Objective To construct large medical model named by "Huaxi HongYi"and explore its application effectiveness in assisting medical record generation. Methods By the way of a full-chain medical large model construction paradigm of "data annotation - model training - scenario incubation", through strategies such as multimodal data fusion, domain adaptation training, and localization of hardware adaptation, "Huaxi HongYi" with 72 billion parameters was constructed. Combined with technologies such as speech recognition, knowledge graphs, and reinforcement learning, an application system for assisting in the generation of medical records was developed. Results Taking the assisted generation of discharge records as an example, in the pilot department, after using the application system, the average completion times of writing a medical records shortened (21 min vs. 5 min) with efficiency increased by 3.2 time, the accuracy rate of the model output reached 92.4%. Conclusion It is feasible for medical institutions to build independently controllable medical large models and incubate various applications based on these models, providing a reference pathway for artificial intelligence development in similar institutions.

Purpose To investigate the correlation between intervertebral disc degeneration and paraspinal muscle fatty infiltration in chronic low back pain(CLBP)using quantitative MRI techniques.Materials and Methods A total of 63 CLBP patients and 42 volunteers in Zigong Fourth People's Hospital from September 2023 to March 2024 were retrospectively collected.Magnetic resonance scans were performed using multi-echo water-fat separation technique and T2 mapping technique.Intervertebral disc degeneration was assessed using the Pfirrmann grading,while paraspinal muscle fatty infiltration was evaluated using the Goutallier grading.Proton density fat fraction(PDFF)of the multifidus and erector spinae muscles,and T2 values of the nucleus pulposus were quantitatively measured.The relationships between these parameters and their associations with age and gender were analyzed.Results Compared with healthy volunteers,CLBP patients showed significantly reduced T2 values of the nucleus pulposusand significantly increased PDFF of the paraspinal muscles(Z=-5.54-4.65,all P<0.001).The Pfirrmann grading of intervertebral discs and the Goutallier grading of paraspinal muscles were significantly correlated with the T2 value of the nucleus pulposus and the PDFF of the paraspinal muscles(|r|>0.4,P<0.05).Age and Pfirrmann grading were independent predictors of paraspinal muscle fat infiltration(β=0.228-5.682,all P<0.001),and gender was also an independent predictor at the L4/5 intervertebral disc level(β=-2.834,-3.352,both P<0.05).Conclusion Intervertebral disc degeneration and paraspinal muscle fat infiltration are closely related in CLBP,age and gender also have an impact.

ObjectiveTo investigate the anti-inflammatory, antioxidant, and goblet cell-stimulating effects of a suspension of Ophiopogon japonicus (L. f.) Ker Gawl. (O. japonicus, Mai Dong) extract combined with hyaluronic acid (HA) in the mouse model with dry eye disease (DED).MethodsA DED mouse model was induced using benzalkonium chloride (BAK), followed by treatment with O. japonicus extract-containing eye drops at varying concentrations. Experimental groups included a normal control, a DED model control, a positive control, and an O. japonicus extract-treated group. Corneal fluorescein staining and tear break-up time (TBUT) were used to assess tear film stability and ocular surface integrity. Enzyme-linked immunosorbent assay (ELISA) measured inflammatory factor levels in corneal and conjunctival tissues, whereas Western blot (WB) analyzed key antioxidant and inflammatory markers, including nuclear factor erythroid 2-related factor (2Nrf2) and heme oxygenase 1 (HO-1). Periodic acid-schiff (PAS) staining and immunofluorescence were used to evaluate goblet cell density and mucin secretion.ResultsO. japonicus extract significantly improved corneal damage, reduced fluorescein staining scores, prolonged TBUT, and increased tear secretion. It downregulated inflammatory markers, including interleukin-8 (IL-8), interleukin-1β (IL-1β), and interferon-γ (IFN-γ) while upregulating Nrf2, HO-1, and the interleukin-13 (IL-13)/IFN-γ ratio, alleviating oxidative stress and inflammation. PAS staining showed increased conjunctival goblet cell density and restored mucin secretion, enhancing tear film stability.ConclusionO. japonicus extract demonstrated significant anti-inflammatory, antioxidant, and goblet cell-stimulating effects in a DED model, with good biocompatibility and promising therapeutic potential. Future research should optimize extraction processes and validate their efficacy and safety in clinical settings.

Nonunion of osteoporotic vertebral fractures (OVF), predominantly affecting the elderly, can lead to intractable pain, vertebral collapse, progressive kyphotic deformity, and neurological impairment, significantly compromising patients′ quality of life. There exists considerable debate on diagnosis and management of OVF, encompassing key issues such as clinical diagnosis and staging criteria for nonunion, surgical indications and procedure selection, and postoperative rehabilitation planning. Currently, there lacks standardized clinical guideline and expert consensus on the diagnosis and management of OVF nonunion in China. To address this gap, Minimally Invasive Surgery Group of Chinese Orthopedic Association, Osteoporosis Committee of Chinese Association of Orthopedic Surgeons, Prevention and Rehabilitation Committee for Osteoporosis of Chinese Association of Rehabilitation Medicine and Minimally Invasive Orthopedic Surgery Branch of China Association for Geriatric Care jointly organized domestic experts in spinal surgery, endocrinology, and rehabilitation to formulate the Clinical guideline for the diagnosis and treatment for nonunion of osteoporotic vertebral fractures ( version 2025), based on existing literature and clinical experience and adhering to principles of scientific rigor and practicality. The guideline provided 13 evidence-based recommendations encompassing diagnosis and treatment of OVF nonunion, aiming to standardize its clinical management.

Nonunion of osteoporotic vertebral fractures (OVF), predominantly affecting the elderly, can lead to intractable pain, vertebral collapse, progressive kyphotic deformity, and neurological impairment, significantly compromising patients′ quality of life. There exists considerable debate on diagnosis and management of OVF, encompassing key issues such as clinical diagnosis and staging criteria for nonunion, surgical indications and procedure selection, and postoperative rehabilitation planning. Currently, there lacks standardized clinical guideline and expert consensus on the diagnosis and management of OVF nonunion in China. To address this gap, Minimally Invasive Surgery Group of Chinese Orthopedic Association, Osteoporosis Committee of Chinese Association of Orthopedic Surgeons, Prevention and Rehabilitation Committee for Osteoporosis of Chinese Association of Rehabilitation Medicine and Minimally Invasive Orthopedic Surgery Branch of China Association for Geriatric Care jointly organized domestic experts in spinal surgery, endocrinology, and rehabilitation to formulate the Clinical guideline for the diagnosis and treatment for nonunion of osteoporotic vertebral fractures ( version 2025), based on existing literature and clinical experience and adhering to principles of scientific rigor and practicality. The guideline provided 13 evidence-based recommendations encompassing diagnosis and treatment of OVF nonunion, aiming to standardize its clinical management.

Inhibiting glutamine metabolism has been proposed as a potential treatment strategy for improving non-alcoholic steatohepatitis (NASH). However, effective methods for assessing dynamic metabolic responses during interventions targeting glutaminolysis have not yet emerged. Here, we developed a positron emission tomography (PET) imaging platform using l-[5-¹¹C]glutamine ([¹¹C]Gln) and evaluated its efficacy in NASH mice undergoing metabolic therapy with bis-2-(5-phenylacetamido-1,3,4-thiadiazol-2-yl)ethyl sulfide (BPTES), a glutaminase 1 (GLS1) inhibitor that intervenes in the first and rate-limiting step of glutaminolysis. PET imaging with [¹¹C]Gln effectively delineated the pharmacokinetics of l-glutamine, capturing its temporal-spatial pattern of action within the body. Furthermore, [¹¹C]Gln PET imaging revealed a significant increase in hepatic uptake in methionine and choline deficient (MCD)-fed NASH mice, whereas systemic therapeutic interventions with BPTES reduced the hepatic avidity of [¹¹C]Gln in MCD-fed mice. This reduction in [¹¹C]Gln uptake correlated with a decrease in GLS1 burden and improvements in liver damage, indicating the efficacy of BPTES in mitigating NASH-related metabolic abnormalities. These results suggest that [¹¹C]Gln PET imaging can serve as a noninvasive diagnostic platform for whole-body, real-time tracking of responses of glutaminolysis to GLS1 manipulation in NASH, and it may be a valuable tool for the clinical management of patients with NASH undergoing glutaminolysis-based metabolic therapy.

Peptide-drug conjugates (PDCs) have emerged as a promising modality in precision oncology, enabling targeted delivery of cytotoxic payloads while minimizing off-target toxicity. The integration of covalent warheads, such as those based on sulfur(VI) fluoride exchange (SuFEx) chemistry, enhances drug-target residence time and tumor accumulation. However, existing screening methods for covalent peptide (CP) libraries require post-translational warhead conjugation, limiting throughput. Here, we present an integrated mRNA display platform that incorporates covalent warheads during ribosomal synthesis, enabling efficient screening of ultra-diverse covalent macrocyclic peptide libraries (>10¹³ variants). This approach, using site-specific incorporation of N-chloroacetyl-d-phenylalanine and fluorosulfate-l-tyrosine, accelerated the discovery of irreversibly binding (K _i = 3.58 μmol/L) Nectin-4-targeting peptide CP-N1-N₃ via proximity-triggered SuFEx. The peptide was further conjugated to cytotoxic payloads, yielding the covalent PDC CP-N1-MMAE with potent cytotoxicity (IC₅₀ ≈ 43 nmol/L) against MDA-MB-468 cells. This platform establishes a new paradigm for precision covalent drug discovery.

Objective:To design a phonocardiographic gating device that was used in cardiac magnetic resonance imaging(MRI),so as to explore feasibility of synchronized acquisition for cardiac MRI.Methods:A phonocardiographic gating device was designed,which structure included a head of stethoscope,transmission pipeline,microphone and amplification filtering circuit,computer,and pseudo-electrocardiogram(ECG)trigger output circuit.The computer's runs included phonocardiographic recognition neural network of one-dimensional dilated convolutional layer and gating recurrent unit(GRU)layer,which parameters were determined by pre-train.The feasibility of using the phonocardiographic gating device in acquisition of cardiac MRI was explored by comparing the preparation time of examination and image quality for phonocardiographic gating device and ECG gating technique.Results:The average preparation time for the phonocardiographic gating device was(10.46±1.75)seconds,which was significantly shorter than that for ECG gating technique[(32.07±5.26)seconds](t=-11.02,P＜0.05).There were no statistically significant difference in the clarity of short-axis images of heart at end-systole and end-diastole,and the indicators of cardiac function between the two methods(P＞0.05).Conclusion:The phonocardiographic gating device can replace ECG gating for MRI examinations,which can effectively conduct triggering for phonocardiographic gating while reducing preparation time.It holds clinical application value,especially in equipment with high field strength.

Objective:To investigate the mechanism of inhibition for Janus tyrosine kinase,signal transducer and activator of transcription(JAK/STAT)on ferroptosis,myocardial remodeling,and JAK/STAT melatonin receptor 1-nuclear factor E2-related factor 2-glutathione peroxidase 4(MT1-Nrf2-GPX4)signaling axis in rats with heart failure(HF)under echocardiography.Methods:Forty SD rats were selected,and they were randomly divided into blank control group,model group,interleukin-6(IL-6)group and tyrosine phosphorylation inhibitor(AG490)group according to random number table,with 10 rats in each group.HF rat models were established in three groups except the blank control group.The expression levels of JAK/STAT mRNA in myocardial tissue among 4 groups were compared and analyzed.The small animal ultrasound imaging system was used to measure a series of cardiac function indexes included interventricular septum(IVS)thickness,left ventricular posterior wall(LVPWs)thickness,left ventricular posterior wall(LVPWd)thickness,left ventricular end-diastolic diameter(LVEDD),left ventricular end-systolic diameter(LVESD)and ejection fraction(EF).The Fe2+concentration and lesions of myocardial tissue,as well as the expressions of MT1,Nrf2 and GPX4 proteins,in the four groups were compared and analyzed.Results:The increases of JAK1 and STAT3 mRNA levels,and Fe2+concentration in the model group,IL-6 group and AG490 group were higher than those in the blank control group,and the protein expression levels of MT1,Nrf2 and GPX4 in them were lower than those in the blank control group,and the differences of the above indicators between the model group and the blank control group were statistically significant(t=11.810,16.250,17.150,10.460,9.272,11.180,P＜0.05),and the differences of the above indicators between the IL-6 group and the blank control group were statistically significant(t=9.834,19.030,16.320,14.450,13.250,14.070,P＜0.05),and the differences of them between the AG490 group and the blank control group were statistically significant(t=8.025,11.050,17.590,4.173,4.179,4.183,P＜0.05),respectively.The levels of STAT3 mRNA level and Fe2+concentration in IL-6 group were higher than those in the model group,and the expression levels of MT1,Nrf2 and GPX4 proteins in that were lower than those in the model group,and the differences were statistically significant(t=2.224,2.582,3.550,3.078,2.624,P＜0.05),respectively.The levels of JAK1,STAT3 mRNA and Fe2+concentration in the AG490 group were lower than those in the model group,and the levels of MT1,Nrf2 and GPX4 in that were higher than those in the model group,and the differences were statistically significant(t=4.052,6.930,8.598,6.247,5.055,6.799,P＜0.05),respectively.The IVS,LVPWs,LVPWd and EF of the model group,IL-6 group and AG490 group were lower than those of the blank control group,and the LVEDD and LVESD of them were higher than those of the blank control group,and the differences of these indicators between the model group and the blank control group were statistically significant(t=13.740,11.100,5.654,7.049,13.440,14.260,P＜0.05),and the differences of them between the IL-6 group and the blank control group were statistically significant(t=16.090,13.140,8.103,9.174,15.940,17.010,P＜0.05),and the differences of them between the AG490 group and the blank control group were statistically significant(t=5.474,4.947,2.682,4.071,8.608,13.300,P＜0.05),respectively.The LVPWd and EF in the IL-6 group were lower than those in the model group,and the LVEDD and LVESD in the IL-6 group were higher than those in the model group,and the differences of them were statistically significant(t=2.417,2.327,2.236,2.818,P＜0.05),respectively.The IVS,LVPWs,LVPWd and EF in the AG490 group were higher than those in the model group,and the LVEDD and LVESD in that were lower than those in the model group,and the differences were statistically significant(t=8.598,7.147,3.514,3.361,4.914,2.970,P＜0.05),respectively.Conclusion:Inhibition of JAK/STAT expression can improve the cardiac structure of HF rats,and relieve ventricular remodeling,and inhibit ferroptosis of cardiomyocyte,and promote the expression of MT1,Nrf2 and GPX4 proteins.

With reference to the Information and Documentation-Resource Description (GB/T 3792-2021) and Bibliographical Description for Ancient Chinese Books (GB/T 3792.7-2008) and other cataloging standards and rules, drawing on the practical experience of cataloging ancient TCM books, Bibliographical Cataloging for Ancient TCM Books was formulated. This standard specifies the entry items and their order of ancient TCM books, cataloging identifier, cataloging text, cataloging information source, and cataloging item details. The standard can provide standardized and unified guiding principles and methods for the work of ancient TCM books, and promote the sharing and utilization of ancient TCM books.