Objective To investigate static closure functional characteristics of lower urinary tract in continence in late pregnancy of primigravida through perineal ultrasound and urodynamieal measurement. Methods From January of 2003 to December of 2005,83 primigravida undergoing antenatal health care in Shanghai Jiaotong University Affiliated Shanghai Sixth People's Hospital were randomly enrolled in the study, while 28 nulliparous women were recruited as control.The perineal ultrasound and urodynamical measurement were performed at the gestation age of 36-40 weeks,in both groups.We analysed the parameters of lower urinary tract function in late pregnancy compared with nullipara,such as maximal urethral closure pressure(MUCP),functional urethral length(FUL),maximal urethral pressure(MUP), valsalva leak point pressure(VLPP),postvoid residual bladder volume(PVRBV)and volume of first desire to voiding(VFDV).Results The average weight of 83 neonates was(3504?404)g.In all of 83 primigravida PVRBV was less than l0 ml.MUP(110 + 22)cm H_2O(1 cm H_2O=0.098 kPa),MUCP (96?22)cm H_2O and FUL(44?9)mm were significantly increased in the third trimester compared with nullipara(P0.05). There were 33 pregnant women suffering from urinary leakage throughout the terms.The data showed that MUCP was significantly lower in the pregnant women with symptoms of leaking than without leaking. Conclusion The static closure function increased significantly compared with nulliparous women.The VLPP was decreased and had relationship with symptoms of leakage.The results suggest that the function of lower urinary tract in continence in late pregnancy of primigravida is complex.

Medical service system integration follows the logic of system innovation and development.Case studies of the UK,the USA and Australia found that medical delivery system integration is the product of a series of mixed factors.Health care financing and payment mechanism reform,physician team building,stair-cased movement to grassroots of healthcare service,shared clinical norms utilization as well as its gradual development constitute the general logic of such an integration.In the evolution process,the check and balance between the government and market,equity and efficiency have been affecting the integration process all the way.In light of these logics,China should speed up its transform of the integration concept,improve the integration elements,and strengthen the guidance of integration principles during its integration of the medical service integration.

As a treasure resource of novel drug lead compounds, how to rapidly and high-efficiently screen and isolate active components from natural products is critical. Thanks to its high resolution, high automation and flexible integration, online two-dimensional liquid chromatography has great potential for screening active ingredients from complex matrices by integrating a highly specific bio-recognition process into a two-dimensional liquid chromatography system before, on or after the column separation. This review comprehensively summarized recent developments, applications and shortcomings of online two-dimensional liquid chromatography for natural product screening from different integration modes, including pre-column, on-column and post-column screening methods.

The origin and development of round magnetic needle was explored, and the structure of round magnetic needle was introduced in detail, including the handle, the body and the tip of the needle. The clinical opera tion of round magnetic needle were standardized from the aspects of the methods of holding needle, manipulation skill, tapping position, strength of manipulation, application scope and matters needing attention, which laid foundation for the popularization and application of round magnetic needle.
Acupuncture Therapy ; history ; instrumentation ; methods ; standards ; China ; History, Ancient ; Humans ; Medicine in Literature ; Needles ; history ; standards

Objective: To develop and optimize the silybin supersaturated self-microemulsion drug delivery system (SLB-SSMEDDS) and improve the oral bioavailability of SLB in the biological medium. Methods: The formulation of SLB-SMEDDS was selected by solubility test, emulsifying ability of emulsifier and pseudo-ternary phase diagram. The analytic hierarchy process (AHP) was used to evaluate the performance of each prescription to screen the optimal ratio. The type and dosage of precipitation inhibitors (PPIs) was optimized to maintain the supersaturation and duration of drugs in biological media in vitro; Finally, the emulsification effect, emulsion size and surface morphology of SLB-SSMEDDS was comprehensively evaluated in terms of in vitro release and in vitro supersaturation. Results: The SLB-SSMEDDS prescription was Capryol 90-Cremophor RH-Transcutol HP-HPMC-AS MF (10:67.5:22.5:2). The self-microemulsion with a drug loading of 50.19 mg/g was uniform and the emulsion droplets were spherical in shape and uniform in size. And the emulsification time was (30.67 ± 4.16) s, the average particle size was (11.67 ± 0.81) nm, and the PDI was (0.15 ± 0.04). The dissolution rate of SLB-SSMEDDS in FaSSGF and FaSSIF-V2 was significantly increased. And the in vitro dilution and supersaturation could be maintained above 10 within 120 min. Conclusion: SLB-SSMEDDS has a simple preparation process and can improve the stability of traditional SMEDDS, maintain supersaturation effectively and enhance the dissolution of SLB in vitro.

[ ABSTRACT] AIM: To investigate the influence of advanced glycosylation end products-modified bovine serum albumin (AGE-BSA) on mammalian target of rapamycin complex 1 (mTORC1), urokinase-type plasminogen activator re-ceptor ( uPAR) , and cell mobility in the podocytes, and to further explore the probable relationship.METHODS: The conditionally immortalized mouse podocyte cell line was cultured in vitro.MTT assay and immunofluorescence were used to analyze the cell viability and cytoskeleton of the podocytes treated with the stimuli and intervention agents.The activity of mTORC1 and the expression level of uPAR in normal podocytes and podocytes treated with control BSA or AGE-BSA were detected by Western blotting.The migration ability of the podocytes was determined by would-healing assay.Rapamycin was added to inhibit the activity of mTORC1 along with the addition of AGE-BSA to observe the changes of uPAR and the motility of podocytes.RESULTS:No significant difference of the cell viability or cytoskeleton in the podocytes treated with the stimuli and intervention agents was observed.AGE-BSA up-regulated the activity of mTORC1 and the expression of uPAR, and induced the high mobility of the podocytes.Rapamycin obviously reduced the high expression level of uPAR and the increase in the migration ability of podocytes caused by AGE-BSA treatment.CONCLUSION: AGE-BSA might cause the high migration of podocytes through the mTORC1/uPAR signaling pathway.

Objective To constructe ,package and identificate the lentiviral vector with overexpression gene Grp78 .Methods We used lentiviral vector and genetic engineering technology to obtain the aim gene fragment and to constructe recombinant plas‐mid .we prepared competent cells and transform the cells .Through positive clone sequencing ,lentivirus was packaged and virus titer was tested .Results Positive cloning sequence comparison results show that the test was passed .Melt curve did not appear mixed peak ,also did not appear abnormal peak broadening .It means that does not appear pollution ,primer dimers and nonspecific amplifi‐cation in the experiments .Conclusion The construction ,packaging and identification of lentiviral vector with over expression gene Grp78 are sucessful .

BACKGROUNDVelvet antler polypeptides (VAPs), which are derived from the antler velvets, have been reported to maintain survival and promote growth and differentiation of neural cells and, especially the development of neural tissues. This study was designed to explore the influence of VAPs on neural stem cells in vitro derived from embryonic rat brain.

METHODSNeural stem cells derived from E12-14 rat brain were isolated, cultured, and expanded for 7 days until neural stem cell aggregations and neurospheres were generated. The neurospheres were cultured under the condition of different concentration of VAPs followed by immunocytochemistry to detect the differentiation of neural stem cells.

RESULTSVAPs could remarkably promote differentiation of neural stem cells and most neural stem cells were induced to differentiate towards the direction of neurons under certain concentration of VAPs.

CONCLUSIONNeural stem cells can be successfully induced into neurons by VAPs in vitro, which could provide a basis for regeneration of the nervous system.

Animals ; Antlers ; chemistry ; Brain ; embryology ; Cell Differentiation ; Cells, Cultured ; Dose-Response Relationship, Drug ; Glial Fibrillary Acidic Protein ; analysis ; Immunohistochemistry ; Nerve Growth Factors ; pharmacology ; Neurons ; cytology ; Peptides ; pharmacology ; Rats ; Rats, Wistar ; Stem Cells ; cytology ; drug effects

OBJECTIVETo explore a new method to treat brachial plexus root avulsion experimentally by reimplantation combined with transplantation of neural stem cells (NSCs) modified by neurotrophin-3 gene (NT-3).

METHODSThe total RNA was extracted from neonatal rat striatum and the NT-3 cDNA was obtained by reverse transcription and amplified by polymerase chain reaction. The NT-3 gene was transferred into NSCs via the pLEGFP-C1, an expression plasmid vectors. The untransfected NSCs, the pLEGFP-C1 treated NSCs, and the pLEGFP-C1-NT-3 treated NSCs were transplanted into corresponding spinal cord segment with brachial plexus root avulsion. The survival, differentiation, and migration of the transplanted cells were determined under confocal laser scanning microscope or by immunohistochemistry method. The nerve regeneration was evaluated by gross observation, electrophysiological examination and reverse horseradish peroxidase tracing.

RESULTSThe NT-3 gene was successfully amplified and transferred into neural stem cells via the plasmid vectors. The transplanted cells survived, differentiated, and migrated and NT-3 was expressed within the spinal cord. The animals regained some muscle strength which was less than 3-degree muscular strength according to the British Medical Research Council (BMRC) evaluating system. The results of electrophysiological examination and reverse horseradish peroxidase tracing were superior in the pLEGFP-C1-NT-3 group to the NSCs untransfected group or the pLEGFP-C1 group.

CONCLUSIONTransplantation of NSCs modified by NT-3 gene combined with reimplantation is a relatively effective way to treat brachial plexus root avulsion experimentally. It still need further study to improve the results.

Animals ; Brachial Plexus ; injuries ; Neurotrophin 3 ; genetics ; Radiculopathy ; surgery ; Rats ; Replantation ; Stem Cell Transplantation ; Transfection

Adult ; Aged ; Cell Cycle Proteins ; analysis ; Coal Mining ; Cyclin-Dependent Kinase Inhibitor p27 ; Female ; Humans ; Immunohistochemistry ; Lung ; chemistry ; pathology ; Male ; Middle Aged ; Occupational Diseases ; metabolism ; Pneumoconiosis ; metabolism ; Tumor Suppressor Proteins ; analysis