요양병원 간호사의 낙상예방행위에 미치는 영향요인

최주연,이가언,전혜정,Choi, Ju Youn,Lee, Ga Eon,Jun, Hye Jung 한국직업건강간호학회 2022 한국직업건강간호학회지 Vol.31 No.4

Purpose: The purpose of this study was to identify factors influencing fall-prevention behaviors of nurses working in long-term care hospitals. Methods: Participants included 147 nurses working in 10 long-term care hospitals in B city. Data were collected from September 20-October 12, 2016. SPSS/WIN 21.0 was used for analysis with t-test, ANOVA, Scheffé test, Pearson correlation coefficients, and multiple regression. Results: It was found that attitude toward fall (r=.29, p<.001) and patient safety culture (r=.25, p=.002) had a significant positive correlation with fall-prevention behaviors of nurses working in long-term care hospitals. The factors influencing fall-prevention behaviors in participants were clinical career and patient safety culture (β=.21, p=.012), contributing to 19% of the total variance in fall- prevention behaviors. Conclusion: The findings showed that systematic delivery of differentiated fall prevention education is preferred to nurse's clinical career as a private factor to improve fall-prevention behaviors of nurses in long term care hospital. Particularly, it is imperative to conduct periodical and practical fall-prevention education for nurses to prevent career discontinuity. An independent report system and open communication system as well as a scheme that can disseminate patient safety culture in individual departments to implement patient direct nursing are required to encourage patient safety culture in organizations.

파킨슨병 환자의 뇌에서 전기영동시 서행하는 α - Synuclein 발견

최주연(Ju Youn Choi),성영모(Young Mo Sung),박효진(Hyo Jin Park),허은혜(Eun Hye Hur),김지연(Ji Youn Kim),최의열(Eui Yul Choi),박진서(Jin Seu Park),민병례(Byung Re Min),강성만(Seong Man Kang),임향숙(Hyang Shuk Rhim) 한국유전학회 2001 Genes & Genomics Vol.23 No.4

α-Synuclein is a pivotal genetic factor implicated in the pathogenesis of Parkinsons disease(PD), since pathogenicα-synuclein gene mutations occur in rare familial PD and wild-type α-synuclein appears to be a major component of Lewy bodies observed in PD. The main goal of this study was to determine whether the expression patterns of α-synuclein are differentially affected in the brains of PD, compared to normal controls. Here, we showed that new forms of the slowly-migrating α-synuclein were detected from the striatum, a region selectively affected in PD, in the brain of the patients with PD, but not from cerebellum of PD and normal controls. Moreover, these forms of α-synuclein were observed from the right brain that has a unilateral 6-hydroxydopamine lesioned nigrostriatal system in a rat model of PD. The results suggest that the new differential alteration inα-synuclein might be associated with the pathogenesis of PD.

국소마취 하 이비인후과 수술 시 자가진정조절에서 Alfentanil과 Remifentanil의 비교

최주연 ( Ju Youn Choi ),최홍석 ( Hong Seok Choi ),강효석 ( Hyo Seok Kang ),강훈 ( Hoon Kang ) 대한마취과학회 2009 Korean Journal of Anesthesiology Vol.56 No.5

Background: This study was conducted to compare the effects of alfentanil and remifentanil on patient controlled sedation (PCS). Methods: 60 patients scheduled for ear, nose and throat surgery under local anesthesia were randomly allocated to Group P (n=20, propofol 10 mg/ml), Group A (n=20, propofol 10 mg/ml with alfentanil 500 μg/ml) and Group R (n=20, propofol 10 mg/ml with remifentanil 10 μg/ml). Without a basal rate, bolus was set to 2 ml with one minute of lockout time. Results: A total of 57 patients were included in this study. Group A was found to have a lower blood pressure and pulse rate than group R. Group R showed a lower PCS dose upto an OAA/S (Observer`s Assessment of Alertness/Sedation Scale) value of 4 and a higher OAA/S prior to surgery than group P. Group P was found to have a higher blood pressure and respiration rate than Group A. During PCS, patient anxiety was significantly decreased in all groups. In addition, there was no differences among groups in the level of pain during the perioperative period, delivery/attempt ratio, satisfaction of the patient and surgeon, and number of patients required to undergo the same PCS technique again. The frequency of side effects of PCS, which included pain on injection, transient hypertension, hypotension, desaturation and oversedation, were similar among groups. Conclusions: Evaluation of patients who underwent ear, nose and throat surgery under local anesthesia using PCS with propofol alone or alfentanil or remifentanil revealed no differences in safety, effectiveness, complications or satisfaction of the patients and surgeons. (Korean J Anesthesiol 2009;56:507~12)

대장균과 포유류 세포 내에서 parkin의 발현 양상에 관한 연구

남민경,박혜민,최주연,박효진,정광철,강성만,임향숙,Nam Min-Kyung,Park Hye-Min,Choi Ju-Youn,Park Hyo-Jin,Chung Kwang Chul,Kang Seong man,Rhim Hyangshuk 한국생명과학회 2005 생명과학회지 Vol.15 No.6

E3 ligase로 알려진 Parkin은 protein quality control에서 중요한 역할을 할 뿐만 아니라, 이런 quality control system의 이상으로 나타나는 퇴행성 뇌질환에도 밀접한 연관성이었다. 이와 같이 생체의 필수적인 업무를 담당하는 Parkin의 기능을 생화학적 측면에서 연구하기 위해서는 고 순도의 단백질을 다량 정제할 수 있는 시스템이 필요하나, 아직까지 Parkin의 발현 양상과 정제법에 관한 연구가 미흡한 상태이다. 본 연구에서는 pCEX system을 이용하여 Parkin을 대장균에서 overexpression시켜 단일 스텝으로 정제할 수 있는 방법을 정립하였다. 저온의 배양조건에서 0.01 mM의 IPTC로 발현을 유도한 결과 $90\%$ 이상의 순도를 가지는 완전한 크기의 Parkin을 정제할 수 있었다. 또한, 여러 tag을 갖는 Parkin plasmid를 제작하였을 뿐만 아니라, 이들을 HEK293 세포에 transfection하여 Parkin의 발현 양상을 비교 분석하였다. 그 결과 Parkin의 N-말단에 pretense에 민감한 절단 부위가 존재한다는 사실을 확인하였다. 본 연구에서 정립한 Parkin 정제법과 포유류 세포에서 Parkin의 발현 양상에 대한 결과는 Parkin의 기질을 탐색하고,그들이 Parkin의 효소 활성 및 기능에 미치는 영향을 조사하기 위한 다양한 연구에 활용할 수 있을 것이다. Parkin, known as an E3 ubiquitin ligase, has essential role in protein quality control, and its severe dysfunction leads to neurodegenerative disorders. Human Parkin was excessively degraded when expressed in Escherichia coli under the conventional induction condition ($37^{\circ}C$ culture condition with 0.5 mM IPTG). To optimize the induction and culture conditions for recombinant human Parkin and develop a rapid method for the Parkin purification, we expressed Parkin by using PCEX system at the different culture temperatures and IPTC concentrations. The intact Parkin protein was purified to approximately $90\%$ purity with suitable amounts of protein under the optimal culture condition ($25^{\circ}C$E with 0.01 mM IPTG). Additionally, we constructed various parkin plasmids with different tagging systems and investigated their expression patterns in HEK293 cells. We found that the proteolytically sensitive site is localized within a ubiquitin-like domain of Parkin. This study developes a method for generating useful reagents to investigate biochemical properties of Parkin.

지역사회 거주 노인의 낙상 경험 영향요인: 2021년 지역사회건강조사 활용

전혜정(Hye Jung Jun),최주연 (Ju Youn Choi) 한국직업건강간호학회 2023 한국직업건강간호학회지 Vol.32 No.2

Purpose: This study aims to identify the factors that influence the experience of falls among older adults living in the community. Methods: The study participants were 70,887 65-year-olds who participated in the 2021 Community Health Survey. The study employed the Rao-scott x2 test to examine the variation in fall experiences based on the characteristics of the older adults. Multiple logistic regression analysis was conducted to investigate these characteristics’ impact on older adults’ fall experiences. Results: The proportion of subjects in fall experience was 16.6%. The factors influencing the subject's fall experience were sex (odds ratio [OR]=1.47, 95% confidence interval [CI]=1.37~1.57), age (OR=1.48, 95% CI=1.34~1.65), family structure (OR=1.23, 95% CI=1.15~1.31), body mass index (OR=1.13, 95% CI=1.06~1.20), diabetes (OR=1.12, 95% CI=1.06~1.20), depression experiences (OR=1.56, 95% CI=1.42~1.70), stress (OR=1.12, 95% CI=1.05~1.19), subjective health status (OR=1.77, 95% CI=1.63~1.92), life satisfaction (OR=1.57, 95% CI=1.41~1.76), and chewing discomfort (OR=1.29, 95% CI=1.21~1.38). Conclusion: Efforts should be made to effectively educate and develop various programs aimed at reducing falls among older adults. It is essential to emphasize the importance of continuous and active attention to falls in the older adult population.

쌀눈 발아의 최적조건 확립 및 p53 항암 유전자의 발현

피경태(Kyung-Tae Pih),최주연(Ju-Youn Choi),김근철(Keun-Cheol Kim) 한국생명과학회 2015 생명과학회지 Vol.25 No.2

쌀의 쌀눈은 배유에 비해 단백질, 지방, 비타민 B1 등의 영양분을 더 많이 함유하고 있다. 본 연구에서는 식물에서 발현 할 수 있는 p53 플라스미드를 제작하였으며, 여러가지의 배지에서 쌀눈 발아의 최적조건을 확립하였다. p53 플라스미드는 pcDNA-p53 플라스미드에서 p53을 얻어내어 TA 벡터에 subcloning을 한 후 식물 플라스미드인 pGEM-CaMV에 p53을 삽입하여 식물에서 발현 가능한 pGEM-CaMV-p53 플라스미드를 제작하였다. 그리고 효율적인 p53 유전자의 도입을 위하여 최적의 팽윤버퍼의 조성 및 배지의 조건을 확립하였다. 팽윤방법을 통한 유전자의 도입에서 팽윤버퍼는 염과 detergent의 서로 다른 농도로 조성하였지만, 이 버퍼조성 사이에서의 쌀눈 발아율의 유의한 차이는 확인되지 않았다. 또한 팽윤된 쌀눈의 발아를 극대화 시키기 위하여 고체한천배지, 액체배지, 페이퍼 타올 배지의 3가지 조건에 대해서 발아실험을 진행하였다. 그 결과 고체배지에서의 발아율은 70% 정도로 가장 높고 액체배지에서의 발아율은 20% 정도로 가장 낮았으며, 페이퍼 타올배지에서의 발아율은 60% 정도였다. 앞서 확인한 최적의 발아조건에서 쌀눈에 p53 플라스미드를 도입하였고, 그 결과 쌀눈에서의 human p53 발현을 확인 할 수 있었다. 따라서, 팽윤방법에 의한 쌀눈에서의 효율적인 유전자 발현은 쌀의 새로운 부가가치를 창출할 수 있을 것이다. Rice embryo is more abundant than endosperms in nutrients such as proteins, lipids, and vitamin B1. In this study, we constructed p53 plasmid that could be expressed in a plant system, and investigated optimal germination conditions in a variety of media. For construction of p53 plasmid, we performed p53 amplification from pCDNA-p53, subcloned to TA cloning vector, and then reconstructed into pGEM-CaMV plant expression vector. On the other hand, we prepared a variety of imbibition buffers and complete media for efficient germination of the rice embryo. Imbibition buffers prepared with different concentrations of salt or detergent showed no significant effect on germination efficiency. We prepared further culture media, such as solid agar, liquid media, and paper towel to establish the optimal conditions. Rice embryo showed germination rates of more than 70% in the solid medium, more than 60% in the paper towel medium, but less than 25% in liquid media, although germination rate did not differ with varying concentrations of salt and sucrose in culture media. Under the optimal germination conditions, we introduced the p53 plasmid using imbibition method, and finally detected human p53 gene expression in the germinated rice embryo. This method might present a novel, practical approach for evaluating efficient gene expression utilizing imbibition method in rice embryo.

불요 전자파원 분석을 위한 광대역 전계 프로브

최익권 ( Ik Guen Choi ),최주연 ( Ju Youn Choi ),이우태 ( Woo Tae Lee ) 충북대학교 산업과학기술연구소 2006 산업과학기술연구 논문집 Vol.20 No.2

임상연구 : 머리의 자세가 우측 쇄골하 중심정맥도관의 위치에 미치는 영향

류호걸 ( Ho Geol Ryu ),이상진 ( Sang Jin Lee ),권정은 ( Jung Eun Kwon ),최주연 ( Ju Youn Choi ),윤승주 ( Seung Zhoo Yoon ),전윤석 ( Yun Seok Jeon ),박재현 ( Jae Hyon Bahk ) 대한마취과학회 2007 Korean Journal of Anesthesiology Vol.52 No.6

Background: Confirmation of central venous catheter position with chest X-ray is recommended, but frequently omitted in clinical practice. It was suggested that the head posture during right subclavian catheterization affects the incidence of catheter malposition in infants. We evaluated the influence of the head posture on catheter position during right subclavian catheterization in adults. Methods: Two-hundred and seventy four patients scheduled for thoracic or neuro-surgery requiring central venous catheterization were enrolled. Patients were divided into 3 groups depending on the head posture during catheter insertion: the neutral group (n = 109), the turn away group (n = 72), and the turn toward group (n = 93). The catheter position was confirmed with postoperative chest X-ray. Results: Central venous catheterization was failed in 5 patients. There were no differences in the incidence of catheter malposition and the complications among the 3 groups. Conclusions: The head posture during right subclavian catheterization did not affect catheter malposition and immediate complication rates. (Korean J Anesthesiol 2007; 52: 627~9)

ABCB1과 OPRM1 유전적 다형성이 수술 후 통증 조절을 위한 Fentanyl 요구량에 미치는 영향

박창신 ( Chang Shin Park ),박혜진 ( Hye Jin Park ),차영덕 ( Young Deog Cha ),강주희 ( Ju Hee Kang ),최주연 ( Ju Youn Choi ),박소진 ( So Jin Park ),정인준 ( In Jun Chung ) 대한마취과학회 2008 Korean Journal of Anesthesiology Vol.55 No.3