Objective To observe the effect of Jisheng injection(JI)in preserving isolated heart of mice.Methods Langendorff' s isolated -perfused mouse heart mod el was established.The isolated hearts were preserved in modified Eu-ro -Collins solution(MECS)and MECS with JI added for 3h,7.5h and8.5h respectively.Cardiac functio n,coronary flow and myocardial water -volume (MWV)were observed after 3h ,7.5h and 8.5h of preservation,heart reactivatio n(HR)rate,coronary flow,MWV and time for HR were also observed.Results After 3h of preservation and 20min,30min or 40min of reperfusion,cardiac function and coronary flow in three M ECS +JI groups and especially in that of large dose were improved as compared with t hose in MECS group;MWV in large -dose and moderate -dose groups was obvi-ously lower than that in MECS group(P

Objective To explore the effect of iron chelators on labile iron pool and expression of apoptosis associated genes in cells of K562, an erythroleukemia cell line.Methods K562 cells were incubated at 37 ℃ in RPMI 1640 containing 10% heat-inactived fetal bovine serum in an saturated humidity and 5% CO_2 incubator. K562 cells were incubated with different concentrations of desferro-(xamine(DFO)). The study groups were divided as following: DFO group, iron+DFO group and the control group. Following indices were detected which included apoptosis by flow cytometry (FCM) assay, expression of Rb, c-myc, bax mRNA by RT-PCR. The intracellular LIP was measured with a fluorimetric assay using the metalsensitive probe calcein-AM.Results 1. The viability of K562 cells incubated with different concentrations of DFO was lower than that of control group at 12 h,24 h and 48 h (P

A novel Aspergillus terreus strain M11 was isolated from the compost containing cellulose and identified. The isolate grow best at 45℃ and pH2.0. It was found that the activity of the CMCase was up to 3.680IU/mL with high heat stability and the optimal reaction conditions of the CMCase were at 60℃ and pH2.0.

Nanocarriers generally made of natural or artificial polymers ranging in size from about 10-1 000 nm, possess versatile properties suitable for drug delivery, including good biocompatibility and biodegradability, potential capability of targeted delivery and controlled release of incorporated drugs, and have been extensively used in the development of new drug delivery systems (DDS). These types of nano-DDS have considerable potential to traditional Chinese medicine (TCM), and recently have attracted increasing efforts on the TCM research and development. In this review, the recently published literature worldwide is covered to describe the latest advances in the applications as TCM delivery carriers, and to highlight the characteristics and preparation methods of some selected examples of promising nanocarriers such as nanoparticles, lipid nanoparticles, nanoemulsions, nanomicelles and nanoliposomes.
Drug Carriers ; chemistry ; Medicine, Chinese Traditional ; methods ; Nanostructures ; chemistry ; Nanotechnology ; methods

Lipoproteins are biological lipids carriers. The natural and reconstituted lipoprotein based drug delivery systems have been extensively developed in recent years. This article reviews the development of natural and reconstituted low-density lipoprotein and high-density lipoprotein based vehicles in the antitumor area.
Animals ; Antineoplastic Agents ; administration & dosage ; chemistry ; Apolipoproteins B ; administration & dosage ; chemistry ; Drug Carriers ; administration & dosage ; chemistry ; Humans ; Lipoproteins ; administration & dosage ; chemistry ; Lipoproteins, HDL ; administration & dosage ; chemistry ; Lipoproteins, LDL ; administration & dosage ; chemistry ; Nanoparticles ; Neoplasms ; drug therapy ; Peptides ; administration & dosage ; chemistry ; Pharmaceutical Vehicles ; chemistry

Animals ; Comet Assay ; DNA Damage ; drug effects ; Lymphocytes ; drug effects ; Male ; Organometallic Compounds ; toxicity ; Rats

Bufalin is an active compound of the traditional Chinese medicine Chansu, which exhibits significant anti-tumor activities in many solid tumors and leukemia cell lines. Bufalin could introduce apoptosis, reverse drug-resistance, and prevent migration and invasion of tumor cells. This paper reviewed the latest research progress of the in vitro and in vivo anti-tumor effect and mechanism of bufalin on a series of cancers, such as hepatocellular carcinoma, lung cancer, colon cancer, gastric cancer, leukemia, bladder cancer, and its formulation study is also summarized for the reference of its further study and application.
Animals ; Antineoplastic Agents ; chemistry ; pharmacology ; therapeutic use ; Bufanolides ; chemistry ; pharmacology ; therapeutic use ; Chemistry, Pharmaceutical ; methods ; Neoplasms ; drug therapy ; pathology

A strain of high-efficiency bioflocculant-producting bacteria,which was named TJ-3,was screened from sewage sludge.The strain was gram-negative and rod-shaped in physiological biochemical test and was identified as Pseudomonas aeruginosa by 16S rDNA Sequencing.According to the growth curve of the TJ-3 strain,the growth stabilization period is long so that Microbial Flocculants(MBF) production is stable.The MBF produced by the TJ-3 strain is able to flocculante kaolin suspension with 98.2%.The MBF activity distribution tests show that most of the active components of the bioflocculant exist in deposition after centrifufation.When pH is 8.5,1%(quality fraction) CaCl2 Solution dosing quantity is 3.5 mL,bioflocculant dosing quantity is 1.5 mL in 100 mL kaolin suspension,the bioflocculant has an optimal flocculation.

Objective To evaluate the prognostic value of serial 18F-fluorodeexyglucose (FDG) PET/CT in patients with nasopharyngeal carcinoma (NPC).Methods Thirty-seven NPC patients who had 18F-FDG PET/CT scan before and after external beam intensity-modulated radiotherapy, were studied retrospectively.All patients were followed for five years.Correlation analysis between metabolic tumor volume (MTV)/uptake volume index (UVI) and survival was performed by Kaplan-Meier analysis, Log-rank test and multivariate Cox model.Results The 5-year overall survival (OS) and disease-free survival (DFS) rates were 70.3% (26/37) and 62.2% ( 23/37 ), respectively.Patients with a lower MTV (MTV＜30 cm3) had significantly higher 5-year OS ( 82.6% ( 19/23 ) ) and DFS (73.9% ( 17/23 )) rates than those with a higher MTV (OS:50.0% (7/14),x2 =5.28, P＜0.05; DFS:42.9% (6/14),x2 =4.84, P＜0.05).Patients with a lower UV1 (UVI＜150) had significantly higher 5-year OS( 87.5%( 21/24 )) and DFS (79.2% (19/24)) rates than those with a higher UVI (OS:38.5% (5/13),x2 =10.72, P＜0.01;DFS:30.8% (4/13), x2 =11.04, P＜0.01).Multivariate analysis showed that UVI and metabolic response (MR) were independent predictors of DFS.Conclusions Tumor volume parameters, UVI and MR, are independent prognostic factors for patients with NPC.Patients with a high UVI may benefit from more aggressive treatment.

Objective To investigate the efficacy of the bioactive artificial vertebrae of a nano- hydroapatite crystals and polyamide 66 composite(n-HA/PA66)to restore the height and architecture of thoracolumbar burst fracture.Methods From December 2003 to February 2006,38 patients(29 males and 9 females)with a mean age of 35.6 years(17-63 years)were treated surgically through anterior ap- proach for decompression and implanted with the bioactive artificial vertebrae of n-HA/PA66 composite to reconstruct the structure of the thoracolumbar burst fractured vertebra.Results All the patients were successfuly followed-up for an average of 8 months,ranging from 6 to 21 months.The bioaetive artificial vertebrac of n-HA/PA66 composite were fused with the receptor bone 3-4 months after operation.The neu- rological function of the patients was restored partially or completely.The thoracolumbar spine was stable during physical examination and the height of thoraeolumbar burst fractured vertebrae that had been restored did not changa during the follow-up.Conclusions Our results show the bioaetive artificial vertebrae of n-HA/PA66 can restore the height and structure of thoracolumbar burst fractured vertebrae and reconstruct the structure of the tboraeolumbar vertebrae effectively,indicating that the bioaetive artificial vertebrae of n- HA/PA66 can be used extensively in clinical spinal surgery.