Chronic heart failure （CHF） is a group of complex clinical syndromes caused by abnormal changes in the structure and/or function of the heart due to various reasons， resulting in disorders of ventricular contraction and/or diastole. CHF is a condition where primary diseases such as coronary heart disease， hypertension and pulmonary heart disease recur frequently and persist for a long time， presenting blood stasis in meridians and collaterals， stagnation of water and dampness， and accumulation of Qi in collaterals. Its pathogenesis is complex and may involve myocardial energy metabolism disorders， oxidative stress responses， myocardial cell apoptosis， autophagy， inflammatory responses， etc. According to the theory of restraining hyperactivity to acquire harmony， we believe that under normal circumstances， the adenosine monophosphate-activated protein kinase （AMPK） signaling pathway functions normally， maintaining human physiological activities and energy metabolism. Under pathological conditions， the AMPK signaling pathway is abnormal， causing energy metabolism disorders， inflammatory responses， and myocardial fibrosis. Traditional Chinese medicine （TCM） can regulate the AMPK signaling pathway through multiple mechanisms， targets， and effects， effectively curbing the occurrence and development of CHF. It has gradually become a research hotspot in the prevention and treatment of this disease. Guided by the theory of TCM， our research group， through literature review， summarized the relationship between the AMPK pathway and CHF and reviewed the research progress in the prevention and control of CHF with TCM active ingredients， TCM compound prescriptions， and Chinese patent medicines via regulating the AMPK pathway. The review aims to clarify the mechanism and targets of TCM in the treatment of CHF by regulating the AMPK pathway and guide the clinical treatment and drug development for CHF.

ObjectiveTo investigate the efficacy of ovarian tissue cryopreservation and autologous transplantation in preserving fertility and ovarian endocrine function in patients with cervical cancer. MethodsA 26-year-old patient with stage ⅡA1 cervical cancer underwent ovarian tissue harvesting and cryopreservation during cancer surgery. Following complete remission of the cancer， autologous ovarian tissue transplantation was performed. Follow-up monitoring included assessment of menopausal symptoms， hormone levels， and follicular development. ResultsSix months after transplantation， follicle-stimulating hormone levels decreased to 6.60 U/L， and estradiol levels increased from ＜10.00 ng/L to 89.00 ng/L. At 10 months after transplantation， ultrasound monitoring confirmed follicular development and physiological ovulation in the transplanted ovarian tissue. By 15 months after transplantation， follicle-stimulating hormone levels remained stable at 7.24 U/L， and estradiol levels further increased to 368.00 ng/L. Over 2 years after transplantation， the patient successfully gave birth to a healthy baby through assisted reproductive technology. ConclusionThe restoration of endocrine and ovulation functions in the transplanted cryopreserved ovarian tissue， followed by successful pregnancy， demonstrates the clinical success of ovarian tissue transplantation.

PURPOSE: Although there are significant differences between China and the United States (US) in trauma medical services, there has been no direct comparative research on the epidemiological data of trauma centers between the 2 countries. This study aims to fill this research gap by directly comparing trauma centers in China and the US, providing valuable data and insights for the development of trauma centers in both countries, promoting academic exchange and cooperation internationally, and enhancing the level of global trauma medical care. METHODS: This is a multicenter retrospective descriptive study. Data were collected for trauma patients with an injury severity score ≥16 treated from September 2013 to September 2019 at 2 hospital trauma centers in these 2 countries. Detailed clinical data (including injury mechanism, age, injury site, injury severity score, pre-hospital transport time, whether blood transfusion was performed, whether resuscitative thoracotomy was conducted, hospital and intensive care unit stay duration, the number of organ donor patients, mortality rates, and costs) were meticulously compiled and retrospectively analyzed to identify differences between the 2 trauma centers. The comparison was conducted using SPSS 23 software. Continuous variables are reported as median (Q₁, Q₃), and Mann Whitney U test is used to compare the median of continuous variables. Use clinically relevant critical points to classify continuous variables, with categorical variables represented as n (%), and comparisons were made between the 2 groups using the χ² test or Fisher's exact test. Statistical significance was defined as a 2-sided p < 0.05. RESULTS: These results point to significant differences in trauma center capacity, pre-hospital transport times, treatment procedures, hospital stay duration, mortality rates, and costs between the 2 centers. The volume of patients in trauma centers is less in China (2465 vs. 5288). Pre-hospital transport time was notably longer in China (180 min vs. 14 min), and the rate of emergency blood transfusions was lower in China (18.4% vs. 50.6%), Emergency thoracotomy was not performed in China but was conducted in 9.8% of cases in the US. Hospitalization costs were significantly lower in China than in the US ($5847 vs. $75,671). CONCLUSION There are clear differences in trauma center capacity (number of patients treated), pre-hospital transport time, age distribution of injured patients, injury mechanisms, injury sites, whether emergency thoracotomy is performed, hospital costs, and length of stay between the 2 trauma centers in China and America. Understanding these differences can help us further recognize the characteristics of Eastern and Western trauma patients.
Humans ; China/epidemiology* ; Trauma Centers/statistics & numerical data* ; Retrospective Studies ; United States/epidemiology* ; Male ; Female ; Wounds and Injuries/therapy* ; Middle Aged ; Adult ; Injury Severity Score ; Length of Stay/statistics & numerical data* ; Treatment Outcome

Background and Aims:Laparoscopic cholecystectomy(LC)is a common surgical method for the treatment of gallbladder diseases.However,some patients experience symptoms such as dyspepsia after surgery,which can affect their quality of life.Compound azinomide enteric-coated tablets,a novel drug,may improve dyspeptic symptoms after LC.This study was conducted to explore the clinical efficacy of compound azinomide enteric-coated tablets in treating post-LC dyspepsia symptoms through a multicenter clinical trial.Methods:A multicenter,superior efficacy,open-label,parallel-controlled design was used.Patients with postoperative dyspepsia were enrolled in 7 centers between January 2023 and May 2024.Patients were randomly assigned to either the observation or control groups using a random number table.The observation group received compound azinomide enteric-coated tablets,while the control group was treated with a combination of oryzae pancreatin tablets and ursodeoxycholic acid tablets.Both groups were treated for 4 weeks.The primary endpoints included gastrointestinal symptom scores and quality of life scores assessed before and at 14 and 28 d after treatment.Additionally,the incidence of adverse reactions and cost-effectiveness ratio(CER)were compared between the groups.Results:A total of 303 patients were included,with 150 in the observation group and 153 in the control group.Baseline characteristics were balanced between the groups before treatment(all P>0.05).After treatment,the observation group showed significantly higher effective rates at 14 d and 28 d than the control group(44.7%vs.29.4%;98.0%vs.73.9%,both P<0.05).The observation group also had significantly lower symptom scores and quality of life scores at both 14 and 28 d,with a significantly higher improvement rate in symptom scores compared to the control group(all P<0.05).Further analysis of the improvement rate and treatment efficacy for individual symptoms revealed that,except for the 14-d improvement in abdominal pain/discomfort,the observation group showed better improvement in all other symptoms at 14 d and in all symptoms at 28 d compared to the control group(all P<0.05).No adverse reactions were observed in either group.The CER for the observation group was 283.78 yuan/efficacy rate at 14 d and 128.57 yuan/efficacy rate at 28 d,while the control group's CER was 729.93 yuan/efficacy rate at 14 d and 290.22 yuan/efficacy rate at 28 d.Conclusion:Compound azinomide enteric-coated tablets demonstrated good clinical efficacy in treating dyspepsia symptoms after LC with excellent safety and high cost-effectiveness.Despite some limitations,the results provide a new treatment option for dyspepsia after LC.Larger-scale randomized controlled trials are needed to validate this study's conclusions further.

Senecavirus A (SVA) is a major viral pathogen causing disease in pigs, and effective monitoring of SVA infection is critical for disease control. In this study, we aimed to develop a reliable ELISA method for rapidly detecting neutralizing antibodies against SVA. We used HEK293F cells to express an SVA-specific porcine Fab antibody and verified the biological activity of the Fab antibody by indirect ELISA, immunofluorescence assay, virus neutralization test, and Western blotting. The Fab antibody was biotinylated and used as a competitive antibody to establish a competitive ELISA (C-ELISA) for detecting neutralizing antibodies against SVA. We then evaluated the C-ELISA in terms of sensitivity, specificity, repeatability, and result agreement rate with the VNT. The results showed that we successfully prepared an SVA-specific porcine Fab antibody, which showed high affinity for SVA. We named this antibody 1M33Fab and designated it as Bio-1M33Fab after biotin labeling. The assay conditions were optimized as follows: the coating concentration of SVA particles being 1 μg/mL, the working concentration of Bio-1M33Fab being 0.5 μg/mL, the optimal serum dilution of 1:10, and the optimal dilution of enzyme-labeled avidin being 1:30 000. At a percent inhibition (PI) of 47%, the assay demonstrated the highest sensitivity (96.88%) and specificity (100%), with no cross-reactivity observed with the positive sera of major porcine viral diseases. The intra-assay coefficient of variation ranged from 1.12% to 7.34%, while the inter-assay coefficient of variation ranged from 1.10% to 8.97%, indicating good repeatability. In the detection of 224 clinical pig serum samples, C-ELISA and VNT showed a result agreement rate of 93.75%. In conclusion, we successfully develop a C-ELISA method for detecting neutralizing antibodies against SVA by using a porcine-derived Fab antibody, which lays a foundation for the development of detection kits.
Animals ; Swine ; Antibodies, Neutralizing/immunology* ; Enzyme-Linked Immunosorbent Assay/methods* ; Immunoglobulin Fab Fragments/immunology* ; Antibodies, Viral/immunology* ; Picornaviridae/immunology* ; Humans ; HEK293 Cells ; Swine Diseases/diagnosis* ; Picornaviridae Infections/diagnosis*

The aim of this study is to identify the cause of death of a South China tiger cub at the Meihuashan breeding institute of Fujian Province.Pathogenic bacteria were isolated and cultured from liver,spleen,lung and other tissue samples of the dead South China tiger aseptically.The iso-lated bacteria were identified through morphological observation,biochemical characterization,sequence analysis of housekeeping gene gyrB,virulence gene detection,animal pathogenicity test and drug sensitivity test.A pathogenic Aeromonas hydrophila strain,designated FJ/Tiger-201809 was successfully isolated from the trachea of dead South China tiger.The nucleotide sequence ho-mology between the isolate and 11 strains of Aeromonas gyrB ranged from 91.2％to 99.1％,with the highest homology of 99.1％observed with Aeromonas hydrophila(AF208251.1).Genetic evo-lution analysis showed that the isolated strain FJ/Tiger-201809 was in the same evolutionary branch as other reference strains of Aeromonas hydrophila and was closely related.The pathoge-nicity test in mice showed artificial infection of mice with the strain resulted in varying degrees of lesions in several organs of the mice,and the median lethal dose(LD50)was 1 × 107.8 CFU/mL.Virulence gene test results showed that the isolate FJ/Tiger-201809 carried two virulence genes,aer and act.The results of drug sensitivity test showed that FJ/Tiger-201809 was highly sensitive to enrofloxacin and ampicillin among 18 commonly used antibiotics,relatively sensitive to penicil-lin G and doxycycline,and resistant to the other 14 antibiotics.In conclusion,this study isolated and identified a strain of Aeromonas hydrophila from a dead South China tiger with multiple drug resistance and strong pathogenicity,which provided an important reference for the prevention and control of bacterial diseases in South China tiger.

Objective To investigate the relationship between serum trimethylamine oxide(TMAO),neurofilament light chain protein(NfL),peroxisome proliferator-activated receptor γ coactivator-1α(PGC-1α)expression levels and short-term prognosis in aneurysmal subarachnoid hemorrhage(aSAH)patients.Method A total of 125 aSAH patients(aSAH group)and 125 healthy volunteers in the same period(control group)who were admitted in heji hospital affiliated to Changzhi Medical College from March 2020 to June 2023 were selected.The serum expression levels of TMAO,NfL and PGC-1α were compared between control group and aSAH group.The aSAH patients were followed up for 6 months after discharge.Their prognosis were evaluated using Glasgow Outcome Scale(GOS)and they were further divided into good prognosis and poor prognosis groups according to the GOS results.The serum expression levels of TMAO,NfL and PGC-1α were compared between the two groups.The poor prognosis influencing factors were analyzed by multivariate Logistic regression analysis,the serum TMAO,NfL and PGC-1α value in predicting poor prognosis were analyzed by receiver operating characteristic(ROC)curve.Result The expression levels of serum TMAO and PGC-1 α in the aSAH group were(2.63±0.36)μmol/L and(0.51±0.13)ng/mL,respectively,which were lower than those in the control group(3.18±0.57)μmol/L and(0.81±0.16)ng/mL(P<0.05).The expression level of serum NfL was significantly higher in the aSAH group(64.48±14.35 pg/mL)than in the control group(28.36±8.82 pg/mL)(P<0.05).Compared with the good prognosis group whose serum levels of TMAO and PGC-1 α were(2.80±0.80)μmol/L and(0.58±0.16)ng/mL,respectively,the poor prognosis group had significantly lower serum TMAO[(2.29±0.63)μmol/L]and PGC-1 α[(0.36±0.12)ng/mL](P<0.05).In contrast,poor prognosis group had a significantly higher level of NfL(76.70±15.61)pg/mL compared to good prognosis group(58.52±10.52)pg/mL(P<0.05).The proportion of patients with hypertension,patients with diabetes,patients with large or giant aneurysms,patients with Hunt Hess grade Ⅲ-Ⅳ,patients with onset to hospital time>12 h,and the level of C-reactive protein(CRP)were higher in the poor prognosis group than in the good prognosis group(P<0.05).Hunt Hess grade Ⅲ-Ⅳ,elevated serum CRP and NfL were independent risk factors for poor prognosis in aSAH patients(P<0.05),while elevated TMAO and PGC-1 α were protective factors(P<0.05).The area under the curve(AUC)of serum TMAO,NfL,PGC-1 α,and their combined prediction of poor prognosis in aSAH patients were 0.726,0.830,0.862,and 0.956,respectively.The AUC of the combined detection was greater than that of each indicator detected separately.Conclusion Serum TMAO and PGC-1α are lowly expressed in aSAH patients,and serum NfL is highly expressed,which are related to the occurrence of short-term poor prognosis,the combined detection of the three indicators has a high predictive value for short-term poor prognosis in aSAH patients.

BACKGROUND:Existing studies have made significant progress in PIWI-interacting RNAs(piRNAs)against osteoporosis,but the specific targets and related mechanisms by which piRNAs exert their functions remain to be explored.OBJECTIVE:To investigate the effects and downstream mechanisms of piR-7472 on the differentiation of mouse osteoblasts(MC3T3-E1 cells).METHODS:(1)Twelve C57/BL6J mice were randomly divided into a sham-operated and an ovariectomized group,with six mice in each group.Changes in bone mass and the expression of piR-7472 were detected using Micro-CT and RT-qPCR,respectively,at 8 weeks after surgery.(2)MC3T3-E1 cells were divided into NC mimics group,piR-7472 mimics group,NC inhibitor group,and piR-7472 inhibitor group.The mRNA expression of piR-7472,osteopontin,type I collagen,Runt-related transcription factor 2,and potassium voltage-gated channel modifier subfamily F member 1 were detected by RT-qPCR after 7 days of osteogenic induction.The protein expression of osteopontin,Runt-related transcription factor 2,bone morphogenetic protein 2,and potassium voltage-gated channel modifier subfamily F member 1(KCNF1)was detected using western blot assay.The expression of alkaline phosphatase was detected by alkaline phosphatase staining after 14 days of osteogenic induction,and the number of mineralized nodules was detected by alizarin red staining after 21 days of induction.Whether piR-7472 could bind to KCNF1 was observed by the dual luciferase reporter gene assay.RESULTS AND CONCLUSION:(1)Bone mineral density,bone volume fraction,bone trabecular thickness,bone trabecular number were significantly decreased and bone trabecular separation was significantly increased in ovariectomized mice,and piR-7472 in bone tissue was significantly down-regulated in osteoporotic mice.(2)Compared with the NC group,the mRNA expression of osteopontin,type I collagen,and Runt-related transcription factor 2 were significantly increased,the protein expression of osteopontin,Runt-related transcription factor 2,and bone morphogenetic protein 2 were significantly elevated,and the levels of mineralized deposition and alkaline phosphatase were increased in the piR-7472 mimics group.Compared with the NC inhibitor group,the mRNA expression of osteopontin,type I collagen,and Runt-related transcription factor 2 was significantly downregulated,the protein expression of osteopontin,Runt-related transcription factor 2,and bone morphogenetic protein 2 were significantly decreased,and the levels of mineralized deposition and alkaline phosphatase were reduced in the piR-7472 inhibitor group.(3)piR-7472 was found to interact with the potassium voltage-gated channel modifier subfamily F member 1 as predicted by the miRanda database.The dual luciferase reporter gene assay revealed that piR-7472 mimics could bind to and promote the expression of KCNF1.To conclude,piR-7472 can promote osteogenic differentiation of osteogenic precursor cells MC3T3-E1,and its mechanism of action may be achieved by promoting the expression of KCNF1.

Objective To explore the application value of dynamic airway computed tomography(DACT)based on retrospective ECG-gating technology in the diagnosis of cardiovascular-related airway stenosis.Methods A retrospective analysis was performed on the bronchoscopy and DACT data of 48 children clinically suspected of having congenital heart disease(CHD)or cardiovascular-related airway stenosis.The image quality of DACT was assessed,and the accuracy differences in diagnosing airway abnormalities between bronchoscopy and DACT were compared.The correlation between DACT and bronchoscopy in diagnosing the degree of airway steno-sis was also evaluated.Results The DACT image quality met diagnostic requirements for all children.There was no significant statistical difference in the diagnosis of airway abnormalities between DACT based on retrospective ECG-gating technology and bronchoscopy.A good correlation was observed between DACT and bronchoscopy in the grading of tracheal stenosis.Conclusion DACT based on retrospective ECG-gating technology can effectively address the issue of motion artifacts in CT scans among infants and young children.It has certain value in clarifying the diagnosis of cardiovascular-related airway stenosis,guiding treatment,and assessing prognosis.