This paper is aim to investigate the pharmacokinetics and absolute bioavailability of neoline in Beagle dogs, and provide a theoretical basis for further study. Ethyl acetate was used for liquid-liquid extracting after 10% ammonia alkalizing. The method of UPLC-Q-TOF-MS was established for the determination of neoline plasma concentrations. Beagle dogs were orally or intravenously administered with neoline for pharmacokinetic and absolute bioavailability study. Good linear relationship of neoline was found over the range of 0.1-4 mg x L(-1) (R2 = 0.9982) and 2-100 microg x L(-1) (R2 = 0.9945). Intra-and inter-day precision, expressed as the relativestandard (RSD) were less than 5.0%. Accuracy, expressed as the relative error (RE) was within 90.0%-115%. The recovery of neoline in dog plasma was more than 80%. After 6 mg x kg(-1) for ig and 1 mg x kg(-1) for iv administration of neoline, the main pharmacokinetic parameters were analyzed with Winnonlin software. t(1/2) were (313.88 +/- 63.18), (236.33 +/- 229.84) min, and AUC(0-infinity) were (58,027.40 +/- 14,132.69), (473,578.02 +/- 82,333.08) min x microg x L(-1) for ig and iv administration respectively. The absolute bioavail ability was (73.15 +/- 10.29) %. The method of UPLC-Q-TOF-MS described in the report was sensitive, reliable and specific, and suitable for pharmacokinetic study of neoline in Beagle dog. The high absolute bioavailability of neoline in dog suggested good absorption of neline which was worth of further investigation.
Aconitine ; analogs & derivatives ; chemistry ; pharmacokinetics ; Animals ; Biological Availability ; Dogs ; Drug Stability ; Female ; Male

Objective To evaluate the applicability and security of transpancreatic precut sphincterotomy vs double guidewire technique for cannulation in difficult bile duct cannulation in endoscopic retrograde eholangiopancreatography (ERCP). Methods Retrospective analysis of 158 cases difficult bile duct cannulation in ERCP from January 2012 to January 2014, according to the intubation tube method, we divided all the cases into 3 groups, transpancreatic precut sphincterotomy group (group A); double guide wire technique group (group B); single guide wire technique group (group C). Then compare the intubation success rate and the incidence of complications among the 3 groups. Results 54 of 58 patients in group A intubation successful, the success rate is 93.1%, 50 of 56 patients in group B intubation successful, the success rate is 89.3%, 26 of 44 patients in group C intubation successful, the success rate is 59.1%, there was no significant difference between group A and B(P > 0.05), group A and group C, group B and C have significant difference (P < 0.05). In group A, 4 cases were complicated with acute pancreatitis, hemorrhage in 6 cases, infection in 2 cases, the complication rate is 20.7%; In group B, 5 cases were complicated with postoperative pancreatitis, 4 cases of infection, incidence of complications is 16.1%; 7 patients were complicated with pancreatitis in group C, hemorrhage in 2 cases, infection in 4 cases, complication rates is 29.5%, 3 groups were no perforation occurred.The complication rate of group B is lower than in group A, but no significant difference (P > 0.05), group A and group C, B and C complication rates had significant difference (P < 0.05). Conclusions When selective bile duct intubation is difficulty and guide wire thread into the pancreatic duct, continue to single guide wire have low intubation success rate and higher incidence of complications,transpancreatic precut sphincterotomy and double guide wire technique can effectively improve the success rate of intubation, and complication rates are relatively low, no significant difference between the two.

Objective To investigate the efficacy of skin scraping plus movable cupping in treating neck-shoulder syndrome. Method One hundred and eighty patients with neck-shoulder syndrome were randomly allocated to treatment and control groups. The treatment group received skin scraping plus movable cupping and the control group, acupuncture. Result The total efficacy rate was 88.8% in the treatment group and 77.5% in the control group; there was a statistically significant difference between the two groups (P<0.05). Conclusion Skin scraping plus movable cupping has a good therapeutic effect on neck-shoulder syndrome.

Objective To observe the clinical efficacy of heat-sensitive moxibustion plus point-toward-point needling in treating poststroke strephenopodia.Method Eighty patients with poststroke strephenopodia were randomized into a treatment group intervened by heat-sensitive moxibustion plus point-toward-point needling and a control group intervened by rehabilitation, 40 cases in each group. In addition to the basic treatment, the treatment group was given heat-sensitive moxibustion plus point-toward-point needling, and the control group was given rehabilitation treatment. Holden's Functional Ambulation Classification (FAC), Fugl-Meyer Assessment (FMA) of the lower-limb motor function, and Tinetti Gait Assessment (TGA) were adopted for evaluation of the two groups, and the clinical efficacies were compared.ResultThe effective rate was 90.0% in the treatment group versus 77.5% in the control group, and the difference was statistically significant (P<0.05); after the treatment,there was a significant difference in comparing the Holden's FAC between the two groups (P<0.05); the FMA score changed significantly after the treatment in both groups (P<0.05), and there was a significant difference in comparing the FMA score between thetwo groups after the treatment (P<0.05); the TGA score changed significantly after the intervention in both groups (P<0.05), and there was a significant difference in comparing the TGA score between the two groups after the intervention (P<0.05).ConclusionHeat-sensitive moxibustion plus point-toward-point needling can produce a significant efficacy in treating poststroke strephenopodia, as it can enhance the effective rate and improve the lower-limb motor function.

OBJECTIVETo construct DNA methyltransferase 1 (DNMT1) low expression 16HBE cell line and observe the variation of cell cycle and global genomic DNA methylation.

METHODSThe method of Lenti-virus induced RNA interference was applied to introduce four different shRNA fragment into 16HBE cells. Flow cytometry and 5-mC immunofluorescence methods were used to observe the cell cycle and global DNA methylation status of DNMT1 low expression 16HBE cells.

RESULTSThe DNMT1 protein relative expression level of 16HBE-shDNMT1-4 cell line was down regulated about 44% (P < 0.05) compared with the control. No obvious differences of cell cycle and global genome DNA methylation status were observed between the 16HBE and 16HBE-shDNMT1.

CONCLUSIONThe DNMT1 gene low expression cell is successfully constructed, and there are no obvious changes happened on the cell cycle and global genomic DNA methylation.

Cell Cycle ; Cell Line ; DNA (Cytosine-5-)-Methyltransferase 1 ; DNA (Cytosine-5-)-Methyltransferases ; genetics ; metabolism ; DNA Methylation ; Down-Regulation ; Epithelial Cells ; metabolism ; Humans ; RNA Interference ; RNA, Small Interfering ; genetics

Aged ; Angioplasty, Balloon, Coronary ; Coronary Angiography ; Coronary Artery Disease ; diagnosis ; therapy ; Coronary Vessel Anomalies ; diagnosis ; therapy ; Female ; Humans

This study was purposed to evaluate a method to discriminate the action loci of anticancer agents in G(2) and M phases of cell cycle. The meta-amsacrine (m-AMSA) and vinblastine (VBL), already known as G(2) and M phase arrest agent respectively, were used to induce the arrest of MOLT-4 cells at G(2) and M phases, the change of DNA content was detected by flow cytometry, the morphology of arrested cells was observed by confocal microscopy so as to find the arrest efficacy difference of 2 anticancer agents. As a result, the flow cytometric detection showed that the arrested MOLT-4 cells displayed the raise of peaks in G(2) and M phases, but flow cytometric detection alone can not discriminate the difference between them. The observation with confocal microscopy showed that the MOLT-4 cells arrested by m-AMSA displayed the morphologic features in G(2) phase, while the MOLT-4 cells arrested by VBL displayed the morphologic features in M phase. This observation with confocal microscopy is helpful to discriminate the difference between them. In conclusion, the combination of flow cytometry with confocal microscopy is one of the effective methods to discriminate the kind of G(2) or M phase arresting agent of anticancer drugs.
Antineoplastic Agents ; pharmacology ; Cell Cycle ; drug effects ; Cell Division ; drug effects ; Flow Cytometry ; G2 Phase ; drug effects ; Humans ; Microscopy, Confocal ; Tumor Cells, Cultured

This study was purposed to investigate the biological effect of vinblastine (VLS), usually known as inductor of mitotic arrest, on MOLT-4 of ALL cells and to evaluate its significance. The cell arrest in M phase and/or cell apoptosis were induced by treatment of MOLT-4 cells with 0.05 microg/ml VLS for 0 - 12 hours; the DNA histogram was detected by flow cytometry; the morphological changes of cells were observed by confocal microscopy; the cell cycle distribution, cell apoptosis and morphological changes of cells before and after arrest were analyzed by using arrest increasing rate (AIR), arrest efficiency (AE), apoptosis rate (AR) and morphologic parameters respectively. The results indicated that the cell arrest did not accompanied by significant increase of apoptosis rate; the DNA histogram of cell arrest showed dynamic change of cell cycle in time-dependent manner; the arrest efficiency could be quantified. The cell arrest at M phase was accompanied by cell stack in S phase, the cell proliferation rate dropped after cell arrest occurred. The cells arrested at M phase possessed of characteristic morphologic features in cell mitosis. It is concluded that the vinblastine can solely induce arrest of MOLT-4 cells at M phase. This study provides experimental basis for further investigating the relation of cell cycle arrest to apoptosis, mechanism of checkpoint and development of new anticancer drugs.
Apoptosis ; drug effects ; Cell Cycle ; drug effects ; Cell Division ; drug effects ; Flow Cytometry ; Humans ; Tumor Cells, Cultured ; Vinblastine ; pharmacology

OBJECTIVEMany studies have demonstrated that low levels of insulin-like growth factor-I (IGF-I) may be associated with the hypoxic-ischemic brain damage (HIBD) and that IGF-I has a neuroprotective effect. The role of IGF-II, a structurally and functionally homologous polypeptide with IGF-I, is unclear in HIBD. This study was designed to observe the changes of serum and cerebrospinal fluid (CSF) IGF-II levels in neonates with hypoxic-ischemic encephalopathy (HIE) and to investigate its effects on HIE.

METHODSSerum and CSF IGF-II levels in 41 neonates with HIE were measured by radioimmunoassay in the acute phase (postnatal age 12-24 hrs) and the convalescence phase (postnatal age 10-12 days). The 41 HIE neonates included 10 cases of mild, 12 moderate, and 19 severe HIE. Serum samples of 10 normal neonates were used as controls.

RESULTSIn the acute phase, serum IGF-II levels in the Mild HIE group (203.28 +/- 40.09 ng/mL) and the Moderate HIE group (192.33 +/- 39.66 ng/mL) were not significantly reduced, but were obviously reduced in the Severe HIE group (116.72 +/- 39.50 ng/mL) compared with normal controls (229.38 +/- 43.39 ng/mL) (P<0.01). During the convalescence phase, serum IGF-II levels in the Mild HIE group (285.53 +/- 49.44 ng/mL) and in the Moderate HIE group (278.69 +/- 51.34 ng/mL) increased significantly (P < 0.01); CSF IGF-II levels increased in the Mild HIE group from 27.23 +/- 7.82 ng/mL (acute phase) to 81.58 +/- 9.77 ng/mL (convalescence phase) (P < 0.01) and also increased in the Moderate HIE group from 23.43 +/- 7.79 ng/mL (acute phase) to 78.48 +/- 10.44 ng/mL (convalescence phase) (P < 0.01). The patients from the severe HIE group whose neurological symptoms or signs were improved in the convalescence showed higher serum and CSF IGF-II levels than in the acute phase (254.08 +/- 48.50 ng/mL vs 122.21 +/- 46.26 ng/mL; 69.42 +/- 10.20 ng/mL vs 15.05 +/- 7.03 ng/mL; P < 0.01). A positive correlation was found between the serum and CSF IGF-II levels in the HIE group (r=0.69, P < 0.01).

CONCLUSIONSIGF-II levels in serum and CSF are associated with the pathogenesis and the prognosis of neonatal HIE.

Female ; Humans ; Hypoxia-Ischemia, Brain ; metabolism ; Infant, Newborn ; Insulin-Like Growth Factor II ; analysis ; cerebrospinal fluid ; Male

OBJECTIVETo evaluate the cellular and humoral immunity effect of 10 µg and 20 µg recombinant Chinese hamster ovary (CHO) cell hepatitis B vaccine in adults by randomized double-blind controlled trials.

METHODA total of 642 adults aged 18 - 45 years old, non-vaccinated against hepatitis B, and hepatitis B five blood indicators negative were selected as the study subjects. The study subjects were randomly divided into two groups and each group had 321 subjects. The subjects were given 10 µg and 20 µg recombinant CHO hepatitis B vaccination respectively by 0, 1st, 6th month schedule. Blood sample was collected from each study subject one month after the second dose vaccination. The anti-HBs level was detected by Abbott chemiluminescence detection method (I2000) to evaluate humoral immunity status. Of all the study objects, 153 cases were randomly selected by the Excel random function. Their blood samples were collected and Lymphocyte were separated to detect the IL-4 and IFN-γ levels in vitro by enzyme-linked immunospot (ELISPOT) method to evaluate the cellular immunity status.

RESULTSThe anti-HBs seroconversion rates in 10 µg and 20 µg dose group were 88.8% (285/321) and 95.3% (306/321) respectively, and 95%CI were 85.4% - 92.2% and 93.0% - 97.6% respectively. The spot forming cell (SFC) of IL-4 of the 20 µg-dose group (x(-) = 20.31) were significantly higher than the 10 µg-dose group (x(-) = 8.19, t = 3.27, P < 0.01). With the increasing of anti-HBs titer, the SFC of IL-4 also went up significantly. There was a positive correlation between SFC of IL-4 and anti-HBs (Spearman correlation coefficient = 0.538, P < 0.0001). No significant difference was found for IFN-γ SFC in two groups (10 µg group: x(-) = 1.49; 20 µg group: x(-) = 0.86; t = 1.83, P > 0.05).

CONCLUSIONThe humoral and cellular immune effects of 20 µg recombinant CHO hepatitis B vaccine are better than that of the 10 µg recombinant CHO hepatitis B vaccine.20 µg recombinant CHO hepatitis B vaccine should be chosen as the adult's hepatitis B prevention vaccine.

Adolescent ; Adult ; Animals ; Antibody Formation ; CHO Cells ; Cricetinae ; Cricetulus ; Double-Blind Method ; Female ; Hepatitis B ; prevention & control ; Hepatitis B Antibodies ; blood ; immunology ; Hepatitis B Vaccines ; administration & dosage ; immunology ; Humans ; Immunity, Cellular ; immunology ; Male ; Middle Aged ; Young Adult