Objective To analyze the etiology and clinical characteristics of infectious mononucleosis-like syndrome (IMLS).Methods Eighty-seven children with IMLS in a hospital from January 2006 to September 2013 were per-formed pathogenic detection,then clinical features were summarized and analyzed.Results The top 5 pathogens in IMLS were Mycoplasma pneumoniae (MP,n=20 ),cytomegalovirus (CMV,n=13),simplex herpes virus(HSV, n=11),Chlamydia (CP,n=11),and parvovirus B19 (Hpv B19,n=9 ),clinical manifestations of all kinds of dis-eases were similar,but the occurrence rates were slightly different.MP infection were mainly fever,hepatospleno-megaly,and lymphadenopathy,and most were associated with respiratory complications(including laryngitis,bron-chitis,and pneumonia),CMV infection were also showed fever and hepatosplenomegaly,but the latter was more ob-vious;rubella patients didn’t appear skin rash,but the other symptoms were obvious.Conclusion Etiologies of in-fectious mononucleosis-like syndrome are varied,MP infection is most common,the next is CMV.Pathogens should be ascertained to provide theoretical basis of treatment.

Natural killer T (NKT) cells,a subset of lymphocytes that bridge innate and adaptive immune systems,involve in processes of infection immunity,tumor immunity,transplantation immunity and autoimmunity.A significant progress has been made in the mechanisms of origin,selection,differentiation and maturation of NKT cells.However,some viewpoints are still controversial,and need to be further intensively investigated.The potential therapeutic applications of functional NKT cells have been suggested in the prevention and the treatment of various diseases.

AIM:To investigate the effects of pioglitazone on the quantity and function-related factors of regu-latory and effector T cells ( Treg and Teff ) of uremic apolipoprotein E knockout mice in vitro with or without the stimulation of atherosclerotic plaque-specific antigen oxidized low-density lipoprotein ( oxLDL) .METHODS:Uremic apolipoprotein E knockout mouse model was established by 2-step surgical procedure.After intervention with different concentrations ( 2μmol/L and 20μmol/L) of pioglitazone and PPARγantagonist GW9662 (5μmol/L) on splenocytes of uremic mice for 12 h in the presence or absence of oxLDL (2 mg/L), the levels of CD4 +CD25 +Foxp3 +Treg and IFNγ+CD4 +Teff were de-termined by flow cytometry.The mRNA expressions of Foxp3 and IFNγwas detected by real-time fluorescent quantitative PCR.RESULTS:In vitro, oxLDL induced a Treg/Teff imbalance in splenocytes from the uremic mice.Pioglitazone up-regulated the level of Treg and mRNA expression of Foxp3 in the presence of oxLDL, which was not antagonized by GW9662.Meanwhile, pioglitazone downregulated the level of Teff and mRNA expression of IFNγin the presence or ab-sence of oxLDL, which was reversed by GW9662.CONCLUSION:oxLDL induces a Treg/Teff imbalance in uremic apo-lipoprotein E knockout mice.Pioglitazone modulates the Treg/Teff imbalance probably through PPARγ-independent and-dependent mechanisms.

Objective: To investigate influence of isometric exercise (IE) training on number of endothelial progenitor cells (EPCs) and level of vascular endothelial growth factor (VEGF) of circulating blood in patients with coronary chronic total occlusion (CTO). Methods: A total of 20 CTO patients were divided into training group (n=10) and control group (n=10). Both groups received routine medication for three months, training group also received three-month IE training (maximal handgrip was used to induce maximum IE of upper limb muscles, leading to temporary physiological ischemia of skeletal muscle),while control group remained sedentary without exercise training. Flow cytometry was used to measure number of blood EPCs, and enzyme linked immunosorbent assay (ELISA) was used to measure serum concentration of VEGF. Results: Before treatment, the differences of levels of blood EPCs and VEGF between two groups were no significant（P>0.05）. Compared with before treatment, there were significant increase in blood number of EPCs [(0.028±0.009)% vs. (0.044±0.016)%] and VEGF concentration [(65.3±15.1) pg/ml vs. (98.5±17.4)pg/ml] after three-month treatment in training group (P=0.015, P<0.01), and they were significantly higher than those of control group after treatment. Compared with before treatment, there were no significant difference in blood number of EPCs and concentration of VEGF after treatment in control group, P>0.05. The blood numbers of EPCs were positively correlated with VEGF concentration in training group and control group (r=0.727, r=0.785, P<0.05 both). Conclusions: Isometric exercise training can increase blood number of EPCs and VEGF concentration in coronary CTO patients, which may contribute to collateral angiogenesis in remote ischemic myocardium.

Objective To investigate effect of berberine on fasting glucose , fasting serum insulin, islet morphology, and ex-pression of glucose transporter 4 (GLU-4) of islet in type 2 diabetes mellitus (T2DM) rats.The present study aimed to evaluate the ually, especially for high-dose group ( P <0.01).⑷Compared with normal group , INS of diabetic control group was significantly de-creased ( P <0.05), INS of low-dose, middle-dose, and high-dose groups were all increased gradually , especially for high-dose group ( P <0.01 ) .Conclusions Berberine has the effects of antidiabetes via ameliorate insulin sensitivity , and promotes GLUT-4 protein expression .

Objective To establish the method for the content determination of sinomenine in Qiwei Tongbi oral liquid. Methods Sinomenine ofQiwei Tongbi oral liquid was determined by HPLC, with the column being Waters XTerra column temperature setting at 25℃, flow rate being 1.0 ml/min, and the detective wavelength being 262 nm. Results There was a good linearity of sinomenine in the range of 0.248～2.480 μg, and the average recovery was 98.82% with RSD of 0.13%. Conclusion This method was simple, accurate, reproducible, and thus could be used for quality control of Qiwei Tongbi oral liquid.

Objective To establish a uremic apoE-/- mouse model to observe serum biochemical parameters and features of aortic root atherosclerosis (AS) in the model. Methods A uremic model was induced surgically in apoE-/- mice: electrocautery of the right kidney at 8 weeks of age and nephrectomy (NX) of the left one 2 weeks later. Control mice were sham-operated. Two weeks after NX, renal functions were detected in the uremic and control mice to evaluate the efficiency of the model. After 10 weeks of NX, blood samples were taken to determine serum biochemical parameters, and aortic root was collected for frozen sections to investigate the lesion features of AS. Results Two weeks after NX, renal functions declined significantly in the uremic mice compared with the control ones, and remained stable 8 weeks later either in males or in females. Ten weeks after NX, serum levels of TCH, TG and LDL-C were dramatically higher in the uremic mice than in the controls, whereas no differences in serum HDL-C or glucose concentration were found between the two groups. Aortic root plaque relative area increased significantly in the uremic mice compared with the controls either in males or in females; more-over, the lesion area was larger in female mice than in male ones. Conclusion We established a uremic apoE-/- mouse model successfully, and this model is characterized by accelerated atherogenesis which is associated with an increase in serum lipid profile. This experimental model can be a useful tool to study the pathogenesis and therapeutic strategies of uremic AS.

Objective To investigate cyclic mechanical stimulation on expression of connective tissue growth factor (CTGF) in osteoblast-like cells (MG63) and to explore the rote of MAPK involved in the process.Methods Expressions of CTGF protein and mRNA in MG63 cells were detected by Western blot and RT-PCR,respectively. Phosphorylation levels of p38, ERK, JNK were examined by Western blot. Results Cyclic mechanical stimulation upregulated expressions of CTGF protein and mRNA. The levels reached a maximal response of 2-3 fold after 3-6 h. ERK and JNK signal pathways were activated by cyclic mechanical stimulation, the phosphorylated proteins increased within 10 min of stretch, phosphorylated ERK reached maximal levels by 60 min of stretch, phosphorylated JNK reached maximal levels by 15-30 min of stretch, but not for p38 signal pathway.Only the inhibitior of JNK signal pathway (SP600125) markedly suppressed stretch-induced CTGF expression,meanwhile the inhibitors of ERK (PD98059) and p38 (SB203580) did not show such effect. Conclusion Cyclic mechanical stimulation upregulates CTGF expression via JNK-dependent pathway in MG63 cells.

OBJECTIVEApplying for the activity of enzyme in vitro,the research optimized the best preparation procedure for the anticoagulated blood region from Lumbricus.

METHODAll through our experiment, the content of protein and theactivity of enzyme were examined. The extraction process, the refining technology, concentration processes of Lumbricus were optimized with single factor checking and orthogonal design method.

RESULTAt 37 degrees C, the coarse powder of Lumbricus soaking with 15 fold of 0.9% sodium chloride and ultrasonic extracting 40 minites for three times was the best ultrasonic extraction. Utrafiltration membrane with molecular weights of 30 x 10(3) for refining and 10 x 10(3) for concentrating were selected.

CONCLUSIONUltrasonic extraction and membrane separation technology, to well improve the effect of purification for the anticoagulant site of Lumbricus, is conducive to further study.

Animals ; Anticoagulants ; chemistry ; isolation & purification ; Drug Compounding ; methods ; Oligochaeta ; chemistry ; enzymology ; Temperature ; Ultracentrifugation ; Ultrasonics

OBJECTIVETo investigate the effect of removing bacterial endotoxin in the key processes of Reduning injection.

METHODThe content of bacterial endotoxins was detected by kenitic-turbidimetry and the removal efficacy was studied before and after using 0.8% of activated carbon and ultrafiltration with molecular weight cut-off of 10 x 10(3).

RESULTThe adsorption rate of bacterial endotoxins was 78.7% by using activated carbon, while the removal efficacy of bacterial endotoxins was 99.6% with ultrafiltration membrane at cut-off molecular weight 10 x 10(3).

CONCLUSIONThe key technology can effectively guarantee the safety of Reduning injection.

Adsorption ; Endotoxins ; isolation & purification ; Injections ; Pyrogens ; isolation & purification ; Ultrafiltration