Objective:To explore the changes in serum levels of miR-499 and miR-362 in patients with advanced non-small cell lung cancer (NSCLC) and their relationship with prognosis.Methods:A total of 103 patients with advanced NSCLC at Shanghai University of Medicine & Health Sciences Affiliated Chongming Hospital from January 2020 to October 2021 were selected as the NSCLC group, and 100 healthy volunteers who underwent physical examinations at our hospital during the same period were selected as the control group. Fluorescent quantitative PCR was used to determine and compare the levels of serum miR-499 and miR-362 in the two groups, and the relationship between the two indexes and different clinical characteristics of NSCLC patients was analyzed. According to the clinical outcome of 2-year follow-up, the patients were divided into survival group and death group, and the levels of serum miR-499 and miR-362 were compared between the two groups. The predictive value of miR-499 and miR-362 levels on the prognosis of advanced NSCLC patients were analyzed using receiver operator characteristic (ROC) curves.Results:The serum miR-499 level in the NSCLC group (0.34±0.10) was lower than that in the control group (1.25±0.21), while the miR-362 level (1.13±0.27) was higher than that in the control group (0.63±0.15) ( t=18.26, P<0.001; t=16.32, P<0.001). There were statistically significant differences in serum miR-499 and miR-362 levels among patients with different degrees of differentiation ( t=11.12, P<0.001; t=16.35, P<0.001), TNM staging ( t=13.64, P=0.002; t=8.73, P=0.010) and lymph node metastasis ( t=10.02, P=0.003; t=9.65, P=0.004). The serum miR-499 level in the death group ( n=77) (0.24±0.06) was lower than that in the survival group ( n=26) (0.35±0.09), while the miR-362 level (1.54±0.32) was higher than that in the survival group (1.08±0.21), with statistically significant differences ( t=8.06, P=0.006; t=8.67, P=0.005). ROC curve analysis showed that the sensitivity of miR-499 and miR-362 in predicting the prognosis of advanced NSCLC patients was 73.46% and 75.85%, respectively, with specificity of 64.42% and 65.61%, AUC of 0.739 (95% CI: 0.662-0.805) and 0.743 (95% CI: 0.640-0.793) ; the sensitivity, specificity, and AUC of serum miR-499 combined with miR-362 in predicting the prognosis of advanced NSCLC patients were 87.63%, 85.34%, and 0.875 (95% CI: 0.698-0.897), respectively; the combined prediction of miR-499 and miR-362 for AUC area was higher than the individual prediction ( Z=4.83, P=0.013; Z=5.17, P=0.009) . Conclusion:Advanced NSCLC patients show significant abnormal serum level of miR-499 and miR-362, and as the severity of the disease progressed, the serum level of miR-499 is downregulated more significantly and miR-362 is upregulated more significantly. The combined detection of miR-499 and miR-362 levels has certain predictive value for the prognosis of advanced NSCLC patients.

Background::Heterotaxy (HTX) is a thoracoabdominal organ anomaly syndrome and commonly accompanied by congenital heart disease (CHD). The aim of this study was to analyze rare copy number variations (CNVs) in a HTX/CHD cohort and to examine the potential mechanisms contributing to HTX/CHD.Methods::Chromosome microarray analysis was used to identify rare CNVs in a cohort of 120 unrelated HTX/CHD patients, and available samples from parents were used to confirm the inheritance pattern. Potential candidate genes in CNVs region were prioritized via the DECIPHER database, and PNPLA4 was identified as the leading candidate gene. To validate, we generated PNPLA4-overexpressing human induced pluripotent stem cell lines as well as pnpla4-overexpressing zebrafish model, followed by a series of transcriptomic, biochemical and cellular analyses. Results::Seventeen rare CNVs were identified in 15 of the 120 HTX/CHD patients (12.5%). Xp22.31 duplication was one of the inherited CNVs identified in this HTX/CHD cohort, and PNPLA4 in the Xp22.31 was a candidate gene associated with HTX/CHD. PNPLA4 is expressed in the lateral plate mesoderm, which is known to be critical for left/right embryonic patterning as well as cardiomyocyte differentiation, and in the neural crest cell lineage. Through a series of in vivo and in vitro analyses at the molecular and cellular levels, we revealed that the biological function of PNPLA4 is importantly involved in the primary cilia formation and function via its regulation of energy metabolism and mitochondria-mediated ATP production. Conclusions::Our findings demonstrated a significant association between CNVs and HTX/CHD. Our data strongly suggested that an increased genetic dose of PNPLA4 due to Xp22.31 duplication is a disease-causing risk factor for HTX/CHD.

Abstract With the successive liberalization of the two child and three child policies in China, the issue of sibling relationships has been paid more and more attention by society. Severe sibling jealousy has a negative impact on the physical and mental health development of both young children and their siblings. The study reviewed the influencing factors of sibling jealousy, and analyzed the effect of applying six related intervention methods to the sibling jealousy intervention.The review aims to provide theoretical and empirical basis for children s sibling jealousy intervention, to reduce the level of sibling jealousy through the intervention, and to promote the physical and mental health of young children and their brothers and sisters.

Objective:To test the reliability and validity of the Chinese version of the Rowland Universal Dementia Assessment Scale (RUDAS) among patients with dementia in China.Methods:All participants were recruited from a psychiatric hospital, two old people′s homes and three community mental health centers in Huzhou city. Convenience sampling method was used. All participants were tested by the Chinese version of RUDAS and The Mini-Mental State Examination (MMSE). Cronbach α coefficient and retest reliability were used for reliability test. Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were used for validity test. The criterion validity of MMSE and Chinese version of RUDAS was tested by Pearson correlation analysis.Results:EFA extracted 6 factors and factor loadings of each item ranged from 0.594 to 0.960, which contributed to 62.584% variance totally. Six factors were identified, namely, visual-spatial orientation, imitation and judgment, visual structure, delayed recall, linguistic accuracy, and linguistic fluency. Compared with the original scale, the dimension of verbal communication showed reduced dimension. In the CFA, χ 2/ df=1.031, GFI=0.882, AGFI=0.853, CFI=0.996, TLI=0.996, RMSEA=0.014, all the indicators were in adaption standard range. The Cronbach α coefficient was 0.793, and the Cronbach α coefficients for six dimensions ranged from 0.503 to 0. 930.The test-retest reliability for the Chinese version of RUDAS was 0.91. Conclusion:The Chinese version of RUDAS showed satisfactory psychometric properties in dementia screening, which can provide guidance and reference for further diagnostic research and application practice of this scale.

Objective:To test the reliability and validity of the Chinese version of the Rowland Universal Dementia Assessment Scale (RUDAS) among patients with dementia in China.Methods:All participants were recruited from a psychiatric hospital, two old people′s homes and three community mental health centers in Huzhou city. Convenience sampling method was used. All participants were tested by the Chinese version of RUDAS and The Mini-Mental State Examination (MMSE). Cronbach α coefficient and retest reliability were used for reliability test. Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were used for validity test. The criterion validity of MMSE and Chinese version of RUDAS was tested by Pearson correlation analysis.Results:EFA extracted 6 factors and factor loadings of each item ranged from 0.594 to 0.960, which contributed to 62.584% variance totally. Six factors were identified, namely, visual-spatial orientation, imitation and judgment, visual structure, delayed recall, linguistic accuracy, and linguistic fluency. Compared with the original scale, the dimension of verbal communication showed reduced dimension. In the CFA, χ 2/ df=1.031, GFI=0.882, AGFI=0.853, CFI=0.996, TLI=0.996, RMSEA=0.014, all the indicators were in adaption standard range. The Cronbach α coefficient was 0.793, and the Cronbach α coefficients for six dimensions ranged from 0.503 to 0. 930.The test-retest reliability for the Chinese version of RUDAS was 0.91. Conclusion:The Chinese version of RUDAS showed satisfactory psychometric properties in dementia screening, which can provide guidance and reference for further diagnostic research and application practice of this scale.

The capacity for thermal tolerance is critical for industrial enzyme. In the past decade, great efforts have been made to endow wild-type enzymes with higher catalytic activity or thermostability using gene engineering and protein engineering strategies. In this study, a recently developed SpyTag/SpyCatcher system, mediated by isopeptide bond-ligation, was used to modify a rumen microbiota-derived xylanase XYN11-6 as cyclized and stable enzyme C-XYN11-6. After incubation at 60, 70 or 80 ℃ for 10 min, the residual activities of C-XYN11-6 were 81.53%, 73.98% or 64.41%, which were 1.48, 2.92 or 3.98-fold of linear enzyme L-XYN11-6, respectively. After exposure to 60-90°C for 10 min, the C-XYN11-6 remained as soluble in suspension, while L-XYN11-6 showed severely aggregation. Intrinsic and 8-anilino-1-naphthalenesulfonic acid (ANS)-binding fluorescence analysis revealed that C-XYN11-6 was more capable of maintaining its conformation during heat challenge, compared with L-XYN11-6. Interestingly, molecular cyclization also conferred C-XYN11-6 with improved resilience to 0.1-50 mmol/L Ca²⁺ or 0.1 mmol/L Cu²⁺ treatment. In summary, we generated a thermal- and ion-stable cyclized enzyme using SpyTag/SpyCatcher system, which will be of particular interest in engineering of enzymes for industrial application.
Animals ; Cyclization ; Endo-1,4-beta Xylanases ; chemistry ; metabolism ; Enzyme Stability ; Industrial Microbiology ; methods ; Microbiota ; Protein Engineering ; Rumen ; enzymology ; microbiology ; Temperature

Objective To understand the cleaning quality of dental handpieces in Suzhou City, analyze the relevant factors that influencing cleaning effect.Methods A cross-sectional study was performed with the proportional system sampling method, questionnaires were adopted to investigate the cleaning location, cleaning method and process of dental handpieces, the ATP fluorescence detection method was conducted to detect cleaning quality.Results In 10 administrative regions of this city, a total of 72 medical institutions were selected, 25 were public medical oral diagnosis and treatment institutions, 47 were private clinics.Cleaning effect of automatic handpiece cleaning machine was better than traditional manual cleaning (unqualified rate :3.95% vs 11.96%, P<0.05), unqualified rate of handpieces cleaned by cleaning personnel without inadequate knowledge was higher than that by personnel with adequate knowledge(14.88% vs 3.57%, P<0.05).Qualified rate of cleaning: different cleaning locations ranged from 5.00% to 11.23%, cleaning equipment was inadequate and sufficient 11.89% and 7.29% respectively, cleaning personnel were not designated and designated 12.16% and 9.83% respectively, but the difference were not statistically significant (all P>0.05).The quality of cleaning of handpieces could be improved if waiting time of cleaning ≤30 minutes, enzymes were used during cleaning, and purified water was used at the end rinse(all P<0.05);whether there was drying process and used lubricant, difference were both not significant.Conclusion Using automatic handpiece cleaning machine, cleaning personnel with adequate knowledge, cleaning waiting time ≤30 minutes, enzyme use during the cleaning process, and purified water use at the end rinse can improve the quality of cleaning of dental handpieces.

Objective To explore the cleaning status and cleaning quality of dental handpieces in various types of medical institutions in Suzhou City.Methods On October 26-31, 2015, dental clinics in the whole city were sampled according to cross-sectional survey and proportional sampling method, the cleaning quality of dental handpieces in each clinic was detected by ATP bioluminescence assay.Results 72 medical institutions, 201 handpieces, 402 samples in 10 administrative regions of the city were sampled, 42 samples was unqualified, unqualified rate was 10.45％, unqualified rate of cleaning of dental handpiece surface was higher than waterline of dental handpiece(17.91％ vs 2.99％, P<0.05).Cleaning quality of dental handpieces in different grades of medical institutions was different(P<0.05), tertiary medical institutions were all ualified, medical institutions without grade was 14.45％.According to the classification based on name of different medical institutions, cleaning quality of handpieces was statistically significant(P<0.05), cleaning efficacy of dental handpieces in department of stomatology of public hospitals was best(unqualified rate was 4.31％), while private dental clinics had the worst cleaning efficacy(unqualified rate was 13.81％).Conclusion Education and training of dental handpieces cleaning in the whole city should be strengthened, especially the management of cleaning of dental handpieces in low grade and private dental clinics.

Osteoarthritis is a common articular cartilage degenerative disease and the main cause is mechanical instability. The mechanical instability can reduce the number of chondrocytes and destroy extracellular matrix through direct injury, inducing cell apoptosis, and stimulating the production of inflammatory factors, leading to decrease of matrix typeⅡ collagen and proteoglycan and degeneration of cartilage. Long-term cartilage degeneration can result in osteoarthritis. Therefore, understanding how mechanical instability leads to the incidence of osteoarthritis can better improve the course of osteoarthritis from the perspective of mechanics.

Recently, research on collagen attracts more interests due to its good biological compatibility. The present study attempted to establish a fast and efficient method to purify collagen from soft-shelled turtle and to explore its application in biological materials. The structure and type of collagen fiber in calipash were determined by van Gieson staining and Picrosirius red staining, which could contribute to the isolation of collagen from soft-shelled turtle Calipash (STCC). Collagen fibers were in high content and the main collagen fiber was type I in STCC. The crude STCC solution was purified by dialysis with different cut-off molecular weight. SDS-PAGE demonstrated that the best purification was in applying 100 kDa dialysis bags after 48 h. The water absorbing capacity and holding capacity of STCC were up to 12.06 g/g and 98.21%, respectively. STCC can be degraded by collagenase in vitro entirely after 72 h. The hemolysis, skin sensitization, hemostatic and wound healing of STCC were determined by using SD rat model, and the collagen cross-linked by glutaric dialdehyde was set as a comparison. STCC and STCC cross-linked did not result in destructed red blood cell, inflamed and sensitized skin. Both materials exhibited good hemostatic effect. Thus, STCC improved the wound healing efficiently. This study implies a potential of STCC in the field of biomaterial.
Animals ; Biocompatible Materials ; Biotechnology ; Collagen ; isolation & purification ; Electrophoresis, Polyacrylamide Gel ; Molecular Weight ; Rats ; Rats, Sprague-Dawley ; Skin ; drug effects ; Turtles ; Wound Healing