Objective To investigate the clinical significance of serum interleukin (IL)-6,IL-8,tumor necrosis factor (TNF)- α, high-sensitivity C-reactive protein (hs-C RP), total immunoglobulin (Ig) and complement C levels in children with mycoplasma pneumoniae pneumonia (MPP). Methods Sixty-one cases of children with MPP (observation group) and 60 healthy children (control group) were selected. The serum IL-6 and IL-8 levels were tested by enzyme linked immunosorbent assay(ELISA) method; the serum TNF-α level was tested by γ radioimmunoassay (RIA) counter; the serum hs-CRP, total Ig and complement C levels were tested by rate nephelometry method. Results The serum IL-6 concentration was (109.31 ±54.72) ng/L, IL-8 concentration was (128.19 ±65.87) ng/L, hs-CRP concentration was (34.13 ± 19.21) mg/L, total Ig concentration was (12.62 ± 5.51) g/L and complement C concentration was (2.98 ± 0.97) g/L in the observation group, and they were higher than those in the control group [(67.23 ±32.18) ng/L, (31.78 ±8.91) ng/L, (1.62 ±1.34) g/L, (6.71 ±3.65) g/L, (1.46 ±0.45) g/L]. The differences were significant (P ＜ 0.05 or ＜ 0.01). The serum TNF- t level between two groups had no significant difference (P＞ 0.05). Conclusions The serum cytokines IL-6 and IL-8, hs-CRP, total Ig and complement C play an important role in MPP. It has important significance to detect the serum cytokines IL-6 and IL-8, hs-CRP, total Ig and complement C levels in children with MPP.

Objective To observe the clinical efficacy of oral use of Bushen Huoxue Recipe (BHR) and steam washing with Shujin Waixi Granules for the treatment of knee osteoarthritis (KOA) with kidney deficiency and blood stasis. Methods One hundred and twenty KOA patients with kidney deficiency and blood stasis were divided into western medicine group, combination group and BHR group, 40 cases in each group. Western medicine group was treated with oral use of Diclofenac Sodium Sustained-release Tablets, combination group was treated with oral use of BHR and steam washing with Shujin Waixi Granules, and BHR group was given BHR orally alone. Western Ontario and McMaster Universities (WOMAC) osteoarthritis index and knee osteoarthritis severity index (ISOA) were used to evaluate the clinical efficacy of patients after treatment for 4 weeks. Results (1) After treatment, the scores of WOMAC osteoarthritis index and ISOA in the three groups were decreased(P< 0.01 compared with those before treatment), and the decrease in the combination group was superior to that in the western medicine group and BHR group(P< 0.05).(2) After treatment for 4 weeks, the total effective rate of western medicine group, combination group and BHR group was 82.5％, 95.0％, 80.0％ respectively, and the combination group had the strongest effect (P < 0.05). Conclusion Oral use of BHR combined with steam washing with Shujin Waixi Granules is effective for the treatment of KOA patients with kidney deficiency and blood stasis by relieving local pain and improving knee joint function.

From the perspective of portable monitoring devices,we use an analog front-end AFE4490 design a module of Non-invasive blood oxygen measurement, used to collect human pulse wave signal and peak (valley) value detection and then use the principles of non-invasive oximetry calculated oxygen saturation (SPO2). This design of noninvasive oximetry module has the characteristics of small size, low power consumption, and the results of test show that the measurement of oxygen saturation are correct.
Heart Rate ; Humans ; Oximetry ; instrumentation ; methods ; Oxygen ; blood

Objective Through observing and treating the ovulation dysfunction patients with birth demand ,to study the clinic characteristics and therapy strategy .Methods 630 clinical cases including natural cycles and controlled ovarian stimulated cycles . monitored by transvaginal B-ultrasonography from April 2008 to April 2012 ,The common reasons ,clinical manifestation ,and out-come undergoing different treatment strategies were analyzed .Results In the natural cycles ,41 .61% patients suffered ovulation dysfunction ,PCOS patients occupied the most .Through the therapy of controlled ovarian stimulating on these patients ,60 .84% of ovulation dysfunction patients recovered normal ovulation .The therapeutic regimen of clomiphene citrate (CC) 50 mg and of CC combined with human menopausal gonadotropin(HMG) showed a higher ovulation rate ,66 .49% and 67 .57% respectively(P<0 .05) .Anovulia was the most commonly type of the ovulation dysfunction ,followed small follicle ovulation and luteinizing unrup-tured follicle .Conclusion Ovulation dysfunction is frequent in infertility patients .Understanding the clinical characteristic and the disease cause ,working out the favourable and effective therapeutic regimen can increase their conception possibility .

To develop a core-shell structure pDNA-CaPi-PLGA nanoparticles (CS-pDNA-CaPi-PLGA-NPs), calcium phosphate-pDNA nano complexes (CaPi-pDNA) were encapsulated inside of PLGA shells. The characteristics of the nanoparticles, including morphology, average particle size, zeta potential, entrapment efficiency, loading efficiency, stability in medium, pDNA protection ability from nuclease degradation, in vitro release, cytotoxicity and cell transfection were investigated and compared with the embedded structured CaPi modified PLGA nanoparticles (embedded-pDNA-CaPi-PLGA-NPs). The results showed that the obtained CS-pDNA-CaPi-PLGA-NPs were spherical in shape with an average particle size of (155 +/- 4.5) nm, zeta potentials of (-0.38 +/- 0.1) mV, entrapment efficiency of (80.56 +/- 2.5)% and loading efficiency of (1.16 +/- 0.04)%. The CS-pDNA-CaPi-PLGA-NPs were stable in the release media and could protect pDNA against nuclease degradation. And they also exhibited sustained release of pDNA in vitro. The highest gene transfection efficiency of the CS-pDNA-CaPi-PLGA-NPs in vitro reached (24.66 +/- 0.46)% (after 72 h transfection), which was significantly higher than that of free pDNA [(0.33 +/- 0.04)%, P < 0.01] and the pDNA-PLGA-NPs [(1.5 +/- 0.07)%, P < 0.01]. Besides, the transfection lasted for longer time than that of embedded-pDNA-CaPi-PLGA-NPs and the cytotoxicity of it was significantly lower than that of PEI (P < 0.01). These results indicate that CS-pDNA-CaPi-PLGA-NPs are a promising non-viral gene vector. Key words: gene delivery system; polylactic-co-glycolic acid; calcium phosphate; nanoparticle

Objective To investigate the risks of self-rated health in the ≥55-year elderly in Beijing and the occurrence of stroke.Methods The subjects (n=2 101;aged ≥55) from Beijing longitudinal study of aging (BLSA) were collected by Xuanwu Hospital,Capital Medical University from January 1992 to December 2016.One hundred and twenty-one subjects with stroke at baseline and 92 with incomplete information were excluded,and finally,1 888 elderly patients without cerebrovascular disease at baseline were included in the analysis.Based on the actual situation,the self-rated health was to identify an item that matched their current state from good,general to poor.The deadline for the survey was December 31,2012.The competitive risk model was used to assess the health self-rated status and the risk of stroke.Non-stroke deaths,including cancer and car accidents were treated as competitive events.Results Of the 1 888 subjects enrolled,946 (50.1%) self-rated health were good,616 (32.6%) were general,and 326 (17.3%) were poor;438 (23.2%) had stroke,751 (37.8%) had non-stroke death,and 699 (37.0%) were right censored data.Using the competing risk model and adjusting the age,sex,living area,marital status,education level,smoking,alcohol consumption,physical exercise,hypertension,diabetes mellitus,coronary heart disease,and body mass index,the occurrence of stroke in patients with poor self-rated health was 1.44 times (95%CI 1.11-1.87,P<0.01) as good as those who were good.Conclusion In the self-rated health of the elderly ≥55 years old in Beijing,the people with poor self-rated health increased the occurrence of stroke after considering the competitive risks.

Background Studies show that regulatory T cells (Treg) are a kind of T cell subsets to negatively regulate immune response,and play an important role in maintaining immune homeostasis and immune tolerance.Autoimmune uveitis is an autoimmune disease,the regulation of Treg cells in pathogenesis and progression of autoimmune uveitis is not fully unelucidated.Objective This study was to observe the dynamic changes of Treg in experimental autoimmune uveitis (EAU) rats and explore the role of Treg cells in the pathological process of EAUrats.Methods Eighty four 6-8 week-old SPF Lewis rats were randomly divided into model group and control group.The mixed emulsifier of interphotoreceptor retinoid-binding protein (IRBP)1177-1191,tuberculin (TB),complete Freund adjuvant (CFA) and PBS (300 μl) was subcutaneously injected in double rear foot pad,abdominal side and back,and only equal amount of TB,CFA and PBS emulsifier was used in the same way in the control group.Ocular inflammation symptoms was examined at 9,13,18,23,28,35 and 48 days after modeling and scored based on the severity of the inflammatory.Six rats of each group were sacrificed in above time points respectively for the histopathological examination of iris,ciliary body and retinas by haematoxylin-eosin staining.The lymphocytes were isolated and cultured from rat spleens,and the proportion of Foxp3-labelled cells,a specific marker of Treg cells,was assayed by flow cytometry.The relative expression level of Foxp3 mRNA in the lymphocytes detected by using realtime quantitative PCR (RT-PCR).The use and care of the rats complied with the ARVO Statement.Results Eye inflammatory response appeared at 8 days after immunization,showing vasodilation and hyperemia of rat iris in the model group,and the response peaked at 13 days,with exudation and hypopyon in the anterior chamber.The highest inflammatory scores were 3.75±0.42 at day 13,and the ocular inflammation reaction was gradually relieved after that and disappeared at 23 days after immunity.A significant difference in ocular inflammatory scores of model rats was found among different time points (F =81.709,P ＜ 0.001);while no inflammatory symptom was observed in the control group.Histopathology examination showed obvious infiltration of inflammatory cells in the iris,ciliary body and retinas in model rats,including neutrophils,lymphocytes and mononuclear cells.The proportion of Foxp3-labelled cells in spleen lymphocytes was (5.50 ± 0.64)％,(13.36 ± 0.98)％,(10.34 ± 0.79)％,(9.58 ± 1.02)％,(6.73 ±0.81)％ and (5.58 ± 0.47) ％ in the model group on day 13,18,23,28,35,48 respectively,with statistically significant differences in comparison with (2.80 ± 0.38) ％,(3.36 ± 0.53) ％,(3.65 ± 0.57) ％,(3.37 ± 0.43) ％,(3.33±0.50)％ and (3.13±0.61)％ in the control group (t=-6.272,-15.556,-11.910,-9.753,-6.154,-5.491,all at P＜0.01).The change trend of Foxp3 mRNA expression was consistent to the dynamic change of the proportion of Foxp3-labelled cells.Conclusions The pathogenesis and development is closely associated with the dynamic changes of CD4+ CD25 + Foxp3+ Treg cells in EAU rats.

ObjectiveTo investigate the risk factors for contrast-induced nephropathy (CIN) after endovascular therapy in patients with peripheral arterial diseases and to evaluate the conformance of serum cystatin C (Cys C) and serum creatinine in diagnosis of CIN. Methods In this prospective,single center study,in-hospital patients with peripheral arterial diseases undergoing non-emergency endovascular therapy from July 2010 to April 2011 in our hospital were enrolled.CIN was defined asScr increase ≥25％ after angiography.General clinical characteristics and blood biochemical parameters were compared between the non-CIN and CIN groups.Logistic regression analysis was performed to determine risk factors.Changes compared to baseline level in serum creatinine and Cys C at predefined time-points were evaluated.Results A total of 367 patients were enrolled in the study.The proportions of patients with diabetes mellims and treatment with diuretics before angiography,contrast-media dosage were significantly higher in the CIN group than those in non-CIN group (P＜0.05,＜0.01,＜0.01).Logistic regression analysis indicated that diabetes mellitus,contrast-media dosage were risk factors for CIN.Several serum Cys C increase criteria at 24 hours after contrast media exposure all had low sensitivity for predicting a Scr increase ≥25％.Only small overlapped regions were found in Venn diagram between several increasing criteria according to serum Cys C and serum creatinine criterion. Conclusions Diabetes mellitus,contrast-media dosage are independent risk factors for CIN.The results of several increasing criteria according to serum Cys C in evaluating contrast-induced AKI are not coincident well with that of serum creatinine criterion.

ObjectiveTo evaluate totally laparoscopic Meckel's diverticulectomy in comparison with laparoscopic-assisted or open diverticulectomy.MethodsThe clinical data of 58 cases of Meckel's diverticulum admitted between January 2006 and January 2011 were analyzed.Cases were divided into three groups according to different period of time. As a result,totally laparoscopic surgery was performed in 13 cases,laparoscopic-assisted resection in 25 cases and open diverticulectomy in 20 cases. Totally laparoscopic group was compared with the other two groups in operation time,flatus defecation time,the incidence of postoperative complications and postoperative hospital stay.ResultsThe mean length of incision was ( 1.6 ± 0.4 ) cm,the mean operation time was ( 41 ± 5 ) min,flatus defecation time was (21.2 ±3.7) h,and the postoperative hospital stay was (6.3 ± 1.2) d in totally laparoscopic group.While that was (2.5 ± 1.2 ) m,( 38 ± 2 ) cm,( 23.6 ± 4.2 ) h,( 6.5 ± 2.3 ) d,respectively in laparoscopicassisted group,and the mean length of incision was (5.0 ± 2.2 ) cm,the mean operation time was (51 ± 6 )min,flatus defecation time was (32.3 ± 6.7) h,the postoperative hospital stay was (8.4 ± 3.8) d in open surgery group.Compared with conventional laparotomy,laparoscopic techniques enjoy advantages of minimal invasion,shorter operative time,fewer complications,shorter recovery period and earlier gastrointestinal recovery(P ＜ 0.05). There were nosignificant differences in operative time, recovery period and complications between totally laparoscopic group and laparoscopic-assisted group.ConclusionsTotally laparoscopic Meckel's diverticulectomy is safe,effective and miniinvasive in experienced hands.

BACKGROUND: At present, traditional modalities of neuroimaging, such as CT and MRI, is very limited in the diagnosis and severity estimation of diffuse axonal injury (DAI).OBJECTIVE: To investigate the value of proton magnetic resonance spectroscopy (1HMRS) in the diagnosis and prognosis of DAI.DESIGN, TIME AND SETTING: Prospective clinical controlled observation. The study was performed at the Department of Neurosurgery, and Department of Radiology, First Affiliated Hospital of Chongqing Medical University between October 2002 and September 2007.PARTICIPANTS: A total of 63 subjects with traumatic brain injury were enrolled and divided into DAI group (n=27) and non-DAI group (n=36) according to the result of MRI. In addition, 20 healthy persons were served as control group.METHODS: Demographic and clinical data were recorded on admission and neuroimaging examinations including fluid attenuated inversion recovery were carried on according to carefully designed procedures, in addition, 1HMRS was performed and the data were analyzed in combination with clinical condition.MAIN OUTCOME MEASURES: The ratios of N-acetyl aspartate (NAA)/creatine (Cr) and creatine phosphate (Cr), Choline compound (Cho)/Cr, myoinositol (mlNs)/Cr, and glutamic acid (GIx)/Cr at genu and splenium of corpus cellosum, and basal ganglia were quantified using 1HMRS.RESULTS: Compared with control and non-DAI groups, DAI group had decreased NAA/Cr and increased Cho/Cr at genu and splenium of corpus callosum, and basal ganglia (P < 0.05- 0.01), as well as increased mlNs/Cr and Glx/Cr at genu and splenium of corpus cellosum (P < 0.05). Non-DAI group also showed decreased NAA/Cr at splenium and increased Cho/Cr at genu of corpus callosum compared with control group (P < 0.01), but the change degree was less than DAI group. A positive correlation between Cho/Cr at genu of corpus callosum and the peded of primary unconsciousness was identified in DAI group (r=0.824, P < 0.01). CONCLUSION: The 1HMRS indexes at genu and splenium of corpus callosum, and basal ganglia could serve as effective indexes for the diagnosis of DAI. The Cho/Cr could well reflect histological changes following injury and act as sensitive index to predict clinical injury.