Objective To investigate the short-term efficacy of dapagliflozin in the treatment of non-diabetic patients with severe aortic stenosis after transcatheter aortic valve replacement(TAVR).Methods A total of 84 non-diabetic patients with severe aortic stenosis after TAVR who were admitted to Zhengzhou Cardiovascular Hospital from March 2019 to September 2022 were selected as research subjects.According to the postoperative treatment,the patients were divided into control group and observation group,with 42 patients in each group.Patients in both groups underwent TAVR.The patients in the control group were given routine treatments such as antiplatelet drugs,cardiac remodeling improvement drugs,and diuretics after TAVR;patients in the observation group were given dapagliflozin 10 mg daily for 6 months in addition to treatment in the control group.The left ventricular ejection fraction(LVEF),left ventricular end-systolic diameter(LVESD),left ventricular end-diastolic diameter(LVEDD),aortic valve peak gradient(AVPG)and aortic valve peak velocity(AVPV)of patients in the two groups were measured by using an ultrasound diagnostic instrument before surgery,3 days and 6 months after TAVR;before surgery and 6 months after the TAVR,low-density lipoprotein cholesterol(LDL-C)in serum of patients in the two groups was detected by direct measurement method,lipoprotein a[Lp(a)]level in serum was detected by latex agglutination reaction method,hypersensitive C-reactive protein(hs-CRP)level in serum was detected by rate scattering turbidimetry;the levels of N-terminal pro B-type natriuretic peptide(NT-proBNP),interleukin-6(IL-6),tumor necrosis factor-α(TNF-α)and interleukin-1 β(IL-1 β)in serum were detected by using enzyme-linked immunosorbent assay;the glycated hemoglobin level of patients in the two groups was measured by ion exchange chromatography.Results There was no statistically significant difference in LVEF,LVESD and LVEDD of patients in the two groups before and 3 days after surgery(P＞0.05);after 3 days of surgery,the AVPG and AVPV of patients in the two groups were significantly lower than those before surgery(P＜0.05).Six months after surgery,the LVEF of patients in the two groups was significantly higher than that before and 3 days after surgery,while LVESD,LVEDD,AVPG and AVPV were significantly lower than those before and 3 days after surgery(P＜0.05).There was no statistically significant difference in LVEF,LVESD,LVEDD,AVPG and AVPV between the control group and the observation group before and 3 days after surgery(P＞0.05).After 6 months of surgery,the LVEF of patients in the observation group was significantly higher than that in the control group,while LVESD and LVEDD were significantly lower than those in the control group(P＜0.05);there was no statistically significant difference in AVPG and AVPV of patients between the observation group and control group(P＞0.05).Before surgery,there was no statistically significant difference in body mass index(BMI),LDL-C and Lp(a)of patients between the two groups(P＞0.05).Six months after surgery,the BMI,LDL-C and Lp(a)of patients in the two groups were significantly lower than those before surgery,and the BMI,LDL-C and Lp(a)of patients in the observation group were significantly lower than those in the control group(P＜0.05).Before surgery,there was no statistically significant difference in the hs-CRP,NT-proBNP,IL-6,TNF-α and IL-1 β of patients between the two groups(P＞0.05);six months after surgery,the hs-CRP,NT-proBNP,IL-6,TNF-α and IL-1 β of patients in the two groups were significantly lower than those before surgery,and the hs-CRP,NT-proBNP,IL-6,TNF-α and IL-lβ of patients in the observation group were significantly lower than those in the control group(P＜0.05).There was no statistically significant difference in glycated hemoglobin of patients between the two groups before and six months after surgery(P＞0.05),and no statistically significant difference in glycated hemoglobin of patients in the two groups six months after surgery compared with that before surgery(P＞0.05).Conclusion Dapagliflozin can effectively improve cardiac structural remodeling,regulate lipid metabolism,reduce the expression of inflammatory factors and promote the recovery of heart function in non-diabetic patients with severe aortic stenosis after TAVR.

ObjectiveTo analyze the measures and effects of comprehensive noise control in an automobile engine manufacturing enterprise. Methods An automobile engine manufacturing enterprise with noise exposure work-sites was selected as the research subject. The noise hazard status of the enterprise was investigated. The noise hazard exceeded the national standard in work-sites was comprehensively treated. The treatment effect was analyzed. Results A total of 395 work-sites exposed to noise were detected. Among them, 16 work-sites exceeded the national noise standard, with the rate of 4.1%. The work-sites with noise exceeding the national standard were mainly in the machine workshop and the casting workshop, with normalization of equivalent continuous A-weighted sound pressure level to a nominal eight hours working day (L_EX,8h) ranging from 86.8 to 89.2 and 85.2 to 90.2 dB(A), respectively. In addition, the classification of occupational noise exposure of the mold protection group in the casting workshop was level Ⅱ, and classification of occupational noise exposure of other work-sites with excessive national standard was grade Ⅰ. After the enterprise implemented noise control measures such as process reform, equipment replacement, sound insulation, noise reduction, sound absorption, and vibration isolation, the L_EX,8h of nine positions were lower than those before rectification ［(86.7±1.1) vs (83.3±1.3) dB(A), P<0.01］. Conclusion The use of comprehensive control measures can achieve the purpose of reducing noise from the sources, and can be used for reference by relevant enterprises with noise hazards.

Methods: Papers on the research of HUA prevention and treatment with medicine-food homology from December 15, 2002 to August 10, 2024 were screened and collected through China National Knowledge Infrastructure (CNKI), PubMed, ScienceDirect, and Google Scholar. Subsequently, the impact of these medications and their extracts, as well as the active compounds on HUA were assessed. Results: A total of 148 relevant papers were collected, including 43 kinds of Chinese medicines and 61 active compounds, all of which have anti-HUA activity. Among them, 41 kinds of Chinese medicines could inhibit the activity of xanthine oxidase, thus leading to the inhibition of uric acid production; and 22 kinds of Chinese medicines could facilitate uric acid excretion, while 15 kinds of Chinese medicines could reduce the inflammation levels in the body and promoting renal protection. Notably, polyphenols and flavonoids are the key active components for the uric acid-lowering effects. Conclusion This study systematically summarized and analyzed the uric acid-lowering effects and mechanisms of Chinese medicines with medicine-food homology, laying a foundation for their development as HUA agents.

Objective:To explore the changes in acoustic features of 9-10-year-old primary school students with depressive symptoms, and based on these features and the random forest (RF) algorithm, construct a model for identifying depressive symptoms in primary school students, so as to provide an intelligent psychological health screening tool for schools and education departments.Methods:This was a case-control study.A total of 1 186 primary school students aged 9-10 from three primary schools in three regions of Jiangsu Province were selected as research subjects for psychological health screening from October 26, 2022 to February 13, 2023.Their demographic data, Depression-Anxiety-Stress Scale (DASS-21) scores, Insomnia Severity Index scores, and voice recordings were collected.Based on the DASS-21 scores, the participants were divided into a control group ( n=1 086) and a depression group ( n=100).Voice recordings were made using the neutral text " The North Wind and the Sun". openSMILE was used to extract 523 acoustic features from the pre-processed voice recordings.Group differences were assessed using independent-samples t-tests or chi-square tests.Pearson correlation analysis was conducted to examine the relationship between acoustic features and depression scores.Depressive symptoms were set as the dependent variable, and the correlated acoustic features were set as the independent variable to construct a classification model using the RF algorithm.The model performance was assessed using the receiver operating characteristic (ROC) curve, the area under the curve (AUC), precision, accuracy, recall, and F1 score. Results:Compared with the control group, the depression group showed significant differences in 105 acoustic features (44 spectral features, 49 source features, and 12 prosodic features) (all P<0.05).Correlation analysis showed that 12 acoustic features (7 spectral features, 4 source features, and 1 prosodic feature) were significantly correlated with the depression score (all P<0.05).Among the RF algorithm-based classification models, the spectral features demonstrated superior performance compared to source features and prosodic features (AUC=0.793), and the performance of the model based on the combination of these features was the best (AUC=0.818). Conclusions:Acoustic features may be an objective indicator to identify the depression of 9-10-year-old primary school students, and the classification model established based on acoustic features can identify the depressed primary school students.

Objective To gain an in-depth understanding of the real experiences,feelings and needs of fathers of premature infants in NICU regarding hospital discharge preparation,and to provide a basis for medical institutions on the development of personalized health education plans and continuous nursing care plans for discharged premature infants.Methods By the purposive sampling method,15 fathers of premature infants in NICU of a tertiary obstetrics and gynecology hospital in Zhejiang Province from April 2022 to July 2022 on the day of discharge and 6 weeks after discharge were selected for semi-structured interviews,and the interview data were analyzed using the Colazzi's phenomenological 7-step analysis.Results The experiences and needs of NICU premature fathers in discharge preparation are divided into 4 themes.1.The father's problems coexist with the growth of premature infants,such as expecting to see premature infants on the day of discharge and having confidence in discharge care,experiencing various negative emotions after discharge,and increasing empathy and sense of responsibility after discharge.2.Inadequate ability to care for oneself,including a lack of access to professional care knowledge,a need to improve nursing skills,and an overreliance on premature mothers.3.Social role conflict in the family.4.Longing for assistance,including professional medical advice and more family support.Conclusion Fathers of premature infants in the NICU coexist with negative emotions and growth experiences as they prepare for discharge,with various needs such as reducing role conflict,enhancing independent care ability,and obtaining psychological and multi-party support.To improve their discharge preparation level,nursing staff should develop a personalized health education plan as well as a continuous nursing plan.

Objective:To systematically evaluate the psychological experience of benefit finding in cancer patients.Methods:The qualitative studies on the benefit finding of cancer patients from EMBASE, PubMed, EBSCO (CINAHL + Medline) , SinoMed, China National Knowledge Infrastructure (CNKI) , VIP and Wanfang Database were systematically retrieved from the databases establishment to September 30, 2020. The authenticity evaluation tool of qualitative research of evidence-based health care center of Joanna Briggs Institute (JBI) in Australia was used for literature evaluation, and the results were summarized by the method of aggregation and integration.Results:A total of 9 literatures were included and 23 results were extracted to form 8 categories, which were summarized into 3 integration results, including personal growth of patients, positive social relations for patients and active planning for the future.Conclusions:It is found that there is benefit finding for cancer patients after suffering from cancer. Medical staff should pay attention to the psychological changes of patients, actively guide and give psychological support from different angles, so as to promote the mental health of cancer patients.

Objective:To investigate the prevalence of autism spectrum disorders (ASD)among children in kindergartens in Xi′an urban districts.Methods:A stratified cluster sampling method was adopted, and selected all children from 12 kindergartens in 6 urban districts of Xi′an.Primary screening positive children with ASD were identified by filling out the Autism Behavior Checklist (ABC) by their parents and the guardians reports, and then the beha-vioral observations were made to identify suspicious ASD children.Finally these children were diagnosed in the hospital through the autism diagnostic observation schedule, 2 nd edition (ADOS-2). The data were calculated with SPSS 18.0. Results:Totally, 38 cases with ASD were diagnosed among 5 178 children, the prevalence of children ASD in kindergartens in Xi′an urban districts was 7.3‰, and the 95% confidence interval was 4.98‰-9.62‰.The prevalence of ASD in children was statistically significant in different age groups ( χ2=9.914, P<0.05) and gender groups ( χ2=18.812, P<0.05). The accuracy of ASD screening by guardians reports is better than that by ABC. Conclusions:(1)The prevalence of ASD children in kindergartens in Xi′an urban districts is at high level in similar reports in China.If ASD children at the special education institutions and home are considered, the overall prevalence rate is higher, indicating that the prevalence of ASD children in China may be underestimated.(2)With the increase of age, the attendance rate of ASD children in kindergartens has a decreasing trend.

Objective To establish the fingerprint spectrum and assay three active components (hesperidin, salvianolic acid B and chrysophanol) in Shenshuaining granule by HPLC method. Methods The chromatographic separation was achieved on SunFireTM C₁₈ column with acetonitrile-0.1% formic acid aqueous solution as mobile phase. Gradient elution program was applied with flow rate of 1.0 ml/min, detection wavelength at 254 nm and the column temperature at 25 ℃. The fingerprint spectrum was established and three active components in Shenshuaining granule were assayed. Results There were 22 common peaks on the fingerprints after analyzing chromatograms from 10 batches of Shenshuaining granules. Good fingerprint similarities (≥0.9) between different batches and the control chromatogram were found. This method has great repeatability, stability and precision, which meets all the assay requirements. Conclusion A simple and reliable HPLC method was developed, which is suitable for the fingerprint establishment of Shenshuaining granules. It provides a method for the quality control of Shenshuaining granules.

Significantly increasing crop yield is a major and worldwide challenge for food supply and security. It is well-known that rice cultivated at Taoyuan in Yunnan of China can produce the highest yield worldwide. Yet, the gene regulatory mechanism underpinning this ultrahigh yield has been a mystery. Here, we systematically collected the transcriptome data for seven key tissues at different developmental stages using rice cultivated both at Taoyuan as the case group and at another regular rice planting place Jinghong as the control group. We identified the top 24 candi-date high-yield genes with their network modules from these well-designed datasets by developing a novel computational systems biology method, i.e., dynamic cross-tissue (DCT) network analysis. We used one of the candidate genes, OsSPL4, whose function was previously unknown, for gene editing experimental validation of the high yield, and confirmed that OsSPL4 significantly affects panicle branching and increases the rice yield. This study, which included extensive field phenotyping, cross-tissue systems biology analyses, and functional validation, uncovered the key genes and gene regulatory networks underpinning the ultrahigh yield of rice. The DCT method could be applied to other plant or animal systems if different phenotypes under various environments with the common genome sequences of the examined sample. DCT can be downloaded from https://github.com/zt-pub/DCT.

Objective To evaluate the effects of limb ischemic preconditioning on intestinal injury and brain injury induced by hepatic ischemia?reperfusion(I∕R)in rats. Methods Healthy male Wistar rats, aged 6-8 weeks, weighing 200-250 g, were divided into 3 groups(n=16 each)using a random number table: sham operation group(Sham group), hepatic I∕R group(I∕R group)and limb ischemic preconditioning group(LIP group). In LIP group, the lower limb blood flow was blocked for 10 min with an elastic rubber tourniquet at the right groin followed by 30?min reperfusion through releasing the tourni?quet. Hepatic I∕R injury was induced by occlusion of the portal vein, hepatic artery and common bile duct for 30 min followed by reperfusion in I∕R and LIP groups. Eight rats in each group were selected at 6 h of reperfusion and samples from the cardiac apex were taken for determination of plasma concentrations of tumor necrosis factor?alpha(TNF?α)and interleukin?10(IL?10)by radioimmunoassay. Then the rats were sacrificed and the small intestine tissues and brain tissues were removed. Intestinal damage was as?sessed and scored according to Chiu. The activity of myeloperoxidase(MPO)in intestinal mucosa was de?tected by colorimetric method. The pathological changes of brain tissues were examined under a light micro?scope. The ultrastructure of brain tissues was observed under an electron microscope. Eight rats in each group were randomly selected at 6 h of reperfusion, and Evans blue(EB)2 mg∕kg was injected through the caudal vein over 1 min. Then the rats were sacrificed, brain tissues were removed for measurement of EB content, and the brain water content was calculated. Results Compared with Sham group, Chiu′s score and MPO activity in intestinal tissues were significantly increased, the brain water content and EB content were increased, and the concentrations of TNF?α and IL?10 in plasma were increased in I∕R group and LIP group(P <0.05). Compared with I∕R group, Chiu′s score and MPO activity in intestinal tissues were significantly decreased, the brain water content and EB content were decreased, and plasma IL?10 concentrations were increased(P <0.05), no significant change was found in plasma TNF?α concentra?tions(P>0.05), and the pathological changes of brain tissues were significantly attenuated in LIP group. Conclusion Limb ischemic preconditioning can attenuate intestinal injury and brain injury induced by he?patic I∕R, and the mechanism may be related to inhibiting systemic inflammatory responses of rats.