Peritoneal macrophages from thioglycollate-treated C57BL/6 mice were separatedby centrifugation on Percoll discontinuous gradients.Macrophages were so separ-ated into four subpopulations and their tumor cytotoxicity and the effect of sodi-um selenite on different subsets were studied.There was no marked difference inphagocytic activity and Fc recepter activity among the four subpopulations.High-density macrophages activated by MAF were kighly cytostatic and cytolyticto tumor cells,while low-density macrophages were not Peritoneal injection of sodiumSelenite(lmg/kg)augmented macrophage-mediated cytotoxic activity by increasingtheir MAF responsiveness which occurred mainly in the low-density macrophages.sodium selenite did not affect macrophage maturation as the percentage of theperoxidasepositive macrophages remained unchanged,

Objective To explore therapeutic effect and side effect of oral indomethacin for treating patent ductus arteriosus(PDA)in full-term infants.Methods Forty-one full-term infants confirmed PDA by echocardiographically,who were admitted to the neonatal intensive care unit of our hospital from Jan.2004 to Dec.2007,were randomly divided into experimental group(21 cases)and control group(20 cases).Three oral doses of indomethacin [0.2 mg/(kg?time),at an interval of 12 hours] were administered in experimental group,while nothing in control group.Hepatorenal function and blood routine were measured in both groups in 2 days before and after treatment.Urine output and level of serum blood sugar were measured,and abdominal distension,vomiting,bloating,and bleeding were recorded during treatment.Color Doppler echocardiographic examination was performed,heart murmur was stethoscopied,and the rate of ductal closure was recorded at 5 to 7 days after treatment.The infants were followed up at out-patient department at 6 to 12 months after treatment,color Doppler echocardiographic examination was performed,and ductal closure condition was recorded.Results Hepatorenal function and blood routine were normal in experimental group in 2 days before and after treatment.Except that a little gastrointestinal bleeding occurred in one case of experimental group after the second dose of indomethacin,other adverse reactions were not observed during treatment.The ductus was closed in 16 infants in experimental group,the rate of ductal closure was 76.19%,while the ductus was closed naturally in 5 infants in control group,the rate of ductal closure was 25.0% at 5 to 7 days after treatment.There was significant difference in the rate of ductal closure between the experimental and control groups(?2=10.74 P

0.05). ?-EP level of psoriatic patients 1 and normal controls 1 was significantly higher than that of psoriatic patients 2 and normal controls 2 respectively (P0.05) . Conclusion It suggests that there is the correlation between serum ?-EP level and psychological factors. ?-EP is likely to participate in adjusting the whole body state, which provides the foundation for psychologic treatment.

Objective To analyse effects of moxifloxacin solution for aerosol inhalation on inflammatory mediators and blood gas analysis index in patients with chronic obstructive pulmonary disease with respiratory failure.Methods 60 patients who were diagnosed with chronic obstructive pulmonary disease with respiratory failure in our hospital were collected.All patients were randomly divided into experimental group and control group,30 cases in each group.On the basis of conventional treatment, control group were given sulfate for inhalation shating amine alcohol solution 2mg per times, 3 times per day atomization inhalation treatment,and experimental group was given 2 mg/times, 4 times per day atomization inhalation treatment,two were treated for 2 weeks.After the treatment, the serum levels of CRP,TNF-α,IL-10,IL-18 and arterial blood PO2 ,PCO2 levels were detected in all patients.Results Compared with control group post-treatment, the serum levels of CRP, IL-18 and TNF-αwere lower in experimental group (P<0.05), and the serum level of IL-10 was higher;the arterial blood level of PO2 was higher,and the arterial blood level of PCO2was lower in experimental group (P<0.05). Conclusion Effect of moxifloxacin solution for aerosol inhalation can significantly reduce the serum CRP,TNF-αand IL-18 levels, improve serum IL-10 level in patients with chronic obstructive pulmonary disease with respiratory failure, ameliorate PO2 and PCO2 .

Objective To investigate the prevalence of gastroesophageal reflux disease(GERD)in outpatients who visited department of internal medicine in hospitals of Zhejiang province and its risk fac- tors were analyzed.Methods The epidemiologic study was carried out on outpatients with reflex diagnos- tic questionnaire(RDQ).The data was analyzed with Logistic regression methods.Results The preva- lence of GERD in those patients was 7.28%(95% CI:6.87%-7.69%)in preliminary screening.There was significant correlation among gender,age,degree of labour intensity,status of marriage and the oc currence of GERD(P

Objective To explore the application of transitional care based on the Omaha system in postoperative rehabilitation of patients with breast cancer.Methods Seventy-two patients after radical mastectomy were assigned into two groups according to admission time,patients from June to December 2011 were set as the control group,patients from February to December 2012 were assigned to the intervention group,each group contained 36 patients.The patients in the control group received routine nursing,while patients in the intervention group were implemented transitional care program with Omaha system as framework from before discharge to 6-week follow-up after discharge from hospital.Nursing effect was compared between two groups from three aspects such as cognition,behavior and status.Results Twenty-three problems were found in the 6-week follow-up for the intervention group,including environmental domain,psychosocial domain,physiological domain and health-related behavior domain.Knowledge,behavior and status scores of the intervention group 6 weeks after discharge were significantly higher than those of the control group [(3.92 ± 0.48) scores vs.(2.41 ± 0.17) scores,(4.11 ± 0.49) scores vs.(2.83 ± 0.25) scores,(3.09 ±0.52) scores vs.(2.32 ±0.39) scores,t=14.81,15.36,9.42,P＜0.01 or 0.05].Conclusions Transitional care based on the Omaha system shows common problems in rehabilitation of patients with breast cancer after operation,and provides standardized program for rehabilitation nursing.It can achieve better nursing effect.

Objective To investigate the expression of autophagy and the effect of complement C5a/C5aR pathway on autophagy induced by renal ischemia reperfusion injury (IRI).Methods MaleWT and C5aR gene knockout (BALB/C background) mice were selected.The model of renal IRI was established by occluding bilateral renal pedicles with microaneurysm clamps.Mice were divided into wild type BALB/C (WT) group and C5aR gene knock out (C5aRKO) group.The pathology of kidney was assessed by HE staining.The levels of BUN and KIM-1 were detected 24 h after reperfusion.The expression of the autophagy-associated protein (LC3 Ⅱ/LC3 Ⅰ and P62) was measured by Western blotting and immunofluorescence.In vitro,human renal tubular epithelial cells (HK2) were cultured.The expression of LC3 in HK2 cells was investigated by immunofluorescence and Western blotting after being treated with recombinant C5a or C5a combined with C5aR antagonist (C5aRA).Results As compared with WT group,the severity of kidney injury was obviously reduced in C5aRKO group (P＜0.05).After ischemia-reperfusion,the expression of autophagy-related protein LC3 gradually increased with the reperfusion time prolonged.The level of autophagy induced by ischemia-reperfusion was significantly reduced in C5aRKO group as compared with WT group (P＜0.05).In addition,the expression of autophagy-related protein LC3 Ⅱ in HK2 cells was increased with the augment of C5a stimulation concentration in vitro.Blockage of C5aR pathway by C5aRA led to a significant decrease in autophagy (P ＜ 0.05).Conclusion Complement C5a/C5aR pathway promotes renal IRI-induced autophagy.

OBJECTIVE:To study the protective effect of sivelestat sodium on experimental autoimmune encephalomyelitis (EAE) model rats. METHODS:60 Wistar rats were randomly divided into normal control group (normal saline),model group (normal saline),positive drug group [prednisone acetate tablets 5 mg/(kg·d)] and sivelestat sodium low-dose,middle-dose and high-dose groups [5,8,10 mg/(kg·d)] with 10 rats in each group. Except for normal control group,other groups were given guin-ea pig spinal cord homogenate as antigen to produce EAE model,and then given relevant medicine ip since the same day of model-ing,for consecutive 16 d. The neurologic function of mice was scored,and pathological changes of brain and spinal cord were ob-served;the content of IFN-γ,IL-4,CCL3,chemotactic factor CCL5 regulating and activating normal T cell expression and secre-tion were determined. RESULTS:Compared with normal control group,neurological function score and the content of IFN-γ, CCL5 and CCL3 increased,while IL-4 content decreased (P<0.01);myelinoclasis and inflammatory cell infiltration occurred. Compared with model group,neurological function score and the content of CCL3 and CCL5 decreased in positive drug group and sivelestat sodium low-concentration,medium-concentration and high-concentration groups (P<0.01);both myelinoclasis and in-flammatory cell infiltration relieved;the content of IFN-γdecreased,while IL-4 content increased in positive drug group and sivele-stat sodium high-concentration group;IL-4 content increased in sivelestat sodium medium-concentration group (P<0.01);there was no statistical significance in other groups(P>0.05). Above effect depended on drug dose. CONCLUSIONS:Sivelestat sodium can relieve myelinoclasis and inflammatory cell infiltration,and the mechanism may be related to the decrease of IFN-γ content, the increase of IL-4 content,and inhibition of CCL3 and CCL5 expression in peripheral blood.

Objective To estimate the effect of glycoprotein (transmembrane) nonmetastatic melanoma protein B (GPNMB) on the proliferation and migration of as well as melanogenesis in melanoma cells.Methods The expression of GPNMB was detected by immunofluorescence assay in two melanoma cell lines M14 and G-361,as well as in primary human melanocytes.Then,the three kinds of cells each were classified into three groups:experimental group treated with small interfering RNA targeting GPNMB (GPNMB-siRNA),negative control group treated with the negative control siRNA,blank control group remaining untreated.Methyl thiazolyl tetrazolium (MTT) assay,transwell invasion assay and spectrophotometry were performed to evaluate cell proliferation activity,invasion potential and melanin levels,respectively.Statistical analysis was done using Student's t test.Results GPNMB was expressed in both melanoma cells and melanocytes.The transfection with GPNMB-siRNA down-regulated the mRNA and protein expressions of GPNMB in,and markedly suppressed the proliferation and migration of,melanoma cells.In detail,the proliferative activity (expressed as the absorbence value at 570 nm) of M14 and G361 cells was reduced by 35％ and 40％ respectively,the migration activity of M14 and G361 cells by 49％ and 51％ respectively,and the melanin levels in melanocytes,M14 cells and G361 cells by 73％,82％ and 69％ respectively,in the experiment group compared with those in the blank control group.Conclusions The siRNA-mediated silencing of GPNMB could effectively inhibit the proliferation of,invasion of and melanogenesis in melanoma cells,which suggests that GPNMB plays critical roles in the initiation and progression of melanoma.

Objective To investigate the effects of pituitary adenylate cyclase activating polypeptide (PACAP) and its receptor (PACAP-R) on the pathogenesis of psoriasis. Methods The expression of PACAP and PACAP-R in the skin from 10 normal controls, 25 psoriatic lesions and non-lesional skins was measured by immunohistochemical technique. Results The expression of PACAP and PACAP-R was significantly lower in the psoriatic lesional skins than that of the non-lesional skins. The area density and mean absorbance of PACAP and PACAP-R in the lesional skins were significantly lower compared with those in the non-lesional skins (P