0.05,respectively).But most inte-restingly,the MMP-9 showed a positive relevance(r=0.686,P

Objective: To study the influences of electrolytic voltages on chromatics of anodized titanium. Methods:Titanium specimens were anodized in 0.5 mol/L sulfuric acid and 0.2 mol/L phosphate acid electrolyte using different voltages. The colors of anodized titanium were measured with a computer controlled spectrophotometer, and then evaluated in the CIE1976L*a*b* uniform color scale and Mussell notation. Result: One given volt created one distinguished color. The chromatic values expressed in L*a*b* were fluctuated in different voltage conditions. The hues in Mussell notation were distributed widely within R,Y,G,P of 5 basic colors and YR,GY,BG,PB of 5 interspace colors in the range of 5 to 80 volts. Anodizing with 10 or 45 volts, the specimen's colors appeared two kinds of brilliant goldish yellow, the former reddish slightly and latter greenish a little. The spectrums of the two colors were in the range of wavelengths of yellow to red. Conclusion: The color of the anodized titanium is dependent upon the volts applied. The goldish yellow may be used to improve the esthetics of titanium dentures.

Objective:To study the diagnostic value of combined detection of IAA,ICA and GADA in the classification of diabetes mellitus.Methods:30 cases of patients with type 1 diabetes who were treated in our hospital from June 2015 to June 2016 were selected as A group,60 cases of patients with type 2 diabetes were selected as B group,50 cases of healthy people were selected as C group.The IAA,ICA and GADA of the three groups were detected by ELISA,and the positive rate of the three groups were compared.Results:The fasting glucose of A group was (10.12± 3.68) mmol/L,B group was (11.23± 3.26) mmol/L,A group and B group were significantly higher than that of C group (P＜0.05),but there was no significant difference between A group and B group (P＞0.05);the positive rates of GADA,ICA and IAA in A group and B group were significantly higher than those in C group (P＜0.05),and the positive rates of GADA,ICA and IAA in A group were significantly higher than those in B group (P＜0.05);the sensitivity and specificity of combined detection of IAA,ICA and GADA in type 2 and type 1 diabetes mellitus were significantly higher than that in the single test (P＜0.05).Conclusions:The combined detection of IAA,ICA and GADA has a high diagnostic value in the classification of diabetes mellitus,which is worth clinical application.

Objective To discuss the method of implant for alveolar bone deficiency.Methods 37 cases of bone deficiency were chosen to use maxillary sinus augmentation,localized management of sinus floor,autologous jaw chips transplantation,alveolar bone distraction.Results All of the implants osseointegration except 1 implant loosed because of improper prosthesis.Conclusion All of the methods above provide can good ways for wider indication of implantation.

OBJECTIVETo explore the incidence, degree, and pattern of rib cartilage calcification in congenital microtia patients, in order to provide reference for harvesting the rib cartilage, sculpturing cartilage framework.

METHODSFrom Jun. 2013 to Nov. 2014, 383 patients (age range, 6-45 years) underwent CT scans of the chest. 11 patients with bony diseases or traumatic history were excluded. The remaining 372 patients were divided by age into four groups as 6-15, 16-25, 26-35, 36-45 years old. Twenty patients (10 male and 10 female) were selected by the order of patient identification number in each age group, thus selecting a total of 80 patients (40 male and 40 female). Retrospective study of CT scans of the chest in 80 patients and the incidence, degree, and pattern of cartilage calcification of the sixth to eighth ribs were noted. A chi-square test is conducted to test whether there are significant difference between the variables through the SPSS 19.0 software.

RESULTSOverall, 40.4% (194/480) cartilage was calcified; female patients (47.50%, 114/240) showed higher frequency of calcification than male patients (33.33%, 80/240, P = 0. 025). Calcification rates of all age groups are 1.7% (2/120), 46.7% (56/ 120), 49.2% (59/120), 64.2% (77/120). Calcification rate of 6-15 years group is lowest in all groups (P < 0.05) while other three groups have no statistical significance (P > 0.05). Calcification rates of the sixth and sevent rib cartilage were higher than those of the eighth rib cartilage in all age groups except 6-15 years group, who had a similar rate of all three ribs. Calcification rate of all three rib cartilage was significantly increased with age. Calcification rates of the amle's rib cartilage and the female's in all age groups are 3.3% (2/60) and 0.0% (0/60) (6-15 years): 33.3% (20/60) and 60.0% (36/60) (16-25 years): 40.0% (24/60) and 58.3% (35/60) (26-35 years), 56.7% (34/60) and 71.2% (43/60) (36-45 years). In 6-15 years group calcification rates of male and female had a similar rate, while female's rates were higher than male's rates in other three groups. Male and females mainly had the granular type of calcification [70.0% (56/80), 63.2% (72/114)].

CONCLUSIONSFemales who are over 16 years old should pay more attention to the possibility of middle-severe calcification before harvesting rib cartilage. These patients should take CT examination if necessary. In addition, the patients who had previous operation, or traumatic history, rib deformity, or spine deformity should select the CT examination.

Adolescent ; Adult ; Age Factors ; Calcinosis ; diagnostic imaging ; epidemiology ; Cartilage Diseases ; diagnostic imaging ; epidemiology ; Child ; Congenital Microtia ; Costal Cartilage ; diagnostic imaging ; Female ; Humans ; Incidence ; Male ; Middle Aged ; Retrospective Studies ; Sex Factors ; Tomography, X-Ray Computed

Abstract: The coronavirus disease 2019 (COVID-19) has become a global public health problem due to its highly contagious nature. This article aims to discuss the current situation of traditional Chinese medicine in the prevention and treatment of COVID-19, and to provide a basis for traditional Chinese medicine research and scientific and standardized treatment of COVID-19.In this article, the etiology, pathogenesis, treatment plan and research progress were summarized, analyzed and concluded by retrieving and reviewing the literature and clinical reports related to the prevention and treatment of COVID-19 with traditional Chinese medicine. Traditional Chinese medicine has obvious effects in the prevention and treatment of COVID-19, improvement of clinical symptoms, and control of disease progression, which had the unique advantages of mild curative efficacy and safety. It has important practical significance in relieving patients' early symptoms and reducing the incidence of progression from mild to severe, and had great potential for development in the treatment of COVID-19. The traditional Chinese medicine intervention and the formulation of diagnosis and treatment plans for the COVID-19 need to be continuously optimized and improved. Scientific and rational application of traditional Chinese medicine to prevent and treat COVID-19, optimization diagnosis and treatment programs, and in-depth exploration of pharmacological mechanisms, especially the provide reference for early intervention of new coronavirus pneumonia by traditional Chinese medicine, the control of disease progression in the middle stage, and improve prognosis in the late stage with Western medicine.

Objective To assess the potential of whole blood IFN-γassay for diagnosing mycobacterium in rhesus macaques.Methods Firstly, basic serum IFN-γconcentrations of TST-negative and -positive rhesus macaques were detected.Then, heparinized whole blood from TST-negative and-positive rhesus macaques was incubated with PBS and 200 IU bovine-PPD ( tuberculin purified protein derivative ) for about 24 h, respectively.The supernatant plasma were harvested and used to determine the concentrations of IFN-γ.The results of plasma IFN-γconcentrations and stimulation index ( SI) were used to analyze the diagnostic potential of the whole blood IFN-γassay.Results The basic serum concentrations of IFN-γfor the TST-positive monkeys were significantly higher than that of the TST-negative macaques, showing a high coefficient of variation.There was no significant effect on the production of IFN-γin the TST-negative macaques.While significantly elevation of IFN-γconcentrations was found in stimulated plasma of TST-positive macaques (P<0.01).The SI of TST-positive macaques was significantly higher than the TST-negative ones.ROC curve analysis revealed that IFN-γconcentrations and SI could be used as evaluation index of whole blood IFN-γassay.Conclusions Based on a small sample experiment we have demonstrated that whole blood IFN-γassay may be one possible auxiliary diagnostic method for tuberculin skin test.

Mechano growth factor (MGF) is an autocrine/paracrine factor and sensitive to mechanical stimulation. MGF can be highly expressed in various soft tissues under physical stimuli, biochemistry stimuli or in damaged situation. MGF may "compensate" the stress for tissue in the processing of tissue repair. MGF can effectively accelerate the repair of the soft tissue by promoting the proliferation, migration and differentiation of cells. This paper summarizes the MGF expressions in different soft tissues and their functions in soft tissue repair. The paper also discusses current problems and challenges in using MGF to repair the soft tissue.
Cell Differentiation ; Cell Proliferation ; Humans ; Insulin-Like Growth Factor I ; physiology ; Soft Tissue Injuries ; Wound Healing

Objective: To study the clinic and pathological features of leukoplakia of the larynx, and reduce canceration rate. Method: Seventy-four postoperative patients of leukoplakia of the larynx were followed up for four years by telephone or clinic service. Result: None of eighteen cases of pure leukoplakia was recurrence. Fifty-six ca-ses were leukoplakia with epithelial dysplasia histologically. Seven out of fifty-six postoperative cases occurred hoarseness; three out of fifty-six postoperative cases recured, and accepted twice or more operations successively; three out of fifty-six postoperative cases occurred canceration. Conclusion:Operation is the main means for the treatment of leukoplakia of the larynx, and the effect is comparatively well. The patients with histological epitheli-al dysplasia should be pay great attention because of their higher canceration rate, and enlarged operation ranges appropriately with the patient consent could effectually prevent recurrence or canceration during the early lesions. Close observation is important for these patients.

In order to develop a combined live vaccine that will be used to prevent against porcine parvovirus (PPV) and Pseudorabies virus (PRV) infection, the VP2 gene of PPV was inserted into the transfer vector plasmid pG to produce the recombinant plasmid pGVP2. The plasmid pGVP2 and the genome of PRV HB98 attenuated vaccine were transfected by using lipofectamine into swine testis cells for the homologous recombination. The recombinant virus rPRV-VP2 was purified by selection of green fluorescence plaques for five cycles. 6-week-old female Kunming mice were immunized intramuscularly with attenuated PRV parent HB98 strain, commercial inactivated vaccine against PPV, recombinant virus, DMEM culture solution. The injections were repeated with an equivalent dose after 2 weeks in all of the groups, and then challenged with the virulent PRV NY strain at 7 weeks after the first immunization. The recombinant virus rPRV-VP2 was successfully generated, and the recombinant virus could effectively elicite anti-PPV and PRV antibody and significant cellular immune response as indicated by anti-PPV ELISA and HI, PRV-neutralizing assay and flow cytometry. The challenge assay indicated that recombinant virus could protect the mice against the virulent PRV challenge. These results demonstrated that the recombinant virus can be a candidate recombinant vaccine strain for the prevention of PRV and PPV.
Animals ; Antibodies, Viral ; immunology ; Antigens, Viral ; administration & dosage ; genetics ; immunology ; Capsid Proteins ; administration & dosage ; genetics ; immunology ; Female ; Gene Expression ; Genetic Vectors ; genetics ; metabolism ; Herpesvirus 1, Suid ; genetics ; metabolism ; Mice ; Parvovirus, Porcine ; genetics ; immunology ; Swine ; Swine Diseases ; immunology ; prevention & control ; virology ; Viral Vaccines ; administration & dosage ; genetics ; immunology