Background Retinal ischemia/reperfusion injury is a common pathological process in ophthalmology.It can cause permanent visual impairment.The prevention and treatment of retinal ischemia/reperfusion injury is one of the focus topics at home and abroad up to now.Objective Present study was to evaluate the protective effects of geranylgeranylacetone(GGA)on retinal ischemia/reperfusion injury.Methods The retinal ischemia/reperfusion models were established in 40 SD rats by the infusion of normal saline solution into the anterior ehamber to elevate the intraoeular pressure for 1 hour and then remove the process.GGA of 2 ml (800 ms/kg)was intragastrieally administered in 20 model rats as GGA group,and the equal volume of normal saline solution was used at the same way in other 20 models as model group.Four normal matched SD rats were served as normal control group.The histological changes of retina in 6,24,48,72 hours after modeling was examined by hematoxylin-eosin staining under the light microscope.and the expression of heat shock protein 70(HSP70)and caspase-3 in retina at the time points mentioned above was detected by immunohistochemistry.Results The edema of cornea and retina of rats appeared in 1 hour and peaked in 24 hours after modeling.In 72 hours after modeling,the edema was alleviated but the disorder of retina structure was found in model group.However,although the pathological change process was similar to that of model group,the damage of retina tissue was milder in the rats of GGA group under the light microscope.HSP70 and caspase-3 were absent in the retina of normal rats.But。The expression of HSP70 in retinal ganglion cells(RGCs)was found in 6 hours after modeling,reached peak in 24 hours and declined after that in model group.The numbers of positive cells for HSP70 in retina was significantly increased in various time points in GGA group,showing statistically significant differences between model group and GGA group(P<0.05).In model group,a few of caspase-3 positive cells were found 6 hours after reperfusion and increased gradually until reaching the peak 24 hours and then decreased gradually 48 hours later.Few caspase-3 positive cells were found 72 hour8 after reperfusion.The numbers of positive cells for caspase-3 decreased in GGA group compared with model group during the experimental duration with the considerable difference between these two groups(P<0.05).Conclusion GGA could protect RGCs against isehemia/reperfusion injury by upregulating the expression of HSP70 and downregulating the expression of caspase-3 in retina.

[Objeetive] To compare the expression level of CD44V6,?-catenin in osteosarcoma cells with controls,and to investigate the correlation with invasion of osteosarcoma cells.[Methods]Expression of CD44V6 and ?-catenin was examined by immunohistochemistry SP method in 35 specimens of human osteosarcoma tissue.The control group was 15 samples of normal bone tissue and 15 samples of osteochondroma.[Results]The expression of CD44V6 and ?-catenin was correlated significantly with clinical stage,neoplasm metastasis(P0.05).In osteosarcoma,CD44V6 was positively correlated with the expression of ?-catenin(u=3.77,P

Animals ; Cochlea ; metabolism ; Environmental Exposure ; adverse effects ; Hearing Loss, Noise-Induced ; metabolism ; Humans ; Noise ; adverse effects ; Oxidative Stress ; physiology ; Reactive Oxygen Species ; metabolism

6 were higher than O_2/kg. Conclusion Comparing with single index of pulmonary function, the cardiopulmonary scores can more comprehensively evaluate the thoractomy candidates, for patients receiving pneumonectomy or the patients receiving lobectomy whose FEV_ 1.0 was lower than 60%.

Arthritis, Juvenile ; classification ; diagnosis ; therapy ; Child ; Female ; Follow-Up Studies ; Humans ; Male ; Prognosis

HLA-G belongs to non-classical HLA-class Ⅰ genes.It is expressed in the fetal-maternal interface on the extravillous cytotrophoblast and in such immune privilege tissues as the cornea and pancreas.However, under pathological conditions, such as tumor, inflammatory diseases and post transplantation, HLA-G is expressed abnormally.HLA-G can interact with its acceptors or immune cells and suppress the function of immune cells, which facilitates the escape of the surveillance of the human immune system and the consequent damage.In clinical studies,HLA-G is related to some clinical parameters.This review will focus on the expression, function and regulatory mechanisms of HLA-G in cancer immunology.

Objective:to observe the differential expression of adiponectin in different Chinese medicine syndrome of central obesity and its correlation with obesity character.Methods:To establish xu and shi syndrome of central obesity groups,with normal group as control.The metabolic symptoms and adiponectin expression will be tested and be used to study their correlation with obesity character.Results:The level of adiponectin,ratio of VA/SA,and fast insulin(FIns),HOMA-IR had signifi cantly difference between the xu and shi groups(P

OBJECTIVE To determine the value of acidic electrolyzed oxidizing water (EOW) for disinfecting endoscopes in the children's hospitals. METHODS The detection methods of field sampling were used for monitoring the effect of EOW disinfection. Washed after-use endoscopes were disinfected by EOW for 3-5min. Bacteriological tests on samples of pre-and post-disinfection made for 30 samples of laryngoscopes,30 examples of gastroscopes and 16 samples of enteroscopes,which were selected randomly. RESULTS Through EOW disinfection,the bacteria were not found on the laryngoscopes. The total number of bacteria on digestive endoscopes was conformed to the Standards of Disinfection Techniques and no pathogenic bacteria were detected. CONCLUSIONS Applying EOW to disinfection of endoscopes for clinical purpose can fulfill the State Standards completely. EOW has strongly germicidal activity,also with characteristic aslo act rapidly,securely and environment friendly,and without any irritant odor. These rusults indicate a widely potential use of EOW as in children's hospitals,especially,with a positive significance in health care of pediatric patients.

Objective To evaluate CT and MRI features of brain lesions in CO poisoning and to compare the ability of detecting rate of lesions by CT and MRI.Methods CT and MRI appearances in 52 cases with CO poisoning were analysed and compared.Results Necroses and degenerations of globus pallidus in 9 cases,cerebral white matter demyelination in 3 cases and brain atrophy in 3 cases were showed by CT.The detecting rate was 28.8% by CT while,necroses and degeneration of glodus pallidus were observed in 24 cases and white matter change in 7 cases were observed by MRI,the detecting rate was 59.6% which was higher than that of CT (?