Objective To assess the anti-skin photoaging properties of total flavonoids(TFT)extracted from the Chinese herb tulip,a preliminary analysis of its mechanism in combating skin photoaging were conducted.Methods UVB-induced photoaging mouse model was used to assess the anti-skin photoaging effects of TFT.A network pharmacology approach was used to conduct a preliminary analysis of TFT's mechanism of action against skin photoaging.Furthermore,molecular simulation was employed to predict the interactions between the active ingredients and target proteins.Results Treatment with TFT effectively improved skin condition in UVB-induced photoaging mice.The mechanism of action of TFT against skin photoaging likely involved the regulation of transcription factors such as NF-κB and AP-1,modulation of SASPs transcription,and inhibition of MMPs activity.Conclusion TFT is an effective anti-skin photoaging ingredient that deserves further research and development.

Objective To assess the anti-skin photoaging properties of total flavonoids(TFT)extracted from the Chinese herb tulip,a preliminary analysis of its mechanism in combating skin photoaging were conducted.Methods UVB-induced photoaging mouse model was used to assess the anti-skin photoaging effects of TFT.A network pharmacology approach was used to conduct a preliminary analysis of TFT's mechanism of action against skin photoaging.Furthermore,molecular simulation was employed to predict the interactions between the active ingredients and target proteins.Results Treatment with TFT effectively improved skin condition in UVB-induced photoaging mice.The mechanism of action of TFT against skin photoaging likely involved the regulation of transcription factors such as NF-κB and AP-1,modulation of SASPs transcription,and inhibition of MMPs activity.Conclusion TFT is an effective anti-skin photoaging ingredient that deserves further research and development.

ObjectiveTo analyze the epidemiological characteristics and etiology of clustered outbreaks of hand， foot， and mouth disease （HFMD） in Pudong New Area， Shanghai from 2017 to 2022， and to provide a scientific basis for the prevention and control of HFMD in the area. MethodsThe data related to HFMD clustered outbreaks from 2017 to 2022 were obtained from the Pudong New Area HFMD outbreak database. Descriptive analysis was conducted to explore the outbreak scope， seasonal characteristics， distribution of occurrence settings， and etiological composition. ResultsFrom 2017 to 2022， Pudong New Area reported a total of 2 547 HFMD clusters， involving 8 884 cases， with an average of 3.49 cases per event. The majority of events （78.52%） had between 2 and 4 cases. The peak reporting periods for clustered HFMD from 2017 to 2019 and in 2021 were during the summer （May‒July） and autumn （September‒November）. The seasonal pattern was less distinct in 2020 and 2022， likely due to the impact of the COVID-19 pandemic. The majority of clustered outbreaks occurred in childcare facilities （44.64%）， followed by households/neighborhood committees （44.21%）， with schools accounting for a smaller proportion （12.39%）. The etiology revealed the coexistence of multiple enterovirus genotypes， with a positive detection rate of 60.46%， and CoxA6 being the dominant strain. ConclusionHFMD clustered outbreaks in Pudong New Area show fluctuating trends， with significant yearly differences in the number of incidents. The predominant seasons for outbreaks are summer and autumn， with CoxA6 identified as the dominant strain. The implementation of prevention and control measures for COVID-19 significantly reduced the occurrence of HFMD outbreaks. Continuous monitoring and focus on large-scale clustered outbreaks in key institutions are essential for the future.

Objective:To understand the molecular transmission characteristics of human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome(AIDS) patients in the mountainous area of southwest Zhejiang Province(Lishui city).Methods:A total of 147 blood samples were collected from newly-diagnosed HIV-1 infected who received no antiviral therapy, and pol gene was amplified, followed by sequencing. MEGA6.0 software was used to construct phylogenetic tree and determine gene subtypes. HIVDB online was used to analyze drug resistance mutation, then the pairwise genetic distance(GD) was calculated and the opitimal threshold of GD was selected, finally the molecular transmission network was constructed by Cytoscape3.7.0 software. Chi-square or Fisher′s exact probability method was used for statistical analysis. Results:A total of 134 sequences were obtained successfully, and nine subtypes were detected. The dominant subtypes were CRF08_BC (34.33%, 46/134), CRF01_AE (29.85%, 40/134) and CRF07_BC (23.88%, 32/134). It also found that age, registered residence, education level and transmission route had significant differences in distribution of subtypes ( P<0.05). Nineteen drug resistance individuals were found, and the total drug resistance rate was 14.18% (19/134). The HIV-1 molecular transmission network was plotted based on 1.2% GD threshold. A total of 15 transmission clusters (cluster size ranging from 2 to 29) were found. The network access rate was 49.25% (66/134), mainly including male (75.76%, 50/66), heterosexual (81.82%, 54/66) and patientsrinfected with CRF08_ BC (50.00%, 33/66). A transmission cluster including two cases of female sex workers and seven cases of drug resistance was identified, in which the average age of the patients was 57.21 years old and the average degree value was 22.7, and the cases were mainly infected through heterosexual contact (96.55%, 28/29). The highest homology of the sequences in the cluster was in Yunnan. Conclusions:The HIV-1 subtypes were diverse in the mountainous area of southwest Zhejiang Province(Lishui city). Drug resistant transmission had reached a moderate epidemic level. There were molecular transmission clusters with the aggregation characteristics of elderly clients in specific regions. It was urgent to formulate and implement precise intervention strategies to curb the spread of HIV.

Objective To explore the related risk factors of cerebrovascular disease induced cerebral microbleeds and its nursing strategies. Methods A total of 393 patients with acute cerebrovascular disease who were admitted to our hospital from January 2012 to January 2014 were selected. 146 patients who were hospitalized due to non-central ner-vous system disease at the period of time were selected as control group. Baseline data of patients were recorded, and regular MRI T2-weighted imaging were given to all patients. Incidence rate of cerebral microbleeds for patients with different types of cerebrovascular diseases was analyzed. Results Among 393 patients with acute cerebrovascular dis-ease, 206 patients were cerebral microbleeds. Incidence rate was different for different diseases. Incidence rate of hy-pertension was 47.20%, cerebral infarction was 45.98%, diabetes was 44.00%, atrial fibrillation was 50.00%, cerebral hemorrhage was 84.00%, TIA was 25.00%, and leukoencephalopathy was 63.24%. The incidence rate in the control group was 13.70%, except for TIA, the differences between the control group and other groups were statistically signifi-cant (P<0.05). Cerebral microbleeds were taken as dependent variables, and other risk factors were taken as independent variables. Leukoencephalopathy, hypertension, high cholesterol, asymptomatic lacuna cerebral infarction, cerebral bleeding and cerebral infarction were risk factors for cerebral microbleeds, in which low density lipoprotein was a pro-tective factor. 206 patients with cerebral microbleeds were given nursing care. 20 patients recovered and discharged, 129 patients got better, 40 patients were not recovered, 7 patients were transferred to other hospitals, and 10 patients died. The hospitalization time was 1 to 33 days, with an average of (15.3±2.3) days. Conclusion Incidence rate of cere-bral microbleeds for patients with cerebral infarction, cerebral bleeding and leukoencephalopathy is relatively high, and low density lipoprotein is the protective factors for cerebral microbleeds. Hypertension, asymptomatic lacuna cerebral infarction, cerebral bleeding, cerebral infarction, high cholesterol and leukoencephalopathy are risk factors for cerebral microbleeds. Scientific and proper nursing care for patients with cerebral microbleeds is able to significantly improve patients' recovery rate, which is worthy of further clinical promotion and application.

OBJECTIVE: The study aimed to investigate the efficacy and adverse effects of sublingual immunotherapy (SLIT) of dust mite drops to allergic rhinitis with mite allergy. The compliance and satisfaction of SLIT were also assessed. METHOD: One hundred and three patients of allergic rhinitis sensitive to dust mites were treated with SLIT for 6 months or more. The symptom questionnaire,including items on rhinorrhea, sneezing, nasal obstruction, itchy nose, olfactory disturbance, eye discomfort and sleep disturbance were obtained before and 6 months after SLIT. The patients' satisfaction and adverse effects were also investigated. RESULT: Seventy-five of the 103 patients insist on SLIT for more than 6 months and completed the questionnaire. The duration of receiving SLIT was 9.8 months on average (range from 6 to 13 months). The satisfaction rate was 89.3%. The drop-out rate of SLIT was 31.0%. CONCLUSION The subjective symptoms were improved with SLIT in patients with allergic rhinitis sensitive to dust mites. The drop out rate was high despite of the symptomatic improvement.
Adolescent ; Adult ; Aged ; Child ; Child, Preschool ; Female ; Humans ; Male ; Middle Aged ; Patient Compliance ; Patient Satisfaction ; Rhinitis, Allergic ; Rhinitis, Allergic, Perennial ; psychology ; therapy ; Sublingual Immunotherapy ; psychology ; Treatment Outcome ; Young Adult

OBJECTIVETo observe the effects of danshensu on function of endothelial progenitor cells (EPCs) from peripheral blood which were damaged by oxidative low density lipoprotein (Ox-LDL). And study its possible mechanism.

METHODTotal mononuclear cells (MNCs) were isolated from peripheral blood by ficoll density gradient centrifugation, and were identified by demonstrating the expression of CD34, VEGFR-2 and AC133 with flow cytometry, to sure that all the cells needed were EPCs. Then the cells were plated on fibronectin-coated culture dishes. After incubation for 7 days, attached cells were collected and divided into three groups: Control group, Ox-LDL group, danshensu intervention group, stimulated with different cencentrations of danshensu (2, 10 and 50 mg x L(-1)), adhesion assay respectively. EPCs adhesion assay were performed by replating those on fibronectin-coated dishes, then adherent cells were counted. And take cell supernate of each group to carry on the SOD, MDA content examination.

RESULTOx-LDL impaired EPC proliferative and adhesive capacity. In Ox-LDL group, The SOD content obviously drops, the MDA content obviously elevates. After danshensu interventing for 24 h, adhesive EPCs and migratory EPCs were significantly increased. Compared with Ox-LDL group, the SOD content of Danshensu intervention group obviously increased and the MDA content obviously reduced.

CONCLUSIONdanshensu could improve proliferative and adhesive capacity of EPCs that were impaired by Ox-LDL. The mechanism might relate to the oxidation resistance damage.

Animals ; Cell Adhesion ; drug effects ; Cell Movement ; drug effects ; Cell Proliferation ; drug effects ; Endothelium ; cytology ; Humans ; Lactates ; pharmacology ; Lipoproteins, LDL ; adverse effects ; Malondialdehyde ; metabolism ; Oxidative Stress ; drug effects ; Stem Cells ; cytology ; drug effects ; metabolism ; Superoxide Dismutase ; metabolism