1.Preparation and characteristics of BCUN- loaded lipid ultrasound contrast agent
Journal of Chongqing Medical University 2007;0(11):-
Objective:To preparate BCUN-loaded lipid ultrasound contrast agent and detect its physical properties and contrast-enhancing effects.Methods:Mechanical oscillation was used to prepare BCUN-loaded lipid contrast agent.Density was detected and analyzed with microscope.Malvern determined intensity,disposition and Zeta potential.RP-HPLC detected envelopment rate.Cryodesiccated-microb ubbles were sterilized by 60Co irradiation.Following injected it through rabbit ear vein,effects of ultrasounic enhanced imaging in rabbit liver was observed.Results:The density of microbubble was(2.6~3.1)?109/ ml.The mean intensity was(1.05?0.20)?m.The mean Zeta potential was(12.93?1.84)mV.The mean nvelopment rate was(42.6?0.11)%.After injecting this microbubble,good and sustained ultrasounic enhanced images in rabbit liver were seen.Conclusions:BCUN-loaded lipid contrast agents were successfully prepared,which hopefullyprovide a new option oftargetingtreatment for the tumor.
2.Analysis onZhang Yuqing’s medical recordsin treating gynecological diseases
International Journal of Traditional Chinese Medicine 2015;(3):201-204
The present paper has reviewed and researched on 112 gynecological records from volume 17 ofZhang-Yuqing’s medical records, and has found that there were 9 common methods of treating gynecological diseases, namely dredging and regulatingqi and blood, adjusting qi to nourish ying, soothing the liver wood, harmonizing the liver and spleen (stomach), tonifying spleen and kidney, nourishing liver and kidney, regulating vital and conception vessels, eliminating dampness and phlegm, and nourishing Yin and clearing away heat.The treatment of gynecological diseases reflects the holistic concept and dialectical concept, and the valuable experience still has a high theoretical value, as well as clinical value, which is worth exploring and discussing.
3.Mechanism of intestinal absorption of tetrandrine in rats
Chinese Traditional and Herbal Drugs 1994;0(02):-
duodenum, respectively. Conclusion The absorption of tetrandrine is first-order process with passive diffusion mechanism. Tetrandrine is well absorbed at all segments of intestine in rats.
4.The clinical value of multi-slice spiral CT in diagnosis of non-angle caused nutcracker syndrome
Peipei HAO ; Xuehua YANG ; Yonggao ZHANG
Journal of Practical Radiology 2014;(4):631-634
Objective To evaluate the diagnostic value of multi-slice spiral CT for non-angle caused nutcracker syndrome(NCS). Methods A total of 177 cases of clinical suspected nutcracker syndrome patients recevied multi-slice spiral CT examination,,inclu-ding 33 patients with negative results,144 cases patients with positive results.The analysis was performed by measuring the angle between superior mesenteric artery(SMA)and the abdominal aorta(AA),and the ratio of the diameter of the narrowest and expan-sion in the left renal vein.Results Within 33 cases of nutcracker-negative patients,the angle of SMA and AA was (46.06 ± 24.46)°;the ratio was (2.11±0.76).144 cases was diagnosed as nutcracker-positive patients,the angle of SMA and AA was (23. 10±9.63)°;the ratio was (3.83±1.24).There was positive correlation between angle and ratio in NCS (P<0.0001).Among9 ca-ses of nutcracker syndrome caused by non-angle factors three were oppressed by the uncinate process pancreas,two cases were caused by the malformations of the left renal vein,one case was posterior nutcracker syndrome,one case was oppressed by portal veinOne case of pressured renal vein due to tortuosity renal vein coiled renal artery.One case of the left renal vein compression lumen narrowing,causing significant downward pressure on the left renal vein.Conclusion Spiral CT angiography reconstruction can clear-ly show the cause and the location of the left renal vein compression,which may provide helpful information in diagnosing nutcracker syndrome caused by non-angle factors.
5.Analysis of the Related Risk Factors for Elevated ALT Level in Patients with Non-Alcoholic Fatty Liver Diseases
Xidong GU ; Xiaoying ZHANG ; Xuehua SUN
Journal of Modern Laboratory Medicine 2017;32(3):140-143
Objective To analysis the risk factors for elevated ALT level in patients with Non-alcoholic fatty liver diseases (NAFLD).Method Fifty-six (male 25,female 31) NAFLD patients with elevated ALT and 153 NAFLD patients (male 64,female 89) with normal ALT and 160 (male 80,female 80) health subjects were selected.ALT was detected by rate assay,total cholesterol (TC),triglycerides (TG),low-density lipoprotein cholesterols (LDL-C),high-density cholesterol (HDL-C) and uric acid (UA) were detected by enzymatic method.Free fatty acid (FFA) was detected by immunoturbidimetry assay.Spearman correlation was used to analysis the relation between ALT and TC,TG,LDL-C,HDL-C,UA and FFA.Logistic regression was used to analyses the risk factor for elevated ALT level.Results TC,TG,LDL-C,UA and FFA levels were significantly higher in NAFLD group (including normal ALT group and elevated ALT group) than those in health group no matter male and female,HDL-C was significantly lower in these two groups when compared to control group,but binary logistic regression and spearman analysis showed that only UA and FFA were the risk factors for elevated ALT level and significantly positively correlated with ALT level,abnormal UA and FFA for male were associated with 3.96-fold(95CI% =1.40~ 11.22,P=0.010) and 3.27-fold (95 % CI =1.14 ~ 9.40,P =0.028) of increased risk of elevated ALT level respectinely,correlation coefficient were 0.40(P=0.000),0.29(P=0.006),Meanwhile Exp(B) of elevated ALT level for female with abnormal UA,FFA were 4.49 (95CI%=1.79~11.28,P=0.001) and 3.17 (95CI% =1.25~8.04,P=0.015),correlation coefficient were 0.34 (P =0.000),0.27 (P =0.003).Conclusion Elevated ALT level was not associated with dyslipidemias,but related to UA and FFA.They can be used as candidate markers for predicting severity of liver damage.
6.Assay or Magnolol and Honokiol in Officinal Magnolia (Magnolia officinalis) and Its Processed Products
Quan ZENG ; Xuehua SONG ; Quan ZHANG
Chinese Traditional and Herbal Drugs 1994;0(01):-
Contents of magnolol and honokiol in Magnolia officinalis Rehd. et Wils. and its processed products,yellow-fried, burn -fried and ginger-fried M. officinalis Rehd. et Wils. as well as commercially available M.officinalis Rehd. et Wils. and its processed products were assayed by TLC Scanning. Results showed that contents of the two constituents decreased after M. officinalis Rehd. et Wils. was processed. Among them the burn-fried product showed a most pronounce decrease of 30%, while both yellow-fried and ginger-fried products decreased about 20%. The contents of magnolol and honokiol in commercial M. officinalis Rehd. et Wils. and its ginger-fried product available in other provinces and cities differed greatly with some almost contain no magnolol and honokiol.
7.Small intestinal absorption manners of glimepiride in rats
Rong ZHANG ; Laichun LU ; Xuehua JIANG ;
Journal of Third Military Medical University 2003;0(10):-
Objective To study the small intestinal absorption patterns of glimepiride in rats. Methods A rat model of small intestinal absorption in vivo was employed in this study. The small intestinal absorption rate of glimepiride was detected by high performance liquid chromatography. Results At the low and high concentrations of glimepiride, the average small intestinal absorption rates were 0.233 6 h -1 and 0.217 8 h -1 , respectively. Conclusion The small intestinal absorption pattern of glimepiride might be passive diffusion.
8.Effect of comprehensive nursing education on depression, anxiety and quality of life of patients with hepatocellular carcinoma after surgery
Qiongxia LI ; Min ZHANG ; Xuehua ZHANG ; Junhua LIANG ; Lihui XIONG
Chinese Journal of Practical Nursing 2021;37(11):850-856
Objective:To analyze the effect of comprehensive nursing education on anxiety, depression, quality of life and survival of patients with hepatocellular carcinoma (HCC) after surgery.Methods:A total of 136 HCC patients were randomly divided into two groups: general nursing education group and comprehensive nursing education group. The comprehensive nursing education group carried out 12 months of health belief education, psychological care, care activities and telephone condolence. The routine nursing group received basic education for 12 months. The changes of anxiety and depression were assessed by hospital anxiety and depression scale (HADS). The quality of life (QOL) of participants within 12 months was assessed using the European research and treatment cancer quality of life questionnaire (QLQ-C30). The 3-year survival of the two groups was compared.Results:There was no significant difference between the two groups in baseline data. At the 9th and 12th month, the HADS-A score of the comprehensive nursing education group was significantly lower than that of the general nursing group ( P< 0.05). In the 12th month, the overall health of QLQ-C30 in the comprehensive nursing education group was better than that in the general nursing group ( P<0.05). The QLQ-C30 function score of the comprehensive nursing education group at the 12th month was better than that of the general nursing group ( P<0.05). There was no significant difference in QLQ-C30 symptom scores between the two groups at all time points ( P>0.05). The overall survival of the patients in the comprehensive nursing education group was better than that in the general nursing group ( P=0.026). Conclusion:the comprehensive nursing education can reduce the anxiety and depression of HCC patients after surgery, and can improve their quality of life and survival.
9.Evaluation of the mannose-binding lection gene polymorphism on the severity of community acquired pneumonia in adults
Xuehua LIU ; Xueru ZHANG ; Qing LI ; Zhuomin TIAN
Chinese Critical Care Medicine 2014;26(9):655-660
Objective To evaluate the significance of the mannose-binding lection (MBL) gene polymorphism at code 54 of exon 1 and MBL serum level and C-reactive protein (CRP) in the severity of community acquired pneumonia (CAP) in adults.Methods A prospective observation was conducted.104 adults Han patients with CAP hospitalized in Tianjin People's Hospital were enrolled.Frequencies of MBL54 alleles and genotypes were measured.The patients were evaluated by pneumonia severity index (PSI) score and were graded.Serum MBL was determined by enzyme linked immunosorbent assay (ELISA),and serum CRP was detected by immunoturbidimetry before and 4 days and 7 days after the treatment.100 healthy control subjects with the same region,age,gender,nationality were enrolled as control group.Serum MBL and CRP levels were compared between CAP group and the control group or among different grades of PSI,and the correlation was analyzed.Results The variation of GGC→GGC in MBL54 was found in CAP patients and controls.Similar frequencies of genotypes (x2=0.018,P=0.893) and alleles (x2=0.019,P=0.903) of MBL54 with wild type and mutant type were found between two groups.The serum MBL level (mg/L) before and 4 days and 7 days after the treatment in CAP group was increased followed by the reduction and they were 3.75 ± 1.78,4.53 ± 1.99 and 4.04 ± 1.91,respectivelv,which were significantly higher than those in control group (2.84 ± 1.41,all P<0.01).The serum CRP levels (mg/L) in CAP group were gradually declined,and they were 66.88 ± 40.47,51.21 ± 37.54,36.91 ± 36.02,respectively,which were significantly higher than those in control group (6.96 ± 2.19,all P<0.01).There were 12 cases with PSI grade Ⅰ,32 cases with grade Ⅱ,20 cases with grade Ⅲ,22 cases with grade Ⅳ and 18 cases with grade V in CAP patients.There was no significant difference in frequencies of MBL54 genotypes among different grades of PSI (x2=1.210,P=0.876) and between general ward and intensive care unit (x2=0.569,P=0.451).No differences in the serum MBL level before (F=1.313,P=0.279) and 4 days (F=1.705,P=0.165) and 7 days (F=1.684,P=0.170) after the treatment were found among different PSI grades.The serum MBL level 4 days after the treatment was significantly higher than that before treatment,then decreased to the level before treatment on the 7th day after treatment in CAP patients with grade Ⅱ-Ⅳ.There was significant difference in serum CRP level before (F=23.179,P=0.000) and 4 days (F=26.601,P=0.000) and 7 days (F=10.358,P=0.000) after the treatment among different PSI grades in CAP patients.The serum levels of CRP in patients with different PSI grades were gradually decreased with time prolonged,the higher the PSI grade,the more obscure the serum CRP decrease.No correlation was found between PSI grade and serum MBL before and 4 days and 7 days after the treatment (before treatment:r=-0.205,P=0.145; 4 days after treatment:r=-0.062,P=0.662; 7 days after treatment:r=-0.063,P=0.656),and positive correlation between PSI grade and serum CRP was found (before treatment:r=0.809,P=0.000; 4 days after treatment:r=0.842,P=0.000; 7 days after treatment:r=0.702,P=0.000).Conclusions The MBL54 codon genotypes had no effect on the susceptibility of CAP.The serum MBL was elevated and dynamic changes with increasing treatment time in CAP patients were shown.MBL can be used as a reaction of CAP in acute stage.But it cannot be used as an inflammatory marker for the severity of CAP.
10.A Novel Biomimetic Porphyrin Biosensor Based on Poly (3,4-ethylenedioxythiophene) and 1-Pyrenebutanoic Acid Decorated with Hematin and Its Application in Bioelectrical Catalysis of Catechol
Xuehua YU ; Jinming KONG ; Lianzhi LI ; Xueji ZHANG
Chinese Journal of Analytical Chemistry 2014;(10):1400-1407
A new biosensor was prepared based on conductive polymer poly ( 3 , 4-ethylenedioxythiophene ) ( PEDOT) and 1-pyrenebutanoic acid ( PBA) through π-π stacking, as well as hematin associated with PBA through coordinate bonds of Zr4+ and carboxyl group. Its stability and sensitivity were examined by cyclic voltammetry ( CV) , electrochemical impedance spectroscopy ( EIS) and current-time ( i-t) method. A pair of well defined and quasi-reversible redox peaks was observed when GCE/PEDOT/PBA/hematin was tested by CV in PBS without oxygen. The electron transfer rate constant was estimated to be 4. 8 s-1 . Results indicated that the PEDOT film enhanced the electron transfer process of hematin. When the i-t method was used to detect the response of biosensor to catechol with different concentrations, it displayed a linear response for the reduction of catechol in the range of 0. 5-200 μmol/L. The linear equation was i=0. 018C+0. 006 ( R=0. 9998), and the detection sensitivity was 0. 258 μA (μmol/L· cm2) with a detection limit of 0. 33 nmol/L (S/N=3). The results illustrate that the GCE/PEDOT/PBA/hematin biosensor is very sensitive and stable.