Results 261 to 270 of about 758,630 (312)
Some of the next articles are maybe not open access.
Are dissolved free amino acids free?
Microbial Ecology, 1984Microbial assimilation of 3 amino acids (glutamic acid, alanine, and ornithine) was characterized in 3 lakes and 2 marine stations using the Michaelis-Menten kinetic approach. The calculated Kt + Sn concentrations were related to chemical concentration measurements of dissolved free amino acids (DFAA) to evaluate the biological and the chemical ...
N O, Jørgensen, M, Søndergaard
openaire +2 more sources
Free amino acids in the pregnant uterus
American Journal of Obstetrics and Gynecology, 1969Abstract Free amino acids in seven pregnant human uteri were quantitatively determined and compared to tissues from nonpregnant patients. Only uterine glycine and lysine were found to decline significantly. Other amino acids generally increased. Serum amino acids from pregnant and nonpregnant patients were also compared, and uterine-serum ratios ...
A B, Lorincz, R E, Kuttner
openaire +2 more sources
Free amino acids in spider hemolymph
Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 2008We examined the free amino acid composition of hemolymph from representatives of five spider families with an interest in knowing if the amino acid profile in the hemolymph of orb-web-building spiders reflects the high demands for small organic compounds in the sticky droplets of their webs.
Tillinghast, Edward K., Townley, Mark A.
openaire +3 more sources
Axoplasmic transport of free amino acids
Brain Research, 1973Abstract (1) Following the injection of l -[14C]proline into one eye in carp, the label appeared in the contralateral optic nerve via axoplasmic flow. As reported previously, protein-bound activity showed faster and slower axoplasmic transport. Labeled free proline appeared in nerve before labeled protein and thus did not originate from labeled ...
V, Csanyi, J, Gervai, A, Lajtha
openaire +2 more sources
Free amino acids in the caiman and rat
Comparative Biochemistry and Physiology, 1966Abstract 1. 1. Free amino acids and total ninhydrin reactive compounds were determined in alcoholic extracts of the tissues of fasting and fed caimans and fasting rats. 2. 2. Total ninhydrin reactants exceeded the sum of amino acids on the chromatogram several-fold. 3. 3.
J D, Herbert, R A, Coulson, T, Hernandez
openaire +2 more sources
Lysosomal pool of free-amino acids
Biochemical and Biophysical Research Communications, 1981Abstract Free (non-protein) amino acids were measured in whole rat liver and in unmodified lysosomes which were prepared from rat liver by the technique of free-flow electrophoresis. Significant intralysosomal pools of threonine, serine, valine, cystine, methionine, isoleucine, leucine, tyrosine, phenylalanine, lysine and arginine were found.
E, Harms, N, Gochman, J A, Schneider
openaire +2 more sources
Free Amino Acid Content of Perilymph
Archives of Otolaryngology - Head and Neck Surgery, 1971The free amino acid content of horse perilymph, cerebrospinal fluid, and blood serum was comparatively studied. The results obtained show clear-cut differences between the three fluids, and suggest that perilymph may be considered as a biological fluid with its own specific characteristics, probably correlated to the metabolism of its secreting ...
S, Crifò, C, Crifò
openaire +2 more sources
Free Amino Acids in Mammalian Tissue
Acta Physiologica Scandinavica, 1951Summary.1. Free amino acids in tissues form different groups. Some acids are present in high relative concentrations in blood serum as well as in all tissues investigated. Other acids are absent from blood serum but present in one or more of the tissues. Some acids are present in high relative concentrations in certain organs only.2.
T, ASTRUP, G, CARLSTROM, A, STAGE
openaire +2 more sources
The free amino acids in Trichomonas foetus
Experimental Parasitology, 1962Abstract The free amino acid content of protoplasmic extracts of Trichomonas foetus was determined by unidimensional polychromatic and two-dimensional paper chromatography to include cystine-cysteine, aspartic acid, glycine, serine, glutamic acid, threonine, alanine, tyrosine, leucine-isoleucine, ornithine, lysine, arginine, valine, methionine ...
openaire +2 more sources
Free Amino Acids in Human Saliva
Journal of Dental Research, 1973By the use of thin layer chromatographic techniques and exchange column chromatography, 20 free amino acids were found in human saliva. No qualitative or semiquantitative differences in the amino acid content were observed among caries-susceptible and caries-resistant individuals 20 to 30 years old.
P H, Papanayotou +2 more
openaire +2 more sources