Objective To examine serum lipid levels and to investigate the risk factors of dyslipidemia in children and to study the indices of screening test for dyslipidemia of children in Beijing.Methods Serum total cholesterol(TC),triglyceride(TG),high density lipoprotein-cholesterol(HDL-c) and low density lipoprotein-cholesterol(LDL-c) were detected by HITACHI 7060 automatic biochemical analyzer in Beijing students.Body height, weight,upper body height,waist circumference,upper arm circumference and blood pressure were measured.Body mass index(BMI) was calculated according to the measurement of body height and weight.Waist-to-height ratio(WHR) was also calculated.Then a Logistic regression analysis and ROC study were conducted to examine the relationship between the above indices and dyslipidemia.Results Of 962 students,107 were found dyslipidemia.The prevalence rate was 11.12%.The upper body height,upper arm circumference,BMI,WHR,systolic pressure and diastolic pressure in children with dyslipidemia were higher than those of normal subjects(P

To increase the biotransfomation efficiency from the orotic acid to the uridine 5'-monophosphate(UMP),URA5 gene encoding orotate phosphoribosytransferase was amplified from Saccharomyces cerevisiae BY4742 by PCR,then it was inserted into the expression vector pYX212(contained orotidine monophosphate decarboxylase gene URA3)and the pYX212-URA5 was transformed into Saccharomyces cerevisiae BJX12 by electroporation.The recombinant strain was elementarily used to convert orotic acid to UMP.The results showed that pYX212-URA5/BJX12 could accumulate 7mmol/L UMP from 32mmol/L orotic acid in 26h,significantly higher than both control groups pYX212/BJX12(2.7mmol/L) and BJX12(2.4 mmol/L).

0.05).Conclusions IL-11 unlikely to stimulate the growth of the CEM leukemia cell.And did not affect the antitumor effect of HD-MTX.It can be used as an assisting drug in program of acute lymphoblastic leukemia(ALL) therapy.

Objective To investigate the value of 99Tcm-Duramycin SPCET/CT in the detection of vulnerable plaque (VP) in atherosclerotic (AS) rabbit models.Methods Sixteen New Zealand male rabbits were randomly divided into three groups:group A (sham-operated group,n =4),group B (stable plaque group,n =4) and group C (VP group,n =8).Group A was fed on normal diet,and the other 2groups were fed on cholesterol diet for 12 weeks.Femoral artery dissection sham-operation was done in group A and group B,while balloon-induced abdominal aorta wall injury was produced in group C after 2 weeks'feeding.Animals were injected with 99Tcm-Duramycin (74 MBq/kg) and then SPECT/CT imaging was performed at the end of 4,8,and 12 weeks,respectively.Abdominal aortas were explanted for ex vivo imaging and histological characterization of plaque.The apoptosis index (AI) was calculated.One-way analysis of variance was used to analyze data.Results There was no radioactive uptake by the abdominal aorta in each group at the end of 4 weeks and no uptake in group A and group B at the end of 8 weeks.There was slightly uptake radioactive uptake by the abdominal aorta in group B at the end of 12 weeks and in group C at the end of 8 weeks.There was intense uptake at the lesions of AS rabbits in group C at the end of 12 weeks,and the T/NT value significantly higher than that of the other two groups (3.40±0.22 vs 2.12±0.65,2.68±0.18,F=198.775,P＜0.05).The result was confirmed in the ex vivo imaging of the explanted aorta.The AI of group C was significantly higher than that of group A and B ((25.4±6.32) ％ vs (0±0.02)％,(5.3± 1.97)％,F=70.260,P＜0.05).Conclusions 99Tcm-Duramycin scimigraphy could identify the apoptosis of VP in the rabbit AS models.It is a promising non-invasive method to diagnose AS plaques.

Objective To evaluate the therapeutic effect and influence factors of silicone pessary in treatment of pelvic organ prolapse ( POP).Methods From October 2005 to October 2010,132 with symptomatic POP managed by pessary were enrolled in this retrospective study.Validated prolapse quality of life questionnaire (pelvic floor distress inventory short form 20,PFDI-20),pelvic floor impact questionnaire short form 7 (PFIQ-7) and the patients' satisfaction degree were used to evaluate the therapeutic effect.Clinical characteristic of the patients with successful using for more than 6 months ( successful fitting group),giving up within 6 months (giving up group),unsuccessful fitting (unsuccessful fitting group)were compared.Factors influencing satisfaction degree and causing discontinuation were investigated.Results One hundred and six among 132 ( 106/132,80.3％ ) patients were in successful fitting group,26 (26/132,19.7％ ) patients were in the unsuccessful fitting group.In the successful fitting group,86.8％ (92/106) patients were followed up,the median follow-up time was 12.5 months.And 78.3％ ( 72/92 ) patients continued to use pessary with the wearing time ranged 3 -69 months; 21.7％ (20/92) patients discontinued with the wearing time ranged 1 -38 month,14 patients (14/20) gave up in the initial 6 months.The median scores of PFDI-20 and PFIQ-7 questionnaires before pessary use were 50.0 and 47.6,which decreased to 8.9 and 0.0 after pessary use (P＜0.05).And 87.1％ (61/70) patients were satisfied.There was no significantly difference among 3 groups on clinical characteristics,such as age,body mass index ( BMI ),pelvic surgery and so on (P ＞ 0.05 ).The main factor influencing satisfaction degree and causing discontinuation was difficulties in placing and removing.Conclusions Silicone pessary is effective for patients with POP.It could relieve discomfort symptoms and improve quality of life.The main factorinfluencing pessary use is difficulties in placing and removing.Thus,More suggestions are needed for patients in the initial 6 months.

Six bacterial strains were isolated from lead-zinc mine tailings with the age of about 100 years, and their phylogenetic position was determined by the analysis of partial 16S rRNA gene sequence. Three strains belonged to genus Arthrobacter, and were close to A. nicotinovorans and A. histidinolovorans. Other three strains belonged to genus Agromyces, and were close to Ag. mediolanus. All of them were resistant to Pb(NO_(3))_(2), CdCl_(2), ZnSO_(4), CuSO_(4) and CoCl_2. Relatively, minimal inhibitory concentration(MIC)of Zn~(2+) and Co~(2+) of three Arthrobacter strains was significantly higher than that of three Agromyces strains. Additionally, these strains displayed strong adsorption of Pb(NO_(3))_(2), CdCl_(2), ZnSO_(4). Averagely three Arthrobacter strains could adsorb about 400mg of Pb~(2+), 177mg of Cd~(2+) or 80mg of Zn~(2+) per gram of dried cells. Therefore, these strains were important candidates for application in bioremediation of heavy metal-contaminated environment.

Objective To investigate the relationship between the expression level of platelet membrane glycoprotein?3(GPⅢa,CD61)and the severity of disease in patients with hemorrhagic fever with renal syndrome(HFRS).Methods One hundred and four patients with HFRS and 30 healthy individuals were recruited.The percentage of CD61 positive platelets and the mean fluores- cence intensities(MFI)of platelet membrane glycoprotein?3 were determined by flow cytometry (FCM).The 104 patients studied were divided into three groups based on their expression levels of platelet membrane glycoprotein?3 at oligurie phase.Clinical data and laboratory parameters in different groups were compared and analyzed.Results The expression levels of CD61 in patients with HFRS were significantly higher than those in control group,although no significant difference in the percentage of CD61 positive platelets between patients with HFRS and controls was detected.The MFI of CD61 expression in patients with HFRS at fever phase,oliguric phase and polyuric phase was 19.75?2.57,17.46?1.48 and 15.55?0.60,respectively,which was significantly higher than that in control group(3 20?0.12).The expression level of CD61 in patients with HFRS at oliguric phase was negatively correlated with platelet count and serum albumin(r=-0.637 and-0.695,respec- tively)and positively correlated with white blood cell count,blood urea nitrogen,serum creatinine and alanine aminotransferase(r=0.945,0.904,0.956 and 0.891,respectively).When the patients were compared according to the expression levels of CD61,it was indicated that the higher the expression level of CD61,the higher the incidence of uremia,hypoalbuminemia,abnormal liver func- tion and leukocytosis.Conclusions The expression levels of platelet membrane glycoprotein?3 in patients with HFRS are different in different clinical phases and are significantly correlated with the severity of the disease in the patients.It suggests that the expression levels of platelet?3 integrin are dramatically increased in patients with HFRS,which may be an indicator for the severity of disease and be helpful for monitoring the state of the patients' diseases and evaluating the severity of the disease.

Objective To investigate the potential of 99Tcm-Durarnycin and 99Tcm-RGD in detecting vulnerable plaque in rabbit models.Methods Fifteen healthy New Zealand male rabbits were randomly divided into group A (control group,n =5),group B (stable plaque group,n =5) and group C (vulnerable plaque group,n =5).Animals were injected with 99Tcm-Duramycin and 99Tcm-RGD at the end of 4,8 and 12 weeks.SPECT/CT scanning was performed at 0.5 h post injection.One rabbit was sacrificed at the end of 4 weeks and one at the end of 8 weeks after imaging.The others were sacrificed at the end of 12 weeks after imaging studies.All aortas were collected.Intravascular ultrasound (IVUS) was performed at the end of 8,12 weeks before SPECT/CT scanning.The data was analyzed with paired t test.Results In group A,the aortas had little uptake of the two probes.In group B,the aortas showed obvious radioactive uptake of 99Tcm-Duramycin and 99Tcm-RGD at the end of 8 weeks and 12 weeks,while 99Tcm-Durarnycin gave better display than 99Tcm-RGD.In group C,99Tcm-Duramycin uptake was higher than 99Tcm-RGD uptake in the aorta.The T/NT ratios of 99Tcm-Duramycin and 99Tcm-RGD in group C were 2.14±0.34 and 1.46±0.34 (t=4.072,P＜0.05) at the end of 4 weeks,2.93±0.41 and 1.66±0.22 (t=5.578,P＜0.05) at the end of 8 weeks,3.25±0.29 and 1.81±0.28 (t=19.692,P＜0.05) at the end of 12 weeks.In isolated specimen of group C,the yellow lipid plaque of the intima bulged on the lumen at the end of 12 weeks.IVUS indicated that,at the end of 8 weeks and 12 weeks,the endometrial thickness of group C was (450±104) mm and (767±52) mm (t=44.024,P ＜ 0.05) respectively,and the rates of luminal stenosis were (29.30± 2.81) ％ and (37.98 ±6.41)％ (t =9.226,P＜0.05).Conclusions Both 99Tcm-Duramycin and 99Tcm-RGD may be used to detect vulnerable plaque at early time.99Tcm-Duramycin may detect vulnerable atherosclerotic plaque earlier than 99Tcm-RGD and provide better diagnostic image.

Platelets (Plts) have been shown to play a critical role in tissue repair mechanisms such as chemotaxis, cell proliferation, angiogenesis and extracellular matrix deposition. These effects are largely due to the contents of platelet granules, among which there are a number of important growth factors contributing to the wound repairing process. Platelet-rich plasma (PRP) has been traditionally used as a source of platelet growth factors (PGFs). After connecting activator, platelet gel (PG) is formed and numerous PGFs such as PDGF, TGF, VEGF, IGF, and EGF are released. It is important in different stages of the wound-healing cascade and greatly influence mitogenic and cellular differentiation activities. The aim of this review is to present knowledge about properties of PRP and possibilities of using PRP in the treatment of wound, as well as the success of the clinical studies performed so far, finally the future of PRP therapies are also described.
Humans ; Intercellular Signaling Peptides and Proteins ; therapeutic use ; Platelet-Derived Growth Factor ; therapeutic use ; Platelet-Rich Plasma ; Wound Healing

Objective To improve the anderstanding of clinical profile of primary plasma cell leukemia.Methods Case report and literature review.Results A rare case of nervous system relapse in primary plasma cell leukemia was reported.Six patients were identified from the literature.The type of immunoglobulin included IgG(3 patients),IgD(2 patients).Clinical manifestations of nervous system were variable.The average interval from initial diagnosis to the development of nervous system relapse was 16.5 months.Plasma cells were found in cerebrospinal fluid in 4 patients.The mean surviaval time was 6.7 months after nervous system relapse.Conlusion Nervous system relapse in primary plasma cell leukemia is rare with poor prognosis.