Objective:To assess the clinical efficacy of two different diameter Osstem MS one-stage implant restoration of small edentu-lous space in the mandibular anterior region.Methods:85 patients were treated by Osstem MS one-stage implant with the diameter of 2.5 mm(n =66)and 3.0 mm(n =66)respectively for the restoration of small edentulous space in mandibular anterior region.The mesi-al and distal marginal bone level and soft tissue were statistically analyzed after 1 2 and 24 months of functional load.The implant survival rate was evaluated according to Wheeler's survival criteria.Results:The survival rate of the implants was 1 00%.The mean changes in marginal bone level(mm)on the mesial side of 2.5 mm and 3.0 mm diameter implants were 0.275 ±0.638 and 0.098 ±0.31 9,distal aspects were 0.360 ±0.588 and 0.1 09 ±0.323 after 1 2 months of functional load;while 0.299 ±0.672 and 0.099 ±0.31 8,0.381 ± 0.581 and 0.1 07 ±0.31 9 after 24 months of functional load.The mesial and distal marginal bone loss of 2.5 mm diameter implant was greater than that of 3.0 mm after 1 2 and 24 months of functional load(P <0.05).No significant change on the marginal bone level was found aomog the same diameter implants from 1 2 to 24 month observation(P >0.05).No relevant complication of peri-implant soft tissue was shown.Conclusion:Favorable clinical effects including function and aesthetics can be achieved by Osstem MS one-stage implant with the diameter of 2.5 mm or 3.0 mm for the restoration of small edentulous space in the mandibular anterior region,however,the mar-ginal bone loss was greater around 2.5 mm diameter implant.

In this study, we investigated the effect of Cigu Xiaozhi formula on HSC-T6 activity in hypoxic microenvironment based on network pharmacology and computer-aided drug design, and predicted and verified its possible targets and related signaling pathways. The potential active components and targets of Cigu Xiaozhi formula were screened by searching Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP), Encyclopaedia of Traditional Chinese Medicine (ETCM) and Bioinformatics Analysis Tool for Molecular Mechanism of Traditional Chinese Medicine (BATMAN-TCM) databases, and the liver fibrosis related targets retrieved from Gene Cards and Pharm GK database were integrated to obtain the potential targets of Cigu Xiaozhi formula in the treatment of liver fibrosis. GO enrichment analysis and KEGG signaling pathway enrichment analysis were performed on Omic Share platform, and Cytoscape software was used to construct the "potential active ingredient-key target-pathway" network. The active components and target proteins were subjected to molecular docking analysis by Auto Dock software. According to the results of molecular dynamics simulation and binding free energy calculation, the top 5 active components with degree were scored. The active components stigmasterol and β-sitosterol were subjected to molecular docking. CoCl₂ was used to induce HSC-T6 cells to construct hypoxia model in vitro. The cell viability was detected by CCK-8 assay, and the optimal time and concentration of hypoxia model of HSC-T6 cells was determined to be 100 µmol·L^-1 CoCl₂ for 24 h. Under hypoxia condition, HSC-T6 cells were activated, the wound healing rate was significantly increased, and the fluorescence signal of activation marker protein α-smooth muscle actin (α-SMA) was significantly enhanced. However, 6% drug-containing serum could inhibit the activation of HSC-T6 cells, and the wound healing rate was significantly decreased, and the fluorescence signal of α-SMA was significantly weakened. Further studies showed that the expressions of hypoxia-inducible factor-1α (HIF-1α), α-SMA and key proteins of Hedgehog (Hh) signaling pathway in HSC-T6 cells were up-regulated under hypoxia, while the expressions of HIF-1α, α-SMA, Patched-1 (Ptch-1) and glioma related oncogene homology-1 (Gli-1) were down-regulated in 6% drug-containing serum group, the YC-1 group and the cyclopamine group. These results indicated that HIF-1α and Hh signaling pathways were involved in the activation of HSC-T6 cells, and the traditional Chinese medicine Cigu Xiaozhi formula could inhibit the activation of HSC-T6 cells, and the mechanism may be related to the inhibition of HIF-1α expression and the blocking of Hh signaling pathway. In conclusion, Cigu Xiaozhi formula can inhibit the activation of HSC-T6 cells by directly acting on HIF-1α and Hh signaling pathway, and exert an anti-hepatic fibrosis effect. The animal experimental protocol has been reviewed and approved by Laboratory Animal Ethics Committee of Gansu University of Chinese Medicine, in compliance with the Institutional Animal Care Guidelines.

OBJECTIVETo evaluate the efficacy and safety of etanercept plus Tripterygium wilfordii polyglycoside (TWP) in elderly patients with active rheumatoid arthritis (RA).

METHODSTotally 46 elderly patients with active RA were randomly assigned to the treatment group (22 cases) and the control group (24 cases). All patients received subcutaneous injection of etanercept, 25 mg each time, twice per week. The dosage was reduced to once per week 3 months later. Patients in the treatment group took TWP Tablet (10 mg each time, three times per day), while those in the control group took methotrexate (MTX), 10 mg each time, once per week. The whole course lasted for 24 weeks. Patients' rest pain, tender joint number, swollen joint number, health assessment questionnaire (HAQ), patients' global assessment, physicians' global assessment, erythrocyte sediment rate (ESR), C reactive protein (CRP), rheumatic factor were assessed at week 0, 4, 8, 12, and 24. The curative effect was statistically evaluated by the United States Institute of Rheumatology ACR20, ACR50, and ACR70 improvement criteria. Meanwhile, any adverse event was recorded and evaluated.

RESULTSTotally 41 completed the trial, and 5 dropped off (3 in the treatment group and 2 in the control group). Compared with the control group, there was no statistical difference in ACR20, ACR50, or ACR70 in the treatment group (P > 0.05). Compared with before treatment in the same group, there was some improvement in tender joint number, swollen joint number, visual analogue scale (VAS) for patients' global assessment, VAS for physicians' global assessment, ESR, CRP, and HAQ between the two groups, showing statistical difference (P < 0.05). Compared with the control group in the same phase, there was no statistical difference in the treatment group (P > 0.05). There was no statistical difference in the occurrence of adverse events between the two groups.

CONCLUSIONSEtanercept plus TWP could achieve equivalent therapeutic effect to that of Etanercept plus MTX. The two regimens could improve clinical signs, symptoms, and QOL related to RA. They were well tolerated in the treatment of elderly patients with active RA.

Aged ; Antirheumatic Agents ; therapeutic use ; Arthritis, Rheumatoid ; drug therapy ; Drug Therapy, Combination ; Etanercept ; Female ; Glycosides ; therapeutic use ; Humans ; Immunoglobulin G ; therapeutic use ; Male ; Middle Aged ; Receptors, Tumor Necrosis Factor ; therapeutic use ; Treatment Outcome ; Tripterygium ; chemistry

OBJECTIVETo explore the normal aerification of paranasal sinuses in Chinese children with magnetic resonance imaging.

METHODSTwo hundred and eighty Chinese children aged from 17 days to 14 years without any symptoms related to sinusitis were statistically analyzed in MRI features, including counting the number of paranasal sinus pneumatization and the maximum axial and sagittal area of the left maxillary.

RESULTSThe pneumatization rate of maxillary sinus was 85% in children aged from 0 to 1 years. Until 3 years the pneumatization rate of maxillary sinus was 95% and there was no significant difference in boys and girls (χ(2) = 0.741, P = 0.389). The pneumatization rate of maxillary sinus reached 100% after 4 years old. The pneumatization rate of ethmoid sinus was 100% in this study. The pneumatization rate of sphenoid sinus was 0 within 1 year old, 49% within 4 years old and 100% after 7 years old. There was no significant difference in boys and girls on the pneumatization rate of sphenoid sinus (χ(2) = 2.452, P = 0.117). The pneumatization rate of frontal sinus was 0 within 5 years old, 62% within 9 years old and 95% after 10 years old. There was no significant difference in boys and girls on the pneumatization rate of frontal sinus (χ(2) = 0.124, P = 0.724). The axial and sagittal maximum area of maxillary sinus was (689.28 ± 221.79) and (659.76 ± 263.31) mm(2) in girls and (668.13 ± 206.38) and (638.60 ± 207.67) mm(2) in boys. The differences were significant (t = -19.78, P < 0.001; t = -19.89, P < 0.001).

CONCLUSIONThe study of the development and normal aerification of paranasal sinuses of children can help radiologist make correct diagnosis of paranasal sinuses in children.

Adolescent ; Child ; Child, Preschool ; Female ; Humans ; Infant ; Infant, Newborn ; Magnetic Resonance Imaging ; Male ; Paranasal Sinuses ; anatomy & histology ; growth & development

AIM To investigate the effects of imperatorin and isoimperatorin on the expression of mouse liver cytochrome P450s and hepatic toxicity in mice.METHODS C57BL/6 mice were randomly divided into control and administration groups,which were treated with imperatorin or isoimperatorin by intragastric administration for two weeks.The effects of two compounds on mRNA expressions of major P450s isoforms were analyzed by RT-PCR.The P450 expression was determined by Western blot.The serum levels of glutamicpyruvic transaminase (GPT),glutamic-oxalacetic transaminase (GOT) and blood total bilirubin (TBIL) were detected by kits.The change of liver tissue was observed with HE staining.RESULTS The Cyp1a2 mRNA expression was significantly induced by 40 mg/kg imperatorin as compared with the control group.For isoimperatorin,the Cyp2c37 mRNA expression was significantly induced.Western blot results showed that CYP1 A2 expression was significantly induced by imperatorin.For isoimperatorin,the CYP2C and CYP2E1 expressions were significantly induced.Blood biochemical indices showed that 40 mg/kg isoimperatorin led to increased serum GOT and TBIL levels.Pathological analysis showed that both compounds (at the doses of 20 mg/kg and 40 mg/kg) could cause liver edema to a certain degree.CONCLUSION Imperatorin is the inducer of CYP1A2,while isoimperatorin is the inducer of CYP2C and CYP2E1.These two compounds (at the doses of 20 mg/kg and 40 mg/kg) can lead to damage for mouse liver.The toxicity of isoimperatorin is stronger than that of imperatorin.

Objective:To explore the relationship between the abnormal adipose tissue around the primary tumor of colon cancer and the prognosis.Methods:From January 2015 to December 2017, 448 patients with colon cancer in Peking University Cancer Hospital were retrospectively and consecutively collected. The scores were assigned to the severity, horizontal and vertical ranges of peritumoral adipose tissue (PAT) abnormalities, and the cumulative scores were calculated to establish the PAT grades from 1 to 3. We defined a score of 0 or 1 as PAT grade 1, a score of 2 as PAT grade 2, a score of 3 as PAT grade 3. The patients were followed up, and the overall survival (OS) and metastasis-free survival (MFS) were recorded. The Kaplan-Meier curve, log-rank test and Cox regression analysis were used to evaluate its impact on prognosis, and the hazard ratio (HR) and 95% confidence interval (CI) were calculated.Results:Among the 448 patients, patients with PAT grade 1, 2, and 3 accounted for 70.1% (314/448), 18.1% (81/448), and 11.8% (53/448), respectively. The Kaplan-Meier survival curve showed that patients with PAT grade 1 had the best OS, patients with grade 3 had the worst OS, and patients with grade 2 were in between, and the difference was statistically significant (χ 2=27.38, P<0.001). There were statistically significant differences between the grades in pairs ( P<0.05). There was no significant difference in MFS between different PAT grades (χ 2=2.85, P=0.240). The results of Cox regression analysis showed that PAT grade was an independent factor affecting the OS. Compared with PAT grade 1, the risk of death in patients with PAT grade 2 and 3 was significantly increased (HR 2.563, 95%CI 1.181-5.561; HR 2.269, 95%CI 1.005-5.121; P=0.034). PAT grade was not an independent factor of MFS ( P=0.253). Conclusion:The PAT grade established based on the degree and scope of abnormal PAT in colon cancer is an independent factor for poor prognosis of colon cancer.

OBJECTIVETo investigate the effect of PC cell-derived growth factor (PCDGF) RNA interference on esophageal squamous carcinoma cells Eca-109 in vitro.

METHODSThe PCDGF-shRNA expression vector was transfected into the Eca-109 cells by liposome. After transfection, the mRNA and protein expressions of PCDGF were detected by RT-PCR and Western-blot respectively. Cell Counting Kit-8 (CCK-8) assay and Boyden chamber method were performed to measure the cell proliferation and invasion ability respectively.

RESULTSThe expression levels of PCDGF mRNA and protein were both decreased in Eca-109 cells transfected with PCDGF-shRNA expression vector (transfection group). Twenty-four, 48 and 72 h after transfection, the cells proliferation in the transfection group was inhibited, and the inhibition rate was 20.4%, 21.1% and 20.9% respectively. The cell proliferation activity in the transfection group was significantly lower than that in the non-transfection group, liposome group and negative vector group (all P<0.05). The number of cell migration in the non-transfection group,negative vector group, liposome group and transfection group was 118.8±12.0, 100.8±9.0, 114.3±4.7, and 53.5±16.3 respectively. The differences were statistically significant between the transfection group and the other 3 groups (all P<0.05).

CONCLUSIONSPCDGF RNA interference can inhibit the proliferation and invasion abilities of esophageal squamous carcinoma cells in vitro. PCDGF gene may be the new target of gene therapy.

Carcinoma, Squamous Cell ; metabolism ; pathology ; Cell Line, Tumor ; Cell Proliferation ; Esophageal Neoplasms ; metabolism ; pathology ; Genetic Vectors ; Humans ; Intercellular Signaling Peptides and Proteins ; genetics ; metabolism ; RNA Interference ; RNA, Small Interfering ; genetics ; Transfection

OBJECTIVETo analyze the auditory capability of preschool children before and after cochlear implantation using meaningful auditory integration scale (MAIS) questionnaire.

METHODSEighty-two prelingually deaf patients participated in this study. They received a cochlear implant at the age of 3 to 6 years and 11 months. The audiologists who were trained for the research used the MAIS questionnaire. Audiologists asked for the parents' answers and recorded all the information about the device using (Q1,2) and the patient's spontaneous auditory behavioural responses including spontaneous alerting to sound Q3 approximately 6 and deriving meaning from sound (Q7 approximately 10). The evaluation was performed before operation and 1 , 3, 6 months, 1, 1.5, 2 years after switch-on.

RESULTSThe scores of question 1a and 1b were not significantly different among the different periods after switch-on. The scores of question 2 to 10 were significantly different among the different periods after switch-on.

CONCLUSIONSConsiderable variability across subjects' auditory ability after cochlear implantation was noted. Most of the patients showed no consistent response to sound in everyday life before implantation. After cochlear implantation, a significant increase in auditory capability occurred. The children demonstrated faster development of device using relative to spontaneous alerting to sound and deriving meaning from sound.

Auditory Perception ; Child ; Child, Preschool ; Cochlear Implantation ; Cochlear Implants ; Female ; Humans ; Male ; Surveys and Questionnaires

OBJECTIVETo investigate the clinical application of Global Osteitis Score System (GOSS). To determine the association between GOSS, Lund-Mackay scores and Lund-Kennedy scores and to investigate the incidence of osteitis in patients with chronic rhinosinusitis (CRS).

METHODSThree hundreds and thirty-four patients with CRS were enrolled prospectively in a large tertiary referral center. The paranasal sinus bone Hounsfield unit (HU), thickness, scope were measured by PHILIPS MxLiteView software. Nasal endoscopy Lund-Kennedy score was analyzed in all patients. Sinus CT scans of all patients were analyzed for Lund-Mackay score and for osteitis using the GOSS. Association between GOSS and Lund-Mackay, Lund-Kennedy was examined.

RESULTSThe incidence of osteitis in patients with chronic rhinosinusitis was from 33.83% to 53.89%. Average GOSS score of osteitis was 7.51 ± 7.27. The highest incidences of osteitis were in the maxillary and anterior ethmoid sinuses. The left anterior ethmoid sinuses was 37.2%. The right anterior ethmoid sinuses was 32.8%. The left maxillary sinuses was 46.1%. The right maxillary sinuses was 42.2%. Global osteitis score were significantly correlated with Lund-Mackay and Lund-Kennedy scores (r value were 0.497 and 0.409 respectively, all P < 0.001).

CONCLUSIONSGOSS can define and evaluate the extent and the severity of osteitis in patients with CRS by using CT, and can also reflect the extent and the severity of CRS.

Adolescent ; Adult ; Aged ; Chronic Disease ; Female ; Humans ; Male ; Middle Aged ; Osteitis ; diagnostic imaging ; Prognosis ; Prospective Studies ; Severity of Illness Index ; Sinusitis ; diagnostic imaging ; Tomography, X-Ray Computed ; methods ; Young Adult

OBJECTIVETo summarize the follow-up outcomes of Draf IIb frontal sinusotomy and it's modified procedures, and to discuss the surgical indications and prognostic factors.

METHODSThirty-two patients treated between 2004 and 2010 were enrolled in this study. There were 15 patients for recurrent frontal inverted papilloma (IP), 6 for mucocele, 4 for recurrent frontal sinusitis, 3 for osteoma, 2 for meningoencephalocele with cerebrospinal fluid rhinorrhea, 1 for meningoencephalocele alone and 1 for acute frontal sinusitis. All patients underwent preoperative paranasal sinus computed tomography (CT) scans. Patients with tumor accepted magnetic resonance imaging (MRI). The patients with meningoencephalocele and cerebrospinal fluid rhinorrhea received magnetic resonance cisternography (MRC). The Draf IIb frontal sinusotomy and it's modified Draf IIb-1-3 procedures were applied endoscopically under general anesthesia mainly by high speed bur and power system. The postoperative CT scan was obtained as a base line for follow-up 1 week after the operation. Postoperative follow-up was performed under endoscope.

RESULTSAmong 19 cases of Draf IIb, 12 were recurrent IP of frontal sinus, 4 were mucocele, 2 were recurrent frontal sinusitis and 1 were osteoma. Five cases received Draf IIb-1, 2 for each recurrent IP of frontal sinus and recurrent frontal sinusitis and 1 for osteoma. Six cases received Draf IIb-2, 3 for meningoencephalocele, 1 for each IP, acute frontal sinusitis and osteoma. Two cases received Draf IIb-3 were mucocele. The follow-up ranged from 8 to 73 months. Twenty-two cases of the frontal nepostium were widely opened, 7 were stenosis and 3 were closed. Revision surgery was seen in 2 cases with IP. All of them had no complications.

CONCLUSIONSThe Draf IIb frontal sinusotomy and it's modified procedures are suitable for complex frontal sinus disease, which can be selected according to pathological and anatomical features, and have a good prospect for clinical application.

Endoscopy ; methods ; Female ; Frontal Sinus ; surgery ; Humans ; Male ; Paranasal Sinus Diseases ; surgery ; Paranasal Sinus Neoplasms ; surgery ; Retrospective Studies ; Treatment Outcome