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Diabetes Metab J : Diabetes & Metabolism Journal



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Basic Research
Role of Intestinal Microbiota in Metabolism of Voglibose In Vitro and In Vivo
Mahesh Raj Nepal, Mi Jeong Kang, Geon Ho Kim, Dong Ho Cha, Ju-Hyun Kim, Tae Cheon Jeong
Diabetes Metab J. 2020;44(6):908-918.   Published online April 6, 2020
  • 5,814 View
  • 114 Download
  • 6 Web of Science
  • 6 Crossref
AbstractAbstract PDFSupplementary MaterialPubReader   ePub   

Voglibose, an α-glucosidase inhibitor, inhibits breakdown of complex carbohydrates into simple sugar units in intestine. Studies showed that voglibose metabolism in the liver might be negligible due to its poor intestinal absorption. Numerous microorganisms live in intestine and have several roles in metabolism and detoxification of various xenobiotics. Due to the limited information, the possible metabolism of voglibose by intestinal microbiota was investigated in vitro and in vivo.


For the in vitro study, different concentrations of voglibose were incubated with intestinal contents, prepared from both vehicle- and antibiotics-treated mice, to determine the decreased amount of voglibose over time by using liquid chromatography-mass spectrometry. Similarly, in vivo pharmacodynamic effect of voglibose was determined following the administration of voglibose and starch in vehicle- and antibiotic-pretreated non-diabetic and diabetic mice, by measuring the modulatory effects of voglibose on blood glucose levels.


The in vitro results indicated that the remaining voglibose could be significantly decreased when incubated with the intestinal contents from normal mice compared to those from antibiotic-treated mice, which had less enzyme activities. The in vivo results showed that the antibiotic pretreatment resulted in reduced metabolism of voglibose. This significantly lowered blood glucose levels in antibiotic-pretreated mice compared to the control animals.


The present results indicate that voglibose would be metabolized by the intestinal microbiota, and that this metabolism might be pharmacodynamically critical in lowering blood glucose levels in mice.


Citations to this article as recorded by  
  • Pharmacomicrobiomics and type 2 diabetes mellitus: A novel perspective towards possible treatment
    Liyang Jia, Shiqiong Huang, Boyu Sun, Yongguang Shang, Chunsheng Zhu
    Frontiers in Endocrinology.2023;[Epub]     CrossRef
  • Phenolics from endophytic fungi as natural α-glucosidase inhibitors: A comprehensive review
    Muhammad Imran Tousif, Saba Tauseef, Sadeer Nabeelah, Jugreet Sharmeen, Gokhan Zengin, Lesetja Legoabe, Muhammad Imran, Mohamad Fawzi Mahomoodally
    Journal of Molecular Structure.2023; 1291: 135852.     CrossRef
  • Ligand-targeted fishing of α-glucosidase inhibitors from Tribulus terrestris L. based on chitosan-functionalized multi-walled carbon nanotubes with immobilized α-glucosidase
    Xin Meng, Hou Zong, Zhong Zheng, Junpeng Xing, Zhiqiang Liu, Fengrui Song, Shu Liu
    Analytical and Bioanalytical Chemistry.2023; 415(14): 2677.     CrossRef
  • Isolation, structure elucidation, and biological activities of sesquiterpenes and phthalides from two edible mushrooms Pleurotus species
    Jewel C De Padua, Emi Fukushima-Sakuno, Kotomi Ueno, Thomas Edison E dela Cruz, Atsushi Ishihara
    Bioscience, Biotechnology, and Biochemistry.2023; 87(12): 1429.     CrossRef
  • Effects of Oral Glucose-Lowering Agents on Gut Microbiota and Microbial Metabolites
    Dongmei Wang, Jieying Liu, Liyuan Zhou, Qian Zhang, Ming Li, Xinhua Xiao
    Frontiers in Endocrinology.2022;[Epub]     CrossRef
  • 18:0 Lyso PC, a natural product with potential PPAR-γ agonistic activity, plays hypoglycemic effect with lower liver toxicity and cardiotoxicity in db/db mice
    Yiming Ma, Xinyi Du, Dandan Zhao, Kegong Tang, Xiaona Wang, Shaoting Guo, Xiaobei Li, Song Mei, Na Sun, Jiaqi Liu, Chengyu Jiang
    Biochemical and Biophysical Research Communications.2021; 579: 168.     CrossRef
Functional and Mechanistic Integration of Infection and the Metabolic Syndrome
Peter Sommer, Gary Sweeney
Korean Diabetes J. 2010;34(2):71-76.   Published online April 30, 2010
  • 3,376 View
  • 28 Download
  • 14 Crossref
AbstractAbstract PDFPubReader   

The metabolic syndrome refers to a well defined group of risk factors, including central obesity and inflammation, for the development of diabetes and cardiovascular disease. Interestingly, many studies have recently led to the emergence of somewhat unexpected relationships between several infectious diseases and various aspects of the metabolic syndrome. Our understanding of the mechanisms underlying these interactions is also rapidly developing and some of these are summarized in this article. We will focus first on bacterial infection, and most notably the role of gut microbiota in regulaton of both obesity and inflammation. In particular, we focus on the role of inflammasomes and propose that understanding the role of Toll-like receptors and Nod-like receptors in the pathogenesis of inflammatory disorders with or without infection may provide novel targets for prevention and/or treatment of associated diseases. Secondly, chronic bacterial or viral infection and emerging links with metabolism will be reviewed. Finally, consideratons of biomarkers for metabolic syndrome, in particular lipocalin-2, and their link with infection will be discussed.


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    Precision and Future Medicine.2020; 4(3): 83.     CrossRef
  • Holo-lipocalin-2–derived siderophores increase mitochondrial ROS and impair oxidative phosphorylation in rat cardiomyocytes
    Erfei Song, Sofhia V. Ramos, Xiaojing Huang, Ying Liu, Amy Botta, Hye Kyoung Sung, Patrick C. Turnbull, Michael B. Wheeler, Thorsten Berger, Derek J. Wilson, Christopher G. R. Perry, Tak W. Mak, Gary Sweeney
    Proceedings of the National Academy of Sciences.2018; 115(7): 1576.     CrossRef
  • Tuberculosis of the Breast: An Initial Presentation of the Metabolic Syndrome with Type 2 Diabetes Mellitus in a Young Nigerian Woman
    M. A. Adeiza, R. Yusuf, A. A. Liman, P. Abur, F. Bello, A. A. Abba
    Case Reports in Infectious Diseases.2016; 2016: 1.     CrossRef
  • Systematic Review of the Relation Between Intestinal Microbiota and Toll-Like Receptors in the Metabolic Syndrome: What Do We Know So Far?
    José Pedro Portela-Cidade, Marta Borges-Canha, Adelino Ferreira Leite-Moreira, Pedro Pimentel-Nunes
    GE Portuguese Journal of Gastroenterology.2015; 22(6): 240.     CrossRef
  • Impact of Cadmium Exposure on the Association between Lipopolysaccharide and Metabolic Syndrome
    Seung Han, Kyoung Ha, Ja Jeon, Hae Kim, Kwan Lee, Dae Kim
    International Journal of Environmental Research and Public Health.2015; 12(9): 11396.     CrossRef
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    Yee Kwan Chan, Hye Kyoung Sung, Gary Sweeney
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    Min Park, Gary Sweeney
    Heart Failure Reviews.2013; 18(5): 631.     CrossRef
  • The Thioredoxin System as a Therapeutic Target in Human Health and Disease
    Dler Faieeq Darweesh Mahmood, Amna Abderrazak, Khadija El Hadri, Thomas Simmet, Mustapha Rouis
    Antioxidants & Redox Signaling.2013; 19(11): 1266.     CrossRef
  • Immunoglobulin E and mast cell proteases are potential risk factors of impaired fasting glucose and impaired glucose tolerance in humans
    Zhen Wang, Hong Zhang, Xu-Hui Shen, Kui-Li Jin, Guo-fen Ye, Wei Qiu, Li Qian, Bo Li, Yong-Hong Zhang, Guo-Ping Shi
    Annals of Medicine.2013; 45(3): 220.     CrossRef
  • Immunoglobulin E and Mast Cell Proteases Are Potential Risk Factors of Human Pre-Diabetes and Diabetes Mellitus
    Zhen Wang, Hong Zhang, Xu-Hui Shen, Kui-Li Jin, Guo-fen Ye, Li Qian, Bo Li, Yong-Hong Zhang, Guo-Ping Shi, Yiqing Song
    PLoS ONE.2011; 6(12): e28962.     CrossRef
Case Report
A Case of Acute Multifocal Bacterial Nephritis Associated with Diabetic Autonomic Neuropathy.
Eun Kyung Park, Jae Hak Lee, Ji Sung Yoon, Ji O Mok, Yeo Joo Kim, Hyeong Kyu Park, Chul Hee Kim, Sang Jin Kim, Dong Won Byun, Kyo Il Suh, Myung Hi Yoo
Korean Diabetes J. 2003;27(4):379-384.   Published online August 1, 2003
  • 1,113 View
  • 18 Download
AbstractAbstract PDF
Acute multifocal bacterial nephritis is a severe form of acute renal infection in which a heavy leukocytic infiltrate occurs throughout the kidney. It is also an early phase of renal corticomedullary abscess. Clinically, patients have evidence of a severe urinary tract infection secondary to a gram-negative organism and there are frequently signs of sepsis. About half of the reported patients have been diabetics. Urinary tract infections are more common in diabetic women than in non-diabetic women. A variety of factors may contribute. The most important predisposing factor may be bladder dysfunction as a result of diabetic neuropathy and cystopathy. Diabetic cystopathy begins as decreased bladder sensation and decreased reflex detrusor activity caused by neuropathy affecting sympathetic and parasympathetic afferent fibers. Impaired bladder sensation results in bladder distention and increased residual urine volume. Long-term effects may eventually be vesicoureteral reflux and recurrent upper urinary tract infection. However, until now no diabetic patient with acute multifocal bacterial nephritis has been reported in Korea. Acute multifocal bacterial nephritis can be diagnosed by clinical manifestations and on radiologic grounds, including abdominal computed tomography showing multiple, wedge shaped, poorly defined areas of decreased contrast enhancement in multiple renal lobes. Therefore, we report the first Korean case of acute multifocal bacterial nephritis associated with diabetic autonomic neuropathy and review the literatures.

Diabetes Metab J : Diabetes & Metabolism Journal