PURPOSE: The purpose of this study was to explore the role of clinical nursing instructors' lived experience in clinical practicum.METHODS: Data were collected from 11 clinical nursing instructors by in-depth interviews. The data were analyzed using content analysis of Downe-Wamboldt (1992).RESULTS: Four themes and twelve subthemes were extracted. 1) Recognizing and conducting the roles of clinical nursing instructor: ‘Helping and providing support for successful clinical practicum’, ‘Coordinating clinical activities in daily practice’, ‘Providing mentoring as an elder in life’; 2) Participating in improving integrative nursing competency: ‘Helping to improve cognitive competency’, ‘Helping to improve functional competency’, ‘Contributing to form desirable professionalism’, ‘Helping to deliberate the nature of nursing’; 3) Experiencing difficulties in performing the role of clinical nursing instructor: ‘Facing with difficulty from institutional limits’, ‘Recognizing difficulty from lack of personal knowledge and experience’; 4) Experiencing value of clinical nursing instructor and accomplishing personal growth: ‘Making efforts to widen personal knowledge and experience’, ‘Developing one's own educational competency’, ‘Making a chance to reflect oneself’.CONCLUSION: Despite the distinctive features of clinical nursing instructors, little is known of the characteristics. The results of this study could be used as a reference to improve the quality of clinical nursing education.
Education ; Education, Nursing ; Humans ; Mentors ; Nursing ; Preceptorship ; Qualitative Research

In several human tumors, signal transducer and activator of transcription 3 (STAT3) and nuclear factor κB (NFκB) are activated and interact; how these STAT3–NFκB complexes are transported to the nucleus is not fully understood. In this study, we found that Rac1 was activated in starved cancer cells and that activated Rac1 coexisted with STAT3 and NFκB. Rac1 knockdown and overexpression of the dominant-negative mutant Rac1N19 inhibited the degradation of IκBα, an inhibitor of NFκB. MG132, an inhibitor of the ubiquitin proteasome pathway, increased the amount of non-phosphorylated IκBα, but not serine-phosphorylated IκBα, indicating that IκBα degradation by Rac1 in starved cancer cells is independent of IκBα serine phosphorylation by IKK. Rac1 knockdown also inhibited the nuclear translocation of STAT3–NFκB complexes, indicating that this translocation requires activated Rac1. We also demonstrated that the mutant STAT3 Y705F could form complexes with NFκB, and these unphosphorylated STAT3–NFκB complexes translocated into the nucleus and upregulated the activity of NFκB in starved cancer cells, suggesting that phosphorylation of STAT3 is not essential for its translocation. To our knowledge, this is the first study demonstrating the crucial role of Rac1 in the function of STAT3–NFκB complexes in starved cancer cells and implies that targeting Rac1 may have future therapeutic significance in cancer therapy.
Humans ; Phosphorylation ; Proteasome Endopeptidase Complex ; Serine ; STAT3 Transcription Factor ; Ubiquitin

PURPOSE: The purpose of this study was to review intervention programs for experienced nurses' job stress and mental health. METHODS: Searches of literature were conducted through four electronic databases (RISS, KISS, PubMed, and CINAHL), focusing on the recent 5-year publications in English or Korean. Thirteen studies were selected for the final analysis and Scottish Intercollegiate Guidelines Network checklist was used to assess methodological rigor and quality. RESULTS: Randomized controlled trials were used in five studies and quasi-experimental designs in eight studies. Cognitive-Behavioral Therapy (CBT) and group approach were the most frequent types of interventions in six and nine studies respectively. On average, the intervention was required for eight weeks and 60~120 minutes per session. After evaluating the effects of CBT, complementary alternative therapy, informative training, simulation training and stimuli control, most of the tested interventions reduced experienced nurses' job stress and improved mental health, but informative training did not. CONCLUSION: Despite the obvious importance of experienced nurses in quality of nursing care, it has not been well studied due to limited numbers of studies with less rigorous design. Study findings provide a basis for developing intervention programs to reduce job stress and improve mental health for experienced nurses.
Checklist ; Mental Health ; Nursing Care ; Simulation Training

The Schedule of Fatigue and Anergy/General Physician (SOFA/GP) was developed to screen for prolonged fatigue in the primary care setting. We aimed to evaluate the reliability and validity of the Korean version of the SOFA/GP (SOFA/GP-K), which is adapted from the original English version. We performed translation and back translation, and after conducting a pilot study, we tested the final version of the questionnaire for its reliability and validity in a Korean primary care setting. Two hundred participants that visited a health examination center in a university hospital completed the survey between September and November 2012. A second survey was performed within 2 weeks of the primary survey to test for reliability. We evaluated concurrent validity between the SOFA/GP-K score, the Fatigue Severity Scale (FSS), and Brief Fatigue Index (BFI) scores. The Spearman correlation coefficient between SOFA/GP-K and FSS was 0.71 and 0.61 between SOFA/GP-K and BFI. Internal consistency of SOFA/GP-K was observed (Cronbach's alpha = 0.82) and construct validity was confirmed by factor analysis. The Kappa scores for test-retest reliability for each survey item were between 0.28 and 0.64. The SOFA/GP-K is a valid and reliable questionnaire for screening fatigue in a primary care setting.
Adult ; Aged ; Fatigue/metabolism/*pathology ; Female ; Humans ; Male ; Middle Aged ; Pilot Projects ; Practice Guidelines as Topic/*standards ; Republic of Korea ; Severity of Illness Index ; Surveys and Questionnaires ; Translating ; Young Adult

The Schedule of Fatigue and Anergy/General Physician (SOFA/GP) was developed to screen for prolonged fatigue in the primary care setting. We aimed to evaluate the reliability and validity of the Korean version of the SOFA/GP (SOFA/GP-K), which is adapted from the original English version. We performed translation and back translation, and after conducting a pilot study, we tested the final version of the questionnaire for its reliability and validity in a Korean primary care setting. Two hundred participants that visited a health examination center in a university hospital completed the survey between September and November 2012. A second survey was performed within 2 weeks of the primary survey to test for reliability. We evaluated concurrent validity between the SOFA/GP-K score, the Fatigue Severity Scale (FSS), and Brief Fatigue Index (BFI) scores. The Spearman correlation coefficient between SOFA/GP-K and FSS was 0.71 and 0.61 between SOFA/GP-K and BFI. Internal consistency of SOFA/GP-K was observed (Cronbach's alpha = 0.82) and construct validity was confirmed by factor analysis. The Kappa scores for test-retest reliability for each survey item were between 0.28 and 0.64. The SOFA/GP-K is a valid and reliable questionnaire for screening fatigue in a primary care setting.
Adult ; Aged ; Fatigue/metabolism/*pathology ; Female ; Humans ; Male ; Middle Aged ; Pilot Projects ; Practice Guidelines as Topic/*standards ; Republic of Korea ; Severity of Illness Index ; Surveys and Questionnaires ; Translating ; Young Adult

Background: Although spinal cord stimulation (SCS) can be a treatment option for intractable postherpetic neuralgia (PHN), obtaining proper stimulation at the thoracic dermatome is difficult. Dorsal root ganglion (DRG) stimulation may be an effective treatment for patients with insufficient efficacy in SCS only.Case: A 54-year-old man with intractable PHN was referred to our clinic. Pain was localized to the distribution of the T1–3 dermatomes. SCS trial was conducted, and lead was placed within the epidural space over the C6–T1 level; however, the stimulation was inadequate for his pain site. Therefore, another lead was placed within the left T1 and T2 DRG for trial, and T1 DRG stimulation provided adequate stimulation. T1 DRG stimulation and SCS could cover the entire pain site with paresthesia, and his pain was decreased by over 50%. Conclusions DRG stimulation combined with SCS may be a good treatment option for intractable thoracic PHN.

Gelatinous transformation of bone marrow is characterized by hypoplasia of fat cells with focal loss of hematopoietic cells and deposition of extracellular gelatinous substances. It is known to be associated with devastating underlying diseases that starve bone marrow. Here, we present a case of a patient whose magnetic resonance (MR) imaging findings of vertebral column were interpreted as metastasis or hematologic malignancy, however, the final diagnosis revealed a gelatinous transformation of bone marrow. This is the first report of gelatinous transformation of bone marrow without evidence of underlying devastating disease.
Adipocytes ; Bone Marrow ; Diagnosis ; Gelatin ; Hematologic Neoplasms ; Humans ; Magnetic Resonance Imaging ; Neoplasm Metastasis ; Positron-Emission Tomography ; Spine

Objective: Subjective cognitive decline (SCD) refers to self-reported memory loss despite normal cognitive function and is considered a preclinical stage of Alzheimer’s disease. This study aimed to examine the mediating effects of depression and Instrumental Activities of Daily Living (IADL) on the association between the scoring of Clinical Dementia Rating Scale-Sum of Boxes (CDR-SB) and Subjective Cognitive Decline Questionnaire (SCD-Q). Methods: A sample of 139 community-dwelling older adults aged 65–79 with normal cognitive function completed the SCD-Q, a comprehensive neuropsychological battery, and functional/psychiatric scales. We conducted 1) a correlation analysis between SCD-Q scores and other variables and 2) a path analysis to examine the mediating effects of depression and IADL on the relationship between CDR-SB and SCD-Q. Results: CDR-SB was found to be indirectly associated with SCD-Q, with depressive symptoms mediating this relationship. However, no direct association was observed between SCD-Q and CDR-SB. Additionally, IADL was not associated with SCD-Q and did not mediate the relationship between CDR-SB and SCD-Q. The model fit was acceptable (minimum discrepancy function by degrees of freedom divided [CMIN/DF]=1.585, root mean square error of approximation [RMSEA]=0.065, comparative fit index [CFI]=0.955, Tucker-Lewis index [TLI]=0.939). Conclusion Our results suggest that SCD-Q is influenced by depressive symptoms, but not by IADL. The role of depressive symptoms as a mediator between CDR-SB and SCD-Q indicates that psychological factors may contribute to the perception of SCD. Therefore, interventions targeting depression may mitigate the concerns associated with SCD and reduce feelings of worse performance compared to others of the same age group.

Cellular replicative senescence is a major contributing factor to aging and to the development and progression of aging-associated diseases. In this study, we sought to determine viral replication efficiency of influenza virus (IFV) and Varicella Zoster Virus (VZV) infection in senescent cells. Primary human bronchial epithelial cells (HBE) or human dermal fibroblasts (HDF) were allowed to undergo numbers of passages to induce replicative senescence. Induction of replicative senescence in cells was validated by positive senescence-associated β-galactosidase staining. Increased susceptibility to both IFV and VZV infection was observed in senescent HBE and HDF cells, respectively, resulting in higher numbers of plaque formation, along with the upregulation of major viral antigen expression than that in the non-senescent cells. Interestingly, mRNA fold induction level of virus-induced type I interferon (IFN) was attenuated by senescence, whereas IFN-mediated antiviral effect remained robust and potent in virus-infected senescent cells. Additionally, we show that a longevity-promoting gene, sirtuin 1 (SIRT1), has antiviral role against influenza virus infection. In conclusion, our data indicate that enhanced viral replication by cellular senescence could be due to senescence-mediated reduction of virus-induced type I IFN expression.
Aging ; Cell Aging* ; Epithelial Cells ; Fibroblasts ; Herpesvirus 3, Human ; Humans ; Influenza, Human ; Interferon Type I ; Orthomyxoviridae ; RNA, Messenger ; Sirtuin 1 ; Up-Regulation

PURPOSE: When murine myeloma cells P3-X63-Ag8.653 (V653) of this model treated with amin opterin, an anticancer drug, they can't synthesize nucleic acid via de novo or salvage pathway and selectively eliminated due to apoptosis. This study was aimed to clone specific known and novel genes preferentially expressed in aminopteirn-treated tumor cell apoptosis. MATERIALS AND METHODS: This study was aimed to clone specific known and novel genes pre ferentially expressed in aminopteirn-treated tumor cell apoptosis by using subtraction-PCR technique. RESULTS: By using this technique 868 clones were obtained. Of these 427 clones were positive with insert DNA. By using cross-hybridization Southern blotting, final 101 clones were selected. All of these genes were sequenced and analyzed by using genebank DNA database. Total 101 clones of genes preferentially expressed in apoptotic tumor cells were classified into 10 groups, which included ribosomal proteins, nuclear proteins, mitdegrees Chondrial proteins, signal transductional proteins, retroviral proteins, cell surface receptor proteins, cell structural proteins, unclassified miscellaneous proteins, and novel genes. Especially, Unknown novel genes preferentially ex pressed in this apoptotic tumor cells included clone numbers S1-63, 1-1, 1-3, 1-16, 1-18, 1-20, 3-33, 3-41, 3-44, 3-48, 3-55, 3-60, 6-17, 6-25, 8-12, 50-7, 50-23, and 100-35. CONCLUSION: It seemed that known and unknown novel genes cloned in this study would con tribute to the future studies regarding apoptosis of tumor cells and cancer treatment therepy.
Aminopterin ; Apoptosis* ; Blotting, Southern ; Clone Cells* ; Cloning, Organism* ; Databases, Nucleic Acid ; DNA ; Mass Screening* ; Membrane Proteins ; Nuclear Proteins ; Ribosomal Proteins ; Zidovudine