Crowns ; Dental Veneers ; Humans ; Post and Core Technique ; Tooth Crown ; pathology ; surgery ; Tooth Root ; pathology ; surgery

Adult ; Bronchoalveolar Lavage ; adverse effects ; Humans ; Male ; Middle Aged ; Pneumoconiosis ; therapy ; Tachycardia, Sinus ; etiology

The warrant consideration thing in current dental clinical is the allergy or oversensitivity of patients to prosthodontics materials. The article presents the essence, clinical symptoms, testing difficulties of allergy, and discusses the related situations of allergy to metal, porcelain and polymers materials, and also emphasizes the principle of treatment to allergy.
Dental Porcelain ; Humans ; Hypersensitivity ; Prostheses and Implants ; Prosthodontics

OBJECTIVETo verify the clinical effect of the penetration acupuncture at the acupoints of governor vessel(GV) and bladder meridian on head for mild cognitive disorder after stroke.

METHODSOne hundred and ten patients were randomly divided into an observation group and a control group, 55 cases in each one. Penetration acupuncture was used at the acupoints of GV and bladder meridian on head in the observation group,namely Wuchu (BL 5) to Chengguang (BL 6) and Tongtian (BL 7) to Luoque (BL 8) bilaterally, and Shenting (GV 24) to Xinhui (GV 22), Qianding (GV 21) to Baihui (GV 20), Houding (GV 19) to Qiangjian (GV 18). Body acupuncture and conventional western medication were applied in the both two groups. Acupuncture was adopted once a day, five times a week and eight weeks totally. The changes of Montreal Cognitive Assessment (MoCA), Mini mental state examination scale(MMSE), self-rating depressive scale (SDS) and activities of daily living scale (Barthel index) were compared between the two groups before treatment, in the middle of treatment(at the forth week) after treatment(at the eighth week) and in three weeks after treatment(follow-up).

RESULTSAfter treatment of four and eight weeks and at the time of follow-up, the results of MoCA, MMSE, SDS and Barthel index were apparently im proved compared with those before treatment in the two groups (all P < 0.01). After treatment of eight weeks and at the time of follow-up, the scores of MoCA and SDS were obviously improved in the observation group compared with those in the control group (P < 0.01, P < 0.05). The improvements of MMSE in the observation group were more marked than those in the control group at all times (P < 0.01, P < 0.05). But there was no statistical significance about the change of Barthel index between the two groups (all P > 0.05).

CONCLUSIONPenetration acupuncture at the acupoints of GV and bladder meridian on head can remarkablely improve the cognitive function of the patients with mild cognitive disorder after stroke,and have some efficacy of relieving the bad mood such as depression.

Activities of Daily Living ; Acupuncture Points ; Acupuncture Therapy ; Aged ; Aged, 80 and over ; Cognition ; Cognitive Dysfunction ; drug therapy ; etiology ; psychology ; therapy ; Combined Modality Therapy ; Female ; Humans ; Male ; Meridians ; Middle Aged ; Stroke ; complications ; Treatment Outcome

OBJECTIVETo study the residual stresses of ceramic-metal bond at viscoelastic and elastic phases during cooling of porcelain-fused-to-metal in order to precisely calculate the ceramic-metal bond strength and improve the restorations.

METHODSThe finite element model was set up according the crack initiation test (three-point flexure bond test) based on ISO Standard, elements of viscoelastic and themal-displacement were used to part the model. The result at viscoelastic phases was used as initiation condition of elastic phases to add up.

RESULTSThe compressive stress was caused by metal during cooling occurred in the ceramic. The shear stress induced by loading was offset by thermal shear stress. Load tensile stress and the thermal compressive stress vertical of interface concentrated at the end of the bond interface, but the tensile was greatly higher.

CONCLUSIONThe residual stress is very important to metal-ceramic restorations, and the viscoelastic behavior of porcelain greatly influences it. If the metal and ceramic are compatible,the components stresses of the residual stresses may benefit to ceramic-metal bond, and can be taken as a part of bond stresses.

Dental Porcelain ; Dental Stress Analysis ; Materials Testing ; Metal Ceramic Alloys ; Stress, Mechanical

Objective To detect the expression of EIF5A2 in hepatocellular carcinoma(HCC) and to explore its relation with clinicopathological characters and prognosis of HCC patients. Methods The expression of EIF5A2 mRNA and protein in 12 pairs of fresh HCC and corresponding non-tumor tissues adjacent to the cancer was examined by qRT-PCR and Western blot. The expression level of EIF5A2 in 284 pairs of HCC and adjacent non-tumor tissues was detected by IHC staining. Then we analyzed between EIF5A2 expression and clinical pathological parameters and prognosis of HCC patients. Results The relative expression levels of EIF5A2 mRNA and protein in fresh HCC tissues were significantly higher than those in the corresponding adjacent non-tumor tissues (t=5.305, P=0.0003; t=10.120, P < 0.001); EIF5A2 expression in 284 HCC tissues was significantly higher than that in the corresponding adjacent non-tumor tissues (z=-12.186, P < 0.001). The expression of EIF5A2 was significantly correlated with tumor size (χ²=13.079, P < 0.001), tumor multiplicity (χ²=4.589, P=0.032) and differentiation degree (χ²=4.844, P=0.028). The 3- and 5-year overall survival time and disease-free survival time of the patients with high expression of EIF5A2 were significantly shorter than those with low expression of EIF5A2 (P < 0.001). EIF5A2 was an independent prognostic factor affecting the 3- and 5-year overall survival time and disease-free survival time of HCC patients (P < 0.05). Conclusion The up-regulation of EIF5A2 expression may be related with the occurrence and development of hepatocellular carcinoma. The high expression of EIF5A2 is an independent influence factor for poor prognosis and EIF5A2 can be used as a potential molecular marker for predicting the prognosis of HCC patients.

Objective:To investigate the effect of cyclin A1 on the invasion, metastasis, and prognosis of hepatocellular carcinoma (HCC).Methods:Immunohistochemistry (IHC) was used to detect the expressional condition of cyclin A1 in HCC and paraffin-embedded non-tumor adjacent tissues. Kaplan-Meier method was used for the survival analysis of patients with HCC. Western blot (WB) was used to detect the expression of cyclin A1 in HCCLM3 and QGY-7703 cells. Scratch wound healing assay, transwell migration, and invasion assay were used to detect the effect of cyclin A1 overexpression on cell migration and invasion ability. WB was used to detect changes in the expression of matrix metalloproteinase (MMP) 2, MMP9, and vascular endothelial growth factor (VEGF) after overexpression of cyclin A1. Measurement data were compared using a t-test and analysis of variance. Count data was measured using χ2 test and the Log-rank method was performed for survival analysis. Results:Cyclin A1 expression rates were higher in the tissues of HCC patients with recurrent metastasis than in the tissues of patients without recurrent metastasis (60.42% vs. 46.81%, χ2 = 4.711, P < 0.05). The overall postoperative survival time (OS) and disease-free survival (DFS) were shorter in patients with high cyclin A1 expression than those with low cyclin A1 expression (45.9 months vs. 53.1 months; 42.9 months vs. 51.3 months, and P < 0.01). The postoperative OS and DFS were shorter in patients with high cyclin A1 expression and recurrent metastasis than those with low cyclin A1 expression without recurrent metastasis (31.7 months vs. 43.9 months; 18.0 months vs. 31.5 months, and P < 0.05). HCCLM3 and QGY-7703 cells were higher in the cyclin A1-pEX group than in the empty vector (vector) group (1.56 ± 0.06 vs. 0.18 ± 0.01, t = 18.75, P < 0.001; 1.31 ± 0.05 vs.0.37 ± 0.02, t = 15.17, P < 0.001). The migrated distances of HCCLM3 cells in the cyclin A1-pEX group and the vector group were (536.7 ± 14.5) μm and (327.3 ± 9.3) μm, t = 11.84, P < 0.05, respectively, while the migrated distances of QGY-7703 cells in the two groups were (916.7 ± 35.3) μm and (320.0 ± 20.8) μm, t = 13.54, P < 0.01. The migrated numbers of HCCLM3 cells in the cyclin A1-pEX group and vector group were (37.3 ± 2.4) and (7.0 ± 1.2), t = 12.67, P < 0.001, and the number of invasive cells was (73.7 ± 4.1) and (12.6 ± 1.5), t = 12.36, P < 0.001, respectively. The migrated numbers of QGY-7703 cells in the two groups were (153.3 ± 6.0) and (17.7 ± 3.7), t = 17.59, P < 0.001, and the number of invasive cells was (45.0 ± 2.9) and (9.3 ± 1.5), t = 10.66, P < 0.001, respectively. The expression levels of MMP2, MMP9, and VEGF in HCCLM3 and QGY-7703 cells were significantly higher in the cyclin A1-pEX group than those in the vector group ( P < 0.05). Conclusion:Cyclin A1 plays an important role in HCC invasion and metastasis, but HCC patients with high cyclin A1 expression have a poor prognosis. Hence, cyclin A1 has high guiding significance for evaluating patient prognosis.

BACKGROUNDOphthalmic gel has been developed to increase the drug concentration in aqueous humor and to retard the loss of drug from the conjunctival sac. The research was to compare the drug concentration in aqueous humor of cataract patients administered 0.3% gatifloxacin ophthalmic gel with that in patients administered 0.3% gatifloxacin ophthalmic solution.

METHODSNinety-six patients with cataract (96 eyes) were randomly assigned to 8 groups. The patients in groups 1-4 received topical gatifloxacin 0.3% ophthalmic gel and those in groups 5-8 received gatifloxacin 0.3% ophthalmic solution. The dose regimen was 1 drop, 4 times a day for 3 consecutive days prior to cataract surgery. On the day of surgery, 1 drop was applied at 15, 30, 60 or 120 minutes before commencement of cataract surgery in groups 1 and 5, groups 2 and 6, groups 3 and 7, and groups 4 and 8, respectively. Aqueous humor was extracted during the cataract surgery for the analysis of gatifloxacin concentration..

RESULTSThe concentrations of gatifloxacin in aqueous humor were (0.24 +/- 0.25) microg/ml, (1.11 +/- 0.74) microg/ml, (2.32 +/- 2.01) microg/ml and (1.85 +/- 1.14) microg/ml in groups 1 to 4, and (0.16 +/- 0.25) microg/ml, (0.31 +/- 0.24) microg/ml, (0.75 +/- 0.28) microg/ml and (0.33 +/- 0.22) microg/ml in groups 5 to 8, respectively. Patients receiving gatifloxacin ophthalmic gel showed greater mean values of gatifloxacin concentration in aqueous humor than those receiving gatifloxacin solution, and such differences were significant with P < 0.05 for all comparisons except that between groups 1 and 5.

CONCLUSIONTopical gatifloxacin ophthalmic gel can attain significantly greater drug concentrations in human aqueous humor than gatifloxacin ophthalmic solution.

Aged ; Aged, 80 and over ; Anti-Infective Agents ; administration & dosage ; analysis ; pharmacokinetics ; therapeutic use ; Aqueous Humor ; metabolism ; Cataract ; drug therapy ; metabolism ; Chromatography, High Pressure Liquid ; Female ; Fluoroquinolones ; administration & dosage ; analysis ; pharmacokinetics ; therapeutic use ; Humans ; Male ; Middle Aged ; Tandem Mass Spectrometry

OBJECTIVEDue to their lower risk for induction of resistance, antimicrobial peptides with selective anticancer effect could be developed into a new generation of anticancer drugs. We conjugated an antimicrobial peptide with tumor-targeting peptides (TMTP1) to explore whether it has inhibiting effect on the progression and metastasis of transplanted prostate cancer and gastric cancer in nude mice.

METHODSSubcutaneously transplanted human prostate cancer and orthotopically transplanted human gastric cancer in nude mice were prepared. 50 µmol/L PBS (control group), 50 µmol/L TMTP1 (TMTP1 group) or 50 µmol/L TMTP1-GG-D(KLAKLAK)(2) (treatment group) were injected i.p. to the three groups of nude mice, respectively. The binding ability of the novel fusion polypeptide TMTP1-GG-D(KLAKLAK)(2) to the tumors and its antitumor effect were assessed by measurement of tumor volume, histopathological examination of the tumor tissues, testing apoptosis index of tumor cells with TUNEL staining, and survival curve plotting of the mice.

RESULTSThe median survival time of subcutaneous prostate cancer-bearing mice was 50 days in the control group, 55 days in the TMTP1 group, and 70 days in the TMTP1-GG-D(KLAKLAK)(2) group (P < 0.05). The median survival time of the subcutaneous gastric cancer-bearing mice was 25 days in the control group, 30 days in the TMTP1 group, and 45 days in the TMTP1-GG-D(KLAKLAK)(2) group (P < 0.01). The tumor volume in the subcutaneous prostate cancer-bearing mice was (2.5 ± 0.3)cm(3) in the control group, (1.8 ± 0.2) cm(3) in the TMTP1 group, and (0.3 ± 0.1)cm(3) in the TMTP1-GG-D(KLAKLAK)(2) group (P < 0.01). The tumor volume of the subcutaneous gastric cancer-bearing mice was (3.8 ± 0.4) cm(3) in the control group, (3.2 ± 0.2)cm(3) in the TMTP1 group, and (0.4 ± 0.1) cm(3) in the TMTP1-GG-D(KLAKLAK)(2) group (P < 0.01). Large tumors were observed in the stomach of the orthotopic gastric cancer-bearing mice of the control and TMTP1 groups. The tumor volume of the TMTP1-GG-D(KLAKLAK)(2) group was obviously reduced. White metastases in the liver, spleen and abdominal wall were observed in the control and TMTP1 groups (P < 0.01). TUNEL staining revealed that the apoptosis index of the control group was (31.9 ± 1.5)%, TMTP1 group (37.2 ± 2.3)% and TMTP1-GG-D(KLAKLAK)(2) group (69.7 ± 2.1)% (P < 0.01).

CONCLUSIONSThe results of our study demonstrate that the novel fusion peptide of antimicriobial peptide conjugated with TMTP1 can effectively inhibit tumor progression and metastasis, therefore, is promising to be a novel effective anticancer drug.

Animals ; Antineoplastic Agents ; pharmacology ; Apoptosis ; drug effects ; Cell Line, Tumor ; Humans ; Liver Neoplasms ; secondary ; Male ; Mice ; Mice, Nude ; Neoplasm Transplantation ; Oligopeptides ; pharmacology ; Peptides ; pharmacology ; Prostatic Neoplasms ; pathology ; Splenic Neoplasms ; secondary ; Stomach Neoplasms ; pathology ; Tumor Burden ; drug effects ; Xenograft Model Antitumor Assays

Objective To Determine the aqueous concentration of gati-floxacin ophthalmic solution in the aqueous humor of patients undergoing cataract surgery. Methods Total 36 patients undergoing cataract surgery were divided into 4 groups randomly. All patients received topical gati-floxacin ophthalmic solution 4 doses every day for 3 days before cataract surgery. One drop of antibiotic was administered beginning 15 min prior to surgery for group 1, 30 min for group 2, 60 min for group 3, 120 min for group 4. Aqueous humor (0. 1 mL) was sampled via paracentesis. Catifloxacin concentrations were determined using validated high performance liquid chromatography/mass spectrometry procedures. Results Gatifloxacin concentrations in aqueous humor was (0. 15 ±0. 29) ,(0. 33 ±0.22), (0.31 ±0.19), (0.74 ±0.32) μg · mL~(-1) for 15, 30, 60, 120 min, respectively. Conclusion Gatifloxacin ophthalmic solution has extensive corneal penetration. The aqueous humor concentration is a-bove the minimum inhibitory concentration for important pathogens to a-chieve effective bacterial killing. Gatifloxacin concentration in aqueous humor was highest on 120 min.