Taurine

Oja, Simo S.; Kontro, P.

doi:10.1007/978-1-4684-4367-7_18

Cited by 29 publications

(22 citation statements)

References 349 publications

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“…Taurine, like most amino acids, enters the cell by a Na+-dependent, energy-mediated, specific and saturable transport system (Oja and Kontro, 1983). Taurine uptake in many cells also has a component that is Na+-independent, and nonsaturable.…”

Section: Discussionmentioning

confidence: 99%

Volume‐sensitive release of taurine from cultured astrocytes: Properties and mechanism

Pasantes‐Morale¹,

Morán²,

Schousboe

1990

Glia

146

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Release of taurine in response to cell swelling induced by hyposmolarity was observed in cultured astrocytes. Efflux of 3H-taurine increased by 30% and 70% upon reductions in osmolarity of only 5% and 10%. Reductions in osmolarity of 20%, 30%, and 50% stimulated basal taurine release by 300%, 500%, and 1,500%, respectively. The properties of this volume-sensitive release of taurine were examined to investigate: 1) its association with K+ and Cl- fluxes, currently activated during volume regulation: 2) its relationship with Ca2(+)-dependent reactions; and 3) the mechanism of the taurine efflux process. Taurine release was unaffected by removal of Na+, Ca2+, or Cl-, by pimozide and trifluoperazine, or by agents disrupting the cytoskeleton. The K+ channel inhibitors barium, quinidine, tetraethylammonium, and gadolinium had no effect. Taurine release was reduced by furosemide, a blocker of K+/Cl- cotransport, but not by the more specific inhibitor, bumetanide. It was markedly reduced by the inhibitors of Cl- channels DIDS, SITS, and anthracene-9-carboxylate. Taurine efflux was pH-dependent, being reduced at low pH values. It was decreased at 4 degrees C but not at 14 degrees C or 20 degrees C. These results suggest that the volume-sensitive release of taurine is independent of K+ fluxes but may be associated with Cl- conductances. It also seems unrelated to Ca2(+)-dependent transduction mechanisms. The Na(+)-dependent taurine carrier apparently is not involved in the swelling-induced release process.

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Section: Discussionmentioning

confidence: 99%

Volume‐sensitive release of taurine from cultured astrocytes: Properties and mechanism

Pasantes‐Morale¹,

Morán²,

Schousboe

1990

Glia

146

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“…Taurine (2-aminoethane sulfonic acid) is an amino acid synthesized from methionine via cysteine by a series of enzymatic reactions (Oja and Kontro 1983). It is considered as a conditionally indispensable amino acid for marine or cold water fish species.…”

Section: Introductionmentioning

confidence: 99%

Taurine supplementation in diet for olive flounder at low water temperature

et al. 2017

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The objective of this study was to examine the effect of dietary supplementation of taurine for juvenile olive flounder (Paralichthys olivaceus) at low water temperature (16.4 ± 0.36°C). Fish meal (FM)-based diet was used as the control diet. Four other experimental diets were prepared by adding taurine to FM-based diet at 0.25, 0.50, 1.00, and 1. 50% (T1, T2, T3, and T4, respectively). Each experimental diet was fed to triplicate groups of fish (initial mean body weight, 19.5 g) for 10 weeks. At the end of the feeding trial, growth performance and feed utilization, hematological parameters, non-specific immune responses, whole-body proximate composition, and liver mRNA expression of insulin-like growth factor-1 (IGF-1) were investigated. Feed conversion ratio was significantly reduced while protein efficiency ratio was significantly increased in taurine-supplemented groups. Hematocrit and hemoglobin were also significantly increased while plasma cholesterol levels were decreased in taurine-supplemented groups than those in the control group. Nitroblue-tetrazolium, myeloperoxidase and lysozyme activities, and plasma immunoglobulin level were significantly increased by taurine supplementation. These results suggest that dietary taurine supplementation is effective in improving growth performances, feed utilization, and innate immunity of olive flounder in low water temperature season.

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“…This paper presents results on the magnetic CP stars HD 32633, 25 Sex, HR 7224, and HD 200311. Table 1 gives important information on the variable, comparison, and check stars from Hoffleit (1982) and Hoffleit et al (1983) supplemented by values from Deutschman et al (1976) and Oja (1983). …”

Section: Introductionmentioning

confidence: 99%

Strömgren uvby photometry of the magnetic Chemically Peculiar stars HD 32633, 25 Sex, HR 7224, and HD 200311

Adelman

1997

Astron. Astrophys. Suppl. Ser.

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Abstract. Differential Strömgren uvby photometric observations from the Four College Automated Photoelectric Telescope refine the rotational periods and define the shapes of the light curves of four magnetic Chemically Peculiar stars. HD 32633 (P = 6.43000 d) exhibits an inphase variability with asymmetrically shaped light curves. 25 Sex (P = 4.37900 d) has a complex variability with the v, b, and y light variability crudely in phase, but quite different from that of u. HR 7224 (P = 1.123095 d) shows in-phase variability with two nearly equal secondary minima. HD 200311 (P = 26.0042 d), which was previous thought to be a long period variable, is found to be a modest photometric variable.

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Taurine

Cited by 29 publications

References 349 publications

Volume‐sensitive release of taurine from cultured astrocytes: Properties and mechanism

Volume‐sensitive release of taurine from cultured astrocytes: Properties and mechanism

Taurine supplementation in diet for olive flounder at low water temperature

Strömgren uvby photometry of the magnetic Chemically Peculiar stars HD 32633, 25 Sex, HR 7224, and HD 200311

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