Objective　To study the ultrastructure of macular pucker (MP) from the patients with rhegmatogenous retinal detachment (RRD) and the mechanism associated with its development．　Methods　Twenty specimens of MP surgically removed by vitrectomy from 13 patients were dissected into two layers in each of them．The ultrastructure of two layers,i,e,near the vitreous and near the retina,was studied with electron microscopy．　Results　Seven sections of the near vitreous ones appeared prodominant collagen deposits and a few of epithelial-like cells,and pigment particles might be present in the cytoplasm．While cells with foot processes were found in 13 membrane sections near the retina and increasing number of various types of cells rich in collagen around were observed including fibroblast-like cells and glial cells．　Conclusion　The findings suggest that the MP after surgery of retinal detachment may possess a characteristic lamination,and posterior hyaloid cortex was involved in the developmetn of MP．The adhesion between posterior hyaloid cortex and macular area might be a key factor for forming MP．

Objective To investigate the ingestion, metabolism and subcellular localization of indocyanine green (ICG) in human retinal epithelial (RPE) cells. Methods RPE cells were incubated with 0.25 mg/ml ICG under the condition of 37℃ in the camera. The ICG granule and ultrastructure of RPE cells were observed under the electron microscopy after 1-, 4-, and 24-hour incubation, and the ICG autofluorescence was detected by fluorescence microscopy after the incubation for 1, 2, 4, 8, 12, 24, and 48 hours, respectively. The absorbency (A value) of ICG solution was measured at 805 nm with ultraviolet/visible specrtrometer. The standard curve of concentration of ICG was drawn and the related equation of concentration of ICG and the A value was calculated. After being incubated for 1, 2, 4, 8, 12, 24, 48, and 72 hours, respectively, the A value of supernatant fluid was calculated according to the equation. After incubated with ICG for 24 hours, one sample was observed under electron microscope and fluorescence microscope per week to evaluate the metabolizable period of ICG. Results ICG granules were distributed evenly after entering the RPE cells. After incubated with 0.25 mg/ml ICG for 24 hours, no significant change of the ultrastructure of the RPE cells was found. ICG granules accumulated in the cells as the time goes by and reached the peak after 24 hours, and then they decreased because of the slowdown of the metabolism. Few ICG was still remained in the cells 1 week later. Conclusions RPE cells may take in ICG actively. ICG metabolizable period in RPE cells is long, which may be one of the mechanisms of the toxicity of ICG to the retina in the vitreous operation.

Objective To determine the level of defensins(HNP_(1-3))and interleukin-8(IL-8)in colon tissue of patients with ulcerative colitis(UC)and to explore the relationship between HNP_(1-3)and IL-8 and the severity of disease.Methods The level of HNP_(1-3)and IL-8 in colon mucosa of UC patients was detected by immunohistochemistry method.Results The levels of HNP_(1-3)and IL-8 in colon mucosa of UC patients were much higher than that of normal controls.The expression of HNP_(1-3)and IL 8 of UC patients was higher in involved mueosa than in corresponding normal mucosa.The expression of HNP_(1-3) and IL-8 was related to the extent of lesion and the degree of disease.The expression of HNP_(1-3)was significantly correlated with that of IL-8(r_s＝0.957,P＜0.01).Conclusions The induction of HNP_(1-3) and IL-8 was involved in process of inflammation and development of UC.Regulating mechanisms of HNP_(1-3)expression might be related with the induction of IL-8.

Objective:To explore effect of relevant training on understanding of theory of naive biology for plant reproduction in 5- and 6-years old,and to attempt to provide demonstration for a debate of different views between domain universality and domain specificity cognitive development.Methods:48 preschoolers who did not comprehend concept of plant reproduction screened from 64 preschoolers ages 5 to 6 were surveyed by clinical method.Half of the 48 children were assigned to intervention group,the other to control group.The effects of intervention were compared by the experimental before-after design.Results:Relevant biological knowledge might widely accelerate 5- and 6-year-olds' understandings for plant reproduction,and 6-year-olds had more enhancement than 5-year-olds.Pass rates of intervention group were more 29.2% than control group in 5 year olds,and more 54.1% in 6 year olds.Conclusion:Acquiring specific knowledge will generally improve preschoolers' cognition on plant reproduction.Children' cognitive development is influenced jointly by both domain-specific and domain-general thinking.

Acupuncture Therapy ; Child, Preschool ; Female ; Hand, Foot and Mouth Disease ; complications ; Humans ; Infant ; Male ; Paraplegia ; etiology ; therapy

The construction of characteristic talent training program is crucial to strengthening the development of independent college.During the construction process,efforts should be made in the following aspects:the training aim being the inheritance of its matrix with the emphasis of application ; the curriculum system emphasizing skill training as well as improvement; the training model design making full use of resources with sufficient practice; the quality improvement highlighting regional characteristics and inheriting culture.Besides,special attention should be paid to understanding the government's relevant policies,to studying relevant theories about higher education and to grasping the generality of the education aimed at undergraduates and individuality of talents in independent college.

Objective To establish the weights of risk factors indicators for lower limbs deep vein thrombosis through the scientific research methods.Methods 21 experts were consulted for two rounds of questionnaires survey with Delphi method,according to the experts'opinion,analytic hierarchy process (AHP) was used to calculate the weights of indicators in grade one and the experts'evaluation was used to calculate the weights of indicators in grade two.Results The weight coefficients of grade one including vascular endothelial injury,blood high condensation state and slow blood stream were 0.3325,0.5278 and 0.1396 respectively.The items with maximal weights of the 21 indicators in grade two was vascular trauma,in particular vein injury(0.0770).The Kendall's W of the indicators in grade two was 0.422.Conclusions Through qualitative and quantitative research methods,the risk factors indicators which provide the reference for the prevention of lower limbs deep vein thrombosis are scientific and reliable.

Objective To explore the factors for the development of gallstones after gastrectomy. Methods 52 cases of patients with postgastrectumy,were retrospectively analyzed according to their diseases for gastrectomy and operation form. Results Incidence of gallstone in patients of postgastrectomy was higher than in general population. Among which, Billroth Ⅱ type of gastrectomy for carcinoma was the highest (35.5%), then the total gastrectomy (31.5%) and proximate gastrectomy(13.5%). Billroth Ⅰ type operation was 10.3%. Incidence of gallstone in pa-tients of selective vagotomy was lowest (2.5%). Condusion Billroth Ⅱ type of gastrectomy and total gastrectomy were the risk factors of postgastrectomy cholelithiasis. The causes for gallstone formation after Billroth Ⅱ type of gas-trectomy were the restitution of digestive canal and metabolic disorder of bile acid.

Objective To observe the application effect of layered cooperation teaching in clinical teaching in intensive care unit (ICU).Methods The master graduate students who practiced in ICU of Fangcun branch of Guangzhou Provincial Hospital of Traditional Chinese Medicine form September 2013 to July 2014 were divided into two groups according to the rotation cycle.Diagnostic test was conducted to all the above students.The new teaching group (21 people) was determined according to the diagnostic test results and students' majoring to frm study group and the layered cooperation teaching was adopted,while the traditional teaching was used in the traditional clinical education group (19 cases).In the end of the rotation training,a theoretical examination was conducted among the two groups of students,and the questionnaire of teachers' teaching quality was issued.The related data were processed by SPSS 17.0,and the data between groups were compared by t test.Results The examination result in the layered cooperation teaching group (78.35 ± 3.13) were better than those in the traditional clinical education group (70.21 ± 4.58) and the difference was statistically significant (P=0.041).Survey results showed that the new teaching group students' evaluation to teaching content,teaching methods and teaching effectiveness was higher than traditional teaching group,and the score difference was statistically significant (P＜0.05).Conclusion The layered cooperation teaching in the clinical teaching in intensive care unit (ICU) to mobilize the students' subjective initiative,so that students of different knowledge structure can be integrated into the clinical practice of ICU,and enhance their ability of clinical analysis of ICU disease.

AIM:To investigate the effect of calcitonin gene related peptide(CGRP)on the expression of cyclic AMP response element binding protein(CREB)and phosphorylated-CREB in rat parietal cortex during focal cerebral ischemia/reperfusion(I/R).METHODS:Focal cerebral ischemia/reperfusion model was induced by occlusion of the right middle cerebral artery using the intraluminal suture method.The expressions of CREB and phospho-CREB in the parietal cortex in different groups(sham group,focal cerebral ischemia/reperfusion group and CGRP group)were detected with immunohistochemistry and Western blotting,and the positive products were analyzed by image analysis system.RESULTS:There was definite expression of CREB in right parietal cortex in sham group,while it was lesser in I/R group than that in sham group,but it became more in CGRP group than that in I/R group(P