[Objective]To evaluate the effect of polysaccharide from Polygonatum sibiricum on Toll-like receptor 4(TLR4)activation and clarify its antigen specific response-enhancing effect on mice.[Methods]The HEK-BlueTM hTLR4 cell line which was stably transfected with genes of human TLR4 and secreted embryonic alkaline phosphatase(SEAP)was used to quickly evaluate the activation of four different types of polysaccharide from Polygonatum sibiricum,including Polygonatum kingianum NP H2O(PKNH),Polygonatum kingianum AP H2O(PKAH),Polygonatum kingianum NP 5%EtOH(PKNEt)and Polygonatum kingianum AP 5%EtOH(PKAEt)on TLR4.C57BL/10ScNJ(TLR4-/-)mice were used to determine the relationship between the drug effect and TLR4.Ovalbumin(OVA)immunized mouse model was used to evaluate the enhancement of drug on specific immune response.The serum immunoglobulin G1(IgG1)and the cytokines related to the TLR4 signaling pathways such as tumor necrosis factor-α(TNF-α),interleukin-6(IL-6)and interferon-γ inducible protein-10(IP-10)levels were detected by enzyme-linked immunosorbent assay(ELISA),and lymphocyte proliferation was evaluated by 5-[3-(Aarboxymethoxy)phenyl]-3-(4,5-dimethyl-2-thiazolyl)-2-(4-sulfophenyl)-2H-tetrazolium innersalt(MTS)assay.The mRNA expression levels of cytokines related to the TLR4 signaling pathways was determined by reverse transcription-polymerase chain reaction(RT-PCR).[Results]TLR4 was activated most strongly by treatment of neutral polysaccharides from PKNH for 24 h(P<0.001).Compared with wild type,the cell proliferation and the expressions of TNF-α,IL-6 and IP-10 were significantly decreased in PKNH treated splenic lymphocyte from C57BL/10 ScNJ mice(P<0.001).Intragastric administration of PKNH significantly increased serum IgG1 level(P<0.01)and promoted splenic lymphocyte proliferation in OVA immunized mice(P<0.05).[Conclusion]The polysaccharide from Polygonatum sibiricum PKNH enhances the antigen specific immune response through activation of TLR4.

Objective:To investigate the application effect of a rehabilitation diary combined with self-identity psychological nursing in adolescent patients with major depressive disorder (MDD), and to provide a reference for optimizing intervention strategies for adolescent MDD.Methods:A prospective randomized controlled trial was conducted. A total of 110 adolescent patients with MDD admitted to Zhejiang Provincial People's Hospital from July 1, 2024, to January 31, 2025 were selected as research subjects by continuous sampling method. Fifty-five patients who received routine nursing care from July 1, 2024, to September 30, 2024, were assigned to the control group. Fifty-five patients who received a rehabilitation diary combined with self-identity psychological nursing from October 1, 2024, to January 31, 2025, were assigned to the combined group. The improvement status of MDD symptoms (Montgomery-Asberg Depression Rating Scale), interpersonal relationship (Interpersonal Relationship Assessment Scale), social function (Social Disability Screening Schedule), et al, were compared between groups.Results:A total of 110 patients were included. In the control group, there were 29 males and 26 females, aged (15.38 ± 1.35) years old. In the combined group, there were 28 males and 27 females, aged (15.17 ± 1.36) years old. Before the intervention, there were no statistically significant differences in the improvement of MDD symptoms, interpersonal relationships, and social functions between the two groups of patients (all P>0.05). After 4 and 8 weeks of intervention, the scores of the Montgomery-Asberg Depression Rating Scale and the Social Disability Screening Schedule in the combined group were 25.47 ± 4.12, 22.35 ± 4.29, 12.41 ± 1.68, 11.02 ± 1.32, respectively, which were lower than those of the control group 30.16 ± 5.32, 27.29 ± 4.61, 14.18 ± 1.32, 12.45 ± 2.27, the differences were statistically significant ( t values were 4.04-6.49, all P<0.05). After 8 weeks of intervention, the scores of interpersonal communication, interpersonal friendship, dealing with people and matters, opposite-sex interaction of the Interpersonal Relationship Assessment Scale in the combined group were 4.62 ± 0.53, 4.28 ± 0.38, 4.35 ± 0.61, 3.97 ± 0.28 respectively, which were lower than those of the control group 5.37 ± 0.41, 5.32 ± 0.79, 5.28 ± 0.53, 4.86 ± 0.64, and the differences were statistically significant ( t values were 8.30-9.45, all P<0.05). Conclusions:Rehabilitation diary combined with self-identity psychological nursing intervention for adolescent MDD patients can improve the depression symptoms, interpersonal relationship and social function, and enhance the treatment compliance and quality of life.

[Objective]To evaluate the effect of polysaccharide from Polygonatum sibiricum on Toll-like receptor 4(TLR4)activation and clarify its antigen specific response-enhancing effect on mice.[Methods]The HEK-BlueTM hTLR4 cell line which was stably transfected with genes of human TLR4 and secreted embryonic alkaline phosphatase(SEAP)was used to quickly evaluate the activation of four different types of polysaccharide from Polygonatum sibiricum,including Polygonatum kingianum NP H2O(PKNH),Polygonatum kingianum AP H2O(PKAH),Polygonatum kingianum NP 5%EtOH(PKNEt)and Polygonatum kingianum AP 5%EtOH(PKAEt)on TLR4.C57BL/10ScNJ(TLR4-/-)mice were used to determine the relationship between the drug effect and TLR4.Ovalbumin(OVA)immunized mouse model was used to evaluate the enhancement of drug on specific immune response.The serum immunoglobulin G1(IgG1)and the cytokines related to the TLR4 signaling pathways such as tumor necrosis factor-α(TNF-α),interleukin-6(IL-6)and interferon-γ inducible protein-10(IP-10)levels were detected by enzyme-linked immunosorbent assay(ELISA),and lymphocyte proliferation was evaluated by 5-[3-(Aarboxymethoxy)phenyl]-3-(4,5-dimethyl-2-thiazolyl)-2-(4-sulfophenyl)-2H-tetrazolium innersalt(MTS)assay.The mRNA expression levels of cytokines related to the TLR4 signaling pathways was determined by reverse transcription-polymerase chain reaction(RT-PCR).[Results]TLR4 was activated most strongly by treatment of neutral polysaccharides from PKNH for 24 h(P<0.001).Compared with wild type,the cell proliferation and the expressions of TNF-α,IL-6 and IP-10 were significantly decreased in PKNH treated splenic lymphocyte from C57BL/10 ScNJ mice(P<0.001).Intragastric administration of PKNH significantly increased serum IgG1 level(P<0.01)and promoted splenic lymphocyte proliferation in OVA immunized mice(P<0.05).[Conclusion]The polysaccharide from Polygonatum sibiricum PKNH enhances the antigen specific immune response through activation of TLR4.

Objective:To explore the application of three-level task-driven teaching based on motivational regulation strategy in training nurse interns in the Department of Clinical Psychology.Methods:This study included 80 nurse interns in the Department of Clinical Psychology at Zhejiang Provincial People's Hospital between June 2021 and May 2024 as research subjects. They were divided into a control group ( n=40) and an experimental group ( n=40). The control group received traditional teaching, while the experimental group received three-level task-driven teaching based on motivational regulation strategy, covering basic knowledge mastery, practical operation improvement, and comprehensive ability enhancement. Through scenario guidance and simulation exercises, the intrinsic motivation of nurse interns was stimulated. The assessment scores, self-learning ability, teaching quality, and recognition of teaching were compared between the two groups of nurse interns. Results:After teaching, the experimental group scored higher than the control group on theoretical assessment [(86.05±5.86) vs. (74.35±4.72)] and operational skill assessment [(88.18±5.67) vs. (82.65±6.09)] ( P<0.001). The total score and scores of various dimensions of teaching quality were higher in the experimental group compared to those in the control group ( P<0.001). After teaching, the total score and scores of various dimensions of self-learning ability of both groups were higher than those before teaching, and the scores were higher in the experimental group than in the control group ( P<0.05). Conclusions:The three-level task-driven teaching based on motivational regulation strategy can significantly improve the assessment scores, self-learning abilities, and teaching quality of nurse interns in the Department of Clinical Psychology. Additionally, this method can enhance their recognition of nursing internship teaching. This teaching method is worth promoting.

Objective:To investigate the application effect of a rehabilitation diary combined with self-identity psychological nursing in adolescent patients with major depressive disorder (MDD), and to provide a reference for optimizing intervention strategies for adolescent MDD.Methods:A prospective randomized controlled trial was conducted. A total of 110 adolescent patients with MDD admitted to Zhejiang Provincial People's Hospital from July 1, 2024, to January 31, 2025 were selected as research subjects by continuous sampling method. Fifty-five patients who received routine nursing care from July 1, 2024, to September 30, 2024, were assigned to the control group. Fifty-five patients who received a rehabilitation diary combined with self-identity psychological nursing from October 1, 2024, to January 31, 2025, were assigned to the combined group. The improvement status of MDD symptoms (Montgomery-Asberg Depression Rating Scale), interpersonal relationship (Interpersonal Relationship Assessment Scale), social function (Social Disability Screening Schedule), et al, were compared between groups.Results:A total of 110 patients were included. In the control group, there were 29 males and 26 females, aged (15.38 ± 1.35) years old. In the combined group, there were 28 males and 27 females, aged (15.17 ± 1.36) years old. Before the intervention, there were no statistically significant differences in the improvement of MDD symptoms, interpersonal relationships, and social functions between the two groups of patients (all P>0.05). After 4 and 8 weeks of intervention, the scores of the Montgomery-Asberg Depression Rating Scale and the Social Disability Screening Schedule in the combined group were 25.47 ± 4.12, 22.35 ± 4.29, 12.41 ± 1.68, 11.02 ± 1.32, respectively, which were lower than those of the control group 30.16 ± 5.32, 27.29 ± 4.61, 14.18 ± 1.32, 12.45 ± 2.27, the differences were statistically significant ( t values were 4.04-6.49, all P<0.05). After 8 weeks of intervention, the scores of interpersonal communication, interpersonal friendship, dealing with people and matters, opposite-sex interaction of the Interpersonal Relationship Assessment Scale in the combined group were 4.62 ± 0.53, 4.28 ± 0.38, 4.35 ± 0.61, 3.97 ± 0.28 respectively, which were lower than those of the control group 5.37 ± 0.41, 5.32 ± 0.79, 5.28 ± 0.53, 4.86 ± 0.64, and the differences were statistically significant ( t values were 8.30-9.45, all P<0.05). Conclusions:Rehabilitation diary combined with self-identity psychological nursing intervention for adolescent MDD patients can improve the depression symptoms, interpersonal relationship and social function, and enhance the treatment compliance and quality of life.

Toxoplasma gondii is an opportunistic pathogenic protozoan that causes zoonotic toxoplasmosis and is capable of infecting almost all warm-blooded animals,including humans.T.gondii infection is a globally prevalent zoonosis,posing a particularly high risk to immunocompromised populations.It presents a serious threat to public health and animal husbandry due to its complex life cycle and wide host range.Currently,the prevention and treatment of toxoplasmosis rely primarily on drugs,with a combination of sulfadiazine and pyrimethamine being the first choice in clinical practice.However,limitations in efficacy,side effects,and drug resistance restrict its widespread use.While some progress has been made in the development of anti-Toxoplasma drugs,no ideal treatment has yet been approved for market release or clinical trials.This paper reviews recent progress on the mechanisms of action and targets of novel anti-Toxoplasma drugs based on relevant studies.It aims to provide new ideas for future drug research and development while highlighting the opportunities and challenges in the field.

In 2023, nonalcoholic fatty liver disease was renamed metabolic dysfunction-associated steatotic liver disease by the American and European liver associations. This new nomenclature recognizes metabolic dysfunction as the central driver of the disease, and the diagnostic criteria now require the presence of hepatic steatosis plus at least one of five cardiometabolic risk factors. B-mode ultrasonography remains the most common and practical method for detecting hepatic steatosis, although newer ultrasound techniques based on attenuation, backscatter, and speed of sound have gained traction as tools to diagnose and quantify hepatic steatosis. Additionally, ultrasound elastography is increasingly used in routine clinical practice to assess liver fibrosis, diagnose cirrhosis, and identify clinically significant portal hypertension.

In 2023, nonalcoholic fatty liver disease was renamed metabolic dysfunction-associated steatotic liver disease by the American and European liver associations. This new nomenclature recognizes metabolic dysfunction as the central driver of the disease, and the diagnostic criteria now require the presence of hepatic steatosis plus at least one of five cardiometabolic risk factors. B-mode ultrasonography remains the most common and practical method for detecting hepatic steatosis, although newer ultrasound techniques based on attenuation, backscatter, and speed of sound have gained traction as tools to diagnose and quantify hepatic steatosis. Additionally, ultrasound elastography is increasingly used in routine clinical practice to assess liver fibrosis, diagnose cirrhosis, and identify clinically significant portal hypertension.

ObjectiveIn the realm of forensic science, dust is a valuable type of trace evidence with immense potential for intricate investigations. With the development of DNA sequencing technologies, there is a heightened interest among researchers in unraveling the complex tapestry of microbial communities found within dust samples. Furthermore, striking disparities in the microbial community composition have been noted among dust samples from diverse geographical regions, heralding new possibilities for geographical inference based on microbial DNA analysis. The pivotal role of microbial community data from dust in geographical inference is significant, underscoring its critical importance within the field of forensic science. This study aims to delve deeply into the nuances of fungal community composition across the urban landscapes of Beijing, Fuzhou, Kunming, and Urumqi in China. It evaluates the accuracy of biogeographic inference facilitated by the internal transcribed spacer 2 (ITS2) fungal sequencing while concurrently laying a robust foundation for the operational integration of environmental DNA into geographical inference mechanisms. MethodsITS2 region of the fungal genomes was amplified using universal primers known as 5.8S-Fun/ITS4-Fun, and the resulting DNA fragments were sequenced on the Illumina MiSeq FGx platform. Non-metric multidimensional scaling analysis (NMDS) was employed to visually represent the differences between samples, while analysis of similarities (ANOSIM) and permutational multivariate analysis of variance (PERMANOVA) were utilized to statistically evaluate the dissimilarities in community composition across samples. Furthermore, using Linear Discriminant Analysis Effect Size (LEfSe) analysis to identify and filter out species that exhibit significant differences between various cities. In addition, we leveraged SourceTracker to predict the geographic origins of the dust samples. ResultsAmong the four cities of Beijing, Fuzhou, Kunming and Urumqi, Beijing has the highest species richness. The results of species annotation showed that there were significant differences in the species composition and relative abundance of fungal communities in the four cities. NMDS analysis revealed distinct clustering patterns of samples based on their biogeographic origins in multidimensional space. Samples from the same city exhibited clear clustering, while samples from different cities showed separation along the first axis. The results from ANOSIM and PERMANOVA confirmed the significant differences in fungal community composition between the four cities, with the most pronounced distinctions observed between Fuzhou and Urumqi. Notably, the biogeographic origins of all known dust samples were successfully predicted. ConclusionSignificant differences are observed in the fungal species composition and relative abundance among the cities of Beijing, Fuzhou, Kunming, and Urumqi. Employing fungal ITS2 sequencing on dust samples from these urban areas enables accurate inference of biogeographical locations. The high feasibility of utilizing fungal community data in dust for biogeographical inferences holds particular promise in the field of forensic science.

Objective:To assess the efficacy and safety profile of antaitasvir phosphate combined with yiqibuvir in the treatment of chronic hepatitis C (CHC) of various genotypes, without cirrhosis or with compensated cirrhosis.Methods:394 cases with CHC from 22 centers were collected from October 2021 to April 2023. They were randomly assigned to receive either the experimental drugs (antaitasvir phosphate 100 mg+yiqibuvir 600 mg) or placebo treatment in a 3∶1 ratio. The patients were administered drugs once a day for 12 consecutive weeks, and then followed up for 24 weeks after treatment cessation. All subjects were unblinded at the four-week follow-up following drug discontinuation, with the experimental drug group continuing to complete subsequent post-discontinuation follow-up. The placebo group was switched to receive the experimental drugs for a repeated 12-week treatment period and followed up for another 24 weeks after discontinuation of the drug (placebo delayed treatment phase).The sustained virologic response rate (SVR12) was observed for subjects in the double-blind phase and the placebo delayed-treatment phase at 12 weeks after treatment cessation.Virological resistance analysis was performed on subjects who failed treatment. The primary efficacy endpoint was SVR12. The number and percentage of subjects who achieved "HCV RNA