Objective To observe the changes in endothelin(ET), nitric oxide(NO) and C-reactive protein(CRP) before and after the rosiglitazone therapy in patients with impaired glucose tolerance(IGT). Methods 72 IGT patients were divided randomly into 2 groups: rosiglitazone group(n=45) and placebo group(n=27). 15 weeks later, the efficacy of rosiglitazone was compared. Results The levels of ET, CRP were decreased and NO increased significantly in rosiglitazone group compared with those before treatment (ET 54.8±10.0 pg/ml vs 72.8±24.3 pg/ml, P<0.01;CRP 4.58±0.38 mg/L vs 5.99± 0.85mg/L, P<0.01 ; NO 41.0±10.0 μmol/L. vs 31.3±9.0 μmol/L, P<0. 01)). However, the levels of ET,CRP and NO in placebo group did not change singnificantly (P>0. 05). Conclusions Rosiglitazone can singnificantly improve ET, NO, CRP level in IGT patients, which means an additional effect of rosiglitazone on the correlation of inflammation and endothelial disturbance.

Objective To discuss the clinical features of immunocompetent patients with Penicilliosis marneffei.Methods To analyze and summarize the clinical data of 4 immunocompetent patients with Penicilliosis marneffei.Results Clinical manifestation of patients centered on intermittent slight or mild fever,lymphadenectasis,skin eruptions,osteolytic destruction,anaemia,and leukocytosis.The cultural Penicillium marneffei in specimen such as blood,pus showed a higher positive rate.Amphotericin B and itraconazole was available in treatment.Conclusion Immunocompetent people can be infected by Penicillium marneffei,and they appear nonspecific in clinical manifestation after infection.A timely and effective antifungal therapy can improve the prognosis of patients.

Objective To determine the minimal local analgesic dose (MLAD) of hypobaric levobupivacaine in elderly patients undergoing spinal anesthesia during lower limb surgery. Methods A total of 25 patients underwent spinal anesthesia with hypobaric levobupivacaine during lower limb surgery. The initial dose of levobupivaeaine was 7.50 mg for the first patient. The dose for next patient was added by 0.25 mg if the level of sensory block was lower than that of T10, conversely the dose was subtracted by 0.25 mg. The MLAD of hypobaric levobupivacaine was calculated with up-and-down sequential experiment according to Dixon-Messay method. Results The MLAD of hypobaric levobupivacaine were 6.67 mg (95% confidence interval: 6.34-7.25). The anesthesia effects of all patients were good. The degree of motor blockade of the healthy leg was less than another leg.The intraoperative and postoperative complications rates associated with spinal anesthesia were low.Conclusions The MLAD of hypobaric levobupivacaine is 6.67 mg in elderly patients undergoing spinal anesthesia during unilateral lower limb surgery.

Adult ; Amputation ; methods ; Female ; Humans ; Knee Joint ; Leg Injuries ; surgery ; Male ; Surgical Flaps

Objective To screen the active tuberculosis patients among HIV infected patients,and investigate the diagnostic methods for active tuberculosis among TB/HIV co-infected patients.Methods From August 2006 to March 2007,660 HIV/AIDS patients were enrolled.The study was conducted at 4 authorized hospitals for AIDS in Nanning and Liuzhou.Chest X-ray(CXR),acid-fast stain test of sputum smear and fast culture were applied if CD+4 T cell counts were below 350 cells/mm3 or the patients at least have one suspected symptom.Result The CD<;+>4 T cell count in 76.1% (502/660) of the patients was less than 200 cells/mm3.TB/HIV coinfection was found in 22.9% (151/660) of the HIV patients.Among them,74.8% (113/151) of them were pulmonary TB patients.One third of them were extra-pulmonary TB patients,and 68.1% of them involved lymph node.In 264 patients with negative sputum smear test and CXR,20.1% (53/264) of them showed positive results in fast culture tests.In addition,the non-tuberculosis mycobacterium (NTM) infection accounted for 38.5% culture positive cases.Conclusions The TB/HIV coinfection rate is 22.8%.Liquid rapid culture of sputum plays an import role in diagnosing of active tuberculosis among HIV patients.There are considerable proportions of NTM or extra-pulmonary TB coinfection in HIV patients.

This research tried improving the specificity and efficiency of gene transfection in gene therapy and tried making the liposome a better gene transfer vector to brain by use of the monoclonal antibody (anti-Lex/SSEA-1)-mediated targeting of liposome. The derivatized monoclonal antibody was conjugated to the liposome DOSPER to form the targeting liposome P-MMA-DOSPER. Then, the pEGFP-C2 encapsulated in P-MMA-DOSPER or DOSPER was injected into the lateral ventricle of SD rats respectively, and the brains were taken for frosted slice 1, 3, 7 or 14 days later. The expression of GFP was observed under fluorescent microscope. There was a lot of expression of GFP around the lateral ventricle of rats in each group. But the indirect fluorescence antibody test showed the ratio of GFP+/nestin+ cells to nestin+ cells of every marking time point in the group of P-MMA-DOSPER was higher than the one in the group of DOSPER; the difference was found to be statistically significant (P<0.01). The results proved that the P-MMA-DOSPER can permeat the ependyma and can transfer gene into the nerve stem cells in vivo safely and effectively.
Animals ; Antibodies, Monoclonal ; metabolism ; Brain ; metabolism ; Fatty Acids, Monounsaturated ; metabolism ; Female ; Gene Transfer Techniques ; Genetic Vectors ; genetics ; metabolism ; Green Fluorescent Proteins ; genetics ; metabolism ; Liposomes ; Male ; Polymethyl Methacrylate ; metabolism ; Rats ; Rats, Sprague-Dawley ; Transfection

Placido disk is widely used in corneal topography. In order to solve the problem that the convex of the corneal can not be precisely located in the Placido corneal topography system, an algorithm of corneal reconstruction based on the Placido disk was introduced. The key of this method is the calculation of radius of corneal convex by using the innermost ring data. Based on image analysis result, we precisely calculated the radius of corneal convex iteratively by connecting the convex and the first ring using a circle, and then calculated the location of all the reflect point and its power. At last we created the pseudo color map of the human corneal. The corneal was simulated by using standard steel sphere, and the calculating errors of the result were all below 0.25D. It showed that the algorithm used in this work could get relatively accurate powers and would have fair stability.
Algorithms ; Cornea ; pathology ; Corneal Topography ; methods ; standards ; Corneal Wavefront Aberration ; Humans ; Image Processing, Computer-Assisted

Objective: To explore the correlation between pull-up ability and upper body composition of male college students in a college in Guangxi, and to provide scientific guidance for college students’ exercise. Methods: A total of 685 male college students were randomly selected from a college in Guangxi.Pull up tests were implemented according to the national physical health test standards. Measurements of muscle mass, fat mass, fat percentage, etc. of the upper limbs were conducted by using the Ogilvy Body Composition Meter (TANITA MC-180). Data entry and analysis were performed by using SPSS 23.0. Results: The pass rate of male college students in the region was 21.7%; There was a statistically significant difference in the fat mass and percentage of body fat between males with different pull-up ability (F=11.30，14.18，12.91，15.22，P<0.01).After controlling age, height, weight and BMI, partial correlation analysis showed that there was a negative correlation between the pull-up ability of male college students and the fat mass and limb fat rate of both upper limbs(r=-0.22, -0.33, -0.31, -0.38, P<0.01). Conclusion The ability of male students in Guangxi to pull up is needed to be improved. Pull-up exercises can reduce fat mass and fat percentage in the upper limbs and improve body composition.

Objective:To investigate and summarize the early management experience of 22 patients with end-stage heart failure(ESHF) who underwent left ventricular assist device(LVAD) implantation in an intensive care unit(ICU) in a single center.Methods:Data of 22 patients with ESHF treated with LVAD in the ICU of TEDA International Cardiovascular Hospital from September 2020 to August 2022 were retrospectively analyzed. There were 16 males and 6 females, aged from 20 to 67 years old, with a mean age of(51.0±13.3)years old. There were 21 cases with dilated cardiomyopathy, 1 case with ischemic cardiomyopathy, 6 cases with tricuspid regurgitation, 1 case with intra-aortic balloon pump for cardiogenic shock, and 5 cases with cardiac resynchronization therapy for arrhythmia. After the operation, all patients received restricted fluid therapy, a " stepwise" anticoagulation strategy, and strict blood pressure management. The postoperative complications and treatment process were reviewed, the treatment and management experience were summarized, and the prognosis of the patients was statistically analyzed.Results:All 22 patients survived within 90 days after surgery, and 21 patients(95.5%) recovered well, the pump works fine and there was no hemolysis and thrombosis of LVAD. Major complications included: 1 case of severe pneumonia(4.5%), 2 cases of pericardial tamponade(9.1%), 1 case of intracerebral hemorrhage(4.5%), 1 case of mediastinal infection(4.5%), 5 cases of positive occult blood in gastric juice(22.7%), no cases of right ventricular failure、aortic insufficiency and cerebral infarction. The duration of postoperative mechanical ventilation was 17(8.5, 51.5) h, and the ICU stay was 14(10, 27) days.Conclusion:LVAD is another effective treatment for patients with ESHF in addition to heart transplantation. Good postoperative blood pressure control, " stepwise" anticoagulation strategy and " restrictive" fluid management can reduce postoperative complications in the early phase of post-operation, which is crucial for the prognosis of patients with LVAD.

Objective To investigate the application value of dual-layer spectral computed tomography(DLCT)45 keV single energy image in follow up after transcatheter arterial chemoembolization(TACE)for hepatocellular carcinoma(HCC).Methods The DLCT images of 60 patients with HCC after TACE treatment were analyzed retrospectively.The CT value and standard deviation(SD)value of the lesion region of interest(ROI)and surrounding normal liver parenchyma on two kinds of images with 45 keV energy spectrum CT and 120 kVp conventional CT were measured respectively,then the contrast-to-noise ratio(CNR)between the lesions and surrounding normal liver parenchyma was calculated,and their differences were compared.The image quality of the two kinds of images was scored subjectively with the 3-point method,and the patients were divided into different groups according to the enhance-ment degree and tumor staining.The receiver operating characteristic(ROC)curve was also drawn.Results(1)There was no signif-icant difference in CNR between arterial phase,portal phase,and delayed phase of 120 kVp conventional CT(Hc=1.128,P>0.05).The CNR of 45 keV energy spectrum CT was higher than that of 120 kVp conventional CT,with a statistically significant difference(Z=5.060,P<0.05).(2)The subjective score of 45 keV energy spectrum CT was higher than that of 120 kVp conventional CT,and the difference was statistically significant(Z=5.335,P<0.05).ROC curve analysis showed that 45 keV energy spectrum CT had a larger area under the curve(AUC)than 120 kVp conventional CT,and the difference was statistically significant(Z=4.136,P<0.001).Conclusion 45 keV energy spectrum CT image can significantly improve the CNR between tumor and normal liver parenchyma,and it has the better image quality and higher diagnostic efficiency.