[Objective] To observe the influence of Red Sage and Propranolol on portal hypertension rats' pressure,liver fibrosis and gastric-intestinal hormone.[Method] At 4w after making models,rats take the said medicines,then measure their portal pressure with biological signal Medlab-Ug4Cs collection and treatment system;after decapitation,measure the indexes with radio-immune method.[Result] In model group(1),the portal pressure is much more increased than normal one(2),that in Red Sage treatment(3) and Propranolol(4) groups is much lowered,so are gastrin and glucagon;compared to group 1,the gastrin,motilin and glucagon in group 3 are much decreased,so are compared to group 4.[Conclusion] Red Sage can effectively reduce portal pressure,liver fibrosis index and regulate gastro-intestinal hormone,with cure effect better than propranolol.

Objective To observe the clinical effect of acupuncture combined with traditional Chinese medicine Tongluo huayu decoction on white matter damage in patients with occlusive cerebral infarction.MethodsA total of 76 patients with cerebral infarction with cerebral hemorrhage were enrolled in this study from April 2013 to January 2015.The random number table was divided into observation group and control group (38 cases).The control group was given routine western medicine treatment, the observation group on the basis of the control group plus traditional Chinese medicine tongluo huayu decoction, and with acupuncture treatment, the two groups were treated for 2 months, compare the effectiveness of treatment, analysis of the two groups before and after treatment platelet aggregation rate MAR (CDCA) and platelet-activated granule membrane glycoprotein 62P (CD62P), and the prognosis was analyzed by NIHSS, Montreal Metabolic Assessment Scale (MoCA) and Barthel Index (BI) Observe adverse reactions.ResultsThe effective rate of the observation group was 94.74% higher than that of the control group (78.95%, P< 0.05).After treatment, the expression of CD62P (21.87±1.55)%, MAR (35.23±1.62)% and NIHSS score (10.27±0.78) (P< 0.05).The incidence of adverse events was 13.16% in the observation group (25.04±1.11) and the BI index (88.15±1.20) were significantly higher than those in the control group (P< 0.05);There was no significant difference in the prevalence of adverse effects between 13.16% and 7.89%.ConclusionAcupuncture combined with traditional Chinese medicine Tongluo huayu decoction can effectively protect the white matter of patients with massive arterial occlusive cerebral infarction, improve its platelet CD62P, MAR and neurological function, cognitive function, improve the quality of life, and mild adverse reactions, it is worth in the clinical promotion application.

Hydatidosis is the largest parasific disase in human being. The patients often contract hydatidosis in the childhood. The slow growth of hydatid cysts in the organ involved may lead to a protracted course of disease. In the early stage of the diseases, there are no distinct subjecive symptoms. Early diagnosis is difficult by routine examination. The complications of hydatidosis causing serious damage to the organs may often lead to sudden death. It is essential to make an early and correct diagnosis and give treatment. B-mode ultrasonography not only detects the location, dimension and chracteristics of hydatid cysts but also shows the pathological changes of the various complications caused by hydatidosis and faciliates to select the best program of operation. B-mode ulttasonography is the method of choice in the diagnosis of hydatidosis. In this series of 931 patients with hepatic hydatid disease, the diagnostic accuracy rate of B-mode ultrasonography reached 98. 8%.

5#. The hybridoma cell lines grew well after continuous culture for more than three months or after being stored in liquid nitrogen for six months, and the titers of secreting McAbs were stable.Conclusion:The McAbs against respiratory syncytial virus are obtained. It lay a foundation for early diagnosis and further study of RSV.

Objective:To investigate the expression of Gli-2 protein and nuclear proliferation marker Ki-67 in human thymic tu-mors, as well as its relationship with clinicopathological features and prognosis. Methods: Immunohistochemical staining was per-formed to determine the expressions of Gli-2 and Ki-67 in 64 thymic tumor cases, in which 9 were type A, 6 were type AB, 11 were type B1, 22 were type B2, and 16 were type C. Results:1) Positive expression rates of Gli-2 in types A, AB, B1, B2, and C thymomas were 1/9 (11.11%), 2/6 (33.33%), 2/11 (18.18%), 5/22 (22.73%), and 13/16 (81.25%), respectively. Statistically significant differences existed in the two sets of data (P<0.05). Positive rates of Gli-2 in the Masaoka stages Ⅰ, Ⅱ, Ⅲ, and Ⅳ were 2/10 (20%), 12/41 (29.27%), 4/6 (66.67%), and 5/7 (71.43%), respectively. The statistical differences of these two sets of data were also significant (P<0.05). 2) The expression levels of Gli-2 in tumor tissues were closely correlated with the pleura (P<0.05) but not associated with gen-der, age, myasthenia gravis, and necrosis with hemorrhage (P>0.05). 3) The positive labeling indexes of Ki-67 in invasive and non-inva-sive thymomas were 7.14 ± 6.99 and 15.24 ± 9.13, respectively. The differences between both thymomas were statistically significant (P<0.05). 4) A positive correlation existed in the expression of Ki-67 and Gli-2 in thymomas. Five-year progression-free survival (PFS) rate was lower in the Gli-2 positive group (56.5%, 13/23) than in the negative group (92.7%, 38/41). The Ki-67-positive group (61.5%, 16/26) also showed a lower five-year PFS than that in the negative group (92.1%, 35/38), with statistically significant differences be-tween the two groups (P<0.05). Multivariate Cox's proportional hazard regression analysis indicated that the Gli-2-positive group ex-pression, Ki-67-positive group expression, and invasion of the pleura were independent prognostic factors of thymic tumors. Conclu-sion:The expression of Gli-2 and Ki-67 showed a positive correlation with thymic tumors. Detecting the combined expression of Gli-2 and Ki-67 may elucidate the clinicopathological features and prognoses of patients with thymic tumors.

Objective:To summarize the morphological characteristics and clinical experience of pulmonary artery sling(PAS) combined with anomalous bronchial branching, and provide new considerations for surgically treating PAS.Methods:A retrospective review of surgical experience of all patients with anomalous bronchial branching from January 2012 to December 2018 at Shanghai Children's Medical Center was conducted. There are 4 types according to the morphology of anomalous bronchial branching: tracheal bronchus, bronchial trifurcation, bridging bronchus, tracheal bronchus combined with bronchial trifurcation. The proportion of patients with anomalous bronchial branching combined with PAS was counted. The rate of tracheoplasty for four types was determined. We measured the interbronchial and subcarinal/subpseudocarinal angles before and after tracheoplasty.Results:140 patients were included in our study. The tracheal diameter of 11(21%, 11/53) patients with tracheal bronchus and 4(9%, 4/44) patients with bronchial trifurcation was normal. Among these patients, 125 patients had congenital tracheal stenosis(CTS). 115 patients underwent tracheoplasty. The rate of tracheoplasty of bridging bronchus was higher than tracheal bronchus(100% vs. 60%, P=0.000). One-stage surgery was performed in 76(61%) patients who had PAS. The interbronchial and subcarinal/subpseudocarinal angles were significantly reduced postoperatively( P=0.000). Conclusion:It is difficult to explain merely with vascular compression in patients with PAS with CTS and anomalous bronchial branching. One-stage slide tracheoplasty is currently the optimal option.

This paper built the mathematical model of a centrifugal blood pump, which was designed by ourselves, combined it with that of the human cardiovascular system and simulated the coupling system using Matlab. Then we set up the experiment platform, linked the blood pump to mock human cardiovascular system in case of three-stage heart failure, and measured aortic pressure and flow under different speed. The comparison between experiment results and simulation results not only indicates the coupling model is correct and the blood pump works well, but also shows that with the increase of blood pump speed, the pulsation of aortic pressure and flow will be reduced, this situation will affect the structure and function of blood vessels.
Cardiovascular System ; Heart-Assist Devices ; Hemodynamics ; Humans ; Models, Theoretical

The purpose of this paper is to report the research and design of control system of magnetic coupling centrifugal blood pump in our laboratory, and to briefly describe the structure of the magnetic coupling centrifugal blood pump and principles of the body circulation model. The performance of blood pump is not only related to materials and structure, but also depends on the control algorithm. We studied the algorithm about motor current double-loop control for brushless DC motor. In order to make the algorithm adjust parameter change in different situations, we used the self-tuning fuzzy PI control algorithm and gave the details about how to design fuzzy rules. We mainly used Matlab Simulink to simulate the motor control system to test the performance of algorithm, and briefly introduced how to implement these algorithms in hardware system. Finally, by building the platform and conducting experiments, we proved that self-tuning fuzzy PI control algorithm could greatly improve both dynamic and static performance of blood pump and make the motor speed and the blood pump flow stable and adjustable.
Algorithms ; Assisted Circulation ; instrumentation ; Fuzzy Logic ; Heart-Assist Devices ; Magnetic Phenomena ; Magnetics

Objective To investigate the safety and efficacy of autologous haematopoietic stem cell transplantation (HSCT) in treatment of patients with refractory inflammatory bowel disease (IBD). Methods Ten patients with active moderate-severe IBD [nine with Crohn's disease (CD) and one with ulcerative disease (UC)] were treated with HSCT from January 2004 to August 2006.Among 9 CD patients,the CD active inedx(CDAl) of 2 patients were above 450 (severe),6 patients were 150-450 (active).One patient was suffered from severe UC(whole colon).The stem cells were collected from the patients who intravenously received cycloptlosphamide (2.0 g/m2 ) and granulocyte colony-stimulating factor (5 μg · kg-1 · d-1 ).The CD34+ cells were isolated and cryo-preserved.After 2 weeks,the HSCT was carried out.Results In 9 patients with CD,clinical complete remission (CDAI<150) was achieved in 5 and 1 patients at 3 and 12 months after HSCT.The CDAI of other 2 patients decreased but not reached clinical complete remission.The patients were followed up of 16.1 months (ranged 10-33 months).The disease relapsed in 4 patients and complete remission in 5 patients.However,no improvement was observed under repeated eolonoscopy in 1 patient with UC who had not relapsed in 10 months.HSCT-related side effects included neutropenia caused fever,infection,etc.One HBV-carrier developed asymptomatie increase of liver enzymes and HBV-DNA copies after HSCT.Conclusions Autologous HSCT can be conducted safely and is well tolerated in patients with refractory IBD.It can induce clinical remission in most of the patients,although endoscopic remission may not be achieved,and relapses can not be avoided in some patients.