Acupressure ; Acupuncture Points ; Acupuncture Therapy ; Adult ; Aged ; Aged, 80 and over ; Combined Modality Therapy ; Female ; Hiccup ; etiology ; therapy ; Humans ; Male ; Middle Aged ; Neoplasms ; complications

Adolescent ; Cough ; complications ; Fatal Outcome ; Female ; Fever ; complications ; Humans ; Pulmonary Fibrosis ; complications ; diagnosis

Adult ; Aged ; Cantharidin ; therapeutic use ; Carcinoma, Hepatocellular ; therapy ; Embolization, Therapeutic ; Female ; Humans ; Liver Neoplasms ; therapy ; Male ; Middle Aged ; Portal Vein ; Treatment Outcome

The high-copy-number plasmid pcDNA3.1+ is unstable within S almonella typhimurium. A novel plasmid pmcDNA3.1+ was constructed by removin g the promoter sequence of ampicillin resistance gene (bla gene) in plasmid pcDNA3.1+. In contrast to pcDNA3.1+, pmcDNA3.1+ was stable within Salmonel la typhimurium SL7207 in LB medium with or without ampicillin. Further experi ments showed the ?-lactamase activity of Salmonella typhimurium SL7207(pmc DNA3.1+) was apparently lowered than that of Salmonella typhimurium SL7207( pcDNA3.1+) and the high ampicillin concentration was maintained longer in LB me dium culturing Salmonella typhimurium SL7207(pmcDNA3.1+). When mice were a dministered with Salmonella typhimurium SL7207(pmcDNA3.1+) intraperitoneall y, more than 95% of Salmonella cells separated from the spleen still harbore d the plasmid pmcDNA3.1+ 7 days later; but 99% of Salmonella cells lost the plasmid pcDNA3.1+ at day 3 in mice innoculated with Salmonella typhimurium SL7207(pcDNA3.1+). By lowering the expression of bla gene, the rapid deco mposition of ampicillin in LB medium was avoided and the metabolic pressure was relieved for the host cells. This method offers a solution for the problem of t he instability of high-copy-number plasmid within Salmonella typhimurium.

In order to affirm the cardioactive components in Fuzi, we identified a group of aminoalcohol- diterpenoid alkaloids in Fuzi using ultra high-performance liquid chromatography coupled with electrospray ionization mass spectrometer (UPLC-ESI-MS) method. Among a total of forty-one isolated ingredients, thirteen major aminoalcohol-diterpenoid alkaloids were identified by comparing their retention times and MS spectra with those of the reference substances. Moreover, Fuzi samples from different places of origin and with different processing methods were examined and their components displayed a pattern of high similarity, though the relative abundance varies probably due to their different processing methods. Furthermore, the cardiac effect of each identified alkaloid was individually evaluated using the isolated bullfrog heart perfusion experiment. Among the thirteen aminoalcohol diterpenoid alkaloids tested, six of them significantly enhanced the amplitude rates. Taken together, we affirm that the cardioactive components in Fuzi are aminoalcohol-diterpenoid alkaloids, shedding light on future studies of the mechanisms and development of these cardioactive compounds.
Aconitum ; chemistry ; Alkaloids ; chemistry ; Amino Alcohols ; chemistry ; Animals ; Cardiotonic Agents ; chemistry ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; chemistry ; Heart ; drug effects ; In Vitro Techniques ; Plant Extracts ; chemistry ; Rana catesbeiana ; Spectrometry, Mass, Electrospray Ionization

Objective: To clone a coding region sequence of AP2/ERF transcription factor family from Carthamus tinctorius, and construct a plant expression vector. Methods: A gene (CtERF1) of AP2/ERF family transcription factor was cloned by RT-PCR based on the sequence of C. tinctorius transcription sequencing, the phylogenetic tree was constructed by ClustalW 1.83 software, Spe I and Xba I restriction sites were introduced to construct over-expression vector pBASTA-CtERF1 containing 35S promoter. Results: CtERF1 gene had a functional domain of a typical AP2/ERF gene encoding 297 amino acids, and contained an AP2 region speculated to be located in cytoplasm and nucleus, which was ERF subprotein. Systematic evolution analysis showed that CtERF1 gene had some homology with other plant species, among which the relationship with Populus deltoides and Panax japonicus were the closest. The pBASTA-CtERF1 plant expression vector was constructed successfully by molecular biology. Conclusion: A CtERF1 gene of C. tinctorius AP2/ERF transcription factor family was cloned and the plant expression vector pBASTA-CtERF1 was constructed successfully.

Objective: Plant expression vector of chalcone isomerase in safflower was built and its function was verified by over- expression of CHI in Arabidopsis thaliana. Methods: CHI isolated from safflower in our previous study was introduced by BamH I and EcoR I restriction sites and constructed into the over-expression vector pBASTA-CHI containing 35S promoter, transformed into A. thaliana by Flora-dip method. T2 plants of transgenic A. thaliana were detected by PCR and content of total flavones. Results: Plant expression vector containing the safflower CHI gene was built and over expressed in A. thaliana successfully. T2 plants of transgenic A. thaliana were obtained. Conclusion: PCR of transgenic T2 in A. thaliana is detected that CHI gene of safflower has been integrated into the A. thaliana genome, flavone content is determined in leaves, and the results show that the flavone in transgenetic A. thaliana is higher than that in wild type, the highest strain increases by nearly 2.3 times.

The study reports the detection of neuroprotective effect of 10 kinds of coumarin derivatives and explores their possible mechanism. MTT method was used to screen the neuroprotective effect of 10 coumarin derivatives on neurotoxic agents (Aβ25-35 and rotenone) or OGD (oxygen-glucose deprivation). A compound with better protective effect was obtained. Then the effect of this compound on neurotoxic agents on PC12 was detected by the morphological observation. Furthermore, the effect of compound 3 on microglia with lipopolysaccharide (LPS) induced inflammation was detected. And the inflammatory factor was tested. Finally, direct free radical scavenging ability was detected. Compound 3 was found to be the best compound through three neurons toxic models. Not only compound 3 ameliorated cell viability reduced by three neurons toxic models, but also significantly inhibited the production of inflammatory factor (TNF-α and IL-1β). And its free radical scavenging ability is very good, especially the effect on superoxide anion, which is comparable with vitamin C. The significant scavenging effect of compound 3 on superoxide anion might be the mechanism of the neuroprotection. Compound 3 as a potential neural cell protective agent merits further investigation.
Animals ; Coumarins ; chemistry ; Free Radical Scavengers ; chemistry ; Inflammation ; Microglia ; drug effects ; Neurons ; drug effects ; Neuroprotective Agents ; chemistry ; PC12 Cells ; Rats

Adolescent ; Adult ; Aged ; Endoscopy ; Female ; Humans ; Male ; Maxillary Sinus ; surgery ; Middle Aged ; Otorhinolaryngologic Surgical Procedures ; methods ; Young Adult

Objective To study the expression of p53,p16,PCNA protein in esophageal carcinoma and its relationship to sexual distinction,the location of disease,the biological level,the depth of invasion and lymph node metastasis.Methods 118 patients with esophageal carcinoma were included in the study,all of them were treated for the first time.p53,p16 and PCNA protein in the 118 cases of esophageal carcinoma were detected by immunohistochemical assay(SP technique). Results The positive expression of p53, p16, PCNA protein in 118 patients was 80 %(92/118),42%(50/118)and 97%(115/118),respectively.The positive expression of p53,PCNA protein were irrelated to the sexual distinction,the location of disease,the biological level,the depth of invasion and the lymph node metastasis.The loss of p16 was significantly related to the depth of invasion and the lymph node metastasis(P