Endoscopic retrograde cholangiopancreatography (ERCP)has become an important method for the diagnosis and treatment of cholangio -pancreatic duct diseases.Post -ERCP pancreatitis (PEP)is the most common complication and its incidence has increased up to 40% in recent years.The prevention of PEP has always been a hot topic in clinical research.This article reviews the research advances in the pharmacological prevention of PEP and points out that controlled clinical trials with a large sample size are still needed to investigate the effect of preventive drugs,and further studies should focus on optimal medication time,route of administration,and dose.In addition,de-mographic features of populations from different countries and different age groups should be taken into consideration.

0.05),and with significant differences as the TCM group and the WM group compared with TCM plus WM group(P

Sepsis,a complex clinical syndrome resulting from a harmful and damaging host response to infection, is the leading cause of mortality in intensive care units.Early diagnosis and appropriate intervention can improve the prognosis of patients with sepsis.Many studies have confirmed that sepsis at different stages is in different immune status.Priority used to be given to systemic inflammatory response, but immune-suppression has become the focus of study. Immune-suppression and secondary infection are the major causes of death of patients with sepsis.Study of sepsis is shifting to immune-suppression and its regulation mechanisms.

Objective To summarize the experimence of nonmyeloablative allogeneic peripheral blood cell transplantation in the treatment of chronic leukemia. Methods Seven patients, including 6 cases of chronic myeloid leukemia (in chronic phase), one of chronic lymphoid leukemia (in third stage), with HLA-identical siblings donor received allogeneic peripheral blood stem cell transplantation after a nonmyeloablative conditioning. Results All of them were engrafted with donor cells (4 with full of donor cells grafted, 3 with mixed chimerism) and recovered hematopoiesis (WBC recovered to more than 0.5 ?10 9/L during postoperative 9 day to 21 day and platelet recovered to more than 30?10 9/L during postoperative 11 day to 28 day). One of them developed a GVHD of degree IV. One of them developed aGVHD of degree I. Conclusion This procedure is much safe, effective and of less complications than the myeloablative condioning regimens and may represent another new approach in the management of patients with chronic leukemia.

Objective:To study the effects of hydroxyapatite(HA) coating on sandblasted and acid-etched(SLA) surface of titanium dental implants(HA-SLA-Ti) on the biologic characteristics of marrow-origin osteoblasts(MOOBs).Methods:Coating of HA on the SLA surface of titanium dental implants were formed by ion beam assisted deposition (IBAD) method. MOOBs,cultured in vitro,were seeded onto the surface of HA-SLA-Ti and SLA-Ti respectively, the growth of MOOBs on the two kinds of samples were observed by scaning electron microscope.The proliferation index, alkaline phosphatase(AKP) activity, osteocalcin(BGP) content of MOOBs and mRNA relative expression level of osteopontin(opn) were examined and compared between two groups.Results: MOOBs grew well on the surface of HA-SLA-Ti; the proliferation index, AKP activity and BGP content of MOOBs were higher in HA-SLA-Ti group than those in SLA-Ti group(P

Objective To observe the change regularity of IL-1?, IL-6, IL-10 and explore the mechanism of Yingfen syndrome (YS) in epidemic febrile diseases. Methods One hundred and four cases were divided into acute leukemia (AL) group and non-acute leukemia (NAL) group according to different diseases. According to syndrome differentiation of TCM, AL group was classified to 10 cases for Weifen syndrome (WS), 12 cases for Qifen syndrome (QS), and 20 cases for YS. NAL group was classified to 20 cases for WS, 24 cases for QS and 18 cases for YS. Fifteen healthy persons were selected for comparison. The levels of IL-1?, IL-6 and IL-10 in YS, WS and QS of various diseases were observed. Results In YS period, IL-1? and IL-6 increased continuously, while IL-10 decreased markedly, compared with healthy people (P 0.05), while on difference in IL-6, IL-10 between different diseases (P

Objective To investigate the effect of infusion of sodium bicarbonate in amniotic cavity and exchange of amniotic fluid for fetus with distress and acidosis. Methods The patients included 40 cases of oligohydramnios with mild and serious abnormality of fetal heart rate and amniotic fluid contamination of degree Ⅱ or more during the labor. The 40 cases had exchange of amniotic fluid with infusion under continuous monitoring. Twenty of them had infusion with 5% sodium bicarbonate into amniotic cavity; the other 20 cases received 5% sodium bicarbonate intravenous in fusion. After the labor all the patients had test of arterial blood gas in umbilical cord and the fetuses were evaluated with Apgar score. Results (1)the effective rate was 88% in the group of infusion into amniotic cavity and 85% in the group of exchange of amniotic fluid. (2)The arterial blood pH, PO_2, HCO~-_3, ABE, SBE in the group of amniotic cavity infusion with 5% sodium bicarbonate were all higher than group of Ⅳinfusion, however PCO_2 was significantly lower than the group of Ⅳ(P

Objective To compare the phenotype of myeloid derived suppressor cells (MDSCs) separated from the bone marrow of mice 3 d and 7 d after cecal ligation and puncture ( CLP) and to elucidate its potential role in the accumulation and immuno-function of MDSCs by determining the expression of microRNA-146a(miR-146a)in order to explore the effect of miR-146 a on immonosuppression of MDSCs in sepsis .Methods A septic model was prepareol by CLP in adult male C57BL/6J mice.MDSCs(expressing cell-surface CD11b and GR-1 antigens )from bone marrow were harvested 3 and 7 days after CLP and were separated with magnetic bead sorting technique .Then,cytokines secretion and arginase-I activity were detected and the T cell proliferation in vitro and the expression of miR-146a of MDSCs (3 d and 7 d after CLP)were observed.Results MDSCs secreted mostly such promoting inflammatory factors as TNF-α, IL-6 3 days after CLP, but 7 days after CLP , they primarily secreted IL-10 and TGF-βwhich were anti-inflammatory factors . MDSCs had potent immunosuppressive properties by increasing T cell suppression in a late anti-inflammatory phase ( CLP3 d vs CLP7 d, P<0.05).In the meantime,miR-146a of the MDSCs in bone marrow was overexpressed in septic mice at 7 days(P<0.05). Moreover,the expression of miR-146a of the MDSCs in bone marrow of septic mice was higher at 7 days than at 3 days after CLP(P<0.05).Conclusion The data indicate that the phenotype of MDSCs evolves through early pro -inflammatory phase into the late anti-inflammatory phase .MDSCs have potent immunosuppressive properties in the late phase of sepsis . miR-146 a might play a crucial role in the regulation of immunosuppressive activity of MDSCs in late sepsis .

0.05). Conclusion:Ti-29Nb-13Ta-4.6Zr alloy is histocompatible.

Objective To study the influence of oral antigens on the expression of costimulatory molecules CD80/CD86 on the surface of M and to investigate the genesis of pregnancy immunological tolerance induced by oral antigens through CD80/CD86. Methods Mice of spontaneous abortion(CBA/J?DBA/2) were divided into two groups: immune group and non-immune group.Trophoblast membrane antigen-2(TMA2)or ovum albumin(OVA) was administered orally to the mice in the immune group.Mice of normal pregnancy(CBA/J?BALB/c) were served as controls.The number of CD80/CD86 M of spleen and mesenteric lymph node(MLN) were determined by double-label FCM method. Results In the MLN,CD80 M of non-immune group was increased significantly as compared with that of the control group(P