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Effect of Age on the Protein Profile of Healthy Malay Adults and its Association with Cognitive Function Competency

BACKGROUND: Many studies on biochemical and psychological variables have aimed to elucidate the association between aging and cognitive function. Demographic differences and protein expression have been reported to play a role in determining the cognitive capability of a population. OBJECTIVE: This...

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Detalles Bibliográficos
Autores principales: Abu Bakar, Zulzikry Hafiz, Damanhuri, Hanafi Ahmad, Makpol, Suzana, Wan Kamaruddin, Wan Mohd Aizat, Abdul Sani, Nur Fathiah, Amir Hamzah, Ahmad Imran Zaydi, Nor Aripin, Khairun Nain, Mohd Rani, Mohd Dzulkhairi, Noh, Nor Azila, Razali, Rosdinom, Mazlan, Musalmah, Abdul Hamid, Hamzaini, Mohamad, Mazlyfarina, Wan Ngah, Wan Zurinah
Formato: Online Artículo Texto
Lenguaje:English
Publicado: IOS Press 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6706781/
https://www.ncbi.nlm.nih.gov/pubmed/30594926
http://dx.doi.org/10.3233/JAD-180511
Descripción
Sumario:BACKGROUND: Many studies on biochemical and psychological variables have aimed to elucidate the association between aging and cognitive function. Demographic differences and protein expression have been reported to play a role in determining the cognitive capability of a population. OBJECTIVE: This study aimed to determine the effect of age on the protein profile of Malay individuals and its association with cognitive competency. METHODS: A total of 160 individuals were recruited and grouped accordingly. Cognitive competency of each subject was assessed with several neuropsychological tests. Plasma samples were collected and analyzed with Q Exactive HF Orbitrap. Proteins were identified and quantitated with MaxQuant and further analyzed with Perseus to determine differentially expressed proteins. PANTHER, Reactome, and STRING were applied for bioinformatics output. RESULTS: Our data showed that the Malay individuals are vulnerable to the deterioration of cognitive function with aging, and most of the proteins were differentially expressed in concordance. Several physiological components and pathways were shown to be involved, giving a hint of a promising interpretation on the induction of aging toward the state of the Malays’ cognitive function. Nevertheless, some proteins have shown a considerable interaction with the generated protein network, which provides a direction of focus for further investigation. CONCLUSION: This study demonstrated notable changes in the expression of several proteins as age increased. These changes provide a promising platform for understanding the biochemical factors affecting cognitive function in the Malay population. The exhibited network of protein-protein interaction suggests the possibility of implementing regulatory intervention in ameliorating Malay cognitive function.