Objective To explore the induced effects of colchicine in different concentration and times on Foeniculum vulgare polyploidy.Methods Seed germination rate and mutation rate,morphology of radicle induced mutants,chromosome number,tissue structure,and content and component of essential oil,which induced by colchicine in different concentiation and times were investigaled using the method of soaking seeds.Results The results showed that 0.13% of colchicine concentration and 24 h inducing time had the best induction on F.vulgare polyploidy.Compared to the control,the radicle of mutant was thicker,the chromosome number increased clearly,and the cell number in radicle manifolded distinctly.Among the four main components of essential oil,the contents of Dill apiol in anamorphosis radicle was a little lower than that of the control,but the contents of limonene,(E)-anethole,and camphene in anamorphosis radicle were all remarkably higher than that of the control after induced by colchicine.ConclusionThe content of main essential oil components in fennel mutant induced by colchicine is remarkably enhanced.The study provides the theoretical basis for the breeding of F.vulgare new varieties of high oil content.

Humans ; Siblings ; Forensic Medicine ; Forensic Genetics

OBJECTIVETo evaluate clinical effect and safety of floating needle therapy and duloxetine in treating patients with persistent somatoform pain disorder (PSPD).

METHODSTotally 108 PSPD patients were randomly assigned to the floating needle treatment group, the duloxetine treatment group, and the placebo treatment group, 36 in each group. Patients in the floating needle treatment group received floating needle therapy and placebo. Those in the duloxetine treatment group received duloxetine and simulated floating needle therapy. Those in the placebo treatment group received the placebo and simulated floating needle therapy. All treatment lasted for six weeks. Efficacy and adverse reactions were evaluated using Simple McGill pain scale (SF-MPQ) and Treatment Emergent Symptom Scale (TESS) before treatment and immediately after treatment, as well as at the end of 1st, 2nd, 4th, and 6th week of treatment, respectively. Hamilton Depression Scale (HAMD, 17 items), Hamilton Anxiety Scale (HAMA) were assessed before treatment and at the end of 1st, 2nd, 4th, and 6th week of treatment, respectively. Patients in the floating needle treatment group and the duloxetine treatment group with the total reducing score rate of SF-MPQ in Pain Rating index (PRI) ≥ 50% after 6 weeks' treatment were involved in the follow-up study.

RESULTS(1) Compared with the same group before treatment, SF-MPQ score, HAMD score and HAMA total scores all decreased in all the three groups at the end of 1st, 2nd, 4th, and 6th week of treatment (P < 0.05, P < 0.01). Besides , each item of SF-MPQ significantly decreased immediately after treatment in the floating needle treatment group (P < 0.01). Compared with the placebo treatment group, SF-MPQ, HAMD, and HAMA total score in the floating needle treatment group significantly decreased after 1, 2, 4, and 6 weeks of treatment (P < 0.05, P < 0.01). SF-MPQ score, HAMD score and HAMA total score in the duloxetine treatment group also significantly decreased after 2, 4, and 6 weeks of treatment (P < 0.05, P < 0.01). (2) There were 3 patients (8.3%) who had adverse reactions in the floating needle treatment group, 17 (50.0%) in the duloxetine treatment group, and 7 (21.2%) in the placebo treatment group. Compared with the placebo treatment group, the incidence of adverse reaction increased in the duloxetine treatment group (χ² = 6.04, P < 0.05). Besides, it was higher in the duloxetine treatment group than in the floating needle treatment group (χ² = 14.9, P < 0.05). (3) There were 19 patients in the floating needle treatment group and 17 patients in the duloxetine treatment group involved in the follow-up study. Compared with 6 weeks after treatment, no significant difference was observed at 3 and 6 months after treatment in the score of SF-MPQ, HAMD, and HAMA in the floating needle treatment group and the duloxetine treatment group. No significant difference was observed between the two groups (P > 0.05). There were 5 patients (29.4%) who had adverse reactions in the duloxetine treatment group, and no adverse reactions were observed in the floating needle treatment group. The adverse reaction rate was significantly different between the two groups (χ² = 4.26, P < 0.05).

CONCLUSIONSFloating needle therapy and duloxetine were effective in treatment of patients with PSPD. However, floating needle therapy could relieve pain more rapidly than duloxetine, with obviously less adverse reactions.

Acupuncture Therapy ; methods ; Analgesics ; therapeutic use ; Anxiety Disorders ; Duloxetine Hydrochloride ; therapeutic use ; Follow-Up Studies ; Humans ; Needles ; Pain ; Pain Management ; methods ; Pain Measurement ; Psychiatric Status Rating Scales ; Somatoform Disorders ; therapy ; Treatment Outcome

Objective To establish serological detection methods of human herpesvirus 8 (HHV-8).Methnds Three potent antigenic fusion proteins.K8.1,ORF65 and ORF73 C of HHV- 8 were synthesized using E.coli system.The sera were detected using lhese antigenic proteins.The positive sera were from 12 patients with Kaposi's sarcoma and 32 patients with acquired immunodeficiency syndrome-related Kaposi's sarcoma.The negative sera were from 20 patients with cutaneous tumors and children under 15 years old.Western blot and enzyme-linked immunosorbent assay (EI.ISA)were employed to determine the immunogenicity of each recombinant protein and the sensitivity and specificity of ELISA using the complex antigens.Results Three types highly purified HHV 8 specific recombinant pro teins with potent antigenicity were successfully synthesized.The sensitivity of ELISA using the above complex antigens was significantly higher than traditional immuno-flurescent assay (IFA)detecting the positive and negative sera,whieh were 81.8%,34.4%,respectively.And the specificity of ELISA was 97.9%.Conclusion K8.1,ORF65 and ORE73 C are good candidate antigens for establishing HHV-8 serological detection methods,which have better sensitivity and specificity.

Adult ; Antiviral Agents ; administration & dosage ; therapeutic use ; Drug Therapy, Combination ; Female ; Hepatitis B e Antigens ; Hepatitis B, Chronic ; drug therapy ; immunology ; Humans ; Interferon-alpha ; administration & dosage ; therapeutic use ; Male ; Nucleotides ; administration & dosage ; therapeutic use ; Polyethylene Glycols ; administration & dosage ; therapeutic use ; Recombinant Proteins ; administration & dosage ; therapeutic use ; Treatment Outcome ; Young Adult

OBJECTIVETo construct a yeast expression vector of hepatitis B virus (HBV) PreS1 gene using the Sos-recruitment system (SRS), and evaluate the effect of the expression product on the growth of the yeast cells and activation of the reporter gene.

METHODSThe coding sequence of HBV preS1 was amplified by PCR and cloned into the yeast expression plasmid pSos. The recombinant bait plasmid pSos- PreS1 was verified by sequencing before transformation into competent yeast cells. The effects of the expression product on the yeast cell growth and activation of the reporter gene were evaluated.

RESULTSThe yeast expression vector of HBV PreS1 gene was constructed successfully. The recombinant bait plasmid showed no toxic effect on yeast cdc25H cells without a self-activation of the reporter gene.

CONCLUSIONThe SRS can be used to study the proteins interacting with HBV PreS1 protein and provides a means for obtaining insight into the pathogenic mechanism of HBV.

Cloning, Molecular ; Genetic Vectors ; genetics ; Hepatitis B Surface Antigens ; biosynthesis ; genetics ; Humans ; Plasmids ; genetics ; Protein Precursors ; biosynthesis ; genetics ; Receptors, Virus ; metabolism ; Recombinant Fusion Proteins ; biosynthesis ; genetics ; Two-Hybrid System Techniques ; Yeasts ; genetics ; metabolism

OBJECTIVETo construct a tetracycline-inducible eukaryotic expression vector containing human hepatocyte growth factor (HGF) cDNA.

METHODSHuman HGF cDNA fragment was obtained by PCR from pUC-SRalpha/HGF plasmid and inserted into the restriction site between Mlu I and Sal I of the tetracycline-inducible eukaryotic expression vector pBI-L. pBI-L-HGF was constructed by DNA recombination in vitro, and was identified by restriction endonucleases digestion and sequencing.

RESULTSThe fragment of pBI-L-HGF digested with restriction endonucleases well corresponded to expectation, and the sequence of inserted HGF cDNA was correct according to the GenBank.

CONCLUSIONThe tetracycline-inducible eukaryotic expression vector of human HGF pBI-L-HGF has been constructed successfully, which allows further study of HGF gene therapy with much safety and easy manipulation.

DNA, Complementary ; genetics ; Eukaryotic Cells ; cytology ; metabolism ; Gene Expression ; drug effects ; Genetic Vectors ; genetics ; Hepatocyte Growth Factor ; biosynthesis ; genetics ; Humans ; Tetracycline ; pharmacology

The aim of the study was to look for the chemical constituents of the herb of Lysimachia foenum-graecum. The herb of Lysimachia foenum-graecum was extracted with 70% EtOH. The isolation and purification was performed with a combination of multi-column chromatography and the structure was determined by spectral analysis. The flavonoid compound was obtained and elucidated as kaempferol-7-O(4"-(E)-p-coumaroyl-)-alpha-L-rhmanopyranosyl)-3-O-beta-D-glucopyranosyl (1-->4)-alpha-L-rhmanopyranosyl (1-->2)-beta-D-glucopyranoside. It is a new flavonoid compound.
Flavonoids ; chemistry ; isolation & purification ; Glucosides ; chemistry ; isolation & purification ; Molecular Conformation ; Molecular Structure ; Plant Components, Aerial ; chemistry ; Plants, Medicinal ; chemistry ; Primulaceae ; chemistry

BACKGROUNDObstructive sleep apnea is strongly associated with obesity, particularly abdominal obesity common in centrally obese males. Previous studies have demonstrated that intra-abdominal pressure (IAP) is increased in morbid obesity, and tracheal traction forces may influence pharyngeal airway collapsibility. This study aimed to investigate that whether IAP plays a role in the mechanism of upper airway (UA) collapsibility via IAP-related caudal tracheal traction.

METHODSAn abdominal wall lifting (AWL) system and graded CO2pneumoperitoneum pressure was applied to four supine, anesthetized Guizhou miniature pigs and its effects on tracheal displacement (TD) and airflow dynamics of UA were studied. Individual run data in 3 min obtained before and after AWL and obtained before and after graded pneumoperitoneum pressure were analyzed. Differences between baseline and AWL/graded pneumoperitoneum pressure data of each pig were examined using a Student's t-test or analysis of variance.

RESULTSApplication of AWL resulted in decreased IAP and significant caudal TD. The average displacement amplitude was 0.44 mm (P < 0.001). There were three subjects showed increased tidal volume (TV) (P < 0.01) and peak inspiratory airflow (P < 0.01); however, the change of flow limitation inspiratory UA resistance (Rua) was not significant. Experimental increased IAP by pneumoperitoneum resulted in significant cranial TD. The average displacement amplitude was 1.07 mm (P < 0.001) when IAP was 25 cmH2O compared to baseline. There were three subjects showed reduced Rua while the TV increased (P < 0.01). There was one subject had decreased TV and elevated Rua (P < 0.001).

CONCLUSIONSDecreased IAP significantly increased caudal TD, and elevated IAP significantly increased cranial TD. However, the mechanism of UA collapsibility appears primarily mediated by changes in lung volume rather than tracheal traction effect. TV plays an independent role in the mechanism of UA collapsibility.

Airway Resistance ; physiology ; Animals ; Female ; Lung Volume Measurements ; Obesity, Morbid ; physiopathology ; Sleep Apnea, Obstructive ; physiopathology ; Swine ; Tidal Volume ; physiology ; Trachea ; physiology

The aim of this study is to investigate the anti-inflammatory effect of the adenosine derivative N6-(3-hydroxylaniline) adenosine (WS070117M1) on cigarette smoke plus LPS (lipopolysaccharide)-induced chronic obstructive pulmonary disease (COPD) in mice and its mechanism. COPD model was established by exposing male BALB/c mice to cigarette smoke and challenged with LPS inhalation. Supernatants of bronchoalveolar lavage fluid (BALF) were harvested and IL-1β, IL-6, IL-8 and TGF-β1 levels were measured by ELISA (enzyme-linked immunesorbent assay). The number of total white blood cells and neutrophils in bronchoalveolar lavage fluid was counted separately. Lung tissue was stained with Mayer 's hematoxylin and eosin for histopathologic examination. pAMPKa protein expression and distribution of lung tissue were analyzed by immunohistochemistry method. In vitro, levels of AMPKα phosphorylation in phorbol-12- myristate-13-acetate (PMA) differentiated THP-1 cells was detected by immunohistochemistry, IL-8 level in supernatants of cigarette smoke condensate stimulating PMA differentiated THP-1 cells was measured by ELISA. The results showed that WS070117M1 treatment significantly activated AMPKa in the lung tissue. It also resulted in down regulation of IL-1β, IL-6, IL-8 and TGF-β1 levels in bronchoalveolar lavage fluid and IL-8 level in cigarette smoke condensate stimulating PMA differentiated THP-1 cells. In addition, WS070117M1 could inhibit the recruitment of total white blood cells and neutrophils. These results suggest that WS070117M1 may alleviate the airway inflammation by activating AMPK in the lung tissue.
AMP-Activated Protein Kinases ; metabolism ; Adenosine ; analogs & derivatives ; Animals ; Bronchoalveolar Lavage Fluid ; Cell Line, Tumor ; Disease Models, Animal ; Humans ; Inflammation ; drug therapy ; Interleukin-1beta ; metabolism ; Interleukin-6 ; metabolism ; Interleukin-8 ; metabolism ; Leukocyte Count ; Lipopolysaccharides ; Male ; Mice ; Mice, Inbred BALB C ; Neutrophils ; cytology ; Pulmonary Disease, Chronic Obstructive ; drug therapy ; Smoke ; adverse effects ; Tobacco ; Transforming Growth Factor beta1 ; metabolism