1.Inhibition of Proto-oncogene Pokemon Expression by siRNA Expression Vector in SW480 Cells
Rui GUO ; Xi-Xia LI ; Jun XIE ;
China Biotechnology 2006;0(06):-
To investigate the inhibitory effects of siRNA expression vector on proto-oncogene Pokemon expression in SW480 cells and to provide experimental basis for further research about the biological function of Pokemon.siRNA expression vectors were constructed to express a short hairpin RNA against Pokemon.The recombinants were transfected into SW480 cells with liposome.Cellular morphology and transfection efficiency were observed.The expression of Pokemon were checked by real-time fluorescence quantitative PCR and Western blot.MTT assay was used to detect the effect of siRNA on the growth of SW480 cells and Fluorescence Activated Cell Sorter was applied to study cell apoptosis of SW480 cells.The transfection efficiency was about 36% and the cellular morphology changed greatly at 48h after transfection.siRNA expression vectors could specifically reduce the expression of Pokemon mRNA and protein in SW480 cells.Compared with negative control,the inhibition ratio of Pokemon mRNA expression was 34.2% and 67.7%,in 24th hour and 48th hour,the inhibition ratio of Pokemon protein was 48.3% and 73.6%,in 48th and 72th hour,respectively.Transfection with Pokemon siRNA expression vectors could inhibit cell growth and induce cell apoptosis of SW480 cells.siRNA expression vectors were successfully established that could effectively inhibit the expression of Pokemon in SW480 cells.Pokemon gene silencing could decrease growth and increase apoptosis of SW480 cells.
2.Efficacy of adjunctive intravitreous injection with Lucentis for neovascular glaucoma
International Eye Science 2014;(6):1077-1079
AIM: To observe the clinical efficacy of adjunctive intravitreous injection with Lucentis for the treatment of neovascular glaucoma ( NVG) .
METHODS:The retrospective case series study included 25 eyes of 25 patients who underwentintravitreous injection with Lucentis. Patients firstly received an intravitreous injection with Lucentis (0. 5mg/0. 05mL), after the regression of neovascularization of the iris, patients accepted different surgical treatments according to different etiopathogenesis condition. Iris, chamber angle neovascularization condition, intraocular pressure, and visual acuity were observed postoperatively. The follow-up duration was 3mo.
RESULTS:After 3-7d of intravitreous Lucentis injecting, iris and chamber angle neovascularization was totally faded in 20 cases (20 eyes) and was not completely faded in 5 cases ( 5 eyes ) . Additional treatments were compound trabeculectomy ( 14 cases, 14 eyes ) , vitrectomy ( 4 cases, 4 eyes ) . The patients' mean intraocular pressure was 43. 42 ± 10. 99mmHg before treatment, which decreased rapidly when they came out of the hospital (14. 26±7. 64mmHg, P<0. 05) and stabilized during the follow-up 3mo (18. 76±5. 96mmHg, P<0. 05). Follow-up at 3mo, visual acuity improved or remained in 20 cases ( 20 eyes ) and decreased in 5 cases ( 5 eyes ) . The complete success, qualified success and failure were 21 eyes, 3 eyes and 1 eye, respectively.
CONCLUSION:Intravitreous injection with Lucentis can be used as an assisted treatment of NVG. According to different etiopathogenesis condition, it is an effective treatment to combine with other treatment methods for NVG.
3.Improved RP-HPLC method for determination of ferulic acid concentration in human serum
Jingqun HUANG ; Xi HUANG ; Li ZHANG ; Rui XU ; Ping REN
Chinese Traditional and Herbal Drugs 1994;0(09):-
Object To develop an improved RP-HPLC method for determining ferulic acid in the human serum. Methods The determination was carried on RP-HPLC, using Kromasil-C 18column, methanol-water-acetic acid (36.4∶63∶0.6) as mobile phase with a flow rate of 1.0 mL/min and at the detection wavelength of 322 nm, and p-hydroxybenzaldehyde was used as internal standard. The serum sample was deproteinized with acetonitrile to extract ferulic acid. Results The calibration curve showed good linearity over the range of 9.94-159.04 ng/mL (r=0.992 5). RSD was less than 10% within day and day-to-day, the average recovery was 99.77% and the minimal concentration in serum was 5 ng/mL. Conclusion This method, which is simple, rapid, sensitive, reproducible and low toxic, is appropriate for the quantitative determination of ferulic acid in the human serum.
4.Effect of related factors on the stability of posterior corneal surface after LASIK
Qiao-Ya, LIN ; Xue-Xi, LI ; Rui-Zhen, YE
International Eye Science 2014;(10):1857-1859
AIM:To discuss the related factors that affected the stability of posterior corneal surface after laser in situ keratomileusis ( LASIK) .
METHODS:About 64 patients (64 eyes) were enrolled. The correlation among the changes in posterior corneal surface 6 month after LASIK, surgery method, corneal flap thickness ( FT ) , ablation thickness ( AT ) , postoperative residual corneal stroma thickness ( RCST ) , preoperative thinnest corneal thickness ( CT ) , flap thickness/preoperative thinnest corneal thickness ( FT/CT ) , ablation thickness/preoperative thinnest corneal thickness ( AT/CT) , postoperative residual corneal stroma thickness/preoperative thinnest corneal thickness ( RCST/CT) , anterior and posterior preoperative corneal height, the difference of the forward shift in posterior corneal surface ( diff value ) of preoperative and preoperative intraocular pressure were analyzed.
RESULTS: The changes of diff value between preoperative and postoperative were related with diopter (r=0.419, P=0.014), AT (r=0.394, P=0.023), AT/CT (r=0.501, P=0.004), Diff value of preoperative (r=0.501, P=0. 004), RCST (r=-0. 385, P=0. 033) and RCST/CT (r=-0. 401, P=0. 025). The changes of height value from posterior corneal surface between preoperative and postoperative were related with diopter (r=0. 520, P=0. 002), AT (r=0.504, P=0. 003), AT/CT (r=0. 442, P=0. 013), Diff value of preoperative (r=0. 624, P=0. 000) and RCST/CT (r=-0. 394, P=0. 028).
CONCLUSION: AT, RCST, AT/CT, RCST/CT and diff value of preoperative should be the key index that predicted the stability of posterior corneal surface after LASIK,the further research will give the range of safety value.
5.The mRNA expression of Ntcp and Bsep in hepatic injury induced by lipopolysaccharide in mice
Jiang LI ; Yun CUI ; Yucai ZHANG ; Yuqian REN ; Rui LI ; Xi XIONG ; Cunxia WANG
Chinese Journal of Emergency Medicine 2017;26(7):767-772
Objective To investigate the effects of lipopolysaccharide (LPS) on the expressions of sodium taurocholate co-transporting polypeptide (Ntcp) and bile salt export pump (Bsep),as well as the liver function markers in the serum including total bilirubin (TBIL),total bile acids (TBA),alanine aminotransferase (ALT),aspartate aminotransferase (AST) in mice.Methods One hundred and twenty-eight C57BL/6 mice were intra-peritoneally injected with different doses of 5,10,20 or 40 mg/kg LPS (n =24),respectively.No treatment or treated with 0.9% NaC1 in mice as controls.Serum TBIL,TBA,ALT and AST levels were measured at 24 h,48 h and 72 h after LPS injection in each group.The mRNA expressions of Ntcp and Bsep were detected by reverse transcription quantitative polymerase chain reaction (RT-qPCR).The liver histological sections were stained with haematoxylin and eosin (H&E).Results The Ntcp and Bsep mRNA expressions in mice liver were significantly lower in livers of LPS-treated mice within 24-72 h compared with control group,and the lowest level was reached at 24 h in a dose-dependent manner.And the relative expressions of Ntcp mRNA and Bsep mRNA were (0.64 ± 0.02),(0.53 ± 0.14),(0.25±0.09),(0.15±0.07)and (0.74±0.12),(0.58±0.11),(0.41±0.09),(0.27 ± ± 0.11) in livers of mice injected with LPS in the different doses of 5,10,20,40 mg/kg,respectively.In addition,serum levels of TBIL,TBA,ALT,and AST were significantly increased in mice of LPS-treated group compared with control group,particularly within 24 h after LPS treatment.Serum levels of TBIL,TBA,ALT,and AST were significantly decreased in mice of 40 mg/kg LPS-treated 72 h group compared with 24 h group presenting them with (1.29 ± 0.25) μ mol/L vs.(1.71 ± 0.22) μ moL/L,(6.97 ± 0.98) μmol/Lvs.(8.96±1.01) μmol/L,(120.17±21.08) U/L vs.(179.22±16.57) U/L,(360.34 ±35.31) U/L vs.(510.97 ± 34.70) U/L,respectively.Furthermore,histological changes in liver depend on dose and the course of LPS treatment.Cytoplasm rarefaction and inflammatory cells infiltration were detected at 24 h after treatment with 5 or 10 mg/kg LPS.Acidophilic and vacuolar degeneration,neutrophils infiltration in the hepatic sinusoid and portal area,the proliferation of bile ductulus were observed at 48 h,72 h after treatment with 5 or 10 mg/kg LPS.In the 20 or 40 mg/kg LPS treatment groups,focal necrosis,infiltration with inflammatory cells,proliferation of bile ductulus and expansion of duct were observed at 24 h,48 h and 72 h after LPS treatment.Conclusions LPS decreases the mRNA expressions of Ntcp and Bsep in a dose dependent manner in mice,contributing to mechanism of liver injury induced by endotoxin.
6.Preliminary exploration on"bidding group"in medical supplies procurement system
Jin-Xi DING ; Rui DONG ; Wei LI ; Rui XIE
Chinese Journal of Health Policy 2017;10(12):27-32
Objective: To summarize the typical experiences and practices based on the quality evaluation of medical consumables in foreign countries and the practice of drug bidding in China,and to explore the establishment of a bidding grouping scheme for medical consumables in China. Methods: Using literature analysis and evaluation method of combing foreign countries typical measures of medical consumables quality assessment,this paper summa-rized the construction of index system of bidding in China Pharmaceutical Group, and used simple statistical data to reflect the present policy of China's medical supplies such as lack of relevant policies,different levels of quality etc.. Results:There are many problems in the quality evaluation of medical consumables in China. However, the typical measures of extraterritorial quality evaluation and the practice of pharmaceutical bidding in China provide a solid theo-retical and practical basis for the establishment of medical consumable supplies bidding grouping. Conclusion:Estab-lishing bidding grouping scheme is necessary in the Chinese Medical supplies context. Based on a clear difference be-tween medical supplies and medicines,and according to the"three stage"our conceptualization gradually improved. On the basis of the existing data and practical situation,the establishment of scientific selection index bidding group division standard,has been in the exploration of the formation of China's medical supplies bidding grouping scheme.
7.Academic origin of round magnetic needle and standardization operation.
Yan-Ting CHENG ; Tian-Sheng ZHANG ; Li-Qiang MENG ; Rui-Qi SHI ; Lai-Xi JI
Chinese Acupuncture & Moxibustion 2014;34(7):705-708
The origin and development of round magnetic needle was explored, and the structure of round magnetic needle was introduced in detail, including the handle, the body and the tip of the needle. The clinical opera tion of round magnetic needle were standardized from the aspects of the methods of holding needle, manipulation skill, tapping position, strength of manipulation, application scope and matters needing attention, which laid foundation for the popularization and application of round magnetic needle.
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8.Research on stakeholders of public hospital in China
Rui HUANG ; Yingchun CHEN ; Zhanchun FENG ; Yanjun ZHONG ; Xi CHEN ; Li CHEN ; Shasha HE
Chinese Journal of Hospital Administration 2011;27(8):581-584
Objective To confirm the connotation, constitution and classification of the stakeholders in public hospital. Methods The stakeholders of public hospital were proposed through the brainstorm method and literature search. On this basis, the expert consultation scale was developed by using the score-based approach for reference The stakeholders of public hospital were confirmed and classified through two-round expert consultation. Results The research confirms 16 stakeholders of public hospital on the 80% level of support ratio by experts. There were 10 core stakeholders, 5 latent stakeholders and 1 marginal stakeholder. Conclusion Appropriate stakeholder management strategy should be taken for different types of stakeholders.
9.Efficacy observation of chiropractic plus foot bath with Chinese medicine for transient synovitis of the hip in children
Zhi-Xing LI ; Bao-Hua PAN ; Rui-Xi ZHANG ; Yu-Yu XU ; Xiao-Zhuan CHEN
Journal of Acupuncture and Tuina Science 2021;19(1):37-42
Objective: To compare the efficacy of different treatment protocols in treating transient synovitis of the hip (TSH) in children and to optimize the clinical treatment strategy for this condition. Methods: Ninety kids with TSH were divided into a control group, a chiropractic group and a chiropractic plus foot bath group using the random number table method, with 30 cases in each group. The control group was treated with conventional traction; the chiropractic group was given chiropractic treatment based on the control group; the chiropractic plus foot bath group was given Chinese medicine foot bath based on the chiropractic group. Traction and foot bath were conducted once daily while chiropractic was done once every other day, all with 14 d as a treatment course for a total of two courses. Changes in the visual analog scale (VAS) score and range of motion (ROM) of the hip joint in the three groups were observed, and the efficacy was compared. Results: The total effective rate was 93.3% in the chiropractic plus foot bath group, versus 76.7% in the chiropractic group and 66.7% in the control group, and the total effective rate was notably higher in the chiropractic plus foot bath group than in the other two groups (both P<0.05). Respectively after the first and second treatment course, the VAS score decreased significantly in each of the three groups compared with that before treatment (all P<0.01), and the ROM of the hip joint in flexion increased significantly (all P<0.01). After two treatment courses, the VAS score was lower in the chiropractic plus foot bath group than in the other two groups (both P<0.05), and its ROM of the hip joint in flexion was larger than that in the other two groups (both P<0.05). Conclusion: Based on traction, chiropractic plus Chinese medicine foot bath can effectively reduce pain and improve motor function of the hip joint in treating TSH.
10.Expression of Toll-like receptor 4 and nuclear factor-κB in patients with critically severe HFMD and the effects of esmolol intervention
Lei ZHU ; Gongjian QI ; Xiaoying XI ; Hong ZHANG ; Rui ZHANG ; Weihua LI
Chinese Journal of Microbiology and Immunology 2015;(11):827-831
Objective To investigate the expression of Toll-like receptor 4 ( TLR4 ) and nuclear factor-κB ( NF-κB) in patients with critically severe hand, foot and mouth disease ( HFMD) and to evaluate the effects of esmolol intervention on those patients.Methods Fifty-two hospitalized children with critically severe HFMD in the Intensive Care Unit of Xuzhou Children′s Hospital were enrolled in the study from May 2014 to May 2015 and randomly divided into two groups, represented as group A and group B.Children in the group A were given routine treatment, while those in the group B were treated with esmolol in addition to the routine therapy.Thirty children with common HFMD were selected as disease control, and thirty healthy children were set up as normal control.Differences in the expression of TLR4, NF-κB, TNF-αand IL-6 among all children were comparatively analyzed.The levels of TLR4, NF-κB, TNF-αand IL-6 in children from groups A and B were detected after 24 hours, 72 hours and five days of treatment and the differences betweenthetwogroupswereanalyzed.Results (1)Comparedwiththechildrenfromdiseasecontroland normal control groups, those with critically severe HFMD showed significantly increased expression of TLR4, NF-κB, TNF-αand IL-6 (P<0.01).(2)No significant differences in the expression of TLR4, NF-κB, TNF-αand IL-6 were found between the two subgroups of children with critically severe HFMD before treat-ment (all P>0.05).The expression of TLR4, NF-κB, TNF-αand IL-6 in children from both subgroups were significantly decreased after receiving corresponding treatments for 24 hours, 72 hours and five days (all P<0.05).Compared with the children form group A, those from group B showed significantly decreased expression of NF-κB, TNF-αand IL-6 after 24 and 72 hours of corresponding treatments (all P<0.05).No significant difference in the expression of TLR4 was observed between the two subgroups after 24 and 72 hours of corresponding treatments (P>0.05).No significant differences in those observed indicators were found between the two subgroups after five days of treatments (all P>0.05).Conclusion The TLR4/NF-κB/proinflammatory factor pathway might play an important role in the development of critically severe HFMD.Treatment with esmolol could inhibit the expression of NF-κB, reduce the secretion of inflammatory factors and alleviate the inflammatory reaction during critically severe HFMD.