Along with the development of computer technologies and digitization of human body's information, the digital human entered into a new stage of modelling physical features from the stage of reconstructing anatomical structures. By summarizing domestic and abroad relevant documents, we in this paper present the general scheme of digital human and the location of physical human as well as its conception and applied value. We especially analyze the modeling process of physical human, core technologies and its research and applications in four main fields: electromagnetic radiation, ultrasound propagation, bioimpedance measurements and biomechanical analysis. We also analyze and summarize existing problems of present physical human model and point out the future development trends of physical human.
Biomechanical Phenomena ; Electric Impedance ; Electromagnetic Phenomena ; Humans ; Models, Anatomic ; Software ; Ultrasonics

Objective To evaluate the therapeutic efficiency and side effect of concurrent radiotherapy and weekly chemotherapy with low-dose eisplatin(DDP) and 5-fluorouracil(5-FU) for advanced cervical canc-er. Methods 73 patients with advanced cervical cancer were randomized into two groups: 37 cases in the chemo-radiotherapy group received radiotherapy combined with DDP 40 mg and 5-FU 500 mg weekly for 6-7 weeks. 36 cases in the only radiotherapy group received radiotherapy alone. Radiotherapy was given with conven-tional fraction,the total tumor dose was 50 Gy. Results The rate of overall response and three-year survival and local recurrenc and distant metastasis for the chemo-radiotherapy group and the only radiotherapy group were 97.30%, 89. 19%, 8. 11% and 10. 81%, and those for the only radiotherapy group were 77.78%,66. 67% ,30.56% and 33.33%. The difference of the four groups was statistically significant ( P <0. 05). The rate of bone marrow inhibition and reaction of digestive tract in chemo-radiotherapy group were higher than those in simple radiotherapy group, but most reactions were grade 1 and grade 2, without statistically significant dife-renee between two groups. Conclusion Concurrent radiotherapy and weekly chemotherapy with low-dose cis-platin and 5-fluorouracil for advanced cervical cancer can significantly improve local control rate and survival rate, and have slight side effects.

Objective To investigate the efficacy and the mechanism of different dose hepatitis B immunoglohulin(HBIG)on prevention of HBV intrauterine infection and HBV S gene mutation. Methods HBV carrier mothers were randomly divided into three groups.Eighty-one HBsAg carrier pregnant women were divided into HBIG A group.HBIG B group and control group.Each subject in the HBIG A group received 200 U or 400 U(for HBsAg and HBeAg double positive carrier)intra muscularly at 3,2,1 month before delivery.Each subject in the HBIG B group received 200 U intra muscularly at 3,2,1 month before delivery.The subjects in the control group did not receive any treatment.Maternal blood samples were taken before HBIG injection and at delivery.Neonatal blood samples of all newborn infants after birth were taken before immunopropbylaxis.Their sera were ob tained to test HBV markers by enzyme immunoassay(EIA)and HBV DNA by fluorescence quantita- tive polymerase chain reaction(FQ-PCR),then to amplify and sequence HBV S gene region.Results The rate of HBV intrauterine infection in the HBIG group(14.5%)was lower than that in the control group(35.7%)(X~2=4.896,P=0.027).The rate of HBV intrauterine infection of newborns from HBsAg and HBeAg double positive carrier mother in the HBIG A group(37.5%)were lower than control group(100.0%)(X~2=7.273,P=0.007),while the rate was no different in the HBIG B group(71.5%)and the control group(X~2=2.637,P=0.104).Maternal HBsAg titer and HBV DNA level were of no difference among three groups before HBIG injection.Maternal HBsAg titers and HBV DNA levels of the HBIG A group were lower than those of the HBIG B group and the con- trol group at delivery.Among the 26 neonatal serum samples in the HBIG A group,10(38.5%)were positive for anti-HBs,while in the HBIG B group and in the control group,no neonatal serum sam- ples was positive.There was no significant difference of nucleotide and amino acid changes in the S gene between the HBIG group and the control group.Conclusions HBV infection in the uterus may be interrupted by injection HBIG intramuscularly before delivery.More efficacy would be found using variable HBIG dose according to different HBV virema and must be once more again injected just he- fore one week of delivery;anti-HBs transported to the fetus via the placenta and it's may be the im- portant mechanism of HBIG prevention.Asymptomatic HBsAg carrier mother received injections of HBIG before delivery should not influence HBV S gene mutation.Gene mutation of HBV is not the main factor in intrauterine transmission of HBV.

In the 40 years of last centry American scientists put forward a concep of high intensity focused ultrasound (HIFU) therapeutic technique and had done some technical and clinical studies. Since 90 years the HIFU surgery technique treating tumors anew rised abruptly in the world. China firstly put out a comprehensive HIFU tumor treating sistem and successfully treated many solid tumors such as breast cancer, bone tumor, liver cancer etc.. Now the treating sistem has already exported to England, Italy,Spain, Japan, Colea etc. and treated tens thousands tumor patients. In the field of noninvasive ultrasound treating tumor technique China has continually kept the leading position in the world.

Aim To investigate the protective effects of Aplysin on ethanol-induced oxidative damage in rat pri-mary hepatocytes. Methods Rat primary hepatocytes were obtained via the portal vein collagenaseⅣin situ perfusion technique followed by a Percoll density gradi-ent centrifuge. MTT test was used to determine the op-timum dose of Aplysin and ethanol, and detect the cell vitality in primary hepatocytes. Supernatants of primary hepatocytes were harvested to measure AST and LDH level, and the SOD, GSH-PX activities and MDA con-tent in primary hepatocytes were observed. Flow cy-tometry was used to detect the cell apoptosis rate. DNA damage in primary hepatocytes was detected by single-cell gel electrophoresis assay. The level of mitochon-drial membrane potential in primary hepatocytes was tested by fluorogenic probe JC-1 . The CYP2 E1 activity in primary hepatocytes was detected by colorimetry. The proteins of CYP2 E1 were detected by Western blot. Results 300 mmol·L-1 dose of ethanol and 30 mg·L-1 dose of Aplysin were the optimal dosages and were used in the subsequent experiments. Hepatocyte vitality was significantly increased in Aplysin group compared to that in ethanol group, and Aplysin inhibi-ted the release of AST and LDH(P<0. 05). For Apl-ysin treatment group, the activities of hepatocyte SOD and GSH were significantly increased, and MDA was markedly lowered as compared with those in ethanol group( P <0. 05 ) . Aplysin could alleviate hepatocyte apoptosis significantly, and hepatocyte DNA damage rates of Ⅱ ~Ⅲ level and Ⅳ level were significantly lowered in Aplysin treatment group as compared with those in ethanol group, and Aplysin had evident im-provement in alcohol induced mitochondria damage of hepatocyte. Primary hepatocyte activities and protein expression of CYP2 E1 were markedly lowered in Aply-sin treatment group as compared with those in ethanol group(P<0. 05). Conclusion Aplysin has protective effects on liver oxidative damage induced by alcohol of primary cultured rat hepatocytes by blocking CYP2 E1 activation, relieving oxidative stress, and sharpening the oxidation resistance ability.

Animals ; Calcineurin ; metabolism ; Diet, High-Fat ; Dietary Fats ; administration & dosage ; Male ; Myocardium ; metabolism ; Physical Conditioning, Animal ; physiology ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Superoxides ; antagonists & inhibitors

Aim To study the effects of probucol on THP-1 macrophage apoptosis and CD36、Caveolin-1 expression induced by ox-LDL.Methods Apoptosis of THP-1 macrophages was determined by flow cytometry analysis.RT-PCR and immunofluorescence were used to detect CD36,Caveolin-1 mRNA level and protein expression respectively.Results Probucol had no effect on mRNA level of CD36,Caveolin-1 in THP-1 macrophages,but it attenuated Caveolin-1 protein expression.Conclusions Probucol can inhibit apoptosis induced by ox-LDL in THP-1 macrophages by down-regulating Caveolin-1 protein expression.

Taxillus chinensis,belonging to hemiparasitic herbal medicine and featuring its wild host range,is used for relief from rheumatic conditions,reinforcement of liver and kidney,strengthening of tendon and bone,and prevention of abortion.It showed that host trees presented significant impacts on the quality of Taxillus chinensis in the modern researches.In this study,both domestic and foreign published articles over Taxillus chinensis from various host trees were reviewed to summarized its herbalogy,chemical constituents,toxicity,and pharmacological action.In regard to the influences on the quality of medicinal materials,ideas and references for the quality control of Taxillus chinensis were provided by analyzing the quality of Taxillus chinensis impacted by hosts.

Objective To observe the effect of movement exercise combined with electroaeupuneture on the expression of Nestin in the hippocampus dentate gyrus (DG) after cerebral ischemia-repeffusion.Methods Fifty- four Wistar rats were used and randomly divided into a control group (Group A),an exercise training group (Group B),and an exercise training combined with electroacupuncture group (Group C).The middle cerebral arteries (MCA) of all the rats were occluded for 1 h,followed by reperfusion for 7,14 and 21 davs.Immunohistochemistry method was used to detect the expression of Nestin in the hippoeampus dentate gyrus.Results The number of Nes- tin-positive cells peaked in DG in all groups on the 7th day after cerebral isehemia-reperfusion.The number of Nes- tin-positive cells in DG ipsilateral to the ischemia-reperfusion lesion were significantly more than those in the opposite side at various time points (P

Objective To compare the efficacy of elective nodal prophylactic irradiation ( ENI) and involved?field irradiation ( IFI) in radical radiotherapy for early?stage esophageal cancer and to determine the appropriate irradiation range for early?stage esophageal cancer. Methods The clinical data of 121 patients with early?stage esophageal cancer receiving radical radiotherapy in our hospital from January 2006 to December 2011 were collected and respectively analyzed. Sixty?one patients received ENI, and the other 60 patients received IFI. The Kaplan?Meier method was used to calculate local control ( LC) and overall survival ( OS) rates;the log?rank test was used for survival difference analysis and univariate prognostic analysis;the Cox regression model was used for multivariate prognostic analysis. Results The 1?, 3?, and 5?year LC rates in ENI group and IFI group were 81. 1%, 60. 1%, and 57. 5% vs. 64. 5%, 43. 9%, and 27. 2%, respectively ( P=0. 003 ) . The 1?, 3?, and 5?year OS rates in ENI group and IFI group were 86. 9%, 56. 8%, and 34. 8% vs. 86. 7%, 34. 3%, and 19. 1%, respectively ( P=0. 019) . The 1?, 3?,and 5?year overall failure rates in ENI group and IFI group were 22. 3%, 53. 8%, and 63. 2% vs. 43. 3%, 65. 8%, and 78. 8%, respectively ( P=0. 023) . Multivariate analysis showed that irradiation range was the influencing factor for LC and OS. Conclusions As for the radical radiotherapy for early?stage esophageal cancer, ENI can significantly increase LC and reduce locoregional failure, and therefore improve long?term OS.