The effects of annatto tocotrienol on body composition and serum adiponectin, leptin and glucose level in a rat model of androgen deficiency induced by buserelin

Androgen ablation therapy using gonadotropin-releasing hormone agonists is reported to be associated with metabolic abnormalities. Annatto tocotrienol (AnTT) is reported to reduce the expression of genes related to adipogenesis but the mechanism remains elusive. This study sought to determine the...

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Main Authors: Mohamad NV, Ima-Nirwana Soelaiman, Chin, Kok Yong
Format: Article
Language:English
Published: Pusat Perubatan Universiti Kebangsaan Malaysia 2019
Online Access:http://journalarticle.ukm.my/15557/1/15_ms0317_pdf_20493.pdf
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author Mohamad NV,
Ima-Nirwana Soelaiman,
Chin, Kok Yong
author_facet Mohamad NV,
Ima-Nirwana Soelaiman,
Chin, Kok Yong
author_sort Mohamad NV,
collection UKM
description Androgen ablation therapy using gonadotropin-releasing hormone agonists is reported to be associated with metabolic abnormalities. Annatto tocotrienol (AnTT) is reported to reduce the expression of genes related to adipogenesis but the mechanism remains elusive. This study sought to determine the effects of annatto tocotrienol on body composition (lean and fat mass), serum adiponectin, leptin, and glucose levels in male rats treated with buserelin, a testosterone ablation agent. Three-month-old male Sprague Dawley rats (n=32) were randomly divided into four groups. The normal control (n=8) was given corn oil orally daily and normal saline subcutaneously daily. The remaining groups were injected with buserelin subcutaneously (75µg/kg/day). The buserelin group (n=8) was given corn oil orally, while the treatment groups were supplemented orally with AnTT at 60 or 100 mg/ kg (n = 8/group). After treatment of 12 weeks, rats were euthanized. Dual-energy x-ray absorptiometry was performed to determine the lean and fat mass of the rats. Blood was collected for the evaluation of adiponectin, leptin and glucose levels. After 12 weeks, the lean mass, fat mass, adiponectin and leptin levels for all groups increased significantly compared to their respective baseline levels irrespective of their treatment (P<0.05). All groups, except rats receiving AnTT at 60 mg/kg, experienced a significant increase in glucose level after 3 months (P<0.05). Androgen ablation and AnTT do not influence body composition, adiponectin and leptin levels in male rats. However, annatto tocotrienol at 60 mg/kg may improve glucose metabolism.
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spelling ukm.eprints-155572020-11-04T16:14:16Z http://journalarticle.ukm.my/15557/ The effects of annatto tocotrienol on body composition and serum adiponectin, leptin and glucose level in a rat model of androgen deficiency induced by buserelin Mohamad NV, Ima-Nirwana Soelaiman, Chin, Kok Yong Androgen ablation therapy using gonadotropin-releasing hormone agonists is reported to be associated with metabolic abnormalities. Annatto tocotrienol (AnTT) is reported to reduce the expression of genes related to adipogenesis but the mechanism remains elusive. This study sought to determine the effects of annatto tocotrienol on body composition (lean and fat mass), serum adiponectin, leptin, and glucose levels in male rats treated with buserelin, a testosterone ablation agent. Three-month-old male Sprague Dawley rats (n=32) were randomly divided into four groups. The normal control (n=8) was given corn oil orally daily and normal saline subcutaneously daily. The remaining groups were injected with buserelin subcutaneously (75µg/kg/day). The buserelin group (n=8) was given corn oil orally, while the treatment groups were supplemented orally with AnTT at 60 or 100 mg/ kg (n = 8/group). After treatment of 12 weeks, rats were euthanized. Dual-energy x-ray absorptiometry was performed to determine the lean and fat mass of the rats. Blood was collected for the evaluation of adiponectin, leptin and glucose levels. After 12 weeks, the lean mass, fat mass, adiponectin and leptin levels for all groups increased significantly compared to their respective baseline levels irrespective of their treatment (P<0.05). All groups, except rats receiving AnTT at 60 mg/kg, experienced a significant increase in glucose level after 3 months (P<0.05). Androgen ablation and AnTT do not influence body composition, adiponectin and leptin levels in male rats. However, annatto tocotrienol at 60 mg/kg may improve glucose metabolism. Pusat Perubatan Universiti Kebangsaan Malaysia 2019 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/15557/1/15_ms0317_pdf_20493.pdf Mohamad NV, and Ima-Nirwana Soelaiman, and Chin, Kok Yong (2019) The effects of annatto tocotrienol on body composition and serum adiponectin, leptin and glucose level in a rat model of androgen deficiency induced by buserelin. Medicine & Health, 14 (2). pp. 168-179. ISSN 2289-5728 https://www.medicineandhealthukm.com/toc/14/2
spellingShingle Mohamad NV,
Ima-Nirwana Soelaiman,
Chin, Kok Yong
The effects of annatto tocotrienol on body composition and serum adiponectin, leptin and glucose level in a rat model of androgen deficiency induced by buserelin
title The effects of annatto tocotrienol on body composition and serum adiponectin, leptin and glucose level in a rat model of androgen deficiency induced by buserelin
title_full The effects of annatto tocotrienol on body composition and serum adiponectin, leptin and glucose level in a rat model of androgen deficiency induced by buserelin
title_fullStr The effects of annatto tocotrienol on body composition and serum adiponectin, leptin and glucose level in a rat model of androgen deficiency induced by buserelin
title_full_unstemmed The effects of annatto tocotrienol on body composition and serum adiponectin, leptin and glucose level in a rat model of androgen deficiency induced by buserelin
title_short The effects of annatto tocotrienol on body composition and serum adiponectin, leptin and glucose level in a rat model of androgen deficiency induced by buserelin
title_sort effects of annatto tocotrienol on body composition and serum adiponectin leptin and glucose level in a rat model of androgen deficiency induced by buserelin
url http://journalarticle.ukm.my/15557/1/15_ms0317_pdf_20493.pdf
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