ObjectiveTo investigate the imaging features of calcium salt deposition and serological markers in patients with alveolar echinococcosis through a retrospective analysis， as well as independent risk factors for the degree of calcium salt deposition in lesions， and to provide a basis for assessing disease process. MethodsA retrospective analysis was performed for the imaging and clinical data of 107 patients with alveolar echinococcosis who were admitted to The First Affiliated Hospital of Shihezi University from December 2023 to June 2025， and according to the volume of calcium salt deposition， they were divided into non-deposition group with 16 patients， mild deposition group with 52 patients， moderate deposition group with 16 patients， and severe deposition group with 23 patients. A one-way analysis of variance or the Kruskal-Wallis H test was used for comparison of continuous data between groups， and the χ² test or Fisher’s exact test was used for comparison of categorical data between groups. The four groups were further combined into the low deposition group （no/mild deposition） and the high deposition group （moderate/severe deposition）. A binary logistic regression analysis was used to investigate the independent influencing factors for calcium salt deposition， and a predictive model was established. The receiver operating characteristic （ROC） curve was used to assess the predictive performance of the model， and the Bootstrap method was used for internal validation. ResultsThere were significant differences between the four groups in sex distribution， involvement of other sites， white blood cell count， lymphocyte percentage， fibrinogen， uric acid， sodium ion， chloride ion， and calcium ion （all P<0.05）. The univariate analysis showed that there were significant differences between the four groups in sex， involvement of other sites， white blood cell count， lymphocyte percentage， fibrinogen， alanine aminotransferase， albumin， creatinine， uric acid， sodium ion， chloride ion， and calcium ion （all P<0.1）. The multi-collinearity diagnosis showed that the VIF values for all continuous variables ranged from 1.104 to 1.760， suggesting that collinearity did not affect modeling. An ordinal logistic regression model was established based on sex， involvement of other sites， calcium ion， lymphocyte percentage， and uric acid. The multivariate analysis showed that lymphocyte percentage （odds ratio ［OR］=1.106， 95% confidence interval ［CI］： 1.041 — 1.174， P=0.001） and blood calcium level （OR=0.005， 95%CI： 0.000 —0.230， P=0.007） were independent influencing factors for the degree of calcium salt deposition. The regression equation was established as Logit（P）=8.231 + 0.100 × lymphocyte percentage -5.344 × calcium ion. The ROC curve analysis showed that the model had an area under the ROC curve of 0.716， with a Youden index of 0.353， a sensitivity of 1.000， and a specificity of 0.353. The Hosmer-Lemeshow test showed that the model had poor calibration （χ²=20.688， P=0.008）. The Bootstrap method with 1000 repeated samples showed that the estimated values of lymphocyte percentage （OR=1.106， 95%CI： 1.049 — 1.186， P=0.002） and calcium ion （OR=0.005， 95%CI： 0.000 — 0.214， P=0.010） were consistent with the original model， and the confidence intervals did not include 1， which further supported the reliability of the model. ConclusionBoth lymphocyte percentage and blood calcium level are independent influencing factors for calcium salt deposition in alveolar echinococcosis， and the degree of calcium salt deposition in alveolar echinococcosis lesions increases with the reduction in blood calcium level and the increase in lymphocyte percentage.

Objective To explore the correlation between the expression level of serum fibrinogen-like protein 1(FGL1)and the indexes of metabolism and renal function in patients with diabetic nephropathy(DN)and diabetes mellitus(DM),and provide reference for clinical diagnosis and treatment.Methods From January 2017 to April 2023,30 patients with DM and treated in Jiangsu Province Hospital of Chinese Medicine were selected as the DM group,68 patients with DN were selected as the DN group,and 36 healthy subjects were selected as the control group.The DN group was further divided into the early DN(DN-E)group(n=38)and the late DN(DN-A)group(n=30)according to whether there was a large amount of proteinuria and the severity.Clinical data such as serum albumin(ALB),estimated glomerular filtration rate(eGFR)and albumin-to-creatinine ratio(ACR)were collected.Serum FGL1 level was detected by enzyme-linked immunosorbent assay(ELISA).Pearson linear correlation was used for correlation,the diagnostic value was analyzed by ROC curve.Results Compared with the control group,the levels of ACR,FGL1 in patients with DM group increased,the levels of eGFR decreased,and the differences were statistically significant(t=5.686,4.336,-4.683,all P<0.05).Compated with the DM group,the levels of ACR,FGL1 in patients with DN-E group was increased,and the level of eGFR was decreased,and the differences were statistically significant(t=5.275,3.454,-4.969,all P<0.05).Compared with the DN-E group,the levels of ACR,FGL1 in the DN-A group were increased,the levels of eGFR were decreased,and the differences were statistically significant(t=7.881,7.051,-5.596,all P<0.05).Serum FGL1 level was negatively correlated with ALB and eGFR(r=-0.638,-0.547,all P<0.05),and positively correlated with ACR(r=0.691,P<0.05).The AUC(95%CI),specificity and sensitivity of serum FGL1 level in the diagnosis of DN were 0.947(0.908～0.987),100%and 82.4%,respectively.Conclusion The level of serum FGL1 in DN and DM patients is high,and the level of serum FGL1 is closely related to the common metabolic indexes such as ALB,eGFR and ACR in the diagnosis of DN,which may have certain clinical diagnostic value.

Objective:To compare the efficacy of body posture combined with pharmacotherapy and pharmacotherapy alone in the treatment of chronic subdural hematoma(CSDH).Methods:Firstly, retrospective case series study was conducted. Thirty cases of CSDH that had received body posture combined with pharmacotherapy at Department of Neurosurgery, Huashan Hospital Affiliated to Fudan University from December 2016 to October 2020 were studied retrospectively. Twenty-seven patients were male, and 3 patients were female. The age of patients ( M(IQR)) was 66(16) years (range:28 to 84). Nineteen patients had unilateral hematoma, and 11 patients had bilateral hematoma. All patients received pharmacotherapy and body posture therapy that was to raise their lower limbs 20 to 30 cm with leg lift pad and get abdominal compressed with customized abdominal belt in supine position. Patients were required to maintain the body posture as much as possible, with the maximum to 16 to 18 hours per day. Patients with unilateral hematoma should tilt the head to the affected side and avoid tilting it to the opposite side. For patients with bilateral hematoma, there was no need for head lateralization. Patient were treated with oral dexamethasone and atorvastatin simultaneously. The preliminary efficacy of body posture combined with pharmacotherapy was determined by hematoma improvement rate which was analyzed by Clopper-Pearson method. Then, the multi-center, prospective, randomized controlled trial had carried out in 9 medical centers from August 2020 to November 2021. The stratified block randomization method was adopted. Patients were randomized in a ratio of 1∶1 to either receive pharmacotherapy alone(the control group) or body posture combined with pharmacotherapy(the experiment group) for 3 months and followed up for 6 months. Effective treatment was defined as complete absorption of hematoma, or the hematoma volume decreased by more than 10 ml and Markwalder grading scale score had improved by more than 1 point compared to the baseline. The efficacy rate and surgery conversion rate at 3 months and recurrence at 6 months were observed. Comparison between groups was performed with paired sample t test, Mann-Whitney U test, χ2 test, corrected χ2 test, or Fisher exact probability method. Logistic regression was used to compare the effective rate and operation rate between the two groups. Results:In the respective study, 30 patients completed follow-up 13 to 353 days after treatment. At the last follow-up, the incidence of almost complete absorption or significantly absorption of hematoma (hematoma volume was significantly reduced accompanied by symptom improvement) was 93.3%. The 95% CI for the incidence that analyzed by the Clopper-Pearson method was 77.9% to 99.2%. One hundred and six patients were enrolled in the multicenter study. Fifty-five patients underwent body posture combined with pharmacotherapy. The age was 74(17) years (range:26 to 92). Thirty-nine patients were males and 16 were females. Fifty-one patients underwent pharmacotherapy alone. The age was 69(12) years (range:48 to 84). Thirty-seven patients were males and 14 were females. The length of body posture recorded in diary card was (15.7±2.3) hours(range:7.6 to 19.3 hours). The efficacy rate in the body posture combined with pharmacotherapy group and pharmacotherapy alone group were 83.6% (46/55) and 56.9% (29/51), respectively at 3 months. The result of the logistic regression analysis showed that the efficacy of body posture combined with pharmacotherapy group was better than that of pharmacotherapy alone group ( OR=3.88,95% CI:1.57 to 9.58, P=0.003). Surgery rate in the body posture combined with pharmacotherapy group and pharmacotherapy alone group were 5.5% (3/55) and 21.6% (11/51) respectively. The result of Logistic regression showed that the pharmacotherapy alone group was more likely to be converted to surgery ( OR=0.21,95% CI:0.05 to 0.80, P=0.023). At the 6 months, no recurrence of cases was found in the body posture combined with pharmacotherapy group. However, the recurrence rate of pharmacotherapy alone group was 6.3% (3/48), there was no significant difference between the two groups ( P>0.05). Conclusion:The effect of body posture combined with pharmacotherapy for chronic subdural hematoma is better than that of pharmacotherapy alone.

Human herpesvirus-6B (HHV-6B) reactivation is a significant contributor to nonrelapse mortality following allogeneic hematopoietic stem cell transplantation (allo-HSCT). This retrospective analysis describes three cases of HHV-6B reactivation following allo-HSCT, all of which achieved viral clearance with maribavir treatment following failure or intolerance to first-line antiviral therapy with foscarnet sodium. One patient diagnosed with HHV-6B encephalitis recovered without neurological sequelae. No adverse drug reactions to maribavir were observed. These findings provide preliminary evidence that maribavir may serve as an effective and safe salvage therapy for HHV-6B reactivation in patients receiving allo-HSCT.

Objective:To investigate therapeutic effect and mechanism of sanguinarine on postherpetic neuralgia(PHN)rats by modulating C-X-C chemokine ligand 12(CXCL12)/C-X-C chemokine receptor 4(CXCR4)signaling pathway.Methods:SD rats were randomly grouped into control group,model group,low-dose(50 mg/kg)sanguinarine group,high-dose(100 mg/kg)sanguina-rine group,NUCC-390(CXCL12/CXCR4 signal activator,2.2 mg/kg)group,high-dose(100 mg/kg)sanguinarine+NUCC-390(2.2 mg/kg)group,with 10 rats in each group.Rats in model group and drug-treated groups were injected with resin toxin(RTX)by intraperitoneal injection to induce PHN model,rats in control group were intraperitoneally injected with an equal dose of normal saline containing 10%Tween 80 and 10%ethanol.After treatment of sanguinarine and NUCC-390,symptoms of long-term spontaneous pain,mechanical hyperalgesia and thermal hyperalgesia were detected,number of spontaneous paw withdrawal reflexes,paw with-drawal threshold to mechanical stimulation(PWMT),and response latency to thermal stimulation(PWTL)were compared;spinal cord nerve cell apoptosis was detected by TUNEL staining;ELISA was used to detect levels of inflammatory factors TNF-α,IL-1β,cyclooxygenase-2(COX-2)in rat spinal cord tissue and serum;Western blot was used to detect expressions of CXCL12/CXCR4 path-way-related proteins in spinal cord tissues of rats in each group.Results:Compared with control group,PWMT of model group was obviously decreased(P<0.05),number of spontaneous foot withdrawal reflexes,PWTL,spinal nerve cell apoptosis index,levels of TNF-α,IL-1β,COX-2 in spinal cord tissue and serum,and protein expressions of CXCL12 and CXCR4 in spinal cord tissue were obviously increased(P<0.05).Compared with model group,PWMT of rats in low-dose sanguinarine group and high-dose sanguinarine group was increased(P<0.05),number of spontaneous foot withdrawal reflexes,PWTL,spinal nerve cell apoptosis index,levels of TNF-α,IL-1β,COX-2 in spinal cord tissue and serum,and protein expressions of CXCL12 and CXCR4 in spinal cord tissue were all decreased(P<0.05);PWMT of rats in NUCC-390 group was decreased(P<0.05),number of spontaneous foot withdrawal reflex,PWTL,spinal nerve cell apoptosis index,levels of TNF-α,IL-1β,COX-2 in spinal cord tissue and serum,and protein expressions of CXCL12 and CXCR4 in spinal cord tissue were increased(P<0.05).Compared with high-dose sanguinarine group,PWMT of rats in high-dose sanguinarine+NUCC-390 group was decreased(P<0.05),number of spontaneous foot withdrawal reflex,PWTL,spinal nerve cell apoptosis index,levels of TNF-α,IL-1β,COX-2 in spinal cord tissue and serum,and protein expressions of CXCL12 and CXCR4 in spinal cord tissue were increased(P<0.05).Conclusion:Sanguinarine can reduce expression of inflammatory factors by down-regulating CXCL12/CXCR4 signaling pathway,thereby preventing occurrence of inflammatory response in PHN rats,inhibiting apoptosis of spinal nerve cells,and finally reducing long-term spontaneous pain,mechanical allodynia and thermal hypoalgesia in rats.

With the advancement of education,teaching methods have been continuously improved and optimized to en-hance students'learning experiences.In teaching the course of pathophysiology,a core discipline for medical students,integra-tion of Case-Based Learning(CBL)with the flipped classroom model can serve as a powerful pedagogical tool by stimulating students'interest,promoting collaborative learning,enhancing teacher-student interaction,and fostering a more active and en-gaging classroom environment.It also equips students with the confidence to better address real-world medical scenarios.This pa-per examines the application effect of the integrated teaching method on the teaching of pathophysiology and evaluates its pedagog-ical effectiveness.

BACKGROUND:Polycaprolactone has been widely used in bone tissue engineering due to its excellent processing and degradation performance,but its poor hydrophilicity and mechanical strength cannot provide a good growth environment for osteoblasts.OBJECTIVE:To prepare polycaprolactone/nanodiamond-phospholipid composite materials,evaluate its biocompatibility and in vitro ability to promote bone differentiation.METHODS:Nanodiamond was modified using phospholipids,and polycaprolactone was used as the raw material.Polycaprolactone/nanodiamond-phospholipid composite materials with different mass ratios(0%,2.5%,7.5%,and 10%)were prepared by solution casting method.Polycaprolactone/nanodiamonds were used for comparison.The surface morphology,elemental composition,mechanical properties,and water contact angle of each group of materials were observed to select composite materials with better physical and chemical properties.MC3T3-E1 cells were inoculated onto pure polycaprolactone membrane,polycaprolactone/7.5%nanodiamond-phospholipid membrane,and polycaprolactone/7.5%polycaprolactone/nanodiamond membrane,respectively,to detect cell proliferation,adhesion,and osteogenic differentiation ability.RESULTS AND CONCLUSION:(1)The successful preparation of the polycaprolactone/nanodiamond-phospholipid composite material was confirmed by scanning electron microscopy and surface element composition.Compared with pure polycaprolactone membrane,the tensile strength of the polycaprolactone/7.5%nanodiamond-phospholipids membrane increased by 86.06%,the elastic modulus increased by 54.76%,and the water contact angle decreased to 70.0°,showing good physical and chemical properties.(2)The CCK-8 assay results showed that compared with pure polycaprolactone membrane and polycaprolactone/7.5%nanodiamond membrane,polycaprolactone/7.5%nanodiamond-phospholipid membrane could promote the proliferation of MC3T3-E1 cells.Phalloidine staining exhibited that compared with the polycaprolactone/7.5%nanodiamond membrane,the MC3T3-E1 cells on pure polycaprolactone and polycaprolactone/7.5%nanodiamond-phospholipid membrane were mostly rhomboid or spindle-shaped fibers,and the cells were more closely connected.Alkaline phosphatase staining showed that MC3T3-E1 cells on polycaprolactone/7.5%nanodiamond-phospholipid membrane exhibited stronger osteogenic differentiation ability compared with pure polycaprolactone membrane and polycaprolactone/7.5%nanodiamond membrane.(3)The results indicate that the polycaprolactone/nanodiamond-phospholipid composite material has good mechanical properties,hydrophilicity,biocompatibility,and the ability to promote osteogenic differentiation in vitro.

Surface plasmon resonance （SPR） sensor is an optical detection technique enables real-time and dynamic monitoring of biological samples. SPR-based biosensors have remarkable characteristics such as label-free detection and high sensitivity, making them important tools for studying molecular interactions. The recognition element, which plays a critical role in SPR sensors,which could specifically identify and capture of target analytes, closely influencing the selectivity performance of the sensor. The progress on SPR sensors in pharmaceutical research were reviewed, which focused on the application of recognition elements such as antibodies, aptamers, molecularly imprinted polymers, and metal nanoparticles.

OBJECTIVE: To review the research progress and challenges of poly (L-lactic acid) (PLLA) membrane in preventing tendon adhesion. METHODS: The relevant literature at home and abroad in recent years was extensively searched, covering the mechanism of tendon adhesion formation, the adaptation challenge and balancing strategy of PLLA, the physicochemical modification of PLLA anti-adhesion membrane and its application in tendon anti-adhesion. In this paper, the research progress and modification strategies of PLLA membranes were systematically reviewed from the three dimensions of tissue adaptation, mechanical adaptation, and degradation adaptation. RESULTS: The three-dimensional adaptation of PLLA membrane is optimized by combining materials (such as hydroxyapatite, polycaprolactone), structural design (multilayer/gradient membrane), and drug loading (anti-inflammatory drug). The balance between anti-adhesion and pro-healing is achieved, the mechanical adaptation significantly improve, and degradation is achieved (targeting the degradation cycle to 2-4 weeks to cover the tendon repair period). CONCLUSION In the future, it is necessary to identify the optimal balance point of three-dimensional fitness, unify the evaluation criteria and solve the degradation side effects through the co-design of physicochemical modification and drug loading system to break through the bottleneck of clinical translation.
Tissue Adhesions/prevention & control* ; Polyesters/chemistry* ; Humans ; Biocompatible Materials/chemistry* ; Tendons/surgery* ; Membranes, Artificial ; Tendon Injuries/surgery* ; Wound Healing ; Animals ; Durapatite/chemistry*