Glycine is an inhibitory neurotransmitter that is mainly active in the caudal areas of the CNS. However, glycine also participates in excitatory neurotransmission since it is a co-agonist of the NMDA subtype of glutamate receptors. The concentration of glycine at synapses is mainly controlled by two sodium and chloride dependent transporters, GLYT1 and GLYT2, proteins that display a complementary distribution and activity in the nervous system. Our understanding of the physiological role of these transporters has advanced recently, thanks to the development of specific inhibitors and the generation of mice defective in the corresponding genes. In addition, the three-dimensional resolution of the structure of a bacterial homologue has shed light on the mechanisms of glycine transport. It is likely that this knowledge will prove to be useful for the development of drugs with antipsychotic, procognitive or analgesic properties.
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http://dx.doi.org/10.1002/iub.128 | DOI Listing |
J Phys Chem B
January 2025
Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States.
Direct air capture of CO using amino acid absorbents, such as glycine or sarcosine, is constrained by the relatively slow mass transfer of CO through the air-aqueous interface. Our recent study showed a marked improvement in CO capture by introducing CO-permeable oligo-dimethylsiloxane (ODMS-MIM) oligomers with cationic (imidazolium, MIM) headgroups. In this work, we have employed all-atom molecular dynamics simulations in combination with subensemble analysis using network theory to provide a detailed molecular picture of the behavior of CO and the glycinate anions (Gly) at the ODMS-MIM decorated air-aqueous interfaces.
View Article and Find Full Text PDFAnal Chem
January 2025
Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States.
The nuclear pore complex (NPC) is the proteinous nanopore that solely regulates molecular transport between the nucleus and cytoplasm of a eukaryotic cell. Hypothetically, the NPC utilizes the hydrophobic barriers based on the repeats of phenylalanine-glycine (FG) units to selectively and efficiently transport macromolecules. Herein, we quantitatively assess the hydrophobicity of transport barriers confined in the nanopore by applying scanning electrochemical microscopy (SECM).
View Article and Find Full Text PDFFront Plant Sci
January 2025
Institute of Chinese Materia Medica, Shaanxi Provincial Academy of Traditional Chinese Medicine, Xi'an, Shaanxi, China.
Drought stress inhibits Bunge () seedling growth and yield. Here, we studied the effects of drought stress on the different parts of seedlings through physiological, transcriptomic, and metabolomics analyses, and identified key genes and metabolites related to drought tolerance. Physiological analysis showed that drought stress increased the accumulation of hydrogen peroxide (HO), enhanced the activity of peroxidase (POD), decreased the activity of catalase (CAT) and the contents of chlorophyll b and total chlorophyll, reduced the degree of photosynthesis, enhanced oxidative damage in seedlings, and inhibited the growth of plants.
View Article and Find Full Text PDFIran J Basic Med Sci
January 2025
Faculty of Medicine, Universitas Jenderal Achmad Yani, Jalan Terusan Jenderal Sudirman, Cimahi 40531 PO Box 148, Indonesia.
Objectives: Soybeans have various positive effects on health, including anti-inflammatory and preventing kidney damage. There is concern regarding the phytoestrogen content due to the high isoflavone content in soybeans. Various forms of soybean processing have been tried; in this study, the hydrolysis method will be used to obtain the active substance Arginine-Glycine-Aspartate (RGD) tripeptide in soybean protein hydrolyzed by bromelain (SPHB).
View Article and Find Full Text PDFFront Immunol
January 2025
Department of Geriatrics, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen, China.
Objective: Chronic kidney disease (CKD) is a major global health problem. In clinical practice, the Chinese patent herbal medicine Jianpi-Yishen (JPYS) formula is commonly used to treat CKD. However, the molecular mechanisms by which JPYS targets and modulates the host immune response remain unclear.
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