Serial values for hematologic and biochemical analysis after myocardial infarction in rats

( Mi Jin Lee ),( Hyun Jin Tae ),( Ying Hua Li ),( Do Hyeon Yu ),( In Ae Han ),( Seok Won Lee ),( Dong Choon Ahn ),( In Shik Kim ),( Jin Ho Park ) 한국가축위생학회 2008 韓國家畜衛生學會誌 Vol.31 No.2

To diagnose acute myocardial infarction(MI), many cardiac markers have been used in hematologic and biochemical analysis, and many studies have been published for hema-tologic and biochemical analysis associated with human acute MI. However, after occurrence of acute MI, the serial investigation for values in hematologic and bioche-mical analysis including chronic MI has rarely been performed. To observe the change of the serial values in hematologic and biochemical analysis, we induced artificial MI. The left main descending artery(LMDA) of the left coronary artery was ligated during the progression(day 1, 3, 5, 7, 14 and 30) of MI. Total 66 Sprague-Dawley rats were divided into the sham group(n=24, thoracotomy without LMDA ligation) and the experimental(MI) group(n=42, with LMDA ligation). And all individual in each group was sacrified at day 1, 3, 5, 7, 14 and 30 for the hematologic and biochemical analysis. In comparison of hematologic analysis between the sham and MI groups, the mean values of red blood cell(RBCs), hemoglobin and hematocrit(HCT) showed a steady increase. In biochemical analysis, the mean values of glucose, choles-terol, total creatine kinase(CK) and isoenzyme MB, and lactate dehydrogenase(LDH) were increased in all MI groups compared with the sham groups. The results of this study suggest that early hematologic and biochemical mean values occurred after acute MI are similar to those of human acute MI. In conclusion, we could observe the alterations and serial values in hematologic and biochemical analysis to the extent of chronic status after acute MI.

Serial values for hematologic and biochemical analysis after myocardial infarction in rats

Lee, Mi-Jin,Tae, Hyun-Jin,Li, Ying-Hua,Yu, Do-Hyeon,Han, In-Ae,Lee, Seok-Won,Ahn, Dong-Choon,Kim, In-Shik,Park, Jin-Ho The Korean Society of Veterinary Service 2008 韓國家畜衛生學會誌 Vol.31 No.2

To diagnose acute myocardial infarction (MI), many cardiac markers have been used in hematologic and biochemical analysis, and many studies have been published for hematologic and biochemical analysis associated with human acute MI. However, after occurrence of acute MI, the serial investigation for values in hematologic and biochemical analysis including chronic MI has rarely been performed. To observe the change of the serial values in hematologic and biochemical analysis, we induced artificial MI. The left main descending artery (LMDA) of the left coronary artery was ligated during the progression (day 1, 3, 5, 7, 14 and 30) of MI. Total 66 Sprague-Dawley rats were divided into the sham group (n=24, thoracotomy without LMDA ligation) and the experimental (MI) group (n=42, with LMDA ligation). And all individual in each group was sacrified at day 1, 3, 5, 7, 14 and 30 for the hematologic and biochemical analysis. In comparison of hematologic analysis between the sham and MI groups, the mean values of red blood cell (RBCs), hemoglobin and hematocrit (HCT) showed a steady increase. In biochemical analysis, the mean values of glucose, cholesterol, total creatine kinase (CK) and isoenzyme MB, and lactate dehydrogenase (LDH) were increased in all MI groups compared with the sham groups. The results of this study suggest that early hematologic and biochemical mean values occurred after acute MI are similar to those of human acute MI. In conclusion, we could observe the alterations and serial values in hematologic and biochemical analysis to the extent of chronic status after acute MI.

백서 심근경색모델에서 시간경과와 경색의 크기에 따른 심자도의 변화

김미성(Mi Sung Kim),박영선(Young Sun Park),권순길(Sun Gil Kwon),지정훈(Jeong Hoon Ji),신종성(Jong Sung Shin),오광식(Kwang Sik Oh),양용모(Yong Mo Yang),연태진(Tae Jin Youn),김동운(Dong Woon Kim),조명찬(Myeong Chan Cho),이용호(Yong Ho 대한내과학회 2002 대한내과학회지 Vol.62 No.1

N/A Background: Magnetocardiogram (MCG), which records the changes of magnetic fields generated by the heart`s electrical activity, theoritically can provide unique data for clinical application. To date, MCG has been investigated only at a single time point after myocardial infarction (MI) with severe left ventricular dysfunction in rats. The purpose of the present study was to investigate sequential changes of MCG after MI and to evaluate effects of infarct size on MCG. Methods: Acute MI were induced by the permanent ligation of left coronary artery in 22 rats. Magnetic fields were recorded just above a rat with Nb Superconducting Quantum Interference Device (SQUID) gradiometer inside a magnetically shielded room. MCG was measured before and immediately after surgery and it was subsequently recorded at the time points of 1, 4 and 6 hours post operatively. MCG was also measured at 1, 3, 7 and 21 days after surgery. Results: Elevation of ST segment and appearance of pathological Q wave on the MCG were evident immediately after the ligation of coronary artery and persisted to 6 hours after MI. On MCG, ST segment was depressed and T wave was inverted from 1 day after MI. In rats with small-and moderate- sized MI (infarct size〈30%), ST depression returned to near the isoelectric level and Q wave disappeared from 7 days after MI. However, ST depression and Q wave were still present in rats with larger infarct (infarct size≥30%). Conclusion: Evolutional changes of MCG were well-recognized up to 21 days after MI. Furthermore, the infarct size can be expressed by the extent of Q wave and ST segment depression on MCG. Taken together, these data indicate that MCG is a helpful modality for the diagnosis, evaluation of infarct size and follow up after MI.(Korean J Med 62:42-48, 2002)

Effects of sperm insemination on the final meiotic maturation of mouse oocytes arrested at metaphase I after in vitro maturation

Yoon, Jeong,Juhn, Kyoung-Mi,Yoon, San-Hyun,Ko, Yong,Lim, Jin-Ho The Korean Society for Reproductive Medicine 2017 Clinical and Experimental Reproductive Medicine Vol.44 No.1

Objective: The aims of this study were to investigate whether fertilization could induce the resumption of meiosis in mouse oocytes arrested at metaphase I (MI) after in vitro maturation (IVM), and to investigate the effect of $Ca^{2+}$ chelator treatment at the time of fertilization on the transition from MI to metaphase II (MII). Methods: MII-stage and arrested MI-stage mouse oocytes after IVM were fertilized, and then embryonic development was monitored. Blastocysts from each group were transferred into 2.5 days post-coitum pseudo-pregnant ICR mice. MI oocytes after IVM were treated with a $Ca^{2+}$ chelator to investigate the effect of $Ca^{2+}$ oscillations on their maturation. Results: As insemination time increased, the number of oocytes in the MI group that reached the MII stage also increased. The blastocyst rates and total cell numbers in the MII group were significantly higher than in the MI group. No pregnancy occurred in the MI group, but 10 pregnancies were achieved (10 of 12) in the MII group. The proportion of MI oocytes that matured to MII oocytes after fertilization was significantly higher in the non-treated group than in the $Ca^{2+}$ chelator-treated group. Conclusion: The findings that a higher proportion of MI-arrested oocytes progressed to MII after fertilization and that the MI-to-MII transition was blocked by $Ca^{2+}$ chelator treatments before fertilization indicate that the maturation of MI oocytes to MII oocytes is associated with intracellular $Ca^{2+}$ oscillations driven by fertilization.

Transcriptional activation of hypoxia-inducible factor-1α by HDAC4 and HDAC5 involves differential recruitment of p300 and FIH-1

Seo, Hee-Won,Kim, Eun-Jin,Na, Hyelin,Lee, Mi-Ock Elsevier 2009 FEBS letters Vol.583 No.1

<P><B>Abstract</B></P><P>The interplay between hypoxia-inducible factor-1α (HIF-1α) and histone deacetylase (HDACs) have been well studied; however, the mechanism of cross-talk is unclear. Here, we investigated the roles of HDAC4 and HDAC5 in the regulation of HIF-1α function and its associated mechanisms. HDAC4 and HDAC5 enhanced transactivation by HIF-1α without stabilizing HIF-1α. HDAC4 and HDAC5 physically associated with HIF-1α through the inhibitory domain (ID) that is the binding site for factor inhibiting HIF-1 (FIH-1). In the presence of these HDACs, binding of HIF-1α to FIH-1 decreased, whereas binding to p300 increased. These results indicate that HDAC4 and HDAC5 increase the transactivation function of HIF-1α by promoting dissociation of HIF-1α from FIH-1 and association with p300.</P><P><B>Structured summary:</B></P><P>MINT-6802187:</P><P><I>HIF1 alpha</I> (uniprotkb:Q16665) <I>physically interacts</I> (MI:0218) with <I>FIH1</I> (uniprotkb:Q9NWT6) by <I>anti bait coimmunoprecipitation</I> (MI:0006)</P><P>MINT-6802058:</P><P><I>HIF1 alpha</I> (uniprotkb:Q16665) <I>physically interacts</I> (MI:0218) with <I>HDAC4</I> (uniprotkb:P56524) by <I>pull down</I> (MI:0096)</P><P>MINT-6802021:</P><P><I>HIF1 alpha</I> (uniprotkb:Q61221) <I>physically interacts</I> (MI:0218) with <I>HDAC4</I> (uniprotkb:P56524) by <I>anti bait coimmunoprecipitation</I> (MI:0006)</P><P>MINT-6802036:</P><P><I>HIF1 alpha</I> (uniprotkb:Q61221) <I>physically interacts</I> (MI:0218) with <I>HDAC5</I> (uniprotkb:Q9UQL6) by <I>anti bait coimmunoprecipitation</I> (MI:0006)</P><P>MINT-6802102:</P><P><I>HIF1 alpha</I> (uniprotkb:Q16665) <I>physically interacts</I> (MI:0218) with <I>HDAC5</I> (uniprotkb:Q9UQL6) by <I>pull down</I> (MI:0096)</P><P>MINT-6802121, MINT-6802156:</P><P><I>P300</I> (uniprotkb:Q09472) <I>physically interacts</I> (MI:0218) with <I>HIF1 alpha</I> (uniprotkb:Q16665) by <I>anti bait coimmunoprecipitation</I> (MI:0006)</P>

Histone deacetylase 3 is selectively involved in L3MBTL2-mediated transcriptional repression

Yoo, Jung-Yoon,Choi, Kyung-Chul,Kang, HeeBum,Kim, Young Jun,Lee, Jeongmin,Jun, Woo Jin,Kim, Mi-Jeong,Lee, Yoo-Hyun,Lee, Ok-Hee,Yoon, Ho-Geun Elsevier 2010 FEBS letters Vol.584 No.11

<P><B>Abstract</B></P><P>This is the first report that L(3)mbt-like 2 (L3MBTL2) specifically interacts with the histone deacetylase domain of histone deacetylase 3 (HDAC3) via its MBT domain. Here, we show that L3MBTL2 selectively interacts with HDAC3, but not other class I HDACs. An in vitro peptide-binding assay demonstrated the specific association of HDAC3 with methylated histone-K20 tail and L3MBTL2. Furthermore, depletion of HDAC3 resulted in a decrease of methylated K20-H4, as well as an increase in acetylated histone H3. Consequently, HDAC3 knock-down selectively suppressed L3MBTL2-mediated transcriptional repression. Taken together, our results reveal the concerted action of both HDAC3 and L3MBTL2 in histone deacetylation and methylation-dependent transcriptional repression.</P><P><B>Structured summary</B></P><P>MINT-7719975: <I>L3MBTL2</I> (uniprotkb:Q969R5) and <I>HDAC3</I> (uniprotkb:O15379) <I>colocalize</I> (MI:0403) by <I>fluorescence microscopy</I> (MI:0416)</P><P>MINT-7719941, MINT-7719921: <I>L3MBTL2</I> (uniprotkb:Q969R5) <I>binds</I> (MI:0407) to <I>HDAC3</I> (uniprotkb:O15379) by <I>pull down</I> (MI:0096)</P><P>MINT-7719991: <I>HDAC3</I> (uniprotkb:O15379) <I>physically interacts</I> (MI:0915) with <I>L3MBTL2</I> (uniprotkb:Q969R5) by <I>anti bait coimmunoprecipitation</I> (MI:0006)</P><P>MINT-7719958: <I>L3MBTL2</I> (uniprotkb:Q969R5) <I>physically interacts</I> (MI:0915) with <I>HDAC3</I> (uniprotkb:O15379) by <I>anti tag coimmunoprecipitation</I> (MI:0007)</P><P>MINT-7719897: <I>HDAC3</I> (uniprotkb:O15379) <I>physically interacts</I> (MI:0915) with <I>L3MBTL2</I> (uniprotkb:Q969R5) by <I>two hybrid</I> (MI:0018)</P>

한국전쟁기 김말봉의 『별들의 故鄕』 연구

최미진(Choi Mi­Jin),김정자(Kim Jeong­Ja) 한국문학회 2005 韓國文學論叢 Vol.39 No.-

This paper takes a close look at Kim, Mal-bong's Hometown of Stars released during the Korean War period, in order to relate the writer's literary characteristics seen after the liberation from the Japanese colonial rule to the characteristics in social melodrama. Hometown of Stars adopts the formula of social melodrama that gives its unique double effect by combining basic plot of love stories among characters with social and historical events as a background. First, in the Hometown of Stars, the Licensed Prostitution Abolition Movement after the Liberalization plays a role in diversifying love relationship among characters and gives an opportunity for self-reflection. In particular, the Movement is used to highlight the changing social views of the characters. The writer indirectly sheds light on the inhumane treatment of prostitutes and the problems of residual values of the feudalistic way of thinking based on the class system. However, his intention to put the behind story of social and historical facts into a realistic context, rather than to investigate the Movement in itself helps intensify the pleasure to read this novel. Next, the social and historical background of the Korean War serves as a vehicle to provide plausibility to the plot and to raise readers' awareness of the reality through the hidden fact of history. The writer's views that the government's misinformation at the time of the Korean War helped increase people's casualties are represented in a natural fashion through characters' behaviors, evoking a sense of reality on the historical facts from readers. Moreover, the War, which serves as a defining moment in dramatizing love conflicts of the characters, boosts the interest in reading the story. The writer sets the Korean War as a turning point to convert the ideological confrontation after the Liberalization to the punitive confrontation structure in which virtue is rewarded and vice is punished. The ending of Hometown of Stars shows both melodramatic limit and social melodramatic characteristics that go beyond the limit, because the clash between the prevailing ideology and the moral faith forms the typical punitive confrontation structure, while transcending the formula to reach the universal value of humanity, especially religious ethics. The writer is not swayed by conventions or ideology and he uses “star” as a metaphor of human and spirit, hoping that they can be reborn in the “hometown”, the source of new hope. In this symbolic fashion, he suggests a “wise” way to overcome wartime confusion to readers. The formula of social melodrama in Hometown of Stars not only provides pleasure of reading popular novels, but also puts social and historical facts into a realistic context and deals a measurable blow to covered historical facts and ignored social thinking frame. In that sense, Kim, Mal-bong could succeed in strengthening literature's impact by the means of social melodrama that contains popular and social elements at the same time. This is related to his direct involvement and hard work in abolishing the Licensed Prostitution System after the Liberation. It is also notable that the Licensed Prostitution Abolition Movement is a main theme in Hometown of Stars, as well as in his other works after the Liberation, such as Splendid Hell, Blue Wings and Life.

일반 모델 덧씌우기 방식을 적용한 농촌지도공무원 역량모델 개발

김진모,주대진,이진화,길대환,주현미,이정은 한국농업교육학회 2007 농업교육과 인적자원개발 Vol.39 No.2

한국인 직무 스트레스 측정도구의 개발 및 표준화

장세진,고상백,강동묵,김성아,강명근,이철갑,정진주,조정진,손미아,채창호,김정원,김정일,김형수,노상철,박재범,우종민,김수영,김정연,하미나,박정선,이경용,김형렬,공정옥,김인아,김정수,박준호,현숙정,손동국 大韓産業醫學會 2005 대한직업환경의학회지 Vol.17 No.4

Background and Purposes: Over the past three decades, numerous studies performed in Korea have reported that job stress is a determinant risk factor for chronic diseases and work disability. Every society has its own culture and occupational climate particular to their organizations, and hence experiences different occupational stress. An occupational stress measurement tool therefore needs to be developed to estimate it objectively. The purpose of this study is to develop and standardize the Korean Occupational Stress Scale (KOSS) which is considered to be unique and specific occupational stressors in Korean employees. Subjects and Methods: Data were obtained from the National Study for Development and Standardization of Occupational Stress (NSDSOS Project: 2002-2004). A total of 12,631 employees from a nationwide sample proportional to the Korean Standard Industrial Classification and the Korean Standard Occupational Classification were administered. The KOSS was developed for 2 years (2002-2004). In the first year, we collected 255 items from the most popular job stress measurement tools such as JCQ, ERI, NIOSH and OSI, and 44 items derived from the a qualitative study (depth interview). Forty-three items of KOSS, in the second year, were retained for use in the final version of the KOSS by using Delphi and factor analysis. Items were scored using conventional 1-2-3-4 Likert scores for the response categories. Results: We developed eight subscales by using factor analysis and validation process: physical environment (3 items), job demand (8 items), insufficient job control (5 items), interpersonal conflict (4 items), job insecurity (6 items), organizational system (7 items), lack of reward (6 items), and occupational climate (4 items). Together they explained 50.0% of total variance. Internal consistency alpha scores were ranged from 0.51 to 0.82. Twenty-four items of the short form of the KOSS (KOSS-SF) were also developed to estimate job stress in the work setting. Because the levels of the subscales of occupational stress were gender dependent, gender-specific standard norms for both the 43-item full version and the 24-item short form using a quartile for the subscales of KOSS were presented. Conclusion: The results of this study suggest that KOSS might be an appropriate measurement scale to estimate occupational stress of Korean employees. Further and more detailed study needs to be conducted to improve the validity of this scale.

성격 강점에 기반한 유아교사의 행복 증진 프로그램 적용 및 효과

김미진 ( Mi Jin Kim ),황해익 ( Hae Ik Hwang ) 한국유아교육학회 2015 유아교육연구 Vol.35 No.5

본 연구는 성격 강점에 기반한 유아교사의 행복 증진 프로그램을 유아교사에게 적용하여 그 효과를 검증하고 추후 효과적인 적용을 위한 시사점을 제안하는 데 목적이 있다. 본 연구의 대상은 유아교사 40명으로 실험집단 20명, 통제집단 20명으로 구성되었다. 실험집단에는 주 1회, 2시간씩 13회기의 프로그램을 제공하였으며, 통제집단에는 아무런 처치도 가하지 않았다. 본 연구에서 사용된 측정도구는 다차원적행복척도, 긍정심리치료척도, 영유아교사의 행복측정척도였다. 연구 결과, 모든 종속측정치에서 실험집단과 통제집단 간 유의미한 사후검사 평균 차이가 나타났으며, 집단 간 차이는 4주 후인 추후검사까지 지속되었다. 이를 통해본 연구에서 개발된 성격 강점에 기반한 유아교사의 행복 증진 프로그램이 유아교사들의 행복 증진에 실질적인 기여를 하고, 그 효과가 프로그램 종료 후에도 지속적으로 유지된다는것을 알 수 있었다. The purpose of this study is to apply Kim Mi-jin(2015)’s Character Strengths- Based Happiness Enhancement Program for Early Childhood Teachers to participating early childhood teachers to examine its effect and ultimately to give some suggestions on the effective application of the program. The subjects of this study were 40 early childhood teachers who were 20 teachers in an experimental group and 20 in a control group. The experimental group participated in this program for 13 weeks, once a week and two hour at a time, and the control group did not participate in this program at all. The scales for this study were Multidimensional Measure of Flourishing, Positive Psychotherapy Inventory and Happiness Measurement Scale for Early Childhood Teachers. As a result of this study, there were significant differences in all dependent measures for the post test between the experimental group and the control group and these differences between groups lasted to the retention test which was conducted 4 weeks later after the program application. It confirms that the Character Strengths-Based Happiness Enhancement Program for Early Childhood Teachers, which was developed in this study, is an effective way to enhance early childhood teachers’ happiness and the program remained steadily effective even after completing the program.