Functional magnetic resonance imaging characterization of CCK-4-induced panic attack and subsequent anticipatory anxiety

T Schunck, G Erb, A Mathis, C Gilles, IJ Namer, Y Hode… - Neuroimage, 2006 - Elsevier
The main objective of this work was to study the functional markers of the clinical response
to cholecystokinin tetrapeptide (CCK-4). Twelve healthy male subjects were challenged with …

Functional neuroanatomy of CCK‐4‐induced panic attacks in healthy volunteers

D Eser, G Leicht, J Lutz, S Wenninger… - Human brain …, 2009 - Wiley Online Library
Experimental panic induction with cholecystokinin tetrapeptide (CCK‐4) is considered as a
suitable model to investigate the pathophysiology of panic attacks. While only a few studies …

Neuroanatomic correlates of CCK-4-induced panic attacks in healthy humans: a comparison of two time points

M Javanmard, J Shlik, SH Kennedy, FJ Vaccarino… - Biological …, 1999 - Elsevier
Background: Several functional imaging studies have demonstrated increases of brain
activity in the temporofrontal, cingulate, and claustrum regions during a pharmacologically …

Acute shift in glutamate concentrations following experimentally induced panic with cholecystokinin tetrapeptide—a 3T-MRS study in healthy subjects

P Zwanzger, M Zavorotnyy, E Gencheva… - …, 2013 - nature.com
According to preclinical studies, glutamate has been implicated in the pathogenesis of
anxiety. In order to elucidate the role of glutamate in anxiety and panic in humans, brain …

CCK-4: Psychophysiological conditioning elicits features of spontaneous panic attacks

K Hinkelmann, A Yassouridis, R Mass, H Tenge… - Journal of psychiatric …, 2010 - Elsevier
INTRODUCTION: Cholecystokinin-tetrapeptide (CCK-4) is an established model to generate
subjective panic anxiety. CCK-4 injection also results in consistent and dose-dependent rise …

Evaluation of the CCK-4 model as a challenge paradigm in a population of healthy volunteers within a proof-of-concept study

D Eser, C Schüle, T Baghai, A Floesser… - …, 2007 - Springer
Rationale Experimental panic induction with cholecystokinin-tetrapeptide (CCK-4) has been
established as a model to study the pathophysiology of panic disorder and might serve as a …

The panic-inducing properties of the cholecystokinin tetrapeptide CCK4 in patients with panic disorder

HJGM van Megen, HGM Westenberg… - European …, 1996 - Elsevier
We studied the effect of the cholecystokinin tetrapeptide (CCK4), a potent CCKB antagonist,
in patients with panic disorder. Two different dosages (25 and 50 μg) of CCK4 and saline …

Effects of alprazolam on cholecystokinin-tetrapeptide-induced panic and hypothalamic–pituitary–adrenal-axis activity: a placebo-controlled study

P Zwanzger, D Eser, S Aicher, C Schüle… - …, 2003 - nature.com
Abstract Cholecystokinin-tetrapeptide (CCK-4) induces panic attacks both in patients with
panic disorder (PD) and healthy volunteers. It has been shown that panic elicited by CCK-4 …

Panic induction with cholecystokinin-tetrapeptide (CCK-4) increases plasma concentrations of the neuroactive steroid 3α, 5α tetrahydrodeoxycorticosterone (3α, 5α …

D Eser, F Di Michele, P Zwanzger, A Pasini… - …, 2005 - nature.com
Abstract 3α-reduced neuroactive steroids such as 3α, 5α-tetrahydroprogesterone (3α, 5α-
THP) and 3α, 5α-tetrahydrodeoxycorticosterone (3α, 5α-THDOC) are potent positive …

Behavioral and endocrine response to cholecystokinin tetrapeptide in patients with posttraumatic stress disorder

M Kellner, K Wiedemann, A Yassouridis… - Biological …, 2000 - Elsevier
Background: Given the relationship between posttraumatic stress disorder (PTSD) and
panic, it was of interest to examine whether panic provoking agents affect PTSD symptoms …