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Matsuo H, Matsui R, Kumagai K, Ida S, Saino Y, Fujiwara A, Takagi K, Itami Y, Ishii M, Moriya N, Izumi-Mishima Y, Nomura K, Tsutsumi YM, Nunobe S, Tsutsumi R, Sakaue H. Reply to Lee, S.Y. Comment on "Matsuo et al. Impact of Olfactory Change on Postoperative Body Weight Loss in Patients with Gastric Cancer after Gastrectomy. Nutrients 2024, 16, 851". Nutrients 2024; 16:2423. [PMID: 39125304 PMCID: PMC11314108 DOI: 10.3390/nu16152423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 06/25/2024] [Indexed: 08/12/2024] Open
Abstract
Dr [...].
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Affiliation(s)
- Hiromi Matsuo
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto, Tokushima 770-8503, Japan; (H.M.); (H.S.)
- Department of Nutrition Management, Cancer Institute Hospital of JFCR, 3-8-31 Ariake, Koto-ku, Tokyo 135-0063, Japan
| | - Ryota Matsui
- Department of Gastroenterological Surgery, Cancer Institute Hospital of JFCR, 3-8-31 Ariake, Koto-ku, Tokyo 135-0063, Japan
| | - Koshi Kumagai
- Department of Gastroenterological Surgery, Cancer Institute Hospital of JFCR, 3-8-31 Ariake, Koto-ku, Tokyo 135-0063, Japan
- Department of Upper Gastrointestinal Surgery, Kitasato University Hospital, 1-15-1 Kitasato, Minami-ku, Sagamihara-shi 252-0375, Japan
| | - Satoshi Ida
- Department of Gastroenterological Surgery, Cancer Institute Hospital of JFCR, 3-8-31 Ariake, Koto-ku, Tokyo 135-0063, Japan
- Department of Gastroenterological Surgery, Kumamoto University Hospital, 1-1-1 Honjo, Chuo-ku, Kumamoto-shi 860-8556, Japan
| | - Yoko Saino
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto, Tokushima 770-8503, Japan; (H.M.); (H.S.)
- Department of Nutrition Management, Cancer Institute Hospital of JFCR, 3-8-31 Ariake, Koto-ku, Tokyo 135-0063, Japan
| | - Aya Fujiwara
- Department of Nutrition Management, Cancer Institute Hospital of JFCR, 3-8-31 Ariake, Koto-ku, Tokyo 135-0063, Japan
| | - Kumi Takagi
- Department of Nutrition Management, Cancer Institute Hospital of JFCR, 3-8-31 Ariake, Koto-ku, Tokyo 135-0063, Japan
| | - Yukiko Itami
- Department of Nutrition Management, Cancer Institute Hospital of JFCR, 3-8-31 Ariake, Koto-ku, Tokyo 135-0063, Japan
| | - Misuzu Ishii
- Department of Nutrition Management, Cancer Institute Hospital of JFCR, 3-8-31 Ariake, Koto-ku, Tokyo 135-0063, Japan
| | - Naoki Moriya
- Department of Nutrition Management, Cancer Institute Hospital of JFCR, 3-8-31 Ariake, Koto-ku, Tokyo 135-0063, Japan
| | - Yuna Izumi-Mishima
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto, Tokushima 770-8503, Japan; (H.M.); (H.S.)
| | - Kazuhiro Nomura
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto, Tokushima 770-8503, Japan; (H.M.); (H.S.)
| | - Yasuo M. Tsutsumi
- Department of Anesthesiology and Critical Care, Hiroshima University, 1-2-3 Kasumi, Hiroshima 734-8551, Japan
| | - Souya Nunobe
- Department of Gastroenterological Surgery, Cancer Institute Hospital of JFCR, 3-8-31 Ariake, Koto-ku, Tokyo 135-0063, Japan
| | - Rie Tsutsumi
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto, Tokushima 770-8503, Japan; (H.M.); (H.S.)
- Department of Anesthesiology and Critical Care, Hiroshima University, 1-2-3 Kasumi, Hiroshima 734-8551, Japan
| | - Hiroshi Sakaue
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto, Tokushima 770-8503, Japan; (H.M.); (H.S.)
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Zhang J, Yang G, Liu J, Lin Z, Zhang J, Zhao J, Sun G, Lin H. Glucagon-like peptide-1 analog liraglutide reduces fat deposition in chicken adipocytes. Poult Sci 2024; 103:103766. [PMID: 38759567 PMCID: PMC11107459 DOI: 10.1016/j.psj.2024.103766] [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: 11/22/2023] [Revised: 04/07/2024] [Accepted: 04/09/2024] [Indexed: 05/19/2024] Open
Abstract
Previously, we reported that glucagon-like peptide-1 (GLP-1) and its analog liraglutide could inhibit fat de novo synthesis in the liver and reduce abdominal fat accumulation in broiler chickens. Nevertheless, the impact of GLP-1 on adipocyte fat deposition remains enigmatic. This study aimed to investigate the effects of GLP-1, via its analog liraglutide, on chicken chicken adipocytes in vitro. Chemical assays, quantitative real-time polymerase chain reaction (qRT-PCR), and western blot were employed to assess the proliferation, differentiation, and fat deposition of chicken adipocytes. Our findings indicated that liraglutide significantly suppressed cell proliferation and promoted preadipocyte differentiation in comparison to the control group. This was evidenced by elevated triglyceride (TG) content and upregulated mRNA expression of lipogenesis-related enzymes, such as acetyl-CoA carboxylase (ACC) and fatty acid synthase (FAS), as well as regulators including peroxisome proliferator-activated receptor γ (PPARγ), sterol regulatory element binding protein-1 (SREBP1) and CCAAT/enhancer binding protein α (CEBPα). In mature adipocytes, liraglutide attenuated fat deposition by inhibiting fat de novo synthesis, evidenced by decreased mRNA expression of ACC, FAS, PPARγ, C/EBPα, and SREBP1, and concurrent upregulation of phosphorylated AMP-activated protein kinase (p-AMPK) and phosphorylated ACC (p-ACC). This resulted in reduced accumulation of lipid droplets and TG content in mature adipocytes. Collectively, our findings indicate that liraglutide suppresses the proliferation of preadipocytes, enhances their differentiation, and concurrently inhibits de novo lipogenesis in mature adipocytes. This observation offers profound insights into the mechanisms that underlie liraglutide's anti-adipogenic effects, which could have significant implications for the treatment of obesity in broiler chickens.
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Affiliation(s)
- Jianmei Zhang
- Laboratory of Animal Genetics, Breeding and Reproduction, College of Life Sciences and Enology, Tai'shan University, Tai'an, 271018, Shandong, China
| | - Guangcheng Yang
- Laboratory of Animal Genetics, Breeding and Reproduction, College of Life Sciences and Enology, Tai'shan University, Tai'an, 271018, Shandong, China
| | - Jingbo Liu
- Laboratory of Animal Genetics, Breeding and Reproduction, College of Life Sciences and Enology, Tai'shan University, Tai'an, 271018, Shandong, China
| | - Zhenxian Lin
- Laboratory of Animal Genetics, Breeding and Reproduction, College of Life Sciences and Enology, Tai'shan University, Tai'an, 271018, Shandong, China
| | - Jie Zhang
- Laboratory of Animal Genetics, Breeding and Reproduction, College of Life Sciences and Enology, Tai'shan University, Tai'an, 271018, Shandong, China
| | - Jin Zhao
- Laboratory of Animal Genetics, Breeding and Reproduction, College of Life Sciences and Enology, Tai'shan University, Tai'an, 271018, Shandong, China
| | - Guozheng Sun
- Laboratory of Animal Genetics, Breeding and Reproduction, College of Life Sciences and Enology, Tai'shan University, Tai'an, 271018, Shandong, China
| | - Hai Lin
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Shandong Key Lab for Animal Biotechnology and Disease Control, Tai'an, China.
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Balantekin KN, Kretz MJ, Mietlicki-Baase EG. The emerging role of glucagon-like peptide 1 in binge eating. J Endocrinol 2024; 262:e230405. [PMID: 38642585 PMCID: PMC11156433 DOI: 10.1530/joe-23-0405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 04/16/2024] [Indexed: 04/22/2024]
Abstract
Binge eating is a central component of two clinical eating disorders: binge eating disorder and bulimia nervosa. However, the large treatment gap highlights the need to identify other strategies to decrease binge eating. Novel pharmacotherapies may be one such approach. Glucagon-like peptide-1 (GLP-1) is an intestinal and brain-derived neuroendocrine signal with a critical role in promoting glycemic control through its incretin effect. Additionally, the energy balance effects of GLP-1 are well-established; activation of the GLP-1 receptor (GLP-1R) reduces food intake and body weight. Aligned with these beneficial metabolic effects, there are GLP-1R agonists that are currently used for the treatment of diabetes and obesity. A growing body of literature suggests that GLP-1 may also play an important role in binge eating. Dysregulation of the endogenous GLP-1 system is associated with binge eating in non-human animal models, and GLP-1R agonists may be a promising approach to suppress the overconsumption that occurs during binge eating. Here, we briefly discuss the role of GLP-1 in normal energy intake and reward and then review the emerging evidence suggesting that disruptions to GLP-1 signaling are associated with binge eating. We also consider the potential utility of GLP-1-based pharmacotherapies for reducing binge eating behavior.
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Affiliation(s)
- Katherine N. Balantekin
- Department of Exercise and Nutrition Sciences, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY 14214 USA
- Center for Ingestive Behavior Research, University at Buffalo, Buffalo, NY 14260 USA
| | - Martin J. Kretz
- Department of Exercise and Nutrition Sciences, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY 14214 USA
| | - Elizabeth G. Mietlicki-Baase
- Department of Exercise and Nutrition Sciences, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY 14214 USA
- Center for Ingestive Behavior Research, University at Buffalo, Buffalo, NY 14260 USA
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Khan TTS, Sheikh Z, Maleknia S, Oveissi F, Fathi A, Abrams T, Ong HX, Traini D. Intranasal delivery of glucagon-like peptide-1 to the brain for obesity treatment: opportunities and challenges. Expert Opin Drug Deliv 2024; 21:1081-1101. [PMID: 39086086 DOI: 10.1080/17425247.2024.2387110] [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: 04/22/2024] [Revised: 06/04/2024] [Accepted: 07/29/2024] [Indexed: 08/02/2024]
Abstract
INTRODUCTION Glucagon-like peptide-1 receptor agonists (GLP-1 RAs), approved by the US FDA for obesity treatment, are typically administered subcutaneously, an invasive method leading to suboptimal patient adherence and peripheral side effects. Additionally, this route requires the drug to cross the restrictive blood-brain barrier (BBB), limiting its safety and effectiveness in weight management and cognitive addiction disorders. Delivering the drug intranasally could overcome these drawbacks. AREAS COVERED This review summarizes GLP-1 RAs used as anti-obesity agents, focusing on the intranasal route as a potential pathway to deliver these biomolecules to the brain. It also discusses strategies to overcome challenges associated with nasal delivery. EXPERT OPINION Nose-to-brain (N2B) pathways can address limitations of the subcutaneous route for GLP-1 RAs. However, peptide delivery to the brain is challenging due to nasal physiological barriers and the drug's physicochemical properties. Innovative approaches, such as cell permeation enhancers, mucoadhesive systems, and nanocarriers in nasal formulations, along with efficient drug delivery devices, show promising preclinical results. Despite this, successful preclinical data does not guarantee clinical effectiveness, highlighting the need for comprehensive clinical investigations to optimize formulations and fully utilize the nose-to-brain interface for peptide delivery.
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Affiliation(s)
- Tanisha Tabassum Sayka Khan
- Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, New South Wales, Australia
- Respiratory Technology, Woolcock Institute of Medical Research, Sydney, New South Wales, Australia
- School of Pharmacy, Brac University, Dhaka, Bangladesh
| | - Zara Sheikh
- Respiratory Technology, Woolcock Institute of Medical Research, Sydney, New South Wales, Australia
- School of Pharmacy, Brac University, Dhaka, Bangladesh
| | - Simin Maleknia
- Tetratherix Technology Pty Ltd, Sydney, New South Wales, Australia
| | - Farshad Oveissi
- Tetratherix Technology Pty Ltd, Sydney, New South Wales, Australia
- School of Chemical and Biomolecular Engineering, The University of Sydney, Camperdown, New South Wales, Australia
| | - Ali Fathi
- Tetratherix Technology Pty Ltd, Sydney, New South Wales, Australia
- School of Chemical and Biomolecular Engineering, The University of Sydney, Camperdown, New South Wales, Australia
| | - Terence Abrams
- Tetratherix Technology Pty Ltd, Sydney, New South Wales, Australia
| | - Hui Xin Ong
- Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, New South Wales, Australia
- Respiratory Technology, Woolcock Institute of Medical Research, Sydney, New South Wales, Australia
| | - Daniela Traini
- Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, New South Wales, Australia
- Respiratory Technology, Woolcock Institute of Medical Research, Sydney, New South Wales, Australia
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Dumiaty Y, Underwood BM, Phy-Lim J, Chee MJ. Neurocircuitry underlying the actions of glucagon-like peptide 1 and peptide YY 3-36 in the suppression of food, drug-seeking, and anxiogenesis. Neuropeptides 2024; 105:102427. [PMID: 38579490 DOI: 10.1016/j.npep.2024.102427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/27/2024] [Accepted: 03/29/2024] [Indexed: 04/07/2024]
Abstract
Obesity is a critical health condition worldwide that increases the risks of comorbid chronic diseases, but it can be managed with weight loss. However, conventional interventions relying on diet and exercise are inadequate for achieving and maintaining weight loss, thus there is significant market interest for pharmaceutical anti-obesity agents. For decades, receptor agonists for the gut peptide glucagon-like peptide 1 (GLP-1) featured prominently in anti-obesity medications by suppressing appetite and food reward to elicit rapid weight loss. As the neurocircuitry underlying food motivation overlaps with that for drugs of abuse, GLP-1 receptor agonism has also been shown to decrease substance use and relapse, thus its therapeutic potential may extend beyond weight management to treat addictions. However, as prolonged use of anti-obesity drugs may increase the risk of mood-related disorders like anxiety and depression, and individuals taking GLP-1-based medication commonly report feeling demotivated, the long-term safety of such drugs is an ongoing concern. Interestingly, current research now focuses on dual agonist approaches that include GLP-1 receptor agonism to enable synergistic effects on weight loss or associated functions. GLP-1 is secreted from the same intestinal cells as the anorectic gut peptide, Peptide YY3-36 (PYY3-36), thus this review assessed the therapeutic potential and underlying neural circuits targeted by PYY3-36 when administered independently or in combination with GLP-1 to curb the appetite for food or drugs of abuse like opiates, alcohol, and nicotine. Additionally, we also reviewed animal and human studies to assess the impact, if any, for GLP-1 and/or PYY3-36 on mood-related behaviors in relation to anxiety and depression. As dual agonists targeting GLP-1 and PYY3-36 may produce synergistic effects, they can be effective at lower doses and offer an alternative approach for therapeutic benefits while mitigating undesirable side effects.
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Affiliation(s)
- Yasmina Dumiaty
- Department of Neuroscience, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada.
| | - Brett M Underwood
- Department of Neuroscience, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada.
| | - Jenny Phy-Lim
- Department of Neuroscience, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada.
| | - Melissa J Chee
- Department of Neuroscience, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada.
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Ramos Belinchón C, Martínez-Lozano H, Serrano Moreno C, Hernández Castillo D, Lois Chicharro P, Ferreira Ocampo P, Marín-Jiménez I, Bretón Lesmes I, Menchén L. Effectiveness and safety of GLP-1 agonist in obese patients with inflammatory bowel disease. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2024. [PMID: 38767015 DOI: 10.17235/reed.2024.10305/2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
BACKGROUND Obesity affects many patients with inflammatory bowel disease (IBD). Glucagon-like peptide (GLP)-1 agonists are a promising therapy for obese patients. However, there is a lack of evidence of the use of these drugs in IBD populations. We investigated the efficacy and safety of GLP-1 agonists in a cohort of obese patients with IBD. METHODS We analyzed a cohort of consecutive IBD patients who received GLP-1 agonists indicated for treating obesity between 2019 and 2021. The GLP-1 agonists included were semaglutide 1.0 mg or liraglutide 3.0 mg. The coprimary endpoints were the percentage of change in body weight from baseline to 6 months and a weight reduction of 5% or more at 6 months. In addition, we reviewed the safety profile of GLP-1 agonist therapy and its impact on the IBD course. RESULTS We included 16 obese patients with IBD (9 CD and 7 UC). The median body mass index at baseline was 35 (32-37). The percentage of change in body weight was -6.2% (-3.4-(-8.5)) at 6 months, and a 5% or more weight reduction was achieved in 58.3% (7/12) of patients at 6 months. The most common side effect was nausea (13.3%), and one patient withdrew for diarrhea. IBD activity score did not change significantly during follow-up. CONCLUSION Our results showed that GLP-1 agonists were effective and had a good safety profile in IBD patients. Most adverse effects were mild, and the IBD activity had no significant changes.
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Affiliation(s)
- Clara Ramos Belinchón
- Digestive Diseases, Hospital General Universitario-Instituto de Investigación Sanitaria Gregorio Marañón
| | - Helena Martínez-Lozano
- Digestive Diseases, Hospital General Universitario-Instituto de Investigación Sanitaria Gregorio Marañón, España
| | | | - Diego Hernández Castillo
- Digestive Diseases , Hospital General Universitario-Instituto de Investigación Sanitaria Gregorio Marañón
| | | | | | - Ignacio Marín-Jiménez
- Digestive Diseases , Hospital General Universitario-Instituto de Investigación Sanitaria Gregorio Marañón
| | - Irene Bretón Lesmes
- Endocrinology and Nutrition, Hospital General Universitario Gregorio Marañón
| | - Luis Menchén
- Digestive Diseases, Hospital General Universitario-Instituto de Investigación Sanitaria Gregorio Marañón
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Martchenko A, Papaelias A, Bolz SS. Physiologic effects of the maqui berry ( Aristotelia chilensis): a focus on metabolic homeostasis. Food Funct 2024; 15:4724-4740. [PMID: 38618933 DOI: 10.1039/d3fo02524a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
The prevalence and socioeconomic impact of metabolic diseases is rapidly growing. The limited availability of effective and affordable treatments has fuelled interest in the therapeutic potential of natural compounds as they occur in selected food sources. These compounds might help to better manage the current problems of treatment availability, affordability, and adverse effects that, in combination, limit treatment duration and efficacy at present. Specifically, berries garnered interest given a strong epidemiological link between their consumption and improved metabolic functions, making the analysis of their phytochemical composition and the identification and characterization of biologically active ingredients an emerging area of research. In this regard, the present review focuses on the South American maqui berry Aristotelia chilensis, which has been extensively used by the indigenous Mapuche population for generations to treat a variety of disease conditions. An overview of the maqui plant composition precedes a review of pre-clinical and clinical studies that investigated the effects of maqui berries and their major components on metabolic homeostasis. The final part of the review highlights possible technologies to conserve maqui berry structural and functional integrity during passage through the small intestine, ultimately aiming to augment their systemic and luminal bioavailability and biological effects. The integration of the various aspects discussed herein can assist in the development of effective maqui-based therapies to benefit the growing population of metabolically compromised patients.
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Affiliation(s)
- Alexandre Martchenko
- Department of Physiology, University of Toronto, Toronto, Canada
- Toronto Centre for Microvascular Medicine at The Ted Rogers Centre for Heart Research Translational Biology and Engineering Program, University of Toronto, 661 University Avenue, 14th Floor, Toronto, M5G 1M1, Canada.
| | - Alexandra Papaelias
- Department of Physiology, University of Toronto, Toronto, Canada
- Toronto Centre for Microvascular Medicine at The Ted Rogers Centre for Heart Research Translational Biology and Engineering Program, University of Toronto, 661 University Avenue, 14th Floor, Toronto, M5G 1M1, Canada.
| | - Steffen-Sebastian Bolz
- Department of Physiology, University of Toronto, Toronto, Canada
- Toronto Centre for Microvascular Medicine at The Ted Rogers Centre for Heart Research Translational Biology and Engineering Program, University of Toronto, 661 University Avenue, 14th Floor, Toronto, M5G 1M1, Canada.
- Heart & Stroke/Richard Lewar Centre of Excellence for Cardiovascular Research, University of Toronto, Toronto, Canada
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Han F, Zhu S, Kong X, Wang W, Wu Y. Integrated genetic and epigenetic analyses uncovered GLP1R association with metabolically healthy obesity. Int J Obes (Lond) 2024; 48:324-329. [PMID: 37978261 DOI: 10.1038/s41366-023-01414-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 10/24/2023] [Accepted: 11/07/2023] [Indexed: 11/19/2023]
Abstract
BACKGROUND Both genetic and epigenetic variations of GLP1R influence the development and progression of obesity. However, the underlying mechanism remains elusive. This study aims to explore the mediation roles of obesity-related methylation sites in GLP1R gene variants-obesity association. METHODS A total of 300 Chinese adult participants were included in this study and classified into two groups: 180 metabolically healthy obesity (MHO) cases and 120 metabolically healthy normal-weight (MHNW) controls. Questionnaire investigation, physical measurement and laboratory examination were assessed in all participants. 18 single nucleotide polymorphisms (SNPs) and 31 CpG sites were selected for genotype and methylation assays. Causal inference test (CIT) was performed to evaluate the associations between GLP1R genetic variation, DNA methylation and MHO. RESULTS The study found that rs4714211 polymorphism of GLP1R gene was significantly associated with MHO. Additionally, methylation sites in the intronic region of GLP1R (GLP1R-68-CpG 7.8.9; GLP1R-68-CpG 12.13; GLP1R-68-CpG 17; GLP1R-68-CpG 21) were associated with MHO, and two of these methylation sites (GLP1R-68-CpG 7.8.9; GLP1R-68-CpG 17) partially mediated the association between genotypes and MHO. CONCLUSIONS Not only the gene polymorphism, but also the DNA methylation of GLP1R was associated with MHO. Epigenetic changes in the methylome may in part explain the relationship between genetic variants and MHO.
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Affiliation(s)
- Fulei Han
- Department of Epidemiology and Health Statistics, Public Health College, Qingdao University, Qingdao, China
| | - Shuai Zhu
- Department of Epidemiology and Health Statistics, Public Health College, Qingdao University, Qingdao, China
| | - Xiangjie Kong
- Department of Epidemiology and Health Statistics, Public Health College, Qingdao University, Qingdao, China
| | - Weijing Wang
- Department of Epidemiology and Health Statistics, Public Health College, Qingdao University, Qingdao, China
| | - Yili Wu
- Department of Epidemiology and Health Statistics, Public Health College, Qingdao University, Qingdao, China.
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Ellinger S, Amini AM, Haardt J, Lehmann A, Schmidt A, Bischoff-Ferrari HA, Buyken AE, Kroke A, Kühn T, Louis S, Lorkowski S, Nimptsch K, Schulze MB, Schwingshackl L, Siener R, Stangl GI, Volkert D, Zittermann A, Watzl B, Egert S. Protein intake and body weight, fat mass and waist circumference: an umbrella review of systematic reviews for the evidence-based guideline on protein intake of the German Nutrition Society. Eur J Nutr 2024; 63:3-32. [PMID: 37794213 PMCID: PMC10799103 DOI: 10.1007/s00394-023-03220-x] [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: 03/30/2023] [Accepted: 07/18/2023] [Indexed: 10/06/2023]
Abstract
PURPOSE This umbrella review aimed to assess whether dietary protein intake with regard to quantitative (higher vs. lower dietary protein intake) and qualitative considerations (total, plant-based or animal-based protein intake) affects body weight (BW), fat mass (FM) and waist circumference (WC). METHODS A systematic literature search was conducted in PubMed, Embase and Cochrane Database of Systematic Reviews for systematic reviews (SRs) with and without meta-analyses of prospective studies published between 04 October 2007 and 04 January 2022. Methodological quality and outcome-specific certainty of evidence of the retrieved SRs were assessed by using AMSTAR 2 and NutriGrade, respectively, in order to rate the overall certainty of evidence using predefined criteria. RESULTS Thirty-three SRs were included in this umbrella review; 29 were based on randomised controlled trials, a few included cohort studies. In studies without energy restriction, a high-protein diet did not modulate BW, FM and WC in adults in general (all "possible" evidence); for older adults, overall certainty of evidence was "insufficient" for all parameters. Under hypoenergetic diets, a high-protein diet mostly decreased BW and FM, but evidence was "insufficient" due to low methodological quality. Evidence regarding an influence of the protein type on BW, FM and WC was "insufficient". CONCLUSION "Possible" evidence exists that the amount of protein does not affect BW, FM and WC in adults under isoenergetic conditions. Its impact on the reduction in BW and FM under hypoenergetic conditions remains unclear; evidence for an influence of protein type on BW, FM and WC is "insufficient".
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Affiliation(s)
- Sabine Ellinger
- Institute of Nutritional and Food Science, Human Nutrition, University of Bonn, Meckenheimer Allee 166a, 53115, Bonn, Germany.
| | | | | | | | | | - Heike A Bischoff-Ferrari
- Department of Aging Medicine and Aging Research, University Hospital and University of Zurich, Zurich, Switzerland
- City Hospital Zurich, Zurich, Switzerland
| | - Anette E Buyken
- Institute of Nutrition, Consumption and Health, Faculty of Natural Sciences, Paderborn University, Paderborn, Germany
| | - Anja Kroke
- Department of Nutritional, Food and Consumer Sciences, Fulda University of Applied Sciences, Fulda, Germany
| | - Tilman Kühn
- The Institute for Global Food Security, Queen's University Belfast, Belfast, Northern Ireland, UK
- Faculty of Medicine and University Hospital, Heidelberg Institute of Global Health (HIGH), Heidelberg, Germany
- Department of Nutritional Sciences, University of Vienna, Vienna, Austria
- Center for Public Health, Medical University of Vienna, Vienna, Austria
| | - Sandrine Louis
- Department of Physiology and Biochemistry of Nutrition, Max Rubner-Institut, Karlsruhe, Germany
| | - Stefan Lorkowski
- Institute of Nutritional Sciences, Friedrich Schiller University Jena, Jena, Germany
- Competence Cluster for Nutrition, Cardiovascular Health (nutriCARD) Halle-Jena-Leipzig, Jena, Germany
| | - Katharina Nimptsch
- Molecular Epidemiology Research Group, Max Delbrück Center for Molecular Medicine (MDC), Helmholtz Association, Berlin, Germany
| | - Matthias B Schulze
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
- Institute of Nutritional Science, University of Potsdam, Potsdam, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - Lukas Schwingshackl
- Institute for Evidence in Medicine, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Roswitha Siener
- Department of Urology, University Stone Center, University Hospital Bonn, Bonn, Germany
| | - Gabriele I Stangl
- Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Dorothee Volkert
- Institute for Biomedicine of Aging, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nuremberg, Germany
| | - Armin Zittermann
- Clinic for Thoracic and Cardiovascular Surgery, Herz- und Diabeteszentrum Nordrhein-Westfalen, Ruhr University Bochum, Bad Oeynhausen, Germany
| | - Bernhard Watzl
- Department of Physiology and Biochemistry of Nutrition, Max Rubner-Institut, Karlsruhe, Germany
| | - Sarah Egert
- Institute of Nutritional and Food Science, Nutritional Physiology, University of Bonn, Bonn, Germany
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10
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Chan PYW, Mika AP, Martin JR, Wilson JM. Glucagon-like Peptide-1 Agonists: What the Orthopaedic Surgeon Needs to Know. JBJS Rev 2024; 12:01874474-202401000-00003. [PMID: 38181103 DOI: 10.2106/jbjs.rvw.23.00167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2024]
Abstract
» Orthopaedic surgeons are increasingly likely to encounter patients with obesity and/or type 2 diabetes taking glucagon-like peptide-1 (GLP-1) agonists for weight loss.» GLP-1 agonists are an effective treatment for weight loss with semaglutide and tirzepatide being the most effective agents. Randomized controlled trials using these agents have reported weight loss up to 21 kg (46 lb).» The use of GLP-1 agonists preoperatively can improve glycemic control, which can potentially reduce the risk of postoperative complications. However, multiple cases of intraoperative aspiration/regurgitation have been reported, potentially related to the effect of GLP-1 agonists on gastric emptying.» While efficacious, GLP-1 agonists may not produce sufficient weight loss to achieve body mass index cutoffs for total joint arthroplasty depending on individual patient factors, including starting bodyweight. Multifactorial approaches to weight loss with focus on lifestyle modification in addition to GLP-1 agonists should be considered in such patients.» Although GLP-1 agonists are efficacious agents for weight loss, they may not be accessible or affordable for all patients. Each patient's unique circumstances should be considered when creating an ideal weight loss plan during optimization efforts.
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Affiliation(s)
- Peter Y W Chan
- Department of Orthopaedics, Vanderbilt University Medical Center, Nashville, Tennessee
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11
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Fareed A, Hussain A. The Expanding Role of GLP-1: From Diabetes Management to Cancer Treatment. Clin Med Insights Endocrinol Diabetes 2023; 16:11795514231213566. [PMID: 38023734 PMCID: PMC10640796 DOI: 10.1177/11795514231213566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 10/17/2023] [Indexed: 12/01/2023] Open
Affiliation(s)
- Areeba Fareed
- Karachi Medical and Dental College, Karachi, Karachi City, Sindh, Pakistan
| | - Aariz Hussain
- Karachi Medical and Dental College, Karachi, Karachi City, Sindh, Pakistan
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12
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Botticelli L, Micioni Di Bonaventura E, Del Bello F, Giorgioni G, Piergentili A, Quaglia W, Bonifazi A, Cifani C, Micioni Di Bonaventura MV. The neuromedin U system: Pharmacological implications for the treatment of obesity and binge eating behavior. Pharmacol Res 2023; 195:106875. [PMID: 37517560 DOI: 10.1016/j.phrs.2023.106875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/25/2023] [Accepted: 07/28/2023] [Indexed: 08/01/2023]
Abstract
Neuromedin U (NMU) is a bioactive peptide produced in the gut and in the brain, with a role in multiple physiological processes. NMU acts by binding and activating two G protein coupled receptors (GPCR), the NMU receptor 1 (NMU-R1), which is predominantly expressed in the periphery, and the NMU receptor 2 (NMU-R2), mainly expressed in the central nervous system (CNS). In the brain, NMU and NMU-R2 are consistently present in the hypothalamus, commonly recognized as the main "feeding center". Considering its distribution pattern, NMU revealed to be an important neuropeptide involved in the regulation of food intake, with a powerful anorexigenic ability. This has been observed through direct administration of NMU and by studies using genetically modified animals, which revealed an obesity phenotype when the NMU gene is deleted. Thus, the development of NMU analogs or NMU-R2 agonists might represent a promising pharmacological strategy to treat obese individuals. Furthermore, NMU has been demonstrated to influence the non-homeostatic aspect of food intake, playing a potential role in binge eating behavior. This review aims to discuss and summarize the current literature linking the NMU system with obesity and binge eating behavior, focusing on the influence of NMU on food intake and the neuronal mechanisms underlying its anti-obesity properties. Pharmacological strategies to improve the pharmacokinetic profile of NMU will also be reported.
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Affiliation(s)
- Luca Botticelli
- School of Pharmacy, Pharmacology Unit, University of Camerino, via Madonna delle Carceri, 9, Camerino 62032, Italy
| | | | - Fabio Del Bello
- School of Pharmacy, Medicinal Chemistry Unit, University of Camerino, via Madonna delle Carceri, Camerino 62032, Italy
| | - Gianfabio Giorgioni
- School of Pharmacy, Medicinal Chemistry Unit, University of Camerino, via Madonna delle Carceri, Camerino 62032, Italy
| | - Alessandro Piergentili
- School of Pharmacy, Medicinal Chemistry Unit, University of Camerino, via Madonna delle Carceri, Camerino 62032, Italy
| | - Wilma Quaglia
- School of Pharmacy, Medicinal Chemistry Unit, University of Camerino, via Madonna delle Carceri, Camerino 62032, Italy
| | - Alessandro Bonifazi
- Medicinal Chemistry Section, Molecular Targets and Medications Discovery Branch, National Institute on Drug Abuse, Intramural Research Program, National Institutes of Health, 333 Cassell Drive, Baltimore, MD 21224, United States
| | - Carlo Cifani
- School of Pharmacy, Pharmacology Unit, University of Camerino, via Madonna delle Carceri, 9, Camerino 62032, Italy.
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13
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Burger KS. Food reinforcement architecture: A framework for impulsive and compulsive overeating and food abuse. Obesity (Silver Spring) 2023; 31:1734-1744. [PMID: 37368515 PMCID: PMC10313138 DOI: 10.1002/oby.23792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 03/01/2023] [Accepted: 03/06/2023] [Indexed: 06/29/2023]
Abstract
Few reward-based theories address key drivers of susceptibility to food cues and consumption beyond fullness. Decision-making and habit formation are governed by reinforcement-based learning processes that, when overstimulated, can drive unregulated hedonically motivated overeating. Here, a model food reinforcement architecture is proposed that uses fundamental concepts in reinforcement and decision-making to identify maladaptive eating habits that can lead to obesity. This model is unique in that it identifies metabolic drivers of reward and incorporates neuroscience, computational decision-making, and psychology to map overeating and obesity. Food reinforcement architecture identifies two paths to overeating: a propensity for hedonic targeting of food cues contributing to impulsive overeating and lack of satiation that contributes to compulsive overeating. A combination of those paths will result in a conscious and subconscious drive to overeat independent of negative consequences, leading to food abuse and/or obesity. Use of this model to identify aberrant reinforcement learning processes and decision-making systems that can serve as markers of overeating risk may provide an opportunity for early intervention in obesity.
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Affiliation(s)
- Kyle S Burger
- Department of Nutrition, University of North Carolina, Chapel Hill, North Carolina, USA
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14
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Mehdi SF, Pusapati S, Anwar MS, Lohana D, Kumar P, Nandula SA, Nawaz FK, Tracey K, Yang H, LeRoith D, Brownstein MJ, Roth J. Glucagon-like peptide-1: a multi-faceted anti-inflammatory agent. Front Immunol 2023; 14:1148209. [PMID: 37266425 PMCID: PMC10230051 DOI: 10.3389/fimmu.2023.1148209] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 04/26/2023] [Indexed: 06/03/2023] Open
Abstract
Inflammation contributes to many chronic conditions. It is often associated with circulating pro-inflammatory cytokines and immune cells. GLP-1 levels correlate with disease severity. They are often elevated and can serve as markers of inflammation. Previous studies have shown that oxytocin, hCG, ghrelin, alpha-MSH and ACTH have receptor-mediated anti-inflammatory properties that can rescue cells from damage and death. These peptides have been studied well in the past century. In contrast, GLP-1 and its anti-inflammatory properties have been recognized only recently. GLP-1 has been proven to be a useful adjuvant therapy in type-2 diabetes mellitus, metabolic syndrome, and hyperglycemia. It also lowers HbA1C and protects cells of the cardiovascular and nervous systems by reducing inflammation and apoptosis. In this review we have explored the link between GLP-1, inflammation, and sepsis.
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Affiliation(s)
- Syed Faizan Mehdi
- The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, United States
| | - Suma Pusapati
- The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, United States
| | - Muhammad Saad Anwar
- The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, United States
| | - Durga Lohana
- The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, United States
| | - Parkash Kumar
- The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, United States
| | | | - Fatima Kausar Nawaz
- The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, United States
| | - Kevin Tracey
- The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, United States
| | - Huan Yang
- The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, United States
| | - Derek LeRoith
- Division of Endocrinology, Diabetes & Bone Disease, Icahn School of Medicine at Mt. Sinai, New York, NY, United States
| | | | - Jesse Roth
- The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, United States
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15
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Nakata M, Yamaguchi Y, Monnkawa H, Takahashi M, Zhang B, Santoso P, Yada T, Maruyama I. 1,5-Anhydro-D-Fructose Exhibits Satiety Effects via the Activation of Oxytocin Neurons in the Paraventricular Nucleus. Int J Mol Sci 2023; 24:ijms24098248. [PMID: 37175953 PMCID: PMC10179633 DOI: 10.3390/ijms24098248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/02/2023] [Accepted: 05/03/2023] [Indexed: 05/15/2023] Open
Abstract
1,5-Anhydro-D-fructose (1,5-AF) is a bioactive monosaccharide that is produced by the glycogenolysis in mammalians and is metabolized to 1,5-anhydro-D-glucitol (1,5-AG). 1,5-AG is used as a marker of glycemic control in diabetes patients. 1,5-AF has a variety of physiological activities, but its effects on energy metabolism, including feeding behavior, are unclarified. The present study examined whether 1,5-AF possesses the effect of satiety. Peroral administration of 1,5-AF, and not of 1,5-AG, suppressed daily food intake. Intracerebroventricular (ICV) administration of 1,5-AF also suppressed feeding. To investigate the neurons targeted by 1,5-AF, we investigated c-Fos expression in the hypothalamus and brain stem. ICV injection of 1,5-AF significantly increased c-Fos positive oxytocin neurons and mRNA expression of oxytocin in the paraventricular nucleus (PVN). Moreover, 1,5-AF increased cytosolic Ca2+ concentration of oxytocin neurons in the PVN. Furthermore, the satiety effect of 1,5-AF was abolished in oxytocin knockout mice. These findings reveal that 1,5-AF activates PVN oxytocin neurons to suppress feeding, indicating its potential as the energy storage monitoring messenger to the hypothalamus for integrative regulation of energy metabolism.
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Affiliation(s)
- Masanori Nakata
- Department of Physiology, School of Medicine, Wakayama Medical University, Kimiidare 811-1, Wakayama 641-8509, Japan
| | - Yuto Yamaguchi
- Department of Physiology, School of Medicine, Wakayama Medical University, Kimiidare 811-1, Wakayama 641-8509, Japan
| | - Hikaru Monnkawa
- Department of Physiology, School of Medicine, Wakayama Medical University, Kimiidare 811-1, Wakayama 641-8509, Japan
| | - Midori Takahashi
- Department of Physiology, School of Medicine, Wakayama Medical University, Kimiidare 811-1, Wakayama 641-8509, Japan
| | - Boyang Zhang
- Department of Physiology, School of Medicine, Wakayama Medical University, Kimiidare 811-1, Wakayama 641-8509, Japan
| | - Putra Santoso
- Department of Physiology, Division of Integrative Physiology, School of Medicine, Jichi Medical University, Shimotsuke 329-0498, Japan
| | - Toshihiko Yada
- Center for Integrative Physiology, Kansai Electric Power Medical Research Institute, Kyoto 604-8436, Japan
| | - Ikuro Maruyama
- Department of Systems Biology in Thromboregulation, Graduate School of Medical and Dental Science, Kagoshima University, Kagoshima 890-8520, Japan
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Concentration of Selected Adipokines and Factors Regulating Carbohydrate Metabolism in Patients with Head and Neck Cancer in Respect to Their Body Mass Index. Int J Mol Sci 2023; 24:ijms24043283. [PMID: 36834693 PMCID: PMC9959515 DOI: 10.3390/ijms24043283] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/29/2023] [Accepted: 02/04/2023] [Indexed: 02/10/2023] Open
Abstract
Head and neck cancers (HNCs) are a group of tumors not common in European populations. So far, not much is known about the role of obesity, adipokines, glucose metabolism, and inflammation in the pathogenesis of HNC. The aim of the study was to determine the concentrations of ghrelin, omentin-1, adipsin, adiponectin, leptin, resistin, visfatin, glucagon, insulin, C-peptide, glucagon-like peptide-1 (GLP-1), plasminogen activator inhibitor-1 (PAI-1), and gastric inhibitory peptide (GIP) in the blood serum of HNC patients depending on their body mass index (BMI). The study included 46 patients divided into two groups according to their BMI values: the normal BMI group (nBMI) included 23 patients with BMI < 25 kg/m2 and the increased BMI group (iBMI) included patients with BMI ≥ 25 kg/m2. A control group (CG) included 23 healthy people (BMI < 25 kg/m2). Statistically significant differences in the levels of adipsin, ghrelin, glucagon, PAI-1, and visfatin were shown between nBMI and CG. In the case of nBMI and iBMI, statistically significant differences were observed in the concentrations of adiponectin, C-peptide, ghrelin, GLP-1, insulin, leptin, omentin-1, PAI-1, resistin, and visfatin. The obtained results indicate a disruption of endocrine function of adipose tissue and impaired glucose metabolism in HNC. Obesity, which is not a typical risk factor for HNC, may aggravate the negative metabolic changes associated with this type of neoplasm. Ghrelin, visfatin, PAI-1, adipsin, and glucagon might be related to head and neck carcinogenesis. They seem to be promising directions for further research.
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Could Naringenin Participate as a Regulator of Obesity and Satiety? Molecules 2023; 28:molecules28031450. [PMID: 36771113 PMCID: PMC9921626 DOI: 10.3390/molecules28031450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/26/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023] Open
Abstract
Obesity is a serious health problem worldwide, since it is associated with multiple metabolic disorders and complications such as cardiovascular disease, type 2 diabetes, fatty liver disease and overall metabolic dysfunction. Dysregulation of the hunger-satiety pathway, which includes alterations of central and peripheral signaling, explains some forms of obesity by favoring hyperphagia and weight gain. The present work comprehensively summarizes the mechanisms by which naringenin (NAR), a predominant flavanone in citrus fruits, could modulate the main pathways associated with the development of obesity and some of its comorbidities, such as oxidative stress (OS), inflammation, insulin resistance (IR) and dyslipidemia, as well as the role of NAR in modulating the secretion of enterohormones of the satiety pathway and its possible antiobesogenic effect. The results of multiple in vitro and in vivo studies have shown that NAR has various potentially modulatory biological effects against obesity by countering IR, inflammation, OS, macrophage infiltration, dyslipidemia, hepatic steatosis, and adipose deposition. Likewise, NAR is capable of modulating peptides or peripheral hormones directly associated with the hunger-satiety pathway, such as ghrelin, cholecystokinin, insulin, adiponectin and leptin. The evidence supports the use of NAR as a promising alternative to prevent overweight and obesity.
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Abstract
PURPOSE OF REVIEW Bardet Biedl syndrome (BBS) is a rare disease characterized by obesity and hyperphagia. Despite the very high prevalence of paediatric and adult obesity in this population, the prevalence of diabetes mellitus is not well described. RECENT FINDINGS Studies in small and moderately large cohorts suggest a high prevalence of traditional risk factors for diabetes mellitus in people with BBS. People with BBS appear to have a high prevalence of insulin resistance and metabolic syndrome. Small cohort studies have identified high rates of sleep disordered breathing, including sleep apnoea syndrome. Recent research has characterized traditional behavioural risk factors such as sleep hygiene and physical inactivity in people with BBS. High rates of insufficient sleep and prolonged sedentary time suggest behavioural targets of interventions to treat or prevent diabetes mellitus. Hyperphagia, likely caused by defects in the hypothalamic melanocortin-4 receptor (MC4R) neuronal pathway, pose additional challenges to behavioural interventions to prevent diabetes mellitus. SUMMARY Understanding the prevalence of diabetes mellitus and other metabolic disorders in people with BBS and the impact of traditional risk factors on glucose regulation are important to developing effective treatments in this population.
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Affiliation(s)
- Jeremy Pomeroy
- Center of Excellence for Bardet Biedl Syndrome, Marshfield Clinic Research Institute
| | - Kelsi-Marie Offenwanger
- Center of Excellence for Bardet Biedl Syndrome, Department of Psychiatry & Behavioral Health
| | - Tammi Timmler
- Center of Excellence for Bardet Biedl Syndrome, Dietetics, Marshfield Clinic Health System, Marshfield, Wisconsin, USA
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19
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Jastreboff AM, Kushner RF. New Frontiers in Obesity Treatment: GLP-1 and Nascent Nutrient-Stimulated Hormone-Based Therapeutics. Annu Rev Med 2023; 74:125-139. [PMID: 36706749 DOI: 10.1146/annurev-med-043021-014919] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Nearly half of Americans are projected to have obesity by 2030, underscoring the pressing need for effective treatments. Glucagon-like peptide 1 receptor agonists (GLP-1 RAs) represent the first agents in a rapidly evolving, highly promising landscape of nascent hormone-based obesity therapeutics. With the understanding of the neurobiology of obesity rapidly expanding, these emerging entero-endocrine and endo-pancreatic agents combined or coformulated with GLP-1 RAs herald a new era of targeted, mechanism-based treatment of obesity. This article reviews GLP-1 RAs in the treatment of obesity and previews the imminent future of nutrient-stimulated hormone-based anti-obesity therapeutics.
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Affiliation(s)
- Ania M Jastreboff
- Departments of Medicine (Endocrinology & Metabolism) and Pediatrics (Pediatric Endocrinology), Yale University School of Medicine, New Haven, Connecticut, USA;
| | - Robert F Kushner
- Departments of Medicine (Endocrinology) and Medical Education, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA;
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20
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Ma Z, Jin K, Yue M, Chen X, Chen J. Research Progress on the GIP/GLP-1 Receptor Coagonist Tirzepatide, a Rising Star in Type 2 Diabetes. J Diabetes Res 2023; 2023:5891532. [PMID: 37096236 PMCID: PMC10122586 DOI: 10.1155/2023/5891532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/23/2023] [Accepted: 03/27/2023] [Indexed: 04/26/2023] Open
Abstract
Type 2 diabetes mellitus (T2DM) is a chronic progressive metabolic disease that has become a growing health problem worldwide, and the dangers of hyperglycemia and its chronic complications have long been considered a goal of diabetes treatment. In recent years, tirzepatide has become the first dual GIP/GLP-1R agonist approved for the treatment of diabetes mellitus in the United States as a new hypoglycemic medicine. Its hypoglycaemic and weight loss effects have been demonstrated in several large clinical trials, and there is also evidence that it has great potential for cardiovascular protection. In addition, the very concept of synthetic peptides opens up many unknown possibilities for tirzepatide. Ongoing trials (NCT04166773) and evidence suggest that it appears to be a promising drug in the areas of NAFLD, renal, and neuroprotection. Based on preclinical studies and clinical trials, the aim of this article is to discuss the latest clinical developments in tirzepatide, to focus on its differences with other incretin therapies, and to suggest future possibilities and mechanisms of tirzepatide therapy.
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Affiliation(s)
- Zijun Ma
- Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Daling Road 16, Shiyan, Hubei 442000, China
| | - Kaiqin Jin
- Department of Cardiology, The Second Hospital of Anhui Medical University, Furong Road 678, Hefei, Anhui 230601, China
| | - Mengmeng Yue
- Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Daling Road 16, Shiyan, Hubei 442000, China
| | - Xin Chen
- Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Daling Road 16, Shiyan, Hubei 442000, China
| | - Jun Chen
- Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Daling Road 16, Shiyan, Hubei 442000, China
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Sharma N, Singh S. Clinical potential of glucagon-like peptide-1 analogs in the management of diabesity. JOURNAL OF DIABETOLOGY 2023. [DOI: 10.4103/jod.jod_102_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023] Open
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22
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Avogaro A, de Kreutzenberg SV, Morieri ML, Fadini GP, Del Prato S. Glucose-lowering drugs with cardiovascular benefits as modifiers of critical elements of the human life history. Lancet Diabetes Endocrinol 2022; 10:882-889. [PMID: 36182702 DOI: 10.1016/s2213-8587(22)00247-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 08/16/2022] [Accepted: 08/16/2022] [Indexed: 11/28/2022]
Abstract
The life history theory assumes that all organisms are under selective pressure to harvest external resources and allocate them to maximise fitness: only organisms making the best use of energy obtain the greatest fitness benefits. The trade-off of energy spans four functions: maintenance, growth, reproduction, and defence against pathogens. The innovative antihyperglycaemic agents glucagon-like peptide 1 (GLP-1) receptor agonists and sodium-glucose cotransporter 2 (SGLT2) inhibitors decrease bodyweight and have the potential to counter low-grade inflammation. These key activities could rewire two components of the life history theory operative in adulthood-ie, maintenance and defence. In this Personal View, we postulate that the benefits of these medications on the cardiovascular system, beyond their glucose-lowering effects, could be mediated by the reduction of the maintenance cost driven by obesity and efforts spent on blunting low-grade inflammation.
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Affiliation(s)
- Angelo Avogaro
- Section of Diabetes and Metabolic Diseases, Department of Medicine, University of Padova, Padova, Italy.
| | | | - Mario Luca Morieri
- Section of Diabetes and Metabolic Diseases, Department of Medicine, University of Padova, Padova, Italy
| | - Gian Paolo Fadini
- Section of Diabetes and Metabolic Diseases, Department of Medicine, University of Padova, Padova, Italy
| | - Stefano Del Prato
- Section of Diabetes and Metabolic Diseases, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
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23
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Rahati S, Qorbani M, Naghavi A, Pishva H. Association and interaction of the MC4R rs17782313 polymorphism with plasma ghrelin, GLP-1, cortisol, food intake and eating behaviors in overweight/obese Iranian adults. BMC Endocr Disord 2022; 22:234. [PMID: 36123585 PMCID: PMC9487018 DOI: 10.1186/s12902-022-01129-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 08/16/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Recent studies have shown that obesity is largely influenced by heredity and created by the interactions between several genes and environmental and behavioral factors. This study aimed to examine association between variant rs17782313 near melanocortin-4 receptor (MC4R) gene and behavioral and hormonal factors then evaluated interactions between variant MC4R rs17782313 with behavioral and hormonal factors on obesity. METHODS This cross-sectional study included 403 subjects, overweight and/or obesity, aged 20-50 years from Iran. The MC4R rs17782313 data were measured by the PCR-RFLP method. Dietary intake, physical activity, stress, anxiety, depression, appetite and emotional eating were assessed by using validated questionnaires. Ghrelin, glucagon-like peptide-1 and cortisol were measured by radioimmunoassay in plasma samples. Participants were also divided into three groups based on rs17782313 genotype and BMI. RESULTS After adjustment for age, gender, energy intake and PA, significant associations were observed between food intake, appetite, emotional eating, stress and physical activity with MC4R rs17782313 (p ˂0.05). Also, significant interactions were observed between fat intake (p-interaction = 0.002), protein intake (p-interaction = 0.01), energy intake (p-interaction = 0.01), emotional eating (p-interaction = 0.02), appetite (p-interaction = 0.04), stress (p-interaction = 0.04), ghrelin (p-interaction = 0.03), cortisol (p-interaction = 0.04) and physical activity (p-interaction = 0.04) and MC4R rs17782313 in terms of BMI. CONCLUSION Interactions between the CC genotype and high intakes of fat and energy, emotional eating, high appetite, and too much stress with high levels of cortisol and ghrelin probably can have an effect on BMI in overweight/obese subjects.
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Affiliation(s)
- Sara Rahati
- Department of Cellular - Molecular Nutrition, School of Nutrition Sciences and Dietetics, Tehran University of Medical Sciences, PO Box: 14155-6447, Tehran, Iran
| | - Mostafa Qorbani
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Anoosh Naghavi
- Cellular and Molecular Research Center, Resistant Tuberculosis Institute and Department of Genetics, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Hamideh Pishva
- Department of Cellular - Molecular Nutrition, School of Nutrition Sciences and Dietetics, Tehran University of Medical Sciences, PO Box: 14155-6447, Tehran, Iran.
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Glucagon-like peptide 1 and fibroblast growth factor-21 in non-alcoholic steatohepatitis: An experimental to clinical perspective. Pharmacol Res 2022; 184:106426. [PMID: 36075510 DOI: 10.1016/j.phrs.2022.106426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/11/2022] [Accepted: 09/01/2022] [Indexed: 12/06/2022]
Abstract
Non-alcoholic steatohepatitis (NASH) is a progressive form of Non-alcoholic fatty liver disease (NAFLD), which slowly progresses toward cirrhosis and finally leads to the development of hepatocellular carcinoma. Obesity, insulin resistance, type 2 diabetes mellitus and the metabolic syndrome are major risk factors contributing to NAFLD. Targeting these risk factors is a rational option for inhibiting NASH progression. In addition, NASH could be treated with therapies that target the metabolic abnormalities causing disease pathogenesis (such as de novo lipogenesis and insulin resistance) as well with medications targeting downstream processes such as cellular damage, apoptosis, inflammation, and fibrosis. Glucagon-like peptide (GLP-1), is an incretin hormone dysregulated in both experimental and clinical NASH, which triggers many signaling pathways including fibroblast growth factor (FGF) that augments NASH pathogenesis. Growing evidence indicates that GLP-1 in concert with FGF-21 plays crucial roles in the conservation of glucose and lipid homeostasis in metabolic disorders. In line, GLP-1 stimulation improves hepatic ballooning, steatosis, and fibrosis in NASH. A recent clinical trial on NASH patients showed that the upregulation of FGF-21 decreases liver fibrosis and hepatic steatosis, thus improving the pathogenesis of NASH. Hence, therapeutic targeting of the GLP-1/FGF axis could be therapeutically beneficial for the remission of NASH. This review outlines the significance of the GLP-1/FGF-21 axis in experimental and clinical NASH and highlights the activity of modulators targeting this axis as potential salutary agents for the treatment of NASH.
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Signaling pathways in obesity: mechanisms and therapeutic interventions. Signal Transduct Target Ther 2022; 7:298. [PMID: 36031641 PMCID: PMC9420733 DOI: 10.1038/s41392-022-01149-x] [Citation(s) in RCA: 84] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/26/2022] [Accepted: 08/08/2022] [Indexed: 12/19/2022] Open
Abstract
Obesity is a complex, chronic disease and global public health challenge. Characterized by excessive fat accumulation in the body, obesity sharply increases the risk of several diseases, such as type 2 diabetes, cardiovascular disease, and nonalcoholic fatty liver disease, and is linked to lower life expectancy. Although lifestyle intervention (diet and exercise) has remarkable effects on weight management, achieving long-term success at weight loss is extremely challenging, and the prevalence of obesity continues to rise worldwide. Over the past decades, the pathophysiology of obesity has been extensively investigated, and an increasing number of signal transduction pathways have been implicated in obesity, making it possible to fight obesity in a more effective and precise way. In this review, we summarize recent advances in the pathogenesis of obesity from both experimental and clinical studies, focusing on signaling pathways and their roles in the regulation of food intake, glucose homeostasis, adipogenesis, thermogenesis, and chronic inflammation. We also discuss the current anti-obesity drugs, as well as weight loss compounds in clinical trials, that target these signals. The evolving knowledge of signaling transduction may shed light on the future direction of obesity research, as we move into a new era of precision medicine.
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Shao Y, Tian J, Yang Y, Hu Y, Zhu Y, Shu Q. Identification of key genes and pathways revealing the central regulatory mechanism of brain-derived glucagon-like peptide-1 on obesity using bioinformatics analysis. Front Neurosci 2022; 16:931161. [PMID: 35992905 PMCID: PMC9389235 DOI: 10.3389/fnins.2022.931161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 07/07/2022] [Indexed: 12/01/2022] Open
Abstract
Objective Central glucagon-like peptide-1 (GLP-1) is a target in treating obesity due to its effect on suppressing appetite, but the possible downstream key genes that GLP-1 regulated have not been studied in depth. This study intends to screen out the downstream feeding regulation genes of central GLP-1 neurons through bioinformatics analysis and verify them by chemical genetics, which may provide insights for future research. Materials and methods GSE135862 genetic expression profiles were extracted from the Gene Expression Omnibus (GEO) database. The gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes pathway (KEGG) enrichment analyses were carried out. STRING database and Cytoscape software were used to map the protein-protein interaction (PPI) network of the differentially expressed genes (DEGs). After bioinformatics analysis, we applied chemogenetic methods to modulate the activities of GLP-1 neurons in the nucleus tractus solitarius (NTS) and observed the alterations of screened differential genes and their protein expressions in the hypothalamus under different excitatory conditions of GLP-1 neurons. Results A total of 49 DEGs were discovered, including 38 downregulated genes and 11 upregulated genes. The two genes with the highest expression scores were biglycan (Bgn) and mitogen-activated protein kinase activated protein kinase 3 (Mapkapk3). The results of GO analysis showed that there were 10 molecular functions of differential genes. Differential genes were mainly localized in seven regions around the cells, and enriched in 10 biology processes. The results of the KEGG signaling pathway enrichment analysis showed that differential genes played an important role in seven pathways. The top 15 genes selected according to the Cytoscape software included Bgn and Mapkapk3. Chemogenetic activation of GLP-1 in NTS induced a decrease in food intake and body mass, while chemogenetic inhibition induced the opposite effect. The gene and protein expression of GLP-1 were upregulated in NTS when activated by chemogenetics. In addition, the expression of Bgn was upregulated and that of Mapkapk3 was downregulated in the hypothalamus. Conclusion Our data showed that GLP-1 could modulate the protein expression of Bgn and Mapkapk3. Our findings elucidated the regulatory network in GLP-1 to obesity and might provide a novel diagnostic and therapeutic target for obesity.
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Affiliation(s)
- Yuwei Shao
- Department of Rehabilitation, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jun Tian
- Department of Rehabilitation, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yanan Yang
- Department of Traditional Chinese Medicine, China Resources Wugang General Hospital, Wuhan, China
| | - Yan Hu
- Department of Rehabilitation, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Ye Zhu
- College of Health Sciences, Wuhan Sports University, Wuhan, China
| | - Qing Shu
- Department of Rehabilitation, Zhongnan Hospital of Wuhan University, Wuhan, China
- *Correspondence: Qing Shu,
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Kiernan R, Persand D, Maddie N, Cai W, Carrillo-Sepulveda MA. Obesity-related vascular dysfunction persists after weight loss and is associated with decreased vascular glucagon-like peptide (GLP-1) receptor in female rats. Am J Physiol Heart Circ Physiol 2022; 323:H301-H311. [PMID: 35749717 PMCID: PMC9291415 DOI: 10.1152/ajpheart.00031.2022] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Obesity-related cardiovascular complications are a major health problem worldwide. Overconsumption of the Western diet is a well-known culprit for the development of obesity. While short-term weight loss through switching from a Western diet to a normal diet is known to promote metabolic improvement, its short-term effects on vascular parameters are not well-characterized. Glucagon-like peptide 1 (GLP-1), an incretin with vasculo-protective properties, is decreased in plasma from obese patients. We hypothesize that obesity causes persistent vascular dysfunction in association with downregulation of vascular GLP-1R. Female Wistar rats were randomized into three groups: lean received a chow diet for 28 weeks, obese received a Western diet for 28 weeks, and reverse obese received a Western diet for 18 weeks followed by 12 weeks of standard chow diet. The obese group exhibited increased body weight and body mass index, while the reverse obese group lost weight. Weight loss failed to reverse impaired vasodilation and high systolic blood pressure in obese rats. Strikingly, our results show that obese rats exhibit decreased serum levels of GLP-1 accompanied by decreased vascular GLP-1R expression. Weight loss recovered GLP-1 serum levels, however GLP-1R expression remained downregulated. Decreased Akt phosphorylation was observed in the obese and reverse obese group, suggesting that GLP-1/Akt signaling is persistently downregulated. Our results support that GLP-1 signaling is associated with obesity-related vascular dysfunction in females and short-term weight loss does not guarantee recovery of vascular function. This study suggests that GLP-1R may be a potential target for therapeutic intervention in obesity-related hypertension in females.
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Affiliation(s)
- Risa Kiernan
- Department of Biomedical Sciences, New York Institute of Technology, Old Westbury, New York, United States
| | - Dhandevi Persand
- Department of Biomedical Sciences, New York Institute of Technology, Old Westbury, New York, United States
| | - Nicole Maddie
- Department of Biomedical Sciences, New York Institute of Technology, Old Westbury, New York, United States
| | - Weikang Cai
- Department of Biomedical Sciences, New York Institute of Technology, Old Westbury, New York, United States
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Saari T, Koffert J, Honka H, Kauhanen S, U-Din M, Wierup N, Lindqvist A, Groop L, Virtanen KA, Nuutila P. Obesity-associated Blunted Subcutaneous Adipose Tissue Blood Flow After Meal Improves After Bariatric Surgery. J Clin Endocrinol Metab 2022; 107:1930-1938. [PMID: 35363252 PMCID: PMC9202692 DOI: 10.1210/clinem/dgac191] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Indexed: 11/19/2022]
Abstract
CONTEXT Glucose-dependent insulinotropic peptide (GIP) and meal ingestion increase subcutaneous adipose tissue (SAT) perfusion in healthy individuals. The effects of GIP and a meal on visceral adipose tissue (VAT) perfusion are unclear. OBJECTIVE Our aim was to investigate the effects of meal and GIP on VAT and SAT perfusion in obese individuals with type 2 diabetes mellitus (T2DM) before and after bariatric surgery. METHODS We recruited 10 obese individuals with T2DM scheduled for bariatric surgery and 10 control individuals. Participants were studied under 2 stimulations: meal ingestion and GIP infusion. SAT and VAT perfusion was measured using 15O-H2O positron emission tomography-magnetic resonance imaging at 3 time points: baseline, 20 minutes, and 50 minutes after the start of stimulation. Obese individuals were studied before and after bariatric surgery. RESULTS Before bariatric surgery the responses of SAT perfusion to meal (P = .04) and GIP-infusion (P = .002) were blunted in the obese participants compared to controls. VAT perfusion response did not differ between obese and control individuals after a meal or GIP infusion. After bariatric surgery SAT perfusion response to a meal was similar to that of controls. SAT perfusion response to GIP administration remained lower in the operated-on than control participants. There was no change in VAT perfusion response after bariatric surgery. CONCLUSION The vasodilating effects of GIP and meal are blunted in SAT but not in VAT in obese individuals with T2DM. Bariatric surgery improves the effects of a meal on SAT perfusion, but not the effects of GIP. Postprandial increase in SAT perfusion after bariatric surgery seems to be regulated in a GIP-independent manner.
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Affiliation(s)
- Teemu Saari
- Turku PET Centre, University of Turku, 20520 Turku, Finland
- Turku PET Centre, Turku University Hospital, 20520 Turku, Finland
| | - Jukka Koffert
- Turku PET Centre, University of Turku, 20520 Turku, Finland
- Department of Gastroenterology, Turku University Hospital, 20520 Turku, Finland
| | - Henri Honka
- Turku PET Centre, University of Turku, 20520 Turku, Finland
| | - Saila Kauhanen
- Division of Digestive Surgery and Urology, Turku University Hospital, 20520 Turku, Finland
| | - Mueez U-Din
- Turku PET Centre, University of Turku, 20520 Turku, Finland
- Turku PET Centre, Turku University Hospital, 20520 Turku, Finland
| | - Nils Wierup
- Department of Clinical Sciences, Lund University Diabetes Centre, 20213 Malmö, Sweden
| | - Andreas Lindqvist
- Department of Clinical Sciences, Lund University Diabetes Centre, 20213 Malmö, Sweden
| | - Leif Groop
- Department of Clinical Sciences, Lund University Diabetes Centre, 20213 Malmö, Sweden
| | - Kirsi A Virtanen
- Correspondence: Kirsi A. Virtanen, MD, PhD, Turku PET Centre, University of Turku, Department of Endocrinology, Kiinamyllynkatu 4-8, 2052 Turku, Finland. ,
| | - Pirjo Nuutila
- Turku PET Centre, University of Turku, 20520 Turku, Finland
- Turku PET Centre, Turku University Hospital, 20520 Turku, Finland
- Department of Endocrinology, Turku University Hospital, 20520 Turku, Finland
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Shao J, Li C, Bai L, Ni X, Ge S, Zhang J, Zhao H. Recent evidence in support of traditional chinese medicine to restore normal leptin function in simple obesity. Heliyon 2022; 8:e09482. [PMID: 35620623 PMCID: PMC9127329 DOI: 10.1016/j.heliyon.2022.e09482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/23/2021] [Accepted: 05/13/2022] [Indexed: 11/27/2022] Open
Affiliation(s)
- Jialin Shao
- College of Traditional Chinese Medicine, Hebei University, Baoding, PR China
| | - Chen Li
- Institute of Information on Traditional Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, PR China
| | - Litao Bai
- The Second Affiliated Hospital of Chongqing Medical University, Chongqing, PR China
| | - Xiaolin Ni
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Beijing, PR China
- Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, PR China
- Graduate School of Chinese Academy of Medical Science and Peking Union Medical College, Beijing, PR China
| | - Shaoqin Ge
- College of Traditional Chinese Medicine, Hebei University, Baoding, PR China
| | - Jinghui Zhang
- College of Traditional Chinese Medicine, Hebei University, Baoding, PR China
| | - Hanqing Zhao
- College of Traditional Chinese Medicine, Hebei University, Baoding, PR China
- Corresponding author.
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Mottl AK, Alicic R, Argyropoulos C, Brosius FC, Mauer M, Molitch M, Nelson RG, Perreault L, Nicholas SB. KDOQI US Commentary on the KDIGO 2020 Clinical Practice Guideline for Diabetes Management in CKD. Am J Kidney Dis 2022; 79:457-479. [PMID: 35144840 PMCID: PMC9740752 DOI: 10.1053/j.ajkd.2021.09.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 09/15/2021] [Indexed: 12/14/2022]
Abstract
In October 2020, KDIGO (Kidney Disease: Improving Global Outcomes) published its first clinical practice guideline directed specifically to the care of patients with diabetes and chronic kidney disease (CKD). This commentary presents the views of the KDOQI (Kidney Disease Outcomes Quality Initiative) work group for diabetes in CKD, convened by the National Kidney Foundation to provide an independent expert perspective on the new guideline. The KDOQI work group believes that the KDIGO guideline takes a major step forward in clarifying glycemic targets and use of specific antihyperglycemic agents in diabetes and CKD. The purpose of this commentary is to carry forward the conversation regarding optimization of care for patients with diabetes and CKD. Recent developments for prevention of CKD progression and cardiovascular events in people with diabetes and CKD, particularly related to sodium/glucose cotransporter 2 (SGLT2) inhibitors, have filled a longstanding gap in nephrology's approach to the care of persons with diabetes and CKD. The multifaceted benefits of SGLT2 inhibitors have facilitated interactions between nephrology, cardiology, endocrinology, and primary care, underscoring the need for innovative approaches to multidisciplinary care in these patients. We now have more interventions to slow kidney disease progression and prevent or delay kidney failure in patients with diabetes and kidney disease, but methods to streamline their implementation and overcome barriers in access to care, particularly cost, are essential to ensuring all patients may benefit.
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Winquist RJ, Gribkoff VK. Cardiovascular effects of GLP-1 receptor agonism. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 2022; 94:213-254. [PMID: 35659373 DOI: 10.1016/bs.apha.2022.02.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Glucagon-like peptide-1 (GLP-1) receptor agonists are extensively used in type 2 diabetic patients for the effective control of hyperglycemia. It is now clear from outcomes trials that this class of drugs offers important additional benefits to these patients due to reducing the risk of developing major adverse cardiac events (MACE). This risk reduction is, in part, due to effective glycemic control in patients; however, the various outcomes trials, further validated by subsequent meta-analysis of the outcomes trials, suggest that the risk reduction in MACE is also dependent on glycemic-independent mechanisms operant in cardiovascular tissues. These glycemic-independent mechanisms are likely mediated by GLP-1 receptors found throughout the cardiovascular system and by the complex signaling cascades triggered by the binding of agonists to the G-protein coupled receptors. This heterogeneity of signaling pathways underlying different downstream effects of GLP-1 agonists, and the discovery of biased agonists favoring specific signaling pathways, may have import in the future treatment of MACE in these patients. We review the evidence supporting the glycemic-independent evidence for risk reduction of MACE by the GLP-1 receptor agonists and highlight the putative mechanisms underlying these benefits. We also comment on the different signaling pathways which appear important for mediating these effects.
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Affiliation(s)
| | - Valentin K Gribkoff
- Section on Endocrinology, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, United States; TheraStat LLC, Weston, MA, United States
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Jurkowska K, Szymańska B, Knysz B, Piwowar A. Effect of Combined Antiretroviral Therapy on the Levels of Selected Parameters Reflecting Metabolic and Inflammatory Disturbances in HIV-Infected Patients. J Clin Med 2022; 11:jcm11061713. [PMID: 35330038 PMCID: PMC8954290 DOI: 10.3390/jcm11061713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/15/2022] [Accepted: 03/17/2022] [Indexed: 01/25/2023] Open
Abstract
Subjects infected with human immunodeficiency virus (HIV) treated with combined antiretroviral therapy (cART) show a greater predisposition to metabolic disturbances compared to the general population. The aim of the study was to assess the effect of cART on the level of selected parameters related to carbohydrate and lipid metabolism, cardiovascular diseases and inflammation in the plasma of HIV-infected patients against the uninfected. The levels of irisin (IRS), myostatin (MSTN), peptide YY (PYY), glucagon-like peptide-1 (GLP-1), dipeptidyl peptidase IV (DPP-4), fetuin A (FETU-A), pentraxin 3 (PTX 3), chemokine stromal cell-derived factor 1 (SDF-1), and regulated on activation normal T cell expressed and secreted (RANTES) in the plasma of HIV-infected patients and the control group were measured by immunoassay methods. HIV-infected patients were analyzed in terms of CD4+ T cells and CD8+ T cell count, HIV RNA viral load, and the type of therapeutic regimen containing either protease inhibitors (PIs) or integrase transfer inhibitors (INSTIs). The analysis of HIV-infected patients before and after cART against the control group showed statistically significant differences for the following parameters: IRS (p = 0.02), MSTN (p = 0.03), PYY (p = 0.03), GLP-1 (p = 0.03), PTX3 (p = 0.03), and RANTES (p = 0.02), but no significant differences were found for DPP-4, FETU-A, and SDF-1. Comparing the two applied therapeutic regimens, higher levels of all tested parameters were shown in HIV-infected patients treated with INSTIs compared to HIV-infected patients treated with PIs, but the differences were not statistically significant. The obtained results indicated significant changes in the expression of selected parameters in the course of HIV infection and cART. There is need for further research on the clinical usefulness of the selected parameters and for new information on the pathogenesis of HIV-related comorbidities to be provided. The obtained data may allow for better monitoring of the course of HIV infection and optimization of therapy in order to prevent the development of comorbidities as a result of long-term use of cART.
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Affiliation(s)
- Karolina Jurkowska
- Department of Toxicology, Faculty of Pharmacy, Wroclaw Medical University, 50-556 Wroclaw, Poland; (K.J.); (A.P.)
| | - Beata Szymańska
- Department of Toxicology, Faculty of Pharmacy, Wroclaw Medical University, 50-556 Wroclaw, Poland; (K.J.); (A.P.)
- Correspondence: ; Tel.: +48-71-784-0457
| | - Brygida Knysz
- Department of Infectious Diseases, Liver Diseases and Acquired Immune Deficiencies, Faculty of Medicine, Wroclaw Medical University, 50-368 Wroclaw, Poland;
| | - Agnieszka Piwowar
- Department of Toxicology, Faculty of Pharmacy, Wroclaw Medical University, 50-556 Wroclaw, Poland; (K.J.); (A.P.)
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Masaki T, Ozeki Y, Yoshida Y, Okamoto M, Miyamoto S, Gotoh K, Shibata H. Glucagon-Like Peptide-1 Receptor Agonist Semaglutide Improves Eating Behavior and Glycemic Control in Japanese Obese Type 2 Diabetic Patients. Metabolites 2022; 12:147. [PMID: 35208221 PMCID: PMC8878247 DOI: 10.3390/metabo12020147] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 01/31/2022] [Accepted: 02/02/2022] [Indexed: 02/04/2023] Open
Abstract
We evaluated time-course changes and the relationship between eating behavior and glycemic profile during the treatment of 34 obese type 2 diabetic patients with the glucagon-like peptide-1 receptor agonist (GLP1-RA) semaglutide. Changes in dietary habits were evaluated using the Japan Society for the Study of Obesity questionnaire. Semaglutide improved body weight and hemoglobin A1C (HbA1c) 3 and 6 months after treatment. In addition, semaglutide led to marked improvements in the total scores for eating behavior items on the questionnaire. In particular, changes in the scores regarding the sensation of hunger, food preference, eating style, regularity of eating habits and emotional eating behavior were significantly improved during semaglutide treatment. By contrast, there were no significant changes in the scores for the recognition of weight and constitution and external eating behavior. Furthermore, changes in the scores regarding the sensation of hunger and food preference were correlated with changes in HbA1c after semaglutide treatment. Multivariable regression analyses showed that the change in the sensation of hunger was related to HbA1c during treatment. In conclusion, the GLP1-RA semaglutide regulates eating behavior, and, in particular, the sensation of hunger is closely related to the improvement in HbA1c by semaglutide in obese patients with type 2 diabetes.
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Affiliation(s)
- Takayuki Masaki
- Department of Endocrinology, Metabolism, Rheumatology and Nephrology, Faculty of Medicine, Oita University, Yufu City 879-5593, Japan; (Y.O.); (Y.Y.); (M.O.); (S.M.); (K.G.); (H.S.)
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Rodrigues VST, Moura EG, Peixoto TC, Soares P, Lopes BP, Bertasso IM, Silva BS, Cabral S, Kluck GEG, Atella GC, Trindade PL, Daleprane JB, Oliveira E, Lisboa PC. The model of litter size reduction induces long-term disruption of the gut-brain axis: An explanation for the hyperphagia of Wistar rats of both sexes. Physiol Rep 2022; 10:e15191. [PMID: 35146951 PMCID: PMC8831958 DOI: 10.14814/phy2.15191] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 12/10/2021] [Accepted: 01/04/2022] [Indexed: 04/26/2023] Open
Abstract
The gut microbiota affects the host's metabolic phenotype, impacting health and disease. The gut-brain axis unites the intestine with the centers of hunger and satiety, affecting the eating behavior. Deregulation of this axis can lead to obesity onset. Litter size reduction is a well-studied model for infant obesity because it causes overnutrition and programs for obesity. We hypothesize that animals raised in small litters (SL) have altered circuitry between the intestine and brain, causing hyperphagia. We investigated vagus nerve activity, the expression of c-Fos, brain-derived neurotrophic factor (BDNF), gastrointestinal (GI) hormone receptors, and content of bacterial phyla and short-chain fatty acids (SCFAs) in the feces of adult male and female Wistar rats overfed during lactation. On the 3rd day after birth, litter size was reduced to 3 pups/litter (SL males or SL females) until weaning. Controls had normal litter size (10 pups/litter: 5 males and 5 females). The rats were killed at 5 months of age. The male and female offspring were analyzed separately. The SL group of both sexes showed higher food consumption and body adiposity than the respective controls. SL animals presented dysbiosis (increased Firmicutes, decreased Bacteroidetes) and had increased vagus nerve activity. Only the SL males had decreased hypothalamic GLP-1 receptor expression, while only the SL females had lower acetate and propionate in the feces and higher CCK receptor expression in the hypothalamus. Thus, overfeeding during lactation differentially changes the gut-brain axis, contributing to hyperphagia of the offspring of both sexes.
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Affiliation(s)
- Vanessa S. T. Rodrigues
- Laboratory of Endocrine PhysiologyBiology InstituteState University of Rio de JaneiroRio de JaneiroBrazil
| | - Egberto G. Moura
- Laboratory of Endocrine PhysiologyBiology InstituteState University of Rio de JaneiroRio de JaneiroBrazil
| | - Thamara C. Peixoto
- Laboratory of Endocrine PhysiologyBiology InstituteState University of Rio de JaneiroRio de JaneiroBrazil
| | - Patricia N. Soares
- Laboratory of Endocrine PhysiologyBiology InstituteState University of Rio de JaneiroRio de JaneiroBrazil
| | - Bruna P. Lopes
- Laboratory of Endocrine PhysiologyBiology InstituteState University of Rio de JaneiroRio de JaneiroBrazil
| | - Iala M. Bertasso
- Laboratory of Endocrine PhysiologyBiology InstituteState University of Rio de JaneiroRio de JaneiroBrazil
| | - Beatriz S. Silva
- Laboratory of Endocrine PhysiologyBiology InstituteState University of Rio de JaneiroRio de JaneiroBrazil
| | - S. S. Cabral
- Laboratory of Lipids and Lipoprotein BiochemistryBiochemistry InstituteFederal University of Rio de JaneiroRio de JaneiroBrazil
| | - G. E. G. Kluck
- Laboratory of Lipids and Lipoprotein BiochemistryBiochemistry InstituteFederal University of Rio de JaneiroRio de JaneiroBrazil
| | - G. C. Atella
- Laboratory of Lipids and Lipoprotein BiochemistryBiochemistry InstituteFederal University of Rio de JaneiroRio de JaneiroBrazil
| | - P. L. Trindade
- Laboratory for studies of Interactions between Nutrition and GeneticsNutrition InstituteRio de Janeiro State UniversityRio de JaneiroBrazil
| | - J. B. Daleprane
- Laboratory for studies of Interactions between Nutrition and GeneticsNutrition InstituteRio de Janeiro State UniversityRio de JaneiroBrazil
| | - Elaine Oliveira
- Laboratory of Endocrine PhysiologyBiology InstituteState University of Rio de JaneiroRio de JaneiroBrazil
| | - Patricia Cristina Lisboa
- Laboratory of Endocrine PhysiologyBiology InstituteState University of Rio de JaneiroRio de JaneiroBrazil
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GLP-1a: Going beyond Traditional Use. Int J Mol Sci 2022; 23:ijms23020739. [PMID: 35054924 PMCID: PMC8775408 DOI: 10.3390/ijms23020739] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 12/28/2021] [Accepted: 12/30/2021] [Indexed: 02/07/2023] Open
Abstract
Glucagon-like peptide-1 (GLP-1) is a human incretin hormone derived from the proglucagon molecule. GLP-1 receptor agonists are frequently used to treat type 2 diabetes mellitus and obesity. However, the hormone affects the liver, pancreas, brain, fat cells, heart, and gastrointestinal tract. The objective of this study was to perform a systematic review on the use of GLP-1 other than in treating diabetes. PubMed, Cochrane, and Embase were searched, and the PRISMA guidelines were followed. Nineteen clinical studies were selected. The results showed that GLP-1 agonists can benefit defined off-medication motor scores in Parkinson’s Disease and improve emotional well-being. In Alzheimer’s disease, GLP-1 analogs can improve the brain’s glucose metabolism by improving glucose transport across the blood–brain barrier. In depression, the analogs can improve quality of life and depression scales. GLP-1 analogs can also have a role in treating chemical dependency, inhibiting dopaminergic release in the brain’s reward centers, decreasing withdrawal effects and relapses. These medications can also improve lipotoxicity by reducing visceral adiposity and decreasing liver fat deposition, reducing insulin resistance and the development of non-alcoholic fatty liver diseases. The adverse effects are primarily gastrointestinal. Therefore, GLP-1 analogs can benefit other conditions besides traditional diabetes and obesity uses.
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Zhou Y, Chen M, Liu L, Chen Z. Difference in Gastrointestinal Risk Associated with Use of GLP-1 Receptor Agonists: A Real-World Pharmacovigilance Study. Diabetes Metab Syndr Obes 2022; 15:155-163. [PMID: 35046686 PMCID: PMC8763271 DOI: 10.2147/dmso.s348025] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 12/22/2021] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Glucagon-like peptide-1 (GLP-1) receptor agonists (GLP-1RAs) are promising weight-loss drugs, but real-world data concerning the liability of GLP-1RAs in gastrointestinal safety are lacking. We examined the differences in gastrointestinal safety between semaglutide and liraglutide. MATERIALS AND METHODS We used the US Food and Drug Administration (FDA) Adverse Event Reporting System (FAERS) database and retrieved data during the first three years of semaglutide and liraglutide approved by the FDA. Thirteen main gastrointestinal adverse drug reactions (GADRs) were evaluated. Patient demographics, treatment information, and outcome of events were summarized. Disproportionality analyses were conducted by estimating the reporting odds ratios (RORs) and 95% confidence intervals (CIs). RESULTS In the reported cases of semaglutide (n = 2047) and liraglutide (n = 4175), semaglutide had a higher pooled ROR and later pooled time-to-onset median of GADRs compared with those of liraglutide (5.53, 95% CI 5.23-5.85 vs 3.95, 95% CI 3.81-4.10; 7 days, Q1-Q3: 0-48 vs 4 days, Q1-Q3: 0-34.5). The thirteen GADRs associated with these two GLP-1RAs showed a significant difference in the profile of reporting risk and time-to-onset. CONCLUSION GLP-1RAs produce a spectrum of distinct classes of GADRs. The individual properties of GADRs between semaglutide and liraglutide might enable incretin-based treatment of obesity to be "tailored" to the needs of each patient.
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Affiliation(s)
- Yu Zhou
- Department of Clinical Pharmacy and Pharmacy Administration, School of Pharmacy, Fujian Medical University, Fuzhou, People’s Republic of China
| | - Mingyu Chen
- Department of Clinical Pharmacy and Pharmacy Administration, School of Pharmacy, Fujian Medical University, Fuzhou, People’s Republic of China
| | - Libin Liu
- Department of Endocrinology, Fujian Medical University Union Hospital, Fuzhou, People’s Republic of China
| | - Zhou Chen
- Department of Clinical Pharmacy and Pharmacy Administration, School of Pharmacy, Fujian Medical University, Fuzhou, People’s Republic of China
- Correspondence: Zhou Chen; Libin Liu Tel +86-591-22862587; +86-591-86218562 Email ;
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Abstract
Asthma is chronic eosinophilic bronchitis with the dominancy of T helper 2 (Th2) inflammation. However, patients with asthma and metabolic dysfunction have pathogenic and pathological differences from those with Th2 inflammation. Metabolic dysfunction, typically presented as metabolic syndrome, has several important clinical components including central obesity, insulin resistance or glucose intolerance, dyslipidemia, and vitamin D deficiency. Data from large epidemiological studies support the significance of these components in the control of asthma and their contribution to airway remodeling, suggesting the presence of an asthma phenotype with metabolic dysfunction. These components are quite interactive with each other, so it is difficult to reveal the individual role of each. It is well known that asthma is difficult to treat in patients with obesity, due in part to inadequate response to inhaled corticosteroids. Additionally, vitamin D deficiency and insulin resistance have been regarded as aggravating factors of asthma control and airway remodeling. Recent clinical and in vivo studies have revealed the specific mechanisms of these components, which may aggravate asthma control and airway remodeling. In this review article, I summarize the recent studies and unmet needs for patients with asthma and metabolic dysfunction.
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Affiliation(s)
- Jung-Won Park
- Institute for Allergy & Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
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Rizvi AA, Rizzo M. The Emerging Role of Dual GLP-1 and GIP Receptor Agonists in Glycemic Management and Cardiovascular Risk Reduction. Diabetes Metab Syndr Obes 2022; 15:1023-1030. [PMID: 35411165 PMCID: PMC8994606 DOI: 10.2147/dmso.s351982] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 03/18/2022] [Indexed: 12/11/2022] Open
Abstract
The incretin pathway is a self-regulating feedback system connecting the gut with the brain, pancreas, and liver. Its predominant action is on the postprandial glucose levels, with extraglycemic effects on fat metabolism and endovascular function. Of the two main incretin hormones released with food ingestion, the actions of glucagon-like peptide-1 (GLP-1) have been exploited for therapeutic benefit. However, little attention has been paid to glucose-dependent insulinotropic polypeptide (GIP) until the recent experimental introduction of dual agonists, or "twincretins". Interestingly, simultaneous activation of both receptors is not only replicative of normal physiology, it seems to be an innovative way to enhance their mutual salubrious actions. In patients with type 2 diabetes, dual agonists can have powerful benefits for glucose control and weight reduction. Additionally, there is mounting evidence of their favorable cardiovascular impact, making them potentially appealing pharmacologic agents of choice in the future. Although we seem to be poised on the horizons of exciting new breakthroughs, much knowledge has yet to be gained before these novel agents are ready for prime time.
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Affiliation(s)
- Ali A Rizvi
- Department of Medicine, University of Central Florida College of Medicine, Orlando, Florida, USA
- Correspondence: Ali A Rizvi, Department of Medicine, University of Central Florida College of Medicine, 3400 Quadrangle Blvd, Orlando, Florida, 32817, USA, Tel +1 803-609-1935, Fax +1 407-882-4799, Email
| | - Manfredi Rizzo
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (Promise), University of Palermo, Palermo, Italy
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Lim J, Ferruzzi MG, Hamaker BR. Dietary starch is weight reducing when distally digested in the small intestine. Carbohydr Polym 2021; 273:118599. [PMID: 34560999 DOI: 10.1016/j.carbpol.2021.118599] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 08/09/2021] [Accepted: 08/19/2021] [Indexed: 12/25/2022]
Abstract
Nowadays, carbohydrate-based foods have a negative consumer connotation and low carb diets have become a popular way to lose weight. Here, we show how digestible starch and flavonoids can be used as a dietary approach to manage food intake and weight gain through elevation of glucagon-like peptide-1 (GLP-1) secretion for gut-brain axis communication. This was achieved by extending the digestion of cooked starch to the distal small intestine using luteolin or quercetin as α-amylase-specific inhibitors with competitive inhibition mechanism. In a mouse model, extended and complete digestion produced a signature blunted glycemic profile that induced elevation of GLP-1 and positive regulation of hypothalamic neuropeptides with significantly reduced food intake and weight gain (p < 0.05). These findings represent a shift in paradigm of dietary carbohydrates from weight increasing to reducing, and have implications for industry and public health related to the design of carbohydrate-based foods/ingredients for managing obesity and diabetes.
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Affiliation(s)
- Jongbin Lim
- Whistler Center for Carbohydrate Research and Department of Food Science, Purdue University, West Lafayette, IN 47907, USA
| | - Mario G Ferruzzi
- Plants for Human Health Institute, North Carolina State University, Kannapolis, NC 28081, USA; Department of Food, Bioprocessing and Nutrition Sciences, North Carolina State University, Raleigh, NC 27606, USA
| | - Bruce R Hamaker
- Whistler Center for Carbohydrate Research and Department of Food Science, Purdue University, West Lafayette, IN 47907, USA.
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40
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Gallop MR, Wilson VC, Ferrante AW. Post-oral sensing of fat increases food intake and attenuates body weight defense. Cell Rep 2021; 37:109845. [PMID: 34686319 PMCID: PMC8609494 DOI: 10.1016/j.celrep.2021.109845] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 07/21/2021] [Accepted: 09/27/2021] [Indexed: 12/25/2022] Open
Abstract
In mammals, changes in weight elicit responses that favor a return to one's previous weight and promote weight stability. It has been hypothesized that palatable sweet and high-fat foods disturb the defense of body weight, leading to weight gain. We find that increasing sweetness or percent calories from fat increases diet palatability but that only increases in nutritive fat content increase caloric intake and body weight. In a mouse model of overfeeding that activates weight defense, high-fat diets, but not sweetened diets, attenuate the defense of body weight, leading to weight gain. The ability of a palatable, high-fat diet to increase food intake does not require tasting or smelling the food. Instead, the direct infusion of a high-fat diet into the stomach increases the ad libitum intake of less palatable, low-fat food. Post-oral sensing of percent calories from fat modulates feeding behavior to alter weight stability.
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Affiliation(s)
- Molly R Gallop
- Department of Medicine, Institute of Human Nutrition, Naomi Berrie Diabetes Center, Columbia University, New York, NY 10032, USA
| | - Victoria C Wilson
- Department of Medicine, Institute of Human Nutrition, Naomi Berrie Diabetes Center, Columbia University, New York, NY 10032, USA
| | - Anthony W Ferrante
- Department of Medicine, Institute of Human Nutrition, Naomi Berrie Diabetes Center, Columbia University, New York, NY 10032, USA.
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41
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Klausen MK, Thomsen M, Wortwein G, Fink-Jensen A. The role of glucagon-like peptide 1 (GLP-1) in addictive disorders. Br J Pharmacol 2021; 179:625-641. [PMID: 34532853 DOI: 10.1111/bph.15677] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 05/21/2021] [Accepted: 06/19/2021] [Indexed: 11/29/2022] Open
Abstract
Drug-, alcohol- and tobacco use disorders are a global burden affecting millions of people. Despite decades of research, treatment options are sparse or missing, and relapse rates are high. Glucagon-like peptide-1 (GLP-1) is released in the small intestines, promotes blood glucose homeostasis, slows gastric emptying, and reduces appetite. GLP-1 receptor agonists approved for treating type 2 diabetes mellitus and obesity, have received attention as a potential anti-addiction treatment. Studies in rodents and non-human primates have demonstrated a reduction in intake of alcohol and drugs of abuse, and clinical trials have been initiated to investigate whether the preclinical findings can be translated to patients. This review will give an overview of current findings and discuss the possible mechanisms of action. We suggest that effects of GLP-1 in alcohol- and substance use disorder is mediated centrally, at least partly through dopamine signalling, but precise mechanisms are still to be uncovered.
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Affiliation(s)
- Mette Kruse Klausen
- Psychiatric Centre Copenhagen and University Hospital of Copenhagen, Copenhagen, Denmark
| | - Morgane Thomsen
- Laboratory of Neuropsychiatry, Psychiatric Centre Copenhagen and University Hospital of Copenhagen, Copenhagen, Denmark
| | - Gitta Wortwein
- Laboratory of Neuropsychiatry, Psychiatric Centre Copenhagen and University Hospital of Copenhagen, Copenhagen, Denmark
| | - Anders Fink-Jensen
- Laboratory of Neuropsychiatry, Psychiatric Centre Copenhagen and University Hospital of Copenhagen, Copenhagen, Denmark
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42
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Borner T, Tinsley IC, Doyle RP, Hayes MR, De Jonghe BC. GLP-1 in diabetes care: Can glycemic control be achieved without nausea and vomiting? Br J Pharmacol 2021; 179:542-556. [PMID: 34363224 PMCID: PMC8810668 DOI: 10.1111/bph.15647] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 07/21/2021] [Accepted: 07/24/2021] [Indexed: 11/28/2022] Open
Abstract
Introduced less than two decades ago, glucagon-like peptide-1 receptor agonists (GLP-1RAs) rapidly re-shaped the field of type 2 diabetes (T2DM) care by providing glycemic control in tandem with weight loss. However, FDA-approved GLP-1RAs are often accompanied by nausea and emesis, and in some lean T2DM patients, by undesired anorexia. Importantly, the hypophagic and emetic effects of GLP-1RAs are caused by central GLP-1R activation. This review summarizes two different approaches to mitigate the incidence/severity of nausea and emesis related to GLP-1RAs: conjugation with vitamin B12, or related corrin-ring containing compounds ("corrination"), and development of dual-agonists of the GLP-1R with glucose dependent-insulinotropic polypeptide (GIP). Such approaches could lead to the generation of GLP-1RAs with improved therapeutic efficacy thus, decreasing treatment attrition, increasing patient compliance, and extending treatment to a broader population of T2DM patients. The data reviewed show that it is possible to pharmacologically separate emetic effects of GLP-1RAs from glucoregulatory action.
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Affiliation(s)
- Tito Borner
- Department of Biobehavioral Health Sciences, University of Pennsylvania, School of Nursing, Philadelphia, Pennsylvania, United States.,Department of Psychiatry, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, United States
| | - Ian C Tinsley
- Department of Chemistry, Syracuse University, Syracuse, New York, United States
| | - Robert P Doyle
- Department of Chemistry, Syracuse University, Syracuse, New York, United States.,Departments of Medicine and Pharmacology, State University of New York, Upstate Medical University, Syracuse, New York, United States
| | - Matthew R Hayes
- Department of Biobehavioral Health Sciences, University of Pennsylvania, School of Nursing, Philadelphia, Pennsylvania, United States.,Department of Psychiatry, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, United States
| | - Bart C De Jonghe
- Department of Biobehavioral Health Sciences, University of Pennsylvania, School of Nursing, Philadelphia, Pennsylvania, United States.,Department of Psychiatry, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, United States
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43
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Brierley DI, de Lartigue G. Reappraising the role of the vagus nerve in GLP-1-mediated regulation of eating. Br J Pharmacol 2021; 179:584-599. [PMID: 34185884 PMCID: PMC8714868 DOI: 10.1111/bph.15603] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 06/03/2021] [Accepted: 06/16/2021] [Indexed: 12/19/2022] Open
Abstract
Here, we provide a focused review of the evidence for the roles of the vagus nerve in mediating the regulatory effects of peripherally and centrally produced GLP-1 on eating behaviour and energy balance. We particularly focus on recent studies which have used selective genetic, viral, and transcriptomic approaches to provide important insights into the anatomical and functional organisation of GLP-1-mediated gut-brain signalling pathways. A number of these studies have challenged canonical ideas of how GLP-1 acts in the periphery and the brain to regulate eating behaviour, with important implications for the development of pharmacological treatments for obesity.
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Affiliation(s)
- Daniel I Brierley
- Centre for Cardiovascular and Metabolic Neuroscience, Department of Neuroscience, Physiology and Pharmacology, University College London, London, UK
| | - Guillaume de Lartigue
- Center for Integrative Cardiovascular and Metabolic Disease, University of Florida, Gainesville, Florida, USA
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44
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Martin-Moreno PL, Shin HS, Chandraker A. Obesity and Post-Transplant Diabetes Mellitus in Kidney Transplantation. J Clin Med 2021; 10:2497. [PMID: 34198724 PMCID: PMC8201168 DOI: 10.3390/jcm10112497] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/30/2021] [Accepted: 06/01/2021] [Indexed: 12/14/2022] Open
Abstract
Worldwide, the prevalence obesity, diabetes, and chronic kidney disease is increasing apace. The relationship between obesity and chronic kidney disease is multidimensional, especially when diabetes is also considered. The optimal treatment of patients with chronic kidney disease includes the need to consider weight loss as part of the treatment. The exact relationship between obesity and kidney function before and after transplantation is not as clear as previously imagined. Historically, patients with obesity had worse outcomes following kidney transplantation and weight loss before surgery was encouraged. However, recent studies have found less of a correlation between obesity and transplant outcomes. Transplantation itself is also a risk factor for developing diabetes, a condition known as post-transplant diabetes mellitus, and is related to the use of immunosuppressive medications and weight gain following transplantation. Newer classes of anti-diabetic medications, namely SGLT-2 inhibitors and GLP-1 agonists, are increasingly being recognized, not only for their ability to control diabetes, but also for their cardio and renoprotective effects. This article reviews the current state of knowledge on the management of obesity and post-transplant diabetes mellitus for kidney transplant patients.
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Affiliation(s)
- Paloma Leticia Martin-Moreno
- Department of Nephrology, Clinica Universidad de Navarra, Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain
| | - Ho-Sik Shin
- Renal Division, Department of Internal Medicine, Gospel Hospital, Kosin University, Busan 49267, Korea;
- Transplantation Research Institute, Kosin University College of Medicine, Busan 49367, Korea
| | - Anil Chandraker
- Renal Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA;
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45
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Holt MK, Rinaman L. The role of nucleus of the solitary tract glucagon-like peptide-1 and prolactin-releasing peptide neurons in stress: anatomy, physiology and cellular interactions. Br J Pharmacol 2021; 179:642-658. [PMID: 34050926 PMCID: PMC8820208 DOI: 10.1111/bph.15576] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 05/04/2021] [Accepted: 05/17/2021] [Indexed: 02/06/2023] Open
Abstract
Neuroendocrine, behavioural and autonomic responses to stressful stimuli are orchestrated by complex neural circuits. The caudal nucleus of the solitary tract (cNTS) in the dorsomedial hindbrain is uniquely positioned to integrate signals of both interoceptive and psychogenic stress. Within the cNTS, glucagon‐like peptide‐1 (GLP‐1) and prolactin‐releasing peptide (PrRP) neurons play crucial roles in organising neural responses to a broad range of stressors. In this review we discuss the anatomical and functional overlap between PrRP and GLP‐1 neurons. We outline their co‐activation in response to stressful stimuli and their importance as mediators of behavioural and physiological stress responses. Finally, we review evidence that PrRP neurons are downstream of GLP‐1 neurons and outline unexplored areas of the research field. Based on the current state‐of‐knowledge, PrRP and GLP‐1 neurons may be compelling targets in the treatment of stress‐related disorders.
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Affiliation(s)
- Marie K Holt
- Department of Neuroscience, Physiology and Pharmacology, University College London, London, UK
| | - Linda Rinaman
- Department of Psychology and Program in Neuroscience, Florida State University, Tallahassee, Florida, USA
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46
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Williams DL. The diverse effects of brain glucagon-like peptide 1 receptors on ingestive behaviour. Br J Pharmacol 2021; 179:571-583. [PMID: 33990944 DOI: 10.1111/bph.15535] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 04/12/2021] [Accepted: 05/07/2021] [Indexed: 12/31/2022] Open
Abstract
Glucagon-like peptide 1 (GLP-1) is well known as a gut hormone and also acts as a neuropeptide, produced in a discrete population of caudal brainstem neurons that project widely throughout the brain. GLP-1 receptors are expressed in many brain areas of relevance to energy balance, and stimulation of these receptors at many of these sites potently suppresses food intake. This review surveys the current evidence for effects mediated by GLP-1 receptors on feeding behaviour at a wide array of brain sites and discusses behavioural and neurophysiological mechanisms for the effects identified thus far. Taken together, it is clear that GLP-1 receptor activity in the brain can influence feeding by diverse means, including mediation of gastrointestinal satiation and/or satiety signalling, suppression of motivation for food reward, induction of nausea and mediation of restraint stress-induced hypophagia, but many questions about the organization of this system remain.
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Affiliation(s)
- Diana L Williams
- Department of Psychology, Program in Neuroscience, Florida State University, Tallahassee, Florida, USA
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47
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Xu W, Dahlke SP, Emery AC, Sung M, Chepurny OG, Holz GG, Eiden LE. Cyclic AMP-dependent activation of ERK via GLP-1 receptor signalling requires the neuroendocrine cell-specific guanine nucleotide exchanger NCS-RapGEF2. J Neuroendocrinol 2021; 33:e12974. [PMID: 33960038 PMCID: PMC8571116 DOI: 10.1111/jne.12974] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 03/15/2021] [Accepted: 03/24/2021] [Indexed: 01/27/2023]
Abstract
Cyclic AMP activation of the Rap-Braf-MEK-ERK pathway after signalling initiated by the neuropeptide pituitary adenylate cyclase-activating peptide (PACAP), via the Gs -protein coupled receptor (Gs PCR) PAC1, occurs uniquely through the neuritogenic cAMP sensor Rap guanine nucleotide exchange factor 2 (NCS-RapGEF2) in Neuroscreen-1 (NS-1) neuroendocrine cells. We examined the expression of other Family B Gs PCRs in this cell line and assessed cAMP elevation and neuritogenesis after treatment with their cognate peptide ligands. Exposure of NS-1 cells to the VIPR1/2 agonist vasoactive intestinal polypeptide, or the GLP1R agonist exendin-4, did not induce neuritogenesis, or elevation of cAMP, presumably as a result of insufficient receptor protein expression. Vasoactive intestinal polypeptide and exendin-4 did induce neuritogenesis after transduction of human VIPR1, VIPR2 and GLP1R into NS-1 cells. Exendin-4/GLP1R-stimulated neuritogenesis was MEK-ERK-dependent (blocked by U0126), indicating its use of the cAMP→RapGEF2→ERK neuritogenic signalling pathway previously identified for PACAP/PAC1 signalling in NS-1 cells. NCS-RapGEF2 is expressed in the rodent insulinoma cell lines MIN6 and INS-1, as well as in human pancreatic islets. As in NS-1 cells, exendin-4 caused ERK phosphorylation in INS-1 cells. Reduction in RapGEF2 expression after RapGEF2-shRNA treatment reduced exendin-4-induced ERK phosphorylation. Transcriptome analysis of INS-1 cells after 1 hour of exposure to exendin-4 revealed an immediate early-gene response that was composed of both ERK-dependent and ERK-independent signalling targets. We propose that cAMP signalling initiated by glucagon-like peptide 1 (GLP-1) in pancreatic beta cells causes parallel activation of multiple cAMP effectors, including NCS-RapGEF2, Epac and protein kinase A, to separately control various facets of GLP-1 action, including insulin secretion and transcriptional modulation.
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Affiliation(s)
- Wenqin Xu
- Section on Molecular Neuroscience, National Institute of Mental Health – Intramural Research Program, Bethesda, MD, USA
| | - Sam P. Dahlke
- Section on Molecular Neuroscience, National Institute of Mental Health – Intramural Research Program, Bethesda, MD, USA
| | - Andrew C. Emery
- Section on Molecular Neuroscience, National Institute of Mental Health – Intramural Research Program, Bethesda, MD, USA
| | - Michelle Sung
- Section on Molecular Neuroscience, National Institute of Mental Health – Intramural Research Program, Bethesda, MD, USA
| | - Oleg G. Chepurny
- Department of Medicine, Upstate Medical University, State University of New York, Syracuse, NY, USA
| | - George G. Holz
- Department of Medicine, Upstate Medical University, State University of New York, Syracuse, NY, USA
| | - Lee E. Eiden
- Section on Molecular Neuroscience, National Institute of Mental Health – Intramural Research Program, Bethesda, MD, USA
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48
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Han Y, Xia G, He Y, He Y, Farias M, Xu Y, Wu Q. A hindbrain dopaminergic neural circuit prevents weight gain by reinforcing food satiation. SCIENCE ADVANCES 2021; 7:eabf8719. [PMID: 34039606 DOI: 10.1126/sciadv.abf8719] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 04/06/2021] [Indexed: 06/12/2023]
Abstract
The neural circuitry mechanism that underlies dopaminergic (DA) control of innate feeding behavior is largely uncharacterized. Here, we identified a subpopulation of DA neurons situated in the caudal ventral tegmental area (cVTA) directly innervating DRD1-expressing neurons within the lateral parabrachial nucleus (LPBN). This neural circuit potently suppresses food intake via enhanced satiation response. Notably, this cohort of DAcVTA neurons is activated immediately before the cessation of each feeding bout. Acute inhibition of these DA neurons before bout termination substantially suppresses satiety and prolongs the consummatory feeding. Activation of postsynaptic DRD1LPBN neurons inhibits feeding, whereas genetic deletion of Drd1 within the LPBN causes robust increase in food intake and subsequent weight gain. Furthermore, the DRD1LPBN signaling manifests the central mechanism in methylphenidate-induced hypophagia. In conclusion, our study illuminates a hindbrain DAergic circuit that controls feeding through dynamic regulation in satiety response and meal structure.
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Affiliation(s)
- Yong Han
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
| | - Guobin Xia
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
| | - Yanlin He
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
| | - Yang He
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
| | - Monica Farias
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
| | - Yong Xu
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA
| | - Qi Wu
- USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA.
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49
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Montégut L, Lopez-Otin C, Magnan C, Kroemer G. Old Paradoxes and New Opportunities for Appetite Control in Obesity. Trends Endocrinol Metab 2021; 32:264-294. [PMID: 33707095 DOI: 10.1016/j.tem.2021.02.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 02/09/2021] [Accepted: 02/11/2021] [Indexed: 12/13/2022]
Abstract
Human obesity is accompanied by alterations in the blood concentrations of multiple circulating appetite regulators. Paradoxically, most of the appetite-inhibitory hormones are elevated in nonsyndromic obesity, while most of the appetite stimulatory hormones are reduced, perhaps reflecting vain attempts of regulation by inefficient feedback circuitries. In this context, it is important to understand which appetite regulators exhibit a convergent rather than paradoxical behavior and hence are likely to contribute to the maintenance of the obese state. Pharmacological interventions in obesity should preferentially consist of the supplementation of deficient appetite inhibitors or the neutralization of excessive appetite stimulators. Here, we critically analyze the current literature on appetite-regulatory peptide hormones. We propose a short-list of appetite modulators that may constitute the best candidates for therapeutic interventions.
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Affiliation(s)
- Léa Montégut
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue Contre le Cancer, Université de Paris, Sorbonne Université, INSERM U1138, Institut Universitaire de France, Paris, France; Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
| | - Carlos Lopez-Otin
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, 33006, Oviedo, Spain
| | | | - Guido Kroemer
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue Contre le Cancer, Université de Paris, Sorbonne Université, INSERM U1138, Institut Universitaire de France, Paris, France; Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France; Unité de Biologie Fonctionnelle et Adaptative, Sorbonne Paris Cité, CNRS UMR8251, Université Paris Diderot, Paris, France; Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-, HP, Paris, France; Suzhou Institute for Systems Medicine, Chinese Academy of Medical Sciences, Suzhou, China; Karolinska Institute, Department of Women's and Children's Health, Karolinska University Hospital, Stockholm, Sweden.
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Li KX, Ji MJ, Sun HJ. An updated pharmacological insight of resveratrol in the treatment of diabetic nephropathy. Gene 2021; 780:145532. [PMID: 33631244 DOI: 10.1016/j.gene.2021.145532] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 02/03/2021] [Accepted: 02/09/2021] [Indexed: 02/06/2023]
Abstract
As one of the most common complications of diabetes, nephropathy develops in approximately 40% of diabetic individuals. Although end stage kidney disease is known as one of the most consequences of diabetic nephropathy, the majority of diabetic individuals might die from cardiovascular diseases and infections before renal replacement treatment. Moreover, the routine medical treatments for diabetes hold undesirable side effects. The explosive prevalence of diabetes urges clinicians and scientists to investigate the complementary or alternative therapies. Phytochemicals are emerging as alternatives with a wide range of therapeutic effects on various pathologies, including diabetic kidney disease. Of those phytochemicals, resveratrol, a natural polyphenolic stilbene, has been found to exert a broad spectrum of health benefits via various signaling molecules. In particular, resveratrol has gained a great deal of attention because of its anti-oxidative, anti-inflammatory, anti-diabetic, anti-obesity, cardiovascular-protective, and anti-tumor properties. In the renal system, emerging evidence shows that resveratrol has already been used to ameliorate chronic or acute kidney injury. This review critically summarizes the current findings and molecular mechanisms of resveratrol in diabetic renal damage. In addition, we will discuss the adverse and inconsistent effects of resveratrol in diabetic nephropathy. Although there is increasing evidence that resveratrol affords great potential in diabetic nephropathy therapy, these results should be treated with caution before its clinical translation. In addition, the unfavorable pharmacokinetics and/or pharmacodynamics profiles, such as poor bioavailability, may limit its extensive clinical applications. It is clear that further research is needed to unravel these limitations and improve its efficacy against diabetic nephropathy. Increasing investigation of resveratrol in diabetic kidney disease will not only help us better understand its pharmacological actions, but also provide novel potential targets for therapeutic intervention.
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Affiliation(s)
- Ke-Xue Li
- Department of Physiology, Xuzhou Medical University, Xuzhou 221004, China
| | - Miao-Jin Ji
- Jiangsu Province Key Laboratory of Anesthesiology, School of Anesthesiology, Xuzhou Medical University, Xuzhou 221004, China.
| | - Hai-Jian Sun
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi 214122, China; Yong Loo Lin School of Medicine, National University of Singapore, 117597, Singapore.
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