Objective To analyze comprehensively the monitoring data of iodized salt in Zhangjiakou city during 2001 to 2009, and to provide basic information for working out control strategies of the iodine deficiency disorders. Methods According to the iodized salt monitoring requirements in National Iodine Deficiency Disorders Monitoring Program of Ministry of Health, a batch of nine salt samples were taken from each processing (wholesale)company of each county or district of the seventeen counties(districts) of Zhangjiakou once a month. Two townships (towns, street offices) were selected by their location of east, south, west and north in each county(district), and a township in central area each year. Four villages(neighborhoods) were selected in each township(town, street office),and eight household salt samples were collected in each village(neighborhood), and quantitatively determined by direct titration of iodine. Results Iodized salt processing(wholesale) : during 2001 to 2009, a total of 1728 batches was monitored, 1689 batch qualified, batch qualification rate 97.74%;15552 salt samples were tested, 15 357 qualified, iodized salt qualification rate 98.75 %. Household salt levels : 5297 villages (neighborhoods) of 1305 townships(towns, street offices) were monitored, 44 316 salt samples were collected, 43 274 qualified, iodized salt qualification rate 98.04%(43 274/44 141 ), iodized salt coverage rate 99.61%(44 141/44 316), qualified iodized salt consumption rate 97.65%(43 274/44 316). Rate of non-iodized salt was 0.40%(260/44 316), and salt median iodine was 30.02 mg/kg. Conclusions The iodized salt quality indicators are within the state-controlled range in Zhangjiakou city for nine years which remaines at relatively stable levels with a smaller range of annual fluctuations.Detection of non-iodized salt over the years has become the main factors affecting the effectiveness of the prevention and control measures.We should increase monitoring,supervision,and universal health education,and prevent the spread of non-iodized salt.

OBJECTIVETo investigate the effects of combined application of Xuezhikang Capsule (XZK) and hypotensive drugs on the dynamic blood pressure (DBP), pulse pressure index (PPI), pulse wave velocity (PWV) and smoothness index (SI), and to study the relationship between SI and related factors (age, BP, dynamic PPI, and vascular elasticity).

METHODSOne hundred and ten patients with essential hypertension were randomly assigned to 2 groups: 54 in the control group and 56 in the treated group. Both were treated with hypertensive drugs, but with oral medication of XZK given additionally to the treated group at the dose of 60 mg, twice a day. PWV and DBP were measured before treatment and at the terminal of a 6-month treatment. Meantime, the 24-h average systolic and diastolic pressures were recorded to calculate the 24-h dynamic pulse pressure (24 hPP), PPI, SI of systolic and diastolic blood pressure (SISBP and SIDBP) for comparing the changes between groups and analyzing the SI related factors.

RESULTSAll patients' blood pressure levels were well controlled; after a 6-month treatment, the PP and PPI in the treated group were 45 +/- 8 mm Hg and 0.35 +/- 0.08 respectively, which were significantly lower than those in the control group (51 +/- 10 mm Hg and 0.38 +/- 0.05, P < 0.05); while SISBP and SIDBP in the treated group were higher than those in the control group (1.37 +/- 0.16 vs 1.26 +/- 0.20, P < 0.01; and 1.28 +/- 0.14 vs 1.18 +/- 0.23, P < 0.05) respectively; and PWV in the former was significantly lower than that in the latter group (10.4 +/- 3.68 m/s vs 12.5 +/- 4.27 m/s, P < 0.05). Multiple factor stepwise regression analysis showed that the SISBP was negatively correlated with age, PPI and PWV, while the SIDBP was negatively correlated with PPI (P < 0.01).

CONCLUSIONThe combined application of XZK and hypotensive drugs can decrease PP and PPI, improve the endothelial function and arterial elasticity, enhance the efficacy of treatment on SI. After treatment SI shows a significant negative correlation with PPI, PWV and age in patients.

Adult ; Aged ; Antihypertensive Agents ; therapeutic use ; Arteries ; drug effects ; physiopathology ; Blood Pressure ; drug effects ; Compliance ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Female ; Humans ; Hypertension ; drug therapy ; physiopathology ; Male ; Middle Aged ; Phytotherapy

Cell Line, Tumor ; Genes, ras ; Humans ; Oligonucleotides, Antisense ; therapeutic use ; Pancreatic Neoplasms ; genetics ; therapy ; Point Mutation ; RNA, Messenger ; analysis

OBJECTIVETo investigate the effects of antisense oligonucleotide specific to K-ras point mutation on human pancreatic carcinoma cell PC-2 in vitro.

METHODSHuman pancreatic carcinoma cell PC-2 was transducted with antisense oligonucleotide specific to K-ras point mutation by liposome; the expression of target gene was studied with immunohistochemistry and in situ hybridization. The effect on cell proliferation was studied by artificial count, MTT and mass test.

RESULTSThe expression degree of ras protein and K-ras mRNA transducted with antisense oligonucleotide decreased apparently compared with control group and sense oligonucleotide group 48 h after tansduction. The inhibitory effect on cell proliferation was confirmed by artificial count, MTT and mass test.

CONCLUSIONSAntisense oligonucleotide specific to K-ras point mutation has an apparent inhibitory effect on target gene expression and cell proliferation of human pancreatic carcinoma cell in vitro.

Cell Proliferation ; drug effects ; Genes, ras ; genetics ; Humans ; Oligonucleotides, Antisense ; genetics ; pharmacology ; Pancreatic Neoplasms ; genetics ; pathology ; Point Mutation ; genetics ; Transfection ; Tumor Cells, Cultured

Objective To evaluate the effect of patients' compliance on clinical parameters in patients with chronic periodontitis during periodontal maintenance therapy period.Methods Chronic periodontitis patients who had completed non-surgical periodontal basic treatment were incorporated into the periodontal maintenance therapy(PMT).Clinical examination was performed in the baseline and each quarterly recall,over 3-year period.Clinical parameters including number of teeth,probing depth (PD),attachment loss(AL) level and bleeding on probing(BOP),were recorded.According to the number of PMT visit,the patients were classified into three groups:regular complier (RC) ; erratic complier (EC) ;non-complier(NC).The final parameters (three years later) were obtained by outpatient follow-up and telephone interviews.The data were calculated for the pecentage of sites with PD 4-5 mm,PD ≥ 6 mm,AL 4-5 mm,AL≥ 6 mm,BOP,and the number of tooth loss per patient and the rates of progression of periodontitis.Statistical analyses including ANOVA test and Chi-square test were performed by SPSS 16.0 software package.Results The percentage of clinical parameters in RC [AL 4-5 mm:(14.8 ± 5.0) ％,AL≥6 mm:(9.3 ± 3.1)％,BOP:(22.8 ± 4.2)％] were significantly decreased compared with that at baseline[AL4-5 mm:(19.0 ±6.0)％,AL≥6 mm:(10.6±3.1)％,BOP:(30.3 ±5.6)％] (P＜ 0.01).There was significant difference between RC and NC [AL 4-5mm:(43.3 ± 1.3) ％,AL ≥ 6 mm:(31.3±1.7)％,BOP(91.5±5.4)％](P＜0.01),and between RC and EC[AL4-5 mm:(18.9± 6.7)％,AL≥6 mm:(12.6±5.4)％,BOP:(38.4± 5.2)％] (P＜0.05).The progression rate of periodontitis [19.1％ (4/21) at subject level,0.7％ (434/61 362) at site level] and tooth loss(1.0) was significantly lower in RC compared with EC and NC patients.Conclusions Regular periodontal maintenance enables the patients with chronic periodontitis to maintain long-term efficacy.

BACKGROUNDOur previous research has suggested that platelet activating factor receptor was related to atherosclerosis. The present study investigated the effect of a platelet activating factor receptor antagonist-WEB2086 on angiogenesis in aortal plaque and ischemic hindlimb of apolipoprotein E-deficient mice.

METHODSEight-week-old apolipoprotein E-deficient mice were fed with a 0.15% cholesterol diet to develop advanced lesions. At age 32 weeks unilateral hindlimb ischemia was surgically induced and the mice were divided into two groups: with or without WEB2086 mixed with their drinking water (4.3 mg in 100 ml). At age 40 weeks blood was collected from the orbit for measurement of serum lipids and an enzyme linked immunosorbent assay was used to determine platelet activating factor and oxidized low density lipoprotein in the gastrocnemius and aorta. Whole-Mount CD31 stain and plaque-associated sprouting have been used to estimate angiogenesis in plaque from the aorta and laser Doppler perfusion imaging and immunohistochemical expression of von Willebrand factor have been used to estimate angiogenesis in ischemic hindlimb.

RESULTSThe lipid composition of serum was not different between the groups. However, the amount of platelet activating factor and oxidized low density lipoprotein detected in the aorta was significantly higher than that in the gastrocnemius of ischemic hindlimb. The ratio of lesion to aorta levels was significantly reduced by administration of WEB2086, (31.52 +/- 6.18)% vs (55.58 +/- 8.34)%, P < 0.01. The mean density of intimal capillaries in atherosclerotic plaque, (31.13 +/- 9.20)% vs (57.74 +/- 11.28)%, P < 0.01, and the mean number of sprouts per aorta were significantly reduced, 183.92 +/- 34.17 vs 392.54 +/- 76.79, P < 0.01, in the WEB2086 group. Blood flow (0.85 +/- 0.12 vs 0.45 +/- 0.06, P < 0.01) and capillary density of ischemic hindlimb (1.18 +/- 0.17 vs 0.53 +/- 0.09, P < 0.01) were markedly increased in apolipoprotein E-deficient mice treated with WEB2086 versus controls.

CONCLUSIONThe study provides evidence that WEB2086 can inhibit angiogenesis in atherosclerotic plaque but promote it in ischemic hindlimb.

Animals ; Apolipoproteins E ; deficiency ; Atherosclerosis ; physiopathology ; Azepines ; pharmacology ; Capillaries ; Cholesterol ; blood ; Hindlimb ; blood supply ; Ischemia ; physiopathology ; Lipoproteins, LDL ; blood ; physiology ; Male ; Mice ; Neovascularization, Physiologic ; drug effects ; Platelet Activating Factor ; analysis ; Platelet Membrane Glycoproteins ; antagonists & inhibitors ; Receptors, G-Protein-Coupled ; antagonists & inhibitors ; Triazoles ; pharmacology

OBJECTIVETo investigate DNA aneuploid and P16 expression in biopsy specimens from lung cancer, and to study genetic instability and the application of flow cytometry in lung cancer pernicious degree diagnosis.

METHODSBlood cells and cancer cells in biopsy specimens were marked simultaneously with anti-CD45 and anti-P16 fluorescent antibody, and the ratio of CD45+ P16+ cells and CD4- P16+ cells was compared. DNA content in biopsy specimens from lung cancer was detected by flow cytometry.

RESULTSAmong the 74 cases of lung cancer, there are 46 cases of DNA aneuploid (62.2%). Thirty-seven cases of lung cancer expressed P16 lowly (50%). Twelve cases of lung cancer only expressed P16 lowly (16.22%), 21 cases of lung cancer only expressed DNA aneuploid (28.38%), and 25 cases not only expressed P16 lowly but also expressed DNA aneuploid (33.78%). Indexes of malign degree, such as P16 low expression or DNA aneuploid could be detected in 58 cases among the 74 cases (78.38%) by flow cytometry.

CONCLUSIONP16 low expression and DNA aneuploid are the indexes of lung cancer malign degree, and flow cytometry can be used to study genetic instability and evaluate biopsy specimens from lung cancer.

Aneuploidy ; Animals ; Biopsy ; Chromosomal Instability ; genetics ; DNA ; genetics ; Female ; Flow Cytometry ; Gene Dosage ; Gene Expression Regulation, Neoplastic ; Genes, p16 ; Humans ; Leukocyte Common Antigens ; genetics ; Lung Neoplasms ; diagnosis ; genetics ; pathology ; Male ; Mice ; Middle Aged

OBJECTIVETo explore the therapeutic principles and prognostic factors of soft tissue sarcoma.

METHODSTwo hundred and fifty-one patients with soft tissue sarcoma (STS) treated at Shanghai Cancer Hospital during 1986 - 1990 were reviewed retrospectively.

RESULTSThe 1-, 3-, 5-, 10-year tumor-free survival rates were 67.74%, 57.16%, 52.41%, 38.60%, respectively. The overall survival rates for 1, 3, 5 and 10 years were 81.01%, 67.75%, 60.79%, and 49.23% respectively. Log-rank test showed that the patients with different pathological findings, histological grades, mass location and size, anatomical depth, and surgical margin showed different outcomes. Whether the sarcomas invaded the vessels or metastasized would influence the survival rates. The patients who underwent different interventions or operations also had different outcomes. The prognosis of STS was associated with age, histological type, histological grade, tumor size, surgical margin and metastasis according to the Cox regression analysis.

CONCLUSIONDuring the treatment of STS, wide-resection, especially 3-dimensional resection, comprehensive treatment and individualized treatment should be advocated.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Chemotherapy, Adjuvant ; Child ; Child, Preschool ; Combined Modality Therapy ; Female ; Humans ; Male ; Middle Aged ; Radiotherapy, Adjuvant ; Retrospective Studies ; Sarcoma ; mortality ; pathology ; therapy ; Soft Tissue Neoplasms ; mortality ; pathology ; therapy ; Survival Analysis ; Survival Rate

Objective To evaluate the effect of long-term microwave radiation on the expression of N-methyl-D-aspartate receptor(NMDAR),brain derived neurotrophic factor(BDNF) and related molecules in signal pathways in the hippocampus of rats.Methods Fifty male Wistar rats were exposed to microwave radiation at an average power density of 0,5,10,20 and 30 mW/cm2for 6 min/time,3 times/week,and for 6 weeks,which were sacrificed and the hippocampus was quickly removed at 14 d and 28 d after exposure.The changes in NMDAR (NR1,NR2A,NR2B),postsynaptic density protein(PSD)-95,cortactin,BDNF and tyrosine kinase receptor B (TrkB) in hippocampal neurons of each group were detected by Western blotting and image analysis techniques.Results Compared with the control group,the expressions of related proteins did not change significantly after microwave irradiation of 5 mW/cm2 at each time point.After 20 mW/cm2 microwave radiation,the expression of NR1 was increased at 14 and 28 d (P ＜0.05),the expression of NR2A was increased at 28 d (P ＜ 0.05),but the expression of NR2B was decreased at 14 and 28 d (P ＜ 0.05).At a average power density of 30 mW/cm2,the expressions of NR1,NR2A and PSD-95 and the expression of NR2B were decreased at 14 and 28 d(P ＜0.05),and cortactin,BDNF and TrkB were increased at 14 d after irradiation (P ＜ 0.05).Conclusion The effect of different dosages of long-term microwave radiation on the proteins of NMDAR and its signal pathway related molecules is different.Microwave radiation may affect the NMDAR of postsynaptic information transmission through the BDNF-TrkB signaling pathways,which might play an important role in the impediment of learning and memory function caused by microwave radiation.

OBJECTIVETo explore the influence of oxidized high-density lipoprotein (oxHDL) on the maturation and migration of bone marrow-derived dendritic cells (BMDCs) from C57BL/6J mice.

METHODSThe C57BL/6J mice bone marrow cell suspension was prepared and purified. Recombinant granulocyte-macrophage colony-stimulating factor (rmGM-CSF) and recombinant interleukin-4 (rmIL-4) were used to promote monocytes to differentiate and suppress lymphocytes. Then 50 microg/mL oxHDL was added to stimulate BMDCs, using 50 microg/mL high-density lipoprotein (HDL) as homologous protein control, PBS as negative control, and 1 microg/mL lipopolysaccharide (LPS) as positive control. The CD86 and MHCII expression rates were detected with fluorescence-activated cell sorting (FACS). Liquid scintillation counting (LSC) was used in mixed lymphocyte reactions (MLRs) to reflect the ability of BMDCs in stimulating the proliferation of homologous T cells. Levels of cytokines IL-12 and IL-10 were detected by ELISA. The cell migration was evaluated with the transwell system.

RESULTSCompared with PBS group, the expressions of CD86 and MHCII, counts per minute of MLRs, secretion of IL-12 and IL-10, and number of migrated cells in oxHDL group and LPS group significantly increased (all P<0.05), while the increment was less in oxHDL group than LPS group. The number of migrated cells in oxHDL group was about twice of that in HDL group.

CONCLUSIONOxHDL may promote the maturation and migration of BMDCs in vitro.

Animals ; Bone Marrow Cells ; cytology ; drug effects ; physiology ; Cell Differentiation ; drug effects ; Cell Movement ; drug effects ; Cells, Cultured ; Dendritic Cells ; cytology ; drug effects ; physiology ; Humans ; Lipoproteins, HDL ; metabolism ; pharmacology ; Lipoproteins, LDL ; metabolism ; pharmacology ; Mice ; Mice, Inbred C57BL