Abstract
Objective and design
Ghrelin has a key role in modulating energy metabolism and weight gain. The present study aimed at studying the potential role of ghrelin in the development and/or exacerbation of organ damage in a mouse model of diet-induced obesity.
Objective and design
Adult mice were fed one of two diets for 20 weeks: standard high carbohydrate (HC) or high-fat high-sugar (HFHS). Starting week 17, the animals were given regular intraperitoneal ghrelin (160 µg/kg) or saline injections Abdominal fat, serum creatinine, and glucose levels, as well as kidney, liver and heart weight and pathology were assessed.
Results
Ghrelin-injected mice showed significant organ damage, which was more exacerbated in HFHS-fed animals. While the HFHS diet was associated with significant liver damage, ghrelin administration did not reverse it. Interestingly, ghrelin administration induced moderate kidney damage and significantly affected the heart by increasing perivascular and myocardium fibrosis, steatosis as well as inflammation. Moreover, serum creatinine levels were higher in the animal group injected with ghrelin.
Conclusion
Ghrelin administration was associated with increased functional and structural organ damage, regardless of diet. The present study provides novel evidence of multi-organ physiologic alterations secondary to ghrelin administration.
Similar content being viewed by others
References
Sun Y, Wang P, Zheng H, Smith RG. Ghrelin stimulation of growth hormone release and appetite is mediated through the growth hormone secretagogue receptor. Proc Natl Acad Sci USA. 2004;101:4679–84.
Cummings DE, Purnell JQ, Frayo RS, Schmidova K, Wisse BE, Weigle DS. A preprandial rise in plasma ghrelin levels suggests a role in meal initiation in humans. Diabetes. 2001;50:1714–9.
Sato T, Ida T, Nakamura Y, Shiimura Y, Kangawa K, Kojima M. Physiological roles of ghrelin on obesity. Obes Res Clin Pract. 2014;8:e405–13.
Scerif M, Goldstone AP, Korbonits M. Ghrelin in obesity and endocrine diseases. Mol Cell Endocrinol. 2011;340:15–25.
Gomez G, Han S, Englander EW, Greeley GH Jr. Influence of a long-term high-fat diet on ghrelin secretion and ghrelin-induced food intake in rats. Regul Pept. 2012;173:60–3.
Handjieva-Darlenska T, Boyadjieva N. The effect of high-fat diet on plasma ghrelin and leptin levels in rats. J Physiol Biochem. 2009;65:157–64.
Reimer MK, Pacini G, Ahren B. Dose-dependent inhibition by ghrelin of insulin secretion in the mouse. Endocrinology. 2003;144:916–21.
Salehi A, Dornonville de la Cour C, Hakanson R, Lundquist I. Effects of ghrelin on insulin and glucagon secretion: a study of isolated pancreatic islets and intact mice. Regul Pept. 2004;118:143–50.
Kojima M, Hosoda H, Date Y, Nakazato M, Matsuo H, Kangawa K. Ghrelin is a growth-hormone-releasing acylated peptide from stomach. Nature. 1999;402:656–60.
Takaya K, Ariyasu H, Kanamoto N, Iwakura H, Yoshimoto A, Harada M, et al. Ghrelin strongly stimulates growth hormone release in humans. J Clin Endocrinol Metab. 2000;85:4908–11.
Nagaya N, Kojima M, Uematsu M, Yamagishi M, Hosoda H, Oya H, et al. Hemodynamic and hormonal effects of human ghrelin in healthy volunteers. Am J Physiol Regul Integr Comp Physiol. 2001;280:R1483–7.
Wortley KE, del Rincon JP, Murray JD, Garcia K, Iida K, Thorner MO, et al. Absence of ghrelin protects against early-onset obesity. J Clin Invest. 2005;115:3573–8.
Sun Y, Asnicar M, Saha PK, Chan L, Smith RG. Ablation of ghrelin improves the diabetic but not obese phenotype of ob/ob mice. Cell Metab. 2006;3:379–86.
Zigman JM, Nakano Y, Coppari R, Balthasar N, Marcus JN, Lee CE, et al. Mice lacking ghrelin receptors resist the development of diet-induced obesity. J Clin Invest. 2005;115:3564–72.
Tong J, Prigeon RL, Davis HW, Bidlingmaier M, Kahn SE, Cummings DE, et al. Ghrelin suppresses glucose-stimulated insulin secretion and deteriorates glucose tolerance in healthy humans. Diabetes. 2010;59:2145–51.
Kemp BA, Howell NL, Gray JT, Keller SR, Nass RM, Padia SH. Intrarenal ghrelin infusion stimulates distal nephron-dependent sodium reabsorption in normal rats. Hypertension. 2011;57:633–9.
Kemp BA, Howell NL, Padia SH. Intrarenal ghrelin receptor inhibition ameliorates angiotensin II-dependent hypertension in rats. Am J Physiol Renal Physiol. 2018;315:F1058–66.
Mosa R, Huang L, Li H, Grist M, LeRoith D, Chen C. Long-term treatment with the ghrelin receptor antagonist [d-Lys3]-GHRP-6 does not improve glucose homeostasis in nonobese diabetic MKR mice. Am J Physiol Regul Integr Comp Physiol. 2018;314:R71–83.
Zeeni N, Dagher-Hamalian C, Dimassi H, Faour WH. Cafeteria diet-fed mice is a pertinent model of obesity-induced organ damage: a potential role of inflammation. Inflamm Res. 2015;64:501–12.
Mehra MR, Uber PA, Park MH, Scott RL, Ventura HO, Harris BC, et al. Obesity and suppressed B-type natriuretic peptide levels in heart failure. J Am Coll Cardiol. 2004;43:1590–5.
Zhou YT, Grayburn P, Karim A, Shimabukuro M, Higa M, Baetens D, et al. Lipotoxic heart disease in obese rats: implications for human obesity. Proc Natl Acad Sci USA. 2000;97:1784–9.
Del Gaudio A, Boschi L, Del Gaudio GA, Mastrangelo L, Munari D. Liver damage in obese patients. Obes Surg. 2002;12:802–4.
de Jong PE, Verhave JC, Pinto-Sietsma SJ, Hillege HL, Group PS. Obesity and target organ damage: the kidney. Int J Obes Relat Metab Disord. 2006;26(4):S21–4.
Ciesla DJ, Moore EE, Johnson JL, Burch JM, Cothren CC, Sauaia A. Obesity increases risk of organ failure after severe trauma. J Am Coll Surg. 2006;203:539–45.
Li GZ, Jiang W, Zhao J, Pan CS, Cao J, Tang CS, et al. Ghrelin blunted vascular calcification in vivo and in vitro in rats. Regul Pept. 2005;129:167–76.
Xu YP, Zhu JJ, Cheng F, Jiang KW, Gu WZ, Shen Z, et al. Ghrelin ameliorates hypoxia-induced pulmonary hypertension via phospho-GSK3 beta/beta-catenin signaling in neonatal rats. J Mol Endocrinol. 2011;47:33–43.
Li G, Xia J, Jia P, Zhao J, Sun Y, Wu C, et al. Plasma levels of acylated ghrelin in children with pulmonary hypertension associated with congenital heart disease. Pediatr Cardiol. 2015;36:1423–8.
El Zein N, Abdallah MS, Daher CF, Mroueh M, Stephan J, Bahous SA, et al. Ghrelin modulates intracellular signalling pathways that are critical for podocyte survival. Cell Biochem Funct. 2019;37:245–55.
Delhanty PJ, Neggers SJ, van der Lely AJ. Mechanisms in endocrinology: Ghrelin: the differences between acyl- and des-acyl ghrelin. Eur J Endocrinol. 2012;167:601–8.
Barazzoni R, Bosutti A, Stebel M, Cattin MR, Roder E, Visintin L, et al. Ghrelin regulates mitochondrial-lipid metabolism gene expression and tissue fat distribution in liver and skeletal muscle. Am J Physiol Endocrinol Metab. 2005;288:E228–35.
Egido EM, Rodriguez-Gallardo J, Silvestre RA, Marco J. Inhibitory effect of ghrelin on insulin and pancreatic somatostatin secretion. Eur J Endocrinol. 2002;146:241–4.
Reynolds CB, Elias AN, Whisnant CS. Effects of feeding pattern on ghrelin and insulin secretion in pigs. Domest Anim Endocrinol. 2010;39:90–6.
Poher AL, Tschop MH, Muller TD. Ghrelin regulation of glucose metabolism. Peptides. 2018;100:236–42.
Yang C, Liu J, Liu K, Du B, Shi K, Ding M, et al. Ghrelin suppresses cardiac fibrosis of post-myocardial infarction heart failure rats by adjusting the activin A-follistatin imbalance. Peptides. 2018;99:27–35.
Liang QH, Jiang Y, Zhu X, Cui RR, Liu GY, Liu Y, et al. Ghrelin attenuates the osteoblastic differentiation of vascular smooth muscle cells through the ERK pathway. PLoS ONE. 2012;7:e33126.
Zhang GG, Cai HQ, Li YH, Sui YB, Zhang JS, Chang JR, et al. Ghrelin protects heart against ERS-induced injury and apoptosis by activating AMP-activated protein kinase. Peptides. 2013;48:156–65.
Kuppens RJ, Diene G, Bakker NE, Molinas C, Faye S, Nicolino M, et al. Elevated ratio of acylated to unacylated ghrelin in children and young adults with Prader-Willi syndrome. Endocrine. 2015;50:633–42.
Harvey RE, Howard VG, Lemus MB, Jois T, Andrews ZB, Sleeman MW. The ghrelin/GOAT system regulates obesity-induced inflammation in male mice. Endocrinology. 2017;158:2179–89.
Francois M, Barde S, Legrand R, Lucas N, Azhar S, El Dhaybi M, et al. High-fat diet increases ghrelin-expressing cells in stomach, contributing to obesity. Nutrition. 2016;32:709–15.
Briggs DI, Enriori PJ, Lemus MB, Cowley MA, Andrews ZB. Diet-induced obesity causes ghrelin resistance in arcuate NPY/AgRP neurons. Endocrinology. 2010;151:4745–55.
Mohamed J, Nazratun Nafizah AH, Zariyantey AH, Budin SB. Mechanisms of Diabetes-Induced Liver Damage: the role of oxidative stress and inflammation. Sultan Qaboos Univ Med J. 2016;16:e132–41.
Scheen AJ, Luyckx FH. Obesity and liver disease. Best Pract Res Clin Endocrinol Metab. 2002;16:703–16.
Gressner AM. Transdifferentiation of hepatic stellate cells (Ito cells) to myofibroblasts: a key event in hepatic fibrogenesis. Kidney Int Suppl. 1996;54:S39–45.
Acknowledgements
This work was supported by a joint Grant from the Lebanese American University and from the Lebanese National Council for Scientific Research, Grant nb: 02-01-18.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The author(s) declare that they have no competing interests.
Additional information
Responsible Editor: John Di Battista.
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Dagher-Hamalian, C., Stephan, J., Zeeni, N. et al. Ghrelin-induced multi-organ damage in mice fed obesogenic diet. Inflamm. Res. 69, 1019–1026 (2020). https://doi.org/10.1007/s00011-020-01383-5
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00011-020-01383-5