Serum levels of miR‐21 and miR‐155 in T2DM + CHD patients and their relationship with lipid me‐tabolism／ / 心血管康复医学杂志

To explore serum levels of miR‐21 and miR‐155 in patients with T2DM complicated CHD and their relationship with lipid metabolism .Methods : A total of 134 T2DM patients treated in our hospital from 2016 to 2017 , were divided into T2DM + CHD group (n＝60) and pure T2DM group (n＝74).Blood glucose and blood lipid levels and serum miR‐21 and miR‐155 levels were measured and were compared between two groups .Results :There were no significant difference in general data , blood pressure , body mass index (BMI) , glycosylated hemo‐globin A1c (HbA1c) , plasma glucose and total cholesterol (TC) between two groups , P＞0. 05 all.Compared with pure T2DM group , there were significant rise in levels of triglyceride (TG) [ (1. 89 ± 0.92) mmol／L vs.(2. 75 ± 1.61) mmol／L] , LDL‐C [ (2.83 ± 0.79) mmol／L vs.(3. 52 ± 1.24) mmol／L] and serum miR‐21 [ (0. 93 ± 0. 15) vs.(1. 86 ± 0.24 )] , and significant reductions in levels of HDL‐C [ (1.35 ± 0. 34 ) mmol／L vs.(0. 94 ± 0.31 ) mmol／L] and serum miR‐155 [ (0. 95 ± 0.19) vs.(0. 27 ± 0. 10)] in T2DM + CHD group , P＝0.001 all.Multiva‐riate Logistic regression analysis indicated that TG , LDL‐C and miR‐21 were independent risk factors for T2DM +CHD (OR＝2. 800～4. 986 , P＜0.05 all) , while HDL‐C and miR‐155 were its independent protective factors (OR＝0.314 , 0.327 , P＜ 0.05 both).Pearson correlation analysis indicated that serum miR‐21 level was significant positively correlated with TG and LDL‐C levels ( r＝0. 415 , 0.506 , P＜0.05 or ＜0. 01) , and serum miR‐155 level was significant inversely correlated with TG and LDL‐C levels ( r＝ －0. 397 ,－0. 526 , P＜0.05 or ＜0. 01 ).Con‐clusion : Serum miR‐21 level was significant positively correlated with TG and LDL‐C levels , but serum miR‐155 level was significant inversely correlated with TG and LDL‐C levels ,

Influence of ticagrelor on myocardial injury in patients with acute myocardial infarction after emergen-cy PCI / 心血管康复医学杂志

Objective :To explore influence of ticagrelor on myocardial injury ,serum levels of N terminal pro brain natriuretic peptide (NT-proBNP) ,tumor necrosis factor (TNF)-α and endothelin (ET) in patients with acute myo-cardial infarction (AMI) after emergency percutaneous coronary intervention (PCI).Methods : A total of 94 AMI patients undergoing emergency PCI were selected ,and were divided into clopidogrel group (n＝ 45 ) and ticagrelor group (n＝ 49 ) ,two groups received postoperative dual-antiplatelet therapy of aspirin combined clopidogrel or ti-cagrelor respectively .After one-month treatment ,index of microcirculatory resistance (IMR ) ,coronary flow re-serve (CFR ) , serum levels of NT-proBNP , TNF-α , ET , and incidence of major adverse cardiovascular events (MACE) within one year were compared between two groups .Results : Compared with clopidogrel group after 12- month treatment ,there were significant reductions in IMR [21-24 ± 4-07 ) vs.(15-33 ± 4-82)] ,serum levels of NT-proBNP [(123-17 ± 16-25) ng／L vs.(63-46 ± 12-13) ng／L] ,TNF-α [(4-04 ± 0-84) mg／L vs.(3-07 ± 0-52) mg／L] ,ET-1 [ (48-71 ± 6-53) ng／L vs.(38-04 ± 5-89) ng／L] ,and significant rise in CFR [ (1-73 ± 0-34) vs. (2-36 ± 0-42)] in ticagrelor group , P＝ 0-001 all .Incidence rate of MACE in ticagrelor group was significantly lower than that of clopidogrel group (6-12% vs .24-44%, P＝ 0-018 ).Conclusion : Compared with clopidogrel group ,ticagrelor group possesses significant therapeutic effect in AMI patients after emergency PCI .And it′s safe .

Expression of estrogen receptor, progesterone receptor and leukemia inhibitory factor on endometrium during different ovarian stimulation protocols in mice / 浙江大学学报·医学版

<p><b>OBJECTIVE</b>To evaluate the influence of superovulation by GnRHa protocol and pregnant mare's serum gonadotropin (PMSG) alone on the expression of estrogen receptor (ER), progesterone receptor (PR) and leukemia inhibitory factor (LIF) mRNA on endometrium.</p><p><b>METHODS</b>Forty-five female ICR mice were randomly allocated into 3 groups:(1) GnRHa+PMSG group: alarelin was give first for desensitizing the pituitary, then superovulation with PMSG; (2) PMSG group: mice were injected with PMSG only; (3) Natural cycle group: mice were given with same volume of saline. Endometrium samples were taken at 48 hours after given hCG or ovulation (control group). ER and PR in glandular cells were detected with SP immunohistochemistry semiquantitatively. Expression of LIF mRNA on endometrium was detected with reverse transcriptase-polymerase chain reaction (RT-PCR) analysis.</p><p><b>RESULT</b>The positive rate(%) and expression intense (AU) of ER and PR on glandular epithelium cells were significantly lower in GnRHa+PMSG group and PMSG group than those in natural cycle group (all P <0.01). The expression of LIF mRNA was significantly lower in GnRHa+PMSG group and PMSG group than that in natural cycle group (all P <0.01); but the expressions of ER, PR and LIF in GnRHa+PMSG group were higher than those in PMSG group.</p><p><b>CONCLUSION</b>The protocol with GnRHa down regulates the expressions of ER, PR and the LIF mRNA on the mice of secretive phase endometrium, suggesting it may have an adverse effect on the endometrial receptivity in mice, but it may still be better than PMSG alone.</p>

Value of computed tomography in the staging and predicting resectability of primary advanced ovarian carcinoma / 中华肿瘤杂志

<p><b>OBJECTIVE</b>To assess the value of computed tomography( CT) in the staging and predicting respectability of primary advanced ovarian carcinoma.</p><p><b>METHODS</b>The data of preoperative abdomen and pelvis CT scan in 64 women with Stage II or IV ovarian carcinoma were collected from tumor registry database. All CT scans were analyzed retrospectively without knowledge of the operative findings, and the stage as based on CT was compared with the surgical and pathological findings. Residual lesion of < or = 2 cm in maximal diameter was considered as an optimal surgical result. Twenty-senven of these 64 patients (42.2%) underwent optimal cytoreduction surgery for residual disease C2 cm in diameter. Based on the ability of each parameter in predicting cytoreductive surgery outcome, 11 radiographic features were selected for the final model. Each predictive parameter was assigned a numeric value (1 to 7). Sensitivity, specificity, positive predictive value( PPV) , negative predictive value( NPV),and accuracy were calculated for each predictive parameter. Receiver operating characteristic( ROC) curve was used to assess the ability of the model to predict surgical outcome. The correlation between CT stage and surgical-pathologic stage was analyzed by Chi-square test and Spearman's rho analysis.</p><p><b>RESULTS</b>The overall accuracy of CT staging for advanced ovarian carcinoma was 87. 5% ; 86. 5% and 91.7% for stage III and IV patients respectively. The correlation between CT stage and surgicopathologic stage was found to be comformable. In the final predictive index model, when a predictive index scoreed > or = 2, the overall accuracy, sensitivity and specificity was 70. 3% , 67.6% and 74. 1% for identifying patients for suboptimal surgery. The PPV and the NPV was 78. 1% and 62. 5% , respectively. The ROC curve was generated with an area under the curve = 0. 792+/-0. 055 using the predictive index scores.</p><p><b>CONCLUSION</b>CT has a high accuracy in staging and a moderate ability to predict resectability for advanced ovarian carcinoma. Therefore, the predictive index model may be useful in the management of ovarian carcinoma patients.</p>

Telomerase RNA antisense oligonucleotides inhibit growth of human choriocarcinoma xenograft in nude mice / 中华肿瘤杂志

<p><b>OBJECTIVE</b>To study the inhibitory effect of antisense oligonucleotides against telomerase RNA on the growth of human choriocarcinoma transplant in nude mice.</p><p><b>METHODS</b>Choriocarcinoma xenografts were established by transplanting JAR cells subcutaneously to female nude mice, and were treated with high and low doses of antisense oligonucleotides. Control groups were treated with NS, random sequence and actinomycin D (Act-D). Tumor growth was monitored once every other day. Telomerase relative activity was assayed by TRAP-ELISA. Western blotting was used to detect expression of hTERT.</p><p><b>RESULTS</b>Low and high doses antisense oligonucleotides, and Act-D inhibited tumor growth by 76.6%, 93.8% and 85.4% respectively, which were significantly different when compared with random sequence and NS groups. Expression of telomerase relative activity and hTERT were decreased as well. But the differences among the first three groups had no significance.</p><p><b>CONCLUSION</b>Telomerase RNA antisense oligonucleotide inhibits growth of human choriocarcinoma xenografts in nude mice. It may be a novel approach to the treatment of choriocarcinoma.</p>

Expression of R2 protein in gestational trophoblastic diseases / 浙江大学学报·医学版

<p><b>OBJECTIVE</b>To study the expression of the small subunit ribonucleotide reductase (R2) in gestational trophoblastic diseases (GTD) and to assess its prognostic value.</p><p><b>METHODS</b>The expression of R2 was detected with immunohistochemical method in 15 cases of normal villi, 38 cases of hydatidiform mole (HM), 42 cases of invasive moles (IM) and 18 cases of choriocarcinoma (CC).</p><p><b>RESULTS</b>R2 expression in HM, IM and CC was significantly increased compared with that of normal villi (P=0.000). There were no significant differences in R2 protein expression among HM, IM and CC. Among 38 cases of HM, R2 expression in 8 cases with malignant transformation was significantly higher than in 30 cases of non-malignant transformation mole (P=0.02). Preoperative chemotherapy of gestational trophoblastic tumor including IM and CC did not influence the R2 expression. Compared with patients of stage I (WHO), the R2 protein in gestational trophoblastic tumor (GTT) patients of stage III or stage II was significantly increased (P=0.023 and P=0.038, respectively). The value of R2 in GTT patients with middle or high risk in WHO prognostic scoring system was higher than in the patients with low risk (P=0.018 and P=0.006, respectively).</p><p><b>CONCLUSION</b>R2 expression in GTD is increased, which may be associated with the hyperplasia of trophoblasts, malignant transformation of hydatidiform mole and drug resistance of trophoblastic tumor.</p>

Establishment of two-dimensional electrophoresis of uterine leiomyoma for the proteome analysis / 浙江大学学报·医学版

<p><b>OBJECTIVE</b>To establish and optimize the two-dimensional electrophoresis (2-DE) of uterine leiomyoma for the proteome analysis.</p><p><b>METHODS</b>Run immobilized pH gradient (IPG)-isoelectric focusing electrophoresis as the first dimension, then vertical SDS-PAGE electrophoresis as the second dimension. A series of important steps,such as sample solubility, volume of loading, electrophoresis parameters and protocol for staining were optimized.</p><p><b>RESULTS</b>The 2-DE patterns of uterine leiomyoma and myometrium with good quality were obtained.</p><p><b>CONCLUSION</b>With optimal condition the two-dimensional electrophoresis of uterine leiomyoma can be obtained.</p>

Mast cells in cellular leiomyoma and endometrial stromal sarcoma of the uterus / 中华肿瘤杂志

<p><b>OBJECTIVE</b>To study the role of mast cells in the differential diagnosis of cellular leiomyoma and endometrial stromal sarcoma of uterus and its mechanism.</p><p><b>METHODS</b>Using SP immunohistochemical technique, the expression of proliferating cell nuclear antigen (PCNA) and mast cells in 25 cellular leiomyoma (CL) and 26 endometrial stromal sarcoma (ESS) of uterus were examined. The expression of estrogen receptor (ER) and CD44v3 in cellular leiomyoma was also studied.</p><p><b>RESULTS</b>The expression of PCNA was not significantly different from CL or ESS (P > 0.05), while mast cell count was statistically different between them (P < 0.01). Using a value of less than 7 mast cells per high power field was useful for the diagnosis of ESS, yielding 100% sensitivity and 92.0% specificity. There was a positive correlation between the mast cell count and CD44v3 in CL (r(s) = 0.589, P < 0.01), though no correlation was observed between mast cell count and PCNA or ER.</p><p><b>CONCLUSION</b>Number of mast cells is valuable for the discrimination of CL from ESS in the uterus. The mechanism and the role of higher quantity of mast cells in CL need further study.</p>

Inhibitory effect of tumor suppressor PTEN on cell growth of endometrial carcinoma / 中华肿瘤杂志

<p><b>OBJECTIVE</b>To evaluate the inhibitory effect of tumor suppressor PTEN on cell growth of endometrial carcinoma.</p><p><b>METHODS</b>The exogenous wild PTEN cDNA via an adenoviral vector (Ad-PTEN) was introduced into Ishikawa cells. The expression of PTEN protein was detected by Western blot. The growth of Ishikawa cells was evaluated by trypan blue exclusion method and MTT.</p><p><b>RESULTS</b>The expression of PTEN protein was induced on day 1, and greatly increasing on day 3 - 5 after Ad-PTEN infection. The expression of PTEN significantly inhibited the growth of Ishikawa cells, and also significantly inhibited the growth of Ishikawa cells induced by IGF-II.</p><p><b>CONCLUSION</b>Adenovirus-mediated introduction of exogenous PTEN into human endometrial carcinoma cells can induce growth suppression. PTEN gene may be a novel therapeutic agent for endometrial carcinoma.</p>

Changes in gene expression profiles of hydatidiform mole and choriocarcinoma as compared with trophoblast hyperplasia / 中华肿瘤杂志

<p><b>OBJECTIVE</b>To study the relationship of changes in gene expression profiles of hydatidiform mole and choriocarcinoma with hyperplasia of trophoblasts.</p><p><b>METHODS</b>The differentially expressed genes were analyzed in two pairs of tissues of hydatidiform mole versus normal villi, and in two pairs of normal primary culture trophoblasts versus JAR cell line of chariocarcinoma, using cDNA microarray containing 4096 genes. To confirm the results of cDNA microarray analysis, expressions of some up-regulated genes related to DNA synthesis in normal villi, hydatidiform mole, and 2 choriocarcinoma cell lines (JAR and JEG-3) were examined by immunohistochemistry, immunoblotting and RT-PCR.</p><p><b>RESULTS</b>A total of 89 genes were differentially expressed in all hydatidiform moles, accounting for 2.2% of the genes arrayed. Of the 89 genes, 24 were up-regulated and 65 were down-regulated. Compared with normal primary trophoblasts, there were 433 genes up-regulated and 380 genes down-regulated in JAR cell line. Forty six genes were up-regulated in both hydatidiform mole and choriocarcinoma, while 13 genes were down-regulated. Some genes associated with cell proliferative inhibition were significantly down-regulated, whereas those associated with cell proliferation, malignant transformation, metastasis and drug resistance were highly up-regulated. The expressions of thymidine kinase 1, the small subunit of ribonucleotide reductase (RRM2) were significantly increased in hydatidiform mole, JAR and JEG-3 cells.</p><p><b>CONCLUSION</b>Abnormal expression of genes exists in hydatidiform mole and choriocarcinoma. Hyperplasia of trophoblasts may be related to over-expression of genes coding for synthetic enzymes.</p>

Preliminary study on gene expression profile of endometrial adenocarcinoma / 中华肿瘤杂志

<p><b>OBJECTIVE</b>To determine candidate genes of endometrial adenocarcinoma.</p><p><b>METHODS</b>To compare the gene expression profile in 2 endometrial adenocarcinoma tissues and 2 normal endometria by HGEC-40s GeneChip probe including 4096 genes array. Expression differences between normal and malignant tissue groups were measured by GenePixPro3.0 software.</p><p><b>RESULTS</b>350 genes with a ratio below 0.5 and above 2.0 showed discrimination between normal and malignant groups. Thirty three genes with ratio above 3 were up-regulated, forty-four genes with ratio below 0.3 were down-regulated.</p><p><b>CONCLUSION</b>The overexpression of oncogenes with their disturbed or constitutively activated signal transduction cascades alone or in combination with the mutation-induced silencing of tumor suppressor genes is associated with malignant transformation.</p>

Microvessel density, epithelial-stromal vascular cuffing and expression of vascular endothelial growth factor in human cervical carcinoma / 浙江大学学报·医学版

<p><b>OBJECTIVE</b>To observe microvessel density(MVD), epithelial stromal vascular cuffing(VC) and expression of vascular endothelial growth factor(VEGF) in human cervical carcinomas and to clarify their significance in the invasion and metastasis of cervical carcinoma.</p><p><b>METHODS</b>VEGF and CD34 were stained immunohistochemically (SP) in 57 cases of cervical carcinoma (30 cases of squamous cell carcinoma, 20 of adenocarcinoma 7 of glandular and squamous cell carcinoma), 29 cases of cervical intraepithelial neoplasia (CIN) and 16 cases of normal cervices, meanwhile, MVD and VC were also assayed.</p><p><b>RESULTS</b>There were significant differences among the above 5 groups for MVD P<0.01 . The VC pattern showed a significant difference between cervical carcinoma and CIN or control group P<0.01). The positive rates of VEGF in normal cervical epithelium, CIN, squamous cell carcinoma, adenocarcinoma, glandular and squamous cell carcinoma were 18.8% 3/16, 82.8% 24/29), 93.3% 28/30), 100% 20/20 and 7/7(100%), respectively. There were significant differences between these cervical lesion groups and the control group(P<0.001). The MVD showed significant differences between the positive pelvic node metastasis and negative pelvic node metastasis P<0.05). There was no significant correlation between the expression of VEGF and the tumor diameter, clinical stage, pathologic grade and pelvic node metastasis.</p><p><b>CONCLUSION</b>The expression of VEGF may play an important role in the angiogenesis of cervical carcinoma. Degree of malignancy of cervical carcinoma has a close association with microvessel density.</p>