HumansLaboratory animalsDosageNumerous patrol studies have provided a sizable data base of levels of CO2 exposure and health problems encountered by Naval nuclear submariners. Humans have been exposed to a variety of concentrations of CO2 for chronic periods of time aboard submarines, as well as in...
While high levels, even 100% oxygen are used for medical purposes in some cases (hyperbaric oxygen patients breathe 100% O2 at pressures above 2 to 2.4 ATM for 40-60 minutes),breathing high levels of oxygen can be toxic for humans and other animals. (Toxicity of excessive oxygen will ...
were considered to be specific for that condition, but the discovery of a phosphate-regulating gene named klotho (after one of the Fates in Greek mythology) has caused a lot of rethinking of the biological role of phosphate. In the 19th century, phosphorus was commonly called brain food, and...
13]. HMs cannot be easily removed from the top of the food chain once they have entered it, and they are thus cycled throughout the entire food web. Numerous hyperaccumulated plants provide nourishment for both humans as well as animals. As a result, the rotation from soil to humans thru...
Plastics were considered as a magical material owing to their strong, non-degradable and versatile characteristics. After five decades of mass application, plastics’ property of non-biodegradability has become one of the key concerns for scientists, civ
The answer is ... (thanks to Mark Cramer, Tampa) ... It depends - on whether the sources of indoor pollutants - (excluding roadway NOX) that are likely to be present - fuel burning appliances, are likely to produce hazardous levels of NOx *without* producing detectable levels of CO2 or...
The genus Methylophaga belonging to the γ-subclass of Proteobacteria is a unique methylotrophic group, which consumes one-carbon (C1) compounds of a more reduced form than that of CO2 as a sole source of energy and carbon44. Members of this genus are aero- bic, halophilic, non-methane-...
Plastics were considered as a magical material owing to their strong, non-degradable and versatile characteristics. After five decades of mass application, plastics’ property of non-biodegradability has become one of the key concerns for scientists, civ
For any such application, it is mandatory to test and provide information on toxicity/ill effects of the compound under consideration. While humans are the endpoint beneficiary for all such applications, due to ethical reasons it is not possible to conduct toxicity testing directly on human beings...
Our studies demonstrate that PM cholesterol is required for uptake and clearance of toxic amylin oligomers but not monomers from the cell plasma membrane and that cell susceptibility to amylin insult is inversely related to PM cholesterol levels. EXPERIMENTAL PROCEDURES Cell Cultures Rat insulinoma (RIN...