Background Carbendazim (CBZ), a widely used benzimidazole fungicide, has raised increasing concerns regarding the health risks associated with its residues. However, the toxic effects and associated mechanisms of CBZ on the skeletal system have not been reported. Objective To elucidate the effects of carbendazim on osteogenic differentiation and its underlying mechanisms. Methods MC3T3-E1 mouse pre-osteoblastic cells were treated with 1, 10, and 100 μmol·L⁻¹ CBZ for 24 h to examine cell viability, alkaline phosphatase (ALP) activity, bone nodule formation, reactive oxygen species (ROS) level, malondialdehyde (MDA) content, and nitric oxide synthase (NOS) activity. Transcriptomics was used to identify differentially expressed genes (DEGs) in osteoblasts exposed to CBZ. Kyoto Encyclopedia of Genes and Genomes (KEGG) and gene set enrichment analysis (GSEA) were employed to analyze the potential biological pathways of DEGs. Real-time polymerase chain reaction (RT-PCR) and Western blot were used to validate changes in gene and protein expression. Results Exposure to 10 and 100 μmol·L⁻¹ CBZ significantly reduced osteoblast viability, ALP activity, bone nodule formation, and NOS activity, while increasing intracellular ROS levels. CBZ at 100 μmol·L⁻¹ concentration significantly elevated MDA level (P < 0.05). The transcriptomic analysis revealed that 1 μmol·L⁻¹ CBZ treatment resulted in 385 significantly DEGs. The KEGG enrichment analysis revealed that CBZ significantly affects hormone regulation pathways (including parathyroid hormone, growth hormone, dopamine, and oxytocin), mitogen-activated protein kinase (MAPK) and cyclic GMP-dependent protein kinase G (cGMP-PKG) signaling pathways, focal adhesion and adherens junction, as well as the NOD-like receptor signaling pathway and the mRNA surveillance (NMD) pathway. The results of GSEA showed that CBZ significantly inhibited the bile acid metabolism and the Wnt/β-catenin pathway in osteoblasts. The validation results demonstrated that CBZ significantly suppressed the mRNA expression of Wnt3a and β-catenin, as well as the protein expression of Runx2 and Osterix in the Wnt/β-catenin pathway. Conclusion CBZ exposure exhibits potential skeletal toxicity, and its mechanism is through promoting oxidative stress, interfering with the Wnt/β-catenin pathway in osteogenic differentiation, thereby inhibiting the bone formation function of osteoblasts.

OBJECTIVE To study the extraction process of Hongqijin granules with the standard decoction of Hongqijin formula as the reference. METHODS Fifteen batches of Hongqijin formula standard decoction were prepared. The reference characteristic chromatogram was established， and the chromatographic similarity was calculated. The average extraction yield and average transfer rates of calycosin-7-glucoside， salidroside， curcumin， and emodin of the 15 batches of standard decoction were determined. Taking soaking time， water addition amount， and decoction time as influencing factors， and extraction yield， transfer rates of marker components， as well as chromatographic similarity with the reference characteristic chromatogram as evaluation indexes， orthogonal test combined with principal component analysis was adopted to optimize the extraction process of Hongqijin granules， followed by process verification. RESULTS The average extraction yield of 15 batches of Hongqijin formula standard decoction was 32.55%. The average transfer rates of calycosin-7-glucoside， salidroside， curcumin， and emodin were 70.68%， 74.35%， 2.16%， and 4.62%， respectively. The optimal extraction process of Hongqijin granules was confirmed as follows： extraction was carried out twice； the first extraction used 8-fold water for 60 min， and the second extraction adopted 6.5-fold water for 45 min. In three validation tests， the average extraction yield was 33.01%. The average transfer rates of the four marker components were 79.51%， 75.54%， 1.84%， and 4.30%， with all RSD values less than 2%. The chromatographic similarities between the extracting solution and reference characteristic chromatogram were all higher than 0.990. CONCLUSIONS The optimized extraction process of Hongqijin granules exhibits good stability， and the material basis of the extracting solution is consistent with that of Hongqijin formula standard decoction.

ObjectiveThis study aimed to provide a scientific basis for the safety management of drinking water by assessing the contamination levels of 21 per- and polyfluoroalkyl substances (PFASs) in water samples collected from the Yangtze River Delta region. MethodsSolid-phase extraction coupled with ultra-high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) was employed to determine 21 PFASs in 6 source water samples, 20 treated water samples, and 60 tap water samples collected from 5 administrative districts in the Yangtze River Delta region across four seasons in 2023. The Kruskal-Wallis H test was used to compare differences in PFAS concentrations among the three types of water samples, followed by post hoc pairwise comparisons with Bonferroni correction. Removal efficiencies of target compounds were also calculated. ResultsAmong the 86 samples, 14 PFASs were detected, with 7 compounds detected in 100% of samples. The total concentrations of PFASs in source water, treated water, and tap water ranged from 63.85 to 190.54 ng·L^-¹, 55.75 to 774.36 ng·L^-¹, and 40.72 to 689.80 ng·L^-¹, respectively. The compounds with the highest median concentrations were perfluorobutanoic acid (PFBA) (40.19, 15.20, and 14.05 ng·L^-¹), perfluorohexanoic acid (PFHxA) (29.69, 32.62, and 34.24 ng·L^-¹), perfluorooctanoic acid (PFOA) (17.65, 39.45, and 36.83 ng·L^-¹), and potassium perfluorobutanesulfonic acid (PFBS) (16.99, 24.38, and 23.89 ng·L^-¹). Notably, concentrations of PFOA (7.71‒71.63 ng·L^-¹) and PFOS (-¹) in tap water were below the regulatory limits specified in GB 5749‒2022 Standards for Drinking Water Quality (PFOA: 0.000 08 mg·L^-1, PFOS: 0.000 04 mg·L^-1). Significant seasonal variations in PFAS concentrations were observed, with total PFAS levels in March being higher than those in September and November (adjusted P<0.001, and P=0.006), and levels in May being higher than those in September (adjusted P=0.037). The removal efficiencies of PFASs in the water treatment plants ranged from -14% to 34%. ConclusionPFAS contamination is widespread in source water, treated water, and tap water in the Yangtze River Delta region, and concentrations of PFOA and PFOS in all tested water samples comply with the Chinese national standards for drinking water quality (GB 5749‒2022). The use of PFASs should be continuously regulated to ensure water safety.

Objective:To explore the current situation of nurses′growth mindset ability and study its related influencing factors, so as to serve as a reference for improving nurses′ growth mindset ability.Methods:This was a cross-sectional survey, and 310 nurses from 5 tertiary hospitals in Shandong Province, Shanghai City, and Guangdong Province were selected as the survey subjects from April to June 2022 using convenience sampling method. The General Information Questionnaire, the Nurses′ Growth Mindset Assessment Scale, the Psychological Adaptability Self-Assessment Scale, the Chinese Big Five Personality Inventory Brief Version and the Team Psychological Safety Atmosphere Scale were used to investigate the growth mindset ability of nurses and its influencing factors.Results:Finally, 307 valid questionnaires were collected. There were 46 males and 261 females, aged 20-50 years old. The scores of the Nurses′ Growth Mindset Assessment Scale were (108.89 ± 29.32) points, the scores of the Psychological Adaptability Self-Assessment Questionnaire were 10.0(0.0, 20.0) points, the scores of the Chinese Big Five Personality Inventory Brief Scale were (162.37±43.82) points, and the scores of the Team Psychological Safety Atmosphere Scale were (55.84 ± 15.12) points. The highest education level ( B = 0.028, P = 0.040), professional title ( B = 0.033, P = 0.032), family economic support ( B = 0.025, P = 0.048), Chinese big five personality ( B = 0.039, P = 0.037), team psychological safety atmosphere ( B = 0.600, P<0.001) and psychological adaptability ( B = 0.313, P<0.001) had a significant effect on nurses′ growth mindset ability. Conclusions:The growth mindset ability of nurses is at the upper middle level, and the educational background, professional title, family economic support, personality characteristics, team psychological safety atmosphere and psychological adaptability of nurses are the significant influencing factors. Hospitals, social and health education systems can combine influencing factors to provide a harmonious working atmosphere for nurses, focusing on the improvement of nurses′ academic qualifications and the promotion of professional titles, cultivating nurses′ psychological adaptability, improving nurses′growth mindset ability, and improving the overall quality of the nursing service team.

Objective To quantify the setup errors for the different anatomical sites of patients who received intensity-modulated radiotherapy (IMRT) with linear accelerator on-board kilovolt fan beam CT(kV-FBCT) as non-isocenter IGRT and megavolt cone beam CT (MV-CBCT) as isocenter IGRT. Methods A retrospective analysis was performedon 70 patients who underwent radiotherapy, kV-FBCT, and/or MV-CBCT scans after each routine setup prior to IMRT. The average displacement (M), systematic error (Σ), and random error (б) at different treatment sites in the left-right, anterior-posterior, and cranial-caudal directions were calculated according to the individual displacements. The formula 2.5Σ+0.7б was used to estimate the PTV margin in respective direction. For each single patient, the root mean square in three directions was used as 3D displacement. Results A total of 1130 displacements were recorded in the 70 patients. The PTV margin was estimated to be 1.9-3.1 mm in head and neck cancer, 2.8-5.1 mm in thoracic cancer, 4.6-5.1 mm in breast cancer, 3.0-5.5 mm in upper abdominal cancer, and 3.5-6.8 mm in pelvic tumor. For the 3D mean displacements, the head and neck, thoracic, breast, upper abdominal, and pelvic cancer were 2.4±1.0, 4.0±1.6, 4.1±2.0, 4.6±2.1, and 4.6±2.1 mm, respectively. The average 3D displacement obtained by kV-FBCT and MV-CBCT were 4.1 and 3.4 mm, respectively (P=0.212). Conclusion The quantitative setup-error data can be obtained using linear accelerator on-board FBCT, and the non-isocenter IGRT induced set-up error cannot be negligible.

Objective: To analyze the curative effects of traditional Chinese herbal decoction on breast carcinoma patients in doxorubicin-induced cardiotoxicity by meta-analysis to provide evidences for doctors in treating breast carcinoma patients who were in doxorubicin-induced cardiotoxicity by traditional Chinese herbal decoction.Method: Published papers about the curative effects of traditional Chinese herbal decoction on doxorubicin-induced cardiotoxicity in breast carcinoma patients in clinical random control experiment were collected. To analyze the prescription rules and do metaanalysis in the eligible ones by the software RevMan5.2. Evaluate clinical effects of traditional Chinese medicine in treating breast carcinoma patients who were in doxorubicin-induced cardiotoxicity.Results: Ten references and 648 cases in total meeting eligibility criteria were included. Compared with pure anthracycline-based chemotherapy drugs, the breast carcinoma patients who received Anthracycline-based chemo therapy drugs with traditional Chinese medicine, their ECG changes less, their difference was statistically significant (OR=0.23, 95％ CI (0.16, 0.16), P ＜0.00001) . They had better cardiac function. the difference was statistically significant (OR=0.18, 95％ CI (0.09, 0.09), P ＜0.00001) . Their left ventricular systolic function improved. Their difference was statistically significant (MD = 3.82, 95％CI (0.29, 0.29), P=0.03 ＜ 0.05) . The myocardial enzyme spectrum, cardiac troponin I and myocardial troponin T were improved. Conclusion: To some extent, decoction of Chinese herbal medicine has effects on breast carcinoma patients with myocardial anthracycline-based drugs damage.

BACKGROUND:Studies have found that adipose-derived stem cells (ADSCs)/collagen complexes can promote the ADSCs differentiation and maturation into mature adipocytes and promote angiogenesis.OBJECTIVE:To explore the biological properties of the ADSCs/collagen sponge composite material and to detect its effect on angiogenesis.METHODS:(1) ADSCs were cultured on collagen sponge (experimental group) or cultured alone (control group).After 24 hours of culture,cell adhesive rate of ADSCs was determined with flow cytometry.After 2,4,6 days of culture,cell proliferation and level of vascular endothelial growth factor (VEGF) in the culture medium were detected.(2) Chick embryo chorioallantoic membranes were exposed and incubated for 7 days and then divided into four groups:0.2 mL of sterile PBS was added in the blank group,0.2 mL of 2× 108/L passage 3 ADSCs suspension was added in the ADSCs group,collagen sponge was added in the collagen sponge group,and collagen sponge with 0.2 mL of 2× 108/L passage 3 ADSCs suspension was added in the composite group.After 7 days of incubation,the microvessel count around the chorioallantoic membrane was measured.RESULTS AND CONCLUSION:(1) The cell adhesive rate of ADSCs to collagen sponge reached to (93.04±0.67)％.(2)The absorbance value (at 6 days of culture) and level of VEGF (at 4 and 6 days of culture) in the experimental group were significantly higher than those in the control group (P ＜ 0.01 or P ＜ 0.05).(3) Compared with the blank group,the number of microvessels was significantly higher in the ADSCs,collagen sponge and composite groups (P ＜ 0.05).Moreover,higher amount of microvessels were found in the composite group than the ADSCs and collagen sponge groups (P ＜ 0.05).To conclude,ADSCs can adhere well to the collagen sponge with good biocompatibility and their combined use can improve angiogenesis further by enhancing cell proliferation and VEGF secretion of ADSCs.

Objective To evaluate the application of high-throughput shell vial assay in a clinical laboratory for detection of respiratory viruses from patients with ILI in Guangzhou between January and June, 2009. Methods Six hundred and fifty-two pharyngeal swab specimens were taken from ILI patents. Centrifugation-enhanced shell vials including 4 cell lines (MDCK, Hep-2, LLC-MK2 and MRC-5) were used for culture of respiratory viruses for 2-3 days. The cultures were identified by observation of cytopathic effect (CPE) , hemmaglution or hemmadsorption test as well as immunofluorescence staining. Results A total of 161 swab samples (24.69% ,161/652) were shown to have any one of the 5 common respiratory viruses including influenza A viruses ( 38. 51% , 62/161 ), influenza B virus ( 54. 65% , 88/161 ), parainfluenza viruses (4. 96% , 8/161 ) , adenovirus ( 1. 24% , 2/161 ), and respiratory syncytial virus (0. 62% ,1/161). The turnaround time was 2d for influenza viruses, 3d for adenovirus and parainfluenza viruses respectively. Conclusions (1) The shell vial method was effective, rapid and high throughout for the detection of respiratory viruses in clinical laboratories.(2)Influenza viruses were dominant in the swab samples from patients with ILI in Guangzhou between January and June with the highest appearance in the summer influenza B vires was the most common pathogen in patients with ILI in this study.