Results 101 to 110 of about 291,953 (142)
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Physiological Reviews, 2005
The fish gill is a multipurpose organ that, in addition to providing for aquatic gas exchange, plays dominant roles in osmotic and ionic regulation, acid-base regulation, and excretion of nitrogenous wastes.
D. Evans, P. Piermarini, K. Choe
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The fish gill is a multipurpose organ that, in addition to providing for aquatic gas exchange, plays dominant roles in osmotic and ionic regulation, acid-base regulation, and excretion of nitrogenous wastes.
D. Evans, P. Piermarini, K. Choe
semanticscholar +1 more source
2008
The function termed ‘excretion’ includes all the processes of removing the waste products derived from the cellular metabolism. It is a process essential at all levels of living systems organization. It involves transport of molecules across the plasmatic membranes of cells that form the wall of compartmentalized structures present in specialized ...
BELTRAMINI, MARIANO, F. Benetti
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The function termed ‘excretion’ includes all the processes of removing the waste products derived from the cellular metabolism. It is a process essential at all levels of living systems organization. It involves transport of molecules across the plasmatic membranes of cells that form the wall of compartmentalized structures present in specialized ...
BELTRAMINI, MARIANO, F. Benetti
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Urinary sodium and potassium excretion and risk of cardiovascular events.
Journal of the American Medical Association (JAMA), 2011CONTEXT The precise relationship between sodium and potassium intake and cardiovascular (CV) risk remains uncertain, especially in patients with CV disease. OBJECTIVE To determine the association between estimated urinary sodium and potassium excretion
M. O’Donnell +11 more
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Transactions of the Royal Society of Tropical Medicine and Hygiene, 1946
Abstract 1. 1. There was a marked contrast between a therapeutic dose level (1 mg./kg.) and a toxic level (10 mg./kg.) in the percentage urinary excretion of stilbamidine in rats. 2. 2. Considerably more (in one series of experiments about twenty times) amidine was determined by the glyoxal than by the fluorescence method. 3. 3.
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Abstract 1. 1. There was a marked contrast between a therapeutic dose level (1 mg./kg.) and a toxic level (10 mg./kg.) in the percentage urinary excretion of stilbamidine in rats. 2. 2. Considerably more (in one series of experiments about twenty times) amidine was determined by the glyoxal than by the fluorescence method. 3. 3.
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Biological Reviews, 1947
SummaryOligochaete nephridia are now classified into holonephridia and meronephridia; the former are large and occur as a pair per segment, while the latter are small and are numerous in each segment. The meronephridia are derived from holonephridia by a process of branching and multiplication either at an early or a late stage of development.
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SummaryOligochaete nephridia are now classified into holonephridia and meronephridia; the former are large and occur as a pair per segment, while the latter are small and are numerous in each segment. The meronephridia are derived from holonephridia by a process of branching and multiplication either at an early or a late stage of development.
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Prediction of urinary and fecal nitrogen excretion by beef cattle.
Journal of Animal Science, 2014An analysis of predicting urinary and fecal N excretion from beef cattle was conducted using a data set summarizing 49 published studies representing 180 treatment means for 869 animals. Variables included in the data set were initial BW (kg), DMI (kg/d),
R. Dong, G. Zhao, L. Chai, K. Beauchemin
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2014
The organs of Cladocera and data related to excretion are reviewed. Rates of nitrogen and phosphorus excretion are indicated. Recent data mainly concern the distribution of xenobiotics within the body, as well as the bioaccumulation and transformation of xenobiotics. Studies concerning the routes of elimination of xenobiotics are also discussed.
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The organs of Cladocera and data related to excretion are reviewed. Rates of nitrogen and phosphorus excretion are indicated. Recent data mainly concern the distribution of xenobiotics within the body, as well as the bioaccumulation and transformation of xenobiotics. Studies concerning the routes of elimination of xenobiotics are also discussed.
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Pharmacology & Therapeutics, 1979
Abstract Excretion data for any xenobiotic can be a very informative portion of a balance study if one is adequately prepared to interpret it. Things which should be considered are the route of administration, the molecular weight of the parent compound and possible metabolites, the polarity of the parent compound, the possibility of nonpolar ...
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Abstract Excretion data for any xenobiotic can be a very informative portion of a balance study if one is adequately prepared to interpret it. Things which should be considered are the route of administration, the molecular weight of the parent compound and possible metabolites, the polarity of the parent compound, the possibility of nonpolar ...
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THE ABSORPTION AND EXCRETION OF WATER AND SALTS BY MARINE TELEOSTS
, 1930It is a peculiar and interesting fact that marine teleosts excrete urine which is isotonic or hypotonic with respect to the blood, and therefore of considerably lower osmotic pressure than sea water (Rodier, 1899; Bottazzi, 1906; Dekhuyzen, 1905; Burian,
Homer W. Smith
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Pediatrics, 1983
To the Editor.— The data presented by Sutphen1 are interesting, but they do not speak to the conclusions that are drawn in the paper. If urine creatinine excretion is supposed to reflect body muscle (protein) mass, why wasn't creatinine excretion expressed as milligrams per kilogram of actual weight v actual weight?
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To the Editor.— The data presented by Sutphen1 are interesting, but they do not speak to the conclusions that are drawn in the paper. If urine creatinine excretion is supposed to reflect body muscle (protein) mass, why wasn't creatinine excretion expressed as milligrams per kilogram of actual weight v actual weight?
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