taurina a cosa serve?
 

buongiorno ragazzi a cosa serve la taurina nel campo sportivo ovvio ? nel campo pratico so cosa vuol dire . ma non ho mai capito perche la gente la prende come pre oppure la sera prima di andare a letto:).

Prima di andare a letto mi pare difficile, non ci sarebbe alcun motivo.

Nel prewo può migliorare la concentrazione, inoltre è il secondo aminoacido presente nei muscoli, dopo la glutammina, quindi ha anche un potenziale effetto anticatabolico.

Prima di andare a dormire secondo alcuni concilierebbe un sonno più profondo

Io la prendo 3o4 volte al gg, anche prebed.

molto spesso ho letto che per la forma L assimilabile per via orale bisognava utilizzare una dose molto alta ma gli effetti ricercati non sempre erano garantiti e quindi veniva messo tra gli integratori ''inutili''...

tempo fa ne avevo aperto u nthread. praticamente sarebeb bene paragonarla alla glutammina come importanza.... cioè la tautrina si puo prender anche benissimo tutti i gorni 1 grammo a i 3 pasti. ha varie funzioni antiossidanti, anticatabolice... un po energizzanti... e se non erro anche per gli occhi piu aiutare. diciamo che assieme alla lgutammina.. è un aminoacido della salute tuttofare

si quoto..da prendere in dosi dilazionate non troppo abbondanti giornaliere preferibilmente con carbo

ok ragazzi , grazie cmq, pero' anche io sapevo che la taurina prendendo 3 g a sera migliorava il sonno
Agendo da neurotrasmettitore, ha un'azione calmante sul cervello esui nervi: quest'azione può servire persino in casi di epilessia.Esercita un'azione positiva anche nel metabolismo degli zuccheri ed èun coadiuvante dell'insulina (quindi utile per i diabetici).
E' uncoadiuvante dello zinco, della vitamina A, della vitamina B2 e dialtri fattori sconosciuti, utili per mantenere in salute gli occhi:animali da esperimento privati della taurina addirittura persero lavista. La carenza di taurina può causare una perdita dimemoria.
L'effetto più importante è sulla depressione. Nel girodi pochi giorni dall'assunzione di taurina (sinergizzata con altrielementi) possono normalizzarsi stati depressivi intensi, con lascomparsa dei pensieri neri, della stanchezza di vivere, delpessimismo più sconsolato, del desiderio di autodistruzione.Ovviamente il massimo degli effetti positivi si ha solo se vieneassunta insieme a tutti gli altri bioregolatori (vitamine, saliminerali, ecc.) che ne completano e ne potenziano l'azione. L'effettopositivo è allora rapido ed eclatante, ma temporaneo, in quanto nonsi può far guarire definitivamente una disfunzione cronica come ladepressione: al più, la si può tenere a bada, come se non esistessepiù, il che costituisce già una grande vittoria. La taurina,eliminando i sintomi della depressione, calma anche il sistemanervoso: ciò vuol dire che sovente concilia il sonno, il che non èun male: si sa che il sonno è un buon mezzo per rimettere in sestoun sistema nervoso stanco, sovraeccitato.
quanti grammi va presa ?

i dosaggi dovrebbero essere in base al peso e alla corporatura
da prendere durante il giorno dilazionati

A parte che la depressione non è necessariamente una "disfunzione" cronica, ma dov'è che avresti appreso degli eclatanti effetti antidepressivi della taurina?

veleno l ho letto su internet cmq quanti grammi si prendono di taurina?

ma non capsico allora il motivo per il quale sia presente in tutti gli energy drink se ha effetto calmante... :confused:

anche io sapevo che aveva propietà stimolanti:confused:

Sul cuore aumentava la gettata cardiaca nei topi ricordo. Sul SNC non so, ma appunto favorirebbe un sonno più profondo. Del resto anche la carnitina si prende prima di un allenamento m è consigliata anche prima diddormire

Ma negli energy drink mi pare ce ne sia ben poca comunque. La red bull secondo me ha un buon sapore, purtroppo quando sono in gita sono convinto che la comprerei anche se costasse 10 euro a lattina
Ultimamente però mi sono fissato maggiormente col bacardi :D

Probabilmente sono tutte proprietà fantomatiche: io la prendo la mattina e pre wo senza risultati apprezzabili.
Che abbia poi marcati effetti antidepressivi mi giunge del tutto nuova, e non ci credo neanche di striscio...

Da un mio vecchio post:

"Amino Acids. 2004 Jun;26(3):267-71. Epub 2003 Dec 15.

Beneficial effects of taurine on serum lipids in overweight or obese non-diabetic subjects.
Zhang M, Bi LF, Fang JH, Su XL, Da GL, Kuwamori T, Kagamimori S.

Department of Welfare Promotion and Epidemiology, Toyama Medical and Pharmaceutical University, Toyama, Japan.

Abstract
Taurine has beneficial effects on lipid metabolism in experimental animals fed with high-cholesterol or high fat diets. Whether taurine benefits lipid metabolism in humans has rarely been investigated. The aim of this study was to evaluate the effects of taurine on serum lipids in overweight or obese young adults. Thirty college students (age: 20.3+/-1.7 years) with a body mass index (BMI) >/=25.0 kg/m(2), and with no evidence of diabetes mellitus were selected and assigned to either the taurine group (n=15) or the placebo group (n=15) by double-blind randomization. Taurine 3 g/day or placebo was taken orally for 7 weeks. Triacylglycerol (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C) and plasma glucose were measured before and after supplementation. The atherogenic index (AI) was calculated as (TC-HDL-C)/HDL-C. There were no differences in any baseline parameter between the two groups. Taurine supplementation decreased TG and AI significantly. Body weight also reduced significantly in the taurine group. These results suggest that taurine produces a beneficial effect on lipid metabolism and may have an important role in cardiovascular disease prevention in overweight or obese subjects.




The role of taurine in the central nervous system and the modulation of intracellular calcium homeostasis.
Foos TM, Wu JY.

Department of Molecular Biosciences, University of Kansas, Lawrence 66045, USA.

Abstract
The effects of taurine in the mammalian nervous system are numerous and varied. There has been great difficulty in determining the specific targets of taurine action. The authors present a review of accepted taurine action and highlight recent discoveries regarding taurine and calcium homeostasis in neurons. In general there is a consensus that taurine is a powerful agent in regulating and reducing the intracellular calcium levels in neurons. After prolonged L-glutamate stimulation, neurons lose the ability to effectively regulate intracellular calcium. This condition can lead to acute swelling and lysis of the cell, or culminate in apoptosis. Under these conditions, significant amounts of taurine (mM range) are released from the excited neuron. This extracellular taurine acts to slow the influx of calcium into the cytosol through both transmembrane ion transporters and intracellular storage pools. Two specific targets of taurine action are discussed: Na(+)-Ca2+ exchangers, and metabotropic receptors mediating phospholipase-C.



Taurine induces anti-anxiety by activating strychnine-sensitive glycine receptor in vivo.
Zhang CG, Kim SJ.

Department of Pharmacology and Metabolic Diseases Research Laboratory, School of Dentistry, Kyung Hee University, Seoul, Korea.

Abstract
Taurine has a variety of actions in the body such as cardiotonic, host-defensive, radioprotective and glucose-regulatory effects. However, its action in the central nervous system remains to be characterized. In the present study, we tested to see whether taurine exerts anti-anxiety effects and to explore its mechanism of anti-anxiety activity in vivo. The staircase test and elevated plus maze test were performed to test the anti-anxiety action of taurine. Convulsions induced by strychnine, picrotoxin, yohimbine and isoniazid were tested to explore the mechanism of anti-anxiety activity of taurine. The Rotarod test was performed to test muscle relaxant activity and the passive avoidance test was carried out to test memory activity in response to taurine. Taurine (200 mg/kg, p.o.) significantly reduced rearing numbers in the staircase test while it increased the time spent in the open arms as well as the number of entries to the open arms in the elevated plus maze test, suggesting that it has a significant anti-anxiety activity. Taurine's action could be due to its binding to and activating of strychnine-sensitive glycine receptor in vivo as it inhibited convulsion caused by strychnine; however, it has little effect on picrotoxin-induced convulsion, suggesting its anti-anxiety activity may not be linked to GABA receptor. It did not alter memory function and muscle activity. Taken together, these results suggest that taurine could be beneficial for the control of anxiety in the clinical situations.

Copyright (c) 2007 S. Karger AG, Basel.




Antioxidant role and subcellular location of hypotaurine and taurine in human neutrophils.
Green TR, Fellman JH, Eicher AL, Pratt KL.

Department of Biochemistry and Molecular Biology, Oregon Health Sciences University, Portland 97207.

Abstract
The subcellular location of taurine, and its precursor, hypotaurine, within human neutrophils has been examined by nitrogen cavitation, Percoll-gradient centrifugation and HPLC analysis. Hypotaurine and taurine were found to reside within the cytosolic compartment of the cell. The ratio of taurine to hypotaurine is approx 50:1. The cytosolic concentration of taurine is approx. 50 mM. The concentration of hypotaurine decreased by 80% when resting neutrophils were converted into actively respiring cells by exposure to opsonized zymosan. These results prompted in vitro studies on the antioxidant properties of hypotaurine. We demonstrate by EPR spectroscopy that hypotaurine competes with 5,5'-dimethyl-1-pyrroline N-oxide) (DMPO) for hydroxyl radicals, and that it is the sulfinyl group which confers hydroxyl radical scavenging activity to it. Following its exposure to hydroxyl radicals, two oxidation products were isolated by HPLC, one of which has been identified as taurine. The biological roles of hypotaurine and taurine in the neutrophil are discussed with respect to their antioxidant properties and subcellular location within the cell.



Therapeutic applications of taurine.
Birdsall TC

Thorne Research, Inc., Dover, ID 83825, USA. tim@thorne.com

Abstract
Taurine is a conditionally-essential amino acid which is not utilized in protein synthesis, but rather is found free or in simple peptides. Taurine has been shown to be essential in certain aspects of mammalian development, and in vitro studies in various species have demonstrated that low levels of taurine are associated with various pathological lesions, including cardiomyopathy, retinal degeneration, and growth retardation, especially if deficiency occurs during development. Metabolic actions of taurine include: bile acid conjugation, detoxification, membrane stabilization, osmoregulation, and modulation of cellular calcium levels. Clinically, taurine has been used with varying degrees of success in the treatment of a wide variety of conditions, including: cardiovascular diseases, hypercholesterolemia, epilepsy and other seizure disorders, macular degeneration, Alzheimer's disease, hepatic disorders, alcoholism, and cystic fibrosis."