1.Studies of Nuclear Factor-κB in peripheral mononuclear cell of type 2 diabetes patients with macrovascular complications
Dajun LOU ; Qiqian ZHU ; Xuwei SI
Journal of Chinese Physician 2008;10(11):1450-1452
Objective To study the relationship between NF kappa-B (NF-κB) and the development of diabetic macroangiopathy in patients with type 2 diabetes, the expression level of Nuclear Faetor-κB in peripheral mononuclear cell of type 2 diabetes patients with and without macroangiopathy were compared, Methods Enzyme-linked immunosorbent assay was used to measure soluble intercellular adhesion molecule-1 (slCAM-1) in plasma and immunohistochemical method was used to measure the activity of NF-κB in peripheral blood mononu-clear cell in 50 type 2 diabetes patients with macroangiopathy(G3) , 41 type 2 diabetes patients without maeroangiopathy(G2) and 30 nor-real control subjects(G1). Linear correlation model was used to analyze the correlation between the level of sICAM-1 and NF-κB. Results The expression level of Nuclear Factor-κB in peripheral mononuclear cell of G3 was significantly higher than that in G2 and G1(P <0.01). The concentration of plasma sICAM-1 in G3 was significantly higher than that in G2 and G1. The expression level of Nuclear Factor-κB in peripheral mononuclear cell of G2 was significantly higher than that in GI (P < 0.01). The concentration of plasma sICAM-1 in G2 was significantly higher than that in G1. The levels of plasma sICAM-1 in three groups were positive correlated with activity of NF-κB in peripher-al blood mononuclear cells(r = 0.376, 0.283, 0.302, P < 0.05). Conclusion Increased level of NF kappa-B in peripheral blood mono-nuclear might be risk factor for peripheral macroangiopathy in patients with diabetes. It may induce macroangiopathy via up-regulating sI- CAM-1 expression.
2.Study on the Content Change of Glucose and Fructose in Different Solvents Extracts of Leaves of Lonicera Hypoglauca Miq
Xinyan GUO ; Si SHI ; Ying ZHU
Journal of Zhejiang Chinese Medical University 2014;(1):73-77
[Objective]To establish a method to determine the contents of glucase and fructose in extracts of leaves of Lonicera hypoglauca Miq. using HPLC-ELSD, and apply this method to study the content change of glucose and fructose in different solvents extracts in leaves of Lonicera hypoglauca Miq. [Methods] The chromatographic separation was achieved on Lichrospher NH2 column using a mobile phase composed of a mixture of acetonitrile and water(90:10) at a flow rate of 0.8mL·min-1 and the column temperature was 25℃.The ELSD drift tube temperature was set at 70℃ and the carrying gas was N2 and the flow rate of the gas was 1.6L·min-1. [Results] Glucose and fructose from extracts of the leaves of Lonicera hypoglauca Miq. could be wel separated, and the linearity ranges of glucose and fructose were shown at the concentration of 0.5840~1.168mg·mL-1 and 0.8256~1.8576mg·mL-1, the average recovery rate of glucose and fructose were 96.88%(RSD=1.11%) and 97.55%(RSD=1.15%), the stability of glucose and fructose was 2.12%and 0.38%, and the repeatability was 1.31% and 0.24%. Among the water extract,50% alcohol extract and 95% alcohol extract,the content of the glucose and fructose in the water extract was highest,which was 2.19mg·mL and 4.10mg·mL-1, the 50% alcohol extract was second, which was 1.13mg·mL-1 and 2.12mg·mL-1, and the 95% alcohol extract was lowest, which was 0.45mg·mL-1 and 0.65mg·mL-1.[Conclusion] The method is simple, accurate and has good repeatability, and can be used to determine the contents of glucose and fructose in the extract of leaves of Lonicera hypoglauca Miq. In this batch of leaves of Lonicera hypoglauca Miq., the contents of fructose and glucose were of water extract>50%ethanol extract>95%ethanol extract.
3. The treatment of chronic eczema in mice by matrine hydrogels
Journal of International Pharmaceutical Research 2020;47(9):731-737
Objective: To prepare and characterize the matrine-loaded poloxamer hydrogels and explore their therapeutic effect on chronic eczema in mice. Methods: The matrine hydrogels were prepared with poloxamer 407 and 188 as matrix. The viscoelasticity of the matrine hydrogels was characterized by rheometer. The ear swelling and weight difference were tested, and the levels of tumor necrosis factor-α(TNF-α)and interleukin-6(IL-6)were detected by ELISA method. The histopathological change of mouse ear tissues was examined via HE-staining, and the immunohistochemical examination was performed to detect the protease-activated re-ceptor-2(PAR-2)expression in mouse ear. These assays were performed to investigate the therapeutic effect of matrine hydrogels on chronic eczema in mice. Results: The matrine hydrogels had good fluidity and spreadability, and rapidly formed a transparent, viscous uniform hydrogel at the skin temperature. Compared with the normal group, the ear weight difference and swelling degree were significantly increased(P<0.05)at the 3, 5 and 10 days after the establishment of the chronic eczema model. Compared with the model group, the ear weight difference and swelling degree were reduced significantly in the martrine hydrogel group(P<0.01), and the serum TNF-α and IL-6 level(P<0.01)and the PAR-2 expression in the chronic eczema tissue(P<0.01, P<0.05)were both significantly decreased in the martrine hydrogel group. Conclusion: Martrine hydrogels could inhibit the inflammatory infiltration of dermal layer and the epidermal layer damage caused by chronic eczema, which are expected to be a good topical gel preparation for treating chronic eczema of skin.
4. Preparation and characterization of armodafinil nanocrystals
Journal of International Pharmaceutical Research 2020;47(7):574-578
Objective: To prepare and characterize armodafinil nanocrystals, and investigate its release in vitro. Methods: Anti-solvent precipitation technology was used to prepare the armodafinil nanocrystals. The formulation and preparation process of the armodafinil nanosuspension were optimized by the orthogonal design experiment with the average particle diameter as the evaluation index. The suspension was prepared into nanocrystals by freeze-drying technology. The particle size and the polydispersity coefficient of the armodafinil nanocrystals were measured. The X-ray powder diffraction method was used to investigate the crystal form transition of the armodafinil. The dissolution behavior of the armodafinil nanocrystals and raw substances was investigated and compared with each other by the slurry method. Results: The prepared amodafinil nanocrystals had a quite uniformly distributed particle size around 100 nm. The nanocrystals appeared to be in irregular form. After amodafinil was made into nanocrystals, the solubility and dissolution were significantly improved. The crystal form of amodafinil significantly changed after nanocrystallization. Conclusion: The preparation of a small and uniformly distributed particle size of amodafinil nanocrystals could significantly improve the dissolution performance of amodafinil, which is beneficial to improving the bioavailability of insoluble drugs.
5.3-D Reconstruction of the Left Atrium in Percutanous Balloon Mitral Valvuloplasty
Tiangang ZHU ; Yougang SHUN ; Hua SI
Chinese Journal of Ultrasonography 1996;5(3):140-142,插页34
To investigate the change of the left atrial volume before and after the percutanous balloon mitral valvuloplasty(PBMV),the 3-D reconstruction of the left atrium volume gas performed in 16 patients.The left atrial volume was 135.76±54.25cm3in diastole and 83.26±31.79cm3in systole before the PBMV and 89.34±46.55m3in diastole and 55.43±18.84m3in systole after PBMV.The change of the left atrial volume before and after PBMV was significant.No significant correlation existed between left atrial volume and the left atrial pressure,left atrial volume and pulmonary artery pressure both before and after PBMV.
6.Wuling capsule played an assistant role in primary prevention of post-stroke depression: a clinical research.
Jin ZHU ; Chun-mei HU ; Si-si GUO ; Feng WANG ; Ye ZHOU ; Su-ya ZHANG
Chinese Journal of Integrated Traditional and Western Medicine 2014;34(6):676-679
OBJECTIVETo observe the primary prevention role of Wuling Capsule (WC) on poststroke depression (PSD) patients.
METHODSAcute stroke patients were recruited and randomized into 2 groups by stratification, 55 in each group. All patients received same routine treatment of cardiovascular diseases. Patients in the experimental group additionally took WC (0.33 g each pill), 3 pills per day, three times per day; while those in the control group additionally took placebos, 3 pills per day, three times per day. Two weeks consisted of one therapeutic course. The diagnosis of PSD was performed once every other week. Those in accordance with PSD diagnosis discontinued any drug therapy. Those not in accordance with PSD diagnosis continued the drug therapy for 1-12 therapeutic course(s) (in total of 6 months). If they were still not in accordance with PSD diagnosis, then they discontinued the drug therapy. The morbidity of PSD, the average time of depression occurrence, Hamilton depression rating scale (HAMD) score, and adverse reactions were observed.
RESULTSThe 1-, 3-, and 6-month morbidity of PSD was 8%, 16%, and 34% in the experimental group, while they were 19.6%, 29.4%, and 54.9% in the control group. The occurrence rate was lower in the experimental group than in the control group. Besides, there was statistical difference in the 6-month occurrence rate between the two groups (chi2 = 4.465, P < 0.05). The average time of PSD occurrence was longer in the experimental group than in the control group (14.96 +/- 8.31 weeks vs. 9.36 +/- 6.06 weeks; t=6.762, P < 0.05). The HAMD score at the PSD occurrence was 11.96 +/- 2.14 in the experimental group, lower than that of the control group (14.57 +/- 4.24), showing statistical difference (t=5.641, P < 0.05).
CONCLUSIONWC was superior to the placebos in lowering the incidence of PSD, delaying the occurrence time of PSD, attenuating the depression degree of PSD, and had certain preventive effect on the incidence of PSD.
Aged ; Capsules ; Depression ; etiology ; prevention & control ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Male ; Middle Aged ; Primary Prevention ; Stroke ; complications
9.Expressions of RhoC and MMP-2 proteins in epithelial ovarian cancer tissues and their clinical significances
Ying PAN ; Dan ZHU ; Naiwen SI ; Wenying ZHANG
Journal of Jilin University(Medicine Edition) 2006;0(06):-
Objective To study the expressions of RhoC and MMP-2 proteins in epithelial ovarian cancer and their clinical significances in order to provid the basis for assessing the biological behaviour of epithelial ovarian cancer.Methods Immunohistochemistry was used to detect the expressions of RhoC and MMP-2 proteins in 10 cases of normal ovarian tissues,12 cases of epithelial benign ovarian tumor and 91 cases of epithelial ovarian cancer,and the relationship with the clinical features was analyzed.Results The RhoC and MMP-2 proteins positive expression rates in ovarian benign tumor and ovarian normal tissues were 0 respectively; the positive expression rates of RhoC and MMP-2 proteins in epithelial ovarian cancer were 37.3% and 68.1%.The expressions of RhoC and MMP-2 proteins in ovarian cancer were significantly higher than those in ovarian benign tumor and ovarian normal tissues.The positive expression rates of RhoC and MMP-2 in moderately and poorly differentiated cancer were significantly higher than those in well differentiated cancer(P
10.Association of angiopoietins and soluble angiopoietin receptor Tie-2 with diabetic retinopathy in patients with type 2 diabetes
Qiaoying YOU ; Qiqian ZHU ; Xuwei SI ; Xingmu WANG
Chinese Journal of Endocrinology and Metabolism 2011;27(8):639-641
Angiopoietin-2 levels were 5. 80 ( 3. 83-8. 00 ) , 4. 42 ( 2. 56-5. 55 ) , and 2. 75 ( l. 40-4. 64 )ng/ml in type 2 diabetic patients with proliferative retinopathy, patients with non-proliferative retinopathy, and patients without retinopathy, respectively. Statistical significances existed between any two groups (all P <0. 01 ). Angiopoietin-1 level in patients with non-proliferative retinopathy was higher than that in patients without retinopathy [10. 57 ( 8. 99-12. 05 ) vs 9. 21 (7. 71-11.2 ) ng/ml, P<0. 05]. No difference in receptor Tie-2 was found among the 3 groups (P>0. 05 ). The results suggested that serum angiopoietin-2 level might be associated with the severity of retinopathy in type 2 diabetic patients.