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Thupakula S, Nimmala SSR, Dawood SM, Padiya R. Synergistic anti-diabetic effect of phloroglucinol and total procyanidin dimer isolated from Vitisvinifera methanolic seed extract potentiates via suppressing oxidative stress: in-vitro evaluation studies. 3 Biotech 2024; 14:76. [PMID: 38371900 PMCID: PMC10866825 DOI: 10.1007/s13205-024-03929-4] [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] [Accepted: 01/11/2024] [Indexed: 02/20/2024] Open
Abstract
Diabetes is often associated with increased oxidative stress caused by an imbalance between detoxification and ROS production. Unfortunately, many commercial drugs available today for treating this disease have adverse side effects and ultimately fail to restore glucose homeostasis. Therefore, finding a dietary anti-diabetic remedy that is safe, effective, and economical is crucial. In this study, GC-MS analysis, subsequent HPLC-assisted fractionation, and SPE-based purification led to identifying and purifying of key components such as phloroglucinol and total procyanidin dimer (procyanidin dimer and procyanidin dimer gallate) from methanolic seed extract of Vitis vinifera. In-vitro anti-diabetic screening of various fractions derived from methanolic extract along with individual components and their combinations revealed the potential synergistic behaviour of phloroglucinol and total procyanidin dimer with the lowest IC50 of 48.21 ± 3.54 µg/mL for α-glucosidase and 63.06 ± 5.38 µg/mL for α-amylase inhibition which is found to be superior to the effect shown by the standard Epigallocatechin gallate. Later Glucose utilization studies demonstrated the concentration-dependent effect of Phloroglucinol and total procyanidin dimer, and that has raised the glucose uptake by approximately 36-57% in HepG2 cells and 35-58% in L6 myocytes over a concentration of 50-100 µg/mL. The superior anti-diabetic effect of Phloroglucinol and total procyanidin dimer was proved by the suppression of oxidative stress with an IC50 of 7.92 ± 0.36 µg/mL for DPPH scavenging and 16.87 ± 1.24 µg/mL for SOD scavenging which is competent with the standard ascorbic acid. According to this study, suppressing ROS levels by phloroglucinol and total procyanidin dimer would be the underlying mechanism for the synergistic anti-diabetic effect of this combination. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-024-03929-4.
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Affiliation(s)
- Sreenu Thupakula
- Department of Biochemistry, University College of Science, Osmania University, Amberpet, Hyderabad, Telangana State 500007 India
| | - Shiva Shankar Reddy Nimmala
- Department of Biochemistry, University College of Science, Osmania University, Amberpet, Hyderabad, Telangana State 500007 India
| | - Shauq Mumtaz Dawood
- Department of Biochemistry, University College of Science, Osmania University, Amberpet, Hyderabad, Telangana State 500007 India
| | - Raju Padiya
- Department of Biochemistry, University College of Science, Osmania University, Amberpet, Hyderabad, Telangana State 500007 India
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2
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Shimonty A, Bonewald LF, Huot JR. Metabolic Health and Disease: A Role of Osteokines? Calcif Tissue Int 2023; 113:21-38. [PMID: 37193929 DOI: 10.1007/s00223-023-01093-0] [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: 03/06/2023] [Accepted: 05/01/2023] [Indexed: 05/18/2023]
Abstract
Maintenance of skeletal health is tightly regulated by osteocytes, osteoblasts, and osteoclasts via coordinated secretion of bone-derived factors, termed osteokines. Disruption of this coordinated process due to aging and metabolic disease promotes loss of bone mass and increased risk of fracture. Indeed, growing evidence demonstrates that metabolic diseases, including type 2 diabetes, liver disease and cancer are accompanied by bone loss and altered osteokine levels. With the persistent prevalence of cancer and the growing epidemic of metabolic disorders, investigations into the role of inter-tissue communication during disease progression are on the rise. While osteokines are imperative for bone homeostasis, work from us and others have identified that osteokines possess endocrine functions, exerting effects on distant tissues including skeletal muscle and liver. In this review we first discuss the prevalence of bone loss and osteokine alterations in patients with type 2 diabetes, non-alcoholic fatty liver disease, non-alcoholic steatohepatitis, cirrhosis, and cancer. We then discuss the effects of osteokines in mediating skeletal muscle and liver homeostasis, including RANKL, sclerostin, osteocalcin, FGF23, PGE2, TGF-β, BMPs, IGF-1 and PTHrP. To better understand how inter-tissue communication contributes to disease progression, it is essential that we include the bone secretome and the systemic roles of osteokines.
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Affiliation(s)
- Anika Shimonty
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, IN, USA
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Lynda F Bonewald
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, IN, USA
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA
- Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, IN, USA
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Joshua R Huot
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, IN, USA.
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA.
- Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, IN, USA.
- Department of Kinesiology, School of Health and Human Sciences, Indiana University Purdue University Indianapolis, Indianapolis, IN, USA.
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3
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Hepatokines and Adipokines in Metabolic Syndrome. ANNALS OF THE NATIONAL ACADEMY OF MEDICAL SCIENCES (INDIA) 2023. [DOI: 10.1055/s-0042-1760087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Abstract
AbstractHepatokines and adipokines are secretory proteins derived from hepatocytes and adipocytes, respectively. These proteins play a main role in the pathogenesis of metabolic syndrome (MetS), characterized by obesity, dysglycemia, insulin resistance, dyslipidemia, and hypertension. Adipose tissue and liver are important endocrine organs because they regulate metabolic homeostasis as well as inflammation because they secrete adipokines and hepatokines, respectively. These adipokines and hepatokines communicate their action through different autocrine, paracrine and endocrine pathways. Liver regulates systemic homeostasis and also glucose and lipid metabolism through hepatokines. Dysregulation of hepatokines can lead to progression toward MetS, type 2 diabetes (T2D), inflammation, hypertension, and other diseases. Obesity is now a worldwide epidemic. Increasing cases of obesity and obesity-associated metabolic syndrome has brought the focus on understanding the biology of adipocytes and the mechanisms occurring in adipose tissue of obese individuals. A lot of facts are now available on adipose tissue as well. Adipose tissue is now given the status of an endocrine organ. Recent evidence indicates that obesity contributes to systemic metabolic dysfunction. Adipose tissue plays a significant role in systemic metabolism by communicating with other central and peripheral organs via the production and secretion of a group of proteins known as adipokines. Adipokine levels regulate metabolic state of our body and are potent enough to have a direct impact upon energy homeostasis and systemic metabolism. Dysregulation of adipokines contribute to obesity, T2D, hypertension and several other pathological changes in various organs. This makes characterization of hepatokines and adipokines extremely important to understand the pathogenesis of MetS. Hepatokines such as fetuin-A and leukocyte cell-derived chemotaxin 2, and adipokines such as resistin, leptin, TNF-α, and adiponectin are some of the most studied proteins and they can modulate the manifestations of MetS. Detailed insight into the function and mechanism of these adipokines and hepatokines in the pathogenesis of MetS can show the path for devising better preventative and therapeutic strategies against this present-day pandemic.
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Monteiro JP, Morine MJ, Ued FV, Kaput J. Identifying and Analyzing Topic Clusters in a Nutri-, Food-, and Diet-Proteomic Corpus Using Machine Reading. Nutrients 2023; 15:nu15020270. [PMID: 36678141 PMCID: PMC9863309 DOI: 10.3390/nu15020270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 12/27/2022] [Accepted: 12/30/2022] [Indexed: 01/06/2023] Open
Abstract
Nutrition affects the early stages of disease development, but the mechanisms remain poorly understood. High-throughput proteomic methods are being used to generate data and information on the effects of nutrients, foods, and diets on health and disease processes. In this report, a novel machine reading pipeline was used to identify all articles and abstracts on proteomics, diet, food, and nutrition in humans. The resulting proteomic corpus was further analyzed to produce seven clusters of "thematic" content defined as documents that have similar word content. Examples of publications from several of these clusters were then described in a similar way to a typical descriptive review.
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Affiliation(s)
- Jacqueline Pontes Monteiro
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Avenue, 3900, Ribeirão Preto 14049-900, Brazil
- Correspondence:
| | | | - Fabio V. Ued
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, Bandeirantes Avenue, 3900, Ribeirão Preto 14049-900, Brazil
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Toprak K, Kaplangoray M, Palice A, Taşcanov MB, Altıparmak İH, Biçer A, Demirbağ R. Ectodysplasin A is associated with the presence and severity of coronary artery disease and poor long-term clinical outcome in patients presenting with ST-elevation myocardial infarction. Acta Clin Belg 2022:1-10. [DOI: 10.1080/17843286.2022.2140246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kenan Toprak
- Department of Cardiology, Faculty of Medicine, Harran University, Sanliurfa, Turkey
| | | | - Ali Palice
- Mehmet Akif Inan Training and Research Hospital, Sanlıurfa, Turkey
| | | | | | - Asuman Biçer
- Department of Cardiology, Faculty of Medicine, Harran University, Sanliurfa, Turkey
| | - Recep Demirbağ
- Department of Cardiology, Faculty of Medicine, Harran University, Sanliurfa, Turkey
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Antonijević A, Stojanović E, Jevtić A, Živković V, Bolevich S, Jakovljević V. The effect of a 6-month walking program on biochemical parameters in sedentary adults with type 2 diabetes mellitus. NAGOYA JOURNAL OF MEDICAL SCIENCE 2022; 84:580-592. [PMID: 36237879 PMCID: PMC9529630 DOI: 10.18999/nagjms.84.3.580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 11/02/2021] [Indexed: 11/25/2022]
Abstract
This study assessed the effect of a 6-month walking program on biochemical parameters in patients with type-2 diabetes mellitus. A group of 40 sedentary patients with type-2 diabetes volunteered to participate in this study. Plasma glucose, triglyceride, total cholesterol, low-density lipoprotein cholesterol (LDL), high-density lipoprotein cholesterol (HDL), aspartate aminotransferase (AST), alanine aminotransferase (ALT), gamma-glutamyl transferase, urea, creatinine, uric acid, C-reactive protein (CRP), and erythrocyte sedimentation rate were measured. Differences in outcome measures between pre- and post-intervention were assessed using paired t-test or Wilcoxon signed-rank test, with effect sizes interpreted separately for normally (µ2: small 0.01-0.06, moderate 0.061-0.14, and large >0.14) and non-normally distributed data (r: small = 0.1-0.3, moderate = 0.3-0.5, and large >0.5). Significant (p < 0.001) large decrease between the initial and final measurements was observed for glucose (r = 0.62), total cholesterol (µ2 = 0.88), triglycerides (r = 0.62), LDL (r = 0.61), AST (µ2 = 0.82), ALT (µ2 = 0.79), gamma-glutamyl transferase (µ2 = 0.79), urea (µ2 = 0.92), creatinine (r = 0.62), uric acid (r = 0.62), CRP (µ2 = 0.80), and erythrocyte sedimentation rate (µ2 = 0.58). On the other hand, significant (p < 0.001) large increase between the initial and final measurements was observed for HDL (r = 0.62). Supervised 6-month aerobic walking program is an effective strategy in (1) reducing hyperglycemia; (2) increasing HDL and reducing LDL, and triglycerides; (3) reducing plasma biomarkers of liver dysfunction, kidney dysfunction, and inflammation in type-2 diabetic patients.
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Affiliation(s)
| | - Emilija Stojanović
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
,Department of Sport Exercise and Health, Faculty of Medicine, University of Basel, Basel, Switzerland
| | | | - Vladimir Živković
- Department of Sport Exercise and Health, Faculty of Medicine, University of Basel, Basel, Switzerland
| | - Sergey Bolevich
- Department of Human Pathology, IM Sechenov 1st Moscow State Medical University, Moscow, Russian Federation
| | - Vladimir Jakovljević
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
,Department of Human Pathology, IM Sechenov 1st Moscow State Medical University, Moscow, Russian Federation
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Association Between Serum Afamin Levels with Nonalcoholic Associated Fatty Liver Disease. Can J Gastroenterol Hepatol 2022; 2022:7175108. [PMID: 35800214 PMCID: PMC9256457 DOI: 10.1155/2022/7175108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Accepted: 06/13/2022] [Indexed: 11/18/2022] Open
Abstract
Afamin is a member of the hepatokine that are strongly associated with various metabolic diseases. The relationship between afamin and nonalcoholic fatty liver disease (NAFLD) remains unclear. This study aimed to explore the correlation between serum afamin levels and NAFLD. We analyzed 88 NAFLD patients and 88 age- and sex-matched healthy controls who took their health examinations at the First Affiliated Hospital, Zhejiang University School of Medicine. The association was further confirmed in 22 biopsy-confirmed NAFLD patients and 36 healthy controls. Serum afamin levels were evaluated using an enzyme-linked immunosorbent assay (ELISA). NAFLD patients had significantly higher serum afamin levels than the healthy controls (14.79 ± 5.04 mg/L versus 10.83 ± 3.24 mg/L; P < 0.001). Serum afamin levels were positively correlated with metabolic parameters including the body mass index, waist circumference, systolic blood pressure, liver enzymes, and lipid profiles. A multiple regression analysis showed that serum afamin levels were independently related to the risk of NAFLD (OR: 1.289, 95% CI, 1.141-1.456; P < 0.001). The receiver operating characteristic (ROC) analysis showed that the area under curve (AUC) of serum afamin plus the BMI for detecting NAFLD was 0.878. In participants with liver biopsies, the serum afamin plus the BMI detected NAFLD with an AUC of 0.758. In conclusion, serum afamin levels were positively associated with prevalence and risk of NAFLD, and serum afamin plus the BMI had a high diagnostic performance for NAFLD. This study provides epidemiological evidence of afamin in NAFLD.
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Qin YJ, Xiao K, Zhong Z, Zhao Y, Yu T, Sun XF. LECT2 Ameliorates Blood-Retinal Barrier Impairment Secondary to Diabetes Via Activation of the Tie2/Akt/mTOR Signaling Pathway. Invest Ophthalmol Vis Sci 2022; 63:7. [PMID: 35262733 PMCID: PMC8934553 DOI: 10.1167/iovs.63.3.7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Purpose Current treatments for diabetic retinopathy (DR) have considerable limitations, emphasizing the need for new therapeutic options. The effect of leukocyte cell-derived chemotaxin 2 (LECT2) on diabetes-induced blood–retinal barrier impairment and the possible underlying mechanism were investigated both in vivo and in vitro. Methods Twenty diabetic and 22 nondiabetic eyes were included in this study. Additionally, we established a streptozotocin-induced diabetic mouse model and observed vascular leakage in mice treated with or without recombinant LECT2 (rLECT2) intravitreal injection (40 µg/mL, 1 µL). The levels of LECT2 and interendothelial junction proteins (ZO1, VE-cadherin, and occludin) were analyzed by western blot and/or immunofluorescence. Endothelial junctions in mouse retinas were observed by transmission electron microscopy (TEM). Moreover, confluent human retinal microvascular endothelial cells (HRMECs) and human umbilical vein endothelial cells (HUVECs) were treated (0–72 hours) with glucose (0 or 30 mM) in the presence or absence of rLECT2 (40–360 ng/mL). After treatment, intact cell monolayers were monitored for permeability to 40-kD FITC-dextran. Interendothelial junction targets and Tie2/Akt/mTOR signaling pathway components were investigated by western blot. Results In diabetic human and mouse retinas and high-glucose (30 mM)–treated HRMECs and HUVECs, the levels of LECT2 and interendothelial junction proteins were decreased. rLECT2 treatment (80 ng/mL) significantly attenuated the hyperglycemia-induced reduction in endothelial cell barrier function and inhibited the migration and tube formation of HRMECs and HUVECs. In addition, rLECT2 increased the levels of interendothelial junction proteins via activation of the Tie2/Akt/mTOR signaling pathway. Furthermore, intravitreal rLECT2 injections increased the levels of interendothelial junction proteins and reversed diabetes-induced junction disruption. Conclusions rLECT2 can increase the levels of interendothelial tight junction proteins through activation of the Tie2/Akt/mTOR signaling pathway and can ameliorate inner blood–retinal barrier impairment secondary to diabetes. LECT2 might be a potential target to prevent the progression of DR.
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Affiliation(s)
- Yuan-Jun Qin
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, People's Republic of China
| | - Ke Xiao
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, People's Republic of China
| | - Zheng Zhong
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, People's Republic of China
| | - Yin Zhao
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, People's Republic of China
| | - Tian Yu
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, People's Republic of China
| | - Xu-Fang Sun
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, People's Republic of China
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9
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Wang YY, Wang YD, Qi XY, Liao ZZ, Mai YN, Xiao XH. Organokines and Exosomes: Integrators of Adipose Tissue Macrophage Polarization and Recruitment in Obesity. Front Endocrinol (Lausanne) 2022; 13:839849. [PMID: 35273574 PMCID: PMC8902818 DOI: 10.3389/fendo.2022.839849] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 01/24/2022] [Indexed: 12/21/2022] Open
Abstract
The prevalence of obesity is escalating and has become a worldwide health challenge coinciding with the development of metabolic diseases. Emerging evidence has shown that obesity is accompanied by the infiltration of macrophages into adipose tissue, contributing to a state of low-grade chronic inflammation and dysregulated metabolism. Moreover, in the state of obesity, the phenotype of adipose tissue macrophages switches from the M2 polarized state to the M1 state, thereby contributing to chronic inflammation. Notably, multiple metabolic organs (adipose tissue, gut, skeletal muscle, and the liver) communicate with adipose tissue macrophages via secreting organokines or exosomes. In this review, we systematically summarize how the organokines (adipokines, gut microbiota and its metabolites, gut cytokines, myokines, and hepatokines) and exosomes (adipocyte-, skeletal muscle-, and hepatocyte-derived exosomes) act as important triggers for macrophage recruitment in adipose tissue and adipose tissue macrophage polarization, thus providing further insight into obesity treatment. In addition, we also highlight the complex interaction of organokines with organokines and organokines with exosomes, revealing new paths in understanding adipose tissue macrophage recruitment and polarization.
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Chang WC, Lee CH, Chiou SH, Liao CC, Cheng CW. Proteomic Analysis of Aqueous Humor Proteins in Association with Cataract Risks: Diabetes and Smoking. J Clin Med 2021; 10:jcm10245731. [PMID: 34945026 PMCID: PMC8703435 DOI: 10.3390/jcm10245731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/01/2021] [Accepted: 12/05/2021] [Indexed: 11/16/2022] Open
Abstract
Cataracts are one of the most common eye diseases that can cause blindness. Discovering susceptibility factors in the proteome that contribute to cataract development would be helpful in gaining new insights in the molecular mechanisms of the cataract process. We used label-free nanoflow ultra-high-performance liquid chromatography–tandem mass spectrometry to compare aqueous humor protein expressions in cataract patients with different cataract risk factors such as diabetes mellitus (DM) and smoking and in controls (with cataract) without risk exposure. Eight patients with diabetes and who smoked (with double risk factors), five patients with diabetes and five patients who smoked (both with a single risk factor), and nine aged-matched cataract controls patients (non-risk exposure) were enrolled. In total, 136 aqueous humor proteins were identified, of which only alpha-2-Heremans–Schmid (HS)-glycoprotein was considered to be significantly risk-associated because it was differentially expressed in these three groups and exhibited increased expression with increasing risk factors. Significant changes in the aqueous humor level of alpha-2-HS-glycoprotein between DM and control samples and between smoking and control samples were confirmed using ELISA. The alpha-2-HS-glycoprotein, called fetuin-a, could be a potential aqueous biomarker associated with DM and smoking, which were cataract risk factors.
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Affiliation(s)
- Wei-Cheng Chang
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan;
- Department of Ophthalmology, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan 33004, Taiwan
| | - Cho-Hao Lee
- Division of Hematology and Oncology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei 114202, Taiwan;
| | - Shih-Hwa Chiou
- Department of Medical Research, Taipei Veterans General Hospital, Taipei 11217, Taiwan;
- School of Medicine, National Yang-Ming University, Taipei 11221, Taiwan
- Institute of Pharmacology, National Yang-Ming University, Taipei 11221, Taiwan
- Genomic Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Chen-Chung Liao
- Metabolomics-Proteomics Research Center, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan;
| | - Chao-Wen Cheng
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan;
- Traditional Herbal Medicine Research Center, Taipei Medical University Hospital, Taipei Medical University, Taipei 11031, Taiwan
- Cell Physiology and Molecular Image Research Center, Wan Fang Hospital, Taipei Medical University, Taipei 11031, Taiwan
- Correspondence:
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11
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Rhyu J, Yu R. Newly discovered endocrine functions of the liver. World J Hepatol 2021; 13:1611-1628. [PMID: 34904032 PMCID: PMC8637678 DOI: 10.4254/wjh.v13.i11.1611] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 07/05/2021] [Accepted: 09/23/2021] [Indexed: 02/06/2023] Open
Abstract
The liver, the largest solid visceral organ of the body, has numerous endocrine functions, such as direct hormone and hepatokine production, hormone metabolism, synthesis of binding proteins, and processing and redistribution of metabolic fuels. In the last 10 years, many new endocrine functions of the liver have been discovered. Advances in the classical endocrine functions include delineation of mechanisms of liver production of endocrine hormones [including 25-hydroxyvitamin D, insulin-like growth factor 1 (IGF-1), and angiotensinogen], hepatic metabolism of hormones (including thyroid hormones, glucagon-like peptide-1, and steroid hormones), and actions of specific binding proteins to glucocorticoids, sex steroids, and thyroid hormones. These studies have furthered insight into cirrhosis-associated endocrinopathies, such as hypogonadism, osteoporosis, IGF-1 deficiency, vitamin D deficiency, alterations in glucose and lipid homeostasis, and controversially relative adrenal insufficiency. Several novel endocrine functions of the liver have also been unraveled, elucidating the liver’s key negative feedback regulatory role in the pancreatic α cell-liver axis, which regulates pancreatic α cell mass, glucagon secretion, and circulating amino acid levels. Betatrophin and other hepatokines, such as fetuin-A and fibroblast growth factor 21, have also been discovered to play important endocrine roles in modulating insulin sensitivity, lipid metabolism, and body weight. It is expected that more endocrine functions of the liver will be revealed in the near future.
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Affiliation(s)
- Jane Rhyu
- Division of Endocrinology, Diabetes, and Metabolism, UCLA David Geffen School of Medicine, Los Angeles, CA 90095, United States
| | - Run Yu
- Division of Endocrinology, Diabetes, and Metabolism, UCLA David Geffen School of Medicine, Los Angeles, CA 90095, United States
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12
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The Hepatic Stellate Cells (HSTCs) and Adipose-derived Mesenchymal Stem Cells (ASCs) Axis as a Potential Major Driver of Metabolic Syndrome - Novel Concept and Therapeutic Implications. Stem Cell Rev Rep 2021; 18:1417-1422. [PMID: 34822062 PMCID: PMC9033713 DOI: 10.1007/s12015-021-10304-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/14/2021] [Indexed: 11/27/2022]
Abstract
Abstract Herein, we would like to introduce a novel concept for the prevention and treatment of metabolic syndrome, which is based on molecular relationship between liver and adipose tissue. Particularly, we believe, that unravelling the molecular crosstalk between hepatokines and adipokines will allow to better understand the pathophysiology of metabolic diseases and allow to develop novel, effective therapeutic solutions against obesity and metabolic syndrome. Graphical Abstract Inter-organ communication on the level of stem progenitor cells-hepatic stellate cells (HSTCs) and adipose-derived progenitors (ASCs) could represents a key mechanism involved in controlling glucose tolerance as well as insulin sensitivity. ![]()
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13
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Liu W, Sun C, Yan Y, Cao H, Niu Z, Shen S, Liu S, Wu Y, Li Y, Hui L, Li Y, Zhao L, Hu C, Ding Q, Jiang J, Ying H. Hepatic P38 Activation Modulates Systemic Metabolism Through Fgf21-Mediated Interorgan Communication. Diabetes 2021; 71:db210240. [PMID: 34957482 DOI: 10.2337/db21-0240] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 10/13/2021] [Indexed: 11/13/2022]
Abstract
The mechanisms underlying the pathogenesis of steatosis and insulin resistance in nonalcoholic fatty liver disease remain elusive. Increased phosphorylation of hepatic p38 has long been noticed in fatty liver; however, whether the activation of hepatic p38 is a cause or consequence of liver steatosis is unclear. Here, we demonstrate that hepatic p38 activation by MKK6 overexpression in the liver of mice induces severe liver steatosis, reduces fat mass, and elevates circulating fatty acid levels in a hepatic p38α- and FGF21-dependent manner. Mechanistically, through increasing the FGF21 production from liver, hepatic p38 activation increases the influx of fatty acids from adipose tissue to liver, leading to hepatic ectopic lipid accumulation and insulin resistance. Although hepatic p38 activation exhibits favorable effects in peripheral tissues, it impairs the hepatic FGF21 action by facilitating the ubiquitination and degradation of FGF21 receptor cofactor β-Klotho. Consistently, we show that p38 phosphorylation and FGF21 expffression are increased, β-Klotho protein levels are decreased in the fatty liver of either mice or patients. In conclusion, our study reveals previously undescribed effects of hepatic p38 activation on systemic metabolism and provides new insights into the roles of hepatic p38α, FGF21, and β-Klotho in the pathogenesis of nonalcoholic fatty liver disease.
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Affiliation(s)
- Wei Liu
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of 1CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Sciences; Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Chao Sun
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of 1CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Sciences; Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Ying Yan
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of 1CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Sciences; Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Hongchao Cao
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of 1CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Sciences; Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Zhoumin Niu
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of 1CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Sciences; Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Siyi Shen
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of 1CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Sciences; Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Shengnan Liu
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of 1CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Sciences; Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yuting Wu
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of 1CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Sciences; Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yan Li
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Lijian Hui
- Laboratory of Molecular Cell Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yuying Li
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of 1CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Sciences; Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Lin Zhao
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Cheng Hu
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Qiurong Ding
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of 1CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Sciences; Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Jingjing Jiang
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hao Ying
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of 1CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Sciences; Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
- Innovation Center for Intervention of Chronic Disease and Promotion of Health
- Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing, China
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14
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Shemirani F, Fotouhi A, Djafarian K, Azadbakht L, Rezaei N, Mahmoudi M. Effects of modified-Paleo and moderate-carbohydrate diets on body composition, serum levels of hepatokines and adipocytokines, and flow cytometric analysis of endothelial microparticles in adults with metabolic syndrome: a study protocol for a randomized clinical trial. Trials 2021; 22:673. [PMID: 34593030 PMCID: PMC8483422 DOI: 10.1186/s13063-021-05612-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 09/08/2021] [Indexed: 11/12/2022] Open
Abstract
Background Metabolic syndrome is a combination of metabolic risk factors causing a pathological condition that increases the risk of non-communicable diseases, such as diabetes and cardiovascular diseases. A variety of dietary approaches have been examined to halt this rapid trend; however, the effects of modified-Paleo diet and medium-carbohydrate diet on inflammation, adipokines, hepatokines, and the profile of endothelial microparticles in individuals with metabolic syndrome have not been investigated in detail. The present study is designed to examine the effect of modified-Paleo and moderate-carbohydrate diet with two delivery modes: “fixed diet plan” vs “calorie counting” on weight, body composition, serum levels of some hepatokines and adipocytokines, and flow cytometric analysis of endothelial microparticles in adults with metabolic syndrome. Methods Eighty metabolic syndrome patients will be recruited in this study. They will be randomly allocated to one of the following 4 groups: (1) receiving a modified-Paleo diet with calorie counting, (2) receiving a modified-Paleo diet with a fixed diet plan, (3) receiving a medium-carbohydrate diet with calorie counting, and (4) receiving a medium-carbohydrate diet with a fixed diet plan for 10 weeks. Weight, height, waist circumference, and body composition will be assessed at the study baseline and at the end of the trial. Serum insulin, asprosin, chemerin, FGF-21, CTRP-1, PYY, ghrelin, plasma EMPs (CD31+/CD42b− and CD144+/CD42b−), lipid profile, glycemic indices, hs-CRP, leptin, vitamin C, creatinine and satiety, hunger, fullness, and desire to eat (via visual analog scales) will be measured at the study baseline and at the end of the trial. Insulin resistance and insulin sensitivity will be determined using the HOMA-IR and QUICKI equations. Discussion To the best of our knowledge, this is the first randomized controlled trial that will determine the effect of modified-Paleo and moderate-carbohydrate diet on weight, body composition, serum levels of some hepatokines and adipocytokines, and the profile of EMPs in adults with metabolic syndrome. Moreover, the effects of different diet delivery modes, including “fixed diet plan” and “calorie counting” will also be analyzed. The results of this trial can provide clinical witnesses on the effectiveness of carbohydrate-restricted diets in ameliorating metabolic status and prevent the development of chronic diseases. Trial registration Iranian Registry of Clinical Trials IRCT2016121925267N4. Registered on 26 July 2017 Supplementary Information The online version contains supplementary material available at 10.1186/s13063-021-05612-y.
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Affiliation(s)
- Farnoosh Shemirani
- Department of Cellular and Molecular Nutrition, School of Nutritional Science and Dietetics, Tehran University of Medical Sciences, Tehran, 14155-6447, Iran
| | - Akbar Fotouhi
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Kurosh Djafarian
- Department of Clinical Nutrition, School of Nutritional Science and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Leila Azadbakht
- Department of Community Nutrition, School of Nutritional Science and Dietetics, Tehran University of Medical Sciences, Tehran, Iran.,Diabetes Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.,Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Nima Rezaei
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Mahmoudi
- Department of Cellular and Molecular Nutrition, School of Nutritional Science and Dietetics, Tehran University of Medical Sciences, Tehran, 14155-6447, Iran.
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15
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Zhu S, Bennett S, Li Y, Liu M, Xu J. The molecular structure and role of LECT2 or CHM-II in arthritis, cancer, and other diseases. J Cell Physiol 2021; 237:480-488. [PMID: 34550600 DOI: 10.1002/jcp.30593] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 08/31/2021] [Accepted: 09/11/2021] [Indexed: 12/20/2022]
Abstract
Leukocyte cell-derived chemotaxin-2 (LECT2 or LECT-2), also called chondromodulin II (ChM-II or CHM2) plays a versatile role in various tissues. It was first identified as a chemotactic factor to promote the migration of neutrophils. It was also reported as a hepatokine to regulate glucose metabolism, obesity, and nonalcoholic fatty liver disease. As a secreted factor, LECT2 binds to several cell surface receptors CD209a, Tie1, and Met to regulate inflammatory reaction, fibrogenesis, vascular invasion, and tumor metastasis in various cell types. As an intracellular molecule, it is associated with LECT2-mediated amyloidosis, in which LECT2 misfolding results in insoluble fibrils in multiple tissues such as the kidney, liver, and lung. Recently, LECT2 was found to be associated with the development of rheumatoid arthritis and osteoarthritis, involving the dysregulation of osteoclasts, mesenchymal stem cells, osteoblasts, chondrocytes, and endothelial cells in the bone microenvironment. LECT2 is implicated in the development of cancers, such as hepatocellular carcinoma via MET-mediated PTP1B/Raf1/ERK signaling pathways and is proposed as a biomarker. The mechanisms by which LECT2 regulates diverse pathogenic conditions in various tissues remain to be fully elucidated. Further research to understand the role of LECT2 in a tissue tropism-dependent manner would facilitate the development of LECT2 as a biomarker for diagnosis and therapeutic target.
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Affiliation(s)
- Sipin Zhu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.,School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, Australia
| | - Samuel Bennett
- School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, Australia
| | - Yihe Li
- School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, Australia
| | - Mei Liu
- School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, Australia.,Jiangsu Key Laboratory for Molecular and Medical Biotechnology and College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Jiake Xu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.,School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, Australia
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16
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Geisler CE, Ghimire S, Hepler C, Miller KE, Bruggink SM, Kentch KP, Higgins MR, Banek CT, Yoshino J, Klein S, Renquist BJ. Hepatocyte membrane potential regulates serum insulin and insulin sensitivity by altering hepatic GABA release. Cell Rep 2021; 35:109298. [PMID: 34192533 PMCID: PMC8341405 DOI: 10.1016/j.celrep.2021.109298] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 04/17/2021] [Accepted: 06/03/2021] [Indexed: 01/10/2023] Open
Abstract
Hepatic lipid accumulation in obesity correlates with the severity of hyperinsulinemia and systemic insulin resistance. Obesity-induced hepatocellular lipid accumulation results in hepatocyte depolarization. We have established that hepatocyte depolarization depresses hepatic afferent vagal nerve firing, increases GABA release from liver slices, and causes hyperinsulinemia. Preventing hepatic GABA release or eliminating the ability of the liver to communicate to the hepatic vagal nerve ameliorates the hyperinsulinemia and insulin resistance associated with diet-induced obesity. In people with obesity, hepatic expression of GABA transporters is associated with glucose infusion and disposal rates during a hyperinsulinemic euglycemic clamp. Single-nucleotide polymorphisms in hepatic GABA re-uptake transporters are associated with an increased incidence of type 2 diabetes mellitus. Herein, we identify GABA as a neuro-hepatokine that is dysregulated in obesity and whose release can be manipulated to mute or exacerbate the glucoregulatory dysfunction common to obesity.
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Affiliation(s)
- Caroline E Geisler
- School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, AZ 85721, USA; Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Susma Ghimire
- School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, AZ 85721, USA
| | - Chelsea Hepler
- School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, AZ 85721, USA; Robert H. Lurie Medical Research Center, Northwestern University, Chicago, IL 60611, USA
| | - Kendra E Miller
- School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, AZ 85721, USA
| | - Stephanie M Bruggink
- School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, AZ 85721, USA
| | - Kyle P Kentch
- School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, AZ 85721, USA
| | - Mark R Higgins
- School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, AZ 85721, USA
| | | | - Jun Yoshino
- Center for Human Nutrition, Washington University School of Medicine, St. Louis, MO, USA
| | - Samuel Klein
- Center for Human Nutrition, Washington University School of Medicine, St. Louis, MO, USA
| | - Benjamin J Renquist
- School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, AZ 85721, USA.
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17
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Goodus MT, Carson KE, Sauerbeck AD, Dey P, Alfredo AN, Popovich PG, Bruno RS, McTigue DM. Liver inflammation at the time of spinal cord injury enhances intraspinal pathology, liver injury, metabolic syndrome and locomotor deficits. Exp Neurol 2021; 342:113725. [PMID: 33933462 DOI: 10.1016/j.expneurol.2021.113725] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 04/08/2021] [Accepted: 04/22/2021] [Indexed: 02/07/2023]
Abstract
The current high obesity rates mean that neurological injuries are increasingly sustained on a background of systemic pathology, including liver inflammation, which likely has a negative impact on outcomes. Because obesity involves complex pathology, the effect of hepatic inflammation alone on neurological recovery is unknown. Thus, here we used a gain-of-function model to test if liver inflammation worsens outcome from spinal cord injury (SCI) in rats. Results show liver inflammation concomitant with SCI exacerbated intraspinal pathology and impaired locomotor recovery. Hepatic inflammation also potentiated SCI-induced non-alcoholic steatohepatitis (NASH), endotoxemia and insulin resistance. Circulating and cerebrospinal levels of the liver-derived protein Fetuin-A were higher in SCI rats with liver inflammation, and, when microinjected into intact spinal cords, Fetuin-A caused macrophage activation and neuron loss. Thus, liver inflammation functions as a disease modifying factor to impair recovery from SCI, and Fetuin-A is a potential neuropathological mediator. Since SCI alone induces acute liver inflammation, the liver may be a novel clinical target for improving recovery from SCI.
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Affiliation(s)
- Matthew T Goodus
- The Belford Center for Spinal Cord Injury, Ohio State University, Columbus, OH, USA; Department of Neuroscience, College of Medicine, Ohio State University, Columbus, OH, USA
| | - Kaitlin E Carson
- The Belford Center for Spinal Cord Injury, Ohio State University, Columbus, OH, USA; Department of Neuroscience, College of Medicine, Ohio State University, Columbus, OH, USA
| | - Andrew D Sauerbeck
- The Belford Center for Spinal Cord Injury, Ohio State University, Columbus, OH, USA; Department of Neurology, Washington University in St. Louis, Missouri, USA
| | - Priyankar Dey
- Department of Biotechnology, Thapar Institute of Engineering and Technology, Patiala, Punjab, India
| | - Anthony N Alfredo
- The Belford Center for Spinal Cord Injury, Ohio State University, Columbus, OH, USA; Department of Neuroscience, College of Medicine, Ohio State University, Columbus, OH, USA
| | - Phillip G Popovich
- The Belford Center for Spinal Cord Injury, Ohio State University, Columbus, OH, USA; Department of Neuroscience, College of Medicine, Ohio State University, Columbus, OH, USA
| | - Richard S Bruno
- Department of Human Sciences, College of Education and Human Ecology, The Ohio State University, Columbus, OH, USA
| | - Dana M McTigue
- The Belford Center for Spinal Cord Injury, Ohio State University, Columbus, OH, USA; Department of Neuroscience, College of Medicine, Ohio State University, Columbus, OH, USA.
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18
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Briand F, Maupoint J, Brousseau E, Breyner N, Bouchet M, Costard C, Leste-Lasserre T, Petitjean M, Chen L, Chabrat A, Richard V, Burcelin R, Dubroca C, Sulpice T. Elafibranor improves diet-induced nonalcoholic steatohepatitis associated with heart failure with preserved ejection fraction in Golden Syrian hamsters. Metabolism 2021; 117:154707. [PMID: 33444606 DOI: 10.1016/j.metabol.2021.154707] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 01/04/2021] [Accepted: 01/07/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND Cardiovascular disease is the leading cause of deaths in nonalcoholic steatohepatitis (NASH) patients. Mouse models, while widely used for drug development, do not fully replicate human NASH nor integrate the associated cardiac dysfunction, i.e. heart failure with preserved ejection fraction (HFpEF). To overcome these limitations, we established a nutritional hamster model developing both NASH and HFpEF. We then evaluated the effects of the dual peroxisome proliferator activated receptor alpha/delta agonist elafibranor developed for the treatment of NASH patients. METHODS Male Golden Syrian hamsters were fed for 10 to 20 weeks with a free choice diet, which presents hamsters with a choice between control chow diet with normal drinking water or a high fat/high cholesterol diet with 10% fructose enriched drinking water. Biochemistry, histology and echocardiography analysis were performed to characterize NASH and HFpEF. Once the model was validated, elafibranor was evaluated at 15 mg/kg/day orally QD for 5 weeks. RESULTS Hamsters fed a free choice diet for up to 20 weeks developed NASH, including hepatocyte ballooning (as confirmed with cytokeratin-18 immunostaining), bridging fibrosis, and a severe diastolic dysfunction with restrictive profile, but preserved ejection fraction. Elafibranor resolved NASH, with significant reduction in ballooning and fibrosis scores, and improved diastolic dysfunction with significant reduction in E/A and E/E' ratios. CONCLUSION Our data demonstrate that the free choice diet induced NASH hamster model replicates the human phenotype and will be useful for validating novel drug candidates for the treatment of NASH and associated HFpEF.
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Affiliation(s)
- François Briand
- Physiogenex, 280 rue de l'Hers, ZAC de la Masquère, 31750 Escalquens, France.
| | - Julie Maupoint
- Cardiomedex, 280 rue de l'Hers, ZAC de la Masquère, 31750 Escalquens, France
| | - Emmanuel Brousseau
- Physiogenex, 280 rue de l'Hers, ZAC de la Masquère, 31750 Escalquens, France
| | - Natalia Breyner
- Physiogenex, 280 rue de l'Hers, ZAC de la Masquère, 31750 Escalquens, France
| | - Mélanie Bouchet
- Physiogenex, 280 rue de l'Hers, ZAC de la Masquère, 31750 Escalquens, France
| | - Clément Costard
- Cardiomedex, 280 rue de l'Hers, ZAC de la Masquère, 31750 Escalquens, France
| | | | - Mathieu Petitjean
- PharmaNest, 100 Overlook Center, FL2, Princeton, NJ 08540, United States of America
| | - Li Chen
- PharmaNest, 100 Overlook Center, FL2, Princeton, NJ 08540, United States of America
| | - Audrey Chabrat
- Sciempath Labo, 7 rue de la Gratiole, 37270 Larcay, France
| | | | - Rémy Burcelin
- Inserm U1048 CHU Rangueil, BP 84225, 31432 Toulouse Cedex 4, France
| | - Caroline Dubroca
- Cardiomedex, 280 rue de l'Hers, ZAC de la Masquère, 31750 Escalquens, France
| | - Thierry Sulpice
- Physiogenex, 280 rue de l'Hers, ZAC de la Masquère, 31750 Escalquens, France; Cardiomedex, 280 rue de l'Hers, ZAC de la Masquère, 31750 Escalquens, France
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19
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Hepatocardiac or Cardiohepatic Interaction: From Traditional Chinese Medicine to Western Medicine. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:6655335. [PMID: 33777158 PMCID: PMC7981187 DOI: 10.1155/2021/6655335] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 01/18/2021] [Accepted: 02/05/2021] [Indexed: 12/16/2022]
Abstract
There is a close relationship between the liver and heart based on "zang-xiang theory," "five-element theory," and "five-zang/five-viscus/five-organ correlation theory" in the theoretical system of Traditional Chinese Medicine (TCM). Moreover, with the development of molecular biology, genetics, immunology, and others, the Modern Medicine indicates the existence of the essential interorgan communication between the liver and heart (the heart and liver). Anatomically and physiologically, the liver and heart are connected with each other primarily via "blood circulation." Pathologically, liver diseases can affect the heart; for example, patients with end-stage liver disease (liver failure/cirrhosis) may develop into "cirrhotic cardiomyopathy," and nonalcoholic fatty liver disease (NAFLD) may promote the development of cardiovascular diseases via multiple molecular mechanisms. In contrast, heart diseases can affect the liver, heart failure may lead to cardiogenic hypoxic hepatitis and cardiac cirrhosis, and atrial fibrillation (AF) markedly alters the hepatic gene expression profile and induces AF-related hypercoagulation. The heart can also influence liver metabolism via certain nonsecretory cardiac gene-mediated multiple signals. Moreover, organokines are essential mediators of organ crosstalk, e.g., cardiomyokines link the heart to the liver, while hepatokines link the liver to the heart. Therefore, both TCM and Western Medicine, and both the basic research studies and the clinical practices, all indicate that there exist essential "heart-liver axes" and "liver-heart axes." To investigate the organ interactions between the liver and heart (the heart and liver) will help us broaden and deepen our understanding of the pathogenesis of both liver and heart diseases, thus improving the strategies of prevention and treatment in the future.
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20
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Deng X, Cai Z, Li Y, Wu X, Zhao L, Li H, Chen K, Zhang P, Wang C, Zhao Z, Yang L, Yuan G. Increased Circulating Levels of Ectodysplasin A in Newly Diagnosed Type 2 Diabetic Patients. Front Endocrinol (Lausanne) 2021; 12:737624. [PMID: 34858327 PMCID: PMC8630655 DOI: 10.3389/fendo.2021.737624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 10/06/2021] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE Ectodysplasin A (EDA), a newly discovered hepatokine, has recently been considered to be closely related to glycolipid metabolism disorders, but the pathophysiological effects of EDA are still poorly understood. This study was the first time to determine the level of serum EDA in newly diagnosed type 2 diabetes mellitus (T2DM) patients, and to explore the relationships between serum EDA levels and various metabolic indexes. METHODS A total of 184 subjects were enrolled in the study, including 92 subjects with newly diagnosed T2DM and 92 subjects with age- and sex-matched normal glucose tolerance (NGT). Serum EDA levels were determined using enzyme-linked immunosorbent assay (ELISA). Oral glucose tolerance test, glycosylated hemoglobin c (HbA1c), and insulin were also measured. RESULTS Serum EDA levels were significantly increased in the T2DM group than in the NGT group (359.91 ± 117.99 vs. 265.82 ± 86.51 pg/ml, p < 0.001). Serum EDA levels were positively correlated with body mass index (BMI), waist-to-hip ratio (WHR), fasting plasma glucose (FPG), HbA1c, 2-hour postprandial plasma glucose (2hPG), fasting plasma insulin (FIns), fasting C peptide (FCP), triglyceride (TG), HOMA-IR, and negatively correlated with high-density lipoprotein cholesterol (HDL-c) and HOMA-β (p < 0.05). Multiple stepwise regression analysis demonstrated that 2hPG and FIns were independent influencing factors of serum EDA level (p < 0.05). Logistic regression analysis showed that serum EDA level was significantly independently correlated with T2DM (p < 0.05). CONCLUSIONS Serum EDA levels are significantly higher in T2DM patients, suggesting that EDA may play a role in the occurrence and development of T2DM.
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Affiliation(s)
- Xia Deng
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Zhensheng Cai
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Yanyan Li
- Department of Endocrinology, Shanghai Pudong Hospital, Fudan University, Shanghai, China
| | - Xunan Wu
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Li Zhao
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Haoxiang Li
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Ke Chen
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Panpan Zhang
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Chenxi Wang
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Zhicong Zhao
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Ling Yang
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
- *Correspondence: Guoyue Yuan, ; Ling Yang,
| | - Guoyue Yuan
- Department of Endocrinology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
- *Correspondence: Guoyue Yuan, ; Ling Yang,
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21
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Targher G, Corey KE, Byrne CD. NAFLD, and cardiovascular and cardiac diseases: Factors influencing risk, prediction and treatment. DIABETES & METABOLISM 2020; 47:101215. [PMID: 33296704 DOI: 10.1016/j.diabet.2020.101215] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 11/11/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIM Non-alcoholic fatty liver disease (NAFLD), affecting up to around 30% of the world's adult population, causes considerable liver-related and extrahepatic morbidity and mortality. Strong evidence indicates that NAFLD (especially its more severe forms) is associated with a greater risk of all-cause mortality, and the predominant cause of mortality in this patient population is cardiovascular disease (CVD). This narrative review aims to discuss the strong association between NAFLD and increased risk of cardiovascular, cardiac and arrhythmic complications. Also discussed are the putative mechanisms linking NAFLD to CVD and other cardiac/arrhythmic complications, with a brief summary of CVD risk prediction/stratification and management of the increased CVD risk observed in patients with NAFLD. RESULTS NAFLD is associated with an increased risk of CVD events and other cardiac complications (left ventricular hypertrophy, valvular calcification, certain arrhythmias) independently of traditional CVD risk factors. The magnitude of risk of CVD and other cardiac/arrhythmic complications parallels the severity of NAFLD (especially liver fibrosis severity). There are most likely multiple underlying mechanisms through which NAFLD may increase risk of CVD and cardiac/arrhythmic complications. Indeed, NAFLD exacerbates hepatic and systemic insulin resistance, promotes atherogenic dyslipidaemia, induces hypertension, and triggers synthesis of proatherogenic, procoagulant and proinflammatory mediators that may contribute to the development of CVD and other cardiac/arrhythmic complications. CONCLUSION Careful assessment of CVD risk is mandatory in patients with NAFLD for primary prevention of CVD, together with pharmacological treatment for coexisting CVD risk factors.
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Affiliation(s)
- Giovanni Targher
- Section of Endocrinology, Diabetes and Metabolism, Department of Medicine, University and Azienda Ospedaliera Universitaria Integrata of Verona, Verona, Italy.
| | - Kathleen E Corey
- Liver Center, Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Christopher D Byrne
- Nutrition and Metabolism, Faculty of Medicine, University of Southampton, UK; National Institute for Health Research Southampton Biomedical Research Centre, University Hospital Southampton, Southampton General Hospital, Tremona Road, Southampton, UK
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Jensen-Cody SO, Potthoff MJ. Hepatokines and metabolism: Deciphering communication from the liver. Mol Metab 2020; 44:101138. [PMID: 33285302 PMCID: PMC7788242 DOI: 10.1016/j.molmet.2020.101138] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/19/2020] [Accepted: 12/01/2020] [Indexed: 02/09/2023] Open
Abstract
Background The liver is a key regulator of systemic energy homeostasis and can sense and respond to nutrient excess and deficiency through crosstalk with multiple tissues. Regulation of systemic energy homeostasis by the liver is mediated in part through regulation of glucose and lipid metabolism. Dysregulation of either process may result in metabolic dysfunction and contribute to the development of insulin resistance or fatty liver disease. Scope of review The liver has recently been recognized as an endocrine organ that secretes hepatokines, which are liver-derived factors that can signal to and communicate with distant tissues. Dysregulation of liver-centered inter-organ pathways may contribute to improper regulation of energy homeostasis and ultimately metabolic dysfunction. Deciphering the mechanisms that regulate hepatokine expression and communication with distant tissues is essential for understanding inter-organ communication and for the development of therapeutic strategies to treat metabolic dysfunction. Major conclusions In this review, we discuss liver-centric regulation of energy homeostasis through hepatokine secretion. We highlight key hepatokines and their roles in metabolic control, examine the molecular mechanisms of each hepatokine, and discuss their potential as therapeutic targets for metabolic disease. We also discuss important areas of future studies that may contribute to understanding hepatokine signaling under healthy and pathophysiological conditions.
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Affiliation(s)
- Sharon O Jensen-Cody
- Department of Neuroscience and Pharmacology, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA; Fraternal Order of Eagles Diabetes Research Center, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA; Iowa Neuroscience Institute, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA
| | - Matthew J Potthoff
- Department of Neuroscience and Pharmacology, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA; Fraternal Order of Eagles Diabetes Research Center, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA; Iowa Neuroscience Institute, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA; Department of Veterans Affairs Medical Center, Iowa City, IA 52242, USA.
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23
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The bile acid induced hepatokine orosomucoid suppresses adipocyte differentiation. Biochem Biophys Res Commun 2020; 534:864-870. [PMID: 33168190 DOI: 10.1016/j.bbrc.2020.10.086] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 10/27/2020] [Indexed: 01/06/2023]
Abstract
Bile acids have recently emerged as key metabolic hormones with beneficial impacts in multiple metabolic diseases. We previously discovered that hepatic bile acid overload distally modulates glucose and fatty acid metabolism in adipose tissues to exert anti-obesity effects. However, the detailed mechanisms that explain the salutary effects of serum bile acid elevation remain unclear. Here, proteomic profiling identified a new hepatokine, Orosomucoid (ORM) that governs liver-adipose tissue crosstalk. Hepatic ORMs were highly induced by both genetic and dietary bile acid overload. To address the direct metabolic effects of ORM, purified ORM proteins were administered during adipogenic differentiation of 3T3-L1 cells and mouse stromal vascular fibroblasts. ORM suppressed adipocyte differentiation and strongly inhibited gene expression of adipogenic transcription factors such as C/EBPβ, KLF5, C/EBPα, and PPARγ. Taken together, our data clearly suggest that bile acid-induced ORM secretion from the liver blocks adipocyte differentiation, potentially linked to anti-obesity effect of bile acids.
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24
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Huang K, Bai H. Liver hepatokines and peroxisomes as therapeutic targets for cardiovascular diseases. Future Cardiol 2020; 17:535-538. [PMID: 33090051 DOI: 10.2217/fca-2020-0166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Affiliation(s)
- Kerui Huang
- Department of Genetics, Development & Cell Biology, Iowa State University, Ames, IA 50011, USA
| | - Hua Bai
- Department of Genetics, Development & Cell Biology, Iowa State University, Ames, IA 50011, USA
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25
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Valsesia A, Chakrabarti A, Hager J, Langin D, Saris WHM, Astrup A, Blaak EE, Viguerie N, Masoodi M. Integrative phenotyping of glycemic responders upon clinical weight loss using multi-omics. Sci Rep 2020; 10:9236. [PMID: 32514005 PMCID: PMC7280519 DOI: 10.1038/s41598-020-65936-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 05/11/2020] [Indexed: 12/18/2022] Open
Abstract
Weight loss aims to improve glycemic control in obese but strong variability is observed. Using a multi-omics approach, we investigated differences between 174 responders and 201 non-responders, that had lost >8% body weight following a low-caloric diet (LCD, 800 kcal/d for 8 weeks). The two groups were comparable at baseline for body composition, glycemic control, adipose tissue transcriptomics and plasma ketone bodies. But they differed significantly in their response to LCD, including improvements in visceral fat, overall insulin resistance (IR) and tissue-specific IR. Transcriptomics analyses found down-regulation in key lipogenic genes (e.g. SCD, ELOVL5) in responders relative to non-responders; metabolomics showed increase in ketone bodies; while proteomics revealed differences in lipoproteins. Findings were consistent between genders; with women displaying smaller improvements owing to a better baseline metabolic condition. Integrative analyses identified a plasma omics model that was able to predict non-responders with strong performance (on a testing dataset, the Receiving Operating Curve Area Under the Curve (ROC AUC) was 75% with 95% Confidence Intervals (CI) [67%, 83%]). This model was based on baseline parameters without the need for intrusive measurements and outperformed clinical models (p = 0.00075, with a +14% difference on the ROC AUCs). Our approach document differences between responders and non-responders, with strong contributions from liver and adipose tissues. Differences may be due to de novo lipogenesis, keto-metabolism and lipoprotein metabolism. These findings are useful for clinical practice to better characterize non-responders both prior and during weight loss.
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Affiliation(s)
| | | | - Jörg Hager
- Nestlé Institute of Health Sciences, Lausanne, Switzerland
| | - Dominique Langin
- INSERM, UMR 1048, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France.,University of Toulouse, Paul Sabatier University, Toulouse, France.,Toulouse University Hospitals, Laboratory of Clinical Biochemistry, Toulouse, France
| | - Wim H M Saris
- Department of Human Biology, NUTRIM, School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+(MUMC+), Maastricht, The Netherlands
| | - Arne Astrup
- University of Copenhagen, Department of Nutrition, Exercise and Sports, Faculty of Science, Copenhagen, Denmark
| | - Ellen E Blaak
- Department of Human Biology, NUTRIM, School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+(MUMC+), Maastricht, The Netherlands
| | - Nathalie Viguerie
- INSERM, UMR 1048, Institute of Metabolic and Cardiovascular Diseases, Toulouse, France
| | - Mojgan Masoodi
- Nestlé Institute of Health Sciences, Lausanne, Switzerland. .,Institute of Clinical Chemistry, Inselspital, Bern University Hospital, Bern, Switzerland.
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26
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Abstract
PURPOSE OF REVIEW There is substantial inter-individual variability in body weight change, which is not fully accounted by differences in daily energy intake and physical activity levels. The metabolic responses to short-term perturbations in energy intake can explain part of this variability by quantifying the degree of metabolic "thriftiness" that confers more susceptibility to weight gain and more resistance to weight loss. It is unclear which metabolic factors and pathways determine this human "thrifty" phenotype. This review will investigate and summarize emerging research in the field of energy metabolism and highlight important metabolic mechanisms implicated in body weight regulation in humans. RECENT FINDINGS Dysfunctional adipose tissue lipolysis, reduced brown adipose tissue activity, blunted fibroblast growth factor 21 secretion in response to low-protein hypercaloric diets, and impaired sympathetic nervous system activity might constitute important metabolic factors characterizing "thriftiness" and favoring weight gain in humans. The individual propensity to weight gain in the current obesogenic environment could be ascertained by measuring specific metabolic factors which might open up new pathways to prevent and treat human obesity.
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Affiliation(s)
- Tim Hollstein
- Obesity and Diabetes Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, Phoenix, AZ, USA
| | - Paolo Piaggi
- Obesity and Diabetes Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, Phoenix, AZ, USA.
- Department of Information Engineering, University of Pisa, Pisa, Italy.
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27
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Gehrke N, Schattenberg JM. Metabolic Inflammation-A Role for Hepatic Inflammatory Pathways as Drivers of Comorbidities in Nonalcoholic Fatty Liver Disease? Gastroenterology 2020; 158:1929-1947.e6. [PMID: 32068022 DOI: 10.1053/j.gastro.2020.02.020] [Citation(s) in RCA: 105] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 02/05/2020] [Accepted: 02/11/2020] [Indexed: 02/06/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a global and growing health concern. Emerging evidence points toward metabolic inflammation as a key process in the fatty liver that contributes to multiorgan morbidity. Key extrahepatic comorbidities that are influenced by NAFLD are type 2 diabetes, cardiovascular disease, and impaired neurocognitive function. Importantly, the presence of nonalcoholic steatohepatitis and advanced hepatic fibrosis increase the risk for systemic comorbidity in NAFLD. Although the precise nature of the crosstalk between the liver and other organs has not yet been fully elucidated, there is emerging evidence that metabolic inflammation-in part, emanating from the fatty liver-is the engine that drives cellular dysfunction, cell death, and deleterious remodeling within various body tissues. This review describes several inflammatory pathways and mediators that have been implicated as links between NAFLD and type 2 diabetes, cardiovascular disease, and neurocognitive decline.
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Affiliation(s)
- Nadine Gehrke
- Metabolic Liver Research Program, I. Department of Medicine, University Medical Center, Mainz, Germany.
| | - Jörn M Schattenberg
- Metabolic Liver Research Program, I. Department of Medicine, University Medical Center, Mainz, Germany
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28
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Oishi Y, Manabe I. Organ System Crosstalk in Cardiometabolic Disease in the Age of Multimorbidity. Front Cardiovasc Med 2020; 7:64. [PMID: 32411724 PMCID: PMC7198858 DOI: 10.3389/fcvm.2020.00064] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 03/27/2020] [Indexed: 12/11/2022] Open
Abstract
The close association among cardiovascular, metabolic, and kidney diseases suggests a common pathological basis and significant interaction among these diseases. Metabolic syndrome and cardiorenal syndrome are two examples that exemplify the interlinked development of disease or dysfunction in two or more organs. Recent studies have been sorting out the mechanisms responsible for the crosstalk among the organs comprising the cardiovascular, metabolic, and renal systems, including heart-kidney and adipose-liver signaling, among many others. However, it is also becoming clear that this crosstalk is not limited to just pairs of organs, and in addition to organ-organ crosstalk, there are also organ-system and organ-body interactions. For instance, heart failure broadly impacts various organs and systems, including the kidney, liver, lung, and nervous system. Conversely, systemic dysregulation of metabolism, immunity, and nervous system activity greatly affects heart failure development and prognosis. This is particularly noteworthy, as more and more patients present with two or more coexisting chronic diseases or conditions (multimorbidity) due in part to the aging of society. Advances in treatment also contribute to the increase in multimorbidity, as exemplified by cardiovascular disease in cancer survivors. To understand the mechanisms underlying the increasing burden of multimorbidity, it is vital to elucidate the multilevel crosstalk and communication within the body at the levels of organ systems, tissues, and cells. In this article, we focus on chronic inflammation as a key common pathological basis of cardiovascular and metabolic diseases, and discuss emerging mechanisms that drive chronic inflammation in the context of multimorbidity.
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Affiliation(s)
- Yumiko Oishi
- Department of Biochemistry and Molecular Biology, Nippon Medical School, Tokyo, Japan
| | - Ichiro Manabe
- Department of Disease Biology and Molecular Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
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29
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Long W, Xie X, Du C, Zhao Y, Zhang C, Zhan D, Li Z, Ning Q, Luo X. Decreased Circulating Levels of Asprosin in Obese Children. Horm Res Paediatr 2020; 91:271-277. [PMID: 31212299 DOI: 10.1159/000500523] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 04/17/2019] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Circulating asprosin is a newly discovered adipokine that triggers the release of hepatic glucose stores and increases appetite. Asprosin levels are elevated in adult obese men as well as in mice, and reductions in asprosin protect against the hyperinsulinism associated with metabolic syndrome in mice with diet-induced obesity, which indicates a potential therapeutic role of asprosin in obesity and type 2 diabetes. OBJECTIVES Few data on asprosin in children are available, which is why this study aimed to assess concentrations of fasting asprosin, as well as its relationship to parameters of glucose and lipid metabolism, in children. METHODS Data on clinical and metabolic parameters were collected from 40 healthy normal-weight and 47 obese children. Circulating asprosin levels were measured using an ELISA. RESULTS The concentrations of fasting asprosin were lower in the obese children (9.24 ± 4.11 ng/mL) than in the normal-weight controls (12.33 ± 4.18 ng/mL, p < 0.001). When comparing the two groups by sex, both the boys and the girls showed similar trends. In within-group comparison, the asprosin levels were lower in boys than in girls only in the obese group (8.13 ± 4.10 vs. 10.61 ± 3.78 ng/mL, p = 0.013) but not in the control group. Interestingly, asprosin was correlated with ALT after adjusting for age and sex in all participants; in boys, asprosin was correlated with BMI, HOMA-IR, insulin, and HDL after adjusting for age. CONCLUSIONS Concentrations of asprosin were significantly lower in obese children than in normal-weight children, and there was a gender difference in asprosin concentration. Our results suggest a complex role for asprosin in energy metabolism.
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Affiliation(s)
- Wenjun Long
- Department of Pediatrics, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China,
| | - Xuemei Xie
- Department of Endocrinology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Caiqi Du
- Department of Pediatrics, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Yue Zhao
- Department of Pediatrics, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Cai Zhang
- Department of Pediatrics, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Di Zhan
- Department of Pediatrics, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Zhuxi Li
- Department of Pediatrics, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Qin Ning
- Department of Infectious Diseases, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoping Luo
- Department of Pediatrics, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
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30
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Jung TW, Ahn SH, Shin JW, Kim HC, Park ES, Abd El-Aty AM, Hacımüftüoğlu A, Song KH, Jeong JH. Protectin DX ameliorates palmitate-induced hepatic insulin resistance through AMPK/SIRT1-mediated modulation of fetuin-A and SeP expression. Clin Exp Pharmacol Physiol 2019; 46:898-909. [PMID: 31246318 DOI: 10.1111/1440-1681.13131] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 05/08/2019] [Accepted: 06/21/2019] [Indexed: 12/15/2022]
Abstract
The role as well as the molecular mechanisms of protectin DX (PDX) in the prevention of hepatic insulin resistance, a hallmark of type 2 diabetes, remains unknown. Therefore, the present study was designed to explore the direct impact of PDX on insulin resistance and to investigate the expression of fetuin-A and selenoprotein P (SeP), hepatokines that are involved in insulin signalling, in hepatocytes. Human serum levels of PDX as well as fetuin-A and SeP were determined by high-performance liquid chromatography (HPLC). Human primary hepatocytes were treated with palmitate and PDX. NF-κB phosphorylation as well as expression of insulin signalling associated genes and hepatokines were determined by Western blotting analysis. FOXO1 binding levels were measured by quantitative real-time PCR. Selected genes from candidate pathways were evaluated by small interfering (si) RNA-mediated gene suppression. Serum PDX levels were significantly (P < 0.05) downregulated, whereas serum fetuin-A and SeP levels were increased (P < 0.05) in obese subjects compared with healthy subjects. In in vitro experiments, PDX treatment increased AMP-activated protein kinase (AMPK) phosphorylation and SIRT1 expression and attenuated palmitate-induced fetuin-A and SeP expression and insulin resistance in hepatocytes. AMPK or SIRT1 siRNA mitigated the suppressive effects of PDX on palmitate-induced fetuin-A through NF-κB and SeP expression linked to FOXO1 and insulin resistance. Recombinant fetuin-A and SeP reversed the suppressive effects of fetuin-A and SeP expression on palmitate-mediated impairment of insulin signalling. The current finding provides novel insight into the underlying mechanism linking hepatokines to the pathogenesis of hepatic insulin resistance.
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Affiliation(s)
- Tae Woo Jung
- Department of Pharmacology, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Sung Ho Ahn
- Department of Pathology, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Jong Wook Shin
- Department of Internal Medicine, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Hyoung-Chun Kim
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Chunchon, Korea
| | - Eon Sub Park
- Department of Pathology, College of Medicine, Chung-Ang University, Seoul, Korea
| | - A M Abd El-Aty
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.,Department of Medical Pharmacology, Medical Faculty, Ataturk University, Erzurum, Turkey
| | - Ahmet Hacımüftüoğlu
- Department of Medical Pharmacology, Medical Faculty, Ataturk University, Erzurum, Turkey
| | - Ki Hak Song
- Department of Urology, College of Medicine, Chungnam National University, Daejeon, Korea
| | - Ji Hoon Jeong
- Department of Pharmacology, College of Medicine, Chung-Ang University, Seoul, Korea
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31
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Esfahani M, Baranchi M, Goodarzi MT. The implication of hepatokines in metabolic syndrome. Diabetes Metab Syndr 2019; 13:2477-2480. [PMID: 31405664 DOI: 10.1016/j.dsx.2019.06.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 06/27/2019] [Indexed: 01/26/2023]
Abstract
Hepatokines are liver-derived proteins with equivocal roles in metabolic syndrome (MetS). These proteins have prominent role in pathogenesis of MetS component such as obesity, insulin resistance, dyslipidemia and hypertension. The identification and functional characterization of hepatokines may provide significant insights that could help in better understanding of MetS pathogenesis. Fetuin-A, Hepatocyte-derived fibrinogen-related protein 1, Fibroblast growth factor 21, Angiopoietin-related growth factor, Selenoprotein-P, Angiopoietin like proteins, Leukocyte cell-derived chemotaxin 2 are regarded as the most significant hepatokines. We describe recent data on these new hormones in progression of MetS. Understanding of the accurate role of these proteins in pathophysiology of MetS can help improving prevention and treatment of this syndrome.
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Affiliation(s)
| | | | - Mohammad Taghi Goodarzi
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
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32
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HMGB1 and SEPP1 as predictors of hepatocellular carcinoma in patients with viral C hepatitis: Effect of DAAs. Clin Biochem 2019; 70:8-13. [PMID: 31158358 DOI: 10.1016/j.clinbiochem.2019.05.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 05/16/2019] [Accepted: 05/30/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Hepatitis C viral infection (HCV) and hepatocellular carcinoma (HCC) are potential health problems. New directly acting antivirals (DAAs) changed HCV treatment strategies. Selenoprotein P1 (SEPP1) is a hepatokine implicated in HCC pathogenesis. High mobility group box1 (HMGB1), a nuclear DNA-binding protein, involved in immune and inflammatory responses in HCV and HCC. Therefore, the aim of current study was to investigate HMGB1 and SEPP1 levels in HCV and HCV + HCC patients and exploring DAAs effect on them. METHODS 15 healthy volunteers, 25 HCV and 25 HCV + HCC patients were included. Liver function tests, alpha fetoprotein (AFP), SEPP1 and HMGB1 serum levels were evaluated. For HCV group blood samples before and after treatment with sofosbuvir/daclatasvir combination were collected. RESULTS HMGB1 was significantly higher in HCV + HCC group than in control and HCV groups (p < .05). SEPP1 decreased significantly in HCV and HCV + HCC groups compared to control group (p < .001). SEPP1 significantly elevated after treatment with DAAs (p = .001). HMGB1 and SEPP1 were negatively correlated with each other in HCV group (p = .047). Logistic regression analysis showed that HMGB1 and SEPP1 could be used as predictors for HCC in HCV infected patients (p = .02,p = .002) respectively. Receiver operating characteristic curve (ROC) revealed HMGB1 had 32% sensitivity and 100% specificity in differentiating HCV from HCV + HCC patients, both SEPP1 and HMGB1 had high sensitivity (92%,60%) and 93% specificity in differentiating healthy from HCV + HCC group. CONCLUSION HMGB1 and SEPP1 are involved in pathogenesis of HCV and HCV induced HCC. Both of them could serve as predictive biomarkers for HCC in HCV patients.
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33
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Gharipour M, Sadeghi M, Behmanesh M, Salehi M, Roohafza H, Nezafati P, Khosravi E, Hosseini M, Keshvari M, Rouhi-Bourojeni H, Sarrafzadegan N. Proposal of a study protocol of a preliminary double-blind randomized controlled trial. Verifying effects of selenium supplementation on selenoprotein p and s genes expression in protein and mRNA levels in subjects with coronary artery disease: selenegene. ACTA BIO-MEDICA : ATENEI PARMENSIS 2019; 90:44-50. [PMID: 30889154 PMCID: PMC6502150 DOI: 10.23750/abm.v90i1.6167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/04/2017] [Accepted: 04/24/2017] [Indexed: 01/08/2023]
Abstract
Background: Selenium is the component of selenocystein amino acid, which itself is the building block of selenoproteins having diverse effects on various aspects of the human health. Among these proteins, selenoprotein P is the central to the distribution and homeostasis of selenium, and selenoprotein S as a transmembrane protein is associated with a range of inflammatory markers, particularly in the context of cardiovascular disease. It is known that selenium status outside of the normal range is considered to confer different benefits or adverse cardiovascular risk factors. Therefore, for the first time, we aimed to verify effects of Selenium supplementation on Selenoprotein P and S Genes Expression in Protein and mRNA Levels in Subjects with Coronary Artery Disease (CAD). Methods: This is the study protocol of a double blinded randomized clinical trial on 130 subjects with angiographically documented stenosis of more than 75% in one or more coronary artery vessels. In this 60-day study, 65 patients in each group received either a 200mg selenium yeast or placebo tablets once daily. During the study, subjects were followed by phone calls and visited our clinic twice to repeat baseline measurements. We hypothesized that our finding would enable a more basic and confirmed understanding for the effect of selenium supplementation by investigating its effect on gene expression levels in people with CAD. Discussion: Upon confirmation of this hypothesis, the beneficial effect of inflammation regulation by supplementation with micronutrients could be considered for subjects with CVD. (www.actabiomedica.it)
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Affiliation(s)
- Mojgan Gharipour
- Isfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran.
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34
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Ramírez-Vélez R, García-Hermoso A, Hackney AC, Izquierdo M. Effects of exercise training on Fetuin-a in obese, type 2 diabetes and cardiovascular disease in adults and elderly: a systematic review and Meta-analysis. Lipids Health Dis 2019; 18:23. [PMID: 30670052 PMCID: PMC6343360 DOI: 10.1186/s12944-019-0962-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 01/06/2019] [Indexed: 12/18/2022] Open
Abstract
Background Elevated levels of fetuin-A are associated with increased risks of metabolic syndrome, type 2 diabetes and nonalcoholic fatty liver disease. This meta-analysis investigated whether exercise interventions can reduce fetuin-A in adults. Methods We searched clinical trials that objectively assessed fetuin-A and included study arms with exercise intervention. The pre-intervention and post-intervention data were used for meta-analysis. The effect sizes were calculated as standardized mean differences or changes in fetuin-A and expressed as Hedges’ g using random-effects models. Results The overall Hedges’ g for fetuin-A in all included interventions was − 0.640 (95%CI − 1.129 to − 0.151; n = 9), but this effect was not observed in obese (g = − 0.096; 95%CI, − 0.328 to 0.135) and type 2 diabetes/dysglycemia (g = − 0.56; 95%CI, − 1.348 to 0.236) individuals. Additionally, the random-effects meta-regression analysis showed that there was not a greater decrease in fetuin-A in individuals who achieved greater body mass index reductions (regression coefficient = 0.065; 95%CI, − 0.185 to 0.315). Conclusion Supervised exercise is associated with reductions in fetuin-A levels in adults and elderly. However, the results of the present meta-analysis should be interpreted with caution because of the variety of type of exercises and individual obesity related-disorders involve. Therefore, additional high-quality randomized controlled trials describing the effect of supervised exercise interventions on fetuin-A in adults are still needed. Electronic supplementary material The online version of this article (10.1186/s12944-019-0962-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Robinson Ramírez-Vélez
- Centro de Estudios para la Medición de la Actividad Física CEMA, Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogotá, 111221, Colombia.
| | - Antonio García-Hermoso
- Laboratorio de Ciencias de la Actividad Física, el Deporte y la Salud, Facultad de Ciencias Médicas, Universidad de Santiago de Chile, USACH, 7500618, Santiago, Chile
| | - Anthony C Hackney
- Department of Exercise and Sport Science, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Mikel Izquierdo
- Department of Health Sciences, Public University of Navarre, CIBERFES (CB16/10/00315), Pamplona, Navarre, Spain
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35
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Causes and solutions to “globesity”: The new fa(s)t alarming global epidemic. Food Chem Toxicol 2018; 121:173-193. [DOI: 10.1016/j.fct.2018.08.071] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 08/10/2018] [Accepted: 08/29/2018] [Indexed: 12/12/2022]
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36
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Sefried S, Häring HU, Weigert C, Eckstein SS. Suitability of hepatocyte cell lines HepG2, AML12 and THLE-2 for investigation of insulin signalling and hepatokine gene expression. Open Biol 2018; 8:rsob.180147. [PMID: 30355754 PMCID: PMC6223207 DOI: 10.1098/rsob.180147] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 09/28/2018] [Indexed: 12/30/2022] Open
Abstract
Immortal hepatocyte cell lines are widely used to elucidate insulin-dependent signalling pathways and regulation of hepatic metabolism, although the often tumorigenic origin might not represent the metabolic state of healthy hepatocytes. We aimed to investigate if murine cell line AML12 and human cell line THLE-2, which are derived from healthy liver cells, are comparable to hepatoma cell line HepG2 for studying acute insulin signalling and expression of gluconeogenic enzymes and hepatokines. Insulin responsiveness of AML12 and THLE-2 cells was impaired when cells were cultured in the recommended growth medium, but comparable with HepG2 cells by using insulin-deficient medium. THLE-2 cells showed low abundance of insulin receptor, while protein levels in HepG2 and AML12 were comparable. AML12 and THLE-2 cells showed only low or non-detectable transcript levels of G6PC and PCK1. Expression of ANGPTL4 was regulated similarly in HepG2 and AML12 cells upon peroxisome proliferator-activated receptor δ activation but only HepG2 cells resemble the in vivo regulation of hepatic ANGPTL4 by cAMP. Composition of the culture medium and protein expression levels of key signalling proteins should be considered when AML12 and THLE-2 are used to study insulin signalling. With regard to gluconeogenesis and hepatokine expression, HepG2 cells appear to be closer to the in vivo situation despite the tumorigenic origin.
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Affiliation(s)
- Stephanie Sefried
- Division of Pathobiochemistry and Clinical Chemistry, Department of Internal Medicine IV, University Hospital Tübingen, Tübingen, Germany
| | - Hans-Ulrich Häring
- Division of Pathobiochemistry and Clinical Chemistry, Department of Internal Medicine IV, University Hospital Tübingen, Tübingen, Germany.,German Center for Diabetes Research (DZD), München-Neuherberg, Germany.,Institute for Diabetes Research and Metabolite Diseases of the Helmholtz Centre Munich at the University of Tübingen, Tübingen, Germany
| | - Cora Weigert
- Division of Pathobiochemistry and Clinical Chemistry, Department of Internal Medicine IV, University Hospital Tübingen, Tübingen, Germany .,German Center for Diabetes Research (DZD), München-Neuherberg, Germany.,Institute for Diabetes Research and Metabolite Diseases of the Helmholtz Centre Munich at the University of Tübingen, Tübingen, Germany
| | - Sabine S Eckstein
- Division of Pathobiochemistry and Clinical Chemistry, Department of Internal Medicine IV, University Hospital Tübingen, Tübingen, Germany
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Smith RL, Soeters MR, Wüst RCI, Houtkooper RH. Metabolic Flexibility as an Adaptation to Energy Resources and Requirements in Health and Disease. Endocr Rev 2018; 39:489-517. [PMID: 29697773 PMCID: PMC6093334 DOI: 10.1210/er.2017-00211] [Citation(s) in RCA: 324] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Accepted: 04/19/2018] [Indexed: 12/15/2022]
Abstract
The ability to efficiently adapt metabolism by substrate sensing, trafficking, storage, and utilization, dependent on availability and requirement, is known as metabolic flexibility. In this review, we discuss the breadth and depth of metabolic flexibility and its impact on health and disease. Metabolic flexibility is essential to maintain energy homeostasis in times of either caloric excess or caloric restriction, and in times of either low or high energy demand, such as during exercise. The liver, adipose tissue, and muscle govern systemic metabolic flexibility and manage nutrient sensing, uptake, transport, storage, and expenditure by communication via endocrine cues. At a molecular level, metabolic flexibility relies on the configuration of metabolic pathways, which are regulated by key metabolic enzymes and transcription factors, many of which interact closely with the mitochondria. Disrupted metabolic flexibility, or metabolic inflexibility, however, is associated with many pathological conditions including metabolic syndrome, type 2 diabetes mellitus, and cancer. Multiple factors such as dietary composition and feeding frequency, exercise training, and use of pharmacological compounds, influence metabolic flexibility and will be discussed here. Last, we outline important advances in metabolic flexibility research and discuss medical horizons and translational aspects.
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Affiliation(s)
- Reuben L Smith
- Laboratory of Genetic Metabolic Diseases, Academic Medical Center, AZ Amsterdam, Netherlands.,Amsterdam Gastroenterology and Metabolism, Academic Medical Center, AZ Amsterdam, Netherlands
| | - Maarten R Soeters
- Amsterdam Gastroenterology and Metabolism, Academic Medical Center, AZ Amsterdam, Netherlands.,Department of Endocrinology and Metabolism, Internal Medicine, Academic Medical Center, AZ Amsterdam, Netherlands
| | - Rob C I Wüst
- Laboratory of Genetic Metabolic Diseases, Academic Medical Center, AZ Amsterdam, Netherlands.,Amsterdam Cardiovascular Sciences, Academic Medical Center, AZ Amsterdam, Netherlands.,Amsterdam Movement Sciences, Academic Medical Center, AZ Amsterdam, Netherlands
| | - Riekelt H Houtkooper
- Laboratory of Genetic Metabolic Diseases, Academic Medical Center, AZ Amsterdam, Netherlands.,Amsterdam Gastroenterology and Metabolism, Academic Medical Center, AZ Amsterdam, Netherlands.,Amsterdam Cardiovascular Sciences, Academic Medical Center, AZ Amsterdam, Netherlands
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38
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Schuster S, Cabrera D, Arrese M, Feldstein AE. Triggering and resolution of inflammation in NASH. Nat Rev Gastroenterol Hepatol 2018; 15:349-364. [PMID: 29740166 DOI: 10.1038/s41575-018-0009-6] [Citation(s) in RCA: 524] [Impact Index Per Article: 87.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Nonalcoholic steatohepatitis (NASH) is considered the progressive form of nonalcoholic fatty liver disease (NAFLD) and is characterized by liver steatosis, inflammation, hepatocellular injury and different degrees of fibrosis. A central issue in this field relates to the identification of those factors that trigger inflammation, thus fuelling the transition from nonalcoholic fatty liver to NASH. These triggers of liver inflammation might have their origins outside the liver (such as in adipose tissue or the gut) as well as inside the organ (for instance, lipotoxicity, innate immune responses, cell death pathways, mitochondrial dysfunction and endoplasmic reticulum stress), both of which contribute to NASH development. In this Review, we summarize the currently available information on the key upstream triggers of inflammation in NASH. We further delineate the mechanisms by which liver inflammation is resolved and the implications of a defective pro-resolution process. A better knowledge of these mechanisms should help to design targeted therapies able to halt or reverse disease progression.
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Affiliation(s)
- Susanne Schuster
- Department of Pediatrics, University of California, San Diego, CA, USA
| | - Daniel Cabrera
- Department of Gastroenterology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.,Departamento de Ciencias Químicas y Biológicas, Facultad de Salud, Universidad Bernardo O Higgins, Santiago, Chile
| | - Marco Arrese
- Department of Gastroenterology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.,Centre for Aging and Regeneration (CARE), Department of Cellular and Molecular Biology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Ariel E Feldstein
- Department of Pediatrics, University of California, San Diego, CA, USA.
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Onishi S, Kitazawa H, Meguro S, Tokimitsu I. Green tea extracts reduce leukocyte cell-Derived chemotaxin 2 and selenoprotein P levels in the livers of C57BL/6J mice fed a high-fat diet. Biosci Biotechnol Biochem 2018; 82:1568-1575. [PMID: 29848194 DOI: 10.1080/09168451.2018.1480349] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Epidemiological studies suggest that green tea extracts (GTEs), including catechins such as epigallocatechin gallate and epicatechin gallate, have a beneficial effect on obesity, hyperglycemia, insulin resistance, endothelial dysfunction, and inflammation. Although several studies have shown that catechins directly modulate the cellular and molecular alterations in the liver tissue, the contributions of indirect mechanisms underlying these systemic effects of catechins remain unclear. In this study, we report that, in the C57BL/6J mouse liver, GTEs reduce high-fat diet-induced increases in the levels of hepatokines, liver-derived secretary proteins such as leukocyte cell-derived chemotaxin 2 and selenoprotein P production, which have been shown to induce systemic adverse effects, including several metabolic diseases. These findings suggest that the systemic effects of GTEs involve the regulation of hepatokine production as an indirect mechanism.
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Affiliation(s)
- Shintaro Onishi
- a Biological Science Research , Kao Corporation , Tochigi , Japan.,b Industry-Academia Collaboration Research Laboratory of the University of Shizuoka and Kao Corporation, University of Shizuoka , Shizuoka , Japan
| | - Hidefumi Kitazawa
- a Biological Science Research , Kao Corporation , Tochigi , Japan.,b Industry-Academia Collaboration Research Laboratory of the University of Shizuoka and Kao Corporation, University of Shizuoka , Shizuoka , Japan
| | - Shinichi Meguro
- a Biological Science Research , Kao Corporation , Tochigi , Japan.,b Industry-Academia Collaboration Research Laboratory of the University of Shizuoka and Kao Corporation, University of Shizuoka , Shizuoka , Japan
| | - Ichiro Tokimitsu
- b Industry-Academia Collaboration Research Laboratory of the University of Shizuoka and Kao Corporation, University of Shizuoka , Shizuoka , Japan.,c Department of Health and Food Science , University of Human Arts and Science , Magome, Iwatsuki-ku, Saitama-shi, Saitama , Japan
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40
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Roshanzamir F, Miraghajani M, Rouhani MH, Mansourian M, Ghiasvand R, Safavi SM. The association between circulating fetuin-A levels and type 2 diabetes mellitus risk: systematic review and meta-analysis of observational studies. J Endocrinol Invest 2018. [PMID: 28643299 DOI: 10.1007/s40618-017-0697-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND OBJECTIVE Fetuin-A is a liver-derived circulating protein that is associated with insulin resistance and diabetes. The objective of this systematic review and meta-analysis of published observational studies was to investigate mean levels of fetuin-A in T2D patients and the relationship between blood fetuin-A levels and T2D risk. MATERIALS AND METHODS PubMed, Embase, Google Scholar, Web of Science, and The Cochrane Library were systematically searched for potential relevant studies up to 1 December 2016. Natural logarithm-transformed estimate risks, standard mean differences on the basis of Hedges's adjusted g, and 95% confidence intervals (CIs) were calculated for all eligible studies and were combined to measure the pooled data using random-effects model. RESULTS A total of 32 studies including 27 case-control and 5 cohort studies were included in the current study. Fetuin-A levels in T2D patients were significantly higher than control groups [Hedges' g = 1.73, 95% CI (1.25-2.22), P < 0.001], with significant heterogeneity across studies (P < 0.001, I 2 = 98.46%). Findings from meta-analyses of cohort studies showed a statistically significant association between fetuin-A levels and T2D risk [rate ratio = 1.62, 95% CI (1.26-2.08), P < 0.001], with no significant heterogeneity (P = 0.10, I 2 = 46.06%). CONCLUSION We found a significant relationship between the fetuin-A levels with T2D risk. Although fetuin-A may be as a potential screening and prediction biomarker or a therapeutic target in T2D patients, further studies are required in this regard.
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Affiliation(s)
- F Roshanzamir
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
- Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
- Department of Clinical Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - M Miraghajani
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - M H Rouhani
- Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
- Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - M Mansourian
- Department of Biostatistics and Epidemiology, Health School, Isfahan University of Medical Sciences, Isfahan, Iran
| | - R Ghiasvand
- Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
- Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - S M Safavi
- Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
- Department of Clinical Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran.
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Lee S, Norheim F, Gulseth HL, Langleite TM, Kolnes KJ, Tangen DS, Stadheim HK, Gilfillan GD, Holen T, Birkeland KI, Jensen J, Drevon CA. Interaction between plasma fetuin-A and free fatty acids predicts changes in insulin sensitivity in response to long-term exercise. Physiol Rep 2017; 5:5/5/e13183. [PMID: 28270597 PMCID: PMC5350184 DOI: 10.14814/phy2.13183] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 01/30/2017] [Accepted: 02/05/2017] [Indexed: 12/12/2022] Open
Abstract
The hepatokine fetuin‐A can together with free fatty acids (FFAs) enhance adipose tissue (AT) inflammation and insulin resistance via toll‐like receptor 4 (TLR4). Although some of the health benefits of exercise can be explained by altered release of myokines from the skeletal muscle, it is not well documented if some of the beneficial effects of exercise can be explained by altered secretion of hepatokines. The aim of this study was to examine the effect of interaction between fetuin‐A and FFAs on insulin sensitivity after physical exercise. In this study, 26 sedentary men who underwent 12 weeks of combined endurance and strength exercise were included. Insulin sensitivity was measured using euglycemic‐hyperinsulinemic clamp, and AT insulin resistance was indicated by the product of fasting plasma concentration of FFAs and insulin. Blood samples and biopsies from skeletal muscle and subcutaneous AT were collected. Several phenotypic markers were measured, and mRNA sequencing was performed on the biopsies. AT macrophages were analyzed based on mRNA markers. The intervention improved hepatic parameters, reduced plasma fetuin‐A concentration (~11%, P < 0.01), slightly changed FFAs concentration, and improved glucose infusion rate (GIR) (~33%, P < 0.01) across all participants. The change in circulating fetuin‐A and FFAs interacted to predict some of the change in GIR (β = −42.16, P = 0.030), AT insulin resistance (β = 0.579, P = 0.003), gene expression related to TLR‐signaling in AT and AT macrophage mRNA (β = 94.10, P = 0.034) after exercise. We observed no interaction effects between FFAs concentrations and leptin and adiponectin on insulin sensitivity, or any interaction effects between Fetuin‐A and FFAs concentrations on skeletal muscle TLR‐signaling. The relationship between FFAs levels and insulin sensitivity seemed to be specific for fetuin‐A and the AT. Some of the beneficial effects of exercise on insulin sensitivity may be explained by changes in circulating fetuin‐A and FFAs, promoting less TLR4 signaling in AT perhaps by modulating AT macrophages.
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Affiliation(s)
- Sindre Lee
- Department of Nutrition, Institute of Basic Medical Sciences Faculty of Medicine University of Oslo, Oslo, Norway
| | - Frode Norheim
- Department of Nutrition, Institute of Basic Medical Sciences Faculty of Medicine University of Oslo, Oslo, Norway.,Division of Cardiology, Department of Medicine University of California at Los Angeles, Los Angeles, California
| | - Hanne L Gulseth
- Institute of Clinical Medicine, Faculty of Medicine University of Oslo, Oslo, Norway
| | - Torgrim M Langleite
- Department of Nutrition, Institute of Basic Medical Sciences Faculty of Medicine University of Oslo, Oslo, Norway
| | - Kristoffer J Kolnes
- Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway
| | - Daniel S Tangen
- Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway
| | - Hans K Stadheim
- Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway
| | - Gregor D Gilfillan
- Department of Medical Genetics, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Torgeir Holen
- Department of Nutrition, Institute of Basic Medical Sciences Faculty of Medicine University of Oslo, Oslo, Norway
| | - Kåre I Birkeland
- Institute of Clinical Medicine, Faculty of Medicine University of Oslo, Oslo, Norway.,Department of Endocrinology, Morbid Obesity and Preventive Medicine Oslo University Hospital, Oslo, Norway
| | - Jørgen Jensen
- Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway
| | - Christian A Drevon
- Department of Nutrition, Institute of Basic Medical Sciences Faculty of Medicine University of Oslo, Oslo, Norway
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González-Ruiz K, Ramírez-Vélez R, Correa-Bautista JE, Peterson MD, García-Hermoso A. The Effects of Exercise on Abdominal Fat and Liver Enzymes in Pediatric Obesity: A Systematic Review and Meta-Analysis. Child Obes 2017; 13:272-282. [PMID: 28322576 DOI: 10.1089/chi.2017.0027] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Despite the prevalence of obesity and the multiple position stands promoting exercise for the treatment of obesity and hepatic function, a meta-analytic approach has not previously been used to examine the effects in the pediatric population. The aim of the study was to determine the effectiveness of exercise interventions on abdominal fat, liver enzymes, and intrahepatic fat in overweight and obese youth. MATERIALS AND METHODS A computerized search was made using three databases. The analysis was restricted to studies that examined the effect of supervised exercise interventions on abdominal fat (visceral and subcutaneous fat), liver enzymes (alanine aminotransferase, aspartate aminotransferase, and gamma-glutamyl transferase), and intrahepatic fat. Fourteen clinical trials (1231 youths) were eligible for inclusion in this systematic review and meta-analysis. Standardized mean difference [SMD] and 95% confidence intervals (CIs) were calculated. RESULTS Exercise was associated with a significant reduction in visceral (SMD = -0.661; 95% CI, -0.976 to -0.346; p < 0.001), subcutaneous (SMD = -0.352; 95% CI, -0.517 to -0.186; p < 0.001) and intrahepatic fat (SMD = -0.802; 95% CI, -1.124 to -0.480; p < 0.001), as well as gamma-glutamyl transferase (SMD = -0.726; 95% CI, -1.203 to -0.249; p < 0.001), but did not alter any other liver enzyme. Subgroup analysis recommends exercise programs that involve aerobic exercise longer than three sessions per week. CONCLUSIONS This meta-analysis supports current recommendation for physical exercise, mainly aerobic, as an effective intervention for nonalcoholic fatty liver disease progression by targeting hepatic lipid composition, visceral and subcutaneous adipose tissue. Systematic review registration: PROSPERO CRD42016042163.
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Affiliation(s)
- Katherine González-Ruiz
- 1 Centro de Estudios para la Medición de la Actividad Física (CEMA), Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario , Bogotá DC, Colombia .,2 Grupo de Investigación en Ejercicio Físico y Deporte, Vicerrectoría de investigación, Universidad Manuela Beltrán , Bogotá, DC, Colombia
| | - Robinson Ramírez-Vélez
- 1 Centro de Estudios para la Medición de la Actividad Física (CEMA), Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario , Bogotá DC, Colombia
| | - Jorge Enrique Correa-Bautista
- 1 Centro de Estudios para la Medición de la Actividad Física (CEMA), Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario , Bogotá DC, Colombia
| | - Mark D Peterson
- 3 Department of Physical Medicine and Rehabilitation, University of Michigan , Ann Arbor, MI.,4 Global REACH, University of Michigan Medical School, University of Michigan , Ann Arbor, MI
| | - Antonio García-Hermoso
- 5 Laboratorio de Ciencias de la Actividad Física, el Deporte y la Salud, Facultad de Ciencias Médicas, Universidad de Santiago de Chile (USACH) , Santiago, Chile
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Jorgačević B, Vučević D, Đuričić I, Šobajić S, Mladenović D, Vesković M, Vukićević RJ, Radosavljević T. The effect of cannabinoid receptor 1 blockade on hepatic free fatty acid profile in mice with nonalcoholic fatty liver disease. Chem Phys Lipids 2017; 204:85-93. [PMID: 28363784 DOI: 10.1016/j.chemphyslip.2017.03.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Revised: 03/06/2017] [Accepted: 03/14/2017] [Indexed: 02/05/2023]
Abstract
We used rimonabant to investigate the role of CB1 receptor on hepatic FFAs profile during NAFLD. Male mice C57BL/6 were divided into: control group fed with control diet 20 weeks (C; n=6); group fed with HFD 20 weeks (HF; n=6); group fed with control diet and treated with rimonabant after 18 weeks (R; n=9); group fed with HFD and treated with rimonabant after 18 weeks (HFR; n=10). Rimonabant (10mg/kg) was administered daily to HFR and R group by oral gavage. Rimonabant decreased liver palmitic acid proportion in HFR group compared to HF group (p<0.05). Liver stearic and oleic acid proportions were decreased in R group compared to control (p<0.01 respectively). Rimonabant increased liver linoleic and arachidonic acid proportions in HFR group compared to HF group (p<0.01 respectively). CB1 blockade may be useful in the treatment of HFD-induced NAFLD due to modulation of plasma lipid and hepatic FFA profile.
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Affiliation(s)
- Bojan Jorgačević
- Institute of Pathophysiology "Ljubodrag Buba Mihailović", Faculty of Medicine, University of Belgrade, Serbia
| | - Danijela Vučević
- Institute of Pathophysiology "Ljubodrag Buba Mihailović", Faculty of Medicine, University of Belgrade, Serbia
| | - Ivana Đuričić
- Department for Bromatology, Faculty of Farmacy, University of Belgrade, Serbia
| | - Slađana Šobajić
- Department for Bromatology, Faculty of Farmacy, University of Belgrade, Serbia
| | - Dušan Mladenović
- Institute of Pathophysiology "Ljubodrag Buba Mihailović", Faculty of Medicine, University of Belgrade, Serbia
| | - Milena Vesković
- Institute of Pathophysiology "Ljubodrag Buba Mihailović", Faculty of Medicine, University of Belgrade, Serbia
| | | | - Tatjana Radosavljević
- Institute of Pathophysiology "Ljubodrag Buba Mihailović", Faculty of Medicine, University of Belgrade, Serbia.
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Venniyoor A. The most important questions in cancer research and clinical oncology-Question 2-5. Obesity-related cancers: more questions than answers. CHINESE JOURNAL OF CANCER 2017; 36:18. [PMID: 28143590 PMCID: PMC5286818 DOI: 10.1186/s40880-017-0185-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 01/11/2017] [Indexed: 12/12/2022]
Abstract
Obesity is recognized as the second highest risk factor for cancer. The pathogenic mechanisms underlying tobacco-related cancers are well characterized and effective programs have led to a decline in smoking and related cancers, but there is a global epidemic of obesity without a clear understanding of how obesity causes cancer. Obesity is heterogeneous, and approximately 25% of obese individuals remain healthy (metabolically healthy obese, MHO), so which fat deposition (subcutaneous versus visceral, adipose versus ectopic) is "malignant"? What is the mechanism of carcinogenesis? Is it by metabolic dysregulation or chronic inflammation? Through which chemokines/genes/signaling pathways does adipose tissue influence carcinogenesis? Can selective inhibition of these pathways uncouple obesity from cancers? Do all obesity related cancers (ORCs) share a molecular signature? Are there common (over-lapping) genetic loci that make individuals susceptible to obesity, metabolic syndrome, and cancers? Can we identify precursor lesions of ORCs and will early intervention of high risk individuals alter the natural history? It appears unlikely that the obesity epidemic will be controlled anytime soon; answers to these questions will help to reduce the adverse effect of obesity on human condition.
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