1.The enhancement effect of Total Soyasaponin on the immune function of mice
Chinese Journal of Immunology 1985;0(03):-
In the present study it was observed that the reactivity of splenocytes to Con A,LPS and IL-2 was enhanced in the mice which were given Total Soyasaponin(Ts)Via mouth?We also found that the level of IL—2 in splenocytes and the activity of NK and LAK cells were obviously higher than that in the control group.
2.Research in reliability and validity of the Chinese version of job satisfaction scale
Chinese Journal of Practical Nursing 2009;25(11):16-18
Objective To evaluate the reliability and validity of the Chinese version of job satisfaction scale in order to supply quantitative tool for evaluation of nurses" job satisfaction degree. Methods 336 nurs-es from 14 general hospitals were tested with Chinese version of job satisfaction scale and analysis was carried out for reliability and validity according to the test result. Results The total Cronbach's α coefficient of Chi-nese version of job satisfaction scale was 0.901, Cronbach's α coefficient range of every dimension was 0.732~ 0.921, re-test reliability was 0.832, 9 factors were extracted through factors analysis and they explained 59.57%of the overall variance. Conclusions Chinese version of job satisfaction scale has good reliability and validi-ty, it can be used in evaluation of nurses' satisfaction degree preliminarily.
3.Inhibition of glutamine on inflammation of rats with pneumonia induced by Klebsiella pneumonia
Chongqing Medicine 2016;45(33):4622-4624,4628
Objective To explore the inhibition effect of glutamine on the inflammation of rats with pneumonia induced by Klebsiella pneumoniae.Methods Thirty-six SD rats were randomly divided into the normal group,model group and glutamine treatment group.The rat pneumonia model was established by intratracheal instillation of Klebsiella Bacillus pneumonia.Results Compared with the model group,the glutamine treatmernt group could reduce the ratio of W/D(5.98±0.29)vs.(4.32±0.33)(P< 0.05),alleviated the lung tissue edema,inflammatory cell infiltration and then improved the morphology of the lung tissue,inhibited the IL-6,IL-1 and TNF-α secretion in serum and lung homogenate(P<0.05),and inhibited the level of NF-κB p65 and IκBα phosphorylation.Conclusion Glutamine inhibits the inflammation of rats with pneumonia induced by Klebsiella pneumoniae,which might be related to NF-κB signal pathway.
4.The effect of Succinate injection combined with Bifico on the myocardial enzymes changes of the children with rotavirus enteritis
International Journal of Traditional Chinese Medicine 2017;39(2):118-120
Objective To observe the effect of Succinate injection combined with Bifico on the myocardial enzymes changes of the children with rotavirus enteritis.Methods A total of 146 children with rotavirus enteritis were enrolled and included in this study. Children were randomly divided into the control group (n=73) and the observation group (n=73). The control group was received Bifico on the basis of routine treatment, and observation group was received Succinate injection combined with Bifico. The IL-17, IL-6, TNF-?, LDH, CK, and CKMB was detected by ELISA. The rates of clinical effects was compared.Results After treatment, the IL-17 (22.35 ± 4.21 ng/mlvs. 30.24 ± 6.07 ng/ml,t=2.395), IL-6(31.26 ± 6.14 ng/mlvs. 43.72 ± 8.22 ng/ml,t=2.347), TNF-? (35.62 ± 6.24 ng/mlvs. 49.18 ± 8.72 ng/ml,t=2.421), LDH (135.16 ± 31.25 U/Lvs. 174.08 ± 40.22 U/L,t=2.373), CK (37.82 ± 7.39 U/Lvs. 50.21 ± 11.16 U/L,t=2.385), and CKMB (90.14 ± 11.63 U/Lvs. 113.22 ± 18.35 U/L,t=2.392) in the observation group were lower than those in the control group (P<0.05). The rates of clinical effects was 94.5% (69/73) in the observation group and 83.6% (61/73) in the control group. There was significant difference between the two groups (χ2=2.352,P=0.047).Conclusions The Succinate injection combined with Bifico could reduce the inflammatory indices and alleviate the myocardial injury in the RVE patients.
5.Changes and meaning of function and structure of diabetic rats' peripheral nerve
Liping HAN ; Demin YU ; Yun XIE
Journal of Chinese Physician 2008;10(9):1203-1205
Objective The aim of this study is to undemtand the development of peripheral nerve injury on diabetes mellitus.Methods Diabetes was induced by STZ.We determined nerve conduction velocity,thermal pain threshold,morphoh)gy changes of sciatic nerve and quantitative analysis of sural nerve of diabetic model group and normal control group after 2 weeks,4 weeks,6 weeks,8 weeks,12 weeks respectively,and observed dynamically functional and morphologic changes of peripheral nerve of diabetic rats.Results After 2 weeks,diabetic rats showed that motor and sensory nerve conduction velocities slowed down and thermal pain threshold decreased.After 4 weeks.changes of pathology of sciatic nerve were observed.With the duration extending,the damages of nerve were aggravated gradually.Conclusions Neumpathy appeared in earlier stage on experimental diabetic rats and functional changes were preceded to morphologic changes.
6.Effects of angiotensin-converting enzyme inhibitor on microcirculation of peripheral nerve in diabetic rats
Liping HAN ; Demin YU ; Yun XIE
Journal of Chinese Physician 2008;10(3):320-323
Objective To investigate prevention and therapy effects of ACEI on peripheral nerve in the earlier stage of diabetic rats and the influence on microcirculation of experimental DPN.Methods Diabetes was induced by STZ.After 8 weeks of prevention or therapy treatment.the effects of lisinopril on function and structure of diabetic peripheral nerve were observed,the NO,NOS level in plasma and capillary density of sciatic nerve were determined.Results Lisinopril prevention and therapy treatment improved nerve conduction velocity,ameliorated morphology abnormalities in nerve fiber and capillary at different degrees.The NO level and capillary density of endoneurium were increased. Conclusions ACE inhibitors may exert neuroprotective effect through improving abnormality of microcirculation.
7.24 h esophageal pH monitoring in patients with gastroesophageal reflux-induced cough treated with omeprazole
Liping ZOU ; Jieping YU ; Hesheng LUO
Chinese Journal of General Practitioners 2009;08(6):389-391
To monitor the 24 h esophageal pH in patients with gastroesophageal reflux-induced cough (GERC) before and after omeprazole treatment. Methods The prospective study was conducted in Department of Gastroenterology, People's Hospital of Wuhan University from February 2007 to April 2008. Twenty patients with GERC received 40 mg of omeprazole daily and underwent 24 h esophageal pH monitoring before and 8 weeks after omeprazole treatment. Six parameters by Johson and Demeester were adopted for evaluation: pereentage of total time with pH <4, percentage of uptight reflux time with pH <4, percentage of supine reflux time with pH < 4, the number of reflux episodes with pH < 4, the number of reflux episodes longer than 5 min and the percentage of longest reflux duration. Results The values of six parameters before treatment were 13.5±8.5, 12.2±4.0, 15.8 ±4.1, 56 ± 13, 4. 15 ± 1.87 and 26.2 ± 16. 5 respectively; while those after treatment were 2.7± 1.3, 3.9 ± 1.9, 1.9 ± 1.0, 18 ± 11, 1.24 ±0.65 and 7.4 ± 2. 1. There were significant differences in these six parameters between pre-treatment and post-treatment (P<0.01 ). Conclusion The 24 h esophageal pH monitoring shows that omeprazole is effective in treatment of GERC by decreasing esophageal pH.
8.Effect of erythropoietin on expression of myocardial NADPH oxidase in pressure overload rats
Liping WANG ; Yu FAN ; Man HAN
Chinese Journal of Pathophysiology 2014;(10):1760-1764
AIM:To explore the effect of erythropoietin ( EPO) on the expression of myocardial NADPH oxi-dase (Nox) in the pressure overload rats.METHODS:Male SD rats (n=36) were used to establish a pressure overload myocardial hypertrophy model by abdominal aorta ligation.The animals were divided into model group, control group ( sham, without narrowing abdominal aorta, the rest of the operation was the same as the model) and recombinant human erythropoietin ( rhEPO) treatment group ( intraperitoneal injection of rhEPO postoperatively, 4 000 U/kg, twice a week) . After 8 weeks, the cardiac ultrasound imaging and hemodynamic evaluation were conducted to determine the cardiac func-tions.Masson staining was used to observe the degree of myocardial fibrosis.The expression of Nox2 and Nox4 at mRNA and protein levels was detected by real-time quantitative PCR and Western blotting.The protein levels of myocardial inflam-matory factors CD45, F4/80 and TGF-βwere determined by Western blotting.RESULTS:Compared with model group, the left ventricular ejection fraction (LVEF), left ventricular fractional shortening (LVFS), left ventricular end-systolic pressure (LVESP) and left ventricular pressure maximum rising and falling rates ( ±dp/dtmax) increased significantly in EPO treatment group (P<0.01).At the same time, left ventricular end-systolic diameter (LVESD), left ventricular end-diastolic diameter ( LVEDD) and left ventricular end-diastolic pressure ( LVEDP) were decreased in EPO treatment group (P<0.01).EPO reduced the degree of myocardial fibrosis caused by pressure overload (P<0.01) and decreased the ex-pression of Nox2 and Nox4 at mRNA and protein levels in the myocardium (P<0.05 or P<0.01), and reduced the pro-tein expression of myocardial inflammatory factors CD45, F4/80 and TGF-β.CONCLUSION: EPO inhibits rat myocar-dial fibrosis induced by pressure overload, improves heart functions by decreasing NADPH oxidase activity and inhibiting myocardial oxidative stress levels and myocardial inflammatory reaction.
9.Effects of sarcopenia and exercise training on muscle satellite cells:current status and prospects
Qun YU ; Xiquan WENG ; Liping WANG
Chinese Journal of Tissue Engineering Research 2016;20(15):2248-2254
BACKGROUND:The phenomenon of atrophy or reduction of muscle, causing degenerative changes of muscle functions, appears along with age. Sports training, in which muscle satelite cels are of great importance, is beneficial to increase in muscle mass and improvement of muscle function.
OBJECTIVE: To summarize regulatory mechanism of satelite cels in skeletal muscle mass; changes of satelite muscle cels in the degenerative process of muscle mass and strength; declining and reverse effects of sports training intervention; situations and problems of current research and prospective of the future.
METHODS:A computer-based online search was conducted in PubMed database by using the key words of “sarcopenia, skeletal muscle, satelite cels” from 1986 to 2015. The language was limited to English. The eligible papers were further analyzed and reviewed.
RESULTS AND CONCLUSION:A total of 168 papers were screened. Finaly, 39 papers were selected according to the titles and objectives. Skeletal muscle atrophy is shown as II type muscle fiber atrophy, and the II type muscle fiber satelite cel content decreases simultaneously. Exercise is beneficial to increase muscle mass and improve muscle function in older people. Both resistance and endurance trainings can increase the skeletal muscle, especialy the II muscle fiber satelite cel content with a further increase in the satelite cel activation and proliferation. The number and activation degree of satelite cels are related to muscle aging, and satelite cels and proliferation factors regulate muscle cel formation. Therefore, future researches should not only focus on the increase of satelite cel bank, but also explore effective ways to promote the activation of satelite cels, such as exercise training, nutrition and drugs.
10.Effect of liver I kappa B kinase during hepatic ischemia reperfusion in rats
Lei WANG ; Liping YU ; Liqun MA
Journal of Chinese Physician 2013;(z1):26-28
Objective To explore the effect of I kappa B kinase (IKK) on liver during hepatic ischemia reperfusion (HIR) in rats.Methods Wister rats were divided randomly into HIR group in which hepatic reperfusion was given after 60 minutes of ischemia by interruption of the arterial and portal venous blood supply to the left lobes and middle lobes of the liver; HIR + PDTC treatment group in which PDTC (120 mg/kg) were injected via the dorsum vein of penis before ischemia reperfusion; and sham control group in which midline laparotomy was performed without vascular occlusion and treatment.Expression levels of IKK were measured with In situ hybridization(ISH).The NF-κB activities were determined with EMSA.Expression levels of TNF-α were measured with immunohistochemistry (IH).Serum levels of ALT were measured.Results Expression level of IKK was increased markedly from 0 to 12h and peaked 6h after reperfusion in HIR group.NF-κB was activated 0 ~ 12h after reperfusion and activities of NF-κB were maximal 6h after reperfusion in HIR group rats compared with sham control group.Expression level of TNFα was increased markedly from 0 to 12h and peaked 6h after reperfusion in HIR group.Serum levels of ALT were increased significantly after reperfusion in H1R group.Expression level of IKK was lowered markedly in HIR + PDTC group from 0 to 12h after reperfusion.NF-κB activities were significantly lower in HIR +PDTC group than in HIR group from 0 to 12h after reperfusion.Expression level of TNF-α was lowered markedly in HIR + PDTC group as compared with HIR group from 0 to 12h after reperfusion.Serum level of ALT was decreased significantly after reperfusion in HIR + PDTC group as compared with HIR group.Conclusion HIR can activate IKK-β which promotes the activation of NF-κB,then NF-κB results in upregulation transcription of TNF-α gene which gives rise to the release of other inflammatory cytokines and triggers uncontrolled inflammatory response,and induces hepatic injury.Blocking IKK-NF-κB pathway may be an effective approach to checking the generation and development of ALI,PDTC plays important prophylaxis and treatment roles in hepatic injury after HIR.