Predicting the risk of primary Sjögren's syndrome with key N7-methylguanosine-related genes: A novel XGBoost model.

Objectives: N7-methylguanosine (m7G) plays a crucial role in mRNA metabolism and other biological processes. However, its regulators' function in Primary Sjögren's Syndrome (PSS) remains enigmatic. Methods: We screened five key m7G-related genes across multiple datasets, leveraging statistical and machine learning computations. Based on these genes, we developed a prediction model employing the extreme gradient boosting decision tree (XGBoost) method to assess PSS risk. Immune infiltration in PSS samples was analyzed using the ssGSEA method, revealing the immune landscape of PSS patients. Results: The XGBoost model exhibited high accuracy, AUC, sensitivity, and specificity in both training, test sets and extra-test set. The decision curve confirmed its clinical utility. Our findings suggest that m7G methylation might contribute to PSS pathogenesis through immune modulation. Conclusions: m7G regulators play an important role in the development of PSS. Our study of m7G-realted genes may inform future immunotherapy strategies for PSS.

Low Grip Strength and Increased Mortality Hazard among Middle-Aged and Older Chinese Adults with Chronic Diseases.

Objective: This study aims to evaluate the association between lower grip strength and mortality hazard. Methods: We selected 10,280 adults aged 45 to 96 years old from the China Health and Retirement Longitudinal Study and used multivariate Cox proportional hazard models to assess the association of grip strength with mortality hazard. In addition, we explored the possibility of a nonlinear relationship using a 4-knot restricted spline regression. Results: We found that elevated grip strength was associated with lower mortality up to a certain threshold. The baseline quartile values of grip strength were 30, 37, and 44 kg for males and 25, 30, and 35 kg for females. After adjusting for confounders, with category 1 as the reference group, the adjusted HRs were 0.58 (0.42-0.79) in males and 0.70 (0.48-0.99) in females (category 4). We also found a linear association between grip strength values and all-cause death risk (males, P = 0.274; females, P = 0.883) using restricted spline regression. For males with a grip strength < 37 kg and females with a grip strength < 30 kg, grip strength and death were negatively associated. Conclusion: Grip strength below a sex-specific threshold is inversely associated with mortality hazard among middle-aged and older Chinese adults with chronic diseases.

Effectiveness of nursing interventions on the sexual quality of life of patients with breast cancer: A systematic review and meta-analysis.

BACKGROUND: Although many studies have reported the effectiveness of nursing interventions on the sexual quality of life of patients with breast cancer, the results have not been synthesized. This study aims to assess the effectiveness of nursing interventions on the sexual quality of life of patients with breast cancer. REVIEW METHODS: A comprehensive search was conducted in 11 databases from inception to October 7, 2021. Studies evaluating the effects of nursing interventions on sexual quality of life were included. Study selection, data extraction, and risk of bias assessment were performed by two independent reviewers. RESULTS: This review pooled 38 studies with 3,664 participants. Meta-analysis results showed that nursing interventions significantly improved sexual quality of life, including sexual function (standardized mean difference [SMD] = 0.98, 95% confidence interval [CI] = [0.60-1.37], P < 0.001) and sexual satisfaction (SMD = 0.99, 95% CI = [0.41-1.57], P < 0.001). In addition, depression (SMD = -1.16, 95% CI = [-2.08--0.24], P = 0.01) and general quality of life (SMD = 0.20, 95% CI = [0.08-0.33], P = 0.002) were significantly improved, but body image (SMD = 0.17, 95% CI = [-0.08-0.41], P = 0.19) and anxiety (SMD = -0.45, 95% CI = [-0.93-0.02], P = 0.06) did not significantly improve. Subgroup analysis showed that nursing interventions had a stronger long-term effect on sexual function (SMD = 1.15, 95% CI = [0.51-1.80], P = P < 0.001) and was more effective in younger patients (SMD = 1.43, 95% CI = [0.63-2.23], P = P < 0.001). Nursing interventions showed a statistically significant short-term effect on sexual satisfaction (SMD = 1.32, 95% CI = [0.44-2.20], P = 0.003) and a significant effect in older patients (SMD = 1.27, 95% CI = [0.46-2.08], P = 0.002). CONCLUSIONS: Nursing intervention may be an effective way to improve the sexual quality of life of patients with breast cancer. Nursing interventions had a stronger long-term effect on sexual function, and the group with the strongest effect is the younger patients. Nursing interventions showed a significant short-term effect on sexual satisfaction, and older patients had significant improvement in sexual satisfaction.