Objective: To optimize the preparation technique for bifonazole suppositories and evaluate the quality.Methods: The appearance, hardness and melting time of suppositories were used as the evaluation indices to optimize the process conditions, such as suppository matrix, drug particle size, injection molding temperature and stirring conditions, etc.The content of bifonazole was determined by HPLC.Results: The best formula was as follows: the matrix was multiplicated monofatty glyceride-36, bifonazole was sieved by 100 mesh sieve and the best molding temperature was 45 ℃.The quality of the prepared suppositories with the above conditions was controllable in the appearance, melting time limit, hardness and content determination, etc.Conclusion: The formula of bifonazole suppositories is reasonable, the preparation process is feasible, and the quality control methods are reliable.

This study examined the effect of self-microemulsiflying drug delivery system (SMEDDS) containing Cremophor RH40 or Tween 80 at various dilutions on cytochrome P450 3A (CYP3A) enzymes in rat hepatocytes, with midazolam serving as a CYP3A substrate. The particle size and zeta potential of microemulsions were evaluated upon dilution with aqueous medium. In vitro release was detected by a dialysis method in reverse. The effects of SMEDDS at different dilutions and surfactants at different concentrations on the metabolism of MDZ were investigated in murine hepatocytes. The cytotoxicity of SMEDDS at different dilutions was measured by LDH release and MTT technique. The effects of SMEDDS on the CYP3A enzymes activity were determined by Western blotting. Our results showed that dilution had less effect on the particle size and zeta potential in the range from 1:25 to 1:500. The MDZ was completely released in 10 h. A significant decrease in the formation of 1'-OH-MDZ in rat hepatocytes was observed after treatment with both SMEDDS at dilutions ranging from 1:50 to 1:250 and Cremophor RH 40 or Tween 80 at concentrations ranging from 0.1% to 1% (w/v), with no cytotoxicity observed. A significant decrease in CYP3A protein expression was observed in cells by Western blotting in the presence of either Cremophor RH40 or Tween 80-based SMEDDS at the dilutions ranging from 1:50 to 1:250. This study suggested that the excipient inhibitor-based formulation is a potential protective platform for decreasing metabolism of sensitive drugs that are CYP3A substrates.

AIM: To investigate the role of CD134 (OX40) and NF-?B in the pathogenesis of lupus nephritis (LN). METHODS: Renal in situ CD134 and NF-?B expression were examined in 40 biopsy specimens from LN patients by immunohistochemistry and microwave-based immunohistochemistry, respectively. The relationship between expression of CD134 and NF-?B was analyzed. RESULTS: The expression of glomerular and tubular CD134 and NF-?B in LN were higher than that in normal control, especially in class Ⅳ LN, where there was intense staining of endothelial cell, distal tubules, and interstitial mononuclear cell. The CD134 expression of glomerular and tubular was closely related to NF-?B expression, respectively ( r=0.5542,P

Objective To observe the effect of treating Diabetic Peripheral Neuropathy with Acupoint Injection. Methods 65 patient with DPN were randomly recruited into a control group and a treatment group after adjusting stage. The control group was treated with acupuncture, while the treatment group was treated with the Safflower inoculation fluid acupuncture point injects. Nerve function parameter (MDNS、 NCV) and clinical symptoms were observed after 3 therapeutic courses. Results Nerve function parameter (MDNS、 NCV) and clinical symptoms in the treatment group were apparently improved after treatment (P<0.05) . Conclusion Acupuncture point injected with Safflower inoculation fluid may improve clinical symptoms and nerve functions of DPN patients.

Objective: To observe the clinical therapeutic effect of Tang Shen Ning(TSN,a prescription of traditional Chinese medicine)for curing the early stage of diabetic nephropathy(DN).Methods: Adopting random and double-blind controlled trial methods,several indexes were observed in terms of uric micro-amount albumin excretion rate,creatinine clearance,hemorheology and platelet function et al.Results: TSN could significantly reduce urinary albumin,glomerulus's hyper-filtration,improve blood stream transform and inhibit platelet aggregation.Conclusion: TSN could protect renal functions during the early stage of DN.

This study examined the effect of self-microemulsiflying drug delivery system (SMEDDS) containing Cremophor RH40 or Tween 80 at various dilutions on cytochrome P450 3A (CYP3A) enzymes in rat hepatocytes, with midazolam serving as a CYP3A substrate. The particle size and zeta potential of microemulsions were evaluated upon dilution with aqueous medium. In vitro release was detected by a dialysis method in reverse. The effects of SMEDDS at different dilutions and surfactants at different concentrations on the metabolism of MDZ were investigated in murine hepatocytes. The cytotoxicity of SMEDDS at different dilutions was measured by LDH release and MTT technique. The effects of SMEDDS on the CYP3A enzymes activity were determined by Western blotting. Our results showed that dilution had less effect on the particle size and zeta potential in the range from 1:25 to 1:500. The MDZ was completely released in 10 h. A significant decrease in the formation of 1'-OH-MDZ in rat hepatocytes was observed after treatment with both SMEDDS at dilutions ranging from 1:50 to 1:250 and Cremophor RH 40 or Tween 80 at concentrations ranging from 0.1% to 1% (w/v), with no cytotoxicity observed. A significant decrease in CYP3A protein expression was observed in cells by Western blotting in the presence of either Cremophor RH40 or Tween 80-based SMEDDS at the dilutions ranging from 1:50 to 1:250. This study suggested that the excipient inhibitor-based formulation is a potential protective platform for decreasing metabolism of sensitive drugs that are CYP3A substrates.

Objective:To explore the relationship between periprosthetic infection and preoperative serum levels of human β-defensin 3 (HBd-3) and interleukin-12 (IL-12) in patients with femoral neck fracture after hip replacement surgery.Methods:A prospective study was conducted to 268 patients with femoral neck fracture who underwent hip replacement surgery at Chengde Central Hospital from April 2020 to April 2022. They were divided into an infected group and an uninfected group based on whether they had periprosthetic infection within 2 weeks after surgery. The baseline data and preoperative laboratory indicators of the two groups were compared, and the relationship between preoperative serum HBd-3 and IL-12 levels and postoperative periprosthetic infection in patients was mainly analyzed.Results:Seventeen out of 268 patients with femoral neck fractures experienced periprosthetic infections after hip replacement surgery, with an infection rate of 6.34%(17/268). The body mass index, operation time, postoperative drainage time and IL-12 in the infected group were higher than those in the uninfected group: (23.75 ± 2.18) kg/m 2 vs. (21.86 ± 1.95) kg/m 2, (124.82 ± 15.93) min vs. (116.92 ± 14.75) min, (57.41±7.81) min vs. (49.65 ± 5.73) min, (64.82 ± 11.59) ng/L vs. (54.23 ± 9.55) ng/L, the preoperative albumin and HBd-3 were lower than those in the uninfected group: (32.56±4.63) g/L vs. (37.25 ± 5.81) g/L, (38.03 ± 6.74) μg/L vs. (46.84 ± 8.93) μg/L, and the differences were statistically significant ( P<0.05). The results of Logistic regression analysis showed that high body mass index, long surgical and postoperative drainage time, and high preoperative IL-12 levels were risk factors for periprosthetic infection after hip replacement surgery in patients with femoral neck fractures ( OR>1, P<0.05), while preoperative serum albumin and HBd-3 levels were protective factors ( OR<1, P<0.05). Receiver operating characteristic curve results showed that preoperative serum HBd-3 and IL-12 alone and in combination predict AUC>0.70 for periprosthetic infection in patients with femoral neck fracture after hip replacement surgery, which had certain predictive value. The restricted cubic spline method combining spline function and Logistic regression was used for analysis, and the results showed a linear dose-response relationship between the levels of HBd-3 and IL-12 and the strength of the association with periprosthetic infection after hip replacement surgery in patients with femoral neck fracture ( P<0.05). Conclusions:Preoperative serum HBd-3 and IL-12 levels are associated with periprosthetic infection in patients with femoral neck fracture after hip replacement surgery, and can serve as predictive indicators for infection occurrence.

Objective To summarize the management challenges faced by multi-campus hospitals both domestically and internationally,to delineate the experiences in medical administration across multiple campuses,and to propose the"Zhong-zhong"multi-campus medical management pattern based on the practices of Sun Yat-sen University Cancer Center,aiming to pro-vide reference and evidence for domestic peers in the field.Methods This study uses the methods of literature research and case study analysis,and summarizes and condenses the experience of medical management in multi-campus and provides policy sug-gestions through key person interviews and expert consultation.Results SYSUCC carries out multi-campus medical management through six major measures,namely,the organizational system combining vertical and territorial management,the layout of disci-plinary clusters and specialties,multi-channel flow attraction measures,the dynamic adjustment of medical resources,the homog-enization of medical quality,and the high-effective information system.It achieves the high-quality development goals with differ-ential development of various specialties,improved resource utilization efficiency,homogeneous and incremental medical serv-ices,smooth operation of information system,and steady and orderly development of new techniques.Conclusion Domestic public specialized hospitals can achieve homogeneous management and high-quality development across multiple campuses through streamlined organizational structures to enhance management efficiency,optimizing the layout of specialized departments to pro-mote coordinated development,strict control of standards to ensure medical quality,using dynamic adjustments to guide orderly competition among specialized departments,and leveraging information systems to support homogeneous development across multi-ple campuses.

OBJECTIVE To prepare curcumin /berberine co -loaded self -microemulsion drug delivery system （CUR/BER- SMEDDS）and evaluate its physicochemical properties and in vitro anti-tumor effects . METHODS Using CUR and BER as model drug，based on the screening of the type of oil phase ，emulsifier，co emulsifier and their mass ratio ，the formulation of CUR/BER - SMEDDS were optimized by central composite design -response surface methodology ，taking particle size and drug loading as evaluation parameters ，with the mass percentage of oil phase and the mass ratio of emulsifier to co emulsifier as factors ，and verification test was conducted . CUR/BER-SMEDDS prepared by optimized formulation were evaluated in terms of physicochemical properties，in vitro dissolution and in vitro anti-tumor effects . RESULTS The optimized formulation of CUR/BER -SMEDDS included that the oil phase was medium chain triglyceride （30.97%），the emulsifier was polyoxyl 40 hydrogenated castor oil （46.77%），the co emulsifier was polyethylene glycol 400（22.26%），and the mass ratio of emulsifier to co emulsifier was 2.10∶1. The validation experiments showed that mean particle size of CUR/BER -SMEDDS was（58.90±5.41）nm，the average drug loading was（94.94±3.87）mg/g，and the relative deviations from the predicted values were －2.90% and －0.14%，respectively. The CUR/ BER-SMEDDS prepared by optimal formulation was light yellow ，clear and transparent liquid after emulsified with water ，and its particles were spherical . The results of dissolution test in vitro showed that after SMEDDS was made ，the cumulative dissolution of CUR in artificial intestinal fluid and artificial gastric fluid and that of BER in artificial intestinal fluid were significantly higher than those of its raw material . Results of in vitro anti-tumor experiment showed that IC 50 values of CUR/BER -SMEDDS for PC -3 cells and DU -145 cells were （17.38±2.84）and（20.89±1.26）μmol/L，which were all lower than those of CUR and EBR significantly （P＜0.05）.CONCLUSIONS The optimized prepar ation process of CUR/BER -SMEDDS is stable and feasible . The drug release of CUR/BER-SMEDDS is more complete than that of single drug，and has stronger anti -prostate cancer effect in vitro .