1.Toll-like receptor in children's rotavirus infection
International Journal of Pediatrics 2012;39(5):441-444
Toll-like receptor is a receptor to identify the pathogen associated molecular,which relates the natural immune with required immune.Toll-like receptor activates natural immune and induces several cytokines.As a result,it will influence the differentiation of initiated T-cell by identifying Pathogens.The main Tolllike including TLR2、3、4、7、8、9 are closely related with anti-rotavirus to identify the natural immune affection of rotavirus.This review to explain the pathogenesis of Toll-like in rotavirus infection,as well as the key role which Toll-like plays in preventing rotavirus infection and controlling the inflammation.
2.Bone marrow mesenchymal stem cell transplantation combined with edaravone inhibits neuronal apoptosis after cerebral infarction
Chinese Journal of Tissue Engineering Research 2014;(10):1615-1620
BACKGROUND:Several studies have confirmed that bone marrow mesenchymal stem celltransplantation exerts a certain neuroprotective role in cerebral infarction. Edaravone is a novel potent smal-molecule hydroxyl radical scavenger, which play a protective role in the brain by eliminating free radicals and inhibiting nerve celldamage after cerebral infarction. OBJECTIVE:To explore the influence of bone marrow mesenchymal stem cells combined with edaravone on expressions of aquaporin-4, Bcl-2, and brain-derived neurotrophic factor after cerebral infarction in rats. METHODS:Eighty Wistar rats were selected to establish models of cerebral infarction by right middle cerebral artery occlusion, and then randomly divided into control group, bone marrow mesenchymal stem cells group, edaravone group and edaravone+bone marrow mesenchymal stem cells group (combination group). After 6 hours of modeling, rats from these four groups were respectively injected via the tail vein with PBS, bone marrow mesenchymal stem cells, edaravone and edaravone+bone marrow mesenchymal stem cells. After 72 hours, the rats were decapitated to take brain tissues. Consequently, expressions of aquaporin-4, Bcl-2, and brain-derived neurotrophic factor mRNA and protein were determined by RT-PCR and western blot methods. After 12, 24 and 36 hours, TUNEL method was used for the determination of cellapoptosis. RESULTS AND CONCLUSION:The expressions of Bcl-2 and brain-derived neurotrophic factor were higher in the combination group than the other three groups (P<0.05), but the expression of aquaporin-4 was lowest in the combination group (P<0.05). The number of apoptotic cells in the combination group was significantly lower than that in the other three groups. These findings suggest that the combination of bone marrow mesenchymal stem cells and edaravone can improve expressions of Bcl-2 and brain-derived neurotrophic factor in the injured site, and significantly inhibit neuronal apoptosis. Meanwhile, the combination therapy can decrease expression of aquaporin-4 and mitigate cerebral edema, which is superior to bone marrow mesenchymal stem celltransplantation and edaravone alone.
3.The detection and signicance of homocysteine, vascular endothelial growth factor and adiponectin levels in type 2 diabetic patients with diabetic retinopathy
Chinese Journal of Primary Medicine and Pharmacy 2012;19(15):2274-2275
Objective To investigate the change of homocysteine level,vascular endothelial growth factor (VEGF) and adiponectin levels in type 2 diabetic patients with diabetic retinopathy and its signicance.Methods 60 patients with diabetic retinopathy ( DR group) and 40 patients with normal fundus ( NDR goup) were selected.30 healthy subjects were used as control group.The serum levels of Hcy,VEGF and adiponectin were detected.Results The serum levels of Hcy and VEGF of DR group and NDR goup patients were higher than that of control group and had statistical significance(all P <0.05) ;The serum levels of Hcy and VEGF of DR group were higher than that of NDR group( all P < 0.05 ).The serum level of adiponectin of DR group and NDR goup patients was lower than that of control group ( all P < 0.05 ) ; The serum level of adiponectin of DR group was lower than that of NDR group ( all P < 0.05 ).Hcy and VEGF had a positive correlation with adiponectin( all P < 0.05 ).Conclusion Hcy,VEGF and adiponectin may play important roles in the initiation and sustainment of DR.
4.Effects of peroxisome proliferator-activated receptor gamma agonists on fibronectin expression after SiO2 stimulation
Chinese Journal of Tissue Engineering Research 2011;15(21):3972-3974
BACKGROUND: The effect and mechanism of peroxisome proliferator-activated receptor gamma (PPARγ) agonists on transforming growth factor (TGF)-β1-induced fibrotic responses in lung fibroblasts remain unclear, and seldom reported.OBJECTIVE: To study the effects of PPARγ agonists on TGF-β1-induced fibrotic responses in lung fibroblasts, so as to investigate its effects in preventing pulmonary interstitial fibrosis of silicosis. METHODS: The pulmonary alveolar macrophage was prepared with 200 mg/L SiO2 and the supernatants were got. Chinese hamster lung fibroblasts were incubated with the prepared supernatants. Then a cellular model in vitro for studying pulmonary fibrosis induced by SiO2 was developed. Chinese hamster lung fibroblasts were cultured to observe the effects of the PPARγ ligand (15 d-PGJ2) and its agonists (troglitazone and ciglitazone) on the expression of TGF-β1-induced fibronectin. RT-PCR was used to detect the mRNA expression of fibronectin and Western blotting was used to detect the protein expression of fibronectin. RESULTS AND CONCLUSION: (1) The expression of TGF-β1 mRNA showed an effect in a dose- (0-5 μg/L) and time- (0-24 hours) dependent manner. (2) PPARγ ligands and agonists reduced the mRNA and protein expressions of fibronectin. Results suggested that PPARγ agonists can inhibit TGF-β1-induced fibronectin synthesis after stimulation by SiO2 and may play a potential role in preventing pulmonary interstitial fibrosis.
5.Comparison of the effect of loop electrosurgical excision procedure and microwave in the treatment of chronic cervicitis
Chinese Journal of Primary Medicine and Pharmacy 2013;20(18):2809-2811
Objective To explore the difference of efficacy between LEEP and microwave treatment on chronic cervicitis.Methods According to the different treatment method,400 patients with chronic cervicitis were divided into LEEP group (LEEP treatment) and microwave group (microwave treatment),each group 200 cases.The treatment time,amount of bleeding and the healing effect between the two groups were compared and analyzed.Results The operative time,amount of bleeding before and after operation,vaginal fluid time after surgery of LEEP group were (6.94 ± 1.13) min,(2.13 ± 0.32) ml,(15.23 ± 3.40) mi,(7.06 ± 1.47) d,which were better than those of the microwave group[(16.13 ± 2.81) main,(5.94 ± 1.45) ml,(50.06 ± 7.86) ml,(17.58 ± 4.33) d] (t =42.91、36.29、57.52、32.54,all P < 0.05).The number of recovery patients had no statistically significant differences in mild,moderate patients of the two groups(97 cases vs 104 cases and 54 cases vs 45 cases,χ2 =0.81,1.35,all P >0.05),and the number of recovery patients in the LEEP group was better than that in the microwave group(23 cases vsl4 cases,χ2=6.87,P < 0.05).Conclusion The efficacy of LEEP knife on chronic cervicitis was significantly.It has a less operative time,less blood loss,better recovery.It is worthy of promotion.
6.The observation of clinical efficacy and adverse reactions of three dimensional-conformal radiotherapy combined with oral capecitabine in the treatment of stage Ⅱ, Ⅲrectal cancer after operation
Chinese Journal of Postgraduates of Medicine 2011;34(19):21-23
Objective To observe the clinical efficacy and adverse drug reactions of three dimensional-conformal radiotherapy combined with oral capecitabine in the treatment of stage Ⅱ , Ⅲ rectal cancer after operation. Methods Sixty-three patients of stage Ⅱ ,Ⅲ rectal eancer after operation with informed consent were divided into two groups by random digits table, 33 cases of observation group were treated by three dimensional-conformal radiotherapy combined with oral capecitabine, 30 cases of control group were treated by three dimensional-conformal radiotherapy only. Results The total effective rate in observation group was 84.8% (28/33), it was higher than that in control group [63.3% (19/30)], the difference between the two groups was statistically significant (P < 0.05). The occurrence rate of adverse reactions in two groups were compared, the difference was not statistically significant [57.6%(19/33) vs.50.0% (15/30)] (P>0.05). Conclusion Three dimensional-conformal radiotherapy combined with oral capecitabine in the treatment of stage Ⅱ,Ⅲrectal cancer after operation has satisfactory effect and acceptable adverse reaction, it is worth generalizing and applying.
7.Application of DNA barcoding technique of COXⅠ gene in identification of ticks
International Journal of Laboratory Medicine 2015;(24):3570-3571
Objective To investigate the application of the cytochrome C oxidase subunit Ⅰ gene(COXⅠ ) barcoding in the i‐dentification of wild‐caught ticks .Methods The COXⅠ gene of 9 caught tick individuals with different species was sequenced ,the DNAstar software was used to conduct the sequence comparison and homology analysis .Meanwhile the philp3 .6 software was a‐dopted to select the maximal likelihood(ML) method for constructing the evolutionary trees .Results In the phylogenetic trees ,the samples of sh2011040702 ,ra2011042193 and ra2011051168 with Haemaphysalis were in a branch ,sh2011051404 ,sh2011051408 and ra2011041177 with dermacentor were clustered together ,and sh2011051837 ,sh2011041917 and ra2011041175 with hyalomma were in a branch ,which were consistent with the morphological identification results .Conclusion Making the COXⅠ gene sequence as tick DNA barcoding has certain feasibility for identifying the tick species .
8.Investigation on common human soil-transmitted nematode infections in Quanzhou City in 2012
Chinese Journal of Schistosomiasis Control 2014;(2):228-229
Objective To understand the epidemic situation of common human soil-transmitted nematode infections in Quan-zhou City in 2012,so as to provide the evidence for improving the prevention and control measures. Methods The residents aged above 3 years from 5 townships in 2 counties were investigated to detect the parasite eggs(hookworm,Ascaris lumbricoides,Trich-uris trichura)by Kato-Katz technique. One kindergarten of each county was randomly selected and 228 children were investigated to detect Enterubius vermicularis eggs by the cellophane tape anus test. Results The total hookworm infection rate was 3.60%(69/1919). For the hookworm infection rates,there was no significant difference among different areas and between different genders, but there were significant differences among different age groups and different careers. No Enterubius vermicularis eggs were detect-ed. Conclusion The effect of the prevention and control of Ascaris lumbricoides,Trichuris trichura and Enterubius vermicularis in-fections is remarkable. However,the infection rate of hookworm has a rising trend and the prevention and control of hookworm in-fection should be strengthened.
9.Study on the dynamic distribution of [~(14)C]benzo(a)pyrene in the corpus striatum
Journal of Chongqing Medical University 2003;0(06):-
Objective:To study the dynamic distribution of BaP in the corpus striatum by r-counting and light microscopic autoradiography,then to explore the neurotoxic mechanism of BaP.Methods:100 SD male rats were divided into control group(n=40)and test group(n=60),experimental animals were given a single intravenous injection of 3.7?105 Bq/kg of 14CBaP while the same doses of Normal Saline were given to the control group.The rats were sacrificed at 1h,1 d,2 d,3 d and 7 d after the administration of radiolabelled BaP.During the experiment,some toxicological symptoms were observed and the ratios of brain-weight/body-weight were detected.Light microscopic autoradiography and r-counting were used to observe the dynamic distribution of BaP in the corpus striatum.Results:The change of toxicological symptoms are observed and the decrease ratios of brain-weight/body-weight are detected.R-counting shows that the percentage dose/g of 14CBaP in striatum is significant higher than in hippocampus and cortex at 1d and 2 d after administration.Light microscopic autoradiography shows that the silver granules in striatum reach the peak in 1d and sharp decrease in 2 d,which can be found even at 7d.Conclusion:BaP can penetrate the blood-brain barrier and distribute in corpus striatum,inducing CNS toxicity in SD rat.
10.Relationship between white blood cell and hospital mortality in patients with acute myocardial infarction
Journal of Chongqing Medical University 2007;0(07):-
15?109 had statistical difference. The same difference was found with group of N