The impact of diabetes or elevated fasting blood glucose on cardiovascular prognosis in patients with stable angina pectoris

2005 ◽  
Vol 22 (10) ◽  
pp. 1326-1333 ◽  
Author(s):  
C. Held ◽  
I. Bjorkander ◽  
L. Forslund ◽  
N. Rehnqvist ◽  
P. Hjemdahl
1997 ◽  
Vol 135 (1) ◽  
pp. 109-118 ◽  
Author(s):  
Claes Held ◽  
Paul Hjemdahl ◽  
Nina Rehnqvist ◽  
Inge Björkander ◽  
Lennart Forslund ◽  
...  

2010 ◽  
Vol 4 (4) ◽  
pp. 183
Author(s):  
P. Xaplanteris ◽  
C. Vlachopoulos ◽  
I. Dima ◽  
D. Terentes-Printzios ◽  
N. Alexopoulos ◽  
...  

2006 ◽  
Vol 27 (24) ◽  
pp. 2962-2968 ◽  
Author(s):  
J.-M. Sinning ◽  
C. Bickel ◽  
C.-M. Messow ◽  
R. Schnabel ◽  
E. Lubos ◽  
...  

1993 ◽  
Vol 85 (5) ◽  
pp. 577-583 ◽  
Author(s):  
N. Håkan Wallén ◽  
Claes Held ◽  
Nina Rehnqvist ◽  
Paul Hjemdahl

1. The impact of oral acetylsalicylic acid treatment on the enhancing effect of adrenaline on platelet aggregation in vitro was investigated in patients with stable angina pectoris. In addition, the influence of different anticoagulants (i.e. hirudin and citrate) on platelet aggregation in vitro was compared. 2. Eighty-four patients with stable angina pectoris were studied. Sixteen patients were on acetylsalicylic acid treatment (150-250 mg daily), whereas 68 patients were free from acetylsalicylic acid. Platelet-rich-plasma was prepared from citrate- or hirudin-antkoagulated blood. The EC50 (i.e. the concentration of agonist required to produce half-maximal aggregation) for the ADP-induced extent of aggregation was determined. Thereafter the enhancing effect of adrenaline (10 and 50 nmol/l) on ADP-induced aggregation (at EC50) was investigated. 3. In the patients with angina, acetylsalicylic acid caused the expected effects on ADP-induced platelet responses. Adrenaline significantly enhanced both the extent of aggregation and the initial rate of aggregation (primary aggregation), irrespective of the anticoagulant used. In acetylsalicylic acid-treated patients (citrated platelet-rich plasma) the extent of aggregation was partly inhibited, but no significant effect on the rate of aggregation could be observed. 4. A comparative substudy of the anticoagulants in healthy subjects (n = 8) showed that both the aggregating effect of ADP per se and the enhancing effect of adrenaline on ADP-induced aggregation (at EC50) were less influenced by acetylsalicylic acid when evaluated in hirudinized platelet-rich plasma (i.e. with physiological levels of extracellular calcium) as compared with citrated platelet-rich plasma. 5. It is concluded that acetylsalicylic acid treatment slightly attenuates the proaggregatory effect of high physiological concentrations of adrenaline in vitro. The impact of acetylsalicylic acid in vitro is, however, strongly dependent on the anticoagulant used, and is significantly weaker when evaluated in a medium with normal extracellular calcium levels (i.e. hirudin) than in a medium with low levels of extracellular calcium (citrate). Thus, acetylsalicylic acid may be a weak antagonist of catecholamine-induced platelet activation in vivo.


2000 ◽  
Vol 148 (1) ◽  
pp. 179-188 ◽  
Author(s):  
Claes Held ◽  
Paul Hjemdahl ◽  
N. Håkan Wallén ◽  
Inge Björkander ◽  
Lennart Forslund ◽  
...  

1996 ◽  
Vol 76 (02) ◽  
pp. 166-170 ◽  
Author(s):  
Moniek P M de Maat ◽  
Alf E R Arnold ◽  
Stef van Buuren ◽  
J H Paul Wilson ◽  
Cornells Kluft

SummaryElevated plasma fibrinogen levels are associated with an increased risk for cardiac events. Ticlopidine is a drug that inhibits the ADP-induced aggregation of blood platelets and it also has been described that ticlopidine can decrease the plasma fibrinogen level in patients with vascular diseases. The mechanism of this decrease has not yet been elucidated and therefore mechanisms that are known to affect fibrinogen levels were studied, viz. the acute phase reaction, total fibrin plus fibrinogen degradation (TDP) levels and the polymorphisms of the fibrinogen β-gene.The fibrinogen lowering effect of ticlopidine was studied in 26 healthy volunteers, selected on genotype of the BclI polymorphism of the fibrinogen β-gene, and in 26 patients with stable angina pectoris in a double blind, randomized cross-over study. Functional plasma fibrinogen levels were measured with the Clauss assay. Fibrinogen antigen, C-reactive protein (CRP) and TDP levels were measured using an enzyme immuno assay (EIA).In the healthy volunteers the functional fibrinogen levels had decreased by 0.20 g/l (9%, p = 0.005 using the paired Student t-test) after 4 weeks of 250 mg bid ticlopidine administration, whereas fibrinogen antigen, CRP and TDP levels were not significantly changed. In the stable angina pectoris patients the pre-treatment fibrinogen, CRP and TDP levels were significantly higher than in the volunteer group. After four weeks 250 mg bid ticlopidine administration the functional fibrinogen levels had decreased by 0.38 g/l (11%, p < 0.005), whereas the fibrinogen antigen, CRP and TDP levels were not significantly changed. The levels of functional and antigen fibrinogen, CRP and TDP did not change significantly during the placebo period in the volunteers or the patients. Neither in the volunteers nor in the patients was the effect of ticlopidine on the fibrinogen levels associated with the fibrinogen β-gene polymorphisms.Therefore, the fibrinogen lowering effect of ticlopidine is likely to be a modulation of the functionality of the molecule and unlikely to be modulated by the acute phase reaction, TDP-levels or the fibrinogen β-gene polymorphisms.


2008 ◽  
Vol 149 (7) ◽  
pp. 291
Author(s):  
Viktor Nagy ◽  
István Czuriga

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