Adult ; Aged ; Cone-Beam Computed Tomography ; Dental Implantation, Endosseous ; methods ; Female ; Humans ; Hydrostatic Pressure ; Male ; Maxillary Sinus ; diagnostic imaging ; surgery ; Middle Aged ; Piezosurgery ; methods ; Sinus Floor Augmentation ; methods ; Tooth Loss ; surgery

Objective To study the effect of sodium hyaluronate(SH) on cornea preservation to provide a basis for eyes banks cornea preservation. Methods SH was applied in the short-term and middle-term cornea preservation. The preservation effect was evaluated by corneal morphology, trypan blue-alizarin red staining, activity assay of SDH and G-6-P enzymes, and ultrastructural observation of corneal endothelium. Results The above indices were obviously better in the experiment group than in the control group (P

Objective To analysis the genetic context of armA gene identified in different species .Methods BLASTN searches were used to analysis sequences harboring armA submitted to the GenBank database .Results armA gene was mostly found down-stream of ISCR1 element and was most commonly detected in Enterobacter spp ..Its flanking sequences were highly conserved in Enterobacter spp ..Conclusion The genetic context of armA gene reported in different species scattered in different geometrical lo-cations share some common characteristics .

Objective To investigate the risk factors of mild renal impairment in cerebral infarction patients.Methods One hundred and fifty patients with cerebral infarction were enrolled from June 2012 to June 2013,and all patients received cranial magnetic resonance imaging at the first week.The clinical data of patients were recorded in detail,24 h microalbuminuria (mALB) was detected,renal function was assessed.According to mALB,the patients were divided into normal renal function group (105 cases) and mild renal dysfunction group (45 cases).Clinical risk factors between 2 groups were compared,and multivariate regression analysis was done.Results Age in mild renal dysfunction group was greater than that in normal renal function group [(67.04 ±9.37) years vs.(63.01 ± 11.18) years],the incidence of hypertension and multiple lacunar infarction were higher than those in normal renal function group[57.8％ (26/45) vs.33.3％ (35/105),57.8％ (26/45) vs.22.9％ (24/105)],leukoaraiosis grade was higher than that in normal renal function group,there were significant differences (P ＜ 0.05 or ＜ 0.01).Logistic regression analysis found that hypertension (OR =1.04 1,P =0.045) and leukoaraiosis (OR =2.048,P =0.000) were independent risk factors for cerebral infarction patients with mild renal impairment.Conclusions The incidence of mild renal impairment is higher in cerebral infarction patients,and is closely related to hypertension and leukoariosis.Early detection of 24 h mALB in cerebral infarction patients has important clinical significance.

Clinical data of 2 children with cystic fibrosis (CF) and Pseudomonas aeruginosa infection in the Department of Pediatrics of Sichuan Provincial People′s Hospital from April 2018 to June 2019 were retrospectively analyzed.Patient 1 was an 11-year-old girl with no history of recurrent respiratory infections. Pseudomonas aeruginosa was found in the first sputum culture.A large number of yellow and white secretions were visible under repeated fiberoptic bronchoscopy.Chest CT showed multiple spots and tree-in-bud signs around the bronchi of both lungs. CFTR gene test results revealed 3 heterozygous mutations: c.2909G>A (chr7: 117246728), c.*133T>A (chr7: 117307295) and c. *125delT (chr7: 117307285). The other patient was a 7-year-old boy with a history of recurrent respiratory infections.His parents were close relatives.Multiple cultures of sputum and bronchoalveolar lavage fluid of the boy were Pseudomonas aeruginosa, and chest CT suggested dilation and inflammation in bronchi of both lungs.Gene detection showed that the c. 380T>G homozygous mutation at chromosome chr7-117171059 resulted in an amino acid change p. leu127stop (nonsense mutation). This article suggests that CF should be considered for Pseudomonas aeruginosa infected children having signs of bronchiectasis on chest CT and a large number of secretions under bronchoscopy.Besides, it is necessary for such kind of children to perform genetic testing in time to confirm the diagnosis as soon as possible.

ObjectiveTo compare the content difference of total flavonoid, total polyphenol and scavenging activity to DPPH free radical ofDracocephalum tanguticum Maxim (DtM) before and after roasted;To explore the relationship between the contents of active components and antioxidant activity in the DtM before and after roasted.MethodsThe crude and roasted DtM were extracted with 75% ethanol as the solvent. The contents of total flavonoid and total polyphenol were detected by NaNO2-Al (NO3)3-NaOH and Folin-ciocalteu methods, respectively. The antioxidant abilities were evaluated by 2, 2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activity. ResultsThe content of total flavonoids in the crude DtM (6.442%)the roasted DtM (0.628), and free radical scavenging efficiency of the crude DtM (1181.335)

Aim Toinvestigatetheeffectofbencyclo-quidium bromide(BCQB)on mucus MUC5AC expres-sion induced by lipopolysaccharide in cultured human nasalepithelialcells(HNECs).Methods Primary culture of human nasal epithelial cells (HNECs)was randomly divided into control group (C,with no treat-ment),LPS group (LPS,with LPS 1 mg · L-1 added in),BCQB low dose group(BCQBL,with LPS 1 mg· L-1 and BCQB 10 -8 mol·L-1 added in),BCQB mid-dle dose group(BCQBM,with LPS 1 mg·L-1 and BC-QB 10 -7 mol·L-1 added in),BCQB high dose group (BCQBH,with LPS 1 mg·L-1 and BCQB 10 -6 mol· L-1 added in)and ipratropium bromide group(IB,with LPS 1 mg·L-1 and IB 10 -6 mol·L-1 added in).Af-ter incubation at 37 ℃with 5% CO2 for 24 h,the ex-pression of MUC5 AC mRNA was detected with Real-time PCR and the expression of MUC5 AC protein in HNECs was detected with Western blot,while the ex-pression of MUC5 AC protein in supernatant was detec-tedwithELISAineachgroup.Results Ascompared with control group,the expression of MUC5 AC mRNA and protein increased significantly in LPS group (each P<0. 01 ).As compared with LPS group,the expres-sion of MUC5 AC mRNA and protein decreased signifi-cantly in each group of BCQB(P<0. 01,P<0. 05), and there was no statistical difference between BCQB high dose group and control group (each P>0. 05 ). Conclusion Bencycloquidiumbromidecansuppress MUC5 AC expression induced by LPS in cultured hu-man nasal epithelial cells,indicating that BCQB may be a new drug for nasal mucous hypersecretion diseases.

Objective To investigate the hypoglycemic and antioxidation effects of the red alga Porphyridium cruentum in diabetic mice induced by alloxan. Methods The diabetic models were established by intravenous administration of alloxan 70 mg?kg~(-1).Then the diabetic mice randomly were divided into four groups, Among them ,two groups were given ig the algal biomass 600,1200mg?kg~(-1) ,respectively. After 18 days, the contents of blood glucose, plasma lipids and the activities of SOD were detected. Results Compared with the diabetic model, the algal biomass 600,1200mg?kg~(-1) could significantly decrease the blood glucose.A trend towards lower plasma triglyceride level was observed in test groups. In addition the activity of plasma SOD was significantly enhanced in high dose group. Conclusion Porphyridium cruentum could reduce the level of blood glucose and effectively enhance the ability of antioxidation in the diabetic mice induced by alloxan.

Objective To investigate the roles of sodium hyaluronate (SH) in the preservation of corneas. Methods Referred to M-K prescription Preserving liquid MMK was employed as the control. Different concentrations of SH added into the preserving liquid MMK were employed as the experiment groups: group Ⅰ (0.05% SH), group Ⅱ (0.03% SH), and group Ⅲ (0.01%). At 3, 5, 7, and 10 d after preservation in the preserving liquids, the ultrastuctures of the rabbit corneas were observed by scan electron microscopy and light microscopy, the corneas were stained by typan blue alizarin red staining, and the activities of SDH and G-6-P were detected by enzymohistochemistry. Results There was difference in macrostructure of the corneas in each group. Morphological changes in group Ⅰ were not obvious, but those in the control group were remarkable. Trypan blue-alizarin red staining indicated the highest vitality of corneal endothelial cells (CECs) in group Ⅰ, but the lowest in the control group. In addition, the activities of SDH and G-6-P in each group were significantly different. Conclusion The addition of SH in reformed M-K liquid can prolong the duration of the mid-term preserved corneas and the protective effect is in a dose-dependent manner.

With the development of therapeutic monoclonal antibodies, the therapeutic antibodies have increasingly dominated the global pharmacy market in recent years, which are concentrated on the treatment of carcinoma, transplant rejection, auto-immune diseases etc. Meanwhile, the therapeutic antibodies could be categorized on the humanized proportion into several different types, such as murine-derived antibody, chimeric antibody, humanized antibody and human antibody. Herein, we focused both on antibody research hot spots and humanized anti-tumor antibody drugs. Moreover, in accordance with the classical examples of humanized anti-tumor antibody drugs approved by relevant authorities worldwide, we explained the research status and situation from both the humanized technologies and production of humanized antibodies. Additionally, it seemingly rational and reasonable to demonstrate the trend of further humanized anti-tumor antibody drugs in the prospect of the present situation either domestic or overseas.