The cell volume, length, cross-section area, surface area, width and thickness of isolated cardiac myocytes were measured by using of a new computer system of coulter channelyzer and avias eye imaging analysis system. The rats, 3 weeks to 24 weeks in age after birth, were performed thoracic operation the morphological growth characteristics of isolated cardiac myocytes were observed.1. Physiological growth of normal cardiac myocytes was due to increase in cell volume, i. e. the cell length and cross-section area were enlarged. In the mean time, the changes in cross-section shape of myocytes happened when the myocytes growing.2. The major axis of cross-section area of myocytes was enlarged but the minor cross-section diameter did not show any more changes. So that, the growth lead to the cardiac myocytes be flattened in shape. The flattened growing pattern was one of the characteristics of normal growing myocytes. It might be very significant for the clinicians to eliminate the factors which would stimulate myocytes to be enlarged in cell width, and to treat and to prevent the heart disease.

Angiopoietin-like proteins are a family of proteins that are closely related to lipid, glucose and energy metabolism, as well as angiogenesis. To date, eight Angptls have been discovered, namely Angptl1 to Angptl8 that play key roles in metabolic regulation and marker assisted selection. In this review, we summarized current progress on the structure, signaling pathways, upstream regulatory genes and metabolic network of Angptl1-8. Finally, in combination with our work, the status and problems of animal breeding as well as the future prospects for Angptls were discussed.
Angiopoietins ; genetics ; metabolism ; Animals ; Breeding ; Energy Metabolism ; Gene Regulatory Networks ; Glucose ; metabolism ; Lipid Metabolism ; Metabolic Networks and Pathways ; Signal Transduction

Objective To study the variability of Traditional Chinese version of the Psycho-educational Profile-3rd edition (PEP-3) and Simplified Chinese version of the Psycho-educational Profile (C-PEP) as evaluating the special children. Methods 194 special children were evaluated with C-PEP and PEP-3 from April, 2011 to December, 2014. The scores of cognitive verbal/preverbal, expressive language, recep-tive language, gross motor, fine motor, visual-motor imitation, and communication and physical ability were compared. Results There were significant diferences in all the dimensions between PEP-3 and C-PEP scales (Z>3.446, P<0.01) except cognitive verbal/preverbal (Z=0.912, P=0.362). Conclusion There was difference between PEP-3 and C-PEP for the evaluation of special children.

Objective:To explore influence of probucol combined atorvastatin on blood viscosity ,transcranial Doppler (TCD) indexes and carotid plaque stability in patients with large artery‐derived cerebral infarction .Methods :A total of 100 patients with large artery‐derived cerebral infarction treated in our hospital from Apr 2014 to Apr 2016 were selected .According to random number table ,patients were randomly and equally divided into atorvastatin group (received atorvastatin based on routine treatment ) and combined treatment group (received probucol based on atorv‐astatin group) ,both groups were treated for six months .Related indexes before and after treatment were compared between two groups .Results :Compared with atorvastatin group after treatment ,there were significant reductions in levels of TC ,TG and LDL‐C ,and significant rise in HDL‐C level (P<0.01 all);significant reductions in whole blood high shear viscosity [(6.23 ± 0.38) mPa/s vs .(4.20 ± 0.42) mPa/s] ,whole blood low shear viscosity [(21.17 ± 5.83) mPa/s vs .(18.10 ± 4.44) mPa/s] ,plasma viscosity [ (2.10 ± 0.45) mPa/s vs .(1.72 ± 0.34) mPa/s] and fibrinogen (Fg) level [(4.35 ± 1.36) g/L vs .(3.30 ± 1.38) g/L] ,P<0.01 all;significant rise in systolic blood flow velocity (Vs) [left :(87.43 ± 14.56) cm/s vs .(95.45 ± 18.37) cm/s]and mean blood flow velocity (Vm) [left :(60.89 ± 16.03) cm/s vs .(75.38 ± 19.36) cm/s]of left and right MCA ,significant reduction in pulsatility index(PI) [(0.85 ± 0.22) vs .(0.75 ± 0.12)] , P<0.05 or <0.01;significant reductions in unstable plaque score [(4.93 ± 0.40) scores vs .(4.12 ± 0.35) scores]and recurrence rate of cerebral infarction (16.00% vs .2.00% ) in combined treatment group ,respectiely P=0.001 ,0.014. Conclusion:Probucol combined atorvastatin can significantly reduce blood viscosity ,significantly improve hemodynamics in patients with large artery‐derived cerebral infarction .Its an‐ti‐atherosclerosis effect is obvious ,therefore it can be used to prevent or reduce recurrence of cerebral infarction .

Objective To investigate the nursing points of the vacuum sealing drainage technology in children with refractory soft tissue infection in the limb.Methods A total of 9 children with refractory soft tissue infection in the limb were treated with vacuum sealing drainage technology from December 2010 to October 2012.Results All children who underwent vacuum sealing drainage technology were successful,among which 7 cases underwent continuous vacuum sealing drainage for 7 days and 2 cases replaced VSD material after continuous vacuum sealing drainage for 10 days and all wound with skin graft healed,without any complication.Conclusions Vacuum sealing drainage can remove thoroughly necrotic tissue of the wound and promote wound healing,the key points of nursing are to keep drainage tube unobstructed,adjust appropriate negative pressure and give close observation.

Objective To observe the effects of doxazosin on the expression of type Ⅰ and type Ⅲ collagen fiber in autoantibodies against α1-adrenergic receptors (α1-AA) positive diabetic rats,and to investigate the protective mechanism of doxazosin on cardiomyopathy of diabetic rats.Methods After establishment of diabetes model with streptozocin,diabetic rats were randomly divided into diabetic group (group A,n =10),doxazosin treated group (group B,n =10),α1-AA mediated group (group C,n =8),α1-AA plus doxazosin treated group (group D,n =8).Group C and group D were injected α1-AA (100 μg/100 g) by caudal vein at 0,4,8,12,and 16 weeks.Doxazosin (0.36 mg · kg-1 · d-1) was administered by lavage for 16 weeks in group B and group D,and other groups were given the same volume of saline every day.Expressions of type Ⅰ and type Ⅲ collagen fibers in myocardium of left ventricle were detected by immunohistochemical staining.Pathological changes in the myocardium were observed by both light and electron microscopes.Changes in collagen fiber in myocardium were detected by Van Gieson staining.Results Among various groups,there was no significant difference in blood glucose levels (P ＞ 0.05).After the intervention of doxazosin,body weight in group B and group D was greater than that of group A and group C (P＜0.05 or P＜0.01).Expression of type Ⅰ and type Ⅲ collagen fibers in myocardium in group D was lower than that in group C (P＜0.05).Expression of type Ⅰ and type Ⅲ collagen fibers in group B was lower than that in group A (P＜0.05) as well.Myocardial pathological changes in group C were most serious,showing reduced mitochondrial,vacuolar degeneration,and interstitial collagen hyperplasia.Cardiomyopathy in group D and group B was less marked as compared with that in group C and group A,respectively.Myocardial collagen fiber in group C was significantly increased and showed poor alignment.Compared with group C,myocardial collagen deposition in group D was obviously reduced.Conclusions Doxazosin may suppress type Ⅰ and type Ⅲ collagen expressions in myocardium of α1-AA mediated diabetic rats,resulting in alleviation of myocardial fibrosis and protection of myocardium in diabetic rats.

Objective To analyze the chemical components of Fructus Aurantii (FA) and Fructus Aurantii Immaturus (FAI).Methods HPLC-ESI-MS with Surveg mass spectrometer was used in the study.Chromatographic column: Symmetry Shield TM RP_ 18 (150 mm?3.9 mm, 5 ?m) (Waters, Milford, MA, USA); mobile phase: (A) water (0.6% HAc, pH=2.5), (B) methanol. Gradient elutions: 20%- 40% B (0-48 min); 40% B (48-54 min); 40%-55% B (54-60 min); 55%-95% B (60-75 min); 95% B (75-85 min); 95%-20% B (85-90 min).Flow rate and wavelength were 0.7 mL/min and 283 nm at room temperature, respectively.Results Four kinds of flavonoids were identified as naringin, neohesperidin, naringenin, and hesperidin, synephrine was also identified in FA and FAI. Furthermore, the contents of them were determined individually.The results showed that the chemical constituents in FA and FAI were the same but the contents were different.Conclusion HPLC-ESI-MS method can be efficiently used to study FA and FAI.

ObjectiveTo analyze the transitional shifts between with different sets of cone-beam computed tomography (CBCT) and the planning CT for liver cancer patients,and calculate the margins from clinical target volume (CTV) to the planning target volume (PTV)with and without image guided radiotherapy (IGRT).MethodsFive liver cancer patients received radiotherapy after transcatheter arterial chemoembolization (TACE).The first CBCT images (CBCT1) were obtained with Elekta CBCT plus active breathing control (ABC) system before treatment.The second CBCT images (CBCT2 ) were obtained after correcting the set-up errors and the third CBCT images ( CBCT3 ) were obtained after treatment.The CBCT images were registered and matched with the planning CT images using lipiodol as a direct surrogate for target localization.The PTV margins were calculated by comparing the shift between planning CT and CBCT according to formula M =2.5 ( Σ doctor2 + Σ set-up2 + Σ transter2 )1/2.Paired t-test was used to compare the differences between the results from CBCT1,CBCT2 and CBCT3. Results The average transition shifts in the left-right ( LR),superior-inferior (SI) and anterior-posterior (AP) directions were 0.254,-0.612,0.314 cm between planning CT and CBCT1 ;were 0.020,0.014,-0.064 cm between planning CT and CBCT2 ;and they were -0.004,0.042,-0.040 cm between planning CT and CBCT3.The PTV margins were LR 0.96 cm,SI 0.96 cm and AP 0.83 cm without IGRT,and LR 0.67 cm,SI 0.68 cm and AP 0.58 cm with IGRT.ConclusionsThe PTV margins can be reduced by 3 mm with IGRT for liver cancer using lipiodol as a direct surrogate for target localization.

BACKGROUND: Due to individual characteristics of human body, it is difficult to well match between standard prosthesis and patient skeleton. Computer-assisted design and manufacture of individualized prosthesis can effectively prolong artificial joint lifespan and quality and reduce revision rate. However, related studies are few in China.OBJECTIVE: To explore computer-assisted design for individualized femoral head prosthesis according to three-dimensional (3D)reconstruction of CT images for improving prosthesis and affected skeleton matching.METHODS: The CT scanning image of one healthy male volunteer, with no hip joint disease, was used. His femur was scanned with GE Speed Light CT with 3.0 mm thick cross-section slices. CT 2D images were transmitted to a computer. The medical image format was translated from DICOM into bmp. Inner and external bone contours were drawn automatically or by hand and processed digitally, and then these data were downloaded into 3D Mimics8.1, and Rapidform2004 software. The 3D femoral canal model was rendered. Femur canal contours curve was downloaded into the Solidworks2004 software in the form of dxf. Femoral prosthesis was designed on the base of femoral canal contours curve.RESULTS AND CONCLUSION: The CT image was transmitted in the form of vector by a set of self-made medical image processing software. The accurate 3D femoral internal/external outline model was obtained by CT 2D image and reverse technique. Suitable femoral prosthesis was designed by means of image reverse engineering and norientation CAD. Reverse engineering and CAD provide an effective way to develop individualized prosthesis, improve the matching of prosthesis and affected skeleton, prevent prosthesis loosening and improve long-term stability.

Objective To analyze the research status of childhood unintentional injury and provide a foundation for the development of targeted intervention strategies. Methods Bibliometrics were used to analyze 429 literatures of childhood unintentional injury published during 2000~2011. Results The quantity of research literatures didn't form a stable growth. The object, type and location of childhood unintentional injury were non- specific. The research contents mainly involved epidemiological characteristics, affecting factors and prevention methods, but overall designs of research had flaws. Conclusion The research should be carried out targeted and systematically.