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FIGURE 1 Study flowchart
FIGURE 1 Study flowchart. The study utilized a randomized, placebo-controlled, 2 × 2 crossover design. Visits were ≥1 ... FIGURE 1 Study flowchart. The study utilized a randomized, placebo-controlled, 2 × 2 crossover design. Visits were ≥1 wk apart to ensure complete THC clearance. IG, intragastric; random, random assignment; THC, Δ9-tetrahydrocannabinol; v, visit. Unless provided in the caption above, the following copyright applies to the content of this slide: Copyright © American Society for Nutrition 2019.This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model ( Am J Clin Nutr, Volume 109, Issue 4, 04 April 2019, Pages 1051–1063, The content of this slide may be subject to copyright: please see the slide notes for details.
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FIGURE 2 Outline of 1 test session
FIGURE 2 Outline of 1 test session. In each test session, participants were presented with 20 consecutive blocks of ... FIGURE 2 Outline of 1 test session. In each test session, participants were presented with 20 consecutive blocks of high-calorie, low-calorie, and neutral images starting 60 min after oral THC or placebo administration, in counterbalanced, pseudo-randomized order. Fifteen minutes after the food image paradigm, the effect on food intake was tested using either an ad libitum oral intake or intragastric infusion of chocolate milkshake at a constant rate until comfortable satiation. At set time points, ratings of appetite-related sensations were collected using VASs, as were plasma samples for metabolic hormone measurements. THC, Δ9-tetrahydrocannabinol; VAS, visual analog scale. Unless provided in the caption above, the following copyright applies to the content of this slide: Copyright © American Society for Nutrition 2019.This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model ( Am J Clin Nutr, Volume 109, Issue 4, 04 April 2019, Pages 1051–1063, The content of this slide may be subject to copyright: please see the slide notes for details.
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FIGURE 3 Effect of THC compared with placebo on liking and wanting ratings of high- and low-calorie food images. (A) ... FIGURE 3 Effect of THC compared with placebo on liking and wanting ratings of high- and low-calorie food images. (A) Liking (THC: 79.0; IQR: 72.0, 89.0; placebo: 68.0; IQR: 56.0, 81.0) and (B) wanting (THC: 78.9; IQR: 67.8, 90.0; placebo: 73.6; IQR: 61.2, 86.1) ratings of high-calorie food images. (C) Liking (THC: 76.5; IQR: 67.5, 87.0; placebo: 69.0; IQR: 58.0, 79.5) and (D) wanting (THC: 65.0; IQR: 50.7, 79.3; placebo: 64.0; IQR: 51.2, 76.9) ratings of low-calorie food images. Data were analyzed using generalized linear mixed models with a cumulative logit link function. β estimates with 95% CIs are plotted per time point (estimate is significant if the CI does not include zero). THC: n = 17, placebo: n = 17. *,**Significance of the main effect of drug over all time points: *P < 0.05, **P < 0.01. THC, Δ9-tetrahydrocannabinol. Unless provided in the caption above, the following copyright applies to the content of this slide: Copyright © American Society for Nutrition 2019.This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model ( Am J Clin Nutr, Volume 109, Issue 4, 04 April 2019, Pages 1051–1063, The content of this slide may be subject to copyright: please see the slide notes for details.
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FIGURE 4 Effect of THC compared with placebo on milkshake consumption
FIGURE 4 Effect of THC compared with placebo on milkshake consumption. (A) Ad libitum milkshake consumption during the ... FIGURE 4 Effect of THC compared with placebo on milkshake consumption. (A) Ad libitum milkshake consumption during the oral intake sessions (THC: ± 46.46 g, n = 17; placebo: ± 37.54 g, n = 17). (B) Ad libitum milkshake consumption during the intragastric infusion sessions (THC: ± 1.13, n = 13; placebo: ± 1.13, n = 12). Data were analyzed using linear mixed models. ***P < THC, Δ9-tetrahydrocannabinol. Unless provided in the caption above, the following copyright applies to the content of this slide: Copyright © American Society for Nutrition 2019.This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model ( Am J Clin Nutr, Volume 109, Issue 4, 04 April 2019, Pages 1051–1063, The content of this slide may be subject to copyright: please see the slide notes for details.
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FIGURE 5 Effect of THC compared with placebo on changes in appetite-related sensations. (A) Prospective food ... FIGURE 5 Effect of THC compared with placebo on changes in appetite-related sensations. (A) Prospective food consumption ratings (THC: 18.10; IQR: 3.50, 32.71; placebo: 9.65; IQR: −1.98, 21.29). (B) Nausea ratings (THC: 4.44; IQR: −3.70, 12.59; placebo: 2.86; IQR: −3.63, 9.35). Data were analyzed using generalized linear mixed models with a cumulative logit link function. β estimates with 95% CIs are plotted per time point (estimate is significant if the CI does not include zero). THC: n = 17, placebo: n = 17. ***Significance of the main effect of drug over all time points: ***P < For illustrative purposes, only those appetite-related sensations with significant effects of interest are displayed. THC, Δ9-tetrahydrocannabinol. Unless provided in the caption above, the following copyright applies to the content of this slide: Copyright © American Society for Nutrition 2019.This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model ( Am J Clin Nutr, Volume 109, Issue 4, 04 April 2019, Pages 1051–1063, The content of this slide may be subject to copyright: please see the slide notes for details.
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FIGURE 6 Effect of THC compared with placebo on changes in subjective changes in perception. (A) Feeling high (THC: ... FIGURE 6 Effect of THC compared with placebo on changes in subjective changes in perception. (A) Feeling high (THC: 9.29; IQR: −4.82, 23.40; placebo: −0.91; IQR: −10.53, 8.54). (B) Anxiety (THC: −2.61; IQR: −8.50, 3.23; placebo: 0.00; IQR: −3.23, 3.23). (C) Dizziness (THC: 7.65; IQR: −7.65, 22.96; placebo: 0.52; IQR: −5.23, 6.28). (D) Sadness (THC: −1.82; IQR: −5.83, 2.20; placebo: 0.77; IQR: −3.47, 5.02). (E) Headache (THC: 4.16; IQR: −2.80, 11.12; placebo: 3.51; 95% CI: −4.89, 11.90). (F) Dry mouth (THC: 5.42; IQR: −11.30, 22.10; placebo: −0.67; IQR: −14.12, 12.78). (G) Reality (THC: 4.53; IQR: −4.53, 13.65; placebo: −2.45; IQR: −8.95, 4.04). (H) Confusion (THC: 3.60; 95% CI: −7.32, 14.53; placebo: 1.65; IQR: −2.16, 5.45). (I) Sleepiness (THC: 10.12; IQR: −3.87, 24.11; placebo: 3.24; IQR: −8.14, 14.61). Data were analyzed using generalized linear mixed models with a cumulative logit link function. β estimates with 95% CIs are plotted per time point (estimate is significant if the CI does not include zero). THC: n = 17, placebo: n = 17. Asterisks on curly brackets indicate significance of the main effect of drug over all time points; asterisks on separate time points indicate significant post hoc tests (assessing the difference between THC and placebo): *P < 0.05, **P < 0.01, ***P < For illustrative purposes, only those sensations with significant effects of interest are displayed. THC, Δ9-tetrahydrocannabinol. Unless provided in the caption above, the following copyright applies to the content of this slide: Copyright © American Society for Nutrition 2019.This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model ( Am J Clin Nutr, Volume 109, Issue 4, 04 April 2019, Pages 1051–1063, The content of this slide may be subject to copyright: please see the slide notes for details.
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FIGURE 6 Effect of THC compared with placebo on changes in subjective changes in perception. (A) Feeling high (THC: ... FIGURE 6 Effect of THC compared with placebo on changes in subjective changes in perception. (A) Feeling high (THC: 9.29; IQR: −4.82, 23.40; placebo: −0.91; IQR: −10.53, 8.54). (B) Anxiety (THC: −2.61; IQR: −8.50, 3.23; placebo: 0.00; IQR: −3.23, 3.23). (C) Dizziness (THC: 7.65; IQR: −7.65, 22.96; placebo: 0.52; IQR: −5.23, 6.28). (D) Sadness (THC: −1.82; IQR: −5.83, 2.20; placebo: 0.77; IQR: −3.47, 5.02). (E) Headache (THC: 4.16; IQR: −2.80, 11.12; placebo: 3.51; 95% CI: −4.89, 11.90). (F) Dry mouth (THC: 5.42; IQR: −11.30, 22.10; placebo: −0.67; IQR: −14.12, 12.78). (G) Reality (THC: 4.53; IQR: −4.53, 13.65; placebo: −2.45; IQR: −8.95, 4.04). (H) Confusion (THC: 3.60; 95% CI: −7.32, 14.53; placebo: 1.65; IQR: −2.16, 5.45). (I) Sleepiness (THC: 10.12; IQR: −3.87, 24.11; placebo: 3.24; IQR: −8.14, 14.61). Data were analyzed using generalized linear mixed models with a cumulative logit link function. β estimates with 95% CIs are plotted per time point (estimate is significant if the CI does not include zero). THC: n = 17, placebo: n = 17. Asterisks on curly brackets indicate significance of the main effect of drug over all time points; asterisks on separate time points indicate significant post hoc tests (assessing the difference between THC and placebo): *P < 0.05, **P < 0.01, ***P < For illustrative purposes, only those sensations with significant effects of interest are displayed. THC, Δ9-tetrahydrocannabinol. Unless provided in the caption above, the following copyright applies to the content of this slide: Copyright © American Society for Nutrition 2019.This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model ( Am J Clin Nutr, Volume 109, Issue 4, 04 April 2019, Pages 1051–1063, The content of this slide may be subject to copyright: please see the slide notes for details.
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FIGURE 7 Effect of THC compared with placebo on changes in metabolic hormone concentrations before food intake. (A) Δ ... FIGURE 7 Effect of THC compared with placebo on changes in metabolic hormone concentrations before food intake. (A) Δ Octanoylated ghrelin (THC: ng/mL; IQR: 15.37, ng/mL; placebo: ng/mL; IQR: 17.03, ng/mL). (B) Δ motilin (THC: ng/mL; IQR: 75.56, ng/mL; placebo: ng/mL; IQR: 65.80, ng/mL). Data were analyzed using generalized linear mixed models with a cumulative logit link function. β estimates with 95% CIs are plotted per time point (estimate is significant if the CI does not include zero). THC: n = 17, placebo: n = 17. *,**Significance of the main effect of drug over all time points: *P < 0.05, **P < 0.01. For illustrative purposes, only those sensations with significant effects of interest are displayed. THC, Δ9-tetrahydrocannabinol. Unless provided in the caption above, the following copyright applies to the content of this slide: Copyright © American Society for Nutrition 2019.This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model ( Am J Clin Nutr, Volume 109, Issue 4, 04 April 2019, Pages 1051–1063, The content of this slide may be subject to copyright: please see the slide notes for details.
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FIGURE 8 Effect of THC compared with placebo on changes in metabolic hormones after milkshake intake. (A) GLP-1 ... FIGURE 8 Effect of THC compared with placebo on changes in metabolic hormones after milkshake intake. (A) GLP-1 concentrations after ad libitum oral intake (THC: pg/mL; IQR: 0.51, pg/mL, n = 17; placebo: pg/mL; IQR: 0.73, pg/mL, n = 17). (B) GLP-1 concentrations after ad libitum intragastric infusion (THC: pg/mL; IQR: −0.22, pg/mL, n = 13; placebo: pg/mL; IQR: −3.64, pg/mL, n = 12). Data were analyzed using generalized linear mixed models with a cumulative logit link function, controlling for ingested milkshake volume. β estimates with 95% CIs are plotted per time point (estimate is significant if the CI does not include zero). *,**Significance of the main effect of drug over all time points: *P < 0.05, **P < 0.01. For illustrative purposes, only those hormones with significant effects of interest are displayed. GLP-1, glucagon-like peptide 1; THC, Δ9-tetrahydrocannabinol. Unless provided in the caption above, the following copyright applies to the content of this slide: Copyright © American Society for Nutrition 2019.This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model ( Am J Clin Nutr, Volume 109, Issue 4, 04 April 2019, Pages 1051–1063, The content of this slide may be subject to copyright: please see the slide notes for details.
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