The effects of 12 weeks of aerobic exercise on plasma Ghrelin, Insulin, GH, Cortisol Hormones concentration in male rats.

Document Type : original article

Abstract

 
Abjectivs: The purpose of this study was to investigate the effects of 12 weeks of treadmill running with modrate intensities on plasma Ghrelin and Glucose, Insulin, GH, Cottisol Hormon concentrations and relationship between this variable in male rat. Methods: Towenty Wistar male rats were used and randomly divided into two groups. control (n=9) and training group (n=11). The training group were given exercise on a motor-driven treadmil! (25m٫min. 60min. and 5 days٫weeks) for 12 weeks. Rats were sacrificed 48h after last training session. Plasma samples were collected, Ghrelin were meseared by ELISA and data were analyzed by T test, significance level was accepted at P<0.05 Results: The resalts indicate that plasma Ghrelin concentration in control(86.68+25.85pg٫1) and trained (59.72±5.41pg٫1) group that significantly decreased (t=6.9,P=0.0001) .Changes in weitgh (t=0.258.p=0.8) plasma glucose z(t=1.15.p=0.262) insulin (t=1.73.p=0.1). GH(1-1.75.pand cortisol (t=1.82.p=0.084) levels were not significant. Pearson correlation between the grelin and glucose, insulin, GH and cortisol concentrations assessed were not significant (P>0.05) Conclusion: it is concluded that long term treadmill exercise was effective on plasma ghrelin that this changes so changes of Insulin.GH and cortisol hormone can be related to time and intensity of training and time of fasting and rate of decrease of weight in exercise training.Also plasma ghrelin and GH concentration can be independent.
 

Keywords


  1. منابع:
  2. Kopelman PG. (2002) .Obesity as a medical
  3. problem. Nature.404: 635–64
  4. Hillebrand JJG, de Wied D, & Adan RAH.
  5. (2002). Neuropeptides, food intake and body
  6. weight regulation: a hypothalamic focus.
  7. Peptides, 23: 2283–2306
  8. Kojima M, H. Hosoda, Y. Date, and et.al
  9. (1999).Ghrelin is a growth hormone releasing
  10. acylated peptide from stomach, Nature
  11. 656–660.
  12. Kojima M, Hosoda H, Kangawa K.and et.al
  13. (2001). Purification and distribution of
  14. ghrelin: the natural endogenous ligand for the
  15. growth hormone secretagogue receptor. Horm
  16. Res; 56 Suppl 1:93-7.
  17. Kojima M, Hosoda H, Matsuo H, Kangawa
  18. K.and et.al (2001). Ghrelin: discovery of the
  19. natural endogenous ligand for the growth
  20. hormone secretagogue receptor. Trends
  21. Endocrinol Metab, 12(3):118-22.
  22. Kojima M., Kangawa K. (2008); Structure
  23. and function of ghrelin. Results, Probl Cell
  24. Differ. 46: 89-115.
  25. Revollo JR, Korner A, Mills KF, and et al.
  26. (2002) “Insulin regulates plasma ghrelin
  27. concentration”.J Clin Endocrinol Metab; 87:
  28. -4000.
  29. Broglio F, Benso A, Castiglioni C, and et al.
  30. (2003) “The endocrine response to ghrelin as
  31. a function of gender in humans in young and
  32. elderly subjects”. J Clin Endocrinol Metab;
  33. :1537-42.
  34. Fathi R, Ghanbari-Niaki A, Rahbarizadeh F,
  35. and et.al (2009).The effect of exercise on
  36. plasma acylated ghrelin concentrations and
  37. حسین عابد نظری و همکاران
  38. gastrocnemius muscle mRNA expression in
  39. male rats. Iranian Journal of Endocrinology
  40. and Metabolism; 10:519-26.[Farsi]
  41. Dall R, Kanaley J, Hansen TK, et al.
  42. (2002).Plasma ghrelin levels during exercise
  43. in healthy subjects and in growth hormonedeficient
  44. patients. Eur J Endocrinol; 147:65–
  45.  
  46. Ghanbari-Niaki A: (2006).Ghrelin and
  47. glucoregulatory hormone responses to a single
  48. circuit resistance exercise in male college
  49. students.Clin Biochem; 39: 966–970.
  50. Kraemer RR, Durand RJ, Hollander DB, and
  51. et.al(2004).Ghrelin and other glucoregulatory
  52. hormone responses to eccentric and
  53. concentric muscle contractions. Endocrine;
  54. : 93–98.
  55. Schmidt A, Maier C, Schaller G, et al. (2004).
  56. Acute exercise has no effect on ghrelin
  57. plasma concentrations. Hormone Metabolism
  58. Research; 36:174–7
  59. Kraemer RR, Castracane VD. (2007).Exercise
  60. and humoral mediators of peripheral energy
  61. balance: ghrelin and adiponectin
  62. (minireview).Exp Biol Med (Maywood); 232:
  63. -94.
  64. Foster – Schubert KE, McTiernan A, Frayo
  65. RS, and et.al (2005).” Human plasma ghrelin
  66. levels increase during a one – year exercise
  67. program”. Journal clinical Endocrinol Metab,
  68. : 820–825.
  69. leidy HJ,Gardner JK, Frye BR,Snook and
  70. et.al(2004).Circulating ghrelin is sensitive to
  71. changes in body weight during a diet and
  72. exercise programin normal-weight young
  73. women.J Clin Endocrinol Metab;89(6):2659-
  74.  
  75. Ghanbari-Niaki A, Abednazari H, Tayebi SM,
  76. Hossaini-Kakhak A, Kraemer RR. (2009)
  77. Treadmill training enhances rat agouti-related
  78. protein in plasma and reduces ghrelin levels in
  79. plasma and soleus muscle. Metabolism; 58:
  80. -52.
  81. Ghanbari-Niaki, Abednazari H, kraemer
  82. (2010). ”Time-course alterations of plasma
  83. and soleus agouti-related peptide and
  84. relationship to ATP, glycogen, cortisol, and
  85. insulin concentrations following treadmill
  86. training programs in male rats. Horm Metab
  87. Res. 2011 Feb; 43(2):112-6.
  88. Andersson U, Treebak JT, Nielsen JN,
  89. et.al(2005).Exercise in rats does not alter
  90. hypothalamic AMP-activated protein kinase
  91. activity.Biochem Biophys Res
  92. Commun.8;329(2):719-25.
  93. Rijke C E de, J J G Hillebrand, L A W
  94. Verhagen, et.al (2005) “Hypothalamic
  95. neuropeptide expression following chronic
  96. food restriction in sedentary and wheelrunning
  97. rats”. Journal of Molecular
  98. Endocrinology.35, 381–390.
  99. De Souza MJ, Leidy HJ, O'Donnell E, Lasley
  100. B, Williams NI,(2004).Fasting ghrelin levels
  101. in physically active women: relationship with
  102. menstrual disturbances and metabolic
  103. hormones. J Clin Endocrinol Metab;
  104. (7):3536-42.
  105. Ghanbari-Niaki A, Soltani R, Shemshaki A,
  106. and Kraemer RR.( 2010).Effects of acute
  107. ethionine injection on Plasma ghrelin and
  108. Obestatin levels in trained male
  109. rats.Metabolism; 59: 982-7.
  110. Klok MD, Jakobsdottir S, Drent ML.
  111. (2007).The role of leptin and ghrelin in the
  112. regulation of food intake and body weight in
  113. humans: a review. Obes Rev; 8: 21-34.
  114. Tschop M, Smiley DL, Heiman ML.
  115. (2000).”Ghrelin induces adiposity in rodents”.
  116. Nature; 407(6806):908-13.
  117. van der Lely AJ, Tschop M, Heiman ML,
  118. Ghigo E.(2004) Biological, physiological,
  119. pathophysiological, and pharmacological
  120. aspects of ghrelin. Endocr Rev; 25:426- 57.
  121. Erdmann J, Tahbaz R, Lippl F, Wagenpfeil S,
  122. Schusdziarra V. (2007). Plasma ghrelin levels
  123. during exercise – effects of intensity and
  124. duration. Regul Pept; 143: 127-35.
  125. Mager U, Kolehmainen M, de Mello VD,
  126. Schwab and et.al (2008) Expression of ghrelin
  127. gene in peripheral blood mononuclear cells
  128. and plasma ghrelin concentrations in patients
  129. with metabolic syndrome. Eur J Endocrinol;
  130. :499–510.
  131. Morpurgo PS, Resnik M, Agosti F, and et.al
  132. (2003). Ghrelin secretion in severely obese
  133. subjects before and after a 3-week integrated
  134. body mass reduction program. J Endocrinol
  135. Invest; 26: 723-7.
  136. Yildiz BO, Suchard MA, Wong ML, and et.al
  137. (2004.)Alterations in the dynamics of
  138. circulating ghrelin, adiponectin, and leptin in
  139. human obesity. Proc Natl Acad Sci U S A;
  140. : 10434-9.
  141. Mirzaei B, Irandoust K, Rahmani-Nia F,
  142. Mohebbi H,Hassan-Nia S.(2009)Un acylated
  143. ghrelin levels increase after aerobic exercise
  144. program in obese women. Brazilian Jouranal
  145. of Biomotricity; 3: 11-20.
  146. Date Y, Murakami N, Kojimi M, and et al.
  147. (2000) “Central effects of a novel acylated
  148. peptide, ghrelin, on growth hormone release
  149. in rate”. Biochem Biophys Res Commun 275.
  150. . Date Y, Nakazato M, Hashguchi S, et al.
  151. (2002). “Ghrelin is present in pancreatic
  152. alpha-cells of human and rat stimulates
  153. insulin secretion”. Diabetes;51:124–9
  154. Lazarczyk MA, Lazarczyk M, & Grzela T.
  155. (2003).Ghrelin: a recently discovered gut –
  156. brain peptide (Review). Int. J. Molecular
  157. Medicine, 12: 279 – 787.
  158. Hosoda H, Kojima M, Kangawa K. (2002).
  159. Ghrelin and the regulation of food intake and
  160. energy balance. Mol Interv; 2(8):494-503.
  161. Arvat E, Maccario M, Di Vito L, Broglio F,
  162. and et.al (2001). Endocrine activities of
  163. ghrelin, a natural growth hormone
  164. secretagogue (GHS), in humans: comparison
  165. and interactions with hexarelin, a nonnatural
  166. peptidyl GHS, and GH-releasing hormone.
  167. Journal Clinical Endocrinology Metabolism
  • Receive Date: 17 May 2015
  • Revise Date: 18 June 2024
  • Accept Date: 31 December 2020
  • First Publish Date: 31 December 2020
  • Publish Date: 20 April 2012