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Table of Content

      
    10 July 2014
    Volume 52 Issue 7
    Effects of FPS-ZM1 on the metabolism of Aβ induced by advanced glycation end products in hippocampus
    SUN Menghan, HONG Yan, HOU Xunyao, MA Yingjuan, SHEN Chao, YIN Qingqing, CHEN Jian, LUO Dingzhen, LIU Xueping
    JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES). 2014, 52(7):  1-6.  doi:10.6040/j.issn.1671-7554.0.2013.688
    Abstract ( 804 )   PDF (4310KB) ( 190 )   Save
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    Objective To detect the effects of RAGE inhibitor FPS-ZM1 on the metabolism of Aβ and related factors induced by advanced glycation end products (AGEs) in hippocampus. Methods A total of 40 Wistar rats were randomly divided into normal control group (NC group), FPS-ZM1 control group, AGEs group and FPS-ZM1 group. AGEs were injected into hippocampus to produce brain injury models of AGEs and the rats were intervened by FPS-ZM1. After the animal models were constructed for 3 weeks, HE staining was used to detect the pathological change. The escape latency (EL) was assayed with Morris water maze test. Western blotting was performed to detect the expression of RAGE, p-NF-κB, BACE1 and APP protein expression. The levels of Aβ1-40 and Aβ1-42 of each group were measured by enzyme linked immunosorbent assay. Results Compared with NC group and FPS-ZM1 control group, the neurons in hippocampus of AGEs group and FPS-ZM1 group arranged more irregularly, and the protein expressions of p-NF-κB, BACE1 and APP, and the concentrations of Aβ1-40 and Aβ1-42 were obviously increased (P<0.01), but each index of FPS-ZM1 group was evidently lower than that of the AGEs group. Meanwhile, in the AGEs group, theprotein expression of RAGE was significantly higher and the EL was also longer (P<0.01), but the above indexes in FPS-ZM1 group were not significantly different (P>0.05). Conclusion The RAGE inhibitor FPS-ZM1 can reduce the metabolism of Aβ and related factors to effectively suppress the AGEs brain injury.
    Effects of different platforms on the learning and memory capability of rats in the Morris water maze
    ZHANG Yuxia, LI Yue, SONG Tao
    JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES). 2014, 52(7):  7-10.  doi:10.6040/j.issn.1671-7554.1.2014.004
    Abstract ( 1028 )   PDF (1556KB) ( 220 )   Save
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    Objective To study the effects of platforms with different shapes on learning and memory capability using the Morris water maze. Methods Morris water maze was used to detect learning and memory capability of 44 healthy male SD rats. Two escape platforms with different shapes(cylinder or rod) were used to investigate the effects of different platforms on learning and memory capability. Results The data of escape latency showed no significant difference(P>0.05). There was no significant difference in probe trial(P>0.05). Conclusion Platforms with different shapes do not affect the learning and memory capability in Morris water maze.
    Effect of donepezil on hypothalamic-pituitary-adrenocortical-axis in Alzheimer’s disease rats
    WANG Jinhong, LI Wentao, YU Shutian, DONG Li
    JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES). 2014, 52(7):  11-15.  doi:10.6040/j.issn.1671-7554.0.2014.010
    Abstract ( 1015 )   PDF (2362KB) ( 237 )   Save
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    Objective To investigate the effect of donepezil on hypothalamic-pituitary-adrenocortical-axis(HPA)in Alzheimer's disease (AD) rats. Methods A total of 30 healthy male Wistar rats were injected into amyloid β-protein 25-35 (Aβ25-35) intracerebroventricularly and D-galactose (D-gal) intraperitoneally to prepare AD model and divided into normal control group, AD model group, and donepezil group randomly, and 10 rats in each group. Serum hydrocortisone (HYD) and adrenocorticotropic hormone (ACTH) concentrations were detected by radioimmunoassay. Morphology of hypothalamus was observed with transmission electron microscope, and the expressions of corticotropin releasing hormone (CRH) and CRH receptor 1 (CRHR1) were observed by immunohistochemical method. Results Compared with normal control group, learning ability of model rats decreased (P<0.05), HYD concentration increased (P<0.01), ACTH concentration decreased significantly (P<0.01), and the expressions of CRH and CRHR1 reduced. The ultrastructure of hypothalamus of model rats were damaged. Compared with AD model group, donepezil decreased serum concentration of HYD and increased serum concentration of ACTH in the AD rats (P<0.05 or P<0.01 respectively), and improved the expressions of CRH and CRHR1, which protected ultrastructure damage of hypothalamus. Conclusion Donepezil improves the function of HPA in AD rats and shows treatment effect on AD.
    Effects of down-regulating of acetyl CoA carboxylase 2 on intracellular lipid accumulation and epithelial mesenchymal transition in high glucose cultured human renal proximal tubular epithelial cells
    HUANG Jing, XU Ying, LIU Yi, XIN Wei, ZHAO Xu, LIU Lei, WAN Qiang
    JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES). 2014, 52(7):  16-21.  doi:10.6040/j.issn.1671-7554.0.2013.743
    Abstract ( 1033 )   PDF (37578KB) ( 117 )   Save
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    Objective To explore the effects and mechanisms of RNA interference mediated by lentivirus down-regulating acetyl CoA carboxylase 2 (ACC2) on intracellular lipid accumulation and epithelial mesenchymal transition (EMT) in high glucose cultured human renal proximal tubular epithelial cells (HKC). Methods The lentivirus vector based on small hairpin RNA (shRNA) targeting ACC2 was constructed and delivered to HKC cells cultured in high glucose. Then the cells were divided into 5 groups: normal glucose group (5.5 mmol/L glucose, NG group), high glucose group (30 mmol/L glucose, HG group), high osmotic pressure control group (5.5mmol/L glucose plus 24.5 mmol/L mannitol, HO group), ACC2-shRNA group (30 mmol/L glucose plus ACC2-shRNA lentivirous), and NC-shRNA group (30 mmol/L glucose plus empty lentivirous carrying the green fluorescent protein as negative control). After treated for 96 h, morphology change of HKC cells was observed under microscope, intracellular lipid accumulation was obtained by Oil Red O staining, and E-cadherin and α-SMA protein levels were detected by Western blotting. Results High glucose induced morphology change and intracellular lipid accumulation of cultured HKC cells. Protein level of E-cadherin was decreased, while α-SMA was increased(P<0.05). Interference of ACC2 successfully restored high glucose stimulated morphology change and cellular lipid accumulation; the expression level of E-cadherin protein was increased and α-SMA protein was reduced. Conclusion Interference of ACC2 can ameliorate high glucosestimulated cellular lipid accumulation and epithelial mesenchymal transition, then improve renal fibrosis.
    Inhibitory effect of insulin on prostate cancer LNCaP cell line
    WANG Chen, TANG Yueqing, YAN Lei, JIAO Wei, ZHOU Zunlin, XU Zhonghua
    JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES). 2014, 52(7):  22-27.  doi:10.6040/j.issn.1671-7554.0.2014.175
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    Objective To study the inhibitory effect of insulin on LNCaP human prostate cancer cell line and its possible mechanism. Methods After LNCaP cells were treated with insulin, the expression of insulin receptor was detected with Real-time PCR, immunocytochemistry and Western blotting. The effects of insulin on cell growth, viability, migration and invasion were measured by cell counting, MTT, wound healing and Transwell. The activation of MAPK pathway was determined by Western blotting. Results Insulin increased the mRNA and protein expressions of INSR in LNCaP cells, and inhibited the cell growth, viability, migration and invasion. Expressions of key proteins in the MAPK pathway, including Ras, p-MEK and p-ERK, were significantly lowered by insulin. Conclusion Insulin can inhibit prostate cancer LNCaP cell line through MAPK signal pathway.
    Effect of Ifenprodil administered into the rostral anterior cingulate cortex on the pain-related aversion in rats with bone-cancer pain
    ZOU Xuli, GONG Benhang, ZHANG Mengyuan, FENG Hao, WANG Gongming
    JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES). 2014, 52(7):  28-31.  doi:10.6040/j.issn.1671-7554.0.2013.775
    Abstract ( 916 )   PDF (1935KB) ( 149 )   Save
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    Objective To investigate the effect of intra-rACC (rostral anterior cingulate cortex, rACC) administration of Ifenprodil on aversion related to bone-cancer pain. Methods Totally 30 male Wistar rats without place preference were randomly divided into three groups:control group (n=10), bone-cancer pain group (n=10) and Ifenprodil group (n=10). A total of 3 μL MADB-106 cells (4.8×109/mL) were inoculated into the right tibia bone marrow cavity in rats of the bone-cancer pain group and Ifenprodil group; rats of the control group were given the same dose of normal saline (NS). A total volume of 1.2 μL Ifenprodil was administered into the rACC on the 14th day after operation, while the control group and bone-cancer pain group were given the same dose of NS. The diversity of the mechanical stimulation withdrawal threshold was measured using Von Frey stimulation on the 1st day before the operation, and the 3rd, 7th, 10th, 12th and 14th day after the operation. On the 14th day after injection of Ifenprodil, the pain-related aversion in rats was observed. Results After the operation, the mechanical stimulation withdrawal threshold decreased obviously inrats of the bone-cancer pain group and Ifenprodil group from the 10th day to the 14th day (P<0.05). Group comparison showed that the pain threshold to mechanical stimulation of rats in the bone-cancer pain group and Ifenprodil group decreased significantly compared with that of the control group by day 10th, 12th and 14th after inoculation with the tumor cells (P<0.05). The residence time within chamber A was (30±4)% in bone-cancer pain group, lower than that of the (52±5)% in the control group (P<0.05). After Ifenprodil treatment, the residence time within chamber A of the Ifenprodil group was (42±5)%, higher than that of the bone-cancer pain group, but still lower than that of the control group (P<0.05). Conclusion Ifenprodil, a selective NR2B antagonist, administered into the rACC, can effectively alleviate pain-related aversion in rats with tibial bone cancer.
    Killing effect of apoptotic-tumor-cell-loaded dendritic cells on laryngeal carcinoma cells
    ZHANG Min, WANG Xuefeng
    JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES). 2014, 52(7):  32-36.  doi:10.6040/j.issn.1671-7554.0.2013.702
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    Objective To explore the killing effect of apoptotic-tumor-cell-loaded dendritic cells (DCs) on the laryngeal carcinoma cells. Methods DCs from peripheral blood monocytes were induced by recombinant human interleukin-4 (rhIL-4), recombinant human granulocyte/macrophage colony-stimulating factor (rhGM-CSF) and tumor necrosis factor (TNF-α) in vitro, then were divided into the apoptotic laryngeal carcinoma cells group, freeze-thaw cells group and untreated cells group 6 days later. After continuous culture of DCs for 4h, the expressions of the surface markers of DCs were detected by flow cytometry, the level of Interferon-γ (IFN-γ) was measured by ELISA, and the proliferation ability and killing effect of cytotoxic T lymphocyte (CTL) stimulated by DCs were evaluated by MTT. Results Compared with other groups, apoptotic laryngeal carcinoma cells group could enhance the expression of the surface markers CD83, CD86, HLA-DR and IFN-γ(P<0.05), and the proliferation ability and killing effect of CTL increased (P<0.05). Conclusion Apoptotic carcinoma cells can promote the differentiation and maturation of DCs, and induce effective and specific immune response against laryngeal carcinoma.
    Effect of Cuscuta chinensis Lam medicated serum on rat embryo limb bud cells and expressions of BMP-2 and CollagenⅡ
    LIU Xing, LI Xiaohong, WANG Yan, ZOU Congcong
    JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES). 2014, 52(7):  37-40.  doi:10.6040/j.issn.1671-7554.0.2013.715
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    Objective To explore the effect of Cuscuta chinensis Lam medicated serum on the proliferation and differentiation of limb bud cells, the mRNA expressions of bone morphogenetic protein 2 (BMP-2) and CollagenⅡ, and the protein expression of CollagenⅡ. Methods Different doses of Cuscuta chinensis Lam medicated serum and normal serum were prepared by serological pharmacological method. The hindlimb buds were amputated from SD rat embryos on day 15, then were made into cell suspension. The cells were cultured by the normal serum and the high, middle and low doses of Cuscuta Chinensis Lam medicated serum in vitro for 72 h, and were divided into the negative control group and high, middle and low dose groups, respectively. Limb bud cells proliferation was evaluated by MTT. Cells differentiation was evaluated by the cartilage cell colony numbers, which were stained with alcian blue. The mRNA expressions of BMP-2 and CollagenⅡwere analyzed by RT-PCR, and protein expressioin of CollagenII was analyzed by Western blotting. Results Compared with the negative control group, the cells differentiation in low and middle dose groups were faster (P< 0.05); the cartilage cell colony numbers in middle dose group were more, while those in high dose group were less (all P < 0.05); the expressions of BMP-2 mRNA in low and middle dose groups were higher and that in high dose group was lower (all P< 0.05); the expressions of CollagenⅡmRNA and protein in high, middle and low dose groups were higher (P< 0.05). Conclusion Different doses of Cuscuta chinensis Lam medicatedserum can promote cell proliferation and increase expressions of CollagenⅡmRNA and protein. High dose of Cuscuta Chinensis Lam medicated serum can inhibit limb bud cells differentiation by decreasing BMP-2 mRNA expression.
    Chemical constituents from Jubula pennsylvanica Steph
    WANG Shuqi, ZHOU Jinchuan, LIU Na, ZHANG Jiaozhen, WANG Xiaoning, LOU Hongxiang
    JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES). 2014, 52(7):  41-44.  doi:10.6040/j.issn.1671-7554.0.2014.154
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    Objective To study the chemical constituents of Jubula pennsylvanica Steph.. Methods The chemical constituents from the diethyl ether fraction of ethanol extract from Jubula pennsylvanica Jubula Steph. were isolated and purified by various chromatographic methods, including silica gel, Sephadex LH-20 columns, and semi-preparation HPLC. Structures of the isolated compounds were elucidated based on NMR and MS data, as well as by comparison with the previous data. Results Five compounds were obtained from Jubula pennsylvanica Steph. and identified as perrottetin E(1), riccardin D(2), marchantin C(3), isomarchantin C(4), and lunularin(5). Conclusion Compounds 1-5 are isolated from the plants in genus Jubula for the first time.
    A randomized clinical trial of ten-day concomitant, sequential and bismuth-based quadruple therapies for Helicobacter pylori
    LI Yueyue, ZUO Xiuli, JI Rui, CHEN Feixue, ZHAO Hongyu, WANG Han, GUO Jing, ZHANG Jingyuan, FU Shanshan, LIU Jianwei, LI Yanqing
    JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES). 2014, 52(7):  45-49.  doi:10.6040/j.issn.1671-7554.0.2013.750
    Abstract ( 930 )   PDF (1202KB) ( 380 )   Save
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    Objective To determine the best empiric regimens to eradicate Helicobacter pylori (Hp) in daily clinical work by comparing the efficacy of ten-day concomitant, sequential and bismuth-based quadruple therapies. Methods A total of 226 patients with H.pylori infection proved by rapid urease test (RUT) were randomly divided into 3 groups, and received concomitant therapy (omeprazole 20 mg, amoxicillin 1 000 mg, clarithromycin 500 mg and tinidazole 500 mg), sequential therapy (omeprazole 20 mg, amoxicillin 1 000 mg for the first 5 days, followed by omeprazole 20 mg, clarithromycin 500 mg and tinidazole 500 mg for another 5 days), and bismuth-based therapy (omeprazole 20 mg, amoxicillin 1 000 mg, clarithromycin 500 mg and colloidal bismuth pectin 200 mg), respectively. All regimens were taken twice a day for 10 days. Hp status was confirmed by 13C-urea breath test 6 weeks after completion of treatment, and negative result was considered as successful in Hp eradication. Results In intention-to-treat analysis, the eradication rates of concomitant therapy, sequential therapy and bismuth-based therapy were 85.6%, 70.7%, and 85.3%, respectively. Either concomitant therapy or bismuth-based therapy was significantly superior to sequential therapy (P<0.05). In per-protocol analysis, the eradication rates of the 3 regimens were 87.8%, 82.8% and 88.9%, respectively.And there was no statistic significance between any two of the three groups (P>0.05). Conclusion Ten-day bismuth-based therapy can be adopted as the best empiric regimen to cure Hp infection in clinical work.
    Expression of GRK6 in gastric carcinoma and its prognostic value
    ZHANG Zheng, SHEN Hongchang, FU Guobin, ZHANG Jianchao, WANG Weibo
    JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES). 2014, 52(7):  50-55.  doi:10.6040/j.issn.1671-7554.0.2014.002
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    Objective To investigate the expression of G protein coupled receptor kinase 6 (GRK6) in gastric carcinoma in order to examine its correlation with the clinicopathologial parameters and prognosis of gastric cancer. Methods GRK6 expressions in 132 malignant gastric carcinoma cases and 8 benign cases were detected with tissue microarray and immunohistochemistry technique. Relevant factors influencing GRK6 expression were analyzed statistically. Association between GRK6 expression and prognosis of gastric cancer was evaluated with reference to follow-up data. Results The high expression rate of GRK6 in gastric carcinoma was 49.17%, and the low expression rate was 50.83%. Multivariate logistic regression analysis disclosed that there was correlation between GRK6 expression and poor differentiation (P<0.05). The 5-year overall survival rates of patients with high and low GRK6 expressions were 28.81% and 67.21%, respectively (P<0.05). Multivariate Cox regression analysis showed that GRK6 was an independent prognostic factor of gastric cancer (P<0.05). Conclusion GRK6 expression in gastric carcinoma is significantly higher than in benign cases. The overexpression of GRK6 is closely correlated with histological differentiation. GRK6 may play an important role in the occurrence and development of gastric carcinoma.
    Expression and clinical-pathological significance of NRP2 in gastric carcinoma
    LIAN Haifeng, LI Ming, LIU Chengxia, JIA Xingfang, LI Dan
    JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES). 2014, 52(7):  56-59.  doi:10.6040/j.issn.1671-7554.0.2013.760
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    Objective To explore the expression and clinical significance of neuropilin-2 (NRP2) in gastric carcinoma (GC). Methods A total of 65 gastric carcinoma and adjacent non-tumorous specimens were collected. NRP2 protein and mRNA were detected with quantitative real time PCR (qRT-PCR) and Western blotting, and clinicopathological parameters of gastric carcinoma were analyzed. Results There was a significantly higher expression of NRP2 in GC tissues compared with in adjacent non-tumorous tissues in both gene and protein levels (P<0.05). Statistical analysis revealed that NRP2 expression in GC tissues was positively correlated with tumor size, lymph node metastasis, depth of infiltration, TNM stage and distant metastasis, but not with gender, age and histological classification (P>0.05). Conclusion NRP2 expression is up-regulated in gastric carcinoma and may play important roles in the metastasis and development of gastric carcinoma, which suggests NRP2 may be a potential target of therapy for GC.
    Robotic versus laparoscopic low anterior resection:a meta-analysis
    XU Huirong, LI Jianning, LI Zengjun, XU Zhongfa
    JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES). 2014, 52(7):  60-65.  doi:10.6040/j.issn.1671-7554.0.2013.700
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    Objective To compare the short-term efficacy of robotic low anterior resection (R-LAR) versus laparoscopic low anterior resection (L-LAR) for rectal cancer with meta-analysis. Methods Databases including Medline, Embase, Ovid, CNKI and WANFANG were searched for studies that compared clinical or oncologic outcomes of R-LAP and L-LAP. Relevant published and unpublished data and references were also retrieved. The methodological quality of the incorporated researches was evaluated by two reviewers independently, and RevMan 5.2 software was used for meta-analysis. Results Six studies with 375 patients were included in the analysis. The results showed that R-LAP had longer hospital stay[MD=-1.09, 95%CI(-1.95 to -0.22), P=0.01], lower conversion rate[OR=0.09, 95%CI(0.02 to 0.47), P=0.005], lower circumferential margin involvement positive rate[OR=0.3, 95%CI(0.11 to 0.83), P=0.02], lower overall complication rate[OR=0.55, 95%CI (0.32 to 0.95), P=0.03] compared with L-LAP. There was no difference in operation time[MD=34.25, 95%CI(-5.09 to 73.58), P=0.09] and the number of cleared lymph nodes[MD=1, 95%CI(-0.67 to 2.67), P=0.24]. Conclusion Compared with L-LAR, R-LAR produces more favorable postoperative and oncologic outcomes.
    Application of 128-slice 4DCT whole-liver perfusion imaging in hepatic tumor
    YU Yongmei, ZHAN Hua, ZHU Jianhui, WANG Wencheng, GUO Meiling
    JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES). 2014, 52(7):  66-70.  doi:10.6040/j.issn.1671-7554.0.2014.162
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    Objective To investigate the significance of 128-slice 4D CT whole liver perfusion imaging in the diagnosis of hepatic tumor. Methods Data of 45 cases of primary liver carcinoma and 40 cases of liver hemangioma obtained from 128 CT of the whole liver perfusion scan were processed with the perfusion software, automatically generating 4D-CTA images. Blood flow (BF), arterial liver perfusion (ALP), portal venous perfusion (PVP) and hepatic perfusion index (HPI) were analyzed. With reference to the parameters, the blood vessels supply of liver tumor, intrahepatic vessel occlusion, stricture and embolism were evaluated. Results ① The BF, ALP and HPI in primary liver carcinoma were obviously higher than those of surrounding lesions within 1cm in hepatic parenchyma (P<0.01); the PVP of primary liver carcinoma reduced significantly; the BF, ALP and HPI of liver hemangioma were higher than those of peripheral parenchymal (P<0.05); the BF and ALP of liver hemangioma lesions were higher than those of primary liver cell cancer focus (P<0.05) and the HPI was lower than that of primary liver cell cancer focus (P<0.05); the PVP of primary liver cell carcinoma focus was reduced compared with liver hemangioma (P<0.01). ② Of the 45 patients with primary liver carcinoma, 28 had cancer of feeding artery; 20 had thickened, rigid, disorder or distorted feeding artery; 14 had portal venous embolism. Of the 40 cases of liver hemangioma, blood vessels were pulled in 23cases. Conclusion 128-slice 4D CT whole liver perfusion imaging can accurately reflect the hemodynamic characteristics of primary hepatic carcinoma and hepatic hemangioma, showing great clinical significance in the early diagnosis, differential diagnosis, choice of surgical approach and prognosis for hepatic tumor.
    Clinical and pathological characteristics of breast carcinoma in women aged 35 years or younger
    SUN Ying, YU Jing, WEI Junmin, FAN Cong, WANG Xiuwen, GAO Peng, JIANG Liyu, MA Tingting
    JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES). 2014, 52(7):  71-74.  doi:10.6040/j.issn.1671-7554.1.2014.003
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    Objective To analyze the clinical and pathological features of breast cancer in women under 35 years of age. Methods 153 breast cancer patients aged 35 or younger treated from Jan. 1, 2007 to Dec. 31, 2012 were retrospectively reviewed. The characteristics of breast cancer onset and clinical and pathological features in different molecular subtypes of breast cancer were analyzed by SPSS 17.0 statistics software. Results The most common symptom among young patients was breast lumps, and 107 (69.9%) of the patients went to the hospital within six months as soon as the symptom was appeared. Among these 153 samples, 22 (14.4%) were diagnosed as having ductal carcinomas in situ, and 131 (85.6%) had invasive cancers. In addition, based on immunohistochemistry, the invasive cancers were categorized into four molecular subtypes: luminal A (30, 22.9%), luminal B (65, 49.7%), Her-2 over-expression (18, 13.7%) and basal-like (18, 13.7%). The most invasive cancers were in histological grades Ⅱ (76, 58.0%) and Ⅲ (2, 24.4%). In luminal A subtype, the diameter≤2 cm and histological grade Ⅰ ranked higher than in any other subtypes. There were no significant differences among different subtypes regarding lymph node metastasisand clinical stage. The invasive cancers had a high positive rate of Ki67, with an average of (30.12±3.91)%. Conclusion The clinical stages of young breast cancer patients are more advanced; tumor diameter and histological grade are closely related with molecular subtypes; the high positive rate of Ki67 and the high proportion of the molecular subtypes with adverse prognosis imply poor prognosis. We should pay more attention on the early diagnosis of young patients.
    Influence of biological rhythm on delivery mode of pregnant women receiving analgesia
    BAO Ju, QU Yuan, WANG Dongxin
    JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES). 2014, 52(7):  75-77.  doi:10.6040/j.issn.1671-7554.1.2014.005
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    Objective To study the effect of biological rhythm on delivery mode. Methods In this retrospective cohort study, 2 051 nulliparas with term singleton cephalic pregnancy who were in spontaneous labor and preparing to deliver vaginally and received epidural analgesia were included. The parturients were divided into four groups according to the delivery time, i.e., morning group (7:01 to 13:00), afternoon group (13:01 to 19:00), evening group (19:01 to 1:00), and night group (1:01 to 7:00).The delivery mode and parameters were compared among the four groups. Results ①No significant differences on maternal demographic factors including age, height, weight, gestational age and pregnancy complications were found among the four groups (P>0.05). ②Significant difference was shown among the four groups in delivery mode (P<0.01).The rate of cesarean section was significantly higher in night group than in the other groups (P<0.05). ③Neonatal birth weight was higher in afternoon and evening groups than in morning and night groups. Conclusion Biological rhythm seems to influence the delivery mode,and the rate of cesarean section is the highest in evening periods.
    Expressions of TGF-β1 and α-SMA in autosomal dominant polycystic kidney disease
    QUE Xinxiang, DING Sentai, WU Fei, BI Dongbin, LÜ Jiaju, DING Kejia
    JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES). 2014, 52(7):  78-81.  doi:10.6040/j.issn.1671-7554.0.2014.087
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    Objective To investigate the expressions and mechanism of transforming growth factor-β1 (TGF-β1) and alpha smooth muscle actin (α-SMA) in autosomal dominant polycystic kidney disease (ADPKD). Methods According to the preoperative glomerular filtration rate (GFR) of abnormal kidney, 62 ADPKD patients were divided into two groups: high GFR group (group A, n=29), and low GFR group (group B, n=33). Another 20 patients treated with radical nephrectomy were chosen as controls(the control group). Kidney tissues from patients in groups A and B, and tumor-adjacent tissues from the controls were collected. Expressions of TGF-β1 and α-SMA of the three groups were detected with immunohistochemical method. Results TGF-β1 and α-SMA were positively expressed in groups A and B, with cord-like or patch-like distribution in the renal interstitial fibrosis area. No significant expression was found in the control group. The positive expression rate of α-SMA in groups A and B was statistically significant (P<0.05). The expressions of TGF-β1 and α-SMA were positively correlated (P<0.05). Conclusion TGF-β1 and α-SMA are highly expressed in ADPKD, both of which promote epithelial-to-mesenchymal transition, leading to renal fibrosis.
    Meta-analysis for consumption of cruciferous vegetables and the morbidity risk of renal cell carcinoma
    ZHAO Long, GUAN Guangju
    JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES). 2014, 52(7):  82-89.  doi:10.6040/j.issn.1671-7554.0.2014.156
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    Objective To evaluate the association between cruciferous vegetables (CV) consumption and the risk of renal cell carcinoma (RCC). Methods After the retrieval strategy and criteria for inclusion and exclusion were formulated, databases of ProQuest, Web of Science, EMBASE and PUBMED were searched for literatures publicized during Jan. 1966 to Dec. 2013. Pooled relative risks (RR) and the corresponding 95% confidence intervals (CI) were estimated by random-effect and fixed-effect models. Meta-regression was used to detect potential sources of heterogeneity. Subgroup analyses, cumulative meta-analysis and sensitivity analysis were also conducted. Results A total of 12 studies (6 case-control, 6 cohorts) were included in the analysis, involving 1 228 518 participants (5 773 RCC cases). An obvious negative correlation was found between CV and RCC risk [RR=0.81, 95% CI (0.72-0.91)]. In subgroup analyses, CV was obviously related to lower RCC risk among studies carried out in America [RR=0.77, 95%CI (0.70-0.86)]; nevertheless, CV had no obvious correlation with RCC risk among studies carried out in Europe [RR=0.87, 95%CI (0.71-1.07)]. Conclusion The results of the present Meta-analysis indicated that high consumption of CV is negatively correlated with RCC risk in Americans.
    Efficacy of laparoscopic bladdeconstr horn technique in the treatment of long-distance lower ureteral stenosis
    LI Guanbin, WANG Hanbo, GUO Xudong, REN Xiangbin, XIANG Yuzhu, JIN Xunbo, JIANG Shaobo
    JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES). 2014, 52(7):  90-93.  doi:10.6040/j.issn.1671-7554.0.2014.151
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    Objective To explore the efficacy of laparoscopic bladdeconstr horn technique in the treatment of long-distance lower ureteral stenosis. Methods Data of 10 patients with long-distance lower ureteral stenosis treated in our center during Sept. 2008 to May 2013 with laparoscopic bladdeconstr horn technique were retrospectively analyzed. The patients included 6 males and 4 females, aged 14-65 years (average 40 years). The length of stenosis segment was 4-6 cm (average 5 cm). All patients underwent laparoscopic bladdeconstr horn technique operation and D-J tube was indwelt for 2-3 months after the operation. Results All operations were successful. Operation time was 120-180 min, average 126 min; bleeding volume 30-150 mL, average 64 mL; postoperative hospital stay 7-14 days, average 9.4 days. The D-J tube was removed after 2-3 months. CT and urinary tract ultrasonography were performed 6 and 12 months after the operation. The results showed that the patients' hydronephrosis was remarkably reduced. Conclusion Laparoscopic bladdeconstr horn technique is an effective minimal method to treat long-distance lower ureteral stenosis with advantages of small trauma, quick recovery and short hospital stay.
    Esthetic evaluation of Cerec 3D anterior ceramic veneers
    HONG Yanqing, JIANG Tao, DONG Xiwen
    JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES). 2014, 52(7):  94-98.  doi:10.6040/j.issn.1671-7554.0.2013.741
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    Objective To observe the short-term effects of clinical application of Cerec 3D anterior ceramic veneers in the restoration of anterior teeth. Methods A total of 62 teeth were restored with Cerec 3D anterior ceramic veneers in 32 patients. The evaluation started 1 week after luting. The veneers were examined with reference to the modified US Public Health Service (USPHS) criteria at baseline and every 6-12 months. Results During the follow-up of 6-33 months (mean 22 months), all veneers scored B or above, and 56 out of 62 scored A. No debonding, fracture or secondary caries were observed. Between baseline and follow-up examinations, non-significant shift from A to B occurred. Six veneers scored B because of slight difference in translucency and chroma. Conclusion Cerec 3D anterior ceramic veneers obtain a favorable clinical effects in the short term. The correct choice of the translucency and chroma of the ceramic blocks and additional staining contribute to a better esthetic result.
    Dental development of male patients with complete unilateral cleft lip and palate
    SHEN Yong, FAN Cunhui, YANG Qian, XIA Qing, XUE Qing, XIAO Wenlin
    JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES). 2014, 52(7):  99-101.  doi:10.6040/j.issn.1671-7554.1.2014.002
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    Objective To evaluate the dental development of male patients with unilateral cleft lip and palate (UCLP). Methods A total of 40 male UCLP patients aged 6 to 14 years were selected as cleft lip and palate group(CLP group). Another 40 age- and race-matched non-CLP male individuals were chosen as control group. Panoramic radiographs were taken for the patients. Their dental maturity index was evaluated with the panoramic radiographs,according to Demirjian's method. Results In the mandibular teeth of the CLP group, the dental maturity index of the cleft side was lower than that of the non-cleft side (P<0.01). Compared with the control group, the CLP group had lower dental maturity index in the mandibular teeth and the maxillary teeth of the non-cleft side(P<0.05). Conclusion Compared with non-CLP male individuals, male patients with UCLP have a delay in the dental development.
    Clinical application of vacuum assisted closure technology in children with damaged wounds
    SHANG Niansheng, HUO Ran, LÜ Renrong, XU Guangqi, ZHAO Ran
    JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES). 2014, 52(7):  102-105.  doi:10.6040/j.issn.1671-7554.0.2014.123
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    Objective To explore the clinical application and curative effect of vacuum assisted closure (VAC) in children with damaged wounds. Methods Primary debridement and VAC technique (-25 to -125 mmHg, 1 mmHg=0.133 kPa) were applied to the damaged wounds of 14 children. The VAC dressing was changed every 5 to 7 days. Razor thin skin graft or intermediate split thickness skin graft were conducted when abundant granulation tissue was observed. Wounds after skin grafting were still covered by VAC dressing for 5 to 7 days, and then survival rate of grafted skin was measured and recorded. Results Abundant granulation tissues were observed in all the 14 wounds. Grafted skin survived well in 12 wounds. Partial necrosis was seen in one grafted wound, which healed well after simple treatment. The other wound epithelized spontaneously without skin grafting. Conclusion VAC technique can promote the growth of granulation tissue, improve the blood flow to the wound, increase the survival rate of grafted skin, accelerate the wound healing, and ease the suffering of children. It is worthy of popularizing and applying in clinic.
    Latest research progress of Middle East respiratory syndrome
    GENG Xingyi, ZHANG Ji, JIA Tanghong, XIANG Nijuan, REN Ruiqi, YANG Fuqiang
    JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES). 2014, 52(7):  106-108.  doi:10.6040/j.issn.1671-7554.0.2014.312
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    In September 2012, the World Health Organization(WHO) reported 2 cases of novel coronavirus infection whose clinical manifestation was similar to those infected by SARS. In May 2013, WHO named the novel coronavirus infection disease as "Middle East respiratory syndrome(MERS)". Recently, the number of infectious cases is increasing in the Middle East including Saudi Arabia and some European countries. The high mortality rate has caused extensive concern around the world. The latest progress of MERS on its incidence, epidemiology, etiology as well as prevention and control is reviewed in the current review.