buy hypertropin

Calendar

January 2011
M T W T F S S
 12
3456789
10111213141516
17181920212223
24252627282930
31  

Pages

Archives

Blogroll






Nardi AE, Lopes FL, Freire RC, Veras AB, Nascimento I, Valença AM, de-Melo-Neto VL, Soares-Filho GL, King AL, Araújo DM, Mezzasalma MA, Rassi A, Zin WA.


Laboratory of Panic and Respiration, Institute of Psychiatry, Federal University of Rio de Janeiro, R. Visconde de Pirajá, 407/702, Rio de Janeiro, RJ-22410-003 Brazil; Laboratory of Respiratory Physiology, Carlos Chagas Filho Biophysics Institute, Federal University of Rio de Janeiro, Brazil


Studies have demonstrated the vulnerability of anxiety disorder patients to challenge tests. Our aim was to observe if panic disorder (PD) patients and generalized social anxiety disorder (GSAD) and performance social anxiety disorder (PSAD) patients respond in a similar way to the induction of anxiety symptoms and panic attacks by an oral caffeine challenge test.


We compared 28 PD patients, 25 GSAD patients, 19 PSAD, and 26 control subjects after a 480-mg caffeine test. The patients had not received psychotropic drugs for at least a 4-week period. In a randomized double-blind experiment performed in two occasions 7 days apart, 480 mg of caffeine and a caffeine-free solution were administered and anxiety scales were administered before and after each test.


A panic attack was induced in 17 (60.7%) PD patients, 4 (16.0%) GSAD patients, and 10 (52.6%) PSAD patients, during the caffeine test. None of the control subjects had a panic attack after the caffeine intake. Neither patients nor any control subject had a panic attack after drinking the caffeine-free solution.


Our data suggest that there is an association between PD and PSAD hyperreactivity to an oral caffeine challenge test. The PD and PSAD patients had a higher number of induced panic attacks, some specific anxiety symptoms, and a more severe anxiety response than GSAD patients and normal volunteers.


Source… © 2008 Elsevier Ltd. All rights reserved.



Comment:
480mg caffeine is the amount found in 4-6 cups of brewed coffee, 7 cups of instant coffee/cans of Red Bull®, or 14 cans of Coke®.



Leave a Reply

*