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1.
J Adv Nurs ; 2024 Apr 08.
Artigo em Inglês | MEDLINE | ID: mdl-38586889

RESUMO

AIM: To examine the main effects and interaction effects of outcome expectations (e.g., anticipated satisfactory salary and benefits), nurse identity (a sense of membership in the nursing profession), and information-access efficiency of the electronic medical record system (how the system enables nurses to quickly retrieve the needed information) on nurses' retention. DESIGN: This study uses a cross-sectional survey and adopts proportionate random sampling to recruit a representative sample of nurses of a medical centre in Taiwan. METHODS: This study successfully obtained completed questionnaires from 430 nurses during December 2021 to January 2022. Data are analysed by using hierarchical regressions. RESULTS: Positive outcome expectations and identification as a member in the nursing profession are associated with retention. Information-access efficiency strengthens the link between outcome expectations and retention, while nurse identity weakens this link. CONCLUSION: Outcome expectations can help retain nurses, particularly those who perceive high levels of information-access efficiency and possess weak nurse identity. That is, outcome expectations have a complementary role with nurse identity in retaining nurses. IMPLICATIONS FOR THE PROFESSION: Nurse managers should devise means to build positive outcome expectations for nurses. In addition, either strengthening nurses' identification with the nursing profession or improving the information-access efficiency of the electronic medical system may also help retain nurses. IMPACT: This study examined how to transform outcome expectation to nurse retention, offering nurse managers to devise new means to retain nurses. REPORTING METHOD: STROBE statement was chosen as EQUATOR checklist. PATIENT OR PUBLIC CONTRIBUTION: No patient or public contribution.

2.
Int Nurs Rev ; 2024 Jan 20.
Artigo em Inglês | MEDLINE | ID: mdl-38243697

RESUMO

AIM: To investigate whether education, tenure, being an advanced practice nurse, skill level, and time pressure impact perceptions of "having a place" and, further, turnover intentions. BACKGROUND: Nursing shortages persist worldwide. Nurses' turnover intentions are negatively related to their perceptions of "having a place" (i.e., the feeling that the nursing workplace is their territory). However, the sources of nurses' perceptions of the perception of "having a place" remain unknown. METHODS: Our research employed a cross-sectional and correlational design. This research was conducted at a large-scale hospital in northern Taiwan from December 2021 to January 2022. We used personnel data pertaining to 430 nurses as well as scales for time pressure, "having a place" and turnover intentions to assess nurses' intention to leave their place of employment. The inclusion criteria focused on full-time nurses who worked for the hospital under investigation. Most of our participants were women. The STROBE statement was used as the EQUATOR checklist (supplemental file). RESULTS: "Having a place" was positively related to educational level, tenure, and skill level, while being an advanced practice nurse was negatively associated with perceptions of "having a place," which in turn were negatively related to turnover intention among nurses. CONCLUSION: Our study is the first to examine the antecedents of nurses' perceptions of "having a place," which include education, tenure, and skill level. IMPLICATIONS FOR NURSING POLICY: Nursing policymakers could encourage nurses to pursue higher degrees and update their nursing skills while instilling perceptions of "having a place" in nurses with a brief tenure and advanced practice nurses.

3.
J Med Internet Res ; 25: e37731, 2023 01 09.
Artigo em Inglês | MEDLINE | ID: mdl-36622738

RESUMO

BACKGROUND: Robots are introduced into health care contexts to assist health care professionals. However, we do not know how the benefits and maintenance of robots influence nurse-robot engagement. OBJECTIVE: This study aimed to examine how the benefits and maintenance of robots and nurses' personal innovativeness impact nurses' attitudes to robots and nurse-robot engagement. METHODS: Our study adopted a 2-wave follow-up design. We surveyed 358 registered nurses in operating rooms in a large-scale medical center in Taiwan. The first-wave data were collected from October to November 2019. The second-wave data were collected from December 2019 to February 2020. In total, 344 nurses participated in the first wave. We used telephone to follow up with them and successfully followed-up with 331 nurses in the second wave. RESULTS: Robot benefits are positively related to nurse-robot engagement (ß=.13, P<.05), while robot maintenance requirements are negatively related to nurse-robot engagement (ß=-.15, P<.05). Our structural model fit the data acceptably (comparative fit index=0.96, incremental fit index=0.96, nonnormed fit index=0.95, root mean square error of approximation=0.075). CONCLUSIONS: Our study is the first to examine how the benefits and maintenance requirements of assistive robots influence nurses' engagement with them. We found that the impact of robot benefits on nurse-robot engagement outweighs that of robot maintenance requirements. Hence, robot makers should consider emphasizing design and communication of robot benefits in the health care context.


Assuntos
Robótica , Humanos , Estudos Transversais , Hospitais , Inquéritos e Questionários , Pessoal de Saúde
4.
J Clin Nurs ; 32(1-2): 126-136, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34997641

RESUMO

AIMS AND OBJECTIVES: To test how the three components of professional commitment (i.e. affective, continuance and normative professional commitment) are associated with nurse-reported patient-centred care and care quality. BACKGROUND: Patient-centred care and care quality are the two critical care outcomes. However, no study has yet examined how the three components of professional commitment are related to nurse-reported patient-centred care and care quality, showing a research gap. DESIGN: This study adopted a two-wave design (first wave in 2017 and second wave in 2019), which is known to reduce the possibility of reverse causality, and which was conducted in a large hospital in Northern Taiwan. METHODS: Proportionate random sampling was used. Full-time nurses were surveyed, while nursing students, interns, nurse practitioners and nursing supervisors were excluded. The first wave included 524 nurses, and 438 nurses were retained in the second wave. We used confirmatory factor analysis to verify the psychometric properties of the measures. Structural equation modelling was used to implement hypothesis testing. We used the Professional Commitment Scale of Meyer et al. (Journal of Applied Psychology, 1993, 78, 538), the Patient-Centered Care Scale of Laird-Fick et al. (Patient Education and Counseling, 2011, 84, 90) and the Care Quality Perceptions Scale of Teng et al. (Journal of Nursing Management, 2010, 18, 275). The STROBE statement was chosen as the EQUATOR checklist. RESULTS: Affective professional commitment was positively associated with nurse-reported patient-centred care (ß = .18, p = .002 and .01), which was positively associated with nurse-reported care quality (ß = .85, p < .001). Affective and normative professional commitment were also positively associated with nurse-reported care quality (ß = .17, p < .001). CONCLUSIONS: Our findings offer insights for nursing managers that nurses' affective and normative professional commitment could help upgrade care outcomes. Hospital managers should consider professional commitment as relevant to their workforce. RELEVANCE TO CLINICAL PRACTICE: Nursing managers could publicise reports documenting nurses' significant contributions to public health. This could strengthen affective professional commitment among nurses.


Assuntos
Enfermeiros Administradores , Recursos Humanos de Enfermagem Hospitalar , Humanos , Satisfação no Emprego , Assistência Centrada no Paciente , Psicometria , Inquéritos e Questionários , Recursos Humanos de Enfermagem Hospitalar/psicologia
5.
Aging (Albany NY) ; 14(14): 5925-5945, 2022 Jul 28.
Artigo em Inglês | MEDLINE | ID: mdl-35907209

RESUMO

Young and aging hearts undergo different remodeling post pressure overload, but the regulator that determines responses to pressure overload at different ages remains unknown. With an angiotensin II (Ang II)-induced hypertensive model, miR-21 knockout mice (miR-21-/-) were observed regarding the effects of miR-21 on hypertension-induced cardiac remodeling in young (12 week-old) and old (50 week-old) mice. Although the aged heart represented a more significant hypertrophy and was associated with a higher expression of miR-21, Ang II-induced cardiac hypertrophy was attenuated in miR-21-/- mice. Upon results of cardiac-specific arrays in miR-21-overexpressing cardiomyocytes, we found a significant downregulation of S100a8. In both in vitro and in vivo models, miR-21/S100a8/NF-κB/NFAT pathway was observed to be associated with pressure overload-induced hypertrophic remodeling in aged hearts. To further investigate whether circulating miR-21 could be a biomarker reflecting the aged associated cardiac remodeling, we prospectively collected clinical and echocardiographic information of patients at young (<65 y/o) and old ages (≥65 y/o) with and without hypertension. Among 108 patients, aged subjects presented with a significantly higher expression of circulating miR-21, which was positively correlated with left ventricular wall thickness. Collectively, miR-21 was associated with a prominently hypertrophic response in aged hearts under pressure overload. Further studies should focus on therapeutic potentials of miR-21.


Assuntos
Hipertensão , MicroRNAs , Angiotensina II/farmacologia , Animais , Cardiomegalia/metabolismo , Modelos Animais de Doenças , Humanos , Hipertensão/complicações , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Knockout , MicroRNAs/genética , MicroRNAs/metabolismo , Miócitos Cardíacos/metabolismo , Regulação para Cima , Remodelação Ventricular/genética
6.
J Nurs Manag ; 30(8): 3863-3873, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35862237

RESUMO

AIMS: To examine the relationships among effort ensuring robots' smooth operation (EERSO), time pressure, missed care, and nurses' turnover intention, and how robot performance moderates such relations. BACKGROUND: Robots may reduce nurses' workload but typically still require some effort of nurses for robots' smooth operation. However, the negative impact of EERSO on nurses' workplace outcomes is unknown. METHODS: This study used a two-wave follow-up design. Data were collected in a medical center in Taiwan, with first wave collected in 2019 and second wave collected between 2019 and 2020. A total of 331 participants were followed through the two waves. RESULTS: EERSO is positively linked to missed care and time pressure. Time pressure is also positively linked to missed care and turnover intention. Positive robot performance weakens the positive link between EERSO and time pressure. CONCLUSION: Using robots may help reduce nurses' workload, but it also requires nurses' efforts to maintain robots' continuous operation, that is, EERSO. It may adversely impact nursing professional workplaces. IMPLICATIONS FOR NURSING MANAGEMENT: Nurse managers should reduce nurses' time pressure whilst suggest hospital managers to seek robots that require minimal EERSO.


Assuntos
Enfermeiras e Enfermeiros , Recursos Humanos de Enfermagem Hospitalar , Robótica , Humanos , Estudos Transversais , Atitude do Pessoal de Saúde , Satisfação no Emprego , Inquéritos e Questionários , Intenção , Local de Trabalho , Reorganização de Recursos Humanos
7.
J Nurs Manag ; 30(7): 2927-2936, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35560968

RESUMO

AIMS: The aim of this study is to examine the relationship between psychological ownership of the nursing profession and turnover intention. BACKGROUND: There is a severe shortage of nurses worldwide. Research is needed to understand how nurses' intention to leave hospitals and the nursing profession can be alleviated. METHODS: This study adopted a cross-sectional design and a survey method. Proportionate random sampling was used to ensure sample representativeness. This study surveyed 430 registered nurses in a medical centre in Taiwan between December 2021 and January 2022. We used Turnover Scale and Self-Efficacy Scale and developed Having a Place Scale. RESULTS: Psychological ownership comprises three dimensions: self-efficacy, nurse identity and 'having a place' in the nursing profession. This research is the first to examine how these three dimensions of psychological ownership of the nursing profession are related to the intention to leave a hospital or the nursing profession. Self-efficacy and 'having a place' are negatively related to nurses' intention to leave a hospital (r = -.23 and -.31, p < .001). Nurse identity is negatively related to nurses' intention to leave the nursing profession (r = -.38, p < .001). Intention to leave a hospital is positively related to nurses' intention to leave the profession (r = .76, p < .001). CONCLUSION: The findings provide novel insights for retaining nurses. Nurse managers could use strategies such as including nurses in making workplace decisions and encouraging them to personalize their workspace. IMPLICATIONS FOR NURSING MANAGEMENT: Nurse managers can enhance nurses' self-efficacy and sense of 'having a place' to retain nurses in hospitals, while enhancing nurse identity to retain nurses in the profession.


Assuntos
Enfermeiras e Enfermeiros , Recursos Humanos de Enfermagem Hospitalar , Humanos , Satisfação no Emprego , Estudos Transversais , Propriedade , Recursos Humanos de Enfermagem Hospitalar/psicologia , Reorganização de Recursos Humanos , Inquéritos e Questionários , Intenção
8.
Artigo em Inglês | MEDLINE | ID: mdl-34422079

RESUMO

To obtain a potential commercial product with floral fragrance and physiological properties from Jasminum sambac flower extracts, enfleurage was conducted for a short time and followed by further extraction through supercritical fluid extraction (SFE). The product extracted through SFE (called 100%SFE) exhibited low physiological activity (including 50.7% antityrosinase activity, 38.6%-45.9% radical scavenging activity, and 6,518-15,003 mg/L half-maximal inhibitory concentration [IC50] of antioxidant activity) and an intense jasmine-like flavor but was nontoxic to CCD-996SK and HEMn cells. By contrast, the residue (called RO) exhibited high physiological activity (94.2%-100%), light jasmine-like flavor, and slight cytotoxicity at the concentration of 4,000 mg/L. When 100%SFE and RO were mixed in the ratio 2 : 8, the resultant mixture exhibited 100% antityrosinase activity, >91.3% radical scavenging activity, strong antioxidant activity (IC50: 273-421 mg/L), high total phenolic content (172.15 mg-GAE/g-extract), noncytotoxicity, and moderately intense jasmine-like flavor; it is also economically competitive. The major antioxidants in these extracts were revealed through gas chromatography-mass spectroscopy (GC-MS). Additionally, the composition and quality of fragrance were confirmed through GC-MS and sensory evaluation, respectively. The major fragrance components in the 2 : 8 extract mixture were benzyl acetate, ß-pinene, pentadecyl-2-propyl ester, citronellol, jasminolactone, linalool, farnesol, and jasmone. On the basis of the results, we strongly suggest that the 2 : 8 mixture of extracts from J. sambac flowers can be a powerful antioxidant, whitening, and nontoxic ingredient that can be employed in the pharmaceutical, cosmeceutical, and food industries.

9.
J Adv Nurs ; 77(7): 3083-3092, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33792970

RESUMO

AIMS: To ascertain how professional turnover intention impacts nurse-assessed care outcomes, including patient-centered care and care quality. BACKGROUND: Patient-centered care and care quality are critical to care outcomes. However, we do not know whether care outcomes would be improved by reducing nurses' professional turnover intention. DESIGN: We implemented a two-wave correlational follow-up design. METHODS: This study was conducted in a large-scale general in Taiwan during January and February 2018, and January and February 2019. We successfully obtained responses from 448 nurses in 2018 and subsequently followed up (in 2019). Most were women (97.5%), reflecting the profile of the local nurse population. Structural equation modeling was used to test hypotheses. RESULTS: Our findings indicate that nurses' professional turnover intention is negatively related to nurse-assessed, patient-centered care. Nurses' professional turnover intention is also negatively related to all the five perceptions of nurse-assessed care quality: that is, assurance, reliability, responsiveness, empathy, and tangibles. Moreover, years of working as a nurse is also positively related to nurse-assessed, patient-centered care and all the five perceptions of nurse-assessed care quality. CONCLUSION: This study examined nurses' professional turnover intention as an antecedent of nurse-assessed, patient-centered care and care quality. Our study shows that professional turnover intention may predict care outcomes. Overall, our study suggests that professional turnover intention not only impacts workforce stability but also impacts health-care outcomes. IMPACT: Our findings suggest that reduction of nurses' turnover intentions could benefit care outcomes. Hospital managers should know that nurses' turnover negatively impacts care outcomes.


Assuntos
Intenção , Recursos Humanos de Enfermagem Hospitalar , Atitude do Pessoal de Saúde , Estudos Transversais , Feminino , Humanos , Satisfação no Emprego , Masculino , Reorganização de Recursos Humanos , Reprodutibilidade dos Testes , Inquéritos e Questionários , Taiwan
10.
J Clin Med ; 10(4)2021 Feb 19.
Artigo em Inglês | MEDLINE | ID: mdl-33669722

RESUMO

OBJECTIVE: To investigate factors associated with recognition and delayed isolation of pulmonary tuberculosis (PTB). BACKGROUND: Precise identification of PTB in the emergency department (ED) remains challenging. METHODS: Retrospectively reviewed PTB suspects admitted via the ED were divided into three groups based on the acid-fast bacilli culture report and whether they were isolated initially in the ED or general ward. Factors related to recognition and delayed isolation were statistically compared. RESULTS: Only 24.94% (100/401) of PTB suspects were truly active PTB and 33.77% (51/151) of active PTB were unrecognized in the ED. Weight loss (p = 0.022), absence of dyspnea (p = 0.021), and left upper lobe field (p = 0.024) lesions on chest radiographs were related to truly active PTB. Malignancy (p = 0.015), chronic kidney disease (p = 0.047), absence of a history of PTB (p = 0.013), and lack of right upper lung (p ≤ 0.001) and left upper lung (p = 0.020) lesions were associated with PTB being missed in the ED. CONCLUSIONS: Weight loss, absence of dyspnea, and left upper lobe field lesions on chest radiographs were related to truly active PTB. Malignancy, chronic kidney disease, absence of a history of PTB, and absence of right and/or left upper lung lesions on chest radiography were associated with isolation delay.

11.
J Nurs Scholarsh ; 53(2): 237-245, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33567145

RESUMO

PURPOSE: To examine how robot-enabled focus on professional task engagement and robot-reduced nonprofessional task engagement are related to nurses' professional turnover intention. DESIGN: We adopted a two-wave study design. METHODS: We collected the first wave of data in a large hospital in Taiwan during October and November 2019 and the second wave between December 2019 and February 2020. We used the data collected from 331 nurses who participated in both waves. FINDINGS: We found that robot-enabled focus on professional task engagement is positively related to nurses' overall job satisfaction and perceived health improvement. Robot-reduced nonprofessional task engagement is positively related to nurses' perceived health improvement. Both overall job satisfaction and perceived health improvement are negatively related to nurses' professional turnover intention. CONCLUSIONS: Robots' ability to focus nurses' efforts in professional tasks may help improve nurses' health and overall job satisfaction, and by extension reduce their turnover intention. CLINICAL RELEVANCE: Nurse managers could suggest hospitals introduce robots, particularly those that can share nurses' nonprofessional workload. This, meanwhile, could focus nurses' efforts on professional task engagement.


Assuntos
Atenção , Intenção , Recursos Humanos de Enfermagem Hospitalar/psicologia , Reorganização de Recursos Humanos/estatística & dados numéricos , Robótica , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Recursos Humanos de Enfermagem Hospitalar/estatística & dados numéricos , Taiwan , Adulto Jovem
12.
J Biol Eng ; 15(1): 2, 2021 Jan 06.
Artigo em Inglês | MEDLINE | ID: mdl-33407661

RESUMO

In this study, we constructed recombinant luminescent Escherichia coli with T7, T3, and SP6 promoters inserted between tol and lux genes as toluene biosensors and evaluated their sensitivity, selectivity, and specificity for measuring bioavailable toluene in groundwater and river water. The luminescence intensity of each biosensor depended on temperature, incubation time, ionic strength, and concentrations of toluene and coexisting organic compounds. Toluene induced the highest luminescence intensity in recombinant lux-expressing E. coli with the T7 promoter [T7-lux-E. coli, limit of detection (LOD) = 0.05 µM], followed by that in E. coli with the T3 promoter (T3-lux-E. coli, LOD = 0.2 µM) and SP6 promoter (SP6-lux-E. coli, LOD = 0.5 µM). Luminescence may have been synergistically or antagonistically affected by coexisting organic compounds other than toluene; nevertheless, low concentrations of benzoate and toluene analogs had no such effect. In reproducibility experiments, the biosensors had low relative standard deviation (4.3-5.8%). SP6-lux-E. coli demonstrated high adaptability to environmental interference. T7-lux-E. coli biosensor-with low LOD, wide measurement range (0.05-500 µM), and acceptable deviation (- 14.3 to 9.1%)-is an efficient toluene biosensor. This is the first study evaluating recombinant lux E. coli with different promoters for their potential application in toluene measurement in actual water bodies.

13.
J Clin Nurs ; 30(9-10): 1285-1294, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33497546

RESUMO

AIMS AND OBJECTIVES: To examine how the three dimensions of professional commitment impact professional capabilities improvement and five key dimensions of care quality. BACKGROUND: While professional commitment is known to retain nurses, we do not know how its three dimensions-affective, continuance and normative commitment-formulate five care quality dimensions: assurance, reliability, responsiveness, empathy and tangibles. DESIGN: We used a three-wave, follow-up design to follow a sample of nurse participants. METHODS: We collected responses from 430 nurses who worked for a medical centre in Northern Taiwan during 2017-2019. Most (78.9%) of the respondents had an age between 20-40 years. We used Professional Commitment Scale of Meyer et al. (Journal of Applied Psychology, 1993, 78, 538) and Care Quality Scale of Teng et al. (Journal of Nursing Scholarship, 2010, 41, 301). STROBE statement was chosen as EQUATOR checklist. RESULTS: We found that affective professional commitment is positively related to intention to improve professional capabilities, action to improve professional capabilities and thus to four dimensions of care quality: assurance, reliability, responsiveness and empathy. CONCLUSIONS: Our model explains how three key dimensions of professional commitment contribute to care quality. Our findings support the link between action to improve professional capabilities and dimensions of care quality. RELEVANCE TO CLINICAL PRACTICE: Nursing managers can inform nurses of positive patient feedback, thus enhancing nurses' affective professional commitment, which would likely motivate their devotion to upgrading their professional capabilities, thus further contributing to the quality of the care they provide.


Assuntos
Satisfação no Emprego , Recursos Humanos de Enfermagem Hospitalar , Adulto , Atitude do Pessoal de Saúde , Estudos Transversais , Humanos , Reorganização de Recursos Humanos , Qualidade da Assistência à Saúde , Reprodutibilidade dos Testes , Inquéritos e Questionários , Taiwan , Adulto Jovem
14.
Asian Pac J Cancer Prev ; 21(10): 2817-2821, 2020 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-33112535

RESUMO

OBJECTIVE: Bone marrow fluid (BMF) consists of various components that establishes a microenvironment for cell differentiation and remodeling. MicroRNA-21 (miR-21) levels have recently emerged as novel biomarkers for different diseases. However, the conventional RNU6B (U6), used as the reference for intracellular miRNA, may not be appropriate for the normalization of circulating miRNAs. METHODS: We measured the levels of U6, spiked-in RNA, and miR-21 in the BMF of 13 healthy controls and 37 patients with hematological disorders to investigate the reliability of either U6 or spike-in RNA as an endogenous reference and also to study the correlation between miR-21, hematological disorders and mortality. RESULTS: Notably, the levels of U6 demonstrated a high variability in BMF of healthy controls and patients. In contrast, the levels of spiked-in RNA displayed a significantly higher stability in both cohorts. Compared with controls, the levels of miR-21 were significantly upregulated in BMF of patients with leukemia but not lymphoma. Also, using 21 as the cut-off value of miR-21, it differentiated the mortality of patients with hematologic disorders. CONCLUSIONS: Collectively, using spiked-in RNA as a reference the upregulated miR-21 levels in BMF could be an indicator of the diagnosis of leukemia and a predictor of mortality.


Assuntos
Biomarcadores Tumorais/genética , Medula Óssea/metabolismo , Doenças Hematológicas/diagnóstico , Doenças Hematológicas/mortalidade , MicroRNAs/genética , Idoso , Medula Óssea/patologia , Estudos de Casos e Controles , Estudos de Coortes , Feminino , Seguimentos , Regulação Neoplásica da Expressão Gênica , Doenças Hematológicas/metabolismo , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Taxa de Sobrevida
15.
Artigo em Inglês | MEDLINE | ID: mdl-32784418

RESUMO

This study recruited nine young women who performed a leg raising exercise under six test combinations of three holding postures (lying supine, placing the shanks on a yoga ball, and elevating the legs at 60° against the wall) and two time arrangements (continuous vs. intermittent) for a period of 15 min. The intermittent arrangement included an additional 1-min rest set in the middle of the 15 min test. The participants' shank circumference (SC) reductions and discomfort ratings were measured after each test combination was performed. Results indicated that the most efficient method for SC reduction was the yoga ball (5.4 mm), followed by the supine lying posture (4.6 mm) and wall-supported leg raising (3.1 mm). A significant interaction of posture × time arrangement (p < 0.01) implied that the yoga ball method combined with a 1-min rest produced the greatest SC reduction (6.7 mm). Our results also showed that participants experienced the greatest discomfort (score: 4.96) when performing wall-supported leg raising, compared with both lying supine (score: 1.34) and the yoga ball (score: 1.32). This study suggests that the effectiveness of leg raising as conventionally practiced for eliminating leg fatigue or swelling requires further consideration.


Assuntos
Perna (Membro) , Postura , Yoga , Edema , Terapia por Exercício , Feminino , Humanos
16.
Transgenic Res ; 29(5-6): 511-527, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32776308

RESUMO

The ß-glucosidase, which hydrolyzes the ß(1-4) glucosidic linkage of disaccharides, oligosaccharides and glucose-substituted molecules, has been used in many biotechnological applications. The current commercial source of ß-glucosidase is mainly microbial fermentation. Plants have been developed as bioreactors to produce various kinds of proteins including ß-glucosidase because of the potential low cost. Sulfolobus solfataricus is a thermoacidophilic archaeon that can grow optimally at high temperature, around 80 °C, and pH 2-4. We overexpressed the ß-glucosidase gene from S. solfataricus in transgenic tobacco via Agrobacteria-mediated transformation. Three transgenic tobacco lines with ß-glucosidase gene expression driven by the rbcS promoter were obtained, and the recombinant proteins were accumulated in chloroplasts, endoplasmic reticulum and vacuoles up to 1%, 0.6% and 0.3% of total soluble protein, respectively. By stacking the transgenes via crossing distinct transgenic events, the level of ß-glucosidase in plants could further increase. The plant-expressed ß-glucosidase had optimal activity at 80 °C and pH 5-6. In addition, the plant-expressed ß-glucosidase showed high thermostability; on heat pre-treatment at 80 °C for 2 h, approximately 70% residual activity remained. Furthermore, wind-dried leaf tissues of transgenic plants showed good stability in short-term storage at room temperature, with ß-glucosidase activity of about 80% still remaining after 1 week of storage as compared with fresh leaf. Furthermore, we demonstrated the possibility of using the archaebacterial ß-glucosidase gene as a reporter in plants based on alternative ß-galactosidase activity.


Assuntos
Nicotiana/genética , Plantas Geneticamente Modificadas/genética , Proteínas Recombinantes/metabolismo , Sulfolobus solfataricus/genética , beta-Glucosidase/genética , Proteínas Arqueais/genética , Proteínas Arqueais/metabolismo , Celobiose/metabolismo , Clonagem Molecular , Estabilidade Enzimática , Genes Reporter , Vetores Genéticos , Glucose/metabolismo , Concentração de Íons de Hidrogênio , Regiões Promotoras Genéticas , Proteínas Recombinantes/genética , Sulfolobus solfataricus/enzimologia , Temperatura , Nicotiana/metabolismo , beta-Glucosidase/metabolismo
17.
Int J Cardiol ; 311: 64-70, 2020 07 15.
Artigo em Inglês | MEDLINE | ID: mdl-32005451

RESUMO

BACKGROUND: Anthracycline anticancer drugs such as epirubicin and doxorubicin may induce myocardial dysfunction, leading to poor prognosis. Early detection of minor left ventricular (LV) myocardial dysfunction is important for the prevention of anthracylcine-induced cardiotoxicity. Using layer-specific speckle tracking echocardiography (STE), we investigated the progressive distribution of myocardial dysfunction in both breast cancer patients and an animal toxicity model. METHODS: Patients with preserved LV ejection fraction (LVEF) preparing for epirubicin chemotherapy (N = 125) were prospectively enrolled. Layer-specific STE, including LV longitudinal and circumferential strains on subepicardium and subendocardium, were evaluated at baseline and after the first cycle, third cycle and six months of epirubicin therapy. A decline of LVEF above 10% to <55% at six months was defined as cardiotoxicity. These same strain measures were obtained in doxorubicin-treated rats and the distribution of myocardial fibrosis evaluated. RESULTS: In patients developing cardiotoxicity, LV longitudinal strain on subendocardium (LVLSendo) was significantly reduced after three cycles of therapy despite no significant changes in conventional LV systolic, diastolic parameters as well as LV circumferential strains at that moment. Compared to conventional echocardiographic parameters, LVLSendo was significantly predictive of cardiotoxicity. Declines in LVLSendo were also observed in doxorubicin-treated rats at an early stage. These reductions also predicted significant fibrosis in the subendocardial layer. CONCLUSION: LVLSendo is useful for the early detection of minor cardiac dysfunction during chemotherapy, thereby implicating endocardial involvement in the development of cardiotoxicity.


Assuntos
Neoplasias da Mama , Disfunção Ventricular Esquerda , Animais , Antraciclinas/toxicidade , Antibióticos Antineoplásicos/toxicidade , Neoplasias da Mama/tratamento farmacológico , Cardiotoxicidade/diagnóstico por imagem , Detecção Precoce de Câncer , Humanos , Ratos
18.
J Nurs Manag ; 28(3): 461-470, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31789432

RESUMO

AIMS: This study examined the relationship among upgrades in academic qualifications, practice accreditations, self-efficacy, outcome expectations and nurses' career interest. BACKGROUND: Interest in the nursing career could help retain nurses in the nursing profession. A global nurse shortage warrants further research to understand what drives interest in the nursing career. METHODS: A cross-sectional design was employed. Data were collected in a medical centre in Northern Taiwan between February and March 2017, using employee records and a survey instrument. Proportionate random sampling was used to identify full-time registered nurses, of whom 524 provided useable responses. Employee records were used to measure nurses' upgrades in academic qualifications and practice accreditation. RESULTS: Upgrades in academic qualifications and upgrades in practice accreditation are positively related to outcome expectations. Both self-efficacy and outcome expectations are positively related to career interest. CONCLUSION: The pursuit of upgrades in academic qualifications and practice accreditation could enhance nurses' outcome expectations, thus enhancing their interest in a nursing career. IMPLICATIONS FOR NURSING MANAGEMENT: Hospital managers could develop policies, procedures and programmes to encourage nurses to enhance their academic qualifications or practice accreditation, helping enhance their interest in remaining in the nursing career.


Assuntos
Mobilidade Ocupacional , Escolaridade , Enfermeiras e Enfermeiros/psicologia , Autoeficácia , Acreditação/estatística & dados numéricos , Adulto , Atitude do Pessoal de Saúde , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Motivação , Inquéritos e Questionários , Taiwan
19.
J Adv Nurs ; 75(12): 3577-3587, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31486112

RESUMO

AIMS: Our study investigates the influence of career facilitators and barriers on nurses' improvement of their professional capabilities and their professional turnover intention. BACKGROUND: Reducing nurses' professional turnover intention could help alleviate the global nursing shortage. Nevertheless, little research has addressed how career facilitators and barriers, nurses' improvement of their professional capabilities and professional turnover intention are related, indicating a gap. DESIGN: This study used a cross-sectional design. METHODS: We surveyed 502 out of 2,660 full-time nurses who worked for a medical centre in Taiwan between January-March 2018. Our items were adapted from Cunningham et al. and Teng et al. and had adequate reliability and validity. Structural equation modelling was used to test the study hypotheses. RESULTS: Human capital, social capital, and discrimination were positively related to intention to improve professional capabilities. Moreover, intention to improve professional capabilities was positively related to action to improve professional capabilities, which was negatively related to professional turnover intention. CONCLUSION: Most of the career facilitators and even barriers, boost the improvement of professional capabilities and are useful for retaining nurses in the nursing profession. IMPACT: Findings of this study should have an impact on nursing managers by offering them means to retain nurses, for example, enhancing human capital and social capital among nurses to reduce their turnover intention.


Assuntos
Atitude do Pessoal de Saúde , Mobilidade Ocupacional , Recursos Humanos de Enfermagem/psicologia , Recursos Humanos de Enfermagem/estatística & dados numéricos , Reorganização de Recursos Humanos/estatística & dados numéricos , Adulto , Idoso , Estudos Transversais , Feminino , Humanos , Intenção , Satisfação no Emprego , Masculino , Pessoa de Meia-Idade , Capital Social , Discriminação Social , Inquéritos e Questionários , Taiwan , Adulto Jovem
20.
Acta Cardiol Sin ; 34(6): 511-517, 2018 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-30449992

RESUMO

BACKGROUND: The outcome of pulmonary hypertension (PH) mainly depends on the development of right ventricular (RV) dysfunction, and survival among patients with different etiologies of PH varies. Chronic hypoxia is a major cause of secondary PH, however the mechanisms of its associated RV dysfunction are largely unknown. Herein, we studied the role of microRNA-21 (miR-21) in hypoxia-induced RV dysfunction. METHODS: In this longitudinal, prospective study, we enrolled 41 patients with hypoxia-induced PH. Echocardiography was conducted and circulating miR-21 was measured. The expression of miR-21 was also evaluated in hypoxia-treated human pulmonary microvascular endothelial cells (HPECs) and conditioned media. Through the over-expression of miR-21 in H9C2 cells, we further identified crosstalk between the pulmonary circulation and RV. RESULTS: Among the studied patients, 10 developed RV dysfunction. Notably, the expression of circulating miR-21 was correlated with the severity of RV dysfunction. Likewise, miR-21 was up-regulated in the hypoxia-treated HPECs and its conditioned media in a time-dependent manner. I addition, hypertrophic changes were observed in the hypoxia-treated HPECs. The up-regulation of heart failure-associated markers in H9C2 cells over-expressing miR-21 implied the influence of pulmonary circulatory miR-21 on RV function. CONCLUSIONS: The expression of systemic and pulmonary miR-21 is associated with the severity of RV dysfunction in patients with hypoxia-induced PH.

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