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Objective:To evaluate the role of aryl hydrocarbon receptor (AhR) in the down-regulation of Clara cell secretory protein (CCSP) expression during endotoxin-induced lung injury in rats.Methods:Twenty-four clean-grade healthy male Sprague-Dawley rats, aged 8 weeks, weighing 200-250 g, were divided into 4 groups ( n=6 each) using a random number table method: normal control group (group C), acute lung injury (ALI) group, ALI+ AhR antagonist group, and ALI+ vehicle group. Lipopolysaccharide(LPS) 1 mg/kg was intratracheally instilled to develop the model of lung injury, while the equal volume of normal saline was given instead in group C. At 2 h before LPS injection, AhR antagonist 6, 2′, 4′-trimethoxyflavone solution 5 mg/kg (diluted to 1 ml in dimethyl sulfoxide solution) was intraperitoneally injected in ALI+ AhR antagonist group, while dimethyl sulfoxide solution 1 ml was given in ALI+ vehicle group. The rats were sacrificed under anesthesia at 48 h after LPS administration. The left lung was lavaged and the broncho-alveolar lavage fluid (BALF) was collected for determination of the concentrations of CCSP by enzyme-linked immunosorbent assay, and the expression of CCSP in the bronchial epithelium in right lung tissues was determined by immunohistochemistry. Results:Compared with group C, the expression of CCSP in the bronchial epithelium was significantly down-regulated, and the concentrations of CCSP in BALF were decreased in the other three groups ( P<0.05 or 0.01). Compared with ALI group and ALI+ vehicle group, the histopathological injury was significantly reduced, the expression of CCSP in the bronchial epithelium was up-regulated, and the concentrations of CCSP in BALF were increased in ALI+ AhR antagonist group ( P<0.01). Conclusions:AhR partially mediates the down-regulation of CCSP expression during endotoxin-induced lung injury in rats.
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Objective:To analyze the changes in plasma endothelin-1 (ET-1) concentrations in the patients with acute respiratory distress syndrome (ARDS).Methods:Fourteen patients with ARDS induced by trauma, 8 males and 6 females, aged 19-80 yr, were studied. The severity of ARDS was graded according to the Berlin definition of ARDS after admission to intensive care unit (ICU). Venous blood samples were obtained on 1st, 3rd and 5th days after admission to ICU, the plasma ET-1 concentrations were measured by radioimmunoassay, the pulmonary vascular permeability index (PVPI) was determined by PiCCO technique, and multiple organ dysfunction (MOD) score and lung injury score (LIS) were assessed. Spearman correlation of plasma ET-1 concentrations with MOD score, LIS and PVPI was analyzed.Results:MOD score, LIS, PVPI and plasma ET-1 concentrations were significantly decreased in mild ARDS patients ( n=5) as compared with moderate ARDS patients ( n=9, P<0.05). The plasma ET-1 concentration was positively correlated with MOD score, LIS and PVPI ( r=0.69, 0.76, 0.62, P<0.001). Conclusions:Plasma ET-1 concentrations can reflect the pulmonary vascular permeability and even the severity of the disease in the early stage of ARDS, so it is necessary to carry out dynamic monitoring in the patients.
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Cholangiocarcinoma is a malignant tumor originating from the bile duct epithelium, with the increasing incidence year by year. Its early symptoms are atypical and the diagnosis rate is low. Most of the patients are already in advanced stage when they are diagnosed, losing the best surgery period. Currently, the conservative treatments for unresectable extrahepatic cholangiocarcinoma include stent placement, radiofrequency ablation, radiotherapy and chemotherapy, targeted and immunotherapy and other systemic treatments. But due to the high malignancy of biliary tract tumors, the tendency to develop drug resistance and the limited population benefited from the emerging treatment modalities, we urgently need to explore new treatment strategies to break this bottleneck. As a new treatment for cholangiocarcinoma, photodynamic therapy has attracted much attention for its clinical application and therapeutic effects. In this paper, we summarize the principles of photodynamic therapy, the combination of photodynamic and other therapeutic modalities, especially the combination of photodynamic with emerging immune and targeted therapies, and describe the current hotspot directions of photodynamic therapy research at home and abroad to provide reference for clinical treatment and research.
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Objective@#To explore the intervention effect of improved nursing measures in the treatment of patients with dystonia with deep brain stimulation in MRI localization.@*Methods@#Twenty patients with dystonia treated with deep brain stimulation from January 2013 to December 2015 were selected as the control group. Twenty patients with dystonia treated by deep brain stimulation surgery with improved nursing from January 2016 to December 2018 were in the experimental group. The primary success rate of MRI localization, examination time related indexes and incidence of adverse reactions after intravenous anesthesia were observed in the 2 groups.@*Results@#The primary success rate of MRI localization in the experimental group (95.00%,19/20) was higher than that in the control group (55.00%,11/20), and the difference was statistically significant (χ2=8.533, P<0.01).The total examination time of the experimental group (33.60±8.27) min was significantly shorter than that of the control group (44.30±13.43) min, and the difference was statistically significant (t=-3.663, P<0.05).The incidence of total adverse reactions to MRI localization after intravenous anesthesia was lower in the experimental group (5%, 1/20) than in the control group (30%, 6/20), and the difference was statistically significant (χ2 =4.329, P < 0.05).@*Conclusions@#Improved nursing measures can effectively improve the success rate of MRI stereotactic brain target location in patients with dystonia, providing a guarantee for accurate calculation of surgical targets, enabling the operation to achieve the best results, early detection of changes in vital signs during examination, and the close cooperation of the medical team is the guarantee for the smooth completion of MRI examination.
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Objective To explore the intervention effect of improved nursing measures in the treatment of patients with dystonia with deep brain stimulation in MRI localization. Methods Twenty patients with dystonia treated with deep brain stimulation from January 2013 to December 2015 were selected as the control group. Twenty patients with dystonia treated by deep brain stimulation surgery with improved nursing from January 2016 to December 2018 were in the experimental group. The primary success rate of MRI localization, examination time related indexes and incidence of adverse reactions after intravenous anesthesia were observed in the 2 groups. Results The primary success rate of MRI localization in the experimental group (95.00%,19/20) was higher than that in the control group (55.00%, 11/20), and the difference was statistically significant (χ2=8.533, P<0.01).The total examination time of the experimental group (33.60±8.27) min was significantly shorter than that of the control group (44.30±13.43) min, and the difference was statistically significant (t=-3.663, P<0.05).The incidence of total adverse reactions to MRI localization after intravenous anesthesia was lower in the experimental group (5%, 1/20) than in the control group (30%, 6/20), and the difference was statistically significant (χ2=4.329, P<0.05). Conclusions Improved nursing measures can effectively improve the success rate of MRI stereotactic brain target location in patients with dystonia, providing a guarantee for accurate calculation of surgical targets, enabling the operation to achieve the best results, early detection of changes in vital signs during examination, and the close cooperation of the medical team is the guarantee for the smooth completion of MRI examination.
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Objective To investigate the differences in expression profile of long non-coding RNA (lncRNA) in retina between normal newborn mice and those with oxygen-induced retinopathy (OIR) to lay a foundation for further study of regulatory mechanisms of lncRNA in retinal neovascularization, and to provide a new theoretical basis for the prevention and treatment of retinopathy of prematurity (ROP). Methods A total of 48 cleaning grade C57BL/6J neonatal mice were randomly divided into two groups with 24 in each: OIR group and control group. Those in the OIR group were exposed to hyperoxia [(75±2)％ O2] from 7th to 12th day after birth, and then re-exposed to normoxia (room air) for five days to establish a OIR mouse model. Mice in the control group were raised in room air all the time. Retinal tissues were collected from each mouse on the 17th day after birth. Retinal angiography and hematoxylin-eosin (HE) staining were performed to confirm the establishment of OIR mouse model. Expression profiles of lncRNAs were analyzed by lncRNA high-throughput sequencing and the results were verified by real-time fluorescence quantitative polymerase chain reaction (PCR). Based on the expression of lncRNAs and mRNA and the relationship between their genomic locations, potential target genes of lncRNAs were obtained. Gene ontology analysis (GO) and Kyoto Encyclopedia of Genes and Gnomes (KEGG) pathway analysis were used for bioinformatics analysis of lncRNA expression profile in OIR. T test and Graphpad prism were used for statistical analysis and spreadsheet. Results Retinal angiography and HE staining identified serious retinal damage in the OIR group. In total, 1118 differentially expressed lncRNAs ( ≥ 2.0-fold difference in expression, P<0.05) relating to OIR between the two groups were identified by lncRNA high-throughput sequencing. Results of real-time fluorescence quantitative PCR confirmed that XLOC_150632 and XLOC_150636 were upregulated in the OIR group as compared with those in the control, while XLOC_122045,XLOC_100454, XLOC_170009 and XLOC_122042 were downregulated. GO analysis showed that 852, 1148 and 2100 target genes of differentially expressed lncRNAs were relating to biological process, cellular component and molecular function, respectively. KEGG analysis showed that the target genes were associated with 36 biological pathways, mainly relating to retinal development, chemotaxis, migration and energy metabolism of vascular endothelial cells. Conclusions lncRNAs are differentially expressed in healthy newborn mice and newborn mice with OIR. Fibroblast growth factor 2 (FGF2), the potential target gene of XLOC_150632 and XLOC_150636, is related to phosphatidylinositol-3-kinase (PI3K) signaling pathway and may be involved in retinal neovascularization. This might be a potential target for ROP prevention and treatment.
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Objective To express and purify the glycoprotein extracellular domain (Ex-GP) of Rabies virus strain CTN in soluble form with high efficiency.Methods A recombinant expression plasmid containing the gene encoding the Ex-GP was constructed.Various expression conditions were screened to obtain an optimum prokaryotic expression system for Ex-GP in soluble form.The expressed target protein was purified using affinity chromatography and gel filtration chromatography.Results The target protein Ex-GP with high antigenicity was efficiently expressed in soluble form by using the recombinant PBCX expression system and effectively purified by using affinity and gel filtration chromatography.Conclusion The soluble form of Ex-GP is successfully expressed and purified in a simple and convenient way.This study paves the way for further researches on the biological functions of rabies virus glycoprotein,the pathogenic mechanism of rabies and the development of diagnostic reagent and vaccines for rabies virus.
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Innate immune cells have a critical role in defense against infections and diseases.Central to this is the broad specificity with which they can detect pathogen-associated patterns and danger-associated patterns via the pattern recognition receptors (PRRs) they express.TLR is one of the most largely studied families of PRRs.Activation of TLR promotes both innate inflammatory responses and the induction of adaptive immunity.Given the characteristics of TLR,various Toll like receptor agonists are used in vaccine design to accelerate the immune response and produce long-lasting protection.
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Objective@#To investigate the effect of nicorandil on ventricular arrhythmia in patients with acute ST-segment elevation myocardial infarction (STEMI) treated with emergent percutaneous coronary intervention (PCI).@*Methods@#A total of 120 acute STEMI patients treated with emergent PCI in our hospital from January 2015 to June 2016 were randomly divided into control group and experiment group (n=60 each). Patients in both groups received conventional therapy.Patients in experiment group took 10 mg nicorandil orally before PCI and received oral nicorandil treatment (15 mg/d, three times daily) for 3 days.QT disperse(QTd), correct QTd(QTcd) and the occurrence rate of ventricular arrhythmia were compared between two groups.@*Results@#QTd at 6, 24, 48 and 72 hours((70.6±4.4), (67.2±5.3), (55.7±8.5), (48.2±8.2) ms, respectively) after PCI was significantly lower in the experiment group than those of control group ((77.1±7.1), (71.3±6.5), (65.1±8.1), (57.2±5.4) ms, all P<0.05). The level of QTd was also significantly lower in the experiment group at 6, 24, 48 and 72 hours((77.5±7.7), (67.7±8.6), (61.2±7.5), (52.9±8.4) ms, respectively) after PCI comared to those of control group ((88.6±8.1), (79.2±7.8), (74.4±7.4), (69.6±8.6) ms, all P<0.05). There was no significant difference in the incidence of reperfusion arrhythmia during PCI procedure between the two groups.The prevalence of the ventricular premature beat in the experiment group (25/60, 41.7%) was significantly lower than in the control group(45/60, 75.0%) within 3 days after PCI(P<0.01), the prevalence of the no sustained ventricular tachycardia and ventricular fibrillation in the experiment group(6/60, 10.0%) was also significantly lower than in the control group (18/60, 30.0%, P<0.01) within 3 days after PCI.@*Conclusions@#Nicorandil use prior and post PCI could decrease the occurrence rate of ventricular arrhythmia in STEMI patients undergoing emergent PCI, and this effect might be related with reduced QTd and QTcd post medication.
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Radial-cephalic arteriovenous fistula (RCAVF) is considered the first choice for hemodialysis vascular access because of its high patency rate and less complications.But up to 50％ of the fistula can not mature.This is mainly due to persistent low blood flow or difficulty in cannulation can not lead to adequate hemodialysis.Inflow or outflow stenosis,anastomotic stenosis,exceedingly deep location of the vein,flow diversion into accessory veins are the common causes of impaired maturation.In addition,thrombosis is a common of stenosis.Preoperative assessment by physical examination and ultrasound examination of blood vessels,select the appropriate blood vessels for the fistula is of great significance.Choose the appropriate treatment for the cause of maturation disorders.Postoperative aspirin is widely used to prevent thrombosis and reduce the occurrence of stenosis;Surgery has the advantage of bypassing the damaged area but creating a new stoma;in recent years,endovascular technique because of its characteristics of minimally invasive in most of the time is the first choice.In this paper,the definition,etiology,diagnosis and treatment of fistula maturation disorder are reviewed.
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Objective To observe the changes of subfoveal choroidal thickness (SFCT) in diabetic patients with non-proliferative diabetic retinopathy (NPDR) and clinically significant macular edema(CSME),and then investigate diabetic SFCT and the relationship of diabetic CT with diabetic retinopathy (DR).Methods The patients were divided into 2 groups according to clinical guidelines of DR in China in 2014,including NPDR CSME + group(21 eyes) and NPDR CSME-group(36 eyes).All patients were underwent best corrected visual acuity (BCVA),intraocular pressure,axial length,slit lamp microscope,indirect ophthalmoscope,EDI-OCT examination,and mean arterial blood pressure measurement.The differences of BCVA,central retinal thickness (CRT) and SFCT between NPDR CSME + group and NPDR CSME-group were studied as well by means of using SPSS 18.0 for data statistics.Results There was no significant difference in gender,age,eye axis and intraocular pressure between NPDR CSME + group and NPDR CSME-group (all P ＞ 0.05).There was significant difference in BCVA between the two groups (P =0.001).The mean SFCT were (328.24 ± 101.92) μm in the NPDR CSME + group and (235.31 ± 66.98) μm in the NPDR CSME-group,and the difference was statistically significant (t =4.156,P=0.000).And plotting changes in CRT against changes in SFCT in patients with CSME revealed a positive correlation(r =0.473,P =0.000).Conclusion SFCT in NPDR CSME + patient is thicker than that in NPDR CSME-patient.And plotting changes in CRT against changes in SFCT in patients with CSME reveals a positive correlation.
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Background Intraocular neovascularization is a primary cause of visual reduce in proliferative diabetic retinopathy (PDR) , and intravitreal injection of ranibizumab is one of treating approachs.Researching the mechanism of intravitreal injection of ranibizumab for PDR is a new target for the prevention and management of PDR.Objective This study was to determine the levels of vascular endothelial growth factor (VEGF) and pigment epithelium-derived factor (PEDF) in aqueous humor of PDR eyes before and after intravitreai injection of ranibizumab.Methods Self-controlled observational study was designed.Fifteen eyes of 15 PDR patients with type 2 diabetes mellitus were included in Fuzhou General Hospital of Nanjing Military Command from January to August 2014, and 1 eye combined with neovascular glaucoma and iris rubeosis.Aqueous samples of 0.1 ml at each time were collected before and 7 days after the injection of ranibizumab from all patients under the informed consent.The changes of aqueous VEGF and PEDF concentrations were detected and analyzed by enzyme-linked immunosorbent assay.This study complied with Declaration of Helsinki and the protocol was approved by this hospital.Results The freeVEGF concentrations before and 7 days after intravitreal injection were (179.4±136.5) pg/ml and (27.1 ±23.5) pg/ml, respectively, showing a significant reduce after intravitreal injection of ranibizumab (t =4.172, P =0.001).PEDF concentrations before and 7 days after intravitreal injection were (394.0-±237.2) pg/ml and (267.7±199.6) pg/ml, respectively, showing a significant reduce after intravitreal injection of ranibizumab (t =5.443, P =0.000).Intraocular neovascularization vanished after intravitreal injection of ranibizumab and vitrectomy was carried out at the seventh day after intravitreal injection.Conclusions Free VEGF and PEDF levels in aqueous humor appear to be significantly decreased after intravitreal injection of ranibizumab, and ocular neovascularization disappears at same time,which avoids intraoperative bleeding during vitrectomy.
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Objective To prepare a neutralizing monoclonal antibody against rabies virus. Meth-ods BALB/c mice were immunized with the inactivated rabies virus CTN strains on day 0, 7, 14 and 28. Spleen cell samples were collected and then fused with SP2/0 cells to prepare the hybridoma cell line. Posi-tive hybridoma cells that were screened out with RFFIT technique were injected into BALB/c mice intraper-itoneally. Ascites samples were collected from the mice to separate neutralizing monoclonal antibodies. Affin-ity chromatography was used for the purification of neutralizing monoclonal antibodies. Subtype identification and sequencing analysis were performed for further identification. A colloidal gold strip based method for rap-id detection of rabies vaccine was established with the prepared monoclonal antibodies. Results The hybri-doma cell line, CTN-McAb1, was prepared successfully with stable secretion of neutralizing monoclonal anti-bodies against rabies virus. The purity of those antibodies was more than 95% after purification and the sub-type of them was IgG1. The colloidal gold strip for raid detection of rabies vaccine was successful prepared. Conclusion The neutralizing monoclonal antibody against rabies virus was successfully prepared and could be used for preliminary application. This study will be of great significance for the quality control of rabies vaccine.
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Objective: To investigate the relationship between blood lipid proifles and intraocular pressure (IOP) in adult subjects. Methods: A total of 1660 adult subjects received regular physical examination in our hospital from 2015-01 to 2015-09 were enrolled. The subjects were divided into 2 groups: Hyperlipidemia group,n=356 and Non-hyperlipidemia group,n=1304. Systolic, diastolic blood pressure (SBP), (DBP), IOP and serum levels of total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), apolipoprotein A1(ApoA1) and apolipoprotein B (ApoB) levels were measured in all subjects. SPSS19.0 software was used to study the relationship between blood lipid proifles and IOP by univariate and multivariate liner regression analysis respectively. Results: Univariate regression analysis revealed that IOP was positively related to SBP, DBP, TC, TG, LDL-C and ApoB, all P<0.05, while negatively related to HDL-C,P=0.028. Multivariate regression analysis indicated that with adjusted age, SBP and DBP, IOP was positively related to TC, TG, LDL-C, ApoA1 and ApoB, while negatively related to HDL-C, allP<0.05. ApoB level in either Hyperlipidemia group or Non-hyperlipidemia group was signiifcantly related to IOP in both male and female genders,P<0.05. Conclusion: ApoB level was most obviously related to IOP and it might be used as a predictor for IOP elevation in clinical research, while its validity should be further studied.
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Objective To observe the effect of preoperative intravitreal ranibizumab injection (IVR) on the operation duration of vitrectomy and postoperative vision for the treatment of proliferative diabetic retinopathy (PDR).Methods A prospective study was carried out with the 90 PDR patients (90 eyes) who underwent vitrectomy.The 90 patients(90 eyes)were assigned to the vitrectomy only group(43 eyes) and the IVR combined with vitrectomy group (47 eyes).The IVR was performed 5-13 days prior to vitrectomy in the IVR combined with vitrectomy group.There were 15 eyes with fibrous proliferation PDR (FPDR),16 eyes with advanced PDR (APDR) without involving the macular and 16 eyes with APDR involving the macular in the vitrectomy only group.There were 14 eyes with FPDR,15 eyes with APDR without involving the macular and 14 eyes with APDR involving the macular patients in the IVR combined with vitrectomy group.All the eyes in the two groups were regularly operated by the same doctor to complete the vitrectomy.The start and end time of vitrectomy were recorded.The average follow-up time was 10 months.The changes of best corrected visual acuity (BCVA) before and 1,3 and 6 months after surgery were compared between the two groups.Results The duration of operation of the FPDR type (t=-8.300) and the APDR involving the macular type (t=-2.418) in the IVR combined with vitrectomy group was shorter than vitrectomy only group (P＜0.05).The comparison of duration of operation of the APDR without involving the macular type in the two groups has no statistically significant difference (t=-1.685,P＞0.05).At 1 month after surgery,the comparison of BCVA of the IVR combined vitrectomy group and the vitrectomy only group in APDR involving the macular type has no statistically significant difference (t=0.126,P＞0.05).At 3,6 months after surgery,the BCVA of the IVR combined vitrectomy group in APDR involving the macular type was significantly better than the BCVA of the vitrectomy only group (t=8.014,7.808;P＜0.05).At 1,3,and 6 months after surgery,the BCVA of the IVR combined vitrectomy group in FPDR type (t=3.809,1.831,0.600) and APDR without involving the macular type (t=0.003,1.092,3.931) compared with pre-treatment,the difference were not statistically significant (P＞0.05);the BCVA in APDR without involving the macular type compared with pre-treatment,the difference was distinctly statistically significant (t=2.940,4.162,6.446;P＜0.05);the BCVA in APDR involving the macular type (t =0.953,1.682,1.835) compared with pre-treatment,the difference were not statistically significant (P＞0.05).Conclusion Preoperative IVR of PDR can shorten the operation duration and improve the BCVA of APDR involving the macular type.
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Objective To investigate the effect of Probucol combined with Enalapril-folic acid tablets on endothelial function in elderly patients with H-type hypertension.Methods A total of 180 elderly patients with H type hypertension were randomly divided into three groups (n =60,each):Group A (conventional treatment),Group B (conventional treatment + a tablet containing 10 mg enalapril and 0.8 mg Folic acid/day) and Group C (conventional treatment + 500 mg Protocol twice daily + a tablet containing 10 mg Enalapril and 0.8 mg folic acid/day).Plasma hemocyanin (Hcy) and asymmetric dimethylarginine (ADMA) levels and serum nitric oxide (NO) and endothelial NO synthase (eNOS) levels were measured before treatment,and 1 and 6 months after treatment.Results In Group A,plasma Hcy and ADMA levels and serum NO and eNOS levels had no significant differences before treatment versus 1 and 6 months after treatment (P＞0.05).Plasma Hcy and ADMA levels decreased and serum NO and eNOS levels increased in Group B 6 months after treatment,compared with those at pretreatment or 1 month after treatment,which were either lower or higher than those in Group A 6 months after treatment (all P＜0.05).Plasma Hcy and ADMA levels decreased and serum NO and eNOS levels increased in Group C 6 months after treatment,compared with those at pretreatment or 1 month after treatment,which were either lower or higher than those in Groups A and B 6 months after treatment (all P＜0.05).After adjustment for other risk factors,partial correlation analysis showed that plasma ADMA was positively correlated with plasma Hcy,while plasma ADMA and Hcy were negatively correlated with serum eNOS and NO (all P＜0.05).Conclusions Probucol in combination with Enalapril-folic acid tablets may be beneficial in improving endothelial function and mitigating the development of atherosclerosis.
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Objective:To investigate the effect and mechanisms of Phloroglucinol ( PG) on renal ische-mia and reperfusion injury (IRI).Methods:Forty-eight male Wistar rats were divided into 3 groups (16 rats per group):sham operated, saline-treated I/R (I/R), and PG-treated I/R (PG).I/R model:Af-ter removing the right kidney , renal I/R injury was induced by clamping the left renal artery for 45 min followed by reperfusion.The rats were administered with PG (30 mg/kg, intraperitoneally) or saline 15 min before renal ischemia .The blood and kidneys were harvested 6 and 24 h after reperfusion .Renal function and histologic changes of serum creatinine (SCr) and blood urea nitrogen(BUN)were assessed. Malondialdehyde (MDA),catalase (CAT),superoxide dismutase (SOD), and glutathione peroxidase (GSH-Px) were measured.Nuclear factor-kapa B ( NF-κB) and caspase-3 in the kidneys were also measured.Results:SCr and BUN were (103.9 ±10.4) μmol/L and (15.2 ±1.0) mmol/L in I/R group, and (81.8 ±13.4) μmol/L and (11.5 ±1.2) mmol/L in PG group 6 h after reperfusion .SCr and BUN were (154.9 ±12.1) μmol/L and (28.1 ±1.4) mmol/L in I/R group, and (103.8 ±5.9)μmol/L和(16.0 ±1.0) mmol/L in PG group 24 h after reperfusion.PG treatment significantly attenua-ted renal dysfunction and histologic damage caused by I /R injury(P<0.05).The I/R-induced elevation in kidney MDA level decreased , where as reduced kidney SOD ,CAT and GSH-Px were increased .What is more , the apoptotic tubular cells , the levels of active caspase-3 ,and active nuclear factor kappa B dra-matically decreased after PG treatment .Conclusion:PG protects murine kidney I/R injury by suppres-sing oxidative stress , inflammation , and cell apoptosis .
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Objective To analyze the concentrations of vascular endothelial growth factor (VEGF) and pigment epithelium-derived factor (PEDF) in aqueous humor of patients with proliferative diabetic retinopathy (PDR) before and after intravitreal injection of ranibizumab.Methods Twenty-five eyes of 20 PDR patients were collected as the PDR group.Twenty-five eyes of 21 senile cataract patients were collected as the control group.There were no statistical significance in gender (x2 =0.223), age (Z=-1.555) and intraocular pressure (Z=0.225) between the two groups (P＞0.05).Samples of aqueous humor (0.1 ml) were collected just before and 7 days after the injection of ranibizumab in PDR group.Samples of aqueous (0.1 ml) humor were collected just before cataract surgery in control group.The concentrations of VEGF and PEDF in the aqueous humor were measured by enzyme-linked immunosorbent assay.Results The VEGF and PEDF concentration in the aqueous humor were reduced significantly after intravitreal injection of ranibizumab in PDR group (Z=-4.072,-4.319;P＜0.05).The concentrations of VEGF and PEDF in the aqueous humor before intravitreal injection of ranibizumab in PDR group were significantly higher than the control group (Z=-5.228, 4.706;P＜0.05).The VEGF concentration in the aqueous humor after intravitreal injection of ranibizumab in PDR group were similar to control group (Z=-1.557,P＞ 0.05).However, the concentration of PEDF in the aqueous humor after intravitreal injection of ranibizumab in PDR group still higher than control group (Z=-2.475, P＜0.05).The ratio of VEGF/PEDF before and after intravitreal injection of ranibizumab was statistically different (Z=-2.058, P＜0.05), but was the same between PDR group and control group (Z=-0.456,-0.844;P＞0.05).The aqueous humor concentrations of VEGF and PEDF were not significantly correlated with each other, neither in PDR group (r=-0.195,-0.174;P＞0.05) nor in control group (r=-0.286, P＞0.05).Conclusions Aqueous humor concentrations of VEGF and PEDF are significantly elevated in eyes with PDR.Intravitreal injection of ranibizumab significantly decreased the VEGF and PEDF in the aqueous humor after 7 days.
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Objective To compare clinical efficacy of clobetasol propionate ointment and vitamin A acid cream in the treatment of skin papule type amyloidosis.Methods 100 cases of skin papule type amyloidosis were randomly divided into the observation group and control group,each had 50 patients.The control group was treated with Vitamin A acid cream while the observation group used clobetasol propionate ointment for treatment.Skin lesion area,infiltration,skin color,skin itching score as well as the cure rate and efficiency were compared after 4 weeks of treatment.Results The two groups' symptoms was improved,symptom scores was decreased gradually after treatment than before,the observation group's symptom scores at 1,2,3,4 weeks were (9.35 ± 1.88),(6.54 ±2.16),(4.08 ±1.32),(2.04 ± 0.95) points which was significant better than (10.86 ± 2.08),(7.98 ± 2.57),(6.25 ± 1.44),(4.56 ± 1.18) points of the control group,the difference of two groups was statistically significant (t =6.22,6.71,7.30,7.41,all P ＜ 0.05) ;4 weeks after treatment,the observation group's efficience and cure rates were 94％ and 34％,significantly higher than 70％ and 22％ of the control group,the difference was statistically significant (x2 =9.040,8.391,all P ＜ 0.05).Conclusion Clobetasol propionate ointment has a exact effect in treatment of skinpapule type amyloidosis than vitamin A acid cream,which is worthy of clinical application.
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Objective To explore the curative effect of the treatment for minor-size tissue defect of forefoot by pedicle fibular side flap of the hallux.Methods The data of 12 patients with minor-size tissue defect of forefoot was retrospectively analyzed who were repaired with fibular side flap of the hallux from September 2003 to June 2012.There were 9 males and 3 females,with an average of 27 years (range,19-55 years).Among them,4 injured on the left,8 on the right side; 3 on the dorsal side and 9 on the plantar.There were 4 cases of traumatic wound,4 of tumor,2 of ulcer,and 2 of scar.Sizes of tissue defect were 1.3 cm×0.5 cm-2.5 cm×2.0 cm,the minimal flap size was 1.5 cm×0.8 cm,and the maximal flap size was 3.0 cm×1.5 cm.All flaps were elevated with fibular side artery and nerve of the hallux,and with width less than 1.5 cm,so wound of donor site could be sutured directly.The postoperative curative effect was assessed from five respects including flap healing,the sensation of the flaps,the flap appearance,the scar and weight-bearing walking.Results This kind of flap all survived successfully in the 12 cases,with satisfying cosmetic effect and sensory,without skin necrosis and blood vessel crisis.Nine patients were followed up for 3-96 months (average,12 months).The flaps were covered with soft and intact normal colored skin,no abrasion or wearing out happened and no subsequent reshaping was needed in the last follow-up.The minor-sized donor site wound could be sutured up directly.Since donor site was selected from non-weight-bearing area,walking and weight-bearing function of the patients were nearly unaffected at all.Sensory of the flaps were normal,with two-point discrimination ranging between 4-10 mm.Conclusion Due to the advantages of thinness,nerve nourishing,constant anatomical position and hidden position of donor site,anterograde fibular side flap of the hallux can be an ideal choice in repairing minor-size tissue defect of forefoot.