The effects of melatonin administration in determined times of day on the kidney in rats with high-calorie diet-induced obesity
Investigation of target organs vulnerable to obesity. Function of compensation of a metabolism at excess of fat in an organism. Morphological characteristics of glomeruli, tubules of the kidneys. Introduction of melatonin against glomerular degeneration.
Рубрика | Медицина |
Вид | статья |
Язык | английский |
Дата добавления | 20.09.2020 |
Размер файла | 3,1 M |
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Other studies also noted the beneficial effects of melatonin therapy on the kidney morpho-functional state of in animals with obesity and other metabolic diseases. In various animal models associated with experimental pyelonephritis, renal insufficiency, hypertension, diabetes and various variants of nephrotoxicity, melatonin reduces oxidative stress, suppresses chronic inflammation and limit apoptosis [34-36].
Melatonin had also effect on the general body weight. During obesity development relative visceral fat weight is the most sensitive criterion for assessing obesity in animals [37].
Relative visceral fat weight (Fig. 4) in HCD increased by 65 % compare to control. HCD ZT11 did not differ from control, but show significance to HCD: by 38,5 %. Melatonin administration in group M ZT11 did not influence on relative visceral fat weight.
Fig. 4 The morphometric analysis data of the rats' relative visceral fat weight Notes: * -a significant difference between the control and experimental groups, p < 0.05; # -a significant difference between the HCD and xperimental groups, p < 0.05
In the same study melatonin also demonstrate attenuation of pathology changes during obesity: in rabbits with HCD induced obesity melatonin administration (subcutaneously in a dose of 1 mg/kg daily 2-3 h before lights- off for 4 weeks) provide disappearance of interstitial foam cells with multiple tiny intracytoplasmic fat droplets that displace in the renal tubules [38]. In alloxan-treated diabetic rats after melatonin (200 |jg/ animal/day by gavage for 8 weeks in the morning between 9 AM and 11 AM) intervention ameliorated degenerative changes in Bowman's capsule with marked expansion in Bowman's space and necrosed tubular wall [39]. Amelioration of streptozotocin-induced diabetic nephropathy in rats by melatonin (dose of 10 mg/kg/day for 30 day by intraperitoneal injection) that manifestation in tubules was markedly reduced of TGFЯ-1, but also explored mild epithelial desquamation in tubules and hydropic degeneration in some tubular cells [40]. For the choose a uni effective protocol of melatonin administration further study are needed in the chronotherapy key [41].
Conclusions
Thus, it has been established that obesity induced high-calorie diet leads to significant changes in the morphological structure of the kidneys. It has been shown that daily administration of melatonin in a dose of 30 mg/kg for 1 hour before light-off to obese rats leads to improvement of the kidneys morpho-functional state. Namely, the reduction of the pathological changes manifestation in the tubules (the disappearance of intracellular lipid droplets and protein aggregates in the lumen of the tubule) and in the glomeruli (reduction of mesangial site with extraglomerular cells and capsule space) of the kidneys compared with obese animals. In this case, the cross-sectional area of the kidney glomeruli grows, but does not reach the level of control values. While the number of renal glomeruli returns to the level of control groups.
Reference
1. The official data of the WHO Bulletin published in May 2017.
2. Chen H. M. Evaluation of metabolic risk marker in obesity-related glomerulopathy / H. M. Chen, Y. Chen, Y. D. Zhang [et al.] // Journal of Renal Nutrition. - 2011. - Vol. 21, № 4. - Р. 309-315.
3. Jeffrey L. Obesity-Related Hypertension and Other Renal issues / L. Jeffrey, M. Martin // J. Lancaster General Hospital. - 2010. - Vol. 5, № 1. - Р. 14-15.
4. Redon J. The kidney in obesity / J. Redon, E. Lurbe // Current hypertension reports. - 2015. - Vol. 17, № 6. - Р. 43.
5. Garofalo C. A systematic review and meta-analysis suggests obesity predicts onset of chronic kidney disease in the general population / C. Garofalo, S. Borrelli, R. Minutolo [et al.] // Kidney international. - 2017. - Vol. 91, № 5. - Р. 1224-1235.
6. She M. Melatonin receptors in diabetes: a potential new therapeutical target? / M. She, M. Laudon, W. Yin // European journal of pharmacology. - 2014. - Vol. 744. - Р. 220-223.
7. Tokonami N. Local renal circadian clocks control fluid-electrolyte homeostasis and BP / N. Tokonami, D. Mordasini, S. Pradervand [et al.] // Journal of the American Society of Nephrology. - 2014. - Vol. 25, № 7. - Р.1430-1439.
8. Stacchiotti A. Melatonin drives beneficial Sirtuin 1 expression in leptin-deficient mice liver through MT1 receptor / A. Stacchiotti, L. Nardo, Rizzoni [et al.] // Italian Journal of Anatomy and Embryology. - 2015. - Vol. 120, № 1. - Р. 70.
9. Khoshvakhti H. Effects of melatonin on diclofenac sodium treated rat kidney: a stereological and histopathological study / H. Khoshvakhti, K. K. Yurt, B. Z. Altunkaynak [et al.] // Renal failure. - 2015. - Vol. 37, № 8. - Р. 1379-1383.
10. Baltatu O. C. Melatonin, mitochondria and hypertension / O. C. Baltatu, F. G. Amaral, L. A. Campos [et al.] // Cellular and molecular life sciences. - 2017. - Vol. 74, № 21. - Р. 3955-3964.
11. Selfridge J. M. Chronotherapy: intuitive, sound, founded...but not broadly applied / J. M. Selfridge, T. Gotoh, S. Schiffhauer [et al.] // Drugs. - 2016. - Vol. 76, № 16. - P. 1507-1521.
12. Mьnch M., Kramer A. Timing matters: new tools for personalized chronomedicine and circadian health / M. Mьnch, A. Kramer // Acta Physiologica. - 2019. - P. e13300.
13. Sulli G. Training the circadian clock, clocking the drugs, and drugging the clock to prevent, manage, and treat chronic diseases / G. Sulli, N. Manoogian, P. R. Taub [et al.] // Trends in pharmacological sciences. -2018. doi.org/10.1016/j.tips.2018.07.003
14. Halenova T. et al. Effect of C60 fullerene nanoparticles on the diet- induced obesity in rats / T. Halenova, N. Raksha, T. Vovk [et al.] // International journal of obesity (2005). - 2018. - Vol. 42, № 12. - Р.1987-1998.
15. Eknoyan G. Obesity and chronic kidney disease / G. Eknoyan // Nefrologia (English Edition). - 2011. - Vol. 31, № 4. - Р. 397-403.
16. Ahn S. Y. Weight loss has an additive effect on the proteinuria reduction of angiotensin II receptor blockers in hypertensive patients with chronic kidney disease / S. Y. Ahn, D. K. Kim, S. S. Han [et al.] // Kidney research and clinical practice. - 2018. - Vol. 37, № 1. - Р. 49.
17. Khamaisi M. Effect of mild hypoinsulinemia on renal hypertrophy: growth hormone/insulinlike growth factor 1 system in mild streptozotocin diabetes / M. Khamaisi, A. Flyvbjerg, Z. Haramati [et al.] // Int J Exp Diab Res. - 2002. - Vol. 3, № 4. - P. 257-264.
18. Sarafidis P. A. Insulin resistance, hyperinsulinemia, and renal injury: mechanisms and implications / P. A. Sarafidis, L. M. Ruilope // Amer. J. Nephrol. - 2006. - Vol. 26, № 3. - P. 232-244.
19. Higgins S. P. TGF-Я1/p53 signaling in renal fibrogenesis / S. P. Higgins, Y. Tang, C. E. Higgins [et al.] // Cellular signalling. - 2018. - Vol. 43. - Р. 1-10.
20. Ma S. Perirenal fat promotes renal arterial endothelial dysfunction in obese swine through tumor necrosis factor-a / S. Ma, X. Y. Zhu, A. Eirin [et al.] // The Journal of urology. - 2016. - Vol. 195, № 4. Part 1. - Р. 1152-1159.
21. Huang J. Genetic targeting of arginase-ii in mouse prevents renal oxidative stress and inflammation in diet-induced obesity / J. Huang, A. Rajapakse, Y. Xiong [et al.] // Frontiers in physiology. - 2016. - Vol. 7. -Р. 560.
22. Wang C. Thromboxane prostanoid receptors enhance contractions, endothelin-1, and oxidative stress in microvessels from mice with chronic kidney disease / C. Wang, Z. Luo, D. Kohan [et al.] // Hypertension. - 2015. - Vol. 65, № 5. - Р. 1055-1063.
23. Zanatta C. M. Endothelin-1 gene polymorphisms and diabetic kidney disease in patients with type 2 diabetes mellitus / C. M. Zanatta, Crispim, D. A. Sortica [et al.] // Diabetology & metabolic syndrome. - 2015. -Vol. 7,№. 1. -Р. 103.
24. Abitbol C. L. Obesity and preterm birth: additive risks in the progression of kidney disease in children / C. L. Abitbol, J. Chandar, M. M. Rodriguez [et al.] // Pediatric Nephrology. - 2009. - Vol. 24 ,№. 7. - РС. 1363.
25. Briffa J. F. Adipokines as a link between obesity and chronic kidney disease / J. F. Briffa, A. J. McAinch, P. Poronnik [et al.] // American Journal of Physiology-Renal Physiology. - 2013. - Vol. 305, № 12. - Р. 1629-1636.
26. Young C. N. The brain subfornical organ mediates leptin-induced increases in renal sympathetic activity but not its metabolic effects / C. N. Young, D. A. Morgan, S. D. Butler [et al.] // Hypertension. - 2013. - Vol. 61, № 3. - Р. 737-744
27. Felizardo R. J. F. Obesity in kidney disease: a heavyweight opponent / R. J. F. Felizardo, M. B. da Silva, C. F. Aguiar [et al.] // World journal of nephrology. - 2014. - Vol. 3, № 3. - Р. 50.
28. Declиves A. E. Regulation of lipid accumulation by AMK-activated kinase in high fat diet-induced kidney injury / A. E. Declиves, Z. Zolkipli, J. Satriano [et al.] // Kidney international. - 2014. - Vol. 85, № 3. - Р. 611-623.
29. Naumnik B. Renal consequences of obesity / B. Naumnik, M. Mysliwiec // Medical Science Monitor. - 2010. - Vol. 16, № 8. - Р. 163-170.
30. Nasrallah M. P. Overview of the physiology and pathophysiology of leptin with special emphasis on its role in the kidney / M. P. Nasrallah, N. Ziyadeh // Seminars in nephrology. - WB Saunders, 2013. - Vol. 33, № 1. - Р. 54-65.
31. Yurt K. K. Effects of the melatonin on the kidney of high fat diet fed obese rats: a stereological and histological approach / K. K. Yurt, Kayhan, B. Z. Altunkaynak [et al.] // J Exp Clin Med. - 2013. - Vol. 30, Р. 153-158.
32. Rajan T. Low birth weight and nephron mass and their role in the progression of chronic kidney disease: a case report on identical twins with Alport disease / T. Rajan, S. J. Barbour, C. T. White [et al.] // Nephrology Dialysis Transplantation. - 2011. - Vol. 26, № 12. - Р. 4136-4139.
33. Winiarska K. Melatonin nephroprotective action in Zucker diabetic fatty rats involves its inhibitory effect on NADPH oxidase / K. Winiarska, J. M. Dzik, M. Labudda [et al.] // Journal of pineal research. - 2016. - Vol. 60, № 1. - Р. 109-117.
34. Stacchiotti A. Mitochondrial and metabolic dysfunction in renal convoluted tubules of obese mice: protective role of melatonin / A. Stacchiotti, G. Favero, L. Giugno [et al.] // PloS one. - 2014. - Vol. 9, № 10. - Р. e111141.
35. Aperis G. The role of melatonin in patients with chronic kidney disease undergoing haemodialysis / G. Aperis, P. Prakash, C. Paliouras [et al.] // Journal of renal care. - 2012. - Vol. 38, № 2. - Р. 86-92.
36. Russcher M. The role of melatonin treatment in chronic kidney disease / M. Russcher, B. Koch, E. Nagtegaal [et al.] // Front Biosci (Landmark Ed). - 2012. - Vol. 17. - Р. 2644-56.
37. Hariri N. High-fat diet-induced obesity in animal models / N. Hariri, L. Thibault // Nutrition research reviews. - 2010. - Vol. 23, № 2. - Р. 270-299.
38. Hussein M. R. Intake of melatonin is associated with amelioration of physiological changes, both metabolic and morphological pathologies associated with obesity: an animal model / M. R. Hussein, O. G. Ahmed, A. F. Hassan [et al.] // International journal of experimental pathology. -- Vol. 88, № 1. - P. 19-29.
39. Doddigarla Z. Effect of Chromium Picolinate and Melatonin either in Single or in a Combination in Alloxan Induced Male Wistar Rats / Z. Doddigarla, I. Parwez, S. Abidi [et al.] // Journal of Biomedical Sciences. - 2016. - Vol. 6. - P. 1-7.
40. Elbe H. Amelioration of streptozotocin-induced diabetic nephropathy by melatonin, quercetin, and resveratrol in rats / H. Elbe,N. Vardi, M. Esrefoglu [et al.] // Human & experimental toxicology. - 2015. - Vol. 34, № 1. - P. 100-113.
41. Kaur G. Chronotherapy in practice: the perspective of the community pharmacist / G. Kaur, Y. L. Gan, C. L. Phillips [et al.] // International journal of clinical pharmacy. - 2016. - Vol. 38, № 1. -P. 171-182.
Reference(Scopus):
1. The official data of the WHO Bulletin published in May 2017.
2. Chen H. M., Chen Y., Zhang Y. D., Zhang P. P., Chen H. P., Wang Q.W., et al. Evaluation of metabolic risk marker in obesity-related glomerulopathy. Journal of Renal Nutrition. 2011; 21(4): 309-315.
3. Jeffrey L., Martin M. Obesity-Related Hypertension and Other Renal issues. J. Lancaster General Hospital. 2010; 5(1): 14-15.
4. Redon J., Lurbe E. The kidney in obesity. Current hypertension reports. 2015;17(6): 43.
5. Garofalo C., Borrelli S., Minutolo R., Chiodini P., De Nicola L., Conte G. A systematic review and meta-analysis suggests obesity predicts onset of chronic kidney disease in the general population. Kidney international. 2017;91(5): 1224-1235.
6. She M., Laudon M., Yin W. Melatonin receptors in diabetes: a potential new therapeutical target?. European journal of pharmacology. 2014; 744: 220-223.
7. Tokonami N., Mordasini D., Pradervand S., Centeno G., Jouffe C., Maillard M., et al. Local renal circadian clocks control fluid-electrolyte homeostasis and BP. Journal of the American Society of Nephrology. 2014; 25(7): 1430-1439.
8. Stacchiotti A., Nardo L., Rizzoni D., Rezzani R., Reiter R. J. Melatonin drives beneficial Sirtuin 1 expression in leptin-deficient mice liver through MT1 receptor. Italian Journal of Anatomy and Embryology. 2015; 120(1): 70.
9. Khoshvakhti H., Yurt K. K., Altunkaynak B. Z., Tьrkmen A. P., Elibol E., Aydin I., et al. Effects of melatonin on diclofenac sodium treated rat kidney: a stereological and histopathological study. Renal failure. 2015; 37(8): 1379-1383.
10. Baltatu O. C., Amaral F. G., Campos L. A., Cipolla-Neto J. Melatonin, mitochondria and hypertension. Cellular and molecular life sciences. 2017; 74(21): 3955-3964.
11. Selfridge J. M., Gotoh T., Schiffhauer S., Liu J., Stauffer P. E., Li A., et al. Chronotherapy: intuitive, sound, founded...but not broadly applied. Drugs. 2016; 76(16): 1507-1521.
12. Mьnch M., Kramer A. Timing matters: new tools for personalized chronomedicine and circadian health. Acta Physiologica. 2019; e13300.
13. Sulli G., Manoogian E. N., Taub P. R., Panda S. Training the circadian clock, clocking the drugs, and drugging the clock to prevent, manage, and treat chronic diseases. Trends in pharmacological sciences. 2018.
14. Halenova T., Raksha N., Vovk T., Savchuk O., Ostapchenko L., Prylutskyy Y., et al. Effect of C60 fullerene nanoparticles on the diet- induced obesity in rats. International journal of obesity (2005). 2018; 42 (12): 1987-1998.
15. Eknoyan G. Obesity and chronic kidney disease. Nefrologia (English Edition). 2011; 31(4): 397-403.
16. Ahn S. Y., Kim D. K., Han S. S., Park J. H., Shin S. J., Lee S. H., et al. Weight loss has an additive effect on the proteinuria reduction of angiotensin II receptor blockers in hypertensive patients with chronic kidney disease. Kidney research and clinical practice. 2018; 37(1): 49.
17. Khamaisi M., Flyvbjerg A., Haramati Z., Raz G., Wexler I. D., Raz I. Effect of mild hypoinsulinemia on renal hypertrophy: growth hormone/insulin-like growth factor I system in mild streptozotocin diabetes. Journal of Diabetes Research. 2002; 3 (4): 257-264.
18. Sarafidis P. A., Ruilope L. M. Insulin resistance, hyperinsulinemia, and renal injury: mechanisms and implications. American journal of nephrology. 2006; 26(3): 232-244.
19. Higgins S. P., Tang Y., Higgins C. E., Mian B., Zhang W., Czekay
R. P.,et al. TGF-Я1/p53 signaling in renal fibrogenesis. Cellular signalling. 2018; 43: 1-10.
20. Ma S., Zhu X. Y., Eirin A., Woollard J. R., Jordan K. L., Tang H., et al. Perirenal fat promotes renal arterial endothelial dysfunction in obese swine through tumor necrosis factor-а. The Journal of urology. 2016; 195 (4 Part 1): 1152-1159.
21. Huang J., Rajapakse A., Xiong Y., Montani J. P., Verrey F., Ming X. F., et al. Genetic targeting of arginase-ii in mouse prevents renal oxidative stress and inflammation in diet-induced obesity. Frontiers in physiology. 2016; 7: 560.
22. Wang C., Luo Z., Kohan D., Wellstein A., Jose P. A., Welch W. J., et al. Thromboxane prostanoid receptors enhance contractions, endothelin-1, and oxidative stress in microvessels from mice with chronic kidney disease. Hypertension. 2015; 65(5): 1055-1063.
23. Zanatta C. M., Crispim D., Sortica D. A., Klassmann L. P., Gross J. L., Gerchman F., et al. Endothelin-1 gene polymorphisms and diabetic kidney disease in patients with type 2 diabetes mellitus. Diabetology & metabolic syndrome. 2015; 7(1): 103.
24. Abitbol C. L., Chandar J., Rodriguez M. M., Berho M., Seeherunvong W., Freundlich M., et al. Obesity and preterm birth: additive risks in the progression of kidney disease in children. Pediatric Nephrology.2009; 24(7): 1363.
25. Briffa J. F., McAinch A. J., Poronnik P., Hryciw D. H. Adipokines as a link between obesity and chronic kidney disease. American Journal of Physiology-Renal Physiology. 2013; 305(12): F1629-F1636.
26. Young C. N., Morgan D. A., Butler S. D., Mark A. L., Davisson R. L. The brain subfornical organ mediates leptin-induced increases in renal sympathetic activity but not its metabolic effects. Hypertension. 2013; 61(3): 737-744.
27. Felizardo R. J. F., da Silva M. B., Aguiar C. F., Cвmara N. O. S. Obesity in kidney disease: a heavyweight opponent. World journal of nephrology. 2014; 3(3): 50.
28. Declиves A. E., Zolkipli Z., Satriano J., Wang L., Nakayama T., Rogac M., et al. Regulation of lipid accumulation by AMK-activated kinase in high fat diet-induced kidney injury. Kidney international. 2014; 65(3): 611-623.
29. Naumnik B., Mysliwiec M. Renal consequences of obesity. Medical Science Monitor. 2010; 16(8): 163-170.
30. Nasrallah M. P., Ziyadeh F. N. Overview of the physiology and pathophysiology of leptin with special emphasis on its role in the kidney. In Seminars in nephrology. 2013; 33(1): 54-65.
31. Yurt K. K., Kayhan E., Altunkaynak B. Z., Tьmentemur G., Kaplan S. Effects of the melatonin on the kidney of high fat diet fed obese rats: a stereological and histological approach. J Exp Clin Med. 2013; 30: 153-158.
32. Rajan T., Barbour S. J., White C. T., Levin A. Low birth weight and nephron mass and their role in the progression of chronic kidney disease: a case report on identical twins with Alport disease. Nephrology Dialysis Transplantation. 2011; 26(12): 4136-4139.
33. Winiarska K., Dzik J. M., Labudda M., Focht D., Sierakowski B., Owczarek A., et al. Melatonin nephroprotective action in Zucker diabetic fatty rats involves its inhibitory effect on NADPH oxidase. Journal of pineal research. 2016; 60(1): 109-117.
34. Stacchiotti A., Favero G., Giugno L., Lavazza A., Reiter R. J., Rodella L. F., et al. Mitochondrial and metabolic dysfunction in renal convoluted tubules of obese mice: protective role of melatonin. PloS one. 2014; 9(10): e111141.
35. Aperis G., Prakash P., Paliouras C., Papakonstantinou N., Alivanis P. The role of melatonin in patients with chronic kidney disease undergoing haemodialysis. Journal of renal care. 2012; 36(2): 86-92.
36. Russcher M., Koch B., Nagtegaal E., van der Putten K., ter Wee P., Gaillard C. The role of melatonin treatment in chronic kidney disease. Front Biosci (Landmark Ed). 2012; 17: 2644-56.
37. Hariri N., Thibault L. High-fat diet-induced obesity in animal models. Nutrition research reviews. 2010; 23(2): 270-299.
38. Hussein M. R., Ahmed O. G., Hassan A. F., Ahmed M. A. Intake of melatonin is associated with amelioration of physiological changes, both metabolic and morphological pathologies associated with obesity: an animal model. International journal of experimental pathology. 2007; 66(1): 19-29.
39. Doddigarla Z., Parwez I., Abidi S., Ahmad J. (). Effect of Chromium Picolinate and Melatonin either in Single or in a Combination in Alloxan Induced Male Wistar Rats. Journal of Biomedical Sciences. 2016; 6: 1-7.
40. Elbe H., Vardi N., Esrefoglu M., Ates B., Yologlu S., Taskapan C. Amelioration of streptozotocin-induced diabetic nephropathy by melatonin, quercetin, and resveratrol in rats. Human & experimental toxicology. 2015; 34(1): 100-113.
41. Kaur G., Gan Y. L., Phillips C. L., Wong K., Saini B. Chronotherapy in practice: the perspective of the community pharmacist. International journal of clinical pharmacy. 2016; 36(1): 171-182.
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