OBJECTIVETo optimize the hydrolysis process of linarin by response surface methodology, and to use the model of aldose reductase to study the acacetin's activity of aldose reductase inhibitory.

METHODThe model of acacetin enzyme in vitro was established by the determination of fluorescence absorption of NADPH, the inhibition rate of acacetin aldose reductase was calculated, and then the IC50 of hydrolysis was obtained. The hydrolysis process of linarin hydrolysis condition was optimized by using response surface method.

RESULTThe results indicated that the IC50 of acacetin (2.74 mg x L(-1)) was less than the IC50 of linarin (3.53 mg x L(-1)). Hydrolyzation time of 7.4 h, sulphuric acid concentration of 0.54 mol x L(-1) and the ratio of material to liquid of 3 : 1 were the optimum conditions.

CONCLUSIONHydrolyzate acacetin has preferable inhibitory activity of aldose reductase. The optimized hydrolysis condition of linarin is convenient to use with good predictability.

Aldehyde Reductase ; antagonists & inhibitors ; metabolism ; Animals ; Diabetic Retinopathy ; enzymology ; Drugs, Chinese Herbal ; chemistry ; pharmacology ; Enzyme Inhibitors ; chemistry ; pharmacology ; Flavones ; chemistry ; Glycosides ; chemistry ; pharmacology ; Glycosylation ; Humans ; Hydrolysis ; Male ; Rats ; Rats, Wistar ; Retina ; enzymology

Purpose To analyze the relevance between magnetic susceptibility weighted imaging intratumoral susceptibility signal intensity (ITSS) and diffusion weighted imaging apparent diffusion coefficient (ADC) with different grade gliomas, and to explore the value of ITSS and ADC in the preoperative grading of gliomas. Materials and Methods Fifty-two cases of glioma patients underwent magnetic susceptibility weighted imaging and diffusion weighted imaging scans, all subjects were divided into low-grade glioma group (18 cases) and high-grade glioma group (34 cases) according to brain tumor grading standard, correlation between ITSS grade and ADC values with tumor grade was analyzed, and ROC curve was used to evaluate the diagnostic efficacy of ITSS and ADC values in the grading of brain glioma. Results Difference of ITSS grading was statistically significant (χ2=27.458, P<0.01) among different grade gliomas;difference of ADC values between different grade gliomas was also statistically significant (U=689.000, P<0.01); there was a significant positive correlation (r=0.727, P<0.001) between ITSS grading and pathological grading, ADC values were significantly negatively correlated (r=-0.622, P<0.001) with tumor grading, and ITSS grading was significantly negatively correlated (r=-0.617, P<0.001) with ADC values among different grade brain gliomas. With pathological grading as reference standard, the diagnostic sensitivity, specificity, accuracy, positive predictive value and negative predictive value of ITSS for preoperative glioma grading was 85.29%, 77.78%, 82.69%, 87.88%and 73.68%, respectively, while the diagnostic sensitivity, specificity, accuracy, positive predictive value and negative predictive value of ADC values for preoperative glioma grading was 97.06%, 88.89%, 94.23%, 94.29%and 94.12%, respectively. Conclusion There is a significant correlation between ITSS grading, ADC values and pathological grading of gliomas, the combination use of ITSS and ADC values can significantly improve the preoperative grading accuracy of brain glioma.

Objective To detect hepatitis C virus core antigen in 7721 cells transfected with HCV cDNA by immunohistochemistry method with human single chain Fv antibody(scFv). Methods The recombinant phages were panned by core antigen which was coated in a microtiter plate. After three rounds of biopanning, 48 clones were identified specific to core antigen. The affinity and specificity of scFv were evaluated by ELISA and immunohistochemistry. Results ScFv-core DNA digestion and sequence data showed that the scFv gene was composed of 774bp. Conclusion Human single chain Fv antibody against HCV core antigen has a specific combining capacity with hepatitis C virus core antigen.

Objective To study the value of CT and MRI in the diagnosis of hepatocellular adenoma(HCA).Methods The comprehensive imaging features of HCA in 11 patients confirmed by pathology were analyzed retrospectively in our hospital.Results 11 patients presented with a total of 18 lesions, and plain CT showed low or slightly low density in all lesions, with irregular high density area in two lesions.The CT values of the lesions were significantly higher than in adjacent normal liver in the arterial phases(P<0.05).On T1WI, two lesions showed low or slightly low signal intensity, and 16 lesions showed slight hyperintensity.On T2WI, 14 lesions showed hyperintensity, and 4 lesions showed hypointensity.All lesions showed significant enhancement in arterial phase of dynamic enhanced scanning.Pseudocapsule enhancement was revealed in 17 lesions.For 18 lesions, ADC values were measured on DWI, and the ADC values of the lesions were higher than the value of surrounding normal liver parenchyma.Conclusion Dynamic contrast-enhanced CT combined with MRI and ADC value measurement can provide valuable information in diagnosis of HCA.

Objective To estimate the anatomic variation of the right inferior phrenic artery(RIPA)with multi-detector tomography(MDCT)scans.Methods 45 patients with hepatocellular carcinoma(HCC)and 46 healthy subjects were examined by contrast-enhanced CT scan(CTA)at 16-section CT scanner.Then the images were reconstructed with MPR,VR and MIP.Results RIPA were detected by CTA in all cases(sensitivity was 100%).The origin of RIPAs directly from the aorta in 42%,celiac trunk in 37%,right renal artery in 15%,left gastric artery in 3% and proper hepatic artery in 2%.For the reconstructive images quality,MPR and MIP were better than VR,but in showing the origin of RIPAs,MPR and VR were better than MIP.In compared with normal group,the diameters of RIPAs in tumor group were larger.Conclusion MDCT estimates well for the anatomy of RIPAs,which is significant for planning and embolization of extrahepatic RIPA supply in HCC.

Objective To investigate the status of personality disorder and the relationship with childhood trauma in heroin addicts.Methods 108 heroin dependent patients were investigated by Personality Disorder Ques-tionnaire -4 +(PDQ -4 +)and Childhood Trauma Questionnaire -Short From (CTQ -SF).Results The comor-bidity rate of heroin dependence and personality disorder was between 47.2% and 10.2%,which had a higher posi-tive rate of for borderline (47.2%)and antisocial (38.0%)personality disorder and the lowest for depression (10.2%).The borderline personality disorder score was highest[(4.63 ±2.16)points]and the lowest was histrionic personality disorder [(2.65 ±1.49)points]in 12 subscales,which were significantly higher than those in the national norm,and the differences were statistically significant (t =13.54,2.57,all P <0.05).It had significantly positive correlation between borderline and antisocial personality disorder and the each five factors of childhood trauma experi-ence (r =0.265,0.390,0.207,0.303,0.276;0.225,0.219,0.228,0.236,0.287,all P <0.05 ).In addition, depressive personality disorder and physical abuse,emotional neglect and body ignored showed significantly positive correlation (r =0.226,0.227,0.196,all P <0.05).Conclusion There was the comorbidity rate of personality disorders and heroin dependence,and the higher positive rate was borderline and antisocial personality disorders.It was a certain correlation of childhood traumatic experience and personality disorders,especially borderline,antisocial and depressive personality disorder.

Acupuncture Therapy ; Aged ; Aging ; Hair Color ; Humans ; Male

ObjectiveTo evaluate the clinical effect of hyperbaric oxygen (HBO) on hypertensive cerebral hemorrhage.Methods100 patients treated with HBO were taken as treatment group, and other 50 patients without HBO as control group. Their effectual rate were compared.ResultsThe total effectual rate of treatment group was 61%,and that of control group was 42%(χ2=4.86,P<0.05).ConclusionHBO can improve the recovery of nervous disorder after hypertensive cerebral hemorrhage.

AIM: To explore the long-term efficacy of Q-factor guided laser epithelial keratomleusis ( LASEK ) for myopia and astigmatism with positive Q-factor.
METHODS: There were 158 eyes which were myopia and astigmatism with positive Q- factor taken in two groups randomly: 86 eyes accepted Q - factor guided LASEK as observation group and 72 eyes accepted routine LASEK as control group. The difference between the two groups about all data was similar. The uncorrected visual acuity ( UCVA ) and the best corrected visual acuity ( BCVA ) as well as diopter, ocular tension, corneal topography, Keratometry value K, aspherical factor Q, Higher-order aberrations ( HOA ) , corneal thickness by ultrasound and, contrast sensitivity ( CS ) , Haze were examined and compared before and after surgery. All the cased were followed up for 14d, 1, 3, 6, 12mo. And there were no statistical difference among the data before surgery.
RESULTS: After 12mo there were no statistical difference between the two groups about UCVA and BCVA. But the safety index of observation group was 1.10, that of control group was 1. 07. The validity index of observation group was 1. 06, that of control group was 0.99. The HOA of observation group was 0. 45±0. 17μm, and that of control group was 0. 72±0.25μm, there was statistically significant difference (t=-8. 193,P=0. 000). Q factor of observation group was 0. 41±0. 17, that of control group was 0. 77±0. 22, there was significant difference (t=11. 377,P = 0. 028). The contrast sensitivity of 3mo post surgery of patients in the observation group returned to the level of before surgery. But in the control group the contrast sensitivity of the patients did not returned until 6mo.
CONCLUSION:Q-factor guided LASEK for myopia and astigmatism with positive Q-factor is stable, safe and effective. The operation allow for reducing the high order aberrations, maintaining the most asphericity of cornea, saving more in corneal tissue, which cause faster recovery of contrast sensitivity, less haze and better visual quality.

Th17(T helper 17 cell), a newly discovered subset of T cells is associated with IL-23 and characterized by production of IL-17, the functions of which are distinct from those of Th1, Th2 and Treg subsets. The development of Th17 cells can be promoted by TGF-beta1, IL-6, and IL-23; but inhibited by IFN-gamma, IL-4 and Socs3. It is clear that Th17 cells have protective effects on body by facilitating the pro-inflammatory responses. On the other hand, the role of Th17 cells in the pathophysiology of autoimmune diseases has been described.
Autoimmune Diseases ; immunology ; physiopathology ; Interleukin-17 ; biosynthesis ; immunology ; Interleukin-23 ; biosynthesis ; genetics ; T-Lymphocyte Subsets ; immunology ; physiology ; T-Lymphocytes, Helper-Inducer ; classification ; cytology ; immunology ; Transforming Growth Factor beta1 ; biosynthesis ; genetics