Objective:To explore the trajectory and predictors of depressive symptoms in disabled middle-aged and elderly adults in China.Methods:Survey data from the 2013-2020 China Health and Retirement Longitudinal Study (CHARLS) data of disabled middle-aged and elderly adults were selected to analyze the trajectory categories of depressive symptom in disabled middle-aged and elderly adults and to explore their predictors.Results:A total of 1 844 disabled middle-aged and elderly adults were analyzed for survey data. The trajectory of depressive symptoms in disabled middle-aged and elderly adults was categorized into four groups, including a low-level depression group, a depression remission group, a high-level depression group, and a depression worsening group. Logistic regression analyses revealed that gender, age, place of residence, chronic disease, self-rated health, social participation, cognition, and hearing ability were predictors of trajectories of depressive symptoms in disabled middle-aged and elderly adults.Conclusions:There is group heterogeneity in the trajectory of depressive symptoms among disabled middle-aged and elderly adults. Healthcare professionals can carry out targeted health management according to the characteristics of different categories of people.

Objective:To explore the trajectory and predictors of depressive symptoms in disabled middle-aged and elderly adults in China.Methods:Survey data from the 2013-2020 China Health and Retirement Longitudinal Study (CHARLS) data of disabled middle-aged and elderly adults were selected to analyze the trajectory categories of depressive symptom in disabled middle-aged and elderly adults and to explore their predictors.Results:A total of 1 844 disabled middle-aged and elderly adults were analyzed for survey data. The trajectory of depressive symptoms in disabled middle-aged and elderly adults was categorized into four groups, including a low-level depression group, a depression remission group, a high-level depression group, and a depression worsening group. Logistic regression analyses revealed that gender, age, place of residence, chronic disease, self-rated health, social participation, cognition, and hearing ability were predictors of trajectories of depressive symptoms in disabled middle-aged and elderly adults.Conclusions:There is group heterogeneity in the trajectory of depressive symptoms among disabled middle-aged and elderly adults. Healthcare professionals can carry out targeted health management according to the characteristics of different categories of people.

Objective To evaluate the effect of Internet-based psychosocial intervention for primary caregivers of patients with terminal stage cancer.Methods The relevant randomized controlled trials of Internet-based psychosocial intervention for primary caregivers of patients with terminal stage cancer were systematically searched from 10 databases,such as Chinese Biomedical Literature Database,CNKI,PubMed,Embase and CINAHL and etc.The search period was from the establishment to December 18,2023,and 2 investigators screened the literature according to inclusion and exclusion criteria and extracted data.Cochrane Manual 5.1.0 was used to assess the quality of the literature.Meta-analysis was performed using Revman 5.4 software.Results A total of 9 pieces of the literature including 592 primary caregivers were included.Meta-analysis showed that Internet-based psychosocial intervention reduced the level of anxiety and depression for primary caregivers of patients with terminal stage cancer[MD=-1.64,95％CI(-2.68,-0.59),P=0.002]and the burden of care[SMD=-0.39,95％CI(-0.60,-0.18),P＜0.001],and improved quality of life[SMD=0.25,95％CI(0.01,0.48),P=0.040];further research is needed to explore the effect of reducing the level of distress[MD=-0.88,95％CI(-1.91,0.16),P=0.100].Conclusion The Internet-based psychosocial intervention is effective in improving the anxiety,depression and the burden of care of the primary caregivers of patients with terminal stage cancer,and it can improve the quality of life;further research is needed to explore the level of distress reduction.

Serious diseases and other negative events bring serious physical and mental damage to individuals, but there are still some individuals can construct positive meaning of life from adversity, which is closely related to the role of benefit finding. According to the theory of stress system, if negative events such as disease are taken as stressors, benefit finding can be regarded as a good manifestation of individual psychological stress response. At present, most of the studies on benefit finding are cross-sectional studies, ignoring the characteristics of its dynamic development and the predictive role of individual advantages and disadvantages on benefit finding. This paper reviews the predictive factors in the longitudinal study of benefit finding from protective factors and risk factors, in order to reduce the adverse effects of risk factors on the basis of exploring individual protective factors and provide a starting point for the research design of positive psychological cognitive intervention.

Objective:To investigate the prevalence and potential classification of symptoms after total knee arthroplasty (TKA) in patients with knee osteoarthritis (KOA), and to analyze the differences in demographic characteristics and surgical data, compare the different potential subgroups, in order to provide a basis for clinical symptom management plans.Methods:This study was a multicenter cross-sectional survey. Through convenience sampling, patients with KOA undergoing TKA in the orthopaedic wards of four tertiary hospitals in Urumqi were selected as the study from November 2023 to February 2024. The study subjects were surveyed using a general information questionnaire, the Visual Analogue Scale (VAS) for pain, the Hospital Anxiety and Depression Scale (HADS), and the Pitts Burgh Sleep Quality Index (PSQI), and the degree of postoperative joint swelling and size of ecchymosis were measured. Latent class analysis was performed using Mplus 8.3 software, and Logistic regression analysis was conducted using SPSS 26.0 software to explore the influencing factors of the latent classes.Results:Totally 337 effective questionnaires were collected, and the recovery rate was 94.7% (337/356), and the age distribution ranged from 47 to 85 (65.19 ± 6.99) years old, with 90 (26.7%) males and 247 (73.3%) females. There were 92.3% (311/337) of TKA patients with postoperative symptom cluster. The symptom cluster of patients with TKA were identified as 3 classes. They were named as "high level pain-psychological disorder group"(12.5%, 39/311), "high bruises-moderate psychological disorders group"(25.4%, 79/311) and "low symptom burden group" (62.1%, 193/311). The results of the unordered multi-class logistic regression analysis showed that age 45-59 years ( OR = 2.367), body mass index 24.0-27.9 kg/m 2 ( OR = 0.207), living with children/parents ( OR = 6.473), and this being the second joint surgery ( OR = 0.040) were the factors influencing the "high level pain-psychological disorders group" (all P<0.05). The factors influencing the "high bruises-moderate psychological disorders group" were living with children/parents ( OR = 4.023), comorbid chronic diseases ( OR = 1.979, 3.842), and intraoperative blood loss ≤100 ml ( OR = 2.342) (all P<0.05). Conclusions:The postoperative symptom cluster of TKA patients have a relatively high incidence, and there is heterogeneity within the symptom cluster, so nurses need to identify at-risk patients early according to the characteristics of different categories and give interventions.

Objective To develop a catalytic hairpin assembly(CHA)-based fluorescent assay for the detection of the target RNA of severe acute respiratory syndrome coronavirus-2(SARS-CoV-2),so as to realize the rapid nucleic acid testing of SARS-CoV-2.Methods A 24-nt segment of the SARS-CoV-2 nucleocapsid protein gene(N gene,NC_045512.2)was chosen as the target RNA and the hairpin motif 1(H1)and hairpin motif 2(H2)were designed based on the principle of CHA reaction.The H1 motif was labelled with a fluorophore group as well as a quencher group.When the target RNA was added to the hairpin motifs,CHA reaction was triggered at room temperature(25℃),which led to the amplification of fluorescence signal,thereby enabling the rapid detection of the target RNA.After the optimization of the hairpin motifs and the experimental conditions,the sensitivity and the specificity of the testing method were measured to evaluate its performance.Results We successfully constructed a CHA-based fluorescent assay specifically for the target RNA of SARS-CoV-2.With this method,testing could be completed at room temperature within 30 min.This testing method exhibited excellent specificity and could be used to accurately distinguish the perfectly-matched target RNA from the target RNA with single-base mutations.In addition,the testing method demonstrated good sensitivity,with a detection limit of 50 pmol/L.Conclusion The proposed assay enables the simple and rapid detection of the SARS-CoV-2 target RNA with excellent sensitivity and specificity,showing great promise for further optimization and subsequent clinical application for the rapid detection of SARS-CoV-2 nucleic acid.

We investigated correlation between the level of miR-16 expression and the severity of Staphylococcus aureus sepsis,and further explored its potentially clinical significance.Blood samples were collected from 32 patients,including each 8 cases of septic shock,severe sepsis and general sepsis,as well as 8 cases of healthy volunteers.Blood samples from 24 cases of healthy subjects with different ages were measured,and additionally 8 cases of blood samples from gram negative bacteria sepsis were also determined in current study as a control.Trizol solution for the whole blood lysis was added into blood samples,and followed by the extraction of microRNA.The expression levels of miR-16 in different groups were measured by fluorescence quantitative PCR,in which 2-Delta Ct method was used.SPSS software (version 13.0) was used to analyze the statistical differences between the groups,and further analyze the correlation between miR-16 value and the corresponding CRP and PCT values.Results showed that the expression level of miR-16 was negatively correlated with the severity of Staphylococcus aureus sepsis.There were statistically significant differences in experimental groups when compared with the control (P＜0.001),and there was also a statistically significant difference between each experimental group (P＜0.01).We found that the expression level of miR-16 was negatively correlated with CRP and PCT,the correlation coefficients were-0.561 and-0.769 respectively,and trend analysis showed that there was a significantly negative correlation.A significantly negative correlation was found between the miR-16 expression level and severity of sepsis,suggesting that miR-16 may serve as a biomarker for the severity of Staphylococcus aureus sepsis.

OBJECTIVESome of the phenolic compounds detected in the soil of commercially cultivated American ginseng could inhibit the seed germination and seedling growth of American ginseng. In this paper we studied the root exudation of American ginseng induced by deficiency of nitrogen, phosphorus and potassium on the content of phenolic compounds.

METHODTwo years old American ginsengs were cultured in hydroponic culture with different nutrient solution. The culture solution was collected after 14 days. The exudations of different polarities in the culture solution were enriched by the amberlite XAD4 and XAD7. The content of the total phenolic acids in the exudation was analyzed by Folin-Ciocalteu colorimetry; the contents of vanillic acid, p-coumaric acid and trans-cinnamic acid were detected and quantified by HPLC.

RESULTBoth in the situation of nitrogen and potassium deficiency, the concentration of total phenolic compounds increased significantly in the exudation of American ginseng comparing with the complete nutrient solution (P < 0.05) , while decreased significantly under phosphorus deficient conditions (P < 0.05). The contents of the 3 autotoxic phenolic acids decreased significantly under nitrogen, phosphorus and potassium deficient conditions (P < 0.05).

CONCLUSIONThe contents of total phenolic compounds and the 3 autotoxic phenolics in the root exudation of American ginseng altered variously in the deficiency of nitrogen, phosphorus and potassium.

Coumaric Acids ; analysis ; Hydroxybenzoates ; analysis ; Nitrogen ; deficiency ; Panax ; chemistry ; metabolism ; Phosphorus ; deficiency ; Plant Exudates ; chemistry ; Plant Roots ; chemistry ; metabolism ; Potassium ; chemistry ; Propionates ; Soil ; chemistry ; Vanillic Acid ; analysis

Serum sialic acid (SA) levels were detected by neuraminidase method in 366 patients with malignant tumor, 40 patients with benign diseases and 40 healthy subjects.For 277 malignant tumor patients, serum SA levels were monitored before and after treatment.The serum SA levels in malignant tumor group were significantly higher than those in benign diseases and control groups (P ＜0.01 ), but there were no differences between normal and benign groups (P ＞0.05 ).Serum SA levels were decreased in malignant tumor patients with remission and stable disease after treatment.In remission or stable patients the decrease of serum SA levels occurred in the first three months and no changes were found from the fourth to sixth month; meanwhile SA levels were elevated in patients with instablc condition.

ObjectiveTo investigate the efficacy of mifepristone with or without tamoxifen in the treatment of leiomyomas. Methods173 symptomatic patients with leiomyomas were divided into 2 groups randomly. Group A (88cases) received mifepristone 25mg per day;Group B(85 cases) received mifepristone per day combined with tamoxifen l0mg twice a day from the first day of menstrul cycle for three months. Leiomyoma and uterine size were measured by B ultrasound, the changes of endometrium were examined pathologically. Estrogen and progesterone levels, hemoglobin and liver renal function were all measured, meanwhile, adverse effects of drugs were assessed. ResultsAll the patients in the 2 groups were amenorrhea with increased hemoglobin, the level of estrogen and progesterone remained in the early stage of proliferation phase. The uterus and leiomyoma sizes in two groups both reduced, but those in group B reduced less significantly(P＜0.01). Adverse effects showed similarity and needed no special control. ConclusionsBoth mifepristone and mifepristone combined with tamoxifen show good efficacy in the treatment of leiomyoma, but mifepristone combined with tamoxifen is more suitable.