Hyperhomocysteinemia is one of the independent risk factors of cerebrovascular diseases. Methylenetetrahydrofolate reductase (MTHFR) C677T gene mutation often results in the increase of plasma homocysteine levels, but the relationship between the genetic polymorphism of MTHFR and cerebrovascular diseases is not significant.

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

BACKGROUND: Electrostatic layer-by-layer (LbL) self-assembly is a simple, effective and novel approach to carrying macromolecules into microcapsule carriers.OBJECTIVE: To prepare chitosan (CS) microcapsules to control the releasing of heparin (Hep) by LbL.METHODS: CS microspheres were fabricated by a sodium sulfate-based precipitation process and then used as positively charged templates for polyelectrolyte multilayer coatings to carry heparin by the LbL self-assembly technique. The polycation was CS and the polyanion was Hep. The microcapsule was formed via coating {CS/Hep}3 on CS hydrogel template. The microcapsules composed of {CS/ Hep}3 on CS hydrogel templates were confirmed by fluorescence inverted microscopy, confocal laser scanning microscopy and laser particle size analysis. The assembly of polyelectrolyte layers on CS hydrogel microspheres was monitored by Zeta Potential Analyzer.RESULTS AND CONCLUSION: The resulting microcapsules were about 1 μm in average diameter, and allowed spontaneous loading of heparin through electrostatic interaction, with the encapsulation efficiency and carrying capacity of 83.8% and 3.05%, respectively.

Medicine, Chinese Traditional ; Mind-Body Relations, Metaphysical

Cyclin-Dependent Kinase Inhibitor p16 ; metabolism ; Female ; Genes, p16 ; Genes, p53 ; Humans ; Hysterectomy ; methods ; Ki-67 Antigen ; metabolism ; Leiomyoma ; genetics ; metabolism ; pathology ; surgery ; Leiomyosarcoma ; genetics ; metabolism ; pathology ; surgery ; Prognosis ; Smooth Muscle Tumor ; genetics ; metabolism ; pathology ; surgery ; Tumor Suppressor Protein p53 ; metabolism ; Uterine Neoplasms ; genetics ; metabolism ; pathology ; surgery

Objective To observe the cell apoptosis, oxidative stress reaction and expressions of Bcl-2 and Bax in kid?ney of dietary zinc deficiency mice during growth period, and discuss the mechanism of renal cell apoptosis induced by zinc deficiency. Methods Thirty weaning male mice were randomly divided into zinc-deficient group and zinc-adequate group, and 15 mice for each group. Zinc-deficient group was fed with zinc deficiency diet (0.85 mg/kg), while zinc-adequate group was fed with enough zinc diet (30 mg/kg). The TUNEL method was applied to observe the cell apoptosis, and the apoptotic in?dex was measured. The content of SOD and MDA were detected to observe the oxidative stress reaction in kidney. The ex?pression levels of Bcl-2 and Bax protein were detected by Western blot assay. Results Compared with zinc-adequate group, the cell apoptosis and oxidative stress reaction were increased in zinc-deficient group. The expression of Bcl-2 de?creased, and the expression of Bax increased. The ratio of Bcl-2 and Bax declined in kidney of zinc deficiency mice. Conclu?sion Diet zinc deficiency in growth period may result in the decreased antioxidase, the increased oxidative stress reaction, and the changed Bcl-2 and Bax expression, which promote the occurrence of cell apoptosis in kidney.

Objective To investigate the effect of Xuesetong Dripping Pills combined with alprostadil intervention on serum brain natriuretic peptide in elderly patients with chronic congestive heart failure.Methods In 74 patients with chronic congestive heart failure, were randomly divided into observation group and control group, 37 cases in each group.Control group received conventional method.The observation group received Xuesetong Dripping Pills combined with alprostadil on the basis of conventional therapy.Compared the efficacy, the heart function level, walking test and level of serum brain natriuretic peptide between two groups after 15 days’ treatment.Results The total efficiency of observation group was 94.59%, which was higher than 75.68% in the control group, the difference was statistically significant(P<0.05).After treatment, the heart function level improvement in the observation group was better than the control group, the difference was statistically significant(P<0.05).After treatment, 6 min walking test in the observation group(316.4 ±20.7) m, was better than the control group(303.5 ±28.1) m, the difference was statistically significant(P<0.05).The level of serum brain natriuretic peptide in the observation group(608.9 ±158.1)ng/L, was lower than that of the control group(792.7 ±179.4) ng/L, the difference was statistically significant ( P <0.05 ) .Conclusion Xuesetong Dripping Pills combined with alprostadil has good curative effect in the treatment of chronic congestive heart failure,can relieve the abnormal increase of serum brain natriuretic peptide, improve blood circulation and heart function.

Objective To study the clinical value of detection of peripheral blood natural killer(NK) cells subsets in patients with malignant hematological diseases.Methods A total of 100 patients with malignant blood disease were enrolled from March 2014 to April 2016 as the observation group,including 50 cases in acute stage and 50 cases in mild stage.At the same time,100 health subjects were enrolled as the control group.The number of NK cells in peripheral blood and the changes of subgroups were compared.Results The number of NK cells in the different groups were compared,the absolute numbers and relative numbers of NK cells in the acute phase of leukemia and lymphoma were much lower than those in the control group(P<0.05).While the absolute number and relative number of NK cells in mild stage of leukemia and lymphoma were higher than that in acute phase(P<0.05).After treatment,the absolute number and relative number of NK cells in patients with leukemia and lymphoma were higher than before treatment(P<0.05).Before treatment,levels of CD56bright and CD56dim in patients with leukemia and lymphoma were statistically different with those of control group(P<0.05).After treatment,CD56bright and CD56dim levels were significantly improved in both groups(P<0.05).Conclusion The number of peripheral blood NK cells in patients with hematological malignancies could be reduced,and the cells function might be compromised.Detection of NK cell subsets could be with guiding significance in the treatment of malignant hematologic disease.

This study plans to prepare lipid bilayer-coated mesoporous silica nanoparticles (LMSNs) which are pH sensitive with core-shell structure to improve the tumor cell lethality of antitumor drug. The lipid coated mesoporous silica nanoparticles loaded with irinotecan (CPT-11) (CPT-11-LMSNs) were prepared by hot water-film hydration method, and the characterized its morphology, particle size and release in vitro. Meanwhile, the intracellular uptake and cell toxicity of CPT-11-LMSNs and intracellular accumulation of CPT-11 were evaluated on human breast carcinoma cell line (MCF-7). The results indicated that the mean diameter of the spherical LMSNs was (120.27 +/- 5.91) nm. The slow release in simulated normal physiological conditions and a rapid release under simulated intracellular condition demonstrated the pH sensitivity of CPT-11-MSNs in vitro. Moreover, the CPT-11-LMSN could improve the intracellular CPT-11 cumulant 2.1 times and reduce half maximal inhibitory concentration (IC50) values of CPT-11 1.4 times compared with CPT-11-MSNs, demonstrating a stronger cell lethality.

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)