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Ahmad Z, Kahloan W, Rosen ED. Transcriptional control of metabolism by interferon regulatory factors. Nat Rev Endocrinol 2024; 20:573-587. [PMID: 38769435 PMCID: PMC11392651 DOI: 10.1038/s41574-024-00990-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/12/2024] [Indexed: 05/22/2024]
Abstract
Interferon regulatory factors (IRFs) comprise a family of nine transcription factors in mammals. IRFs exert broad effects on almost all aspects of immunity but are best known for their role in the antiviral response. Over the past two decades, IRFs have been implicated in metabolic physiology and pathophysiology, partly as a result of their known functions in immune cells, but also because of direct actions in adipocytes, hepatocytes, myocytes and neurons. This Review focuses predominantly on IRF3 and IRF4, which have been the subject of the most intense investigation in this area. IRF3 is located in the cytosol and undergoes activation and nuclear translocation in response to various signals, including stimulation of Toll-like receptors, RIG-I-like receptors and the cGAS-STING pathways. IRF3 promotes weight gain, primarily by inhibiting adipose thermogenesis, and also induces inflammation and insulin resistance using both weight-dependent and weight-independent mechanisms. IRF4, meanwhile, is generally pro-thermogenic and anti-inflammatory and has profound effects on lipogenesis and lipolysis. Finally, new data are emerging on the role of other IRF family members in metabolic homeostasis. Taken together, data indicate that IRFs serve as critical yet underappreciated integrators of metabolic and inflammatory stress.
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Affiliation(s)
- Zunair Ahmad
- School of Medicine, Royal College of Surgeons in Ireland, Medical University of Bahrain, Busaiteen, Bahrain
| | - Wahab Kahloan
- AdventHealth Orlando Family Medicine, Orlando, FL, USA
| | - Evan D Rosen
- Division of Endocrinology, Diabetes, and Metabolism, Beth Israel Deaconess Medical Center, Boston, MA, USA.
- Harvard Medical School, Boston, MA, USA.
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2
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Kale MB, Bhondge HM, Wankhede NL, Shende PV, Thanekaer RP, Aglawe MM, Rahangdale SR, Taksande BG, Pandit SB, Upaganlawar AB, Umekar MJ, Kopalli SR, Koppula S. Navigating the intersection: Diabetes and Alzheimer's intertwined relationship. Ageing Res Rev 2024; 100:102415. [PMID: 39002642 DOI: 10.1016/j.arr.2024.102415] [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] [Received: 06/14/2024] [Revised: 07/06/2024] [Accepted: 07/06/2024] [Indexed: 07/15/2024]
Abstract
Alzheimer's disease (AD) and Diabetes mellitus (DM) exhibit comparable pathophysiological pathways. Genetic abnormalities in APP, PS-1, and PS-2 are linked to AD, with diagnostic aid from CSF and blood biomarkers. Insulin dysfunction, termed "type 3 diabetes mellitus" in AD, involves altered insulin signalling and neuronal shrinkage. Insulin influences beta-amyloid metabolism, exacerbating neurotoxicity in AD and amyloid production in DM. Both disorders display impaired glucose transporter expression, hastening cognitive decline. Mitochondrial dysfunction and Toll-like receptor 4-mediated inflammation worsen neurodegeneration in both diseases. ApoE4 raises disease risk, especially when coupled with dyslipidemia common in DM. Targeting shared pathways like insulin-degrading enzyme activation and HSP60 holds promise for therapeutic intervention. Recognizing these interconnected mechanisms underscores the imperative for developing tailored treatments addressing the overlapping pathophysiology of AD and DM, offering potential avenues for more effective management of both conditions.
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Affiliation(s)
- Mayur B Kale
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra 441002, India
| | | | - Nitu L Wankhede
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra 441002, India
| | - Prajwali V Shende
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra 441002, India
| | - Rushikesh P Thanekaer
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra 441002, India
| | - Manish M Aglawe
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra 441002, India
| | - Sandip R Rahangdale
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra 441002, India
| | - Brijesh G Taksande
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra 441002, India
| | - Sunil B Pandit
- SNJB's Shriman Sureshdada Jain College of Pharmacy, Neminagar, Chandwad, Nashik, Maharashtra, India
| | - Aman B Upaganlawar
- SNJB's Shriman Sureshdada Jain College of Pharmacy, Neminagar, Chandwad, Nashik, Maharashtra, India
| | - Milind J Umekar
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra 441002, India
| | - Spandana Rajendra Kopalli
- Department of Bioscience and Biotechnology, Sejong University, Gwangjin-gu, Seoul 05006, Republic of Korea
| | - Sushruta Koppula
- College of Biomedical and Health Sciences, Konkuk University, Chungju-Si, Chungcheongbuk Do 27478, Republic of Korea.
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Lobato TB, Manoel R, Pereira ACG, Correa IS, Iser-Bem PN, Santos ESDS, Pereira JNB, de Araújo MJL, Borges JCDO, Pauferro JRB, Diniz VLS, Scervino MVM, Serdan TD, Pithon-Curi TC, Masi LN, Hirabara SM, Curi R, Gorjão R. Insulin resistance in nonobese type 2 diabetic Goto Kakizaki rats is associated with a proinflammatory T lymphocyte profile. FEBS Lett 2024. [PMID: 39095330 DOI: 10.1002/1873-3468.14977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 05/27/2024] [Accepted: 06/01/2024] [Indexed: 08/04/2024]
Abstract
Goto-Kakizaki (GK) rats develop a well-defined insulin resistance (IR) and type 2 diabetes mellitus (T2DM) without presenting obesity. The lymphocyte profile in nonobese diabetic conditions is not yet characterized. Therefore, GK rats were chosen to explore T lymphocyte (TL) dynamics at various stages (21, 60, and 120 days) compared to Wistar rats. GK rats exhibit progressive disruption of glucose regulation, with early glucose intolerance at 21 days and reduced insulin sensitivity at 60 days, confirming IR. Glucose transporter 1 (GLUT1) expression was consistently elevated in GK rats, suggesting heightened TL activation. T-regulatory lymphocyte markers diminished at 21 days. However, GK rats showed increased Th1 markers and reduced Gata-3 expression (crucial for Th2 cell differentiation) at 120 days. These findings underscore an early breakdown of anti-inflammatory mechanisms in GK rats, indicating a proinflammatory TL profile that may worsen chronic inflammation in T2DM.
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Affiliation(s)
- Tiago Bertola Lobato
- Interdisciplinary Post-Graduate Program in Health Sciences, Cruzeiro do Sul University, São Paulo, Brazil
| | - Richelieau Manoel
- Interdisciplinary Post-Graduate Program in Health Sciences, Cruzeiro do Sul University, São Paulo, Brazil
| | - Ana Carolina Gomes Pereira
- Interdisciplinary Post-Graduate Program in Health Sciences, Cruzeiro do Sul University, São Paulo, Brazil
| | - Ilana Souza Correa
- Interdisciplinary Post-Graduate Program in Health Sciences, Cruzeiro do Sul University, São Paulo, Brazil
| | - Patrícia Nancy Iser-Bem
- Interdisciplinary Post-Graduate Program in Health Sciences, Cruzeiro do Sul University, São Paulo, Brazil
| | | | | | | | | | | | | | | | - Tamires Duarte Serdan
- Interdisciplinary Post-Graduate Program in Health Sciences, Cruzeiro do Sul University, São Paulo, Brazil
| | - Tania Cristina Pithon-Curi
- Interdisciplinary Post-Graduate Program in Health Sciences, Cruzeiro do Sul University, São Paulo, Brazil
| | - Laureane Nunes Masi
- Interdisciplinary Post-Graduate Program in Health Sciences, Cruzeiro do Sul University, São Paulo, Brazil
- Department of Physiological Sciences, Center of Biological Sciences, Federal University of Santa Catarina-UFSC, Brazil
| | - Sandro Massao Hirabara
- Interdisciplinary Post-Graduate Program in Health Sciences, Cruzeiro do Sul University, São Paulo, Brazil
| | - Rui Curi
- Interdisciplinary Post-Graduate Program in Health Sciences, Cruzeiro do Sul University, São Paulo, Brazil
- Immunobiological Production Section, Bioindustrial Center, Butantan Institute, São Paulo, Brazil
| | - Renata Gorjão
- Interdisciplinary Post-Graduate Program in Health Sciences, Cruzeiro do Sul University, São Paulo, Brazil
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4
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Rocha CM, Kawamoto D, Martins FH, Bueno MR, Ishikawa KH, Ando-Suguimoto ES, Carlucci AR, Arroteia LS, Casarin RV, Saraiva L, Simionato MRL, Mayer MPA. Experimental Inoculation of Aggregatibacter actinomycetemcomitans and Streptococcus gordonii and Its Impact on Alveolar Bone Loss and Oral and Gut Microbiomes. Int J Mol Sci 2024; 25:8090. [PMID: 39125663 PMCID: PMC11312116 DOI: 10.3390/ijms25158090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/10/2024] [Accepted: 05/17/2024] [Indexed: 08/12/2024] Open
Abstract
Oral bacteria are implicated not only in oral diseases but also in gut dysbiosis and inflammatory conditions throughout the body. The periodontal pathogen Aggregatibacter actinomycetemcomitans (Aa) often occurs in complex oral biofilms with Streptococcus gordonii (Sg), and this interaction might influence the pathogenic potential of this pathogen. This study aims to assess the impact of oral inoculation with Aa, Sg, and their association (Aa+Sg) on alveolar bone loss, oral microbiome, and their potential effects on intestinal health in a murine model. Sg and/or Aa were orally administered to C57Bl/6 mice, three times per week, for 4 weeks. Aa was also injected into the gingiva three times during the initial experimental week. After 30 days, alveolar bone loss, expression of genes related to inflammation and mucosal permeability in the intestine, serum LPS levels, and the composition of oral and intestinal microbiomes were determined. Alveolar bone resorption was detected in Aa, Sg, and Aa+Sg groups, although Aa bone levels did not differ from that of the SHAM-inoculated group. Il-1β expression was upregulated in the Aa group relative to the other infected groups, while Il-6 expression was downregulated in infected groups. Aa or Sg downregulated the expression of tight junction genes Cldn 1, Cldn 2, Ocdn, and Zo-1 whereas infection with Aa+Sg led to their upregulation, except for Cldn 1. Aa was detected in the oral biofilm of the Aa+Sg group but not in the gut. Infections altered oral and gut microbiomes. The oral biofilm of the Aa group showed increased abundance of Gammaproteobacteria, Enterobacterales, and Alloprevotella, while Sg administration enhanced the abundance of Alloprevotella and Rothia. The gut microbiome of infected groups showed reduced abundance of Erysipelotrichaceae. Infection with Aa or Sg disrupts both oral and gut microbiomes, impacting oral and gut homeostasis. While the combination of Aa with Sg promotes Aa survival in the oral cavity, it mitigates the adverse effects of Aa in the gut, suggesting a beneficial role of Sg associations in gut health.
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Affiliation(s)
- Catarina Medeiros Rocha
- Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo 05508-000, SP, Brazil; (C.M.R.); (D.K.); (F.H.M.); (M.R.B.); (K.H.I.); (E.S.A.-S.); (A.R.C.); (M.R.L.S.)
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo 05508-000, SP, Brazil
| | - Dione Kawamoto
- Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo 05508-000, SP, Brazil; (C.M.R.); (D.K.); (F.H.M.); (M.R.B.); (K.H.I.); (E.S.A.-S.); (A.R.C.); (M.R.L.S.)
| | - Fernando Henrique Martins
- Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo 05508-000, SP, Brazil; (C.M.R.); (D.K.); (F.H.M.); (M.R.B.); (K.H.I.); (E.S.A.-S.); (A.R.C.); (M.R.L.S.)
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo 05508-000, SP, Brazil
| | - Manuela Rocha Bueno
- Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo 05508-000, SP, Brazil; (C.M.R.); (D.K.); (F.H.M.); (M.R.B.); (K.H.I.); (E.S.A.-S.); (A.R.C.); (M.R.L.S.)
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo 05508-000, SP, Brazil
- Division of Periodontics, Faculdade São Leopoldo Mandic, São Leopoldo Mandic Research Institute, Campinas 13045-755, SP, Brazil
| | - Karin H. Ishikawa
- Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo 05508-000, SP, Brazil; (C.M.R.); (D.K.); (F.H.M.); (M.R.B.); (K.H.I.); (E.S.A.-S.); (A.R.C.); (M.R.L.S.)
| | - Ellen Sayuri Ando-Suguimoto
- Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo 05508-000, SP, Brazil; (C.M.R.); (D.K.); (F.H.M.); (M.R.B.); (K.H.I.); (E.S.A.-S.); (A.R.C.); (M.R.L.S.)
| | - Aline Ramos Carlucci
- Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo 05508-000, SP, Brazil; (C.M.R.); (D.K.); (F.H.M.); (M.R.B.); (K.H.I.); (E.S.A.-S.); (A.R.C.); (M.R.L.S.)
| | - Leticia Sandoli Arroteia
- Department of Prosthesis and Periodontology, School of Dentistry, University of Campinas, Campinas 13083-875, SP, Brazil; (L.S.A.); (R.V.C.)
| | - Renato V. Casarin
- Department of Prosthesis and Periodontology, School of Dentistry, University of Campinas, Campinas 13083-875, SP, Brazil; (L.S.A.); (R.V.C.)
| | - Luciana Saraiva
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo 05508-000, SP, Brazil
| | - Maria Regina Lorenzetti Simionato
- Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo 05508-000, SP, Brazil; (C.M.R.); (D.K.); (F.H.M.); (M.R.B.); (K.H.I.); (E.S.A.-S.); (A.R.C.); (M.R.L.S.)
| | - Marcia Pinto Alves Mayer
- Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo 05508-000, SP, Brazil; (C.M.R.); (D.K.); (F.H.M.); (M.R.B.); (K.H.I.); (E.S.A.-S.); (A.R.C.); (M.R.L.S.)
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo 05508-000, SP, Brazil
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5
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Eng PC, Phylactou M, Qayum A, Woods C, Lee H, Aziz S, Moore B, Miras AD, Comninos AN, Tan T, Franks S, Dhillo WS, Abbara A. Obesity-Related Hypogonadism in Women. Endocr Rev 2024; 45:171-189. [PMID: 37559411 PMCID: PMC10911953 DOI: 10.1210/endrev/bnad027] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 06/02/2023] [Accepted: 08/07/2023] [Indexed: 08/11/2023]
Abstract
Obesity-related hypogonadotropic hypogonadism is a well-characterized condition in men (termed male obesity-related secondary hypogonadism; MOSH); however, an equivalent condition has not been as clearly described in women. The prevalence of polycystic ovary syndrome (PCOS) is known to increase with obesity, but PCOS is more typically characterized by increased gonadotropin-releasing hormone (GnRH) (and by proxy luteinizing hormone; LH) pulsatility, rather than by the reduced gonadotropin levels observed in MOSH. Notably, LH levels and LH pulse amplitude are reduced with obesity, both in women with and without PCOS, suggesting that an obesity-related secondary hypogonadism may also exist in women akin to MOSH in men. Herein, we examine the evidence for the existence of a putative non-PCOS "female obesity-related secondary hypogonadism" (FOSH). We précis possible underlying mechanisms for the occurrence of hypogonadism in this context and consider how such mechanisms differ from MOSH in men, and from PCOS in women without obesity. In this review, we consider relevant etiological factors that are altered in obesity and that could impact on GnRH pulsatility to ascertain whether they could contribute to obesity-related secondary hypogonadism including: anti-Müllerian hormone, androgen, insulin, fatty acid, adiponectin, and leptin. More precise phenotyping of hypogonadism in women with obesity could provide further validation for non-PCOS FOSH and preface the ability to define/investigate such a condition.
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Affiliation(s)
- Pei Chia Eng
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
- Department of Endocrinology, National University of Singapore, Singapore 117549
| | - Maria Phylactou
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
- Department of Endocrinology, Imperial College Healthcare NHS Trust, London W12 0NN, UK
| | - Ambreen Qayum
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
- Department of Endocrinology, Imperial College Healthcare NHS Trust, London W12 0NN, UK
| | - Casper Woods
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
| | - Hayoung Lee
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
| | - Sara Aziz
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
| | - Benedict Moore
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
| | - Alexander D Miras
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
- Department of Endocrinology, Imperial College Healthcare NHS Trust, London W12 0NN, UK
| | - Alexander N Comninos
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
- Department of Endocrinology, Imperial College Healthcare NHS Trust, London W12 0NN, UK
| | - Tricia Tan
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
- Department of Endocrinology, Imperial College Healthcare NHS Trust, London W12 0NN, UK
| | - Steve Franks
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
- Department of Endocrinology, Imperial College Healthcare NHS Trust, London W12 0NN, UK
| | - Waljit S Dhillo
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
- Department of Endocrinology, Imperial College Healthcare NHS Trust, London W12 0NN, UK
| | - Ali Abbara
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
- Department of Endocrinology, Imperial College Healthcare NHS Trust, London W12 0NN, UK
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Liu J, Zaidi A, Pike CJ. Microglia/macrophage-specific deletion of TLR-4 protects against neural effects of diet-induced obesity. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.13.580189. [PMID: 38405877 PMCID: PMC10888944 DOI: 10.1101/2024.02.13.580189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Obesity is associated with numerous adverse neural effects, including reduced neurogenesis, cognitive impairment, and increased risks for developing Alzheimer's disease (AD) and vascular dementia. Obesity is also characterized by chronic, low-grade inflammation that is implicated in mediating negative consequences body-wide. Toll-like receptor 4 (TLR4) signaling from peripheral macrophages is implicated as an essential regulator of the systemic inflammatory effects of obesity. In the brain, obesity drives chronic neuroinflammation that involves microglial activation, however the contributions of microglia-derived TLR4 signaling to the consequences of obesity are poorly understood. To investigate this issue, we first generated mice that carry an inducible, microglia/macrophage-specific deletion of TLR4 that yields long-term TLR4 knockout only in brain indicating microglial specificity. Next, we analyzed the effects of microglial TLR4 deletion on systemic and neural effects of a 16-week of exposure to control versus obesogenic high-fat diets. In male mice, TLR4 deletion generally yielded limited effects on diet-induced systemic metabolic dysfunction but significantly reduced neuroinflammation and impairments in neurogenesis and cognitive performance. In female mice maintained on obesogenic diet, TLR4 deletion partially protected against weight gain, adiposity, and metabolic impairments. Compared to males, females showed milder diet-induced neural consequences, against which TLR4 deletion was protective. Collectively, these findings demonstrate a central role of microglial TLR4 signaling in mediating the neural effects of obesogenic diet and highlight sexual dimorphic responses to both diet and TLR4.
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Salvi J, Andreoletti P, Audinat E, Balland E, Ben Fradj S, Cherkaoui-Malki M, Heurtaux T, Liénard F, Nédélec E, Rovère C, Savary S, Véjux A, Trompier D, Benani A. Microgliosis: a double-edged sword in the control of food intake. FEBS J 2024; 291:615-631. [PMID: 35880408 DOI: 10.1111/febs.16583] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 06/30/2022] [Accepted: 07/25/2022] [Indexed: 02/16/2024]
Abstract
Maintaining energy balance is essential for survival and health. This physiological function is controlled by the brain, which adapts food intake to energy needs. Indeed, the brain constantly receives a multitude of biological signals that are derived from digested foods or that originate from the gastrointestinal tract, energy stores (liver and adipose tissues) and other metabolically active organs (muscles). These signals, which include circulating nutrients, hormones and neuronal inputs from the periphery, collectively provide information on the overall energy status of the body. In the brain, several neuronal populations can specifically detect these signals. Nutrient-sensing neurons are found in discrete brain areas and are highly enriched in the hypothalamus. In turn, specialized brain circuits coordinate homeostatic responses acting mainly on appetite, peripheral metabolism, activity and arousal. Accumulating evidence shows that hypothalamic microglial cells located at the vicinity of these circuits can influence the brain control of energy balance. However, microglial cells could have opposite effects on energy balance, that is homeostatic or detrimental, and the conditions for this shift are not totally understood yet. One hypothesis relies on the extent of microglial activation, and nutritional lipids can considerably change it.
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Affiliation(s)
- Juliette Salvi
- CSGA, Centre des Sciences du Goût et de l'Alimentation, CNRS, INRAE, Institut Agro Dijon, Université Bourgogne Franche-Comté, Dijon, France
| | - Pierre Andreoletti
- Laboratoire Bio-PeroxIL, Université Bourgogne Franche-Comté, Dijon, France
| | - Etienne Audinat
- IGF, Université de Montpellier, CNRS, Inserm, Montpellier, France
| | - Eglantine Balland
- Department of Nutrition, Dietetics and Food, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Notting Hill, Australia
| | - Selma Ben Fradj
- IPMC, Institut de Pharmacologie Moléculaire et Cellulaire, CNRS, Université Côte d'Azur, Valbonne, France
| | | | - Tony Heurtaux
- Luxembourg Center of Neuropathology (LCNP), Dudelange, Luxembourg
- Department of Life Sciences and Medicine, University of Luxembourg, Belvaux, Luxembourg
| | - Fabienne Liénard
- CSGA, Centre des Sciences du Goût et de l'Alimentation, CNRS, INRAE, Institut Agro Dijon, Université Bourgogne Franche-Comté, Dijon, France
| | - Emmanuelle Nédélec
- CSGA, Centre des Sciences du Goût et de l'Alimentation, CNRS, INRAE, Institut Agro Dijon, Université Bourgogne Franche-Comté, Dijon, France
| | - Carole Rovère
- IPMC, Institut de Pharmacologie Moléculaire et Cellulaire, CNRS, Université Côte d'Azur, Valbonne, France
| | - Stéphane Savary
- Laboratoire Bio-PeroxIL, Université Bourgogne Franche-Comté, Dijon, France
| | - Anne Véjux
- Laboratoire Bio-PeroxIL, Université Bourgogne Franche-Comté, Dijon, France
| | - Doriane Trompier
- Laboratoire Bio-PeroxIL, Université Bourgogne Franche-Comté, Dijon, France
| | - Alexandre Benani
- CSGA, Centre des Sciences du Goût et de l'Alimentation, CNRS, INRAE, Institut Agro Dijon, Université Bourgogne Franche-Comté, Dijon, France
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8
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Yazıcı D, Demir SÇ, Sezer H. Insulin Resistance, Obesity, and Lipotoxicity. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1460:391-430. [PMID: 39287860 DOI: 10.1007/978-3-031-63657-8_14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/19/2024]
Abstract
Lipotoxicity, originally used to describe the destructive effects of excess fat accumulation on glucose metabolism, causes functional impairments in several metabolic pathways, both in adipose tissue and peripheral organs, like liver, heart, pancreas, and muscle. Ectopic lipid accumulation in the kidneys, liver, and heart has important clinical counterparts like diabetic nephropathy in type 2 diabetes mellitus, obesity-related glomerulopathy, nonalcoholic fatty liver disease, and cardiomyopathy. Insulin resistance due to lipotoxicity indirectly lead to reproductive system disorders, like polycystic ovary syndrome. Lipotoxicity has roles in insulin resistance and pancreatic beta-cell dysfunction. Increased circulating levels of lipids and the metabolic alterations in fatty acid utilization and intracellular signaling have been related to insulin resistance in muscle and liver. Different pathways, like novel protein kinase c pathways and the JNK-1 pathway, are involved as the mechanisms of how lipotoxicity leads to insulin resistance in nonadipose tissue organs, such as liver and muscle. Mitochondrial dysfunction plays a role in the pathogenesis of insulin resistance. Endoplasmic reticulum stress, through mainly increased oxidative stress, also plays an important role in the etiology of insulin resistance, especially seen in non-alcoholic fatty liver disease. Visceral adiposity and insulin resistance both increase the cardiometabolic risk, and lipotoxicity seems to play a crucial role in the pathophysiology of these associations.
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Affiliation(s)
- Dilek Yazıcı
- Koç University Medical School, Section of Endocrinology and Metabolism, Koç University Hospital, Topkapi, Istanbul, Turkey.
| | - Selin Çakmak Demir
- Koç University Medical School, Section of Endocrinology and Metabolism, Koç University Hospital, Topkapi, Istanbul, Turkey
| | - Havva Sezer
- Koç University Medical School, Section of Endocrinology and Metabolism, Koç University Hospital, Topkapi, Istanbul, Turkey
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9
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McCall KD, Walter D, Patton A, Thuma JR, Courreges MC, Palczewski G, Goetz DJ, Bergmeier S, Schwartz FL. Anti-Inflammatory and Therapeutic Effects of a Novel Small-Molecule Inhibitor of Inflammation in a Male C57BL/6J Mouse Model of Obesity-Induced NAFLD/MAFLD. J Inflamm Res 2023; 16:5339-5366. [PMID: 38026235 PMCID: PMC10658948 DOI: 10.2147/jir.s413565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 10/31/2023] [Indexed: 12/01/2023] Open
Abstract
Purpose Non-alcoholic fatty liver disease (NAFLD), recently renamed metabolic (dysfunction) associated fatty liver disease (MAFLD), is the most common chronic liver disease in the United States. Presently, there is an intense and ongoing effort to identify and develop novel therapeutics for this disease. In this study, we explored the anti-inflammatory activity of a new compound, termed IOI-214, and its therapeutic potential to ameliorate NAFLD/MAFLD in male C57BL/6J mice fed a high fat (HF) diet. Methods Murine macrophages and hepatocytes in culture were treated with lipopolysaccharide (LPS) ± IOI-214 or DMSO (vehicle), and RT-qPCR analyses of inflammatory cytokine gene expression were used to assess IOI-214's anti-inflammatory properties in vitro. Male C57BL/6J mice were also placed on a HF diet and treated once daily with IOI-214 or DMSO for 16 weeks. Tissues were collected and analyzed to determine the effects of IOI-214 on HF diet-induced NAFL D/MAFLD. Measurements such as weight, blood glucose, serum cholesterol, liver/serum triglyceride, insulin, and glucose tolerance tests, ELISAs, metabolomics, Western blots, histology, gut microbiome, and serum LPS binding protein analyses were conducted. Results IOI-214 inhibited LPS-induced inflammation in macrophages and hepatocytes in culture and abrogated HF diet-induced mesenteric fat accumulation, hepatic inflammation and steatosis/hepatocellular ballooning, as well as fasting hyperglycemia without affecting insulin resistance or fasting insulin, cholesterol or TG levels despite overall obesity in vivo in male C57BL/6J mice. IOI-214 also decreased systemic inflammation in vivo and improved gut microbiota dysbiosis and leaky gut. Conclusion Combined, these data indicate that IOI-214 works at multiple levels in parallel to inhibit the inflammation that drives HF diet-induced NAFLD/MAFLD, suggesting that it may have therapeutic potential for NAFLD/MAFLD.
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Affiliation(s)
- Kelly D McCall
- Molecular and Cellular Biology Program, Ohio University College of Arts & Sciences, Athens, OH, USA
- Department of Biological Sciences, Ohio University College of Arts & Sciences, Athens, OH, USA
- Department of Specialty Medicine, Ohio University Heritage College of Osteopathic Medicine, Athens, OH, USA
- Department of Biomedical Sciences, Ohio University Heritage College of Osteopathic Medicine, Athens, OH, USA
- Diabetes Institute, Ohio University Heritage College of Osteopathic Medicine, Athens, OH, USA
- Biomedical Engineering Program, Ohio University Russ College of Engineering and Technology, Athens, OH, USA
| | - Debra Walter
- Molecular and Cellular Biology Program, Ohio University College of Arts & Sciences, Athens, OH, USA
- Department of Biological Sciences, Ohio University College of Arts & Sciences, Athens, OH, USA
| | - Ashley Patton
- Molecular and Cellular Biology Program, Ohio University College of Arts & Sciences, Athens, OH, USA
- Department of Biological Sciences, Ohio University College of Arts & Sciences, Athens, OH, USA
| | - Jean R Thuma
- Department of Specialty Medicine, Ohio University Heritage College of Osteopathic Medicine, Athens, OH, USA
| | - Maria C Courreges
- Department of Specialty Medicine, Ohio University Heritage College of Osteopathic Medicine, Athens, OH, USA
| | | | - Douglas J Goetz
- Molecular and Cellular Biology Program, Ohio University College of Arts & Sciences, Athens, OH, USA
- Biomedical Engineering Program, Ohio University Russ College of Engineering and Technology, Athens, OH, USA
- Department of Chemical & Biomolecular Engineering, Ohio University Russ College of Engineering and Technology, Athens, OH, USA
| | - Stephen Bergmeier
- Molecular and Cellular Biology Program, Ohio University College of Arts & Sciences, Athens, OH, USA
- Biomedical Engineering Program, Ohio University Russ College of Engineering and Technology, Athens, OH, USA
- Department of Chemistry & Biochemistry, Ohio University College of Arts & Sciences, Athens, OH, USA
| | - Frank L Schwartz
- Department of Specialty Medicine, Ohio University Heritage College of Osteopathic Medicine, Athens, OH, USA
- Diabetes Institute, Ohio University Heritage College of Osteopathic Medicine, Athens, OH, USA
- Biomedical Engineering Program, Ohio University Russ College of Engineering and Technology, Athens, OH, USA
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10
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Nahmias-Blank D, Maimon O, Meirovitz A, Sheva K, Peretz-Yablonski T, Elkin M. Excess body weight and postmenopausal breast cancer: Emerging molecular mechanisms and perspectives. Semin Cancer Biol 2023; 96:26-35. [PMID: 37739109 DOI: 10.1016/j.semcancer.2023.09.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 09/24/2023]
Abstract
Postmenopausal, obese women have a significantly higher risk of developing estrogen receptor-positive (ER+) breast tumors, that are resistant to therapies and are associated with higher recurrence and death rates. The global prevalence of overweight/obese women has reached alarming proportions and with postmenopausal ER+ breast carcinoma (BC) having the highest incidence among the three obesity-related cancers in females (i.e., breast, endometrial and ovarian), this is of significant concern. Elucidation of the precise molecular mechanisms underlying the pro-cancerous action of obesity in ER+BC is therefore critical for disease prevention and novel treatment initiatives. Interestingly, accumulating data has shown opposing relationships between obesity and cancer in either pre- or post-menopausal women. Excess body weight is associated with an increased risk of breast cancer in postmenopausal women and a decreased risk in pre-menopausal women. Moreover, excess adiposity during early life appears to be protective against postmenopausal breast cancer, including both ER+ and ER negative BC subtypes. Overall, estrogen-dependent mechanisms have been implicated as the main driving force in obesity-related breast tumorigenesis. In the present review we discuss the epidemiologic and mechanistic aspects of association between obesity and breast tumors after menopause, mainly in the context of hormone dependency. Molecular and cellular events underlying this association present as potential avenues for both therapeutic intervention as well as the prevention of BC-promoting processes linked to excess adiposity, which is proving to be vital in an increasingly obese global population.
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Affiliation(s)
- Daniela Nahmias-Blank
- Sharett Institute of Oncology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Ofra Maimon
- Sharett Institute of Oncology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Amichay Meirovitz
- Legacy Heritage Oncology Center and Dr. Larry Norton Institute, Soroka University Medical Center, Be'er Sheva 84101, Israel
| | - Kim Sheva
- Legacy Heritage Oncology Center and Dr. Larry Norton Institute, Soroka University Medical Center, Be'er Sheva 84101, Israel
| | - Tamar Peretz-Yablonski
- Sharett Institute of Oncology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel; Hebrew University Medical School, Jerusalem 91120, Israel
| | - Michael Elkin
- Sharett Institute of Oncology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel; Hebrew University Medical School, Jerusalem 91120, Israel.
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11
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Kim DY, Park JY, Gee HY. Lactobacillus plantarum ameliorates NASH-related inflammation by upregulating L-arginine production. Exp Mol Med 2023; 55:2332-2345. [PMID: 37907736 PMCID: PMC10689779 DOI: 10.1038/s12276-023-01102-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 07/16/2023] [Accepted: 08/02/2023] [Indexed: 11/02/2023] Open
Abstract
Lactobacillus is a probiotic with therapeutic potential for several diseases, including liver disease. However, the therapeutic effect of L. plantarum against nonalcoholic steatohepatitis (NASH) and its underlying mechanisms remain unelucidated. Therefore, we delineated the L. plantarum-mediated NASH regulation in a mouse model to understand its therapeutic effect. We used a choline-deficient high-fat diet (CD-HFD)-induced murine model that recapitulated the critical features of human metabolic syndrome and investigated the effect of L. plantarum on NASH pathogenesis using transcriptomic, metagenomic, and immunohistochemistry analyses. Validation experiments were performed using liver organoids and a murine model fed a methionine-choline-deficient (MCD) diet. L. plantarum treatment in mice significantly decreased liver inflammation and improved metabolic phenotypes, such as insulin tolerance and the hepatic lipid content, compared with those in the vehicle group. RNA-sequencing analysis revealed that L. plantarum treatment significantly downregulated inflammation-related pathways. Shotgun metagenomic analysis revealed that L-arginine biosynthesis-related microbial genes were significantly upregulated in the L. plantarum group. We also confirmed the elevated arginine levels in the serum of the L. plantarum group. We further used liver organoids and mice fed an MCD diet to demonstrate that L-arginine alone was sufficient to alleviate liver inflammation. Our data revealed a novel and counterintuitive therapeutic effect of L. plantarum on alleviating NASH-related liver inflammation by increasing circulating L-arginine.
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Affiliation(s)
- Dong Yun Kim
- Department of Pharmacology, Yonsei University College of Medicine, Seoul, Republic of South Korea
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of South Korea
- Yonsei Liver Center, Severance Hospital, Seoul, Republic of South Korea
| | - Jun Yong Park
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of South Korea.
- Yonsei Liver Center, Severance Hospital, Seoul, Republic of South Korea.
| | - Heon Yung Gee
- Department of Pharmacology, Yonsei University College of Medicine, Seoul, Republic of South Korea.
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Republic of South Korea.
- Woo Choo Lee Institute for Precision Drug Development, Seoul, Republic of South Korea.
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12
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Emmons H, Wallace C, Fordahl S. Interleukin-6 and tumor necrosis factor-α attenuate dopamine release in mice fed a high-fat diet, but not medium or low-fat diets. Nutr Neurosci 2023; 26:864-874. [PMID: 35900193 PMCID: PMC9883593 DOI: 10.1080/1028415x.2022.2103613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Chronic low-grade inflammation is associated with a state of diet-induced obesity that impacts systemic tissues and can cross the blood-brain barrier to act directly on the brain. The extent to which pro-inflammatory cytokines released in these conditions affect dopamine presynaptic neurotransmission has not been previously investigated. The purpose of this study was to examine how dopamine terminals are affected by pro-inflammatory cytokines, and to determine if dietary fat consumption potentiates cytokine effects on dopamine release and reuptake rate in the nucleus accumbens (NAc). Male and female C57BL/6J mice were fed high, medium, or low-fat diets (60%, 30%, or 10% total kcals from fat, respectively) for six weeks. Fast scan cyclic voltammetry (FSCV) was used to measure dopamine release and reuptake rate in the NAc core from ex vivo coronal brain slices. Electrically evoked dopamine release and the maximal rate of dopamine reuptake (Vmax) were significantly lower in mice fed the 30% and 60% high-fat diets compared to the 10% low-fat group (p < 0.05). IL-6 5 or 10 nM or TNFα 30 or 300 nM was added to artificial cerebrospinal fluid (aCSF) bathed over brain slices during FSCV. No effect on dopamine release or Vmax was observed with lower concentrations. However, 10 nM IL-6 and 300 nM TNFα significantly reduced dopamine release in the 60% fat group (p < 0.05). No effect of added cytokine was observed on Vmax. Overall, these data provide evidence that dietary fat increases neural responsiveness to cytokines, which may help inform comorbidities between diet-induced obesity and depression or other mood disorders.
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Affiliation(s)
- H.A. Emmons
- UNC Greensboro, Department of Nutrition, Greensboro NC
| | - C.W. Wallace
- UNC Greensboro, Department of Nutrition, Greensboro NC
- Wake Forest School of Medicine, Physiology and Pharmacology, Winston-Salem NC
| | - S.C. Fordahl
- UNC Greensboro, Department of Nutrition, Greensboro NC
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Zhu Q, Qian B, Xue K, Guo H, Liang R, Wu J, Wu Q, Zhou G. TT Genotype of TLR4 rs1928295 Is a Risk Factor of Overweight/Obesity in Han Chinese Children Aged 7-12 Years and Can Interact with Dietary Patterns to Affect the Incidence of Central Obesity and Lipid Profile, Systolic Blood Pressure Levels. Nutrients 2023; 15:3441. [PMID: 37571378 PMCID: PMC10420634 DOI: 10.3390/nu15153441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/01/2023] [Accepted: 08/02/2023] [Indexed: 08/13/2023] Open
Abstract
Previous studies have found that TLR4 rs1928295 polymorphism is associated with Body Mass Index in European and American Indian adults. This study evaluates the relationship between this locus polymorphism, obesity-related parameters and dietary patterns in Chinese Han Children. A total of 798 children aged 7-12 years were included in this cross-sectional study. An improved Multiple Ligase Detection Reaction was used for genotyping. Dietary patterns were identified by principal component factor analysis. The overweight/obesity rate of the TT genotype was greater than those of the CC/CT genotype (p = 0.032 and 0.048 in boys and girls, respectively). Boys of the TT genotype could interact with protein and cholesterol intake to increase low density lipoprotein (LDL) levels (p = 0.02, 0.015, respectively), while girls of the TT genotype could interact with total energy intake to increase triglyceride (TG) (p = 0.018) levels. Boys predisposed to a healthy balance dietary pattern (HBDP) and girls predisposed to an egg/fruit/fish dietary pattern (EFDP) were significantly associated with lower rates of central obesity (p = 0.045, 0.028). Boys carrying the TT genotype and predisposed to animal food dietary pattern (AFDP) had a higher level of low-density lipoprotein (p = 0.017) and systolic pressure (p = 0.044). Our results indicated that the TT genotype of TLR4 rs1928295 is a potential risk factor for obesity in Chinese Han children and is associated with dietary patterns.
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Affiliation(s)
- Qi Zhu
- School of Public Health, Nantong University, Nantong 226019, China; (Q.Z.); (Q.W.); (G.Z.)
- Department of Medicine, Xinglin College, Nantong University, Nantong 226019, China
| | - Ben Qian
- School of Public Health, Nantong University, Nantong 226019, China; (Q.Z.); (Q.W.); (G.Z.)
| | - Kun Xue
- Department of Nutrition, School of Public Health, Fudan University, Shanghai 200032, China;
| | - Hongwei Guo
- Department of Nutrition, School of Public Health, Fudan University, Shanghai 200032, China;
| | - Rui Liang
- School of Public Health, Nantong University, Nantong 226019, China; (Q.Z.); (Q.W.); (G.Z.)
| | - Jinlong Wu
- School of Public Health, Nantong University, Nantong 226019, China; (Q.Z.); (Q.W.); (G.Z.)
| | - Qisu Wu
- School of Public Health, Nantong University, Nantong 226019, China; (Q.Z.); (Q.W.); (G.Z.)
| | - Geyi Zhou
- School of Public Health, Nantong University, Nantong 226019, China; (Q.Z.); (Q.W.); (G.Z.)
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Egalini F, Guardamagna O, Gaggero G, Varaldo E, Giannone B, Beccuti G, Benso A, Broglio F. The Effects of Omega 3 and Omega 6 Fatty Acids on Glucose Metabolism: An Updated Review. Nutrients 2023; 15:2672. [PMID: 37375575 PMCID: PMC10301273 DOI: 10.3390/nu15122672] [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] [Received: 05/05/2023] [Revised: 06/02/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
Massive changes have occurred in our diet. A growing consumption of vegetal oils rich in omega-6 (ω-6) and a depletion of omega-3 (ω-3) fatty acids (FAs) in our food has led to an imbalance between ω-3 and ω-6. In particular, eicosapentaenoic (EPA)/arachidonic acid (AA) ratio seems to be an indicator of this derangement, whose reduction is associated to the development of metabolic diseases, such as diabetes mellitus. Our aim was therefore to investigate the literature on the effects of ω-3 and ω-6 FAs on glucose metabolism. We discussed emerging evidence from pre-clinical studies and from clinical trials. Notably, conflicting results emerged. Source of ω-3, sample size, ethnicity, study duration and food cooking method may be responsible for the lack of univocal results. High EPA/AA ratio seems to be a promising indicator of better glycemic control and reduced inflammation. On the other hand, linoleic acid (LA) appears to be also associated to a minor incidence of type 2 diabetes mellitus, although it is still not clear if the outcome is related to a reduced production of AA or to its intrinsic effect. More data derived from multicenter, prospective randomized clinical trials are needed.
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Affiliation(s)
- Filippo Egalini
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, 10126 Turin, Italy (G.B.)
| | - Ornella Guardamagna
- Paediatric Endocrinology, Department of Public Health and Paediatric Sciences, University of Turin, 10126 Turin, Italy
| | - Giulia Gaggero
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, 10126 Turin, Italy (G.B.)
| | - Emanuele Varaldo
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, 10126 Turin, Italy (G.B.)
| | - Beatrice Giannone
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, 10126 Turin, Italy (G.B.)
| | - Guglielmo Beccuti
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, 10126 Turin, Italy (G.B.)
| | - Andrea Benso
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, 10126 Turin, Italy (G.B.)
| | - Fabio Broglio
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, 10126 Turin, Italy (G.B.)
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15
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Suren Garg S, Kushwaha K, Dubey R, Gupta J. Association between obesity, inflammation and insulin resistance: Insights into signaling pathways and therapeutic interventions. Diabetes Res Clin Pract 2023; 200:110691. [PMID: 37150407 DOI: 10.1016/j.diabres.2023.110691] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 04/18/2023] [Accepted: 05/02/2023] [Indexed: 05/09/2023]
Abstract
Obesity, a metabolic disorder, is becoming a worldwide epidemic that predominantly increases the risk for various diseases including metabolic inflammation, insulin resistance, and cardiovascular diseases. However, the mechanisms that link obesity with other metabolic diseases are not completely understood. In obesity, various inflammatory pathways that cause inflammation in adipose tissue of an obese individual become activated and exacerbate the disease. Obesity-induced low-grade metabolic inflammation perturbates the insulin signaling pathway and leads to insulin resistance. Researchers have identified several pathways that link the impairment of insulin resistance through obesity-induced inflammation like activation of Nuclear factor kappa B (NF-κB), suppressor of cytokine signaling (SOCS) proteins, cJun-N-terminal Kinase (JNK), Wingless-related integration site (Wnt), and Toll-like receptor (TLR) signaling pathways. In this review article, the published studies have been reviewed to identify the potential and influential role of different signaling pathways in the pathogenesis of obesity-induced metabolic inflammation and insulin resistance along with the discussion on potential therapeutic strategies. Therapies targeting these signaling pathways show improvements in metabolic diseases associated with obesity, but require further testing and confirmation through clinical trials.
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Affiliation(s)
- Sourbh Suren Garg
- Department of Biochemistry, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, India
| | - Kriti Kushwaha
- Department of Biotechnology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, India
| | - Rupal Dubey
- Department of Medical Laboratory Sciences, School of Allied Medical Sciences, Lovely Professional University, Phagwara, Punjab, India
| | - Jeena Gupta
- Department of Biochemistry, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, India
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Li S, Zheng J, He J, Liu H, Huang Y, Huang L, Wang K, Zhao X, Feng B, Che L, Fang Z, Li J, Xu S, Lin Y, Jiang X, Hua L, Zhuo Y, Wu D. Dietary fiber during gestation improves lactational feed intake of sows by modulating gut microbiota. J Anim Sci Biotechnol 2023; 14:65. [PMID: 37143119 PMCID: PMC10161572 DOI: 10.1186/s40104-023-00870-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 03/14/2023] [Indexed: 05/06/2023] Open
Abstract
BACKGROUND The feed intake of sows during lactation is often lower than their needs. High-fiber feed is usually used during gestation to increase the voluntary feed intake of sows during lactation. However, the mechanism underlying the effect of bulky diets on the appetites of sows during lactation have not been fully clarified. The current study was conducted to determine whether a high-fiber diet during gestation improves lactational feed intake (LFI) of sows by modulating gut microbiota. METHODS We selected an appropriate high-fiber diet during gestation and utilized the fecal microbial transplantation (FMT) method to conduct research on the role of the gut microbiota in feed intake regulation of sows during lactation, as follows: high-fiber (HF) diet during gestation (n = 23), low-fiber (LF) diet during gestation (n = 23), and low-fiber diet + HF-FMT (LFM) during gestation (n = 23). RESULTS Compared with the LF, sows in the HF and LFM groups had a higher LFI, while the sows also had higher peptide tyrosine tyrosine and glucagon-like peptide 1 on d 110 of gestation (G110 d). The litter weight gain of piglets during lactation and weaning weight of piglets from LFM group were higher than LF group. Sows given a HF diet had lower Proteobacteria, especially Escherichia-Shigella, on G110 d and higher Lactobacillus, especially Lactobacillus_mucosae_LM1 and Lactobacillus_amylovorus, on d 7 of lactation (L7 d). The abundance of Escherichia-Shigella was reduced by HF-FMT in numerically compared with the LF. In addition, HF and HF-FMT both decreased the perinatal concentrations of proinflammatory factors, such as endotoxin (ET), lipocalin-2 (LCN-2), tumor necrosis factor-α (TNF-α), and interleukin-1β (IL-1β). The concentration of ET and LCN-2 and the abundance of Proteobacteria and Escherichia-Shigella were negatively correlated with the LFI of sows. CONCLUSION The high abundance of Proteobacteria, especially Escherichia-Shigella of LF sows in late gestation, led to increased endotoxin levels, which result in inflammatory responses and adverse effects on the LFI of sows. Adding HF during gestation reverses this process by increasing the abundance of Lactobacillus, especially Lactobacillus_mucosae_LM1 and Lactobacillus_amylovorus.
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Affiliation(s)
- Shuang Li
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Jie Zheng
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Jiaqi He
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Hao Liu
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Yingyan Huang
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Liansu Huang
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Ke Wang
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Xilun Zhao
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Bin Feng
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Lianqiang Che
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Zhengfeng Fang
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Jian Li
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Shengyu Xu
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Yan Lin
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Xuemei Jiang
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Lun Hua
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Yong Zhuo
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China.
| | - De Wu
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, No. 211, Huimin Road, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China.
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Ağagündüz D, Icer MA, Yesildemir O, Koçak T, Kocyigit E, Capasso R. The roles of dietary lipids and lipidomics in gut-brain axis in type 2 diabetes mellitus. J Transl Med 2023; 21:240. [PMID: 37009872 PMCID: PMC10068184 DOI: 10.1186/s12967-023-04088-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 03/25/2023] [Indexed: 04/04/2023] Open
Abstract
Type 2 diabetes mellitus (T2DM), one of the main types of Noncommunicable diseases (NCDs), is a systemic inflammatory disease characterized by dysfunctional pancreatic β-cells and/or peripheral insulin resistance, resulting in impaired glucose and lipid metabolism. Genetic, metabolic, multiple lifestyle, and sociodemographic factors are known as related to high T2DM risk. Dietary lipids and lipid metabolism are significant metabolic modulators in T2DM and T2DM-related complications. Besides, accumulated evidence suggests that altered gut microbiota which plays an important role in the metabolic health of the host contributes significantly to T2DM involving impaired or improved glucose and lipid metabolism. At this point, dietary lipids may affect host physiology and health via interaction with the gut microbiota. Besides, increasing evidence in the literature suggests that lipidomics as novel parameters detected with holistic analytical techniques have important roles in the pathogenesis and progression of T2DM, through various mechanisms of action including gut-brain axis modulation. A better understanding of the roles of some nutrients and lipidomics in T2DM through gut microbiota interactions will help develop new strategies for the prevention and treatment of T2DM. However, this issue has not yet been entirely discussed in the literature. The present review provides up-to-date knowledge on the roles of dietary lipids and lipidomics in gut-brain axis in T2DM and some nutritional strategies in T2DM considering lipids- lipidomics and gut microbiota interactions are given.
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Affiliation(s)
- Duygu Ağagündüz
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Gazi University, 06490, Ankara, Turkey.
| | - Mehmet Arif Icer
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Amasya University, 05100, Amasya, Turkey
| | - Ozge Yesildemir
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Bursa Uludag University, 16059, Bursa, Turkey
| | - Tevfik Koçak
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Gazi University, 06490, Ankara, Turkey
| | - Emine Kocyigit
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Ordu University, 52200, Ordu, Turkey
| | - Raffaele Capasso
- Department of Agricultural Sciences, University of Naples Federico II, Portici, 80055, Naples, Italy.
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Singh S, Sharma P, Sarma DK, Kumawat M, Tiwari R, Verma V, Nagpal R, Kumar M. Implication of Obesity and Gut Microbiome Dysbiosis in the Etiology of Colorectal Cancer. Cancers (Basel) 2023; 15:1913. [PMID: 36980799 PMCID: PMC10047102 DOI: 10.3390/cancers15061913] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/12/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
The complexity and variety of gut microbiomes within and among individuals have been extensively studied in recent years in connection to human health and diseases. Our growing understanding of the bidirectional communication between metabolic diseases and the gut microbiome has also highlighted the significance of gut microbiome dysbiosis in the genesis and development of obesity-related cancers. Therefore, it is crucial to comprehend the possible role of the gut microbiota in the crosstalk between obesity and colorectal cancer (CRC). Through the induction of gut microbial dysbiosis, gut epithelial barrier impairment, metabolomic dysregulation, chronic inflammation, or dysregulation in energy harvesting, obesity may promote the development of colorectal tumors. It is well known that strategies for cancer prevention and treatment are most effective when combined with a healthy diet, physical activity, and active lifestyle choices. Recent studies also suggest that an improved understanding of the complex linkages between the gut microbiome and various cancers as well as metabolic diseases can potentially improve cancer treatments and overall outcomes. In this context, we herein review and summarize the clinical and experimental evidence supporting the functional role of the gut microbiome in the pathogenesis and progression of CRC concerning obesity and its metabolic correlates, which may pave the way for the development of novel prognostic tools for CRC prevention. Therapeutic approaches for restoring the microbiome homeostasis in conjunction with cancer treatments are also discussed herein.
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Affiliation(s)
- Samradhi Singh
- Indian Council of Medical Research-National Institute for Research in Environmental Health, Bhopal 462030, India
| | - Poonam Sharma
- Indian Council of Medical Research-National Institute for Research in Environmental Health, Bhopal 462030, India
| | - Devojit Kumar Sarma
- Indian Council of Medical Research-National Institute for Research in Environmental Health, Bhopal 462030, India
| | - Manoj Kumawat
- Indian Council of Medical Research-National Institute for Research in Environmental Health, Bhopal 462030, India
| | - Rajnarayan Tiwari
- Indian Council of Medical Research-National Institute for Research in Environmental Health, Bhopal 462030, India
| | - Vinod Verma
- Stem Cell Research Centre, Sanjay Gandhi Post-Graduate Institute of Medical Sciences, Lucknow 226014, India
| | - Ravinder Nagpal
- Department of Nutrition and Integrative Physiology, Florida State University, Tallahassee, FL 32302, USA
| | - Manoj Kumar
- Indian Council of Medical Research-National Institute for Research in Environmental Health, Bhopal 462030, India
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Latteri S, Sofia M, Puleo S, Di Vincenzo A, Cinti S, Castorina S. Mechanisms linking bariatric surgery to adipose tissue, glucose metabolism, fatty liver disease and gut microbiota. Langenbecks Arch Surg 2023; 408:101. [PMID: 36826628 PMCID: PMC9957865 DOI: 10.1007/s00423-023-02821-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 01/25/2023] [Indexed: 02/25/2023]
Abstract
PURPOSE In the last 20 years, bariatric surgery has achieved an important role in translational and clinical research because of obesity comorbidities. Initially, a tool to lose weight, bariatric surgery now has been shown to be involved in several metabolic pathways. METHODS We conducted a narrative review discussing the underlying mechanisms that could explain the impact of bariatric surgery and the relationship between obesity and adipose tissue, T2D, gut microbiota, and NAFLD. RESULTS Bariatric surgery has an impact in the relation between obesity and type 2 diabetes, but in addition it induces the white-to-brown adipocyte trans-differentiation, by enhancing thermogenesis. Another issue is the connection of bariatric surgery with the gut microbiota and its role in the complex mechanism underlying weight gain. CONCLUSION Bariatric surgery modifies gut microbiota, and these modifications influence lipid metabolism, leading to improvement of non-alcoholic fatty liver disease.
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Affiliation(s)
- Saverio Latteri
- Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", University of Catania, Catania, Italy
| | - Maria Sofia
- Department of General Surgery, Cannizzaro Hospital, Via Messina 829, 95126, Catania, Italy.
| | - Stefano Puleo
- Mediterranean Foundation "GB Morgagni", Catania, Italy
| | - Angelica Di Vincenzo
- Department of Experimental and Clinical Medicine, Center of Obesity, Marche Polytechnic University, Via Tronto 10A, 60020, Ancona, Italy
| | - Saverio Cinti
- Department of Experimental and Clinical Medicine, Center of Obesity, Marche Polytechnic University, Via Tronto 10A, 60020, Ancona, Italy
| | - Sergio Castorina
- Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", University of Catania, Catania, Italy
- Mediterranean Foundation "GB Morgagni", Catania, Italy
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Su L, Zeng Y, Li G, Chen J, Chen X. Quercetin improves high-fat diet-induced obesity by modulating gut microbiota and metabolites in C57BL/6J mice. Phytother Res 2022; 36:4558-4572. [PMID: 35906097 DOI: 10.1002/ptr.7575] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 07/09/2022] [Accepted: 07/12/2022] [Indexed: 12/13/2022]
Abstract
High-fat diet-induced obesity is characterized by low-grade inflammation, which has been linked to gut microbiota dysbiosis. We hypothesized that quercetin supplementation would alter gut microbiota and reduce inflammation in obese mice. Male C57BL/6J mice, 4 weeks of age, were divided into 3 groups, including a low-fat diet group, a high-fat diet (HFD) group, and a high-fat diet plus quercetin (HFD+Q) group. The mice in HFD+Q group were given 50 mg per kg BW quercetin by gavage for 20 weeks. The body weight, fat accumulation, gut barrier function, glucose tolerance, and adipose tissue inflammation were determined in mice. 16 s rRNA amplicon sequence and non-targeted metabolomics analysis were used to explore the alteration of gut microbiota and metabolites. We found that quercetin significantly alleviated HFD-induced obesity, improved glucose tolerance, recovered gut barrier function, and reduced adipose tissue inflammation. Moreover, quercetin ameliorated HFD-induced gut microbiota disorder by regulating the abundance of gut microbiota, such as Adlercreutzia, Allobaculum, Coprococcus_1, Lactococcus, and Akkermansia. Quercetin influenced the production of metabolites that were linked to alterations in obesity-related inflammation and oxidative stress, such as Glycerophospho-N-palmitoyl ethanolamine, sanguisorbic acid dilactone, O-Phospho-L-serine, and P-benzoquinone. Our results demonstrate that the anti-obesity effects of quercetin may be mediated through regulation in gut microbiota and metabolites.
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Affiliation(s)
- Lijie Su
- Department of Nutrition and Food Hygiene, School of Public Health, Guangzhou Medical University, Guangzhou, China
| | - Yupeng Zeng
- Department of Nutrition and Food Hygiene, School of Public Health, Guangzhou Medical University, Guangzhou, China
| | - Guokun Li
- Department of Nutrition and Food Hygiene, School of Public Health, Guangzhou Medical University, Guangzhou, China
| | - Jing Chen
- Sino-French Hoffmann Institute, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, China
| | - Xiaoyi Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Guangzhou Medical University, Guangzhou, China
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Effect of Intermittent Fasting, Probiotic-Fermented Camel Milk, and Probiotic-Fermented Camel Milk Incorporating Sukkari Date on Diet-Induced Obesity in Rats. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8110619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Obesity causes metabolic syndrome disorders that are detrimental to health. The current study examined the effects of intermittent fasting (IF), fermented camel milk (FCM), and fermented camel milk incorporating 10% Sukkari date (FCM-D) on weight loss, blood profile, and antioxidant status in obese rats for 6 weeks. Subsequently, leptin and adiponectin levels and histopathological examination of adipose tissue were carried out. Results showed that IF with FCM or FCM-D decreased body weight by 0.92 and −5.45%, respectively. IF alone lowered non-fasting blood glucose (NFBG) and fasting blood glucose FBG after 6 weeks, whereas adding FCM or FCM-D reduced NFBG after 4 weeks. Intermittently fasting obese rats given FCM or FCM-D had the lowest blood glucose levels (BGL). The hypolipidemic effects of IF, FCM, and FCM-D on obese rats reduced triglycerides (TG), cholesterols (CHO), and their derivatives. FCM-D with IF presented a superior effect on lipid profile. A reduction rate of 40, 37, 66, and 40% for TG, CHO, low-density lipoprotein (LDL-c), and very low-density lipoprotein (VLDL-c), respectively, and an increase in HDL-C by 34% were noticed. Reductions of 40, 37, 66, and 40% for TG, CHO, LDL-c, and VLDL-c, respectively, and a 34% rise in high-density lipoprotein (HDL-C) were noted. Combining IF with FCM or FCM-D lowered the atherogenic index (AI) by 42% and 59%, respectively. Remarkably, treating rats with FCM+IF or FCM-D+IF effectively attenuated leptin and adiponectin levels. Malondialdehyde (MDA) was significantly decreased in a type-dependent manner. Implementing FCM-D or FCM with IF significantly attenuated reduced glutathione (GSH), superoxide dismutase (SOD), MDA, and catalase (CAT) levels. The most efficient treatment was giving FCM-D with IF. Histopathologically, adipocyte lipolysis increases free fatty acids (FFAs) and promotes inflammation. Only IF+FCM-D indicated no histopathological alteration except for a few focal areas of a few inflammatory cell infiltrations in the parenchyma. In conclusion, combining IF and Probiotic-FCM or Probiotic-FCM-D effectively accelerated weight loss, attenuated metabolic markers, and reversed histopathological alterations. Thus, IF combined with Probiotic-FCM or Probiotic-FCM-D is highly recommended for weight loss, strengthening antioxidative status, and preventing health disorders.
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22
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Chompre G, Sambolin L, Cruz ML, Sanchez R, Rodriguez Y, Rodríguez-Santiago RE, Yamamura Y, Appleyard CB. A one month high fat diet disrupts the gut microbiome and integrity of the colon inducing adiposity and behavioral despair in male Sprague Dawley rats. Heliyon 2022; 8:e11194. [PMID: 36387539 PMCID: PMC9663868 DOI: 10.1016/j.heliyon.2022.e11194] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 06/17/2022] [Accepted: 10/17/2022] [Indexed: 11/05/2022] Open
Abstract
High-fat diet (HFD) is associated with gut microbiome dysfunction and mental disorders. However, the time-dependence as to when this occurs is unclear. We hypothesized that a short-term HFD causes colonic tissue integrity changes resulting in behavioral changes. Rats were fed HFD or low-fat diet (LFD) for a month and gut microbiome, colon, and behavior were evaluated. Behavioral despair was found in the HFD group. Although obesity was absent, the HFD group showed increased percent weight gain, epididymal fat tissue, and leptin expression. Moreover, the HFD group had increased colonic damage, decreased expression of the tight junction proteins, and higher lipopolysaccharides (LPS) in serum. Metagenomic analysis revealed that the HFD group had more Bacteroides and less S24-7 which correlated with the decreased claudin-5. Finally, HFD group showed an increase of microglia percent area, increased astrocytic projections, and decreased phospho-mTOR. In conclusion, HFD consumption in a short period is still sufficient to disrupt gut integrity resulting in LPS infiltration, alterations in the brain, and behavioral despair even in the absence of obesity.
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Affiliation(s)
- Gladys Chompre
- Biology and Biotechnology Department, Pontifical Catholic University of Puerto Rico, Ponce, Puerto Rico
- Basic Sciences Department, Division of Physiology, Ponce Health Sciences University/Ponce Research Institute, Ponce, Puerto Rico
| | - Lubriel Sambolin
- Basic Sciences Department, Division of Pharmacology, Ponce Health Sciences University/Ponce Research Institute, Ponce, Puerto Rico
| | - Myrella L. Cruz
- Basic Sciences Department, Division of Physiology, Ponce Health Sciences University/Ponce Research Institute, Ponce, Puerto Rico
| | - Rafael Sanchez
- AIDS Research Infrastructure Program, Ponce Health Sciences University/Ponce Research Institute, Ponce, Puerto Rico
| | - Yarelis Rodriguez
- Basic Sciences Department, Division of Physiology, Ponce Health Sciences University/Ponce Research Institute, Ponce, Puerto Rico
| | - Ronald E. Rodríguez-Santiago
- AIDS Research Infrastructure Program, Ponce Health Sciences University/Ponce Research Institute, Ponce, Puerto Rico
| | - Yasuhiro Yamamura
- AIDS Research Infrastructure Program, Ponce Health Sciences University/Ponce Research Institute, Ponce, Puerto Rico
| | - Caroline B. Appleyard
- Basic Sciences Department, Division of Physiology, Ponce Health Sciences University/Ponce Research Institute, Ponce, Puerto Rico
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Liu N, Song Z, Jin W, Yang Y, Sun S, Zhang Y, Zhang S, Liu S, Ren F, Wang P. Pea albumin extracted from pea (Pisum sativum L.) seed protects mice from high fat diet-induced obesity by modulating lipid metabolism and gut microbiota. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
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Borges Russo MK, Kowalewski LS, da Natividade GR, de Lemos Muller CH, Schroeder HT, Bock PM, Ayres LR, Cardoso BU, Zanotto C, Schein JT, Rech TH, Crispim D, Canani LH, Friedman R, Leitão CB, Gerchman F, Krause M. Elevated Extracellular HSP72 and Blunted Heat Shock Response in Severe COVID-19 Patients. Biomolecules 2022; 12:biom12101374. [PMID: 36291584 PMCID: PMC9599720 DOI: 10.3390/biom12101374] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/20/2022] [Accepted: 09/22/2022] [Indexed: 11/16/2022] Open
Abstract
Aims: We hypothesized that critically ill patients with SARS-CoV-2 infection and insulin resistance would present a reduced Heat Shock Response (HSR), which is a pathway involved in proteostasis and anti-inflammation, subsequently leading to worse outcomes and higher inflammation. In this work we aimed: (i) to measure the concentration of extracellular HSP72 (eHSP72) in patients with severe COVID-19 and in comparison with noninfected patients; (ii) to compare the HSR between critically ill patients with COVID-19 (with and without diabetes); and (iii) to compare the HSR in these patients with noninfected individuals. Methods: Sixty critically ill adults with acute respiratory failure with SARS-CoV-2, with or without diabetes, were selected. Noninfected subjects were included for comparison (healthy, n = 19 and patients with diabetes, n = 22). Blood samples were collected to measure metabolism (glucose and HbA1c); oxidative stress (lypoperoxidation and carbonyls); cytokine profile (IL-10 and TNF); eHSP72; and the HSR (in vitro). Results: Patients with severe COVID-19 presented higher plasma eHSP72 compared with healthy individuals and noninfected patients with diabetes. Despite the high level of plasma cytokines, no differences were found between critically ill patients with COVID-19 with or without diabetes. Critically ill patients, when compared to noninfected, presented a blunted HSR. Oxidative stress markers followed the same pattern. No differences in the HSR (extracellular/intracellular level) were found between critically ill patients, with or without diabetes. Conclusions: We demonstrated that patients with severe COVID-19 have elevated plasma eHSP72 and that their HSR is blunted, regardless of the presence of diabetes. These results might explain the uncontrolled inflammation and also provide insights on the increased risk in developing type 2 diabetes after SARS-CoV-2 infection.
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Affiliation(s)
- Mariana Kras Borges Russo
- Laboratory of Inflammation, Metabolism and Exercise Research (LAPIMEX) and Laboratory of Cellular Physiology, Department of Physiology, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil
| | - Lucas Stahlhöfer Kowalewski
- Laboratory of Inflammation, Metabolism and Exercise Research (LAPIMEX) and Laboratory of Cellular Physiology, Department of Physiology, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil
| | - Gabriella Richter da Natividade
- Endocrine and Metabolic Unit, Hospital de Clinicas de Porto Alegre, Post-Graduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil
- Post-Graduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil
| | - Carlos Henrique de Lemos Muller
- Laboratory of Inflammation, Metabolism and Exercise Research (LAPIMEX) and Laboratory of Cellular Physiology, Department of Physiology, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil
| | - Helena Trevisan Schroeder
- Laboratory of Inflammation, Metabolism and Exercise Research (LAPIMEX) and Laboratory of Cellular Physiology, Department of Physiology, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil
| | - Patrícia Martins Bock
- Faculdades Integradas de Taquara, Taquara 95612-150, RS, Brazil
- Department of Pharmacology, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil
| | - Layane Ramos Ayres
- Laboratory of Inflammation, Metabolism and Exercise Research (LAPIMEX) and Laboratory of Cellular Physiology, Department of Physiology, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil
| | - Bernardo Urbano Cardoso
- Laboratory of Inflammation, Metabolism and Exercise Research (LAPIMEX) and Laboratory of Cellular Physiology, Department of Physiology, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil
| | - Caroline Zanotto
- Endocrine and Metabolic Unit, Hospital de Clinicas de Porto Alegre, Post-Graduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil
- Post-Graduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil
| | - Julia Tsao Schein
- Endocrine and Metabolic Unit, Hospital de Clinicas de Porto Alegre, Post-Graduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil
| | - Tatiana Helena Rech
- Intensive Care Unit, Hospital de Clinicas de Porto Alegre, Porto Alegre 90035-903, RS, Brazil
| | - Daisy Crispim
- Endocrine and Metabolic Unit, Hospital de Clinicas de Porto Alegre, Post-Graduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil
- Post-Graduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil
| | - Luis Henrique Canani
- Endocrine and Metabolic Unit, Hospital de Clinicas de Porto Alegre, Post-Graduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil
- Post-Graduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil
| | - Rogério Friedman
- Endocrine and Metabolic Unit, Hospital de Clinicas de Porto Alegre, Post-Graduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil
- Post-Graduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil
| | - Cristiane Bauermann Leitão
- Endocrine and Metabolic Unit, Hospital de Clinicas de Porto Alegre, Post-Graduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil
- Post-Graduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil
| | - Fernando Gerchman
- Endocrine and Metabolic Unit, Hospital de Clinicas de Porto Alegre, Post-Graduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil
- Post-Graduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil
| | - Mauricio Krause
- Laboratory of Inflammation, Metabolism and Exercise Research (LAPIMEX) and Laboratory of Cellular Physiology, Department of Physiology, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre 91509-900, RS, Brazil
- Correspondence: ; Tel.: +55-(51)-33082065
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Macrophages Upregulate Estrogen Receptor Expression in the Model of Obesity-Associated Breast Carcinoma. Cells 2022; 11:cells11182844. [PMID: 36139419 PMCID: PMC9496942 DOI: 10.3390/cells11182844] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/08/2022] [Accepted: 09/08/2022] [Indexed: 11/17/2022] Open
Abstract
Breast cancer (BC) and obesity are two heterogeneous conditions with a tremendous impact on health. BC is the most commonly diagnosed neoplasm and the leading cause of cancer-related mortality among women, and the prevalence of obesity in women worldwide reaches pandemic proportions. Obesity is a significant risk factor for both incidence and worse prognosis in estrogen receptor positive (ER+) BC. Yet, the mechanisms underlying the association between excess adiposity and increased risk/therapy resistance/poorer outcome of ER+, but not ER−negative (ER−), BC are not fully understood. Tumor-promoting action of obesity, predominantly in ER + BC patients, is often attributed to the augmented production of estrogen in ‘obese’ adipose tissue. However, in addition to the estrogen production, expression levels of ER represent a key determinant in hormone-driven breast tumorigenesis and therapy response. Here, utilizing in vitro and in vivo models of BC, we show that macrophages, whose adverse activation by obesogenic substances is fueled by heparanase (extracellular matrix-degrading enzyme), are capable of upregulating ER expression in tumor cells, in the setting of obesity-associated BC. These findings underscore a previously unknown mechanism through which interplay between cellular/extracellular elements of obesity-associated BC microenvironment influences estrogen sensitivity—a critical component in hormone-related cancer progression and resistance to therapy.
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Santhiravel S, Bekhit AEDA, Mendis E, Jacobs JL, Dunshea FR, Rajapakse N, Ponnampalam EN. The Impact of Plant Phytochemicals on the Gut Microbiota of Humans for a Balanced Life. Int J Mol Sci 2022; 23:ijms23158124. [PMID: 35897699 PMCID: PMC9332059 DOI: 10.3390/ijms23158124] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/19/2022] [Accepted: 07/21/2022] [Indexed: 02/01/2023] Open
Abstract
The gastrointestinal tract of humans is a complex microbial ecosystem known as gut microbiota. The microbiota is involved in several critical physiological processes such as digestion, absorption, and related physiological functions and plays a crucial role in determining the host’s health. The habitual consumption of specific dietary components can impact beyond their nutritional benefits, altering gut microbiota diversity and function and could manipulate health. Phytochemicals are non-nutrient biologically active plant components that can modify the composition of gut microflora through selective stimulation of proliferation or inhibition of certain microbial communities in the intestine. Plants secrete these components, and they accumulate in the cell wall and cell sap compartments (body) for their development and survival. These compounds have low bioavailability and long time-retention in the intestine due to their poor absorption, resulting in beneficial impacts on gut microbiota population. Feeding diets containing phytochemicals to humans and animals may offer a path to improve the gut microbiome resulting in improved performance and/or health and wellbeing. This review discusses the effects of phytochemicals on the modulation of the gut microbiota environment and the resultant benefits to humans; however, the effect of phytochemicals on the gut microbiota of animals is also covered, in brief.
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Affiliation(s)
- Sarusha Santhiravel
- Postgraduate Institute of Agriculture, University of Peradeniya, Peradeniya 20400, Sri Lanka
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, NL A1C 5S7, Canada
| | - Alaa El-Din A Bekhit
- Department of Food Sciences, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand
| | - Eresha Mendis
- Department of Food Science and Technology, Faculty of Agriculture, University of Peradeniya, Peradeniya 20400, Sri Lanka
| | - Joe L Jacobs
- Animal Production Sciences, Agriculture Victoria Research, Department of Jobs, Precincts and Regions, Ellinbank, VIC 3821, Australia
- Centre for Agricultural Innovation, School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Frank R Dunshea
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC 3010, Australia
- Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
| | - Niranjan Rajapakse
- Department of Food Science and Technology, Faculty of Agriculture, University of Peradeniya, Peradeniya 20400, Sri Lanka
| | - Eric N Ponnampalam
- Animal Production Sciences, Agriculture Victoria Research, Department of Jobs, Precincts and Regions, Bundoora, VIC 3083, Australia
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Varre JV, Holland WL, Summers SA. You aren't IMMUNE to the ceramides that accumulate in cardiometabolic disease. Biochim Biophys Acta Mol Cell Biol Lipids 2022; 1867:159125. [PMID: 35218934 PMCID: PMC9050903 DOI: 10.1016/j.bbalip.2022.159125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Accepted: 02/14/2022] [Indexed: 02/06/2023]
Abstract
Obesity leads to persistent increases in immune responses that contribute to cardiometabolic pathologies such as diabetes and cardiovascular disease. Pro-inflammatory macrophages infiltrate the expanding fat mass, which leads to increased production of cytokines such as tumor necrosis factor-alpha. Moreover, saturated fatty acids enhance signaling through the toll-like receptors involved in innate immunity. Herein we discuss the evidence that ceramides-which are intermediates in the biosynthetic pathway that produces sphingolipids-are essential intermediates that link these inflammatory signals to impaired tissue function. We discuss the mechanisms linking these immune insults to ceramide production and review the numerous ceramide actions that alter cellular metabolism, induce oxidative stress, and stimulate apoptosis. Lastly, we evaluate the correlation of ceramides in humans with inflammation-linked cardiometabolic disease and discuss preclinical studies which suggest that ceramide-lowering interventions may be an effective strategy to treat or prevent such maladies.
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Affiliation(s)
- Joseph V Varre
- Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, UT 94108, United States of America
| | - William L Holland
- Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, UT 94108, United States of America
| | - Scott A Summers
- Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, UT 94108, United States of America.
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Szalanczy AM, Key CCC, Woods LCS. Genetic variation in satiety signaling and hypothalamic inflammation: merging fields for the study of obesity. J Nutr Biochem 2022; 101:108928. [PMID: 34936921 PMCID: PMC8959400 DOI: 10.1016/j.jnutbio.2021.108928] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 11/08/2021] [Accepted: 12/01/2021] [Indexed: 02/07/2023]
Abstract
Although obesity has been a longstanding health crisis, the genetic architecture of the disease remains poorly understood. Genome-wide association studies have identified many genomic loci associated with obesity, with genes being enriched in the brain, particularly in the hypothalamus. This points to the role of the central nervous system (CNS) in predisposition to obesity, and we emphasize here several key genes along the satiety signaling pathway involved in genetic susceptibility. Interest has also risen regarding the chronic, low-grade obesity-associated inflammation, with a growing concern toward inflammation in the hypothalamus as a precursor to obesity. Recent studies have found that genetic variation in inflammatory genes play a role in obesity susceptibility, and we highlight here several key genes. Despite the interest in the genetic variants of these pathways individually, there is a lack of research that investigates the relationship between the two. Understanding the interplay between genetic variation in obesity genes enriched in the CNS and inflammation genes will advance our understanding of obesity etiology and heterogeneity, improve genetic risk prediction analyses, and highlight new drug targets for the treatment of obesity. Additionally, this increased knowledge will assist in physician's ability to develop personalized nutrition and medication strategies for combating the obesity epidemic. Though it often seems to present universally, obesity is a highly individual disease, and there remains a need in the field to develop methods to treat at the individual level.
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Zhou ZY, Deng Y, Wen YL, Cheng YQ, Li KX, Chen HP. Chronic low-grade inflammation is involved in TLR4 knockout-induced spontaneous obesity in aged mice. Biomed Pharmacother 2022; 147:112637. [DOI: 10.1016/j.biopha.2022.112637] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 01/01/2022] [Accepted: 01/12/2022] [Indexed: 02/09/2023] Open
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Song C, Lv W, Li Y, Nie P, Lu J, Geng Y, Heng Z, Song L. Alleviating the effect of quinoa and the underlying mechanism on hepatic steatosis in high-fat diet-fed rats. Nutr Metab (Lond) 2021; 18:106. [PMID: 34922572 PMCID: PMC8684231 DOI: 10.1186/s12986-021-00631-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 11/26/2021] [Indexed: 02/08/2023] Open
Abstract
Background Nonalcoholic fatty liver disease (NAFLD) is considered the hepatic component of metabolic syndrome and has attracted widespread attention due to its increased prevalence. Daily dietary management is an effective strategy for the prevention of NAFLD. Quinoa, a nutritious pseudocereal, is abundant in antioxidative bioactive phytochemicals. In the present study, the effects of different amounts of quinoa on the progression of NAFLD and the related molecular mechanism were investigated. Methods Male SD rats were simultaneously administered a high fat diet (HF) and different amounts of quinoa (equivalent to 100 g/day and 300 g/day of human intake, respectively). After 12 weeks of the intervention, hepatic TG (triglyceride) and TC (total cholesterol) as well as serum antioxidative parameters were determined, and hematoxylin–eosin staining (H&E) staining was used to evaluate hepatic steatosis. Differential metabolites in serum and hepatic tissue were identified using UPLC-QTOF-MSE. The mRNA expression profile was investigated using RNA-Seq and further verified using real-time polymerase chain reaction (RT-PCR). Results Low amounts of quinoa (equivalent to 100 g/d of human intake) effectively controlled the weight of rats fed a high-fat diet. In addition, quinoa effectively inhibited the increase in hepatic TG and TC levels, mitigated pathological injury, promoted the increase in SOD and GSH-Px activities, and decreased MDA levels. Nontarget metabolic profile analysis showed that quinoa regulated lipid metabolites in the circulation system and liver such as LysoPC and PC. RNA-Seq and RT-PCR verification revealed that a high amount of quinoa more effectively upregulated genes related to lipid metabolism [Apoa (apolipoprotein)5, Apoa4, Apoc2] and downregulated genes related to the immune response [lrf (interferon regulatory factor)5, Tlr6 (Toll-like receptor), Tlr10, Tlr11, Tlr12]. Conclusion Quinoa effectively prevented NAFLD by controlling body weight, mitigating oxidative stress, and regulating the lipid metabolic profile and the expression of genes related to lipid metabolism and the immune response. Supplementary Information The online version contains supplementary material available at 10.1186/s12986-021-00631-7.
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Affiliation(s)
- Chenwei Song
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Wei Lv
- National Semi-Arid Agriculture Engineering Technology Research Center, Shijiazhuang, 050051, Hebei, China
| | - Yahui Li
- Center for Food Evaluation, State Administration for Market Regulation, Beijing, 100070, China
| | - Pan Nie
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Jun Lu
- Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 201602, China
| | - Yanlou Geng
- National Semi-Arid Agriculture Engineering Technology Research Center, Shijiazhuang, 050051, Hebei, China.
| | - Zhang Heng
- Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 201602, China.
| | - Lihua Song
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China.
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Verdú E, Homs J, Boadas-Vaello P. Physiological Changes and Pathological Pain Associated with Sedentary Lifestyle-Induced Body Systems Fat Accumulation and Their Modulation by Physical Exercise. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:13333. [PMID: 34948944 PMCID: PMC8705491 DOI: 10.3390/ijerph182413333] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 12/02/2021] [Accepted: 12/10/2021] [Indexed: 12/11/2022]
Abstract
A sedentary lifestyle is associated with overweight/obesity, which involves excessive fat body accumulation, triggering structural and functional changes in tissues, organs, and body systems. Research shows that this fat accumulation is responsible for several comorbidities, including cardiovascular, gastrointestinal, and metabolic dysfunctions, as well as pathological pain behaviors. These health concerns are related to the crosstalk between adipose tissue and body systems, leading to pathophysiological changes to the latter. To deal with these health issues, it has been suggested that physical exercise may reverse part of these obesity-related pathologies by modulating the cross talk between the adipose tissue and body systems. In this context, this review was carried out to provide knowledge about (i) the structural and functional changes in tissues, organs, and body systems from accumulation of fat in obesity, emphasizing the crosstalk between fat and body tissues; (ii) the crosstalk between fat and body tissues triggering pain; and (iii) the effects of physical exercise on body tissues and organs in obese and non-obese subjects, and their impact on pathological pain. This information may help one to better understand this crosstalk and the factors involved, and it could be useful in designing more specific training interventions (according to the nature of the comorbidity).
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Affiliation(s)
- Enrique Verdú
- Research Group of Clinical Anatomy, Embryology and Neuroscience (NEOMA), Department of Medical Sciences, University of Girona, 17003 Girona, Spain;
| | - Judit Homs
- Research Group of Clinical Anatomy, Embryology and Neuroscience (NEOMA), Department of Medical Sciences, University of Girona, 17003 Girona, Spain;
- Department of Physical Therapy, EUSES-University of Girona, 17190 Salt, Spain
| | - Pere Boadas-Vaello
- Research Group of Clinical Anatomy, Embryology and Neuroscience (NEOMA), Department of Medical Sciences, University of Girona, 17003 Girona, Spain;
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Intestinal microbiota and their metabolic contribution to type 2 diabetes and obesity. J Diabetes Metab Disord 2021; 20:1855-1870. [PMID: 34900829 PMCID: PMC8630233 DOI: 10.1007/s40200-021-00858-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 07/14/2021] [Indexed: 02/06/2023]
Abstract
Obesity and type 2 diabetes mellitus (T2DM) are common, chronic metabolic disorders with associated significant long-term health problems at global epidemic levels. It is recognised that gut microbiota play a central role in maintaining host homeostasis and through technological advances in both animal and human models it is becoming clear that gut microbiota are heavily involved in key pathophysiological roles in the aetiology and progression of both conditions. This review will focus on current knowledge regarding microbiota interactions with short chain fatty acids, the host inflammatory response, signaling pathways, integrity of the intestinal barrier, the interaction of the gut-brain axis and the subsequent impact on the metabolic health of the host.
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Recent Advances in Adipose Tissue Dysfunction and Its Role in the Pathogenesis of Non-Alcoholic Fatty Liver Disease. Cells 2021; 10:cells10123300. [PMID: 34943809 PMCID: PMC8699427 DOI: 10.3390/cells10123300] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 11/09/2021] [Accepted: 11/23/2021] [Indexed: 12/12/2022] Open
Abstract
Obesity is a serious ongoing health problem that significantly increases the incidence of nonalcoholic fatty liver disease (NAFLD). During obesity, adipose tissue dysfunction is obvious and characterized by increased fat deposition (adiposity) and chronic low-grade inflammation. The latter has been implicated to critically promote the development and progression of NAFLD, whose advanced form non-alcoholic steatohepatitis (NASH) is considered one of the most common causes of terminal liver diseases. This review summarizes the current knowledge on obesity-related adipose dysfunction and its roles in the pathogenesis of hepatic steatosis and inflammation, as well as liver fibrosis. A better understanding of the crosstalk between adipose tissue and liver under obesity is essential for the development of new and improved preventive and/or therapeutic approaches for managing NAFLD.
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Pell N, Garcia-Pras E, Gallego J, Naranjo-Suarez S, Balvey A, Suñer C, Fernandez-Alfara M, Chanes V, Carbo J, Ramirez-Pedraza M, Reina O, Thingholm L, Bang C, Rühlemann M, Franke A, Schierwagen R, Rheinwalt KP, Trebicka J, Mendez R, Fernandez M. Targeting the cytoplasmic polyadenylation element-binding protein CPEB4 protects against diet-induced obesity and microbiome dysbiosis. Mol Metab 2021; 54:101388. [PMID: 34774811 PMCID: PMC8711066 DOI: 10.1016/j.molmet.2021.101388] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/26/2021] [Accepted: 10/30/2021] [Indexed: 01/08/2023] Open
Abstract
Objective Obesity represents a growing health problem that is reaching pandemic dimensions and lacks effective cures, thus highlighting an urgent need for better mechanistic understanding and new therapeutic strategies. Unlike transcription, the function of translation in obesity has hardly been investigated. Here, we fill this knowledge gap by pinpointing a crucial function for gene regulation at the step of translation in diet-induced obesity. Methods We performed studies with human adipose tissue, high-fat-diet-induced obese mice and rats, CPEB4-knockout mice, and adipocyte lines. Cells were transfected with small-interfering RNAs that knockdown CPEB4. Transcriptome-wide identification and validation of CPEB4 targets in adipocytes were obtained by RNA-protein coimmunoprecipitation and high-throughput sequencing. The effect of CPEB4 depletion on high-fat-diet-induced dysbiosis was determined by 16S ribosomal-RNA gene sequencing and microbiome bioinformatics. Results We show that cytoplasmic polyadenylation element-binding protein 4 (CPEB4), which controls the translation of specific mRNAs by modulating their poly(A) tails, is highly expressed in visceral fat of obese but not lean humans and rodents (mice and rats), where it orchestrates an essential post-transcriptional reprogramming for aggravation of high-fat-diet-induced obesity. Mechanistically, CPEB4 overexpression in obese adipocytes activates the translation of factors essential for adipose tissue expansion (Cebpb, Stat5a) and adipocyte-intrinsic immune-like potential (Ccl2, Tlr4), as demonstrated by RNA-immunoprecipitation and high-throughput sequencing and experimentally validated in vivo. Consistently blocking CPEB4 production in knockout mice protects against diet-induced body weight gain and reduces adipose tissue enlargement and inflammation. In addition, the depletion of CPEB4 specifically in obese adipocytes using short hairpin RNAs decreases cell differentiation, lipid accumulation, and the proinflammatory and migratory capacity of macrophages. The absence of CPEB4 also attenuates high-fat diet-induced dysbiosis, shaping the microbiome composition toward a more beneficial profile, as shown by microbiome bioinformatics analysis. Conclusion Our study identifies CPEB4 as a driver and therapeutic target to combat obesity. CPEB4 expression is elevated in adipose tissue from obese patients and rodents. CPEB4 overexpression is required for the abnormal obesity-associated phenotype. Targeting CPEB4 reduces predisposition to diet-induced obesity. Targeting CPEB4 alleviates obesity-associated microbiome dysbiosis. CPEB4 is an attractive therapeutic target for treating obesity and its sequelae.
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Affiliation(s)
- Nuria Pell
- IDIBAPS Biomedical Research Institute, University of Barcelona, Barcelona, Spain
| | - Ester Garcia-Pras
- IDIBAPS Biomedical Research Institute, University of Barcelona, Barcelona, Spain
| | - Javier Gallego
- IDIBAPS Biomedical Research Institute, University of Barcelona, Barcelona, Spain
| | | | - Alexandra Balvey
- IDIBAPS Biomedical Research Institute, University of Barcelona, Barcelona, Spain
| | - Clara Suñer
- Institute for Research in Biomedicine (IRB), The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Marcos Fernandez-Alfara
- Institute for Research in Biomedicine (IRB), The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Veronica Chanes
- Institute for Research in Biomedicine (IRB), The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Julia Carbo
- IDIBAPS Biomedical Research Institute, University of Barcelona, Barcelona, Spain
| | | | - Oscar Reina
- Institute for Research in Biomedicine (IRB), The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Louise Thingholm
- Institute of Clinical Molecular Biology, Christian-Albrechts-University Kiel, University Hospital Schleswig Holstein Campus Kiel, Kiel, Germany
| | - Corinna Bang
- Institute of Clinical Molecular Biology, Christian-Albrechts-University Kiel, University Hospital Schleswig Holstein Campus Kiel, Kiel, Germany
| | - Malte Rühlemann
- Institute of Clinical Molecular Biology, Christian-Albrechts-University Kiel, University Hospital Schleswig Holstein Campus Kiel, Kiel, Germany
| | - Andre Franke
- Institute of Clinical Molecular Biology, Christian-Albrechts-University Kiel, University Hospital Schleswig Holstein Campus Kiel, Kiel, Germany
| | | | | | | | - Raul Mendez
- Institute for Research in Biomedicine (IRB), The Barcelona Institute of Science and Technology, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
| | - Mercedes Fernandez
- IDIBAPS Biomedical Research Institute, University of Barcelona, Barcelona, Spain.
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Zhuang P, Li H, Jia W, Shou Q, Zhu Y, Mao L, Wang W, Wu F, Chen X, Wan X, Wu Y, Liu X, Li Y, Zhu F, He L, Chen J, Zhang Y, Jiao J. Eicosapentaenoic and docosahexaenoic acids attenuate hyperglycemia through the microbiome-gut-organs axis in db/db mice. MICROBIOME 2021; 9:185. [PMID: 34507608 PMCID: PMC8434703 DOI: 10.1186/s40168-021-01126-6] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 07/08/2021] [Indexed: 05/04/2023]
Abstract
BACKGROUND Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) have been suggested to prevent the development of metabolic disorders. However, their individual role in treating hyperglycemia and the mechanism of action regarding gut microbiome and metabolome in the context of diabetes remain unclear. RESULTS Supplementation of DHA and EPA attenuated hyperglycemia and insulin resistance without changing body weight in db/db mice while the ameliorative effect appeared to be more pronounced for EPA. DHA/EPA supplementation reduced the abundance of the lipopolysaccharide-containing Enterobacteriaceae whereas elevated the family Coriobacteriaceae negatively correlated with glutamate level, genera Barnesiella and Clostridium XlVa associated with bile acids production, beneficial Bifidobacterium and Lactobacillus, and SCFA-producing species. The gut microbiome alterations co-occurred with the shifts in the metabolome, including glutamate, bile acids, propionic/butyric acid, and lipopolysaccharide, which subsequently relieved β cell apoptosis, suppressed hepatic gluconeogenesis, and promoted GLP-1 secretion, white adipose beiging, and insulin signaling. All these changes appeared to be more evident for EPA. Furthermore, transplantation with DHA/EPA-mediated gut microbiota mimicked the ameliorative effect of DHA/EPA on glucose homeostasis in db/db mice, together with similar changes in gut metabolites. In vitro, DHA/EPA treatment directly inhibited the growth of Escherichia coli (Family Enterobacteriaceae) while promoted Coriobacterium glomerans (Family Coriobacteriaceae), demonstrating a causal effect of DHA/EPA on featured gut microbiota. CONCLUSIONS DHA and EPA dramatically attenuated hyperglycemia and insulin resistance in db/db mice, which was mediated by alterations in gut microbiome and metabolites linking gut to adipose, liver and pancreas. These findings shed light into the gut-organs axis as a promising target for restoring glucose homeostasis and also suggest a better therapeutic effect of EPA for treating diabetes. Video abstract.
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Affiliation(s)
- Pan Zhuang
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Haoyu Li
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Wei Jia
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Qiyang Shou
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, 310005, Zhejiang, China
| | - Ya'er Zhu
- Analysis Center of Agrobiology and Environmental Sciences, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Lei Mao
- Department of Nutrition, School of Public Health, Department of Clinical Nutrition of Affiliated Second Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, Zhejiang, China
| | - Wenqiao Wang
- Department of Nutrition, School of Public Health, Department of Clinical Nutrition of Affiliated Second Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, Zhejiang, China
| | - Fei Wu
- Department of Nutrition, School of Public Health, Department of Clinical Nutrition of Affiliated Second Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, Zhejiang, China
| | - Xiaoqian Chen
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Xuzhi Wan
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Yuqi Wu
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Xiaohui Liu
- Department of Nutrition, School of Public Health, Department of Clinical Nutrition of Affiliated Second Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, Zhejiang, China
| | - Yin Li
- Department of Nutrition, School of Public Health, Department of Clinical Nutrition of Affiliated Second Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, Zhejiang, China
| | - Fanghuan Zhu
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Lilin He
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Jingnan Chen
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Yu Zhang
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, Zhejiang, China.
| | - Jingjing Jiao
- Department of Nutrition, School of Public Health, Department of Clinical Nutrition of Affiliated Second Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, Zhejiang, China.
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Ullah R, Rauf N, Nabi G, Yi S, Yu-Dong Z, Fu J. Mechanistic insight into high-fat diet-induced metabolic inflammation in the arcuate nucleus of the hypothalamus. Biomed Pharmacother 2021; 142:112012. [PMID: 34388531 DOI: 10.1016/j.biopha.2021.112012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 07/31/2021] [Accepted: 08/03/2021] [Indexed: 12/16/2022] Open
Abstract
A high-fat diet (HFD) is linked with cytokines production by non-neuronal cells within the hypothalamus, which mediates metabolic inflammation. These cytokines then activate different inflammatory mediators in the arcuate nucleus of the hypothalamus (ARC), a primary hypothalamic area accommodating proopiomelanocortin (POMC) and agouti-related peptide (AGRP) neurons, first-order neurons that sense and integrate peripheral metabolic signals and then respond accordingly. These mediators, such as inhibitor of κB kinase-β (IKKβ), suppression of cytokine signaling 3 (SOCS3), c-Jun N-terminal kinases (JNKs), protein kinase C (PKC), etc., cause insulin and leptin resistance in POMC and AGRP neurons and support obesity and related metabolic complications. On the other hand, inhibition of these mediators has been shown to counteract the impaired metabolism. Therefore, it is important to discuss the contribution of neuronal and non-neuronal cells in HFD-induced hypothalamic inflammation. Furthermore, understanding few other questions, such as the diets causing hypothalamic inflammation, the gender disparity in response to HFD feeding, and how hypothalamic inflammation affects ARC neurons to cause impaired metabolism, will be helpful for the development of therapeutic approaches to prevent or treat HFD-induced obesity.
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Affiliation(s)
- Rahim Ullah
- Department of Endocrinology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310052, China; Center for Brain Research and Brain-Machine Integration, School of Brain Science and Brain Medicine, Zhejiang University, Hangzhou, China
| | - Naveed Rauf
- Department of Endocrinology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310052, China
| | - Ghulam Nabi
- Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang 050024, Hebei Province, China; Department of Life Sciences, School of Science, University of Management and Technology (UMT), Lahore, Pakistan
| | - Shen Yi
- Center for Brain Research and Brain-Machine Integration, School of Brain Science and Brain Medicine, Zhejiang University, Hangzhou, China.
| | - Zhou Yu-Dong
- Center for Brain Research and Brain-Machine Integration, School of Brain Science and Brain Medicine, Zhejiang University, Hangzhou, China.
| | - Junfen Fu
- Department of Endocrinology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310052, China; National Clinical Research Center for Child Health, Hangzhou 310052, China; National Children's Regional Medical Center, Hangzhou 310052, China.
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Iskender H, Dokumacioglu E, Terim Kapakin KA, Yenice G, Mohtare B, Bolat I, Hayirli A. Effects of oleanolic acid on inflammation and metabolism in diabetic rats. Biotech Histochem 2021; 97:269-276. [PMID: 34261397 DOI: 10.1080/10520295.2021.1954691] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Diabetes mellitus (DM) is a chronic metabolic disease that threatens the health of the world population. We investigated the effects of oleanolic acid (OA) administration on inflammation status and metabolic profile in streptozotocin (STZ) induced diabetic rats. Four experimental groups were established: healthy rats not administered OA, healthy rats administered OA, diabetic rats not administered OA, diabetic rats administered OA. OA, 5 mg/kg, was administered by oral gavage for 21 days. Serum samples collected at the end of the experiment and analyzed for toll-like receptor-9, interleukin-18, nuclear factor kappa B, malondialdehyde MDA, glucose, total cholesterol, triglycerides, high-density lipoprotein, low-density lipoprotein, calcium, phosphorus, magnesium and potassium. Pancreas tissue was examined for pathology. Induction of DM caused increased serum concentrations of inflammation and oxidative damage markers. DM also caused hyperglycemia-hyperlipidemia and decreased serum concentration of minerals. The islets of Langerhans were degenerated and necrotic. Administration of OA reversed the adverse effects of DM. OA treatment can ameliorate inflammation and oxidative damage due to DM by normalizing hyperglycemia and decreasing TLR-9, IL-18, NF-κB and MDA levels.
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Affiliation(s)
- Hatice Iskender
- Department of Nutrition and Dietetics, Faculty of Healthy Sciences, Artvin Coruh University, Artvin, Turkey
| | - Eda Dokumacioglu
- Department of Nutrition and Dietetics, Faculty of Healthy Sciences, Artvin Coruh University, Artvin, Turkey
| | | | - Guler Yenice
- Department of Animal Nutrition and Nutritional Disorders, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - Behzat Mohtare
- Department of Pathology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - Ismail Bolat
- Department of Pathology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - Armagan Hayirli
- Department of Animal Nutrition and Nutritional Disorders, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
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Mukhuty A, Fouzder C, Kundu R. Blocking TLR4-NF-κB pathway protects mouse islets from the combinatorial impact of high fat and fetuin-A mediated dysfunction and restores ability for insulin secretion. Mol Cell Endocrinol 2021; 532:111314. [PMID: 33989718 DOI: 10.1016/j.mce.2021.111314] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 04/11/2021] [Accepted: 04/30/2021] [Indexed: 12/12/2022]
Abstract
Lipid mediated pancreatic β-cell dysfunction during Type 2 diabetes is known to be regulated by activation of TLR4 (Toll Like Receptor 4) and NF-κB (Nuclear factor kappa B). Recently we have reported that MIN6 cells (mouse insulinoma cells) secrete fetuin-A on stimulation by palmitate that aggravates β-cell dysfunction, but the mechanism involved in-vivo has not been demonstrated and thus remained unclear. Here we attempted to dissect the role of palmitate and fetuin-A on insulin secretion using high fat diet (HFD) fed mice model. HFD islets showed curtailed insulin secretion after 20 weeks of treatment with activated TLR4-NF-κB pathway. Further treatment of islets with palmitate raised fetuin-A expression by ~2.8 folds and cut down insulin secretion by ~1.4 folds. However, blocking the activity of TLR4, fetuin-A and NF-κB using specific inhibitors or siRNAs not only restored insulin secretion by ~2 folds in standard diet fed mice islets and MIN6 cells but also evoke insulin secretory ability by ~2.3 folds in HFD islets. Altogether this study demonstrated that blocking TLR4, fetuin-A and NF-κB protect pancreatic β-cells from the negative effects of free fatty acid and fetuin-A and restore insulin secretion.
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Affiliation(s)
- Alpana Mukhuty
- Cell Signaling Laboratory, Department of Zoology, Visva-Bharati University, Santiniketan, 731 235, India
| | - Chandrani Fouzder
- Cell Signaling Laboratory, Department of Zoology, Visva-Bharati University, Santiniketan, 731 235, India
| | - Rakesh Kundu
- Cell Signaling Laboratory, Department of Zoology, Visva-Bharati University, Santiniketan, 731 235, India.
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Obesity and dietary fat influence dopamine neurotransmission: exploring the convergence of metabolic state, physiological stress, and inflammation on dopaminergic control of food intake. Nutr Res Rev 2021; 35:236-251. [PMID: 34184629 DOI: 10.1017/s0954422421000196] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The aim of this review is to explore how metabolic changes induced by diets high in saturated fat (HFD) affect nucleus accumbens (NAc) dopamine neurotransmission and food intake, and to explore how stress and inflammation influence this process. Recent evidence linked diet-induced obesity and HFD with reduced dopamine release and reuptake. Altered dopamine neurotransmission could disrupt satiety circuits between NAc dopamine terminals and projections to the hypothalamus. The NAc directs learning and motivated behaviours based on homeostatic needs and psychological states. Therefore, impaired dopaminergic responses to palatable food could contribute to weight gain by disrupting responses to food cues or stress, which impacts type and quantity of food consumed. Specifically, saturated fat promotes neuronal resistance to anorectic hormones and activation of immune cells that release proinflammatory cytokines. Insulin has been shown to regulate dopamine neurotransmission by enhancing satiety, but less is known about effects of diet-induced stress. Therefore, changes to dopamine signalling due to HFD warrant further examination to characterise crosstalk of cytokines with endocrine and neurotransmitter signals. A HFD promotes a proinflammatory environment that may disrupt neuronal endocrine function and dopamine signalling that could be exacerbated by the hypothalamic-pituitary-adrenal and κ-opioid receptor stress systems. Together, these adaptive changes may dysregulate eating by changing NAc dopamine during hedonic versus homeostatic food intake. This could drive palatable food cravings during energy restriction and hinder weight loss. Understanding links between HFD and dopamine neurotransmission will inform treatment strategies for diet-induced obesity and identify molecular candidates for targeted therapeutics.
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Eritoran Attenuates Hepatic Inflammation and Fibrosis in Mice with Chronic Liver Injury. Cells 2021; 10:cells10061562. [PMID: 34205789 PMCID: PMC8235164 DOI: 10.3390/cells10061562] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 06/10/2021] [Accepted: 06/18/2021] [Indexed: 12/13/2022] Open
Abstract
Toll-like receptor 4 (TLR4) signaling plays a key role in liver inflammation and fibrosis. The therapeutic effects of eritoran, a TLR4 antagonist, in mice with chronic liver injury remained unclear. C57BL/6 mice were fed a fast-food diet (FFD) or treated with carbon tetrachloride (CCl4) to induce chronic liver injury. Eritoran (10 mg/kg) or a vehicle was randomly intraperitoneally administered to the FFD-fed mice and the CCl4-injured mice. Primary mouse liver cells were cultured with lipopolysaccharide (LPS) or eritoran. In both FFD and CCl4 mouse models, eritoran significantly reduced serum ALT levels and decreased hepatic inflammatory cell infiltration without altering hepatic steatosis. Additionally, eritoran attenuated liver fibrosis by decreasing hepatic stellate cells (HSCs) activation and the abundance of α-smooth muscle actin and transforming growth factor-β1. Hepatic TLR4 downstream signaling including MyD88 expression, NF-κB p65 nuclear translocation, p38 and JNK phosphorylation were successfully inhibited by eritoran. In the in vitro study, LPS-induced nuclear translocation of NF-κB in primary HSCs and Kupffer cells was significantly suppressed by eritoran. In conclusion, eritoran attenuated hepatic inflammation and fibrosis by inhibition of the TLR4 signaling pathway in mice with chronic liver injury. Eritoran may serve as a potential drug for chronic liver disease.
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Nonalcoholic Fatty Liver Disease (NAFLD) as Model of Gut-Liver Axis Interaction: From Pathophysiology to Potential Target of Treatment for Personalized Therapy. Int J Mol Sci 2021; 22:ijms22126485. [PMID: 34204274 PMCID: PMC8233936 DOI: 10.3390/ijms22126485] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 06/13/2021] [Accepted: 06/14/2021] [Indexed: 02/07/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is the leading cause of liver disease worldwide, affecting both adults and children and will result, in the near future, as the leading cause of end-stage liver disease. Indeed, its prevalence is rapidly increasing, and NAFLD is becoming a major public health concern. For this reason, great efforts are needed to identify its pathogenetic factors and new therapeutic approaches. In the past decade, enormous advances understanding the gut-liver axis-the complex network of cross-talking between the gut, microbiome and liver through the portal circulation-have elucidated its role as one of the main actors in the pathogenesis of NAFLD. Indeed, evidence shows that gut microbiota is involved in the development and progression of liver steatosis, inflammation and fibrosis seen in the context of NAFLD, as well as in the process of hepatocarcinogenesis. As a result, gut microbiota is currently emerging as a non-invasive biomarker for the diagnosis of disease and for the assessment of its severity. Additionally, to its enormous diagnostic potential, gut microbiota is currently studied as a therapeutic target in NAFLD: several different approaches targeting the gut homeostasis such as antibiotics, prebiotics, probiotics, symbiotics, adsorbents, bariatric surgery and fecal microbiota transplantation are emerging as promising therapeutic options.
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Tsai YW, Lu CH, Chang RCA, Hsu YP, Ho LT, Shih KC. Palmitoleic acid ameliorates palmitic acid-induced proinflammation in J774A.1 macrophages via TLR4-dependent and TNF-α-independent signallings. Prostaglandins Leukot Essent Fatty Acids 2021; 169:102270. [PMID: 33930845 DOI: 10.1016/j.plefa.2021.102270] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 02/17/2021] [Accepted: 03/22/2021] [Indexed: 12/27/2022]
Abstract
Adipose tissue resident macrophages play an important role in the regulation of the inflammatory response. Monounsaturated fatty acids assist in the prevention of cardiovascular diseases via an anti-inflammatory effect. However, the mechanisms by which monounsaturated fatty acids, such as palmitoleic acid, regulate the inflammatory response has not been well investigated. In this study, we found that a high concentration of palmitic acid induced J774A.1 murine macrophages toward a pro-inflammatory state, possibly through the activation of the TLR2 or TLR4 genes, and their downstream signaling pathways. In contrast, palmitoleic acid induced a protective effect against inflammation in macrophage of non-obese rodents by inducing an alternative activation pathway via reducing TLR2 or TLR4 signaling. This study indicates that the balance of palmitic acid (saturated fatty acid) and palmitoleic acid (monounsaturated fatty acid) effects macrophage activation. The potential therapeutic impact of palmitoleic acid to ameliorate non-obese-mediated inflammation warrants further investigation.
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Affiliation(s)
- Yi-Wen Tsai
- Department of Family Medicine, Chang Gung Memorial Hospital, Keelung, and Chang Gung University College of Medicine, No.259, Wenhua 1st Rd., Guishan Dist., Taoyuan City 33302, Taiwan; Graduate Institute of Medical Sciences, National Defence Medical Canter, No.161, Sec. 6, Minquan E. Rd., Neihu Dist., Taipei City 11490, Taiwan
| | - Chieh-Hua Lu
- Division of Endocrinology and Metabolism, Department of Medicine, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, No.325, Sec.2, Chenggong Rd., Neihu District, Taipei City 11490, Taiwan
| | - Richard Cheng-An Chang
- Department of Developmental and Cell Biology, University of California, University of California, Irvine, CA 92697-2300, United States
| | - Yung-Pei Hsu
- Departments of Medical Research, and Internal Medicine, Taipei Veterans General Hospital, No.201, Sec. 2, Shipai Rd., Beitou District, Taipei City 11217, Taiwan
| | - Low-Tone Ho
- Departments of Medical Research, and Internal Medicine, Taipei Veterans General Hospital, No.201, Sec. 2, Shipai Rd., Beitou District, Taipei City 11217, Taiwan; School of Medicine, National Yang-Ming University, No.155, Sec.2, Linong Street, Taipei, 112 Taiwan
| | - Kuang-Chung Shih
- Division of Endocrinology and Metabolism, Department of Medicine, Tri-Service General Hospital, School of Medicine, National Defense Medical Center, No.325, Sec.2, Chenggong Rd., Neihu District, Taipei City 11490, Taiwan; School of Medicine, National Yang-Ming University, No.155, Sec.2, Linong Street, Taipei, 112 Taiwan; Division of Endocrinology and Metabolism, Department of Medicine, Cheng-Hsin General Hospital, No.45, Cheng Hsin St., Beitou, Taipei 112, Taiwan.
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Liu H, Zhang M, Ma Q, Tian B, Nie C, Chen Z, Li J. Health beneficial effects of resistant starch on diabetes and obesity via regulation of gut microbiota: a review. Food Funct 2021; 11:5749-5767. [PMID: 32602874 DOI: 10.1039/d0fo00855a] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Resistant starch (RS) is well known to prevent type 2 diabetes mellitus (T2DM) and obesity. Recently, attention has been paid to gut microbiota which mediates the RS's impact on T2DM and obesity, while a mechanistic understanding of how RS prevents T2DM and obesity through gut microbiota is not clear yet. Therefore, this review aims at exploring the underlying mechanisms of it. RS prevents T2DM and obesity through gut microbiota by modifying selective microbial composition to produce starch-degrading enzymes, promoting the production of intestinal metabolites, and improving gut barrier function. Therefore, RS possessing good functional features can be used to increase the fiber content of healthier food. Furthermore, achieving highly selective effects on gut microbiota based on the slight differences of RS's chemical structure and focusing on the effects of RS on strain-levels are essential to manipulate the microbiota for human health.
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Affiliation(s)
- Huicui Liu
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi Province 712100, People's Republic of China.
| | - Min Zhang
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi Province 712100, People's Republic of China.
| | - Qingyu Ma
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi Province 712100, People's Republic of China.
| | - Baoming Tian
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi Province 712100, People's Republic of China.
| | - Chenxi Nie
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi Province 712100, People's Republic of China.
| | - Zhifei Chen
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi Province 712100, People's Republic of China.
| | - Juxiu Li
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi Province 712100, People's Republic of China.
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Hayashi M, Iwashita M, Nishimura Y, Shinjo T, Sano T, Yamashita A, Fukuda T, Sanui T, Asano T, Nishimura F. Adipose-specific C-C motif chemokine ligand (CCL) 19 overexpression drives the mice to both insulin resistance and weight gain. BMJ Open Diabetes Res Care 2021; 9:9/1/e001871. [PMID: 34031140 PMCID: PMC8149363 DOI: 10.1136/bmjdrc-2020-001871] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 04/09/2021] [Accepted: 05/02/2021] [Indexed: 12/20/2022] Open
Abstract
INTRODUCTION Enlarged adipose tissue is characterized by infiltration of activated immune cells and increased expression of chemokines recruiting these cells including C-C motif ligand 19 (CCL19), although the role of adipose CCL19 is still inconclusive. RESEARCH DESIGN AND METHODS Adipocyte-specific Ccl19 knock-in (KI) mice were generated, and the mice were fed either a normal diet or 40% or 60% fat diet (FD) to investigate the effects of CCL19 on the induction of inflammation and lipid metabolism. RESULTS Ccl19KI mice exhibited increased inflammatory signs in adipose tissue and enlarged subcutaneous white and brown adipose tissue than those of wild-type (WT) mice. The adipose tissue of Ccl19KI mice was characterized by increased extracellular signal-regulated kinase 1/2 and decreased AMP-activated protein kinase α phosphorylation. The protein expression of peroxisome proliferator-activated receptor γ coactivator 1α and uncoupling protein 1 was significantly reduced in brown adipose tissue of Ccl19KI mice compared with that in WT mice. The most remarkable changes between genotypes were observed in mice fed a 40% FD. CONCLUSION A 40% FD enhanced the effects of CCL19 overexpression, and these mice could be a suitable model to study metabolic disorders in overweight Asians.
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Affiliation(s)
- Masato Hayashi
- Section of Periodontology, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Misaki Iwashita
- Section of Periodontology, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Yuki Nishimura
- Section of Periodontology, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Takanori Shinjo
- Section of Periodontology, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Tomomi Sano
- Section of Periodontology, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Akiko Yamashita
- Section of Periodontology, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Takao Fukuda
- Section of Periodontology, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Terukazu Sanui
- Section of Periodontology, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Tomoichiro Asano
- Department of Medical Science, Graduate School of Medicine, Hiroshima University, Hiroshima, Japan
| | - Fusanori Nishimura
- Section of Periodontology, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
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Du P, Zhou J, Zhang L, Zhang J, Li N, Zhao C, Tu L, Zheng Y, Xia T, Luo J, Song J, Wang M. GC × GC-MS analysis and hypolipidemic effects of polyphenol extracts from Shanxi-aged vinegar in rats under a high fat diet. Food Funct 2021; 11:7468-7480. [PMID: 32808637 DOI: 10.1039/d0fo01266a] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Oxidative stress, inflammation and gut microbiota disorders can be induced by long-term high-fat diets (HFD). In order to confirm that polyphenols can improve these symptoms, polyphenols from Shanxi-aged vinegar (SAVEP) were extracted, and the components were detected by Comprehensive two-dimensional gas chromatography mass spectrometry (GC × GC-MS). 41 polyphenols include 18 phenolic acids and 17 polyphenols, which have not been reported. The mechanism of SAVEP on oxidative stress and inflammatory stress induced by HFD in rats and its regulating effect on intestinal flora disorder were studied. The results showed that SAVEP could significantly improve the lipid, inflammatory stress and oxidative stress related indicators compared with the Model group ("Model" refers to the group that successfully constructed a hyperlipidemia model by feeding HFD without any drugs or SAVEP in subsequent experiments.). In addition, SAVEP decreased the Firmicutes/Bacteroidetes ratio compared with the Model group, and elevated the relative abundance of beneficial bacteria. Conclusively, SAVEP can alleviate the oxidative stress and inflammatory stress caused by HFD, improving intestinal microbial disorders. The Spearman's correlation analysis revealed that Desulfovibrio, Lactobacillus and Akkermansia were correlated negatively with all of the inflammatory indicators, whereas Ruminococcus was the opposite. These results suggest that SAVEP may be a novel strategy against oxidative stress and inflammation, restoring the normal microbial community ecology of the gut and the treatment of metabolic syndromes.
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Affiliation(s)
- Peng Du
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Junhan Zhou
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Li Zhang
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Jiaojiao Zhang
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Nan Li
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Chaoya Zhao
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China. and School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Linna Tu
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Yu Zheng
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Ting Xia
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Jianmei Luo
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Jia Song
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Min Wang
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China.
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Garg R, Kumariya S, Katekar R, Verma S, Goand UK, Gayen JR. JNK signaling pathway in metabolic disorders: An emerging therapeutic target. Eur J Pharmacol 2021; 901:174079. [PMID: 33812885 DOI: 10.1016/j.ejphar.2021.174079] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 03/18/2021] [Accepted: 03/25/2021] [Indexed: 02/08/2023]
Abstract
Metabolic Syndrome is a multifactorial disease associated with increased risk of cardiovascular disorders, type 2 diabetes mellitus, fatty liver disease, etc. Various stress stimuli such as reactive oxygen species, endoplasmic reticulum stress, mitochondrial dysfunction, increased cytokines, or free fatty acids are known to aggravate progressive development of hyperglycemia and hyperlipidemia. Although the exact mechanism contributing to altered metabolism is unclear. Evidence suggests stress kinase role to be a crucial one in metabolic syndrome. Stress kinase, c-jun N-terminal kinase activation (JNK) is involved in various metabolic manifestations including obesity, insulin resistance, fatty liver disease as well as cardiometabolic disorders. It emerged as a foremost mediator in regulating metabolism in the liver, skeletal muscle, adipose tissue as well as pancreatic β cells. It has three isoforms each having a unique and tissue-specific role in altered metabolism. Current findings based on genetic manipulation or chemical inhibition studies identified JNK isoforms to play a central role in the regulation of whole-body metabolism, suggesting it to be a novel therapeutic target. Hence, it is imperative to elucidate its role in metabolic syndrome onset and progression. The purpose of this review is to elucidate in vitro and in vivo implications of JNK signaling along with the therapeutic strategy to inhibit specific isoform. Since metabolic syndrome is an array of diseases and complex pathway, carefully examining each tissue will be important for specific treatment strategies.
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Affiliation(s)
- Richa Garg
- Pharmaceutics & Pharmacokinetics, CSIR-Central Drug Research Institute, Jankipuram Extension, Lucknow, 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Sanjana Kumariya
- Pharmaceutics & Pharmacokinetics, CSIR-Central Drug Research Institute, Jankipuram Extension, Lucknow, 226031, India
| | - Roshan Katekar
- Pharmaceutics & Pharmacokinetics, CSIR-Central Drug Research Institute, Jankipuram Extension, Lucknow, 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Saurabh Verma
- Pharmaceutics & Pharmacokinetics, CSIR-Central Drug Research Institute, Jankipuram Extension, Lucknow, 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Umesh K Goand
- Pharmaceutics & Pharmacokinetics, CSIR-Central Drug Research Institute, Jankipuram Extension, Lucknow, 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Jiaur R Gayen
- Pharmaceutics & Pharmacokinetics, CSIR-Central Drug Research Institute, Jankipuram Extension, Lucknow, 226031, India; Pharmacology Division, CSIR-Central Drug Research Institute, Jankipuram Extension, Lucknow, 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Bahadar GA, Shah ZA. Intracerebral Hemorrhage and Diabetes Mellitus: Blood-Brain Barrier Disruption, Pathophysiology, and Cognitive Impairments. CNS & NEUROLOGICAL DISORDERS-DRUG TARGETS 2021; 20:312-326. [PMID: 33622232 DOI: 10.2174/1871527320666210223145112] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 10/15/2020] [Accepted: 11/02/2020] [Indexed: 11/22/2022]
Abstract
There is a surge in diabetes incidence with an estimated 463 million individuals been diagnosed worldwide. Diabetes Mellitus (DM) is a major stroke-related comorbid condition that increases the susceptibility of disabling post-stroke outcomes. Although less common, intracerebral hemorrhage (ICH) is the most dramatic subtype of stroke that is associated with higher mortality, particularly in DM population. Previous studies have focused mainly on the impact of DM on ischemic stroke. Few studies have focused on impact of DM on ICH and discussed the blood-brain barrier disruption, brain edema, and hematoma formation. However, more recently, investigating the role of oxidative damage and reactive oxygen species (ROS) production in preclinical studies involving DM-ICH animal models has gained attention. But, little is known about the correlation between neuroinflammatory processes, glial cells activation, and peripheral immune cell invasion with DM-ICH injury. DM and ICH patients experience impaired abilities in multiple cognitive domains by relatively comparable mechanisms, which could get exacerbated in the setting of comorbidities. In this review, we discuss both the pathology of DM as a comorbid condition for ICH and the potential molecular therapeutic targets for the clinical management of the ICH and its recovery.
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Affiliation(s)
- Ghaith A Bahadar
- Department of Medicinal and Biological Chemistry, College of Pharmacy and Pharmaceutical Sciences, University of Toledo, Toledo, OH 43614. United States
| | - Zahoor A Shah
- Department of Medicinal and Biological Chemistry, College of Pharmacy and Pharmaceutical Sciences, University of Toledo, Toledo, OH 43614. United States
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From Obesity to Hippocampal Neurodegeneration: Pathogenesis and Non-Pharmacological Interventions. Int J Mol Sci 2020; 22:ijms22010201. [PMID: 33379163 PMCID: PMC7796248 DOI: 10.3390/ijms22010201] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/21/2020] [Accepted: 12/23/2020] [Indexed: 12/16/2022] Open
Abstract
High-caloric diet and physical inactivity predispose individuals to obesity and diabetes, which are risk factors of hippocampal neurodegeneration and cognitive deficits. Along with the adipose-hippocampus crosstalk, chronically inflamed adipose tissue secretes inflammatory cytokine could trigger neuroinflammatory responses in the hippocampus, and in turn, impairs hippocampal neuroplasticity under obese and diabetic conditions. Hence, caloric restriction and physical exercise are critical non-pharmacological interventions to halt the pathogenesis from obesity to hippocampal neurodegeneration. In response to physical exercise, peripheral organs, including the adipose tissue, skeletal muscles, and liver, can secret numerous exerkines, which bring beneficial effects to metabolic and brain health. In this review, we summarized how chronic inflammation in adipose tissue could trigger neuroinflammation and hippocampal impairment, which potentially contribute to cognitive deficits in obese and diabetic conditions. We also discussed the potential mechanisms underlying the neurotrophic and neuroprotective effects of caloric restriction and physical exercise by counteracting neuroinflammation, plasticity deficits, and cognitive impairments. This review provides timely insights into how chronic metabolic disorders, like obesity, could impair brain health and cognitive functions in later life.
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Najafi S, Rajaei E, Moallemian R, Nokhostin F. The potential similarities of COVID-19 and autoimmune disease pathogenesis and therapeutic options: new insights approach. Clin Rheumatol 2020; 39:3223-3235. [PMID: 32885345 PMCID: PMC7471540 DOI: 10.1007/s10067-020-05376-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/23/2020] [Accepted: 08/27/2020] [Indexed: 12/29/2022]
Abstract
Cytokine pathways and their signaling disorders can be the cause of onset and pathogenesis of many diseases such as autoimmune diseases and COVID-19 infection. Autoimmune patients may be at higher risk of developing infection due to the impaired immune responses, the use of immunosuppressive drugs, and damage to various organs. Increased secretion of inflammatory cytokines and intolerance of the patient's immune system to COVID-19 infection are the leading causes of hospitalization of these patients. The content used in this paper has been taken from English language articles (2005-2020) retrieved from the PubMed database and Google Scholar search engine using "COVID-19," "Autoimmune disease," "Therapeutic," "Pathogenesis," and "Pathway" keywords. The emergence of COVID-19 and its association with autoimmune disorders is a major challenge in the management of these diseases. The results showed that the use of corticosteroids in the treatment of autoimmune diseases can make diagnosis and treatment of COVID-19 more challenging by preventing the fever. Due to the common pathogenesis of COVID-19 and autoimmune diseases, the use of autoimmune drugs as a possible treatment option could help control the virus. KEY POINTS: • Inflammatory cytokines play an essential role in the pathogenesis of COVID-19 • ACE2 dysfunctions are related to the with COVID-19 and autoimmune diseases • The use autoimmune diseases drugs can be useful in treating COVID-19.
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Affiliation(s)
- Sahar Najafi
- Thalassemia & Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Elham Rajaei
- Golestan Hospital Clinical Research Development Unit, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Rezvan Moallemian
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, Sheng Yushou Center of Cell Biology and Immunology, School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240 China
| | - Forough Nokhostin
- Internal medicine, Faculty of Medicine, Ahvaz Jundishapur University of Medical Science, Ahvaz, Iran
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Wu HM, Ni XX, Xu QY, Wang Q, Li XY, Hua J. Regulation of lipid-induced macrophage polarization through modulating peroxisome proliferator-activated receptor-gamma activity affects hepatic lipid metabolism via a Toll-like receptor 4/NF-κB signaling pathway. J Gastroenterol Hepatol 2020; 35:1998-2008. [PMID: 32128893 DOI: 10.1111/jgh.15025] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 02/21/2020] [Accepted: 03/01/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIM Chronic inflammation links closely to insulin resistance and lipid metabolism in nonalcoholic fatty liver disease (NAFLD). Macrophage M1 activation plays an important role in the initiation and continuing of pro-inflammatory response of NAFLD. Our study was to investigate whether macrophage M1/M2 polarization switching would affect hepatic inflammation and lipid metabolism through modulation of peroxisome proliferator-activated receptor-gamma (PPAR-γ) activity in vivo and in vitro. METHODS RAW264.7 macrophages were treated with different fatty acids, and cell culture supernatants were collected to prepare conditioned media (CM). Different co-culture systems between primary hepatocytes and CM from macrophages were established. A PPAR-γ agonist or antagonist was administered to regulate PPAR-γ activity and macrophage polarization. M1/M2 phenotype markers, inflammatory signaling pathway, and lipid-related genes expression were determined. Wild-type C57BL/6 mice were fed a high-fat diet to induce NAFLD and given rosiglitazone to regulate PPAR-γ activity in vivo. RESULTS Saturated fatty acids induced M1-polarized macrophages while polyunsaturated fatty acids induced M2-polarized macrophages. M1-polarized macrophages significantly promoted lipid synthesis and accumulation in primary hepatocytes through upregulation of a toll-like receptor 4 (TLR4)/NF-κB signaling pathway. The PPAR-γ agonist made lipid-induced M1-polarized macrophages switch to an M2-predominant phenotype, while PPAR-γ antagonist had the opposite effect. Macrophage polarization shifting subsequently affected lipid metabolism in primary hepatocytes. Administration of rosiglitazone improved high-fat diet induced hepatic steatosis and lipid metabolism through reducing hepatic TLR4/NF-κB expression and M1-polarized Kupffer cells. CONCLUSIONS Lipid-induced macrophage M1 polarization promoted hepatic lipid metabolism. Modulation of PPAR-γ activity could shift macrophage polarization and subsequently affect lipid metabolism. Upregulation of the TLR4/NF-κB signaling pathway is closely linked to dysregulated lipid metabolism in NAFLD.
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Affiliation(s)
- Hui-Min Wu
- Department of Gastroenterology, Shanghai Institute of Digestive Disease; Key Laboratory of Gastroenterology and Hepatology, Ministry of Health; Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xi-Xi Ni
- Department of Gastroenterology, Shanghai Institute of Digestive Disease; Key Laboratory of Gastroenterology and Hepatology, Ministry of Health; Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qin-Yu Xu
- Department of Gastroenterology, Zhongshan Hospital, Xiamen University, Xiamen, China
| | - Qi Wang
- Department of Gastroenterology, Shanghai Institute of Digestive Disease; Key Laboratory of Gastroenterology and Hepatology, Ministry of Health; Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiao-Yun Li
- Department of Gastroenterology, Shanghai Institute of Digestive Disease; Key Laboratory of Gastroenterology and Hepatology, Ministry of Health; Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jing Hua
- Department of Gastroenterology, Shanghai Institute of Digestive Disease; Key Laboratory of Gastroenterology and Hepatology, Ministry of Health; Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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