Expression of FASN and PEPCK genes in adipose tissues of obese subjects with and without diabetes mellitus
Badr, M., Abdelhakim, H., El-Desouky, M., Afify, M., Hamimy, W., Abdelmaksoud, M., Gouda, W. (2025). Expression of FASN and PEPCK genes in adipose tissues of obese subjects with and without diabetes mellitus. EKB Journal Management System, (), -. doi: 10.21608/ejchem.2025.380430.11673
Mona E. Badr; Heba K. Abdelhakim; Mohamed Aly El-Desouky; Mie Afify; Waleed I. Hamimy; Mohamed D. E. Abdelmaksoud; Weaam Gouda. "Expression of FASN and PEPCK genes in adipose tissues of obese subjects with and without diabetes mellitus". EKB Journal Management System, , , 2025, -. doi: 10.21608/ejchem.2025.380430.11673
Badr, M., Abdelhakim, H., El-Desouky, M., Afify, M., Hamimy, W., Abdelmaksoud, M., Gouda, W. (2025). 'Expression of FASN and PEPCK genes in adipose tissues of obese subjects with and without diabetes mellitus', EKB Journal Management System, (), pp. -. doi: 10.21608/ejchem.2025.380430.11673
Badr, M., Abdelhakim, H., El-Desouky, M., Afify, M., Hamimy, W., Abdelmaksoud, M., Gouda, W. Expression of FASN and PEPCK genes in adipose tissues of obese subjects with and without diabetes mellitus. EKB Journal Management System, 2025; (): -. doi: 10.21608/ejchem.2025.380430.11673

Expression of FASN and PEPCK genes in adipose tissues of obese subjects with and without diabetes mellitus

Egyptian Journal of Chemistry
Articles in Press, Accepted Manuscript, Available Online from 02 July 2025  XML
Document Type: Original Article
DOI: 10.21608/ejchem.2025.380430.11673
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Authors
Mona E. Badr1; Heba K. Abdelhakimorcid 1; Mohamed Aly El-Desouky1; Mie Afifyorcid 2; Waleed I. Hamimyorcid 3; Mohamed D. E. Abdelmaksoudorcid 2; Weaam Gouda email orcid 2
1Lab of Biochemistry, Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt.
2Biochemistry Department, Biotechnology Research Institute, National Research Centre, Giza, Egypt.
3Anesthesia Department, Obesity Surgery Unit, Faculty of Medicine, Cairo University, Giza, Egypt.
Abstract
Background: The investigation of phosphoenolpyruvate carboxykinase (PEPCK) and fatty acid synthase (FASN) genes that regulate the energy metabolism could enhance the development of preventive intervention strategies for obesity. Therefore, the purpose of this study is to determine the expression of FASN and PEPCK genes and to investigate their potential role in obese patients with or without type 2 diabetes mellitus (T2DM). Moreover, to explore the correlations between the clinical variables and the above-mentioned genes.

Subjects and methods: Forty obese subjects (25 obese non-diabetic and 15 obese diabetic) underwent bariatric surgery; abdominal subcutaneous adipose tissue (SAT) biopsies were collected from them during the surgery, and 15 non-obese subjects served as controls. The expressions of FASN and PEPCK mRNA were evaluated with quantitative real-time PCR technique, and data were analyzed using SPSS software.

Results: There was a statistically significant increase for PEPCK and FASN mRNA in subcutaneous adipose tissue of obese subjects with and without T2DM compared to controls (p-values < 0.001). Additionally, there was an association between FASN expressions and lipid parameters (TC: r=-0.564*, p=0.029; TG: r=0.684**, p=0.005; LDL: r=-0.637*, p=0.011; HDL: r=0.549*, p=0.034) as well as insulin (r=0.581*, p=0.023) and HOMA-IR (r=0.549*, p=0.34) in obese diabetic patients.

Conclusion: The FASN and PEPCK genes are more expressed in subcutaneous adipose tissues of obese individuals than normal controls, regardless of diabetes status. However, more future studies are needed with a larger sample size to assess our findings.
Keywords
Keywords: obesity; body mass index (BMI); type 2 diabetes mellitus (T2DM); subcutaneous adipose tissue (SAT); phosphoenolpyruvate carboxykinase (PEPCK); fatty acid synthase (FASN)
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