Premature ovarian insufficiency （POI） is a reproductive endocrine disorder that severely affects female reproductive health. However， there remains a lack of clinically effective and safe therapeutic options to restore ovarian function. Traditional Chinese medicine （TCM）， with its advantages of multi-component and multi-target holistic regulation， has shown unique potential in the prevention and treatment of POI. Among TCM monomers， curcumin， resveratrol， and icariin exert antioxidant， anti-inflammatory， and anti-ovarian granulosa cell apoptosis effects by regulating signaling pathways such as nuclear factor-erythroid 2-related factor 2/heme oxygenase-1， phosphoinositide 3-kinase/protein kinase B， and mitogen-activated protein kinase. Single TCM herbs， including American ginseng， Cuscutae Semen， and Cistanches Herba， can regulate sex hormone levels， and alleviate ovarian oxidative stress and immune damage. TCM compound formulas such as Yijing decoction， Siwu decoction， Zuogui pill， and Kuntai capsule modulate multiple signaling pathways， including vascular endothelial growth factor/vascular endothelial growth factor receptor-2， phosphoinositide 3-kinase/protein kinase B/mammalian target of rapamycin， and silence information regulator 1/p53， thereby promoting angiogenesis， inhibiting mitochondrial apoptosis， and regulating autophagy and ferroptosis， which ultimately delay follicular atresia and improve ovarian reserve function. Further studies are suggested to apply artificial intelligence to deeply explore the underlying mechanisms and carry out high-quality clinical trials， so as to promote the standardized application of TCM in the prevention and treatment of POI.

Objective:To investigate the effect of dandelion polysaccharide(DP)on inflammatory response and the protein expression of S100 calcium binding protein A8/A9(S100A8/A9)in lung tissue and small intestinal tissue of rats with multiple organ dysfunction syndrome(MODS).Methods:The two-hit method of hemorrhagic shock and intraperitoneally injected lipopolysaccharide was used to establish a rat model of MODS,and the rats were divided into sham-operation group,model group,low-dose DP group,and high-dose DP group.The organ coefficient and wet/dry weight ratio of the lung and the small intestine were observed for each group of rats;HE staining was used to observe the pathomorphological changes of lung tissue and small intestinal tissue;immunohistochemical staining was used to measure the expression of interleukin-1β(IL-1β),interleukin-6(IL-6),and interleukin-10(IL-10)in lung tissue and small intestinal tissue;Western blot was used to measure the protein expression level of S100A8/A9 in lung tissue and small intestinal tissue.Results:Compared with the sham-operation group,the model group had significant increases in the organ coefficient of the lung(5.849±0.824),the wet/dry weight ratio of the lung(6.556±0.631),the wet/dry weight ratio of the small intestine(6.356±0.535),and the wet weight/length ratio of the small intestine(73.950±5.569).HE staining showed that that the model group had massive in-flammatory cell infiltration in alveolar space and pulmonary interstitium,thickened alveolar wall,and disintegration and fragmentation of the villi of the small intestine,with inflammatory cell infiltration and proliferation of segmental aggregated lymphoid follicles.In the model group,S100A8/A9 was mainly expressed in neutrophils and macrophages,and there were increases in the expression of S100A8/A9,IL-1β,and IL-6 and a reduction in the expression of IL-10 in the lung tissue and small intestinal tissue of rats.After treatment with high-dose DP,there were reductions in the organ coefficient of the lung(4.297±0.462),the wet/dry weight ratio of the lung(5.313±0.495),the wet/dry weight ratio of the small intestine(5.398±0.388),and the wet weight/length ratio of the small intestine(59.417±2.891).The high-dose group also had alleviation of pathological injury in the small intestine,with reductions in the expres-sion of S100A8/A9,IL-1β,and IL-6 and an increase in the expression of IL-10 in lung tissue and small intestinal tissue.Conclusion:DP may alleviate inflammatory response in lung and small intestinal injuries of rats with MODS by inhibiting the expression of S100A8/A9.

Objective To investigate the dosimetry effect of Sum Plan and Bias Plan in the Monaco planning system for the addition of compensatory agents after left breast cancer surgery.Methods Twenty-nine patients with radical left mastectomy who received radiotherapy in this hospital from March 2023 to Feb-ruary 2024 were selected as the study objects.Based on the Monaco planning system and under the same opti-mal conditions,Sum Plan and Bias Plan were used to design the second-course plan based on the first-course plan.Sum Plan C1 and Bias Plan C2 were generated to compare the dosimetry differences of intensity modula-ted radiotherapy(IMRT)plans under the two dosimetric superposition methods.Results Compared with Sum Plan C1,the conformability index(CI)in the planned target area(PTV)of Bias Plan C2 was worse,the homogeneity index(HI)was better,and the mean cardiac dose(Dmean),V5,V10,V30,V40 in the organs at risk were better than that of Sum Plan C1.The Dmean,V5,V20 and contralateral V5 in the affected lung were lower,while the V5,V10,V15,V20,V25,V30 in the normal tissue were lower,while V35 was higher,and the number of subfields and machine hops were more,the difference was statistically significant(P＜0.05).Conclusion Bias Plan dose overlay method was proposed in the design of segmental radiotherapy with compensator after left breast cancer surgery.

Polygonatum sibiricum， as a traditional Chinese medicine with both medicinal and edible properties， has attracted considerable attention due to its functions of nourishing Yin and moistening the lungs， tonifying the spleen and benefiting Qi， and nourishing the kidneys and filling essence. Recent studies have demonstrated that Polygonatum sibiricum plays a significant role in regulating the immune system， effectively enhancing and improving the morphology and function of immune organs， stimulating the proliferation and activation of immune cells， and regulating the secretion and release of immune factors， thereby enhancing the immune function of the body and improving various immune-related diseases. Although a large number of studies have explored the pharmacological effects and mechanisms of P. sibiricum， there has been no systematic review and summary of its immune regulatory activity and mechanisms. Therefore， this article comprehensively reviews the research achievements of P. sibiricum polysaccharides and saponins in the field of immune regulation in recent years， and further sorts out the immune regulatory mechanisms of P. sibiricum in multiple aspects： including increasing the organ index of the spleen and thymus， increasing the number and activity of tumor-suppressive bone marrow hematopoietic stem cells， improving intestinal flora imbalance， regulating the quantity and proportion of T lymphocyte subsets， increasing the level of immunoglobulin， promoting the proliferation of macrophages， enhancing the activity of natural killer cells， increasing the number of white blood cells， and promoting the maturation of dendritic cells， providing a solid theoretical basis and scientific evidence for the research and application of P. sibiricum， and promoting its development and application in traditional Chinese medicine immune enhancers and various functional products.

Objective:To investigate the neurorestorative effect of basic fibroblast growth factor (bFGF) on neurological function recovery in rats with spinal cord injury and its potential mechanisms.Methods:Ninety adult SD rats were selected and randomly divided into 6 groups using a random number table: sham-operated group ( n=24), spinal cord injury group ( n=24), bFGF group ( n=24), bFGF autophagy pathway validation group ( n=6), bFGF+rapamycin group ( n=6), and bFGF+MHY1485 group ( n=6). A spinal cord injury model was established by impacting the T 10 spinal cord segment using a self-made Allen′s weight-drop impactor. The sham-operated group underwent a 3 cm midline dorsal incision without spinal cord injury; the bFGF group received immediate intrathecal injection of 100 μl bFGF solution (20 μg/L) after injury; the sham surgery group and spinal cord injury group received an equal volume of saline after injury; the bFGF autophagy pathway validation group received the identical treatment as the bFGF group; the bFGF+rapamycin group received the same treatment as the bFGF group with additional intraperitoneal injection of rapamycin (4 mg·kg -1·d -1); the bFGF+MHY1485 group received the identical bFGF treatment plus intraperitoneal injection of MHY1485 (10 mg·kg -1·d -1). At 28 days after injury, the rats were sacrificed and the spinal cord tissue was collected at 5 mm from the injury epicenter for HE staining and pathological observation. At 7, 14, 21, and 28 days after injury, BBB scoring was used to assess hindlimb motor function; P wave latency and P1-N1 wave amplitude were recorded to evaluate neuroelectrophysiological changes; Western blot analysis was performed to detect the expression levels of phosphorylated mammalian target of rapamycin (p-mTOR)/mammalian target of rapamycin (mTOR) and microtubule-associated protein light chain 3-II (LC3-II) and evaluate changes in mTOR signaling pathway and autophagy activity. At 28 days after injury, behavioral alterations, neuroelectrophysiological changes, and auctophagy-related protein expression levels were assessed in the bFGF autophagy pathyway validation group, bFGF+rapamycin group and bFGF+MHY1485 group. Results:At 28 days after injury, the sham-operated group exhibited regular nuclear morphology, while the spinal cord injury group showed disordered cell structures and the bFGF group displayed relatively normal nuclear morphology. At 7, 14, 21, and 28 days after injury, the BBB scores in both the spinal cord injury group and bFGF group were lower than those in the sham-operated group ( P<0.01), with higher scores in the bFGF group than those in the spinal cord injury group ( P<0.01). At 7, 14, 21, and 28 days after injury, P-wave latency was longer and P1-N1 wave amplitude was lower in both the spinal cord injury group and bFGF group compared to those in the sham-operated group ( P<0.01), with shorter P-wave latency and higher P1-N1 wave amplitude in the bFGF group compared to those in the spinal cord injury group ( P<0.01). Western blot results indicated that at 7, 14, 21, and 28 days after injury, in the spinal cord injury group, p-mTOR/mTOR levels were lower than those in both the sham-operated group and bFGF group ( P<0.01), while LC3-II expression levels were higher ( P<0.01); in the bFGF group, p-mTOR/mTOR levels were higher than those in the spinal cord injury group but lower than those in the sham-operated group ( P<0.01), and LC3-II expression levels were lower than those in the spinal cord injury group but higher than those in the sham-operated group ( P<0.01). At 28 days after injury, the BBB scores were higher in both the bFGF autophagy pathway validation group and bFGF+MHY1485 group than those in the bFGF+rapamycin group ( P<0.01), with higher scores in the bFGF+MHY1485 group than those in the bFGF autophagy pathway validation group ( P<0.01). P-wave latency was shorter in both the bFGF autophagy pathway validation group and bFGF+MHY1485 group than those in the bFGF+rapamycin group ( P<0.01), with shorter P-wave latency in the bFGF+MHY1485 group than that in the bFGF autophagy pathway validation group ( P<0.01). P1-N1 wave amplitude was lower in both the bFGF autophagy pathway validation group and bFGF+MHY1485 group than that in the bFGF+rapamycin group ( P<0.01), with lower P1-N1 wave amplitude in the bFGF+MHY1485 group than that in the bFGF autophagy pathway validation group ( P<0.01). The p-mTOR/mTOR levels were higher in both the bFGF autophagy pathway validation group and bFGF+MHY1485 group than those in the bFGF+rapamycin group ( P<0.01), with higher p-mTOR/mTOR levels in the bFGF+MHY1485 group than those in the bFGF autophagy pathway validation group ( P<0.01). The LC3-II expression levels were higher in both the bFGF autophagy pathway validation group and bFGF+MHY1485 group than those in the bFGF+rapamycin group ( P<0.01), with higher LC3-II expression levels in the bFGF+MHY1485 group than those in the bFGF autophagy pathway validation group ( P<0.01). Conclusion:bFGF can improve the pathological state, motor behavior, and neuroelectrophysiological function in rats with spinal cord injury, for which the mechanism of action may involve downregulating cellular autophagy function by activating the mTOR pathway, thereby inhibiting excessive autophagy to promote neuronal regeneration and repair.

Objective:To analyze the genetic characteristics of hemagglutinin（HA）and neuraminidase（NA）of influenza A（H1N1）pdm09 viruses in Kunming during the 2022-2023 influenza season.Methods:A total of 15 strains of A（H1N1）pdm09 influenza virus isolated from sentinel hospital surveillance and from outbreaks from April 2022 to March 2023 in Kunming were chosen for sequencing. The genetic analysis，which included sequence alignment，homology analysis，construction of phylogenetic tree and amino-acid mutations analysis，was carried out using MAFFT version 7，MegAlign and MEGA 11.Results:Fourteen strains isolated during the 2022-2023 influenza season in Kunming belong to clade 6B.1A.5a.2a，and A/Kunming/284/2023 belonged to clade 6B.1A.5a.2a.1. They all diverged from the northern hemisphere vaccine strain A/Wisconsin/588/2019 in clade 6B.1A.5a.2 recommended by WHO during the 2022-2023 influenza season. Comparing with the HA of the vaccine strain：A186T and Q189E，which might cause the reduction of vaccine protection，were identified in Sb of 14 strains；P137S，K142R in Ca and A186T，Q189E in Sb were identified in A/Kunming/284/2023 and two strains isolated from Thailand. The four mutations at tow antigenic sites identified immune escape at the molecular level. Q189E in the 190-helix and E224A in the 220-loop，which might change the pathogenicity of A（H1N1）pdm09 viruses，were identified in 15 strains. Comparing with NA of the vaccine strain：S200N in 14 strains and S339L in 1 strain were identified in antigenic sites. The two mutations might reduce the protection of antibodies induced by NA.Conclusion:Strengthening influenza surveillance and timely detecting new variants in Kunming contributes to preventing the importation of foreign strains and issuing early warnings for influenza outbreaks.

Sonodynamic therapy (SDT) can potentially induce immunogenic cell death in tumor cells, leading to the release of ATP, and facilitating the initiation of an immune response. Nevertheless, the enzymes CD39 and CD73 can swiftly convert ATP into immunosuppressive adenosine (ADO), resulting in an immunosuppressive tumor microenvironment (TME). This study introduced a nanomedicine (QD/POM1@NP@M) engineered to reprogram TME by modulating the CD39/CD73/ADO pathway. The nanomedicine encapsulated sonosensitizers silver sulfide quantum dots, and the CD39 inhibitor POM1, while also incorporating homologous tumor cell membranes to enhance targeting capabilities. This integrated approach, on the one hand, stimulates the release of ATP via SDT, thereby initiating the immune response. In addition, it reduced the accumulation of ADO by inhibiting CD39 activity, which ameliorated the immunosuppressive TME. Upon administration, the nanomedicine demonstrated substantial anti-tumor efficacy by facilitating the infiltration of anti-tumor immune cells, while reducing the immunosuppressive cells. This modulation effectively transformed the TME from an immunologically "cold" state to a "hot" state. Furthermore, combined with the checkpoint inhibitor α-PDL1, the nanomedicine augmented systemic anti-tumor immunity and promoted the establishment of long-term immune memory. This study provides an innovative strategy for combining non-invasive SDT and ATP-driven immunotherapy, offering new ideas for future cancer treatment.

Objective:To investigate the roles of simulated participants in the facilitation of medical scenarios simulation-based course and to provide a reference for the standardized construction of medical scenarios simulation-based course.Methods:Thirty scenario simulation-based teaching sessions on perioperative crisis events conducted during the 2022-2023 academic year were observed on-site. The performance of simulated participants in facilitating case execution and the skills used in facilitation were observed and recorded. At the end of the course, surveys regarding facilitation were administered to students, simulated participants, and instructors for analysis.Results:In the facilitation of 30 scenario simulation-based teaching sessions on perioperative crisis events, the roles of simulated participants included surgeon, anesthesia nurse, circuit nurse, and standardized patient. Two simulated participants accounted for 80.00% and three participants for 20.00% of the total sessions. The simulated participants performed excellently in helping the learners quickly integrate into the scenario and controlling the direction of the case, with an excellence rate of 90.00%-100.00%. However, they had some variations in driving the progress of the case and responding to unexpected situations, with an excellence rate of 50.00%-60.00%. The facilitation skills used by simulated participants included hinting, prompting, and instructing. The performance of facilitation was closely related to the use of skills by the simulated participants. Simulated participants with proficient skill usage significantly enhanced teaching effectiveness. Post-session surveys revealed that learners generally perceived simulated participants as having a positive impact on facilitation, and both simulated participants and instructors emphasized the need for strengthened communication prior to simulation-based teaching.Conclusions:The simulated participants played important roles in guiding learners, advancing case progression, and achieving teaching objectives. Instructors should not only consider the scripting of simulated participants during lesson planning but also prioritize their training and communication during course implementation.

Phage immunoprecipitation sequencing (PhIP-Seq) is a high-throughput and low-cost method for analyzing the specific binding of target proteins to peptide libraries. The method uses oligonucleotide library synthesis (OLS) to encode proteome-scale peptide libraries for display on phages, and then immunoprecipitates these library phages with target proteins (such as antibodies) for subsequent analysis by high-throughput DNA sequencing. PhIP-Seq enables the screening of peptide targets that react specifically with hundreds of proteins or pathogens. PhIP-Seq has been successfully applied in various fields such as disease detection, screening of autoimmune disease biomarkers, vaccine development, and allergen detection, becoming a high-throughput diagnostic technology. This article systematically describes the development, applications, and result evaluation of PhIP-Seq, in order to gain a more comprehensive understanding of the application and future development prospects of this technology in various fields.
Peptide Library ; Humans ; Immunoprecipitation/methods* ; High-Throughput Nucleotide Sequencing/methods* ; Bacteriophages/genetics*

Objective:To investigate the curative effect and mechanism of hyperbaric oxygen therapy on nonalcoholic fatty liver disease in mice.Methods:Twenty-one 8-week-old male C57BL/6J mice were divided into three groups: control group (normal diet), model group (high-fat and high-cholesterol diet), and hyperbaric oxygen group (high-fat and high-cholesterol diet + hyperbaric oxygen therapy), with seven mice in each group. The changes in body weight, serum liver enzymes, and blood lipids were compared after treatment between the three groups. Hematoxylin-eosin staining, Oil Red O staining, Sirius red staining, and F4/80 immunohistochemical staining were used to observe the pathological changes in liver tissues. RT-qPCR and Western blot methods were used to detect the expression levels of oxidative stress and inflammatory factors. One-way analysis of variance was used for comparison among the groups.Results:Mice in the hyperbaric oxygen group had significantly improved liver histopathology. The serological levels of alanine aminotransferase, aspartate aminotransferase, and cholesterol were (77.50±13.59) U/L, (156.06±23.68) U/L, and (4.80±0.53) mmol/L, which were significantly lower than those in the model group [(109.43±16.88) U/L, (216.62±18.79) U/L, and (5.86±0.53) mmol/L, P<0.05], and accompanied by lower levels of lipid deposition, macrophage infiltration, and fibrosis. In addition, compared with the model group, the expression of antioxidant stress protein nuclear transcription factor erythroid 2-related factor 2 [(0.30±0.06) and (2.16±1.21), P<0.05] and heme oxygenase-1 [(0.48±0.19) and (1.01±0.18), P<0.05] in liver tissue showed an upward trend following hyperbaric oxygen treatment, which was also validated at the transcriptional level ( P<0.05). Simultaneously, compared with the model group, the mRNA expressions of tumor necrosis factor-α [(2.60±0.71) and (0.66±0.15), P<0.05], interleukin-1β [(2.41±1.01) and (0.78±0.23), P<0.05], and interleukin-6 [(3.61±2.17) and (0.94±0.25), P<0.05] in the liver tissue of mice in the hyperbaric oxygen group were decreased. The tumor necrosis factor-α protein level [(7.50±4.73) and (1.05±0.58), P<0.05] and interleukin-1β [(1.65±0.35) and (1.02±0.02), P<0.05] was reduced following hyperbaric oxygen treatment compared with those in the model group. Conclusion:Hyperbaric oxygen therapy can slow down the progression of nonalcoholic fatty liver disease by regulating the levels of oxidative stress and inflammation in the mice.