Effect of Special Training Method Based on Breathing Meditation Training on Negative Emotions, Job Burnout and Attention in Operating Room Nurses.

Objective: Nurses working in the operating room face high levels of work stress, leading to an increased prevalence of negative emotions and job burnout. These issues not only affect the well-being of nurses, but may also affect the quality of patient care. Therefore, this study aimed to investigate the effect of a special training method based on breathing meditation on negative emotions, job burnout, attention, and caring ability of operating room nurses. Methods: Taking special training time based on breathing meditation training for nurses in the operating room (June 2022) as the dividing point, operating room nurses with routine training from March 2022 to May 2022 were taken as a pre-training group, and operating room nurses who underwent special training of breathing meditation training from June 2022 to August 2022 were enrolled as a post-training group, special training consisted of breathing meditation training for 8 weeks, once a day, 5 days a week. The same group of nurses (n=35) were enrolled before and after training, and 53 patients in each group were included in the two intervention periods for cooperative study. The scores of nurses' negative emotions [Symptom Checklist (SCL-90), Self-Reporting Questionnaire 20 (SRQ-20)], job burnout scores (emotional consumption, depersonalization and personal accomplishment), attention scores (visual attention, auditory attention and audio-visual combination attention) and caring ability (cognition, courage and patience) before and after training and satisfaction of nursing work were compared between the two groups of patients. Results: The data analysis was performed using SPSS 22.0, with chi-squared tests for categorical data, and t-tests (LSD or paired) for continuous data. The scores of SCL-90 and SRQ-20 of nurses in the post-training group were significantly lower than those in the pre-training group (P < .05). The scores of emotional consumption, depersonalization and, personal accomplishment and total score of job burnout of nurses were significantly lower in a post-training group than those in a pre-training group (P < .05). The visual attention, auditory attention, audio-visual combination attention and total attention score of nurses in the post-training group were significantly higher compared with those in a pre-training group (P < .05). The scores of cognition, courage and patience and total score of the caring ability of nurses in the post-training group were significantly higher than those in the pre-training group (P < .05). The satisfaction of nursing work in post-training group (98.11%) was significantly higher than that in the pre-training group (84.91%) (P < .05). The results indicate that the post-training group of nurses experienced significantly lower levels of emotional distress, reduced job burnout, and improved attention and caring abilities compared to the pre-training group. Additionally, their satisfaction with nursing work significantly increased. These findings suggest that the training program had a positive impact on nurses' mental well-being, job performance, and job satisfaction, which is highly relevant for enhancing the quality of patient care in clinical practice. Conclusion: Our findings are consistent with existing literature on the benefits of meditation and mindfulness training in healthcare Settings. These results have practical implications for both operating room nurses and patient care, indicating that breathing meditation training can be used as an effective tool to improve nurses' mental health and work productivity. Although the study sample was limited, these preliminary results provide valuable directions for future research.

CDK4/6 inhibition suppresses tumour growth and enhances the effect of temozolomide in glioma cells.

In adults, glioma is the most commonly occurring and invasive brain tumour. For malignant gliomas, the current advanced chemotherapy includes TMZ (temozolomide). However, a sizeable number of gliomas are unyielding to TMZ, hence, giving rise to an urgent need for more efficient treatment choices. Here, we report that cyclin-dependent kinases 4 (CDK4) is expressed at significantly high levels in glioma cell lines and tissues. CDK4 overexpression enhances colony formation and proliferation of glioma cells and extends resistance to inhibition of TMZ-mediated cell proliferation and induction of apoptosis. However, CDK4 knockdown impedes colony formation and cell proliferation, and enhances sensitivity of glioma cells to TMZ. The selective inhibition of CDK4/6 impedes glioma cell proliferation and induces apoptotic induction. The selective inhibitors of CDK4/6 may enhance glioma cell sensitivity to TMZ. We further showed the possible role of RB phosphorylation mediated by CDK4 for its oncogenic function in glioma. The growth of glioma xenografts was inhibited in vivo, through combination treatment, and corresponded to enhanced p-RB levels, reduced staining of Ki-67 and enhanced activation of caspase 3. Therefore, CDK4 inhibition may be a favourable strategy for glioma treatment and overcomes TMZ resistance.

Lestaurtinib potentiates TRAIL-induced apoptosis in glioma via CHOP-dependent DR5 induction.

Lestaurtinib, also called CEP-701, is an inhibitor of tyrosine kinase, causes haematological remission in patients with AML possessing FLT3-ITD (FLT3 gene) internal tandem duplication and strongly inhibits tyrosine kinase FLT3. Treatment with lestaurtinib modulates various signalling pathways and leads to cell growth arrest and programmed cell death in several tumour types. However, the effect of lestaurtinib on glioma remains unclear. In this study, we examined lestaurtinib and TRAIL interactions in glioma cells and observed their synergistic activity on glioma cell apoptosis. While U87 and U251 cells showed resistance to TRAIL single treatment, they were sensitized to apoptosis induced by TRAIL in the presence of lestaurtinib because of increased death receptor 5 (DR5) levels through CHOP-dependent manner. We also demonstrated using a xenograft model of mouse that the tumour growth was absolutely suppressed because of the combined treatment compared to TRAIL or lestaurtinib treatment carried out singly. Our findings reveal a potential new strategy to improve antitumour activity induced by TRAIL in glioma cells using lestaurtinib through a mechanism dependent on CHOP.

Highly sensitive curvature sensor based on a multicladding fiber sandwiched dual no-core fibers structure.

In this paper, we present a simple, compact, and highly sensitive optical fiber curvature sensor. It consists of dual no-core fibers for coupling energy from the lead-in single-mode fiber (SMF), and recoupling the energy into the lead-out SMF. The sensing section is constituted by multicladding fiber with a length of 5 cm. In the experiment, the spectrum shows a blueshift, and the energy corresponding to the resonant wavelength shows a cosine series with a bending of the sensing segment. The curvature sensitivity around the wavelength of 1550 nm shows -39.02 nm/m(-1) within the curvature range from 0.3 to 2.14 m(-1). The temperature sensitivity is 78.2 pm/°C in the temperature range of 10 °C-60 °C. It implies the possibility of temperature measurement.