Aim To explore the effect of picrodideⅡ on the expressions of Caspase-3 and poly ADP-ribose polymerase (PARP) in brain tissue following cerebral ischemic reperfusion injury in rats.Methods The middle cerebral artery occlusion reperfusion models were established with intraluminal thread methods in rats. PicrodideⅡ (10 mg·kg~(-1)) and salvianic acid A sodium (10 mg·kg~(-1)) were injected from tail vein for treatment. The neurological function was evaluated with Bederson's test and the cerebral infarction volume was observed with tetrazolium chloride (TTC) staining.The brain structure was observed by hematoxylin-eosin (HE) staining and the apoptosis was counted by TUNEL immunofluorescence assay. The expressions of Caspase-3 and PARP were detected with immunohistochemical and enzyme linked immunosorbent assay.Results After ischemia 2 h and reperfusion 22 h, the rats showed neurological function deficit and cerebral infarction in ischemic hemisphere. The expressions of Caspase-3 and PARP and the number of apoptotic cells in brain tissue increased compared with those in the sham operative group (P <0.05). In picroside and salvianic acid A sodium groups, the Bederson's scores and cerebral infarction volume, the expressions of Caspase-3 and PARP and the number of apoptosis cells were lower than those in the negative control group (P <0.05). While there was no significant difference in five indexes metioned above between picroside group and salvianic acid A sodium group (P >0.05).Conclusion PicrosideⅡ might reduce the expressions of Caspase-3 and PARP to inhibit the neuronal apoptosis induced by cerebral ischemia reperfusion injury and improve the neurological function of rats.

Objective To investigate the drug resistance of side population cells in human gallbladder cancer cell line GBC-SD and explore its mechanism. Methods Drug sensitivity assays of 5chemotherapeutic agents were performed on side population cells (SP) and non-SP cells of GBC-SD.GBC-SD was cultured and then treated with the chemotherapeutic agent gemcitabine. The frequency of SP by FACS was measured. RT-PCR and Western blotting were used to detect the expression of AB-CG2 in both the SP and the corresponding non-SP subsets. Results After 1 d treatment with 4 chemotherapeutic agents (gemcitabine, cisplatin, 5-fluorouracil and mitoxantrone) in IC50 concentration to GBC-SD cell line, the reproductive ability of SP was higher than that of non-SP (P<0.05). However, statistical significance was not achieved when compared with epirubicin (P>0.05). The percentage of SP in GBC-SD treated with chemotherapeutic agent gemcitabine after 3 weeks was sharply elevated by FACS (8.02% ±0.13% vs 0.62% ±0.08%, P<0.05), and the expression of ABCG2mRNA and protein were increased in SP as compared with non-SP. Conclusion SP from human gallbladder cancer cell line GBC-SD, like stem cell, showed a heighten resistance to drugs. Increased expression of ABCG2 was largely responsible for the multi-drug resistance.

The effects of ultrafine grinding on the dissolution rates of the effective components in Sanjie Zhentong capsule (SZC) were studied in this experiment. Fine and ultrafine powder of SZC intermediates were made by ordinary grinding and ultrafine grinding technology, and then granulated by wet granulation. SZC were prepared by fine powder, ultrafine powder and ultrafine granules, respectively. With resveratrol and loureirin B as investigated indexes, dissolution rates of the four intermediates in SZC were determined by cup method and HPLC. The dissolution rates of resveratrol in SZC prepared by fine powder, ultrafine powder and ultrafine granules were 26.11%, 63.27%, 67.49%, respectively; and the dissolution rates of loureirin B were 7.160%, 20.29%, 23.05%, respectively. The dissolution rate of resveratrol and loureirin B in SZC prepared by ultrafine granules was the best. D90 size of ultrafine grinding was 13.221 μm and could improve the dissolution rates of resveratrol and loureirin B in SZC.
Capsules ; chemistry ; Drugs, Chinese Herbal ; chemistry ; Particle Size ; Silicones ; chemistry ; Solubility ; Technology, Pharmaceutical ; methods

Objective To evaluate clinical efficacy and safety of endoscopic radial incision( ERI) for benign stricture of esophageal anastomosis. Methods Clinical data of 17 patients with benign stricture of e?sophageal anastomosis undergoing ERI from October 2013 to September 2014 were retrospectively studied. Im?provement of clinical symptom and treatment?related complication or discomfort were intensively analysed. Re?sults All 17 patients successfully received ERI procedures, and the mean operating time was 10 minutes with a mean of 4 incisions. Obvious bleeding and mis?cut of normal mucosa occurred in 1 case, and this patient was cured by endoscopic hemostasis, gastrointestinal decompression and administration of antibiotics. Heartburn oc?curred in 5 patients and disappeared spontaneously without other complications or discomfort. Dysphagia score decreased from 3?11 to 0?90 in the second day after ERI(P<0?01).The mean follow?up time was 15?5 months ( range 9?20 months) . The dysphagia score showed no significant difference between the follow?up period and the second day after ERI ( P>0?05 ) . Conclusion ERI is simple, safe and effective for treating benign stricture of esophageal anastomosis.

Theexcretionofurinaryandplasmametabolitesofsalbutamolwasstudiedusingultrahigh performance liquid chromatography electrospray time-of-flight mass spectrometry, after a single intragastric gavaged dose administration with salbutamol. The software of Agilent MassHunter Metabolite ID was employed to find and identify the chemical structure of metabolites of salbutamol. Five metabolites from salbutamol were identified. Metabolites identified in swine urine included glucuronide conjugate salbutamol, N-oxide-salbutamol, hydroxyl-salbutamol, methoxyl-salbutamol and dehydrated hydroxyl-salbutamol. Whereas, only the parent drug, glucuronide conjugate salbutamol and dehydrated hydroxyl-salbutamol were observed in swine plasma.

Objective Modified the medium that can increase single\|clone formed rate and confirmed the single clone spheres had the multipotential of differentation. Methods We modified the medium, that is, the medium contained half of primary culture medium and half of fresh culture medium. A great deal of neurospheres dervied from a single cell were plated averagely into 24 well plates and added into the DMEM differentiation medium (containing serum). After culturing for 14 days, cultures were stained with the neuronal\| ang glial\|specific markers (MAP\|2 for neurons, GFAP for astrocytes and CNP for oligodendrocytes). Results Each 96 well plate containing half of primary culture medium generated two to three single clone spheres, in control plate containing only fresh medium generated half to one single clone sphere. After differentiation, these cell clones expressed MAP\|2, GFAP and CNP positive respectively.Conclusion\ Using half of primary culture medium can increase single\|clone formed rate and these cell clones had the multipotential of differentiation.\;[

Objective To evaluate the effects of ginkgolide B on inducing neural stem cells differentiating into neurons. Methods A great deal of single cell clone neurospheres raised from single cell and proliferated by the technology of serum\|free culture and single cell clone.Suspensions of cell clone neurospheres were plated equably into 24 well plates and added into the 10% FBS differentiation medium containing ginkgolide B,BDNF or without any factor.Cultures were terminated at 7 and 14 days respectively.MAP\|2,neuron\|specific marker,were used to mark neurons by immunofluorescence.MAP\|2 positive neurons were observed and counted by fluorescence microscope.The area and perimeter of these positive neurons were analyzed. Results The number of MAP\|2 positive neurons in ginkgolide B group is more than that in the control group in two periods.The area and perimeter of MAP\|2 positive neurons in ginkgolide B group were markedly larger than those in the control group at 7 and 14 days after cultured,but it's less than those in the BDNF group.Conclusion\ Neural stem cells can be induced to differentiate into neurons by ginkgolide B which has the similar role to BDNF.\;[

OBJECTIVETo investigate the predictive value of HCV RNA in PBMC of patients with chronic hepatitis C to IFN treatment.

METHODSThe HCV RNAs in PBMC were detected at the end of treatment, and 24 week and 1 year follow up after end treatment, in 16 patients who acquired complete response to IFN in 12 weeks of 24 weeks therapy.

RESULTS9 patients were HCV RNA positive in their PBMC at the end of treatment, the serum HCV RNA of 8 turned positive after 24 weeks and 1 year follow-up. In 7 patients with negative HCV RNA in PBMC, only two patients relapsed in serum HCV RNA after 1 year follow-up, and others remained viral response after 3.5 years.

CONCLUSIONHCV RNA in PBMC at the end of treatment was a predictor of the durable response to antiviral therapy in chronic hepatitis C.

Adult ; Female ; Hepatitis C, Chronic ; drug therapy ; virology ; Humans ; Interferon-alpha ; therapeutic use ; Leukocytes, Mononuclear ; virology ; Male ; Middle Aged ; RNA, Viral ; blood ; Recombinant Proteins

No abstract available.
Gastrins*

No abstract available.
Angiotensin II* ; Angiotensins* ; Hydrocortisone* ; Insulin*