Search results for "supplementation"
showing 6 items of 86 documents
Tryptophan metabolic pathways and brain serotonergic activity: A comparative review
2019
The essential amino acid L-tryptophan (Trp) is the precursor of the monoaminergic neurotransmitter serotonin (5-hydroxytryptamine, 5-HT). Numerous studies have shown that elevated dietary Trp has a suppressive effect on aggressive behavior and post-stress plasma cortisol concentrations in vertebrates, including teleosts. These effects are believed to be mediated by the brain serotonergic system, even though all mechanisms involved are not well understood. The rate of 5-HT biosynthesis is limited by Trp availability, but only in neurons of the hindbrain raphe area predominantly expressing the isoform TPH2 of the enzyme tryptophan hydroxylase (TPH). In the periphery as well as in brain areas …
Tryptophan Metabolic Pathways and Brain Serotonergic Activity: A Comparative Review
2019
The essential amino acid L-tryptophan (Trp) is the precursor of the monoaminergic neurotransmitter serotonin (5-hydroxytryptamine, 5-HT). Numerous studies have shown that elevated dietary Trp has a suppressive effect on aggressive behavior and post-stress plasma cortisol concentrations in vertebrates, including teleosts. These effects are believed to be mediated by the brain serotonergic system, even though all mechanisms involved are not well understood. The rate of 5-HT biosynthesis is limited by Trp availability, but only in neurons of the hindbrain raphe area predominantly expressing the isoform TPH2 of the enzyme tryptophan hydroxylase (TPH). In the periphery as well as in brain areas …
Suplementy diety dla sportowców w aspekcie przepisów antydopingowych
2022
Motywacja w zakresie stosowania suplementów diety w sporcie jest duża i silnie skorelowana z potrzebą osiągania coraz lepszych wyników przez konsumenta. Dane pochodzące z Centrum Badań Opinii Społecznej wskazują, że dziewięciu na dziesięciu dorosłych Polaków stosuje suplementację, a sportowcy wielokrotnie sięgają po kilka suplementów jednocześnie. Korzystanie z suplementów zależy przede wszystkim od rodzaju uprawianej dyscypliny sportowej i wzrasta wraz z intensywnością treningu oraz wiekiem respondentów. Opublikowane dane sugerują również, że sportowcy są skłonni przyjmować suplementy bez gromadzenia wiarygodnych informacji o zawartych w nich substancjach aktywnych. Dlatego w historii spor…
Improving food offer in order to prevent and tackle undernutrition
2021
When a person shows a decline in appetite or loses weight, is essential to adapt his/her diet in order to fulfil the nutritionc needs and prevent undernutrition. Three axes must but considered and combined: enriching diet (increasing the content of essential nutrients in a meal without increasing! the volume to be ingested); adapting food texture to orc capacities (chewing, salivation, swallowing); optimizing food sensory characteristics by taking into account food habit and food preferences.