Objective To explor the antioxidant effects of heme oxygenase-1(HO-1) for asthma and its mechanism.Methods Thirty two months old healthy male guinea pigs were randomly assigned to 3 groups,all of them were feed under the same management condition.Asthmatic group,refering to Huston′s research results,were sensitized by exposure to aerosolized ovalbumin(OVA) in order to build the guinea pig modle of asthma.Dexamethasone group(DG),were also sensitized by exposur to aerosolized ovalbumin as well as the asthmatic group had done and then treated with dexamethasone.Normal control group(NCG):were treated with 0.9% sterile sodium chloride.All the tested animals were measured the activity of lung HO-1,levels of malondialdehyde (MDA) in the lung tissue or serum and bilirubin in the serum by spectrophotometry.And the pathology and expression of HO-1protein in the lung tissue were observed.Results In the OVA induced asthmatic group,the HO-1 activity and level of MDA in lung tissue or serum were markedly increased compared with the groups of NCG and DG (P<0.01) and the expression of lung HO-1 protein was as 3~4 grade.While level of bilirubin was markedly reduced compared with NCG and DG.For example,in asthmatic group,the activity of lung HO-1 was,the level of bilirubin formed,(901.12±321.53)pmol/(mg MDA was(69.38±7.49)nmol/mg protein,and the level of bilirubin in serum was (0.54±0.23)pmol/L.In DG,the data of HO-1 and MDA as described above were markedly reduced compared with the OVA induced asthmatic group(P<0.01),and lung protein expression was 1~2 grade,while the level of bilirubin in the serum was increased(P<0.01).But,all datas of DG had no significant difference compared with NCG(P>0.05).Conclusion The guinea pigs′ in vivo lipid peroxide level increases and the level of bilirubin,an antioxidant,markedly decrease during asthma attacks,which induce the imbalance of oxidant and antioxidant.Content level and activity of HO-1 protein can increase in asthma body in order to compensate the reduce of bilirubin level,regulate the imbalance of oxidant and antioxidant,protect lung tissues from oxidizing reaction damage and relieve allergy or asthma symptoms.

Objective To optimize the technological conditions of polysaccharide purification from compound Qianyu water decoction. Methods Water extraction and alcohol precipitation, resolution, Sevag method and dialysis method were used to purify polysaccharide.The purity of polysaccharide was measured with the phenol-sulfuric acid spectrophotometry.On the basis of single factor test, effects of redissolved solid-liquid ratio, number of protein removal, and dialytic time on polysaccharide purity of Qianyu were investigated by orthogonal test. Results The best conditions for purification of polysaccharide in Qianyu were as follows: liquid-solid ratio was 1:40(g/mL, W/V), remove protein for 10 times, and dialysis for 18 h.The content of polysaccharide could reach 69.04%, and the transfer rate was 51.84%. Conclusion The optimized purification process was simple and accurate.It can be used for polysaccharide purification in compound Qianyu water decoction.

Objective To compare the effects of Huiru Yizeng granules Huiru yizeng original decoctin on hyperplasia of mammary glands with hyperprolactinemia in serum and pathological morphology of mammary glands tissue.Methods Seventy rats were randomly divided into 7 groups:normal control group,model control group,Huiru yizeng granules group,Huiru yizeng original decoctin group,Rubisanjie group,bromocriptine group and accessories group.After sucessfully modeling hyperplasia of mammary glandsin rats with hyperprolactinemia,Huiru yizeng granules group was administrated 17.22 g·kg-1·d-1,Huiru yizeng original decoctin group was administrated 20.08 g·kg-1·d-1,Rubi sanjie group was administrated 0.416 mg·kg-1·d-1,bromocriptine group was administrated 0.393 mg·kg-1·d-1.These groups were intragastric administration 2 mL every day for 30 consecutive days.The morphology of pathological tissue in mammary gland was observed by microscope.The levels of prolactin(PRL),progesterone(P),estradiol(E2) were determined by ELISA kit.Results Compared with the model group,Huiru yizeng granules group[PRL=(22.74±4.74) pg·mL-1,P=(46.91±2.85) ng·mL-1,E2=(99.96±9.61) pg·mL-1],Huiru yizeng original decoction group[PRL=(28.41±6.37) pg·mL-1,P=(43.91±4.17) ng·mL-1,E2=(105.02±3.05) pg·mL-1] and bromocriptine group[PRL=(23.58±4.10) pg·mL-1,P=(45.99±2.95) ng·mL-1,E2=(98.04±9.98) pg·mL-1]showed significant decrease in PRL,E2 levels,obvious increase in P(P<0.01).In Huiru yizeng granules group,Huiru yizeng original decoction group and bromocriptine group,PRL,P,and E2 returned to normal level after 30 days,and hyperplasia of mammary glands tissue had great ease.Huiru yizeng original decoction group was Ⅰ to Ⅱ hyperplasia,and Huiru yizeng granules group was 0 or Ⅰ hyperplasia.Compared with each other,the effect of Huiru yizeng granules on the mammary gland proliferation inhibition was superior to Huiru yizeng original decoction group.Conclusion On the treatment of hyperplasia of mammary glands and hyperprolactinemia,Huiru yizeng granules were better than Huiru yizeng original decoction.

Effect of scalding on secretory function of beta-endorphin neuron in the arcuate nucleus of the rat hypothalamus was studied semiquantitatively using immunocytochemistry and image analysis. The results showed that the number of beta-endorphin neurons and area of positive products reduced significantly (P

OBJECTIVETo detect the content of the basic fibroblast growth factor in blood samples of patients with Moyamoya disease, and investigate the relationship between Moyamoya disease and the basic fibroblast growth factor.

METHODSThis tissue microarray study included 24 cases of superficial temporal artery samples, 15 cases of Moyamoya disease, and 9 cases of normal arteries as control, and bFGF immunofluorescence assay was applied to test the samples. The number of positive cells and total cells of the muscular layer and the endothelium layer were counted separately in every picture, the positive rates were calculated, and the experimental data were analyzed statistically.

RESULTSThe bFGF immunofluorescence staining of smooth muscular layer cells, intima cells and endothelial cells from the moyamoya disease group were obviously stronger than that from the control group (P<0.01).

CONCLUSIONThe enhancement expression of bFGF in the Moyamaya disease group implicates that bFGF plays an important part in the pathogenesis of Moyamoya disease.

Adolescent ; Adult ; Aged ; Child ; China ; Female ; Fibroblast Growth Factor 2 ; blood ; Fluorescent Antibody Technique ; Humans ; Male ; Middle Aged ; Moyamoya Disease ; blood ; Tissue Array Analysis ; Young Adult

Biocompatibility of a newly developed ethylenediamine modified poly (DL-latic acid) (EMPLA) with osteoblasts was investigated by means of cell morphology and cell proliferation. Films of PLA and EMPLA were made by solvent casting. Osteoblasts obtained from crania of neonatal Wistar rats were cultured on surfaces of PLA and EMPLA, with glass as control. The cell morphology was observed by phase contrast microscope and the cell proliferation was determined by MTT assay. The morphology observations revealed that the osteoblasts cultured on EMPLA spread wider than those on PLA, and much more cells were confluent on EMPLA, compared to those on PLA and glass. The growth curves showed the osteoblasts on EMPLA grew faster than did those on PLA and glass. The results exhibited that the biocompatibility of EMPLA with osteoblasts is better than that of PLA and glass, which suggested wide applications of EMPLA in biomedical area, especially in tissue engineering.
Animals ; Animals, Newborn ; Biocompatible Materials ; chemistry ; pharmacology ; Cell Proliferation ; Cells, Cultured ; Ethylenediamines ; chemistry ; pharmacology ; Lactic Acid ; chemistry ; pharmacology ; Materials Testing ; methods ; Osteoblasts ; cytology ; Polyesters ; Polymers ; chemistry ; pharmacology ; Rats ; Rats, Wistar

Purpose: We aimed to identify effectiveness-associated indicators and evaluate the optimal tumor reduction rate (TRR) after two cycles of neoadjuvant chemotherapy (NAC) in patients with invasive breast cancer. Methods: This retrospective case-control study included patients who underwent at least four cycles of NAC at the Department of Breast Surgery between February 2013 and February 2020. A regression nomogram model for predicting pathological responses was constructed based on potential indicators. Results: A total of 784 patients were included, of whom 170 (21.68%) reported pathological complete response (pCR) after NAC and 614 (78.32%) had residual invasive tumors. The clinical T stage, clinical N stage, molecular subtype, and TRR were identified as independent predictors of pCR. Patients with a TRR > 35% were more likely to achieve pCR (odds ratio, 5.396; 95% confidence interval [CI], 3.299–8.825). The receiver operating characteristic (ROC) curve was plotted using the probability value, and the area under the ROC curve was 0.892 (95% CI, 0.863–0.922). Conclusion TRR > 35% is predictive of pCR after two cycles of NAC, and an early evaluation model using a nomogram based on five indicators, age, clinical T stage, clinical N stage, molecular subtype, and TRR, is applicable in patients with invasive breast cancer.

Biomedical materials are the biomaterials that, used in physiological system for diagnosis, treatment, plerosis or replacement of tissues and organs. Apoptosis, also known as PCD or ACD, is a normal physiological mechanism of cell in organism and a process of automatic cell death in which multicell organism modulates the development of organism and maintains the stability of internal environment. The human beings are able to understand the interaction between the material and organism at the molecular level due to the widely-used biomedical material and the development of material science, life science and biological technology. The research of that interaction is mainly focused on biocompatibility, while much attention has been drawn to the apoptosis induced by biomaterial concerning that apoptosis could be caused by inducing factor, and many therapies of diseases are closely related to inducing apoptosis. Based on the recent research advances of apoptosis in life science and the development of biomaterials, the pathways of apoptosis induced by biomaterials were reviewed; from the different views, the pathways of signal transduction of apoptosis include traditional pathway of signal transduction, the pathway of death receptor, and the pathway through mitochondrion. By the other way, the pathways of apoptosis caused by reactive oxygen species induced by biomaterials and apoptosis by affecting cell adhesion to biomaterials and so forth were discussed also. It indicates that the pathways to apoptosis due to biomaterials possess the characteristics of variety, intercrossing and multiplicity. It is essential for a research to inquire into the mechanism of apoptosis that is induced by biomaterials, and further into the manufacturing of biomaterials. This review is devoted to shedding light on the wide application of biomaterials in the therapy of human diseases, especially in the therapy of cancer that is closely related to apoptosis.
Apoptosis ; drug effects ; Biocompatible Materials ; adverse effects ; Cell Adhesion ; drug effects ; Humans ; Materials Testing ; Mitochondria ; physiology ; Signal Transduction

Objective:To explore the occurrence of symptoms in postoperative patients with oral cancer, and to explore the types and number of symptom groups.Methods:The Anderson symptom assessment scale for head and neck cancer was used to conduct a questionnaire survey on 345 patients after oral cancer surgery. The results of two exploratory factor analysis methods were compared, and the cluster analysis and Spearman rank correlation analysis were combined to determine the symptom group of patients after oral cancer surgery.Results:There were 4 symptom groups in patients with oral cancer, including oral and pharynx symptoms group, dietary and digestive symptoms group, gastrointestinal and emotional symptoms group, and rest activity symptoms group.Conclusions:There are many symptom groups that affect the life of patients with oral cancer in the rehabilitation process after surgery, so the medical staff should carry out targeted intervention mode to achieve better intervention effect.

Objective: To explore the basic conditions and postoperative quality of life in patients undergoing oral vestibular thyroid surgery. Methods: A total of 128 patients undergoing oral vestibular thyroid surgery were enrolled in the Department of Head and Neck Surgery from March 2015 to April 2018. On the basis of routine thyroid tumor care, we used telephone, WeChat public platform, WeChat group, QQ, and Email. Questionnaires such as information technology and clinic review. Correlation analysis was performed using SPSS 22.0. Results: According to the analysis of SPSS statistical software, the postoperative recovery of the patients is good, and more than 95% of the patients have the feeling of "no" or "a little" for symptoms, and 91.8% (102/111) and 93.6% (104/111) of the patients have the perception of the general health status and life quality of the patients in the past 1 week respectively. Analysis of variance of postoperative life quality of patients, postoperative regression post was significantly correlated with postoperative social cognition, insomnia and economic difficulties of patients. The education level, occupation, marital status and family income of the patients all had significant influences on the postoperative economic status of the patients, and the differences were statistically significant (t=2.66-4.74, P<0.05). In the regression analysis of patients′ life quality, emotional function and physical function were independent risk factors affecting patients′ life quality, with statistical significance (t=-2.072, -5.564, P < 0.05). Conclusion Endoscopic thyroidectomy via oral vestibule has the advantages of good effect, beautiful appearance and high quality of life, which is worth popularizing and applying.