Objective To determine serum cytokine profiles and levels in patients with early diabetic retinopathy(DR)by using antibody array technology and analyze their clinical significances.Methods Among 32 patients with type 2 diabetes mellitus,16 patients with mild to moderate non-proliferative DR were as DR group;and 16 patients without retinopathy,as diabetic control group.Eight healthy subjects were selected as normal control group.The profiles of 42 cytokines were detected by human cytokines antibody array(Raybiotech).Results Compared with diabetic control group,in DR group,levels of epithelial neutrophil-activating peptide-78(ENA-78),growth related gene(GRO),regulated upon activation normal T cell expressed and secreted(RANTES),angiogenin,vascular endothelial growth factor(VEGF)and platelet-derived growth factor(PDGF)increased significantly(P

?AlM: To evaluate the expressions and significances of endoplasmic reticulum stress related protein ( BlP ) , hypoxia-inducible factor-1α ( HlF-1α) and vascular endothelial growth factor ( VEGF) in the retina of diabetic rats.
?METHODS:Seventy-two male Sprague-Dawley ( SD) rats were chosen and divided randomly into 6 groups:normal control 2mo (C2m, n = 12), diabetes mellitus 2mo (D2m, n=12), normal control 4mo (C4m, n=12), diabetes mellitus 4mo (D4m, n = 12), normal control 6mo (C6m, n=12) and diabetes mellitus 6mo (D6m, n=12 ) . The diabetes mellitus mouse were induced by intraperitoneal injection of 0. 1mol/L streptozotocin (STZ, 65mg/kg). The expression of BlP, HlF-1α and VEGF in the retina were detected by enzyme- linked immuno sorbent assay. The location of BlP, HlF-1α and VEGF in epiretinal membranes were investigated by immunohistochemistry staining.
?RESULTS: BlP were significantly increase than control groups in all DM groups with the course of diabetes ( P<0. 01). HlF-1α were detected higher than control groups in all DM groups (P< 0. 05), but there was no statistical significance among treatment groups. VEGF in D4m and D6m groups were higher than control groups (P<0. 05), and there was statistical significance between D4m and D6m groups. BlP can be detected in control groups a little, mainly in the inner limiting membrane and ganglion cell layers. HlF - 1α cannot be detected in control groups, meanwhile it can be detected in all layers in DM. VEGF can be detected in control groups a little, it mainly be detected in inner nuclear layer, outer nuclear layer, around retinal vessel and ganglion cell layers in DM groups.
?CONCLUSlON:The expressions of BlP, HlF-1α and VEGF increase in the retina of diabetic rats than control groups with progressive of diabetes mellitus, both endoplasmic reticulum stress and HlF-1α signal path play important role in the progress of diabetic retinopathy.

Antiviral Agents ; therapeutic use ; Hepatitis C ; drug therapy ; Humans ; Liver Cirrhosis ; drug therapy ; virology

AIM: To evaluate the relationship between axial length ( AL ) , corneal and lens refractive power, and the refractive error in children.
METHODS:Totally 44 children 88 eyes with refractive error who underwent retinoscopy with cycloplegia, to be measured spherical equivalent refractive error. Axial length was measured by a noncontact optical biometry ( ZEISS IOL-Master) , and corneal K and anterior chamber depth ( ACD) were also measured by the same machine. The refractive power of the lens was calculated by using the SRK formula. The patients were divided into 3 groups, myopia (SE<0), hyperopia (SE>+0. 50D) and emmetropia ( 0 to + 0. 50D ). Linear Correlation and Regression were used to evaluate the correlation among the optical parameters.
RESULTS:Totally 44 subjects, 88 eyes, average 9. 04±2.39 years, spherical equivalent (SE) -3. 50D to +8. 75D. Hyperopic AL was shorter than the other two groups ( P<0.05), same trend in lens power. No significant differences among the 3 groups in corneal K and ACD. There was a negative correlation between age and SE, SE and AL, SE and lens refractive power, and there was a positive correlation between age and AL, age and lens power.
CONCLUSION:As the children's growing up, SE trends to myopia, and AL becomes longer, and lens power is stronger.

Aiming at the subject characteristic of medical imaging,the authors summed up and analyzed the objective,thought and project in the reform of medical imaging experiment teaching in our school to probe into the direction of the reform of medical imaging experiment teaching and raise some thoughts about how to culture qualified students of medical imageology.

Objective: To observe the effect of preoperative effect on peri-operative pain in patients following a thoracotomy. Methods: 120 cases following lung-cancer thoracotomy were randomly allocated into four groups, 30 in each group. Cases in group A and B were treated with acupuncture analgesia 3 d before operation; cases in group A and C were treated with acupuncture analgesia after operation; and cases in group D were treated with general anesthesia. The pain management indexes in four groups were all controlled below 3. After that, analgesia-related β-endorphin and stress-related cortisol were observed before and after operation. In addition, the specific doses of postoperative analgesic-Fentanyl in four groups were compared. Results: The comparison of β-endorphin between group A, C and D showed P<0.05 one day before operation, so did group B, C and D 1 day before operation. The intra-group comparison of cortisol between the day of admission and 1 day after extubation and between 1 day before operation and one day after extubation in group A, B and D showed P<0.05, so did group C between the day of admission and 1 day after extubation. In addition, the contents of Fentanyl in postoperative analgesic pump in four groups showed P<0.05 through one-factor analysis of variance, showing a significant difference. Conclusion: Preemptive analgesia could increase the β-endorphin in patients following a thoracotomy and showed remarkable advantage when compared with the conventional postoperative analgesia. It did not cause significant difference regarding stress index cortisol. Acupuncture has no remarkable advantage when compared with operation and extubation for the major immediate stress. Additionally, postoperative acupuncture could be a substitute for the dose of pain killers and the match can be reduced by 20%.

Adolescent ; Female ; Follow-Up Studies ; Humans ; Male ; Meningeal Neoplasms ; diagnostic imaging ; metabolism ; pathology ; surgery ; Meningioma ; diagnostic imaging ; metabolism ; pathology ; surgery ; Mucin-1 ; metabolism ; Tomography, X-Ray Computed ; Vimentin ; metabolism

Objective To investigate the effects of hypoxia-inducible factor (HIF)-1α on glycolysis of human esophageal squamous carcinoma cells and the possible mechanism.Methods TE13 and Eca109 cells were cultured under normal oxygen (20％O2) and hypoxia (1％O2) conditions.The hypoxia was duration 6 hours,12 hours,24 hours and 48 hours.HIF-1α gene was stable silented by RNA interference method and TE13/small interfering HIF cells and Eca109/siHIF cells were obtained.The cell culture condition and time was same as TE13 and Eca109 cells.The changes of HIF-1α expression were detected by Western-blot.The changes of lactic acid concentration in cell culture supernatant were determined by Spectrophotometry.The changes of glucose transporter-1 (GLUT-1) and lactic dehydrogenase A (LDHA) expression at mRNA level were examined by realtime polymerase chain reaction.The changes of GLUT-1 and LDHA expression at protein level were tested by Western blot.Using t or t' test to analyze the effects of hypoxia duration on HIF-1αexpression at protein level.One-way ANOVA was applied for the difference analysis between the groups.Results In TE13 and Eca109 cells,the HIF-1α expression significantly increased under hypoxia condition and reached the peak at 12 hour (t=6.11,8.31; both P＜0.05).The lactic acid secretion of TE13/siHIF cells and Eca109/siHIF cells was (1.24±0.33) and (1.28±0.37) mmol/L,which significantly decreased when compared with TE13 and Eca109 cells [(3.25±1.34) and (4.91±1.69) mmol/L,t=2.53,3.59,both P＜0.05].The lactic acid secretion of TE13 and Eca109 cells significantly increased after hypoxia [(6.48±1.73) and (8.02± 1.95) mmol/L,t=2.715,2.050,both P＜0.05].There was no significant lactic acid secretion in TE13/siHIF cells and Eca109/siHIF cells after hypoxia (P ＞ 0.05).The expressions of GLUT-1 and LDHA at mRNA level were significantly suppressed in TE13/siHIF cells and Eca109/siHIF cells (normal oxygen:t=6.98,3.92,7.25,3.67,all P＜0.05).The expression of GLUT-1 at protein level remarkably weaked (normal oxygen:t=4.57、16.56,hypoxia:t=6.19、6.09,all P＜0.05),while the expression of LDHA at protein level slightly decreased (P＞0.05).Conclusions The level of glycolysis can be lowered by suppression HIF-1α expression in human esophageal squamous carcinoma cells.The pathway may be involved in the suppression of GLUT-1 and LDHA expression.Except for HIF-1α,there may be other regulating factors in LDHA protein expression at same time.

To explore the effects of nutritional risks on clinical outcomes [length of stay (LOS),hospitalization expense & mortality] in chronic kidney disease (CKD) patients.A total of 127 CKD patients completed the screening of nutritional risks by Nutritional Risk Screening 2002 (NRS-2002) within 24-48 hours of admission.The data of nutritional supports within 2 weeks of admission,LOS,hospitalization expense and mortality were collected.① Among them,the prevalence of nutritional risks was 18.1％.And the values were 8.2％,9.4％ and 44.1％ in early,middle and advanced CKD groups respectively; ② LOS and hospitalization expense in nutritional risk group were significantly more than the non-nutritional risk group (12.5 d vs.5.2 d,P =0.00 ; 11 806 vs.5311 yuan,P =0.00).There was a positive correlation between NRS score and LOS or hospitalization expense; ③ The nutritional support rate of nutritional risk group was only 17.4％.The progression of CKD increased the nutritional risks leading to greater LOS and hospitalization expense.We should pay more attention to the nutritional risk screening and nutritional intervention in moderate-advanced CKD patients.

Objective To investigate the effect of hexosamine biosynthesis pathway on the development of insulin resistance induced by high fat diet.Methods Normal male SD rats were randomly divided into three groups:control(fed with normal chow),high fat(fed with high fat diet for 13 weeks),and rosiglitazone (intragastric administration with rosiglitazone for 5 weeks)groups.After 13 weeks,all the rats were sacrificed,serum and muscle triglycerides(TG),serum total cholesterol(TC),and serum and muscle free fatty acids(FFA) were measured.Insulin sensitivity wss evaluated by insulin sensitivity index(ISI)and glucose infused rat(GIR) with the hyperinsulinemic englycemic clamp technique.The flux of HBP in skeletal muscle was detected with the expression level of glutamine-fructose-6-phosphate transaminase(GFAT)mRNA(RT-PCR),the content of UDPGlcNAc(HPLC)and the level of O-GlcNAc glycosylation in skeletal muscle proteins(Western blot). Results Compared with control group,senlm TG,TC,FFA and muscle TG,FFA levels of high fat group increased(aII P<0.01).both ISI and GIR decreased(both P<0.01),and the leveIs of GFAT mRNA(0.51±0.05 vs 0.18±0.02),UDP-GlcNAc[(6.18±0.86 vs 2.42±0.36)nmol/g],and O-GIcNAc glycosylation of skeletal muscle proteins in high fat group were raised(all P<0.01).In rosiglitazone group,serum and muscle TG.FFA welc deceased(all P<0.01).insulin sensitivity was increased(P<0.05)and the flux of HBP[GFAT mRNA 0.27±0.03,UDP-GIcNAc(2.62±0.32)nmol/g]was reduced(all P<0.05)as compared with high fat group. Conclusions High fat diet-induced insulin resistance in rats is correlated with the increased flux of HBP in skeletaI muscle.which is decreased by rosiglitazone.