The recent discovery of the mode of interaction between a group of microbial proteins known as superantigens and the immune system has opened a wide area of investigation into the possible role of these molecules in human diseases. Superantigens produced by certain viruses and bacteria, including Mycoplasma species, are either secreted or membrane-bound proteins. A unique feature of these prote...

Snake antivenoms are the only definitive management of snake envenoming. Parenteral administration of antivenom mitigates the toxic effects due to snake venom components. However, these benefits come with additional risk of antivenom reactions. The morbidity and mortality of antivenom reactions largely go unnoticed due to lack of awareness and many times these are wrongly attributed to effects ...

The objective of the current research is carrying out the evaluation of the distribution, source, and environmental health risk of polycyclic aromatic hydrocarbons (PAHs) compounds in soil samples taken from the vicinity of Tehran-Semnan road, Iran. This road is a densely populated one in central northern part of Iran with a heavy load of vehicular traffics and several industrial complexes. Fou...

The aim of this study was to compare the cost-effectiveness ratio of new versus reprocessed coronary artery catheters in a Federal public hospital. This was an analytical decision-making model prepared to estimate the cost-effectiveness ratio between two strategies in the use of materials in coronary artery catheterization, with pyrogenic reaction as the clinical outcome. Costs were estimated u...

As an important component of soil organic matter (SOM), the transformation of pyrogenic carbon plays a critical role in the biogeochemical cycles of carbon and other redox-active elements such as iron (Fe). Herein, we studied the influences of wheat straw-derived biochars on the microbial reduction of 100 mM of hematite by the dissimilatory metal reducing bacteria Shewanella oneidensis MR-1 und...

It is a long-established clinical observation that most microbial infections are associated with fever. With many of these agents, however, the pathogenesis of fever has been only recently elucidated and it is apparent that several different mechanisms may be implicated.' The following studies were undertaken to compare fevers induced in rabbits by a nonpathogenic fungus, Cryptococcus albidus, ...

Fires play an important role in the modern dynamics of boreal ecosystems. The article presents results studying effect old fires on soils and soil organic matter (SOM) native spruce forests that were last affected by previous 100 to 200 years. studies carried out European north-east Russia (Komi Republic) Central Siberia (Krasnoyarsk region). objects study typical Glossic Stagnic Retisol (Silti...

Martin, William J. (University of Utah, Salt Lake City), and Stanley Marcus. Detoxified bacterial endotoxins. I. Preparation and biological properties of an acetylated crude endotoxin from Salmonella typhimurium. J. Bacteriol. 91:1453-1459. 1966.-Acetylation of a crude endotoxin prepared by the Roschka-Edwards (RE) procedure from a strain of Salmonella typhimurium yields a product with reduced ...