Microstructures and Corrosion Properties of Wire Arc Additive Manufactured Copper-Nickel Alloys.

The 70/30 copper-nickel alloy is used mainly in critical parts with more demanding conditions in marine settings. There is a need for innovative methods that offer fast production and cost-effectiveness in order to supplement current copper-nickel alloy manufacturing processes. In this study, we employ wire arc additive manufacturing (WAAM) to fabricate the 70/30 copper-nickel alloy. The as-built microstructure is characterized by columnar grains with prominent dendrites and chemical segregation in the inter-dendritic area. The aspect ratio of the columnar grain increases with increasing travel speed (TS) at the same wire feed speed (WFS). This is in contrast with the equiaxed grain structure, with a more random orientation, of the conventional sample. The sample built with a WFS of 8 m/min, TS of 1000 mm/min, and a track distance of 3.85 mm exhibits superior corrosion properties in the 3.5 wt% NaCl solution when compared with the conventional sample, as evidenced by a higher film resistance and breakdown potential, along with a lower passive current density of the WAAM sample. The corrosion morphology reveals the critical roles played by the nickel element that is unevenly distributed between the dendrite core and inter-dendritic area.

Clinical evidence of three traditional Chinese medicine drugs and three herbal formulas for COVID-19: A systematic review and meta-analysis of the Chinese population.

BACKGROUND: The coronavirus disease 2019 (COVID-19) continues to spread worldwide. Integrated Chinese and Western medicine have had some successes in treating COVID-19. OBJECTIVE: This study aims to evaluate the efficacy and safety of three traditional Chinese medicine drugs and three herbal formulas (3-drugs-3-formulas) in patients with COVID-19. SEARCH STRATEGY: Relevant studies were identified from 12 electronic databases searched from their establishment to April 7, 2022. INCLUSION CRITERIA: Randomized controlled trials (RCTs), non-RCTs and cohort studies that evaluated the effects of 3-drugs-3-formulas for COVID-19. The treatment group was treated with one of the 3-drugs-3-formulas plus conventional treatment. The control group was treated with conventional treatment. DATA EXTRACTION AND ANALYSIS: Two evaluators screened and selected literature independently, then extracted basic information and assessed risk of bias. The treatment outcome measures were duration of main symptoms, hospitalization time, aggravation rate and mortality. RevMan 5.4 was used to analyze the pooled results reported as mean difference (MD) with 95% confidence interval (CI) for continuous data and risk ratio (RR) with 95% CI for dichotomous data. RESULTS: Forty-one studies with a total of 13,260 participants were identified. Our analysis suggests that compared with conventional treatment, the combination of 3-drugs-3-formulas might shorten duration of fever (MD = -1.39; 95% CI: -2.19 to -0.59; P < 0.05), cough (MD = -1.57; 95% CI: -2.16 to -0.98; P < 0.05) and fatigue (MD = -1.36; 95% CI: -2.21 to -0.51; P < 0.05), decrease length of hospital stay (MD = -2.62; 95% CI -3.52 to -1.72; P < 0.05), the time for nucleic acid conversion (MD = -2.92; 95% CI: -4.26 to -1.59; P < 0.05), aggravation rate (RR = 0.49; 95% CI: 0.38 to 0.64; P < 0.05) and mortality (RR = 0.34; 95% CI: 0.19 to 0.62; P < 0.05), and increase the recovery rate of chest computerized tomography manifestations (RR = 1.22; 95% CI: 1.14 to 1.3; P < 0.05) and total effectiveness (RR = 1.24; 95% CI: 1.09 to 1.42; P < 0.05). CONCLUSION: The 3-drugs-3-formulas can play an active role in treating all stages of COVID-19. No severe adverse events related to 3-drugs-3-formulas were observed. Hence, 3-drugs-3-formulas combined with conventional therapies have effective therapeutic value for COVID-19 patients. Further long-term high-quality studies are essential to demonstrate the clinical benefits of each formula. Please cite this article as: You LZ, Dai QQ, Zhong XY, Yu DD, Cui HR, Kong YF, Zhao MZ, Zhang XY, Xu QQ, Guan ZY, Wei XX, Zhang XC, Han SJ, Liu WJ, Chen Z, Zhang XY, Zhao C, Jin YH, Shang HC. Clinical evidence of three traditional Chinese medicine drugs and three herbal formulas for COVID-19: A systematic review and meta-analysis of the Chinese population. J Integr Med. 2023; 21(5): 441-454.

Network pharmacology and molecular docking prediction, combined with experimental validation to explore the potential mechanism of Qishen Yiqi pills against HF-related cognitive dysfunction.

ETHNOPHARMACOLOGICAL RELEVANCE: Qishen Yiqi Pills (QSYQ) is a classical herbal formula for treating heart failure (HF) and has potential efficacy in improving cognitive function. The latter is one of the most common complications in patients with HF. However, there is no study on treating HF-related cognitive dysfunction by QSYQ. AIMS OF THE STUDY: The study aims to investigate the effect and mechanism of QSYQ on treating post-HF cognitive dysfunction based on network pharmacology and experimental validation. MATERIALS AND METHODS: Network pharmacology analysis and molecular docking was used to explore endogenous targets of QSYQ in treating cognitive impairment. Ligation of the anterior descending branch of the left coronary artery and sleep deprivation (SD) were used to induce HF-related cognitive dysfunction in rats. The efficacy and potential signal targets of QSYQ were then verified by functional evaluation, pathological staining, and molecular biology experiments. RESULTS: 384 common targets were identified by intersecting QSYQ 'compound targets' and 'cognitive dysfunction' disease targets. KEGG analysis showed these targets were enriched to the cAMP signal, and four marks responsible for regulating the cAMP signal were successfully docked with core compounds of QSYQ. Animal experiments demonstrated that QSYQ significantly ameliorated cardiac function and cognitive function in rats suffering from HF and SD, inhibited the reduction of cAMP and BDNF content, reversed the upregulation of PDE4 and downregulation of CREB, suppressed the loss of neurons, and restored the expression of synaptic protein PSD95 in the hippocampus. CONCLUSION: This study clarified that QSYQ could improve HF-related cognitive dysfunction by modulating cAMP-CREB-BDNF signals. It provides a rich basis for the potential mechanism of QSYQ in the treatment of heart failure with cognitive dysfunction.

Effectiveness of mind-body exercise via Baduanjin on physical and psychological outcomes in patients with pulmonary ground-glass nodules: A non-randomized controlled pilot study.

BACKGROUND: With the increasing incidence and mortality of lung cancer, ground-glass nodules (GGNs) have become an ongoing public health concern. In clinical practice, the physical and psychological distress of GGN patients is easy to overlook during the follow-up after diagnosis. Such patients typically have limited medical options and few of these options involve mind-body exercises. OBJECTIVE: The purpose of this pilot study was to explore the effectiveness of the mind-body exercise Baduanjin on physical and psychological outcomes among GGN patients. DESIGN: We conducted a prospective, non-randomized, controlled, assessor-blinded trial (ClinicalTrials.gov: NCT03420885). SETTING: This trial was conducted at three medical sites, both located in Shanghai, China, between April 2017 and January 2020. PARTICIPANTS: Patients with GGN. INTERVENTION: Sixty GGN participants were divided into a health education control group only receiving health education (n = 30) and a Baduanjin intervention group receiving health education plus a Baduanjin training program (n = 30). Both groups were treated for 16 weeks. OUTCOME MEASUREMENTS: Outcomes were assessed at baseline and week 16. The primary outcomes included pulmonary function (FVC, FVC%, FEV1, FEV1/FVC, PEF) and psychological condition (SAS score, SDS score). The secondary outcome was quality of life (SF-36). RESULTS: Compared with the health education control group, the Baduanjin intervention group had significant improvements in pulmonary function (FVC, FVC%, FEV1), psychological outcomes (SAS score, SDS score), and quality of life (SF-36). The significant differences in pre-intervention and post-intervention between groups were as follows: FVC (MD = 0.21, 95%CI: 0.10 to 0.33, P = 0), FVC% (MD = 6.90, 95%CI: 3.10 to 10.70, P = 0.001), FEV1 (MD = 0.18, 95%CI: 0.07 to 0.29, P = 0.001); SAS score (MD = -4.90, 95%CI: -8.28 to -1.52, P = 0.005), SDS score (MD = -5.83, 95%CI: -9.46 to -2.21, P = 0.002); physical component summary (PCS) of SF-36 (MD = 5.03, 95%CI: 2.54 to 7.51, P = 0), mental component summary (MCS) of SF-36 (MD = 5.78, 95%CI: 2.64 to 8.92, P = 0.001). Linear regression analysis was performed to study the influence of confounder variables on the improvements of primary outcomes, and no significant change was found. Moreover, Pearson correlation coefficient analysis demonstrated that ameliorations in lung function (FVC, FVC%, FEV1, FEV1/FVC, and PEF) were significantly associated with a decrease in anxious symptoms and depressive symptoms. CONCLUSION: GGN patients in the Baduanjin intervention group showed greater benefits in pulmonary function and psychological outcomes than those in the health education control group, and the effectiveness was stable. The findings support Baduanjin as an effective, safe, enjoyable, and promising complementary intervention for management of GGN in patients with physical and psychological distress.

Genetically predicted iron status was associated with the risk of prostate cancer.

Introduction: Observational studies have reported a relationship between iron status and the risk of prostate cancer. However, it remains uncertain whether the association is causal or due to confounding or reverse causality. To further clarify the underlying causal relationship, we conducted a Mendelian randomization (MR) analysis. Methods: We selected three genetic variants (rs1800562, rs1799945, and rs855791) closely correlated with four iron status biomarkers (serum iron, log-transformed ferritin, transferrin saturation, and transferrin) as instrumental variables. Summary statistics for prostate cancer were obtained from the Prostate Cancer Association Group to Investigate Cancer Associated Alterations in the Genome consortium including 79,148 cases and 61,106 controls of European ancestry. The inverse-variance weighted (IVW) method was conducted primarily to estimate the association of genetically predicted iron status and the risk of prostate cancer, supplemented with simple-median, weighted-median and maximum-likelihood methods as sensitivity analysis. MR-Egger regression was used to detect directional pleiotropy. We also conducted a meta-analysis of observational studies to assess the associations between iron status and the risk of prostate cancer. Results: Genetically predicted increased iron status was associated with the decreased risk of prostate cancer, with odds ratio of 0.91 [95% confidence interval (CI): 0.84, 0.99; P = 0.035] for serum iron, 0.81 (95% CI: 0.65, 1.00; P = 0.046) for log- transformed ferritin, 0.94 (95% CI: 0.88, 0.99; P = 0.029) for transferrin saturation, and 1.15 (95% CI: 0.98, 1.35; P = 0.084) for transferrin (with higher transferrin levels representing lower systemic iron status), using the inverse-variance weighted method. Sensitivity analyses produced consistent associations, and MR-Egger regression indicated no potential pleiotropy. Our replication analysis based on FinnGen research project showed compatible results with our main analysis. Results from our meta-analysis similarly showed that serum ferritin [standardized mean difference (SMD): -1.25; 95% CI: -2.34, -0.16; P = 0.024] and transferrin saturation (SMD: -1.19; 95% CI: -2.34, -0.05; P = 0.042) were lower in patients with prostate cancer compared with that in controls. Discussion: Our study suggests a protective role of iron in the risk of prostate cancer, further investigations are required to clarify the underlying mechanisms.

Genetic factors help explain the variable responses of young children with cystic fibrosis to vitamin D supplements.

BACKGROUND & AIMS: Children with cystic fibrosis (CF) are susceptible to fat-soluble vitamin deficiencies unless supplemented, but even large doses of vitamin D may not prevent low 25-hydroxyvitamin D (25OHD) concentrations. The explanation for these vitamin D non-responders has been elusive. We utilized data from whole genome sequencing (WGS) to test the hypothesis that genetic variations predict responsiveness to vitamin D supplementation in a prospective cohort study of children with CF in the first 3 years of life. METHODS: One hundred and one infants born during 2012-2017 and diagnosed with CF through newborn screening were studied. Serum 25OHD concentrations and vitamin D supplement doses were assessed during early infancy and annually thereafter. WGS was performed, the resultant variant calling files processed, and the summary statistics from a recent genome-wide association study were utilized to construct a polygenic risk score (PRS) for each subject. RESULTS: Overall, the prevalence of vitamin D insufficiency (<30 ng/mL) was 21% in the first 3 years of life. Among the 70 subjects who always adhered to vitamin D supplement doses recommended by the US CF Foundation guidelines, 89% were responders (achieved vitamin D sufficiency) by 3 years of age, while 11% were transient or non-responders. Multiple regression analysis revealed that PRS was a significant predictor of 25OHD concentrations (p < 0.001) and the likelihood of being an earlier responder in the first 3 years of life (p < 0.01). A limited SNP analysis revealed variants in four important genes (GC, LIPC, CYP24A1, and PDE3B) that were shown to be associated with 25OHD concentrations and vitamin D responder status. Other determinants included vitamin D supplement dose, season at 25OHD measurement, and pancreatic functional status. CONCLUSIONS: Applying WGS in conjunction with utilizing a PRS approach revealed genetic variations that partially explain the unresponsiveness of some children with CF to vitamin D supplementation. Our findings suggest that a nutrigenomics strategy could help promote personalized treatment in CF.

Therapeutic Effect of Laparoscopic Cholecystectomy on Patients with Cholecystolithiasis Complicated with Chronic Cholecystitis and Postoperative Quality of Life.

Objective: To assess the treatment outcome and postoperative quality of life of patients with gallbladder stones and chronic cholecystitis after open cholecystectomy and laparoscopic cholecystectomy. Methods: Between 2018 and 2020, 108 patients with gallbladder stones and chronic cholecystitis treated in our hospital were assessed for eligibility and randomly recruited. They were concurrently assigned (1 : 1) to receive either open cholecystectomy (control group) or laparoscopic cholecystectomy (study group). Outcome measures include surgical indices, inflammatory response, postoperative complications, and quality of life of patients. Results: Laparoscopic cholecystectomy was associated with a shorter duration of surgery, intraoperative bleeding, time to first postoperative bowel movement, and postoperative hospital stay versus open cholecystectomy (P < 0.05). The levels of inflammatory factors of all eligible patients were comparable before cholecystectomy (P > 0.05). The patients given laparoscopic cholecystectomy showed lower levels of C-reactive protein (CRP), interleukin (IL)-6, and IL-8 versus those given open cholecystectomy (P < 0.05). Laparoscopic cholecystectomy resulted in a significantly lower incidence of complication (3.56%) versus open cholecystectomy (24.07%) (P < 0.05). The patients had significantly higher physical, psychological, and social function scores after laparoscopic cholecystectomy versus open cholecystectomy (P < 0.05). Conclusion: Laparoscopic cholecystectomy provides better surgical results, mitigates the inflammatory response, lowers the incidence of complications, and improves the quality of life of patients versus open cholecystectomy, so it is worthy of application in clinical treatment.

Effects of oral administration and intravenous injection of polygalacturonic acid on the immunomodulation and gut microbiota in UC mice.

This study aimed to compare the differences between oral administration and intravenous injection of polygalacturonic acid (PGA) in the regulation of immune and intestinal microflora in ulcerative colitis (UC) mice. PGA was administered orally or intravenously. PGA in the high-dose ig group was the most effective in treating UC by increasing colon length and downregulating disease activity index, histopathological score and proinflammatory cytokine levels. In spleen, the efficacy of PGA on restoring Th17/Treg balance in the high-dose iv group was better than that in the high-dose ig group, the opposite was observed in the lamina propria. The level of colonic IL-17A in the high-dose ig group was lower than that in the high-dose iv group, the opposite was observed for that of colonic IL-10. Western blot and immunohistochemistry analysis revealed that PGA in the high-dose ig group decreased the protein expression of RORγt, and increased that of FOXP3. Furthermore, PGA in the high-dose ig group was more effective than that in the high-dose iv group in improving the intestinal microflora structure. Our results suggest that in immune regulation, oral PGA is more effective in the lamina propria and gut microbiota while intravenous PGA is more effective in the spleen.

[Research progress on camptothecin and its derivative nano-prodrugs based on tumor microenvironment response].

Nano-prodrug, one of the most widely used nano-formulation at present, has excellent efficacies in tumor treatment with high potential and clinical value. Camptothecin and its derivatives have broad prospects in the preparation of prodrugs for the treatment of tumors. Given the special microenvironment of tumors, including partial acidity, high concentration of reactive oxygen species, high concentration of glutathione and enzyme concentration, a large number of tumor microenvironment-responsive camptothecin and its derivative prodrugs were prepared. This paper classified them from the microenvironment response types and drug release characteristics, reviewed the research progress of camptothecin and its derivative prodrugs based on safety and clinical trials, and analyzed the existing problems and deficiencies, hoping to provide references for the development of camptothecin and its derivatives.

Exploring the pharmacological components and effective mechanism of Mori Folium against periodontitis using network pharmacology and molecular docking.

OBJECTIVES: To investigate the main active components, potential targets of action and analyze the potential molecular mechanisms of Mori Folium in preventing and treating periodontitis using network pharmacology and molecular docking methods. MATERIALS AND METHODS: The main components and action targets of Mori Folium were obtained in TCMSP and ETCM databases, and then the action targets of Mori Folium components were inversing screening using Swiss Target Prediction and BATMAN-TCM databases. Targets associated with periodontitis were retrieved from OMIM, Genecard, DrugBank, NCBI Gene and DisGeNET databases. Intersectional targets of Mori Folium and periodontitis were obtained by Venn analysis. Construction of an "active components-targets" network to prevent and treat periodontitis in Mori Folium using Cytoscape 3.8.0. The STRING database was used to construct the protein-protein interaction (PPI) network of intersecting targets, and the core network was screened using CytoNCA and MCODE plug-ins. Gene ontology (GO) and Kyoto encyclopedia of genes and genomes (KEGG) enrichment analyses were performed using the ClusterProfile package of R software, and then the "Mori Folium active components-targets-signaling pathway" network was constructed using Cytoscape software. Molecular docking was performed using AutoDock Vina software, and Pymol and LigPlus visualized the results. RESULTS: Sixteen active components and 1048 targets were screened from Mori Folium, of which 164 were intersectional with periodontitis targets and were considered potential therapeutic targets. The "Mori Folium active components-action targets" network identified Quercetin, Moracin D, Moracin E, Moracin G, Moracin H and Moracin B as the main active ingredients of Mori Folium for the prevention and treatment of periodontitis. PPI network analysis revealed interleukin 6 (IL6), albumin (ALB), tumor necrosis factor (TNF), vascular endothelial growth factor A (VEGFA), RAC-alpha serine/threonine-protein kinase (AKT1), cellular tumor antigen p53 (TP53), prostaglandin G/H synthase 2 (PTGS2), pro-epidermal growth factor (EGF), matrix metalloproteinase 9 (MMP9) and interleukin 6 (IL10) as the top 10 core potential targets. GO and KEGG enrichment analyses showed that the action targets of Mori Folium against periodontitis were mainly related to the response to bacterium and their lipopolysaccharide, angiogenesis and reactive oxygen species metabolic process, as well as through signaling pathways that regulate processes related to the accumulation of advanced glycation end products (AGEs), response to oxidative stress, response to inflammatory, and osteoclast differentiation during the development of the disease. Molecular docking revealed that Quercetin, Moracin D, Moracin E, Moracin G, Moracin H and Moracin B were able to bind stably to AKT1, PTGS2 and ESR1 targets, with Moracin E showing the most stable structure after binding to AKT1. CONCLUSIONS: In conclusion, this study revealed the active components, potential targets of action and the potential molecular mechanisms and pharmacological activities involved in the prevention and treatment of periodontitis in Mori Folium, providing a reference for the development of drugs from Mori Folium for the prevention and treatment of periodontitis.

Combination of ShuangDan Capsule and Sorafenib Inhibits Tumor Growth and Angiogenesis in Hepatocellular Carcinoma Via PI3K/Akt/mTORC1 Pathway.

Hepatocellular carcinoma (HCC) is a high mortality liver cancer. The existing treatments (transplantation, chemotherapy, and individualized treatment) with limitations. However, drug combination provides a viable option for hepatocellular carcinoma treatment. A Chinese patent medicine, ShuangDan Capsules (SDC), has been clinically prescribed to hepatocellular carcinoma patients as adjuvant therapy and has shown good antitumor activity. The purpose of this study was to investigate whether SDC could improve the anti-cancer effect and mitigate adverse reactions of sorafenib on HCC in vivo. Magnetic resonance imaging (MRI), immunohistochemistry, and western blot were executed to reveal the potential mechanisms of the combination of SDC and sorafenib on HCC. Tumors appeared hyperintense on T2 sequence images relative to the adjacent normal liver in MRI. Combination of SDC and sorafenib inhibited the progression of DEN (Diethylnitrosamine)-induced HCC. In the HepG2 xenografts model, sorafenib plus SDC exhibited greater suppression on tumor growth than individual treatment accompanied with decreased expression of VEGF, VEGFA, Ki67, CD31 and increased expression of caspase-3. Furthermore, PI3K/Akt/mTORC1 pathway was inhibited by co-administration. Sorafenib monotherapy elicited hepatotoxicity for specific expression in the up-regulated level of aspartate transaminase (AST) and AST/glutamic-pyruvic transaminase (ALT) ratio, but the co-administration could remedy this adverse effect. These dates indicated that the combination of SDC and sorafenib might offer a potential therapy for HCC.

Circulating phosphorus concentration and risk of prostate cancer: a Mendelian randomization study.

BACKGROUND: Recent observational studies have suggested that circulating phosphorus concentrations are positively associated with the risk of prostate cancer. However, little is known about the causal direction of the association. OBJECTIVES: To explore the potential causal relation between circulating phosphorus and risk of prostate cancer, we conducted a Mendelian randomization (MR) study. METHODS: Summary statistics of prostate cancer were obtained from a meta-analysis of genome-wide association studies (GWASs) consisting of 79,148 cases and 61,106 controls. Single-nucleotide polymorphisms (SNPs) associated with serum phosphorus concentration were selected from a GWAS of 291,408 individuals from the UK Biobank. MR analysis was performed using the inverse variance weighted (IVW) method, supplemented with simple median method, weighted median method, maximum likelihood-based method, MR-Egger regression, and the MR pleiotropy residual sum and outlier test. We also performed a meta-analysis of observational studies to assess the associations of dietary phosphorus intake and serum phosphorus concentration with risk of prostate cancer. RESULTS: In the MR analysis, a total of 125 independent SNPs associated with serum phosphorus concentrations were used as instrumental variables. Genetically predicted serum phosphorus concentrations were associated with a 19% increased risk of prostate cancer (95% CI: 9%, 31%) per 1-SD increment of serum phosphorus by IVW (P = 1.82 × 10-4). Sensitivity analyses using alternative MR methods produced similar positive associations, and no evidence of pleiotropy was detected by MR-Egger regression (P = 0.422). For meta-analysis, 8 studies for dietary phosphorus intake and 4 for serum phosphorus concentrations were included involving a total of 669,080 participants. Consistently, high dietary phosphorus intake and serum phosphorus concentrations were associated with an 8% (95% CI: 4%, 12%) and 7% (95% CI: 1%, 14%) increase in prostate cancer risk, respectively. CONCLUSIONS: Our study suggested a potential causal relation between circulating phosphorus and risk of prostate cancer. Further studies are warranted to elucidate the underlying mechanism of phosphorus in the development of prostate cancer.

Effects of various artificial agarwood-induction techniques on the metabolome of Aquilaria sinensis.

BACKGROUND: Agarwood is a highly sought-after resinous wood for uses in medicine, incense, and perfume production. To overcome challenges associated with agarwood production in Aquilaria sinensis, several artificial agarwood-induction treatments have been developed. However, the effects of these techniques on the metabolome of the treated wood samples are unknown. Therefore, the present study was conducted to evaluate the effects of four treatments: fire drill treatment (F), fire drill + brine treatment (FS), cold drill treatment (D) and cold drill + brine treatment (DS)) on ethanol-extracted oil content and metabolome profiles of treated wood samples from A. sinensis. RESULTS: The ethanol-extracted oil content obtained from the four treatments differed significantly (F < D < DS < FS). A total of 712 metabolites composed mostly of alkaloids, amino acids and derivatives, flavonoids, lipids, phenolic acids, organic acids, nucleotides and derivatives, and terpenoids were detected. In pairwise comparisons, 302, 155, 271 and 363 differentially accumulated metabolites (DAM) were detected in F_vs_FS, D_vs_DS, F_vs_D and FS_vs_DS, respectively. The DAMs were enriched in flavonoid/flavone and flavonol biosynthesis, sesquiterpenoid and triterpenoid biosynthesis. Generally, addition of brine to either fire or cold drill treatments reduced the abundance of most of the metabolites. CONCLUSION: The results from this study offer valuable insights into synthetically-induced agarwood production in A. sinensis.

Radiosensitizer Effect of ß-Apopicropodophyllin against Colorectal Cancer via Induction of Reactive Oxygen Species and Apoptosis.

ß-apopicropodophyllin (APP), a derivative of podophyllotoxin (PPT), has been identified as a potential anti-cancer drug. This study tested whether APP acts as an anti-cancer drug and can sensitize colorectal cancer (CRC) cells to radiation treatment. APP exerted an anti-cancer effect against the CRC cell lines HCT116, DLD-1, SW480, and COLO320DM, with IC50 values of 7.88 nM, 8.22 nM, 9.84 nM, and 7.757 nM, respectively, for the induction of DNA damage. Clonogenic and cell counting assays indicated that the combined treatment of APP and γ-ionizing radiation (IR) showed greater retardation of cell growth than either treatment alone, suggesting that APP sensitized CRC cells to IR. Annexin V-propidium iodide (PI) assays and immunoblot analysis showed that the combined treatment of APP and IR increased apoptosis in CRC cells compared with either APP or IR alone. Results obtained from the xenograft experiments also indicated that the combination of APP and IR enhanced apoptosis in the in vivo animal model. Apoptosis induction by the combined treatment of APP and IR resulted from reactive oxygen species (ROS). Inhibition of ROS by N-acetylcysteine (NAC) restored cell viability and decreased the induction of apoptosis by APP and IR in CRC cells. Taken together, these results indicate that a combined treatment of APP and IR might promote apoptosis by inducing ROS in CRC cells.

Effect of Holistic Nursing Intervention Combined with Humanized Nursing Intervention on Activities of Daily Living and Limb Movement Ability of Elderly Patients with Cerebral Hemorrhage after Surgery.

BACKGROUND: To improve the nursing status, activities of daily living (ADL), and limb movement ability of elderly patients with cerebral hemorrhage and to actively explore the comprehensive nursing mode that can meet the rehabilitation needs of patients. METHODS: 128 elderly patients with cerebral hemorrhage admitted to our department (2019.01-2021.01) were included in the study and randomly divided into the reference group and the study group according to the numeration table, with 64 cases in each group. The reference group received routine nursing, while the study group received holistic nursing combined with humanized nursing. Statistical methods were used to analyze the nursing effect of the two intervention models. RESULTS: With better scores of the upper limb muscle strength, lower limb muscle strength, and total Fugl-Meyer Assessment (FMA) in both groups after nursing, the scores in the study group after nursing were higher than those in the reference group (P < 0.05). After nursing, the ADL scores of both groups were significantly improved and the score in the study group was better than that in the reference group (P < 0.05). After nursing, the degree of neurological deficit in both groups was significantly better than that before nursing and the degree in the reference group was more serious than that in the study group (P < 0.05). Compared with the reference group, the total infection rate in the study group was lower, while the nursing satisfaction was higher, with statistical significance (P < 0.05). CONCLUSION: The holistic nursing combined with humanized nursing has a remarkable effect on the postoperative intervention of elderly patients with cerebral hemorrhage. It can improve the limb movement function, enhance the ADL, reduce the degree of neurological deficit, improve the quality of life, and enhance the nursing satisfaction of patients after intervention, which is worthy of clinical popularization.

Effects of Self-Management Intervention Programs Based on the Health Belief Model and Planned Behavior Theory on Self-Management Behavior and Quality of Life in Middle-Aged Stroke Patients.

OBJECTIVES: To study the effect of self-management intervention programs based on the health belief model and planned behavior theory on self-management behavior and quality of life in middle-aged stroke patients. Most of the intervention studies on the self-management of middle-aged stroke patients focus on traditional Chinese medicine nursing and continuous nursing, lacking theoretical support. In particular, there is a lack of interventions based on the integration of two or more theories. METHOD: The middle-aged stroke patients were divided into the control group and the intervention group according to the disease area. A total of 70 patients were included, and 35 patients were included in the control group and the intervention group, respectively. The control group received routine neurological treatment and health education during hospitalization and continued to receive routine health education for 3 months after discharge. On this basis, the intervention group received an intervention program based on an integrated model of health beliefs and planned behavior theory, including 3 health education sessions during hospitalization and 3 months of postdischarge health education. A self-administered stroke general information questionnaire was used to collect basic information on patients' age, gender, and comorbidities. The Stroke Self-Management Behavior Rating Scale and Stroke-Specific Quality-of-Life Scale (SS-QOL) were used to evaluate the management behavior and quality of life of the patients in both groups before and after the intervention. RESULTS: Before the intervention, there was no statistically significant difference between the two groups in terms of self-management score, quality of life total score, and scores of each dimension (P > 0.05). At different periods after the intervention, the total score of self-management, total score of quality of life, and scores of each dimension were significantly higher in both groups than before the intervention (P < 0.05). In particular, the self-management and quality of life scores of the intervention group were higher than those of the control group at 1 and 3 months after the intervention (P < 0.05). CONCLUSION: The self-management intervention scheme based on the integrated model of health belief and planned behavior theory is beneficial to improve the self-management ability and quality of life of stroke patients. It provides basis for clinical nurses to further improve the self-management ability and quality of life of stroke patients. Our findings may also serve as a reference for caregivers in other countries to improve the self-management and quality of life of stroke patients.

The mediating effect of academic engagement between psychological capital and academic burnout among nursing students during the COVID-19 pandemic: A cross-sectional study.

BACKGROUND: Almost all universities have been forced to close and change to online teaching during the COVID-19 pandemic, which has been a big challenge for students. There is little knowledge about the academic burnout among nursing students in these difficult circumstances, especially in traditional Chinese medicine universities, and the relationship between the burnout and their psychological capital and academic engagement. OBJECTIVE: The aim is to describe academic burnout and clarify the relationships between academic burnout, academic engagement, and psychological capital among nursing students in traditional Chinese medicine universities. DESIGN: This is a cross-sectional, descriptive study. SETTING: The study sampled a four-year undergraduate traditional Chinese medicine university in Jian, Shandong Province, China. PARTICIPANTS: A convenience sampling method was used to select 733 nursing students from April to June 2020. METHODS: The Academic Burnout Scale, the Positive Psychological Capital Scale, and the Academic Engagement Scale were used for data collection, in addition to social-demographic data. Path analysis was used to clarify the relationships among academic burnout, academic engagement and psychological capital. RESULTS: Of all the study participants, 39.29% had a certain degree of academic burnout. Academic engagement and psychological capital were negatively correlated with academic burnout among nursing students in traditional Chinese medicine university. Psychological capital was positively correlated with academic engagement. CONCLUSION: Nursing students had a certain degree of academic burnout. Academic engagement played a partial mediated role in the relationship between psychological capital and academic burnout.

[Meta-analysis of effect of Qishen Yiqi Dripping Pills combined with Western medicine on adverse cardiovascular events and quality of life after percutaneous coronary intervention].

To systemically evaluate the effect of Qishen Yiqi Dripping Pills combined with Western medicine on adverse cardiovascular events and quality of life after percutaneous coronary intervention(PCI). A total of 7 Chinese and English databases including CNKI, Wanfang, VIP, SinoMed, PubMed, Cochrane Library and Web of Science were searched by computer to collect the randomized controlled trials(RCTs) on Qishen Yiqi Dripping Pills combined with Western medicine in the treatment of patients with coronary heart disease after PCI with the retrieval time from the database establishment to April 1, 2020. Two researchers independently conducted li-terature screening, data extraction and bias risk assessment. Then, Meta-analysis was performed by using RevMan 5.3 software. A total of 31 RCTs were included, involving 3 537 patients. The results of Meta-analysis showed that in terms of major adverse cardiovascular events(MACE) after PCI, the combination of Qishen Yiqi Dripping Pills could significantly reduce the recurrence of angina pectoris, incidence of arrhythmia, heart failure and re-revascularization, and the effect was better than that of Western medicine treatment alone. However, there was no significant difference between the two groups in the improvement of non-fatal myocardial infarction, cardiac death, stent restenosis, stroke and other adverse cardiovascular events. In terms of improving left ventricular ejection fraction(LVEF), 6 min walking test(6 MWT), high-sensitivity C-reactive protein(hs-CRP) and Seattle angina pectoris scale(SAQ), the combination of Qishen Yiqi Dripping Pills and Western medicine treatment had obvious advantages over Western medicine treatment alone in increasing LVEF, 6 MWT and SAQ, and reducing the level of hs-CRP, with statistically significant differences. There were few adverse reactions in both groups, and there was no significant difference between the two groups. The main manifestations were gastrointestinal reactions, rash, gingiva and other small bleeding, and no serious adverse reactions occurred. The above reactions could disappear after drug withdrawal or symptomatic treatment. The application of Qishen Yiqi Dripping Pills combined with Western medicine in the treatment of patients after PCI could reduce the occurrence of MACE, improve the clinical efficacy, quality of life and prognosis in a safe and reliable manner. However, due to the quantity and quality limitations of included studies, more standardized, rigo-rous and high-quality clinical studies are still needed to further verify the above conclusions.

Status Quo and Analysis of the Cardiovascular Clinical Practice Guidelines/Expert Consensuses of Chinese and Integrative Medicine: A Systematic Review.

OBJECTIVE: To describe and analyze the status quo of cardiovascular clinical practice guidelines or expert consensuses including both Chinese medicine (CM) and integrative medicine, through systematic literatures searching and quality assessment. METHODS: Data bases including Chinese Biomedical Literature Database, the China National Knowledge Infrastructure, Wanfang Data, China Science and Technology Journal Database were searched for published CM or integrative cardiovascular clinical practice guidelines or expert consensuses. The website www. medlive.cn was also retrieved as supplementary. The clinical practice evaluation tool AGREE II was used to assess the quality of included guidelines or consensuses. RESULTS: A total of 31 relevant clinical practice guidelines or expert consensuses were included, covering diagnosis, treatment, Chinese patent and patient fields. Common cardiovascular diseases like coronary heart diseases, heart failure and arrhythmia were also involved. Through analysis it was found that both the quantity and quality of included guidelines have been improved year by year. A total of 4 evidence-based clinical practice guideline has been found, one of which was a guideline project plan. Except that, the remaining 27 reports were all consensus-based guidelines. The scores of each field, from highest to lowest, were clarity of presentation (58%), scope and purpose (54%), stakeholder involvement (28%), rigor of development (21%), applicability (13%) and editorial independence (8%). CONCLUSIONS: Although clinical practice guidelines in cardiovascular domain of Chinese have gained increasing concern, with both quantity and quality improved, there is still huge gap in methodology and reporting standards between CM guidelines and international ones. On the one hand, it is essential to improve and standardize the methodology of developing CM guidelines. On the other hands, the evaluation system of evidence and recommendation with CM characters should be developed urgently.