2.Evaluation of cyclodextrin inclusion of the volatile components in compound traditional Chinese medicine.
Journal of Southern Medical University 2006;26(9):1337-1340
OBJECTIVETo study the factors affecting cyclodextrin (CD) inclusion of the volatile components in compound traditional Chinese medicines and evaluate the stability of the inclusion compound.
METHODSThis study took Gengnian compound as an example to examine the factors affecting the inclusion process according to the inclusion compound utilization ratio. Orthogonal design method was employed optimize the parameters in the inclusion process. The moisture absorption rate of the beta-CD inclusion compound was determined in different humidity and Q10 was used to predict its.
RESULTSThe inclusion method, inclusion compound dosage, temperature, inclusion time, and the drying method could all obviously influence the inclusion process. The results of orthogonal design study showed that the optimal beta-CD inclusion of Gengnian compound volatile components could be achieved by adding 8-fold volume of beta-CD and stirring for 3 h at room temperature. Stability experiment showed that the humility did not significantly influence the inclusion compound, which can be stable for 1.26 years.
CONCLUSIONThis study comprehensively examines the factors affecting the inclusion process and the stability of the inclusion compound, and provides experimental basis for application and study of the inclusion technology.
Drug Combinations ; Drug Stability ; Drugs, Chinese Herbal ; chemistry ; Oils, Volatile ; analysis ; chemistry ; isolation & purification ; Technology, Pharmaceutical ; methods ; beta-Cyclodextrins ; chemistry
3.Microbubbles targeted to P-selectin for evaluating testicular ischemia-reperfusion injury in rabbits.
Fang YUAN ; En-Sheng XUE ; Zhi-Kui CHEN ; Hui-Fei GUO ; Jing-Jing GUO ; Xiu-Juan ZHANG ; Li-Wu LIN
National Journal of Andrology 2014;20(6):500-504
OBJECTIVETo explore the feasibility of evaluating complete ischemia-reperfusion injury (IRI) of the testis by contrast-enhanced ultrasonography with microbubbles (MB) targeted to P-selectin (MBp) in rabbits.
METHODSWe randomly divided 30 healthy adult rabbits into five groups of equal number (control, 0.5 h IRI, 1 h IRI, 2 h IRI, and 4 h IRI), prepared phospholipid MB and MBp, and performed contrast-enhanced ultrasonography of the bilateral testes with MB or MBp at an interval of 20 min at different times after IRI. When MB or MBp disappeared completely in the healthy testis at 4 to 5 min after intravenous injection, we recorded the power of the first frame (F-P) in the IRI testes followed by immunohistochemical staining of the testis tissue.
RESULTSCEU with MBp achieved a significantly higher F-P than that with MB in all the IRI groups (P < 0.05), which was (8.34 +/- 1.20) versus (1.87 +/- 0.25) 10(-5) AU at 2 hours, but there was no significant difference between MB and MBp in the control rabbits (0 AU, P > 0.05). Immunohistochemistry showed a significantly time-dependent increase in the expression of P-selectin in the vascular endothelial cells of the IRI testes, but not in those of the control.
CONCLUSIONContrast-enhanced ultrasonography with MBp can be used to evaluate the inflammatory reaction of testicular ischemia-reperfusion injury.
Animals ; Antibodies ; Disease Models, Animal ; Male ; Microbubbles ; P-Selectin ; immunology ; Rabbits ; Reperfusion Injury ; diagnostic imaging ; Testis ; blood supply ; Ultrasonography
4.Comparative study on bacterial species in conjunctival sac between Qiang minority and Han nationality
Wan-jiang, DONG ; Yue, ZHANG ; Zhi-rong, LIU ; Hui, CHEN ; Kui, CAO ; Hua, YU ; Guang-jin, WANG ; Yu-chan, LI
Chinese Journal of Experimental Ophthalmology 2011;29(2):165-168
Background Qiang minority is minority groups of China with the special habits and customs and living condition. So whether the spectrum of disease and bacteria spectrum in conjunctiva are similar with Han nationality is worth paying attention. Objective Present survey was to obtain the data about bacterial species in conjunctival sac in Qiang minority population with the age 40 years old and more and the compare with matched Han nationality population. Methods This survey study was performed as the standardized training and protocol. A total of 212 eyes of 106 individuals from Qiang minority in Beichuan county and 640 eyes of 320 subjects from Han nationality in Mianyang city received questionnaire survey and ophthalmological examination. The secretion of the inferior palpebral conjunctival sac was embrocated and inoculated on blood plate for 48-72 hours. The bacteria was separated and identified. This study was approved by the Ethic Committee of Sichuan Provicial People' s Hospital. Orally informed consent was obtained before the medical procedure. Results All the examinee finished the survey and examination with a good compliance. No significant difference was found in the demography between these two groups of population. The multiple bacterial positive rate in conjunctival sac was 59. 4% in Qiang minority and that of Han people was 66. 3% with a considerably difference between them (χ2 = 2. 27,P = 0. 13). The multiple bacterial species were simultaneously detected in 26.2% in Qiang minority population and 11.88% Han people, showing evidently difference (χ2 = 106. 40, P = 0. 00 ) . The positive rate of corynbaccterium in conjunctival sac of Qiang minority was statistically lower than that of Han people (20. 7% versus 45. 0% ,χ2 =31. 75 ,P = 0. 00) ,but there was no statistical difference in the positive rate of staphylococcus epidemics between two groups (χ2 = 1. 89 ,P = 0. 17). Conclusion The bacteria positive rate in conjunctiva sac is resemble in the population over 40 years in both the Qiang minority and Han nationality. The simple bacterial species is found in majority people in two groups of subjects. The positive rate of multiple bacterial strains coexistence is more in the Qiang minority. The bacterial strains is different between Qiang minority and Han nationality.
5.Associated risk factors of fatty liver in the patients with type 2 diabetes mellitus.
Qi-Kui CHEN ; Hai-Ying CHEN ; Lian-Yuan WANG ; Zhi-Yong ZENG ; Xiao-Dong ZHOU
Chinese Journal of Hepatology 2004;12(7):414-416
OBJECTIVETo analyze the associated risk factors, clinical characteristics and laboratory abnormalities of type 2 diabetes patients with fatty liver.
METHODSThe data of type 2 diabetes cases with fatty liver were collected in our hospital. 63 cases of type 2 diabetes without fatty liver were selected randomly as control during the same period. The associated variables were analyzed by using logistic regression model. The clinical data and liver function were compared between two groups.
RESULTSThe proportion of obesity and hyperlipidemia was higher in type 2 diabetes patients with fatty liver than without fatty liver. Body mass index (BMI) (OR: 4.392) was positive correlation to fatty liver in the patients with type 2 diabetes. In contrast, insulin sensitivity index (ISI) (OR: 0.000) and regular insulin treatment (OR: 0.058) were negative correlation to it. The abnormal frequencies of aspartate aminotransferase (AST, 16.0%), alanine aminotransferase (ALT, 25.2%), the ratio of AST/ALT less than 1 (52.8%) and gamma-glutamyltransferase (GGT, 31.9%) of type 2 diabetes patients with fatty liver were significantly higher than those without fatty liver (3.2%, 6.4%, 36.5% and 11.1% respectively).
CONCLUSIONObesity and insulin resistance might increase the risk of fatty liver in the patients with type 2 diabetes. Patients of type 2 diabetes with fatty liver show higher serum lipid level and more obvious damages of liver function than those without fatty liver
Adult ; Aged ; Aged, 80 and over ; Diabetes Mellitus, Type 2 ; blood ; complications ; Fatty Liver ; blood ; etiology ; Female ; Humans ; Hyperlipidemias ; blood ; complications ; Insulin Resistance ; Logistic Models ; Male ; Middle Aged ; Obesity ; blood ; complications ; Risk Factors
6.Chemical constituents of Notoseris rhombiformis.
Zhi-xin LIAO ; Ming-kui WANG ; Shu-lin PENG ; Yao-zu CHEN ; Li-sheng DING
Acta Pharmaceutica Sinica 2002;37(1):37-40
AIMTo investigate the chemical constituents from the whole plant of the endemic plant Notoseris rhombiformis Shih.
METHODSColumn chromatography was used for separation and purification, while spectral analysis was used for structure elucidation.
RESULTSEight compounds were isolated from the whole plant of this Chinese endemic plant and their structures were elucidated as notoserolide A (1), notoserolide D (2), austricin (3), jacquilenin (4), 3 beta, 14-dihydroxy-11 beta, 13-dihydrocostunolide (5), p-hydroxyphenylacetic acid (6), luteolin-7-O-beta-D-glucopyranoside (7) and daucosterol (8), respectively.
CONCLUSIONAll compounds were isolated from this plant for the first time. Among them, 2 is a new compound.
Asteraceae ; chemistry ; Lactones ; chemistry ; isolation & purification ; Molecular Structure ; Plants, Medicinal ; chemistry ; Sesquiterpenes ; chemistry ; isolation & purification ; Sitosterols ; chemistry ; isolation & purification
7.Effect of tramadol on immune responses and nociceptive thresholds in a rat model of incisional pain.
Yong-Min LIU ; Sheng-Mei ZHU ; Kui-Rong WANG ; Zhi-Ying FENG ; Qing-Lian CHEN
Journal of Zhejiang University. Science. B 2008;9(11):895-902
OBJECTIVETo evaluate the effects of tramadol on the proinflammatory responses in a rat model of incisional pain by investigating its effects on nociceptive thresholds and serum interleukin-6 (IL-6) and IL-2 levels.
METHODSForty-two male Sprague-Dawley (SD) rats scheduled for plantar incision were randomly divided into 7 groups (n=6 in each group). Rats in Group 1 receiving general anesthesia with no incision were served as control; At 30 min before skin incision, Groups 2 to approximately 5 were given 5 ml normal saline or 1, 10, and 20 mg/kg tramadol, respectively, intraperitoneally (i.p.); Group 6 received 10 mg/kg tramadol after operation; Group 7 received 10 mg/kg tramadol before incision, followed by 200 microg/kg naloxone after operation. Mechanical allodynia was measured by electronic von Frey filament to evaluate the nociceptive thresholds 1 h before incision, and 1 h and 2 h after operation. Serum IL-6 and IL-2 levels were measured by enzyme-linked immunosorbent assay (ELISA) 2 h after operation.
RESULTSMechanical thresholds decreased significantly and serum IL-6 level increased significantly after operation in Group 2 compared with control (P<0.01), and these changes were reversed respectively by tramadol in a dose-dependent manner (P<0.05 and P<0.01, respectively). IL-2 level remained unchanged after operation in Group 2, but decreased in Group 3 (P<0.05), then gradually returned to the normal level in Groups 4 and 5. The intraperitoneally injected tramadol (10 and 20 mg/kg) produced a potent and dose-dependent antinocicptive effect on the lesioned paw. The antinocicptive effects of tramadol were partially antagonized by naloxone (200 microg/kg), suggesting an additional non-opioid mechanism.
CONCLUSIONThe results suggest that tramadol could be a good choice for the treatment of pain under the conditions that immunosuppression may be particularly contraindicated.
Analgesics, Opioid ; pharmacology ; Animals ; Dose-Response Relationship, Drug ; Interleukin-2 ; biosynthesis ; blood ; Interleukin-6 ; biosynthesis ; blood ; Male ; Pain Measurement ; methods ; Pain Threshold ; drug effects ; Pain, Postoperative ; blood ; drug therapy ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Tramadol ; pharmacology
8.Serum levels of soluble Fas soluble Fas ligand and soluble IL-2 receptor in patients with coronary heart disease
Chang-Jiang GE ; Shen-Jiang HU ; Xia ZHENG ; Zhi-Kui CHEN ; Jian SUN ; Yao-Sen WU
Journal of Zhejiang University. Medical sciences 2002;31(5):337-339
OBJECTIVE: To evaluate the relationship between serum levels of soluble Fas(sFas), soluble Fas li gand(sFasL), soluble IL-2 receptor(sIL-2R) and coronary heart disease (CHD). METHODS: With enzyme-linked immunosorbent assay (ELISA) tests, sFas, sFasL and sIL-2R were measured in the sera from 30 patients with CHD and 26 subjects without CHD as controls. RESTULTS: Mean level of sFas was significantly higher in patients with CHD than in controls [(1 583.41+/-174.46)ng/L compared with (1 374.55+/-142.42)ng/L, P<0.01]. Compared with the controls, the mean level of sIL-2R was significantly higher in patients with CHD [(944.50+/-395.59)ng/L compared with (652.45+/-163.36)ng/L P<0.01]. Moreover, in patients with CHD sFas and sIL-2R were positively correlated (r=0.418 P<0.05). Whereas no such difference was found between both groups in sFasL (P<0.05). CONCLUSION: High levels of serum sFas and sIL-2R were associated with CHD, and elevation of sFas may inhibit apoptosis in activated T cells, leading to coronary events.
9.Oxaliplatin plus capecitabine as a second line chemotherapy for patients with advanced gastric cancer.
Jun QIAN ; Shu-kui QIN ; Jing-feng MEI ; Ying-xia CHEN ; Zhi-jian SHAO ; Ze-ming HE
Chinese Journal of Oncology 2004;26(12):746-748
OBJECTIVETo evaluate the effect and toxicity of oxaliplatin combined with capecitabine (Xeloda) as a second-line chemotherapy regimen for patients with advanced gastric cancer.
METHODSTwenty-four patients with advanced gastric cancer who had been treated by multiple chemotherapy regimens presenting poor responses were allotted. LX regimen (oxaliplatin 85 mg/m(2) in 2-hour infusion on D1 and D15, capecitabine 1250 mg/m(2)/d divided in two daily doses given from D1 to D14) was adopted. The cycles were repeated every 28 days. All patients received two or more cycles.
RESULTSAll 24 patients were evaluated after having received 2 to 6 cycles of chemotherapy, totally 92 cycles. The overall response rate was 29.2% (including 2 CR, 5 PR, 10 NC and 7 PD). The time to tumor progression (TTP) was 2 to 18 months (median 5 months), and duration of remission was 4 to 14 months (median 8 months). The major toxicities were bone marrow suppression and nausea/vomiting.
CONCLUSIONOxaliplatin combined with capitabine is effective as a secondary line regimen for patients with advanced gastric cancer. This protocol is active and well tolerated. Further clinical studies are warranted.
Adult ; Aged ; Antineoplastic Combined Chemotherapy Protocols ; adverse effects ; therapeutic use ; Capecitabine ; Deoxycytidine ; administration & dosage ; analogs & derivatives ; Drug Administration Schedule ; Female ; Fluorouracil ; analogs & derivatives ; Humans ; Liver Neoplasms ; drug therapy ; secondary ; Lymphatic Metastasis ; Male ; Middle Aged ; Nausea ; chemically induced ; Neoplasm Staging ; Neutropenia ; chemically induced ; Organoplatinum Compounds ; administration & dosage ; Remission Induction ; Stomach Neoplasms ; drug therapy ; pathology
10.An optoelectronic cervical cancer screening system for screening cervical cancer: comparison with cervical cytology.
Xiu-kui HE ; Xi-ping LUO ; Ling-zhi MAO ; Gui-ying CHEN ; Yun LI ; Jiang-yu ZHANG
Journal of Southern Medical University 2010;30(10):2304-2306
OBJECTIVETo study the clinical value of optoelectronic cervical cancer screening system (TruScreen, TS) in the screening of cervical cancer in comparison with cervical cytology test.
METHODSA total of 392 patients were screened by TS, Pap, TCT, and HPV using the pathological and colposcopical results as the golden standard. The sensitivity, specificity, Kappa value and the area of under ROC of each method and their combinations (parallel tests) were compared.
RESULTSThe sensitivity of TS, Pap, TCT and HPV were 32.2%, 42.2%, 74.4% and 47.8%, with specificity of 96.7%, 93.7%, 78.8% and 84.8% in detecting cervical cancer, respectively. The sensitivity of the parallel tests, namely TCT/HPV, TCT/TS, Pap/TS and HPV/TS were 65.6%, 87.8%, 82.2% and 86.7%, with the specificity of 81.1%, 74.5%, 75.8% and 67.2%, respectively. In light of the areas of under ROC, significant differences were noted between the parallel tests of TS/Pap and TS/TCT (P<0.05), but not between TCT/Pap and TCT/TS (P>0.05); significant differences were found between the parallel tests with TS and those without TS (P<0.05), but not between TS alone and the parallel tests incorporating TS (P>0.05), nor between the 4 parallel tests (P>0.05).
CONCLUSIONAs a new modality for early screening of cervical carcinoma, TS offers a means for real-time cancer detection with better diagnostic efficacy than Pap and HPV and equivalent efficacy to TCT. The combination of TS and cytological tests can further enhance the diagnostic accuracy.
Adolescent ; Adult ; Aged ; Cytodiagnosis ; Early Detection of Cancer ; methods ; Female ; Humans ; Middle Aged ; Sensitivity and Specificity ; Uterine Cervical Neoplasms ; diagnosis ; pathology ; Vaginal Smears ; Young Adult