Results 51 to 60 of about 8,623,839 (302)

Seasonal Response of Workers of the Allegheny Mound Ant, \u3ci\u3eFormica Exsectoides\u3c/i\u3e (Hymenoptera: Formicidae) to Artificial Honeydews of Varying Nutritional Content [PDF]

, 2018
Field colonies of Allegheny mound ants, Formica exsectoides, were tested at monthly intervals throughout the summer to assess their preference for artificial honeydews containing varying compositions of sugars and amino acids.
Bristow, C. M, Yanity, E.
core   +2 more sources

Protolytic properties and biological activity of spinorphin and its butyric acid derivatives in aqueous solution

Amino Acids
The present work describes the protolytic properties and in vitro biological activity of spinorphin (Leu-Val-Val-Tyr-Pro-Trp-Thr) and three spinorphin derivatives containing butyric acid residue: Butyryl-Lys-Lys-Leu-Leu-Val-Tyr-Pro-Trp-Thr, Butyryl-Lys ...
Marek Pająk, Elżbieta Kamysz, Marcin Banach, Wojciech Michał Jankowski, Aleksandra Tarasiuk-Zawadzka, Jakub Fichna, Magdalena Woźniczka   +6 more
doaj   +1 more source

L-tyrosine inhibits the formation of amyloid fibers of human lysozyme at physiological pH and temperature

Amino Acids
Amyloid fibers are implicated in numerous diseases, making their study crucial for identifying effective therapeutic compounds. This research highlights the ability of L-tyrosine to inhibit the formation of amyloid fibers in human lysozyme.
Santos López, Arturo Rojo-Domínguez, Roxana López-Simeon, Alejandro Sosa-Peinado, Hugo Nájera   +4 more
doaj   +1 more source

Exploring the therapeutic potential of L-arginine in chronic anal fissure management: a comprehensive review

Amino Acids
Anal fissure causes pain and bleeding during or after bowel movements, significantly impacting individuals’ quality of life. Current treatments aim to interrupt this cycle but have associated risks and limitations.
Nogol Motamed-Gorji, Mohsen Masoodi, Masoumeh Khalighi Sikaroudi, Shahram Agah, Nikta Masoodi   +4 more
doaj   +1 more source

Modification of Aminoacyl tRNA Synthetase in Order to Incorporate an Unnatural Amino Acid [PDF]

, 2018
Proteins allow daily processes in the cell to occur. A protein consists of amino acids. There are twenty natural amino acids coded for in the DNA of organisms. The natural amino acids can be modified to form unnatural amino acids (UAAs). UAAs have useful
Burkhart, Grace
core   +1 more source

Amino acids in the cultivation of mammalian cells

Amino Acids, 2016
Amino acids are crucial for the cultivation of mammalian cells. This importance of amino acids was realized soon after the development of the first cell lines, and a solution of a mixture of amino acids has been supplied to cultured cells ever since. The
Andrew Salazar, M. Keusgen, J. von Hagen
semanticscholar   +1 more source

Child Stunting is Associated with Low Circulating Essential Amino Acids

EBioMedicine, 2016
Background Stunting affects about one-quarter of children under five worldwide. The pathogenesis of stunting is poorly understood. Nutritional interventions have had only modest effects in reducing stunting.
R. Semba, M. Shardell, Fayrouz A Sakr Ashour, R. Moaddel, Indi Trehan, K. Maleta, M. I. Ordiz, K. Kraemer, M. Khadeer, L. Ferrucci, M. Manary   +10 more
semanticscholar   +1 more source

MTR4 methylation-dependent degradation activates mTORC1 signaling to promote glioma cell survival under methionine starvation

Amino Acids
Methionine is an essential amino acid for the human body. Understanding how tumor cells adjust their signaling networks to evade apoptosis and sustain proliferation in a methionine starvation tumor microenvironment is a significant scientific question ...
Lude Wang, Qiuwen Lou, Jie Chang, Zhijian Xu, Fan Yang, Qi Tu, Jianmin Zhang, Wenxia Xu, Minfeng Tong   +8 more
doaj   +1 more source

Creatine homeostasis and the kidney: comparison between kidney transplant recipients and healthy controls

Amino Acids
Creatine is a natural nitrogenous organic acid that is integral to energy metabolism and crucial for proper cell functioning. The kidneys are involved in the first step of creatine production. With kidney transplantation being the gold-standard treatment
Adrian Post, Dion Groothof, Daan Kremer, Tim J. Knobbe, Willem Abma, Christa A. Koops, Dimitrios Tsikas, Theo Wallimann, Robin P.F. Dullaart, Casper F.M. Franssen, Ido P. Kema, M. Rebecca Heiner-Fokkema, Stephan J.L. Bakker   +12 more
doaj   +1 more source

Impact contribution of prebiotic reactants to Earth [PDF]

It is proposed that the AIB amino acid at the K/T boundary were synthesized during entry of a comet. However, whether they were synthesized or supplied directly from space, the concentration of amino acids in the shallow K/T sea would have been about 10 ...
Aggarwal, Hans R.
core   +1 more source