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Musavi H, Shokri Afra H, Sadeghkhani F, Ghalehnoei H, Khonakdar-Tarsi A, Mahjoub S. A molecular and computational study of galbanic acid as a regulator of Sirtuin1 pathway in inhibiting lipid accumulation in HepG2 cells. Arch Physiol Biochem 2024:1-9. [PMID: 38712991 DOI: 10.1080/13813455.2024.2336911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 03/26/2024] [Indexed: 05/08/2024]
Abstract
INTRODUCTION Sirtuin1 (SIRT1) plays a crucial role in the pathophysiology of non-alcoholic fatty liver disease. We investigated the mechanistic role of galbanic acid (Gal) as a regulator of SIRT1 in silico and in vitro. METHODS HepG2 cells were treated with Gal in the presence or absence of EX-527, a SIRT1-specific inhibitor, for 24 h. Sirtuin1 gene and protein expression were measured by RT-PCR and Western blotting, respectively. It has been docked to the allosteric reign of SIRT1 (PDB ID: 4ZZJ) to study the effect of Gal on SIRT1, and then the protein and complex molecular dynamic (MD) simulations had been studied in 100 ns. RESULTS The semi-quantitative results of Oil red (p < .03) and TG level (p < .009) showed a significant reduction in lipid accumulation by treatment with Gal. Also, a significant increase was observed in the gene and protein expression of SIRT1 (p < .05). MD studies have shown that the average root mean square deviation (RMSD) was about 0.51 Å for protein structure and 0.66 Å for the complex. The average of radius of gyration (Rg) is 2.33 and 2.32 Å for protein and complex, respectively, and the pattern of root mean square fluctuation (RMSF) was almost similar. CONCLUSION Computational studies show that Gal can be a great candidate to use as a SIRT1 ligand because it does not interfere with the structure of the protein, and other experimental studies showed that Gal treatment with SIRT1 inhibitor increases fat accumulation in HepG2 cells.
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Affiliation(s)
- Hadis Musavi
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
| | - Hajar Shokri Afra
- Gut and Liver Research Center, Non-communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Farideh Sadeghkhani
- Department of Life Science Engineering, Faculty of New Sciences & Technologies, University of Tehran, Tehran, Iran
| | - Hossein Ghalehnoei
- Department of Medical Biotechnology, Molecular and Cell Biology Research Center, Faculty of Advanced Technologist in Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Abbas Khonakdar-Tarsi
- Department of Clinical Biochemistry and Medical Genetics, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
- Molecular and Cell Biology Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Soleiman Mahjoub
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
- Department of Clinical Biochemistry, School of Medicine, Babol University of Medical Sciences, Babol, Iran
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Singab ANB, Elhawary EA, Elkhawas YA, Fawzy IM, Moussa AY, Mostafa NM. Role of Nutraceuticals in Obesity Management: A Mechanism and Prospective Supported by Molecular Docking Studies. J Med Food 2024; 27:176-197. [PMID: 38324003 DOI: 10.1089/jmf.2023.0104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024] Open
Abstract
Obesity and its comorbidities represent a major health problem worldwide. Treatment by reducing food intake and physical activity interventions has limited success especially with elderly people with chronic diseases. Nutraceuticals are naturally originated and successfully used for their physiological and nutritional benefit in health care. They might be alternative means to help lose weight and reduce obesity-associated metabolic disorders with the improvement of health, delay the aging process, prevention of chronic diseases, increase of life expectancy, or support to the structure or function of the body. The current study enumerates the inherent role of nutraceuticals in the management of obesity and its related comorbidities. The study is supported with the molecular docking studies discussing the mechanism of action. An attempt to optimize the role of nutraceuticals is made in this article in addition to widen the scope of its use in this chronic worldwide disease.
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Affiliation(s)
- Abdel Nasser B Singab
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, Cairo, Egypt
- Center of Drug Discovery Research and Development, Ain-Shams University, Cairo, Egypt
| | - Esraa A Elhawary
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, Cairo, Egypt
| | - Yasmin A Elkhawas
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Future University in Egypt, Cairo, Egypt
| | - Iten M Fawzy
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Future University in Egypt, Cairo, Egypt
| | - Ashaimaa Y Moussa
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, Cairo, Egypt
| | - Nada M Mostafa
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, Cairo, Egypt
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Sheng X, Wang L, Zhan P, He W, Tian H, Liu J. Thyme ( Thymus quinquecostatus Celak) Polyphenol-Rich Extract (TPE) Alleviates HFD-Induced Liver Injury in Mice by Inactivating the TLR4/NF-κB Signaling Pathway through the Gut-Liver Axis. Foods 2023; 12:3074. [PMID: 37628072 PMCID: PMC10453248 DOI: 10.3390/foods12163074] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 08/05/2023] [Accepted: 08/12/2023] [Indexed: 08/27/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) represents a significant and urgent global health concern. Thyme (Thymus quinquecostatus Celak) is a plant commonly used in cuisine and traditional medicine in Asian countries and possesses potential liver-protective properties. This study aimed to assess the hepatoprotective effects of thyme polyphenol-rich extract (TPE) on high-fat diet (HFD)-induced NAFLD and further explore possible mechanisms based on the gut-liver axis. HFD-induced liver injury in C57 mice is markedly ameliorated by TPE supplementation in a dose-dependent manner. TPE also regulates the expression of liver lipid metabolic genes (i.e., Hmgcr, Srebp-1, Fasn, and Cyp7a1), enhancing the production of SCFAs and regulating serum metabolites by modulating gut microbial dysbiosis. Furthermore, TPE enhances the intestinal barrier function and alleviates intestinal inflammation by upregulating tight junction protein expression (i.e., ZO-1 and occluding) and inactivating the intestinal TLR4/NF-κB pathway in HFD-fed mice. Consequently, gut-derived LPS translocation to the circulation was blocked, the liver TLR4/NF-κB signaling pathway was repressed, and subsequent pro-inflammatory cytokine production was restrained. Conclusively, TPE might exert anti-NAFLD effects through the gut-liver axis and has the potential to be used as a dietary supplement for the management of NAFLD.
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Affiliation(s)
- Xialu Sheng
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an 710119, China; (X.S.); (P.Z.); (H.T.)
| | - Lixia Wang
- College of Life Sciences and Food Engineering, Shaanxi Xueqian Normal University, Xi’an 710061, China;
| | - Ping Zhan
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an 710119, China; (X.S.); (P.Z.); (H.T.)
| | - Wanying He
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an 710119, China; (X.S.); (P.Z.); (H.T.)
| | - Honglei Tian
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an 710119, China; (X.S.); (P.Z.); (H.T.)
| | - Jianshu Liu
- Shaanxi Provincial Research Center of Functional Food Engineering Technology, Xi’an 710100, China;
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Singh SB, Carroll-Portillo A, Lin HC. Desulfovibrio in the Gut: The Enemy within? Microorganisms 2023; 11:1772. [PMID: 37512944 PMCID: PMC10383351 DOI: 10.3390/microorganisms11071772] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/26/2023] [Accepted: 07/04/2023] [Indexed: 07/30/2023] Open
Abstract
Desulfovibrio (DSV) are sulfate-reducing bacteria (SRB) that are ubiquitously present in the environment and as resident commensal bacteria within the human gastrointestinal tract. Though they are minor residents of the healthy gut, DSV are opportunistic pathobionts that may overgrow in the setting of various intestinal and extra-intestinal diseases. An increasing number of studies have demonstrated a positive correlation between DSV overgrowth (bloom) and various human diseases. While the relationship between DSV bloom and disease pathology has not been clearly established, mounting evidence suggests a causal role for these bacteria in disease development. As DSV are the most predominant genera of SRB in the gut, this review summarizes current knowledge regarding the relationship between DSV and a variety of diseases. In this study, we also discuss the mechanisms by which these bacteria may contribute to disease pathology.
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Affiliation(s)
- Sudha B Singh
- Biomedical Research Institute of New Mexico, Albuquerque, NM 87108, USA
| | - Amanda Carroll-Portillo
- Division of Gastroenterology and Hepatology, University of New Mexico, Albuquerque, NM 87131, USA
| | - Henry C Lin
- Division of Gastroenterology and Hepatology, University of New Mexico, Albuquerque, NM 87131, USA
- Medicine Service, New Mexico VA Health Care System, Albuquerque, NM 87108, USA
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Yu Y, Li R, Pu L, Pan C, Guo C, Wang X. Citrus tangerine pith extract alleviates hypoxia-induced ileum damage in mice by modulating intestinal microbiota. Food Funct 2023. [PMID: 37314241 DOI: 10.1039/d3fo01096a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Visitors to high altitude are susceptible to hypoxia-induced acute intestinal mucosal barrier injury and severe gastrointestinal disorders, which are life-threatening. Citrus tangerine pith extract (CTPE) is rich in pectin and flavonoids and has been proved to enhance intestinal health and improve gut dysbiosis. In this study, we aim to explore the protective effect of CTPE on ileum injury induced by intermittent hypobaric hypoxia in a mouse model. Balb/c mice were divided into blank normoxia (BN), blank hypobaric hypoxia (BH), hypobaric hypoxia plus CTPE (TH), and hypobaric hypoxia plus Rhodiola extract (RH) groups. From the 6th day of gavage, mice in BH, TH, and RH groups were transferred into a hypobaric chamber at a simulated elevation of 6000 m for 8 hours per day for 10 days. Then half the mice were tested for small intestine movement, and others were used to evaluate intestinal physical barrier function, inflammation, and gut microbiota. Results showed that CTPE reversed the increase of intestinal peristalsis, effectively attenuated impaired structural integrity of ileum, improved the mRNA and protein expression levels of tight junction proteins, and reduced serum D-LA content in mice to alleviate hypoxia-induced mucosal barrier damage. Moreover, CTPE supplementation ameliorated hypoxia-induced intestinal inflammation response by significantly downregulating the proinflammatory cytokines IL-6, TNF-α and IFN-γ. By 16S rDNA gene sequencing of gut microbiota, CTPE significantly increased the abundance of probiotic Lactobacillus, suggesting that CTPE may be used as a prebiotic to regulate ecology of intestinal microorganisms. In addition, Spearman rank correlation analysis revealed that changed gut microbiota were significantly correlated with alteration of intestinal barrier function indexes. Taken together, these results indicate that CTPE effectively alleviates hypoxia-induced intestinal injury in mice and enhances intestinal integrity and barrier function by altering intestinal microbiota composition.
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Affiliation(s)
- Yijing Yu
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China.
| | - Ran Li
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China.
| | - Lingling Pu
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China.
| | - Cunyao Pan
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China.
| | - Changjiang Guo
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China.
| | - Xinxing Wang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China.
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