Objective:To investigate the efficacy and characteristics of subarachnoid xenogenetic adrenal medullary transplants on neuropathic pain. Method: Eighty rats were assigned to 4 different groups before their right sciatic nerves were tied according to the method described by Bennet. Each rat received subarachnoidly xenogenetic medullary pieces or isolated chromaffin cells according to the groups. The basal pain thresholds to thermal and electrical stimuli were determined before nerve ligations,and the analgesiometric tests were repeated at weekly intervals following transplantation for 10 weeks. Behavioral indications of spontaneous pain were recorded concomitantly. The effects of naloxone, phentolamine and fentanyl on the antinociception of chromaffin cells were evaluated. Result:The pain thresholds to noxious thermal and electrical stimuli increased after transplantation of medullary pieces or isolated chromaffin cells subarachnoidly. The Behavioral indications of spontaneous pain and hyperalgesia to thermal and electrial were also eliminated after the transplantation. These antinociceptive effects can be reversed by naloxone and phentolamine. Conclusion:Transplanting xenogenetic chromaffin cells into subarachnoid space can reduce neuropathic pain effectively,and this antinociception is conducted via adrenoreceptors and opiate receptors.

Aim To investigate the anti-arrhythmic effect and mechanism of ?-opioid receptor during myocardial ischemia and reperfusion in rats,and to initially determine the regulation of U50488H(U50,a selective ?-opioid receptor agonist) to angiotensinⅡ(AngⅡ),endothelin(ET) and nitric oxide(NO) in rats.Methods Rats were randomly divided into 7 groups,i.e.,control group,ischemia/reperfusion group(I/R),U50488H+I/R group,PTX group(PTX,a Gi/o proteininhibitor),Glib group(glibenclamide,a K_(ATP) channel blocker),Che group(chelerythrine,a selective PKC inhibitor),and Gen group(Genistein,a Tyrosine kinase inhibitor) respectively.The arrhythmia occurrence and score in different groups were observed and counted.The contents of AngⅡ,ET and NO in plasma of rats were also examined.Results ① Compared with I/R group,the arrhythmia score of U50+I/R group was significantly decreased.The effect of pared with I/R group,the arrhythmia score of U50+I/R group was significantly decreased.The effect of glibenclamide and chelerythrine respectively,the anti-arrhythmic effects induced by U50488H in the rats during myocardial ischemia and reperfusion were significantly attenuated or even completely blocked.③ The anti-arrhythmic effects of U50488H were not significantly affected by pretreatment with genistein.④ In comparison with normal rats,the contents of AngⅡand ET in plasma of I/R group were significantly increased,but the content of NO was decreased.With the administration of U50488H,the contents of AngⅡand ET in plasma of rats in U50488H+I/R group were significantly decreased.Meantime the content of NO was increased.Conclusions ① U50488H-induced anti-arrhythmic effects in the rats with myocardial ischemia and reperfusion are mediated by ?-opioid receptor.The signaling pathway may be related with(Gi/o,) PKC,and K_(ATP) channel.② The activation of ?-opioid receptor may elicit anti-arrhythmic effect through the down-regulations of AngⅡ or ET and up-regulation of NO in plasma of rats.

OBJECTIVEEplets mismatch based on HLAMatchmaker software evaluates the clinical application of kidney transplantation.

METHODSIn 239 cases of renal transplant,merits of methods of the traditional HLA six antigen matcheing criteria, cross reaction groups standard and Eplets mismatch based on HLAMatchmaker standard were compared respectively.

RESULTSThe number of mismatchs with three methods in 239 cases, were grouped according to low-high mismatchs. The results revealed that HLAMatchmaker algorithm could significantly increase the number of low mismatchs group 54 (22.6%), compared with the HIA group 19(7.9%) and CREGs group 32 (13.4%). The comparison was discovered statistical significance among the three groups (P<0.001), so the comparison between each group was.

CONCLUSIONHLAMachmaker of donor-recipients matching, is a more efficient, time-saving and high sensitivity matching solution to allograft renal transplantation.

Adolescent ; Adult ; Aged ; Female ; Histocompatibility Testing ; methods ; Humans ; Kidney Transplantation ; Male ; Middle Aged ; Software ; Transplantation, Homologous ; Young Adult

BACKGROUND AND OBJECTIVECombined hypoxic cytotoxic drugs and chemoradiotherapy is an important mean of oncotherapy, and Tirapazamine (TPZ) is one of the most remarkable drugs. It has been shown that TPZ has a synergistic effect with radiotherapy on tumor cells, but whether TPZ would down-regulate the expression of the hypoxia-induced genes has not been reported. This study was to investigate the hypoxia-induced mRNA expressions of hypoxia inducible factor-1alpha (HIF-1alpha) and osteopontin (OPN) in human nasopharyngeal carcinoma HNE-1 and CNE-1 cells and the radiosensitization of TPZ, a hypoxia-specific drug, on HNE-1 and CNE-1 cells in vitro.

METHODSThe IC50 values of TPZ for HNE-1 and CNE-1 cells were measured using MTT assay, and the mRNA expressions of HIF-1alpha and OPN in HNE-1 and CNE-1 cells was determined using RT-PCR under aerobic and hypoxic conditions, respectively. The survival rates of HNE-1 and CNE-1 cells treated with or without TPZ at IC10 in the presence or absence of oxygen for 6 h were determined using colony formation assay following exposure to 1-6 Gy of 60Co radiation. The dose-survival curves were plotted and the values of D0, Dq and SER were calculated as a single-hit multitarget model.

RESULTSThe IC50 values of TPZ were 34.81 μmol/L and 35.02 μmol/L in HNE-1 and CNE-1 cells under aerobic condition, and 30.20 μmol/L and 28.48 μmol/L under hypoxic condition, respectively. The expressions of HIF-1alpha and OPN mRNA were reduced by TPZ in HNE-1 cells, but not in CNE-1 cells under hypoxic condition. For the HNE-1 cells, the respective values of D0 and Dq were 0.89 Gy and 0.28 Gy following normoxic irradiation versus 1.47 Gy and 0.44 Gy following hypoxic irradiation. For the CNE-1 cells, the respective values of D0 and Dq were 0.72 Gy and 0.68 Gy following normoxic irradiation versus 0.95 Gy and 0.56 Gy following hypoxic irradiation. The values of D0 and Dq for HNE-1 and CNE-1 cells treated with TPZ under hypoxic condition following irradiation were 0.66 Gy, 0.21 Gy and 0.85 Gy, 0.79 Gy, respectively.

CONCLUSIONTPZ can down-regulate hypoxia-induced expression of HIF-1alpha and OPN mRNA of HNE-1 cells and radiosensitize the HNE-1 cells but not CNE-1 cells, and act as a hypoxia modifier.

Antineoplastic Agents ; pharmacology ; Cell Hypoxia ; Cell Line, Tumor ; Cell Survival ; drug effects ; radiation effects ; Cobalt Radioisotopes ; Down-Regulation ; Humans ; Hypoxia-Inducible Factor 1, alpha Subunit ; genetics ; metabolism ; Inhibitory Concentration 50 ; Nasopharyngeal Neoplasms ; metabolism ; pathology ; Osteopontin ; genetics ; metabolism ; RNA, Messenger ; metabolism ; Radiation Tolerance ; drug effects ; Radiation-Sensitizing Agents ; pharmacology ; Triazines ; pharmacology

OBJECTIVETo look for the active fraction of ethanol extract of Genkwa Flos (EGF) induced hepatotoxicity and develop an UPLC fingerprint of the active fraction.

METHODTarget fraction of EGF induced hepatotoxicity was guided by the serum biochemical and histopathology methods. The UPLC method was applied to establish the chromatographic fingerprint. The separation was achieved on a BEH C18 column (2.1 mm x 50 mm, 1.7 microm) with a mobile phase consisting of acetonitrile and water containing 0.05% phosphate acid running gradient elution. The detection was carried out at 210 nm and the analysis was finished within 10 min.

RESULTThe chloroform phase of EGF could be responsible for the hepatotoxicity of this herb. The common mode of the UPLC fingerprint was set up under the established condition. There were 17 common peaks in fourteen batches of herbs, eight of which were identified, and the similar degrees of the fourteen batches to the common mode were between 0.890-0.999.

CONCLUSIONIt is easy to locate the chloroform extraction of EGF with hepatotoxicity. And the UPLC fingerprint was developed for the above fraction, which could provide valuable references for safe and effective clinical use of EGF.

Animals ; Asteraceae ; chemistry ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; analysis ; toxicity ; Flowers ; chemistry ; Humans ; Liver ; drug effects ; Male ; Rats ; Rats, Wistar

Antineoplastic Agents, Alkylating ; administration & dosage ; Child ; Humans ; Intravitreal Injections ; Male ; Melphalan ; administration & dosage ; Neoplasm Seeding ; Retinal Neoplasms ; drug therapy ; pathology ; Retinoblastoma ; drug therapy ; pathology ; Vitreous Body ; pathology

OBJECTIVETo optimize the formulation of immediate release tablet.

METHODThe immediate release tablet was prepared by using dry granules. The preparation was optimized by using orthogonal design which took the flow property of granules, the hardness, the disintegrating time and the dissolution rate of the tablet as indices.

RESULTThe optimized formulation contained 40% microcrystalline cellulose, 10% sodium carboxymethyl starch and 15% dextrin. The hardness disintegrating time and T50 of the tablet were 4.5 kg, 3 min, 5 min respectively.

CONCLUSIONIt is successful to prepare on immediate release tablet using the optimized formula above.

Cellulose ; Dextrins ; Drug Combinations ; Drug Compounding ; methods ; Drugs, Chinese Herbal ; administration & dosage ; isolation & purification ; Panax ; chemistry ; Plants, Medicinal ; chemistry ; Salvia miltiorrhiza ; chemistry ; Solubility ; Tablets

Breast cancer has the highest incidence rate among all women's malignant tumors worldwide.Surgery,radiotherapy and chemotherapy are three major treatments,while most patients showed adverse effects or complications during or after the treatment,including lymphedema,gastrointestinal reactions and leukopenia,which cause severe impact on patients' recovery and quality of life.Moxibustion has been used and certified to alleviate adverse effects of surgery or chemoradiotherapy for breast cancer.We have summarized literatures in recent years and suggest more systematic research in the future for the underlying mechanism.

OBJECTIVETo study the CD8+ cell noncytotoxic antiviral response (CNAR) to HIV in nosocomial HIV infected individuals, and reveal the relationship between the CNAR and CD4+ cell count.

METHODCD8+ cells from HIV-1 sero-positive individuals were separated by immunomagnetic beads and mixed with CD4+ cells at different CD8 CD4 cell input ratios (2:1, 1:1, 0.5:1 and 0.25:1). Reverse transcriptase (RT) activity of cocultured supernatant was tested and compared with negative control and the suppression rate of HIV-1 replication was measured.

RESULTThe average CD8:CD4 cell input ratios to reach 80% suppression of HIV replication in the group with CD4 < 300/microl and CD4 > 300/microl were 2.4:1 and 1.3:1, respectively (P < 0.05).

CONCLUSIONCNAR activity in HIV infected individuals is associated with CD4+ cell count. The ability to suppress HIV replication in subjects with CD4 > 300 is stronger than those with CD4 < 300.

Adult ; Aged, 80 and over ; Anti-HIV Agents ; therapeutic use ; CD4-Positive T-Lymphocytes ; drug effects ; immunology ; CD8-Positive T-Lymphocytes ; drug effects ; immunology ; Cells, Cultured ; Cross Infection ; drug therapy ; immunology ; Female ; HIV ; drug effects ; immunology ; HIV Infections ; drug therapy ; immunology ; Humans ; Male ; Middle Aged

OBJECTIVETo investigate the expression of special AT-rich sequence binding protein 1 (SATB1) mRNA in hepatocellular carcinoma (HCC) and explore its correlation to the clinicopathological features, surgical outcomes and metastasis of HCC.

METHODSThe total RNA was extracted from 102 HCC tissues and the adjacent tissues, and the expression of SATB1 mRNA was detected using quantitative real-time PCR. The correlations of SATB1 mRNA expression to the clinicopathological features, postoperative recurrence and metastasis of the tumor were analyzed.

RESULTSThe expression of SATB1 mRNA in HCC tissues was 3.27 folds higher than that in the adjacent tissues (P<0.001). The expression of SATB1 mRNA in HCC was associated with liver cirrhosis, AFP level, tumor size, tumor thrombi, histological differentiation, TNM classification, postoperative recurrence and metastasis (P<0.05), but not to the patients' gender, age, HbsAg positivity, HCV-Ab positivity, tumor number, or the presence of tumor encapsulation (P>0.05). In patients with significant high expression, high expression, and low expression of SATB1 mRNA, the postoperative recurrence rates were 82.68%, 0, and 0, with the 3-year survival rate of 0, 52.63%, and 100%, respectively.

CONCLUSIONSATB1 mRNA expression is associated with the postoperative recurrence and metastasis of HCC, and can be used as an indicator for predicting the recurrence and metastasis of HCC.

Aged ; Carcinoma, Hepatocellular ; genetics ; metabolism ; Female ; Humans ; Liver Neoplasms ; genetics ; metabolism ; Male ; Matrix Attachment Region Binding Proteins ; genetics ; metabolism ; Middle Aged ; Neoplasm Metastasis ; diagnosis ; Neoplasm Recurrence, Local ; diagnosis ; RNA, Messenger ; genetics ; metabolism ; Real-Time Polymerase Chain Reaction ; methods