Fasting plasma caffeine level in cirrhotic patients: Relation to plasma levels of catecholamines and renin activity

Hepatology ◽  
1989 ◽  
Vol 10 (6) ◽  
pp. 973-977 ◽  
Author(s):  
Mayumi Hasegawa ◽  
Sadako Yamada ◽  
Chisato Hirayama
1993 ◽  
Vol 104 (5) ◽  
pp. 1492-1497 ◽  
Author(s):  
Baudouin Byl ◽  
Ingrid Roucloux ◽  
Alain Crusiaux ◽  
Etienne Dupont ◽  
Jaqugs Devière

1983 ◽  
Vol 55 (6) ◽  
pp. 1790-1794 ◽  
Author(s):  
R. P. Francesconi ◽  
M. N. Sawka ◽  
K. B. Pandolf

This study was designed to assess the effects of hydration, acclimation, environment, and exercise on plasma levels of renin and aldosterone. Sixteen subjects exercised (1.34 m X s-1), both pre- and postacclimation, when euhydrated or hypohydrated (-5% of body wt) in a comfortable (20 degrees C, rh = 40%), hot-wet (35 degrees C, rh = 79%), or hot-dry (49 degrees C, rh = 20%) environment. Although light exercise in a thermoneutral environment had no effects on plasma levels of renin activity (PRA) or aldosterone (ALD), exercise in both hot environments resulted in significantly increased levels of both. Increments in both PRA and ALD were greater when hypohydrated, and PRA effects were significantly moderated by heat acclimation in both the euhydration and hypohydration experiments. Although PRA and ALD responses were generally correlated, acclimation did not consistently attenuate ALD increments. We concluded that hydration state, acclimation level, and environmental conditions all affected the responses of PRA and ALD to light exercise.


Author(s):  
Tilman Kühn ◽  
Sabine Rohrmann ◽  
Disorn Sookthai ◽  
Theron Johnson ◽  
Verena Katzke ◽  
...  

AbstractBackground:Circulating trimethylamine-Methods:We measured fasting plasma levels of TMAO and two of its precursors, betaine and choline by LC-MS, in two samples of 100 participants of the European Investigation into Cancer and Nutrition (EPIC)-Heidelberg study (age range: 47–80 years, 50% female) that were collected 1 year apart, and assessed their intra-individual variation by Spearman’s correlation coefficients (ρ).Results:Correlations of metabolite concentrations over 1 year were at ρ=0.29 (p=0.003) for TMAO, ρ=0.81 (p<0.001) for betaine, and ρ=0.61 (p<0.001) for choline. Plasma levels of TMAO were not significantly associated with food intake, lifestyle factors, or routine biochemistry parameters such as C-reactive protein (CRP), low-density lipoprotein (LDL)-cholesterol, or creatinine.Conclusions:In contrast to fasting plasma concentrations of betaine and choline, concentrations of TMAO were more strongly affected by intra-individual variation over 1 year in adults from the general population. The modest correlation of TMAO levels over time should be considered when interpreting associations between TMAO levels and disease endpoints.


2014 ◽  
Vol 146 (5) ◽  
pp. S-707 ◽  
Author(s):  
Diego Garcia-Compean ◽  
Joel O. Jaquez-Quintana ◽  
Jose A Gonzalez ◽  
Fernando J. Lavalle-Gonzalez ◽  
Hector J. Maldonado ◽  
...  

2007 ◽  
Vol 21 (5) ◽  
Author(s):  
Steven W Bailey ◽  
Patricia B Alverson ◽  
Mamoru Nozawa ◽  
Michael V Cohen ◽  
June E Ayling

The Lancet ◽  
1985 ◽  
Vol 326 (8469-8470) ◽  
pp. 1439-1440 ◽  
Author(s):  
A. Fernández-Cruz ◽  
J. Marco ◽  
L.M. Cuadrado ◽  
J. Gutkowska ◽  
D. Rodriguez-Puyol ◽  
...  

1978 ◽  
Vol 47 (6) ◽  
pp. 1183-1189 ◽  
Author(s):  
DAVID BERGER ◽  
ROBERT C. CROWTHER ◽  
JOHN C. FLOYD ◽  
SUMER PEK ◽  
STEFAN S. FAJANS

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