Modulation of age related protein expression changes by gelam honey in cardiac mitochondrial rats

Siti Maisarah Hasenan, Saiful Anuar Karsani, Zakiah Jubri

Research output: Contribution to journalArticle

Abstract

Aging is characterized by progressive decline in biochemical and physiological functions. According to the free radical theory of aging, aging results from oxidative damage due to the accumulation of excess reactive oxygen species (ROS). Mitochondria are the main source of ROS production and are also the main target for ROS. Therefore, a diet high in antioxidant such as honey is potentially able to protect the body from ROS and oxidative damage. Gelam honey is higher in flavonoid content and phenolic compounds compared to other local honey. This study was conducted to determine the effects of gelam honey on age related protein expression changes in cardiac mitochondrial rat. A total of 24 Sprague-Dawley male rats were divided into two groups: the young group (2 months old), and aged group (19 months old). Each group were then subdivided into two groups: control group (force-fed with distilled water), and treatment group (force-fed with gelam honey, 2.5 g/kg), and were treated for 8 months. Comparative proteomic analysis of mitochondria from cardiac tissue was then performed by high performance mass spectrometry (Q-TOF LCMS/MS) followed by validation of selected proteins by Western blotting. Proteins were identified using Spectrum Mill software and were subjected to stringent statistical analysis. A total of 286 proteins were identified in the young control group (YC) and 241 proteins were identified in the young gelam group (YG). In the aged group, a total of 243 proteins were identified in control group (OC), and 271 proteins in gelam group (OG). Comparative proteome profiling identified 69 proteins with different abundance (p < 0.05) in OC when compared to YC, and also in YG when compared to YC. On the other hand, 55 proteins were found to be different in abundance when comparing OG with OC. In the aged group, gelam honey supplementation affected the relative abundance of 52 proteins with most of these proteins showing a decrease in the control group. Bioinformatics analysis showed that the majority of the affected proteins were involved in the respiratory chain (OXPHOS) which play an important role in maintaining mitochondrial function.

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalExperimental Gerontology
Volume113
DOIs
Publication statusPublished - 1 Nov 2018

Fingerprint

Honey
Rats
Modulation
Proteins
Control Groups
Reactive Oxygen Species
Mitochondria
Aging of materials
Water Purification
Proteome
Bioinformatics
Nutrition
Electron Transport
Computational Biology
Flavonoids
Proteomics
Free Radicals
Mass spectrometry
Sprague Dawley Rats
Mass Spectrometry

Keywords

  • Aging
  • Antioxidant
  • Gelam honey
  • Mitochondria
  • Proteomic

ASJC Scopus subject areas

  • Biochemistry
  • Ageing
  • Molecular Biology
  • Genetics
  • Endocrinology
  • Cell Biology

Cite this

Modulation of age related protein expression changes by gelam honey in cardiac mitochondrial rats. / Hasenan, Siti Maisarah; Karsani, Saiful Anuar; Jubri, Zakiah.

In: Experimental Gerontology, Vol. 113, 01.11.2018, p. 1-9.

Research output: Contribution to journalArticle

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