Objective To observe the expressions of microRNA-126 (miR-126) and vascular endothelial growth factor (VEGF) in gastric carcinoma tissues,and their associations with clinicopathologic features in gastric carcinoma.Methods Fifty cases of gastric carcinoma and matched tumor adjacent tissue specimens were collected from January 2012 to March 2014 in Shangqiu First People's Hospital of He' nan Province.Expression levels of miR-126 and VEGF were examined using reverse transcriptase-polymerase chain reaction.Their correlations and the relationships between them and the clinicopathologic features in gastric carcinoma were analyzed.Results The expression levels of miR-126 in the tumor tissues and in the adjacent tissues were 0.652 ± 0.102 and 0.379 ± 0.069,and the expression levels of VEGF in the two kinds of tissues were 1.523 ± 0.142 and 0.604 ± 0.152,with statistical differences (t =8.374,P =0.001;t =29.508,P =0.000).The expressions of miR-126 and VEGF were significantly positively correlated (r =0.735,P =0.001).The expressions of miR-126 and VEGF were associated with TNM stage (t =22.981,P =0.001;t =18.053,P =0.001),depth of tumor invasion (t =26.792,P =0.001;t =20.234,P =0.001) and tumor node metastasis (t=26.668,P=0.001;t=14.857,P=0.001).Conclusion miR-126 is high expressed in the gastric carcinoma tissue,which may up-regulate the expression of VEGF,and lead to the formation of new blood vessels,then to promote gastric carcinogenesis and the development process.

Objective To investigate the protective effect of mild hypothermia on cerebral ischemia-reperfusion injury in rats and the effect of mild hypothermia on the expression of inhibitor of differentiation 2 (Id2) protein.Methods A total of 72 adult male rats were randomly divided into a sham operation group,a normothermia group,and a mild hypothermia group.A model of middle cerebral artery occlusion was induced by a suture method.The mild hypothermia group was treated with low temperature (anal temperature 33±1 ℃,tympanic membrane temperature 31±1 ℃).Modified Neurological Severity Score (mNSS) was used to evaluate neurological deficits,triphenyltetrazolium chloride staining was used to detect infarct volume,and Western blot was used to detect the Id2 expression in the ischemic cortex at ischemia-reperfusion 6,12,24,and 72 h,respectively.ResultsThe mNSS scores in the mild hypothermia group were significantly lower than those in the normothermia group,the infarct volumes were significantly smaller than those in the normothermia group at ischemia-reperfusion 6,12,24,and 72 h (all P<0.001).Western blot analysis showed that the Id2 expressions in the ischemic cortex in the mild hypothermia group were significantly lower than those in the normothermia group at ischemia-reperfusion 6,12,24,and 72 h (all P<0.05).Conclusion s Mild hypothermia can decrease neurological deficits and reduce infarct volume after cerebral ischemia-reperfusion,its mechanism may be associated with the down-regulation of the Id2 expression.

Objective To develop and test a stressor scale for in-patients with spinal cord injury (SSIPSCI). Methods Based on in-depth interviews and the second-level International Classification of Functioning, Disability, and Health (ICF) categories, a 39-item SSIPSCI was generated and pilot tested. It was then used with 284 inpatients with spinal cord injury. Principal components factor analysis and correlation analysis were performed.Results The exploratory components factor analysis revealed 7 significant stress factors: social activity, economy security, individual activity, relationship with others, physical disorders, bowel and bladder problems and medical fees. Internal consistency was high, with a Cronbach's alpha coefficient of 0. 950 overall and 0. 741 ～ 0. 920 for the individual factors. Test-retest reliability was 0.848. The correlation between SSIPSCI scores and Beck depression inventory (BDI) scores was strong ( r = 0. 665 ). Conclusions The reliability and validity of the SSIPSCI are both satisfactory enough to meet psychometric requirements.

ObjectiveTo study the characteristic findings on MRI in children surviving premature delivery with cerebral palsy.MethodsThe clinical data and MR imaging in 16 cases surviving premature delivery with cerebral palsy was retrospectively analyzed, compared with 16 healthy and age-matched controls.Results16 cases were final diagnosed as cerebral palsy with spstic diplegia. MRI features of children surviving premature delivery with cerebral palsy included abnormally high signal intensity in the periventricula white matter on T2WI, marked loss of periventricular deep white matter, ventriculomegaly with or without irregular ventricular outline and atrophy of the corpus callossum. These features were consistent with periventricular leukomalacia(PVL).ConclusionPVL was the characteristic findings on MRI in children surviving premature delivery with cerebral palsy. The characteristic findings of PVL was useful in determining the etiology and type of cerebral palsy in children.

Objective To study the characteristic findings on magnetic resonance imaging (MRI) in children with cerebral palsy (CP) induced by chronic kernicterus.Methods The MR imagings in 13 CP cases induced by chronic kernicterus were retrospectively studied, which were compared with 6 healthy and age-matched controls. 13 cases were finally diagnosed as dyskinetic cerebral palsy (athetoid subtype).Results In 13 cases, all showed symmetric high signals in the the globus pallidus on T2-weighted imaging. There were not apparent abnormality on T1-weighted imaging.Conclusion The bilateral high intensity signals in the globus pallidus on T2-weighted imaging are the characteristic findings on MRI in CP children induced by chronic kernicterus. Paying attention to the globus pallidus on MRI may be useful in determining the type of cerebral palsy.

This paper is to establish a three-dimensional finite element model (3D-FEM) of pelvic floor levator ani muscles in an old healthy women. We acquired the image data of the pelvic bones and pelvic floor muscles from CT and MRI scanning in a non-pregnant old healthy female volunteers. The 3-D reconstruction and mesh optimization of the whole pelvic bones and muscles with application of image processing software Mimics12.0 and Geomagic9.0 were obtained. Then we built the 3D-FEM of the musculoskeletal system of the pelvic bones and levator ani muscles with Ansys11.0 software. We obtained an accurate 3D-FEM of pelvic bones and levator ani muscles in the older healthy woman. The results showed that it was reliable to build 3D-FEM with CT and MRI scanning data and this model could vividly reflect the huge space anatomy of the real pelvic floor levator ani muscles. It avoids the defects to gain the model from the body of anatomical specimens in the past. The image data of model are closer to vivisection, and the model is more conducive to the latter finite element analysis.
Female ; Finite Element Analysis ; Humans ; Imaging, Three-Dimensional ; Magnetic Resonance Imaging ; Middle Aged ; Muscle, Skeletal ; anatomy & histology ; diagnostic imaging ; Pelvic Floor ; anatomy & histology ; diagnostic imaging ; Tomography, X-Ray Computed ; methods

Objective To explore the significance of expressions of glutamate transporters and γ-aminobutyric acid transporters in the rat model with cerebral ischemia.Methods The detections of the expressions of glutamate transporter-1 (EAAC-1) and γ-aminobutyric acid transporter-1 (GAT-1) in models with ischemia in vivo and hypoxia in vitro were performed by immunofluorescence,Westen-blot and real-time polymerase chain reaction (RT-PCR) methods.Results The expression of EAAC1 was reduced in the cerebrum of focal cerebral ischemic MACO rat model as well as in primary neurons cultured under hypoxia.The expression of GAT1 was elevated.Conclusion EAAC1 expression decreases while GAT1 expression increases under condition of cerebral ischemia and anoxia.

Objective To explore the significance of expressions of glutamate transporters and γ-aminobutyric acid transporters in the rat model with cerebral ischemia.Methods The detections of the expressions of glutamate transporter-1 (EAAC-1) and γ-aminobutyric acid transporter-1 (GAT-1) in models with ischemia in vivo and hypoxia in vitro were performed by immunofluorescence,Westen-blot and real-time polymerase chain reaction (RT-PCR) methods.Results The expression of EAAC1 was reduced in the cerebrum of focal cerebral ischemic MACO rat model as well as in primary neurons cultured under hypoxia.The expression of GAT1 was elevated.Conclusion EAAC1 expression decreases while GAT1 expression increases under condition of cerebral ischemia and anoxia.

Objective:To comprehensively evaluate the high-quality development of some tertiary public hospitals in C city, and explore the high-quality development path of municipal public hospitals, so as to provide a basis for the formulation of relevant policies.Methods:Based on the relevant policy documents of the evaluation indicators for the high-quality development of public hospitals, and around the four dimensions of medical quality, economic efficiency, sustainable development and satisfaction, the entropy weight TOPSIS-RSR method was adopted to comprehensively evaluate the high-quality development of some tertiary public hospitals in C city in 2019 and 2020. It included all five municipal comprehensive tertiary public hospitals in C city, and included one provincial and two county-level tertiary public hospitals for comparative study.Results:In 2019 and 2020, the number of medical cooperation, the surplus of income and expenditure, and the entropy weight of scientific research project funding per 100 health technicians were large, which were the key indicators to evaluate the high-quality development of public hospitals, with the values of 0.096 and 0.109, 0.119 and 0.141, 0.123 and 0.124, respectively. According to the best classification principle, the provincial, municipal and county-level public hospitals in C city could be divided into three levels of " good" , " medium" and " poor" , and the development gap between these levels was large.Conclusions:The development of municipal public hospitals in C city has achieved remarkable results, but there are still such problems as uneven distribution of medical resources, insufficient motivation for talent training, relatively lagging discipline construction, and insufficient advantages and characteristics. In this regard, we should further optimize the allocation of medical resources, improve the operation and management system, clarify the social functions of public hospitals, and scientifically allocate core resources.

Ophthalmic drug-device combination products are a new method of ophthalmic disease treatment,which is characterized by high bioavailability,strong targeting and good compliance.However,it is difficult for products to be developed and regulated due to the complexity of the human eye structure,drug-device interactions,and other factors.To provide a basis for guaranteeing the safety and efficacy of products development and management,the related regulations,current research,and evaluation of the quality of products are summarized in this paper.