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Abulmeaty MMA, Almajwal AM, Alnumair KS, Razak S, Hasan MM, Fawzy A, Farraj AI, Abudawood M, Aljuraiban GS. Effect of Long-Term Continuous Light Exposure and Western Diet on Adropin Expression, Lipid Metabolism, and Energy Homeostasis in Rats. BIOLOGY 2021; 10:biology10050413. [PMID: 34066943 PMCID: PMC8148543 DOI: 10.3390/biology10050413] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/30/2021] [Accepted: 05/01/2021] [Indexed: 12/15/2022]
Abstract
Long-term continuous light exposure (CL) and western diet (WD) effects on Adropin expression, RORα, and Rev-erb-α nuclear receptors and energy homeostasis were studied in rats. Thirty-two male Wistar rats (250-290 g) were enrolled for 3 months in the following groups (n = 8/group): (a) Normal control group (NC), (b) CL group, (c) WD group, and (d) CL + WD group. Then, indirect calorimetry and food intake (FI) were measured. Finally, Adropin, hormone-sensitive lipase (HSL), adipocyte triglyceride lipase (ATGL), and free fatty acids (FFA) were measured. Additionally, the histopathology and gene expression of Enho, RORα, and Rev-erb-α genes were done. The CL alone elevated the Adropin plasma level and gene expression, increased RORα expression, and decreased the Rev-erb-α nuclear receptor expression mainly in the liver and kidney. Besides, CL increased the total energy expenditure (TEE) and decreased the respiratory quotient. WD alone or in combination with the CL reversed gene expression of Enho, RORα, and Rev-erb-α. Combined CL and WD increased the TEE, reduced the food intake, increased the ATGL, and reduced the Adropin level in addition to widespread degenerative changes in the liver, spleen, and renal tissues. The deleterious effects of CL and WD on energy homeostasis may include Adropin with the involvement of the RORα and Rev-erb-α nuclear receptors.
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Affiliation(s)
- Mahmoud Mustafa Ali Abulmeaty
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11362, Saudi Arabia; (A.M.A.); (K.S.A.); (S.R.); (G.S.A.)
- Department of Medical Physiology, School of Medicine, Zagazig University, Zagazig 44519, Egypt;
- Correspondence: ; Tel.: +966-54-815-5983
| | - Ali Madi Almajwal
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11362, Saudi Arabia; (A.M.A.); (K.S.A.); (S.R.); (G.S.A.)
| | - Khalid S. Alnumair
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11362, Saudi Arabia; (A.M.A.); (K.S.A.); (S.R.); (G.S.A.)
| | - Suhail Razak
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11362, Saudi Arabia; (A.M.A.); (K.S.A.); (S.R.); (G.S.A.)
| | - Mai Mohammed Hasan
- Department of Medical Physiology, School of Medicine, Zagazig University, Zagazig 44519, Egypt;
| | - Amal Fawzy
- Department of Medical Biochemistry, School of Medicine, Zagazig University, Zagazig 44519, Egypt;
| | - Abdullah Ibrahim Farraj
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11362, Saudi Arabia; (A.I.F.); (M.A.)
| | - Manal Abudawood
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11362, Saudi Arabia; (A.I.F.); (M.A.)
| | - Ghadeer S. Aljuraiban
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11362, Saudi Arabia; (A.M.A.); (K.S.A.); (S.R.); (G.S.A.)
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