Objective:To observe the efficacy of rosuvastatin combined with the conventional treatment in the patients with acute cerebral infarction (ACI) and the influence on the serum levels of MMp2, vasostatin-2 and sICAM-1.Methods:Totally 136 patients with ACI were randomly divided into the routine treatment group and the rosuvastatin group with 68 ones in each .The patients in the routine treatment group were treated with the conventional treatment , and those in the rosuvastatin group were treated with rosuvastatin additionally.The treatment course was 15 days.The efficacy, adverse drug reactions and the changes of MMp 2, vasostatin-2 and sI-CAM-1 in the two groups were compared .Results:The effective rate was 92.65%in rosuvastatin group and that was 77.94%in the routine treatment group, and the difference was statistically significant (P<0.05).After the treatment, the levels of MMp2, vasosta-tin-2 and sICAM-1 for the mild, medium and severe types in the two groups were significantly decreased when compared with those be -fore the treatment (P<0.05), and the decrease for the same type in rosuvastatin group was more notable than that in the routine treat -ment group (P<0.05).The indices for different subgroups with various infarcts in rosuvastatin group were all lower than those for the same subgroup in the routine treatment group (P<0.05).The incidence of adverse drug reactions (ADR) in two group was no signifi-cant difference (P>0.05).Conclusion:Rosuvastatin used in the patients with ACI has better clinical efficacy than the routine treat-ment, which can reduce the levels of MMp 2, vasostatin-2 and sICAM-1 and is worthy of clinical promotion .

Objective To prepare totel glucosides in paeony(TGP) pellets by extrusion-spheronization and to optimize the formulation of TGP sustained-release pellets coated with Eudragit RS 100.Methods The TGP sustained-release pellets were prepared by mini Glatt fluidized bed coating method.The factors to influence the drug release behaviors and their properties were evaluated.Results The optimal TGP sustained-release pellet was shown significant sustained-releasing at the loading weight of copolymers of 6% and the plasticizer concentration of 10%.And the curves of cumulative drug release were fit for Peppas and Higuchi equation.Conclusion The pellets showed an obviously sustained-release effect.

BACKGROUND:The V-ATPase a3 transport system plays a crucial role on bone resorption mechanism of the osteoclasts.
OBJECTIVE:To observe the expression of V-ATPase a3 transport system in fracture repair and the effect of V-ATPase a3 transport system inhibitor on fracture healing.
METHODS:We retrieved related literatures in the periodicals database with the key words, and screen them according to the inclusion criteria. The literatures were included in this study after the evaluation of quality.
RESULTS AND CONCLUSION:V-ATPase a3 transport system widely exists in the cytoplasm membrane and organel e membrane of eukaryotic cells. V-ATPase a3 has two structural domains:V0 and V1. V0 structural domain is the proton transport channel, V1 structural domain is mainly the hydrolysis of ATP. V-ATPase a3 transport system focuses on the fril ed edge of osteoclasts, H+is transported to form a high concentration, dissolves inorganic minerals and provides the acidic environment for hydrolytic enzymes, thus being involved in bone resorption. So V-ATPase a3 transport system is selected as the research target in the fracture repair and reshape.

BACKGROUND:The OPG-RANKL-RANK transport system plays a crucial role in bone resorption mechanism of osteoclasts. OBJECTIVE:To observe the expression of OPG-RANKL-RANK signaling system in osteoclasts, osteoporosis, and the targeted therapy of OPG-RANKL-RANK signaling system. METHODS:We retrieved related literatures in the periodicals database with the key words of“osteoprotegerin, RANKL, RANK, osteoclasts, osteoporosis”in English and Chinese. According to the inclusion criteria, the literatures were included in this study after the evaluation of quality. RESULTS AND CONCLUSION:The mature of osteoclasts is mediated via OPG-RANKL-RANK signaling system and its associated signaling pathways. This signal pathway leads to the mechanism of osteoporosis. At the genetic and molecular levels, the targeted therapy of osteoporosis has become the focus. OPG-RANKL-RANK signaling system can provide a research platform for targeted treatment of osteoporosis, and OPG-RANKL-RANK signaling system is an important way to the regulation of osteoclasts and osteoporosis.

Objetcvi e Inhibitor of growth TNG3 is a candidate tumor suppressor gene ,which belongs to the human ING gene family .It has been interested by scientist because of its putative roles as tumor suppressors . There is a low expression level of ING3 in a variety of tumors.However,the relationship of ING3 and the develop-ment of colorectal cancer is unclear yet .The aim of this studyis to examine the expression of ING 3 in colorectal cancer by qRT-PCR.Methods Statistical analysis was performed with the expression of ING 3 mRNA which has been evaluated in 82 matched samples comprising primary colorectal cancer and paired non -cancerous mu-cosa samples.Results In 51%colorectal cancer patients ,the expression level of ING3 was significantly lower in cancer tissue than that in normal tissue .The expression level of ING3 was closely related to pT、pM stage , and TNM stage(P<0.05).The Univariate analysis showed that the pT、pN、pM stage,TNMstage and ING3 expression levels were associated with disease -free survival(P<0.05).CRC patients with low -expression level of ING3 showed shorter disease -free survivals(P<0.05).Conclusion The expression of ING3 might contribute to the CRC development or progression .

In order to investigate the effects of phenylalanine, tyrosine and tyramine on the growth of Lycoris radiata suspension cells and the accumulation of alkaloids, the growth quantity of the cells as well as the content of alkaloids in cells were determined, which were treated with above three kinds of precursors alone and phenylalanine combined with tyrosine respectively. The results indicate that the addition of phenylalanine alone and addition of phenylalanine on the basis of tyrosine at high concentration (200 micromol/L) had no significant effect on the growth of Lycoris radiata suspension cells and the content of alkaloids in cells; whereas tyrosine and tyramine promoted the growth of the cells and alkaloids accumulation. Treated with tyrosine at high concentration (200 micromol/L), the content of alkaloids of the cells was 2.56-fold higher than that of the control group, the amounts of lycoramine (3.77 mg/g) and galanthamine (4.46 mg/g) were 6.61-fold and 6.97-fold higher than that of the control group, respectively. When treated with tyramine (200 micromol/L), the amount of alkaloids in Lycoris radiata suspension cells was 2.63-fold higher than that of the control group, and the amounts of lycoramine (4.45 mg/g) and galanthamine (5.14 mg/g) were 9.08-fold and 9.18-fold higher than that of the control group, respectively. The above results demonstrate that adding tyrosine and tyramine in the media significantly promoted the growth of the Lycoris radiata suspension cells and alkaloids accumulation in the cells.
Amaryllidaceae Alkaloids ; chemistry ; Cells, Cultured ; Culture Media ; chemistry ; Galantamine ; chemistry ; Lycoris ; chemistry ; growth & development ; Phenylalanine ; chemistry ; Plant Cells ; chemistry ; Plant Extracts

Objective To study CT numbers correction of kilo?voltage cone?beam CT (KV?CBCT) images for dose calculation. Method Aligning the CBCT images with plan CT images, then obtain the background scatter by subtracting CT images from CBCT images. The background scatter is then processed by low?pass filter. The final CBCT images are acquired by subtracting the background scatter from the raw CBCT. KV?CBCT images of Catphan600 phantom and four patients with pelvic tumors were obtained with the linac?integrated CBCT system. The CBCT images were modified to correct the CT numbers. Finally, compare HU numbers between corrected CBCT and planning CT by paired T test. Evaluate the image quality and accuracy of dose calculation of the modified CBCT images. Results The proposed method reduces the artifacts of CBCT images significantly. The differences of CT numbers were 232 HU, 89 HU, 29 HU and 66 HU for air, fat, muscle and femoral head between CT and CBCT respectively (P= 0?? 39,0?? 66,0?? 59,1).The differences of CT numbers between CT and CBCT was reduced to within 5 HU. And the error of dose calculation with corrected CBCT images was within 2%. Conclusions The CT numbers of corrected CBCT are similar with plan CT images and dose calculations based on the modified CBCT show good agreement with plan CT.

Objective To verify the daily delivery accuracy of volumetric-modulated arc therapy (VMAT) and achieve the process quality control (PQC) of linac using statistical process control (SPC)technology.Methods The log files of all treatments were taken out from the linac system.An in-house software which created by Matlab 7.14 was used to analyze the daily parameters accuracy and the mechanism and dose delivery accuracy of the linac for each VMAT,and an daily evaluation report was automatically created for the linac.The stability of the linac and the deviation of the delivery accuracy for various cancer sites were also analyzed.To achieve the process quality control of hnac using SPC technology,the control limit of each parameter was calculated by Johnson alternation and the single value control charts were drawn.Results 76 patients mainly with nasopharyngeal carcinoma,cervical carcinoma,rectal cancer and laryngeal cancer,got the treatment daily with VMAT technology,and a total of 2 446 arcs were delivered by the linac in continuous 16 days.The gantry angle error,y and x collimator position error,MLC leaf position error and dose delivery error were 0.49°,0.09 mm,0.38 mm,0.31 mm,0.05 MU,respectively.Compare to the nasopharynx,uteri,rectal and larynx cancer,it can be seen that the variation factors of dose delivery and gantry angle errors for various cancer sites were higher,which was 8.10％ and 4.54％,respectively.Through the process quality control of the linac,it was found that all the parameters were in control.While some abnormal points arose (the error was greater than UCL),and the ratio of the gantry angle which was out of control (0.45％) was the highest in all parameters.Conclusions linac delivery accuracy could be monitored and verified during the whole VMAT treatment for each patient,and the daily running condition of linac could be monitored.Through the introduction of SPC technology and the control charts,the process quality control of linac in VMAT could be achieved.It is a financial and valid method for the daily quality assurance of linac.

Objective To evaluate the image quality and registration accuracy of a three?dimensional ( 3D ) dynamic phantom in four?dimensional computed tomography ( 4DCT ) and four?dimensional cone?beam computed tomography ( 4DCBCT) . Methods The Computerized Imaging Reference Systems Dynamic Thorax Phantom Model 008A was scanned to get 4DCT and 4DCBCT images. Two balls with different diameters ( ?= 1 cm and ?= 2 cm) were used to simulate tumors with different sizes. The motion mode of the balls was 3D sinusoidal motion at 0?25 Hz ( the amplitudes along the x, y, and z axes were ±1?0 cm, ±0?4 cm, and ±0?2 cm, respectively). Gross target volumes (GTVs) from 10?phase bins, internal gross target volumes (IGTV), and target volumes on maximum intensity projection (MIP) and mean intensity projection (MeanIP) images were contoured and calculated. Target volumes on 4DCT or 4DCBCT images were compared with the static and dynamic volumes of the balls ( VS and VD ) . The matching index ( MI) of target volumes between the 4DCT and 4DCBCT images was analyzed after rigid image registration. Results The GTV in each phase of the image was larger than VS . The difference between the average GTV derived from 10 phases of 4DCT or 4DCBCT images and Vs of the small ball was larger than that of the large ball ( 35?03% vs. 22?66%;32?62% vs. 17?00%) . All the IGTVs and target volumes on MIP images were slightly larger than VD , but target volumes on MeanIP images were smaller than VD . The average MI of 10?phase bins of the small ball was smaller than that of the large ball ( 66?76% vs. 82?21%) . Moreover, MIs of IGTV,MIP, and MeanIP of the small ball were also smaller than those of the large ball ( 77?39% vs. 90?29%;75?90% vs. 89?28%;74?47% vs. 82?74%) . Conclusions In the case of a relatively small tumor volume and a relatively large motion amplitude, 4DCT and 4DCBCT should be used with caution for comparison of image registration.

The particles suspended in seawater have great influence on pollutant migration and transformation in marine environment, while the lipophilic algae toxins enriched by the particles suspended in seawater will lead more serious toxicity to marine filter feeders. In this study, a new method was developed for the simultaneous determination of eight lipophilic algae toxins in suspended particles by ultra performance liquid chromatography-tandem mass spectrometry ( UPLC-MS/MS ) . After extracted with methanol by ultrasonic-assisted extraction, the sample was separated on an Acquity UPLC BEH C18 column (50 mm×2. 1 mm, 1. 7 μm) using gradient elution of acetonitrile and water containing 5 mmol/L ammonium acetate as eluent modifiers. The qualitative and quantitative analyses were carried out by electrospray ionization ( ESI) tandem mass spectrometry in multiple reaction monitoring ( MRM) mode. Under the optimal conditions, satisfactory precision (relative standard deviations (RSD≤14. 1%), recoveries (83. 8%-110. 4%) and detection limits (2. 9-103 pg/g) of the method were achieved. Good linearity (R2≥0. 99) was also obtained for all studied analytes. Then, the method was applied to determine the amounts of the eight lipophilic marine toxins in authentic suspended particle samples collected from Qingdao near-shore area. Pectenotoxin 2 ( PTX2 ) was detected in the samples from Shilaoren beach and No. 3 bathing beach with concentration ranges of 717 and 790 pg/g, respectively.