Objective To investigate the basic property of baicalin complex with phospholipid. Methods To study the baicalin complex with phospholipid by means of IR, 1H-NMR, quantum chemistry, dissolubility, and the property of permeation membrane. Results The result of IR indicated that spectrogram of baicalin complex with phospholipid had the same tendency in property with baicalin and mixture. While the peak shape and wave number of -C=O, -N-H appeared abnormal. The 1H-NMR indicated that the phospholipid complex did not produce new chemical bonds between the two molecules. But the peak shape and chemical shift produced a certain change. The quantum chemistry result revealed that the two molecules did not form new compounds. On the basis of space matching, the two formed a relatively stable spatial relation by a weaker atomic orbitaols overlap method. The solubility of baicalin was significantly improved, the permeation membrane ratio of baicalin was boost. Conclusion The formation of baicalin-phospholipid complex does not produce new chemical bonds. The two form a relatively stable complex by some weak interaction force. The physicochemical properties and biological characteristics of the complex are greatly improved.

Objective:To repair knee joint defects in rabbits with rat adipose-derived stem cells induced by cartilage-derived morphogenetic protein growth factor 1 (CDMP1) ,so as to assess the feasibility of using heterogeneity cells as the seed cells for cartilage tissue engineering. Methods: The second generation ADSCs were seeded on scaffold, cultured for another two weeks in presence of CDMP1(50 μg/L),and identified by immunohistochemistory method. Bilateral rabbit knee joint defect model was established. The left side defect was embedded with ADSCs-scaffold composite (experimental group); the right side was embedded only with the scaffold(control group). Nine rabbits were killed in each group 8,16,24, and 48 weeks after embedding and the tissues were made into slices for safranine O and haematoxylin eosin staining. Results: In the experimental group the defects were filled with white semi-transparent tissues 8 weeks after embedding, with clear boundary to the surrounding cartilage; 16 weeks after embedding, the boundary of defect was further improved but still could be seen; 24 weeks after embedding, the repair outcomes were satisfactory, with the newly-generated chondrocytes having a nearly normal morphology (sphere shape,cartilage lacuna),and safranine O and haematoxylin eosin staining results were both positive; and 48 weeks after embedding, the boundary of the repair region could be clearly seen,and the repair effects were not as satisfactory as those of after 24 weeks. In the control group the boundary between the repairing area and the normal circumjacent area was visible at all 4 time points,with clear boundary and granulation tissues; the newly generated cells took a spindle shape and were negative for H-E and safranine O staining. Conclusion: The knee joint defects of rabbits can be satisfactorily repaired by using CDMP1-induced ADSCs seeded on spongy bone scaffold of cattle, which provides a theoretical basis for using heterogeneity cells as the seed cells for cartilage tissue engineering.

Objective: To study the inhibitory action of self-designed dithiothreitol(DTT) eye drops on selenite-induced rat cataract(simulating the senile cataract). Methods: Twelve-day-old SD rats (body weight about 25 g) were injected with Na2SeO3 subcutaneouly, quaque die alterna, for 3 times (0.2 ml/time, with a total amount of 210 μg). Six days later over 90% of rats developed nuclear cataracts. The right eyes of the rats were treated with 25 mmol/L DTT eye drops (4 times/day, 1 drop/ time) for 3 weeks. The left eyes were taken as control and were treated with normal saline at the same dosage. The lens were examined using slit lamp and the diameter of the cataract plaques were measured using vernier cursor. The eyes of cataract models were also treated with 25 mmol/L DTT (n = 89), pirenoxine eye drops (PDE, Japan, n = 22), pirenoxine sodium eye drops (PSED, China, n = 24, 2 died during the experiment), and normal saline (n = 45). Each eye was administered with 1 drop/time, 4 times/day for 3 weeks. Then slit lamp was used to examine the cortical lesions of both eye and the lens opacity. Results: The DTT eye drops significantly reduced the diameter of the cataract plaques and significantly reduced the rate of the cortical opacity after the nuclear cataract. The inhibitory action of DTT eye drops on the selenite-induced cataract was superior to pirenoxine eye drops(Japan) and pirenoxine sodium eye drops(China). Conclusion: Our study shows that the DTT eye drops has satisfactory inhibitory action on selenite-induced cataract in rats.

Objective: To observe the clinical effect of auricular point sticking therapy for cardiac syndrome X (CSX) in women. Methods: A total of 64 patients were randomized into two groups by the random number table, with 32 cases in each group. Patients in the control group received conventional treatment for angina, while patients in the treatment group received auricular point sticking therapy on the basis of conventional treatment. After 8 weeks of treatment, the levels of serum estradiol (E2), nitric oxide (NO) and endothelium-1 (ET-1) were compared to evaluate the therapeutic effect. Results: After 8 weeks of treatment, the total effective rate and markedly effective rate in the treatment group were significantly higher than those in the control group, and the between-group comparisons showed statistical significance (both P<0.05). After treatment, the scores of chest pain and tightness in the control group dropped significantly, and the intra-group comparisons showed statistical significance (both P<0.05); the scores of chest pain and tightness, palpitations, weakness and shortness of breath in the treatment group dropped significantly, and the intra-group comparisons showed statistical significance (all P<0.05); there were significant inter-group differences in the scores of chest pain and tightness. After treatment, the intra-group comparisons of E2, NO and ET-1 contents in the control group showed no statistical significance (all P>0.05), while the E2, NO and ET-1 contents in the treatment group changed significantly after treatment and were significantly different from those in the control group (all P<0.05). Conclusion: Auricular point sticking on the basis of conventional treatment was effective for CSX in women, and is worth clinical application.

Escherichia coli ; classification ; Escherichia coli Infections ; epidemiology ; microbiology ; Germany ; epidemiology ; Humans ; Pandemics

To study the expression and significance of CD44 splice variant V6 in squamous cell carcinoma of the tongue. The expression levels of CD44v6 protein were determined immunohistochemically in 40 squamous cell carcinoma of the tongue specimens (24 non metastatic primary tumors and 16 metastatic lymph nodes), 12 squamous cell papilloma and 9 normal tongue mucosa using murine exon V6 specific monoclonal antibody. The CD44v6 overexpression was detectable in 29 of 40 squamous carcinoma of the tongue, in 2 of 12 squamous cell papilloma, in 0 of 9 mormal mucosa, P

Objective To investigate the anti-fatigue mechanism of Relieving Fatigue Decoction(RFD). Methods 33 male SD rats were evenly randomized into control, model and RFD groups. 21d exhausted swim exercise was used to make an exercise-induced fatigue rat model. RFD group was given RFD in routine doses by gastric perfusion for 21d, once a day. After decapitation, the rats’ testis, liver and blood were taken, detecting MDA with thio-barbituric acid method, GSH and GSH-PX with chromatometry method, SOD with xanthine oxidase method, testosterone and corticosterone with ELISA method respectively. Results (1)Compared with control group, the serum MDA in model group increased significantly(P0.05); the testis, liver and serum GSH, GSH-PX reduced significantly(P0.05); the serum testosterone and corticosterone increased significantly(P0.05); the testis, liver and serum GSH increased significantly(P0.05); the liver SOD increased significantly(P0.05); the serum corticosterone decresed significantly(P0.05).Conclusion RFD may improve the activity of antioxidant enzymes in liver, testis and serum, and raise serum T/C level, which may underlie its action in impoving fatigue.

Objective To explore the effect of different frequencies interference of electoracupuncture on acute stress of C57BL/6 mice. Methods Thirty male C57BL/6 mice were randomly divided into model group,2Hz electroacupunture group and 100 Hz electroacupunture group.After interfering 7 days by electroacupuncture,all the mice were carried forced swimming tests and tail suspension test,and the immobility time in 5 minutes were taken down. Results The immobility time of forced swimming test and tail suspension test of 2 Hz eletroacupuncture group(32.00±14.73)s,(72.50±20.44)s was shorter than those of 100 Hz electoracupuncture group(145.60±34.62)s,(124.22±21.67)s( P <0.05); and the immobility time of 2 Hz eletroacupuncture group was shorter than that of model group(129.50±33.94)s,(142.23±20.05)s( P <0.05); but the immobility time of 100 Hz electroacupuncture group was no difference with that of model group( P >0.05). Conclusions The effect of 2 Hz eletroacupuncture could improve the behaviors of the acute stress of C57BL/6 mice and had the more effectiveness on anti-depression.

Objective: To investigate the changes of matrine concentration in rat local skin with time after transdermal administration of matrine transfersomes, and to evaluate the transdermal delivery properties. Methods: The matrine transfersomes were applied non-occlusively onto rat skin in vivo with abdominal hair removal, and the concentration of drugs in microdialysate of skin was detected by microdialysis and reverse phase high performance liquid chromatography. Furthermore, the concentration-time curves of matrine in microdialysates of skin were compared among marine transfersomes, liposomes, and deoxysodium cholate solution. Results: After the transfersomes were given to rats, the maximum peak time (tmax) of matrine skin concentration appeared at (4.200 ± 0.447) h. The maximum skin concentration (Cmax) was (0.927 ± 0.251) μg/mL and area under the curve (AUC0-8) was (5.033 ± 1.526) μg·h·mL-1, which were much higher than those of the liposomes and the solution (containing 0.8% sodium deoxycholate, P < 0.05), while tmax shortened much more than that of them. Conclusion: In vivo skin microdialysis could be used to assess the transdermal delivery properties of matrine transfersomes. And matrine transfersomes have the good transdermal permeability and efficacy.

OBJECTIVE: To study the accumulation dynamics and distribution law of vitexin during the whole year period in different parts of Vitex negundo var.cannabifolia (Sieb. et Zucc.). METHODS: Vitexin was obtained by ultrasonic extraction, and its content was determined by HPLC. Filodoor column (4.6 mm×150 mm, 5 μm) was used. Methanol-water (volume ratio of 4;6) was used as the mobile phase at a flow rate of 1 mL·min-1. The UV detective wavelength was set at 340 nm, injection volume was 5 μL, and the column temperature was set at 35°C. RESULTS: The content of vitexin was low in vitex negundo branches and flowers, and had obvious regularity in different growth periods of Vitex negundo leaves. The content of vitexin was the highest (1.380%-1.465%) in June and July. Along with the blooming and formation of negundo chastetree to their maturation, the content of vitexin in Vitex negundo leaves decreased. Its content was the lowest (0.720%-0.751%) in September and October. The content of vitexin in Vitex negundo seeds increased(0.435%-1.231%)with seed maturation. CONCLUSION: The content of vitexin in different parts of Vitex negundo presents a regular change in different periods. The detection of vitexin in different growth periods provides experimental basis for the selection of best collection phase and medical parts.