Surface plasmon resonance （SPR） sensor is an optical detection technique enables real-time and dynamic monitoring of biological samples. SPR-based biosensors have remarkable characteristics such as label-free detection and high sensitivity, making them important tools for studying molecular interactions. The recognition element, which plays a critical role in SPR sensors,which could specifically identify and capture of target analytes, closely influencing the selectivity performance of the sensor. The progress on SPR sensors in pharmaceutical research were reviewed, which focused on the application of recognition elements such as antibodies, aptamers, molecularly imprinted polymers, and metal nanoparticles.

Depression is increasingly prevalent among adolescents and can profoundly impact their lives. However, the early detection of depression is often hindered by the time-consuming diagnostic process and the absence of objective biomarkers. In this study, we propose a novel approach for depression detection based on an affective brain-computer interface (aBCI) and the resting-state electroencephalogram (EEG). By fusing EEG features associated with both emotional and resting states, our method captures comprehensive depression-related information. The final depression detection model, derived through decision fusion with multiple independent models, further enhances detection efficacy. Our experiments involved 40 adolescents with depression and 40 matched controls. The proposed model achieved an accuracy of 86.54% on cross-validation and 88.20% on the independent test set, demonstrating the efficiency of multimodal fusion. In addition, further analysis revealed distinct brain activity patterns between the two groups across different modalities. These findings hold promise for new directions in depression detection and intervention.
Humans ; Male ; Female ; Adolescent ; Case-Control Studies ; Depression/diagnosis* ; Early Diagnosis ; Rest ; Electroencephalography/methods* ; Brain-Computer Interfaces ; Models, Psychological ; Reproducibility of Results ; Affect/physiology* ; Photic Stimulation/methods* ; Video Recording ; Brain/physiopathology*

Flavonoids, the key active compounds in Epimedii Folium, have both protective and toxic effects on the liver. Their hepatoprotective effects are associated with reducing lipid accumulation and oxidative stress, which contribute to the management of various liver conditions. In contrast, the mechanisms driving Epimedii Folium-induced hepatotoxicity are less understood but likely involve oxidative stress and pyroptosis. Pharmacokinetic studies, especially on icaritin, indicate that it undergoes isopentenyl dehydrogenation, glycosylation, and glucuronidation in vivo, contributing to its pharmacological effects. However, intermediate metabolites of icaritin may interact with biomolecules, potentially leading to liver toxicity. This review offers a detailed examination of the dual effects of Epimedii Folium flavonoids on liver function, emphasizing recent discoveries in their hepatoprotective and hepatotoxic pathways. We also summarize and discuss the pharmacokinetics of these flavonoids, highlighting how their metabolism affects therapeutic efficacy and toxicity. Lastly, we propose strategies to mitigate liver injury, providing new perspectives on the safe use of Epimedii Folium.

Sini Decoction (SNT) is a traditional formula recognized for its efficacy in warming the spleen and stomach and dispersing cold. However, elucidating the mechanism of action of SNT remains challenging due to its complex multiple components. This study utilized a synergistic approach combining two-dimensional fluorescence difference in gel electrophoresis (2D-DIGE)-based drug affinity responsive target stability (DARTS) with label-free quantitative proteomics techniques to identify the direct and indirect protein targets of SNT in myocardial infarction. The analysis identified 590 proteins, with 30 proteins showing significant upregulation and 51 proteins showing downregulation when comparing the SNT group with the model group. Through the integration of 2D-DIGE DARTS with proteomics data and pharmacological assessments, the findings indicate that protein disulfide-isomerase A3 (PDIA3) may serve as a potential protein target through which SNT provides protective effects on myocardial cells during myocardial infarction.
Myocardial Infarction/genetics* ; Proteomics/methods* ; Drugs, Chinese Herbal/chemistry* ; Animals ; Protein Disulfide-Isomerases/genetics* ; Male ; Two-Dimensional Difference Gel Electrophoresis/methods* ; Humans ; Rats ; Rats, Sprague-Dawley ; Electrophoresis, Gel, Two-Dimensional

Objective To investigate the role of lupeol in mitigating chondrocyte senescence in osteoarthritis(OA)by regulating autophagy through the sirtuin 3(SIRT3)/mechanistic target of rapamycin kinase(mTOR)pathway.Methods Knee articular chondrocytes from primary-generation mice were isolated and divided into different groups,including a control group,a lupeol group(given 2.5,5,10,20,and 40 μmol/L lupeol),a tert-butyl hydrogen peroxide(TBHP)group(receiving 50 μmol/L TBHP),TBHP+lupeol group,TBHP+lupeol+chloroquine(CQ)group(receiving 20 μmol/L CQ,an autophagy inhibitor),TBHP+lupeol+si-NC group,and TBHP+lupeol+si-SIRT3 group.Cell proliferation,reactive oxygen species(ROS)levels,and apoptosis were determined by CCK-8,DCFH-DA probe,and flow cytometry.Cell senescence was evaluated by β-gal staining.Western blot was used to determine the expressions of SIRT3,mTOR,senescence marker proteins(p21 and p16),extracellular matrix(ECM)degradation-related proteins(aggrecan,collagen Ⅱ,ADAMTS5,and MMP13),and autophagy-related proteins(LC3B Ⅰ,LC3BⅡ,and P62).RT-qPCR was used to determine the mRNA levels of senescence-associated secretory phenotypes(SASP),including IL-6,Cxcl10,MCP1,and MMP3.The expression of LC3 was detected by immunofluorescence.Autophagosomes were observed by transmission electron microscopy.A total of 30 male wild-type C57BL/6 mice were divided into different groups(n=10),including a Sham group,an OA group,and an OA+lupeol group receiving 50 mg/(kg·d)lupeol via gastric gavage.Cartilage damage was evaluated by safranin O-fast green staining.Results Based on the results of cell viability assay,20 μmol/L lupeol treatment for 24 h was identified as the optimal intervention concentration and duration.Compared with that in the TBHP group,cell viability was elevated in the TBHP+lupeol group(P＜0.05);ROS production,the proportion of β-gal-positive cells,the protein expression levels of p21 and p16,and the mRNA levels of SASP were decreased(P＜0.05);the protein levels of aggrecan and collagen Ⅱ were elevated and the protein levels of ADAMTS5 and MMP13 were decreased(P＜0.05);apoptosis was reduced(P＜0.05);P62 protein levels were reduced and the LC3B Ⅱ/LC3B Ⅰ ratio,the intensity of LC3B fluorescence spots,and the number of autophagosomes were increased(P＜0.05);the expression level of SIRT3 was elevated and the level of mTOR phosphorylation was reduced(P＜0.05)in the TBHP+Lupeol group.CQ treatment effectively abolished the promotion effects of lupeol on cell viability and autophagy,and the inhibitory effects of lupeol on ROS level,cell senescence,ECM degradation,and apoptosis(P＜0.05).Silencing of SIRT3 reversed the inhibitory effect of lupeol on mTOR phosphorylation level and the promotion effect of lupeol on autophagy(P＜0.05).In the in vivo experiment,compared with the OA group,the OA+lupeol group showed reduced cartilage degeneration and lower scores for the Osteoarthritis Research Society International grading system(P＜0.05).The OA+lupeol group also showed up-regulated SIRT3 expression,reduced mTOR phosphorylation level,increased LC3B Ⅱ/LC3B Ⅰ ratio,reduced MMP13 protein level,and reduced mRNA level of SASP(P＜0.05).Conclusion Lupeol alleviates chondrocyte senescence in osteoarthritis by regulating autophagy through the SIRT3/mTOR pathway.

Objective To identify genetic regulators of ionizing radiation(IR)sensitivity through clustered regularly interspaced short palindromic repeats(CRISPR)/CRISPR-associated nuclease 9(Cas9)genome-wide screening.Methods A specialized single guide RNA(sgRNA)library was developed targeting 987 stress-response regulatory genes identified through Kyoto Encyclopedia of Genes and Genomes(KEGG),Reactome and gene ontology(GO)databases,followed by construction of sgRNA plasmids and packaging into a lentiviral library.Using colon adenocarcinoma Caco-2 cells as a model system,the Cas9-stable transgenic line was established via lentiviral transduction and antibiotic selection.Library-transduced cells underwent puromycin selection,followed by γ-irradiation(dose optimized via preliminary experiments).Post-irradiation phenotypic selection was conducted after 14 days,with subsequent next-generation sequencing of surviving cell populations to identify enriched/depleted sgRNAs.Candidate genes were functionally validated through orthogonal assays:cell counting kit-8(CCK-8)proliferation analysis,clonogenic survival assays and flow cytometric quantification of reactive oxygen species(ROS)and apoptotic markers.Results The optimized screening platform identified 281 radiation response genes(165 radiosensitive and 116 radioprotective candidates).Functional validation revealed Bcl2-associated athanogene 3(BAG3)knockdown significantly enhanced radioresistance.Proliferation was increased 1.2-1.5 fold,clonogenic survival improved 1.5-2.0 fold,and ROS was reduced by 13％-25％coupled with 32％-73％apoptosis attenuation compared to control groups.Conclusion The integrated CRISPR/Cas9 screening platform effectively identifies novel radiation response regulators,as evidenced by the discovery of BAG3 as a critical radiosensitivity determinant.This high-throughput functional genomics approach provides a robust methodology for systematically mapping molecular determinants of cellular radiation response,with potential applications in both mechanistic studies and therapeutic target discovery.

To investigate the status and epidemiological characteristics of respiratory pathogens infections in children with influenza-like illnesses (ILI) in Beijing Children′s Hospital from 2022 to 2023. A dual amplification technique was used to detect nucleic acids of seven common respiratory pathogens, including influenza A virus (Flu A), influenza B virus (Flu B), mycoplasma pneumoniae (MP), respiratory syncytial virus (RSV), parainfluenza virus (PIV), adenovirus (ADV), and Chlamydia pneumoniae (CP), in outpatient and inpatient children (aged 0-18 years) with influenza-like symptoms who sought medical care at Beijing Children′s Hospital, from January 2022 to March 2023. A total of 43 663 children were included in the study, of which 27 903 tested positive for respiratory pathogens with a total detection rate of 63.91%. Flu A had the highest detection rate of 69.93% (27 332/39 084), followed by MP about 13.22% (380/2 875). The total detection rate of RSV, PIV and ADV was 7.69% (131/1 704). Flu B had a detection rate of 0.16% (64/39 084). No CP was detected in this study. A total of 7 cases of dual infections were detected, with a detection rate of 0.41% (7/1 704). The Chi-square test was used to analyze the differences in detection rates of pathogens among different genders, age groups, and different seasons. Among the seven pathogens, only Flu A had statistically significant differences in gender ( χ2=16.712, P<0.001). The detection rates of Flu A and MP showed an increasing trend with age (both P trend<0.001), while the detection rates of RSV and PIV showed a decreasing trend with age (both P trend<0.001). Flu A had its epidemic peak in winter and spring, with detection rates of 61.30% (3 907/6 374) and 77.47% (23 207/29 958) respectively; MP and PIV had higher detection rates in autumn (25.14% and 7.64% respectively); RSV showed a relatively higher detection rate in winter (8.69%); Flu B and ADV had lower detection rates throughout the study period (0.16% and 1.17% respectively). In conclusion, children with ILI in 2022-2023 were mainly infected with a single respiratory pathogen, and occasionally dual pathogen infections were observed. Among them, the detection rate of Flu A was the highest, and only Flu A showed a gender difference in detection rate. As the age of the children patients increased, the detection rate of Flu A and MP showed an increasing trend, while RSV and PIV showed a decreasing trend. The prevalence of Flu A, Flu B, MP, PIV, and RSV were seasonal.

In this paper， we systematically sorted out and verified the name， origin， producing area change， quality， efficacy and processing of Halloysitum Rubrum by consulting materia medica， medical books， prescription books from past dynasties， and modern literature， and combined with the comprehensive analysis of trait identification， hygroscopicity measurement and X-ray diffraction（XRD） detection， in order to provide a basis for understanding the original source of the mineral medicine. The results indicated that Halloysitum Rubrum was first contained in the Shennong Bencaojing， it had been consistently named Chishizhi， there were also aliases such as Chifu， Hongxinshi and Chiyouzhi. The description of Halloysitum Rubrum in ancient materia medica aligns with modern findings， categorizing it under the silicate kaolinite family， specifically polyhydrous kaolinite， with associated minerals mainly being dickite， nacrite， hematite， gibbsite， mica， etc. Historically， the production area of Halloysitum Rubrum was mainly located in the Qinling Mountains， Shandong and Henan， and is now primarily distributed in most parts of China， including Henan， Hubei and other provinces. Quality evaluation in ancient times included descriptions like "fresh and greasy color"， "delicately sticky tongue and lips" and "smooth as fat". Modern materia medica mostly evaluates its quality based on color， luster， texture and hygroscopicity， noting characteristics such as red color， smoothness， delicacy， softness and strong viscosity. Halloysitum Rubrum is sweet， sour and pungent in flavor， warm in nature， non-toxic， and belongs to the heart and large intestine meridians. It acts as an astringent and solidifying agent， particularly useful in the treatment of long-term dysentery and diarrhea， common processing methods include fire calcination， water flying， and vinegar quenching. Comprehensive analysis of the traits， XRD and humidity absorption of different batches of samples showed that the commercially available Halloysitum Rubrum is mainly bright red or brownish red， with a smooth surface like grease， soft and smooth texture， delicate cross-sectional texture， and some have waxy luster and strong water absorption. It is mainly composed of 10 Å（1 Å=0.1 nm） polyhydric kaolinite， and is often accompanied by 7 Å polyhydric kaolinite， nacrite， etc. Genuine products tend to have higher moisture absorption than counterfeit ones， which can be used as a key indicator to distinguish the authenticity. The quality evaluation of Halloysitum Rubrum aligns with historical materia medica， where "fresh color， delicate and greasy lips" could serve as a key feature for its quality evaluation.

Objective To investigate the expression level and clinical significance of hsa_circ_0005075 in serum extracellular vesicles(EVs)of patients with recurrent spontaneous abortion(RSA).Methods Fourteen RSA patients and 14 normal pregnant women from the Department of Obstetrics and Gynecology,Qilu Hospital of Shandong University were enrolled in a training set,and 64 RSA pa-tients and 48 normal pregnant women were enrolled in a validation set.The expression levels of hsa_circ_0005075 in serum EVs were detected by the quantitative real-time PCR(qRT-PCR),and their correlation with clinical pathological parameters of RSA patients were analyzed.Serum anti-thyroid globulin antibody(A-TG)and anti-thyroid peroxidase antibody(A-TPO)were detected by the elec-trochemiluminescence assay.Serum anticardiolipin(ACA)IgA,IgG,and IgM antibodies and anti-β2 glycoprotein 1(β2GP1)IgA,IgG,and IgM antibodies were determined by the chemiluminescence immunoassay.The correlation of these autoantibodies with the lev-els of hsa_circ_0005075 in serum EVs was analyzed by the Pearson correlation.The clinical application value of hsa_circ_0005075 in the diagnosis of RSA was evaluated by the receiver operating characteristic(ROC)curve.Results The detection results of the training set showed that the expression levels of hsa_circ_0005075 in serum EVs of RSA patients(7.69[4.74,42.15])were significantly high-er than that in normal pregnant women(1.02[0.51,4.23],U=28,P＜0.01].Similarly,in the validation set,the expression levels of hsa_circ_0005075 in RSA patients(4.96[1.73,8.89])were also significantly higher than that in normal pregnant women(1.00[0.24,2.96],U=693,P＜0.01).The ROC curve showed that hsa_circ_0005075 in serum EVs had good diagnostic value for RSA(AUCROC=0.774),with 70.3%of sensitivity and75.0%of specificity.In addition,the expression level of hsa_circ_0005075 in serum EVs was significantly correlated with A-TPO(r=0.298,P＜0.05).Conclusion The hsa_circ_0005075 in serum EVs is highly ex-pressed in RSA patients,which may have a potential differential diagnostic value for the diagnosis of RSA.

Lateral flow immunochromatography assay is a new instantaneous detection technology that employs a chromatographic membrane and labeling materials for detection.This detection technology is convenient,fast,and inexpensive,and is therefore widely used in a number of different fields,such as biomedicine,disease detection,food safety,environmental protection,and so on.Traditional lateral flow immunochromatography assay relied on visual observation and provided only qualitative or semi-quantitative results.By utilizing various types of markers and sensitive detection devices,lateral flow immunochromatography assay enables quantitative and multi-component detection of the analytes.The research progress on the lateral flow immunoassay detection system and its current applications in the context of recognition elements,labeling materials,and detection instruments were reviewed in this paper.