Objective:To study the residual stress distribution through the thickness of bilayered dental ceramic subjected to thermal stress, in order to improve the restoration. Methods: The finite element model of bilayered dental ceramic was set up based on International Organization for Standardization(ISO) 96936:1999. The residual stresses were calculated in viscoelastic and elastic phases during cooling of dental ceramic to analyze the residual stress distribution. Results: The deformation of core was greater than the veneer ceramics during the cooling period of dental ceramic. The residual stress increased with the decreasing of the temperature approaching the interface of core and veneer ceramics. But it decreased with the increasing of the thickness of veneer ceramics.Conclusion: Thermal compatibility of core and veneer ceramics is very important to the residual stress distribution in the bilayered dental ceramic, which may benefit to All-ceramic restorations. The viscoelastic behavior of ceramic should be taken into account in the thermal compatibility.

Aim Toconstructthreeplasmidsincluding Smad3 WT,Smad3 EPSM and Smad3 3S-A stable transfection in HepG2 cell lines to investigate phospho-domains of Snad3(pSmad3C or pSmad3L),their pro-tein expression and roles in HepG2 cell proliferation, apoptosisandcellcycle.Methods Threeplasmidsin-cluding Smad3 WT (Carry the wild Smad3 gene ), Smad3 EPSM(Carry the mutated phosphorylation site in linker region of Smad3 gene)and Smad3 3S-A(Car-ry the mutated phosphorylation site in C-terminal of Smad3 gene)were respectively transfected into HepG2 cells by using a liposome transfection reagent.Verifi-cation of positive cells was done by screening with G418 via co-culture.Transfection efficiency was deter-mined by Western blot.Cell proliferation was induced by exogenous TGF-β1 in the respective stably transfect-ed HepG2 cell lines.Cell proliferation was monitored by MTT.Cell cycle and apoptosis were determined by flowcytometry(FCM).Results Therewaselevated protein expression of the respective phospho-domain sites in the stably transfected HepG2 cells for Smad3 WT(C-terminus and Linker),Smad3 EPSM(C-termi-nus)and Smad3 3S-A(Linker),which indicated suc-cessful stable transfection of HepG2 cell lines.The re-sults from MTT experiment showed that TGF-β1 could induce proliferation of HepG2 cells with or without the transfection of Smad3 WT,Smad3 EPSM and Smad3 3S-A plasmids,meanwhile transfected Smad3 EPSM plasmids could significantly inhibit proliferation of HepG2 cells induced by TGF-β1 , and transfected Smad3 3S-A plasmids accelerate proliferation of HepG2 cells induced by TGF-β1 .Cell cycle analysis showed that the G0/G1 phase of HepG2 cells with stable trans-fection of Smad3 EPSM plasmid increased compared with HepG2 cells with or without stable transfection of Smad3 WT plasmid,meanwhile the G2/M phase of HepG2 cells with stable transfection of Smad3 3 S-A plasmid increased.Compared with Smad3 WT trans-fected cells, apoptosis in Smad3 EPSM transfected cells was markedly increased,while that of Smad3 3S-Atransfectedcellsdecreased.Conclusions Thethree plasmids of Smad3 WT,Smad3 EPSM and Smad3 3S-A stably transfected HepG2 cell lines have been suc-cessively constructed.The construction of three plas-mids transfected HepG2 cell lines provides the research foundation for studying medical as well as possible reg-ulatory mechanism of pSmad3 C/pSmad3 L.

Objective:To establish the fingerprint analysis method for the root of Rosa laevigata Michx from different regions by UPLC. Methods:The column was ACQUITY UPLC? Phenyl(2.1 mm × 100 mm,1.7 μm). The mobile phase consisted of methanol-water with gradient elution. The flow rate was 0. 2 ml·min-1 , the detection wavelength was 210 nm, the column temperature was 30℃, and the injection volume was 3 μl. Results:The fingerprint consisted of 15 common peaks. The range of similarity for twelve bat-ches of the root of R. laevigata Michx was 0. 489-0. 942. And the reference fingerprint of the root of R. laevigata Michx was estab-lished by UPLC. Conclusion:The fingerprint method is simple and reproducible, which can provide basis for the quality control and the medicinal resources exploration.

Objective To observe the application value of enhanced recovery after surgery(ERAS)in perioperative nursing for patients undergoing percutaneous endoscopic interlaminar discec-tomy based on three-dimensional visualized virtual surgical system.Methods Eighty-six patients with lumbar spinal stenosis were randomly divided into experimental group(receiving perioperative nursing based on ERAS)and control group(receiving conventional perioperative nursing)using a random number table method,with 43 patients in each group.The postoperative recovery,pain intensity[Vis-ual Analogue Scale(VAS)score],lumbar function[Japanese Orthopaedic Association(JOA)sco-ring system for lumbar disorders],rehabilitation motivation[Pittsburgh Rehabilitation Participation Scale(PRPS)score],compliance[Adherence Rating Scale(ARS)score],quality of life[World Health Organization Quality of Life BREF(WHOQOL-BREF)score],complications,and satisfaction were compared between the two groups.Results The first ambulation time,first meal time,and hos-pital stay after surgery in the experimental group were shorter than those in the control group(P＜0.05).The total incidence of complications in the experimental group was 9.30％,which was lower than 27.91％in the control group(P＜0.05).Three days after surgery,the VAS score of the experimental group was(1.77±0.58),which was lower than(2.54±0.72)in the control group(P＜0.05).After intervention,the JOA scoring system for lumbar disorders,PRPS score,WHOQOL-BREF score,and satisfaction score in the experimental group were higher than those in the control group,while the ARS score was lower(P＜0.05).Conclusion The application of ERAS in perioperative nursing for patients undergoing percutaneous endoscopic interlaminar discectomy based on three-di-mensional visualized virtual surgical system can not only shorten the first ambulation time,first meal time,and hospital stay after surgery for patients with lumbar spinal stenosis,improve rehabilitation motivation and compliance,significantly relieve pain,but also promote the recovery of lumbar func-tion,reduce occurrence of complications,and effectively enhance quality of life and patients'satis-faction.

Objective To observe the application value of enhanced recovery after surgery(ERAS)in perioperative nursing for patients undergoing percutaneous endoscopic interlaminar discec-tomy based on three-dimensional visualized virtual surgical system.Methods Eighty-six patients with lumbar spinal stenosis were randomly divided into experimental group(receiving perioperative nursing based on ERAS)and control group(receiving conventional perioperative nursing)using a random number table method,with 43 patients in each group.The postoperative recovery,pain intensity[Vis-ual Analogue Scale(VAS)score],lumbar function[Japanese Orthopaedic Association(JOA)sco-ring system for lumbar disorders],rehabilitation motivation[Pittsburgh Rehabilitation Participation Scale(PRPS)score],compliance[Adherence Rating Scale(ARS)score],quality of life[World Health Organization Quality of Life BREF(WHOQOL-BREF)score],complications,and satisfaction were compared between the two groups.Results The first ambulation time,first meal time,and hos-pital stay after surgery in the experimental group were shorter than those in the control group(P＜0.05).The total incidence of complications in the experimental group was 9.30％,which was lower than 27.91％in the control group(P＜0.05).Three days after surgery,the VAS score of the experimental group was(1.77±0.58),which was lower than(2.54±0.72)in the control group(P＜0.05).After intervention,the JOA scoring system for lumbar disorders,PRPS score,WHOQOL-BREF score,and satisfaction score in the experimental group were higher than those in the control group,while the ARS score was lower(P＜0.05).Conclusion The application of ERAS in perioperative nursing for patients undergoing percutaneous endoscopic interlaminar discectomy based on three-di-mensional visualized virtual surgical system can not only shorten the first ambulation time,first meal time,and hospital stay after surgery for patients with lumbar spinal stenosis,improve rehabilitation motivation and compliance,significantly relieve pain,but also promote the recovery of lumbar func-tion,reduce occurrence of complications,and effectively enhance quality of life and patients'satis-faction.

Objective:To evaluate the static symmetry in patients with early facial paralysis after masseteric-to-facial nerve transfer combined with fascia lata graft.Methods:Clinical data of paralyzed patients who treated with masseteric-to-facial nerve transfer combined with fascia lata graft in Shanghai Jiao Tong University School of Medicine Affiliated Ninth People’s Hospital from January 2016 to December 2018 were retrospectively analyzed. Patients were divided into two groups according to the degree of preoperative oral commissure dropping: slight asymmetry (Scale Ⅱ, Group A) and severe asymmetry (Scale Ⅲ, Group B). Facial muscle contraction was evaluated by Terzis Facial Grading System to evaluate smile function, which was divided into Score Ⅰ, Ⅱ, Ⅲ, Ⅳ and Ⅴ. The higher the score, the better the facial muscle contraction and the better the dynamic symmetry during preoperatively and one year postoperatively. The static symmetry of oral commissure was evaluated by Symmetry Scale of Oral Commissure to evaluate symmetry at rest, which was divided into Scale Ⅰ, Ⅱ, Ⅲ and Ⅳ, the higher the scale, the worse the static symmetry. Face-gram software was adopted to measure bilateral vertical differences(D 1) or horizontal differences(D 2) in the oral commissure position of the patients with facial paralysis for evaluating the postoperative static symmetry objectively. Statistical analyses were performed with SPSS version 26.0. Numeration data were analyzed by chi-square test. Intragroup quantitative data was analyzed by paired t-test and intergroup quantitative data was analyzed by two-sample t-test. The significance level was set at 0.05. Results:A total of 58 patients were included, including 30 patients in group A [male 12, female 18, age (43.5 ±8.1) years], and 28 patients in group B[male 12, female 16, age (40.6 ±9.6) years]. There was no significant difference in sex, age at surgery, paralyzed side and denervation time between groups ( P>0.05). The patients were scored Ⅰ on Terzis’ smile functional evaluation scale preoperatively. The score of smile function in postoperative percentage in all patients was improved to Score Ⅲ (Group A, 9/30, 30.0%; Group B, 10/28, 35.7%) or Score Ⅳ (Group A, 21/30, 70.0%; Group B, 18/28, 64.3%), according to the Terzis Facial Grading System. There was no significant difference in the improvement of smile function between groups ( P>0.05). In Group A, 73.3% patients had postoperative improvement in static symmetry (Scale Ⅱ to Scale Ⅰ, 22/30) and 26.7% patients were still Scale Ⅱ according to Symmetry Scale of Oral Commissure to evaluate symmetry at rest. In Group B, 39.3% of patients achieved static symmetry effect (Scale Ⅲ to Scale Ⅰ, 11/28), 42.9% patients had postoperative improvement (Scale Ⅲ to Scale Ⅱ, 12/28) and 17.8%(5/28) of them were still Scale Ⅲ. The proportion of achieving static symmetry effect (Scale Ⅰ) in Group A was higher than that in Group B ( P<0.01). D 1 values of one-year postoperation were smaller than that of preoperation [Group A: (5.27 ±0.74) mm vs. (2.24 ±0.57) mm; Group B: (8.22 ±1.37) mm vs. (4.42 ±0.95) mm, P<0.01]. Similarly, D 2 values of one-year postoperation were smaller than that of preoperation [Group A: (6.11 ±1.18) mm vs. (2.98±1.13) mm; Group B: (8.84 ±2.16) mm vs. (5.24 ±1.85) mm, P<0.01]. There were significant differences between groups in preoperative comparison and one-year postoperative comparison( P<0.01). Conclusions:Masseteric-to-facial nerve transfer combined with fascia lata graft achieved dynamic and static symmetry in patients with different levels of asymmetry. The postoperative static symmetry effect at rest may be influenced by the different levels of oral commissure asymmetry preoperatively.

Objective:To evaluate the static symmetry in patients with early facial paralysis after masseteric-to-facial nerve transfer combined with fascia lata graft.Methods:Clinical data of paralyzed patients who treated with masseteric-to-facial nerve transfer combined with fascia lata graft in Shanghai Jiao Tong University School of Medicine Affiliated Ninth People’s Hospital from January 2016 to December 2018 were retrospectively analyzed. Patients were divided into two groups according to the degree of preoperative oral commissure dropping: slight asymmetry (Scale Ⅱ, Group A) and severe asymmetry (Scale Ⅲ, Group B). Facial muscle contraction was evaluated by Terzis Facial Grading System to evaluate smile function, which was divided into Score Ⅰ, Ⅱ, Ⅲ, Ⅳ and Ⅴ. The higher the score, the better the facial muscle contraction and the better the dynamic symmetry during preoperatively and one year postoperatively. The static symmetry of oral commissure was evaluated by Symmetry Scale of Oral Commissure to evaluate symmetry at rest, which was divided into Scale Ⅰ, Ⅱ, Ⅲ and Ⅳ, the higher the scale, the worse the static symmetry. Face-gram software was adopted to measure bilateral vertical differences(D 1) or horizontal differences(D 2) in the oral commissure position of the patients with facial paralysis for evaluating the postoperative static symmetry objectively. Statistical analyses were performed with SPSS version 26.0. Numeration data were analyzed by chi-square test. Intragroup quantitative data was analyzed by paired t-test and intergroup quantitative data was analyzed by two-sample t-test. The significance level was set at 0.05. Results:A total of 58 patients were included, including 30 patients in group A [male 12, female 18, age (43.5 ±8.1) years], and 28 patients in group B[male 12, female 16, age (40.6 ±9.6) years]. There was no significant difference in sex, age at surgery, paralyzed side and denervation time between groups ( P>0.05). The patients were scored Ⅰ on Terzis’ smile functional evaluation scale preoperatively. The score of smile function in postoperative percentage in all patients was improved to Score Ⅲ (Group A, 9/30, 30.0%; Group B, 10/28, 35.7%) or Score Ⅳ (Group A, 21/30, 70.0%; Group B, 18/28, 64.3%), according to the Terzis Facial Grading System. There was no significant difference in the improvement of smile function between groups ( P>0.05). In Group A, 73.3% patients had postoperative improvement in static symmetry (Scale Ⅱ to Scale Ⅰ, 22/30) and 26.7% patients were still Scale Ⅱ according to Symmetry Scale of Oral Commissure to evaluate symmetry at rest. In Group B, 39.3% of patients achieved static symmetry effect (Scale Ⅲ to Scale Ⅰ, 11/28), 42.9% patients had postoperative improvement (Scale Ⅲ to Scale Ⅱ, 12/28) and 17.8%(5/28) of them were still Scale Ⅲ. The proportion of achieving static symmetry effect (Scale Ⅰ) in Group A was higher than that in Group B ( P<0.01). D 1 values of one-year postoperation were smaller than that of preoperation [Group A: (5.27 ±0.74) mm vs. (2.24 ±0.57) mm; Group B: (8.22 ±1.37) mm vs. (4.42 ±0.95) mm, P<0.01]. Similarly, D 2 values of one-year postoperation were smaller than that of preoperation [Group A: (6.11 ±1.18) mm vs. (2.98±1.13) mm; Group B: (8.84 ±2.16) mm vs. (5.24 ±1.85) mm, P<0.01]. There were significant differences between groups in preoperative comparison and one-year postoperative comparison( P<0.01). Conclusions:Masseteric-to-facial nerve transfer combined with fascia lata graft achieved dynamic and static symmetry in patients with different levels of asymmetry. The postoperative static symmetry effect at rest may be influenced by the different levels of oral commissure asymmetry preoperatively.

As the main weapon of cellular immunity,CD4+ T cells play a vital role in controlling and eliminating infections,and are an important barrier for the body to resist infections.Respiratory tract infectious diseases caused by influenza virus infection have extremely high infectivity,morbidity and mortality.The infection mechanism is relatively complicated and has not been fully ex-plained.The exuberant immune response induced by the body after influenza virus infection is described as a"cytokine storm"which is related to pro-inflammatory cytokines and tissue damage,which may eventually lead to acute lung injury.Therefore,this article sum-marizes the current research progress,focusing on the mechanism of CD4+T cells in the cytokine storm induced by influenza virus in-fection and the impact of acute lung injury,providing relevant ideas and theoretical guidance for follow-up research,with a view to the disease caused by influenza virus bring new and effective methods of diagnosis and treatment.

Objective:To explore mechanism of Fasudil reducing Aβ1-42 induced BV2 cell injury based on NLRP3 inflamma-some.Methods:BV2 cells were divided into:normal control group,Aβ stimulation group,Aβ+Fasudil intervention group,Aβ+MCC950(NLRP3 inhibitor)intervention group.Cell morphology was observed under microscope.Cell activity was determined of by CCK8.NO release was measured by Griess.NLRP3,caspase 1 and IL-18 expressions were detected by immunofluorescence staining.NLRP3,ASC,caspase 1,IL-1β and IL-18 expressions were detected by Western blot.Results:Compared with normal control group,BV2 cells in Aβ stimulation group were activated and showed amoeba-like shape,cell activity was decreased,NO production was increased,NLRP3,ASC,caspase 1,IL-1β and IL-18 expressions were increased.Fasudil intervention and MCC950 intervention inhibited cell injury induced by Aβ1-42 in which BV2 cell morphology tended to be normal,cell activity was increased,while produc-tion of NO was reduced,and NLRP3,ASC,caspase 1,IL-1β and IL-18 expressions were down-regulated,there was no significant difference between Fasudil intervention group and MCC950 intervention group.Conclusion:Fasudil may alleviate Aβ1-42 induced BV2 cell injury and inflammatory reaction by inhibiting NLRP3 inflammasome activation.

Yinchenhao Tang has definite clinical efficacy. It has been inherited and documented since the ancestor of Shanghanlun in the Eastern Han dynasty and is a classical formulas for clearing away heat， promoting diuresis， and eliminating jaundice adopted by medical experts of successive generations. It has been included in the Catalogue of Ancient Classical Formulas （the Second Batch of Han Medicine） published by the National Administration of Traditional Chinese Medicine （TCM） in 2023. By means of bibliometrics， 801 pieces of ancient literature data related to Yinchenhao Tang were collected， and 36 pieces of effective data were selected， involving 36 ancient books of TCM. The origin， name， composition， efficacy， formula and meaning analysis， drug origin， dosage， preparation method and usage， indications， and modern clinical application of Yinchenhao Tang were analyzed. It was suggested that the modern dosage and application of Yinchenhao Tang should be as follows： The 82.8 g of Artemisiae Scopariae Herba， 12.6 g of Gardeniae Fructus， and 27.2 g of Rhei Radix et Rhizoma. The formulas was prepared by firstly adding 2 400 mL of water into Artemisiae Scopariae Herba and boiling it to about 1 200 mL， then adding Gardeniae Fructus and Rhei Radix et Rhizoma to boil it for 600 mL， and removing the residue. It could be orally taken for 200 mL each time in warm conditions， three times a day. Yinchenhao Tang has the effect of clearing away heat， promoting diuresis， and eliminating jaundice， and it mainly treats symptoms of hygropyretic jaundice. In the formulas， Yinchenhao Tang is the monarch drug， which is mainly to remove dampness and jaundice. Gardeniae Fructus is the ministerial drug， which is mainly responsible for clearing the triple energizer and facilitating urination. Rhei Radix et Rhizoma is an adjuvant， mainly responsible for clearing away heat and eliminating jaundice. The modern application of this formulas involves the hepatobiliary system， skin system， endocrine system， digestive system， etc.， and it has more advantages in treating jaundice， icteric hepatitis， and hepatitis B. In this study， the ancient literature related to Yinchenhao Tang was sorted out to determine its key information， so as to provide a scientific reference for clinical application of classic formulas and new drug development.