2.Effect of Weici Acupuncture on Shoulder-hand Syndrome after Stroke
Chinese Journal of Rehabilitation Theory and Practice 2008;14(5):472-472
Objective To observe the effect of Weici acupuncture on shoulder-hand syndrome after acute stroke.Methods 90 cases were divided into two groups:the test group(49 cases) who were treated with Weici(a kind of acupuncture) and the control group(41 cases) who were treated with the normal acupuncture.Results The total effective ratio of the test group was 93.88%,and that of the control group was 73.17%(χ2=7.2863,P<0.01).Conclusion Weici acupuncture is more affective on shoulder-hand syndrome after acute stroke than the normal acupuncture.
3.Effects of Partner Rehabilitation Gymnastics on Periarthritis of Shoulder in Later Stage
Chinese Journal of Rehabilitation Theory and Practice 2010;16(1):64-65
ObjectiveTo observe the effects of the Partner Rehabilitation Gymnastics on periarthritis of shoulder in later stage. MethodsPatients were randomly divided into 2 groups: 60 in treatment group accepted the Partner Rehabilitation Gymnastics, and the other 60 accepted the forcing active and passive physiotherapy.Results76.66% of the treatment group recovered, 96.66% improved; while 45% of the control group recovered, 73.33% improved. The scores of visual analogous scale and activity of daily living improved after treatment in both groups, and the differences pre- and post-treatment were more in treatment group than in control group. ConclusionThe Partner Rehabilitation Gymnastics is more effective than the routine forcing active and passive physiotherapy on periarthritis of shoulder.
4.Rehabilitation effect of functional exercises on nerve root cervical spondylosis
Chinese Journal of Rehabilitation Theory and Practice 2008;14(11):1065-1066
目的观察功能锻炼对神经根型颈椎病恢复期的作用和效果。方法患者随机分为试验组49例和对照组48例。试验组采用体育保健学的锻炼方法结合常规手法整复,对照组只采用与试验组相同的手法整复。结果两组间基线资料无显著性差异(P>0.05)。试验组的总有效率为89.8%,对照组的总有效率为56.3%(P<0.01),试验组治疗前后症状积分明显优于对照组(P<0.01)。结论主动锻炼有助于改善神经根型颈椎病疗效。
5.Experimental study of a novel photosensitizer for sensitive and multidrug-resistant gastric cancer treatment
Jingjing CHEN ; Shuping LIU ; Tianjun LIU
International Journal of Biomedical Engineering 2017;40(1):6-11,后插4
Objective To study the photodynamic therapeutical efficacy of a novel photosensitizer DTP on sensitive gastric cancer cells (SGC7901) and vincristine-resistant gastric cancer cells (SGC7901/VCR).Methods The P-gp expression on the SGC7901 and SGC7901/VCR cell membrane was indirectly confirmed by fluorescence microscopy.The survival rates of SGC7901 and SGC7901/VCR cells were evaluated by cell counting kit (CCK-8) after photodynamic therapy with DTP.The intracellular DTP uptake levels of two types of cell were determined using a fluorescence spectrophotometer,and the intracellular DTP distributions were observed by laser scanning confocal microscopy.Results The novel photosensitizer DTP has considerable photodynamic cytotoxic effect on SGC7901 and SGC7901/VCR cells.However,this effect on the SGC7901NCR cells was relatively weak (P<0.05),and could not be enhanced by P-gp inhibitor verapamil or cyclosporine A(P>0.05).The DTP uptake level in SGC7901 cells was higher than that in SGC7901/VCR cells (P<0.05),and could not be enhanced by P-gp inhibitor verapamil and cyclosporin A (P>0.05).It was found that DTP distributed in the lysosomes of SGC7901 cells and in the lysosomes and mitochondria of SGC7901/VCR cells.Conclusions The novel photosensitizer DTP is not the substrate of multidrug transporter P-gp,and its weaker photodynamic cytotoxic effect on SGC7901/VCR cells is independent of the P-gp overexpression on its cell membrane,which may be related to the distribution of intracellular DTP in the two types of cell.
6.Study on porphyrin and related metal-porphyrin recognition of carbohydrate
Li WU ; Difeng LUO ; Tianjun LIU
International Journal of Biomedical Engineering 2009;32(6):336-340
Objective To study the molecular recognition of porphyrin compounds with carbohydrate molecular. Methods Fluorescent titration method was developed to explore the porphyrin and its metal porphyrin compounds interaction with carbohydrate compounds. Results The binding constants indicated that porphyrin and its metal compounds involved in this experiment could recognize carbohydrate compounds respectively, and interaction with lactose is stronger than glucose; Comparison with free porphyrin, metal ion Zn~(2+) and Fe~(3+) in the core of porphyrin compounds could enhance the binding capability with carbohydrate. Conclusion Porphyrin compounds has selective molecular recognition abilityto sugar molecular.
7.Application of Mg-PLGA-rhbFGF stent on angiogenesis in hindlimb ischemia
Hanmei BAO ; Tianjun LIU ; Feng LV
International Journal of Biomedical Engineering 2012;35(1):33-36
ObjectiveTo prepare recombinant human basic fibroblast growth factor (rhbFGF) loaded magnesium-poly(D,L-lactide-co-glycolide) (Mg-PLGA) stent and to evaluate its angiogenesis effect in rat model of hindlimb ischemia.MethodsThe stent was prepared with spiral magnesium (Mg) and loaded with therapeutic agent rhbFGF and PLGA matrix.In vitro drug release study was carried out and the effect was evaluated using a standard animal model of rat hindlimb ischemia.A mechanical drill was conducted and the stent was implanted.The concentrations of Mg2+ in the muscle adjacent to the stent,rat plasma,urine and stools of the experimental animals were tested to analyze the degradation and metabolism of metal Mg.Immunohistochemical staining was performed to evaluate the angiogenesis effect of the stent.ResultsThe drug loaded in the stent could release continuously for about 4 weeks.The concentrations of Mg2+ in the rat plasma,urine and stools were within normal range.Immunohistochemical and quantitative analysis showed that the effect of Mg-PLGA-rhbFGF stent on angiogenesis of rat limb ischemia was better than that of the control group.ConclusionRhbFGF loaded MgPLGA stent could promote angiogenesis of rat limb ischemia,and it may provide theoretical basis for the critical patients suffered from lower limb ischemic disease.
8.Application of BODIPY for tooth whitening as a photosensitive drug
Li LU ; Yanli CUI ; Tianjun LIU
International Journal of Biomedical Engineering 2013;36(5):274-276,285,后插2
Objective To study the tooth whitening effect of boron-dipyrromethene (BODIPY) as a photosensitive drug combining photodynamic therapy (PDT) and the influence on the surface of the enamel.Methods After oxidation of hydrogen peroxide or BODIPY by photodynamic therapy,the extracted teeth were evaluated by Vita shade guides matching.The change of surface enamel on the crystals and microstructure was observed by scanning electron microscopy (SEM).Results The teeth treated with BODIPY by PDT were smooth and whitened with the remineralization of teeth surface in morphology.While the teeth treated with hydrogen peroxide were whitened obviously but the surface morphology of the teeth was demineralized seriously.Conclusion The results suggest that PDT is effective for teeth whitening and can promote the remineralization of teeth surface enamel with BODIPY as a photosensitive drug.PDT is expected to become a new method for tooth whitening.
9.Photodynamic efficiency of new porphyrin-typed drug on HGC27 and MGC803 cells
Jingjing CHEN ; Yumao WANG ; Tianjun LIU
International Journal of Biomedical Engineering 2011;34(3):154-157,166,后插2
Objective To explore photodynamic therapeutic efficiency and related mechanisms of a new porphyrin-typed photodynamic therapy (PDT) drug synthesized in our lab on HGC27 and MGC803 cells.Methods Two different kinds of gastric cancer cells, HGC27 and MGC803, were chosen as cell lines to evaluate the PDT efficiency of new porphyrin-typed PDT drug based upon four group experiments: control (no drug, no light) group, drug treated group (only drug, no light), light treated group (no drug, only light) and experiment group (with drug and light at the same time). Bleaching method was used to evaluate the photostability of new porphyrin-typed PDT drug upon repititive illumination. MTT assay was carried out to test the survival rate of tumor cells after PDT. Cofocal laser scanning microscope (CLSM) was applied to observe subcellular localization of drug in HGC27 and MGC803 cells (mitochondria and lysosome). Results New porphyrin-typed PDT drug has good stability to light, no toxicity on HGC27 and MGC803 cells without light (P>0.05), while intense lethal effect was observed upon light illumination (P<0.05). The peak efficacy appeared when concentration is 3.12 μmol/L for both HGC27 and MGC803 cells and the new porphyrin-typed PDT drug localizes in lysosome other than traditional mitochondrion. Conclusion New porphyrin-typed PDT drug is a good photodynamic therapeutic sensitizer for HGC27 and MGC803 tumor cells.
10.Synthesis of glucose conjugated porphyrins
Zuowei YU ; Xujun HE ; Tianjun LIU
International Journal of Biomedical Engineering 2011;34(3):158-162,178
Objective Porphyrin, when conjugated with glucose, will be improved in its water solubility and biocompatibility. Methods In this paper, based on 4- (2, 3, 4, 6-tetra-O-acetyl-β-D-glucosyloxy)benzaldehyde and pyrrole, glucose conjugated porphyrins were synthesized in an optimized process, while porphyrin dimer was synthesized by the Ag-promoted coupling reaction of glycoconjugated porphyrin monomer.Results The compounds were characterized by 1H NMR and MS. Results showed that porphyrin conjugated with two glucose units has slight water solubility, while porphyrin conjugated with three or four glucose units has excellent water solubility. Conclusion Glucoconjugation improves water-solubility of porphyrins, which will enlarge its application in biological fields.