ObjectiveBased on a new method for animal model evaluation， this study aims to analyze the characteristics of diseases and syndromes of existing animal models of attention deficit hyperactivity disorder （ADHD） from both traditional Chinese medicine （TCM） and western medical perspectives and propose suggestions for improvement. MethodsA systematic search of the China National Knowledge Infrastructure （CNKI） and PubMed was conducted for literature on ADHD animal models. According to TCM and western medical diagnostic criteria， core and accompanying symptoms of the models were assigned with scores to comprehensively evaluate the clinical consistency. ResultsThe selection of experimental animals for ADHD models primarily involved rodents， with modeling methods including genetic， chemical induction， and environmental induction. The average consistency of clinical diseases and syndromes with TCM and western medicine was 45.19% and 49.42%， respectively. The spontaneously hypertensive （SHR） rats and nicotine/smoking models had the highest consistency with TCM， while the social isolation models had the highest consistency with western medicine. Most models were guided by western medicine theories， which can meet the surface validity and structural validity requirements of western medicine but lacked precise differentiation of TCM syndromes. ConclusionExisting ADHD animal models primarily focus on a single genotype or environmental factor， lacking comprehensive consideration of multigenic interactions and environmental factors. Moreover， the selection of model evaluation indicators is relatively singular， primarily focusing on "disease" indicators， while TCM "syndrome" indicators have not been fully considered. It is recommended to introduce a "formula-to-syndrome" approach in the preparation of TCM models for ADHD and establish and improve an evaluation system of animal models combining diseases and syndromes， so as to provide a solid foundation for future experimental research.

ObjectiveBased on a new method for animal model evaluation， this study aims to analyze the characteristics of diseases and syndromes of existing animal models of attention deficit hyperactivity disorder （ADHD） from both traditional Chinese medicine （TCM） and western medical perspectives and propose suggestions for improvement. MethodsA systematic search of the China National Knowledge Infrastructure （CNKI） and PubMed was conducted for literature on ADHD animal models. According to TCM and western medical diagnostic criteria， core and accompanying symptoms of the models were assigned with scores to comprehensively evaluate the clinical consistency. ResultsThe selection of experimental animals for ADHD models primarily involved rodents， with modeling methods including genetic， chemical induction， and environmental induction. The average consistency of clinical diseases and syndromes with TCM and western medicine was 45.19% and 49.42%， respectively. The spontaneously hypertensive （SHR） rats and nicotine/smoking models had the highest consistency with TCM， while the social isolation models had the highest consistency with western medicine. Most models were guided by western medicine theories， which can meet the surface validity and structural validity requirements of western medicine but lacked precise differentiation of TCM syndromes. ConclusionExisting ADHD animal models primarily focus on a single genotype or environmental factor， lacking comprehensive consideration of multigenic interactions and environmental factors. Moreover， the selection of model evaluation indicators is relatively singular， primarily focusing on "disease" indicators， while TCM "syndrome" indicators have not been fully considered. It is recommended to introduce a "formula-to-syndrome" approach in the preparation of TCM models for ADHD and establish and improve an evaluation system of animal models combining diseases and syndromes， so as to provide a solid foundation for future experimental research.

Objective To study the clinical use of indocyanine green (ICG) fluorescence imaging in laparoscopic liver surgery.Methods The clinical and pathological data of 68 patients who underwent laparoscopic hepatectomy using the ICG fluorescence imaging technique during the study period from September 2016 to October 2018 in Zhongnan Hospital,Wuhan University were retrospectively analyzed.Analysis was carried out on the surgical methods,fluorescence navigation methods,ICG injection time and dose,tumor characteristics,and pathological studies of the resected specimens.Results Of 68 patients,3 patients were converted to open surgery,and the remaining 65 patients completed the ICG fluorescence laparoscopic hepatectomy.Thirty-two of these 65 patients underwent ICG fluorescent guided laparoscopic anatomical resection of lower hepatic segment / hepatic hemilivers (positive staining in 17 patients,negative staining in 15 patients),with 19 patients successfully staining with ICG(19 / 32,59.4％).Postoperative histopathology showed primary hepatic solid tumors (n=31),secondary liver tumors (n=12),hepatic cysts (n=4),hepatic hemangiomas (n =5),hepatolithiasis (n =12) and hepatic focal nodular hyperplasia (n =1).These lesions were combined with hepatitis B liver fibrosis in 29 patients.Conclusions ICG fluorescence imaging positively impacted on laparoscopic liver surgery.Proper preoperative ICG injection was helpful for the identification,localization and intraoperative surgical guidance of tumors,especially for patients with deep-seated and central tumors.As a consequence,oncological and surgical safety of laparoscopic liver surgery was improved.Targeted visualization of liver segments and surgical navigation using intraoperative ICG injections facilitated accurate and precise resection of anatomical liver segments or hemi-hepatectomies.The use of intraoperative ICG fluorescence technology for hepatic hemangioma,hepatic cyst,intrahepatic bile duct stones and other benign liver lesions,helped to improve safety of surgery.

BACKGROUND: Myogenetic seed cells are the fundamental for construction of tissue-engineered smooth muscle, and optimizing the amplification of seed cells is the key in further clinical application. OBJECTIVE: To analyze the myogenetic potential of rabbit adipose-derived stromal cells induced with the combination of MyoD, transforming growth factor β1 and 5-azacytidine, and to investigate a new way to induce cells. METHODS: The rabbit abdominal fats were isolated and then the adipose-derived stromal cells were separated by col agenase digestion method for myogenetic induction with different methods: 5-azacytidine induction group, MyoD+transforming growth factor β1 induction group, 5-azacytidine+MyoD+transforming growth factor β1 combination induction group. The blank control group was set. The morphological characteristics of cells were observed at 1, 4, 8, 12, 16, 20, 24 and 28 days after induction, and the col agen type Ⅲ level were detected with 4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, flow cytometry and immunohistochemistry. RESULTS AND CONCLUSION: Compared with the other groups, the cel activity was higher in the combination induction group and reached peak at 16 days after induction, the number and volume of myotubes were increased at 20 days with regular arrangement, and desmin showed strong expression. Cel cycle showed the ratio of adipose-derived stromal cells in the DNA replication phase was increased in the combination induction group, the ratio of cells in the clearance period was decreased; the level of col agen type Ⅲ was increased significantly, and the difference was significant. The results indicate that 5-azacytidine combined with multiple factors can promote the differentiation of adipose-derived stromal cells into myoblasts with significant cel proliferation, which is considered as the ideal method to in vitro induction of myoblasts.

Objective To study the effect of Coxsackie virus B3 (CVB3) infection on islet cells in vitro, and to explore the mechanism of islet cells caused by CVB3. Methods Bone marrow mesenchymal stem cells( BMSCs) were separated from the bone marrow and cultured. Then they were induced to differentiate into islet-like cells using nicotinamide and mercaptoethanol. Differentiated cells were detected by morphology , special staining and RT-PCR. Observe CVB3 infection on islet cells under inverse microscope and detect the specific gene fragment by RT-PCR. Results BMSCs showed half suspended shape and gathered to form a cluster after induction. Cells became red brown by dithizone specific staining. RT-PCR also proved the existence of mRNA expressing insulin. Infected islet cells appeared typical pathological changes like shrinks, refraction decreases. RT-PCR detected the desired specific gene fragment of 299 bp in infected islet cells. Conclusion CVB3 can directly injury islet cells, and damage the function of islet cells of secreting insulin.

As the progress of organ and tissue transplantation technology, pancreas and islet transplantation has been introduced to treat diabetes and became hot. However, many shortcomings and re-lated issues need to be improved concerning the islet cell sources. Bone marrow mesenchymal stem cells (BMSCs) has become the hot topic on induction of islet-like cell because it was simple to access, easy to culture and possess the function of immunosuppressian. In recent years, artificial construction of pancreatic islet cells, which uses gene recombinant and gene transfection to reforge islet-like cells, has improved the induction rate of BMSCs and increased the amount of insulin serection, and it also provide new ideas and direction for the treatment of diabetes.

Objective To investigate whether the defective interfering(DI) particles of Paramyxovirus, Tianjin strain could be used as a candidate adjuvant. Methods DI particles were separated and purified. After being identified, it was equally mixed with the inactivated poliovirus (PV) vaccine. Kunming mice were administered subcutaneously with the mixture, besides we set groups of inactivated PV vaccine containing Al(OH) 3 as an adjuvant, inactivated PV vaccine of which the dose was doubled without any adjuvant, and negative control. Sera were collected in the 14th day after immunization, and the specific antibodies of PV were detected. T/B lymphocyte stimulation indexes(SI) were counted through the lymphocyte proliferation tests. The quantities of IFN-γ/IL-4 produced by the splenocytes which were stimulated again by PV antigen were detected. Results The SI and the quantity of IFN-γof the mice in the group of inactivated PV vaccine combining with DI particles of Paramyxovirus, Tianjin strain were more than other groups. Conclusion DI particles of Paramyxovirus, Tianjin strain could enhance the immune response of inactivated poliovirus, especially the cellullar immunologic response of Th1 type.

Objective To develop a phenylketonuria (PKU) screening method based on a compact disk (CD) type microfluidic chip capable of generating reciprocating flow within the microchannels that facilitate rapid DNA hybridization. Methods This microfluidic device consists of a two-layer structure: a polydimethylsiloxane (PDMS) top layer containing 12 DNA hybridization microchannels, and a bottom glass layer with immobilized hydrogel conjugated DNA arrays. The DNA arrays included R243Q, V245V and the blank control probes. When the CD device was spun, the PCR products were driven into the hybridization channel by centrifugal force. When the rotation of the CD device was stopped, capillary force pulled the PCR products solution to flow back to the channel. After the on-chip hybridization, the hybridization signals were captured on a fluorescence microscope. The specificity, detection limitation and reproducibility of this device were evaluated. Thirty DNA samples from pregnant women with suspected PKU were detected by this device.Then the results were compared with DNA sequencing results. Results With the compact disk type microfluidic chip, the hybridization time could be reduced to 15 min, sample consume could be as low as 1. 5 μl and the detection limitation was 0. 7 ng/μl. With the chip based method, samples of PKU patients and healthy controls were detected and the results were consistent with DNA sequencing results. Five different batches of chips and five micro-channels of each chip were selected to test one PKU patients with V245V mutation. All the results were positive, indicating good reproducibility. Four cases of V245V mutation and 1 case of R243Q mutation were found in 30 suspected PKU carried pregnant women. Conclusion The compact disk microfluidic device has advantages of simple, rapid and highly sensitive, thus is well suited to PKU screening.

Objective To evaluate the biological potential of surface topography of biomimetic matrix combined PRP gels with RGD modification. Methods Surface topography of nβ-TCP/Cs/PCL matrix was made by Nd: YAG laser, tissue-engineered bone was constructed in the following ways: ADSCs were loaded to nβ-TCP/Cs/PCL matrix with PRP gels plus RGD modification (group A), ADSCs were cultured to nβ-TCP/Cs/PCL matrix with RGD modification (group B), ADSCs implantation with topography-surfaced treatment of matrix (group C), ADSCs cultivation with smooth-surfaced treatment of matrix (group D). SEM and CLM were used to observe cellular pattern, survival rate, cell activity, ALP and collagen type Ⅰ level were detected at 1, 4, 8, 12, 16, 20, 24,28 days. Runx2 and OPG expressions were assayed at different interval. Results Under observation of SEM and CLM, new tissue showed more remarkable cell proliferation with abundant ECM in group A. Compared with other groups, the survival rate in group A was significantly higher (88.16 ± 1.29, P ＜ 0.05),and the level of cell activity, ALP, collagen type Ⅰ were significantly higher (0.92± 0.13, 87.27 ± 3.08, 93.27 ± 3.91, P＜ 0.05), and remarkable expression of Runx2 and OPG was also seen. Conclusion Topography-surfaced treatment of matrix combined PRP gels with RGD modification enhances the cell proliferation and acts as a feasible osteopromotive method.

in vitro fertilization in future.