Objective To study the expression and significance of indoleamine-2,3-dioxygenase(IDO)in non-small-cell lung cancer(NSCLC).Methods Thirty-eight cases of lung cancer tissues and 10 cases of paracancerous normal lung tissue were collected.The semiquantitative immunohistochemistry was used to detect the positive rate of IDO and fluorescent quantitative PCR to detect the level of IDO mRNA in the lung tissues respectively.Results The positive rate of IDO and the level of IDO mRNA in NSCLC group were significantly higher than in paracancerous normal lung tissues(P＜0.05).There was no significant difference in the positive rate of IDO and the level of IDO mRNA between the adenocarcinoma group and the squamous cell carcinoma group(P＞0.05).Statistically,there was significant difference in positive rate of IDO and the level of IDO mRNA among low,middle and high differentiation groups(P＜0.05).There was significant difference in positive rate of IDO and the level of IDO mRNA between the lymph node metastasis and non-metastasis groups(P＜0.05).Conclusion The high expression of IDO in NSCLC is correlated with the degree of differentiation and the metastasis of lymph nodes,but not with the pathological types.

AIM: To investigate the effect of hypoxia on the expression of MMP-2 and TIMP-1 in pulmonary artery fibroblasts. METHODS: MMP-2 activity was measured by using gelatin zymography. TIMP-1 protein level was determined by immunocytochemistry and Western blotting. mRNA expression was determined by reverse transcriptase-polymerase chain reaction (RT-PCR). RESULTS: The production of MMP-2 mRNA and protein was down-regulated in pulmonary artery fibroblasts exposed to hypoxia for 24 h. Gelatin zymography also demonstrated that lower level of MMP-2 activity was induced after hypoxia. Meanwhile, hypoxia induced the up-regulation of TIMP-1 mRNA and protein in pulmonary artery fibroblasts. CONCLUSION: Hypoxia induces unbalance of MMP-2/TIMP-1 in pulmonary artery fibroblasts, which may contribute to the mechanism of hypoxic pulmonary vascular remodeling.

The up-regulation mechanism of membrane type I matrix metalloproteinase (MT1-MMP) in macrophages stimulated by silica in vitro and the contribution of early growth response 1 (Egr-1) transcription factor in the gene expression pathway were investigated. Macrophages stimulated by silica were treated with Egr-1 antibody or Egr-1 decoy oligodeoxynucleotides (ODN). The levels of MT1-MMP proteins were determined by Western blot and the expression of MT1-MMP mRNAs was detected by RT-PCR. The results showed as compared with control macrophages, silica-stimulated group showed up-regulated gene expression of MT1-MMP via Egr-1 (P<0.01). Compared with silica-stimulated macrophages untreated with antibody, the cells treated with 5 microg/mL Egr-1 antibody were associated with reduced expression of MT1-MMP protein (P<0.01) and mRNA (P<0.01). Compared with silica-stimulated untransfected group, the Egr-1 "decoy" ODN group was associated with reduction in the expression of MT1-MMP protein and mRNA (P<0.01). It was concluded gene expression of MT1-MMP which may play a critical role in silicosis was up-regulated by silica in macrophages. Egr-1 participated in the expression of MT1-MMP and positively regulated the expression. Both Egr-1 antibody and Egr-1 decoy ODN suppressed the expression of MT1-MMP through the Egr-1 pathway and may become a potential therapeutic tool in the management of silicosis in the future.

Objective To explore an economic and effective management strategy for lumbar disc herniation (LDH) in community health center. Methods 62 LDH patients treated in Xujiahui community health center (observation group), 48 LDH patients treated in Huajing community health center (control group A) and 55 LDH patients treated in Shanghai 6th People's Hospital (control group B) were included.The observation group was managed by associate professor from Shanghai 6th People's Hospital and accepted different treatment strategy in mild, medium and heavy grades. The control groups A and B were managed routinely. 3 month later, costs of illness were computed and curative effects were accessed in 3 groups. Results There was no difference in curative effects between observation group and control group B (P>0.05), but better than control group A (P<0.05). The observation group cost the least among the groups (P<0.05). Conclusion Graded treatment strategy united with tertiary hospital is an economic and effective mode for LDH management in community health center.

Adult ; Aged ; Female ; Fracture Fixation ; methods ; Fractures, Bone ; surgery ; Humans ; Male ; Middle Aged ; Patella ; injuries ; Suture Techniques

To explore the growth and development and analyze the quality of the parthenocarpy fruit induced by exogenous hormones of Siraitia grosvenorii. the horizontal and vertical diameter, volume of the fruit were respectively measured by morphological and the content of endogenous hormones were determined by ELISA. The size and seed and content of mogrosides of mature fruit were determined. The results showed that the fruit of parthenocarpy was seedless and its growth and development is similar to the diploid fruit by hand pollination and triploid fruit by hand pollination or hormones. But the absolute value of horizontal and vertical diameter, volume of parthenocarpy fruit was less than those of fruit by hand pollination, while triploid was opposite. The content of IAA, ABA and ratio of ABA/GA was obviously wavy. At 0-30 d the content of IAA and ABA of parthenocarpy fruit first reduced then increased, content of IAA and GA parthenocarpy fruit was higher than that of fruit by hand pollination. Mogrosides of parthenocarpy fruit was close to pollination fruit. Hormones can induce S. grosvenorii parthenocarpy to get seedless fruit and the fruit shape and size and quality is close to normal diploid fruit by hand pollination and better than triploid fruit by hormone or hand pollination.
Cucurbitaceae ; chemistry ; drug effects ; genetics ; growth & development ; Diploidy ; Fruit ; chemistry ; genetics ; growth & development ; Plant Growth Regulators ; pharmacology

Objective To compare the efficacy and adverse effects of hypofractionated radiotherapy versus conventionally fractionated radiotherapy for intermediate-to high-risk localized prostate cancer.Methods A literature search was performed in PubMed, Embase, Web of Science, CNKI, VIP database, and Wanfang Data to collect the controlled clinical trials of hypofractionated radiotherapy versus conventionally fractionated radiotherapy in patients with intermediate-to high-risk localized PCa published up to August 31, 2016.Stata 12.0 was used for meta-analysis.The difference between two groups was estimated by calculating the hazard ratio (HR) or risk ratio (RR) with 95%confidence interval (CI).ResultsAccording to the inclusion and exclusion criteria, a total of 5 controlled clinical trials involving 1621 patients with PCa were included in this meta-analysis.The meta-analysis showed that overall survival (HR=1.00, 95%CI:0.85-1.17, P=0.980) and biochemical failure (RR=0.87, 95%CI:0.68-1.12, P=0.274) were comparable between the two groups.Compared with the conventionally fractionated radiotherapy, the incidence of acute gastrointestinal adverse events (grade≥2) was significantly higher in the hypofractionated radiotherapy (RR=1.94, 95%CI:1.23-3.06, P=0.004).However, there were no significant differences in the incidence of acute genitourinary adverse events (grade≥2)(RR=1.03, 95%CI:0.92-1.14,P=0.626), late gastrointestinal adverse events (grade≥2)(RR=1.17,95%CI:0.90-1.51, P=0.238), and late genitourinary adverse events (grade≥2)(RR=1.11, 95%CI:0.94-1.30, P=0.228) between the two groups.Conclusions Conventionally fractionated radiotherapy and hypofractionated radiotherapy have comparable therapeutic effects in patients with intermediate-to high-risk localized PCa.Although the patients treated with hypofractionated radiotherapy have a higher incidence of acute gastrointestinal adverse events than those treated with conventionally fractionated radiotherapy, the incidence of late gastrointestinal and genitourinary adverse events is comparable between the two groups of patients and the adverse effects are tolerable.

Objective To study the clinical significance of fecal smear examination on diagnosing intestinal flora imbalance in infantile diarrhea.Methods A sterile cotton swab was used to spread a layer of fresh feces quantum satis from a sterile container on a clean slide;the smear was fixed and stained with Gram′s methods after it was air-dried,then the specimen was observed with a microscopy(field lens 100 ? eye lens 10) and recorded.Results In the acute diarrhea group(40 cases),the distribution feature of 3 floras on the fecal smears:≥50% Gram-negative bacilli in 6 cases(15%),≥50% Gram-positive cocci in 30 cases(75%) and ≥68% Gram-positive bacilli in 4 cases(10%).In the delayed and chronic diarrhea group(62 cases),the distribution feature of 3 floras on the fecal smears:≥50% Gram-negative bacilli in 7 cases(11.29%),≥50% Gram-positive cocci in 44 cases(70.97%) and ≥68% Gram-positive bacilli in 6 cases(9.68%).In the normal control group(32 cases),the distribution feature of 3 floras on the fecal smears:≥50% Gram-negative bacilli in 1 case(3.13%),≥50% Gram-positive cocci in 1 case(3.13%),and ≥68% Gram-positive bacilli in 17 cases(53.13%).For the distribution of 3 floras in the 3 groups,chi-squared test was performed,and the results showed that the difference was significant in Gram-positive cocci(?~2=47.76 P0.05).Conclusions Acute,delayed or chronic diarrhea can lead to flora imbalance.In order to timely and rapidly know the flora imbalance in children with diarrhea,clinically the simple,easily operated and practical smear staining method shall be widely applied.

This study aims to investigate whether the cultivation peony, can take the place of wild herbaceous peony by comparing the biological traits and paeoniflorin content between them. The result showed that the biomass of the stem, leaf, crown, fleshy root and fine root of wild plants were all smaller than that of bud asexual cultivated plants, while there was no significant differences in below-ground and aboveground biomass ratio between these two plants. The stele diameter, the proportion of stele, and the ratio of stele diameter to cortex thickness of wild plants were significantly higher than that of bud asexual cultivated plants, while the cortex thickness and the proportion of cortex were significantly smaller than bud asexual cultivated plants. Although the biological traits of bud asexual cultivated plants have changed significantly, the paeoniflorin content in fleshy roots has no significant difference between wild and bud asexual cultivated plants. Therefore, it is feasible to use the bud asexual cultivation to the conservation and large-scale cultivation of Paeonia laciflora, which is an endangered species.
Glucosides ; analysis ; Monoterpenes ; analysis ; Paeonia ; anatomy & histology ; chemistry ; growth & development

OBJECTIVETo study the effect and mechanism of mexican tea herb and pilular adina herb (abbreviated to MP) on concrescence of gastric mucosa in experimental gastric ulcer rats by observing the changes of epidermal growth factor (EGF), nitrogen monoxidum (NO) and expression of epidermal growth factor receptor (EGFR).

METHODSThe rat ulcer model was established by 100% glacial acetic injection into the subserosa. The ulcer index (UI) was measured by sliding caliper. The levels of NO and EGF in tissue and serum were measured by the nitrate reductase method and enzyme-linked immunosorbent assay, respectively. The expression of EGFR in the mucosa around the ulcer was detected by the immunohistochemical assay and microimage analysis system.

RESULTS(1) Compared with the model group, UI of MP groups (10, 15 and 20 mg.kg(-1).d(-1)) and ranitidine group was lower (P<0.05 or P<0.01), the levels of NO and EGF in the tissue and serum were higher (P<0.05), the thickness of regenerated mucous membrane increased, and the width loss of lamina muscularis mucosa decreased (all P<0.05). (2) The expression of EGFR is weakly positive in gastric mucosa cells in the normal group, mainly in the cytoplasm and cytomembrane. In the model group, the expression of EGFR was mainly in epithelial cells in cervical part and basilar part of gastric gland around the ulcer margin, and the number of cells with EGFR weakly positive expression was more than that in the normal group. Compared with that in the normal and model groups, the number of cells with EGFR positive in MP groups and ranitidine group increased (all P<0.05), with weakly positive expression.

CONCLUSIONMP can protect gastric mucosa, cure gastric ulcer, restrain the secretion of gastric acid, and boost multiplication, differentiation, migration and repair of the endothelial cell by promoting the secretion of NO and EGF, and increasing the expression of EGFR of gastric mucosa epithelial cells.

Animals ; Drugs, Chinese Herbal ; therapeutic use ; Epidermal Growth Factor ; analysis ; Female ; Gastric Mucosa ; chemistry ; drug effects ; pathology ; Immunohistochemistry ; Male ; Nitric Oxide ; analysis ; Rats ; Rats, Sprague-Dawley ; Receptor, Epidermal Growth Factor ; analysis ; Regeneration ; Stomach Ulcer ; drug therapy ; pathology ; Tea