Objective:To build an HPLC method for the determination of baicalin and geniposide in Ganxueguanliu Huoxue cap-sules. Methods:An Agilent Eclipse XDB-C18 (150 mm × 4. 6 mm, 5μm) column was chosen for the analysis. The mobile phase con-sisted of 0. 2% phosphoric acid (A) and methanol (B) with gradient elution. The flow rate was 1. 0 ml·min-1. The detection wave-length was set at 238 nm and the column temperature was 25℃. Results:A good linear relationship was observed within the range of 0. 418-8. 360 μg·ml-1 for baicalin (r=0. 999 9) and 0. 226-4. 524μg·ml-1 for geniposide (r=0. 999 9). The average recovery of baicalin and geniposide was 99. 79% (RSD=1. 55%, n=6) and 100. 2%(RSD=2. 05%, n=6), respectively. Conclusion: The method is rapid, convenient and specific, which can be used for the content determination of baicalin and geniposide in Ganxueguanliu Huoxue capsules.

Objective To assess the clinical value of laparoscopic colorectal resection combined with simultaneous radiofrequency ablation for liver metastases.Methods Twenty-two patients with colorectal cancer and synchronous liver metastases were treated by laparoscopie colorectal resection and simultaneous radiofrequency ablation(RFA)in Third People's Hospital of Chengdu from December 2001 to July 2006.Areas of colliquative necrosis were detected by contrast-enhanced computed tomography postoperatively.The outcomes were analyzed by chi-square test.Results Of all patients,8 had muhiple liver metastases,16 had complications.Thirty-one liver metastases were treated by RFA,and no complication oecurred.The mean postoperative hospital stay was(14±5)days,and there was no perioperative death.Five of the 22 patients were identified as incomplete ablation of the tumor,and the RFA was reperformed.The recurrence of liver metastases in the RFA necrotic zone was observed in 4 patients,and RFA was reperformed on 2 of them.Six patients died,and 2 of them died of liver metastases recurrence in the RFA necrotic zone.The recurrence rate of liver metastases and mortality was 18%(4/22)and 27%(6/22),respectively.The recurrence rate of patients with the diameter of the metastatic lession≥2.0 cm was significantly higher than those with the diameter of the metastatic lession＜2.0 cm(x2=5.867,P＜0.05).Conclusions Laparoseopie colorectal resection combined with simultaneous RFA provide a curative opportunity for colorectal cancer patients who are old and have multiple liver metastases,complications,poor tolerance of operation,and for patients whose tumors are difficult to resect.

Objective To evaluate the clinical value of adenosine triphosphate (ATP) determination in CD4+ cells in cytomegalovirus pneumonia after renal transplantation.Methods The ATP level of CD4+ T cells was measured by ImmuKnowTM kit.The ATP levels were determined in 187 renal transplant recipients before and 30,60,90,180 days after operation,and at the time of CMV pneumonia and 4 weeks after treatment of CMV pneumonia.The associations between ATP levels and CMV pneumonia were analyzed.Analysis of variance (ANOVA),Pearson-Spearman and relative risks were used for data analysis.Results 17 cases out of 187 renal transplant recipients were diagnosed as CMV pneumonia (9.1％),and the onset of CMV pneumonia started on the (2.8 ±1.2)month after renal transplantation.ATP concentrations in CD4+ T cells were significantly lower after operation than those before operation (P＜0.01).ATP concentrations reached the lowest on the about postoperative day 90 (P＜0.05),then increased gradually.In 17 recipients with CMV pneumonia,the ATP levels before and 30,90 days after operation,at the time of CMV pneumonia and 4th week after treatment of CMV pneumonia were (376 ±182),(283 ± 146),(196 ± 112),(145 ± 102) and (236 ± 117) μg/L respectively.ATP levels at the time of CMV pneumonia were significantly lower than any other time points (P＜0.05).There was close correlation between ATP levels and CMV pneumonia.Conclusion The determination of ATP in CD4+ cells could reflect the status of cell-mediated immunity in renal transplant recipients,and could evaluate the severity and prognosis of CMV pneumonia and guide the clinical treatment.

Objective To investigate the proliferative characteristics of fibroblast-like synovial cells (FLS)in osteoarthritis in vitro and the mechanism of the immunosuppressive effect of total glucusides of paeony(TGP).Methods FLS of OA and non-inflamed synovium(NS)were cultured and identified in vitro in the presence or absence of TGP.After incubation,the survival fraction(SF)of FLS was evaluated by MTI' and the TNF-?,IFN-?and bFGF level in cultured FLS supernatant was measured by ELISA.The expression of FLS c-los mRNA and cell cycle of OA-FLS was observed by RT-PCR and flow eytometry respectively at the same time.Results No statistical significant differences were noted between the OA and NS FLS in pro- liferating double time.High doses of TGP suppressed FLS-SF more evidently in OA patients than in NS(P0.05).Conclusion High dose TGP can inhibit OA-FLS proliferation,modulate cy- tokine secretion and c-fos expression in OA.This suggests that TGP has immunosuppressive effect on OA syn- ovitis,probably by preventing the synovial hypertrophy in OA.

BACKGROUND:It is important to establish an ideal mouse model of severe aplastic anemia for investigating the mechanism and finding new therapies for aplastic anemia. OBJECTIVE:To establish a severe aplastic anemia mouse model by using recombinant human interferon-γand busulfan. METHODS:Sixty healthy Kunming female mice were randomly divided into two groups:model group (n=50) and control group (n=10). The model group was given recombinant human interferon-γat a dose of 1×104 U/d by intraperitoneal injection and busulfan at a dose of 18 mg/(kg·d) through stomach feeding for 7 days. The same volume of physiological saline was given to control group. Multi-parameters, including general condition, body weight, blood cellcount, morphology and biopsy of bone marrow were analyzed in two groups. RESULTS AND CONCLUSION:At day 7 after treatment, the weight, white blood cellcount, hemoglobin, blood platelet, reticulocyte count in model group were significantly lower than control group (P<0.05). Bone marrow smears and biopsy of model group showed marked reduction of bone marrow proliferation and increases of percentages of non-hematopoietic cellclusters and adipose tissue. The oil drop and fat vacuole were apparently seen in the model group. Severe aplastic anemia mouse model can be established by using recombinant human interferon-γand busulfan successful y, which is economic, stable and easy to operate.

Objective To explore the clinical effect of renal transplant from donation after citizen's death (DCD) donors with acute kidney injury (AKI).Methods This was an observational retrospective study of 622 patients who underwent renal transplantation from 312 DCD donors' kidneys at the First Affiliated Hospital of Xi'an Jiaotong University from December 2011 to December 2016.The transplant patients were divided into AKI group and non-AKI group according to the Acute Kidney Injury Network (AKIN) criteria based on initial and terminal creatinine values.We evaluated and compared transplant outcomes of these two groups.Results There were 131 donors with AKI,and the incidence of AKI was 42.0 ％.AKI group and non-AKI group recipients respectively had DGF in 20.2％ and 7.2％ of cases (P＜0.01),153.6 ± 56.2 and 119.3 ± 40.7 μmol/L of serum creatinine (SCr) levels at 1st month (P＜0.01),and 38.5 ± 14.1 and 57.6 ± 23.4 ml· min-1 (1.73 m2)-1 of eGFR at 1st month (P＜0.01).There was no significant difference in SCr and eGFR between two groups at 1st year after transplantation.Conclusion Most of kidneys from DCD donors with AKI can be considered for transplantation.Renal transplantation of organs from DCD donors with AKI showed greater DGF but good outcomes.

OBJECTIVETo explore the immune mechanism of moxibustion on protecting gastric mucosa injury.

METHODSForty healthy SD rats were randomly divided into four groups: a blank group, a model group, a moxibustion acupoint group and a moxibustion non-acupoint group, 10 rats in each one. Eight days before model establishment, moxibustion at "Zusanli" (ST 36), "Zhongwan" (CV 12), "Guanyuan" (CV 4), "Pishu" (BL 20) and "Weishu" (BL 21) was applied in the moxibustion acupoint group while these acupoints' controlled points were selected in the moxibustion non-acupoint group, and no treatment was given in the model group, once a day in three groups for continuous 16 days. The helicobacter pylori (Hp) model was established by intragastric administration of Hp. HE staining microscopic examination was used to observe inflammation severity in gastric mucosa, and enzyme-linked immunosorbent assay (ELISA) was adapted to measure content of heat shock protein (HSP) 72, TNF-alpha and IL-1beta, and real-time quantitative PCR was used to measure the expression of TLR2 mRNA, TLR4 mRNA, CD14 mRNA and MyD88 mRNA in peripheral blood mononuclear cells, and western blot method was used to measure content of NFkappaB and IkappaBalpha in peripheral blood mononuclear cells.

RESULTSCompared with the blank group, the expression of HP could be seen in the smear of gastric mucosa by Gram's staining in the model group; the inflammation severity score was obviously increased as well as content of serum HSP 72 and TNF-alpha and IL-1beta in gastric tissue; and expression of TLR2, 4 mRNA, CD14 mRNA, MyD88 mRNA, NFkappaB was increased (P < 0.01), but the expression of IkappaBalpha was reduced (P < 0.05). After the moxibustion, the inflammation severity score was reduced in the moxibustion acupoint group, and the content of serum HSP 72 was increased, and the expression of TNF-alpha and IL-1beta in gastric tissue and expression of TLR2 mRNA, TLR4 mRNA, CD14 mRNA, MyD88 mRNA and NFkappaB were reduced (P < 0.01), but the expression of IkappaBalpha was increased (P < 0.05). The differences between the moxibustion non-acupoint group and the model group were not significant (P > 0.05).

CONCLUSIONThe pretreatment of moxibustion at acupoints could induce the over expression of serum HSP 72. By combining TLR 2 and 4 receptors to trigger receptor signal transduction pathways, the releases of downstream signal substances are regulated; as a result, the releases of related immune substances are regulated to relieve the gastric mucosa injury of rats with HP gastritis.

Acupuncture Points ; Animals ; Female ; Gastritis ; immunology ; therapy ; Helicobacter Infections ; genetics ; immunology ; therapy ; Helicobacter pylori ; physiology ; Humans ; Interleukin-1beta ; genetics ; immunology ; Male ; Moxibustion ; NF-kappa B ; genetics ; immunology ; Rats ; Rats, Sprague-Dawley ; Tumor Necrosis Factor-alpha ; genetics ; immunology

OBJECTIVETo investigate effect of particle size on oral absorption of silymarin-loaded solid lipid nanoparuicles.

METHODSolid lipid nanoparticles (SLN) of various sizes (150 nm, 500 nm and 1000 nm) using Compritol 888 ATO as the material and silymarin (SM) as a model drug were prepared. Silybinin concentration in plasma of rats were determined by RP-HPLC with UV detector. The main pharmacokinetic parameters were calculated by 3p97.

RESULTResults showed that the AUC of 150 nm SLN was 2.08 fold that of 500 nm SLN and 2.54 fold of 1000 nm SLN treated orally to rats (P < 0.05). The oral bioavailability of 150 nm SLN was remarkably higher than the other two size SLN.

CONCLUSIONThis has important implications in designing of SM-SLN as a new oral drug delivery system.

Administration, Oral ; Animals ; Area Under Curve ; Biological Availability ; Drug Carriers ; Drug Delivery Systems ; Excipients ; Fatty Acids ; Female ; Male ; Milk Thistle ; chemistry ; Nanostructures ; Particle Size ; Plants, Medicinal ; chemistry ; Rats ; Rats, Sprague-Dawley ; Silymarin ; administration & dosage ; isolation & purification ; pharmacokinetics

Objective To summarize the incidence and treatment experience of the effectiveness and adverse reactions of the different immunosuppressive protocols and to increase the long-term survival rate in kidney recipients. Methods Single-center retrospective analysis was performed on 3102 cases of kidney transplant recipients in effectiveness and adverse reactions of different immunosuppressive protocols. The immunosuppressive protocols were as follows: CsA + Aza + Pred,low dose CsA + MMF + Pred, low dose Tac + MMF + Pred, low dose CsA + SRL + Pred, and low dose Tac+ SRL+ Pred. Results The 1-, 5-, 10-year survival rate of patients/kidney in low dose CsA + MMF + Pred protocol was higher than that in CsA + Aza + Pred protocol. The incidence of adverse reactions, such as hypertension, hyperuricemia, kidney and liver toxicity, and leukopenia was significantly lower, but the incidence of diarrhea was significantly higher in CsA + MMF + Pred protocol than in CsA + Aza + Pred protocol (all P＜0. 01). The incidence of hyperglycemia was significantly higher (P＜0. 05), and that of hairy and gingival hyperplsia was significantly lower (P＜0. 05) in low dose Tac+ MMF+ Pred than in low dose CsA+ MMF+ Pred protocol. The incidence of hyperlipidemia in low dose CsA (or Tac)+ SRL + Pred was significantly higher than in CsA (or Tac)+ MMF+ Pred protocol (P＜0. 05). The incidence of hirsutism in low dose Tac + SRL + Pred was significantly lower than that in CsA + SRL + Pred protocol (P ＜ 0. 05). The incidence of hyperglycemia in low dose Tac + SRL + Pred was significantly higher than that in low dose CsA + SRL + Pred protocol. Conclusion The triple drug protocol with a low dose of CsA (or Tac)+ MMF+ Pred significantly improved the survival of renal transplant recipients and graft, and reduced the incidence of adverse reactions, especially Tae + MMF + Pred protocol. Adjustment of the immunosuppressant dosage and protocol, improvement of eating habits, exercise, reduction of blood pressure, reduction of blood lipid, and control of blood glucose were particularly important in preventing and controlling adverse reactions during kidney transplantation.

BACKGROUND:As the high proliferation and low apoptosis of the bone marrow in polycythemia vera patients, hematopoietic stem cels transplanted into NOD/SCID mice can differentiate into erythroid cels, but whether hematopoietic stem cels transplantation could improve the hematopoietic function of aplastic anemia mice is not yet reported. OBJECTIVE:To investigate whether transplantation of bone marrow mononuclear cels with JAK2V617F mutation from polycythemia vera patients can influence hematopoietic reconstruction in aplastic anemia mice. METHODS:Severe aplastic anemia mouse models were established by using recombinant human interferon-γplus busulfan, and then, these mouse models were randomly divided into experimental group (n=10) and control group (n=10). Bone marrow mononuclear cels isolated from polycythemia vera patients with positive JAK2V617F mutation were transplanted into the mice in the experimental group via tail vein at 5 days after drug withdrawal.The same volume of normal saline was administered to the control group. Routine peripheral blood test, morphology of bone marrow cels, bone marrow biopsy, and percentage of CD45+ cels in the peripheral blood and marrow were determined at 14 days after transplantation. RESULTS AND CONCLUSION: At 14 days after transplantation, pancytopenia occurred in the experimental group, bone marrow smears showed scattered lymphocytes and hematopoietic progenitors, and bone marrow biopsy presented that hematopoietic tissues were reduced and a smal amount of granulocyte cels and erythroblasts could be seen, but megakaryocytes were rare. In contrast to the control group, there was no improvement in the hematopoietic function of mice in the experimental group. CD45+ cels were detectable in the peripheral blood and bone marrow in the experimental group, but not in the control group; and a higher percentage of CD45+ cels was measured in the bone marrow than in the peripheral blood of experimental group mice. Experimental findings indicate that bone marrow mononuclear cels from polycythemia vera patients with positive JAK2V617F mutation can be engrafted into aplastic anemia mice, but cannot improve the hematopoietic function of mice.