Objective To investigate the value of timely duodenal papilla fenestration for reducing the incidence of pancreatitis after endoscopic retrograde cholangiopancreatography (ERCP).Methods The clinical data of 181 patients with difficult biliary cannulatian during ERCP at the Xinhua Hospital of Shanghai Jiaotong University from July 2006 to December 2009 were retrospectively analyzed.Of the 181 patients,98 patients who received traditional incubation were in the control group,and the other 83 patients who received early duodenal papilla fenestration were in the test group.The success rate of selective incubation and incidence of pancreatitis were compared between the 2 groups.All data were analyzed using the t test,chi-square test or Wilcoxon rank sum test.Results The success rate of incubation,incidences of hyperamylasemia and pancreatitis were 85.7％ ( 84/98 ),7.1％ (7/98) and 10.2％ ( 10/98 ) in the control group,and 94.0％ ( 78/83 ),18.1％ ( 15/83 ) and 2.4％ (2/83) in the test group,respectively,and there were significant differences between the 2 groups (x2 =10.12,5.03,4.41,P＜0.05).The numbers of patients with mild,moderate and severe pancreatitis were 3,5 and 2 in the control group,and 1,1,0 in the test group,respectively,and there was a significant difference between the 2 groups ( Z =- 2.11,P ＜ 0.05 ).Conclusion Timely duodenal papilla fenestration is safe and effective in reducing the incidence of pancreatitis for patients with difficult biliary cannulation during ERCP.

OBJECTIVETo study the mechanism of auricular acupuncture for improvement of learning and memory disorders in the rat of vascular dementia (VD).

METHODSThe vascular dementia rat model was made by 4-vessel occlusion method. Four groups, a sham operation group, a normal control group, a model group and an auricular acupuncture group were set up. After acupuncture was given at auricular points, Brain and Kidney. Immunohistochemical analysis, behavioural observation and computer image analysis were made.

RESULTSAuricular acupuncture could decrease significantly the beta-amyloid protein (A beta) immunoreactivive neurons and increase its average optical density in the parietal cortex of the VD rats (P < 0.05).

CONCLUSIONAuricular acupuncture can reduce or inhibit the over-production of Abeta in the brain, so as to improve the learning and memory capacity of the VD model rat.

Acupuncture Points ; Acupuncture, Ear ; methods ; Amyloid beta-Peptides ; analysis ; Animals ; Dementia, Vascular ; therapy ; Immunohistochemistry ; Male ; Memory Disorders ; therapy ; Rats ; Rats, Wistar

OBJECTIVETo probe into the mechanisms of thread implantation at Zusanli(ST 36) and Chinese herbs in treatment of chronic renal failure(CRF).

METHODSCRF rat model was made by Platt subtotal nephrectomy. They were divided into 5 groups, sham operation group, model group, Chinese herbs group, thread implantation group and thread implantation plus Chinese herbs group. After treatment of 8 weeks, serum parathyroid hormone (PHT), transforming growth factor beta1 (TGF-beta1) expression in residual renal cells, malondialdehyde(MDA) content in the residual renal tissue, serum urea nitrogen(BUN) and creatinine(Scr), protein in urine and pathological changes were investigated.

RESULTSThe above indexes after treatment by thread implantation at acupoint, Chinese herbs, and acupoint thread implantation plus Chinese herbs showed begin reversion, especially, the most obviously improvement in the acupoint thread implantation plus Chinese herbs treatment group.

CONCLUSIONThe mechanism of acupoint thread implantation and Chinese herbs in improvement of CRF is related with decrease of PTH, inhibition of TGF-beta1 expression, decrease of MDA content and resisting lesion of renal fibrosis.

Acupuncture Points ; Animals ; Drugs, Chinese Herbal ; pharmacology ; Kidney Failure, Chronic ; blood ; therapy ; Male ; Parathyroid Hormone ; blood ; Rats ; Rats, Wistar ; Transforming Growth Factor beta ; blood ; Transforming Growth Factor beta1

OBJECTIVETo evaluate the collagen changes of allografting an acellular dermal matrix (allo-ADM).

METHODSThe allo-ADM was grafted underneath the skin of SD rats. The content of collagen and the proportion of type I to III collagen was examined with a biochemical assay.

RESULTThe content of collagen and the proportion of type I to III collagen in the allo-ADM group showed no significant changes.

CONCLUSIONThe allo-ADM could keep long time in the body and it may be an ideal material for soft tissue filling.

Animals ; Collagen ; analysis ; Dermis ; metabolism ; transplantation ; Female ; Male ; Postoperative Period ; Rats ; Rats, Sprague-Dawley ; Skin Transplantation ; methods ; Transplantation, Homologous

Objective: To explore the expressions of transient receptor potential vanilloid 1 (TRPV1) and TRP ankyrin 1 (TRPA1) in the dorsal root ganglion (DRG) and their action mechanisms in the rat model of orchialgia. METHODS: The models of orchialgia were established in male SD rats by injection of 2% acetic acid into the testis. Then the number of spontaneous pain responses and withdrawal latency in the model rats were recorded by behavioral tests and the expressions of TRPV1 and TRPA1 in T13－L1 DRGs determined by RT-qPCR, Western blot and immunofluorescence staining. RESULTS: Compared with the normal control rats, the orchialgia models showed a significant increase in the number of spontaneous pain responses (0.13 ± 0.35 vs 22.63 ± 3.42, P<0.01) and a decrease in the withdrawal latency at 4 hours after injection (［12.75 ± 1.50］ vs ［4.85 ± 1.00］ s, P<0.05). The mRNA expressions of both TRPV1 and TRPA1 were observed in the membrane of the neurons in the DRG, the former increased by 1.77 times and the latter by 1.75 times that of the control (P<0.05). CONCLUSIONS The expressions of TRPV1 and TRPA1 were up-regulated in the DRG of the rat models of orchialgia, which may be involved in the allodynia and hyperalgesia of the rats.
Acetic Acid ; Animals ; Ganglia, Spinal ; metabolism ; Hyperalgesia ; chemically induced ; metabolism ; Male ; Membrane Glycoproteins ; Oxidoreductases ; Rats ; Rats, Sprague-Dawley ; TRPA1 Cation Channel ; metabolism ; TRPV Cation Channels ; metabolism ; Testicular Diseases ; chemically induced ; metabolism ; Up-Regulation