secondary to in traabdominal viscus rupture.

포상기태와 융모상피암 환자의 갑상선기능

박기현,김현만,허갑범,이현철,김경래,김한수,김주항,김세광 대한내분비학회 1988 Endocrinology and metabolism Vol.3 No.1

It has been recognized that hyperthyroidism occur in patients with trophoblastic disease, either hydatidiform moles or choriocarcinomas. In the past decade, several lines of evidence have shown that human chorionic gonadotropin, secreted by the trophoblastic disease, is a thyroid stimulator and causes hyperthyroidism. In order to evaluate the relationship between level of thyroid hormone and human chorionic gonadotropin in patients with trophoblastic disease, level of thyroid hormone, serum -HCG and amount of urinary excretion of HCG were measured and analyzed in 24 patients with hydatidiform mole and 11 patients with choriocarcinoma who were admitted to Yonsei University Severance Hospital during the period from January 1981 to December 1986. The results are summarzed as follows: 1) Hyperthyroidism was observed in 33.3% of the patients with hydatidiform mole and in 18.2% of the patients with choriocarcinoma. 2) The amount of 24 hour urinary excretion of HCG in patients with hyperthyroidism was more than that in euthroid patients. 3) There was no difference in the level of thyroid hormone, serum -HCG, and amount of 24 hour urinary excretion of HCG in patients with hydatidifrom mole and choriocarcinoma. 4) The amount of 24 hour urinary excretion of HCG had significant correlation with FT4, whereas no similar correlation was observed between the levels of thyroid hormone and serum -HCG. In conclusion, the occurrence of hyperthyroidism is closely related with the amount of urinary excretion of HCG in patients with trophblastic disease.

Influence of continental outflow events on the aerosol composition at Cheju Island,South Korea

Park, John K.,Arimoto, Richard,Savoie, Dennis,Carmichael, Gregory R,Prospero, Joseph,Hong, Min-Sun,Ueda, Hiromasa,Murano, Kentaro,Chen, Li-Ling,Kim, Y. P.,Shim, Shang,Lee, Ho-geun,Song, Chul H.,Kang, 濟州大學校 基礎科學硏究所 1998 基礎科學硏究 Vol.11 No.1

The chemical composition of aerosols measured at Cheju Island, Korea, over the 3-year period March 1992 to February 1995 are presented and discussed, with a particular emphasis on the Pacific Exploratory Mission in the Western Pacific (PEM-West B) time period. Cheju Island is under the influence of continental outflow conditions nearly 70% of the year, and as a result the aerosol loading of sea salt as well as continental aerosol components is high. The 3-year mean values derived from the daily tape filters are non-sea-salt (nss) SO₄²?=6.8㎍/㎥, NO₃?=1.2㎍/㎥, Cl??=1.9㎍/㎥, Na+=1.7㎍/㎥, Ca²?=0.5㎍/㎥, NH₄?=1.3㎍/㎥, Mg²?=0.3㎍/㎥, and K+=0.4㎍/㎥. Sea-salt components show peak values in winter, while calcium, nitrate, potassium, and to a lesser extent, sulfate and ammonium, show higher values in the spring, and all species exhibit a pronounced minimum in summer. Trajectory and principal component analysis show that elevated levels of primary aerosols (both sea salt and soil-derived) occur with strong wind conditions associated with winter and spring, and high concentrations of non-sea-salt components are most strongly associated with springtime continental outflow events. During the PEM-West B period, nitrate and calcium are found to be ∼60% higher than the annual mean, sea-salt components ∼30% higher, and sulfate ∼10% higher. The aerosol data are combined with gaseous SO₂ concentrations, precipitation chemistry data and companion aerosol measurements taken at the same site, to provide further insights into the aerosol composition at Cheju. At Cheju, sulfate and ammonium are found mostly in the fine fraction (∼80 to 90%), while calcium and nitrate reside in the coarse size fraction. sulfate and nitrate are not associated with the primary aerosols, but rather become associated with the aerosol during the long-range transport process.

Structural, luminescent, and electronic properties of ASnO3 (A = Ca, Sr, and Ba) with doping of Eu, Dy, and Er ions

Lee K.C.,Jeong M.J.,Wi S.W.,Choi Min Chul,Park Se Young,Naqvi Furqanul Hassan,Ko Jae-Hyeon,Lee Y.S. 한국물리학회 2023 Current Applied Physics Vol.56 No.-

This study investigated the structural and luminescent properties of rare earth (RE) ion (RE = Eu3+, Dy3+, and Er3+)-doped ASnO3 (ASnO3:RE), where A = Ca, Sr, and Ba. X-ray diffraction and Rietveld refinement analyses revealed that the lattice structures for A = Ca, Sr, and Ba were orthorhombic, pseudo-cubic, and cubic, respectively. As for the luminescent properties, the emission characteristic of each RE ion was clearly identified in our samples. Interestingly, it was commonly observed for all three RE ions that the emission intensities of the three RE ions were strongest and weakest in CaSnO3:RE and BaSnO3:RE, respectively. These results suggest the close relations of the luminescence properties of RE ions with the structural symmetry of the host material, ASnO3. In addition, the electronic structure and lattice dynamics of ASnO3:RE were investigated through theoretical calculations and optical measurements. The findings of this study provide important insights into the properties of RE ion-doped ASnO3 materials and their potential applications in optoelectronic devices.

Nicotine and tyrosine detection in blood and urine samples using taurine/reactive blue-immobilized conducting polymer composite

Lee, Won-Chul,Noh, Hui-Bog,Hussain, Khalil K.,Min, Su-Jin,Shim, Yoon-Bo Elsevier 2018 Sensors and actuators. B Chemical Vol.275 No.-

<P><B>Abstract</B></P> <P>A sensor for the nicotine (Nic) and L-tyrosine (Tyr) detection was developed with a taurine (Tau) and reactive blue 4 (RB4) bonded-conducting polymer ((poly (2,2´:5´,5″-Terthiophene-3´-<I>p</I>-benzoic acid) (pTBA)) layer formed on AuNPs doped-glassy carbon. The sensing material facilitated a selective electron transfer for Nic and Tyr oxidations and effectively blocked the interferences of negatively charged species by the sulfonate groups and carboxylic acid groups present on the Tau/RB4-pTBA/AuNPs layer. Each layer was characterized employing electrochemical and surface analysis methods. The experimental parameters affecting the sensor response were optimized in terms of amounts of Tau/RB4, pH, temperature, and interference effects. The modified electrode demonstrated excellent performance for the detection of Nic and Tyr in the concentration ranges of 0.02–2.0 and 2.0–300.0 μM and 0.02–5.0 and 5.0–300.0 μM, respectively, with the detection limit (<I>k = </I>3) of 0.93 ± 0.08 and 0.88 ± 0.06 nM. The reliability of sensor was evaluated by the simultaneous detection of Nic and Tyr in urine and whole blood samples. In addition, the cigarette smoking effect onto the concentrations of target molecules in blood were investigated, where the sensor probe confirms that decrease of Tyr and increase of Nic level by smoking.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Functionalized conductive polymer was used to covalently immobilize Taurine and Reactive Blue 4. </LI> <LI> The interferences of negatively charged species was blocked by the sulfonate groups and carboxylic acid groups. </LI> <LI> The modified electrode demonstrated an excellent performance for the detection of Nic and Tyr in blood and urine samples. </LI> <LI> The effect of cigarette smoking onto the concentrations of Nic and Tyr was investigated using human whole blood samples. </LI> </UL> </P>

A Comparison Method of Silver Nanoparticles Prepared by the Gamma Irradiation and in situ Reduction Methods

Lee, Chul-Jae,Karim, Mohammad Rezaul,Vasudevan, T.,Kim, Hee-Jin,Raushan, K.,Jung, Maeng-Joon,Kim, Dong-Yeub,Lee, Mu-Sang Korean Chemical Society 2010 Bulletin of the Korean Chemical Society Vol.31 No.7

Silver nanoparticles has been prepared by the $\gamma$-irradiation and in situ reduction methods. Based on the Raman spectra, TEM images, X-ray Diffraction (XRD) patterns and UV-vis spectra, the in situ reduction method is more stable and the average size of the silver nanoparticles is also smaller than by the $\gamma$-irradiation reduction method. It is identified that the silver ions interacting with nonbonding electrons of oxygen atom in the carbonyl group of polyvinylpyrrolidone (PVP) by the in situ reduction method. It is also found advantages of the in situ reduction method including no additional reducing agents, without $\gamma$-irradiations treatment and the room temperature treatment suitability.

WIG1 is crucial for AGO2-mediated <i>ACOT7</i> mRNA silencing via miRNA-dependent and -independent mechanisms

Lee, Hyung Chul,Jung, Seung Hee,Hwang, Hyun Jung,Kang, Donghee,De, Supriyo,Dudekula, Dawood B.,Martindale, Jennifer L.,Park, Byungkyu,Park, Seung Kuk,Lee, Eun Kyung,Lee, Jeong-Hwa,Jeong, Sunjoo,Han, K Oxford University Press 2017 Nucleic acids research Vol.45 No.11

<P><B>Abstract</B></P><P>RNA-binding proteins (RBPs) are involved in mRNA splicing, maturation, transport, translation, storage and turnover. Here, we identified <I>ACOT7</I> mRNA as a novel target of human WIG1. <I>ACOT7</I> mRNA decay was triggered by the microRNA miR-9 in a WIG1-dependent manner via classic recruitment of Argonaute 2 (AGO2). Interestingly, AGO2 was also recruited to <I>ACOT7</I> mRNA in a WIG1-dependent manner in the absence of miR-9, which indicates an alternative model whereby WIG1 controls AGO2-mediated gene silencing. The WIG1–AGO2 complex attenuated translation initiation via an interaction with translation initiation factor 5B (eIF5B). These results were confirmed using a WIG1 tethering system based on the MS2 bacteriophage coat protein and a reporter construct containing an MS2-binding site, and by immunoprecipitation of WIG1 and detection of WIG1-associated proteins using liquid chromatography-tandem mass spectrometry. We also identified WIG1-binding motifs using photoactivatable ribonucleoside-enhanced crosslinking and immunoprecipitation analyses. Altogether, our data indicate that WIG1 governs the miRNA-dependent and the miRNA-independent recruitment of AGO2 to lower the stability of and suppress the translation of <I>ACOT7</I> mRNA.</P>