2.Observations on the Efficacy of Combined Use of Acupuncture and Medicine in Treating Functional Gastric Acid Regurgitation
Shanghai Journal of Acupuncture and Moxibustion 2015;(1):28-29
Objective To investigate the clinical efficacy of combined use of acupuncture and medicine in treating functional gastric acid regurgitation. Methods Ninety-eight patients with functional gastric acid regurgitation were randomly allocated to treatment and control groups, 49 cases each. The control group received routine medication and the treatment group, acupuncture plus Chinese herbal medication in addition. The symptom severity and frequency were scored in the two groups before and after treatment. The clinical therapeutic effects were compared between the two groups. Results There were statistically significant post-treatment differences in the symptom severity score and the symptom frequency score between the treatment and control groups (P<0.05). The total efficacy rate was 95.9% in the treatment group and 83.7% in the control group; there was a statistically significant difference between the two groups (P<0.05). Conclusion Combined use of acupuncture and medicine is an effective way to treat functional gastric acid regurgitation.
3.Effects of ketamine on synaptosomal Na~+ -K~+ -ATPase and Ca~(2+) -ATPase activity of cerebral cortex and thalamus in rats
Zhilong ZHANG ; Yandong LI ; Laizhu ZHANG
Chinese Journal of Anesthesiology 1994;0(03):-
Objective To investigate the effects of ketamine on Na+ -K+ -ATPase and Ca2+ -ATPase activity Of cerebro cortex and thalamus in rats. Methods Thirty-two SD rats of both sexes weighing 200-300 g were randomly divided into 4 Groups: 1 control group; 2 anesthesia group; 3 recovery group 1 and 4 recovery group II . In control group normal saline 10 ml?kg-1 was administered intraperitoneally (ip) while in the 3 ketamine groups ketamine 100mg?kg-1 was administered ip. The animals were killed by decapitation when righting reflex was lost (group 2) or recovered (group 3) or when the animals were fully awake (group 4). Brain was immediately removed on ice. Bilateral cortex and thalamus were isolated homogenized and centrifuged. Na+ -K+ -ATPase and Ca2+-ATPase activity were assessed by spectrophotometric analysis. Results The Na+-K+-ATPase and Ca2+ -ATPase activity of cerebrocortex decreased by 32.8% and 26.2% and of thalamus decreased by 31.4% and 24.5% respectively in group 2 as compared with those in group 1. The Na+-K+-ATPase and Ca 2+-ATPase activity of the cerebrocortex and thalamus were recovered in group 3 and 4. Conclusions The Na+ -K+ -ATPase and Ca2+ -ATPase may play an important role in the mechanism of ketamine anesthesia.
5.Peroxisome proliferator-activated receptor ? agonist attenuates ICAM-1 and CINC-1 expression in lungs of rats with acute lung injury
Dong LIU ; Bangxiong ZENG ; Shihai ZHANG ; Zhilong GENG ; Shifan ZHANG
Chinese Journal of Pathophysiology 2000;0(08):-
AIM: To investigate the effects of rosiglitazone(ROSI),an agonist of peroxisome proliferator-activated receptor ?(PPAR?),on the lung expression of intercellular adhesion molecule-1(ICAM-1) and cytokine-induced neutrophil chemoattractant(CINC) in rats with acute lung injury. METHODS: Thirty-six male Wistar rats were randomly divided into six groups: control group,ROSI group,GW9662(a PPAR? antagonist) group,lipopolysaccharide(LPS,6 mg/kg,iv) group,ROSI-LPS group(0.3 mg/kg ROSI iv 30 min prior to LPS) and GW9662-ROSI-LPS group(0.3 mg/kg GW9662,iv,20 min before ROSI).Four hours after LPS injection,wet/dry weight(W/D) ratio,myeloperoxidase (MPO) activity,malondialdehyde(MDA) and CINC-1 concentrations were assayed in the lung tissues.Immunohistochemical analysis of ICAM-1 expression was also studied.RESULTS: Pretreatment with ROSI significantly attenuated LPS-induced increases in W/D ratio,MPO activity,MDA and CINC-1 concentrations as well as ICAM-1 expression in the lung tissues.The specific PPAR? antagonist GW9662 antagonized the effects of ROSI.CONCLUSION: Pretreatment with ROSI reduces LPS-induced lung injury in rats.The mechanism involves inhibition of the lung expression of ICAM-1 and CINC-1 by the activation of PPAR?.
7.Role of C-terminal Src kinase in angiotensin Ⅱ-induced cytoskeletal rearrangement in glomerular podocytes
Lu ZHANG ; Zhilong REN ; Qian YANG ; Yiqiong MA ; Guohua DING
Chinese Journal of Nephrology 2015;31(11):842-847
Objective To investigate the effects of angiotensin Ⅱ (Ang Ⅱ) on the expression of C-terminal Src kinase (Csk) in Ang Ⅱ-infused rat model and cultured podocytes,and to explore the role of Csk in Ang Ⅱ-induced cytoskeletal rearrangement of podocytes.Methods Twenty-four Wista rats were randomly subjected to normal saline infusion,or Ang Ⅱ infusion at 400 ng · kg1 · min-1 (via subcutaneous osmotic minipumps) for 2 or 4 weeks.Renal histomorphology was evaluated through electron microscopy.The expression of glomerular Csk was analyzed by immunofluorescence and Western blotting.In vitro,conditionally immortalized mouse podocytes were cultured and treated with Ang Ⅱ doses ranging from 10-9 mol/L to 10-5 mol/L and for different hours.The expression of podocytes Csk was assessed by Western blotting.After transfection to podocytes with Csk siRNA,FITC-conjugated phalloidin was used to stain F-actin,to investigate the role of Csk in Ang Ⅱ-induced or cytochalasin D-induced cytoskeletal rearrangement.Results (1) Examination of Ang Ⅱ infusion rats glomerular and podocyte ultrastructure by electron microscopy revealed foot process effacement and fusion; (2) In Ang Ⅱ infusion rats,the expression of glomerular Csk was increased (P < 0.05); (3) In vitro,Ang Ⅱ-stimuli up-regulated the expression of Csk (P < 0.05),and the effects of Ang Ⅱ were on dose-dependent and time-dependent manner; (4) Ang Ⅱ-induced disruption of F-actin was alleviated by Csk siRNA transfection in cultured podocytes; furthermore,cytochalasin D depolymerized the F-actin cytoskeleton,while Csk siRNA stabilized the actin filaments.Conclusion The enhanced expression of Csk may be involved in Ang II-induced podocytes cytoskeletal rearrangement and foot process fusion.
9.Effect of different anticancer drugs on the hyperplasia and telomerase activity of breast cancer cell MCF-7
Rongqing PANG ; Buzhen ZHANG ; Jian CHEN ; Xinhua PAN ; Zhilong CHEN ;
Chinese Journal of General Surgery 1997;0(06):-
Objective To study the alteration of telomerase activity of MCF 7 cell line of breast cancer in the presence of different anticancer drugs. Methods The hyperplasia and viability of MCF 7 cell were detected by cell counting and trypan blue exclusion, and the telomerase activity was measured by TRAP.The alteration of MCF 7 cell and its related factors of telomerase activity were observed on cell growing in different condition. Results In abscence of drug, there was a positive correlation between hyperplasia and telomerase activity of the cell(r= 0.901 ). Adriamycin, paclitaxel and cisplatin could obviously inhibit the growth and reduce the telomerase activity of the cell in a dose-dependent and time-dependent fashion, and this reduction in telomerase activity closely correlated with the reduction in the number of viable cells. Conclusions Adriamycin, paclitaxel and cisplatin can inhibit the growth of MCF 7 cell, which may be correlated with the reduction in telomerase activity and cell viability.
10.Effects of inducers of differentiation on telomerase activity in malignant cells
Liming ZHANG ; Qian HE ; Guang YANG ; Zhilong CHEN
Chinese Pharmacological Bulletin 2001;17(2):140-142
More than 85% of all cancers express telomeras e activity. Human telome rase has been proposed as a novel and potentially highly selective target for ca ncer therapy. Inducers of differentiation are involved in regulation of telomera se activity. In the present review, the effects of retinoids, vitamin D3 compo unds, tea catechins and matrine on telomerase activity in malignant cells were r eviewed.