Objective To study the mechanism of the rat’s myocardium induced by macleaya cordata. Methods36 SD rats were randomly assigned to 2 experimental groups treated by macleaya cordata decoction with a dose of 1/6 LD50, 1/3 LD50 respectively and a control group treated with distilled water by oral administration. The rats were killed 6 hours after the administration for taking the cardiac muscle to examine the Ca2+.Mg2+-ATPase, SDH while observing the structures. ResoultsIn the group treated by macleaya cordata with dose of 1/6 LD50, the activity of Ca2+.Mg2+-ATPase and SDH were increased significantly.However, the groups treated by macleaya cordata with dose of 1/3 LD50 and distilled water, the activity of Ca2+.Mg2+-ATPase,SDH showed no significant change. The apoptosise in myocardium cells of rat’s can be observed in the experimental groups,while the changes were not seen in control group. ConclusionThe results indicate that the macleaye cordata can induce and improve the apoptosis of myocardium cells in low dose, and these effects may be induced by stimulating the activity of Ca2+.Mg2+-ATPase,SDH in myocardium cells.

Objective To investigate the correlation with lung function and clinical significance of lung function and exhaled nitric oxide (FeNO) changes in various disease stages for children with asthma.Methods Seventy-nine asthma outpatient children aged 6-14 years old were selected from Nanjing Children's Hospital Affiliated to Nanjing Medical University,25 cases of whom were at acute exacerbation stage,28 cases at chronic persistent stage and 26 cases at remission stage.Twenty-five healthy children were randomly selected as the healthy control group, for whom FeNO and lung functions were measured respectively.FeNO and lung functions were analyzed on whether there were statistical differences between the subjects in these groups and whether their FeNO and lung functions were correlated.Results Comparison of FeNO and the percentages of the expected value(FEV1 ％) of forced expiratory volume in one second between acute exacerbation group [(58.79 ± 12.25) ppb and (52.25 ± 7.89) ％], chronic persistent group [(42.13 ± 11.38) ppb and (66.14 ± 5.29) ％], remission group [(25.41 ± 7.15) ppb and (86.22 ± 15.21) ％] and the healthy control group [(12.84 ± 6.22) ppb and (93.62 ± 12.13)％], showed that FeNO in asthma acute exacerbation group, chronic persistent group and remission group was higher than that in the healthy control group, with statistically significant difference(all P ＜0.05).Except for remission group,in which FEV1 was not statistically significant different from the healthy control group (P ＞ 0.05) ,the differences in other groups were all statistically significant(all P ＜ 0.05).FeNO and FEV1％ were negatively correlated at acute exacerbation (r =-0.779, P =0.000) , but they were not correlated at chronic persistent and remission state.Conclusions FeNO values increased in asthma children.FeNO as a sensitive indicator to reflect airway inflammation can be used to evaluate the control and severity of airway inflammation.FeNO and FEV1％ of lung functions were negatively correlated in asthma children at acute stage.

The projection area of the volar surface of the human hand was estimated on 52 young Chinese adults(26 males and 26 females.)ranging in age from 18 to 31. The average projection area of the volar surface of the hand was 145.20 square centimetres.It occupied 0.93％ of the calculated body surface.The area of the palm was 86.69 square centimetres, amounting to 59.70％ of the volar surface of the whole hand. All dimensions of different parts of the hand of males were larger than those of females. There was no difference between the right and left hands of both sexes. The coefficient of correlation among the body length, body weight, length and width of the hand, surface area of the whole body with the projection area of the volar surface of the hand was calculated. All showed close correlation. The regression of the estimation of the projection area of the volar surface of the hand with hand length and hand width was established. It is therefore to be assumed that the area of the volar surface of the hand calculated as one per cent of the body area, as it is often used in surgical examina- tions, seems to be a little higher than its real area(0.93％.

Community-based rehabilitation (CBR) is positioned to provide various strategies for people with disabilities for achieving the embracing development of the community. CBR is also the terminal of the three-level rehabilitation service system. This paper analyzed the status of domestic community-based rehabilitation based on the document, discussed the possible problems referred to the international concepts about CBR, and suggested a new service pattern of CBR based on the internet and information technology.

Objective To investigate the relationship of gene polymorphisms of angiotensin eonvertion enzyme (ACE), aldosterone synthase (CYP11B2)and α-adducin with subclinical renal lesion. Methods I/D polymorphism of ACE gene, -344T/C polymorphism of CYP11B2 gene and 460G/T polymorphism of α-adduein gene were detected by polymerase chain reaction (PCR) and restrictive fragment length polymorphism(RFLP) in 604 normotensive subjects and 1081 primary hypertensive patients whose creatinine (Cr) were less than 2mg/L. The primary hypertensive and normotensive subjects were divided respectively into normal group (Ccr≥60ml/min) and subclinical renal lesion (Ccr＜60 ml/min) group, according to creatinine clearance rate (Ccr) calculated by Cockcroft-Gault equation. Results ANOVA, contingency X2 and partition of chi-square were selected. The frequencies of different genotypes of ACE, CYP11B2, and α-adducin were in agreement with Hardy-Weinberg equilibrium in our study. Normal renal function group (A group, n=512) and subclinical renal lesion group (B group, n=92) in normotensive subjects, and normal renal function group (C group, n=828) and subclinical renal lesion group (D group, n=252) in hypertensive patients were compared. The patients in B and D groups were older than those in A and C groups (P<0.01). But there were no significant differences in the age between B and D groups, and between A and C groups. The frequency of ACE-DD genotype in D group was the highest (22.6%) among four groups and the frequency of α-adducin-TT genotype in A group was the lowest (13.3%) among four groups (all P<0.01). The differences of genotype frequencies of ACE and α-adducin genes among other three groups were not significant. No significant difference was found in frequencies of genotypes of CYP11B2 among four groups. Conclusions Subclinical renal lesion is increased with the aging. ACE-DD genotype is related with hypertension and subclinical renal lesion, while α-adducin-TT genotype is related with hypertension and subclinical renal lesion. Association between the genotypes of CYP11B2 and subclinical renal lesion is not found.

The establishment of professional master degree in pathology is a new branch of the professional degree graduate education.It is an important measure to bring the clinical pathology into the teaching system of clinical medicine specialty in China.In response to a wave of education reform in the new century, our department has positively converted the traditional postgraduate training and teaching mode, innovated the teaching idea and content, and continued to improve the teaching method and means.On the basis of fully respecting students' subject consciousness, we have combined traditional and modern teaching means, made full use of modern education information technology, actively built and promoted pathology specialized degree graduate student research, teaching and clinical trinity management: the new training mode.Through the practice of bilingual, network, clinical problems and cases of teaching and combined with the leading edge forum of famous pathologists' research and the professional standardized training of clinical pathology, we have extensively carried out the education training, which is based on the theory, practice, research, and sub specialist guidance.

Objective To analyse the 24 h ambulatory blood pressure monitoring(ABPM)character-istics and effect of health education in children with orthostatic hypertension (OHT)retrospectively.Methods A total of 19 children[1 1 males and 8 females with mean age of (1 1.26 ±2.16)years]who were outpa-tients or had been hospitalized in the Second Xiangya Hospital of Central South University due to unexplained syncope,presyncope,and finally diagnosed as OHT after head up tilt test(HUTT).HUTT and ABPM were reexamined at 12 ~190(47 ±48 )days after receiving health education (including psychological guidance, avoiding sudden changes in posture,increasing the amount of water,avoiding syncope inducement,etc). Results (1 )ABPM parameters:there were no significant differences of ABPM parameters before and after health education respectively(P ﹥0.05,respectively).(2)After the health education,HUTT 3 min diastolic pressure[(71.89 ±1.60)mmHg vs.(76.47 ±8.49)mmHg,1 mmHg =0.133 kPa,t =2.785,P ﹤0.05]and diastolic blood pressure change[(7.37 ±4.98)mmHg vs.(12.42 ±3.27)mmHg,t =3.560,P ﹤0.05]de-creased than those before health education.(3 )Blood pressure pattern changes:after the health education,“dipper blood pressure”increased and “non-dipper blood pressure”decreased[42.1 %(8 /19)vs.31.6%(6 /19)and 57.9%(1 1 /19)vs.68.4%(13 /19),χ2 =0.452,P ﹥0.05,respectively].(4)OHT cure rate:after health education,to review the HUTT,within 3 minutes in HUTT,blood pressure changes of 14 cases were normal range.The cure rate was 73.7%.Conclusion OHT children's blood type is given priority to with “non-dipper blood pressure”,and the ratio of“dipper blood pressure”increase and the HUTT 3 min di-astolic pressure and diastolic blood pressure change decrease after health education.It suggests that the health education of OHT children has a certain clinical effect.

The ultrasonic estimation of fetal weight at delivery is of important prognostic significance in obstetrical practice. The convertional regression formulas used for estimating fetal weight have the disadvantage of less reliability. In this study, we used the back propagation neural network (BP) to estimate Fetal Weight. Some input variables were adopted in constructing the BP model: biparietal diameter (BPD), cerebellum transverse diameter (TCD), abdominal circumference (AC), liver length (LL), femur length (FL), fetal thigh soft tissue thickness (FSTT), and gestational age (GA). The fetal weights of 109 singleton fetuses were estimated. In the training group and validation group, coincidence rates were 89.77% and 76.19% respectively. The results show that the estimation based on neural network is more accurate than that by regression method. GA, its unit is not week but day in our formulas, is very valuable in combination with other ultrasonic parameters on estimation.
Anthropometry ; methods ; Birth Weight ; Female ; Fetal Weight ; Gestational Age ; Humans ; Infant, Newborn ; Neural Networks (Computer) ; Pregnancy ; Regression Analysis ; Term Birth

Cell culture is one of the usual methods for studying living cell and tissue, the method presented in this paper is based on image processing and analyzing technology for activity estimation of mesenchymal stem cells (MSCs). The existing activity estimation methods are costly, complex and invasive. In this method, thresholding is used to preprocess image and to separate out the growth hallow. Then the area is calculated by counting the pixels of the growth hallow. The changes of the activity estimated by this method are similar to those by corresponding cellular experiments. Compared with the existing methods in biology, medicine or medical cellular science, this method is easier, faster, cost-effective and non-invasive. The proposed method has been proved to be efficient by primary experiments of MSCs.
Animals ; Cells, Cultured ; Femur ; cytology ; Image Processing, Computer-Assisted ; methods ; Mesenchymal Stromal Cells ; cytology ; Rats ; Rats, Sprague-Dawley

To investigate the effect of basic fibroblast growth factor(bFGF) gene transfection on the proliferation and differentiation of mesenchymal stem cells (MSCs) and to provide basis for accelerating bone defect repairing using gene-enhanced tissue engineering technology, Rabbit periosteum-derived MSCs were transfected with the full-length rat bFGF cDNA in vitro. The transient and stable gene expression of bFGF were determined by immunohistochemistry. The proliferation and the synthesis alkaline phosphatase (ALP) and osteocalcin(OC) of the transfected MSCs were also examined. The results showed that bFGF cDNA could be transferred into osteoblasts and expressed stably at least 4 weeks. The proliferation and OC content of genetically modified MSCs were increased significantly, whereas the ALP activity remained no change. In conclusion, transfer of gene encoding bFGF to MSCs increases its proliferation and osteogenesis property. Based on the successful conjunction of the existing techniques of tissue engineering with the novel possibilities offered by modern gene transfer technology, an innovative concept, molecular tissue engineering, was put forward for the first time. As a new branch of tissue engineering, it represents both a new area and an important trend in tissue engineering research.
Alkaline Phosphatase ; biosynthesis ; Animals ; Cell Differentiation ; physiology ; Cell Division ; physiology ; Cells, Cultured ; Fibroblast Growth Factor 2 ; genetics ; physiology ; Osteocalcin ; biosynthesis ; Rabbits ; Stem Cells ; cytology ; physiology ; Stromal Cells ; cytology ; physiology ; Tissue Engineering ; methods ; Transfection