MicroRNAs (miRNAs) are critical regulators of gene expression. These small, non-coding RNAs are believed to regulate more than one third of protein-coding genes, and have been implicated in the control of many biological processes, including the biology of glioma. The functional significance in some of the miRNAs begins to emerge. This paper reviews the biogenesis of miRNAs, their roles in neuronal development and tumorigenesis of gliomas, and their contribution as tumor biomarkers. Research in this area is quickly gathering pace and is illuminating important aspects of the diseases that may ultimately lead to novel therapeutic interventions, as well as diagnostic and prognostic tools for brain tumors.

Objective To study the relationship between lung inflammation and lung angiotensin Ⅱ ( ANG Ⅱ) in ventilator-induced lung injury ( VILI) and assessed the efficiency of the angiotensin-converting enzyme inhibitor captopril to attenuate VILI in rats. Methods Totally 21 adult male Sprague-Dawley rats were randomly assigned into 3 groups,high-volume,0 positive end-expiratory pressure ( HVZP) group; captopril injection ( 100 mg/kg i. p. ) in 30 min before HVZP ventilation ( HVZP + CAP group) ; no ventilation group ( control) . The blood gas tensions and mean arterial pressure were measured after a polyethylene catheter was placed in one carotid artery and a plastic cannula was inserted into the trachea. The protein contents and contents of macrophage inflammatory protein-2 ( MIP-2) in bronchoalveolar lavage fluid ( BALF) and lung ANGⅡ were determined by ELISA. The changes of lung pathology were observed by HE staining. Results Mean arterial pressure was significantly lower in the HVZP + CAP group than in the HVZP group after 2 hour’s ventilation. Total protein levels were significantly higher in BALF recovered from HVZP-ventilated rats than from controls. BALF MIP-2 and lung ANG Ⅱ were significantly higher in the HVZP group than in the control and HVZP + CAP groups. Lung ANG Ⅱ level was correlated positively with BALF contents of total protein and MIP-2. Conclusion Captopril has the efficiency to attenuate VILI by reducing inflammatory cytokines. Our results suggest that VILI is partly mediated by the local angiotensin system.

Non-arteritic anterior ischemic optic neuropathy (NAION) is one of the most common acute optic neuropathy in adult characterized with impaired visual acuity and visual fields.The pathogenesis of NAION mostly result from the interactions between the systemic risk factors (such as diabetes mellitus,night hypotension, hereditary) and the local ocular risk factors (such as small optic disc and vitreo-papillary traction).A fully promoted diagnosis and treatment of NAION are based on the higher levels of clinical cvidence, as well as the comprehensive assessment of relationship between the systemic and ocular risk factors in the pathogenesis of NAION.Secondary optic neuropathy of NAION and the early diagnosis with effective treatment of the fellow eye would be highly emphasized.

Behavioral Medicine ; Humans ; Public Health ; methods

Public Health ; economics ; Social Support

Adolescent ; Adult ; Aged ; Facial Paralysis ; therapy ; Female ; Hemorrhage ; Humans ; Male ; Middle Aged ; Needles ; Young Adult

Objective To discuss the similarities and differences of clinical manifestation and pathological characteristics in hepatitis B virus related membranous nephropathy (HBV-MN) between children and adult. Methods Ninety cases with HBV-MN were divided into two groups according to the age:children group (33 cases) and adult group (57 cases). A retrospective control study was carried out to analyze the clinical and pathological features of the two groups. Results The incidence of anemia in children group was 45.45% ( 15/33 ), which was significantly higher than that in adult group [15.79% (9/57)](P ＜ 0.01). Nephrotic syndrome was the largest proportion in two groups,but there was no significant difference in the composition of clinical manifestations between two groups (P ＞0.05). Membranous nephropathy Ⅱ was common in pathological stage in two groups. The incidence of membranous nephropathy Ⅱ in children group was 63.64% (21/33),which was significantly higher than that in adult group [42.11%(24/57)] (P ＜ 0.05 );immunohistochemistry showed "all bright", and the deposition of HBcAg in renal biopsy was also higher than that in adult group (P ＜ 0.05). Conclusion There are some similarities and differences in HBV-MN between children and adult patients,and these will help to improve the levels of diagnosis and treatment.

Objective:To explore diagnostic value of dynamic electrocardiogram (DCG) combined esophageal electro‐physiological examination (EEE) for sick sinus syndrome (SSS) .Methods :A total of 74 cases suspecting SSS ,who presented 24h mean heart rate <55 beats/min in DCG ,were selected .After DCG examination ,all subjects received EEE . Diagnostic value of single and combined examinations wereexplored .Results:Compared withthe SSS positive rate of single DCG and single EEE(87.8% ,86.5% ) ,theSSS positive rate ofDCG combined EEE(97.3% ) was sig‐nificantly rose ,P<0.05 both .Conclusion:Dynamic electrocardiogram combined esophageal electrophysiological ex‐amination can evaluate sinus node function from different angles ,which can significantlyincrease SSS diagnose rat .

Objective To establish a calcification mode in vitro of human vascular smooth muscle cells (HVSMCs) induced by β-GP. Methods Primary HVSMCs were obtained from human embryo by plant method and confirmed by stain with α-sm-actin antibody. The cells after 4-6 passages were divided into two groups.The control group was incubated with normal DMEM medium while the calcification group was incubated with the medium containing 10 mmol/L β-glycerophosphate for 10 days.Calcification was confirmed by alizarin red S stain and alkaline phosphatase(ALP) assays. Results The primary cells observed by S-P stain were positive and the cells after being stained were pale yellow. After being induced with β-GP, the cells of calcification group began concentric growth and formed vesicles. Alizarin red S staining showed that the reaction of calcifying nodules was red,ALP activity was higher than that of controls at various time points(4 d,6 d,8 d and 10 d,P＜0.01 ).Conclusion The HVSMCs could be induced into calcification in vitro by β-GP, and this model contribates to further studies of vascular diseases.

Objective To explore the association between mild cognitive impairment (MCI) and hypersensitive C reactive protein (hs-CRP),interleukin-1β (IL-1β) and interleukin-6 (IL-6) among Uygurs and Hans in Xinjiang region,China.Methods From July 2008 to October 2010,the epidemiological investigation was performed in Southern,Eastern and Northern of Xinjiang.Based on the diagnostic standard of United States psychiatric society of spirit obstacles diagnosis and statistics manual Ⅳ amendment version in the mild cognitive function,483 MCI patients were diagnosed.Finally,314 MCI patients were selected from above according to the completion of data.Moreover,299 subjects were randomly selected as the control group from the investigation.General information and fasting plasma were collected,and blood glucose,blood lipid and biochemical indexes,serum hs-CRP,IL-1β,IL-6 of concentration were tested.The association between MCI and hs-CRP,IL-1β and IL-6 were analyzed with SPSS 17.0 software.Results (1) The concentrations of serum hs-CRP,IL-1β and IL-6 in MCI group (3.40 (6.53) mg/L,0.09 (0.09) ng/L,136.08(96.77) pg/L) were significantly higher than that in control group (2.99 (3.91) mg/L,0.07(0.06) ng/L,79.32(68.79) pg/L) respectively (Z =-2.525,-2.946,-9.361,all P ＜0.05).(2)The concentrations of serum hs-CRP,IL-1β,IL-6 in Han MCI patients were significantly higher than that in Han non-MCI subject; The concentrations of serum IL-1β,IL-6 in Uygur MCI patients were significantly higher than that in Uygur non-MCI subjects; However,the hs-CRP concentration between MCI and non-MCI group is not statistically different among Uygurs.(3)Non-conditional Logistic regression analysis showed that serum IL-1β(OR =1.008,95％ CI0.897-1.071,P =0.006),hs-CRP (OR =1.096,95％ CI1.056-1.137,P =0.000),IL-6 (OR =1.011,95％ CI1.008-1.014,P =0.000) were associated with MCI.Conclusion The hs-CRP,IL-1β and IL-6 were independent risk factors for MCI.