We applied Demons and accelerated Demons elastic registration algorithm in radiotherapy cone beam CT (CBCT) images, We provided software support for real-time understanding of organ changes during radiotherapy. We wrote a 3D CBCT image elastic registration program using Matlab software, and we tested and verified the images of two patients with cervical cancer 3D CBCT images for elastic registration, based on the classic Demons algorithm, minimum mean square error (MSE) decreased 59.7%, correlation coefficient (CC) increased 11.0%. While for the accelerated Demons algorithm, MSE decreased 40.1%, CC increased 7.2%. The experimental verification with two methods of Demons algorithm obtained the desired results, but the small difference appeared to be lack of precision, and the total registration time was a little long. All these problems need to be further improved for accuracy and reducing of time.
Algorithms ; Cone-Beam Computed Tomography ; Humans ; Image Interpretation, Computer-Assisted ; Imaging, Three-Dimensional ; Software

This paper aimed to investigate the botanical origins of Isatidis Radix and Isatidis Folium, and clarify the confusion of its classification. The second internal transcribed spacer (ITS2) of ribosomal DNA, the chloroplast matK gene of 22 samples from some major production areas were amplified and sequenced. Sequence assembly and consensus sequence generation were performed using the CodonCode Aligner. Phylogenetic study was performed using MEGA 4.0 software in accordance with the Kimura 2-Parameter (K2P) model, and the phylogenetic tree was constructed using the neighbor-joining methods. The results showed that the length of ITS2 sequence of the botanical origins of Isatidis Radix and Isatidis Folium was 191 bp. The sequence showed that some samples had several SNP sites, and some samples had heterozygosis sites. In the NJ tree, based on ITS2 sequence, the studied samples were separated into two groups, and one of them was gathered with Isatis tinctoria L. The studied samples also were divided into two groups obviously based on the chloroplast matK gene. In conclusion, our results support that the botanical origins of Isatidis Radix and Isatidis Folium are Isatis indigotica Fortune, and Isatis indigotica and Isatis tinctoria are two distinct species. This study doesn't support the opinion about the combination of these two species in Flora of China.

Objective To investigate the tumor-inhibitory effect of cytokine-induced killer cells(CIK)co-cul-tured with dendritic cells (DC)pulsed by breast cancer stem cell antigen on the same tumor-bearing mice. Methods Breast cancer stem cells were isolated from the cell line of MCF-7/ADR and extract lyses antigen of the stem cell was saved. DC and CIK derived from peripheral blood mononuclear cells of healthy individuals were co-cultured and pulsed or un-pulsed by the above antigen lyses. This DC+CIK were injected to breast tumorbearing mice (BCSC-AP-DC+CIK group), and were used to compared with the common breast cancer cell antigen (rather than breast cancer stem cell antigen) pulsed DC+CIK group(AP-DC+CIK group), DC+CIK group, CIK CIK group and normal saline group(NS group). The tumor-inhibitory effect were evaluated and compared among all 5 groups through the tumor size, TdT-mediated dUTP nick end labeling test (TUNEL), examining expression level of bcl-2 and bax by immunohistochemistry. Results The tumor size in each group before and after therapy and the tumor size after therapy between each group was of significant difference(P＜0.05). The maximum size is NS group(3.625±0.093)cm3 and BCSC-AP-DC+CIK group is minimum,which is (1.234±0.131)cm3. BC-SC-AP-DC+CIK group is of highest expression of bax and apoptotic index value, lowest bcl-2 expression in all 5 groups. Conclusion The CIK co-cultured with DC pulsed breast cancer stem cell antigen was more effective to induce apoptosis of breast cancer cells than those of CIK cells co-cultured with DC pulsed breast cancer cell antigen,CIK cells co-cultured with DC and CIK cells.

Objective To provide the exact anatomic basis for guidance of inserting catheter promptly.Methods Thirty five cases of adult crania were fixed by 10% liquor formaldehyde. In turn with precise discection of surrounding tissues and exposing carotid C 5～C 1 segments, paid attention to observe and measure vessel's trend, angulations, and direction of routes. Analysis of 50 cases of negative result of normal brain DSA is then taken as the basis for further application. Results Angulations of siphon were divided into 3 kinds of angulation and 1 characteristic curve but, the difference with the counter part is insignificant. Conclusions Mastering the applied anatomy of carotid could improve catheter maneuver and the rate of success.

Objective Calcineurin-NFAT pathway in the regulation of VSMCs proliferation induced by catecholamines.Methods Primary VSMCs from rat aorta were used as the experimental model.Proliferation of VSMCs was measured by MTT assay and cell count.Calcineurin protein and its activity were assayed with immunoblotting and free inorganic phosphate content analysis respectively.Localization of NFATc1 was detected by immunofluorescence staining.Results Phenylephrine(PE,an ?1-adrenoceptor agonist) increased VSMCs proliferation.Prazosin(an ?1-adrenoceptor antagonist),cyclosporin A(CsA,an inhibitor of calcineurin) and chelerythrine(an inhibitor of PKC) decreased PE-induced absorbance and cell number.Timolol(?-adrenoceptor antagonist) has no effect on absorbance and cell number induced by PE.Additional treatment with CsA further inhibited PE-induced absorbance and cell number compared with the chelerythrine pretreatment group.CsA and chelerythrine alone had no significant effect on either absorbance or cell number.CsA decresed PE-induced alcineurin level and its activity.NFATc1 was translocated from cytoplasm to nucleus upon treatment with PE.This translocation was reversed by CsA.Conclusion CsA partially inhibits PE-induced VSMCs proliferation via inhibiting calcineurin activity and NFATc1 nuclear translocation.Calcineurin-NFATc1 pathway is involved in hyperplastic growth of VSMCs induced by catecholamines.

Objective To compare the analgesic effect of morphine combined with lornoxicam in different proportions in rats. Methods 63 male adult SD rats were assigned randomly into nine groups (7 each). Under the 1.4% isoflurane anesthesia, an incision of 1cm in length was made in the plantar region of the left hind paw parallel to the muscle according to the method of Brennan. The rats in sham operation group (A) inhaled 1.4% isoflurane for 5 min but no incision was made, the rats in operation control group (B) received hypodermic injection of 1ml 0.9% NaCl 1h after incision, the rats in groups C to H and group L received hypodermic injection of morphine combined with lornoxicam in different proportions (6mg/kg∶0mg/kg; 1mg/kg∶5mg/kg; 2mg/kg∶4mg/kg; 3mg/kg∶3mg/kg; 4mg/kg∶2mg/kg; 5mg/kg∶1mg/kg and 0mg/kg∶6mg/kg, respectively) 1h after incision. Analgesic effect was assessed by cumulative pain score within 1 hour after administration. Results The cumulative pain scores of rats in group A was 0.375?0.518, which was significantly lower than that of the other groups (P0.05). The scores in groups F and G were 3.625?1.061 and 3.750?1.165 respectively, which were significantly lower than those in groups C, D, E and L (P

Purpose:To improve the methads of approach in s urgery of esophageal cancer ,increase resection rate of esophagectomy, decrease the remnant cancer in margin and mortality after operation, enhance the postoper ative effect. Methods:From Jan.1999 to Dec. 2002,we adopted different surgica l approach as in esophagectomy in 297cases with esophageal cancer, such as left posterior thoracotomy(group I), left posterior thoracotomy with cervical incisi on (group Ⅱ),right anterior thoracotomy (group Ⅲ), right posterior thoracotomy (group Ⅳ). Results:The rate of operative resection was 98.7%(293/297)an d for groups Ⅰ, Ⅱ, Ⅲ, Ⅳ they were 98.2%(86/87)、98.1%(52/53)、98.5%(133/135) 、100%(22/22) respectively;operation-related mortality was 1.7%(5/297) and fo r groups Ⅰ, Ⅱ, Ⅲ, Ⅳ it was 2.3%(2/87)、1.9%(1/53)、0.75%(1/135)、4.5%(1/22) respectively;the occurrence of remnant cancer was 3.8%(11/293) and for groups Ⅰ, Ⅱ, Ⅲ, Ⅳ it was 4.7%(4/86)、3.8%(2/52)、2.6%(3/133)、9.1%(2/22) respective ly;the rate of postoperative complication was 12.8%(38/297) and for groups Ⅰ, Ⅱ, Ⅲ, Ⅳ it was 17.2%(15/87)、9.4%(5/53)、11.1%(15/135)、13.6%(3/22) respectiv ely. In the number of lymph node resected , there was statistical difference bet ween groups Ⅲ, Ⅳ and Ⅰ, Ⅱ(P0.05).Conclusions:Right anterior thoracotomy, right posterior thoraco tomy were more satisfactory operative approaches in radical total thoracic esop hagectomy of esophageal carcinoma. Through these two approaches,we not only can resect mediastinal and abdominal lymph nodes radically, but can also decrease t he cancer of at the margin and mortality after operation.

Objective The aim of this study was to evaluate the value of QT dispersion and heart rate variability in predicting early ventricular fibrillation during hospitalization after acute myocardial infarction.Methods Seventy-two patients underwent 24-hour Holter monitoring within 6 hours after onset of acute myocardial infarction.They were divided into 2 groups,VF group (12 cases) and Non-VF group (60 cases),based on whether they had experienced an episode of ventricular fibrillation during their hospitalization.Index of QT dispersion and heart rate variability were calculated on the basis of 24 hours Holter recording.Results The HRV indexes showed significant difference (respectively,.P.

Objective To explore the effects of treating schizophrenia due to stagnation of phlegm and qi with Shugan-qingzhang formula. Methods 85 patients with schizophrenia were randomly recruited into a control group and a treatment group. The treatment group was treated with Shugan-qingzhang formula, and the control group was treated with oral risperidone. Clinical effects of both groups were evaluated by positive and negative syndrome scale (PANSS) and symptom rating scale. Adverse drug reaction was evaluated by treatment emergent symptom scale (TESS). Results Score of PANSS was significantly changed after the treatment in both groups (F treatment group=4.86, t'treatment group= 17.88, v'treatment group=59, P treatment group＜0.01; F control group=4.27, t' control group=18.76, v' control group=59, P control group＜0.01); scores of PANSS in the treatment group were significantly better than the control group at the second and forth weak (F 2weeks= 1.02, t 2weeks=2.50, P 2weeks＜0.05; F 4weeks= 1.04, t 4weeks=3.55, P 4 weeks＜0.01), while no significant difference at the sixth week between the two groups (F=0.92, t=0.91, P＞0.05); There was no statistical difference of PANSS score between the two groups in terms of western medicine curative effects (x2=0.05, P＞0.05), but significant difference in terms of TCM curative effects (x2=36.26, P＜0.01); There was also statistic difference of adverse drug reaction between the two groups (x2= 8.17, P＜0.01). Conclusion Shugan-qingzhang formula can control symptoms of schizophrenia due to stagnation of phlegm and qi in a certain period.

FGFR2 plays an important role in cell proliferation and differentiation and FGFR2 gene has its own genetic polymorphism. It has recently been demonstrated that this genetic polymorphism is associated with risk of development of breast cancer and clinically pathological factors