Epilepsy, Generalized ; etiology ; Humans ; Infant, Newborn ; Male ; Malformations of Cortical Development ; complications

Animals ; Calcitonin Gene-Related Peptide ; blood ; Cerebral Infarction ; blood ; Endothelins ; blood ; Humans ; Nitric Oxide ; blood ; Plasminogen Inactivators ; blood ; Thromboxane B2 ; blood

T cell immune receptor with Ig and ITIM domains (TIGIT), a promising new target in cancer immunotherapy, plays a critical role in limiting adaptive and innate immunity against tumors. The extracellular domain of human TIGIT was used to immune BALB/c mice, and a new anti-human TIGIT chimeric antibody (c7D3) was developed. The mice in this study were used in accordance with the international guidelines for the care and use of laboratory animals, and the animal study was approved by the Institutional Animal Ethics Committee of AbMax Biotechnology. The biological activity of c7D3 was studied. The results showed that c7D3 exhibited high affinity for TIGIT and effectively inhibited the interaction between TIGIT and its ligands. Cell-based assays indicated that c7D3 induced strong luciferase signaling in TIGIT/CD155 signaling reporter assay and enhanced cytokine secretion in a T cell stimulation assay. The data showed that c7D3 has high binding affinity and excellent blocking bioactivity, supporting the further advancement for therapeutic application.

Objective To investigate the in vitro effect of interferon-γ (IFN-γ) and ATRA on the morphological transition, proliferation of and apoptosis in a human cutaneous squamous cell carcinoma cell line SCL-1. Methods Cultured SCL-1 cells were divided into 6 groups to be treated with ATRA of 1 μmol/L, various concentrations ( 100, 500, 1000 U/ml) of IFN-γ, the combination of ATRA of 1 μmol/L and IFN-y of 1000 U/ml,respectively, or to remain untreated. MTT assay and flow cytometry were performed to evaluate the cell proliferation and apoptosis. The morphological features of apoptotic cells were observed by a transmission electron microscope (TEM) and inverted phase contrast microscope after 1% propidium iodide staining. Results IFN-γ could inhibit the proliferation of SCL-1 cells in a dose-dependent manner, and the most pronounced inhibitory effect was observed at a dose of 1000 U/ml . ATRA and IFN-γ induced an apoptosis in SCL-1 cells, and the early apoptosis rate was 4.84%, 11.96% and 18.71% in SCL-1 cells after treated with ATRA of 1 μmol/L, IFN-γ of 1000 U/ml and their combination, respectively. A series of morphological changes characteristic of apoptosis,such as bipolar changes, were observed in SCL-1 cells treated with ATRA and IFN-γ, with the presence of many early apoptotic cells, which showed a trend towards benign differentiation. Conclusions Within a certain concentration range, IFN-γcan promote the differentiation, but inhibit the proliferation of SCL-1 cells in a dose-dependent manner, and ATRA could enhance the effects of IFN-γ.

OBJECTIVETo study the correlationship between TCM Syndrome type with changes of neutrophil surface intercellular adhesion molecule-1 (ICAM-1) and platelet membrane P selectin (CD62P) in patients with ischemic stroke for exploring the pathogenesis of the disease.

METHODSSeventy-two patients with ischemic stroke were dividcd into 3 typing groups according to TCM syndrome-differentiation, the Meridian-phlegm stagnancy group (MPS), the visceral phlegm-heat accumulation group (VPHA) and the qi-deficiency with blood stasis group (QDBS), 24 in each group. Besides, a control group consisted of 24 healthy subjects was set up. Blood levels of ICAM-1 and CDP62 expression were monitored by flow cytometry.

RESULTSBlood levels of ICAM-1 and CD62P expression in ischemic stroke patients were significantly higher than those in healthy subjects (P < 0.01). Among the three type groups, ICAM-1 expression was significantly higher in MPS than that in the VPHA and the QDBS group (P<0.01), and CD62P expression in the MPS and the QDBS group was significantly higher than that in the VPHA (P <0.01).

CONCLUSIONBlood levels of ICAM-1 and CD62P expression in different typing of patients with ischemic stroke are different. ICAM-1 expression reflects the pathological state of phlegm retention or phlegm-stasis mutual bindings, CD62P expression reflected the blood stasis state in organism, these evidences suggest that MPS may be the key pathogenic factor of ischemic stroke.

Aged ; Aged, 80 and over ; Diagnosis, Differential ; Female ; Humans ; Intercellular Adhesion Molecule-1 ; blood ; Male ; Medicine, Chinese Traditional ; Middle Aged ; P-Selectin ; blood ; Stroke ; blood

OBJECTIVETo prepare colon target pellets of Pulsatilla total saponins.

METHODPulsatilla total saponins-hydroxypropyl-beta-cyclodextrin inclusion was prepared by the water solution-mixing method. Then plain pills of inclusion were prepared by the granulation-spheronization method, and coated by Glatt fluid bed.

RESULTThe dissolution of plain pills of Pulsatilla total saponins at 2 h was 16.0%, while that of plain pills of inclusion at 0.5 h was 91.9%. With Eudragit S100 as the coating material, TEC as the plasticizer and talcum power as the anti-adherent, when the coating weight was 12%, the coating efficiency was high, with almost no bonding and drug release of coated pellets in artificial gastric juice for 2 h. The accumulated drug release in artificial intestinal fluid for 4 h was less than 15%, and that in artificial colon fluid for 4 h was more than 90%.

CONCLUSIONCoated pellets of Pulsatilla total saponins-hydroxypropyl-beta-cyclodextrin inclusion showed a good colon targeted drug release in vitro, thus could be further developed to be oral colon targeted preparations.

2-Hydroxypropyl-beta-cyclodextrin ; Absorption ; Biomimetic Materials ; metabolism ; Colon ; metabolism ; Drug Compounding ; methods ; Drug Implants ; Gastric Juice ; metabolism ; Humans ; Pulsatilla ; chemistry ; Saponins ; chemistry ; metabolism ; Surface Properties ; beta-Cyclodextrins ; chemistry

OBJECTIVETo study the effect of solid dispersion technology and inclusion technology on dissolution performance of Pulsatillae total saponins, and preliminarily investigate its mechanism.

METHODThe solid dispersion of Pulsatillae total saponins-PEG 4000 was prepared by the melting method. The inclusion compound of Pulsatillae total saponins-hydroxypropyl-beta-cyclodextrin ( HP-beta-CD) was prepared by the freeze-drying method. The properties of solid dispersion and inclusion compound were identified by using IR, DSC and NMR. And the dissolution of solid dispersion and inclusion compound were also determined by the small glass method.

RESULTIR, DSC and NMR results showed the formation of solid dispersion and inclusion compound. In terms of the dissolution, the inclusion compound ranked first, which was followed by solid dispersion and bulk pharmaceutical chemicals.

CONCLUSIONThe inclusion technology could significantly increase the dissolution of Pulsatillae total saponins, whereas the solid dispersion showed no notable solubilization effect.

Drug Compounding ; methods ; Drugs, Chinese Herbal ; chemistry ; Saponins ; chemistry ; Solubility ; Spectrophotometry, Infrared

OBJECTIVETo investigate the clinical efficacy, adverse reaction and safety of Jieyu pill (JYP) in treating depression.

METHODSThe randomized controlled trial was conducted in 28 patients in the treated group and 29 patients in the control group treated with maprotiline (Map). The efficacy of treatment was evaluated before treatment and 14, 28 and 42 days after treatment, with Hamilton depression rating scale (HAMD), self-rating scale for depression (SDS), self-rating scale for anxiety (SAS) and clinical global impression (CGI), the adverse reaction was assessed by Asberg Rating Scale (ARS).

RESULTSJYP was effective in treating depression, the markedly effective rate being 78.8%, corresponded to that of Map (82.8%, P > 0.05). After treatment, the scores assessed by HAMD, SDS and SAS were all lower than those before treatment (P < 0.01) respectively, but comparison between the two groups showed insignificant difference (P > 0.05). However, scores of ARS were significantly lower in the treated group than that in the control group, and the efficacy index of JYP was significantly higher than that of Map (P < 0.01).

CONCLUSIONJYP in treating depression shows the efficacy corresponded to that of Map and with less adverse reaction.

Adolescent ; Adult ; Aged ; Antidepressive Agents ; therapeutic use ; Antidepressive Agents, Second-Generation ; therapeutic use ; Depressive Disorder ; drug therapy ; Drug Therapy, Combination ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Male ; Maprotiline ; therapeutic use ; Middle Aged ; Phytotherapy ; Psychiatric Status Rating Scales

Animals ; Arteriosclerosis ; drug therapy ; Cholesterol, LDL ; blood ; Drugs, Chinese Herbal ; pharmacology ; Hyperlipidemias ; drug therapy ; Lipids ; blood ; Lipoproteins ; blood ; Lipoproteins, LDL ; blood ; Male ; Rabbits ; Tablets ; Triglycerides ; blood

AIMTo study the effects of cryopreservation length on the proliferative potential of hematopoietic cells derived from cord blood.

METHODSUsing Dextran-40 and 10% DMSO as cryoprotectants, separated nuclear cells were stored in liquid nitrogen after they were freezed according programme. One month or 4 months later, they were thawed and expanded in serum-free medium for culture and expansion of hematopoietic cell (SFEM) for 5 weeks. Dynamic results were detected every week.

RESULTSAt the 5th week of expanding, TNC were expanded for 1499.0 +/- 115.6-folds and 1513.0 +/- 110.4-folds, respectively. CD34+ cells and CFCs reached to their highest level at the 2nd week and at the 3rd week. CD34+ cells were expanded for 63.8 +/- 6.1-folds and 62.4 +/- 5.7-folds, respectively. CFCs were expanded for 53.8 +/- 6.3-folds and 54.8 +/- 6.7-folds, respectively. Between the two kinds of cells, statistical significant difference in proliferative potential wasn't detected.

CONCLUSIONIn ideal cryopreservative condition, the cryopreservation length would do not affect the proliferative potential of cord blood hematopoietic cells.

Cell Proliferation ; Cell Survival ; Cells, Cultured ; Cryopreservation ; methods ; Fetal Blood ; cytology ; Hematopoietic Stem Cells ; cytology ; Humans ; Time Factors