1.Randomized study of Hemp seed pill plus lactulose oral solution regimen combination in the treatment of constipation induced by morphine-type drugs
Wan ZHAO ; Fen GUO ; Long CHEN ; Guang YANG
Chinese Journal of Biochemical Pharmaceutics 2016;36(9):98-100
Objective To observe the efficacy in combination with Hemp seed pill and lactulose oral solution for treating cancer pafients with constipation induced by morphine-type drugs.Methods 62 Cancer patients with constipation induced by morphine-type drugs diagnosed by pathology or cytology were collected from January 2013 to July 2016 in Suzhou BenQ hospital for this study.The patients in study group received both Hemp seed pill and lactulose oral solution, and patients in control group received lactulose oral solution only.After treatment for 3 weeks,some indexes were observed, including outcomes in the overall response rates, Karnofsky score, weight.Results The total effective rate of the study group was higher than the control group(77.4%vs 48.3%, P<0.05), the difference was statistically significant;After treatment,Karnofsky score and the percentage of patients gaining weight in study group were markedly higher than those in control group,the difference was statistically significant(P<0.05).Conclusion Hemp seed pill combined with lactulose oral solution has a good clinical efficacy in treating pafients with constipation induced by morphine-type drugs, and can improve patient's quality of life.
2.Structure characteristics of ORF2a gene of potato leafroll virus Chinese isolate.
Guo-Fen ZHAO ; He-Ling ZHANG ; Agula HASI
Chinese Journal of Biotechnology 2002;18(6):744-748
According to the genomic sequence of foreign four PLRV isolates, three pairs of specific primer were designed and synthesized. The cDNA of the ORF2a gene of PLRV-Ch was synthesized by reverse transcription and followed by Polymerase Chain Reaction amplication. The synthesized 3' and 5' cDNA fragment of the PLRV-Ch ORF2a gene were inserted into pUC19 and cloned in E. coli JM109 and were sequenced respectively. The middle cDNA fragment were directly sequenced. The homology of nucleotide sequence of PLRV-Ch compared with PLRV-S (Scotland, UK), PLRV-N(Netherlands), PLRV-A(Australia) and PLRV-C(Canada) were 98.96%, 98.70%, 94.79%, 97.5%, the homology of putative amino acid sequence are 97.97%, 97.97%, 89.69%, 95.94%. In 3' region of ORF2a gene a slippery sequence for-1 frameshift and its downstream "stem-loop" or "pseudoknot" and upstream nucleotide sequence repeats were found. Authors suggested that the nucleotide repeat sequences characteristic for PLRV could form a tight successively folded complementary double stranded regions and hairpins. This structure possibly has something to do with-1 frameshift. The amino acid sequence of C terminus region of 70 kD protein translated by motif IV has a protease characteristic motif and a helicase motif IV. The amino acid sequence of polypeptide translated by ORF2a gene undergoing frameshift has a single-stranded nucleic acid binding protein-like characteristic motif.
Amino Acid Motifs
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Luteovirus
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genetics
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Open Reading Frames
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genetics
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Protein Folding
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Reverse Transcriptase Polymerase Chain Reaction
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Solanum tuberosum
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virology
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Viral Proteins
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chemistry
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genetics
3.Early changes of retinal function in diabetic patients detected by multifocal electroretinogram
Mei, WANG ; Yu-Qing, LAN ; Yan-Fen, LIU ; Hui, GUO ; Zhao-Xia, XIA ; Zi-Li, ZHOU
International Eye Science 2005;5(4):618-620
AIM: To investigate the early changes of retinal function in diabetic patients detected by multifocal electroretinogram (mfERG).METHODS: The first-order kernel responses of mfERG were recorded from eyes of 33 normal control subjects,63 diabetic patients without retinopathy and 43 diabetic patients with background retinopathy. The response densities and implicit times of N1 and P1 were compared among the control, diabetic patients without retinopathy and diabetic patients with retinopathy.RESULTS: The response densities of N1 and P1 in central 3 rings were reduced significantly in diabetic eyes with and without retinopathy. And the implicit times of N1 and P1 were delayed significantly only in diabetic eyes with retinopathy.CONCLUSION: mfERG can detect the early changes of retinal function quantitatively in diabetic patients. Analysis of response densities and implicit times of N1 and P1 can reflect the progress of local retinal dysfunction in diabetes.
4.Analysis of clinical speciality of invasive fungai infection on 137 cases
De-Chang CHEN ; Liang ZHAO ; Xing-Yi YANG ; Zhao-Fen LIN ; Yong-Hua XU ; Chang-Xin GUO ;
Chinese Journal of Emergency Medicine 2006;0(10):-
Objective To analyze the clinical speciality of invasive fungal infection(IFI)and provide doctors with clinical evidence for early anti-fungal therapy.Method One hundred and thirty-seven patients with 91 male and 46 female,who suffered from invasive fungal infection in ICU from January.1,2000 to June 30, 2006,were enrolled in this study.The age ranged from 17 to 82 years old.Out of 137 patients with IFI,the percentage of albicans candida,glabirate candida,tropicalis candida and parapsilosis candida were 47.4%, 26.3%,20.4% and 3.6%,reseparately.The sputum,urine,blood and other drainages were collected to perform the fungal examination after three days of admission every three days.Results Of 137 patients,42 of them were complicated with hemorrhage,53 patients with IFI developed candida anthema in the chest,abdomen and extremity.,49 patients suffering from IFI had organ dysfunction.The chest image revealed that infiltration caused by IFI especially occurred in apex of lung in some patients.The pathogen analysis displayed that albicans candidiasis easily developed candida anthema,glabirate candidiasis frequently resulted in organ dysfunction,and tropicalis candida led to hemorrhage in some organs.Conclusions The clinical specialty,of IFI caused by candida included hemorrhage,candida anthema,organ dysfunction,and infiltration in apex of lung.
5.Dynamic distribution of L. interrogans in guinea pigs and pathologic changes in experimental leptospirosis.
Hong-liang YANG ; Xu-cheng JIANG ; Ping ZHU ; Wen-jun LI ; Ai-fen FU ; Ling-zi ZHAO ; Xiao-kui GUO ; Guo-ping ZHAO
Chinese Journal of Pathology 2005;34(9):597-598
Animals
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Female
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Guinea Pigs
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Kidney
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microbiology
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pathology
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Leptospira interrogans
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isolation & purification
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pathogenicity
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Leptospirosis
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microbiology
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pathology
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Liver
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microbiology
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pathology
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Lung
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microbiology
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pathology
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Male
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Time Factors
6.Success in treatment of one patient with multiple organ function injuries induced by gas explosion.
Feng-Yun NIU ; Zhao-Xia XING ; Li TIAN ; Yong-Fen ZHONG ; Ai-Ping GUO ; Xiao-Ying ZHENG ; Jian-Hua GAO
Chinese Journal of Industrial Hygiene and Occupational Diseases 2006;24(11):695-696
Adult
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Blast Injuries
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therapy
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Explosions
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Humans
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Male
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Multiple Trauma
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therapy
7.Rapid identification of the isomeric impurity in raw drug of cefepime dihydrochloride by liquid chromatography-tandem mass spectrometry.
Ling ZHAO ; Ji-fen GUO ; Ai-jun ZHANG ; Yi-min ZHAO
Acta Pharmaceutica Sinica 2005;40(4):361-364
AIMTo establish a sensitive and specific liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for the determination of isomeric impurity in raw drug material of cefepime dihydrochloride.
METHODSThe HPLC separation experiments were performed on a reversed phase C18 column, with acetonitrile-10 mmol x L(-1) ammonium acetate (5:95) as mobile phase (a flow rate of 0.8 mL x min(-1)). The analytes were determined by electrospray ionization tandem mass spectrometry in positive mode. The chromatogram and mass spectra of cefepime dihydrocloride and its isomeric impurity were obtained by LC-MS/MS.
RESULTSThe method can be used for the separation and identification of cefepime dihychrocloride and its isomeric impurity, of which the retention times were 15.28 min and 9.18 min, respectively. Based on the MS/MS spectra of their molecular ions, the different fragmentation pathways of cefepime dihydrocloride and its isomeric impurity were compared and proposed.
CONCLUSIONThe method was rapid, sensitive and specific. It can be used for the identification of the isomeric purity in raw drug material of cefepime dihydrochloride.
Cephalosporins ; chemistry ; isolation & purification ; Chromatography, Liquid ; methods ; Drug Contamination ; Isomerism ; Quality Control ; Spectrometry, Mass, Electrospray Ionization ; methods
8.Emodin inhibits dietary induced atherosclerosis by antioxidation and regulation of the sphingomyelin pathway in rabbits.
Zi-qing HEI ; He-qing HUANG ; Hong-mei TAN ; Pei-qing LIU ; Ling-zhi ZHAO ; Shao-rui CHEN ; Wen-ge HUANG ; Feng-ying CHEN ; Fen-fen GUO
Chinese Medical Journal 2006;119(10):868-870
Animals
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Antioxidants
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pharmacology
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Apoptosis
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drug effects
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Atherosclerosis
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prevention & control
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Ceramides
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analysis
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Dietary Fats
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administration & dosage
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Emodin
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pharmacology
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Lipids
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blood
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Male
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Rabbits
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Signal Transduction
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Sphingomyelin Phosphodiesterase
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metabolism
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Sphingomyelins
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metabolism
9.Hairy root induction and plant regeneration of crownvetch (Coronilla varia L.) transformed by Agrobacterium rhizogenes.
Xiao-Ling HAN ; Huai-Yu BU ; Jian-Guo HAO ; Yu-Wei ZHAO ; Jing-Fen JIA
Chinese Journal of Biotechnology 2006;22(1):107-113
An efficient system of genetic transformation and plant regeneration via somatic embryogenesis was established in crownvetch (Coronilla varia L.) by infecting the segments of cotyledons and hypocotyls of 15d-old seedlings with Agrobacterium rhizogenes strain 15834. Hairy roots were produced directly from the wounded surface of the explants or via calluses on hormone-free Murashige and Skoog (MS) medium after infection by A. rhizogenes. Transformed roots grew rapidly either on solid or liquid MS medium, and exhibited typical hairy root phenotypes. The highest transformation frequency (87.4%) was achieved by preculturing cotyledons for 2d and pre-treating the A. rhizogenes with suitable concentration of acetosyringone at logarithmic phase (OD600 = 0.8). The embryogenic calluses with 100% induction frequency were induced from hairy roots on MS medium containing 0.2mg/L 2,4-D, 0.5mg/L NAA and 0.5mg/L KT. Globular-, heart-, torpedo-, and cotyledon shaped somatic embryos were produced orderly and developed into plantlets when transferred the embryogenic calluses on MS medium supplemented with 0.5mg/L KT, 0.2mg/L IBA and 300mg/L proline. The transformed plants did not show differences in morphology except abundant lateral root branches compared to the non-transformed plants. However, the contents of 3-nitropropanic acid in hairy roots and leaves of one of 5 transformed clones were 57.68% and 58.17% in roots and leaves of untransformed plants, respectively. Opine paper electrophoresis revealed the integration and expression of TR-DNA. PCR analysis confirmed that the TL-DNA including 654 bp rol B sequence was inserted into the genome of transformed hairy roots and their regenerated plants.
Fabaceae
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genetics
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growth & development
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physiology
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Plant Roots
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genetics
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growth & development
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physiology
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Plants, Genetically Modified
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genetics
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growth & development
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Regeneration
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Rhizobium
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genetics
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Tissue Culture Techniques
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Transformation, Genetic
10.Effects of lemon peel extracts on lactate dehydrogenase and sucrase activity of Streptococcus mutans.
Xiang-yu ZHANG ; Zhi-fen YU ; Da-zhao WANG ; Ying LIU ; Mao-ding GUO
Chinese Journal of Stomatology 2010;45(12):754-758
OBJECTIVETo investigate the effect of lemon peel extracts (LPE) on the activity of lactate dehydrogenase and sucrase of Streptococcus mutans (Sm).
METHODSAfter serial dilution with trypticase soy broth (TSB) medium containing 2% glucose, LPE was used as the experimental group, and TSB without LPE as the control group. Sm was added to each group, which was then cultured for 6, 18, 24 and 48 hours in the anaerobic tank. The activity of lactate dehydrogenase(LDH) was measured with the method of oxidation of reduction coenzymeIand the pH value of the culture solution was also detected. The activity of the sucrose was determined with the method of coloration of 3,5-dinitrosalicylic acid.
RESULTSThe activity of LDH, sucrase and the changes of solution pH were decreased with the increase of the concentration of LPE (P < 0.01). The activity of LDH were declined from (0.8025 ± 0.0913) × 10(3) U/L to (0.2099 ± 0.0283) × 10(3) U/L; the activity of sucrase were declined from (-0.0107 ± 0.0003) × 10(3) U/L to (-0.0078 ± 0.0002) × 10(3) U/L; the ΔpH were declined from (2.8067 ± 0.0404) to (2.5033 ± 0.0416) (24 h results). The differences were significant between experimental groups and the control group (P < 0.01), and there were also significant differences among experimental groups with different LPE concentration (P < 0.01). The inhibitory effect of acid generation and lactate dehydrogenas' activity of Sm were positively correlated (P < 0.01).
CONCLUSIONSLPE can inhibit the activity of lactate dehydrogenase, sucrase and the acid production capacity of the Sm in a dose dependent manner. The inhibitory effects in logarithmic phase is stronger than that in other phases of growth cycle.
Citrus ; chemistry ; Glucose ; L-Lactate Dehydrogenase ; metabolism ; Lactic Acid ; Plant Extracts ; pharmacology ; Streptococcus mutans ; enzymology ; Sucrase ; metabolism