A total of 94 patients aged 80 years or over diagnosed as acute ischemic stroke based on their clinical features and CT or MRI and 64 elderly people without stroke as controls were enrolled in this study. They were admitted in Beijing Hospital from September 2003 to July 2008. Blood pressure measurement, electrocardiogram (ECG) and color doppler ultrasonography in carotid arteries were performed for all of them, as well as blood glucose, lipid and fibrinogen were measured and history of hypertension,diabetes, coronary heart disease, hyperlipidemia, smoking and alcohol drinking were recorded. Univariate analysis showed that more hypertension, hyperfibrinogenemia, atrial fibrillation and carotid atherosclerosis were found in the elderly patients with ischemic stroke than in those without it ( P ＜ 0. 05 ). And, multivariate logistic regression analysis showed that hyperfibrinogenemia ( OR = 16. 23, P = 0. 009 ), atrial fibrillation ( OR = 3.47, P = 0. 080) and isolated systolic hypertension ( OR = 1.05, P ＜ 0. 01 ) all were independent risk factors for ischemic stroke in the elderly.

The prevalence of Alzheimer's disease(AD)increases along with the increase of human lifespan.AD has become one of the leading death causes.However,the exact etiology of AD remains unclear.More evidences have demonstrated that dietary factors play key roles in the pathogenesis of AD.Nutritional status evaluation and nutrition support are important in the early prevention and treatment of AD.

The risk factors for ischemic stroke in the very old (≥ 80 years) are not exactly the same as other populations (＜ 80 years). Compared to other age groups, the incidence of ischemic stroke in the very old female population is higher, and the traditional risk factors such as atrial fibrillation and hypertension are more common, whereas diabetes, hyperlipidemia, smoking and drinking are less common. It is uncertain that whether heart failure, ischemic heart disease and high creatinine level increase the risk of ischemic stroke. Overall, the effect of traditional risk factors on ischemic stroke in the very old remains to be further studied.

Uncoupling protein, a protein that participates in proton transport in the inner mitochondrial membrane, has some physiologic functions such as regulating thermogenesis, maintaining body temperature, regulating energy balance and adenosine triphosphate production, controlling reactive oxygen species production, and restraining apoptosis. It takes part in the pathophysiological processes in a number of diseases. The article reviews the uncoupling protein gene, distribution and regulation, the roles in peripheral tissues and central nervous system, and its possible relationship with cerebral infarction.

For this cross-sectional study , the clinical data of 1979 patients at our emergency department from October 2012 to June 2013 were collected and analyzed.The relevant data included gender , age,visit time,complaints,signs and diagnosis.The ratio of female:male was 1 to 0.71.The age groups of 50-59 and 70-79 years were the most.The peak of visit time was 8-10 am accounting for 21.26%.The common complaints included dizziness ,headache and paralysis.The most frequent emergency diseases were acute cerebral vascular accident , dizziness or vertigo due to various diseases , headache and peripheral neuropathy.Ischemis stroke was the top one disease in elders.Conclusion The middle-aged and elderly are the main populations at our emergency department.And cerebrovascular disease is a common disease.

Objective To explore the feasibility of using portable γ spectrometer to rapidly identify the low activity of depleted uranium and the underlying conditions.Methods Firstly,high purity germanium (Ge) γ spectrometer was used to analyze energy spectrum of DU samples (5 g) and calculate nuclide percentage of 235U in an attempt to ascertain the properties of these DU samples.The portable γ spectrometer was used to provide the evidences for identification of DU samples.Secondly,portable γ spectrometer was also used to identify DU samples of same group.These samples contain 1 g DU powder and 0-5 g environmental clay powder,which were sealed with double layer pocket,and then detected with a distance of 1-5 cm during the longest detection time of 10 min.According to the detection of nuclide activity of 238U and 235U in the samples and the subsequent calculation of specific activity,the nuclide percentage composition was calculated and the existence of DU was confirmed if this value of 235U was less than 0.718％.Results The activity of 238U was detected using portable γ spectrometer under all test conditions,while the activity of 235U was detectable only under certain test conditions (MA ≥ 1 g,DN ≤ 1 cm).Under the condition that the 238U and 235U was both detected,the nuclide percentage of 235U was all less than 0.718％,which suggested that the DU was confirmed.Conclusions The energy spectrum of low activity of DU and the type of nuclide could rapidly be identified and evaluated by using portable γ spectrometer.This is same as the conclusions obtained with high purity Ge γ spectrometer,α spectrometer and ICP-MS.

Percheron artery infarct (PAI) is uncommon clinically.One case had an acute onset of coma,impaired left limb activities,verbal incoherence,drinking cough and vertical gaze palsy after regaining consciousness.Magnetic resonance imaging (MRI) showed symmetrical high signal intensity on diffusion-weighted imaging (DWI) in bilateral paramedian thalami and a distinct pattern of V-shaped midbrain hyperintensity on DWI.Magnetic resonance angiography (MRA) showed left-sided embryonal posterior cerebral artery (PCA) from ipsilateral internal carotid artery (ICA).Systemic treatment yielded a poor prognosis.

Objective:To investigate the relationship among childhood abuses,social support and non-suicidal self-injury (NSSI) in adolescents,and to examine the mediating effect of social support on the relationship between childhood abuses and non-suicidal self-injury.Methods:A total of 9704 middle school students were selected from junior and senior middle schools in Zhengzhou,Guiyang city.The Childhood Trauma Questionnaire-28 item Short Form (CTQ-SF),Non-Suicidal Self-Injury Questionnaire,Social Support Scale for University Students and Multidimensional Sub-health Questionnaire of Adolescents (MSQA) were used to measure the different types of adverse childhood experiences,non-suicidal self-injury,social support and psychopathological status.Results:The CTQ-SF-scores were positively correlated with non-suicidal self-injury scores (r =0.20,P ＜ 0.01) and negatively correlated with social support scores (r =-0.22,P ＜ 0.01).The total scores and factor scores of social supportscale were negatively correlated with non-suicidal self-injury scores in adolescents (P ＜ 0.01).When control of the area,grade,self-reported learning burden,self-reported grades and psychological pathology symptoms,social support in childhood abuse and the relation between the suicide self-injury the mediation effect by the single factor of 17.04％ to 12.57％,the mediation effect of three subcomponents accounted for 7.12％ ～ 13.85％.Conclusion:It suggests that social support may play a mediating effect on the relationship between childhood abuses and non-suicidal selfinjury.

P75 was the risk factor (PP50 were risk factors (P

Objective The incidence of cardiovascular and cerebrovascular diseases in postmenopausal women with type 2 diabetes is grim.The study was designed to explore the effect of ω-3 polyunsaturated fatty acids (PUFA) on endothelial function in postmenopausal women with type 2 diabetes. Methods 50 patients admitted to Dingli Medical College of Wenzhou Medical Univer-sity from March 2014 to October 2014 were divided into group A and Group B by random number table .Cross-design of two stages ( I, II) was applied in the investigation .At stage I(3 months ahead of the experiment ), Group A took oral ω-3 PUFA while Group B took placebo .At stage II ( 3 months after the experiment ) , Group B was given oral ω-3 PUFA, while Group A was given placebo .T1 and T3 time was the beginning of the stage I and stage II experiment , while T2 and T4 time was the end of stage I and stage II experiment .At the beginning and end of each stage , detection was made on LDL-C, TG, IL-6, plasminogen activator inhibitor-1 (PAI-1) and endothelium-dependent flow-mediated vasodilation (FMD). Results After the intervention on Group A at stage I , FDM at T2 time was significantly increased compared with that at T 1 time([7.23 ±3.28]% vs [3.62 ±2.13]%, P<0.05), while all the other indexes at T2 time decreased significantly in comparison with T1 time: LDL-C ([2.85 ±0.47]mmol/L vs [3.36 ±0.57] mmol/L), TG([2.41 ±1.06]mmol/L vs [2.96 ±1.12] mmol/L), IL-6([2.83 ± 0.30]ng/L vs [3.42 ±0.32]ng/L), PAI-1 ([7.23 ±3.28]ng/L vs [3.62 ±2.13]ng/L) (P<0.05).After receiving ω-3 PUFA intervention on Group B at stage II , FDM at T4 time was significantly increased compared with that at T 3 time([6.88 ±2.06]% vs [3.60 ±2.18]%, P<0.05), while all the other indexes at T4 time decreased significantly in comparison with T3 time: LDL-C ([3.26 ±0.77]mmol/L vs [3.63 ±0.73] mmol/L), TG([2.28 ±0.94]mmol/L vs [2.77 ±1.25] mmol/L), IL-6([2.91 ± 0.48]ng/L vs [3.30 ±0.52]ng/L), PAI-1 ([45.7 ±24.4]ng/L vs [56.3 ±24.4]ng/L) (P<0.05).Two-period crossover design analysis of variance showed that there was significant difference effect on LDL -C(F=2.754, P=0.019), TG(F=3.115, P=0.011), IL-6(F=1.825, P=0.032), PAI-1(F=2.324, P=0.023) and FMD(F=3.784, P=0.006)between ω-3 PUFA and placebo . Conclusion ω-3 PUFA can improve endothelial function in postmenopausal women with type 2 diabetes , which is of great significance for the primary prevention of cardiovascular disease .