Cell Line, Tumor ; Cystadenocarcinoma, Serous ; pathology ; Female ; Humans ; Ovarian Neoplasms ; pathology

Background Corneal contact lens have been widely used in vitrectomy.The corneal ring accompanying with the contact lens therefore is also much concerned.We designed a sutureless silicone corneal ring to renew a suturing?ring,but its detection of physicochemical properties and hiocompatihility is necessary for clinical application. Objective This study was to investigate the physicochemical properties and biocompatibility of the newly designed sutureless silicone corneal ring. Methods The Shore hardness,tensile stress-strain tests,tear strength,transmittance and the haze of the novel silicone ring were tested.The bioeompatibility of sutureless silicone corneal ring to corneal epithelial cells was evaluated by determining cytotoxieity.The ring was implanted into the counjunctival soc of 6 Japanese white rabbits for 4 hours to determine its stimulation response by measuring the area of corneal fluorescence staining,and then the ring was placed on the skin surface of 6 SD rats for 4 hours to assess the presence of allergic reaction by calculating the swelling area of skin. Results The new sutureless silicone corneal ring showed good physiological features with a Shore hardness of 63.4 degree,tensile strength more than 5.86 MPa,elongation＞100%and tear strength 34 kN/m.The transmittance of 3 legs in the ring was more than 93%;however,the haze was less than 0.1%.Cytotoxicity of the ring was 3.1 1×10-6%.No obvious corneal fluorescence staining was seen at any time point in all the rabbit eyes in the stimulating test.Furthermore,there was not any skin swelling in various time points in all the SD rats in the allergy test. Conclusion The physicochemical properties of the silastic used in our newly designed sutureless silicone cornea ring can meet the demands of the ring.The biological evaluation complies with the ISO i0993-1 international standards and meets the demands of the organism.Thus,it is all ideal material to use in constructing the corneal ring.

Objective To explore the relationship between tumor necrosis factor(TNF)-? promoter G238A,G308A and interferon(IFN)-?+874A/T polymorphism and susceptibility to cytomegalovirus(CMV) hepatitis.Methods A TaqMan fluorescence polymerase chain reaction(PCR) in the IFN-?+874A/T and TNF-? gene promoter region single nucleotide polymorphism was tested in the subjects,including 87 infants with CMV hepatitis and 89 children without CMV hepatitis.Results No evident difference of TNF-? +238G/A and+308G/A allele frequency was found between infants with CMV hepatitis and controls.The cases of IFN-?+874 AA,AT and TT genotype were 64,20,3 cases in the infant CMV hepatitis group,and 45,26 and 18 cases in the control group,respectively.There was significant difference in IFN-?+874 allele genotype and frequency between infants with CMV hepatitis and the control group(P=0.001,P

Diseases of glucose and lipid metabolism disorder,presented rather complicated pathological mechanism,often with clinical pattern of multiple concurrent diseases.Therefore,the traditional single-disease based on treatment methods need improving.In view of plenty of clinical practice,theatrical and fundamental researches,the pathological mechanisms of some chronic disorders,such as hyperlipidemia,nonalcoholic fatty liver disease,type 2 diabetes,hypertension,atherosclerosis and severe cardiovascular complications,resulted from the impairment in the metabolism of glucose and lipid were investigated using the method of integrated Chinese and western medicine.Overall,the features of these diseases and their common characteristics were discovered,and accordingly we defined the new concept of glucolipid metabolic disease (GLMD) and put forward the concept of pivot liver of metabolic regulation system.In addition,we developed the therapeutic strategy of modulating liver,starting pivot and cleaning turbidity,for the comprehensive and integrated treatment and prevention of these diseases.The theory of GLMD shared the critical characteristics with precision medicine,taking its own specialty.Finally,the content and approaches for the research of GLMD were proposed,and some essential and core fields in the precision medical research for GLMD were profoundly analyzed and prospected.

Objective To optimize the experiment conditions of surface-enhanced Raman spectroscopy detection of serum fingerprint spectra.Methods Normal human serum was used as the sample and Ag nanoparticles as the active substrate.The enhanced signals of different optimized experiments were obtained , including serum dose(2.5 to 500 μl), incubation time(10 to 30 minutes) temperature(4℃,room temperature and 37℃),and different treatment(extraction and protein removal).Results and Conclusion Serum doses should not exceed 50μl.The ratio should range from 1∶1 to 5∶1, the incubation time is from 10 to 30 minutes, and the incubation temperature from 4℃ to 37℃.The signals of samples directly mixed with an active substrate are stronger than those of samples which are extracted or protein removed .

Recently surface-enhanced Raman spectroscopy (SERS) has been widely used in physics, chemistry and bio-medical science.Due to its high sensitivity and specificity,SERS is often used to detect changes in serum components in humans.Various biomolecules in human serum, such as proteins, lipids and nucleic acids, have their own distinctive raman spectroscopy so that different raman shift, band intensity and width reflect different metabolic abnormalities of cells at the molecular level in human serum.In this paper we described the general situation of SERS and summarized the latest research progress in a variety of diseases of human serum.Prospects of developmenls are also outlined.

Objective: By taking the holism and differentiation concepts of traditional Chinese medicine (TCM) as the guidance, physical, mental and workplace factors were recruited in the observation of depression in employees, and were systematically classified to establish a workplace-related Liver Meridian-depression scale, for providing an evaluation index for depression in employees. Methods: NVIVO 11 software was adopted to assort ancient TCM classics. Based on the holism and differentiation concepts of TCM and well-developed scales, the item pool was determined via brain storm and screened by Delphi method after classified; a Wechat questionnaire was handed out 240 times via the online system 'Wen Juan Xing', and the results were statistically analyzed by the SPSS 17.0 version software. Results: Five dimensions consisting of 80 items were obtained after classification, and 60 items were selected by Delphi method; a total of 216 questionnaires were returned and the return rate was 90%. Of which, 215 questionnaires were valid ones, and the valid rate was 99%. By exploratory factor analysis (EFA), 44 items were obtained, and the aggregate split-half reliability coefficient was 0.922. The Cronbach's alpha coefficient for the five dimensions, i.e. Liver Meridian, relevant meridians, basic psychological activities, work cognition and emotional reactions, was respectively 0.841, 0.842, 0.914, 0.836 and 0.839, indicating a content internal consistency. The score of each item was highly correlated with the corresponding dimension, and the intercommunity was between 0.474 and 0.801. Nine factors were generated, 2 in the dimension of Liver Meridian, 3 in the dimension of relevant meridians, 2 in the dimension of basic psychological activities, 1 in the dimension of work cognition, and 1 in the dimension of emotional reactions, and the load of each factor was between 0.438 and 0.859. The reliability and validity of the scale were well examined. Conclusion: The scale can be applied to evaluate the qi activities of Liver Meridian and depression symptoms related to workplace.

Objective To determine the effect of bacille Calmette-Guerin-polysaccharide nucleic acid (BCG/PSN)on 2,4-dinitrochlorobenzene(DNCB)-induced atopic dermatitis-like skin lesions in Nc/Nga mice.Methods Fifteen mice were randomly and equally classified into 3 groups,i.e.,control group receiving topical acetone on foot pad and abdomen and intraperitoneal injection of physiological saline,model group receiving topical 5% DNCB solution and intraperitoneal injection of physiological saline,treatment group receiving 5% DNCB solution and intraperitoneal iniection of BCG/PSN,and all drugs were used every other day for 7 weeks.Further more,0.1% DNCB was topically applied on the ear and neck of Nc/Nga mice once a week from week 2 to week 7.The effects of BCG/PSN were evaluated by ear thickness,skin histopathology and immunological parameters.Results Repeated application of DNCB caused the development of eczematous dermatitis in mice.Mice in model group chnieally manifested skin dryness,erythema,edema and erosion with histopathological changes including dermal and epidermal thickening,hyperkeratosis,and inflammatory infiltration.The serum levels of IL-4 and IrE in model group were significantly higher than those in control group[(174.72±12.64)μg/L vs (17.32±3.56)μg/L,(91.49±6.32)ng/L vs (83.95±6.63)ng/L,both P<0.05].Increased serum IL-12 and IFN-γ and decreased serum IgE were observed in treatment group compared with the model group[(122.10±4.64)ng/L vs (20.14±6.15)ng/L(73.89±2.39)ng/L vs (51.53±3.45)ng/L, (84.27±9.35)μg/L vs (174.72±12.64)μg/L, all P<0.05].Conclusion BCG/PSN might be beneficial for the treatment of atopie dermatitis-like skin lesions in Nc/Nga mice by enhancing the secretion of IL-12 and IFN-γ and suppressing the synthesis of IgE.

Objective To investigate the effect of costimulatory molecules 4-1BB/4-1BBL on T cell activation with systemic lupus erythematosus(SLE)patients.Methods The expression of NF-kB mRNA and p38 MAPK mRNA of T cells with 20 SLE patients and 20 normal controls before activation,after activation and blocked bv 4-1BB/4-1BBL were detected bv RT-PCR.The protein levels of p-p38 MAPK and NF-kB were detected by Western blot.Results The expression of NF-kB mRNA and p38 MAPK mRNA and the protein expression of NF-kB and p-p38 MAPK of T cell with SLE patients were higher than that of normal controls(P＜0.01).There were more expression of NF-kB mRNA,p38 MAPK mRNA,NF-kB protein and p-p38 MAPK protein of T cell with SLE patients stimulated by anti-CD3 monoantibody(P＜0.01).In anti-4-1BB monoantibody blockage group,there were decreased expression of p38 MAPK mRNA and p-p38 MAPK protein(P＜0.01).but not the decreased NF-kB mRNA and protein expression.Conclusion Costimulatory molecule 4-1BB plays a critical role in T cell activation of SLE by p38 MAPK signal pathway.

Objective To investigate the characteristics of the preoperative and postoperative urodynamical parameters of women with uterine cervical carcinoma after radical hysterectomies.Methods Forty-six women had uterine cervical carcinoma at stage Ⅰ b or Ⅱ a.Complete pre-and postoperative urodynamie follow-ups were conducted for each patient.Results Twenty-six women(57%)who had preoperatively normal urinary tract function needed to void by abdominal straining after radical surgery.After the radical hysterectomy,the postvoid residual volume[(205?201)vs(5?3)ml,P