Objective To investigate clinical significance of proinsulin and true insulin in obese children with impaired glucose tolerance (IGT).Methods There were 21 IGT and 52 normal glucose tolerance (NGT) children. Control cases were 40 normal children. The levels of serum fasting proinsulin,true insulin,insulin,c-peptide and glucose were measured in all the subjects.Results 1.Levels of fasting proinsulin,c-peptide, glucose, insulin, true insulin and homeostasis insulin resistance in obese children with IGT showed significant difference compared with NGT (P

Alkaloids ; Antineoplastic Agents, Phytogenic ; Chemical Phenomena ; Chemistry ; Harringtonines

Humans ; Traumatology

Objective To investigate the effects of ketamine on anoxia-reoxygenation(A/R)induced glutamate release from cerebral cortex neurons.Methods Primary cultured neurons obtained from cerebral cortex of fetal Wistar rats(16-18 d)were randomly divided into 3 groups:Ⅰcontrol group;ⅡA/R group andⅢketamine pretreatment+I/R group.The control group was not subjected to A/R while A/R group was exposed to anoxic air(95% N_2+5% CO_2)for 5 h followed by 24 h reoxygenation.In groupⅢdifferent doses of ketamine were added to the culture media before anoxia and the final ketamine concentrations were 1,20 and 100?mol?L~(-1) respectively.The extracellular glutamate concentration was detected at the end of 24 h reoxygenation.Results The extracellular glutamate concentration was significantly higher after 24 h reoxygenation in A/R group than in control group.Ketamine 20 and 100?mol?L~(-1) significantly inhibited glutamate release from the neurons induced by A/R in a dose-dependent manner.Conclusion Ketamine can inhibit glutamate release from neurons induced by A/R in a dose-dependent manner.

Objective To describe the genetic epidemiologic features of alopecia areata (AA) patients in China and to presume the possible genetic mo del of AA.Methods A case-controlled study of 1032 AA patients was performed to analyze the effect of genetic factors on the liability to AA.Complex segreg ation and heritability analysis were performed using Falconer's method and SAGE-REGTL programs.Results The mean age of onset was 28.98 ? 13.43 years.The d ifference in the mean age of onset was not significant between males and females.A total of 82.6 percent of patients experienced their first episode of AA befo re the fourth decades of life.A positive family history of AA was obtained in 8 7 patients (8.43%).The prevalences of AA were 1.58%,0.19% and 0.03% in the firs t-,second-and third-degree relatives of the probands respectively,which were significantly higher than those in the controls(P

OBJECTIVETo investigate clinical effects of three-column reconstruction via single posterior approach for the treatment of unstable thoracolumbar fractures accompanied by posterior column injury.

METHODSFrom December 2008 to May 2010,three-column reconstruction via posterior approach was implemented to 21 patients with unstable thoracolumbar fractures accompanied by posterior column injuries. There were 13 males and 8 females, ranging in age from 23 to 54 years old(averaged,35.5 years old). Injured vertebrae: 1 patient had injury in T11, 4 patients had injuries in T12, 8 patients had injuries in L1, 5 patients had injuries in L2, 3 patients had injuries in L3. The Cobb angle was (25.34 +/- 3.42) degrees. The operation time,blood loss during operation, Cobb angle and the bony fusion were observed.

RESULTSTwenty-one patients were followed up, and the duration ranged from 24 to 27 years old, with an average of 25.6 months. The operation time ranged from 135 to 275 min, with a mean of 185 min. The blood loss during operation ranged from 700 to 1 650 ml (averaged, 870 ml). All the patients had complete decompression. Postoperative Cobb angle was (4.01 +/- 2.03) degrees, and (4.34 +/- 2.38) degrees at the latest follow-up. All the patients got bony fusion.

CONCLUSIONTo the patients with unstable thoracolumbar fractures accompanied by posterior column injuries, three-column reconstruction via single posterior approach has both anterior approach and posterior approach advantages, which can obtain excellent clinical outcomes.

Adult ; Female ; Follow-Up Studies ; Humans ; Lumbar Vertebrae ; injuries ; Male ; Middle Aged ; Reconstructive Surgical Procedures ; adverse effects ; methods ; Spinal Fractures ; diagnostic imaging ; surgery ; Thoracic Vertebrae ; injuries ; Tomography, X-Ray Computed ; Treatment Outcome ; Young Adult

Objective To evaluate the effect on the reversal of left ventricular aneurysm (LVA) and on heart function of percutaneous coronary intervention (PCI) therapy at different time of acute myocardial infarction (AMI). Methods A total of 326 patients with primary anterior AMI-accompanied LVA diagnosed by left ventriculography (LVG) from January 2001 to July 2004 were enrolled in this study. They were randomized into 4 groups according to the time of accepting PCI:≤3 h group, 4-6 h group, 7-12 h group and one week group. At the baseline and 6 months after AMI, the parameters of left ventricular diastolic volume index (LVEDVI), left ventricular systolic volume index (LVESVI), left ventricular ejection fraction (LVEF), left ventricular wall motion score (LVWMS) and left ventricular end diastolic pressure (LVEDP) were measured by LVG. The paradox volume index (PVI) was measured by equilibrium radionuclide at one week and 6 months after AMI.At 3 year following up to, the major adverse cardiac events (MACE) were recorded. Results At 6 months after PCI, the LVESVI, LVEDVI, WMS and LVEDP were all decreased while LVEF was increased in the four groups as compared with pre-PCl (P<0.05, respectively). Those parameters changed most obviously in ≤3 h group. At the 6th month after PCI, the PVI was lower in ≤3 h group (12.1±2.1)% than in 4-6 h, 7-12 h and one week group [(15.4±2.4)%, (16.5±2.5)% and (20.4±3.7)%, all P<0.05]. Within the 3 years follow-up, the MACE was significantly lower in 3 h, 4-6 h and 7-12 h groups than in one week group, and the mortality was lower too [(2.8%, 3.0% and 3.1% vs. 17.9%, all P<0.05]. Conclusions The early, fully and permanent open of the infraction-related artery can effectively inhibit the left ventricular remodeling process, prevent LVA formation, improve LV function and prognosis.

ObjectiveTo observe protective effects of agmatine (AGM) on inflammatory response and spleen immune function in mice with trauma.Methods Forty-eight adult male C57BL/6 mice were randomly divided into three groups (n= 16 each), including control group, model group (bilateral femoral fracture and removal of 35% of the total blood volume), and AGM group (trauma/hemorrhage & AGM 200 mg/kg). Eight mice in each group were sacrificed at 3 hours and 24 hours, respectively, after modeling, and blood samples and tissue homogenate of spleen and liver were collected. The contents of tumor necrosis factor-α (TNF-α), interleukins (IL-6, IL-1β) in serum and liver tissue were determined with enzyme linked immunosorbent assay (ELISA). Serum aspartate transaminase (AST), alanine aminotransferase (ALT) and lactic dehydrogenase (LDH) were determined with automatic biochemistry analyzer. Spleen proliferation response stimulated with concanavalin A (ConA) was evaluated with methyl thiazolyl tetrazolium colourimetry (MTT).γ-interferon (IFN-γ) and IL-2 releases were determined with ELISA.Results Compared with control group, 3 hours after trauma/hemorrhage, the levels of serum TNF-α, IL-6, and IL-1β in model group were significantly elevated [TNF-α (ng/L): 145.38±31.50 vs. 23.06±11.14, IL-6 (ng/L): 496.94±50.76 vs. 47.13±17.47, IL-1β (ng/L): 321.31±43.02 vs. 29.25±16.24,allP< 0.01]. It was found that AGM treatment could alleviate the increase in serum pro-inflammatory mediators induced by trauma/hemorrhage, such as TNF-α (ng/L:111.56±25.47 vs. 145.38±31.50), IL-6 (ng/L: 412.56±44.33 vs. 496.94±50.76), IL-1β (ng/L: 273.38±45.25 vs. 321.31±43.02,P< 0.05 orP< 0.01). Twenty-four hours after trauma/hemorrhage, serum pro-inflammatory mediators were recovered to the levels in control group. There was no significant difference in TNF-α and IL-6 levels at 3 hours after trauma/hemorrhage among groups. Compared with control group, the expressions of liver TNF-α and IL-6 in model group were increased at 24 hours following trauma [TNF-α (ng/mg): 32.93±4.90 vs. 26.58±2.33, IL-6 (ng/mg): 11.20±1.66 vs. 8.38±0.89,bothP< 0.01]. However, AGM inhibited the level of TNF-α (ng/mg:28.92±3.16 vs. 32.93±4.90) and IL-6 (ng/mg: 9.03±1.28 vs. 11.20±1.66) in the liver as induced by trauma/hemorrhage (P< 0.05 andP< 0.01). At 24 hours after modeling, model group and AGM group had distinctly higher serum AST, ALT, LDH levels than those of control group [AST (U/L): 405.9±31.2, 245.7±22.1 vs. 128.2±15.9; ALT (U/L): 92.1±6.3, 51.6±5.0 vs. 30.1±3.2; LDH (U/L): 606.7±36.3, 478.7±25.3 vs. 384.0±16.6, allP< 0.01]. Nevertheless,the increase in serum AST, ALT and LDH was alleviated in AGM group (allP< 0.01). Meantime, trauma/hemorrhage produced a noticeable depression of proliferation of splenic cells and IFN-γ and IL-2 release stimulated with ConA compared with control group [proliferation rate: (40.97±4.13)% vs. (89.99±7.76)%, IFN-γ(ng/L): 91.6±12.3 vs. 353.2±21.5,IL-2 (ng/L): 53.4±6.4 vs. 91.0±12.2,allP< 0.01]. In contrast, AGM notably restored the capacity of proliferation response of splenic cells [proliferation rate: (74.86±5.75)% vs. (40.97±4.13)%, P< 0.01],enhanced the release of IFN-γ and IL-2 stimulated with ConA [IFN-γ (ng/L): 327.8±23.6 vs. 91.6±12.3, IL-2 (ng/L): 74.8±10.4 vs. 53.4±6.4, bothP< 0.01].Conclusion AGM can dramatically alleviate spleen immunosuppression, excessive inflammation and organ damage induced by trauma/hemorrhage.

AIM: To observe the curative effect of PDT combined with intravitreal injection of ranibizumab treatment for age-related macular degeneration with choroidal neovascularization ( CNV) .
METHODS:In accordance with the inclusion criteria, by indocyanine green choroidalangiography ( ICGA ) and optical coherence tomography ( OCT ) examination confirmed the diagnosis of macular CNV in 27 patients (27 eyes), treated with PDT 3 ~ 7d professional intravitreal injection of ranibizumab. At 1, 3, 6mo after treatment, the results of best corrected visual acuity (BCVA), FFA, ICGA, OCT examination and complications were observed.
RESULTS: The BCVA improved in 17 eyes ( 63%) , stable in 6 eyes ( 22%) , and decreased in 4 eyes ( 15%) . Before treatment, the average leakage area was 1 005. 69±105. 47μm, it were 875. 54 ± 103. 27μm, and 423. 37 ±79.68μm at 1 and 3mo after treatment, there were significant differences compared with before treatment ( P<0. 01). Average central macular thickness of retina before treatment was 485. 58±122. 59μm, and 398. 84±105. 32μm, 297. 74±89. 18μ m at 1 and 3mo after treatment, there were significant differences compared with before treatment( P<0. 01).
CONCLUSION: The method that PDT closed CNV combined with intravitreal injection of ranibizumab can effectively block angiogenesis recurrence, reduce the number of PDT treatment again and complications, improve the therapeutic effect.

The optimization on liquid fermentation and purification of the fibrinolytic enzyme from Stenotrophomonas maltophilia(DR-929) was investigated.The results showed the best fermentation are amidulin 2.0%,soya flour 1.0%,yeast extract 0.5%,NaCl 1.0%,CaCl2 0.02%,MgSO4 0.05%,inoculum of 36 hours,fermental time 4d,initial pH 8.0 or 9.0,temperature 25℃,volume of media 30ml,volume of inoculum 5% or 6%.The purification process includes the following steps: removing cells by the centrifugation,25%~70% saturation ammonium sulfate precipitation,HIC with Phenyl FF(high sub),IEC with Q-Sepharose FF,gel filtration chromatography with Superdex 75.SDS-PAGE electrophoresis was used to examine the purification effect,and the results indicated that homogeneous strap in SDS-PAGE and has a molecular weight around 28.3kDa.The purification factor and activity recovery of the fibrinolytic enzyme are 271.5 and 24.5%,respectively.