Objective:To assess the value and indication of endoscopic intervention for acute severe pancreatitis(ASP).Methods:A series of consecutive patients with (26 cases) was treated mainly with endoscopic naso-biliary drainage(ENBD),sphincterotomy (EST) as well as drugs,Abdominal pain duration:raised serum amylase period surgical intervention rate mortality rate and average be in hospital number of days.Results:Abdominal pain duration was (2.5±1.5) days in treatment group with endoscopic and (5.1±2.4) days in control group respectively (P<0.05),raised serum amylase period was (2.8±1.3) days in treatment group with endoscopic and (4.8±1.8) days period in control group respectively(P<0.05),mortality rate was 3.85% (1/26) in treatment group with endoscopic while 16.67% (5/30),P<0.05,average be in hospital number of days was (17.2±5.2) days in treatment group with endoscopic and (26.2±18.2) days in control group respectively.Conclusion:ENBD+EST the intraductal pressure can be lowered and the cause of occlusion be relieved with therapeutic effect.It is considered that endoscopic intervention is a practic of choice for selected.

Acupuncture Points ; Aged ; Aged, 80 and over ; Bloodletting ; Female ; Humans ; Middle Aged ; Pruritus ; therapy

Glioma is the most common form of brain cancer. Despite recent advances in the treatment of solid tumors, there are few effective treatments for malignant gliomas due to its infiltrative nature. It has important significance to improve the treatment of glioma through in-depth understanding the intracerebral metabolic characteristics and pharmacokinetics of chemotherapeutics. Brain microdialysis (B-MD), an effective method to monitor central nervous system anticancer drug disposition, conditions of drugs through the blood-brain barrier, basic pathophysiologic metabolism, bioactive compounds and the changes of neurotransmitter in brain, provides the unique opportunity to allow the simultaneous determination of unbound concentrations of drugs in several tissues, and directly measure gliomas biochemistry continuously. B-MD has been able to monitor the change of brain drugs, metabolites and neurotransmitters, dynamic analysis of the drug concentration and pharmacological effect after administration, pharmacodynamic interaction between drugs, receptor mechanism of drug transport, as well as feedback information of internal environment. B-MD is expected to provide reference for clinical individual chemotherapy of glioma, but also provide powerful tools for the evaluation of new anticancer drugs in vivo. In this review, a comprehensive overview of B-MD for studies on glioma is elucidated with special emphasis on its application to neurochemistry and pharmacokinetic studies.
Animals ; Antineoplastic Agents ; pharmacokinetics ; Blood-Brain Barrier ; Brain Neoplasms ; metabolism ; Glioma ; metabolism ; Humans ; Magnetic Resonance Spectroscopy ; Metabolomics ; methods ; Microdialysis ; methods ; Neurotransmitter Agents ; pharmacokinetics ; Pharmaceutical Preparations ; metabolism ; Positron-Emission Tomography

BACKGROUND:Adipose-derived stem cels are a kind of mesenchyam stem cels with multipotent differentiation capacity, which have more advantages than bone marrow mesenchymal stem cels in tissue engineering research. OBJECTIVE: To establish a method to isolate and purify adipose-derived stem cels from human subcutaneous adipose tissues folowed byin vitro amplification and osteoblastic/adipogenic differentiation.
METHODS: Adipose-derived stem cels were isolated from human subcutaneous adipose tissue and cultured by density gradient centrifugation and adherent culture. Cel morphology and growth features were observed under inverted microscope. Adipose-derived stem cels at passages 2 and 5 were selected for viability measurement using cel counting kit-8 method, and then cel growth curves were drawn. The immunophenotype identification was analyzed by flow cytometry. Passage 5 cels underwent osteoblastic/adipogenic induction to confirm the multi-differentiation potential.
RESULTS AND CONCLUSION: (1) Using density gradient centrifugation and adherent culture method, high-purity human adipose-derived stem cels can be successfuly isolated from human adipose tissues. (2) The growth process of human adipose-derived stem cels includes stagnant phase, logarithmic phase and plateau phase, which meets the growth rhythm of normal cels. Moreover, the population doubling time is shorter. (3). Human adipose-derived stem cels are positive for stem cel-related antigens, with low immunogenicity and the multi-differentiation potential. (4) Labeling human adipose-derived stem cels with DAPI is a simple efficient labeled method, and the labeling rate is high but the cytotoxicity is low

Adolescent ; Adult ; Female ; Humans ; Male ; Mercury Poisoning ; diagnosis ; therapy ; Middle Aged ; Occupational Diseases ; diagnosis ; therapy ; Retrospective Studies ; Young Adult

Child, Preschool ; China ; epidemiology ; Humans ; Infant ; Infant, Newborn ; Language Development ; Sampling Studies

Objective To study the changes of learning-memory ability and synapse of hippocampus after radiation injuries. Methods Sprague-Dawley rats were grouped according to radiation dose to 20Gy group,30Gy group radiated by linear accelerator and control group were used before radiation and 120 days after radiation. Morris maze test were taken to study the learning and memory ability of rats in each group. Average escape latency and search strategy were scaled and analyzed in each group. The parameters of synapse in CA3 area of hippocampus were studied by using electron microscope and image analyzer. Results AEL of 20Gy group was (41. 17 ±10.76 ) s and score of SS was 27.13 ± 2.34 after 120 days' radiation but AEL of 30 Gy group was (78.49 ± 9.32)s and the score of SS was (23.19 ± 7.65 ) nm. There were significant statistic differences Compared with control group and before radiation (P ＜ 0.05 ). The thickness of PSD of 20 Gy group was ( 22.03 ± 6.84 ) nm after 120days' radiation and (23.19 ± 7.65 )nm in 30 Gy group. There were significant statistic differences compared with control group and before radiation. It was observed that both in 20 Gy and 30 Gy group' s the length of synaptic activity area was shorter,the curvature of synaptic interface was smaller,the width of synaptic cleft and the thickness of PSD was narrower than that of control group. Conclusion There was close relation between the changes of learning-memory ability and synapse of hippocampus after radiation injuries.

Cell viability of Pichia pastoris was detected by flow cytometry (FCM) with two reagents fluorescein diacetate (FDA) and propidium iodide (PI). Compared with FDA/PI double-stained dot plots and PI single-stained dot plots,the latter could divide dead and living cells into two separate zones,and get the correct proportion. Then PI single-stained method was used to detect the change of cell viability in Pichia patoris fermentation. At glycerol batch and fed-batch phase,little dead cells were detected. At methanol fed-batch phase,cell viability decreased when cell weight increased,and was only 73.8% at 88 h.

The intracellular hepatitis B surface antigen (HBsAg) content per cell was increased by 7.2-fold in the culture with 1.5% dimethyl sulfoxide (DMSO) compared with that in the control without DMSO, while the extracellular HBsAg production and specific productivity were only improved by 70% and 3.2-fold, respectively. Electron microscope has been employed to reveal large dilated structures within recombinant CHO cells in the presence DMSO. The dilated structures have a distribution within whole cytoplasm, and some dilated areas were engulfed in the nucleus. These large, dilated structures were not observed in the control. Immunogold labeling was used to discover the accumulated HBsAg was localized within these dilated areas, and some HBsAg-specific labels were detected in the nucleus membrane, owing to the encroachment of the dilated areas upon nucleus. The result could help to reveal the mechanism of intracellular HBsAg accumulation in the presence of DMSO.

Objective To evaluate the possibility of diffusion tensor imaging(DTI)in detecting and quantifying the Wallerian degeneration of optic radiation in occipital lobe chronic infarction.Methods 20 patients with unilateral occipital chronic infarction were undergone DTI.Quantitative fractional anisotropy(FA)and mean diffusivity(MD)were obtained from the ipsilateral optic radiation of the occipital lobe infarction and compared with that of contralateral region using the independent samples t-test.Results On the three dimensional color-coding tensor fractional anisotropic map,the regions of occipital lobe chronic infarction were markedly low signal intensity,the FA value and MD value were 0.274?0.062 and(1.226?0.372)?10-3mm2/s,while in the contralateral region of optic radiation,FA and MD values were 0.495?0.035 and(0.775?0.070)?10-3mm2/s respectively,there was significant difference in FA and MD values in comparing both side(P〈0.01).Conclusion DTI can detect and quantify the Wallerian degeneration in optic radiation after occipital lobe chronic infarction.