AIM: To study the inhibitory effect of captopril on retinal neovascularization (RNV).METHODS: Sixty seven-day-old mice were randomly divided into treated group and control group with thirty mice in each group. These mice were exposed to 750 50mL/L oxygen for 5 days and then to room air.The treated group had been injected captopril (2.7mL/kg), while control group had been injected 9g/L sodium chloride (2.7mL/kg) by intravitreal for 5 days.The mice were sacrificed at the 17th day after birth and the eyes were enucleated. Adenosine diphosphate-ase(ADPase) stained retina flat-mounts was performed to assess the retinal vascular profiles, Hematoxylin Eosin (HE)staining method was applied to count the number of new vascular cell nuclei and the expression of matrix metalloproteinase-2(MMP-2)and pigment epithelium derived factor (PEDF)was detected by immunohistochemical method.RESULTS: Comparing with control group,regular distributions and good branch and reduced density of RNV were observed in the treated group. The number of nucleus of new vessels vascular endothelial cells breaking through the internal limiting membrane was less in the treated group than in the control group (P<0.05). Stain of retinal MMP-2 was weaker in the treated group than in the control group and stain of retinal PEDF was stronger in the treated group than in the control group.CONCLUSION: Intravitreal injection of captopril (2.7mL/kg) may block the RNV in the oxygen-induced mouse model and may provide an effective method for prevent-ing RNV.

Objective: To observe the effect of intrathecal p38 MAPK inhibitor (SB203580) treatment on neuropathic pain and the expression of p38 MAPK and BDNF in dorsal horn of spinal cord in rats with chronic constriction injury (CCI), So as to investigate the possible mechanisms of neuropathic pain. Methods: Totally 30 SD rats were evenly randomized into 3 groups (n=10): sham group receiving intrathecal injection of sodium chloride, control group receiving intrathecal injection of sodium chloride and CCI surgery, and SB203580 group receiving intrathecal injection of SB203580 and CCI surgery. SB203580 (0.1 ml/kg) was administered 0.5 h before and 1-14 d after CCI surgery. The mechanical thresholds were tested 24 h before and 4-14 d after CCI surgery. p38 MAPK expression and BDNF release in the dorsal horn were determined using immunohistochemistry method 14 d after CCI surgery. Results: The mechanical thresholds in the control and SB203580 groups were significantly lower after CCI surgery compared with that before CCI surgery (P<0.05), but there was no significant change in the control group (P>0.05). Compared with the sham operation group, the mechanical thresholds were significantly lower in the other two groups after CCI surgery (P<0.05). The mechanical threshold of SB203580 group was significantly higher than that of the control group after CCI surgery (P<0.05). The p38 MAPK expression and BDNF release were significantly higher in the control and SB203580 groups compared with those in the sham operation group (P<0.05), and those in the SB203580 group were significantly lower than those in the control group (P<0.05). Conclusion: Intrathecal injection of p38 MAPK inhibitor SB203580 can attenuate hyperalgesia in CCI rats through decreasing p38 MAPK expression and BDNF release.

Angioplasty ; history ; methods ; Cardiovascular Surgical Procedures ; history ; methods ; Coronary Artery Bypass ; history ; methods ; Coronary Artery Disease ; surgery ; Heart Transplantation ; history ; methods ; History, 20th Century ; History, 21st Century ; Humans ; Stem Cell Transplantation ; history ; methods

Acupuncture Therapy ; Adult ; Amenorrhea ; chemically induced ; drug therapy ; Antipsychotic Agents ; adverse effects ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Phytotherapy

Objective To explore the clinical,imaging and pathologic features of hypertrophic cranial pachymeningitis (HCP).Methods The clinical data of one HCP patient who treated in our hospital and other 77 HCP patients from literatures were analyzed retrospectively.Results The clinical manifestation of all the 78 HCP patients had chronic headache,multiple cranial nerves impairment.The secondary was psychiatric disorder(10.3%),ataxia(9.0%) and seizure disorder(6.4%).Hemiplegia,menorrhea and galactosis were found few.Headache was the first onset symptom in the 74 cases (94.9%).HCP was often misdiagnosed subarachnoid hemorrhage,hypotensive cranial pressure headache and cerebral venous sinus thrombosis in early stage.MRI demonstrated local or diffused thickened dura,especially in cerebral falx and/or tentorium of cerebellum,which could be enhanced through reinforced scanning.Pathological evidence indicated an obvious proliferation of dura fiber tissue accompanied with inflammatory cells infiltration.Corticosteroid was effective to all the cases.Conclusions The clinical manifestation of HCP was multiplicity,but it mainly was chronic headache and multiple cranial nerves impairment.MRI demonstrates local or diffused thickened dura especially in cerebral falx and/or tentorium of cerebellum.MRI has an important significance for diagnosis.

OBJECTIVE:To reduce the types of drugs which was not consistent with the accounts in monthly checking of out-patient department,reduce the wastage of dismounted drugs and improve dismounted drug management. METHODS:Through qual-ity control circle(QCC),analyzing the reasons for inconformity of accounts and drugs,adopting relevant countermeasures of staff training,cipher prescription,counter storage,managed by designated person,expiry data management and so on,the process of dismounted drug management was formulated and implemented. The types of drugs which was not consistent with the accounts and activity growth value of circle members were analyzed statistically before,during and after QCC. RESULTS:The types of drugs which was not consistent with the accounts were 33.6,21.2 and 13.6 before,during and after QCC,decreasing by 59.5%. The ac-tivity growth value of circle members were all positive value. CONCLUSIONS:QCC of outpatient pharmacy can effectively reduce the types of drugs which is not consistent with the accounts in monthly checking,standardize dismounted drug management and im-prove pharmaceutical care quality.

Adult ; Aged ; Aged, 80 and over ; DNA Primers ; Female ; Humans ; Lymphoma ; genetics ; Male ; Middle Aged ; Mutation ; Myeloid Differentiation Factor 88 ; genetics ; Polymerase Chain Reaction

Neutrophil extracellular traps (NETs) are fibrous structures released by neutrophils and the formation process is called NETosis. NETs participate in the host innate immunity. Recent research has found that NETs is a double-edged sword. Under normal conditions, the formation of NETs can play a role in clearing pathogens and maintain the host homeostasis. However, when NETs are overproduced or not cleared in time, they can take part in the pathogenesis of many diseases. This article reviewed the formation of NETs, the mechanisms involved in NETosis and the role of NETs in the secretion of multiple cytokines in different diseases.

Flavonoids are a class of important active ingredients in traditional Chinese medicine, pharmacological activity and in vivo process is the focus of research in recent years. Calycosin is the main active ingredients of flavonoids in Astragali Radix, recent studies indicate that it has many kinds of pharmacological activity, but the absorption and transport characteristics in vivo is unclear. The experiment using Caco-2 cell model, with apigenin as internal standard substance, using the method for the determination of drug concentration by HPLC, were studied at different concentrations and absorption transport characteristics of respectively adding different types of protein inhibitors. Data were analyzed by Q test, the results show that low, middle, high concentration of P(app)(BL-AP)/ P(app)(AP-BL) = 1.38 < 1.5, respectively adding different types of protein inhibitors, compared with the control group of P(app)(BL-AP)/ P(app)(AP-BL), there were no significant differences. Calycosin absorption may mainly passive transport, also involved in active transport mechanism, the transport may not be affected by the P-protein, MRP2 protein, SGLT protein.
Absorption ; Biological Transport ; Caco-2 Cells ; Chromatography, High Pressure Liquid ; Culture Media, Conditioned ; chemistry ; Drug Stability ; Drugs, Chinese Herbal ; analysis ; pharmacokinetics ; Humans ; Hydrogen-Ion Concentration ; Isoflavones ; analysis ; pharmacokinetics ; Models, Biological

A new dynamic in vitro intestinal absorption model for screening and evaluating lipid formulations was established by means of the characteristics of the intestinal digestion and absorption of the lipid formulations. This model was composed of two systems, including intestinal digestion and the intestinal tissue culture, which drew the evaluation method of intestinal absorption into the in vitro lipolysis model. The influence of several important model parameters such as Ca2+, D-glucose, K+ on the two systems of this model has been investigated. The results showed that increasing of Ca2+ concentration could be significantly conductive to intestinal digestion. The increasing of D-glucose concentration could stepped significantly down the decay of the intestinal activity. K+ was able to maintain intestinal activity, but the influence of different concentration levels on the decay of the intestinal activity was of no significant difference. Thus the model parameters were set up as follows: Ca2+ for 10 mmol x L(-1), D-glucose for 15 mmol x L(-1) and K+ for 5.5 mmol x L(-1). Type I lipid formulation was evaluated with this model, and there was a significant correlation between the absorption curve in vitro and absorption curve in vivo of rats (r = 0.995 6, P < 0.01). These results demonstrated that this model can be an attractive and great potential method for the screening, evaluating and predicting of the lipid formulations.