Read by QxMD icon Read

Calcium silicate disease pathogen

Theophilus K Udeigwe, Peter N Eze, Jasper M Teboh, Mohammed H Stietiya
Contaminants such as nitrogen (N), phosphorus (P), dissolved organic carbon (DOC), arsenic (As), heavy metals, and infectious pathogens are often associated with agricultural systems. Various soil and water remediation techniques including the use of chemical amendments have been employed to reduce the risks associated with these contaminants. This paper reviews the use of chemical amendments for immobilizing principal agricultural contaminants, the chemistry of contaminant immobilization, and the environmental consequences associated with the use of these chemical products...
January 2011: Environment International
K W Seebold, T A Kucharek, L E Datnoff, F J Correa-Victoria, M A Marchetti
ABSTRACT The application of silicon (Si) fertilizers reduces the severity of blast, caused by Magnaporthe grisea, in irrigated and upland rice; however, little research has been conducted to examine the epidemiological and etiological components of this reduction. Four cultivars of rice with differential susceptibilities to race IB-49 of M. grisea were fertilized with three rates of a calcium silicate fertilizer and inoculated with the pathogen to test the effects of Si on the following components of resistance to blast: incubation period, latent period, infection efficiency, lesion size, rate of lesion expansion, sporulation per lesion, and diseased leaf area...
January 2001: Phytopathology
David Coon, Ajay Gulati, Cameron Cowan, Jianing He
Prostaglandin E2 (PGE(2)) is an important inflammatory mediator that plays an essential role in the development and progression of periradicular diseases. Cyclooxygenase-2 (COX-2) is the inducible enzyme responsible for increased PGE(2) levels during inflammation and other pathologic processes. The purpose of this study was to determine the role of COX-2-mediated PGE(2) synthesis in osteoclast formation in response to endodontic pathogens and materials. Primary osteoblast cultures and osteoclast cultures were prepared from COX-2 knockout (K/O) and wild-type (WT) littermates...
April 2007: Journal of Endodontics
R C Perkins, V C Broaddus, S Shetty, S Hamilton, S Idell
Inhalation of asbestos is associated with pathologic changes in the pleural space, including pleural thickening, pleural plaques, and mesothelioma. These processes are characterized by altered local proteolysis, cellular proliferation, and cell migration, suggesting that the urokinase-type plasminogen activator receptor (uPAR) could be involved in the pathogenesis of asbestos-induced pleural disease. We hypothesized that mesothelial cell uPAR expression is induced by exposure to asbestos. To test this hypothesis, we used complementary techniques in rabbit and human mesothelial cells to determine whether uPAR expression is altered by exposure to asbestos...
November 1999: American Journal of Respiratory Cell and Molecular Biology
P H Evans, J Klinowski, E Yano, N Urano
The occurrence of aluminosilicate deposits within the cerebral plaques in Alzheimer's senile dementia sufferers has prompted further consideration of the possible role of such materials in the aetiology and pathogenesis of the disease. We have monitored the ability of various natural and synthetic model aluminosilicate particulates of differing morphological and chemical composition to stimulate the generation of phagocyte-derived free radical reactive oxygen metabolites (ROM) using an in vitro chemiluminescent technique on purified human blood-derived polymorphonuclear leukocytes (PMN)...
1989: Free Radical Research Communications
P M Renzi, J Mantha, N Matar, G D Renzi
Man-Made Mineral Fibres (MMMF) are starting to replace asbestos in the insulation industry. The popularity of these fibres has increased since the demonstration, in man, of the fibrogenicity and carcinogenicity of asbestos. A fear of human toxicity of MMMF has followed the demonstration of toxicity in animals after injection or instillation. This review of the litterature discusses the toxicity and side effects of MMMF. These fibres seem to have less toxicity than asbestos for the following reasons: 1. A lower concentration of fibres found in the air of the MMMF industry...
March 1990: L'unión Médicale du Canada
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"