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Urine Formaldehyde Predicts Cognitive Impairment in Post-Stroke Dementia and Alzheimer's Disease.

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Although Alzheimer's disease (AD) was first described over 100 years ago, there is still no suitable biomarker for diagnosing AD in easily collectable samples (e.g., blood plasma, saliva, and urine). Here, we investigated the relationship between morning urine formaldehyde concentration and

Effect of b value on contrast during diffusion-weighted magnetic resonance imaging assessment of acute ischemic stroke.

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OBJECTIVE To examine the effect of varying the diffusion encoding strength (b value) on the contrast (signal difference, Delta S) between damaged and normal tissue during diffusion-weighted magnetic resonance imaging (DWI) assessment of acute ischemic stroke. METHODS Phantoms with diffusion values

Frog palate mucociliary apparatus: structure, function, and response to formaldehyde gas.

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The upper respiratory tract mucociliary apparatus represents one of the first defenses against inhaled noxious materials. The frog palate has been widely used as a model to investigate the mode of action of this apparatus and to study its response to irritant gases. Video analysis was used here for

Treatment of Human Placental Choriocarcinoma Cells with Formaldehyde and Benzene Induced Growth and Epithelial Mesenchymal Transition via Induction of an Antioxidant Effect.

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Cigarette smoke (CS) causes about 480,000 deaths each year worldwide, and it is well-known to have harmful effects on the human body, leading to heart disease, stroke, lung cancer, and cardiovascular problems. In this study, the effects of formaldehyde (FA) and benzene (Bz), the main components of

A rapid and sensitive fluorescence method for detecting urine formaldehyde in patients with Alzheimer's disease.

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BACKGROUND Morning urine formaldehyde concentrations could predict the severe degree of dementia in patients with post-stroke dementia and Alzheimer's disease. However, the routinely available technique of high-performance liquid chromatography (HPLC) for detecting urine formaldehyde requires

Emissions of aldehydes and ketones from a two-stroke engine using ethanol and ethanol-blended gasoline as fuel.

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Besides aliphatic gasoline, ethanol-blended gasoline intended for use in small utility engines was recently introduced on the Swedish market. For small utility engines, little data is available showing the effects of these fuels on exhaust emissions, especially concerning aldehydes and ketones

Effects of formaldehyde on cardiovascular system in in situ rat hearts.

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The aim of the present study was to examine the effects of formaldehyde solution on rat left ventricular function and compare it with those in hypertrophic hearts treated with isoproterenol by pressure-volume measurements with the catheter method. After 20-30 min. of intravenous infusion of 3.7%

An increase of anticardiolipin antibody in association with stroke and chronic chemical exposure.

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A chemical worker working with urea-formaldehyde resin hazard for 20 years suffered cerebral ischemia in association with an increase of blood beta2-glycoprotein I-dependent anticardiolipin antibody (aCL)-IgG and IgM isotype, and a prolongation of activated partial thromboplastin time (aPTT). Major

Production of complete heart block and utero cardiac pacing in fetal lambs.

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We produced a complete heart block in 5 fetal lambs at 120 to 135 days of gestation by injecting 10% formaldehyde into the His bundle. We obtained acute experimental data in 5 fetuses and chronic experimental data in 2 fetuses. Immediately after production of the complete heart block, cardiac output

Occupational exposure to chain saw exhausts in logging operations.

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The composition of exhaust emissions from two-stroke chain saw engines was studied. The emissions of exhaust were sampled and analyzed under controlled laboratory experiments. The compounds sampled were those considered primarily responsible for acute health effects--hydrocarbons, aldehydes,

Impairment of the blood-brain barrier: a potential surrogate delineating the determinants of cerebral bleeding caused by fibrinolytic drugs.

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BACKGROUND Intracranial bleeding is encountered in some patients with acute myocardial infarction treated with fibrinolytic drugs, and especially in patients with occult cerebral vasculopathy. In order to determine whether pharmacologically induced plasminemia is a determinant, and whether

The anatomical variation of the circulus arteriosus cerebri in a cadaver cohort representing the population dynamics of the Western Cape.

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The literature revealed a connection between the variations of the Circulus arteriosus cerebri (CAC) and cerebrovascular disease, ischemia, stroke, aneurysms and atherosclerosis. The diameters of the vessels forming the CAC have been classified into 22 types by previous authors. The aim of this

Volatile organic profiles and photochemical potentials from motorcycle engine exhaust.

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This study surveyed emissions from 2- and 4-stroke new and in-use motorcycles. Emission tests were carried out on a dynamometer following the designated test procedure of the Economic Commission for Europe (ECE). Samples were derived during various driving stages, which included idle, acceleration,

Photosynthesis: a short history of some modern experimental approaches.

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This paper presents a personal interpretation of a chapter of plant physiology beginning from the early 1930s to the early 1940s, when plant physiologists tried to find the missing link between the two (dark and light) phases of photosynthesis. As initially inferred by Richard Willstätter and Arthur

Pathomorphologic findings in left ventricular hypertrabeculation/noncompaction of adults in relation to neuromuscular disorders.

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BACKGROUND Aim of this study was to assess pathomorphologic findings (PATHO) in patients with echocardiographically (ECHO) diagnosed left ventricular hypertrabeculation/noncompaction. METHODS ECHO-criteria for LVHT were: >3 trabeculations, moving synchronously with the compacted myocardium, and

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