Purpose: This conceptual analysis aimed to reveal the “role conflict of physician assistants with nursing licenses in Korea” by defining and organizing its concept. Methods: This study used the conceptual analysis process of Walker and Avant. Results: The role conflict of Korean physician assistant nurses can be defined by the following attributes:“Confusion of identity,” “Psychological burden of work,” “Anxiety and fear of legal responsibility,” “Anxiety about an uncertain future,” “Relative deprivation,” “Sense of neglect,” and a “Lack of sense of belonging.” The antecedents identified were: “unclear work boundaries,” “absence of work guidelines,” “excessive work and poor environment,” “Absence of regulations and administrative regulation,” “Exclusion from unfair treatment and promotion,” “Difficulty measuring job performance,” “Absence of job autonomy,” and “Physician group interest pursuit.” The consequences were: “Decreased job satisfaction,” “Decreased sense of achievement,” “Decreased self-esteem,” “Limited growth,” “Increased turnover intentions,” “Exhaustion of mind and body,” “Career identity crisis,” and “Frustrations.” Conclusion This study provides basic data for constructing a theory concerning role conflict among Korean dedicated nurses and promotes the development of measurement tools. Furthermore, it meaningfully presents both theoretical grounds for reducing the role conflict of dedicated nurses and evidence for legalization.

Purpose: This conceptual analysis aimed to reveal the “role conflict of physician assistants with nursing licenses in Korea” by defining and organizing its concept. Methods: This study used the conceptual analysis process of Walker and Avant. Results: The role conflict of Korean physician assistant nurses can be defined by the following attributes:“Confusion of identity,” “Psychological burden of work,” “Anxiety and fear of legal responsibility,” “Anxiety about an uncertain future,” “Relative deprivation,” “Sense of neglect,” and a “Lack of sense of belonging.” The antecedents identified were: “unclear work boundaries,” “absence of work guidelines,” “excessive work and poor environment,” “Absence of regulations and administrative regulation,” “Exclusion from unfair treatment and promotion,” “Difficulty measuring job performance,” “Absence of job autonomy,” and “Physician group interest pursuit.” The consequences were: “Decreased job satisfaction,” “Decreased sense of achievement,” “Decreased self-esteem,” “Limited growth,” “Increased turnover intentions,” “Exhaustion of mind and body,” “Career identity crisis,” and “Frustrations.” Conclusion This study provides basic data for constructing a theory concerning role conflict among Korean dedicated nurses and promotes the development of measurement tools. Furthermore, it meaningfully presents both theoretical grounds for reducing the role conflict of dedicated nurses and evidence for legalization.

Purpose: This conceptual analysis aimed to reveal the “role conflict of physician assistants with nursing licenses in Korea” by defining and organizing its concept. Methods: This study used the conceptual analysis process of Walker and Avant. Results: The role conflict of Korean physician assistant nurses can be defined by the following attributes:“Confusion of identity,” “Psychological burden of work,” “Anxiety and fear of legal responsibility,” “Anxiety about an uncertain future,” “Relative deprivation,” “Sense of neglect,” and a “Lack of sense of belonging.” The antecedents identified were: “unclear work boundaries,” “absence of work guidelines,” “excessive work and poor environment,” “Absence of regulations and administrative regulation,” “Exclusion from unfair treatment and promotion,” “Difficulty measuring job performance,” “Absence of job autonomy,” and “Physician group interest pursuit.” The consequences were: “Decreased job satisfaction,” “Decreased sense of achievement,” “Decreased self-esteem,” “Limited growth,” “Increased turnover intentions,” “Exhaustion of mind and body,” “Career identity crisis,” and “Frustrations.” Conclusion This study provides basic data for constructing a theory concerning role conflict among Korean dedicated nurses and promotes the development of measurement tools. Furthermore, it meaningfully presents both theoretical grounds for reducing the role conflict of dedicated nurses and evidence for legalization.

Purpose: This conceptual analysis aimed to reveal the “role conflict of physician assistants with nursing licenses in Korea” by defining and organizing its concept. Methods: This study used the conceptual analysis process of Walker and Avant. Results: The role conflict of Korean physician assistant nurses can be defined by the following attributes:“Confusion of identity,” “Psychological burden of work,” “Anxiety and fear of legal responsibility,” “Anxiety about an uncertain future,” “Relative deprivation,” “Sense of neglect,” and a “Lack of sense of belonging.” The antecedents identified were: “unclear work boundaries,” “absence of work guidelines,” “excessive work and poor environment,” “Absence of regulations and administrative regulation,” “Exclusion from unfair treatment and promotion,” “Difficulty measuring job performance,” “Absence of job autonomy,” and “Physician group interest pursuit.” The consequences were: “Decreased job satisfaction,” “Decreased sense of achievement,” “Decreased self-esteem,” “Limited growth,” “Increased turnover intentions,” “Exhaustion of mind and body,” “Career identity crisis,” and “Frustrations.” Conclusion This study provides basic data for constructing a theory concerning role conflict among Korean dedicated nurses and promotes the development of measurement tools. Furthermore, it meaningfully presents both theoretical grounds for reducing the role conflict of dedicated nurses and evidence for legalization.

A paraffinoma is a type of inflammatory lipogranuloma that develops after the injection of an artificial mineral oil, such as paraffin or silicon, into the foreskin or the subcutaneous tissue of the penis for the purpose of penis enlargement, cosmetics, or prosthesis. The authors experienced a case of macro-paraffinoma associated with sexual dysfunction, voiding dysfunction, and pain caused by a buried glans penis after a paraffin injection for penis enlargement that had been performed 35 years previously. Herein, this case is presented with a literature review.
Foreskin ; Granuloma* ; Male ; Mineral Oil ; Oils ; Paraffin* ; Penis ; Prostheses and Implants ; Silicon ; Subcutaneous Tissue

BACKGROUND/AIMS: It is essential to develop an in vitro culture model of primary hepatocytes for the study of hepatocellular function and the pathogenesis of hepatitis C virus (HCV) infection. In this study, we have established the immortalized primary human hepatocyte (IPHH) and performed in vitro culture of HCV derived from human patient. METHODS: Primary human hepatocytes were isolated from surgically resected liver tissue and then were immortalized by transfection with the SV40 large T antigen. The characterization of the IPHH during culture was analyzed by immunocytochemistry, RT-PCR, Western blot, ELISA, and soft agar assay. Next, sera and/or liver tissue homogenates from surgically resected liver tissues of patients with HCV infection were inoculated for the culture of HCV in IPHH. After HCV RNA extraction from IPHH and culture media, positive or negative stranded HCV RNA was examined by specific nest RT-PCR. RESULTS: IPHH expressed liver-associated proteins but did not express alpha-fetoprotein. Also IPHH showed ammonia removal activity. With regard to its malignant potential, colony formation in soft agar assay was not observed. Next, positive and negative stranded HCV RNAs in IPHH infected with patient's sera plus liver tissue homogenates were clearly detected whereas those in IPHH infected with only patient's sera were not detected. CONCLUSIONS: These results demonstrated the phenotypic characteristics of IPHH and the feasibility in vitro culture system of HCV infected human samples. This system might be useful for study of pathogenesis of HCV infection or hepatocyte-based applications.
Antigens, Viral, Tumor/genetics ; Base Sequence ; Carcinogenicity Tests ; Cell Culture Techniques ; Cells, Cultured ; Cells, Immobilized ; Hepacivirus/isolation & purification/*physiology ; Hepatocytes/metabolism/physiology/*virology ; Humans ; Liver Function Tests ; Models, Biological ; RNA Probes ; RNA, Viral/analysis ; Reverse Transcriptase Polymerase Chain Reaction

BACKGROUND AND OBJECTIVES: In our previous study, we found that the gene transfer of a potent derivative of cartilage oligomeric matrix protein Angiopoietin-1 (COMP-Ang-1) substantially prevented hypertension, microvascular rarefaction, and target organ damage in spontaneously hypertensive rats (SHRs). The purpose of the present study was to examine the role of nitric oxide (NO) in the therapeutic effects observed after COMP-Ang-1 gene transfer. MATERIALS AND METHODS: To exclude the NO-mediated effects in COMP-Ang-1 gene therapy, the SHRs were treated with an NO synthase (NOS) inhibitor, Nw-nitro-L-arginine methyl ester (L-NAME) before the electrophoretic gene transfer. RESULTS: The pretreatment with L-NAME induced a severe and sustained increase in systolic blood pressure (BP) in a LacZ plasmid transferred control SHR. However, the electrophoretic transfer of a COMP-Ang-1 plasmid instead of LacZ plasmid in L-NAME-pretreated SHRs substantially blocked the development of hypertension without any significant difference in comparison with L-NAME-untreated COMP-Ang-1 plasmid transferred groups. In addition, the COMP-Ang-1 plasmid transfer substantially attenuated microvascular rarefaction and arteriole remodeling in the heart and kidney, which might account for the mild histological alterations observed in the COMP-Ang-1 plasmid transferred group, in contrast to the severe fibrosis and necrosis seen in the LacZ plasmid controls. CONCLUSION: These therapeutic outcomes of COMP-Ang-1 gene transfer even in NOS inhibited SHRs suggested that the antihypertensive effect of COMP-Ang-1 was not merely secondary to NO-mediated vasorelaxation, but it may be associated with its ability to protect the vascular endothelium probably via an NO-independent mechanism which serves to attenuate microvascular rarefaction and target organ damage, and also to prevent hypertension by reducing peripheral vascular resistance.
Angiopoietin-1 ; Arterioles ; Blood Pressure ; Cartilage ; Endothelium ; Endothelium, Vascular ; Extracellular Matrix Proteins ; Fibrosis ; Genetic Therapy ; Glycoproteins ; Heart ; Hypertension ; Kidney ; Necrosis ; NG-Nitroarginine Methyl Ester ; Nitric Oxide ; Nitric Oxide Synthase ; Plasmids ; Rats, Inbred SHR ; Vascular Resistance ; Vasodilation

We examined the precision, accuracy, and capability of detecting changes of Dual-Energy X-ray Absorptiometry (DXA) for the measurements of total-body weight (TBW), total-body fat weight (TBFW), and total-body lean weight (TBLW) in an 8-week follow-up study of rats. Twenty male rats (4-week) were divided into 2 diet groups. For 8 weeks, we measured body composition (TBW, TBFW, TBLW) by DXA and TBW by an electronic scale once a week. In week 8, we measured body composition 5 times by DXA and TBFW by dissecting experiment (EXP) of euthanized rats (12-week). Total-body fat ratio (TBFR) was defined as TBFW/(TBFW+TBLW). The precision of DXA was evaluated by measuring the coefficient of variation (CV) and accuracy was evaluated by comparing DXA-derived data with EXP data. The capability of detecting changes of DXA in follow-up study was verified by analyzing the trend of DXA-derived values over the 8 weeks. For TBW, TBFW, TBLW of DXA, CVs were 0.02 ± 0.01, 0.10 ± 0.05, 0.03 ± 0.02 and errors were − 6.996 ± 3.429 (r = 0.999), + 14.729 ± 3.663 (r = 0.982), − 21.725 ± 4.223 (r = 0.991), respectively. Prediction models were [EXP TBW = − 31.767 + 1.085 (DXA TBW), R2 = 0.998, root mean square error (RMSE) = 1.842] and [EXP TBFR = − 0.056 + 1.177 (DXA TBFR), R2 = 0.948, RMSE = 0.007]. Over 8 weeks, DXA TBW and DXA TBLW steadily increased, DXA TBFW steadily increased followed by saturation or declination, difference of DXA TBFW between 2 diet groups steadily increased. In conclusion, our study verified that DXA (iNSiGHT VET DXA, OsteoSys, Korea) is accurate and precise enough to measure body composition of rats. Additionally, we confirmed the possibility that DXA could be used for the long-term follow-up studies.
Absorptiometry, Photon ; Animals ; Body Composition ; Diet ; Diet, High-Fat ; Follow-Up Studies ; Humans ; Male ; Obesity ; Rats

PURPOSE: The purpose of this study was to examine the effect of post-operative exercise on body composition, psychological factors, time to flatus and length of hospital stay in stage 1~3 colorectal cancer patients. METHODS: A total of 35 post surgery patients were recruited and randomly assigned to the exercise or controlled group. Participants in the exercise group exercised twice a day while participants in the control group followed the clinical pathways (CP). RESULTS: A total of 25 participants completed the trial. Post-operative exercise resulted in a clinically meaningful, but statistically insignificant reduction in body weight (Exercise: -1.10±1.63 kg vs. CP: -0.63±1.16 kg; p=.111), fat mass (Exercise: -1.43±0.95 kg vs. CP: 0.64±4.29 kg; p=.100). When participants' body composition were compared to their baseline values at the baseline, only the exercise group experienced a significant reduction in body weight, body mass index (BMI) and fat mass. In addition, post-operative exercise significantly improved health related quality of life (Exercise: 2.27±2.08 vs CP: -12.82±22.47; p=.008). However, there was no difference in time to flatus and the length of hospital stay between groups. CONCLUSION: The current pilot study suggests that the post-operative exercise program was safe and produced for health related quality of life improvements in colorectal cancer patients.
Body Composition ; Body Mass Index ; Body Weight ; Colorectal Neoplasms* ; Critical Pathways ; Flatulence ; Humans ; Length of Stay ; Pilot Projects ; Psychology ; Quality of Life

BACKGROUND/AIMS: The investigation of a specific tumor marker for hepatocellular carcinoma (HCC) is needed to examine the carcinogenesis and to select the patients for treatment options. The aim of this study was to find the genes related to HCC. We also examined the expression level of these genes in cancer cell lines and tissue specimens. METHODS: Three pairs of HCC tissue and non-neoplastic hepatic tissue around the HCC were collected from three patients who underwent resection for HCC. Differential display reverse transcriptase-PCR (DD RT-PCR) using GeneFishing (TM) PCR was used to detect the differences in the gene expression between in HCC tissue and non-neoplatic tissue. Up- or down-regulated genes in HCC tissue were identified through BLAST searches after cloning and sequencing assays. Real-time RT-PCR assay was employed to detect the expression rate in 11 HCC tissues and human cancer cell lines. RESULTS: Differentially expressed 21 genes were identified, and they were classified as genes involved in protein metabolism, ubiquitin-dependent protein catabolism, carbohydrate metabolism, lipid metabolism, DNA repair, and inflammatory response. CONCLUSIONS: We identified differentially expressed genes in HCC, and these genes may play an important role in the study of hepatocarcinogenesis, development of biomarker, and target therapy for HCC.
Carcinoma, Hepatocellular/diagnosis/genetics/*metabolism ; Cell Line, Tumor ; Down-Regulation ; Gene Expression Regulation, Neoplastic ; Humans ; Liver Neoplasms/diagnosis/genetics/*metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Sequence Analysis, DNA ; Tumor Markers, Biological/genetics/*metabolism ; Up-Regulation