This paper systematically summarizes the practical experience of the 2025 Dingri earthquake emergency medical rescue in Tibet. It analyzes the requirements for earthquake medical rescue under conditions of high-altitude hypoxia, low temperature, and low air pressure. The paper provides a detailed discussion on the strategic layout of earthquake medical rescue at the national level, local government level, and through social participation. It covers the construction of rescue organizational systems, technical systems, material support systems, and information systems. The importance of building rescue teams is emphasized. In high-altitude and cold conditions, rapid response, scientific decision-making, and multi-party collaboration are identified as key elements to enhance rescue efficiency. By optimizing rescue organizational structures, strengthening the development of new equipment, and promoting telemedicine technologies, the precision and effectiveness of medical rescue can be significantly improved, providing important references for future similar disaster rescues.

OBJECTIVE: To evaluate precise assessment methods for predicting the optimal acetabular cup size in total hip arthroplasty (THA). METHODS: A clinical data of 73 patients (80 hips) who underwent primary THA between December 2022 and July 2024 and met the inclusion criteria was analyzed. There were 39 males and 34 females with an average age of 66.3 years (range, 56-78 years). Among them, 66 cases were unilateral THA and 7 were bilateral THAs. There were 29 patients (34 hips) of osteoarthritis, 35 patients (35 hips) of femoral neck fractures, and 9 patients (11 hips) of osteonecrosis of the femoral head. Based on anteroposterior pelvic X-ray films, three methods were employed to predict acetabular cup size, including preoperative template planning, radiographic femoral head diameter (FHD) measurement, and intraoperative FHD measurement. The predicted acetabular cup sizes from these methods were compared with the actual implanted sizes. RESULTS: The predicted acetabular cup sizes using the preoperative template planning, radiographic FHD measurement, and intraoperative FHD measurement were (51.25±2.81), (49.72±3.11), and (49.90±2.74) mm, respectively, compared to the actual implanted cup size of (50.57±2.74) mm, with no significant difference ( P>0.05). Regarding agreement with the actual implanted cup size, the preoperative template planning achieved exact matches in 35 hips (43.75%), one-size deviation in 41 hips (51.25%), and two-size deviations in 4 hips (5%); the radiographic FHD measurement achieved exact matches in 12 hips (15%), one-size deviation in 57 hips (71.25%), and two-size deviations in 11 hips (13.75%); and the intraoperative FHD measurement achieved exact matches in 26 hips (32.5%), one-size deviation in 52 hips (65%), and two-size deviations in 2 hips (2.5%). There were significant differences in agreement distributions between the three methods and the actual implanted cup sizes ( H=18.579, P<0.001). CONCLUSION The intraoperative FHD measurement, as a simple, cost-effective, and accurate method, effectively guides acetabular cup selection, reduces the risk of prosthesis wear, enhances postoperative joint stability.
Humans ; Arthroplasty, Replacement, Hip/instrumentation* ; Male ; Female ; Middle Aged ; Acetabulum/diagnostic imaging* ; Aged ; Hip Prosthesis ; Prosthesis Design ; Femur Head/surgery* ; Osteoarthritis, Hip/surgery* ; Radiography ; Femoral Neck Fractures/surgery* ; Femur Head Necrosis/surgery*

The genome tagging project (GTP) plays a pivotal role in addressing a critical gap in the understanding of protein functions. Within this framework, we successfully generated a human influenza hemagglutinin-tagged sperm-specific protein 411 (HA-tagged Ssp411) mouse model. This model is instrumental in probing the expression and function of Ssp411. Our research revealed that Ssp411 is expressed in the round spermatids, elongating spermatids, elongated spermatids, and epididymal spermatozoa. The comprehensive examination of the distribution of Ssp411 in these germ cells offers new perspectives on its involvement in spermiogenesis. Nevertheless, rigorous further inquiry is imperative to elucidate the precise mechanistic underpinnings of these functions. Ssp411 is not detectable in metaphase II (MII) oocytes, zygotes, or 2-cell stage embryos, highlighting its intricate role in early embryonic development. These findings not only advance our understanding of the role of Ssp411 in reproductive physiology but also significantly contribute to the overarching goals of the GTP, fostering groundbreaking advancements in the fields of spermiogenesis and reproductive biology.
Animals ; Female ; Humans ; Male ; Mice ; Spermatids/metabolism* ; Spermatogenesis/physiology* ; Spermatozoa/metabolism* ; Thioredoxins/genetics*

OBJECTIVE: To evaluate the efficacy and safety of Shexiang Tongxin Dropping Pill (STDP) in treating stable angina patients with phlegm-heat and blood-stasis syndrome by exercise duration and metabolic equivalents. METHODS: This multicenter, randomized, double-blind, placebo-controlled clinical trial enrolled stable angina patients with phlegm-heat and blood-stasis syndrome from 22 hospitals. They were randomized 1:1 to STDP (35 mg/pill, 6 pills per day) or placebo for 56 days. The primary outcome was the exercise duration and metabolic equivalents (METs) assessed by the standard Bruce exercise treadmill test after 56 days of treatment. The secondary outcomes included the total angina symptom score, Chinese medicine (CM) symptom scores, Seattle Angina Questionnaire (SAQ) scores, changes in ST-T on electrocardiogram and adverse events (AEs). RESULTS: This trial enrolled 309 patients, including 155 and 154 in the STDP and placebo groups, respectively. STDP significantly prolonged exercise duration with an increase of 51.0 s, compared to a decrease of 12.0 s with placebo (change rate: -11.1% vs. 3.2%, P<0.01). The increase in METs was significantly greater in the STDP group than in the placebo group (change: -0.4 vs. 0.0, change rate: -5.0% vs. 0.0%, P<0.01). The improvement of total angina symptom scores (25.0% vs. 0.0%), CM symptom scores (38.7% vs. 11.8%), reduction of nitroglycerin consumption (100.0% vs. 11.3%), and all domains of SAQ, were significantly greater with STDP than placebo (all P<0.01). The changes in Q-T intervals at 28 and 56 days from baseline were similar between the two groups (both P>0.05). Twenty-five participants (16.3%) with STDP and 16 (10.5%) with placebo experienced AEs (P=0.131), with no serious AEs observed. CONCLUSION STDP could improve exercise tolerance in patients with stable angina and phlegm-heat and blood stasis syndrome, with a favorable safety profile. (Registration No. ChiCTR-IPR-15006020).
Humans ; Double-Blind Method ; Drugs, Chinese Herbal/adverse effects* ; Male ; Female ; Middle Aged ; Angina, Stable/physiopathology* ; Aged ; Syndrome ; Treatment Outcome ; Placebos ; Tablets

OBJECTIVE: To evaluate the dynamic changes of glucocorticoid (GC) dose and the feasibility of GC discontinuation in rheumatoid arthritis (RA) patients under the background of Chinese medicine (CM). METHODS: This multicenter retrospective cohort study included 1,196 RA patients enrolled in the China Rheumatoid Arthritis Registry of Patients with Chinese Medicine (CERTAIN) from September 1, 2019 to December 4, 2023, who initiated GC therapy. Participants were divided into the Western medicine (WM) and integrative medicine (IM, combination of CM and WM) groups based on medication regimen. Follow-up was performed at least every 3 months to assess dynamic changes in GC dose. Changes in GC dose were analyzed by generalized estimator equation, the probability of GC discontinuation was assessed using Kaplan-Meier curve, and predictors of GC discontinuation were analyzed by Cox regression. Patients with <12 months of follow-up were excluded for the sensitivity analysis. RESULTS: Among 1,196 patients (85.4% female; median age 56.4 years), 880 (73.6%) received IM. Over a median 12-month follow-up, 34.3% (410 cases) discontinued GC, with significantly higher rates in the IM group (40.8% vs. 16.1% in WM; P<0.05). GC dose declined progressively, with IM patients demonstrating faster reductions (median 3.75 mg vs. 5.00 mg in WM at 12 months; P<0.05). Multivariate Cox analysis identified age <60 years [P<0.001, hazard ratios (HR)=2.142, 95% confidence interval (CI): 1.523-3.012], IM therapy (P=0.001, HR=2.175, 95% CI: 1.369-3.456), baseline GC dose ⩽7.5 mg (P=0.003, HR=1.637, 95% CI: 1.177-2.275), and absence of non-steroidal anti-inflammatory drugs use (P=0.001, HR=2.546, 95% CI: 1.432-4.527) as significant predictors of GC discontinuation. Sensitivity analysis (545 cases) confirmed these findings. CONCLUSIONS RA patients receiving CM face difficulties in following guideline-recommended GC discontinuation protocols. IM can promote GC discontinuation and is a promising strategy to reduce GC dependency in RA management. (Trial registration: ClinicalTrials.gov, No. NCT05219214).
Adult ; Aged ; Female ; Humans ; Male ; Middle Aged ; Arthritis, Rheumatoid/drug therapy* ; Glucocorticoids/therapeutic use* ; Medicine, Chinese Traditional ; Retrospective Studies

[This corrects the article DOI: 10.1016/j.apsb.2022.05.019.].

Nitrofurazone(NFZ)is an antibiotic that is used as a veterinary drug in aquaculture.NFZ abuse can lead to a series of environmental and health issues,making it crucial to establish a rapid and highly sensitive method for NFZ detection.In this study,platinum nanoparticle(PtNPs)-loaded zeolitic imidazolate framework(ZIF-8)was used as a precursor,and PtNPs functionalized nitrogen doped porous carbon(NC)was obtained through pyrolysis.Pt@NC was combined with multi-walled carbon nanotubes(MWCNTs)and cast onto a glassy carbon electrode(GCE)surface to construct an electroch-emical sensor.Electrochemical tests revealed that Pt@NC/WCNT/GCE exhibited an electrochemical active area of 0.066 cm2 and a heterogeneous electron transfer rate constant(k0)of 2.03×10-3 cm/s,which were higher than other materials.Compared with the electrodes modified by other materials,the NFZ generated the highest peak current of irreversible reduction peak on the Pt@NC/WCNT/GCE electrode.In comparison with Pt@ZIF-8/WCNT/GCE,after pyrolysis and carbonization treatment,the reduction current of NFZ increased by 2.19 times,and the reduction peak potential shifted positively by 19 mV simultaneously.When compared with NC/WCNT/GCE,the PtNPs in the composite material enhanced the NFZ current by 4.25 times.Additionally,the experimental conditions for detecting NFZ using the sensor were optimized,including the carbonization temperature of Pt@ZIF-8,ratio of Pt@NC to CNT,loading amount of the modified material,and electrolyte pH.Under the optimized conditions,the sensor demonstrated a linear detection range for NFZ of 0.20-240 μmol/L,a sensitivity of 9.995 μA/((μmol/L)?cm2)and a limit of detection(LOD)of 0.06 μmol/L.The sensor exhibited excellent anti-interference capability,good reproducibility,and stability,with spiked recoveries for NFZ in water samples ranging from 94.6%to 105.6%.This study provided a novel electrochemical sensing approach for NFZ detection.

Objective To investigate the effect of miR-373-3p in diabetic retinopathy(DR),as well as the underlying mechanisms.Methods Serum samples from 35 DR patients and 35 non-DR patients visiting Tianjin Fifth Central Hospital from February 2021 to February 2022 were collected,and expression levels of miR-373-3p and vascular endothelial growth factor A(VEGFA)mRNA were detected using quantitative reverse transcription polymerase chain reaction(qRT-PCR).An in vitro DR model was constructed using high glucose(HG)-treated human retinal microvascular endothelial cells(HRMEC).HRMECs were divided into control group(5 mmol/L glucose and 25 mmol/L mannitol treatment),HG group(30 mmol/L glucose treatment),HG+miR-373-3p mimic-negative control(miR-con)group(30 mmol/L glucose treatment after transfection with miR-con),HG+miR-373-3p mimic group(30 mmol/L glucose treatment after transfection with miR-373-3p),HG+miR-373-3p+vector group(30 mmol/L glucose treatment after co-transfection with miR-373-3p and vector),and HG+miR-373-3p+vascular endothelial growth factor A(VEGFA)group(30 mmol/L glucose treatment after co-transfection with miR-373-3p and VEGFA).The expression levels of miR-373-3p,VEGFA mRNA and protein were analyzed by qRT-PCR and Western blotting.CCK-8,immunofluorescence,Transwell assay,angiogenesis assay,and Western blotting were used to evaluate HRMEC proliferation,migration and angiogenesis abilities.The relationship between miR-373-3p and VEGFA was determined by dual luciferase reporter assay.Results Compared with non-DR patients,DR patients exhibited significantly lower expression levels of miR-373-3p(P＜0.05)and higher expression levels of VEGFA mRNA(P＜0.05)in serum.Compared with control group,HG group showed decreased expression of miR-373-3p(P＜0.05),increased expressions of the mRNA and protein of VEGFA(P＜0.05),higher cell viability,proliferation rate,proliferating cell nuclear antigen(PCNA)and Cylin D1 protein,and numbers of migrating cells and angiogenesis ability(P＜0.05)in HRMECs.Compared with HG+miR-con group,HG+miR-373-3p group showed increased expression of miR-373-3p(P＜0.05),decreased expressions of VEGFA(P＜0.05),lower cell viability,proliferation rate,PCNA and Cylin D1 protein(P＜0.05),and lower numbers of migrating cells and angiogenesis ability(P＜0.05)in HRMECs.Compared with HG+miR-373-3p+vector group,HG+miR-373-3p+VEGFA group showed increased expression of VEGFA(P＜0.05),higher cell viability,proliferation rate,PCNA and Cylin D1 protein,and numbers of migrating cells and angiogenesis ability(P＜0.05)in HRMECs.The results of dual luciferase reporter assay showed decreased enzymatic activity of luciferase after cotransfection of miR-373-3p and VEGFA sequence(P＜0.05).Conclusion MiR-373-3p is lowly expressed in the serum of DR patients,and its potential mechanism may involve targeting VEGFA to inhibit HG-induced HRMEC dysfunction.

Objective To establish and evaluate a nomogram prediction model for spontaneous peritonitis in HBV-related primary liver cancer.Methods A retrospective study was conducted on 1298 patients with HBV-related primary liver cancer hospitalized in the Kunming Third People's Hospital from January 2012 to December 2022.General data and serological indicators were collected,and patients were divided into infection group(n=262)and control group(n=1036)based on the occurrence of spontaneous peritonitis.Univariate and LASSO regression analyses were used to screen variables,followed by binary logistic regression to analyze the influencing factors of spontaneous peritonitis in HBV-related primary liver cancer patients,leading to the establishment of a nomogram prediction model.Finally,the Hosmer-lemeshow(H-L)goodness of fit test,receiver operating characteristic(ROC)curve,calibration curve,decision curve analysis(DCA)and clinical impact curve(CIC)were utilized to evaluate the fit degree,accuracy,calibration,and clinical practicability of the nomogram prediction model.Results Single factor analysis revealed significant differences between infection group and control group in portal vein cancer thrombus(PVTT),Child-Pugh grade,China Liver Cancer Staging(CNLC)stage,alcohol consumption history,smoking history,white blood cell count(WBC),neutrophil count(NE),hemoglobin(Hb),fibrinogen(FIB),abnormal prothrombin(PIVKA-Ⅱ),aspartate aminotransferase(AST),alanine aminotransferase(ALT),total protein(TP),prealbumin(PA),γ-glutamyltransferase(GGT),alkaline phosphatase(ALP),cholinesterase(CHE),total bile acid(TBA),total cholesterol(TC),low density lipoprotein(LDL),creatinine(Cr),HBV DNA,CD3+T cells count,CD4+T cells count,CD8+T cells count,CD4+T cells/CD8+T cells ratio,procalcitonin(PCT),serum amyloid A(SAA),interleukin-6(IL-6),high-sensitivity C-reactive protein(hs-CRP),alpha-fetoprotein(AFP),and IL-4(P＜0.05).LASSO regression analysis identified 5 variables:Child-Pugh grade,PVTT,WBC,CHE and hs-CRP.Binary logistic regression analysis indicated that Child-Pugh grade(Grade B:OR=5.780,95％CI 3.271-10.213,P＜0.001;Grade C:OR=14.818,95％CI 7.697-28.526,P＜0.001),PVTT(OR=2.893,95％CI 2.037-4.108,P＜0.001),WBC(OR=1.088,95％CI 1.031-1.148,P=0.002),and hs-CRP(OR=1.005,95％CI 1.001-1.010,P=0.026)were the independent risk factors of spontaneous peritonitis in HBV-related primary liver cancer patients.Using these 4 variables,a nomogram prediction model was constructed and evaluated.The P-value of the H-L goodness of fit test was 0.760.Moreover,the area under ROC curve(AUC)was 0.866,with a sensitivity of 0.870 and a specificity of 0.716.The average absolute error of the calibration curve is 0.022.DCA and CIC analyses demonstrated that the nomogram prediction model possessed some clinical utility.Conclusion The nomogram prediction model for spontaneous peritonitis in HBV-related primary liver cancer patients,constructed using Child-Pugh grade,PVTT,WBC and hs-CRP,exhibits a high fitting degree and accuracy,with the prediction probability highly consistent with the actual occurrence probability,and possesses certain clinical practicability.

Objective To investigate the effect of farrerol on pyroptosis induced by hydrogen peroxide(H2O2)in lens epithelial cells through regulating JAK2/STAT3 signaling pathway.Methods Thirty-six neonatal SD rats were randomly divided into normal group,cataract group(20 μmol/kg sodium selenite),farrerol low dose,medium dose and high dose groups(10,20,40 mg/kg farrerol)and positive control group(benzyda lysine eye drops).Lens turbidity was observed by slit-lamp and scored,and pathological changes of lens were observed by HE staining.Human lens epithelial cells were cultured and divided into control group,model group,low concentration farrerol group(20 mg/L),high concentration farrerol group(40 mg/L),high concentration farrerol+R08191 group(40 mg/L+10 μmol/L),except the control group,other groups were induced by H2O2.The cell activity was detected by CCK-8 method;the concentrations of interleukin(IL-1 β)and IL-18 in cell culture medium were measured by ELISA;inverted phase contrast microscope was used to observe the cell scorch in each group;The expression of N-terminal fragment of GSDMD(GSDMD-N)protein was detected by immunofluorescent staining;the content of reactive ozygen species(ROS)was measured by flow cytometry;the expressions of latent heat protein(NLRP3),apoptosis-associate speck-like protein containing a CARD(ASC),Caspase-1,GSDMD-N,JAK2/STAT3 pathway proteins were detected by Western blotting.Results In cataract rats,the lens epithelial cells were disorderly and loosely arranged,the lens fibrosis/liquefaction,and the lens turbidity score increased(P＜0.05).Compared with the cataract group,the lens damage and the lens turbidity score decreased in the low,medium and farrerol high dose group and the positive control group(P＜0.05),and the effect of the farrerol high dose group was the best,which was basically consistent with the positive control group.The cells in the control group were closely connected and arranged in order,without scorched cells;in the model group,the cells were swollen and had typical charring characteristics of bubble like protrusion;Compared with the model group,the cell bubble protrusion in the low concentration farrerol group and the high concentration farrerol group was alleviated;Compared with the high concentration farrerol group,the cell bubble protrusion in the high concentration farrerol+R08191 group was aggravated.Compared with the control group,the cell survival rate in model group was decreased,the levels of IL-18 and IL-1 β in supernatant,the number of GSDMD-N positive cells,the level of ROS,the expression of NLPR3,ASC,Caspase-1,GSDMD-N protein,p-JAK2/JAK2,p-STAT3/STAT3 were increased(P＜0.05);Compared with the model group,the cell survival rate in the low concentration farrerol group and the high concentration farrerol group was increased,the levels of IL-18 and IL-1β in supernatant,the number of GSDMD-N positive cells,the level of ROS,the expression of NLPR3,ASC,Caspase-1,GSDMD-N protein,p-JAK2/JAK2,p-STAT3/STAT3 were decreased(P＜0.05);compared with the high concentration farrerol group,the cell survival rate in the high concentration farrerol+R08191 group was decreased,the levels of IL-18 and IL-1 β in supernatant,the number of GSDMD-N positive cells,the level of ROS,the expression of NLPR3,ASC,Caspase-1,GSDMD-N protein,p-JAK2/JAK2,p-STAT3/STAT3 signaling were increased(P＜0.05).Conclusion Farrerol may inhibit H2O2-induced pyroptosis of lens epithelial cells by inhibiting JAK2/STAT3 signaling pathway.