Objective To determine the effect and safety of metallic stents in the treatment of acute malignant colorectal obstruction.Methods From May,2000 to June,2003, self-expanding metallic stents were implanted in 15 patients with acute left colonic obstruction caused by malignancies. The postoperative remission and complications were observed.Results Stents were implanted successfully in 12 cases(80.0%,12/15).Of the 12 cases,the obstruction were all disappeared within 24h. No death or colonic perforation happened in this series. Stent migration and anal pain developed each in one case after stent implantation. Elective radical resection was performed on 8 cases after bowel preparation and supportive therapy; and stents reserved permanently in other 4 cases. Conclusions The implantation of self-expanding metallic stents is a safe and effective method for the temporary remission or permanent treatment of acute left-colonic or rectal obstruction caused by malignancies,it can instead of colostomy.

Cryptotanshinone (CPT), a lipid soluble active compound in Salvia miltiorrhiza, has a significant inhibitory effect on multiple malignant tumors, e. g. chronic myeloid leukemia (CML) cells and can effectively enhance imatinib's chemotherapeutic effect. However, its functional molecular mechanism remained unclear. In this experiment, the authors conducted a systematic study on the effect of CPT on the imatinib sensitivity and P-glycoprotein (P-gp) expression in CML cells by using CML cells K562 and imatinib persister K562-R. The MTT assays were performed to determine CPT's impact on the inhibitory effect of imatinib. Annexin V-FITC/PI staining analysis was used to detect the changes in the cell apoptosis rate. The active changes in apoptosis regulatory proteins Caspase-3, Caspase-9 and PARP were determined by Western blot. After the cells were pretreated with the gradient concentration of CPT, the expression of P-gp was analyzed by Western blot and flow cytometry. The changes in intracellular concentrations of imatinib were determined by HPLC analysis. The results indicated that the pretreatment with CPT significantly increased the proliferation inhibiting and apoptosis inducing effects of imatinib on K562 and K562-R cells as well as the degradation product expression of pro-apoptotic proteins Caspase-3, Caspase-9 and PARP, with a significant difference with the control group (P < 0.01). However, CPT showed no impact on the P-gp expression in CML cells and the intracellular concentrations of imatinib. In summary, the findings suggested that CPT enhanced the sensitivity of CML cells to imatinib. Its mechanism is not dependent on the inhibition in P-gp expression and the increase in intracellular drug concentration.
ATP-Binding Cassette, Sub-Family B, Member 1 ; genetics ; metabolism ; Antineoplastic Agents ; pharmacology ; Apoptosis ; drug effects ; Caspase 3 ; genetics ; metabolism ; Caspase 9 ; genetics ; metabolism ; Drug Resistance, Neoplasm ; drug effects ; Drugs, Chinese Herbal ; pharmacology ; Humans ; Imatinib Mesylate ; pharmacology ; K562 Cells ; Leukemia, Myelogenous, Chronic, BCR-ABL Positive ; drug therapy ; genetics ; metabolism ; physiopathology ; Phenanthrenes ; pharmacology

Pharmaceutical preparations, particularly as a "secret recipe" of traditional Chinese medicine in medical institutions, are the product of China's medical and health industry, and they are also an important means of competing of different medical institutions. Although pharmaceutical preparations have advantages and characteristics than institutes for drug and pharmaceutical companies, the quality standards of pharmaceutical preparations in medical institutions has not reached the desired level over the years. As we all know, the quality of pharmaceutical preparations is important to ensure the efficacy, especially under the environment of people pay more sttention on drug safety and effectiveness and contry increase emphasis on the stste of pharmaceutical preparations. In view of this, we will improve the grade, stability, and clinical efficacy of pharmaceutical preparations by the advanced equipment, testing instruments and the process dynamic quality control technology. Finally, we hope we can provide new ideas for the quality control of pharmaceutical preparations.
Drug Compounding ; standards ; Medicine, Chinese Traditional ; standards ; Quality Control

OBJECTIVESTo investigate the correlation between corpus cavernosum disruption and high-flow priapism for the understanding of high-flow priapism and its treatment.

METHODSTo report the clinical data of a case of spontaneous idiopathic high-flow priapism.

RESULTSThe diagnosis was made as right cavernosal artery disruption after angiography. The result of cavernosal blood gas analysis was normal. The penis became detumescent after the gelatin embolization treatment was performed.

CONCLUSIONSSpontaneous high-flow priapism of old people(non-ischemic) is rare in clinic. Blood gas analysis and angiography are needed to find the hemorrhage site when conservative treatment fails. Gelatin embolization or cavernosal artery ligation are usually effective in the subsequent treatment.

Angiography ; Blood Gas Analysis ; Embolization, Therapeutic ; Humans ; Male ; Middle Aged ; Penis ; blood supply ; Priapism ; diagnosis ; therapy ; Regional Blood Flow

OBJECTIVETo investigate the treatment of the displaced neck and subcapital fractures of the fifth metacarpal.

METHODSThirty-one patients with the neck and subcapital fractures of the fifth metacarpal had been operated on with antegrade intramedullary fixation between January and August 2005. There was 11 subcapital fractures (group A), and 20 neck fractures (group B). Following closed reduction of the fracture, a blunt 2.0 mm diameter K-wire, which was pre-bent into 20 degrees at the distal end, was inserted into the medullary canal of the fifth metacarpal and fixed the fractures. Postoperatively, patients in group A were immobilized in a short arm plaster splint for 4 weeks, and the ones in group B were treated with unrestricted mobilization.

RESULTSOperative time was 18 min averagely (range 5 to 30 min). Twenty-nine of 31 patients obtained anatomic reduction, and 2 patients had 2/3 apposition of bone end and no rotational deformity. Follow-up was available for all patients. The average follow-up interval was 4 months, with a range of 3 - 6 months. The head/shaft angle of the fifth metacarpal in group A was 63.4 degrees +/- 14.5 degrees preoperatively, and 15.0 degrees +/- 2.5 degrees postoperatively, and 15.4 degrees +/- 2.6 degrees in 3 months postoperatively. The difference between preoperative and postoperative angles was highly significant. The range of motion of the metacarpal joint was 89.5 degrees +/- 4.3 degrees postoperatively, which was not significantly different compared with that of uninjured side. The head/shaft angle in group B was 59.1 degrees +/- 10.0 degrees preoperatively, and 15.9 degrees +/- 2.5 degrees postoperatively, and 15.5 degrees +/- 2.8 degrees in 3 months postoperatively. The difference between preoperative and postoperative angles was highly significant. The range of motion of the metacarpal joint was 88.6 degrees +/- 3.6 degrees postoperatively, which was not significantly different compared with that of uninjured side.

CONCLUSIONSThe technique is technically easy to perform, minimally invasive, low-cost, allowing early hand mobilization, with good functional results and low morbidity, and it has been proved to be an ideal method.

Adolescent ; Adult ; Follow-Up Studies ; Fracture Fixation, Intramedullary ; methods ; Fractures, Bone ; surgery ; Humans ; Male ; Metacarpus ; injuries ; Treatment Outcome

Apogossypolone (ApoG2), a novel derivative of gossypol, has been shown to be a potent inhibitor of antiapoptotic Bcl-2 family proteins and to have antitumor activity in multiple types of cancer cells. Recent reports suggest that gossypol stimulates the generation of cellular reactive oxygen species (ROS) in leukemia and colorectal carcinoma cells; however, gossypol-mediated cell death in leukemia cells was reported to be ROS-independent. This study was conducted to clarify the effect of ApoG2-induced ROS on mitochondria and cell viability, and to further evaluate its utility as a treatment for nasopharyngeal carcinoma (NPC). We tested the photocytotoxicity of ApoG2 to the poorly differentiated NPC cell line CNE-2 using the ROS-generating TL/10 illumination system. The rapid ApoG2-induced cell death was partially reversed by the antioxidant N-acetyl-L-cysteine (NAC), but the ApoG2-induced reduction of mitochondrial membrane potential (MMP) was not reversed by NAC. In the presence of TL/10 illumination, ApoG2 generated massive amounts of singlet oxygen and was more effective in inhibiting cell growth than in the absence of illumination. We also determined the influence of light on the anti-proliferative activity of ApoG2 using a CNE-2-xenograft mouse model. ApoG2 under TL/10 illumination healed tumor wounds and suppressed tumor growth more effectively than ApoG2 treatment alone. These results indicate that the ApoG2-induced CNE-2 cell death is partly ROS-dependent. ApoG2 may be used with photodynamic therapy (PDT) to treat NPC.
Animals ; Antineoplastic Agents ; pharmacology ; Cell Death ; drug effects ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Gossypol ; analogs & derivatives ; pharmacology ; Humans ; Light ; Membrane Potential, Mitochondrial ; drug effects ; Mice ; Mice, Nude ; Nasopharyngeal Neoplasms ; metabolism ; pathology ; Neoplasm Transplantation ; Photochemotherapy ; Reactive Oxygen Species ; metabolism ; Singlet Oxygen ; metabolism ; Tumor Burden ; drug effects

This study was aimed to investigate the effect of SNS-032 (C17 H24 N4O2S2) on cell cycle, apoptosis, differentiation and self-renewal of hematopoietic stem cells (HSC) in mice. The self-renewal capability of bone marrow cells was measured by cobblestone forming cell test. The expressions of self-renewal regulation genes, cell cycle-related genes, apoptosis-related genes were measured by real-time PCR. The cell cycle status and apoptosis of HSC and HPC were detected by flow cytometry. The results showed that there was no significant difference of the frequency of HSC between SNS-032 and control group. The expressions of CDK1, CDK2, CDK7 and p27 decreased in HSC (P < 0.05) while the expressions of CDK4, CDK6, p21, p18, p19, Bcl-2, Bax, Puma, p53, Bim1, Sall4 and Notch1 showed no difference between SNS-032 group and control group (P > 0.05). The fraction of viable HSC in each phase of cell cycle remained unchanged after the treatment of SNS-032 (P > 0.05). Furthermore, there was no statistical difference in the apoptotic fractions between control and drug-treated groups (P > 0.05). It is concluded that SNS-032 induce apoptosis of cancer cells. Interestingly, SNS-032 has no significant inhibitory effect on self-renewal and differentiation of normal HSC, as well as no obvious effect inducing apoptosis of normal HSC and HPC.
Animals ; Apoptosis ; drug effects ; Apoptosis Regulatory Proteins ; metabolism ; Cell Cycle ; drug effects ; Cell Cycle Proteins ; metabolism ; Cells, Cultured ; Hematopoietic Stem Cells ; cytology ; drug effects ; Mice ; Mice, Inbred C57BL ; Oxazoles ; pharmacology ; Thiazoles ; pharmacology

OBJECTIVETo study processing method and mechanism of Calamine.

METHODThermogravimetry analysis method and nano-technology were adopted to analyze and synthesize the components in Calamine, Tetracycline was took as the comparison drug to determine the antibacterial activity of Calamine and its components.

RESULTA part of zinc carbonate in Calamine was decomposed into zinc oxide when processing, and the particle size was smaller than before. The antibacterial activity of Calamine is decided by the content and particle size of zinc oxide, and has nothing with zinc carbonate. The more content and the smaller particle size of zinc oxide, the more powerful antibacterial activity of Calamine.

CONCLUSIONThe content and the particle size of zinc oxide can be the important targets in the processing of Calamine.

Anti-Bacterial Agents ; pharmacology ; Carbonates ; chemistry ; pharmacology ; Drug Combinations ; Escherichia coli ; drug effects ; Ferric Compounds ; chemistry ; pharmacology ; Materia Medica ; chemistry ; pharmacology ; Nanostructures ; Nanotechnology ; Particle Size ; Pseudomonas aeruginosa ; drug effects ; Salmonella ; drug effects ; Staphylococcus aureus ; drug effects ; Technology, Pharmaceutical ; methods ; Tetracycline ; pharmacology ; Thermogravimetry ; Zinc Compounds ; chemistry ; pharmacology ; Zinc Oxide ; analysis ; chemistry ; pharmacology

Objective To investigate the relationship between nuclear factor kappa B(NF-κB) and matrix metalloproteinase-9 (MMP-9) mRNA in human umbilical vein endothelial cells(HUVECs) stimulated by the serum from children with coronary artery lesions of Kawasaki disease (KD).Methods HUVECs were cultured and were divided into 4 groups:normal serum group,general fever group,Non-CALs group and CALs group.Co-Immunoprecipitation (ChIP) was used to detect the relationship between NF-κB and MMP-9,and RT-PCR was used to detect the mRNA level of MMP-9.Results Compared with control groups,NF-κB p65 could bind the promoter of MMP 9 in HUVECs cultured with 10 ％ serum from KD patients with coronary artery lesions.The mRNA level of MMP 9 was also up-regulated.Conclusion NF-κB p65 can promote the transcription of MMP-9 in HUVECs induced by the serum from KD patients with coronary artery lesions.

BACKGROUND: This study aimed to determine whether modified shock index (MSI) is associated with mortality that is superior to heart rate, blood pressure, or the shock index (SI) in emergency patients.METHODS: A retrospective database review was performed on 22161 patients who presented to Peking Union Medical College Hospital Emergency Department and received intravenous fluids from January 1 to December 31, 2009. We gathered data of the patients on age, gender, vital signs, levels of consciousness, presenting complaints, and SI and MSI were calculated for all patients.RESULTS: Multivariate regression analysis was performed to determine the correlation between risk factors and outcome. There is a significant correlation between emergency patient mortality rate and patient's vital signs obtained at the triage desk (HR>120 beats/min, systolic BP<90 mmHg, diastolic BP<60 mmHg). MSI is a stronger predictor of emergency patient mortality compared to heart rate and blood pressure alone, whereas SI does not have a significant correlation with emergency patient mortality rate.CONCLUSION: MSI is a clinically significant predictor of mortality in emergency patients. It may be better than using heart rate and blood pressure alone. SI is not significantly correlated with the mortality rate of the emergency patient.