Objective To explore the significance and practical value of videomorphometric analysis in differential diagnosis of the thyroid gland in benign and malignant follicular lesions. Methods A videomorphometric analysis of surgically resected thyroid follicular tumors and normal thyroid gland was respectively performed with CMM-3 image analysis system. 50-100 tumor cell nuclei each case were studied at random for their area, perimeter, average diameter, shape factor and atypical index.Results Hightly significant statistical difference was observed in every parameter between normal and malignant, benign and malignant cases.Conclusion It is suggested that videomorphometry is an useful tool for the differential diagnosis of benign from malignant tumors of thyroid gland.

Obej ctive To investigate the role of metastasis associated protein 1(MTA1)in estrogen reg-ulated expression of matrix metalloproteinase -9(MMP-9)and tissue inhibitor of metalprotease -1(TIMP-1) in estrogen receptor( ER ) positive breast cancer cells .Methods MTA1 knockdown cell model was generated based on MCF-7breast cancer cell line by transfected with MTA 1-shRNA.The mRNA and protein level of MMP-9 and TIMP-1 in wild type MCF-7(MCF-7WT)and MCF-7MTA1-shRNA before and after 17β-estradiol ( E2) treatment were examined by Real -time PCR and Western blot respectively .Results The MTA1-shRNA showed maximally 84.9%suppression of MTA1 expression in MCF-7,suggesting a satisfied MTA 1 knockdown cell model was established for subsequent experiments .After treated with E2 for 48 h,MCF-7WT showed an incre-ment of 46%(P<0.05)and 37%(P<0.05)of the mRNA and protein level of MMP -9 and a decrement of 32.3%( P<0.05)and 18.2%(P<0.05)of TIMP-1;MCF-7MTA1-shRNA showed a decrement of 32.3%(P<0.05)and 18.2%(P<0.05)of mRNA and protein expression of MMP -9 respectively but no significant differ-ence in TIMP-1 comparing with MCF-7WT before treated with Estradiol.After E2 treatment,MCF-7MTA1-shRNA didn′t show significant change of MMP -9 except decrements of 32.3%(P<0.05)and 18.2%(P<0.05)in the mRNA and protein levels of TIMP -1.Conclusion MTA1 may be involved in the pathway by which estrogen regulated the expression of MMP -9 but not TIMP-1 in ER positive breast cancer cells .

Objective To investigate the early clinical effects of percutaneous kyphoplasty in the treatment of age-related osteo-porotic vertebral compression fractures .Methods Retrospected 54 cases with osteoporotic verebral compression fractures were treated with PKP ,summarized early clinical effects and complications .analysis of preoperative and postoperative wound vertebral height average recovery rate ,Cobb Angle ,VAS scores and ADL scores .Results Operations in all the 54 cases were completed smoothly ,47 cases for 6 to 24 months follow-up(mean 13 .5 months) .postoperative pain in 31patients obtained remission immedi-ately ,1 week after operation ,12 cases with lower back pain and need the non-steroidal anti-inflammatory medications ,the symptoms remissed significantly or disappeared after 8 weeks postoperatively .At the last follow-up ,4 patients still had low back pain and need oral analgesics .Preoperative and postoperative wound vertebral height average recovery rate ,Cobb Angle ,VAS scores and ADL scores was statistically significant .Conclusion PKP is a minimally invasive ,effective and safe procedure that provides pain relief and stabilization of spinal stability and activities under the bed early ,and improves quality of life at the same time .Grasping the indi-cations Strictly and holding the surgical skills can be obtained clinical results efficiently and safely .

Objective To investigate the potential effects of vegetables and fruits (F&V) consumption on the prevention of hypertension in Chinese population of North China.Methods A cohort of 10 635 cases were established in Kailuan community in Tangshan city and Jingmei community in Beijing city in July 2012.After a mean follow-up time of 47.2 month,the potential effects of different amounts of vegetables,fruits and F&V consumption on the new incidence of hypertension were studied and compared with univariant by multivariant Cox regression method.Results A total of 10 104 completed the follow-up survey and 576 cases of new hypertension were recorded.The incidence of hypertension in participants with ≤2,>2.0-<4.1-<5.0,≥5.0 serving F&V per day was 6.2%,6.0%,5.1% and 4.6%,respectively.With comparison to those participants consuming the lowest amount of vegetables,fruits and F&V,the hazard ratio for reducing the risk of hypertension and the 95% confidence intervals were 0.62 (0.46-0.83),0.87(0.78-0.97) and 0.69(0.54-0.80) for separate vegetables and fruits and total F&V(P<0.05).Conclusion Increasing the consumption of vegetables and fruits can significantly bring down the incidence of hypertension in North China populations.

OBJECTIVE:To provide reference for improving the work quality of Pharmacy intravenous admixture service(PIV-AS). METHODS:The quality control monitoring system for PIVAS established and implemented in our hospital was introduced, the monitoring system was tracked and checked from initial stage of implementation (Jan. 2016) to implemented for 12 months (Dec. 2016),and the effect was evaluated. RESULTS:PIVAS in our hospital had developed quality control monitoring system that included medication error and critical error monitoring system,auditing medical order homogenization monitoring system,hand hy-giene monitoring system,high-alarm drug management monitoring system and drug liquid residue monitoring system. In initial stage of implementation,the relevant checking indexes including incidence of medication error and critical error,standardization rate of auditing medical orders,awareness rate of hand hygiene knowledge,compliance rate of hand hygiene,correct rate of hand hygiene,pass rate of high-alarm drug management and pass rate of drug liquid residue were 0.14%,57%,85%,70%,86%, 98%,75%;and after implemented 12 months,the indexes were 0.01%,87%,97%,81%,95%,100%,93%,respectively (P<0.05). CONCLUSIONS:The quality control monitoring system in PIVAS established and implemented in our hospital has ef-fectively improved the work quality of PIVAS.

Objective To observe the effect of rotavirus (RV) infection on expression level and bioactivity of Na+-H+ exchanger 3 (NHE3) in Caco-2 cells. Methods Model of NHE3-expressing Caco-2 cells was constructed and studied in terms of intervention: control, RV, clathrin antagonist chlorpromazine (CPZ), and CPZ + RV. NHE3 activity and NHE3 protein amount on cell surface were determined by BCECF-AM and biotinylation, respectively. Expression level of clathrin was assayed by Western blot. Results Compared with control group, NHE3 activity and NHE3 surface protein level significantly decreased when the cells were treated with RV. These effects could not be completely cancelled by clathrin antagonist CPZ. Moreover, RV treatment could increase cellular protein level of clathrin, which was cancelled by CPZ. Conclusions The effect of RV infection on NHE3 expression level and biological activity may be related to clathrin-dependent endocytosis pathway, and may be also affected by other endocytosis pathways.

OBJECTIVE: To investigate the expression of Calponin-1 and Transgenlin in the uterine smooth muscles during normal labor on-sets, and to evaluate their effect on initiating the normal labor. METHODS: A total of 14 uterine bodies and lower segments of human pregnancy were divided to a non-labor group (NIL) and a labor group(IL). Immunohistochemical technology and Western blot were used to determine the expression of Calponin-1 and Transgelin in the 2 groups. RESULTS: Immunohistochemical detection and Western blot showed that Calponin-1 protein in the uterine smooth muscle tissue of the body and the lower uterine segment of smooth muscle tissues had significant difference (P<0.05). The expression of Transgelin in the uterine body smooth muscle tissue in the IL was higher than that in the NIL(P<0.05). In the lower uterine segments of the smooth muscle, the expression of Transgelin was not significantly different in the 2 groups (P>0.05). CONCLUSION Calponin-1 of the uterine smooth muscle and Transgelin of the uterine body smooth muscle may involve in the regulation of uterine smooth muscle contractility, which is closely related to child birth launch.
Adult ; Calcium-Binding Proteins ; genetics ; metabolism ; Female ; Humans ; Labor Onset ; metabolism ; Microfilament Proteins ; genetics ; metabolism ; Muscle Proteins ; genetics ; metabolism ; Myometrium ; metabolism ; Pregnancy ; Uterine Contraction ; metabolism

Objective To observe the effects and regulatory mechanism of rotavirus infection on the expression and bioactivity of Na+/H+exchanger 3 (NHE3) on Caco-2 cells. Methods A cell model of Caco-2 cells expressing NHE3 was constructed. Four groups were set up,which were control(CTL) group, rotavirus(RV) infection group, Cdc42 inhibitor (Pirl-1) group and Pirl-1+RV group. Bioactivity and ex-pression of NHE3 on the surface of Caco-2 cells were determined by BCECF-AM and biotinylation method, respectively. Expression of Cdc42 protein was measured by Western blot. Co-immunoprecipitation was per-formed to detect the interaction between NHE3 and Cdc42. Results Compared with the CTL group,RV in-fection significantly inhibited the bioactivity and expression of NHE3 on Caco-2 cells. These inhibitory effects were antagonized by Pirl-1. Moreover,RV infection enhanced the expression of Cdc42 protein and promoted the interaction between NHE3 and Cdc42, which were also antagonized by Pirl-1. Conclusion RV infec-tion might regulate the expression and bioactivity of NHE3 through Cdc42-dependent endocytosis pathway.

Objective To investigate the effects of rotavirus ( RV) on the expression and bioactiv-ity of Na+-H+ exchanger 3 ( NHE3 ) in Caco-2 cells and the possible regulatory mechanism. Methods Caco-2 cells expressing NHE3 were constructed and divided into four groups as follows: control ( CTL ) group, RV group, BAPTA-AM ( a Ca2+ chelator) group and BAPTA-AM+RV group. Na+-H+ exchanger ac-tivity and NHE3 expression on cell surface were determined using BCECF-AM and biotinylation assay, re-spectively. Expression of Cdc42 at protein level was measured by Western blot. Results Compared with the control group, RV infection significantly decreased the activity of NHE3 and its expression on cell surface. BATPA-AM antagonized the inhibitory effects on NHE3. Moreover, the expression of Cdc42 at protein level was increased following RV infection, which was also antagonized by BATPA-AM. Conclusions Intracellu-lar Ca2+-mediated Cdc42-dependent endocytosis pathway might be involved in regulating the expression and bioactivity of NHE3 during RV infection.