Two kinds of splint consisted of light-cured orselfcuring resin with nylon yarn were applied to fixthe loosed teeth caused by periodontitis. The re-sults showed that the light-cured resin with nylonyarn splint is much better than the self-cured resinwith nylon yarn splint (P

The aim of the study is to prepare flurbiprofen axetil nanoemulsion-in situ gel system (FBA/NE- ISG) and observe its ocular pharmacokinetics, rheological behavior, TEM images, irritation and cornea retention. Production of nanoemulsion was based on high-speed shear and homogenization process, and then mixed with gellan gum to prepare FBA/NE-ISG. Rheological study showed that FBA/NE-ISG possesses strong gelation capacity and its viscosity and elastic modulus increases by 2 Pa?s and 5 Pa respectively when mixed with artificial tear at the ratio of 40∶7. TEM images suggested no significant changes in particle morphology of the pre and post gelation. Good ocular compatibility of FBA/NE-ISG was testified by the irritation test based on histological examination. In vivo fluorescence imaging system was applied to investigate the characteristics of cornea retention, and the results indicated that the nanoemulsion-in situ gel (NE-ISG) prolonged the cornea retention time significantly since KNE-ISG (0.008 5 min-1) was much lower compared with flurbiprofen sodium eye drops (FB-Na, 0.03% w/v) of which the KEye drops was 0.105 2 min-1, indicated that the cornea retention time of NE-ISG was prolonged significantly. Pharmacokinetics of FBA/NE-ISG in rabbit aqueous humor was studied by cornea puncture, the MRT (12.3 h) and AUC0→12 h (126.8 ?g?min?mL-1) of FBA/NE-ISG was 2.7 and 2.9 times higher than that of the flrubiprofen sodium eye drops respectively, which meant that the ocular bioavailabilitywas improved greatly by the novel preparation. Therefore, FBA/NE-ISG can enhance the ocular bioavailability by prolonging drug corneal retention significantly. What’s more, encapsulated by emulsion droplets prodrug flurbiprofen (FBA) instead of flurbiprofen (FB) can reduce the ocular irritation.

The aim of the study is to prepare flurbiprofen axetil nanoemulsion-in situ gel system (FBA/NE-ISG) and observe its ocular pharmacokinetics, rheological behavior, TEM images, irritation and cornea retention. Production of nanoemulsion was based on high-speed shear and homogenization process, and then mixed with gellan gum to prepare FBA/NE-ISG. Rheological study showed that FBA/NE-ISG possesses strong gelation capacity and its viscosity and elastic modulus increases by 2 Pa*s and 5 Pa respectively when mixed with artificial tear at the ratio of 40 : 7. TEM images suggested no significant changes in particle morphology of the pre and post gelation. Good ocular compatibility of FBA/NE-ISG was testified by the irritation test based on histological examination. In vivo fluorescence imaging system was applied to investigate the characteristics of cornea retention, and the results indicated that the nanoemulsion-in situ gel (NE-ISG) prolonged the cornea retention time significantly since K(NE-ISG) (0.008 5 min(-1) was much lower compared with flurbiprofen sodium eye drops (FB-Na, 0.03% w/v) of which the K(Eye drops) was 0.105 2 min(-1), indicated that the cornea retention time of NE-ISG was prolonged significantly. Pharmacokinetics of FBA/NE-ISG in rabbit aqueous humor was studied by cornea puncture, the MRT (12.3 h) and AUC(0-12h) (126.8 microg x min x mL(-1)) of FBA/NE-ISG was 2.7 and 2.9 times higher than that of the flurbiprofen sodium eye drops respectively, which meant that the ocular bioavailability was improved greatly by the novel preparation. Therefore, FBA/NE-ISG can enhance the ocular bioavailability by prolonging drug corneal retention significantly. What's more, encapsulated by emulsion droplets prodrug flurbiprofen (FBA) instead of flurbiprofen (FB) can reduce the ocular irritation.

Aim: To prepare novel cubosome system for effective ocular drug delivery with dexamethasone(DEX) as model drug, and investigate its pharmacokinetic profile in rabbit aqueous humor. Methods: DEX cubosomes was prepared by the method of high-pressure homogenization, and its particle size was determined by the laser particle sizer, and the microstructure observed by cryo-TEM. In addition, Draize method was used to evaluate the ocular irritation of DEX cubosomes. Finally, aqueous humor microdialysis was utilized to evaluate its pharmacokinetics in rabbits. Results: Average diameter of DEX cubosomes was about 200 nm, and the cubic structure of the particles was evident under the cryo-TEM. It was indicated by Draize scores that this dosage form exhibited excellent ocular tolerance. Results of pharmacokinetic profiles in aqueous humor showed that AUC_(0→240) and c_(max) of the rabbit group administered with DEX cubosomes were significantly higher than those of the control group( DEX sodium phosphate eye drops), with AUC_(0→240) of the formulation Fl( 10% oil content) and F2(20% oil content) is being about 1. 8 and 2. 9 times higher than those of the control group, respectively( P <0. 05). Conclusion: The novel ocular drug delivery system of DEX cubosomes was capable of increasing significantly the drug concentration in aqueous humor, and improving the ocular bioavailability.

ObjectiveTo study the effects of placental transfusion of umbilical cord milking on very low birth weight (VLBW) infants. Methods Fifty-seven VLBW infants born from September 2011 to May 2014 who had umbilical cord milking at birth were selected as experimental group. Sixty-one VLBW infants born from January 2008 to August 2011 who had normal cord clamping at birth were selected as control group. The complications of VLBW infants, blood transfusion, frequency of using pulmonary surfactant (PS), the duration of mechanical ventilation, the duration of oxygen and mortality were compared between two groups.Results The incidence of severe asphyxia, IVH and anemia was signiifcantly lower in experimental group than in control group (P< 0.05). The blood transfusion and transfusion volume, duration of mechanical ventilation, and duration of oxy-gen were signiifcantly lower in experimental group than in control group (P< 0.05).Conclusions Umbilical cord milking can reduce the incidence of severe asphyxia, IVH and anemia. It also can reduce the blood transfusion, the duration of mechanical ventilation, and the duration of oxygen in VLBW infants.

Objective To investigate the diagnostic value of DNA ploidy analysis combined with immunocytochemistry p16/ki-67 double staining in cervical high grade squamous intraepithelial neoplasia(HSIL) and cervical squamous cell carcinoma(SCC).Methods A total of 73 cases of cytological tests were randomly collected.Among them,53 cases were small DNA ploidy abnormal cells and 20 cases were DNA ploidy negative.The p16/Ki-67 results were detected by immunocytochemistry double staining.With the pathological results as the golden standard,the diagnostic values of DNA ploidy analysis and DNA ploidy analysis combined with p16/Ki-67 double staining in HSIL + was contrastively analyzed by pathologic results.Results Among 20 samples of DNA ploidy negative,the p16/Ki-67 double staining results all were negative.The positive predictive value of DNA ploidy analysis for HSIL + was 34.62％.The sensitivity of DNA ploidy analysis combined with p16/Ki-67 double staining for HSIL + was 84.62％,and its specificity was 92.31％,the positive predictive value was 78.57％ and the negative predictive value was 94.74％,which were significantly higher than those of DNA ploidy analysis(P＜0.05).Conclusion p16/Ki-67 double staining can significantly im prove the prediction value of HSIL.The DNA ploidy analysis combined with p16/Ki-67 double staining is an effective method for predicting HSIL +,which is suitable for the implementation in the areas with lack of medical resources.

Objective:To evaluate the immunomodulating effect of oyster peptide on immunosup-pressed mice.Methods:ICR mice injected with cyclophosphamide (CTX)were adopted as the module group,with mice without treatment as the control group,and different dosages of oyster peptide (0.5 g/kg,1 .0 g/kg,and 2.0 g/kg)were given to the low,middle,and high groups for 1 5 days.The body weight,spleen,and thymus weight of the mice,structures under the microscope of the immune organs, numbers of white blood cells,ratios of T lymphocyte subsets,immune cytokines and numbers of nuclear cells,and DNA content in bone marrow were all assessed.Results:Compared with the control group, the structures of thymus and spleen of the mice in the CTX group appeared obscure and shrunk when ob-served under microscope,the number of their white blood cells declined (P =0.04),the proportion of their CD3 +T cells in peripheral blood declined (P =0.003),the proportion of their CD8 +T cells in pe-ripheral blood declined (P =0.002),the concentration of their IL-5 in peripheral blood significantly in-creased (P <0.01 ),the concentration of their nucleated cells and DNA density in bone marrow de-creased (P =0.04,P <0.01 ).Oyster could improve the structures of thymus and spleen of the immuno-suppressed mice.Compared with the CTX group,the number of white blood cells in 2.0 g/kg group in-creased (P =0.003),the proportion of CD3 +T cells in peripheral blood in 1 .0 g/kg group (P =0.04) and 2.0 g/kg group (P =0.02)increased,the proportion of CD8 +T cells in peripheral blood in 2.0 g/kg group increased (P =0.002),the concentration of IL-5 in peripheral blood in all the oyster treated groups increased (P <0.01 in 0.5 g/kg,1 .0 g/kg,and 2.0 g/kg groups),the concentration of IL-1 7 in peripheral blood in 2.0 g/kg group decreased (P =0.03),the concentration of nucleated cells in bone marrow of all the oyster treated groups increased (0.5 g/kg vs.CTX,P =0.04;1 .0 g/kg vs. CTX,P =0.02;2.0 g/kg vs.CTX P =0.01 ),the DNA content in bone marrow of all the oyster treated groups increased (P <0.01 in the 0.5 g/kg,1 .0 g/kg,and 2.0 g/kg groups).Conclusion:Oyster peptide could improve the structures of immune organs of the CTX-induced immunosuppressed mice,re-cover the imbalances of T lymphocyte subsets,improve the immune cytokines and increase numbers of nucleated cells and DNA content in bone marrow,thus improving the immunologic function.

Objective Investigate the expression level and clinical significance of microRNA-223-3p(miR-223-3p)in the serum of pregnant women with preterm premature rupture of membranes(PPROM).Methods A total of 91 pregnant women who underwent cesarean delivery at the Xuzhou Maternal and Child Health Hospital affiliated with Xuzhou Medical University between April and September 2023 were selected for the study.This included 60 cases of PPROM and 31 cases of term normal pregnant women as the research subjects.The study group was divided based on the pathological results of the membranes into:PPROM group without histological chorioamnionitis(HCA)(PPROM group,n = 37),and PPROM group with HCA(PPROM+HCA group,n = 23).Serum samples from pregnant women were collected before hospital treatment,and the expression level of miR-223-3p in the serum was detected by quantitative real-time PCR(qRT-PCR).The levels of inflammatory factors such as IL-1β,IL-6,IL-8,and TNF-α in the serum were measured by enzyme-linked immunosorbent assay(ELISA).Results The expression level of miR-223-3p in the serum of the PPROM+HCA group was significantly higher than that of the PPROM group and the normal group(P＜0.05).The expression levels of IL-1β,IL-6,IL-8,and TNF-α in the serum of the PPROM+HCA group were also significantly higher than those of the PPROM group and the normal group(P＜0.05).There was a positive correlation between the expression level of miR-223-3p in the serum of the PPROM+HCA group and the expression levels of IL-1β,IL-6,IL-8,and TNF-α(r = 0.553,0.505,0438,0.656,P＜0.05).Conclusion The upregulation of miR-223-3p in the serum of pregnant women with PPROM+HCA is associated with the severity of inflammation in PPROM.

OBJECTIVE: To investigate the effect of miR-4443 expression on migration and invasion of breast cancer. METHODS: We examined the expression of miR-4443 in breast carcinoma in situ and paired adjacent tissues from 3 breast cancer patients with high-throughput sequencing and verified the results using TCGA database. We also detected miR-4443 expressions using real-time quantitative PCR (RT-qPCR) in low invasive and highly invasive breast cancer cells (MCF-7 and MDA-MB-231 cells, respectively). The changes in apoptosis, migration and invasion of MCF-7 and MDA-MB-231 cells after transfection with miR-4443 mimics, mimics-NC, miR-4443 inhibitor or inhibitor-NC were analyzed using flow cytometry, wound healing assay and Transwell invasion assay. The target gene of miR-4443 was predicted by bioinformatics software and validated by a dual luciferase reporter gene system. RT-qPCR and Western blotting were performed to detect the expression of recombinant human phosphatidyl ethanolamine binding protein 1 (PEBP1) in the transfected cells. RESULTS: The expression of miR-4443 was significantly higher in the breast cancer tissues than in the adjacent tissues ( CONCLUSIONS MiR-4443 promotes the migration and invasion of breast cancer cells by inhibiting the expression of PEBP1, suggesting the possibility of suppressing miR-4443 expression as a potential therapeutic strategy for breast cancer.
Breast Neoplasms/genetics* ; Cell Line, Tumor ; Cell Movement ; Cell Proliferation ; Gene Expression Regulation, Neoplastic ; Humans ; MCF-7 Cells ; MicroRNAs/genetics* ; Neoplasm Invasiveness/genetics* ; Phosphatidylethanolamine Binding Protein

Objective To explore the effect of high-frequency repetitive transcranial magnetic stimulation (rTMS) on central facial paralysis after ischemic stroke. Methods From June, 2020 to June, 2021, 54 patients with central facial palsy after ischemic stroke who were hospitalized in the Rehabilitation Department of Xuzhou Central Hospital were randomly divided into control group (n = 27) and experimental group (n = 27). Both groups were given conventional rehabilitation treatment, including medication and facial muscle rehabilitation training. The experimental group was treated with 5 Hz rTMS on the affected primary motor cortex, and the control group was treated with the same parameters of sham stimulation at the same site. Before treatment and four weeks after treatment, the House-Brackmann Grading System 2.0 (HBGS-2), the Sunnybrook Facial Grading System, the horizontal distance difference between the bilateral mouth corners to the lower center of the philtrum at rest, the horizontal distance difference between the bilateral mouth corners to the intersection of the mandibular central incisor when showing the teeth at the best effort and the angle of the tongue midline deviating from the facial midline when the tongue was stretched out were used to evaluate the facial nerve function of the patient. Results One case dropped down in each group. Before treatment, there was no significant difference in the scores of HBGS-2 and Sunnybrook Facial Grading System, the horizontal distance difference between the bilateral mouth corners to the lower center of the philtrum at rest, the horizontal distance difference between the bilateral mouth corners to the intersection of the mandibular central incisor when showing the teeth at the best effort, and the angle of the tongue midline deviating from the facial midline when the tongue was stretched out between two groups (P > 0.05). After treatment, all the indexes significantly improved in both groups (|t| > 8.987, P < 0.001), and were better in the experimental group than in the control group (t > 2.939, P < 0.01). Conclusion 5 Hz rTMS on the affected primary motor cortex is effective on the facial nerve function of patients with central facial palsy after ischemic stroke.