At present, the treatment of sepsis depends largely on non-specific methods, highlighting an urgent need for novel therapeutic strategies. Stem cells have garnered significant attention in the treatment of various diseases due to their unique biological properties. Stem cells enhance sepsis survival through mechanisms such as reducing bacterial burden, modulating inflammation, and ameliorating organ dysfunction. Recent studies have shown that stem cells can increase the survival rate of sepsis patients through multiple pathways such as reducing the bacterial load of the host, regulating inflammatory homeostasis, and improving multi-organ dysfunction. Their derivatives, exosomes, can also alleviate the imbalanced immune response in sepsis patients. Recent advances in stem cell-based therapies for sepsis were summarized in this paper.

The prototype willingness model (PWM), a dual process model consisting of a rational pathway and a social reactive pathway, offers a more comprehensive and appropriate theoretical framework for understanding adolescent risk behaviors. To elucidate the formation mechanisms of three key adolescent risk behaviors (alcohol drinking, smoking, and social media risk disclosure behaviors), the paper systematically reviews the application process of the PWM in these three major adolescent risk behaviors and compares the similarities and differences in its core variables and underlying mechanisms across different behavior types. The paper contributes to a deeper understanding of the causes of typical adolescent risk behaviors and offers theoretical and empirical support for the development of targeted intervention strategies.

OBJECTIVE To preliminarily investigate the antiasthmatic effect and mechanism of Ephedrae Herba-Armeniacae Semen Amarum herb pair on the respiratory center. METHODS Male SD rats were randomly divided into blank group， model group， dexamethasone group （positive control）， and Ephedrae Herba-Armeniacae Semen Amarum 2∶1， 1∶1 and 1∶2 groups. Rats in each group were administered different ratios of the herb pair decoction [all at 18 g （crude drug）/kg]， dexamethasone suspension （0.5 mg/kg）， or normal saline intragastrically twice daily for seven consecutive days. Forty minutes after the last administration， medicated cerebrospinal fluid was collected to determine the content of effective components entering the brain. One and a half hours after the last administration， the nucleus tractus solitarius （NTS） was located using a stereotaxic apparatus. Histamine phosphate （1 μL） was injected into the NTS region at a constant rate of 1 μL/min using a 10 μL microsyringe to induce excitation of the respiratory center in rats； the blank group was injected with normal saline. The contents of neurotransmitters [nerve growth factor （NGF）， substance P （SP）， norepinephrine （NA）， 5-hydroxytryptamine （5-HT） and acetylcholine （Ach）] in the medulla oblongata brain tissue were detected. The mRNA expressions of neurokinin-1 receptor （NK-1R）， p38 mitogen-activated protein kinase （MAPK）， and c-fos in the medulla oblongata， as well as the protein expressions of NK-1R， p38 MAPK， and c-fos in the NTS region， were determined. RESULTS The main active components of Ephedrae Herba-Armeniacae Semen Amarum herb pair entering the brain were ephedrine， pseudoephedrine， and methylephedrine. Compared with blank group， the contents of NGF， SP， NA， 5-HT and Ach， and the relative expression levels of NK-1R， p38 MAPK， and c-fos mRNA and protein were significantly increased in the model group （ P ＜0.01）. Compared with model group， Ephedrae Herba-Armeniacae Semen Amarum herb pair groups with different ratios significantly reduced the neurotransmitter contents and the relative expression levels of NK-1R， p38 MAPK， and c-fos mRNA and protein （ P ＜0.01）， with the 2∶1 Ephedrae Herba-Armeniacae Semen Amarum herb pair and 1∶1 mass ratios showing relatively better effects. CONCLUSIONS Ephedrae Herba alkaloids are the main active components in affecting the function of the respiratory center. The herb pair groups with a larger proportion of Ephedrae Herba exhibit stronger effects. Ephedrae Herba-Armeniacae Semen Amarum herb pair can reduce the excitability of the respiratory center by down-regulating the expression of the NK-1R/MAPK/c-fos pathway in the NTS and decreasing the abnormal release of neurotransmitters such as NGF and SP.

ObjectiveTo observe the effect of functional pelvic floor muscle training on pelvic floor muscle function, incontinence symptoms and quality of life in female patients with stress urinary incontinence (SUI). MethodsFrom February, 2024 to July, 2025, 40 female patients with SUI were recruited from Beijing Bo'ai Hospital and advertisements. They were randomly divided into control group (n = 20) and experimental group (n = 20). The control group received conventional pelvic floor muscle contraction and relaxation training, and the experimental group received functional pelvic floor muscle contraction and relaxation training, for eight weeks. The data of pelvic floor muscle strength, pelvic floor muscle surface electromyography (sEMG), 1-hour urine pad test and Incontinence Quality of Life questionnaire (I-QOL) were collected before and after training. The compliance rate was counted after training. ResultsOne case dropped down in the control group and three cases dropped down in the experimental group. After treatment, the pelvic floor muscle strength increased in both groups (|Z| > 3.317, P < 0.01), the pre-resting average value, sustained contraction average value and durable contraction average value of sEMG improved in the control group (|t| > 2.731, P < 0.05), the mass of 1-hour urine pad significantly reduced (t > 9.215, P < 0.001) and the I-QOL score significantly increased (|t| > 13.229, P < 0.001) in both groups; compared with the control group, the pelvic floor muscle strength significantly increased (Z = -2.281, P = 0.023), the mass of 1-hour urine pad significantly reduced (t = 4.215, P < 0.001), the I-QOL score significantly increased (t = -4.501, P < 0.001), and the compliance rate significantly increased (Z = -2.798, P < 0.01) in the experimental group . ConclusionFunctional pelvic floor muscle training can significantly improve pelvic floor muscle strength, incontinence symptoms and quality of life in female patients with SUI.

Objective: To explore the association between body composition patterns and dyslipidemia in adolescents, so as to provide scientific evidence for developing strategies to prevent and manage dyslipidemia. Methods: A total of 1 371 adolescents aged 12-18 years were selected from Yinchuan City in 2020 and 2023 by using a combination of convenience sampling and stratified cluster sampling. All participants completed questionnaire surveys, physical examinations, body composition measurements and blood lipid tests. Principal component analysis was used to extract body composition patterns, and participants were divided into quartiles( Q 1- Q 4) based on the score of each factor. Logistic regression combined with restricted cubic spline (RCS) analysis was used to examine the associations between body composition patterns and dyslipidemia, and analyses were stratified by gender. Results: The prevalence of dyslipidemia among adolescents was 30.0%, with 27.4% for boys and 35.2% for girls. Principal component analysis extracted four body composition patterns:the fat mass pattern (eigenvalue=12.86, variance contribution rate=46.92%), the lean body mass pattern (eigenvalue=6.86, variance contribution rate=30.42%), the trunk dominant fat distribution pattern (eigenvalue=1.58, variance contribution rate=8.58%), and the trunk dominant lean body mass distribution pattern (eigenvalue=1.05, variance contribution rate=7.19%). According to the results of Logistic regression analysis, after adjusting confounding factors such as age, smoking, and alcohol consumption, compared with Q 1 group, adolescents in the Q 4 group of the fat mass pattern and the trunk dominant fat distribution pattern had increased risks of dyslipidemia ( OR =4.07,1.68), while adolescents in the Q 2 group of the lean body mass pattern had a decreased risk of dyslipidemia ( OR =0.59) (all P <0.05). RCS analysis showed nonlinear associations of the fat mass pattern and lean body mass pattern with dyslipidemia among adolescents (both P non-linearity <0.05), and the trunk dominant fat distribution pattern showed a linear association with dyslipidemia ( P-non linearity > 0.05 ). Among boys, the fat mass pattern and lean body mass pattern were associated with dyslipidemia ( OR =1.62,1.77), and a similar association for the fat mass pattern was also observed among girls ( OR =1.39)(all P <0.05). A similar association for the trunk dominant fat distribution pattern was observed only among boys （OR =1.46, P <0.05), with a significant gender interaction ( P interaction <0.05). Conclusions Increased fat mass and trunk fat accumulation in adolescents are associated with a higher risk of dyslipidemia, while moderate lean body mass plays a protective role. Controlling fat accumulation and maintaining appropriate lean body mass contribute to the prevention and management of dyslipidemia in adolescents.

Objective:To evaluate the effect of the degree of neuromuscular blockade on the intraoperative surgical conditions and postoperative recovery quality in patients undergoing lumbar interbody fusion.Methods:In this randomized controlled trial, 100 patients of either sex, aged 18-79 yr, with a body mass index of 18.5-35.0 kg/m 2, of American Society of Anesthesiologists Physical Status classification < Ⅳ, scheduled for elective lumbar interbody fusion at the Affiliated Hospital of Xuzhou Medical University from August to October 2024, were allocated into 2 groups ( n=50 each) using stratified randomization based on the number of lumbar segments: deep neuromuscular blockade group (group D) and moderate neuromuscular blockade group (group M). The intraoperative post-tetanic count was maintained at 1 or 2 in group D, and the intraoperative train-of-four was maintained at 1 or 2 in group M. The scores for surgical conditions, duration of operation, blood loss, length of incision, occurrence of severe hypoxemia after extubation, requirement for rescue analgesia in post-anesthesia care unit, 15-item Quality of Recovery scale score and length of stay were recorded. Results:Compared with group M, the scores for surgical conditions were significantly increased, the rate of rescue analgesia in post-anesthesia care unit was decreased, 15-item Quality of Recovery scale scores were increased at 3 days after surgery ( P<0.05), and no significant changes were found in the duration of operation, blood loss, length of incision, incidence of severe hypoxemia after extubation and length of hospital stay in group D ( P>0.05). Conclusions:Compared with moderate neuromuscular blockade, deep neuromuscular blockade can provide better surgical conditions and improve the quality of early postoperative recovery for patients undergoing lumbar interbody fusion.

The paper presents a case of 69-year-old male with marginal zone lymphoma (MZL) manifesting as acute kidney injury (AKI) requiring emergency hemodialysis. The patient presented with fever, fatigue and rapidly progressive renal dysfunction, and serum creatinine was 1 105 μmol/L. Emergency central venous catheterization and hemodialysis were performed. Serum immunofixation electrophoresis revealed monoclonal IgM and λ light chain positivity. Autoantibody testing showed positivity for both anti-SSA and anti-SSB antibodies. Renal biopsy demonstrated interstitial infiltration by atypical B lymphocytes with λ light chain restriction. The diagnosis of MZL was confirmed by bone marrow biopsy. Following hemodialysis and chemotherapy with bendamustine plus rituximab, renal function significantly improved and remained stable during follow-up. This case highlights that AKI may serve as the initial manifestation of lymphoma, underscoring the importance of considering hematologic malignancies in the differential diagnosis of unexplained renal failure.

Objective:To investigate the potential utility of the lymphocyte to monocyte ratio (LMR) and its modified index, albumin-LMR product, as predictive biomarkers for disease activity and presence of lupus nephritis in systemic lupus erythematosus (SLE).Methods:A total of 264 patients with newly diagnosed SLE who were treated at Henan Provincial People′s Hospital between December 2016 and September 2022 were included in this study. Their clinical data were subsequently collected for analysis. Patients were classified into non-active disease group (SLEDAI<5, n=55) and active disease group(SLEDAI≥5, n=209) based on the SLE SLEDAI. The Mann-Whitney U test was employed to compare the differences in clinical parameter levels, LMR and albumin-LMR product between the two groups. Additionally, the active disease group was further stratified into mild(SLEDAI 5~9, n=86), moderate(SLEDAI 10~14, n=96) and severe (SLEDAI≥15, n=27) subgroups to assess differences in LMR and albumin-LMR product. Further more patients were stratified into two groups based on renal involvement: those without lupus nephritis(non-LN) and those with lupus nephritis (LN). For non-parametric comparisons, the Mann-Whitney U test was used for intergroup comparisons between two groups, while the Kruskal-Wallis H test was applied for comparisons among three groups. If the Kruskal-Wallis H test revealed statistically significant differences ( P<0.05), pairwise comparisons were performed using the Mann-Whitney U test, and the significance level was adjusted using the Bonferroni method to account for multiple testing.Correlations between LMR, albumin-LMR product, and disease activity indicators were analyzed using Spearman′s correlation. The diagnostic value of LMR and albumin-LMR product for SLE activity was evaluated using the receiver operating characteristic (ROC) curves. Results:Both LMR and albumin-LMR product were significantly lower in active disease group compared to the non-active group {LMR:3.56 (2.15, 5.00) vs. 5.68 (3.89, 7.00); albumin-LMR product [93.21 (59.50, 143.98)g/L] vs. [187.89 (137.67, 260.90)]g/L, Z=-5.68, -7.05, P<0.001 for all}. Further subgroup analysis revealed that LMR and albumin-LMR product levels in severe, moderate, and mild active disease were also significantly decreased compared to the non-active disease group {LMR:3.83(1.78, 5.09)、3.09(2.06, 4.90)、3.65(2.45, 5.03) vs. 5.68(3.89, 7.00); albumin-LMR product: [95.69(66.57, 121.61)]g/L、[79.82(49.02, 126.91)]g/L、[104.73(69.21, 169.01)]g/L vs. [187.89(137.67, 260.90)]g/L, H=34.27, 58.29, P<0.001 for all}. A significant disparity in the levels of LMR and albumin-LMR product was detected between the non-LN and LN, with statistical significance ( Z=-3.44, P=0.001 and Z=-7.06, P<0.001). Correlation analysis indicated that LMR negatively correlated with SLEDAI( r=-0.31), urea( r=-0.29), creatinine ( r=-0.28) and 24-hour urinary protein level ( r=-0.27), all P<0.001, with no significant correlation to complement C3 or C4. Albumin-LMR product showed stronger negative correlations with SLEDAI ( r=-0.44), urea ( r=-0.40), creatinine ( r=-0.37), and 24-hour urinary protein ( r=-0.55), all P<0.001, and a positive correlation with complement C3 ( r=0.18, P=0.004). The areas under the ROC curves for LMR and LMR combined with complement C3 were 0.749 and 0.795, respectively, while for albumin-LMR product and its combination with complement C3, they were 0.809 and 0.833, indicating superior diagnostic efficacy for the modified albumin-LMR product. Conclusion:LMR and albumin-LMR product levels are significantly associated with SLE disease activity and may serve as potential biomarkers for assessing SLE activity and the degree of lupus nephritis.

Objective:To investigate the effect of PIK3CA mutations on the tumor immune microenvironment in Luminal breast cancer and evaluate the potential of Alpelisib-loaded pH-responsive polymer micelles in modulating the tumor immune microenvironment.Methods:PIK3CA mutations in breast cancer were analyzed using bioinformatics tools.A mouse xenograft model of Luminal breast cancer harboring a PIK3CA mutation was established,and alterations in the tumor immune microenvironment were examined using mass cytometry(CyTOF).During the period from August 2004 to December 2008 in Tianjin Medical University Cancer Hospital,tissue biopsies of 62 Luminal breast cancer patients in the BRCA cohort were collected Study the relationship between PIK3CA mutations and tumor immune microenvironment at the organizational level.Alpelisib-loaded polymer micelles(Alpelisib@MSPM)were synthesized,characterized,and evaluated for thera-peutic efficacy in Luminal breast cancer with PIK3CA mutations.Results:PIK3CA is one of the most frequently mutated genes in breast can-cer,with the highest prevalence in Luminal subtypes.CyTOF analysis demonstrated that PIK3CA mutations contribute to a tumor immun-osuppressive microenvironment in xenografts.Multiplex fluorescence immunohistochemistry revealed that PIK3CA-mutated tumors exhib-ited more infiltration of myeloid-derived suppressor cells(MDSCs)and less infiltration of CD8? T cells.The synthesized Alpelisib-loaded pH-re-sponsive polymer micelles had an average size of approximately 127 nm.Treatment with Alpelisib and Alpelisib@MSPM reduced tumor growth in mice with PIK3CA-mutated Luminal breast cancer.Notably,the proportion of MDSCs decreased,whereas CD8? T cell infiltration in-creased significantly,with the more pronounced effect observed in the Alpelisib@MSPM treatment group.Conclusions:PIK3CA mutations drive the formation of a tumor immunosuppressive microenvironment in Luminal breast cancer.Targeted Alpelisib delivery via pH-respons-ive polymer micelles significantly enhances therapeutic efficacy in PIK3CA-mutated breast cancer.

Objective To introduce the application scene,operating steps and preliminary clinical effect of tibial bone mass preservation technique in medial unicompartmental knee arthroplasty(MUKA).Methods A total of 15 patients with antero-medial knee osteoarthritis(AMOA)treated in this hospital from May 2022 to May 2023 were selected as the study subjects.The tibial bone mass preservation technique was a-dopted to complete MUKA(fixed platform prosthesis).The operating time,intraoperative bleeding volume,hospitalization duration and operation complications were recorded.The VAS score before operation and in last follow up,range of motion(ROM)of knee joint,Knee Society Score(KSS),hip and knee stomping angle(HKA)of lower extremity in the operation side and image results were recorded to evaluate the clinical effect.Results The operations in 15 cases were successfully completed.The average operation time was(82.73±9.97)min,mean intraoperative bleeding volume was(21.00±9.49)mL and average hospital stay was(4.9±1.4)d.There was no intraoperative nerve,vascular and medial collateral ligament injury,no iatro-genic fracture,and no postoperative surgical site infection.All patients were followed up for average(5.87±2.77)months.The VAS score of knee joint,ROM,KSS and HKA angle of lower limb in the operated side were significantly improved compared with before operation(P<0.05).There was no prosthesis loosening,displacement or fragmentation,and no obvious degeneration aggravation of the lateral compartment of the knee joint.Conclusion The tibial bone mass preservation technique is a simple,effective and reliable method to deal with the slightly tight flexion space after tibial osteotomy during MUKA,and the postoperative clinical efficacy and imaging results are excellent.