TY - JOUR
T1 - The impact of dopamine on insulin secretion in healthy controls
AU - Underland, Lisa J.
AU - Mark, Erika R.
AU - Katikaneni, Ranjitha
AU - Heptulla, Rubina
N1 - Publisher Copyright:
© 2018 Indian Journal of Critical Care Medicine | Published by Wolters Kluwer-Medknow.
PY - 2018/4
Y1 - 2018/4
N2 - Objective: Dopamine is very commonly used in the critical care setting and impacts glucose homeostasis. In some studies, it is noted to increase insulin resistance or decrease insulin secretion. The role of insulin secretion in response to dopamine is incompletely understood. Methods: Eight individuals underwent a hyperglycemic clamp with a dopamine infusion, and eight controls underwent hyperglycemic clamp alone. Insulin, C-peptide, glucagon, cortisol, and norepinephrine (NE) concentrations were measured at various time points. An index of insulin sensitivity (M/I) was calculated. Statistical comparison between the control and treatment arm was done using repeated measures ANOVA. The data is expressed as mean ± standard deviation. Paired t-test was used to compare pre- A nd post-dopamine infusion time points in the study individuals only. Data was considered to be statistically significant at P < 0.05. Results: On assessing the treatment group before and during dopamine infusion, insulin and C-peptide concentrations were higher at the time of the infusion (P = 0.02 and P = 0.003, respectively). The index of insulin sensitivity was not statistically different. There was a significant decrease in insulin (P = 0.002), C-peptide (P = 0.005), and NE (P < 0.0001) concentrations in the treatment group, compared to the controls. Glucagon concentration was higher in the treatment group (P = 0.02). Conclusion: In this study, dopamine infusion did not adversely impact insulin secretion.
AB - Objective: Dopamine is very commonly used in the critical care setting and impacts glucose homeostasis. In some studies, it is noted to increase insulin resistance or decrease insulin secretion. The role of insulin secretion in response to dopamine is incompletely understood. Methods: Eight individuals underwent a hyperglycemic clamp with a dopamine infusion, and eight controls underwent hyperglycemic clamp alone. Insulin, C-peptide, glucagon, cortisol, and norepinephrine (NE) concentrations were measured at various time points. An index of insulin sensitivity (M/I) was calculated. Statistical comparison between the control and treatment arm was done using repeated measures ANOVA. The data is expressed as mean ± standard deviation. Paired t-test was used to compare pre- A nd post-dopamine infusion time points in the study individuals only. Data was considered to be statistically significant at P < 0.05. Results: On assessing the treatment group before and during dopamine infusion, insulin and C-peptide concentrations were higher at the time of the infusion (P = 0.02 and P = 0.003, respectively). The index of insulin sensitivity was not statistically different. There was a significant decrease in insulin (P = 0.002), C-peptide (P = 0.005), and NE (P < 0.0001) concentrations in the treatment group, compared to the controls. Glucagon concentration was higher in the treatment group (P = 0.02). Conclusion: In this study, dopamine infusion did not adversely impact insulin secretion.
KW - Dopamine
KW - glucose
KW - hyperglycemia
KW - insulin sensitivity
KW - pressors
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U2 - 10.4103/ijccm.IJCCM_175_17
DO - 10.4103/ijccm.IJCCM_175_17
M3 - Article
AN - SCOPUS:85046090675
SN - 0972-5229
VL - 22
SP - 209
EP - 213
JO - Indian Journal of Critical Care Medicine
JF - Indian Journal of Critical Care Medicine
IS - 4
ER -