Objective To observe the effect of erythropoietin(EPO)on apoptosis and glycogen synthase kinase-3?(GSK-3?)level in newborn rats with hypoxic-ischemic brain damage(HIBD).Methods Thirty 7-day-old neonatal rats were randomly divided into 3 groups:sham-operated group,hypoxic-ischemic(HI)group and EPO group.Rats in HI group and EPO group were subjected to left common carotid artery ligation,and then they were exposed to 80 mL/L oxygen and 920 mL/L nitrogen gas in the sealed containers of 37 ℃ for up to 2.5 hours to establish HIBD models.EPO was injected intraperitoneally into the EPO group rats after operation,Solution was injected into the first 2 groups.All rats were killed at the 24 hours after operations,The apoptosis was identified and analyzed by flow cytometry.The level of GSK-3? was detected by enzyme-linked immumosorbent assay.Results The neuronal apoptosis and GSK-3? content in the cortex and hippocampus tissue in HI group were significantly higher than those in the sham-operated group(Pa

Objective To explore the effects of silybin-phosphatidylcholine compound (SPC )on lipopolysaccharide (LPS)-induced activation of nuclear factor-?B (NF-?B) and phosphorylation and degradation of inhibitors of NF-?B?(I?B?).Methods Phagocyte were collected in abdominal cavity of Kunming mousse aged 6 to 8 weeks,cultured phagocyte(2?105 mL-1) were divided into control, LPS and SPC groups randomly, phagocyte in control group were added into the same volume of 9 g/L sodium chloride.Phagocyte in LPS group were added into a single bolus of LPS(10 ?g/mL LPS) for 24 hours, phagocyte in SPC groups were preincubated with different concentration of SPC for 2 hours followed by a 24 hours incubation with 10 ?g/mL LPS. Immunocytochemistry were used to measure the contents of NF-?B, phosphorylated I?B? in phagocyte.Results The content of NF-?B p65 located in the nuclear in control group was little. The content of NF-?B p65 located in the nuclear in LPS group markly higher than that in control group(P

Azure Stains ; chemistry ; DNA, Neoplasm ; analysis ; chemistry ; Humans ; Rosaniline Dyes ; chemistry ; Staining and Labeling ; economics ; methods ; Stomach Neoplasms ; genetics ; pathology

Objective To discusses the effect of different nursing methods on anastomotic healing after low colorectal surgery. Methods 60 patient with colorectal cancer undergoing low anastomosis were randomly divided into the experimental group and the control group with 30 cases in each.The experimental group adopted modified nursing care,while the control group received routine nursing care.The defecation times and incidence of complications were observed between the two groups.Results The defecation frequency of the experimental group was less than the control group,and the incidence of rectal stimulation sign,anastomotic fistula and obstruction was less in the experimental group.Conclusions Modifed nursing methods have certain effects on preventing postoperative complications of low colorectal anastomosis.

Aim To investigate the combined effect of mangiferin and ephedrine as well as explore its underlying mechanism in mouse model of allergic asthma.Methods The mouse model of asthma was sensitized and challenged with ovalbumin(OVA).The behaviors of mice during the challenging period were observed.Continuous autonomic activities of mice after 1 h of drug treatment were monitored with the autonomic activity recorder for 14 days.The total and differential cells in peripheral blood were counted.Histological study of lung sections on airway inflammation was carried out with haematoxylin and eosin(HE) staining.The levels of ovalbumin-specific immunoglobulin E(OVA-sIgE) and(Cyclic Adenosine monophosphate) cAMP in serum were detected by enzyme-linked immunosorbent assay(ELISA).The mRNA expression of cytokines mainly produced by Th1/Th2 lymphocytes such as IFN-γ and IL-4, IL-5 were semi-quantitatively analyzed with reverse transcription polymerase chain reaction(RT-PCR).Results Combination treatment and mangiferin could reduce the aberrantly autonomic activity caused by ephedrine in mice.Compared with the model group, asthmatic symptoms in all treatment groups could be significantly relieved, the pathological changes of lung tissue were improved and airway inflammation was reduced.The effect of combined treatment was better than that of mangiferin treatment alone.Compared with the model group, the total number of white blood cells(WBC) and the eosinophils(EOS) ratio in peripheral blood in all treatment groups decreased, the level of OVA-sIgE declined and the level of cAMP increased in serum.Combination treatment could lower mRNA expressions of IL-4 and IL-5 from Th2 lymphocytes and increase the mRNA expressions of IFN-γ released by Th1 lymphocytes.Conclusions The effect of combined therapy of mangiferin and ephedrine is better than that of mangiferin treated alone, meanwhile it can reduce the side effects caused by ephedrine.The underlying mechanism is mainly associated with attenuating Th1/Th2 cytokine imbalance and increasing the level of cAMP.

Objective To investigate the effects of silybin-phosphatidylcholine compound (SPC) on H2O2-induced the production of nitric oxide (NO) and reactive oxygen species (ROS) in mouse macrophage.Methods Macrophage were collected in abdominal cavity of 6-8 week Kunming mouse,and cultured macrophage(2?108 L-1) were divided into control and SPC group randomly.Macrophage in control group were added into the same volume(0.1 mL) of 9 g/L sodium chloride.Macrophage in H2O2 group were added into a single bolus of H2O2 (1 mmol/L H2O2) for 30 min,while macrophage in SPC group were preincubated with different concentration of SPC for 2 h followed by a 30 min incubation with 1 mmol/L H2O2.Immunocytochemistry were used to measure the contents of inducible nitric-oxide synthase(iNOS),NO production was determined by Griess reactive, ROS was determined by DCFH-DA Fluorescence probe.Results The production of NO in H2O2 group markedly higher than that in control group(P

Objective To investigate the effect of neutral amino acid on preventing Parkinson disease.Methods Mice were injected with L-Valine,L-Pheylalanine,D-Valine or L-Lysine before or after paraquat administration,by which prakinsonian mouse model was constructed.The paraquat immunoreactivity was observed within nigral cell bodies.Then neurodegeneration and ?-synuclein aggregation were observed by immunohistochemistry and Western blot.Results Paraquat immunoreactivity was abolished by the administration of L-Valine,L-Pheylalanine before paraquat exposure.Pre-treatment with these two amino acids also protected the paraquat-induced loss of nigrostriatal dopaminergic cells and formation of thioflavine S-positive aggregates.In contrast, paraquat-induced toxicity was unaffected if animals were injected with these two amino acids after paraquat exposure or pre-treated with D-Valine or L-Lysine.Conclusions L-type neutral amino acids such as L Valine and L-Pheylalanine can prevent paraquat-induced neurodegeneration and a synuclein pathology through a competitive inhibition mechanism with stereospecificity in the central nervous system (CNS).Neutral amino acid could protect the dopaminergic neuron in substantia nigra and may prevent Parkinson disease.

Base on the traditional Chinese medicinal materials list that include Pharmacopoeia of the People's Republic of China, Dao-di Herbs, the common used herbs, endangered species, to analyze the key-point investigation traditional Chinese medicinal materials list was analysed. Results displayed that the variety number of traditional Chinese medicinal materials in Pharmacopoeia of the People's Republic of China is 894, the variety number of Dao-di Herbs is 495, the variety number of the common use is 326, the variety number of traditional Chinese medicinal materials from endangered species is 280, and during the third national survey of Chinese material medica resources the variety number of traditional Chinese medicinal materials that were analysed is 360. In the list of Dao-di Herbs and common used herbs over 85% are in the list of Pharmacopoeia of the People's Republic of China, in the list of the common used herbs over 80% are in the list of Dao-di Herbs, in the list of Pharmacopoeia of the People's Republic of China and Dao-di Herbs over 10% are in the list of endangered species. The key-point investigation traditional Chinese medicinal materials list includes three part, the first part includes 563 variery traditional Chinese medicinal materials that need to statistics quantity of resource by field investigation, the second part includes 457 variery that need to monitor the changing situation, the third part includes 280 variery that need to estimated endangered situation.
Animals ; China ; Conservation of Natural Resources ; economics ; Databases, Factual ; Drugs, Chinese Herbal ; analysis ; economics ; Medicine, Chinese Traditional ; economics ; instrumentation ; Plants, Medicinal ; chemistry ; growth & development

An HPLC method for the determination of geniposide concentration in mouse plasma was developed and the pharmacokinetics after intranasal administration of Xingnaojing microemulsion (XNJ-M) and mPEG2000-PLA modified Xingnaojing microemulsion (XNJ-MM) were investigated. Eighty mice were treated by XNJ-M and XNJ-MM nasally. The plasma samples were collected at different times and the drug in samples was detected by HPLC. The pharmacokinetic parameters were calculated by the software of Kinetica. The pharmacokinetic parameters of geniposide of XNJ-M were C(max) (4.36 +/- 2.69) mg x L(-1), t(max) 1 min, MRT (29.73 +/- 4.54) min, AUC (53.63 +/- 14.03) mg x L(-1) x min. The pharmacokinetic parameters of geniposide of XNJ-MM were C(max) (9.75 +/- 4.14) mg x L(-1), t(max) 1 min, MRT(22.34 +/- 2.90) min, AUC (131.87 +/- 40.13) mg x L(-1) x min. Geniposide can be absorbed into blood in a higher degree after intranasal administration with XNJ-MM compared to XNJ-M, which maybe caused by its less irritating and more absorption.
Animals ; Drugs, Chinese Herbal ; administration & dosage ; chemistry ; Emulsions ; Iridoids ; blood ; pharmacokinetics ; Lactic Acid ; chemistry ; Male ; Mice ; Polyesters ; Polyethylene Glycols ; chemistry ; Polymers ; chemistry

Based on the ecological and economic problems in Good Agriculture Practice (GAP) of Chinese material medica, we introduced the origin, concept, features and operative technology of eco-agriculture worldwide, emphasizing its modes on different biological levels of landscape, ecosystem, community, population, individual and gene in China. And on this basis, we analyzed the background and current situation of eco-agriculture of Chinese materia medica, and proposed its development ideas and key tasks, including: (1) Analysis and planning of the production pattern of Chinese material medica national wide. (2) Typical features extraction of regional agriculture of Chinese materia medica. (3) Investigation of the interaction and its mechanism between typical Chinese materia medica in each region and the micro-ecology of rhizosphere soil. (4) Study on technology of eco-agriculture of Chinese materia medica. (5) Extraction and solidification of eco-agriculture modes of Chinese materia medica. (6) Study on the theory of eco-agriculture of Chinese materia medica. Also we pointed out that GAP and eco-agriculture of Chinese material medica are both different and relative, but they are not contradictory with their own features. It is an irresistible trend to promote eco-agriculture in the GAP of Chinese material medica and coordinate ecological and economic development.
Agriculture ; methods ; standards ; trends ; China ; Drugs, Chinese Herbal ; chemistry ; pharmacology ; standards ; Ecosystem ; Humans ; Materia Medica ; chemistry ; standards ; Plants, Medicinal ; chemistry ; growth & development