Acta Scientific Microbiology

Research Article Volume 8 Issue 5

Comparison of Gut Bacteria Structures Between Obese and Non-Obese Subjects in Libya

Hanan K Bokhamada1, Hind A Elzletni1*, Intesar Ahmad Hasan Elmasli1, Fatma M Elmestiri2, Fathia A Halom1 and Aida Mohamed Mahmoud1

1Biology Department, Faculty of Education, University of Benghazi, Benghazi, Libya
2Zoology Department, Science Faculty, University of Benghazi, Benghazi, Libya

*Corresponding Author: Hind A Elzletni, Zoology Department, Science Faculty, University of Benghazi, Benghazi, Libya.

Received: April 14, 2025; Published: April 23, 2025

Abstract

Background: Obesity has become main public health concerns globally. The main player in development of obesity that has been pointed out for two decades is the gut bacteria. Alteration in gut bacteria structure is associated with obesity development.

Aim, our study aimed to identify differences in gut bacteria structures between obese and non-obese subject. Besides, to determine whether there is correlation between fecal gut bacteria and anthropometric measurements, FSB, HbA1and lipid profile. Methods: the fecal microbiota of 61 Libyan volunteers was observed using conventional culture method.

Results: significant decreased was detected in prevalence of Prevotella copri (p. copri) in obese subject comparing to non- obese. The abundance of P. copri negatively correlated with age (r = -0.529, p = 0.001), BMI (r = -0.580, p = 0.0003), TC (r = -0.47, p = 0.001), LDL-C (r = -0.320, p = 0.05), and HDL-C (r = -0.409, p = 0.02) and positively correlated with WC (r = 0.501, p = 0.003).

Conclusion: P. copri was significantly less prevalent in obese individuals suggests its beneficial effects on BMI and lipid metabolism. This was confirmed by the negative correlation between P. copri and BMI, LDL, and HDL. The age-related decline in P. copri further exacerbates these metabolic disturbances. However, its positive correlation with WC may reflect a more nuanced relationship with fat distribution, particularly abdominal fat. This highlights the complexity of the gut microbiome's role in metabolic health and obesity, where different bacterial species can have distinct, sometimes opposing, effects on various metabolic parameters

Keywords: Obesity; Fecal Gut Bacteria; BMI; FBS; Lipid Profile

References

  1. “Overweight and Obesity” (2025).
  2. Clemente JC., et al. “The impact of the gut microbiota on human health: An integrative view”. Cell6 (2012): 1258-1270.
  3. Cheng Z., et al. “The critical role of gut microbiota in obesity”. Frontiers in Endocrinology 13 (2022): 1025706.
  4. Yun Y., et al. “Comparative analysis of gut microbiota associated with body mass index in a large korean cohort”. BMC Microbiology 17 (2017): 1-9.
  5. Ley RE., et al. “Obesity alters gut microbial ecology”. Proceedings of the National Academy of Sciences of the United States of America 102 (2005): 11070-11075.
  6. Armougom F., et al. “Monitoring bacterial community of human gut microbiota reveals an increase in lactobacillus in obese patients and methanogens in anorexic patients”. PloS One9 (2009): e7125.
  7. Million M., et al. “Obesity-associated gut microbiota is enriched in lactobacillus reuteri and depleted in bifidobacterium animalis and methanobrevibacter smithii”. International Journal of Obesity6 (2012): 817-825.
  8. Osborne G., et al. “The association between gut microbiome and anthropometric measurements in Bangladesh”. Gut Microbes1 (2020): 63-76.
  9. Ley R E., et al. “Human gut microbes associated with obesity”. Nature7122 (2006): 1022-1023.
  10. Nadal I., et al. “Shifts in clostridia, bacteroides and immunoglobulin-coating fecal bacteria associated with weight loss in obese adolescents”. International Journal of Obesity 10 (2012).
  11. Santacruz A., et al. “Interplay between weight loss and gut microbiota composition in overweight adolescents”. Obesity10 (2009): 1906-1915.
  12. Hedin C R., et al. “Altered intestinal microbiota and blood T cell phenotype are shared by patients with crohn's disease and their unaffected siblings”. Gut 10 (2012): 1578-1586.
  13. DeGruttola A K., et al. “Current understanding of dysbiosis in disease in human and animal models”. Inflammatory Bowel Diseases5 (2016): 1137-1150.
  14. Cuevas-Sierra A., et al. “Diet, gut microbiota, and obesity: Links with host genetics and epigenetics and potential applications”. Advances in Nutrition 10 (2019): S17-S30.
  15. Hanan K., et al. “The Comparative Between Gut Microbiota in Type 2 Patients Diabetes and Health People”. Acta Scientific Microbiology10 (2021).
  16. Abdelsalam N A., et al. “The curious case of prevotella copri”. Gut Microbes2 (2023): 2249152.
  17. Greiner T and Bäckhed F. “Effects of the gut microbiota on obesity and glucose homeostasis”. Trends in Endocrinology and Metabolism4 (2011): 117-123.
  18. Claesson M J., et al. “Composition, variability, and temporal stability of the intestinal microbiota of the elderly”. Proceedings of the National Academy of Sciences 108 (2011): 4586-4591.
  19. Saraswati S and Sitaraman R. “Aging and the human gut microbiota—from correlation to causality”. Frontiers in Microbiology 5 (2015): 764.
  20. Yang C., et al. “Prevotella copri alleviates hyperglycemia and regulates gut microbiota and metabolic profiles in mice”. MSystems7 (2024): 532.
  21. Samuel BS., et al. “Effects of the gut microbiota on host adiposity are modulated by the short-chain fatty-acid binding G protein-coupled receptor, Gpr41”. Proceedings of the National Academy of Sciences 43 (2008): 16767-16772.
  22. Pedersen HK., et al. “Human gut microbes impact host serum metabolome and insulin sensitivity”. Nature 7612 (2016): 376-381.
  23. Zhang C and Zhao L. “Strain-level dissection of the contribution of the gut microbiome to human metabolic disease”. Genome Medicine 8 (2016): 1-10.‏
  24. Ley RE. “Prevotella in the gut: choose carefully”. Nature Reviews Gastroenterology and Hepatology2 (2016): 69-70.‏
  25. Cani P D. “Human gut microbiome: hopes, threats and promises”. Gut 9 (2018): 1716-1725.‏
  26. De Filippis F., et al. “Distinct genetic and functional traits of human intestinal Prevotella copri strains are associated with different habitual diets”. Cell Host and Microbe3 (2019): 444-453.‏
  27. Zhang C., et al. “Interactions between gut microbiota, host genetics and diet relevant to development of metabolic syndromes in mice”. The ISME Journal2 (2010): 232-241.‏
  28. Patnode M L., et al. “Interspecies competition impacts targeted manipulation of human gut bacteria by fiber-derived glycans”. Cell1 (2019): 59-73.‏
  29. Péan N., et al. “Dominant gut prevotella copri in gastrectomised non-obese diabetic Goto-Kakizaki rats improves glucose homeostasis through enhanced FXR signalling”. Diabetologia 63 (2020): 1223-1235.
  30. Turnbaugh P J., et al. “A core gut microbiome in obese and lean twins”. Nature 7228 (2009): 480-484.‏
  31. Schwiertz A., et al. “Microbiota and SCFA in lean and overweight healthy subjects”. Obesity1 (2010): 190-195.
  32. Zuo H., et al. “Gut bacteria alteration in obese people and its relationship with gene polymorphism”. World Journal of Gastroenterology: WJG8 (2011): 1076.
  33. Mai V., et al. “Associations between dietary habits and body mass index with gut microbiota composition and fecal water genotoxicity: An observational study in african american and caucasian american volunteers”. Nutrition Journal 8 (2009): 1-10.
  34. Zupancic M L., et al. “Analysis of the gut microbiota in the old order Amish and its relation to the metabolic syndrome”. PLoS One8 (2012): e43052.
  35. Duncan S H., et al. “Human colonic microbiota associated with diet, obesity and weight loss”. International Journal of Obesity11 (2008): 1720-1724.
  36. Brooks A W., et al. “Gut microbiota diversity across ethnicities in the United States”. PLoS Biology12 (2018): e2006842.
  37. Dominianni C., et al. “Sex, body mass index, and dietary fiber intake influence the human gut microbiome”. PloS One4 (2015): e0124599.
  38. Tagliabue A and Elli M. “The role of gut microbiota in human obesity: recent findings and future perspectives”. Nutrition, Metabolism and Cardiovascular Diseases3 (2013): 160-168.‏
  39. Kasai C., et al. “Comparison of the gut microbiota composition between obese and non-obese individuals in a japanese population, as analyzed by terminal restriction fragment length polymorphism and next-generation sequencing”. BMC Gastroenterology 15 (2015): 1-10.
  40. Muheyati D., et al. “Composition of gut microbiota in obese and normal-weight uygur adults and its association with adipocyte-related factors”. Scientific Reports1 (2024): 24649.
  41. Haro C., et al. “Intestinal microbiota is influenced by gender and body mass index”. PloS One5 (2016): e0154090.
  42. Gao X., et al. “Body mass index differences in the gut microbiota are gender specific”. Frontiers in Microbiology 9 (2018): 1250.

Citation

Citation: Hind A Elzletni., et al. “Comparison of Gut Bacteria Structures Between Obese and Non-Obese Subjects in Libya".Acta Scientific Microbiology 8.5 (2025): 74-81.

Copyright

Copyright: © 2025 Hind A Elzletni., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.




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