Synergistic antitumor effects of HB (berberine alpha-hydroxy-beta-decanoylethyl sulfonate, houttuyn berberine) with HCPT (hydroxycamptothecine), and its correlative mechanism were studied in vitro. MTT assay was employed to determine the cytotoxicity of HB combined with HCPT in tumor cells culture in vitro, IC50 and combination index (CI value) were used to evaluate the synergistic effects. The supercoiled DNA relaxation mediated by topoisomerase I & II was measured by agarose gel electrophoresis assay, and influence of HB was detected. The results showed that HB could inhibit the proliferation of tumor cells (SGC-7901, SW1116 and SW480) in vitro, and the inhibition ratio was increased, IC50 was reduced when combining with HCPT. CI value of the two drugs was less than 1 in HepG2, SW480, SGC-7901 and SW1116 cells. The lowest value was 0.447, 0.626, 0.161 and 0.178 in these tumor cells, respectively, further indicating HB has synergistic action with HCPT on suppressing tumor proliferation. The agarose gel electrophoresis assay showed HB can inhibit topoisomerase I & II activity of SW480 cells at the concentration of 2.0-8.0 mg x L(-1). HCPT is a typical inhibitor of topoisomerase I , the synergistic action between HCPT and HB on suppressing tumor proliferation is perhaps related to the congenerous inhibition of topoisomerase.

Acute Disease ; Adult ; Female ; Humans ; Lipoprotein(a) ; blood ; Male ; Middle Aged ; Organophosphate Poisoning ; Young Adult

Female ; Humans ; Hyperkeratosis, Epidermolytic ; pathology ; Infant, Newborn

Acetylglucosaminidase ; urine ; Adult ; Biomarkers ; urine ; Clinical Enzyme Tests ; Female ; Humans ; Insecticides ; poisoning ; Kidney Diseases ; chemically induced ; urine ; Male ; Middle Aged ; Organophosphate Poisoning ; Poisoning ; urine

Adult ; Female ; Humans ; Insecticides ; poisoning ; Male ; Middle Aged ; Organophosphate Poisoning ; Poisoning ; blood ; Serum Albumin ; analysis ; Serum Globulins ; analysis

As the actual clinical reflecting of transform Chinese medicine special curative effect, Chinese medicine preparation not only satisfies the need of hospital clinic, scientific research and teaching, but also plays an important role in deepening medical and health system reform, improving people's health level and contributing to the economic growth. However, some problems about administration and approval (tending to western medicine), contraction of the scale, lack of synchronization for clinic and scientific research, and the imbalance of regional development make Chinese medicine preparation move forwards slowly in contradiction. It has not only reduced the effectiveness of the Chinese medicine preparation in hospital clinic, but also brought bad effect on modernized development of Chinese medicine preparation. Research shows that main influencing factors of status quo of Chinese medicine preparation in medical institution include imperfect laws and regulations, high cost than income, and shortage of talents in preparation research. The analysis indicated that the necessary measures to break the contradiction, improve clinical effect of Chinese medicine, and promote the modernization development of Chinese drugs preparation were as follows: government and related departments should strengthen the supporting force in policy by adjusting the examination and approval policy, speeding up dispensing use, reforming pricing system, including into medicare reimbursement, integrating advantage resources and so on; medical institution should actively carry out research and development of traditional Chinese Medicine through drawing the traditional and modern essence, reserving professional talents, and developing characteristic preparation; companies cooperate with hospitals for complementary advantages, which can rapidly transform Chinese medicine preparation into clinical practice.
Chemistry, Pharmaceutical ; economics ; methods ; trends ; China ; Drug Discovery ; economics ; trends ; Drugs, Chinese Herbal ; chemistry ; economics ; pharmacology ; Humans ; Medicine, Chinese Traditional ; economics ; trends

Objective To investigate the effect of nanotubes on rat aortic endothelium damage.Methods Wistar rats were intratracheally instilled with carbon nanotubes(CNTs) at the doses of 0,3.5 and 17.5 mg/kg,and with a carbon black negative control,or a quartz positive control.The rats were euthanized after 7 or 30 days of the single treatment,the oxidative stress(GSH,O_2~-?) was determined by using biochemical kits,the expression of sICAM-1 and sVCAM-1 in serum was determined by using ELISA kits and ICAM-1 and VCAM-1 on aortic endothelium was determined with immunohischemistry.Results The content of GSH and O_2~1?in serum increased with a dose-dependent and time-dependent manner.A up-regulated expression of sICAM-1 and sVCAM-1 in serum and ICAM-1 and VCAM-1 in the aortic endothelium was seen.No vascular damage was seen in the rat treated with carbon black,in those treated with high-dose CNTs obvious inflammation was revealed.Conclusion Carbon nanotubes exposure can induce oxidative stress which may be followed by the up-regulated expression of sICAM-1 and sVCAM-1 in serum and ICAM-1 and VCAM-1 in the aortic endothelium,and then the endothelium disfunction may occur.

BACKGROUND: Current treatmemt strategy cannot efficiently relieve or reverse the disk degeneration, and neither surgical treatment nor nonsurgical treatment has gained satisfactory long-term effect. Therefore, more and more researches have focused on the cell therapy. OBJECTIVE: To explore the present states and application prospect of cell therapy, especially stem cells for degenerative intervertebral disc repair.METHODS: A computer-based search for related articles in PubMed database published between January 2011 and January 2016 using the English keywords of stem cell, intervertebral disk degeneration. Literatures addressing cell therapy for degenerative intervertebral disc repair were selected, and the articles published lately or original researches in authoritative journals were preferred.RESULTS AND CONCLUSION: A total of 205 articles were selected firstly, and 50 eligible articles were enrolled finally in accordance with the inclusion criteria. The mixtures of stem cells and carrier are injected into the degenerative intervertebral disk, to repair or displace abnormal cells. This strategy has been accepted by many researchers, and considered as a promising treatment. However, there is little evidence about the safety of clinical treatment with cell therapy, which still needs to be explored in depth.

Objective To gain the virus like particles (VLPs) based on Trop2 targets ,which provided the basis for further in vi‐vo induced experiments and anti‐tumor vaccine studies .Methods Using molecular cloning method to constract eukaryotic expres‐sion vector of pCAGGs/Trop2 and baculovirus expression vector of pFastbac1/Trop2 ,expression product of pCAGGs/Trop2 in HeLa cells were intended to be to be anchored to the cell membrane by the methods of Immunohistochemistry ;pFastbac1/Trop2 were transformed into E .coliDH10bac isolates to gain recombinant bacmids ,which were transfected into insect cells to express re‐combinant baculovirus with Gag rBV ,then sucrose density gradient centrifugation ,Western Blot and electron microscope were per‐formed to purify and identify the Trop2 VLPs .Results Building recombinant bacmids which were transfected into insect cells to express recombinant baculovirus with Gag rBV ,gained the recombinant Virus like Particles .Conclusion Trop2 VLPs was success‐fully prepared ,which laid the foundation for the subsequent induction of humoral and cellular immune response .

Objective　To investigate the operation treatment of gallbladder carcinoma(GBC). Methods The clinical data of 132 patients with GBC from 1980 to 1999 were analysed. Results　The mean age was 55 years and the occurrence sex ratio in female/male was 1.5∶1. Gallstone was found in 80% of the patients, and 87.1% of the GBC were adenocarcinoma. Before December 1990(forward group), simple cholecystectomy were performed on 11 cases, radical cholecystectomy on 9 cases, extended radical cholecystectomy on 5 cases, palliative extra- or intra- drainge on 15 cases, surgical biopsy on 30% cases. Hospital death occurred in 4 cases, the postoperative complications occurred in 20 cases including biliary fistula in 4 cases, pancreatic fistula in 2 cases. Since January 1991(latter group), radical simple cholecystectomy were performed on 2 cases, radical cholecystectomy on 16 cases, extended radical cholecystectomy on 24 cases; palliative extra- or intra- drainge in 9 cases, surgical biopsy on 8 cases. Hospital death occurred in 1 cases; postoperative complications in 12 cases, including biliary fistula in 1 cases, pancreatic fistula in 1 cases. Radical resection rate was 35.7% in forword group, 72.6% in latter group. Conclusions　Surgical tech-nique progress and application with Peng's Multifunctional Operative Dissector can improve the resection rate of GBC. Extended redical resection is an effective and active method to treat middle or late stage GBC.