ObjectiveTo explore the effects and mechanism of the modified Danggui Yinzi on "itch-anxiety" model rats of chronic urticaria （CU）. MethodsThe 36 SPF-grade 6-8-week-old female SD rats were randomly divided into a blank control group，a model group，a positive control group，a low-dose modified Danggui Yinzi group，a medium-dose modified Danggui Yinzi group，and a high-dose modified Danggui Yinzi group. A "itch-anxiety" model was established by intraperitoneal injection of a suspension of sodium chloride and aluminum hydroxide and ovalbumin，combined with chronic unpredictable emotional stress stimulation. After successful modeling，rats in each group were administered drugs by gavage. The positive control group was given intragastric administration of the drug solutions of cetirizine and fluoxetine （2.08 mg·kg^-1·d^-1 fluoxetine， 2 mg·kg^-1·d^-1 cetirizine）， the low-，medium-，and high-dose modified Danggui Yinzi groups were administered traditional Chinese medicine at 1.44，2.88， 5.76 g·kg^-1， respectively，while the blank control group and model group were given an equal volume of normal saline. All interventions lasted for 15 days. Behavioral changes were evaluated by the elevated plus-maze test （detecting the percentage of entries into the open arms （OE%），the percentage of time spent in the open arms （OT%），and the total number of entries into the open and closed arms （TNE）），the open-field test （detecting total activity，average movement speed，and latency to enter the central area），and scratching behavior observation. Pathological changes of skin tissues were observed by hematoxylin-eosin （HE） staining and toluidine blue staining，while those of amygdala tissues were observed by HE staining，Nissl staining，and immunofluorescence detection of ionized calcium-binding adapter molecule-1 （Iba-1）. The content of immunoglobulin E （IgE），interleukin-33 （IL-33），histamine in serum and glutamate in the amygdala was detected by enzyme-linked immunosorbent assay （ELISA）. Western blot was used to detect the protein expression of striatal-enriched protein tyrosine phosphatase （STEP），N-methyl-D-aspartate receptor subunit 2B （NR2B）， calmodulin-dependent protein kinase Ⅱ （CaMKⅡ），phosphorylated CaMKⅡ （p-CaMKⅡ），mitogen-activated protein kinase （MAPK），phosphorylated MAPK （p-MAPK），nuclear factor kappa-light-chain-enhancer of activated B cells （NF-κB），phosphorylated NF-κB （p-NF-κB），and postsynaptic density protein-95 （PSD-95） in the amygdala. ResultsCompared with the blank control group，the model group rats showed obvious anxiety-like behaviors （decreased OE%，OT%，and TNE，reduced total activity，slower average movement speed，and prolonged latency to enter the central area），increased scratching times，obvious skin inflammation and mast cell degranulation，severe amygdala tissue damage，increased glutamate content in the amygdala，and elevated levels of IgE and IL-33 in serum. The expression of STEP，NF-κB，p-NF-κB，NR2B，MAPK，p-MAPK，CaMKⅡ，and p-CaMKⅡ proteins in the amygdala increased，while the expression of PSD-95 protein decreased （P<0.05）. Compared with the model group，the modified Danggui Yinzi group of each dose had increased OE%，OT%，TNE，total activity，and average movement speed，shortened latency to enter the central area， reduced scratching times，alleviated skin inflammation and mast cell degranulation，relieved amygdala tissue damage，decreased glutamate content in the amygdala，and reduced levels of IgE and IL-33 in serum. Moreover，compared with the model group，the low -，medium-，and high-dose modified Danggui Yinzi groups showed decreased expression levels of STEP，NF-κB，p-NF-κB，NR2B，MAPK，p-MAPK，CaMKⅡ，and p-CaMKⅡ proteins in the amygdala，and increased expression of PSD-95 protein. There was a significant dose-effect relationship，with the high-dose group showing the most significant regulatory effect （P<0.05）. ConclusionThe modified Danggui Yinzi has a therapeutic effect on "itch-anxiety" model rats of CU. Its mechanism may be related to regulating glutamate metabolism in the amygdala，modulating the STEP/NR2B/CaMKⅡ/MAPK/NF-κB pathway，and regulating the expression of PSD-95.

This paper has summarized current studies on retinitis pigmentosa （RP） from two perspectives， which were disease mechanism insights from western medicine， and etiology， pathogenesis and therapeutic principles in traditional Chinese medicine （TCM）. From the perspective of western medicine， the understanding of RP has evolved from an early single-factor explanation focusing on pathogenic gene mutations to a more comprehensive， multifactorial model involving genetic abnormalities， photoreceptor cell degeneration， retinal pigment epithelium dysfunction， oxidative stress， inflammatory responses， microenvironmental imbalance， and vascular insufficiency. In TCM， RP is considered to be a disorder manifested in the eyes but rooted in dysfunction of the zang-fu （脏腑） organs. Its pathogenesis is primarily associated with congenital insufficiency， liver-kidney depletion， impaired spleen function of transportation and transformation， and stasis obstructing the meridians. The core pathological mechanism can be summarized as "deficiency complicated by stasis"， emphasizing holistic imbalance， dynamic disease progression， and syndrome differentiation and treatment. The differences and complementarities between the two medical systems in understanding disease progression are further discussed. RP is proposed to be more appropriately regarded as a complex disease characterized by long-term progression， stage-dependent evolution， and persistent decompensation. Western medicine contributes to elucidating the molecular mechanisms underlying RP and provides the foundation for targeted therapeutic interventions， whereas TCM offers a holistic perspective for understanding disease evolution through the assessment of overall functional status， disease-stage stratification， and long-term syndrome-based regulation.

Objective To investigate the status and predictive factors of future acute exacerbation of asthma in adults. Methods Adult patients with asthma who were admitted to the hospital from March 2023 to July 2025 were selected. Based on the acute exacerbation status after follow-up, the patients were categorized into acute exacerbation group (n=107) and control group (n=245). The clinical data, pulmonary function [peak expiratory flow (PEF) and forced expiratory volume in the 1st second/forced vital capacity (FEV₁/FVC)] and health status [asthma control questionnaire (ACQ), Morisky medication adherence scale (MMAS-8), short form 36-item health survey (SF-36)] of the study subjects were collected. The correlation between the indicators and acute exacerbation was explored by logistic regression analysis, and the predictive efficiency was evaluated by ROC curve. Results The age, smoking history, asthma course, allergen exposure and ACQ in the acute exacerbation group were higher than those in the control group, while the average monthly family income, glucocorticoid treatment, PEF, FEV₁/FVC, MMAS-8 and SF-36 were lower (P<0.05). Multivariate logistic regression suggested that ACQ score, glucocorticoid treatment, MMAS-8 score, FEV₁/FVC, PEF and smoking history were the influencing factors of acute asthma exacerbation (P<0.05). ROC analysis revealed that the diagnostic efficiency of combined prediction was the highest (AUC=0.965), with sensitivity of 0.944 and specificity of 0.857 (P<0.05). Conclusion It is necessary to pay more attention to the medication compliance and asthma control level of patients, and integrate multi-dimensional information such as smoking history, pulmonary function and treatment conditions to accurately identify patients with high-risk acute exacerbation and implement targeted intervention measures.

This paper has summarized current studies on retinitis pigmentosa （RP） from two perspectives， which were disease mechanism insights from western medicine， and etiology， pathogenesis and therapeutic principles in traditional Chinese medicine （TCM）. From the perspective of western medicine， the understanding of RP has evolved from an early single-factor explanation focusing on pathogenic gene mutations to a more comprehensive， multifactorial model involving genetic abnormalities， photoreceptor cell degeneration， retinal pigment epithelium dysfunction， oxidative stress， inflammatory responses， microenvironmental imbalance， and vascular insufficiency. In TCM， RP is considered to be a disorder manifested in the eyes but rooted in dysfunction of the zang-fu （脏腑） organs. Its pathogenesis is primarily associated with congenital insufficiency， liver-kidney depletion， impaired spleen function of transportation and transformation， and stasis obstructing the meridians. The core pathological mechanism can be summarized as "deficiency complicated by stasis"， emphasizing holistic imbalance， dynamic disease progression， and syndrome differentiation and treatment. The differences and complementarities between the two medical systems in understanding disease progression are further discussed. RP is proposed to be more appropriately regarded as a complex disease characterized by long-term progression， stage-dependent evolution， and persistent decompensation. Western medicine contributes to elucidating the molecular mechanisms underlying RP and provides the foundation for targeted therapeutic interventions， whereas TCM offers a holistic perspective for understanding disease evolution through the assessment of overall functional status， disease-stage stratification， and long-term syndrome-based regulation.

ObjectiveTo observe the effects of Youguiwan on the localization and differentiation of embryonic stem cells transplanted into ovaries，and to preliminarily explore whether its mechanism is related to the protein kinase B （Akt）/mammalian target of rapamycin （mTOR）/4E-binding protein 1 （4EBP1）/p70S6 kinase （P70S6K） signaling pathway. MethodsA total of 81 healthy adult female C57BL/6 mice that had received ovarian transplantation of GFP-labeled embryonic stem cells were randomly allocated into a control group，a Youguiwan group，and a positive control group. The control group received normal saline via gavage，the Youguiwan group was administered Youguiwan decoction at a clinical equivalent dose of 17.1 g·kg^-1，and the positive control group received human menopausal gonadotropin （HMG） injections every 48 h. Ovarian tissue samples were collected on days 7，14，and 21 post-administration. Frozen sections were prepared to observe stem cell localization. The immunofluorescence assay was used to detect growth differentiation factor 9 （GDF9） and mTOR expression. real time polymerase chain reaction（Real-time PCR） was performed to measure the mRNA levels of follicle-stimulating hormone receptor （FSHR） and luteinizing hormone receptor （LHR）. Western blotting was conducted to assess the expression and phosphorylation levels of Akt，mTOR，4EBP1，and P70S6K. ResultsFluorescence microscopy revealed that the transplanted embryonic stem cells were predominantly localized within the granular cell layer，the cell layer of the follicular structure，and the stroma. After 14 days of drug intervention，compared with the control group，the Youguiwan group showed upregulated mRNA levels of FSHR and LHR in the ovarian tissue （P<0.01），as well as elevated phosphorylation/protein ratios of Akt，mTOR，4EBP1，and P70S6K （P<0.05）. After 21 days of drug intervention，compared with the control group，the Youguiwan group exhibited enhanced expression of GDF9 and mTOR in the ovarian tissue as detected by immunofluorescence （P<0.05），along with elevated mRNA levels of FSHR and LHR （P<0.01） and phosphorylation/protein ratios of Akt and 4EBP1 （P<0.05）. ConclusionYouguiwan can promote the localization and differentiation of mouse embryonic stem cells within the ovary and enhance the expression of GDF9，FSHR，and LHR mRNA in the ovarian tissue by influencing the Akt/mTOR/4EBP1/P70S6K pathway.

Purpose: The aim of this study was to investigate the feasibility of an intelligent handheld ultrasound (US) device for assisting non-expert general practitioners (GPs) in detecting carotid plaques (CPs) in community populations. Methods: This prospective parallel controlled trial recruited 111 consecutive community residents. All of them underwent examinations by non-expert GPs and specialist doctors using handheld US devices (setting A, setting B, and setting C). The results of setting C with specialist doctors were considered the gold standard. Carotid intima-media thickness (CIMT) and the features of CPs were measured and recorded. The diagnostic performance of GPs in distinguishing CPs was evaluated using a receiver operating characteristic curve. Inter-observer agreement was compared using the intragroup correlation coefficient (ICC). Questionnaires were completed to evaluate clinical benefits. Results: Among the 111 community residents, 80, 96, and 112 CPs were detected in settings A, B, and C, respectively. Setting B exhibited better diagnostic performance than setting A for detecting CPs (area under the curve, 0.856 vs. 0.749; P<0.01). Setting B had better consistency with setting C than setting A in CIMT measurement and the assessment of CPs (ICC, 0.731 to 0.923). Moreover, measurements in setting B required less time than the other two settings (44.59 seconds vs. 108.87 seconds vs. 126.13 seconds, both P<0.01). Conclusion Using an intelligent handheld US device, GPs can perform CP screening and achieve a diagnostic capability comparable to that of specialist doctors.

Body weight abnormalities, including overweight, obesity, and underweight, have become a dual public health challenge in Chinese adults: overweight and obesity lead to a variety of chronic complications, while underweight increases the risks of malnutrition, sarcopenia, and organ dysfunction. To systematically address these issues, multidisciplinary experts in endocrinology, sports science, nutrition, and psychiatry from various regions have held multiple weight management seminars. Based on the latest epidemiological data and clinical evidence, they expanded the guideline to include assessment and intervention strategies for underweight, in addition to the core content of obesity management. This guideline outlines the etiological mechanisms, evaluation methods, and multidimensional management strategies for overweight and obesity, covering key areas such as diagnosis and assessment, medical nutrition therapy, exercise prescription, pharmacological intervention, and psychological support. It is intended to provide a scientific and standardized approach to weight management across the adult population, aiming to curb the rising prevalence of obesity, mitigate complications associated with abnormal body weight, and improve nutritional status and overall quality of life.

OBJECTIVE To explore the expressions of apolipoprotein B/apolipoprotein A1(Apo B/A1)and procalci-tonin(PCT)in peripheral blood of the acute pancreatitis(AP)patients with infectious pancreatic necrosis(IPN)and analyze the predictive values.METHODS A total of 102 patients with AP who were treated in Lishui People's Hospital from Jan.2022 to Dec.2023 were recruited as the research subjects and were divided into the IPN group with 29 cases and the non-IPN group with 73 cases according to the status of IPN.The baseline data of the two groups of patients were analyzed,the expression levels of Apo B/A1,PCT and other serologic indexes were ob-served and compared between the two groups.The values of peripheral blood Apo B/A1 and PCT in prediction of IPN in the AP patients were analyzed by means of receiver operating characteristic(ROC)curves.RESULTS There were no significant differences in the baseline data such as age and gender between the two groups of pa-tients.There were significant differences in the expression levels of peripheral blood Apo B/A1,PCT and RDW as well as blood calcium level between the IPN group and the non-IPN group(P＜0.05);the expression levels of pe-ripheral blood Apo B/A1 and PCT of the IPN group were respectively(2.54±0.75)and(11.77±3.21)ng/ml,higher than those of the non-IPN group(t=8.712,12.095,all P＜0.001);the blood calcium level of the IPN group was(2.22±0.22)mmol/L,lower than that of the non-IPN group(t=2.749,P=0.007).There were no sig-nificant differences in other serologic indexes.ROC curve analysis showed that both the single and joint detection of peripheral blood Apo B/A1 and PCT had the predictive efficiency for IPN in the AP patients(P＜0.05),the ar-eas under the curves(AUCs)were 0.886,0.874 and 0.922,respectively;the efficiency of the joint detection of the two indexes was the highest,with the sensitivity 82.72％,the specificity 86.30％.CONCLUSIONS The peripheral blood Apo B/A1,PCT,RDW and blood calcium are the influencing factors for the IPN in the AP patients.The joint detection of Apo B/A1 and PCT can predict the IPN for the AP patients in early stage.

This study was analyzed the spatial-temporal distribution and aggregation characteristics of Yersinia pestispositive host animals and vector pathogens in marmot natural foci in the Qilian-Altun mountains,Gansu Province,to provide a scientific basis for precise plague prevention and control.Y.pestissurveillance data for marmot natural foci in Qilian-Altun Mountains of Gansu Province from 2014 to 2023 were obtained from the Disease Control and Prevention Center of Gansu Province.Origin 2024 software was used for data visualization and presentation.Global and local spatial autocorrelation analyses and trend analyses were conducted in ArcGIS 10.8 software,with townships as the spatial scale.Cumulatively,440 strains of Y.pestis were isolated from the natural marmot foci in the Qilian-Altun mountainsof Gansu Province from 2014 to 2023.Most strains was isolated from marmots(345 strains,78.41%),and the remainder were isolated from vectors.Temporal distribution analysis indicated that the highest number of detected bacteria was reported in July and August(both 121 strains,27.50%).Regional distribution analysis revealed that Aksai County reported the highest number of detected bacteria(255 strains,57.95%).Global spatial autocorrelation analysis showed a spatially clustered distribution of the number of bacteria detected annually in the townships containing natural foci,except in2014,2016,and 2021-2023.The strongest spatial clustering was observed in 2020(Moran's I=0.521 2,Z=14.397 0,P<0.001).Local spatial autocorrelation analysis indicated a"high-high"aggregation area in the natural foci every year from 2014 to 2023,primarily in Hongliuwan Town of Aksai County and Dangchengwan Town of Subei County.The distribution of the"low-low"aggregation area was essentially consistent with the low activity area of the Yersinia pestisepidemic.The trend in annual total bacterial count gradually increased from east to west,and peaked in the western part of the epidemic focus.Clear spatial aggregation characteristics of the number of Y.pestis were detected in the marmot natural foci in the Qilian-Altun mountains at the townshiplevel as a whole in Gansu Province from 2014 to 2023.The aggregation area was mainly in the western section of Qilian Mountain to the Altun mountain section of the epidemic source area.Monitoring and prevention and control efforts should be focused in this key area,with prevention and control measures tailored to the local conditions,and classified guidance to decrease the risk of plague occurrence and spread.

Purpose: The aim of this study was to investigate the feasibility of an intelligent handheld ultrasound (US) device for assisting non-expert general practitioners (GPs) in detecting carotid plaques (CPs) in community populations. Methods: This prospective parallel controlled trial recruited 111 consecutive community residents. All of them underwent examinations by non-expert GPs and specialist doctors using handheld US devices (setting A, setting B, and setting C). The results of setting C with specialist doctors were considered the gold standard. Carotid intima-media thickness (CIMT) and the features of CPs were measured and recorded. The diagnostic performance of GPs in distinguishing CPs was evaluated using a receiver operating characteristic curve. Inter-observer agreement was compared using the intragroup correlation coefficient (ICC). Questionnaires were completed to evaluate clinical benefits. Results: Among the 111 community residents, 80, 96, and 112 CPs were detected in settings A, B, and C, respectively. Setting B exhibited better diagnostic performance than setting A for detecting CPs (area under the curve, 0.856 vs. 0.749; P<0.01). Setting B had better consistency with setting C than setting A in CIMT measurement and the assessment of CPs (ICC, 0.731 to 0.923). Moreover, measurements in setting B required less time than the other two settings (44.59 seconds vs. 108.87 seconds vs. 126.13 seconds, both P<0.01). Conclusion Using an intelligent handheld US device, GPs can perform CP screening and achieve a diagnostic capability comparable to that of specialist doctors.