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Academic literature on the topic 'Sodium dans l'organisme'
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Journal articles on the topic "Sodium dans l'organisme"
FAUVERT, RENÉ, and ANDRÉ LOVERDO. "Etude des mouvements du sodium dans l'organisme humain au moyen du sodium radio-actif (Na24)." Acta Medica Scandinavica 139, S259 (April 24, 2009): 274. http://dx.doi.org/10.1111/j.0954-6820.1951.tb13317.x.
Full textDissertations / Theses on the topic "Sodium dans l'organisme"
Renard, Stéphane. "Les cibles pharmacologiques de l'amiloride : canal-sodium epithelial et diamine oxydase." Nice, 1994. http://www.theses.fr/1994NICE4792.
Full textHonore, Eric. "Mise en évidence et origine de deux composantes de la contraction du muscle papillaire de cobaye." Lille 1, 1986. http://www.theses.fr/1986LIL10030.
Full textMême, William. "Rôle de la Ca2+-ATPase du réticulum sarcoplasmique et participation de l'échange sodium/calcium dans la réponse contractile de la fibre musculaire squelettique de grenouille." Tours, 1998. http://www.theses.fr/1998TOUR3307.
Full textThe purpose of the present work was to assess the relative role of the sarcoplasmic reticulum in promoting relaxation in fast-twitch skeletal fibres from frog semitendinosus muscle. The effects of cyclopiazonic acid (CPA) a specifie inhibitor of the sarcoplasmic reticulum calcium ATPase was tested on the calcium transient, the isometric tension, the calcium sensitivity of the contractile proteins and on the calcium currents. The results show that the inhibition of the sarcoplasmic reticulum calcium ATPase induces a twitch potentiation which was associated with a broadening rather than an increase in the amplitude of the calcium transient. On the potassium contractures, CPA at low concentration produces an increase in the amplitude and in the time course of the relaxation without alteration in the activation of the voltage sensor. Moreover, CPA (:5: 2 JlM) does not changes the resting and action potentials. In skinned fibers, the calcium sensitivity of the contractile proteins was not modified while the maximal tension was decreased by CPA (> 5 JlM). The amplitude of the calcium current (!CaL) was decreased by CPA at 2 J. 1M while thapsigargin (1 J. L. M) has no effect. In the presence of CPA, the decrease in the external sodium concentration induces a transient contracture related to an influx of calcium through the sodium calcium exchange in the reverse mode
Huc, Sylvaine. "Caractérisation moléculaire et structurale de l'extrémité C-Terminale du co-transporteur sodium/iode humain (hNIS) : implication de ce domaine dans la régulation du transporteur." Montpellier 1, 2007. http://www.theses.fr/2007MON13516.
Full textOmouessi, Serge Thierry. "Influences de l'aldostérone et l'angiotensine II dans le contrôle central de l'appétit spécifique pour le sodium chez le rat Zucker obèse." Nancy 1, 2007. http://www.theses.fr/2007NAN10049.
Full textZucker rats have a recessive mutation in the gene fa/fa that suppresses the leptin receptor and thus it presents similarities with human obesity via its metabolic syndrome. Known for its sensitivity to sodium Zuckers have a predisposition to develop hypertension. It is thus an ideal model to study the synergistic influences of aldosterone and angiotensin II (AngII), the two principal hormones of the renin-angiotensinaldosterone. (SRAA) system, as weil as the role that obesity plays in the regulation of sodium appetite (ASS). Obese Zucker rats prefer isotonie to hypertonie NaCl and under dehydration and/or high temperature conditions regulate hydromineral balance by increasing significantly intake of water and NaCl. Depleted of sodium with a diuretic female Zucker rats show a greater sodium appetite than males. Despite their increased weight obese Zucker rats regulate their sodium and hydrational balance similar to the lean genetic controls. Central injection of a low dose of AngII stimulates consumption of water but not sodium in Zucker rats. However, peripheral mineralocorticoid combined with a central injection of Angli stimulates a significant ASS, greater in obese than lean Zucker rats. DOCA increases also the sensitivity of spontaneously active neurons to locally applied Angli in the septum and subfornical organ. Furthermore, obese Zucker rats have a higher background plasma aldosterone level than lean rats. These results suggest that aldosterone may be the principal hormone of the SRAA that plays a key role in the regulation of an ASS in obese Zucker rats. This increased central sensitivity to AngII and thus sodium may be the basis of their predisposition to hypertension
Paradis, Frédérique. "Validation d'un outil d'évaluation alimentaire à l'aide de biomarqueurs de l'apport alimentaire." Master's thesis, Université Laval, 2021. http://hdl.handle.net/20.500.11794/68762.
Full textIn the majority of fields of human nutrition research, questioning individuals about their food intake is required either to verify the effects of an intervention or to associate usual intakes with other variables related to health. Automated self-administered web-based tools have particularly raised enthusiasm in recent years which allowed their development. Hence, it is essential to validate dietary assessment tools with appropriate methods in order to avoid obtaining biased results. This thesis will focus on the validation of a 24-hour dietary recall web application (R24W) for a French-speaking adult population from the Province of Quebec created by our research team using rigorous methods, such as sodium, potassium and urine urea from 24-hour urine collections. Individual factors that may influence the accuracy of the dietary self-report were also assessed. The results suggest the validity of R24W for sodium, potassium and protein intakes for the study population at the individual level and group level for the three nutrients. Except for body esteem related to appearance in women, no individual factors were found to be associated with the difference between the reported intakes and the measured intakes by the urine biomarkers. The upcoming validation for energy intake with the doubly labeled water method will be helpful to better appreciate the overall validity of the R24W. This will allow, in future studies, to draw very reliable research conclusions related to the quality of the diet and health.
Grondin, Marie-Ève. "Rôle des enképhalines et des récepteurs mu opiacés dans l'appétit pour le sel." Master's thesis, Université Laval, 2006. http://hdl.handle.net/20.500.11794/18343.
Full textArbour, Danielle. "Implication du noyau dorsomédian du lit de la strie terminale dans les circuits de l'homéostasie sodique." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/26944/26944.pdf.
Full textBelabbas, Hassiba. "Angiogenèse et raréfaction vasculaire cardiaque : interaction entre hypertension artérielle, angiotensine II et sodium : étude in vitro et in vivo chez le rat." Montpellier 1, 2008. http://www.theses.fr/2008MON1T008.
Full textAl, Hajj Sally. "Effets des concentrations élevées en chlorure de sodium sur les fonctions immunitaires des cellules dendritiques." Electronic Thesis or Diss., Tours, 2019. http://www.theses.fr/2019TOUR3309.
Full textRecent evidence showed that in response to elevated sodium dietary intakes, many body tissues retain Na+ ions for long periods to reach concentrations up to 200 mM. Recent studies suggested that the immune system might be the bridge linking high sodium intake to several cardiovascular diseases and cancer progression as well. However, the studies about the effects of sodium on immunity brought about contrasted results. So far the effects of sodium on human dendritic cells (DCs) remain unknown. Considering their central role in the immune response, we tested how sodium chloride-enriched medium influences the immune properties of human DCs. DCs were derived from CD14+ monocytes from healthy donors and then stimulated by LPS, in sodium-enriched medium (from 140 up to 200 mM) and finally analyzed. We found that DCs cultivated in high Na+ concentrations remain viable and maintain the expression of DC markers up to 200 mM. In response to LPS, their maturation, their chemotaxis toward CCL19, their production of pro-inflammatory cytokines and ROS were inhibited by high [Na+]. In line with these results, we report that the T-cell allostimulatory capacity of DCs was also inhibited. Finally our data indicate that these effects were mediated through the phosphorylation of SGK-1 (serum and glucocorticoid induced kinase-1) and ERK1/2 kinases.Our results raised the possibility that the effects of sodium on T-cells might be counterbalanced by its ability to downregulate DC activation. Therefore the effects of high sodium diet on the immune response might be more complex than previously thought
Books on the topic "Sodium dans l'organisme"
MacGregor, Graham. Salt, diet and health: Neptune's poisoned chalice : the origins of high blood pressure. Cambridge: Cambridge University Press, 1998.
Find full textThe Na, K-pump: Proceedings of the 5th International Conference on Na, K-ATPase held at Fuglso Conference Center, Denmark, June 14-19, 1987 (Progress in clinical and biological research). A.R. Liss, 1988.
Find full textThe Na, K-pump: Proceedings of the 5th International Conference on Na, K-ATPase held at Fuglso Conference Center, Denmark, June 14-19, 1987 (Progress in clinical and biological research). A.R. Liss, 1988.
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