Corydalis Rhizoma, the dried tuber of Corydalis yanhusuo (Papaveraceae) distributed traditionally mainly in south-eastern and now cultivated in northwestern and other district in China, is one of the commonly used and well-known traditional Chinese medicine. It has been widely used to treat spastic pain, abdominal pain, pain due to injury, and promote blood circulation. Its main chemical constituents were alkaloids, which were divided into the two types of protoberberines and aporphines. Among them, some alkaloids were found to elicit profound effects on the dopaminergic system in the central nervous system, which plays an important role in regulating nociception. In this article, the chemical composition and structure-types, new methods of qualitative and quantitative analysis as well as characteristics of biotransformation, absorption, distribution, metabolism, excretion, pharmacokinetic, and drug-drug interaction for the alkaloids were revealed. These results would greatly contribute to the establishment of bioactive material base of Corydalis Rhizoma.
Alkaloids ; chemistry ; Animals ; Corydalis ; chemistry ; Drug Interactions ; Drugs, Chinese Herbal ; chemistry ; metabolism ; pharmacokinetics ; Humans ; Medicine, Chinese Traditional ; methods ; Papaveraceae ; chemistry ; Rats ; Rhizome ; chemistry

Ribavirin is a broad-spectrum antiviral agent and glycyrrhizin has activities of anti-inflammation, immunoregulation and anti-viral infections. To enhance antiviral efficacy and weaken side-effects of ribavirin, antiviral effects of the combination of glycyrrhizin and ribavirin were studied in the present study. Firstly, a mouse model of viral pneumonia was established by inoculation of influenza H1N1 virus. Protective effects of glycyrrhizin and ribavirin used alone or in combination against H1N1 virus infection in mice were evaluated based on the survival rate, lung index and virus titer in lungs of mice. Results showed that the combination of glycyrrhizin and ribavirin significantly inhibited the lung consolidation with a 36% inhibition ratio on the lung swell of infected mice. The combination of the two drugs exhibited synergetic effects on survival of infected mice. The combination of 50 mg · kg(-1) · d(-1) glycyrrhizin and 40 mg · kg(-1) · d(-1) ribavirin resulted a 100% protection for infected mice with a synergetic value of 36, which was significantly higher than the control group and each drug alone. This combination also resulted a significant drop of lung virus titer (P < 0.01), as well as inhibition on the production of proinflammatory cytokines IL-6 (P < 0.01), TNF-α (P < 0.01) and IL-1β (P < 0.05) induced by virus infection compared to the control. The treatment of ribavirin plus glycyrrhizin was more effective in influenza A infection in mice than either compound used alone, which suggested a potential clinical value of the combination of the two agents.
Animals ; Antiviral Agents ; pharmacology ; Disease Models, Animal ; Drug Synergism ; Drug Therapy, Combination ; Glycyrrhizic Acid ; pharmacology ; Inflammation ; immunology ; Influenza A Virus, H1N1 Subtype ; drug effects ; Interleukin-1beta ; immunology ; Interleukin-6 ; immunology ; Lung ; immunology ; virology ; Mice ; Orthomyxoviridae Infections ; drug therapy ; Pneumonia, Viral ; drug therapy ; Ribavirin ; pharmacology ; Tumor Necrosis Factor-alpha ; immunology

Objective To explore the relationship between dynamic changes in ultra-micro-structural of pulmonary arteries and endogenous hydrogen sulfide in rats with left-right shunt.Methods Rats in shunt group were subjected to an abdominal aorta-inferior vena cava shunt to create an animal model of pulmonary artery structural remodeling. After 1 day, 3 days, 1 week, 4 weeks and 8 weeks of experiment, the ultra-micro-morphologic changes of pulmonary arteries of rats were observed under electronic microscope and H_2S concentration in serum was evaluated by modified sulfide electrode method.Results The changes of ultra-micro-structure of pulmonary arteries were progressively exacerbated, endothelial cells became swollen and large in size on 3 days, smooth muscular cells increased in size as well as the change of endothelial cells in 1 week, and they changed from contractile phenotype to synthetic phenotype in 4 weeks.Conclusions Shunt exhibited changes of ultra-micro-structure of pulmonary arteries are accompanied by the changes of endogenous H_2S. It is suggested that endogenous H_2S might play a protective role in changes of ultra-micro-structure of pulmonary artery.

AIM: To measure the anatomical character of nasolacrimal dust by spiral CT 3D reconstruction in children.METHODS: The length of nasolacrimal dust and the angles between nasolacrimal dust and vertical plane,horizontal plane and coronal plane in 27 children(54 eyes) and 15 adults(30 eyes) were surveyed using spiral CT 3D reconstruction. While the length of nasolacrimal dust in 7 dead children(14 eyes) body were surveyed as comparison by anatomical method. The RESULTS:were analyzed by software SPSS 13.0 statistically. RESULTS: The length of nasolacrimal dust was 10.06±0.29mm in children and 11.51±1.54mm in adults by spiral CT 3D reconstruction,as 9.95±0.31mm in dead children body by anatomical method,with significant statistical difference between that of children and adults. The angles between nasolacrimal dust and vertical plane,horizontal plane and coronal plane in children were 7.96°±1.62°,73.24°±6.75°,and 12.31°±2.03° respectively,while the corresponding angels in adults were 8.08°±0.63°,72.69°±3.85° and 12.09°±1.21°. The difference between them had no statistical meaning. CONCLUSION: The anatomical data of children nasolacrimal dust obtained from spiral CT 3D reconstruction have important guidance to the therapy of nasolacrimal dust diseases in children.

Objective To explore the present condition of endemic arsenism, the implementation of control measures and the effect of the monitored county (Tongyu County) and the monitoring spot (Baiyintuhai Village) in 2006 and 2007. Methods According to the National Survey Scheme of Endemic Arsenism, the progress of anti-arsenic water in Tongyu, and the management and running of all engineering projects and the arsenic content in water were surveyed. The patients with endemic arsenism in Tongyu were generally surveyed. The arsenic content of the improved drinking water in Tongyu and the arsenic in urine of children aged 8-12 and adults over 18 years of age were determinted. The causes of resident death in the monitoring spot from the year of 2006 and 2007 were investigated. Arsenic content of drinking water and the urine of local residents was examined with "Model AFS-930 Double-Channel Atomic Fluorescence Spectrometer". Results There were 30 endemic arsenism areas, 157 areas with high arsenic content and all population of 57 576 in Tongyu. Six areas had improved water till 2006, where 20.0% of water had improved, and six water-improving projects were all running normally, benefiting a population of 1670. Eight high arsenic areas changed water, in a rate of 5.09%. Eight water-improving projects were functioning well, benefiting a population of 4350. Until 2007, 28 areas had improved water in Tongyu, accounting for 93.33%. These 28 projects were well running, covering a population of 7980. One hundred and fouty-eight high arsenic areas had changed water, reaching a rate of 94.27%. One hundred and fouty-eight projects changedg water were running normally, benefiting a population of 46 214. In the surveyed spots, arsenic content was between 0.004 mg/L and 0.005 mg/L in 2006 and between 0.010 mg/L and 0.021 mg/L in 2007, all in the normal range to the time being. The arsenic contents in urine of the children aged 8-12 in the monitoring spots were determinted, averaging at 0.024 mg/L in 15 samples, fluctuating between 0.005 mg/L and 0.048 mg/L in 2006. The average content in urine from adults was 0.019 mg/L in 53 samples, fluctuating between 0.005 mg/L and 0.087 mg/L in 2007. The arsenic contents in urine were all in the normal range in 2006 and 2007. In 2006 14 endemic arsenism patients, all in light symptoms, had been checked out, the morbidity being 6.19%. In 2007, 17 patients who were all in light symptoms were identified in a rate of 6.94%. There was no significant difference of morbidity between the two years(χ2=0.1059, P>0.05). Two patients died, unrelating with drinking high arsenic water in 2006 and 2007. Conclusions The prevention and control measures are well implemented in Tongyu. The water-improving projects are functioning well. The condition of endemic arsenism is slight and hasn't changed so much in these two years. The arsenic contents in urine of children and adults within the normal range, showing that improving water can control the occurrence and the development of endemic arsenism.

OBJECTIVEPulmonary vascular structural remodeling induced by high pulmonary blood flow is an important pathologic basis of pulmonary hypertension with congenital heart disease of left-to-right shunt. However, the mechanism is still not clear. The present study aimed to examine the alteration of endogenous nitric oxide (NO) pathway in high pulmonary blood flow-induced pulmonary vascular structural remodeling, so as to explore the role of NO pathway in pulmonary hypertension induced by high pulmonary blood flow.

METHODSSixteen male SD rats were randomly divided into control group (n = 8) and shunting group (n = 8). Aortocaval shunting was produced for 11 weeks in shunt rats. Pulmonary artery mean pressure (mPAP) of each rat was evaluated using right cardiac catheterization. The ratio of right ventricular mass to left ventricular plus septal mass [RV/(LV + S)] was detected. Pulmonary vascular micro-and ultra-structure was examined by using a light microscope and a transmitted electronic microscope. Meanwhile, the concentration of plasma NO was measured by spectrophotometry. The expressions of endothelial NO synthase (eNOS) mRNA and protein by pulmonary arteries were detected by in situ hybridization and immunohistochemistry, respectively.

RESULTSAfter 11-week aortocaval shunting, mPAP was significantly increased [(22.5 +/- 2.6) mmHg vs. (15.8 +/- 2.8) mmHg, 1 mmHg = 0.133 kPa, t = 4.97, P < 0.01], and RV/(LV + S) was also markedly increased (0.267 +/- 0.022 vs. 0.221 +/- 0.016, t = 4.85, P < 0.01). The percentage of muscularized arteries was obviously increased in shunt rats compared with controls [(23.2 +/- 2.4)% vs. (13.5 +/- 2.1)%, t = 7.82, P < 0.01], and relative medial thickness of pulmonary arteries was obviously increased in shunt rats [median pulmonary artery: (7.76 +/- 0.56)% vs. (4.82 +/- 1.03)%, t = 6.23, P < 0.01; small pulmonary artery: (11.94 +/- 0.66)% vs. (6.91 +/- 0.53)%, t = 14.96, P < 0.01]. Ultrastructural changes, such as hyperplasia and degeneration of endothelial cells, irregularity of internal elastic laminar and hypertrophy and the increased number of synthetic phenotype of smooth muscle cells, were found in intrapulmonary arteries of shunt rats. Meanwhile, plasma NO concentration was increased [(30.2 +/- 7.9) micromol/L vs (19.7 +/- 5.7) micromol/L, t = 3.05, P < 0.01) and eNOS mRNA and protein expressions by pulmonary arteries were significantly augmented in rats of shunting group.

CONCLUSIONThe upregulation of eNOS/NO might be an adaptive response of pulmonary circulation to an increased blood flow in the development of pulmonary hypertension and pulmonary vascular structural remodeling.

Animals ; Blood Flow Velocity ; Hypertension, Pulmonary ; physiopathology ; Immunohistochemistry ; In Situ Hybridization ; Male ; Nitric Oxide ; blood ; Nitric Oxide Synthase ; blood ; genetics ; Nitric Oxide Synthase Type III ; Pulmonary Artery ; physiopathology ; RNA, Messenger ; genetics ; metabolism ; Rats ; Rats, Sprague-Dawley

OBJECTIVETo isolate and identify the chemical constitutents in roots of Jasminum sambac.

METHODThe compounds were isolated by means of chromatography and the structures were identified on the basis of physical and spectral data.

RESULTDotriacontanoic acid, dotriacontanol, oleanolic acid, daucosterol and hesperidin were elucidated.

CONCLUSIONAll compounds were found in this plant for the first time.

Hesperidin ; chemistry ; isolation & purification ; Jasminum ; chemistry ; Oleanolic Acid ; chemistry ; isolation & purification ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Sitosterols ; chemistry ; isolation & purification

OBJECTIVETo study the chemical constituents from the dried and nearly ripe fruits of Evodia (Euodia) rutaecarpa.

METHODThe compounds were separated and purified by solvent and chromatographic methods. Their structures were identified by spectroscopic techniques.

RESULTFifteen compounds were separated from the normal butanol extracts of the 70% aqueous ethanol extract of the dried and nearly ripe fruits of E. rutaecarpa. Among of them, four compounds were reported in the essay and identified as diosmetin-7-O-beta-D-glucopyranoside (1), isorhamnetin-3-O-rutinoside (2), diosmin (3) and chrysoeriol-7-O-rutinoside (4).

CONCLUSIONCompounds 1, 3 and 4 were separated from the dried and nearly ripe fruits of E. rutaecarpa for the first time.

Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Evodia ; chemistry ; Flavonoids ; chemistry ; isolation & purification ; Fruit ; chemistry ; Glycosides ; chemistry ; isolation & purification ; Molecular Structure

AIMTo study the antitumor peptide components in the stems and leaves of mistletoe (Viscum coloratum (Kom.) Nakai), the primary structure of the novel peptide was elucidated.

METHODSCation exchange, gel filtration and HPLC were employed for isolation and purification. Matrix Assisted Laser Desorption Ionization-Time of Flight-Mass Spectrometry was used to determine the mass. The complete amino acid sequence of the novel peptide was obtained by Edman degradation combined with enzyme digestion. The antitumor activity of the peptide in vitro was studied with MTT method.

RESULTSThe primary stucture of the peptide named as viscotoxin B2 is KSCCKNTTGRNIYNTCRFAGGSRERCAKLSGCKIISASTCPSDYPK. The IC50 value of viscotoxin B2 on the Rat Osteoblast-like Sarcoma 17/2.8 cells in vitro is 1.6 mg x L(-1).

CONCLUSIONViscotoxin B2 in V. coloratum, which has high similarity with viscotoxins from V. album, showed antitumor activity.

Amino Acid Sequence ; Animals ; Antineoplastic Agents, Phytogenic ; chemistry ; isolation & purification ; pharmacology ; Bone Neoplasms ; pathology ; Inhibitory Concentration 50 ; Molecular Sequence Data ; Molecular Weight ; Osteosarcoma ; pathology ; Peptides ; chemistry ; isolation & purification ; pharmacology ; Plant Leaves ; chemistry ; Plant Proteins ; chemistry ; isolation & purification ; pharmacology ; Plant Stems ; chemistry ; Plants, Medicinal ; chemistry ; Rats ; Tumor Cells, Cultured ; drug effects ; Viscum ; chemistry

AIMIn order to seek the marks of the genes, the relation between the influence of endurance training on aerobic ability and ACE Gene I/D Polymorphisms were studied.

METHODS102 army recruits of Han nationality from North China for an 18 week en durance training of 5000m distance. Their VO2(max), VT and the left ventricular structure and function were measured before and after the training. We also tested their ACE Gene I/D Polymorphisms with PCR-AFLP method.

RESULTSThe compliance of VO2(max), VT and left ventricular structure and function had improved after the training; the deltaVO2(max) of ID and II type was obviously higher than that of DD type (P < 0.05); there was obviously diference of deltaVO2(VT) in different ACE genotype (P < 0.05), the deltaVO2(VT) of type II was obviously higher than that of DD type (P < 0.05).

CONCLUSIONI allele has obviously hereditary advantage on the sensitivity to aerobic training in VO2(max) and VT, and type II has relation on the sensitivity to aerobic training in VT; there is no relation between I/D polymorphism and the sensitivity to aerobic training on the structure and function of left ventricle.

Adolescent ; Asian Continental Ancestry Group ; genetics ; China ; Humans ; Male ; Peptidyl-Dipeptidase A ; genetics ; Physical Endurance ; genetics ; Polymorphism, Genetic ; genetics ; Ventricular Function, Left ; physiology ; Young Adult