Could cluster of risk factors predict clinical outcome in patients with acute myocardial infarction?

( Sang Mi Park ),( Hong Nyun Kim ),( Se Yong Jang ),( Myung Hwan Bae ),( Dong Heon Yang ),( Hun Sik Park ),( Yongkeun Cho ),( Shung Chull Chae ),( Jang Hoon Lee ) 대한내과학회 2015 대한내과학회 추계학술대회 Vol.2015 No.1

Purpose: Conventional risk factors are differently contributed to short-term prognosis of acute myocardial infarction (AMI); hypertension and diabetes increase adverse outcome, whereas hyperlipidemia, smoking, and obesity paradoxically decrease adverse outcome of post-MI patients. The aim of this study is to assess whether cluster of conventional risk factors, PARADOCS (Pressure of ARtery Abnormality, Diabetes, Obesity, Cholesterol, Smoking) score, would improve the ability to predict major adverse cardiac events (MACEs) in patients with AMI. Methods: Between November 2005 and July 2011, 24,020 patients (17,232 men; mean age=63.0±12.8) with AMI were analyzed from Korean AMI registry. PARADOCS score was calculated as follows; [number of non-paradoxical risk factors (NRF) -number of paradoxical risk factors (PRF)]+3 in which non-paradoxical risk factors are hypertension and diabetes, and paradoxical risk factors are the rest. The 1-year MACEs were defined as death and non-fatal MI. Results: NRF including hypertension and diabetes were present in 49.6% and 27.0%, whereas PRF including hyperlipidemia, smoking, and obesity were present in 12.3%, 43.0%, and 34.6%, respectively. During the follow-up, 1,409 (5.9%) MACEs occurred. PARADOCS score was significantly higher in patients with 1-year MACEs (3.38±1.03 versus 2.81±1.08, p<0.001). In Cox proportional hazards model, PARADOCS score was an independent predictor of 1-year MACEs (hazards ratio 1.26, 95% confidence interval 1.18-1.34; p<0.001) after adjusting for confounding variables. Patients were categorized into 3 groups according to the PARADOCS score; PARADOCSLOW (0-1, n=2,446), PARADOCSMID (2-3, n=14,594), and PARADOCSHIGH (4-5, n= 6,980). Kaplan-Meier survival curve showed that there were significant differences in the 1-year MACEs among three groups including 3.5% in PARADOCSLOW, 8.5% in PARADOCSMID, and 16.4% in PARADOCSHIGH, respectively (long-rank p<0.001). Conclusions: In post-MI patients, conventional risk factors are differently associated with short-term prognosis, and score of these risk factors, PARADOCS score, can provide useful prognostic information to clinicians.

Myocardial Protection by Recombinant Soluble P-selectin Glycoprotein Ligand-1 Suppression of Neutrophil and Platelet Interaction Following Ischemia and Reperfusion

Sang Soo Ham,Yoon Young Jang,Jin Ho Song,Hyang Mi Lee,Kwang Joon Kim,Jun Sik Hong,Yong Kyoo Shin 대한생리학회-대한약리학회 2000 The Korean Journal of Physiology & Pharmacology Vol.4 No.6

<P> Polymorphonuclear leukocytes (PMNs) play an important role in myocardial ischemia/reperfusion (MI/R) injury. Moreover, platelets are also important blood cells that can aggravate myocardial ischemic injury. This study was designed to test the effects of PMNs and platelets separately and together in provoking cardiac dysfunction in isolated perfused rat hearts following ischemia and reperfusion. Additional control rat hearts were perfused with 75⁓10<SUP>6</SUP> PMNs, with 75⁓10<SUP>6</SUP> platelets, or with 75⁓10<SUP>6</SUP> PMNs⁢75⁓10<SUP>6</SUP> platelets over a five minute perfusion followed by a 75 min observation period. No significant reduction in coronary flow (CF), left ventricular developed pressure (LVDP), or the first derivative of LVDP (dP/dt max) was observed at the end of the observation period in any non-ischemic group. Similarly, global ischemia (I) for 20 min followed by 45 minutes of reperfusion (R) produced no sustained effects on the final recovery of any of these parameters in any group of hearts perfused in the absence of blood cells. However, I/R hearts perfused with either PMNs or platelets alone exhibited decreases in these variables of 5∼10% (p<0.05 from control). Furthermore, I/R hearts perfused with both PMNs and platelets exhibited decreases of 50 to 60% in all measurements of cardiac function (p<0.01). These dual cell perfused I/R hearts also exhibited marked increases in cardiac myeloperoxidase (MPO) activity indicating a significant PMN infiltration, and enhanced P-selectin expression on the coronary microvascular endothelium. All cardiaodynamic effects as well as PMN accumulation and P-selectin expression were markedly attenuated by a recombinant soluble PSGL-1 which inhibits selectin mediated cell adhesion. These results provide evidence that platelets and PMNs act synergistically in provoking post-reperfusion cardiac dysfunction, and that this may be largely due to cell to cell interactions mediated by P-selectin. These results also demonstrate that a recombinant soluble PSGL-1 reduces myocardial reperfusion injury by platelet and PMNs interaction.

Water-soluble Genistin Glycoside Isoflavones Upregulate Antioxidant Metallothionein Expression and Scavenge Free Radicals

Chung, Mi-Ja,Kang, Ah-Young,Jun, Hee-Jin,Kim Sang-Yeon,Moon, Tae-Hwa,Park, Kwan-Hwa,Lee, Sung-Joon 생명자원연구 2005 생명자원연구 Vol.13 No.-

초보간호사의 이직의도 경험

이세영 ( Se Young Lee ),오은진 ( Eun Jin Oh ),성경미 ( Kyung Mi Sung ) 경희대학교 동서의학연구소 2013 동서간호학연구지 Vol.19 No.2

간호사의 이직률 증가는 양질의 숙련된 간호 인력확보에 큰 지장을 초래하며 무엇보다 전문직 발전을 저해하고 환자 간호의 질을 떨어뜨릴 수 있는데 우리나라 간호사의 이직률은 적정 이직률보다 훨씬 높고 이러한 현상은 병원에 남아 있는 간호사의 업무를 가중시키고 사기를 저하시켜 이들도 이직의도를 갖게 되거나 이직을 하게 되는 악순환을 유발하고 있다(Moon & Han, 2011). 이직의도와 이직률이 동일하지는 않지만 높은 이직의도는 이직률로 이어질 가능성이 높으므로 이러한 맥락에서 숙련된 간호 인력의 확보와 사회적 문제로 부각되고 있는 간호사 인력난 해소를 위해 초보간호사의 이직의도 경험을 확인함은 중요한 의미가 있을 것으로 생각된다.본 연구 대상인 초보간호사는 이직의도는 평균 14.5점(평점 3.6점)으로 일반 간호사(평균경력 8.8년)를 대상으로 한 Han 등(2010)의 2.9점보다 높고 본 연구 대상자와 같은 초보단계에 있는 간호사를 대상으로 한 Park (2002)의 3.5점과는 비슷한 수준이었다. 이는 이직의도가 초보간호사 단계에서 높음을 뒷받침하는 결과였으며 Er 등(2004)이 경력별로 이직의도를 살펴본 결과 2년 미만의 초보간호사가 가장 이직의도가 높았던 것과도 일치하는 것이다. 연구 대상자의 일반적 특성은 대부분 이직의도에 차이를 보였는데 이는 몇 몇 선행연구에서 나이가 25-29세, 연봉이 낮을수록, 교육 정도가 낮을수록, 임상 경력이 1-3년인 경우, 평간호사, 3교대 근무를 하는 군에서 이직의도가 높았다고 보고한 것과 비교해 볼 때 연령, 경력, 근무형태 등 대부분이 일치하였다(Cho, 2012; Lee & Yoo, 2011). 기타 본 연구 결과에서 26세까지 이직의도가 높아지다가 27세 이상에서 이직의도가 낮아지는 것으로 나타났는데 이는 연령과 이직의도가 단순한 부적 관계가 아니라 일정 연령까지는 이직의도가 증가하다가 그 이후에 이직의도가 감소된다고 보고한 Kim과 Park (1995)의 연구 결과와 일치하는 것이다. 본 연구에서 총 임상경력과 근무부서 만족정도에서 이직의도에 유의 차이가 있었고 경력 1년 이상에서 통계적으로 유의하게 이직의도가 높은 것으로 나타나 앞으로 인력관리 방안에 이를 적극 고려할 수 있을 것으로 보인다. 특히 경력 1년 이상인 초보단계 간호사를 대상으로 문제해결 능력 증진을 위한 지속적인 교육과 적극적인 위기 상담이 이루어진다면 조직 적응력 향상 및 이직률 감소에 일부 기여할 수 있을 것이다. 또한 초보 간호사가 전문직업인으로 성장하고 간호직에 대한 만족감을 높여 갈 수 있도록 체계적인 지원프로그램을 개발하여 적용할 필요가 있으며 이는 간호사의 이직률을 감소시키고 지속적으로 직업적 성장을 이루어 가도록 도와주는 한 방안이 될 수 있다. 특히 초보단계의 간호사는 발달기적으로 성인기 작되는 아직 정신 심리적으로 미숙한 시기이고, 다른 경력자에 비해 전문성을 기르기 위한 지원과 교육이 많이 필요로 되는 단계로 기존의 경력 간호사에 비해 중재 효과가 더 클 수 있다.본 연구 대상인 초보간호사들이 간호직에 대해 이직의도를 가졌던 경험내용으로는 대인관계 스트레스가 가장 많았고 직접 간호수행 능력 부족, 비간호 업무에 대한 부담 등이 있었다. 이러한 내용은 Park과 Chun (2008)이 신규간호사는 간호수행 능력의 부족이나 간호조직 내 인간관계 갈등이 이직의도를 가졌던 주된 이유였다고 보고한 것과 일치하는 것이고, Lee와 Kim (2008)의 임상간호사의 이직경험에 관한 연구에서 동료들과의 미성숙한 대인관계는 직업에 대한 만족감을 떨어뜨리고 이러한 스트레스는 이직을 고려하게 되는 변인으로 작용한다고 보고한 것과 일치하는 것이다. 또한 Son, Koh, Kim과 Moon (2001)이 질적 연구에서 신규간호사들이 실무에 적응할 때 힘들어 하는 주된 문제를 간호수행능력부족과 인간관계에서의 자아존중감 손상으로 인한 부적응이라고 보고한 것과도 일부 유사한 결과라 할 수 있다. 본 연구에서 나타난 이직의도 경험은 선행연구와 달리 포괄적인 내용을 제시하고 있는데, 본 연구대상자는 복합 업무의 부담을 가장 많이 보고하였고, 대인관계 스트레스의 주된 이유로 상사나 동료와의 등을 지적하였다. 이는 근무부서 불만족의 구체적인 이유로 과중한 업무부담과 대인관계와 관련된 불만 등을 서술한 결과와도 연결되며 따라서 이직의도를 낮추기 위해서는 근무지 불만족의 요인을 파악하여 근무지에 만족할 수 있는 방안을 모색하는 것이 중요하다고 생각한다. 기타 다른 연구에서는 보고되지 않았던 새로운 경험내용으로 간호직에 대한 회의감이 있었는 데 Oh, Lee와 Sung (2013)의 일 연구에서 전문직 자아개념이 높을 때 이직의도가 낮은 것으로 나타나 초보간호사의 전문직 자아개념을 높이는 중재프로그램이 간호직 회의감을 낮추는 방법이 될 수 있으리라 사료된다.한편 본 연구 대상자들은 대인관계 요소 이외의 간호직에 계속 종사하기 위해 개선해야 할 내용으로 보수를 가장 중요하게 여겼다. 이는 Jeon과 Kim (2010)의 연구에서 지방 중소병원 간호사의 이직 결정이유 중 가장 높은 비율을 차지하는 것이 불합리한 급여수준이라고 보고하였고 Kim과 Chung (2008)은 연구에서 간호사의 직무만족에 보수가 영향을 끼침을 보고한 것과 유사한 결과였다. 다음으로 본 연구에서는 간호직 계속 종사를 위해 개선해야 할 내용으로 업무량, 업무환경, 복지시설, 간호사의 위상 순으로 높게 나타났으며 이는 An (2012)의 중소병원 간호사를 대상으로 한 연구에서 이직계획 이유로 보수, 간호업무량, 복리후생, 교대근무, 업무환경 순으로 보고한 것과 비교해 볼 때 보수, 업무량, 복지, 업무환경 등 대부분이 일치하였다. 또한 Lee와 Kim (2008)의 임상간호사의 이직경험에 관한 연구에서도 개인적 문제뿐만 아니라 간호사의 전문성을 저해하는 열악한 근무환경 등의 문제로 이직하였다고 보고하여 본 연구 대상자들이 업무환경과 함께 간호전문직의 위상을 개선해야 할 내용으로 요구한 것과도 일부 일치하였다. 그러므로 초보 간호사의 이직률을 낮추기 위해서 간호사의 업무특성을 고려한 합당한 대우와 적정한 보상이 주어지는 것이 필요하다고 사료된다. This study was aimed to explore turnover intention of novice nurses. Methods: This study was an exploratory survey including quantitative and qualitative components. Qualitative data were obtained from an open survey question in the survey and analyzed using the method of content analysis. The data were collected from 245 nurses with less than three years experience at six general hospitals. Results:The early stage nurses scored an average of 14.5 (±3.31) in turnover intention. Fourteen themes were identified in turnover intention experiences of early stage nurses, and each theme was divided into five categories: interpersonal relationship stress (33.7%), being regretful for choosing a nursing career (21.6), A feeling of low competency for direct nursing care (19.8), dissatisfaction with the welfare of the hospital (13.0), Increased extra-work burden (11.9). The participants requested for improvement in the following conditions to continue a nursing career descending order in priority: wage (3.6±1.50), work load (3.0±1.83), work environment (2.8±1.63), welfare facilities (1.4±1.53),the status of nurse (1.2±1.57), etc. Conclusion: These findings are helpful for the development of intervention strategies to decrease turnover intention of early stage nurses.

배추의 형질전환용 선발항생제로서 Paromomycin의 이용

조미애,민성란,고석민,유장렬,이준행,최필선,Cho, Mi-Ae,Min, Sung-Ran,Ko, Suck-Min,Liu, Jang-Ryol,Lee, Jun-Haeng,Choi, Pil-Son 한국식물생명공학회 2006 식물생명공학회지 Vol.33 No.4

정상' 배추와 '서울' 배추의 배축절편을 선발마커로서 hygromycin 저항성유전자를 갖고 있는 pCAMBIA1301와 paromomycin저항성유전자를 갖고 있는 pPTN290으로 각각 형질 전환된 LBA4404 또는 EHA101균주와 공동배양한 후 선발배지에서 배양하면서 형질전환체를 선발하였다. 형질전환빈도는 사용된 항생제와 품종에 따라서 현저하게 차이가 있었으며, 특히 paromomycin은 hygromycin보다 효과적이었고 정상 배추는 서울배추보다 양호하였다. 가장 높은 형질전환빈도는 (0.70%) 100mg/L paromomycin이 첨가된 선발배지에서 정상배추의배축을 배양할 경우 얻어졌다. GUS양성반응으로 확인 한 결과 정상배추에서 9개체와 서울배추에서 3개체를 각각 얻었으며, 온실에서 생장한 후 $T_1$종자를 수확하였다. $T_1$ 종자를 다시 발아시켜 유식물체를 얻은 후 GUS양성반응을 확인함으로서 외래유전자가 안정적으로 발현하고 있음을 확인하였다. Hypocotyl explants of Chinese cabbage (us. 'Jeong Sang' and 'Seoul') produced adventitious shoots on Murashige and Skoog (MS) basal medium supplemented with 4mg/L $AgNO_3$, 5 mg/L acetosyringone, 4 mg/L 6-benzyladenine and 3mg/L alpha-naphthaleneacetic acid (SI) after cocoultivation with strains of Agrobacterium tumefaciens (LBA4404) harboring the pCAMBIA1301 and the $_PPTN290$ containing hygromycin-resistance gene and paromomycin-resistance gene as a selectable marker genes, respectively. There was a significant difference in the frequency of transgenic plants depending on antibiotics and cultivars used. Paromomycin was better than hygromycin, and cultivar 'Jeong-sang' was higher than 'c.v. Seoul' in the frequency of transgenic plants. In particular, the highest frequency (0.70%) of transgenic plants was obtained from selection medium (SI) containing 100mg/L paromomycin in c.v., 'Jeong-sang' GUS positive response were obtained 9 plants and 3 plants from the cultivars, 'Jeong-sang' and 'Seoul', respectively. They were grown to maturity in a greenhouse and normally produced $T_1$ seeds. GUS histochemical assay for progeny $(T_1)$ revealed that the transgenes were expressed in the plant genome.

Inhibition of p38 pathway-dependent MPTP-induced dopminergic neurodegeneration in estrogen receptor alpha knockout mice

( Chul Ju Hwang ),( Dong Young Choi ),( Yu Yeon Jung ),( Young Jung Lee ),( Jae Suk Yun ),( Ki Wan Oh ),( Sang Bae Han ),( Seikwan Oh ),( Mi Hee Park ),( Jin Tae Hong ) 영남대학교 약품개발연구소 2016 영남대학교 약품개발연구소 연구업적집 Vol.26 No.-

Approximately, 7-10 million people in the world suffer from Parkinson``s disease (PO), Recently, increasing evi-dence has suggested the protective effect of estrogens against nigrostriatal dopaminergic damage in PD. In this study, we investigated whether estrogen affects l-methyl-4-phenyl-l,2,3,6-tetrahydropyridine (MPTP)-induced behavioral impairment in estrogen receptor alpha (ERa)-deficient mice. MPTP (15 mg/kg, four times with l.5-h interval)-induced dopaminergic neurodegeneration was evaluated in ERα wild-type (WT) and knockout (KO) mice. Larger dopamine depletion, behavioral impairments (Rotarod test, Pole test, and Gait test), activation of mi-croglia and astrocytes, and neurointlammation after MPTP injection were observed in ERα KO mice compared to those in WT mice.Immunostaining for tyrosine hydroxylase (TH) after MPTP injection showed fewerTH-positive neurons in ERα KO mice than WT mice. Levels of dopamine and 3,4-<lihydroxyphenylacetic acid (OOPAC, metab-olite of dopamine) were also lowered in ERα KO mice after MPTP injection. Interestingly, a higher immunoreac-tivity for monoamine oxidase (MAO) B was found in the substantia nigra and striatum of ERα KO mice after MPTP injection. We also found an increased activation of p38 kinase (which positively regulates MAO B expression) in ERα KO mice. In vitro estrogen treatment inhibited neuroinflammation in l-methyl-4-phenyl pyridium (MPP +)-treated cultured astrocyte cells; however, these inhibitory effects were removed by p38 inhibitor. These results indicate that ERα might be important for dopaminergic neuronal survival through inhibition of p38 pathway.

Nanogenerators: Fully Rollable Transparent Nanogenerators Based on Graphene Electrodes (Adv. Mater. 19/2010)

Choi, Dukhyun,Choi, Min-Yeol,Choi, Won Mook,Shin, Hyeon-Jin,Park, Hyun-Kyu,Seo, Ju-Seok,Park, Jongbong,Yoon, Seon-Mi,Chae, Seung Jin,Lee, Young Hee,Kim, Sang-Woo,Choi, Jae-Young,Lee, Sang Yoon,Kim, Jo WILEY-VCH Verlag 2010 ADVANCED MATERIALS Vol.22 No.19

<B>Graphic Abstract</B> <P>The cover shows an image of fully rollable transparent nanogenerators synthesized using chemical vapor deposition grown large-scale graphene sheets as transparent electrodes and piezoelectric ZnO nanorod arrays. Sang-Woo Kim, Jae-Young Choi, and co-workers report on p. 2187 the electrical and structural stability of the nanogenerators, with excellent charge scavenging performance under external mechanical loads such as bending and rolling. This study shows that graphene-based nanogenerators are very promising for self-powered rollable transparent device applications. <img src='wiley_img_2010/09359648-2010-22-19-ADMA201090066-content.gif' alt='wiley_img_2010/09359648-2010-22-19-ADMA201090066-content'> </P>

Co-culture with NK-92MI cells enhanced the anti-cancer effect of bee venom on NSCLC cells by inactivation of NF-${\kappa}B$

Kollipara, Pushpa Saranya,Kim, Jung Hyun,Won, Dohee,Lee, Sang Min,Sung, Ha Chang,Chang, Hyun Sok,Lee, Kang Tae,Lee, Kang Sik,Park, Mi Hee,Song, Min Jong,Song, Ho Sueb,Hong, Jin Tae 대한약학회 2014 Archives of Pharmacal Research Vol.37 No.3

In the present study we experimented on a multimodal therapeutic approach, such as combining chemotherapy agent (Bee venom) with cellular (NK-92MI) immunotherapy. Previously bee venom has been found to show anti-cancer effect in various cancer cell lines. In lung cancer cells bee venom showed an $IC^{50}$ value of $3{\mu}g/ml$ in both cell lines. The co-culture of NK-92MI cell lines with lung cancer cells also show a decrease in viability upto 50 % at 48 h time point. Hence we used bee venom treated NK-92MI cells to co-culture with NSCLC cells and found that there is a further decrease in cell viability upto 70 and 75 % in A549 and NCI-H460 cell lines respectively. We further investigated the expression of various apoptotic and anti-apoptotic proteins and found that Bax, cleaved caspase-3 and -8 were increasing where as Bcl-2 and cIAP-2 was decreasing. The expression of various death receptor proteins like DR3, DR6 and Fas was also increasing. Concomitantly the expression of various death receptor ligands (TNFalpha, Apo3L and FasL) was also increasing of NK-92MI cells after co-culture. Further the DNA binding activity and luciferase activity of NF-${\kappa}B$ was also inhibited after co-culture with bee venom treated NK-92MI cell lines. The knock down of death receptors with si-RNA has reversed the decrease in cell viability and NF-${\kappa}B$ activity after co-culture with bee venom treated NK-92MI cells. Thus this new approach can enhance the anti-cancer effect of bee venom at a much lower concentration.

[CH-0005] The discovery of novel SNPs associated with group A soyasaponin biosynthesis from Korea soybean core collection

Sang-Beom Lee(Sang-Beom Lee),Soo-Kwon Park(Soo-Kwon Park),Kwang-Sik Lee(Kwang-Sik Lee),Hyun-Young Kim(Hyun-Young Kim),Dool-Yi Kim(Dool-Yi Kim),Mi-Suk Seo(Mi-Suk Seo),Soon-Chun Jeong(Soon-Chun Jeong),J 한국육종학회 2022 한국육종학회 공동학술발표집 Vol.2022 No.-

Effect of maternal food restriction during pregnancy on hypothalamic regulators and leptin signaling

( Sang Mi Lee ),( Hye Won Kim ),( Jeon Ji Hyun ),( Jang Inae ),( Mi Hye Park ),( Sun Hee Chun ),( Young Ju Kim ) 대한산부인과학회 2012 대한산부인과학회 학술대회 Vol.98 No.-

This study was performed to evaluated the effect of maternal food restriction during pregnancy and lactation on changes of appetite regulators and leptin signaling in the 3-week-old rat pup`s hypothalamus. At day 10 of gestation, Spraque-Dawley rats were divided into two groups: 1) Control group, given an ad libitum diet during whole experimental period and 2) Intrauterine Growth Restriction (IUGR) group, given a 50% food restricted diet during pregnancy and ad libitum diet during lactation period. At 3 weeks of age, offspring was killed and hypothalamus was stored at liquid nitrogen. Hypothalamic mRNA expression of pro-opimelanocortin, melanocortin 4 receptor, retinoic acid X receptor were measured using real-time PCR. Hypothalamic protein expressions of pro-opimelanocortin, neuropeptide-Y, melanocortin 4 receptor, retinoic acid X receptor were measured using western blot analysis. All the results were analyzed by statistical analysis. Body weights of male and female offspring in IUGR groups were similar to those in control groups. Hypothalamic mRNA expression of pro-opiomelanocortin was significantly lower in IUGR groups than in control groups (p<0.05). mRNA expression of melanocortin 4 receptor, and retinoic acid X receptor were significantly increased in IUGR groups as compared to control groups (p<0.05). In IUGR groups, hypothalamic protein expression of pro-opimelanocortin (p<0.001), neuropeptide-Y (p<0.05) were significantly lower than in control groups. Protein expression of melanocortin 4 receptor and retinoic acid X receptor were significantly higher in IUGR groups than in control groups (p<0.05). We suggested that maternal under nutrition during pregnancy may influence to alteration of hypothalamic appetite regulators and leptin signaling.