Objective To investigate the effect of N-methyl-N-nitrosourea (MNU) on expressions of interphotoreceptor retinoid-binding protein (IRBP) and recoverin in rat retinal.Methods Thirty female Sprague-Dawley (SD) rats were randomly divided into five groups,including normal control group,and MNU treatment one day,three days,seven days and 10 days groups,each group had six rats.Rats in MNU-treatment groups received a single intraperitoneal injection of 40 mg /kg MNU,while rats in the normal control group received intraperitoneal injection of saline 5 ml/kg.Reverse transcription-polymerase chain reaction (RT-PCR) and immunofluorescence were used to detect the retinal expression of IRBP and recoverin.Results RT-PCR results indicated that retinal IRBP levels decreased after MNU injection compared with normal control (P＜0.01),while recoverin levels increased (one day:P＞0.05; three days:P＜0.05; seven days:P＜0.5; 10 days:P＜0.05).Immunofluorescence assays demonstrated that normally IRBP protein is mainly in the inner and outer segments of photoreceptors.After MNU treatment,IRBP protein was detected in all retinal layers but much faint.Recoverin was expressed in the inner nuclear layer,inner plexiform layer and ganglion cell layer,and its expression was increased after MNU injection.Conclusion MNU suppresses IRBP expression and promotes recoverin expression in rat retina.

Objective To investigate the in-vitro transdermal permeability of cyclovirobuxine D ethosomes.Methods Ethosomes,liposomes,saturated aqueous solution and 35.5% saturated alcohol solution of cyclovirobuxine D were prepared.The in-vitro transdermal permeability of different kinds of preparations of cyclovirobuxine D was studied by in-vitro permeation experiments.Results Cyclovirobuxine D ethosomes enhanced transdermal flux rate of cyclovirobuxine D and the enhancement ratio was 8.85,superior to liposomes and saturate alcohol.The dermatic hold-up amount of cyclovirobuxine D in 35.5% saturated alcohol solution,liposomes and ethosomes was in a decreasing sequence.Conclusion Compared with the liposomes,the ethosomes can enhance the transdermal flux rate of cyclovirobuxine D,which could increase the systematic action of the drug.

Objective To investigate the changes and clinical significance of calcitonin gene related peptide (CGRP) and interleu-kin 1α(IL-1α) before and after warm acupuncture therapy in the patients with lumbar disc herniation (LDH ) .Methods Serum CGRP and IL-1αcontents were detected before and after the warm acupuncture therapy in 60 cases of lumbar disc herniation and 15 healthy control cases by ELISA method for conducting the statistical analysis .The changes of the McGill pain scores and serum CGRP and IL-1αconcentrations before and after the warm acupuncture therapy were observed .Results The McGill pain scores af-ter the warm acupuncture therapy in the LDH patients were significantly decreased ,the difference was statistically significant (P<0 .01) ,and serum CGRP and IL-1α concentrations were significantly decreased ,the difference was statistically significant (P<0 .01) .Conclusion CGRP and IL-1αcan be used as the observation index of the effects for the warm acupuncture therapy in trea-ting LDH ,which can provide the basis for the conservative treatment of LDH .

Objective To explore the effect of single blood perfusion combined with blood perfusion combined with continuous venous venous blood filtration (sequential blood purification) on myocardial injury in patients with severe acute organophosphorus pesticide poisoning.MethodsRetrospectively analyzed in July 2013 to July 2015 treated in our hospital see a doctor and a total of 94 patients with severe acute organophosphorus pesticide poisoning, depending on the patient's blood purification scheme, divided the patients into blood perfusion group (n=48) and sequential blood purification group (n=46), contrast after treatment on two groups of clinical curative effect, the condition of myocardial spectrum index and its complications.ResultsAfter treatment, blood perfusion group of left ventricular ejection fraction was (53.8±5.8)%, sequential left ventricular ejection fraction after blood purification treatment group was (58.1±3.4)%, both have obvious difference, has statistics meaning (P<0.05).In terms of myocardial enzyme spectrum index, and sequential blood purification group is obviously better than the index of myocardial enzymes in patients with blood perfusion group (P<0.05).The incidence of complications in patients with sequential blood purification group were lower than the blood perfusion group (P<0.05).ConclusionThe joint continuity venous blood perfusion-blood purification scheme of vein hemofiltration treatment of patients with severe acute organophosphorus pesticide poisoning can significantly improve treatment effect.

BACKGROUND:The establishment of a standardized clinical liver transplantation specimen bank is the primary condition for scientific research in this field, which can help to provide a qualified sample resource platform for research. OBJECTIVE:To primarily establish biological specimen bank of hepatocelular carcinoma for liver transplantation, to explore the standardized procedures of specimen colection, processing and preservation of hepatocelular carcinoma for liver transplantation, and to establish the sound and comprehensive information management system of clinical information of colected specimens. METHODS: In accordance with standardized procedures to establish biological specimen banks, the operational processes and quality control system were formulated. Liver tissue and blood samples of hepatocelular carcinoma recipients undergoing liver transplantation were regularly colected, managed and stored. Simultaneously, liver tissue and blood samples of benign liver disease in liver transplant recipients and of healthy donor were colected as controls. A systematic management was conducted in colected specimens and corresponding clinical information. RESULTS AND CONCLUSION:From August 2009, tissue and blood samples of 501 cases of receipts and donors undergoing liver transplantation with complete clinical information were colected from the specimen bank, including 203 hepatocelular carcinoma specimens, 214 benign liver disease specimens and 84 healthy donor specimens. These specimens included tumor tissue, adjacent tissues and distal non-cancerous tissue specimens, totaly 1 773. A total of 45 specimens were randomly selected for quality monitoring. The colected specimens had a high quality. Specimen information data computer management system was developed. This study initialy established a standardized research-based clinical transplantation specimen bank, which is helpful to elevate sample quality and has a good manipuility.

Objective To investigate the clinical pathological features and imaging findings of primary pulmonary sarcomatoid carcinoma. Methods Fifteen patients with a pathologically verified primary pulmonary sarcomatoid carcinoma were reviewed retrospectively. Fourteen patients had CT examinations and I0 of them had contrast-enhanced CT scan. Nine patients had chest plain films. Results Of 15 patients, 14 were peripheral and 1 was central, diameters ranging from 2.5 cm to 9.5 cm. Five located in the upper, 3 in the middle and 4 in the lower lobe of the right lung. The other 3 located in the upper left lobe. All cases presented with a spheroid solid lung mass on chest plain film and CT examinations. Three had irregular eccentric cavities. Six were well demarcated, 2 were ill defined, 4 were lobulated and 3 were speculated. The central case had obstructive pneumonia and showed ill defined. Ten showed irregular peripheral heterogeneous contrast enhancement. The center part of the tumor showed no enhancement or inhomogeneous enhancement. Seven had thoracic wall or pleural invasion, 4 had hilar or mediastinal lymphopathy and 2 had metastasis. Histopathologically, 8 were pleomorphic carcinoma, 2 were spindle cell carcinoma, 3 were giant cell carcinoma and 3 were pulmonary blastomas. Conclusion The X-ray and CT findings of the primary pulmonary sarcomatoid carcinoma are not specific. The clinicopathologic features were the evidence of diagnosis.

Embolization, Therapeutic ; Humans ; Hypertension, Portal ; therapy ; Portasystemic Shunt, Surgical

Objective To observe the effects of tacrolimus on blood glucose, insulin, expressions of protein phos-phatase 2A and P-AKT in rats in order to explore the mechanism of hyperglycemic action of tacrolimus. Methods Sixty male SD rats (body weight 89. 83 ±4. 44 g) were randomly divided into tacrolimus group (n =40) and control group (n=20). The rats in the tacrolimus group were administrated with tacrolimus 4 mg/kg daily. The rats in the control group were given the same amount of normal drinking water daily. The rat body weight, fasting blood glucose concentration and blood concentration of tacrolimus were measured monthly. All rats were killed at 5 months after the tacrolimus administra-tion. The serum insulin levels were detected by radioimmunoassay method. The expressions of PP2A and P-AKT in liver tissues were assessed by immunohistochemistry. Results After two months of administration, the blood glucose levels in the tacrolimus group were significantly higher than those in the control group. The HOMA-IR in tacrolimus group was signif- icantly higher than that in the control group P<0. 05 ) . ISI was significantly lower than that in the control group ( P<0. 05). Immunohistochemical examination showed that the expression of PP2A in hepatocytes in the tacrolimus group was increased compared with the control group, while expression of P-AKT in hepatocytes of the tacrolimus group was decreased than that in the control group. Conclusions Tacrolimus can induce necrosis of islet cells, decrease of the amount of islet cells and insulin secretion, decease of sensitivity to insulin, and increase the resistance to insulin, therefore, leading to in-crease the blood glucose level in rats. The expression of PP2A in hepatocytes in the tacrolimus group is increased, while the expression of P-AKT is decreased. Interfering of insulin signal transduction pathways may be involved in the hyperglyce-mic effects of tacrolimus.

Objective To evaluate the diagnostic value of myeloperoxidase (MPO)in diagnosis of non-ST elevation acute cor-onary syndromes (NSTE ACS).Methods The MPO was determined in 61 unstable angina pectoris (UAP)patients and 54 non-ST-elevation myocardial infarction (NSTE MI)patients,then analyzed the data with receiver operationg characteristic curve (ROC curve)statistical software.The major adverse cardiac events (MACE)were obseved in 106 NSTE ACS patients through 1 year of follow-up.Results The MPO values of NSTE MI group and UAP group were 672±418 ng/ml and 459± 328 ng/ml,the difference was statistically significant (t=3.928,P <0.001).The cTnI values were 558±261 pg/ml and 405 ±278 pg/ml of respectively.The difference was statistically significant (t = 3.089,P = 0.003).The area under the ROC curve of MPO was 0.726 when the optimal cutoff value was 382 ng/ml in the diagnosis of NSTE MI.The sensitivity and specificity was 92.6% and 39.8%.The area under the ROC curve of cTnI was 0.799 when the optimal cutoff value was 484 ng/ml in the diagnosis of NSTE MI.The sensitivity and specificity was 65.5% and 92.3%.High MPO maintained a strong association with the risk of major adverse cardiac events through 1 year of follow-up.Conclussion MPO is ahigh sensitivity marker of the NSTE MI and of clinical value for prognosis of NSTE ACS.

Objective To evaluate the prognosis value of heart‐type fatty‐acid binding protein(H‐FABP)and myeloperoxidase (MPO) in non‐ST elevation acute coronary syndromes(NSTE ACS) .Methods 181 NSTE ACS patients were divided into 4 groups according to the level of H‐FABP and MPO ,and the baselines of 4 groups such as gender ,age ,hypertension ,smoking ,body mass in‐dex ,diabetes mellitus ,hyperlipidemia were compared .The incidences of adverse cardiac events in 4 groups were compared after a 2 years′follow‐up .Results By multivariate COX regression adjustment for other risk factors ,the relative risk(RR) of H‐FABP for adverse cardiac events was 2 .023(95% CI:1 .029 -3 .987 ,P=0 .002) ,and MPO was (95% CI:2 .196 -5 .325 ,P< 0 .05) .The 2 years′follow‐up showed the incidence of adverse cardiac events in NSTE ACS patients with higher H‐FABP and MPO levels was higher than the NSTE ACS patients with one or two indicators of normal levels .Conclusion The combined application of H‐FABP and MPO could has clinical significance for the prognosis of patients with NSTE ACS .