Objective:To investigate the stiffness characteristic of triple-negative human breast cancer at different size in a implantation nude female mice model using shear wave elastography(SWE) and to compare the clinical pathologic features of tumors with elasticity variables.Methods:Human breast cancer MDA-MB-231 cells were injected into 30 nude female mice and 27 transplanted tumors were successfully found in nude female mice. Ultrasound and SWE were longitudinally performed on maximum diameter plane of 21 tumours in 21 nude mice. The elastic parameters of maximal elasticity(Emax), mean elasticity (Emean) and standard deviation of elasticity(Esd) were recorded. The mice were divided into 3 groups according to the tumor size. They were group A with tumor size less than or equal to 5 mm, group B with tumor size greater than 5 mm and less than or equal to 10 mm, group C with tumor size larger than 10 mm and smaller than or equal to 15 mm. Compared with pathology, the relationships between Ki67 of transplanted tumor and elastic parameters were analyzed.Results:As the transplanted tumors increased, the values of Emax, Esd, Ki67 all increased. The lesions maximal size, Emax, Esd, Ki67 were significant higher in group B ( P<0.001, P=0.006, P=0.002, P=0.026) and group C ( P<0.001, P<0.001, P<0.001, P=0.028) than group A. The other parameters were not significantly different among the groups(all P>0.05). The size of transplanted tumors was significantly and positively correlated with Emax ( rs=0.673, P=0.001), Esd ( rs=0.661, P=0.001), and Ki67 ( rs=0.509, P=0.018). Conclusions:SWE Emax and Esd can reflect the tumor tissue stiffness change and biological activity during the tumor growth.

Objective To study hemodynamics of cerebral blood flow in newborns with asphyxia.Method Bilateral cerebral electrical admittance plethysmogram(BCEAP) was used to explore characteristics of cerebral blood flow in 20 healthy newborns and 20 newborns with asphyxia respectively from first to fourth day after birth.Results Both the ratio of Hs to b-S(Hs/ b-S) and index of admittance differential loop(ADL) Ⅰ+Ⅱ decreased significantly in newborns with asphyxia compared to normal control from first to fourth day after birth(P

OBJECTIVETo comparatively study the curative effects of combined massage-smouldering-washing therapy (MSW) and mini-invasive surgery in treating knee osteoarthritis (KOA) of mild-moderate degree so as to provide a suitable therapeutic protocol.

METHODSSixty patients with KOA were assigned to two groups. The treatment group was treated with MSW once a day for 10 days as one course, and 4 courses were applied totally with an interval of 3 days between courses. The control group was treated with mini-invasive surgery by arthroscopic mopping, followed with post-operational intra-articular cavity injection with sodium hyaluronate injection, 20 mg every week for 5 times continuously. The therapeutic effect and the changes in scores of clinical symptoms and signs before and after treatment in the two groups were observed and compared.

RESULTSOutcome of 3-month follow-up showed the effective rate was 90% in the treatment group and 93.33% in the control group; scores of clinical symptoms and signs effectively improved in both groups, but the improvement on the 4 items (joint pain, swelling, soreness of loin and knee, and cold aversion of knee) was superior in the treatment group, while that on the other 4 items (pain during squatting or half-squatting, up stairs or down stairs, joint stiffiness and joint kinetic capacity) was superior in the control group (P < 0.05).

CONCLUSIONBoth MSW and mini-invasive surgery have definite curative effect on KOA but with different particularities.

Adult ; Aged ; Aged, 80 and over ; Combined Modality Therapy ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Knee Joint ; physiopathology ; surgery ; Male ; Massage ; Middle Aged ; Minimally Invasive Surgical Procedures ; Osteoarthritis, Knee ; drug therapy ; physiopathology ; surgery ; therapy

Objective To evaluate the effects of a health education and behavior intervention project,and to provide.a scientific basis for brucellosis control.Methods By stratified cluster sampling method,target population from 6 township in Meilisi District were randomly selected to carry out baseline survey.Of these 6 townships 4 were selected as intervention townships,and two as control townships.A health education and behavior intervention program was carried out in intervention townships,and after intervention target population from 6 township were participated in the questionnaire survey.Results Awareness rate of common sense knowledge of farmers in intervention townships was 84.33％ (5237/6210) after intervention which was significantly higher than 53.56％ (2003/3740),before the intervention (x2 =112.49,P ＜ 0.01),and also higher than 54.15 ％ (1787/3300) of the control after the intervention (x2 =101.53,P ＜ 0.01).Average awareness rate(82.13％,2550/3105) of common sense on prevention after intervention was significantly higher than 58.77％(1099/1870) before the intervention (x2 =57.19,P ＜ 0.01).After intervention,average awareness rate of common sense on prevention was significantly higher than that of the average of control townships (70.36％,1161/1650,x2 =25.49,P ＜ 0.01).The awareness rate of treatment before intervention was 36.80％ (116/299),which increased to 76.36％ (436/571)after intervention (x2 =119.38,P ＜ 0.01).After the intervention the awareness rate of intervention townships was significantly higher than that of the controls (33.72％,88/261,x2 =139.69,P ＜ 0.01).In survey of these high-risk behavior in intervention townships,in addition to cattle and sheep which were regularly immunized in the intervention townships(35.91％,121/337),and the control townships(32.01％,97/303,x2 =1.08,P ＞ 0.05) and their difference was not significant,other processing such asapoblema,killing cattle,sheep,cattle to deliver,cutting the wool,regular disinfection,and accuracy of high-risk behavior protection were significantly higher than those of controls[89.83％(106/l18),91.07％(51/56),84.75％(150/177),66.67％(32/48),73.78％(242/328),51.22％(42/82),75.56％(34/45),33.69％(63/187),27.78％(15/54),21.63％(61/282),x2 value were 38.00,5.82,103.84,15.84 and 173.67,all P ＜ 0.05].Conclusion After implementation of health education and behavioral intervention,farmers brucellosis prevention knowledge and awareness of risk behaviors have significantly improved,which have achieved the desired effect.

Metabolic abnormalities were identified and carotid intima-media-thickness(IMT)was measured in 221 individuals at risk for metabolic syndrome(MS).The results indicated that IMT was significantly thicker in MS individuals than that in non-MS individuals(P＜0.01).And there was a tendency of progressive increase in IMT with increasing components of metabolic syndrome.

OBJECTIVETo study the content of mineral elements and the principal components in Gastrodia elata.

METHODMineral elements were determined by ICP and the data was analyzed by SPSS.

RESULTK element has the highest content-and the average content was 15.31 g x kg(-1). The average content of N element was 8.99 g x kg(-1), followed by K element. The coefficient of variation of K and N was small, but the Mn was the biggest with 51.39%. The highly significant positive correlation was found among N, P and K . Three principal components were selected by principal components analysis to evaluate the quality of G. elata. P, B, N, K, Cu, Mn, Fe and Mg were the characteristic elements of G. elata.

CONCLUSIONThe content of K and N elements was higher and relatively stable. The variation of Mn content was biggest. The quality of G. elata in Guizhou and Yunnan was better from the perspective of mineral elements.

Drugs, Chinese Herbal ; analysis ; Gastrodia ; chemistry ; Minerals ; analysis ; Principal Component Analysis

OBJECTIVETo build three-dimensional (3-D) visible model for surgical treatment of infection of fascial spaces of hand.

METHODSSerial thin cross-sections (0.2 mm) of hand were made by cryomicrotome, and the thin cross-sections of metacarpal parts were observed. A personal computer was employed to reconstruct 3-D model of metacarpal fascial space.

RESULTSThe shapes, locations and adjacent relations of the mid-palmar space, thenar space and metacarpal bones were displayed clearly from computerized 3-D model, which could be the cross-reference of the cross-sections expediently.

CONCLUSIONThe computerized 3-D reconstruction of metacarpal fascial spaces can provide some guidance for surgical treatment of infection and other diseases of metacarpal fascial spaces.

Anatomy, Cross-Sectional ; Hand ; anatomy & histology ; Humans ; Image Processing, Computer-Assisted ; Imaging, Three-Dimensional

This paper introduces the design and development of a teleimaging diagnosis system by using B/S mode. A detailed design on the telediagnosis process and telediagnosis management is presented, focusing on resolving medical image transmission, management and display in the internet, and is trying to integrate the teleimaging diagnosis system with PACS.
Diagnostic Imaging ; Information Storage and Retrieval ; Internet ; Software Design ; Teleradiology ; methods

To study the effect of steaming and baking process on contents of alkaloids in Aconite Lateralis Radix (Fuzi), 13 alkaloids were analyzed by UPLC-MS/MS equipped with ESI ion source in MRM mode. In steaming process, the contents of diester-diterpenoid alkaloids decreased rapidly, the contents of monoester-diterpenoid alkaloids firstly increased, reached the peak at 40 min, and then deceased gradually. The contents of aconine alkaloids (mesaconine, aconine and hypaconine) increased all the time during processing, while the contents of fuziline, songorine, karacoline, salsolionl were stable or slightly decreased. In baking process, dynamic variations of alkaloids were different from that in the steaming process. Diester-diterpenoid alkaloids were degraded slightly slower than in steaming process. Monoester-diterpenoid alkaloids, aconine alkaloids and the total alkaloids had been destroyed at different degrees, their contents were significantly lower than the ones in steaming Fuzi at the same processing time. This experiment revealed the dynamic variations of alkaloids in the course of steaming and baking. Two processing methods which can both effectively remove the toxic ingredients and retain the active ingredients are simple and controllable, and are valuable for popularization and application.
Aconitine ; analogs & derivatives ; isolation & purification ; Aconitum ; chemistry ; Alkaloids ; isolation & purification ; Chromatography, High Pressure Liquid ; Drug Stability ; Drugs, Chinese Herbal ; isolation & purification ; Hot Temperature ; Plant Extracts ; isolation & purification ; Steam ; Tandem Mass Spectrometry ; Time Factors

BACKGROUNDMutations in PAX6 gene have been shown to be the genetic cause of aniridia, which is a severe panocular eye disease characterised by iris hypoplasia. However, there is no study to do genetic analysis of aniridia, although there are several case reports in China. Here, we describe a mutation analysis of PAX6 in a large Chinese family with aniridia.

METHODSGenomic DNA from venous blood samples was prepared. Haplotype analysis was performed with two genetic markers (D11S904 and D11S935). Fourteen exons of the PAX6 gene were amplified from genomic DNA. Polymerase chain reaction (PCR) products of each exon were analysed by single strand conformational polymorphism (SSCP). The PCR products having an abnormal pattern were sequenced to confirm the mutation.

RESULTSSignificant evidence for allele sharing in affected patients was detected suggesting that PAX6 mutation links to aniridia in this family. An extra band corresponding to exon 9 in PAX6 was found by single strand conformational polymorphism analysis in all the aniridia patients in this family, but not detected in the unaffected members. A mutation of C to T was detected by sequencing at the nucleotide 1080 that converts the Arg codon (CGA) to the termination codon (TGA).

CONCLUSIONSAniridia is caused by a nonsense mutation of PAX6 gene in the large Chinese kindred. Genetic test is important to prevent the transmission of aniridia to their offsprings in the kindred by prenatal diagnosis.

Aniridia ; genetics ; Eye Proteins ; genetics ; Female ; Homeodomain Proteins ; genetics ; Humans ; Male ; Mutation ; PAX6 Transcription Factor ; Paired Box Transcription Factors ; Pedigree ; Repressor Proteins ; genetics