Ethanol ; Fixatives ; Formaldehyde ; Humans ; Immunohistochemistry ; methods ; Time Factors ; Tissue Fixation ; methods ; standards

Breast Neoplasms ; pathology ; Carcinoma, Ductal, Breast ; pathology ; Humans ; Medical Records ; standards

Objective To investigate the effect of rosiglitazone on neointima and inflammatory factor after carotid artery injury of rats. Methods A total of 60 SD rats were divided randomly into 3 groups: the control group, the surgery group and the resiglitazone therapeutic group. The left common carotid arteries were injured by balloon in the surgery group and the therapeutic group. Rosiglitazone was administrated intragastricly to therapeutic group. The plasma tumor necrosis factor-? (TNF-?) and interleukin-6 (IL-6) levels were detected with radioimmunoassay at 4h, 1 and 7d after the operation. After 2 weeks, the injured vessels were stained by HE and immunity histochemistry method,then observed with microscope. Neointimal area (NIA), internal elastic lamina area (IELA), stenosis index (SI) and optical density value of protein expression of NF-?B were calculated. Results Rosiglitazone inhibited the neointima of injured vessels, decreased the protein expression of NF-?B and reduced plasma TNF-? and IL-6 levels. Conclusion Rosiglitazone can inhibit the inflammatory reaction of injured vessels and lighten the restenosis of injured vessels.

0.05). It suggested that the 3 D quantitative measurement is a useful technique for the diagnosis of diseases in the base of the middle cranial fossa region,so that it is useful for surgical planning.

Wogonin is a kind of natural flavonoid compound. According to findings in the latest studies, wogonin shows a wide range of antitumor effects, with the characteristics of multi-pathway, multi-link and multi-target, such as promoting tumor cell apoptosis through ROS or Ca(2+)-mediated signal paths, enhancing tumor cytotoxicity by TNF-α and TRAIL, blocking tumor cell cycle, inhibiting tumor angiogenesis and resisting cancer synergistically with chemotherapeutic drugs. Moreover, Wogonin could enhance body immune function by enhancing immune cell infiltration, regulating the immune cell phenotype and promoting relevant cytokine secretion. In this paper, the authors summarized the advance in studies on wogonin's antitumor and immunomodulatory effects.
Animals ; Antineoplastic Agents ; therapeutic use ; Apoptosis ; drug effects ; Drugs, Chinese Herbal ; therapeutic use ; Flavanones ; therapeutic use ; Humans ; Immunologic Factors ; therapeutic use ; Neoplasms ; drug therapy ; immunology ; physiopathology ; Tumor Necrosis Factor-alpha ; genetics ; immunology

Long-term treatment with an agonist of peroxisome proliferator-activated receptor (PPAR)-γ is associated with bone fractures in the clinical practice. However, the mechanisms underlying the fractures are not fully understood. This study was aimed to examine the effect of rosiglitazone (an agonist of PPAR-γ) of different doses on the proliferation, differentiation, and transforming growth factor beta 1 (TGF-β1)-induced expression of connective tissue growth factor (CTGF) in primary rat osteoblasts in vitro. Osteoblasts were isolated from newly born SD rats and treated with different doses of rosiglitazone (0-20 μmol/L). The proliferation and differentiation of osteoblasts were measured by MTT assay and NPP assay, respectively. The expression of CTGF was determined by RT-PCR and Western blotting. The results showed that most isolated osteoblasts displayed strong alkaline phosphatase (ALP) activity and treatment with different doses of rosiglitazone did not affect their proliferation, but significantly inhibited the differentiation of osteoblasts in a dose-dependent manner. Moreover, treatment with different doses of rosiglitazone significantly reduced the TGF-β1-induced CTGF mRNA transcription and protein expression in a dose-dependent manner in rat osteoblasts. It was concluded that the activation of PPAR-γ may inhibit the differentiation of osteoblasts by reducing the TGF-β1-induced CTGF expression in vitro.

Objective To investigate the expression of human papillomavirus (HPV) L1 protein in lesional tissue of condyloma acuminatum and its clinical significance.Methods Forty-three patients with condyloma acuminatum were included in this study,and received CO2 laser therapy.Tissue samples were resected from the lesions of these patients at their first visit before treatment.Immunohistochemistry was used to determine the expression of HPV L1 protein in these samples.Follow up was carried out once every 2 weeks for 3 months to assess the recurrence rate and frequency in these patients after treatment.Results HPV L1 protein was detected in 83.72％ (36/43) of these tissue samples.The expression rate of HPV L1 protein decreased sequentially from patients infected with HPV 6/11,patients with both HPV 6/11 and 16/18,to those with HPV16/18 (x2 =17.90,P ＜ 0.01).During the 12 weeks of follow up,the recurrence rate was 69.77％ (30/43) with the average number of recurrence of 2.16.There was a sequential reduction in the recurrence rate and number from patients with strong expression of HPV L1 protein,to those with moderate expression,slight expression and negative expression (x2 =8.02,46.92,P ＜ 0.05 and 0.01,respectively).The expression intensity of HPV L1 protein was negatively correlated with the recurrence rate and frequency (rs =-0.429,-0.696,respectively,both P ＜ 0.01).Conclusion HPV L1 protein may serve as a helpful molecular biomarker for the prediction of prognosis and recurrence of condyloma acuminatum.

The microbial transformation of buflomedil by Cunninghamella blakesleana AS 3.153 was studied, as well as a microbial model which can be used to mimic metabolism of buflomedil in mammal was established. Experiments were conducted to screen the capabilities of four strains of Cunninghamella species to transform buflomedil, in which C. blakesleana AS 3.153 was selected for a preparative biotransformation. Furthermore, the microbial model was established based on the transformation condition optimization. The parent drug and its metabolites produced by C. blakesleana AS 3.153 were detected by liquid chromatography-mass spectrometry method and three metabolites were identified while two of them were new found metabolites. Two major metabolites, para-O-desmethyl buflomedil and 12-C-oxidated buflomedil, were isolated by semi-preparative HPLC. Based on the comparison between different species, the microbial transformation of buflomedil by C. blakesleana AS 3.153 is more similar to the metabolism of buflomedil in human and Beagle dog than that in rat.

BACKGROUND:When peri-implantitis occurs, the levels of interleukin-17 in the peri-implant sulcular fluid and soft tissues are significantly increased, and there is a positive correlation with the depth of the peri-implant probing. However, because of the dual effects of bone absorption and protection, the function of interleukin-17 in peri-implantitis remains controversial, which should be further studied. OBJECTIVE:To retrospectively analyze the correlation between peri-implantitis and interleukin-17. METHODS: The first author searched Wanfang, CNKI and Medline databases from 1991 to 2014 by using key words of “dental implants, peri-implantitis, periodontitis, Th17 cels, interleukin-17, cytokines” in Chinese or English. The functions of bone destruction and protection of interleukin-17 in peri-implantitis were reviewed, and interleukin-17 expression and correlation with the peri-implantitis were detected. RESULTS AND CONCLUSION:According to the inclusion and exclusion criteria, 46 articles from 241 articles are selected. The results show that, noninvasive detection of the variation of interleukin-17 levels in peri-implant sulcular fluid or blood is conducive to the monitoring of early diagnosis and treatment of peri-implantitis. At present, most researches show the relationship between interleukin-17 and peri-implantitis, and there is a positive correlation between interleukin-17 and peri-implant probing depth. But other researches suggest that interleukin-17 acts as protector for bones, and there is no statistic significance in the level of interleukin-17 receptor gene in chronic peri-odontitis and healthy subjects. Therefore, the correlation between peri-implantitis and interleukin-17 remains to be further studied.

Objective To explore the differentiation potential of bone marrow stromal cells (BMSC) to enteric neuron in vitro and to seek proper induction methods.Methods BMSC were harves- ted from male rats and cultured in DMEM supplemented with 20% fetal bovine serum,and characterized by flow cytometry.At passage 6,BMSC were pre-induced by basic fibroblast growth factor (bFGF,10 ng/ml) for 24 h,then induced in two groups:glial cell-line derived neurotrophic factor (GDNF) group, 10 ng/ml GDNF in fetal gut condition medium (FGCM) for 10 d.Vitamin A acid (VA) group,VA, zinc in FGCM for 10 d.The expressions of neuronal markers,neural specific enolase (NSE) and neu- rofilament (NF),glial cell marker,glial fibrillary acidic protein (GFAP),enteric neuronal marker,pro- tein gene production 9.5(PGP9.5),nitric oxide synthase (nNOS),enteric neural transmitter,vasoactive intestinal peptide (VIP) were detected by fluorescent immunohistochemistry method.Results The cul- tured BMSC were CD90 positive and CD45 negative on flow cytometry.After 10 d of induction,a certain number of cells adopted neuron-like morphological changes and showed the expressions of NSE,NF, PGPg.5,nNOS and VIP without the expression of GFAP by fluorescent immunohistoehemistry method in both groups.But in GDNF group,the positive rate of NF,PGP9.5,nNOS and VIP was significantly higher than that in VA group (75.6%?8.4% vs 48.5?7.5%;57.7%?6.5% vs 35.7%?7.2% 46.6%?5.4% vs 30.5%?6.6%;72.3%?6.7% vs 40.4%?7.4%;P＜0.01).Conclusion BMSC can be induced to differentate into enteric neuron in vitro by different methods.GDNF with FGCM can induce higher rate of enteric neuron like cells compared with VA etc.