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Celine Fernandez

Associate professor

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Magnitude of rise in proneurotensin is related to amount of triglyceride appearance in blood after standardized oral intake of both saturated and unsaturated fat

Author

  • Ayesha Fawad
  • Celine Fernandez
  • Andreas Bergmann
  • Joachim Struck
  • Peter M. Nilsson
  • Louise Bennet
  • Marju Orho-Melander
  • Olle Melander

Summary, in English

BACKGROUND: In rodents, neurotensin contributes to high fat diet induced obesity by facilitation of intestinal fat absorption. The effect of oral lipid load on plasma proneurotensin and relationship with plasma triglycerides in humans is unknown. AIM: To investigate the acute effects of an oral lipid load on proneurotensin and plasma triglycerides and their interrelationships in healthy individuals. SETTING/ METHODS: Twenty-two healthy subjects were given 150 mL of full milk cream (54 g fat) and 59 mL of pure olive oil (54 g fat) in the fasted state at two different occasions separated by at least 1 week in random order. Venous blood was drawn at fasted before 0 h (h) and at 1 h, 2 h and 4 h after ingestion. Post-ingested values of proneurotensin and plasma triglycerides were compared with fasting levels and post ingestion Area Under the Curve (AUC) of proneurotensin was correlated with that of plasma triglycerides. RESULTS: An immediate rise of plasma proneurotensin and plasma triglycerides were observed after ingestion of cream with maximum increase at 2 h for proneurotensin [mean (95% confidence interval)] of 22 (12-31) pmol/L (P < 0.001) and at 3 h for triglycerides of 0.60 (0.43-0.78) mmol/L (P < 0.001). Similarly, plasma proneurotensin and plasma triglycerides increased after ingestion of olive oil with maximum increase of proneurotensin at 3 h of 62 (46-78) pmol/L (P < 0.001) and plasma triglycerides at 3 h of 0.32 (0.18-0.45) mmol/L (P < 0.001). The post lipid load AUC for proneurotensin correlated significantly with the AUC for plasma triglycerides both after cream (r = 0.49, P = 0.021) and olive oil (r = 0.55, P = 0.008), respectively. CONCLUSION: Proneurotensin increases after an oral lipid load of both cream and olive oil and the rise of post-ingestion plasma triglycerides is significantly related to the rise of post-ingestion proneurotensin.

Department/s

  • Cardiovascular Research - Hypertension
  • EXODIAB: Excellence of Diabetes Research in Sweden
  • Internal Medicine - Epidemiology
  • EpiHealth: Epidemiology for Health
  • Family Medicine and Community Medicine
  • Diabetes - Cardiovascular Disease

Publishing year

2020

Language

English

Publication/Series

Lipids in Health and Disease

Volume

19

Issue

1

Document type

Journal article

Publisher

BioMed Central (BMC)

Topic

  • Endocrinology and Diabetes

Keywords

  • Fat absorption
  • Gut hormones
  • Obesity
  • Proneurotensin
  • Triglycerides
  • Type 2 diabetes

Status

Published

Project

  • AIR Lund - Artificially Intelligent use of Registers

Research group

  • Cardiovascular Research - Hypertension
  • Internal Medicine - Epidemiology
  • Family Medicine and Community Medicine
  • Diabetes - Cardiovascular Disease

ISBN/ISSN/Other

  • ISSN: 1476-511X