Absorbable Implants ; Adult ; Aged ; Humans ; Male ; Middle Aged ; Pneumothorax ; etiology ; surgery ; Polyglycolic Acid ; Silicosis ; complications ; surgery ; Surgical Sponges

Triterpenes, which have large application potential in the treatment of cancer, are the main active components of genuine medicinal material Alisma orientale (Sam.) Juzep. Farnesyl pyrophosphate synthase (FPPS) is one of the important rate-limiting enzymes in the synthetic pathway of triterpenes. In this study the FPPS full length cDNA of the A. orientale, was cloned via homology-based cloning approach and rapid amplification of cDNA ends (RACE). The full length of the FPPS cDNA was 1 531 bp (accession no. HQ724508), which contained a full 1 032 bp ORF that encoded 343 amino acids. The deduced protein sequence exhibited five conserved motifs, two of which is riched of Asp (DDXXD). The result of real-time quantitative PCR (QRT-PCR) showed that FPPS gene was expressed in different organs of A. orientale. The expression increased from October to the first ten-day period of December, and then decreased. The FPPS gene expression was higher in leaves but lower in leafstalk, tuber and root. HPLC analysis of active components 23-acetyl-alismol B of A. orientale. during different periods indicated that its change trend should be consistent with FPPS gene expression. It can be primarily deduced that FPPS gene should be an important control point in the synthetic pathway of Alisma terpenes. This study may facilitate the quality of medicinal plants through gene engineering in the future.

In order to identify Cimicifugae Rhizoma from its adulterants and to ensure its safe use, the internal transcribed spacer 2 (ITS2) sequence of Cimicifugae Rhizoma and its adulterants were amplified and bidirectionally sequenced by DNA barcoding technology. Sequence assembly and consensus sequence generation were performed by the CodonCode Aligner V3.7.1. The genetic distances were computed by MEGA 5.0. Identification analyses were performed using neighbor-joining (NJ) methods. The length of ITS2 sequence of the three origin plants of Cimicifugae Rhizoma include Cimicifuga heracleifolia, C. foetida, C. dahurica was 217, 219 and 219 bp, respectively. Their intraspecific genetic distance was much lower than the interspecific genetic distance with their closely related species. The NJ tree of ITS2 indicated that the three origin plants of Cimicifugae Rhizoma formed a monophyletic clade, Cimicifugae Rhizoma and its adulterants could be distinguished clearly. The authors proposed that ITS2 sequence was suitable for the authentication of Cimicifugae Rhizoma and its adulterants.
Base Sequence ; China ; Cimicifuga ; classification ; genetics ; DNA Barcoding, Taxonomic ; methods ; DNA, Plant ; genetics ; DNA, Ribosomal Spacer ; genetics ; Drug Contamination ; prevention & control ; Drugs, Chinese Herbal ; chemistry ; classification ; Molecular Sequence Data ; Phylogeny ; Quality Control ; Rhizome ; classification ; genetics

A self-cleaving hammerhead ribozyme gene containing a 14nt target sequence of ASSVd at the 3' end of hammerhead ribozyme was synthesized, amplified and cloned at the Xho I-Hind III site of pGEM7Zf(+). The ends produced by Xho I or Sal I can link together, thus the recognition sites of both enzymes vanish and can't be cut by either one. We used this property to get the recombinant plasmid bearing 2, 4, 6, 8, 10 and 12 copies of self-cleavable ribozyme respectively after successively sub-cloning five times. Linearized recombinat plasmid model catalyzed by T7 RNA polymerase was transcribed in vitro. The multimeric ribozyme molecules efficiently self-cleaved via cis-acting to release many ribozyme molecules It indicates that the concentration of ribozyme transcripts has been enhanced during transcription. Trans-cleavage reaction was carried out by incubating monomeric and multimeric ribozymes with same mol concentration and 32P labeled target ASSVd. Both ribozymes and target transcripts were mixed in 1:1 ratio. Autoradiograms showed the transcripts of multimeric ribozyme were substantially more effective against the ASSVd target RNA than the monomeric ribozymes. We confer that the multimeric self-clevable ribozyme is likely to provide more valuable application in vivo.
Malus ; virology ; RNA, Catalytic ; chemistry ; genetics ; metabolism ; RNA, Viral ; metabolism ; Viroids ; metabolism

OBJECTIVETo study the chemical constituents in root of Phlomis medicinalis.

METHODThe compounds were isolated and repeatedly purified on macroporous resin, silica gel column chromatography, TLC and Prep-HPLC and the structures were elucidated by physico-chemical properties and NMR spectra.

RESULTEight compounds were obtained and elucidated as 5-Hydroxy-7-methoxy-4, 6-dimethylphthalide (1), 4-hydroxymethyl-2-furaldehyde (2) and six iridoid glucosides: 6-O-acetyl-shanzhiside methyl ester (3), 8-O-acetyl-shanzhiside methyl ester (4), shanzhiside methyl ester (5), sesamoside (6), phloyoside II (7) and dehydropentstemoside (8).

CONCLUSIONAll the compounds were isolated from the plant for the first time and 1 and 3 were obtained from the plants of Phlomis for the first time.

Benzofurans ; chemistry ; isolation & purification ; Glucosides ; chemistry ; isolation & purification ; Phlomis ; chemistry ; Plant Extracts ; chemistry ; isolation & purification ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Pyrans ; chemistry ; isolation & purification ; Terpenes ; chemistry ; isolation & purification

Glucose ; Humans ; Hypothalamo-Hypophyseal System ; Lycium ; Pituitary-Adrenal System ; Resistance Training

Objective The detection of malignant lymphoma with invasion in liver and spleen using PET/CT has not been well documented in the literature. This study aimed to investigate the usefulness of PET/CT in this regard and to compare it with plain CT. Methods Forty-one pathologically confirmed malignant lymphoma patients with liver and spleen invasion were recruited into this study. Among all patients, there were 38 non-Hodgkin's lymphoma (NHL), 2 Hodgkin's lymphoma (HL) and 1 gastric mucosa associated lymphoma. PET/CT imaging was recorded 1h after injection of 296～444 MBq 18F-fluorodeoxyglucose (FDG). Results (1) There were 30(30/41) patients with liver invasion, including hepatic nodules, mass and portal nodes. The mass was large to invade surrounding liver parenchyma. (2) There were 23(23/41) patients with spleen invasion. The spleen was enlarged and demonstrated diffused hyper-metabolism. (3) Other invasion included: lung (n=13), cortical bone and marrow (n=12), stomach (n=9), pleural (n=6), and subcutaneous soft tissue (n=5) and so on. Conclusion PET/CT could accurately diagnose the invasion in liver and spleen of malignant lymphoma, which was of potential role on the diagnosis and staging of lymphoma.

Objective To explore the effect of isochronous health education for family on improving the swallowing ability of stroke patients with dysphagia. Methods 90 patients were divided into the observation group and the control group using the lottery method, with 45 cases in each group. The control group received the routine therapy and the health edcuation, while the observation group was carried out the isochronous health education for family on the above-mentioned basis. The swallowing ability of patients was examined at admission and 8 weeks after admission, and the occurrence rate of complications, the satisfaction degree and the average hospitalized day were compared. Results The difference of swallowing ability when admission had no obviously statistical meaning. The swallowing ability of the observation group was higher than that in the control group after 8 weeks. The occurrence rate of pulmonary infection was lower than that in the control group, while the satisfaction degree and the average hospitalized day were lower than those in the control group. Conclusions Carrying out the isochronous health education for family on swallowing ability of stroke patients with dysphagia can improve the patients' swallowing ability, reduce the occurrence rate of complications, and shorten the hospitalized days.

Objective To evaluate the application of spacer oligonucleotide typing (Spoligotyping) and mycobaeterial interspersed repetitive unit-variable-number tandem repeat (MIRU-VNTR) analysis in the molecular-epidemiological study of tuberculosis and to discuss the characteristics of pediatric Mycobacterium (M.) tuberculosis strains in Chongqing. Methods M. tuberculosis strains isolated and typed by Spoligotyping and MIRU-VNTR respectively, from the children patients in Chongqing and to compare the results from both methods, epidemiologically. Results By means of Spoligotyping, 210 clinical isolates were divided into 2 gene groups, displaying 44 genotypes. Among them, the biggest group was M. tuberculosis Beijing family, including 130 strains (61.90%) ,using the Spoligotyping. From the results of MIRU-VNTR, 24 loci showed different polymorphism and the HGI of different loci set (12 old loci, 15 basic loci and 24-loci set) increased accordingly. The subtle difference in HGI was originated from one locus ETR-B, which was included in the 24-locus system. The diversity of each loci and MIRU-VNTR set for non-Beijing genotype strains was higher than that of the Beijing genotype strains. Conclusion In this study, it was preliminarily confirmed the existence of high polymorphism of M. tuberculosis while the Beijing Family was the main genotype and main prevalent strain in children of Chongqing area. Spoligotyping prior to 15-locus with ETR-B combination seemed more suitable for the massive epidemiological investigation of pediatric tuberculosis patients.