OBJECTIVE: To prepare and establish a release rate method for the determination of ganciclovir lung-targeted microcapsules.METHODS: The microcapsules were prepared by compound emulsion-dispersion solvent evaporation method.The in vitro drug release amount and release rate of the microcapsules were detected by UV spectrophotometry.RESULTS: The microcapsules were regular in shape with an average particle size of 13.87 ?m.The linear range of ganciclovir was 2～20 ?g?mL-1(r=0.999 9) and its average recovery was 99.96%(RSD=1.68%).The entrapment efficiency of the microcapsules was 63.85% and the drug release amount in vitro reached 40% in 24 hours.CONCLUSIONS: The microcapsules show significant sustained release character.

Objective To investigate the effects of panax notoginseng saponins(PNS) on the expression of IL-10 and TNF-α in the brain after focal cerebral ischemia-reperfusion injury in rats,and the mechanism was explored.Methods 30 male adult Sprague-Dawley rats were randomly divided into sham-operation group,ischemia-reperfusion group and PNS treatment group,10 rats in each group.The middle cerebral artery occlusion(MCAO) was established with ischemia-reperfusion group.The rats received continuous gastric lavage for 4 weeks,who were observed for 3 days and then killed to the detect the expression of IL-10 and TNF-αin ischemic region by ELISA,immunohistochemistry and RT-PCR.The behavioral ability score in rats were tested.Results Compared with the sham-operation group and ischemia-reperfusion group,the expression of IL-10 was increased,while the expression of TNF-α was decreased significantly in PNS treatment group,behavior score of PNS treatment group increased significantly than that of ischemia-reperfusion group.Conclusion The panax notoginseng saponins can reduce the neurons injury after focal cerebral ischemia-reperfusion injury in rats partly by regulating the expression of IL-10 and TNF-α in the brain.

The technology of processing carbonized Cephalanoplos segetum was optimized by using orthogonal experiment design. Results showed that the best way is to stir-fry in a pan for 5 min at 210℃. The contents of trace. elements in the prepared specimen were found to be significantly increased.

Cardiovascular Diseases ; psychology ; Humans ; Mental Health

Anemia, Iron-Deficiency ; blood ; diagnosis ; Biomarkers ; blood ; Child ; Child, Preschool ; China ; Enzyme-Linked Immunosorbent Assay ; Female ; Humans ; Infant ; Male ; Receptors, Transferrin ; blood

Clinical records of a patient with olfactory neuroblastoma presented with hyponatremia as initial symptoms were analyzed and the literatures were reviewed. At initial onset, the patient presented with hyponatremia. After pathological examination, the diagnosis was olfactory neuroblastoma. The blood sodium has been normal after operation and radiotherapy. The incidence rate of olfactory neuroblastoma is low, and it is easily misdiagnosed. Its diagnosis relies on pathological examination. We should pay more attention to the unspecific symptoms of patients with hyponatremia, which can help to improve early diagnosis and the prognosis.
Esthesioneuroblastoma, Olfactory ; complications ; pathology ; Humans ; Hyponatremia ; etiology ; Nasal Cavity ; pathology ; Nose Neoplasms ; complications ; pathology ; Prognosis

Objective To develop fluorescence quantitative reverse transcription polymerase chain reaction (FQ-RT-PCR) for detection and quantitation of transforming growth factor ?1 (TGF-?1) mRNA in peripheral blood mononuclear cell (PBMC) of patients with chronic hepatic disease.Methods The TGF-?1 recombined plasmid was constructed by conventional molecular biological techniques,and strand-specific cRNA standard was synthesized by T7 RNA polymerase in vitro transcription.The cRNA standard and a TaqMan-MGB probe were used for quantitation of the TGF-?1 mRNA,and the assay was evaluated.Moreover,the plasma TGF-?1 was detected by ELISA.Results Sequence analysis indicated that the recombined plasmid contains the specific 102bp fragment of TGF-?1. The FQ-RT-PCR could detect as low as 6.81 copies of standard cRNA,the linear range was from 6.81 to 6.81?10~9 copies,and the coefficient variation was 1.28%-2.27% and 2.56%-2.61% respectively in intra and inter-assay.The levels of TGF-?1 mRNA in PBMC and plasma TGF-?1 of patients with chronic hepatic disease were significantly higher than that of healthy controls(P

ObjectiveTo investigate whether miR-25 targets KLF4 to regulate the growth of gastric cancer cells and lucidate the mechanism of miR-25 producing functional effects in gastric cancer cells. Methods The expression levels of miR-25 and KLF4 were detected by qRT-PCR in 35 pairs of gastric cancer tissues of patients. Target genes of miR-25 were predicted using Targetscan and verified though dual luciferase activity assay and west-ern blot. MTT assay and clone formation assay were detected after downregulated miR-25 and overexpressed KLF4 respectively. Results miR-25 was highly expressed in gastric cancer tissues with KLF4 downexpresstion. Downreg-ulated miR-25 and overexpressed KLF4 respectively can significantly reduce the proliferation of gastric cancer cells,the results were opposite when overexpression of KLF4. Conclusion miR-25 promotes gastric cancer cells proliferation by targeting KLF4.

Objective To investigate the expression level of cyclooxygenase-2 (COX-2) and its effects on cell proliferation and apoptosis in bladder cancer. Methods The immunohistochemical method was used to determine the expression of COX-2 and Ki67 in 54 cases of bladder cancer, 29 cases of adjacent tumor tissue and 10 cases of normal bladder specimen respectively, and the apoptotic levels of the obove three tissues were assessed by counting the number of the cells labeled by TUNEL method. Results The positive rate of COX-2, the mean labelling index of Ki67 and the cellular apoptosis index in the cancer tissues were significantly higher than those in adjacent tumor tissues and normal bladder specimens(P

Objective To evaluate the efficacy of gasless laparoscopy for totally extraperitoneal(TEP) hernia repair.Methods Between April and August 2007,totally 82 patients with inguinal hernia received TEP in our hospital,in 30 of them the surgery was completed with gasless laparoscopy,while in the other 52,pneumoperitoneum was used for the operation.The operation time,medical cost,hospital stay,complications,and follow-up data of the two groups were compared.Results The gasless group had a longer operation time [(65.3?19.4) min vs(43.6?21.9) min,t=4.501,P=0.000],but less medical cost [(6186.7?1283.7) RMB vs(8391.8?850.8) RMB,t=-9.347,P=0.000].No significantly difference was observed in the hospital stay and rate of complications between the two groups [(2.1?0.8) d vs(1.8?0.9) d,t=1.513,P=0.134;and 6.7%(2/30) vs 5.8%(3/52),?2=0.027,P=0.870].Conclusion Gasless laparoscopy is effective and safe for totally extraperitoneal(TEP) hernia repair.