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Find video protocols related to scientific articles indexed in Pubmed.
The use of mixed generalized additive modeling to assess the effect of temperature on the usage of emergency electrocardiography examination among the elderly in Shanghai.
PLoS ONE
PUBLISHED: 01-01-2014
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Acute coronary artery diseases have been observed to be associated with some meteorological variables. But few of the previous studies considered autocorrelated outcomes. Electrocardiography is a widely used tool in the initial diagnosis of acute cardiovascular events, and emergency electrocardiography counts were shown to be highly correlated with acute myocardial infarction in our pilot study, hence a good index of prediction for acute cardiovascular events morbidity among the elderly. To indirectly assess the impact of temperature on the number of acute cardiovascular events, we studied the association between temperature and emergency electrocardiography counts while considering autocorrelated nature of the response variables.
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Evaluation of midkine as a diagnostic serum biomarker in hepatocellular carcinoma.
Clin. Cancer Res.
PUBLISHED: 05-29-2013
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To evaluate the value of serum midkine (MDK) as a diagnostic biomarker in hepatocellular carcinoma, particularly for those with negative alpha-fetoprotein (AFP) and at an early stage.
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The efficacy, safety and cost-effectiveness of hydrotalcite versus esomeprazole in on-demand therapy of NERD: A multicenter, randomized, open-label study in China.
J Dig Dis
PUBLISHED: 05-11-2013
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The aim of the study was to investigate whether hydrotalcite was comparable to esomeprazole, a proton pump inhibitor, in on-demand therapy for non-erosive reflux disease (NERD).
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[Alpha-linolenic acid improves insulin sensitivity in obese patients].
Zhonghua Yi Xue Za Zhi
PUBLISHED: 05-08-2013
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To explore the effects of ?-linolenic acid on insulin sensitivity in obese patients.
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Glycated haemoglobin in diagnosis of diabetes mellitus and pre-diabetes among middle-aged and elderly population: Shanghai Changfeng study.
Biomed. Environ. Sci.
PUBLISHED: 02-22-2013
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To investigate the optimal glycated haemoglobin (HbA1c) cut off points and evaluate the impact of HbA1c on diabetes and pre-diabetes in middle-aged and elderly population.
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Effectiveness and safety of 0.15% ganciclovir in situ ophthalmic gel for herpes simplex keratitis - a multicenter, randomized, investigator-masked, parallel group study in Chinese patients.
Drug Des Devel Ther
PUBLISHED: 01-01-2013
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Parallel comparison with 0.15% ganciclovir (GCV) ophthalmic gel to evaluate the effectiveness and safety of 0.15% GCV in situ ophthalmic gel for the treatment of herpes simplex keratitis (HSK).
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Follow-up results of children with melamine induced urolithiasis: a prospective observational cohort study.
World J Pediatr
PUBLISHED: 06-01-2011
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Melamine-contaminated milk powder was the cause of the 2008 outbreak of urolithiasis in young children and infants in China, but the prognosis of these children remains unknown. We hypothesized that urolithiasis induced by melamine-contaminated milk powder may be associated with secondary renal injury.
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Antigenic and genetic variation in the hemagglutinins of H1N1 and H3N2 human influenza a viruses in the Shanghai area from 2005 to 2008.
J. Med. Virol.
PUBLISHED: 02-02-2011
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Continued rapid evolution of the influenza A virus is responsible for annual epidemics and occasional pandemics in the Shanghai area. In the present study, the representative strains of A/H1N1 and A/H3N2 influenza viruses isolated in the Shanghai area from 2005 to 2008 were antigenically and genetically characterized. The antigenic cartography method was carried out to visualize the hemagglutination-inhibition data. Antigenic differences were detected between circulating A/H1N1 strains isolated from 2005 to 2006 and the epidemic A/H1N1 strains isolated in 2008, which were found to be associated with the amino acid substitution K140E in HA1. The present vaccine strain A/Brisbane/59/2007 is considered to be capable of providing sufficient immunity against most of the circulating A/H1N1 viruses isolated in 2008 from the Shanghai population. The study showed that there were significant antigenic differences between the epidemic A/H3N2 strains isolated in 2007 and 2008, suggesting that antigenic drift had occurred in the A/H3N2 strains isolated in 2008. The P194L mutation was thought to be responsible for the antigenic evolution of influenza A/H3N2 viruses isolated from Shanghai in 2008. Evidence of antigenic drift suggests that the influenza A/H3N2 vaccine component needs to be updated.
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Surgical strategies for petroclival meningioma in 57 patients.
Chin. Med. J.
PUBLISHED: 11-02-2010
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Resection of petroclival meningioma (PCM) is difficult for neurosurgeons and usually brings poor performance status. In this study, we evaluated the possible risk factors for unfavorable clinical outcomes of surgical treatment of PCM, and tried to explore the optimal surgical strategies for better postoperative quality of life.
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[The application study of community-based tele-screening system for diabetic retinopathy in Beixinjing Blocks, Shanghai].
Zhonghua Yan Ke Za Zhi
PUBLISHED: 05-11-2010
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To design the community-based tele-screening system for diabetic retinopathy and evaluate the feasibility of it.
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[Study on the main influencing factors of mixed-pixel spectral characteristics].
Guang Pu Xue Yu Guang Pu Fen Xi
PUBLISHED: 12-03-2009
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Hyperspectral remote sensing can improve the identification and classification of surface features through the spectrum comparing and matching to achieve classification and recognition. Because of the spatial resolution of the sensor as well as the difference in complexity and diversity on the ground, mixed pixels in the image are prevalent in remote sensing. The problem of subpixel unmixing is a prominent issue in the quantitative application of remote sensing. How to effectively interpret the mixed-pixel is one of the key issues in the application of remote sensing. In the present paper, the hyperspectral reflectance characteristics of the mixed-pixels formed with two kinds of materials whose area ratios have always been 1 : 1 were studied at different incident zenith angles and different topology location distribution, which provides a theoretical basis for the mixed pixel classification accuracy improvement.
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[Risk factors for acute fulminant myocarditis in children].
Zhongguo Dang Dai Er Ke Za Zhi
PUBLISHED: 08-22-2009
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To investigate the risk factors for fulminant myocarditis by analyzing clinical symptoms/signs or laboratory findings in children with viral myocarditis.
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[The impact of air temperature variation on the visits to emergency room in Shanghai].
Zhonghua Liu Xing Bing Xue Za Zhi
PUBLISHED: 07-02-2009
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To assess the association between air temperature and emergency room visits among patients covered by medical care program from third-grade hospitals in Shanghai.
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[Effects of multi-angle hyperspectral polarized reflection by forest soil].
Guang Pu Xue Yu Guang Pu Fen Xi
PUBLISHED: 05-22-2009
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In the present study, the authors measured samples of typical forest soils in different states with multi-angle hyperspectral polarized reflections. The authors analyzed multi-angle hyperspectral polarized reflections of soil data with various viewing zenith angles, incidence angles, relative azimuth angles, polarized states, soil water content and soil granule. The authors found that those factors affected the reflectance values of forest soils but not the spectral feature. The conclusions included that the larger the incidence angles and viewing zenith angles are, the bigger the polarized reflectance values of the surface of the forest soil. When the forest soil was dry, the surface had phenomenon of diffuse reflection and the polarized light reflection did not take place. When the soil moisture content reached a certain level, the polarized reflection appeared. The more the moisture content of the forest soil was, the smaller the polarized reflectance of the surface. The bigger the soil granule was and the rougher the soil surface was, the smaller the surface polarized reflectance. The results and conclusions suggested that the spectral characteristics of the ground target need to be considered adequately in order to design the best mode for sensor systems by remote sensing technology. The authors suggest that the incidence angle and viewing zenith angle be selected on the basis of factual instance. The authors suggest using larger viewing zenith angles and that the incidence angle should be equal to the viewing zenith angle. In the meantime, the effects of sheltering by ground targets need to be considered and the proper state of polarization should be chosen while keeping relative zenith angle at 180 degrees. This study not only helps find a new way for detection of soil characters, but also provides a theoretical basis for further research on multi-angle hyperspectral polarized reflection for detecting characteristic spectrum and best states in measuring forest soil.
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Incidence of myopia in high school students with and without red-green color vision deficiency.
Invest. Ophthalmol. Vis. Sci.
PUBLISHED: 04-11-2009
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To investigate the influence of color vision on myopia development by testing refraction error and axial length of the eye for high school students with and without color vision deficiency (CVD).
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Chaotic signatures of heart rate variability and its power spectrum in health, aging and heart failure.
PLoS ONE
PUBLISHED: 02-02-2009
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A paradox regarding the classic power spectral analysis of heart rate variability (HRV) is whether the characteristic high- (HF) and low-frequency (LF) spectral peaks represent stochastic or chaotic phenomena. Resolution of this fundamental issue is key to unraveling the mechanisms of HRV, which is critical to its proper use as a noninvasive marker for cardiac mortality risk assessment and stratification in congestive heart failure (CHF) and other cardiac dysfunctions. However, conventional techniques of nonlinear time series analysis generally lack sufficient sensitivity, specificity and robustness to discriminate chaos from random noise, much less quantify the chaos level. Here, we apply a litmus test for heartbeat chaos based on a novel noise titration assay which affords a robust, specific, time-resolved and quantitative measure of the relative chaos level. Noise titration of running short-segment Holter tachograms from healthy subjects revealed circadian-dependent (or sleep/wake-dependent) heartbeat chaos that was linked to the HF component (respiratory sinus arrhythmia). The relative HF chaos levels were similar in young and elderly subjects despite proportional age-related decreases in HF and LF power. In contrast, the near-regular heartbeat in CHF patients was primarily nonchaotic except punctuated by undetected ectopic beats and other abnormal beats, causing transient chaos. Such profound circadian-, age- and CHF-dependent changes in the chaotic and spectral characteristics of HRV were accompanied by little changes in approximate entropy, a measure of signal irregularity. The salient chaotic signatures of HRV in these subject groups reveal distinct autonomic, cardiac, respiratory and circadian/sleep-wake mechanisms that distinguish health and aging from CHF.
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[Development and evaluation of an inquiry scale for diagnosis of heart system syndromes in traditional Chinese medicine].
Zhong Xi Yi Jie He Xue Bao
PUBLISHED: 01-13-2009
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To develop an inquiry scale for diagnosis of heart system syndromes, and to discuss the provisional standardization of the inquiry method in traditional Chinese medicine (TCM).
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Antidepressant effect of geranylgeranylacetone in a chronic mild stress model of depression and its possible mechanism.
Exp Ther Med
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Depression is a highly debilitating and widely distributed illness in the general population. Geranylgeranylacetone (GGA), a non-toxic anti-ulcer drug, has been reported to have protective effects in the central nervous system. The aim of this study was to determine the antidepressant effect of GGA in a chronic mild stress (CMS) model of depression. We confirmed that CMS in rats caused a reduction in locomotor activity and an increase in the levels of monoamine oxidase-A (MAO-A) and caspase-3 in the hippocampus. GGA treatment reversed stress-induced alterations in locomotor activity and target levels of MAO-A and caspase-3. In addition, GGA treatment induced heat shock protein 70 (Hsp70) expression in the hippocampus. These findings suggest that GGA possesses an antidepressant activity in a CMS model of depression. The activity of GGA in the relief of depression may be mediated via the induction of Hsp70 expression to suppress MAO-A expression and the apoptosis cascade.
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[Ovarian ultrasonographic features in reproductive age females with polycystic ovary syndrome and the establishment of ultrasonographic criteria].
Zhonghua Yi Xue Za Zhi
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To understand the ovarian ultrasound imaging features in the reproductive age females with polycystic ovary syndrome (PCOS).
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Comparison of blue light-filtering IOLs and UV light-filtering IOLs for cataract surgery: a meta-analysis.
PLoS ONE
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A number of published randomized controlled trials have been conducted to evaluate visual performance of blue light-filtering intraocular lenses (IOL) and UV light-filtering intraocular lenses (IOL) after cataract phacoemulsification surgery. However, results have not always been consistent. Therefore, we carried out a meta-analysis to compare the effectiveness of blue light-filtering IOLs versus UV light-filtering IOLs in cataract surgery.
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What is Visualize?

JoVE Visualize is a tool created to match the last 5 years of PubMed publications to methods in JoVE's video library.

How does it work?

We use abstracts found on PubMed and match them to JoVE videos to create a list of 10 to 30 related methods videos.

Video X seems to be unrelated to Abstract Y...

In developing our video relationships, we compare around 5 million PubMed articles to our library of over 4,500 methods videos. In some cases the language used in the PubMed abstracts makes matching that content to a JoVE video difficult. In other cases, there happens not to be any content in our video library that is relevant to the topic of a given abstract. In these cases, our algorithms are trying their best to display videos with relevant content, which can sometimes result in matched videos with only a slight relation.